CN106771859A - Fault detector and its long range means of communication based on LoRa technologies - Google Patents
Fault detector and its long range means of communication based on LoRa technologies Download PDFInfo
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- CN106771859A CN106771859A CN201611115948.7A CN201611115948A CN106771859A CN 106771859 A CN106771859 A CN 106771859A CN 201611115948 A CN201611115948 A CN 201611115948A CN 106771859 A CN106771859 A CN 106771859A
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- Prior art keywords
- fault detector
- lora
- fault
- signal
- wireless communication
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Classifications
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- 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
- G01R31/08—Locating faults in cables, transmission lines, or networks
- G01R31/081—Locating faults in cables, transmission lines, or networks according to type of conductors
- G01R31/085—Locating faults in cables, transmission lines, or networks according to type of conductors in power transmission or distribution lines, e.g. overhead
-
- 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
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
Abstract
The invention discloses the fault detector based on LoRa technologies and its long range means of communication, the fault detector based on LoRa technologies includes：CT electricity-fetching modules, for the current transformer power taking by hanging over powered distribution overhead line, output electric energy is powered for whole fault detector；The signal picker being connected with CT electricity-fetching modules, for gathering the current signal on power line and voltage signal；The wave filter being connected with signal picker, for current signal and voltage signal to be filtered and amplified, obtains removing the voltage signal and current signal after interference；The microcontroller being connected with wave filter, for exporting fault message；The LoRa wireless communication modules being connected with microcontroller.It can be seen that, the fault detector improves the distance between fault detector and data concentrator on the premise of fault detector power consumption is not increased, and realizes communicating over long distances.
Description
Technical field
The present invention relates to technical field of power systems, more particularly to the fault detector based on LoRa technologies and its it is long away from
From the means of communication.
Background technology
At present, fault detector is arranged on distribution line, by detecting the electric current and electric field of distribution line, is then passed through
Calculate to judge the short trouble or earth fault of distribution line, and by transmitting wirelessly data to distribution background server,
So as to fast and accurately fault point in time, it is easy to attendant to rush to repair in time, recovers circuit normal power supply.Existing event
Barrier indicator typically uses two kinds of wireless communication modes, and one kind is less than using based on FSK modulation mode Sub 1GHz communications
1GHz frequency communications, another kind is used based on 2.4G direct sequence spread spectrum technologies ZigBee communications.
The fault detector of both the above technology belongs to low rate, near-field communication (10 meters -100 meters), when need improve
During communication distance between fault detector, when realizing communicating over long distances, a kind of method is to improve wireless amplifying power, so that significantly
The power consumption of the increase device of degree, causes power consumption too high.Due to the particularity of the application of fault detector, it is installed on
On distribution line, by wirelessly being communicated with data concentrator, the power taking from circuit using open-close type current transformer, when circuit has
During electric current, current transformer power taking supplies fault indicator, when not having electricity or electric current smaller on circuit, using internal cell
Power supply, so increasing the shortening that power consumption necessarily brings its service life.
The content of the invention
It is an object of the invention to provide the fault detector based on LoRa technologies and its long range means of communication, the failure refers to
Show that device improves the distance between fault detector and data concentrator on the premise of fault detector power consumption is not increased, realize
The long range communication of fault detector.
In order to solve the above technical problems, the present invention provides the fault detector based on LoRa technologies, including：
CT electricity-fetching modules, for the current transformer power taking by hanging over powered distribution overhead line, output electric energy is supplied
Whole fault detector is powered；
The signal picker being connected with the CT electricity-fetching modules, for gathering the current signal on power line and voltage letter
Number；
The wave filter being connected with the signal picker, for current signal and voltage signal to be filtered and are amplified,
Obtain removing the voltage signal and current signal after interference；
The microcontroller being connected with the wave filter, for exporting fault message；
The LoRa wireless communication modules being connected with the microcontroller, for fault message to be sent into data set
Device.
Preferably, the fault detector also includes：
The flashing trafficator being connected with the microcontroller, for when microcontroller finds line fault, entering
Portable lighter light is glittering.
Preferably, the fault detector also includes：
The microprocessor being connected with the LoRa wireless communication modules, for power supply and work(to LoRa wireless communication modules
Rate is controlled.
Preferably, the LoRa wireless communication modules include radio frequency chip, dual-mode antenna and crystal oscillating circuit.
Preferably, dual-mode antenna is connected with radio frequency chip, and crystal oscillating circuit is connected with radio frequency chip.
The present invention also provides a kind of long range means of communication of the fault detector based on LoRa technologies, the indicating fault
Device is above-mentioned fault detector, and the method includes：
The fault detector carries out radio communication using the LoRa wireless communication modules and LoRa gateways, and failure is believed
Breath is sent to LoRa gateways；
LoRa gateways send to background server fault message by GPRS network.
Fault detector and its long range means of communication based on LoRa technologies provided by the present invention, the fault detector
It is arranged on distribution line, including：CT electricity-fetching modules, for being taken by hanging over the current transformer of powered distribution overhead line
Electricity, output electric energy is powered for whole fault detector；The signal picker being connected with the CT electricity-fetching modules, for gathering electric power
Current signal and voltage signal on line；The wave filter being connected with the signal picker, for believing current signal and voltage
Number it is filtered and amplifies, obtains removing the voltage signal and current signal after interference；The microcontroller being connected with the wave filter
Device MCU, for exporting fault message；The LoRa wireless communication modules being connected with the microcontroller, for by fault message
Send to data concentrator.It can be seen that, the fault detector employs LoRa wireless communication modules and is wirelessly transferred carrying out data,
LoRa wireless communication modules are transmitted data based on LoRa Technology of Wireless Spread Spectrum, have the advantages that long transmission distance, low in energy consumption,
LoRa technical advantages are thus based on, using the characteristic of the long range low-power consumption of the spread-spectrum modulation technique of itself, are not increasing event
The distance between fault detector and data concentrator are improve on the premise of barrier indicator power consumption, the length of fault detector is realized
Distance communication, i.e., need not improve the long range communication that wireless amplifying power can be achieved with fault detector.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
The accompanying drawing to be used needed for having technology description is briefly described, it should be apparent that, drawings in the following description are only this
Inventive embodiment, for those of ordinary skill in the art, on the premise of not paying creative work, can also basis
The accompanying drawing of offer obtains other accompanying drawings.
The fault detector structural representation based on LoRa technologies that Fig. 1 is provided by the embodiment of the present invention；
The stream of the long range means of communication of the fault detector based on LoRa technologies that Fig. 2 is provided by the embodiment of the present invention
Cheng Tu；
Fig. 3 is the long range communication schematic diagram based on fault detector and LoRa gateways.
Specific embodiment
Core of the invention is to provide fault detector and its long range means of communication based on LoRa technologies, and the failure refers to
Show that device improves the distance between fault detector and data concentrator on the premise of fault detector power consumption is not increased, realize
The long range communication of fault detector.
In order that those skilled in the art more fully understand the present invention program, below in conjunction with the embodiment of the present invention
Accompanying drawing, is clearly and completely described to the technical scheme in the embodiment of the present invention, it is clear that described embodiment is only
A part of embodiment of the present invention, rather than whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art
The every other embodiment obtained under the premise of creative work is not made, belongs to the scope of protection of the invention.
Refer to Fig. 1, the structural representation of the fault detector based on LoRa technologies that Fig. 1 is provided by the embodiment of the present invention
Figure, the fault detector includes：
CT electricity-fetching modules 101, for the current transformer power taking by hanging over powered distribution overhead line, export electric energy
Powered for whole fault detector；
The signal picker 102 being connected with CT electricity-fetching modules 101, for gathering the current signal on power line and voltage letter
Number；
The wave filter 103 being connected with signal picker 102, for current signal and voltage signal to be filtered and put
Greatly, obtain removing the voltage signal and current signal after interference；
The microcontroller 104 being connected with wave filter 103, for removing voltage signal and current signal after interference
Data processing and calculating are carried out, after finding that circuit breaks down, fault message is exported；
The LoRa wireless communication modules 105 being connected with microcontroller 104, for fault message to be sent to data set
Middle device.
It can be seen that, the fault detector employs LoRa wireless communication modules and is wirelessly transferred carrying out data, LoRa channel radios
News module is transmitted data based on LoRa Technology of Wireless Spread Spectrum, has the advantages that long transmission distance, low in energy consumption, is thus based on
LoRa technical advantages, using the characteristic of the long range low-power consumption of the spread-spectrum modulation technique of itself, are not increasing fault detector
The distance between fault detector and data concentrator are improve on the premise of power consumption, realizes that the long range of fault detector is led to
News, i.e., need not improve the long range communication that wireless amplifying power can be achieved with fault detector.
Based on above-mentioned fault detector, specifically, the fault detector also includes：The sudden strain of a muscle being connected with microcontroller
Light indicator lamp, for when microcontroller finds line fault, carrying out light glittering.
Further, the fault detector also includes：The microprocessor being connected with LoRa wireless communication modules, for right
The power supply and power of LoRa wireless communication modules are controlled.Microprocessor is specially LoRa communications triggering and monitoring module.
Wherein, LoRa wireless communication modules include radio frequency chip, dual-mode antenna and crystal oscillating circuit.Dual-mode antenna and radio frequency core
Piece is connected, and crystal oscillating circuit is connected with radio frequency chip.
Wherein, microcontroller carries out data processing and calculating to removing voltage signal and current signal after interference, when
It was found that after circuit breaks down, exporting fault message.
The fault detector realizes the long range communication of fault detector, i.e., need not improve wireless amplifying power and can be achieved with
The long range communication of fault detector, solves the fault detector communication distance and whole machine on system for distribution network of power distribution line
Contradictory relation between power consumption, and related impacted communication reliability, the complexity of system.The fault detector uses LoRa
Mechanics of communication realizes the long range communication of fault detector, improves the reliability of the fault detector communication under complex situations,
Ensure that the real-time and reliability of whole system communication.
CT electricity-fetching modules by hanging over the current transformer power taking of powered distribution overhead line, output electric energy for whole therefore
Barrier indicator is powered., to wave filter, wave filter is to input signal for Current Voltage and output on signal picker collection power line
It is filtered and amplifies, extract useful signal, removes the signal output after interference to microcontroller.MCU carries out data
Treatment and algorithm are calculated, and after the abnormal conditions such as circuit failure, short circuit are found, are output control signals to flashing trafficator and are entered
Row is indicated, while also fault message is gone out by wireless transmission.
LoRa wireless communication modules realize the reception and transmission of wireless data, and simultaneous communications module is connected to microprocessor,
Microprocessor realizes the monitoring and control, when communication module has detected air message, micro- place to LoRa wireless communication modules
Reason device can trigger MCU micro controller modules and be detected, analyzing the classification of this message and being processed accordingly, microprocessor is also
Power supply and power to wireless communication module are controlled, to reach the minimum power of whole system.
The present invention employs LoRa wireless technologys by LoRa wireless communication modules, has merged digital spread spectrum, data signal
Treatment and forward error correction coding technology, that is, maintain similar frequency shift keying fsk modulation identical low power consumption characteristic, and significantly increase
Add communication distance, while improve network efficiency and eliminate interference, using the barrier indicator of this technology even with identical
Frequency simultaneously send data will not also interfere, so as to improve the parallel processing capability of data communication.
Formally reasonably using LoRa technical advantages are based on, one utilizes it to the long range means of communication of this fault detector
The characteristic of the spread-spectrum modulation technique long range low-power consumption of itself, failure is improve on the premise of fault detector power consumption is not increased
The distance between indicator and data concentrator.Furthermore it is also possible to increase a gateway for the fault detector of relatively long distance
Equipment, this gateway uses star network networking mode, intelligent MANET, and it can not only be logical in the fault detector of relatively long distance
News, and the access capability and Large Volume Data disposal ability of Large Copacity fault detector equipment can be provided.
The fault detector based on LoRa technologies that the present invention is provided can significantly subtract relative to existing fault detector
On the premise of the power consumption of few fault detector, remain to realize the long range communication of equipment；Due to using the spread spectrum skill based on LoRa
The communication modes of art, strengthen the reliability of the fault detector communication under complex situations, it is ensured that the real-time of whole system；
Using fault detector and its Communication Gateway, intelligent star ad hoc network is constructed, make being optimized for whole network, realized
The long range communication of fault detector farther out.
Fig. 2 is refer to, the long range of the fault detector based on LoRa technologies that Fig. 2 is provided by the embodiment of the present invention is led to
The flow chart of communication method, fault detector is above-mentioned fault detector, and the method includes：
S11：Fault detector carries out radio communication using LoRa wireless communication modules and LoRa gateways, and fault message is sent out
Deliver to LoRa gateways；
S12：LoRa gateways send to background server fault message by GPRS network.
This method is used to realize longer telecommunication that increasing by one for the fault detector of relatively long distance to be based on
The gateway device of LoRa technologies is LoRa gateways, and this gateway uses star network networking mode, intelligent MANET, and it can not only be in
The fault detector communication of relatively long distance, and the access capability and Large Volume Data of Large Copacity fault detector equipment can be provided
Disposal ability, so greatly reduces the trunking and data concentrator in former fault detector network, cost-effective.Fig. 3
It is the long range communication schematic diagram based on fault detector and LoRa gateways.
In the prior art, another method for realizing telecommunication is increased between fault detector and data concentrator
Plus repeater, on the premise of fault detector power consumption is not increased, realize the communication of long range, but extra increase repeater meeting
Increase considerably cost.This method constructs intelligent star using fault detector and its Communication Gateway based on LoRa technologies
Ad hoc network, makes being optimized for whole network, realizes the long range communication of fault detector farther out.The method uses base
In the fault detector and its Communication Gateway equipment of LoRa technologies, long range low-power consumption communication is realized, the data of Large Copacity are gulped down
Tell, abundant node access capability, reduce repeater and the quantity of concentrator devices configuration in system, it is cost-effective.
The fault detector based on LoRa technologies provided by the present invention and its long range means of communication are carried out above
It is discussed in detail.Specific case used herein is set forth to principle of the invention and implementation method, above example
Illustrate that being only intended to help understands the method for the present invention and its core concept.It should be pointed out that for the common skill of the art
For art personnel, under the premise without departing from the principles of the invention, some improvement and modification can also be carried out to the present invention, these change
Enter and modify to also fall into the protection domain of the claims in the present invention.
Claims (6)
1. a kind of fault detector based on LoRa technologies, it is characterised in that be arranged on distribution line, including：
CT electricity-fetching modules, for the current transformer power taking by hanging over powered distribution overhead line, output electric energy is for whole
Fault detector is powered；
The signal picker being connected with the CT electricity-fetching modules, for gathering the current signal on power line and voltage signal；
The wave filter being connected with the signal picker, for current signal and voltage signal to be filtered and amplified, obtains
Remove the voltage signal and current signal after interference；
The microcontroller being connected with the wave filter, for exporting fault message；
The LoRa wireless communication modules being connected with the microcontroller, for fault message to be sent to data concentrator.
2. fault detector as claimed in claim 1, it is characterised in that also include：
The flashing trafficator being connected with the microcontroller, for when microcontroller finds line fault, entering portable lighter
Light is glittering.
3. fault detector as claimed in claim 2, it is characterised in that also include：
The microprocessor being connected with the LoRa wireless communication modules, enters for the power supply and power to LoRa wireless communication modules
Row control.
4. fault detector as claimed in claim 3, it is characterised in that the LoRa wireless communication modules include radio frequency core
Piece, dual-mode antenna and crystal oscillating circuit.
5. fault detector as claimed in claim 4, it is characterised in that dual-mode antenna is connected with radio frequency chip, crystal oscillating circuit
It is connected with radio frequency chip.
6. a kind of long range means of communication of the fault detector based on LoRa technologies, it is characterised in that the fault detector
Fault detector described in any one in claim 1 to 5, the method includes：
The fault detector carries out radio communication using the LoRa wireless communication modules and LoRa gateways, and fault message is sent out
Deliver to LoRa gateways；
LoRa gateways send to background server fault message by GPRS network.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201611115948.7A CN106771859A (en) | 2016-12-07 | 2016-12-07 | Fault detector and its long range means of communication based on LoRa technologies |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611115948.7A CN106771859A (en) | 2016-12-07 | 2016-12-07 | Fault detector and its long range means of communication based on LoRa technologies |
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| CN201611115948.7A Pending CN106771859A (en) | 2016-12-07 | 2016-12-07 | Fault detector and its long range means of communication based on LoRa technologies |
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Cited By (5)
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| CN108387804A (en) * | 2018-05-02 | 2018-08-10 | 广东电网有限责任公司 | Overhead transmission line attention device, device and method |
| CN109358266A (en) * | 2018-09-27 | 2019-02-19 | 固力发电气有限公司 | One kind making somebody a mere figurehead teletransmission type malfunction indicator system based on 4G mechanics of communication |
| CN110995319A (en) * | 2019-12-16 | 2020-04-10 | 科大智能电气技术有限公司 | Fault indicator monitoring system and method in scene without network service |
| CN111273571A (en) * | 2018-12-04 | 2020-06-12 | 珠海格力电器股份有限公司 | Equipment running state monitoring method, device and system, storage medium and equipment |
| CN116908617A (en) * | 2023-07-21 | 2023-10-20 | 国网湖北省电力有限公司云梦县供电公司 | Distribution overhead line vase flashover fault locator |
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Cited By (5)
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|---|---|---|---|---|
| CN108387804A (en) * | 2018-05-02 | 2018-08-10 | 广东电网有限责任公司 | Overhead transmission line attention device, device and method |
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| CN111273571A (en) * | 2018-12-04 | 2020-06-12 | 珠海格力电器股份有限公司 | Equipment running state monitoring method, device and system, storage medium and equipment |
| CN110995319A (en) * | 2019-12-16 | 2020-04-10 | 科大智能电气技术有限公司 | Fault indicator monitoring system and method in scene without network service |
| CN116908617A (en) * | 2023-07-21 | 2023-10-20 | 国网湖北省电力有限公司云梦县供电公司 | Distribution overhead line vase flashover fault locator |
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