In order to improve labor efficiency of farmers in large quantity of greenhouses areas and increase production,the lost-cost wireless temperature sensor was designed in this paper by combination of wireless transceiver chip A7302A and digital temperature%为了提高农村蔬菜大棚规模种植地区农户的劳动效率,减少管理失误,从而实现增产增收.采用无线射频发射芯片A7302A和数字温度传感芯片DS18B20,设计了低成本的无线温度传感器.采用无线射频接收芯片A7201A结合GSM短信模块设计了中心站.两者组成了一套组网简单,安装使用成本低的蔬菜大棚温度监测报警系统.该系统还具有使用简单、布点灵活、扩展性好、可靠性高、适宜普通农户使用等特点,实现了蔬菜大棚温度监测的自动化,提高了农户管理效率.
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