CN212031956U - Power channel environment intelligent monitoring system based on LoRa technology - Google Patents
Power channel environment intelligent monitoring system based on LoRa technology Download PDFInfo
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- CN212031956U CN212031956U CN201921386390.5U CN201921386390U CN212031956U CN 212031956 U CN212031956 U CN 212031956U CN 201921386390 U CN201921386390 U CN 201921386390U CN 212031956 U CN212031956 U CN 212031956U
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Abstract
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 loRa technique, environmental information in can continuous, dynamic, real-time collection electric power channel environment to and key position includes the running state information of cable and cable intermediate head, and send the information of gathering respectively for the surveillance center or the mobile monitoring end of intelligent actuating 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 loRa 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 utility model provides an electric power channel environment intelligent monitoring system based on loRa technique to environmental information in the electric power channel environment is gathered to continuous, developments, real-time to and key position include the running state information of cable and cable intermediate head, and send the information of gathering respectively to intelligent actuating mechanism and the surveillance center or the removal control end of distal 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: an intelligent power channel environment monitoring system based on an LoRa technology comprises an environment monitoring module (1), a cable running state monitoring module (2), a cable intermediate joint running state monitoring module (3), a LoRa gateway/base station (4), a LoRa node module (5), an Internet network (6), a Remote Terminal Unit (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 (2) comprises sensors (14) respectively connected with the single chip microcomputer (9), the sensors (14) are arranged in the power channel and used for monitoring environmental parameters, the single chip microcomputer (9) is connected with the LoRa node module (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 LoRa network and an Internet network (6) which are composed of a LoRa gateway/base station (4) and a LoRa node module (5) 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) which are respectively connected with the single chip microcomputer (9), the cable temperature measuring temperature sensors (15) are arranged on the surface of a cable and used for monitoring the surface temperature of the cable, the cable middle connector running state monitoring module (3) comprises connector temperature measuring temperature sensors (16) which are respectively connected with the single chip microcomputer (9), and the connector temperature measuring temperature sensors (16) connected with the single chip microcomputer (9) are arranged on the cable middle connector and used for monitoring the temperature of the cable middle connector, 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 respectively sent to a remote terminal device RTU (7), a three-phase unbalance adjusting device (8), an intelligent executing mechanism (10), a remote monitoring center computer (11) and a remote mobile monitoring end (12) through a LoRa network.
Furthermore, the sensor (14) is a temperature and humidity sensor (17), the intelligent executing mechanism (10) is an intelligent ventilating device (19) and/or an intelligent cooling and dehumidifying device (20), the temperature and humidity sensor (17) is arranged in the electric power channel and used for monitoring temperature and humidity, when the singlechip (9) judges that the temperature and humidity in the electric power channel reach a preset first threshold value, the measurement and control information is sent to the intelligent execution mechanism (10) through a LoRa network, the intelligent ventilation device (19) and/or the intelligent cooling and dehumidifying device (20) are started, the power channel environment is improved, the work is stopped when the temperature and humidity in the power channel are lower than a first threshold value, otherwise, when the singlechip (9) judges that the temperature and humidity in the power channel reach 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 a LoRa network and an Internet network (6).
Further, sensor (14) are combustible gas sensor (21) and/or toxic gas sensor (22), intelligent actuating mechanism (10) are intelligent ventilation unit (19), combustible gas sensor (21) and/or toxic gas sensor (22) set up in inside gas concentration who is used for monitoring combustible gas and/or toxic gas of electric power channel, singlechip (9) judge when gas concentration reachs and predetermines first threshold in the electric power channel, send observing and controlling information to intelligent ventilation unit (19) through the LoRa network, start intelligent ventilation unit (19) and improve the electric power channel environment, stop work when gas concentration is less than first threshold in the electric power channel, otherwise, singlechip (9) judge that gas concentration reachs when predetermineeing the second threshold in the electric power channel, send alarm signal to remote monitoring center computer (11) and/or far away through LoRa network and Internet network (6) and monitor central computer (11) and/or far away And moving the monitoring terminal (12).
Further, sensor (14) are oxygen sensor (23), intelligence actuating mechanism (10) are intelligent ventilation unit (19), oxygen sensor (23) set up in inside being used for monitoring oxygen gas concentration of electric power channel, singlechip (9) judge when gas concentration is less than predetermined first threshold value in the electric power channel, send measurement and control information to intelligent ventilation unit (19) through the loRa network, start intelligent ventilation unit (19) and improve the electric power channel environment, stop working when gas concentration is higher than first threshold value in the electric power channel, otherwise, singlechip (9) judge when gas concentration is less than predetermined second threshold value in the electric power channel, send alarm signal to remote monitoring center computer (11) and/or remote mobile monitoring end (12) through loRa network and Internet 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 the intelligent execution mechanism (10) through an LoRa network, the intelligent execution mechanism (10) is started and the cable or/and the cable intermediate joint is cooled, and the work 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 the remote monitoring center computer (11) and/or the remote mobile monitoring end (12) through the LoRa network and the Internet network (6), and the operation and maintenance personnel actively control and intervene to stop working when the temperature of the cable or/and the cable intermediate joint is lower than the first threshold value, otherwise, when the single chip microcomputer (9) judges that the temperature in the electric power channel reaches a preset third threshold value, a control instruction is sent to the remote terminal device RTU (7) through the LoRa network and the Internet network (6), and an overcurrent protection relay of the remote terminal device RTU (7) is opened.
Furthermore, connect temperature measurement temperature sensor (16) for DS1820 temperature sensor (24), singlechip (9) of connecting is AT89C52 singlechip (25), and AT89C52 singlechip (25) link to each other through the RS485 bus with loRa node module (5), and the monitoring of cable running state adopts point type temperature monitoring, and a plurality of temperature sensor disposes in the important monitoring position on the cable according to the requirement dispersion of monitoring.
Furthermore, the cable temperature measuring temperature sensor (15) is a GSDTS-04-10 temperature sensor (26), the GSDTS-04-10 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 120-degree included angles.
Further, the intelligent ventilation device (19) comprises a blade motor (27) and an alternating current contactor (28).
Further, the LoRa node module (5) is an EML3047(29), the EML3047(29) includes an STM32L071(30) and an SX1278(31), wherein the STM32L071 is responsible for running of an RTOS, a LoRa protocol stack, a cloud docking protocol, an encryption algorithm and an AT instruction, and the SX1278 performs LoRa radio frequency modulation and demodulation processing. The EML3047 module scheme integrates peripheral crystal oscillator, radio frequency matching and other circuits.
Furthermore, the remote monitoring center computer (11) and the remote mobile monitoring end (12) comprise a virtual control panel (32) of the human-computer operation interface intelligent execution mechanism, and the virtual control panel is used for remotely controlling the intelligent execution mechanism (10).
Further, the three-phase unbalance adjusting device (8) comprises a load side three-phase unbalance adjusting device (33) and/or a power side three-phase unbalance adjusting device (34), the load side three-phase unbalance adjusting device (33) comprises a commutation module (35), a single chip microcomputer module (9), a signal detection module (36) and a LoRa node module (5), the input of the signal detection module (36) is connected to a three-phase electric wire, the output of the signal detection module (36) is connected with the single chip microcomputer module (9), the single chip microcomputer module (9) is connected with the LoRa node module (5) through a bus and connected to a LoRa network, the output of the single chip microcomputer module (9) is connected with a control loop of the commutation module (35), the input side of a main loop of the commutation module (35) is connected with A, B, C three-phase cables of a distribution line, the input side of the main loop of the commutation module (35) is provided with three fixed contacts and one moving, 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 phase 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 imbalance adjusting device (34) is composed of a switching action module IGBT (37), a reactor and capacitor bank (38), a singlechip module (9) and a LoRa node module (5), the switching action module IGBT (37) is connected in parallel to the three-phase cables of a power grid at the power side through a wire and a breaker, the output of the switching action module IGBT (37) is connected to the reactor and capacitor bank (38), and the singlechip module (9) is connected with the, the reactor and capacitor bank (38) sets up multiunit compensation grade in organizing, and its switching control is realized by single chip module (9), and single chip module (9) pass through bus connection loRa node module (5) to be connected to the loRa network.
The utility model has the advantages that: the utility model relates to a realized a power channel environment intelligent monitoring system based on loRa technique, including environment monitoring module, cable running state monitoring module, cable intermediate head running state monitoring module, loRa gateway basic station, loRa node module, remote terminal device 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 the environmental information of the power channel and the running state information of key parts including cables and cable intermediate joints through running, and respectively send the collected 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 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 schematic diagram of intelligent monitoring system for power channel environment based on LoRa technology
FIG. 2 is a connection diagram of environment monitoring module and LoRa node module
Fig. 3 cable intermediate head running state monitoring module and loRa node module connection diagram
Fig. 4 cable operation state monitoring module and LoRa node module connection diagram
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. 7 EML3047 node module 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 the utility model discloses an embodiment combines fig. 1 the utility model discloses a power channel environment intelligent monitoring system based on loRa technique, including environmental monitoring module (1), cable running state monitoring module (2), cable intermediate head running state monitoring module (3), loRa gateway/basic station (4), loRa node module (5), Internet6, remote terminal device RTU (7), unbalanced three-phase adjusting device (8), singlechip (9), intelligent execution mechanism (10), remote monitoring center computer (11), long-range 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 RS485 bus with loRa node module (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 is AT89C52 singlechip (25), and cable temperature measurement temperature sensor (15) are distributed optical fiber temperature sensor, GSDTS-04-10 temperature sensor (26) promptly, and AT89C52 singlechip (25) link to each other through the RS485 bus with loRa node module (5), and 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 the utility model discloses an embodiment, combine 7loRa node module (5) of figure to be EML3047(29), EML3047(29) include STM32L071(30) MCU and SX1278(31) RF IC, wherein STM32L071(30) are responsible for RTOS, loRa protocol stack, the operation of high in the clouds butt joint protocol, encryption algorithm and AT instruction, and SX1278(31) carry out loRa radio frequency modulation and demodulation processing. The EML3047 module scheme integrates peripheral crystal oscillator, radio frequency matching and other circuits.
According to an embodiment of the present invention, the unbalanced three-phase adjusting device (8) shown in fig. 8 includes a load-side unbalanced three-phase adjusting device (33) and/or a power-side unbalanced three-phase adjusting device (34), the load-side unbalanced three-phase adjusting device (33) includes a commutation module (35), a single chip module (9), a signal detection module (36) and a LoRa node module (5), the signal detection module (36) is connected to a three-phase wire, the signal detection module (36) is connected to the single chip module (9), the single chip module (9) is connected to the LoRa node module (5) through a bus and to a LoRa network, the output of the single chip module (9) is connected to a control loop of the commutation module (35), and the input side of a main loop of the commutation module (35) 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 (35) 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, the L line of the single-phase load is switched among A, B, C three-phase cables, the source side of the single-phase load is switched, the three-phase imbalance adjusting device (34) is composed of a switch action module IGBT (37), a reactor and capacitor bank (38), a single chip microcomputer module (9) and a LoRa node module (5), the switch action module IGBT (37) is connected in parallel to the three-phase cables of a power grid at the power supply side through, singlechip module (9) are connected with switch action module IGBT (37) through the wire, have set up multiunit compensation grade in reactor and capacitor bank (38) group, and its switching control is realized by singlechip module (9), and singlechip module (9) pass through bus connection loRa node module (5) and are connected to the loRa 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 an LoRa technology comprises an environment monitoring module (1), a cable running state monitoring module (2), a cable intermediate joint running state monitoring module (3), a LoRa gateway/base station (4), a LoRa node module (5), an Internet network (6), a Remote Terminal Unit (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 the power channel and used for monitoring environmental parameters, the single chip microcomputer (9) is connected with the LoRa node module (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 LoRa network and an Internet network (6) which are composed of a LoRa gateway/base station (4) and a LoRa node module (5) 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) which are respectively connected with the single chip microcomputer (9), the cable temperature measuring temperature sensors (15) are arranged on the surface of a cable and used for monitoring the surface temperature of the cable, the cable middle connector running state monitoring module (3) comprises connector temperature measuring temperature sensors (16) which are respectively connected with the single chip microcomputer (9), and the connector temperature measuring temperature sensors (16) connected with the single chip microcomputer (9) are arranged on the cable middle connector and used for monitoring the temperature of the cable middle connector, 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 respectively sent to a remote terminal device RTU (7), a three-phase unbalance adjusting device (8), an intelligent executing mechanism (10), a remote monitoring center computer (11) and a remote mobile monitoring end (12) through a LoRa network.
2. The intelligent power channel environment monitoring system based on the LoRa 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 and used for monitoring temperature and humidity, the single chip microcomputer (9) sends measurement and control information to the intelligent execution mechanism (10) through the LoRa network when judging that the temperature and humidity in the power channel reach a preset first threshold value, the intelligent ventilation device (19) and/or the intelligent cooling and dehumidifying device (20) are started, the intelligent ventilation device (19) and/or the intelligent cooling and dehumidifying device (20) stop working when the temperature and humidity in the power channel are lower than the first threshold value, and when the single chip microcomputer (9) judges that the temperature and humidity in the power channel reach a preset second threshold value, an alarm signal is sent to the remote monitoring center computer (11) and/or the remote monitoring center computer ( And the remote mobile monitoring terminal (12).
3. The intelligent power channel environment monitoring system based on the LoRa technology, 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/is 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) judges that the gas concentration in the power channel reaches a preset first threshold value, the single chip microcomputer (9) sends measurement and control information to the intelligent ventilator (19) through the LoRa network, the intelligent ventilator (19) is started, the operation is stopped when the gas concentration in the power channel is lower than the first threshold value, and 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 a LoRa network and an Internet network (6).
4. The intelligent power channel environment monitoring system based on the LoRa technology as claimed in claim 1, wherein 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), and the AT89C52 single chip microcomputer (25) is connected with the LoRa node module (5) through an RS485 bus.
5. The intelligent power channel environment monitoring system based on the LoRa technology as claimed in claim 1, wherein the cable temperature measuring temperature sensor (15) is a GSDTS-04-10 temperature sensor (26).
6. The intelligent power channel environment monitoring system based on the LoRa technology is characterized in that the LoRa node module (5) is an EML3047(29), and the EML3047(29) comprises an STM32L071(30) and an SX1278 (31).
7. The intelligent monitoring system for electric power channel environment based on LoRa technology of claim 1, wherein the remote monitoring center computer (11) and the remote mobile monitoring terminal (12) comprise a virtual control panel (32) of the man-machine interface 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 (33) and/or a power-side three-phase imbalance adjusting device (34), the load-side three-phase imbalance adjusting device (33) comprises a commutation module (35), a single chip microcomputer (9), a signal detection module (36) and a LoRa node module (5), an input end of the signal detection module (36) is connected to a three-phase electric wire, an output end of the signal detection module (36) is connected to the single chip microcomputer (9), the single chip microcomputer (9) is connected to the LoRa node module (5) through a bus and to a LoRa network, an output of the single chip microcomputer (9) is connected to a control loop of the commutation module (35), and an input side of a main loop of the commutation module (35) is connected to a, b, c, and c of a distribution line, B. C three-phase cable connection, the input side of the main loop of the phase change module (35) is provided with three static 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 static contacts and an N phase line jointly supply power for a single-phase load, the three static contacts are respectively connected with A, B, C three-phase cables of a distribution line, the moving contact can be switched among the three static 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 (34) is composed of a switch action module IGBT (37), a reactor and capacitor set (38), a singlechip (9) and a LoRa node module (5), the switch action module IGBT (37) is connected in parallel to the three-phase cables of a power grid at the power supply side through a lead and a breaker, the output of the, singlechip (9) are connected with switch action module IGBT (37) through the wire, have set up multiunit compensation grade in reactor and capacitor bank (38) group to by singlechip (9) control switching, singlechip (9) are through bus connection loRa node module (5), and are connected to the loRa network.
9. An intelligent monitoring system for electric power channel environment based on LoRa technology according to any one of claims 2-3, characterized in that the intelligent ventilation device (19) comprises a blade motor (27) and an AC contactor (28).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201921386390.5U CN212031956U (en) | 2019-08-17 | 2019-08-17 | Power channel environment intelligent monitoring system based on LoRa technology |
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| CN201921386390.5U CN212031956U (en) | 2019-08-17 | 2019-08-17 | Power channel environment intelligent monitoring system based on LoRa technology |
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| CN201921386390.5U Active CN212031956U (en) | 2019-08-17 | 2019-08-17 | Power channel environment intelligent monitoring system based on LoRa technology |
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