CN107561029B - SF6 leakage online monitoring system based on infrared laser imaging trolley - Google Patents
SF6 leakage online monitoring system based on infrared laser imaging trolley Download PDFInfo
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Abstract
SF based on infrared laser imaging dolly6The leakage on-line monitoring system comprises an infrared laser imaging trolley, a GPS satellite, a wireless base station, the Internet, a server, a database and an information processing center; the GPS satellite provides the position information of the trolley; the trolley uploads the monitoring information to a server through a wireless base station and the Internet; the server stores the monitoring information in a database; the information processing center obtains the monitoring information in real time through the server and analyzes the monitoring information to obtain SF6Concentration and location of gas leaks. Trolley for monitoring SF in closed combined electrical apparatus in transformer substation and power plant6Leakage of gas. The trolley comprises a power supply module, a sensor module, a driving module, a GPS module, an MCU module and a communication module; sensor module for sensing SF6Leakage information, ambient temperature and humidity, and trolley travel state information. The invention has SF6Gas leakage detection, GPS positioning, wireless communication, background information processing and the like.
Description
Technical Field
The invention relates to SF6Monitoring and wireless communication field, more specifically relates to an SF based on infrared laser imaging dolly6Leakage on-line monitoring system.
Background
Along with the development of economic society, the demand of civil electricity is gradualSF with high rising, small volume and high reliability6The closed combined electrical equipment is widely applied to the power grid. SF6The gas leakage affects the normal operation of the power equipment, and can also cause serious greenhouse effect on SF6The online monitoring of gas leakage is very important. Application No. 201510474286.1, publication No. 105004843A SF6On-line monitoring system invents an SF6On-line monitoring system for indoor SF of community substation type only6And (5) online monitoring. The invention provides an SF (sulfur hexafluoride) based mobile platform and detection method for detecting gas leakage of transformer substation with application number of 201610046774.7 and publication number of 105486459A6The monitoring device has an information processing function and realizes information output through the display screen. Substation SF with application number of 201520982373.3 and publication number of 205192944U6An on-line gas monitor6Gas on-line monitoring device for extracting SF-containing gas from transformer substation6The outside air of the gas equipment is detected to judge SF6Leakage of gas.
The three kinds of SF6The corresponding limitations of the gas leakage online monitoring device are respectively strict in requirements on detection environment, high in hardware requirements and close in detection distance requirements.
Disclosure of Invention
The invention aims to solve the problem of overcoming the defects of the background technology and providing the SF based on the infrared laser imaging trolley with low hardware cost and long detection distance6Leakage on-line monitoring system.
The technical scheme adopted for solving the technical problems is as follows:
SF based on infrared laser imaging dolly6The leakage on-line monitoring system is characterized by comprising an infrared laser imaging trolley (hereinafter referred to as trolley), a GPS satellite, a wireless base station, the Internet, a server, a database and an information processing center.
The GPS satellite is in one-way communication with the trolley; and a GPS module arranged in the trolley calculates the position of the trolley according to the information sent by the GPS satellite.
The trolley and the internet are in two-way communication through a wireless base station; the internet is in two-way communication with the server; the server is in two-way communication with the database. The car will monitor the information (SF)6Leakage detection information, ambient temperature and humidity, trolley traveling state and position information) are packaged into a data format conforming to the wireless communication standard of the trolley built-in communication module according to the TCP/IP related protocol standard, and the data format is transmitted to the server by the communication module through the wireless base station and the Internet. In the invention, the communication module arranged in the trolley can select a GSM (global system for mobile communications), a 3G/4G chip or an NB-IoT (NB-IoT) chip according to the cost requirement, and correspondingly packages the monitoring information into a data format conforming to GPRS (general packet radio service), WCDMA (wideband code division multiple Access)/LET (Low-level emission test) or 3GPP (3 GPP) standards. The server stores the monitoring information in a database.
The information processing center is in bidirectional communication with the server; the information processing center reads the monitoring information transmitted by the trolley in real time and analyzes the SF6Concentration and location of gas leaks.
The trolley comprises a power supply module, a sensor module, a GPS module, an MCU module, a communication module and a driving module.
The power module adopts a lithium battery and is used for providing energy for the sensor module, the GPS module, the MCU module, the communication module and the driving module.
The sensor module is bidirectionally connected with the MCU module, the MCU module wakes up the sensor module and configures related parameters, and the sensor module is used for sensing SF6Leakage information, ambient temperature and humidity, and vehicle travel status, and use of SF6And the leakage detection information, the ambient temperature and humidity and the trolley traveling state information are transmitted to the MCU module.
The driving module is connected with the MCU module in a one-way mode and used for providing power for the trolley to move.
The GPS module is in bidirectional connection with the MCU module, the MCU module wakes up the GPS module and configures related parameters, and the GPS module calculates the position of the trolley according to information sent by a GPS satellite and transmits the position to the MCU module.
The communication module is connected with the MCU module in a two-way mode, the MCU module performs awakening operation on the communication module and configures related parameters, and the communication module uploads monitoring information processed by the MCU module.
Further, a sensor module in the trolley comprises an infrared laser imager, a temperature and humidity sensor and an acceleration sensor.
The infrared laser imager is used for sensing SF6Leakage information;
the temperature and humidity sensor is used for sensing temperature and humidity information of the surrounding environment;
the acceleration sensor is used for sensing the travelling state information of the trolley.
Without loss of generality, the infrared laser imager, the temperature and humidity sensor and the acceleration sensor are respectively a TG-20 infrared laser imager, a TI HDC1000 chip and an ADXL346 chip.
Furthermore, a driving module in the trolley adopts a direct current motor.
And the direct current motor is unidirectionally connected with the MCU module. The DC motor power is 400W. Without loss of generality, the direct current motor adopts ZDBLD400-24 GU-30S.
Furthermore, the GPS module in the trolley comprises a GPS chip and an antenna arranged on the GPS chip. And the GPS chip is in bidirectional connection with the MCU module.
Without loss of generality, the working frequency of the GPS antenna is 1575 MHz; the GPS chip adopts a UBLOX NEO-6M chip.
Further, the communication module in the trolley comprises a communication chip and an antenna arranged on the communication chip. The communication chip is connected with the MCU module in a bidirectional mode.
Without loss of generality, the wireless communication chip adopts a communication MD231 chip which is a GSM chip; the GSM antenna has an operating frequency of 900 MHz. The 3G/4G chip, the NB-IoT chip and the corresponding working frequency band antenna can also be applied according to actual needs.
The method for analyzing the SF6 gas leakage concentration and position by the information processing center is as follows: the television image of SF6 gas leakage is obtained through SF6 leakage information sensed by an infrared laser imager of a sensor module of the trolley, the television image is corrected according to ambient temperature and humidity information sensed by a temperature and humidity sensor, infrared laser can be absorbed by a gas cloud formed by SF6 gas leaked by SF6 closed combination equipment near the SF6 closed combination equipment, a dark area is formed on the obtained SF6 gas leakage image, and the concentration and the position of SF6 gas leakage can be obtained according to the depth of the dark area and the position of the dark area.
The invention has SF6Gas leakage detection, GPS positioning, wireless communication, background information processing and the like. The invention can be applied to indoor closed type combined electrical apparatus SF6Gas leakage monitoring, and can be applied to SF in closed combined electrical appliances in transformer substations and power plants6And (5) monitoring the leakage of the gas. All monitoring information is processed by the information center in a unified mode, and the MCU only encodes and packs the monitoring information, so that the overall hardware cost is low. Monitoring SF with infrared laser imager6Gas leakage, and can realize remote monitoring of SF6The gas leaks.
Drawings
FIG. 1 shows an SF of the infrared laser imaging-based trolley of the invention6The structure schematic diagram of the leakage on-line monitoring system;
FIG. 2 shows SF according to the present invention6The structure schematic diagram of a trolley of the leakage online monitoring system.
FIG. 3 is a schematic structural view of a sensor module of the cart shown in FIG. 2;
FIG. 4 is a schematic structural view of a drive module of the cart shown in FIG. 2;
FIG. 5 is a schematic diagram of the GPS module of the cart shown in FIG. 2;
fig. 6 is a schematic structural diagram of a communication module of the cart shown in fig. 2.
Detailed Description
The invention is further illustrated by the following figures and examples.
Referring to FIG. 1, the SF of the present invention using an infrared laser imaging based cart as described above6The online leakage monitoring system comprises: the system comprises an infrared laser imaging trolley (hereinafter, the trolley is referred to as a trolley) U0, a GPS satellite U1, a wireless base station U2, an Internet U3, a database U4, a server U5 and an information processing center U6.
The GPS satellite U1 is in one-way communication with the trolley U0; and the GPS module arranged in the trolley calculates the position of the trolley U0 according to the information sent by the GPS satellite U1.
The trolley U0 and the Internet U3 are in two-way communication through a wireless base station U2; the internet U3 is in two-way communication with the server U5; the server U5 is in two-way communication with the database U4. The trolley U0 monitors information (SF)6Leakage detection information, ambient temperature and humidity, trolley traveling state information and position information) are packaged into a data format conforming to the wireless communication standard of the trolley built-in communication module according to the TCP/IP related protocol standard, and the data format is transmitted to the server U5 by the built-in communication module U06 of the trolley U0 through the wireless base station U2 and the Internet U3 and stored in the database U4. In the invention, a communication module U06 arranged in the trolley U0 can select a GSM chip, a 3G/4G chip or an NB-IoT chip according to the cost requirement, and correspondingly packages monitoring information into a data format conforming to GPRS, WCDMA/LET or 3GPP standards;
the information processing center U6 is in bidirectional communication with the server U5; the information processing center U6 reads the monitoring information transmitted by the trolley U0 in real time and analyzes SF6The concentration and location of the leak.
Information processing center U6 analyzes SF6The principle of gas leakage concentration and location is as follows: SF sensed by infrared laser imager U021 of sensor module U02 of cart U06Leakage information derivation SF6Gas leaked television picture, leaked SF6The infrared laser light is absorbed by the gas cloud formed by the gas in the vicinity of the enclosed cluster tool, and the resulting SF is obtained6Forming dark area on the TV image with gas leakage, and obtaining SF according to the depth and position of the dark area6Concentration and location of gas leaks.
The infrared laser imaging principle is applied to related instrument devices, and can be seen in laser imaging SF6 leakage positioning device with the application number of 200710045856.0, sulfur hexafluoride laser imaging leak detector with the application number of 200810059532.7 and the like.
The adverse environment (rain, snow and hail) has obvious influence on the imaging effect of the infrared laser imager, and SF with dark space is obtained6After the TV picture of gas leakage, according to the depth of dark space and that of dark spacePosition analysis SF6Before the concentration and the position of gas leakage, the television image needs to be corrected according to the ambient temperature and humidity information sensed by the temperature and humidity sensor U022, namely whether the television image is displayed is determined according to the ambient temperature and humidity information sensed by the temperature and humidity sensor U022, which specifically comprises the following steps:
setting the environment temperature as T ℃ and the humidity as RH% (relative humidity), and when the conditions that T is more than or equal to-10 ℃ and less than or equal to 50 ℃ and RH is less than or equal to 60% are met, normally displaying the television image by the information processing center U6; otherwise, only the temperature T ℃ and the humidity RH% are displayed, and the television image is not displayed normally.
Referring to FIG. 2, the SF of the present invention6The trolley U0 of the leakage online monitoring system comprises a power supply module U01, a sensor module U02, a driving module U03, an MCU module U04, a GPS module U05 and a communication module U06.
The power module U01 powers the sensor module U02, the driver module U03, the MCU module U04, the GPS module U05, and the communication module U06. The power module U01 is a lithium battery.
The sensor module U02 is bidirectionally connected with the MCU module U04, and the MCU module U04 wakes up the sensor module U02 and configures related parameters; sensor module U02 for sensing SF6Leakage information, ambient temperature and humidity and the vehicle traveling state, and sensing data are transmitted to the MCU module U04.
The driving module U03 is in one-way connection with the MCU module U04, and the driving module U03 provides trolley advancing power;
the GPS module U05 is bidirectionally connected with the MCU module U04, the MCU module U04 wakes up the GPS module U05 and configures related parameters, and the GPS module U05 calculates the position of the trolley according to information sent by the GPS satellite U1 and transmits the position to the MCU module U04.
The communication module U06 is bidirectionally connected with the MCU module U04, the MCU module U04 wakes up the communication module U06 and configures related parameters, and the communication module U06 uploads monitoring information processed by the MCU module U04.
Referring to fig. 3, the sensor module U02 in the cart U0 includes an infrared laser imager U021, a temperature and humidity sensor U022, and an acceleration sensor U023. Infrared laser imager U021 for closed type combined electrical apparatus SF6Gas (es)And leakage monitoring is carried out, wherein the temperature and humidity sensor U021 is used for sensing temperature and humidity information of the surrounding environment, and the acceleration sensor U023 is used for sensing the information of the running state of the vehicle.
Without loss of generality, the infrared laser imager U021, the temperature and humidity sensor U022 and the acceleration sensor U023 of the invention respectively adopt a TG-20 infrared laser imager, a TI HDC1000 chip and an ADXL346 chip.
The infrared laser imager U021 and the MCU module U04 are communicated in a bidirectional mode. Temperature and humidity sensor U022 and acceleration sensor U023 both pass through I2The C bus is bidirectionally connected with the MCU module U04. The MCU module U04 configures related parameters for the infrared laser imager U021, and the infrared laser imager U021 transmits SF6The gas leakage information is transmitted to the MCU module U04; MCU module U04 awakens the operation and configures relevant parameter to temperature and humidity sensor U022 and acceleration sensor U023, and temperature and humidity sensor U022 and acceleration sensor U023 convey ambient temperature and humidity information and the dolly state information of marcing to MCU module U04.
The MCU module U04 of dolly U0 controls the data acquisition of dolly U0 according to the vehicle state information of marcing that acceleration sensor U023 perception, and the concrete method is: when the trolley is static, the infrared laser imager U021 and the temperature and humidity sensor U022 work; when the trolley advances, the infrared laser imager U021 and the temperature and humidity sensor U022 do not work.
Referring to fig. 4, a drive module U03 of the cart U0 is a dc motor U031. The power of the direct current motor U031 is 400W. Without loss of generality, the direct current motor U031 adopts ZDBLD400-24 GU-30S.
Referring to FIG. 5, GPS module U05 in cart U0 includes GPS chip U051 and antenna U052. The working frequency of the GPS antenna U052 is 1575 MHz. Without loss of generality, the GPS chip U051 adopts a UBLOX NEO-6M chip.
Referring to FIG. 6, the communication module U06 of cart U0 includes a communication chip U061 and an antenna U062. Without loss of generality, the wireless communication chip U061 adopts a communication MD231 chip which is a GSM chip; the GSM antenna U062 has 900MHz of working frequency. The 3G/4G chip, the NB-IoT chip and the corresponding working frequency band antenna can also be applied according to actual needs.
SF of the present invention6The trolley of the leakage online monitoring system has the following functions:
(1) because the cart integrates a GPS module, the cart can be used to obtain cart position information in real time for SF6And analyzing leakage position information.
(2) Because the trolley integrates the sensor module, the trolley can be used for monitoring the closed combined electrical apparatus SF in the transformer substation and the power plant in real time6The gas leaks.
(3) Because the trolley integrates the communication module, the trolley can upload monitoring information in real time.
(4) Because the trolley is integrated with the driving module, the trolley is driven by the direct current motor to move, and the closed type combined electrical appliance SF can be controlled in all directions6Gas leakage is monitored.
Various modifications and variations of the present invention may be made by those skilled in the art, and they are also within the scope of the present invention provided they are within the scope of the claims of the present invention and their equivalents.
What is not described in detail in the specification is prior art that is well known to those skilled in the art.
Claims (4)
1. SF based on infrared laser imaging dolly6The leakage on-line monitoring system is characterized by comprising an infrared laser imaging trolley, a GPS satellite, a wireless base station, the Internet, a server, a database and an information processing center, wherein the infrared laser imaging trolley is called a trolley for short;
the GPS satellite is in one-way communication with the trolley; a GPS module arranged in the trolley calculates the position of the trolley according to information sent by a GPS satellite;
the trolley is in two-way communication with the Internet through the wireless base station, and the Internet is in two-way communication with the server; the server is in bidirectional communication with the database; the trolley will monitor the information: SF6The leakage detection information, the ambient temperature and humidity, the trolley advancing state and the position information are packaged into the wireless communication standard which accords with the communication module built in the trolley according to the TCP/IP related protocol standardThe data format is transmitted to the server by the communication module through the wireless base station and the internet; the server stores the monitoring information in a database;
the information processing center is in bidirectional communication with the server; the information processing center reads the monitoring information transmitted by the trolley in real time and analyzes the SF6The concentration and location of gas leaks;
the trolley comprises a power supply module, a sensor module, a GPS module, an MCU module, a communication module and a driving module;
the power supply module is used for supplying energy to the sensor module, the GPS module, the MCU module, the communication module and the driving module;
the sensor module is bidirectionally connected with the MCU module, the MCU module wakes up the sensor module and configures related parameters, and the sensor module is used for sensing SF6Leakage information, ambient temperature and humidity, and vehicle travel status, and use of SF6The leakage detection information, the ambient temperature and humidity and the trolley traveling state information are transmitted to the MCU module;
the driving module is connected with the MCU module in a one-way mode and is used for providing trolley advancing power;
the GPS module is in bidirectional connection with the MCU module, the MCU module performs awakening operation on the GPS module and configures related parameters, and the GPS module calculates the position of the trolley according to the GPS satellite sending information and transmits the position to the MCU module;
the communication module is connected with the MCU module in a bidirectional mode, the MCU module performs awakening operation on the communication module and configures related parameters, and the communication module uploads monitoring information processed by the MCU module;
the sensor module comprises an infrared laser imager, a temperature and humidity sensor and an acceleration sensor;
the infrared laser imager is used for sensing SF6Leakage information;
the temperature and humidity sensor is used for sensing temperature and humidity information of the surrounding environment;
the acceleration sensor is used for sensing the travelling state information of the trolley;
information processing center analysis SF6Principle of gas leakage concentration and positionThe following were used: SF sensed by infrared laser imager U021 of sensor module U02 of cart U06Leakage information derivation SF6Gas leaked television picture, leaked SF6The infrared laser light is absorbed by the gas cloud formed by the gas in the vicinity of the enclosed cluster tool, and the resulting SF is obtained6Forming dark area on the TV image with gas leakage, and obtaining SF according to the depth and position of the dark area6Concentration and location of gas leaks;
the adverse environment affects the imaging effect of the infrared laser imager, and SF with dark space is obtained6After the TV image of gas leakage, SF is analyzed according to the depth of the dark area and the position of the dark area6Before the concentration and the position of gas leakage, whether a television image is displayed or not is determined according to ambient temperature and humidity information sensed by a temperature and humidity sensor, and the method specifically comprises the following steps:
setting the environment temperature as T ℃ and the humidity as RH%, and when the T is more than or equal to-10 ℃ and less than or equal to 50 ℃ and the RH is less than or equal to 60%, the information processing center can normally display the television image; otherwise, only the temperature T ℃ and the humidity RH% are displayed, and the television image is not displayed normally.
2. SF according to claim 16The leakage on-line monitoring system is characterized in that the driving module adopts a direct current motor; the direct current motor provides power for the trolley to move forward.
3. SF according to claim 16The leakage on-line monitoring system is characterized in that the communication module comprises a communication chip and an antenna arranged on the communication chip, and the communication chip is in two-way connection with the MCU module.
4. SF according to claim 16The leakage on-line monitoring system is characterized in that the GPS module comprises a GPS chip and an antenna arranged on the GPS chip, and the GPS chip is bidirectionally connected with the MCU module; the working frequency of the GPS antenna is 1575 MHz.
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| CN108919729A (en) * | 2018-08-29 | 2018-11-30 | 广州巨时信息科技有限公司 | A kind of Cold Chain Logistics monitoring system |
| CN109632193A (en) * | 2018-12-13 | 2019-04-16 | 广西电网有限责任公司电力科学研究院 | A kind of field working conditions complexity infrared imaging detection background board and its application method |
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