Transport unit and method for operating the same
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Solution Overview
Problem
Self-service checkout systems face inefficiencies in throughput and error rates due to rigidly sized support areas on conveyor belts, which cannot adapt to goods of varying sizes, leading to suboptimal packing density and increased error rates.
Innovation Solution
A transport unit with a detector unit that identifies the rear edge of goods, allowing dynamic adjustment of support areas and the creation of a blocking area between them, ensuring variable length support areas that adapt to goods size, combined with a marking unit for visual feedback using light sources to highlight support and restricted areas.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If support areas are assigned with a constant, predefined size, then the marking unit can be rigidly assigned to the conveyor belt, but the support areas cannot be adjusted to the size of goods and the throughput is limited
Solution Approach 1:
The patent applies dynamics by making the support area boundaries movable rather than fixed. The marking unit is decoupled from the conveyor belt and can be dynamically repositioned along the transport direction based on the detected size of each good, allowing support areas to adapt their length to accommodate goods of varying dimensions while maintaining high throughput
2Reliability
If the distance between individual goods is increased to ensure reliable scanning, then the error rate is reduced, but the throughput of goods is limited
Solution Approach 1:
The patent applies local quality by creating variable spacing between goods based on their individual characteristics. Instead of applying a uniform distance between all goods, the system detects each good's size and creates appropriate spacing locally, ensuring reliable scanning for each item while maximizing the overall throughput by minimizing unnecessary gaps
3Ease of operation
If very large goods are placed on the conveyor belt, then customer convenience is improved, but the goods can protrude beyond the limits of the support areas
Solution Approach 1:
The patent applies dynamics by making the support area boundaries adaptable rather than fixed. The marking unit can be repositioned along the transport direction to create support areas that match the actual size of each good, allowing large goods to be accommodated without protruding beyond limits while maintaining precise positioning for reliable scanning
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
This solution enhances automation, reduces error rates, increases packing density, and improves throughput by allowing support areas to adapt to goods of any size, while providing clear visual cues for customers, thus simplifying the placement process.
Implementation Method 1
the detector unit has an optical sensor for non-contact detection of the rear edge of the goods
Implementation Method 2
the marking unit has a plurality of light sources arranged laterally adjacent to the goods support surface
Data Source
Figure 1~2
Figure 3~4
AI summary
The transporting unit (1) has a conveyor belt (6) that is assigned to a detector unit (4) for detecting a rear goods edge (9) of goods (5). A control unit interacts with a marking unit and the detector unit such that a locking area (18) is formed between a front supporting area (15) and a rear supporting area (16). An independent claim is also included for a method for dividing a goods support surface of a conveyor belt of transporting unit in multiple supporting areas.