CN202471100U

CN202471100U - USB and DSP based supersonic reflectoscope

Info

Publication number: CN202471100U
Application number: CN 201120552670
Authority: CN
Inventors: 熊璞; 张磊; 张永恒
Original assignee: CHENGDU ZONGXUN TECHNOLOGY Co Ltd
Current assignee: CHENGDU ZONGXUN TECHNOLOGY Co Ltd
Priority date: 2011-12-27
Filing date: 2011-12-27
Publication date: 2012-10-03
Anticipated expiration: 2021-12-27

Abstract

Disclosed is a USB and DSP based supersonic reflectoscope, comprising an AD converter, a USB transmission mode, a CPLD, a DSP, and an SRAM, wherein the CPLD serves as the sequential and logic interface for the AD converter, SRAM, and DSP; the CPLD controls AD converter to start sampling and the synchronous ADC signals are simultaneously provided to the address counter and the writing signals of the SRAM; the sampling data are stored in the SRAM; the CPLD, after sampling, emits an interrupt signal to the DSP; and the DSP transmits the data into the USB interface buffer area via the CPLD. The USB and DSP based supersonic reflectoscope meets the demand for massive data processing and transmission resulting from multi-point collection during the ultrasonic detection, ensures the real-time property and stability of the system, and facilitates the connection with a notebook, thereby ensuring the implementation of analysis and determination on the spot.

Description

Supersonic reflectoscope based on USB and DSP

Technical field

The utility model relates to the acoustic measurement technical field, is specifically related to a kind of ultrasound measuring instrument based on USB and DSP.

Background technology

As everyone knows, thermometrically is human knowledge's nature, and a kind of means of nature remodeling can obtain quantitative information to the objective world through measuring people.A kind of important lossless detection method of ultrasound detection is at home and abroad used the most extensively, frequency of utilization Dynamic Non-Destruction Measurement high and the most with fastest developing speed.The performance of ultrasound detection instrument directly influences the reliability of ultrasound detection, and the development of related sciences such as its development and electronic technology is closely bound up.Improve location in the ultrasound detection, quantitatively and qualitatively reliability also is that the ultrasound detection instrument is realized digitizing, intelligent anxious key technical problem to be solved, the data volume that the solution of these problems all requires to obtain is big, picking rate is fast.

The utility model content

To above-mentioned prior art, the technical matters that the utility model will solve is: traditional supersonic reflectoscope picking rate data volume slow, that obtain is less, can not directly be transferred to PC.

In order to solve the problems of the technologies described above, the utility model adopts following technical scheme:

A kind of supersonic reflectoscope based on USB and DSP is provided; Comprise AD converter, it is characterized in that, also comprise USB transport module, scale programmable logic device CPLD, dsp processor and SRAM storer; Said scale programmable logic device CPLD is as the sequential and the logic interfacing of AD converter, SRAM storer and dsp processor; CPLD control AD converter begins sampling, and simultaneously synchronous ADC signal offers address counter and the write signal of SRAM, and sampled data deposits the SRAM storer in; Sampling finishes back CPLD and sends look-at-me to dsp processor, and DSP sends into the USB interface buffer zone to data through CPLD.

Said dsp processor control data carries out Filtering Processing to sampled data when USB chip data buffer zone sends data

Said scale programmable logic device CPLD is the interface device of DSP, USB module, AD converter spare and SARM storer.

Compared with prior art, the utlity model has following beneficial effect:

One, with DSP as instrument data collection plate core processor and with CPLD as interface; Can realize that high-speed data is mutual with the USB chip; Therefore satisfy the multiple spot collection is brought in the ultrasound detection data processing in enormous quantities and transmission requirements, guaranteed the real-time and the stability of system;

Two, USB interface is convenient is connected with notebook computer, so carries out reality for the scene and advance analysis and judgement assurance is provided.

Description of drawings

Fig. 1 is the structured flowchart of the utility model.

Embodiment

To combine accompanying drawing and embodiment that the utility model is done further to describe below.

A kind of supersonic reflectoscope based on USB and DSP; Comprise AD converter, it is characterized in that, also comprise USB transport module, scale programmable logic device CPLD, dsp processor and SRAM storer; Said scale programmable logic device CPLD is as the sequential and the logic interfacing of AD converter, SRAM storer and dsp processor; Outside sampling triggering back CPLD control AD converter begins sampling, and simultaneously synchronous ADC signal offers address counter and the write signal of SRAM, and sampled data deposits the SRAM storer in; Sampling finishes back CPLD and sends look-at-me to dsp processor, and DSP sends into the USB interface buffer zone to data through CPLD.Said dsp processor control data sends the process of data to USB chip data buffer zone, and is the interface device of DSP, USB module, AD converter spare and SARM storer to the said scale programmable logic device CPLD of sampled data Filtering Processing.

With DSP as instrument data collection plate core processor and with CPLD as interface; Can realize that high-speed data is mutual with the USB chip; Therefore satisfy the multiple spot collection is brought in the ultrasound detection data processing in enormous quantities and transmission requirements, guaranteed the real-time and the stability of system.USB interface is convenient to be connected with notebook computer, so carries out reality for the scene and advance analysis and judgement assurance is provided.

Claims

1. supersonic reflectoscope based on USB and DSP; Comprise AD converter, it is characterized in that, also comprise USB transport module, scale programmable logic device CPLD, dsp processor and SRAM storer; Said scale programmable logic device CPLD is as the sequential and the logic interfacing of AD converter, SRAM storer and dsp processor; CPLD control AD converter begins sampling, and simultaneously synchronous ADC signal offers address counter and the write signal of SRAM, and sampled data deposits the SRAM storer in; Sampling finishes back CPLD and sends look-at-me to dsp processor, and DSP sends into the USB interface buffer zone to data through CPLD.

2. the supersonic reflectoscope based on USB and DSP according to claim 1 is characterized in that, said dsp processor control data when USB chip data buffer zone sends data to the sampled data Filtering Processing.

3. the supersonic reflectoscope based on USB and DSP according to claim 1 is characterized in that, said scale programmable logic device CPLD is the interface device of DSP, USB module, AD converter spare and SARM storer.