CN109257737B - A kind of Beidou long message sending device and method - Google Patents
A kind of Beidou long message sending device and method Download PDFInfo
- Publication number
- CN109257737B CN109257737B CN201811318522.0A CN201811318522A CN109257737B CN 109257737 B CN109257737 B CN 109257737B CN 201811318522 A CN201811318522 A CN 201811318522A CN 109257737 B CN109257737 B CN 109257737B
- Authority
- CN
- China
- Prior art keywords
- beidou
- card
- authentication code
- packet
- user
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W8/00—Network data management
- H04W8/18—Processing of user or subscriber data, e.g. subscribed services, user preferences or user profiles; Transfer of user or subscriber data
- H04W8/183—Processing at user equipment or user record carrier
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/14—Relay systems
- H04B7/15—Active relay systems
- H04B7/185—Space-based or airborne stations; Stations for satellite systems
- H04B7/1851—Systems using a satellite or space-based relay
- H04B7/18513—Transmission in a satellite or space-based system
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W12/00—Security arrangements; Authentication; Protecting privacy or anonymity
- H04W12/06—Authentication
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W8/00—Network data management
- H04W8/18—Processing of user or subscriber data, e.g. subscribed services, user preferences or user profiles; Transfer of user or subscriber data
- H04W8/20—Transfer of user or subscriber data
- H04W8/205—Transfer to or from user equipment or user record carrier
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Databases & Information Systems (AREA)
- Computer Security & Cryptography (AREA)
- Physics & Mathematics (AREA)
- Astronomy & Astrophysics (AREA)
- Aviation & Aerospace Engineering (AREA)
- General Physics & Mathematics (AREA)
- Radio Relay Systems (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
A kind of Beidou long message sending device and its method, the sending device include multiple Beidou virtual smart cards, single-chip microcontroller, baseband processing unit, Up/Down Conversion circuit, low-noise amplifier, power amplification circuit and Beidou transmitting antenna；Multiple described Beidou virtual smart cards have one-to-one transmitting authentication code, and long message to be sent is split into multiple short messages by the sending device, and each short message matches a transmitting authentication code and is transferred to big-dipper satellite after being packaged.The present invention is by shifting to an earlier date the transmitting authentication code of the satellite inbound of preset multiple Beidous user, and dedicated packing agreement, the function of quickly sending Beidou long message is realized, and sending device hardware design is simple, manufacturing cost is cheap, user experience greatly is improved, has widened usage scenario.
Description
Technical field
The present invention relates to two signal communication field of Beidou more particularly to Beidou long message sending devices and method.
Background technique
No. two satellite navigation systems (BD2, Beidou-2) of Beidou are the Global Satellite Navigation System of Chinese stand-alone development.It cuts
Only the end of the year 2012 had 14 satellite services at present and defend in the Asian-Pacific area, including 5 GEO satellites, 5 IGSO satellites and 4 MEO
Star.Wherein No. two 5 GEO satellites of Beidou provide short message communication function, other satellites provide navigation locating function.5 GEO are defended
Star, wherein every satellite includes 2 independent beam signals, i.e., totally 10 independent beam signals provide short message communication service.
For Beidou subscriber machine by system design limitation at that time, each subscriber computer installs 1 Zhangbei County bucket user's IC card, and Beidou user
Machine sends the frequency limit of message according to Beidou user's IC card, could send within 60 seconds primary.If sending a long message, need
The long message is split into multiple short messages, then needs repeatedly to send, and needs to wait 60 seconds after sending a message information
After could send next, therefore complete the transmission of a long message, the time is differed from a few minutes to dozens of minutes, sends and waits
Time is longer, and user experience is poor.
Therefore, the present invention provides the sending device and method of a kind of Beidou long message, it is intended to it is fast compared with long message to solve Beidou
The problem of speed is sent.
Summary of the invention
The object of the present invention is to provide the device and method thereof that a kind of Beidou long message is sent, and realize a Beidou subscriber machine
A Beidou long message can be quickly sent, while other side's receiver also can receive this message within grade time second.
In order to achieve the above objectives, the first aspect of the present invention provides a kind of Beidou long message sending device, comprising: multiple
Beidou virtual smart card, single-chip microcontroller, baseband processing unit, Up/Down Conversion circuit, low-noise amplifier, power amplification circuit and north
Struggle against transmitting antenna；
Multiple described Beidou virtual smart cards are pre-set in the sending device, have one-to-one transmitting certification
Code, and the transmitting authentication code is supplied to the single-chip microcontroller；
The single-chip microcontroller will after long message to be sent is split into multiple short messages and is packaged according to group packet protocol of unpacking
It is transmitted to baseband processing unit；
The baseband processing unit, Up/Down Conversion circuit, low-noise amplifier, power amplification circuit and Beidou transmitting antenna
It is sequentially connected, for the multiple short message to be sent to big-dipper satellite.
Further, presetting multiple described Beidou virtual smart cards includes: Beidou user's IC card by physics in advance
It is placed into the sending device, the corresponding transmitting authentication code of the Beidou user IC card of extraction every, and is stored to institute
It states in the memory of sending device.
Further, according to group packet protocol of unpacking, each short message being split into includes: packet header, packet tail, Bao Can
Several and packet content, the packet header, packet tail and bag parameter respectively occupy 1 byte；The packet header and packet tail are respectively set to constant, packet
2 expression first packets of head, tundish or the tail packet of parameter, latter 6 indicate current Bale No., and value range is 0~63, and packet content is short
The content of message.
Further, the bag parameter occupies 2 bytes to indicate, head 2 expressions first packet, tundish or tails of bag parameter
Packet, latter 14 indicate current Bale No., and value range is 0~16383.
Further, if the length of the long message is A byte, the length of the short message of fractionation is B byte, enables A divided by B
Quotient be D, remainder C；Zhangbei County bucket user's IC card is preset in the sending device, if C is not zero, by remaining C length
Text transmit away, transmitting authentication code use the Beidou user IC card feedback transmitting authentication code.
Second aspect of the present invention provides a kind of Big Dipper short message sending method, using described in any one of aforementioned technical solution
Beidou long message sending device send split after short message to big-dipper satellite, include the following steps:
Multiple virtual Beidou user IC card are preset in the sending device；Described every virtual Beidou user's IC card
With corresponding transmitting authentication code, the transmitting authentication code is supplied to the single-chip microcontroller；
The single-chip microcontroller will after long message to be sent is split into multiple short messages and is packaged according to group packet protocol of unpacking
It is transmitted to baseband processing unit；
The baseband processing unit is transmitted to Up/Down Conversion circuit after being spread the short message that the single-chip microcontroller is sent；
The Up/Down Conversion circuit is transmitted to low noise after the frequency of the spread spectrum short message received is raised and lowered and puts
Big device and power amplifier；
Short message after frequency conversion is carried out power amplification and is transmitted to north by the low-noise amplifier and power amplification circuit
Struggle against transmitting antenna；
Short message after power amplification is sent to big-dipper satellite by the Beidou transmitting antenna.
Further, presetting multiple described Beidou virtual smart cards includes: Beidou user's IC card by physics in advance
It is placed into the sending device, the corresponding transmitting authentication code of the Beidou user IC card of extraction every, and is stored to institute
It states in the memory of sending device.
Further, according to group packet protocol of unpacking, each short message being split into includes: packet header, packet tail, Bao Can
Several and packet content, the packet header, packet tail and bag parameter respectively occupy 1 byte；The packet header and packet tail are respectively set to constant, packet
2 expression first packets of head, tundish or the tail packet of parameter, latter 6 indicate current Bale No., and value range is 0~63, and packet content is short
The content of message.
Further, the bag parameter occupies 2 bytes to indicate, head 2 expressions first packet, tundish or tails of bag parameter
Packet, latter 14 indicate current Bale No., and value range is 0~16383.
Further, if the length of the long message is A byte, the length of the short message of fractionation is B byte, enables A divided by B
Quotient be D, remainder C；Default Zhangbei County bucket user's IC card transmits out the text of remaining C length if C is not zero
It goes, transmitting authentication code uses the transmitting authentication code of Beidou user IC card feedback.
In conclusion the sending device includes more the present invention provides a kind of Beidou long message sending device and its method
Zhangbei County struggle against virtual smart card, single-chip microcontroller, baseband processing unit, Up/Down Conversion circuit, low-noise amplifier, power amplification circuit and
Beidou transmitting antenna；Multiple described Beidou virtual smart cards have an one-to-one transmitting authentication code, and the sending device will be to
The long message of transmission splits into multiple short messages, and each short message matches a transmitting authentication code and is transferred to Beidou after being packaged
Satellite.
Above-mentioned technical proposal of the invention has following beneficial technical effect:
The present invention uses and presets multiple Beidou virtual smart cards, so that after long message splits into short message, it is each short
One transmitting authentication code carry out sequence transmission of message matching, solves in existing Beidou sending device per predetermined time (according to existing
Tranmitting frequency be 60 seconds/time) limitation of a short message can only be sent, then assist realizing north with dedicated group of packet protocol
Struggle against the sending method of quick long message, greatly improves user experience, has widened usage scenario.
Detailed description of the invention
Fig. 1 is the system block diagram of Beidou long message sending device of the invention；
Fig. 2 is the flow diagram that transmitting authentication code obtains in the sending device of the prior art；
Fig. 3 is the method flow schematic diagram for the transmitting authentication code that the present invention obtains Beidou user IC card；
Fig. 4 is a group packet protocol schematic diagram of unpacking of the invention；
Fig. 5 is the flow diagram of Beidou long message sending method of the invention；
Fig. 6 is the flow diagram for the specific embodiment that Beidou long message of the invention is sent.
Specific embodiment
In order to make the objectives, technical solutions and advantages of the present invention clearer, With reference to embodiment and join
According to attached drawing, the present invention is described in more detail.It should be understood that these descriptions are merely illustrative, and it is not intended to limit this hair
Bright range.In addition, in the following description, descriptions of well-known structures and technologies are omitted, to avoid this is unnecessarily obscured
The concept of invention.
As shown in Figure 1, the first aspect of the present invention provides a kind of Beidou long message sending device, comprising: multiple Beidous
Virtual smart card 1-N (N is natural number), single-chip microcontroller, baseband processing unit, Up/Down Conversion circuit, low-noise amplifier, power are put
Big circuit and Beidou transmitting antenna；Multiple Beidou virtual smart cards are pre-set in the sending device, and struggle against virtual intelligence for every Zhangbei County
Can block has corresponding transmitting authentication code, and the transmitting authentication code is supplied to single-chip microcontroller；Single-chip microcontroller is according to a group packet protocol of unpacking
Long message to be sent is split into multiple short messages, each short message carries a transmitting authentication code and is transferred to after being packaged
Baseband processing unit；Baseband processing unit, Up/Down Conversion circuit, low-noise amplifier, power amplification circuit and Beidou emit day
Line is sequentially connected, for multiple short messages to be sent to big-dipper satellite in order.
Beidou virtual smart card is key point of the invention, Big Dipper short message communication satellite in short message satellite inbound,
It is required that providing an authentication code, authentication code is effective, and the Big Dipper short message that sending device is sent by satellite reception and can be just given to pair
Square Beidou subscriber machine (receiving device).
Under normal circumstances, the acquisition for emitting authentication code is as shown in Figure 2.Single-chip microcontroller passes through before sending short message every time
Beidou user's IC card proprietary protocol transmits the parameters such as User ID, text length to be sent and framing number to Beidou user's IC card,
Then Beidou user IC card can return to a transmitting authenticator field information, at this time single-chip microcontroller will emit authenticator field information and
Short message is bundled in inbound protocol package, is sent to big-dipper satellite.
In existing Beidou message sending device, due to being generally only provided with Zhangbei County bucket user's IC card, which is used
Family IC card has corresponding transmitting authentication code.Therefore, when long message, which is split as multiple short messages, to be sent, each
It is sent again after needing the transmitting authentication code fed back with Beidou user's IC card to be packaged when short message is sent, and Beidou message is sent out
It is (existing can only to send a message information for the frequency limit for sending equipment to send message according to Beidou user's IC card in per predetermined time
Having transmission frequency is 60 seconds/time), if the text length of long message is larger, the short message number being split is more, then sends one
Long message needs to wait the long period.To improve transmission speed, the quantity for increasing Beidou user IC card can choose.But consider
Into practical application, too many physics Beidou user's IC card is such as placed in sending device, be will lead to equipment volume and is become larger, designs again
It is miscellaneous, reliability is low.The present invention reduces hardware design complexity by the way of virtual Beidou smart card, and it is reliable to promote product
Property, and lower product cost.
Multiple Beidou virtual smart cards are pre-set in the sending device, and every Zhangbei County's bucket virtual smart card has corresponding
Emit authentication code, and the transmitting authentication code is supplied to single-chip microcontroller.
Specifically, obtaining the process of transmitting authentication code as shown in figure 3, including the following steps:
Step 310, Beidou user's IC card of physics is placed into the sending device in advance.According to transmission long message length
Needs, the Beidou IC card of the physics of the quantity is sequentially placed sending device by the quantity N of Beidou user's IC card needed for calculating
In.Such as predetermined of length no more than 6592 byte for sending long message, then preset 6592/103=64 opens the Beidou user of physics
IC card is into sending device.
Step 320, according to the regulation in Beidou IC card agreement, authentication code protocols are obtained.Authentication code protocols include:
1) data length: 16BIT is occupied, i.e. 2 bytes, for indicating the length of this buffer area, it is 2 that this buffer area, which has altogether,
+ 1+3+2+2+1=11 byte；
2) classes of instructions: occupying 8BIT, i.e. 1 byte can be fixedly installed according to protocol conventions as 0x02；
3) local user ID: occupying 24BIT, i.e. 3 bytes refer to the ID number of Beidou user's IC card, fill in the physics of placement
Beidou user's IC card ID number.The ID number is stored in IC card, can be read by self-test information；
4) it responds framing number: occupying 16BIT, is i.e. 2 bytes provide that 1 framing occupies according to the outbound agreement of Beidou
31.25ms, a superframe totally 1920 frame, holding time 60 seconds；Framing value range is 0~1919, is so recycled.Communicate function
Can be to the response no requirement (NR) of framing number, therefore fixed value can be filled in here, fill out 0；
5) message length: occupying 16BIT, i.e. 2 bytes fill in maximum length 848bit specified in agreement here；
6) CRC check: occupying 1 byte, and CRC check is since data length position, to the exclusive or knot of message length position
Fruit.
Step 330, the buffer area BUFFER that the information 1-6 as above of authentication code protocols is formed to 11 bytes, passes through Beidou
User's IC card serial interface, is sent to the IC card.
Step 340, after which receives this protocol data, by Beidou user's IC card serial interface, by " authentication code " word
Segment information feedback output is to sending device.
Step 350, whether the Beidou user IC card for judging current i-th physics is last, is to extract authentication code
Terminate, otherwise return step 310.
310-350 through the above steps obtains the corresponding transmitting authentication code of each Zhangbei County's bucket user's IC card.These are emitted
Authentication code pre-deposits in the FLASH of equipment.When each device power-up, the serial authentication code being stored in FLASH is read
Into the memory of sending device, so that transmitting authentication code is called in transmission process at any time.
Further, long message must also be split into multiple independent short messages when Beidou long message is sent to send.It tears open
Package packet protocol is as shown in Figure 4.The each short message being split into includes: packet header, packet tail, bag parameter and packet content, the packet
Head, packet tail and bag parameter respectively occupy 1 byte；The packet header and packet tail are respectively set to constant, and 2 expressions of head of bag parameter are first
Packet, tundish or tail packet, latter 6 indicate current Bale No., and value range is 0~63, and packet content is the content of short message.Specifically
, a packet header is set first, occupies 1 byte, which can be set to constant " OXAD "；One packet tail is set, occupies 1
A byte can be set to constant " 0XDA ".Bag parameter can also occupy a byte, 2 bit identification of head of bag parameter be first packet, in
Between packet or last packet, as shown in figure 3,00 is expressed as head packet, 01 is expressed as tail packet, 10 is expressed as tundish, 11 is expressed as
Illegal value；Subsequent 6 indicate current Bale No., value range 0~63.Other bytes are packet content, for carrying the letter of short message
Breath.Here 3 bytes are occupied altogether come the use that packages and unpack.
The packet header constant 0XAD and packet tail constant 0XDA, user of above-mentioned setting oneself can also refer to according to actual needs
It is fixed.If the inadequate use of Bale No. value range 0~63, it can also be further added by 1 byte, such value range will be expanded to 0
~16383,16384 packets namely text length are up to (848-32) * 16384=13369344bit=1671168 word altogether
Section.
Further, if the length of the long message is A byte, the length of the short message of fractionation is B byte, enables A divided by B
Quotient be D, remainder C；Zhangbei County bucket user's IC card is preset in the sending device, this Beidou user's IC card is the IC of physics
Card, is defaulted as sending the text of remaining C byte.Even C is not zero, then transmits away the text of remaining C length, transmitting
Authentication code uses the transmitting authentication code of Beidou user's IC card feedback.
Beidou long message sending device of the invention solves sending device and exists using Beidou virtual smart card is increased in advance
The limitation that (such as every 60 seconds) can only send a short message in the predetermined cycle time for sending frequency, recycles according to Bale No. sequence
The short message being split is sent, every short message no longer needs to wait preset frequency cycle time after sending, but is packaged next
Emit authentication code to send next short message, the time of sending device itself processing data is only needed to wait in this way, in Millisecond
In time range.It assists realizing the sending method of the quick long message of Beidou with a dedicated group packet protocol of unpacking again, greatly improve
User experience, has widened usage scenario.
Second aspect of the present invention provides a kind of Big Dipper short message sending method 500, as shown in figure 5, using of the invention
Beidou long message sending device sends the short message after splitting to big-dipper satellite, includes the following steps:
Step 510, multiple virtual Beidou user IC card are preset in transmitted equipment；Every virtual Beidou user IC
Card has corresponding transmitting authentication code, which is supplied to the single-chip microcontroller in sending device.Specifically, in advance by object
Beidou user's IC card of reason is placed into the sending device, is designed the program for extracting " transmitting authentication code " in advance, is obtained every
Struggle against the corresponding transmitting authentication code of user's IC card for one Zhangbei County.These transmitting authentication codes are pre-deposited in the FLASH of sending device.
When each device power-up, the serial authentication code being stored in FLASH is read into the memory of sending device, so as to transmission process
In at any time call transmitting authentication code.
Step 520, long message to be sent is split into multiple short messages according to group packet protocol of unpacking and is packaged by single-chip microcontroller
After transmit it to baseband processing unit.The each short message being split into includes: packet header, packet tail, bag parameter and packet content, so
It is packaged and is transmitted together with the transmitting authentication code of distribution afterwards.
Step 530, baseband processing unit is transmitted to Up/Down Conversion after being spread the short message that the single-chip microcontroller is sent
Circuit.
Step 540, the Up/Down Conversion circuit is transmitted to after the frequency of the spread spectrum short message received is raised and lowered
Low-noise amplifier and power amplifier.
Step 550, the short message after frequency conversion is carried out power amplification simultaneously by the low-noise amplifier and power amplification circuit
It is transmitted to Beidou transmitting antenna.
Step 560, the short message after power amplification is sent to big-dipper satellite by the Beidou transmitting antenna.
Further, according to group packet protocol of unpacking, each short message being split into includes: packet header, packet tail, Bao Can
Several and packet content, the packet header, packet tail and bag parameter respectively occupy 1 byte；The packet header and packet tail are respectively set to constant, packet
2 expression first packets of head, tundish or the tail packet of parameter, latter 6 indicate current Bale No., and value range is 0~63, and packet content is short
The content of message.
Further, the bag parameter occupies 2 bytes to indicate, head 2 expressions first packet, tundish or tails of bag parameter
Packet, latter 14 indicate current Bale No., and value range is 0~16383.
Further, if the length of the long message is A byte, the length of the short message of fractionation is B byte, enables A divided by B
Quotient be D, remainder C；Default Zhangbei County bucket user's IC card transmits out the text of remaining C length if C is not zero
It goes, transmitting authentication code uses the transmitting authentication code of Beidou user IC card feedback.
The present invention is further detailed with a specific embodiment for quickly sending Beidou long message below, such as
Shown in Fig. 6.
First by 64 Zhangbei County bucket user's IC card, it is sequentially placed into sending device, obtains each corresponding satellite inbound
Authentication code, and this authentication code is stored into the FLASH of sending device.After booting, updated in memory.
Judge whether Beidou long message length is greater than 6592 bytes, if it is greater than 6592 bytes, then prompt text overlength, first
6592 bytes for sending head after transmission, wait and send frequency (general Beidou transmitting frequency is 60 seconds) after next time, then follow
The text of ring transmission residue length.
Then, according to Beidou long message text length to be sent, the short message quantity of fractionation is calculated.Short report is sent every time
The predetermined maximum text length of text is 106 bytes, and subtract packet header, packet tail and bag parameter occupancy fixes 3 bytes, i.e. short message
It is 103 bytes, the then maximum text length that 64 virtual authentication code circulation primaries are sent that single, which sends maximum text length, are as follows:
6592 bytes (64 × 103=6592).
Defining Beidou long message length to be sent is A, and the quotient that A is obtained divided by 103 is defined as D, remainder C.According to association
View is packaged, and the short message that sum is D is sequentially cycled through, according to the sequence of transmission, fill in corresponding bag parameter (whether
It is first packet, tail packet or tundish and current packet serial number), and corresponding virtual authentication code is filled in, then transmit
It goes out.Here it has to fill in corresponding virtual authentication code, otherwise will appear the failure of transmitting overclocking, so as to cause text transmission
It is unsuccessful.
If remainder is not 0, using Zhangbei County bucket user's IC card of the machine default, the text of remaining C length is packaged hair
It sees off, the authentication code that transmitting authentication code can be fed back with Beidou user IC card itself.
Judge whether the long message finishes, i.e., when the whole length of long message is greater than 6592 byte, when secondary value
After 6592 bytes on head are sent, also need further to cycle through remaining long message byte.If be sent, send out
The step of passing through journey terminates, and otherwise returns to " judging whether Beidou long message length is greater than 6592 bytes ", continues to remaining length
Message is sent.
The sending time of each short message successively sends the long report of of length no more than 6592 byte in Millisecond in order
Text only needs grade time second with regard to achievable, and therefore, the quick transmission of Beidou long message is achieved that.
Other side receiving end packages the series Big Dipper short message received, so according to a specified group packet protocol of unpacking
It is exported afterwards by serial ports to user, to have received a complete Beidou long message.
In conclusion the sending device includes more the present invention provides a kind of Beidou long message sending device and its method
Zhangbei County struggle against virtual smart card, single-chip microcontroller, baseband processing unit, Up/Down Conversion circuit, low-noise amplifier, power amplification circuit and
Beidou transmitting antenna；Multiple described Beidou virtual smart cards have an one-to-one transmitting authentication code, and the sending device will be to
The long message of transmission splits into multiple short messages, and each short message matches a transmitting authentication code and is transferred to Beidou after being packaged
Satellite.The present invention is assisted by the transmitting authentication code and dedicated packing for shifting to an earlier date the satellite inbound of prefabricated multiple Beidous user
View realizes the function of quickly sending Beidou long message, and sending device hardware design is simple, manufacturing cost is cheap, greatly
User experience is improved, usage scenario has been widened.
It should be understood that above-mentioned specific embodiment of the invention is used only for exemplary illustration or explains of the invention
Principle, but not to limit the present invention.Therefore, that is done without departing from the spirit and scope of the present invention is any
Modification, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.In addition, appended claims purport of the present invention
Covering the whole variations fallen into attached claim scope and boundary or this range and the equivalent form on boundary and is repairing
Change example.
Claims (8)
1. a kind of Beidou long message sending device characterized by comprising multiple Beidou virtual smart cards, single-chip microcontroller, at base band
Manage unit, Up/Down Conversion circuit, low-noise amplifier, power amplification circuit and Beidou transmitting antenna；
Multiple described Beidou virtual smart cards are pre-set in the sending device, have one-to-one transmitting authentication code,
And the transmitting authentication code is supplied to the single-chip microcontroller；
The single-chip microcontroller is passed after long message to be sent is split into multiple short messages and packing according to group packet protocol of unpacking
Transport to baseband processing unit；
The baseband processing unit, Up/Down Conversion circuit, low-noise amplifier, power amplification circuit and Beidou transmitting antenna are successively
Connection, for the multiple short message to be sent to big-dipper satellite；
Presetting multiple described Beidou virtual smart cards includes: that Beidou user's IC card of physics is placed into the transmission in advance
In equipment, the corresponding transmitting authentication code of the Beidou user IC card of extraction every, and it is stored to depositing for the sending device
In reservoir；
The corresponding transmitting authentication code of every Beidou user IC card that extracts includes:
Beidou user's IC card of required amount of physics is placed into the sending device in advance；
According to the regulation in Beidou IC card agreement, authentication code protocols are obtained；
By authentication code protocols data by Beidou user IC card serial interface, it is sent to the IC card；
It, will " transmitting authentication code " field letter by Beidou user's IC card serial interface after the IC card receives authentication code protocols data
Feedback output is ceased to sending device；
Whether the Beidou user IC card for judging present physical is last, is to extract authentication code to terminate, otherwise continues to extract.
2. Beidou long message sending device according to claim 1, which is characterized in that according to group packet protocol of unpacking,
The each short message being split into includes: packet header, packet tail, bag parameter and packet content, and the packet header, packet tail and bag parameter respectively occupy
1 byte；The packet header and packet tail are respectively set to constant, 2 expression first packets of head, tundish or the tail packet of bag parameter, and latter 6
Indicate current Bale No., value range is 0~63, and packet content is the content of short message.
3. Beidou long message sending device according to claim 2, which is characterized in that the bag parameter occupies 2 bytes
It indicates, 2 expression first packets of head, tundish or the tail packet of bag parameter, latter 14 indicate current Bale No., value range is 0~
16383。
4. Beidou long message sending device according to claim 1, which is characterized in that set the length of the long message as A
Byte, the length of the short message of fractionation are B byte, and enabling A divided by the quotient of B is D, remainder C；One is preset in the sending device
Zhangbei County's bucket user's IC card transmits away the text of remaining C length if C is not zero, and transmitting authentication code uses the north
The transmitting authentication code of the user's IC card that struggles against feedback.
5. a kind of Beidou long message sending method is set using Beidou long message according to claim 1-4 transmission
Preparation send the short message after splitting to big-dipper satellite, which comprises the steps of:
Multiple virtual Beidou user IC card are preset in the sending device；Described every virtual Beidou user's IC card has
The transmitting authentication code is supplied to the single-chip microcontroller by corresponding transmitting authentication code；
The single-chip microcontroller is passed after long message to be sent is split into multiple short messages and packing according to group packet protocol of unpacking
Transport to baseband processing unit；
The baseband processing unit is transmitted to Up/Down Conversion circuit after being spread the short message that the single-chip microcontroller is sent；
The Up/Down Conversion circuit is transmitted to low-noise amplifier after the frequency of the spread spectrum short message received is raised and lowered
And power amplifier；
Short message after frequency conversion is carried out power amplification and is transmitted to Beidou hair by the low-noise amplifier and power amplification circuit
Penetrate antenna；
Short message after power amplification is sent to big-dipper satellite by the Beidou transmitting antenna；
Presetting multiple described Beidou virtual smart cards includes: that Beidou user's IC card of physics is placed into the transmission in advance
In equipment, the corresponding transmitting authentication code of the Beidou user IC card of extraction every, and it is stored to depositing for the sending device
In reservoir；
The corresponding transmitting authentication code of every Beidou user IC card that extracts includes:
Beidou user's IC card of required amount of physics is placed into the sending device in advance；
According to the regulation in Beidou IC card agreement, authentication code protocols are obtained；
By authentication code protocols data by Beidou user IC card serial interface, it is sent to the IC card；
It, will " transmitting authentication code " field letter by Beidou user's IC card serial interface after the IC card receives authentication code protocols data
Feedback output is ceased to sending device；
Whether the Beidou user IC card for judging present physical is last, is to extract authentication code to terminate, otherwise continues to extract.
6. Beidou long message sending method according to claim 5, which is characterized in that according to group packet protocol of unpacking,
The each short message being split into includes: packet header, packet tail, bag parameter and packet content, and the packet header, packet tail and bag parameter respectively occupy
1 byte；The packet header and packet tail are respectively set to constant, 2 expression first packets of head, tundish or the tail packet of bag parameter, and latter 6
Indicate current Bale No., value range is 0~63, and packet content is the content of short message.
7. Beidou long message sending method according to claim 6, which is characterized in that the bag parameter occupies 2 bytes
It indicates, 2 expression first packets of head, tundish or the tail packet of bag parameter, latter 14 indicate current Bale No., value range is 0~
16383。
8. Beidou long message sending method according to claim 5, which is characterized in that set the length of the long message as A
Byte, the length of the short message of fractionation are B byte, and enabling A divided by the quotient of B is D, remainder C；Struggle against user's IC card for default Zhangbei County,
If C is not zero, the text of remaining C length is transmitted away, transmitting authentication code is fed back using the Beidou user IC card
Transmitting authentication code.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811318522.0A CN109257737B (en) | 2018-11-07 | 2018-11-07 | A kind of Beidou long message sending device and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811318522.0A CN109257737B (en) | 2018-11-07 | 2018-11-07 | A kind of Beidou long message sending device and method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109257737A CN109257737A (en) | 2019-01-22 |
| CN109257737B true CN109257737B (en) | 2019-11-26 |
Family
ID=65043139
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811318522.0A Active CN109257737B (en) | 2018-11-07 | 2018-11-07 | A kind of Beidou long message sending device and method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109257737B (en) |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109951840A (en) * | 2019-03-06 | 2019-06-28 | 成都国星通信有限公司 | A kind of more smart card extended methods and system |
| CN110996274A (en) * | 2019-12-04 | 2020-04-10 | 北京天海达科技有限公司 | System and method for sending picture based on Beidou short message |
| CN113038390A (en) * | 2019-12-25 | 2021-06-25 | 海鹰航空通用装备有限责任公司 | Communication method and device of Beidou short message terminal and Beidou short message terminal |
| CN113131987B (en) * | 2019-12-31 | 2022-06-07 | 上海司南卫星导航技术股份有限公司 | RDSS transmitting terminal and positioning system |
| CN111356095B (en) * | 2020-02-04 | 2021-12-14 | 北京天海达科技有限公司 | Beidou short message sharing terminal and Beidou short message receiving and sending method |
| CN112152697B (en) * | 2020-07-29 | 2022-03-22 | 国家电网有限公司 | Power service data coding transmission method and system based on Beidou short message communication |
| CN112285748A (en) * | 2020-10-09 | 2021-01-29 | 中国科学院沈阳自动化研究所 | Beidou communication and positioning system for underwater robot |
| CN113364512B (en) * | 2021-05-21 | 2022-07-08 | 广东海启星海洋科技有限公司 | Encapsulation analysis method and device for 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 |
| CN113972968A (en) * | 2021-11-19 | 2022-01-25 | 中国电子科技集团公司第三十八研究所 | Periodic short message transmission method and system based on active delay spread spectrum Aloha protocol |
| CN117241263A (en) * | 2022-06-06 | 2023-12-15 | 华为技术有限公司 | Message communication method and device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103713296A (en) * | 2013-12-31 | 2014-04-09 | 上海达华测绘有限公司 | Compass multi-card terminal device and system |
| CN103826259A (en) * | 2014-01-13 | 2014-05-28 | 上海美迪索科电子科技有限公司 | Method for realizing Beidou long message communication function by use of Beidou short message communication |
| CN105120439A (en) * | 2015-07-13 | 2015-12-02 | 宁波尚为信息技术有限公司 | Beidou long message communication method |
| CN107241133A (en) * | 2017-06-14 | 2017-10-10 | 华安星科（北京）信息技术有限公司 | A kind of soft card user terminal device of the Big Dipper and system |
| CN108183743A (en) * | 2017-12-28 | 2018-06-19 | 江苏星宇芯联电子科技有限公司 | The Beidou communication system for being used for transmission voice, picture based on soft compressed encoding |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2930535A1 (en) * | 2014-04-08 | 2015-10-14 | The European Union, represented by the European Commission | Method and system to optimise the authentication of radionavigation signals |
| US10243744B2 (en) * | 2016-06-21 | 2019-03-26 | The King Abdulaziz City For Science And Technology | Residue message authentication code |
| CN108008420A (en) * | 2017-11-30 | 2018-05-08 | 北京卫星信息工程研究所 | Beidou navigation text authentication method based on Big Dipper short message |
-
2018
- 2018-11-07 CN CN201811318522.0A patent/CN109257737B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103713296A (en) * | 2013-12-31 | 2014-04-09 | 上海达华测绘有限公司 | Compass multi-card terminal device and system |
| CN103826259A (en) * | 2014-01-13 | 2014-05-28 | 上海美迪索科电子科技有限公司 | Method for realizing Beidou long message communication function by use of Beidou short message communication |
| CN105120439A (en) * | 2015-07-13 | 2015-12-02 | 宁波尚为信息技术有限公司 | Beidou long message communication method |
| CN107241133A (en) * | 2017-06-14 | 2017-10-10 | 华安星科（北京）信息技术有限公司 | A kind of soft card user terminal device of the Big Dipper and system |
| CN108183743A (en) * | 2017-12-28 | 2018-06-19 | 江苏星宇芯联电子科技有限公司 | The Beidou communication system for being used for transmission voice, picture based on soft compressed encoding |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109257737A (en) | 2019-01-22 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109257737B (en) | A kind of Beidou long message sending device and method | |
| CN111224707B (en) | Satellite, terminal device, satellite communication system, and satellite communication method | |
| US10863578B2 (en) | Data transmission method, device and system | |
| CN101640645B (en) | Message transmission method and system | |
| CN106506508B (en) | A method of extension Big Dipper short message length | |
| CN107241133A (en) | A kind of soft card user terminal device of the Big Dipper and system | |
| CN102448098B (en) | Based on physical layer test macro and the method for ARM and DSP coenocytism | |
| CN104320416B (en) | The method and device packed to Realtime Transport Protocol data | |
| CN109952780A (en) | Method and apparatus for the radio resource measurement in wireless communication system | |
| CN108012250A (en) | Data transmission method and data transmission device | |
| CN105892345B (en) | PCM is remotely controlled system and Packet telecommand system Combined design method | |
| CN109525566A (en) | A kind of LoRaWan method for interchanging data based on enhanced MQTT message mechanism | |
| CN104780589A (en) | Method, system and terminal for realizing Wifi access of network | |
| CN106255084B (en) | In voice channel transmission, the method and its system of reception non-voice information | |
| CN107370654A (en) | A kind of encapsulation, de-encapsulation method and the relevant apparatus of pseudo-wire data message | |
| CN109547066B (en) | FPGA-based private line communication shunt control implementation method and control system | |
| CN113438633B (en) | Communication data processing method, terminal and computer readable storage medium | |
| CN108063986A (en) | Frame number bearing method, the apparatus and system of multichannel passive optical network | |
| CN106209204A (en) | It is applied to voice transmission method and the system of Big Dipper generation satellite navigation system | |
| CN101990245B (en) | Transmission method, transmission device and receiving device for relay link | |
| CN103634229B (en) | A kind of Inter-chip communication method and control device | |
| CN106330397A (en) | Method and device for implementing data interaction on ZigBee and Modbus RTU protocols | |
| US8934364B2 (en) | Method and system for aligning each dispatching service in optical transfer networks | |
| WO2017219205A1 (en) | Base station, data transmission method and apparatus | |
| CN106714005B (en) | Satellite set top box data transmission method and system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |