SU1260986A1 - Device for checking operation of equipment - Google Patents

Abstract

The invention relates to the field of automation and computer technology, intended to control the operation time or the accumulated resource of a wide class of instruments and machines. can be used to determine the suitability of equipment for testing reliability, as well as to determine the timing of preventive maintenance and repair of equipment. The purpose of the invention is to increase the reliability of the device by monitoring the life of the instrument. The device contains sensors, amplifiers, ,,, multiplication unit, voltage-to-frequency converter, recording signal shaper, AND-NOT elements, power-up pulse shaper, counter, decoder, indicator, memory unit, switch, voltage source, equivalence element, NOT element and pulse generator. 1 il. SL

Description

The invention relates to automation and computing technology and is intended to control the operation time or the accumulated life of a wide class of instruments and machines, and can be used to determine the suitability of equipment when conducting reliability tests, as well as to determine the timing of equipment maintenance and repair.

The purpose of the invention is to increase the reliability of the device by monitoring the spent life of devices, On. The drawing shows a functional diagram of the device.

The device contains sensors I, amplifiers 2, multiplying unit 3, voltage to frequency converter 4, first element, counter 6, shaper 7 power supply pulses, second AND-8 element 8, pulse generator 9, NOT element 10, memory unit 1I TI, decoder 12, indicator 13, switch 14, voltage source 15, equivalence element 16, and shaper 17 of the recording signals.

The device works as follows.

In the initial state, depending on the characteristics of the monitored device, the gain factors of the amplifiers 2 are set. These coefficients determine the contribution of specific parameters of the object to the total value of the flow rate of the device. Object parameters affecting the indicated intensity are recorded using sensors 1. As parameters, for example, current, voltage, temperature, ionizing radiation, etc. can be used. The device is powered from; synchronously with the power of the controlled device. At the moment of switching on the power supply unit, the former 7 sets the counter 6 to the initial state, i.e. at the output of the counter zeros are set. At the moment of the arrival of the leading edge of the pulse from the output of the converter 4, block 11 is recorded 1. The leading edge of the pulse from the output of the converter 4 transfers the counter 6 to the next state. The state of counter 6 corresponds to the spent life of the device. The output of counter 6 is connected to the I2 decoder, the output

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1260986g

which is connected to the indicator 13, which indicates the resource in decimal code. The information is stored in block 1.1 after power is turned off.

When transferring counter 6 to the state corresponding to the last power off, the circuit operates as follows. When the power is turned on, the counter is set to zero. Switch 14 translates block 11 into. Read mode. The input of element 16 is connected to the output of block 11. If one 1 is recorded at a given address of block 11 (corresponding to the state of the counter), then O appears at the output of element 16, which corresponds to 1 at the output of element 10,

Thus, 1 appears at the same input of element 8, and the signal from generator 9 appears at its output. Since the frequency of converter 4 is much lower than the frequency of generator 9 and the output voltage of converter 4 in the initial state corresponds to 1, the output element 5, the signal appears from generator 9. The counter. queries the addresses of block 11 until then. until two O appear at the input of element 16, which corresponds to the final address of the previous power-down. The output of element 16 appears 1, respectively, the output of element 8 appears 1., the switch 14 at this moment transfers — block I1 to the write mode. Next, the counter 6 is operated from converter 4.

When the output of the element of equivalence appears, the shaper 17 of the recording signals that delivers; a signal to one of the inputs of the equivalence element 1.6 and to the input of the memory block 11 of the memory.

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Claims (1)

Invention Formula 50 A device for controlling devices, comprising sensors, a voltage-to-frequency converter, an indicator and a counter, characterized in that, in order to increase the reliability of the device by monitoring the life of the devices, amplifiers are introduced in it, the number of which equals 55; multiplier, AND-NOT elements, pulse generator, NOT element, equivalence element, memory block, decoder, formulated45 Invention Formula A device for controlling devices, comprising sensors, a voltage-to-frequency converter, an indicator and a counter, characterized in that, in order to increase the reliability of the device by monitoring the life of the devices, amplifiers are introduced in it that are equal to the number of sensors; multiplier, AND-NOT elements, pulse generator, NOT element, equivalence element, memory block, decoder, form 31 power pulse, write driver and switch, voltage source, sensor outputs through amplifiers are connected to inputs of the multiplication unit, the output of which is connected to the information input of the write signal generator and the first input of the first AND element through a voltage to frequency converter the output of which is connected to the counter input of the counter, the reset input of which is connected to the driver of the power-up pulses, the output of the counter is connected to the input of the decoder connected to the indicator o rum, and the address input of the memory block, you the stroke of which is connected to the first input of the switch, the second input of which is connected to the source of the reference voltage, the third input to the output of the write signal generator, the first output of the switch is connected to the input. reading the memory block, the second and third inputs of the switch are connected via an equivalence input to the enable input of the write signal generator and the input of the NOT element whose output is connected to the first input of the second AND-NOT element whose output is connected to the second input of the first IS-NOT. Compiled by N.Vaganova Editor L, Pchelinska Tehred M.Hrdanych Corr A.T. 5235/51 Circulation 466 Subscription VNIIPI USSR State Committee for inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab ,, d.4 / 5 Production and printing company, Uzhgorod, ul, Proektna, 4