本文描述了一種無線傳感器網(wǎng)絡(luò)節(jié)點(diǎn)的硬件平臺(tái)組成，分別對(duì)負(fù)責(zé)無線收發(fā)功能實(shí)現(xiàn)
的射頻芯片、負(fù)責(zé)數(shù)據(jù)采集的傳感器模塊、負(fù)責(zé)整體上工作的微處理器進(jìn)行了描述，對(duì)和CC2420 與EM78815 微處理器的硬件接口進(jìn)行了設(shè)計(jì)；然后介紹了本無線傳感器網(wǎng)絡(luò)系統(tǒng)整體軟件體系結(jié)構(gòu)與設(shè)計(jì)，主要包括軟件總體架構(gòu)、硬件驅(qū)動(dòng)層設(shè)計(jì)和操作系統(tǒng)層設(shè)計(jì)。
關(guān)鍵字: 無線傳感器網(wǎng)絡(luò)；射頻芯片；微處理器；驅(qū)動(dòng)
Design of a Wireless Sensor Network Node based on the Microprocessor
LI Yuxian (Xi'an Institute of Telecommunications, Shanxi Xi’an 710061)
Abstract: The hardware structure of a wireless sensor network is represented in this paper. The RF chip, which is responsible to implement the transmitting/receiving function, the sensor module, which is used to sample the data, the CPU are introduced and the hardware interface between CC2420 and EM 78815 is designed in detail. The software structure is referred, including the frame structure, hardware drive designing and operating system designing.
Keywords: Wireless Sensor Network; RF Chip; Microprocessor; Driver