阅读说明：本技术 一种雾霾天气能见度散射式测量方法 (Scattering type measurement method for visibility in haze weather ) 是由 杨玲 程勇 于 2021-08-16 设计创作，主要内容包括：本发明公开了一种雾霾天气能见度散射式测量方法,包括以下步骤：准备工作：在机场设置可对航空环境的能见度进行散射式测量的散射式测量仪本体；预处理：在雾霾天气出现时,测量仪控制器预先控制温感控制器；电热引导圈通电处理；本发明在雾霾天气检测能见度时,通过仿生瞬膜对透光镜片进行提前清洁,有效清洁透光镜片表面的水雾、尘土等杂质,提高透光镜片的通透程度,有效保证测量发生器和测量接收器的光学视程,减少测量数据的误差值,辅助航空站做出正确指令,减少由于天气原因造成的经济损失,并且通过多次反复测量,进一步提高航空能见度的准确度,提高航空运行的安全性。(The invention discloses a scattering type measurement method for visibility in haze weather, which comprises the following steps: preparation work: a scattering type measuring instrument body capable of carrying out scattering type measurement on the visibility of an aviation environment is arranged at an airport; pretreatment: when haze weather occurs, the measuring instrument controller controls the temperature-sensing controller in advance; electrifying the electrothermal guide ring; when the visibility of the transparent lens is detected in haze weather, the transparent lens is cleaned in advance through the bionic instant membrane, impurities such as water mist, dust and the like on the surface of the transparent lens are effectively cleaned, the transparency degree of the transparent lens is improved, the optical visual range of a measurement generator and a measurement receiver is effectively ensured, the error value of measurement data is reduced, an aviation station is assisted to make a correct command, economic loss caused by weather is reduced, the accuracy of aviation visibility is further improved through repeated measurement for many times, and the safety of aviation operation is improved.)

1. A scattering type measurement method for visibility in haze weather is characterized by comprising the following steps: the method comprises the following steps:

s1, preparation: a scattering type measuring instrument body (1) capable of carrying out scattering type measurement on the visibility of an aviation environment is arranged at an airport;

s2, preprocessing: when haze weather occurs, the measuring instrument controller (2) controls the temperature-sensing controller (7) in advance;

s3, electrifying the electrothermal guide ring (9): the temperature-sensing controller (7) is started, the temperature-sensing controller (7) is electrified to heat the electrothermal guide ring (9), and the heated electrothermal guide ring (9) controls the traction memory metal wire (10) to generate memory deformation;

s4, primary cleaning: along with the memory deformation of the traction memory metal wire (10), the traction memory metal wire (10) drives the bionic transient membrane (6) to expand, and the transparent lens (5) at the front ends of the measurement generator (3) and the measurement receiver (4) is cleaned for one time;

s5, power-off reset of the electrothermal guide ring (9): when the bionic instant membrane (6) is completely unfolded, the temperature-sensing controller (7) cuts off the power of the electric heating guide ring (9), and the electric heating guide ring (9) is cut off and cooled until the normal temperature state is recovered;

s6, secondary cleaning treatment: along with the power-off cooling of the electric heating guide ring (9), controlling the traction memory metal wire (10) to cool to an initial state, and driving the bionic instantaneous film (6) to contract and return by the traction memory metal wire (10) to perform secondary cleaning treatment on the light-transmitting lens (5);

s7, data storage: after the measuring instrument controller (2) judges that the bionic transient membrane (6) completes a group of actions, the measuring generator (3) is controlled to generate a scattering type light beam, the measuring receiver (4) receives the light beam and transmits data into the measuring instrument controller (2), and the measuring instrument controller (2) stores the measurement data of the visibility;

s8, repeat measurement processing: repeating the steps S3-S7, continuously measuring the visibility, and repeating the measurement at least three times by the measuring instrument controller (2);

s9, visibility value statistical analysis processing: the measuring instrument controller (2) carries out statistical analysis on the visibility values obtained by multiple measurements and transmits the visibility values to managers of the airport terminal.

2. The haze weather visibility scattering type measuring method as claimed in claim 1, wherein: the scattering type measuring instrument comprises a scattering type measuring instrument body (1) and is characterized in that a measuring instrument controller (2) is installed at the lower end of the instrument support, a matched measuring generator (3) and a measuring receiver (4) are installed at the upper end of the instrument support through a rod body, a temperature-sensitive controller (7) electrically connected with the measuring instrument controller (2) is fixedly installed at the upper end of the instrument support, light-transmitting lenses (5) are fixedly connected at one end of the measuring generator (3) and one end of the measuring receiver (4), traction heat insulation grooves are formed in one ends of the measuring generator (3) and the measuring receiver (4), the traction heat insulation grooves are located on the outer sides of the light-transmitting lenses (5), an electric heating guide ring (9) electrically connected with the temperature-sensitive controller (7) is connected in the traction heat insulation grooves, and a traction memory metal wire (10) is wound on the outer sides of the electric heating guide ring (9), the end part of the traction memory metal wire (10) is fixedly connected with a bionic transient membrane (6) matched with the light-transmitting lens (5).

3. The haze weather visibility scattering-type measuring method as claimed in claim 2, wherein: the outer side of the traction memory metal wire (10) is sleeved with a flexible telescopic sheath (1001), and the flexible telescopic sheath (1001) slides in the traction heat insulation groove.

4. The haze weather visibility scattering-type measuring method as claimed in claim 2, wherein: bionic instant membrane (6) intussuseption is filled with a plurality of substrates of absorbing water (601) and floating dust matrix (602), it is oval-shaped to absorb water matrix (601), floating dust matrix (602) is circularly, the diameter of floating dust matrix (602) is 0.2 ~ 0.3 times of the substrate of absorbing water (601) diameter.

5. The haze weather visibility scattering-type measuring method as claimed in claim 4, wherein: the outer wall of the water absorption substrate (601) is uniformly provided with a plurality of enlarged water absorption holes, and the enlarged water absorption holes are matched with the floating dust substrate (602).

6. The haze weather visibility scattering-type measuring method as claimed in claim 2, wherein: a visibility detection system is arranged in the measuring instrument controller (2), the visibility detection system comprises a visibility measurement unit and a bionic cleaning unit, and the visibility measurement unit is electrically connected with the measurement generator (3) and the measurement receiver (4) through leads respectively;

the visibility detection system is used for detecting the environmental visibility;

the visibility measuring unit is used for measuring visibility;

clean unit of bionical formula is used for cleaning in advance light transmission lens (5) that visibility measuring unit belongs to through bionical transient membrane (6), effectively cleans impurity such as water smoke, dust on light transmission lens (5) surface, improves the penetrating degree of light transmission lens (5).

7. The haze weather visibility scattering-type measuring method as claimed in claim 6, wherein: the bionic cleaning unit comprises a temperature rise temperature sensing control module, a periodic temperature rise control module and a data statistics module, wherein an electric control output end of the temperature rise temperature sensing control module is electrically connected with an electric control input end of a temperature sensor controller (7), an input end of the temperature rise temperature sensing control module is connected with an output end of the periodic temperature rise control module, and an output end of the periodic temperature rise control module is connected with an input end of the data statistics module;

the temperature rise and temperature sensing control module is used for controlling a temperature regulation and control unit in the temperature sensing controller (7) to start;

the periodic temperature rise control module is used for controlling the frequency of control actions of the temperature-sensitive controller (7);

the data statistics module is used for counting the times of control actions of the temperature controller (7), and feeding back data to the visibility measurement unit by the data statistics module after detecting that the temperature controller (7) completes one action.

8. The haze weather visibility scattering-type measuring method as claimed in claim 6, wherein: the visibility detection system also comprises an air judgment unit and a reminding warning unit, wherein the input end of the air judgment unit is electrically connected with the gas detector, and the output end of the air judgment unit is connected with the visibility measurement unit;

the air judgment unit is used for prejudging the weather conditions, so that the measuring instrument controller (2) can perform detection actions according to different weather conditions;

the reminding warning unit is used for warning the weather conditions through a warning indicator (8).

9. The haze weather visibility scattering-type measuring method as claimed in claim 8, wherein: the top fixedly connected with attention device (8) of instrument stand, gaseous detector is installed at the top of attention device (8), remind the output and the attention device (8) electric connection of warning unit.

10. The haze weather visibility scattering-type measuring method as claimed in claim 2, wherein: the temperature controller (7) is internally provided with a temperature regulation unit, the temperature regulation unit comprises an electrifying temperature rise module, a temperature sense module and a power-off temperature reduction module, the electric control output ends of the electrifying temperature rise module and the power-off temperature reduction module are electrically connected with the electric control input end of the electric heating guide ring (9), the input end of the temperature sense module is electrically connected with the output end of the electric heating guide ring (9), the electrifying temperature rise module is used for rising the temperature of the electric heating guide ring (9), the temperature sense module is used for checking the temperature rise condition of the electric heating guide ring (9), and the power-off temperature reduction module is used for powering off the electric heating guide ring (9) after judging that the temperature rise reaches a certain value;

the temperature regulation and control unit is used for controlling the electric heating guide ring (9), so that after the electric heating guide ring (9) is heated to the abnormal temperature of the traction memory metal wire (10), the electric heating guide ring (9) is effectively kept constant in temperature for a certain time and is powered off in time, the loss of electric energy is reduced, the action efficiency of the bionic instantaneous membrane (6) is improved, and the traction memory metal wire (10) is effectively prevented from being damaged due to overhigh temperature of the electric heating guide ring (9);

the power-on heating module is used for carrying out heating control on the electric heating guide ring (9);

the temperature sensing module is used for checking the temperature rising condition of the electric heating guide ring (9);

the power-off cooling module is used for powering off the electric heating guide ring (9) after judging that the temperature rises to a certain value, and the electric heating guide ring (9) drives the traction memory metal wire (10) to act, so that the bionic instantaneous film (6) cleans the light-transmitting lens (5).

Technical Field

The invention relates to the field of measurement, in particular to a scattering type measurement method for visibility in haze weather.

Background

Haze, which is a combination word of fog and haze. Haze is common in cities. In China, the fog is merged into the haze to be used as a disaster weather phenomenon for early warning and forecasting, and the phenomenon is called as haze weather. Haze is the result of specific climatic conditions interacting with human activity. Economic and social activities of high-density population inevitably discharge a large amount of fine particulate matters (PM 2.5), once the discharge exceeds the atmospheric circulation capacity and the bearing capacity, the concentration of the fine particulate matters is continuously accumulated, and at the moment, if the influence of calm weather and the like is caused, the haze in a large range is extremely easy to appear.

When haze weather appears, traffic jam and traffic accidents are easily caused due to poor air quality and low visibility. Visibility refers to the maximum horizontal distance that a person with normal vision can see and recognize the outline of an object (black and moderate in size) from the sky background under the current weather condition; the maximum horizontal distance of the luminous point of the light with certain intensity can be seen and determined at night. Units are expressed in meters or kilometers. Visibility is an index for knowing the stability of the atmosphere and the weather of vertical structures, and is a very important factor for protecting the safety of transportation.

At present, an instrument for measuring visibility in the aspect of aviation operation is a scattering type measuring instrument which is widely used in the aviation field due to small volume and high cost performance, the scattering type measuring instrument is an instrument for calculating visibility by measuring atmospheric transparency and mainly comprises a generator, a receiver and a controller, and because the generator and the receiver are generally installed in naked atmosphere, when haze weather occurs, impurities such as water mist, dust and the like in the air can be adhered to the surfaces of the generator and the receiver in advance to influence the optical visual range of the generator and the receiver, so that the error value of measured data is improved, an airport is easy to make wrong instructions, and economic loss is caused. Therefore, a scattering type measuring method for visibility in haze weather is provided.

Disclosure of Invention

The invention aims to provide a scattering type measurement method for visibility in haze weather, which aims to solve the problems in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme: a scattering type measurement method for visibility in haze weather comprises the following steps:

s1, preparation: a scattering type measuring instrument body capable of carrying out scattering type measurement on the visibility of an aviation environment is arranged at an airport;

s2, preprocessing: when haze weather occurs, the measuring instrument controller controls the temperature-sensing controller in advance;

s3, electrifying the electrothermal guide ring: the temperature-sensing controller is started, the temperature-sensing controller is used for electrifying the electric heating guide ring to heat up, and the heated electric heating guide ring controls the traction memory metal wire to generate memory deformation;

s4, primary cleaning: along with the memory deformation of the traction memory metal wire, the traction memory metal wire drives the bionic instantaneous membrane to expand, and the transparent lenses at the front ends of the measurement generator and the measurement receiver are cleaned for one time;

s5, power-off reset of the electric heating guide ring: when the bionic instant membrane is completely unfolded, the temperature-sensing controller cuts off the power of the electric heating guide ring, and the electric heating guide ring cuts off the power and cools the electric heating guide ring until the normal temperature state is recovered;

s6, secondary cleaning treatment: controlling the traction memory metal wire to cool to an initial state along with the power-off cooling of the electric heating guide ring, and driving the bionic instant membrane to contract and return by the traction memory metal wire to perform secondary cleaning treatment on the light-transmitting lens;

s7, data storage: the measuring instrument controller judges that the bionic transient membrane completes a group of actions, then controls the measuring generator to generate a scattering type light beam, the measuring receiver receives the light beam and transmits data into the measuring instrument controller, and the measuring instrument controller stores the visibility measuring data;

s8, repeat measurement processing: repeating the steps S3-S7, continuously measuring the visibility, and repeatedly measuring at least three times by the measuring instrument controller;

s9, visibility value statistical analysis processing: and the measuring instrument controller carries out statistical analysis on the visibility values obtained by multiple measurements and transmits the visibility values to managers of the airport terminal.

Preferably, the scatterometry body comprises an instrument support, a surveying instrument controller is installed at the lower end of the instrument support, the upper end of the instrument bracket is provided with a measuring generator and a measuring receiver which are matched with each other through a rod body, the upper end of the instrument bracket is also fixedly provided with a temperature-sensing controller which is electrically connected with the controller of the measuring instrument, one end of the measuring generator and one end of the measuring receiver are both fixedly connected with light-transmitting lenses, one ends of the measuring generator and the measuring receiver are both provided with a traction heat insulation groove, the traction heat insulation groove is positioned at the outer side of the transparent lens, an electric heating guide ring electrically connected with the temperature-sensing controller is connected in the traction heat insulation groove, the outer side of the electric heating guide ring is wound with a traction memory metal wire, and the end part of the traction memory metal wire is fixedly connected with a bionic transient membrane matched with the light-transmitting lens.

Preferably, a flexible telescopic sheath is sleeved on the outer side of the traction memory metal wire, and the flexible telescopic sheath slides in the traction heat insulation groove.

Preferably, the bionic instant membrane is filled with a plurality of water absorption substrates and floating dust substrates, the water absorption substrates are elliptical, the floating dust substrates are circular, and the diameter of the floating dust substrates is 0.2-0.3 times of that of the water absorption substrates.

Preferably, the outer wall of the water absorption substrate is uniformly provided with a plurality of enlarged water absorption holes, and the enlarged water absorption holes are matched with the floating dust substrate.

Preferably, a visibility detection system is arranged in the measuring instrument controller, the visibility detection system comprises a visibility measurement unit and a bionic cleaning unit, and the visibility measurement unit is electrically connected with the measurement generator and the measurement receiver through wires respectively;

the visibility detection system is used for detecting the environmental visibility;

the visibility measuring unit is used for measuring visibility;

the clean unit of bionical formula is used for cleaning in advance the printing opacity lens that visibility measuring element belongs to through bionical transient membrane, effectively cleans impurity such as water smoke, dust on printing opacity lens surface, improves the penetrating degree of printing opacity lens.

Preferably, the bionic cleaning unit comprises a temperature rise temperature sensing control module, a periodic temperature rise control module and a data statistics module, wherein an electric control output end of the temperature rise temperature sensing control module is electrically connected with an electric control input end of a temperature sensor controller, an input end of the temperature rise temperature sensing control module is connected with an output end of the periodic temperature rise control module, and an output end of the periodic temperature rise control module is connected with an input end of the data statistics module;

the temperature rise and temperature sensing control module is used for controlling a temperature regulation and control unit in the temperature sensing controller to start;

the periodic temperature rise control module is used for controlling the frequency of the control action of the temperature-sensing controller;

the data statistics module is used for counting the times of the control action of the temperature controller, and feeding back data to the visibility measurement unit by the data statistics module after detecting that the temperature controller completes one action.

Preferably, the visibility detection system further comprises an air judgment unit and a warning unit, wherein the input end of the air judgment unit is electrically connected with the gas detector, and the output end of the air judgment unit is connected with the visibility measurement unit;

the air judgment unit is used for prejudging the weather conditions, so that the measuring instrument controller can perform detection actions according to different weather conditions;

the reminding warning unit is used for warning the weather conditions through the warning device.

Preferably, the top end of the instrument support is fixedly connected with an alarm, the top of the alarm is provided with a gas detector, and the output end of the reminding alarm unit is electrically connected with the alarm.

Preferably, a temperature regulation unit is arranged in the temperature-sensing controller, the temperature regulation unit comprises an energization heating module, a temperature-sensing module and a power-off cooling module, the electrical control output ends of the energization heating module and the power-off cooling module are electrically connected with the electrical control input end of the electrothermal guide ring, the input end of the temperature-sensing module is electrically connected with the output end of the electrothermal guide ring, the energization heating module heats the electrothermal guide ring, the temperature-sensing module checks the heating condition of the electrothermal guide ring, and the power-off cooling module powers off the electrothermal guide ring after judging that the heating reaches a certain value;

the temperature regulation and control unit is used for controlling the electric heating guide ring, so that after the electric heating guide ring is heated to the abnormal temperature of the traction memory metal wire, the electric heating guide ring can be kept constant in temperature for a certain time and can be powered off in time, the loss of electric energy is reduced, the efficiency of the bionic transient membrane action is improved, and the damage to the traction memory metal wire caused by overhigh temperature of the electric heating guide ring is effectively avoided;

the power-on heating module is used for carrying out heating control on the electric heating guide ring;

the temperature sensing module is used for checking the temperature rising condition of the electric heating guide ring;

the power-off cooling module is used for powering off the electric heating guide ring after judging that the temperature rises to a certain value, and the electric heating guide ring drives the traction memory metal wire to act, so that the bionic transient film cleans the light-transmitting lens.

Compared with the prior art, the invention has the beneficial effects that:

1. when the visibility is detected in haze weather, the light-transmitting lens is cleaned in advance through the bionic instant membrane, so that impurities such as water mist, dust and the like on the surface of the light-transmitting lens are effectively cleaned, the permeability of the light-transmitting lens is improved, the optical visual range of a measurement generator and a measurement receiver is effectively ensured, the error value of measurement data is reduced, an aviation station is assisted to make a correct instruction, economic loss caused by weather is reduced, the accuracy of aviation visibility is further improved through repeated measurement for many times, and the safety of aviation operation is improved;

2. the bionic transient membrane is drawn by the drawing memory metal wire, so that the bionic transient membrane can act by imitating the transient membrane of a vertebrate, the surface of the light-transmitting lens is cleaned, the permeability of the light-transmitting lens is effectively ensured, the light-transmitting error caused by dirtying of the surface of the light-transmitting lens is reduced, the step of manually wiping the light-transmitting lens is effectively omitted, the danger caused by climbing operation is reduced, the investment of labor cost is reduced, the damage to a measurement generator and a measurement receiver caused by manpower is reduced, and the service life of the scattering type measuring instrument body is prolonged;

3. the flexible telescopic sheath wraps the traction memory metal wire, and limits the traction memory metal wire when the traction memory metal wire generates temperature-sensing memory deformation, so that the traction memory metal wire is effectively prevented from scratching the light-transmitting lens to influence the normal use of the light-transmitting lens, and the effective flexible telescopic sheath can effectively protect the traction memory metal wire and reduce the abrasion loss generated by the traction memory metal wire;

4. the water absorption substrate can effectively absorb water mist generated on the end face of the light-transmitting lens, the floating dust substrate can effectively adsorb impurities such as dust and the like adhered to the end face of the light-transmitting lens, the light-transmitting lens is cleaned in a classified manner, the cleaning efficiency and the cleaning effect are improved, and residual cleaning traces on the end face of the light-transmitting lens are reduced;

5. the water absorption substrate is enlarged after absorbing water, when the bionic instant membrane is shrunk and stacked, the water absorption substrate can wrap the floating dust substrate under the action of extrusion force, so that the floating dust substrate with adsorbed dust is wrapped inside the water absorption substrate, the damage of the floating dust substrate to the light-transmitting lens during later cleaning is reduced, the water absorption substrate can be effectively recycled, and the service life of the bionic instant membrane is prolonged;

6. according to the invention, the visibility detection system is used for automatically controlling the measurement process, so that the accuracy of the measured value is effectively ensured, the timeliness and the validity of the measured data are effectively improved, aviation management personnel can timely detect weather changes conveniently, aviation operation is controlled and adjusted in real time, and the influence caused by the weather changes is reduced to the maximum extent;

7. the bionic cleaning unit periodically controls the action of the temperature-sensing controller, so that the temperature-sensing controller can conveniently control the bionic transient membrane to imitate the transient membrane action of vertebrates, the transparent lens is cleaned and maintained, the action control accuracy is improved, the bionic cleaning unit is effectively matched with the visibility measuring unit, and the visibility measuring error is reduced;

8. the temperature control unit can effectively control the electric heating guide ring, so that the electric heating guide ring can effectively keep constant temperature for a certain time and timely power off after being heated to the abnormal temperature of the traction memory metal wire, the loss of electric energy is reduced, the efficiency of bionic transient membrane action is improved, and the damage to the traction memory metal wire caused by overhigh temperature of the electric heating guide ring is effectively avoided;

9. the warning device can send warning signals in time when the visibility is low, warn the tower staff and the flight staff, effectively assist the transmission signals of the data of the measuring instrument controller, improve the response efficiency of aviation management and further improve the safety of aviation;

10. according to the invention, the weather conditions are pre-judged through the air judgment unit, so that the measuring instrument controller can perform detection actions according to different weather conditions, and when the weather conditions are better, simple measurement is adopted, so that the measuring efficiency is improved, and the adaptability and the practicability of the scattering type measuring instrument body are improved.

Drawings

FIG. 1 is a schematic view of the flow structure of the measurement method of the present invention;

FIG. 2 is a schematic view of the axial structure of the scatterometer according to the present invention;

FIG. 3 is a partially enlarged view of the traction memory wire according to the present invention;

FIG. 4 is a schematic view of the structure of the internal medium of the biomimetic instant membrane of the present invention;

FIG. 5 is a schematic structural view of the state of the water-absorbing substrate wrapping the floating dust substrate of the present invention;

FIG. 6 is a schematic diagram of a frame structure of a visibility detection system according to the present invention;

FIG. 7 is a schematic view of the structure of the bionic instant membrane action control flow of the present invention;

FIG. 8 is a schematic diagram of a bionic instant membrane axial measurement structure according to the present invention;

FIG. 9 is a schematic diagram of an explosion configuration of the instant biomimetic membrane of the present invention as it contracts;

FIG. 10 is a schematic diagram of the explosion structure of the instant membrane of the present invention during deployment.

In the figure: 1. a scatterometry body; 2. a gauge controller; 3. a measurement generator; 4. a measurement receiver; 5. a light-transmitting lens; 6. a bionic instant membrane; 601. a water-absorbent matrix; 602. a dust-laden substrate; 7. a temperature-sensitive controller; 8. an alarm; 9. an electrothermal guide ring; 10. drawing a memory wire; 1001. a flexible telescopic sheath.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example 1

Referring to fig. 1-10, the present invention provides a technical solution: a scattering type measurement method for visibility in haze weather comprises the following steps:

s1, preparation: a scattering type measuring instrument body 1 capable of carrying out scattering type measurement on visibility of an aviation environment is arranged at an airport;

s2, preprocessing: when haze weather occurs, the measuring instrument controller 2 controls the temperature-sensing controller 7 in advance;

s3, electrifying the electrothermal guide ring 9: the temperature-sensing controller 7 is started, the temperature-sensing controller 7 is electrified to heat the electrothermal guide ring 9, and the heated electrothermal guide ring 9 controls the traction memory metal wire 10 to generate memory deformation;

s4, primary cleaning: along with the memory deformation of the traction memory metal wire 10, the traction memory metal wire 10 drives the bionic instantaneous membrane 6 to expand, and the transparent lens 5 at the front ends of the measurement generator 3 and the measurement receiver 4 is cleaned for one time;

s5, power-off reset of the electrothermal guide ring 9: when the bionic instant membrane 6 is completely unfolded, the temperature-sensing controller 7 cuts off the power of the electric heating guide ring 9, and the electric heating guide ring 9 is cut off and cooled until the normal temperature state is recovered;

s6, secondary cleaning treatment: with the power-off cooling of the electric heating guide ring 9, controlling the traction memory metal wire 10 to cool to an initial state, and driving the bionic transient membrane 6 to contract and return by the traction memory metal wire 10 to carry out secondary cleaning treatment on the light-transmitting lens 5;

s7, data storage: the measuring instrument controller 2 judges that the bionic transient membrane 6 finishes a group of actions, then controls the measuring generator 3 to generate a scattering type light beam, the measuring receiver 4 receives the light beam and transmits data into the measuring instrument controller 2, and the measuring instrument controller 2 stores the visibility measuring data;

s8, repeat measurement processing: repeating the steps S3-S7, continuously measuring the visibility, and repeating the measurement by the measuring instrument controller 2 at least three times;

s9, visibility value statistical analysis processing: the measuring instrument controller 2 performs statistical analysis on the visibility values obtained through multiple measurements and transmits the visibility values to managers of the airport terminal. Scattering formula measuring apparatu body 1 is when haze weather detects visibility, clean in advance printing opacity lens 5 through bionical transient membrane 6, effectively clean the water smoke on 5 surfaces of printing opacity lens, impurities such as dust, improve the penetrating degree of printing opacity lens 5, effectively guarantee to measure the optics journey of generator 3 and measurement receiver 4, reduce measured data's error value, supplementary airport makes the correct instruction, reduce the economic loss because the weather causes, and through repeated measurement many times, further improve aviation visibility's the degree of accuracy, improve the security of aviation operation.

Scattering formula measuring apparatu body 1 is including the instrument support, measuring apparatu controller 2 is installed to instrument support lower extreme, assorted measurement generator 3 and measurement receiver 4 are installed through the body of rod to instrument support upper end, still fixed mounting has temperature-sensing controller 7 with 2 electric connection of measuring apparatu controller in the instrument support upper end, the one end of measuring generator 3 and the equal fixedly connected with printing opacity lens 5 of measurement receiver 4 one end, it draws the heat-insulating bath all to have seted up with measurement receiver 4 one end to measure generator 3, it is located the outside of printing opacity lens 5 to draw the heat-insulating bath, it has the electric heat guide ring 9 with 7 electric connection of temperature-sensing controller to draw the heat-insulating bath in-connection, the outside wire-wound of electric heat guide ring 9 has the memory wire 10 that draws, draw memory wire 10 tip fixedly connected with and the bionical membrane 6 of printing opacity lens 5 assorted transient. Draw bionical transient membrane 6 through drawing memory wire 10, make bionical transient membrane 6 can imitate vertebrate's transient membrane and move, clean the surface of printing opacity lens 5, effectively guarantee the permeability of printing opacity lens 5, reduce because the printing opacity error of 5 surperficial dirtier productions in printing opacity lens, and effectively save the manual work and clean the step of printing opacity lens 5, reduce the danger that the operation of ascending a height produced, reduce the input of cost of labor, reduce the artifical damage that causes measuring generator 3 and measurement receiver 4, improve the life of scattering formula measuring apparatu body 1.

A flexible telescopic sheath 1001 is sleeved outside the traction memory metal wire 10, and the flexible telescopic sheath 1001 slides in the traction heat insulation groove. Flexible sheath 1001 wraps up traction memory wire 10, makes traction memory wire 10 carry on spacingly when producing temperature sensing memory deformation, effectively avoids traction memory wire 10 to cause the fish tail to printing opacity lens 5, influences printing opacity lens 5's normal use to effective flexible sheath 1001 can effectively protect traction memory wire 10, reduces the wearing and tearing volume that traction memory wire 10 produced.

The bionic instant membrane 6 is filled with a plurality of water absorption substrates 601 and floating dust substrates 602, the water absorption substrates 601 are elliptical, the floating dust substrates 602 are circular, and the diameter of the floating dust substrates 602 is 0.2-0.3 times of that of the water absorption substrates 601. The water absorption substrate 601 can effectively absorb the water mist generated on the end face of the light-transmitting lens 5, the floating dust substrate 602 can effectively adsorb impurities such as dust adhered to the end face of the light-transmitting lens 5, the light-transmitting lens 5 is cleaned in different categories, the cleaning efficiency and the cleaning effect are improved, and the residual cleaning trace on the end face of the light-transmitting lens 5 is reduced.

The outer wall of the water absorption substrate 601 is uniformly provided with a plurality of enlarged water absorption holes, and the enlarged water absorption holes are matched with the floating dust substrate 602. The matrix 601 that absorbs water increases after absorbing moisture content, when bionical transient membrane 6 produces the shrink and piles up, the matrix 601 that absorbs water receives the crushing effort to wrap up floating dust matrix 602, makes the floating dust matrix 602 that adsorbs to have the dust wrap up to the matrix 601 that absorbs water inside, floating dust matrix 602 is to the damage of printing opacity lens 5 when reducing the later stage cleanness to can effective recycling, improve the life of bionical transient membrane 6.

A visibility detection system is arranged in the measuring instrument controller 2 and comprises a visibility measuring unit and a bionic cleaning unit, and the visibility measuring unit is electrically connected with the measuring generator 3 and the measuring receiver 4 through leads respectively; the visibility detection system is used for detecting the environmental visibility; the visibility measuring unit is used for measuring visibility; the bionic cleaning unit is used for cleaning the light-transmitting lens 5 to which the visibility measuring unit belongs in advance through the bionic transient film 6, effectively cleaning impurities such as water mist, dust and the like on the surface of the light-transmitting lens 5, and improving the permeability of the light-transmitting lens 5. The visibility detection system is used for automatically controlling the measurement process, so that the accuracy of the measured value is effectively guaranteed, the timely validity of the measured data is effectively improved, aviation management personnel can timely detect weather changes conveniently, aviation operation is controlled and adjusted in real time, and the influence caused by the weather changes is reduced to the maximum extent.

The bionic cleaning unit comprises a temperature rise temperature sensing control module, a periodic temperature rise control module and a data statistics module, wherein an electric control output end of the temperature rise temperature sensing control module is electrically connected with an electric control input end of a temperature sensor controller 7, an input end of the temperature rise temperature sensing control module is connected with an output end of the periodic temperature rise control module, and an output end of the periodic temperature rise control module is connected with an input end of the data statistics module; the temperature rise and temperature sensing control module is used for controlling the temperature regulation and control unit in the temperature sensing controller 7 to start; the periodic temperature rise control module is used for controlling the times of control actions of the temperature-sensitive controller 7; the data statistics module is used for counting the times of control actions of the temperature controller 7, and feeding back data to the visibility measurement unit by the data statistics module after detecting that the temperature controller 7 completes one action. The clean unit of bionical formula carries out periodic control to temperature controller 7's action, and the bionic nictitating membrane 6 of temperature controller 7 control of being convenient for imitates vertebrate's nictitating membrane action, cleans the maintenance to printing opacity lens 5, improves action control's accuracy to effectively cooperate with visibility measuring element, reduce visibility measuring error.

The visibility detection system also comprises an air judgment unit and a reminding warning unit, wherein the input end of the air judgment unit is electrically connected with the gas detector, and the output end of the air judgment unit is connected with the visibility measurement unit; the air judgment unit is used for prejudging the weather conditions, so that the measuring instrument controller 2 can perform detection actions according to different weather conditions; the reminding warning unit is used for warning the weather condition through the warning indicator 8. Weather conditions are judged in advance through the air judgment unit, so that the measuring instrument controller 2 can make detection actions according to different weather conditions, when the weather conditions are better, simple measurement is adopted, the measuring efficiency is improved, and the adaptability and the practicability of the scattering type measuring instrument body 1 are improved.

The top fixedly connected with attention device 8 of instrument stand, gaseous detector is installed at the top of attention device 8, reminds warning unit's output and 8 electric connection of attention device. The warning indicator 8 can timely send out warning signals when the visibility is low, and warn the tower staff and the flight staff, so that the data transmission signals of the measuring instrument controller 2 are effectively assisted, the reaction efficiency of aviation management is improved, and the safety of aviation is further improved.

A temperature regulation and control unit is arranged in the temperature-sensing controller 7 and comprises a power-on temperature-rising module, a temperature-sensing module and a power-off temperature-reducing module, the electric control output ends of the power-on temperature-rising module and the power-off temperature-reducing module are electrically connected with the electric control input end of the electric heating guide ring 9, the input end of the temperature-sensing module is electrically connected with the output end of the electric heating guide ring 9, the power-on temperature-rising module is used for rising the temperature of the electric heating guide ring 9, the temperature-sensing module is used for checking the temperature rising condition of the electric heating guide ring 9, the power-off temperature-reducing module is used for powering off the electric heating guide ring 9 after judging that the temperature rises to a certain value; the temperature regulation and control unit is used for controlling the electric heating guide ring 9, so that after the electric heating guide ring 9 is heated to the abnormal temperature of the traction memory metal wire 10, the electric heating guide ring 9 is effectively kept constant in temperature for a certain time and is powered off in time, the loss of electric energy is reduced, the action efficiency of the bionic transient membrane 6 is improved, and the damage to the traction memory metal wire 10 caused by overhigh temperature of the electric heating guide ring 9 is effectively avoided; the power-on heating module is used for carrying out heating control on the electric heating guide ring 9; the temperature sensing module is used for checking the temperature rising condition of the electric heating guide ring 9; the power-off cooling module is used for powering off the electric heating guide ring 9 after judging that the temperature rises to a certain value, and the electric heating guide ring 9 drives the traction memory metal wire 10 to act, so that the bionic transient membrane 6 cleans the light-transmitting lens 5. The temperature regulation and control unit can effectively control the electric heating guide ring 9, so that the electric heating guide ring 9 can effectively keep the electric heating guide ring 9 constant temperature for a certain time and timely power off after being heated to the abnormal temperature of the traction memory metal wire 10, the loss of electric energy is reduced, the efficiency of the action of the bionic transient membrane 6 is improved, and the damage to the traction memory metal wire 10 caused by the overhigh temperature of the electric heating guide ring 9 is effectively avoided.

Example 2

Referring to fig. 1 to 10, a scattering measurement method for visibility in haze weather includes the following steps:

s1, preparation: a scattering type measuring instrument body 1 capable of carrying out scattering type measurement on visibility of an aviation environment is arranged at an airport;

s2, preprocessing: when haze weather occurs, the measuring instrument controller 2 controls the temperature-sensing controller 7 in advance;

s3, electrifying the electrothermal guide ring 9: the temperature-sensing controller 7 is started, the temperature-sensing controller 7 is electrified to heat the electrothermal guide ring 9, and the heated electrothermal guide ring 9 controls the traction memory metal wire 10 to generate memory deformation;

s4, primary cleaning: along with the memory deformation of the traction memory metal wire 10, the traction memory metal wire 10 drives the bionic instantaneous membrane 6 to expand, and the transparent lens 5 at the front ends of the measurement generator 3 and the measurement receiver 4 is cleaned for one time;

s5, power-off reset of the electrothermal guide ring 9: when the bionic instant membrane 6 is completely unfolded, the temperature-sensing controller 7 cuts off the power of the electric heating guide ring 9, and the electric heating guide ring 9 is cut off and cooled until the normal temperature state is recovered;

s6, secondary cleaning treatment: with the power-off cooling of the electric heating guide ring 9, controlling the traction memory metal wire 10 to cool to an initial state, and driving the bionic transient membrane 6 to contract and return by the traction memory metal wire 10 to carry out secondary cleaning treatment on the light-transmitting lens 5;

s7, data storage: the measuring instrument controller 2 judges that the bionic transient membrane 6 finishes a group of actions, then controls the measuring generator 3 to generate a scattering type light beam, the measuring receiver 4 receives the light beam and transmits data into the measuring instrument controller 2, and the measuring instrument controller 2 stores the visibility measuring data;

s8, repeat measurement processing: repeating the steps S3-S7, continuously measuring the visibility, and repeating the measurement by the measuring instrument controller 2 at least three times;

s9, visibility value statistical analysis processing: the measuring instrument controller 2 performs statistical analysis on the visibility values obtained through multiple measurements and transmits the visibility values to managers of the airport terminal. Scattering formula measuring apparatu body 1 is when haze weather detects visibility, clean in advance printing opacity lens 5 through bionical transient membrane 6, effectively clean the water smoke on 5 surfaces of printing opacity lens, impurities such as dust, improve the penetrating degree of printing opacity lens 5, effectively guarantee to measure the optics journey of generator 3 and measurement receiver 4, reduce measured data's error value, supplementary airport makes the correct instruction, reduce the economic loss because the weather causes, and through repeated measurement many times, further improve aviation visibility's the degree of accuracy, improve the security of aviation operation.

Example 3

Referring to fig. 1 to 10, the embodiment 3 is different from the embodiment 1 in that: referring to fig. 2 and 8-10, the scattering measurement instrument body 1 includes an instrument support, a measurement instrument controller 2 is fixedly mounted at the lower end of the instrument support, a measurement generator 3 and a measurement receiver 4 which are matched are fixedly mounted at the upper end of the instrument support, a temperature-sensing controller 7 electrically connected with the measurement instrument controller 2 is also fixedly mounted at the upper end of the instrument support, transparent lenses 5 are fixedly connected at one ends of the measurement generator 3 and the measurement receiver 4, a circle of traction heat insulation groove is formed at one end of the measurement generator 3 and one end of the measurement receiver 4 which are located at the outer sides of the transparent lenses 5, an electrothermal guide ring 9 electrically connected with the temperature-sensing controller 7 is connected in the traction heat insulation groove, a traction memory wire 10 is sleeved at the outer end of the electrothermal guide ring 9, and the end of the traction memory wire 10 is fixedly connected with a bionic transient film 6 matched with the transparent lenses 5. Draw bionical transient membrane 6 through drawing memory wire 10, make bionical transient membrane 6 can imitate vertebrate's transient membrane and move, clean the surface of printing opacity lens 5, effectively guarantee the permeability of printing opacity lens 5, reduce because the printing opacity error of 5 surperficial dirtier productions in printing opacity lens, and effectively save the manual work and clean the step of printing opacity lens 5, reduce the danger that the operation of ascending a height produced, reduce the input of cost of labor, reduce the artifical damage that causes measuring generator 3 and measurement receiver 4, improve the life of scattering formula measuring apparatu body 1.

Referring to fig. 3, a flexible telescopic sheath 1001 is sleeved on the outer end of the traction memory metal wire 10, and the flexible telescopic sheath 1001 is slidably connected with the traction heat insulation groove. Flexible sheath 1001 wraps up traction memory wire 10, makes traction memory wire 10 carry on spacingly when producing temperature sensing memory deformation, effectively avoids traction memory wire 10 to cause the fish tail to printing opacity lens 5, influences printing opacity lens 5's normal use to effective flexible sheath 1001 can effectively protect traction memory wire 10, reduces the wearing and tearing volume that traction memory wire 10 produced.

Referring to fig. 4, the bionic instant membrane 6 includes a plurality of water-absorbing substrates 601 and floating dust substrates 602 arranged randomly, the water-absorbing substrates 601 are elliptical, the floating dust substrates 602 are circular, and the diameter of the floating dust substrates 602 is 0.2-0.3 times the diameter of the minor axis of the water-absorbing substrates 601. The water absorption substrate 601 can effectively absorb the water mist generated on the end face of the light-transmitting lens 5, the floating dust substrate 602 can effectively adsorb impurities such as dust adhered to the end face of the light-transmitting lens 5, the light-transmitting lens 5 is cleaned in different categories, the cleaning efficiency and the cleaning effect are improved, and the residual cleaning trace on the end face of the light-transmitting lens 5 is reduced.

Referring to fig. 5, the outer wall of the water absorbing substrate 601 is arranged with uniformly distributed enlarged water absorbing holes, and the enlarged water absorbing holes are matched with the floating dust substrate 602. The matrix 601 that absorbs water increases after absorbing moisture content, when bionical transient membrane 6 produces the shrink and piles up, the matrix 601 that absorbs water receives the crushing effort to wrap up floating dust matrix 602, makes the floating dust matrix 602 that adsorbs to have the dust wrap up to the matrix 601 that absorbs water inside, floating dust matrix 602 is to the damage of printing opacity lens 5 when reducing the later stage cleanness to can effective recycling, improve the life of bionical transient membrane 6.

Referring to fig. 2, the instrument holder is fixedly connected to the upper ends of the measurement generator 3 and the measurement receiver 4, and the upper end of the alarm 8 is fixedly connected to the gas detector. The warning indicator 8 can timely send out warning signals when the visibility is low, and warn the tower staff and the flight staff, so that the data transmission signals of the measuring instrument controller 2 are effectively assisted, the reaction efficiency of aviation management is improved, and the safety of aviation is further improved.

Referring to fig. 1-10, the method of use: when haze weather occurs, the measuring instrument controller 2 controls the temperature-sensing controller 7 to be controlled in advance, the temperature-sensing controller 7 needs to control the electric heating guide ring 9 to be electrified, so that the temperature of the electric heating guide ring 9 is raised, when the temperature reaches the transformation temperature of the traction memory metal wire 10, the traction memory metal wire 10 generates memory deformation, the traction memory metal wire 10 generates deformation along the outline of the electric heating guide ring 9, the flexible telescopic sheath 1001 protects the traction memory metal wire 10 and acts together with the traction memory metal wire 10, the traction memory metal wire 10 drives the bionic instantaneous film 6 to gradually expand and please refer to 10, the surface of the light-transmitting lens 5 is cleaned by absorbing water and absorbing dust through the water absorbing substrate 601 and the floating dust substrate 602, the power is cut off after the temperature-sensing controller 7 judges that the bionic instantaneous film 6 is expanded, so that the electric heating guide ring 9 does not generate heat and gradually recovers to normal temperature, the traction memory metal wire 10 is subjected to temperature influence to generate recovery deformation and drive the bionic transient membrane 6 to be gradually folded and retracted;

please refer to fig. 9, the bionic instant membrane 6 cleans the transparent lens 5 again in the recycling process, and is affected by the folding force, the floating dust matrix 602 with dust is wrapped by the water absorbing matrix 601 absorbing water, so as to reduce the damage to the transparent lens 5 caused by the floating dust matrix 602 with dust in the later use, the bionic instant membrane 6 completes the action of the instant membrane imitating the vertebrate under the driving of the traction memory metal wire 10, the guiding of the electrothermal guide ring 9 and the control of the temperature-sensitive controller 7, and completes the quick cleaning of the transparent lens 5, thereby effectively ensuring the permeability of the transparent lens 5, and reducing the error generated by the visibility measurement.

Example 4

Referring to fig. 1 to 10, wherein the same or corresponding components as those in embodiment 1 are designated by the same reference numerals as those in embodiment 1, only the points different from embodiment 1 will be described below for the sake of convenience. This example 4 differs from example 1 in that: referring to fig. 6, a visibility detection system is disposed in the measuring instrument controller 2, and the visibility detection system includes a visibility measurement unit and a bionic cleaning unit, and the visibility measurement unit is electrically connected to the measurement generator 3 and the measurement receiver 4 through wires; the visibility detection system is used for detecting the environmental visibility; the visibility measuring unit is used for measuring visibility; the bionic cleaning unit is used for cleaning the light-transmitting lens 5 to which the visibility measuring unit belongs in advance through the bionic transient film 6, effectively cleaning impurities such as water mist, dust and the like on the surface of the light-transmitting lens 5, and improving the permeability of the light-transmitting lens 5. The visibility detection system is used for automatically controlling the measurement process, so that the accuracy of the measured value is effectively guaranteed, the timely validity of the measured data is effectively improved, aviation management personnel can timely detect weather changes conveniently, aviation operation is controlled and adjusted in real time, and the influence caused by the weather changes is reduced to the maximum extent.

Referring to fig. 6, the bionic cleaning unit includes a temperature-raising temperature-sensing control module, a periodic temperature-raising control module and a data statistics module, wherein an electrical control output end of the temperature-raising temperature-sensing control module is electrically connected to an electrical control input end of the temperature-sensing controller 7, an input end of the temperature-raising temperature-sensing control module is connected to an output end of the periodic temperature-raising control module, and an output end of the periodic temperature-raising control module is connected to an input end of the data statistics module; the temperature rise and temperature sensing control module is used for controlling the temperature regulation and control unit in the temperature sensing controller 7 to start; the periodic temperature rise control module is used for controlling the times of control actions of the temperature-sensitive controller 7; the data statistics module is used for counting the times of control actions of the temperature controller 7, and feeding back data to the visibility measurement unit by the data statistics module after detecting that the temperature controller 7 completes one action. The clean unit of bionical formula carries out periodic control to temperature controller 7's action, and the bionic nictitating membrane 6 of temperature controller 7 control of being convenient for imitates vertebrate's nictitating membrane action, cleans the maintenance to printing opacity lens 5, improves action control's accuracy to effectively cooperate with visibility measuring element, reduce visibility measuring error.

Referring to fig. 6, a temperature regulation unit is arranged in the temperature-sensing controller 7, and the temperature regulation unit includes an energization heating module, a temperature-sensing module and a power-off cooling module, the electrical control output ends of the energization heating module and the power-off cooling module are electrically connected to the electrical control input end of the electrothermal guide ring 9, the input end of the temperature-sensing module is electrically connected to the output end of the electrothermal guide ring 9, the energization heating module heats the electrothermal guide ring 9, the temperature-sensing module checks the heating condition of the electrothermal guide ring 9, and the power-off cooling module powers off the electrothermal guide ring 9 after judging that the heating reaches a certain value; the temperature regulation and control unit is used for controlling the electric heating guide ring 9, so that after the electric heating guide ring 9 is heated to the abnormal temperature of the traction memory metal wire 10, the electric heating guide ring 9 is effectively kept constant in temperature for a certain time and is powered off in time, the loss of electric energy is reduced, the action efficiency of the bionic transient membrane 6 is improved, and the damage to the traction memory metal wire 10 caused by overhigh temperature of the electric heating guide ring 9 is effectively avoided; the power-on heating module is used for carrying out heating control on the electric heating guide ring 9; the temperature sensing module is used for checking the temperature rising condition of the electric heating guide ring 9; the power-off cooling module is used for powering off the electric heating guide ring 9 after judging that the temperature rises to a certain value, and the electric heating guide ring 9 drives the traction memory metal wire 10 to act, so that the bionic transient membrane 6 cleans the light-transmitting lens 5. The temperature regulation and control unit can effectively control the electric heating guide ring 9, so that the electric heating guide ring 9 can effectively keep the electric heating guide ring 9 constant temperature for a certain time and timely power off after being heated to the abnormal temperature of the traction memory metal wire 10, the loss of electric energy is reduced, the efficiency of the action of the bionic transient membrane 6 is improved, and the damage to the traction memory metal wire 10 caused by the overhigh temperature of the electric heating guide ring 9 is effectively avoided.

Referring to fig. 6, the visibility detection system further includes an air judgment unit and a warning unit, wherein an input end of the air judgment unit is electrically connected to the gas detector, and an output end of the air judgment unit is connected to the visibility measurement unit; the air judgment unit is used for prejudging the weather conditions, so that the measuring instrument controller 2 can perform detection actions according to different weather conditions; the reminding warning unit is used for warning the weather condition through the warning indicator 8. Weather conditions are judged in advance through the air judgment unit, so that the measuring instrument controller 2 can make detection actions according to different weather conditions, when the weather conditions are better, simple measurement is adopted, the measuring efficiency is improved, and the adaptability and the practicability of the scattering type measuring instrument body 1 are improved.

Referring to fig. 1-10, the control method: the gas detector transmits detection data of the external air to the air judgment unit, the air judgment unit judges the type of the external air at the moment, and when the external air is judged to be normal weather, the air judgment unit transmits the data to the visibility measurement unit, and the visibility detection unit controls the measurement generator 3 and the measurement receiver 4 to measure the visibility; when the air judging unit judges that the external air is in haze weather, the data is transmitted to the visibility measuring unit and the reminding warning unit, the reminding warning unit warns the weather condition through the warning indicator 8, the visibility measuring unit controls the bionic cleaning unit to start, the temperature rising and temperature sensing control module controls the temperature regulating unit in the temperature sensing controller 7 to start, the power-on temperature rising module raises the temperature of the electric heating guide ring 9, the temperature sensing module checks the temperature rising condition of the electric heating guide ring 9, the power-off temperature lowering module cuts off the power of the electric heating guide ring 9 after judging that the temperature rises to a certain value, the electric heating guide ring 9 drives the traction memory metal wire 10 to act, the bionic instantaneous film 6 cleans the transparent lens 5, the periodic temperature rising control module and the data statistics module control and count the times of the control action of the temperature sensing controller 7, and after one action is completed, the data statistics module feeds back data to the visibility measuring unit, the visibility detecting unit controls the measuring generator 3 and the measuring receiver 4 to measure visibility, the measured data is subjected to statistical analysis, the visibility data is transmitted to aviation management personnel, and the warning unit is reminded through the control of the warning device 8 to warn the visibility.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.