文中介绍了一种利用GPRS网络以及Socket通信机制,通过GPRS无线模块实现发送多媒体消息的方法。在多媒体消息发起方的事务处理部分,通过AT命令控制modem登录GPRS,建立网络连接;使用会话管理工具,通过数据报型套接字与WAP网关建立会话;将已封装好的MMS协议数据单元提交至网关,成功实现多媒体消息的发送。 This paper introduces a method using GPRS network and Socket communication mechanism to send multimedia messages through GPRS wireless module. In the transaction processing part of the multimedia message originator, the AT command controls the modem to log in to the GPRS to establish a network connection; the session management tool is used to establish a session with the WAP gateway by using a datagram socket; and the already packaged MMS protocol data unit is submitted To the gateway, the successful realization of multimedia messaging.