阅读说明：本技术 一种电缆隧道智能监控系统 (Intelligent monitoring system for cable tunnel ) 是由 刘效勇 王敬海 赵洪波 刘发成 唐志兴 刘涛 陈明 田兴华 孙志波 王磊 闫海 于 2019-09-29 设计创作，主要内容包括：本发明提供一种电缆隧道智能监控系统,可以实现电缆隧道内部温度湿度,烟气、氧气含量实时检测。电缆隧道智能监控系统具有电缆隧道内部温度湿度,烟气、氧气等参数的实施监控。电缆隧道智能监控系统具有电缆隧道内部各部分工作情况的实时视频监控。电缆隧道智能监控系统具有间隔灭火功能,可迅速将区域火源消灭,防止火灾扩大。电缆隧道智能监控系统具有电缆隧道自动排水功能。电缆隧道智能监控系统满足人员进入隧道时,先通风,检测,工作的要求。电缆隧道智能监控系统可以远程监测内部水位,空气,有毒气体,并提供相应的应对方法,提供电缆隧道内部影像,方便电缆隧道的巡视。同时可以为人员进入巡视进行通风、气体检测以及人员防护。(The invention provides an intelligent monitoring system for a cable tunnel, which can realize real-time detection of the temperature and humidity in the cable tunnel and the content of smoke and oxygen. The cable tunnel intelligent monitoring system has the implementation and monitoring of the temperature and humidity inside the cable tunnel, smoke, oxygen and other parameters. The cable tunnel intelligent monitoring system has real-time video monitoring of the working conditions of all parts in the cable tunnel. The cable tunnel intelligent monitoring system has an interval fire extinguishing function, can quickly extinguish an area fire source and prevent fire from expanding. The cable tunnel intelligent monitoring system has the automatic drainage function of the cable tunnel. The intelligent monitoring system for the cable tunnel meets the requirements of ventilation, detection and work firstly when personnel enter the tunnel. The cable tunnel intelligent monitoring system can remotely monitor the internal water level, air and toxic gas, provide a corresponding coping method, provide internal images of the cable tunnel and facilitate the inspection of the cable tunnel. Meanwhile, ventilation, gas detection and personnel protection can be performed for personnel to enter the patrol.)

1. An intelligent monitoring system for a cable tunnel is characterized in that a monitoring component is configured in a monitoring area preset in the cable tunnel; the monitoring assembly includes: the device comprises a data processor, a communication module, a temperature and humidity sensor, a smoke sensor, an oxygen sensor, a water level detection control device, a drainage mechanism, a fire extinguishing device and a ventilation device;

the communication module, the temperature and humidity sensor, the smoke sensor, the oxygen sensor, the water level detection control device, the drainage mechanism, the ventilation device and the fire extinguishing device are respectively in communication connection with the data processor;

the data processor acquires temperature and humidity information of a cable tunnel monitoring area through the temperature and humidity sensor, compares the acquired temperature and humidity information with a preset threshold value, and sends a temperature and humidity alarm prompt to the server through the communication module if the temperature and humidity information exceeds the preset threshold value;

the data processor acquires smoke information of a cable tunnel monitoring area through the smoke sensor, compares the acquired smoke information with a preset threshold value, and sends a smoke alarm prompt to the server through the communication module if the acquired smoke information exceeds the preset threshold value; meanwhile, the data processor controls the ventilation device to operate, so that ventilation and air exchange are carried out;

the data processor acquires oxygen information of a cable tunnel monitoring area through the oxygen sensor, compares the acquired oxygen information with a preset threshold value, and sends an oxygen alarm prompt to the server through the communication module if the acquired oxygen information is lower than the preset threshold value; meanwhile, the data processor controls the ventilation device to operate, so that ventilation and air exchange are carried out;

the data processor acquires ground water level information of a cable tunnel monitoring area through the water level detection control device, compares the acquired ground water level information with a preset threshold value, and if the ground water level information exceeds the preset threshold value, the data processor sends a ground water level alarm prompt to the server through the communication module, and meanwhile, the drainage mechanism operates to drain water from the cable tunnel.

2. The intelligent cable tunnel monitoring system of claim 1,

the water level detection control device includes: a water level monitoring unit and a liquid level switch;

the water level monitoring unit is provided with a sensor mounting seat (21), the bottom of the sensor mounting seat (21) is provided with a balance weight (20), the side part of the sensor mounting seat (21) is provided with a water inlet mesh (22), and a pressure type water level sensor (23) is arranged inside the sensor mounting seat (21); the top of the sensor mounting seat (21) is a sealing structure;

a stainless steel sleeve (24) is arranged outside the pressure type water level sensor (23), and the bottom plate of the stainless steel sleeve (24) is connected with the top of the balance weight (22); a water level detection water inlet and outlet hole (25) is formed in the side wall of the stainless steel sleeve (24) and close to the bottom of the stainless steel sleeve, a pressure type water level sensing unit (26) is arranged inside the stainless steel sleeve (24), and the pressure type water level sensing unit (26) is connected with a bottom plate of the stainless steel sleeve (24); the pressure type water level sensing unit (26) is connected with the transmitter (27) through a waterproof signal line or in a wireless communication mode, and the transmitter (27) is connected with the data processor through a waterproof signal line or in a wireless communication mode.

3. The intelligent cable tunnel monitoring system of claim 2,

the liquid level switch is provided with a weight (31), the upper part of the weight (31) is provided with a cylinder shell (32), the bottom of the weight (31) is provided with a water inlet hole (33) communicated with the cylinder shell (32),

a float bowl (34) and a reed switch (36) are arranged in the cylinder shell (32), and the float bowl (34) is connected with a magnet (35); the reed switch (36) is arranged close to the inner top wall of the cylinder shell (32); reed switch (36) and

the float bowl (34) floats upwards based on the water inflow in the cylinder shell (32), and when the set height of the reed switch (36) is reached, the reed switch (36) is touched.

4. The intelligent cable tunnel monitoring system of claim 3,

the drainage mechanism includes: a sensor starting circuit, a manual control circuit, an automatic operation circuit, a motor control circuit, a motor state circuit, a manual-automatic change-over switch S, a starting normally-open switch K1, a stopping normally-closed switch K2, a first control coil M0, a second control coil M1, a third control coil M2 and a water pump (37);

in a sensor starting path, a first end of a reed switch (36) is connected with a first control line, and a second end of the reed switch (36) is connected with a second control line through a first control coil M0;

in the manual control path, a first end of a manual switch of a manual-automatic change-over switch S is connected with a first control line, and a second end of the manual switch of the manual-automatic change-over switch S is respectively connected with a first end of a starting normally-open switch K1 and a first end of a second control coil M1; a second end of the starting normally-open switch K1 and a second end of the second control coil M1 are respectively connected with a first end of the stopping normally-closed switch K2; the second end of the stop normally-closed switch K2 is connected with a second control line through a second control coil M1;

in the automatic running path, the first end of the second control coil M1 and the first end of the automatic switch of the manual-automatic change-over switch S are respectively connected with a first control line, and the first end of the first control coil M0 is connected with the second end of the automatic switch of the manual-automatic change-over switch S; the second end of the first control coil M0 and the second end of the second control coil M1 are respectively connected with a second control line through a third control coil M2;

in the motor control path, a first end of a third control coil M2 is connected with a first control line, and a second end of the third control coil M2 is connected with a second control line through a water pump (37);

in the motor state path, the first end of the third control coil M2 is connected to the first control line, and the second end of the third control coil M2 is connected to the second control line.

5. Intelligent monitoring system for cable tunnels according to claim 1 or 2,

a preset number of monitoring areas (10) are arranged in the cable tunnel; each monitoring area is isolated by a fireproof partition wall (42);

a tunnel inlet (41) is arranged in each monitoring area, and a ventilation device is arranged close to the tunnel inlet (41); a human body induction module (43) is arranged near the tunnel entrance (41); the human body induction module (43) is connected with the data processor through a signal wire or in a wireless communication mode; the bottom of each monitoring area is provided with an air outlet (44).

6. The intelligent cable tunnel monitoring system of claim 5,

one end of the ventilation device, which is provided with the outer pipeline (45), is provided with an air supply outlet (46), the air supply outlet (46) is connected with a blower (47), and an air inlet of the blower (47) is connected with the tunnel inlet (41);

an inner pipeline (48) is arranged in the outer pipeline (45), one end of the inner pipeline (48) is connected with a lead screw (49), the lead screw (49) extends out of the outer pipeline (45) and is connected with a stepping motor (51); a manual disc (52) is connected to the stepping motor (51), and scales (54) are arranged on the manual disc (52);

a boss (55) is arranged on the inner wall of the outer pipeline (45), a groove (56) matched with the boss (55) is arranged on the inner pipeline (48), and the boss (55) is matched with the groove (56);

the pipe wall of the outer pipeline (45) is provided with a plurality of outer through holes (57), and the pipe wall of the inner pipeline (48) is provided with a plurality of inner through holes (58); the stepping motor (51) drives the inner pipeline (48) to move in the outer pipeline (45) through the lead screw (49), the positions of the outer through hole (57) and the inner through hole (58) are adjusted, the outer through hole (57) and the inner through hole (58) are overlapped, and ventilation is achieved.

7. Intelligent monitoring system for cable tunnels according to claim 1 or 2,

the fire extinguishing device is provided with a suspension type dry powder tank (61), a fire extinguishing controller (64) and a starting module (65);

a hanging ring (62) is arranged at the top of the suspension type dry powder tank (61), and the suspension type dry powder tank (61) is hung at the top of the cable tunnel through the hanging ring (62); the bottom of the suspension type dry powder tank (61) is provided with a pressure gauge (60) and a temperature sensing glass ball (63);

the fire extinguishing controller (64) is connected with a switch of the suspension type dry powder tank (61) through a starting module (65) and an electric starting signal line;

the pressure gauge (62) is connected with the fire extinguishing controller (64) through a feedback signal line, and the fire extinguishing controller (64) acquires the pressure state of the suspension type dry powder tank (61) through the pressure gauge (62).

8. Intelligent monitoring system for cable tunnels according to claim 1 or 2,

a monitoring controller (70) and a camera mechanism (71) which are in preset quantity are arranged in the monitoring area (10) of each cable tunnel;

the camera mechanism (71) is provided with a fisheye camera (73), and the fisheye camera (73) is provided with a light supplement lamp (74) and a fisheye lens (75);

electric heating pieces (76) are arranged around the fisheye lens (75); the electric heating piece (76) is connected with a temperature controller (78);

the temperature controller (78) and the fisheye camera (73) are respectively connected with the data processor through the monitoring controller (70).

9. The intelligent cable tunnel monitoring system of claim 8,

the camera shooting mechanism (71) is also provided with a lens cleaning control module (79), an electromagnet (84) and an adjustable hanging rack (81);

a wiping arc bracket (72) is connected to the fisheye camera (73), and a wiping head (77) is connected to the top end of the wiping arc bracket (72);

one end of the electromagnet (84) is connected with the wiping arc support (72) through the movable joint (83) and the adjustable hanging rack (81), the electromagnet (84) receives a control instruction of the lens cleaning control module (79) to act, and the wiping head (77) is pushed to perform circular motion on the wiping arc support (72) according to a lever principle and moves to the position of the fisheye lens (75) to be in contact with the fisheye lens (75), so that impurities on the fisheye lens (75) are removed.

Technical Field

The invention relates to the technical field of cable tunnel detection, in particular to an intelligent monitoring system for a cable tunnel.

Background

The cable tunnel in the transformer station is an important part in the transformer station, and is a corridor or tunnel type structure capable of accommodating a large amount of cables laid on a cable support. The cable tunnel can protect the cable better and also can facilitate the inspection and maintenance of the cable by people.

General cable tunnel sets up in the underground, and the normal conditions is a comparatively confined environment, and in the cable tunnel in addition for reaching the fire prevention purpose, adopt to cut off the mode and made and prevent hot wall, cause the inside air of cable tunnel dirty like this, when the personnel of point inspection patrol and examine, if ventilate not smooth, can cause dangerous the emergence. And because the cable tunnel sets up regional easy ponding in some underground, it is more for serious ponding, can soak electrical components such as cable in aqueous, cause the potential safety hazard easily to the darker personnel of ponding can not get into the cable tunnel, are difficult to realize patrolling and examine and target in place, also can't in time discover the potential safety hazard.

Disclosure of Invention

In order to overcome the defects in the prior art, the invention provides an intelligent monitoring system for a cable tunnel, which is characterized in that a monitoring component is configured in a monitoring area preset in the cable tunnel; the monitoring assembly includes: the device comprises a data processor, a communication module, a temperature and humidity sensor, a smoke sensor, an oxygen sensor, a water level detection control device, a drainage mechanism, a fire extinguishing device and a ventilation device;

the communication module, the temperature and humidity sensor, the smoke sensor, the oxygen sensor, the water level detection and control device, the drainage mechanism, the ventilation device and the fire extinguishing device are respectively in communication connection with the data processor;

the data processor acquires temperature and humidity information of a cable tunnel monitoring area through the temperature and humidity sensor, compares the acquired temperature and humidity information with a preset threshold value, and sends a temperature and humidity alarm prompt to the server through the communication module if the temperature and humidity information exceeds the preset threshold value;

the data processor acquires smoke information of a cable tunnel monitoring area through the smoke sensor, compares the acquired smoke information with a preset threshold value, and sends a smoke alarm prompt to the server through the communication module if the acquired smoke information exceeds the preset threshold value; meanwhile, the data processor controls the ventilation device to operate, so that ventilation and air exchange are carried out;

the data processor acquires oxygen information of a cable tunnel monitoring area through the oxygen sensor, compares the acquired oxygen information with a preset threshold value, and sends an oxygen alarm prompt to the server through the communication module if the acquired oxygen information is lower than the preset threshold value; meanwhile, the data processor controls the ventilation device to operate, so that ventilation and air exchange are carried out;

the data processor acquires ground water level information of a cable tunnel monitoring area through the water level detection control device, compares the acquired ground water level information with a preset threshold value, and if the ground water level information exceeds the preset threshold value, the data processor sends a ground water level alarm prompt to the server through the communication module, and meanwhile, the drainage mechanism operates to drain water from the cable tunnel.

It should be further noted that the water level detection control device includes: a water level monitoring unit and a liquid level switch;

the water level monitoring unit is provided with a sensor mounting seat, the bottom of the sensor mounting seat is provided with a balance weight, the side part of the sensor mounting seat is provided with a water inlet mesh, and a pressure type water level sensor is arranged inside the sensor mounting seat; the top of the sensor mounting seat is a sealing structure;

a stainless steel sleeve is arranged outside the pressure type water level sensor, and a bottom plate of the stainless steel sleeve is connected with the top of the balance weight; a water level detection water inlet and outlet hole is formed in the side wall of the stainless steel sleeve and close to the bottom of the stainless steel sleeve, a pressure type water level sensing unit is arranged inside the stainless steel sleeve, and the pressure type water level sensing unit is connected with a bottom plate of the stainless steel sleeve; the pressure type water level sensing unit is connected with the transmitter through a waterproof signal line or in a wireless communication mode, and the transmitter is connected with the data processor through the waterproof signal line or in the wireless communication mode.

It is further noted that the liquid level switch is provided with a weight, the upper part of the weight is provided with a cylinder shell, the bottom of the weight is provided with a water inlet hole communicated with the cylinder shell,

a float bowl and a reed switch are arranged in the shell of the cylinder body, and the float bowl is connected with a magnet; the reed switch is arranged close to the inner top wall of the cylinder shell; reed switch and

the flotation pontoon floats based on the inside inflow of barrel shell, when reaching the height that sets up of tongue tube switch, touches the tongue tube switch.

It should be further noted that a preset number of monitoring areas are arranged in the cable tunnel; each monitoring area is isolated by a fire partition;

a tunnel inlet is arranged in each monitoring area, and a ventilation device is arranged close to the tunnel inlet; a human body induction module is arranged close to the tunnel entrance; the human body induction module is connected with the data processor through a signal wire or in a wireless communication mode; and the bottom of each monitoring area is provided with an air outlet.

It should be further noted that one end of the ventilation device, which is provided with the outer pipeline, is provided with an air supply outlet, the air supply outlet is connected with a blower, and an air inlet of the blower is connected with the tunnel inlet;

an inner pipeline is arranged in the outer pipeline, one end of the inner pipeline is connected with a lead screw, the lead screw extends out of the outer pipeline and is connected with a stepping motor; a manual disc is connected to the stepping motor, and scales are arranged on the manual disc;

the inner wall of the outer pipeline is provided with a boss, the inner pipeline is provided with a groove matched with the boss, and the boss is matched with the groove;

the pipe wall of the outer pipeline is provided with a plurality of outer through holes, and the pipe wall of the inner pipeline is provided with a plurality of inner through holes; the stepping motor drives the inner pipeline to move in the outer pipeline through the lead screw, and positions of the outer through hole and the inner through hole are adjusted, so that the outer through hole and the inner through hole are overlapped with each other and are ventilated.

Further, the fire extinguishing device is provided with a suspended dry powder tank, a fire extinguishing controller and a starting module;

the top of the suspension type dry powder tank is provided with a hanging ring, and the suspension type dry powder tank is hung on the top of the cable tunnel through the hanging ring; the bottom of the suspension type dry powder tank is provided with a pressure gauge and a temperature sensing glass ball;

the fire extinguishing controller is connected with a switch of the suspension type dry powder tank through a starting module and an electric starting signal line;

the manometer passes through feedback signal line connection fire extinguishing controller, and fire extinguishing controller acquires the pressure state of suspension type dry powder jar through the manometer.

It should be further noted that a preset number of monitoring controllers and camera mechanisms are arranged in the monitoring area of each cable tunnel;

the camera shooting mechanism is provided with a fisheye camera, and a light supplement lamp and a fisheye lens are arranged on the fisheye camera;

the periphery of the fisheye lens is provided with an electric heating piece; the electric heating piece is connected with a temperature controller;

the temperature controller and the fisheye camera are respectively connected with the data processor through the monitoring controller.

The camera shooting mechanism is also provided with a lens cleaning control module, an electromagnet and an adjustable hanging frame;

the fisheye camera is connected with a wiping arc bracket, and the top end of the wiping arc bracket is connected with a wiping head;

one end of the electromagnet is connected with the wiping arc support through the movable joint and the adjustable hanging rack, the electromagnet receives a control instruction of the lens cleaning control module to move, the wiping head is pushed to conduct circular motion on the wiping arc support according to the lever principle, and the wiping head moves to the position of the fisheye lens to be in contact with the fisheye lens, so that impurities on the fisheye lens are removed.

According to the technical scheme, the invention has the following advantages:

the intelligent monitoring system for the cable tunnel can realize real-time detection of the temperature and humidity inside the cable tunnel and the content of smoke and oxygen. The temperature and humidity sensor, the smoke sensor and the oxygen sensor are integrated by the sensor integrated alarm unit, are communicated with the cable tunnel intelligent inspection system, and send the temperature and humidity, smoke and oxygen parameters.

The cable tunnel intelligent monitoring system has the implementation and monitoring of the temperature and humidity inside the cable tunnel, smoke, oxygen and other parameters. The cable tunnel intelligent monitoring system has real-time video monitoring of the working conditions of all parts in the cable tunnel. The cable tunnel intelligent monitoring system has an interval fire extinguishing function, can quickly extinguish an area fire source and prevent fire from expanding. The cable tunnel intelligent monitoring system has the automatic drainage function of the cable tunnel. The intelligent monitoring system for the cable tunnel meets the requirements of ventilation, detection and work firstly when personnel enter the tunnel.

The cable tunnel intelligent monitoring system can remotely monitor the internal water level, air and toxic gas, provides a corresponding coping method, provides an internal image of the cable tunnel, and facilitates the inspection of the cable tunnel. Meanwhile, ventilation, gas detection and personnel protection can be performed for personnel to enter the patrol.

Drawings

In order to more clearly illustrate the technical solution of the present invention, the drawings used in the description will be briefly introduced, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained based on these drawings without inventive labor.

FIG. 1 is a schematic diagram of an embodiment of a cable tunnel intelligent monitoring system;

FIG. 2 is a schematic view of an embodiment of a water level monitoring unit;

FIG. 3 is a schematic view of an embodiment of a water level monitoring unit;

FIG. 4 is a schematic view of an embodiment of a level switch;

FIG. 5 is a schematic view of an embodiment of a level switch;

FIG. 6 is a schematic view of an embodiment of a drainage mechanism;

FIG. 7 is a schematic view of an embodiment of cable tunnel ventilation;

FIG. 8 is a schematic view of an embodiment of a ventilation device;

FIG. 9 is a schematic view of an embodiment of a ventilation device;

FIG. 10 is a schematic view of an embodiment of a ventilation device;

FIG. 11 is a schematic view of an embodiment of a ventilation device;

FIG. 12 is a schematic view of an embodiment of a ventilation device;

FIG. 13 is a schematic view of an embodiment of a fire suppression apparatus;

FIG. 14 is a schematic view of an embodiment of a fire suppression apparatus;

FIG. 15 is a schematic view of an embodiment of an imaging mechanism;

fig. 16 is a schematic view of an embodiment of the imaging mechanism.

Detailed Description

Those of ordinary skill in the art will appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware, computer software, or combinations of both, and that the various illustrative components and steps have been described above generally in terms of their functionality in order to clearly illustrate the interchangeability of hardware and software. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present invention.

The block diagrams shown in the figures are functional entities only and do not necessarily correspond to physically separate entities. I.e. the functional entities may be implemented in the form of software, or in one or more hardware modules or integrated circuits, or in different networks and/or processor devices and/or microcontroller devices.

In the several embodiments provided in the present application, it should be understood that the disclosed system, apparatus and method may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the units is only one logical functional division, and in actual implementation, there may be other divisions, for example, multiple units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may also be an electric, mechanical or other form of connection.

The invention provides an intelligent monitoring system for a cable tunnel, which is characterized in that as shown in figures 1 to 16, a monitoring component is configured in a monitoring area preset in the cable tunnel; the monitoring assembly includes: the device comprises a data processor, a communication module, a temperature and humidity sensor, a smoke sensor, an oxygen sensor, a water level detection control device, a drainage mechanism, a fire extinguishing device and a ventilation device;

the communication module, the temperature and humidity sensor, the smoke sensor, the oxygen sensor, the water level detection and control device, the drainage mechanism, the ventilation device and the fire extinguishing device are respectively in communication connection with the data processor;

the data processor acquires temperature and humidity information of a cable tunnel monitoring area through the temperature and humidity sensor, compares the acquired temperature and humidity information with a preset threshold value, and sends a temperature and humidity alarm prompt to the server through the communication module if the temperature and humidity information exceeds the preset threshold value;

the data processor acquires smoke information of a cable tunnel monitoring area through the smoke sensor, compares the acquired smoke information with a preset threshold value, and sends a smoke alarm prompt to the server through the communication module if the acquired smoke information exceeds the preset threshold value; meanwhile, the data processor controls the ventilation device to operate, so that ventilation and air exchange are carried out;

the data processor acquires oxygen information of a cable tunnel monitoring area through the oxygen sensor, compares the acquired oxygen information with a preset threshold value, and sends an oxygen alarm prompt to the server through the communication module if the acquired oxygen information is lower than the preset threshold value; meanwhile, the data processor controls the ventilation device to operate, so that ventilation is performed;

the data processor acquires ground water level information of a cable tunnel monitoring area through the water level detection control device, compares the acquired ground water level information with a preset threshold value, and if the ground water level information exceeds the preset threshold value, the data processor sends a ground water level alarm prompt to the server through the communication module, and meanwhile, the drainage mechanism operates to drain water from the cable tunnel.

Wherein, water level detection controlling means includes: a water level monitoring unit and a liquid level switch; the water level monitoring unit is provided with a sensor mounting seat 21, the bottom of the sensor mounting seat 21 is provided with a balance weight 20, the side part of the sensor mounting seat 21 is provided with a water inlet mesh 22, and a pressure type water level sensor 23 is arranged inside the sensor mounting seat 21; the top of the sensor mounting seat 21 is a sealing structure;

a stainless steel sleeve 24 is arranged outside the pressure type water level sensor 23, and the bottom plate of the stainless steel sleeve 24 is connected with the top of the balance weight 22; a water level detection water inlet and outlet hole 25 is formed in the side wall of the stainless steel sleeve 24 and close to the bottom of the stainless steel sleeve 24, a pressure type water level sensing unit 26 is arranged inside the stainless steel sleeve 24, and the pressure type water level sensing unit 26 is connected with the bottom plate of the stainless steel sleeve 24; the pressure type water level sensing unit 26 is connected with the transmitter 27 through a waterproof signal line or through a wireless communication mode, and the transmitter 27 is connected with the data processor through a waterproof signal line or through a wireless communication mode.

The liquid level switch is provided with a weight 31, the upper part of the weight 31 is provided with a cylinder shell 32, the bottom of the weight 31 is provided with a water inlet 33 communicated with the cylinder shell 32,

a float 34 and a reed switch 36 are arranged in the cylinder shell 32, and the float 34 is connected with a magnet 35; the reed switch 36 is disposed near the inner top wall of the cartridge housing 32; reed switch 36 and

the float 34 floats up based on the water inflow in the cylinder case 32, and touches the reed switch 36 when reaching the set height of the reed switch 36.

The drainage mechanism includes: a sensor starting path, a manual control path, an automatic operation path, a motor control path, a motor state path, a manual-automatic change-over switch S, a starting normally-open switch K1, a stopping normally-open switch K2, a first control coil M0, a second control coil M1, a third control coil M2 and a water pump 37; in the sensor starting path, a first end of a reed switch 36 is connected with a first control line, and a second end of the reed switch 36 is connected with a second control line through a first control coil M0; in the manual control path, a first end of a manual switch of the manual-automatic change-over switch S is connected with a first control line, and a second end of the manual switch of the manual-automatic change-over switch S is respectively connected with a first end of a starting normally-open switch K1 and a first end of a second control coil M1; a second end of the start normally-open switch K1 and a second end of the second control coil M1 are respectively connected with a first end of the stop normally-closed switch K2; the second end of the stop normally-closed switch K2 is connected with a second control line through a second control coil M1; in the automatic running path, the first end of the second control coil M1 and the first end of the automatic switch of the manual-automatic change-over switch S are respectively connected with a first control line, and the first end of the first control coil M0 is connected with the second end of the automatic switch of the manual-automatic change-over switch S; the second end of the first control coil M0 and the second end of the second control coil M1 are respectively connected with a second control line through a third control coil M2; in the motor control path, the first end of a third control coil M2 is connected with a first control line, and the second end of the third control coil M2 is connected with a second control line through a water pump 37; in the motor state path, a first end of the third control coil M2 is connected to the first control line, and a second end of the third control coil M2 is connected to the second control line.

The working process and the connection mode of the water level detection control device and the drainage mechanism are as described above, the water level detection control device and the drainage mechanism detect the water level inside the tunnel in real time, provide water level detection, and can set automatic drainage.

The drain pump can drain water as the pump body is activated. The drain pipe is led out of the cable tunnel to guide water to be discharged. The pressure type water level sensor detects the water level. The pressure sensing unit converts the pressure signal into an electrical signal. The stainless steel housing may be referred to as a sensor. The inlet opening can be with the inside water intaking of cable tunnel introduce stainless steel sleeve. The sealing port can realize that the mounting seat seals the sensor. The water inlet mesh prevents sundries from entering the pressure type water level sensor. The balance weight is made of stainless steel and used for dropping the sensor into the balance weight under water. The transducer is responsible for processing and uploading the sensor signal, and has liquid level display and communication functions. A liquid level switch: detects the liquid level and provides a liquid level signal, and the liquid level switch has a plastic housing. The shell of the cylinder body is provided with a cavity which can allow the magnet and the buoy to move up and down in the shell. The magnet is arranged on the buoy. When the float bowl is filled with water, the float bowl floats up to support the magnet and attract the reed pipe. The weight can drop the liquid level switch into the stainless steel block in the water. The inlet opening is dentate, can filter aquatic impurity. When the water level is not high, the magnet does not float upwards, the reed pipe is disconnected, and when the water level rises, the magnet is lifted to float upwards to attract the reed pipe.

The drainage mechanism is provided with a sensor starting circuit, a manual control circuit, an automatic operation circuit, a motor control circuit and a motor state circuit, and has a manual/automatic switching function, a manual mode is adopted, a sensor is pressed to start, a water pump is started, a sensor is pressed to stop, the water pump is stopped, an automatic mode is adopted, a sensor starting circuit is adopted, when water exists, a circuit is started, the water pump operates, and the water pump operation state is obtained through M2.

The invention relates to a method for monitoring a cable tunnel, which comprises the following steps that a preset number of monitoring areas 10 are arranged in the cable tunnel; each monitored area is isolated by a firestop wall 42; a tunnel inlet 41 is arranged in each monitoring area, and a ventilation device is arranged close to the tunnel inlet 41; a human body induction module 43 is arranged near the tunnel entrance 41; the human body induction module 43 is connected with the data processor through a signal line or in a wireless communication mode; the bottom of each monitoring area is provided with an air outlet 44.

One end of the ventilation device provided with the outer pipeline 45 is provided with an air supply outlet 46, the air supply outlet 46 is connected with a blower 47, and an air inlet of the blower 47 is connected with the tunnel inlet 41; an inner pipeline 48 is arranged in the outer pipeline 45, one end of the inner pipeline 48 is connected with a lead screw 49, and the lead screw 49 extends out of the outer pipeline 45 and is connected with a stepping motor 51; a manual disc 52 is connected to the stepping motor 51, and scales 54 are arranged on the manual disc 52;

a boss 55 is arranged on the inner wall of the outer pipeline 45, a groove 56 matched with the boss 55 is arranged on the inner pipeline 48, and the boss 55 is matched with the groove 56; the pipe wall of the outer pipeline 45 is provided with a plurality of outer through holes 57, and the pipe wall of the inner pipeline 48 is provided with a plurality of inner through holes 58; the stepping motor 51 drives the inner pipeline 48 to move in the outer pipeline 45 through the lead screw 49, adjusts the positions of the outer through hole 57 and the inner through hole 58, enables the outer through hole 57 and the inner through hole 58 to be overlapped with each other, and ventilates.

According to the principle that ventilation is performed first, detection is performed later and then work is performed, the automatic air supply firstly ventilates a work area, and the safety of personnel during work is guaranteed.

When the automatic ventilation device runs automatically, people entering the device is detected through the human body sensing unit, air supply is started automatically, and during air supply, the ventilation device supplies air and changes air successively according to the sequence of the holes of the outer pipeline 45 and the holes of the inner pipeline 48, so that all open air supply can be realized, partial development air supply can also be realized, and foul air is discharged from the air outlet holes. Since CO2 is a common hazardous gas in tunnels, CO2 is heavier than air, and the vent holes are placed at the bottom. When the manual operation is carried out, the air feeder is started, and the manual air outlet hole is arranged at the open position to carry out air feeding operation.

The air supply outlet can realize air injection into the cable tunnel. The screw rod is dragged to rotate under the driving of the stepping motor controller. The scales are positioned on the manual disc and used for manually rotating the manual disc and determining the position of the hole when the air supply hole is positioned.

In the manual dial, manual rotation can adjust the relative positions of the outer tubing 45 and inner tubing 48 holes.

The screw rod is driven by the manual disc and the stepping motor to rotate and drive the inner pipeline to move left and right.

The human body sensing unit is placed at a tunnel entrance, and after the human body sensing unit detects that a person enters the tunnel, if the fan is not started, the human body sensing unit is automatically started immediately.

And the air outlet holes are used for discharging the foul air in the tunnel.

The air supply pipe supplies air to each of the sections separated by the firewall.

The inner pipeline is arranged in the pipeline in the outer pipeline, and a plurality of vent holes and lateral air grooves are formed in the upper surface of the inner pipeline. The boss 55 is matched with the groove 56 to ensure that the inner pipeline and the outer pipeline do not rotate relatively. The outer pipeline is a ventilation pipeline shell. And the blower of the air supply outlet blows air and then sends the air to the air supply outlet.

In the invention, the fire extinguishing device is provided with a suspension type dry powder tank 61, a fire extinguishing controller 64 and a starting module 65; the top of the suspension type dry powder tank 61 is provided with a hanging ring 62, and the suspension type dry powder tank 61 is hung on the top of the cable tunnel through the hanging ring 62; the bottom of the suspension type dry powder tank 61 is provided with a pressure gauge 60 and a temperature sensing glass ball 63; the fire extinguishing controller 64 is connected with a switch of the suspension type dry powder tank 61 through a starting module 65 and an electric starting signal line; the pressure gauge 62 is connected with the fire extinguishing controller 64 through a feedback signal line, and the fire extinguishing controller 64 acquires the pressure state of the suspension type dry powder tank 61 through the pressure gauge 62.

The fire extinguishing device is used for automatic/manual fire extinguishing inside the cable tunnel. The fire extinguishing controller sends out fire extinguishing control instructions to control the specific suspension type superfine dry powder tank to act to extinguish fire, has the functions of sensing the actual state of the suspension type superfine dry powder tank to act/not act, has a communication function, and can be connected with the whole control system, receive commands and send system states.

The starting module receives the instruction of the fire extinguishing controller and drives/transmits the action/state of the suspension type superfine dry powder tank.

The suspended superfine dry powder tank is a main fire extinguishing body and stores fire extinguishing medium.

The suspension type superfine dry powder tank is suspended at the position where fire is needed by the suspension ring. Typically placed in close proximity to the spacer cable.

The pressure gauge is used for sensing the internal pressure of the suspension type superfine dry powder tank crane.

The temperature sensing glass ball is heated to expand and crack when the temperature exceeds 68 ℃ after fire, and then the fire is extinguished. The electric starting signal wire receives the DC24V voltage of the starting module and starts fire extinguishing.

In the present invention, a preset number of monitoring controllers 70 and camera mechanisms 71 are provided in the monitoring area 10 of each cable tunnel; the camera mechanism 71 is provided with a fisheye camera 73, and the fisheye camera 73 is provided with a light-compensating lamp 74 and a fisheye lens 75; the electric heating pieces 76 are arranged around the fisheye lens 75; the electric heating sheet 76 is connected with a temperature controller 78; the temperature controller 78 and the fisheye camera 73 are respectively connected with the data processor through the monitoring controller 70.

The camera shooting mechanism 71 is also provided with a lens cleaning control module 79, an electromagnet 84 and an adjustable hanging rack 81; the fisheye camera 73 is connected with a wiping arc bracket 72, and the top end of the wiping arc bracket 72 is connected with a wiping head 77; one end of the electromagnet 84 is connected with the wiping arc support 72 through the movable joint 83 and the adjustable hanger 81, the electromagnet 84 receives a control instruction of the lens cleaning control module 79 to move, and according to the lever principle, the wiping head 77 is pushed to perform circular motion on the wiping arc support 72, and moves to the fisheye lens 75 to be in contact with the fisheye lens 75, so that impurities on the fisheye lens 75 are removed.

The monitoring controller 70 and the camera 71 are used for monitoring the internal state of the cable tunnel in real time.

The supervisory controller is used for gathering the data of camera, can be through wireless: WiFi, 5G, etc., wired: the coaxial cable, the network cable and the like are transmitted to the inspection system in real time, and can receive the inspection system command and control the camera to carry out lens self-cleaning.

The fisheye camera has wide-angle characteristic, and 360-degree inspection tour is realized. The fisheye lens is a lens of a camera. The lens cleaning control module is communicated with the monitoring controller, and can control the electric heating sheet to start/stop, and control the wiping head to wipe the fisheye lens.

The top end of the electromagnet is connected with the movable joint, the receiving lens cleaning control module acts, and the wiping head is pushed to perform circular motion according to the lever principle, so that wiping work on the fisheye lens is completed.

The adjustable hanger can adjust the up-and-down position of the fisheye camera, thereby adjusting the wiping force of the wiping head on the fisheye lens.

The temperature controller is connected in series in a loop of the electric heating sheet to limit the working current of the electric heating sheet, prevent over-temperature and play a role in protection.

The wiping arc bracket is arranged on the arc bracket outside the fisheye camera, the top of the wiping arc bracket is provided with a wiping head, the bottom of the wiping arc bracket rotates through a fixed shaft, and the bottom of the wiping arc bracket is provided with a movable joint connected with the top end of the electromagnet.

The wiping head is arranged at the top end of the wiping arc support, can rotate along with the wiping arc support, moves to the position of the fisheye lens to be in contact with the fisheye lens, and removes impurities on the fisheye lens to finish wiping.

The electric heating piece is fixed on the periphery of the fisheye lens, can generate heat, evaporates fog and water drops on the fisheye lens, and achieves cleaning.

The light filling lamp carries out the light filling for when shooting luminance is not enough, and the camera of being convenient for works in the tunnel of dark.

The monitoring component may be implemented in hardware, software, firmware, or any combination thereof. Various features are described as modules, units or components that may be implemented together in an integrated logic device or separately as discrete but interoperable logic devices or other hardware devices. In some cases, various features of an electronic circuit may be implemented as one or more integrated circuit devices, such as an integrated circuit chip or chipset.

If implemented in a monitoring component, the invention relates to an apparatus, which may be, for example, a processor or an integrated circuit device, such as an integrated circuit chip or chipset. Alternatively or additionally, if implemented in software or firmware, the techniques may implement a data storage medium readable at least in part by a computer, comprising instructions that when executed cause a processor to perform one or more of the above-described methods. For example, a computer-readable data storage medium may store instructions that are executed, such as by a processor.

Packaging material may be included in the monitoring assembly. The computer readable medium of data may include computer storage media such as Random Access Memory (RAM), Read Only Memory (ROM), non-volatile random access memory (NVRAM), Electrically Erasable Programmable Read Only Memory (EEPROM), flash memory, magnetic or optical data storage media, and the like. In some embodiments, an article of manufacture may comprise one or more computer-readable storage media.

The monitoring component may include one or more processors executing, for example, one or more Digital Signal Processors (DSPs), general purpose microprocessors, Application Specific Integrated Circuits (ASICs), Field Programmable Gate Arrays (FPGAs), or other equivalent integrated or discrete logic circuitry. Thus, the term "processor," as used herein, may refer to any of the foregoing structure or any other structure more suitable for implementing the techniques described herein. In addition, in some aspects, the functionality described in this disclosure may be provided in software modules and hardware modules.