通信协议宏在高速路情报板控制中的应用研究

Application of Protocol Macro of Communication in Controlling Variable Information Board of Expressway

为了克服一些智能设备通信协议不标准、不便于系统集成等缺点,采用了一种新颖、高效的通信协议宏通信方式。分别对通信协议宏的原理和实现方法进行了研究,并结合高速公路导引与控制系统,在情报板通信协议可变的基础上,利用CX-Protocol软件编写了RS-485串口通信协议宏。最后总结了通信协议在实际应用中应注意的一些问题。情报板系统实现了对情报板的控制与检测,取得了令人满意的效果。

To overcome the demerit that it is difficult to integrate the system caused by some intelligent devices because of using non-standardized communication protocols, the novel highly efficient communication mode of communication protocol macro is adopted. Tne principle and implementing method of the communication protocol macro are researched respectively. In addition, combining with the expressway introducing and control system, and on the basis of variable communication protocol for information board, by using CX-Protocol software, the protocol macro for RS-485 serial commu- nication has been written. Finally, some of the issues to be noted in practical applications of the communication protocols are concluded. The system of information board implements the control and detection of information board and obtains satisfactory results.