Forklift Marker Detection for Low-Load Storage Space Updates
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Solution Overview
Problem
The existing storage/retrieval control systems require complex sensor installation and maintenance, and experience increased communication loads with decreased speeds when a photographing unit on a moving forklift captures markers and transmits information.
Innovation Solution
An information processing system with a client device on the forklift that continuously photographs and transmits marker information only when the marker size crosses a predetermined threshold, reducing unnecessary communication and eliminating the need for additional sensors.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If a photographing unit on a moving forklift continuously photographs and transmits all marker information, then complete storage space information can be obtained, but communication amount increases and communication speed decreases
Solution Approach 1:
The patent extracts only the essential information (marker information causing storage space changes) from the continuous photographing data, rather than transmitting all captured images. This selective extraction reduces communication load while maintaining information completeness about storage space status.
Solution Approach 2:
Instead of continuous transmission of all photographed data, the system transmits only partial information - specifically when marker detection indicates a change in storage space status. This partial action approach maintains necessary information flow while reducing overall communication volume.
2Loss of information
If a photographing unit on a moving forklift continuously photographs and transmits all marker information, then complete storage space information can be obtained, but communication amount increases
Solution Approach 1:
The system extracts only the necessary marker information that indicates storage space changes, filtering out redundant data. This extraction principle reduces the quantity of transmitted information while preserving completeness of storage space status.
Solution Approach 2:
Instead of transmitting original image data, the system transmits extracted marker information as a simplified copy or representation of the visual data. This copying approach reduces communication amount while maintaining the essential information about storage space changes.
3Loss of information
If sensors are installed to detect forklift placement at predetermined locations, then accurate storage space information can be obtained, but device complexity and installation work increase
Solution Approach 1:
The patent replaces the mechanical sensor-based detection system with an optical photographing and image recognition system. The photographing unit captures images and marker information is extracted through image processing, eliminating the need for physical sensors at storage locations while maintaining detection accuracy.
Solution Approach 2:
The photographing unit on the forklift serves multiple functions: it captures images for marker recognition, tracks storage space changes, and provides visual documentation. This multi-functional approach replaces the need for dedicated sensors while achieving the same information accuracy.
Data Source
AI summary
An information processing system includes a client device provided in a moving body and a server device. The client device includes a photographing controller configured to control a photographing unit provided in the moving body to continuously perform photographing and a first transmitter configured to transmit information on a marker photographed in a photographed image to the server device when a size of a marker photographed in the photographed image photographed by the photographing unit is determined to have varied to cross a predetermined threshold value. The server device includes a first storage controller configured to control a storage unit to store the information on the marker transmitted by the first transmitter.