Digital module for electronic weighing device

Abstract

The invention, which belongs to the technical field of the electronic module design, discloses a digital module for an electronic weighing device. The digital module is composed of a signal amplifier, an analog-to-digital converter, a microprocessor, a memory, a 485 communication interface. An analog signal is inputted into the signal amplifier; the analog-to-digital converter converts the analog signal into a digital signal; the microprocessor converts the signal and then provides the converted signal to a single-chip microcomputer directly; the single-chip microcomputer carries out storage and processing; after data processing by the single-chip microcomputer, the signal is transmitted to the 485 chip directly; and then the 485 chip transmits the signal to an instrument. According to the digital module, full-automatic compensation, low power consumption, and high anti-interference capability are realized; the module can work at high speed; the memory chip is saved; and the module size is reduced. The digital module can work in an environment with a temperature from minus 40 DEG C to 105 DEG C; elements on the module can be protected; the PCB space is saved; data loss can be prevented after power failure; signal outputting becomes stable and reliable; and the transmission distance is long.

Description

technical field [0001] The invention relates to the technical field of electronic module design, in particular to a digital module of an electronic weighing device. Background technique [0002] Traditional electronic weighing devices are mostly detected by analog signals, which reflect that information parameters are continuous signals within a given range, or within a continuous time interval, the characteristic quantities representing information can be expressed as arbitrary values. Signal, weak anti-interference ability, poor automatic compensation ability, easy loss of data, poor signal output stability, especially long-distance transmission is more unstable, so design a fully automatic compensation, low power consumption, strong anti-interference ability, can High-speed operation, save memory chips, reduce module volume, save PCB space, data will not be lost after power failure, signal output is stable and reliable, and digital modules for electronic weighing devices ...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to overcome the defects of weak anti-interference ability, poor automatic compensation ability, easy loss of data, poor signal output stability, and especially unstable long-distance transmission in the prior art when using analog signal detection, and to design a The digital module of the electronic weighing device realizes automatic compensation, low power consumption, strong anti-interference ability, high-speed operation, saves memory chips, reduces module volume, saves PCB space, does not lose data after power failure, and has stable signal output Reliable, long transmission distance

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