Embedded ECG signal acquisition device
A technology of electrocardiographic signal and acquisition device, which is applied in medical science, sensors, diagnostic recording/measurement, etc., can solve the problem of low acquisition accuracy, achieve the effects of improving acquisition accuracy, wide application range, and improving noise isolation effect
Inactive Publication Date: 2011-12-21
DALIAN NATIONALITIES UNIVERSITY
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[0005] The purpose of the embodiments of the present invention is to provide an embedded ECG signal acquisition device to solve the problem of low acquisition accuracy of current portable ECG signal acquisition devices
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[0015] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.
[0016] Such as figure 1 As shown, the embedded ECG signal acquisition device provided by the present invention includes: an ECG lead 1 placed on the surface of the human body to collect the ECG signal of the human body; connected to the ECG lead 1, the human ECG signal is filtered and amplified and then output The electrocardiographic signal amplifying section 2; the signal processing section 3 connected with the electrocardiographic signal amplifying section 2, performing analog-to-digital conversion, software filtering and analysis processing on the human body electrocardiographic signal output b...
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The invention discloses an embedded electrocardiogram signal acquisition device, comprising: an electrocardiogram lead placed on the surface of a human body to collect human body electrocardiogram signals; an electrocardiogram signal amplifying part connected to the electrocardiogram lead; The operational amplifier TLV2254 is the processing core; it is connected to the signal processing part of the electrocardiographic signal amplifying part. Since the device uses the low-voltage and low-power operational amplifier TLV2254 as the processing core, compared with the current CMOS amplifier, the noise isolation effect is significantly improved. Its high input impedance and low noise are very suitable for small signal conditioning of high impedance sources, thus The acquisition accuracy of the device is improved; in addition, the operational amplifier TLV2254 requires low power, and its maximum input current consumption is only 34μA, with high amplification accuracy and small temperature drift, so it can work in occasions with a relatively low voltage range and can be applied Battery driven, wide range of applications.
Description
technical field [0001] The invention belongs to the technical field of electrocardiographic signal acquisition, in particular to an embedded electrocardiographic signal acquisition device. Background technique [0002] In recent years, with the improvement of people's living standards and the reduction of physical labor, people's physical fitness has declined to some extent, and the incidence of various heart diseases has increased year by year. The increase in resources cannot meet the gap in people's heart disease prevention and treatment. [0003] As people pay more and more attention to their own heart health, it is necessary for communities, rural areas or families to provide a multi-functional, portable, easy-to-operate, stable performance and low-cost ECG signal acquisition device to help people prevent or treat certain diseases. some heart disease. [0004] Since the ECG signal collected from the human body surface is generally weak, only at the millivolt level, it...
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Inventor 李敏吴宝春杨亚宁张维维
Owner DALIAN NATIONALITIES UNIVERSITY