UA152008U - A method for determining the dynamic parameters of a mobile fire unit operator - Google Patents

Abstract

The object of the utility model is a method for determining the dynamic parameters of a mobile fire unit operator. The method involves generating a test impact in the form of a sinusoidal signal, measuring the values of the phase-frequency characteristic of the mobile fire unit operator at two a priori specified frequencies, incrementing the frequency by a fixed value for each of the a priori specified frequencies, re-measuring the values of the phase-frequency characteristic of the mobile fire unit operator, and using the measurement results to determine the dynamic parameters.

Description

The useful model belongs to the field of medical technology and can be used to control the operator activity of a person who performs the functions of managing a mobile fire apparatus.

There is a known method of determining the dynamic parameters of the operator, which consists in forming a test effect on the operator, comparing the reaction of the operator to this test - effect with the model signal, in case of discrepancy, change the parameters of the model signal until their discrepancy is eliminated. and the parameters of the operator are determined by the parameters of the model signal 11.

The disadvantage of this method of determining the dynamic parameters of the operator is the dependence on the method and technical implementation of the model signal.

The closest analogue is the method of determining the dynamic parameters of the operator of the mobile fire apparatus, which consists in the fact that the test is formed - the impact in the form of a sinusoidal signal, at two a priori specified frequencies, the value of the amplitude-frequency characteristic of the operator of the mobile fire apparatus is measured (using which to determine time constant according to the expression: 2 2 a? more; where - c) i

A(o,) that A(o,) 0) after which, at a frequency whose value is the inverse of this time constant, the value of the phase-frequency characteristic of the operator of the mobile fire apparatus is measured, which is used to determine the delay time of the operator of the mobile fire apparatus according to by the expression: then - -t1 (О.2517 ж f(oyuo)), (2) where A(Fi), A(0shg2) is the value of the amplitude-frequency characteristic of the operator of the mobile fire apparatus at the a priori specified frequencies oii and yu2 of the test signal influence; фФ(шо) is the value of the phase-frequency characteristic of the operator of the mobile fire apparatus at the frequency "o" of the test impact signal; t, ti are the delay time and the time constant of the operator of the mobile fire apparatus.

The disadvantage of this method of determining the dynamic parameters of the operator of the mobile fire apparatus is that for its implementation it is necessary to use the results of measurements of both the amplitude-frequency characteristic and the phase-frequency characteristic of the operator of the mobile fire apparatus. This complicates the implementation of such a method.

The useful model is based on the task of eliminating the need to use the amplitude-frequency characteristic of the operator of the mobile fire apparatus, which simplifies the implementation of yoga.

The task is solved by the fact that in the method of determining the dynamic parameters of the operator of the mobile fire apparatus, which consists in forming a test effect in the form of a sinusoidal signal at two a priori set frequencies and measuring the signals characterizing the reaction of the operator of the mobile fire apparatus to the test effect , which are used to determine its dynamic parameters, additionally for each of the two a priori set frequencies, the value of the phase-frequency characteristic of the operator of the mobile fire apparatus is measured, each of the a priori set frequencies is changed to a fixed value, the value of the phase-frequency characteristic of the operator of the mobile fire apparatus is measured again, and the values of the dynamic parameters of the operator of the mobile fire apparatus are determined from the expressions udo (Фе 1) т (о; нов)Вт В -0 (3) 21" 2 l to - Pe) | -А--й (от) | - А, (4) where di 02 is the a priori set frequency of the sinusoidal signal;

A, -I F(c, with Av)-F(F,)|Av" (B)

And, -| F(u» - Av) - F(va) | To" (B)

In t Ag-A;; (7)

To - a fixed value of the increase in the frequency of the sinusoidal signal; Ф(0ши1), Ф(ошг) - the value of the phase-frequency characteristic of the operator of the mobile fire apparatus at frequencies 0: and

Ffg; фФ(ши ж До), фФ(шг ж До) - the value of the phase-frequency characteristic of the operator of the mobile fire apparatus, respectively, at the frequencies фи ж До and 02 ж До); then, those are the dynamic parameters of the operator of the mobile fire extinguisher.

The fixed value of the increment of a priori given frequencies is chosen under the conditions of i...

To; teityv (8) where is - a small a priori given number.

The method of determining the dynamic parameters of the operator of a mobile fire installation is carried out as follows.

They form a test effect on the operator of a mobile fire apparatus in the form of sinusoidal signals at a priori set frequencies 0: and o".

As a result of the fact that the phase-frequency characteristic fF(sh) of the operator of the mobile fire apparatus has the form f(sh)--oto axidoti, (9) where o is the circular frequency; then, those, are dynamic parameters, then it will take place where(v,) -top- p no | ' to : (10) de(ov) -top- n E from (veti) to (11)

From (10) and (11) it follows that ta - (es | | - ve(e --f Gen | ". bo(og) to to (12) as a result of which it is possible to write t check ne | - Zr(yug) df(o) yo yo y (13)

If we take into account that de(e) Щ- Ї Ф(о, заАо)-Ф(в,) |Lo" -А, to : (14) de(ve) Geo, with lоy) -F(vo) le - A, to ; (15) where Do is a fixed value of the increase in the frequency of the sinusoidal signal, which corresponds to the conditions

Dos "6, i-g. (16) where is - a small a priori given number, then for the dynamic parameter t: according to (13), the equation uva (2-1) t (ой -ог)Ве В -0 ат) where В x А will hold; - Ah. (18)

For the dynamic parameter, then according to (14)--18) it will be -1 - then - - Pe | -A--her (that's tA (19)

З In order to determine the parameters ти and т» at the a priori set frequencies 01 and Ф2, the values of the phase-frequency characteristics of the operator of the mobile fire apparatus are measured, i.e. ф(ши) and Ф(уг), the values of the frequencies of the sinusoidal signal of the test effect are changed to a fixed value Д) (according to (16)) and measure the value of the phase-frequency characteristic of the operator of the mobile fire apparatus, i.e. ф(ши ж Ко) and ф(шг ж Ко). The measurement results are used according to expressions (14), (15), (17)-4(19), the set of which determines the values of dynamic parameters such and such.

To implement this method of determining the dynamic parameters of the operator of the mobile firefighting system, only one of its frequency characteristics is used - the phase-frequency characteristic.

Thus, measuring the values of the phase-frequency characteristic of the operator of the mobile fire apparatus at a priori set frequencies, changing each of these frequencies to a fixed value, the new measurement of the values of the phase-frequency characteristic, as well as the use of mathematical expressions, exclude the need to use the amplitude-frequency characteristic of the operator of the mobile fire apparatus fire installation, which simplifies the definition of its dynamic parameters.

Sources of information: 1. per//rzuspoiodui ia. гы/бооКкЗ/пет/о0/500/720000038/51009.5ПІти 2. Patent of Ukraine Mo 143724, IPK Ab2S 37/00, AbIV 5/16, 2020.

Claims (2)

USEFUL MODEL FORMULA 1. The method of determining the dynamic parameters of the operator of the mobile fire apparatus, which consists in forming a test effect in the form of a sinusoidal signal at two a priori set frequencies and measuring the signals characterizing the reaction of the operator of the mobile fire apparatus to the test effect, which are used to determine of dynamic parameters, which differs in that at each of the two a priori set frequencies the value of the phase-frequency characteristic of the operator of the mobile fire apparatus is measured, each of the a priori set frequencies is changed to a fixed value, the value of the phase-frequency characteristic of the operator of the mobile fire apparatus is measured again, and the values of the dynamic parameters of the operator of the mobile fire station. Its installations are determined by the formulas of the Udtavo fire station. -Ah, (here) | - A, where 2 are the a priori set frequencies of the sinusoidal signal; and F Fi lo)-F F)|Av that A, -| Ф(е» Liu) - Ф(о2) | Lo , B 5 Ag-Ah; To - a fixed value of the increase in the frequency of the sinusoidal signal; Ф(ой), Ф(ог) - the value of the phase-frequency characteristic of the operator of the mobile fire apparatus at frequencies 0: and Ффг; фФ(шняАо), ф(шгвАо) - the value of the phase-frequency characteristic of the operator of the mobile fire apparatus, respectively, at the frequencies ФфижДо and ФожДо); then, those are the dynamic parameters of the operator of the mobile fire extinguisher. 2. The method of determining the dynamic parameters of the operator of the mobile fire apparatus according to claim 1, which differs in that the fixed value of the increment of a priori set frequencies is chosen under the conditions, DLoFo «sv, -i2 where is - a small a priori set number.