318 results about "Vital sign detection" patented technology

The invention discloses a video-image-based method for detecting a non-contact vital sign. The method comprises the following steps of: acquiring video images continuously according to a fixed frame frequency, detecting a region of interest (ROI) region automatically, separating a vital sign signal from a multichannel signal separated from the ROI region, extracting the frequency of the vital sign signal and converting the frequency into the vital sign to acquire a detection result. The invention also discloses a video-image-based system for detecting the non-contact vital sign. The method and the system have the advantages of quickness, real time, capacity of realizing continuous monitoring, high robustness, low cost, wide application range and the like.

A hemodialysis treatment apparatus includes a circulating blood volume variation rate detecting device, a vital sign detecting device and a display. The circulating blood volume variation rate detecting device detects a circulating blood volume variation rate of a patient in a time-course of a hemodialysis treatment. The vital sign detecting device detects a vital sign value of the patient in the time-course of the hemodialysis treatment. The display has a screen and displays both the circulating blood volume variation rate and the vital sign value on the screen along a time scale. The hemodialysis treatment apparatus dialyzes and ultrafiltrates extracorporeally circulating blood of the patient to perform the hemodialysis treatment.

A method and system for cancelling body movement effect for non-contact vital sign detection is described. The method begins with sending on a first electromagnetic wave transceiver a first electromagnetic signal with a first frequency to a first side of a body, such as a person or animal. Simultaneously using a second electromagnetic wave transceiver a second electromagnetic signal is sent with a second frequency to a second side of a body, wherein the first frequency and the second frequency are different frequencies. A first reflected electromagnetic signal reflected back in response to the first electromagnetic wave on the first transceiver is received and a first baseband complex signal is extracted. Likewise a second reflected electromagnetic signal reflected back in response to the second electromagnetic wave on the second transceiver is received and a second baseband complex signal is extracted. The first baseband complex signal is mathematically combined with the second baseband complex signal to cancel out a Doppler frequency drift therebetween to yield a periodic Doppler phase effect.

Methods for recovering a detected signal in non-contact vital sign detection are provided. According to one embodiment, a detected reflected signal from a non-contact vital sign detection system can be received and provided along I channel and Q channel signal lines. A complex signal S(t) can then be reconstructed from the I channel and Q channel signal lines through complex signal demodulation. A Fourier transform can be used to obtain the detected signal's spectrum for spectrum analysis. Angular demodulation can be used to recover the information corresponding to original body movement. The complex signal demodulation and angular demodulation techniques used to provide information to determine original body movement are capable of avoiding the null detection point without limitations on frequency tuning or channel selection.

The invention discloses a finger vein image acquisition device. The device comprises an infrared light source, a finger detection position and an infrared image acquisition unit, wherein the infrared image acquisition unit is used for acquiring the vein image of a detected object placed at the finger detection position under irradiation of the infrared light source; and the device also comprises a vital sign detection unit which is used for acquiring the vital sign information of the detected object so as to judge whether the detected object is a true finger. The device can avoid the phenomenon that a person from places an artificial finger or a forged vein image at the finger detection position and the finger vein image acquisition device cannot distinguish between the realness and the fakeness to allow the artificial finger or the forged vein image to pass through safety certification, so that the safety of the system is obviously improved. The device can perform light source compensation by adjusting the brightness of the infrared light wave and reduce the influence of the stray light, such as sunlight, light and the like, on the image acquisition effect by using a shielding housing, so that the accuracy of the image acquisition is improved.

A vital signs detection system has a terminal capable of being connected to detecting means of detecting vital signs; a program server of storing a program and/or data to operate the detecting means; and an information server of communicating with the terminal; wherein: when an operation switch of the detecting means is turned ON, the terminal transmits information including the type of the detecting means to the program server; on receiving the information, the program server transmits a predetermined program and/or data corresponding to the information to the terminal according to the information; the detecting means operates according to the predetermined program and/or data received by the terminal, and thereby detects vital signs; and the terminal transmits the vital signs detected by the detecting means to the information server.

The invention relates to a multi-physiological parameter long-time wireless nondestructive detecting system based on short message service, SMS. The invention comprises a sensor terminal and a server terminal, wherein, the sensor terminal is a portable multi-physiological detector carried by the detected user; the server terminal comprises a remote server, a movable communicator handed by medical staff, a hand-held device and a desk device. The invention detects the multiply physiological parameters of user, to be transmitted via the movable communication network with the remote server; the hand-held device and the desk device are via local network accessed into the computer network to connect the remote server; the medical staff via the movable communicator and movable communication network can transmit signals with the portable multi-physiological detector and the remote server. The invention builds a platform formed by the portable character detector and a movable communication network short message server, to realize full-automatic detection.

The invention provides a heartbeat frequency detection algorithm of a non-contact vital sign detection system; the steps are: respectively doing bandpass filtering for I and Q two way signals outputted by a continuous wave doppler radar; using a center estimate algorithm to carry out useful dc component recovery; using a complete cluster experience modal decomposition algorithm to separate a heartbeat signal from a human body jitter signal, a breathing signal and environment interference noises; resolving a Hilbert marginal spectrum of each decomposition signal and doing peak value detection; finding out the Hilbert marginal spectrum corresponding to the heartbeat signal according to a marginal spectrum peak position and energy concentration degree close to the spectrum peak; obtaining heartbeat frequency information according to the spectrum peak position. The heartbeat frequency detection algorithm can effectively extract the heartbeat signal under unstable human body and large environment interference noises, thus obtaining accurate heartbeat frequency information, improving anti-interference property of the non-contact vital sign detection system, and satisfying heartbeat frequency detection accuracy demands of medical affairs personnel.

The invention relates to a fireman individual-soldier system on the basis of a wireless Mesh network framework. The system consists of a wireless monitoring mainframe, a plurality of wireless individual-soldier sub-machines and a plurality of wireless repeaters, wherein the wireless monitoring mainframe consists of a monitoring module and a wireless center node module; and each wireless individual-soldier sub-machine consists of a central processing unit module, a positioning module, a vital sign detection module, a distress call module, an environment condition detection module, a carried equipment detection module and a wireless terminal node module. When the fireman individual-soldier system is applied particularly, firemen wear the wireless individual-soldier sub-machines to enter a fire site or other accident sites and a chief officer monitors information such as postures, motion tracks, vital signs, environment conditions, carried equipment conditions and the like through the wireless monitoring mainframe, so that the intelligence support of a command decision is provided for the chief officer in time and a scientific basis can also be provided for daily tactical training. By the fireman individual-soldier system, the modernization, automation and intellectualization levels of a fire command are improved and the battle damage rate of the firemen can also be effectively reduced.

The invention discloses an intelligent anaesthesia system. The intelligent anaesthesia system comprises an intelligent control end, a vital sign detecting end, an anesthetic injecting end, an indoor environment monitoring end, an electronic medical information end, a breathing machine and a monitoring display screen, wherein the vital sign detecting end, the anesthetic injecting end, the indoor environment monitoring end, the electronic medical information end, the breathing machine and the monitoring display screen are connected with the intelligent control end; the vital sign detecting end comprises a brain wave scanner, an artery systolic pressure measuring equipment, body temperature detection equipment, pulse detection equipment, muscle tension detection equipment and pain sense detection equipment; the electronic medical information end comprises a data acquiring module, an information input module, a data decoding module, a wireless data transmitting module, an outpatient service receiving end module, a leaving information module and a central server. In the intelligent anaesthesia system disclosed by the invention, the intelligent control end is used for receiving the information from the vital sign detecting end, the indoor environment monitoring end, the electronic medical information end and the breathing machine and controlling the anesthetic injecting end to perform quantitative dosing so as to feed back the physical condition of a patient in real time, reduce occurrence of medical accidents and alleviating the workload of an anesthetist.

The invention discloses a method and device of detecting human vital signs based on ultra-wideband radar. The method comprises the steps of acquiring multiple first echo signals of normal human breathand/or heartbeat and multiple second echo signals of abnormal human breath and/or heartbeat through ultra-wideband radar, preprocessing the signals, and extracting to obtain a normal detection sequence and an abnormal detection sequence; setting a convolutional neural network; training the convolutional neural network based on the normal detection sequence and the abnormal detection sequence; detecting breath and/or heartbeat of a current detection subject through the trained convolutional neural network, and outputting the results of whether the heartbeat is normal. The device herein comprises a signal processing module, a convolutional neural network setting module, a training module and a detection module. The method and device have the advantages that deep learning helps improve the accuracy of detecting heartbeat frequency, the capacity to distinguish normal heartbeat and abnormal heartbeat is improved, and real-time detection is distinguished accurately.

The invention discloses an intelligent early warning system for preventing a pileup on a highway. The intelligent early warning system comprises a vehicle-mounted terminal and a server, wherein the server is used for storing, calculating and analyzing data; the vehicle-mounted terminal is composed of a power supply management module, an embedded processor, a satellite positioning module, a mobile communication module, a ZigBee wireless communication module, a fatigue driving detection module, a vital sign detection module, a brake detection module, an acceleration detection module, a tire pressure detection module, an oil tank temperature detection module, a dangerous goods transportation reminding module, a liquid crystal display module and a voice prompt module, and a vehicle is in communication with nearby vehicles by automatically establishing a Zigbee wireless network and has access to the server through a mobile communication network. The intelligent early warning system has the functions of highway fatigue driving early warning, driver sudden illness early warning, emergency braking early warning, brake failure early warning, tire pressure abnormity early warning, oil tank overtemperature early warning, dangerous goods transportation one-key reminding and the like on the basis of the Internet of Things, drivers are reminded to take related measures in advance in a safe distance so that collision with vehicles having potential safety hazards can be avoided, and a pileup accident on the highway is prevented effectively.

The invention relates to the field of fire rescue, and discloses a fire detection rescuing method and system based on a millimeter-wave radar technology. The method provides a personnel statistics method based on the millimeter-wave radar, a human body target vital sign detection method, a millimeter-wave radar detection technology, a computer storage medium, a smoke detector and a fire rescue system thereof. Through a smoke alarm system awakening end control center, early warning information is sent to a background data center, or a terminal control center is awakened in fixed time, a millimeter microwave signal controls to be emitted through a millimeter microwave signal emission module, then, a reflection echo signal is obtained, the human body target amount and trajectory of a millimeter microwave coverage area can be determined according to echo information, the corresponding data of each human body target is transmitted to the background data center, so that the position and thevital sign of a rescue target can be accurately positioned when fire occurs, a quick and accurate rescue scheme is provided for rescue, life loss is reduced, and the danger coefficient of rescue is lowered.

A novel intelligent alarm clock based on human body vital sign detection comprises an alarm clock base machine unit and a wristband unit. The alarm clock base machine unit comprises a core plate, a turning-connection circuit, a base machine Bluetooth wireless transmission module, a speaker, a color liquid crystal display screen, an extensible USB interface, a temperature and humidity sensor, an air quality detection sensor and an LED lamp in the changeable color, wherein the turning-connection circuit, the base machine Bluetooth wireless transmission module, the speaker, the color liquid crystal display screen and the extensible USB interface are connected with the core plate, the temperature and humidity sensor, the air quality detection sensor and the LED lamp in the changeable color are connected with the turning-connection circuit, and the core plate and the turning-connection circuit are connected with a 5V power supply through a power supply interface. The wristband unit comprises a main control unit, a wristband Bluetooth wireless transmission module, an acceleration sensor, a temperature sensor, a photoelectric type heart rate sensor and a lithium battery, wherein the wristband Bluetooth wireless transmission module, the acceleration sensor, the temperature sensor, the photoelectric type heart rate sensor and the lithium battery are connected with the main control unit, and the lithium battery is further sequentially connected with a charger and a USB power supply interface module for being connected with an external power supply. According to the novel intelligent alarm clock based on human body vital sign detection, environmental indexes and physical indexes can be professionally measured, and the function of indicating the sleep quality, the function of a clock and the function of displaying and setting the date can be achieved through intelligent analysis.

The invention discloses an asphyxia prevention intelligent control system for an automobile, and the system is an intelligent control device for preventing a child from being asphyxial when the childstays and sleeps in the automobile while an air conditioner of the automobile is turned on during parking. The control system includes a vehicle speed detecting module, a vital sign detecting module,an air temperature detecting module, a signal processing module, an alarm module, and a safety measure module. When the vehicle speed detecting module detects that a vehicle speed is zero, the vital sign detecting module starts to detect whether there is a person in the vehicle or not. When detecting a person in the vehicle, the gas temperature detecting module monitors the oxygen and carbon dioxide contents and temperature in the vehicle in real time if a vehicle owner does not come back within a preset time threshold. The signal processing module processes the information collected by the air temperature collecting module and judges whether the alarm module is activated to send an alarm message and the safety measure module opens a window or not. The system can effectively prevent the occurrence of asphyxia events.

The invention relates to a detection device (1) for vital signs, comprising a sensor (2) and an energy supply module (3), wherein the sensor (2) has at least one detection means (5, 6, 7, 8), which is designed to detect a vital sign from the group consisting of the oxygen content of the blood, body temperature, skin moisture, conductivity of the skin, and pulse, and furthermore comprises a first (10) communication module, wherein the energy supply module (3) has a second communication module (20) and an energy source (21), and wherein a wireless communication connection (4) exists between the first (10) and second communication module (20), wherein the sensor (2) is configured as an elastically restorably deformable thin-film sensor, and the communication connection (4) is configured for transmitting energy and measured values, or measurement data.

The invention discloses a movable anesthesia operating table which comprises a foldable wheelchair bed body device, an intelligent control end, a vital sign detecting end, a narcotic injection end, an electronic medical information end, a breathing machine, a monitoring display screen and a remote diagnosis end. The vital sign detecting end comprises a brain wave scanner, a systolic arterial pressure measuring device, a body temperature detecting device, a pulse detecting device, a muscle tension detecting device and a pain sense detecting device. An intelligent terminal and a central server are arranged in the electronic medical information end. By receiving information of the vital sign detecting end, the electronic medical information end and the breathing machine through the intelligent control end, the narcotic injection end is controlled to feed medicine quantitatively, the monitoring display screen can feed back physical conditions of a patient in real time, the remote consultation can be achieved through the remote diagnosis end, medical accidents are reduced, the movable anesthesia operating table can be folded into a bed or a wheelchair for use due to the foldable wheelchair bed body device and is flexible and convenient to use, and the workloads of anesthetists are reduced.

The present invention relates to a system for vital signs detection. The system comprises a radiation source (16) for emitting radiation in a limited wavelength range for illuminating a skin area of a subject and a radiation detector (12), a radiation detector (12, 30, 40) for detecting radiation reflected from a skin area of a subject (1) in response to said illumination, and for generating first and second detector signals, the first detector signal representing radiation (2) reflected from the skin area of a subject in a first wavelength subrange of said limited wavelength range of radiation (3) and the second detector signal representing radiation in a second wavelength sub-range of said limited wavelength range of radiation different from said first wavelength sub-range, and a vital signs detector (14) for detecting a vital sign from a combination of said first and second detector signals by computing the difference between said first and second detector signals.

The invention provides a human body vital sign signal separation method based on VMD (Variational Mode Decomposition). The human body vital sign signal separation method comprises the following steps: 1) carrying out moving target detection, range gate switching and low-pass filtering on a radar echo signal obtained by a non-contact vital sign detection system based on an ultra-wide-band radar to obtain a target vital sign signal; 2) processing the target vital sign signal obtained in step 1) by adopting a VMD algorithm, and separating a preset number of modal components; and 3) drawing a time-domain oscillogram and a spectrogram of the time-domain oscillogram for each modal component separated in step 2), and carrying out spectral analysis to obtain the required target vital sign signal. The human body vital sign signal separation method can effectively separate and extract the single-target and multi-target vital sign signals through the VMD algorithm.