Ultrasonic Sensor External Correction for Structure Simplification
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Solution Overview
Problem
Existing sound wave sensors for distance detection become complex and large due to the need to transmit and receive sound waves of multiple frequencies for self-correction, which complicates their structure and functionality.
Innovation Solution
A sound wave sensor system that determines the presence and distance of a target object using a preset sensitivity and obtains correction values from external sources to adjust its sensitivity, simplifying the sensor structure and allowing for dynamic sensitivity correction based on environmental factors like temperature and humidity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the sound wave sensor transmits and receives sound waves of different frequencies for self-correction, then the sensor can correct its own sensitivity, but the sensor structure becomes more complex and larger
Solution Approach 1:
The correction function is extracted from the sound wave sensor and implemented as a separate external device. The sound wave sensor only performs distance detection, while the external device handles sensitivity correction by transmitting sound waves of different frequencies and calculating correction values, thereby simplifying the sensor structure while maintaining self-correction capability
Solution Approach 2:
An external correction device acts as an intermediary between the sound wave sensor and the correction process. This intermediary device receives detection results from the sensor, performs the complex multi-frequency correction operations, and returns correction values to the sensor, separating the detection and correction functions into different components
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
This approach simplifies the sound wave sensor structure, enhances its ability to accurately detect targets in varying environments, and allows for adaptable sensitivity settings, improving detection accuracy and ease of use across different conditions.
Implementation Method 1
a sound wave sensor for detecting a distance to a target object by transmitting and receiving a sound wave
Data Source
AI summary
A sound wave sensor in a distance detecting system determines a presence or absence of a target object and a distance to the target object by receiving, with a preset sensitivity, a reflected wave obtained from a transmitted sound wave reflected by the target object. A correction value used to correct the sensitivity of the sound wave sensor is obtained from outside the sound wave sensor, and the sensitivity is corrected by using this correction value.