CN202978945U - Three-phase electric energy meter communication module based on optical fiber communication mode - Google Patents
Three-phase electric energy meter communication module based on optical fiber communication mode Download PDFInfo
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- CN202978945U CN202978945U CN 201220657836 CN201220657836U CN202978945U CN 202978945 U CN202978945 U CN 202978945U CN 201220657836 CN201220657836 CN 201220657836 CN 201220657836 U CN201220657836 U CN 201220657836U CN 202978945 U CN202978945 U CN 202978945U
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Abstract
The utility model discloses a three-phase electric energy meter communication module based on an optical fiber communication mode. The three-phase electric energy meter communication module comprises a three-phase electric energy meter, optical fiber, a photoelectric conversion integration module, a power supply circuit, a WDT circuit, a level conversion circuit and an interface circuit. The three-phase electric energy meter communication module realizes mutual conversion of an electrical signal at an end of the three-phase electric energy meter and an optical signal, and data transmission is realized through the optical fiber, so data interaction between the end of the three-phase electric energy meter in an optical communication network and a main meter reading station is realized. The three-phase electric energy meter communication module meets requirements of communication module design in national electrical network company three-phase electric energy meter type specifications and has properties of simple structure, small volume, low cost and convenient use.
Description
Technical field
The utility model relates to a kind of three-phase electric energy meter communication module, particularly a kind of three-phase electric energy meter communication module based on the optical fiber communication mode.
Background technology
The optical fiber communication mode has that transmission speed is fast, communication distance is far away and the advantage such as antijamming capability is strong, is highly suitable for communication of power system.For improving the Automation of Electric Systems degree, power system telecommunications technology is the emphasis of power industry research always.Current relatively ripe power communication mode mainly contains power line carrier communication, RS485 communication and small wireless and communicates by letter three kinds, these communication modes exist all that transmission speed is slow, antijamming capability is strong and the shortcoming such as communication distance is nearer, can not satisfy more and more higher power communication demand.
The utility model content
The purpose of this utility model is to provide a kind of simple and reliable three-phase electric energy meter communication module based on the optical fiber communication mode.
this three-phase electric energy meter communication module based on the optical fiber communication mode that the utility model provides, comprise three-phase electric energy meter, optical fiber, the opto-electronic conversion integration module, power circuit, the WDT circuit, level shifting circuit and interface circuit, the opto-electronic conversion integration module is connected with optical fiber, the signal of telecommunication that level shifting circuit is transmitted is converted to light signal and is sent on optical fiber, and will convert the signal of telecommunication to from optical fiber transmission light signal extremely and be sent to again level shifting circuit, provide simultaneously feeding-dog signal to the WDT circuit, the WDT circuit receives the feeding-dog signal from the opto-electronic conversion integration module, control the conducting of power circuit and close, power circuit will be changed by the power supply signal that interface circuit transmits, provide power supply for the opto-electronic conversion integration module again, simultaneously it being enabled control end is connected with the WDT circuit, level shifting circuit is implemented level match with the signal of telecommunication that the opto-electronic conversion integration module transmits, reach again interface circuit, and the signal of telecommunication enforcement level match that interface circuit transmits is reached the opto-electronic conversion integration module again, interface circuit reaches three-phase electric energy meter with the signal of telecommunication that level shifting circuit transmits, and the signal of telecommunication that three-phase electric energy meter spreads out of is reached level shifting circuit, to reach power circuit by the power supply signal that three-phase electric energy meter provides simultaneously.
Described WDT circuit adopts the chip of TI company, and its model is 74HC4060, and this circuit is managed the ruuning situation of MCU program by counting mode.
The utility model satisfies the Communication Module Design requirement in State Grid Corporation of China's three-phase electric energy meter pattern standard, can complete the mutual conversion of the three-phase electric energy meter end signal of telecommunication and light signal, and data are transmitted by optical fiber, thereby realize three-phase electric energy meter end in Networks of Fiber Communications and the data interaction between main website of checking meter.The utility model is simple in structure, volume is little, cost is low, easy to use.
Description of drawings
Fig. 1 is theory diagram of the present utility model.
Fig. 2 is opto-electronic conversion integration module logic diagram of the present utility model.
Fig. 3 is power circuit diagram of the present utility model.
Fig. 4 is WDT circuit diagram of the present utility model.
Fig. 5 is level shifting circuit figure of the present utility model.
Fig. 6 is interface circuit figure of the present utility model.
Embodiment
The utility model is used for three-phase electric energy meter, completes collection and the transmitting-receiving of three-phase electric energy meter end data, by the signal of telecommunication and light signal are changed mutually, thereby realizes the transmission of mode optical signal.Light signal is to transmit in standard bandwidth 0.5 ± 0.05NA scope, and its communication pattern adopts semiduplex mode, realizes the transmitted in both directions of data by simple optical fiber, can be used in three-phase electric energy meter information data collecting device.
As shown in Figure 1, the utility model comprises three-phase electric energy meter, optical fiber, opto-electronic conversion integration module, power circuit, WDT circuit, level shifting circuit and interface circuit, the opto-electronic conversion integration module is connected with optical fiber, the signal of telecommunication that level shifting circuit is transmitted is converted to light signal and is sent on optical fiber, and will convert the signal of telecommunication to from optical fiber transmission light signal extremely and be sent to again level shifting circuit, provide simultaneously feeding-dog signal to the WDT circuit.the WDT circuit receives the feeding-dog signal from the opto-electronic conversion integration module, control the conducting of power circuit and close, power circuit will be changed by the power supply signal that interface circuit transmits, provide power supply for the opto-electronic conversion integration module again, simultaneously it being enabled control end is connected with the WDT circuit, level shifting circuit is implemented level match with the signal of telecommunication that the opto-electronic conversion integration module transmits, reach again interface circuit, and the signal of telecommunication enforcement level match that interface circuit transmits is reached the opto-electronic conversion integration module again, interface circuit reaches three-phase electric energy meter with the signal of telecommunication that level shifting circuit transmits, and the signal of telecommunication that three-phase electric energy meter spreads out of is reached level shifting circuit, to reach power circuit by the power supply signal that three-phase electric energy meter provides simultaneously.
As shown in Figure 2, it is the opto-electronic conversion integration module of ECOM-650S1 that opto-electronic conversion integration module of the present utility model can adopt model, it is divided into opticator and electric part, its simple workflow is as follows: 1) when opticator received light signal from optical fiber, opticator was converted into light signal the signal of telecommunication and sends into electric part; 2) electric part is decoded to signal, and processing is rear sends to three-phase electric energy meter by the DATA OUT pin in interface; 3) electric part by the data of DATA IN pin reception from three-phase electric energy meter, is encoded and the drive level conversion; 4) signal of telecommunication of opticator self-driven circuit in future is converted to light signal, and sends by optical fiber.
As shown in Figure 3, power circuit adopts the LDO chip of band control ena-bung function in master chip XC6204 series, and the 5V DC power supply that three-phase electric energy meter is provided is converted to the required 3.3V DC power supply of the utility model, and wherein PIN3 is power enable control inputs pin.
As shown in Figure 4, the WDT circuit is the feeding-dog signal that provides by opto-electronic conversion IC, adopts the mode of counting control the conducting of power circuit and close.WDT circuit diagram of the present utility model has adopted one 4 binary system asynchronous counter chips, and its model is 74HC4060.During use, at the upper feeding-dog signal that the opto-electronic conversion integration module sends over, the power conversion chip in one of the upper output of its Q14 pin (reset terminal) enables to control signal to power circuit of receiving of the RST of this chip pin (feeding the dog end).In the normal operation of opto-electronic conversion integration module, export at set intervals a signal to feeding the dog end, give the zero clearing of WDT circuit.Do not feed dog (generally when program fleet) if surpass official hour, timer counter in the WDT circuit overflows, this moment, the WDT circuit can be exported a reset signal on its Q14 pin, made the power conversion chip power down in power circuit, thereby realized whole communication module power-off reset function.
As shown in Figure 5, level shifting circuit is used for completing the level match of the signal of telecommunication, and the one end is connected with the opto-electronic conversion integration module, and its other end is connected with the three-phase electric energy meter serial ports.TXD signal and RXD signal are one group of rs 232 serial interface signal on three-phase electric energy meter, Rdata Out signal and Tdata In signal are one group of rs 232 serial interface signal on the opto-electronic conversion integration module, and these the two groups of rs 232 serial interface signals conducting by two triodes and cut-off are respectively realized coupling conversion between level.
As shown in Figure 6, interface circuit of the present utility model is used for realizing the hardware slitless connection of the utility model and three-phase electric energy meter.This partial circuit is the interface circuit of the utility model and three-phase electric energy meter, adopts pluggable contact pin to connect, and its pinout satisfies " the company standard Q/GDW356-2009 of State Grid Corporation of China: three-phase intelligent electric-energy meter formal Specification " fully.
In use, the utility model adopts plug-in connected mode and electric energy meter etc. to be connected.
Claims (2)
1. three-phase electric energy meter communication module based on the optical fiber communication mode, comprise three-phase electric energy meter and optical fiber, it is characterized in that, also comprise the opto-electronic conversion integration module, power circuit, the WDT circuit, level shifting circuit and interface circuit, the opto-electronic conversion integration module is connected with optical fiber, the signal of telecommunication that level shifting circuit is transmitted is converted to light signal and is sent on optical fiber, and will convert the signal of telecommunication to from optical fiber transmission light signal extremely and be sent to again level shifting circuit, provide simultaneously feeding-dog signal to the WDT circuit, the WDT circuit receives the feeding-dog signal from the opto-electronic conversion integration module, control the conducting of power circuit and close, power circuit will be changed by the power supply signal that interface circuit transmits, provide power supply for the opto-electronic conversion integration module again, simultaneously it being enabled control end is connected with the WDT circuit, level shifting circuit is implemented level match with the signal of telecommunication that the opto-electronic conversion integration module transmits, reach again interface circuit, and the signal of telecommunication enforcement level match that interface circuit transmits is reached the opto-electronic conversion integration module again, interface circuit reaches three-phase electric energy meter with the signal of telecommunication that level shifting circuit transmits, and the signal of telecommunication that three-phase electric energy meter spreads out of is reached level shifting circuit, to reach power circuit by the power supply signal that three-phase electric energy meter provides simultaneously.
2. the three-phase electric energy meter communication module based on the optical fiber communication mode according to claim 1, is characterized in that, described WDT circuit adopts the chip of TI company, and its model is 74HC4060, and this circuit is managed the ruuning situation of MCU program by counting mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220657836 CN202978945U (en) | 2012-12-04 | 2012-12-04 | Three-phase electric energy meter communication module based on optical fiber communication mode |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220657836 CN202978945U (en) | 2012-12-04 | 2012-12-04 | Three-phase electric energy meter communication module based on optical fiber communication mode |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202978945U true CN202978945U (en) | 2013-06-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220657836 Expired - Lifetime CN202978945U (en) | 2012-12-04 | 2012-12-04 | Three-phase electric energy meter communication module based on optical fiber communication mode |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116192263A (en) * | 2023-04-25 | 2023-05-30 | 济南莱兴信息科技有限公司 | Synchronous two-way optical fiber modem and aviation control signal transmission system and method |
-
2012
- 2012-12-04 CN CN 201220657836 patent/CN202978945U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116192263A (en) * | 2023-04-25 | 2023-05-30 | 济南莱兴信息科技有限公司 | Synchronous two-way optical fiber modem and aviation control signal transmission system and method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 410205 No. 468 west slope, Changsha hi tech Industrial Development Zone, Changsha, Hunan, Yuelu District, Tongzi Patentee after: WILLFAR INFORMATION TECHNOLOGY Co.,Ltd. Address before: 410205 No. 468 west slope, Changsha hi tech Industrial Development Zone, Changsha, Hunan, Yuelu District, Tongzi Patentee before: HUNAN WEISHENG INFORMATION TECHNOLOGY CO.,LTD. Address after: 410205 No. 468 west slope, Changsha hi tech Industrial Development Zone, Changsha, Hunan, Yuelu District, Tongzi Patentee after: HUNAN WEISHENG INFORMATION TECHNOLOGY CO.,LTD. Address before: 410205 No. 468 west slope, Changsha hi tech Industrial Development Zone, Changsha, Hunan, Yuelu District, Tongzi Patentee before: CHANGSHA WASION INFORMATION TECHNOLOGY Co.,Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130605 |