SU558259A1 - Device for synchronizing working time scales - Google Patents

Description

one

The invention relates to the measurement of exact time and can be used, in particular, when synchronizing time scales of working hours, connected by a radio channel with a time varying delay with reference hours.

Devices are known for comparing the indications of spaced clocks interconnected by a two-way radio channel. In particular, a device is known for synchronizing the time scales of operating hours included in a two-way radio channel with the reference clock, comprising a receiver, a transmitter, and a signal splitter connected to the receiver output. This known device is difficult to operate and requires the presence of an operator in the measurement process to service the meter.

The aim of the invention is to provide automation of the synchronization process of the time scale of working hours with the time scale of exemplary hours. In the described device, this is achieved by introducing two flip-flops with separate inputs, two low-pass filters and a differential amplifier, while the output of the Exemplary Clock signal splitter connects the first zero input and the single input of the second flip-flops, whose outputs through filters

low frequencies are connected to the inputs of the differential amplifier, the output of which is connected to the control input of the working hours, the output of which in turn is connected to

INPUT At the transmitter and the single input of the first trigger, with the zero input of the second trigger connected to the output “Operating hours of the signal splitter.

FIG. 1 shows a block diagram of the described device; FIG. 2 - time diagrams that show his work.

The device contains a two-way radio channel linking model hours 1 and working hours 2, and including transmitter 3 and receiver 4 located at model hours 1, transmitter 5 and receiver 6 located at working hours 2, signal splitter 7, two potential triggers 8 and 9, connected to the separator of the Sigals 7, two low-pass filters 10 and 11, podk. respectively, to the trggers 8 and 9, as well as to the working hours 2 through the differential amplifier 12, the trigger 8 is also connected to the working1 hours 2.

The signal 13 of the working hours 2 is fed to the input of the transmitter 5, received by the receiver 4 and fed to the input of the transmitter 3. The signal of the 14 reference hours 1 is also fed to the input of the transmitter 3. The signals emitted by the transmitter 3 are received by the receiver 6 and the hearth 7. As can be seen from the timing diagram, a signal relay of 15 working hours 2, delayed relative to the signal of 13 working hours 2 for a double time of the delayed signal on the radio channel, and a received signal of 16 exemplary signals are transmitted to the input of the signal splitter 7. ow 1, delayed relative to the signal of 13 working hours 2 at the time in + T (where G is the difference between the working time of the operating and reference hours; in-delay of the signal in the radio channel). From the output of the signal separator 7, the received signal is 16 reference hours 1 is fed to the zero input of the trigger 8 and the single input of the trigger 9, and the retransmitted signal 15 operating hours 2 is fed to the zero input of the trigger 9. The single input of the trigger 8 is given a signal of 13 working hours 2. The output of the trigger 8 generates a signal 17 of duration + G , and at the output of the trigger 9 - Signal 18 duration in-T.

The signal 17 at the output of the trigger 8 and the signal 18 at the output of the trigger 9 have the indicated durations subject to condition 1. (where T is the period of the sequence of pulses). This condition, as a rule, is fulfilled and the synchronization of the high-precision time scales of the clock.

The signal 17 from the output of the trigger 8 is fed to the input of the low-pass filter 10, and the signal 18 from the output of the trigger 9 to the input of the filter 11.

The voltage at the output of the filter 10 is proportional to an interval of time of -1-1, and at the output of filter 11 is proportional to the interval of time of a-T.

The outputs of the filters 10 and 11 are connected to the corresponding inputs of the differential amplifier 12.

The appearance at the output of the differential amplifier 12 is proportional to the voltage difference at its inputs and, consequently, proportional to the difference in the length of the spars of sig5 17 and 18

and (in-T) (in-T - T.

Differential output voltage

10 amplifier 12 proportional to the difference G

time scales of working and exemplary hours,

fed to the input of the working hours control

2 for their automatic synchronization.

Claims (1)

Invention Formula A device for synchronizing the time scales of working hours included in two-sided research institutes a radio communication channel with exemplary hours containing a receiver, transmitter and signal separator connected to the receiver output, characterized in that, in order to automate the synchronization process, P1 clock of working hours with H clock, it introduced two triggers with separate inputs, two low-pass filters and a differential amplifier, with the output “Exemplary 0 clock signal separator is connected to the zero input of the first and single input of the second trigger, the outputs of which are connected via low-pass filters to the inputs of the differential amplifier, the output of which is 5 keys to the control input of the working hours, the output of which is in turn connected to the input of the transmitter and the single input of the first trigger , and the zero input of the second trigger is connected to the output "Working hours signal splitter. (rig /