SU546846A1 - Device for automatic synchronization of time scales - Google Patents

Description

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This invention relates to the field of radio navigation.

Known devices for binding time scales, using signals transmitted through a pulse-phase radio navigation system (NFRNS) in a combined way 1.

The main disadvantage of these devices is their low informative ability.

It is also known a device comprising an irimoid indicator, the output of which is connected to the key and trigger inputs, the second output of the receiver indicator is connected to the input of the AND circuit, and the third output is connected to the input of the recurrent frequency divider, the output of which is connected to the feedback pulse generator input, with the output of the digital delay counter, the second input of the recurrent frequency divider is connected to the output of the feedback pulse shaper, the second input of which is connected to the second output of the recurrent section frequency bodies, and the third input of the feedback pulse generator is connected to the trigger output and to the third input of the key, the output of which is connected to the storage time input, the second input of which is connected to the output of the reference oscillator, the output of the time store is connected to the third input of the recurrent frequency divider, and the second output of the time buoyer is connected to the second input of the AND circuit, the output of which is connected to the second input of the 2J trigger.

However, in such a device, after the end of the attachment to the time signals and the installation of the time store, the time information contained in the navigation signals emitted continuously is not used, and the memory function is performed by the precision}) time keeper.

To check the correctness of the binding, the entire cycle of the binding must be repeated, and the period of coincidence of the time and pacing signals may be thousands of seconds or more.

The proposed device differs from the known one in that it includes two additional keys, a counter-drive, an additional AND circuit, a program device, the output of the recurrent frequency divider is connected to the input of the first additional key, the second input of the first additional key is connected to the output of the drive counter, and the output of the first additional key is connected to the input of the digital delay counter, the input of the additional circuit I is connected to the tertn.m output of the front-end indicator, the second input of the additional circuit I n dklyuchen to the output device software, whose input is connected with. the second is coming out

the second output of the time storage is connected to the input of the additional key, to the second input of the software device and to the input of the drive's counter, the third output of the time storage is connected to the third input of the counter-tip, the third input of which is connected to the output of the full II circuit, the second additional key Connect to the input of the recurrent delntel frequency.

Such an opportunity makes it possible to increase the informative reliability using the information about the time, contained1 uyus in each recurrent navigation signal.

The drawing shows a functional diagram of the device being described, where 1 is a recurrent frequency divider, 1 is an on-set generator, 3 is an automatic signal generator, 4 is a feedback driver, 5 is a trigger, 6 is an AND circuit, 7 is a time keeper, 8 is digital delay counter, 9, 10 - keys, I-counter and head, 12 - I circuit, 13 - irogram my device, 14 - key.

The recurrent frequency divider 1 is synchronized with the reference generator 2 through the time keeper 7 and has control values from the automatic receiver and the 3 n generator of the feedback 4 pulses.

To the input of the software device 13, the signals from the output of the recurrent divider 1 are transmitted through the key 14. The key 14 is controlled, the installation of the program device 13 and the counter 11 is performed by the time store 7 signals, and the slot of which is additionally connected to one of the inputs of the software device 13.

Using nnmondendkat 6, control recurrent divider 1 bind to navigation signals. At the moment of time according to the tables, with the signal from the output of the stored time 7, transmitted through the sovna 1 and 6 circuit and the trigger 5, the feedback emulator 4 n is turned off and the key 9 is turned on.

From the output of the time store 7, a counter-drive 11, a software device 13 is installed, and the key 14 is turned on.

The impulses from the output of the recurrent divider 1 through the key 10, the digital delay counter 8 n the key 9 are fed to the installation of the time storage 7.

Thus, the recurrent frequency divider 1 at the moment of arrival of a pulse from time store 7 becomes a frequency divider, the output of which forms standard scale marks, the phase of which corresponds to the time position of the recurrent signals on the time determined by the tables.

Due to the fact that the formation of a recurrent frequency at the transmitting station of the IFRNS pz ntotochnika highly stable cobalt occurs in accordance with the expression

Track OS- “100,

where 7rek is the iriod of the recurring signal, T osp is the neural signal of the axis frequency, n 1-9,

It can be easily determined, since the moment of recurrence of the signals of the standard frequency time (this time is given in the tables), the phase divergence of each successive iiM pulse of the standard time and the recurrent signals, and the cost of the output from the output of the output indicator 3.

In software device 13, each Lnada H1ka; 1s pulse from the recurrent delntel 1 after MOMeirra coincides, is shifted to a variable well, characterized by a divergence of the time and navigation phase signals, i.e., the recurrent from the signals of the standard 1 time cycle is received and item.

Thus, in the coincidence circuit M 12 non-discontinuous, the recurrent navigational signals from the output of the indicator 3 and the signals of the recurrent frequency, formed from the signal of the recurrent frequency divider 1 with the disabled feedback emulator 4, i.e., from the time-delay time signal, are compared. iwikta

The pulses from the output of the siiadeni I 12 circuit also start both the input of the counter-accumulator 11, the capacity of which is determined by the probability of the combined recurrent signals and depends on the probability of the recurrent divider 1 and the program device 13. If I exceed the defined counter count for the selected time interval, the key 10 remains open, and the standard standard clock passes through the digital delay counter 8, which delays by the amount of time roubleshooting and further through a key 9 to install timekeeper 7.

The non-continuous comparison and installation of time-use timepieces with the navigation sigals IFRS enhances the device's nforma- tive reliability and reduces the time custodian's requirements and greatly simplifies it without reducing the storage reliability and outputting the time-of-day time signals.

Claims (1)

Invention Formula A device for automatic synchronization of time slots, containing a user interface, the output of which is connected to the key and trigger inputs, a second output of the receiver indicator, and is connected to the input of the AND circuit, and the third output is connected to the recurrent input