CN203014486U - Direct current earth electrode on-line monitoring system - Google Patents

Direct current earth electrode on-line monitoring system Download PDF

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Publication number
CN203014486U
CN203014486U CN 201220587150 CN201220587150U CN203014486U CN 203014486 U CN203014486 U CN 203014486U CN 201220587150 CN201220587150 CN 201220587150 CN 201220587150 U CN201220587150 U CN 201220587150U CN 203014486 U CN203014486 U CN 203014486U
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CN
China
Prior art keywords
direct current
line monitoring
monitoring
monitoring system
field monitoring
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.)
Expired - Fee Related
Application number
CN 201220587150
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Chinese (zh)
Inventor
谭进
唐程
郑路遥
刘刚
徐霞
谢尧平
杜雪松
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
Wuhan NARI Ltd
Original Assignee
State Grid Corp of China SGCC
Wuhan NARI 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, Wuhan NARI Ltd filed Critical State Grid Corp of China SGCC
Priority to CN 201220587150 priority Critical patent/CN203014486U/en
Application granted granted Critical
Publication of CN203014486U publication Critical patent/CN203014486U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model relates to the field of on-line monitoring system and especially relates to a direct current earth electrode on-line monitoring system. An on-line monitoring terminal of the direct current earth electrode on-line monitoring system has a data input and output module, a data communication part and a power supply part. The data input and output module converts a signal collected by an on-site monitoring unit into digital information and converts control information sent by a background control into a corresponding electrical signal. Real-time acquisition and transmission of direct current earth electrode data are realized, intellectualization of system operation and maintenance is improved, and the dedicated data input and output module is arranged at the on-line monitoring terminal to facilitate connection and extension of complex equipment.

Description

A kind of direct current grounding pole on-line monitoring system
Technical field
The utility model relates to the on-line monitoring field, relates in particular to a kind of direct current grounding pole on-line monitoring system.
Background technology
D. C. Electric transmission earthed pole is as a pith in DC transmission system, the backward channel of working direct current when being the operation of one pole loop, and its operation conditions directly has influence on the stability and security of direct current system.Grasp the operation conditions of direct current grounding pole, comprise earth electrode running environment temperature, humidity and monitor well water level etc., significant.At present the monitoring of earth electrode is adopted the mode of regularly artificial Site Detection, its drawback is: operation conditions parameter that can't the Real-time Obtaining earth electrode, simultaneously due to the most domestic direct current grounding pole all be positioned at the limit outside of the city outside, away from the urban district, make troubles for artificial operation maintenance, the field test workload is large and efficient is low.If by earth electrode location on-line monitoring, allow O﹠M department grasp in real time the operation conditions of earth electrode, in time find to exist hidden danger, assessment grounding system running status, the fail safe that improves DC engineering is had positive effect, can improve the O﹠M intellectuality simultaneously, save people's wealth and drop into.
Chinese utility model patent " a kind of earth electrode on-line monitoring system " (application number: CN201120194210.0) disclose a kind of earth electrode on-line monitoring system, consisted of by cooling-water temperature sensor, level sensor, DC current sensor, signal picker, monitoring host computer and power module, can be within the very first time with information exchange long-distance wireless telecommunications teletransmission to Surveillance center and circuit full-time staff mobile phone.But the field monitoring terminal of this equipment does not arrange special-purpose data input/output module, is not easy to connection and the expansion of complex device.
The utility model content
The purpose of this utility model is in order to overcome the deficiency of above-mentioned background technology, a kind of direct current grounding pole on-line monitoring system is provided, can access the real-time running data of direct current grounding pole, improve the intellectuality of O﹠M, and the field monitoring terminal arranges special-purpose data input/output module, is convenient to connection and the expansion of complex device.
The technical solution of the utility model is: a kind of direct current grounding pole on-line monitoring system, formed by field monitoring unit, field monitoring terminal, remote data transmission and Background control, Background control is by the data of remote data transmission collection site monitoring means and field monitoring terminal, Background control also can be controlled the operation of field monitoring unit and field monitoring terminal equipment by remote data transmission, it is characterized in that: described field monitoring terminal is divided into data input/output module, data communication part and power unit; Described data input/output module changes into digital information with the signal of field monitoring unit collection, and the control information that Background control is sent here changes into the corresponding signal of telecommunication.Its beneficial effect is: can access the real-time running data of direct current grounding pole, improve the intellectuality of O﹠M, and the field monitoring terminal arranges special-purpose data input/output module, be convenient to connection and the expansion of complex device.
Direct current grounding pole on-line monitoring system as above is characterized in that: described remote data transmission is a kind of in GSM, GPRS, 3G, Wireless microwave or Optical Fiber Transmission.Its beneficial effect is: can according to field condition, select different remote data transmission modes.
Direct current grounding pole on-line monitoring system as above is characterized in that: described field monitoring unit is comprised of temperature-humidity monitoring, the monitoring of water conservancy diversion cable current and video monitor etc.In addition, practical operation situation and maintenance requirement according to different direct current grounding poles can be equipped with other functional modules, as earth resistance monitoring system, step voltage contact potential monitoring system etc.Its beneficial effect is: can satisfy most of direct current grounding pole on-line monitoring systems to the requirement of field control and data acquisition.
Direct current grounding pole on-line monitoring system as above is characterized in that: described power unit adopts wind-photovoltaic complementary power supply system.Its beneficial effect is: can be video system and signal transmission system power supply.
Description of drawings
Fig. 1 is the structural representation of the utility model direct current grounding pole on-line monitoring system;
Fig. 2 is the field apparatus distribution map of the utility model direct current grounding pole on-line monitoring system.
Embodiment
Below in conjunction with accompanying drawing, the utility model is further described.
This monitoring system comprises field monitoring unit, field monitoring terminal, remote data transmission and Background control, can carry out monitoring and controlling to the operational outfit at scene, to realize the functions such as data acquisition, equipment control, measurement, parameter adjusting and early warning, system consists of as shown in Figure 1.
As shown in Figure 1, field monitoring mainly comprises field monitoring unit and field monitoring terminal.Field monitoring unit comprises temperature-humidity monitoring, the monitoring of water conservancy diversion cable current and video monitor etc.The field monitoring terminal is divided into data input/output module, data communication part and power unit.The core of field monitoring terminal is the data input/output modules, mainly contain two functions: the one, the analog electrical signals such as temperature, humidity and video image are changed into digital information by the data input/output module, and these Preserving Electronic Information in the Flash internal memory of remote data terminal (RTU), and be sent in the computer of Surveillance center by wireless network at the appropriate time; The 2nd, the control information that Surveillance center's computer is sent changes into the corresponding signal of telecommunication by the data input/output module, is transported to the field monitoring unit of front end, to complete control procedure.The main exchanges data of being responsible between wire communication and wireless telecommunications device of data communication part.The power acquisition wind-photovoltaic complementary power supply system is video system and signal transmission system power supply.
As shown in Figure 1, remote data transmission is the signal transmitting and receiving terminal, mainly contains several communication modes such as GSM, GPRS, 3G, Wireless microwave and optical fiber.According to the actual conditions at scene and client's demand, select different data transfer modes, the mode of recommendation has wireless microwave telecommunication system and optical fiber etc.
As shown in Figure 1, Background control partly is mainly display control terminal, is responsible for managing concentratedly and commanding the operation of whole supervisory control system.Backstage on-line monitoring early warning running software coordinates to complete the data communication task with each field data terminal on server; And then the processes such as the various data of hardware system collection such as temperature, humidity, electric current are calculated shown the reference for operating personnel with reasonable manner; It also has the functions such as condition diagnosing and automatic failure alarm in addition.For the video monitoring backstage, be mainly integrated image monitoring, security, fire-fighting, device security etc.
The field apparatus Distributed Implementation of direct current grounding pole on-line monitoring system is for example shown in Figure 2.
In the direct current grounding pole on-line monitoring system embodiment that the utility model provides, field monitoring unit has three functions, comprising: Soil Temperature-Moisture Monitoring System Based, water conservancy diversion cable current monitoring system and low-light (level) video acquisition system.
In Soil Temperature-Moisture Monitoring System Based, Temperature Humidity Sensor is fixed in detection case, with near the temperature and humidity of the soil monitoring feed rod, notes avoiding the coke with below pvc pipe to contact.The signals collecting box is fixed on detection case inside.Temperature Humidity Sensor data wire and signals collecting box are to inserting.Sensing data to main control part, and is transferred to long-range backstage by the wireless base station by the CAN bus transfer, realizes measured point humiture Real-time Collection.Acquisition precision is adjustable, and acquisition strategies is configurable.
What water conservancy diversion cable current monitoring system adopted is Hall element DC measurement instrument, and the open loop measuring principle converts measured DC to the direct current of output in proportion or the measurement module of direct voltage, high-insulation between former secondary.Have the advantages that pinpoint accuracy, high linearity, high integration, volume are little, simple in structure, long-term work stable and adapt to various operational environments.Current sensor will be arranged on the cable copper bar junction in the earth electrode detection case.
The wide visual angle of low-light (level) video acquisition system employing low-light (level) technical grade camera carries out video acquisition to isolating switch, in conjunction with video analysis processing server equipment, the folding condition of isolating switch is monitored and is analyzed.The environment different according to the erecting bed adopts the protector of different brackets that camera is protected.For satisfying the demand of full weather work, protective cover has function, the ultrasonic wave+static automatic dedusting function that the nesa coating heating film is removed frost automatically, and polariscope+auto iris is eliminated the functions such as direct sunlight impact.
Wind-photovoltaic complementary power supply system is adopted in power supply to field apparatus.In the present embodiment, system will be equipped with five cover wind and solar hybrid generating systems, and wherein to lay respectively at four branch tower places be transducer power supply in detection case and monitor well to quadruplet, separately has a cover to be positioned at terminal tower, is the power supply of video system and signal transmission system.Blower fan and solar panel are located at installing rack in vertical rod, and battery pack is sealed with special sheath and is embedded in soil.The wind and light complementary power supply management system is designed to overcast and rainy day continuous operation in 15 days.
The overlength distance wireless communication system adopts IEEE 802.16d standard, is operated in the high-speed radio Ethernet bridge on the 5.8GHz frequency range, supports the network configuration of point-to-point (PTP) and point-to-multipoint (PMP).In addition, this communication system has the communication capacity under non line of sight NLOS environment, and antenna sound alignment function and autodiagnosis ability, has effectively solved the most difficult installation allocation problem in the wireless network installation, makes its installation and maintenance simple and easy to do.In the limited practical application scene of sighting distance, the mode that we can adopt span centre to continue and connect, thus realize communication and management function between longer distance and wider radio node.Wireless transmission and control appliance will be arranged in the mainframe box of sealing, can be rainproof antifreeze, and mainframe box is installed on terminal tower.The data of each current sensor and Temperature Humidity Sensor will be packed to the terminal tower data processing terminal by wireless way for transmitting and be processed and send.
On-line monitoring early warning software in backstage is managed concentratedly contact humiture data, cable current information and the image scene video of front end, for system provides friendly human-machine interface.The memory capacity of background server is easily expanded, and daemon software can be stored jumbo historical data and video, and can realize remote access.But this daemon software and dispatching patcher on-line operation, after monitoring abnormal humiture, regional invasion, unit exception or current imbalance fault, this daemon software can carry out sound and light alarm at once to be processed, and reaches the effect of prevention and early warning.This system adopts Web Service framework in addition, can provide online system mode to browse (humiture, cable current, video) and extendible SDK development interface, and the interface of standard is provided for the standardized extensions of subsequent product.
The above is only embodiments of the invention, is not limited to the present invention, and for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any modification of doing, be equal to replacement, improvement etc., within all should being included in claim scope of the present invention.
The content that is not described in detail in this specification belongs to the known prior art of this area professional and technical personnel.

Claims (4)

1. direct current grounding pole on-line monitoring system, formed by field monitoring unit, field monitoring terminal, remote data transmission and Background control, Background control is by the data of remote data transmission collection site monitoring means and field monitoring terminal, Background control also can be controlled the operation of field monitoring unit and field monitoring terminal equipment by remote data transmission, it is characterized in that: described field monitoring terminal is divided into data input/output module, data communication part and power unit; Described data input/output module changes into digital information with the signal of field monitoring unit collection, and the control information that Background control is sent here changes into the corresponding signal of telecommunication.
2. direct current grounding pole on-line monitoring system as claimed in claim 1 is characterized in that: described remote data transmission is a kind of in GSM, GPRS, 3G, Wireless microwave or Optical Fiber Transmission.
3. direct current grounding pole on-line monitoring system as claimed in claim 1 is characterized in that: described field monitoring unit is comprised of temperature-humidity monitoring, the monitoring of water conservancy diversion cable current and video monitor.
4. as claim 1,2 or 3 described direct current grounding pole on-line monitoring systems, it is characterized in that: described power unit adopts wind-photovoltaic complementary power supply system.
CN 201220587150 2012-11-09 2012-11-09 Direct current earth electrode on-line monitoring system Expired - Fee Related CN203014486U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201220587150 CN203014486U (en) 2012-11-09 2012-11-09 Direct current earth electrode on-line monitoring system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201220587150 CN203014486U (en) 2012-11-09 2012-11-09 Direct current earth electrode on-line monitoring system

Publications (1)

Publication Number Publication Date
CN203014486U true CN203014486U (en) 2013-06-19

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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103852694A (en) * 2014-03-28 2014-06-11 江苏省电力公司常州供电公司 Power cable intelligent grounding box
CN103913252A (en) * 2014-03-17 2014-07-09 中国南方电网有限责任公司超高压输电公司检修试验中心 High-voltage direct current power transmission system grounding electrode temperature field monitoring system and method
CN103913655A (en) * 2014-03-17 2014-07-09 中国南方电网有限责任公司超高压输电公司检修试验中心 Direct-current common grounding electrode state monitoring system and state assessment method
CN104505932A (en) * 2014-10-21 2015-04-08 国家电网公司 Electric power line monitoring network terminal
CN105628103A (en) * 2016-02-29 2016-06-01 国家电网公司 High-voltage DC transmission system earth electrode state monitoring device
CN105908192A (en) * 2016-06-30 2016-08-31 中国石油集团川庆钻探工程有限公司工程技术研究院 Online remote monitoring system and method for oil-water well pipe sleeve cathode protection
CN108982989A (en) * 2018-05-28 2018-12-11 国网内蒙古东部电力有限公司检修分公司 Extra-high voltage DC grounding electrode operating status assessment system based on multi-characteristicquantity quantity information
CN112593913A (en) * 2019-11-27 2021-04-02 四川北斗星河科技有限公司 Intelligent lifting system for gas field gathering and transportation

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103913252A (en) * 2014-03-17 2014-07-09 中国南方电网有限责任公司超高压输电公司检修试验中心 High-voltage direct current power transmission system grounding electrode temperature field monitoring system and method
CN103913655A (en) * 2014-03-17 2014-07-09 中国南方电网有限责任公司超高压输电公司检修试验中心 Direct-current common grounding electrode state monitoring system and state assessment method
CN103913655B (en) * 2014-03-17 2015-12-30 中国南方电网有限责任公司超高压输电公司检修试验中心 A kind of direct current One Common Earthing Electrode condition monitoring system and state evaluating method
CN103852694A (en) * 2014-03-28 2014-06-11 江苏省电力公司常州供电公司 Power cable intelligent grounding box
CN104505932A (en) * 2014-10-21 2015-04-08 国家电网公司 Electric power line monitoring network terminal
CN105628103A (en) * 2016-02-29 2016-06-01 国家电网公司 High-voltage DC transmission system earth electrode state monitoring device
CN105908192A (en) * 2016-06-30 2016-08-31 中国石油集团川庆钻探工程有限公司工程技术研究院 Online remote monitoring system and method for oil-water well pipe sleeve cathode protection
CN105908192B (en) * 2016-06-30 2018-02-06 中国石油集团川庆钻探工程有限公司工程技术研究院 A kind of online remote monitoring system of oil-water well pipe sleeve cathodic protection and method
CN108982989A (en) * 2018-05-28 2018-12-11 国网内蒙古东部电力有限公司检修分公司 Extra-high voltage DC grounding electrode operating status assessment system based on multi-characteristicquantity quantity information
CN112593913A (en) * 2019-11-27 2021-04-02 四川北斗星河科技有限公司 Intelligent lifting system for gas field gathering and transportation

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C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20130619

Termination date: 20201109