JP2013172763A5

JP2013172763A5 -

Info

Publication number: JP2013172763A5
Application number: JP2012037519A
Authority: JP
Filing date: 2012-02-23
Publication date: 2015-04-09
Anticipated expiration: 2032-02-23

Claims

A pulse wave detecting section for detecting a pulse wave sensor signals,
A pulsation information calculation unit that calculates pulsation information based on a pulse wave detection signal that is a signal after the DC component cut of the pulse wave sensor signal ;
And the signal value at the first timing before Kimyakuha sensor signal, wherein the first timing based on the difference information between the signal value before Kimyakuha sensor signal at different second timing, the pulse A signal processing unit having a noise detection unit for detecting noise of the wave sensor signal ;
Including
The pulsation information calculator is
The pulsation detecting device, wherein the pulsation information is calculated based on a detection result of the noise in the noise detection unit.

In claim 1,
The noise detector is
The signal value at the first timing, a difference value between the signal value at the second timing is obtained as the difference information, based on the result of comparison between the difference value and a given threshold value, A pulsation detecting device for detecting the noise.

In claim 1 or 2,
The noise detector is
And the signal value at the first timing, the process of comparison between a signal value at the second timing, and obtains the signal value change direction before Kimyakuha sensor signal as the difference information, in a given period The pulsation detecting device, wherein when the signal value change direction is the same direction, it is determined that the noise is detected.

In claim 1,
The noise detector is
Obtaining a difference value between the signal value at the first timing and the signal value at the second timing as the difference information;
If the difference value is greater than a given threshold, determine that the noise has been detected;
Even if the difference value is less than or equal to a given threshold value, it is determined that the noise is detected if the sign of the difference value is the same code in a given period. Detection device.

In claim 3 or 4,
The noise detector is
A pulsation detecting apparatus, characterized in that it is determined whether or not the noise is detected in the given period set in accordance with a length of a pulsation cycle.

In any one of Claims 1 thru | or 5,
The signal processing unit
A waveform shaping unit that performs waveform shaping processing of the pulse wave detection signal in a noise detection period set based on a noise detection timing that is a timing at which the noise is detected by the noise detection unit;
The pulsation information calculator is
The pulsation detecting device, wherein the pulsation information is calculated based on the pulse wave detection signal after the waveform shaping processing by the waveform shaping unit.

In claim 6,
The waveform shaping unit
The pulsation detecting device, wherein the processing for reducing the amplitude of the pulse wave detection signal in the noise detection period is performed as the waveform shaping processing.

In claim 6,
The waveform shaping unit
The pulsation detecting device characterized in that processing for replacing the pulse wave detection signal in the noise detection period with another signal is performed as the waveform shaping processing.

In any of claims 6 to 8,
The waveform shaping unit
The pulsation detecting device, wherein the waveform shaping process of the pulse wave detection signal is performed in the noise detection period determined by a start timing and an end timing set based on the noise detection timing.

In any one of Claims 1 thru | or 9,
The noise detector is
When the value of the body motion detection signal from the body motion sensor is larger than a given threshold, the noise is not detected even when it is determined that the noise is detected based on the difference information. A pulsation detecting device characterized by determining.

The pulsation detecting device according to any one of claims 1 to 10,
A pulse wave sensor; and the pulse wave detection unit that outputs a signal based on the pulse wave sensor signal from the pulse wave sensor;
Including
The pulse wave detector
Said pulse wave sensor signal before the high-pass filtering, and outputs the noise detection section as a pre Kimyakuha sensor signals, the pulse wave sensor signal after the high-pass filtering, DC component cut of the pulse wave sensor signals An electronic apparatus that outputs the pulse wave detection signal as a later signal .

A pulse wave detecting section for detecting a pulse wave sensor signals,
A pulsation information calculation unit that calculates pulsation information based on a pulse wave detection signal that is a signal after the DC component cut of the pulse wave sensor signal ;
And the signal value at the first timing before Kimyakuha sensor signal, wherein the first timing based on the difference information between the signal value before Kimyakuha sensor signal at different second timing, the pulse As a signal processing unit having a noise detection unit for detecting noise of the wave sensor signal ,
Make the computer work,
The pulsation information calculator is
The program which calculates the pulsation information based on the detection result of the noise in the noise detection part.