RU1783480C - Device for scanning-type data logging of family of parameters - Google Patents

Abstract

The inventive device contains 1 switch (2), 1 key (3), 2 threshold blocks (4, 5), 3 counters (6, 7, 8), 1 delay element (19), 1 clock generator (11) , 2 elements OR (12, 13), 1 element AND (14), 1 indicator (15). 10-3-4- 7-13-12-9-6-2-3-5-8-14-15, 10-11-12-15, 9-8-13.9-7-15.8- 15.7-14.9-11.6-15. 1 ill.

Description

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The invention relates to automation, measurement and computer technology, in particular to automatic systems for monitoring parameters, and can be used in automated systems for monitoring, safety and environmental pollution of offshore oil and gas objects on the continental shelf.

The purpose of the invention is to increase the speed of parameter polling.

The drawing shows a functional diagram of a device for circulating a group of parameters.

A device for circulating control of a group of parameters comprises a group 1 of information inputs of the device, switch 2, key 3, first 4 and second 5 threshold blocks, first 6, second 7 and third 8 counters, delay element 9, clock generator 10, frequency divider 11, the first 12 and second 13 elements OR, element AND 14 and indicator 15.

The device operates as follows. Switch 2 forms a measuring channel through which the parameter of group 1 of the information inputs of the device through the key 3 is fed to the inputs of threshold blocks 4 and 5. The key 3 actually acts as a modulator and is controlled by a clock generator 10.

The response thresholds of the first threshold block 4 are chosen equal to the operational tolerance for the monitored parameters (lower threshold-NP), the response thresholds of the second threshold block 5 are wider than the response thresholds of block 4 by the maximum possible error introduced into the conversion of the controlled parameter when it passes through the entire measuring circuit ( upper threshold - VP).

A parameter whose value is less than VP but more than NV is subjected to ten times control on block 4, each operation of which is recorded by counter b with a counting module equal to 7. Achieving or exceeding the limit value of the contents in counter 6 corresponds to a good measurement probability of 0, 7, the Normal signal of which at the first input goes to the indicator 15. The same signal through the elements 12 and 13 OR provides the formation of a gating signal at the second input of the indicator 15, which also indicates the address (number) of the control uemogo channel input to the address inputs of the indicator. The same signal from the output of the OR element 13 through the delay element 9 provides a reset of the frequency divider 11 and

counters 6 and 8, as well as switching the counter 7 to the next state.

A parameter value larger than the VP is subjected to ten-fold control by the threshold unit 5, each operation of which is fixed by the counter 8 with the counting module equal to 3. The signal from the output of the end of the counting of the counter 8 through the elements 12 and

13IL AND forms a strobe and fixes the address 0 of the measuring channel on the indicator 15, and

also by its third entrance there is a sign of More than normal. The same signal from the output of the OR element 13 resets the counters 6, 8 and the frequency divider 11 and transfers counter 7 to the next state.

If in a ten-fold cycle of measuring a parameter formed by a frequency divider 11, the contents of the counters 6 and 8 did not reach the limit values, through the element

0 OR 13, a strobe signal is issued with the parameter address fixed (counter 7), and if counter 8 is in zero state and counter 7 is not full through AND element

14 at the fourth input of indicator 15, the status Less than normal is displayed.

A counter state not equal to O indicates a tendency for the controlled parameter to exceed the value of VP.

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Claims (1)

SUMMARY OF THE INVENTION A device for circulating control of a group of parameters, comprising a switch, a key, an indicator, first and second threshold blocks, first and second counters, and a clock generator, the output of which is connected to a control input of a key connected to the inputs of the first and second threshold blocks , output 0 of the first of which is connected to the counting input of the first counter, the overflow output of which is connected to the first information input of the indicator, the information output of the second counter 5 is connected to the address input of the switch, the group of information inputs of which is a group of information inputs of the device used to connect the outputs of the sensors of the parameter group, and the output 0 is connected to the information input of the key, characterized in that, in order to increase the speed of parameter polling, a third counter, first and second elements OR, are introduced into the device, 5 AND element, frequency divider and delay element, the output of the second threshold block is connected to the counting input of the third counter, the overflow output of which is connected to the second information input of the indicator and to the input input of the first element OR. and the output of the zero state and through the delay element - to the counting one - to the first input of the element I. connected to the input of the second counter, reset inputs of the first output with the third informational and third counters and to the reset input of the indicator input, and the second input with the frequency divider associated with the information output of the overflow of the first counter and the 5th input with the output of the clock generator with the second input of the first OR element, output pulses, and the output with the second output of which is connected to the first input of the second OR element, and the second th element OR. the output of the second counter connected to the gate output to the gate input of the indicator keys to the address input of the indicator,