In-Vehicle User Position Control via Facial Recognition
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Solution Overview
Problem
Existing systems for detecting the position of a mobile terminal inside a vehicle require multiple ultrasonic sensors, increasing costs and complicating the addition of user position detection, and fail to provide control based on the user's actual position.
Innovation Solution
An in-vehicle apparatus control system that uses facial recognition to associate a user's face image with their position within the passenger compartment, allowing control requests to be executed based on the user's seated position.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If multiple ultrasonic sensors are installed to detect mobile terminal position, then position detection capability is improved, but system cost and complexity increase
Solution Approach 1:
The in-vehicle camera system, originally designed for general monitoring purposes, is made multi-functional by enabling it to perform both conventional monitoring and mobile terminal position detection through image processing algorithms. This eliminates the need for dedicated ultrasonic sensors while maintaining position detection capability.
Solution Approach 2:
The patent replaces the mechanical/acoustic sensor-based position detection system with an optical/image processing-based system. Instead of using ultrasonic waves and physical sensors, the system uses camera images and computational algorithms to detect mobile terminal positions, reducing hardware complexity.
2Loss of information
If ultrasonic wave sensors are used for position detection, then position information can be obtained, but the system cannot accurately identify user position for control purposes
Solution Approach 1:
The patent introduces an intermediary association mechanism that links mobile terminal identification information with user face images captured by the camera. This intermediary data structure enables the system to trace from terminal position to user identity and ultimately to user seated position, ensuring accurate user position identification for control purposes.
3Measurement precision
If dedicated position detection sensors are installed, then mobile terminal position can be detected, but additional cost is incurred
Solution Approach 1:
The patent makes the existing in-vehicle camera system multi-functional, enabling it to perform both conventional monitoring and mobile terminal position detection. By reusing existing hardware infrastructure rather than installing dedicated sensors, the system achieves position detection capability without additional manufacturing costs.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables reliable and cost-effective determination of the user's position for targeted control within the vehicle, using existing equipment like dashcams for image capture and reducing the need for additional sensors.
Implementation Method 1
judges a seated position of the user by means of facial recognition by using an inside passenger compartment image
Data Source
AI summary
A user's position inside a passenger compartment is judged easily and reliably and control according to the user's position is provided. An in-vehicle apparatus control system includes a server and an in-vehicle apparatus and is configured to communicate with a mobile terminal, such as a smart phone, that is located within the vehicle. The in-vehicle apparatus control system includes a storage unit that stores a face image of a user of the mobile terminal by associating the face image with identification information of the mobile terminal. The system also includes a seated position judgment unit that judges a seated position of the user by means of facial recognition to evaluate an inside passenger compartment image and the face image. The in-vehicle apparatus executes control according to the seated position of the user of the mobile terminal when accepting a specified control request from the mobile terminal.