SU1688250A1 - Device to input data from the two-way sensors - Google Patents

Abstract

The invention relates to automation and computing and can be used in automatic systems for collecting and processing information. The purpose of the invention is to increase the accuracy of determining the instant of response of the two-position sensor. The device contains a switch, a counter, a decoder, a group of filters, a group of counters, a group of triggers, a group of elements AND, a group of elements OR. The purpose of the invention is achieved by allowing the sensor to determine the response time from the moment the polling starts. 2 Il.

Description

The invention relates to automation and computing and can be used in automatic systems for collecting and processing information.

The aim of the invention is to increase the accuracy of determining the instant of response of the on-off sensors.

Figure 1 shows the structural diagram of the device; in fig. 2 - timing charts of the device.

The device for entering information from the on-off sensors contains 1fig. 1) filter groups 1, a group of elements OR 2, a group of flip-flops 3, a switch, a counter 5, a decoder 6, a group of elements AND 7, a group of counters 8, the inputs and outputs of the device.

The device works as follows.

In the initial state, the registers 3 and the counters 8 are reset by the ps signal to the reset input 10. Counter 5 generates a code that corresponds to the number of the polled trigger 3 and counter 8 and is equal to the number of the polled two-position sensor.

This code simultaneously arrives at the address input of the switch k and the inputs of the decoder 6. From the decoder 6, through the element OR 2, a signal arrives that twists the previous trigger 3 and the counter 8. This eliminates the retransmission of information about the simultaneous triggering of the switch.

If the interrogated sensor did not work, then there is a log at information output 13. Oh, and the output 1 - code 0 ... 00. The computer generates a signal

with

00 00 N5 SP

ABOUT

polling at input 12 and at information outputs 13 and k displays information about the next sensor.

At an arbitrary time t, (Fig. 2), the i-th sensor is triggered, and a log appears at the output of 1st trigger 3. 1. At the same time, the voltage drop from the 1st flip-flop 3 arrives at the i-th input of the element 7, which permits the passage of the next pulse to the i-th counter 8 from the input 12 of the device polling, thus at the time the switch polls the i-ro sensor At information output 13, the i-ro sensor is triggered, and at output I, the number of polling pulses recorded by the i-th counter 8 from the moment tj of the i-sensor to the time (T + t, polling it).

In the future, the MPM specifies the sensor response time according to the formula

t} (T -I- tt) - n -At.

where T is the polling period of the sensor; n is the number of polling pulses,

recorded by the counter; fat - the time interval between

polling pulses.

Claims (1)

Invention Formula Device for entering information from two-position sensors, containing a group of filters, a group of elements OR, a group of triggers, a switch five five 0 0 the torus, the counter, the decoder, the group filter inputs are the device information inputs, the switch outputs are the device information outputs, the counter outputs are connected to the switch switch address inputs and the decoder inputs, and the group filter outputs are connected to the group trigger trigger inputs, the outputs of which are connected to the information inputs of the first group of the switch, the counting input of the counter is the device polling input, the decoder outputs are connected to the first in The signals of the elements OR groups, the outputs of which are connected to the reset inputs of group triggers, the second inputs of the elements OR groups are the device reset input, characterized in that, in order to increase the accuracy of determining the response time of sensor I, a group of elements AND and a group of counters are entered into it , the first inputs / w elements of the AND group are connected to the outputs of the group triggers, the second inputs of the AND elements of the group are connected to the counter input of the counter, the outputs of the elements of the AND group are connected to the counting inputs of the group counters, installation The inputs of the group counters are connected to the outputs of the elements of the OR group, the outputs of the counters of the group are connected to the information inputs of the second group of switches. T- .f-g G.CH   i-t i Ct // 1 III .III III III II f. Illl C-rv 4 "rVMT. 0f) l) or i-ra f erxtrf l "g.O / - / #,