CN115824304A - Cable intermediate joint running state online monitoring system and online monitoring method thereof - Google Patents
Cable intermediate joint running state online monitoring system and online monitoring method thereof Download PDFInfo
- Publication number
- CN115824304A CN115824304A CN202211550574.7A CN202211550574A CN115824304A CN 115824304 A CN115824304 A CN 115824304A CN 202211550574 A CN202211550574 A CN 202211550574A CN 115824304 A CN115824304 A CN 115824304A
- Authority
- CN
- China
- Prior art keywords
- monitoring
- cable intermediate
- cable
- signal
- intermediate joint
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Landscapes
- Alarm Systems (AREA)
Abstract
The invention discloses an online monitoring system for the running state of a cable intermediate joint, which comprises a sensor unit, a monitoring processing terminal for the running state of the cable intermediate joint, a 5G virtual private network and a monitoring master station for power supply company equipment. The invention also discloses an online monitoring method of the online monitoring system for the running state of the cable intermediate joint. Compared with the prior art, the invention utilizes the operator wireless network, the enterprise virtual private network and the 5G network slicing technology, simultaneously cooperates with the security authentication encryption technology, and has the advantages of high security, high reliability, high speed, strong penetrating power, convenient implementation and the like compared with other communication technologies. According to the invention, the high-speed low-power-consumption enhanced micro control unit is adopted, and meanwhile, the sleep awakening power-down control strategy and other control strategies are matched, so that the power consumption of the terminal can be greatly reduced, the terminal is powered by a high-energy density lithium battery, the use requirement of complex underground severe environment can be met, the terminal can continuously work for more than 5 years, and the technical difficulties of limited electricity taking, short service life and the like of underground equipment are effectively solved.
Description
Technical Field
The invention belongs to the field of power equipment state monitoring, and particularly relates to an online monitoring system for the running state of a cable intermediate joint. The invention also relates to a monitoring method of the cable intermediate joint running state online monitoring system.
Background
With the continuous promotion of the urbanization construction process, the cabling rate of a power supply line is continuously improved, the power cable becomes the main artery of urban power supply and is used as an important power transmission carrier, and the quality and the state of the power cable have very important significance on the reliability of power supply. The on-line monitoring of the running condition of the cable can evaluate the running state of the cable in advance and prevent the cable from fault to cause large loss. The key to realizing the online monitoring of the cable running state is to obtain the change of the cable running parameters. The distribution cable is usually laid in an urban underground pipe well along the road direction, the long-distance cable is formed by connecting a plurality of sections of cables, a cable intermediate joint is arranged in every 300-500 m, and the cable intermediate joint can be insulated, aged or damaged due to various reasons such as manufacturing quality, external force influence, environmental corrosion and the like in the long-term operation process, so that the temperature of the cable joint can be abnormally changed, and therefore, the temperature of the cable joint is usually used as an important parameter for measuring the operation state of the cable. Because the number of the cable intermediate joints is large, the operation state parameter information of the cable intermediate joints needs to be acquired and communicated over a long distance or underground, and the cable used for wired communication (such as a secondary cable and optical fiber temperature measurement) is high in cost and has an influence on operation and maintenance, so that wireless communication becomes a necessary choice. However, the operation state of the cable intermediate joint is obtained by adopting a conventional wireless communication mode, and the accurate real-time supply of the operation state information resources of the cable intermediate joint is greatly restricted by a plurality of restrictive factors such as high power consumption, weak penetrating power, high operation and maintenance difficulty, no security guarantee and the like, so that the real-time monitoring of the operation state of the cable intermediate joint, the accurate fault positioning and the quick operation and maintenance movement are difficult to realize.
Disclosure of Invention
The invention provides an online monitoring system for the running state of a cable intermediate joint, which realizes real-time monitoring and active early warning of running abnormity of the running state of the cable intermediate joint by the technical principles of sensor-based, signal acquisition and processing, 5G virtual private network-based remote communication and security authentication encryption, solves the difficult problem that the running state of the underground cable intermediate joint is difficult to monitor, helps distribution network operation and maintenance personnel to find and eliminate fault hidden dangers in time, and improves the handling efficiency of the fault hidden dangers and the power supply reliability.
In order to solve the above problems, the present invention provides the following technical solutions,
an on-line monitoring system for the running state of a cable intermediate joint comprises a sensor unit, a monitoring and processing terminal for the running state of the cable intermediate joint, a 5G virtual private network and a monitoring master station for power supply company equipment,
the sensor unit collects monitoring parameters of a cable intermediate joint in a cable joint well in real time and sends the monitoring parameters to a cable intermediate joint operation state monitoring processing terminal;
the sensor unit comprises a temperature sensor and a temperature and humidity sensor,
the temperature sensor is directly attached to the surface of the insulating sheath of the cable intermediate joint and senses the temperature signal of the cable intermediate joint in real time;
the humidity sensor and/or the temperature and humidity sensor are/is suspended in the cable joint well, and environmental temperature and humidity signals in the cable joint well are sensed in real time;
the monitoring parameters comprise a temperature signal of a cable intermediate joint and an environment temperature and humidity signal in a cable joint well;
the monitoring and processing terminal for the running state of the cable intermediate joint stores, processes, calculates and analyzes the collected monitoring parameters, and starts an alarm signal when the monitoring parameters exceed a set threshold value;
the 5G virtual private network takes a telecom operator 5G network as a platform, a virtual private network comprising a plurality of cable intermediate connector operation state monitoring and processing terminals and a power supply company equipment monitoring master station is established, the cable intermediate connector operation state monitoring and processing terminals establish bidirectional communication links with the power supply company equipment monitoring master station through the 5G virtual private network, and monitoring parameters and/or alarm signals are sent to the power supply company equipment monitoring master station;
the power supply company equipment monitoring master station receives monitoring parameters and/or alarm signals, carries out coding and decoding processing on the received monitoring parameters and/or alarm signals, and displays the monitoring parameters and/or alarm signals to a dispatching attendant through sound, graphics and/or an alarm window so as to achieve the purpose of monitoring the running state of the cable intermediate joint; the power supply company equipment monitoring master station is provided with a storage database, monitoring parameters and/or alarm signals are stored in the storage database after being coded and decoded, and operation such as running data analysis, data statistics, historical alarm query and the like is supported.
In order to obtain better technical effect, the system also comprises a safety isolation device and a mobile client of the mobile phone, wherein the safety isolation device ensures that the internal network of the system is not directly or indirectly connected with a public network, thereby protecting internal network equipment and a communication link from being attacked and monitored by the network from the Internet and ensuring that electric power secret-related information is not leaked and damaged;
the mobile client of the mobile phone is connected with a power supply company equipment monitoring master station through the Internet and checks monitoring parameters and/or alarm signals;
the power supply company equipment monitoring main station is connected with the APP interface server through the safety isolation device, and transmits monitoring parameters and/or alarm signals to the mobile phone client side safely for display.
For better technical effect, the safety isolation device is Nanruisysskepper-2000.
In order to obtain a better technical result,
in order to obtain better technical effect, the operation state monitoring and processing terminal of the cable intermediate connector comprises a shell, a sensor unit signal input end arranged on the side wall of the shell, a signal acquisition and processing unit, a micro control unit and a battery power supply unit, wherein the signal acquisition and processing unit, the micro control unit and the battery power supply unit are arranged in the shell;
the shell is used for protecting internal circuit elements, preventing external force damage and preventing water and moisture;
one end of the signal input end of the sensor unit is connected with the sensor unit through a signal wire, and the other end of the signal input end of the sensor unit is connected with the signal acquisition and processing unit;
the signal acquisition and processing unit is used for preprocessing the monitoring parameter analog signals output by the sensor unit, converting the monitoring parameter analog signals into monitoring parameter digital signals and transmitting the monitoring parameter digital signals to the micro control unit;
the micro control unit reads the monitoring parameter digital signal, judges whether the running state of the cable intermediate joint is abnormal or not by comparing the monitoring parameter digital signal with a preset parameter, and sends an abnormal running state alarm signal if the running state is abnormal; sending the read monitoring parameter digital signal and/or the running state abnormal alarm signal to a 5G virtual private network;
the signal acquisition processing unit is in bidirectional communication connection with the micro control unit, and the micro control unit controls the signal acquisition processing unit to acquire monitoring signals by using an AT instruction to acquire monitoring parameters and uploads the monitoring parameters to the micro control unit; the micro control unit is in bidirectional communication connection with the 5G communication module, controls the 5G communication module by using an AT command, uploads the acquired signal to the monitoring master station and receives information transmitted by the monitoring master station through the 5G communication module;
the battery power supply unit is used for providing a working power supply for the sensor unit, the signal acquisition and processing unit, the micro control unit and the 5G communication module.
In order to obtain better technical effect, the shell is made of ABS flame retardant material, and the whole machine meets IP 67-level waterproof and moistureproof design so as to meet the working requirements of cable wells and cable trenches in severe environments.
In order to obtain a better technical effect, the micro control unit is a high-speed low-power-consumption enhanced single chip microcomputer GD32F103, the single chip microcomputer is internally provided with a CPU and resources such as a memory RAM, a ROM, a FLASH and the like, and the micro control unit is provided with a normal mode, a power-down mode, an idle mode and a sleep mode.
In order to obtain better technical effect, the battery power supply unit adopts a high-energy density lithium battery to supply power.
In order to obtain a better technical effect, the cable intermediate joint operation state monitoring processing terminal further comprises a security authentication encryption module, the security encryption module is used for encrypting and decrypting a transmission signal of the micro control unit, and the micro control unit is encrypted by the security authentication encryption module before sending data to the 5G virtual private network; and the micro control unit decrypts the data sent by the 5G virtual private network through a security authentication encryption module before receiving the data.
In order to obtain a better technical effect, the security authentication encryption module is an industrial grade SC1161Y encryption chip, and single-phase identity authentication and message integrity protection are realized by adopting an asymmetric key algorithm based on a scheduling certificate.
In order to obtain better technical effect, the operation state monitoring processing terminal of the cable intermediate joint further comprises a timer module,
the timer module carries out timing setting to the monitoring processing terminal, and every interval time T storage once the sensor unit gathers cable joint well cable intermediate head's monitoring parameter in real time, when the accumulative total time reaches N interval time T of setting for, once only sends the monitoring parameter of N interval time T of storage to power supply company equipment monitoring main website.
In order to obtain better technical effect, the 5G virtual private network comprises a 5G communication module and a wireless network base station;
the 5G communication module is responsible for monitoring the sending and data receiving of parameter digital signals and/or abnormal operation state alarm signals, and realizes data transmission with a wireless network base station;
the wireless network base station establishes a virtual private network comprising a plurality of cable intermediate joint running state monitoring and processing terminals and a power supply company equipment monitoring master station, and the cable intermediate joint running state monitoring and processing terminals establish a bidirectional communication link with the power supply company equipment monitoring master station through the 5G virtual private network and send monitoring parameters and/or alarm signals to the power supply company equipment monitoring master station.
The invention also discloses an online monitoring method of the online monitoring system for the running state of the cable intermediate joint, which comprises the following steps,
(1) The sensor unit collects a running temperature signal of a cable intermediate joint and an environment temperature and humidity signal of a cable joint well in real time;
(2) A signal acquisition processing unit of the cable intermediate joint operation state monitoring processing terminal converts an analog signal output by the sensor unit into a digital signal and sends the digital signal to a micro control unit;
(3) The micro control unit compares the current temperature value of the cable joint, the short-time temperature sudden change value, the difference value of the environmental temperature and a preset value, judges whether the current temperature value exceeds a set threshold value, and if the current temperature value exceeds the threshold value, the step (4) is carried out; if the threshold value is not exceeded, entering the step (6);
(4) Generating an abnormal operation state alarm signal;
(5) Sending an abnormal operation state alarm signal to the 5G virtual private network through a 5G communication module of the 5G virtual private network, and receiving the abnormal operation state alarm signal of the 5G virtual private network by a power supply company equipment monitoring master station;
(6) The monitoring processing terminal is set regularly, and the sensor unit collects monitoring parameters of a cable intermediate joint in a cable joint well in real time once every interval T;
(7) Judging whether the accumulated time reaches the set N interval times T or not, if so, entering the step (8), timing again, and if not, entering the step (3);
(8) Generating stored running telemetry data of the cable intermediate joint with N intervals T;
(9) And sending the running telemetry data of the cable intermediate joints with N intervals T to the 5G virtual private network.
In order to obtain better technical effect, before the step (5) and/or the step (9), the 5G communication module of the 5G virtual private network is awakened; and (5) after the step (5) and/or the step (9), automatically converting the 5G communication module into a sleep mode, and returning to the step (3).
Compared with the prior art, the invention has the following advantages and beneficial effects:
1. the invention realizes the online monitoring of the running state of the cable intermediate joint based on the 5G communication virtual private network, utilizes the operator wireless network, the enterprise virtual private network and the network slicing technology of the 5G, and simultaneously cooperates with the security certification encryption technology, compared with other communication technologies such as optical fiber communication, carrier communication, zigbee, loRa, GPRS and the like, the invention has the advantages of high safety, high reliability, high speed, strong penetrating power, convenient implementation and the like, and solves the problems of real-time monitoring of the running state of the underground cable intermediate joint and safe and efficient signal transmission for a long time.
2. The operation state monitoring and processing terminal of the cable intermediate connector provided by the invention adopts a high-speed low-power-consumption enhanced micro control unit, meanwhile, the control strategies such as sleep awakening power-down and the like are matched, the power consumption of the terminal can be greatly reduced, the terminal is powered by a high-energy-density lithium battery, the characteristics of high energy, small self-discharge, wide working temperature range and the like are realized, the use requirement of complex underground severe environment can be met, the terminal can continuously work for more than 5 years, and the technical difficulties of limited electricity taking, short service life and the like of underground equipment are effectively solved.
3. The shell of the device of the monitoring and processing terminal for the running state of the intermediate joint of the cable is made of the ABS flame-retardant material, the whole machine meets the IP 67-level waterproof and moistureproof design, and the working requirements of a cable well and a cable trench in severe environments can be effectively met.
4. The operation state monitoring and processing terminal for the cable intermediate joint is convenient and flexible to install, the number of the sensors can be flexibly adjusted according to the number of the underground cable joints, and power failure is not required during installation.
5. The system device adopts the operator wireless network to directly access the power supply company equipment monitoring master station, does not need to rebuild a deployment system, reduces the cost and has high cost performance.
Drawings
FIG. 1 is a system configuration diagram of embodiment 1 of the present invention;
fig. 2 is a configuration diagram of an online monitoring processing terminal for the operation state of a cable intermediate joint according to embodiment 1 of the present invention;
FIG. 3 is a flow chart of embodiment 2 of the present invention.
Detailed Description
The invention will be further described with reference to the following figures and examples.
Example 1
As shown in FIG. 1, an online monitoring system for the operation status of a cable intermediate connector comprises a sensor unit, a monitoring processing terminal for the operation status of the cable intermediate connector, a 5G virtual private network, a monitoring master station for power supply company equipment and a mobile client of a mobile phone,
the sensor unit collects monitoring parameters of a cable intermediate joint in a cable joint well in real time and sends the monitoring parameters to a cable intermediate joint operation state monitoring processing terminal;
the sensor unit comprises a temperature sensor and a temperature and humidity sensor,
the temperature sensor is directly attached to the surface of the insulating sheath of the cable intermediate joint and senses the temperature signal of the cable intermediate joint in real time;
the humidity sensor and/or the temperature and humidity sensor are/is suspended in the cable joint well, and environmental temperature and humidity signals in the cable joint well are sensed in real time;
the monitoring parameters comprise a temperature signal of a cable intermediate joint and an environment temperature and humidity signal in a cable joint well;
the monitoring and processing terminal for the running state of the cable intermediate joint stores, processes, calculates and analyzes the collected monitoring parameters, and starts an alarm signal when the monitoring parameters exceed a set threshold value;
as shown in fig. 2, the terminal for monitoring and processing the operating state of the cable intermediate connector comprises a housing, a signal input end of a sensor unit arranged on the side wall of the housing, and a signal acquisition and processing unit, a micro control unit, a battery power supply unit, a security authentication encryption module and a timer module which are arranged inside the housing;
the shell is used for protecting internal circuit elements, preventing external force damage and preventing water and moisture; the shell is made of ABS flame-retardant material, and the whole machine meets the IP 67-grade waterproof and moistureproof design so as to meet the working requirements of a cable well and a cable trench in severe environment;
one end of the signal input end of the sensor unit is connected with the sensor unit through a signal wire, and the other end of the signal input end of the sensor unit is connected with the signal acquisition processing unit;
the signal acquisition and processing unit is used for preprocessing the monitoring parameter analog signals output by the sensor unit, converting the monitoring parameter analog signals into monitoring parameter digital signals and transmitting the monitoring parameter digital signals to the micro control unit;
the micro control unit reads the monitoring parameter digital signal, judges whether the running state of the cable intermediate joint is abnormal or not by comparing the monitoring parameter digital signal with a preset parameter, and sends an abnormal running state alarm signal if the running state is abnormal; sending the read monitoring parameter digital signal and/or the running state abnormal alarm signal to a 5G virtual private network;
the micro control unit is a high-speed low-power-consumption enhanced single chip microcomputer GD32F103, the single chip microcomputer is internally provided with a CPU and resources such as a memory RAM, a ROM, a FLASH and the like, and the micro control unit has a normal mode, a power failure mode, an idle mode and a sleep mode;
the signal acquisition and processing unit is in bidirectional communication connection with the micro control unit, and the micro control unit controls the signal acquisition and processing unit to acquire monitoring parameters by utilizing an AT instruction and uploads the monitoring parameters to the micro control unit; the micro control unit is in bidirectional communication connection with the 5G communication module, controls the 5G communication module by using an AT command, uploads the acquired signal to the monitoring master station and receives information transmitted by the monitoring master station through the 5G communication module;
the battery power supply unit is used for providing a working power supply for the sensor unit, the signal acquisition and processing unit, the micro control unit and the 5G communication module;
the battery power supply unit adopts a high-energy density lithium battery to supply power;
the safety encryption module is used for encrypting and decrypting a transmission signal of the micro control unit, and the micro control unit is encrypted by the safety certification encryption module before sending data to the 5G virtual private network; the micro control unit receives the data sent by the 5G virtual private network and then decrypts the data through a security authentication encryption module;
the security authentication encryption module is an industrial grade SC1161Y encryption chip, and single-phase identity authentication and message integrity protection are realized by adopting an asymmetric key algorithm based on a scheduling certificate;
the timer module carries out timing setting on the monitoring processing terminal, the sensor unit collects monitoring parameters of a cable intermediate connector in a cable connector well in real time once every time T, and when the accumulated time reaches the set N time intervals T, the stored monitoring parameters of the N time intervals T are sent to the power supply company equipment monitoring master station at one time;
the 5G virtual private network takes a telecom operator 5G network as a platform, establishes a virtual private network comprising a plurality of cable intermediate joint operation state monitoring and processing terminals and a power supply company equipment monitoring master station, and the cable intermediate joint operation state monitoring and processing terminals establish a bidirectional communication link with the power supply company equipment monitoring master station through the 5G virtual private network and send monitoring parameters and/or alarm signals to the power supply company equipment monitoring master station;
the 5G virtual private network comprises a 5G communication module and a wireless network base station;
the 5G communication module is responsible for monitoring the sending and data receiving of parameter digital signals and/or abnormal operation state alarm signals, and realizes data transmission with a wireless network base station;
the wireless network base station establishes a virtual private network comprising a plurality of cable intermediate joint operation state monitoring and processing terminals and a power supply company equipment monitoring master station, the cable intermediate joint operation state monitoring and processing terminals establish a bidirectional communication link with the power supply company equipment monitoring master station through the 5G virtual private network, and transmit monitoring parameters and/or alarm signals to the power supply company equipment monitoring master station;
the power supply company equipment monitoring master station receives monitoring parameters and/or alarm signals, carries out coding and decoding processing on the received monitoring parameters and/or alarm signals, and displays the monitoring parameters and/or alarm signals to a dispatching attendant through sound, graphics and/or an alarm window so as to achieve the purpose of monitoring the running state of the cable intermediate joint; the power supply company equipment monitoring master station is provided with a storage database, and monitoring parameters and/or alarm signals are stored in the storage database after being coded and decoded;
also comprises a safety isolation device and a mobile client of the mobile phone,
the security isolation device ensures that an internal network of the system is not directly or indirectly connected with a public network, thereby protecting internal network equipment and a communication link from network attack and monitoring from the Internet and ensuring that electric power secret-related information is not leaked and damaged, and the security isolation device is Nanrui sysskepper-2000;
the mobile client of the mobile phone is connected with a power supply company equipment monitoring master station through the Internet and checks monitoring parameters and/or alarm signals;
the power supply company equipment monitoring main station is connected with the APP interface server through the safety isolation device, and transmits monitoring parameters and/or alarm signals to the mobile phone client side safely for display. .
Example 2
As shown in fig. 1, an on-line monitoring method of a safe and effective on-line monitoring system for the operation status of a cable intermediate joint according to embodiment 1 includes the steps of,
(1) The sensor unit collects a running temperature signal of a cable intermediate joint and an environment temperature and humidity signal of a cable joint well in real time;
(2) A signal acquisition processing unit of the cable intermediate joint operation state monitoring processing terminal converts the analog signals output by the sensor unit into digital signals and sends the digital signals to a micro control unit;
(3) The micro control unit compares the current temperature value of the cable joint, the short-time temperature mutation value, the difference value of the ambient temperature and a preset value, judges whether a set threshold value is exceeded or not, and if the threshold value is exceeded, the step (4) is carried out; if the threshold value is not exceeded, entering the step (6);
(4) Generating an abnormal operating state alarm signal;
(5.1) waking up a 5G communication module of the 5G virtual private network;
(5.2) sending an abnormal operation state alarm signal to the 5G virtual private network through a 5G communication module of the 5G virtual private network, and receiving the abnormal operation state alarm signal of the 5G virtual private network by the power supply company equipment monitoring master station;
(5.3) the 5G communication module automatically turns into a sleep mode and returns to the step (3);
(6) The monitoring processing terminal is set regularly, and the sensor unit collects monitoring parameters of a cable intermediate joint in a cable joint well in real time once every interval T;
(7) Judging whether the accumulated time reaches the set N interval time T or not, if so, entering the step (8), and timing again, and if not, entering the step (3);
(8) Generating stored running telemetry data of the cable intermediate joint with N intervals T;
(9.1) waking up a 5G communication module of the 5G virtual private network;
(9.2) sending N cable intermediate joints running telemetering data with interval time T to the 5G virtual private network;
and (9.3) the 5G communication module automatically turns to the sleep mode and returns to the step (3).
In order to realize real-time monitoring of abnormal alarm, reduce power consumption to the maximum extent and prolong the service life of the terminal, the 5G communication module adopts an abnormal alarm and timing awakening working mechanism, and the 5G communication module is in a sleep state in most of time. The acquisition processing unit reads the data of the sensor in real time, the single chip microcomputer analyzes the running state data in a low power consumption mode, and when the data exceed a threshold value, the 5G communication module is awakened and an alarm is sent to the power supply company equipment monitoring master station. If the data does not reach the threshold value, the data is stored at regular time, when the monitoring processing terminal device detects that the timing time is up, the 5G communication module is awakened, and the running state telemetering data stored in the timing time at a plurality of moments are transmitted to the power supply company equipment monitoring main station at one time, so that the repeated transmission of the data is reduced, and the communication power consumption is reduced. After the 5G communication module sends the alarm signal and the running state telemetering data every time, the sleep mode is automatically carried out, and the next awakening is waited.
The invention is based on the technical principles of a sensor, signal acquisition and processing, 5G virtual private network remote communication and safety certification encryption, the sensor and a monitoring processing terminal are installed in a cable joint well, the sensor acquires the temperature of a cable intermediate joint in operation and the temperature and humidity parameters of the environment in the joint well in real time, the monitoring processing terminal integrates a signal acquisition unit, a signal processing unit, a safety certification encryption module and a 5G communication module, the operation state data of the cable intermediate joint is stored and analyzed in real time, and the monitoring data and the alarm information are certified and encrypted and then are safely and effectively transmitted to a power supply company equipment monitoring main station through the 5G virtual private network, so that the real-time monitoring of the operation state of the cable intermediate joint and the active early warning of abnormal operation are realized, the difficult problem that the operation state of the underground cable intermediate joint is difficult to monitor is solved, distribution network operation and maintenance personnel are helped to find and remove fault hidden dangers in time, and the handling efficiency and the power supply reliability are improved.
Claims (10)
1. An on-line monitoring system for the running state of a cable intermediate joint comprises a sensor unit, a monitoring and processing terminal for the running state of the cable intermediate joint, a 5G virtual private network and a monitoring master station for power supply company equipment,
the sensor unit collects monitoring parameters of a cable intermediate connector in a cable connector well in real time and sends the monitoring parameters to a cable intermediate connector operation state monitoring processing terminal;
the sensor unit comprises a temperature sensor and a temperature and humidity sensor,
the temperature sensor is directly attached to the surface of the insulating sheath of the cable intermediate joint and senses the temperature signal of the cable intermediate joint in real time;
the humidity sensor and/or the temperature and humidity sensor are/is suspended in the cable joint well, and an environment temperature and humidity signal in the cable joint well is sensed in real time;
the monitoring parameters comprise a temperature signal of a cable intermediate joint and an environment temperature and humidity signal in a cable joint well;
the monitoring and processing terminal for the running state of the cable intermediate joint stores, processes, calculates and analyzes the collected monitoring parameters, and starts an alarm signal when the monitoring parameters exceed a set threshold value;
the 5G virtual private network takes a telecom operator 5G network as a platform, establishes a virtual private network comprising a plurality of cable intermediate joint operation state monitoring and processing terminals and a power supply company equipment monitoring master station, and the cable intermediate joint operation state monitoring and processing terminals establish a bidirectional communication link with the power supply company equipment monitoring master station through the 5G virtual private network and send monitoring parameters and/or alarm signals to the power supply company equipment monitoring master station;
the power supply company equipment monitoring master station receives monitoring parameters and/or alarm signals, carries out coding and decoding processing on the received monitoring parameters and/or alarm signals, and displays the monitoring parameters and/or alarm signals to a dispatching attendant through sound, graphics and/or an alarm window so as to achieve the purpose of monitoring the running state of the cable intermediate joint; the power supply company equipment monitoring master station is provided with a storage database, and monitoring parameters and/or alarm signals are stored in the storage database after being coded and decoded.
2. The on-line monitoring system of claim 1, further comprising a security isolation device and a mobile handset client,
the safety isolation device ensures that the internal network of the system is not directly or indirectly connected with a public network, thereby protecting internal network equipment and a communication link from being attacked and monitored by the network from the Internet and ensuring that electric power secret-related information is not leaked and damaged;
the mobile client of the mobile phone is connected with a power supply company equipment monitoring master station through the Internet and checks monitoring parameters and/or alarm signals;
the power supply company equipment monitoring main station is connected with the APP interface server through the safety isolation device, and transmits monitoring parameters and/or alarm signals to the mobile phone client side safely for display.
3. The on-line monitoring system of claim 2, wherein the security isolation device is south rayleigh syskeper-2000.
4. The on-line monitoring system of claim 1, wherein the cable intermediate connector operating state monitoring processing terminal comprises a housing, a sensor unit signal input end arranged on the side wall of the housing, a signal acquisition processing unit, a micro control unit and a battery power supply unit arranged inside the housing;
the shell is used for protecting internal circuit elements, preventing external force damage and preventing water and moisture;
one end of the signal input end of the sensor unit is connected with the sensor unit through a signal wire, and the other end of the signal input end of the sensor unit is connected with the signal acquisition and processing unit;
the signal acquisition and processing unit is used for preprocessing the monitoring parameter analog signals output by the sensor unit, converting the monitoring parameter analog signals into monitoring parameter digital signals and transmitting the monitoring parameter digital signals to the micro control unit;
the micro control unit reads the monitoring parameter digital signal, judges whether the running state of the cable intermediate joint is abnormal or not by comparing the monitoring parameter digital signal with a preset parameter, and sends an abnormal running state alarm signal if the running state is abnormal; sending the read monitoring parameter digital signal and/or the running state abnormal alarm signal to a 5G virtual private network;
the signal acquisition and processing unit is in bidirectional communication connection with the micro control unit, and the micro control unit controls the signal acquisition and processing unit to acquire monitoring parameters by utilizing an AT instruction and uploads the monitoring parameters to the micro control unit; the micro control unit is in bidirectional communication connection with the 5G communication module, controls the 5G communication module by using an AT command, uploads the acquired signal to the monitoring master station and receives information transmitted by the monitoring master station through the 5G communication module;
the battery power supply unit is used for providing a working power supply for the sensor unit, the signal acquisition and processing unit, the micro control unit and the 5G communication module.
5. The on-line monitoring system according to claim 1 or 4, wherein the cable intermediate connector operating state monitoring processing terminal further comprises a security authentication encryption module, the security encryption module is used for encrypting and decrypting a transmission signal of the micro control unit, and the micro control unit is encrypted by the security authentication encryption module before sending data to the 5G virtual private network; and the micro control unit decrypts the data sent by the 5G virtual private network through a security authentication encryption module before receiving the data.
6. The on-line monitoring system of claim 5, wherein the security authentication encryption module is an industrial grade SC1161Y encryption chip, and single-phase identity authentication and message integrity protection are realized by adopting an asymmetric key algorithm based on a scheduling certificate.
7. The on-line monitoring system according to claim 1 or 4, wherein the cable intermediate connector operation status monitoring processing terminal further comprises a timer module,
the timer module carries out timing setting to the monitoring processing terminal, and every interval time T storage once sensor unit gathers cable intermediate head's in the cable joint well monitoring parameter in real time, when accumulated time reaches N interval time T of settlement, sends the monitoring parameter of N interval time T of storage to power supply company equipment monitoring main website in one time.
8. The on-line monitoring system of claim 1, wherein the 5G virtual private network comprises a 5G communication module and a wireless network base station;
the 5G communication module is responsible for monitoring the sending and data receiving of parameter digital signals and/or abnormal operation state alarm signals, and realizes data transmission with a wireless network base station;
the wireless network base station establishes a virtual private network comprising a plurality of cable intermediate joint running state monitoring and processing terminals and a power supply company equipment monitoring master station, and the cable intermediate joint running state monitoring and processing terminals establish a bidirectional communication link with the power supply company equipment monitoring master station through the 5G virtual private network and send monitoring parameters and/or alarm signals to the power supply company equipment monitoring master station.
9. An on-line monitoring method of the on-line monitoring system for the operation state of the cable intermediate joint according to any one of claims 1 to 8, comprising the steps of,
(1) The sensor unit collects a running temperature signal of a cable intermediate joint and an environment temperature and humidity signal of a cable joint well in real time;
(2) A signal acquisition processing unit of the cable intermediate joint operation state monitoring processing terminal converts the analog signals output by the sensor unit into digital signals and sends the digital signals to a micro control unit;
(3) The micro control unit compares the current temperature value of the cable joint, the short-time temperature mutation value, the difference value of the ambient temperature and a preset value, judges whether a set threshold value is exceeded or not, and if the threshold value is exceeded, the step (4) is carried out; if the threshold value is not exceeded, entering the step (6);
(4) Generating an abnormal operation state alarm signal;
(5) Sending an abnormal operation state alarm signal to the 5G virtual private network through a 5G communication module of the 5G virtual private network, and receiving the abnormal operation state alarm signal of the 5G virtual private network by a power supply company equipment monitoring master station;
(6) The monitoring processing terminal is set regularly, and the sensor unit collects monitoring parameters of a cable intermediate joint in a cable joint well in real time once every interval T;
(7) Judging whether the accumulated time reaches the set N interval times T or not, if so, entering the step (8), timing again, and if not, entering the step (3);
(8) Generating stored running telemetry data of the cable intermediate joint with N intervals T;
(9) And sending the running telemetry data of the cable intermediate joints with N intervals T to the 5G virtual private network.
10. The on-line monitoring method according to claim 9, wherein before step (5) and/or step (9), the 5G communication module of the 5G vpn is awakened; and (4) automatically switching the 5G communication module to the sleep mode after the step (5) and/or the step (9), and returning to the step (3).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111643313 | 2021-12-30 | ||
| CN2021116433135 | 2021-12-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115824304A true CN115824304A (en) | 2023-03-21 |
Family
ID=85545133
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211550574.7A Pending CN115824304A (en) | 2021-12-30 | 2022-12-05 | Cable intermediate joint running state online monitoring system and online monitoring method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115824304A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116381563A (en) * | 2023-05-30 | 2023-07-04 | 菱亚能源科技（深圳）股份有限公司 | Underground power cable monitoring method and device |
-
2022
- 2022-12-05 CN CN202211550574.7A patent/CN115824304A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116381563A (en) * | 2023-05-30 | 2023-07-04 | 菱亚能源科技（深圳）股份有限公司 | Underground power cable monitoring method and device |
| CN116381563B (en) * | 2023-05-30 | 2023-08-11 | 菱亚能源科技（深圳）股份有限公司 | Underground power cable monitoring method and device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108155719A (en) | For the intelligent cloud acquisition system and method for monitoring power distribution | |
| CN104597398B (en) | Intelligent plug-pull type breaker and its monitoring early-warning system | |
| CN101026661A (en) | Pumpingunit long-distance information transmission and control device and control method | |
| CN207677507U (en) | Intelligent cloud acquisition system for monitoring power distribution | |
| CN115824304A (en) | Cable intermediate joint running state online monitoring system and online monitoring method thereof | |
| CN106706023A (en) | Comprehensive monitoring system for power transmission line | |
| CN113566883A (en) | Power cable monitoring method and system based on Internet of things and storage medium | |
| CN112311091A (en) | Online monitoring system for ring main unit based on Internet of things technology | |
| CN109785557B (en) | Intelligent power optical cable anti-external loss monitoring and early warning system and monitoring and early warning method thereof | |
| CN204650702U (en) | A kind of power cable wireless real-time monitoring and warning system | |
| CN109698554A (en) | Substation equipment Dispatching monitor and control system and method | |
| CN211148776U (en) | Current acquisition device and current monitoring system | |
| CN210864009U (en) | Cable intermediate head monitoring system | |
| CN210051453U (en) | Power equipment temperature real-time monitoring device based on Beidou communication | |
| CN107516930B (en) | Emergency power supply system for communication | |
| CN108550252A (en) | Transmission line icing monitoring system based on optical-fibre communications | |
| CN111313549B (en) | Flood light stock power supply system based on ubiquitous Internet of things and monitoring method | |
| CN103615290A (en) | Mining safety monitoring and control substation for voice intercom and online intrinsic safety power supply monitoring | |
| CN111307219A (en) | Grounding circulation on-line monitoring system with active anti-theft and high-speed wireless transmission | |
| CN110839223A (en) | 5G micro base station monitoring system | |
| CN215909992U (en) | Online power cable temperature measurement system | |
| CN110890710A (en) | Ring main unit with temperature sensing device inside | |
| CN212675003U (en) | Intelligent ammeter electricity larceny prevention warning device | |
| CN212988442U (en) | Engineering machinery monitoring equipment based on lora technology | |
| CN211178788U (en) | Power distribution equipment heating monitoring and alarming device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |