SU1043838A1 - Multichannel device for switching-on stand-by radio stations - Google Patents

Abstract

MULTICHANNEL DEVICE-, STVO FOR INCLUSION OF RESERVE RADIO STOP, containing in each -. the main channel is the main radio station. the output of which is connected to the input of the control unit, the outputs of all the control units are connected to the inputs of the OR element and the address inputs of the code memory, setting, input, and reading. which is connected to the output of the OR element, and the bit outputs to the inputs of the register, and in each backup channel - serially connected deshi (} rator, electrically frequency tuning unit and a backup radio station, characterized in that , it contains in each backup channel the first, second, third AND elements and the trigger, pr - -. My output of which is connected to the second inputs of the first and third AND elements, the inverse output to the second input of the second And element, and the single input from exit The second element I, the first input i of which is connected to the first input of the first element I, the output of the third element (L and I connected to the input of the decoder, and. the first input - to the register output, the first input of the first element I connected to the output of the first element And the previous channel , and the first input of the first element AND the first backup channel is connected to the output of the OR element. 4 CO 00 with X

Description

. The invention relates to radio engineering and is intended for automatic reservation of radio stations of multichannel systems. A multichannel device for switching on backup radio stations is known, containing frequency control code encoders: r, frequency code de-digitizers, electrogyptic tuning blocks — controlled switch 1J. The disadvantage of this device is the possibility of its use only for radio stations having a code electronic frequency tuning, otherwise it is necessary to replace the pathogens present in the radio station, which leads to a sharp rise in the cost of the system. . . The closest to the invention to the technical essence is a lot. a radio station backup device containing main radio stations with control units, an IL element of the memory of the tuning codes, a register, a descrambler, an electronic frequency tuning unit, a backup radio station / A disadvantage of the known device is the possibility of using only one of the backup radio stations, which is insufficient when backing up highly responsible systems requiring multiple backups, which does not ensure their reliability. The purpose of the invention is to increase the reliability of the device in operation. For this purpose, a multichannel device for reserving radio stations containing in each main channel a main radio station, the output of which is connected to the input of the control unit, the outputs of all the control units are connected to the inputs of the OR element and the address inputs of the memory block setup codes, the input of which is connected to the output of the OR element, and the bit outputs to the register inputs and, in the backup channel, are connected in series to the decoder, the electronic unit Frequency tuning and a backup radio station, the first, second, third And elements and the trigger are entered in each backup channel, the direct output of which is connected to the second inputs of the first and third elements And the inverse output — to the second input of the second element And, and the single input - with the output of the second element And, the first input of which is connected to the first input of the first element And, the output of the third element And the connection to the input of the decoder, and the first input with the register, the first input of the first element And connected to the output of the first element And precede dego channel, and the first input of the first element I. the first backup channel is connected to the output element OR. The drawing shows a functional diagram of the device. The multichannel device for reserving radio stations contains the main radio stations 1, control units 2, element OR 3, block 4 of tuning codes memory, register 5, decoder 6 in each reserve channel, block 7 of electronic frequency tuning, standby radio station 8, first 9 and second u elements. And, trigger 11. the third element And 12. The remaining positions are:. A - address, C - read one input and P - bit outputs of the memory of the tuning codes, O - zero and 13 - single input of the trigger, 14 - information input of the channel. The device works as follows. . In the initial state, when all main radio stations 1 are operational at the outputs of block 2 of the control, there are no signals, they are absent at the output of the remaining elements. In the block of memory codes for each address, a code of the frequency of the corresponding main radio station is recorded. All backup radio stations are free, so the channels 14 are fed to the inputs to set the triggers 11 to the zero state. If any of the main radio stations 1 fail, the output of its control unit 2 will be a signal that goes to one of the address inputs A of the block 4 memory settings codes. At the same time, the failure signal through the element OR 3 is fed to the read input C of the block 4 of the memory of the setting codes. Since at each address the tuning frequency code of the corresponding radio station is recorded, a signal appears on the bit outputs P with the tuning frequency code of the failed main radio station, which is recorded in register 5. At the same time, the fault signal from the output of the OR 3 element goes to the first input of the second element AND Y. Since the initial trigger 11 is set to the zero state, then its inverse output, and, therefore, and on the second input IO 1, the signal of the logical unit acts. The levels of the signals on the input rape of ephemega AND 10 coincide, a signal appears at its output, which switches trigger 11 to a unitary state. At the first output of the trigger, a signal opens that opens the third element D2, which passes the signal of the code

I tuning frequency of the failed radio station from the output of the register 5 to the input of the decoder 6 and further to the block 7 of the electronic rebuilding frequency. The latter, in accordance with the received code, rebuilds the backup radio station 6 to the frequency of the failed main radio station.

When a second failure occurs in the register, the frequency code of the second failed radio station will be written in the same way. The failure signal from the output of the element OR 3 has passed through the first element AND 9 of the first backup channel (since its

.the second input is valid the resolving signal from the direct output of the trigger 11), is fed to the first input of the second element And 10 of the second, backup channel. Then the process will proceed in a similar way: the trigger 11 switches to one state, element 12 opens. The tuning frequency code through the decoder 6 enters the electronic frequency tuning unit 7, which rebuilds the backup radio 8. When a new failure occurs, the process new. Torque and the next backup radio radio Ahi is reconfigured to the frequency of the failed primary.

If at the same time one of the previously included reserve radio stations is released, then with the next failure it is the one that again replaces the failed one.

Let, for example, the first reserve radio station be freed. Then, by the information input of the load 14 to the zero input O of the trigger 11 of this channel, a signal is given that triggers the trigger to the zero state, which characterizes the channel unavailability. The forward trigger output is affected by a low level signal, which closes the channel 9 element, preventing the next failure signal from launching other free backup radio stations, and the high level signal that opens the AND element 0 on the inverse of the termination signal, which opens it is another failure signal with the subsequent restructuring of the backup radio station of this channel in the manner described.

Thus, the proposed device manages the reorganization of an arbitrary number of backup radio stations, which allows multiple redundancy, as well as, consequently, a significant increase in reliability. The positive quality of the device is the maintenance of a constant number of connections between the backup channels, which is the minimum possible and equal to one. This is an important feature when channeling in multichannel devices.

Claims (1)

MULTI-CHANNEL DEVICE-, STVO TO INCLUDE RESERVE RADIO STATIONS, containing in each. the main channel is the main radio station, the output of which is connected to the input of the control unit, the outputs of all control units are connected to the inputs of the OR element and to the address inputs of the memory unit codes setting, input, reading. which is connected to the output of the OR element. it is single with the output of the OR element, and the bit outputs are with the inputs of the register, and in each redundant channel there are sequentially connected a decoder, an electronic frequency tuner and a backup radio station, characterized in that, p. In order to increase the reliability of the device in operation, it contains in each backup channel the first, second, third elements And and a trigger, the direct output of which is connected to the second inputs of the first and third elements And, the inverse output is with the second input of the second element And, and a single input - with the output of the second element And, the first input of which is connected to the first input of the first element And, the output of the third element And is connected to the input of the decoder, a. the first input is with the output of the register, the first input of the first AND element is connected to the output of the first AND element of the previous channel, and the first input of the first AND element of the first backup channel 00 □ About 00 □ about> 1 1043838