CN108156227A - A kind of information distributing system and method - Google Patents
A kind of information distributing system and method Download PDFInfo
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- CN108156227A CN108156227A CN201711351363.XA CN201711351363A CN108156227A CN 108156227 A CN108156227 A CN 108156227A CN 201711351363 A CN201711351363 A CN 201711351363A CN 108156227 A CN108156227 A CN 108156227A
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- 238000000034 method Methods 0.000 title claims abstract description 11
- 238000012550 audit Methods 0.000 claims abstract description 38
- 238000007689 inspection Methods 0.000 claims abstract description 24
- 238000012544 monitoring process Methods 0.000 claims abstract description 21
- 238000012546 transfer Methods 0.000 claims abstract description 8
- 238000012795 verification Methods 0.000 claims description 23
- 238000012937 correction Methods 0.000 claims description 16
- 239000005433 ionosphere Substances 0.000 claims description 12
- 238000002716 delivery method Methods 0.000 claims description 11
- 238000004519 manufacturing process Methods 0.000 claims description 11
- 238000012163 sequencing technique Methods 0.000 claims description 9
- 230000008685 targeting Effects 0.000 claims description 9
- 238000005516 engineering process Methods 0.000 abstract description 4
- 238000004891 communication Methods 0.000 abstract description 2
- 239000000047 product Substances 0.000 description 247
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- 230000008859 change Effects 0.000 description 6
- 238000010276 construction Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 229910002056 binary alloy Inorganic materials 0.000 description 2
- 238000012217 deletion Methods 0.000 description 2
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- 239000002574 poison Substances 0.000 description 1
- 231100000614 poison Toxicity 0.000 description 1
- 230000003612 virological effect Effects 0.000 description 1
Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/50—Network services
- H04L67/53—Network services using third party service providers
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/50—Network services
- H04L67/51—Discovery or management thereof, e.g. service location protocol [SLP] or web services
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Abstract
The present embodiments relate to fields of communication technology, disclose a kind of information distributing system and method, including：GPS wide area differential GPS real-time service system is used to carry out the operation that tags to realtime product data flow, product content Audit Module is used to audit to tagged realtime product data flow, Product Safety checks that module is used to carry out Product Safety inspection to realtime product data flow, illegal contents monitoring module is used to be monitored realtime product data flow, product removes label model for by realtime product data diffluence label, product landing protocol module to be used to that the realtime product data flow after label will to be gone to be stored as binary file and decoded product documentation；Product broadcasting module is used to that the realtime product data flow after label will to be gone to broadcast.The information broadcast outward by information distributing system GNSS navigator fix service systems can just transfer out after checking, ensure that GNSS navigator fix service systems broadcast accuracy and the safety of information.
Description
Technical field
The present embodiments relate to field of communication technology, more particularly to a kind of information distributing system and method.
Background technology
The International Maritime radiotechnics committee (Radio Technical Commission for Maritime
Service, RTCM) it promotes the use Differential Global Positioning System business for the whole world in November nineteen eighty-three and sets up SC-104 and specially entrust
Member's meeting for proving the various methods for providing Differential Global Positioning System business, and formulates various data format standards, and RTCM is existing
There are multiple versions.Domestic manufacturers are providing Global Satellite Navigation System (Global Navigation Satellite
System, GNSS) data product service when, usually using RTCM message codings.
Inventor has found that at least there are the following problems in the prior art：RTCM format is the enhancing production of GNSS navigator fixs actually
The professional standard of product, but because its structure discloses, disabled user once obtains access point, can be distorted according to standard each from the whole nation
The real-time stream of the base station on ground causes GNSS navigator fixs service system to be paralysed, even if GNSS navigator fix service systems
Information can be still broadcast outward, and the information broadcast outward is also due to arbitrarily distort and cause the inaccuracy of information.Therefore
It is badly in need of accuracy and safety that a kind of effective method ensures the information broadcast outward from GNSS navigator fix service systems.
Invention content
Embodiment of the present invention is designed to provide a kind of information distributing system and method so that GNSS navigator fixs take
The information that business system is broadcast outward can just transfer out after checking, ensure that GNSS navigator fix service systems broadcast letter
The accuracy of breath and safety.
In order to solve the above technical problems, embodiments of the present invention provide a kind of information distributing system, including：Wide area is poor
Real-time service system, product content Audit Module, Product Safety is divided to check that module, illegal contents monitoring module, product go to mark
Sign module, product landing protocol module, product broadcasting module；
GPS wide area differential GPS real-time service system is used to by realtime product data flow tag to be transferred in product after operation
Hold Audit Module；
Product content Audit Module is for auditing to tagged realtime product data flow, and by qualified reality of auditing
When product data be streaming to Product Safety check module；
Product Safety checks that module is used to carry out Product Safety inspection to the qualified realtime product data flow of audit, if
Realtime product data flow is deleted and sends out early warning not conform to rule by inspection result, if inspection result be it is legal if will
Realtime product data stream transmitting is monitored to illegal contents and warning module；
Illegal contents monitoring module is for being monitored the fileinfo included in realtime product data flow, if not meeting
It is required that then realtime product data flow is deleted and sends out early warning；By realtime product data stream transmitting if meeting the requirements
Label model is removed to product；
Product removes label model for realtime product data flow to be carried out tag operational, and will go the real-time production after label
Product data stream transmitting lands protocol module and product broadcasting module to product；
Product landing protocol module is used to that the realtime product data flow after label will to be gone to be stored as binary file and decoding
Product documentation afterwards；
Product broadcasting module is used to that the realtime product data flow after label will to be gone to broadcast.
Embodiments of the present invention additionally provide a kind of information delivery method, including：GPS wide area differential GPS real-time service system will
Realtime product data flow, which tag, is transferred to product content Audit Module after operation；
Product content Audit Module audits to tagged realtime product data flow, and by qualified real-time production of auditing
Product data stream transmitting checks module to Product Safety；
Product Safety checks that module carries out Product Safety inspection to the qualified realtime product data flow of audit, if checking
As a result realtime product data flow is deleted and sends out early warning not to be conformed to rule, if inspection result be it is legal if will be real-time
Product data are streaming to illegal contents monitoring and warning module；
Illegal contents monitoring module is monitored the fileinfo included in realtime product data flow, if undesirable
Then realtime product data flow is deleted and sends out early warning；By realtime product data stream transmitting to production if meeting the requirements
Product remove label model；
Product goes label model that realtime product data flow carried out tag operational, and will remove the realtime product number after label
Protocol module and product broadcasting module are landed according to product is streaming to；
Realtime product data flow after product landing protocol module will remove label is stored as binary file and decoded
Product documentation；
Realtime product data flow after product broadcasting module will remove label is broadcast.
Embodiment of the present invention in terms of existing technologies, by establish by GPS wide area differential GPS real-time service system, product
Content auditing module, Product Safety check that module, illegal contents monitoring module, product go label model, product landing stipulations
The information distributing system of module, product broadcasting module composition so that the information warp that GNSS navigator fix service systems are broadcast outward
Crossing inspection can just transfer out later, ensure that GNSS navigator fix service systems broadcast accuracy and the safety of information.
In addition, realtime product data flow includes：Track clock correction realtime product data flow and ionosphere realtime product data flow.
The realtime product data flow of transmission includes track clock correction and two kinds of ionosphere form, ensure that the more of system transmitting data stream type
Sample.
In addition, tagged realtime product data flow is made of the realtime product data flow of verification label and specified format；
Verification label is made of targeting sequencing, product size, examination code and check code；
It is empty for International Maritime radiotechnics committee 3.2- states that the realtime product data flow of specified format includes form
Between represent RTCM3.2-SSR data.The structure of form and label to realtime product product data stream carries out stringent regulation, protects
The safety for broadcasting traffic flow information is demonstrate,proved.
In addition, Product Safety checks that module is specifically used for verifying the structure of label and the realtime product number of specified format
It is checked according to the content format of stream.
In addition, product content Audit Module is deployed on audit server, product landing protocol module is deployed in product and falls
On ground specification server, Product Safety checks that module is deployed in first server, illegal contents monitoring and warning module portion
On second server, product goes label model to be deployed on transfer server for administration, and product broadcasting module is deployed in the 4th service
On device.
It is further included in addition, realtime product data flow tag before operating by GPS wide area differential GPS real-time service system：It is right
Realtime product data flow is decoded, and is read the survey station information obtained after realtime product data stream, is judged that survey station information is
It is no correct.Before tagging to realtime product data flow, first to the correct of the survey station information that is decoded in data flow
Property is judged, is deleted incorrect before tagging, is further ensured the safety for broadcasting data.
Description of the drawings
One or more embodiments are illustrated by the picture in corresponding attached drawing, these exemplary theorys
The bright restriction not formed to embodiment, the element for having same reference numbers label in attached drawing are expressed as similar element, remove
Non- have a special statement, and composition does not limit the figure in attached drawing.
Fig. 1 is a kind of structure chart of information distributing system of first embodiment of the invention；
Fig. 2 is a kind of deployment architecture schematic diagram of information distributing system of first embodiment of the invention；
Fig. 3 is a kind of flow chart of information delivery method of third embodiment of the invention；
Fig. 4 is a kind of flow chart of information delivery method of four embodiment of the invention.
Specific embodiment
Purpose, technical scheme and advantage to make the embodiment of the present invention are clearer, below in conjunction with attached drawing to the present invention
Each embodiment be explained in detail.However, it will be understood by those skilled in the art that in each embodiment party of the present invention
In formula, in order to make the reader understand this application better, many technical details are proposed.But even if without these technical details
And various changes and modifications based on the following respective embodiments, it can also realize the application technical solution claimed.
The first embodiment of the present invention is related to a kind of information distributing systems.Concrete structure is as shown in Figure 1, specifically include：
GPS wide area differential GPS real-time service system 11, product content Audit Module 12, Product Safety check module 13, illegal contents monitoring mould
Block 14, product go label model 15, product landing protocol module 16, product broadcasting module 17.
GPS wide area differential GPS real-time service system 11 is used to by realtime product data flow tag to be transferred to product after operation
Content auditing module 12.Product content Audit Module 12 will be examined for auditing to tagged realtime product data flow
It counts qualified realtime product data stream transmitting and checks module 13 to Product Safety.Product Safety checks that module 13 is used for examining
The qualified realtime product data flow of meter carries out Product Safety inspection, if inspection result is does not conform to rule by realtime product data flow
It is deleted and sends out early warning, if inspection result illegal contents to be given to monitor mould realtime product data stream transmitting if legal
Block 14.Illegal contents monitoring module 14 is for being monitored the fileinfo included in realtime product data flow, if not meeting
It is required that then realtime product data flow is deleted and sends out early warning；By realtime product data stream transmitting if meeting the requirements
Label model 15 is removed to product.Product removes label model 15 for realtime product data flow to be carried out tag operational, and will go
Realtime product data stream transmitting after label lands protocol module 16 and product broadcasting module 17 to product.Product lands stipulations mould
Block 16 is used to that the realtime product data flow after label will to be gone to be stored as binary file and decoded product documentation.Product is broadcast
Module 17 is used to that the realtime product data flow after label will to be gone to broadcast.
It should be noted that in present embodiment, the realtime product broadcast data flow is needed to be produced in real time including track clock correction
Product data flow and ionosphere realtime product data flow.Wherein, the form that track clock correction realtime product data flow is broadcast is state
Border Maritime Radio Technical Committee 3.2- state-space representations (Radio Technical Commission for
Maritime Service3.2-State Space Representation, RTCM3.2-SSR), and it is divided into global location
System (Global Positioning System, GPS) text type and GLONASS Global Satellite Navigation System (Global
Navigation Satellite System, GLONSS) text type, wherein, GPS texts type and GLONSS text types
Used text field type differs.The text type that ionosphere realtime product data flow is broadcast is divided into ionosphere ball
Face reconciliation model and ionosphere grid model.
Wherein, GPS tracks clock correction header file information is as shown in table 1, and GPS track clock correction body fileinfos are as shown in table 2,
GLONSS track clock correction header file information is as shown in table 3, and GLONSS track clock correction body fileinfos are as shown in table 4.Ionosphere ball
The header file information of face reconciliation model is as shown in table 5, and the body fileinfo of ionosphere spherical harmonics model is as shown in table 6, ionization
The header file information of layer grid model is as shown in table 7, and the body fileinfo of ionospheric grid model is as shown in table 8.Different type
Realtime product data flow respectively according to table 1 to table 8 shown in the format contents of different fileinfos broadcast.Wherein,
What alphabetical DF in data word segment number was represented is field identification, and it can be that positive number also may be used that uint, which represents data area, in data type
Think negative, uint represents data area as positive number.
Table 1GPS track clock correction header file information
| Data field | Data word segment number | Data type | Bit number | Remarks |
| Message numbering | DF002 | uint12 | 12 | - |
| Epoch time 1s | DF385 | uint20 | 20 | - |
| SSR updates interval | DF391 | bit4 | 4 | - |
| A variety of text indexs | DF388 | bit1 | 1 | - |
| IODSSR | DF413 | uint4 | 4 | - |
| SSR suppliers ID | DF414 | uint16 | 16 | - |
| SSR resolves ID | DF415 | uint4 | 4 | - |
| Satellite number | DF387 | uint6 | 6 | - |
| It is total | - | - | 68 | - |
2 GPS track clock correction body fileinfos of table
| Data field | Field number | Data type | Bit number |
| GPS satellite ID | DF068 | uint6 | 6 |
| GPSIODE | DF071 | uint8 | 8 |
| Track radial direction reduction | DF365 | int22 | 22 |
| The tangential reduction of track | DF366 | int20 | 20 |
| Track normal direction reduction | DF367 | int20 | 20 |
| Track radial direction reduction change rate | DF368 | int21 | 21 |
| Track cuts reduction change rate | DF369 | int19 | 19 |
| Track normal direction reduction change rate | DF370 | int19 | 19 |
| Clock correction coefficient C0 | DF376 | int22 | 22 |
| Clock drift coefficient C1 | DF377 | int21 | 21 |
| Clock bleachability coefficient C2 | DF378 | int27 | 27 |
| It is total | - | - | 205 |
3 GLONSS track clock correction header file information of table
4 GLONSS track clock correction body fileinfos of table
| Data field | Field number | Data type | Bit number |
| GLONASS satellite ID | DF384 | uint5 | 5 |
| GLONASSIODE | DF392 | bit8 | 8 |
| Track radial direction reduction | DF365 | int22 | 22 |
| The tangential reduction of track | DF366 | int20 | 20 |
| Track normal direction reduction | DF367 | int20 | 20 |
| Track radial direction reduction change rate | DF368 | int21 | 21 |
| Track cuts reduction change rate | DF369 | int19 | 19 |
| Track normal direction reduction change rate | DF370 | int19 | 19 |
| Clock correction coefficient C0 | DF376 | int22 | 22 |
| Clock drift coefficient C1 | DF377 | int21 | 21 |
| Clock bleachability coefficient C2 | DF378 | int27 | 27 |
| It is total | - | - | 204 |
The header file information of 5 ionosphere spherical harmonics model of table
| Data field | Data word segment number | Data type | Bit number | Remarks |
| Message numbering | DF002 | uint12 | 12 | Text compiles 1226 |
| Epoch time 1s | DF385 | uint20 | 20 | - |
| SS updates interval | DF391 | bit4 | 4 | - |
| A variety of text indexs | DF388 | bit(1) | 1 | - |
| IODSSR | DF413 | uint4 | 4 | - |
| SS suppliers ID | DF414 | uint16 | 16 | - |
| SSR resolves ID | DF415 | uint4 | 4 | - |
| Layer height | DF501 | uint7 | 7 | - |
| The humorous exponent number of ball | DF502 | uint4 | 4 | - |
| Humorous time of ball | DF503 | uint4 | 4 | - |
| It is total | - | - | 76 | - |
The body fileinfo of 6 ionosphere spherical harmonics model of table
| Data field | Data word segment number | Data type | Bit number | Remarks |
| Spherical harmonic coefficient C | DF504 | int18 | 18 | - |
| Spherical harmonic coefficient S | DF505 | int18 | 18 | - |
| It is total | - | - | 36 | - |
The header file information of 7 ionospheric grid model of table
The body fileinfo of 8 ionospheric grid model of table
It should be noted that GPS wide area differential GPS real-time service system 11 tags, operation refers to the real time data in specified format
Plus verification label on stream, the real-time stream for ensureing to broadcast is to meet the product for broadcasting requirement.Product Safety checks module
The content format of the realtime product data flow of 13 pairs of verification label constructions and specified format checks, for not meeting verification mark
While label structure and the realtime product data flow of specified format are deleted, early warning is sent out, is allowed users to according to pre-
Alert prompting makes corresponding operating in time.
Wherein, product content Audit Module 12 receive that GPS wide area differential GPS real-time service system 11 transmits with label
Realtime product data flow after, can audit to realtime product data flow, to the interference due to maloperation or invader
Caused by timely sieved not with the edited realtime product data flow of realtime product data flow and content of label
It removes, ensures the accuracy of realtime product data flow.
Wherein, illegal contents monitoring module 14 is used to be monitored the fileinfo included in realtime product data flow,
Realtime product data flow is deleted if undesirable and sends out early warning；By realtime product number if meeting the requirements
Label model is removed according to the product is streaming to.Because the information in realtime product data flow is in addition to coming from National primary standard station number
Outside according to center, the data file information of other different-formats such as broadcast ephemeris need to be also downloaded from outer net, to avoid outer net illegally sick
Poison or information theft software enter Intranet, and internal system file is carried out to monitor within 24 hours.For not meeting the text of naming standard
Part carries out timely early warning and deletion, to avoid further loss, such as interferes system normal operation, reveals benchmark station coordinates
Etc. confidential information etc..
It is noted that product goes label model 15 that the realtime product data flow after removing label is transferred to product respectively
Land protocol module 16 and product broadcasting module 17.Why broadcast the realtime product data flow of broadcasting requirement will be met
While be sent to product landing protocol module 16, be because product landing protocol module 16 be by satisfactory realtime product
Data flow stores product in switched sub-networks, and product data stream is stored as binary file and decoded product documentation.Wherein
Binary file is per minute to carry out single sample storage.Inspection personnel can spot-check binary system at any time or whether product documentation meets
Specification, if having sent the content that should not be sent.It, can be timely when inspection personnel has found that the information broadcast is undesirable
It was found that and the module or link that are gone wrong according to inspection result to system be adaptively adjusted.
It should be noted that multiple standalone modules that information distributing system in the present embodiment includes, need to dispose
On a different server, deployment architecture schematic diagram is as shown in Figure 2.Wherein, product content Audit Module 12 is deployed in audit clothes
It is engaged on device 21, product landing protocol module 16 is deployed on product landing specification server 25, and Product Safety checks module 13
It is deployed in first server 22, illegal contents monitoring module 14 is deployed on second server 23；Product removes label model 15
It is deployed on transfer server 24, product broadcasting module 17 is deployed on the 4th server 26.
It should be noted that the accuracy of survey station information plays an important role in Global Satellite Navigation System, therefore
It when real-time stream information distributing is carried out, is distorted to prevent survey station information by illegal user from malicious, ensures survey station letter
The accuracy of breath and safety.GPS wide area differential GPS real-time service system 11 is read real for being decoded to realtime product data flow
When the decoding of product data stream after the survey station information that obtains, judge whether survey station information correct, however, it is determined that survey station information errors are then given up
Realtime product data flow is abandoned, otherwise, audit server is transferred to after tagging to realtime product data flow.
Compared with prior art, the information distributing system in present embodiment includes GPS wide area differential GPS real-time service system, production
Product content auditing module, Product Safety check that module, illegal contents monitoring module, product go label model, product landing rule
About module, product broadcasting module.The information broadcast outward by information distributing system GNSS navigator fix service systems
It can just be transferred out after checking, ensure that GNSS navigator fix service systems broadcast accuracy and the safety of information.
Second embodiment of the present invention is related to a kind of information distributing system.Second embodiment is in first embodiment
In on the basis of, to the specific descriptions of the GPS wide area differential GPS real-time service system tagging capabilities in first embodiment.
It is marked it should be noted that GPS wide area differential GPS real-time service system 11 carries out tagged realtime product data flow by verification
The realtime product data flow of label and specified format forms.Wherein, verification label is by targeting sequencing, product size, examination code and school
Code composition is tested, it is RTCM3.2-SSR data that the realtime product data flow of specified format, which includes form,.Specifically the mode of tagging is
Add one layer of customized coding and verification label on the basis of RTCM3.2-SSR data formats, the purpose of the operation be for
It is satisfactory product to confirm the realtime product data flow broadcast.
At one in the specific implementation, targeting sequencing ensures realtime product data flow front end recognition, it is assumed that targeting sequencing is
0100011101001011, first 8 represent " G " and represent " K " for 8 afterwards, wherein " G " and " K " represents data flow front end recognition respectively
A kind of representation of content, and the fixed size of targeting sequencing is 16bit.Product size is to RTCM3.2-SSR data
Size do an explanation, typically represent the byte number of RTCM3.2-SSR data, and product size fixed size is 16bit.
Code is checked as main verification label, the purpose is to which coding mode is prevented to be replicated, particular content is to RTCM3.2-SSR numbers
According to half make 24 Cyclical Redundancy Checks (Cyclic Redundancy Check, CRC), size of data aliquant 2,
It is handled according to direct rounding, and the fixed size for checking code is 24bit.Check code particular content is in addition to verifying bit position
Entire RTCM3.2-SSR make 24 Cyclical Redundancy Checks, and check code fixed size be 24bit.
Wherein, product tags and is carried out in GPS wide area differential GPS real-time service system, reads in realtime product data flow,
Plus verification label before realtime product data flow.Product audit is carried out on audit server, and audit server, which checks, to be sent out
Data flow whether edited with label and the content of product and data flow.It is to turn in the product that product, which removes label,
It is carried out on server.Before product network publication is carried out, verification label can be removed, and the product sent in this way just meets general mark
It is accurate.
Compared with prior art, the information distributing system in present embodiment includes GPS wide area differential GPS real-time service system, production
Product content auditing module, Product Safety check that module, illegal contents monitoring module, product go label model, product landing rule
About module, product broadcasting module.The information broadcast outward by information distributing system GNSS navigator fix service systems
It can just be transferred out after checking, ensure that GNSS navigator fix service systems broadcast accuracy and the safety of information.
And by the specific operation process for tagging and going label, the product broadcast is made to meet the universal standard, further ensures and broadcasts
Send out the safety of product information.
It is noted that each module involved in present embodiment is logic module, and in practical applications, one
A logic unit can be a part for a physical unit or a physical unit, can also be with multiple physics lists
The combination of member is realized.In addition, in order to protrude the innovative part of the present invention, it will not be with solving institute of the present invention in present embodiment
The technical issues of proposition, the less close unit of relationship introduced, but this does not indicate that there is no other single in present embodiment
Member.
Third embodiment of the invention is related to a kind of information delivery method, which operates in the first or second
In the described information distributing system of embodiment, particular flow sheet is as described in Figure 3.
Step 301, GPS wide area differential GPS real-time service system tags realtime product data flow.
It should be noted that GPS wide area differential GPS real-time service system tags, operation refers to the real-time stream in specified format
Upper to add verification label, the real-time stream for ensureing to broadcast is to meet the product for broadcasting requirement.And it is to pass through Product Safety
Check that module checks the content format of the realtime product data flow of verification label construction and specified format.For not meeting
While the realtime product data flow of verification label construction and specified format is deleted, early warning is sent out.It allows users to
Corresponding operating is made according to early warning in time.
It is noted that verification label is made of targeting sequencing, product size, examination code and check code.Specified format
Realtime product data flow include form be RTCM3.2-SSR data.The specific mode of tagging is in RTCM3.2-SSR data
One layer of customized coding and verification label are added on the basis of form, the purpose of the operation is to confirm the real-time production broadcast
Product data flow is satisfactory product.Wherein, targeting sequencing ensures realtime product data flow front end recognition, and product size represents
The byte number of RTCM3.2-SSR data, examination code is as main verification label, the purpose is to which coding mode is prevented to be replicated,
Check code particular content is to being checked in addition to the entire RTCM3.2-SSR of verification bit position makees verification.
Step 302, product content Audit Module audits to realtime product data flow.
It should be noted that product content Audit Module carrying of receiving that GPS wide area differential GPS real-time service system transmits
It after the realtime product data flow of label, can audit to realtime product data flow, to being done due to maloperation or invader
Disturb and caused by not with label the edited realtime product data flow of realtime product data flow and content carry out it is timely
Screen out, ensure realtime product data flow accuracy.
Step 303, Product Safety checks that module carries out security inspection to realtime product data flow.
Wherein, Product Safety checks module to verifying in the structure of label and the realtime product data flow of specified format
Hold form further to be checked, be wanted if it is considered to the realtime product data flow for having passed through content auditing meets the form specified
It asks, and is subject to ' GK ' mark head or other identifiable marks, for underproof realtime product data flow, Wo Menyao
It is excluded and early warning.
Step 304, illegal contents monitoring module is monitored realtime product data flow.
Wherein, illegal contents contents supervision module is monitored the fileinfo included in realtime product data flow, if
It is undesirable, realtime product data flow is deleted and sends out early warning；By realtime product data if meeting the requirements
It is streaming to the product and removes label model.Because the information in realtime product data flow is in addition to coming from National primary standard station data
Outside center, the data file information of other different-formats such as broadcast ephemeris need to be also downloaded from outer net, to avoid outer net illegally viral
Or information theft software enters Intranet, and internal system file is carried out to monitor within 24 hours.For not meeting the file of naming standard,
Timely early warning and deletion are carried out, to avoid further loss, interferes the confidential letter such as system normal operation, leakage benchmark station coordinates
Breath.
Step 305, product removes label model by realtime product data diffluence label.
Wherein, if realtime product data flow has passed through illegal contents monitoring module, then it is assumed that the realtime product data flow
Meet and broadcast requirement and content safety, therefore can Web Publishing be carried out, but in Web Publishing and broadcast by broadcasting module
Preceding to need to remove on the check code label for playing mark action, the product broadcast so just meets the universal standard.
Step 306, product landing protocol module stores the realtime product for removing label, while product broadcasting module will
The realtime product data flow of label is gone to be broadcast.
It should be noted that it is in addition also sent while will meet the realtime product data flow of broadcasting requirement and broadcast
Protocol module is landed to product, is because product landing protocol module is in recon by satisfactory realtime product data flow
Net storage product, binary file and decoded product documentation are stored as by product data stream.Wherein every point of binary file
Clock carries out single sample storage.Inspection personnel can spot-check binary system at any time or whether product documentation meets specification, if send
The content that should not send.When inspection personnel has found that the information broadcast is undesirable, can in time find and according to inspection
The module or link that the fruit that comes to an end goes wrong to system are adaptively adjusted.
Compared with prior art, the information delivery method in present embodiment so that GNSS navigator fixs service system to
The information broadcast outside can just transfer out after checking, ensure that GNSS navigator fix service systems broadcast the accurate of information
Property and safety.And by the specific operation process for tagging and going label, the product broadcast is made to meet the universal standard, into one
Step ensure that the safety for broadcasting product information.
Four embodiment of the invention is related to a kind of information delivery method, and the 4th embodiment and third embodiment are substantially
It is identical, it is in place of the main distinction：Real-time stream is added in the GPS wide area differential GPS real-time service system of third embodiment
It is increased before label and the survey station information decoded in realtime product data flow is detected.Particular flow sheet is as shown in Figure 4.
Step 300, GPS wide area differential GPS real-time service system is detected the survey station information in realtime product data flow.
It should be noted that the accuracy of survey station information plays an important role in Global Satellite Navigation System, therefore
It when real-time stream information distributing is carried out, is distorted to prevent survey station information by illegal user from malicious, ensures survey station letter
The accuracy of breath and safety.GPS wide area differential GPS real-time service system can be decoded realtime product data flow, read production in real time
The survey station information obtained after product data stream, and the survey station information obtained to decoding is detected.
Wherein, GPS wide area differential GPS real-time service system is detected survey station information and specifically includes：After survey station information is obtained
The survey station information of acquisition is subjected to comparison with the survey station information in defined preset range first and judges whether survey station information is correct,
If it is determined that survey station information errors, then give up realtime product data flow, otherwise, the operation that tags is carried out to realtime product data flow,
And the realtime product data stream transmitting after tagging is to audit server.
After step 300, step 301 is performed to step 306.
Compared with prior art, the information delivery method in present embodiment so that GNSS navigator fixs service system to
The information broadcast outside can just transfer out after checking, ensure that GNSS navigator fix service systems broadcast the accurate of information
Property and safety.And by the specific operation process for tagging and going label, the product broadcast is made to meet the universal standard, into one
Step ensure that the safety for broadcasting product information.In addition, GPS wide area differential GPS real-time service system is first passed through before being tagged
Survey station information in realtime product data flow is detected, by the data flow of survey station information errors delete first without
Follow-up tagged operation, ensure that the accuracy of the data for the product broadcast.
It will be understood by those skilled in the art that the respective embodiments described above are to realize specific embodiments of the present invention,
And in practical applications, can to it, various changes can be made in the form and details, without departing from the spirit and scope of the present invention.
Claims (10)
1. a kind of information distributing system, which is characterized in that including：GPS wide area differential GPS real-time service system, product content Audit Module,
Product Safety checks that module, illegal contents monitoring module, product go label model, product landing protocol module, product to broadcast
Module；
The GPS wide area differential GPS real-time service system is used to by realtime product data flow tag to be transferred to the production after operation
Product content auditing module；
The product content Audit Module is for auditing to the tagged realtime product data flow, and it is qualified to audit
The realtime product data stream transmitting to the Product Safety check module；
The Product Safety checks that module is used to carry out Product Safety inspection to the qualified realtime product data flow of audit
It looks into, if the realtime product data flow is deleted not conform to rule and send out early warning by inspection result, if inspection result
To be legal then by the realtime product data stream transmitting to illegal contents monitoring and warning module；
The illegal contents monitoring module is for being monitored the fileinfo included in the realtime product data flow, if not
It meets the requirements, the realtime product data flow is deleted and sends out early warning；By the real-time production if meeting the requirements
Product data stream transmitting removes label model to the product；
The product removes label model for the realtime product data flow to be carried out tag operational, and will go to the institute after label
Realtime product data stream transmitting is stated to product landing protocol module and the product broadcasting module；
Product landing protocol module be used to going the realtime product data flow after label be stored as binary file and
Decoded product documentation；
The product broadcasting module is used to that the realtime product data flow after label will to be gone to broadcast.
2. information distributing system according to claim 1, which is characterized in that the realtime product data flow includes：Track
Clock correction realtime product data flow and ionosphere realtime product data flow.
3. information distributing system according to claim 1, which is characterized in that the tagged realtime product data flow by
Verify the realtime product data flow composition of label and specified format；
The verification label is made of targeting sequencing, product size, examination code and check code；
It is International Maritime radiotechnics committee 3.2- shapes that the realtime product data flow of the specified format, which includes form,
State space represents RTCM3.2-SSR data.
4. information distributing system according to claim 3, which is characterized in that the Product Safety checks that module is specifically used
It is checked in the content format of the realtime product data flow of the structure and specified format to the verification label.
5. information distributing system according to any one of claims 1 to 4, which is characterized in that the product content audit
Module is deployed on audit server, and the product landing protocol module is deployed on product landing specification server, the production
Product security inspection module is deployed in first server, and the illegal contents monitoring module is deployed on second server；Institute
Stating product goes label model to be deployed on transfer server, and the product broadcasting module is deployed on the 4th server.
6. information distributing system according to claim 5, which is characterized in that the GPS wide area differential GPS real-time service system is specific
For being decoded to the realtime product data flow, the survey station information obtained after the realtime product data stream is read,
Judge whether the survey station information is correct, however, it is determined that the survey station information errors then give up the realtime product data flow, no
Then, the audit server is transferred to after tagging to the realtime product data flow.
7. a kind of information delivery method, which is characterized in that applied to the information distributing system described in claim 1 to 6 any one
System, the method includes：
Realtime product data flow tag and be transferred in the product after operation by the GPS wide area differential GPS real-time service system
Hold Audit Module；
The product content Audit Module audits to the tagged realtime product data flow, and by qualified institute of auditing
It states realtime product data stream transmitting and checks module to the Product Safety；
The Product Safety checks that module carries out Product Safety inspection to the qualified realtime product data flow of audit, if
The realtime product data flow is deleted not conform to rule and sends out early warning by inspection result, if inspection result is legal
Then by the realtime product data stream transmitting to illegal contents monitoring and warning module；
The illegal contents monitoring module is monitored the fileinfo included in the realtime product data flow, if not meeting
It is required that then the realtime product data flow is deleted and sends out early warning；By the realtime product number if meeting the requirements
Label model is removed according to the product is streaming to；
The product goes label model that the realtime product data flow carried out tag operational, and will go the reality after label
When product data be streaming to product landing protocol module and the product broadcasting module；
The realtime product data flow after the product landing protocol module will remove label is stored as binary file and decoding
Product documentation afterwards；
The realtime product data flow after the product broadcasting module will remove label is broadcast.
8. information delivery method according to claim 7, which is characterized in that the realtime product data flow includes：Track
Clock correction realtime product data flow and ionosphere realtime product data flow.
9. information delivery method according to claim 7, which is characterized in that the tagged realtime product data flow tool
Body structure is made of the realtime product data flow of verification label and specified format；
The verification label is made of targeting sequencing, product size, examination code and check code；
It is International Maritime radiotechnics committee 3.2- shapes that the realtime product data flow of the specified format, which includes form,
State space represents RTCM3.2-SSR data.
10. information delivery method according to claim 7, which is characterized in that the GPS wide area differential GPS real-time service system will
Realtime product data flow tag operating and further include before：The realtime product data flow is decoded, described in reading
The survey station information obtained after realtime product data stream judges whether the survey station information is correct.
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