CN104200634A - GPRS (General Packet Radio Service) relay of remote ammeter reading system - Google Patents
GPRS (General Packet Radio Service) relay of remote ammeter reading system Download PDFInfo
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- CN104200634A CN104200634A CN201410474303.7A CN201410474303A CN104200634A CN 104200634 A CN104200634 A CN 104200634A CN 201410474303 A CN201410474303 A CN 201410474303A CN 104200634 A CN104200634 A CN 104200634A
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Abstract
The invention relates to a GPRS (General Packet Radio Service) relay of a remote ammeter reading system. The GPRS relay comprises an STM32F205 CPU (Central Processing Unit), a carrier signal transceiving chip, a GPRS transceiving chip, a carrier interface, a GPRS interface, a GPRS antenna, a 220V alternating current power supply interface, a carrier communication indicator light and a GPRS communication indicator light, wherein the GPRS transceiving chip is connected with an ammeter reading concentrator under the same transformer through the carrier interface and a power line, the GPRS transceiving chip is connected with the GPRS antenna through the GPRS interface, the carrier communication indicator light is connected with the carrier signal transceiving chip, the GPRS communication indicator light is connected with the GPRS transceiving chip, the 220V alternating current power supply interface is used for being connected with a 220V alternating current power supply, and the STM32F205 CPU is connected with the carrier signal transceiving chip and the GPRS transceiving chip so as to take charge of the transmission scheduling of carrier signals and GPRS signals. The GPRS relay is simple and convenient to mount and lower in cost, can be well communicated and matched with the existing concentrator, solves the GPRS signal covering problem and has great economic benefits.
Description
Technical field
The invention belongs to the communication technical field of power equipment, relate between a kind of carrier signal for power remote meter reading system and GPRS signal and changing and the communication facilities transmitting, relate in particular to a kind of can realization between carrier signal and GPRS signal and change and the GPRS repeater transmitting.
Background technology
Along with the propelling of the SG186 of State Grid Corporation of China Information System Project, electric system in all parts of the country is all in the construction of carrying out remote centralized meter-reading system.Within several years, the construction of remote centralized meter-reading system is all by the task of top priority that is electric power transformation.Along with carrying out of the construction of remote centralized meter-reading system, various users under electricity market as special change user, resident, industry and commerce user etc. all carry out the collection of energy data being incorporated to step by step this system, and the ammeter equipment matching with it and collection communication equipment are also in constantly progress and development.But, in process of construction, there is various installation questions and debugging problem.For example, current newly-built community, especially high level and little high-rise community, conventionally the position at basement or some GPRS weak output signals supply transformer design, this meter-copy collector that just causes dependence platform district Three Phase Carrier Based to be checked meter cannot possess stable GPRS signal, thereby cause data all or even cannot not transfer to electricity meter-reading central server, can not all even can not obtain order data from electricity meter-reading central server, thereby cause realizing well the collection of energy data.
Therefore, the GPRS communication unit of concentrator need to be transformed at present, make it be exposed to GPRS signal and cover good position, make concentrator see through carrier wave simultaneously and communicate by letter with it, realize conversion and the transmission of teledata, can solve preferably so existing Similar Problems.
Summary of the invention
The object of this invention is to provide a kind of GPRS repeater of power remote meter reading system, it installs simple, convenient, can solve dramatically the covering problem of GPRS signal, has good economic benefit; Meanwhile, GPRS repeater is non-maintaining, follows electric power enterprise communication standard, can from meter-copy collector, carry out local and remote maintenance work to it, very practical.
In order to achieve the above object, the invention provides following technical scheme: a kind of GPRS repeater of power remote meter reading system, it comprises a STM32F205 CPU, a carrier signal transceiving chip, a GPRS transceiving chip, a carrier interface, a GPRS interface, a GPRS antenna, a 220V AC power interface, the carrier communication pilot lamp pilot lamp of communicating by letter with a GPRS, wherein, described carrier signal transceiving chip is connected with the meter-copy collector under same transformer with line of electric force by described carrier interface, described GPRS transceiving chip is connected with described GPRS antenna by described GPRS interface, whether described carrier communication pilot lamp is connected to indicate described carrier signal transceiving chip at receiving and transmitting signal with described carrier signal transceiving chip, whether described GPRS communication pilot lamp is connected to indicate described GPRS transceiving chip at receiving and transmitting signal with described GPRS transceiving chip, described 220V AC power interface is used for connecting 220V AC power to provide power for operation to this GPRS repeater, described STM32F205 CPU and described carrier signal transceiving chip and described GPRS transceiving chip are connected to be responsible for the transmitting and scheduling of carrier signal and GPRS signal, thereby realize the stable transfer of signal between basement and internet.
Further, wherein, described carrier signal transceiving chip is DM2020 dual-mode chip.
Further, wherein, described GPRS transceiving chip is Thyrite GL868-DUAL module.
The GPRS repeater of power remote meter reading system of the present invention is for " 376.1 communications protocol " communication criterion that meets power industry company standard, make meter-copy collector send carrier communication information by local carrier module, after receiving carrier signal, GPRS repeater under same transformer resolves, and it is transferred on internet by GPRS communication chip, or GPRS chip receives and from the data on internet, it is resolved, and component carrier data are sent to meter-copy collector, realize accordingly the long-range GPRS function of concentrator, solve GPRS signal problem.
Brief description of the drawings
Fig. 1 is the structural representation of the GPRS repeater of power remote meter reading system of the present invention.
Fig. 2 is the GPRS repeater of power remote meter reading system of the present invention and the connection diagram of meter-copy collector.
Embodiment
Describe the specific embodiment of the present invention in detail below in conjunction with accompanying drawing, the content of embodiment is not as the restriction to protection scope of the present invention.
The GPRS repeater of power remote meter reading system of the present invention can solve the covering problem of GPRS signal, has good economic benefit, meanwhile, can from meter-copy collector, carry out local and remote maintenance work to it, very practical.
Fig. 1 shows the structural representation of the GPRS repeater of power remote meter reading system of the present invention.As shown in Figure 1, the GPRS repeater of power remote meter reading system of the present invention comprises a STM32F205CPU, a carrier signal transceiving chip, a GPRS transceiving chip, a carrier interface, a GPRS interface, a GPRS antenna, a 220V AC power interface, the carrier communication pilot lamp pilot lamp of communicating by letter with a GPRS.
Wherein, described carrier signal transceiving chip is connected with the meter-copy collector under same transformer with line of electric force by described carrier interface.In the present invention, described meter-copy collector no longer comprises GPRS module, and its collection obtaining is copied data and passed to GPRS repeater of the present invention by line of electric force with the form of carrier signal.Specific address, the local carrier module of described meter-copy collector is sent carrier communication information, and by line of electric force by described carrier communication communication to the carrier interface of described GPRS repeater, be transferred to described carrier signal transceiving chip by described carrier interface, and by described carrier signal transceiving chip, described carrier communication information resolved.In the present invention, described carrier signal transceiving chip can be the chip of various reception and the transmissions that can realize carrier signal as known in the art, for example DM2020 dual-mode chip.Meanwhile, whether described carrier communication pilot lamp is connected to indicate described carrier signal transceiving chip at receiving and transmitting signal with described carrier signal transceiving chip.Can judge whether to carry out carrier communication by described carrier communication pilot lamp, thereby contribute to staff to understand the working condition of described GPRS repeater.In the present invention, described carrier communication pilot lamp can be light emitting diode etc.
Described GPRS transceiving chip is connected with described GPRS antenna by described GPRS interface.Due to the existence of GPRS antenna, make it can upload the data to downloading data on Shang Hecong internet, internet.Meanwhile, described GPRS transceiving chip can receive and send GPRS signal and realize the parsing of GPRS signal.In the present invention, described GPRS transceiving chip can be the various chip that can realize the reception of GPRS signal and send as known in the art.Preferably, described GPRS transceiving chip is Thyrite GL868-DUAL module.Thyrite GL868-DUAL module is 900/1800MHZ double frequency module.Meanwhile, in the present invention, preferably, described GPRS antenna is that GPRS strengthens antenna, to increase reception and the transmittability of GPRS signal.In the time of concrete application, described GPRS antenna is placed into outdoor or GPRS signal and covers good region.And whether described GPRS communication pilot lamp is connected to indicate described GPRS transceiving chip at receiving and transmitting signal with described GPRS transceiving chip.Can judge whether to carry out GPRS communication by described GPRS communication pilot lamp, thereby contribute to staff to understand the working condition of described GPRS repeater.In the present invention, described GPRS communication pilot lamp can be also light emitting diode etc.
Described 220V AC power interface is used for connecting 220V AC power to provide power for operation to this GPRS repeater.By connecting 220V AC power, make this GPRS repeater can obtain power for operation, make its CPU can realize correlation function, and make described carrier signal transceiving chip can realize the reception of carrier signal and the parsing of transmission and carrier signal, make described GPRS signal transmitting and receiving chip can realize the reception of GPRS signal and the parsing of transmission and GPRS signal.
Described STM32F205 CPU is connected to be responsible for the transmitting and scheduling of carrier signal and GPRS signal with described carrier signal transceiving chip with described GPRS transceiving chip, thereby realizes the stable transfer of signal between basement and internet.Wherein, described STM32F205 CPU is a MCU chip of ST company, and it is 32 single-chip microcomputers, 100MHZ dominant frequency, 512K FLASH, 128K SRAM.In the present invention, under the transmitting and scheduling of described STM32F205 CPU, can realize exchange and stable transfer between the carrier signal data of meter-copy collector and the GPRS signal data of electricity meter-reading central server, thereby solve the GPRS covering problem that existing meter-copy collector exists.
When the concrete GPRS repeater that uses power remote meter reading system of the present invention, as shown in Figure 2, described GPRS repeater is connected to the meter-copy collector under same transformer by line of electric force, and the GPRS antenna of described GPRS repeater is placed on to outdoor or GPRS signal covers good region.In the time that needs are checked meter, electricity meter-reading central server sends amr message by internet, and by described GPRS antenna reception the data from described electricity meter-reading central server, after data, be transferred to described GPRS signal transmitting and receiving chip via described GPRS interface at described GPRS antenna reception.Described GPRS signal transmitting and receiving chip is resolved it after receiving described data, data after parsing are transferred to described carrier signal transceiving chip by the serial ports of described STM32F205 CPU, be transferred to meter-copy collector by described carrier signal transceiving chip by described carrier interface and line of electric force again, thereby realize assigning of the task of checking meter.After described meter-copy collector receives data, start to check meter.After treating that described meter-copy collector collects meter reading data, send carrier communication information by its local carrier module, and by line of electric force and described carrier interface, described carrier communication communication is arrived to described carrier signal transceiving chip.After described carrier signal transceiving chip receives carrier signal, it is resolved carrier signal, carrier signal after parsing is transferred to described GPRS signal transmitting and receiving chip by the serial ports of described STM32F205 CPU, be transferred to described GPRS antenna via described GPRS interface again, by described GPRS antenna by internet transmission to electricity meter-reading central server, thereby realize uploading of meter reading data.
The carrier information that this GPRS repeater can send meter-copy collector is resolved and long-range transmitting-receiving, it is for " 376.1 communications protocol " communication criterion that meets power industry company standard, make meter-copy collector send carrier communication information by local carrier module, after receiving carrier signal, GPRS repeater under same transformer resolves, and it is transferred on internet by GPRS signal transmitting and receiving chip, or GPRS signal transmitting and receiving chip receives and from the data on internet, it is resolved, and component carrier data are sent to meter-copy collector, realize accordingly the long-range GPRS function of concentrator, solve GPRS signal problem.GPRS repeater and meter-copy collector, under same transformer, carry out data transmission by carrier signal, and GPRS repeater is handed over to CPU and identified with GPRS and transmit after receiving after carrier signal, being parsed; GPRS signal transmitting and receiving chip is receiving after the data of internet, transfer to CPU to process and go to carrier chip, transfer to concentrator by carrier chip, through above-mentioned steps, realize GPRS signal to carrier signal, arrive again the whole transmitting procedure of concentrator, solved preferably the difficult problem that Urban Residential District basement GPRS signal cannot cover.
The content of embodiment is understood for the ease of those skilled in the art and is used the present invention and describing, and does not form the restriction of the present invention being protected to content.Those skilled in the art, after having read content of the present invention, can carry out suitable amendment to the present invention.Protection content of the present invention is as the criterion with the content of claim.In the case of the flesh and blood and protection domain that do not depart from claim, various amendments, change and replacement etc. that the present invention is carried out are all within protection scope of the present invention.
Claims (3)
1. the GPRS repeater of a power remote meter reading system, it comprises a STM32F205 CPU, a carrier signal transceiving chip, a GPRS transceiving chip, a carrier interface, a GPRS interface, a GPRS antenna, a 220V AC power interface, the carrier communication pilot lamp pilot lamp of communicating by letter with a GPRS, wherein, described carrier signal transceiving chip is connected with the meter-copy collector under same transformer with line of electric force by described carrier interface, described GPRS transceiving chip is connected with described GPRS antenna by described GPRS interface, whether described carrier communication pilot lamp is connected to indicate described carrier signal transceiving chip at receiving and transmitting signal with described carrier signal transceiving chip, whether described GPRS communication pilot lamp is connected to indicate described GPRS transceiving chip at receiving and transmitting signal with described GPRS transceiving chip, described 220V AC power interface is used for connecting 220V AC power to provide power for operation to this GPRS repeater, described STM32F205 CPU and described carrier signal transceiving chip and described GPRS transceiving chip are connected to be responsible for the transmitting and scheduling of carrier signal and GPRS signal, thereby realize the stable transfer of signal between meter-copy collector and the internet of basement.
2. the GPRS repeater of power remote meter reading system as claimed in claim 1, wherein, described carrier signal transceiving chip is DM2020 dual-mode chip.
3. the GPRS repeater of power remote meter reading system as claimed in claim 2, wherein, described GPRS transceiving chip is Thyrite GL868-DUAL module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201410474303.7A CN104200634A (en) | 2014-09-18 | 2014-09-18 | GPRS (General Packet Radio Service) relay of remote ammeter reading system |
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| CN201410474303.7A CN104200634A (en) | 2014-09-18 | 2014-09-18 | GPRS (General Packet Radio Service) relay of remote ammeter reading system |
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| CN105450283A (en) * | 2015-12-05 | 2016-03-30 | 国网浙江省电力公司丽水供电公司 | GPRS (General Packet Radio Service) signal amplifier |
| CN105719471A (en) * | 2016-03-29 | 2016-06-29 | 国网上海市电力公司 | Concentrator GPRS (general packet radio service) signal extender |
| CN106230111A (en) * | 2016-03-29 | 2016-12-14 | 国网上海市电力公司 | A kind of method utilizing power line carrier monitoring power information |
| CN109450514A (en) * | 2018-11-15 | 2019-03-08 | 国网浙江宁波市鄞州区供电有限公司 | A kind of mobile communication relay based on low pressure carrier wave |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109450514A (en) * | 2018-11-15 | 2019-03-08 | 国网浙江宁波市鄞州区供电有限公司 | A kind of mobile communication relay based on low pressure carrier wave |
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Application publication date: 20141210 |