Display-Integrated Passenger Radar for Accurate In-Cabin Detection
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional passenger detection devices in vehicles face challenges in being disposed at a position where they can accurately detect passengers while also allowing the display device to be easily visually recognized by drivers and passengers, due to space constraints and interference from vehicle components.
Innovation Solution
A passenger detection device is integrated into a display device positioned to face the front seat, featuring a transmission unit to emit radio waves and a reception unit to detect reflected waves, allowing for accurate passenger monitoring without obstructing the display's visibility or requiring additional space.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a passenger detection device is disposed at a position facing the passenger (instrument panel) for accurate detection, then detection accuracy is improved, but the display device cannot be disposed at a position where it can be easily visually recognized by passengers
Solution Approach 1:
The passenger detection device is merged with the display device by mounting the transmission unit and reception unit on the display device. This integration allows the display device to serve dual purposes: displaying information to passengers while simultaneously functioning as a passenger detection device. The transmission unit transmits radio waves through the display device toward the passenger, and the reception unit receives reflected radio waves, enabling accurate passenger detection without compromising display visibility or requiring separate mounting space.
2Measurement precision
If a separate passenger detection device is mounted on the instrument panel for accurate detection, then detection performance is improved, but device complexity and space requirements increase
Solution Approach 1:
The passenger detection device is merged with the display device by mounting the transmission unit and reception unit on the display device. This integration allows the display device to serve dual purposes: displaying information to passengers while simultaneously functioning as a passenger detection device. The transmission unit transmits radio waves through the display device toward the passenger, and the reception unit receives reflected radio waves, enabling accurate passenger detection without compromising display visibility or requiring separate mounting space.
Solution Approach 2:
The display device is given multiple functions: it serves as both an information display device for passengers and as a passenger detection device. By integrating the transmission unit and reception unit into the display device, the system achieves multi-functionality, reducing the overall number of components and simplifying the system architecture while maintaining accurate passenger detection capabilities.
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 accurate detection of passengers, including drivers, assistant drivers, and rear-seat occupants, while ensuring the display remains easily accessible and visible, with potential for space-saving integration and shared components with the display device.
Implementation Method 1
a transmission unit mounted on the display device, to transmit a radio wave to an interior of the vehicle; and a reception unit mounted on the display device, to receive a reflected radio wave of the radio wave transmitted by the transmission unit
Data Source
AI summary
A passenger detection device for detecting a passenger in a vehicle in which a display device is disposed in such a way as to face a front seat ahead of the front seat, includes: a transmission unit that is mounted on the display device and transmits a radio wave to a vehicle interior; and a reception unit that is mounted on the display device and receives a reflected radio wave of the radio wave transmitted by the transmission unit.