Concentric Geofence Data Retrieval for Logistics Telematics
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Solution Overview
Problem
Current data retrieval and forwarding systems in logistics management face challenges in efficiently managing data sovereignty and geospatial data sharing, particularly in associating telematics data with specific vehicle tours, location, and time, while also dealing with the advantages and disadvantages of large and small geofences.
Innovation Solution
A method involving the use of concentric geofences to retrieve and forward a subset of telematics data from a vehicle, where data is collected and forwarded only when the vehicle is within specific geographical regions defined by the outer and inner geofences, with dynamic adaptations possible to ensure accurate data sharing and tour completion tracking.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If large geofences are used for data distribution, then data coverage area is improved, but data retrieval volume and transmission load increase
Solution Approach 1:
The patent divides a large geofence into multiple smaller sub-geofences (e.g., geofence 1, geofence 2, geofence 3) that share a common outer boundary but have different inner boundaries. This segmentation allows the system to monitor the entire large area while only retrieving data when vehicles enter specific sub-geofences, thus maintaining broad coverage without proportionally increasing data transmission volume.
Solution Approach 2:
Different sub-geofences within the same outer boundary are assigned different characteristics (inner boundaries, data retrieval rules, time windows). This allows localized data retrieval policies where data is only collected when vehicles enter specific high-priority zones, rather than continuously monitoring the entire large geofence area, thereby reducing overall data transmission while maintaining coverage.
2Measurement precision
If small geofences are used for data distribution, then data retrieval precision is improved, but data coverage area decreases
Solution Approach 1:
The patent merges multiple small sub-geofences (with different inner boundaries but shared outer boundaries) into a unified geofence structure. This allows the system to maintain the precision benefits of small geofences for specific locations while achieving broad coverage through the combination of multiple such geofences, effectively resolving the contradiction between precision and coverage.
Solution Approach 2:
The outer boundary shared by multiple sub-geofences serves multiple functions: it defines the overall monitoring area, acts as a common trigger zone for data retrieval, and provides a unified boundary for multiple precision-focused inner zones. This multi-functionality allows the system to achieve both broad coverage and high precision simultaneously.
3Loss of information
If continuous data retrieval is performed, then data completeness is improved, but energy consumption and system load increase
Solution Approach 1:
Instead of continuous data retrieval, the system implements periodic action by only retrieving data when specific conditions are met (vehicle enters a geofence, exits a geofence, or within defined time windows). This event-triggered approach ensures data completeness for relevant events while dramatically reducing energy consumption compared to continuous monitoring.
Solution Approach 2:
The system extracts only the necessary data at specific moments (when vehicles enter or exit geofences) rather than continuously retrieving and transmitting all data. This selective extraction maintains data completeness for critical events while minimizing energy consumption and system load by avoiding unnecessary data retrieval during periods when no relevant events occur.
Data Source
AI summary
A method for retrieving data, such as telematics data, from a vehicle, to which a tour is assigned, and forwarding at least a subset of those data to an observer. The method comprises the steps of determining a location of the vehicle. Providing two or more concentric geofence, the concentric geofences comprises an outer geofence and an inner geofence. Define a start concentric geofence with a pick-up location inside an inner geofence and an end geofence with a delivery location inside an inner geofence. After a tour is assigned to the vehicle, retrieve at a server the data from said vehicle. Forwarding from the server a subset of the data to the observer, where the subset is defined as data retrieved from the vehicle being within a geographical region defined as where the vehicle enters an outer geofence of said start concentric geofence and exit of an inner geofence of an end concentric geofence.