Vehicle Event Forwarding via Route-Aligned Device Selection
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Solution Overview
Problem
Modern vehicles face challenges in receiving timely location-based services due to network overload when subscribing to defined geographical regions, leading to delayed or missed information.
Innovation Solution
A vehicle system and method that employs a push technique for event forwarding, where a communication unit and navigation system identify relevant devices along a route, allowing only necessary events to be communicated, thereby reducing network load and ensuring timely information delivery.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If a vehicle subscribes to all devices in a defined geographical region, then the vehicle can receive comprehensive event information, but network overload occurs and information arrives delayed or not at all
Solution Approach 1:
The geographical region is segmented into multiple zones based on the vehicle's route. Instead of subscribing to all devices in the entire region, the system divides the region and only subscribes to devices located in the specific zones along the planned route, thereby reducing network load while maintaining comprehensive coverage of relevant events.
Solution Approach 2:
The subscription scope is localized to match the vehicle's actual travel path. Devices are selected based on their spatial relationship to the route, ensuring that only locally relevant events (those occurring near the vehicle's path) are subscribed to, rather than uniformly subscribing to all devices in the region.
2Reliability
If the vehicle subscribes to events in advance for a large region, then more events can be captured, but unnecessary information increases network load and delays critical information
Solution Approach 1:
The system performs preliminary actions by determining the vehicle's planned route in advance and pre-subscribing only to devices located along that route. This preliminary filtering ensures that when events occur, only relevant ones are transmitted, avoiding the delay caused by filtering large volumes of unnecessary information later.
Solution Approach 2:
The system extracts and isolates only the necessary subset of devices that are relevant to the vehicle's route from the complete set of devices in the geographical region. This extraction process removes unnecessary subscription overhead and ensures that only critical events are transmitted, reducing delays.
3Loss of information
If all devices in a region are monitored, then no event is missed, but data transmission volume increases and bandwidth is consumed
Solution Approach 1:
The monitoring scope is made local to the vehicle's route rather than universal across the entire region. Each device's relevance is assessed based on its location relative to the route, and subscriptions are created only for devices in the local vicinity of the planned path, reducing data volume while maintaining event coverage for relevant locations.
Solution Approach 2:
The region is segmented into route-aligned zones, and monitoring is applied selectively to each segment based on the vehicle's passage through that segment. This segmentation approach ensures that data is collected from all necessary locations along the route while avoiding redundant data transmission from areas the vehicle will not visit.
Data Source
AI summary
A vehicle includes a communication unit for the communication with an event management server, a navigation system for the output of at least one route, and a planning system. The planning system is configured to: a) retrieve a list, for a plurality of devices, particularly traffic light systems and/or signal groups of traffic light systems, the list including one identification respectively of the respective device and at least one position indication respectively of the respective device, b) compare the list with the route, in order to select at least one device from the list, c) for the subscription of events with respect to the selected device, send at least one subscription message to the event management server, the subscription message including the identifications of the selected devices.