CN107872249A - A kind of noise jamming automated detection method and system for single-phase electric energy meter bandwidth carrier module - Google Patents
A kind of noise jamming automated detection method and system for single-phase electric energy meter bandwidth carrier module Download PDFInfo
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- CN107872249A CN107872249A CN201710974273.XA CN201710974273A CN107872249A CN 107872249 A CN107872249 A CN 107872249A CN 201710974273 A CN201710974273 A CN 201710974273A CN 107872249 A CN107872249 A CN 107872249A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B3/00—Line transmission systems
- H04B3/02—Details
- H04B3/46—Monitoring; Testing
- H04B3/487—Testing crosstalk effects
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B3/00—Line transmission systems
- H04B3/54—Systems for transmission via power distribution lines
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Abstract
The present invention relates to a kind of noise jamming automated detection method and system for single-phase electric energy meter bandwidth carrier module, system includes detection station module, test branch road, interchanger, industrial computer and power supply, six single-phase meter carrier modules to be detected are carried in detection station module simultaneously, detection station is connected to six test branch roads, six test branch roads are connected respectively to interchanger, and interchanger is connected to industrial computer by netting twine；Detection station module and six test branch roads connect general supply and are powered respectively, and each branch road of testing is respectively arranged with independent Switching Power Supply.A modular test cell body is used as in whole Design of Test System of the invention, based on the 6 sets of test fixture specially designed systems, coordinates corresponding intelligent machine device, there is very high integrated level and flexibility, while greatly improve module testing efficiency.
Description
Technical field
The invention belongs to be used for single-phase electric energy meter bandwidth carrier mould in electrical measurement, Electric Energy Metering Technology field, especially one kind
The noise jamming automated detection method and system of block.
Background technology
The characteristic of channel of low-voltage power line is considerably complicated, have changing load, noise jamming are strong, fading channel is big, letter
The features such as road is delayed, and these characteristics have considerable influence to the carrier communication success rate of intelligent electric meter.In power line carrier system
The problem of how preventing influence of the environment in the external world to test system from being one extremely important in test, Quantitative Study is commonly used
The reason for influence of resident's electrical equipment to low-voltage powerline carrier communication and rule.The success rate of carrier communication mainly takes
Certainly in the signal to noise ratio requirement and the receiving sensitivity of communication chip that receive carrier signal.Due to mains by harmonics coefficient regulation, electric energy
The limitation of table volume and cost, carrier signaling power can not possibly be excessive, while noise and its complexity on power network, so receiving
End carrier signal is often less than 1mV, and is flooded by substantial amounts of noise, leads to so meter reading success rate depends primarily on carrier wave
Believe the performance of chip.
Power line carrier, PLC is a kind of communication technology carried out data transmission using power line, i.e., by the use of existing power network as
The transmission medium of signal, power network is set to carry out data transmission while electric power is transmitted.At present, according to frequency range used not
Together, low-voltage powerline carrier communication is generally divided into narrow-band power line carrier communication (10kHz~500kHz) and broadband power line
The state difference in application effect contrast in carrier communication (2MHz~20MHz), arrowband and broadband, is generally concentrated at following a few sides
Face：(1) traffic rate, generally, transmission signal bandwidth is wider, and transmission rate is higher；(2) noise jamming, low frequency region；
(3) communication distance is distinguished, and at present, arrowband module carries out analog signal using FSK technologies, only has single signal to enter in synchronization
Row transmission；And Wideband module has multifrequency point signal in synchronization using OFDM technology and is transmitted.
The content of the invention
It is an object of the invention in place of overcome the deficiencies in the prior art, there is provided one kind is used for single-phase electric energy meter bandwidth carrier
The noise jamming automated detection method and system of module, a modular test cell is used as in whole Design of Test System
Body, based on the six sets of test fixture specially designed systems, coordinate corresponding intelligent machine device, there is very high integrated level
And flexibility.
The present invention solves its technical problem and takes following technical scheme to realize：
A kind of noise jamming automated detection method for single-phase electric energy meter bandwidth carrier module, it is characterised in that：Survey
Examination process is as follows：
(1) industrial computer starts test, and industrial computer is connected respectively to six in a manner of TCP by interchanger and surveys test branch road
Ethernet communication platelet；
(2) order conversion is distributed to Control platelet, light current voltage detecting by Ethernet platelet from TC-BUS agreements
Platelet, light current current detecting platelet and 232 communication platelets, each platelet perform the life for belonging to this platelet according to tooling communication agreement
Order, is tested single-phase electric energy meter bandwidth carrier module；
The carrier communication frequency range of single-phase electric energy meter bandwidth carrier module is 2MHz~20MHz；
(3) Control platelet, light current voltage detecting platelet, light current current detecting platelet and 232 communication platelets point
Command execution results industrial computer is not replied into by circuit, the upper computer detection software installed in industrial computer is sentenced according to result is replied
It is fixed whether to pass through test.
A kind of noise jamming automated detection system for single-phase electric energy meter bandwidth carrier module, it is characterised in that：Bag
Detection station module, test branch road, interchanger, industrial computer and power supply are included, carrying six simultaneously is to be checked in detection station module
The single-phase electric energy meter bandwidth carrier module of survey, detection station are connected to six test branch roads, six test branch road difference
Interchanger is connected to, interchanger is connected to industrial computer by netting twine；Detection station module and six test branch roads connect respectively
General supply is powered, and each branch road of testing is respectively arranged with independent Switching Power Supply.
Moreover, the test branch road includes isolator, attenuator, relay queue, the queue of carrier wave copy controller, 232 communications
Platelet, ethernet communication platelet, pin state-detection platelet, Control platelet, light current voltage detecting platelet and light current
Current detecting platelet, ethernet communication platelet by netting twine connect interchanger, the ethernet communication platelet connect respectively two after
Electrical equipment control platelet,
One Control platelet is connected to attenuator, a port two isolators of series connection of the attenuator, isolation
Device prevents each test system from influencing each other to isolate carrier signal；Another port connection relay queue of attenuator, after
Two pins connection carrier wave copy controller queue of electrical equipment queue, the carrier wave copy controller queue are small by the communication of data wire connection 232
Plate bi-directional data intercommunication；
Another Control platelet connects pin state-detection platelet, light current voltage detecting platelet and light current respectively
Current detecting platelet, pin state-detection platelet are connected to detection station module by signal wire, detect one of single-phase meter
The state of carrier module.
Moreover, it is described 232 communication platelet, ethernet communication platelet, pin state-detection platelet, frock power supply platelet, after
Electrical equipment control platelet, light current voltage detecting platelet and light current current detecting platelet are integrated on circuit boards.
Moreover, the test branch road is also equipped with frock power supply platelet, frock power supply platelet connection general supply.
Moreover, the concrete structure of the single-phase meter carrier module, module bodies are rectangular cubic structure, in module bodies
Front misaligned interval be provided with one big pin and a small pin, two are provided with the middle part of the back side of module bodies
LED warning lights, two LEDs are respectively to receive lamp and send lamp, in the middle part of the back side both lateral sides rib of module bodies respectively
It is formed with stopper slot.
The advantages and positive effects of the present invention are：
Present invention emphasis in single-phase electric energy meter bandwidth carrier module basic communication performance test is carried out to noise robustness
Test, is simulated emphatically to white noise, impulsive noise, single-frequency noise etc., proposes that low-voltage power line carries under pink noise environment
The communication capacity measuring technology of ripple module, establish live pink noise source database.Live Complex Noise disturbed condition is simulated, it is right
The carrier communication unit that each manufacturer provides strictly is detected, and effectively lifts the logical of power user power consumption information acquisition system
Believe success rate.
Brief description of the drawings
Fig. 1 is the single-phase meter carrier module method of testing schematic diagram of the present invention；
Fig. 2 is present system entire block diagram；
Fig. 3 is single-phase meter carrier module structural representation；
Fig. 4 is Fig. 3 rearview；
Fig. 5 is Fig. 4 left view.
Embodiment
Below in conjunction with the accompanying drawings and the invention will be further described by specific embodiment, and following examples are descriptive
, it is not limited, it is impossible to which protection scope of the present invention is limited with this.
A kind of noise jamming automated detection system for single-phase electric energy meter bandwidth carrier module, including detection station mould
Block, test branch road, interchanger, industrial computer and power supply, the interior carrying six simultaneously of detection station module single-phase meters to be detected carry
Ripple module, detection station are connected to six test branch roads, and six test branch roads are connected respectively to interchanger, and interchanger leads to
Cross netting twine and be connected to industrial computer；
Detection station module and six test branch roads connect power supply and are powered respectively, and the present embodiment uses 24V power supplys,
Provided with total power switch, and each test branch road is respectively arranged with independent Switching Power Supply.
The structure of six test branch roads is identical, and each branch road of testing includes isolator, attenuator, relay queue, carrier wave
Copy controller queue, 232 communication platelets, ethernet communication platelet, pin state-detection platelet, frock power supply platelet, relay control
Platelet, light current voltage detecting platelet and light current current detecting platelet processed,
Above-mentioned 232 communication platelet, ethernet communication platelet, pin state-detection platelet, frock power supply platelet, relay control
Platelet, light current voltage detecting platelet and light current current detecting platelet processed are integrated on circuit boards, wherein, frock power supply platelet connects
Power supply is connect, for providing electric energy to other platelets on circuit board；
Ethernet communication platelet connects interchanger by netting twine, and the ethernet communication platelet connects two relay controls respectively
Platelet processed,
Wherein, a Control platelet is connected to attenuator, a port two isolators of series connection of the attenuator,
Isolator prevents each test system from influencing each other to isolate carrier signal；Another port connection relay team of attenuator
Row, two pins connection carrier wave copy controller queue of relay queue, the carrier wave copy controller queue are logical by data wire connection 232
Interrogate platelet bi-directional data intercommunication；
Another Control platelet connects pin state-detection platelet, light current voltage detecting platelet and light current respectively
Current detecting platelet, pin state-detection platelet are connected to detection station module by signal wire, detect one of single-phase meter
The state of carrier module.
A kind of noise jamming automated detection method for single-phase electric energy meter bandwidth carrier module, its test process is such as
Under：
(1) industrial computer starts test, and industrial computer is connected respectively to each survey in a manner of TCP by interchanger and tests branch road
Ethernet communication platelet；
(2) order conversion is distributed to Control platelet, light current voltage detecting by Ethernet platelet from TC-BUS agreements
Platelet, light current current detecting platelet and 232 communication platelets, each platelet perform the life for belonging to this platelet according to tooling communication agreement
Order, is tested single-phase electric energy meter bandwidth carrier module；
(3) Control platelet, light current voltage detecting platelet, light current current detecting platelet and 232 communication platelets point
Command execution results industrial computer is not replied into by circuit, the upper computer detection software installed in industrial computer is sentenced according to result is replied
It is fixed whether to pass through test.
The concrete structure of single-phase meter carrier module, referring to shown in accompanying drawing 3 to 5, module bodies are rectangular cubic structure,
The front misaligned interval of module bodies is provided with one big pin 2 and a small pin 3, is set in the middle part of the back side of module bodies
Two LED warning lights 4 are equipped with, two LEDs are respectively to receive lamp and send lamp, wherein, lamp is received as green, and sending lamp is
It is red.
Stopper slot 5 is formed respectively with the middle part of the back side both lateral sides rib of module bodies, for structure positioning.
Although disclosing embodiments of the invention and accompanying drawing for the purpose of illustration, those skilled in the art can manage
Solution：Do not departing from the present invention and spirit and scope of the appended claims in, it is various replace, change and modifications all be it is possible,
Therefore, the scope of the present invention is not limited to embodiment and accompanying drawing disclosure of that.
Claims (6)
- A kind of 1. noise jamming automated detection method for single-phase electric energy meter bandwidth carrier module, it is characterised in that：Test Process is as follows：(1) industrial computer starts test, and industrial computer is connected respectively to six ether for surveying test branch road by interchanger in a manner of TCP Network Communication platelet；(2) Ethernet platelet order conversion from TC-BUS agreements be distributed to Control platelet, light current voltage detecting platelet, Light current current detecting platelet and 232 communication platelets, each platelet performs the order for belonging to this platelet according to tooling communication agreement, right Single-phase electric energy meter bandwidth carrier module is tested；The carrier communication frequency range of single-phase electric energy meter bandwidth carrier module is 2MHz~20MHz；(3) Control platelet, light current voltage detecting platelet, light current current detecting platelet and 232 communication platelets respectively will Command execution results reply industrial computer by circuit, and the upper computer detection software installed in industrial computer is according to result judgement is replied It is no to pass through test.
- A kind of 2. noise jamming automated detection system for single-phase electric energy meter bandwidth carrier module, it is characterised in that：Including Detection station module, test branch road, interchanger, industrial computer and power supply, the interior carrying six simultaneously of detection station module are to be detected Single-phase electric energy meter bandwidth carrier module, detection station is connected to six test branch roads, and six test branch roads connect respectively Interchanger is connected to, interchanger is connected to industrial computer by netting twine；Detection station module and six test branch roads connect always respectively Power supply is powered, and each branch road of testing is respectively arranged with independent Switching Power Supply.
- 3. the noise jamming automated detection system according to claim 1 for single-phase electric energy meter bandwidth carrier module, It is characterized in that：The test branch road is small including isolator, attenuator, relay queue, the queue of carrier wave copy controller, 232 communications Plate, ethernet communication platelet, pin state-detection platelet, Control platelet, light current voltage detecting platelet and light current electricity Stream detection platelet, ethernet communication platelet connect interchanger by netting twine, and the ethernet communication platelet connects two relays respectively Device controls platelet,One Control platelet is connected to attenuator, a port two isolators of series connection of the attenuator, and isolator is Isolation carrier signal, prevents each test system from influencing each other；Another port connection relay queue of attenuator, relay Two pins connection carrier wave copy controller queue of queue, the carrier wave copy controller queue are double by the communication platelet of data wire connection 232 To data interchange；Another Control platelet connects pin state-detection platelet, light current voltage detecting platelet and light current electric current respectively Platelet is detected, pin state-detection platelet is connected to detection station module by signal wire, detects one of single-phase meter carrier wave The state of module.
- 4. the noise jamming automated detection system according to claim 3 for single-phase electric energy meter bandwidth carrier module, It is characterized in that：The 232 communication platelet, ethernet communication platelet, pin state-detection platelet, frock power supply platelet, relay Device control platelet, light current voltage detecting platelet and light current current detecting platelet are integrated on circuit boards.
- 5. the noise jamming automated detection system according to claim 3 for single-phase electric energy meter bandwidth carrier module, It is characterized in that：The test branch road is also equipped with frock power supply platelet, frock power supply platelet connection general supply.
- 6. the noise jamming automated detection system according to claim 1 for single-phase electric energy meter bandwidth carrier module, It is characterized in that：The concrete structure of the single-phase meter carrier module, module bodies are rectangular cubic structure, in module bodies Front misaligned interval is provided with one big pin and a small pin, and two LED are provided with the middle part of the back side of module bodies Warning light, two LEDs are respectively to receive lamp and send lamp, are formed respectively with the middle part of the back side both lateral sides rib of module bodies Stopper slot.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710974273.XA CN107872249A (en) | 2017-10-19 | 2017-10-19 | A kind of noise jamming automated detection method and system for single-phase electric energy meter bandwidth carrier module |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710974273.XA CN107872249A (en) | 2017-10-19 | 2017-10-19 | A kind of noise jamming automated detection method and system for single-phase electric energy meter bandwidth carrier module |
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| Publication Number | Publication Date |
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| CN107872249A true CN107872249A (en) | 2018-04-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710974273.XA Pending CN107872249A (en) | 2017-10-19 | 2017-10-19 | A kind of noise jamming automated detection method and system for single-phase electric energy meter bandwidth carrier module |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114726404A (en) * | 2022-02-24 | 2022-07-08 | 江苏芯云电子科技有限公司 | Automatic detection system and method for broadband power line carrier communication module |
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| CN202340226U (en) * | 2011-06-30 | 2012-07-18 | 珠海中慧微电子有限公司 | Fully automatic test device for performance indexes of power line carrier communication |
| CN103777172A (en) * | 2013-12-27 | 2014-05-07 | 珠海中慧微电子有限公司 | Reliability testing system of intelligent electric meter and method thereof |
| CN204405827U (en) * | 2014-12-17 | 2015-06-17 | 哈尔滨汇鑫仪器仪表有限责任公司 | A kind of single-phase intelligent electric energy meter carrier module apparatus communication detection device |
| CN105551231A (en) * | 2015-12-30 | 2016-05-04 | 国网浙江省电力公司电力科学研究院 | Collector detection device |
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2017
- 2017-10-19 CN CN201710974273.XA patent/CN107872249A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202340226U (en) * | 2011-06-30 | 2012-07-18 | 珠海中慧微电子有限公司 | Fully automatic test device for performance indexes of power line carrier communication |
| CN103777172A (en) * | 2013-12-27 | 2014-05-07 | 珠海中慧微电子有限公司 | Reliability testing system of intelligent electric meter and method thereof |
| CN204405827U (en) * | 2014-12-17 | 2015-06-17 | 哈尔滨汇鑫仪器仪表有限责任公司 | A kind of single-phase intelligent electric energy meter carrier module apparatus communication detection device |
| CN105551231A (en) * | 2015-12-30 | 2016-05-04 | 国网浙江省电力公司电力科学研究院 | Collector detection device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114726404A (en) * | 2022-02-24 | 2022-07-08 | 江苏芯云电子科技有限公司 | Automatic detection system and method for broadband power line carrier communication module |
| CN114726404B (en) * | 2022-02-24 | 2024-01-19 | 江苏芯云电子科技有限公司 | Automatic detection system and method for broadband power line carrier communication module |
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Application publication date: 20180403 |