SU386384A1 - CONTROL DEVICE - Google Patents

Description

one

The device for control can be used in experimental psychology and for recording time parameters of a human operator, for example, when working at the control panels of models of technological installations, which are controlled by a group of controls according to a certain algorithm in accordance with the incoming signals to the information panel. The device can be used in other areas of science and technology, where there is a need for centralized control and recording of electrical signals of periodic or non-periodic processes from several simultaneously controlled points, the parameters of which can be represented by time intervals.

Devices are known that are designed for centralized control and automatic collection of information from workplaces at the control station, containing counters whose inputs are connected to a reference frequency generator, an input switching unit, a recorder and a perforator.

The proposed device differs from the known ones in order to expand its functional capabilities (recording the temporal characteristics of a human operator when controlling various

technological installations characterizing its psycho-physiological state) a decryption unit, a key element, a collective scheme, a current time counter, a reset circuit, an output coordinating switch, a soft switch, a time delay circuit, and an output matching unit, whose inputs are connected to the outputs of the counters, are entered into it; and the output is connected to the recorder and the output matching switch, the output of which is connected to the perforator, and the inputs to the recorder, the decryption unit and the output of the current-time counter meni connected by the first entrance

with the collecting circuit directly, and the second through the reset circuit and the key element, the third input is connected to the counters and to the reference frequency generator, the output of which is connected to the time circuit

delay, the output of which is connected to the program switch, and the inputs to the counters, to the input switching unit, to the collecting circuit and to the program switch, the inputs of which are connected to

counters. The inputs of the counters are connected to

input switching unit, outputs

which are connected to the decryption unit.

The block diagram of the device is presented in

drawing.

The device contains a reference generator

frequencies /, counters 2, current time counter 3, time delay circuit 4, introductory switching unit 5, query query bus f, program switch 7, interrogation bus 8, collecting circuit 9 (P1LI circuit), decryption unit 10 serial numbers of monitored points of the object, the key element 11, the reset circuit 12 of the current time counter, the output matching unit 13 and the recording unit 14, including the recorder 15, the output matching switch 16 and the perforator 17.

The generator of the reference frequency 1 is connected to the inputs of the counters 2, the current time counter 3 and the time delay circuit 4.

8inputs of counters 2 are also connected to start-stop buses of controlled points of an object (for example, a control panel of a process plant) through the switch contacts (not shown) of the input switching unit 5.

The number of switches in the input switching unit 5 is equal to the number of counters 2 in the device, and the switches are directly connected to the counters.

The query buses of 6 counters are connected to the moves of the corresponding storage cells (not shown in the drawing) of the program switch 7, and the output polling buses of the 8 storage cells are connected in parallel to the controlled inputs of counters 2, time delay circuit 4, a collective circuit

9 and through the contacts of the input switching unit 5 switches to the input of the decryption unit 10. The output of the collecting circuit 9 is connected to the control input of the current time counter 5 and through the key element (toggle switch) 11 is connected to the input of the reset circuit 12 of the current time counter. The output of the time delay circuit 4 is connected to the controllable input of the program switch 7. The code outputs of the counters 2 are connected in parallel to the code inputs of the output matching unit 13. The code outputs of the current time counter 3, the decryption unit 10 and the output matching unit 13 are connected in parallel to the inputs of the registering unit, namely, to the input of the recorder 15 and the output matching switch 16 (the output of the latter is connected to the input of the perforator 17).

The device works as follows.

First, the switches in the input switching unit 5 are set to the appropriate positions, i.e., those points of the object (control panel) are connected to the inputs of counters 2, which are subject to control according to the selected object control algorithm. With the device turned on, the pulses from the reference frequency generator / are fed to the input of the current time counter 3 and through the time delay circuit 4 to the input of the program switch 7. At the same time, the current time counter 3 is produced

a count of the time since the device was turned on (which corresponds to the operator’s start), and the program switch 7 sequentially polls the state of the counters 2, but does not excite them, since there is no information in them.

When a start-pulse arrives from the controlled point of the object through the input switching unit, the counter opens at the input of counter 2 and impulses from the reference frequency generator arrive at its input. From this point on, the measurement of the time interval begins, which corresponds, for example, to the arrival of a command to the operator on

performing a prescribed operation. Similarly, a start-impulse from another controlled point can enter the input of any other counter 2, which will cause the same process in it.

At the moment the operator executes the command, for example, by activating or deactivating the appropriate control, a stop pulse is applied to the input of counter 2 via the input switching unit 5, by means of which the counter input is closed. This ends the measurement of the time interval from the moment the command arrives until the start of its execution. With this from the exit

the counter 2, a pulse will be sent via the query bus 5 to the program switch 7, which “writes this counter to the queue for polling in the corresponding memory cell. In turn, the software registry

the switch 7 interrogates the excited memory cell, from the output of which, via the interrogation bus 8, a pulse arrives at the input of the time delay circuit 4, which blocks the input of the program switch 7 and stops it for the set time. Simultaneously, from the output of the memory cell of the program switch 7, the polling pulse in parallel enters the counter 2, through the collecting circuit 9 - into the counter of the current

time 3 and through the input switching unit 5 to the decryption unit 10, as a result of which the above-mentioned blocks are interrogated. The counting information 2 is fed through the output matching unit 13 to the inputs of the recorder 15 and the output matching switch 16, from which information is output to the perforator / 7. At the same time, the information from the current time counter 3 and the decryption unit 10 is outputted to the recording unit 14, and the program switch 7 is turned on. If the other storage cell in the program switch 7 is energized by the corresponding counter 2, the information output process in the registering unit 14 will be repeated.

If the key element (toggle switch) 11 is in the off position, the typed information (time interval relative to the start of operation of the device) is not reset in the current time counter 3, in