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A communication transceiving method for identifying data by width

A technology for data identification and communication sending and receiving. It is applied in digital transmission system, electrical components, and error prevention. It can solve problems such as laser communication difficulties and difficulty in obtaining a second channel to transmit a synchronous clock. It achieves high anti-interference ability, high bandwidth, The effect of high channel quality

Active Publication Date: 2019-06-25
BEIJING AN GUANG INFO TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Laser communication has great difficulties due to its inherent single channel, and it is difficult to obtain a second channel to transmit a synchronous clock

Method used

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  • A communication transceiving method for identifying data by width
  • A communication transceiving method for identifying data by width
  • A communication transceiving method for identifying data by width

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Embodiment Construction

[0015] Laser communication is characterized by a one-to-one mode without pre-negotiated short messages, and there is a set of coding schemes applicable to laser lines, which realizes highly reliable laser communication. The key points of the scheme are (a) set it as an 8-bit code line, (b) use 0X7E [0111 1110] as the padding code, (c) use command words, such as 0XFE, to manage the channel and coordinate the rate, (d) use 5 Insert retrofit. The high reliability of laser communication means that the bit error rate is better than 10 -13 , and redundant code checking can be used in communication.

[0016] Messages should be transmitted continuously during transmission until the end of a message. There must be padding codes between different packets.

[0017] Example of signal width measurement and recording: such as figure 2 . The 16-bit word length, the width of the "0" signal, the width of the "1" signal, ... are arranged in this order. They are 0X040B, 0X0C41, 0X040B, .....

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Abstract

The invention relates to a communication transceiving method for identifying data by width, and the discussed object is the most basic transceiving method for data communication. An existing synchronization principle of a data line and a clock line is adopted, and if the clock line is removed, can synchronization be achieved According to the invention, when the problem that laser communication suffers from unprecedented difficulties is solved, the valuable communication transceiving method for identifying data by using the width is obtained. Laser is a natural single channel, and no clock line exists at all. Due to the synchronization-free clock characteristic of a width method, the difficulty of direct connection of network remote lines to home is effectively solved, the telephone, the television, the data and the Internet of Things can be fused, and the defects of the Internet technology can be greatly eliminated. The underwater laser communication is successful due to the width method, and the key underwater communication problem of ocean development is solved.

Description

Technical field: [0001] The present invention relates to the most basic communication receiving method, referred to as "width method" for short, which stands for "communication sending and receiving method for identifying data by width". Width refers to the duration width of a continuous signal. From the moment when the signal on the data line is received from low to high to "1", or from high to low to "0", until the next transition, as the width of the continuous signal, it is judged that the width is continuous After the signal is several "1" or several "0", the content of the sender's data is known. The traditional method relies on clock positioning to read whether the value of the signal on the data line at the moment is "1" or "0" to receive data, which is called "reading value method" (also known as "height method"). The "Width Method" solves many difficult problems that the "Height Method" cannot solve, involving a wide range. For example, the difficulty of synchroni...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B14/02H04L1/00H04L7/00
Inventor 江启航
Owner BEIJING AN GUANG INFO TECH