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CN110933471B - Method, device, system and medium for safely switching channels - Google Patents

Method, device, system and medium for safely switching channels Download PDF

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Publication number
CN110933471B
CN110933471B CN201911311558.0A CN201911311558A CN110933471B CN 110933471 B CN110933471 B CN 110933471B CN 201911311558 A CN201911311558 A CN 201911311558A CN 110933471 B CN110933471 B CN 110933471B
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Prior art keywords
channel identifier
channel
access address
target
target access
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CN110933471A (en
Inventor
管鹤鸣
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Tencent Technology Shenzhen Co Ltd
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Tencent Technology Shenzhen Co Ltd
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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/20Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
    • H04N21/23Processing of content or additional data; Elementary server operations; Server middleware
    • H04N21/24Monitoring of processes or resources, e.g. monitoring of server load, available bandwidth, upstream requests
    • H04N21/2402Monitoring of the downstream path of the transmission network, e.g. bandwidth available
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
    • H04N21/438Interfacing the downstream path of the transmission network originating from a server, e.g. retrieving encoded video stream packets from an IP network
    • H04N21/4383Accessing a communication channel
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
    • H04N21/442Monitoring of processes or resources, e.g. detecting the failure of a recording device, monitoring the downstream bandwidth, the number of times a movie has been viewed, the storage space available from the internal hard disk
    • H04N21/44227Monitoring of local network, e.g. connection or bandwidth variations; Detecting new devices in the local network
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/60Network structure or processes for video distribution between server and client or between remote clients; Control signalling between clients, server and network components; Transmission of management data between server and client, e.g. sending from server to client commands for recording incoming content stream; Communication details between server and client 
    • H04N21/63Control signaling related to video distribution between client, server and network components; Network processes for video distribution between server and clients or between remote clients, e.g. transmitting basic layer and enhancement layers over different transmission paths, setting up a peer-to-peer communication via Internet between remote STB's; Communication protocols; Addressing
    • H04N21/64Addressing
    • H04N21/6402Address allocation for clients
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/80Generation or processing of content or additional data by content creator independently of the distribution process; Content per se
    • H04N21/83Generation or processing of protective or descriptive data associated with content; Content structuring
    • H04N21/835Generation of protective data, e.g. certificates
    • H04N21/8352Generation of protective data, e.g. certificates involving content or source identification data, e.g. Unique Material Identifier [UMID]

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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Databases & Information Systems (AREA)
  • Computer Security & Cryptography (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

The invention discloses a method, a device, a system and a medium for safely switching channels, wherein the method comprises the steps that a terminal acquires a channel switching instruction, and the channel switching instruction comprises a target channel identifier to be switched; initiating a channel switching request to a network resource server according to the target channel identifier; the network resource server acquires a target access address corresponding to the target channel identifier according to the target channel identifier, and issues the target access address to the terminal; the terminal carries out port connectivity detection on the target access address to obtain a detection result; and if the detection result is successful, the terminal switches the channel according to the target access address. The invention evaluates the channel switching condition through connectivity detection, and if the connectivity detection is passed, the channel switching condition is indicated to be met currently, and the channel switching is only carried out. The risk caused by directly switching channels when the channel switching condition is not met is avoided by adding a link of connectivity detection.

Description

Method, device, system and medium for safely switching channels
Technical Field
The present invention relates to the field of channel switching, and in particular, to a method, an apparatus, a system, and a medium for safely switching channels.
Background
In order to improve the user experience of using network resources, in the prior art, resources are often provided for users through multiple channels, and a user can obtain the network resources pointed by the user by accessing any channel. Taking a game scene as an example, a plurality of channels can be provided for a player in a game, each channel can provide resident map resources or copy map resources for the player, resource allocation in the game can be realized through channel switching, and the game experience of the player can be guaranteed more favorably.
However, due to the unstable network quality, the jitter of the data transmission link or the fault of the game server corresponding to the channel, the success rate of channel switching is not high. If the channel switching fails, the user may be disconnected, and the user's viscosity may be reduced.
Disclosure of Invention
In order to solve the problems of unstable channel switching and disconnection caused by switching failure in the prior art, embodiments of the present invention provide a method, an apparatus, a system, and a medium for safely switching channels.
In one aspect, the present invention provides a method for securely switching channels, where the method includes:
a terminal acquires a channel switching instruction, wherein the channel switching instruction comprises a target channel identifier to be switched; initiating a channel switching request to a network resource server according to the target channel identifier;
the network resource server acquires a target access address corresponding to the target channel identifier according to the target channel identifier, and issues the target access address to the terminal;
the terminal carries out port connectivity detection on the target access address to obtain a detection result;
and if the detection result is that the target access address is successfully communicated, the terminal switches the channel according to the target access address.
In another aspect, the present invention provides a method for securely switching channels, including:
acquiring a channel switching instruction, wherein the channel switching instruction comprises a target channel identifier to be switched;
initiating a channel switching request to a network resource server according to the target channel identifier;
acquiring a target access address corresponding to the target channel identifier issued by the network resource server;
carrying out port connectivity detection on the target access address to obtain a detection result;
and if the detection result is that the target access address is successfully communicated, switching the channels according to the target access address.
In another aspect, the present invention provides an apparatus for securely switching channels, the apparatus comprising:
the system comprises a channel switching instruction acquisition module, a channel switching instruction acquisition module and a channel switching instruction processing module, wherein the channel switching instruction acquisition module is used for acquiring a channel switching instruction which comprises a target channel identifier to be switched;
a channel switching request initiating module, configured to initiate a channel switching request to a network resource server according to the target channel identifier;
a target access address obtaining module, configured to obtain a target access address corresponding to the target channel identifier sent by the network resource server;
a connectivity detection module, configured to perform port connectivity detection on the target access address to obtain a detection result;
and the channel switching module is used for switching channels according to the target access address if the detection result is that the target access address is successfully communicated.
In another aspect, the present invention provides a system for safely switching channels, where the system includes a terminal and a network resource server:
the terminal is used for acquiring a channel switching instruction, and the channel switching instruction comprises a target channel identifier to be switched; initiating a channel switching request to a network resource server according to the target channel identifier;
the network resource server is used for acquiring a target access address corresponding to the target channel identifier according to the target channel identifier and sending the target access address to the terminal;
the terminal is also used for carrying out port connectivity detection on the target access address to obtain a detection result;
and if the detection result is that the target access address is successfully communicated, the terminal is also used for switching the channel according to the target access address.
In another aspect, the present invention provides a computer storage medium having at least one instruction, at least one program, code set, or set of instructions stored therein, which is loaded and executed by a processor to implement a method for securely switching channels as described above.
The invention provides a method, a device, a system and a medium for safely switching channels. The risk caused by directly switching channels when the channel switching condition is not met is avoided by adding a link of connectivity detection. And only after the connection with the target access address is successfully established, the connection between the access addresses corresponding to the current channel identification is disconnected, so that the disconnection caused by no available connection under the condition that the terminal cannot be successfully connected with the target access address finally is avoided.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions and advantages of the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
FIG. 1 is a schematic diagram of an interface for a dropped channel due to channel switching according to the present invention;
FIG. 2 is a schematic diagram of an implementation environment of a method for securely switching channels according to the present invention;
FIG. 3 is a flow chart of a method for securely switching channels according to the present invention;
FIG. 4 is a schematic diagram illustrating an issue of a channel switch command according to the present invention;
fig. 5 is a flowchart of a terminal performing port connectivity detection on the target access address to obtain a detection result according to the present invention;
FIG. 6 is a schematic diagram of a terminal interface for terminating channel switching according to the present invention;
fig. 7 is a flowchart illustrating that the terminal performs channel switching according to the target access address;
fig. 8 is a schematic interface diagram illustrating the loading and use of the network resource of the target channel after the channel switching is successful according to the present invention;
FIG. 9 is a schematic diagram of an interface for switching channels of a product-side terminal according to the present invention;
FIG. 10 is a logic diagram of a method for securely switching channels according to the present invention;
FIG. 11 is a flow chart of a method for securely switching channels according to the present invention;
FIG. 12 is a block diagram of an apparatus for securely switching channels according to the present invention;
fig. 13 is a hardware structural diagram of an apparatus for implementing the method provided by the embodiment of the invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.
It should be noted that the terms "first," "second," and the like in the description and claims of the present invention and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the invention described herein are capable of operation in sequences other than those illustrated or described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or server that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
In order to make the objects, technical solutions and advantages disclosed in the embodiments of the present invention more clearly apparent, the embodiments of the present invention are described in further detail below with reference to the accompanying drawings and the embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the embodiments of the invention and are not intended to limit the embodiments of the invention.
In the following, the terms "first", "second" are used for descriptive purposes only and are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present embodiment, "a plurality" means two or more unless otherwise specified. In order to facilitate understanding of the technical solutions and the technical effects thereof described in the embodiments of the present invention, the embodiments of the present invention first explain related terms:
channel (Channel): in the network game, different channels are often set to provide resources or visible lines for users, and a player can obtain better game experience and resources by switching the channels, which is also a way for improving the load of the network game player.
A resident map: mainly describing the scenes in which most players play the game on a daily basis, such as a field map, which cannot be easily destroyed.
Copy map: the scenario that a certain number of players complete a certain mission or activity is mainly described, and each mission or activity is destroyed after being completed.
Transmission control protocol: TCP, Transmission Control Protocol, is a connection-oriented, reliable transport layer communication Protocol based on a byte stream.
With the development of internet technology, users often need to access network resources, such as access to audio and video resources and text resources in a network, or access to operating resources stored in a server corresponding to a certain application program. In order to improve the user experience of using network resources, in the prior art, resources are often provided for users through multiple channels, and a user can obtain the network resources pointed by the user by accessing any channel. The multi-channel arrangement is beneficial to relieving the access pressure of the network resources and realizing the balanced allocation of the network resources. But the unstable problem of channel switching brought by multi-channel setting also reduces the user experience, and the switching failure directly causes the user to drop the line. In many network resource access scenarios, the user is required to log on again after the connection is disconnected due to data security.
Taking a game scene as an example, a player may actively or passively trigger channel switching when switching a map or a scene, according to sampling statistics, the channel switching amount of a game during an internal test period may reach thousands of times or even ten thousands of times per day, and due to regional network differences, the frequent channel switching behavior may cause a high drop rate, and the drop rate of a game during the internal test period reaches more than 20%. As shown in fig. 1, the occurrence of a dropped connection may not only cause the player to be forced to re-log in, but may also cause the player to lose current operating data and even lose game opportunities. For example, if the player is currently playing the game using the resource of channel 1, channel 1 supports at most 100 players to access simultaneously (the maximum number of supported players is 100), and 99 players including player a are currently using the resource of channel 1. If the player A is forced to log in again due to the fact that the channel switching is disconnected, at least one new player occupies the channel 1 before the login is successful, the channel 1 reaches the maximum number of the supported players, and the player A cannot use the resources in the channel 1 again even if the login is successful again, and the game chance is lost.
Obviously, in the prior art, the channel switching is unstable, and the user experience is greatly influenced by the problem of disconnection caused by switching failure. In order to solve the problems of unstable channel switching and disconnection caused by switching failure in the prior art, the embodiment of the invention provides a method for safely switching channels.
First, the embodiment of the present invention discloses an implementation environment of a method for securely switching channels in a possible embodiment.
Referring to fig. 2, the implementation environment includes a terminal 10 and a network resource server 30. The network resource server 30 may be implemented as a stand-alone server or a server cluster composed of a plurality of servers. The network resource server 30 may provide a plurality of channels for the terminal 10 communicating therewith, each channel may provide resources to the terminal 10, and the terminal 10 may acquire resources of different channels in the network resource server 30 by switching the channels.
The terminal 10 may specifically be a vehicle-mounted terminal, a desktop terminal, or a mobile terminal, and the mobile terminal may specifically be at least one of a mobile phone, a tablet computer, a notebook computer, and the like. In a preferred embodiment, the terminal communicates with the network resource server via a reliable TCP transport protocol.
Specifically, the terminal 10 obtains a channel switching instruction, where the channel switching instruction includes a target channel identifier to be switched; and initiating a channel switching request to the network resource server 30 according to the target channel identifier. The network resource server 30 obtains a target access address corresponding to the target channel identifier according to the target channel identifier, and sends the target access address to the terminal 10. The terminal 10 performs port connectivity detection on the target access address to obtain a detection result. If the detection result is that the target access address is successfully communicated, the terminal 10 switches the channel according to the target access address.
Referring to fig. 3, a flowchart of a method for securely switching channels is shown, where the method may be implemented by using a system formed by a terminal and a network resource server in the implementation environment shown in fig. 2 as an execution subject, and the method may include:
s101, a terminal acquires a channel switching instruction, wherein the channel switching instruction comprises a target channel identifier to be switched; and initiating a channel switching request to a network resource server according to the target channel identifier.
Specifically, the user may actively issue a channel switching instruction to the terminal, as shown in fig. 4, which shows a schematic view of a channel switching instruction issuing interface. The channel menu in fig. 4 includes 10 channels, and the 10 channels can provide resources for the user, and a channel switching instruction can be issued to the terminal by manually selecting one of the channels. The schematic diagram of issuing a channel switching instruction in fig. 4 may be a part of a game interface, and a player may actively select to switch a current route of a map at the upper right corner of a game, and then enter the interface of issuing a channel switching instruction shown in fig. 4.
In other possible embodiments, the channel switching instruction may be automatically triggered, and specifically, the automatically triggered channel switching instruction may include two cases. One is that the channel switching command is automatically generated by the terminal. Taking the game scenario as an example, when the corresponding character of the player enters a new map, different maps may be provided by different channels, and thus the terminal may automatically generate a channel switching instruction. The other is that a network resource server communicating with the terminal sends out a channel switching instruction. For example, when the game background resource needs to be allocated, the network resource server may automatically send a channel switching instruction to the terminal where the player is located.
In a preferred embodiment, the terminal obtains a channel switching instruction, where the channel switching instruction includes a target channel identifier to be switched, and before that, the method further includes:
s1, a terminal acquires a candidate channel identification set to be switched.
In one possible embodiment, the candidate channel identification set may be generated by a network resource server and transmitted to the terminal.
In another possible embodiment, if the candidate channel identifier set is automatically generated by the terminal, the obtaining, by the terminal, the candidate channel identifier set to be switched includes:
s11, the terminal obtains a channel identification set corresponding to the network resource to be accessed.
Specifically, the channels pointed by the respective channel identifiers in the channel identifier set may provide the network resources.
S13, if the current channel identifier of the terminal is not located in the channel identifier set and the communication failure channel identifier set is empty, taking the channel identifier set as the candidate channel identifier set;
if the current channel identifier of the terminal is not in the channel identifier set and the connection failure channel identifier set is not empty, taking the difference between the channel identifier set and the connection failure channel identifier set as the candidate channel identifier set;
if the current channel identifier of the terminal is located in the channel identifier set and the connection failure channel identifier set is empty, taking the result of the channel identifier set after the current channel identifier is removed as the candidate channel identifier set;
if the current channel identifier of the terminal is located in the channel identifier set and the connection failure channel identifier set is not empty, removing the current channel identifier from the difference set of the channel identifier set and the connection failure channel identifier set to obtain the candidate channel identifier set;
in the embodiment of the present invention, connectivity detection may be performed in step S105, and the channel identifier corresponding to the target access address with failed connectivity is added to the identity set of the failed connectivity channel.
And S3, randomly determining a target channel identifier from the candidate channel identifier set.
In a preferred embodiment, in order to provide a high-security network resource for each terminal communicating with the network resource server, a user channel state record table is maintained in the network resource server, and a network resource service is provided for the terminal where the user is located according to the user channel state record table. The user channel state recording table comprises a user identifier, a user name, a network resource identifier, a channel identifier and a channel connection state. Taking a game scene as an example, the user channel state recording table is shown in table 1:
TABLE 1
Figure GDA0002693906180000091
In the embodiment of the invention, Status identifies the channel connection state, 0 identifies the stable state, and 1 identifies the switching.
And S103, the network resource server acquires a target access address corresponding to the target channel identifier according to the target channel identifier, and issues the target access address to the terminal.
In one possible embodiment, different channels may correspond to different IP addresses (addresses that conform to the protocol of the interconnection between networks) or different channels may correspond to the same IP address but to different ports, and thus, the access address corresponding to a channel may be formed using the IP address and port. I.e. the destination access address comprises an IP address and a port number.
Accordingly, the network resource server may modify the user channel status record table, as shown in table 2:
TABLE 2
Figure GDA0002693906180000092
Figure GDA0002693906180000101
And S105, the terminal performs port connectivity detection on the target access address to obtain a detection result.
Specifically, the connectivity probe is used to probe the smoothness of a communication link between the terminal and the target access address, and the probe result may be affected by link failure or severe jitter. In order to obtain a more accurate detection result, in the embodiment of the present invention, the performing, by the terminal, port connectivity detection on the target access address to obtain a detection result includes, as shown in fig. 5:
s1051, the terminal initializes the current detection times.
And S1053, the terminal performs port connectivity detection on the target access address for the first time to obtain a detection result.
Specifically, the one-time connectivity detection is mainly used for detecting the smoothness degree of a link between the terminal and the target access address before the terminal really sends the connection request to the target access address, so as to prevent connection failure caused by sending the connection request in a rush manner under the condition that access failure is caused by server process failure of equipment where the target access address is located, firewall policies for blocking terminal access are set, network environment of the terminal is poor, network environment of the equipment where the target access address is located is poor, and the like, and reduce risk of channel switching failure.
In a preferred embodiment, a Winsock function may be used for one connectivity check. Winsock is the specification of network programming under Windows, which is a widely used, open, multiple protocol-supporting network programming interface under Windows.
Taking target access addresses of 123.2.3.4:30002 as an example, the terminal probes 123.2.3.4:30002 through a Winsock function, and example codes are as follows:
sockaddr_in server;
server.sin_family=AF_INET;
server.sin_port=htons(30002);
server.sin_addr.s_addr=inet_addr("123.2.3.4");
if(connect(cnetsocket,(sockaddr*)&server,sizeof(server))==SOCKET_ERROR)
{
break;
}
s1055, if the primary detection result is that the communication fails, judging whether the current detection frequency is smaller than a preset threshold value, if so, automatically increasing the current detection frequency by 1, and returning to execute the step S1053; if not, determining the detection result as the communication failure of the target access address.
The preset threshold may be set or adjusted according to actual conditions, and in a preferred embodiment, the preset threshold is 5.
In one possible embodiment, if the target access address fails to connect, the subsequent steps are not executed, and the channel switching is terminated. At this time, the connection between the terminal and the current channel is not affected, and the terminal can still obtain the network resource through the current channel without disconnection. Accordingly, the network resource server may modify the user channel state record table according to the notification that the terminal terminates the channel switching, as shown in table 3, as can be seen from table 3, the content of the user channel state record table is restored to the state before the channel switching, and the termination of the channel switching does not have any adverse effect on the network resource server and the terminal. Further, the user may also be notified of the result of terminating the channel switching, as shown in fig. 6, which shows a schematic view of a terminal interface for terminating the channel switching.
TABLE 3
Figure GDA0002693906180000111
In another possible embodiment, the target channel identifier corresponding to the target access address may be added to the failed connection channel identifier set, and step S1 is repeatedly executed.
And S1057, if the primary detection result is successful in communication, determining the detection result as successful in communication of the target access address.
And S107, if the detection result is that the target access address is successfully communicated, the terminal switches the channel according to the target access address.
Specifically, the channel switching includes two actions, the first action is to establish a connection with a target access address, and the second action is to disconnect an access address corresponding to the current channel identifier. In the prior art, the connection with the access address corresponding to the current channel identifier is usually disconnected first, and then the connection with the target access address is established, and the channel switching method has a risk that if the connection establishment of the target access address fails, no available connection is caused, so that disconnection is caused, and user experience is reduced.
In order to further avoid the risk of disconnection, the embodiment of the invention designs a channel switching process. The terminal performs channel switching according to the target access address, as shown in fig. 7, including:
s1071, the terminal sends a connection request to the target access address to obtain a connection result.
In a possible embodiment, the sending, by the terminal, a connection request to the target access address and obtaining a connection result includes:
s10711, the terminal initializes the current connection times.
S10713, the terminal carries out port one-time connection to the target access address to obtain a one-time connection result.
S10715, if the one-time connection result is connection failure, judging whether the current connection frequency is smaller than a preset threshold value, if so, automatically increasing the current connection frequency by 1, and returning to execute the step S10713; if not, determining the connection result as the connection failure of the target access address.
In one possible embodiment, if the target access address fails to connect, the subsequent steps are not performed, and the channel switch is terminated. At this time, the connection between the terminal and the current channel is not affected, and the terminal can still obtain the network resource through the current channel without disconnection. Accordingly, the network resource server may modify the user channel status record table according to the notification that the terminal terminated the channel switching, as shown in table 3. Further, the user may also be notified of the result of terminating the channel switching, as shown in fig. 6, which shows a schematic view of a terminal interface for terminating the channel switching.
S10717, if the one-time connection result is successful, determining the connection result as the successful connection of the target access address.
And S1073, if the connection result is that the target access address is successfully connected, the terminal disconnects the access address corresponding to the current channel identifier.
After the step S1073 is completed, the channel switching is completed successfully, and accordingly, the network resource server may modify the user channel state record table according to the notification of the completion of the channel switching of the terminal, as shown in table 4.
TABLE 4
Figure GDA0002693906180000131
After the channel switching is completed, the terminal may use the network resource provided by the target channel, as shown in fig. 8, which shows an interface schematic diagram for loading and using the network resource of the target channel after the channel switching is successful.
As shown in fig. 9, it shows an interface diagram of the product side terminal for channel switching. The progress of the connectivity detection can be updated in real time in the terminal to facilitate the user to know the progress of the channel switching. As can be seen from fig. 9, the technical solution described in the embodiment of the present invention can reduce the risk of channel switching failure by attempting connection for multiple times.
Fig. 10 is a logic diagram illustrating a possible method for securely switching channels according to an embodiment of the present invention. Fig. 10 shows that the embodiment of the present invention evaluates the channel switching condition through connectivity detection, and if the connectivity detection indicates that the channel switching condition is met, the channel switching is performed. The risk caused by directly switching channels when the channel switching condition is not met is avoided by adding a link of connectivity detection. Furthermore, the embodiment of the invention disconnects the connection between the access addresses corresponding to the current channel identifier only after the connection between the access addresses and the target access address is successfully established, thereby avoiding disconnection caused by unavailable connection under the condition that the terminal cannot be successfully connected with the target access address finally. Furthermore, the invention also sets a multi-time connectivity detection mechanism in the connectivity detection link and a multi-time connection mechanism in the channel switching link, thereby further increasing the successful probability of channel switching.
An embodiment of the present invention further provides a method for securely switching a channel, where the method may be implemented by using a terminal in the implementation environment described in fig. 2 as an execution subject, as shown in fig. 11, and the method includes:
s201, a channel switching instruction is obtained, and the channel switching instruction comprises a target channel identifier to be switched.
S203, initiating a channel switching request to a network resource server according to the target channel identifier.
S205, acquiring a target access address corresponding to the target channel identifier issued by the network resource server.
And S207, carrying out port connectivity detection on the target access address to obtain a detection result.
S209, if the detection result is that the target access address is successfully communicated, channel switching is carried out according to the target access address.
The method for safely switching channels and the method for the system main body according to the embodiments of the present invention are based on the same inventive concept, and please refer to the method embodiments of the system main body for details, which are not described herein again.
An embodiment of the present invention provides a device for safely switching channels, as shown in fig. 12, the device includes:
a channel switching instruction obtaining module 301, configured to obtain a channel switching instruction, where the channel switching instruction includes a target channel identifier to be switched.
A channel switching request initiating module 303, configured to initiate a channel switching request to the network resource server according to the target channel identifier.
A target access address obtaining module 305, configured to obtain a target access address corresponding to the target channel identifier sent by the network resource server.
A connectivity detection module 307, configured to perform port connectivity detection on the target access address, and obtain a detection result.
And a channel switching module 309, configured to switch a channel according to the target access address if the detection result indicates that the target access address is successfully communicated.
The embodiments of the device and the method for safely switching channels according to the embodiments of the present invention are based on the same inventive concept, and please refer to the embodiments of the method for details, which are not described herein again.
The invention provides a system for safely switching channels, which comprises a terminal and a network resource server:
the terminal is used for acquiring a channel switching instruction, and the channel switching instruction comprises a target channel identifier to be switched; initiating a channel switching request to a network resource server according to the target channel identifier;
the network resource server is used for acquiring a target access address corresponding to the target channel identifier according to the target channel identifier and sending the target access address to the terminal;
the terminal is also used for carrying out port connectivity detection on the target access address to obtain a detection result;
and if the detection result is that the target access address is successfully communicated, the terminal is also used for switching the channel according to the target access address.
Specifically, the embodiments of the system and the method for safely switching channels according to the embodiments of the present invention are all based on the same inventive concept. For details, please refer to the method embodiment, which is not described herein.
The embodiment of the invention also provides a computer storage medium, and the computer storage medium can store a plurality of instructions. The instructions may be adapted to be loaded by a processor and to perform a method for securely switching channels according to an embodiment of the present invention, the method comprising at least the following steps:
a method of securely switching channels, the method comprising:
a terminal acquires a channel switching instruction, wherein the channel switching instruction comprises a target channel identifier to be switched; initiating a channel switching request to a network resource server according to the target channel identifier;
the network resource server acquires a target access address corresponding to the target channel identifier according to the target channel identifier, and issues the target access address to the terminal;
the terminal carries out port connectivity detection on the target access address to obtain a detection result;
and if the detection result is that the target access address is successfully communicated, the terminal switches the channel according to the target access address.
In a possible embodiment, the performing, by the terminal, port connectivity probing on the target access address to obtain a probing result includes:
initializing the current detection times by the terminal;
the terminal carries out port primary connectivity detection on a target access address to obtain a primary detection result;
if the primary detection result is communication failure, judging whether the current detection times are less than a preset threshold value, if so, automatically increasing the current detection times by 1, and returning to the execution step; if not, determining the detection result as the communication failure of the target access address;
and if the primary detection result is successful communication, determining the detection result as successful communication of the target access address.
In a feasible embodiment, if the detection result is that the connection of the target access address fails, adding the target channel identifier corresponding to the target access address into a connection failure channel identifier set, and repeatedly executing a step of acquiring a channel switching instruction by the terminal, where the channel switching instruction includes a target channel identifier to be switched, and the step of acquiring the channel switching instruction by the terminal includes the target channel identifier to be switched, and includes:
a terminal acquires a candidate channel identifier set to be switched; randomly determining a target channel identifier from the candidate channel identifier set;
the method for the terminal to acquire the candidate channel identifier set to be switched includes:
a terminal acquires a channel identification set corresponding to a network resource to be accessed;
if the current channel identifier of the terminal is not located in the channel identifier set and the connection failure channel identifier set is empty, taking the channel identifier set as the candidate channel identifier set;
if the current channel identifier of the terminal is not in the channel identifier set and the connection failure channel identifier set is not empty, taking the difference between the channel identifier set and the connection failure channel identifier set as the candidate channel identifier set;
if the current channel identifier of the terminal is located in the channel identifier set and the connection failure channel identifier set is empty, taking the result of the channel identifier set after the current channel identifier is removed as the candidate channel identifier set;
and if the current channel identifier of the terminal is located in the channel identifier set and the connection failure channel identifier set is not empty, removing the current channel identifier from the difference set of the channel identifier set and the connection failure channel identifier set to obtain the candidate channel identifier set.
In a possible embodiment, the terminal performs channel switching according to the target access address, including:
the terminal sends a connection request to the target access address to obtain a connection result;
and if the connection result is that the target access address is successfully connected, the terminal disconnects the access address corresponding to the current channel identifier.
In a possible embodiment, the sending, by the terminal, a connection request to the target access address and obtaining a connection result includes:
initializing the current connection times by the terminal;
the terminal carries out port one-time connection to the target access address to obtain a one-time connection result;
if the one-time connection result is connection failure, judging whether the current connection frequency is smaller than a preset threshold value, if so, automatically increasing the current connection frequency by 1, and returning to the execution step: the terminal carries out port one-time connection to the target access address to obtain a one-time connection result; if not, determining the connection result as the connection failure of the target access address;
and if the primary connection result is successful connection, determining the connection result as successful connection of the target access address.
In a possible embodiment, a user channel state record table is maintained in the network resource server, and a network resource service is provided for a terminal where a user is located according to the user channel state record table, where the user channel state record table includes a user identifier, a network resource identifier, a channel identifier, and a channel connection state.
Further, fig. 13 shows a hardware structure diagram of an apparatus for implementing the method provided by the embodiment of the present invention, and the apparatus may participate in forming or containing the device or system provided by the embodiment of the present invention. As shown in fig. 13, the device 10 may include one or more (shown as 102a, 102b, … …, 102 n) processors 102 (the processors 102 may include, but are not limited to, a processing device such as a microprocessor MCU or a programmable logic device FPGA, etc.), a memory 104 for storing data, and a transmission device 106 for communication functions. Besides, the method can also comprise the following steps: a display, an input/output interface (I/O interface), a Universal Serial Bus (USB) port (which may be included as one of the ports of the I/O interface), a network interface, a power source, and/or a camera. It will be understood by those skilled in the art that the structure shown in fig. 13 is only an illustration and is not intended to limit the structure of the electronic device. For example, device 10 may also include more or fewer components than shown in FIG. 13, or have a different configuration than shown in FIG. 13.
It should be noted that the one or more processors 102 and/or other data processing circuitry described above may be referred to generally herein as "data processing circuitry". The data processing circuitry may be embodied in whole or in part in software, hardware, firmware, or any combination thereof. Further, the data processing circuitry may be a single, stand-alone processing module, or incorporated in whole or in part into any of the other elements in the device 10 (or mobile device). As referred to in the embodiments of the application, the data processing circuit acts as a processor control (e.g. selection of a variable resistance termination path connected to the interface).
The memory 104 may be used to store software programs and modules of application software, such as program instructions/data storage devices corresponding to the method described in the embodiment of the present invention, and the processor 102 executes various functional applications and data processing by running the software programs and modules stored in the memory 104, so as to implement the above-mentioned method for securely switching channels. The memory 104 may include high speed random access memory, and may also include non-volatile memory, such as one or more magnetic storage devices, flash memory, or other non-volatile solid-state memory. In some examples, memory 104 may further include memory located remotely from processor 102, which may be connected to device 10 via a network. Examples of such networks include, but are not limited to, the internet, intranets, local area networks, mobile communication networks, and combinations thereof.
The transmission device 106 is used for receiving or transmitting data via a network. Specific examples of such networks may include wireless networks provided by the communication provider of the device 10. In one example, the transmission device 106 includes a network adapter (NIC) that can be connected to other network devices through a base station so as to communicate with the internet. In one example, the transmission device 106 can be a Radio Frequency (RF) module, which is used for communicating with the internet in a wireless manner.
The display may be, for example, a touch screen type Liquid Crystal Display (LCD) that may enable a user to interact with a user interface of the device 10 (or mobile device).
It should be noted that: the precedence order of the above embodiments of the present invention is only for description, and does not represent the merits of the embodiments. And specific embodiments thereof have been described above. Other embodiments are within the scope of the following claims. In some cases, the actions or steps recited in the claims may be performed in a different order than in the embodiments and still achieve desirable results. In addition, the processes depicted in the accompanying figures do not necessarily require the particular order shown, or sequential order, to achieve desirable results. In some embodiments, multitasking and parallel processing may also be possible or may be advantageous.
The embodiments in the present specification are described in a progressive manner, and the same and similar parts among the embodiments are referred to each other, and each embodiment focuses on the differences from the other embodiments. In particular, as for the device and server embodiments, since they are substantially similar to the method embodiments, the description is simple, and the relevant points can be referred to the partial description of the method embodiments.
It will be understood by those skilled in the art that all or part of the steps for implementing the above embodiments may be implemented by hardware, or may be implemented by a program instructing relevant hardware, where the program may be stored in a computer-readable storage medium, and the above-mentioned storage medium may be a read-only memory, a magnetic disk or an optical disk, etc.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims (11)

1. A method for securely switching channels, the method comprising:
a terminal acquires a channel switching instruction, wherein the channel switching instruction comprises a target channel identifier to be switched; initiating a channel switching request to a network resource server according to the target channel identifier;
the network resource server acquires a target access address corresponding to the target channel identifier according to the target channel identifier, and issues the target access address to the terminal;
the terminal carries out port connectivity detection on the target access address to obtain a detection result;
if the detection result is that the target access address is successfully communicated, the terminal switches channels according to the target access address;
if the detection result is that the communication of the target access address fails, adding a target channel identifier corresponding to the target access address into a communication failure channel identifier set to obtain a channel identifier set corresponding to the network resource to be accessed; determining a candidate channel identifier set to be switched according to the channel identifier set and the communication failure channel identifier set; randomly determining a target channel identifier from the candidate channel identifier set; and re-executing and acquiring a channel switching instruction, wherein the channel switching instruction comprises a target channel identifier to be switched.
2. The method according to claim 1, wherein the terminal performs port connectivity probing on the target access address to obtain probing results, including:
initializing the current detection times by the terminal;
the terminal carries out port primary connectivity detection on a target access address to obtain a primary detection result;
if the primary detection result is communication failure, judging whether the current detection times are less than a preset threshold value, if so, automatically increasing the current detection times by 1, and returning to the execution step; if not, determining the detection result as the communication failure of the target access address;
and if the primary detection result is successful communication, determining the detection result as successful communication of the target access address.
3. The method of claim 1, wherein:
the determining a candidate channel identifier set to be switched according to the channel identifier set and the connection failure channel identifier set includes:
if the current channel identifier of the terminal is not located in the channel identifier set and the connection failure channel identifier set is empty, taking the channel identifier set as the candidate channel identifier set;
if the current channel identifier of the terminal is not in the channel identifier set and the connection failure channel identifier set is not empty, taking the difference between the channel identifier set and the connection failure channel identifier set as the candidate channel identifier set;
if the current channel identifier of the terminal is located in the channel identifier set and the connection failure channel identifier set is empty, taking the result of the channel identifier set after the current channel identifier is removed as the candidate channel identifier set;
and if the current channel identifier of the terminal is located in the channel identifier set and the connection failure channel identifier set is not empty, removing the current channel identifier from the difference set of the channel identifier set and the connection failure channel identifier set to obtain the candidate channel identifier set.
4. The method according to claim 1 or 2, wherein the terminal performs channel switching according to the target access address, comprising:
the terminal sends a connection request to the target access address to obtain a connection result;
and if the connection result is that the target access address is successfully connected, the terminal disconnects the access address corresponding to the current channel identifier.
5. The method according to claim 4, wherein the terminal sends a connection request to the target access address to obtain a connection result, and the method comprises:
initializing the current connection times by the terminal;
the terminal carries out port one-time connection to the target access address to obtain a one-time connection result;
if the one-time connection result is connection failure, judging whether the current connection frequency is smaller than a preset threshold value, if so, automatically increasing the current connection frequency by 1, and returning to the execution step: the terminal carries out port one-time connection to the target access address to obtain a one-time connection result; if not, determining the connection result as the connection failure of the target access address;
and if the primary connection result is successful connection, determining the connection result as successful connection of the target access address.
6. The method of claim 1, wherein:
a user channel state recording table is maintained in the network resource server, and network resource service is provided for a terminal where a user is located according to the user channel state recording table, wherein the user channel state recording table comprises a user identifier, a network resource identifier, a channel identifier and a channel connection state.
7. A method for securely switching channels, the method comprising:
acquiring a channel switching instruction, wherein the channel switching instruction comprises a target channel identifier to be switched;
initiating a channel switching request to a network resource server according to the target channel identifier;
acquiring a target access address corresponding to the target channel identifier issued by the network resource server;
carrying out port connectivity detection on the target access address to obtain a detection result;
if the detection result is that the target access address is successfully communicated, switching channels according to the target access address;
if the detection result is that the communication of the target access address fails, adding a target channel identifier corresponding to the target access address into a communication failure channel identifier set to obtain a channel identifier set corresponding to the network resource to be accessed; determining a candidate channel identifier set to be switched according to the channel identifier set and the communication failure channel identifier set; randomly determining a target channel identifier from the candidate channel identifier set; and re-executing the step of obtaining the channel switching instruction, wherein the channel switching instruction comprises the identifier of the target channel to be switched.
8. An apparatus for securely switching channels, the apparatus comprising:
the system comprises a channel switching instruction acquisition module, a channel switching instruction acquisition module and a channel switching instruction processing module, wherein the channel switching instruction acquisition module is used for acquiring a channel switching instruction which comprises a target channel identifier to be switched;
a channel switching request initiating module, configured to initiate a channel switching request to a network resource server according to the target channel identifier;
a target access address obtaining module, configured to obtain a target access address corresponding to the target channel identifier sent by the network resource server;
a connectivity detection module, configured to perform port connectivity detection on the target access address to obtain a detection result;
the channel switching module is used for switching channels according to the target access address if the detection result is that the target access address is successfully communicated;
the device is also used for adding a target channel identifier corresponding to the target access address into a communication failure channel identifier set if the detection result is that the communication of the target access address fails, and acquiring a channel identifier set corresponding to a network resource to be accessed; determining a candidate channel identifier set to be switched according to the channel identifier set and the communication failure channel identifier set; randomly determining a target channel identifier from the candidate channel identifier set; and re-executing the step of obtaining the channel switching instruction, wherein the channel switching instruction comprises the identifier of the target channel to be switched.
9. A system for securely switching channels, the system comprising a terminal and a network resource server:
the terminal is used for acquiring a channel switching instruction, and the channel switching instruction comprises a target channel identifier to be switched; initiating a channel switching request to a network resource server according to the target channel identifier;
the network resource server is used for acquiring a target access address corresponding to the target channel identifier according to the target channel identifier and sending the target access address to the terminal;
the terminal is also used for carrying out port connectivity detection on the target access address to obtain a detection result;
if the detection result is that the target access address is successfully communicated, the terminal is also used for switching channels according to the target access address;
if the detection result is that the communication of the target access address fails, adding a target channel identifier corresponding to the target access address into a communication failure channel identifier set to obtain a channel identifier set corresponding to the network resource to be accessed; determining a candidate channel identifier set to be switched according to the channel identifier set and the communication failure channel identifier set; randomly determining a target channel identifier from the candidate channel identifier set; and re-executing the step of obtaining the channel switching instruction, wherein the channel switching instruction comprises the identifier of the target channel to be switched.
10. A computer storage medium having stored therein at least one instruction, at least one program, set of codes, or set of instructions, which is loaded and executed by a processor to implement a method of securely switching channels as claimed in any one of claims 1 to 6, or a method of securely switching channels as claimed in claim 7.
11. A device for securely switching channels, characterized in that it is adapted to implement a method for securely switching channels according to claim 1 or a method for securely switching channels according to claim 7.
CN201911311558.0A 2019-12-18 2019-12-18 Method, device, system and medium for safely switching channels Active CN110933471B (en)

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