CN105071974A - RDSS-based command management method of command terminal, and command terminal - Google Patents
RDSS-based command management method of command terminal, and command terminal Download PDFInfo
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- CN105071974A CN105071974A CN201510551550.7A CN201510551550A CN105071974A CN 105071974 A CN105071974 A CN 105071974A CN 201510551550 A CN201510551550 A CN 201510551550A CN 105071974 A CN105071974 A CN 105071974A
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Abstract
The invention discloses an RDSS-based command management method of a command terminal, and a command terminal. The method includes the steps: matching a captured reception channel with multiple SIM cards; and if the matching is successful, reading user information of the reception channel on the basis of the successfully matched SIM card information, and starting to monitor a user terminal corresponding to the user information. The method makes a breakthrough to overcome the problem that the number of subordinate common user terminals monitored by the command terminal with one SIM card is limited, so the command terminal can monitor and obtains report information of all subordinate common user terminals. Moreover, after big data is segmented, the big data can be distributed and transmitted to subordinate common user terminals through different SIM cards, so high-capacity cluster type command management can be achieved.
Description
Technical field
The present invention relates to technical field of satellite communication, specifically, relate to a kind of method and command terminal of the command terminal command and management based on RDSS.
Background technology
Beidou satellite navigation system is that China independently builds, independent operating, and the GPS (Global Position System) shared with other satellite navigation systems of world compatibility, has important strategic importance to the national security of China, economic construction, development in science and technology and social progress.Under the promotion of national policy, explosive growth will be realized based on the product of Beidou satellite navigation system and application system.Beidou satellite navigation system is made up of space segment, ground control and management part and user terminal three parts.As the business part of Beidou satellite navigation system, the service range of RDSS (i.e. radiodetermination-satellite service) comprises China and surrounding area, has source electricity, message communication and accurate time transmission function.
The command type user terminal (command terminal) of Beidou satellite navigation system can utilize the message of RDSS to lead to and broadcast and the commander of position message functional realiey limited quantity general subscriber terminal and monitoring.Existing traditional command type user terminal can carry out at most the command and management of 200 subordinate's general subscriber terminal, cannot support more command and management.
Summary of the invention
For overcoming the above problems, the invention provides a kind of method and command terminal of the command terminal command and management based on RDSS, in order to support the command and management of more subordinate's general subscriber terminal.
According to an aspect of the present invention, provide a kind of method of the command terminal command and management based on RDSS, comprising:
The receive channel of catching is mated with multiple SIM card;
As the match is successful, then read the user profile of described receive channel and the monitoring started user terminal corresponding to this user profile based on the SIM card information that the match is successful.
According to one embodiment of present invention, the receive channel of catching and multiple SIM card are carried out mating comprising further:
The channel information of the receive channel of catching is decomposed into the first branch road information and the second branch road information;
Based on the ID of user terminal corresponding to described first this receive channel of branch road acquisition of information;
Mate with the specific SIM card in multiple SIM card based on the ID of described user terminal.
According to one embodiment of present invention, the user profile reading described receive channel comprises further:
Read the SIM card information in described specific SIM card;
The relation of described user terminal and described command terminal is judged based on described SIM card information;
As described in user terminal belong to as described in the subordinate terminal of command terminal, then obtain the user profile of described user terminal based on described second branch road information and described SIM card information.
According to one embodiment of present invention, described SIM card information comprises: the user terminal ID that described SIM card identifies, described SIM card is corresponding, the command terminal at described SIM card place and the user terminal relation of its subordinate and corresponding encryption and decryption key.
According to one embodiment of present invention, when to obtain channel information corresponding to multiple user terminal simultaneously, parallel processing is carried out to the channel information of multiple user terminal.
According to another aspect of the present invention, additionally provide a kind of command terminal based on RDSS, comprising:
SIM card plate, it comprises integrated multiple SIM card that can work independently;
Signal-processing board, it is connected with described SIM card plate,
Wherein, described signal-processing board coordinates with described SIM card plate and is used for the receive channel of catching to mate with multiple SIM card, as the match is successful, then described signal-processing board reads the user profile of described receive channel and the monitoring started user terminal corresponding to this user profile based on the SIM card information that the match is successful.
According to one embodiment of present invention, the receive channel of catching and multiple SIM card are carried out mating comprising further:
The channel information of the receive channel of catching is decomposed into the first branch road information and the second branch road information by described signal-processing board;
Described SIM card plate is based on the ID of user terminal corresponding to described first this receive channel of branch road acquisition of information;
Described SIM card plate mates with the specific SIM card in multiple SIM card based on the ID of described user terminal.
According to one embodiment of present invention, the user profile that described signal-processing board reads described receive channel comprises further:
Described signal-processing board reads the SIM card information in described specific SIM card;
Described signal-processing board judges the relation of described user terminal and described command terminal based on described SIM card information;
As described in user terminal belong to as described in the subordinate terminal of command terminal, described signal-processing board obtains the user profile of described user terminal based on described second branch road information and described SIM card information.
According to one embodiment of present invention, between described SIM card plate and described signal-processing board, be provided with parallel-expansion interface, in order to realize the parallel processing to each SIM card.
According to one embodiment of present invention, described command terminal is placed described SIM card plate place and is provided with slide rail, plugs in described command terminal to facilitate described SIM card plate.
Beneficial effect of the present invention:
The present invention, by the data of the multiple receive channel of multiple SIM card parallel processing, breaks through the command terminal of employing one SIM card to the quantitative limitation of subordinate's general subscriber terminal number, and can supervise the reporting information receiving all subordinate's general subscriber terminal in real time.Meanwhile, after larger data also can be split by the present invention, by different SIM card to subordinate's general subscriber terminal distribution transmission, thus realize Large Copacity concentrating type command and management.
Other features and advantages of the present invention will be set forth in the following description, and, partly become apparent from specification, or understand by implementing the present invention.Object of the present invention and other advantages realize by structure specifically noted in specification, claims and accompanying drawing and obtain.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, do simple introduction by accompanying drawing required in embodiment or description of the prior art below:
Fig. 1 is command terminal structural representation according to an embodiment of the invention;
Fig. 2 is method flow diagram according to an embodiment of the invention;
Fig. 3 is that the command terminal in Fig. 1 uses flow chart; And
Fig. 4 is SIM card operating principle figure according to an embodiment of the invention.
Embodiment
Describe embodiments of the present invention in detail below with reference to drawings and Examples, to the present invention, how application technology means solve technical problem whereby, and the implementation procedure reaching technique effect can fully understand and implement according to this.It should be noted that, only otherwise form conflict, each embodiment in the present invention and each feature in each embodiment can be combined with each other, and the technical scheme formed is all within protection scope of the present invention.
Be illustrated in figure 1 command terminal structural representation according to an embodiment of the invention, below with reference to Fig. 1, the present invention is described in detail.
As shown in Figure 1, this command terminal comprises SIM card plate and signal-processing board.Wherein, SIM card plate comprises integrated multiple SIM card that can work independently; Signal-processing board is connected with SIM card plate, wherein, this signal-processing board coordinates with SIM card plate and is used for the receive channel of catching to mate with multiple SIM card, as the match is successful, then signal-processing board reads the user profile of this receive channel and the monitoring started user terminal corresponding to this user profile based on the SIM card information that the match is successful.
At present, traditional command terminal is only provided with a SIM card, and a SIM card can carry out at most 200 subordinate's user terminal command and managements, cannot support the command and management of more users terminal.In the present invention, the SIM card that multiple be can work independently is integrated on a clamp and works, this clamp is arranged on a command terminal, and every SIM card all can carry out 200 subordinate's user terminal command and managements, multiple SIM card thus realize the command and management supporting more users terminals., multiple SIM card is integrated on a SIM card plate meanwhile, realizes the command and management of identical subordinate's user terminal, the cost of manufacture of command terminal, maintenance and management difficulty can be reduced.
In one embodiment of the invention, between SIM card plate and signal-processing board, be provided with parallel-expansion interface, in order to realize the parallel processing to each SIM card respectively.Concrete, as shown in Figure 1, this parallel-expansion interface adopts complex programmable logic device (CPLD) to make.The logic processing capability powerful based on CPLD and a large amount of I/O interfaces, realize the control to multiple SIM card respectively.As shown in Figure 1, each SIM card is at least connected with the interface of 3 on CPLD, and in order to realize the sequencing control of each SIM card, resetting controls and transfer of data, can also realize the parallel processing to multiple SIM card, to improve the data-handling efficiency of command terminal.
For the application demand of multiple users cluster management, signal-processing board realizes RDSS Large Copacity concentrating type command and management and resolves realization by on-site programmable gate array FPGA and digital signal processing chip DSP process.In design, FPGA can adopt the EP2C70-F672 chip of Cyclone V series, and DSP can adopt OMAPL138BZWYD3.In the design of multiple SIM card integrated management, in order to effective room for promotion utilance, facilitate SIM card to fill simultaneously and get, multiple SIM card is integrated on SIM card plate.SIM card plate is by base plate and expansion interface and signal-processing board interconnection.Command terminal is placed SIM card plate place and is provided with slide rail, plugs in command terminal to facilitate SIM card plate.
The differentiation of different satellite is carried out based on Beidou satellite communication data acquisition spread spectrum, in the present invention, the receive channel of each satellite that correspondence captures, wherein specific spreading code is arranged to each SIM card, different spreading codes mates from different receive channels, thus identifies that command terminal corresponding to corresponding SIM card just can carry out communication for command.Concrete, the channel information of the receive channel of catching is decomposed into the first branch road information (I road information) and the second branch road information (Q road information) by signal-processing board.Next, SIM card plate carries out despreading to the first branch road information, to obtain the ID of user terminal corresponding to this receive channel of comprising in the first branch road information.Finally, signal-processing board mates with the specific SIM card in multiple SIM card based on the ID of user terminal, and this specific SIM card includes the information corresponding with specific user terminal, thus determine SIM card and user terminal mate corresponding relation.
SIM card and user terminal are after the match is successful, signal-processing board reads the SIM card information in specific SIM card, signal-processing board judges based on this SIM card information the relation stating user terminal and command terminal, as user terminal belongs to the subordinate terminal of command terminal, signal-processing board obtains the user profile of described user terminal based on the second branch road information and SIM card information.
In addition, in this SIM card plate, also comprise the peripheral equipment of parallel-expansion interface.Concrete, as the driving chip is connected with CPLD in Fig. 1, what be connected with driving chip is used to indicate the LED light that driver runs, for connecting the emulator interface of the simulator debugging CPLD.Expansion despreading between SIM card plate and signal-processing board adopts 603015 type connectors of 32 pins as expansion interface.The SIM card plate each element be also provided with wherein provides the power conversion chip of power supply.
According to another aspect of the present invention, additionally provide a kind of method of the command terminal command and management based on RDSS, be illustrated in figure 2 method flow diagram according to an embodiment of the invention, the command terminal being illustrated in figure 3 Fig. 1 uses flow chart, and below with reference to Fig. 2 and Fig. 3, the present invention is described in detail.
First, in step s 110, the receive channel of catching is mated with multiple SIM card.Concrete, in this step, it is the first branch road information (I road information) and the second branch road information (Q road information) that signal-processing board carries out base band signal process to the satellite data on the receive channel of catching, wherein, the first branch road information and the second branch road information all include the id information of user terminal.Next, SIM card plate first carries out despreading to the first branch road information, obtains the id information of user terminal wherein.Then, SIM card plate mates with the specific SIM card in multiple SIM card based on the ID of this user terminal.So-called polling mode is that total channel communicates to all command terminals that SIM card is housed, and inquiry command is sent out to command terminal by master station, and command terminal to receive after this order just exploitable channel
Before mating with multiple SIM card, need to carry out initialization operation to the SIM card in command terminal, its initialization procedure bag SIM card resets and self-inspection, and corresponding SIM card operating principle figure as shown in Figure 4.The various operations for SIM card are realized by the send_flag flag bit controlled in SIM card.
First, Send_flag is set to 0xff in initialization, then arranges needs based on different, changes the parameter such as self-inspection, encryption, reset of Send_flag, realizes corresponding operation.The parameters of SIM card comprises following several.
A) SIM card instruction functions (SIM_Card_Command ())
Function: voidSIM_Card_Command (char*pBuffer, intlen, charcommand, unsignedshortcommand_len, BD1_SIM_Card_Info_Struct*pSIMInfo)
Input parameter: Command: command type; * pSIMInfo:SIM card information structure body.
Output parameter: * pBuffer: the data that send; Len: send data length.
Function: according to command type, will send the data content framing of FPGA to.
B) calculation check sum functions (Get_Check_Code ())
Function: charGet_Check_Code (char*pBuffer, intlen)
Input parameter: * pBuffer: calculation check and data; Len: data length.
Function: calculate the School Affairs that will send FPGA data to.
C) School Affairs function (is_Check_Right ()) is checked
Function: charis_Check_Right (char*pBuffer, shortbuffer_len)
Input parameter: * pBuffer: calculation check and data; Len: data length.
Function: judge that whether the School Affairs of the data received from FPGA is correct.
D) judge to receive data type function (SIM_Parse_Report ())
Function: voidSIM_Parse_Report (char*pBuffer, shortbuffer_len, BD1_SIM_Card_Info_Struct*pSIMInfo)
Input parameter: * pBuffer: the data received from FPGA; Buffer_len: receive data length.
Output parameter: * pSIMInfo:SIM card information structure body.
Function: judge to receive data type function and the data upgraded in SIM card information structure.
E) SIM card self-inspection information analysis (SIM_Parse_Self_Check ()) is received
Function: voidSIM_Parse_Self_Check (char*pBuffer, shortbuffer_len, BD1_SIM__Card_Info_Struct*pSIMInfo)
Input parameter: * pBuffer: the data received from FPGA; Buffer_len: receive data length.
Output parameter: * pSIMInfo:SIM card information structure body.
Function: if Received signal strength is startup self-detection inverse signal, then enters function and upgrade the data in SIM card information structure.
F) receive SIM card decoding information and resolve (SIM_Parse_Decode_Info ())
Function: voidSIM_Parse_Decode_Info (char*pBuffer, shortbuffer_len, BD1_SIM_Card_Info_Struct*pSIMInfo)
Input parameter: * pBuffer: the data received from FPGA; Buffer_len: receive data length.
Output parameter: * pSIMInfo:SIM card information structure body.
Function: if Received signal strength is the inverse signal of decoding, then enters function and upgrade the data in SIM card information structure.
G) receive SIM card coded message and resolve (SIM_Parse_Encode_Info ())
Function: voidSIM_Parse_Encode_Info (char*pBuffer, shortbuffer_len, BD1_SIM_Card_Info_Struct*pSIMInfo)
Input parameter: * pBuffer: the data received from FPGA; Buffer_len: receive data length.
Output parameter: * pSIMInfo:SIM card information structure body.
Function: if Received signal strength is the inverse signal of coding, then enters function and upgrade the data in SIM card information structure.
H) SIM card permanent locking information analysis (SIM_Parse_Forever_Close ()) is received
Function: voidSIM_Parse_Forever_Close (char*pBuffer, shortbuffer_len, BD1_
SIM_Card_Info_Struct*pSIMInfo)
Input parameter: * pBuffer: the data received from FPGA; Buffer_len: receive data length.
Output parameter: * pSIMInfo:SIM card information structure body.
Function: if Received signal strength is the inverse signal of permanent locking, then enters function and upgrade the data in SIM card information structure.
I) SIM card reissue commands information analysis (SIM_Parse_Wrong ()) is received
Function: voidSIM_Parse_Wrong (char*pBuffer, shortbuffer_len, BD1_SIM_Card_Info_Struct*pSIMInfo)
Input parameter: * pBuffer: the data received from FPGA; Buffer_len: receive data length.
Output parameter: * pSIMInfo:SIM card information structure body.
Function: if Received signal strength is the inverse signal of reissue commands, then enters function and upgrade the data in SIM card information structure.
J) SIM card self damaging order information analysis (SIM_Parse_Destroy ()) is received
Function: voidSIM_Parse_Destroy (char*pBuffer, shortbuffer_len, BD1_SIM_Card_Info_Struct*pSIMInfo)
Input parameter: * pBuffer: the data received from FPGA; Buffer_len: receive data length.
Output parameter: * pSIMInfo:SIM card information structure body.
Function: if Received signal strength is the inverse signal of self damaging order, then enters function and upgrade the data in SIM card information structure.
Next, in the step s 120, as the match is successful, then the user profile of receive channel is read and the monitoring started user terminal corresponding to this user profile based on the SIM card information that the match is successful.
Concrete, SIM card information comprises: the user terminal ID that SIM card identifies, SIM card is corresponding, the command terminal at SIM card place and the user terminal relation of its subordinate and corresponding encryption and decryption key.Wherein, SIM card mark is used for distinguishing different SIM card; User terminal ID corresponding to SIM card is for indicating the data of this SIM card for the treatment of which user terminal; The user terminal relation of command terminal and its subordinate is for indicating the command terminal at this SIM card place is for controlling which user terminal of its subordinate; The encryption and decryption key that command terminal is corresponding with the user terminal of its subordinate is corresponding with each user terminal respectively, and the encryption and decryption key of different user terminals is different, so just can realize a multiple user terminal of command terminal process.
During specific implementation, user terminal ID corresponding to this SIM card can determine that this SIM card carries out the user terminal processed, and when only having the user terminal as this ID that receive channel receives, this SIM card just carries out work.SIM card after the match is successful, can obtain its unique SIM card mark, can determine thus uniquely to should the SIM card of user terminal of receive channel.The user terminal relation of command terminal and its subordinate designates command terminal can the scope of subordinate's user terminal of monitoring management.The encryption and decryption key that command terminal is corresponding from the user terminal of its subordinate represents to have different encryption and decryption keys between different user terminals and command terminal, thus realizes the secure communication of command terminal and each subordinate's user terminal.When to obtain channel information corresponding to multiple user terminal simultaneously, signal-processing board can carry out parallel processing to the channel information of multiple user terminal, can avoid the restriction of individual commander's card service frequency, cause commander's continuity poor.
Corresponding diagram 3, after command terminal initialization, self-inspection is carried out to SIM card information, determine whether the commander's machine in concentrating type command jurisdiction after ready again, belong to commander's machine of this cluster management in this way, then read user profile by this receive channel, thereafter, start channels track to catch, carry out this communication for command, complete this command function.
The present invention adopts concentrating type command terminal to design, and needs multiple SIM card integrated management, effectively room for promotion utilance, hardware cost is not increased, and unit interval volume of transmitted data is multiplied.Adopt independent circuit board to install SIM card, in process easy to use, commander clamps and gets simultaneously.In use, according to transmission demand, select suitable communication frequency to complete the transmission of file or image data.Adopt large resource FPGA and DSP to resolve, effectively improve command type user cluster management, improve the service application frequency such as location, communication.
The present invention, by the data of the multiple communication channel of multiple SIM card parallel processing, breaks through the command terminal of employing one SIM card to the quantitative limitation of subordinate's general subscriber terminal number, and can supervise the reporting information receiving all subordinate's general subscriber terminal in real time.Meanwhile, after larger data also can be split by the present invention, by different SIM card to subordinate's general subscriber terminal distribution transmission, thus realize Large Copacity concentrating type command and management.By the software control to signal-processing board and SIM card plate, can realize fragmented user terminal data receive time delay controlled, and to fragment data serial number, to be easy to data recombination, thus realize the method for Large Copacity concentrating type command terminal command and management.
Although execution mode disclosed in this invention is as above, the execution mode that described content just adopts for the ease of understanding the present invention, and be not used to limit the present invention.Technical staff in any the technical field of the invention; under the prerequisite not departing from spirit and scope disclosed in this invention; any amendment and change can be done what implement in form and in details; but scope of patent protection of the present invention, the scope that still must define with appending claims is as the criterion.
Claims (10)
1., based on a method for the command terminal command and management of RDSS, comprising:
The receive channel of catching is mated with multiple SIM card;
As the match is successful, then read the user profile of described receive channel and the monitoring started user terminal corresponding to this user profile based on the SIM card information that the match is successful.
2. method according to claim 1, is characterized in that, the receive channel of catching and multiple SIM card is carried out mating comprising further:
The channel information of the receive channel of catching is decomposed into the first branch road information and the second branch road information;
Based on the ID of user terminal corresponding to described first this receive channel of branch road acquisition of information;
Mate with the specific SIM card in multiple SIM card based on the ID of described user terminal.
3. method according to claim 2, is characterized in that, the user profile reading described receive channel comprises further:
Read the SIM card information in described specific SIM card;
The relation of described user terminal and described command terminal is judged based on described SIM card information;
As described in user terminal belong to as described in the subordinate terminal of command terminal, then obtain the user profile of described user terminal based on described second branch road information and described SIM card information.
4. the method according to any one of claim 1-3, it is characterized in that, described SIM card information comprises: the user terminal ID that described SIM card identifies, described SIM card is corresponding, the command terminal at described SIM card place and the user terminal relation of its subordinate and corresponding encryption and decryption key.
5. method according to claim 1, is characterized in that, when to obtain channel information corresponding to multiple user terminal simultaneously, carries out parallel processing to the channel information of multiple user terminal.
6., based on a command terminal of RDSS, comprising:
SIM card plate, it comprises integrated multiple SIM card that can work independently;
Signal-processing board, it is connected with described SIM card plate,
Wherein, described signal-processing board coordinates with described SIM card plate and is used for the receive channel of catching to mate with multiple SIM card, as the match is successful, then described signal-processing board reads the user profile of described receive channel and the monitoring started user terminal corresponding to this user profile based on the SIM card information that the match is successful.
7. command terminal according to claim 6, is characterized in that, the receive channel of catching and multiple SIM card is carried out mating comprising further:
The channel information of the receive channel of catching is decomposed into the first branch road information and the second branch road information by described signal-processing board;
Described SIM card plate is based on the ID of user terminal corresponding to described first this receive channel of branch road acquisition of information;
Described SIM card plate mates with the specific SIM card in multiple SIM card based on the ID of described user terminal.
8. command terminal according to claim 7, is characterized in that, the user profile that described signal-processing board reads described receive channel comprises further:
Described signal-processing board reads the SIM card information in described specific SIM card;
Described signal-processing board judges the relation of described user terminal and described command terminal based on described SIM card information;
As described in user terminal belong to as described in the subordinate terminal of command terminal, described signal-processing board obtains the user profile of described user terminal based on described second branch road information and described SIM card information.
9. the command terminal according to any one of claim 6-8, is characterized in that, between described SIM card plate and described signal-processing board, be provided with parallel-expansion interface, in order to realize the parallel processing to each SIM card.
10. command terminal according to claim 9, is characterized in that, described command terminal is placed described SIM card plate place and is provided with slide rail, plugs in described command terminal to facilitate described SIM card plate.
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| CN105071974B (en) | 2019-01-11 |
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