Vehicle Position Detection for Dual View Display Safety
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Solution Overview
Problem
Current on-vehicle entertainment systems with dual view displays pose a safety risk as drivers may be distracted by trying to view passenger content, leading to hazardous behavior when they leave their normal driving position to watch passenger entertainment, which can result in loss of control of the vehicle.
Innovation Solution
An on-vehicle position detection system using a radiation emitting device and sensor to detect the driver's position, generating a control signal to adjust the display settings, such as switching off or changing the passenger's viewing region to prevent the driver from being distracted by leaning over to watch passenger content, by using a reflective infra-red proximity sensor integrated with the display device.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a dual view display is used to provide separate content for driver and passenger, then entertainment functionality for both occupants is improved, but driver safety deteriorates because the driver may be distracted by trying to view passenger content
Solution Approach 1:
The system continuously monitors driver position using sensors (optical, capacitive, or weight sensors) and provides feedback to the control unit. When the driver is detected to be in the correct position, the passenger view remains active. When the driver leans toward the passenger seat, the system detects this position change and responds by switching the passenger view to a blank screen or single-color display, thereby preventing driver distraction while maintaining dual-view functionality.
Solution Approach 2:
The system takes preliminary action by detecting driver position before the driver can actually view the passenger content. When the driver's position deviates from the normal driving position (leaning toward passenger seat), the system preemptively disables the passenger view or changes it to a non-distracting display (blank screen or single color), preventing the harmful action of viewing passenger content while driving.
2Ease of operation
If the passenger viewing region is made visible from multiple angles, then accessibility for passenger is improved, but driver distraction risk increases as driver can view passenger content from driving position
Solution Approach 1:
The display system implements local quality by creating different viewing characteristics for different regions of the display. The passenger viewing region is optimized for passenger viewing angles, while the driver viewing region maintains its original characteristics. The system applies different display content or visibility settings to different local regions (driver view vs. passenger view) based on detected driver position, ensuring that passenger content remains accessible to the passenger but becomes inaccessible or non-distracting when the driver leans forward.
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
The system effectively reduces driver distraction by ensuring the passenger's viewing region is altered when the driver attempts to leave their normal position, thereby maintaining focus on driving and enhancing safety by eliminating the motivation to lean over and watch passenger content.
Implementation Method 1
a radiation emitting device for producing at least one beam which is appropriate to be reflected by a human body seated in the vehicle, and a sensor device which is adapted for detecting a reflection of the at least one beam produced by the radiation emitting device and reflected by the human body
Data Source
AI summary
An on-vehicle position detection system includes a radiation emitting device for producing at least one beam which is appropriate to be reflected by a human body seated in the vehicle, a sensor device adapted for detecting the reflection of the at least one beam produced by the radiation emitting device and reflected by the human body, and for generating an output signal responsive to a reflection state of the at least one beam. A control device is coupled with the sensor device and is adapted for determining whether the output signal corresponds with a first value indicative of a first position of the human body, or a second value which is different from the first value and indicative of a second position of the human body. The control device is further adapted for switching on, switching off, or changing at least one of the functions of the operation mode of a device to be controlled when the control device determines that the output signal corresponds with the second value.