CN102831756A - Mobile terminal positioning electric utility meter reading method and meter reading system - Google Patents
Mobile terminal positioning electric utility meter reading method and meter reading system Download PDFInfo
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- CN102831756A CN102831756A CN201210351767XA CN201210351767A CN102831756A CN 102831756 A CN102831756 A CN 102831756A CN 201210351767X A CN201210351767X A CN 201210351767XA CN 201210351767 A CN201210351767 A CN 201210351767A CN 102831756 A CN102831756 A CN 102831756A
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Abstract
The invention discloses a mobile terminal positioning electric utility meter reading method and meter reading system, relating to a wireless meter reading control process and system. The method and system disclosed by the invention solve the problems that much labor and time are consumed by the existing layer-by-layer meter reading and the restructuring cost of the electric meter is too high. The system comprises N meter reading servers, a mobile terminal and a main server. The meter reading method comprises the following steps of: I, executing login; II, inputting the address of a building or specific landmark into a search interface of an operation interface, and downloading a fingerprint database of the building; III, sending a meter reading code signal to each electric meter of the building through a mobile terminal by a meter reader, and sending the meter reading data information to the mobile terminal of the meter reader through the meter reading servers by each electric meter receiving the meter reading code signal; and IV, obtaining the meter reading data information and performing position matching with the fingerprint database, packing, and transferring the packed meter reading data information to the main server of the electric power bureau through the GPRS (general packet radio service). The method and system disclosed by the invention are suitable for the electric utility meter reading process.
Description
Technical field
The present invention relates to a kind of radio meter register control procedure and system.
Background technology
Growing and perfect along with domestic intellectualizing system all begins to install long-distance meter-reading system at present in most residential quarters, as the important component part of modern management system, this system has brought into play considerable effect.Ammeter in the residential area in each man of resident family is installed concentratedly in every layer electric well, will expend a lot of manpowers and time when successively checking meter, and brings difficulty so just for the statistical work of checking meter of administrative authority.And existing wireless kilowatt meter reading-out system all needs specific meter copying device, the problem too high to the improvement expenses of ammeter.
Summary of the invention
The present invention will expend a lot of manpowers and time in order to solve to have now when successively checking meter, and the too high problem of the improvement expenses of ammeter, and has proposed a kind of portable terminal location electric industry meter register method and kilowatt meter reading-out system.
Portable terminal of the present invention location electric industry meter register method step comprises:
Step 1: when arriving this solitary building that institute will check meter, when the person of checking meter will begin to check meter, at first open the portable terminal program, the entering login interface is imported oneself username and password, carries out login authentication, if login authentication is passed through, then gets into operation interface;
Step 2: in the search interface that the address or the specific landmark of said buildings is input to operation interface; Download said buildings fingerprint base, said fingerprint base comprises the number of ammeter in the electronic chart, buildings of buildings, the subscriber-coded of coding, each ammeter position coordinates and each ammeter of checking meter of each ammeter;
Step 3: the person of checking meter is sent the coded signal of checking meter through portable terminal to each ammeter of said buildings, receives the portable terminal that each ammeter of the coded signal of checking meter sends to meter reading data information through amr server the person of checking meter; Said meter reading data information comprises subscriber-coded, the said ammeter user electricity of said ammeter position coordinates, ammeter, whether arrearage outage and rate of qualified voltage monitoring automatically;
Step 4: obtain meter reading data information and said fingerprint base and position coupling and packing, and the meter reading data information after will packing sends the director server of power administration to through GPRS.
The present invention combines the portable terminal location electric industry kilowatt meter reading-out system of said method to comprise N amr server, portable terminal and director server;
N is the ammeter number, and each amr server is installed on each user's the ammeter,
Said amr server comprises gathers meter reading data information module and sending module;
Gather the meter reading data information module, be used for gathering in real time user's electricity on the ammeter that is installed in, arrearage outage and user's voltage automatically whether;
Sending module is used for after obtaining the signal of checking meter that portable terminal sends, will gathering the meter reading data information module meter reading data signal that obtains of checking meter and sends to portable terminal;
Said portable terminal comprises receiving element, computing storage unit and communication of mobile terminal unit;
Receiving element is used to receive meter reading data signal that amr server sends and transmits to the computing storage unit;
The computing storage unit, the meter reading data that is used to locate matching operation and stores packing;
The communication of mobile terminal unit, foundation is connected with the data transmission of director server end based on existing mobile communication network, with the meter reading data after the packing in director server transmission computing storage unit;
Said director server comprises and is used for setting up server in communication communication unit and storer and processor with portable terminal.
The present invention correctly identifies the numerical value in the ammeter, and correct transmission of this numerical value gone back.And collection is copied and accepted, and user's electricity, arrearage are cut off the power supply automatically and the rate of qualified voltage monitoring.The direct copy reading onsite user of the Central Control Room server ammeter reading of power administration can carry out batch or select copy reading individually, preserves the historical data of copy reading automatically.Ammeter data to copying and accepting is added up, is chargeed, and forms detailed electricity consumption archives.Can carry out scene or long-range electricity consumption check and correction.Carry out the inquiry of electricity consumer power consumption fast.On existing ammeter, install and gather the meter reading data information module, also need not increase too high cost.The present invention is applicable to that electric industry checks meter in the process.
Description of drawings
Fig. 1 is the structural representation of portable terminal of the present invention location electric industry kilowatt meter reading-out system.
Embodiment
Embodiment one: combine Fig. 1 that this embodiment is described, the portable terminal location electric industry meter register method step in this embodiment comprises:
Step 1: when arriving this solitary building that institute will check meter, when the person of checking meter will begin to check meter, at first open portable terminal 2 programs, the entering login interface is imported oneself username and password, carries out login authentication, if login authentication is passed through, then gets into operation interface;
Step 2: in the search interface that the address or the specific landmark of said buildings is input to operation interface; Download said buildings fingerprint base, said fingerprint base comprises the number of ammeter in the electronic chart, buildings of buildings, the subscriber-coded of coding, each ammeter position coordinates and each ammeter of checking meter of each ammeter;
Step 3: the person of checking meter is sent the coded signal of checking meter through portable terminal 2 to each ammeter of said buildings, receives the portable terminal 2 that each ammeter of the coded signal of checking meter sends to meter reading data information through amr server 1 person of checking meter; Said meter reading data information comprises subscriber-coded, the said ammeter user electricity of said ammeter position coordinates, ammeter, whether arrearage outage and rate of qualified voltage monitoring automatically;
Step 4: obtain meter reading data information and said fingerprint base and position coupling and packing, and the meter reading data information after will packing sends the director server 3 of power administration to through GPRS.
Embodiment two: this embodiment and embodiment one difference are to obtain that ammeter information positions coupling with said fingerprint base and the step of packing is following in the step 4:
Ammeter position coordinates in each meter reading data information in all ammeters that obtain and the ammeter position coordinates in all fingerprint bases are mated successively; The ammeter that coupling is accomplished carries out subscriber-coded in the subscriber-coded and fingerprint base of this ammeter again and joins; When position coordinates and subscriber-coded homogeneous phase while; Said ammeter coupling is accomplished, and will locate meter reading data information that coupling accomplishes, do not match the meter reading data information of position coordinates and do not match subscriber-coded meter reading data information and all pack.Other step is identical with embodiment one.
Embodiment three: combine Fig. 1 that this embodiment is described, this embodiment is the portable terminal location electric industry kilowatt meter reading-out system that combines embodiment one, and it comprises N amr server 1, portable terminal 2 and director server 3;
N is the ammeter number, and each amr server 1 is installed on each user's the ammeter,
Said amr server 1 comprises gathers meter reading data information module 1-1 and sending module 1-2;
Gather meter reading data information module 1-1, be used for gathering in real time user's electricity on the ammeter that is installed in, arrearage outage and user's voltage automatically whether; Gather meter reading data information module 1-1 and comprise ammeter sensor and collector storage,, deliver to the collector storage of each table the data process functional transformation that each ammeter sensor spreads out of.The ammeter sensor different according to the type different choice of ammeter can adopt mechanical ammeter sensor or electronic electricity meter sensor;
Sending module 1-2 is used for after obtaining the signal of checking meter that portable terminal 2 sends, will gathering the meter reading data information module 1-1 meter reading data signal that obtains of checking meter and sends to portable terminal 2;
Said portable terminal 2 comprises receiving element 2-1, computing storage unit 2-2 and communication of mobile terminal unit 2-3; Said portable terminal 2 is mobile phone,
Receiving element 2-1 is used to receive meter reading data signal that amr server 1 sends and transmits to computing storage unit 2-2;
Computing storage unit 2-2, the meter reading data that is used to locate matching operation and stores packing;
Communication of mobile terminal unit 2-3, foundation is connected with the data transmission of director server end based on existing mobile communication network, with the meter reading data after the packing in director server 3 transmission computing storage unit 2-2;
Said director server 3 comprises and is used for setting up server in communication communication unit 3-1 and storer 3-2 and processor 3-3 with portable terminal 2.
Embodiment four: this embodiment is that with embodiment three differences sending module 1-2 and receiving element 2-1 are bluetooth transmission means.Other composition is identical with embodiment three with connected mode.
Content of the present invention is not limited only to the content of above-mentioned each embodiment, and the combination of one of them or several embodiments equally also can realize the purpose of inventing.
Claims (5)
1. portable terminal is located the electric industry meter register method, it is characterized in that its step comprises:
Step 1: when arrive this solitary building that will check meter, when the person of checking meter will begin to check meter, at first open portable terminal (2) program; Get into login interface, import the username and password of oneself, carry out login authentication; If login authentication is passed through, then get into operation interface;
Step 2: in the search interface that the address or the specific landmark of said buildings is input to operation interface; Download said buildings fingerprint base, said fingerprint base comprises the number of ammeter in the electronic chart, buildings of buildings, the subscriber-coded of coding, each ammeter position coordinates and each ammeter of checking meter of each ammeter;
Step 3: the person of checking meter is sent the coded signal of checking meter through portable terminal (2) to each ammeter of said buildings, receives the portable terminal (2) that each ammeter of the coded signal of checking meter sends to meter reading data information through amr server (1) person of checking meter; Said meter reading data information comprises subscriber-coded, the said ammeter user electricity of said ammeter position coordinates, ammeter, whether arrearage outage and rate of qualified voltage monitoring automatically;
Step 4: obtain meter reading data information and said fingerprint base and position coupling and packing, and the meter reading data information after will packing sends the director server (3) of power administration to through GPRS.
2. portable terminal according to claim 1 location electric industry meter register method is characterized in that obtaining that ammeter information positions coupling with said fingerprint base and the step of packing is following in the step 4:
Ammeter position coordinates in each meter reading data information in all ammeters that obtain and the ammeter position coordinates in all fingerprint bases are mated successively; The ammeter that coupling is accomplished carries out subscriber-coded in the subscriber-coded and fingerprint base of this ammeter again and joins; When position coordinates and subscriber-coded homogeneous phase while; Said ammeter coupling is accomplished, and will locate meter reading data information that coupling accomplishes, do not match the meter reading data information of position coordinates and do not match subscriber-coded meter reading data information and all pack.
3. according to the portable terminal location electric industry kilowatt meter reading-out system of the said method of claim 1, it is characterized in that it comprises N amr server (1), portable terminal (2) and director server (3);
N is the ammeter number, and each amr server (1) is installed on each user's the ammeter,
Said amr server (1) comprises gathers meter reading data information module (1-1) and sending module (1-2);
Gather meter reading data information module (1-1), be used for gathering in real time user's electricity on the ammeter that is installed in, arrearage outage and user's voltage automatically whether;
Sending module (1-2) is used for after obtaining the signal of checking meter that portable terminal (2) sends, will gathering meter reading data information module (1-1) the meter reading data signal that obtains of checking meter and sends to portable terminal (2);
Said portable terminal (2) comprises receiving element (2-1), computing storage unit (2-2) and communication of mobile terminal unit (2-3);
Receiving element (2-1) is used to receive meter reading data signal that amr server (1) sends and transmits to computing storage unit (2-2);
Computing storage unit (2-2), the meter reading data that is used to locate matching operation and stores packing;
Communication of mobile terminal unit (2-3), foundation is connected with the data transmission of director server end based on existing mobile communication network, with the meter reading data after the packing in director server (3) transmission computing storage unit (2-2);
Said director server (3) comprises and being used for and portable terminal (2) is set up server in communication communication unit (3-1) and storer (3-2) and processor (3-3).
4. portable terminal according to claim 3 location electric industry kilowatt meter reading-out system is characterized in that said portable terminal (2) is a mobile phone.
5. according to claim 3 or 4 described portable terminal location electric industry kilowatt meter reading-out systems, it is characterized in that sending module (1-2) and receiving element (2-1) are bluetooth transmission means.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201210351767.XA CN102831756B (en) | 2012-09-20 | 2012-09-20 | Mobile terminal positioning electric utility meter reading method and meter reading system |
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| CN201210351767.XA CN102831756B (en) | 2012-09-20 | 2012-09-20 | Mobile terminal positioning electric utility meter reading method and meter reading system |
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| CN102831756A true CN102831756A (en) | 2012-12-19 |
| CN102831756B CN102831756B (en) | 2014-10-15 |
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103413416A (en) * | 2013-08-08 | 2013-11-27 | 国家电网公司 | Intelligent meter reading system and method |
| CN103927860A (en) * | 2014-04-04 | 2014-07-16 | 上海君世电气科技有限公司 | GPS (Global Position System)-positioned meter reading smart handheld machine and meter reading system |
| CN104980457A (en) * | 2014-04-03 | 2015-10-14 | 湖南第五智能科技有限公司 | Intelligent electric meter system |
| CN105160853A (en) * | 2015-09-06 | 2015-12-16 | 国网山东利津县供电公司 | Electric power measurement remote meter reading failure patrolling system and method |
| CN105225454A (en) * | 2015-09-29 | 2016-01-06 | 南京军理科技股份有限公司 | A kind of multi-object off-line data collecting method and system thereof |
| CN105575101A (en) * | 2015-12-24 | 2016-05-11 | 深圳市思达仪表有限公司 | GIS-based power management system and management method |
| CN106710180A (en) * | 2015-07-23 | 2017-05-24 | 深圳市拓安信计控仪表有限公司 | Meter reading method of water meter, water meter and system |
| CN106973055A (en) * | 2017-03-29 | 2017-07-21 | 国网山东省电力公司平阴县供电公司 | Meter register method and system |
| WO2017177976A1 (en) * | 2016-04-15 | 2017-10-19 | 中兴通讯股份有限公司 | Meter reading method and apparatus, and storage medium |
| CN109831003A (en) * | 2019-02-01 | 2019-05-31 | 广州灿明都科技有限责任公司 | A kind of string code configuration method, device, equipment and the storage medium of ammeter |
| CN111505665A (en) * | 2020-04-16 | 2020-08-07 | 广东电网有限责任公司梅州供电局 | Ammeter positioning method, ammeter positioning device and mobile terminal |
| CN112261122A (en) * | 2020-10-20 | 2021-01-22 | 云南电网有限责任公司 | Sharing economic mode meter reading method based on intelligent data acquisition unit and intelligent data acquisition unit |
| CN112289017A (en) * | 2020-10-28 | 2021-01-29 | 国网安徽省电力有限公司合肥供电公司 | Remote meter reading method and system for intelligent electric energy meter |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2710261Y (en) * | 2004-04-28 | 2005-07-13 | 董永兵 | Multifunction hand terminal apparatus for power network monitoring management system |
| CN1750058A (en) * | 2004-09-16 | 2006-03-22 | 李昀 | Radio automatic meter recording system and its meter recording method |
| CN101615028A (en) * | 2009-03-16 | 2009-12-30 | 贵阳供电局 | Palmtop marketing system for on-site service for electric power customers |
| CN102055796A (en) * | 2010-11-25 | 2011-05-11 | 深圳市科陆电子科技股份有限公司 | Positioning navigation manual meter reading system |
| CN102446315A (en) * | 2011-09-20 | 2012-05-09 | 深圳市科陆电子科技股份有限公司 | Wireless power utilization management system and management method |
-
2012
- 2012-09-20 CN CN201210351767.XA patent/CN102831756B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2710261Y (en) * | 2004-04-28 | 2005-07-13 | 董永兵 | Multifunction hand terminal apparatus for power network monitoring management system |
| CN1750058A (en) * | 2004-09-16 | 2006-03-22 | 李昀 | Radio automatic meter recording system and its meter recording method |
| CN101615028A (en) * | 2009-03-16 | 2009-12-30 | 贵阳供电局 | Palmtop marketing system for on-site service for electric power customers |
| CN102055796A (en) * | 2010-11-25 | 2011-05-11 | 深圳市科陆电子科技股份有限公司 | Positioning navigation manual meter reading system |
| CN102446315A (en) * | 2011-09-20 | 2012-05-09 | 深圳市科陆电子科技股份有限公司 | Wireless power utilization management system and management method |
Cited By (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103413416A (en) * | 2013-08-08 | 2013-11-27 | 国家电网公司 | Intelligent meter reading system and method |
| CN104980457A (en) * | 2014-04-03 | 2015-10-14 | 湖南第五智能科技有限公司 | Intelligent electric meter system |
| CN103927860A (en) * | 2014-04-04 | 2014-07-16 | 上海君世电气科技有限公司 | GPS (Global Position System)-positioned meter reading smart handheld machine and meter reading system |
| CN106710180A (en) * | 2015-07-23 | 2017-05-24 | 深圳市拓安信计控仪表有限公司 | Meter reading method of water meter, water meter and system |
| CN105160853A (en) * | 2015-09-06 | 2015-12-16 | 国网山东利津县供电公司 | Electric power measurement remote meter reading failure patrolling system and method |
| CN105225454A (en) * | 2015-09-29 | 2016-01-06 | 南京军理科技股份有限公司 | A kind of multi-object off-line data collecting method and system thereof |
| CN105575101A (en) * | 2015-12-24 | 2016-05-11 | 深圳市思达仪表有限公司 | GIS-based power management system and management method |
| WO2017107610A1 (en) * | 2015-12-24 | 2017-06-29 | 深圳市思达仪表有限公司 | Gis-based power management system and management method |
| CN107301770A (en) * | 2016-04-15 | 2017-10-27 | 中兴通讯股份有限公司 | Meter register method and device |
| WO2017177976A1 (en) * | 2016-04-15 | 2017-10-19 | 中兴通讯股份有限公司 | Meter reading method and apparatus, and storage medium |
| CN106973055A (en) * | 2017-03-29 | 2017-07-21 | 国网山东省电力公司平阴县供电公司 | Meter register method and system |
| CN106973055B (en) * | 2017-03-29 | 2020-01-07 | 国网山东省电力公司平阴县供电公司 | Meter reading method and system |
| CN109831003A (en) * | 2019-02-01 | 2019-05-31 | 广州灿明都科技有限责任公司 | A kind of string code configuration method, device, equipment and the storage medium of ammeter |
| CN109831003B (en) * | 2019-02-01 | 2022-03-08 | 广州灿明都科技有限责任公司 | Method, device and equipment for configuring serial codes of electric meter and storage medium |
| CN111505665A (en) * | 2020-04-16 | 2020-08-07 | 广东电网有限责任公司梅州供电局 | Ammeter positioning method, ammeter positioning device and mobile terminal |
| CN111505665B (en) * | 2020-04-16 | 2023-08-18 | 广东电网有限责任公司梅州供电局 | Ammeter positioning method, ammeter positioning device and mobile terminal |
| CN112261122A (en) * | 2020-10-20 | 2021-01-22 | 云南电网有限责任公司 | Sharing economic mode meter reading method based on intelligent data acquisition unit and intelligent data acquisition unit |
| CN112289017A (en) * | 2020-10-28 | 2021-01-29 | 国网安徽省电力有限公司合肥供电公司 | Remote meter reading method and system for intelligent electric energy meter |
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| CN102831756B (en) | 2014-10-15 |
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Address after: 150010 Heilongjiang city of Harbin province Daoli District Shangzhi Street No. 188 Applicant after: STATE GRID HEILONGJIANG ELECTRIC POWER CO., LTD., HARBIN POWER SUPPLY Co. Applicant after: State Grid Corporation of China Address before: 150010 Heilongjiang city of Harbin province Daoli District Shangzhi Street No. 188 Applicant before: Harbin Electric Power Bureau Applicant before: State Grid Corporation of China |
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