CN106506508B - A method of extension Big Dipper short message length - Google Patents
A method of extension Big Dipper short message length Download PDFInfo
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- CN106506508B CN106506508B CN201611018087.0A CN201611018087A CN106506508B CN 106506508 B CN106506508 B CN 106506508B CN 201611018087 A CN201611018087 A CN 201611018087A CN 106506508 B CN106506508 B CN 106506508B
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- message
- long
- short message
- beidou
- flag bit
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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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- 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
- H04L69/06—Notations for structuring of protocol data, e.g. abstract syntax notation one [ASN.1]
Abstract
The present invention provides a kind of methods for extending Big Dipper short message length, the method are as follows: 1, define single Beidou message data format, wherein, the data format of short message are as follows: short message flag bit+effective information content, the short message flag bit indicate that type of message is short message；The data format of long message are as follows: long message mark+when preceding article number+total number+end mark+message ID+ effective information content, 2, the transmission mechanism of Beidou transmitter is set, if send short message, normal flow is sent, if send long message, the message group for forming the long message need to be sent one by one, until being sent；3, the reception mechanism and analysis program of Beidou receiver are set, reception processing is carried out to message.The present invention has effectively evaded the single capabilities length limitation of Big Dipper short message, has expanded the application scenarios of Big Dipper short message.
Description
Technical field
The present invention relates to field of communication technology, in particular to a kind of method for extending Big Dipper short message length.
Background technique
All standing due to Beidou communication service in the Asian-Pacific area with Beidou civil nature progress faster, is passing in recent years
The region that system communication mode does not cover, people are also higher and higher using the frequency of Big Dipper short message, and Big Dipper short message is being met an urgent need
The fields such as relief, field work, offshore production have played important function.
Beidou generation satellite provides Big Dipper short message service, since satellite channel resource is limited, allows Beidou civilian at present
Terminal is equipped with the communication card used and is generally civilian 3 grades of cards, and every 60 seconds, a transmittable length was 78 to the communication card of this rank
The message of byte is really used for the effective byte of message transmission since partial bytes will also be used for information description and format definition
Generally 70 bytes, i.e. 35 Chinese characters or so.Under this length limitation, the information that can be transmitted is relatively limited, is unable to fully send out
Wave the due advantage of Beidou communication.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of method for extending Big Dipper short message length, extends single
Big Dipper short message length expands its use occasion.
The present invention is implemented as follows: a kind of method for extending Big Dipper short message length, described method includes following steps:
Step 1, the data format for defining single Beidou message, wherein the data format of short message are as follows: short message flag bit
+ effective information content, the short message flag bit indicate that type of message is short message；The data format of long message are as follows: long message
Mark+and when preceding article number+total number+end mark+message ID+ effective information content, the long message mark indicates type of message
It is described when preceding article number indicates sequence order of the current message in long message for long message, total number indicate long message in total by
Several short messages composition, the end mark indicate whether current message is the last item in long message, and message ID is used to mark
Know the long message；
Step 2, the transmission mechanism that Beidou transmitter is arranged, if send short message, normal flow is sent, if sending long report
Wen Shi need to send the message group for forming the long message one by one, until being sent；
Step 3, the reception mechanism and analysis program that Beidou receiver is arranged, carry out reception processing to message.
Further, by long message long message mark, when preceding article number, total number, end mark be correspondingly arranged for mark
Will position 1, flag bit 2, flag bit 3, flag bit 4, the length of each marker in messages can be configured according to demand.
Further, described to indicate flag bit 1 with 1 bit；Flag bit 2,3 is respectively indicated with 3 bits,
In, 3 bits can indicate digital 0-7, and the effective information that such long message can transmit is in 280 Chinese characters, with 1 bit table
Show that flag bit 4, whole flag bit fields account for 1 byte；With 4 byte representation message ID.
Further, the step 3 specifically: after the Beidou receiver receives Beidou message, according to long or short report
Literary flag bit judges type of message, if it is short message, then directly parses and shows；If it is long message, then marked according to end
Will position judges whether that the message group for forming the long message has been received when the relationship of preceding article number and total number, if receiving,
It then parses this message and splicing that it packages with the message cached before, finally shows；If not received, parse simultaneously
It continues waiting for receiving next message after caching this message.
Further, Beidou message can have packet loss phenomenon, and a time-out time need to be arranged, if being more than the time, not yet
New message is received, then also the message received before this is packaged, and show, to show the residue in addition to packet loss message
Information.
Further, in order to avoid the influence of packet loss completely, Beidou transmitter is given after being properly received by Beidou receiver
The means of receipt retransmit this message if Beidou transmitter confiscates receipt.
The present invention has the advantages that compared with prior art, the present invention extend the capabilities length of single Big Dipper short message,
It can accomplish no number of words limitation, improve the communication capacity of Beidou message, can be the special dimensions such as emergency, rescue, ocean, field
More powerful service ability is provided.
Detailed description of the invention
The present invention is further illustrated in conjunction with the embodiments with reference to the accompanying drawings.
Fig. 1 is the reception system schematic of existing complete Big Dipper short message.
Fig. 2 is method flow schematic diagram of the invention.
Fig. 3 is the reception mechanism of Beidou receiver of the invention and the flow diagram of analysis program.
Specific embodiment
The reception system of one complete Big Dipper short message is as shown in Figure 1, Beidou message transmitter sends short message, by north
It is sent to Beidou receiver after the transmission of bucket channel, receiver parses short message and shows effective information.Therefore in Beidou
In the case that the single byte length of short message has been fixed, needs to carry out a plurality of short message splicing group packet, can simulate
The effect of long message.This just needs to be defined single Beidou message data format, and redesigns Beidou transmitter
Send program, the reception of Beidou receiver and analysis program.
Refering to shown in Fig. 2 and Fig. 3, a kind of method of extension Big Dipper short message length of the invention, the specific steps are as follows: step
Rapid 1, the data format of single Beidou message is defined, wherein the data format of short message are as follows: short message flag bit+effective information
Content, short message flag bit (length is 1 bit) the expression type of message is short message；Ginseng is shown in Table 1
Table 1
The data format of long message are as follows: long message mark+effectively believe as preceding article number+total number+end mark+message ID+
Content is ceased, the long message mark indicates that type of message is long message, described when preceding article number indicates current message in long message
Sequence order, total number indicates that long message is made of several short messages in total, and whether the end mark indicates current message
For the last item in long message, message ID is used to identify the long message；Ginseng is shown in Table 2,
Table 2
Step 2, the transmission mechanism that Beidou transmitter is arranged, if send short message, normal flow is sent, if sending long report
Wen Shi need to send the message group for forming the long message one by one, until being sent；
Step 3, the reception mechanism and analysis program that Beidou receiver is arranged, carry out reception processing to message.
By in long message long message mark, when preceding article number, total number, end mark be correspondingly arranged for flag bit 1, mark
Position 2, flag bit 3, flag bit 4, the length of each marker in messages can be configured according to demand.
It is described to indicate flag bit 1 with 1 bit；Flag bit 2,3 is respectively indicated with 3 bits, wherein 3 bits
Position can indicate that number 0-7, the effective information that such long message can transmit meet most occasions in 280 (35*8) a Chinese characters
Under use demand；Flag bit 4 is indicated with 1 bit.In this manner it is achieved that whole identification fields account for 1 byte.Message ID
For identifying the long message, such Beidou receiver same period can be whereby when receiving the message group of a plurality of different long messages
It is distinguish, it is proposed that with 4 byte representations, need to only guarantee the uniqueness in the long message sending cycle.Above-mentioned mark
The length of position in practical applications, can be adjusted voluntarily, being theoretically obtainable long message does not have length limitation according to demand.Message
Rest part be then effective information content.
The step 3 specifically: after the Beidou receiver receives Beidou message, sentenced according to long or short message flag bit
Disconnected type of message is then directly parsed and is shown if it is short message；If it is long message, then according to end mark position, work as preceding article
Several relationships with total number judge whether that the message group for forming the long message has received, if receiving, parse this
Message and splicing that it packages with the message cached before, finally show；If not received, parses and cache this report
It continues waiting for receiving next message after text.Beidou message can have packet loss phenomenon, and a time-out time need to be arranged, should if being more than
Time does not receive new message yet, then also the message received before this packages, and show, removes packet loss message to show
Except remaining information.
Further, in order to avoid the influence of packet loss completely, Beidou transmitter is given after being properly received by Beidou receiver
The means of receipt retransmit this message if Beidou transmitter confiscates receipt.
In short, can accomplish no word compared with prior art, the present invention extend the capabilities length of single Big Dipper short message
Number limitation, improves the communication capacity of Beidou message, can provide for special dimensions such as emergency, rescue, ocean, fields more powerful
Service ability.
Although specific embodiments of the present invention have been described above, those familiar with the art should be managed
Solution, we are merely exemplary described specific embodiment, rather than for the restriction to the scope of the present invention, it is familiar with this
The technical staff in field should be covered of the invention according to modification and variation equivalent made by spirit of the invention
In scope of the claimed protection.
Claims (6)
1. a kind of method for extending Big Dipper short message length, it is characterised in that: described method includes following steps:
Step 1, the data format for defining single Beidou message, wherein the data format of short message are as follows: short message flag bit+have
The information content is imitated, the short message flag bit indicates that type of message is short message；The data format of long message are as follows: long message mark
+ when preceding article number+total number+end mark+message ID+ effective information content, the long message mark indicates that type of message is length
Message, described when preceding article number indicates sequence order of the current message in long message, total number indicates long message in total by several
Short message composition, the end mark indicate whether current message is the last item in long message, and message ID is used to identify this
Long message；
Step 2, the transmission mechanism that Beidou transmitter is arranged, if send short message, normal flow is sent, if sending long message
When, the message group for forming the long message need to be sent one by one, until being sent；
Step 3, the reception mechanism and analysis program that Beidou receiver is arranged, carry out reception processing to message.
2. a kind of method for extending Big Dipper short message length according to claim 1, it is characterised in that: will be in long message
Long message mark is correspondingly arranged as flag bit 1, flag bit 2, flag bit 3, flag bit 4 when preceding article number, total number, end mark,
The length of each flag bit in messages can be configured according to demand.
3. a kind of method for extending Big Dipper short message length according to claim 2, it is characterised in that: with 1 bit
Indicate flag bit 1；Flag bit 2,3 is respectively indicated with 3 bits, wherein 3 bits can indicate digital 0-7, report long in this way
The effective information that text can transmit indicates that flag bit 4, whole flag bit fields account for 1 byte in 280 Chinese characters, with 1 bit；
With 4 byte representation message I D.
4. a kind of method for extending Big Dipper short message length according to claim 1, it is characterised in that: step 3 tool
Body are as follows: after the Beidou receiver receives Beidou message, type of message is judged according to long or short message flag bit, if it is short
Message is then directly parsed and is shown；If it is long message, then sentence according to end mark position, when the relationship of preceding article number and total number
The disconnected message group for whether forming the long message has received, if receiving, parse this message and by its with delay before
The message deposited packages splicing, finally shows；If not received, parses and continued waiting under reception after caching this message
One message.
5. a kind of method for extending Big Dipper short message length according to claim 1, it is characterised in that: Beidou message can be deposited
In packet loss phenomenon, a time-out time need to be set, if being more than the time, do not receive new message yet, then will also be received before this
Message packages, and shows, to show the remaining information in addition to packet loss message.
6. a kind of method for extending Big Dipper short message length according to claim 1, it is characterised in that: in order to avoid completely
The influence of packet loss gives the means of Beidou transmitter receipt, if Beidou transmitter is confiscated after being properly received by Beidou receiver
Receipt then retransmits this message.
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| CN108282402B (en) * | 2018-01-24 | 2020-06-09 | 中南大学 | Packet scattering method based on coding in data center network |
| CN109639679B (en) * | 2018-12-14 | 2021-08-06 | 航天恒星科技有限公司 | Space-based measurement and control data transmission method suitable for Beidou short messages |
| CN110289934A (en) * | 2019-05-13 | 2019-09-27 | 湖北智途北斗空间信息技术有限公司 | A kind of data transmission coding coding/decoding method and system based on Big Dipper short message |
| CN110768710A (en) * | 2019-09-12 | 2020-02-07 | 厦门市森讯信息科技有限公司 | Method for realizing voice communication based on Beidou short message |
| CN111049569B (en) * | 2019-12-25 | 2024-02-09 | 中电科航空电子有限公司 | Airborne Beidou equipment, parameter updating method thereof and command control system |
| CN113316102A (en) * | 2021-05-26 | 2021-08-27 | 中国电子科技集团公司第五十四研究所 | Information high-reliability transmission method based on Beidou short message |
| CN113676844A (en) * | 2021-09-27 | 2021-11-19 | 北京星网船电科技有限公司 | Multipoint data communication method and system based on Beidou short message |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101098498A (en) * | 2006-06-28 | 2008-01-02 | 北京握奇数据系统有限公司 | Method for receiving, transmitting and displaying length-increased short message |
| CN103220648A (en) * | 2013-04-28 | 2013-07-24 | 先人掌信息科技（上海）有限公司 | Information interaction method, information interaction system and advertisement interaction method based on short message |
| CN106059848A (en) * | 2016-05-06 | 2016-10-26 | 南京大学 | BeiDou short message communication-based electric power data acquisition transmission processing system and method |
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| CN101022405B (en) * | 2006-06-23 | 2010-08-25 | 华为技术有限公司 | Universal framing rule packaging method |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101098498A (en) * | 2006-06-28 | 2008-01-02 | 北京握奇数据系统有限公司 | Method for receiving, transmitting and displaying length-increased short message |
| CN103220648A (en) * | 2013-04-28 | 2013-07-24 | 先人掌信息科技（上海）有限公司 | Information interaction method, information interaction system and advertisement interaction method based on short message |
| CN106059848A (en) * | 2016-05-06 | 2016-10-26 | 南京大学 | BeiDou short message communication-based electric power data acquisition transmission processing system and method |
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Effective date of registration: 20190529 Address after: 350000 building 51, air force Housing Authority, No. 528, Sai Hung Road, Gulou District, Fuzhou, Fujian Applicant after: Fujian province pivot Communication Technology Co., Ltd. Address before: 350000 Five Floors, 1-2 Building, 16 Xingda Road, Mawei District, Fuzhou City, Fujian Province (Free Trade Test Zone) Applicant before: Fujian space flight Xing Lian Information technology Co., Ltd |
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