CN105573110B - The leap second detecting system and method for GNSS time synchronization system - Google Patents
The leap second detecting system and method for GNSS time synchronization system Download PDFInfo
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- CN105573110B CN105573110B CN201610078245.5A CN201610078245A CN105573110B CN 105573110 B CN105573110 B CN 105573110B CN 201610078245 A CN201610078245 A CN 201610078245A CN 105573110 B CN105573110 B CN 105573110B
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- G—PHYSICS
- G04—HOROLOGY
- G04R—RADIO-CONTROLLED TIME-PIECES
- G04R20/00—Setting the time according to the time information carried or implied by the radio signal
- G04R20/02—Setting the time according to the time information carried or implied by the radio signal the radio signal being sent by a satellite, e.g. GPS
- G04R20/04—Tuning or receiving; Circuits therefor
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Abstract
The invention provides a kind of leap second detecting system of GNSS time synchronization system, the system includes satellite navigation signal simulator, the navigation signal control system and monitoring computer of the configuration satellite navigation signal simulator.Whether monitoring computer is consistent with the configuration status of satellite navigation signal simulator output navigation message by monitoring the time parameter that GNSS time synchronization system calculates and outputs, and judges whether the GNSS time synchronization system possesses leap second function.The present invention also proposes a kind of leap second detection method of GNSS time synchronization system accordingly, easy to use based on satellite navigation signal simulator, can realize that GNSS time synchronization system leap second is verified.
Description
Technical field
The present invention relates to field of satellite navigation, more particularly to a kind of leap second detecting system and side of GNSS time synchronization system
Method.
Background technology
GNSS time synchronization system as a kind of basic guarantee platform, send out by the every profession and trade in fields such as communication, electric power, traffic
More and more important effect is waved, multiple terminal equipment is required to correct time synchronizing information, and mistake can not occurs.With
The construction and development of Beidou satellite navigation system, more and more it will be entered using Beidou satellite system in GNSS time synchronization system
Row time service.
In order to ensure, accurately and reliably, GNSS time synchronization system must possess leap second adjustment function to issuing time.Mesh
Before, 26 leap seconds have been carried out in the whole world.The last leap second when 2015 Beijing time morning 7 on the 1st in July 59 divide 59 seconds and
When 8 00 divide 00 second between occur.Increased this " one second ", for some special industries, it is sufficient to bring very big influence.According to
Understand, last leap second on June 30th, 2012, at that time Reddit gone offline one and a half hours, Gawker, LinkedIn and
The websites such as Yelp are all absorbed in temporary service interruptions state.In addition, Major Airlines reservation system Amadeus Altea also by
The navigation system of AUSTRALIAN AIRLINES causes confusion and causes flight to be counted under influence, AUSTRALIAN AIRLINES and Wei Zhen
Draw and interrupt.All exist for many satellite navigation systems, and it is more crucial wherein for dipper system, for some
The many equipment of reason possibly can not normally carry out expected correct to leap second.Therefore each receiver manufacturer and equipment manufacturers,
Particularly those provide time dissemination systems manufacturer and with the department of time synchronized tight association and unit, should more have accordingly should
To measure and solution.
At present in test, stated leap second for how GNSS time synchronization system is handled, but for how to verify
The correctness of GNSS time synchronization system processing leap second does not have correlation method really.
GNSS time synchronization system obtains leap second information and basis by receiving the navigation message that Global Navigation System is broadcast
Leap second information and the navigation system time calculate UTC time.Two classes are broadly divided into during GNSS time synchronization system leap second function：The
One kind, GNSS time synchronization system can correctly obtain in navigation message leap second information and accordingly correctly output UTC time；The
Two classes, when adjusting leap second, GNSS time synchronization system adjustment information and can ensure intercalation leap second correctly in navigation by recognition text
Correct output UTC time before and after second adjustment.
It is substantially June 30 or December 31 then to adjust the time leap second leap second every time in history, therefore using in fact
The leap second function of border satellite-signal test GNSS time synchronization system does not possess versatility, can only meet first kind testing requirement,
The second class testing demand can not be met, can not test whether GNSS time synchronization system can correctly identify leap second at any time
Adjustment information.
The content of the invention
In order to solve the problems, such as that prior art is present, the present invention provides a kind of leap second detection system of GNSS time synchronization system
System, including：
Satellite navigation signal simulator, for producing navigation message；
Navigation signal control system, the satellite navigation signal simulator is connected, for configuring the satellite navigation signals
Simulator exports the leap second parameter of navigation message；And
Monitoring computer, the time parameter calculated and outputted by monitoring GNSS time synchronization system are believed with the satellite navigation
Whether the configuration status of number simulator output navigation message is consistent, judges whether the GNSS time synchronization system possesses leap second work(
Energy.
Optionally, the leap second detecting system of GNSS time synchronization system also includes atomic clock, connects the navigation signal control
System processed, for providing atomic frequency standard signal for the navigation signal control system.
Optionally, before the satellite navigation signal simulator produces navigation message, start preheating is first realized.
Optionally, the leap second parameter of the navigation message includes：Navigation signal pattern, power, leap second time information and use
Family configuration information.
Optionally, the navigation signal control system includes GPS navigation system and BDS navigation system, is respectively configured to provide
Detect scene GPS leap seconds and BDS leap seconds detect scene.
Optionally, detecting scene the GPS leap seconds includes positive leap second scene and negative leap second scene, the ginseng in positive leap second scene
Number Δ tLsF=Δ tLs+ 1s, the parameter, Δ t in negative leap second sceneLsF=Δ tLs-1s。
Optionally, detecting scene the BDS leap seconds includes positive leap second scene and negative leap second scene, the ginseng in positive leap second scene
Number Δ tLsF=Δ tLs+ 1s, the parameter, Δ t in negative leap second sceneLsF=Δ tLs-1s。
Optionally, the temporal information state change that the monitoring computer exports according to the GNSS time synchronization system is sentenced
Determine positive leap second or negative leap second, and the configuration status that text is exported with this with the satellite navigation signal simulator is compared point
Analysis.
The present invention also provides a kind of leap second detection method of GNSS time synchronization system, including：
Open the satellite navigation signal simulator for producing navigation message；
The leap second parameter of the satellite navigation signal simulator output navigation message is configured by navigation signal control system；
Run the navigation signal control system；And
The time parameter and the satellite navigation signals mould that monitoring computer monitoring GNSS time synchronization system calculates and outputs
Whether consistent intend the configuration status of device output navigation message, judge whether the GNSS time synchronization system possesses leap second function.
Optionally, the leap second detection method of described GNSS time synchronization system also includes connection atomic clock to the navigation
Whistle control system is to provide atomic frequency standard signal.
Optionally, after opening the satellite navigation signal simulator, first preheated again to its configuration parameter.
Optionally, the leap second parameter of the navigation message includes：Navigation signal pattern, power, leap second time information and use
Family configuration information.
Optionally, the navigation signal control system includes GPS navigation system and BDS navigation system, is respectively configured to provide
Detect scene GPS leap seconds and BDS leap seconds detect scene.
Optionally, detecting scene the GPS leap seconds includes positive leap second scene and negative leap second scene, the ginseng in positive leap second scene
Number Δ tLsF=Δ tLs+ 1s, the parameter, Δ t in negative leap second sceneLsF=Δ tLs-1s。
Optionally, detecting scene the BDS leap seconds includes positive leap second scene and negative leap second scene, the ginseng in positive leap second scene
Number Δ tLsF=Δ tLs+ 1s, the parameter, Δ t in negative leap second sceneLsF=Δs tLs-1s。
Optionally, the temporal information state change that the monitoring computer exports according to the GNSS time synchronization system is sentenced
Determine positive leap second or negative leap second, and the configuration status that text is exported with this with the satellite navigation signal simulator is compared point
Analysis.
The present invention is directed to existing measuring technology above shortcomings, it is proposed that a kind of leap second of GNSS time synchronization system
Detecting system, the system include the navigation signal control of satellite navigation signal simulator, the configuration satellite navigation signal simulator
System processed and monitoring computer.Monitoring computer by monitor time parameter that GNSS time synchronization system calculates and outputs with it is described
Whether the configuration status of satellite navigation signal simulator output navigation message is consistent, whether judges the GNSS time synchronization system
Possesses leap second function.The present invention also proposes a kind of leap second detection method of GNSS time synchronization system accordingly, is led based on satellite
Navigate signal simulator, easy to use, can realize that GNSS time synchronization system leap second is verified.
Brief description of the drawings
Fig. 1 be GNSS time synchronization system described in one embodiment of the invention leap second detecting system structural representation；
Fig. 2 be GNSS time synchronization system described in one embodiment of the invention leap second detection method flow chart；
Fig. 3 is GPS leap seconds to detect Sub in scene navigation message in GNSS time synchronization system described in one embodiment of the invention
Frame 4, page 18 frame structure schematic diagram；
Fig. 4 is BDS leap seconds to detect Sub in scene navigation message in GNSS time synchronization system described in one embodiment of the invention
Frame 5, page 10 frame structure schematic diagram.
Embodiment
Simulation time and textual information in view of satellite signal simulator can be edited, therefore it is same to test GNSS time
During the leap second function of step system, produce leap second information using satellite signal simulator and detect the output of GNSS time synchronization system
Whether leap second value in data is consistent with simulator leap second Configuration Values to judge whether its function correct leap second.
The present invention is described in further detail below in conjunction with the drawings and specific embodiments.Will according to following explanation and right
Book is sought, advantages and features of the invention will become apparent from.It should be noted that accompanying drawing is using very simplified form and using non-
Accurately ratio, only for the purpose of facilitating and clarifying the purpose of the embodiments of the invention.
The present invention provides a kind of leap second detecting system of GNSS time synchronization system, as shown in figure 1, including：
Satellite navigation signal simulator 10, for producing navigation message；
Navigation signal control system 20, the satellite navigation signal simulator 10 is connected, for configuring the satellite navigation
Signal simulator 10 exports the leap second parameter of navigation message；And
Monitoring computer 30, the time parameter exported by monitoring GNSS time synchronization system 40 are believed with the satellite navigation
Whether the configuration status that number simulator 10 exports text is consistent, judges whether the GNSS time synchronization system 40 possesses leap second work(
Energy.
Specifically, the leap second detecting system of the GNSS time synchronization system 40 of the present invention also includes atomic clock 50, institute is connected
Navigation signal control system 20 is stated, for providing atomic frequency standard signal for the navigation signal control system 20.It is selected
Atomic frequency standard frequency accuracy should be better than the frequency accuracy an order of magnitude of satellite navigation signal simulator 10.Satellite is led
The boat possessed navigation signal frequency of signal simulator 10 should cover the navigation that tested GNSS time synchronization system 40 can receive
Signal frequency point.
In the present embodiment, navigation signal control system 20 controls satellite navigation signal simulator 10 to export navigation message
Leap second, parameter included pattern, power, leap second time information and the customer position information of navigation signal, such as selection is examined GPS leap seconds
Survey scene, BDS leap seconds detect scene.Accordingly, navigation signal control system 20 includes GPS navigation system 21 and BDS navigation system
22, it is respectively configured to provide and detects scene GPS leap seconds and BDS leap seconds detect scene.
The present invention also provides a kind of leap second detection method of GNSS time synchronization system, as shown in Fig. 2 including：
Open the satellite navigation signal simulator for producing navigation message；
The leap second parameter of the satellite navigation signal simulator output navigation message is configured by navigation signal control system；
Run the navigation signal control system；And
Monitoring computer is believed by monitoring the time parameter that GNSS time synchronization system calculates and outputs with the satellite navigation
Whether the configuration status of number simulator output navigation message is consistent, judges whether the GNSS time synchronization system possesses leap second work(
Energy.
The present invention is described in further detail with reference to embodiment and accompanying drawing.
The first step, connect atomic clock 50, there is provided outside atomic frequency standard signal is beaten to satellite navigation signal simulator 10
Open satellite navigation signal simulator 10 and preheat more than 30min.
Second step, navigation signal control system 20 call corresponding leap second detection scene, and the scene has following features：
The simulation time of satellite navigation signal simulator 10 and dwell time (such as on May 5th, 2008 23h50min00s- are set
On May 6th, 2008 23h00min00s), (GPS navigation system 21/BDS's selection satellite navigation signals corresponding navigation system navigates
System 22), transit square angle value (such as N31 is set0、E1210)；
If detecting scene (positive leap second scene) GPS leap seconds, Sub frame4, page in the scene navigational text
In 18, WN is setLsf、DN、ΔtLs、ΔtLsFParameter value is respectively 454,2,16,17, corresponding binary system for (11000110,
00000010,00010000,00010001), as shown in Figure 3.
If detecting scene (negative leap second scene) GPS leap seconds, Sub frame4, page in the scene navigational text
In 18, it is respectively 454,2,16,15 to set WNLsf, DN, Δ tLs, Δ tLsF parameter values, and corresponding binary system is
(11000110,00000010,00010000,0001111), as shown in Figure 3.
If detecting scene (positive leap second scene) BDS leap seconds, Sub frame5, page in the scene navigational text
In 10, it is respectively 454,1,2,3 to set WNLsf, DN, Δ tLs, Δ tLsF parameter values, corresponding binary system for (11000110,
00000001,00000010,00000011), as shown in Figure 4.
If detecting scene (negative leap second scene) BDS leap seconds, Sub frame5, page in the scene navigational text
In 10, it is respectively 454,1,2,1 to set WNLsf, DN, Δ tLs, Δ tLsF parameter values, corresponding binary system for (11000110,
00000001,00000010,00000001), as shown in Figure 4.
Text parameter WNLsf, DN, Δ tLs, Δ tLsF parameter values should be according to control interface texts in above-mentioned leap second detection scene
Part rule is calculated, and carries out corresponding binary coding.After editing navigation text, preservation configuration file is corresponding leap second
Detect scene.
3rd step, operation navigation signal control system 20, calls and detects scene corresponding GPS/BDS leap seconds, satellite navigation letter
Number simulator 10 exports corresponding radiofrequency signal and leap second information；GNSS time synchronization system 40 receive corresponding radiofrequency signal and
Leap second information, the state change that monitoring computer 30 monitors the temporal information that GNSS time synchronization system 40 calculates and outputs is (just intercalation
Second or negative leap second), and analyze the uniformity that leap second is exported with satellite navigation signal simulator 10.In the present embodiment, monitoring meter
It is positive leap second and negative intercalation that the change of UTC time information state that calculation machine 30 exports according to GNSS time synchronization system 40, which judges whether,
Second, and be compared with this value set with satellite navigation signal simulator 10.
Led specifically, if monitoring computer 30 monitors the time parameter that GNSS time synchronization system 40 calculates and outputs with satellite
The configuration status of signal simulator 10 that navigates is consistent, then judges that GNSS time synchronization system 40 possesses leap second function, on the contrary then do not possess.
The present invention is directed to existing measuring technology above shortcomings, it is proposed that a kind of leap second of GNSS time synchronization system
Detecting system, the system include the navigation signal control of satellite navigation signal simulator, the configuration satellite navigation signal simulator
System processed and monitoring computer.Monitoring computer by monitor time parameter that GNSS time synchronization system calculates and outputs with it is described
Whether the configuration status of satellite navigation signal simulator output navigation message is consistent, whether judges the GNSS time synchronization system
Possesses leap second function.The present invention also proposes a kind of leap second detection method of GNSS time synchronization system accordingly, is led based on satellite
Navigate signal simulator, easy to use, can realize that GNSS time synchronization system leap second is verified.
Obviously, those skilled in the art can carry out the spirit of various changes and modification without departing from the present invention to invention
And scope.So, if these modifications and variations of the present invention belong to the claims in the present invention and its equivalent technologies scope it
Interior, then the present invention is also intended to including these changes and modification.
Claims (16)
- A kind of 1. leap second detecting system of GNSS time synchronization system, it is characterised in that including：Satellite navigation signal simulator, for producing navigation message；Navigation signal control system, the satellite navigation signal simulator is connected, for configuring the satellite navigation signals simulation Device exports the leap second parameter of navigation message；AndMonitoring computer, by monitoring time parameter and the satellite navigation signals mould that GNSS time synchronization system calculates and outputs Whether consistent intend the configuration status of device output navigation message, judge whether the GNSS time synchronization system possesses leap second function.
- 2. the leap second detecting system of GNSS time synchronization system as claimed in claim 1, it is characterised in that also including atom Clock, the navigation signal control system is connected, for providing atomic frequency standard signal for the navigation signal control system.
- 3. the leap second detecting system of GNSS time synchronization system as claimed in claim 1, it is characterised in that led in the satellite Before the signal simulator that navigates produces navigation message, start preheating is first realized.
- 4. the leap second detecting system of GNSS time synchronization system as claimed in claim 1, it is characterised in that the navigation message Leap second parameter include：Navigation signal pattern, power, leap second time information and user configuration information.
- 5. the leap second detecting system of GNSS time synchronization system as claimed in claim 1, it is characterised in that the navigation signal Control system includes GPS navigation system and BDS navigation system, is respectively configured to provide and detects scene GPS leap seconds and BDS leap seconds are detected Scene.
- 6. the leap second detecting system of GNSS time synchronization system as claimed in claim 5, it is characterised in that the GPS leap seconds Detection scene includes positive leap second scene and negative leap second scene, the parameter, Δ t in positive leap second sceneLsF=Δ tLs+ 1s, negative leap second field Parameter, Δ t in scapeLsF=Δ tLs-1s。
- 7. the leap second detecting system of GNSS time synchronization system as claimed in claim 5, it is characterised in that the BDS leap seconds Detection scene includes positive leap second scene and negative leap second scene, the parameter, Δ t in positive leap second sceneLsF=Δ tLs+ 1s, negative leap second field Parameter, Δ t in scapeLsF=ΔtLs-1s。
- 8. the leap second detecting system of GNSS time synchronization system as claimed in claim 1, it is characterised in that the monitoring calculation The temporal information state change that machine exports according to the GNSS time synchronization system judges positive leap second or negative leap second, and with this and institute The configuration status for stating satellite navigation signal simulator output text is compared.
- A kind of 9. leap second detection method of GNSS time synchronization system, it is characterised in that including：Open the satellite navigation signal simulator for producing navigation message；The leap second parameter of the satellite navigation signal simulator output navigation message is configured by navigation signal control system；Run the navigation signal control system；AndMonitoring computer is by monitoring the time parameter and the satellite navigation signals mould that GNSS time synchronization system calculates and outputs Whether consistent intend the configuration status of device output navigation message, judge whether the GNSS time synchronization system possesses leap second function.
- 10. the leap second detection method of GNSS time synchronization system as claimed in claim 9, it is characterised in that also include connection Atomic clock is to the navigation signal control system to provide atomic frequency standard signal.
- 11. the leap second detection method of GNSS time synchronization system as claimed in claim 9, it is characterised in that defended described in opening After star navigation signal simulator, first preheated again to its configuration parameter.
- 12. the leap second detection method of GNSS time synchronization system as claimed in claim 9, it is characterised in that the navigation electricity The leap second parameter of text includes：Navigation signal pattern, power, leap second time information and user configuration information.
- 13. the leap second detection method of GNSS time synchronization system as claimed in claim 9, it is characterised in that the navigation letter Number control system includes GPS navigation system and BDS navigation system, is respectively configured to provide and detects scene GPS leap seconds and BDS leap seconds are examined Survey scene.
- 14. the leap second detection method of GNSS time synchronization system as claimed in claim 13, it is characterised in that the GPS is intercalation Second detection scene includes positive leap second scene and negative leap second scene, the parameter, Δ t in positive leap second sceneLsF=Δ tLs+ 1s, negative leap second Parameter, Δ t in sceneLsF=Δ tLs-1s。
- 15. the leap second detection method of GNSS time synchronization system as claimed in claim 13, it is characterised in that the BDS is intercalation Second detection scene includes positive leap second scene and negative leap second scene, the parameter, Δ t in positive leap second sceneLsF=Δ tLs+ 1s, negative leap second Parameter, Δ t in sceneLsF=Δ tLs-1s。
- 16. the leap second detection method of GNSS time synchronization system as claimed in claim 9, it is characterised in that the monitoring meter The temporal information state change that calculation machine is exported according to the GNSS time synchronization system judges positive leap second or negative leap second, and with this with The configuration status of the satellite navigation signal simulator output text is compared.
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| CN109212558B (en) * | 2018-07-25 | 2023-06-23 | 南瑞集团有限公司 | Satellite time interference test system and test method for power system |
| CN111007712A (en) * | 2019-03-25 | 2020-04-14 | 和芯星通科技(北京)有限公司 | Leap second estimation method and device and computer-readable storage medium |
| CN115575982B (en) * | 2022-11-24 | 2023-03-28 | 中汽研软件测评(天津)有限公司 | Method, apparatus and storage medium for determining robustness of vehicle-mounted satellite positioning system |
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