CN105785203A - Remote intelligent diagnostic device for power transmission line monitoring equipment - Google Patents
Remote intelligent diagnostic device for power transmission line monitoring equipment Download PDFInfo
- Publication number
- CN105785203A CN105785203A CN201610304736.7A CN201610304736A CN105785203A CN 105785203 A CN105785203 A CN 105785203A CN 201610304736 A CN201610304736 A CN 201610304736A CN 105785203 A CN105785203 A CN 105785203A
- Authority
- CN
- China
- Prior art keywords
- sensor
- transmission line
- monitoring
- server
- communication module
- 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.)
- Granted
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R35/00—Testing or calibrating of apparatus covered by the other groups of this subclass
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/048—Monitoring; Safety
-
- G—PHYSICS
- G08—SIGNALLING
- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C17/00—Arrangements for transmitting signals characterised by the use of a wireless electrical link
- G08C17/02—Arrangements for transmitting signals characterised by the use of a wireless electrical link using a radio link
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Computer Networks & Wireless Communication (AREA)
- Remote Monitoring And Control Of Power-Distribution Networks (AREA)
- Telephonic Communication Services (AREA)
Abstract
The invention discloses a remote intelligent diagnostic device for power transmission line monitoring equipment, and the device comprises monitoring equipment and a server controller. The monitoring equipment comprises a power module, a power parameter detection circuit, a sensor, a signal processing circuit, a sensor diagnosis circuit, a microprocessor, and a wireless communication module A. The server controller comprises a wireless communication module B and a server. The monitoring equipment carries out the online monitoring of a power transmission line, and enables the monitoring data to be uploaded to the server. A monitoring worker carries out the monitoring of the operation condition of the monitoring equipment through the server, and controls the monitoring equipment to carry out fault diagnosis. Meanwhile, the monitoring equipment enables a fault code to be uploaded to the server. The device is simple in structure, is convenient to operate, carries out the remote monitoring of the operation condition of the power transmission line, achieves the real-time remote monitoring and diagnosis of the operation condition of the monitoring equipment, greatly reduces the maintenance difficulty and workload of the power transmission line, and improves the efficiency of maintenance.
Description
Technical field
The present invention relates to technology of Internet of things field, especially a kind of power transmission line Link Monitor Equipment long-distance intelligent diagnostic equipment.
Background technology
In recent years, development along with electric network information technology, electrical network maintenance work occurs in that transmission line online monitoring system, this system is mainly used for, by the monitoring equipment being arranged on transmission line of electricity, the operating condition of transmission line of electricity is carried out remote monitoring maintenance, it is substantially reduced difficulty and the workload of transmission line of electricity maintenance work, and improves the efficiency of maintenance work.But, in actual use, existing on-line monitoring system also exists monitoring, and equipment fault happens occasionally, failure cause cannot diagnose, some problems such as maintenance work amount is big to monitoring equipment, this has also had a strong impact on the on-line monitoring system long-range monitoring to transmission line of electricity, a kind of intelligent diagnostics device is provided for this, can the monitoring equipment of real-time diagnosis on-line monitoring system, to guarantee that the operating condition to transmission line of electricity carries out remote monitoring maintenance, and the efficiency improving maintenance work is just particularly important.
Summary of the invention
Present invention aim to solve in electrical network maintenance work, existing on-line monitoring system also exists monitoring, and equipment fault happens occasionally, failure cause cannot diagnose, to some problems such as the maintenance work amount of equipment are big, a kind of power transmission line Link Monitor Equipment long-distance intelligent diagnostic equipment is provided for this.
The concrete scheme of the present invention is: the power transmission line Link Monitor Equipment long-distance intelligent diagnostic equipment, it is characterized in that: include the monitoring equipment for monitoring transmission line of electricity operating condition and server side controller；Described monitoring equipment includes power module, power parameter testing circuit, sensor, signal processing circuit, sensor diagnostics circuit and microprocessor and wireless communication module A；Described server end controller includes wireless communication module B and server；
Described power module provides working power for monitoring equipment；
Described power parameter testing circuit is for detecting the voltage of power module, electric current and information about power and these information being transferred to microprocessor；
Described sensor is provided with multiple, for gathering the current image data information of transmission line of electricity and meteorological data information；
Described signal processing circuit for by each sensor acquisition to information carry out analog digital conversion after be transferred to microprocessor；
Described sensor diagnostics circuit is for detecting the outside running voltage of each sensor, electric current and inner parameter, and these data are transferred to microprocessor；
Described microprocessor by each sensor acquisition to the current information of transmission line of electricity pass sequentially through wireless communication module A, wireless communication module B is transferred to server, and it is provided with fault detection program and failure code in the microprocessor, the data message that microprocessor transmits according to power parameter testing circuit and sensor diagnostics circuit, duty by fault detection program comprehensive descision power module He each sensor, when power module or sensor failure, by wireless communication module A, wireless communication module B uploads corresponding failure code to server；
Described server is with consulting the current image data information of transmission line of electricity and meteorological data information and the failure code uploaded from microprocessor for monitoring personnel, and the personnel that monitor are by server amendment fault detection program and failure code, remotely control monitoring equipment simultaneously and carry out fault detect and upload failure code
Heretofore described microprocessor is equipped with clock chip and memory module；Described signal processing circuit is A/D change-over circuit；Described wireless communication module A and wireless communication module B all adopts 3G communication module.
Heretofore described power module is made up of solar panel and charge-discharge battery group；Described power parameter testing circuit is for the detection charging voltage of solar panel, charging current, the floating voltage of charge-discharge battery group, load voltage, load current and electricity in real time.
Heretofore described sensor includes the IP Camera for gathering the current image data information of transmission line of electricity and for gathering the Temperature Humidity Sensor of transmission line of electricity current weather data message, angular transducer, wind speed wind direction sensor, baroceptor, IP Camera connects signal processing circuit and sensor diagnostics circuit respectively by network interface circuit, and Temperature Humidity Sensor, angular transducer, wind speed wind direction sensor and baroceptor connect signal processing circuit and sensor diagnostics circuit respectively by bus interface circuit.
The invention have the advantages that
(1) present configuration is simple, easy to operate, by adopting technology of Internet of things, while the operating condition of transmission line of electricity is carried out remotely monitoring, achieve the real-time monitoring to monitoring equipment operation condition, and carry out remote fault diagnosis, analyzing failure cause, upload failure code to server, consequently facilitating monitoring personnel find the trouble point of monitoring equipment, in order to safeguard in time；
(2) present invention achieves the fault that monitoring equipment is occurred and carry out intelligently diagnostic analysis, do not need human intervention, and when carrying out accident analysis, can the criterion in real time modifying fault detection program and corresponding failure code as required, control flexible and changeable；
(3) failure code that the present invention is uploaded by monitoring equipment, the maintenance for monitoring equipment provides reference, improves the credibility of Monitoring Data, also the selection of each sensor model number of far-end is provided reference；
(4) present invention greatly reduces difficulty and the workload of transmission line of electricity maintenance work, and improves the efficiency of maintenance work.
Accompanying drawing explanation
Fig. 1 is the control structure block diagram of the present invention；
Fig. 2 is the novel control structure block diagram in the specific implementation of this enforcement.
In figure: 1 monitoring equipment, 2 server end controllers, 3 power modules, 4 power parameter testing circuits, 5 sensors, 6 signal processing circuits, 7 sensor diagnostics circuit, 8 microprocessors, 9 wireless communication module A, 10 wireless communication module B, 11 servers, 12 clock chips, 13 memory modules, 14 network interface circuits, 15 bus interface circuits, 16 solar panels, 17 charge-discharge battery groups.
Detailed description of the invention
Referring to Fig. 1, the present invention includes the monitoring equipment 1 for monitoring transmission line of electricity operating condition and server side controller 2；Described monitoring equipment 1 includes power module 3, power parameter testing circuit 4, sensor 5, signal processing circuit 6, sensor diagnostics circuit 7 and microprocessor 8 and wireless communication module A9；Described server end controller 2 includes wireless communication module B10 and server 11；
Described power module 3 provides working power for monitoring equipment 1；
Described power parameter testing circuit 4 is for detecting the voltage of power module 3, electric current and information about power and these information being transferred to microprocessor 8；
Described sensor 5 is provided with multiple, for gathering the current image data information of transmission line of electricity and meteorological data information；
Described signal processing circuit 6 for by each sensor acquisition to information carry out analog digital conversion after be transferred to microprocessor 8；
Described sensor diagnostics circuit 7 is for detecting the outside running voltage of each sensor, electric current and inner parameter, and these data are transferred to microprocessor 8；
Described microprocessor 8 by each sensor acquisition to the current information of transmission line of electricity pass sequentially through wireless communication module A9, wireless communication module B10 is transferred to server 11, and in microprocessor 8, it is provided with fault detection program and failure code, the data message that microprocessor 8 transmits according to power parameter testing circuit 4 and sensor diagnostics circuit 7, duty by fault detection program comprehensive descision power module 3 and each sensor 5, when power module 3 or sensor 5 break down, pass sequentially through wireless communication module A9, wireless communication module B10 uploads corresponding failure code to server 11；
Described server 11 is with consulting the current image data information of transmission line of electricity and meteorological data information and the failure code uploaded from microprocessor 8 for monitoring personnel, and the personnel that monitor revise fault detection program and failure code by server 11, remotely control monitoring equipment 1 simultaneously and carry out fault detect and upload failure code.
Referring to Fig. 2, the model that microprocessor 8 described in the present embodiment is selected is msp430F5438a, and microprocessor 8 is equipped with clock chip 12 and memory module 13, and wherein memory module 13 adopts SD card；Described power parameter testing circuit 4 and sensor diagnostics circuit 7 use TOREX product diagnosis voltage and electric current；Described signal processing circuit 6 is A/D change-over circuit；Described wireless communication module A9 and wireless communication module B10 all adopts the 3G communication module that Siemens Company produces；Described sensor 5 includes the IP Camera for gathering the current image data information of transmission line of electricity and for gathering the Temperature Humidity Sensor of transmission line of electricity current weather data message, angular transducer, wind speed wind direction sensor, baroceptor, IP Camera connects signal processing circuit 6 and sensor diagnostics circuit 7 respectively by network interface circuit 14, and Temperature Humidity Sensor, angular transducer, wind speed wind direction sensor and baroceptor connect signal processing circuit 6 and sensor diagnostics circuit 7 respectively by bus interface circuit 15.
Power module 3 described in the present embodiment is made up of solar panel 16 and charge-discharge battery group 17；Described power parameter testing circuit 4 is for the detection charging voltage of solar panel 16, charging current in real time, and detects the floating voltage of charge-discharge battery group 17, load voltage, load current and electricity.
The operation principle of the present invention is as follows:
Monitoring personnel issue control instruction by server 11, control instruction passes sequentially through wireless communication module B10 and wireless communication module A9 and transmits to microprocessor 8, program in microprocessor 8 brings into operation, or the timing automatic operation program of microprocessor 8, microprocessor 8 controls the current image data information of each sensor acquisition transmission line of electricity and meteorological data information, and obtain the current time of data acquisition, the data of collection are stored memory module 13 or passes sequentially through wireless communication module A9 and wireless communication module B10 and be sent to server 11, for monitoring, personnel consult.
The programmable power supply electrical parameter detection circuit 4 run in microprocessor 8 runs the detection voltage of power module 3, electric current and information about power, and control the sensor diagnostics circuit 7 operation detection outside running voltage of each sensor, electric current and inner parameter, and these information are analyzed, obtain the fault message of power module 3 and each sensor and the current time of data acquisition, these information storing memory module or passes sequentially through wireless communication module A9 and wireless communication module B10 and be sent to server 11, specific practice is as follows:
Power parameter testing circuit 4 detects the charging voltage of solar panel 16 and the supply voltage of charge-discharge battery group 17 under normal conditions.After monitoring personnel send power supply diagnostic command to microprocessor 8 by server 11, the data detection process such as the voltage of comprehensive detection power module, electric current, electricity are by power parameter testing circuit 4: the charging voltage of solar panel 16, charging current detection；The detection of the floating voltage of charge-discharge battery group 17；The load voltage of charge-discharge battery group 17, load current detection；Comprehensive descision electricity.Microprocessor 8 is according to these data, by whether fault detection program comprehensive descision power module 3 is in normal duty, and by wireless communication module A9 and wireless communication module B10, diagnostic result and corresponding failure code is uploaded onto the server 11.
Sensor diagnostics circuit 7 checks running voltage and the operating current of each sensor under normal circumstances.After monitoring personnel send sensor diagnostic order to microprocessor 8 by server 11, each sensor is carried out diagnosis one by one by microprocessor 8: microprocessor 8 controls sensor diagnostics circuit 7 and sensor is individually powered one by one, sensor diagnostics circuit 7 individually detects the current reading of each sensor, detection sensor internal parameter, detection sensor external running voltage, electric current, so that whether this comprehensive descision sensor is in normal duty, and by wireless communication module A9 and wireless communication module B10, diagnostic result and corresponding failure code are uploaded onto the server 11.
Meanwhile, monitoring personnel can also pass through server 11 and revise fault detection program and failure code, remotely control monitoring equipment simultaneously and carry out fault detect and upload failure code.
Claims (4)
1. the power transmission line Link Monitor Equipment long-distance intelligent diagnostic equipment, is characterized in that: include the monitoring equipment for monitoring transmission line of electricity operating condition and server side controller；Described monitoring equipment includes power module, power parameter testing circuit, sensor, signal processing circuit, sensor diagnostics circuit and microprocessor and wireless communication module A；Described server end controller includes wireless communication module B and server；Described power module provides working power for monitoring equipment；Described power parameter testing circuit is for detecting the voltage of power module, electric current and information about power and these information being transferred to microprocessor；Described sensor is provided with multiple, for gathering the current image data information of transmission line of electricity and meteorological data information；Described signal processing circuit for by each sensor acquisition to information carry out analog digital conversion after be transferred to microprocessor；Described sensor diagnostics circuit is for detecting the outside running voltage of each sensor, electric current and inner parameter, and these data are transferred to microprocessor；Described microprocessor by each sensor acquisition to the current information of transmission line of electricity pass sequentially through wireless communication module A, wireless communication module B is transferred to server, and it is provided with fault detection program and failure code in the microprocessor, the data message that microprocessor transmits according to power parameter testing circuit and sensor diagnostics circuit, duty by fault detection program comprehensive descision power module He each sensor, when power module or sensor failure, by wireless communication module A, wireless communication module B uploads corresponding failure code to server；Described server is with consulting the current image data information of transmission line of electricity and meteorological data information and the failure code uploaded from microprocessor for monitoring personnel, and the personnel that monitor are by server amendment fault detection program and failure code, remotely control monitoring equipment simultaneously and carry out fault detect and upload failure code.
2. the power transmission line Link Monitor Equipment long-distance intelligent diagnostic equipment according to claim 1, is characterized in that: described microprocessor is equipped with clock chip and memory module；Described signal processing circuit is A/D change-over circuit；Described wireless communication module A and wireless communication module B all adopts 3G communication module.
3. the power transmission line Link Monitor Equipment long-distance intelligent diagnostic equipment according to claim 1, is characterized in that: described power module is made up of solar panel and charge-discharge battery group；Described power parameter testing circuit is for the detection charging voltage of solar panel, charging current, the floating voltage of charge-discharge battery group, load voltage, load current and electricity in real time.
4. the power transmission line Link Monitor Equipment long-distance intelligent diagnostic equipment according to claim 1 and 2, it is characterized in that: described sensor includes the IP Camera for gathering the current image data information of transmission line of electricity and for gathering the Temperature Humidity Sensor of transmission line of electricity current weather data message, angular transducer, wind speed wind direction sensor, baroceptor, IP Camera connects signal processing circuit and sensor diagnostics circuit respectively by network interface circuit, Temperature Humidity Sensor, angular transducer, wind speed wind direction sensor and baroceptor connect signal processing circuit and sensor diagnostics circuit respectively by bus interface circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610304736.7A CN105785203B (en) | 2016-05-10 | 2016-05-10 | Transmission line of electricity monitoring device long-distance intelligent diagnostic device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610304736.7A CN105785203B (en) | 2016-05-10 | 2016-05-10 | Transmission line of electricity monitoring device long-distance intelligent diagnostic device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105785203A true CN105785203A (en) | 2016-07-20 |
| CN105785203B CN105785203B (en) | 2018-05-04 |
Family
ID=56401730
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610304736.7A Active CN105785203B (en) | 2016-05-10 | 2016-05-10 | Transmission line of electricity monitoring device long-distance intelligent diagnostic device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105785203B (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107219805A (en) * | 2017-07-28 | 2017-09-29 | 释普信息科技（上海）有限公司 | A kind of device diagnosis device and method, circuit board based on wireless telecommunications |
| CN107357225A (en) * | 2017-09-18 | 2017-11-17 | 内蒙古自治区大气探测技术保障中心 | Remote controllers and automatic weather station |
| CN107643712A (en) * | 2017-09-25 | 2018-01-30 | 中国航空工业集团公司西安飞机设计研究所 | A kind of Multi-sensor intelligent monitoring device |
| CN110082637A (en) * | 2019-05-10 | 2019-08-02 | 贵州电网有限责任公司 | A kind of power distribution network operation data monitoring system and method based on synchronous vector |
| CN112104082A (en) * | 2020-09-16 | 2020-12-18 | 西安交通大学 | System and method for monitoring live state of power distribution network line based on Internet of things technology |
| CN112379211A (en) * | 2020-09-24 | 2021-02-19 | 国网吉林省电力有限公司电力科学研究院 | Detection method of power transmission line fault area positioning device |
| CN112833953A (en) * | 2021-01-07 | 2021-05-25 | 衢州光明电力投资集团有限公司赋腾科技分公司 | Intelligent power grid online monitoring method based on intelligent power transmission and distribution equipment |
| CN113009869A (en) * | 2021-02-09 | 2021-06-22 | 杭州极能科技有限公司 | Intelligent power maintenance management system |
| CN113466619A (en) * | 2021-06-25 | 2021-10-01 | 沈阳达能电安全高新产业技术研究院有限公司 | Remote intelligent diagnosis device for power transmission line monitoring equipment |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101566657A (en) * | 2008-04-22 | 2009-10-28 | 深圳浩宁达仪表股份有限公司 | Method and system for online metering and real-time monitoring of electric transmission line |
| CN102565567A (en) * | 2011-10-28 | 2012-07-11 | 江苏省电力公司连云港供电公司 | Dynamic increasing capacity on-line monitoring device for power transmission line |
| US20140257624A1 (en) * | 2013-03-08 | 2014-09-11 | The Boeing Company | Electrical power health monitoring system |
| CN104716741A (en) * | 2015-02-13 | 2015-06-17 | 华东理工大学 | Transformer substation remote monitoring system and method |
| CN205594104U (en) * | 2016-05-10 | 2016-09-21 | 国家电网公司 | Transmission line monitoring facilities remote intelligent diagnostic device |
-
2016
- 2016-05-10 CN CN201610304736.7A patent/CN105785203B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101566657A (en) * | 2008-04-22 | 2009-10-28 | 深圳浩宁达仪表股份有限公司 | Method and system for online metering and real-time monitoring of electric transmission line |
| CN102565567A (en) * | 2011-10-28 | 2012-07-11 | 江苏省电力公司连云港供电公司 | Dynamic increasing capacity on-line monitoring device for power transmission line |
| US20140257624A1 (en) * | 2013-03-08 | 2014-09-11 | The Boeing Company | Electrical power health monitoring system |
| CN104716741A (en) * | 2015-02-13 | 2015-06-17 | 华东理工大学 | Transformer substation remote monitoring system and method |
| CN205594104U (en) * | 2016-05-10 | 2016-09-21 | 国家电网公司 | Transmission line monitoring facilities remote intelligent diagnostic device |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107219805A (en) * | 2017-07-28 | 2017-09-29 | 释普信息科技（上海）有限公司 | A kind of device diagnosis device and method, circuit board based on wireless telecommunications |
| CN107357225A (en) * | 2017-09-18 | 2017-11-17 | 内蒙古自治区大气探测技术保障中心 | Remote controllers and automatic weather station |
| CN107643712A (en) * | 2017-09-25 | 2018-01-30 | 中国航空工业集团公司西安飞机设计研究所 | A kind of Multi-sensor intelligent monitoring device |
| CN110082637A (en) * | 2019-05-10 | 2019-08-02 | 贵州电网有限责任公司 | A kind of power distribution network operation data monitoring system and method based on synchronous vector |
| CN112104082A (en) * | 2020-09-16 | 2020-12-18 | 西安交通大学 | System and method for monitoring live state of power distribution network line based on Internet of things technology |
| CN112379211A (en) * | 2020-09-24 | 2021-02-19 | 国网吉林省电力有限公司电力科学研究院 | Detection method of power transmission line fault area positioning device |
| CN112833953A (en) * | 2021-01-07 | 2021-05-25 | 衢州光明电力投资集团有限公司赋腾科技分公司 | Intelligent power grid online monitoring method based on intelligent power transmission and distribution equipment |
| CN113009869A (en) * | 2021-02-09 | 2021-06-22 | 杭州极能科技有限公司 | Intelligent power maintenance management system |
| CN113466619A (en) * | 2021-06-25 | 2021-10-01 | 沈阳达能电安全高新产业技术研究院有限公司 | Remote intelligent diagnosis device for power transmission line monitoring equipment |
| CN113466619B (en) * | 2021-06-25 | 2024-01-23 | 沈阳达能电安全高新产业技术研究院有限公司 | Remote intelligent diagnosis device for power transmission line monitoring equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105785203B (en) | 2018-05-04 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105785203A (en) | Remote intelligent diagnostic device for power transmission line monitoring equipment | |
| CN102566503B (en) | Remote monitoring and fault diagnosis system for numerical control machine tool | |
| CN205594104U (en) | Transmission line monitoring facilities remote intelligent diagnostic device | |
| CN101770221B (en) | Two-arm inspection robot control system based on field bus | |
| CN103683499B (en) | The infrared automatic temperature measurement early warning system of a kind of converting station electric power apparatus remote | |
| CN109142904B (en) | Image recognition-based fault monitoring method and device for direct-current transmission converter valve | |
| CN103245912A (en) | Analytical and diagnostic method for running states of wind turbines | |
| CN210377085U (en) | Underground water pump house inspection system for coal mine | |
| CN102760501A (en) | Method and system for troubleshooting of equipment in nuclear power plant | |
| CN203896305U (en) | Device for monitoring operation state of solar power generating assembly and solar power generating system | |
| CN105551226A (en) | Low-power consumption intelligent data acquisition box | |
| CN204575733U (en) | A kind of high-tension cable sheath grounding current on-line monitoring system | |
| CN104898547B (en) | A kind of wind electricity change paddle PLC detection methods and detection means | |
| CN204789798U (en) | Distribution lines operation condition monitoring device and monitoring system | |
| CN111024261A (en) | Method and system for monitoring cable joint by NB-IOT technology | |
| CN105527914A (en) | Double-CPU reliably-designed base station power environment monitoring device and method | |
| CN108400653A (en) | A kind of intelligent substation inspection system | |
| CN202696288U (en) | Rapid on site self-healing apparatus and system for power distribution network fault | |
| CN207573313U (en) | A kind of photovoltaic string formation fault diagnosis and monitoring device based on resistance calculations | |
| CN203870440U (en) | Network centralized control platform of transformer station main transformation oil chromatogram on-line monitoring devices | |
| CN110601656A (en) | Photovoltaic power generation fault monitoring system and method thereof | |
| CN206725730U (en) | A kind of AGV power supplies on-line monitoring system | |
| CN213515757U (en) | Switch conversion equipment on-line monitoring system | |
| CN211014570U (en) | Locomotive storage battery on-line monitoring system | |
| CN205247611U (en) | Low -power consumption intelligent data acquisition case |
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 |