价值工程
價值工程
개치공정
VALUE ENGINEERING
2014年
5期
42-43
,共2页
车辆检测%频率%振荡电路%单片机
車輛檢測%頻率%振盪電路%單片機
차량검측%빈솔%진탕전로%단편궤
vehicle detection%frequency%oscillation circuit%MCU
本文对基于地感线圈的车辆通行自动检测控制系统进行了研究。由于线圈电感量的变化,使得由三点式LC振荡电路构成的检测电路输出的波形频率发生变化,再经过波形整形电路送入单片机,单片机检测到频率变化来控制电机运转。采用这种方法可以使得当有车辆经过时,挡车器可以自动抬升档杆。而且当杆下有车辆时可以及时停止落杆,防止砸中车辆。具有较高的实用价值和应用前景。
本文對基于地感線圈的車輛通行自動檢測控製繫統進行瞭研究。由于線圈電感量的變化,使得由三點式LC振盪電路構成的檢測電路輸齣的波形頻率髮生變化,再經過波形整形電路送入單片機,單片機檢測到頻率變化來控製電機運轉。採用這種方法可以使得噹有車輛經過時,擋車器可以自動抬升檔桿。而且噹桿下有車輛時可以及時停止落桿,防止砸中車輛。具有較高的實用價值和應用前景。
본문대기우지감선권적차량통행자동검측공제계통진행료연구。유우선권전감량적변화,사득유삼점식LC진탕전로구성적검측전로수출적파형빈솔발생변화,재경과파형정형전로송입단편궤,단편궤검측도빈솔변화래공제전궤운전。채용저충방법가이사득당유차량경과시,당차기가이자동태승당간。이차당간하유차량시가이급시정지락간,방지잡중차량。구유교고적실용개치화응용전경。
This paper researches the vehicle traffic automatic detection control system based on the sense coil. The change of coil inductance makes the three-LC oscillator circuit detection circuit output waveform frequency has changed, then through the waveform shaping circuit put into the MCU, and the MCU could detect the frequency changes to control the motor operation. This approach can make the block cars automatically lift lever when a vehicle passes, and stop the falling in time when there is a vehicle under it, prevent hit the vehicle. This studying has high practical value and application prospects.