Digital multi-point temperature measuring system and achieving method

Abstract

The invention relates to a digital multi-point temperature measuring system and an achieving method. A power module is respectively connected with a digital temperature sensor, a computing control module, a communication module, an alarming module and a display module, the digital temperature sensor is respectively connected with the communication module, the alarming module and the display module through the computing control module, and the communication module is connected with a computer; after an ID number, an alarming line, an alarming return difference and an alarming method of an instrument are set and the sensor is logged in, the instrument can work. Data of the sensor are converted into temperature numerical value through a single-chip microcomputer and compared with the set alarming line, the temperature value is transmitted to the display module to be displayed by the single-chip microcomputer, if alarming is needed, the single-chip microcomputer controls the alarming module to give out an alarm, and if communication is needed, the single-chip microcomputer controls the communication module to be in communication with the computer. Thus, stability of signals in the transmission process is improved, the size of the instrument is reduced, requirements for a power source are lowered, mutual effects between circuits are reduced, and temperature information can be observed remotely.

Description

technical field [0001] The invention relates to a digital multi-point temperature measurement system and its realization method, which are used for the monitoring system and its realization method of measuring, displaying and controlling multi-point temperature in the case of product production and material storage. Background technique [0002] At present, the temperature measuring instruments used in industrial control, material storage and other occasions mainly use thermocouples and thermal resistances to detect temperature, and then convert the analog signals to display devices such as instruments. Thermocouples and thermal resistors sense temperature changes to generate analog signals. The analog signals are transmitted to the instrument through wires. The analog signals need to be converted into digital signals through the amplification circuit and A / D conversion circuit in the instrument, and then sent to the single-chip microcomputer. The single-chip microcomputer is...

Images