software design base on SCM multi-channel temperature gathering system
Abstract：With the rapid development of modern information technology，In temperature measurement control system of industrial, agricultural and People's Daily life plays a more and more important role in people's life, and it has very important effect，Temperature gathering in the forestry, agriculture, chemical and even military domain has a wide range of applications，So effective monitor the environment temperature of these regions Is an important task to solve. A temperature sensor constitute electronic monitoring device is a better solution, so use Mcs - 51 SCM series design a temperature gathering system.
the digital multi-channel temperature gathering system by the master control regulator, the temperature gathering electric circuit, the temperature display circuit, reports to the police the control circuit and the keyboard entry control circuit is composed .It makes the control and the data processor, intelligent temperature sensor DS18B20 using monolithic integrated circuit AT89C51 makes the temperature detector, the LED numerical code display tube makes the temperature demonstration output unit. Achieve more monitoring stations in the temperature gathering. And display, alarm functions. Can be used in the general environment temperature acquisition environment.
The software design use assembly language,The design tool adopt keil, Program mainly by the keypad scanning subroutine, the temperature conversion subroutine, read temperature subroutine, the calculation of temperature subroutine, display data refresh subroutines, alarm control subroutines composition.The advantage of the assembly language is high efficiency, and fit for the circuit which simple but require expert . This paper is mainly uses assembler language
Keyword: temperature ensor monolithic integrated circuit software
