Geo-Zone Incursion Warning via Dynamic Alarm Rules
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Solution Overview
Problem
Existing systems for managing and monitoring roadwork perimeters, such as those using channelizers, are ineffective in preventing unintentional vehicle incursions due to the lack of a robust physical barrier, and existing detection systems require complex programming and specific asset allocation.
Innovation Solution
A method and system that establish a geo-zone with associated rules to dynamically control assets within the zone, allowing for real-time instruction based on asset characteristics and changes, enabling effective perimeter strike and incursion warnings through a network of sensor and alarm units, and adaptable traffic signal control.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If channelizers are used to close off work areas, then ease of operation and cost are improved, but physical barrier effectiveness deteriorates
Solution Approach 1:
The patent introduces sensor units as intermediary devices mounted on channelizers. These sensors detect vehicle incursions and trigger alarm units, creating an intermediate detection and warning system that enhances the passive channelizer barrier into an active safety system without requiring heavy physical barriers
Solution Approach 2:
The patent replaces reliance on purely mechanical physical barriers (channelizers) with an electronic detection and warning system (sensors and alarms). This substitution allows the system to provide effective perimeter protection through detection and alerting rather than depending solely on the mechanical strength of channelizers to stop vehicles
2Measurement precision
If detection systems are programmed for specific locations, then measurement precision is improved, but adaptability deteriorates
Solution Approach 1:
The patent creates a universal detection system where sensor units and alarm units can be deployed at any location without site-specific programming. The system uses general-purpose detection algorithms that work across different environments, allowing the same hardware and software to adapt to various work zone configurations through physical deployment rather than programming
Solution Approach 2:
The system automatically detects and responds to incursions using onboard sensors and processing capabilities. Each sensor unit independently monitors its vicinity and triggers appropriate alarm units based on detected conditions, enabling the system to adapt to different locations through self-contained detection logic rather than external programming
Data Source
AI summary
A method of operating an incursion warning system for a work zone, the incursion warning system comprising: a plurality of sensor units arranged about a perimeter of the work zone; and a plurality of alarm units each comprising one or more of an audio, visual or haptic alarm operable to warn a workforce of a potential danger in response to a detected breach into the work area; the method comprising: establishing a geo-zone delimiting a geographical area that includes at least part of the work zone; and a set of rules associated with the geo-zone; deriving an instruction for one of the alarm units determined to be in the geo-zone from the set of rules based on a characteristic of the alarm unit and a characteristic(s) of one or more other alarm units determined to be within the geo-zone; and wherein the instruction is derived in response to a change in a characteristic of the alarm unit and/or the one or more other alarm units and/or one or more of the sensor units within the geo-zone.