CN101621548A - Method and system for realizing terminal resource sharing based on peer connection system - Google Patents
Method and system for realizing terminal resource sharing based on peer connection system Download PDFInfo
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Abstract
The invention discloses a method and a system for realizing terminal resource sharing based on a peer connection system. The method comprises the following steps: a management server acquires the current node information of a first terminal node, wherein the current node information contains address information, media resource information and node state information; and the management server sends the address information to a second terminal node requesting the media resource information according to the node state information to realize resource sharing. The invention ensures that a terminal node with a changeable address in a P2P system continuously provides sharing resources when an IP address is changed under multiple conditions.
Description
Technical field
The present invention relates to communication technical field, relate in particular to a kind of implementation method and the system of sharing based on the terminal resource of reciprocity connected system in the communications field.
Background technology
At present, equity connects the file-sharing field that (Peer-to-Peer abbreviates P2P as) technology is widely used in computer network.The lot of advantages that the P2P technology possesses for example, good extensibility, cheap deployment expense, can be assembled slack resources etc., has attracted therefore that a lot of users use P2P software to share media datas such as music file, video file on the Internet.Along with the development of mobile communication technology, various mobile devices are universal day by day, and the operational environment of P2P shared file system progressively progressively develops into the mobile P 2 P network field from traditional wired P2P network field.
In traditional cable network field, especially the ADSL access way situation that network goes offline occurs through regular meeting.Specifically can be referring to Fig. 1, Fig. 1 is a system architecture schematic diagram in the traditional cable network.As shown in Figure 1, this system comprises: management server 10, gateway 20, terminal node 30, wherein, the P2P node connects network by the access way of ADSL, because objective reality network instability, when terminal node 30 connect 1 go offline after, again the dial-up access network time, it is another one IP address that gateway 20 is distributed to what connect that 2 terminal node 30 connects networks.Though do not change on the geographical position, again after the dial-up connection, generally speaking, system is the IP address redistributed of the network terminal with original different.Therefore, the IP address of the twice connection management server in front and back can change.
In wireless WIFI network field, the user in use, if the position of terminal node changes, may cause inserting and change, gateway also will change thereupon, cause the IP address of this terminal to change, can cause that also the exit address of Connection Service device changes simultaneously, specifically can be referring to Fig. 2.Fig. 2 is a system architecture schematic diagram in the WIFI network.As shown in Figure 2, this system comprises: management server (server) 10, gateway 20 and gateway (GW) 21, terminal node 30, management server 10 records the information of all nodes of system, the ID that comprises node, node address information, existing media content information etc. on the node.Terminal node 30 is initial by gateway 20 outlets, and Connection Service device 10 is when the geographical position of terminal node 30 changes, because the change of access point AP, the gateway 20 of connection management server 10 also is changed to gateway 21, and thus, changing also appears in the IP address of terminal node.
At mobile communications network, the user is in system's use, the geographical position changes, particularly after transprovincially moving, terminal provides service by different GGSN (Gateway GPRS Support Node abbreviates GGSN as), so GGSN can redistribute new IP address, make the IP address of terminal change, specifically can be referring to Fig. 3.Fig. 3 is a system architecture schematic diagram among the mobile network, as shown in Figure 3, this system comprises: management server (server) 10, GGSN 20 and GGSN 21, NodeB 40 and NodeB 41, and terminal 30, wherein, when terminal 30 during in inter-provincial roaming, switch to nodeB node 41 from nodeB node 40, owing to be subordinated to different GGSN nodes 20 and 21 respectively, therefore, portable terminal 30 is distributed under the different GGSN, and different IP addresses will be arranged.
In the correlation technique, in the P2P system, more than any situation in three kinds of situations take place, the capital causes the IP address of terminal node to change, cause other nodes can't correctly visit this terminal, the node that the address changes more can't be shared owned media resource to other P2P nodes.The stability of the whole P2P of final influence system is shared rate.
Summary of the invention
At in the correlation technique in the existing network access way, the IP address changes under the multiple situation, cause the terminal node content of address change in the P2P field shared problem can't be provided and propose the present invention, for this reason, main purpose of the present invention is to provide a kind of improved implementation method and system of sharing based on the terminal resource of reciprocity connected system, one of to address the above problem at least.
According to an aspect of the present invention, provide a kind of implementation method of sharing based on the terminal resource of reciprocity connected system.
The implementation method of sharing based on the terminal resource of reciprocity connected system according to the present invention comprises: management server obtains the present node information of first terminal node, and wherein, present node information comprises: address information, media resource information, node status information; Management server is sent to second terminal node of request media resource information to realize resource-sharing according to node status information with address information.
According to a further aspect in the invention, provide a kind of realization system of sharing based on the terminal resource of reciprocity connected system.
The realization system of sharing based on the terminal resource of reciprocity connected system according to the present invention comprises: acquiring unit and realization unit, wherein, acquiring unit, be used to obtain the present node information of first terminal node, wherein, present node information comprises: address information, media resource information, node status information; Realize the unit, be used for current address information being sent to second terminal node of request media resource information to realize resource-sharing according to node status information.
By the present invention, a kind of implementation of sharing based on the terminal resource of reciprocity connected system is provided, obtain the present node information of terminal node by management server, and with described current address information be sent to the request described media resource information terminal node to carry out resource-sharing, solved in the correlation technique in the existing network access way, the IP address changes under the multiple situation, cause the terminal node resource (content) of address change in the P2P system that shared problem can't be provided, and then when IP address under the multiple situation was changed, the terminal node of address change can continue to provide shared resource in the P2P system.
Other features and advantages of the present invention will be set forth in the following description, and, partly from specification, become apparent, perhaps understand by implementing the present invention.Purpose of the present invention and other advantages can realize and obtain by specifically noted structure in the specification of being write, claims and accompanying drawing.
Description of drawings
Accompanying drawing is used to provide further understanding of the present invention, and constitutes the part of specification, is used from explanation the present invention with embodiments of the invention one, is not construed as limiting the invention.In the accompanying drawings:
Fig. 1 is a system architecture schematic diagram in the traditional cable network;
Fig. 2 is a system architecture schematic diagram in the WIFI network;
Fig. 3 is a system architecture schematic diagram among the mobile network;
Fig. 4 is P2P Solution Architecture figure;
Fig. 5 is the flow chart based on the shared implementation method of the terminal resource of reciprocity connected system according to the embodiment of the invention;
Fig. 6 is the flow chart based on the shared implementation method of the terminal resource of reciprocity connected system of the example one according to the present invention;
Fig. 7 is the flow chart based on the shared implementation method of the terminal resource of reciprocity connected system of the example two according to the present invention;
Fig. 8 is the structured flowchart based on the shared realization system of the terminal resource of reciprocity connected system according to the embodiment of the invention;
Fig. 9 is the structured flowchart of the realization system shared based on the terminal resource of reciprocity connected system according to the preferred embodiment of the invention.
Embodiment
Functional overview
Consider in the correlation technique in the existing network access way, the IP address changes under the multiple situation, cause the terminal node content of address change in the P2P field that shared problem can't be provided, according to the embodiment of the invention, the resource share method and the system of terminal in a kind of reciprocity connected system are provided, after the P2P starting terminal, sign in to the P2P system, report local node information.In connection procedure, the P2P terminal regularly sends heartbeat message to management server, upgrades nodal information.Management server is replied heartbeat message, and wherein, this message comprises the address information that the P2P node is connected to management server.Because terminal network situation instability, after the address that reconnects of going offline changes, the address information that comprises in the answer message of the terminal node of P2P according to heartbeat, with the information of original record relatively, determine whether to report nodal information again to management server.When the media resource of terminal node changed, node initiatively reported change in resources information to management server.
Under the situation of not conflicting, embodiment and the feature among the embodiment among the application can make up mutually.
Below in conjunction with accompanying drawing the preferred embodiments of the present invention are described, should be appreciated that preferred embodiment described herein only is used for description and interpretation the present invention, and be not used in qualification the present invention.
Method embodiment
According to the embodiment of the invention, at first provide a kind of implementation method of sharing based on the terminal resource of reciprocity connected system.
At first introduce P2P Solution Architecture figure in conjunction with Fig. 4, Fig. 4 is P2P Solution Architecture figure, as shown in Figure 4, this system comprises: management server 1, terminal node 2, wherein, terminal node 2 further comprises: one or more portable terminals 20 (there is shown), one or more PC 30 (there is shown two), wherein, all information of the current terminal node of record on the management server 10, comprise address information, the Resources list of each terminal node, and the current state information of node etc.After terminal node 30 starts, at first be, report the nodal information of self to management server 10 registration logins.In running, node 30 timed sending heartbeat message are to management server 10.Simultaneously, in a single day owned resource changes, and just in time situation of change also is reported on the server 10.
Fig. 5 is the flow chart based on the shared implementation method of the terminal resource of reciprocity connected system according to the embodiment of the invention.As shown in Figure 5, comprise following processing (step S501-step S503) according to the embodiment of the invention based on reciprocity connected system:
Step S501: management server obtains the present node information of first terminal node, and wherein, present node information comprises: address information, media resource information, node status information;
Preferably, when terminal node moves, send heartbeat message to management server in reciprocity connected system every predetermined amount of time.Wherein, heartbeat message carries the address information and the id information of first terminal node.
Preferably, under the situation that media resource information changes, terminal node sends the media resource information of upgrading to management server.
Preferably, obtain at management server before the present node information of first terminal node, also comprise following processing:
(1) first terminal node receives from management server and replys message according to the heartbeat that heartbeat message returns, and wherein, heartbeat is replied message and carried the address information of carrying in the heartbeat message that once sends before first terminal node;
In specific implementation process, P2P terminal (first terminal node) reports local node information after starting.Wherein, this nodal information comprises: the ID of this node, and IP, Port, and media resource etc. that local node has.
And the P2P terminal regularly sends heartbeat message to management server, upgrades nodal information.Wherein, node is in order to know the state of current each node at server end, to show that this node is a presence sending heartbeat message to management server.Simultaneously, upgrade this node key message, comprise the local IP of node, Port, the IP that this node is connected with management server, Port.If just owing to the quick switching of IP address takes place in the change in geographical position, the local IP after then switching, Port information reports management server by this heartbeat.And the external IP that is connected with management server, Port then can obtaining by data packet head.
Preferably, management server is replied message to heartbeat message, and this message is that message is replied in heartbeat, and wherein, this message comprises the address information that the P2P node is connected to management server.The external IP that terminal node is connected with management server, Port obtains by the information of replying from management server.
In specific implementation process, message is replied in the heartbeat that terminal node receiving management server is replied heartbeat message, and wherein, this heartbeat is replied message and carried the address information of carrying in the heartbeat message that once sends before first terminal node.
(2) terminal node determines that according to above-mentioned address information and local address information of preserving address information changes;
(3) terminal node reports present node information again to management server.
Preferably, to detect above-mentioned address information different with local address information of preserving when terminal node, show that address information (IP address) changes, and terminal node need report present node information again to management server.Wherein, this information comprises: id information, address information, media resource information that this terminal node is current;
Preferably, the management server present node information of obtaining terminal node realizes by following processing:
(1) management server receives the nodal information that reports from first terminal node, and wherein, nodal information comprises: the id information of terminal node, address information, media resource information etc.;
(2) heartbeat message that reports according to terminal node of the management server address information of carrying determines that the address information of first terminal node changes, and judges whether the id information of terminal node is present in the booking situation;
Preferably, management server receives after the heartbeat message, can determine that the address information of terminal changes according to address information and local current address information of preserving.
(3) if id information is present in the booking situation, management server is updated to the address information that heartbeat message carries with the address information of first terminal node in booking situation, and in booking situation, obtain the present node information of the address information correspondence that heartbeat message carries, wherein, present node information comprises the media resource information that first terminal node reports.
Wherein, booking situation is stored in the management server, is used for the present node information that the storage terminal node reports, and present node information is upgraded in booking situation.
Preferably, if id information is not present in the booking situation, then comprise following processing:
(1) management server sends message to first terminal node, and wherein, message carries the information that the indicating terminal node reports nodal information again;
(2) management server receives the nodal information that reports again from first terminal node, and stores, and wherein, nodal information comprises: id information, address information, media resource information;
(3) address information that reports again according to terminal node of management server is obtained present node information.
Step S503: management server is sent to second terminal node of request media resource information to carry out resource-sharing according to the state information of first terminal node with address information.
By the foregoing description, a kind of implementation method of sharing based on the terminal resource of reciprocity connected system is provided, can guarantee that terminal node after the IP address changes, need not to restart terminal software, the share service of media data still can normally be provided.
Example one
Fig. 6 is the flow chart based on the shared implementation method of the terminal resource of reciprocity connected system of the example one according to the present invention, as shown in Figure 6, the implementation method that the terminal resource based on reciprocity connected system of example one is shared according to the present invention comprises following processing (step S601-step S615):
Step S601: after the starting terminal, Login Register is to management server;
Step S603: its nodal information of terminal to report;
Wherein, above-mentioned nodal information comprises: media resource information, and address information, and state information etc.
Step S605: terminal node timed sending heartbeat message, wherein, this message comprises: the id information of this node, and current address information;
Wherein, in order to know the state of current each node at server end, show that this node is a presence.Simultaneously, upgrade this node key message, comprise the local IP of node, Port, the IP that this node is connected with management server, Port.If just owing to the quick switching of IP address takes place in the change in geographical position, the local IP after then switching, Port information reports management server by this heartbeat.And the external IP that is connected with management server, Port then can obtaining by data packet head.
Step S607: management server is replied message to terminal node, and wherein, this information carries the address information of this terminal node;
Step S609: terminal node compares address information and previously stored address information, judge whether identical, if, execution in step S611, otherwise, execution in step S615;
Step S611: judge whether media resource variation has taken place, if, execution in step S613 then, otherwise, execution in step S605;
Step S613: when the resource of terminal node changes, initiatively be reported to management server;
Step S615: terminal node reports its nodal information again to management server, registers in the record of management server, afterwards, continues execution in step S605;
Pass through the foregoing description, when the IP address of terminal node changes, can guarantee that other P2P nodes are in request resource, management server can be the node with this resource, and the correct nodal information (especially correct address information) of this node informs the node of this resource of request, thereby effectively reaches the effect of resource-sharing.
Fig. 7 is the flow chart based on the shared implementation method of the terminal resource of reciprocity connected system of the example two according to the present invention, as shown in Figure 7, the implementation method that the terminal resource based on reciprocity connected system of example two is shared according to the present invention comprises following processing (step S701-step S717):
Step S701: after the starting terminal, Login Register is to management server;
Step S703: its nodal information of terminal to report;
Wherein, above-mentioned nodal information comprises: media resource information, and address information, and state information etc.
Step S705: terminal node timed sending heartbeat message, wherein, this information comprises: the id information of this node, and current address information;
Step S707: the message of management server receiving terminal node, and the nodal information that writes down on the update service device.
Preferably, management server judges whether the IP address of terminal node changes, if do not change, and execution in step S715 then.If change, execution in step S709 then.
Step S709: under the prerequisite that changes in the IP address, whether the ID that management server is searched current heartbeat node exists in the record of management server.
Preferably, under first kind of situation, when this switching is very fast, nodal information is also not aging on management server eliminates (deletion), for example, and in Fig. 2 and system shown in Figure 3, when the IP address changed, nodal information may not have deleted, then execution in step S711.
Preferably, under second kind of situation, for example, and in system shown in Figure 1, if when terminal node obtains IP again, the id information of this node, aging on management server, and deletion, then execution in step S713.
Step S711: after management server is received the information of P2P node,, at first search index record in the management server according to the id information that reports, if this id information exists, then, directly upgrade index record according to this address information that reports, for example, the temporal information of node.
Step S713: management server detects in the message that the P2P node reports id information no longer in the system log (SYSLOG), and then management server initiatively sends a message to terminal node according to the source address of heartbeat message, inform that it reports nodal information once more, and registration, afterwards, continue execution in step S705;
Preferably, other P2P terminal nodes are in request resource, and management server can return to other nodes to the address information of the terminal node with request resource.
Step S715: terminal node judges whether media resource variation has taken place in running, if, then carry out S717, otherwise, return and carry out S705;
Step S717: when the resource of terminal node changes, initiatively be reported to management server.
By above-mentioned example, can guarantee that other P2P nodes are in request resource, management server can be the node with this resource, and the correct nodal information (especially correct address information) of this node informs the node of this resource of request, thereby effectively reaches the effect of resource-sharing.
System embodiment
According to the embodiment of the invention, also provide a kind of realization system of sharing based on the terminal resource of reciprocity connected system.
Fig. 8 is the structured flowchart based on the shared realization system of the terminal resource of reciprocity connected system according to the embodiment of the invention.Fig. 9 is the structured flowchart of the realization system shared based on the terminal resource of reciprocity connected system according to the preferred embodiment of the invention.As shown in Figure 8, the realization system of sharing according to the terminal resource based on reciprocity connected system of the embodiment of the invention comprises: acquiring unit 1, realization unit 2 are described below in conjunction with Fig. 9.
Acquiring unit 1 is used to obtain the present node information of first terminal node, and wherein, present node information comprises: address information, media resource information, node status information;
Preferably, as shown in Figure 9, above-mentioned acquiring unit 1 comprises: receiver module 10, determination module 12, judge module 14, first acquisition module 16, and wherein, receiver module 10 is used to receive the present node information that reports from first terminal node; Determination module 12 is connected to receiver module 10, is used for determining that according to the address information that the heartbeat message that terminal node reports carries the address information of first terminal node changes, and judges whether the id information of terminal node is present in the booking situation; Judge module 14 is connected to determination module 12, is used for judging whether id information is present in booking situation; First acquisition module 16, be connected to judge module 14, be used for the address information of first terminal node being updated to the address information that heartbeat message carries at booking situation, and in booking situation, obtain the present node information of the address information correspondence that heartbeat message carries, wherein, present node information comprises the media resource information that first terminal node reports.
Preferably, as shown in Figure 9, above-mentioned acquiring unit 1 can also comprise: sending module 18, memory module 20, second acquisition module 22, wherein, sending module 18 is used for not being present under the situation of booking situation at id information, sends message to first terminal node, wherein, message carries the information that the indicating terminal node reports nodal information again; Memory module 20 is connected to sending module 18, is used for that reception is come from the nodal information that first terminal node reports again and stores, and wherein, nodal information comprises: id information, address information, media resource information.Second acquisition module 22 is connected to memory module 20, is used for obtaining present node information according to the address information that terminal node reports again.
Realize unit 2, be connected to acquiring unit 1, be used for the current address information of first terminal node is sent to second terminal node of request media resource information to carry out resource-sharing.
Preferably, as shown in Figure 9, this system also comprises: receiving element 3, determining unit 4, report unit 5, wherein, receiving element 3 is used to receive the message from management server, and wherein, message carries current address information; Determining unit 4 is used for determining that according to current address information and local address information of preserving address information changes; Report unit 5, be used for reporting present node information again to management server.
Preferably, as shown in Figure 9, this system also comprises: transmitting element 6 is used for every the heartbeat message of predetermined amount of time to management server transmission terminal node, and under the situation that media resource information changes, send the media resource information of upgrading to management server.
Pass through the foregoing description, a kind of realization system of sharing based on the terminal resource of reciprocity connected system is provided, interact in conjunction with acquiring unit 1 and realization unit 2, when the IP address of terminal node changes, other nodes are still correctly visited this terminal, and the node that the address changes can be shared owned media resource to other P2P nodes.
In sum, pass through the above embodiment of the present invention, the implementation that the terminal resource based on reciprocity connected system that provides is shared, when the IP address of terminal node changes, other nodes are still correctly visited this terminal, and the node that the address changes can be shared owned media resource to other P2P nodes.And then can improve the stability and the shared rate of whole P2P system.
Obviously, those skilled in the art should be understood that, above-mentioned each module of the present invention or each step can realize with the general calculation system, they can concentrate on the single computing system, perhaps be distributed on the network that a plurality of computing system forms, alternatively, they can be realized with the executable program code of computing system, thereby, they can be stored in the storage system and carry out by computing system, perhaps they are made into each integrated circuit modules respectively, perhaps a plurality of modules in them or step are made into the single integrated circuit module and realize.Like this, the present invention is not restricted to any specific hardware and software combination.
The above is the preferred embodiments of the present invention only, is not limited to the present invention, and for a person skilled in the art, the present invention can have various changes and variation.Within the spirit and principles in the present invention all, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (11)
1. an implementation method of sharing based on the terminal resource of reciprocity connected system is characterized in that, comprising:
Management server obtains the present node information of first terminal node, and wherein, described present node information comprises: address information, media resource information, node status information;
Described management server is sent to described address information second terminal node of the described media resource information of request to realize resource-sharing according to described node status information.
2. method according to claim 1, it is characterized in that, when described first terminal node moves in described reciprocity connected system, send heartbeat message every predetermined amount of time to described management server, wherein, described heartbeat message carries the address information and the id information of described first terminal node.
3. method according to claim 1 is characterized in that, under the situation that described media resource information changes, described first terminal node sends the media resource information of upgrading to described management server.
4. method according to claim 2 is characterized in that, obtains at described management server before the described present node information of described first terminal node, and described method also comprises:
Described first terminal node receives from described management server and replys message according to the heartbeat that described heartbeat message returns, and wherein, described heartbeat is replied message and carried the address information of carrying in the heartbeat message that once sends before described first terminal node;
Described terminal node determines that according to described address information and local address information of preserving address information changes;
Described terminal node reports present node information again to described management server.
5. method according to claim 1 and 2 is characterized in that, the described present node information that described management server obtains described terminal node comprises:
Described management server receives the present node information that reports from described first terminal node;
The address information that the heartbeat message that described management server reports according to described terminal node carries determines that the address information of described first terminal node changes, and judges whether the id information of described terminal node is present in the booking situation;
If, described management server is updated to the address information that described heartbeat message carries with the address information of described first terminal node in described booking situation, and in described booking situation, obtain the described present node information of the address information correspondence that described heartbeat message carries, wherein, described present node information comprises the described media resource information that described first terminal node reports.
6. method according to claim 5 is characterized in that, after judging whether described id information is present in the booking situation, described method also comprises:
If described id information is not present in the described booking situation, then described management server sends message to described first terminal node, and wherein, described message carries the information that the described terminal node of indication reports nodal information again;
Described management server receives the nodal information that reports again from described first terminal node, and stores, and wherein, described nodal information comprises: id information, address information, media resource information;
The address information that described management server reports again according to described terminal node is obtained described present node information.
7. a realization system of sharing based on the terminal resource of reciprocity connected system is characterized in that, comprising:
Acquiring unit is used to obtain the present node information of first terminal node, and wherein, described present node information comprises: address information, media resource information, node status information;
Realize the unit, be used for described current address information being sent to second terminal node of the described media resource information of request to realize resource-sharing according to described node status information.
8. system according to claim 7 is characterized in that, described system also comprises:
Transmitting element is used for sending heartbeat message every predetermined amount of time to described management server, and under the situation that described media resource information changes, sends the media resource information of upgrading to described management server.
9. system according to claim 8 is characterized in that, described system also comprises:
Receiving element, message is replied in the heartbeat that is used to receive from described management server, and wherein, described heartbeat is replied message and is carried the address information of carrying in the heartbeat message that once sends before described first terminal node;
Determining unit is used for determining that according to described address information and local address information of preserving address information changes;
Report the unit, be used for reporting present node information again to described management server.
10. system according to claim 7 is characterized in that, described acquiring unit comprises:
Receiver module is used to receive the present node information that reports from described first terminal node;
Determination module is used for determining that according to the address information that the heartbeat message that described terminal node reports carries the address information of described first terminal node changes, and judges whether the id information of described terminal node is present in the booking situation;
Judge module is used for judging whether described id information is present in booking situation;
First acquisition module, be used for the address information of described first terminal node being updated to the address information that described heartbeat message carries at described booking situation, and in described booking situation, obtain the described present node information of the address information correspondence that described heartbeat message carries, wherein, described present node information comprises the described media resource information that described first terminal node reports.
11. system according to claim 10 is characterized in that, described acquiring unit also comprises:
Sending module is used for not being present under the situation of described booking situation at described id information, sends message to described first terminal node, and wherein, described message carries the information that the described terminal node of indication reports nodal information again;
Memory module is used for that reception is come from the nodal information that described first terminal node reports again and stores, and wherein, described nodal information comprises: id information, address information, media resource information;
Second acquisition module is used for obtaining described present node information according to the address information that described first terminal node reports again.
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