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Address code identification method and device based on optical fiber serial communication and application of address code identification method and device

A technology of serial communication and identification method, applied in the field of communication, can solve the problems that traditional serial communication does not have the conditions for use, the address code of the sub-controller is prone to errors, etc., and achieves the effect of preventing the occurrence of abnormal setting errors and saving costs.

Active Publication Date: 2021-11-12
BIG PAWER ELECTRICAL TECH XIANGYANG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The problem solved by the present invention is: the traditional serial communication does not have the conditions of use in a high-voltage isolation environment and manual setting of the sub-controller address code is prone to errors

Method used

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  • Address code identification method and device based on optical fiber serial communication and application of address code identification method and device
  • Address code identification method and device based on optical fiber serial communication and application of address code identification method and device
  • Address code identification method and device based on optical fiber serial communication and application of address code identification method and device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0050] Provides an address code identification method based on fiber optic serial communication, such as figure 1 As shown, including the following steps:

[0051] S1. Use fiber to connect 1 master and multiple controllers;

[0052] S2. Serial communication between the 1 master and multiple divisors;

[0053] When power-on, the master transmits the address code check command for address code check, and the address code of each divider is stored in the communication control chip inside each of the controllers;

[0054] S4. The address code checks correctly, performs other control commands; when the address code check is abnormal, perform the address level weight setting command as needed.

[0055] Wherein, the serial communication shares one serial data channel; the serial communication communicates with a division multiplexing method. Time Division Multiplexing, TDM, is a different time period with the same physical connection to transmit different signals, which can reach the pur...

Embodiment 2

[0110] Providing an apparatus which uses a method based on the address code identifying a fiber optic serial communication as the embodiment, as Figure 4 Shown, wherein the apparatus comprises a main controller (referred to as the master, the address code is executed test reset address code, the master device delivers a control command), a plurality of sub-controllers (referred to as sub-controller , assist master address code verification is completed, reset address code, the master control command execution passive devices) and an optical fiber (a communication medium between the master and the sub-controller, the sub-controller sub-controller ), and the sub master controller, and between the sub-controller sub-controller connected to the optical fiber through serial communication.

[0111] The master Tx (transmission light mode, is responsible for forwarding the electrical signal into an optical signal so that the signal transmitted over the fiber) of a sub-controller connected...

Embodiment 3

[0115] The embodiment provides an optical fiber-based serial communication application according to a method according to address code recognition, wherein the method is applied to high voltage inverter bypass control unit in use.

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Abstract

The invention provides an address code identification method and device based on optical fiber serial communication and application of the address code identification method and device. The address code identification method comprises the following steps: S1, connecting a master controller and a plurality of sub-controllers through optical fibers; S2, carrying out serial communication between the main controller and the plurality of sub-controllers; S3, during power-on, the main controller sending an address code checking command to check the address codes, and storing the address codes of all the sub-controllers in communication control chips in all the sub-controllers; S4, when the address code is checked to be correct, executing other control commands; and when the address code verification is abnormal, executing an address code resetting command as required. According to the invention, serial communication is carried out between the main controller and each sub-controller by using optical fiber connection, and the system can be applied to occasions requiring high-voltage isolation, such as unit bypass control of a high-voltage frequency converter and the like; the sub-controllers can be replaced at will, address codes of the sub-controllers do not need to be managed, the cost of manually setting the address codes is saved, and the abnormity of setting errors of the address codes is prevented.

Description

Technical field [0001] The present invention relates to the field of communication technology, particularly, to a fiber optic based serial communication address code recognition method, device and application. Background technique [0002] Serial communication technology, means communicating parties by bit, to comply with a means of communication timing. Serial communication, data transmission bit sequence, each bit of data occupies a fixed length of time, to use a small number of communication lines can be done several information exchange between systems, and is particularly applicable to computer between computers, computer peripherals and the telecommunications. Serial communication used for inter-system communication (multi-master control systems), serial transmission between the inter-device (master device and accessory device), between the device (the main CPU function chip) data transmission and sharing of data to achieve . [0003] Conventional serial communication schem...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L29/12H04B10/25
CPCH04B10/25H04L61/5038H04L2101/645Y02P90/02
Inventor 刘圣义赵珊杨培新余磊张昱科马静雄
Owner BIG PAWER ELECTRICAL TECH XIANGYANG