CAJ | 학술논문

在节点现有功能基础上进行外围电路功能扩展是传感器网络应用开发中的常见问题之一。本文以JN5139系列节点为基础，用测量范围较大的高温采集电路，替换了原有的常温传感器；配备了蓄电池电压检测电路，使得监测中心能及时了解节点能量供应情况；通过纽扣电池为节点时钟芯片提供电源，保证节点时钟计时准确性；采用GPRS开关控制电路，降低了汇聚节点能量损耗；设计的看门狗控制电路，提高了节点工作的可靠性和稳定性。
재절점현유공능기출상진행외위전로공능확전시전감기망락응용개발중적상견문제지일。본문이JN5139계렬절점위기출，용측량범위교대적고온채집전로，체환료원유적상온전감기；배비료축전지전압검측전로，사득감측중심능급시료해절점능량공응정황；통과뉴구전지위절점시종심편제공전원，보증절점시종계시준학성；채용GPRS개관공제전로，강저료회취절점능량손모；설계적간문구공제전로，제고료절점공작적가고성화은정성。
Extending the function of the peripheral circuit based on the existing features of wireless sensor network nodes is one of the frequently asked questions in the development of sensor network applications. In this paper which is based on JN5139 series nodes, we replace the original temperature sensor by a wider range of high-temperature data acquisition circuit. A battery voltage detection circuit is equipped in order to make the monitoring center keep the abreast of the node energy supply. Button battery is used to provide power for clock chip of node to ensure the timing accuracy of the node clock. We use GPRS switching control circuit to reduce the energy loss of coordinator. The design of watchdog control circuit improves the reliability and stability of the nodes.