SU547808A1 - Device for receiving remote control commands - Google Patents

Description

The invention relates to telemechanics and is intended to receive telecontrol commands transmitted from the continuous locomotive to an additional one while driving on connected trains, 5

Telecontrol receivers are known to include a frequency receiver, frequency selectors, a decoder, and executive relays for receiving telecontrol commands transmitted from the head 10 locomotive to an additional, for example, an electric locomotive control device located in the middle of the train.

These devices have insufficient reliability in operation caused by the fact that fine tuning of low-frequency filters is necessary when using a parallel dual-frequency code, is complex and causes difficulties in operation.

The closest in technical terms to this is a device for receiving remote control commands by a locomotive containing a frequency receiver, the output of which is connected to the first inputs of the flip-flops, the second inputs of which are combined and connected

to the output of an even pulse selection block. Some of the trigger outputs are connected to the inputs of the decoder, the output of which is connected to the input of the actuator through the instruction storage unit, the other outputs of the triggers are connected via a pulse converter to the first input of the even pulse selection unit.

However, the known device also has insufficient reliability in operation, due to the fact that in the presence of interference on the communication channel, the duration of which is equal to or longer than the signal duration, the executive responds with a false positive; items.

The aim of the invention is to increase the reliability of the device in operation.

This is achieved by inputting the control unit of the output circuits, the protection unit and the control unit of the input circuits, whose input is connected to the outputs of the frequency receiver, the output is connected to the first input of the protection unit and the second input of the allocation unit of even pulses. The output of the protection unit is connected to the corresponding input of the decoder, the other outputs of the flip-flops are connected to the third input of the extraction unit for even-numbered pulses through the control unit of the output circuits and to the second input of the protection unit. The drawing shows a diagram of the device. It contains a frequency receiver 1, triggers 2 (selective), a control unit 3 for input circuits, a pulse converter 4, a block 5 for even pulses, a control unit 6 for output circuits, a protection unit 7, a decoder 8, a command storage unit 9 The executive element 10, the device operates as follows. When transmitting from the head locomotive, the telecontrol command comes in the form of a two frequency parallel code to the input of the frequency receiver 1 of the additional locomotive. The specified code, after conversion in the receiver, triggers the corresponding selective flip-flops 2. At the same outputs of the flip-flops, positive potentials appear that go to the code inputs of the decoder 8 and then to the command storage unit 9. At the same time, negative potentials appear at the other outputs of the selector triggers 2, which, passing through the pulse converter 4, cause the blocking of even pulses 5 to operate. In this case, after each even pulse generated by block 5, all selective triggers 2 are reset to their initial state, which causes the corresponding relays in the actuator 10 to trip. In the case of the breakdown of one of the transistors in the frequency receiver 1 or the appearance of interference at the receiver input, the duration which is longer than the signal, the output of the control unit 3 of the input circuits results in a positive pulse, which is fed to the input of the block 5 of the selection of even pulses. As a result, the pulse appearing at the output of block 5 returns (selective triggers 2 to the initial state. At the same time, a positive potential appears at the output of protection block 7, which is fed to the control input of the decoder 8, as a result of which In the case of the breakdown of one of the transistors of the selective triggers 2 or if one of them is in the working state longer than the time required for receiving the command, the block 6 controls the output circuits and the pulse appearing on its output e, resets the selective triggers 2 to the initial state, which triggers the protection unit 7. The protection unit 7 returns to the initial state each time the next command arrives. Using the device for locomotive remote control will increase the reliability of telemechanical information reception and thereby ensure greater driving safety when driving connected trains. Fo r / y p. of the invention. A device for receiving remote control commands, comprising a frequency receiver, the output of which is connected to with the trigger inputs, the second inputs of which are combined and connected to the output of the even pulse selection unit, one trigger output is connected to the decoder inputs, the output of which is connected to the actuator input through the command storage unit, the other trigger outputs are connected to the first input of the allocation unit of the even element impulses, characterized in that, in order to increase the reliability of the device, an output circuit control unit, a protection unit and an input circuit control unit are inputted into it It is connected to the frequency receiver outputs, the output is connected to the first input of the protection unit and the second input of the even pulse selection unit, the output of the protection unit is connected to the corresponding input of the decoder, other trigger outputs are connected to the third input of the even pulse pulse control unit and the second block input is sewn up.