WO2008113296A1 - Procédé, dispositif et système pour distribuer des fichiers - Google Patents

Procédé, dispositif et système pour distribuer des fichiers Download PDF

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Publication number
WO2008113296A1
WO2008113296A1 PCT/CN2008/070524 CN2008070524W WO2008113296A1 WO 2008113296 A1 WO2008113296 A1 WO 2008113296A1 CN 2008070524 W CN2008070524 W CN 2008070524W WO 2008113296 A1 WO2008113296 A1 WO 2008113296A1
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WO
WIPO (PCT)
Prior art keywords
file
unit
email address
sending
segment
Prior art date
Application number
PCT/CN2008/070524
Other languages
English (en)
Chinese (zh)
Inventor
Binglin Liu
Yong Cheng
Original Assignee
Chongqing Yeahto Information Technology Co., Ltd.
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Chongqing Yeahto Information Technology Co., Ltd. filed Critical Chongqing Yeahto Information Technology Co., Ltd.
Publication of WO2008113296A1 publication Critical patent/WO2008113296A1/fr

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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
    • H04L51/00—User-to-user messaging in packet-switching networks, transmitted according to store-and-forward or real-time protocols, e.g. e-mail
    • H04L51/04—Real-time or near real-time messaging, e.g. instant messaging [IM]

Definitions

  • the present invention relates to the field of file transmission, and more particularly to a method, apparatus and system for combining mail technology and instant messaging technology for transferring files.
  • Figure 1 is a schematic diagram of a widely used principle for transferring files using Email.
  • the user 11 sends a file to the user 14, first, the user 11 uploads the file to be sent to the outgoing mail server 12 (eg, SMTP) used by the user; then, the sending mail server 12 forwards the file and mail information to the user.
  • the receiving mail server 13 e.g., POP3 14; Finally, the file 14 is downloaded from the receiving mail server 13 by the user 14 to complete the file transfer.
  • the user cannot receive the mail normally due to the transmission failure, such as a network communication failure, an abnormality of the receiving mail server, etc., because in the prior art, the user cannot know the abnormal situation in time, and thus cannot Respond to the exception in a timely manner.
  • the user 14 can only be in a waiting state before the process of transmitting the file to the receiving mail server 13 by the mail server 12.
  • the user 14 must periodically check with the server for new mail, and the receiving process can be started after the sending process is completely finished.
  • a large number of invalid query requests not only occupy the user computer and network resources, but also Increased the load on the mail server and reduced its processing performance.
  • the object of the present invention is to solve the problem that the receiving end cannot know the transmission status of the file in time when the file is transmitted by using the mail in the prior art, and further, the problem that the transmission abnormality cannot be timely and the file cannot be obtained in time can be obtained.
  • the present invention discloses a file transmission method, comprising the steps of: determining a destination email address for transmitting a target file; and transmitting the target file to the destination email address; Sending an instant message to the receiving end by using an instant message, the instant message includes a control instruction for receiving the target file; if the receiving end receives the instant message including the control instruction, obtaining a corresponding target file from the destination email address .
  • the sending the target file to the destination email address comprises: dividing the target file into a plurality of file segments according to a preset rule; sending the file segment to the destination email address; and the receiving end is from the destination
  • the mail address obtaining target file includes: determining whether an instant message including the control instruction is received, and if received, obtaining a file segment from the destination email address; and combining the obtained file segments into a target file.
  • the instant message sent by the instant messaging to the receiving end is performed after the one or more file segments are sent to the destination email address.
  • the file transmission method may further include: sending, by using an instant messaging, the file segment as an instant message to the receiving end; the receiving end acquiring the file segment from the instant message; the receiving end obtaining the segment and the File segmentation obtained in instant messaging.
  • the sending the file segment as an instant message to the receiving end comprises: determining a current transmission rate of the instant messaging, and if the value is greater than a predetermined threshold, sending the file segment as an instant message to the receiving end.
  • the method before sending the file segment to the destination email address, the method further includes: determining a starting email address; and sending the file segment to the destination email address by using the starting email address to segment the file Send to the destination email address.
  • the starting email address and/or the destination email address are obtained by using instant messaging.
  • the instant message sent to the receiving end further includes a destination email address where the file segment is located; and the destination email address used by the receiving end to obtain the file segment is obtained from the instant message.
  • the starting email address and/or the destination email address are selected according to a predetermined rule from a preset email address list.
  • the number of the starting email addresses is multiple; the sending the file segment to the destination email address by using the starting email address is implemented by: segmenting the plurality of files by different starting The email address is concurrently transmitted to the destination email address.
  • the number of the destination email addresses is multiple, and the sending the file segments to the destination email address is implemented by: segmenting the plurality of files by using the initial email address and transmitting the corresponding email addresses to the corresponding multiple addresses. Destination email address.
  • the file transfer method may further include:: the multiple start email addresses and/or Or the destination email address is set to the preferred level according to the transmission speed; the file segment is sent by selecting the starting email address and/or the destination email address with a higher priority.
  • the file transmission method may further include: the receiving end verifies the obtained file segment and/or the merged target file, and if the verification fails, sending an instant message of the transmission failure to the sending end, the instant The message includes control instructions for resending the file segment and/or the object file; if the sender receives the control command, resending the corresponding file segment or object file.
  • a file transmission apparatus including a transmitting module and a receiving module located in different computing devices.
  • the sending module includes: a first instant messaging unit, configured to send and/or receive an instant message; a destination email address determining unit, configured to determine a destination email address of the sending target file; and an object file sending unit, configured to send the target file And the destination email address; the sending control unit is configured to control the target file sending unit to send the target file, and notify the first instant messaging unit to send the instant message, where the instant message includes a control instruction for receiving the target file;
  • the receiving module includes: a second instant messaging unit, configured to send and/or receive an instant message; an object file obtaining unit, configured to acquire a target file from the destination email address; and an acquiring control unit, configured to determine whether the second instant messaging unit is An instant message containing the control command of the receiving target file is received, and if received, the target file obtaining unit is notified to acquire the target file.
  • the target file sending unit further includes: a file dividing unit, configured to divide the target file into a plurality of file segments according to a preset rule; and a file segment sending unit, configured to distribute the file to the destination email address;
  • the sending control unit further includes: a file segment sending control unit, configured to control the file segment sending unit to send the file segment, and notify the first instant messaging unit to send an instant message, where the instant message includes a file segment for receiving the file segment Control instruction;
  • the target file obtaining unit further includes: a file segment obtaining unit, configured to obtain a file segment from the destination email address; and a file segment combining unit configured to combine the obtained file segments into the target file;
  • the obtaining control unit further includes: a file segment obtaining control unit, configured to determine whether the second instant messaging unit receives the instant message including the received file segmentation control instruction, and if received, the notification file segment obtaining unit acquires the file Segmentation.
  • the file segmentation sending control unit notifies the first instant messaging unit to send the instant message after the file segment sending unit sends one or more file segments to the destination email address. get on.
  • the target file sending unit further includes an instant file sending unit, configured to send an instant message including the file segment by using the first instant messaging unit;
  • the target file acquiring unit further includes an instant file receiving unit, configured to The file segment acquired by the instant message segment segment obtaining unit including the file segment received by the instant messaging unit and the file segment obtained by the instant file receiving unit.
  • the target file sending unit further includes: a rate comparing unit, configured to compare a transmission rate of the current first instant messaging unit, and if the value is greater than a predetermined threshold, notify the immediate file sending unit to send the file segment.
  • a rate comparing unit configured to compare a transmission rate of the current first instant messaging unit, and if the value is greater than a predetermined threshold, notify the immediate file sending unit to send the file segment.
  • the sending module further includes a start email address determining unit, configured to determine a starting email address.
  • the destination email address determining unit obtains the destination email address by using the instant message of the first instant messaging unit, and the starting email determining unit obtains the starting email address by using the instant message of the second instant messaging unit.
  • the instant message sent by the first instant messaging unit further includes the destination email address information of the file segment; the destination email address used by the file segment obtaining unit to obtain the file segment is from the instant message. Obtain.
  • the device may further include: a storage unit, configured to store a preset email address list; the destination address determining unit further includes a destination email address selection unit, configured to use the email address list of the storage unit according to a predetermined rule Selecting a destination email address; the initial email address determining unit further includes a starting email address selecting unit for selecting a starting email address from a list of email addresses of the storage unit according to a predetermined rule.
  • a storage unit configured to store a preset email address list
  • the destination address determining unit further includes a destination email address selection unit, configured to use the email address list of the storage unit according to a predetermined rule Selecting a destination email address
  • the initial email address determining unit further includes a starting email address selecting unit for selecting a starting email address from a list of email addresses of the storage unit according to a predetermined rule.
  • the sending control unit further includes: a first concurrency control unit, configured to control the file segment sending unit to concurrently transmit the plurality of file segments to the destination e-mail address through different initiating e-mail addresses.
  • a first concurrency control unit configured to control the file segment sending unit to concurrently transmit the plurality of file segments to the destination e-mail address through different initiating e-mail addresses.
  • the sending control unit further includes: a second concurrency control unit, configured to control the file segment sending unit to concurrently transmit the plurality of file segments to the plurality of destination e-mail addresses through different starting e-mail addresses.
  • a second concurrency control unit configured to control the file segment sending unit to concurrently transmit the plurality of file segments to the plurality of destination e-mail addresses through different starting e-mail addresses.
  • the sending module further includes a mail address preference unit, configured to set a priority according to a transmission speed of the start email address and/or the destination email address; and the file segment sending unit according to the mail The high priority mail address selected by the piece address preference unit sends a file segment.
  • a mail address preference unit configured to set a priority according to a transmission speed of the start email address and/or the destination email address
  • the receiving module further includes a checking unit, configured to check the received file segment or the merged target file, and if the verification fails, send an instant message of the failed transmission through the second instant messaging unit;
  • the control unit further includes a retransmission control unit, configured to determine whether the first instant messaging unit receives the instant message of the transmission failure, and if received, notify the file segment sending unit to send the corresponding file segment.
  • the invention also discloses a file transfer system using the device of claim 14, comprising: a mail server, an instant message server, a start client and a destination client,
  • the initial client includes an initial sending module, where the initial sending module includes: a first instant messaging unit, configured to send and/or receive an instant message; a destination email address determining unit, configured to determine a destination email for sending the target file An address file sending unit, configured to send the target file to the destination email address, a sending control unit, configured to control the target file sending unit to send the target file, and notify the first instant messaging unit to send the instant message, the instant message Including a control instruction for receiving an object file;
  • the destination client includes a destination receiving module, where the destination receiving module includes: a second instant messaging unit, configured to send and/or receive an instant message; an object file obtaining unit, configured to acquire a target file from the destination email address; And determining, by the second instant messaging unit, an instant message that includes the control instruction, and if received, notifying the target file obtaining unit to acquire the target file.
  • the destination receiving module includes: a second instant messaging unit, configured to send and/or receive an instant message; an object file obtaining unit, configured to acquire a target file from the destination email address; And determining, by the second instant messaging unit, an instant message that includes the control instruction, and if received, notifying the target file obtaining unit to acquire the target file.
  • the present invention has the following advantages:
  • the invention sends a control instruction for receiving a file to the receiving end by using instant messaging while sending the file by using the instant mail, and the receiving end can acquire the file in time after the file transfer is completed. Since the instant messaging control command or notification message is used, the receiving end can know the transmission status of the file at any time. For example, if the receiving end receives the instant message that the file has been sent, if the receiving end has not received the mail after the predetermined delay period expires, the mail transmission process may be considered abnormal, and the abnormal information may be timely communicated through instant messaging. Feedback to the sender, the sender can also respond and process accordingly, ensuring the reliability of file transfer.
  • the receiving end initiates the receiving process according to the received instant message notification, which avoids the waste waiting time in the prior art when the receiving end does not know when the mail is delivered, and does not need the receiving end to continuously try before the mail can be received.
  • the connection with the mail server effectively reduces the burden of unnecessary network communication.
  • the present invention divides the file to be sent into multiple file segments, and after sending a file segment to the email address, sends an instant message to the file receiving end to receive the file segment, thereby realizing file sending and receiving. Synchronization processing, can only start receiving after the traditional entire file is sent. Compared with the mail transmission scheme, the delay between transmission and delivery is small, and the total transmission time is significantly shortened.
  • user a sends a 10M file to user b.
  • user a's sending email address is a@serverl.com
  • user b's receiving email address is b@server2.com, sending and receiving data.
  • the speed is 1M/1 minute
  • the forwarding delay between server1 and server2 is fixed at 1 minute.
  • user a sends 10 minutes to serverl.com through the email account. After one minute delay, user b's email account.
  • the reception can be started. After 10 minutes, the whole transmission process takes 21 minutes. If the mail receiving end is not received in time, the total transmission process will take longer.
  • the file is divided into 10 segments for transmission, and each time a segment is transmitted, the b is notified to start receiving. It is assumed that only one segment can be transmitted at the same time by using the same account (many mail servers limit the same user to multiple servers simultaneously) Connection), then it takes 1 minute to transfer the first segment. After one minute delay, b can start receiving. After 1 minute, the reception is completed.
  • the transmission time of completing 1 segment of the file is 3 minutes, and a is sent after the first segment is sent. Then send the second paragraph, similarly, after 1 minute delay, b starts to receive the second segment, and so on until the last segment is sent and received.
  • the time taken after the accepted file combination process can be ignored, the total time is In 12 minutes, it is 80% more efficient than traditional technology.
  • a uses multiple accounts to transfer files to b at the same time (assuming that the transfer speed of each account is equal and only limited by the bandwidth allocated by the mail server and not limited by the bandwidth of the connection between the user's computer and its network service provider), for example
  • Each segment is transmitted with one account, and the file divided into 10 segments can be completely transferred within 1 minute. After 1 minute delay, b can start receiving.
  • a well-known point-to-point (P2P) transmission technology such as BT, requires high-speed file transfer.
  • a prerequisite is that there are multiple copies (all or part of the same) of the same resource on the network, and the more computers it distributes, the achievable transmission.
  • the faster the speed it is well known that this technology has a large number of trial connections and the effective speed of each connection is much larger than the bandwidth occupied by it.
  • the network communication bandwidth resource waste is Very serious, has begun to be limited by many operators; and existing instant messaging technology to achieve high-speed file transfer, the need to further expand the bandwidth available for client connections, which means increased investment.
  • the invention fully utilizes the user's existing mailbox resources and instant communication tools, and realizes high-speed transmission of files with almost no additional cost. More reliable.
  • the sending end After the sending end completes the sending of a file segment, it checks whether the file segment transmission is successful according to the instant message fed back by the receiving end, and if it fails, resends the file segment, thereby avoiding the process of using the mail to transfer the file in the prior art. If the transmission failure occurs in any part of the file transmission process, the entire file must be resent, which improves the reliability of file transmission and reduces the cost and resources required to handle file transmission abnormalities. In addition, the file is sent by mail. At the same time of segmentation, the file segment can be sent by sending an instant message, and the file segmentation failure of the mail transmission can be immediately remedied, further ensuring the reliability of the file transmission.
  • FIG. 1 is a schematic diagram of a principle of transmitting a file by using an email in the prior art
  • Figure 2 is a flow chart showing the steps of Embodiment 2 of the file transfer method based on the present invention
  • FIG. 3a and 3b are flowcharts showing the steps of Embodiment 4 of the file transmission method of the present invention.
  • FIG. 4 is a structural block diagram of an embodiment of a file transmission apparatus according to the present invention.
  • Figure 5 is a block diagram showing the system configuration of an embodiment of the file transfer system according to the present invention.
  • the instant messaging referred to in the present invention includes technologies such as Microsoft MSN, Windows Live Messenger, Tencent QQ, Yahoo Messenger, etc., which enable people to identify online users and exchange messages with them in real time, and also to complete specialization among users.
  • a system for real-time information exchange the system includes at least one server and a plurality of clients, and the client and the server maintain a connection, and each client can establish a direct connection, a mutual message, or a real-time forwarding through a server through scheduling of the server. Other clients send messages.
  • the instant message according to the present invention refers to real-time interaction content between each client and the client and the server, including information displayed to the client of the client in a plain-readable form, and also includes between clients and clients.
  • Some control commands transmitted between the server and the server, the control commands include action instructions, state feedback information, parameters required to execute the action instructions, and may also include various file transfer states, such as the total number of segments of the file, file segmentation Checksum, whether all file segments have been transferred, etc., this information can coordinate the actions of the receiving end and the sending end, and is often invisible to the user.
  • the receiving end receives the instant message including the control instruction
  • the destination mail related information such as the destination email address and its login account information, file segmentation parameter, and file
  • Verify the data, etc. so that the target file can be successfully obtained from the destination email address, and Now the user is greatly facilitated by the user, and the efficiency of text transmission is improved.
  • sending a file by the initial mail address means that the file sending operation is performed after logging in to the mail server corresponding to the initial mail address by using the login account corresponding to the initial mail address, which is described in the present invention.
  • Obtaining the file "or" from the mail address to obtain the mail” means that the mailing account corresponding to the mail address is used to log in to the corresponding mail server and then perform the receiving operation.
  • Embodiment 1 of the present invention discloses a file transmission method, including: determining a destination email address for transmitting a target file; transmitting an object file to be transmitted to the destination email address, and then transmitting an instant message to the receiving end by using an instant messaging
  • the instant message includes a control instruction for receiving the target file; if the receiving end receives the control instruction, the target file is obtained from the destination email address.
  • the transmitting and receiving sides of the file establish a communication connection using a communication terminal having both an instant messaging function and a mail transmitting and receiving function.
  • the destination email address is the email address used by the receiving end to obtain the target file, which may be the sender's address, or the recipient's or third party email address. For example, if the sender's email address is selected as the destination email address, the sender only needs to transfer the target file to the server where the email address is located, and the receiving end directly uses the login account corresponding to the sender's email address to log in to the email address.
  • the mail server obtains the target file, and since the process of transferring the mail between different mail servers is omitted, the time taken for the file segment to be sent from the transmission to the reception is reduced, and the time taken for the entire file transfer is also greatly reduced.
  • the target file can be sent to the destination email address as part of the email in a standard email format that can be downloaded directly through a common protocol.
  • the object file may be stored in a predetermined format at any position in the storage space to which the destination email address belongs, for example, in a draft format, as long as the receiving end can obtain the mail content from the destination email address in accordance with the predetermined format.
  • the essence is to transfer the target file locally from the user's client to the mail server, and then download the target file from the server to the receiving end without forwarding between the mail servers.
  • the destination email address and account information may be stored locally on the sender and/or the recipient's communication terminal, or may be stored on the server as a user profile, such as an instant messaging server. In this way, the transmitting and receiving parties can conveniently obtain the available shared email address and its account information from the local or the network for file transmission, thereby improving the efficiency of using the email account, and the encryption and authorization can be implemented through specific implementation.
  • the form of power increases security.
  • the stored email address and the account information corresponding to each user may be one or more. If there are multiple, the email address list may be established and stored, and the email address list is sent when the file is sent. Select the desired email address as the destination email address for this transfer.
  • the receiving party obtains the email account information by using instant messaging: For example, if the email address of the receiving end is used as the destination email address when transmitting the file, the communication terminal used by the receiving terminal selects an email address from the list of locally stored email addresses. The instant messaging is sent to the sending end in a certain format, and the sending end automatically sets it as the destination email address after receiving the information.
  • the information transmitted by using the instant messaging may be encrypted.
  • the transmission speed information corresponding to each destination mail address can be simultaneously stored.
  • the transmission speed information may be set in advance or may be recorded and set during previous transmissions. In this way, the priority can be set according to the transmission speed of the email address, and then the address with the higher priority is selected as the destination email address used for the transmission.
  • the target file is first divided into a plurality of file segments according to a preset rule, and then the file segment is sent to the file segment.
  • the destination email address, and the instant messaging is used to send an instant message containing the instruction for receiving the file segmentation control to the receiving end; if the receiving terminal receives the control command, the file segment is obtained from the destination email address, and the file segment is merged into Target file.
  • Step 201 The target file to be sent is divided into a plurality of file segments according to a preset rule.
  • the size of the file segment can be set according to preset rules. For example, it can be set to 500k or 700k bytes. For files smaller than this set size, you can directly Sending files larger than this setting can be divided into multiple file segments first. Each file segment may need to be attached with some additional information (such as the total number of file segments, the serial number of the segment, etc.); It can also be selected according to the effective capacity of the destination email address. For example, it can be set to 1/10 of the effective capacity of the mailbox, or 1/5 of the remaining space, etc., so as to prevent the transmission failure due to insufficient remaining space of the mailbox.
  • Step 202 Determine a destination email address to be used for the file transfer.
  • step 203 a file segment is sent as an email to the destination email address.
  • the file segmentation In the process of transmitting a file segmentation to a destination email address, it is a preferred method of the present invention to send the file segment as a mail to the destination email address.
  • the file segmentation can also be sent to the destination email address in a predetermined format as described in Embodiment 1.
  • the file segment When sent, the file segment can be sent as an attachment or body of the message.
  • the order in which the file segments are sent may be sent according to the sequence number of the file segment, or may not be sent in the order of the sequence numbers. Whether the transmission according to the serial number does not affect the reception of the receiving end, the receiving end can judge the serial number of the received segment according to the mail or the file segment and the instant message mentioned below, and after all the file segments are received, the assembly is completed. Merge files.
  • Step 204 Send an instant message to the receiving end, where the instant message includes a control instruction for receiving the file segment.
  • the instant message sent to the receiving end includes a control instruction for receiving the file segment, the control instruction can be set according to a format agreed by both parties, and the execution of the control instruction can be completely completed inside the computer without being displayed to the user or The user's participation is required. Of course, if necessary, the execution of the instructions can also be integrated into the user's interaction, such as the confirmation of the user.
  • the instant message may further include the total number of segments of the file segment, the identification information of each file segment, the destination email address information of the file segment, and the like, and the email address information may only be as needed. Including the email address, and may also include account information of the email address, such as a mail server, a login user name, a password, etc. Similarly, the information of the normal reorganization of the help file segments may be attached to a specific part of the mail for transmission: for example, attached The subject, body, attachments, etc. are optional.
  • the destination mail address information needs to be sent to the receiving end in an instant message can be determined by a person skilled in the art at the time of implementing the present invention, and the present invention is not limited thereto.
  • the sender's email address is used as the destination email address
  • the destination email address information can be included in the instant message so that the receiver can know where to receive it, and the receiver can successfully log in to the mail server to complete the email reception.
  • the destination email address information should include corresponding login account information.
  • each file segment is sent to the same destination email address, the information can only be sent once; if each file segment may use a different destination email address, it can be sent to the receiving party each time. Contains the destination email address information.
  • the receiving parties have established a trust relationship, the agreed email address can be selected according to the predetermined principle, so that the destination email address information does not need to be sent.
  • the file segment can be encrypted and sent to improve security during transmission.
  • Step 205 The receiving end receives the instant message, and obtains the file from the destination email address. Paragraph.
  • the file segmentation from the destination email address may be processed according to a preset rule, such as specifying that the file segment is located in the body of the email or the email attachment, and the sender may also attach a rule for extracting the file segment in the sent instant message. .
  • a preset rule such as specifying that the file segment is located in the body of the email or the email attachment
  • the sender may also attach a rule for extracting the file segment in the sent instant message. .
  • to get a file segment from the destination email address follow these steps: First, download the message from the destination email address to the local, and then extract the corresponding file segment from the message or attachment.
  • Step 206 steps 203 through 205 are repeated until all file segments are sent and retrieved.
  • Step 207 Combine the received file segments into a target file. For example, the resulting file segments are combined into a target file based on their identification information.
  • determining the destination email address can be done either before splitting the file or after splitting the file.
  • Embodiment 3 of the file transfer method of the present invention a start mail address used for transmitting a file is first determined, and then the file segment is transmitted to the destination mail address using the start mail address.
  • the sender only needs to know the address name of the destination email address, but does not need to understand
  • the two parties do not need to exchange the login account information of each other. Therefore, the security and privacy of the addresses of the two parties are ensured under the premise of using the respective addresses.
  • the instant access may be used to obtain or obtain the information according to the first embodiment.
  • select the starting email address For related content, refer to the above embodiment, and details are not described herein.
  • Embodiment 4 of the file transfer method of the present invention a plurality of mail addresses are selected as the start mail address.
  • the concurrent transmission can make the most use of the user's local and network bandwidth resources, so that the time to send the file segmentation to the destination email address will be significantly reduced, which further reduces the time spent on the entire file transfer and improves the file transfer. Immediacy.
  • the concurrent transmission can adopt multiple processes Transmissions can also be multi-threaded or other concurrent transmissions. Hereinafter, the embodiment will be described by taking multithreading as an example and referring to FIG. 3a.
  • Step 301 Split the target file to be sent into multiple file segments.
  • Step 302 Determine the starting email address to be used for this file transfer.
  • Step 303 Determine the destination email address to be used for this file transfer.
  • Step 304 Start a thread.
  • Step 305 Use the thread to select a file segment that has not been sent, and use a starting email address to segment the file to the destination email address.
  • Step 306 Repeat step 304 until the predetermined number of threads is started.
  • Step 307 Determine the transmission status of the thread. If the transmission process of a thread has ended, go to step 308.
  • Step 308 Send an instant message to the receiving end, the instant message containing a control instruction for receiving the file segment.
  • Step 309 Determine whether all file segments have been sent. If not, go to step 305.
  • the above method of transmitting file segments by using multiple threads is only a preferred implementation manner, and can also be implemented as follows:
  • a) Start multiple threads according to predetermined rules.
  • the number of threads can be set according to certain rules, such as network environment and device performance.
  • Each thread uses a starting email address to transfer a file segment to the destination email address. After the transfer is complete, the thread still selects other file segments to continue the transmission without having to restart the new thread.
  • Step 3101 Determine whether a new instant message including the received file segmentation control instruction is received, and if yes, perform step 3092.
  • Step 3102 Obtain a file segment corresponding to the control instruction from the destination email address.
  • Step 3103 Whether all file segments are obtained. If step 3101 is not performed, step 3104 is performed.
  • Step 3104 Combine the obtained file segments into a target file.
  • the fourth embodiment of the present invention is based on the file transfer method.
  • the main difference between the fifth embodiment of the present invention and the fourth embodiment is that the destination mail address is plural.
  • each destination email address corresponds to one or more starter addresses.
  • the file is segmented through the starting message The address is sent to the corresponding destination email address; correspondingly, the receiving end obtains the file segment from different destination email addresses and combines them into the target file.
  • the pressure of the mail server where the destination email address is located is also dispersed.
  • the file segmentation from the same destination email address is avoided.
  • the resulting load further improves the efficiency of the file segmentation at the receiving end and improves the speed of the entire file transfer.
  • Embodiment 4 please refer to the above embodiment, which is not mentioned here.
  • sending an instant message containing a control command to the receiving end may be performed after a file segment is sent to the destination email address; of course, multiple file segments may also be sent to the file segment. After the destination email address, the instant message is sent. The difference between the two is that if the latter is selected, the instant message should contain a control instruction to receive the plurality of file segments. Which transmission method is selected can be determined by those skilled in the art in the practice of the present invention.
  • the checksum information of the file segment can also be calculated and added to the sent mail.
  • the receiving end verifies the received file segment or the merged target file, and if the verification fails, sends an instant message of the failed transmission to the sender; if the sender receives the instant message, resends the corresponding file segment.
  • the checksum data of the file segment is obtained according to a certain checksum algorithm, and the checksum data and the file segmentation data packet are sent as an email, or the checksum data is used as an instant message. Send to the receiving end. In doing so, it is possible to avoid data transmission errors caused by network transmission and the like during mail transmission. For example, after receiving the file segmentation, the receiving end determines whether the file segmentation is in error according to the checksum data. If the error occurs, the verification data fails. At this time, the receiving end may send an instant message to the sender, requesting resending the file segment that is in error. segment. In addition, the receiving end can also receive the erroneous mail from the mail address again, and re-verify the file segmentation.
  • the received mail in the mail address is deleted, and if the mail is re-received from the mail address more than once
  • the preset number of times for example 5 or 10 times, requires the sender to resend the corresponding message.
  • the advantage of using this step is that when it is found that there is a file segmentation data error, it is only necessary to resend or obtain the file segment in which the error occurred. In the prior art, if the file transmission error occurs, the entire target file needs to be retransmitted. The problem, saving costs and resources.
  • the checksum data may be added to the entire target file, or the checksum data of the target file may be sent when the last file segment is sent, and the target file is merged at the receiving end, and then the entire file is verified. , to determine whether there is an error, this can avoid errors caused by file splitting and merging. If the receiver finds a checksum error, it can send an instant message to the sender requesting that the corresponding file segment be resent.
  • sending all file segments as a mail to the receiving end is only a preferred method of the present invention, and optionally, part of the file segment is sent as an instant message to the receiving. For example, the transmission rate of the instant messaging is determined.
  • the file segment is sent to the receiving end by using instant messaging.
  • the two can be optimally combined to improve the speed of file transmission.
  • the file segment can be sent by using an instant message, so that the transmission interruption caused by the abnormality of the mail transmission can be avoided, and the whole file transfer process becomes more reliable.
  • the receiving end also needs to obtain the file segment from the instant message, and merge the file segments obtained from the destination email address into the target file.
  • the file transfer method of the present invention has been described above.
  • the file transfer method of the present invention will be further described in detail from the perspective of user use in conjunction with a specific application environment.
  • Embodiment 6 is a description of a specific application embodiment of a file transmission method based on the present invention, in this embodiment,
  • User A needs to send file F to user B.
  • User A has two email addresses sl@maill.com and s2@mail2.com provided by mail server Sa; user B has two email addresses provided by mail server Sb: Rl@mail3.com, r2@mail4.com.
  • User A and User B establish a communication connection using a communication terminal having instant messaging and mail transceiving functions, and use instant messaging server Sc to implement instant messaging.
  • an email address sl@maill.com of user A is used as the destination email address, and user A directly transfers the file segment from the local to the destination email address sl@maill.com, and transmits the file segment to the destination email address.
  • user A can choose to use sl@maill.com as the sending address to segment the file as part of the mail, and send it to sl@maill.com in a standard mail format that can be directly downloaded through the general protocol.
  • the file segment can be stored in a specific format to any location in the storage space to which sl@maill.com belongs, as long as User B can obtain the mail content from sl@maill.com according to the predetermined format.
  • the specific implementation manner of this embodiment is as follows:
  • Step 401 First, user A initiates a file sending process, user A selects a file, selects receiving user B, and then issues a command to start transmission, and the instant messaging terminal (hereinafter referred to as sender A) where user A is located automatically sends the message to the user through the instant message.
  • the instant messaging terminal used by B (hereinafter referred to as the receiving end B) sends some basic information of the current transmission, such as the file name to be transmitted, the file size, and the check value used to verify the file.
  • step 402 it is determined whether the user B confirms the reception. If yes, step 403 is performed, and if not, the transmission is stopped.
  • Step 403 After confirming the reception, the user B sets the destination email address used by the sender and the receiver.
  • a list of mail addresses for User A and User B and their respective mail addresses can be established in advance in the instant messaging server.
  • the instant message server selects a high priority email address as the destination email address for the two users from the stored email address list, and notifies the receiving party of the address information or the receiving party itself Obtained on the message server.
  • the format of the list of email addresses is as follows:
  • the address information disclosed by Sl@maill.com to the server includes the mail address and the login authority information, and S2@mail2.com only discloses the independent address, and there is no account information, indicating The former can authorize specific users for mailing, while the latter is only used for self-receiving.
  • the format and content of the mail address list are only for convenience of explaining the implementation process of the embodiment, and those skilled in the art can implement various factors to manage the user's mail address information when implementing the present invention.
  • the setting of the email address priority can be considered in combination with the location of the user and the location of the mail server. For example, if the user uses Beijing Telecom's email address as the destination email address in Beijing to send the user in Chongqing, the speed is faster, but if the user still uses the Beijing Telecom email account as the destination email address in Chongqing, the sending speed will be It will be slower, so the email address priority setting can be set according to various factors such as the user's location and the location of the mail server. For the user whose public address information can be used as the starting or destination email address, the user can set the trusted friend list list to be filtered by the system.
  • the mail address list can also be stored locally on the user terminal. For example, after user B confirms the transmission, an e-mail address is selected from the list of e-mail addresses stored in the receiving end B or the computer, and then transmitted to the sending end A by means of instant messaging; the sending end A receives the instant. After the message is decrypted and extracted, the email address is automatically set to the destination email address.
  • Step 404 the sender A divides the file F into a plurality of file segments.
  • Step 405 Take the i-th file segment, where the value of i ranges from 1 to the total number of file segments.
  • Step 406 Calculate a content check value of the file segment i.
  • Step 407 The content check value of the file segment i is used as a part of the mail, and the content of the file segment i is sent as an attachment or mail content to the selected destination mail address Sl@maill.com.
  • Step 408 Send an instant message to the receiving end B, where the instant message includes a control instruction for receiving the segment i.
  • the destination email address information may be included in the instant message sent to the receiving end B.
  • Step 409 Count the sending speed of the mail in the current time period, and update the statistical result.
  • the statistics will eventually be updated to the email address list.
  • the purpose of saving statistics is to select the fastest address to send when there are multiple addresses to choose from.
  • step 410 step 405 is repeated until all the blocks are sent.
  • Step 411 Determine whether an instant message containing the control command of the received file segment i is received, and if the following steps are received.
  • Step 412 Obtain the destination email address information from the instant message.
  • the address information of the destination email address sl@maill.com is obtained from the instant message, including: receiving server, sending server, login user name, login password, and the like.
  • This step is an optional step.
  • the sending and receiving parties have established rules to correctly know the destination email address used in this sending operation, such as being recorded in the friend information, obtained from the instant messaging server, and before the destination email address is transmitted.
  • This step is not necessarily performed by the receiving end B automatically providing it to the transmitting end A and making a record or the like.
  • Step 413 The receiving end B downloads the mail from the destination email address sl@maill.com. If the download fails, wait for a certain period of time and then re-download. If the download cannot be successful after repeating a certain number of times, notify user A to resend file segment i.
  • Step 414 After successfully downloading the mail, send a notification to the sender A.
  • Step 415 Extract the file segment i from the mail and verify the file segmentation.
  • the data of the file segment i and the checksum data are obtained from the mail, and then the check value of the content of the downloaded file block i is calculated according to a predetermined algorithm, and compared with the received checksum data, if the same, it indicates Block i received successfully. Otherwise, the content of the file segment i is re-downloaded from the destination email address, and if it is not successful after repeating the specified number of times, the sender A is notified to resend the file segment i.
  • Step 416 Determine whether all the file segments are received. If yes, go to step 417.
  • Step 417 Combine all the file segments into the target file according to a predetermined algorithm.
  • the file segmentation is merged using an algorithm corresponding to file segmentation.
  • Step 418 Verify the merged target file. If it fails, send a notification message to the sender A to resend the file.
  • Step 419 Count the receiving speed of the current time period mail, and update the statistical result to the mail address list on the server.
  • the sender A first transmits the file segment to the start email address, and then the mail server Sa corresponding to the start email address.
  • the mail is sent to the mail server Sb, and finally the receiving end B obtains the mail and the file segment from the mail address of the mail server Sb.
  • the sender A sends the two file segments to the mail address rl@mail3 of the receiving end B through the mail addresses sl@maill.com and s2@mail2.com. Com and r2@mail4.com, Receiver B receives mail and corresponding file segments from rl@mail3.com and r2@mail4.com.
  • the destination email address and the initial email address may be comprehensively compared by the server according to factors such as the transmission speed of the email addresses of the two parties, and the best starting and destination email address pairs are given.
  • the receiving terminal B may also provide the address information for sending. End A, and then user A compares the transmission speed of the own address with the transmission speed. In this way, the receiving end B does not have to provide the login password of the local mail address.
  • the receiving end A divides the file to be transmitted into multiple blocks, and performs the following operations:
  • the first thread uses the content check value of the block i as the title of the email, and the content of the block i as an attachment, and sends the mail to rl@mail3.com through sl@maill.com.
  • the second thread uses the content check value of the block j as the title of the email, and the content of the block j as an attachment, and sends the mail to r3@mail4.com through s2@mail2.com.
  • how many threads are used to concurrently transfer file segments can be determined at the discretion of the user in accordance with the user's network conditions. Assume that user A's network bandwidth can reach a maximum upload rate of lOOKB/s. In this case, three email addresses with an average transfer rate of 40 KB/s, 30 KB/s, and 30 KB/s can be selected as the starting email address. Thread, so that the sum of the transmission rates is close to the maximum upload bandwidth of the user. When a thread finishes transmitting, according to the algorithm that the sum of all transmission rates is close to the maximum upload bandwidth of the user, one or more email addresses are reselected, in a new thread. Send other blocks, repeat this until all the blocks have been sent.
  • FIG. 4 it is a block diagram of an embodiment of a file transfer apparatus of the present invention, including a transmitting module 4100 and a receiving module 4200.
  • the sending module 4100 includes:
  • a first instant messaging unit 4101 configured to send and/or receive an instant message
  • the destination email address determining unit 4102 is configured to determine a destination email address of the sending target file;
  • the target file sending unit 4103 is configured to send the target file to the destination email address;
  • the sending control unit 4104 is configured to control the target file sending unit to send An object file, and notifying the first instant messaging unit 4101 to send an instant message, the instant message including a control instruction for receiving the target file;
  • the receiving module 4200 includes:
  • a second instant messaging unit 4201 configured to send and/or receive an instant message
  • the target file obtaining unit 4202 is configured to obtain the target file from the destination email address
  • the obtaining control unit 4203 is configured to determine whether the second instant messaging unit 4201 receives an instant message including the receiving target file control instruction, and if received, notify the target file obtaining unit 4202 to acquire the target file.
  • the target file sending unit 4103 includes: a file dividing unit 41031, configured to divide the target file into a plurality of file segments according to a preset rule; and a file segment sending unit 41032, configured to send the file segment to the destination Email address.
  • the sending control unit 4104 includes: a file segment sending control unit 41041, configured to control the file segment sending unit to send the file segment, and notify the first instant messaging unit 4101 to send an instant message, where the instant message includes The control instruction of the segment.
  • the target file obtaining unit includes 4202: a file segment obtaining unit 42021, configured to obtain a file segment from a destination email address, and a file segment combining unit 42022, configured to combine the obtained file segments into a target file.
  • the obtaining control unit 4203 includes: a file segment obtaining control unit 42031, configured to determine whether the second instant messaging unit 4201 receives an instant message including a received file segmentation control instruction, and if notified, notifies the file segment obtaining unit 42021 Get file segmentation.
  • the file segment transmission control unit 41041 notifies the first instant messaging unit 4101 that the sending of the instant message is performed after the file segment transmission control unit 41041 sends one or more file segments to the destination email address.
  • the target file sending unit 4103 may further include: an instant file sending unit 41033, configured to send an instant message including the file segment by using the first instant messaging unit.
  • an instant file sending unit 41033 configured to send an instant message including the file segment by using the first instant messaging unit.
  • the target file obtaining unit 4202 further includes: an instant file receiving unit 42223, configured to acquire a file segment from the instant message including the file segment received by the second instant messaging unit 4201, which is obtained by the file segment obtaining unit 42021
  • an instant file receiving unit 42223 configured to acquire a file segment from the instant message including the file segment received by the second instant messaging unit 4201, which is obtained by the file segment obtaining unit 42021
  • the file segmentation and the instant file receiving unit 42223 segment but how to use, the present invention does not limit this, for example, if an abnormality occurs in the mail sending unit, the file segment is sent using the instant file sending unit.
  • the target file sending unit 4103 may further include: a rate comparing unit 41034, configured to compare a current transmission rate of the first instant messaging unit, and if the value is greater than a predetermined threshold, notify the immediate file sending unit to send the file segment.
  • a rate comparing unit 41034 configured to compare a current transmission rate of the first instant messaging unit, and if the value is greater than a predetermined threshold, notify the immediate file sending unit to send the file segment.
  • a rate comparing unit 41034 configured to compare a current transmission rate of the first instant messaging unit, and if the value is greater than a predetermined threshold, notify the immediate file sending unit to send the file segment.
  • a rate comparing unit 41034 configured to compare a current transmission rate of the first instant messaging unit, and if the value is greater than a predetermined threshold, notify the immediate file sending unit to send the file segment.
  • the sending module 4100 may further include: a starting email address determining unit 4105, configured to determine a starting email address; and the target file sending unit 4103 may further include: a transmitting unit 41035, configured to segment the file Send from the starting email address to the destination email address.
  • the destination email address determining unit 4102 can obtain the destination email address by using the first instant messaging unit, and the starting email determining unit 4105 obtains the starting email address by using the second instant messaging unit.
  • the instant message sent by the first instant messaging unit 4101 further includes the destination email address information of the file segment; the file segment obtaining unit 42021 is configured to obtain the destination email address of the file segment from the instant. Obtained in the message.
  • the file transmission device further includes: a storage unit 4106, configured to store a preset email address list; the destination address determining unit 4102 further includes: a destination email address selection unit 41021, configured to use the storage unit according to a predetermined rule The destination email address is selected in the email address list of 4106; the initial email address determining unit 4105 further includes: a starting email address selecting unit 41051, configured to select a starting email address from the mailing address list of the storage unit 4106 according to a predetermined rule. .
  • the sending control unit 4104 further includes: a first concurrency control unit 41042, configured to control the file segment sending unit 41041 to concurrently transmit the plurality of file segments to the destination mail through different start email addresses. address.
  • a first concurrency control unit 41042 configured to control the file segment sending unit 41041 to concurrently transmit the plurality of file segments to the destination mail through different start email addresses. address.
  • the sending control unit 4104 further includes: a second concurrency control unit 41043, configured to control the file segment sending unit 41041 to concurrently transmit the plurality of file segments to different destination e-mail addresses through different starting e-mail addresses.
  • the sending module 4100 further includes: an email address preference unit 4107, configured to set a priority according to a transmission speed of the initial email address and/or a destination email address; the file segment sending unit 41032 according to the email address
  • the high priority mail address selected by the unit 41021 is preferably sent as a file segment.
  • the mail address preference unit 4107 can optimize the account in the following manner: Count the transmission speed of the mail address used, and record the data transmission speed of the mail address. In addition, the transmission speed can be described in combination with other factors, such as the backbone network, carrier, and geographic location information of the sender, to more accurately describe the transmission speed of the email address under different conditions.
  • the mail address preference unit sets the address priority based on the data, and the mail sending unit selects the mail sending file segment having the higher priority.
  • the receiving module 420 further includes: a checking unit 4204, configured to check the received file segment or the merged target file, and if the verification fails, send the transmission failed instant message through the second instant messaging unit 4201. .
  • a checking unit 4204 configured to check the received file segment or the merged target file, and if the verification fails, send the transmission failed instant message through the second instant messaging unit 4201. .
  • the sending control unit 4104 further includes: a retransmission control unit 41044, configured to determine whether the first instant messaging unit 4101 receives an instant message that the transmission failed, and if received, the notification file segment sending unit 41032 sends a corresponding file. segment.
  • FIG. 5 is a physical structural diagram of a file transfer system to which the file transfer apparatus of the present invention is applied, including a mail server 510, an instant message server 520, a start client 530, and a destination client 540.
  • Both the sending client and the destination client can include a sending module and a receiving module, so that the two clients can send files to each other. It is easy to know that if the process of restricting file transfer is one-way, for example, only the originating client is allowed to send files to the destination client, the originating client only includes the sending module, and the destination client only includes the receiving module. .
  • the destination address determining unit determines the destination mail address used for the current transmission before starting the file transfer. You can use the same email address as the destination email address, that is, the email address can be used to send a complete file to the destination client. You can also split the file into multiple file segments and use the starting email address to divide the file. The segment is transmitted to the destination email address; further, the first concurrency control unit may control the mail sending unit to transmit the plurality of file segments to the destination email address through different starting email addresses; and further, the second concurrency control may be performed. The unit control mail sending unit concurrently transmits the plurality of file segments to the plurality of destination mail addresses through different start mail addresses.
  • the mail address preference unit can set the priority of the mail address in the mail address list according to the transmission speed. It should be noted that the storage unit preset with the mail address list may be in the client and/or the instant message server.
  • the destination address selection unit or the start address selection unit is The destination unit selects the destination email address or the starting email address according to the priority, and then the initiating client or destination client obtains the email address by using instant messaging. It will be readily apparent from the description of the above embodiments that the mail system of the present invention uses the mail address as the starting or destination mail address to transfer the file, and how the starting or destination client obtains the start or destination determination. This is not a limitation.
  • the following describes the transmission process of the system by taking multiple initial email addresses and multiple destination email addresses as examples.
  • the file dividing unit divides the object file to be sent into a plurality of file segments; then, the second concurrency
  • the control unit control file segment sending unit transmits the plurality of file segments to the plurality of destination email addresses through different starting email addresses, and in the process, each time a file segment is sent, the sending control unit notifies the An instant messaging unit sends an instant message to the destination client, the instant message including control instructions for receiving the file segment.
  • the instant message may further include destination email address information corresponding to the control command, such as a mail server address, a login user name, a password, and the like.
  • the email address information is notified to the destination client after each file segment is sent, so that the email address can be adjusted at any time according to the actual transmission situation.
  • an instant message is sent to the destination client, where the instant message includes a control instruction for receiving the plurality of file segments.
  • the sending of the instant message after the one or more file segments are sent to the destination email address is a preferred method of the present invention. Of course, other time may be selected, for example, during file segment transmission, or when the transmission is completed. .
  • the file segment obtaining control unit of the destination client determines whether the second instant messaging unit receives the instant message including the received file segmentation control instruction, and if received, the notification file segment obtaining unit obtains the corresponding destination email address of the control instruction File segmentation.
  • the file segmentation unit combines the acquired file segments into a target file.
  • the file segment obtaining unit in the process of acquiring the file segment, the verification unit verifies the received file segment or the merged target file, and if the verification fails, sends the transmission failed instant message through the second instant messaging unit.
  • the retransmission control unit of the initiating client determines whether the first instant messaging unit receives the instant message of the transmission failure, and if so, notifies the file segment transmission control unit to send the corresponding file segment.
  • the rate comparison unit compares the current transmission rate of the first instant messaging unit, and if greater than the predetermined threshold, notifies the instant file sending unit to send the file segment as an instant message to the destination.
  • the client obtains the file segment from the instant message by the instant file receiving unit.
  • the file segment is combined with other file segments obtained by the file segment obtaining unit into the target file.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Information Transfer Between Computers (AREA)

Abstract

L'invention concerne un procédé, un dispositif et un système pour distribuer des fichiers. Le procédé comprend les étapes consistant à : déterminer une adresse de courrier électronique de destination à laquelle un fichier cible sera envoyé ; envoyer le fichier cible à l'adresse de courrier électronique de destination ; au moyen d'une messagerie instantanée, envoyer un message instantané comprenant une instruction de commande pour recevoir le fichier cible à un côté de réception ; obtenir le fichier cible correspondant à partir de l'adresse de courrier électronique de destination de façon automatique si le message instantané comprenant l'instruction de commande est reçu par le côté de réception. Ainsi, l'état de distribution du fichier cible pourrait être connu par le côté de réception à temps au moyen du message instantané, et une rétroaction pourrait être émise à temps lorsqu'une anomalie se produit pendant la distribution, de telle sorte que la fiabilité de la distribution est assurée. De plus, puisque le côté de réception pourrait déterminer tout d'abord si ou non la distribution du fichier est achevée, il est possible d'obtenir le fichier à temps et d'améliorer l'efficacité de la distribution de fichier.
PCT/CN2008/070524 2007-03-20 2008-03-18 Procédé, dispositif et système pour distribuer des fichiers WO2008113296A1 (fr)

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