Vehicle-Mounted Work Device Emergency Mode for Obstacle Intrusion
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Solution Overview
Problem
Existing work systems, such as manipulators mounted on vehicles, lack effective mechanisms to prevent obstacles from disrupting operations when they approach the vicinity of the vehicle, leading to potential collisions or inefficiencies.
Innovation Solution
A work system with a vehicle-mounted work device that switches between normal and emergency modes, utilizing a detection system to monitor the vicinity and adjust operations to prevent collisions, including the option to stop work or reduce speed, and an alerting mechanism to notify surroundings of potential obstacles.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the work device operates in normal mode to maintain high productivity, then work efficiency is improved, but the risk of collision with obstacles increases when obstacles approach the vicinity
Solution Approach 1:
The work device dynamically switches between normal mode and first emergency mode based on real-time obstacle detection results. When an obstacle enters the monitoring region, the system transitions from normal operation to emergency stopping, creating a dynamic adaptation mechanism that resolves the contradiction between maintaining productivity and ensuring safety
Solution Approach 2:
The detection device continuously monitors the monitoring region and provides feedback to the control unit. This feedback loop enables the system to detect obstacles and automatically switch modes, creating a closed-loop control system that balances productivity and collision risk based on real-time environmental conditions
2Reliability
If the work device stops work in emergency mode to prevent collision, then safety is improved, but work productivity decreases
Solution Approach 1:
The system employs dynamic mode switching between normal mode and first emergency mode rather than permanent stopping. Once the obstacle leaves the monitoring region, the system can return to normal operation, minimizing productivity loss while maintaining safety when needed
Solution Approach 2:
The system performs preliminary stopping action by switching to first emergency mode when an obstacle is detected in the monitoring region, preventing collision before it occurs. This preliminary anti-action resolves the contradiction by stopping only when necessary rather than continuously
3Reliability
If the monitoring region is set to cover the entire movable region outside the vehicle, then collision prevention is improved, but the complexity of the detection system increases
Solution Approach 1:
The monitoring region is strategically positioned to cover at least part of the movable region outside the vehicle where obstacles are most likely to affect operations. This localized approach provides adequate collision prevention while avoiding the need to monitor the entire movable region, thus reducing detection system complexity
Solution Approach 2:
The system monitors a monitoring region that covers at least part of the movable region rather than the entire area. This partial monitoring approach provides sufficient safety for critical zones while reducing the complexity and cost of the detection system compared to comprehensive full-area monitoring
Data Source
AI summary
A processor is configured to set a monitoring region including at least a part of a movable region of a work device outside a vehicle, and a detection device is configured to detect information on the vicinity of the vehicle. Here, the processor is configured to, when it is determined that an obstacle has entered the monitoring region or it is predicted that an obstacle will enter the monitoring region based on a detection result of the detection device and when a work mode is not an emergency mode, control the work device such that the work device switches the work mode to the emergency mode.