4 results about "Normal pulses" patented technology

The present application relates to the technical field of medical devices, in particular to an electronic non-affinity friction nanogenerator and a heart disease detector and a preparation method thereof. The generator comprises a first friction layer, a second friction layer, a first electrode and a second electrode; by adjusting the composition of the same material, the electron gain and loss ability of the material is changed, the first friction layer and the second friction layer are made of the same material, and the composition of the material used by the first friction layer and the second friction layer is different, so that the electron gain and loss ability of the first friction layer and the second friction layer is different, thereby realizing electronic non-affinity friction nanogeneration, using the high sensitivity to pressure to extract the characteristic signal points of the pulse wave, realizing the function of self-powered single-point detection of human heart rate, diastolic pressure and systolic pressure; in addition, it is sensitive and high, and can detect the subtle changes of the pulse wave, and since the pulse wave of a patient with heart disease is different from the normal pulse wave, it can be applied to the preparation of a heart disease detector.

The application discloses a kind of intelligent portable pulse wave determination watches, it is related to pulse wave determination technical field, to solve the problem of not enough convenient when determining pulse and the problem of inaccurate measurement result.The intelligent portable pulse wave determination watch, including dial and pulse sensor, the dial upper end is with upper band, the inner wall of upper band is provided with clamping block, the dial bottom end is connected with lower band one end, a plurality of clamping holes are opened in lower band, three groups of sensors are used different measurement methods to measure pulse, three groups of collected pulse measurement data can be obtained after measurement, so that data acquisition is no longer single, through the calculation of later stage, pulse data is more accurate, different data threshold is divided into multiple groups, after division, the data is divided into different levels according to grade alarm module, alarm sound can be spread out through loudspeaker, normal pulse data can be displayed in electronic display screen.

The application discloses a protection method of a dynamic test circuit based on shunt energy accumulation, and comprises the following steps: experimentally calibrating key model parameters; synchronously collecting multiple physical quantities; real-time temperature correction and current conversion of shunt resistance; parallel calculation of shunt energy accumulation; adaptive generation of dynamic energy threshold; determination of whether to perform narrow pulse trigger shutdown after threshold comparison; event record reporting and conditional reset. The protection system of the dynamic test circuit based on shunt energy accumulation comprises an operation control unit, which is connected with an execution driving unit, a signal sensing unit and a state feedback unit respectively, and the execution driving unit is connected with a measured device. The protection method and system of the dynamic test circuit based on shunt energy accumulation take shunt energy accumulation as a protection criterion and introduce temperature compensation and heat dissipation items, so that the false protection probability caused by normal pulse current in dynamic test can be significantly reduced.

This invention discloses an oscilloscope-based anti-interference algorithm, a computer, and a storage medium based on adaptive threshold and waveform feature matching. The oscilloscope-based anti-interference algorithm includes: if a signal segment simultaneously satisfies the following conditions: its pulse period is higher than a period target threshold, its pulse amplitude is higher than an amplitude target threshold, and its waveform similarity to a standard pulse waveform template is lower than a similarity target threshold, then the signal segment is identified as an interference signal segment; and the interference signal segment is removed and filled with the average value of the normal pulse signal adjacent to the interference signal segment; wherein the period target threshold, the amplitude target threshold, and the similarity target threshold are all dynamic. The beneficial effect of this invention is that it avoids measurement deviations caused by the user speaking or slight upper arm movements, and has a better anti-interference effect.