Heart sound intelligent monitoring device for vehicle active safety
A technology of intelligent monitoring and active safety, which is applied in the direction of stethoscopes, etc., to reduce risks, enhance reliability, and improve reliability
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[0018] Below in conjunction with accompanying drawing, the present invention is further elaborated:
[0019] like figure 1 As shown, the present invention is a heart sound monitoring device, which is arranged on a car seat belt 1, and a heart sound pickup probe array 2 composed of more than four heart sound pickup probes is installed in a deformable oval soundproof cavity 3. . The heart sound pickup probe is made of piezoelectric material and has a built-in operational amplifier. The functions of the array form mainly include the following two aspects: on the one hand, the contact area between the probe and the driver's heart area is increased, and the sensitivity, resolution and signal-to-noise ratio of the sensor are further enhanced; on the other hand, due to the difference between sampling space and time, The rear end can reduce the influence caused by position change or movement through the fusion algorithm; the heart sound pickup probe array 2 is placed in a deformable...
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