2010•Microcomputer InformationRequires access

The Design of the Temperature Acquisition System Based on RS485

Qin Chang-hai

Abstract

The hardware and software design of the temperature acquisition system based on RS485 serial communication criterion isintroduced. The acquisition of temperature data is finished by the system taking AT89S52 MCU as core. Collected data can be sentup to computer through RS485 serial bus,stored and processed in it. The software of this system includes MCU and computer pro-grams,programmed with C language and VB language. Some corresponding software and hardware anti-disturbance measures assurethis system's stability and reliability.

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Key concepts: Computer science, Microcontroller, Serial communication, Data acquisition, Software, Computer hardware, Embedded system, Reliability (semiconductor)