CN111356190A - Communication link switching method, device, terminal and computer readable storage medium - Google Patents
Communication link switching method, device, terminal and computer readable storage medium Download PDFInfo
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- H04W36/24—Reselection being triggered by specific parameters
- H04W36/30—Reselection being triggered by specific parameters by measured or perceived connection quality data
- H04W36/302—Reselection being triggered by specific parameters by measured or perceived connection quality data due to low signal strength
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/0005—Control or signalling for completing the hand-off
- H04W36/0083—Determination of parameters used for hand-off, e.g. generation or modification of neighbour cell lists
- H04W36/0085—Hand-off measurements
- H04W36/0088—Scheduling hand-off measurements
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
- H04B17/30—Monitoring; Testing of propagation channels
- H04B17/309—Measuring or estimating channel quality parameters
- H04B17/318—Received signal strength
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- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
- H04B17/30—Monitoring; Testing of propagation channels
- H04B17/382—Monitoring; Testing of propagation channels for resource allocation, admission control or handover
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Abstract
The embodiment of the invention discloses a switching method, a device, a terminal and a computer readable storage medium of a communication link, wherein the method comprises the following steps: detecting the signal intensity of the first network signal and the signal intensity of the second network signal in real time; when the signal intensity of the first network signal and/or the signal intensity of the second network signal are/is larger than or equal to a first threshold value, selecting the first communication link and/or the second communication link to transmit data according to a preset transmission strategy; and when the signal intensity of the first network signal and the signal intensity of the second network signal are smaller than a second threshold value, selecting the third communication link to transmit data. By the method, the communication link can be automatically switched according to the signal intensity of different network signals, the stability of the communication system is improved, and the robustness of the terminal equipment in the communication process is improved.
Description
Technical Field
The present invention relates to the field of communications technologies, and in particular, to a method, an apparatus, a terminal, and a computer-readable storage medium for switching a communication link.
Background
Along with the development and the progress of science and technology, intelligent robot is applied to each field gradually, patrols and examines the intelligent robot that the robot can independently set for the scheme of patrolling according to actual use environment. When the inspection robot operates outdoors, captured multi-channel audio and video data, robot state data and the like need to be uploaded in real time, control instructions from a control end also need to be received, the cruise robot generally adopts a wireless communication mode to transmit data, and the requirements on network bandwidth and network delay of wireless communication are high.
The traditional cruising robot adopts a 4G mobile network mode for communication, and when the cruising robot is in conditions of long base station distance, large base station access amount and the like, the network bandwidth in the communication process of the cruising robot is reduced, the network delay is high, and the use requirement cannot be met.
Disclosure of Invention
Embodiments of the present invention provide a method, an apparatus, a terminal and a computer-readable storage medium for switching a communication link, which can improve the stability of a communication system and improve the robustness of a terminal device in a communication process.
A switching method of a communication link is applied to a terminal device, the terminal device comprises at least three communication modules, the communication modules are used for establishing communication connection with a communication transmission platform and then forming the communication link, the communication link comprises a first communication link, a second communication link and a third communication link, and the first communication link, the second communication link and the third communication link are respectively used for transmitting a first network signal, a second network signal and a third network signal; the method comprises the following steps:
detecting the signal intensity of the first network signal and the signal intensity of the second network signal in real time;
when the signal intensity of the first network signal and/or the signal intensity of the second network signal are/is larger than or equal to a first threshold value, selecting the first communication link and/or the second communication link to transmit data according to a preset transmission strategy;
and when the signal intensity of the first network signal and the signal intensity of the second network signal are smaller than a second threshold value, selecting the third communication link to transmit data.
Optionally, in one embodiment, the data transmitted by the terminal device includes a first type of data and a second type of data; when the signal strength of the first network signal and/or the signal strength of the second network signal is greater than or equal to a first threshold value, selecting the first communication link and/or the second communication link to transmit data according to a preset transmission strategy, including:
when the signal strength of the first network signal and the second network signal is larger than or equal to a first threshold value, selecting the first type of data to be transmitted through a first communication link, and selecting the second type of data to be transmitted through a second communication link;
when the signal intensity of the first network signal is greater than or equal to a first threshold value and the signal intensity of the second network signal is smaller than a second threshold value, the first type of data and the second type of data are selected to be transmitted through the first communication link;
and when the signal intensity of the second network signal is greater than or equal to a first threshold value and the signal intensity of the first network signal is smaller than a second threshold value, selecting the first type of data and the second type of data to be transmitted through the second communication link.
Optionally, in one embodiment, the first type of data includes at least one of a control instruction, a request instruction, and a talk-back instruction.
Optionally, in one embodiment, the second type of data includes at least one of picture data, audio data, and video data.
Optionally, in one embodiment, the communication module includes a 4G communication module, the communication transmission platform includes a mobile base station, and the 4G communication module establishes a communication connection with the mobile base station, and is used for transmitting a 4G network signal.
Optionally, in one embodiment, the communication module further includes a WiFi communication module, and the communication transmission platform further includes a wireless access point, where the WiFi communication module establishes a communication connection with the wireless access point, and is used to transmit a WiFi network signal.
Optionally, in one embodiment, the communication module further includes a COFDM communication module, and the communication transmission platform further includes a COFDM device, where the COFDM communication module establishes a communication connection with the COFDM device, and is used to transmit a COFDM network signal.
A switching apparatus of a communication link, comprising:
the signal intensity detection module is used for detecting the signal intensity of the first network signal and the signal intensity of the second network signal in real time;
the first selection module is used for selecting a first communication link and/or a second communication link to transmit data according to a preset transmission strategy when the signal intensity of the first network signal and/or the signal intensity of the second network signal is greater than or equal to a first threshold value;
and the second selection module is used for selecting the third communication link to transmit data when the signal intensity of the first network signal and the signal intensity of the second network signal are smaller than a second threshold value.
A terminal comprising a memory and a processor, the memory having stored therein a computer program which, when executed by the processor, causes the processor to carry out the steps of the method as described above.
A computer-readable storage medium, on which a computer program is stored which, when being executed by a processor, carries out the steps of the above-mentioned method.
The embodiment of the invention has the following beneficial effects:
according to the communication link switching method, the communication link switching device, the communication link switching terminal and the computer readable storage medium, by detecting the signal strength of the first network signal and the signal strength of the second network signal in real time, when the signal strength of the first network signal and/or the signal strength of the second network signal are larger than or equal to a first threshold value, the first communication link and/or the second communication link is/are selected to transmit data according to a preset transmission strategy, and when the signal strength of the first network signal and the signal strength of the second network signal are smaller than a second threshold value, the third communication link is selected to transmit data. By the method, the communication link can be automatically switched according to the signal intensity of different network signals, the stability of the communication system is improved, and the robustness of the terminal equipment in the communication process is improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in 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 for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Wherein:
FIG. 1 is a diagram illustrating an exemplary application environment of a handover method of a communication link according to an embodiment;
fig. 2 is a schematic diagram of the internal structure of the terminal in one embodiment;
FIG. 3 is a flow diagram of a method for handoff of a communication link in one embodiment;
FIG. 4 is a flow chart of a method of handover of a communication link in another embodiment;
fig. 5 is a block diagram of a switching device of a communication link according to an embodiment.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more apparent, the present application is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the description of the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. It will be understood that, as used herein, the terms "first," "second," and the like may be used herein to describe various elements, but these elements are not limited by these terms. These terms are only used to distinguish one element from another. For example, a first application may be referred to as a second application, and similarly, the second application may be the first application, without departing from the scope of the present application. The first application and the second application are both applications, but they are not the same application.
Fig. 1 is a schematic application environment of a method for switching a communication link in an embodiment, as shown in fig. 1, the application environment includes a terminal device 110 and a communication transport platform 120, and the terminal device 110 and the communication transport platform 120 are in communication connection via a network.
The terminal device 110 may be an inspection robot, or may be other intelligent robots providing special services, such as an underwater robot, an aerial robot, a military robot, an agricultural robot, and the like. It is understood that the terminal device 110 may also be other devices with communication functions, such as a mobile phone, a tablet computer, a personal digital assistant or a wearable device.
The communication transmission platform 120 may be a mobile station, a wireless Access Point (AP), or a COFDM (Coded Orthogonal Frequency Division Multiplexing) device.
Fig. 2 is a schematic diagram of an internal structure of the terminal in one embodiment. As shown in fig. 2, the terminal includes a processor, a memory, and a communication module connected through a system bus. Wherein, the processor is used for providing calculation and control capability and supporting the operation of the whole terminal. The memory is used for storing data, programs and the like, and the memory stores at least one computer program which can be executed by the processor to realize the switching method of the communication link suitable for the terminal provided in the embodiment of the application. The memory may include a non-volatile storage medium and an internal memory. The non-volatile storage medium stores an operating system and a computer program. The computer program can be executed by a processor for implementing a method for handover of a communication link provided in the following embodiments. The internal memory provides a cached execution environment for the operating system computer programs in the non-volatile storage medium. The communication module may be a 4G communication module, a WiFi communication module, or a COFDM communication module, etc., and is configured to communicate with an external communication transmission platform. The terminal may be a patrol robot.
Those skilled in the art will appreciate that the configuration shown in fig. 2 is a block diagram of only a portion of the configuration associated with the present application and does not constitute a limitation on the terminal to which the present application is applied, and that a particular terminal may include more or less components than those shown, or may combine certain components, or have a different arrangement of components.
Fig. 3 is a flow diagram of a method for handoff of a communication link in one embodiment. The method for switching a communication link in this embodiment is described by taking the terminal device in fig. 1 as an example, where the terminal device includes at least three communication modules, the communication modules are used to establish a communication connection with a communication transmission platform and then form a communication link, and the communication link includes a first communication link, a second communication link, and a third communication link, and is used to transmit a first network signal, a second network signal, and a third network signal, respectively. It can be understood that the method for switching the communication link may also be applied to a control platform that is in communication connection with the terminal device, which is not limited in this embodiment. The switching method of the communication link can improve the stability of the communication system and improve the robustness of the terminal equipment in the communication process. As shown in fig. 3, the method for switching the communication link includes the following steps 302 to 306:
step 302: and detecting the signal intensity of the first network signal and the signal intensity of the second network signal in real time.
The terminal device may establish a plurality of communication links with the communication transport platform through the plurality of communication modules and may be configured to transport a plurality of network signals. The implementation can select a communication link with a better communication state by comparing the quality of the network signals by detecting the signal strength of the first network signal and the signal strength of the second network signal in real time. Optionally, the first network signal may be a 4G network signal, and the second network signal may be a WiFi network signal.
Specifically, the terminal device establishes communication connection with the communication transmission platform through each communication module to form a communication link, and the terminal can acquire the signal intensity of the network signal transmitted by each communication link in real time. For example, the Signal Strength of the wireless network Signal is obtained by RSSI (Received Signal Strength Indication), the link quality of the communication link can be determined, and the Signal Strength of different wireless network signals can be-85 dBm, -95dBm, -115dBm, and the like.
Optionally, the terminal device may further determine, by obtaining a signal transmission rate of the communication link, link quality of the communication link according to the signal transmission rate, so as to select a communication link with a better communication state. When the terminal device communicates with the communication transmission platform through the communication module, the signal transmission rate of the current communication link can be obtained, and the signal transmission rate reflects the signal intensity of the network signal transmitted by the current communication link. For example, the signal transmission rate of different communication links may be 6Mbps (megabits per second), 24Mbps, 54Mbps, etc., that is, the network transmission speed of the communication links is reflected.
Step 304: and when the signal intensity of the first network signal and/or the signal intensity of the second network signal is larger than or equal to a first threshold value, selecting the first communication link and/or the second communication link to transmit data according to a preset transmission strategy.
The first network signal may be a 4G network signal, the second network signal may be a WiFi network signal, the 4G network signal has characteristics of low network delay and good real-time communication effect, the WiFi network signal has characteristics of high bandwidth and capability of carrying transmission of large-flow data, the 4G network signal and the WiFi network signal are wireless communication signals commonly used by the terminal device, and in this embodiment, the signal strength of the first network signal and the signal strength of the second network signal are preferentially judged, so as to determine whether to select the 4G network or the WiFi network for communication according to the signal strength.
In particular, the first threshold may be understood as a signal strength defining value of the network signal in a signal better state. When the signal strength of the first network signal and/or the signal strength of the second network signal are greater than or equal to the first threshold, it is indicated that the first network signal and/or the second network signal are in a signal-preferred state, and at this time, a communication link corresponding to the first network signal and/or the second network signal may be selected according to a preset transmission policy to transmit data, that is, the first communication link and/or the second communication link is selected to perform communication.
Step 306: and when the signal intensity of the first network signal and the signal intensity of the second network signal are smaller than a second threshold value, selecting the third communication link to transmit data.
The third network signal may be a COFDM network signal, which uses low frequency band communication and has good "diffraction" and "penetration" capabilities in non-visual and blocking environments. When the signal intensity of the first network signal and the signal intensity of the second network signal are smaller than the second threshold value, the first network signal and the second network signal are in a poor signal state, the data transmission effect can be influenced by selecting the first network or the second network, the data is transmitted by adopting the communication link corresponding to the third network signal, namely the third communication link is adopted for communication, a better communication effect can be brought, and the timeliness and the smoothness of data transmission are ensured.
In the method for switching a communication link provided in this embodiment, the signal strength of the first network signal and the signal strength of the second network signal are detected in real time, when the signal strength of the first network signal and/or the signal strength of the second network signal is greater than or equal to a first threshold, the first communication link and/or the second communication link is selected according to a preset transmission policy to transmit data, and when the signal strength of the first network signal and the signal strength of the second network signal are less than a second threshold, the third communication link is selected to transmit data. By the method, the communication link can be automatically switched according to the signal intensity of different network signals, the stability of the communication system is improved, and the robustness of the terminal equipment in the communication process is improved.
In one embodiment, the data transmitted by the terminal device includes a first type of data and a second type of data, where the first type of data refers to a data type with low bandwidth requirement, such as a control instruction; the second type of data refers to data types with high bandwidth requirements, such as audio and video data. As shown in fig. 4, step 304 further includes the following steps 402 to 406:
step 402: and when the signal strength of the first network signal and the second network signal is greater than or equal to a first threshold value, selecting the first type of data to be transmitted through a first communication link, and selecting the second type of data to be transmitted through a second communication link.
When the signal strength of the first network signal and the signal strength of the second network signal are greater than or equal to the first threshold, the communication link corresponding to the first network signal and the second network signal may be selected according to the requirement to transmit data, that is, the first communication link and the second communication link are selected to perform communication.
For example, the first threshold may be-105 dBm, and the network signal is determined to be in a signal optimum state when the signal strength of the network signal is greater than or equal to-105 dBm. When the signal strength of the 4G network signal and the WiFi network signal are both greater than or equal to-105 dBm, the 4G network may be preferentially selected for the data type with low bandwidth requirement, and the WiFi network may be preferentially selected for the data type with high bandwidth requirement.
Step 404: and when the signal intensity of the first network signal is greater than or equal to a first threshold value and the signal intensity of the second network signal is smaller than a second threshold value, selecting the first type of data and the second type of data to be transmitted through the first communication link.
The second threshold may be understood as a signal strength defining value at which the network signal is in a poor signal state. When the signal intensity of the first network signal is greater than or equal to the first threshold and the signal intensity of the second network signal is smaller than the second threshold, it is indicated that the first network signal is in a better signal state at the moment, and the second network signal is in a poorer signal state, the first type of data and the second type of data can be selected to be transmitted through the first communication link corresponding to the first network signal, so that the timeliness and the smoothness of data transmission are ensured.
For example, the second threshold may be-115 dBm, which is determined to be in a poor signal state when the signal strength of the network signal is less than-105 dBm. And when the signal strength of the 4G network signal is larger than or equal to-105 dBm and the signal strength of the WiFi network signal is smaller than-115 dBm, the 4G network is preferentially selected to carry out communication on the data type with low bandwidth requirement and the data type with high bandwidth requirement.
Step 406: and when the signal intensity of the second network signal is greater than or equal to a first threshold value and the signal intensity of the first network signal is smaller than a second threshold value, selecting the first type of data and the second type of data to be transmitted through the second communication link.
Similarly, when the signal strength of the WiFi network signal is greater than or equal to-105 dBm and the signal strength of the 4G network signal is less than-115 dBm, the WiFi network signal is preferentially selected for communication for both the data type with low bandwidth requirement and the data type with high bandwidth requirement.
The method for switching the communication link provided by the embodiment can automatically switch the communication link according to the signal strength of different network signals, thereby improving the stability of the communication system and the robustness of the terminal device in the communication process.
In one embodiment, the first type of data includes, but is not limited to, control instructions, request instructions, talk-back instructions, and the like.
In one embodiment, the second type of data includes, but is not limited to, picture data, audio data, video data, and the like.
In one embodiment, the communication module comprises a 4G communication module, and the communication transmission platform comprises a mobile base station, and the 4G communication module establishes a communication connection with the mobile base station for transmitting 4G network signals. For example, the inspection robot can be connected with a 4G network base station of an operator through a 4G module, and further access the internet to perform data interaction with a server deployed at a user side and a terminal control platform.
In one embodiment, the communication module further comprises a WiFi communication module, and the communication transmission platform further comprises a wireless access point, wherein the WiFi communication module establishes a communication connection with the wireless access point for transmitting WiFi network signals. For example, the inspection robot is connected with a self-deployed AP base station through a WiFi communication module, and then accesses the Internet to perform data interaction with a server deployed on a user side and a terminal control platform.
In one embodiment, the communication module further includes a COFDM communication module, and the communication transmission platform further includes a COFDM device, where the COFDM communication module establishes a communication connection with the COFDM device, and is used to transmit the COFDM network signal. For example, the inspection robot establishes a point-to-point transmission link with COFDM equipment at a user side through a COFDM communication module, and then accesses the internet to perform data interaction with a server and a terminal control platform deployed at the user side.
According to the communication link switching method, the terminal equipment can detect the quality of the first network signal and the quality of the second network signal in real time during operation, compares the quality with the set threshold value, and matches the corresponding network communication mode according to the comparison result. And the first network is preferentially selected for the data types with low bandwidth requirements, the second network is preferentially selected for the data types with high bandwidth requirements, and the third network is used as a bottom-of-pocket communication mode. By the method, advantages and disadvantages of various communication modes are combined, a network selection strategy for making good use of advantages and avoiding disadvantages is adopted, instantaneity of low-flow data types and accessibility of high-flow data types can be guaranteed, and meanwhile, a third network is adopted as a bottom-finding measure, so that robustness of the robot wireless communication system is further improved.
It should be understood that although the various steps in fig. 3-4 described above are shown in order as indicated by the arrows, the steps are not necessarily performed in order as indicated by the arrows. The steps are not performed in the exact order shown and described, and may be performed in other orders, unless explicitly stated otherwise. Moreover, at least some of the steps in fig. 3-4 may include multiple sub-steps or multiple stages that are not necessarily performed at the same time, but may be performed at different times, and the order of performance of the sub-steps or stages is not necessarily sequential, but may be performed in turn or alternating with other steps or at least some of the sub-steps or stages of other steps.
As shown in fig. 5, in one embodiment, a switching apparatus of a communication link is provided and includes a signal strength detection module 510, a first selection module 520, and a second selection module 530.
The signal strength detecting module 510 is configured to detect the signal strength of the first network signal and the signal strength of the second network signal in real time.
The first selection module 520 is configured to select the first communication link and/or the second communication link to transmit data according to a preset transmission policy when the signal strength of the first network signal and/or the signal strength of the second network signal is greater than or equal to a first threshold.
The second selecting module 530 is configured to select the third communication link to transmit data when the signal strength of the first network signal and the signal strength of the second network signal are smaller than a second threshold.
The switching device of the communication link can automatically switch the communication link according to the signal intensity of different network signals, improves the stability of a communication system, and improves the robustness of the terminal equipment in the communication process.
For the specific definition of the switching device of the communication link, reference may be made to the above definition of the switching method of the communication link, which is not described herein again. The various modules in the switching means of the above-described communication links may be implemented in whole or in part by software, hardware, and combinations thereof. The modules can be embedded in a hardware form or independent from a processor in the computer device, and can also be stored in a memory in the computer device in a software form, so that the processor can call and execute operations corresponding to the modules.
The implementation of each module in the switching apparatus of the communication link provided in the embodiment of the present application may be in the form of a computer program. The computer program may be run on a terminal or a server. The program modules constituted by the computer program may be stored on the memory of the terminal or the server. The computer program, when executed by a processor, implements the steps of the method of handover of a communication link described in the embodiments of the present application.
The embodiment of the application also provides a computer readable storage medium. One or more non-transitory computer-readable storage media containing computer-executable instructions that, when executed by one or more processors, cause the processors to perform a method of handover of a communication link as described in the embodiments above.
The embodiment of the application also provides a computer program product. A computer program product comprising instructions which, when run on a computer, cause the computer to perform the method of handover of a communication link as described in the embodiments above.
In the above embodiments, all or part of the implementation may be realized by software, hardware, firmware, or any combination thereof. When implemented using a software program, may be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When loaded and executed on a computer, cause the processes or functions described in accordance with the embodiments of the invention to occur, in whole or in part. The computer may be a general purpose computer, a special purpose computer, a network of computers, or other programmable device. The computer instructions may be stored in a computer readable storage medium or transmitted from one computer readable storage medium to another computer readable storage medium. The computer-readable storage medium can be any available medium that can be accessed by a computer or a data storage device, such as a server, a data center, etc., that incorporates one or more of the available media. The usable medium may be a magnetic medium (e.g., floppy Disk, hard Disk, magnetic tape), an optical medium (e.g., DVD), or a semiconductor medium (e.g., Solid State Disk (SSD)), among others.
The above disclosure is only for the purpose of illustrating the preferred embodiments of the present invention, and it is therefore to be understood that the invention is not limited by the scope of the appended claims.
Claims (10)
1. The switching method of the communication link is characterized in that the switching method is applied to terminal equipment, the terminal equipment comprises at least three communication modules, the communication modules are used for forming the communication link after establishing communication connection with a communication transmission platform, and the communication link comprises a first communication link, a second communication link and a third communication link which are respectively used for transmitting a first network signal, a second network signal and a third network signal; the method comprises the following steps:
detecting the signal intensity of the first network signal and the signal intensity of the second network signal in real time;
when the signal intensity of the first network signal and/or the signal intensity of the second network signal are/is larger than or equal to a first threshold value, selecting the first communication link and/or the second communication link to transmit data according to a preset transmission strategy;
and when the signal intensity of the first network signal and the signal intensity of the second network signal are smaller than a second threshold value, selecting the third communication link to transmit data.
2. The method of claim 1, wherein the data transmitted by the terminal device comprises a first type of data and a second type of data; when the signal strength of the first network signal and/or the signal strength of the second network signal is greater than or equal to a first threshold value, selecting the first communication link and/or the second communication link to transmit data according to a preset transmission strategy, including:
when the signal strength of the first network signal and the second network signal is larger than or equal to a first threshold value, selecting the first type of data to be transmitted through a first communication link, and selecting the second type of data to be transmitted through a second communication link;
when the signal intensity of the first network signal is greater than or equal to a first threshold value and the signal intensity of the second network signal is smaller than a second threshold value, the first type of data and the second type of data are selected to be transmitted through the first communication link;
and when the signal intensity of the second network signal is greater than or equal to a first threshold value and the signal intensity of the first network signal is smaller than a second threshold value, selecting the first type of data and the second type of data to be transmitted through the second communication link.
3. The method of claim 2, wherein the first type of data comprises at least one of a control command, a request command, and a talk-back command.
4. The method of claim 2, wherein the second type of data comprises at least one of picture data, audio data, and video data.
5. The method of claim 1, wherein the communication module comprises a 4G communication module, wherein the communication transmission platform comprises a mobile base station, and wherein the 4G communication module establishes a communication connection with the mobile base station for transmitting 4G network signals.
6. The method of claim 1, wherein the communication module further comprises a WiFi communication module, wherein the communication transmission platform further comprises a wireless access point, and wherein the WiFi communication module establishes a communication connection with the wireless access point for transmitting WiFi network signals.
7. The method of claim 1, wherein the communication module further comprises a COFDM communication module, and wherein the communication transmission platform further comprises a COFDM device, and wherein the COFDM communication module establishes a communication connection with the COFDM device for transmitting COFDM network signals.
8. A switching device for a communication link, comprising:
the signal intensity detection module is used for detecting the signal intensity of the first network signal and the signal intensity of the second network signal in real time;
the first selection module is used for selecting a first communication link and/or a second communication link to transmit data according to a preset transmission strategy when the signal intensity of the first network signal and/or the signal intensity of the second network signal is greater than or equal to a first threshold value;
and the second selection module is used for selecting the third communication link to transmit data when the signal intensity of the first network signal and the signal intensity of the second network signal are smaller than a second threshold value.
9. A terminal, characterized in that it comprises a memory and a processor, the memory having stored therein a computer program which, when executed by the processor, causes the processor to carry out the steps of the method according to any one of claims 1 to 7.
10. A computer-readable storage medium, on which a computer program is stored, which, when being executed by a processor, carries out the steps of the method according to any one of claims 1 to 7.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811588372.5A CN111356190A (en) | 2018-12-24 | 2018-12-24 | Communication link switching method, device, terminal and computer readable storage medium |
| PCT/CN2018/125105 WO2020133289A1 (en) | 2018-12-24 | 2018-12-28 | Communication link handover method and apparatus, terminal, and computer readable storage medium |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811588372.5A CN111356190A (en) | 2018-12-24 | 2018-12-24 | Communication link switching method, device, terminal and computer readable storage medium |
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