SU1485220A1 - Pneumatic decoder - Google Patents

Description

The invention relates to the technical means of automation, pre2

assigned for the formation in an arbitrary time sequence of a single discrete signal in one of several output channels with the obligatory zeroing of the previously excited (being in a single state) output. The purpose of the invention is to simplify the design of the decoder. The circuit has a pulsator 4, whose input is connected to the output of the OR 3 element, and the output to the erasing inputs of the flip-flops 2, the installation inputs of which are connected to the inputs of the OR element 3. A much smaller number of elements are used in the decoder. 1 il. with

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The invention relates to the technical means of automation, namely to pneumatic decoders designed to form in an arbitrary time sequence of a single discrete signal in one of several output channels with mandatory zeroing previously excited (located, θ in a single state) output, and can be used to control switches in pneumatic systems of centralized control on the basis of calling indicating 15 (or recording) devices.

The purpose of the invention is to simplify the design of the decoder.

The drawing shows a schematic diagram of the decoder. · 20

The decoder contains pneumatic buttons 1 _< , ..., 1 _p (according to the number of input channels 1 _<} . ·., 1 „and respectively the number of switched circuits), triggers 2., ...

..., 2 _p , the element OR 3 and the impulse is 25 torrent 4. The output of each of the pneumatic buttons P ^,. .., P _p is connected with the installation input of the corresponding trigger 2p ...

..., 2 _L , the output of which is connected to

corresponding to the output channel ^Р 6ЫУ. «'··· Λμχ.« · The codes of the pneumatic buttons are combined by the element OR 3, the output of which through the pulser 4 is connected to the erase inputs of the trigger

7 7

^ζ 4>> · ·> ^dn · 35

The decoder works as follows.

The call of the required _dth switched circuit (addressing) consists in the formation of a single discrete signal Р _{8Ь | Х} ~ 1 ^П Р ^And at the same time, the simultaneous zeroing of all the outputs Р „. “. - = 0 and is performed by pressing the corresponding pneumatic button 1 *.

At the same time, at the output of the element OR 3, a single signal appears, on the leading front of which the _pulser 4 forms a short pulse P _P44 , which sets all the triggers 2, except the 3rd trigger 2h, to the zero state. Accordingly, only on the s ~ m output of the decoder appears and remembers a single address signal

R · . you m ·

Similarly, the decoder works when you click on any other button.

Thus, the transformation (decryption) of the state of the call button to the level of the logic signal at the corresponding output of the device is carried out.

Instead of buttons 1 any shapers of pulse address signals can be used, and their duration should be. several times more pulse duration Pn _{+ <} At the same time, in combined electropneumatic systems (for example, using an electronic keyboard), energy consumption is reduced by tens and hundreds of times.

Claims (1)

Claim A pneumatic descrambler containing an OR element of a pneumatic button, the output of each of which is connected to the installation input of the trigger, and the input with the power channel, the output of each trigger is connected to the corresponding output channel, characterized in that, to simplify the design, it has a pulsator, an input which is connected with the output of the OR element, the output with the erase inputs of the flip-flops, the installation inputs of which are connected to the inputs of the OR element.