Dynamic multi-thread multi-channel ultrasonic signal processing method

Abstract

The invention discloses a dynamic multithread multichannel ultrasonic signal processing apparatus and a processing method, and belongs to the technical field of supersonic wave automatic flaw detection. The processing apparatus comprises a controller unit, an ultrasonic transmit-receive unit and an ultrasonic probe unit. A multithread processing mode is employed for dynamic signal trigger and acquisition, noise inhibition and defect analysis of the multichannel ultrasonic probe. By utilizing the processing apparatus and the processing method, an independent thread is employed for different processing processes and processing threads; by utilizing the multithread operation advantage of the multithread processor, ultrasonic signals of multiple ultrasonic channels are simultaneously subjected to data acquiring, processing and analyzing, the processor and memory resource are shared and data is prevented from conflicting, and a pointer-form memory management mode is employed for decreasing data moving time of the memory, so that the efficiencies of data acquiring, processing and analyzing of the ultrasonic signals are improved, the repeated transmission reception frequency of the ultrasonic signal apparatus is improved, and the reliability of an ultrasonic automatic flaw-detecting apparatus is improved.

Description

technical field [0001] The invention belongs to the technical field of ultrasonic automatic flaw detection, and particularly relates to a dynamic multi-thread multi-channel ultrasonic signal processing device and a processing method. Background technique [0002] Ultrasonic testing has a wide range of applications in the field of non-destructive testing technology. With the rapid development of computer systems and the continuous improvement of signal processing methods, ultrasonic automatic flaw detection systems have been widely used. The ultrasonic automatic flaw detection process includes: automatic operation control detection mechanism driven The ultrasonic probe performs scanning movement, automatically transmits ultrasonic waves, automatically detects ultrasonic echo signals, and performs filtering, analysis and defect analysis of ultrasonic signals. The above ultrasonic automatic flaw detection process all require the computer system to have a relatively fast operati...

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Problems solved by technology

[0003] The existing ultrasonic signal data processing process, from signal acquisition, signal processing to signal analysis, adopts sequential execution and single-threaded mode. It is necessary to wait for all data processing processes to be completed before entering the next ultrasonic transmission. The ultrasonic signal returns Wave acquisition-filtering-analysis data automatic processing process, when the sampling frequency is high, when processing multi-channel data at the same time, it is easy to have the problem of delay waiting, which reduces the frequency of repeated data acquisition, processing and analysis, especially In the process of ultrasonic flaw detection, the repetition frequency of ultrasonic transmission and reception is a crucial index. If the repetition frequency of ultrasonic transmission and reception is low, it will easily lead to the phenomenon of missed detection. Low-efficiency ultrasonic signal acquisition and processing devices and methods It will reduce the efficiency, accuracy and reliability of flaw detection work, and have a certain impact on the safety of flaw detection structures and parts

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