Chen Youchao
〔College of Engineering，South China Agricultural University，Guangzhou 510642，China〕
Abstract：The intelligent is a direction of developing in the future that as a new modern invent.
It can follow the automatic operation in an environment with the pre-set pattern, management
without anybody; also can be applied to the use of scientific expiration. Intelligent car is one
reflect of its features. Intelligent remote control technology means charged with the target remote
control, it widely used in industrial control, aerospace, home appliances field. However the
infrared remote control is also a wireless, non-contact control technology, but it has a strong
anti-interference ability, reliable information transmission, low power consumption, cheaper easy
to implement and other significant advantages. So it widely used in many electronic devices
which especially household appliances and more and more applications used into the puter
system.
This paper introduces the remote control car control system based on infrared remote
control technology, with STC89C52RC single-chip microputer as the core, the use of infrared
remote control to control the direction and speed of the car. The hardware part of the system is
mainly posed of single chip microputer minimum system module, infrared launch the
independent type keyboard circuit, infrared emission circuit, infrared, infrared receiving circuit,
control circuit at the receiving end, etc. Used C language programming software part, the infrared
emission is the main program, keyboard scanning subroutine, the infrared coding subroutine, ir
main program at the receiving end, the infrared decoding subroutine, the car control subroutine,
etc. When independent type keyboard has a key press, single chip microputer scan and confirm
which keys are pressed, and the key corresponding to the coding operation after launch out by
