Work Vehicle Alarm Control Based on Operator Posture
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Solution Overview
Problem
Existing work vehicles output alarms uniformly upon detecting obstacles, which can hinder the operator's actions and cause annoyance, especially when the operator releases their operation posture to visually check the work site.
Innovation Solution
A work vehicle equipped with a monitoring device, alarm device, posture detection unit, and control unit that controls the alarm based on the operator's posture, allowing the alarm to be silenced when the operator is not in an operation posture.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the alarm device outputs an alarm uniformly upon detecting an obstacle, then the safety monitoring function is improved, but the operator's visual check work is hindered and the operator feels annoyed
Solution Approach 1:
The alarm device dynamically adjusts its operation based on the detected posture state. When the operator is in a working posture, the alarm functions normally to ensure safety. When the operator is in a non-working posture (visual check), the alarm is stopped to avoid annoyance. This dynamic adaptation resolves the contradiction between maintaining safety monitoring and enabling comfortable visual checks.
Solution Approach 2:
The system changes the operational parameter of the alarm device based on the operator's posture state. The alarm output is switched between active and inactive states according to whether the operator is in a working or non-working posture. This parameter change allows the system to maintain safety when needed while avoiding disturbance during visual checks.
2Reliability
If the alarm device outputs an alarm upon detecting an obstacle, then the obstacle detection function is improved, but the operator's action is hindered when releasing operation posture
Solution Approach 1:
The alarm device dynamically adjusts its operation based on the detected posture state. When the operator is in a working posture, the alarm functions normally to ensure safety. When the operator is in a non-working posture (visual check), the alarm is stopped to avoid annoyance. This dynamic adaptation resolves the contradiction between maintaining safety monitoring and enabling comfortable visual checks.
Solution Approach 2:
The system changes the operational parameter of the alarm device based on the operator's posture state. The alarm output is switched between active and inactive states according to whether the operator is in a working or non-working posture. This parameter change allows the system to maintain safety when needed while avoiding disturbance during visual checks.
Data Source
AI summary
A work vehicle includes a monitoring device which monitors the surroundings of the work vehicle; an alarm device which outputs an alarm on the basis of a monitoring result of the monitoring device; a posture detection unit which detects whether an operator sits on an operation seat of the work vehicle and is in an operation posture for operating the work vehicle; and a control unit which controls the alarm device on the basis of the result of detection by the posture detection unit. Based on detection by the posture detection unit that the operator is in the operation posture, the control unit causes the alarm device to output an alarm based on the monitoring result of the monitoring device, and based on detection by the posture detection unit that the operation posture of the operator is released, the control unit causes the alarm device to stop outputting the alarm based on the monitoring result of the monitoring device.