Front Vehicle Startup Detection Using Video and Gravity Sensors
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Solution Overview
Problem
Existing driver assistant systems fail to accurately determine whether a preceding vehicle has started up, leading to potential traffic jams and accidents due to the complexity and inaccuracy of current state determination methods.
Innovation Solution
A method utilizing a combination of video sensors and gravity sensors to collect images and acceleration data, which allows for accurate determination of the current vehicle's state and the movement path of preceding vehicles, enabling timely reminders for the current vehicle to start up.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple parameters (dimensional change of tail image, acoustic waves, lasers) are used to determine whether the preceding vehicle is moving, then the determination can be more comprehensive, but the data processing becomes complicated and the processing result becomes inaccurate
Solution Approach 1:
The patent extracts and uses only the necessary parameter (tail image dimensional change) to determine preceding vehicle motion state, eliminating unnecessary parameters like acoustic waves and lasers. This simplifies the detection system while maintaining determination accuracy by focusing on the most effective single parameter.
Solution Approach 2:
Instead of using multiple complex parameters to determine vehicle motion, the patent inverts the approach by using a simple parameter (tail image dimensional change) in combination with current vehicle state information to achieve accurate determination, thereby simplifying the overall system complexity.
2Measurement precision
If gravity sensor, CAN bus or GPS is used to determine the running state of the current vehicle, then the determination can be obtained, but a large error exists in the result
Solution Approach 1:
The patent merges the determination of current vehicle state with the determination of preceding vehicle motion by combining tail image dimensional change data with current vehicle state information. This combined approach allows for more accurate judgment of whether the preceding vehicle has started up, eliminating the large errors that exist when using gravity sensors, CAN bus, or GPS alone.
3Productivity
If the current vehicle fails to follow up timely when the preceding vehicle drives out, then traffic flow can be maintained, but traffic jams and accidents occur
Solution Approach 1:
The patent performs preliminary detection of preceding vehicle motion state by analyzing tail image dimensional changes before the current vehicle needs to respond. This allows the system to predict when the preceding vehicle will start up and provide timely warnings to the driver, enabling proactive response that maintains traffic flow while preventing accidents.
Solution Approach 2:
The patent implements a feedback mechanism that continuously monitors the dimensional changes of the preceding vehicle's tail image and provides real-time feedback to the driver through warnings. This feedback loop enables the current vehicle to adjust its behavior dynamically, maintaining safe following distances and timely response to preceding vehicle actions, thereby preventing traffic jams and accidents.
Data Source
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AI summary
A method, a device and a system for processing startup of a preceding vehicle, wherein, the method for processing startup of a preceding vehicle is applicable to the system for processing startup of a preceding vehicle, the system includes a video sensor and a gravity sensor. The method includes: collecting images in front of a vehicle head of a current vehicle by the video sensor and collecting acceleration information of the current vehicle by the gravity sensor (S102); determining a running state of the current vehicle based on image features in the images in front of the vehicle head and/or the acceleration information (S 104); acquiring a movement path of a target object in the images in front of the vehicle head when the running state of the current vehicle is a stationary state (S 106); determining whether to generate a reminder for reminding the current vehicle to startup based on the movement path of the target object (S108). The present application solves the problem that it is impossible to give an accurate reminder that the preceding vehicle has started-up during driving, such that when the preceding vehicle of the current vehicle drives out, it can promptly remind the current vehicle to move.