Digital signal processor (DSP)-based high-precision ultrasonic distance measurement system and distance measurement method

Abstract

The invention discloses a digital signal processor (DSP)-based high-precision ultrasonic distance measurement system. The system comprises a DSP, and an acoustic wave receiving and transmitting unit, an echo conditioning circuit, a digital correlation unit and a conversion and amplifying unit which are connected with the DSP, wherein the acoustic wave receiving and transmitting unit is connected with the echo conditioning circuit; the echo conditioning circuit is connected with the digital correlation unit; and the digital correlation unit is connected with the conversion and amplifying unit.The invention also discloses a DSP-based high-precision ultrasonic distance measurement method. By combining a DSP technology with a digital correlation technology, the rough measurement and the precise correction of a target distance to be measured are realized, the measurement precision of the system is effectively improved, and noise in the ultrasonic distance measurement step is effectively suppressed; and by calibrating the errors of the system, the influence of circuit factors and environmental factors on the distance measurement system is effectively eliminated, and the system has relatively high precision under the conditions of both micro distance measurement and super-large distance measurement.

Description

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AI Technical Summary

Benefits of technology

This patented innovator uses advanced technologies such as Digital Signal Processing (DSP), Quantum Computed Random Access Memory (QRM RAM or QRAM), Deep Learning algorithms for accurate measurements over large distances without being affected from external influences like temperature changes or other physical conditions that affect signal quality. It also includes techniques for reducing errors caused during transmission due to variations between different devices used together. Overall this new design allows for improved precision and reliability in measuring targets at long ranges while maintaining their ability to accurately measure smaller ones even when they move closer.

Problems solved by technology

The technical problem addressed in this patented text relates to improving the performance of an audio ruler (ultrasonics) based on its ability to detect changes caused by external influences like heat radiation from nearby objects without affecting their own movement. This requires accurate measurements over large distances while also minimizing any impacts upon the surrounding environment.

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