SU568199A1 - Self-monitoring transmitter of telegraph apparatus - Google Patents

Description

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The invention relates to the transmission of discrete information that can be used in electronic transmitters of telegraph devices.

A telegraphic transmitter transmitter with an automatic circuit is known, comprising a keyboard combinator and a transmitter set-top box, the outputs of which are connected via a multi-stage buffer drive to the corresponding inputs of the transmitting distributor connected to the first output, to the output driver of signals, the additional output of which is connected to the interface unit and the unit comparison, the output of which is connected to one of the inputs of the element And l. .15

However, the well-known telegraph transmitter does not provide high fidelity of the transmitted information.

In order to increase the fidelity of the information being transferred into the telegraphic transmitter of the 20-pack with automatic control, containing a keyboard combinator and transmitter set-top box, the outputs of which are connected through the multi-stage truss accumulator to the corresponding inputs of the transmitting distributor, 25

connected by the first output to the output driver, an additional you. the stroke of which is connected to the conjugation flare H, the comparison unit, the output of which is connected to one of the inputs of the AND element, is entered a parallel code check block, a sequential code check block and a shift register; the inputs of the parallel code checker are connected to the outputs of the keyboard combinator and the transmitter set-top box, and the output is through a shift register connected to the additional output of the multi-stage buffer accumulator connected to one of the inputs of the comparator, the other input of which is connected to the output of the unit through the serial code checker mates, and in three. transmitter output distributor connected to. another input element I.

The drawing shows the structural electrical circuit of the proposed device.

Claims (1)

The outputs of the keyboard combinator 1 and the transmitter set-top box 2 are connected via a multistage buffer storage 3 to the corresponding inputs of the transmitting distributor 4 connected by the first output to the output (| signal converter 5, additional terminal of which is connected to the interface unit 6, the output of the control unit 7 is connected to oflnoNiy of their inputs of the And 8 element. The inputs of the parallel code 9 check block are connected to the outputs of the keyboard combinator 1 and the traggmitter prefix 2, through the shift register U connected to the additional the output output of the multi-stage% (|) er accumulator 3. Connected to one of the inputs of the comparison unit 7j, another input through a sequential code checker 11 is connected to the output of the interface block b, the second output of the transmitting distributor 4 is connected to another input of the element And 8. The transmitter operates as follows: When transmitting information from the keyboard combinator 1 or from the transmitter prefix 2, the code combinations are entered into a multi-stage buffer storage 3, in which the combinations advance: from the first step to And -wu. If there is a code combination in the tt-th stage of the accumulator 3, the transmitting distributor 4 is started. At the same time, the code combination from the accumulator enters the transmitting distributor, in which the start-stop sequential combination is transmitted through the output shaper 5 to the line. parallel code checks 9 checks combinations for evenness (oddness). The result of the test as a signal (or O) is written to the shift register g 10, the number of bits of which is equal to the number of stages of accumulator 3. Simultaneously with the advancement of the combination in the accumulator 3, the result of its verification in the shift register 10 is advanced. In code 11, it is again checked for evenness (oddness). The results of both checks are sent to comparison block 7. If there are errors in the transmitted information caused by faults or failures of the transmitter blocks, the results are checked to parallel and sequential codes are different, and therefore the comparison block 7 outputs a resolution signal to the element 8. At the same time, the signal from the transceiver 4 is at the moment of transmission 1). P (1B () of the combination element passes through the AND 8 as Si1,. If the transmitter is functioning correctly and there are no failures in its operation, the results of both checks are the same, from the comparison block 7, when the stop element of the combination is transmitted, the input signal for the AND 8 element is received, and there is no Error signal on its output. The use of this transmitter will allow to increase the accuracy of the transmitted information, provide the possibility of automatic detection of failures of the transmitter units of the telegraph apparatus. Claim of the Invention A telecontrol transmitter with auto-control, containing a keyboard combinator and a transmitter set-top box, the outputs of which are connected via a multi-stage buffer drive to the corresponding inputs of the transmitting distributor, 1 in the first output to the output driver from the transducer, the additional output of which is connected to the junction box, and comparator unit, the output of which is connected to one of the inputs of the element I, which also means that, in order to increase the accuracy of the transmitted information a, a parallel code check block, a sequential code check block and a shift register are entered into it, while the inputs of the parallel code check block are connected to the outputs of the keyboard combinator and transmitter prefix, and the output is connected via a shift register connected to the additional output of the multi-stage buffer accumulator from the inputs of the comparison unit, the other input of which is connected through the checker in series with the code to the output of the interface block, the second output of the transmitting distributor ene to another input member I. Sources of information received during vsh1manie under examination: 1, USSR Author's Certificate № 5O4310 H 17 O4 L / O4 1974.