CN103920202A - Signal acquisition device and method - Google Patents
Signal acquisition device and method Download PDFInfo
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- CN103920202A CN103920202A CN201410172397.2A CN201410172397A CN103920202A CN 103920202 A CN103920202 A CN 103920202A CN 201410172397 A CN201410172397 A CN 201410172397A CN 103920202 A CN103920202 A CN 103920202A
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- input selector
- multichannel input
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M1/00—Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
- A61M1/14—Dialysis systems; Artificial kidneys; Blood oxygenators ; Reciprocating systems for treatment of body fluids, e.g. single needle systems for hemofiltration or pheresis
- A61M1/28—Peritoneal dialysis ; Other peritoneal treatment, e.g. oxygenation
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- Urology & Nephrology (AREA)
- Heart & Thoracic Surgery (AREA)
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- Biomedical Technology (AREA)
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Abstract
The invention provides a signal acquisition device. The signal acquisition device comprises a plurality of detection modules and a multipath input selector, wherein the detection modules are used for obtaining monitoring parameters of peritoneal dialysis, the multipath input selector is used for sequentially reading the monitoring parameters obtained through the detection modules connected with data channels of the multipath input selector, and at least one detection module in the multiple detection modules is simultaneously connected with at least two data channels of the multipath input selector. Due to the adoption of the signal acquisition device, data acquisition accuracy can be improved. In addition, the invention further provides a signal acquisition method.
Description
Technical field
The present invention relates to medical instruments field, particularly relate to a kind of signal pickup assembly and signal acquisition method.
Background technology
Peritoneal dialysis is to utilize the peritoneum of human body self as a kind of dialysis of dialyzer.In the process of monitoring parameter that gathers peritoneal dialysis, traditional way is by several detection modules, to obtain the monitoring parameter of peritoneal dialysis, uses multichannel input selector to read the monitoring parameter that connected these several detection modules obtain.Yet in conventional art, each detection module connects a data channel of multichannel input selector, like this, in a collection period, the monitoring parameter obtaining for same detection module, multichannel input selector also can only gather monitoring parameter one time, makes the collection of monitoring parameter accurate not.
Summary of the invention
Based on this, be necessary to provide a kind of signal pickup assembly and signal acquisition method that can improve the degree of accuracy of monitoring parameter collection.
A kind of signal pickup assembly, comprise several detection modules and a multichannel input selector, described detection module is for obtaining the monitoring parameter of peritoneal dialysis, described multichannel input selector is for reading in order the described monitoring parameter of described several detection modules acquisitions that are connected with its data channel, and in described several detection modules, at least one detection module is connected with at least two data channel of described multichannel input selector simultaneously.
In an embodiment, described device also comprises therein:
Analog-digital converter, is converted to digital signal for the described monitoring parameter that described multichannel input selector is read in order.
In an embodiment, described device also comprises therein:
Processor, for calculating in sample calculation the meansigma methods of the described monitoring parameter of each detection module acquisition in the cycle according to described digital signal.
In an embodiment, described several detection modules comprise 4 pump chamber pressure transducers therein.
In an embodiment, described 4 pump chamber pressure transducers are all connected with at least two data channel of described multichannel input selector therein.
In an embodiment, described multichannel input selector comprises 16 data channel therein, and described several detection modules are specially 12.
A signal acquisition method, comprises the steps:
Several detection modules obtain the monitoring parameter of peritoneal dialysis, and in described several detection modules, at least one detection module is connected with at least two data channel of multichannel input selector simultaneously;
Described multichannel input selector reads the described monitoring parameter of described several detection modules acquisitions that are connected with its data channel in order.
In an embodiment, described method also comprises therein:
The described monitoring parameter that analog-digital converter reads described multichannel input selector is in order converted to digital signal.
In an embodiment, described method also comprises therein:
Processor calculates in sample calculation the meansigma methods of the described monitoring parameter of each detection module acquisition in the cycle according to described digital signal.
In an embodiment, described several detection modules comprise 4 pump chamber pressure transducers therein, and described 4 pump chamber pressure transducers are all connected with at least two data channel of described multichannel input selector.
Above-mentioned signal pickup assembly and signal acquisition method, because at least one detection module in several detection modules is connected with at least two data channel of multichannel input selector simultaneously, like this, multichannel input selector reads in the process of the monitoring parameter that several detection modules of being connected with its data channel obtain in order, multichannel input selector, in a collection period, can read the monitoring parameter that at least twice same detection module obtains by least two data channel.Namely in a collection period, the monitoring parameter of the peritoneal dialysis that same detection module obtains can collected at least twice, expanded the sample number of data acquisition, the increase of sample number improves data computational accuracy, thereby has improved the degree of accuracy that Monitoring Data gathers.
Accompanying drawing explanation
Fig. 1 is the structural representation of a signal pickup assembly in embodiment;
Fig. 2 is the structural representation of the signal pickup assembly in another embodiment;
Fig. 3 is the schematic diagram that utilizes the monitoring parameter that 12 detection modules of 16 data transmission channel collections obtain in an embodiment;
Fig. 4 adopts the structural representation of the signal pickup assembly of 4 pump chamber pressure transducers in an embodiment;
Fig. 5 is the schematic flow sheet of signal acquisition method in an embodiment.
The specific embodiment
As shown in Figure 1, in one embodiment, a kind of signal pickup assembly is provided, this device comprises several detection modules 102 and a multichannel input selector 104, wherein, detection module 102 is for obtaining the monitoring parameter of peritoneal dialysis, and multichannel input selector 104 is for reading in order the monitoring parameter of several detection modules 102 acquisitions that are connected with its data channel.In the present embodiment, as shown in Figure 1, in several detection modules 102, at least one detection module 102 is connected with at least two data channel of multichannel input selector 104 simultaneously.Multichannel input selector 104 also for reading by least two data channel the monitoring parameter that at least twice same detection module 102 obtains in a collection period.
In the present embodiment, because at least one detection module 102 is connected with at least two data channel of multichannel input selector 104 simultaneously, make multichannel input selector 104 in a collection period, can read the monitoring parameter that at least twice same detection module 102 obtains by least two data channel.Namely in a collection period, the monitoring parameter of the peritoneal dialysis that same detection module 102 obtains can collected at least twice, expanded the sample number of data acquisition, the increase of sample number improves data computational accuracy, thereby has improved the degree of accuracy that Monitoring Data gathers.
In addition; in conventional art; in order to improve data computational accuracy; conventionally can adopt the many multichannel input selectors of data channel; such as; for 12 detection modules, conventionally can use the multichannel input selector with 16 data channel, can make like this some data channel of multichannel input selector idle.The present embodiment, can adopt the existing data channel connection detection module of multichannel input selector, thereby realize in a collection period, can carry out at least twice read to the monitoring parameter of some outbalances, can improve the degree of accuracy that Monitoring Data gathers, existing resource can be made full use of again, extra cost can be do not increased.
In one embodiment, as shown in Figure 2, signal pickup assembly also comprises analog-digital converter 106 and processor 108, wherein: analog-digital converter 106 is converted to digital signal for the monitoring parameter that multichannel input selector 104 is read in order.The meansigma methods of the monitoring parameter that processor 108 obtains for each detection module 102 calculating in sample calculation according to digital signal in the cycle.
Collection period, refers to that multichannel input selector is by the data channel of all connection detection module, reads successively once the time that monitoring parameter that the corresponding detection module connecting obtains spends.In the sample calculation cycle, be the meansigma methods that finger processor calculates once the monitoring parameter of each detection module acquisition at regular intervals, and this certain hour is the sample calculation cycle.Be appreciated that the sample calculation cycle should be greater than the sampling period.Preferably, the sample calculation cycle integral multiple that is the sampling period.
In a collection period, if the monitoring parameter that detection module 102 obtains collected at least twice, after a plurality of collection period, the sample number of the monitoring parameter that multichannel input selector 104 collects will increase.Like this, during the meansigma methods of processor 108 monitoring parameter that each detection module 102 in the cycle obtains in calculating sample calculation, will obtain data acquisition result more accurately.Preferably, during the meansigma methods of the monitoring parameter that processor 108 obtains at each detection module 102 of calculating, can remove a maximum and minima, the accuracy of calculating further to improve data.
In one embodiment, multichannel input selector comprises 16 data channel, and several detection modules are specially 12.Shown in Fig. 3, in the present embodiment, 12 detection modules are followed successively by PT5, PT6, PT8, PT9, PT1, PT2, PT3, PT4, PT7, PT10, PT11 and PT12, and multichannel input selector has 16 ports, number consecutively is 0,1,215 from top to bottom, has 16 data channel.In these 12 detection modules, detection module PT5, PT6, PT8 and PT9 have been connected 2 data channel simultaneously, such as, PT5 is connected with port one 2 with port 0 simultaneously.
In order to make the principle of signal pickup assembly image data provided by the present invention more clear, below in conjunction with the embodiment shown in Fig. 3, describe data acquisition in detail.
As mentioned above, multichannel input selector is to read in order the monitoring parameter that detection module obtains, and for example, in each collection period, according to the order from port 0～port one 5, reads the monitoring parameter that detection module obtains successively by data channel.Because detection module PT5, PT6, PT8 and PT9 have been connected 2 data channel simultaneously, at multichannel input selector, read in order in the process of the monitoring parameter that detection module obtains, be appreciated that, in each collection period, the monitoring parameter that detection module PT5, PT6, PT8 and PT9 obtain has all been read twice.
The unit interval that the multichannel input selector of take reads a monitoring parameter illustrates as 1.5ms as example, and in a collection period, multichannel input selector reads 16 Monitoring Data successively, and wherein, the Monitoring Data that has 4 detection modules to obtain is read 2 times.That is to say, concerning these 4 detection module PT5, PT6, PT8 and PT9, collected 2 times of its Monitoring Data obtaining in real time, only needs spended time 16*1.5ms.And in conventional art, because all detection modules only connect a data channel, if gather the Monitoring Data that 2 detection module PT5, PT6, PT8 and PT9 obtain in real time, need to carry out two collection period, and each collection period once reads 12 Monitoring Data, therefore need spended time 12*2*1.5ms.Therefore, signal pickup assembly provided by the invention, utilized the time still less to obtain more accurate data acquisition result, the even all detection modules of at least one detection module in several detection modules can be connected with at least two data channel of multichannel input selector simultaneously, monitoring parameter for some outbalance, corresponding detection module can also be connected with three even more data channel of multichannel input selector simultaneously, some monitoring parameter is obtained to more accurate collection result.
In one embodiment, several detection modules comprise 4 pump chamber pressure transducers.Pump chamber pressure transducer is for obtaining the pressure parameter of peritoneal dialysis.
Further, in one embodiment, 4 pump chamber pressure transducers are all connected with at least two data channel of multichannel input selector.Shown in Fig. 4, in a collection period of multichannel input selector, the pressure parameter of 4 pump chamber pressure transducer acquisitions all collected 2 times, with respect to conventional art, has improved the sample number of pressure parameter greatly, thereby has improved the degree of accuracy of calculating.
As shown in Figure 5, in one embodiment, provide a kind of signal acquisition method, the method comprises:
Step 502, several detection modules obtain the monitoring parameter of peritoneal dialysis, and in these several detection modules, at least one detection module is connected with at least two data channel of multichannel input selector simultaneously.
Step 504, multichannel input selector reads the monitoring parameter of several detection modules acquisitions that are connected with its data channel in order.
In the present embodiment, because at least one detection module in these several detection modules is connected with at least two data channel of multichannel input selector simultaneously, at multichannel input selector, read in order in the process of the monitoring parameter that several detection modules of being connected with its data channel obtain, multichannel input selector reads by least two data channel the monitoring parameter that at least twice same detection module obtains in a collection period.
In one embodiment, signal acquisition method also comprises: the monitoring parameter that analog-digital converter reads multichannel input selector is in order converted to digital signal.
Further, in one embodiment, signal acquisition method also comprises: processor calculates in sample calculation the meansigma methods of the monitoring parameter of each detection module acquisition in the cycle according to digital signal.
In one embodiment, several detection modules comprise 4 pump chamber pressure transducers, and these 4 pump chamber pressure transducers are all connected with at least two data channel of multichannel input selector.
Above-mentioned signal acquisition method, multichannel input selector is in a collection period, can read the monitoring parameter that at least twice same detection module obtains by least two data channel, make in a collection period, the monitoring parameter that same monitoring modular obtains can collected at least twice, expanded the sample number of data acquisition, the increase of sample number improves data computational accuracy.In addition, can adopt the existing data channel connection detection module of multichannel input selector, take full advantage of existing resource, can not increase extra cost.
The above embodiment has only expressed several embodiment of the present invention, and it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to the scope of the claims of the present invention.It should be pointed out that for the person of ordinary skill of the art, without departing from the inventive concept of the premise, can also make some distortion and improvement, these all belong to protection scope of the present invention.Therefore, the protection domain of patent of the present invention should be as the criterion with claims.
Claims (10)
1. a signal pickup assembly, comprise several detection modules and a multichannel input selector, described detection module is for obtaining the monitoring parameter of peritoneal dialysis, described multichannel input selector is for reading in order the described monitoring parameter of described several detection modules acquisitions that are connected with its data channel, it is characterized in that
In described several detection modules, at least one detection module is connected with at least two data channel of described multichannel input selector simultaneously.
2. signal pickup assembly according to claim 1, is characterized in that, also comprises:
Analog-digital converter, is converted to digital signal for the described monitoring parameter that described multichannel input selector is read in order.
3. signal pickup assembly according to claim 2, is characterized in that, also comprises:
Processor, for calculating in sample calculation the meansigma methods of the described monitoring parameter of each detection module acquisition in the cycle according to described digital signal.
4. signal pickup assembly according to claim 1, is characterized in that, described several detection modules comprise 4 pump chamber pressure transducers.
5. signal pickup assembly according to claim 4, is characterized in that, described 4 pump chamber pressure transducers are all connected with at least two data channel of described multichannel input selector.
6. according to the signal pickup assembly described in claim 1 to 5 any one, it is characterized in that, described multichannel input selector comprises 16 data channel, and described several detection modules are specially 12.
7. a signal acquisition method, is characterized in that, comprises the steps:
Several detection modules obtain the monitoring parameter of peritoneal dialysis, and in described several detection modules, at least one detection module is connected with at least two data channel of multichannel input selector simultaneously;
Described multichannel input selector reads the described monitoring parameter of described several detection modules acquisitions that are connected with its data channel in order.
8. signal acquisition method according to claim 7, is characterized in that, also comprises:
The described monitoring parameter that analog-digital converter reads described multichannel input selector is in order converted to digital signal.
9. signal acquisition method according to claim 6, is characterized in that, also comprises:
Processor calculates in sample calculation the meansigma methods of the described monitoring parameter of each detection module acquisition in the cycle according to described digital signal.
10. signal acquisition method according to claim 7, is characterized in that, described several detection modules comprise 4 pump chamber pressure transducers, and described 4 pump chamber pressure transducers are all connected with at least two data channel of described multichannel input selector.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410172397.2A CN103920202A (en) | 2014-04-25 | 2014-04-25 | Signal acquisition device and method |
| PCT/CN2015/077030 WO2015161770A1 (en) | 2014-04-25 | 2015-04-21 | Signal collection device and signal collection method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201410172397.2A CN103920202A (en) | 2014-04-25 | 2014-04-25 | Signal acquisition device and method |
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| CN103920202A true CN103920202A (en) | 2014-07-16 |
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| CN201410172397.2A Pending CN103920202A (en) | 2014-04-25 | 2014-04-25 | Signal acquisition device and method |
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| WO (1) | WO2015161770A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015161770A1 (en) * | 2014-04-25 | 2015-10-29 | 昆山韦睿医疗科技有限公司 | Signal collection device and signal collection method |
| CN109726704A (en) * | 2019-01-16 | 2019-05-07 | 北京集创北方科技股份有限公司 | Screen signal acquisition device and method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101278838A (en) * | 2008-04-29 | 2008-10-08 | 罗远明 | Multichannel respiratory physiological signal wireless monitoring system and method |
| CN101422357A (en) * | 2008-06-24 | 2009-05-06 | 浙江大学 | USB interface multi-path physiology information collection system |
| CN202236532U (en) * | 2011-10-12 | 2012-05-30 | 四川中测辐射科技有限公司 | Hemodialysis machine detector |
| WO2012155067A1 (en) * | 2011-05-11 | 2012-11-15 | Cardiocom, Llc | Dialysis treatment monitoring system |
| CN103513196A (en) * | 2012-06-19 | 2014-01-15 | 上海联影医疗科技有限公司 | Magnetic resonance system, magnetic resonance receiver and reception signal processing method and device of magnetic resonance receiver |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4151066B2 (en) * | 2002-08-28 | 2008-09-17 | 横河電機株式会社 | Data collection device |
| CN201233288Y (en) * | 2008-07-22 | 2009-05-06 | 深圳市英唐智能控制股份有限公司 | Multipath data acquisition system |
| CN102279020B (en) * | 2011-07-01 | 2012-11-14 | 中国计量学院 | Portable detector of blood clarifying device |
| CN103176411B (en) * | 2011-12-21 | 2017-10-24 | 北京普源精电科技有限公司 | A kind of control method of programmable multi-channel data acquisition device |
| CN103920202A (en) * | 2014-04-25 | 2014-07-16 | 昆山韦睿医疗科技有限公司 | Signal acquisition device and method |
-
2014
- 2014-04-25 CN CN201410172397.2A patent/CN103920202A/en active Pending
-
2015
- 2015-04-21 WO PCT/CN2015/077030 patent/WO2015161770A1/en active Application Filing
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101278838A (en) * | 2008-04-29 | 2008-10-08 | 罗远明 | Multichannel respiratory physiological signal wireless monitoring system and method |
| CN101422357A (en) * | 2008-06-24 | 2009-05-06 | 浙江大学 | USB interface multi-path physiology information collection system |
| WO2012155067A1 (en) * | 2011-05-11 | 2012-11-15 | Cardiocom, Llc | Dialysis treatment monitoring system |
| CN202236532U (en) * | 2011-10-12 | 2012-05-30 | 四川中测辐射科技有限公司 | Hemodialysis machine detector |
| CN103513196A (en) * | 2012-06-19 | 2014-01-15 | 上海联影医疗科技有限公司 | Magnetic resonance system, magnetic resonance receiver and reception signal processing method and device of magnetic resonance receiver |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015161770A1 (en) * | 2014-04-25 | 2015-10-29 | 昆山韦睿医疗科技有限公司 | Signal collection device and signal collection method |
| CN109726704A (en) * | 2019-01-16 | 2019-05-07 | 北京集创北方科技股份有限公司 | Screen signal acquisition device and method |
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| WO2015161770A1 (en) | 2015-10-29 |
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Application publication date: 20140716 |