Abstract
With the development of technologies such as intelligent, automatic control and automatic detection, the research of smart cars has been gradually applied to all levels of people’s social life. The design aims to use K60 as the control chip of smart car and combined with image recognition sensor. Identify road condition information, feedback steering gear, motor control, to complete the intelligent driving of the smart car under complicated road conditions. The experimental results show that the control system has good response characteristics, good stability and meets technical requirements.
Highlights
The control chip decodes and calculates the information collected from each field, extracts the corresponding black line information, and fits the midline to find the deviation in the driving process of the intelligent vehicle
In a speed closed-loop control system, the motor speed is measured by an encoder to measure the speed of the smart car at a certain moment, and the speed difference is adjusted by the software to make the smart car reach the expected running speed
The software program written by the control chip controls the steering gear of the smart car to ensure that the smart car can stably travel according to the planned route during the running process, and if there is a deviation, the servo work is adjusted through the software program
Summary
The design process of the entire smart car system involves computer, sensing, information, communication, navigation and automatic control technologies, and is a typical high-tech complex. The control chip decodes and calculates the information collected from each field, extracts the corresponding black line information, and fits the midline to find the deviation in the driving process of the intelligent vehicle. It adjusts the steering gear angle of the intelligent vehicle through the PD algorithm, so that the driving direction of the intelligent vehicle can be adjusted and the intelligent vehicle can be guaranteed. In a speed closed-loop control system, the motor speed is measured by an encoder to measure the speed of the smart car at a certain moment, and the speed difference is adjusted by the software to make the smart car reach the expected running speed
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