【摘要】 随着通信事业的发展,基于GSM的移动终端应用已日益广泛。在研究Siemens公司生产的TC35i GSM模块的基础上,给出一种由TC35i构成的移动终端硬件电路设计和SMS编码方法,包括构成终端的数据通信电路、SI M卡电路、电源及启动电路,并探讨了在设计过程中遇到的问题和解决的方法。该设计可以完成短消息的收发,与PC机进行数据传输等功能。已成功应用在基于GPS和GSM网络的新型汽车防盗系统中。更多还原

【Abstract】 With the development of communications,the application of mobile terminal based on GSM becomes increasingly wide.The hardware circuit design and SMS coding method of TC35i-based mobile terminals(compised of data communication circuit,SIM card circuit and power supply circuit)are presented based on the reseach of TC35i module produced by Siemens.The problems encountered in the design process and their solutions are investigated.This design can achieve the transceiving of short messages,data transmission with computers and other functions.It has been successfully applied to the new type of car security system based on GPS And GSM Network.更多还原