CN105488992A - Automatic meter searching method through low-voltage power line carrier wave - Google Patents
Automatic meter searching method through low-voltage power line carrier wave Download PDFInfo
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- CN105488992A CN105488992A CN201511024428.0A CN201511024428A CN105488992A CN 105488992 A CN105488992 A CN 105488992A CN 201511024428 A CN201511024428 A CN 201511024428A CN 105488992 A CN105488992 A CN 105488992A
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- G—PHYSICS
- G08—SIGNALLING
- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C19/00—Electric signal transmission systems
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- G—PHYSICS
- G08—SIGNALLING
- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C19/00—Electric signal transmission systems
- G08C19/16—Electric signal transmission systems in which transmission is by pulses
- G08C19/28—Electric signal transmission systems in which transmission is by pulses using pulse code
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Abstract
The invention relates to an automatic meter searching method through low-voltage power line carrier waves. The automatic meter searching method is characterized by comprising the following steps that firstly, a collector is initiated, so that meter searching information is reset; then, the collector receives an order of a concentrator and sends out a commend AAAAAAAAAAAA for conducting meter reading, and processing is conducted according to the following three receiving conditions. It is proved by trail that by means of the meter searching method, on the basis that no extra manual and electric cost is added, the problem of automatic meter searching is solved by rapidly recycling a meter searching algorithm, 96 electricity meters can be cascaded at most when a meter reading terminal is applied, the corresponding relationship between the meter reading terminal and the electricity meters does not need to be maintained manually, and efficiency and usability of meter searching are achieved.
Description
Technical field
The present invention relates to a kind of low voltage power line carrier automatic meter searching method.
Background technology
The meter reading terminal meter reading method generally used now mainly contains the meter reading methods such as 485 communications, infrared communication and low-voltage powerline carrier communication, these meter reading methods shorten the consuming time of manual metering widely, but be limited to kilowatt meter recorder and environment of checking meter, inefficiency.Using RS485 to check meter needs wiring in addition, checks meter apart from limited, and signal is easily by the interference of external electromagnetic field, not easily generally adopts; Carrier system is checked meter, although solve the restriction of distance of checking meter, real-time of checking meter is bad, and success ratio of checking meter does not reach requirement yet, often causes the situation such as unsuccessful of leakage copying, copy by mistake and check meter, and can not meet the demand of electricity consumption statistics.
Summary of the invention
The object of this invention is to provide a kind of low voltage power line carrier automatic meter searching method, can when not increasing extra artificial and electric cost, search table algorithm by Rapid Circulation and solve and automatically search table problem.
A kind of low voltage power line carrier automatic meter searching method, its special feature is, comprises the steps:
(1) first, initialization collector thus table information will be searched reset, then collector meets the concentrator order AAAAAAAAAAAA that sends instructions and checks meter, and processes respectively according to following three kinds of reception conditions:
1) the first situation: bus is confiscated any data, then illustrate and do not connect electric energy meter below this collector, directly terminates to search table process;
2) the second situation: bus receives a complete message, then illustrate and only connect one piece of electric energy meter below this collector, after the information of this electric energy meter is uploaded to concentrator by collector, directly terminate to search table process;
3) the third situation: concentrator detects bus collision, then illustrate and connect more than one piece of electric energy meter below this collector, needs to carry out search and confirm;
First search for first round wildcard, namely sequentially send instructions AAAAAAAAAA00 to AAAAAAAAAA99 successively, sends out 100 meter reading instruction altogether, after wherein each instruction sends, process respectively according to following three kinds of reception conditions:
A bus confiscates any data, then illustrates and do not connect electric energy meter below this address, order sends out bar instruction successively;
B bus receives a complete message, then illustrate and only connect one piece of electric energy meter below the group of addresses that this instruction is corresponding, collector sends out bar instruction after the information of this electric energy meter is uploaded concentrator;
C was screened by the first round, the ammeter information of minimum two of address can be determined, at this moment just look for toward upper level, from AAAAAAAA0012 ~ AAAAAAAA9912, the high two of address can be determined further by these 100 orders, if still have conflict on these high 2, at this moment just can look for toward upper level again, from AAAAAA002312 ~ AAAAAA992312, the 5th of address can be determined further by these 100 articles of orders, six, if this 5th, 6 two still there is conflict, at this moment just can look for toward upper level again, from AAAA00152312 ~ AAAA99152312, the 7th of address can be determined further by these 100 articles of orders, eight, if this 7th, 8 two still there is conflict, at this moment just can look for toward upper level again, from AA0006152312 ~ AA9906152312, the 9th of address can be determined further by these 100 articles of orders, 12, if this 9th, 12 still there is conflict, at this moment just can look for toward upper level again, from 001306152312 ~ 991306152312, the 11 of address can be determined further by these 100 articles of orders, 12, if bus replys the complete DLT645 data of a frame, then represent and this time send table number for hanging ammeter table number under this collector, like this by above-mentioned maximum 60,000 search, complete the search of ammeter table number, the table number record finally searched stores by last concentrator.
Through probationary certificate, table method of searching of the present invention is not when increasing manually extra and electric cost, search table algorithm by Rapid Circulation to solve and automatically search table problem, maximum during meter reading terminal application can cascade 96 pieces of ammeters, do not need the corresponding relation of manual maintenance meter reading terminal and ammeter, there is the high efficiency and ease for use of searching table.
Accompanying drawing explanation
Accompanying drawing 1 is hardware theory of constitution block diagram of the present invention;
Accompanying drawing 2 searches table process flow diagram automatically for of the present invention.
Embodiment
The principle of the inventive method is as follows:
1, the inventive method condenses based on electric energy meter and searches table principle, and the intelligence of autonomous Design invention is searched table algorithm and combined, and reaches and searches table requirement accurately and rapidly.
2, the inventive method is applied to power line carrier and automatically searches table technology, innovate and optimize algorithm, saves and checks meter the time, improves accuracy rate of checking meter.
The invention provides a kind of electric energy meter and search table method, comprising: enter after powering on and automatically search surface low journey, wherein, automatically search the setting that surface low journey is the abbreviated addressing asterisk wildcard adopting DL/T645-2007 agreement to specify; Acquisition terminal sends the order of checking meter with abbreviated addressing asterisk wildcard; Resolve the data that return, if can successfully resolve, then recording electrical meter number preserve electric meter address, if can not successfully resolve, then changes the search condition of abbreviated addressing asterisk wildcard.
Wherein hardware composition comprises low pressure narrowband carrier chip, the several electric energy meter of lower extension and has the collector of meter-reading function.Collector is sent by MCU and searches table order, completes the lower good task of pocket watch table of search through low pressure narrowband carrier chip.New search table algorithm owing to have employed, optimize to search the table time and improve and search telogenesis power.
Embodiment 1:
Automatic meter searching method of the present invention carries out the definition of asterisk wildcard communication based in DLT645-1997 and DLT645-2007 ammeter communication protocol, in the communications, if in stipulations information ammeter address in replace with asterisk wildcard AA, then ammeter is not compared to this address, the address of such as certain ammeter is 123456789012, if with AAAAAAAAAAAA, or 1234567890AA, or when 12345678AAAA etc. communicate, this ammeter all can return effective information, utilize this function of stipulations, collector just can be searched for all ammeters under this equipment.
First, initialization collector related data, resets as searched table information.Then send out AAAAAAAAAAAA to check meter, have following three kinds of possibilities according to different reception conditions:
1) bus is confiscated any data, this illustrates and does not connect electric energy meter below this equipment, directly terminates to search table process.
2) 485 buses receive a complete message, this illustrates and has only connect one piece of electric energy meter below this equipment, also directly terminates to search table process after the information of this electric energy meter being uploaded.
3) bus collision detected on 485, this just represents and has connect more than one piece of electric energy meter below this equipment, needs to carry out next round search and confirms.Then, search for first round wildcard, i.e. AAAAAAAAAA00 ~ AAAAAAAAAA99, send out 100 meter reading instruction altogether, after each sends, also there are three kinds of situations:
1) bus is confiscated any data, this illustrates and does not connect electric energy meter below this address, sends out bar.
2) 485 buses receive a complete message, this illustrates and has only connect one piece of electric energy meter below this group of addresses, sends out bar order after the information of this electric energy meter being uploaded.
3) bus collision detected on 485, this just represents and has connect more than one piece of electric energy meter below this group of addresses, needs to carry out next round search and confirms.Screened by the first round, the ammeter information of minimum two of address can be determined, such as detect when sending out AAAAAAAAAA12 and conflicted, 2 pieces and above ammeter is had under devices illustrated, and the address lowest order of ammeter is 12, at this moment just can look for toward upper level, from AAAAAAAA0012 ~ AAAAAAAA9912, the high two of address can be determined further by these 100 orders, if still have conflict on these high 2, such as this table number is AAAAAA2312, 2 pieces and above ammeter is had under devices illustrated, and four is 2312 behind the address of ammeter, at this moment just can look for toward upper level again, from AAAAAA002312 ~ AAAAAA992312, the 5th of address can be determined further by these 100 articles of orders, six, if this 5th, 6 two still there is conflict, such as this table number is AAAA152312, 2 pieces and above ammeter is had under devices illustrated, and six is 152312 behind the address of ammeter, at this moment just can look for toward upper level again, from AAAA00152312 ~ AAAA99152312, the 7th of address can be determined further by these 100 articles of orders, eight, if this 7th, 8 two still there is conflict, such as this table number is AAAA06152312, 2 pieces and above ammeter is had under devices illustrated, and eight is 06152312 behind the address of ammeter, at this moment just can look for toward upper level again, from AA0006152312 ~ AA9906152312, the 9th of address can be determined further by these 100 articles of orders, 12, if this 9th, 12 still there is conflict, such as this table number is AA1306152312, 2 pieces and above ammeter is had under devices illustrated, and ten is 1306152312 behind the address of ammeter, at this moment just can look for toward upper level again, from 001306152312 ~ 991306152312, the 11 of address can be determined further by these 100 articles of orders, 12, if bus replys the complete DLT645 data of a frame, then represent and this time send table number for hanging ammeter table number under this collector, such as: 681303152312, like this by above-mentioned maximum 60,000 search, finally complete the search of ammeter table number, finally, the table number record finally searched stores by concentrator.
Electric energy meter information all under equipment all can be searched for out by step above, worst situation is the address of two pieces of tables is 989999999999 and 999999999999, and this situation can be found after needing to send out 600 orders in theory.By one per second, also only need within 10 minutes, just table all can be searched out, and at the environment of actual field, because the electricity of same unit is substantially high-order consistent, low level difference.The time of therefore searching for often does not need 10 minutes.
Claims (1)
1. a low voltage power line carrier automatic meter searching method, is characterized in that, comprises the steps:
(1) first, initialization collector thus table information will be searched reset, then collector meets the concentrator order AAAAAAAAAAAA that sends instructions and checks meter, and processes respectively according to following three kinds of reception conditions:
1) the first situation: bus is confiscated any data, then illustrate and do not connect electric energy meter below this collector, directly terminates to search table process;
2) the second situation: bus receives a complete message, then illustrate and only connect one piece of electric energy meter below this collector, after the information of this electric energy meter is uploaded to concentrator by collector, directly terminate to search table process;
3) the third situation: concentrator detects bus collision, then illustrate and connect more than one piece of electric energy meter below this collector, needs to carry out search and confirm;
First search for first round wildcard, namely sequentially send instructions AAAAAAAAAA00 to AAAAAAAAAA99 successively, sends out 100 meter reading instruction altogether, after wherein each instruction sends, process respectively according to following three kinds of reception conditions:
A bus confiscates any data, then illustrates and do not connect electric energy meter below this address, order sends out bar instruction successively;
B bus receives a complete message, then illustrate and only connect one piece of electric energy meter below the group of addresses that this instruction is corresponding, collector sends out bar instruction after the information of this electric energy meter is uploaded concentrator;
C was screened by the first round, the ammeter information of minimum two of address can be determined, at this moment just look for toward upper level, from AAAAAAAA0012 ~ AAAAAAAA9912, the high two of address can be determined further by these 100 orders, if still have conflict on these high 2, at this moment just can look for toward upper level again, from AAAAAA002312 ~ AAAAAA992312, the 5th of address can be determined further by these 100 articles of orders, six, if this 5th, 6 two still there is conflict, at this moment just can look for toward upper level again, from AAAA00152312 ~ AAAA99152312, the 7th of address can be determined further by these 100 articles of orders, eight, if this 7th, 8 two still there is conflict, at this moment just can look for toward upper level again, from AA0006152312 ~ AA9906152312, the 9th of address can be determined further by these 100 articles of orders, 12, if this 9th, 12 still there is conflict, at this moment just can look for toward upper level again, from 001306152312 ~ 991306152312, the 11 of address can be determined further by these 100 articles of orders, 12, if bus replys the complete DLT645 data of a frame, then represent and this time send table number for hanging ammeter table number under this collector, like this by above-mentioned maximum 60,000 search, complete the search of ammeter table number, the table number record finally searched stores by last concentrator.
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| CN201511024428.0A CN105488992A (en) | 2015-12-31 | 2015-12-31 | Automatic meter searching method through low-voltage power line carrier wave |
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| CN201511024428.0A CN105488992A (en) | 2015-12-31 | 2015-12-31 | Automatic meter searching method through low-voltage power line carrier wave |
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Cited By (6)
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| CN106685594A (en) * | 2016-12-28 | 2017-05-17 | 浙江威星智能仪表股份有限公司 | Reliability method of processing wireless tele-transmission air code stream |
| CN107369309A (en) * | 2017-07-14 | 2017-11-21 | 国网浙江省电力公司 | A kind of water for half-duplex channel, air and heat meter active perception method |
| CN109361428A (en) * | 2018-10-31 | 2019-02-19 | 北京四季豆信息技术有限公司 | A kind of method and device of collector search electric energy meter |
| CN110248349A (en) * | 2019-06-24 | 2019-09-17 | 宁波三星医疗电气股份有限公司 | Search table method, apparatus, electronic equipment and system |
| CN110778221A (en) * | 2019-10-24 | 2020-02-11 | 广东电网有限责任公司 | Automatic meter searching method and auxiliary device for low-voltage distribution room |
| CN113891185A (en) * | 2021-10-18 | 2022-01-04 | 深圳弘星智联科技有限公司 | Method for collecting information of metering unit by user display unit |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106685594A (en) * | 2016-12-28 | 2017-05-17 | 浙江威星智能仪表股份有限公司 | Reliability method of processing wireless tele-transmission air code stream |
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| CN107369309B (en) * | 2017-07-14 | 2019-07-16 | 国网浙江省电力公司 | A kind of water for half-duplex channel, air and heat meter actively perceive method |
| CN109361428A (en) * | 2018-10-31 | 2019-02-19 | 北京四季豆信息技术有限公司 | A kind of method and device of collector search electric energy meter |
| CN110248349A (en) * | 2019-06-24 | 2019-09-17 | 宁波三星医疗电气股份有限公司 | Search table method, apparatus, electronic equipment and system |
| CN110778221A (en) * | 2019-10-24 | 2020-02-11 | 广东电网有限责任公司 | Automatic meter searching method and auxiliary device for low-voltage distribution room |
| CN110778221B (en) * | 2019-10-24 | 2023-05-02 | 广东电网有限责任公司 | Automatic meter searching method and auxiliary device for low-voltage transformer area |
| CN113891185A (en) * | 2021-10-18 | 2022-01-04 | 深圳弘星智联科技有限公司 | Method for collecting information of metering unit by user display unit |
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Application publication date: 20160413 |
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