Development Of Converting Serial Interface Into WiFi/GPRS Data Dual-netcom Module

With the high development of computer, communication and network technologies, wireless communication technology has a tremendous application in different trades and fields . Intelligent, networked information platform to promote efficiency and management level is necessary to be built in large coal mine, oilfield, industry automation, data acquisition and surveillance system. But during the construction of this information platform, the data acquisition terminal and intelligent equipment which rely on RS 232 serial interface can not access network fast, it also can not achieve data sharing and centralized management. According to these problems, this thesis proposes a method to convert serial interface into WiFi/GPRS data dual-Netcom Module, which including software, hardware design and implementation.This thesis comes from the task of Open-air coal communication and Surveillance System project belonging to XinJiang Yili coal Power Company Limited. The new design converts serial interface into WiFi/GPRS data dual-Netcom Module, its hardware and software development platform are based on S3C2410 microprocessor and Linux embedded real time OS. Having studied WiFi and GPRS wireless communication technology, based on the specific demands and targets, WM-G-MR-09WiFi module of USI company and SIM300DGPRS module of SIMCOM company are adopted separately to design WiFi and GPRS Module interface circuit . S3C2410 processor has deeply analyzed and ported BootLoader(vivi) and Linux core. Through compiling and porting WiFi module interface(SPI)'s driver, the thesis has designed WiFi and GPRS communication application software. The thesis has also developed a dual-Netcom Module's configuring software using serial communication programmable Active control of Windows in the VC++6.0 integration development. Finally, converted WiFi/GPRS data dual-Netcom Module has been tested, the result shows that dual-Netcom Module can transfer data from Serial Interface to WiFi/GPRS, the serial interface device can also access WiFi and GPRS networks very fast. Converted WiFi/GPRS data dual-Netcom Module is an efficiency serial interface device of connecting WiFi and GPRS network ,which is endowed with promising future.