阅读说明：本技术 基于气敏半导体的臭氧探空仪及监测方法 (Ozone sonde based on gas-sensitive semiconductor and monitoring method ) 是由 林伟立 王垚 李梓铭 王馨悦 于 2020-07-07 设计创作，主要内容包括：本发明公开了基于气敏半导体的臭氧探空仪及监测方法,涉及臭氧监测领域。臭氧探空仪包括：探空载体,所述探空载体上搭载有第一存储器、环境传感器、逻辑控制器和至少一个臭氧传感器,所述逻辑控制器分别与所述探空载体、所述第一存储器、所述环境传感器和每个所述臭氧传感器连接。本发明适用于临近空间的臭氧监测,能够方便快捷地得到环境中的臭氧含量,可以在探空仪器上实现臭氧监测,能够满足仪器在在临近空间低温低压环境下长期原位测量臭氧的需求。(The invention discloses an ozone sonde based on a gas-sensitive semiconductor and a monitoring method, and relates to the field of ozone monitoring. The ozone sonde includes: the air sounding carrier is provided with a first storage, an environment sensor, a logic controller and at least one ozone sensor, and the logic controller is connected with the air sounding carrier, the first storage, the environment sensor and each ozone sensor. The invention is suitable for monitoring ozone in the adjacent space, can conveniently and quickly obtain the ozone content in the environment, can realize ozone monitoring on a sounding instrument, and can meet the requirement of the instrument for long-term in-situ ozone measurement in the low-temperature and low-pressure environment of the adjacent space.)

1. An ozone sonde based on a gas sensitive semiconductor, comprising: the sounding carrier is provided with a first memory, an environment sensor, a logic controller and at least one ozone sensor, wherein the logic controller is respectively connected with the sounding carrier, the first memory, the environment sensor and each ozone sensor, and the sounding carrier comprises:

the ozone sensor includes: the ozone generating device comprises a gas-sensitive semiconductor material and a signal processing circuit, wherein the gas-sensitive semiconductor material is used for generating corresponding electric signals when contacting ozone molecules with different concentrations, and the signal processing circuit is used for identifying and processing the electric signals generated by the gas-sensitive semiconductor material to obtain ozone data; the sounding carrier is used for sending a control signal to the logic controller, the logic controller is used for reading a system program stored in the first memory according to the control signal, acquiring ozone data monitored by the ozone sensor according to the system program, acquiring environmental information of an environment by the environmental sensor, and the sounding carrier is also used for receiving the ozone data and the environmental information sent by the logic controller.

2. The gas-sensitive semiconductor-based ozone sonde of claim 1, further comprising: and the satellite positioning module is connected with the logic controller and is used for acquiring the geographical position information according to the control instruction of the logic controller.

3. The gas-sensitive semiconductor-based ozone sonde of claim 2, further comprising: and the second memory is connected with the logic controller and is used for storing the ozone data, the environmental information and the geographical position information according to a control instruction of the logic controller.

4. The gas-sensitive semiconductor-based ozone sonde of claim 3, further comprising: and the external instruction communication module is respectively connected with the sounding carrier and the logic controller and is used for sending the control signal sent by the sounding carrier to the logic controller.

5. The gas-sensitive semiconductor-based ozone sonde of claim 4, further comprising: and the external storage communication module is respectively connected with the sounding carrier and the logic controller and is used for sending the ozone data, the environmental information and the geographical position information acquired by the logic controller to the sounding carrier.

6. The gas-sensitive semiconductor-based ozone sonde of claim 5, further comprising: an instrument housing, the satellite positioning module, the first memory, the second memory, the external command communication module, the external storage communication module, the environmental sensor, the logic controller, and all of the ozone sensors being disposed inside the instrument housing.

7. The gas-sensitive semiconductor-based ozone sonde of claim 6, further comprising: and the power supply module is respectively connected with the logic controller and each ozone sensor and is used for supplying power to the logic controller and each ozone sensor.

8. The gas-sensitive semiconductor-based ozone sonde of claim 7, further comprising: the charging interface is arranged on the surface of the instrument shell, is connected with the power supply module and is used for connecting an external power supply to charge the power supply module.

9. An ozone monitoring method, characterized in that ozone data in an environment is monitored using an ozone sonde according to any one of claims 1 to 8.

Technical Field

The invention relates to the field of ozone monitoring, in particular to an ozone sonde based on a gas-sensitive semiconductor and a monitoring method.

Background

Currently, in-situ measurement of commonly used ozone is generally based on ultraviolet photometry, electrochemical methods, and the like. The ultraviolet photometry is observed by a special laboratory observation instrument, is usually fixed in a laboratory for environmental ozone observation, and is used for measuring by pumping air from the outside to the instrument by an air pump, so that the ozone monitoring is carried out by a sonde, and an electrochemical method is usually used.

However, the electrochemical method needs an electrolytic cell, the space of the electrolytic cell is limited, the method cannot perform long-time measurement, the method is generally only used for one-time vertical profile measurement of ozone, the time duration is generally not more than 2 hours, and the solution in the electrolytic cell is obviously affected by the temperature and is easy to condense at low temperature, so that the method is difficult to complete the long-time high-odor in-situ oxygen monitoring task.

Disclosure of Invention

The invention aims to solve the technical problem of the prior art and provides an ozone sonde based on a gas-sensitive semiconductor and a monitoring method.

The technical scheme for solving the technical problems is as follows:

an ozone sonde based on a gas sensitive semiconductor comprising: the sounding carrier is provided with a first memory, an environment sensor, a logic controller and at least one ozone sensor, wherein the logic controller is respectively connected with the sounding carrier, the first memory, the environment sensor and each ozone sensor, and the sounding carrier comprises:

the ozone sensor includes: the ozone generating device comprises a gas-sensitive semiconductor material and a signal processing circuit, wherein the gas-sensitive semiconductor material is used for generating corresponding electric signals when contacting ozone molecules with different concentrations, and the signal processing circuit is used for identifying and processing the electric signals generated by the gas-sensitive semiconductor material to obtain ozone data; the sounding carrier is used for sending a control signal to the logic controller, the logic controller is used for reading a system program stored in the first memory according to the control signal, acquiring ozone data monitored by the ozone sensor according to the system program, acquiring environmental information of an environment by the environmental sensor, and the sounding carrier is also used for receiving the ozone data and the environmental information sent by the logic controller.

The ozone sonde provided by the invention monitors ozone in airflow through the ozone sensor containing the gas-sensitive semiconductor material, generates a corresponding electric signal through the characteristic that the gas-sensitive semiconductor material is sensitive to ozone molecules, and then detects the signal to conveniently and quickly obtain the ozone content in the environment.

Another technical solution of the present invention for solving the above technical problems is as follows:

an ozone monitoring method, which uses the ozone sonde in the technical proposal to monitor ozone data in the environment.

Advantages of additional aspects of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.

Drawings

FIG. 1 is a schematic diagram of a structural framework provided by an embodiment of the ozone sonde of the present invention;

FIG. 2 is a schematic diagram of a single ozone sensor architecture provided by another embodiment of the ozone sonde of the present invention;

FIG. 3 is a schematic diagram of a structural framework of a multi-ozone sensor provided in another embodiment of the ozone sonde of the present invention;

FIG. 4 is a schematic flow chart of data of a single ozone sensor provided by another embodiment of the ozone sonde of the present invention;

FIG. 5 is a schematic view of a data flow diagram of multiple ozone sensors provided by another embodiment of the ozone sonde of the present invention

Figure 6 is a flow chart of the calibration provided by the embodiment of the ozone sonde of the present invention.

Detailed Description

The principles and features of this invention are described below in conjunction with the following drawings, which are set forth to illustrate, but are not to be construed to limit the scope of the invention.

Currently, in situ measurement of ozone in the near space is typically based on electrochemical methods. The air pump pumps the air containing ozone into the neutral potassium iodide solution in the reaction tank, and the ozone and the potassium iodide are subjected to chemical reaction to generate free iodine and generate free electron transfer. The electron transfer amount is in direct proportion to the ozone content participating in the reaction, the magnitude of the conduction current is measured in an external circuit, and then the ozone content of the air pumped into the reaction tank is calculated. Due to the use of chemical reaction solution, the method is not suitable for extremely low temperature environment, and the service life of the solution is limited, so that the method is not suitable for long-time observation. The invention designs and manufactures a miniaturized ozone detecting instrument, which can carry out long-time in-situ ozone measurement in the atmosphere with the height of 18-25km near a space by a sounding carrier, thereby solving the problem of long-time in-situ ozone measurement in the low-temperature and low-pressure environment near the space.

As shown in fig. 1, a schematic diagram of a structural framework provided for an embodiment of the ozone sonde of the present invention includes: sounding carrier 1, the carrier of sounding carries on 1 first memory 2, environmental sensor 3, logic controller 4 and at least one ozone sensor 5, and logic controller 4 is connected with sounding carrier 1, first memory 2, environmental sensor 3 and every ozone sensor 5 respectively, wherein:

the ozone sensor 5 includes: the ozone generating device comprises a gas-sensitive semiconductor material and a signal processing circuit, wherein the gas-sensitive semiconductor material is used for generating corresponding electric signals when contacting ozone molecules with different concentrations, and the signal processing circuit is used for identifying and processing the electric signals generated by the gas-sensitive semiconductor material to obtain ozone data; the sounding carrier 1 is used for sending a control signal to the logic controller 4, the logic controller 4 is used for reading a system program stored in the first memory 2 according to the control signal and acquiring ozone data monitored by the ozone sensor 5 according to the system program, the logic controller 4 is also used for controlling the environment sensor 3 to acquire environment information, and the sounding carrier 1 is also used for receiving the ozone data and the environment information sent by the logic controller 4.

It should be understood that the system program stored in the first memory 2 may be written in advance by Python, C language, etc., and the first memory 2 may be a memory card, may be provided on the logic controller 4, and may be replaced.

The functions of the system program will be explained below.

1. The collection function is as follows: when the program is started, a plurality of processes are respectively created, each process respectively creates a corresponding planning task, and the planning tasks are used for acquiring various signals, such as signals of an ozone sensor 5, signals of an environment sensor 3 and satellite positioning signals, or 4G, 5G or radio frequency data transmission, or data combination and the like.

2. And (4) processing functions: after the original signal is acquired, the program processes and processes the signal. Acquiring time, longitude and latitude and height values from a control signal of an instruction end; acquiring an ozone value from an ozone sensor 5 signal; acquiring temperature, humidity and air pressure values from signals of an environment sensor 3; detailed geographical location information is obtained from satellite positioning.

And combining a plurality of groups of original data through a planning task to generate observation result data, and storing the observation result data.

And after the program obtains the observation result data, the observation result data is imported into a correction formula for processing to obtain quality control and correction data, and the quality control and correction data is stored.

3. And (4) a transmission function: and various data are sent to the designated server in a 4G, 5G or radio frequency mode and the like by controlling the external communication module 8.

4. And (4) display function: and pushing the content to be displayed to a display screen for displaying, or displaying an operating system interface.

Specifically, ozone sensor 5 may be an Aeroqual SM50 series sensor, environmental sensor 3 may be an I2C BME680 type sensor, and ozone sensor 5 and environmental sensor 3 may actively send the collected ozone data and environmental data to logic controller 4 at a preset frequency, and may also receive an instruction sent by logic controller 4, and passively return the collected ozone data and environmental data to logic controller 4 according to the instruction. It should be understood that the number of the sensors is at least one, and a plurality of sensors can be arranged according to actual requirements so as to improve the accuracy of ozone monitoring.

As shown in fig. 2, a schematic diagram of an exemplary single ozone sensor 5 is provided, the ozone sensor 5 is powered by a 12V power supply voltage stabilizing module 14, ozone data is obtained by monitoring ozone in the air flow, and the ozone data is sent to a logic controller 4 through an internal communication module 9 for subsequent storage and sending to a sounding carrier 1.

As shown in fig. 3, a schematic structural diagram of an exemplary multiple ozone sensor 5 is provided, each ozone sensor is powered by a 12V power supply voltage stabilizing module 14, ozone sensors 5 obtain multiple ozone data by monitoring ozone in air flow, the multiple ozone data are sent to a logic controller 4 through independent internal communication modules 9, and the multiple ozone data are stored and sent to a sounding carrier 1 by the logic controller 4.

It should be understood that when the ozone sonde provided by the present invention is used for ozone monitoring, the instrument needs to be calibrated in advance, the calibration process is as shown in fig. 6, ozone with different concentrations is generated by the ozone generator, then multiple measurements are performed by the ozone detector, and the obtained measurement results are subjected to fitting degree calculation, so as to perform quality control and correction.

The ozone sonde that this embodiment provided, ozone in to the air current is monitored through ozone sensor 5 that contains gas sensitive semiconductor material, the characteristic sensitive to the ozone molecule through gas sensitive semiconductor material, generate corresponding signal of telecommunication, then detect, can obtain the ozone content in the environment convenient and fast ground, because semiconductor sensor has self small, light in weight, moreover, the steam generator is simple in structure, long-lived advantage, and measuring accuracy receives the influence of temperature and pressure variation little, only need simple preheating just can normally work, consequently, can realize ozone monitoring on the sonde, can satisfy the instrument and measure the demand of ozone in the long-term normal position under the low temperature low pressure environment of near space, help realizing more extensive observation near subaerial, and have wide application prospect on the perpendicular profile detection of boundary layer.

The ozone sonde provided by the present invention is further illustrated with reference to fig. 2 and 3.

Optionally, in some embodiments, the method further comprises: and the satellite positioning module 6 is connected with the logic controller 4 and is used for acquiring the geographical position information according to the control instruction of the logic controller 4.

Optionally, in some embodiments, the method further comprises: and the second memory 7 is connected with the logic controller 4 and is used for storing ozone data, environmental information and geographical position information according to the control instruction of the logic controller 4.

Optionally, in some embodiments, the method further comprises: and the external instruction communication module 81 is connected with the sounding carrier 1 and the logic controller 4 respectively, and is used for sending the control signal sent by the sounding carrier 1 to the logic controller 4.

Optionally, in some embodiments, the method further comprises: and the external storage communication module 82, the external storage communication module 82 is respectively connected with the sounding carrier 1 and the logic controller 4, and is used for sending the ozone data, the environmental information and the geographical position information collected by the logic controller 4 to the sounding carrier 1.

Optionally, the system further comprises an internal communication module 9, wherein the internal communication module 9 supports TTL, RS232, and RS485 protocols, and the external instruction communication module 81 and the external storage communication module 82 support TTL, RS232, RS485, and RS422 protocols.

Optionally, the ozone monitoring system further comprises a 4G/5G communication module 10, wherein the 4G/5G communication module 10 is connected to the logic controller 4 and is used for sending the ozone data, the environmental information and the geographical location information to a preset terminal according to a control instruction of the logic controller 4.

As shown in fig. 2 and 3, the environment sensor 3, the ozone sensor 5, the satellite positioning module 6, the external instruction communication module 81, the external storage communication module 82, the 4G/5G communication module 10, and the like are connected to the logic controller 4 via the internal communication module 9.

Optionally, in some embodiments, the method further comprises: the instrument housing, the satellite positioning module 6, the first memory 2, the second memory 7, the external instruction communication module 81, the external storage communication module 82, the environmental sensor 3, the logic controller 4, and the all ozone sensor 5 are disposed inside the instrument housing.

It should be noted that the instrument housing can be made of different materials according to different environments, for example, when high strength and impact resistance are required, an aviation aluminum material can be selected and made by processes such as CNC, oxidation and the like; when light weight is required, plastic materials such as acrylic and the like can be selected and manufactured through a laser cutting or injection molding process.

Optionally, in some embodiments, the method further comprises: and the power supply module is respectively connected with the logic controller 4 and each ozone sensor 5 and is used for supplying power to the logic controller 4 and each ozone sensor 5.

As shown in fig. 2 and fig. 3, the power supply module may include a switch 13, a 12V power supply voltage stabilizing module 14, and a 5V power supply voltage stabilizing module 15, wherein the 12V power supply voltage stabilizing module 14 supplies power to the ozone sensor 5, the 5V power supply voltage stabilizing module 15 supplies power to the logic controller 4, and the satellite positioning module 6, the external instruction communication module 81, the external storage communication module 82, and the like may supply power through the logic controller 4.

Optionally, in some embodiments, the method further comprises: and the charging interface 16 is arranged on the surface of the instrument shell, is connected with the power supply module, is used for connecting an external power supply to charge the power supply module and supports 12-48V direct current.

It should be understood that the communication interface, the power interface and the like provided by the invention can use an aviation plug with higher safety degree, and can also replace plugs of different types and types according to requirements.

In another embodiment, as shown in fig. 4, it is a data flow chart of a single ozone sensor, and the data processing flow of the single ozone sensor is described below with reference to fig. 4.

Firstly, an ozone sonde is powered on, a sounding carrier sends out a control signal, a logic controller receives the control signal and then acquires control information from the control signal, an ozone sensor monitors the ozone signal and sends the ozone signal to the logic controller, ozone data is obtained after the ozone data is processed by the logic controller, an environment sensor monitors the environment signal and sends the environment signal to the logic controller, environment data is obtained after the environment signal is processed by the logic controller, a satellite positioning module monitors a positioning signal and obtains positioning data after the positioning signal is processed by the logic controller, and then the logic controller packs the control information, the ozone data, the environment data and the positioning data to be used as observation result data to be stored, and stores the observation result data after quality control and correction. And then the logic controller displays the observation result data and the quality control and correction data or sends the observation result data and the quality control and correction data to a designated server through data transmission modes such as 4G, 5G or radio frequency and the like.

The control information comprises the current time, longitude and latitude, height and the like of the sounding carrier, and the environmental information comprises temperature, humidity, air pressure and the like.

As shown in fig. 5, the data flow chart of the multi-ozone sensor is different only in that a plurality of ozone sensors collect ozone signals, and the logic controller packages the ozone data as a plurality of monitoring results, control information, environmental data and positioning data as observation result data.

It is understood that some or all of the alternative embodiments described above may be included in some embodiments.

Another technical solution of the present invention for solving the above technical problems is as follows:

an ozone monitoring method for monitoring ozone data in an environment using an ozone sonde according to any of the embodiments described above.

The reader should understand that in the description of this specification, reference to the description of the terms "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

In the several embodiments provided in the present application, it should be understood that the disclosed apparatus and method may be implemented in other ways. For example, the above-described method embodiments are merely illustrative, and for example, the division of steps into only one logical functional division may be implemented in practice in another way, for example, multiple steps may be combined or integrated into another step, or some features may be omitted, or not implemented.

While the invention has been described with reference to specific embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.