CN103825944A - Transformer substation safety management system based on Internet of things - Google Patents
Transformer substation safety management system based on Internet of things Download PDFInfo
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- Y—GENERAL 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02B90/20—Smart grids as enabling technology in buildings sector
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- Y—GENERAL 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
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- Y—GENERAL 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
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S40/00—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them
- Y04S40/12—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment
- Y04S40/121—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment using the power network as support for the transmission
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- Y—GENERAL 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
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S40/00—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them
- Y04S40/12—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment
- Y04S40/126—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment using wireless data transmission
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- Y—GENERAL 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
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S40/00—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them
- Y04S40/12—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment
- Y04S40/128—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment involving the use of Internet protocol
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Abstract
The invention discloses a transformer substation safety management system based on the Internet of things. The system comprises a server, an exchanger, an internal exchanger, a front-end processor, a WSN node and a mobile terminal, wherein the server is connected and communicated with the exchanger through an internal local area network, the exchanger is connected and communicated with the internal exchanger through a power line carrier network, the internal exchanger is communicated with the front-end processor through a medium-voltage bandwidth power line carrier overhead line and an optical fiber in a mixed connected mode, and the front-end processor is communicated with the mobile terminal through the WSN node of a self-organization network of a Zigbee wireless sensor. Safety operation management, equipment monitoring and environment perception of a transformer substation are achieved, and the communication bottleneck problem of the last one kilometer of a distribution network is effectively solved through hybrid networking of low-voltage and medium-voltage communication access networks.
Description
Technical field
The present invention relates to substation safety management system, relate in particular to a kind of substation safety management system based on Internet of Things.
Background technology
Transformer station belongs to high-risk working region, if manage not in placely, does not slightly note just may having an accident.Under the current call that people-oriented, the work in every of transformer station has all been placed on personal safety first.But, except the restriction of the rules and regulations such as operational procedure, security treaty, also there is no the safety guarantee means of a set of practicable initiative alarming.Thereby, if the affected error of operating personnel, error in judgement, or lazyness, randomness, tour be strayed into interval etc., all may directly or indirectly cause the generation of accident, when personal safety is on the hazard, economic interests also incurred loss.
Intelligent substation is important foundation and the support of strong intelligent grid.There is informationization, automation, interactive feature, formed by advanced, reliable, energy-saving and environmental protection, integrated device combination.It is take express network communications platform as Information Transmission System; automatically complete the basic functions such as information gathering, measurement, control, protection, metering and detection, and can support as required the senior application functions such as the real-time control automatically of electrical network, intelligence adjusting, on-line analysis decision-making, collaborative interaction.
Domestic most transformer stations all do not have monitoring and the warning system for staff now, although camera has been equipped by some transformer stations, play certain supervisory role,, there is " dead angle " in some monitoring in camera; There is time delay in the transmission of video information, can not realize real-time monitoring; Each camera just monitoring is formulated the staff in regional extent, can not form a continuous monitoring mode; Its wiring and installation procedure complexity simultaneously, cost is higher, is only suitable at Small Substation.There is the inaccurate problem in substation inspection, maintenance, visit personnel border early warning and location in some transformer station personnel job management systems.Also be independent, the small automatic device that do not possess Intelligent dialogue function separately for equipment Inspection and environment sensing, form multiple information islands, need more manually to pay close attention to, understand and process the information of these equipment, do not reach the intelligent operation management expectancy of intelligent substation.
Technology of Internet of things has been realized the integration of human society and physical system, by automatically, in real time corresponding event is identified, locates, follows the trail of, monitors and triggered to equipment, has realized real-time management and control to equipment.Utilize technology of Internet of things, by perception to external world, build safety operation management system in transformer substation, reach " Intelligent Measurement, intelligent decision, intelligent management, intelligent verification " requirement, realize intelligent substation management of the safe operation.
Summary of the invention
Because the above-mentioned defect of prior art, technical problem to be solved by this invention is to provide a kind of substation safety management system based on Internet of Things, structure integrates the distribution end heterogeneous network communications platform of Zigbee self-organizing network, power line carrier, optical fiber communication etc., realize substation safety job management, monitoring of equipment and environment sensing.
For achieving the above object, the invention provides a kind of substation safety management system based on Internet of Things, comprise server, switch, inner exchanging machine, front end processor, WSN node and mobile terminal, described server is connected communication with described switch by internal lan, described switch is connected and communicates by letter with fiber mix transmission network by middle pressure broadband power line carrier overhead wire with described inner exchanging machine, described inner exchanging machine is connected communication with described front end processor by power-line carrier network, described front end processor is by described WSN node and the described communication of mobile terminal of Zigbee wireless sensor self-organizing network.
In preferred embodiments of the present invention, the described substation safety management system based on Internet of Things also comprises monitor client, and described monitor client is connected message center with described server, and described monitor client is Surveillance center.
In another preferred embodiments of the present invention, described pressure bandwidth carrier overhead wire and fiber mix transmission network, be the application of 10kV overhead wire and cable mixed networking mode, its actual measurement upper and lower behavior 90M of peak bandwidth and 83M.
In preferred embodiments of the present invention, described switch is Cisco 3750.
In another preferred embodiments of the present invention, described inner exchanging machine is rich people's change low-voltage distribution chamber interior switch.
In preferred embodiments of the present invention, in described substation safety operating system, also comprise safety work early-warning and positioning system, described safety work early-warning and positioning system comprises and is installed on on-the-spot anchor node 8, WSN node 5, mobile terminal 6, monitoring front end processor 4 and gateway node 9, the described monitoring front end processor 4 of described safety work early-warning and positioning system is accessed terminal and 10 is communicated by letter by TCP/IP and low-voltage distribution chamber power line carrier, described low-voltage distribution chamber power line carrier accesses terminal to be connected on internal lan and communicates with described Surveillance center 7, described anchor node 8 is similar to the base station of mobile phone, be deployed in target area and near interested monitored area thereof, described WSN node 5 energy automatic network-buildings, form the network system of self-organizing, receive the signal in its coverage.
Practitioner's safety work early warning localization method in substation safety management system based on Internet of Things, concrete steps are as follows:
Step 1: by the terminal that localization method program is installed along the monitored area of patrolling and examining route and be deployed in target area and near dangerous spot thereof;
Step 2: described mobile terminal 6 timing of wearing with oneself outwards broadcast packet containing himself ID " heartbeat message ";
Step 3: described anchor node 8 is received after described heartbeat message, the self-organizing network forming by described WSN node 5;
Step 4: described self-organizing network automatically uploads to gateway node 9 by data and read in by monitoring front end processor 4;
Step 5: described front end processor 4 receives that by localization method the position calculation of the described anchor node 8 of heartbeat signal goes out the current location of staff or outer visitor, the diverse geographic location distributing in conjunction with interval in transformer station (or working region), whether definite staff region of living in of holding described mobile terminal 6 is illegal region, and automatically uploads to described control monitor client;
Step 6: if illegal region, described control monitor client is automatic alarm, reminds patrol officer to take care or other rules, reminds external personnel to get back to legal region, also can notify relevant departments to carry out emergency processing simultaneously.
In preferred embodiments of the present invention, the localization method in described step 5 is a kind of adaptive location algorithm based on neural net, and concrete steps are as follows:
(1), according to on-the-spot actual environment, build RSSI-range prediction model in conjunction with neural net;
(2) mobile terminal 6 fixed time broadcasts send heartbeat message;
(3) anchor node 8 of receiving heartbeat message is according to RSSI value auto-sequencing, and makes filtering, normalized, obtains Rssin[n];
(4) according to certain way from Rssin[n] the input of the neural net RSSI-range prediction model that preferably maximum 4 anchor nodes obtain as step 1, the output of this model is the distance B is[n of monitoring objective and each anchor node 8];
(5) according to the Dis[n that obtains] value is by the current position coordinates of barycenter location algorithm calculating target; Simultaneously using the Dis[n obtaining] value inputs to neural network model in step 1 so that model is optimized as new sample;
(6) position coordinates that adopts direction of motion angle forecast model to calculate barycenter location algorithm carries out adaptive amplitude-limiting, thereby obtains level and smooth movement locus.
In substation safety management system based on Internet of Things, press a broadband power line carrier implementation method, concrete steps are as follows:
Step 1: determine BPLC communication host node, transformer station, the switching station etc. that selection has a power optical fiber as in press the host node of bandwidth carrier communication network, in installation, press BPLC headend, with power optical fiber network slitless connection, utilize 10kV power distribution network that middle pressure bandwidth carrier communication partial node is set;
Step 2: from PLC host node, according to 10kV Distribution system design branch communication line, using transformer, ring main unit or feeder pillar etc. on medium-voltage line as relaying/terminal node, medium voltage power line broadband carrier-current relaying/terminal equipment is installed and is connected with distribution automation equipment, realize data upload and forwarding;
Step 3: disconnecting link or switch place arrangement partial node also adopt two ends coupling, by pressing broadband carrier signal transmission not affected by disconnecting link or switch in ensureing, can BPLC equipment be installed and inductive coupler is installed on two-termial line at disconnecting link or switch place, play the function of BPLC signal bridging;
Step 4: data upload and instruction issues, the distribution automation related data information that middle pressure is along the line, by power line broadband branched network and fiber shaft, pass to described monitor client on the net, described monitor client is implemented instruction and is issued, two-way interaction, realizes remote signalling, remote measurement, remote regulating, remote control and remote viewing.
The present invention is based on technology of Internet of things, cooperative information treatment technology has successfully built the distribution end heterogeneous network communications platform that integrates Zigbee self-organizing network, power line carrier, optical fiber communication etc., realize substation safety job management, monitoring of equipment and environment sensing, mesolow communication access net mixed networking efficiently solves the communication performance bottleneck problem of last kilometer of distribution.
Below with reference to accompanying drawing, the technique effect of design of the present invention, concrete structure and generation is described further, to understand fully object of the present invention, feature and effect.
Accompanying drawing explanation
Fig. 1 is the substation safety management system structure chart of a preferred embodiment of the present invention;
Fig. 2 is the safety work early-warning and positioning system Organization Chart of a preferred embodiment of the present invention;
Fig. 3 is the adaptive location algorithm flow chart based on neural net of a preferred embodiment of the present invention.
Embodiment
As shown in Figure 1, a kind of substation safety management system based on Internet of Things, comprise server 1, switch 2, inner exchanging machine 3, front end processor 4, WSN node 5 and mobile terminal 6, server 1 is connected communication with switch 2 by internal lan, switch 2 is connected communication with inner exchanging machine 3 by power-line carrier network and is connected and communicate by letter with fiber mix by middle pressure broadband power line carrier overhead wire, inner exchanging machine 3 is connected communication with front end processor 4 by power-line carrier network, front end processor 4 is communicated by letter with mobile terminal 6 by the WSN node 5 of Zigbee wireless sensor self-organizing network.This management system is the distribution end heterogeneous network communications platform that integrates zigbee self-organizing network, power line carrier, optical fiber communication etc., has realized substation safety job management, monitoring of equipment and environment sensing.
Switch 2 is Cisco 3750, and inner exchanging machine 3 is rich people's change low-voltage distribution chamber interior switch.
In substation safety operating system, also comprise safety work early-warning and positioning system, solve substation inspection, maintenance, visit personnel border early warning and orientation problem, this system architecture as shown in Figure 2, comprise and be installed on on-the-spot anchor node 8, WSN node 5, mobile terminal 6, monitoring front end processor 4 and gateway node 9, the monitoring front end processor 4 of navigation system is accessed terminal and 10 is communicated by letter by TCP/IP and low-voltage distribution chamber power line carrier, and low-voltage distribution chamber power line carrier is connected on internal lan and communicates with Surveillance center 7.Anchor node 8 is similar to the base station of mobile phone, is deployed in target area and near interested monitored area thereof, WSN node 5 energy automatic network-buildings, and the network system of formation self-organizing, receives the signal in its coverage.The mobile terminal 6 of wearing with oneself can timing outwards broadcast packet containing himself ID " heartbeat message ", when the anchor node 8 of mobile terminal 6 peripheries is received after this heartbeat message, the self-organizing network forming by WSN node 5 automatically uploads to gateway node 9 by data and is read in by monitoring front end processor 4.Front end processor 4 receives that by localization method or tracking the position of the anchor node 8 of heartbeat signal can calculate the current location of staff or outer visitor, the diverse geographic location distributing in conjunction with interval in transformer station (or working region), whether definite staff region of living in of holding this mobile terminal 6 is illegal region, if, system is by automatic alarm, remind patrol officer take care or other rules, remind external personnel to get back to legal region, also can notify relevant departments to carry out emergency processing simultaneously.This system has effectively been improved target location accuracy, has greatly promoted track following smoothness, has improved the practitioner's of transformer station fail safe.
The localization method that front end processor 4 uses is a kind of adaptive location method based on neural net, and as shown in Figure 3, concrete steps are flow process:
(1), according to on-the-spot actual environment, build RSSI-range prediction model in conjunction with neural net;
(2) mobile terminal 6 fixed time broadcasts send heartbeat message;
(3) anchor node 8 of receiving heartbeat message is according to RSSI value auto-sequencing, and makes filtering, normalized, obtains Rssin[n];
(4) according to certain way from Rssin[n] the input of the neural net RSSI-range prediction model that preferably maximum 4 anchor nodes obtain as step 1, the output of this model is the distance B is[n of monitoring objective and each anchor node 8];
(5) according to the Dis[n that obtains] value is by the current position coordinates of barycenter location algorithm calculating target; Simultaneously using the Dis[n obtaining] value inputs to neural network model in step 1 so that model is optimized as new sample;
(6) position coordinates that adopts direction of motion angle forecast model to calculate barycenter location algorithm carries out adaptive amplitude-limiting, thereby obtains level and smooth movement locus.
The wireless senser self-organizing network that the present embodiment adopts Zigbee node to form at data acquisition end carries out the transmitting-receiving of data, and this partial data transmission completes between front end processor 4 and WSN node 5; Between front end processor 4 and data biography server 1, transmission presses the communication mode of bandwidth carrier and Ethernet to transmit in adopting power line, efficiently solves the communication performance bottleneck problem of last kilometer of distribution.
Middle pressure broadband power line carrier technology adopts overhead wire and the cable mixed transport net mode based on OFDM, for the application of 10kV overhead wire and cable mixed networking mode, its actual measurement peak bandwidth up-downgoing can reach 90M and 83M, realize technical guarantee is provided for joining from five distant functions, solve transformer station's real-time information interaction and Internet Transmission.Specific embodiments is as follows:
(1) determine BPLC communication host node, transformer station, the switching station etc. that selection has a power optical fiber as in press the host node of bandwidth carrier communication network, in installation, press BPLC headend, with power optical fiber network slitless connection, utilize 10kV power distribution network that middle pressure bandwidth carrier communication partial node is set;
(2) from PLC host node, according to 10kV Distribution system design branch communication line, using transformer, ring main unit or feeder pillar etc. on medium-voltage line as relaying/terminal node, medium voltage power line broadband carrier-current relaying/terminal equipment is installed and is connected, realize data upload and forwarding with distribution automation equipment;
(3) disconnecting link or switch place arrangement partial node adopt two ends couplings, by pressing broadband carrier signal transmission not affected by disconnecting link or switch in ensureing, can BPLC equipment be installed and inductive coupler is installed on two-termial line at disconnecting link or switch place, play the function of BPLC signal bridging;
(4) data upload and instruction issues, the distribution automation related data information that middle pressure is along the line, by power line broadband branched network and fiber shaft, pass to monitor client on the net, monitor client is implemented instruction and is issued, two-way interaction, realizes remote signalling, remote measurement, remote regulating, remote control and remote viewing.
More than describe preferred embodiment of the present invention in detail.The ordinary skill that should be appreciated that this area just can design according to the present invention be made many modifications and variations without creative work.Therefore, all technical staff in the art, all should be in by the determined protection range of claims under this invention's idea on the basis of existing technology by the available technical scheme of logical analysis, reasoning, or a limited experiment.
Claims (9)
1. the substation safety management system based on Internet of Things, it is characterized in that, comprise server, switch, inner exchanging machine, front end processor, WSN node and mobile terminal, described server is connected communication with described switch by internal lan, described switch is connected and communicates by letter with fiber mix transmission network by middle pressure broadband power line carrier overhead wire with described inner exchanging machine, described inner exchanging machine is connected communication with described front end processor by power-line carrier network, described front end processor is by described WSN node and the described communication of mobile terminal of Zigbee wireless sensor self-organizing network.
2. the substation safety management system based on Internet of Things as claimed in claim 1, is characterized in that, also comprises monitor client, and described monitor client is connected message center with described server, and described monitor client is Surveillance center.
3. the substation safety management system based on Internet of Things as claimed in claim 2, it is characterized in that, safety work early-warning and positioning system, described safety work early-warning and positioning system comprises and is installed on on-the-spot anchor node, WSN node, mobile terminal, monitoring front end processor and gateway node, the described monitoring front end processor of described safety work early-warning and positioning system is accessed terminal and communicates by letter with low-voltage distribution chamber power line carrier by TCP/IP, described low-voltage distribution chamber power line carrier accesses terminal to be connected on internal lan and communicates with described Surveillance center, described anchor node is similar to the base station of mobile phone, be deployed in target area and near interested monitored area thereof, described WSN node energy automatic network-building, form the network system of self-organizing, receive the signal in its coverage.
4. the substation safety management system based on Internet of Things as claimed in claim 1, it is characterized in that, described pressure bandwidth carrier overhead wire and fiber mix transmission network, be the application of 10kV overhead wire and cable mixed networking mode, its actual measurement upper and lower behavior 90M of peak bandwidth and 83M.
5. the substation safety management system based on Internet of Things as claimed in claim 1, is characterized in that, described switch is Cisco 3750.
6. the substation safety management system based on Internet of Things as claimed in claim 1, is characterized in that, described inner exchanging machine is rich people's change low-voltage distribution chamber interior switch.
7. the early warning of practitioner border and the localization method in the substation safety management system based on Internet of Things as claimed in claim 3, it is characterized in that, comprise the steps: step 1: by the terminal that localization method program is installed along the monitored area of patrolling and examining route and be deployed in target area and near dangerous spot thereof;
Step 2: described mobile terminal 6 timing of wearing with oneself outwards broadcast packet containing himself ID " heartbeat message ";
Step 3: described anchor node 8 is received after described heartbeat message, the self-organizing network forming by described WSN node 5;
Step 4: described self-organizing network automatically uploads to gateway node 9 by data and read in by monitoring front end processor 4;
Step 5: described front end processor 4 receives that by localization method the position calculation of the described anchor node 8 of heartbeat signal goes out the current location of staff or outer visitor, the diverse geographic location distributing in conjunction with interval in transformer station (or working region), whether definite staff region of living in of holding described mobile terminal 6 is illegal region, and automatically uploads to described control monitor client;
Step 6: if illegal region, described control monitor client is automatic alarm, reminds patrol officer to take care or other rules, reminds external personnel to get back to legal region, also can notify relevant departments to carry out emergency processing simultaneously.
8. the early warning of practitioner border and the localization method in the substation safety management system based on Internet of Things as claimed in claim 7, is characterized in that, in described step 5, localization method concrete steps are as follows:
(1), according to on-the-spot actual environment, build RSSI-range prediction model in conjunction with neural net;
(2) mobile terminal 6 fixed time broadcasts send heartbeat message;
(3) anchor node 8 of receiving heartbeat message is according to RSSI value auto-sequencing, and makes filtering, normalized, obtains Rssin[n];
(4) according to certain way from Rssin[n] the input of the neural net RSSI-range prediction model that preferably maximum 4 anchor nodes obtain as step 1, the output of this model is the distance B is[n of monitoring objective and each anchor node 8];
(5) according to the Dis[n that obtains] value is by the current position coordinates of barycenter location algorithm calculating target; Simultaneously using the Dis[n obtaining] value inputs to neural network model in step 1 so that model is optimized as new sample;
(6) position coordinates that adopts direction of motion angle forecast model to calculate barycenter location algorithm carries out adaptive amplitude-limiting, thereby obtains level and smooth movement locus.
9. in the substation safety management system based on Internet of Things as claimed in claim 2, press broadband power line carrier implementation method, it is characterized in that, comprise the steps: step 1: determine BPLC communication host node, transformer station, the switching station etc. that selection has a power optical fiber as in press the host node of bandwidth carrier communication network, in installation, press BPLC headend, with power optical fiber network slitless connection, utilize 10kV power distribution network that middle pressure bandwidth carrier communication partial node is set;
Step 2: from PLC host node, according to 10kV Distribution system design branch communication line, using transformer, ring main unit or feeder pillar etc. on medium-voltage line as relaying/terminal node, medium voltage power line broadband carrier-current relaying/terminal equipment is installed and is connected with distribution automation equipment, realize data upload and forwarding;
Step 3: disconnecting link or switch place arrangement partial node also adopt two ends coupling, by pressing broadband carrier signal transmission not affected by disconnecting link or switch in ensureing, can BPLC equipment be installed and inductive coupler is installed on two-termial line at disconnecting link or switch place, play the function of BPLC signal bridging;
Step 4: data upload and instruction issues, the distribution automation related data information that middle pressure is along the line, by power line broadband branched network and fiber shaft, pass to described monitor client on the net, described monitor client is implemented instruction and is issued, two-way interaction, realizes remote signalling, remote measurement, remote regulating, remote control and remote viewing.
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| CN110459074A (en) * | 2019-08-12 | 2019-11-15 | 东北大学 | Mine truck collision early warning system and method based on radar and WIFI |
| CN110492617A (en) * | 2019-09-05 | 2019-11-22 | 中电国科技术有限公司 | A kind of intelligent auxiliary monitoring management system, method and substation for substation |
| CN111555249A (en) * | 2020-05-25 | 2020-08-18 | 国网重庆市电力公司电力科学研究院 | Distributed power distribution network protection system |
| CN111832832A (en) * | 2020-07-21 | 2020-10-27 | 重庆现代建筑产业发展研究院 | Community self-inspection system based on Internet of things |
| CN111832832B (en) * | 2020-07-21 | 2023-12-29 | 重庆现代建筑产业发展研究院 | District self-inspection system based on thing networking |
| CN114123510A (en) * | 2021-11-26 | 2022-03-01 | 广州市万源能源科技有限公司 | Transformer monitoring method and system based on real-time data analysis |
| CN114123510B (en) * | 2021-11-26 | 2022-06-10 | 广州市万源能源科技有限公司 | Transformer monitoring method and system based on real-time data analysis |
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