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Decoding method and device for communications protocol

A communication protocol and decoding device technology, which is applied in the field of communication protocol decoding, can solve problems such as unsatisfactory, limited equipment selection range, etc.

Inactive Publication Date: 2003-11-19
邵文远
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For better communication receivers, decoders often have multi-protocol functions, but they cannot meet the protocols of all manufacturers, which makes system integration companies or engineering companies only choose devices with the same communication protocol, which greatly limits their choice of devices scope

Method used

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  • Decoding method and device for communications protocol
  • Decoding method and device for communications protocol
  • Decoding method and device for communications protocol

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] control figure 1 , figure 2 , K8 in communication baud rate setting circuit 1 adopts DIP4 switch, and K7 in device address setting circuit 2 adopts DIP8. According to the communication baud rate of the communication transmitter, the switch position of DIP4 is determined, and then the device address is set according to the actual needs of the user, so as to determine the switch position of DIP8, and the switch position of DIP8 can be selected by manually turning K7 and K8. The two-state signals set above are latched by the latch chips IC5 and IC7, and stored in the memory IC6 after being read by the single-chip microcomputer IC1, and the decoder chip IC8A selects a certain chip among IC4, IC5, IC6, and IC7 Work, while prohibiting other chips to work, its selection is realized through the control of the 2nd and 3rd pins of IC8A by the single-chip microcomputer IC1. At the same time, only one of IC4, IC5, IC6, and IC7 can be selected to work, and the device address code...

Embodiment 2

[0042] The inventive device that this embodiment relates to is exactly the same as Embodiment 1, and the setting of its communication speed code and control equipment address code is also identical with Embodiment 1, and its control equipment is the camera head of video camera, and through the serial data wire pair It controls.

[0043] The communication protocol of the communication transmitter of the present embodiment is:

[0044] Upper: 0X01, 0X02,

[0045] Down: 0X01, 0X03

[0046] Left: 0X01, 0X04

[0047] Right: 0X01, 0X05

[0048] Stop: 0X01, 0X06

[0049] Autofocus: 0Xc5, 0XAA, 0X58, 0X00, 0X00, 0XC7

[0050] Auto iris: 0XC5, 0XAA, 0X66, 0X00, 0X00, 0XBF

[0051] Call preset position: 0X02, 0X01

[0052] Set preset position: 0X03, 0X02

[0053] Same as the previous example, the PC is connected with the device of the present invention with the double-wire half-duplex data line, the decoder initialization program is run under the Windows operating system of the ...

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Abstract

The invention relates to the method and device for decoding any communication protocol of communication senter. The method includes the prearranged read / write storage unit, the connection PC and decoding device and the memory for writing communication protocol to the decoding device. The device includes the single chip and the circuit for setting baud rate. The circuit for setting address, the communication circuit, memory and control circuit etc. The communication circuit including the transmission communication protocol transfer signals: the electric analog quantity caused by rotation of the cradle head, the signal for controlling camera a lens, and the signal for controlling the movement of the lens.

Description

technical field [0001] The present invention relates to a method and a device for decoding a communication protocol, more specifically to a method and a device for decoding an arbitrary communication protocol of a communication transmitter. Background technique [0002] At present, manufacturers of security equipment set up communication protocols when producing communication transmitters (such as matrix machines, computers) or communication receivers (such as controllable pan / tilts and cameras) out of the need to protect their own interests. These protocols often incompatible. For better communication receivers, decoders often have multi-protocol functions, but they cannot meet the protocols of all manufacturers, which makes system integration companies or engineering companies only choose devices with the same communication protocol, which greatly limits their choice of devices scope. Contents of the invention [0003] The object of the present invention is to propose ...

Claims

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Application Information

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IPC IPC(8): G08C17/02H03M13/00H04L29/06
Inventor 邵文远
Owner 邵文远
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