UWB Vehicle Lighting Control for Driver-Tracking Beam Adjustment
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Solution Overview
Problem
Existing vehicle lighting systems fail to provide intelligent and comfortable lighting adjustments based on the driver's position relative to the vehicle, leading to discomfort and safety issues such as direct light emission into the driver's eyes or uneven lighting on sloped roads.
Innovation Solution
A UWB-based vehicle lighting control system that uses ultra-wideband communication technology to detect the user's position and adjust lighting direction and height accordingly, including a UWB communication device, processing module, and control device to implement welcome and escort modes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If the headlight is automatically turned on when the driver unlocks the vehicle, then the driver receives lighting assistance, but the light emission direction is fixed and may directly light the driver's eyes causing temporary discomfort
Solution Approach 1:
The headlight emission direction is changed from fixed to dynamic. The system detects the driver's position using UWB communication equipment and automatically adjusts the headlight beam direction to follow the driver's movement, ensuring the light does not directly enter the driver's eyes while providing continuous lighting assistance.
Solution Approach 2:
The system implements feedback control by continuously monitoring the driver's position through UWB communication and using this information to adjust the headlight emission direction in real-time. This closed-loop control ensures the lighting remains helpful without causing discomfort.
2Illumination intensity
If the headlight is turned on for a certain period to provide lighting when the driver gets out of the vehicle, then the driver receives lighting assistance, but the headlight direction is not adjusted based on driver movement
Solution Approach 1:
The headlight system transitions from a static, fixed-direction lighting system to a dynamic system that continuously tracks and adjusts its emission direction based on the driver's real-time position detected by UWB communication equipment, providing adaptive lighting throughout the driver's movements.
Solution Approach 2:
The lighting system automatically detects the driver's position and adjusts its own emission direction without requiring manual intervention. The system serves itself by using UWB communication data to autonomously optimize the lighting direction, eliminating the need for driver input.
3Adaptability or versatility
If the vehicle is parked on a sloped road, then the vehicle can be positioned on various terrains, but the headlight does not light the road evenly because the light emission direction is inclined with the vehicle body
Solution Approach 1:
The system uses feedback from UWB communication equipment that detects the driver's position and orientation to determine the correct lighting direction. Even when the vehicle is on a slope, the system adjusts the headlight emission direction based on the driver's actual position relative to the road, compensating for the vehicle's inclination and ensuring even road illumination.
Solution Approach 2:
The system changes the headlight emission parameters (direction and angle) based on detected conditions including vehicle slope and driver position. By dynamically adjusting these parameters rather than maintaining a fixed emission direction, the system achieves uniform road lighting regardless of the vehicle's parking orientation.
Data Source
AI summary
An ultra wide band (UWB)-based vehicle lighting control system includes a UWB communication equipment and a vehicle-mounted UWB communication device including a UWB processing module and a plurality of vehicle-mounted UWB communication modules. The plurality of vehicle-mounted UWB communication modules is configured to transmit a UWB communication signal received from a user to the UWB processing module. The system further includes a main control device configured to determine whether conditions of a welcome or escort operation mode of vehicle lighting are satisfied and generate a vehicle lighting control signal when the conditions of the welcome or escort operation mode of the vehicle lighting are satisfied. The system further includes a vehicle lighting control device configured to operate the vehicle lighting based on the vehicle lighting control signal of the main control device and change a position to which the vehicle lighting emits light based on a user movement.