Design of Autonomous Tracing System in Intelligent Vehicle Based on Infrared Photoelectric Sensor
A design of autonomous tracing system in intelligent vehicle is introduced. The software and hardware design method which realizes the autonomous tracing using the infrared reflective photoelectric sensors as the path recognition module is researched. The system employs Freescale HCS series 16 bit single-chip microcomputer MC9SDG128 as its main controller and an array of photoelectric sensors for recognizing the path information. Single-chip Microcomputer energizes the servor to steer and control the speed of the DC electric motor according to the analysis of the path and speed information from sensors. Consequently, this intelligent vehicle can track the black-guide-line automatically and move forward following the. line quickly and smoothly. The autonomous tracing principle of photoelectric sensor is presented. The effects of sensors' array, overall arrangment, and space on theautonomous trace are discussed.