数据传输模式自适应切换的设计与实现

Design and Implement ation of Adaptive Mode SwitchingAbout Data Transmission

摘要:

给出一种采集数据传输到服务器过程中,互联网和GSM两种模式之间自动切换的机制,以处理业务运营中的不同情况;若采集器无互联网环境,则启动GSM模式,即通过短信发送数据;若有互联网环境,则启动互联网模式;并在互联网模式下,根据业务需求,对采用的通信协议(TCP/UDP)进行自适应调整;为满足即时性要求,选择UDP作为通信协议,但当通信时延超过限定值时,则切换至TCP协议；为满足可靠性要求,选择TCP作为通信协议,但当接收的连接数将超过服务器最大承载量时,切换至UDP协议;另在互联网模式下,若长期得不到采集器响应,则切换至GSM模式;在JAVA开发环境下对该机制进行设计,并通过socketTool工具对其功能进行验证;结果显示,自适应融合模型能根据不同业务需求进行模式间切换,运行平稳。

Abstract:

To deal with the different actual business operations, during the data transmission from collector to server, an adaptive switch approach between Internet model and GSM mode is given. If the collector can't connect to the Internet, start the GSM mode, it sends data via SMS to the server. If the collector can get connection to the Internet, select UDP communication protocol to meet the real-time requirements, but when the communication delay exceeds the threshold, switch to TCP protocol. Select TCP communication mode to meet reliability requirements, but when the receive connection number of server is about to exceed the carrying capacity, switching to UDP protocol. In Internet mode, if it can't get the response from collector for a long time, then switch to GSM mode. Design the approach in the JAVA environment and verify its function by socketTool. The results show that the approach can switch modes depending on the needs of different business, and running smoothly.