CN109788529A - A kind of Big Dipper short message combination GSM network scheduling communication method and system - Google Patents
A kind of Big Dipper short message combination GSM network scheduling communication method and system Download PDFInfo
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Abstract
The invention discloses a kind of Big Dipper short message combination GSM network scheduling communication methods, comprising: terminal obtains GSM network signal, and judges whether GSM network signal strength is less than preset value；When being judged as YES, terminal sends task message to server by Beidou communication network；When being judged as NO, terminal sends task message to server by GSM communication network；The server carries out processing to task message and sends acknowledgement message to terminal；Terminal is handled according to the feedback of acknowledgement message.The invention also discloses a kind of Big Dipper short message combination GSM network dispatching communications subsystems, including terminal, UDP server and RDSS server.It using the present invention, can reduce because of the bad influence to communication efficiency of dipper system signal, while improve the success rate and efficiency transmitted to data.
Description
Technical field
The present invention relates to a kind of wireless communication technique more particularly to a kind of Big Dipper short message combination GSM network dispatching communications
Method and system.
Background technique
Beidou satellite navigation system is the Global Satellite Navigation System that China voluntarily develops, in addition to having positioning, navigating, award
Shi Gongneng is also equipped with two-way short message communication function, and user can once transmit the short message information of 40-60 Chinese character, remote
There is important application value in the navigation of ocean.
Global system for mobile communications (Global System for Mobile communications, abbreviation GSM) is
Second generation mobile communication technical specification standard.GSM is not both its signaling and voice channel compared with its pervious standard maximum
All be it is digital, using digital speech transmission technology as core, be commonly defined as directly transmitting such as Email, software
Information only has call and some such as Time of Day mobile communication technical specifications.But certain specifications of the SMS at it
In can be performed.Meanwhile standard of the GSM as a continual exploitation, constantly there is new function to be supplemented in and come, such as message is handed over
Transducing power is just added into the standard of Release'97 version, that is, gprs service standard.High-speed data, which exchanges, is also
It is just introduced in Release'99 editions standards, mainly EDGE and UMTS standard.
Radiodetermination-satellite service (Radio Determination Satellite Service, abridge RDSS) is
A kind of business for range measurement being completed by user's response by satellite system and position calculates, its main feature is that being answered by user
It answers, while completing positioning, completes the Subscriber Location Report to external system, can also be achieved positioning and integrated with what is communicated.
The system for realizing RDSS business is active satellite positioning system, such as the Beidou generation global position system in China.
User Datagram Protocol (User Datagram Protocol, abbreviation UDP), is open systems interconnection model
A kind of transport layer protocol in (Open System Interconnection, abbreviation OSI), it is as Transmission Control Protocol in a network
It is a kind of connectionless agreement for handling data packet.In osi model, at the 4th layer --- transport layer, in IP agreement
Upper one layer.The main function of udp protocol is the form that network traffic data is compressed into data packet.UDP does not provide data packet point
Group, assembling and data packet cannot be ranked up, that is to say, that be that can not learn it whether safety is complete after message is sent
Whole arrival.But UDP still can yet be regarded as a very useful and feasible network transmission layer protocol.
Beidou generation communication system uses satellite-signal when carrying out short message communication at present, for ambient signal ring
The requirement in border is very harsh, and device antenna must be upward and as far as possible towards the south, and antenna cannot be blocked, be as far as possible in sky
Spacious place, while ensuring that there is no signal interferences on periphery.In addition, the mobile communication equipment of dipper system is permitted in short message communication
Be when more have GSM signal cover region, but mobile communication equipment of dipper system itself only supports a Beidou generation communication
Function is not available GSM communication network.In addition, even if carrying out data transmission using GSM communication network, but due to gsm communication
Web vector graphic udp protocol, user are difficult to confirm whether data completely reach server, compromise the success rate and effect of data transmission
Rate.
So how to improve existing dipper system short message communication mechanism, can reduce because dipper system signal is bad
Influence to communication efficiency, while the success rate and efficiency transmitted to data are improved, it is current problem to be solved.
Summary of the invention
Technical problem to be solved by the present invention lies in provide a kind of Big Dipper short message combination GSM network dispatching communication side
Method and system can be reduced because of the bad influence to communication efficiency of dipper system signal, while improve the success transmitted to data
Rate and efficiency.
In order to solve the above technical problem, the present invention provides a kind of Big Dipper short message combination GSM network scheduling communication method,
It is characterised by comprising: terminal obtains GSM network signal, and judge whether GSM network signal strength is less than preset value；Judgement
When to be, terminal sends task message to server by Beidou communication network；When being judged as NO, terminal passes through gsm communication net
Network sends task message to server；Server carries out processing to task message and sends acknowledgement message to terminal；Terminal according to
The feedback of the acknowledgement message is handled.
As an improvement of the above scheme, when terminal judges that GSM network signal strength is less than preset value, terminal passes through north
Bucket communication network sends task message to RDSS server.
As an improvement of the above scheme, when terminal judges that GSM network signal strength is greater than or equal to preset value, terminal
Task message is sent to UDP server by GSM communication network.
As an improvement of the above scheme, the specific steps that server handles task message include: that server receives
Task message, and task message is parsed, is stored, is encapsulated and forward process.
As an improvement of the above scheme, the specific steps packet that terminal is handled according to the feedback of the acknowledgement message
It includes: when the quantity that terminal is not received by acknowledgement message is less than or equal to preset times, retransmission message；When terminal does not connect
The number for receiving acknowledgement message is greater than preset times, and display sends failure.
The invention also discloses a kind of Big Dipper short message combination GSM network dispatching communications subsystems, including terminal, UDP to service
Device and RDSS server: terminal includes that GSM signal strength judgment module, GSM sending module, Beidou sending module and receipt are subsequent
Processing module, GSM signal strength judgment module judge whether GSM network signal strength is less than for obtaining GSM network signal
Preset value, GSM sending module is for sending task message to server by GSM communication network, Beidou is sent when being judged as NO
Module is for sending task message to server by Beidou communication network, receipt subsequent processing module is used for when being judged as YES
It is handled according to the feedback of acknowledgement message；UDP server includes that GSM message processing module and GSM acknowledgement message are sent
Module, for handling task message, GSM acknowledgement message sending module is used to send to terminal GSM message processing module
Acknowledgement message；RDSS server includes Beidou message processing module and Beidou acknowledgement message sending module, Beidou Message Processing mould
For handling task message, Beidou acknowledgement message sending module is used to send acknowledgement message to terminal block.
As an improvement of the above scheme, message transmission module includes: Beidou sending module, for sentencing when GSM signal strength
When disconnected module judges that GSM network signal strength is less than preset value, task is sent to RDSS server by Beidou communication network
Message；GSM sending module is preset for judging that GSM network signal strength is greater than or equal to when GSM signal strength judgment module
When value, task message is sent to UDP server by GSM communication network.
As an improvement of the above scheme, GSM message processing module includes: GSM resolution unit, for carrying out to task message
Parsing generates task message data；GSM storage unit, for being stored to task message data；GSM encapsulation unit, is used for
Task message data are packaged into task message body；GSM retransmission unit, for forwarding task message body.
As an improvement of the above scheme, Beidou message processing module includes: Beidou resolution unit, for task message into
Row parsing generates task message data；Beidou storage unit, for being stored to task message data；Beidou encapsulation unit,
For task message data to be packaged into task message body；Beidou retransmission unit, for forwarding task message body.
As an improvement of the above scheme, receipt subsequent processing module includes: message retransmission unit, for not connecing when terminal
The quantity for receiving acknowledgement message is less than or equal to preset times, retransmits task message；Failure prompt unit is sent, for working as
The number that terminal is not received by acknowledgement message is greater than preset times, and display sends failure.
The invention has the following beneficial effects:
Big Dipper short message combination GSM network scheduling communication method of the present invention and system can be selected according to current demand signal environment
Optimal transmission mechanism carries out data transmission and acknowledgement message mechanism, greatly promotes data transmission success and high efficiency.
Specifically, terminal first judges GSM signal strength before sending task message, when GSM network signal strength is greater than
Or when being equal to preset value, terminal sends task message to UDP server by GSM communication network.When GSM network signal strength is small
When preset value, terminal sends task message by Beidou communication network.Ensure the stronger GSM of the in due course selection signal of terminal in this way
Communication network is communicated, and dependence to dipper system network is reduced, and is effectively prevent dipper system signal is weaker or peripheral ring
The case where border is unfavorable in the case where receiving signal, and terminal can not succeed in sending up message generation.It is used for GSM communication network
When udp protocol carries out data transmission, user can not confirm the problem of task message completely reaches, in the present invention, when UDP is serviced
After device handles the task message received, it can inform that user task message is complete to terminal transmission acknowledgement message
Server is reached, thus improve data transfer success rate and high efficiency.Meanwhile RDSS server is handling received task
Also acknowledgement message can be sent after message to mobile transmitting terminal, passed to also improve data when using dipper system communication network
Defeated success rate and high efficiency.
Big Dipper short message combination GSM network dispatching communications subsystem disclosed by the invention is able to achieve above-mentioned control method, realizes
It can reduce because of the bad influence to communication efficiency of dipper system signal, while improve the success rate and efficiency transmitted to data.
Detailed description of the invention
Fig. 1 Big Dipper short message combination GSM network scheduling communication method flow chart of first embodiment of the present invention；
Fig. 2 Big Dipper short message combination GSM network scheduling communication method flow chart of the second embodiment of the present invention；
Fig. 3 Big Dipper short message combination GSM network scheduling communication method 3rd embodiment flow chart of the present invention；
Fig. 4 Big Dipper short message combination GSM network scheduling communication method fourth embodiment flow chart of the present invention；
Fig. 5 the 5th embodiment flow chart of Big Dipper short message combination GSM network scheduling communication method of the present invention；
Fig. 6 Big Dipper short message combination GSM network dispatching communications subsystem first embodiment structure chart of the present invention；
Fig. 7 Big Dipper short message combination GSM network dispatching communications subsystem second embodiment structure chart of the present invention；
Fig. 8 Big Dipper short message combination GSM network dispatching communications subsystem 3rd embodiment structure chart of the present invention；
Fig. 9 Big Dipper short message combination GSM network dispatching communications subsystem fourth embodiment structure chart of the present invention；
Figure 10 the 5th example structure figure of Big Dipper short message combination GSM network dispatching communications subsystem of the present invention.
Specific embodiment
To make the object, technical solutions and advantages of the present invention clearer, the present invention is made into one below in conjunction with attached drawing
Step ground detailed description.Only this is stated, the present invention occurs in the text or will occur up, down, left, right, before and after, it is inside and outside etc. just
Position word is not to specific restriction of the invention only on the basis of attached drawing of the invention.
Fig. 1 shows Big Dipper short message combination GSM network scheduling communication method flow chart of first embodiment of the present invention, packet
It includes:
S100, terminal obtain GSM network signal, and judge whether GSM network signal strength is less than preset value；
S200, when being judged as YES, terminal sends task message to server by Beidou communication network；
S300, when being judged as NO, terminal sends task message to server by GSM communication network；
S400, server carry out processing to task message and send acknowledgement message to terminal；
S500, terminal are handled according to the feedback of acknowledgement message.
It should be noted that terminal determines from the beginning according to GSM network signal strength using which kind of communication network
It is communicated, the terminal under two kinds of communication networks sends message, signal transfer protocol, signal propagation path, the class of server
Not and server is all entirely different to processing of message etc..Different networks means that signal conditioning is also different.Beidou is logical
The most important transmission being to ensure that between terminal and satellite of communication network is unimpeded, therefore, either to the antenna bearingt of terminal, still
Requirement to neighbouring barrier or interference signal is all very stringent, is unfavorable for the stabilization, suitable of Beidou signal environment to a certain extent
Freely.GSM network is very mature communication network, either base station group construction or data transmission technology, has all accomplished phase
When perfect degree, all areas covering the whole world already.User is in most cases all in good GSM signal environment.
Therefore, help to reduce the dependence to dipper system network using GSM network as the supplement of Beidou network, effectively prevent in Beidou
The case where system signal is weaker or surrounding enviroment are unfavorable in the case where receiving signal, and terminal can not succeed in sending up message generation.
Above-mentioned steps are further qualified below.
Fig. 2 shows the flow chart of the second embodiment of Big Dipper short message combination GSM network scheduling communication method of the present invention, with
First embodiment has been made defined below compared to second embodiment:
S200, when terminal judge GSM network signal strength be less than preset value when, terminal by Beidou communication network to
RDSS server sends task message.
GSM network signal strength is generally measured with CSQ value.The level of CSQ is at a distance from base station and terminal, terminal and base
Signal strength and environmental attenuation when station is separated by 1 meter is factor-related, and physical relationship is as follows:
CSQ=(lnd × 10 × n+A+113) ÷ 2
Wherein, d is base station at a distance from terminal, and A is signal strength when terminal and base station are separated by 1 meter, and n is environmental attenuation
The factor.In general, CSQ range is 0 to 32, accordingly, the preset critical of CSQ can be set as 16, when CSQ value is less than 16,
Mean the horizontal half or more less than highest level of signal strength, it is believed that GSM signal environment is not good enough at this time, uncomfortable
Conjunction is communicated using GSM network, the short message communication function of Beidou communication system should be used to be communicated.At this point, terminal is logical
It crosses Beidou communication network and sends task message to RDSS server.It should be noted that RDSS server be specifically used to receive,
Handle radiodetermination-satellite service (Radio Determination Satellite Service, abridge RDSS) data
Server, the server can receive, handle the task message sent by Beidou communication network.
Fig. 3 shows the 3rd embodiment flow chart of Big Dipper short message combination GSM network scheduling communication method of the present invention, with
Second embodiment has been made defined below compared to 3rd embodiment:
S300, when terminal judge GSM network signal strength be greater than or equal to preset value when, terminal pass through gsm communication net
Network sends task message to UDP server.
Preset critical value is still set to 16, that is to say, that when CSQ value is greater than or equal to 16, it is meant that signal strength
The horizontal half or more in highest level, it is believed that GSM signal environment is preferable at this time, is suitble to carry out using GSM network
Communication, terminal send task message to UDP server by GSM communication network.It should be noted that UDP server is special
For receiving, handling the clothes of the data by User Datagram Protocol (User Datagram Protocol, abbreviation UDP) transmission
Business device, wherein User Datagram Protocol is a kind of agreement for being used for transmission wireless data report, can be used for transmitting GSM signal.
Fig. 4 shows the fourth embodiment flow chart of Big Dipper short message combination GSM network scheduling communication method of the present invention, with
3rd embodiment has been made defined below compared to fourth embodiment:
S400, server receive task message, and are parsed, stored to task message, encapsulated and forward process.
It should be noted that UDP server in GSM communication network and the RDSS server in Beidou communication network are to appointing
The step of business message is handled is identical.
UDP server carries out parsing to task message and generates task message data after receiving task message, then right
Task message data are stored, to be inquired, to be backed up in the future.UDP server can then forward the task message data,
Before forwarding, task message data are first packaged into task message body, then forward task message body to special object again.
RDSS server carries out parsing to task message and generates task message data, then after receiving task message
Task message data are stored, to be inquired, to be backed up in the future.RDSS server can then forward the task message number
According to, before forwarding, task message data are first packaged into task message body, then again to special object forward task message
Body.
Fig. 5 shows the 5th embodiment flow chart of Big Dipper short message combination GSM network scheduling communication method of the present invention, with
Fourth embodiment has been made defined below compared to the 5th embodiment:
S500, when terminal be not received by acknowledgement message quantity be less than or equal to preset times, retransmit message；
It should be noted that terminal, which is not received by acknowledgement message, is likely to be its task message transmission mistake sent originally
It loses, it is also possible to which acknowledgement message sends failure.In general, the signal(l)ing condition near server is all relatively good, sends once in a while
Unsuccessfully may be caused by some accidental environmental factors, but the probability for repeatedly sending receipt message failure is very low.Therefore, terminal
Acknowledgement message is being not received by less than or equal to preset times, for example at 1 time, task message can be sent again, then etc.
Device to be serviced sends acknowledgement message again, so that whether the task message that confirmation was sent originally completely reaches server.
S600, when terminal be not received by acknowledgement message number be greater than preset times, display send failure.
Terminal is repeatedly sent after task message still without acknowledgement message is received, and illustrates that task message can not reach server,
Or acknowledgement message can not incoming terminal, either which kind of situation, should all assert can not send task under current signal environment
Message, terminal should show the information alert user for sending failure at this time.
From the foregoing, it will be observed that Big Dipper short message combination GSM network scheduling communication method of the present invention can be selected according to current demand signal environment
It selects optimal transmission mechanism to carry out data transmission and acknowledgement message mechanism, greatly promotes data transmission success and high efficiency.
Fig. 6 shows the structural schematic diagram of Big Dipper short message combination GSM network dispatching communications subsystem first embodiment, including
Terminal 100, UDP server 200 and RDSS server 300；
Terminal 100 includes GSM signal strength judgment module 110, GSM sending module 120, Beidou sending module 130 and returns
Subsequent processing module 140 is held, GSM signal strength judgment module 110 judges GSM network signal for obtaining GSM network signal
Whether intensity is less than preset value, and GSM sending module 120 by GSM communication network to server for being sent and being appointed when being judged as NO
Business message, Beidou sending module 130 is for sending task message to server by Beidou communication network, returning when being judged as YES
Subsequent processing module 140 is held for being handled according to the feedback of acknowledgement message；
Terminal 100 determines to be communicated using which kind of communication network from the beginning according to GSM network signal strength,
Terminal 100 under two kinds of communication networks send task message, signal transfer protocol, signal propagation path, the classification of server and
Server is different to the processing of message etc..Different networks means that signal conditioning is also different.Beidou communication network
Requirement to signal environment is all relatively stringenter, is unfavorable for the stabilization, smooth of Beidou signal environment to a certain extent.GSM network is not
Pipe is base station group construction or data transmission technology, has all accomplished quite perfect degree, all areas covering the whole world already
Domain.Therefore, help to reduce the dependence to dipper system network using GSM network as the supplement of Beidou network, effectively prevent
Dipper system signal is weaker or surrounding enviroment are unfavorable in the case where receiving signal, and terminal 100 can not be successfully transmitted task message
The case where occur.
UDP server 200 includes GSM message processing module 210 and GSM acknowledgement message sending module 220, at GSM message
For handling task message, GSM acknowledgement message sending module 220 is used to send acknowledgement message to terminal reason module 210；
UDP server 200 is to be specifically used to receive, handle through User Datagram Protocol (User Datagram
Protocol, abbreviation UDP) transmission data server, wherein User Datagram Protocol is that one kind is used for transmission wireless data
The agreement of report can be used for transmitting GSM signal.
RDSS server 300 includes Beidou message processing module 310 and Beidou acknowledgement message sending module 320, and Beidou disappears
For handling task message, Beidou acknowledgement message sending module 320 is used to send receipt to terminal breath processing module 310
Message.
RDSS server 300 is to be specifically used to receive, handle radiodetermination-satellite service (Radio
Determination Satellite Service, abridge RDSS) servers of data, which can receive, handle and leads to
Cross the task message of Beidou communication network transmission.
Fig. 7 shows the structural schematic diagram of Big Dipper short message combination GSM network dispatching communications subsystem second embodiment, with
One embodiment has been done defined below compared to second embodiment:
GSM sending module 120, for judging that GSM network signal strength is greater than or waits when GSM signal strength judgment module
When preset value, task message is sent to UDP server by GSM communication network；
GSM network signal strength is generally measured with CSQ value.The level of CSQ is at a distance from base station and terminal, terminal and base
Signal strength and environmental attenuation when station is separated by 1 meter is factor-related, and physical relationship is as follows:
CSQ=(lnd × 10 × n+A+113) ÷ 2
Wherein, d is base station at a distance from terminal, and A is signal strength when terminal and base station are separated by 1 meter, and n is environmental attenuation
The factor.In general, CSQ range is 0 to 32, accordingly, preset critical value can be set to 16, that is to say, that when CSQ value is big
When 16, it is meant that the horizontal half or more in highest level of signal strength, it is believed that GSM hoop at this time
Border is preferable, is suitble to be communicated using GSM network, and GSM sending module 120, which is sent by GSM communication network to UDP server, appoints
Business message.
Beidou sending module 130, for judging that GSM network signal strength is less than in advance when GSM signal strength judgment module
If when value, sending task message to RDSS server by Beidou communication network.
Will the preset critical of CSQ be set as 16, when CSQ value is less than 16, it is meant that the level of signal strength is less than highest
Horizontal half or more, it is believed that GSM signal environment is not good enough at this time, is not suitable for being communicated using GSM network, should use
The short message communication function of Beidou communication system is communicated.At this point, Beidou sending module 130 by Beidou communication network to
RDSS server sends task message.
Fig. 8 shows the structural schematic diagram of Big Dipper short message combination GSM network dispatching communications subsystem 3rd embodiment, with
Two embodiments have been done defined below compared to 3rd embodiment:
GSM message processing module 210 includes:
GSM resolution unit 211 generates task message data for carrying out parsing to task message；
GSM storage unit 212, for being stored to task message data；
GSM encapsulation unit 213, for task message data to be packaged into task message body；
GSM retransmission unit 214, for forwarding task message body.
UDP server 200 is after receiving the task message that terminal is sent by GSM communication network, GSM resolution unit
211 pairs of task messages are parsed and generate task message data, and then GSM storage unit 212 carries out task message data
Storage, to be inquired, to be backed up in the future.UDP server can then forward the task message data, before forwarding, GSM envelope
Task message data are first packaged into task message body by dress unit 213, and then GSM retransmission unit 214 is forwarded to special object again
Task message body.
Fig. 9 shows the structural schematic diagram of Big Dipper short message combination GSM network dispatching communications subsystem fourth embodiment, with
Three embodiments have been done defined below compared to fourth embodiment:
Beidou message processing module 310 includes:
Beidou resolution unit 311 generates task message data for carrying out parsing to task message；
Beidou storage unit 312, for being stored to task message data；
Beidou encapsulation unit 313, for task message data to be packaged into task message body；
Beidou retransmission unit 314, for forwarding task message body.
RDSS server 300 is after receiving the task message that terminal 100 is sent by Beidou communication system, Beidou parsing
Unit 311 to task message carry out parsing generate task message data, then Beidou storage unit 312 to task message data into
Row storage, to be inquired, to be backed up in the future.RDSS server 300 can then forward the task message data, in forwarding
Before, task message data are first packaged into task message body by Beidou encapsulation unit 313, then the Xiang Te again of Beidou retransmission unit 314
Determine object forwarding task message body.
Figure 10 shows the structural schematic diagram of the 5th embodiment of Big Dipper short message combination GSM network dispatching communications subsystem, with
Fourth embodiment has been done defined below compared to the 5th embodiment:
Receipt subsequent processing module 140 includes:
Message retransmission unit 141, the quantity for being not received by acknowledgement message when terminal are less than or equal to preset times,
Retransmit task message；
It should be noted that terminal 100, which is not received by acknowledgement message, is likely to be its task message hair sent originally
Send failure, it is also possible to which acknowledgement message sends failure.In general, the signal(l)ing condition near server is all relatively good, once in a while
Transmission unsuccessfully may be caused by some accidental environmental factors, and repeatedly the probability of transmission receipt message failure is very low.Therefore, eventually
End 100 is not received by acknowledgement message less than or equal to preset times, for example at 1 time, message retransmission unit 121 can be sent out again
Task message is sent, then waiting for server sends acknowledgement message again, so that whether the task message that confirmation was sent originally is complete
Reach server.
Failure prompt unit 142 is sent, the number for being not received by acknowledgement message when terminal is greater than preset times, shows
Show transmission failure.
Still without acknowledgement message is received after more than 100 transmission message of terminal, illustrate that task message can not reach server, or
Acknowledgement message can not incoming terminal, either which kind of situation, should all assert, which can not send task under current signal environment, disappears
Breath, the information alert user for sending failure should be shown by sending failure prompt unit 122 at this time.
The above is a preferred embodiment of the present invention, it is noted that for those skilled in the art
For, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications are also considered as
Protection scope of the present invention.
Claims (10)
1. a kind of Big Dipper short message combination GSM network scheduling communication method characterized by comprising
Terminal obtains GSM network signal, and judges whether the GSM network signal strength is less than preset value,
When being judged as YES, the terminal sends task message to server by Beidou communication network,
When being judged as NO, the terminal sends task message to server by GSM communication network；
The server carries out processing to the task message and sends acknowledgement message to the terminal；
The terminal is handled according to the feedback of the acknowledgement message.
2. Big Dipper short message combination GSM network scheduling communication method as described in claim 1, which is characterized in that when the terminal
When judging that the GSM network signal strength is less than preset value, the terminal is sent out by Beidou communication network to RDSS server
Send task message.
3. Big Dipper short message combination GSM network scheduling communication method as described in claim 1, which is characterized in that when the terminal
When judging that the GSM network signal strength is greater than or equal to preset value, the terminal is serviced by GSM communication network to UDP
Device sends task message.
4. Big Dipper short message combination GSM network scheduling communication method as described in claim 1, which is characterized in that the server
The specific steps handled the task message include:
The server receives the task message, and is parsed, stored to the task message, encapsulated and forward process.
5. Big Dipper short message combination GSM network scheduling communication method as described in claim 1, which is characterized in that the terminal root
Include: according to the specific steps that the feedback of the acknowledgement message is handled
When the number that the terminal is not received by the acknowledgement message is less than or equal to preset times, retransmission message；
When the number that the terminal is not received by the acknowledgement message is greater than preset times, display sends failure.
6. a kind of Big Dipper short message combination GSM network dispatching communications subsystem, which is characterized in that including terminal, UDP server and
RDSS server；
The terminal includes GSM signal strength judgment module, GSM sending module, Beidou sending module and receipt subsequent processing mould
Block, the GSM signal strength judgment module judge whether the GSM network signal strength is small for obtaining GSM network signal
In preset value, the GSM sending module is for when being judged as NO, the terminal to be appointed by GSM communication network to server transmission
Business message, the Beidou sending module is for sending task message, institute to server by Beidou communication network when being judged as YES
Receipt subsequent processing module is stated for being handled according to the feedback of the acknowledgement message；
The UDP server includes GSM message processing module and GSM acknowledgement message sending module, the GSM message processing module
For handling the task message, the GSM acknowledgement message sending module is used to send acknowledgement message to the terminal；
The RDSS server includes Beidou message processing module and Beidou acknowledgement message sending module, the Beidou Message Processing
For handling the task message, the Beidou acknowledgement message sending module is used to send receipt to the terminal module
Message.
7. Big Dipper short message combination GSM network dispatching communications subsystem as claimed in claim 6, which is characterized in that the message hair
The module is sent to include:
Beidou sending module, for judging that GSM network signal strength is less than preset value when the GSM signal strength judgment module
When, task message is sent to the RDSS server by Beidou communication network；
GSM sending module, for judging that GSM network signal strength is greater than or equal to when the GSM signal strength judgment module
When preset value, task message is sent to the UDP server by GSM communication network.
8. Big Dipper short message combination GSM network dispatching communications subsystem as claimed in claim 6, which is characterized in that the GSM message
Processing module includes:
GSM resolution unit generates task message data for carrying out parsing to the task message；
GSM storage unit, for being stored to the task message data；
GSM encapsulation unit, for the task message data to be packaged into task message body；
GSM retransmission unit, for forwarding the task message body.
9. Big Dipper short message combination GSM network dispatching communications subsystem as claimed in claim 6, which is characterized in that the Beidou disappears
Ceasing processing module includes:
Beidou resolution unit generates task message data for carrying out parsing to the task message；
Beidou storage unit, for being stored to the task message data；
Beidou encapsulation unit, for the task message data to be packaged into task message body；
Beidou retransmission unit, for forwarding the task message body.
10. Big Dipper short message combination GSM network dispatching communications subsystem as claimed in claim 6, which is characterized in that after the receipt
Continuous processing module includes:
Message retransmission unit, the quantity for being not received by acknowledgement message when the terminal are less than or equal to preset times, weight
It is new to send task message；
Failure prompt unit is sent, the number for being not received by acknowledgement message when the terminal is greater than preset times, display
Send failure.
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