Driver Assistance System Detecting Failed Brake Lamps
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Drivers face increased risk of collision accidents due to difficulty in recognizing whether a preceding vehicle's brake lamp is failed, which can lead to inadequate response time during braking situations.
Innovation Solution
A driver assistance system equipped with a front camera and radar sensors to detect the velocity and brake lamp status of preceding vehicles, determining if the brake lamp is failed and adjusting emergency braking and collision warning timing accordingly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the brake lamp of the preceding vehicle is failed, then the driver cannot recognize the braking status of the preceding vehicle, but the collision risk increases
Solution Approach 1:
The patent introduces an intermediary system (image processing unit and controller) that mediates between the failed brake lamp and the driver. The system captures images of the preceding vehicle's brake lamp area, processes them to detect brake lamp status, and provides this information to the driver through the vehicle's display system, thus compensating for the failed brake lamp signal
Solution Approach 2:
The patent replaces the mechanical/optical brake lamp signal transmission system with an electronic image processing and transmission system. Instead of relying on the physical brake lamp to convey braking information, the system uses cameras, image processing algorithms, and electronic displays to transmit the same information to the driver
2Loss of time
If the driver relies on brake lamp recognition, then the response time is sufficient under normal conditions, but the response time becomes insufficient when brake lamp fails
Solution Approach 1:
The patent implements a feedback mechanism where the system continuously monitors the brake lamp status of the preceding vehicle through image capture and processing. When brake lamp failure is detected, the system provides feedback to the driver through the vehicle's display, enabling the driver to respond appropriately despite the failed brake lamp signal
Solution Approach 2:
The patent performs preliminary action by proactively detecting and identifying brake lamp failure conditions before they lead to collision. The system continuously analyzes images of the preceding vehicle's brake lamp area and prepares brake lamp status information in advance, allowing the driver to respond promptly when braking occurs
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 reduces the risk of collision accidents by providing timely and appropriate notifications and interventions when a preceding vehicle's brake lamp is failed, enhancing driver awareness and response to potential hazards.
Implementation Method 1
a second sensor selected from a group consisting of a radar sensor and a lidar sensor, mounted in the vehicle, having a front field of sensing of the vehicle, and configured to acquire a front detection data
Implementation Method 2
a second sensor selected from a group consisting of a radar sensor and a lidar sensor, mounted in the vehicle, having a front field of sensing of the vehicle, and configured to acquire a front detection data
Data Source
AI summary
A driver assistance system that notifies the driver of the braking information of the preceding vehicle or improves the sensitivity of the emergency braking system if the brake lamp of the preceding vehicle is failed includes: a first sensor mounted in a vehicle, having a front field of view of the vehicle, and configured to acquire a front image data; a second sensor selected from a group consisting of a radar sensor and a lidar sensor, mounted in the vehicle, having a front field of sensing of the vehicle, and configured to acquire a front detection data; and a controller including a processor configured to process the front image data and the front detection data, and the controller is configured to: detect a velocity of the preceding vehicle travelling in front of the vehicle and a brake lamp of the preceding vehicle in response to processing the front image data and the front detection data; and determine whether the brake lamp of the preceding vehicle is failed based on the velocity of the preceding vehicle and a lighting of the brake lamp of the preceding vehicle.