Antenna Placement for Autonomous Vehicle Elevation Safety
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Solution Overview
Problem
Existing autonomous travelling vehicles with elevation apparatuses face challenges in preventing foreign objects from getting caught between the vehicle body and the elevation mechanism due to insufficient spacing, which is constrained by the structure of actuators and the vehicle body.
Innovation Solution
The implementation of columnar antennas and emergency stop buttons positioned adjacent to the elevational motion area of the elevation apparatus to deter operators and foreign objects from entering the hazardous zone, combined with a cover member for additional protection and maintenance access.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If spacing between the vehicle body and the elevation apparatus is increased to prevent foreign object catch, then safety is improved, but the structure becomes more complex and space-consuming
Solution Approach 1:
A cover member is introduced as an intermediary component between the vehicle body and the elevation apparatus. This cover member includes a through-hole that allows the elevation apparatus to pass through while providing protective coverage. The cover member effectively mediates the spatial relationship, allowing close mounting while preventing foreign object intrusion into the hazardous zone where fingers or objects could get caught between the moving elevation apparatus and the vehicle body.
2Reliability
If spacing between the vehicle body and the elevation apparatus is increased to prevent foreign object catch, then safety is improved, but the available installation space is reduced
Solution Approach 1:
The cover member extends in the vertical dimension (upward from the vehicle body) rather than requiring horizontal spacing. By providing protection in the vertical dimension through the cover member that overlaps with the elevation apparatus movement area, the design eliminates the need for increased horizontal spacing between the vehicle body and the elevation apparatus, thus preserving installation space while maintaining safety.
3Device complexity
If actuators and vehicle body structure are optimized for compact design, then device complexity is reduced, but the risk of foreign object catch increases
Solution Approach 1:
The cover member serves as a protective intermediary that allows compact actuator and vehicle body designs without compromising safety. The cover member includes a through-hole for the elevation apparatus and extends upward to provide protective coverage, creating a barrier that prevents fingers or foreign objects from entering the hazardous zone between the vehicle body and the moving elevation apparatus, even when spacing is minimized for compact design.
Data Source
AI summary
An autonomous travelling vehicle provided with an elevation apparatus on a chassis includes Wi-Fi antennas and cellular antennas that are columnar antennas and that are stood adjacent to an area for elevational motions of an elevation mechanism of the elevation apparatus.