A Study of Anti-thief Arrangement for Cars

• Main Authors: Chia-Jung Chen, 陳家榮
• Other Authors: Shang-Kuo Yang Ph.D.
• Format: Others
• Language: zh-TW
• Published: 2011
• Online Access: http://ndltd.ncl.edu.tw/handle/14188042432464548204

博士 === 國立勤益科技大學 === 機械工程系 === 99 === For most people, automobiles are means of transportation; however, for thieves, automobiles are hot cash. No matter how the thieves handle the loots, their final goal is for money. Car anti-thief system is an electronic device installed in a vehicle attempting to increase the difficulty and extend the time of car stealing. This study aims at two goals: to prohibit a car theft by disabling the starting system of the engine and preventing the cars from being driven away even if the engine is started. Therefore, the combination of a rolling code type alarm mainboard, an UPS speaker, a check valve, a solenoid operated directional control valves (2-port-2-position,normal open), digital logic circuits, a comparator, a timer, and a hydraulic system the starting system can be disabled and the brake system can be locked when the car is being stolen so as to achieve the abovementioned dual purposes.