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Method, device, equipment and storage medium for abnormal detection of nozzle

An anomaly detection and nozzle technology, which is applied in printing and other directions, can solve problems such as high cost and complex hardware structure, and achieve the effect of convenient detection and low cost

Active Publication Date: 2021-04-27
SENDA SHENZHEN TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The main purpose of the present invention is to propose a nozzle abnormality detection method, device, equipment and storage medium, aiming to solve the technical problems of complex structure and high cost of existing nozzle abnormality detection hardware

Method used

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  • Method, device, equipment and storage medium for abnormal detection of nozzle
  • Method, device, equipment and storage medium for abnormal detection of nozzle
  • Method, device, equipment and storage medium for abnormal detection of nozzle

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0050] The invention provides a method for detecting abnormality of the nozzle, such as figure 1 As shown, the method includes:

[0051] S1. Collect the characteristic parameters of the output waveform of the nozzle;

[0052] In order to collect the nozzle output waveform, an acquisition circuit can be set on each nozzle, and the nozzle output waveform data can be collected in real time through the acquisition circuit. Specifically, an acquisition circuit can be connected to the interface where each nozzle outputs the waveform voltage, and the nozzle voltage can be collected in real time through the acquisition circuit.

[0053] Specifically, in this embodiment, the single-chip microcomputer used is used to collect the voltage output by the nozzle, and the output waveform voltage is first stepped down, and then introduced to the ADC (Analog-to-Digital Converter, analog-to-digital conversion) pin of the single-chip microcomputer, The actual voltage value is converted into a n...

Embodiment 2

[0075] Embodiment 2 of the present invention provides a nozzle abnormality detection method, the method comprising:

[0076] S101. Collect the output waveform characteristic parameters of the nozzle.

[0077] Wherein, the characteristic parameter is the slope of the segmented waveform, and the characteristic parameter of the output waveform of the collecting nozzle includes:

[0078] S1011, collecting the output waveform data of the nozzle;

[0079] The specific collection method can be directly collected by controlling the collection circuit of each nozzle by a single-chip microcomputer, or can be collected by a method such as step S11.

[0080] S1012. Divide the output waveform into a plurality of segmented waveforms according to the slope of the waveform;

[0081] Such as image 3 As shown, the output waveform contains three segments with different slopes: AB, BC, and CD, then the output waveform can be divided into three segmented waveforms: segmented waveform AB, segme...

Embodiment 3

[0089] Embodiment 3 of the present invention provides a nozzle abnormality detection method, the method comprising:

[0090] S201. Collect the characteristic parameters of the output waveform of the sprinkler head.

[0091] Wherein, described characteristic parameter is the fitting equation of output waveform, and described acquisition nozzle output waveform characteristic parameter comprises:

[0092] S2011, collecting the output waveform data of the nozzle;

[0093] The specific collection method can be directly collected by controlling the collection circuit of each nozzle by a single-chip microcomputer, or can be collected by a method such as step S11.

[0094] S2012. Perform fitting according to the output waveform data to obtain a fitting equation of the output waveform.

[0095] S202. Comparing the characteristic parameters of the output waveform with the characteristic parameters of the input waveform;

[0096] Specifically, before step S1, characteristic parameters...

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Abstract

The invention discloses a nozzle abnormality detection method, device, equipment and storage medium, and relates to the technical field of inkjet printing. The method includes: collecting characteristic parameters of the output waveform of the nozzle; combining the characteristic parameters of the output waveform with the input waveform comparing the characteristic parameters; if the characteristic parameters of the output waveform are inconsistent with the characteristic parameters of the input waveform, the nozzle is abnormal. The present invention collects the characteristic parameters of the output waveform of the nozzle; compares the characteristic parameters of the output waveform with the characteristic parameters of the input waveform; if the characteristic parameters of the output waveform are inconsistent with the characteristic parameters of the input waveform, it indicates that the nozzle is abnormal . The nozzle abnormality detection method, device, equipment and storage medium of the present invention only need to collect and compare the output waveforms of the nozzles without other hardware assistance, and have the advantages of convenient detection and low cost.

Description

technical field [0001] The present invention relates to the technical field of inkjet printing, in particular to a method, device, equipment and storage medium for detecting an abnormality of a nozzle. Background technique [0002] Inkjet printing technology refers to the technology of spraying ink droplets onto the printing medium through the nozzles on the nozzle to obtain images or texts. This technology is non-contact printing, which has the advantages of fast printing speed, low pollution, bright colors and long storage period of images. , can adapt to a variety of printing media and other technical advantages, and this technology has been widely used in advertising production, office stationery, printing proofing and other fields. [0003] Most of the existing inkjet printers use piezoelectric crystals to stimulate the nozzles to discharge ink. The nozzles are composed of driver chips, piezoelectric ceramics (ceramic cavity), electrodes, nozzles and cover plates. The ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B41J2/135B41J2/165
CPCB41J2/135B41J2/16579
Inventor 张浩翔黄中琨陈艳
Owner SENDA SHENZHEN TECH CO LTD