CN112822743A - Link switching method and device - Google Patents
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Abstract
The disclosure provides a link switching method and a link switching device, relates to the technical field of communication, and can solve the problem that client transmission conditions are unstable in a complex network environment and improve the quality of data transmission of a client. The specific technical scheme is as follows: monitoring a link quality of a first link of the first client in communication with the data transmission device and monitoring a link quality of at least one alternative link of the first client in communication with the data transmission device; acquiring a set of links to be switched, wherein the link quality of each alternative link in the set of links to be switched is greater than the link quality of a first link; selecting a second link with the optimal link quality from the link set to be switched; the communication link of the first client is switched from the first link to the second link. The invention is used for link switching.
Description
The application is a divisional application of Chinese patent with application number 201810000694.7 and application name of link switching method and device, which is submitted to the Chinese patent office on the application date of 2018, 1 month and 2 days.
Technical Field
The present disclosure relates to the field of communications technologies, and in particular, to a link switching method and apparatus.
Background
With the continuous development of wireless communication technology, more and more clients use wireless links for data transmission and communication. At present, a network transmission route of a client is relatively fixed, but due to complexity and variability of an objective transmission network environment, such as movement of a physical location of the client, weakening of WiFi or data signals, and the like, transmission conditions of the client are unstable, so that the quality or smoothness of images received by the client is reduced.
Disclosure of Invention
The embodiment of the disclosure provides a link switching method and device, which can solve the problem that the client transmission condition is unstable in a complex network environment and improve the quality of data transmission of the client. The technical scheme is as follows:
according to a first aspect of the embodiments of the present disclosure, there is provided a link switching method, including:
monitoring a link quality of a first link of the first client in communication with the data transmission device and monitoring a link quality of at least one alternative link of the first client in communication with the data transmission device;
acquiring a set of links to be switched, wherein the link quality of each alternative link in the set of links to be switched is greater than the link quality of a first link;
selecting a second link with the optimal link quality from the link set to be switched;
the communication link of the first client is switched from the first link to the second link.
Through real-time monitoring, the alternative link with the optimal link quality is selected as the link to be switched, the problem that the transmission condition of the client is unstable in a complex network environment can be solved, and the data transmission quality of the client is improved.
In one embodiment, the method further comprises: and when the link quality of the first link is greater than that of the second link, switching the communication link of the first client to the first link through the second link.
Through the comparison of link quality, the seamless switching between the first link and the second link is realized, and the data transmission quality of the client is ensured.
In one embodiment, prior to monitoring the link quality of a first link of a first client in communication with a data transmission device, the method further comprises:
comparing whether the communication distance between the first client and at least one second client is smaller than a first preset threshold value;
and when the communication distance between the first client and the second client is smaller than a first preset threshold value, the first client and the second client are connected with each other to form a first distributed network.
By establishing the distributed network, distributed cluster cooperation among the clients is realized, network signal redundancy is increased, and the stability of a zero-client data transmission network environment is improved.
In one embodiment, the alternative link is a link where the first client communicates with the data transmission device via any one of the second clients or at least one of the second clients.
In one embodiment, the method further comprises:
determining whether the signal intensity of each client in the first distributed network is greater than a second preset threshold;
when the signal intensity of a third client in the first distributed network is larger than a second preset threshold, determining whether the link quality of the third client and any client in the first distributed network is larger than a third preset threshold;
and when the link quality of the third client and any client in the first distributed network is greater than a third preset threshold, determining the third client as a management device.
And determining the selection of the management equipment according to the signal strength of the client and the link conditions with other clients. When the client position moves, the transmission signal becomes weak and other factors occur, the selection result of the management device changes correspondingly.
According to a second aspect of the embodiments of the present disclosure, there is provided a link switching apparatus, including:
the monitoring module is used for monitoring the link quality of a first link of the first client and the data transmission equipment and monitoring the link quality of at least one alternative link of the first client and the data transmission equipment;
the system comprises an acquisition module, a switching module and a switching module, wherein the acquisition module is used for acquiring a set of links to be switched, and the link quality of each alternative link in the set of links to be switched is greater than that of a first link;
the selection module is used for selecting a second link with the optimal link quality from the link set to be switched;
and the switching module is used for switching the communication link of the first client to the second link from the first link.
In one embodiment, the switching module is further configured to switch the communication link of the first client to the first link from the second link when the link quality of the first link is greater than the link quality of the second link.
In one embodiment, the apparatus further comprises:
the comparison module is used for comparing whether the communication distance between the first client and the at least one second client is smaller than a first preset threshold value or not;
and the connection module is used for connecting the first client and the second client to form a first distributed network when the communication distance between the first client and the second client is smaller than a first preset threshold.
In one embodiment, the alternative link is a link where the first client communicates with the data transmission device via any one of the second clients or at least one of the second clients.
In one embodiment, the apparatus further comprises:
the determining module is used for determining whether the signal intensity of each client in the first distributed network is greater than a second preset threshold;
the determining module is further configured to determine whether the link quality of the third client and any client in the first distributed network is greater than a third preset threshold when the signal strength of the third client in the first distributed network is greater than the second preset threshold;
the determining module is further configured to determine the third client as a management device for link switching when the link quality of the third client and any client in the first distributed network are both greater than a third preset threshold.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and together with the description, serve to explain the principles of the disclosure.
Fig. 1 is a flowchart of a link switching method provided in an embodiment of the present disclosure;
fig. 2 is a flowchart of a link switching method provided in an embodiment of the present disclosure;
fig. 3 is a flowchart of a method for switching a cluster network link according to an embodiment of the present disclosure;
FIG. 4 is a schematic diagram illustrating a result of forming a local distributed network according to an embodiment of the present disclosure;
fig. 5 is a schematic diagram illustrating a formation result of a cluster distributed network according to an embodiment of the present disclosure;
fig. 6 is a schematic diagram illustrating dynamic monitoring and adjustment of a transmission link according to an embodiment of the disclosure;
fig. 7 is a structural diagram of a link switching device according to an embodiment of the disclosure;
fig. 8 is a structural diagram of a link switching device according to an embodiment of the disclosure;
fig. 9 is a structural diagram of a link switching device according to an embodiment of the present disclosure.
Detailed Description
Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The implementations described in the exemplary embodiments below are not intended to represent all implementations consistent with the present disclosure. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present disclosure, as detailed in the appended claims.
An embodiment of the present disclosure provides a link switching method, as shown in fig. 1, the link switching method includes the following steps:
101. the method comprises monitoring a link quality of a first link of the first client in communication with the data transmission device, and monitoring a link quality of at least one alternative link of the first client in communication with the data transmission device.
The first link is a direct link for the first client to communicate with the data transmission device, and the alternative link is an indirect link for the first client to communicate with the data transmission device. The client in the embodiment of the present disclosure may be any one of a conventional client, a thin client, and a zero client. A Thin Client (Thin Client) is a computer terminal basically needing no application program, and transmits input of a mouse, a keyboard and the like to a server for processing, and the server transmits a processing result back to the Client for display; the Zero client (Zero client) is also called an ultra thin client (ultra thin client), is a computing mode based on a server, and has no local software for an end user, little hardware and less functions than the thin client.
102. And acquiring a set of links to be switched.
And the link quality of each alternative link in the link set to be switched is greater than that of the first link. For the link set to be switched, whether the link quality of each alternative link is greater than the link quality of the first link or not can be compared, and when the link quality of an alternative link is greater than the link quality of the first link, the alternative link belongs to one of the link sets to be switched.
103. And selecting a second link with the optimal link quality from the link set to be switched.
In order to ensure the communication quality of the first client and the data transmission equipment, the link qualities of all the alternative links in the link set to be switched are compared, and the alternative link with the optimal link quality is selected from the alternative links to serve as the second link.
104. The communication link of the first client is switched from the first link to the second link.
The link switching method provided by the embodiment of the disclosure monitors the link quality of a first link of a first client and data transmission equipment and monitors the link quality of at least one alternative link of the first client and the data transmission equipment; acquiring a set of links to be switched, wherein the link quality of each alternative link in the set of links to be switched is greater than the link quality of a first link; selecting a second link with the optimal link quality from the link set to be switched; the communication link of the first client is switched from the first link to the second link. Through real-time monitoring, the alternative link with the optimal link quality is selected as the link to be switched, the problem that the transmission condition of the client is unstable in a complex network environment can be solved, and the data transmission quality of the client is improved.
Based on the link switching method provided in the embodiment corresponding to fig. 1, another embodiment of the present disclosure provides a link switching method, and as shown in fig. 2, the link switching method provided in this embodiment includes the following steps:
201. and comparing whether the communication distance between the first client and the at least one second client is smaller than a first preset threshold value.
202. When the communication distance between the first client and the second client is smaller than a first preset threshold value, the first client and the second client are connected with each other to form a first distributed network.
In the embodiment of the disclosure, when the communication distance between the first client and the second client is smaller than the first preset threshold, the first client and the second client are connected with each other through the WiFi P2P module or the data module to form a first distributed network. Among them, WiFi P2P is WiFi Direct, which is an important technical specification introduced by WiFi alliance, and supports multiple WiFi devices to connect to each other without AP (Wireless Access Point). All the clients in the first distributed network are connected with each other and are in a peer-to-peer position, and all the clients can be used as management equipment and also can be used as working equipment.
203. And determining whether the signal strength of each client in the first distributed network is larger than a second preset threshold.
204. When the signal intensity of the third client in the first distributed network is greater than a second preset threshold, determining whether the link quality of the third client and any client in the first distributed network is greater than a third preset threshold.
205. And when the link quality of the third client and any client in the first distributed network is greater than a third preset threshold, determining the third client as a management device for link switching.
Steps 203-205 are how to select a management device from the first distributed network. The selection of the management device needs to be determined according to the signal strength of the client and the link condition with other clients. When the client position moves, the transmission signal becomes weak and other factors occur, the selection result of the management device changes correspondingly. In addition, the first preset threshold, the second preset threshold, and the third preset threshold may be selected according to actual situations, which is not limited in the embodiment of the present disclosure.
206. The method comprises monitoring a link quality of a first link of the first client in communication with the data transmission device, and monitoring a link quality of at least one alternative link of the first client in communication with the data transmission device.
When the first client and the second client form the first distributed network, as described in step 202, the alternative link for the first client to communicate with the data transmission device is a link for the first client to communicate with the data communication device through any one of the second clients or at least one of the second clients.
207. And acquiring a set of links to be switched.
208. And selecting a second link with the optimal link quality from the link set to be switched.
209. The communication link of the first client is switched from the first link to the second link.
For the description of the steps 204 to 208, reference may be made to the description of the steps 101 to 104 in the corresponding embodiment of fig. 1, which is not repeated herein.
210. And when the link quality of the first link is greater than that of the second link, switching the communication link of the first client to the first link through the second link.
When the link quality of the first link is higher than that of the second link, the communication link of the first client is switched to the first link through the second link, seamless switching between the alternative link and the first link is achieved, and data transmission quality of the client is guaranteed.
The link switching method provided by the embodiment of the disclosure monitors the link quality of a first link of a first client and data transmission equipment and monitors the link quality of at least one alternative link of the first client and the data transmission equipment; acquiring a set of links to be switched, wherein the link quality of each alternative link in the set of links to be switched is greater than the link quality of a first link; selecting a second link with the optimal link quality from the link set to be switched; the communication link of the first client is switched from the first link to the second link. Through real-time monitoring, the alternative link with the optimal link quality is selected as the link to be switched, the problem that the transmission condition of the client is unstable in a complex network environment can be solved, and the data transmission quality of the client is improved.
Based on the link switching method provided by the embodiment corresponding to fig. 1 and fig. 2, another embodiment of the present disclosure provides a link switching method, and as shown in fig. 3, the link switching method provided by this embodiment includes the following steps:
301. and initializing a local distributed network.
The zero clients in close physical locations establish P2P (peer-to-peer) communication links with each other through a WiFi P2P module or a data module, establish end-to-end links, and initially form a local distributed network environment. As shown in fig. 4, the null client 1 and the null client 2 which are located close to each other in physical location establish a communication link with each other through the WiFi P2P module, forming a local distributed network environment. Among them, WiFi P2P is WiFi Direct, which is an important technical specification introduced by WiFi alliance, and supports multiple WiFi devices to connect to each other without AP (Wireless Access Point).
And at the same time of forming the local distributed network or after forming the local distributed network, self-organizing elects a zero client with the best physical network condition as a management client. The election criteria are determined by the signal strength of the zero clients themselves and the link conditions with other zero clients. As the zero client criteria change continuously, the management client will change accordingly. Such as MasterA in fig. 4, i.e. the administration client.
302. Master interconnection.
As shown in fig. 5, MasterA, MasterB, MasterC, and MasterD in the four local distributed networks establish connections with each other. The links between masters may also establish P2P communication links with each other through WiFi P2P modules or data modules.
303. The zero client establishes a direct connection with the playback source.
304. And dynamically monitoring a transmission link.
305. And (4) transmission link adjustment.
For the descriptions of steps 304 and 305, the transmission link environments of the zero clients and the broadcast sources are monitored in real time, and when the transmission link environments of a certain zero client and a broadcast source are degraded, the Master of the local distributed network where the certain zero client is located determines the alternative connection link (i.e. the candidate link). And the seamless access of the network transmission environment with the superior alternative relay link is utilized, so that the image transmission quality of the client is ensured.
As shown in fig. 6, the quality of the connection 1 between the zero client and the play source and the quality of the connection 2 between the other zero client and the play source in a direct or pull manner are monitored in real time over the whole network. When the connection quality of the candidate link 2 in other zero client combination modes is higher than the quality of the current direct connection 1, the candidate link 2 directly and seamlessly replaces the current link 1, and service is provided between the zero client and the playing source by using the optimal link in real time.
306. The transmission link is restored.
When the transmission energy of the zero client link network is recovered, namely the quality of the direct link of the zero client is higher than that of the candidate link, the candidate link is removed, and the original direct link is recovered to provide service.
The link switching method provided by the embodiment of the disclosure monitors the link quality of a first link of a first client and data transmission equipment and monitors the link quality of at least one alternative link of the first client and the data transmission equipment; acquiring a set of links to be switched, wherein the link quality of each alternative link in the set of links to be switched is greater than the link quality of a first link; selecting a second link with the optimal link quality from the link set to be switched; the communication link of the first client is switched from the first link to the second link. Through real-time monitoring, the alternative link with the optimal link quality is selected as the link to be switched, the problem that the transmission condition of the client is unstable in a complex network environment can be solved, and the data transmission quality of the client is improved.
Based on the link switching method described in the embodiments corresponding to fig. 1 and fig. 2, the following is an embodiment of the apparatus of the present disclosure, which can be used to execute the embodiment of the method of the present disclosure.
The embodiment of the present disclosure provides a link switching apparatus, as shown in fig. 7, the link switching apparatus 70 includes: the system comprises a monitoring module 701, an acquisition module 702, a selection module 703 and a switching module 704;
a monitoring module 701, configured to monitor a link quality of a first link where the first client communicates with the data transmission device, and monitor a link quality of at least one alternative link where the first client communicates with the data transmission device;
an obtaining module 702, configured to obtain a set of links to be switched, where a link quality of each alternative link in the set of links to be switched is greater than a link quality of a first link;
a selecting module 703, configured to select a second link with the best link quality from the set of links to be switched;
a switching module 704, configured to switch the communication link of the first client from the first link to the second link.
In one embodiment, the switching module 704 is further configured to switch the communication link of the first client to the first link from the second link when the link quality of the first link is greater than the link quality of the second link.
In one embodiment, as shown in fig. 8, the link switching device 70 further includes: a comparison module 705 and a connection module 706;
a comparing module 705, configured to compare whether a communication distance between the first client and the at least one second client is smaller than a first preset threshold;
the connection module 706 is configured to, when a communication distance between the first client and the second client is smaller than a first preset threshold, connect the first client and the second client to form a first distributed network.
In one embodiment, the alternative link is a link where the first client communicates with the data transmission device via any one of the second clients or at least one of the second clients.
In one embodiment, as shown in fig. 9, the link switching device 70 further includes: a determination module 707;
a determining module 707, configured to determine whether a signal strength of each client in the first distributed network is greater than a second preset threshold;
the determining module 707 is further configured to determine, when the signal strength of the third client in the first distributed network is greater than a second preset threshold, whether the link quality of the third client and any client in the first distributed network is greater than a third preset threshold;
the determining module 707 is further configured to determine, when the link quality of the third client and any client in the first distributed network is greater than a third preset threshold, the third client as a management device for link switching.
The link switching device provided by the embodiment of the disclosure monitors the link quality of a first link of a first client and data transmission equipment and monitors the link quality of at least one alternative link of the first client and the data transmission equipment; acquiring a set of links to be switched, wherein the link quality of each alternative link in the set of links to be switched is greater than the link quality of a first link; selecting a second link with the optimal link quality from the link set to be switched; the communication link of the first client is switched from the first link to the second link. Through real-time monitoring, the alternative link with the optimal link quality is selected as the link to be switched, the problem that the transmission condition of the client is unstable in a complex network environment can be solved, and the data transmission quality of the client is improved.
Based on the link switching method described in the embodiments corresponding to fig. 1 to fig. 3, embodiments of the present disclosure further provide a computer-readable storage medium, for example, the non-transitory computer-readable storage medium may be a Read Only Memory (ROM), a Random Access Memory (RAM), a CD-ROM, a magnetic tape, a floppy disk, an optical data storage device, and the like. The storage medium stores computer instructions for executing the data transmission method described in the embodiment corresponding to fig. 1 to fig. 3, which is not described herein again.
Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure disclosed herein. This application is intended to cover any variations, uses, or adaptations of the disclosure following, in general, the principles of the disclosure and including such departures from the present disclosure as come within known or customary practice within the art to which the disclosure pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the disclosure being indicated by the following claims.
It will be understood that the present disclosure is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.
Claims (12)
1. A method of link switching, the method comprising:
monitoring a link quality of a first link of a first client in communication with a data transmission device and monitoring a link quality of at least one alternative link of the first client in communication with the data transmission device;
acquiring a set of links to be switched, wherein the link quality of each alternative link in the set of links to be switched is greater than the link quality of the first link;
and switching the communication link of the first client to any alternative link in the set of links to be switched from the first link.
2. The method of claim 1, wherein prior to monitoring the link quality of the first link of the first client in communication with the data transmission device, the method further comprises:
comparing whether the communication distance between the first client and at least one second client is smaller than a first preset threshold value;
and when the communication distance between the first client and the second client is smaller than the first preset threshold, the first client and the second client are connected with each other to form a first distributed network.
3. The method according to claim 2, wherein the alternative link is a link in which the first client communicates with the data transmission device via any one or at least one of the second clients.
4. The method of claim 2, further comprising:
determining whether the signal intensity of each client in the first distributed network is greater than a second preset threshold;
when the signal intensity of a third client in the first distributed network is greater than the second preset threshold, determining whether the link quality of the third client and any client in the first distributed network is greater than a third preset threshold;
and when the link quality of the third client and any client in the first distributed network is greater than a third preset threshold, determining the third client as a management device for link switching.
5. The method according to claim 2, wherein the switching the communication link of the first client from the first link to any one of the alternative links in the set of links to be switched comprises:
selecting a second link with the optimal link quality from the link set to be switched;
switching a communication link of the first client from the first link to the second link.
6. The method of claim 5, further comprising:
and when the link quality of the first link is greater than the link quality of the second link, switching the communication link of the first client from the second link to the first link.
7. A link switching apparatus, comprising:
the monitoring module is used for monitoring the link quality of a first link of a first client and data transmission equipment and monitoring the link quality of at least one alternative link of the first client and the data transmission equipment;
an obtaining module, configured to obtain a set of links to be switched, where link quality of each alternative link in the set of links to be switched is greater than link quality of the first link;
and the switching module is used for switching the communication link of the first client to any alternative link in the link set to be switched from the first link.
8. The apparatus of claim 7, further comprising:
the comparison module is used for comparing whether the communication distance between the first client and at least one second client is smaller than a first preset threshold value or not;
and the connection module is used for connecting the first client with the second client to form a first distributed network when the communication distance between the first client and the second client is smaller than the first preset threshold.
9. The apparatus of claim 8, wherein the alternative link is a link for the first client to communicate with the data transmission device through any one or at least one of the second clients.
10. The apparatus of claim 8, further comprising:
the determining module is used for determining whether the signal intensity of each client in the first distributed network is greater than a second preset threshold;
the determining module is further configured to determine whether link quality of a third client and any client in the first distributed network is greater than a third preset threshold when the signal strength of the third client in the first distributed network is greater than the second preset threshold;
the determining module is further configured to determine the third client as a management device for link switching when the link quality of the third client and the link quality of any client in the first distributed network are both greater than a third preset threshold.
11. The apparatus of claim 8, wherein the apparatus comprises:
the selection module is used for selecting a second link with the optimal link quality from the link set to be switched;
the switching module is further configured to switch the communication link of the first client from the first link to the second link.
12. The apparatus of claim 11,
the switching module is further configured to switch the communication link of the first client from the second link to the first link when the link quality of the first link is greater than the link quality of the second link.
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CN112822743B (en) | 2023-12-19 |
CN108322922B (en) | 2021-02-12 |
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