153 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 discloses an anti-drunk driving and safe-health driving method which comprises the following steps: combining the heart rate change and body temperature change of a driver in a vehicle, alcohol concentration detection in the vehicle and a third party remote video monitor and control so as to judge whether the driver is drunk and guard against the drunk driving of the driver in a plurality of ways; and giving a health safety warning and rational suggestion to the driver according to the abnormal change of the heart rate caused by high-speed driving or long-time fatigue driving ordrunk driving of the driver. By utilizing the anti-drunk driving and safety-health driving method, a more rigorous and initiative anti-drunk driving method is formed so that the driver cannot subjectively and deliberately escape the drunk detection; the limitation and misjudgment of a way for judging whether the driver is drunk by singly detecting the alcohol concentration in the vehicle is solved, and the accident caused by drunk driving is reduced; and meanwhile, the anti-drunk driving and safety-health driving method is good for the cardiovascular health of the driver, and can be used for reducing the high-speed driving syndrome of the driver.

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.

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.

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 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.

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 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 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.