Transceiver Deviation Detection Using Echo Intensity Analysis
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Solution Overview
Problem
Existing object detection devices in vehicle control systems may experience deviations in transceivers due to impacts or shifts, leading to impaired functionality in detecting objects around the vehicle.
Innovation Solution
An object detection device equipped with a deviation detector that utilizes echo information and reference echo information to identify deviations in transceivers from their normal positions, allowing for accurate detection without additional equipment, using road surface information to determine the transceiver's normal position.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the transceiver is mounted on the vehicle, then object detection can be performed, but the transceiver may deviate from its normal position due to impacts
Solution Approach 1:
The system performs preliminary action by detecting transceiver position deviation before it significantly impacts object detection accuracy. The deviation detection unit continuously monitors the transceiver position and compares it against the normal position, enabling early detection and correction before the deviation compromises detection reliability.
Solution Approach 2:
The system implements feedback by using the detected transceiver position information to adjust and correct the detection results. When deviation is detected, the system generates corrected detection information that compensates for the positional offset, ensuring that object detection accuracy is maintained despite the transceiver's displaced position.
2Measurement precision
If additional equipment is added to detect transceiver deviation, then detection accuracy improves, but device complexity increases
Solution Approach 1:
The system applies universality by enabling the existing transceiver to perform multiple functions: both its original object detection function and an additional self-diagnosis function for detecting its own position deviation. The transceiver's received signals are processed to determine both object positions and the transceiver's own positional status, eliminating the need for separate monitoring equipment.
Solution Approach 2:
The system implements self-service through self-diagnosis, where the transceiver monitors and detects its own position deviation using its existing sensing capabilities. The deviation detection unit processes signals already being received by the transceiver to determine positional offset, allowing the system to self-monitor without requiring external diagnostic equipment.
3Object-affected harmful factors
If the transceiver position changes during vehicle operation, then impact detection is possible, but object detection accuracy deteriorates
Solution Approach 1:
The system applies parameter changes by dynamically adjusting the detection parameters based on the transceiver's actual position. When deviation is detected, the system modifies the detection information by applying the measured positional offset, effectively changing the reference frame and parameters used for object detection to compensate for the transceiver's displaced position.
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
Enables reliable detection of transceiver deviations caused by impacts or shifts, ensuring normal operation and obstacle detection, even during transitions from stopped to driving states, without requiring special equipment.
Implementation Method 1
a transceiver 21 that transmits a transmission wave and receives a reception wave generated by the transmission wave being reflected by the object
Implementation Method 2
a deviation detector 303 that detects a deviation of the transceiver 21 from a normal position that is a predetermined mounting position of the transceiver 21 on the basis of echo information indicating a temporal change in intensity of the reception wave
Data Source
AI summary
An object detection device is mounted on a moving body and detects an object that exists around the moving body, the object detection device including a transceiver that transmits a transmission wave and receives a reception wave generated by the transmission wave being reflected by the object, and a deviation detector that detects a deviation of the transceiver from a normal position that is a predetermined mounting position of the transceiver on the basis of echo information indicating a temporal change in intensity of the reception wave and reference echo information stored in a storage device in advance.