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A dual-channel communication method and system

A communication method and technology of a communication system, applied in the direction of transmission system, electrical components, etc., can solve the problems of heavy server load, many TCP long connections, etc., and achieve the effect of reducing the burden

Active Publication Date: 2016-12-21
航天数联信息技术(深圳)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantage of this solution is: the DTU of each monitoring station needs to maintain a TCP connection with the monitoring platform server. There are many monitoring sites, and the monitoring platform server needs to maintain more TCP long connections, and the server load is larger.
The disadvantage of this solution is that a dial-up device needs to be connected to the server, and dial-up tool software needs to be developed, and dial-up has a certain delay (dial-up time).

Method used

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  • A dual-channel communication method and system
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  • A dual-channel communication method and system

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Embodiment Construction

[0042] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0043] figure 2 A schematic diagram of a two-channel communication system 100 according to one embodiment of the present invention is shown. Such as figure 2 As shown, the system 100 includes a DTU 110 and a server 120 connected through a network. In a specific application, the DTU 110 can be installed at the monitoring site, connected to the Internet through a mobile GPRS network, and then establish a connection with the monitoring platform server 120 through the Internet, so as to actively report monitoring data to the server 120 or respond to instructions issued by the server 120 to the serv...

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PUM

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Abstract

The invention relates to a dual-channel communication method and system. The method includes: when the DTU needs to actively send data to the server, establish a TCP connection with the server, send data to the server through the TCP connection, and disconnect the TCP connection with the server after the data transmission is completed; When sending an operation command, use the UDP protocol to send a connection trigger command to the DTU; the DTU establishes a TCP connection with the server based on the connection trigger command; the server sends an operation command to the DTU through the TCP connection; The connection sends data to the server and disconnects the TCP connection with the server after the data is sent. The present invention can maintain the reliable TCP protocol used when DTU reports data, and realizes that the server sends instant instructions to the DTU without maintaining a long connection between the DTU and the server, which reduces the burden on the server and does not require additional equipment and development costs.

Description

technical field [0001] The present invention relates to communication technology, more specifically, to a dual-channel communication method and system. Background technique [0002] The data transfer unit (data transfer unit, DTU) is a wireless terminal device specially used to convert serial data into IP data or convert IP data into serial data for transmission through a wireless communication network. The most basic usage of DTU is to put a SIM card with GPRS function in the DTU. After the DTU is powered on, it first registers to the GPRS network, and then connects to the Internet through the mobile core network switch of the GPRS network, and establishes a connection with the server through the Internet. Such as figure 1 shown. exist figure 1 In the system in which DTU communicates with the server shown, multiple DTUs such as DTU1, DTU2 and fire prevention, hydrology, electricity, meteorology, environmental protection and other equipment are connected and placed on the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L29/08H04L29/06
Inventor 罗洪林雷彪
Owner 航天数联信息技术(深圳)有限公司