SU1221739A1 - Matrix switching device - Google Patents

Abstract

The invention relates to switching technology. The purpose of the invention is to expand the functionality by increasing the switching capacity without changing the structure of the control elements. The device contains matrices ... with remote switching., Electronic relays and separation diodes, gate driver 2, element 3 AND, optocoupler converters,. ., D-flip-flops ..., decoder 6, keys ..., make contacts 8 for controlling horizontal flaps 9 1 ... and vertical flaps 10 1 ... and ..., resistors, .. and 21, diodes ..., ..., electromagnetic relays ... with make contacts ..,, diodes 17 and 18, control key with S (L to tc oo co

Description

19, optocoupler converter 20 and control bus 22; When using a matrix switch in automatic control systems, functional capabilities are enhanced

: The invention relates to switching technology, in particular to matrix switches of automatic control systems (ACS), and can be used in the development or modernization of such systems.

The purpose of the invention is to enhance the functionality by increasing its switching capacity without changing the structure of the control elements.

The drawing shows the functional diagram of the device.

The matrix switchboard contains matrixes ... with remote switches, electromagnetic relays and separation diodes, a gate former 2, an IZ element, optocouplers ..., D-flip-flops ..., a decoder 6, keys ..., make contacts 8 control horizontal bus bars ... and vertical bus bars ... 1 1 1. .. 1 first and second, respectively, resistors ..., diodes ..., ..., electromagnetic relays ... with locking; contacts ... as well as diodes 17 and 18, control switch 19, optocoupler converter 20, resistor 21 and control bus 22.

The control unit of the closing contacts 8, which generates the control signals in the required sequence, is shown in the drawing by a dotted line, since by its functional purpose it can be part of the ACK control unit or other devices and have different designs.

Management of the state of the remote switches of each of the matrices ... is possible only with options of the latter by using the switch control channel to control additional devices with code control. 1 il.

ten

15

20

25

thirty

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connecting the common point of the diodes ... of the corresponding matrix to the second bus voltage supply through the key 19 corresponding to this matrix. The connection is made in the following sequence.

The contacts 8 for controlling the bus 22 and the corresponding i-th first or second vertical tires are closed.

When contact 8 of bus 22 is closed, a current flows through the input of optocoupler 20, which is the input signal of this converter. This signal is converted to logical 1, which is fed to the inputs of the key 19 and element 3 I.

The key 19 is opened and currents which are the output signals of these converters flow through the inputs of the rptronic converters ... t x of the first vertical busbars. These signals are converted to logical 1, arriving at the inputs of the corresponding D-flip-flops ....

When the control contacts 8 are closed (and the first or second vertical bus connected to the gate driver 2 input via dividing diodes 17 and 18, a pulse 1 signal is generated at the gate generator output, which rises to the second input of element 3 I.

In the presence of signals of logic 1 on the first and second inputs of element 3, at the same time, at the output of the last, a D-flip-flop switching permission signal is formed ..

The signals from the outputs of D-flip-flops ... are fed to the input of the decoder 6.

3

Each combination of signals at the outputs of the D-TpurrepoB ... corresponds to the inclusion of one of the keys ... controlled by the decoder 6.

Thus, when closing the contacts 8 of the control tires 22 and the corresponding i-th first vertical tires, the selected matrix is connected to the second supply voltage bus.

Thereafter, the states of the remote switches (PD) in the connected matrix are controlled: one of the horizontal bus control contacts 8 and the first bus tires of the second vertical bus contacts 8 are closed, which ensures the switching of the PD as in the known devices By this, the horizontal control bus terminal 8 is open, the key 19 is locked, the D-flip-flop enable signal is absent ... and the state of the decoder 6 and the keys ... does not change.

Switching control from one matrix to another is carried out by changing the code generated by D-flip-flops ... if there is a control signal on bus 22. In general, you can connect up to 2 matrix 1 matrixes to control buses

The number of contacts 8 for controlling the horizontal and vertical buses of the matrices does not depend on the number of matrices, since at any time the control is exercised by only one DP group of one of the matrices or the group of optocoupler transducers, i.e. in fact, a significant expansion of the switch capacity is provided without changing the structure of the control devices, the number, levels and power of the control signals.

Thus, the proposed device provides enhanced functionality of the matrix switch by increasing the switching capacity without changing the control device structure, the number of levels and the power of the control signal. In addition, when using the proposed device in the ASC, it is possible to additionally ensure the expansion of the functionality of the ASC by using the channel

five

221739

switch control to control additional code-controlled devices.

5 0 5

ABOUT

5 0 5

five

0

Claims (1)

Invention Formula A matrix switchboard containing a matrix with remote switches, the first terminals of the on and off windings through the corresponding first and second vertical buses and control contacts are connected to the first power supply bus, the second terminals are connected via rows of isolating diodes into the first winding terminals connected via horizontal buses and make contacts to the first power supply bus, and a control bus, characterized in that, in order to expand the functional Opportunities by increasing its switching capacity without changing the structure of control elements; optic transducers of vertical bus signals, D-triggers and RD circuits by the number of first vertical buses, additional decoupling diodes, opto-transducer of the control bus , control key and resistor, gate driver with two separation diodes, element I, decoder, keys according to the number of outputs of the decoder, additional matrices, with the first vertical buses through the inputs The optocoupler transducers, the RD circuit and the control switch connected to the output of the control bus optocoupler signal and the first input of the And element are connected to the second power supply bus, to which, via the closing contacts of the electromagnetic relays of the lines of all matrices, are connected the common leads of the connecting diodes Matrix rows, the outputs of the optocoupler signal transducers of the vertical bus bars are connected to the D inputs of the corresponding D flip-flops, the synchronization inputs of which are connected to the output of the And element, the second in d is connected to the output of the gate to whose inputs two diode connected dividing i-e first and the second vertical bus, the outputs of D-flip-flops 51221739 connected to the corresponding inputs of the relay rows of the corresponding matrix of the decoder, to the outputs of which are under the second power supply bus, are connected to the control inputs of the respective through a resistor and keying keys through which the control signals connected through the sub-5 DB of the optocoupler The secondary busbar terminal coaxial second diodes are the closing contact of this pin of the windings of the electromagnetic busbar.