CN205880114U - Join in marriage power system fault indicating system based on loRa communication technology - Google Patents
Join in marriage power system fault indicating system based on loRa communication technology Download PDFInfo
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- CN205880114U CN205880114U CN201620753600.XU CN201620753600U CN205880114U CN 205880114 U CN205880114 U CN 205880114U CN 201620753600 U CN201620753600 U CN 201620753600U CN 205880114 U CN205880114 U CN 205880114U
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Abstract
The utility model discloses a join in marriage power system fault indicating system based on loRa communication technology, including master station, collecing unit and a plurality of acquisition unit, a plurality of acquisition unit intervals are installed the voltage current data who is used for on gathering a little and are gathered on the collection point of joining in marriage electric network line, collect through loRa wireless connection between unit and a plurality of acquisition unit, be used for receiving the voltage current data on a plurality of acquisition unit, collect the unit with through GPRS wireless connection between the master station, be used for sending the voltage current data of difference collection point to master station and receiving master station's command signal. The utility model discloses a join in marriage power system fault indicating system based on loRa communication technology has advantages such as simple structure, fault indication precision height, reliable operation.
Description
Technical field
This utility model relates generally to distribution network technology field, refers in particular to a kind of distribution network failure based on LoRa communication technology
Instruction system.
Background technology
In distribution network automated construction, overhead type fault detector because of its need not transform primary equipment, can be charged
The advantages such as installation, increasingly obtain the favor of grid company, especially at suburb and the Rural Power Distribution Network of load relative distribution.
As it is shown in figure 1, overhead type fault detector is mainly used in line fault monitoring and the instruction of field of distribution network；General
The functional module of fault detector includes two parts: i.e. three collecting units and one collect unit, wherein three collecting units
Being mainly used as A, B, C three-phase load electric current and the acquisition terminal of phase electric field, data and the remote signalling amount of collection are passed through by collecting unit
Radio frequency communication mode is followed Zigbee network agreement and is sent to collect unit, collects unit again by GPRS and backstage, a distant place
Carry out data interaction, thus realize the function that charge circuit remotely monitors；On the one hand, under normal conditions due to by Zigbee certainly
Networking is made at the environment of transmission range and monitoring circuit thereof, and the actual range collecting unit and collecting unit installation not should be greater than
100 meters, otherwise, the stability of data transmission can not be protected；On the other hand, the main powering mode of collecting unit is typically logical
Overload current acquisition coil automatic electricity getting, is not suitable for supporting the electronic device of high power consumption, is therefore using Zigbee MANET
During transmission mode, the problem of collecting unit power consumption to be particularly contemplated.
Under current Zigbee networking model, fault detector one collects unit and three collecting units carry out group
Net, at the scene in actual environment, the transmission range collecting unit and collecting unit is less than 100 meters, causes to upload collection single
Unit measurement data and signal data be necessary for each collection point configuration one band GPRS communication module collect unit (at distribution
At lines branch, if collection point apart from close can two groups of public one of collecting units collect unit).As it is shown in figure 1, fault
Instruction circuit is mounted with five fault detectors, and each fault detector three acquisition terminals of configuration and one collect unit, respectively
The individual unit that collects collects three collecting unit data then by GPRS and monitoring Background communication by Zigbee networking technology.From
Said structure is it can clearly be seen that the collecting unit of existing two distant overhead type fault detectors and collect networking communication between unit
Communication, it is impossible to well take into account low energy consumption and require with long-distance transmissions: collecting unit is directly articulated on overhead transmission line, and not having can
The power supply leaned on, and typically powered by CT power taking and set of cells thereof and mode, low-power consumption is required higher；Except this it
Outward, based on existing communication pattern and compound mode, during reconnaissance installed by fault detector, there is cost and instruction
Contradiction between precision: if improving pointing accuracy must increase packing density, and often organize collecting unit and be required for configuring one
Collect unit, wherein collect unit composition and include MCU panel, GPRS module, lithium battery, solar panel, IP grade very
High Stainless Steel Shell etc., accounts for 70%-80% in package unit cost；If it is considered that cost factor reduces packing density, then lead
Causing indicating positions when fault occurs not accurate enough, line walking staff need to take a significant amount of time and energy in transition scattered two
Patrol between mount point.
Utility model content
The technical problems to be solved in the utility model is that the technical problem existed for prior art, and this practicality is new
Type provides distribution network failure based on the LoRa communication technology instruction system that a kind of simple in construction, precision are high and low in energy consumption.
For solving above-mentioned technical problem, the technical scheme that the utility model proposes is:
A kind of distribution network failure based on LoRa communication technology instruction system, including master station, collects unit and multiple
Collecting unit, multiple collecting units interval is installed on the collection point of distribution network line for the voltage x current number on collection point
According to being acquired, described in collect and be connected by LoRa wireless telecommunications between unit with multiple collecting units, for receiving multiple adopting
Voltage x current data on collection unit；Described collecting is connected by GPRS wireless telecommunications, is used between unit with described master station
In the voltage x current data of different acquisition point being sent to master station and the command signal of reception master station.
Further improvement as technique scheme:
Described collecting unit includes the first control module, acquisition module, the first power module and a LoRa radio communication
Module, described first control module respectively with described acquisition module, the first power module and a LoRa wireless communication module phase
Even.
Described first power module includes main power supply and the back-up source that can mutually switch, and described main power supply includes using
In the super capacitor of electric power storage with for the current transformer loop of power taking from distribution network line, described back-up source includes lithium electricity
Pond.
Described collecting unit also includes fault processing module, described fault processing module and described first control module phase
Even, for sending failure alarm signal when distribution network failure.
The described unit that collects includes the second control module, second source module, the 2nd LoRa wireless communication module and GPRS
Wireless communication module, described second control module respectively with described second source module, the 2nd LoRa wireless communication module and
GPRS wireless communication module is connected.
Described second source module includes standby lead battery, for providing the solaode of power supply under light conditions
Plate and for unglazed according in the case of the super capacitor of power supply is provided.
Multiple collecting units and described collecting use time-sharing multiplex transmission data between unit.
Compared with prior art, the utility model has the advantage of:
Distribution network failure based on LoRa communication technology of the present utility model instruction system, collecting unit with collect unit it
Between use LoRa communication technology, make collecting unit and the communication distance collecting between unit significantly lengthen, single group collects unit energy
Enough support multiple collecting unit, certain procedures improves indicating fault precision；And disclosure satisfy that the low-power consumption of each unit
Demand.
Accompanying drawing explanation
Fig. 1 is the structural representation of fault-indicating system in prior art.
Fig. 2 is the structural representation of fault-indicating system of the present utility model.
Fig. 3 is the structural representation of the collecting unit in this utility model.
Fig. 4 is flow chart during low-power consumption mode in this utility model.
Fig. 5 is the structural representation collecting unit in this utility model.
Fig. 6 is the sequential schematic diagram of time-sharing multiplex in this utility model.
In figure, label represents: 1, collect unit；11, the second control module；12, GPRS wireless communication module；13, second
LoRa wireless communication module；14, second source module；2, collecting unit；21, the first control module；22, acquisition module；23,
One power module；24, fault processing module；25, a LoRa wireless communication module.
Detailed description of the invention
Below in conjunction with Figure of description and specific embodiment, this utility model is further described.
As shown in Figures 1 to 6, distribution network failure based on the LoRa communication technology instruction system of the present embodiment, including prison
Controlling main website, collect unit 1 and multiple collecting unit 2, multiple collecting units 2 interval is installed on the collection point of distribution network line use
In the voltage x current data on collection point are acquired, collect between unit 1 and multiple collecting unit 2 by LoRa channel radio
News connect, for receiving the voltage x current data on multiple collecting unit 2；Collect and pass through GPRS between unit 1 and master station
Wireless telecommunications connect, for the voltage x current data of different acquisition point being sent to master station and the life of reception master station
Make signal.Distribution network failure based on LoRa communication technology of the present utility model instruction system, collecting unit 2 with collect unit 1
Between use LoRa communication technology, make collecting unit 2 and the communication distance collected between unit 1 significantly lengthen, single group collects list
Unit 1 can support multiple collecting unit 2, improves indicating fault precision on certain procedures；And disclosure satisfy that each unit
Low-power consumption demand.
As in figure 2 it is shown, in the present embodiment, under normal operation circumstances, can meet the LoRa communication of required communication rate away from
From can reach 5km, spacious environment can reach 15km.Illustrating with relatively conservative 2km distance Zigbee communication, every 1km is as one
Individual collection mount point, the most each collect 5 groups of collecting unit 2(that unit 1 can gather in the range of diameter 4km and includes that list is collected in the center of circle
The collecting unit 2 of unit's 1 installation site).Relative to original pattern, if it is considered that cost dispersion is installed, then prior art exists
In the case of cost increases on a small quantity, pointing accuracy improves 5 times；It addition, in a traditional way, it is assumed that every 1 kilometer a fault is installed
Indicator, then under identical pointing accuracy, novel communication structure cost-saved more than 60%.If the environment at scene is good, suitable
Degree expanded scope, then effect is more prominent.
As it is shown on figure 3, in the present embodiment, collecting unit 2 includes the first control module 21, acquisition module the 22, first power supply
Module 23 and a LoRa wireless communication module 25, the first control module 21 respectively with acquisition module the 22, first power module 23
Being connected with a LoRa wireless communication module 25, wherein acquisition module 22 includes high-precision straight-through current transformer, is used for
Gather distribution network load electric current, and send to control module after logic processing module and signal adjusting module, wherein at logic
Reason module mainly carries out fault distinguishing by hardware circuit to detected circuit, if faulty signal, then directly by fault
Signal passes to the first control module 21；Signal adjusting module mainly includes A/D sampling and filter circuit, is adopted by filtering and simulation
After sample, eventually enter into the first control module 21 and measure load current amount.First power module 23 includes mutually switching
Main power supply and back-up source, main power supply includes for the super capacitor of electric power storage with for using the magnetic core of high magnetic permeability from joining
The current transformer loop of power taking in power network line, back-up source then includes lithium battery, when main power supply can not maintain global function
During work, back-up source automatically engages.When main power supply recovers, automatically switch back to main power supply and power.Additionally collecting unit 2
Also include fault processing module 24, mainly include motor board turning circuit and indicator light circuit, fault processing module 24 and
One control module 21 is connected, for sending failure alarm signal when distribution network failure；An other LoRa wireless communication module
25 1 aspects carry out intercommunication by SPI and the first control module 21, on the other hand by wireless LoRa communication mode and remittance
It is mutual that collection unit 1 carries out information.It addition, collecting unit also includes failure wave-recording module (not shown), failure wave-recording module
Be connected with the first control module 21, for distribution network load electric current is kept in, and when distribution network failure by fault before and after
The load current of preset time period sends to the first control module 21, analyzes operation of power networks state for higher level's electric power dispatching system and carries
It is provided with force data to support, fundamentally finds and release potential blind spot and crisis that grid operating monitoring exists, and be finally reached
Improve the purpose of the reliability of electric power system dispatching and operation level, process accident quick-reaction capability, safe power supply.
As shown in Figure 4, in the present embodiment, it is considered to power consumption requirements, program circuit is such as in terms of logic control for collecting unit 2
Under: once monitor charge circuit fault, it is contemplated that charge circuit will power-off, main power supply loop dead electricity, now gather list
Unit 2 power supply is mainly supported by back-up source, and system immediately turns on low-power consumption mode, to reduce kwh loss.
As it is shown in figure 5, in the present embodiment, collect unit 1 and include the second control module 11, second source module 14, second
LoRa wireless communication module 13 and GPRS wireless communication module 12, the second control module 11 respectively with second source module 14,
Two LoRa wireless communication modules 13 are connected with GPRS wireless communication module 12.Second source module 14 includes in light conditions
The solar panel of lower offer power supply, for unglazed according in the case of the super capacitor of power supply and standby lead battery are provided.
Collect unit 1 by LoRa communication mode collect collecting unit 2 in neighbouring predeterminable range scope (5Km) action message,
Load current, short action electric current, first half-wave peak current/data such as landing operation electric current, line-to-ground electric field, then pass through
The data collected are sent to master station by the communication modes such as GPRS.The inquiry of master station link, link can be received simultaneously
Reset, always call the orders such as data, remote regulating (communication and fault detector parameter), remote control (board turning of fault detector and involution) together.
Additionally also by GPS information to self poisoning, facilitate user to find equipment installation site, be master station and collecting unit
Communication bridge between 2, plays uploading and assigning effect of data.
In the present embodiment, collect the multi channel frequency hopping skill of unit 1 and the radio communication employing OpenWSN of collecting unit 2
Art so that each Frame uses different frequencies at sending time slots, it is possible to avoid external disturbance and multipath decline impact, significantly
Improve communication reliability.
In the present embodiment, multiple collecting units 2 and collect between unit 1 use time-sharing multiplex transmission data, to avoid leading to
Letter conflict, the most as shown in Figure 6, the communication module collecting unit 1 retains portion of time groove, is used for issuing communication and sending letter
Mark frame, the most then be divided into the time of equivalent in the case of retaining adequate allowance according to collecting unit 2 quantity connected
Groove, by pair time and safety time difference, it is ensured that each collecting unit 2 has independent communication and transmission window contention-free.
It addition, LoRa Full Name in English is (Long Range wireless network), it is a kind of real based on spread spectrum
Existing digital modulation techniques, uses Star Network framework, and compared with mesh network architecture, it is have lowest latency the simplest
Network structure.Spread spectrum chip based on LoRa, it is possible to achieve node networking direct with concentrator is connected, constitutes star;For
Node, can use gateway device to carry out relay networking connection at a distance.LoRa network can build wider wide of coverage
Territory net infrastructure, it is also possible to build LAN by simple gateway device, as long as embedding LoRa chip in internet of things equipment
Or module, can quickly realize networking and rapid configuration.Wide area network and two kinds of environment of LAN all can realize convenient networking,
Compare with the Zigbee protocol being good at MANET, no matter there is in terms of transmission range and power consumption obvious advantage.With Lora
Low-power consumption, long distance network technology for representing can break the bottleneck that interconnection technique apply in Internet of Things field, and final must
To extensively application.
Although this utility model is disclosed above with preferred embodiment, but it is not limited to this utility model.Any
Those of ordinary skill in the art, in the case of without departing from technical solutions of the utility model scope, may utilize the disclosure above
Technology contents technical solutions of the utility model are made many possible variations and modification, or be revised as the equivalence of equivalent variations
Embodiment.Therefore, every content without departing from technical solutions of the utility model, according to this utility model technical spirit to above real
Execute any simple modification, equivalent variations and modification that example is done, all should fall in the range of technical solutions of the utility model are protected.
Claims (7)
1. distribution network failure based on a LoRa communication technology instruction system, it is characterised in that include master station, collect list
Unit (1) and multiple collecting unit (2), multiple collecting units (2) interval is installed on the collection point of distribution network line for adopting
Collection point on voltage x current data be acquired, described in collect between unit (1) and multiple collecting unit (2) pass through LoRa wireless
Communication connects, is used for receiving the voltage x current data on multiple collecting unit (2)；The described unit (1) that collects is main with described monitoring
Connected by GPRS wireless telecommunications between standing, for the voltage x current data of different acquisition point being sent to master station and connecing
Receive the command signal of master station.
Distribution network failure based on LoRa communication technology the most according to claim 1 instruction system, it is characterised in that described
Collecting unit (2) includes the first control module (21), acquisition module (22), the first power module (23) and a LoRa channel radio
Letter module (25), described first control module (21) respectively with described acquisition module (22), the first power module (23) and first
LoRa wireless communication module (25) is connected.
Distribution network failure based on LoRa communication technology the most according to claim 2 instruction system, it is characterised in that described
First power module (23) includes main power supply and the back-up source that can mutually switch, and described main power supply includes for electric power storage
Super capacitor and for from distribution network line the current transformer loop of power taking, described back-up source includes lithium battery.
4. indicate system according to the distribution network failure based on LoRa communication technology described in Claims 2 or 3, it is characterised in that
Described collecting unit (2) also includes fault processing module (24), described fault processing module (24) and described first control module
(21) it is connected, for sending failure alarm signal when distribution network failure.
Distribution network failure based on LoRa communication technology the most as claimed in any of claims 1 to 3 instruction system, its
Be characterised by, described in collect unit (1) and include the second control module (11), second source module (14), the 2nd LoRa channel radio
Letter module (13) and GPRS wireless communication module (12), described second control module (11) respectively with described second source module
(14), the 2nd LoRa wireless communication module (13) is connected with GPRS wireless communication module (12).
Distribution network failure based on LoRa communication technology the most according to claim 5 instruction system, it is characterised in that described
Second source module (14) includes standby lead battery, for providing solar panel and the use of power supply under light conditions
In the super capacitor providing power supply in the case of unglazed photograph.
Distribution network failure based on LoRa communication technology the most as claimed in any of claims 1 to 3 instruction system, its
Being characterised by, multiple collecting units (2) and described collecting use time-sharing multiplex transmission data between unit (1).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620753600.XU CN205880114U (en) | 2016-07-18 | 2016-07-18 | Join in marriage power system fault indicating system based on loRa communication technology |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620753600.XU CN205880114U (en) | 2016-07-18 | 2016-07-18 | Join in marriage power system fault indicating system based on loRa communication technology |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107222931A (en) * | 2017-07-10 | 2017-09-29 | 深圳市信锐网科技术有限公司 | A kind of LoRa communication means and system |
| CN109061396A (en) * | 2018-10-10 | 2018-12-21 | 国网江苏省电力有限公司无锡供电分公司 | A kind of power distribution network traveling wave fault positioning method, apparatus and system |
| CN110351344A (en) * | 2019-06-25 | 2019-10-18 | 华南理工大学 | A kind of LoRa and 4G communication system of distributed power grid fault oscillograph |
| CN111769641A (en) * | 2020-06-29 | 2020-10-13 | 水木源华电气有限公司 | Intelligent terminal of power distribution internet of things |
| CN113866566A (en) * | 2021-10-26 | 2021-12-31 | 广东电网有限责任公司 | Distribution lines monitoring system based on fault indicator and loRa communication |
-
2016
- 2016-07-18 CN CN201620753600.XU patent/CN205880114U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107222931A (en) * | 2017-07-10 | 2017-09-29 | 深圳市信锐网科技术有限公司 | A kind of LoRa communication means and system |
| CN109061396A (en) * | 2018-10-10 | 2018-12-21 | 国网江苏省电力有限公司无锡供电分公司 | A kind of power distribution network traveling wave fault positioning method, apparatus and system |
| CN110351344A (en) * | 2019-06-25 | 2019-10-18 | 华南理工大学 | A kind of LoRa and 4G communication system of distributed power grid fault oscillograph |
| CN111769641A (en) * | 2020-06-29 | 2020-10-13 | 水木源华电气有限公司 | Intelligent terminal of power distribution internet of things |
| CN111769641B (en) * | 2020-06-29 | 2022-03-18 | 水木源华电气有限公司 | Intelligent terminal of power distribution internet of things |
| CN113866566A (en) * | 2021-10-26 | 2021-12-31 | 广东电网有限责任公司 | Distribution lines monitoring system based on fault indicator and loRa communication |
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