156 results about "Heart rate change" patented technology

Apparatus is provided that includes an electrode device, adapted to be coupled to a vagus nerve of a subject, and a control unit, adapted to drive the electrode device to apply to the vagus nerve a current that reduces heart rate variability of the subject. Also provided is a method comprising applying to a vagus nerve of a subject a current that reduces heart rate variability of the subject.

The present invention relates to a system (34) for detecting variation of heart rate, HR, of a user (14), said system comprising an optical sensing unit (12) for measuring a heartbeat-related optical signal of said user (14) over time, a processing unit (20) for deriving an HR-variation signal from said heartbeat-related optical signal, an analyzing unit (22) for comparing said derived HR-variation signal to a reference HR range, and an initiating unit (26) for initiating a process for measuring an informative heartbeat-related signal of said user (14) depending on said comparing of said analyzing unit (22).

The invention relates to a physiologic parameter monitoring device comprising a sensor unit, a processing unit and a notification unit; the sensor unit is used for acquiring a biological signal from the surfaces of ears of a user; the processing unit is used for processing the biological signal and outputting physiologic parameters, such as heart rate, heart rate change rate, blood pressure, blood pressure change rate, degree of blood oxygen saturation and body temperature; and the notification unit issues the physiologic parameters in a visual or audio way. The physiologic parameter monitoring device continuously detects one or a plurality of items of physiologic signals and parameters for the user under the condition of not interfering with the daily activities of the user. A power supply of a piezoelectric device of the sensor unit supplies power for the sensor unit by utilizing the piezoelectricity and can be used as a switch of the device and reduce the reliance on to batteries.

A method, system, and computer program product related to the detection of physical activity using changes in heart rate. The method, system, and computer program product evaluates short term glucose demand and long term insulin action due to physical activity. The method, system, and computer program product is further related to the improvement of open and closed loop control of diabetes by accounting for the metabolic changes due to physical activity. The method, system, and computer program product is directed to detecting in real time the short and long term effects of physical activity on insulin action via heart rate analysis, and recommending changes in insulin dosing to compensate for the effects of physical activity. With these recommendations, the open and closed loop control of diabetes can be improved and steps can be taken to prevent hypoglycemia that may result from increased insulin sensitivity due to physical activity.

The invention provides an autoreflection heart rate detector and belongs to the field of wearable electronic equipment. The heart rate detector is wearable electronic equipment; the wearable electronic equipment comprises an integrated heart rate LED (Light-Emitting Diode) transceiver, a heart rate signal front end processing circuit, a capacitive skin contact sensor, an MCU (Main Control Unit), a tri-axis gravity acceleration sensor module, a micromotor, a shaking alarm module, a bluetooth low-power-consumption radio frequency module and a display module. The heart rate detector is capable of continuously detecting human body heart rate change condition of a user in real time for 24 hours and automatically analyzing the human body heart rate changes of the user under different human body physical states. According to the technical scheme, the heart rate detector is capable of monitoring whether the user wears the wearable electronic equipment; a wireless connection is established between the heart rate detector and intelligent mobile equipment by use of the bluetooth low-power-consumption radio frequency module, so that the wearable electronic equipment is capable of giving out an alarm prompt on abnormal heart rate by use of the wireless connection with the intelligent mobile equipment, preventing diseases or body discomfort prompted by heart rate abnormity of the user and realizing a remote human body heart rate monitoring function.

The invention discloses a method for identifying atrial fibrillation and atrial premature beats from a 10-second electrocardiogram. The method comprises the following steps that S1, firstly, an electrocardiogram signal is pretreated to filter out baseline drift, power frequency interference and other noise, the electrocardiogram signal after the noise is filtered out is re-sampled to a certain fixed sampling rate, then electrocardiogram QRS wave feature points are extracted by adopting a method based on a wavelet transformation and logic regression algorithm, and then a T wave is searched forby adopting a search window dynamically determined based on an instantaneous heart rate. The invention relates to the technical field of medical examination. The method for identifying atrial fibrillation and atrial premature beats from the 10-second electrocardiogram has the advantages that by defining a set of feature parameters based on heart rate change and a P wave, an obtained feature combination can identify atrial fibrillation and other heart rhythm better, the feature parameters are less sensitive to noise interference, a set of feature parameters based on the P wave are defined, theaccuracy is further improved, and quality information of the electrocardiogram signal is utilized, so that the identification of PAC is more accurate.

Provided are an integrated sports monitoring system and a method thereof. Sports posture data of athletes' multiple parts such as footsteps, legs and arms, and human body load data are automatically collected and recorded in real time in the athletes' training or game process, and information such as athletes' motion tracks, heart rate changes, fatigue, sensitivity, load, physical status is displayed in real time. A system device includes an athlete monitoring device, a special wireless communication base station, a monitoring handheld terminal, a special analysis terminal, a data cloud systemserver, a data analysis terminal, a coach terminal, an online real-time monitoring terminal and an athlete terminal. The integrated sports monitoring system has the advantages that a sensor technology, a cloud computing technology, a data mining technology and a wireless communication technology and the like are adopted to perform multi-dimensional real-time online monitoring and comprehensive analysis on information such as athletes' motion postures, sensitivity, load, physical conditions and heart rate, and provide scientific reference for sports training or teaching.

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.

This invention measures cerebral blood volume changes to evaluate, from properties of low-frequency components of such changes and heart rate changes calculated by analysis, a distribution of cerebral blood vessel hardness and its with-time change to thereby estimate and display diseased and dangerous portions based on the evaluation. Briefly, the above-noted object is attainable by a biological measurement system having a cerebral blood volume measurement unit which measures a regional cerebral blood volume of a body under test, an analyzer unit that analyzes a signal measured by the cerebral blood volume measurement unit, an extraction unit for extracting, based on an output of the analysis unit, information concerning a regional cerebral blood vessel state of the test body, and a display unit which displays a measurement result of the cerebral blood volume measurement unit, an analysis result of the analyzer unit or an extraction result of the extraction unit.

The invention relates to a heart rate-based fall detection method and a heart rate-based fall detection system applied to a wearable electronic device. The system comprises an air pressure unit, a heart rate unit and a fall unit, wherein the air pressure unit is used for starting an air pressure detection function to acquire a relative height difference; the heart rate unit is used for starting heart rate detection if the relative height difference is larger than or equal to a preset height difference threshold; and the fall unit is used for sending a fall alarming signal when the heart rate change value is detected to be larger than or equal to a preset heart rate change threshold. Thus, according to the heart rate-based fall detection method and the heart rate-based fall detection system applied to the wearable electronic device, through detecting the air pressure to trigger heart rate detection, a condition in which an old person does not wear the detection terminal on the body can be eliminated, whether the old person falls can be intelligently judged more accurately, timely help is given, practicability is strong, and the use is convenient.

The invention discloses a non-contact type heart rate measuring method based on convolutional neural network. The non-contact heart rate measuring method comprises the steps of 1, according to the peak-to-peak value spacing information of an ECG signal or a BVP signal, constructing a pre-training image for reflecting the heart rate changes of a human body; 2, adjusting the structure of a model, and initializing the convolutional neural network through parameters which are pre-trained on an ImageNet data set; 3, inputting the pre-trained image as a training set into the convolutional neural network for training, and regulating the parameters of the network; 4, generating a time and space characteristic image for reflecting the heart rate changes of the human body through real human face videos; and 5, inputting the time and space characteristic image into the convolutional neural network for training, adjusting the parameters of the network, and finally obtaining the optimal heart rateforecasting model. The non-contact type heart rate measuring method disclosed by the invention can improve the accuracy and the robustness of heart rate measurement under complex scene.

An apparatus, a method and a computer program for the determination of sympathetic activity are disclosed. The method comprises: receiving heart activity data of a person; determining a recovery heart rate change speed during a recovery heart rate period in the heart activity data; and determining a sympathetic activity state of the sympathetic nervous system of the person based on the determined recovery heart rate change speed.

The invention discloses a fatigue driving monitoring and early warning system. The system comprises an action capture system, a monitoring wristband, a signal processing module and a voice broadcast system; and a facial feature of a driver is captured through a high-speed camera and heart rate data of the driver is obtained through the monitoring wristband to monitor a body state of the driver, thereby preventing situations such as fatigue driving and the like. The fatigue driving monitoring and early warning system provided by the invention is efficient in data processing and reliable in communication, gives consideration to action and heart rate changes of the driver, is high in data reliability, can effectively perform early warning on a fatigue driving behavior, and is suitable for popularization and application.

The invention discloses a fatigue driving and drunk driving monitoring and warning system which comprises an action capture system, a monitoring bracelet, a signal processing module and a voice broadcasting system. The facial features of a driver is captured through a high-speed camera and the heart rate data of the driver is obtained through the monitoring bracelet to monitor the physical state of the driver together, and fatigue driving and the like are prevented. At the same time, the monitoring bracelet is provided with an alcohol detection module, when the alcohol content of the driver exceeds a standard, a vehicle is automatically locked, and drunk driving is avoided. The fatigue driving and drunk driving monitoring and warning system provided by the invention has the advantages of efficient processing of data, reliable communication, the consideration of action and heart rate changes of the driver at the same time, and high data reliability, the early warning and processing of fatigue driving and drunk driving are carried out effectively, and the system is suitable for promotion and use.

Monitoring apparatus (4) for monitoring a user's heart rate and / or heart rate variation, the apparatus comprising: a capacitor (22) which is position able on or near a body part of a person, for example a person's limb, for example an arm (3), such that an electrical capacitance of the capacitor (22) is influenced by blood pressure pulses of blood running through the body part, wherein, the apparatus (4) further comprises a data processor (26) for determining the heart rate and / or heart rate variation from changes in the capacitance of the capacitor (22).

The invention discloses an automobile safety belt capable of monitoring heart rate and relates to the field of automobile spare parts. The safety belt comprises a belt body, a buckle body and a buckle seat. The belt body is connected with the buckle body, the buckle body is in clamping fit with the buckle seat, a sponge layer is arranged on the lower surface of the belt body, massage protrusions are arranged on the lower surface of the sponge layer, the sponge layer and the belt body are connected through a binding belt, and a Holter ECG monitor is arranged in the sponge layer and electrically connected with the buckle body. When the safety belt is bound to a user, the problem that the user feels uncomfortable due to the fact that the safety belt is hard, and the user wears the belt for a long term is solved, the heart rate change of the heart can be monitored in real time, sudden death caused by sudden heart attack in the driving process is avoided, drinking driving is avoided to certain extent, personal property loss caused by artificial reasons in the automobile running process is reduced, the service life of the Holter ECG monitor is prolonged, and the Holter ECG monitor can work all the time. The Holter ECG monitor can operate only under the condition that the safety belt is fastened, and waste caused by the fact that the Holter ECG monitor operates in an unmanned mode is avoided.

The invention discloses an air conditioner, a control method and device thereof and an air conditioning system. The air conditioner control method comprises the steps that a user heart rate value is obtained; a user heart rate change amplitude is calculated according to the user heart rate value; and the air outlet temperature of the air conditioner is controlled according to the user heart rate change amplitude. The sleeping state of the user can be accurately grasped, the air outlet temperature of the air conditioner is matched with the sleeping state of the user, the sleeping comfort of theuser can be improved, and the sleeping quality of the user is improved.

The invention discloses a wearable watch. The wearable watch comprises a pressure sensor used for recording the pressure condition around the watch in a real-time manner; a gyroscope module used for recording the moving orientation data of a user; a speed sensor used for recording the moving trend of the user; a temperature perceiving module used for recording the body temperature of the user in a real-time manner; a heart rate module used for recording the heart rate change of the user; a GPS module used for acquiring the position of the user; an ROM module used for acquiring data in the pressure sensor, the gyroscope module, the acceleration sensor, the temperature perceiving module, the heart rate module and the GPS module and further comprehensively judging whether the user is in a drowning state; and a communication module used for sending integrated data to a rescuing department when a drowning state is judged by the ROM module. The wearable watch with a safety device additionally arranged is easy to popularize and meanwhile effectively monitors drowning accidents.

The invention discloses an anesthesia depth monitoring device for anesthesiology department, which comprises a bearing plate, an ultrasonic detector is arranged on one side of the upper surface of the bearing plate, a line pipe is arranged on one side of the ultrasonic detector, and one end of the line pipe is connected to There is a handle, and the other end of the handle is equipped with an ultrasonic detection head. When the patient is under anesthesia, the patient's physical condition can be detected at any time through the ultrasonic detector and the ultrasonic detection head, and the patient's heart rate can be monitored through the heart rate detector and the heart rate detector. The situation, and through multiple heart rate detectors, the detected data is more accurate. The device is equipped with a blood pressure detection device and a blood pressure sensor, and the patient's blood pressure can be monitored through the blood pressure sensor and blood pressure detection device. The anesthesia depth monitoring device has a simple structure and is easy to operate, and can comprehensively monitor an anesthetized patient to ensure the patient's physical condition.

The invention discloses a ring topology heartbeat detection method and application based on OpenMP thread, which solves the problems that the running state of each thread program in the OpenMP-based parallel technology can not be effectively detected under the prior art condition. When a thread initialization is detected, a thread structure is established based on the thread number of the thread.When the thread is started, the initial timestamp of the thread is recorded. If the thread meets the predefined time interval, the system records the heart rate value generated by the thread once, andjudges whether the current thread is in the normal running, suspended, busy, normal exit, abnormal exit and other states. In addition, the threaded heart rate curve can be drawn and the heart rate change can be monitored remotely. Compared with the traditional centralized detection method, this method does not need to generate additional central detection threads, optimizes the system efficiency,and improves the accuracy of detection.

The invention relates to an integrated type first-aid alarm for electric power detection. The integrated type first-aid alarm comprises near electric detectors, a single chip, an audible and visual alarm, a heart rate sensor and an air bag, wherein four near electric detectors are respectively mounted on the work clothes, a helmet, gloves or insulated shoes of a detection worker in one-to-one correspondence; the heart rate sensor is connected with the input end of the single chip; the heart rate sensor is worn on the wrist or chest of the detection worker, and the output end of the single chip is connected with the air bag through a driving circuit; and the air bag is located on the work clothes of the detection worker. According to the integrated type first-aid alarm provided by the invention, when the detection worker gets an electric shock, the obvious heart rate change is detected through the heart rate sensor, the heart rate change is identified by the single chip, an instruction is sent to the driving circuit, the air bag is popped up, the detection worker can quickly leave the near electric point, and the situation that the detection worker cannot self-save when the companion is absent can be avoided.

The invention relates to an exercise and fitness method based on the heart rate. The method includes the steps that the maximum heart rate Xmax and the resting heart rate Xr of a user are acquired firstly, and the heart rate interval between the resting heart rate Xr and the maximum heart rate Xmax of the user is divided into multiple heart rate regions; then, in the exercise and fitness process of the user, the instant heart rate value of the user is kept in a certain heart rate region in the heart rate regions in the step A1 in a preset time period. According to the method, the user can scientifically arrange the exercise intensity and exercise amount according to the heart rate change of the human body, and the user can do physical exercise more effectively; in addition, when multiple users do exercise in a gymnasium, exercise conditions can be set according to the method, the enthusiasm of the users for physical exercise is aroused, and meanwhile the interestingness of physical exercise can be improved.

The invention relates to an examination anti-cheating system. The examination anti-cheating system comprises a wristband worn on an examinee's wrist, a monitoring system and an induction system disposed at an examination room entrance; the wristband is provided with an identity information moduel for distinguishing an identity of an examinee, a first wireless module in communication with the monitoring system and a heart rate detection module for detecting a heart rate change of the examinee; the induction system comprises an identity recognition module for recognizing the identity information module, a second wireless module in communication with the monitoring system;the monitoring system comprises a monitoring camera, a third wireless module in communication with the first and second wireless modules, a processor for processing a message, a heart rate monitoring module, a control module for controlling rotation of the monitoring camera and an examinee information database; and the heart rate monitoring module is used to monitor examinee's heart rate change information sent by the heart rate detection module in real time, and, when the heart rate of one examinee exceeds a normal heart rate change scope, the monitoring camera is rotated through the control module and then perform intensive monitoring for the examinee.

The invention discloses an information processing method and device and an electronic device. The information processing method includes the steps that an eye image of a tested person is collected through an iris camera of the electronic device, analyzed and processed, and the pupil change rate of the tested person is obtained; the heart rate of the tested person is collected through a heart rate sensor of the electronic device, analyzed and processed, and the heart rate change rate of the tested person is obtained; when the pupil change rate of the tested person is larger than a first threshold value, and the heart rate change rate of the tested person is larger than a second threshold value, it is determined that the tested person is telling a lie. In this way, according to the information processing method and device and the electronic device, testing can be carried out only by enabling the tested person to be in contact with the heart rate sensor and face the iris camera, and the operation process of lie detecting is simplified.

The invention relates to the field of a mobile terminal and discloses a method and system for rejecting incoming calls of a mobile terminal based on a user's sleeping state. The method includes that an intelligent wearing device monitors the user's heart rate data in real time and sends the data to the mobile terminal; the mobile terminal compares the difference of the received heart rate data and the heart rate data of the user in the sleeping state with a predetermined method threshold value; when the difference is less than the predetermined threshold value within the predetermined time, the mobile terminal judges that the user enters a sleep state and automatically turns on the call rejecting function; and when the difference is greater than or equal to the predetermined threshold value within the predetermined time, the mobile terminal determines that the user is in a non-sleep state, and incoming call rejecting restriction can be automatically released. By monitoring the heart rate change of the user to determine whether the user is in the sleep state, the incoming call rejecting function is automatically started at a proper time, the user cannot be disturbed during the sleeping intelligently, the user's sleeping quality is guaranteed, and convenience for the user is provided.

Cerebral blood volume changes are measured to evaluate, from properties of low-frequency components of such changes and heart rate changes calculated by analysis, a distribution of cerebral blood vessel hardness and its change over time to thereby estimate and display diseased and dangerous portions based on the evaluation. This is attainable by a biological measurement system having a cerebral blood volume measurement unit which measures a regional cerebral blood volume of a body under test, an analyzer unit that analyzes a signal measured by the cerebral blood volume measurement unit, an extraction unit for extracting, based on an output of the analysis unit, information concerning a regional cerebral blood vessel state of the test body, and a display unit which displays a measurement result of the cerebral blood volume measurement unit, an analysis result of the analyzer unit or an extraction result of the extraction unit.

The invention relates to a wristwatch capable of reminding of the alcohol amount. The wristwatch comprises a wrist belt and an alcohol amount reminding module arranged in the wrist belt. The alcohol amount reminding module comprises a pulse sensor used for sensing the pulse information of a wearer, a voice input device used for collecting voice information of the wearer, a positioning module used for obtaining the positioning information of the wearer, and a processor. The processor is electrically connected with the pulse sensor, the voice input device and the positioning module, judges whether the wearer drinks wine or not according to the current time, the voice information, the positioning information, schedule plan data and social contact network data, obtains the heart rate changing condition of the wearer according to the pulse information, and sends a corresponding alcohol amount reminding instruction according to the heart rate changing condition. The wristwatch capable of reminding of the alcohol amount is convenient to wear and can immediately judge whether the wearer drinks wine or not and remind the wearer to control the wine drinking amount in time according to the wine drinking amount.

The invention relates to a processing method for simultaneously acquiring fetal heart rate and fetal heart waveform, which comprises the following steps of: starting a fetal heart rate instrument, transmitting an excitation signal to an ultrasonic transduction plate by an exciting circuit, transmitting ultrasonic wave by the ultrasonic transduction plate, and converting the reflected heartbeat simulation signals into electric signals; demodulating, filtering and amplifying the electric signals to obtain fetal heart signals; simulating and amplifying the fetal heart signals and dividing the fetal heart signals into two paths, directly transmitting one path of fetal heart signals to a single chip to perform AD conversion, and digitally filtering the fetal heart signals to obtain heartbeat waveforms and bar charts; and shaping the other path of fetal heart signals through a comparator, capturing the fetal heart signals, and obtaining a heart rate value by calculation and filtration. The method can detect the fetal heart rate to obtain the heart rate change condition, can acquire the heartbeat waveforms and the bar charts for indicating the intensity of heartbeat, has alarm function, can improve the measurement precision and display definition of the fetal heart rate instrument, and enhances the intuition and convenience of the operation.