关键词: 温室 智能测控系统 WSN 网关

Abstract:

Wireless sensor networks are widely used in the modernization of agriculture. This paper analyzes the importance of a gateway in greenhouse intelligent measuring and controlling systems, proposes the design principle of a gateway, and makes the choice of devices. Based on the low-power PXA270 embeddedprocessor, the hardware platform of a gateway is implemented with the Ethernet, the USB host, and the CF card interface. Finally, we analyze elaborately the booting process of the boot loader, and implement the porting of Blob in the gateway designed by ourselves.

Key words: greenhouse, intelligent measuring and controlling system, wireless sensor network, gateway