92 results about "High heart rate" patented technology

Accurate occurrences of pulsation per unit time, that is, a heart rate is measured with a burden on a subject person being reduced to be very small and without being susceptible to body vibrations accompanying exercise. A heart rate monitor is produced, in which a light-emitting element 11 and a light-receiving element 12 are fitted to a head of a human body, light from the light-emitting element 11 is reflected at or transmitted through a subcutaneous artery 4 and / or blood running in the subcutaneous artery, the reflected or transmitted light is detected at the light-receiving element 12, and by using a CPU 14, the pulsation of the subcutaneous artery 4 and / or a change in bloodstream running in the subcutaneous artery 4 is measured from a change in intensity of the light detected at the light-receiving element 12, a pulse rate of the change in the bloodstream per unit time is calculated from this measured value, and the calculated pulse rate of the change in the bloodstream per unit time is regarded as a heart rate.

An integrated circuit device includes an insulating body provided with a number of electrically conductive leads and having a surface provided with a red LED aperture, an IR LED aperture and a photodetector aperture. The insulating body also includes an optical isolator optically separating the photodetector aperture from the red LED aperture and the IR LED aperture. A red LED is aligned with the red LED aperture, an IR LED is aligned with the IR LED aperture, and a photodetector is aligned with the photodetector aperture.

A method and system of supplying rodents, such as mice, to medical researchers pre-installs and / or embeds physiologic sensors onto or within the rodents prior to selling the modified rodents to the researchers. The specialty skills, such as small animal surgical and anesthesia skills and sensor placement and testing, are centralized in one organization rather than being spread about a collection of researchers. The subjects with preinstalled, pre-tested hardware, are sold to the researcher as needed. Communication hardware and software will be supplied for the user to convert their desktop computer into a wireless monitoring station. Additionally an external pulse oximeter for small rodents, such as mice, provides measurements on a hand or foot of the rodent with a sensor configured to avoid shunting around the rodent appendage, and configured for high heart rates (200-900 beats per minutes) of the subjects.

The invention provides a heart rate detection method and system based on PPG signals, and relates to the medical communication technical field; the method comprises the following steps: using a PPG sensor to output a corresponding heart rate waveform according to heart rate changes of a tested human body; carrying out heart rate waveform Fourier transform so as to obtain a heart rate frequency spectrum corresponding to the heart rate waveform; setting three peaks in the heart rate frequency spectrum heart rate frequency range, comparing frequencies corresponding to the three peaks with the previous heart rate, and taking the heart rate peak with the frequency most close to the previous heart rate as the present heart rate peak; using the frequency corresponding to the present heart rate peak as the present heart rate of the tested human body, and outputting same. The method and system can solve the problems that an existing method cannot eliminate the continuous motion interferences; even under long time continuous motion interferences, the method and system can calculate the accurate heart rate.

The invention relates to an electric running machine provided with an exercise effect evaluation system, belonging to the fitness equipment. The electric running machine provided with the exercise effect evaluation system adopts such three speed control modes as the obesity degree measure and calculation mode, the body mass index (BMI) value measure and calculation mode and the heart rate zone measure and calculation mode. The actual height, weight, name and age of the runner can be inputted by the runner by using the press keys arranged on an instrument panel. The standard weight, obesity degree, weight range, BMI and maximum heart rate of the runner can be measured and calculated according to the calculation formula in the exercise effect evaluation system by using the exercise effect evaluation system. The conclusion of the BMI can be calculated and displayed by a display window to the operator, and exercise formulas P1-P6 which correspond to the electric running machine can be automatically selected by a scientific running exercise guidance system. The electric running machine provided with the exercise effect evaluation system can achieve the scientific running exercise and more effectively improve the running exercise effect.

The invention discloses an R wave rapid detection algorithm adaptive to electrocardiogram waveform pathological change. The method, by summarizing the different characteristics of various pathological electrocardiograms such as arrhythmia, reverse wave, W wave, tall peaked P wave, tall peaked T wave and the like on an electrocardiogram signal first-order derivative and a first-order derivative square signal, can overcome the limitation of a conventional difference threshold algorithm on setting a plurality of thresholds and avoid the influence on self-adaption threshold detection due to relatively high heart rate variability among different patients through such strategies as low-threshold return-to-zero treatment, R wave classification detection as well as threshold judgment and updating for a non-classical R waveform and the like. According to the method, the algorithm is simple and easy to implement, and simultaneously the algorithm is capable of achieving rapid and accurate R wave detection on the various pathological electrocardiograms; and the algorithm is especially suitable for real-time QRS wave detection on electrocardiogram signals in mobile portable equipment. The algorithm disclosed by the invention, inspected by virtue of an MIT-BIH database, is 99.71% in sensitivity and is 99.73% in positive predictive value.

Monitoring apparatus (4) for monitoring a user's heart, the apparatus comprising several sensors (14, 16) for measuring changes in an electrical parameter of a user's arm (20), from which changes an electrocardiogram, heart rate and / or heart rate variation of the user's heart are determinable. The apparatus further comprises a data processor (28) for determining the electrocardiogram, the heart rate and / or heart rate variation from the changes the electrical parameter; and an output device (32) for making knowable to the user the electrocardiogram, heart rate and / or heart rate variation. A basic idea of the present invention is, to use only a single wristband, particularly a wrist watch, having all the means to monitor the user's heart, without using for example a chest band. Herein, the single wristband is at least provided with the at least one sensor and particularly also comprises the data processor, and more particularly also comprises the output device.

A real-time electrocardiosignal monitoring and processing method comprises the following steps of (1) acquiring electrocardiosignals, and filtering the electrocardiosignals; (2) calculating the real-time heart rate every second; (3) diagnosing real-time arrhythmia every second; (4) detecting heartbeat information every second, wherein the heartbeat information includes the heartbeat number, the location, the heartbeat type and the RR interval; (5) After recording, keeping statistics of the average heart rate, the highest heart rate, the lowest heart rate, the proportion of over-high heart rate, the proportion of pretty high heart rate, the proportion of normal heart rate, the proportion of pretty low heart rate, and the proportion of over-low heart rate. By the adoption of the method, signal filtration, real-time heart rate calculation, real-time arrhythmia diagnosis and the like can be conducted during electrocardiosignals acquisition, and monitoring data can be transmitted to a doctor remotely and wirelessly, so as to facilitate timely diagnosis and treatment of diseases by doctors.

The invention discloses a personal health information monitoring method,a monitoring system and a monitoring terminal based on positional information. The method comprises the following steps: S100, acquiring the positional information and health information of a person in real time, wherein the health information includes heart rate information and pulse rate information; and S200, judging whether the health information becomes abnormal or not, if so, searching a medical institution nearby according to the positional information and transmitting the abnormal information. The personal health information monitoring method based on the positional information provided by the invention, through real-time monitoring by virtue of an intelligent wearable device and by monitoring a human motion state, can greatly improve the accuracy of heart rate or pulse rate monitoring. Meanwhile, the purpose of monitoring vital signs can be actually achieved on the basis of the monitoring result of the wearable monitoring terminal, since a bridge is constructed between users and the medical institution by virtue of a network service platform.

The invention discloses a heart rate detection method. The heart rate detection method comprises the following steps: acquiring motion data collected by motion sensors in wearable equipment, wherein the motion sensors comprise an acceleration sensor and / or a geomagnetic sensor; acquiring a motion state corresponding to the motion data; processing heart rate data collected by a heart rate sensor inthe wearable equipment according to the motion state to obtain a heart rate value; and outputting the heart rate value. The invention further discloses the wearable equipment and a computer storage medium. A motion state of a user is determined by collecting motion data of the user, the heart rate of the user is calculated according to a processing mode corresponding to the motion state, the influence of different motion states of the user on the heart rate detection is reduced, and the accuracy of the heart rate detection is improved.

The invention discloses an optical sensing device for a heart rate and blood pressure monitor, comprising a light-emitting device, an optical lens, a photoelectric receiving tube and a light-shielding black frame, wherein the optical lens includes a light-gathering window above the light-emitting device and a photoelectric The light-transmitting window above the receiving tube; the light-shielding black frame is located above the light-emitting device and is set between the light-gathering window and the light-transmitting window; the light-gathering window adopts a Fresnel structure, which includes at least one transmission surface and one or more teeth composition of reflective surfaces. Due to the use of the oblique-axis Fresnel lens, it can achieve the purpose of concentrating and turning the light path with a relatively thin thickness. It concentrates the LED light and converges it to the measured point on the skin in an oblique direction, passing through the measured point. After being reflected by the blood vessels in the measuring point, it is received by the photoelectric receiving tube through the transparent window, thereby generating pulse and blood signals. The optical sensing device has the characteristics of strong signal, low noise, high sensitivity, accuracy, good reliability and the like.

The embodiment of the invention relates to the detection technique, and particularly relates to a heart rate detection method and a heart rate detection system. The heart rate detection method comprises the following steps of detecting a current pressure value, judging effective contact between the detection system and the body surface skin through the pressure value, and calculating to form a heart rate signal output in the state of effective contact of the detection system and the body surface skin. On one hand, when the ineffective contact between the detection system and the body surface skin is judged, an alarm is given to remind a user that the current acquisition is ineffective, the detection system needs to be correspondingly regulated to acquire the effective acquisition; and on the other hand, calculation is implemented according to the pressure value, an acquired heart rate value and a standard pressure value to form the heart rate signal output, the condition of inaccuracy of the outputted heart rate signal, caused by the relatively low pressure formed by the detection system on the body surface skin, is avoided, and the method aims at improving the detection accuracy of the heart rate signal.

The invention discloses a rowing machine-based cardiorespiratory endurance testing method, and is applicable to cardiorespiratory exercise capacity testing in nationwide fitness programs. More specifically, a testing system consisting of a rowing machine body, a testing analysis platform, a pull data acqusition module and a heart rate acqusition module is utilized to guide a subject to finish two groups of stable continuous pull actions with same pull resistance and pull frequency and different pull powers in a set time so as to monitor heart rate response of the subject in real time, establish a linear model between the stage movement heart rate and the pull power and calculate the pull power corresponding to the highest heart rate of the subject to serve as an evaluation index of the cardiorespiratory endurance. Whole-course real-time guide is realized by using sound, light and video signals, the exercise limit is not required to be reached, the method is suitable for a broader crowd of people and is safer, the testing result can objectively reflect the weakness of the cardiorespiratory endurance, a personalized and differentiated fitness plan can be made for the subjects, the exercise effect is improved and scientific guidance is provided.

The invention discloses a heart rate monitoring method based on microwave sensing. A heartbeat component signal is enhanced through differential, and is processed through a band-pass filter; by utilizing the amplified heartbeat component signal, specially harmonic components of heartbeating at the second time and the third time; and through combination of self-correlation periodic analysis method,the problems of harmonic interference of breathing and covering are solved, high-reliability and high-accuracy heart rate monitoring can be realized, the tracking sensitivity is high and the calculation is more convenient.

The invention discloses a narrow-beam millimeter-wave human heartbeat / respiratory sign monitoring device with controllable irradiation direction. The device comprises a millimeter-wave radar, a millimeter-wave lens antenna, an AD acquisition card, an intelligent beam control mechanism and upper computer software, a specially-made narrow-beam low-sidelobe small-size millimeter wave antenna lens is additionally arranged at the front end of a radar receiving and transmitting antenna, so that the signal-to-noise ratio of a radar receiver is improved. The direction of a main beam of a radar device is changed through a beam control mechanism, and the maximum position of the monitored human body surface heartbeat amplitude is automatically searched for according to the amplitude characteristics obtained after phase demodulation of intermediate frequency signals of the radar receiver. The device reduces the influence of respiratory harmonics and clutters on heart rate discrimination, improves the heart rate measurement precision, is suitable for single-person or multi-person monitoring, achieves the precise measurement of respiratory and heartbeat frequencies under the condition of no contact with a human body, can recognize the abnormal physiological states of arrhythmia, respiratory failure and the like, improves the accuracy of heart rate measurement, has an application prospect in the aspect of clinical dynamic monitoring of critical patients with infectious diseases and burns, and is also used for vital sign monitoring in daily life.

The invention discloses a system for monitoring a heart rate of a fetus in a mother body. The system comprises a signal acquisition module, a signal preprocessing module, a signal quality evaluation module, a maternal ECG extraction module, a maternal heart rate detection module, a maternal ECG suppression module, a fetal ECG extraction module, a fetal heart rate detection module and a result output module. The signal acquisition module collects electrical signals of the abdomen of a pregnant woman, the signal preprocessing module removes power frequency, baseline drift and myoelectric interference, the signal quality evaluation module eliminates low-quality signals, the maternal ECG extraction module and the maternal heart rate detection module calculate the maternal heart rate, the maternal ECG suppression module, the fetal ECG extraction module and the fetal heart rate detection module calculate the fetal heart rate, and the result output module simultaneously outputs the maternal heart rate and the fetal heart rate. The system eliminates the low-quality signals in the monitoring process and fully suppresses noise signals before detection of the fetal heart rate, can accuratelyextract the fetal heart rate with fewer ECG leads, and meets the need of clinical long-term fetal heart monitoring.

The invention relates to a heart rate information acquisition method and device, computer equipment and a storage medium. The method comprises the following steps: dividing a region of interest of each frame of image in a plurality of frames of images according to a preset division mode to obtain a plurality of sub-frame image sequences; acquiring a sub-pulse wave signal of each sub-frame image sequence; according to the sub pulse wave signals, determining weight sequence information of the corresponding divided areas; obtaining pulse wave signals of the plurality of frame images according tothe weight sequence information and the sub pulse wave signals; and determining a heart rate estimated value according to the frequency corresponding to the maximum power spectral density of the pulsewave signal in the preset time period. By adopting the method, the accuracy of heart rate estimation can be improved.

A heart rate monitor system having at least one primary heart rate sensor (110) for measuring or determining a heart rate of a user and for outputting an output signal (HR) is provided. The output signal (HR) is based at least on measured heart beats and / or artifacts. The heart rate monitor system also comprises a model unit (132) for estimating or predicting a heart rate (HRM) of a user based on a model stored in the model unit (132) and the information received from at least one secondary sensor (120) measuring at least one physiological factor influencing heart rate of a user. The heart rate monitor system furthermore comprises a processing unit (131) for correlating the output signal (HR) received from the primary sensor (110) with the estimated or predicted hear rate (HRM) received from the model unit (132) to differentiate the measured heart beats from the artifacts.

The invention relates to a test device and a test method for a heart rate module. The test device comprises a substrate used for carrying the heart rate module, a support structure arranged on the substrate, a PCB, an upper computer in communication connection with the heart rate module via the PCB, an MCU module in communication connection with the upper computer, an optical receiver used for receiving a light intensity signal emitted by an LED in the heart rate module, and a laser transmitter used for transmitting the light intensity signal to a heart rate receiving end of the heart rate module, wherein the optical receiver and the laser transmitter are corresponding to the heart rate module and arranged on the support structure; and both the optical receiver and the laser transmitter are in communication connection with the MCU module. The device and the method are used for measuring the light intensity signals transmitted and received by the LED in the heart rate module, and detecting whether the heart rate module is normal, so that reliability and accuracy of the heart rate module in use are improved, and user experience is enhanced.

The invention discloses a method for measuring the heart rate. The method comprises the following steps of: (1) acquiring heartbeat waveform data and reading the heartbeat waveform data at a first time interval, wherein at least one heartbeat occurs in the first time interval; (b) computing a threshold value according to heartbeat waveform data in at least two latest periods; (c) acquiring heartbeat waveform data in a next period, judging an R wave in a QRS wave group according to the threshold value, and recording the times of the R wave in the period; and (d), judging whether preset detection time is reached, if not, performing the step (b), and if so, counting the R wave times in the preset detection time for serving as heart rate output. The invention further provides a corresponding heart rate measuring system. In the method and the system, comprehensive judgment is made by using segmented self-learning, differences and amplitudes, so that the problems of poor anti-jamming capability, insufficient importance attached to the experience of doctors, computing complexity and / or poor instantaneity and the like are solved, recognition of the R wave can be realized, and the heart rate is further measured accurately.

The invention provides a non-contact heart rate monitoring method and system, and relates to the technical field of heart rate monitoring. The method comprises the following steps of: monitoring a face from a face video through face feature point positioning and a face monitoring algorithm, and determining two ROI regions; obtaining a time domain signal of the nth pixel in the RGB color gamut space based on the face video corresponding to the ROI, and obtaining a space-time representation block of the original face video based on the time domain signal; obtaining a frequency domain signal by using fast Fourier transform and a band-pass filter; obtaining a spatial frequency representation block of the original face video according to the frequency domain signal; and extracting features andreducing dimensions of the space-time representation block and the space frequency representation block through a multi-channel feature fusion heart rate monitoring network, and calculating a heart rate value. The technical problem that the heart rate cannot be calculated by fully utilizing the data except the frequency value corresponding to the frequency domain response maximum value in the timedomain signal and the frequency domain signal in the prior art is solved, and the accuracy of heart rate estimation can be effectively improved.

The invention discloses an intelligent sports bracelet capable of measuring the heart rate and relates to the technical field of intelligent bracelets. The intelligent sports bracelet comprises a bracelet main body, one end of the bracelet main body is connected with a wrist strap A, the other end of the bracelet main body is connected with a wrist strap B, the wrist strap A and the wrist strap B are detachably connected with the bracelet main body, each wrist strap is provided with a magnetic button, and the wrist strap A is provided with a plurality of magnetic holes matched with the magnetic button. A pulse detection sensor is positioned on the inner side of the bracelet main body, and a flexible display screen is arranged on the outer side of the bracelet main body. A processor, a comparator, a wave converter, a clock module, a warner and a pedometer are arranged in an inner cavity of the bracelet main body. The intelligent sports bracelet has the advantages of being simple in structure and convenient to dismantle, giving an alarm against abnormities and monitoring the heart rate in all weather.

The invention provides a method for monitoring the heart rate and the heart rate variability. The method includes the following steps of obtaining heartbeat signals with the frequency range of 10-80 Hz through a sensor, calculating the power of the obtained heartbeat signals, conducting at least one time of filtering on the power-calculated signals, and conducting peak point recognition on the filtered signals, wherein the peak points are heartbeat moment points. The method has the advantages that the human body heartbeat signals are extracted through the sensor, heart sound frequency band signals of the heartbeat signals are extracted, the more accurate and reliable heartbeat moment points are obtained, and therefore the heart rate and the heart rate variability are calculated.

The invention discloses a massage chair with an external counterpulsation function, which does not influence the normal massage use of the massage chair and is convenient to realize household and community popularization. Massage can be carried out after counterpulsation is finished, so that the conditions of numbness, discomfort and the like of legs after counterpulsation can be overcome or reduced, and a better blood circulation effect can be achieved; besides, for a few patients with high heart rate and high blood pressure, the minority of patients can be massaged and relaxed firstly, and external counterpulsation is performed after the blood pressure is stable and the heart rate is reduced; when counterpulsation is carried out, the waist massage function of the massage chair can be selectively started, and in combination with blood circulation during counterpulsation, waist and back muscle groups and spines can be better massaged and subjected to health care. The combination of thetwo is not only the superposition of functions, but also has a better complementary effect.

A physical arousal degree comprehensive quantifying method based on heart rate index includes heart rate collecting, calculation of heart rate long-range fluctuation coefficient, calculation of heart rate local Hurst index and calculation of heat rate mean value. High heart rate mean value can purely come from physical arousal caused by body movement. The small local Hurst index value range generally comes from stress physical arousal. The heart rate long-range fluctuation coefficient can stably balance the physical arousal degree in the normal range (smaller than 90 / min). By means of fusion of the above three indexes, the physical arousal comprehensive quantifying index allowing continuous valuing between peace to high arousal is acquired.

The invention discloses a heart rate module and electronic equipment collecting heart rates. The heart rate module includes a substrate, and a first light wave transmitting unit, a second light wave transmitting unit, a first optical sensor chip and a second optical sensor chip which are arranged on the substrate; the substrate is also provided with isolation grating walls for isolating the firstlight wave transmitting unit, the second light wave transmitting unit, the first optical sensor chip and the second optical sensor chip; a first accommodating cavity accommodating the first light wavetransmitting unit, a second accommodating cavity accommodating the second light wave transmitting unit, a third accommodating cavity accommodating the first optical sensor chip and a fourth accommodating cavity accommodating the second optical sensor chip are respectively enclosed by the isolation grating walls and the substrate; the inner walls at the peripheries of the first accommodating cavity and the second accommodating cavity have draft angles; and the surfaces on the inner walls of the first accommodating cavity and the second accommodating cavity are provided with non-conductive reflective plated films. The technical effect of the heart rate module is that the light extraction quantity of the light wave transmitting units can be increased.

The invention relates to a method for reducing noise in a photoplethysmography signal and an electronic device. The method for reducing noise in the photoplethysmography signal and the electronic device are provided. The electronic device may include a first light emitter, a second light emitter, a first light receiver, and a second light receiver. The first light emitter and the second light emitter can respectively emit a first light signal and a second light signal with different wavelengths to the skin surface of a user. The first optical receiver may generate a first PPG signal based on the received first light signal. The second optical receiver may generate a second PPG signal based on the received second light signal. The second PPG signal may be used to determine a magnitude of noise in the first PPG signal. The electronic device can use the second PPG signal to reduce noise in the first PPG signal and obtain the heart rate according to the noise-reduced first PPG signal. By implementing the scheme, the electronic equipment can reduce the noise in the PPG signal and improve the accuracy of heart rate detection.