CN2808060Y - Pulse signal collection processor based on PCI bus style - Google Patents
Pulse signal collection processor based on PCI bus style Download PDFInfo
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- CN2808060Y CN2808060Y CNU2005201074460U CN200520107446U CN2808060Y CN 2808060 Y CN2808060 Y CN 2808060Y CN U2005201074460 U CNU2005201074460 U CN U2005201074460U CN 200520107446 U CN200520107446 U CN 200520107446U CN 2808060 Y CN2808060 Y CN 2808060Y
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Abstract
The utility model belongs to a pulse signal acquisition processor. Existing generally used pulse signal acquisition processors are based on a communication control mode between an SCM and a computer the mode is convenient for being used, but the mode has low signal acquisition rate and can not satisfy high speed acquisition and can not satisfy the requirements of simultaneous multipath acquisition, and the existing processors are not convenient for the research and teaching of labs and other medical institutions. The utility model is characterized in that the pulse signal acquisition processor is respectively composed of a pulse sensor, a signal conditioning circuit, a PCI data acquisition card and a computer, wherein the PCI data acquisition card adopts a PCI data acquisition card of which the lowest sampling rate of each path is larger than 100Hz, the A/D resolution is larger than 8 bits, and the PCI data acquisition card can satisfy the requirements of pulse signal acquisition. The utility model can exactly acquire and process pulse signals in a high speed, and the utility model is suitable for experimental, teaching, research and other fields.
Description
Technical field
This utility model relates to a kind of pulse signal Acquisition Processor, adopts the process software that runs on the computer to control the pulse data collection and realize the pulse data processing by the pci bus mode, is applicable to fields such as experiment, teaching and research.
Background technology
At present, the physiological signal acquisition instrument is comparatively extensive, but main acquisition target is medical convectional signalses such as electrocardio, brain electricity, and the instrument that relates to the pulse signal acquisition process is less relatively, because Chinese medicine to the attention and the further investigation of pulse information, needs high performance pulse signal Acquisition Processor.The present Communication Control mode of generally using that is based on single-chip microcomputer and intercomputer, this mode is easy to use, but its signals collecting speed is lower, can not satisfy high speed acquisition and reach the requirement of carrying out multi pass acquisition simultaneously, is not easy to the research and teaching use of medical institutions such as laboratory.
Summary of the invention
This utility model provides a kind of pulse signal Acquisition Processor based on the pci bus mode, and it can at a high speed, accurately carry out the collection and the processing of pulse signal, is applicable to fields such as experiment, teaching and research.
A kind of pulse signal Acquisition Processor that this utility model provides based on the pci bus mode, it is characterized in that: form by pulse transducer, signal conditioning circuit, pci data capture card, computer successively, the pci data capture card adopts the minimum sampling rate of each passage greater than 100HZ, the A/D resolution pci data capture card greater than 8, to satisfy the collection requirement of pulse signal.
Pulse transducer adopts the pressure-type pick off.The effect of signal conditioning circuit be to pulse signal amplify, filtering, for the A/D analog digital conversion provides suitable analogue signal.The pci data capture card is made of multi-channel switch, sampling holder, programmable amplifier, A/D and pci bus, adopt pci bus mode and computer to carry out transfer of data, convert the pulse digital signal through the pulse signal behind the signal condition to through A/D, by pci bus transfer of data is arrived calculator memory, computer adopts mainboard to have the desktop computer of PCI slot.Computer processing system comprises computer and processing software part, go control data transmission by software, at first select and open the input signal channel of pci data capture card, the digital data transmission after changing is arrived the internal memory of computer by pci bus, draw the pulse signal figure in real time, carry out time-frequency domain conversation and handle, need its eigenvalue of computational analysis by research.
This utility model is not limited to the acquisition process of pulse signal, also is suitable for the acquisition process of other physiological signals of human body, such as signals such as electrocardio, brain electricity.As long as change corresponding sensor type, gather the suitable conditioning signal modulate circuit of characteristics of physiological signal and the processing method in the selection process software on demand, can realize corresponding signals collecting and processing.
This utility model useful result is: the pulse signal acquisition processing system based on the pci data capture card is realized easily, is applicable to that laboratory carries out research and teaching, the ability that the pci data capture card has high speed acquisition and gathers the multichannel pulse signal simultaneously.
Description of drawings
Fig. 1 is the system block diagram based on the pulse signal Acquisition Processor of pci bus mode.
Fig. 2 is the flow chart based on process software in the pulse signal Acquisition Processor of pci bus mode.
The displayed map of Fig. 3 for gathering the two-way pulse signal simultaneously among the embodiment.
The specific embodiment
The input that at first connects pick off outfan and signal conditioning circuit, select the input channel in the pci data capture card input interface, be connected with the output of signal conditioning circuit, the pci data capture card is inserted the PCI slot of computer, open computer, behind the computer identification pci data capture card, start the process software system, in this software input interface function, select the title of the selected input signal channel of pci data capture card, can move this processing system.
Be object with the left hand radial artery place pulse signal of gathering two testers simultaneously in the present embodiment, promptly two pick offs are placed the CUN of tester's left hand respectively, carry out the experiment of two-way pulse collection, the outfan correspondence of pick off connects the two paths of signals modulate circuit, in the pci data capture card, select the double switch passage, the mode of in computer processing system, selecting signal input channel and adopting the multichannel single-point to sample, the operation process software can obtain the time-frequency domain figure and the characteristic made by oneself of part of signal, and this process software has the data of gathering are preserved simultaneously, the function that reads and print.Pulse signal is gathered result displayed such as accompanying drawing 3 in the present embodiment.
Claims (1)
1, a kind of pulse signal Acquisition Processor based on the pci bus mode is characterized in that: be made up of pick off, signal conditioning circuit, pci data capture card, computer; The pulse digital signal carries out the signal data transmission by pci bus mode and computer; Wherein the pci data capture card adopts the minimum sampling rate of each passage greater than 100HZ, the A/D resolution pci data capture card greater than 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2005201074460U CN2808060Y (en) | 2005-05-27 | 2005-05-27 | Pulse signal collection processor based on PCI bus style |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2005201074460U CN2808060Y (en) | 2005-05-27 | 2005-05-27 | Pulse signal collection processor based on PCI bus style |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2808060Y true CN2808060Y (en) | 2006-08-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2005201074460U Expired - Fee Related CN2808060Y (en) | 2005-05-27 | 2005-05-27 | Pulse signal collection processor based on PCI bus style |
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| Country | Link |
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| CN (1) | CN2808060Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100457023C (en) * | 2006-09-22 | 2009-02-04 | 北京工业大学 | Pulse signal processing method based on lifting ripple |
-
2005
- 2005-05-27 CN CNU2005201074460U patent/CN2808060Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100457023C (en) * | 2006-09-22 | 2009-02-04 | 北京工业大学 | Pulse signal processing method based on lifting ripple |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |