CN102651746A - Point-to-point information transmission method, system and device - Google Patents
Point-to-point information transmission method, system and device Download PDFInfo
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- CN102651746A CN102651746A CN2012101575505A CN201210157550A CN102651746A CN 102651746 A CN102651746 A CN 102651746A CN 2012101575505 A CN2012101575505 A CN 2012101575505A CN 201210157550 A CN201210157550 A CN 201210157550A CN 102651746 A CN102651746 A CN 102651746A
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Abstract
The invention provides point-to-point information transmission method, system and device. The method comprises the following steps: a first terminal judges whether a network environment is changed or not; if yes, the first terminal positively establishes a first link with a server; the server obtains and stores the public IP (Internet Protocol) and the port information of the first terminal according to the first link; the server receives a query request of a second terminal and sends the public IP and the port information of the first terminal to the second terminal according to the query request; and the second terminal establishes a second link with the first terminal and carries out data interaction with the first terminal according to the public IP and the port information of the first terminal. The first terminal only needs to positively initiate the link to the server when the network environment is changed, and the server does not save the information of the first terminal, so that the privacy of information is kept, and the cost of the system is reduced. In addition, the second terminal can inquire the public IP and the port information of the first terminal in the server to directly establish the link with the first terminal, and further, the information of the first terminal is obtained in real time.
Description
Technical field
The present invention relates to communication technical field, particularly a kind of point-to-point information transferring method, system and device.
Background technology
Along with the development of network and sensor technology, the demand that people obtain for terminal information remote more and more widely, its basic principle is through being installed in the sensor acquisition related data on the terminal, again through network delivery to interested observer.For example, the head of a family hopes to obtain its positional information through the terminal that children use.
Fig. 1 is the sketch map of the point-to-point information transferring method of prior art.As shown in Figure 1, system comprises three parts: the terminal A of information source, public server B and observer C.Terminal A is generally the equipment of supporting data mobile networks (like EDGE, GPRS, 3G etc.); Server B is the server that has the direct visit in Tong Guo the Internet of public network IP, and observer C is any application program (like desktop computer, smart mobile phone, panel computer application program) that inserts the Internet.Information transmission process is: terminal A is through the direct Connection Service device of network B, and with all data upload to server B, observer C downloads related data from server B and observes or handle.
The problem that prior art exists is:
1, terminal information need be in the server B storage administration, and privacy is poor;
2, server B needs very strong calculating and storage capacity, and the development and maintenance cost is high;
3, observer C can't initiatively be initiated to the communication link of terminal A, the real time information that therefore can't obtain terminal A.
Summary of the invention
The object of the invention is intended to solve at least one of above-mentioned technological deficiency.
For achieving the above object, the embodiment of first aspect present invention proposes a kind of information transferring method, may further comprise the steps: whether the first terminal judges network environment changes; When if the said first terminal judges network environment changes, then said first terminal is initiatively set up first with said server and is linked; Said server obtains and preserves the public network IP and the port information at said first terminal according to said first link; Query requests is sent to said server in second terminal; Said server is sent to said second terminal according to said query requests with the public network IP and the port information at said first terminal; Said second terminal is set up second according to the public network IP at said first terminal and port information with said first terminal and is linked, and carries out data interaction through said second link with said first terminal.
Point-to-point information transferring method according to the embodiment of the invention; First terminal only needs when network environment changes, initiatively to initiate link to server, and server is not preserved first terminal information, has kept the privacy of first end message; And do not send any information owing to only set up link; Therefore the deployment of server is simple, and system resource requirements is little, and cost is low.In addition; Can the public network IP and the port information at first terminal be stored in the server through link; Can directly initiate link as observer's second terminal to first terminal through public network IP and port information thus to server lookup first terminal; Thereby can obtain first terminal information in real time, be very easy to the information interaction between the terminal.
In one embodiment of the invention, said point-to-point information transferring method also comprises: the identify label at the terminal that record is trusted in said first terminal; Said first terminal receives and sends communication information through said first chain, and wherein, said communication information comprises the identify label at said first terminal and the identify label at said terminal of being trusted; The identify label at said first terminal of said server for saving and the identify label at said terminal of being trusted; Said server judges according to the identify label at said query requests, said first terminal and the identify label at said terminal of being trusted whether said second terminal is legal; If it is legal to judge, said server sends the public network IP and the port information at said first terminal to said second terminal.Thus, avoid first terminal information, guarantee the fail safe of first end message by malice observer visit.
In one embodiment of the invention, before said first terminal to server sends a notification message, said notification message is encrypted.Thus, the guarantee information safety of transmission is avoided malicious attack and visit.
In one embodiment of the invention, before said server sends the public network IP and port information at said first terminal to said second terminal, said public network IP and port information are encrypted.Thus, but also guarantee information safety of transmission is avoided malicious attack and visit.
In one embodiment of the invention, said first terminal is positioned at different private networks with second terminal, and said server has public network IP.Thus, satisfy terminal networking demand under the mobile network environment.
The present invention also proposes a kind of point-to-point information transmission system on the other hand; Comprise first terminal, server and second terminal; Wherein: said first terminal is used to judge whether network environment changes, and when network environment changes, initiatively sets up first with said server and link; Said server; Be used for obtaining and preserve the public network IP and the port information at said first terminal according to said first link; And receive the query requests that send at said second terminal, and send the public network IP and the port information at said first terminal to said second terminal according to said query requests; And said second terminal; Be used for sending query requests to said server; And receive the public network IP and the port information at first terminal that said server returns according to said query requests; And set up second according to the public network IP at said first terminal and port information with said first terminal and link, and carry out data interaction with said first terminal through said second link.
The point-to-point information transmission system according to the embodiment of the invention; First terminal only needs when network environment changes, initiatively to initiate link to server, and server is not preserved first terminal information, has kept the privacy of first end message; And do not send any information owing to only set up link; Therefore the deployment of server is simple, and system resource requirements is little, and cost is low.In addition; Can the public network IP and the port information at first terminal be stored in the server through link; Can directly initiate link as observer's second terminal to first terminal through public network IP and port information thus to server lookup first terminal; Thereby can obtain first terminal information in real time, be very easy to the information interaction between the terminal.
In one embodiment of the invention, said first terminal is positioned at different private networks with said second terminal, and said server has public network IP.Thus, satisfy terminal networking demand under the mobile network environment.
In one embodiment of the invention; Said first terminal also is used to write down the identify label at the terminal of being trusted; And pass through said first link and send communication information to said server; Wherein, said communication information comprises the identify label at said first terminal and the identify label at said terminal of being trusted.Thus, can verify in follow-up operation whether current observer's request is legal, avoid first terminal information, guarantee the fail safe of first end message by malice observer visit.
In one embodiment of the invention; Said server also is used to preserve the identify label at said first terminal and the identify label at said terminal of being trusted; And judge according to the identify label at said query requests, said first terminal and the identify label at said terminal of being trusted whether said second terminal is legal; And when judging that said second terminal is legal, send the public network IP and the port information at said first terminal to said second terminal.Thus, guarantee that first terminal information can not guaranteed the fail safe of first end message by malice observer visit.
In one embodiment of the invention, said first terminal also is used for before sending said communication information, said communication information being encrypted.Thus, the guarantee information safety of transmission is avoided malicious attack and visit.
In one embodiment of the invention, said server also is used for before public network IP of sending said first terminal and port information, said public network IP and port information being encrypted.Thus, but also guarantee information safety of transmission is avoided malicious attack and visit.
Another aspect of the present invention also proposes a kind of terminal, comprising: judge module is used to judge whether the network environment at place, terminal changes; And link sets up module, is used for when network environment changes initiatively setting up with server linking.
Terminal according to the embodiment of the invention; When network environment changes, initiatively set up and link with server; And do not send information, and having guaranteed the fail safe of end message thus, server can obtain the public network IP and the port information at terminal through the link of setting up simultaneously; Thereby make other-end can directly set up link with it, realize the real-time, interactive of information.
In one embodiment of the invention, said terminal also comprises: logging modle, the identify label that is used to write down the other-end of being trusted by said terminal; And sending module, be used for receiving and sending communication information through said chain, wherein, said communication information comprises the identify label at said terminal and the identify label of the other-end of being trusted by said terminal.Thus, avoid end message, guarantee the fail safe of end message by malice observer visit.
In one embodiment of the invention, said terminal also comprises: encrypting module is used for before said sending module sends said communication information, said communication information being encrypted.Thus, the guarantee information safety of transmission is avoided malicious attack and visit.
Another aspect of the present invention also proposes a kind of terminal, comprising: sending module is used for sending query requests to server; Receiver module is used to receive the public network IP and the port information at another terminal that said server returns according to said query requests; And link sets up module, is used for linking passage according to the public network IP at said another terminal and port information and said another terminal foundation.
According to the terminal of the embodiment of the invention,, realize directly setting up linking, and then can realize that the realization of information is mutual with other-end through public network IP and port information to the server lookup other-end.
Aspect that the present invention adds and advantage part in the following description provide, and part will become obviously from the following description, or recognize through practice of the present invention.
Description of drawings
Above-mentioned and/or additional aspect of the present invention and advantage are from obviously with easily understanding becoming the description of embodiment below in conjunction with accompanying drawing, wherein:
Fig. 1 is the sketch map of the point-to-point information transferring method of prior art;
Fig. 2 is the flow chart of point-to-point information transferring method according to an embodiment of the invention;
Fig. 3 is the flow chart of point-to-point information transferring method in accordance with another embodiment of the present invention;
Fig. 4 is the structural representation of the point-to-point information transmission system according to an embodiment of the invention;
Fig. 5 is the structural representation at terminal according to an embodiment of the invention;
Fig. 6 is the structural representation at terminal in accordance with another embodiment of the present invention;
Fig. 7 is the structural representation at the terminal of another embodiment according to the present invention; And
Fig. 8 is the structural representation at the terminal of another embodiment according to the present invention.。
Embodiment
Describe embodiments of the invention below in detail, the example of said embodiment is shown in the drawings, and wherein identical from start to finish or similar label is represented identical or similar elements or the element with identical or similar functions.Be exemplary through the embodiment that is described with reference to the drawings below, only be used to explain the present invention, and can not be interpreted as limitation of the present invention.
In description of the invention, it will be appreciated that term " first ", " second " etc. only are used to describe purpose, and can not be interpreted as indication or hint relative importance.In description of the invention, need to prove that only if clear and definite regulation and qualification are arranged in addition, term " links to each other ", " connection " should be done broad understanding, for example, can be to be fixedly connected, also can be to removably connect, or connect integratedly; Can be mechanical connection, also can be to be electrically connected; Can be directly to link to each other, also can link to each other indirectly through intermediary.For those of ordinary skill in the art, can concrete condition understand above-mentioned term concrete implication in the present invention.In addition, in description of the invention, except as otherwise noted, the implication of " a plurality of " is two or more.
Describe and to be understood that in the flow chart or in this any process otherwise described or method; Expression comprises module, fragment or the part of code of the executable instruction of the step that one or more is used to realize specific logical function or process; And the scope of preferred implementation of the present invention comprises other realization; Wherein can be not according to order shown or that discuss; Comprise according to related function and to carry out function by the mode of basic while or by opposite order, this should be understood by the embodiments of the invention person of ordinary skill in the field.
Describe point-to-point information transferring method in detail below in conjunction with Figure of description according to the embodiment of the invention.
Fig. 2 is the flow chart of point-to-point information transferring method according to an embodiment of the invention.As shown in Figure 2, comprise the steps according to the point-to-point information transferring method of the embodiment of the invention.
Step S101, whether the first terminal judges network environment changes.
In an embodiment of the present invention, first terminal can be any support data mobile network's (like EDGE, GPRS, 3G etc.) a equipment, the GPS Tracker that uses like children etc.In addition, need to prove that first terminal possibly be positioned at private network inside, itself does not also know its outer net IP.Server has public network IP, can be by first terminal through internet access.When first terminal is positioned at gateway, and the link between the gateway includes but not limited to forms such as WiFi, GPRS, EDGE, 3G, LAN.
In addition, in an embodiment of the present invention, network environment changes and can comprise that the base station changes.
Step S102 changes if judge network environment, and then first terminal is initiatively set up first with server and linked.
In embodiments of the present invention, first terminal is only initiatively set up with server and is linked, and does not send any content.Thus, do not need server to have jumbo storage capacity, reduce cost.
Step S103, server obtains and preserves the public network IP and the port information at first terminal according to first link.
First terminal and server set up first link after, server can obtain the IP and the port information of first link.The IP of this link is the public network IP at first terminal, and the port at port to be the gateway at first terminal place distribute to through network address translation first terminal.Should be understood that because the mapping relations of port are simple, so the memory space that server needs is also little, but need has retrieval rate faster.
Step S104, second terminal to server sends query requests.
In embodiments of the present invention, second terminal can be any equipment that can insert the Internet, like desktop computer, smart mobile phone and panel computer etc.The observer is if go for the data at first terminal, can be through being arranged on application program on second terminal initiatively to the public network IP and the port information at server lookup first terminal.
Step S105, server is sent to second terminal according to query requests with the public network IP and the port information at first terminal.
Step S106, second terminal is set up second according to the public network IP at first terminal and port information with first terminal and is linked, and carries out information interaction through second link with first terminal.
Point-to-point information transferring method according to the embodiment of the invention; First terminal only needs when network environment changes, initiatively to initiate link to server, and server is not preserved first terminal information, has kept the privacy of first end message; And do not send any information owing to only set up link; Therefore the deployment of server is simple, and system resource requirements is little, and cost is low.In addition; Can the public network IP and the port information at first terminal be stored in the server through link; Can directly initiate link as observer's second terminal to first terminal through public network IP and port information thus to server lookup first terminal; Thereby can obtain first terminal information in real time, be very easy to the information interaction between the terminal.
Fig. 3 is the flow chart of point-to-point information transferring method in accordance with another embodiment of the present invention.As shown in Figure 3, comprise the steps according to the point-to-point information transferring method of the embodiment of the invention.
Step S201, the identify label at the terminal that first terminal records is trusted.
In embodiments of the present invention; First terminal is by acquisition target; Therefore most critical is to let first terminal trust observer's (perhaps, the employed terminal of observer), the identify label at the terminal that record is trusted in first terminal thus; So that coupling is sent the identify label at second terminal of request in follow-up operation, thereby the fail safe of guarantee information.In one embodiment of the invention, the identify label at terminal can be the cell-phone number at terminal, the Equipment Serial Number at terminal etc.
Step S202, whether the first terminal judges network environment changes.For example, whether the base station changes etc.
Step S203, if judge and to change, then first terminal is initiatively set up first with server and is linked and link to server through first and send a notification message.
In a single day first terminal finds that self residing network environment changes; Change like the base station; Then initiatively initiate link to server with public network IP; And send a notification message to server through this link, message content is the identify label at the identify label at first terminal and the terminal of being trusted by first terminal.
Step S204, server receiving notice message, the identify label at the terminal of obtain and preserve the identify label at first terminal, being trusted by first terminal and the public network IP and the port information at first terminal.
Particularly, after server receives the notification message that sends at first terminal, the identify label at the identify label at first terminal, second terminal and corresponding IP and the port information of first link that send this communication information are recorded in the quick storage system.The IP of this first link is the public network IP of the gateway at first terminal place, and the port at port to be the gateway at place, first terminal distribute to through network address translation first terminal.
Step S205, second terminal to server sends query requests.
The observer is if will obtain the data at first terminal, then through public network IP and the port information of second terminal active to server lookup first terminal.
Step S206, server judges according to the identify label at query requests, first terminal with by the identify label at the terminal of first terminal trust whether second terminal is legal.
After server receives query requests, need check whether second terminal of current transmission query requests is legal according to the identify label in the record, promptly whether first terminal is stated in notification message and is trusted this observer.Particularly, the identify label and the identify label at the terminal of being trusted by first terminal at second terminal are mated, if both are identical, then second terminal is legal, and server can be to second terminal transmits information; Otherwise, the inquiry of server refusal.
Step S207, if judge illegal, then server refusal inquiry.That is to say that server is not sent to mistrustful terminal, first terminal with the public network IP and the port information at first terminal, thus the fail safe of guarantee information.
Step S208, if judge legally, then server is sent to second terminal with the public network IP and the port information at first terminal.
Step S209, second terminal is set up second according to the public network IP at first terminal and port information with first terminal and is linked, and carries out data interaction through second link with first terminal.
For example, the cell-phone number that in children's GPS tracker, writes down the head of a family is as identify label.GPS tracker finds that the base station changes, and then initiatively sends a notification message to server, comprises the identify label of GPS tracker and the head of a family's cell-phone number.Server receives the notification message that GPS tracker sends, and IP and port information that the identify label of the GPS tracker that carries in the message, the head of a family's cell-phone number and the link that sends a notification message are carried are noted.The head of a family will obtain children's GPS position in real time, can be through being installed in dedicated program on the smart mobile phone to IP and the port information of server lookup GPS tracker.After the server authentication head of a family's smart mobile phone is legal; The smart mobile phone that IP and the port information of GPS tracker is sent to the head of a family; The head of a family initiates link and sends IP from positioning instruction to GPS tracker and port through the smart mobile phone active thus, and GPS tracker obtains current location and returns current location to the head of a family through the link of setting up after receiving positioning instruction.In addition,, can also accomplish greater functionality between the head of a family's smart mobile phone and children's the GPS tracker,, greatly make things convenient for the head of a family and children's information interaction like the backup of data among the GPS tracker, renewal etc. through above-mentioned link.
Point-to-point information transferring method according to the embodiment of the invention; Through sending a notification message the identify label at notification server first terminal and by the identify label of first end message; And in follow-up operation the checking second terminal legitimacy; Avoid first terminal information by malice observer visit, guaranteed the fail safe of first end message.
It will be appreciated that; In other embodiments of the invention, destroy for fear of the terminal of malice and malice observer's visit, also can send a notification message and/or the public network IP and port information at first terminal before; Information is encrypted, particularly can be with reference to the AES of prior art.Thus, further improve the fail safe of information.
The present invention also proposes a kind of point-to-point information transmission system on the other hand.
Fig. 4 is the structural representation of the point-to-point information transmission system according to an embodiment of the invention.As shown in Figure 4, comprise according to the point-to-point information transmission system of the embodiment of the invention: first terminal 100, server 200 and second terminal 300.
First terminal 100 is used to judge whether network environment changes, and when network environment changes, initiatively sets up first with server 200 and link.Server 200 is used for obtaining and preserve the public network IP and the port information at first terminal 100 according to first link; And receive the query requests that send at second terminal 300, and the public network IP and the port information at first terminal 100 is sent to second terminal 300 according to query requests.Second terminal 300 is used for sending query requests to server 200; And the public network IP and the port information at first terminal 100 returned according to query requests of reception server 200; And set up second according to the public network IP at first terminal 100 and port information with first terminal 100 and link, and carry out data interaction with first terminal 100 through second link.
In one embodiment of the invention, first terminal 100 can be any support data mobile network's (like EDGE, GPRS, 3G etc.) a equipment, the GPS Tracker that uses like children etc.Second terminal 300 can be any equipment that can insert the Internet, like desktop computer, smart mobile phone and panel computer etc.In addition, need to prove that first terminal 100 possibly be positioned at different private network inside with second terminal 300, itself does not also know its outer net IP.Server 200 has public network IP, can be by first terminal 100 and second terminal 300 through internet access.When first terminal 100 is positioned at gateway, and the link between the gateway includes but not limited to forms such as WiFi, GPRS, EDGE, 3G, LAN.
The point-to-point information transmission system according to the embodiment of the invention; First terminal only needs when network environment changes, initiatively to initiate link to server, and server is not preserved first terminal information, has kept the privacy of first end message; And do not send any information owing to only set up link; Therefore the deployment of server is simple, and system resource requirements is little, and cost is low.In addition; Can the public network IP and the port information at first terminal be stored in the server through link; Can directly initiate link as observer's second terminal to first terminal through public network IP and port information thus to server lookup first terminal; Thereby can obtain first terminal information in real time, be very easy to the information interaction between the terminal.
In other embodiments of the invention; First terminal 100 also is used to write down the identify label at the terminal of being trusted; And pass through first link and send communication informations to server 200, wherein, communication information comprises the identify label at first terminal 100 and the identify label at the terminal that quilt is trusted.Server 200 also is used to preserve the identify label at first terminal 100 and the identify label at the terminal of being trusted by first terminal 100; And the identify label at the identify label at the query requests of sending according to second terminal 300, first terminal 100 and the terminal of being trusted judges whether second terminal 300 is legal; And judging legal 300 o'clock of second terminal, just sending the public network IP and the port information at first terminal 100 to second terminal 300.Thus, the guarantee information safety of transmission is avoided malicious attack and visit.
In addition, should be understood that first terminal 100 also can be encrypted communication information for fear of the terminal destruction of malice and malice observer's visit before sending communication information.Likewise, server 200 also can be encrypted information before public network IP of sending first terminal 100 and port information.
Another aspect of the present invention also proposes a kind of terminal.
Fig. 5 is the structural representation at terminal according to an embodiment of the invention.As shown in Figure 5, comprise according to the terminal of the embodiment of the invention: judge module 110 is set up module 120 with link.
Judge module 110 is used to judge whether the network environment at place, terminal changes, and for example whether the base station changes etc.Link is set up module 120 and is used for when network environment changes, and initiatively sets up with server to link.
Terminal according to the embodiment of the invention; When network environment changes, initiatively set up and link with server; And do not send information, and having guaranteed the fail safe of end message thus, server can obtain the public network IP and the port information at terminal through the link of setting up simultaneously; Thereby make other-end can directly set up link with it, realize the real-time, interactive of information.
Fig. 6 is the structural representation at terminal in accordance with another embodiment of the present invention.As shown in Figure 6, on the basis of embodiment shown in Figure 5, this terminal also can comprise logging modle 130 and sending module 140.
Logging modle 130 is used for by the identify label of the other-end of terminal trust.Sending module 140 is used for receiving and sending communication information through the chain of setting up, and wherein, communication information comprises the identify label at terminal and the identify label of the other-end of being trusted by the terminal.Thus, can avoid end message, guarantee the fail safe of end message by malice observer visit.
Fig. 7 is the structural representation at the terminal of another embodiment according to the present invention.As shown in Figure 7, on the basis of embodiment shown in Figure 6, this terminal also can comprise encrypting module 150.
Encrypting module 150 is used for before sending module 140 sends communication information, communication information being encrypted.Thus, further the guarantee information safety of transmission avoids the terminal by malicious sabotage and visit.
Another aspect of the present invention also proposes a kind of terminal.
Fig. 8 is the structural representation at the terminal of another embodiment according to the present invention.As shown in Figure 8, comprise according to the terminal of the embodiment of the invention: module 330 is set up in sending module 310, receiver module 320 and link.
Sending module 310 is used for sending query requests to server.Receiver module 320 is used for the public network IP and the port information at another terminal that reception server returns according to query requests.Link is set up module 330 and is used for linking passage according to the public network IP and the port information at another terminal with another terminal foundation.
According to the terminal of the embodiment of the invention,, realize directly setting up linking, and then can realize that the realization of information is mutual with other-end through public network IP and port information to the server lookup other-end.
Although illustrated and described embodiments of the invention; For those of ordinary skill in the art; Be appreciated that under the situation that does not break away from principle of the present invention and spirit and can carry out multiple variation, modification, replacement and modification that scope of the present invention is accompanying claims and be equal to and limit to these embodiment.
Claims (15)
1. a point-to-point information transferring method is characterized in that, may further comprise the steps:
Whether the first terminal judges network environment changes;
If the said first terminal judges network environment changes, then said first terminal is initiatively set up first with server and is linked;
Said server obtains and preserves the public network IP and the port information at said first terminal according to said first link;
Query requests is sent to said server in second terminal;
Said server is sent to said second terminal according to said query requests with the public network IP and the port information at said first terminal;
Said second terminal is set up second according to the public network IP at said first terminal and port information with said first terminal and is linked, and carries out data interaction through said second link with said first terminal.
2. point-to-point information transferring method according to claim 1 is characterized in that, also comprises:
The identify label at the terminal that record is trusted in said first terminal;
Said first terminal receives and sends communication information through said first chain, and wherein, said communication information comprises the identify label at said first terminal and the identify label at said terminal of being trusted;
The identify label at said first terminal of said server for saving and the identify label at said terminal of being trusted;
Said server judges according to the identify label at said query requests, said first terminal and the identify label at said terminal of being trusted whether said second terminal is legal;
If it is legal to judge, said server sends the public network IP and the port information at said first terminal to said second terminal.
3. point-to-point information transferring method according to claim 2 is characterized in that, also comprises:
Before said first terminal to server sends a notification message, said notification message is encrypted.
4. point-to-point information transferring method according to claim 1 and 2 is characterized in that, also comprises:
Before said server sends the public network IP and port information at said first terminal to said second terminal, said public network IP and port information are encrypted.
5. point-to-point information transferring method according to claim 1 and 2 is characterized in that, said first terminal is positioned at different private networks with said second terminal, and said server has public network IP.
6. a point-to-point information transmission system is characterized in that, comprises first terminal, server and second terminal,
Said first terminal is used to judge whether network environment changes, and when network environment changes, initiatively sets up first with said server and link;
Said server; Be used for obtaining and preserve the public network IP and the port information at said first terminal according to said first link; And receive the query requests that send at said second terminal, and send the public network IP and the port information at said first terminal to said second terminal according to said query requests; And
Said second terminal; Be used for sending query requests to said server; And receive the public network IP and the port information at first terminal that said server returns according to said query requests; And set up second according to the public network IP at said first terminal and port information with said first terminal and link, and carry out data interaction with said first terminal through said second link.
7. the point-to-point information transmission system according to claim 6 is characterized in that, said first terminal is positioned at different private networks with said second terminal, and said server has public network IP.
8. the point-to-point information transmission system according to claim 6; It is characterized in that; Said first terminal also is used to write down the identify label at the terminal of being trusted; And pass through said first link and send communication information to said server, wherein, said communication information comprises the identify label at said first terminal and the identify label at said terminal of being trusted.
9. the point-to-point information transmission system according to claim 8; It is characterized in that; Said server also is used to preserve the identify label at said first terminal and the identify label at said terminal of being trusted; And judge according to the identify label at said query requests, said first terminal and the identify label at said terminal of being trusted whether said second terminal is legal, and when judging that said second terminal is legal, send the public network IP and the port information at said first terminal to said second terminal.
10. the point-to-point information transmission system according to claim 8 is characterized in that, said first terminal also is used for before sending said communication information, said communication information being encrypted.
11. the point-to-point information transmission system according to claim 6 is characterized in that, said server also is used for before public network IP of sending said first terminal and port information, said public network IP and port information being encrypted.
12. a terminal is characterized in that, comprising:
Judge module is used to judge whether the network environment at place, terminal changes; And
Module is set up in link, is used for when network environment changes, initiatively setting up with server linking.
13. terminal according to claim 12 is characterized in that, also comprises:
Logging modle, the identify label that is used to write down the other-end of being trusted by said terminal; And
Sending module is used for receiving and sending communication information through said chain, and wherein, said communication information comprises the identify label at said terminal and the identify label of the other-end of being trusted by said terminal.
14. terminal according to claim 13 is characterized in that, also comprises:
Encrypting module is used for before said sending module sends said communication information, said communication information being encrypted.
15. a terminal is characterized in that, comprising:
Sending module is used for sending query requests to server;
Receiver module is used to receive the public network IP and the port information at another terminal that said server returns according to said query requests; And
Module is set up in link, is used for linking passage according to the public network IP and the port information at said another terminal with said another terminal foundation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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| CN103414798A (en) * | 2013-07-31 | 2013-11-27 | 中国联合网络通信集团有限公司 | Communication method, device and system based on network address translation |
| CN104539517A (en) * | 2014-12-26 | 2015-04-22 | 深圳创维－Rgb电子有限公司 | Chatting method and system based on intelligent terminal local server |
| CN105188145A (en) * | 2015-09-29 | 2015-12-23 | 宇龙计算机通信科技(深圳)有限公司 | Communication method and related device |
| CN105357238A (en) * | 2014-08-19 | 2016-02-24 | 阿里巴巴集团控股有限公司 | Point-to-point data transmission method and device |
| CN105827514A (en) * | 2016-05-06 | 2016-08-03 | 中南大学 | Cloud storage based instant messaging data transmission system and method |
| CN106878360A (en) * | 2015-12-14 | 2017-06-20 | 中兴通讯股份有限公司 | The method for building up and device of data transmission channel |
| WO2020019972A1 (en) * | 2018-07-23 | 2020-01-30 | 百富计算机技术（深圳）有限公司 | Communication method between applications, terminal device, and storage medium |
| CN111711653A (en) * | 2020-05-06 | 2020-09-25 | 广州市中海达测绘仪器有限公司 | Point-to-point transmission device and method for RTCM data between GNSS receivers |
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| CN103414798A (en) * | 2013-07-31 | 2013-11-27 | 中国联合网络通信集团有限公司 | Communication method, device and system based on network address translation |
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| CN104539517A (en) * | 2014-12-26 | 2015-04-22 | 深圳创维－Rgb电子有限公司 | Chatting method and system based on intelligent terminal local server |
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| CN105188145B (en) * | 2015-09-29 | 2018-12-25 | 宇龙计算机通信科技(深圳)有限公司 | A kind of communication means and relevant device |
| CN106878360A (en) * | 2015-12-14 | 2017-06-20 | 中兴通讯股份有限公司 | The method for building up and device of data transmission channel |
| WO2017101554A1 (en) * | 2015-12-14 | 2017-06-22 | 中兴通讯股份有限公司 | Method and device for establishing data transmission channel |
| CN105827514A (en) * | 2016-05-06 | 2016-08-03 | 中南大学 | Cloud storage based instant messaging data transmission system and method |
| WO2020019972A1 (en) * | 2018-07-23 | 2020-01-30 | 百富计算机技术（深圳）有限公司 | Communication method between applications, terminal device, and storage medium |
| CN111711653A (en) * | 2020-05-06 | 2020-09-25 | 广州市中海达测绘仪器有限公司 | Point-to-point transmission device and method for RTCM data between GNSS receivers |
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