CAJ | 학술논문

为降低现有农业无线灌溉系统中控制节点的能耗，延长无线灌溉网络的生命周期，采用 OOK 调制技术，设计了一种低功耗唤醒装置，改变了当前无线灌溉系统中定时周期唤醒方式，减少了系统中开销，并实现了在434 MHz频段下无线灌溉控制器的研制。控制器主要由C8051 F965单片机、电源电路、电磁阀驱动电路、唤醒电路、无线收发通道和开关量采集电路组成。该控制器由基站发送指令控制，根据距离远近，自适应寻址接收信号，实现实时采集和控制。经试验测得：额定容量为250mAh 的单节碱性9V 电池，可使控制器工作一个灌溉季以上；与采用传统唤醒方式相比，系统不仅降低了能耗，而且提高了响应速度。
위강저현유농업무선관개계통중공제절점적능모，연장무선관개망락적생명주기，채용 OOK 조제기술，설계료일충저공모환성장치，개변료당전무선관개계통중정시주기환성방식，감소료계통중개소，병실현료재434 MHz빈단하무선관개공제기적연제。공제기주요유C8051 F965단편궤、전원전로、전자벌구동전로、환성전로、무선수발통도화개관량채집전로조성。해공제기유기참발송지령공제，근거거리원근，자괄응심지접수신호，실현실시채집화공제。경시험측득：액정용량위250mAh 적단절감성9V 전지，가사공제기공작일개관개계이상；여채용전통환성방식상비，계통불부강저료능모，이차제고료향응속도。
In order to reduce the energy consumption of control nodes in the wireless irrigation system of the existing agri-cultural field, and to extend the life cycle of wireless irrigation network.Based on OOK modulation technology, this pa-per designs a low power wake-up receiver which changes the mode of timing period way in traditional wireless irrigation system and reduces system overhead, and develops wireless irrigation controller in 434MHZ frequency channel.The de-vice consists of C8051F965 microcontroller, power circuit, valve driving circuit, wake-up receiver, wireless transceiver channel and acquisition module.According to distance between the controller and the base-station, the controller adap-tively searches the signal which be sent by base-station, implements real-time acquiring and controlling.The test results show that a 9 V alkaline battery with the capacity of 250 mAh could support the device for more than one irrigation sea-son.Compared with the traditional way, the controller not only reduces energy consumption, but also improves real-time response.