SU615522A1 - Remote control information transmitter - Google Patents

Description

one

The invention relates to information transmission systems and can be used to transmit a K01 command telecontrol.

Data transfer devices are known, which contain sensors that are synchronized by a valve, memory blocks, and shunt 1 shapers at monitored points.

The closest in technical essence to the present invention is a device for transmitting telemechanical information, comprising transmitters whose inputs are connected to the first output of a synchronization unit, the second output of which is connected to the first input of the memory unit through the reset pulse shaper, to the second input of which the output of the first element AND, the output of the memory unit is connected to the first input of the second element AND, the output of the first transmitter is connected to the first inputs of the OR element and the first element AND, the output of the second the transmitter is connected to the second input of the second element AND, the output of which is connected to the second input of the element OR, connected to the communication line 2.

However, in known devices, the address of each transmitter is obtained by introducing an extended interval between pulses.

in the sequence of the preceding information. This extended interval is located for the first transmitter after the first pulse, for the second after the second pulse, and for the third, if any, after the third pulse. These additional pulses and extended intervals significantly increase the duration of the package and reduce the speed of the device.

The aim of the invention is to increase the speed of the device.

This is achieved by the fact that the output of the synchronization unit is connected to the second input of the first element I.

FIG. 1 depicts functional

scheme of the proposed device; in fig. 2-

timing charts of the device.

A device for transmitting telemechanical information contains transmitters 1 and 2, an element OR 3, a first element AND 4, a synchronization unit 5, a second element AND 6, a driver and a reset pulse 7 and a memory block 8.

The device works as follows.

The synchronization unit 5 generates pulses (Fig. 2 a), the temporary position of which coincides with the sync pulse. The impulse (Fig. 2 a) arrives at the time moment to the reset pulse generation unit 7, at the synchronization input of the transmitters 1 and 2, and at the input of the element 4. At a time equal to the command transmission cycle, at time t, the reset pulse shaper 7 generates a reset pulse (Fig. 2b), which is input to the reset input of the memory block 8. A signal is removed from the memory block output (Fig. 2e), allowing the command from the transmitter 2 to pass through AND 6 and OR 3 to the communication line. When transmitting telecontrol commands: neither at the same time as transmitter 1 and transmitter 2 (Fig. 2c and Fig. 2d), at the moment in time it, the sync pulse passes through the element OR 3 to the communication line (Fig. 2e) and to the input of the And 4 element. There is a coincidence of the clock pulse coming from the transmitter 1, and the pulse (Fig. 2 a) from the output of the synchronization unit. An impulse (Fig. 2a) passes through the AND 4 element to the input of the memory block 8 (Fig. 2 g). The signal (Fig. 2d) at the output of the memory unit changes to the opposite one, locks the AND 6 element and the command of transmitter 2 does not go to the communication line. Thus, the simultaneous transmission of commands to the communication line simultaneously from two transmitters is eliminated and only a command from transmitter 1 is transmitted. At the end of the transmission cycle of the command by pulse (Fig. 2b), memory block 8 is reset. And only in the absence of a command from transmitter 1 at time tj, does it become possible to transmit to the communication line (Fig. 2 a) commands from transmitter 2. Thus, in the proposed device, the simultaneous transmission of several transmitters is eliminated without assigning commands from each transmitter of the device additional signs preceding information that significantly increase the duration of the command. This allows a reduction. transfer command and improve device performance.

Claims (2)

1.Tutevich V.N. “Telemechanika M., 1973, p. 341-345. 2. Patent of the GDR L 45407, cl. 21 from 47/50, 1966.