Handheld Crane Controller Display for Safer Load Movement
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Solution Overview
Problem
Existing crane systems operated by a controller held in the operator's hand lack sufficient information display, making it difficult for operators to efficiently and safely maneuver the crane due to the need to look away from the controller to view high-mounted display devices.
Innovation Solution
A display unit is integrated into the controller, providing text and image-based information about the crane's operation, allowing operators to maintain focus on their surroundings and reducing the risk of accidents by displaying critical information intuitively and in a user-friendly manner.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If a display device is mounted high up (e.g., on the hoist or ceiling), then information can be provided to the operator, but the operator must look up at the display while checking the controller, making operation difficult and reducing safety
Solution Approach 1:
The patent merges the display device with the controller by mounting the display directly on the controller housing. This integration allows the operator to view crane operation information and controller indicators simultaneously in the same field of view, eliminating the need to shift gaze between separate devices and thereby maintaining both information provision and operational convenience
2Reliability
If alarm devices are installed on the ceiling to display movement direction, then safety information is provided, but operators must concentrate on the load in front of them, making it very difficult to check the alarm device
Solution Approach 1:
The patent combines safety alarm devices with the controller assembly, positioning them so that movement direction indicators and alarm signals are displayed within the operator's immediate view while holding the controller. This integration ensures that safety information is continuously available without requiring the operator to divert attention from the load
3Loss of information
If a display device is attached to the hoist, then crane operation information can be displayed, but the operator must look up at the display device located high up, making operation difficult
Solution Approach 1:
The patent integrates the display device into the controller assembly, positioning it on the controller housing. This placement ensures that all crane operation information is displayed within the operator's immediate field of view while holding the controller, eliminating the time loss associated with shifting gaze to separately mounted display devices located elsewhere in the workspace
Data Source
AI summary
A display is attached to a hand-held controller for operating an overhead crane. When an operator operates the crane using the controller, a system control device for a crane system acquires operation details such as instructions on the direction of movement from the controller, as well as position information from mobile terminals of workers other than the operator who are within the facility. Then, the display displays information to assist in the operation of the crane, such as an arrow indicating the direction of movement of the crane and the positions of the workers. By displaying the direction of movement on the display, the operator can easily notice when the crane is directed in the wrong direction, while by displaying the positions of the workers, the risk of coming into contact with them can be avoided, whereby the safety of the crane system can be improved.