Vehicle Navigation System Antenna Grouping for Coverage Mapping
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Solution Overview
Problem
Existing vehicle navigation systems rely on universal antenna characteristics for generating network coverage maps, which leads to inaccurate identification of dead zones and suboptimal routing, affecting connectivity and service quality.
Innovation Solution
Classifying vehicles into groups based on their specific antenna characteristics, allowing each group to generate and use network coverage maps tailored to their unique antenna characteristics, thereby improving map accuracy and routing optimization.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a universal antenna characteristic is used for generating network coverage maps, then the system complexity is reduced, but the measurement precision and reliability of network coverage assessment deteriorates
Solution Approach 1:
The patent segments the homogeneous vehicle fleet into multiple vehicle groups based on antenna characteristics. Each group is further segmented into subgroups based on signal strength thresholds. This segmentation allows the system to create specialized network coverage maps for each subgroup, improving measurement precision while managing complexity through structured classification.
Solution Approach 2:
The patent changes the parameter of antenna characteristic from a universal assumption to vehicle-specific values. By introducing vehicle-specific antenna characteristics as a variable parameter, the system achieves higher measurement precision in network coverage mapping. The parameter is further refined by using signal strength thresholds to create subgroup-specific characteristics.
2Reliability
If vehicle-specific antenna characteristics are used for network coverage mapping, then the reliability of connectivity assessment improves, but the device complexity increases
Solution Approach 1:
The patent reduces system complexity by segmenting vehicles into groups and subgroups based on antenna characteristics and signal strength thresholds. This segmentation allows the system to handle vehicle-specific variations without requiring individual customization for each vehicle, thereby maintaining reliability while managing complexity.
Solution Approach 2:
The patent creates universal classification criteria (antenna characteristics and signal strength thresholds) that can be applied across the entire vehicle fleet. These universal criteria enable the system to handle diverse vehicle-specific scenarios through a standardized approach, improving reliability without proportionally increasing complexity.
3Ease of manufacture
If network coverage maps are created without considering vehicle-specific antenna characteristics, then the ease of manufacture and deployment is improved, but the productivity of navigation optimization deteriorates
Solution Approach 1:
The patent performs preliminary classification of vehicles into groups and subgroups based on antenna characteristics and signal strength thresholds before generating network coverage maps. This preliminary action prepares the data in advance, allowing the map generation process to be more efficient and productive while maintaining ease of implementation through pre-established classification criteria.
Data Source
AI summary
A method operates a vehicle navigation system, in which vehicles of a vehicle fleet are classified into vehicle groups according to an antenna characteristic with respect to a terrestrial wireless network. The vehicles of the vehicle fleet ascertain at various measurement locations the position of the measurement location and the signal strength and/or the signal quality of the wireless network. The vehicles each generate for each of the measurement locations, signal data, which signal data correspond to the position of the measurement location, the vehicle group of the transmitting vehicle, and the signal strength and/or the signal quality of the wireless network at the measurement location, and transmit the signal data to a backend. The backend processes the signal data in order to create a network coverage map for each of the vehicle groups, which is specific for the antenna characteristic of the respective vehicle group. A navigation system of at least one of the vehicles of the vehicle fleet carries out a navigation function on the basis of the network coverage map assigned to the vehicle group of the at least one vehicle.