Method and device for calculating respiratory rate based on electrocardiosignals
A technology of ECG signal and respiratory rate, which is applied in the evaluation of respiratory organs, medical science, sensors, etc., and can solve problems such as inaccurate calculation of respiratory rate
Active Publication Date: 2017-03-22
GUANGZHOU SHIYUAN ELECTRONICS CO LTD
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Problems solved by technology
[0005] In view of the above situation, it is necessary to solve the problem of inaccurate calculation of respiration rate in the prior art, and provide a method and device for calculating respiration rate based on ECG signals
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[0060] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary only for explaining the present invention and should not be construed as limiting the present invention.
[0061] These and other aspects of embodiments of the invention will become apparent with reference to the following description and drawings. In these descriptions and drawings, some specific implementations of the embodiments of the present invention are specifically disclosed to represent some ways of implementing the principles of the embodiments of the present invention, but it should be understood that the scope of the embodiments of the present invention is not limited by this limit. On the contrary, the embodiments of the present...
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The invention provides a method and device for calculating the respiratory rate based on electrocardiosignals. The method comprises the steps that the electrocardiosignals are obtained and preprocessed, and parameter signals are extracted from the electrocardiosignals and comprise the training parameter signal and the testing parameter signal; the training parameter signal is processed through a self-adapting filter to obtain an estimated respiratory signal; the difference value between the estimated respiratory signal and a respiratory signal obtained through an impedance method is calculated, and parameters of the self-adapting filter are adjusted so that the difference value can be within the preset range; and the self-adapting filter obtained after the parameters are adjusted is used for processing the testing parameter signal to obtain a final respiratory signal, and the respiratory rate is calculated. According to the method and device, by means of self-adapting adjustment of the self-adapting filter, a self-adapting filter model meeting the purity requirement of the respiratory signal is obtained, the respiratory frequency signal on the electrocardiosignals is demodulated out through the adjusted self-adapting filter, and the respiratory behaviors of a subject are monitored.
Description
technical field [0001] The invention relates to the field of electrocardiographic signal processing, in particular to a method and device for calculating respiration rate based on electrocardiographic signals. Background technique [0002] At present, the methods used to calculate the respiratory rate mainly include: impedance volume method, which uses a high-frequency constant current source to measure changes in chest impedance to extract respiratory information; sensor method, which uses temperature, pressure, humidity and airflow sensors as nostril sensors; capacitance method, when breathing The capacitance value will change accordingly; the breathing sound method, which recognizes breathing by picking up the breathing sound; the ultrasonic method, which uses ultrasonic waves to generate Doppler phenomenon, and detects the respiratory frequency. The use of these methods not only requires additional signal acquisition components, but also is affected by movement and the e...
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IPC IPC(8): A61B5/08A61B5/0402A61B5/00
CPCA61B5/0816A61B5/7203A61B5/7235A61B5/725A61B5/316A61B5/318
Inventor 胡静
Owner GUANGZHOU SHIYUAN ELECTRONICS CO LTD