SU1474713A1 - Telecontrolling command generator - Google Patents

Abstract

The invention relates to telecommunications engineering and can be used to generate telecontrol signals. The purpose of the invention is to increase the functional reliability and noise immunity of the operation of the device when assigning a priority channel. The device contains the first and second decoders, the first and second elements are NOT, the element And, the key, the first and second switches, the encoder. The device allows generating a binary code from the incoming command on the first or second channel. A feature of the device is the possibility of simultaneously receiving commands via two channels of forming a command code from a priority channel. This allows to increase the noise immunity of the device during the formation of remote control commands. 1 il.

Description

(21) 4279106 / 24-24

(22) 07.06.87

(46) 04.23.89. Bul Number 15

(72) V.M. Kuznetsov and L.S. Popova

(53) 621.398 (088.8)

(56) USSR author's certificate

(R 1065819, Cl. G 08 C 25/00, 1984.

USSR Author's Certificate No. 1116552, cl. H 04 L 25/40, 1984.

(54) DEVICE FOR FORMING TELECOMMUNICATION COMMANDS

(57) The invention relates to a telecommunications technique and can be used to form telecontrol signals. The purpose of the invention is to increase the functional reliability

and noise immunity of the device when assigning a priority channel. The device contains the first and second decoders, the first and second elements of the HF, the element And key, the first and second switches, the encoder. The device allows generating a binary code from the incoming command on the first or second channel. A feature of the device is the possibility of simultaneously receiving commands through two channels of forming the command code received from the priority channel. This makes it possible to increase the noise immunity of the device when calculating the telecontrol commands. 1 il.

AND

one

The invention relates to telecommunications engineering and can be used to form remote control commands.

The purpose of the invention is to increase the functional reliability and noise immunity of the device when assigning a priority channel.

The drawing shows a block diagram of the device.

The device for generating telecontrol commands contains the first element NOT 1, the first decoder 2, the first switch 3, the encoder 4, the element 5, the second element NOT 6, the key 7, the second switch 8, the second decoder 9.

The second switch 8 does not increase the volume of the equipment, since from the standpoint of functional construction it is part of the switching field of the switch used in the known device. In general, switches 3 and 8 are different from the switch in the known device by the division of control inputs.

The device works as follows.

At the inputs of the first and second decoders commands are missing. In the absence of commands in the first and second channels at the inputs l - 6 of the first decoder 2 and the second decoder 9 there is a level O. At the same time,

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the control outputs of both decoders form level 1. The first element is NOT 1 and the second element is NOT 6 inverts the signals and then at the control input of the first switch 3, at the first and second inputs of the element 5 and at the input of the key 7, the signal O is generated. input key 7 from the output element AND 5 O

also

O arrives, therefore, a zero level is also formed at the control input of the second switch 8

The zero levels at the control input of the first switch 3 and at the control input of the second switch 8 are set at all their outputs, and therefore at the corresponding inputs of the encoder 4, regardless of the state of the information inputs of switches 3 and 8.

The command arrives at the inputs of the first decoder 2, and “there is no command for the inputs of the second decoder 9. At the control output of the first decoder 2, a level 0 is formed, which is inverted by the first element NOT 1 and enters as 1 at the first input of the element 5, as well as at the control input of the first switch 3, which switches all information outputs of the first decoder 2 to the corresponding encoder inputs 4.

At the same time, level 1 remains at the control output of the second decoder 9, since there is no command at the output. The second element NOT 6 inverts the signal and generates the second input of the element 5, the information input of the key 7, and hence the control input of the second switch 8, level O. Thus, the binary command code is received at the outputs of the encoder 4 on the first channel.

At the inputs of the first decoder 2 command is missing, and the inputs of the second decoder 9 receives a command from the second channel. At the control input of the first decoder 2, form a level 1, since there is no command at its inputs. This signal, in the form O from the output of the first element NOT 1, is fed to the control input of the first switch 3 and to the first input of the element 5.

At the control output of the second decoder 9, to the input of which from

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the second channel received a command, the level O is formed. Then, from the output of the second element NOT 6, the second input of element 5 and the information input of key 7 receives 1, since at this moment only one 1 is present at the inputs of element 5, then the control input of the key 7 is absent, and from the output of the key 7 to the control input of the second switch 8 is received 1. The second switch 8 switches the information outputs of the second decoder 9 to the corresponding inputs of the encoder 4, Pulse; Thus, at the outputs of the encoder 4, the binary code of the command entered the device via the second channel is generated. /

At the inputs of the first 2 and second 9 decoders simultaneously commands are received from the corresponding channels. At the control outputs of the decoders, the O level is formed. From the output of the first element NOT 1, the inverted signal in the form 1 is fed to the control input of the first switch 3 and to the first input of the element AND 5. From the output of the second element NOT 6 1 it goes to the second input of the element 5 and to the information input of the key 7. Simultaneous arrival of 1 to the inputs of the element And 5 causes the formation at the control input of the key 7 of the signal 1 blocking the operation of the second switch 8. Thus, the corresponding information inputs of the first group of inputs to EPA 4 are switched data outputs of only the first decoder 2, the inputs of which receives the command from the priority of the first channel.

If more than one remote control command arrives at the decoder, i.e. On its n-1 inputs there is more than one 1, then on its 2 (where to 0,1 ,, .., p-2) O outputs are formed, and the wrong code does not arrive at the inputs to (cer 4, i.e. Only when a single command arrives (1 on one of the inputs 1-6), level 1 occurs on one of 2k (where O, 1,.,., t-2) of the outputs of one of the decoder 2 or 9, corresponding to the position code this command.

514

Claims (1)

Invention Formula The device for generating remote control commands containing the first and second decoders, the first switch and the encoder, the outputs of which are information outputs of the device, the information inputs of the first and second decoders are respectively inputs of the first and second channels of the device, the information outputs of the first decoder are connected through the first switch to information inputs of the first group of encoder inputs, characterized in that, in order to increase the functional reliability and noise immunity of the device , two elements are entered into it NOT, element ti 136 And, the key, the second switch, the information outputs of the second decoder through the second switch are connected to the information inputs of the second group of inputs of the encoder, the control outputs of the first and second decoders through the same elements are NOT connected to the same inputs of the And element, the output of the first element is NOT connected to the control the input of the first switch, the output of the second element is NOT connected to the information input of the key, the output of which is connected to the control input of the second switch, the output of the element I is connected to the control input key ohm, clock inputs of the first and second decoders, switches and encoder are combined and | are the clock inputs of the device