50 results about "Pulse analysis" patented technology

A pulse management system configured to perform a plurality of pulse measurements on each of a plurality of pulses of an acquired signal and to store results of the pulse measurements in an accessible data structure. The pulse management system includes a pulse analyzer that searches the data structure for pulses of the acquired signal that satisfy operator-provided search criteria. Similarly, the pulse analyzer can sort the selected subset of pulses based on sort criteria provided, for example, by an operator. The pulse analyzer can provide the operator with a user interface environment in which the operator specifies the search and sort criteria and in which the pulse analyzer displays the selected pulses with their associated pulse measurement results. The operator can advance through the selected pulses in any manner desired to display different pulses together or separately. The pulse analyzer thereby provides an operator with the capability to gain insights into a large number of acquired pulses through the selection of individual pulses meeting desired characteristics or relative time of occurrence, through the filtering or selection of pulses meeting specified criteria, and through the arrangement of those pulses according to the same or different criteria.

The pulse analysis is one of the important measures for Chinese medicine diagnosis. Doctor can understand the health condition of patient based on pulse condition of radial artery of the patient. The present invention provides blood pressure measuring method based on radial artery pulse information. The method includes detecting the pulse wave of radial artery in wrist with one mechanical sensor and detecting electrocardiac signal with two conducting electrode, and then determining artery blood pressure based on the time information extracted from these two signals. The device is calibrated with standard sphygmomanometer before used in continuous measurement of artery blood pressure without using sleeve belt.

The invention provides an arterial elasticity evaluating device based on pulse analysis. The device comprises a left-and-right channel pulse signal detecting module, a computer and a data storage card, wherein the left-and-right channel pulse signal detecting module is connected with an analog-digital conversion module and used for collecting pulse signals of bilateral limbs of a subject; the data storage card is used for storing the pulse signals of the subject and a created arterial elasticity evaluation report; the analog-digital conversion module, the data storage card and a printer are all connected with the computer; the computer is used for performing real-time analysis on the pulse signals, displaying and storing, and printing control, as well as realizing evaluation on pulse signal quality, normalization of the pulse signals, creation and analysis of a pulse template, adjustment of wavelet characteristic parameters, arterial elasticity evaluation and creation of the evaluation report. With the adoption of the device, the pulse signals can be collected from different positions in both sides of the subject and then analyzed and treated on real time, so as to accurately evaluate the arterial elasticity of the bilateral limbs of the subject.

The invention comprises a transmitting device which comprises a millimeter wave harmonic up-converting module, a millimeter wave fixed amplitude-amplifying module and a millimeter wave signal modulation mixing module, and a receiving device which comprises a millimeter wave harmonic down-converting module and a millimeter wave fixed amplitude-amplifying module. The transmitting device can generate a single pulse modulation signal and a mixed pulse modulation signal, which are used for testing the indexing of receiving and transmitting parameters of a millimeter wave radar and complicate communication signals; the millimeter wave fixed amplitude-amplifying module of the transmitting device can improve the temperature stability of the output signal in amplitudes at the temperature ranging from -10 DEG C to 60 DEG C, and is convenient for conducting precise measurement on a radar receiver; the millimeter wave signal modulation mixing module can realize the analog of Doppler echo signals of the millimeter wave radar of different distances, and the front and back edges of the millimeter wave pulse generated by the millimeter wave signal modulation mixing module is less than 8ns, and the distortion never occurs in a narrow pulse of 100ns, and the millimeter wave signal modulation mixing module has more than 90dB of extremely dynamic numerical control precise attenuation; the receiving device can ensure that no distortion occurs in a dynamic testing range of 40dB, which is convenient for frequency measurement and pulse analysis; the transmitting device and the receiving device of the invention are easy to be realized, the costs of the components adopted are low, the size of the device is small, and the device is portable.

The invention discloses a pulse diagnosis analyzer based on an MEMS sensor. A PVDF piezoelectric film force sensor adopting an MEMS is arranged on the radial artery of human body to be used as a sensing unit for acquiring pulse information; the collected pulse signals are digital signals, and waveform characteristic vector values of pulse waves are processed and analyzed by a single chip microcomputer (SCM) to obtain diagnosis results; and then, the diagnosis results are transmitted to a liquid crystal display (LCD) for displaying and a voice module for playing. The pulse diagnosis analyzer of the invention can also transmit pulse information to an upper computer through a wireless receiving and transmitting module and save and process data through pulse analysis software, thereby providing more detailed pulse diagnosis results for users or doctors. The pulse diagnosis analyzer of the invention can be carried conveniently, has low cost, is suitable for all classes of people to use, combines the modern science and technology and the pulse diagnosis theory, and develops and expands the Chinese traditional medicine.

The invention discloses a human health monitoring system and method based on an intelligent terminal. The human health monitoring system comprises a health monitoring shirt and the intelligent terminal, the health monitoring shirt comprises a shirt body (1), front end detection equipment and a micro-control unit (2), the front end detection equipment comprises a body temperature detection module, a pulse detection module and a falling-over detection module, and a microcontroller is connected with the intelligent terminal through a wireless communication network. A body temperature analysis module, a pulse analysis module and a falling-over judgment module are arranged in the microcontroller. According to the human health monitoring system and method, whether the body temperature and the heart rate of a monitored object are normal or not and whether the monitored object falls over or not can be judged, the intelligent terminal of a guardian can be timely informed when the health state of the monitored object is abnormal, the monitored object is remotely monitored by the guardian, the pressure of the guardian is reduced, and time of the guardian is saved. A pulse detection probe is arranged at the position of the heart, body temperature detection probes are arranged at the positions of the armpits, an accelerated speed sensor is arranged on the neckline of the shirt, and the monitor result is high in accuracy and good in reliability.

The invention relates to a broadband digital channelization method based on a signal third-order phase difference. A digital channelization design of multiple phase differential detection is used, thedifferential detection is adopted so that a signal detection threshold is normalized, therefore, detection of large instantaneous dynamic signals is realized, and subsequent phase refinement processing of the signals can be conveniently performed and in-pulse analysis of the signals is realized. A difference can be used to realize identification of fine frequency measurement of the signal and a phase-coded signal. An adaptive problem that a multi-channel digital receiver is difficult to achieve a threshold when a signal dynamic range is large is solved.

The invention relates to a radar signal modulation type identification method based on combined time-frequency characteristics, and is applied to the field of radar signal intra-pulse analysis and identification. According to the invention, radar signals are mapped to a two-dimensional time-frequency domain through short-time Fourier transform; and dimension reduction processing is carried out onthe signal time-frequency image from the perspective of signal energy and characteristic subspace by combining principal component analysis and matrix random projection, and mining combined depth characteristics of the time-frequency image by adopting a hierarchical automatic encoder model to realize classification and identification of signal types. The combined depth time-frequency feature recognition performance is better, the mined deep features are helpful for improving the recognition precision, and the algorithm is more efficient.

The invention provides a traditional-Chinese-medicine pulse detection and analysis system, as well as a traditional-Chinese-medicine pulse detection and analysis method. The traditional-Chinese-medicine pulse detection and analysis method comprises the following steps: acquiring user identification information by using an identity card reader; controlling a driving connector to drive a lifting rodto move downwards so as to allow a pulse sensor to contact with the wrist of a user; detecting the pressure value between the pulse sensor and the wrist of the user by using a pressure sensor; when the pressure value is not zero, controlling the driving connector to stop moving of the lifting rod so as to halt the pulse sensor on the wrist of the user; producing an equal-displacement pressurization instruction so as to control a stepper motor to drive a guide screw to move downwards, thereby allowing the pulse sensor to apply pressure of different levels on the wrist of the user; detecting pulse signals, including floating pulses, medium pulses and deep pulses, from the wrist of the user by three probes of the pulse sensor under the pressure of different levels; and then, analyzing the pulse signals so as to produce a pulse analysis report. The traditional-Chinese-medicine pulse detection and analysis system is capable of acquiring accurate pulse signals by applying pressure of different levels on a wrist part of a user, as well as performing analysis on the pulse signals so as to form a pulse analysis report.

The invention provides an intelligent health detection system which comprises a complexion detection module, a body detection module, a vision detection module and an information processing module. The complexion detection module is used for determining body constitution information of traditional Chinese medicine of a person under detection according to observation results of the person's face and tongue, and voice recognition and pulse analysis. The body detection module is used for acquiring body constitution information of the person under detection. The vision module is used for acquiringvision information of western medicine of the person under detection by detecting vision, color blindness and color amblyopia. The information processing module is used for receiving the body constitution information of traditional Chinese medicine determined through the complexion detection module, environment information acquired through an environment detection module, the body constitution information of western medicine acquired through the body detection module and/ or vision information acquired through the vision module, and determining the body constitution result of the person underdetection according to the received information while providing a corresponding health care conditioning scheme. The intelligent health detection system realizes processed operation, brings convenience for common users to use by themselves, causes no burden in operation, and is applicable to various places such as homes, offices, large communities. Accordingly, the applicable scope of the systemis expanded further.

An inspecting device serves to inspect a solar cell. The inspecting device includes an irradiation part for irradiating with pulsed light and a detection part having a detector for detecting an electromagnetic wave pulse radiated from the solar cell depending on the irradiation with the pulsed light. The detector detects an electric field intensity of the electromagnetic wave pulse depending on irradiation with probe light emitted from a light source (a femtosecond laser) of the pulsed light. Moreover, the inspecting device includes a delay part for delaying a timing for detecting the electromagnetic wave pulse in the detector. Furthermore, the inspecting device includes an electromagnetic wave pulse analysis part for detecting a negative peak of the electric field intensity in a temporal waveform of the electromagnetic wave pulse.

The invention designs a split pulse splicing method based on intra-pulse characteristics, which is mainly used for realizing pulse signal splicing when a detected pulse signal has a frequency domain or time domain split condition in a low signal-to-noise ratio or complex interference electromagnetic environment. The method comprises the following steps: firstly, analyzing a received pulse signal to judge a suspected split pulse, and establishing an intra-pulse characteristic matrix of the pulse; calculating a similarity coefficient of the two suspected split pulses, performing pulse splicing on the two split pulses of which the similarity coefficient exceeds a threshold, and performing intra-pulse analysis processing again to generate a new pulse parameter (PDW); and finally, processing the generated new data to generate a radiation source RDW parameter. According to the method, pulse splicing is carried out on the reconnaissance split pulse signals by utilizing the pulse intra-pulse characteristic parameters, a problem of large-pulse-width and large-bandwidth signal splitting is solved, accurate pulse parameter calculation is realized, the target reconnaissance accuracy and the target recognition rate of the passive radar are effectively improved, and a certain application prospect is possessed.

A method of determining atrial fibrillation includes determining if a patient's pulse beats form an irregular pattern. If so, presence of an irregular pulse is indicated to a patient and, an electrocardiogram is obtained for determining atrial fibrillation. Initially, a pulse is detected at regular time intervals from a first appendage when motionless, using a pulse detector and pulse rhythms from a succession of time intervals, each corresponding to a respective interval of time between successive pulse beats of a sequence of the pulse beats. Then, a second appendage makes contact with an electrically conductive unit, and electrocardiogram signals are detected simultaneously with pulse rhythms while the first appendage is motionless and both appendages are relaxed. The signals are then analyzed to determine whether, in combination, they are indicative of atrial fibrillation. If atrial fibrillation is determined not to be present based on analysis of said ECG, then the pulse analyzer is adjusted to not detect that pulse pattern as irregular.

The invention discloses a cable fault coarse ranging method based on a secondary pulse method. The method comprises the following steps: constructing a power cable fault ranging system based on a LABVIEW virtual instrument development platform, wherein the system mainly comprises signal source equipment, a sensor, a data collection card and a computer; performing fault testing on the fault power cable by using the secondary pulse method firstly, wherein the fault testing comprises the steps that the signal source equipment is added on the power cable, the sensor transmits a signal to the datacollection card, and the data collection card retransmits the signal to the computer for processing, storage and display; and through the secondary pulse analysis method, determining a signal pulse starting time point, performing the fault distance computation, and then performing result display, and overlaying the low-voltage pulse reflecting waveforms successively received in twice through the secondary pulse method, wherein two waveforms have one obvious divergence point, and the divergence point is the reflection waveform point of the fault point. The method has the characteristics of being easy to operate and multifunctional, and an echo graph is easy to explain.

The invention discloses a non-gaussian integer digital multi-channel pulse analyzer of a spectrograph. A pre-amplified signal is directly sampled and subjected to amplitude analysis. Due to the fact that the pre-amplified signal is used as a sampled signal, the rising edge is fast and less than 300ns in general; a falling edge is slow and not greater than 20mus in general; the overlapping opportunity of peak positions of the rising edge is fewer under the condition of high counting rate; the lowest point and the highest point of the rising edge are tracked in novel multi-channel pulse analysis, and the difference value between the highest point and the lowest point is a multi-channel value correspondingly. Compared with the previous analysis method, the effect of baseline noise on the peak position is small; the method for judging peaks adopts continuous signal amplitude rising for three times; a peak is determined when the value is greater than a fixed value, and either noise or a real peak can be easily distinguished.

The invention discloses universal broadband radar signal monitoring equipment. The invention provides a universal broadband radar signal monitoring device which is convenient to carry and erect and can carry out monitoring and feature analysis on radar signals in a complex electromagnetic spectrum space. The device comprises a microwave case, a receiver case and a display control unit, and the microwave case, the receiver case and the display control unit are in communication connection. The microwave case comprises an interferometer receiving antenna array, an omnidirectional antenna, a receiving front end and a down-conversion module, the receiving front end is connected with the interferometer receiving antenna array and the omnidirectional antenna in front, and the receiving front end is connected with the down-conversion module behind; and the display control unit is arranged outside the receiver box and is connected with the signal sorting and main control module. The equipment has an instantaneous full-band and omnibearing rapid spectrum monitoring function, and also has radar signal sorting, inter-pulse analysis and intra-pulse modulation characteristic analysis functions in a certain bandwidth and azimuth.

The invention discloses a real-time complex signal identification and parameter estimation method based on an FPGA (Field Programmable Gate Array), which is used for detecting a pulse signal by utilizing a digital channelization technology. When a pulse is detected, signal intermediate frequency data is subjected to tracking filtering processing and then is input into the in-pulse analysis FPGA module for pipeline processing. Firstly, an intra-pulse analysis module calculates signal amplitude of intermediate frequency data input by running water, solves signal phase and phase ambiguity, and performs sliding window accumulation on the amplitude of the signal to obtain rising time and falling time of the signal; and performing multiple differential operation on the signal phase to obtain a real-time instantaneous frequency. And the change conditions of the instantaneous frequencies at different moments are counted to obtain the carrier frequency, bandwidth, modulation rate, code element change and other characteristics of the signal, and after the pulse ends, the modulation type of the pulse is identified according to various statistical values of the counted characteristics, and the characteristic parameters are output. The pulse modulation type and the characteristic parameters are output in real time and supplemented to conventional PDW description information, FSK signal coding is carried out, and complete PDW information is output.

The invention discloses a human pulse analysis method. A pulse signal of a user is acquired in real time by virtue of an acquisition module, is processed by virtue of a preprocessing module and an A/Dconversion module and then is sent into an ARM system; the ARM system processes and analyzes the received pulse signal, so as to obtain the health status of the user; and the diagnosis result is displayed by virtue of a display module. The human pulse analysis method disclosed by the invention has the advantages that the pulse condition of a user can be accurately acquired, and further processingand analysis are carried out on the basis, so that an accurate health diagnosis result is obtained, and deviation of a distinguishing result due to insufficient experience of a doctor is avoided.

A pulsed-light detection and ranging apparatus comprises an optical detector arranged to generate, when in use, time-series data in response to an optical pulse incident thereupon. A processing resource is also provided and arranged to support a pulse analyser (132). The pulse analyser (132) is arranged to identify (134) an inflection point of a pulse described by the time-series data. The pulse analyser (132) is further arranged to calculate (138) a distance based upon determined inflection point relative to a time axis associated with the time-series data.