Radio Zone Vehicle Speed Control for Mixed Traffic
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Solution Overview
Problem
In work sites with a mix of autonomous and manually operated vehicles, existing solutions fail to balance safety and productivity effectively, as high speeds required for productivity pose a safety risk to other vehicles and personnel.
Innovation Solution
A radio transmitter defines a work site zone by coverage of radio signals, allowing differentiated vehicle operation conditions, such as speed, within the zone versus outside, enabling autonomous vehicles to operate at higher speeds for productivity while prioritizing safety when mixed with operator-controlled vehicles.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If autonomous vehicles operate at high speeds to maintain productivity, then productivity is improved, but safety deteriorates due to risk to other vehicles and personnel
Solution Approach 1:
The work site is divided into multiple zones with different safety levels using radio transmitters that create distinct radio signal coverage areas. Each zone can have different vehicle operation conditions, allowing high-speed autonomous operation in designated areas while maintaining safety in mixed-traffic areas.
Solution Approach 2:
Different vehicle operation conditions are applied to different spatial locations on the work site. The radio receiver detects local radio signal conditions and adjusts vehicle parameters accordingly, enabling high speed in safe zones and reduced speed in zones with personnel or other vehicles.
2Object-affected harmful factors
If uniform speed restrictions are applied across the entire work site to ensure safety, then safety is improved, but productivity deteriorates due to reduced vehicle speeds
Solution Approach 1:
The work site is segmented into multiple zones with different safety requirements. Radio transmitters create distinct coverage areas that allow the system to apply different speed conditions to different spatial locations, rather than imposing a uniform restriction across the entire site.
Solution Approach 2:
The vehicle speed is dynamically adjusted based on the detected radio signal conditions. The vehicle automatically transitions between different speed regimes as it moves between zones with different radio signal coverage, optimizing both safety and productivity in real-time.
3Adaptability or versatility
If GPS-based zone differentiation is used to control vehicle speeds, then differentiated control is achieved, but device complexity and cost increase
Solution Approach 1:
The patent replaces GPS-based spatial identification with a radio signal-based system. Instead of using satellite positioning and complex coordinate calculations, the system uses simple radio transmitters and receivers to define zones and determine vehicle location relative to those zones.
Solution Approach 2:
The system uses inexpensive radio transmitters and receivers instead of costly GPS hardware and processing systems. The radio-based zone definition provides sufficient functionality for differentiated control without requiring expensive positioning infrastructure.
Data Source
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AI summary
The invention relates to an arrangement for a work site (1). The arrangement (2) comprises a radio transmitter (3) arrangeable at the work site for transmitting signals (7) receivable by a radio receiver (4) arranged on a vehicle (5) at the work site (1). The radio transmitter (3) is arranged to define a work site zone (6) of the work site by means of the coverage of the radio signals (7) from the radio transmitter. A predetermined vehicle operation condition for the vehicle (5) is different in the work site zone (6) when receiving the radio signals (7) compared to outside the work site zone (6) when not receiving the radio signals (7).