CN103487511B - Dynamic multi streaming channel ultrasonic signal processing method - Google Patents
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Abstract
Dynamic multi streaming channel ultrasonic signal processing apparatus and disposal route, belong to technical field of ultrasonic automatic flaw detection.Treating apparatus of the present invention comprises controller unit, ultrasonic Transmit-Receive Unit and ultrasonic probe unit.This invention adopts the processing mode of multithreading, achieve the signal dynamically completing channel ultrasonic probe to trigger and gather, squelch and defect analysis, utilize apparatus of the present invention and disposal route, independently thread is all adopted to different processing procedures and processing threads, utilize the multithreading computing advantage of multiline procedure processor, data acquisition is carried out to the ultrasonic signal of multiple ultrasonic passage simultaneously, treatment and analyses, share processor and memory source, protected data does not clash, adopt the Memory Storage of pointer form, reduce the time of internal memory Mobile data, thus improve the data acquisition of ultrasonic signal, the efficiency for the treatment of and analyses, improve the repeat its transmission receive frequency of ultrasonic signal device, improve the reliability of supersonic automatic flaw detector.
Description
Technical field
The invention belongs to technical field of ultrasonic automatic flaw detection, particularly a kind of dynamic multi streaming channel ultrasonic signal processing apparatus and disposal route.
Background technology
Ultrasonic Detection has a wide range of applications in technical field of nondestructive testing, along with the high speed development of computer system and updating of signal processing method, ultrasonic automatic flaw detecting system is widely used, ultrasonic automatic flaw detecting process, comprising: automatically run and control testing agency and drive ultrasonic probe to carry out scanning campaign, automatically launch ultrasound wave, automatically detect ultrasound echo signal and carry out the filtering of ultrasonic signal, analysis and defect analysis.Above ultrasonic automatic flaw detecting process, all needs computer system to have operational efficiency faster, to improve the ultrasonic repeat its transmission receive frequency in scanning process.
The data handling procedure of existing ultrasonic signal, from the collection of signal, the process of signal is to the analysis of signal, what adopt is that order performs, single-threaded mode, need to wait for that all data handling procedures just can enter the transmitting of next ultrasound wave after completing, the database preparation process of ultrasonic signal echo acquirement-filtering-analysis, when sample frequency is higher, when multi-channel data is processed simultaneously, just easily there is the problem that time delay is waited for, reduce Data duplication collection, process and the frequency analyzed, particularly in ultrasonic inspection process, ultrasonic launch and accept repetition frequency is a vital index, if the repetition frequency that ultrasound emission receives is low, just easily cause leaking the phenomenon visited to occur, inefficient ultrasonic signal acquisition and treating apparatus and method can reduce the work efficiency of flaw detection work, accuracy and reliability, security for flaw detection structure and part affects.
Summary of the invention
The object of the invention is the weak point for overcoming prior art, for multiple UT (Ultrasonic Testing) passage, realize real time emission ultrasound wave, gather ultrasonic signal, the ultrasonic signal of the different passage for the treatment of and analyses simultaneously, improve ultrasound wave and launch the repetition frequency with echo wave signal acquisition, propose a kind of channel ultrasonic signal receiving/transmission device based on multithreading and disposal route.
Technical scheme of the present invention is as follows:
A kind of dynamic multi streaming channel ultrasonic signal processing apparatus, is characterized in that: this ultrasonic signal processing device comprises controller unit, ultrasonic Transmit-Receive Unit and ultrasonic probe unit; Wherein, described controller unit comprises multiline procedure processor, at least one A/D converter, at least one D/A converter and at least one I/O controller; Described multiline procedure processor comprises signal picker, noise suppressor and defect analyzer; Described ultrasonic Transmit-Receive Unit comprises at least one ultrasonic transceiver; Described ultrasonic probe unit comprises at least one ultrasonic probe; The input end of each described A/D converter connects with the ultrasound echo signal output terminal of corresponding ultrasonic transceiver; The described output terminal of each D/A converter is connected with the gain set input end of ultrasonic transceiver; The described output terminal of each I/O controller connects with the ultrasonic trigger pip input end of corresponding ultrasonic transceiver; The ultrasonic excitation output terminal of each described ultrasonic transceiver connects with the ultrasonic excitation input end of corresponding ultrasonic probe; The ultrasonic echo input end of each described ultrasonic transceiver connects with the ultrasonic echo output terminal of corresponding ultrasonic probe; Described signal picker comprises at least one collection signal queue; Described noise suppressor comprises at least one filtering signal queue; Described defect analyzer comprises at least one analytic signal queue; Described signal picker gathers ultrasonic signal from each A/D converter and puts into corresponding collection signal queue head; Described noise suppressor reads ultrasonic signal from the afterbody each collection signal queue and puts into the head of corresponding filtering signal queue; Described defect analyzer reads ultrasonic signal from the afterbody each filtering signal queue and puts into the head of corresponding analytic signal queue.
Described controller unit adopts the combination of one or more in computing machine, embedded computer, smart mobile phone and Intelligent flat computer.
Described multiline procedure processor adopts the combination of one or more in multi thread CPU, multithreading GPU, FPGA and DSP.
Described ultrasonic probe adopts the combination of one or more in piezoelectric supersonic probe, electromagnetic ultrasonic probe and laser-ultrasound probe.
The ultrasonic transceiver of described ultrasonic Transmit-Receive Unit adopts the combination of one or more in piezoelectric supersonic transceiver, electromagnetic acoustic transceiver and the laser-ultrasound transceiver corresponding with ultrasonic probe type.
A kind of dynamic multi streaming channel ultrasonic signal processing method provided by the invention, is characterized in that the method comprises the steps:
A) distribute collection signal queue memory block, can store the address of L collection signal memory block, this queue adopts tail of the queue to join the team, and head of the queue goes out the queue data structure of team; Distribute filtering signal queue memory block, can the address of a store M filtering signal memory block, this queue employing tail of the queue is joined the team, and head of the queue goes out the queue data structure of team; Distribute analytic signal queue memory block, can store address, N number of analytic signal memory block, this queue adopts tail of the queue to join the team, and head of the queue goes out the queue data structure of team;
B) start ultrasonic signal acquisition thread, ultrasonic signal squelch thread and ultrasonic signal defect analysis thread simultaneously;
C) the ultrasonic signal acquisition thread described in adopts following steps:
I. distributing signal memory block, this address, memory block is P;
Ii. read in ultrasonic signal from the A/D converter of correspondence, and put into the data storage area that address is P;
Iii. judge that whether collection signal queue is full, if full, then wait for until at least one position is vacated in collection signal queue;
Iv. signal storage regional address P enters collection signal queue;
V. master routine is the need of end, if terminated, then terminates thread, otherwise jumps to step I;
D) the ultrasonic signal squelch thread described in comprises the steps:
I. whether filtering signal queue is full, as less than, then jump to step I i, as full, then jump to step v;
Ii. the head of the queue signal storage regional address Q dequeue of collection signal queue;
Iii. digital filtering process is carried out, restraint speckle to the signal of signal storage regional address Q;
Iv. by signal storage regional address Q stored in filtering signal queue;
V. master routine is the need of end, and "Yes" then terminates ultrasonic signal squelch thread; "No" then jumps to step I;
E) the ultrasonic signal defect analysis thread described in comprises the steps:
I. whether analytic signal queue is full, as less than, then jump to step I i, as full, then jump to step v;
Ii. the head of the queue signal storage regional address R dequeue of filtering signal queue;
Iii. defect analysis is carried out, defect recognition to the signal of signal storage regional address R;
Iv. defect information is preserved;
V. the space, signal storage that address is R is discharged;
Vi. master routine is the need of end, and "Yes" then clears up data space corresponding to all signal storage regional addresss in analytic signal queue, terminates ultrasonic signal defect analysis thread; "No" then jumps to step I;
F) whether ultrasonic signal acquisition thread, ultrasonic signal squelch thread and ultrasonic signal defect analysis thread all terminate, and "Yes" then terminates program, and "No" then waits for that all threads all terminate.
The present invention compared with prior art, has the following advantages and high-lighting effect:
The present invention adopts the processing mode of multithreading, achieve the signal dynamically completing channel ultrasonic probe to trigger and gather, squelch and defect analysis, utilize apparatus of the present invention and disposal route, independently thread is all adopted to different processing procedures and processing threads, utilize the multithreading computing advantage of multiline procedure processor, data acquisition is carried out to the ultrasonic signal of multiple ultrasonic passage simultaneously, treatment and analyses, share processor and memory source, protected data does not clash, adopt the Memory Storage of pointer form, reduce the time of internal memory Mobile data, thus improve the data acquisition of ultrasonic signal, the efficiency for the treatment of and analyses, improve the repeat its transmission receive frequency of ultrasonic signal device, improve the reliability of supersonic automatic flaw detector.
Accompanying drawing explanation
Fig. 1 is dynamic multi streaming channel ultrasonic signal processing apparatus structural drawing of the present invention.
Fig. 2 is the signal flow graph of multiline procedure processor embodiment illustrated in fig. 1.
Fig. 3 is signal processing method process flow diagram embodiment illustrated in fig. 1.
1-controller unit; 10-multiline procedure processor; 11-A/D converter;
12-D/A converter; 13-I/O controller;
101-signal picker; 102-noise suppressor; 103-defect analyzer;
The queue of 104-collection signal; The queue of 105-filtering signal; The queue of 106-analytic signal;
The ultrasonic Transmit-Receive Unit of 2-; 3-ultrasonic probe unit; 31-ultrasonic probe;
41-ultrasonic signal acquisition thread; 42-ultrasonic signal squelch thread; 43-ultrasonic signal analyzes thread;
CPU-Central Processing Unit, central processing unit;
GPU-Graphics Processing Unit, graphic process unit;
FPGA-Field Programmable Gate Array, field programmable gate array;
DSP-Digital Signal Processor, digital signal processor.
Embodiment
The content of concrete structure of the present invention, principle of work is further described below in conjunction with drawings and Examples.
Fig. 1 is dynamic multi streaming channel ultrasonic signal processing apparatus structural drawing of the present invention, and this device comprises controller unit 1, ultrasonic Transmit-Receive Unit 2 and ultrasonic probe unit 3; Wherein, described controller unit 1 comprises multiline procedure processor 10, at least one A/D converter 11, at least one D/A converter 12 and at least one I/O controller 13; Described multiline procedure processor 10 comprises signal picker 101, noise suppressor 102 and defect analyzer 103; Described ultrasonic Transmit-Receive Unit 2 comprises at least one ultrasonic transceiver 21; Described ultrasonic probe unit 3 comprises at least one ultrasonic probe 31; The input end of each described A/D converter 11 connects with the ultrasound echo signal output terminal of corresponding ultrasonic transceiver 21; The described output terminal of each D/A converter 12 is connected with the gain set input end of ultrasonic transceiver 21; The described output terminal of each I/O controller 13 connects with the ultrasonic trigger pip input end of corresponding ultrasonic transceiver 21; The ultrasonic excitation output terminal of each described ultrasonic transceiver 21 connects with the ultrasonic excitation input end of corresponding ultrasonic probe 31; The ultrasonic echo input end of each described ultrasonic transceiver 21 connects with the ultrasonic echo output terminal of corresponding ultrasonic probe 31; Described signal picker 101 comprises at least one collection signal queue 104; Described noise suppressor 102 comprises at least one filtering signal queue 105; Described defect analyzer 103 comprises at least one analytic signal queue 106; Described signal picker 101 gathers ultrasonic signal from each A/D converter 11 and puts into corresponding collection signal queue 104 head; Described noise suppressor 102 reads ultrasonic signal from the afterbody each collection signal queue 104 and puts into the head of corresponding filtering signal queue 105; Described defect analyzer 103 reads ultrasonic signal from the afterbody each filtering signal queue 105 and puts into the head of corresponding analytic signal queue 106.
Described controller unit 1 adopts the combination of one or more in computing machine, embedded computer, smart mobile phone and Intelligent flat computer.In the present embodiment, controller unit 1 adopts computing machine.
Described multiline procedure processor 10 adopts the combination of one or more in multi thread CPU, multithreading GPU, FPGA and DSP.In the present embodiment, multiline procedure processor 10 adopts four core eight thread CPU.
Described ultrasonic probe 31 adopts the combination of one or more in piezoelectric supersonic probe, electromagnetic ultrasonic probe and laser-ultrasound probe.In the present embodiment, ultrasonic probe 31 all adopt centre frequency be 2.5MHz piezoelectric supersonic probe.
The ultrasonic transceiver 21 of described ultrasonic Transmit-Receive Unit 2 adopts the combination of one or more in piezoelectric supersonic transceiver, electromagnetic acoustic transceiver and the laser-ultrasound transceiver corresponding with ultrasonic probe 31 type.In the present embodiment, ultrasonic transceiver 21 all adopts piezoelectric supersonic transceiver.
Described dynamic multi streaming channel ultrasonic signal processing method adopts following steps for each road ultrasound acquisition signal:
A) distribute collection signal queue 104 memory block, can store the address of L collection signal memory block, this queue adopts tail of the queue to join the team, and head of the queue goes out the queue data structure of team; Distribute filtering signal queue 105 memory block, can the address of a store M filtering signal memory block, this queue employing tail of the queue is joined the team, and head of the queue goes out the queue data structure of team; Distribute analytic signal queue 106 memory block, can store address, N number of analytic signal memory block, this queue adopts tail of the queue to join the team, and head of the queue goes out the queue data structure of team;
B) start ultrasonic signal acquisition thread 41, ultrasonic signal squelch thread 42 and ultrasonic signal defect analysis thread 43 simultaneously;
C) the ultrasonic signal acquisition thread 41 described in adopts following steps:
I. distributing signal memory block, this address, memory block is P;
Ii. read in ultrasonic signal from the A/D converter 11 of correspondence, and put into the data storage area that address is P;
Iii. judge that whether collection signal queue 104 is full, if full, then wait for until at least one position is vacated in collection signal queue 104;
Iv. signal storage regional address P enters collection signal queue 104;
V. master routine is the need of end, if terminated, then terminates thread, otherwise jumps to step I;
D) the ultrasonic signal squelch thread 42 described in comprises the steps:
I. whether filtering signal queue 120 is full, as less than, then jump to step I i, as full, then jump to step v;
Ii. the head of the queue signal storage regional address Q dequeue of collection signal queue 104;
Iii. digital filtering process is carried out, restraint speckle to the signal of signal storage regional address Q; In the present embodiment, adopt bandpass filtering method, arranging lower limiting frequency is 1.5MHz, and upper cut off frequency is 6MHz;
Iv. by signal storage regional address Q stored in filtering signal queue 105;
V. master routine is the need of end, and "Yes" then terminates ultrasonic signal squelch thread; "No" then jumps to step I;
E) the ultrasonic signal defect analysis thread 43 described in comprises the steps:
I. whether analytic signal queue 106 is full, as less than, then jump to step I i, as full, then jump to step v;
Ii. the head of the queue signal storage regional address R dequeue of filtering signal queue 105;
Iii. defect analysis is carried out, defect recognition to the signal of signal storage regional address R; In the present embodiment, to adopt in DAC curve threshold decision method analytic signal whether existing defects signal;
Iv. defect information is preserved;
V. the space, signal storage that address is R is discharged;
Vi. master routine is the need of end, and "Yes" then clears up data space corresponding to all signal storage regional addresss in analytic signal queue 106, terminates ultrasonic signal defect analysis thread; "No" then jumps to step I;
F) whether ultrasonic signal acquisition thread 41, ultrasonic signal squelch thread 42 and ultrasonic signal defect analysis thread 43 all terminate, and "Yes" then terminates program, and "No" then waits for that all threads all terminate.
The present invention adopts the processing mode of multithreading, achieve the signal dynamically completing channel ultrasonic probe to trigger and gather, squelch and defect analysis, utilize apparatus of the present invention and disposal route, independently thread is all adopted to different processing procedures and processing threads, utilize the multithreading computing advantage of multiline procedure processor, data acquisition is carried out to the ultrasonic signal of multiple ultrasonic passage simultaneously, treatment and analyses, share processor and memory source, protected data does not clash, adopt the Memory Storage of pointer form, reduce the time of internal memory Mobile data, thus improve the data acquisition of ultrasonic signal, the efficiency for the treatment of and analyses, improve the repeat its transmission receive frequency of ultrasonic signal device, improve the reliability of supersonic automatic flaw detector.
Claims (5)
1. a dynamic multi streaming channel ultrasonic signal processing method, is characterized in that: the signal processing apparatus that the method adopts comprises controller unit (1), ultrasonic Transmit-Receive Unit (2) and ultrasonic probe unit (3); Wherein, described controller unit (1) comprises multiline procedure processor (10), at least one A/D converter (11), at least one D/A converter (12) and at least one I/O controller (13); Described multiline procedure processor (10) comprises signal picker (101), noise suppressor (102) and defect analyzer (103); Described ultrasonic Transmit-Receive Unit (2) comprises at least one ultrasonic transceiver (21); Described ultrasonic probe unit (3) comprises at least one ultrasonic probe (31); The input end of described each A/D converter (11) connects with the ultrasound echo signal output terminal of corresponding ultrasonic transceiver (21); The output terminal of described each D/A converter (12) is connected with the gain set input end of ultrasonic transceiver (21); The described output terminal of each I/O controller (13) connects with the ultrasonic trigger pip input end of corresponding ultrasonic transceiver (21); The ultrasonic excitation output terminal of described each ultrasonic transceiver (21) connects with the ultrasonic excitation input end of corresponding ultrasonic probe (31); The ultrasonic echo input end of described each ultrasonic transceiver (21) connects with the ultrasonic echo output terminal of corresponding ultrasonic probe (31); Described signal picker (101) comprises at least one collection signal queue (104); Described noise suppressor (102) comprises at least one filtering signal queue (105); Described defect analyzer (103) comprises at least one analytic signal queue (106); Described signal picker (101) gathers ultrasonic signal from each A/D converter (11) and puts into corresponding collection signal queue (104) head; Described noise suppressor (102) reads ultrasonic signal from the afterbody each collection signal queue (104) and puts into the head of corresponding filtering signal queue (105); Described defect analyzer (103) reads ultrasonic signal from the afterbody each filtering signal queue (105) and puts into the head of corresponding analytic signal queue (106);
Described ultrasonic signal processing method comprises the steps:
A) distribute collection signal queue (104) memory block, can store the address of L collection signal memory block, this queue adopts tail of the queue to join the team, and head of the queue goes out the queue data structure of team; Distribute filtering signal queue (105) memory block, can the address of a store M filtering signal memory block, this queue employing tail of the queue is joined the team, and head of the queue goes out the queue data structure of team; Distribute analytic signal queue (106) memory block, can store address, N number of analytic signal memory block, this queue adopts tail of the queue to join the team, and head of the queue goes out the queue data structure of team;
B) start ultrasonic signal acquisition thread (41), ultrasonic signal squelch thread (42) and ultrasonic signal defect analysis thread (43) simultaneously;
C) the ultrasonic signal acquisition thread (41) described in adopts following steps:
I. distributing signal memory block, this address, memory block is P;
Ii. read in ultrasonic signal from the A/D converter (11) of correspondence, and put into the data storage area that address is P;
Iii. judge that whether collection signal queue (104) is full, if full, then wait for until at least one position is vacated in collection signal queue (104);
Iv. signal storage regional address P enters collection signal queue (104);
V. master routine is the need of end, if terminated, then terminates thread, otherwise jumps to step I;
D) the ultrasonic signal squelch thread (42) described in comprises the steps:
Whether i. filtering signal queue (120) is full, as less than, then jump to step I i, as full, then jump to step v;
The head of the queue signal storage regional address Q dequeue of ii. collection signal queue (104);
Iii. digital filtering process is carried out, restraint speckle to the signal of signal storage regional address Q;
Iv. by signal storage regional address Q stored in filtering signal queue (105);
V. master routine is the need of end, and "Yes" then terminates ultrasonic signal squelch thread; "No" then jumps to step I;
E) the ultrasonic signal defect analysis thread (43) described in comprises the steps:
Whether i. analytic signal queue (106) is full, as less than, then jump to step I i, as full, then jump to step v;
The head of the queue signal storage regional address R dequeue of ii. filtering signal queue (105);
Iii. defect analysis is carried out, defect recognition to the signal of signal storage regional address R;
Iv. defect information is preserved;
V. the space, signal storage that address is R is discharged;
Vi. master routine is the need of end, and "Yes" then clears up data space corresponding to all signal storage regional addresss in analytic signal queue (106), terminates ultrasonic signal defect analysis thread; "No" then jumps to step I;
Whether ultrasonic signal acquisition thread (41), ultrasonic signal squelch thread (42) and ultrasonic signal defect analysis thread (43) all terminate, and "Yes" then terminates program, and "No" then waits for that all threads all terminate.
2. a kind of dynamic multi streaming channel ultrasonic signal processing method according to claim 1, is characterized in that: described controller unit (1) adopts the combination of one or more in computing machine, embedded computer, smart mobile phone and Intelligent flat computer.
3. a kind of dynamic multi streaming channel ultrasonic signal processing method according to claim 1, is characterized in that: described multiline procedure processor (10) adopts the combination of one or more in multi thread CPU, multithreading GPU, FPGA and DSP.
4. a kind of dynamic multi streaming channel ultrasonic signal processing method according to claim 1, is characterized in that: described ultrasonic probe (31) adopts the combination of one or more in piezoelectric supersonic probe, electromagnetic ultrasonic probe and laser-ultrasound probe.
5. a kind of dynamic multi streaming channel ultrasonic signal processing method according to claim 4, is characterized in that: the ultrasonic transceiver (21) of described ultrasonic Transmit-Receive Unit (2) adopts the combination of one or more in piezoelectric supersonic transceiver, electromagnetic acoustic transceiver and the laser-ultrasound transceiver corresponding with ultrasonic probe (31) type.
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| CN103822974B (en) * | 2014-03-12 | 2016-01-27 | 成都信息工程学院 | Ultrasonic survey penetrating detection system |
| CN103956991B (en) * | 2014-04-10 | 2017-09-29 | 北京遥测技术研究所 | A kind of FIR filtering Parallel Realization methods based on CPU/GPU heterogeneous platforms |
| CN103956988B (en) * | 2014-05-06 | 2017-04-26 | 北京遥测技术研究所 | Ka frequency band large dynamic high-accuracy amplification attenuation module |
| CN105534545A (en) * | 2015-12-11 | 2016-05-04 | 青岛海信医疗设备股份有限公司 | Ultrasonic device |
| CN109488886B (en) * | 2017-09-11 | 2024-01-23 | 清华大学 | Data line concentration system of detector in oil and gas pipeline and time sequence control method |
| CN114166159B (en) * | 2021-11-11 | 2022-09-20 | 大连理工大学 | Multifunctional portable ultrasonic measuring instrument based on PCI/PCIe and use method |
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