CN106210064A - A kind of based on the controllable P 2 P extensive remotely-sensed data distribution method authorized - Google Patents
A kind of based on the controllable P 2 P extensive remotely-sensed data distribution method authorized Download PDFInfo
- Publication number
- CN106210064A CN106210064A CN201610555676.6A CN201610555676A CN106210064A CN 106210064 A CN106210064 A CN 106210064A CN 201610555676 A CN201610555676 A CN 201610555676A CN 106210064 A CN106210064 A CN 106210064A
- Authority
- CN
- China
- Prior art keywords
- remotely
- sensed data
- information
- file
- server
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000000034 method Methods 0.000 title claims abstract description 35
- 238000013523 data management Methods 0.000 claims abstract description 79
- 238000007726 management method Methods 0.000 claims abstract description 42
- 230000008569 process Effects 0.000 claims abstract description 16
- 238000012544 monitoring process Methods 0.000 claims abstract description 7
- 230000008859 change Effects 0.000 claims description 9
- 238000004891 communication Methods 0.000 claims description 6
- 230000004044 response Effects 0.000 claims description 3
- 238000010200 validation analysis Methods 0.000 claims description 2
- 238000012550 audit Methods 0.000 claims 1
- 230000005540 biological transmission Effects 0.000 abstract description 3
- 238000005457 optimization Methods 0.000 abstract description 3
- 238000012795 verification Methods 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 13
- 238000005516 engineering process Methods 0.000 description 7
- 230000000903 blocking effect Effects 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 238000013475 authorization Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/06—Protocols specially adapted for file transfer, e.g. file transfer protocol [FTP]
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L63/00—Network architectures or network communication protocols for network security
- H04L63/08—Network architectures or network communication protocols for network security for authentication of entities
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L63/00—Network architectures or network communication protocols for network security
- H04L63/10—Network architectures or network communication protocols for network security for controlling access to devices or network resources
- H04L63/102—Entity profiles
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/10—Protocols in which an application is distributed across nodes in the network
- H04L67/104—Peer-to-peer [P2P] networks
- H04L67/1074—Peer-to-peer [P2P] networks for supporting data block transmission mechanisms
- H04L67/1078—Resource delivery mechanisms
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Computer Hardware Design (AREA)
- Computer Security & Cryptography (AREA)
- Computing Systems (AREA)
- General Engineering & Computer Science (AREA)
- Information Transfer Between Computers (AREA)
Abstract
The invention discloses a kind of based on the controllable P 2 P extensive remotely-sensed data distribution method authorized, issue remotely-sensed data including remotely-sensed data owner, remotely-sensed data user downloads remotely-sensed data, three flow processs of monitoring management of remotely-sensed data management platform, present invention employs data transmission method based on P2P, there is not multi-user and download the performance bottleneck causing Resource Server, convenient for users to use；Whole remote sensing resources trends towards the state of a kind of optimization, and remote sensing blocks of files can be uniformly distributed in systems, it is to avoid has the system caused after the node of rare blocks of files leaves system and withers away, effectively extends the life cycle of system；By remotely-sensed data management platform, the identity of P2P user side is audited and Authority Verification, it is to avoid remotely-sensed data flows into inappropriate P2P user side, it is ensured that the safety of remotely-sensed data；Enhance the control ability that data are distributed by remotely-sensed data manager, improve controllable safety in remotely-sensed data distribution procedure.
Description
Technical field
The present invention relates to Distributed Calculation, remotely-sensed data, data distribution areas of information technology, be specifically related to a kind of based on awarding
The controllable P 2 P extensive remotely-sensed data distribution method of power.
Background technology
Remote sensing image technology is increasingly mature, and high-resolution series remote sensing satellite constantly goes up to the air, and remotely-sensed data amount is drastically increasing
Long.Remotely-sensed data, after properly preserving, needs to be distributed to all types of user and share, preferably to use remotely-sensed data.
In the face of the remotely-sensed data of magnanimity, set up a set of extensive remotely-sensed data dissemination system, provide the user remotely-sensed data share and
Distribution is necessary.
Single remotely-sensed data file size is generally even more big hundreds of million, during data are distributed, takies network
Resource ratio is more serious, the flow pressure that structure paired data Distributor is huge.Use P2P (Peer-to-Peer) technology, profit
With client data sharing each other, can effectively solve the problems referred to above.P2P is otherwise known as " point-to-point " technology, in network
Client data were both provided, also download data, while descending taking, also take upstream bandwidth, make full use of the upper of client
Row carries other users a width of to provide resource, it is achieved the acceleration of network and extension.Thus the task of data distribution from relying on gathering
All clients in less several data distributing servers expand to whole P2P network.
Tradition P2P technology uses the mode of operation of complete distributed equity, it is difficult to realize the control of service end, and remote sensing number
According to being generally responsible for distribution by certain specialized agency, need extension in P2P mechanism to strengthen the control ability of service end, just can expire
The empowerment management requirement of foot specialized agency, for this it is proposed that a kind of extensive remotely-sensed data of controllable P 2 P based on mandate is distributed
Method.
Summary of the invention
It is an object of the invention to provide a kind of based on the controllable P 2 P extensive remotely-sensed data distribution method authorized, to solve
The problem certainly proposed in above-mentioned background technology.
For achieving the above object, the present invention provides following technical scheme: a kind of based on the extensive remote sensing of controllable P 2 P authorized
Data distributing method, issues remotely-sensed data, remotely-sensed data user download remotely-sensed data, remote sensing number including remotely-sensed data owner
According to three flow processs of monitoring management of management platform, described remotely-sensed data resource owner issues data phase has two kinds to realize mould
Formula: pattern 1: remotely-sensed data owner, by logging in remotely-sensed data management platform, uploads shared remotely-sensed data to remotely-sensed data
Management platform, it is achieved the distribution of remotely-sensed data is shared；Pattern 2: owing to single remotely-sensed data remote sensing image file size generally exists
Hundreds of million is even more big, shares the remotely-sensed data of number GB or bigger, remotely-sensed data resource for and needs limited at the network bandwidth
Person remotely-sensed data is uploaded to remotely-sensed data management platform inconvenience, remotely-sensed data resource person can physical copy need share
The distribution that remotely-sensed data file realizes remotely-sensed data to remotely-sensed data management platform is shared.
Described remotely-sensed data user is downloaded remotely-sensed data and is included that, with the next stage, remotely-sensed data user logs in remotely-sensed data
Management platform, searches and downloads the corresponding specific information of remotely-sensed data at the remotely-sensed data issue page and describe file, by P2P visitor
Family end downloads remotely-sensed data.
The system that realizes of the monitoring management of described remotely-sensed data management platform includes remotely-sensed data information management server, cloud
Storage, seed resource server and tracking server.
Preferably, described pattern 1 to realize flow process as follows:
(1) remotely-sensed data owner logs in remotely-sensed data management platform, uploads shared remotely-sensed data；
(2) the remotely-sensed data information management server in remotely-sensed data management platform checks the identity of remotely-sensed data owner, power
Limit, by rear, receive the remotely-sensed data file uploaded from remotely-sensed data owner, is stored in high in the clouds, simultaneously notice seed money
Source server describes file according to the information of remotely-sensed data file generated corresponding data；
(3) remotely-sensed data management platform seed resource server publishing information describe file to remotely-sensed data management platform in
Tracking server；
(4) information that the tracking server in remotely-sensed data management platform receives from seed resource server describes file, and
The information such as the user name in file and time that describe according to information are done Hash change and are generated the information description that PassKey establishment is special
File；
(5) special information is described file and is handed down to seed resource service by the tracking server in remotely-sensed data management platform
Device, and by page download remotely-sensed data information, file is described in tracking server offer；
(6) specific information that seed resource server reception tracking server sends describes file, and specifies this specific information to retouch
That states the remotely-sensed data corresponding to file deposits path, provides remotely-sensed data as a permanent Seed for remotely-sensed data demander
Resource.
Preferably, described pattern 2 to realize flow process as follows:
(1) remotely-sensed data owner directly will be needed by the remotely-sensed data information management server in remotely-sensed data management platform
The remotely-sensed data shared is stored in high in the clouds；
(2) the seed resource server in remotely-sensed data management platform is opened, it is intended that remotely-sensed data to be shared in cloud storage,
P2P client describes file automatically according to the information of remotely-sensed data file generated corresponding data；
(3) remotely-sensed data management platform seed resource server publishing information describe file to remotely-sensed data management platform in
Tracking server；
(4) information that the tracking server in remotely-sensed data management platform receives from seed resource server describes file, and
The information such as the user name in file and time that describe according to information are done Hash change and are generated the information description that PassKey establishment is special
File；
(5) special information is described file and is handed down to seed resource service by the tracking server in remotely-sensed data management platform
Device, and provide on tracking server and describe file by page download remotely-sensed data information；
(6) specific information that seed resource server reception tracking server sends describes file, and specifies this specific information to retouch
That states the remotely-sensed data corresponding to file deposits path, provides remotely-sensed data as a permanent Seed for remotely-sensed data user
Resource.
Preferably, described remotely-sensed data user download remotely-sensed data operating process is as follows:
(1) remotely-sensed data user logs in remotely-sensed data management platform, remotely-sensed data management platform validation user identity, it is provided that award
The remotely-sensed data information of power describes the download of file, and remotely-sensed data user is downloaded specific information and described file, and P2P client is certainly
Dynamic startup, and send request remotely-sensed data seed Peer list message to tracking server；
(2) tracking server communicates again with remotely-sensed data information management server, checks whether remotely-sensed data user has the right
Limit downloads this remotely-sensed data, if there being this remotely-sensed data authority of download, tracking server returns the neighbours of this remotely-sensed data at random
Node and seed list, without downloading this remotely-sensed data authority, tracking server the most directly returns null；
(3) remotely-sensed data user obtains neighbor node and the seed list of this remotely-sensed data from tracking server, arranges with seed
Peer communication in table, asks resource, it is achieved the download of remotely-sensed data, if that receive is null, illustrates not download this
The right of remotely-sensed data, then download less than data.
Preferably, described remotely-sensed data information management server is mainly responsible for information and the authority of remotely-sensed data user
And process remotely-sensed data owner and share the request of data, storing remotely-sensed data beyond the clouds, remotely-sensed data user passes through remote sensing number
Fill in real information according to management platform at remotely-sensed data information management server, register new user, remotely-sensed data system administration people
The verity of member's examination & verification information of registered users, authorizes Sharing of remote sensing data or remotely-sensed data download or Sharing of remote sensing data and download
Authority, authorize the remotely-sensed data user of Share Permissions and uploaded by remotely-sensed data management platform and share real-time remotely-sensed data literary composition
Part, and in information management server keeping records, the remotely-sensed data user authorizing download permission manages platform by remotely-sensed data
Download special information and describe file, when utilizing P2P client request data resource, under information management server checking user
Carrying authority, whether notice tracking server distributes remotely-sensed data seed Peer list.
Preferably, described seed resource server mainly generates information according to the remotely-sensed data in high in the clouds and describes file, will letter
Breath describes file and is sent to Tracker server, and Tracker server describes the user name in file and time etc. according to information
Information is done the Hash change generation special information of PassKey establishment and is described file, issues this specific information and describes file to seed
Resource Server, seed resource server receives specific information and describes file, provides remotely-sensed data as a permanent Seed
Download, it is achieved sharing of remotely-sensed data.
Preferably, all of participation node collect and add up these nodes in described tracking server mainly tracking system
State, in order to find mutually between node to remove swap file block, and inquiry and the remote sensing number of remotely-sensed data resource information be provided
It is believed that breath describes the download of file, remotely-sensed data demander is opened remotely-sensed data by P2P client and is described file, connects
Tracker server, Tracker server checks client-side information by remotely-sensed data information management server, verifies user
Whether having permission this remotely-sensed data of download, if having permission download remotely-sensed data, returning the neighbor node of remotely-sensed data the most at random
And seed list, without authority, directly return null, if having permission download remotely-sensed data, client takes from Tracker
Business device gets seed list, communicates with the Peer in seed list, asks remotely-sensed data resource, and irregularly to Tracker
Server communication, reports remotely-sensed data resource downloading situation, for the safety of remotely-sensed data, in order to strengthen remotely-sensed data management
The platform control ability to remotely-sensed data user aspect P2P client, in the report resource downloading feelings of response P2P client
Condition, Tracker server incidentally replys customizing messages to P2P client, controls P2P client and ask resource to seed list,
Realize special P 2 P user to obtain less than remotely-sensed data, the safety of protection remotely-sensed data information.
Compared with prior art, the invention has the beneficial effects as follows: 1, rely on minor resource clothes for traditional remotely-sensed data distribution
Business device and the network bandwidth are not enough, present invention employs data transmission method based on P2P, there is not multi-user's download and cause resource
The performance bottleneck of server；2, remotely-sensed data management platform provides for Resource Manager and directly issues remotely-sensed data file, or
It is autonomously generated the mode of the distribution such as multiple Sharing of remote sensing data of issuing seed file, convenient for users to use；3, remotely-sensed data
Management platform have employed minimum blocks of files priority principle and blocking algorithm, and whole remote sensing resources trends towards the state of a kind of optimization,
Remote sensing blocks of files can be uniformly distributed in systems, it is to avoid has the system caused after the node of rare blocks of files leaves system and disappears
Die, effectively extend the life cycle of system；4, the information of remotely-sensed data information management server management remotely-sensed data user
And authority, by remotely-sensed data management platform, the identity of P2P user side is audited and Authority Verification, it is to avoid remotely-sensed data inflow
Inappropriate P2P user side, it is ensured that the safety of remotely-sensed data；5, based on tracker, by directly broadcast and incidentally message can
To control the download behavior of P2P user side, enhance the control ability that data are distributed by remotely-sensed data manager, support in distribution
During, cancel P2P client authorization, forced interruption is downloaded, and improves controllable safety in remotely-sensed data distribution procedure.
Accompanying drawing explanation
Fig. 1 is based on the schematic diagram authorizing controlled P2P extensive remotely-sensed data management system；
Fig. 2 is the schematic diagram that data shared by extensive remotely-sensed data management platform；
Fig. 3 is the schematic diagram that data downloaded by extensive remotely-sensed data management platform；
Fig. 4 is Peer relation schematic diagram in extensive remotely-sensed data management system；
Fig. 5 selects algorithm flow schematic diagram for the most rare sheet；
Fig. 6 is that remotely-sensed data management platform courses P2P user downloads data pattern 1 schematic diagram；
Fig. 7 is that remotely-sensed data management platform courses P2P user downloads data pattern 2 schematic diagram.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Describe, it is clear that described embodiment is only a part of embodiment of the present invention rather than whole embodiments wholely.Based on this
Embodiment in invention, the every other reality that those of ordinary skill in the art are obtained under not making creative work premise
Execute example, broadly fall into the scope of protection of the invention.
Referring to Fig. 1-7, the present invention provides a kind of technical scheme: a kind of based on the controllable P 2 P extensive remote sensing number authorized
According to distribution method, issue remotely-sensed data, remotely-sensed data user download remotely-sensed data, remotely-sensed data including remotely-sensed data owner
Three parts of monitoring management of management platform, described remotely-sensed data resource owner issues data phase two kinds of implementation patterns:
Pattern 1: remotely-sensed data owner, by logging in remotely-sensed data management platform, uploads shared remotely-sensed data and manages to remotely-sensed data
Platform, it is achieved the distribution of remotely-sensed data is shared；Pattern 2: owing to single remotely-sensed data remote sensing image file size is generally hundreds of
Million is even more big, shares the remotely-sensed data of number GB or bigger for and needs limited at the network bandwidth, and remotely-sensed data resource person will
Remotely-sensed data is uploaded to the inconvenience of remotely-sensed data management platform, and remotely-sensed data resource person can need shared remote sensing by physical copy
The distribution that data file realizes remotely-sensed data to remotely-sensed data management platform is shared；
Described remotely-sensed data user is downloaded remotely-sensed data and is included with the next stage, and remotely-sensed data user logs in remotely-sensed data management
Platform, searches and downloads the corresponding specific information of remotely-sensed data at the remotely-sensed data issue page and describe file, by P2P client
Download remotely-sensed data；
The system that realizes of the monitoring management of described remotely-sensed data management platform includes remotely-sensed data information management server, Yun Cun
Storage, seed resource server and tracking server.
Fig. 1 is the schematic diagram of the present invention extensive remotely-sensed data based on the P2P authorized management system, and this system includes three
Individual part: remotely-sensed data owner, remotely-sensed data management platform, remotely-sensed data user.Wherein:
Remotely-sensed data owner: be the supplier of remotely-sensed data, shares remotely-sensed data and manages platform to remotely-sensed data.Remotely-sensed data
In management, information management server checking user profile and authority, process the sharing request of user.
Remotely-sensed data management platform: be the core of the present invention extensive remotely-sensed data based on the P2P authorized management system
Part, including remotely-sensed data information management server, cloud storage, seed resource server and tracking server, mainly verifies use
The legitimacy at family and authority, be responsible for receiving the remotely-sensed data that remotely-sensed data owner shares, automatically generate the information of remotely-sensed data
Describing meta file, being published to tracking server provides the inquiry of remotely-sensed data and information to describe meta file for remotely-sensed data user
Download, and using seed resource server as permanent Seed provide data resource.
Remotely-sensed data user: can log in remotely-sensed data management platform, inquiry remotely-sensed data information also downloads corresponding letter
Breath describes meta file, by client downloads remotely-sensed data.
Below, will be to core in native system: remotely-sensed data management platform, it is analyzed in conjunction with diagram: remotely-sensed data
Management platform is to be made up of remotely-sensed data information management server, cloud storage, seed resource server and tracking server.Its
In:
Remotely-sensed data information management server is responsible for the information of remotely-sensed data user and authority and processes remotely-sensed data and have
Person shares the request of data, stores remotely-sensed data beyond the clouds.Seed resource server generates information according to the remotely-sensed data in high in the clouds
Describing file, information describes file and is sent to tracking server, tracking server describes the user name in file according to information
And the information such as time does Hash change and generate PassKey and create special information and describe file, issue this specific information and describe literary composition
Part is to seed resource server.Seed resource server receives specific information and describes file, provides as a permanent Seed
The download of remotely-sensed data, it is achieved sharing of remotely-sensed data.All of participation node receiving in tracking server mainly tracking system
Collect and add up the state of these nodes, in order to find mutually between node to remove swap file block, and provide remotely-sensed data resource to believe
The inquiry of breath and remotely-sensed data information describe the download of file.Remotely-sensed data demander opens remotely-sensed data by P2P client
Describe file, connect tracking server.Tracking server checks client-side information by remotely-sensed data information management server, tests
Whether card user has permission this remotely-sensed data of download, if having permission download remotely-sensed data, returns the neighbour of remotely-sensed data the most at random
Occupy node and seed list；Without authority, directly return null.If having permission download remotely-sensed data, client from
Tracker server gets seed list, communicates with the Peer in seed list, request remotely-sensed data resource, and irregularly
To Tracker server communication, report remotely-sensed data resource downloading situation.For the safety of remotely-sensed data, distant in order to strengthen
The sense data management platform control ability to remotely-sensed data user aspect P2P client, in the report money of response P2P client
Situation is downloaded in source, and Tracker server is incidentally replied customizing messages and asked to seed list to P2P client, control P2P client
Seek resource, it is achieved special P 2 P user obtains less than remotely-sensed data, the safety of protection remotely-sensed data information.
As in figure 2 it is shown, be data sharing schematic diagram based on the P2P extensive remotely-sensed data management platform authorized.Specifically
From the point of view of, remotely-sensed data resource-side is shared data and is comprised the following steps:
(1) remotely-sensed data owner logs in remotely-sensed data management platform, uploads shared remotely-sensed data；
(2) the remotely-sensed data information management server reception in remotely-sensed data management platform is uploaded from remotely-sensed data owner
Remotely-sensed data file, is stored in high in the clouds, and notice seed resource server is according to remotely-sensed data file generated corresponding data simultaneously
Information describes file；
(3) remotely-sensed data management platform seed resource server publishing information describe file to remotely-sensed data management platform in
Tracking server；
(4) information that the tracking server in remotely-sensed data management platform receives from seed resource server describes file, and
The information such as the user name in file and time that describe according to information are done Hash change and are generated the information description that PassKey establishment is special
File；
(5) special information is described file and is handed down to seed resource service by the tracking server in remotely-sensed data management platform
Device, and by page download remotely-sensed data information, file is described in tracking server offer；
(6) specific information that seed resource server reception tracking server sends describes file, and specifies this specific information to retouch
That states the remotely-sensed data corresponding to file deposits path.Remotely-sensed data is provided for remotely-sensed data demander as a permanent Seed
Resource.
As it is shown on figure 3, be that data based on the P2P extensive remotely-sensed data management platform authorized download schematic diagram.Specifically
From the point of view of, remotely-sensed data resource-side is shared data and is comprised the following steps:
(1) remotely-sensed data user is downloaded specific information and is described file, and P2P client automatically starts, and sends out to tracking server
Send request remotely-sensed data seed Peer list message.
(2) tracking server communicates with remotely-sensed data information management server, checks whether remotely-sensed data user has the right
Limit downloads this remotely-sensed data, if there being this remotely-sensed data authority of download, tracking server returns the neighbours of this remotely-sensed data at random
Node and seed list；Without downloading this remotely-sensed data authority, tracking server the most directly returns null.
(3) remotely-sensed data user obtains neighbor node and the seed list of this remotely-sensed data from tracking server, with kind
Peer communication in sublist, asks resource, it is achieved the download of remotely-sensed data.If that receive is null, under illustrating not have
Carry the right of this remotely-sensed data, then download less than data.
In order to more intuitively illustrate that can effectively solve remotely-sensed data based on the P2P extensive remotely-sensed data dissemination system authorized exists
When distribution is shared, the pressure of server is big, and the data distribution shortcoming such as not in time, the following detailed description of extensive based on the P2P authorized
Remotely-sensed data dissemination system shares the flow process of data.Assume that this remotely-sensed data is divided into 100 data slots altogether, numbered
D1, D2 ..., D100, there is a user to want to download this remotely-sensed data, the numbering of user is respectively U1, U2 ..., U100,
The seed information that the information of 100 users and seed client (numbered Us) provide (includes IP address, port numbers, client
End ID, the data slot downloaded) all on Tracker server, then these 101 back end just constitute
101 Peer nodes in P2P system, its relation schematic diagram as shown in Figure 4, can directly count between any two node
According to exchange.Detailed process is as follows:
After node U1 is connected to Tracker server, find that only node Us has data, the most random download one at node Us
Individual data slice D1, after node U1 download data slot D1 completes, just passes to Tracker server the information completed.
After node U2 is connected to Tracker server, wanting to download data slice D1, find only node U1, Us has number
According to sheet D1, nearest node is route with regard to chosen distance oneself and is downloaded, after node U2 download data slice D1 completes, also complete
The information become passes to Tracker server.
After node U3 is connected to Tracker server, wanting to download data slice D1, find only node U1, U2, Us have
Data slice D1, route nearest node with regard to chosen distance oneself and is downloaded, when node U3 downloads after data slice D1 completes, also
The information completed passes to Tracker server.
Data carry out data exchange according to basic law above, it is achieved multiple users download remotely-sensed data.
From flow process above it can be seen that data to be downloaded not necessarily are downloaded from server, can be passed through any other
Node is downloaded, the exchanged form of this data, can select shortest route, is greatly shortened the number of turnover of packet, from
And improve transmission speed, decrease the pressure of data server.
As it is shown in figure 5, be that the most rare sheet that this remotely-sensed data management platform is used selects algorithm flow schematic diagram.User
When downloading remotely-sensed data, force to use minimum blocks of files preferentially to download principle.Minimum blocks of files preferentially refers to download knot to one
For Dian, when the blocks of files selecting the next one to be downloaded, that all minimum in its neighbor node set of prioritizing selection file
Block goes to download, and those the most relatively large number of blocks of files, download of putting behind.In this " preferential plan of minimum blocks of files
Under slightly ", whole system can trend towards the state of a kind of optimization, and blocks of files can be uniformly distributed in systems, improves whole system
Performance.And avoid and have the system caused after the node of rare blocks of files leaves system and wither away, effectively extend system
Life cycle.The flow process of the minimum blocks of files priority algorithm of the present invention is as follows:
Each node obtains the available of each file sheet by the availability traveling through the file sheet of all nodes being successfully connected
Degree.When each node has this sheet, the numerical value of this article pieces availability adds one.Travel through all nodes being successfully connected to be had
Sheet after, obtain one and have recorded all this numbers of node number being successfully connected the file sheet that node includes oneself being had
Group is referred to as availability array, and the minima of this array is then for having this sheet node number in this network, and also representing this sheet is
This nodes is minimum to be had.Threshold value is calculated according still further to certain ratio, i.e. threshold value=[(100+ by this value
RangePercent) * sheet number minima]/100.If each value of this availability array and threshold value are compared numerical value
It is marked as rare file sheet less than threshold value then this sheet, carrys out record by file sheet availability boolean's array.If it is and minimum
Minimum availability is directly set to 999 between 10 to 999 by availability, then can be set to rare by the rare degree of all,
Represent that the node in BT network now and seed number are enough, can arbitrarily select file sheet to download.
As shown in Figure 6 and Figure 7, it is to strengthen the remotely-sensed data management platform two kinds of tools to P2P client downloads data management
The scheme that body realizes.The remotely-sensed data management platform control to P2P client, can be by tracking server, by directly broadcast
Notice controls and incidentally message control two schemes realizes.
Fig. 6 is incidentally message control program, can be communicated with Tracker aperiodically when downloading file by client,
Then, Tracker server is incidentally intended blocking nodal information list ChokePeerList(PeerID, ResourceName,
ResourceHash) giving corresponding P2P client, P2P client blocks corresponding connection according to ChokePeerList, real
Now control blocked P2P client and obtain remotely-sensed data.
Fig. 7 is directly to broadcast notification scheme, the most each P2P client reserves one request service, Tracker server
Before P2P user side is not fully complete remotely-sensed data download, can directly push special P 2 P client ends relative to all of
Peer in Peer, Peer list receives Tracker notification message, and message performs the most as per advice, it is achieved control P2P client
Obtain the function of remotely-sensed data, thus ensure the safety of remotely-sensed data.
Although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, permissible
Understand and these embodiments can be carried out multiple change without departing from the principles and spirit of the present invention, revise, replace
And modification, the scope of the present invention be defined by the appended.
Claims (7)
1., based on the controllable P 2 P extensive remotely-sensed data distribution method authorized, including remotely-sensed data, owner issues remote sensing
Data, remotely-sensed data user download remotely-sensed data, three parts of monitoring management of remotely-sensed data management platform, and its feature exists
Issue data phase in: described remotely-sensed data resource owner and have two kinds of implementation patterns: pattern 1: remotely-sensed data owner pass through
Log in remotely-sensed data management platform, upload shared remotely-sensed data and manage platform to remotely-sensed data, it is achieved the distribution of remotely-sensed data
Share；Pattern 2: generally even more big, at Netowrk tape hundreds of million due to single remotely-sensed data remote sensing image file size
The remotely-sensed data of number GB or bigger shared by wide limited and needs, and remotely-sensed data is uploaded to remotely-sensed data pipe by remotely-sensed data resource person
The inconvenience of platform, remotely-sensed data resource person can need the remotely-sensed data file shared flat to remotely-sensed data management by physical copy
Platform realizes the distribution of remotely-sensed data and shares；
Described remotely-sensed data user is downloaded remotely-sensed data and is included with the next stage, and remotely-sensed data user logs in remotely-sensed data management
Platform, searches and downloads the corresponding specific information of remotely-sensed data at the remotely-sensed data issue page and describe file, by P2P client
Download remotely-sensed data；
The system that realizes of the monitoring management of described remotely-sensed data management platform includes remotely-sensed data information management server, Yun Cun
Storage, seed resource server and tracking server.
The most according to claim 1 a kind of based on the controllable P 2 P extensive remotely-sensed data distribution method authorized, its feature exists
In, described pattern 1 to realize flow process as follows:
(1) remotely-sensed data owner logs in remotely-sensed data management platform, uploads shared remotely-sensed data；
(2) the remotely-sensed data information management server in remotely-sensed data management platform checks the identity of remotely-sensed data owner, power
Limit, by rear, receive the remotely-sensed data file uploaded from remotely-sensed data owner, is stored in high in the clouds, simultaneously notice seed money
Source server describes file according to the information of remotely-sensed data file generated corresponding data；
(3) remotely-sensed data management platform seed resource server publishing information describe file to remotely-sensed data management platform in
Tracking server；
(4) information that the tracking server in remotely-sensed data management platform receives from seed resource server describes file, and
The information such as the user name in file and time that describe according to information are done Hash change and are generated the information description that PassKey establishment is special
File；
(5) special information is described file and is handed down to seed resource service by the tracking server in remotely-sensed data management platform
Device, and by page download remotely-sensed data information, file is described in tracking server offer；
(6) specific information that seed resource server reception tracking server sends describes file, and specifies this specific information to retouch
That states the remotely-sensed data corresponding to file deposits path, provides remotely-sensed data as a permanent Seed for remotely-sensed data demander
Resource.
The most according to claim 1 a kind of based on the controllable P 2 P extensive remotely-sensed data distribution method authorized, its feature exists
In, described pattern 2 to realize flow process as follows:
(1) remotely-sensed data owner directly will be needed by the remotely-sensed data information management server in remotely-sensed data management platform
The remotely-sensed data shared is uploaded and is stored in high in the clouds；
(2) the seed resource server in remotely-sensed data management platform is opened, it is intended that remotely-sensed data to be shared in cloud storage,
P2P client describes file automatically according to the information of remotely-sensed data file generated corresponding data；
(3) remotely-sensed data management platform seed resource server publishing information describe file to remotely-sensed data management platform in
Tracking server；
(4) information that the tracking server in remotely-sensed data management platform receives from seed resource server describes file, and
The information such as the user name in file and time that describe according to information are done Hash change and are generated the information description that PassKey establishment is special
File；
(5) special information is described file and is handed down to seed resource service by the tracking server in remotely-sensed data management platform
Device, and provide on tracking server and describe file by page download remotely-sensed data information；
(6) specific information that seed resource server reception tracking server sends describes file, and specifies this specific information to retouch
That states the remotely-sensed data corresponding to file deposits path, provides remotely-sensed data as a permanent Seed for remotely-sensed data user
Resource.
The most according to claim 1 a kind of based on the controllable P 2 P extensive remotely-sensed data distribution method authorized, its feature exists
In, it is as follows that described remotely-sensed data user downloads remotely-sensed data operating process:
(1) remotely-sensed data user logs in remotely-sensed data management platform, remotely-sensed data management platform validation user identity, it is provided that award
The remotely-sensed data information of power describes the download of file, and remotely-sensed data user is downloaded specific information and described file, and P2P client is certainly
Dynamic startup, and send request remotely-sensed data seed Peer list message to tracking server；
(2) tracking server communicates again with remotely-sensed data information management server, checks whether remotely-sensed data user has the right
Limit downloads this remotely-sensed data, if there being this remotely-sensed data authority of download, tracking server returns the neighbours of this remotely-sensed data at random
Node and seed list, without downloading this remotely-sensed data authority, tracking server the most directly returns null；
(3) remotely-sensed data user obtains neighbor node and the seed list of this remotely-sensed data from tracking server, arranges with seed
Peer communication in table, asks resource, it is achieved the download of remotely-sensed data, if that receive is null, illustrates not download this
The right of remotely-sensed data, then download less than data.
The most according to claim 1 a kind of based on the controllable P 2 P extensive remotely-sensed data distribution method authorized, its feature exists
Mainly it is responsible for the information of remotely-sensed data user and authority in, described remotely-sensed data information management server and processes remote sensing number
Sharing the request of data according to owner, store remotely-sensed data beyond the clouds, remotely-sensed data user is existed by remotely-sensed data management platform
Remotely-sensed data information management server fills in real information, registers new user, and remotely-sensed data system manager audits registration and uses
The verity of family information, authorizes Sharing of remote sensing data or remotely-sensed data download or Sharing of remote sensing data and the authority of download, authorizes
The remotely-sensed data user of Share Permissions is uploaded by remotely-sensed data management platform and shares real-time remotely-sensed data file, and in information
Management server keeping records, the remotely-sensed data user authorizing download permission downloads special letter by remotely-sensed data management platform
Breath describes file, when utilizing P2P client request data resource, and the download permission of information management server checking user, notice
Whether tracking server distributes remotely-sensed data seed Peer list.
A kind of based on the controllable P 2 P extensive remotely-sensed data distribution method authorized, it is special
Levying and be, described seed resource server mainly generates information according to the remotely-sensed data in high in the clouds and describes file, and information is described literary composition
Part is sent to Tracker server, and Tracker server describes the information such as the user name in file and time and does according to information
Hash change generates the special information of PassKey establishment and describes file, issues this specific information and describes file to seed resource clothes
Business device, seed resource server receives specific information and describes file, provides the download of remotely-sensed data as a permanent Seed,
Realize sharing of remotely-sensed data.
The most according to claim 1 a kind of based on the controllable P 2 P extensive remotely-sensed data distribution method authorized, its feature exists
In, all of participation node collect and add up the state of these nodes in described tracking server mainly tracking system, in order to
Find to go mutually swap file block between node, and provide the inquiry of remotely-sensed data resource information and remotely-sensed data information to describe literary composition
The download of part, remotely-sensed data demander is opened remotely-sensed data by P2P client and is described file, connects Tracker server,
By remotely-sensed data information management server, Tracker server checks whether client-side information, checking user have permission download
This remotely-sensed data, if having permission download remotely-sensed data, returns neighbor node and the seed list of remotely-sensed data the most at random, if
Not having authority, directly return null, if having permission download remotely-sensed data, client gets seed from Tracker server
List, communicates with the Peer in seed list, asks remotely-sensed data resource, and irregularly to Tracker server communication, reports
Remotely-sensed data resource downloading situation, for the safety of remotely-sensed data, in order to strengthen remotely-sensed data management platform to remotely-sensed data
The control ability of user aspect P2P client, at the report resource downloading situation of response P2P client, Tracker server
Incidentally reply customizing messages and ask resource to P2P client, control P2P client to seed list, it is achieved special P 2 P user obtain
Take less than remotely-sensed data, the safety of protection remotely-sensed data information.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610555676.6A CN106210064B (en) | 2016-07-15 | 2016-07-15 | A kind of extensive remotely-sensed data distribution method of controllable P 2 P based on authorization |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610555676.6A CN106210064B (en) | 2016-07-15 | 2016-07-15 | A kind of extensive remotely-sensed data distribution method of controllable P 2 P based on authorization |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106210064A true CN106210064A (en) | 2016-12-07 |
| CN106210064B CN106210064B (en) | 2019-09-06 |
Family
ID=57475654
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610555676.6A Expired - Fee Related CN106210064B (en) | 2016-07-15 | 2016-07-15 | A kind of extensive remotely-sensed data distribution method of controllable P 2 P based on authorization |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106210064B (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107104956A (en) * | 2017-04-13 | 2017-08-29 | 重庆市环境科学研究院 | A kind of remote sensing distribution method and system based on user's relative importance value |
| CN107404526A (en) * | 2017-07-25 | 2017-11-28 | 桂林电子科技大学 | P2P remotely-sensed data network self-adapting dissemination systems and method based on SDN |
| CN110955731A (en) * | 2019-12-13 | 2020-04-03 | 深圳先进技术研究院 | Multi-source remote sensing big data processing method and device based on Chord ring |
| CN112988816A (en) * | 2021-03-16 | 2021-06-18 | 支付宝(杭州)信息技术有限公司 | Business rule loading method, device and equipment |
| CN113114761A (en) * | 2021-04-12 | 2021-07-13 | 中共陕西省委党校 | Data sharing exchange excitation system and method based on distributed service |
| CN113220807A (en) * | 2021-04-01 | 2021-08-06 | 辽宁工程技术大学 | Automatic remote sensing data publishing and online process monitoring method |
| CN114827137A (en) * | 2022-03-28 | 2022-07-29 | 中国电子科技集团公司第五十四研究所 | Remote sensing data product on-orbit distribution method based on earth observation space cloud service |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101841558A (en) * | 2010-03-23 | 2010-09-22 | 中国科学院计算技术研究所 | Method and system for downloading resource in P2SP network |
| CN102420854A (en) * | 2011-11-14 | 2012-04-18 | 西安电子科技大学 | Distributed file system facing to cloud storage |
| CN103427998A (en) * | 2013-08-20 | 2013-12-04 | 航天恒星科技有限公司 | Internet data distribution oriented identity authentication and data encryption method |
| CN103812934A (en) * | 2014-01-28 | 2014-05-21 | 浙江大学 | Remote sensing data publishing method based on cloud storage system |
-
2016
- 2016-07-15 CN CN201610555676.6A patent/CN106210064B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101841558A (en) * | 2010-03-23 | 2010-09-22 | 中国科学院计算技术研究所 | Method and system for downloading resource in P2SP network |
| CN102420854A (en) * | 2011-11-14 | 2012-04-18 | 西安电子科技大学 | Distributed file system facing to cloud storage |
| CN103427998A (en) * | 2013-08-20 | 2013-12-04 | 航天恒星科技有限公司 | Internet data distribution oriented identity authentication and data encryption method |
| CN103812934A (en) * | 2014-01-28 | 2014-05-21 | 浙江大学 | Remote sensing data publishing method based on cloud storage system |
Non-Patent Citations (1)
| Title |
|---|
| 胥世民，冯钧，唐志贤: "基于P2P技术的遥感数据分发策略研究", 《计算机与数字工程》 * |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107104956A (en) * | 2017-04-13 | 2017-08-29 | 重庆市环境科学研究院 | A kind of remote sensing distribution method and system based on user's relative importance value |
| CN107104956B (en) * | 2017-04-13 | 2019-07-26 | 重庆市环境科学研究院 | A kind of remote sensing distribution method and system based on user's priority |
| CN107404526A (en) * | 2017-07-25 | 2017-11-28 | 桂林电子科技大学 | P2P remotely-sensed data network self-adapting dissemination systems and method based on SDN |
| CN110955731A (en) * | 2019-12-13 | 2020-04-03 | 深圳先进技术研究院 | Multi-source remote sensing big data processing method and device based on Chord ring |
| CN112988816A (en) * | 2021-03-16 | 2021-06-18 | 支付宝(杭州)信息技术有限公司 | Business rule loading method, device and equipment |
| CN113220807A (en) * | 2021-04-01 | 2021-08-06 | 辽宁工程技术大学 | Automatic remote sensing data publishing and online process monitoring method |
| CN113114761A (en) * | 2021-04-12 | 2021-07-13 | 中共陕西省委党校 | Data sharing exchange excitation system and method based on distributed service |
| CN113114761B (en) * | 2021-04-12 | 2022-09-20 | 中共陕西省委党校 | Data sharing exchange excitation system and method based on distributed service |
| CN114827137A (en) * | 2022-03-28 | 2022-07-29 | 中国电子科技集团公司第五十四研究所 | Remote sensing data product on-orbit distribution method based on earth observation space cloud service |
| CN114827137B (en) * | 2022-03-28 | 2024-04-30 | 中国电子科技集团公司第五十四研究所 | Remote sensing data product on-orbit distribution method based on earth observation space cloud service |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106210064B (en) | 2019-09-06 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106210064A (en) | A kind of based on the controllable P 2 P extensive remotely-sensed data distribution method authorized | |
| CN112104517B (en) | Data processing method based on block chain network and related device | |
| CN110868439B (en) | Block chain system | |
| CN105074702B (en) | The Database Systems of single tenant and multi-tenant environment are provided | |
| CN108494581A (en) | The controller distributed information log generation method and device of SDN network | |
| CN109688199B (en) | Multi-domain layered Internet of things alliance chain platform, fragmentation method thereof and computer | |
| CN109040014A (en) | Block chain processing method and processing device, block chain node and storage medium | |
| CN109491758A (en) | Docker mirror image distribution method, system, data gateway and computer readable storage medium | |
| CN110855760A (en) | Block chain-based distributed secure storage system deployment method | |
| CN104601680B (en) | A kind of method for managing resource and device | |
| CN112835977B (en) | Database management method and system based on block chain | |
| CN105959347B (en) | A kind of digital collaborative simulation system communication means based on P2P network | |
| CN101019105A (en) | Method and apparatus for data storage using striping | |
| Cañas et al. | Publish/subscribe network designs for multiplayer games | |
| CN110839056A (en) | Data processing method and device based on block chain and node network | |
| CN109858272A (en) | Blacklist data processing system based on block chain | |
| CN112187866B (en) | Novel block chain consensus method based on shared storage | |
| CN112468537A (en) | Block chain network building structure based on local area network environment and data processing method | |
| CN110324406A (en) | A kind of method and cloud service system obtaining business datum | |
| CN116595094A (en) | Federal learning incentive method, device, equipment and storage medium based on block chain | |
| CN116204923A (en) | Data management and data query methods and devices | |
| Hassanzadeh-Nazarabadi et al. | Dht-based communications survey: architectures and use cases | |
| Levin et al. | Fair File Swarming with FOX. | |
| CN101741867B (en) | Method for capturing node information in BitTorrent network | |
| CN105516343B (en) | A kind of file-sharing implementation method of network dynamic self-organizing |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190906 |