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Main node circuit for plastic optical fiber communication

A technology of plastic optical fiber and main node, applied in the field of electric energy information collection system, can solve the problems of large space, high cost, weak anti-electromagnetic interference ability, etc., and achieve the effect of promoting application

Inactive Publication Date: 2015-02-11
SHENZHEN UNION OPTICAL COMM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Obviously, this kind of design takes up a lot of PCB space, has weak anti-electromagnetic interference ability, many design and production links, and high cost.

Method used

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  • Main node circuit for plastic optical fiber communication
  • Main node circuit for plastic optical fiber communication
  • Main node circuit for plastic optical fiber communication

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Experimental program
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Embodiment Construction

[0024] The present invention will be further elaborated below in conjunction with the accompanying drawings.

[0025] see figure 1 and figure 2 , when the present invention constructs a plastic optical fiber communication system, both the master node and the slave node are equipped with a dual-channel photoelectric transceiver interface, that is to say, each node includes two light-emitting diodes 111, 112 for sending optical signals , and includes two photosensitive devices 113, 114 for receiving light signals.

[0026] Implementation one

[0027] The present invention proposes a master node circuit 20 for plastic optical fiber communication, see image 3 , which includes integrated: a control unit 201, which includes an 80c51 microprocessor core; a storage unit 202, which includes a 16K byte flash memory, a 1 / 2K byte Flash data memory, and a 1 / 2K byte SRAM And 256 bytes of RAM space; a time base circuit unit 203, used to provide the control unit clock reference and NRZ ...

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PUM

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Abstract

The invention provides a main node circuit for plastic optical fiber communication. The main node circuit is formed through integral integration, and comprises a control unit, a storage unit, a coding and decoding unit and a driving output unit, wherein the control unit comprises a microprocessor kernel, the coding and decoding unit is used for coding digital signals into coding signals transmitted in a light path according to programming, the driving output unit is used for providing driving current during signal sending, and the driving current size can be programmed. The main node circuit can promote the plastic optical fiber communication application.

Description

technical field [0001] The invention relates to an information collection system for public utilities, in particular to an electric energy information collection system. Background technique [0002] The power information collection system usually adopts a master-slave communication network. After more than 20 years of development, the system currently has three communication methods: low-voltage power carrier communication, RS485 bus communication, and short-distance wireless communication. However, these three communication methods have relatively serious defects. The low-voltage power carrier communication has insufficient real-time stability, the RS485 bus communication has weak anti-electromagnetic interference and anti-lightning strike capabilities, and short-distance wireless communication is easily affected by weather changes and buildings. Obviously, none of these three technical means can meet the requirements of real-time, stable and highly reliable communication...

Claims

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Application Information

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IPC IPC(8): H04B10/40G08C23/06
Inventor 杨泽清
Owner SHENZHEN UNION OPTICAL COMM CO LTD
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