Abstract
The infrared remote control is one kind of use infrared remote control system controls is controlled the object the department green overall system is composed by the digital circuit and the analogous circuit two parts. Launches partially including the keyboard matrix, the coded modulation, the LED infrared transmitter; Receives partially including the LED infrared light launch, the demodulation, decodes the electric circuit.
Launch infrared through the AS1213 infrared remote control system in special-purpose launch integrated circuit as well as its periphery electric circuit. But take the CX20106 constitution infrared accepting circuit, again through by 89S51 as the data which the core monolithic integrated circuit processes receives, thus achieves the controlled member the goal. Designs in complete and the reliable hardware under the condition, has designed set of formidable software systems, realizes to is controlled the object the accuracy control. Moreover, attachment some procedures resemble system more perfect, reliable, moreover the contact surface is friendlier。
This system main characteristic:
Uses the AS1213 special-purpose launch chip, but outside meets 64 pressed keys, enables the system to have the very strong extension 。
To use the circuit design method which the digital-analog unifies, respectively takes its is long. Enhanced the system reliability。
To use LCD to take the monitor, caused the software system to be easy to realize, most importantly caused to control the object condition to be able to be clear at a glance。
Key words:Infrared remote control; Monolithic integrated circuit