CN201919002U - Carrier communication test instrument - Google Patents
Carrier communication test instrument Download PDFInfo
- Publication number
- CN201919002U CN201919002U CN201120028200XU CN201120028200U CN201919002U CN 201919002 U CN201919002 U CN 201919002U CN 201120028200X U CN201120028200X U CN 201120028200XU CN 201120028200 U CN201120028200 U CN 201120028200U CN 201919002 U CN201919002 U CN 201919002U
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- CN
- China
- Prior art keywords
- carrier
- unit
- carrier communication
- input
- carrier signal
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Abstract
The utility model discloses a carrier communication test instrument, which comprises a micro control unit, a carrier signal coupling unit, a carrier signal driving and interface unit, an input unit and a display unit. The output of the input unit is connected with the input of the micro control unit, the micro control unit and the carrier signal driving and interface unit are in two-way transmission through the carrier signal coupling unit, the input of the display unit is connected with the output of the micro control unit, and the carrier signal driving and interface unit is connected with the carrier communication interface of a to-be-tested carrier electric energy meter or a collector to perform carrier communication. The carrier communication test instrument can verify and detect the carrier communication function of the carrier electric energy meters and the collectors under various conditions at a laboratory or a site, can satisfy on-site debugging requirements on the carrier communication function of the electric energy meters and various collectors, and has the characteristics of simplicity in operation and easiness in carrying.
Description
Technical field
The utility model relates to a kind of power test instrument, specifically refer to a kind of instrument that can carry out the carrier communication functional test to various carrier communication ammeters and collector, can carry out testing authentication in the laboratory, also can carry out system debug, belong to the low-voltage powerline carrier communication technical field of measurement and test the carrier electric energy meter communication function at scene.
Background technology
Along with scientific and technological progress, State Grid Corporation of China has puted forth effort to carry out intelligent electric energy construction, and power consumer power information acquisition system is the foothold of intelligent grid.Traditional power information collection is by manually finishing, and the person of checking meter is checked meter from house to house to the doorstep, and inefficiency because workload is huge, even also may be made a fault.One big function of power consumer power information acquisition system is exactly the information that can collect each electric energy meter of terminal in main website, has avoided the manpower collection.
In power consumer power information acquisition system process of construction, used voltage power-line carrier communication technology, low-voltage powerline carrier communication has become the main communication mode that State Grid Corporation of China builds the power information acquisition system, this technology need not be transformed existing electrical network, only need special carrier communication chip be installed, can utilize ready-made power line to carry out carrier communication and finish the above-mentioned work of checking meter at concentrator and each electric power meter end.Existing ammeter has the branch of carrier power meter and RS-485 interface ammeter, for carrier power meter, above-mentioned carrier communication chip directly is installed in the carrier power meter, and for RS-485 interface ammeter, need carry out carrier communication by collector and concentrator, corresponding carrier communication chip then is installed in the collector.
No matter be carrier power meter or collector, all need (this test and checking had both comprised breadboardly, also comprised in the field adjustable process) tested and verified to the carrier communication function.Otherwise when carrier communication can not normally be carried out, just can't the decision problem place, because both might being ammeter or collector, this broke down, also might be the problem on the circuit.Particularly ammeter brings out existing problem, and grid company is headache very, because this often causes obtaining actual power information.And the problem of ammeter end just exists before to be equipment dispatch from the factory, and still occurs in the use, often is difficult to resolution.
Based on the situation that may occur in the above-mentioned reality, therefore press for a kind of carrier communication functional test instrument, this tester should both can be used for on-the-spot to carrier power meter or collector testing authentication, also can be used for the laboratory detection that these equipment dispatch from the factory preceding.Though power consumer power information acquisition system has the carrier communication function, but system configuration is huge, can't be used for the scene at all, make the communication function of carrier electric energy meter and collector also lack the field adjustable instrument, and then cause the debugging of system and laboratory tests work complexity and effect undesirable.
The utility model content
At the prior art above shortcomings, the purpose of this utility model provides a kind of carrier communication tester that is used for the power information acquisition system, this tester volume is small and exquisite, be easy to carry, this equipment of utilization can be realized the carrier communication testing authentication to carrier electric energy meter, collector of on-the-spot and laboratory, and simple to operate.
The technical solution of the utility model is achieved in that the carrier communication tester, it comprises micro-control unit, the carrier signal coupling unit, carrier signal drives and interface unit, input unit and display unit, the output of input unit connects the input of micro-control unit, micro-control unit drives with carrier signal by the carrier signal coupling unit and interface unit is connected the realization transmitted in both directions, the display unit input is connected with micro-control unit output, and carrier signal drives and interface unit is used for being connected to carry out carrier communication with the carrier communication interface of carrier electric energy meter to be tested or collector.
Compared to existing technology, the utlity model has following advantage: can realize laboratory and on-the-spot carrier communication functional verification and detection to carrier electric energy meter and collector under the various states, satisfied on-the-spot debugging requirement, had characteristics such as simple to operate, portable electric energy meter and various collector carrier communication functions.
Description of drawings
Fig. 1-the utility model circuit block diagram.
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing.
Referring to Fig. 1, from the figure as can be seen, the utility model carrier communication tester, it comprises micro-control unit, carrier signal coupling unit, carrier signal driving and interface unit, input unit and display unit, the output of input unit connects the input of micro-control unit, micro-control unit drives with carrier signal by the carrier signal coupling unit and interface unit is connected the realization transmitted in both directions, and the display unit input is connected with micro-control unit output.
Micro-control unit embodiment selects Single-chip Controlling for use, is the control core of this tester, controls the input and output and the program running of whole tester signal; Utilize input unit to finish the selection and the control command of Single Chip Microcomputer (SCM) program are imported, comprise the mailing address of input equipment etc.Micro-control unit itself does not manage the device address of input, only utilizes this mailing address to communicate frame and makes up, and finishes communication process, so the interior mailing address information without any equipment of microprocessor.
Because carrier signal is low-voltage signal, its emission maximum level is about about 1V, can transmit on power line for making it, must be by a Coupling device, the be added to forceful electric power of 220V of weak signal is got on.The utility model carrier signal coupling unit promptly plays this effect.
Carrier signal drives and interface unit is used for being connected to carry out carrier communication with the carrier communication interface of carrier electric energy meter to be tested or collector.Carrier signal drives and interface unit is meant a series of circuit that comprise the carrier communication chip, and other also comprise carrier power source circuit, filter apparatus etc.Carrier signal drives and interface unit can adopt product that existed on the market, moulding.
Which device data input unit with the form of the keyboard input required mailing address etc. of checking meter, promptly clearly needs to copy as requested.
Display unit is that input unit and display unit are the interfaces of man-machine interaction to the demonstration of input unit with to the output of program execution result.
Before the test, the interface on carrier signal driving and the interface unit need be connected with the carrier communication interface of carrier electric energy meter or collector.Test philosophy is:
Ammeter carrier communication functional test: behind the input unit input communication address, the DL/T 645 communication protocol frames that utilize programming to realize, by the carrier signal coupling unit, utilize line carrier communication interface that the data item of ammeter is carried out copy reading, judge by judging the copy reading success or not whether ammeter carrier communication function is normal.
Collector carrier communication functional test: after collector is received ammeter by RS-485, behind the input unit input ammeter mailing address, the DL/T 645 communication protocol frames that utilize programming to realize, by the carrier signal coupling unit, utilize line carrier communication interface and collector to carry out carrier communication, collector communicates by RS-485 interface and ammeter then, data item to ammeter is carried out copy reading, judges by judging the copy reading success or not whether the carrier communication function of collector and RS-485 communication function be normal.
Claims (1)
1. carrier communication tester, it is characterized in that: it comprises micro-control unit, carrier signal coupling unit, carrier signal driving and interface unit, input unit and display unit, the output of input unit connects the input of micro-control unit, micro-control unit drives with carrier signal by the carrier signal coupling unit and interface unit is connected the realization transmitted in both directions, the display unit input is connected with micro-control unit output, and carrier signal drives and interface unit is used for being connected to carry out carrier communication with the carrier communication interface of carrier electric energy meter to be tested or collector.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120028200XU CN201919002U (en) | 2011-01-27 | 2011-01-27 | Carrier communication test instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120028200XU CN201919002U (en) | 2011-01-27 | 2011-01-27 | Carrier communication test instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201919002U true CN201919002U (en) | 2011-08-03 |
Family
ID=44418790
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120028200XU Expired - Fee Related CN201919002U (en) | 2011-01-27 | 2011-01-27 | Carrier communication test instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201919002U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102075273A (en) * | 2011-01-27 | 2011-05-25 | 重庆吉檀电子科技有限责任公司 | Carrier communication test instrument |
| CN102637352A (en) * | 2012-02-23 | 2012-08-15 | 国网信息通信有限公司 | Remote meter reading method and system, primary electric energy meter and secondary electric energy meter |
| WO2013040726A1 (en) * | 2011-09-25 | 2013-03-28 | 安徽省电力公司宣城供电公司 | On-site tester for electricity usage information collection system and testing method thereof |
-
2011
- 2011-01-27 CN CN201120028200XU patent/CN201919002U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102075273A (en) * | 2011-01-27 | 2011-05-25 | 重庆吉檀电子科技有限责任公司 | Carrier communication test instrument |
| WO2013040726A1 (en) * | 2011-09-25 | 2013-03-28 | 安徽省电力公司宣城供电公司 | On-site tester for electricity usage information collection system and testing method thereof |
| CN102637352A (en) * | 2012-02-23 | 2012-08-15 | 国网信息通信有限公司 | Remote meter reading method and system, primary electric energy meter and secondary electric energy meter |
| CN102637352B (en) * | 2012-02-23 | 2014-07-30 | 国网信息通信有限公司 | Remote meter reading method and system, primary electric energy meter and secondary electric energy meter |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110803 Termination date: 20180127 |