SU944115A2 - Device for remote monitoring of linear regenerators - Google Patents

Description

(, 5 +) DEVICE REMOTE CONTROL LINEAR

REGENERATORS

one

The invention relates to electrical communication technology and can be used to determine the number of a faulty digital signal regenerator in a linear path.

According to the main auth. N ° 653751 "known device for remote control of linear regenerators containing at the terminal station the transmitter of the control signal and serially connected counter, shift register and element And, to the second input of which the pilot of the control signal is connected, and the output of the element And is connected to the counting input of the counter, on the intermediate stations — regenerators of the transmitting and receiving paths, a detector, a serially connected counter, a shift register and a memory block, the setup inputs of which are connected to the output projector of, and a switching unit through which additional regenerator output transmission path connected to the input of the regenerator receiver path, wherein the main output of the regenerator transmission path connected to the input of the detector and the counting input of the counter 1.

However, the known device has a low control accuracy.

The purpose of the invention is to improve the accuracy of control by increasing, by (j, the immunity of the control signal and bringing its structure to the structure of the information signal.

To do this in a remote control device for linear regenerators

J5 entered at the terminal station a pseudo-random sequence shaper and a serially connected frequency divider, address shaper, and transducer, and an intermediate one

station filter, while at the terminal station the output of the transmitter of the control signal is connected to the input of the frequency divider, to the second input 3 of the address generator, the first input of which is connected to the auxiliary input of the counter, and to the input of the pseudo-random sequence generator, the output of which is connected to the second input of the switch the third input of which is connected to the output of the element I, and at the intermediate station the entrance of the detector and the second input of the counter are connected to the first output of the regenerator of the transmission path through Iltr. The drawing shows the structures on the electrical circuit of the proposed device. The device for remote control of linear regenerators contains at the terminal station a transmitter 1 of the control signal, an AND 2 counter-to 3 element, a shift register C, a frequency divider 5, a driver of 6 address signals, a controlled switch 7 and shaper 8 is a pseudo-random sequence, and at an intermediate station - a regenerator 9 of the transmitting tract, a regenerator 10 of the receiving tract, a detector 11, a counter 12, a shift register 13, a memory block H, a block 15 switching, filter 1 The device operates as follows. The transmitter 1 of the control signal is designed to form a clock frequency and control signals that control the operation of the element 2, These signals set the number of address control telecontrols to select an intermediate station in the linear path. The duration of the telecontrol address parcels is determined by the counter 3 and the shift register. For one parcel, telecontrol monitors the pulses of the control frequency, which is chosen significantly less than the clock frequency, which became possible due to the introduction of the frequency divider 5. Counter 3 at the terminal station and counter 12 at the intermediate station have a counting factor equal to K, which determines the duration of one parcel of the telecontrol. The shift register 4 at the terminal station and the shift register 13 at the intermediate station have п ets, which makes it possible to control η intermediate stations. A signal with a controlled frequency is superimposed on a signal with a clock frequency in the driver 54 of the address signals. The controlled switch 7, under the action of signals from element 2, connects the shaper 6 of the address signals or shaper 8 to the linear path. At the intermediate station, through the regenerators 9 and 10 of the transmitting and receiving paths, the ICMS signals are transmitted, the detector 11 sets the counter to its initial state 12, the shift register 13 and the memory unit 1, which controls the operation of the switching unit 15, and the filter 16 selects the low-frequency telecontrol signal and generates a signal to control the detector M and the counter 12. P and turning on the device, the transmitter 1 of the control signal sets element 2 to the state corresponding to the control of the first intermediate point, and the clock output of this transmitter 1 controls the operation of the driver 8, the divider 5 and the driver 6 of the address signals, which through a controlled switch 7 transmits the address signal, which contains the control frequency. Counter 3 counts K the control frequency pulses, after which the shift register L switches to the second cell and a signal appears at the output of element 2, which switches the control switch 7 to the position of transmitting the signal from the driver B. Then the transmitter 1 of the control signal forms a command And 2, which starts the formation of the address parcel for the next intermediate station. The control frequency from the additional output of the transmitting path regenerator is allocated by the filter 16, and the detector 11 at the same time enables the operation of counter 12, register 13 and memory block N. Counter 12 counts K of control frequency pulses and advances the signal in shift register 13. In memory block 14, depending on the number of the intermediate station, a jumper is installed which selects the well in the shift register 13 and as soon as a signal appears on this cell, a logical level is formed at the output of memory block 1A, which opens the switching unit 15. In this case, the signal from the additional output of the regenerator 9 of the transmitting path through the switching unit 15 is supplied

five

to the input of the regenerator 10 of the receiving path and returns to the terminal station to monitor distortions arising in the linear path.

The technical and economic efficiency of the proposed invention is to improve the accuracy of monitoring regenerators in unattended intermediate stations by introducing a pseudo-random 1 sequence generator and address signal generator, frequency divider and filter, as well as ensuring high noise immunity due to the fact that the reference frequency is significantly reduced due to the introduction of a divider. Frequency and filter.

Claims (1)

1. USSR author's certificate No. 653751, cl. Qt B 1/60, 1978 (prototype).