SU468215A1 - Device for transmitting time information - Google Patents

Description

one

The invention relates to the field of computational techniques, and may find some examples for transmitting temporal information in a code form to computing device recording devices, information boards, as well as in automated production control systems.

There are known devices for transmitting time information containing a primary clock station connected by a communication line with a stepper motor of a secondary clock, the code contacts of which are connected to the output buses and the time code polling bus through the AND and OR schemes.

However, for the period of code change, which coincides with the moment of the code survey, distortions are introduced into the code information, which does not ensure the accuracy of the transmission of temporal information.

The proposed device differs from the known ones in that the output of the primary clock station is connected via a NOT-AND logic circuit to one of the circuit inputs. match and through another NAND scheme and L delay line to one of the inputs of the other

coincidence circuits, outputs of both mentioned coincidence circuits are separately connected to the inputs of the third coincidence circuit. Associated with the input contacts of the code contacts, the third input of which is connected to the second input of the second coincidence circuit, with one of the inputs of the coincidence circuit contacts of the secondary clock, and through another delay line with the second input of the first coincidence circuit, and with the output of the additional coincidence circuit, the inputs of which are connected to the power supply unit and the time code polling bus.

This makes it possible to increase the reliability and reliability of the transmission of temporal information.

The drawing shows a block diagram of the proposed device.

The device contains a primary clock station 1, connected by a communication line 2 to the power supply unit 3 and to the stepper motor 4 of the secondary clock 5, the code contacts 6 of which through the schemes OR 7 and. And 8.9 are connected to the output tires.

lO, bus 11 polling time code. The output of the primary clock station 1 is connected through the logic circuit NB-I 12 to one of the inputs of the coincidence circuit 13 and through another circuit NOT-14 and the line

Cases 15 to one of the inputs of the other coincidence circuit 16, the outputs of both these coincidence circuits 13 and 16 are separately connected to the inputs of the third coincidence circuit 17 connected to the input buses 18 of the code contacts 6, the third input of which is connected to the second input of the second circuit matches 16, with one of the inputs of the matching circuits 8 and 9 installed in the output bus 10 circuit, code contacts 6 of the secondary clock 5, and through another delay line 19 with the second input of the first coincidence circuit 13 and the output of the additional coincidence circuit 20, inputs which connection us with a power unit 3 and the bus 11 polling time code. The number of circuits OR 7, AND 8 and 9 corresponds to the number of code contacts 6 connected by buses 21 to one of the inputs of the circuits OR 7

The device works as follows.

The primary clock station 1 is supplied with power from the power supply unit 3 continuously, and to the entire logic circuit AND, OR, and contacts 6 of the secondary clock 5 only through the match circuit AND 2O, if the second time polling signal at its second input

If at the moment of transferring contacts 6, i.e. in the presence of a time signal T on

one of the inputs of the NB-I 12 circuit, at the other input of the coincidence circuit 20, a time code interrogation signal t appears at the output of the NANDI circuit 12 and, therefore, at the output of the AND 13-rf 17 circuits; There is no signal until the end: the signal T from the primary clock station 1 at the first input of the HEi-I circuit 12, while the polling signal of the time code t coming from the output of the circuit 20 through the delay line 19 is delayed until the signal T terminates the aforementioned input of the NB-I 12 circuit, and at the end of the T signal, the NB-I 12 circuit generates on its input a signal opening the coincidence circuits 13 and 17 and the NAND circuit 14. At the same time, the c-output signal of the coincidence circuit via code contacts 6 , scheme OR 7, and 8,9 comes on the output bus 10.

The device allows multiple repetitions of the time code and has increased operational reliability and reliability of the time code transmission.

Subject invention

A device for transmitting temporal information, comprising a primary clock station connected by a communication line to a power unit and to a stepper motor of a secondary clock, code

the contacts of which are connected via OR or AND circuits to output buses, a time code interrogation bus, characterized in that, in order to increase the reliability and reliability of the transmission of temporal information, the output of the primary time station is connected via a non-AND logic to one of the outputs of the coincidence circuit and through another circuit and a delay line to one of the inputs of the other coincidence circuit, the outputs of both these coincidence circuits are separately connected to the inputs of the third coincidence circuit connected to the input buses of the code contacts, the third input to The second is connected to the second input of the second coincidence circuit, with one of the inputs of the coincidence circuit installed in the output bus circuit of the code contacts of the secondary clock, and through another delay line with the second input of the first coincidence circuit, and with the output of the additional coincidence circuit whose inputs are connected to power supply and time code polling bus.