Vehicle Window Barcode Authorization Reading System
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Solution Overview
Problem
Existing methods for determining vehicle authorization to use a traffic area are inconvenient, as they require drivers to manually hold RFID transponders close to reading devices, causing delays and are costly when using long-range RFID systems.
Innovation Solution
Storing authorization data as a barcode on a vehicle window-readable data carrier, which is scanned using a barcode reader, potentially integrated with a digital camera and lighting, allowing for reading at a distance with image processing to enlarge the barcode for accurate reading.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If RFID transponders are used with close-range reading devices, then authorization verification is reliable, but driver convenience deteriorates and processing time increases
Solution Approach 1:
The patent replaces the mechanical/close-proximity RFID reading system with an optical barcode reading system. Instead of requiring physical proximity between RFID transponder and reader, the invention uses optical cameras and image processing to read barcodes from a distance, substituting mechanical/electromagnetic field-based reading with optical-based reading.
Solution Approach 2:
The patent creates an optical copy (barcode) of the authorization data that can be read remotely. Instead of requiring direct electromagnetic communication via RFID, the system creates a visual representation of authorization data that can be captured by cameras and processed digitally, enabling remote verification.
2Ease of operation
If RFID reading distance is increased to several meters, then driver convenience improves, but system cost increases considerably
Solution Approach 1:
The patent uses inexpensive barcode stickers or labels as data carriers instead of costly long-range RFID infrastructure. The barcode data carriers are cheap to produce and apply, while the reading system uses standard digital cameras and image processing algorithms rather than expensive specialized RFID hardware.
Solution Approach 2:
The patent creates an optical copy (barcode) of the authorization data that can be read remotely. Instead of requiring direct electromagnetic communication via RFID, the system creates a visual representation of authorization data that can be captured by cameras and processed digitally, enabling remote verification.
3Length of stationary object
If barcode size is increased for remote reading, then reading distance improves, but visibility through the window deteriorates
Solution Approach 1:
The patent transitions from requiring large physical barcode dimensions to achieving effective remote reading through digital image processing. By capturing the barcode as an image and enlarging it computationally, the system allows small barcodes to be read from distant positions, adding the dimension of digital processing to overcome physical size limitations.
Solution Approach 2:
The patent replaces the mechanical/optical limitation of direct barcode viewing with digital image processing. Instead of requiring the barcode to be physically large enough to resolve at reading distance, the system captures the barcode image with a camera and uses software to enlarge and process it, substituting optical magnification with digital processing.
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
Enables quick, reliable, and efficient authorization verification with minimal driver effort, suitable for various traffic areas, reducing wait times and costs associated with long-range RFID systems.
Implementation Method 1
read with a barcode reader that passes the vehicle
Implementation Method 2
a lighting device is provided which illuminates the barcode
Implementation Method 3
a digital camera with a resolution of preferably more than one megapixel is preferably used, which takes the pane behind which the barcode is attached
Implementation Method 4
a digital camera with a resolution of preferably more than one megapixel is preferably used
Implementation Method 5
a lighting device is provided which illuminates the barcode behind the window of the vehicle
Data Source
AI summary
The method involves storing an authorization data as barcode in a data carrier (8), which is provided with a reading device that passes a vehicle (6) for reading the authorization data of the data carrier. A barcode-reading device is provided as reading device. The barcode-reading device lies on the data carrier in the vehicle by a panel (7). An independent claim is also included for a device for the execution of the detection method.