LSP112 · Roll system and continuous web · Film, foil and composite materials
Reusable modules

Axis return verification after roll change

Facing the film rewinding reel, taking the light spot position on the target surface as the observation route, the target return error is intended to be output. The page is for project evaluation and does not mean that the development has been completed or has been accepted on site.

Project Judgment Summary

Product/DeviceFilm rewinder
Measure routeXY · Target surface light spot position
Ability GradingReusable modules
Verification statusThe actual machine/product domain acceptance of this scenario has not been carried out
Scene nature:Similar potential application scenarios for laser spots. The potential application scenario has not yet been developed into a complete product system; the actual machine/product domain acceptance of this scenario has not been carried out. The actual product/product domain acceptance quantity in catalog statistics is 0.

Business tasks and intended output

target audience
Film rewinding reel: light spot position on target surface
pseudo output
target return error
Applicable conditions
Axial/radial errors require separate tooling
priority
General extension. Verification needs to be completed according to the listed optical conditions, calibration and samples.

Imaging input and algorithm routing

Imaging and device conditions

Fix the camera and target surface, record the exposure and gain, and cover the light spot and background in the field of view. Point measuring heads, angle/speed encoders for rolls or webs

XY · Target surface light spot position

Fix the camera and target surface, record exposure and gain, and cover the light spot and background in the field of view

  • A101Adaptive threshold laser spot grayscale centroid
  • A107Laser spot quality and usability diagnostics
  • A112Laser spot two-dimensional repeatability and coverage ellipse

Existing algorithmic evidence:A101–A112 only complete analytical synthesis spot and controlled geometry verification; see laser_spot_benchmark.json

Current capabilities and capabilities to be supplemented

Reusable modules

Existing modules can be used as hosts

Existing light point positioning, quality diagnosis or statistical modules can be used as the main calculation basis; ROI, calibration, threshold and interface verification still need to be completed by device.

Gaps in this scenario:ROI, ruler/plane calibration and reference point definition are required; only the two-dimensional position of the target surface can be directly observed. Axial/radial errors require separate tooling. Point measurement coverage is determined by the sampling spacing

Route-level gaps:Requires ROI, ruler/plane calibration and reference point definition; can only directly observe the two-dimensional position of the target surface

"Reusable modules" only describe the relative development volume and do not constitute a commitment to accuracy, tempo, stability or delivery time.

Verification methods and acceptance prerequisites

Test independently with a two-dimensional displacement stage and a fixed reference point, reporting center error P95, missed detections and false detections. Repeated measurements of thick sheets, standard rolls and speed steps

Acceptance itemsEvidence required for project confirmationCurrent status
Inputs and samplesReal device original frames, normal/abnormal samples, exposure and light path conditions, sample grouping and set asideNot provided, waiting for project input
Magnitude and ErrorIndependent reference value, calibration record, error statistical caliber and mutual confirmation thresholdNot verified
Exceptions and boundariesAnticipated handling of missed detections, false detections, overexposure, occlusion, reflection, out-of-view and communication abnormalitiesTo be defined
System integrationInterface, time synchronization, deployment platform, tempo, log, version and continuous running recordNot integrated

Evidence sources and citation boundaries

The source supports measurement principles or similar applications; the module combination, device and acceptance method in this scenario are engineering derivation, and product verification has not been completed.

LS-S05 · Original factory/scientific research institution/original paper

Micro-Epsilon Thickness Application

Displacement sensor combination thickness measurement; different measurement principles should be selected separately

Verification date: 2026-10-24

View original public information →
LS-S08 · Original factory/scientific research institution/original paper

Easy-Laser Industrial Alignment Applications

Laser alignment categories for shafts, equipment and industrial installations

Verification date: 2026-10-24

View original public information →
Source usage scope:The public information is used to support the measurement principle or the existence of similar applications, and does not prove that this scenario has been developed, deployed or accepted by Jishi Technology.
Project consultation

Define the Development Scope with Samples and Device Requirements

Axis return verification after roll change

Please describe the task object, original picture or video, target indicators, device platform, interface and sample situation.

Phone: 13910119357
xuzhiyang0928@gmail.com

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