Work Machine Alarm Control Based on Object Detection Modes
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Solution Overview
Problem
Inappropriate setting of alarms in work machines can lead to discomfort for operators, as alarms may be set inappropriately, affecting their operation and safety.
Innovation Solution
A surroundings monitoring system for work machines that includes an object detection device, an operator alarm device, and a processor to set control modes for restricting or enabling operations based on detected objects, and to enable or disable alarms accordingly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the alarm is always set to output when an object is detected, then safety is improved, but operator comfort deteriorates due to inappropriate alarms
Solution Approach 1:
The alarm output is made dynamic by enabling or disabling it based on the control mode. When the control mode is enabled, the alarm outputs to warn the operator; when the control mode is disabled, the alarm is disabled. This dynamic adjustment resolves the contradiction between maintaining safety through alarm output and ensuring operator comfort by avoiding inappropriate alarms.
2Ease of operation
If the alarm setting is made adjustable by the operator, then operator comfort is improved, but inappropriate settings may occur reducing safety
Solution Approach 1:
The system uses feedback from the control mode setting to automatically adjust the alarm output. The processor detects the control mode (enabled or disabled) and accordingly enables or disables the alarm device. This feedback mechanism ensures that the alarm setting appropriately reflects the current operational context, preventing inappropriate settings while maintaining operator comfort.
3Reliability
If the control mode restricts work machine operation when an object is detected, then safety is improved, but productivity deteriorates
Solution Approach 1:
The control mode provides dynamic control over work machine operation restriction. When the control mode is enabled, the work machine operation is restricted upon object detection to ensure safety. When the control mode is disabled, the work machine operation is not restricted, allowing continuous operation and maintaining productivity. This dynamic adjustment resolves the contradiction between safety and productivity.
Data Source
AI summary
A surroundings monitoring system for a work machine includes: an object detection device that detects an object around the work machine including a cab; an external alarm device disposed outside the cab; an operator alarm device disposed inside the cab; and a processor. The processor sets, on the basis of input data for setting a control mode of the work machine from an input device, a control mode for controlling an operation of the work machine at a time when the object is detected to either an enabled mode in which at least a part of the operation of the work machine is restricted or a disabled mode in which the operation of the work machine is not restricted. The processor enables or disables the operator alarm device on the basis of the control mode that has been set.