Work Machine Travel Restraint Using Revolving-Angle Object Detection
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Solution Overview
Problem
Existing work machines restrict the operation of the traveling portion regardless of the detection target object's direction, leading to operator annoyance.
Innovation Solution
A work-machine control system that integrates a detecting device on a revolving portion to detect objects in a monitoring area, using both detection results and revolving angle to control the traveling portion's operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the operation of the traveling portion is restricted when a detection target object is present in the monitoring area, then safety is improved, but the operator's operational freedom deteriorates
Solution Approach 1:
The patent applies local quality by differentiating the restraint control based on the spatial location of the detection target object. Instead of uniformly restricting all operations when an object is detected, the system selectively restricts only those traveling operations directed toward the object's location while allowing operations in other directions. This localized approach maintains safety针对 the detected object while preserving operational freedom for safe directions.
Solution Approach 2:
The patent implements dynamics by making the restraint control adaptive to the real-time revolving angle of the detecting device and the current position of the detection target object. As the revolving portion rotates and the object's position changes, the restricted operating directions are dynamically updated. This dynamic adjustment allows the system to respond flexibly to changing conditions, restricting operations only when necessary while maintaining operational freedom in safe directions.
2Area of stationary object
If the detecting device is disposed on the revolving portion to detect objects in all directions, then detection coverage is improved, but the system complexity increases
Solution Approach 1:
The patent applies universality by making the detecting device multi-functional through its mounting on the revolving portion. The same detecting device can detect objects in all directions around the work machine as the revolving portion rotates, eliminating the need for multiple separate detectors positioned at different locations. This single device performs the function of multiple detectors, achieving comprehensive detection coverage while reducing system complexity.
Data Source
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AI summary
[Problem] To provide a work-machine control method, a work-machine control program, a work-machine control system, and a work machine, that are less likely to annoy an operator. [Solution] The work-machine control method is a control method for a work machine 3 including a traveling portion 31, a revolving portion 32, and a detecting device 5, in which an operation of the traveling portion 31 is restrained on the basis of both a detection result of the detecting device 5 and a revolving angle of the revolving portion 32. The revolving portion 32 is located above the traveling portion 31 and is capable of revolving around a rotation axis along a vertical direction with respect to the traveling portion 31. The detecting device 5 is disposed in the revolving portion 32 and detects a detection target object Ob1 in a monitoring area A1 around the revolving portion 32.