SU378864A1 - DEVICE FOR AUTOMATIC CONTROL - Google Patents

Description

one

The invention relates to the field of instrumentation technology and can be used in the construction of automatic control systems for a wide class of objects.

A device for automatic control is known, comprising switches connected to control objects, converters, stimulating generators, their signals, and an information processing unit associated with output indicators.

However, this device does not allow simultaneous testing of two or more control objects.

The purpose of the invention is to improve the performance of the device while monitoring several objects. To do this, the proposed device additionally introduces sensors for the presence of control objects, a priority block and AND and OR circuits, the inputs of the priority block are connected to sensors for controlling objects and the control end output of the next object of the information processing block, and the outputs to the inputs of the information processing block and one input of the “And” circuit groups, the number of which is equal to the number of simultaneously monitored control objects, and the number of circuits in the group - the number of control objects connected to the device, the second input of which in coupled with the control information processing unit outputs and outputs via "OR circuits connected to respective inputs of the gate switches. In the drawing, a block diagram of a device for automatic control.

It contains control objects 1 to 2, switches 3 and 4, converter 5, generators 6 stimulating signals, block

processing information 7, output indicators 8, sensors 9 and 10 of the presence of control objects, priority block 11, schemes "AND 12-15 and schemes" OR 16 and 17. Control objects /, 2 are prepared

operators for testing: they are connected by connectors to switches 3, 4, installed on stands, etc. As operators work independently of each other, signals from object presence sensors /, 2 at control 9, 10 arrive at the input buses of the unit priorities // at random times. Suppose that all control outputs of the IB groups of the priority block are not excited. When entering from one

From the sensors of the presence of control objects 9, 10 of the signal to the input of the priority block 11 in one group of control outputs, a bus is excited corresponding to the number of this sensor.

Further, when a priority signal 11 arrives at the input from some other sensor of the presence of control objects 9, 10, the bus corresponding to its number is excited in another group of control outputs. When signals are received from two or more sensors of the presence of control objects 9, 10, the corresponding control outputs in groups are simultaneously excited according to the stated priority conditions in the priority block //. Thus, in each group, one outlet is excited. Later on, when signals are received from the sensors of the presence of objects of control 9, 10, they are memorized. Due to the fact that the operator takes a certain amount of time to connect the monitoring object, 2 to the device, the operator, the number of connected monitoring objects 1, 2 is chosen more than the number of simultaneously controlled objects.

When the control output of the first group of priority block 11 is excited, a signal arrives at the first information output in the information processing unit 7 and the monitoring process begins. The information processing unit 7 on the first control output generates a signal to turn on the switch 3, 4, the number of which corresponds to the number of the excited control output of the first group of priority block //. Switching on is achieved by matching the signal from the excited control output of the first group of priority block 11 and the first control output of information processing unit 7. After the AND 12-15 circuits, the signal through the OR 16-17 assembly circuits goes to the control panel of the corresponding switch 3, 4 The control process of the first selected object 1, 2 is going on. The corresponding switch 3, 4 connects the generators of the stimulating signals 6 to the control objects 1, 2, and the response signals from the control objects /, 2 through converters 5 or directly connected to the measuring inputs of information processing unit 7. Using pauses in the process of monitoring the first object (for example, the acceleration time of electric motors, heating of lamps, etc.) information processing unit 7 when there is a signal at the second information output of priority block 11, turns on the switch 3, 4 (instead of the first one) selected by the priority device by issuing a signal at the second control output. The program of operation of the information processing device 7 provides control of objects with a shift in time in accordance with their verification diagrams. 5 Thus, each object is monitored during pauses during the monitoring of all other objects that are connected or are waiting for their turn. At the end of checking one of the monitored objects /, 2, the information processing unit 7 issues to the priority block 11 a signal that the monitoring of the next object 1, .2 has been completed. This signal is used to reset the elements of the corresponding group of control outputs of priority block 11, after which a queue shift occurs. The numbers of excited outputs from groups with large order numbers are transferred to groups with a smaller order number, freeing

0 last ground for the object of control 1, 2, in the queue.

The introduction of priority block 11 gives the new positive effect that one block of information processing 7 and one set of stimulating generators 6 and converters 5 control several objects 1, 2 simultaneously. In this case, the information processing unit 7 operates according to a rigid program, regardless of

0 time to attach control objects.

Subject invention

Automatic control device

5 comprising switches connected to control objects, converters, stimulating signal generators, and an information processing unit associated with output indicators characterized in

0 that, in order to increase productivity while simultaneously monitoring several objects, sensors of the presence of objects of control, a priority block and AND and OR schemes are added to it, and the inputs

5 of the priority module are connected to the sensors for the presence of control objects and the output of the monitoring of the next object of the information processing unit, and the outputs are connected to the inputs of the information processing unit and one input of the AND circuit groups, the second inputs of which are connected to the control outputs of the information processing unit, the outputs through the OR circuit are connected to the corresponding control inputs of the switches.