SU1705848A1 - Device for checking state of object - Google Patents

Abstract

The invention relates to a signaling technique and can be used to control technological processes under conditions of increased intensity of electromagnetic interference. The purpose of the invention is to increase the functional reliability of the device — achieved by the fact that the device containing the element OR 1, the signaling channels 2, each of which contains a sensor 3. a comparator 8, a power amplifier 10, and a signaling device 11, generates 4 pulses in each signaling channel shaper 5 short pulses, setpoint 9, reversible counter 7, register 6 and elements 12, 13. The choice of the level of comparing of the capacitor 8 and the frequency of the pulses of the pulse generator 4 ensures optimum noise immunity of devices a and reliability of determining the state of sensor 3. 3 Il. Ј I 4 About 00 00 00

Description

The invention relates to a signaling technique and can be used to control technological processes under conditions of increased intensity of electromagnetic interference.

The aim of the invention is to increase the functional reliability of the facility.

i (a phi: .1 is a functional diagram of the device; cfmg.2 are time diagrams explaining the pr-o-lu device; pa fig.3 are the signal diagrams at the outputs of a short pulse generator.

A device contains an elegant mg OR 1 channels 2 it is on, 1i., Parts, each of which contains a sensor 3. a generator of L pulses. shaper 5 v .with pulses, register G p vs: - .nk1 gchegchik 7 comparator

ZZDa; . W O OLIGEL 10 POWER, a signaling device And and. Zp cops And 12, 13.

Figure 2 n diagram 14 presents: (g t-th sensor 3; the diagram g- - nl r lixo.a generator 4 IMPULSSV: h a di, -: gg.: Hh H: (respectively m 1 - 3 For - Irooatel 5 short names on diagram 19 - on the summing fault of the reversible counter 7; on diagram 20 — n.-: te - register code 6: on iM-rpaMV. J. readout input to the RP of Yunchgo, h 7; In Diagram 22, the contents of .- counter 7; in Diagram 2: o: i (fj "LiMoe adatch a 9; in diagram 24 at the output of the comparator 8.

Fig 3 on diagrams 25 - 28 shows the signal diagrams for the output of the generator toro, respectively. pulses and at first. PVOQOM and the third conclusion of the driver to O ro g to and. We hope you are

Device. The value is as follows.

The signal from it / ode sensor 2 in the form of pen. 1 or logical 0, depending on the state of the sensor 3. It enters the second input of the element I) 2, the first so opo postulates the i-ir ..; iynt -. (the first output of the MIROED form forms G .a. ipoii of their impulses.

Lop1ch; The high voltage of the signal at the output of the element I) 2, uniquely determines the state of the sensor 3 or the presence of hmm. the opposite state of the sensor 3, is recorded in register 6 for each active differential pulse from the secondary output of the mop-driver 5 short pulses, op.

Spruce;: Ostp IO sensor 3 or interference identify to: - :. 1 then (for each gating pulse of the input function II and II for each gating pulse with iiO iBr-o formarssat LL output of 5 corrosive pulses; it compares with 1. x.the second add

reversible counter 7; If the state of sensor 2 or interference is identified as O, the output state of element 12 remains static, which does not increase the content of reversible counter 7, but is recorded in register 6 by a clock pulse from the second output of the driver 5.

Thus, in the reversible counter 1, the accumulation of G, corresponding to the state of sensor 3 or interference, passes to the state of dynamic equilibrium of the reversible counter 7. equal to the number of register accumulation bits 6. When the register b is full to the subtracting return of the reversible counter 7 s the output of the element And 13 receives the same number of pulses as on its summing input. which ensures the constancy of the contents of the reversible counter 7.

When the sensor 3 or noise goes into the state O, the arrival of pulses on the gumming reversing estimator

7 is stopped, and the input of pulses from the output of element I 13 to the subtracting its input continues until the register G is zeroed, which coincides with the time of calculation of the last 1 in the reversible counter ;; T: 7

Comparator Comparison Tutorial

8 is set by the gauge and is set depending on the properties of the sensor 3. the speed of its operation and the resolution method: GHG of the character and length of transients it. and also depending on the nature, duration and intensity of noise in the sensor circuit 3.

By choosing the level of the compriropanp rp, - ps / .o.qs, following the pulse of the generator 4, the optimal conditions for increasing the noise-resistant device are determined. gua and reliability of the sensor 3 determination.

If the number formed in the .HPH IM counter 7 is large: set by the date of the IR -:: - 1 :) then at the output of the comparator 8 a signal is generated that identifies the state of the sensor 3 as 1. If it is equal to or less setpoint, ike 9, then at the output of the Komi speaker 8, a signal is generated corresponding to the state O of sensor 3. From the output of the comparator 8, the signal is received to the amplifier 0 and then to the input of the signaling device 11. the corresponding signal about the state of sensor 3 of this channel 2 signaling. C, at; x-jfls comparator 8 signal; Stopping on the element OR 1, the output signal nt of which can be sig-el-gt; for o6o6tLi. alarms.

Claims (1)

Invention Formula A device for monitoring the state of an object, which contains an OR element, the output of which is the output of the device, and signaling channels, each of which contains a sensor, a comparator, and an ivomt-r.iCTH amplifier, the output of which is connected to the input g of a lysator, which In order to increase the functional capacity, P, each signaling channel is inputted by a pulse generator, a shaper of short pulses, a backdraft, a reversible counter, a register, and the first and second elements AND, and in each signaling channel, the output of the generator is connected to the input m short pulse generator, the first, second and third outputs of which are connected respectively to the first input of the first element And, with the clock input of the register and the first input of the second element And, the output of the first element And connected to the information input of the register and the summing input of the reversible counter, output The second element And is connected to the subtractive input of the reversible counter, the output of which is connected to the first input of the comparator, the output of which is connected to the input of the power amplifier, the output of the register is connected to the second input the second element I. the output of the setter is connected to the second input of the comparator, the output of the sensor is connected to the second input of the first element AND, the output of the comparator of each signaling channel is connected to the corresponding input of the element OR.  | shsh1zh: L :::: ..: z :::: :: ;; ::: g ::::: :::: 1shish shg, 1 Ш1Ш Ш1Л1 JJliiL 11 Lii-JlLli. .1 .... 1Ш1 ... 1 1L J.-LllliJ.LLlIU and 1LU1U .11 .Ill LL11 ..... J Jll.il J1 LI. L 111. I -, tiJ JIULLL ..... 1J.-Ul-J. ... J 1 ..... Li. 20 .j ::: rz: i. sewed ... g / .- - JJ-l- J LLLU JJ GI P n / 4 ™, .;.:. 24 . 2 3