Research On Intelligent Vehicle Design With MCU

Accompanied by the rapid development of automotive electronics technology, the public increasingly high demand for the car outside in addition to driving safety, environmental protection as well as intelligent and IT. Came into being the smart car increasingly play a key role in the intelligent transportation systems (ITS), the autopilot key technologies of the smart car in traffic, has a broad application prospects, and get a lot of attention. Smart car system with automatic control, artificial intelligence, information integration, sensors, image processing and computer science discipline technology, and intelligent vehicle control system is one of the most active areas of research.Intelligent vehicle system design, based on the basic model of the smart car the mechanical design intelligent auto body structure and hardware circuit design, smart car automatically tracking the decision-making system and control algorithm research. In this paper the design for the robot system to MC9S12XS128MAL magnetic upright micro controller unit for the core control, combined with the gyroscope ENC-03and digital MMA7660acceleration sensor measuring robot and ground dip Angle, through the single-chip microcomputer A/D converter acquisition gyro data, through the IIC serial acquisition M acceleration sensor MMA7660data. Will ENC-03and MMA7660data kalman fusion obtain a precise Angle. Through the digital PID controller to dip Angle for the input, for its output control PWM motor speed and steering. To use the hall type encoder measurement wheel speed to overcome the gyroscope and speed up the DuQi drift error, and realize the walking robot before and after. Use two rounds of differential control of the car to. To find magnetic sensor is to use the principle of RC resonance frequency measurement have fixed and fixed size of alternating current position of the wire to fulfill. In this paper the use of two found magnetic sensor, through the A/D converter collecting the data, calculation for two magnetic sensor data, then by A digital PD controller control two rounds of differential, including differential link again through A gyroscope realized. The entire system of power supply by Ni-Cd rechargeable batteries offer, which drive chip directly by the battery power supply, single chip minimize system, such as by5V power supply coder inside the voltage of7805into5V provide, the gyroscope and acceleration sensor consists of1117provides the voltage3.3V. For the robot is used online debugging serial port. Smart model car systems design, development and research, has made certain achievements, but still imperfect place, pending further study.