CN203914911U - Overlength time-histories cardiac electric recording apparatus based on nand flash memory and SPI interface - Google Patents
Overlength time-histories cardiac electric recording apparatus based on nand flash memory and SPI interface Download PDFInfo
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- CN203914911U CN203914911U CN201420245278.0U CN201420245278U CN203914911U CN 203914911 U CN203914911 U CN 203914911U CN 201420245278 U CN201420245278 U CN 201420245278U CN 203914911 U CN203914911 U CN 203914911U
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- 230000000747 cardiac effect Effects 0.000 title claims abstract description 12
- 230000005540 biological transmission Effects 0.000 claims abstract description 19
- 230000003321 amplification Effects 0.000 claims abstract description 14
- 238000003199 nucleic acid amplification method Methods 0.000 claims abstract description 14
- 238000004891 communication Methods 0.000 claims abstract description 12
- 238000006243 chemical reaction Methods 0.000 claims description 6
- 241001269238 Data Species 0.000 abstract description 3
- 238000005265 energy consumption Methods 0.000 abstract description 3
- 238000001914 filtration Methods 0.000 description 4
- 201000010099 disease Diseases 0.000 description 3
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 3
- 230000002093 peripheral effect Effects 0.000 description 3
- 238000013500 data storage Methods 0.000 description 2
- 238000003745 diagnosis Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000006386 memory function Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 208000024172 Cardiovascular disease Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 208000019622 heart disease Diseases 0.000 description 1
- 238000007726 management method Methods 0.000 description 1
- 210000004165 myocardium Anatomy 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 208000024891 symptom Diseases 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
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Abstract
This utility model relates to a kind of overlength time-histories cardiac electric recording apparatus based on nand flash memory and SPI interface, by electro-cardiograph and data reception module, formed, described electro-cardiograph comprises electrocardioelectrode, electrocardiosignal amplification module, MCU control module, nand flash memory module and data transmission module, data reception module is external device, wherein, described electrocardioelectrode, electrocardiosignal amplification module, MCU control module and nand flash memory module are electrically connected in turn, data transmission module is connected with nand flash memory module with MCU control module respectively, data transmission module is provided with SPI interface, described nand flash memory module is usingd SPI interface as communication interface, data reception module is provided with data reader.There is feature low in energy consumption, integrated level is high, workable, can store 15 days above continuous electrocardiogram (ECG) datas.
Description
Technical field
This utility model relates to a kind of cardiac electric recording apparatus, particularly relates to a kind of overlength time-histories cardiac electric recording apparatus based on nand flash memory and SPI interface, for medical instruments field.
Background technology
Cardiovascular disease is a kind of comparatively general disease, is also one of main disease threatening human life.Electrocardiogram (Electrocardiogram, ECG) is the Main Basis of this type of disease of diagnosis.Electro-cardiograph is by non-volatile recording electrocardiosignal, make leaping of recall rate generating capacity that electrocardio changes, also can be disclosed in the electrocardio there will not be under supine position changes, and assist to analyze the relation between other electrocardio-activities variations such as these variations and heart rate, daily life, symptom, position etc., make Electrocardiographic clinical practice bring up to a new stage.There is diagnosis reliable simultaneously, convenient succinct, to advantages such as patient are harmless.
The disclosed a kind of sticking type recording system that records ultra-long time (more than 15 days) body surface ambulatory electrocardiogram of patent documentation CN102485171A, comprises the obtaining of electrocardiosignal, processing section and storage area.Storage area has adopted TF (Trans-flash Card, or be called Micro SD Card) card as the memory device of electrocardiogram (ECG) data.TF card is a kind of memory device that is usually used in portable consumer electronic product, if but be used in long-time electrocardiographic recording system, can cause following problem: reduce level of integrated system; Reduce Information Security, patient's electrocardiogram (ECG) data is lost or stolen probability increases; The probability that product damages improves.
The disclosed a kind of incidental heart disease detection system of patent documentation CN101879061A, comprises electrocardiogram acquisition amplifying circuit, microprocessor, data storage and data transmission device.Described memorizer is flash memorizer or SD card, and described microprocessor is connected by SPI interface with data storage.This patent only can provide data and the event of current 24 hours by cycle index, the electrocardiographic recording of longer time is not provided to satisfied solution.
Summary of the invention
The purpose of this utility model is the problem existing in order to solve prior art, provides a kind of and take nand flash memory as memory device, the overlength time-histories cardiac electric recording apparatus based on nand flash memory and SPI interface that SPI interface is main communication interfaces.
Above-mentioned purpose of the present utility model is realized by following technical scheme: a kind of overlength time-histories cardiac electric recording apparatus based on nand flash memory and SPI interface, by electro-cardiograph and data reception module, formed, described electro-cardiograph comprises electrocardioelectrode, electrocardiosignal amplification module, MCU control module, nand flash memory module and data transmission module, data reception module is external device, it is characterized in that: described electrocardioelectrode, electrocardiosignal amplification module, MCU control module and nand flash memory module are electrically connected in turn, data transmission module is connected with nand flash memory module with MCU control module respectively, data transmission module is provided with SPI interface, described nand flash memory module is usingd SPI interface as communication interface, data reception module is provided with data reader.This utility model structure is light and handy, adopts nand flash memory module can store 15 days above continuous electrocardiogram (ECG) datas.
On the basis of such scheme, described data reader is furnished with the interface conversion chip that USB turns SPI, between data reader and electro-cardiograph, by SPI structure, communicates by letter, and between data reader and computer, by USB interface, communicates by letter.
On the basis of such scheme, described nand flash memory module is the nand flash memory of capacity 512MByte.
Compared with prior art, the utlity model has following beneficial effect:
1, low in energy consumption.In this utility model, adopt low-power consumption nand flash memory as memory device, compare with TF card storage scheme, on system power dissipation, there is obvious advantage.
2, integrated level is high.In this utility model, adopt nand flash memory as memory device, can in a circuit board, realize electrocardiogram acquisition and memory function, by contrast, TF card storage scheme need to complete memory function by the TF card outside plate.
3, strong operability.This utility model utilizes data reception module just can complete data and reads, and without carrying out card taking and Card Reader operation, can effectively prevent loss or mix up storage card, convenient operation and management.
Accompanying drawing explanation
Fig. 1 is module diagram of the present utility model;
Number in the figure explanation:
1---electro-cardiograph; 11---electrocardioelectrode;
12---electrocardiosignal amplification module; 13---MCU control module;
14---nand flash memory module; 15---data transmission module;
2---data reception module; 21---data reader.
The specific embodiment
In order to make the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with accompanying drawing, embodiment of the present utility model is elaborated, be to be noted that described embodiment is only intended to be convenient to understanding of the present utility model, and it is not played to any restriction effect.
Please refer to Fig. 1 is module diagram of the present utility model:
As shown in Figure 1, a kind of overlength time-histories cardiac electric recording apparatus based on nand flash memory and SPI interface, by electro-cardiograph 1 and data reception module 2, formed, described electro-cardiograph 1 comprises electrocardioelectrode 11, electrocardiosignal amplification module 12, MCU control module 13, nand flash memory module 14 and data transmission module 15, data reception module 2 is external device, it is characterized in that: described electrocardioelectrode 11, electrocardiosignal amplification module 12, MCU control module 13 and nand flash memory module 14 are electrically connected in turn, data transmission module 15 is connected with nand flash memory module 14 with MCU control module 13 respectively, data transmission module 15 is provided with SPI interface, described nand flash memory module 14 is usingd SPI interface as communication interface, data reception module 2 is provided with data reader 21.
On the basis of such scheme, described data reader 21 is furnished with the interface conversion chip that USB turns SPI, between data reader 21 and electro-cardiograph 1, by SPI interface communication, between data reader and computer, by USB interface, communicates by letter.
On the basis of such scheme, described nand flash memory module 14 is the nand flash memory of capacity 512MByte.
Electro-cardiograph 1 is for gathering, process, store and send electrocardiogram (ECG) data; Data reception module 2 is connected with electro-cardiograph 1, for reading the electrocardiogram (ECG) data of electro-cardiograph 1, and sends to computer; Use the software storage in computer, the electrocardiogram (ECG) data that processing receives.
This utility model adopts the metering system that singly leads, and electro-cardiograph 1 contacts with body surface by electrocardioelectrode 11, and the weak biological electricity that cardiac muscle occurs to produce in ignition process can be sent to electrocardiosignal amplification module 12 by electrocardioelectrode 11.
The electrocardiosignal that 12 pairs of electrocardioelectrodes of electrocardiosignal amplification module 11 transmit is carried out operation amplifier and filtering.After the amplification of 1000 times, faint electrocardiosignal can be amplified to the amplitude that is applicable to AD conversion; After the bandpass filtering of 0.5-40Hz, effectively electrocardiosignal is retained, and noise will be by filtering.
Built-in 12 the AD modular converters of MCU control module 13 and SPI interface.Electrocardiosignal after utilizing built-in AD modular converter to the amplification filtering of electrocardiosignal amplification module 12 transmission is carried out AD conversion, obtains digitized electrocardiogram (ECG) data.After the processing such as 13 pairs of digitized electrocardiogram (ECG) datas of MCU control module compress, by SPI interface, be sent to nand flash memory module 14.
Nand flash memory module 14 is usingd SPI interface as communication interface, and capacity is 512MByte.Nand flash memory, according to the instruction of MCU control module 13, is stored electrocardiogram (ECG) data to the address of appointment, or according to the instruction of data transmission module 15, is read after the electrocardiogram (ECG) data in assigned address, sends data reader 21 to.
Nand flash memory, Nand-flash memorizer, is a kind of of Flash internal memory, it is inner adopts non-linear macroelement pattern, for the realization of solid-state large-capacity internal memory provides cheap effective solution.The advantages such as it is larger that nand flash memory has capacity, and rewriting speed is fast, are applicable to the storage of mass data.Based on These characteristics, nand flash memory has very high matching degree as the memory device of long-time electrocardiographic recording system.The product size of considering sticking type electrocardiographic recording system requirements is very little, has adopted the serial low-power consumption nand flash memory chip that SPI interface is communication interface in this utility model.
SPI (Serial Peripheral Interface, Serial Peripheral Interface (SPI)) bus system is a kind of synchronous serial Peripheral Interface, be a kind of conventional Industry Standard Architecture, it can make main frame and various ancillary equipment communicate with swap data with serial mode.SPI interface is full-duplex communication mode at a high speed, and Principle of Communication is simple and easy to use, and the layout that is easy to simple in structure, can save space for board design.
Data transmission module 15, for the connection status of monitor data reader 21.When data reader 21 is not connected to electro-cardiograph 1, data transmission module 15 can be exported high level signal to MCU control module 13, and system is normally worked, and gathers and storage electrocardiogram (ECG) data; When data reader 21 is connected to electro-cardiograph 1, data transmission module 15 meeting output low level signals are to MCU control module 13, and system, in standby mode, is given data reader 21 the access limit of nand flash memory module 14.
Data reader 21 is for reading the accessory of the electrocardiogram (ECG) data of electro-cardiograph 1 storage.Its core devices is the interface conversion chip that a USB turns SPI.Between data reader 21 and electro-cardiograph 1, by SPI interface communication, between data reader and computer, by USB interface, communicate by letter.
That the overlength time-histories cardiac electric recording apparatus based on nand flash memory and SPI interface in the present embodiment has is low in energy consumption, integrated level is high, the feature such as easy and simple to handle, can store the continuous electrocardiogram (ECG) data of 19 days; Can read easily and preserve the electrocardiogram (ECG) data in electro-cardiograph 1 by small-sized data reader 21.
Claims (3)
1. the overlength time-histories cardiac electric recording apparatus based on nand flash memory and SPI interface, by electro-cardiograph (1) and data reception module (2), formed, described electro-cardiograph (1) comprises electrocardioelectrode (11), electrocardiosignal amplification module (12), MCU control module (13), nand flash memory module (14) and data transmission module (15), data reception module (2) is external device, it is characterized in that: described electrocardioelectrode (11), electrocardiosignal amplification module (12), MCU control module (13) and nand flash memory module (14) are electrically connected in turn, data transmission module (15) is connected with nand flash memory module (14) with MCU control module (13) respectively, data transmission module (15) is provided with SPI interface, described nand flash memory module (14) is usingd SPI interface as communication interface, data reception module (2) is provided with data reader (21).
2. the overlength time-histories cardiac electric recording apparatus based on nand flash memory and SPI interface according to claim 1, it is characterized in that: described data reader (21) is furnished with the interface conversion chip that USB turns SPI, between data reader (21) and electro-cardiograph (1), by SPI interface communication, between data reader (21) and computer, by USB interface, communicate by letter.
3. the overlength time-histories cardiac electric recording apparatus based on nand flash memory and SPI interface according to claim 1, is characterized in that, described nand flash memory module (14) is the nand flash memory of capacity 512MByte.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420245278.0U CN203914911U (en) | 2013-10-11 | 2014-05-14 | Overlength time-histories cardiac electric recording apparatus based on nand flash memory and SPI interface |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201320626714.4 | 2013-10-11 | ||
| CN201320626714 | 2013-10-11 | ||
| CN201420245278.0U CN203914911U (en) | 2013-10-11 | 2014-05-14 | Overlength time-histories cardiac electric recording apparatus based on nand flash memory and SPI interface |
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| CN203914911U true CN203914911U (en) | 2014-11-05 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106539575A (en) * | 2016-10-26 | 2017-03-29 | 西安交大辰方科技有限公司 | A kind of secure device and method of free drive ambulatory blood pressure logger measurement data |
-
2014
- 2014-05-14 CN CN201420245278.0U patent/CN203914911U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106539575A (en) * | 2016-10-26 | 2017-03-29 | 西安交大辰方科技有限公司 | A kind of secure device and method of free drive ambulatory blood pressure logger measurement data |
| CN106539575B (en) * | 2016-10-26 | 2019-05-03 | 西安交大辰方科技有限公司 | A kind of secure device and method of free drive ambulatory blood pressure logger measurement data |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: ENSENSE BIOMEDICAL TECHNOLOGIES (SHANGHAI) CO.,LTD. Assignor: JIESHENG BIOTECHNOLOGY (SHANGHAI) Co.,Ltd. Contract record no.: 2015310000086 Denomination of utility model: Super-long-time-history electrocardio recording device based on NAND flash memory and SPI interface Granted publication date: 20141105 License type: Exclusive License Record date: 20150804 |
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| LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20190411 Address after: Room 103, Building 3, No. 3279 Sanlu Highway, Minhang District, Shanghai 201112 Patentee after: ENSENSE BIOMEDICAL TECHNOLOGIES (SHANGHAI) CO.,LTD. Address before: Room 105, Building 3, No. 3279 Sanlu Highway, Minhang District, Shanghai 201112 Patentee before: JIESHENG BIOTECHNOLOGY (SHANGHAI) Co.,Ltd. |
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| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20141105 |