CN104913842B - The vibration processing and alarm method of mobile CORS base stations - Google Patents
The vibration processing and alarm method of mobile CORS base stations Download PDFInfo
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- CN104913842B CN104913842B CN201510361876.3A CN201510361876A CN104913842B CN 104913842 B CN104913842 B CN 104913842B CN 201510361876 A CN201510361876 A CN 201510361876A CN 104913842 B CN104913842 B CN 104913842B
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Abstract
The present invention relates to a kind of vibration processing and alarm method of mobile CORS base stations, the method for the present invention installs vibrating sensor on CORS antenna bases, monitors CORS Antenna Phase Center Offsets.The working condition of mobile CORS is judged by deviating threshold values, it is ensured that the quality of positioning service, to ensure the positioning service precision of mobile CORS base stations.
Description
Technical field
The invention belongs to big-dipper satellite global positioning system technology fields, and in particular to ground CORS base stations are particularly moved
CORS base stations, for avoiding or reducing the processing method due to base station vibrations to location precision.
Background technology
Ground CORS base stations be improve big-dipper satellite global positioning system measurement accuracy means, existing ground CORS bases
It stands usually fixed, is in most cases not required to consider the influence that base station vibrates in itself.But at some in special circumstances,
If disaster occurs or during emergency processing, when original fixed ground CORS base stations are destroyed or original base station range is inadequate
When, it needs quickly to establish new ground CORS base stations, high accuracy positioning service is realized by the mobile CORS base stations of deployment.But it moves
Dynamic CORS base stations are not due to being to be permanently fixed facility, inevitable that vibration problem, and the vibration of some strength, it is possible to
The positioning service precision of CORS base stations can be impacted.In order to ensure the positioning service precision of mobile CORS base stations, Ren Menxu
Want a kind of effective vibration processing and alarm implementation method.
Invention content
The technical problems to be solved by the invention are：A kind of vibration processing and alarm method of mobile CORS base stations are provided,
To ensure the positioning service precision of mobile CORS base stations.
The present invention for solve the problems, such as set forth above the solution that uses for：
The vibration processing and alarm method of mobile CORS base stations, the mobile CORS base stations include vehicle, and vehicle is equipped with
Vibrating sensor, industrial personal computer, receiver, transmitter and CORS antennas, CORS antennas set the ceiling of vehicle by a mounting base
On, vibrating sensor is arranged in mounting base, and CORS antenna output signals input industrial personal computer by receiver, vibrating sensor
Output signal inputs industrial personal computer, industrial personal computer control transmitter；
The vibration processing of the mobile CORS base stations is specially with alarm method：
Step 1: industrial personal computer acquires the output signal of vibrating sensor and handled, extract in the setting time period
The frequency and amplitude of vibration signal；
Step 2: frequency and amplitude that step 1 is obtained are compared with frequency threshold F1, the amplitude threshold T1 set,
And make following judgement：
When the frequency that step 1 obtains is more than or equal to F1 or amplitude is more than or equal to T1, sends out and close transmitter instruction, hair
Go out alarm signal, terminate；
Or,
When the frequency that step 1 obtains is less than F1 and amplitude is less than T1, next step is carried out；
Step 3: frequency and amplitude that step 1 is obtained are compared with frequency threshold F2, the amplitude threshold T2 set,
And make following judgement：
When the frequency that step 1 obtains is more than F2 or amplitude is more than T2, in the Differential positioning broadcast message for resolving generation
It is inserted into prompting mark and is exported by transmitter broadcasts；Return to step one carries out subsequent cycle；
Or,
When the frequency that step 1 obtains is less than or equal to F2 and amplitude is less than or equal to T2, is exported and resolved by transmitter broadcasts
The Differential positioning broadcast message of generation；Return to step one carries out subsequent cycle；
The F1 is more than F2, and T1 is more than T2.
In said program, the setting time period of step 1 is 15-20 seconds, and it is to work as to extract the frequency of vibration signal and amplitude
The frequency and amplitude of the maximum vibration signal extracted in the preceding time cycle.
The advantage of the invention is that：
1st, the intelligent monitoring of mobile CORS dither effects is realized.
Mobile CORS dither effects, are primarily due to the offset that external vibration causes CORS antenna phase centers.CORS days
The offset at phase of line center can influence satellite signal receiving, and cause the reduction of positioning calculation data precision, so as to influence CORS
The quality of base station location service.The method of the present invention installs vibrating sensor on CORS antenna bases, monitors CORS antenna phases
Off-centring.The working condition of mobile CORS is judged by deviating threshold values, it is ensured that the quality of positioning service, to ensure to move
The positioning service precision of CORS base stations.
2nd, it realizes the anticipation of mobile CORS data validitys and broadcasts.
The present invention can monitor CORS antenna phase centers automatically, can be with when the frequency and amplitude of vibration are in allowed band
CORS Antenna Phase Center Offsets value is judged in allowed band, and mobile CORS systems normally broadcast differential service data；When
When the frequency and amplitude of CORS days linearly coupleds are in abnormal ranges, mobile CORS systems also broadcast one in addition to differential data is broadcast
The differential data of a antenna condition exception receives the currently received Differential positioning broadcast data of service terminal for prompting and can be used,
But positioning accuracy may be affected to some extent；The frequency and amplitude of same day linearly coupled are in unacceptable range, mobile CORS
Differential data is broadcast in system stopping, being alarmed, until antenna phase center restores normal.
Description of the drawings
Fig. 1 is the structure diagram of mobile CORS base stations critical piece.
Fig. 2 is the method for the present invention embodiment flow chart.
Specific embodiment
The present invention is further described below by embodiment, but embodiment will not be construed as limiting the invention.
As shown in Figure 1, in the vibration processing and alarm method of mobile CORS base stations, the mobile CORS base stations include vehicle
, vehicle is equipped with vibrating sensor, industrial personal computer, receiver, transmitter and CORS antennas, and CORS antennas are set by a mounting base
It puts on the ceiling of vehicle, vibrating sensor is arranged in mounting base, and CORS antenna output signals input industrial personal computer by receiver,
The output signal input industrial personal computer of vibrating sensor, industrial personal computer control transmitter；
As shown in Fig. 2, the vibration processing of the mobile CORS base stations is specially with alarm method：
Step 1: industrial personal computer acquires the output signal of vibrating sensor and handled, extract in the setting time period
The frequency and amplitude of vibration signal；
In the present embodiment, the setting time period is 15-20 seconds, and it is current time week to extract the frequency of vibration signal and amplitude
The frequency and amplitude of the maximum vibration signal extracted in phase.
Step 2: frequency and amplitude that step 1 is obtained are compared with frequency threshold F1, the amplitude threshold T1 set,
And make following judgement：
When the frequency that step 1 obtains is more than or equal to F1 or amplitude is more than or equal to T1, sends out and close transmitter instruction, hair
Go out alarm signal, terminate；
Or,
When the frequency that step 1 obtains is less than F1 and amplitude is less than T1, next step is carried out；
Step 3: frequency and amplitude that step 1 is obtained are compared with frequency threshold F2, the amplitude threshold T2 set,
And make following judgement：
When the frequency that step 1 obtains is more than F2 or amplitude is more than T2, in the Differential positioning broadcast message for resolving generation
It is inserted into prompting mark and is exported by transmitter broadcasts；Return to step one carries out subsequent cycle；
Or,
When the frequency that step 1 obtains is less than or equal to F2 and amplitude is less than or equal to T2, is exported and resolved by transmitter broadcasts
The Differential positioning broadcast message of generation；Return to step one carries out subsequent cycle；
In the present embodiment, F1, F2, T1, T2 can be previously set, and meet F1 and are more than T2 more than F2, T1.
In the embodiment of the present invention, transmitter transmitting data are binary stream data, in a manner of different messages order, respectively
It is packaged with different data formats.In order to ensure the versatility of Differential positioning service, take and most of CORS base stations phase
Same RTCM3.2 real time differential data standard specifications, wherein observing data and antenna condition data instance, definition structure with GPS
It is as follows：
Observed quantity is divided into two parts of message header and message content and forms.
Message header (Contents of the Message Header, Types 1001,1002,1003,1004:GPS
RTK Messages)
1004 message contents (Contents of the Satellite-Specific Portion of a Type
1004Message,Each Satellite–GPS Extended RTK,L1&L2)
Above-mentioned definition not within the scope of the present invention, but the premise that the present invention is implemented.In real time differential data standard specification,
Any company or mechanism can be used amounts to 95 reservation message types from 4001 to 4095.At present, 4080~4095 is occupied
With 4001~4079 is available.Compatible in RTCM3.2 to ensure, specific adopted " 4079 " message of the present invention is different as antenna condition
Normal message in step 3, when the frequency that step 1 obtains is more than F2 or amplitude is more than T2, is inserted in receiver output signal
Enter the definition of antenna condition information：
The differential data of above-mentioned antenna condition exception is also broadcast in addition to differential data is broadcast in mobile CORS systems, with
Call user's attention, the data received at this time have certain availability, but its precision may receive certain influence.
Claims (2)
1. move the vibration processing and alarm method of CORS base stations, it is characterised in that：The mobile CORS base stations include vehicle, vehicle
Be equipped with vibrating sensor, industrial personal computer, receiver, transmitter and CORS antennas, CORS antennas pass through a mounting base set vehicle
Ceiling on, vibrating sensor is arranged in mounting base, CORS antenna output signals pass through receiver input industrial personal computer, vibration
The output signal input industrial personal computer of sensor, industrial personal computer control transmitter；
The vibration processing of the mobile CORS base stations is specially with alarm method：
Step 1: industrial personal computer acquires the output signal of vibrating sensor and handled, the vibration in the setting time period is extracted
The frequency and amplitude of signal；
Step 2: frequency and amplitude that step 1 is obtained are compared with frequency threshold F1, the amplitude threshold T1 set, and are made
Go out following judgement：
When the frequency that step 1 obtains is more than or equal to F1 or amplitude is more than or equal to T1, sends out and close transmitter instruction, send out report
Alert signal, terminates；
Or,
When the frequency that step 1 obtains is less than F1 and amplitude is less than T1, next step is carried out；
Step 3: frequency and amplitude that step 1 is obtained are compared with frequency threshold F2, the amplitude threshold T2 set, and are made
Go out following judgement：
When the frequency that step 1 obtains is more than F2 or amplitude is more than T2, it is inserted into the Differential positioning broadcast message for resolving generation
Prompting mark is simultaneously exported by transmitter broadcasts；Return to step one carries out subsequent cycle；
Or,
When the frequency that step 1 obtains is less than or equal to F2 and amplitude is less than or equal to T2, is exported by transmitter broadcasts and resolve generation
Differential positioning broadcast message；Return to step one carries out subsequent cycle；
The F1 is more than F2, and T1 is more than T2.
2. vibration processing as described in claim 1 and alarm method, it is characterised in that：The setting time period of step 1 is
15-20 seconds, the frequency and amplitude for extracting vibration signal for the frequency of maximum vibration signal extracted in current time period and were shaken
Width.
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| CN201510361876.3A CN104913842B (en) | 2015-06-26 | 2015-06-26 | The vibration processing and alarm method of mobile CORS base stations |
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| CN104913842B true CN104913842B (en) | 2018-06-12 |
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| CN109597099B (en) * | 2018-12-26 | 2022-04-01 | 上海司南卫星导航技术股份有限公司 | Method for judging whether reference station receiver moves or not, OEM board card and receiver |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| GB2435129B (en) * | 2006-02-10 | 2009-11-11 | Thales Holdings Uk Plc | Antenna signal processing apparatus |
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| CN1916656A (en) * | 2005-08-19 | 2007-02-21 | 佛山市顺德区顺达电脑厂有限公司 | Method of hinting intensity of signal |
| CN202306796U (en) * | 2011-11-01 | 2012-07-04 | 雅帝科技股份有限公司 | Detection device capable of improving accuracy |
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| CN104330108A (en) * | 2014-10-17 | 2015-02-04 | 深圳市华信天线技术有限公司 | Fault detection method of shipborne antenna and device thereof |
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