CN107800464A - A kind of noise jamming automated detection system for concentrator bandwidth carrier module - Google Patents
A kind of noise jamming automated detection system for concentrator bandwidth carrier module Download PDFInfo
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- CN107800464A CN107800464A CN201711006177.2A CN201711006177A CN107800464A CN 107800464 A CN107800464 A CN 107800464A CN 201711006177 A CN201711006177 A CN 201711006177A CN 107800464 A CN107800464 A CN 107800464A
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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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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
- H04B17/30—Monitoring; Testing of propagation channels
- H04B17/309—Measuring or estimating channel quality parameters
- H04B17/345—Interference values
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- Measurement Of Resistance Or Impedance (AREA)
Abstract
The present invention relates to a kind of noise jamming automated detection method and system for concentrator bandwidth carrier module, including detection station module, test branch road, interchanger, industrial computer and power supply, four concentrator carrier modules to be detected are carried in detection station module simultaneously, detection station is connected to four test branch roads, four test branch roads are connected respectively to interchanger, and interchanger is connected to industrial computer by netting twine；Detection station module and four 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 four 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
It is especially a kind of for concentrator bandwidth carrier module the invention belongs in electrical measurement, Electric Energy Metering Technology field
Noise jamming automated detection method and system.
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 concentrator bandwidth carrier module
Noise jamming automated detection system and system, realize the automatic intelligent streamline of module automatic boxing, greatly improve load
Ripple module efficiency of loading.
The present invention solves its technical problem and takes following technical scheme to realize：
A kind of noise jamming automated detection method for concentrator bandwidth carrier module, it is characterised in that：Tested
Journey 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 concentrator bandwidth carrier module；
The carrier communication frequency range of concentrator 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.
Moreover, the concrete structure of the concentrator carrier module is：Module bodies are rectangular cubic structure, in module master
The front upper of body is provided with two LED warning lights, and two LEDs are respectively to receive lamp and send lamp, in module bodies
Upper rear portion is provided with a pin, and a cable interface is provided with module top；In the positive Middle face horizontal one of module bodies
Stopper slot is formed with the middle part of incline, the positive bottom of module bodies is formed with the spacing fin of lateral direction penetrating.
A kind of noise jamming automated detection system for concentrator bandwidth carrier module, it is characterised in that：Including inspection
Survey station module, test branch road, interchanger, industrial computer and power supply, carrying four simultaneously is to be detected in detection station module
Concentrator carrier module, detection station are connected to four test branch roads, and four test branch roads are connected by netting twine respectively
To industrial computer；Detection station module and four test branch roads connect general supply and are powered respectively, each to test branch road difference
It is provided with independent Switching Power Supply.
Moreover, the test branch road leads to including three-phase isolator, three-phase attenuator, relay queue, three ammeters, 232
Interrogate platelet, ethernet communication platelet, pin state-detection platelet, Control platelet, light current voltage detecting platelet and weak
Electric current detecting platelet, ethernet communication platelet connect industrial computer by netting twine, and the ethernet communication platelet connects two respectively
Control platelet,
One Control platelet is connected to three-phase attenuator, a port two three-phases of series connection of the three-phase attenuator
Isolator, three-phase isolator prevent each test system from influencing each other to isolate carrier signal；Another end of three-phase attenuator
Mouth connection relay queue, two pins of relay queue connect three ammeters；
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 concentrator
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.
The advantages and positive effects of the present invention are：
A modular test cell body is used as in whole Design of Test System of the invention, with four sets of surveys specially designed
Examination fixture system is main body, coordinates corresponding intelligent machine device, has very high integrated level and flexibility, greatly improves simultaneously
Module testing efficiency.
Brief description of the drawings
Fig. 1 is present system entire block diagram；
Fig. 2 is the concentrator carrier module test system schematic diagram of the present invention；
Fig. 3 is concentrator carrier module structural representation；
Fig. 4 is Fig. 3 left view；
Fig. 5 is Fig. 3 rearview；
Fig. 6 is Fig. 3 top 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 concentrator bandwidth carrier module, including detection station module,
Branch road, interchanger, industrial computer and power supply are tested, four concentrator carrier wave moulds to be detected are carried simultaneously in detection station module
Block, detection station are connected to four test branch roads, and four test branch roads are connected to industrial computer by netting twine respectively；
Detection station module and four 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 four test branch roads is identical, and each branch road of testing includes three-phase isolator, three-phase attenuator, relay team
Row, three ammeters, 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 industrial computer by netting twine, and the ethernet communication platelet connects two relay controls respectively
Platelet processed,
Wherein, a Control platelet is connected to three-phase attenuator, a port series connection two of the three-phase attenuator
Individual three-phase isolator, three-phase isolator prevent each test system from influencing each other to isolate carrier signal；Three-phase attenuator it is another
A port connects relay queue, and two pins of relay queue connect three ammeters；
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 concentrator
The state of carrier module.
Its test process is as follows：Host computer starts test, and by netting twine, to be connected to ethernet communication small for mode in a manner of TCP
Order conversion is distributed to Control platelet, light current voltage detecting platelet, light current by plate, Ethernet platelet from TC-BUS agreements
Current detecting platelet, 232 communication platelets, each platelet performs the order for belonging to this platelet according to tooling communication agreement, and replys
Whether position machine testing software, upper computer detection software pass through according to reply result judgement.
The concrete structure of concentrator carrier module, referring to shown in accompanying drawing 3 to 6, module bodies 1 are rectangular cubic structure,
The front upper of module bodies is provided with two LED warning lights 2, two LEDs are respectively to receive lamp and send lamp, its
In, lamp is received as green, sends lamp as red；One pin 5 is installed in the upper rear portion of module bodies, pacified on module top
Equipped with a cable interface 6；
Stopper slot 4 laterally is formed with the middle part of an incline in the positive Middle face of module bodies, the positive bottom of module bodies is formed with
The spacing fin 3 of lateral direction penetrating, for structure positioning.
Detection project content includes：Outward appearance test, testing protocol consistency, quiescent dissipation test, dynamic power consumption test, pass
Key pin level and state verification, short message test, long message test, the test of LED reiving/transmitting state.
1) outward appearance is tested, test mode：Whether meet specification with CCD high-definition camera photographic analysis module outward appearances.
2) testing protocol consistency, test mode：Control module issues DL/T645 messages, and replys DL/T645 to module
Message.
3) quiescent dissipation is tested, test mode：By to while sending (not actuated carrier wave) under tested module quiescent operation
Strong and weak electricity voltage and current carries out real-time sampling, and in summary sampling converses the quiescent dissipation of module.
4) dynamic power consumption is tested, test mode：By to strong (in carrier wave transmission process) under tested module dynamic duty
Light current voltage and current carries out real-time sampling, and in summary sampling converses the quiescent dissipation of module.
5) key pin and level state test, test mode：By the sampling functions of pin state detection unit and
The high low state of level of input and output control function detection module key pin and company's weldering situation with pin around.
6) short message is tested, test mode：Pass through the vendor code of copy controller read module.Returning result and test system
Interior is unanimously qualified；Otherwise to be unqualified.
7) long message is tested, test mode：Message of the data field length for 200 bytes is sent to module by copy controller.
The correct test result that returns is qualified；Otherwise to be unqualified.
8) LED reiving/transmitting state is tested, test mode：During module receives and dispatches long message, with CCD high-definition cameras
Catch the flicker state of indicator lamp.Lamp is received as green, it is red to send lamp, and the left and right order for receiving and dispatching lamp is correctly conjunction
Lattice；Otherwise to be unqualified.
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 concentrator bandwidth carrier module, it is characterised in that：Test process It 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 Concentrator bandwidth carrier module is tested；The carrier communication frequency range of concentrator 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.
- 2. the noise jamming automated detection system according to claim 1 for concentrator bandwidth carrier module, it is special Sign is：The concrete structure of the concentrator carrier module is：Module bodies are rectangular cubic structure, in module bodies just Face top is provided with two LED warning lights, and two LEDs are respectively to receive lamp and send lamp, on the back side of module bodies Portion is provided with a pin, and a cable interface is provided with module top；In the horizontal incline of positive Middle face of module bodies Portion is formed with stopper slot, and the positive bottom of module bodies is formed with the spacing fin of lateral direction penetrating.
- A kind of 3. noise jamming automated detection system for concentrator bandwidth carrier module, it is characterised in that：Including detection Station module, test branch road, interchanger, industrial computer and power supply, detection station module is interior to carry four collection to be detected simultaneously Middle device carrier module, detection station are connected to four test branch roads, and four test branch roads are connected to by netting twine respectively Industrial computer；Detection station module and four test branch roads connect general supply and are powered respectively, and each branch road of testing is set respectively It is equipped with independent Switching Power Supply.
- 4. the noise jamming automated detection system according to claim 1 for concentrator bandwidth carrier module, it is special Sign is：It is described test branch road include three-phase isolator, three-phase attenuator, relay queue, three ammeters, 232 communication platelets, Ethernet communication platelet, pin state-detection platelet, Control platelet, light current voltage detecting platelet and the inspection of light current electric current Platelet is surveyed, ethernet communication platelet connects industrial computer by netting twine, and the ethernet communication platelet connects two relay controls respectively Platelet processed,One Control platelet is connected to three-phase attenuator, and a port of the three-phase attenuator, which is connected two three, to be isolated Device, three-phase isolator prevent each test system from influencing each other to isolate carrier signal；Another port of three-phase attenuator connects Contact relay queue, two pins of relay queue connect three ammeters；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 concentrator carrier wave The state of module.
- 5. the noise jamming automated detection system according to claim 4 for concentrator bandwidth carrier module, it is special Sign is：The 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.
- 6. the noise jamming automated detection system according to claim 4 for concentrator bandwidth carrier module, it is special Sign is：The test branch road is also equipped with frock power supply platelet, frock power supply platelet connection general supply.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711006177.2A CN107800464A (en) | 2017-10-19 | 2017-10-19 | A kind of noise jamming automated detection system for concentrator bandwidth carrier module |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201711006177.2A CN107800464A (en) | 2017-10-19 | 2017-10-19 | A kind of noise jamming automated detection system for concentrator bandwidth carrier module |
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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 |
| 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 |
| CN205353342U (en) * | 2015-04-07 | 2016-06-29 | 国家电网公司 | Single -phase carrier wave smart electric meter communication module interface load bearing capability tester |
-
2017
- 2017-10-19 CN CN201711006177.2A patent/CN107800464A/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 |
| 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 |
| CN205353342U (en) * | 2015-04-07 | 2016-06-29 | 国家电网公司 | Single -phase carrier wave smart electric meter communication module interface load bearing capability tester |
| 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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Application publication date: 20180313 |