CN110940381A - Cable pit environmental condition remote monitoring system - Google Patents
Cable pit environmental condition remote monitoring system Download PDFInfo
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- CN110940381A CN110940381A CN201911256684.0A CN201911256684A CN110940381A CN 110940381 A CN110940381 A CN 110940381A CN 201911256684 A CN201911256684 A CN 201911256684A CN 110940381 A CN110940381 A CN 110940381A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
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Abstract
The invention discloses a remote monitoring system for the environmental state of a cable trench, wherein a solar floor tile comprises a solar cell panel, a protective plate, an aluminum base, an anti-reverse resistor and a signal antenna, wherein the aluminum base is arranged in a foundation pit formed on a cement board at the top of the cable trench, the periphery of the aluminum base is fixedly connected with the cement board through screws, the surface of the aluminum base is provided with an installation groove for the arrangement of the solar cell panel, the surface of the solar cell panel covers the protective plate, and the solar cell panel is respectively connected with a precaution resistor and the signal antenna; the sensor module is connected to the bottom of the solar floor tile, is connected with the solar panel through a power line and a signal delay line, and is powered by the solar panel, and a plurality of sensors for monitoring the cable trench environment state are arranged on the lower bottom surface of the sensor module; the background system is connected with the solar floor tile through the signal antenna. The invention can realize long-term automatic monitoring and active alarm for the environmental state of the cable trench.
Description
Technical Field
The invention relates to a cable trench environmental state remote monitoring system used in the field of cable trench monitoring.
Background
In recent years, due to the gradual progress of urbanization in China, overhead power transmission does not have advantages in urban power transmission, urban attractiveness is affected, and the safety of residents of high-rise buildings can be endangered by high-voltage power transmission lines. In this case, transmission of electric power through underground cabling becomes the main means of urban power transmission. However, when the cable is laid in the cable duct, the environmental conditions in the cable duct will affect the transmission of the power. If the heat dissipation condition in the cable trench is not good, the temperature in the cable trench can be increased. The cable life is generally 15-20 years, and the spontaneous combustion temperature point of the insulating layer of the aged high-voltage transmission cable can be reduced, so that the risk of spontaneous combustion exists under the influence of high temperature. Meanwhile, water is easy to accumulate in the cable trench, the humidity is high, and the high-voltage transmission cable is soaked in water or is in an environment with overhigh humidity for a long time, so that the cable head breakage phenomenon is easy to occur, the cable insulation is damaged, and the safety of a transmission system is damaged. The decayed substances in the cable trench are easy to breed methane, and the accumulated substances can bring hidden danger to the personal safety of residents for a long time. The explosion accidents of a plurality of cable ducts occur in China, the main reasons of the accidents are that the concentration of methane accumulated in the cable ducts is too high, and the short circuit of a power transmission cable causes the ignition and explosion of the methane with too high concentration. Every year, a large amount of manpower and material resources are input into the electric power department of China to inspect the cable trench. Due to the structural particularity of the cable trench, the cable trench has the characteristics of narrow space, dense cables in the trench, wide geographical position distribution and the like, when the environmental state of the cable trench is checked, a heavy cable well cover or a cover plate on the cable trench needs to be opened and monitored by a monitoring instrument. The cable trench is checked one by depending on electric power personnel, and the checking work has certain difficulty, poor real-time performance, low efficiency and often can not find problems in time. Therefore, in order to enable the inspection personnel to know the states of the cable ducts at different positions in real time and timely deal with the problems in the cable ducts, it is necessary to establish a system for monitoring the environmental states of the cable ducts in real time.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides a cable trench environmental state remote monitoring system which can realize long-term automatic monitoring and active alarm of the cable trench environmental state.
One technical scheme for achieving the above purpose is as follows: a cable trench environmental state remote monitoring system comprises solar floor tiles arranged at the top of a cable trench, a sensor module connected with the solar floor tiles and a background monitoring system;
the solar floor tile comprises a solar panel, a protective plate, an aluminum base, an anti-reflection resistor and a signal antenna, wherein the aluminum base is arranged in a foundation pit formed in a cement board at the top of the cable trench;
the sensor module is connected to the bottom of the solar floor tile, is connected with the solar panel through a power line and a signal delay line, and is powered by the solar panel, and a plurality of sensors for monitoring the cable trench environment state are arranged on the lower bottom surface of the sensor module;
the background system is connected with the solar floor tiles through signal antennas to monitor the state of the cable duct, alarm and remind, monitor the state of equipment and display data.
Furthermore, each solar floor tile is provided with two solar cell panels and two protective plates, the protective plates are PVC protective plates, and each solar cell panel is connected with one anti-reflection resistor.
Still further, the control panel input voltage of the solar cell panel is 4.4V to 6V, the charging voltage is 4.2V, and the maximum charging current is 900 MA.
Further, the sensor module comprises a temperature and humidity sensor, a methane sensor, a carbon monoxide sensor, a hydrogen sulfide sensor, a water level sensor and a vibration sensor, wherein the temperature and humidity sensor, the methane sensor, the carbon monoxide sensor and the hydrogen sulfide sensor are provided with a downward convex independent gas bin.
Furthermore, the background monitoring system has the functions of data browsing, data searching, equipment map, equipment state query and alarm notification for users.
The cable trench environmental state remote monitoring system has the following advantages:
1. one sensor module integrates multiple sensors, has high integration degree, and is convenient to install, centrally supply power and maintain.
2. Due to the power supply of the solar panel, the long-term operation of the equipment can be kept, so that the online state in 24 hours can be kept, the environment can be monitored for many times in one day, problems can be found in time, and a basis is provided for technical staff to handle the problems.
3. The electric quantity is saved to the maximum extent to adapt to the problem of power supply shortage on site.
4. The design of water resistance and moisture resistance can ensure that the equipment can normally work under severe environment and ensure the accuracy of data as much as possible
5. And the system is connected with a background monitoring system, and the accumulation of a large amount of data can provide a data base for the introduction of artificial intelligence and big data analysis in the future.
Drawings
Fig. 1 is a schematic structural diagram of a cable trench environmental state remote monitoring system according to the present invention;
FIG. 2 is a top view of a solar tile of a cable trench environmental remote monitoring system according to the present invention;
fig. 3 is a cross-sectional view of a solar tile of a cable trench environmental state remote monitoring system according to the present invention.
Detailed Description
In order to better understand the technical solution of the present invention, the following detailed description is made by specific examples:
referring to fig. 1, the remote monitoring system for environmental status of cable trench according to the present invention includes a solar tile 1 disposed on the top of the cable trench, a sensor module 2 connected to the solar tile 1, and a background monitoring system.
Referring to fig. 2 and 3, the solar floor tile 1 includes a solar panel 11, a protective plate 12, an aluminum base 13, an anti-reflection resistor and a signal antenna. The aluminum base 13 is arranged in a foundation pit formed in the cement board 3 at the top of the cable trench, and the periphery of the aluminum base 13 is fixedly connected with the cement board 3 through screws. The surface of the aluminum base 13 is provided with two mounting grooves for the solar cell panel 11 to be arranged, the surface of the solar cell panel 11 is covered with the protection plate 12, and the protection plate 12 enables the surface of the solar floor tile 1 to be flush. The protection plate 12 is a PVC protection plate. The surface of the aluminum base 13 is provided with convex anti-skid lines in a casting mode. Each solar cell panel 11 is connected to an anti-reverse resistance. The input voltage range of the power energy battery plate 11 is 4.4V to 6V, the power energy battery plate is provided with a current blocking diode and a current detection resistor, the charging voltage is 4.2V, a low-current pre-charging mode is adopted to protect the battery when the battery voltage is lower, the maximum charging current is 900MA, the charging is in a constant current/constant voltage/constant temperature mode, the charging current can be maximized, the chip can be prevented from being overheated, the power voltage automatically enters a low-power-consumption sleep mode when the power voltage is powered off, and the power consumption is 5 uA. The signal antenna connection adopts a 6db full-band antenna. The size of the solar floor tile is as follows: 216 x 215 x 20 (unit mm).
The sensor module 2 is connected to the bottom of the solar floor tile 1, is connected with the solar panel through a power line and a signal delay line, and is powered through the solar panel. An SHT30 temperature and humidity sensor is used as a temperature and humidity detection sensor; the MQ5 semiconductor type sensor detects methane, and an alarm is given when the methane gas exceeds a certain concentration; the MQ9 semiconductor type sensor detects carbon monoxide, and alarms when the concentration of the carbon monoxide exceeds a specified range; the MQ136 semiconductor type sensor detects hydrogen sulfide, and gives an alarm when the concentration of the hydrogen sulfide gas exceeds a specified range; the ultrasonic sensor 22 is used as a water level sensor, the 3-axis acceleration sensor is used as a vibration sensor, the vibration or turnover of the solar floor tiles is monitored, when the peripheral vibration exceeds a specified range, an alarm is given, and when the turnover angle of the solar floor tiles is larger than 30 degrees, the alarm is given. Wherein the temperature and humidity sensor, the methane sensor, the carbon monoxide sensor and the hydrogen sulfide sensor are provided with a downward convex independent gas cabin 21.
The background system is connected with the solar floor tiles through the signal antenna, and is used for monitoring the state of the cable duct, warning, monitoring the state of equipment and displaying data. The background monitoring system has the functions of data browsing, data searching, equipment map, equipment state query and alarm notification for users.
It should be understood by those skilled in the art that the above embodiments are only for illustrating the present invention and are not to be used as a limitation of the present invention, and that changes and modifications to the above described embodiments are within the scope of the claims of the present invention as long as they are within the spirit and scope of the present invention.
Claims (5)
1. The utility model provides a cable pit environmental condition remote monitoring system, including setting up in the solar energy ceramic tile at cable pit top, with the sensor module that solar energy ceramic tile is connected, and backstage monitoring system, its characterized in that:
the solar floor tile comprises a solar panel, a protective plate, an aluminum base, an anti-reflection resistor and a signal antenna, wherein the aluminum base is arranged in a foundation pit formed in a cement board at the top of the cable trench;
the sensor module is connected to the bottom of the solar floor tile, is connected with the solar panel through a power line and a signal delay line, and is powered by the solar panel, and a plurality of sensors for monitoring the cable trench environment state are arranged on the lower bottom surface of the sensor module;
the background system is connected with the solar floor tiles through signal antennas to monitor the state of the cable duct, alarm and remind, monitor the state of equipment and display data.
2. The remote cable trench environment monitoring system according to claim 1, wherein two solar panels and two protective plates are disposed on each solar floor tile, the protective plates are PVC protective plates, and each solar panel is connected to one of the anti-reverse resistors.
3. The remote cable trench environment state monitoring system according to claim 2, wherein the control board input voltage of the solar panel is 4.4V to 6V, the charging voltage is 4.2V, and the maximum charging current is 900 MA.
4. The remote cable trench environment state monitoring system according to claim 1, wherein the sensor module comprises a temperature and humidity sensor, a methane sensor, a carbon monoxide sensor, a hydrogen sulfide sensor, a water level sensor and a vibration sensor, and the temperature and humidity sensor, the methane sensor, the carbon monoxide sensor and the hydrogen sulfide sensor have a downward convex independent gas bin.
5. The remote cable trench environment state monitoring system according to claim 1, wherein the background monitoring system has a data browsing function, a data searching function, an equipment map function, an equipment state query function and an alarm notification user function.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911256684.0A CN110940381A (en) | 2019-12-10 | 2019-12-10 | Cable pit environmental condition remote monitoring system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911256684.0A CN110940381A (en) | 2019-12-10 | 2019-12-10 | Cable pit environmental condition remote monitoring system |
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| CN110940381A true CN110940381A (en) | 2020-03-31 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201911256684.0A Pending CN110940381A (en) | 2019-12-10 | 2019-12-10 | Cable pit environmental condition remote monitoring system |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0199447A (en) * | 1987-10-09 | 1989-04-18 | Mitsubishi Cable Ind Ltd | Transmission line and distribution line monitoring system |
| CN205318592U (en) * | 2015-12-03 | 2016-06-15 | 国网新疆电力公司乌鲁木齐供电公司 | Cable pit monitoring devices based on GPRS network transmission |
| CN107465164A (en) * | 2017-09-04 | 2017-12-12 | 深圳供电局有限公司 | Cable channel cover plate |
| CN108631251A (en) * | 2018-06-14 | 2018-10-09 | 深圳市国电投资有限公司 | A kind of photovoltaic solar cover board |
| CN109341756A (en) * | 2018-09-12 | 2019-02-15 | 国网安徽省电力有限公司检修分公司 | Cable duct of substation environmental monitoring system |
-
2019
- 2019-12-10 CN CN201911256684.0A patent/CN110940381A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0199447A (en) * | 1987-10-09 | 1989-04-18 | Mitsubishi Cable Ind Ltd | Transmission line and distribution line monitoring system |
| CN205318592U (en) * | 2015-12-03 | 2016-06-15 | 国网新疆电力公司乌鲁木齐供电公司 | Cable pit monitoring devices based on GPRS network transmission |
| CN107465164A (en) * | 2017-09-04 | 2017-12-12 | 深圳供电局有限公司 | Cable channel cover plate |
| CN108631251A (en) * | 2018-06-14 | 2018-10-09 | 深圳市国电投资有限公司 | A kind of photovoltaic solar cover board |
| CN109341756A (en) * | 2018-09-12 | 2019-02-15 | 国网安徽省电力有限公司检修分公司 | Cable duct of substation environmental monitoring system |
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