SU1615763A1 - Device for monitoring and registering machine performance - Google Patents

Abstract

A device for instrument making, namely, devices for monitoring and recording the total time worked and the number of inclusions of aircraft engines when operating in different modes. The aim of the invention is to expand the field of application of the device by using it in various modes of operation of aircraft engines. The device contains a generator of 1 pulses, drivers of 3 and 9 pulses, a divider of 2 frequencies, a block of 4 counters, a block of 5 amplifiers, a block of 6 elements And, a block of 7 receiving commands, a block of 8 trigger points and a former of 10 pulses of reset. The device contains three channels 11, 12 and 13 of the recording time of aircraft engines and one channel 14 accounts for the number of launches of aircraft engines. Channels 11, 12 and 13 can be controlled in one of three modes. In the first and second modes, the registration of the operating time of aircraft engines is carried out in real time, and in the third mode, in the equivalent time. 1 il.

Description

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izz :: -Invention relates to instrumentation, namely, devices controlling and recording the total time worked and the number of switching-on of aircraft engines when operating in different modes, and can be used in automated systems of monitoring and recording the status of aircraft engines.

The purpose of the invention is to expand the field of application of the device by using it in various modes of operation of aircraft engines,

The drawing shows the functional diagram of the device.

The circuit contains a generator of 1 pulses, a divider of 2 frequencies, a first forwarder of 3 pulses, a block of 4 counters, a block of 5 amplifiers, a block of 6 electrons. cops And, block 7 receiving commands, block 18 triggers, the second driver 9. | pulses, driver 10 pulses | reset.

; The device contains three channels I 11-13 of registration of the operating time of the first aircraft engine and one channel 14 accounts for the number of launches of aircraft engines. Channels 11–13 can be controlled in one of three modes. In the first and second modes of registration, the aircraft engines work time is carried out in real time, and in the third mode, in the equivalent time.

The device works as follows.

When control commands are received from an external device, the inputs of the command receiving unit 7 in it are matched to the required input levels of unit 6. If control commands are available via channels 11-13 in the first mode (first, fourth and seventh inputs) or in the second mode (the second, fifth, eighth inputs, provided that each channel can work only in one mode, on the first, second, and third outputs of the command receiving unit 7, the signals with logical zero level are received in the corresponding inputs of block 6, dd they are transmitted on a per- vy, second and third outputs. When the signal from the level of logical zero of the first input unit 6, it permits passage of pulses from the first pulse shaper 3 vyhdd corresponding to this block.

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Similarly, control is performed on the second and third inputs of block 6.

The output pulse nepBoi o of the pulse former 3 is formed by passing the signal from the pulse generator 1 through frequency divider 2.

In the case of control of channels 11-13 in the third mode, the pulses arriving at the third, sixth and ninth inputs of the command receiving unit 7 are matched by the voltage levels in this unit and from the fourth, fifth and sixth outputs go to the corresponding inputs of the block 6 where they are transmitted to the first, second and third outputs of block 6.

Thus, any of the channels can operate in one of three modes. At the moment of appearance of a pulse, an amplifier block 5 consisting of four separate power amplifiers, each of which has its own input and output, will occur at any of the three outputs of block 6. In the presence of a pulse at the input of the corresponding amplifier, the amplified power pulse is amplified, which then acts on the counter of the block A of the counters in each channel.

When a control command is received on channel 14 in the first mode (tenth input) or in the second mode (eleventh input), the command receiving unit 7, after matching by voltage levels, outputs a signal to the seventh output, which sets the unit 8 to the active state. With a voltage drop at the output of the block, the second pulse shaper 9 is started, which produces a single pulse with a duration of 62.5 ms. This pulse arrives at the fourth input of the power amplifier 5, which amplifies it in power and delivers the signal to the fourth input of block 4.

Block 8 receives the following signals: the first input from the imaging unit 10 receives the impulse of setting to the initial state, and the second input is the command to control channel 14 and divider 2 to the first input the impulse with a period of 5 ms arrives.

If the pause between signals from the seventh output of the command receiving unit 7 exceeds 0.35 C, then the second driver 9 pulses is prepared

to the registration of the next signal from the seventh output of block 7 receiving coman

If the pause between the active signals at the seventh output of block 7 does not exceed receiving 0.2 seconds, then the signal at the seventh output of block 7 receiving commands is not generated and an pulse at the output of the second generator 9 of the pulses is not generated.

Thus, the device provides a calculation of the total operating time of the aircraft engine and the number of its launches in real and equivalent time.

Claims (1)

Claims An apparatus for monitoring and recording the operation of machines, comprising a gene pulse racer, the first and second pulse formers, a frequency divider and a block of counters, distinguished by the fact that, in order to expand the field of application of the device by using it in various modes of operation of the aircraft engine, , AND block, trigger block, amplifier block, and pulse shaper ND 1615763 reset, the output of which is connected to the first inputs of the trigger block, the first pulse former and the frequency divider, the second input of which is connected to the output of the pulse generator, the output of the frequency divider is connected to the second input of the first pulse former and to the first inputs of the second 0 pulse former and the trigger block, the output of which is connected to the second input of the second pulse shaper, from the first to the sixth outputs of the command receiving block are connected respectively to the first - sixth inputs of the AND block, the outputs of which orogo connected respectively with the first, second and third inputs of amplifier unit, the outputs of which are connected to the inputs of the counter unit, the seventh output of the command receiving unit is connected to the second and third inputs of the trigger unit, the output of the pulse generator is connected to the fourth input of the amplifier unit, the output of the first command generator is connected to the seventh input of the AND unit, the inputs of the command receiving unit are device inputs.