CN204537423U - Based on the Automatic meter reading system of RF and GPRS/3G - Google Patents
Based on the Automatic meter reading system of RF and GPRS/3G Download PDFInfo
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- CN204537423U CN204537423U CN201520156840.7U CN201520156840U CN204537423U CN 204537423 U CN204537423 U CN 204537423U CN 201520156840 U CN201520156840 U CN 201520156840U CN 204537423 U CN204537423 U CN 204537423U
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Abstract
The utility model discloses a kind of Automatic meter reading system based on RF and GPRS/3G, comprising: communication bus, RF module, GPRS or 3G wireless communication module, electric energy meter, collector, concentrator and main website; Collector and concentrator are connected by communication bus with some electric energy meters respectively, communicate between described concentrator with some collectors respectively by RF module; Described concentrator is communicated by GPRS or 3G wireless communication module with between main website; The single-chip microcomputer that described RF module comprises RF chip and is connected with RF chip.The utility model beneficial effect: adopt the RF technical transmission ammeter number of degrees, no matter automatic data logging all correctly, fast, in time can be carried out in indoor out of doors.Compared with wired meter reading method, have networking very flexibly, the feature such as convenience, easy maintenance, and avoid wired meter reading system and to connect up the problem such as inconvenient, great in constructing amount.
Description
Technical field
The utility model relates to Automatic meter reading field, particularly relates to a kind of Automatic meter reading system based on RF and GPRS/3G.
Background technology
Automatic data logging (Automatic Meter Reading-AMR) technology refers to and adopts modern communication technology and computer technology, client's electric energy consumption situation is carried out to an emerging technology of remote monitoring, Real-time Collection and transmission process.State Grid Corporation of China explicitly points out and will prepare for open resident living power utility market, establishes the long-term goal of " Every household has an ammeter, centralized automatic meter-reading, bank's networking ".How the huge and power consumption information of dispersion and other data timely and effective and collect like clockwork, Classified statistics, become the problem that power supply enterprise is in the urgent need to address.If only checked meter from door to door with the workman that checks meter, not only make work efficiency low, and the leakage brought by manual metering is copied, copies by mistake, estimated and copy, even meter reading personnel steals the phenomenons such as electricity in league with electricity consumer, all can bring immeasurable loss to power supply enterprise.Power supply enterprise be badly in need of a kind of invest less, install and easy to maintenance, reliable communications, accurate measurement electric energy meter remote automatic meter reading scheme.
Automatic meter reading system is mainly to gather and attach most importance to and carry out in transmission two aspects.At present, electric system automatic data logging mode mainly contains: bus (RS-485, RS-232 etc.), wireless (RF, infrared, GPRS etc.), power line carrier (common, spread spectrum), zero phase ultra-narrow band (TURTLE), ultra-narrow band extremely low frequency (UNB) and over zero modulation (PFC) are across transformer platform area mode etc.Based on the multi-point and wide-ranging feature of Automatic meter reading system, simple employing wire transmission mode, have that line upkeep workload is large, communication contention aware is frequent, be disturbed the shortcomings such as impact is large, stability is not high, along with the development of wireless communications digital network, wireless automatic meter reading has become the inexorable trend of development.
Utility model content
The purpose of this utility model is exactly to solve the problem, propose a kind of Automatic meter reading system based on RF and GPRS/3G, this system synthesis plurality of communication schemes, adopt composite communication mode, scope of checking meter is wide, and always online, system transmission capacity is large, data transfer rate is high, construction cost and communication cost lower.
To achieve these goals, the utility model adopts following technical scheme:
Based on an Automatic meter reading system of RF and GPRS/3G, comprising: communication bus, RF module, GPRS or 3G wireless communication module, electric energy meter, collector, concentrator and main website;
Described collector and concentrator are connected by communication bus with some electric energy meters respectively, communicate between described concentrator with some collectors respectively by RF module; Described concentrator is communicated by GPRS or 3G wireless communication module with between main website; The single-chip microcomputer that described RF module comprises RF chip and is connected with RF chip.
Described communication bus is RS-485 bus, adopts RS-485 bus to communicate between collector with intelligent electric meter.
Described electric energy meter is mechanical power energy meter, pulse output type electric energy meter or Intelligent type electronic ellectric energy meter.
Described collector comprises: collector master controller and the data acquisition module, data communication module, data memory module and the relay forwarding module that are connected respectively with described collector master controller and data retransmission interface;
Described data acquisition module is for gathering electric energy meter real time data, integral point data, freezing data and alert data;
Described data communication module comprises wireless communication unit, RS-485 bus communication unit and data forwarding unit; Described wireless communication unit communicates with concentrator, and described 485 bus communication unit are connected with electric energy meter.
Described each collector inside is equipped with rechargeable battery power supply in support.
Described concentrator comprises: concentrator master controller and the data acquisition module, data communication module and the data memory module that are connected respectively with described concentrator master controller;
Described data acquisition module is for gathering electric energy meter real time data, integral point data, freezing data and alert data;
Described data communication module comprises: GPRS communication unit, area communication units, data retransmission interface, subtending port and UDI interface; Described GPRS communication unit and master station communication, area communication units communicates with electric energy meter.
Described concentrator also has infrared interface, local network interface, upper network interface; There is display screen and alarm module simultaneously.
The beneficial effects of the utility model are:
The utility model adopts the RF technical transmission ammeter number of degrees, no matter automatic data logging all correctly, fast, in time can be carried out in indoor out of doors.Compared with wired meter reading method, have networking very flexibly, the feature such as convenience, easy maintenance, and avoid wired meter reading system and to connect up the problem such as inconvenient, great in constructing amount.
There is rechargeable battery power supply in support collector inside, and when supply line has a power failure, powered to collector and electric energy meter separately by the battery of each collector, what can not affect collector normally copies and accepts work.
The utility model is suited measures to local conditions, and maximizes favourable factors and minimizes unfavourable ones, and has given full play to the advantage of three kinds of communication modes.In underlying communication network, because the distance between electric energy meter and collector is shorter, wiring is convenient, and be not very high to the requirement of message transmission rate, select RS485, both ensure that communication quality, again save cost, its communication protocol also can be formulated as required flexibly.Middle level communication network, utilizes RF technology to realize the communication of collector and concentrator, low cost, low-power consumption, can peer-to-peer communications and networking is rapid.Telecommunications network between the concentrator of the superiors and main website adopts GPRS technology, and anti-interference is good, and scope of checking meter is wide, always online, and system transmission capacity is large, and data transfer rate is high, and construction cost and communication cost are also low.
Accompanying drawing explanation
Fig. 1 is the utility model Automatic meter reading system structural representation;
Fig. 2 is the utility model collector structural representation;
Fig. 3 is the utility model concentrator structure schematic diagram;
Embodiment:
Below in conjunction with accompanying drawing and embodiment, the utility model is described further:
Based on an Automatic meter reading system of RF and GPRS/3G, as shown in Figure 1, comprising: communication bus, RF module, GPRS or 3G wireless communication module, electric energy meter, collector, concentrator and main website;
Collector and concentrator are connected by communication bus with some electric energy meters respectively, communicate between concentrator with some collectors respectively by RF module; Communicated by GPRS or 3G wireless communication module between concentrator with main website; The single-chip microcomputer that RF module comprises RF chip and is connected with RF chip.
Bottom electric energy meter is connected with adopting RS-485 line between collector; Middle level communication network adopts RF module to set up the communication of collector and concentrator; Overlay communication network, concentrator utilizes public network and master station communication by GPRS module, and the 3G communication technology even can be considered to apply to the communication of concentrator to control center.
RF technology be a kind of closely, low complex degree, low-power consumption, low cost and the wireless communication technology compared with low transmission rate.Native system adopts the RF technical transmission ammeter number of degrees, no matter automatic data logging all correctly, fast, in time can be carried out in indoor out of doors.
RF module adopts single-chip microcomputer to add the form of RF chip, can arrange in pairs or groups flexibly between such single-chip microcomputer and RF chip, select the single-chip microcomputer of C8051F series to control RF chip, make the exploitation of radio communication fairly simple, utilizable resource is many, and expanded function is also very convenient.
Electric energy meter is the equipment of system least significant end, can record the information storing user's consume electric power, generally be divided into traditional mechanical type, pulse output type and Intelligent type electronic ellectric energy meter.Wherein, mechanical power energy meter needs to install corresponding sensor to meet the collection of signal; Pulse output type electric energy meter then can directly output pulse signal to collector; Intelligent type electronic ellectric energy meter is only electric energy meter digitized advanced stage, is the modern electric energy meter representing development trend.Such as, three-phase multifunctional electronic electric energy meter, the single-phase carrier wave meter etc. with multi tariff function all belongs to this row.The electric energy meter that native system adopts is the intelligent electric meter with standard RS-485 serial line interface.
As shown in Figure 2, collector primary responsibility carries out acquisition process, event memory to the data that electric energy meter transmits, and communicates with upper level website concentrator as required.There is rechargeable battery power supply in support collector inside, and when supply line has a power failure, powered to collector and electric energy meter separately by the battery of each collector, what can not affect collector normally copies and accepts work.Meanwhile, collector also should possess the communication function of alternate manner (as infrared), so that when collector and the external world contact interruption, automanual mode can be adopted to check meter.
Collector comprises: collector master controller and the data acquisition module, data communication module, data memory module and the relay forwarding module that are connected respectively with described collector master controller and data retransmission interface; Data acquisition module is for gathering electric energy meter real time data, integral point data, freezing data and alert data; Data communication module comprises wireless communication unit, RS-485 bus communication unit and data forwarding unit; Wireless communication unit communicates with concentrator, and 485 bus communication unit are connected with electric energy meter.
As shown in Figure 3, concentrator plays a part to form a connecting link in the entire system, is equivalent to the vertebra of human body, and status is very important.It can receive and assign the order of main website, copies and accepts the data storing each collector, and by certain transmission medium, data is reached main website and carry out data processing.Concentrator should possess several interface, is used for being connected from different interfacing equipments: should have infrared interface, local network interface and upper network interface; There is corresponding storage capacity simultaneously, can save historical data and event record; Clock and calendar function, can adapt to multi tariff and timing meter reading; Also have Presentation Function, statistical function and warning function etc.
Concentrator comprises: concentrator master controller and the data acquisition module, data communication module and the data memory module that are connected respectively with described concentrator master controller; Data acquisition module is for gathering electric energy meter real time data, integral point data, freezing data and alert data; Data communication module comprises: GPRS communication unit, area communication units, data retransmission interface, subtending port and UDI interface; GPRS communication unit and master station communication, area communication units communicates with electric energy meter.
The master controller of collector and concentrator all can select the microcontroller LPC2138 of Philips company, and this controller supports 32 ARM7TDMI-S CPU of real-time simulation and Embedded Trace based on one, and with the high speed flash storage that 512kB embeds.The frequency of operation of LPC2138 is high, and processing speed is fast, and message transmission rate is high, and there is multiple serial line interface, can realize the data transfer communications of upstream and downstream, its volume is little in addition simultaneously, low in energy consumption, safe reliability is good, therefore is suitable as the master controller of native system collector and concentrator.
Main station system can receive and store the electric power data of each user, carries out adding up, analyzes, the work such as centralized charging and report printing.It takes on the overhead control work of whole system, and system based on hardware and software platform, should can support various standardized equipment and stipulations, has good retractility and builds the ability of distributed system, easily and other automated system realize interface and integrated.
The electric energy meter of system all adopts the intelligent electric meter with standard RS-485 serial line interface.Collector is generally installed in ammeter box, facilitates the collection of electric energy meter data, and native system collector can gather at most 128 (32 × 4) individual electric energy meter.All collectors should be taken into account as far as possible in the position that concentrator is installed, surrounding geometric center with collector is installed as suitable, but it is convenient in order to get 220V working power to concentrator, also concentrator can be arranged on community switchgear building, the antenna of concentrator should be positioned over the good position of GPRS/3G signal.Native system concentrator can hold at most 250 collectors, 32000 resident's electric energy meters, the major function of concentrator.The main website of system adopts industrial computer, can provide concentrated, grouping, point are copied, in real time, the service of making a copy of of regularly (by user's order), front some day (maximum 30 days) and appointed date electricity, the data of copying back storage is in a computer or on server.Computing machine provides friendly Windows operation interface, and user's meter reading data intuitive display is understandable, can be poured into database or the form of other type, and can utilize printer by data Print All out.In addition, main website also has the function to the data of concentrator verify, parameter is arranged, the time corrects.
By reference to the accompanying drawings embodiment of the present utility model is described although above-mentioned; but the restriction not to the utility model protection domain; one of ordinary skill in the art should be understood that; on the basis of the technical solution of the utility model, those skilled in the art do not need to pay various amendment or distortion that creative work can make still within protection domain of the present utility model.
Claims (7)
1. based on an Automatic meter reading system of RF and GPRS/3G, it is characterized in that, comprising: communication bus, RF module, GPRS or 3G wireless communication module, electric energy meter, collector, concentrator and main website;
Described collector and concentrator are connected by communication bus with some electric energy meters respectively, communicate between described concentrator with some collectors respectively by RF module; Described concentrator is communicated by GPRS or 3G wireless communication module with between main website; The single-chip microcomputer that described RF module comprises RF chip and is connected with RF chip.
2. a kind of Automatic meter reading system based on RF and GPRS/3G as claimed in claim 1, it is characterized in that, described communication bus is RS-485 bus, adopts RS-485 bus to communicate between collector with intelligent electric meter.
3. a kind of Automatic meter reading system based on RF and GPRS/3G as claimed in claim 1, it is characterized in that, described electric energy meter is mechanical power energy meter, pulse output type electric energy meter or Intelligent type electronic ellectric energy meter.
4. a kind of Automatic meter reading system based on RF and GPRS/3G as claimed in claim 1, it is characterized in that, described collector comprises: collector master controller and the data acquisition module, data communication module, data memory module and the relay forwarding module that are connected respectively with described collector master controller and data retransmission interface;
Described data acquisition module is for gathering electric energy meter real time data, integral point data, freezing data and alert data;
Described data communication module comprises wireless communication unit, RS-485 bus communication unit and data forwarding unit; Described wireless communication unit communicates with concentrator, and described 485 bus communication unit are connected with electric energy meter.
5. a kind of Automatic meter reading system based on RF and GPRS/3G as claimed in claim 1, it is characterized in that, described each collector inside is equipped with rechargeable battery power supply in support.
6. a kind of Automatic meter reading system based on RF and GPRS/3G as claimed in claim 1, it is characterized in that, described concentrator comprises: concentrator master controller and the data acquisition module, data communication module and the data memory module that are connected respectively with described concentrator master controller;
Described data acquisition module is for gathering electric energy meter real time data, integral point data, freezing data and alert data;
Described data communication module comprises: GPRS communication unit, area communication units, data retransmission interface, subtending port and UDI interface; Described GPRS communication unit and master station communication, area communication units communicates with electric energy meter.
7. a kind of Automatic meter reading system based on RF and GPRS/3G as claimed in claim 1, it is characterized in that, described concentrator also has infrared interface, local network interface, upper network interface; There is display screen and alarm module simultaneously.
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| CN201520156840.7U CN204537423U (en) | 2015-03-19 | 2015-03-19 | Based on the Automatic meter reading system of RF and GPRS/3G |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104732751A (en) * | 2015-03-19 | 2015-06-24 | 国家电网公司 | Automatic meter reading system and automatic meter reading method based on RF (radio frequency) and GPRS (general packet radio service)/3G (the 3rd generation telecommunication) |
| CN107528540A (en) * | 2017-03-09 | 2017-12-29 | 浙江省能源与核技术应用研究院 | Photovoltaic array on-Line Monitor Device and method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104732751A (en) * | 2015-03-19 | 2015-06-24 | 国家电网公司 | Automatic meter reading system and automatic meter reading method based on RF (radio frequency) and GPRS (general packet radio service)/3G (the 3rd generation telecommunication) |
| CN107528540A (en) * | 2017-03-09 | 2017-12-29 | 浙江省能源与核技术应用研究院 | Photovoltaic array on-Line Monitor Device and method |
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Granted publication date: 20150805 Termination date: 20170319 |