CN203104450U - Fiber communication converter applied to intelligent electric meter - Google Patents
Fiber communication converter applied to intelligent electric meter Download PDFInfo
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- CN203104450U CN203104450U CN 201220593470 CN201220593470U CN203104450U CN 203104450 U CN203104450 U CN 203104450U CN 201220593470 CN201220593470 CN 201220593470 CN 201220593470 U CN201220593470 U CN 201220593470U CN 203104450 U CN203104450 U CN 203104450U
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- electric meter
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- intelligent electric
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Abstract
The utility model discloses a fiber communication converter applied to an intelligent electric meter. The fiber communication converter applied to intelligent electric meter comprises a processor, a power source conversion chip, an FLASH memory, a level conversion circuit and a communication interface, wherein the power source conversion chip is connected with the processor and the FLASH memory for providing a work voltage, the processor is further connected with the FLASH memory and the level conversion circuit, and the communication interface is further connected with the level conversion circuit. A plurality of types of communication protocols are embedded into the fiber communication converter, and the fiber communication converter can carry out protocol parsing, conversion and response on the received data according to certain requirements, can further convert a fiber input signal into a marked UART signal for communicating with the electric meter, can further convert the fiber input signal into an RS485 signal for reading data of a suspension meter and can further convert the fiber input signal into an RS232 serial port signal or an Ethernet port signal for communicating with a computer.
Description
Technical field
The utility model relates to the electric power system Electric Measurement Technology, more particular words it, the utility model relates to a kind of optical-fibre communications transducer that is applied to intelligent electric meter.
Background technology
According to the intelligent grid development plan that national grid is announced, China entered the all-round construction stage in 2011 to 2015, greatly develop FTTH (Fiber to the home), progressively realized the household electrical appliance online, the intellectuality of electricity consumption sub-district.Intelligent electric energy meter is being brought into play irreplaceable effect as the interactive good media of intelligent grid and the access point of thing connection terminal in the intelligent grid construction, important Research Significance is arranged.Communication system is as the important component part of intelligent electric meter system, is responsible for the transmission of information processing, order and returns, and the quality of its performance has decisive influence to the realization and the operational reliability of whole system.
Intelligent electric meter adopts RS485 mostly at present, means of communication such as GPRS, compare with these access technologies, optical fiber communication has possessed the advantage of Ethernet and PON (passive light communication network) simultaneously, has that transmission capacity is big, transmission quality is high, transmission range is long, reliability is high and advantage such as anti-electromagnetic interference.In addition, more existing optical fiber communication functions of modules interfaces are more single at present, do not have translation-protocol, can not satisfy the concrete application of intelligent electric meter.
The utility model content
The utility model is intended to solve the defective that prior art exists, design a kind of multi-protocols multifunctional optical fiber communication signal converter that is applied to intelligent electric meter, it can embedded multiple kinds, the data of receiving can be carried out protocol analysis, conversion, response according to certain requirement, it also can be converted to the optical fiber input signal UART signal of souvenir in addition, be used for and show meter communicating, also can be converted to the RS485 signal and be used for pocket watch data under the copy reading, also can be converted into RS232 rs 232 serial interface signal or Ethernet network interface signal, be used for and compunication.
In order to realize above-mentioned purpose of design, the utility model adopts following technical scheme: a kind of optical-fibre communications transducer that is applied to intelligent electric meter, it comprises processor, power conversion chip, FLASH memory, level shifting circuit and communication interface, wherein said power conversion chip is connected so that operating voltage to be provided with processor, power conversion chip and FLASH memory, described processor further connects FLASH memory and level shifting circuit, and described communication interface further is connected to level shifting circuit.
Further, in preferred embodiment of the present utility model, described communication interface comprises EPON interface, Ethernet interface, UART interface, RS232 interface and RS485 interface.
Further, in preferred embodiment of the present utility model, further comprise a watchdog chip MAX6866, it is connected to power conversion chip, and inserts between level shifting circuit and the communication interface.
The beneficial effects of the utility model are conspicuous, the utility model can embedded multiple kinds, the data that it can be received are carried out protocol analysis, conversion, response according to certain requirement, it also can be converted to the optical fiber input signal UART signal of souvenir in addition, be used for and show meter communicating, also can be converted to the RS485 signal and be used for pocket watch data under the copy reading, also can be converted into RS232 rs 232 serial interface signal or Ethernet network interface signal, be used for and compunication.
Description of drawings
Preferred implementation of the present utility model will be following by embodying with reference to the mode of accompanying drawing in detail, and the identical function components/modules among the figure is with same-sign mark in addition, wherein
Fig. 1 is the structured flowchart of the utility model optical-fibre communications transducer.
Embodiment
With reference to Fig. 1, preferred embodiment of the present utility model comprises processor 1, power conversion chip 2, FLASH memory 3, level shifting circuit 4 and communication interface 5, wherein power conversion chip 2 is connected so that operating voltage to be provided with processor 1, power conversion chip 2 and FLASH memory 3, processor 1 further connects FLASH memory 3 and level shifting circuit 4, and communication interface 5 further is connected to level shifting circuit 4.
In preferred embodiment of the present utility model, power conversion chip 2 is connected to the voltage end of ammeter single-chip microcomputer, or is directly connected in electric network power line, and line voltage is converted to the operating voltage that converter system is provided, and under the situation, operating voltage is 5V usually.Level shifting circuit 4 is selected the 74LVC245A chip for use, the UART TD of connection processing device 1 and UART RD serial ports, and can with routine+the 5V voltage transitions be interface 5+3V voltage.
Further, in preferred embodiment of the present utility model, communication interface 5 comprises EPON interface, Ethernet interface, UART interface, RS232 interface and RS485 interface.Because the operating voltage of the preferred EPON interface of the utility model and UART interface may be+3V, therefore can not directly it be connected in series to the serial ports of processor 1 effect of a change-over circuit 4 of needs.
Further, in preferred embodiment of the present utility model, further comprise a watchdog chip MAX6866, it is connected to power conversion chip 2, and inserts between level shifting circuit 4 and the communication interface 5, is used for that communication data is carried out encryption and decryption and handles.
Being preferred implementation of the present utility model only below, being intended to embody outstanding technique effect of the present utility model and advantage, is not to be restriction to the technical solution of the utility model.Those skilled in the art will appreciate that all modifications of being made based on the utility model technology contents, variation or substitute technology feature, all should be covered by in the technology category of the utility model claims opinion.
Claims (3)
1. optical-fibre communications transducer that is applied to intelligent electric meter, it is characterized in that: comprise processor (1), power conversion chip (2), FLASH memory (3), level shifting circuit (4) and communication interface (5), wherein said power conversion chip (2) is connected so that operating voltage to be provided with processor (1), power conversion chip (2) and FLASH memory (3), described processor (1) further connects FLASH memory (3) and level shifting circuit (4), and described communication interface (5) further is connected to level shifting circuit (4).
2. the optical-fibre communications transducer that is applied to intelligent electric meter according to claim 1 is characterized in that: described communication interface (5) comprises EPON interface, Ethernet interface, UART interface, RS232 interface and RS485 interface.
3. the optical-fibre communications transducer that is applied to intelligent electric meter according to claim 1, it is characterized in that: further comprise a watchdog chip MAX6866, it is connected to power conversion chip (2), and inserts between level shifting circuit (4) and the communication interface (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220593470 CN203104450U (en) | 2012-11-12 | 2012-11-12 | Fiber communication converter applied to intelligent electric meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220593470 CN203104450U (en) | 2012-11-12 | 2012-11-12 | Fiber communication converter applied to intelligent electric meter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203104450U true CN203104450U (en) | 2013-07-31 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220593470 Expired - Fee Related CN203104450U (en) | 2012-11-12 | 2012-11-12 | Fiber communication converter applied to intelligent electric meter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203104450U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111856119A (en) * | 2020-08-24 | 2020-10-30 | 上海煜闻电子科技有限公司 | Leakage current detection device and detection method |
-
2012
- 2012-11-12 CN CN 201220593470 patent/CN203104450U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111856119A (en) * | 2020-08-24 | 2020-10-30 | 上海煜闻电子科技有限公司 | Leakage current detection device and detection method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130731 Termination date: 20131112 |