基于时间数字转换技术的区域周界入侵定位系统研究  

Research on Ssecurity Intrusion Location System Based on Time Digital Conversion Technology

作　　者：王小燕[1] WANG Xiao-yan(Engineering Training Center,Anhui Industry&Trade Vocational Technical College,Huainan Anhui 232009)

机构地区：[1]安徽工贸职业技术学院工程实训中心,安徽淮南232009

出　　处：《广东技术师范大学学报》2020年第3期24-27,共4页Journal of Guangdong Polytechnic Normal University

基　　金：安徽省高校自然科学基金重点项目(项目编号:KJ2016A080)。

摘　　要：针对目前光纤安防入侵定位精度低的现实情况,设计了基于时间数字转换技术的区域周界入侵定位方案.为了部分实现该方案,通过单片机发送时间间隔为1ms的脉冲信号来模拟入侵信号.时间数字转换器通过测量这两个脉冲信号到达先后的顺序,得到这两个脉冲信号到达的时间差,再通过SPI通讯方式将得到的时间间隔发送至主控芯片DSP,DSP在经过数据处理后,将处理结果分别发送至Labview及LCD1602中.Labview及LCD1602实时显示测量的时间间隔及确定入侵地点,并由Labview进行报警操作.In view of the present low accuracy of optical fiber security intrusion location,a security intrusion location scheme has been designed in this study based on time digital conversion technology.In order to partially implement the scheme,single chip interval of 1 ms pulse signals were sent to simulate the invasion.A time digital converter was used to measure the arriving time order of the pulse signal,at the same time,the time interval was sent through the SPI communication to the DSP which,after data processing,sent the results to the Labview and LCD1602.Labview and LCD1602 display the time interval and invasion site synchronously and start the alarm operation at the same time.

关 键 词：安防入侵定位 定位精度 时间数字转换 LABVIEW 

分 类 号：TP212[自动化与计算机技术—检测技术与自动化装置]