Study on The Application of Intelligent Control in Avoiding Emergency Vehicles at Crossroads

• Main Authors: CHEN,HSIEH-CHIH, 陳協志
• Other Authors: YI JWO-HWU
• Format: Others
• Language: zh-TW
• Published: 2017
• Online Access: http://ndltd.ncl.edu.tw/handle/79428960483492054651

碩士 === 國立高雄應用科技大學 === 電機工程系博碩士班 === 105 === In recent years, there have been numerous news reports on delays experienced by ambulances or other emergency vehicles during rescue missions owing to traffic congestion, or traffic accidents faced by such vehicles at road intersections, attributable to a lack of courtesy shown by other drivers. These scenarios can not only result in mission failure, but may also lead to more casualties because of traffic accidents. With countless such scenarios being captured on camera, it is certain that even more have occurred off-camera. This study employed a radio frequency identification (RFID) system as a sensing system along with an Arduino microprocessor, to execute signal judgment and to alter traffic signals at intersections. Sensing systems were placed at the last intersection along each road section, before all major intersections, or intersections regularly crossed by emergency vehicles, where signals were only transmitted from emergency vehicles during rescue missions. After a signal was received by the sensing system, the microprocessor would execute the judgment of traffic signals at intersections, and switch them to an emergency mode to maintain a green light or alter traffic signals to a green light, for traffic signals located along road sections where the emergency vehicle was traveling. Concurrently, the sensing system would alter traffic signals along other road sections to display a red light to quickly relieve traffic congestion and allow the emergency vehicle to travel along the road speedily. This measure was coupled with the use of the emergency vehicle’s siren to ensure that other drivers took note of an emergency and slowed down to give way to the emergency vehicle to cross intersections. When a signal from the emergency vehicle has been sensed by the sensing system located at the next intersection, the traffic signal at the previous intersection, which the emergency vehicle has just crossed, returns to the normal mode.