摘要
针对传统信标机落地后回收效率低、功率损耗大的问题,研制了一种可指示落点位置的新型信标机。在硬件部分,该信标机选用低功耗单片机STM32L431控制GPS定位模块和北斗短报文模块,并对供电电路实时采集。在软件部分,采用组合模型算法预测下一时刻的位置信息,并增加了“休眠工作”模式,实现与“正常工作”模式的循环切换。实验结果表明,组合预测结果和实地结果在经度、纬度和高度方向上的差值均在±25 m内,即落点搜寻工作可在以组合预测落点坐标为中心,维度为25 m×25 m×3 m的空间体内开展,提高了回收效率;双模切换的工作方式将能量损耗降低至传统信标机的64.7%,续航时间延长了11.16 h,具有较高的应用价值。
Aiming at the problems of low recovery efficiency and large power loss of traditional beacon machine after landing,a new bea-con machine which can indicate the landing position is developed.In the hardware part,the beacon adopts low power single-chip micro-computer STM32L431 to control the GPS positioning module and Beidou short message module,and collects the power supply circuit data in real time.In the software part,the combination model algorithm is used to predict the position information of the next moment,and the“sleeping work”mode is added to realize the cyclic switch with the“normal work”mode.The experimental results show that the difference between the combined prediction results and the field results in the direction of longitude,latitude and height is within±25 m,that is,the drop point search can be carried out in the space centered on the combined prediction coordinates with dimensions of 25 m×25 m×3 m,which improves the recovery efficiency.The dual-mode switching style reduces the energy loss to 64.7%of the tradi-tional beacon,and extends the endurance by 11.16 h,which has high application value.
作者
薛思琪
任勇峰
XUE Siqi;REN Yongfeng(State Key Laboratory of Electronic Testing Technology,North University of China,Taiyuan Shanxi 030051,China)
出处
《电子器件》
CAS
2024年第1期42-47,共6页
Chinese Journal of Electron Devices
基金
国家自然科学基金项目(521032089,62122030,22275066)。
关键词
信标机
落点预测
北斗短报文
组合模型
回收效率
低功耗
beacon machine
point prediction
Beidou short message
combination model
recovery efficiency
low power consumption
