CN105405281A - Detection method for carrier communication failures of smart electric meter - Google Patents
Detection method for carrier communication failures of smart electric meter Download PDFInfo
- Publication number
- CN105405281A CN105405281A CN201510829729.4A CN201510829729A CN105405281A CN 105405281 A CN105405281 A CN 105405281A CN 201510829729 A CN201510829729 A CN 201510829729A CN 105405281 A CN105405281 A CN 105405281A
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- China
- Prior art keywords
- palm
- meter
- control device
- handheld computer
- signal intensity
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Classifications
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- G—PHYSICS
- G08—SIGNALLING
- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C19/00—Electric signal transmission systems
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/08—Locating faults in cables, transmission lines, or networks
- G01R31/081—Locating faults in cables, transmission lines, or networks according to type of conductors
- G01R31/086—Locating faults in cables, transmission lines, or networks according to type of conductors in power transmission or distribution networks, i.e. with interconnected conductors
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/50—Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
- G01R31/58—Testing of lines, cables or conductors
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Remote Monitoring And Control Of Power-Distribution Networks (AREA)
Abstract
The invention discloses a detection method for carrier communication failures of a smart electric meter. Time and labor are saved, the working efficiency is high, the testing process is simple, and the detection time is greatly shortened. After a handheld computer and a reading controller are connected on the spot, the meter number of the corresponding meter is input into the handheld computer, the handheld computer sends an instruction to the reading controller, the reading controller receives the reading control instruction of the handheld computer, filter wave is output through a frequency-selecting amplification circuit and an autotransformer after being modulated by an MCU, and a carrier signal is output to the smart meter through a low-voltage power line; the smart meter returns the answered carrier signal to input the filter wave through the autotransformer and a band-pass filter, the filter wave returns to the handheld computer through a demodulator, the MCU and an RS 232 conversion serial port, the handheld computer displays the meter number and returns the signal intensity, and if the returned signal intensity is 12 V-15 V, communication succeeds and the smart meter is normal; if the returned signal intensity is lower than 12 V, an amplifier is additionally arranged between an outgoing terminal of the smart meter and the power line, and then the handheld computer performs detection; when a frame header is not received, the smart meter have failures.
Description
Technical field
The present invention relates to a kind of electric intelligent table carrier communication fault detection method.
Background technology
In electric power enterprise intelligent grid is built, the measuring apparatus as relating to huge numbers of families: intelligent meter has taken the lead in popularizing.But in real work, intelligent meter distant place control rate is about 97%, does not reach 99% of state's network planning provisioning request.Whether normal transmission is as follows to our unit's determining step for electric intelligent table carrier signal:
1, whether normally identity network is detected.This machine testing of our unit.
2, whether normally our unit's network speed is tested.Whether other computing machine of our unit is normal.
3, whether normally corporate server is economized.Company of contact province.
4, check that whether province's company procedure is normal.Contact economizes company procedure person
5, whether normally commmunication company's wireless messages is contacted.
6, whether platform district concentrator is normal.See that whether other user communication of this TV station district is normal.(each district's amount is at 50-300 family)
7, whether intelligent meter is normal, following three kinds of the out of contior reason of intelligent meter: 1), ammeter do not power up; 2), electric meter address and actual address are not inconsistent; 3), the fault of intelligent meter own or carrier module fault.
First and second reasons find very well, as long as interior lines personnel just can find to intelligent meter epi-position execute-in-place intelligent meter, but the 3rd fault is difficult to judge as layman.
Be exactly the 3rd fault after the first two failture evacuation, when finding the 3rd class fault, electrician is met as electric power enterprise basic unit dress table, can only adopt and change table or renew module, no matter change module or change intelligent meter, standardized internal formality under intelligent grid management is very loaded down with trivial details, and brings the impact that has a power failure to client.Tear back electric energy meter open or module brings back controlling unit of company of city, whether normally carry out verifying.
The shortcoming of this detection mode is:
1, tear back electric energy meter open to detect, bring power failure to client, affect client and power.
2, higher level's supervision time is delivered to long.Lose time, inefficiency.
3, owing to being now all standardized management, national electric power enterprise is all carry out a set of management system, and tearing table open, to detect formality very loaded down with trivial details, approximately needs 5-8 working day.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of time saving and energy saving, and work efficiency is high, and test process is simple, can detect at the scene, greatly shorten the electric intelligent table carrier communication fault detection method of supervision time.
The present invention is achieved in that
1, first communication carriers rate parameter is set on palm PC; At the scene by palm PC with copy control device be connected after, control device two power leads one will be copied and be connected to live wire, another root is connected to zero line, after copying control device connection 220V power supply, the table number of the corresponding table of input on palm PC, palm PC is utilized to send instruction to copying control device by the serial ports that USB and RS232 changes, when palm PC sends instruction, copy control device lamp and continue flicker, that copies control device reception palm PC copies control instruction, output filtering, selective frequency amplifier circuit, autotransformer after MCU modulation, through low-voltage power line outgoing carrier signal to intelligent meter;
2, the intelligent meter carrier signal that returns response realizes input filter through autotransformer, bandpass filter, detuner, MCU, RS232 change serial ports, palm PC is returned through USB conversion line, number and return signal intensity is looked by palm PC indicator gauge, electric quantity data selects current forward, if return signal intensity shows communication success when being 12V-15V, then intelligent meter is normal; Then between intelligent meter leading-out terminal and line of electric force, set up amplifier when return signal intensity is less than 12V, then detected by palm PC, if return signal intensity reaches more than 12V, then this intelligent meter can normally use, if still do not reach 12V, changes;
3, when display receives less than frame head, be shown to be the temporary derangement temporarily affected by signal disturbing or miscellaneous equipment communication factor, inspection palm PC-data line-copy control device-line of electric force to connect, repeats above operation, if still display " can not receive frame head " shows that intelligent meter exists fault.
The invention has the beneficial effects as follows: easy to carry, time saving and energy saving, work efficiency is high, and test process is simple, avoids having a power failure the inconvenience brought to client because the mounting or dismounting of right electric energy meter check.Electric power enterprise intelligent meter controls to be to be combined Remote, remote measurement, remote signalling with wireless telecommunications by power line carrier, Site Detection carrier signal, as long as whether Site Detection power line carrier signal is normal just passable, before detection set device, whether electric intelligent table sends carrier signal, control device is copied in utilization, palm PC co-occurrence field line directly connects, just can detect whether intelligent meter sends carrier signal, whether correct by palm PC programming display data.After using this method, on-the-spotly can accurately judge that whether intelligent meter carrier communication is normal, and improve the work efficiency of interior lines personnel, save manpower and materials.Can judge that whether carrier signal is in 12-15V scope according to afterbody signal intensity and destination node intensity simultaneously.Simultaneously can whether accurate at scene if checking the various information parameter of electric energy meter.
Accompanying drawing explanation
Fig. 1 copies control device fundamental diagram:
Fig. 2 is on-the-spot direct-detection intelligent meter carrier signal schematic diagram of the present invention;
Palm PC display information schematic diagram when Fig. 3 is intelligent meter non-fault;
Fig. 4 is intelligent meter palm PC display information schematic diagram when having a fault.
Embodiment
As shown in the figure, concrete steps of the present invention are as follows:
1, on palm PC, first arranging communication carriers rate parameter is 50BPS; At the scene by palm PC with copy control device be connected after, control device two power leads one will be copied and be connected to live wire, another root is connected to zero line, after copying control device connection 220V power supply, the table number of the corresponding table of input on palm PC, palm PC is utilized to send instruction to copying control device by the serial ports that USB and RS232 changes, when palm PC sends instruction, copy control device lamp and continue flicker, that copies control device reception palm PC copies control instruction, output filtering, selective frequency amplifier circuit, autotransformer after MCU modulation, through low-voltage power line outgoing carrier signal to intelligent meter;
2, the intelligent meter carrier signal that returns response realizes input filter through autotransformer, bandpass filter, MC3361BPL detuner, MCU, RS232 change serial ports, palm PC is returned through USB conversion line, number and return signal intensity is looked by palm PC indicator gauge, electric quantity data selects current forward, if return signal intensity shows communication success when being 12V-15V, then intelligent meter is normal, and the present embodiment is shown as 15V; Then between intelligent meter leading-out terminal and line of electric force, set up amplifier when return signal intensity is less than 12V, then detected by palm PC, if return signal intensity reaches more than 12V, then this intelligent meter can normally use, if still do not reach 12V, changes;
3, when display receives less than frame head, be shown to be the temporary derangement temporarily affected by signal disturbing or miscellaneous equipment communication factor, inspection palm PC-data line-copy control device-line of electric force to connect, repeats above operation, if still display " can not receive frame head " shows that intelligent meter exists fault.
These are only specific embodiments of the invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (1)
1. an electric intelligent table carrier communication fault detection method, is characterized in that:
1) first communication carriers rate parameter is set on palm PC; At the scene by palm PC with copy control device be connected after, control device two power leads one will be copied and be connected to live wire, another root is connected to zero line, after copying control device connection 220V power supply, the table number of the corresponding table of input on palm PC, palm PC is utilized to send instruction to copying control device by the serial ports that USB and RS232 changes, when palm PC sends instruction, copy control device lamp and continue flicker, that copies control device reception palm PC copies control instruction, output filtering, selective frequency amplifier circuit, autotransformer after MCU modulation, through low-voltage power line outgoing carrier signal to intelligent meter;
2) the intelligent meter carrier signal that returns response realizes input filter through autotransformer, bandpass filter, detuner, MCU, RS232 change serial ports, palm PC is returned through USB conversion line, number and return signal intensity is looked by palm PC indicator gauge, electric quantity data selects current forward, if return signal intensity shows communication success when being 12V-15V, then intelligent meter is normal; Then between intelligent meter leading-out terminal and line of electric force, set up amplifier when return signal intensity is less than 12V, then detected by palm PC, if return signal intensity reaches more than 12V, then this intelligent meter can normally use, if still do not reach 12V, changes;
3) when display receives less than frame head, be shown to be the temporary derangement temporarily affected by signal disturbing or miscellaneous equipment communication factor, inspection palm PC-data line-copy control device-line of electric force to connect, repeats above operation, if still display " can not receive frame head " shows that intelligent meter exists fault.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510829729.4A CN105405281A (en) | 2015-11-25 | 2015-11-25 | Detection method for carrier communication failures of smart electric meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510829729.4A CN105405281A (en) | 2015-11-25 | 2015-11-25 | Detection method for carrier communication failures of smart electric meter |
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| Publication Number | Publication Date |
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| CN105405281A true CN105405281A (en) | 2016-03-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510829729.4A Pending CN105405281A (en) | 2015-11-25 | 2015-11-25 | Detection method for carrier communication failures of smart electric meter |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107170225A (en) * | 2017-04-19 | 2017-09-15 | 新开普电子股份有限公司 | Carrier wave integrates copy controller |
| CN107390050A (en) * | 2017-06-28 | 2017-11-24 | 北京电子科技学院 | Power line carrier signal detects warning system and method |
| CN107688163A (en) * | 2017-08-25 | 2018-02-13 | 国网湖南省电力公司 | A kind of performance detection analytical equipment of user power utilization information acquisition system |
| CN112652158A (en) * | 2020-12-10 | 2021-04-13 | 国网北京市电力公司 | Power data communication link |
| CN115189717A (en) * | 2022-06-28 | 2022-10-14 | 海南电网有限责任公司 | Power line carrier communication problem diagnosis method |
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Cited By (5)
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|---|---|---|---|---|
| CN107170225A (en) * | 2017-04-19 | 2017-09-15 | 新开普电子股份有限公司 | Carrier wave integrates copy controller |
| CN107390050A (en) * | 2017-06-28 | 2017-11-24 | 北京电子科技学院 | Power line carrier signal detects warning system and method |
| CN107688163A (en) * | 2017-08-25 | 2018-02-13 | 国网湖南省电力公司 | A kind of performance detection analytical equipment of user power utilization information acquisition system |
| CN112652158A (en) * | 2020-12-10 | 2021-04-13 | 国网北京市电力公司 | Power data communication link |
| CN115189717A (en) * | 2022-06-28 | 2022-10-14 | 海南电网有限责任公司 | Power line carrier communication problem diagnosis method |
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Application publication date: 20160316 |
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