In-Vehicle Wearable Tracking With Sensor Fusion Positioning
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Solution Overview
Problem
Existing wearable devices integrated with vehicles face complications in setup and are often expensive, lacking user-friendliness and efficiency, particularly when obtaining information from vehicle systems like ADAS.
Innovation Solution
A tracking system comprising a first tracking device on the vehicle, a second tracking device, and a wearable device, which utilize sensors and cameras to obtain and fuse measurement information for precise user positioning within the vehicle, employing SLAM maps and inertial/visual tracking techniques to correct for vehicle movement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a traditional tracking system is used to track user position in a vehicle, then tracking accuracy can be achieved, but the system becomes expensive and complex
Solution Approach 1:
The system divides the tracking function into separate modules: a first tracking device for obtaining map information and first measurement information, a second tracking device for obtaining second measurement information, and a wearable tracking device for obtaining third measurement information. Each device performs a specific tracking function, and the results are fused to achieve overall tracking accuracy while reducing individual device complexity
Solution Approach 2:
The patent introduces an intermediary fusion mechanism that combines measurement information from multiple devices. The system uses map information as a reference framework and integrates measurements from fixed tracking devices and wearable devices through coordinate transformation and fusion algorithms, achieving accurate tracking without requiring a single complex expensive system
2Measurement precision
If a traditional tracking system is used to track user position in a vehicle, then tracking accuracy can be achieved, but the system becomes expensive
Solution Approach 1:
The system uses map information as a virtual copy or reference model of the vehicle interior environment. Instead of requiring expensive physical sensors everywhere, the system creates a digital twin of the vehicle space and uses this map as a foundation for tracking, reducing the need for expensive hardware while maintaining accuracy
Solution Approach 2:
The patent merges the tracking functions of multiple devices into a unified system. By combining map information from the first tracking device, measurements from the second tracking device, and measurements from the wearable device, the system achieves accurate tracking at a lower cost than any single expensive system could provide
3Measurement precision
If the wearable device integrates with the vehicle through traditional methods, then tracking can be achieved, but the setup becomes complicated and not user-friendly
Solution Approach 1:
The system enables the wearable device to automatically obtain tracking information from multiple sources without requiring manual configuration or complex setup. The device autonomously fuses map information, first measurement information, and third measurement information to determine user position, making the integration process simple and user-friendly while maintaining tracking accuracy
Data Source
AI summary
A tracking system is provided. The tracking system includes a first tracking device, a second tracking device, and a wearable tracking device. The first tracking device is disposed on a vehicle and is configured to obtain map information and first measurement information. The second tracking device is disposed on the vehicle and is configured to obtain second measurement information. The wearable tracking device is disposed on a user in the vehicle and is configured to obtain third measurement information. Further, the wearable tracking device is configured to obtain location position information of the user based on the map information, the first measurement information, the second measurement information, and the third measurement information. Furthermore, the local position information indicates a user position of the user within the vehicle.