CN205961116U - With electric information collection fault detection of system device - Google Patents
With electric information collection fault detection of system device Download PDFInfo
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- CN205961116U CN205961116U CN201620998441.XU CN201620998441U CN205961116U CN 205961116 U CN205961116 U CN 205961116U CN 201620998441 U CN201620998441 U CN 201620998441U CN 205961116 U CN205961116 U CN 205961116U
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Abstract
The utility model provides a with electric information collection fault detection of system device specifically contains: non - carrier communication module, carrier communication module, coupling isolation module, conversion module and embedded processing module, non - carrier communication module links to each other with the non - carrier communication circuit in outside for gather non - carrier signal and output, the coupling is kept apart the module and is linked to each other with outside low pressure circuit for keep apart power line and power frequency, and provide outside low pressure line output carrier signal's communication collection passageway, carrier communication module and coupling isolation module for keep apart the module through the coupling and gather carrier signal and output, conversion module respectively with non - carrier communication circuit in outside and coupling isolation module for gather non - carrier signal and carrier signal, and export after converting data signal into, embedded processing module NOT AND carrier communication module, carrier communication module and conversion module respectively links to each other for the communication fault condition according to data signal, non - carrier signal and carrier signal analytical calculation acquisition terminal.
Description
Technical field
This utility model is related to field of power detection, espespecially a kind of power information acquisition system failure detector.
Background technology
In order to carry out platform area line loss further and manage the specialized management of line loss, minimizing " evaporating, emitting, dripping or leaking of liquid or gas " phenomenon, 2016
State Grid Corporation of China carries out the work of same period Controlling line loss.This work based on delivery, power consumption synchronous acquisition, with public change
Depressor same period line loss on-line monitoring is core, strengthens programming count and the information transmission of line loss further, effectively improves company's warp
Ji benefit.In order to carry out the work of same period Controlling line loss, need to improve power information acquisition system, improve automatically sentencing of metering fault
Disconnected, rapid rush-repair ability, and then realize all standing of power information, full collection.In power information acquisition system, all kinds of electricity consumptions
Information acquisition terminal gathers the information of the field apparatus such as electric energy meter, is uploaded to power information acquisition system main website, in the process
Communication pattern is divided into downlink communication and two kinds of uplink communication.Low-voltage powerline carrier communication and RS485 communication be two kinds main
Local downlink communication mode.In the During Process of Long-term Operation of power information acquisition system, various interference factors often result in scene and adopt
Local communication fault in collection terminal.Although the test instrunments such as traditional signal analyzer, spectrum analyzer can obtain communication
Signal is analyzed, but lack of targeted, the level professional technology of user of service is required higher.Therefore, in the urgent need to exploitation
Professional failure detector accordingly, helps live operation maintenance personnel's quick positioning failure reason and eliminates fault it is ensured that being
System stable operation, thus improve same period Controlling line loss work efficiency.
For solving the above problems, in prior art, there are following two processing schemes：(1) adopt traditional signal analyzer,
The test instrunments such as spectrum analyzer obtain power information acquisition system descending communication signal；(2) test instrunment specialty user of service
The signal of communication obtaining is analyzed, positioning failure reason is simultaneously eliminated.
The scheme being provided in above-mentioned prior art is practicable, but it has problems with：(1) traditional signal analysis
The test instrunment lack of targeted such as instrument, spectrum analyzer, the power line carrier, PLC to power information acquisition system and RS485 communication
Failure cause positioning is inaccurate, causes fault to be difficult to for a long time eliminate, the collection success rate of impact power information；(2) traditional letter
Number test instrunment such as analyser, spectrum analyzer requires higher to the level professional technology of user of service, is not suitable for looking forward in electric power
The large scale application of industry grass-roots unit.
Utility model content
This utility model purpose is to provide one kind to possess low voltage electric power carrier communication and RS485 communication test analysis work(
Can, Content of Communication integrity can be analyzed, scene quickly judges that power information gathers by detecting waveform and the frequency spectrum of signal of communication
Whether terminal and electric energy meter communication function are normal, can be used for helping electric power enterprise grass-roots work personnel analysis and process communication failure
Power information acquisition system failure detector.
For reaching above-mentioned purpose, power information acquisition system failure detector provided by the utility model, specifically comprise：
Non-carrier communication module, carrier communication module, coupling isolation module, modular converter and embedded processing module；Described non-carrier
Communication module is connected with outside non-carrier communication line, for gathering non-carrier signal and exporting；Described coupling isolation module with
Outer low pressure circuit is connected, for isolating electric lines of force and power frequency, and the communication providing outer low pressure circuit output carrier signal
Acquisition channel；Described carrier communication module couples isolation module with described, for gathering carrier wave by described coupling isolation module
Signal simultaneously exports；Described modular converter respectively with outside non-carrier communication line and described couple isolation module, non-for gathering
Carrier signal and carrier signal, and described non-carrier signal and described carrier signal are converted to output after digital signal；Described
Embedded processing module is connected with described non-carrier communication module, described carrier communication module and described modular converter respectively, uses
Input in the digital signal being inputted according to described modular converter and described non-carrier communication module and described carrier communication module
Non-carrier signal and the communication failure condition of carrier signal analytical calculation acquisition terminal.
In this utility model one preferred embodiment, described coupling isolation module also comprises signal filtering unit, described
Signal filtering unit is used for filtering radio frequency signal component according to predetermined threshold value.
In this utility model one preferred embodiment, described signal filtering unit also comprises attenuator, described attenuator
For adjusting described carrier signal to predefined size.
In this utility model one preferred embodiment, described modular converter and outside non-carrier communication line and described coupling
Close and be also associated with signal of communication selecting switch between isolation module, described signal of communication selecting switch control described modular converter with
Outside non-carrier communication line, and described modular converter couples the conducting of communication line or pass between isolation module with described
Close.
In this utility model one preferred embodiment, described embedded processing module comprises control unit, described control
Unit is connected with described signal of communication selecting switch, for controlling conversion described in described signal of communication selecting switch on and off
Module and outside non-carrier communication line, and described modular converter couples communication line between isolation module with described.
In this utility model one preferred embodiment, described embedded processing module comprises non-carrier communications analysis unit
With carrier communication analytic unit；Described non-carrier communications analysis unit is connected with described non-carrier communication module, for analyzing
State the non-carrier signal of non-carrier communication module output；Described carrier communication analytic unit is connected with described carrier communication module,
For analyzing the carrier signal of described carrier communication module output.
In this utility model one preferred embodiment, described non-carrier communication module comprise RS485 communication module and
RS232 communication module, described non-carrier communications analysis unit comprises RS485 communications analysis module and RS232 communications analysis module；
Described RS485 communication module is used for debugging 485 electric energy meters；Described RS232 communication module is used for debugging this ground of acquisition terminal
Row port；Described RS485 communication module is connected with described RS485 communications analysis module, described RS232 communication module with described
RS232 communications analysis module is connected.
In this utility model one preferred embodiment, described embedded processing module also comprises waveform display module sum
Word signal processing module；Described waveform display module is connected with described modular converter, non-for being shown according to described digital signal
Carrier signal and/or the waveform image of carrier signal；Described digital signal processing module is connected with described modular converter, for root
Calculate the frequency spectrum data obtaining described non-carrier signal and/or carrier signal according to described digital signal.
In this utility model one preferred embodiment, described embedded processing module also comprises frequency spectrum display module, institute
State frequency spectrum display module to be connected with described digital signal processing module, for showing spectral image letter according to described frequency spectrum data
Breath.
In this utility model one preferred embodiment, described coupling isolation module comprises sampling capacitor, isolating transformer
And sample resistance；Described sampling capacitor is used for the communication port isolated power frequency and provide carrier signal；Described isolating transformer
For described power information acquisition system failure detector is isolated with electric lines of force；Described sample resistance is used for as described electricity consumption
Information acquisition system failure detector provides corresponding interface impedance.
By power information acquisition system failure detector provided by the utility model, can determine whether to analyze acquisition terminal
Whether the carrier communication with electric energy meter or RS485 communication function are normal, can also show waveform and the frequency spectrum of signal of communication, two kinds
Function combines the communication failure that the electric power enterprise grass-roots work personnel analysis of help judges acquisition terminal.
Brief description
Accompanying drawing described herein is used for providing further understanding to of the present utility model, constitutes the part of the application,
Do not constitute to restriction of the present utility model.In the accompanying drawings：
Fig. 1 is the structural representation of power information acquisition system failure detector provided by the utility model.
Specific embodiment
Purpose, technical scheme and advantage for making this utility model embodiment become more apparent, with reference to embodiment
And accompanying drawing, this utility model is described in further details.Here, schematic description and description of the present utility model is used for
Explain this utility model, but be not intended as to restriction of the present utility model.
Refer to shown in Fig. 1, power information acquisition system failure detector provided by the utility model, concrete bag
Contain：Non-carrier communication module, carrier communication module, coupling isolation module, modular converter and embedded processing module；Described non-load
Wave communication module is connected with outside non-carrier communication line, for gathering non-carrier signal and exporting；Described coupling isolation module
It is connected with outer low pressure circuit, for isolating electric lines of force and power frequency, and provide the logical of outer low pressure circuit output carrier signal
Letter acquisition channel；Described carrier communication module couples isolation module with described, for being carried by described coupling isolation module collection
Ripple signal simultaneously exports；Described modular converter respectively with outside non-carrier communication line and described couple isolation module, for gathering
Non-carrier signal and carrier signal, and described non-carrier signal and described carrier signal are converted to output after digital signal；Institute
State embedded processing module to be connected with described non-carrier communication module, described carrier communication module and described modular converter respectively,
Digital signal and described non-carrier communication module and described carrier communication module for being inputted according to described modular converter input
Non-carrier signal and carrier signal analytical calculation acquisition terminal communication failure condition.
In this utility model one preferred embodiment, described coupling isolation module also comprises signal filtering unit, described
Signal filtering unit is used for filtering radio frequency signal component according to predetermined threshold value；In real work, this filter unit can be a letter
Number filter circuit, it is mainly used in filtering the radio frequency signal component beyond 50kHz～500kHz, it is to avoid powerful out of band signal
The dynamic range of impact receiving circuit.In this embodiment, described signal filtering unit further can comprise an attenuator, institute
State attenuator to be used for adjusting described carrier signal to predefined size, power-sensing circuit is met with the power that this makes input signal
Require, the concretely attenuator of 30dB.
In this utility model one preferred embodiment, described modular converter and outside non-carrier communication line and described coupling
Close and be also associated with signal of communication selecting switch between isolation module, described signal of communication selecting switch control described modular converter with
Outside non-carrier communication line, and described modular converter couples the conducting of communication line or pass between isolation module with described
Close；Intelligent and integrated for making power information acquisition system failure detector provided by the utility model have more, at this
In another preferred embodiment of utility model, described embedded processing module comprises control unit, described control unit with described
Signal of communication selecting switch is connected, for controlling modular converter described in described signal of communication selecting switch on and off and outside
Non-carrier communication line, and described modular converter couples communication line between isolation module with described.
In this utility model one preferred embodiment, described embedded processing module also comprises non-carrier communications analysis list
Unit and carrier communication analytic unit；Described non-carrier communications analysis unit is connected with described non-carrier communication module, for analyzing
The non-carrier signal of described non-carrier communication module output；Described carrier communication analytic unit and described carrier communication module phase
Even, for analyzing the carrier signal of described carrier communication module output；Wherein, described non-carrier communication module is mainly by main process task
The peripheral communication function of device and corresponding level shifting circuit are constituted, and comprise RS485 communication module and RS232 communication module；Real
In the work of border, RS232 communication module, the equipment such as infrared are mainly used to debug the local uplink port of acquisition terminal, start and test
Journey；RS485 interface is mainly used to debug the equipment such as 485 electric energy meters；Described non-carrier communications analysis unit comprises RS485 communication point
Analysis module and RS232 communications analysis module；Described RS485 communication module is used for debugging 485 electric energy meters；Described RS232 communication mould
Block is used for debugging the local uplink port of acquisition terminal；Described RS485 communication module and described RS485 communications analysis module phase
Even, described RS232 communication module is connected with described RS232 communications analysis module.
In this utility model one preferred embodiment, described embedded processing module also comprises waveform display module sum
Word signal processing module；Described waveform display module is connected with described modular converter, non-for being shown according to described digital signal
Carrier signal and/or the waveform image of carrier signal；Described digital signal processing module is connected with described modular converter, for root
Calculate the frequency spectrum data obtaining described non-carrier signal and/or carrier signal according to described digital signal；Described embedded processing mould
Block also comprises frequency spectrum display module, and described frequency spectrum display module is connected with described digital signal processing module, for according to described
Frequency spectrum data shows spectral image information.
In this utility model one preferred embodiment, described coupling isolation module comprises sampling capacitor, isolating transformer
And sample resistance；Described sampling capacitor is used for the communication port isolated power frequency and provide carrier signal；Described isolating transformer
For isolating described power information acquisition system failure detector with electric lines of force, with the personal safety of safeguard work personnel；
Described sample resistance is used for providing corresponding interface impedance for described power information acquisition system failure detector.
By power information acquisition system failure detector provided by the utility model, can determine whether to analyze acquisition terminal
Whether the carrier communication with electric energy meter or RS485 communication function are normal, can also show waveform and the frequency spectrum of signal of communication, two kinds
Function combines the communication failure that the electric power enterprise grass-roots work personnel analysis of help judges acquisition terminal.
According to above-described embodiment, power information acquisition system failure detector provided by the utility model makes actual
With in can efficiently accomplish collection collection terminal test function, electric energy meter test function and subtest function is Trinitarian comprehensive examines
Survey behavior, elaborates to above-mentioned functions testing process below based on power information acquisition system failure detector.
(1) acquisition terminal test function
Acquisition terminal test function includes the test of acquisition terminal carrier wave transmission power and receiving sensitivity test, due to collection
Terminal in local communication generally as main equipment, need in debugging at the scene for this by the communication interfaces such as infrared, RS232 with adopt
Collection terminal communication, and develop simulation table function in debugging apparatus, carry out response communication as from equipment and acquisition terminal.
Transmission power is tested：Start acquisition terminal to check meter order, commissioning device monitors acquisition terminal descending carrier signal, adopts
The power level of collection carrier module transmission signal, calculates the absolute power level being converted to carrier wave transmitting through calibration.
Accept sensitivity test：Simulated by way of table by acquisition terminal copy reading instrument internal, gradually reduce simulation table and carry
The transmission power of ripple module, can detection acquisition terminal normally receive simulation table data, to judge acquisition terminal carrier module
Receiving sensitivity.
(2) electric energy meter test function
Under carrier communication function testing mode, by debugging apparatus, message of checking meter is issued with carrier mode first, simultaneously etc.
Treat carrier wave meter feedback information, detection obtains electric energy meter carrier wave tranmitting frequency.The carrier wave gradually reducing message of checking meter by device is sent out
Penetrate power, until electric energy meter can not normally receive check meter order correct response, cycle detection carrier wave meter receiving sensitivity.
Under RS485 test pattern, debugging apparatus issue, by RS485, message of checking meter, and analyze the feedback message of electric energy meter,
Detect the virtual voltage of RS485 communication link simultaneously, whether normal for customer analysis RS485 link.
(3) subtest function
Subtest function includes doubtful signal power detection function and electric lines of force electromagnetic noise monitoring function.Doubtful signal
Power detection whether there is the signal of doubtful carrier wave in the frequency range that user sets mainly for detection of electric lines of force, if deposited
Then detect its power and update display.Power line noise detection function can be examined in the band limits of 50kHz-500kHz
Survey the power of all signals, and the pattern dynamic refresh metrical information with figure.Can facilitate customer analysis noise signal when
Between characteristic, band information and power distribution characteristics etc..
The utility model proposes power information acquisition system failure detector can be used for showing of local communication fault
Debugging, this device can effectively judge low pressure carrier wave and the RS485 communication interface practical communication energy of acquisition terminal and electric energy meter
Power is it is possible to effectively monitor the noise on electric lines of force.By to noise frequency range, time of origin and whether the feature such as continuous divide
Analysis, provides the foundation of science decision for maintenance, replacing carrier schemes etc..The diagram of the existing image of information that device is given, also has
Accurately data, is adapted to the user of different levels.This device can be real as test carrier wave and RS485 communication products scene
The main tool of border communication capacity, is also used as testing and improve the effective means of product communication mode, power information is adopted
Collection, the quality assurance of electric energy and operation maintenance play an important role.The synchronization of delivery, power consumption can be improved by this device
Acquisition rate, and then improve on-line monitoring, programming count and the information transfer efficiency of same period line loss, effectively improve corporate economy's effect
Benefit.
Particular embodiments described above, has carried out entering one to the purpose of this utility model, technical scheme and beneficial effect
Step describes in detail, be should be understood that and the foregoing is only specific embodiment of the utility model, is not used to limit this
The protection domain of utility model, all within spirit of the present utility model and principle, any modification of being made, equivalent, change
Enter, should be included within protection domain of the present utility model.
Claims (10)
1. a kind of power information acquisition system failure detector is it is characterised in that described detection means comprises：Non-carrier communicates
Module, carrier communication module, coupling isolation module, modular converter and embedded processing module；
Described non-carrier communication module is connected with outside non-carrier communication line, for gathering non-carrier signal and exporting；
Described coupling isolation module is connected with outer low pressure circuit, for isolating electric lines of force and power frequency, and provides outer low pressure
The communication acquisition channel of circuit output carrier signal；
Described carrier communication module couples isolation module with described, for gathering carrier signal simultaneously by described coupling isolation module
Output；
Described modular converter respectively with outside non-carrier communication line and described couple isolation module, for gathering non-carrier signal
And carrier signal, and described non-carrier signal and described carrier signal are converted to output after digital signal；
Described embedded processing module respectively with described non-carrier communication module, described carrier communication module and described modular converter
It is connected, for the digital signal and described non-carrier communication module and the described carrier communication module that are inputted according to described modular converter
The non-carrier signal of input and the communication failure condition of carrier signal analytical calculation acquisition terminal.
2. power information acquisition system failure detector according to claim 1 is it is characterised in that described coupling is isolated
Module also comprises signal filtering unit, and described signal filtering unit is used for filtering radio frequency signal component according to predetermined threshold value.
3. power information acquisition system failure detector according to claim 2 is it is characterised in that described signal filtering
Unit also comprises attenuator, and described attenuator is used for adjusting described carrier signal to predefined size.
4. power information acquisition system failure detector according to claim 1 is it is characterised in that described modular converter
It is also associated with signal of communication selecting switch with outside non-carrier communication line and described coupling, described communication letter between isolation module
Number selecting switch controls described modular converter and outside non-carrier communication line, and described modular converter couples isolation with described
The on and off of communication line between module.
5. power information acquisition system failure detector according to claim 4 is it is characterised in that described embedded place
Reason module comprises control unit, and described control unit is connected with described signal of communication selecting switch, for controlling described communication letter
Number modular converter described in selecting switch on and off and outside non-carrier communication line, and described modular converter and described coupling
Close communication line between isolation module.
6. power information acquisition system failure detector according to claim 1 is it is characterised in that described embedded place
Reason module comprises non-carrier communications analysis unit and carrier communication analytic unit；
Described non-carrier communications analysis unit is connected with described non-carrier communication module, for analyzing described non-carrier communication module
The non-carrier signal of output；
Described carrier communication analytic unit is connected with described carrier communication module, for analyzing described carrier communication module output
Carrier signal.
7. power information acquisition system failure detector according to claim 6 is it is characterised in that described non-carrier is led to
Letter module comprises RS485 communication module and RS232 communication module, and described non-carrier communications analysis unit comprises RS485 communication point
Analysis module and RS232 communications analysis module；
Described RS485 communication module is used for debugging 485 electric energy meters；
Described RS232 communication module is used for debugging the local uplink port of acquisition terminal；
Described RS485 communication module is connected with described RS485 communications analysis module, described RS232 communication module and described RS232
Communications analysis module is connected.
8. power information acquisition system failure detector according to claim 1 is it is characterised in that described embedded place
Reason module also comprises waveform display module and digital signal processing module；
Described waveform display module is connected with described modular converter, for according to described digital signal show non-carrier signal and/
Or the waveform image of carrier signal；
Described digital signal processing module is connected with described modular converter, described non-for calculating acquisition according to described digital signal
Carrier signal and/or the frequency spectrum data of carrier signal.
9. power information acquisition system failure detector according to claim 8 is it is characterised in that described embedded place
Reason module also comprises frequency spectrum display module, and described frequency spectrum display module is connected with described digital signal processing module, for basis
Described frequency spectrum data shows spectral image information.
10. power information acquisition system failure detector according to claim 1 it is characterised in that described coupling every
Comprise sampling capacitor, isolating transformer and sample resistance from module；
Described sampling capacitor is used for the communication port isolated power frequency and provide carrier signal；
Described isolating transformer is used for isolating described power information acquisition system failure detector with electric lines of force；
Described sample resistance is used for providing corresponding interface impedance for described power information acquisition system failure detector.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201620998441.XU CN205961116U (en) | 2016-08-30 | 2016-08-30 | With electric information collection fault detection of system device |
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| CN201620998441.XU CN205961116U (en) | 2016-08-30 | 2016-08-30 | With electric information collection fault detection of system device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106209166A (en) * | 2016-08-30 | 2016-12-07 | 国家电网公司 | Power information acquisition system failure detector |
| CN107453784A (en) * | 2017-07-25 | 2017-12-08 | 南方电网科学研究院有限责任公司 | Communication interface sensitivity test method and system |
| CN108809357A (en) * | 2018-05-05 | 2018-11-13 | 杭州得诚电力科技股份有限公司 | A kind of power carrier communication scene inspection device |
-
2016
- 2016-08-30 CN CN201620998441.XU patent/CN205961116U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106209166A (en) * | 2016-08-30 | 2016-12-07 | 国家电网公司 | Power information acquisition system failure detector |
| CN107453784A (en) * | 2017-07-25 | 2017-12-08 | 南方电网科学研究院有限责任公司 | Communication interface sensitivity test method and system |
| CN108809357A (en) * | 2018-05-05 | 2018-11-13 | 杭州得诚电力科技股份有限公司 | A kind of power carrier communication scene inspection device |
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