CN210721066U - Power channel environment intelligent monitoring system based on NB-IoT technology - Google Patents
Power channel environment intelligent monitoring system based on NB-IoT technology Download PDFInfo
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- CN210721066U CN210721066U CN201921404293.4U CN201921404293U CN210721066U CN 210721066 U CN210721066 U CN 210721066U CN 201921404293 U CN201921404293 U CN 201921404293U CN 210721066 U CN210721066 U CN 210721066U
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Abstract
The utility model relates to an electric power channel environment intelligent monitoring system based on NB-IoT technique, environmental information in can be continuous, dynamic, real-time collection electric power channel environment to and the running state information that key position includes cable and cable intermediate head, and send the information of gathering respectively for the surveillance center or the mobile monitoring end of intelligent execution mechanism and distal end. Through the running state of the on-site power transmission line fed back by the monitoring system, the intelligent execution mechanism can automatically start, stop or perform other execution actions according to preset running conditions, and can also receive a remote execution instruction to perform corresponding actions to adjust the environment, so that the running state or the environment of the power transmission line in the power channel condition is improved.
Description
Technical Field
The utility model relates to an electric power passageway control technical field especially relates to an electric power channel environment intelligent monitoring system based on NB-IoT technique.
Background
The power cable is a key primary device of the urban power distribution network, and is important for ensuring the operation of a power distribution network system, improving the early warning and emergency handling capacity of faults or emergencies of cables and cable intermediate connectors in a power channel, ensuring the safety of the working environment of operation and maintenance personnel, carrying out continuous, dynamic and real-time dynamic monitoring on the power channel, and intelligently and remotely carrying out active improvement and intervention on environmental abnormity.
The current power channel environment monitoring has the following problems:
1. the ability to dynamically, real-time, continuously monitor the power channel environment is lacking. Usually, the power cable is laid in a power channel or a tunnel, the environment is relatively closed, harmful gas and water are easily accumulated in the power channel, and the danger of operation and maintenance personnel or the operation and maintenance difficulty are caused by the overhigh concentration of the harmful gas or the serious water accumulation. During operation and maintenance, the existing technical scheme is mainly used for on-site monitoring, is influenced by a working face and cannot realize continuous, dynamic and real-time monitoring.
2. The ability to intelligently intervene in the power channel environment is lacking. Because each cable reel has a fixed length, to run longer lengths of cable, multiple lengths must be joined together by cable intermediate joints. The cable intermediate joint has low quality, loose connection and overlarge contact resistance, and the abnormity of the working state of the intermediate joint cannot be timely found and processed in the running process, so that the cable joint is overheated and breaks down insulation, and a power channel is in fire. The prior art can not find the danger trend and take the counter measures actively.
3. There is a lack of means of information transfer suitable for power channel conditions. The electric power channel geographical position span is big, and the inside wireless signal of channel covers relatively poorly, and all kinds of sensors in the channel, intelligent control ware and remote monitoring terminal realize that remote wireless communication is comparatively difficult, perhaps communication quality is not good enough. And the cost of laying the line network is high, and the maintenance difficulty is large.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is: the system is used for continuously, dynamically and real-timely acquiring environmental information in the power channel environment, acquiring running state information of a cable and a cable intermediate joint at key positions, and respectively sending the acquired information to an intelligent execution mechanism and a remote monitoring center or a mobile monitoring end. The intelligent executing mechanism can automatically start, stop or perform other actions according to preset operating conditions. The intelligent execution mechanism can also receive an execution instruction of the remote monitoring center or the mobile monitoring end to perform corresponding execution action. Through the running state of the field power transmission line fed back by the monitoring system, the intelligent execution mechanism automatically adjusts the running environment of the power transmission line or adjusts the running environment according to a remote control instruction, so that the running state or the environment of the power transmission line in a power channel condition is improved, power failure is avoided, the reliability of the power transmission line is improved, and the power supply quality is guaranteed. And the problems of difficult networking and information interaction, high operation and maintenance cost and the like in the conventional power channel environment are solved.
The utility model adopts the technical proposal that: the utility model adopts the technical proposal that: an intelligent power channel environment monitoring system based on NB-IoT technology comprises an environment monitoring module (1), a cable running state monitoring module (2), a cable middle joint running state monitoring module (3), an NB-IoT base station (4), an NB-IoT terminal (5), an NB-IoT core network (6), a remote terminal device RTU (7), a three-phase imbalance adjusting device (8), a single chip microcomputer (9), an intelligent executing mechanism (10), a remote monitoring center computer (11), a remote mobile monitoring end (12) and a power supply module (13) of each device and module, wherein the environment monitoring module (1) comprises sensors (14) respectively connected with the single chip microcomputer (9), the sensors (14) are arranged in a power channel and used for monitoring environmental parameters, the single chip microcomputer (9) is connected with an NB-IoT terminal (5) through a bus, when the single chip microcomputer (9) judges that the environmental parameters in the power channel reach a preset threshold value, a terminal network consisting of an NB-IoT base station (4) and an NB-IoT terminal (5) and an NB-IoT core network (6) respectively send measurement and control information to an intelligent execution mechanism (10), a remote monitoring center computer (11) and a remote mobile monitoring end (12), the cable running state monitoring module (2) comprises cable temperature measuring temperature sensors (15) respectively connected with the single chip microcomputer (9), the cable temperature measuring temperature sensors (15) are arranged on the surfaces of cables and used for monitoring the surface temperature of the cables, the cable middle joint running state monitoring module (3) comprises joint temperature measuring temperature sensors (16) respectively connected with the single chip microcomputer (9), and the joint temperature measuring temperature sensors (16) connected with the single chip microcomputer (9) are arranged on a cable middle joint and used for monitoring the temperature of a cable middle joint, and when the single chip microcomputer (9) judges that the temperature of the cable surface or/and the cable intermediate joint reaches a preset temperature threshold value, the single chip microcomputer sends measurement and control information to a remote terminal device RTU (7), a three-phase imbalance adjusting device (8), an intelligent executing mechanism (10), a remote monitoring center computer (11) and a remote mobile monitoring terminal (12) through an NB-IoT network.
Furthermore, the sensor (14) is a temperature and humidity sensor (17), the intelligent execution mechanism (10) is an intelligent ventilation device (19) and/or an intelligent cooling and dehumidifying device (20), the temperature and humidity sensor (17) is arranged in the power channel and used for monitoring temperature and humidity, when the single chip microcomputer (9) judges that the temperature and humidity in the power channel reaches a preset first threshold value, the terminal network formed by the NB-IoT base station (4) and the NB-IoT terminal (5) sends measurement and control information to the intelligent execution mechanism (10), the intelligent ventilation device (19) and/or the intelligent cooling and dehumidifying device (20) is started and the environment of the power channel is improved, when the temperature and humidity in the power channel is lower than the first threshold value, otherwise, when the single chip microcomputer (9) judges that the temperature and humidity in the power channel reaches a preset second threshold value, and sending the alarm signal to a remote monitoring center computer (11) and/or a remote mobile monitoring terminal (12) through the terminal network and the NB-IoT core network (6).
Further, the sensor (14) is a combustible gas sensor (21) and/or a toxic gas sensor (22), the intelligent execution mechanism (10) is an intelligent ventilation device (19), the combustible gas sensor (21) and/or the toxic gas sensor (22) is arranged in the power channel and used for monitoring the gas concentration of combustible gas and/or toxic gas, when the single chip microcomputer (9) judges that the gas concentration in the power channel reaches a preset first threshold value, measurement and control information is sent to the intelligent ventilation device (19) through a terminal network formed by the NB-IoT base station (4) and the NB-IoT terminal (5), the intelligent ventilation device (19) is started and the environment of the power channel is improved, when the gas concentration in the power channel is lower than the first threshold value, otherwise, when the single chip microcomputer (9) judges that the gas concentration in the power channel reaches a preset second threshold value, and sending the alarm signal to a remote monitoring center computer (11) and/or a remote mobile monitoring terminal (12) through the terminal network and the NB-IoT core network (6).
Furthermore, the sensor (14) is an oxygen sensor (23), the intelligent executing mechanism (10) is an intelligent ventilating device (19), the oxygen sensor (23) is arranged in the electric power channel and used for monitoring the concentration of oxygen gas, when the singlechip (9) judges that the concentration of the gas in the electric power channel is lower than a preset first threshold value, the method comprises the steps of sending measurement and control information to an intelligent ventilation device (19) through a terminal network formed by an NB-IoT base station (4) and an NB-IoT terminal (5), starting the intelligent ventilation device (19) and improving the environment of a power channel, stopping working until the concentration of gas in a power channel is higher than a first threshold value, otherwise, judging that the concentration of gas in the power channel is lower than a preset second threshold value by a singlechip (9), and sending the alarm signal to a remote monitoring center computer (11) and/or a remote mobile monitoring terminal (12) through the terminal network and the NB-IoT core network (6).
Further, when the single chip microcomputer (9) judges that the temperature of the cable surface or/and the cable intermediate joint reaches a preset temperature threshold value, measurement and control information is sent to an intelligent execution mechanism (10) through a terminal network formed by an NB-IoT base station (4) and an NB-IoT terminal (5), the intelligent execution mechanism (10) is started, the temperature of the cable or/and the cable intermediate joint is reduced, and the operation is stopped when the temperature of the cable or/and the cable intermediate joint is lower than a first threshold value, otherwise, when the single chip microcomputer (9) judges that the temperature in the power channel reaches a preset second threshold value, the measurement and control information is sent to a remote monitoring center computer (11) and/or a remote mobile monitoring terminal (12) through the terminal network and an NB-IoT core network (6), and operation and maintenance personnel perform active intervention control, and stopping working when the temperature of the cable or/and the cable intermediate joint is lower than a first threshold value, otherwise, when the single chip microcomputer (9) judges that the temperature in the power channel reaches a preset third threshold value, sending a control instruction to a remote terminal unit RTU (7) through a terminal network and an NB-IoT (NB-IoT) core network (6), and opening an overcurrent protection relay of the remote terminal unit RTU (7).
Furthermore, the joint temperature measuring temperature sensor (16) is a DS1820 temperature sensor (24), the connected single chip microcomputer (9) is an AT89C52 single chip microcomputer (25), the AT89C52 single chip microcomputer (25) is connected with the NB-IoT terminal (5) through an RS232 bus, the cable running state monitoring adopts point type temperature monitoring, and the temperature sensors are dispersedly arranged on important monitoring positions on the cable according to monitoring requirements.
Furthermore, the cable temperature measuring temperature sensor (15) is a GSDTS-04-10 temperature sensor (26), the temperature sensor (26) is a distributed optical fiber temperature sensor, and three distributed optical fibers of the GSDTS-04-10 temperature sensor (26) are respectively arranged on the surface of an insulating layer of the cable according to an included angle of 120 degrees.
Further, the intelligent ventilation device (19) comprises a blade motor (27) and an alternating current contactor (28).
Further, the NB-IoT terminal (5) is a BC28(29) moving in the shanghai, and the BC28(29) includes circuits such as a baseband, a radio frequency power supply management, and a peripheral interface.
Furthermore, the remote monitoring center computer (11) and the remote mobile monitoring terminal (12) comprise a virtual control panel (30) of the human-computer operation interface intelligent execution mechanism, and the virtual control panel is used for remotely controlling the intelligent execution mechanism (10).
Furthermore, the three-phase unbalance adjusting device (8) comprises a load side three-phase unbalance adjusting device (31) and/or a power supply side three-phase unbalance adjusting device (32), the load side three-phase unbalance adjusting device (31) comprises a commutation module (33), a single chip microcomputer (9), a signal detection module (34) and an NB-IoT terminal (5), the input of the signal detection module (34) is connected to a three-phase electric wire, the output of the signal detection module (34) is connected with the single chip microcomputer (9), the single chip microcomputer (9) is connected with the NB-IoT terminal (5) through a bus and connected to an NB-IoT network, the output of the single chip microcomputer (9) is connected with a control loop of the commutation module (33), the input side of a main loop of the commutation module (33) is connected with an A, B, C three-phase cable of a distribution line, the input side of the main loop of the commutation module (33) is provided with three, the moving contact is connected to the output, is connected to a power phase line connecting terminal of a load as an L line, supplies power for a single-phase load together with an N line, three fixed contacts are respectively connected with A, B, C three-phase cables of a distribution line, the moving contact can be switched among the three fixed contacts according to phase modulation requirements, the switching of the L line of the single-phase load among A, B, C three-phase cables is realized, the source side three-phase unbalance adjusting device (32) is composed of a switching action module IGBT (35), a reactor and capacitor bank (36), a single chip microcomputer (9) and an NB-IoT terminal (5), the switching action module IGBT (35) is connected in parallel to the three-phase cables of a power grid on the power side through a wire and a breaker, the output of the switching action module IGBT (35) is connected to the reactor and the capacitor bank (36), and the single chip microcomputer (9, the reactor and capacitor bank (36) is provided with a plurality of groups of compensation grades, the switching control of the compensation grades is realized by a single chip microcomputer (9), and the single chip microcomputer (9) is connected with the NB-IoT terminal (5) through a bus and is connected to the NB-IoT network.
The utility model has the advantages that: the utility model relates to a realized a power channel environment intelligent monitoring system based on NB-IoT technique, including environment monitoring module, cable running state monitoring module, cable intermediate head running state monitoring module, NB-IoT basic station, and NB-IoT terminal, NB-IoT core network, remote terminal unit RTU, unbalanced three-phase adjusting device, singlechip, intelligent actuating mechanism, remote monitoring center computer, long-range removal control end to and the power module of each equipment and module. The system can continuously, dynamically and real-timely collect environmental information in the power channel environment, and the key parts comprise the running state information of the cable and the cable intermediate joint, and respectively transmit the collected abnormal state information to the remote monitoring center and the mobile monitoring end, or convert the abnormal state information into a control instruction signal to be transmitted to the intelligent executing mechanism. The intelligent executing mechanism can automatically start, stop or perform other actions according to preset operating conditions. The intelligent execution mechanism can also receive an execution instruction of the remote monitoring center or the mobile monitoring end to perform corresponding execution action. Through the running state of the field power transmission line fed back by the monitoring system, the intelligent execution mechanism automatically adjusts the running environment of the power transmission line or adjusts the running environment according to a remote control instruction, so that the running state or the environment of the power transmission line in a power channel condition is improved, power failure is avoided, the reliability of the power transmission line is improved, and the power supply quality is guaranteed. And the problems of difficult networking and information interaction, high operation and maintenance cost and the like in the conventional power channel environment are solved.
Drawings
FIG. 1 is a connection diagram of an intelligent power channel environment monitoring system based on NB-IoT technology
FIG. 2 connection diagram of environment monitoring module and NB-IoT terminal
FIG. 3 is a connection diagram of a cable intermediate connector operation status monitoring module and an NB-IoT terminal
FIG. 4 is a connection diagram of a cable operation status monitoring module and an NB-IoT terminal
FIG. 5 is a diagram of a surface-mount fiber-optic and cable connection for a cable operating condition monitoring module
FIG. 6 connection diagram of an intelligent control ventilation device
Fig. 7BC29 terminal hardware framework
FIG. 8 power supply side load balancing control connection diagram
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, not all, of the embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
According to an embodiment of the utility model, combine fig. 1 the utility model discloses a power channel environment intelligent monitoring system based on NB-IoT technique, including environmental monitoring module (1), cable running state monitoring module (2), cable intermediate head running state monitoring module (3), NB-IoT basic station (4), NB-IoT terminal (5), NB-IoT core network (6), remote terminal device RTU (7), unbalanced three-phase adjusting device (8), singlechip (9), intelligent actuating mechanism (10), remote monitoring center computer (11), remote mobile monitoring end (12) and power module (13) of each equipment and module.
According to an embodiment of the utility model, combine fig. 2, 3, 6 the utility model discloses sensor (14) of environment monitoring module (1) are temperature and humidity sensor (17), and intelligent actuating mechanism (10) are intelligent ventilation unit (19) and/or intelligent cooling dehydrating unit (20), temperature and humidity sensor set up in inside monitoring temperature and the humidity of being used for of electric power channel. Wherein, the intelligent ventilation device (19) and/or the intelligent cooling and dehumidifying device (20) are connected with the AC contactor by a 3-phase contactor. When the intelligent ventilation device (19) and/or the intelligent cooling and dehumidifying device (20) are/is in a working state, the 3-phase contactor is in a pull-in state; and (4) switching off a normally closed contact of a relay in the controller, wherein the circuit is in an open circuit state, the contactor is switched off, and the power supply of the three-phase power supply is stopped. The singlechip (9) in the controller adopts an AT89C52 singlechip (25) of ATMEL company. The temperature and humidity sensor (17) is a temperature and humidity sensor SHT10 and is used for measuring the temperature and the humidity in the power channel. The SHT10 sensor is a monolithic digital temperature and humidity integrated sensor. The sensor consists of 1 capacitive polymer humidity measuring element and 1 energy gap type temperature measuring element, and is seamlessly combined with 1 14-bit A/D converter and 1 2-wire digital interface in a single chip.
According to an embodiment of the present invention, with reference to fig. 2, the sensor (14) is a combustible gas sensor (21) and/or a toxic gas sensor (22), the intelligent actuator (10) is an intelligent ventilator (19), and the combustible gas sensor (21) and/or the toxic gas sensor (22) is/are disposed inside the power channel for monitoring the gas concentration of the combustible gas and/or the toxic gas.
According to the utility model discloses an embodiment, combine fig. 3 the utility model discloses cable running state monitoring module's singlechip is AT89C52 singlechip (25), connects temperature measurement temperature sensor (16) to be DS1820(24), and the singlechip is that AT89C52 singlechip (25) link to each other through the RS232 bus with NB-IoT terminal (5), and cable running state monitoring adopts point formula temperature monitoring, and a plurality of temperature sensor disposes important monitoring position (like cable joint etc.) on the cable according to the requirement dispersion of monitoring.
According to the utility model discloses an embodiment, combine fig. 4, 5 the utility model discloses cable running state monitoring module's singlechip (9) is AT89C52 singlechip (25), cable temperature measurement temperature sensor (15) are distributed optical fiber temperature sensor, GSDTS-04-10 temperature sensor (26) promptly, AT89C52 singlechip (25) link to each other through the RS232 bus with NB-IoT terminal (5), cable running state monitoring optical fiber formula temperature monitoring, three distributed optical fiber temperature sensor settle respectively on the insulating layer surface of cable according to 120 contained angles.
According to an embodiment of the present invention, the NB-IoT terminal (5) shown in fig. 7 is BC28(29), and BC28(29) includes circuits such as baseband, rf power management, and peripheral interface.
According to an embodiment of the present invention, the three-phase imbalance adjusting device (8) in fig. 8 includes a load-side three-phase imbalance adjusting device (31) and/or a power-side three-phase imbalance adjusting device (32), the load-side three-phase imbalance adjusting device (31) includes a commutation module (33), a single chip microcomputer (9), a signal detection module (34) and an NB-IoT terminal (5), the signal detection module (34) is connected to the three-phase wire, the signal detection module (34) is connected to the single chip microcomputer (9), the single chip microcomputer (9) is connected to the NB-IoT terminal (5) through a bus and connected to an IoT-NB network, the output of the single chip microcomputer (9) is connected to a control circuit of the commutation module (33), the input side of a main circuit of the commutation module (33) is connected to A, B, C three-phase cables of a power distribution line, the input side of a main loop of the phase change module (33) is provided with three fixed contacts and a moving contact, the moving contact is connected to the output and is connected to a power phase line wiring terminal of a load as an L line, the three fixed contacts and an N phase line jointly supply power to a single-phase load, the three fixed contacts are respectively connected with A, B, C three-phase cables of a distribution line, the moving contact can be switched among the three fixed contacts according to phase modulation requirements to realize the switching of the L line of the single-phase load among A, B, C three-phase cables, the source side three-phase imbalance adjusting device (34) is composed of a switch action module IGBT (35), a reactor and capacitor set (36), a single chip microcomputer (9) and an NB-IoT terminal (5), the switch action module IGBT (35) is connected in parallel to the three-phase cables of a power grid at the power side through a lead and a breaker, the output, the single chip microcomputer (9) is connected with the switch action module IGBT (35) through a lead, a plurality of groups of compensation grades are arranged in the reactor and capacitor group (36), switching control of the compensation grades is realized by the single chip microcomputer (9), and the single chip microcomputer (9) is connected with the NB-IoT terminal (5) through a bus and is connected to the NB-IoT network.
The foregoing is a preferred embodiment of the present invention, and for those skilled in the art to understand the teaching of the present invention, the changes, modifications, replacements and variations of the embodiments can be made without departing from the principles and spirit of the present invention.
Claims (9)
1. An intelligent power channel environment monitoring system based on NB-IoT technology comprises an environment monitoring module (1), a cable running state monitoring module (2), a cable middle joint running state monitoring module (3), an NB-IoT base station (4), an NB-IoT terminal (5), an NB-IoT core network (6), a remote terminal device RTU (7), a three-phase imbalance adjusting device (8), a single chip microcomputer (9), an intelligent executing mechanism (10), a remote monitoring center computer (11), a remote mobile monitoring end (12) and a power supply module (13) of each device and module, wherein the environment monitoring module (1) comprises sensors (14) respectively connected with the single chip microcomputer (9), the sensors (14) are arranged in a power channel and used for monitoring environmental parameters, the single chip microcomputer (9) is connected with an NB-IoT terminal (5) through a bus, when the single chip microcomputer (9) judges that the environmental parameters in the power channel reach a preset threshold value, a terminal network consisting of an NB-IoT base station (4) and an NB-IoT terminal (5) and an NB-IoT core network (6) respectively send measurement and control information to an intelligent execution mechanism (10), a remote monitoring center computer (11) and a remote mobile monitoring end (12), the cable running state monitoring module (2) comprises cable temperature measuring temperature sensors (15) respectively connected with the single chip microcomputer (9), the cable temperature measuring temperature sensors (15) are arranged on the surfaces of cables and used for monitoring the surface temperature of the cables, the cable middle joint running state monitoring module (3) comprises joint temperature measuring temperature sensors (16) respectively connected with the single chip microcomputer (9), and the joint temperature measuring temperature sensors (16) connected with the single chip microcomputer (9) are arranged on a cable middle joint and used for monitoring the temperature of a cable middle joint, and when the single chip microcomputer (9) judges that the temperature of the cable surface or/and the cable intermediate joint reaches a preset temperature threshold value, the single chip microcomputer sends measurement and control information to a remote terminal device RTU (7), a three-phase imbalance adjusting device (8), an intelligent executing mechanism (10), a remote monitoring center computer (11) and a remote mobile monitoring terminal (12) through an NB-IoT network.
2. The intelligent power channel environment monitoring system based on the NB-IoT technology as claimed in claim 1, wherein the sensor (14) is a temperature and humidity sensor (17), the intelligent execution mechanism (10) is an intelligent ventilation device (19) and/or an intelligent cooling and dehumidifying device (20), the temperature and humidity sensor (17) is arranged inside the power channel for monitoring temperature and humidity, when the single chip microcomputer (9) judges that the temperature and humidity in the power channel reaches a preset first threshold value, the measurement and control information is sent to the intelligent execution mechanism (10) through a terminal network composed of the NB-IoT base station (4) and the NB-IoT terminal (5), the intelligent ventilation device (19) and/or the intelligent cooling and dehumidifying device (20) is started and the power channel environment is improved, and the system stops working when the temperature and humidity in the power channel is lower than the first threshold value, otherwise, when the single chip microcomputer (9) judges that the temperature and humidity in the power channel reach a preset second threshold value, the alarm signal is sent to the remote monitoring center computer (11) and/or the remote mobile monitoring terminal (12) through the terminal network and the NB-IoT core network (6).
3. The NB-IoT technology-based intelligent power channel environment monitoring system as claimed in claim 1, wherein the sensor (14) is a combustible gas sensor (21) and/or a toxic gas sensor (22), the intelligent actuator (10) is an intelligent ventilator (19), the combustible gas sensor (21) and/or the toxic gas sensor (22) are disposed inside the power channel for monitoring the gas concentration of the combustible gas and/or the toxic gas, when the single-chip microcomputer (9) determines that the gas concentration in the power channel reaches a preset first threshold value, the single-chip microcomputer sends measurement and control information to the intelligent ventilator (19) through a terminal network composed of the NB-IoT base station (4) and the NB-IoT terminal (5), the intelligent ventilator (19) is started and the power channel environment is improved, and stopping working until the concentration of the gas in the power channel is lower than a first threshold, otherwise, when the singlechip (9) judges that the concentration of the gas in the power channel reaches a preset second threshold, sending an alarm signal to a remote monitoring center computer (11) and/or a remote mobile monitoring terminal (12) through the terminal network and the NB-IoT core network (6).
4. The power channel environment intelligent monitoring system based on the NB-IoT technology as claimed in claim 1, wherein the joint temperature measurement temperature sensor (16) is a DS1820 temperature sensor (24), the connected single chip microcomputer (9) is an AT89C52 single chip microcomputer (25), and the AT89C52 single chip microcomputer (25) is connected with the NB-IoT base station (4) through an RS485 bus.
5. An intelligent power channel environment monitoring system based on NB-IoT technology as claimed in claim 1 characterized in that the cable thermometric temperature sensor (15) is GSDTS-04-10 temperature sensor (26).
6. An intelligent power channel environment monitoring system based on NB-IoT technology according to claim 1, wherein the NB-IoT terminal (5) is a BC28(29) moving far in the shanghai.
7. The NB-IoT technology-based intelligent power channel environment monitoring system as recited in claim 1, wherein the remote monitoring center computer (11) and the remote mobile monitoring terminal (12) comprise a virtual control panel (30) of the hmi intelligent actuator for remotely controlling the intelligent actuator (10).
8. The system according to claim 1, wherein the three-phase imbalance adjusting device (8) comprises a load-side three-phase imbalance adjusting device (31) and/or a power-side three-phase imbalance adjusting device (32), the load-side three-phase imbalance adjusting device (31) comprises a commutation module (33), a single chip microcomputer (9), a signal detection module (34) and an NB-IoT terminal (5), the signal detection module (34) is connected to the three-phase electric wire at an input, the signal detection module (34) is connected to the single chip microcomputer (9) at an output, the single chip microcomputer (9) is connected to the NB-IoT terminal (5) through a bus and to an NB-IoT network, the output of the single chip microcomputer (9) is connected to a control loop of the commutation module (33), and an input side of a main loop of the commutation module (33) is connected to a, b, c, and c of the distribution line, B. C three-phase cable connection, the input side of the main loop of the phase change module (33) is provided with three fixed contacts and a moving contact, the moving contact is connected to the output and is connected to a power source phase line wiring terminal of a load as an L line, the three fixed contacts and the N phase line jointly supply power for a single-phase load, the three fixed contacts are respectively connected with A, B, C three-phase cables of a distribution line, the moving contact can be switched among the three fixed contacts according to phase modulation requirements, the L line of the single-phase load is switched among A, B, C three-phase cables, the source side three-phase imbalance adjusting device (32) is composed of a switch action module IGBT (35), a reactor and capacitor set (36), a single chip microcomputer (9) and an IoT-NB terminal (5), the switch action module IGBT (35) is connected in parallel to the three-phase cables of a power grid at the power source side through a lead and a breaker, the single chip microcomputer (9) is connected with the switch action module IGBT (35) through a lead, a plurality of groups of compensation grades are arranged in the reactor and capacitor group (36), switching control of the compensation grades is realized by the single chip microcomputer (9), and the single chip microcomputer (9) is connected with the NB-IoT terminal (5) through a bus and is connected to the NB-IoT network.
9. An intelligent NB-IoT technology-based power channel environment monitoring system according to any of claims 2-3, wherein the intelligent ventilation device (19) comprises a vane motor (27), an ac contactor (28).
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113049991A (en) * | 2021-03-24 | 2021-06-29 | 国网山东省电力公司泰安供电公司 | Distribution network line cable middle head running state monitoring system |
| CN113568346A (en) * | 2021-07-27 | 2021-10-29 | 国网湖北省电力有限公司襄阳供电公司 | Cable channel environment automatic regulating apparatus |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113049991A (en) * | 2021-03-24 | 2021-06-29 | 国网山东省电力公司泰安供电公司 | Distribution network line cable middle head running state monitoring system |
| CN113049991B (en) * | 2021-03-24 | 2022-11-29 | 国网山东省电力公司泰安供电公司 | Distribution network line cable middle head running state monitoring system |
| CN113568346A (en) * | 2021-07-27 | 2021-10-29 | 国网湖北省电力有限公司襄阳供电公司 | Cable channel environment automatic regulating apparatus |
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Effective date of registration: 20220422 Address after: 710065 room 504, block B, Moore center, No. 34, Fenghui South Road, Zhangbagou street, Yanta District, Xi'an City, Shaanxi Province Patentee after: XI'AN RUIBAO ELECTRONIC TECHNOLOGY CO.,LTD. Patentee after: State Grid Shaanxi Electric Power Co., Ltd. information and communication company Address before: 710063 room 504, block B, Moore center, No. 34, Fenghui South Road, Zhangbagou street, Yanta District, Xi'an City, Shaanxi Province Patentee before: XI'AN RUIBAO ELECTRONIC TECHNOLOGY CO.,LTD. |
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