SU561144A1 - Frequency meter - Google Patents

Description

The invention relates to a measuring technique, can be applied in systems of centralized monitoring and control.

A device for processing information from analog and 4acTOTHTjix patches, comprising a multi-channel input unit, a memory unit, an analog-to-digital converter and an arithmetic unit, is known.

The device is difficult, since in it the signals of frequency sensors are preliminarily

converted to code.

A frequency meter is known comprising an exemplary frequency generator, keys, counter triggers, and a control unit.

The frequency meter cannot measure the output signals from a large number of sensors with large-scale signals and zero frequencies without the use of matching devices.

The purpose of the invention is to simplify the process of measuring signals from various frequency sensors without significantly complicating the design of the frequency meter.

This goal is achieved by introducing a frequency generator containing a control unit

connected with a memory unit, a multichannel input unit, sequentially connected by a counter, a key and a trigger, and with the second and third keys through corresponding triggers, the second pass of the third key being connected to an exemplary frequency generator, and the outputs of the multichannel input unit are connected to a memory unit ti and with the second inputs of the first and second keys, respectively, two additional counters, one inputs of which are connected to the outputs of the memory unit, and others to the outputs of the second and third keys, and the output An additional counter is connected to one of the inputs of the control unit and the second trigger, and the output of the second additional counter is connected to one of the inputs of the first and third triggers.

The block diagram of the frequency meter is shown in the drawing.

The frequency meter consists of counter 1, keys 2-4 with corresponding TpnrrepaMvi 5-7, additional counters 8 (zero counting counter), 9 (time base counter), control unit 10, generator

: Obraztsovoy frequency 11, the memory block of the 12 multichannel input-bpoka 13.

The device works as follows. initial cue count 1, 8, and 9 Finding a vehicle in zero sotsoshtn. When 13 signals arrive at the fleas from frequency duster B of block 13, a signal is generated to control memory 12 and simultaneously a signal equal to the difference between the measured and reference signals, post1, and to the inputs of keys 2 and 3. From memory 12 to the counter zero the new coefficient 8, the number Ng-ot -J is entered corresponding to this sensor NQ; the maximum capacity of the counter 8 is about; is the zero coefficient of the i-th sensor, with 0.; i2lf 2. where is the temperature T1 coefficient of the 1-th sensor,

In the time base counter 9, a number equal to N5 - K - f, where the maxima, is entered, on the capacity of the counter 9.

In block 10, information from memory block 12 is entered. With the + sign from block 10, pulses are emitted for the installation of the flip-flops 5 and 6 into a single 1 slot; e. As a result, keys 2 and 3 are opened, and the rake frequency arrives at counters 1 and 8. When counter 8 goes to zero, a pulse arrives at trigger 6, and this trigger goes to zero, B, as a result, key 3 is closed. At the same time, the impulse from counter 8 arrives at the third input of unit 10. At the same time, from unit U, it returns the command to install thriller 7 into a single nono iceKjre. In result, key 4 is opened, and pulses from the generator are exemplary; 11 begin to arrive at the counter 9. When the counter 9 goes to the zero state, an octulus from its input 1 transfers the trigger 5 and 7 to zero. Keys 2 and 4 e- & kr vz ws, and account

in counter 1 is terminated. The result obtained in bill 1 is equal to the monitored physical parameter being monitored. With a sign - from the control unit 10, an impulse is output to the thrust 6 of groove 6 and 7 to the remote position. Keys 3 and 4 open, and counters 8 and 9 begin to work. When the counter 8 goes to zero, the positive 1. pulse from it sends trigger 6 also to the zero position, and the key 3 closes it. OdioBremonno HN;

the pulse from counter 8 loops to the third input of the control unit 10. In block 1O, it generates 1: pulse from setting trigger 5 to the position one, key 2 opens, and counter- 1 starts working. From counter 9, when traveling, it receives a pulse into the bullet state, and the trigger 5 and 7 triggers are also in the zero state. Keys 2 and 4 are closed, and the counting on counter 1 is terminated. When a signal is received from another sensor, caused by the input unit 13, the counters corresponding to the given sensor are input from the memory 12 to the counters 8 and 9, and the measurement process is repeated.

The use of frequency metering in multichannel centralized control systems eliminates the need for a specialized UM-HX computer that translates frequencies into physical parameters. This allows us to simplify the centralized control systems and ensure their interfacing with automated process control systems, process control systems (CAM systems),

Claims (1)

Invention Formula A frequency meter containing a control unit associated with a memory unit, a multichannel input1g unit, sequentially connected by a counter, jcTio4OM and a trigger, with the second and third keys through the corresponding triggers, the second input of the third key connected to the generator of the reference frequency, and the outputs of the multichannel input unit They are connected to the memory side and to the top-up and to the inputs of the first and second ksyuy, respectively, about the fact that, in order to simplify the measurement process, it is equipped with two additional counters s, some inputs of which are connected to the outputs of the memory block, and others to the outputs of the second and third keys, the output of the first additional counter connected to one of the inputs of the control unit and the second trigger, and the output of the second additional counter to the one of inputs of the first and third triggers. IT