基于多源信息融合的倒车预警系统设计  

Design of reverse warning system based on multi⁃source information fusion

作　　者：王欠欠 马俊 周恩帆 陈博行 方卫强 WANG Qianqian;MA Jun;ZHOU Enfan;CHEN Bohang;FANG Weiqiang(School of Physics and Electronic Information Engineering,Qinghai Normal University,Xining 810008,China)

机构地区：[1]青海师范大学物理与电子信息工程学院,青海西宁810008

出　　处：《电子设计工程》2021年第16期70-74,共5页Electronic Design Engineering

基　　金：国家自然科学基金(61761040);教育部春晖计划(Z2015062);青海省重大科技专项(2019-ZJ-A10);青海省135高层次人才资助和青海省物联网重点实验室建设专项(2017-ZJ-Y21)。

摘　　要：针对当前倒车预警系统中障碍物距离测量不准确等问题,设计了一种基于多源信息融合的倒车预警系统。该系统以STC89C52为核心,结合超声波测距模块、电源模块、LCD显示模块、语音报警和蜂鸣器报警模块搭建外围电路。通过设置多方位超声波测距模块采集不同方位障碍物的距离信息,在STC89C52内完成采集数据的融合,同时系统设计了LCD显示、语音提示和蜂鸣器报警功能。当障碍物与车的距离h满足30 cm≤h<50 cm时,循环语音提示;当h<30 cm时,开始蜂鸣器报警,同时在LCD屏显示实时测量的距离。实验测试得出该系统距离测量较为准确,运行良好,具有一定的实际意义。Aiming at the problem of inaccurate obstacle distance measurement in current astern warning system,a kind of reversing warning system based on multi⁃source information fusion is designed.The system takes STC89C52 as the core and builds the peripheral circuit by combining the ultrasonic ranging module,power supply module,LCD display module,voice alarm and buzzer alarm module.By setting the multi⁃directional ultrasonic ranging module to collect the distance information of obstacles in different directions,the fusion of the collected data is completed within STC89C52.Meanwhile,the system designs LCD display,voice prompt and buzzer alarm functions.When the distance between the obstacle and the car is 30 cm≤h<50 cm,the voice prompt will be repeated.When h<30 cm,the buzzer will start to alarm,and the distance will be displayed on the LCD screen.Real⁃time measurement,the system distance measurement more accurate,good operation,has a certain practical significance.

关 键 词：倒车预警 多源信息融合 STC89C52 超声波测距 语音报警 

分 类 号：TN6[电子电信—电路与系统]