Adaptive Ultrasonic Sensor Control for Motorcycle Detection
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Solution Overview
Problem
Existing obstacle detection systems, particularly ultrasonic sensors on automotive vehicles, struggle to reliably detect motorcycles and bicycles passing by, especially at distances greater than 1 meter and at high speeds, due to limited detection range and sensitivity.
Innovation Solution
The system employs multiple ultrasonic sensors with adjustable detection distance and sensitivity, a prediction device to anticipate approaching two-wheel vehicles, and illuminating devices to enhance visibility, along with communication for warning other vehicles, thereby ensuring stable detection and preventing accidents.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If ultrasonic sensors are used with normal detection distance and sensitivity, then the device can operate normally, but it cannot detect motorcycles passing by at distances more than 1 meter or at high speeds
Solution Approach 1:
The patent applies dynamics by making the detection distance and sensitivity of ultrasonic sensors adjustable rather than fixed. The control device dynamically changes sensor parameters based on predicted motorcycle approach scenarios, extending detection distance and increasing sensitivity when motorcycles are expected, thereby resolving the contradiction between normal operation and reliable detection of distant/high-speed motorcycles.
Solution Approach 2:
The patent directly applies parameter changes by modifying the detection distance and sensitivity parameters of ultrasonic sensors according to different operational scenarios. When a motorcycle approach is predicted, the system changes these parameters to extend detection range and improve sensitivity, enabling reliable detection of motorcycles that would otherwise be undetectable at distances beyond 1 meter or at high speeds.
2Reliability
If the detection distance and sensitivity are extended and increased, then motorcycles can be detected reliably, but the device complexity increases due to additional control mechanisms
Solution Approach 1:
The patent applies universality by designing a control device that performs multiple functions: it predicts motorcycle approaches, determines appropriate detection scenarios, and adjusts sensor parameters accordingly. This multi-functional approach consolidates what would otherwise require separate systems, extending detection capabilities while managing device complexity through functional integration.
Solution Approach 2:
The patent applies preliminary action through the motorcycle approach prediction function that anticipates upcoming detection scenarios before they occur. By predicting whether a motorcycle will approach and determining the appropriate scenario in advance, the system can pre-configure sensor parameters, simplifying real-time control while ensuring reliable detection when motorcycles are actually detected.
3Reliability
If ultrasonic sensors are set to detect low relative speed objects, then they can detect stationary or slow-moving objects, but they cannot stably detect motorcycles passing by at high speed
Solution Approach 1:
The patent applies dynamics by making the detection parameters adaptive rather than fixed. The system dynamically adjusts sensitivity and detection characteristics based on the predicted relative speed of approaching motorcycles, enabling stable detection of high-speed passing motorcycles while maintaining the ability to detect slower objects when appropriate.
Solution Approach 2:
The patent applies parameter changes by modifying sensor detection parameters according to the detected relative speed of motorcycles. When high-speed motorcycles are predicted to pass by, the system changes sensitivity and detection range parameters to maintain stable detection, resolving the contradiction between detecting low-speed objects and reliably detecting high-speed motorcycles.
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 extends detection range and sensitivity when a motorcycle is predicted to approach, ensuring reliable detection and providing timely warnings to drivers and other vehicles, enhancing traffic safety.
Implementation Method 1
ultrasonic sensors for detecting objects around an automotive vehicle
Implementation Method 2
A distance to the object is calculated based on a time delay between transmission of the ultrasonic wave and receipt of the reflected wave
Data Source
AI summary
A motorcycle-detecting device according to the present invention is mounted on an automotive vehicle. The device includes ultrasonic sensors for detecting objects around the vehicle, a device for predicting that a motorcycle is approaching the vehicle, and a device for adjusting a detection distance and a detection sensitivity of the ultrasonic sensors. When the predicting means predicts a motorcycle approach, the adjusting device makes the detection distance longer than a normal distance and the detection sensitivity higher than a normal sensitivity. Illuminating devices may be mounted on the vehicle to make the motorcycle passing by visible. A warning may be given to a driver when a motorcycle passing by is actually detected by the sensors. Information regarding the detected motorcycle may be given to other vehicles. According to the present invention, the motorcycle passing by the vehicle is surely and stably detected to thereby avoid any traffic accident with the motorcycle.