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Data transmission method and data transmission system

A data transmission method and balanced transmission technology, applied in the field of data transmission methods and systems, can solve the problems of high bit error rate and short transmission distance, and achieve the effect of increasing transmission distance and reducing bit error rate.

Inactive Publication Date: 2010-06-09
北京东方信联科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] It can be seen from the above analysis that the RS-232 serial interface in the prior art is used for data transmission, because the transmission distance is relatively short, so it is not suitable for the long transmission distance between the computer and the terminal equipment in actual situations. scene, but also lead to high bit error rate in the case of high baud rate

Method used

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  • Data transmission method and data transmission system
  • Data transmission method and data transmission system
  • Data transmission method and data transmission system

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Embodiment Construction

[0029] In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0030] refer to figure 1 , which shows a flow chart of Embodiment 1 of a data transmission method of the present invention, the method may specifically include the following steps:

[0031] Step 101: When the initial serial signal sent by the sending end is obtained, convert the serial signal into a balanced differential signal.

[0032] Wherein, the sending end may be any end of a computer or a terminal device. The initial serial signal sent by the sending end is specifically an unbalanced transmission signal of the RS-232 serial port. In this step, the unbalanced transmission signal needs to be converted into a balanced differential signal, specifically, an RS-422 balanced differential transmission signal.

[0033] Step 102: T...

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Abstract

The invention provides a data transmission method and a data transmission system. The data transmission method comprises the following steps: converting an initial serial signal into a balanced differential signal when acquiring the serial signal transmitted by a transmitting end; and transmitting the balanced differential signal to a receiving end, and converting the balanced differential signal into the initial serial signal at the receiving end. The data transmission method and the data transmission device of the embodiment of the invention can increase a signal transmission distance in an actual transmission scene, and simultaneously reduce the error rate of data transmission because the transmission of the balanced differential signal belongs to full-duplex data transmission and the reception and transmission of data do not influence each other.

Description

technical field [0001] The invention relates to the field of mobile communication, in particular to a data transmission method and system. Background technique [0002] In the application scenario in the field of automation control, the RS-232 serial interface is generally used for data transmission between the computer and the terminal equipment on both sides of the communication. Due to its characteristics, the communication distance of the RS-232 serial interface cannot exceed 15 meters. Therefore, for application scenarios where the transmission distance between the computer and the terminal device is greater than 15 meters, it will result in the inability to communicate between the computer and the terminal device. Data interaction. RS-232 is an interface standard for serial data communication formulated by the Electronic Industries Alliance (EIA), and its full name is EIA-RS-232 (RS232 for short), which is widely used in computer serial interface peripheral connection...

Claims

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Application Information

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IPC IPC(8): H04L5/14
Inventor 崔敬军韩大庆徐罕聪
Owner 北京东方信联科技有限公司