CN105978737B - Terminal 'crash' fault removing device for network cable transmission IP address positioning - Google Patents

Terminal 'crash' fault removing device for network cable transmission IP address positioning Download PDF

Info

Publication number
CN105978737B
CN105978737B CN201610530328.3A CN201610530328A CN105978737B CN 105978737 B CN105978737 B CN 105978737B CN 201610530328 A CN201610530328 A CN 201610530328A CN 105978737 B CN105978737 B CN 105978737B
Authority
CN
China
Prior art keywords
power supply
relay
terminal
electric energy
address
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.)
Active
Application number
CN201610530328.3A
Other languages
Chinese (zh)
Other versions
CN105978737A (en
Inventor
李凯
刁玉建
陈敬娟
尹新明
彭静
任杰
许一丹
李纯玉
张萍
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
State Grid Corp of China SGCC
Laiwu Power Supply Co of State Grid Shandong Electric Power Co Ltd
Original Assignee
State Grid Corp of China SGCC
Laiwu Power Supply Co of State Grid Shandong Electric Power Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by State Grid Corp of China SGCC, Laiwu Power Supply Co of State Grid Shandong Electric Power Co Ltd filed Critical State Grid Corp of China SGCC
Priority to CN201610530328.3A priority Critical patent/CN105978737B/en
Publication of CN105978737A publication Critical patent/CN105978737A/en
Application granted granted Critical
Publication of CN105978737B publication Critical patent/CN105978737B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L41/00Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
    • H04L41/06Management of faults, events, alarms or notifications
    • H04L41/0654Management of faults, events, alarms or notifications using network fault recovery
    • H04L41/0659Management of faults, events, alarms or notifications using network fault recovery by isolating or reconfiguring faulty entities
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00Data switching networks
    • H04L12/02Details
    • H04L12/12Arrangements for remote connection or disconnection of substations or of equipment thereof
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L41/00Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
    • H04L41/06Management of faults, events, alarms or notifications
    • H04L41/0654Management of faults, events, alarms or notifications using network fault recovery
    • H04L41/0659Management of faults, events, alarms or notifications using network fault recovery by isolating or reconfiguring faulty entities
    • H04L41/0661Management of faults, events, alarms or notifications using network fault recovery by isolating or reconfiguring faulty entities by reconfiguring faulty entities
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L41/00Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
    • H04L41/06Management of faults, events, alarms or notifications
    • H04L41/0677Localisation of faults
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L67/00Network arrangements or protocols for supporting network services or applications
    • H04L67/01Protocols
    • H04L67/02Protocols based on web technology, e.g. hypertext transfer protocol [HTTP]
    • H04L67/025Protocols based on web technology, e.g. hypertext transfer protocol [HTTP] for remote control or remote monitoring of applications
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02DCLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00Reducing energy consumption in communication networks
    • Y02D30/50Reducing energy consumption in communication networks in wire-line communication networks, e.g. low power modes or reduced link rate

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Small-Scale Networks (AREA)
  • Data Exchanges In Wide-Area Networks (AREA)
  • Remote Monitoring And Control Of Power-Distribution Networks (AREA)

Abstract

The invention discloses a terminal 'crash' fault removal device for positioning a network cable transmission IP address, which comprises a main station computer, a switch, a terminal and a power supply plug board, wherein the main station computer is connected with the switch through a network cable; the method is characterized in that: a relay, a control circuit board thereof and a power supply control module are arranged in the power supply inserting plate; the relay control circuit is connected with a data processing module of the singlechip; the single chip microcomputer is provided with a data processing module, a TCP network protocol unit and an IP address; the TCP network protocol unit controls the on-off action of the relay, and the power supply of the gateway electric energy terminal is controlled to be turned off or restarted. The device, the circuit principle is simple, address password can quick accurate affirmation, do not receive external environment condition's restriction, the action is reliable, the cost of manufacture is low, the installation is easy, when the terminal takes place "crash" trouble, can be effective, timely realize the terminal power restart through remote control, realize getting rid of fast, avoided the time delay and the long-time interrupt of passageway.

Description

Terminal 'crash' fault removing device for network cable transmission IP address positioning
Technical Field
The invention relates to an improvement of a shutdown fault of a gateway electric energy terminal in an unattended transformer substation through a terminal power supply restart exhaust device, in particular to a terminal 'shutdown' fault elimination device for positioning a network cable transmission IP address.
Background
The gateway electric energy terminal (hereinafter referred to as a terminal) is a remote acquisition, storage and remote transmission device, is a communication center of electric energy data, has the function of storing the electric energy data of an electric energy meter, and simultaneously transmits the data to a main station of an electric energy charging automation system through an uplink channel, and has an important position. Due to the fact that the working property of the terminal requires 24 hours of uninterrupted working, the terminal can be halted when the terminal of different manufacturers and different models has too long running time. The phenomenon of 'crash' can be known through abnormal alarm of data acquisition of the electricity utilization information acquisition system. The method for eliminating the terminal 'dead halt' fault is generally restart after power failure. The disadvantages of this approach are: as the transformer substation is unattended, faults cannot be eliminated in time, so that the accidents are enlarged, and the accident treatment is delayed; because the 'dead halt' faults occur frequently, the time is delayed when people are dispatched to the site and discharged, and the channel is interrupted for a long time.
Aiming at the 'crash' fault of communication equipment, the domestic literature introduces the principles of some remote restarting devices, the principles are realized by adopting a single chip microcomputer to control a relay, and some devices adopt an optical terminal line channel, a digital encoder and a controller, but the circuit principles are complex, the address password is difficult to verify, the cost is high, and the remote restarting devices are difficult to be used for gateway electric energy terminals.
It can be known through retrieval, in order to overcome the defects of the above technologies, chinese patent 201510592223.6 discloses a "device for remotely restarting a power supply of a substation communication manager", which comprises a communication manager, an alternating current relay, a telephone switch and a telephone switch background server, wherein the telephone switch background server is connected with the telephone switch. The disadvantages of this method are: because the telephone line is controlled by the post and telecommunications department, the telephone line can be connected only by paying to the post and telecommunications department regularly, and if the payment is forgotten, the telephone line is shut down, so that the method cannot be implemented; since the telephone line junction box is exposed, failures often occur, resulting in the elimination of false terminal failures.
Disclosure of Invention
The invention aims to provide a terminal 'crash' fault removing device which can solve the terminal 'crash' fault by remotely controlling the power supply of a terminal to be closed and restarted, has simple circuit principle, quick and accurate address password identification, low cost, no limitation of external environmental conditions and special use for the network cable transmission IP address positioning of a gateway electric energy terminal.
In order to achieve the above purposes, the technical scheme adopted by the invention is as follows: the terminal 'crash' fault removal device for network cable transmission IP address positioning comprises a main station computer, a switch in a transformer substation, a gateway electric energy terminal and a power supply plug board, wherein one end of the power supply plug board is connected with a 220V power line, the power line of the gateway electric energy terminal is connected with a socket JP1 of the power supply plug board, and a 220V working power supply is provided for the gateway electric energy terminal; the master station computer is connected with a switch in the transformer substation through a data line; the method is characterized in that: a relay and a control circuit board of the relay are arranged in one end of the power supply inserting plate, a normally open contact JDQ of the relay is connected into a base of an inserting port JP1 of the power supply inserting plate, normally closed contacts at two ends of a coil of the relay are connected with a diode D4148 in parallel, one end of the normally closed contact is connected with a collector electrode of a triode Q-NPN-9013 on the control circuit board of the relay, and the other end of the normally closed contact is connected with a +5V direct-current working power supply; the control circuit of the relay comprises a triode Q-NPN-9013, a diode D4148, an operation indicator light LED and a resistor R1, wherein the resistor R1 and the operation indicator light LED are connected in series and then are connected with the base electrode of the triode Q-NPN-9013, and the input end of the resistor R1 is connected with the 16 th pin of a CPU of the singlechip; the main station computer is internally provided with matched maintenance software and is connected to the switch, and the switch is connected with an interface RJ45 of the single chip microcomputer through a data line; the emitting electrode of the triode Q-NPN-9013 is grounded; the single chip microcomputer is provided with a data processing module CPU, a TCP network protocol unit and an IP address.
The invention is also implemented by the following measures: the +5V direct current working power supply control module is arranged in the power supply plug board, one end of the +5V direct current working power supply control module is connected with a 220V power supply, and the +5V direct current working power supply is output and input into the relay after filtering, voltage transformation and voltage stabilization.
The power supply inserting plate is also provided with a standby inserting opening JP2.
And the matched maintenance software in the main station computer sends instructions through the local area network main station and the switches in the transformer substation, the instructions are transmitted to the TCP network protocol unit in the single chip microcomputer, and the TCP network protocol unit controls the switching action of the relay to realize the control of the power supply of the gateway electric energy terminal to be turned off or restarted.
The supporting maintenance software, the TCP network protocol unit and the data processing module CPU are common means for technicians in the same technical field, so that the number of the supporting maintenance software, the TCP network protocol unit and the data processing module CPU is not more than that.
The IP address has uniqueness, and each gateway electric energy terminal is configured with the unique IP address; and the matched maintenance software in the main station computer has a safety authentication function, and an unauthorized user has no right to operate the remote fault removal device.
The invention has the beneficial effects that: compared with the existing 'crash' fault removal device, the terminal 'crash' fault removal device for the network cable transmission IP address positioning not only can solve the problem of terminal 'crash' fault through remotely controlling the power supply of the terminal to be turned off and restarted, but also has the advantages of simple circuit principle, quick and accurate address password identification, no limitation by external environmental conditions, reliable action, low manufacturing cost and easy installation. Can be exclusively used in the quick elimination of the trouble of gate electric energy terminal "crash" of unmanned on duty transformer substation, avoid the long-time interrupt of the mistake of time and passageway.
Drawings
Fig. 1 is a schematic block diagram of the structural function implementation principle of the present invention.
FIG. 2 is a schematic top view of a power strip of the present invention.
Fig. 3 is a schematic diagram of a relay disconnection and restart circuit in the structural power supply patch of the present invention.
Fig. 4 is a schematic diagram of a +5V dc working power supply circuit of the structural relay of the present invention.
Fig. 5 is a schematic diagram of a CPU pin circuit of the structural single chip microcomputer of the present invention.
Detailed Description
Examples
Fig. 1, 2, 3, 4, 5 show an embodiment of the invention. The present invention was made with reference to fig. 1, 2, 3, 4, and 5. The terminal 'crash' fault removing device for network cable transmission IP address positioning comprises a main station computer 1, an exchanger 2 in a transformer substation, a gateway electric energy terminal 3 and a power supply inserting plate 4, wherein one end of the power supply inserting plate 4 is connected with a 220V power supply line, the power supply line of the gateway electric energy terminal 3 is connected with a socket JP1 of the power supply inserting plate 4, and a 220V working power supply is provided for the gateway electric energy terminal 3; the master station computer 1 is connected with the switch 2 in the transformer substation through a data line; the method is characterized in that: a relay 5 and a control circuit board 6 of the relay 5 are arranged in one end of the power supply inserting plate 4, a normally open contact JDQ of the relay 5 is connected into a base of a socket JP1 of the power supply inserting plate 4, normally closed contacts at two ends of a coil of the relay 5 are connected with a diode D4148 in parallel, one end of the normally closed contact is connected with a collector of a triode Q-NPN-9013 on the control circuit board 6 of the relay 5, and the other end of the normally closed contact is connected with a +5V direct-current working power supply; the control circuit of the relay 5 comprises a triode Q-NPN-9013, a diode D4148, an operation indicator light LED and a resistor R1, the resistor R1 and the operation indicator light LED are connected in series and then are connected with the base electrode of the triode Q-NPN-9013, and the input end of the resistor R1 is connected with the 16 th pin of the CPU of the singlechip 7; the main station computer 1 is internally provided with matched maintenance software and is connected to the switch 2, and the switch 2 is connected with an interface RJ45 of the singlechip 7 through a data line; when a +5V direct-current working power supply supplies power to the relay 5, two normally open contacts JDQ of the relay 5 are conducted, and the closed electric energy terminal 3 is connected with a 220V power supply to start working; when the +5V direct-current working power supply of the relay 5 stops, the two normally-open contacts JDQ are not closed, the gateway electric energy terminal 3 stops supplying power, and the gateway electric energy terminal 3 is turned off; the emitting electrode of the triode Q-NPN-9013 is grounded; the single chip microcomputer 7 is provided with a data processing module CPU, a TCP network protocol unit and an IP address.
As an improvement of the invention: the control module 8 of the +5V direct current working power supply is arranged in the power supply inserting plate 4, one end of the control module is connected with a 220V power supply, and the control module outputs the +5V direct current working power supply through filtering, voltage transformation and voltage stabilization and inputs the power supply into the relay 5.
And a standby socket JP2 is also arranged on the power supply inserting plate 4.
And the matched maintenance software in the main station computer 1 sends instructions through the local area network main station and the switch 2 in the transformer substation, the instructions are transmitted to the TCP network protocol unit in the singlechip 7, and the TCP network protocol unit controls the on-off action of the relay 5 to realize the power supply turn-off or restart of the gateway electric energy terminal 5.
The supporting maintenance software, the TCP network protocol unit and the data processing module CPU are common means of technicians in the same technical field, so that the number of the supporting maintenance software, the TCP network protocol unit and the data processing module CPU is not more than that.
The IP address has uniqueness, and each gateway electric energy terminal 3 is configured with the unique IP address; the supporting maintenance software in the master station computer 1 has a safety authentication function, and an unauthorized user does not have the right to operate the remote fault removal device.
The working principle of the invention is as follows: under the normal working condition of the gateway electric energy terminal 3, the +5V direct-current working power supply provides a working power supply for the relay 5, the two normally-open contacts JDQ are conducted, a 220V working power supply is provided for the gateway electric energy terminal 3, and the gateway electric energy terminal continuously operates. When the gateway electric energy terminal 3 is in a 'dead halt', a TCP network protocol unit in the singlechip 7 sends an abnormal alarm signal and marks an IP address of the gateway electric energy terminal; the abnormal alarm sent by the local area network master station through the data of the electric information acquisition system is immediately acquired by the matched maintenance software in the master station computer 1, the gateway electric energy terminal 3 with the 'dead halt' can be accurately found by inputting the IP address of corresponding equipment into the maintenance software in the master station computer 1, the 'dead halt' of the gateway electric energy terminal 3 with the IP address can be judged, a master station worker operates the master station computer 1 to firstly send a power-off instruction through the local area network master station and the switch 2 in the transformer substation, the +5V direct current working power supply is disconnected, the LED operation indicator lamp is turned off, the base of the triode Q-NPN-9013 is low, the normally closed coil contact of the relay 5 is uncharged, and the two normally open contacts JDQ of the relay 5 are disconnected, so that the 220V working power supply of the gateway electric energy terminal 3 is disconnected, and the gateway electric energy terminal 3 is turned off; and then, the main station computer 1 is operated to send a power-on command through the local area network main station and the switch 2 in the transformer substation, the +5V direct-current working power supply is switched on, the LED operation indicator lamp is turned on, the base of the triode Q-NPN-9013 is in a high level, the normally closed contact of the coil of the relay 5 is electrified, and the two normally open contacts JDQ of the relay 5 are switched on, so that the power line of the gateway electric energy terminal 3 is switched off and is restored to be switched on, the gateway electric energy terminal 3 is restarted, and the 'dead halt' fault of the gateway electric energy terminal 3 is discharged.
This example has been tried out by the company to prove that: the remote elimination of the 'crash' fault of the terminal can be realized.

Claims (1)

1. A terminal 'crash' fault removal device for network cable transmission IP address positioning comprises a main station computer (1), an exchanger (2) in a transformer substation, a gateway electric energy terminal (3) and a power plug board (4), wherein one end of the power plug board (4) is connected with a 220V power line, the power line of the gateway electric energy terminal (3) is connected with a socket (JP 1) of the power plug board (4), and a 220V working power supply is provided for the gateway electric energy terminal (3); the master station computer (1) is connected with a switch (2) in the transformer substation through a data line; the method is characterized in that: a relay (5) and a control circuit board (6) of the relay (5) are arranged in one end of the power supply inserting plate (4), a normally open contact (JDQ) of the relay (5) is connected into a base of a socket (JP 1) of the power supply inserting plate (4), after being connected in parallel with a diode (D4148), normally closed contacts at two ends of a coil of the relay (5), one end of each normally closed contact is connected with a collector electrode of a triode (Q-NPN-9013) on the control circuit board (6) of the relay (5), and the other end of each normally closed contact is connected with a +5V direct-current working power supply; the control circuit of the relay (5) comprises a triode (Q-NPN-9013), a diode (D4148), an operation indicator Lamp (LED) and a resistor (R1), the resistor (R1) and the operation indicator Lamp (LED) are connected in series and then are connected with a base electrode of the triode (Q-NPN-9013), and the input end of the resistor (R1) is connected with a CPU 16 th pin of the singlechip (7); the main station computer (1) is internally provided with matched maintenance software and is connected to the switch (2), and the switch (2) is connected with an interface (RJ 45) of the singlechip (7) through a data line; the emitting electrode of the triode (Q-NPN-9013) is grounded; the single chip microcomputer (7) is provided with a data processing module CPU, a TCP network protocol unit and an IP address;
the control module (8) of the +5V direct current working power supply is arranged in the power supply inserting plate (4), one end of the control module is connected with a 220V power supply, and the control module outputs the +5V direct current working power supply after filtering, voltage transformation and voltage stabilization and inputs the power supply into the relay (5);
the power supply inserting plate (4) is also provided with a standby socket (JP 2);
the matched maintenance software in the master station computer (1) sends out an instruction through the local area network master station and the switch (2) in the transformer substation, the instruction is transmitted to the TCP network protocol unit in the singlechip (7), and the TCP network protocol unit controls the on-off action of the relay (5) to control the power supply of the gateway electric energy terminal (3) to be turned off or restarted;
the IP address has uniqueness, and each gateway electric energy terminal (3) is configured with the unique IP address; the matched maintenance software in the main station computer (1) has a safety authentication function, and an unauthorized user does not have the right to operate the remote fault removal device.
CN201610530328.3A 2016-07-07 2016-07-07 Terminal 'crash' fault removing device for network cable transmission IP address positioning Active CN105978737B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201610530328.3A CN105978737B (en) 2016-07-07 2016-07-07 Terminal 'crash' fault removing device for network cable transmission IP address positioning

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201610530328.3A CN105978737B (en) 2016-07-07 2016-07-07 Terminal 'crash' fault removing device for network cable transmission IP address positioning

Publications (2)

Publication Number Publication Date
CN105978737A CN105978737A (en) 2016-09-28
CN105978737B true CN105978737B (en) 2022-12-09

Family

ID=56955189

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201610530328.3A Active CN105978737B (en) 2016-07-07 2016-07-07 Terminal 'crash' fault removing device for network cable transmission IP address positioning

Country Status (1)

Country Link
CN (1) CN105978737B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110212639B (en) * 2019-04-04 2021-08-03 国网山东省电力公司济宁供电公司 Offline local automatic restart controller and restart method for electric energy remote transmission terminal
CN111010432A (en) * 2019-12-09 2020-04-14 紫光云(南京)数字技术有限公司 Network control system capable of remotely restarting PC

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6298449B1 (en) * 1998-07-29 2001-10-02 Siemens Information And Communication Networks, Inc. Apparatus and method for high reliability PC platform telecommunications systems
CN103777539A (en) * 2012-10-22 2014-05-07 北京国通创安报警网络技术有限公司 System self-repairing controller
CN203732979U (en) * 2014-03-13 2014-07-23 孙常青 Long-distance multiport power source restart control device

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6298449B1 (en) * 1998-07-29 2001-10-02 Siemens Information And Communication Networks, Inc. Apparatus and method for high reliability PC platform telecommunications systems
CN103777539A (en) * 2012-10-22 2014-05-07 北京国通创安报警网络技术有限公司 System self-repairing controller
CN203732979U (en) * 2014-03-13 2014-07-23 孙常青 Long-distance multiport power source restart control device

Also Published As

Publication number Publication date
CN105978737A (en) 2016-09-28

Similar Documents

Publication Publication Date Title
TWI510934B (en) Device management module, remotely management module and device management system employing same
CN105302263A (en) Circuit with automatic power-off restarting function in equipment failure
CN102130508A (en) Wireless network-based substation grounding wire intelligent management system
CN105978737B (en) Terminal 'crash' fault removing device for network cable transmission IP address positioning
CN105449633A (en) Over/under voltage protection system of electrical equipment
CN104264770A (en) Power distribution room water logging alarming and automatic draining system and control method thereof
CN104092062A (en) Intelligent power socket, network device system and control method
CN106787219B (en) Automation of transformation substations equipment fault judgement and self-healing method
CN102904330A (en) Power supply unit for standby power auto-switching devices of transformer substations
CN109743365B (en) Method, device and system for monitoring power transmission line
CN108199477B (en) Remote intelligent monitoring method and equipment for faults of AC/DC system of transformer substation
CN105449857B (en) The anti-electric gas-tight lock system of ground control and method
CN105260220A (en) Remote rebooting system and method for comprehensive automatic system protocol conversion device
CN112631219A (en) Remote intelligent circuit breaker control system
CN201975861U (en) Wireless-network-based intelligent management system for grounding wire of transformer station
CN203232270U (en) Automatic restart system of electrical energy collection terminal of transformer station
CN115940412A (en) Power utilization control management method and device, electronic equipment and storage medium
CN107845930A (en) Intelligent control socket based on power wire broadband carrier technology
CN203849611U (en) Power supply cabinet for train
CN213343146U (en) A stop compound electricity heat abstractor for distribution automation terminal
CN209963834U (en) Control device for remotely and automatically restarting remote motor
CN209860577U (en) Electricity consumption facility leakage protection and electricity consumption safety monitoring system
CN204465142U (en) Ac and dc systems O&M systematic management system
CN110289684B (en) Automatic restart control equipment and method for microcomputer device
CN203965973U (en) Constant temperature and humidity type distribution automation on-pole switch cabinet

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant