CN107193621A - RTCM3 data decoding methods - Google Patents
RTCM3 data decoding methods Download PDFInfo
- Publication number
- CN107193621A CN107193621A CN201710316163.4A CN201710316163A CN107193621A CN 107193621 A CN107193621 A CN 107193621A CN 201710316163 A CN201710316163 A CN 201710316163A CN 107193621 A CN107193621 A CN 107193621A
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- rtcm3
- data
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- files
- decoding
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F8/00—Arrangements for software engineering
- G06F8/40—Transformation of program code
- G06F8/41—Compilation
- G06F8/44—Encoding
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
- H04L69/26—Special purpose or proprietary protocols or architectures
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- General Engineering & Computer Science (AREA)
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- Computer Security & Cryptography (AREA)
- Computer Networks & Wireless Communication (AREA)
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Abstract
The invention provides a kind of RTCM3 data decoding methods, step is as follows：Step 1, program starts；Step 2, RTCM3 data-message masterplate files are read in；Step 3, judge whether RTCM3 data-message masterplate files load success；If loaded successfully, step 4 is performed；If loading failure, performs step 8；Step 4, checking work is carried out；Step 5, judge whether to be proved to be successful；If be proved to be successful, step 6 is performed；If authentication failed, output error carries out error handle, performs step 8；Step 6, program file is generated；Step 7, RTCM3 message encoding and decoding files are automatically generated, step 9 is performed；Step 8, failure handling is done, step 9 is performed；Step 9, EP (end of program).The present invention proposes templated concept, automatically generates RTCM3 data encoding and decoding files, improves code efficiency, reduces the introducing of mistake, realizes encoding and decoding procedure.
Description
Technical field
The present invention relates to data decoding technique field, and in particular to a kind of RTCM3 data decoding methods.
Background technology
The international ocean shipping cause radiotechnics committee (RTCM, Radio Technical Commission for
Maritime Services) it is proposed a variety of DIFFERENTIAL PROTOCOL standards, and wherein RTCM3 agreements refer to now official and issued
RTCM3.0/RTCM3.1/RTCM3.2 agreements.
Gradually popularized with location data service, carrying out data with RTCM3 data formats broadcasts gradually for market
Received.The current decoding process for being directed to RTCM3 data formats, mainly enters item by item according to the content defined in RTCM3 documents
Row encoding and decoding work, and so cause the encoding and decoding program for RTCM3 to vary with each individual, while it is templated to be not easily achieved procedure,
Artificial mistake is readily incorporated, causes to expend substantial amounts of manpower progress test checking and problem investigation.RTCM3 data format bags
Containing substantial amounts of message format, encoding and decoding are carried out with traditional method for each message format, are unfavorable for quick response business
Demand.
Prior art shortcoming：
1st, it is error-prone.Current RTCM3 code encoding/decoding modes, need item by item cutting message to carry out, are compiled line by line during exploitation
Code, is easier error during cutting mistake.
2nd, investigate difficult.According to upper, once error is, it is necessary to which code investigation problem line by line, efficiency comparison is low.
3rd, it is maintainable poor, it is readable poor.People different at present enter encoding and decoding using different code encoding/decoding modes, and style is poor
Different larger, other developers safeguard relatively difficult, readable poor.
The content of the invention
The present invention solves traditional RTCM3 encoding and decoding and defined according to RTCM3 Protocol documents with following the prescribed order, one by one data
Item carries out encoding and decoding, without procedure, is unfavorable for the technical problem of the sub- message encoding and decoding exploitations of quick RTCM3 and checking.
The technical solution adopted by the present invention is：
A kind of RTCM3 data decoding methods, it is characterised in that step is as follows：
Step 1, program starts.
Step 2, RTCM3 data-message masterplate files are read in.
Step 3, judge whether RTCM3 data-message masterplate files load success；If loaded successfully, step 4 is performed；Such as
Fruit loading failure, performs step 8.
Step 4, checking work is carried out.
Step 5, judge whether to be proved to be successful；If be proved to be successful, step 6 is performed；If authentication failed, output error is entered
Row error handle, performs step 8.
Step 6, program file is generated.
Step 7, RTCM3 message encoding and decoding files are automatically generated, step 9 is performed.
Step 8, failure handling is done, step 9 is performed.
Step 9, EP (end of program).
Further, RTCM3 data-message masterplates file includes message name and message data in the step 2, disappears
Ceasing data item includes message modifier, RTCM3 data item, message data a title and message data order.
Further, RTCM3 encoding and decoding maker reads in RTCM3 data-message masterplate files in the step 2, according to disappearing
Cease title generation program file.
Further, the message modifier is single or repeated types.
Further, verify that work is as follows in the step 4：
Verify whether RTCM3 data-message masterplate file formats are correct；
Determine whether message modifier and data field are defined, it is ensured that definition of the field value in message data is suitable
Sequence is errorless.
Further, RTCM3 is automatically generated according to the definition of message data inside program file in the step 7 to disappear
Cease encoding and decoding file.
The beneficial effects of the present invention are, by the RTCM3 data encoding and decoding makers ground certainly, masterplate file is read, from
Dynamic generation RTCM3 data codec codes, improve code efficiency, reduce the introducing of mistake, realize encoding and decoding procedure.
Brief description of the drawings
Fig. 1 is RTCM3 data decoding methods flow chart of the present invention.
Embodiment
The present invention proposes templated concept, passes through the RTCM3 data ground certainly by analyzing RTCM3 data format documents
Encoding and decoding maker, reads RTCM3 data-message masterplate files, automatically generates RTCM3 data encoding and decoding files, improves coding effect
Rate, reduces the introducing of mistake, realizes encoding and decoding procedure.Hereinafter, the present invention is made in conjunction with the accompanying drawings and embodiments into
One step is illustrated.
The present invention is mainly made up of two parts, RTCM3 data-message masterplate files and RTCM3 encoding and decoding makers.
RTCM3 data-message masterplates file is used for the particular content that formatting definition goes out every message, including message name
With message data, wherein message data includes message modifier, RTCM3 data item, message data a title and message count
According to item.
Message modifier includes single/repeated types.Single modifiers represent the message data, disobey
Rely in other data item.Repeated modifiers represent that the message data is repeat type data item, and number of repetition is relied on
In other data item.Repeated modifier parameters represent that the message data number of repetition depends on that message data
.
RTCM3 data item is the concept abstracted according to RTCM3 data formats.RTCM3 data item illustrates described disappear
Cease service concept category of the data item in RTCM3 data format documents.Corresponding to the business in RTCM3 data format documents
, data type and valid value range.
Message data order represents the particular order in the message data RTCM3 message.
RTCM3 encoding and decoding maker reads in RTCM3 data-message masterplate files, and specific program is generated according to message name
File.RTCM3 message encoding and decoding files are automatically generated according to the definition of message data inside program file.
Fig. 1 is RTCM3 data decoding methods flow chart of the present invention, and step is as follows：
Step 1, program starts, and calls start methods.
Step 2, RTCM3 data-message masterplate files are read in, message name is RTCM1005, it will generation program filename
For RTCM1005.java program file.The data field that DF starts in program file is all in RTCM32 Standard File Formats
Defined in data field.Data field mainly includes business implication/field length/field value scope of the data field.Such as
Fruit authentication failed, then output error carries out error handle.
Step 3, judge whether RTCM3 data-message masterplate files load success；If loaded successfully, step 4 is performed；Such as
Fruit loading failure, performs step 8.
Step 4, checking work is carried out：
1) whether checking RTCM3 data-message masterplate file formats are correct.RTCM1005 includes in outermost layer as described
All fields, and start with message the definition of whole message body.
2) determine whether modifier and data field are defined.Ensure definition of order of the field value in message data
It is errorless.Be not in miss and out of order situation.
Step 5, judge whether to be proved to be successful；If be proved to be successful, step 6 is performed；If authentication failed, output error is entered
Row error handle, performs step 8；
Step 6, specific RTCM1005.java program files are generated；
Step 7, program file automatically generates RTCM3 message encoding and decoding according to the definition of RTCM3 data-message masterplate files
File, performs step 9；
Step 8, failure handling is done, step 9 is performed；
Step 9, EP (end of program).
The present invention is a kind of processed offline program, performance be not it is main pursue a goal, general computational language is such as
Java/c/c++/c# can be implemented.
Although the present invention is disclosed as above with preferred embodiment, it is not for limiting the present invention, any this area
Technical staff without departing from the spirit and scope of the present invention, may be by the methods and techniques content of the disclosure above to this hair
Bright technical scheme makes possible variation and modification, therefore, every content without departing from technical solution of the present invention, according to the present invention
Any simple modifications, equivalents, and modifications made to above example of technical spirit, belong to technical solution of the present invention
Protection domain.
Claims (6)
1. a kind of RTCM3 data decoding methods, it is characterised in that step is as follows：
Step 1, program starts；
Step 2, RTCM3 data-message masterplate files are read in；
Step 3, judge whether RTCM3 data-message masterplate files load success；If loaded successfully, step 4 is performed；If plus
Failure is carried, step 8 is performed；
Step 4, checking work is carried out；
Step 5, judge whether to be proved to be successful；If be proved to be successful, step 6 is performed；If authentication failed, output error carries out wrong
Handle by mistake, perform step 8；
Step 6, program file is generated；
Step 7, RTCM3 message encoding and decoding files are automatically generated, step 9 is performed；
Step 8, failure handling is done, step 9 is performed；
Step 9, EP (end of program).
2. a kind of RTCM3 data decoding methods as claimed in claim 1, it is characterised in that RTCM3 data in the step 2
Message masterplate file includes message name and message data, and message data includes message modifier, RTCM3 data item, disappeared
Cease data item title and message data order.
3. a kind of RTCM3 data decoding methods as claimed in claim 2, it is characterised in that RTCM3 compiles solution in the step 2
Code generator reads in RTCM3 data-message masterplate files, and program file is generated according to message name.
4. a kind of RTCM3 data decoding methods as claimed in claim 2, it is characterised in that the message modifier is
Single or repeated types.
5. a kind of RTCM3 data decoding methods as claimed in claim 2, it is characterised in that verify work such as in the step 4
Under：
Verify whether RTCM3 data-message masterplate file formats are correct；
Determine whether message modifier and data field defined, it is ensured that definition of order of the field value in message data without
By mistake.
6. a kind of RTCM3 data decoding methods as claimed in claim 2, it is characterised in that in program file in the step 7
The internal definition according to message data automatically generates RTCM3 message encoding and decoding files.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710316163.4A CN107193621A (en) | 2017-05-06 | 2017-05-06 | RTCM3 data decoding methods |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710316163.4A CN107193621A (en) | 2017-05-06 | 2017-05-06 | RTCM3 data decoding methods |
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| Publication Number | Publication Date |
|---|---|
| CN107193621A true CN107193621A (en) | 2017-09-22 |
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| CN201710316163.4A Pending CN107193621A (en) | 2017-05-06 | 2017-05-06 | RTCM3 data decoding methods |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103138877A (en) * | 2011-11-29 | 2013-06-05 | 中国商用飞机有限责任公司 | Message decoding method and device for plane communication addressing and reporting system |
| CN105824924A (en) * | 2016-03-17 | 2016-08-03 | 孙红星 | Multifunctional GNSS data conversion system |
| CN106357889A (en) * | 2016-08-22 | 2017-01-25 | 杭州字节信息技术有限公司 | Intelligence framework of Beidou satellite communication and navigation based on Android system and application |
-
2017
- 2017-05-06 CN CN201710316163.4A patent/CN107193621A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103138877A (en) * | 2011-11-29 | 2013-06-05 | 中国商用飞机有限责任公司 | Message decoding method and device for plane communication addressing and reporting system |
| CN105824924A (en) * | 2016-03-17 | 2016-08-03 | 孙红星 | Multifunctional GNSS data conversion system |
| CN106357889A (en) * | 2016-08-22 | 2017-01-25 | 杭州字节信息技术有限公司 | Intelligence framework of Beidou satellite communication and navigation based on Android system and application |
Non-Patent Citations (2)
| Title |
|---|
| 张子林: "DGPS中RTCM数据解码分析与RINEX文件生成", 《现代测绘》 * |
| 毕学军 等: "可变消息格式报文编解码工具设计", 《兵器装备工程学报》 * |
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Application publication date: 20170922 |