摘要
对讲机的通信距离有限,提出一种通过Internet传输数字对讲机话音和数据,扩大对讲机通信范围的方案。数字对讲机通过串口与计算机相连,计算机作为中心站,完成数据的转发功能,并通过Internet传输数据。首先设计了数字对讲机和计算机之间通信的串口通信协议,在此基础上详细讲述了中心站的软件设计。中心站软件的设计主要包括三个部分,对讲机模块和计算机之间串口通信协议的设计和实现,通过Internet使用UDP协议的数据传输;使用Access数据库对对讲机用户号码及中心站IP地址的管理等。通过对中心站软件的测试表明,设计的串口通信协议可行,使用中心站软件能通过该方案有效地扩大对讲机的通信距离。
The communication scope of walkie - talkie is limited,a scheme which is used for transmission of the voice and data of digital walkie - talkie through Internet to enlarge the communication scope is proposed. The scheme links digital walkie -talkie with computer using serial port,the computer acts as a central station to forward the data,and the data is transmitted through Internet. The serial port communication protocol between digital walkie - talkie and computer is designed, on this basis,the central station software is designed. The software mainly includes three parts, the design and realization of the communication protocol between walkie - talkie module and computer, using UDP protocol to transmit data through Internet, and using Access database to manage the users＇ number of walkie - talkie and IP address of central station. Through testing the central station software, it shows that the designed serial port communication protocol is feasible, using this software through this scheme it can effectively enlarge the communication scope of digital walkie - talkie.
出处
《现代电子技术》
2010年第2期73-75,79,共4页
Modern Electronics Technique
