林业装备低功耗防丢器  

Design of low power Bluetooth anti loss device based on wechat applet

作　　者：陈嘉威 田昊[1,2] CHEN Jia-wei;TIAN Hao(School of Technology,Beijing Forestry University,Beijing 100083,China;Key Laboratory of Forestry Equipment and Automation,National Forestry and Grassland Administration,Beijing 100083,China)

机构地区：[1]北京林业大学工学院,北京100083 [2]林业装备与自动化国家林业和草原局重点实验室,北京100083

出　　处：《林业和草原机械》2020年第1期55-60,共6页Forestry and Grassland Machinery

基　　金：北京市大学生科学研究与创业行动计划项目(项目编号:S201910022059)。

摘　　要：穿戴设备越来越走近林业活动中,特别是一些随身携带的林业勘探小工具更加受到从业人员的青睐,使用频率越来越高,但同时也存在不同程度的丢失现象。利用低功耗蓝牙技术设计一个拥有防丢找回功能的应用程式。通过调用手机的蓝牙功能来获取绑定在物品上的蓝牙信号的强度来计算两个蓝牙设备之间的距离。当距离超过设定阈值时给出警告信息,从而达到提醒防丢目的。采用多次测量取均值的方法降低蓝牙信号浮动的负面影响,解决了RSSI值不够稳定且容易受到干扰的缺点,提高了测距的稳定性,可以为林业生产用具的管理提供帮助。Wearable equipment is more and more close to forestry activities,especially some small tools of forestry exploration that are carried by forestry personnel are more and more popular and use freguently,but at the same time,there are also different degrees of loss phenomenon.In this paper,we use low power Bluetooth technology to design an application program with the function of anti lost and recovery.The distance between two Bluetooth devices is calculated by obtaining the signal strength of the Bluetooth bound to the object through calling the Bluetooth function of the mobile phone.When the distance exceeds the set threshold,a warning message will be given to prevent loss.In the paper,taking the method from multiple measuring value to reduce the negative impact of Bluetooth signalfloating,solving the question that RSSI Vale is not stable and easy to be distubed,improving the stability of ranging and providing help for the management of forestry production equipment.

关 键 词：低功耗蓝牙 防丢器 微信小程序 

分 类 号：S776.2[农业科学—森林工程] TN836[农业科学—林学]