Fixed-Mount Ticket Capture With Real-Time Image Feedback

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Solution Overview

Problem

Existing access control systems face delays and inefficiencies due to presentation errors when capturing graphic ticket codes, particularly with mobile devices, as users are unaware of the errors and cannot correct them promptly, leading to reduced throughput and potential schedule disruptions.

Innovation Solution

A permanently mounted ticket capture device with a camera-based system that displays captured image data in real time, allowing users to correct presentation errors immediately, and includes error detection and feedback mechanisms to enhance the reading process.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Extent of automation

If a camera-based capture device is used to capture graphic ticket codes, then the reading process can be automated, but presentation errors occur when users cannot see or correct the captured images, leading to delays

Engineering Contradiction:
Improveautomation of reading processVSAvoidreading delays
Core Design Contradiction:
Extent of automationVSLoss of time

Solution Approach 1:

The patent implements a feedback mechanism by displaying the captured image on a display device visible to the user. This allows users to see what the camera has captured and immediately correct any presentation errors such as improper positioning, focus, or lighting, thereby eliminating delays caused by unsuccessful capture attempts.

Inventive Principle:
Principle #23Feedback

Solution Approach 2:

The display device acts as an intermediary between the camera-based capture device and the user. It translates the captured image data into a visual format that the user can perceive and act upon, enabling the user to understand and correct presentation errors without directly interacting with the camera system.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Device complexity

If users are not provided with visual feedback of captured images, then the system remains simple, but users cannot correct presentation errors promptly

Engineering Contradiction:
Improvesystem simplicityVSAvoidthroughput
Core Design Contradiction:
Device complexityVSProductivity

Solution Approach 1:

By introducing a display device that shows captured images to users, the system provides immediate visual feedback. This enables users to understand what went wrong during capture and make corrections, significantly improving throughput without adding substantial complexity to the overall system architecture.

Inventive Principle:
Principle #23Feedback

3Measurement precision

If the capture device requires precise positioning of the ticket code, then reading accuracy improves, but users struggle to achieve correct positioning without visual guidance

Engineering Contradiction:
Improvereading accuracyVSAvoiduser ability to position ticket
Core Design Contradiction:
Measurement precisionVSEase of operation

Solution Approach 1:

The display device provides real-time visual feedback showing whether the ticket code is properly positioned within the capture area. Users can see the captured image and adjust their positioning accordingly, making it easy to achieve the precise positioning required for accurate reading without complex instructions or training.

Inventive Principle:
Principle #23Feedback

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

Significantly reduces reading delays by enabling users to correct presentation errors promptly, thereby improving throughput and maintaining schedule reliability in access control systems.

Implementation Method 1

at least one camera-based capture device configured to capture images of a graphic ticket code of a ticket medium within a capture range of the camera-based capture device

Methodology Applied
Scientific EffectOptical detection: Photoelectric Effect

Data Source

PatentEP4187511B1Fixedly mounted ticket capture device for an access control system
Publication Date: 2025.10.22 SCHEIDT & BACHMANN GMBH
  • EP4187511B1 patent drawingFigure 1
  • EP4187511B1 patent drawingFigure 2
  • EP4187511B1 patent drawingFigure 3a~3f

AI summary

The application relates to a permanently installed ticket capture device (100, 200, 400, 500, 600) of an access control system (560, 660), comprising at least one camera-based capture device (102, 202, 402, 502, 602), configured for capturing images of a graphic ticket code of a ticket medium (452, 552) in a capture area (108, 208, 408) of the camera-based capture device (102, 202, 402, 502, 602) and for creating captured image data from the captured images, and at least one evaluation device (104, 204) communicatively coupled with the camera-based capture device (102, 202, 402, 502, 602), configured at least for receiving the captured image data from the camera-based Capture device (102, 202, 402, 502, 602) and for extracting a data content of the graphic ticket code from the received captured image data, and at least one with the camera-based capture device (102, 202, 402, 502,602) Communicatively coupled optical display device (106, 206, 406, 506, 606), configured to receive the captured image data from the camera-based acquisition device (102, 202, 402, 502, 602) and to display the received captured image data as images.