A Real-time Fuzzy Traffic Control System in Sensor Network

• Main Authors: Jing-Huan Huang, 黃景煥
• Other Authors: 謝振榆
• Format: Others
• Language: zh-TW
• Published: 2012
• Online Access: http://ndltd.ncl.edu.tw/handle/72d3v4

碩士 === 國立虎尾科技大學 === 光電與材料科技研究所 === 100 === The current transportation system to relieve traffic congestion by chain semaphores algorithm way, with the CBD(city business district) changes to affect direction of traffic movement, in addition to many hybrid roads (cars and motorcycles share) in the national local, makes the lack of chain semaphores algorithm control phase (red time, green time) flexibility. In this study, fuzzy control system can be used to establish membership functions and rule base to improve control phase flexibility of chain semaphores algorithm. Transport system detected more data, the more be able to master traffic situation, detection of traffic using the pavement laid-type and non-intrusive detectors to detect, the pavement laid-type be able to measured vehicle speed, vehicle number, and vehicle types. This paper will combine wireless and piezoelectric sensors, the use of wireless will transmit to the turn the vehicle data to detect side, and the directional traffic signal (left and right turn, straight) can play a more management signals time phase. Currently the market has been common wireless ZigBee and nrf24L01 most widely used, and ZigBee transmission-type topology with functional features. However, it has a pair of six star nrf24L01 transmission mode, the wireless transmission model used in this study (nrf24L01), It was complete the network topology Park-style transmission, ZigBee market price five times more expensive than nrf24L01, ZigBee wireless module attached single-chip multi-league as a transport protocol.