SU1209160A1 - Apparatus for checking operatorъs respiration rate - Google Patents

Description

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The invention relates to medical technology and can be used in engineering and psychological research with the active work of control system operators.

The purpose of the invention is to control the frequency during speech activity.

The drawing shows a block diagram of the device.

The device contains a series-connected sensing element 1, a transducer 2, an amplifier 3, a shaper 4 rectangular pulses, a waiting multivibrator 5 and an integrator 6, as well as a serially connected microphone 7, a low-frequency amplifier 8, a rectifier 9, a horn-10 the element is NOT 11, the output of which is connected to the second input of the element 12 And the output of the last is connected through a counter of 13 pulses to the input of the indicator -14,

The device works as follows.

The sensing element 1., in which quality the thermistor is used, changes the value of its resistance depending on the air flow rate. Converter 2 converts the resistance of the sensing element 1 into a voltage proportional to the air flow rate, which enters the input of amplifier 3, assembled according to the differential amplifier circuit. From the output of amplifier 3, the amplified signal is fed to the former 4 rectangular pulses collected according to the Schmitt trigger circuit „ The generated pulse is differentiated and is fed to the input of the standby multivibrator 5, which generates pulses of the same amplitude and duration, outputted to the input of the integrator 6. After Nij generates voltage zheRedaktor M. Blanar

Compiled by, Skorobogatov

Tehred T. Tulschs Corrector L. Pilipenko

Order 336/6 Circulation 659Subscription

VNIIPI USSR State Committee

for inventions and discoveries 113035, Moscow, Raushskan nab., 4/5

Branch PPP Patent, Uzhgorod, st. Project, 4

09160.

HK & f is proportional to the frequency of the input signal, compares it with the threshold value and gives the signal to the first input of the element 12 when the frequency of the input signal corresponding to the human respiration rate is below normal, i.e. breath hold signal.

Microphone 7 converts sound

10 oscillations of the operator's speech into an electrical signal that is amplified in the low-frequency amplifier 8 and fed to the input of the rectifier 9, from the output of which to the input of the amplifier 15 of the limiter 10, a constant voltage signal proportional to the amplitude of the speech signal is output. Limiting amplifier 10 forms a rectangular voltage pulse.

20 of a certain amplitude, the duration of which corresponds to the duration of the speech signal and which is fed to the input element NOT 11. From the output of the latter in the absence of a signal

25 an electrical signal is inputted at its input to the second input of the element 12.

In the presence of a signal both at the first and at the second input of the element I 12, an impulse is generated from its output

30 to the input of the counter 13 pulses. The code signal corresponding to the number of pulses fed to the input of the counter 13 pulses, i.e. the number of delays in the operator’s breath,

..., not caused by speech, comes from the output of the pulse counter 13 to the input of the indicator 14, which displays the number of breath delays, which characterize the emotional intensity of the operator.

The proposed technical solution makes it possible to evaluate the emotions, ionic operator's intensity by the number of breath delays, from among the ones. retention of breath caused by speech is excluded, which significantly increases the reliability of the control.

Claims (1)

DEVICE FOR CONTROLLING THE OPERATOR RESPIRATORY FREQUENCY, comprising an indicator and a series-connected sensing element, a converter, an amplifier, a rectangular pulse shaper and a waiting multivibrator, the output of which is connected to the integrator input, which means, in order to control the frequency during speech activity, a pulse counter, AND elements, an element NOT, and a microphone, a low-frequency amplifier, a rectifier and a limiter amplifier are introduced into it, and the microphone is connected to series-connected a low-frequency amplifier, a rectifier and a limiter amplifier connected through the element NOT to the first input of the element And, the second input of which is connected to the output of the integrator, and the output of the element And is connected to the input of the pulse counter connected to the input of the oscillator. SU.,., 1209160 eleven