The Control System for Lighting Based on
Single–chip Microcomputer
Abstract
With the rapid development of electronic technology, the system of control based
on Single-chip Microcomputer is widely applied in industry, agriculture, electric
power, electron, intelligent building and so on. Microcomputer, as the subject and
core of the embedded system of control, replaces the traditional system—electronic
circuit. At the same time, the development and maturation of the intelligent building
have established the substantial foundation for the popularization and application of
the control system for lighting based on single-chip microcomputer.
The paper expatiates on the designing theories and implementation method of
the control system for lighting by wired or wireless communications. Taking the
designing process as mainline, it describes the process of designing from two
respects—hardware and software. In another word, the paper describes the process
from the method of circuit designing to the software technology of realizing the
demanded functions. The host controller of the control system for lighting is based on
AT89C51 single-chip microcomputer, and the auxiliary ones are based on
AT89C2051. The system can do many jobs, such as wired communication, wireless
data transmitting, controlling and display. The paper describes the designing process
of the circuit at length, including: keyboard and LED display circuit, RS485
communication circuit, wireless transmitting circuit, control circuit of lighting,
watchdog circuit, etc. The designing of software mainly includes the several
programming, such as wired communication, wireless data transmitting, lamplight
controlling, timed controlling, keyboard scanning and LED displaying. The wired
communication programming function is that through Master-slave communication
method based on RS485 the host controller sends orders to the all auxiliary controllers
