SU478347A1 - Remote control device - Google Patents

Description

one

The invention relates to a television signaling device intended for outputting to the communication line information on the state of the monitored objects connected to it and used as a peripheral sealing device in wired digital television signaling systems.

In a known television signaling device, a distortion may be transmitted; information in the event that at the same time the transmission is made by another similar device connected to the same communication line.

The purpose of the invention is to improve the reliability of the device.

To do this, a matching circuit, inverters, a trigger and valves are entered into the device, the first input of the matching circuit is connected to the input of the device, the second input is connected to the output of the first valve through the first inverter, which is connected to the output of the device through the uncontrolled valve the inverter is connected to the setup input

the second trigger, the counting input of which is connected to the output of the third decoder and to the first input of the third valve, the second input of which is connected to the output of the second trigger and the first valve, and the output to the corresponding input of the first trigger, the output of the fourth valve is connected to the first driver, a, the inputs are connected respectively to the input of the buffer storage unit, to the output of the second trigger and the input of the first valve.

FIG. 1 shows the scheme of the proposed device; in fig. 2 - time diagrams of his work.

The device comprises a synphation reception unit 1, a synchronization reception unit 2, a distributor 3, a register 4, an address code decoder 5, a transmission start code decoder 6, a transmission end code decoder 7, a transfer differential circuit group 8, a buffer storage unit 9, triggers 10 and 11, shaper 12 transmission start count, shaper 13 of the address code, coincidence circuit 14, controllable gates 15-19, inert air ventilator

&

Til 2O and inverters 21 and 22, device inputs 23, 24 and 25, communications line 26, B1 & ODY 27 and 28 of the distributor, signal inputs 29 of the device, device output 30.

When the device is operated, its inputs 23, 24 W 25 receive signals from communication line 26. In this case, the synphation reception unit 1 receives the syncated pulses {see diagram a in FIG. 2),

generated in a communication line by the control room of the system in which this device is connected. The synchronization receiving unit 2 generates synchronizing pulses (see diagram B in FIG. 2). The pulses from the outputs of blocks 1 and 2 are fed to the inputs of the distributor 3, at the outputs 27 and 28 of which the sequences of pulses are formed (see Fig. 2, c and d). The pulses from the output 27 of the distributor 3 are fed to the clock input of the register 4, the pulses from the output 28 to the input of the shift control of this register, as well as to the inputs of the decoders 5, 6 and 7.

The trailing edge of each pulse coming from the output 27 of the distributor 3 to the AND, III, IV and Y positions of the word, the beginning of which is determined by the moment of formation of the biophasing pulse at the Output of the in-phase receiving unit 1, is sequentially recorded in pertscrp 4 codes whose characters are These positions are again fed to the input of the register 4 through the input 23 of the device from the linkage (in this case, this code is four bits). The impulse coming from the output 28 of the distributor 3 to the sixth position, breaks the shift chains in register 4 and connects to it the input of parallel recording, the combined outputs of the imaging unit 13 and the vents 16, with the falling edge of the pulse coming from the output 27 of the distributor, 3 at this position, the value of the code recorded in register 4 through the input 23 of the device is erased, and a record is made in register 4 of the code filed at this moment at the input of the parallel recording of register 4,

When the state of one of the controlled objects connected to the device changes, the signal in the form of a voltage drop arrives at the corresponding signal input 29 of the device (see Fig. 2, e). At the same time, the corresponding di (|) by the fringing circuit 8 forms an impulse arriving at the input of the buffer storage unit 9 (see Fig. 2, e), where the fact of reception of this and the pulse is remembered, and

at the moment when the first syncating pulse from the output of the synphonation receiver 1 arrives at its erase input, a signal is formed (see Fig. 2, g) by reversing the control trigger 1O to a state in which an output signal occurs at its output (see 2, g).

At the same time, the same synphurizing pulse through valve 19, to the control inputs of which the enabling signal from the outputs of the flip-flops 1O and 11 is fed, enters the input of the transmitter 12 of the transmission start code, from the output of which the registers 4 receive the signals that carry all the triggers 4 into one state, after which at the TS, t | t, 1U and Y positions of the word B, the transmission start code consisting of one single characters is output through the gate 18, on the control inputs of which there are permit signals from the outputs of the trigger 10 and 11, valve 2O and Exit 30 in communication link 26 (sm.fig.2, s).

The transfer start code transmitted through the input 23 of the device is written to register 4 at the same temporary positions of word B, where it completely recovers to the position of the word B, as a result of which the position of this word is generated at the output position of the decoder 6 of the transmission start code (see figure 2, K), entering the input of the valve 17, at the other entrance of which B is time. There is a negative signal from the output of the trigger 10, a pulse from the output of the valve 17 excites the shaper of the address number of the code 13, and the address code (in this case J.OOl) of this device is written to the A1 position of the word B in the register 4. This code is output to the communication line 26 within word b,

Acting through the communication line 26 and the device input 23 into register 4, the address code is completely restored to the position at the word position B, the result is a signal on the position1 of the word position at the output of the address code 5 decryptor (see, Fig.2 / l), which is fed to the inputs of the valves 16, This results in a signal at the output of that of the valves 16, at the signal input of which there is a signal from the object being monitored, which comes in through the corresponding ™ input 29 of the device. As a result, on the sixth position of the word B, the code 4 in the register 4 is written, which positionally reflects the state of controlled objects, which are tabbed to the device, in the form of the sign 5 478347

binary signals at the inputs of the device 29. This code is output to the communication line within the scope of T (the diagram and in Fig. 2 - the code has the form OOU-). By the end of the suyuva T, this code is also restored in register 4, however, it is not perceived by any of the decoders 5, 6 and 7 (which can be easily achieved, in particular, by using the corresponding code digits and introducing additional characters), after which the position of the word register 4 is zeroed.

Thus, within the limits of the word B, C, and T, the device sends a message about the change in the state of one of the controlled objects connected to it, containing the transfer start code, the device address code and the code describing the state of the controlled objects connected to it.

The signal to transfer the device to the initial state is the absence of code signals within the communication line within the word following the word T (the word D in Fig. 2). In this case, the position of the word D in register 4 is recorded as the code of the LLCO, which is the code of the end of the transmission. At the D1 position of the word D in this case, the output of the decoder 7 of the end of transmission code generates a signal (see Fig, 2, m) arriving at the counting input of the trigger 11 and, regardless of the previous state of this trigger, establishing it with its back edge in which the trigger signal is set at the output of the trigger 11 due to the presence of earth at the control input of this trigger (see FIG. 1). Since in the situation under consideration the trigger 11 was already in this state, its state when the signal from the output of the decipher code of the transmission end code 5 does not change to its input, and this signal simultaneously through the valve 15 goes to the setup input of the trigger 1O, setting it to in which the output of the prohibitory signal (see Fig.2, g). After that, the device is ready to receive new signals from monitored objects through inputs 29 and to transfer corresponding connections to the communication line.

In this situation, no other signals were transmitted via communication line 26 during transmission by the device of a message.

In the process of sending a message, the signal output by the device to the line

connection, from the output of the valve 18 through the inverter 21 is fed to the input of the coincidence circuit 14, to another input which received the same signal, but passed through the communication line 26 (through the input 23). Since, due to the presence of an inverter 21, these signals arrived at the inputs of the coincidence circuit 14 in opposite 1 phase, its output was constantly present at a low signal

level, which through the inverter 22 arrived at the installation input of the trigger 11 as a high level signal that does not affect the operation of this trigger. At the same time, trigger 11 itself due to the receipt

In the device, empty codes (transmission co. # Transmission codes) for the entire time that no transmission is made on the communication line is held in a state where

enabling signal (as discussed above).

Diagrams o, P, p (see Fig. 2) show the operation of the device in the case when at the same time the transmission

messages on the communication line 26 leads the other; a similar device connected to this line, and this device transmits the message shown in the diagram (see Fig.2, n),

with address code 1100.i

At the same time, the operation of the device up to 111 position of the word B is exactly the same as it was discussed above, in the absence of extraneous

to it, the signals in the communication line 26, since to this position the signals at the input 23 of the device and at the output of the valve 18 still coincide.

On the third position, the words B in connection with

40

the absence of a signal at the output of the valve 18 and its presence at the input 23 at the output of the coincidence circuit 14 appears a signal (see Fig.2, o), which, being inverted by the inverter 22, is fed to the input I of the trigger 11, setting it to a state in which a prohibitory signal occurs at its output (see Fig. 2, K). This signal closes the valve 18, excluding

the further output of signals from register 4 through the output 30 of the device to the communication line 26 (see Fig. 2, p).

In this case, the passage of another signal to the input of the coincidence circuit 14 through

the inverter 21 is eliminated due to the presence of the valve 20.

Thus, within the limits of words C and D, the signals of that device, the address code

which contains 1 on the closest to

the beginning of the temporary position where the address code of the other device contains O.; When the transmission end code arrives at the input of the device, it is reported that the other device is different (Chilo has his own transmission and communication line 26 is free), the output of the code end decoder 7 generates the transmission end code as before, which arrives at the counting input; trigger 11 and setting it with YOUR back (| font) to the state in which the output of the trigger signal occurs, the crossing signal. At the same time, however, this signal passes through the valve 15, since its control input still has a prohibiting signal from the output trigger Hera 11, by virtue of What the trigger 1O remains in, in which at its output there is: an enable signal. Now, when the output of the synthesizing receiver receives the most significant sync pulse, this pulse goes through the gate 19 again to the input of the generator 12 of the transmission start code, after which The entire message transfer cycle of the device starts over.

Subject invention

A remote signaling device containing synchronization and synphation receiving units, whose outputs are connected to the corresponding inputs of the distributor and to the first input of the buffer storage unit, the outputs of the distributor are connected to the corresponding j inputs of the register and to the first inputs of the first, second and third decoders (The second inputs are connected respectively with the first, second and third

; the output of the register, the signal inputs of the device are connected respectively to i

the first inputs of the valve group and kf

one ends of the differentiating chains, I

other ends of which are connected and through ;;

buffer storage unit connected iv

to the first input of the trigger, the output of which is connected to the first and second ventip, t

which are connected respectively

the fourth output registers, the outputs of the first and second decoder and the second input.

 dies of the valve group whose outputs are connected to the register connected to the communication institute, the outputs of the first driver and the second valve through the second driver are connected to the corresponding register inputs, which are 4TOi in order to increase the reliability of the device,

The coincidence circuit, inverters, trigger and valves, the first input of the matching circuit is connected to the device input, the second input through the first inverter is connected to the output of the first valve, which is connected to the output of the device through the uncontrolled valve,

through the second inverter is connected to the installation input of the second trigger, the counting input of which is connected to the output of the third decoder and to the first input of the third valve, the second input of which is connected to the output of the second trigger and the first valve, and the output to the corresponding input of the first trigger, output the fourth valve is connected to the first driver, and the inputs are connected

corresponding to the input of the buffer storage unit, to the trigger output and the input of the first valve.

29 9 9998

rU

Sh

TTTT

Iff

2J

W

eleven

four

17 / J

12

/ V

27

2 /

L

20 30

g / g /