CN207022002U - Power line carrier module analoging detecting device - Google Patents
Power line carrier module analoging detecting device Download PDFInfo
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- CN207022002U CN207022002U CN201721025563.1U CN201721025563U CN207022002U CN 207022002 U CN207022002 U CN 207022002U CN 201721025563 U CN201721025563 U CN 201721025563U CN 207022002 U CN207022002 U CN 207022002U
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Abstract
It the utility model is related to the detection means of the carrier chip, communication module, measurement meter, integrated meter reading that low-voltage powerline carrier communication meter reading is related to etc., specially power line carrier module analoging detecting device.Prior art is solved using monomer module as test object, the problem of failing to be tested on the whole from whole carrier communication network, therefore the actual overall using effect after networking can not be investigated.The detection means includes three-phase distribution cabinet, a concentrator communication cabinet, seven carrier wave meter communication cabinets, main website that is being communicated with concentrator communication cabinet and being provided with meter reading inspection software, for controlling the control computer of concentrator communication cabinet and each carrier wave meter communication cabinet.The utility model is to establish a kind of low-voltage powerline carrier communication emulation detection analog network system, using whole carrier communication network as overall object, the application process of analogue simulation carrier communication meter reading, using result of practical application as foundation, realize to simulating detection and analysis in different model carrier module net.
Description
Technical field
The utility model is related to carrier chip, communication module, measurement meter that low-voltage powerline carrier communication meter reading is related to,
The detection means of centralized automatic meter-reading etc., specially power line carrier module analoging detecting device.
Background technology
Control field is destroyed in intelligent grid, domestic and international electric power enterprise has successively carried out large-scale automation to low pressure electricity consumer
Centralized automatic meter-reading and remote control construction, south China power network and national grid Two large pools company have also built in large scale low
Press centralized automatic meter-reading network.Low-voltage powerline carrier communication directly need not can additionally be increased manually due to it using power line network
And the advantages that Material Cost, it is widely used in low-voltage collecting meter reading table construction.It is related to yet with carrier communication meter reading
The equipment suppliers such as carrier chip, communication module, measurement meter, integrated meter reading are numerous, and technical merit differs, in addition domestic to use
Influence of the electric network complexity to carrier communication quality, amid all these factors, the actual meter reading of various regions electric power enterprise centralized automatic meter-reading
Effect desired level has great difference, and meter reading effect is difficult to examine.
In order to strictly control the quality of these meter reading communication equipments, the provincial electric power enterprise in part has also built carrier communication reality
Room is tested, networking detection is carried out to correlation module.But these detections have also carried out interchangeability, the work(of physical dimension just for module
The verification tests such as rate loss, function, generally using monomer module as test object, fail integrally enterprising from whole carrier communication network
Row test, therefore the actual overall using effect after networking can not be investigated.
The content of the invention
The utility model, using monomer module as test object, fails overall from whole carrier communication network for prior art
On tested, therefore the problem of can not be investigated to the actual overall using effect after networking, establish a kind of low-voltage power
Line carrier communication emulation detection network system --- power line carrier module analoging detecting device, with whole carrier communication network system
For overall object, the application process of analogue simulation carrier communication meter reading, using result of practical application as foundation, to the load of different vendor
Wave communication module and its meter reading network function performance are compared to be judged with effect, is built for electric power enterprise during centralized automatic meter-reading
Screen and select high-quality and efficient communication products provides effective foundation.
The utility model adopts the following technical scheme that realization：Power line carrier module analoging detecting device, including three-phase
Power distribution cabinet, a concentrator communication cabinet, seven structures are identical and the carrier wave meter communication cabinet that is arranged in order, lead to concentrator communication cabinet
Main website that is letter and being provided with meter reading inspection software（Main website is not shown in Fig. 1）, for controlling concentrator communication cabinet and each carrier wave
The control computer of table communication cabinet, three-phase distribution cabinet provide main power supply, 220V for concentrator communication cabinet and each carrier wave meter communication cabinet
Power supply is concentrator communication cabinet and each carrier wave meter communication cabinet provides measurement and special equipment uses power supply.
Carrier wave meter communication cabinet includes delay switch, power isolation module, artificial mains network's module, No. five synthesizers, journey
Control attenuator, frequency spectrograph, the carrier wave dial framework of multi-epitope；Three-phase distribution cabinet connects delay switch, delay switch connection isolated from power
Module, power isolation module connection artificial mains network's module, artificial mains network's module connection multi-epitope carrier wave dial framework and
The first via of No. five synthesizers（No. five synthesizers be per function all the way well known to a person skilled in the art, to distinguish five tunnels,
The first via, the tunnel of the second tunnel ... ... the 5th are defined as by the order of description）, the second tunnel connection of No. five synthesizers is program control to decline
Subtract device, the 3rd tunnel of No. five synthesizers（Netting twine）Frequency spectrograph is connected, the 4th tunnel of No. five synthesizers connects adjacent next load
Programmable attenuator in wave table communication cabinet.
Concentrator communication cabinet includes delay switch, power isolation module, artificial mains network's module, No. three synthesizers, made an uproar
Sound source module, frequency spectrograph, concentrator frame；Three-phase distribution cabinet connects delay switch, delay switch connection power isolation module, power supply
Isolation module connects artificial mains network's module, and artificial mains network's module connects the first of concentrator Jia Ji No. tri- synthesizers
Road, the second tunnel of No. three synthesizers connect the programmable attenuator of first carrier wave meter communication cabinet, the 3rd tunnel of No. three synthesizers（Net
Line）Frequency spectrograph is connected, noise source model connects the 5th tunnel of No. five synthesizers of each carrier wave meter communication cabinet respectively.
Control computer is connected by RS485 buses with the programmable attenuator of each carrier wave meter communication cabinet, and control computer is led to
The noise source model and frequency spectrograph for crossing netting twine and concentrator communication cabinet are connected, control computer by netting twine respectively with each carrier wave meter
The frequency spectrograph connection of communication cabinet.
In use, equipment under test concentrator and carrier electric energy meter are connected respectively to the carrier wave dial framework of concentrator frame and multi-epitope
On.The signal transmission path of the power line carrier module analoging detecting device is as follows：The signal that concentrator is sent communicates through concentrator
Artificial mains network's module of cabinet, into after No. three synthesizers, then it is respectively fed to the frequency spectrograph of concentrator communication cabinet（Shown
Show）With the programmable attenuator of first carrier wave meter communication cabinet, signal after the programmable attenuator of first carrier wave meter communication cabinet again
No. five synthesizers of first carrier wave meter communication cabinet are sent into, are sent into the signal of No. five synthesizers of first carrier wave meter communication cabinet again
It is divided into three tunnels：Enter artificial mains network's module of first carrier wave meter communication cabinet all the way, and then lead into first carrier wave meter
Believe the carrier wave dial framework of the multi-epitope of cabinet, the frequency spectrograph that another way enters first carrier wave meter communication cabinet is shown, then is entered all the way
Enter the programmable attenuator of adjacent next carrier wave meter communication cabinet；Transmission of the signal in adjacent next carrier wave meter communication cabinet
Path is identical with first carrier wave meter communication cabinet, by that analogy, until last carrier wave meter communication cabinet；Concentrator leads to simultaneously
The noise source model of letter cabinet sends noise signal to No. five synthesizers of each carrier wave meter communication cabinet respectively.Control computer passes through
Programmable attenuator in each carrier wave meter communication cabinet of RS485 bus marcos, while in control computer control concentrator communication cabinet
Frequency spectrograph in noise source model and concentrator communication cabinet and each carrier wave meter communication cabinet, and with concentrator communication cabinet and each carrier wave meter
Frequency spectrograph in communication cabinet carries out data transmission.Above-mentioned signal transmission path is reversible, so as to realize the carrier wave from multi-epitope
The signal of dial framework to concentrator frame transmits.
Artificial mains network's module uncouples carrier signal point from the power supply between low pressure meter-copy collector and electric energy meter
From；Programmable attenuator applies the decay of certain amplitude to the signal of communication after separation, and noise source model applies arrowband, broadband noise
Interference, to simulate impedance and various interference signals caused by power line and electrical equipment in practical communication circuit, finally pass through again
People crosses electric power network module by coupling communication signals to power supply, is inputted through mains supply line to equipment under test, completes low pressure
Communication between meter-copy collector and electric energy meter.
Power isolation module suppresses the high and low frequency interference signal contained in power supply, slackens ambient noise to test circuit
Influence, while also improve the electrical isolation performance between input, out-put supply, protect follow-up control loop.
The artificial mains network of 10kHz ~ 30MHz conduction bandwidth provides unified 50 stable Ω impedances for detection network, will
Interference signal from power network is further isolated with test circuit, and by equipment under test（Low pressure concentrator and carrier electric energy meter）
Carrier signal uncouple to measurement circuit, or the carrier signal after decay and interference will be applied with by measurement circuit coupled to tested
Equipment.
Programmable attenuator can adjust the signal level of measurement circuitry in the case of not interrupt circuit with 1dB stepped forms,
To adjust the power level in test system.
The power line carrier module analoging detecting device can realize following detection function：
1. meter reading efficiency detects, under the support of the meter reading inspection software of main website, can increase respectively under background environment, step by step
Add under attenuation and inject in the case of noise signal, investigate meter reading success rate under varying environment, averagely meter reading number respectively,
The parameters such as meter reading data response time, to examine whole emulation taiwan area meter reading efficiency.
2. signal receiving sensitivity detects, gradually increase signal attenuation amplitude in communication process, finding maximum can meter reading
The critical value of decay, set frequency spectrograph peak-peak to keep, ordered when being sent from concentrator to ammeter without the broadcast pair for returning to frame,
Frequency spectrograph signal amplitude is recorded, carrier wave receiving sensitivity is designated as, to avoid the time-varying contingency of carrier communication, can repeatedly monitor
Sensitivity, take mathematical mean.
3. routeing networking time detecting, existing routing iinformation in concentrator is removed.Measurement point in concentrator is reset to join
Number, and will issue the deadline and be designated as routeing networking time started, cycle lasting copy reading ammeter data, when the success of copy reading data
After rate reaches more than 90%, the networking end time is designated as.The time difference of end time and time started are calculated, is designated as routeing networking
Time.
4. route relaying depth detection, gradually increases attenuation amplitude between concentrator and ammeter at different levels, find maximum and decline
The critical value subtracted, and the maximum attenuation critical value is arranged on attenuators at different levels, by the start and stop to upper level ammeter and under
Whether one-level, which can successfully copy, is seen ammeter data, to verify the presence of route relaying relation and its depth.
5. frequency hopping communications detects, carrier communication center frequency point is easily influenceed using frequency is fixed by power grid environment interference,
Therefore carrier communication center frequency point frequency is become two by some carrier wave manufacturers, even more than.In basic frequency by noise jamming
In the case of, sub-frequency point can be jumped into automatically, to avoid noise, improve communication success rate.Made an uproar by passband attenuation and band logical amplification
The technologies such as sound, it may be verified that the frequency hopping communications ability of carrier module.
6. the detection of routed path selection, to adapt to the complexity and time variation of power grid environment, carrier communication network is general
Design is with complicated routed path algorithm.To examine carrier communication routed path adaptability, by between original path
Apply interference and decay so that original path direction is unable to reach, and test carrier networking could pass through other routed path directions
Reach destination node.As shown in Fig. 2 original Between path, apply a certain amount of interference and decay so that nodeIt is right
NodePath is blocked and can not reached, and can detection communication pass through Or other paths and complete meter reading communication, and
The time required to investigating its path changeover.
Routing node changes detection scheme in existing carrier network, increases new ammeter node, and detecting newly-increased node can
It is no to be automatically added in existing carrier network communication, and the time that newly-increased node adds network is investigated, similarly, pass through the deletion of node
Routing iinformation interior joint information is examined to reject and its reject the time, the ability to transform in relative influence node-routing path.
Verification test process is averaged using repeatedly test, test result values.
The utility model is to establish a kind of low-voltage powerline carrier communication emulation detection analog network system, entirely to carry
Wave communication network is overall object, the application process of analogue simulation carrier communication meter reading, using result of practical application as foundation, is realized
To simulating detection and analysis in different model carrier module net, each module meter reading network is examined in different signal interferences and decay water
Actual meter reading effect in the case of flat, realized by each model carrier communication module property indices of lateral comparison to carrier module
Detection, so as to which the carrier communication module and its meter reading performance of realizing to different vendor are compared and effect judges, looked forward to for electric power
Industry is screened from the high-quality and efficient effective foundation of communication products offer during building automatic meter reading system.The utility model structure
It is novel in design unique.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model；
Fig. 2 is the detects schematic diagram of routed path selection.
Embodiment
Power line carrier module analoging detecting device, including three-phase distribution cabinet, a concentrator communication cabinet M1, seven structure phases
Carrier wave meter communication cabinet S1-S7 that is same and being arranged in order, master that is being communicated with concentrator communication cabinet and being provided with meter reading inspection software
Stand（Main website is not shown in Fig. 1）, for controlling the control computer of concentrator communication cabinet and each carrier wave meter communication cabinet, three-phase distribution
Cabinet provides main power supply for concentrator communication cabinet and each carrier wave meter communication cabinet, and 220V power supplys are that concentrator communication cabinet and each carrier wave meter lead to
Letter cabinet provides measurement and special equipment uses power supply.
Carrier wave meter communication cabinet includes delay switch, power isolation module, artificial mains network's module, No. five synthesizers, journey
Control attenuator, frequency spectrograph, the carrier wave dial framework of multi-epitope；Three-phase distribution cabinet connects delay switch, delay switch connection isolated from power
Module, power isolation module connection artificial mains network's module, artificial mains network's module connection multi-epitope carrier wave dial framework and
The first via of No. five synthesizers（No. five synthesizers are that well known to a person skilled in the art to distinguish five tunnels per function all the way
To facilitate description, the first via, the tunnel of the second tunnel ... ... the 5th are defined as by the order of description）, the second tunnel of No. five synthesizers
Connect programmable attenuator, the 3rd tunnel of No. five synthesizers（Netting twine）Frequency spectrograph is connected, the 4th tunnel connection of No. five synthesizers is adjacent
Next carrier wave meter communication cabinet in programmable attenuator.
Concentrator communication cabinet includes delay switch, power isolation module, artificial mains network's module, No. three synthesizers, made an uproar
Sound source module, frequency spectrograph, concentrator frame；Three-phase distribution cabinet connects delay switch, delay switch connection power isolation module, power supply
Isolation module connects artificial mains network's module, the first via of artificial mains network's module connection concentrator Jia Ji No. tri- synthesizers
（Defining for each road of No. three synthesizers is identical with foregoing No. five synthesizers）, the second tunnel of No. three synthesizers connects first load
The programmable attenuator of wave table communication cabinet, the 3rd tunnel of No. three synthesizers（Netting twine）Frequency spectrograph is connected, noise source model connects respectively
5th tunnel of No. five synthesizers of each carrier wave meter communication cabinet.
Control computer is connected by RS485 buses with the programmable attenuator of each carrier wave meter communication cabinet, and control computer is led to
The noise source model and frequency spectrograph for crossing netting twine and concentrator communication cabinet are connected, control computer by netting twine respectively with each carrier wave meter
The frequency spectrograph connection of communication cabinet.
The noise source model of concentrator communication cabinet is made up of white noise generator, adjustable attenuator and multiple-path coupler.Its
Middle white noise generator is made up of white noise of the narrowband generator and broadband white noise generator, and white noise of the narrowband generator can produce
Raw 20Hz ~ 100kHz white noises, broadband white noise generator can produce 100kHz ~ 30MHz white noise, cover it is current I
National expenditures communications band used by low pressure meter reading carrier chip manufacturer, effective interference can be produced to target detection signal.
The carrier wave dial framework of multi-epitope is the carrier wave dial framework of 72 epitopes.
Each composition module or device of concentrator communication cabinet and carrier wave meter communication cabinet are all known existing products or existing
Technology.Thirdly road synthesizer and No. five synthesizers are the commercially available prod of Beijing Zhinan Technology Co., Ltd.'s production.
Claims (3)
1. a kind of power line carrier module analoging detecting device, it is characterised in that including three-phase distribution cabinet, a concentrator communication cabinet
（M1）, seven structures are identical and the carrier wave meter communication cabinet that is arranged in order（S1-S7）, it is being communicated with concentrator communication cabinet and be provided with
The main website of meter reading inspection software, for controlling the control computer of concentrator communication cabinet and each carrier wave meter communication cabinet, three-phase distribution
Cabinet provides main power supply for concentrator communication cabinet and each carrier wave meter communication cabinet, and 220V power supplys are that concentrator communication cabinet and each carrier wave meter lead to
Letter cabinet provides measurement and special equipment uses power supply；
Carrier wave meter communication cabinet includes delay switch, power isolation module, artificial mains network's module, No. five synthesizers, program control declined
Subtract the carrier wave dial framework of device, frequency spectrograph, multi-epitope；Three-phase distribution cabinet connects delay switch, and delay switch connects power isolation module,
Power isolation module connects artificial mains network's module, and the carrier wave dial framework of artificial mains network's module connection multi-epitope and five tunnels are closed
The first via grown up to be a useful person, the second tunnel connection programmable attenuator of No. five synthesizers, the 3rd tunnel connection frequency spectrograph of No. five synthesizers, five
4th tunnel of road synthesizer connects the programmable attenuator in adjacent next carrier wave meter communication cabinet；
Concentrator communication cabinet includes delay switch, power isolation module, artificial mains network's module, No. three synthesizers, noise source
Module, frequency spectrograph, concentrator frame；Three-phase distribution cabinet connects delay switch, delay switch connection power isolation module, isolated from power
Module connection artificial mains network's module, the first via of artificial mains network's module connection concentrator Jia Ji No. tri- synthesizers, three
Second tunnel of road synthesizer connects the programmable attenuator of first carrier wave meter communication cabinet, the 3rd tunnel connection frequency spectrum of No. three synthesizers
Instrument, noise source model connect the 5th tunnel of No. five synthesizers of each carrier wave meter communication cabinet respectively；
Control computer is connected by RS485 buses with the programmable attenuator of each carrier wave meter communication cabinet, and control computer passes through net
Line is connected with the noise source model and frequency spectrograph of concentrator communication cabinet, and control computer is communicated with each carrier wave meter respectively by netting twine
The frequency spectrograph connection of cabinet；
The carrier wave dial framework of multi-epitope is the carrier wave dial framework of 72 epitopes.
2. power line carrier module analoging detecting device according to claim 1, it is characterised in that concentrator communication cabinet is made an uproar
Sound source module is made up of white noise generator, adjustable attenuator and multiple-path coupler.
3. power line carrier module analoging detecting device according to claim 2, it is characterised in that white noise generator is by narrow
Band white noise generator and broadband white noise generator are formed, and white noise of the narrowband generator is to produce 20Hz ~ 100kHz white noises
Sound, broadband white noise generator produce 100kHz ~ 30MHz white noise.
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| CN201721025563.1U CN207022002U (en) | 2017-08-16 | 2017-08-16 | Power line carrier module analoging detecting device |
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| CN201721025563.1U CN207022002U (en) | 2017-08-16 | 2017-08-16 | Power line carrier module analoging detecting device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107294562A (en) * | 2017-08-16 | 2017-10-24 | 国家电网公司 | Low-voltage power carrier module simulation detection means |
| CN109547064A (en) * | 2018-10-30 | 2019-03-29 | 国网北京市电力公司 | Platform area identifying system |
| CN111800166A (en) * | 2020-06-09 | 2020-10-20 | 深圳供电局有限公司 | HPLC interconnection and intercommunication testing device and testing method |
-
2017
- 2017-08-16 CN CN201721025563.1U patent/CN207022002U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107294562A (en) * | 2017-08-16 | 2017-10-24 | 国家电网公司 | Low-voltage power carrier module simulation detection means |
| CN107294562B (en) * | 2017-08-16 | 2020-11-10 | 国家电网公司 | Low-voltage power carrier module simulation detection device |
| CN109547064A (en) * | 2018-10-30 | 2019-03-29 | 国网北京市电力公司 | Platform area identifying system |
| CN109547064B (en) * | 2018-10-30 | 2021-12-10 | 国网北京市电力公司 | Platform district identification system |
| CN111800166A (en) * | 2020-06-09 | 2020-10-20 | 深圳供电局有限公司 | HPLC interconnection and intercommunication testing device and testing method |
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