The Design And Realization Of Wireless Handheld Platform Based On Embedded System

People's living standard has been improving with the high-speed development of digital information technology, internet technology, and embedded technology. The information technology community is gradually changing people's way of life with work habits, but also posed a challenge to the monitoring technology, intelligent security monitoring also come about.This article combined ZigBee with ARM technologies to the embedded wireless terminal design and application of the background, the development of handheld device analyzes the current situation at home and abroad, according to the actual needs of the ZigBee ARM Linux for embedded platforms for the program. The platform can be used as the customized development of embedded handheld device platform for practical applications a good starting point for development.Full account of the practical application in the Intelligent terminal of the centralized control, remote access needs, and low cost of the actual needs, design a wireless ZigBee technology the overall structure of a network system, and meet the low power consumption, low cost, network-capacity requirements. Major research paper reads as follows:(1) Analyzing the possibility of the system, including brief theoretical basis, processor and development board/and the system performance parameter settings.(2) Of the Linux operating system platform for building process, build cross-compiler environment for embedded systems, conducted a Linux kernel configuration and migration, to complete the system loads the driver, making the root file system, etc., prepared under the Linux system, read the serial port write operation, the foundation for the system development.(3) Of the graphical interface, and Qtopia embedded key technology. Especially in the development board for the operating system, embedded file system and embedded database migration, implementation support touch function QT/E on the hardware platform migration. In the application procedures, this design choice prepared with Qtopia2.2 wireless network monitoring user interface and data analysis applications, the final completion of the embedded handheld platform. (4) Of the ZigBee wireless communication protocol, the level of the ZigBee protocol, network topology, routing equipment, deeply research, combined with monitoring need to realize a star network applications.This system has a nice man-machine communication interface and sensitive detection, good Portability and expansibility; specific requirements can be easily expanded in ZigBee and ARM in order to achieve more.