CN201450508U

CN201450508U - Time synchronizer

Info

Publication number: CN201450508U
Application number: CN2009200329314U
Authority: CN
Inventors: 漆溢; 宋西军; 刘杰
Original assignee: XIAN LINGNIU ELECTRONICS TECHNOLOGY Co Ltd
Current assignee: XIAN LINGNIU ELECTRONICS TECHNOLOGY Co Ltd
Priority date: 2009-05-04
Filing date: 2009-05-04
Publication date: 2010-05-05
Anticipated expiration: 2019-05-04

Abstract

The utility model discloses a time synchronizer which comprises a timing antenna 1; the timing antenna 1 is connected with a satellite receiving unit 2 which is connected with a time interval measuring instrument 3; the time interval measuring instrument 3, the satellite receiving unit 2 and a rubidium atomic clock 4 are connected with a data processing and communicating unit 5 which is respectively connected with a user display and operation interface 6 and a communication network unit 9; and the rubidium atomic clock 4 is connected with a pulse and frequency assignment unit 7 which is connected with the time interval measuring instrument 3 and an IRIG-B generating unit 8. In the utility model, the rubidium atomic clock 4 is internally installed, the time of space-born atomic clocks of all the satellites are used as the intermediate carrier for time comparison, the time of passive stations are adjusted to lead the time of all the passive stations to be precisely synchronized with that of a master station, and the time synchronizer is not influenced by the time deviation of the space-born atomic clocks, has good time keeping performance when the satellites are not available, and has simple operation and convenient use.

Description

A kind of time synchronized instrument

Technical field

The utility model relates to a kind of split-second precision, frequency transmission comparison equipment, particularly a kind of time synchronized instrument.

Background technology

Mostly civilian time synchronized is that the navigation time service text that adopts satellite time receiving equipments such as GPS or GLONASS directly to receive satellite transmissions such as GPS or GLONASS carries out synchronous at present, its synchronization accuracy is lower, be about 50ns, and have following problem: there is deviation in satellite star clock times itself such as (1), GPS or GLONASS, and satellite such as GPS or GLONASS is not a geostationary satellite, and what receive between multi-site that need be synchronous may not be same (group) satellite; (2), not communication link between multi-site, be isolated state, not free comparison can't be set up the time reference of self, relies on received separately satellite time signal fully; (3), satellites such as GPS or GLONASS may because of political factor by artificial adding disturbance or because of factors such as meteorologies, influence receives precision; (4), each receiving equipment itself do not possess time source mostly, timekeeping performance is poor.

Summary of the invention

In order to overcome the defective of above-mentioned prior art, the purpose of this utility model is to provide a kind of time synchronized instrument, built-in rubidium atomic clock possesses good timekeeping performance under the disabled situation of satellite, have characteristics integrated, simple to operate, easy to use.

In order to achieve the above object, the technical solution of the utility model is like this:

A kind of time synchronized instrument, it is characterized in that, comprise time service type antenna 1, the signal output part of time service type antenna 1 links to each other with the signal receiving end of satellite receiving element 2, satellite receiving element 21PPS output links to each other with the 1PPS receiving terminal of time interval measuring instrucment 3, time interval measuring instrucment 3, satellite receiving element 2, the data output end of rubidium atomic clock 4 links to each other with the Data Receiving port of communication unit 5 with data processing, the interface output port of data processing and communication unit 5, PORT COM shows and operation interface 6 with the user respectively, the input port of communication network unit 9 is connected, the 1PPS output of rubidium atomic clock 4, signal output part links to each other with the corresponding port of pulse and Frequency Distribution unit 7, the time signal output of pulse and Frequency Distribution unit 7 links to each other with the corresponding port of time interval measurement 3, and the signal output part of pulse and Frequency Distribution unit 7 links to each other with the signal output part of IRIG-B generation unit 8.

Because the built-in time source of the utility model---rubidium atomic clock possesses good timekeeping performance under the disabled situation of satellite; And it is integrated, simple to operate, easy to use.

Description of drawings

Accompanying drawing is a structure principle chart of the present utility model.

Embodiment

Below in conjunction with accompanying drawing structural principle of the present utility model and operation principle are described in detail.

With reference to accompanying drawing, a kind of time synchronized instrument, it is characterized in that, comprise time service type antenna 1, the signal output part of time service type antenna 1 links to each other with the signal receiving end of satellite receiving element 2, satellite receiving element 21PPS output links to each other with the 1PPS receiving terminal of time interval measuring instrucment 3, time interval measuring instrucment 3, satellite receiving element 2, the data output end of rubidium atomic clock 4 links to each other with the Data Receiving port of communication unit 5 with data processing, the interface output port of data processing and communication unit 5, PORT COM shows and operation interface 6 with the user respectively, the input port of communication network unit 9 is connected, the 1PPS output of rubidium atomic clock 4, signal output part links to each other with the corresponding port of pulse and Frequency Distribution unit 7, the time signal output of pulse and Frequency Distribution unit 7 links to each other with the corresponding port of time interval measurement 3, and the signal output part of pulse and Frequency Distribution unit 7 links to each other with the signal output part of IRIG-B generation unit 8.

Operation principle of the present utility model is:

Time service type antenna 1 is transferred to satellite receiving element 2 with the satellite-signal that receives, satellite receiving element 2 produces the 1PPS signal and sends time interval measuring instrucment 3 to, the satellite message signal of while satellite receiving element 2, comprise data such as satellite pseudorange and ephemeris, send data processing and communication unit 5 to, the 1PPS of rubidium

atomic clock

4 and 10M signal send pulse and Frequency Distribution unit 7 to, pulse and Frequency Distribution unit 7 send these two kinds of signals to time interval measuring instrucment 3 and are used for measuring comparison, pulse and Frequency Distribution unit 7 also send signal to IRIG-B sign indicating number generation unit 8, producing the IRIG-B coded signal uses for the user, simultaneously, exporting to user after pulse and Frequency Distribution unit 7 amplify along separate routes to these two kinds of signals uses; The data of time interval measuring instrucment 3 send data processing and communication unit 5 to, the data that send data processing and communication unit 5 comprehensive satellite receiving elements 2 and time interval measuring instrucment 3 to obtain the time of main website rubidium atomic clock 4 and the deviation of the spaceborne clock on each satellite that receives, these data show that data processing and communication unit 5 send these data to communication network 9 simultaneously and send other each slave stations on user's demonstration and operation interface 6 simultaneously.

Claims

1. time synchronized instrument, it is characterized in that, comprise time service type antenna (1), the signal output part of time service type antenna (1) links to each other with the signal receiving end of satellite receiving element (2), satellite receiving element (2) 1PPS output links to each other with the 1PPS receiving terminal of time interval measuring instrucment (3), time interval measuring instrucment (3), satellite receiving element (2), the data output end of rubidium atomic clock (4) links to each other with the Data Receiving port of data processing with communication unit (5), the interface output port of data processing and communication unit (5), PORT COM shows and operation interface (6) with the user respectively, the input port of communication network unit (9) is connected, the 1PPS output of rubidium atomic clock (4), signal output part links to each other with the corresponding port of pulse and Frequency Distribution unit (7), the time signal output of pulse and Frequency Distribution unit (7) links to each other with the corresponding port of time interval measurement (3), and the signal output part of pulse and Frequency Distribution unit (7) links to each other with the signal output part of IRIG-B generation unit (8).