Design And Implementation Of The Wireless Fax Terminal Base On GPRS Technology

With the continual progress of the IT society,wireless fax has been a new technology in the wireless network area,it is another high technoglogy products in the mobile telecommunications in the 21^st century.It can be widely used in the area of transportation,removal working,business trip,police reconnaissance,fire control and rescue,rushing dealing with emergencies and rescue,news probe and so on.It can greatly exert its advantages in wireless telecommunications,enable the users to have their own "mobile office".The wireless fax system at present is based on CSD that provided by GSM network,but by this CSD technoglogy,the network resources can not be used adquately.Therefor,this article will focus on the researching of hardwares and softwares'design based on GPRS technology.GPRS is the abbreviation of General Packet Radio Service.Based on the existing GSM network,with new network that equipted with some harewares and upgrade softwares,it has been a kind of ponit to point,ponit to plane,wireless 1P connection, Thus,it can offer grouping data service to the GSM user.This article firstly expatiates background and feasibility of developing Wireless Fax Terminal based on GPRS,and systematically introuduce the elements and function of GPRS.Then,focus on discussing those key technologies of developing Wireless Fax Terminal based on GPRS technology.It mainly study some electronic component,the speciality of CPU C8051F130,the hardware peculiarity and dictate of GSM/GPRS module MC35,and some common AT command,and the peculiarity of the other CMOS chip(scan chip,printing chip and linker chip);And amply introduces the design and implement,including system truss,the summary and detailed designinng of software and hardwares.Lastly,it will summarize this article and put forward the study content in the future.