CN-122016850-A - Quality tracing method and system for paper product production process based on block chain

CN122016850ACN 122016850 ACN122016850 ACN 122016850ACN-122016850-A

Abstract

The invention discloses a quality tracing method and a quality tracing system for a paper product production process based on a blockchain, and relates to the technical field of industrial production quality management, comprising the following steps of correspondingly arranging time marks and detection spectrums of gift box production links around a quality tracing target, establishing a reflection area distribution diagram, and outputting a gold stamping position list; based on the gold stamping position list, the incidence direction of the detection light source is adjusted angle by angle, the reflected signal intensity under different angles is collected, the overexposure area and the detection blank area are defined according to the collected reflected signal intensity, and the reflection shielding record is generated. The invention realizes dynamic incidence and compensation of the light source of the gold stamping area by constructing the distribution map of the light reflecting area and multi-angle reflection acquisition, avoids overexposure and empty window detection, improves detection stability, and synchronously links correction data and production time marks by controlling the data filling port and rhythmized light source to form a complete quality tracing closed loop so as to realize the credible tracing of the whole paper product production process.

Inventors

MAO PENG
Tan Tengbo
LIU CHUNFENG

Assignees

东莞宏晋实业有限公司

Dates

Publication Date: 20260512
Application Date: 20260209

Claims (10)

1. The quality tracing method for the paper product production process based on the block chain is characterized by comprising the following steps of: the method comprises the steps of correspondingly sorting time marks of gift box production links and detection spectrums around a quality tracing target, establishing a reflection area distribution map, and outputting a gold stamping position list; Based on the gold stamping position list, the incidence direction of the detection light source is adjusted angle by angle, the reflected signal intensity under different angles is collected, an overexposure area and a detection blank area are defined according to the collected reflected signal intensity, and a reflection shielding record is generated; based on the reflection shielding record, comparing the batch image data with production time parameters, identifying the missing positions of defects in the detection blind areas, generating a gap identification table, and determining a data filling inlet; According to the data filling inlet, the motion rhythm and polarization switching sequence of the detection light source are re-planned, and the sampling pause period and the dislocation buffering period are set to generate a reflection inhibition scheme; And executing rhythmic detection control according to a reflection inhibition scheme, correcting a detection picture through alternating weak light atomization irradiation, periodic polarization rotation and a jumping type exposure window, recovering the integrity of an image of a gold stamping area in the detection operation process, and synchronizing corrected detection data with a production time mark to be uploaded to a block chain account book.
2. The blockchain-based paper product production process quality traceability method according to claim 1, wherein the step of generating the gold stamping position list is as follows: in the running process of the gift box production line, time node marking is carried out on each production link according to the gift box process sequence, and the detection spectrum data are synchronously collected so as to ensure the strict synchronization of the time marking and the spectrum data; Based on the reflection characteristics of the detection spectrum, constructing a corresponding mapping relation between the time mark and the spectrum data, so that the detection spectrum at each moment can be accurately positioned to a specific position in a production link; Constructing a reflection area distribution map according to the corresponding relation between the time mark and the spectrum, and marking the area with the reflection intensity exceeding a threshold value as a reflection area by using the space coordinate of the surface of the gift box as a reference; And outputting a gold stamping position list containing coordinate information of the gold stamping areas based on the distribution map of the light reflecting areas, and attaching a time mark to each gold stamping area, so that each position data can trace back to a specific time node and a detection link of the gift box production line.
3. The blockchain-based paper product production process quality traceability method according to claim 2, wherein the reflection occlusion record generation step is as follows: After the output gold stamping position list is obtained, determining the relative position relation between the detection light source and the surface of the gift box by taking the coordinate information of the gold stamping area as a reference, and planning the incidence angle and the irradiation path of the light source according to the central coordinate and the boundary range of the gold stamping area; After the angle-by-angle adjustment of the incidence direction of the light source is completed, the reflected signal intensity under different angles is acquired, and the reflected light intensity, the reflected duration, the spectral energy distribution and the reflected position coordinates corresponding to each incidence angle form a complete data set; Analyzing the reflection characteristics of the gold stamping area according to the acquired reflection signal intensity data, so as to define an overexposed area and a detection blank area, and determining the space position by taking coordinate information in a gold stamping position list as an index; And generating a reflection shielding record by combining the reflected signal intensity data and the gold stamping position list so as to record the corresponding relation among the region coordinates, the reflection intensity threshold value, the incident angle parameters and the reflection interference.
4. The blockchain-based paper product production process quality tracing method according to claim 3, wherein the light source irradiation intensity is kept stable in the collection process of the reflected signal intensity, so that the change of the reflected signal intensity is only generated by the incident angle difference, and the adjustment of the incident direction of the light source is synchronously performed with the collection of the reflected signal, so as to ensure that the gold stamping area forms continuous reflected data under multi-angle irradiation.
5. A blockchain-based paper product manufacturing process quality traceability method according to claim 3, characterized in that the notch identification table generation step is as follows: After the generated reflection shielding record is obtained, establishing a corresponding relation between the reflection shielding record and batch image data by taking the reflection interference range data as a basis, and realizing time synchronization and space alignment through production time parameters; Comparing the defect characteristics of the image data of the comparison batch according to the overexposed area and the detection blank area marked in the reflection shielding record so as to identify the positions of scratches, delamination and indentation defects in the detection blind area; Combining the space information in the reflection shielding record and the time parameter of the batch image data to generate a gap identification table, and classifying the defects according to the surface texture change characteristics; And determining a data filling inlet according to the defect coordinates and the time marks in the gap identification table, and setting a data filling trigger point and a time window by combining the light source incidence angle information to form a combined structure of the space coordinates, the time marks and the illumination parameters.
6. The blockchain-based paper product production process quality traceability method according to claim 5, wherein in the determining process of the data filling inlet, the incident angle information of the light source is synchronously matched with the time window parameter, and the incident direction and the irradiation path of the light source are adjusted at the filling trigger point according to the time sequence, so that the collected data cover the detection blank area and keep consistent with the original detection spectrum.
7. The blockchain-based paper product manufacturing process quality traceability method according to claim 5, wherein the glistening scheme generation step is as follows: Based on defect coordinate information, time marks and illumination parameters in a data filling inlet, an initial planning model of the movement rhythm of the light source is established, and the light source illumination track is redesigned according to defect distribution and the position of the reflective interference area; Planning a polarization switching sequence according to illumination parameters in a data filling inlet, and controlling a polarization rotation rhythm by taking a time mark as an index, so that the illumination direction and the polarization direction of a light source are in a space synergistic effect to disperse reflected energy; setting a sampling pause period and a dislocation buffer period according to the time mark and the production rhythm parameter in the data filling inlet, so that detection sampling is temporarily stopped and delayed to resume in an illumination unstable stage to ensure data continuity; And generating a reflection inhibition scheme by integrating the light source movement rhythm, the polarization switching sequence, the sampling pause period and the dislocation buffer period to form an illumination control time line and realize illumination balance and complete imaging.
8. The blockchain-based paper product production process quality traceability method according to claim 7, wherein when the reflection inhibition scheme is generated, the light source disperses reflection energy in time and space dimensions by combining polarized light alternate irradiation and time dislocation sampling in the irradiation process of the gold stamping area, so that dynamic balance of illumination intensity is realized, and continuity and integrity of images are maintained in a detection picture.
9. The blockchain-based paper product production process quality traceability method of claim 7, wherein rhythmic detection control is performed according to a reflection suppression scheme, detection frames are modified by alternating dim light atomized illumination, periodic polarization rotation, and jump exposure windows, and the modified detection data is synchronized with a production time stamp and is uploaded to a blockchain ledger: Starting an initialization process of rhythmic detection control based on light source control parameters in a reflection inhibition scheme, and enabling illumination to form a dynamic controllable rhythmic illumination mode through coordination of light source movement rhythms, polarization switching sequences and sampling time sequences; executing an alternate weak light atomization irradiation stage, adjusting the output power of a light source, and enabling the light to form multi-directional scattering on the surface of the gift box through atomization diffusion so as to reduce the specular reflection intensity; Performing periodic polarization rotation control to enable the light source to complete polarization direction change within a set time interval so as to disperse reflected light energy and keep imaging balance; And executing skip exposure window correction, dynamically compensating the overexposure and empty window image segments, and synchronizing the corrected detection data with the production time mark to be uplink to a block chain account book so as to realize complete tracing of the detection data.
10. The blockchain-based paper product production process quality tracing system for realizing the blockchain-based paper product production process quality tracing method according to any one of claims 1-9, which is characterized by comprising a reflection distribution construction module, a reflection characteristic acquisition module, a notch identification generation module, a light source adjustment planning module and an image correction tracing module: the light reflection distribution construction module is used for correspondingly arranging time marks and detection spectrums of the gift box production links around the quality traceability target, establishing a light reflection area distribution map and outputting a gold stamping position list; The reflection characteristic acquisition module is used for adjusting the incidence direction of the detection light source angle by angle based on the gold stamping position list, acquiring the reflection signal intensity under different angles, defining an overexposure area and a detection blank area according to the acquired reflection signal intensity, and generating a reflection shielding record; The notch identification generation module is used for identifying the missing positions of defects in the detection blind areas based on the reflection shielding records, comparing the batch image data with the production time parameters, generating a notch identification table and determining a data filling inlet; the light source adjustment planning module is used for re-planning the movement rhythm and polarization switching sequence of the detection light source according to the data filling inlet, setting a sampling pause period and a dislocation buffering period and generating a reflection inhibition scheme; And the image correction tracing module executes rhythmic detection control according to a reflection inhibition scheme, corrects a detection picture through alternating weak light atomization irradiation, periodic polarization rotation and jumping type exposure windows, restores the integrity of the image of the gold stamping area in the detection operation process, and synchronously links the corrected detection data and the production time mark into the blockchain ledger.

Description

Quality tracing method and system for paper product production process based on block chain Technical Field The invention relates to the technical field of industrial production quality management, in particular to a quality tracing method and system for a paper product production process based on a block chain. Background The quality traceability of the paper product production process based on the blockchain refers to that in the whole process of paper product manufacture, printing and packaging, the multi-source data of links such as production, detection, packaging, warehouse-out and the like are subjected to trusted uplink certification by utilizing the distributed account book and non-tamperable characteristics of the blockchain, and information such as optical detection, environmental parameters, batch numbers, time sequences and the like is acquired, compared and abnormal identification is carried out by a big data processing technology, so that a traceable quality system covering the whole process is constructed. The method takes main force products such as paper boxes, gift boxes, handbag and the like as cores, analyzes the duty ratio, energy consumption, rework rate and process difference of different paper products in production through big data aggregation, extracts key quality characteristic factors, writes the key quality characteristic factors into a blockchain ledger with structured data, and realizes full-period quality tracking from raw material factory entering to finished product warehouse leaving. Meanwhile, the system can find potential risk points and improvement spaces in long-tail products (such as documents, photo albums, wall calendars and the like) by utilizing a data mining algorithm, and support managers to optimize process layout and detection priority according to data weights, so that a new paper product production quality tracing paradigm with big data intelligent analysis as support and blockchain trusted records as cores is formed. The prior art has the following defects: In the prior art, the gift box outer package is often made of a high-reflection gold stamping material so as to improve the appearance texture, but the material has high surface reflectivity, and is easy to cause strong reflection or shielding of a detection spectrum in the optical detection process. When the detection light irradiates to the gold stamping area, the reflected light can cause overexposure or signal saturation of the imaging probe, so that an image blank window is formed in the area by the detection system. At this time, the system cannot accurately identify fine defects such as scratches, delamination, deviation and the like in the gold stamping area, and missing or misjudgment occurs in detection data, so that detection records are inconsistent with actual quality states. Furthermore, in the paper product quality traceability based on the blockchain, the detection blind area is easy to cause missing of uplink data, and a traceable account book notch is formed, so that the quality traceability chain of the product is incomplete, and the follow-up batch verification and responsibility positioning are affected. The above information disclosed in the background section is only for enhancement of understanding of the background of the disclosure and therefore it may include information that does not form the prior art that is already known to a person of ordinary skill in the art. Disclosure of Invention The invention aims to provide a quality tracing method and a system for a paper product production process based on a blockchain, which are used for solving the problems in the background technology. In order to achieve the aim, the invention provides the following technical scheme that the quality tracing method for the paper product production process based on the blockchain comprises the following steps: The method comprises the steps of correspondingly sorting time marks of gift box production links and detection spectrums around a quality tracing target, establishing a reflection area distribution map, and outputting a gold stamping position list containing coordinate information of a gold stamping area; Based on the gold stamping position list, the incidence direction of the detection light source is adjusted angle by angle, the reflected signal intensity under different angles is collected, an overexposure area and a detection blank area are defined according to the collected reflected signal intensity, and a reflection shielding record containing reflection interference range data is generated; Based on the reflection shielding record, comparing the batch image data with production time parameters, identifying the missing positions of defects in the detection blind areas, generating a gap identification table containing defect coordinates and time marks, and determining a data filling inlet for optical detection compensation; according to the data filling inlet, the motion rhythm and