SU1115228A1 - Switching device with automatic correction - Google Patents

Abstract

A AUTOMATIC CORRECTION SWITCH containing n switching relays, normally open contacts of which are corresponding input buses, flip contacts are device output buses, normally closed contacts through the first winding of the corresponding control transformers are connected to the output bus, the waiting pulse generator whose input is connected to the first output of the control unit, and the output through the resistors and the second windings of the corresponding control transformers with a common bus device, torus through the third winding of the control transformers is connected to the corresponding inputs of the control unit, characterized in that, in order to expand the functionality, p D triggers and a pulse shaper are introduced, the first input of which is connected to the standby pulse generator, the second input is connected to the second output of the unit control, and the output - with C1-inputs of 1-triggers, C2-INPUTS of which are connected to the third output of the control unit, the information outputs of which with € are device information buses and connections b us with two inputs (A relevant T) -triggerov,) 1 inputs of which are connected to yppavlenIi corresponding S-unit inputs the outputs of which are official tires device, wherein the outputs li-flops are connected to respective control windings switching relays.

Description

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The invention relates to a pulse and measurement technology, in particular to electrical signal commutators, and can be used in automatic control devices.

A switch is known that contains a relay, a control unit, control transformers, a pulse shaper, input and output buses {.

The disadvantage of this switch is limited functionality.

A switch with automatic correction is also known. It contains switching commutating relays whose normally open contacts are corresponding input buses, flip contacts are device output bus, normally closed contacts through the first winding of corresponding control transformers are connected to the output bus, the waiting pulse generator, the input which is connected to the first output of the control unit, and the output through the resistors and the second windings of the corresponding control transformers with common busbar troystva which through third control winding transformer coupled to the respective inputs of the control unit 12}.

The disadvantage of the known switch is limited functionality, i.e. the inability to correct failures of the pulse information on the information buses of the control unit.

The purpose of the invention is to expand the functionality of the device.

The goal is achieved by the fact that in a switch with automatic correction, containing switching relays, normally open contacts are corresponding input buses, flip contacts are device output bus, normally closed contacts are connected to the output bus of the corresponding control transformers impulses whose input is connected to the first output of the control unit, and the output through resistors and the second windings of the corresponding transformers to trolley bus with a common bus device, which via

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the third windings of the control transformers are connected to the corresponding inputs of the control unit; 1L V-triggers and a pulse shaper are entered,

5, the first input of which is connected to the output of the waiting pulse generator, the second input — to the second output of the control unit, and the output — to the C1 inputs of D-flip-flops, C2-INPUTS, which are connected to the third output of the control unit, the informational outputs of which are informational device tires and connected to T) 2-inputs of the corresponding b-triggers, T) 1-inputs of which are connected to the corresponding inputs of the control unit, S-vy5, odes which are service buses of the device, and the outputs of D-flip-flops are connected to the windings

0 control of the respective switching relays.

The drawing shows the functional diagram of the proposed switch.

5 The device contains a standby generator of 1 pulses, n resistors 2, a driver of 3 pulses, n transformers 4 controls, P switching relays 5, control unit 6, n

0 triggers 7, output bus 8, input tires 9, service tires 10 and information buses 11.

The output of the standby generator 1 pulses is connected to the first input of the pulse generator 3 and through the corresponding resistors 2 and the second windings of the control transformers 4 to the common bus of the device, which is connected to the corresponding inputs of the control unit 6 and the Dl inputs of the corresponding T) through the third windings of the transformer 4 -triggers 7,15 2-inputs of which are connected to information buses 11, the first output of the unit 6 pack, the interface is connected to the input of the waiting generator 1 pulses, and the second output - with the second input of the driver 3 pulses, output C1 is connected to the inputs to flip-flops 7, C2-input of which is connected to third

 the output of the control unit 6, the informational IS outputs of which are, respectively, the informational 11 and the service 10 buses of the device, the output bus 8 of which is connected to

5 changeover contacts of switching relays 5 and through the first windings of transformers 4 controls with normally closed contacts of switching 3 relays 5, whose normally open contacts are input buses 9 of the device. The outputs of the T) -trigger 7 are connected to the control windings of the respective switching relays 5. The switch operates as follows. The Control Unit 6 provides information on switching on and off the required switching relays 5v2 inputs as well as the corresponding recording strobe on the C2-Triggers T-triggers 7. D triggers 7 are set to single or zero states respectively, connecting or disconnecting the corresponding switching relays 5. The switched commutating relays 5 open and the disconnected short-circuit the first windings of the transformers 4 warning light. After the time required for reliable switching on (switching off) of switching relay 5, the standby generator of impulses is given a signal to enable generation of control pulses which are fed to the input of the driver 3 pulses and through resistors 2 to the first windings of the corresponding transformers 4 controls. If the switching relays 5 are disconnected, its normally closed contacts short the first winding of the transformer 4 of the control and when a control pulse arrives at its second winding, there is no pulse at the output of the third winding, since all the pulse voltage coming from the standby pulse generator 1 is applied to the resistor 2, and at the output of the third winding of the transformer 4 control there is no impulse. If relay 5 is turned on, the first winding of the control transformer 4 is opened and when a control pulse arrives, a pulse is present at the output of the third winding, indicating the relay is turned on. The relay status information is supplied to the 151 inputs of the B-flip-flops 7 and the control unit 6. The information supplied from the third windings of the transformers 4 is compared in the control unit 6, and if it is 2284 required, the control unit 6 generates a enable signal of the pulse shaper 3 and the C2-D-TprirereB 7 impulses coincide in time with signals from the third windings of transformers 4 control. When ohm, the switch goes into the information correction mode of D-triggers 7, and the signal from the third windings of the control transformers 4 and the pulse generator 3 blocks the control of relay 5. After that, the control unit 6 is turned off and ready to control other external devices, and hold switching relays 5 in the required state are performed by ID triggers 7. If at any time between the correction pulses fails and D-triggers 7 are set to a state other than the specified one, the next pulse projections entering through time, minimal time enable (disable) the switching relays 5, restores the desired state. This is ensured by the fact that during the time between correction pulses the switching relays 5 do not have time to work and at the time of gating the triggers 7 through the C2 inputs with correction pulses at 1) 1 inputs there is information about the required state of T) triggers 7 coming from third windings of transformers 4 control. If the information needs to be changed, the control unit 6 generates a pulse prohibiting signal, then writes new information to the T) triggers 7, and the operation cycle repeats. The technical effect of using the invention is to expand the switch with automatic correction by providing pulsed control of T-triggers on the information and service buses of the device, which allows, by increasing, to correct any number of controlled devices without changing the switch circuit.

Claims (1)

* AUTOMATIC CORRECTOR SWITCH containing η switching relays, normally open contacts of which are the corresponding input buses, changeover contacts are the output bus of the device, normally closed contacts through the first winding of the corresponding control transformers are connected to the output bus, the waiting pulse generator, the input of which is connected to the first the output of the control unit, and the output through the resistors and second windings of the corresponding control transformers with a common device bus, which Through the third windings of the control transformers, it is connected to the corresponding inputs of the control unit, characterized in that, in order to expand the functionality, n D-triggers and a pulse shaper are introduced, the first input of which is connected to the output of the waiting pulse generator, the second input to the second output of the control unit , and the output - with C1-inputs of Ώ-triggers, C2-inputs of which are connected to the third output of the control unit, η of the information outputs of which are information buses of the device and connected to b 2-inputs corresponding D-triggers ,!) the 1-inputs of which are connected to the corresponding inputs of the control unit, the S-outputs of which are service buses of the device, and the outputs of the I-triggers are connected to the control windings of the corresponding switching relays.