摘要
针对工业生产领域有线设备检测光功率的不便,从应用角度出发,提出一种基于LORA^(TM)调制的低功耗光功率检测标签设计。无线低功耗光功率检测标签由光传感器、低功耗处理器、LORA^(TM)调制解调器和锂电池组成,光传感器将光强转换为大小变化的电流,通过对电容充放电和单稳态触发器,产生频率变化的脉冲信号,低功耗处理器在固定时长窗口下检测脉冲个数从而获得光功率,并通过LORA^(TM)调制将数据发送至手持PAD进行数据展示。实验证明:本设计系统稳定,检测精度高,待机电流低至0.2 mA。
In the industrial production field,aiming at the inconvenience of detecting optical power by wired equipment,from an application point of view,a low-power optical power detection tag based on LORA^(TM) modulation is designed.The wireless low-power optical power detection tag is composed of light sensor,low-power processor,LORA^(TM) modem,and lithium battery.The light sensor converts the light into a variable electric current.Pulse is produced by charge and discharge capacitor and single retriggerable monostable multivibrator.The low-power processor detects the number of pulses in fixed time,and sends the data to the PAD for data display through the LORA^(TM) modem.The experiment proves that the designed system is stable,the detection precision is high,and the standby current is as low as 0.2 mA.
作者
王磊
朱可
王军
WANG Lei;ZHU Ke;WANG Jun(Information Construction and Management Center,Suzhou University of Science and Technology,Suzhou Jiangsu 215009,China)
出处
《电子器件》
CAS
北大核心
2022年第6期1459-1462,共4页
Chinese Journal of Electron Devices
