新型车载倒车雷达监控系统的设计与研制  

Design and development of new car parking sensor monitoring system

作　　者：何乃龙[1,2] 沙奕卓[3] 行鸿彦[1,2] 

机构地区：[1]南京信息工程大学气象灾害预报预警与评估协同创新中心,南京210044 [2]江苏省气象传感网技术工程中心,南京210044 [3]中国气象局气象探测中心,北京100081

出　　处：《信息技术》2016年第3期1-5,14,共6页Information Technology

基　　金：国家自然科学基金(61072133);江苏省产学研联合创新资金计划(BY2013007-02;BY2011112);江苏省高校科研成果产业化推进项目(JHB2011-15)

摘　　要：针对目前普遍使用的车载倒车监控雷达存在一定的监控盲区和成本昂贵的问题,文中设计了一款采用MSP430F149单片机作为系统的控制核心,采用五个超声波收发模块安置在车身的不同部位以满足一定的监控范围,利用液晶进行实时地显示监控的距离,同时利用ISD4004语音模块和蜂鸣器作为系统的报警装置。文中分析并解决了影响超声波测距精度的问题,在监控范围内,车身与障碍物的距离小于设定的安全距离,蜂鸣器与语音模块会进行不同方式的报警。该系统将监控盲区缩短到2cm,测距精度高达1mm,且系统还具备稳定性高、灵敏度高、功耗低和成本低廉等特点,适合安装在各类汽车上,是一款性价比很高的车载倒车雷达监控系统。According to current widespread use of car reversing surveillance radar has certain blind spot monitoring and costly problem,this paper presents a use MSP430F149 SCM as the core control system. The system uses five ultrasonic transceiver module housed in different parts of the body in order to meet certain monitoring range,liquid crystal display real-time monitoring of the distance,while taking advantage of ISD4004 voice module and buzzer alarm device as the system. It analyzes the effects of ultrasonic distance and accuracy to solve problems,and to take advantage of the system; if the distance between the body and the obstacles within the monitoring range is less than the set safety distance buzzer and voice module will be conducted in different ways to the police. The system blind spot monitoring is shortened to 2cm,ranging accuracy up to 1mm,and the system also has high stability,high sensitivity,low power consumption and low cost characteristics,is suitable for installation on all types of car. It is a highly cost-vehicle reversing radar monitoring system.

关 键 词：监控盲区 MSP430F149 超声波模块 安全距离 测距精度 

分 类 号：TP277[自动化与计算机技术—检测技术与自动化装置] TP216[自动化与计算机技术—控制科学与工程]