Geofence Range Determination Using Road and Traffic Context
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Solution Overview
Problem
Existing geofencing technologies for connected vehicles fail to optimize geofence coverage, leading to irrelevant receivers being alerted due to a lack of consideration for actual geographical information and current traffic conditions, resulting in unnecessary message generation and computation burden.
Innovation Solution
A method and management entity that determine the spatial range of a geofence based on event rules, including spatial elements, extending directions, and speed information to optimize coverage, minimizing alerts to irrelevant vehicles.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a geofence is generated without considering geographical information and traffic conditions, then the geofence can be quickly determined, but irrelevant receivers will be alerted and unnecessary messages will be generated
Solution Approach 1:
The patent changes the parameters used for geofence determination by incorporating geographical information (road segments, road lanes, flight paths) and traffic conditions (speeds, travel times) into the geofence calculation. This transforms the geofence from a simple circular area to a customized spatial range that reflects actual traffic flow and geographical characteristics, thereby improving coverage accuracy without excessive complexity
Solution Approach 2:
The patent segments the geofence determination process into multiple steps: first determining spatial elements (road segments, road lanes, flight paths) based on the event location, then calculating the spatial range based on these spatial elements and traffic conditions. This segmentation allows the system to handle complex geographical and traffic data systematically, improving accuracy while managing computational complexity through structured processing
2Reliability
If a geofence covers a large area to ensure all potential receivers are alerted, then safety coverage is improved, but management and network resources are consumed by processing irrelevant messages
Solution Approach 1:
The patent applies local quality by customizing the geofence spatial range to match the specific characteristics of the event location and traffic conditions. Instead of using a uniform large-area geofence, the system calculates a customized spatial range based on local geographical elements (road segments, road lanes, flight paths) and traffic conditions (speeds, travel times), thereby ensuring safety coverage is applied locally where needed while avoiding resource consumption in irrelevant areas
Solution Approach 2:
The patent uses partial action by determining the spatial range based on relevant spatial elements and traffic conditions rather than using a comprehensive large-area approach. The geofence is extended only as much as necessary based on the event characteristics and traffic flow patterns, avoiding excessive coverage that would waste network resources on irrelevant receivers while still providing adequate safety coverage
3Adaptability or versatility
If the geofence spatial range is extended to cover more areas, then the coverage of relevant vehicles is improved, but the number of alerts to irrelevant vehicles increases
Solution Approach 1:
The patent implements dynamics by making the geofence spatial range adaptable to different event types, locations, and traffic conditions. The system dynamically calculates the spatial range based on the specific spatial elements (road segments, road lanes, flight paths) and traffic conditions (speeds, travel times) at the time of the event, allowing the geofence to adjust its coverage to match the actual risk scenario while avoiding fixed overly-broad definitions that would generate irrelevant alerts
Data Source
AI summary
A method and a management entity are disclosed for determination of geofence. According to an embodiment, the management entity receives, from an event reporter, a report indicating that an event related to a geofence has occurred at a location. The management entity determines, from a geographic information database, one or more spatial elements related to a spatial range of the geofence, with the reported location of the event. The management entity determines, from the one or more spatial elements, the spatial range of the geofence. At least one of determining the one or more spatial elements and determining the spatial range of the geofence is based on one or more event rules predetermined for the event according to characteristic of the event.