Automotive Welcome Light Control Using Dynamic Obstacle-Based Sensing
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Solution Overview
Problem
Conventional welcome light systems in automobiles consume excessive power by sensing unnecessary areas, regardless of the peripheral environment, leading to inefficient power usage.
Innovation Solution
A system and method that utilizes data collection units with sensors like parking sensors, cameras, or ultrasound devices to recognize obstacles and designate a driver search area, turning on automotive lamps only when a driver approaches within this designated area, thereby minimizing power consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the welcome light system periodically senses a preset area regardless of peripheral environments, then the driver can be detected in any parking location, but the power consumption of the automobile increases
Solution Approach 1:
The sensing system transitions from uniform omnidirectional sensing to localized directional sensing. The system determines the driver's approach direction and activates only the sensing functions oriented toward that direction, thereby reducing unnecessary sensing operations in other directions while maintaining reliable driver detection capability.
Solution Approach 2:
The sensing system dynamically adjusts its operational characteristics based on real-time conditions. By continuously monitoring the driver's approach direction and updating the active sensing zones accordingly, the system optimizes power consumption while maintaining detection reliability across varying parking environments.
2Area of stationary object
If the welcome light system senses all preset areas including areas with obstacles, then complete area coverage is achieved, but unnecessary sensing operations increase power consumption
Solution Approach 1:
The system extracts and removes obstacle regions from the active sensing areas. By identifying areas occupied by obstacles and excluding them from the preset sensing zones, the system reduces unnecessary sensing operations in those regions while maintaining comprehensive coverage of accessible areas.
Solution Approach 2:
The sensing system dynamically modifies the spatial parameters of active sensing zones based on obstacle detection. When obstacles are detected in certain directions, the system adjusts the sensing area parameters to exclude those regions, thereby reducing power consumption without compromising the coverage of valid approach paths.
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
Efficient recognition of the parking environment and obstacles allows for targeted welcome light activation, reducing unnecessary area sensing and minimizing power consumption of the welcome light system.
Implementation Method 1
the vehicle has a controller for forming a large area, using low power electromagnetic radiation
Data Source
Figure 1~2
AI summary
The present invention relates to a system and method for controlling the operation of automotive lamps. That is, the system comprises: a data collection unit, which collects peripheral environmental data for the current position of an automobile upon the occurrence of an event and through one or more sensing devices with which the automobile is provided; a driver-sensing unit which determines the position of an obstacle adjacent to the automobile on the basis the peripheral environmental data, designates a driver search area in consideration of the determined position of the obstacle, and senses an approach of a driver by sensing a smart key carried by the driver in the designated driver search area; and an automotive lamp control unit which, if an approach of the driver is sensed in the designated driver search area, turns on the automotive lamps. With the system and method of the present invention, a parking environment and obstacles existing near the automobile may be recognized and welcome light searching may be performed in an efficient manner on the basis of such a recognition, thus minimizing the consumption of power caused by a welcome light system of the automobile.