CN108535603A - A kind of power circuit automatic fault detection positioning system - Google Patents
A kind of power circuit automatic fault detection positioning system Download PDFInfo
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- CN108535603A CN108535603A CN201810497818.7A CN201810497818A CN108535603A CN 108535603 A CN108535603 A CN 108535603A CN 201810497818 A CN201810497818 A CN 201810497818A CN 108535603 A CN108535603 A CN 108535603A
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- power circuit
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- current
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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
- G01R31/088—Aspects of digital computing
Abstract
The invention discloses a kind of power circuit automatic faults to detect positioning system, including：Display unit is used to detect the real time data of power circuit and according to the status information of real time data output power circuit；Alarm unit is used to, when the safe range of the real time data and data in database that detect power circuit is not met, alarm is carried out to staff；Data acquisition module is connect with electric energy meter by RS485 buses and carries out data acquisition, main control chip, the signal transmitted with analysis module for receiving theoretical calculation, and passes to display unit, alarm unit and internet terminal by communication module.Analog quantity is converted to digital quantity by the present invention by high-precision A/D conversion chips, is input in main control chip, and the result after calculation processing is filtered, in this way, the precision that data information receives is high, improves accuracy；The safety for improving execute-in-place saves the cost of entire power information acquisition system.
Description
Technical field
The present invention relates to power circuit automatic faults to detect field of locating technology, specially a kind of power circuit automatic fault
Detect positioning system.
Background technology
Electric power line fault indicator is applied on electric line, power cable and switchgear inlet-outlet line, for referring to
Show the device of fault current circulation.Once line failure, track walker can be rapid to determine by the alarm indication of indicator
Fault point, debugging change blindness line walking in the past, and segmentation combined floodgate power transmission searches the backwardness way of failure.But traditional event
Barrier indicator uses Analogical Circuit Technique and small shell encapsulation design, realizes that function is too simple, detects the type of failure
It is excessively single, and track walker's on-the-spot make an inspection tour is needed, remote failure alarm is cannot achieve, there is prodigious technical limitation.
Application No. is the Chinese patent of CN201220288471.3, it discloses a kind of power line fault detection system,
Simultaneously remote alarms are detected to feeder line fault.A kind of power line fault detection system, including：Digital fault indicates
Device, the real time data for detecting power circuit, according to the status information of real time data output power circuit；Data collector,
Communication network is formed by short-distance wireless frequency modulation with the digital fault indicator, for acquiring the digital fault indicator
The status information of transmission, and data packet is made in the status information；Master controller is sent for receiving the data collector
Data packet, fault point and the fault type of power circuit are judged according to the information in data packet.The power circuit event of the present invention
Hinder detecting system, can realize the remote alarms of feeder line fault, realizes and a variety of feeder line faults are detected.
But said program has the following disadvantages：
1, when data acquire, due to not handling signal, it is be easy to cause data distortion, influences testing result；
2, lack and data are filtered, cause data processing speed slow, detection efficiency is low.
Invention content
The purpose of the present invention is to solve disadvantages existing in the prior art, and a kind of power circuit proposed event automatically
Barrier detection positioning system.
To achieve the above object, the present invention provides the following technical solutions：
A kind of power circuit automatic fault detection positioning system, including：
Display unit is used to detect the real time data of power circuit and is believed according to the state of real time data output power circuit
Breath；
Alarm unit is used for when the safe range of the real time data and data in database that detect power circuit is not met,
Alarm is carried out to staff；
Data acquisition module is connect with electric energy meter by RS485 buses and carries out data acquisition, and the data acquisition module will be adopted
The electric meter signal data of collection are converted to low-voltage, low current signal through the current transformer of voltage transformer and closed loop；
A/D conversion chips transmit the signal of coming for receiving voltage mutual inductor, current transformer and power sensor, then pass through
By passing to theoretical calculation and analysis module after data filtering modular filtration；
Main control chip, the signal transmitted with analysis module for receiving theoretical calculation, and display list is passed to by communication module
Member, alarm unit and internet terminal.
Preferably, the data acquisition module passes the electric meter signal data of acquisition through voltage sensor and closed loop current
Sensor is converted to low-voltage, low current signal.
Preferably, the data filtering module is mainly summarized and is made a summary to data, generates corresponding informative abstract；It will
The data got are compared with database data information is stored in, and extract the data information for having occurred and that variation.
Preferably, the main control chip is also associated with information memory cell, described information storage unit by communication module
For eeprom memory.
Preferably, the display unit includes：
Current detection circuit for the current status for detecting power circuit, is couple to the conducting wire of power circuit；
Wire insulation voltage detecting circuit for the Leakage Current for detecting the conducting wire, is couple to the conducting wire of power circuit；
Temperature sensing circuit for detecting the conductor temperature is couple to the conducting wire of power circuit；
Automatic electricity getting circuit for taking electric current from power circuit induction, is couple to the conducting wire of power circuit；
For the real time data of the power circuit received to be compared with the state threshold of preset power circuit and obtains electricity
The microcontroller of the status information on line of force road is couple to current detection circuit, wire insulation voltage detecting circuit and temperature detection
The output end of circuit.
Compared with prior art, the beneficial effects of the invention are as follows：Data acquisition module of the present invention believes the electric energy meter of acquisition
Number is converted to low-voltage, low current signal through voltage sensor and closed-loop current sensors, can be converted with minimum distortion former
Beginning signal has the characteristics that precision is high, the linearity is good, response is fast and overload capacity is strong, can effectively detect the information of line loss；By height
Analog quantity is converted to digital quantity by the A/D conversion chips of precision, is input in main control chip, the result after calculation processing into
Row filtering improves accuracy in this way, the precision that data information receives is high；The safety for improving execute-in-place saves entire
The cost of power information acquisition system.
Description of the drawings
Fig. 1 is present system schematic diagram.
Specific implementation mode
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation describes, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Referring to Fig. 1, the present invention provides a kind of technical solution：
A kind of power circuit automatic fault detection positioning system, including：
Display unit is used to detect the real time data of power circuit and is believed according to the state of real time data output power circuit
Breath；
Alarm unit is used for when the safe range of the real time data and data in database that detect power circuit is not met,
Alarm is carried out to staff；
Data acquisition module is connect with electric energy meter by RS485 buses and carries out data acquisition, and the data acquisition module will be adopted
The electric meter signal data of collection are converted to low-voltage, low current signal through the current transformer of voltage transformer and closed loop；
A/D conversion chips transmit the signal of coming for receiving voltage mutual inductor, current transformer and power sensor, then pass through
By passing to theoretical calculation and analysis module after data filtering modular filtration；
Main control chip, the signal transmitted with analysis module for receiving theoretical calculation, and display list is passed to by communication module
Member, alarm unit and internet terminal.
The data acquisition module turns the electric meter signal data of acquisition through voltage sensor and closed-loop current sensors
It is changed to low-voltage, low current signal.
The data filtering module is mainly summarized and is made a summary to data, and corresponding informative abstract is generated；By the acquisition
To data be compared with database data information is stored in, extract and have occurred and that the data information of variation.
The main control chip is also associated with information memory cell by communication module, and described information storage unit is EEPROM
Memory.
The display unit includes：
Current detection circuit for the current status for detecting power circuit, is couple to the conducting wire of power circuit；
Wire insulation voltage detecting circuit for the Leakage Current for detecting the conducting wire, is couple to the conducting wire of power circuit；
Temperature sensing circuit for detecting the conductor temperature is couple to the conducting wire of power circuit；
Automatic electricity getting circuit for taking electric current from power circuit induction, is couple to the conducting wire of power circuit；
For the real time data of the power circuit received to be compared with the state threshold of preset power circuit and obtains electricity
The microcontroller of the status information on line of force road is couple to current detection circuit, wire insulation voltage detecting circuit and temperature detection
The output end of circuit.
The current detection circuit includes：
The first current transformer for the primary current in sample power line conductor；
Signal rectification filter circuit for the secondary current for receiving the output of the first current transformer, exports flat wave signal, half-wave
Signal and notched signal；
The first analog-to-digital conversion electricity for flat wave signal, half-wave signa and the notched signal of analog form to be converted to digital signal
Road, output end are couple to the input terminal of microcontroller.
The wire insulation voltage detecting circuit includes：
Electric field induction piece for the Leakage Current for detecting conducting wire, is couple to power line lead；
Signal rectification filter circuit for the inductive signal for receiving electric field induction piece, output lead insulation voltage detect signal；
The second analog to digital conversion circuit for the wire insulation voltage detection signal of analog form to be converted to digital signal, it is defeated
Outlet is couple to the input terminal of microcontroller.
The temperature sensing circuit includes：
Thermal conductive metal plate is in direct contact with power line lead；
Temp probe, one end are in contact with thermal conductive metal plate, and other end output temperature detects signal；
Signal amplification circuit, input terminal are couple to the other end of temp probe, and the output end output of signal amplification circuit is passed through
The temperature detection signal of amplification；
Third analog to digital conversion circuit for the temperature detection signal of analog form to be converted to digital signal, input terminal coupling
To signal amplification circuit, output end is couple to microcontroller.
The automatic electricity getting circuit includes：
For obtaining the second current transformer for taking electric current by electromagnetic induction, it is couple to power line lead；
Voltage-current transformation circuit is taken, to taking electric current to convert, exports the electric energy of digital fault indicator available form.
Data acquisition module of the present invention is by the electric meter signal data of acquisition through voltage sensor and closed-loop current sensors
Be converted to low-voltage, low current signal, can with minimum distortion converting raw signals, have that precision is high, the linearity is good, response is fast and
The features such as overload capacity is strong can effectively detect the information of line loss；Analog quantity is converted into number by high-precision A/D conversion chips
Amount, is input in main control chip, and the result after calculation processing is filtered, in this way, the precision that data information receives is high, carries
High accuracy；The safety for improving execute-in-place saves the cost of entire power information acquisition system.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
Understanding without departing from the principles and spirit of the present invention can carry out these embodiments a variety of variations, modification, replace
And modification, the scope of the present invention is defined by the appended.
Claims (5)
1. a kind of power circuit automatic fault detects positioning system, which is characterized in that including：
Display unit is used to detect the real time data of power circuit and is believed according to the state of real time data output power circuit
Breath；
Alarm unit is used for when the safe range of the real time data and data in database that detect power circuit is not met,
Alarm is carried out to staff；
Data acquisition module is connect with electric energy meter by RS485 buses and carries out data acquisition, and the data acquisition module will be adopted
The electric meter signal data of collection are converted to low-voltage, low current signal through the current transformer of voltage transformer and closed loop；
A/D conversion chips transmit the signal of coming for receiving voltage mutual inductor, current transformer and power sensor, then pass through
By passing to theoretical calculation and analysis module after data filtering modular filtration；
Main control chip, the signal transmitted with analysis module for receiving theoretical calculation, and display list is passed to by communication module
Member, alarm unit and internet terminal.
2. a kind of power circuit automatic fault according to claim 1 detects positioning system, it is characterised in that：The data
The electric meter signal data of acquisition are converted to low-voltage, low current by acquisition module through voltage sensor and closed-loop current sensors
Signal.
3. a kind of power circuit automatic fault according to claim 1 detects positioning system, it is characterised in that：The data
Filtering module is mainly summarized and is made a summary to data, and corresponding informative abstract is generated；By the data got be stored in
Database data information is compared, and extracts the data information for having occurred and that variation.
4. a kind of power circuit automatic fault according to claim 1 detects positioning system, it is characterised in that：The master control
Chip is also associated with information memory cell by communication module, and described information storage unit is eeprom memory.
5. a kind of power circuit automatic fault according to claim 1 detects positioning system, it is characterised in that：The display
Unit includes：
Current detection circuit for the current status for detecting power circuit, is couple to the conducting wire of power circuit；
Wire insulation voltage detecting circuit for the Leakage Current for detecting the conducting wire, is couple to the conducting wire of power circuit；
Temperature sensing circuit for detecting the conductor temperature is couple to the conducting wire of power circuit；
Automatic electricity getting circuit for taking electric current from power circuit induction, is couple to the conducting wire of power circuit；
For the real time data of the power circuit received to be compared with the state threshold of preset power circuit and obtains electricity
The microcontroller of the status information on line of force road is couple to current detection circuit, wire insulation voltage detecting circuit and temperature detection
The output end of circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810497818.7A CN108535603A (en) | 2018-05-23 | 2018-05-23 | A kind of power circuit automatic fault detection positioning system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810497818.7A CN108535603A (en) | 2018-05-23 | 2018-05-23 | A kind of power circuit automatic fault detection positioning system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108535603A true CN108535603A (en) | 2018-09-14 |
Family
ID=63472428
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810497818.7A Pending CN108535603A (en) | 2018-05-23 | 2018-05-23 | A kind of power circuit automatic fault detection positioning system |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110320874A (en) * | 2019-07-10 | 2019-10-11 | 上海建工材料工程有限公司 | The online fault detection method of the concrete production equipment of Intrusion Detection based on host electric current and system |
| CN112379303A (en) * | 2020-10-27 | 2021-02-19 | 国网黑龙江省电力有限公司哈尔滨供电公司 | Intelligent sensing system for grounding state of power transmission line |
| CN113495208A (en) * | 2021-06-10 | 2021-10-12 | 广州亚美信息科技有限公司 | Power circuit testing device, system and method for mounting circuit board |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101430357A (en) * | 2008-12-12 | 2009-05-13 | 深圳市科陆电子科技股份有限公司 | Energy consumption data acquisition method and system, and energy consumption management terminal |
| CN202424308U (en) * | 2011-10-14 | 2012-09-05 | 博爱县电业公司 | Transformer remote monitoring terminal |
| CN102749554A (en) * | 2012-06-19 | 2012-10-24 | 张忠华 | Electric power circuit fault detecting system |
| CN204595119U (en) * | 2015-04-29 | 2015-08-26 | 郑州大学 | Gong Biantai district electrical equipment information monitoring alarm terminal |
| CN105223451A (en) * | 2015-11-03 | 2016-01-06 | 国网山东邹城市供电公司 | A kind of intelligent line loss detector |
| CN204964678U (en) * | 2015-08-24 | 2016-01-13 | 江苏省电力公司南京供电公司 | Online positioning system of high tension cable line fault |
| CN205665347U (en) * | 2016-06-16 | 2016-10-26 | 国网山东省电力公司滨州供电公司 | 10kV distribution lines broken string fault detection and positioning system based on three phase voltage electric current |
| CN106443293A (en) * | 2016-08-15 | 2017-02-22 | 国家电网公司 | Direct current ground fault online detection and alarm device |
| CN106771722A (en) * | 2016-11-30 | 2017-05-31 | 国网福建省电力有限公司 | Feeder line fault on-line monitoring system |
-
2018
- 2018-05-23 CN CN201810497818.7A patent/CN108535603A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101430357A (en) * | 2008-12-12 | 2009-05-13 | 深圳市科陆电子科技股份有限公司 | Energy consumption data acquisition method and system, and energy consumption management terminal |
| CN202424308U (en) * | 2011-10-14 | 2012-09-05 | 博爱县电业公司 | Transformer remote monitoring terminal |
| CN102749554A (en) * | 2012-06-19 | 2012-10-24 | 张忠华 | Electric power circuit fault detecting system |
| CN204595119U (en) * | 2015-04-29 | 2015-08-26 | 郑州大学 | Gong Biantai district electrical equipment information monitoring alarm terminal |
| CN204964678U (en) * | 2015-08-24 | 2016-01-13 | 江苏省电力公司南京供电公司 | Online positioning system of high tension cable line fault |
| CN105223451A (en) * | 2015-11-03 | 2016-01-06 | 国网山东邹城市供电公司 | A kind of intelligent line loss detector |
| CN205665347U (en) * | 2016-06-16 | 2016-10-26 | 国网山东省电力公司滨州供电公司 | 10kV distribution lines broken string fault detection and positioning system based on three phase voltage electric current |
| CN106443293A (en) * | 2016-08-15 | 2017-02-22 | 国家电网公司 | Direct current ground fault online detection and alarm device |
| CN106771722A (en) * | 2016-11-30 | 2017-05-31 | 国网福建省电力有限公司 | Feeder line fault on-line monitoring system |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110320874A (en) * | 2019-07-10 | 2019-10-11 | 上海建工材料工程有限公司 | The online fault detection method of the concrete production equipment of Intrusion Detection based on host electric current and system |
| CN112379303A (en) * | 2020-10-27 | 2021-02-19 | 国网黑龙江省电力有限公司哈尔滨供电公司 | Intelligent sensing system for grounding state of power transmission line |
| CN113495208A (en) * | 2021-06-10 | 2021-10-12 | 广州亚美信息科技有限公司 | Power circuit testing device, system and method for mounting circuit board |
| CN113495208B (en) * | 2021-06-10 | 2023-12-26 | 广州亚美信息科技有限公司 | Device, system and method for testing power supply circuit of packaged circuit board |
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Application publication date: 20180914 |