Vehicle Data Interface for Satellite Positioning System Integration
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Solution Overview
Problem
Conventional automotive Satellite Positioning System (SPS) and Dead Reckoning (DR) navigation systems face challenges such as installation complexities due to the need for physical connections between vehicle sensors and the navigation processor, limited access to vehicle sensor data, and directional sensitivity of gyroscopes, which restricts the efficient use and integration of data within the vehicle's systems.
Innovation Solution
A method and system that utilize a platform data bus to collect and provide vehicle sensor data to a SPS receiver, eliminating the need for direct wired connections and allowing access to internal vehicle data, thereby enhancing data utilization and integration with SPS systems.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If physical connections are made between vehicle sensors and the navigation processor, then data access is enabled, but installation complexity increases
Solution Approach 1:
The patent introduces a data interface as an intermediary device that connects to the vehicle's existing data bus system. This interface collects sensor data from multiple vehicles sensors through the data bus without requiring direct physical connections from each sensor to the navigation processor, thereby enabling data access while reducing installation complexity
Solution Approach 2:
The data interface is designed to work with the vehicle's existing data bus system, which already carries data from multiple sensors. By utilizing this existing universal data pathway, the system can access sensor data without creating dedicated connection paths, thus enabling data access while minimizing additional installation complexity
2Reliability
If direct wired connections are used between sensors and navigation processor, then data reliability is ensured, but ease of operation deteriorates
Solution Approach 1:
The data interface serves as a reliable intermediary that maintains data integrity by collecting data from the vehicle's data bus and transmitting it to the navigation processor. This approach preserves data reliability through a structured data collection process while significantly improving ease of installation by eliminating the need for complex direct wiring between each sensor and the processor
3Loss of information
If multiple physical connections are made for different sensors, then data completeness is improved, but device complexity increases
Solution Approach 1:
The data interface leverages the vehicle's existing data bus system that already carries data from multiple sensors. By tapping into this universal data pathway, the system can access data from multiple sensors through a single connection point, thereby maintaining data completeness while avoiding the complexity of multiple separate physical connections
Solution Approach 2:
The patent combines multiple sensor data streams that travel through the vehicle's data bus into a single data interface connection. This merging approach allows the navigation processor to receive complete sensor data through one consolidated interface, improving data completeness while reducing connection complexity
Data Source
AI summary
The invention described herein relates to aiding a Satellite Positioning System (SPS) receiver of a platform with a data interface to the platform data. The platform, for example, could be a vehicle, ship, aircraft, or a pedestrian. The SPS receiver would be used to track the location of the platform. The data interface would facilitate access by the SPS receiver to the data of the platform, and the SPS receiver in turn could provide SPS data (such as position, speed, and heading) to the platform. A further aspect of the invention includes hardware or software used by the data interface and the SPS receiver to provide, format, time-stamp, synchronize, and match platform data or SPS receiver data.