CN112199062A - Wireless screen projection implementation method, system, medium, vehicle-mounted terminal and intelligent terminal - Google Patents
Wireless screen projection implementation method, system, medium, vehicle-mounted terminal and intelligent terminal Download PDFInfo
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- CN112199062A CN112199062A CN202011079064.7A CN202011079064A CN112199062A CN 112199062 A CN112199062 A CN 112199062A CN 202011079064 A CN202011079064 A CN 202011079064A CN 112199062 A CN112199062 A CN 112199062A
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/14—Digital output to display device ; Cooperation and interconnection of the display device with other functional units
- G06F3/1454—Digital output to display device ; Cooperation and interconnection of the display device with other functional units involving copying of the display data of a local workstation or window to a remote workstation or window so that an actual copy of the data is displayed simultaneously on two or more displays, e.g. teledisplay
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/80—Services using short range communication, e.g. near-field communication [NFC], radio-frequency identification [RFID] or low energy communication
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W8/00—Network data management
- H04W8/005—Discovery of network devices, e.g. terminals
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Abstract
The invention provides a method, a system, a medium, a vehicle-mounted terminal and an intelligent terminal for realizing wireless screen projection; the method comprises the following steps: establishing wireless screen projection connection with an intelligent terminal; recording the current time of the wireless screen projection connection; when the wireless screen projection connection is interrupted, sequentially initiating reverse connection from back to front according to a time sequence so as to realize wireless screen projection when the reverse connection is successful; according to the invention, when the wireless screen projection is abnormally disconnected, the vehicle-mounted terminal can automatically and reversely connect the intelligent terminal, and the screen projection operation is not required to be manually triggered by a user, so that the trouble of manual operation is saved, and the safety performance of the user in the driving process is improved; according to the invention, automatic screen projection can be realized after a user gets on the vehicle, excessive and complicated operations of the user are not required, and the utilization rate of wireless screen projection of the user is improved.
Description
Technical Field
The invention belongs to the technical field of wireless screen projection, and particularly relates to a method, a system, a medium, a vehicle-mounted terminal and an intelligent terminal for realizing wireless screen projection.
Background
The wireless screen projection is called wireless screen sharing, screen flying and screen sharing, specifically, a picture of a mobile device A (such as a mobile phone, a tablet, a notebook computer and a computer) is displayed on a screen B (a tablet, a notebook computer, a television, an all-in-one machine and a projector) of another device in real time by a certain technical method, and the output content comprises various media information and real-time operation pictures.
With the continuous development of mobile internet and car networking technologies, applications in a car environment are rich, meanwhile, smart phones gradually become an indispensable part of daily lives of people, people can realize various functions in a car through the mobile phones, such as making and receiving calls, checking current real-time road conditions, navigating to a certain place, checking weather, listening to music, listening to books, or talkbacking with friends in real time, and meanwhile, the car display terminal also supports the function of projecting a mobile phone screen onto the car display terminal screen, so that a user can use the application of the mobile phone on a larger screen, but after getting on the car or in the using process, if the screen is abnormally disconnected, the automatic screen projection can not be recovered, the user needs to manually trigger the screen projection, the operation is complex and tedious, and certain troubles and uncomfortable use experience can be brought to the user, moreover, if the operation is performed during the driving process, certain dangerousness is generated, and the driving safety is reduced.
Disclosure of Invention
In view of the above disadvantages of the prior art, an object of the present invention is to provide a method, a system, a medium, a vehicle-mounted terminal, and an intelligent terminal for implementing wireless screen projection, which are used to solve the problems in the prior art that automatic screen projection cannot be automatically resumed due to abnormal screen projection disconnection, manual triggering by a user is required, and operation is complicated.
In order to achieve the above and other related objects, the present invention provides a method for implementing wireless screen projection, which is applied to a vehicle-mounted terminal, and comprises the following steps: establishing wireless screen projection connection with an intelligent terminal; recording the current time of the wireless screen projection connection; and when the wireless screen projection connection is interrupted, sequentially initiating reverse connection from back to front according to a time sequence so as to realize wireless screen projection when the reverse connection is successful.
In an embodiment of the present invention, the step of recording the current time of the wireless screen projection connection includes the following steps: recording first current time of wireless screen projection connection when the wireless screen projection connection is established with the intelligent terminal for the first time; when the intelligent terminal establishes wireless screen projection connection with the vehicle-mounted terminal again, acquiring second current time of the wireless screen projection connection; updating the first current time with the second current time.
In an embodiment of the present invention, the reason for the interruption of the wireless screen projection connection includes: the intelligent terminal is passively disconnected or the intelligent terminal is powered off; wherein, the reason that intelligent terminal breaks passively includes: and external interference and/or the distance between the intelligent terminal and the vehicle-mounted terminal is larger than the effective transmission distance.
The invention provides a wireless screen projection implementation system, which is applied to a vehicle-mounted terminal and comprises the following components: the screen projection device comprises a screen projection connecting module, a time recording module and a reverse connecting module; the screen projection connecting module is used for establishing wireless screen projection connection with the intelligent terminal; the time recording module is used for recording the current time of the wireless screen projection connection; the reverse connection module is used for initiating reverse connection from back to front in sequence according to a time sequence when the wireless screen projection connection is interrupted, so that wireless screen projection is realized when the reverse connection is successful.
The present invention provides a vehicle-mounted terminal, including: a processor and a memory; the memory is used for storing a computer program; the processor is used for executing the computer program stored in the memory so as to enable the vehicle-mounted terminal to execute the wireless screen projection implementation method.
The invention provides a method for realizing wireless screen projection, which is applied to an intelligent terminal and comprises the following steps: judging the connection state of the Bluetooth on the intelligent terminal; when the Bluetooth is in a connection state, the Bluetooth is actively paired with the Bluetooth of the vehicle-mounted terminal; and when the Bluetooth pairing with the vehicle-mounted terminal is successful, initiating wireless screen projection connection to the vehicle-mounted terminal.
The invention provides a wireless screen projection implementation system, which is applied to an intelligent terminal and comprises the following components: the device comprises a judging module, a pairing module and an initiating module; the judging module is used for judging the connection state of the Bluetooth on the intelligent terminal; the pairing module is used for actively pairing with the Bluetooth of the vehicle-mounted terminal when the Bluetooth is in a connection state; the initiating module is used for initiating wireless screen projection connection to the vehicle-mounted terminal when the Bluetooth pairing with the vehicle-mounted terminal is successful.
The invention provides a storage medium, wherein a computer program is stored on the storage medium, and the computer program is executed by a processor to realize the wireless screen projection implementation method applied to the vehicle-mounted terminal and/or the wireless screen projection implementation method applied to the intelligent terminal.
The invention provides an intelligent terminal, comprising: a processor and a memory; the memory is used for storing a computer program; the processor is used for executing the computer program stored in the memory so as to enable the intelligent terminal to execute the wireless screen projection implementation method.
The invention provides a wireless screen projection implementation system, which comprises: the vehicle-mounted terminal and the intelligent terminal are provided.
As described above, the method, the system, the medium, the vehicle-mounted terminal and the intelligent terminal for implementing wireless screen projection according to the present invention have the following beneficial effects:
(1) compared with the prior art, the method and the system have the advantages that the vehicle-mounted terminal can automatically and reversely connect the intelligent terminal when the wireless screen projection is abnormally disconnected, the screen projection operation is not required to be manually triggered by a user, the trouble of manual operation is saved, and the safety performance of the user in the driving process is improved.
(2) According to the invention, automatic screen projection can be realized after a user gets on the vehicle, excessive and complicated operations of the user are not required, and the utilization rate of wireless screen projection of the user is improved.
Drawings
Fig. 1 is a diagram illustrating an application background architecture of an implementation method of a wireless screen projection according to an embodiment of the present invention.
Fig. 2 is a flowchart illustrating a method for implementing a wireless screen projection according to an embodiment of the present invention.
Fig. 3 is a flow chart of the present invention recording the current time of a wireless screen shot connection in one embodiment.
Fig. 4 is a schematic structural diagram of an implementation system of a wireless screen projection according to an embodiment of the invention.
FIG. 5 is a schematic structural diagram of a vehicle-mounted terminal according to an embodiment of the invention.
Fig. 6 is a flowchart illustrating a method for implementing wireless screen projection according to another embodiment of the present invention.
Fig. 7 is a schematic structural diagram of an implementation system of a wireless screen projection according to another embodiment of the invention.
Fig. 8 is a schematic structural diagram of an intelligent terminal according to an embodiment of the invention.
Fig. 9 is a schematic structural diagram of a system for implementing wireless screen projection according to another embodiment of the present invention.
Fig. 10 is a flowchart illustrating a method for implementing wireless screen projection according to another embodiment of the present invention.
Description of the reference symbols
11 vehicle-mounted terminal
12 smart phone
41 throw screen connection module
42 time recording module
43 reverse connection module
51 processor
52 memory
71 judging module
72 pairing module
73 initiating module
81 processor
82 memory
91 vehicle mounted terminal
92 intelligent terminal
S1-S3
S21-S23
S61-S63
SA 1-SA 5 steps
Detailed Description
The following description of the embodiments of the present invention is provided by way of specific examples, and other advantages and effects of the present invention will be readily apparent to those skilled in the art from the disclosure herein. The invention is capable of other and different embodiments and of being practiced or of being carried out in various ways, and its several details are capable of modification in various respects, all without departing from the spirit and scope of the present invention. It is to be noted that the features in the following embodiments and examples may be combined with each other without conflict.
It should be noted that the drawings provided in the following embodiments are only for illustrating the basic idea of the present invention, and the drawings only show the components related to the present invention rather than the number, shape and size of the components in actual implementation, and the type, quantity and proportion of the components in actual implementation may be changed freely, and the layout of the components may be more complicated.
Compared with the prior art, the wireless screen projection realization method, the wireless screen projection realization system, the wireless screen projection realization medium, the vehicle-mounted terminal and the intelligent terminal can enable the vehicle-mounted terminal to automatically and reversely connect back to the intelligent terminal when the wireless screen projection is abnormally disconnected, and a user does not need to manually trigger screen projection operation, so that the trouble of manual operation is saved, and the safety performance of the user in the driving process is improved; according to the invention, automatic screen projection can be realized after a user gets on the vehicle, excessive and complicated operations of the user are not required, and the utilization rate of wireless screen projection of the user is improved.
As shown in fig. 1, the implementation method of wireless screen projection is applied to the vehicle-mounted terminal 11 and the smart phone 12 in fig. 1, an application program (APP) for implementing wireless screen projection is installed on the smart phone 12, when a user enters a vehicle with the smart phone 12, the user opens the APP, the smart phone 12 starts bluetooth pairing with the vehicle-mounted terminal 11, and establishes wireless screen projection connection, so that too many complicated operations of the user are not required, and the utilization rate of the wireless screen projection of the user is improved; in the wireless screen projection process, if abnormal screen projection interruption occurs, the vehicle-mounted terminal 11 is reversely connected with the smart phone 12, so that excessive manual operation of a user is omitted, the screen projection function can be automatically recovered when the wireless screen projection connection of the smart phone 12 and the vehicle-mounted terminal 11 is interrupted, and the safety in the driving process is improved.
It should be noted that, when the user enters the vehicle with the smartphone 12 and turns on the APP, the vehicle-mounted terminal 11 and the smartphone 12 may also actively perform bluetooth pairing to perform wireless screen-projecting connection.
As shown in fig. 2, in an embodiment, the method for implementing wireless screen projection of the present invention is applied to a vehicle-mounted terminal, and includes the following steps:
and step S1, establishing wireless screen projection connection with the intelligent terminal.
And step S2, recording the current time of the wireless screen projection connection.
Specifically, the vehicle-mounted terminal and the intelligent terminal establish wireless screen projection connection, and meanwhile, the vehicle-mounted terminal records the current time of the wireless screen projection connection.
It should be noted that the wireless screen projection connection may be initiated by the intelligent terminal to the vehicle-mounted terminal, or initiated by the vehicle-mounted terminal to the intelligent terminal.
It should be noted that the vehicle-mounted terminal is a front-end device of a vehicle monitoring and management system, which can also be called a vehicle dispatching and monitoring terminal (TCU terminal), and is generally installed in various vehicles in a concealed manner, and the vehicle-mounted terminal device mainly comprises various external devices such as a vehicle-mounted video server, an LCD touch screen, an external camera, a call handle, an automobile burglar alarm and the like; integrating multiple functions such as positioning, communication, automobile driving recorder and the like; the system has strong service scheduling function and data processing capability; supporting the calling of a phone book and the voice broadcasting of text information; the safety protection device has the functions of safety protection alarm, wire cutting alarm, remote safety oil cut-off and power failure safety protection; a plurality of RS-232 interfaces and RS485 interfaces are reserved, and the price calculator, the camera, the microphone, the earphone and the TTS voice synthesis box can be externally connected; the split type design host can be installed in a concealed mode, and the self-contained high-capacity standby battery can be used for working and alarming under the condition that the vehicle-mounted terminal is out of power.
It should be noted that the intelligent terminal includes, but is not limited to, a smart phone, a tablet computer, a PDA, and other terminal devices with a data processing function; generally, an intelligent terminal is a terminal device that has an independent operating system, can be used by a user to install programs provided by third-party service providers such as software and games, continuously expands the functions of a handheld device through the programs, and can realize wireless network access through a mobile communication network.
As shown in fig. 3, in one embodiment, the step of recording the current time of the wireless screen projection connection comprises the following steps:
and S21, recording the first current time of the wireless screen projection connection when the wireless screen projection connection is established with the intelligent terminal for the first time.
And step S22, when the intelligent terminal establishes wireless screen projection connection with the vehicle-mounted terminal again, acquiring the second current time of the wireless screen projection connection.
And step S23, updating the first current time by using the second current time.
It should be noted that, a vehicle-mounted terminal may be connected to a plurality of intelligent terminals, when a wireless screen-casting connection is first established between an intelligent terminal and the vehicle-mounted terminal, the vehicle-mounted terminal may record the time of the wireless screen-casting corresponding to the first time of the intelligent terminal and the vehicle-mounted terminal, when the wireless screen-casting connection is again established between the intelligent terminal and the vehicle-mounted terminal, the vehicle-mounted terminal may update the time of the last screen-casting connection by using the time of the current screen-casting connection, so that the time of the wireless screen-casting connection between the intelligent terminal and the vehicle-mounted terminal recorded on the vehicle-mounted terminal is always the time of the last screen-casting connection between the intelligent terminal and the vehicle-mounted terminal, and all the intelligent terminals establishing the wireless screen-casting connection with the vehicle-mounted terminal perform the recording of the wireless screen-casting connection time in the same manner.
For example, in one embodiment, there are three intelligent terminals, which are an intelligent terminal a, an intelligent terminal B, and an intelligent terminal C, respectively, where the time for the intelligent terminal a to establish a wireless screen-casting connection with the vehicle-mounted terminal for the first time is 2020/08/06-08:30, the time for the intelligent terminal a to establish a wireless screen-casting connection with the vehicle-mounted terminal for the second time is 2020/08/15-15:30, and the time for the intelligent terminal a to establish a wireless screen-casting connection with the vehicle-mounted terminal for the second time is 2020/09/10-08: 45; the time for the intelligent terminal B to establish the wireless screen-casting connection with the vehicle-mounted terminal for the first time is 2020/09/04-14:25, and the time for the intelligent terminal B to establish the wireless screen-casting connection with the vehicle-mounted terminal for the second time is 2020/09/14-18: 50; the time for the intelligent terminal C to establish wireless screen projection connection with the vehicle-mounted terminal for the first time is 2020/09/14-15: 10; the time for establishing the wireless screen projection connection between the three intelligent terminals recorded on the vehicle-mounted terminal and the vehicle-mounted terminal is as follows: an intelligent terminal A-2020/09/10-08: 45; an intelligent terminal B-2020/09/14-18: 50; and (4) intelligent terminals C-2020/09/14-15: 10.
And step S3, when the wireless screen projection connection is interrupted, sequentially initiating reverse connection from back to front according to the time sequence, so as to realize wireless screen projection when the reverse connection is successful.
Specifically, when the wireless screen projection connection between the intelligent terminal and the vehicle-mounted terminal is interrupted, the vehicle-mounted terminal can initiate reverse connection from back to front to the intelligent terminal which is recorded on the vehicle-mounted terminal and is in wireless screen projection connection with the intelligent terminal in sequence according to the time sequence, and the automatic recovery of the wireless screen projection function is completed until the condition that the reverse connection is successful occurs.
It should be noted that, in the process of reversely connecting the vehicle-mounted terminal to the intelligent terminal, if the first reverse connection is successful, the vehicle-mounted terminal does not perform the reverse connection operation on the intelligent terminal before the wireless screen-casting time corresponding to the intelligent terminal successfully connected in the first reverse connection, so as to ensure that the vehicle-mounted terminal can be reversely connected to the intelligent terminal which has recently established the wireless screen-casting connection with the vehicle-mounted terminal.
For example, based on the above-mentioned embodiment, in the process of establishing the wireless screen-casting connection between the intelligent terminal B and the vehicle-mounted terminal for the second time, when the abnormal screen-casting interruption occurs, the vehicle-mounted terminal may initiate reverse connection to the intelligent terminal B, the intelligent terminal C, and the intelligent terminal a in sequence from back to front according to the time sequence (intelligent terminals B-2020/09/14-18: 50; intelligent terminals C-2020/09/14-15: 10; and intelligent terminals a-2020/09/10-08: 45), at this time, the vehicle-mounted terminal may recover the wireless screen-casting connection with the intelligent terminal B to realize the normal wireless screen-casting function, and after the vehicle-mounted terminal successfully establishes the wireless screen-casting connection with the intelligent terminal B, the vehicle-mounted terminal may no longer perform the reverse connection with the intelligent terminal C and the intelligent terminal a, the wireless screen projection connection recovered by the vehicle-mounted terminal is ensured to be the intelligent terminal B which establishes the wireless screen projection connection with the vehicle-mounted terminal for the last time.
In one embodiment, the reason for the interruption of the wireless screen projection connection includes, but is not limited to: the intelligent terminal is passively disconnected or the intelligent terminal is powered off; the reason for the passive disconnection of the intelligent terminal includes, but is not limited to: and external interference and/or the distance between the intelligent terminal and the vehicle-mounted terminal is larger than the effective transmission distance.
Specifically, when the wireless screen projection connection with the vehicle-mounted terminal is interrupted due to shutdown of the intelligent terminal, the vehicle-mounted terminal can be reversely connected with the intelligent terminal after the intelligent terminal is started, and the specific working principle is the same as that described above and is not described herein again; or after the intelligent terminal is started, the intelligent terminal initiates wireless search, and after a vehicle-mounted terminal matched with the intelligent terminal is searched, wireless screen projection connection is initiated to the vehicle-mounted terminal so as to realize wireless screen projection connection; when the wireless screen-casting connection established between the intelligent terminal and the vehicle-mounted terminal is interrupted due to external interference, the vehicle-mounted terminal searches the intelligent terminal which is established with the vehicle-mounted terminal and performs reverse connection from the last connected intelligent terminal according to the time sequence.
It should be noted that the effective transmission distance is a distance that ensures that the intelligent terminal and the vehicle-mounted terminal establish normal wireless screen projection connection, and once the distance between the intelligent terminal and the vehicle-mounted terminal is greater than the effective transmission distance, the distance is too far, so that a signal is weakened, and the wireless screen projection connection is interrupted.
It should be noted that the protection scope of the implementation method of the wireless screen projection applied to the in-vehicle terminal of the present invention is not limited to the execution sequence of the steps (steps S1-S3) listed in this embodiment, and all the solutions implemented by adding or subtracting steps and replacing steps in the prior art according to the principle of the present invention are included in the protection scope of the present invention.
As shown in fig. 4, in an embodiment, the system for implementing wireless screen projection of the present invention is applied to a vehicle-mounted terminal, and includes a screen projection connection module 41, a time recording module 42 and a reverse connection module 43.
The screen projection connection module 41 is used for establishing wireless screen projection connection with the intelligent terminal.
The time recording module 42 is configured to record the current time of the wireless screen projection connection.
The reverse connection module 43 is configured to, when the wireless screen projection connection is interrupted, sequentially initiate reverse connections from back to front according to a time sequence, so as to implement wireless screen projection when the reverse connections are successful.
It should be noted that the structures and principles of the screen projection connection module 41, the time recording module 42, and the reverse connection module 43 correspond to the steps in the above implementation method for wireless screen projection applied to the vehicle-mounted terminal one to one, and therefore, no further description is given here.
It should be noted that the division of the modules of the above system is only a logical division, and the actual implementation may be wholly or partially integrated into one physical entity, or may be physically separated. And these modules can be realized in the form of software called by processing element; or may be implemented entirely in hardware; and part of the modules can be realized in the form of calling software by the processing element, and part of the modules can be realized in the form of hardware. For example, the x module may be a processing element that is set up separately, or may be implemented by being integrated in a chip of the system, or may be stored in a memory of the system in the form of program code, and the function of the x module may be called and executed by a processing element of the system. Other modules are implemented similarly. In addition, all or part of the modules can be integrated together or can be independently realized. The processing element described herein may be an integrated circuit having signal processing capabilities. In implementation, each step of the above method or each module above may be implemented by an integrated logic circuit of hardware in a processor element or an instruction in the form of software.
For example, the above modules may be one or more integrated circuits configured to implement the above methods, such as: one or more Application Specific Integrated Circuits (ASICs), or one or more Digital Signal Processors (DSPs), or one or more Field Programmable Gate Arrays (FPGAs), etc. For another example, when one of the above modules is implemented in the form of a Processing element scheduler code, the Processing element may be a general-purpose processor, such as a Central Processing Unit (CPU) or other processor capable of calling program code. For another example, these modules may be integrated together and implemented in the form of a system-on-a-chip (SOC).
The storage medium of the present invention stores thereon a computer program that, when executed by a processor, implements the above-described implementation method for wireless screen projection applied to a vehicle-mounted terminal. The storage medium includes: various media that can store program codes, such as ROM, RAM, magnetic disk, U-disk, memory card, or optical disk.
As shown in fig. 5, the in-vehicle terminal of the present invention includes a processor 51 and a memory 52.
The memory 52 is used for storing computer programs; preferably, the memory 52 comprises: various media that can store program codes, such as ROM, RAM, magnetic disk, U-disk, memory card, or optical disk.
The processor 51 is connected to the memory 52 and configured to execute the computer program stored in the memory 52, so that the vehicle-mounted terminal executes the above-mentioned implementation method of wireless screen projection.
Preferably, the Processor 51 may be a general-purpose Processor, including a Central Processing Unit (CPU), a Network Processor (NP), and the like; the Integrated Circuit may also be a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), a Field Programmable Gate Array (FPGA) or other Programmable logic device, discrete Gate or transistor logic device, or discrete hardware components.
It should be noted that, the implementation system of the wireless screen projection applied to the vehicle-mounted terminal of the present invention can implement the implementation method of the wireless screen projection applied to the vehicle-mounted terminal of the present invention, but the implementation apparatus of the implementation method of the wireless screen projection applied to the vehicle-mounted terminal of the present invention includes, but is not limited to, the structure of the implementation system of the wireless screen projection applied to the vehicle-mounted terminal recited in this embodiment, and all structural modifications and substitutions of the prior art made according to the principle of the present invention are included in the protection scope of the present invention.
As shown in fig. 6, in an embodiment, the method for implementing wireless screen projection of the present invention is applied to an intelligent terminal, and includes the following steps:
and step S61, judging the connection state of the Bluetooth on the intelligent terminal.
And step S62, actively pairing with the Bluetooth of the vehicle-mounted terminal when the Bluetooth is in a connection state.
And step S63, when the Bluetooth pairing with the vehicle-mounted terminal is successful, initiating wireless screen projection connection to the vehicle-mounted terminal.
It should be noted that, in the prior art, the connection between the mobile phone (corresponding to the smart terminal) and the car machine (corresponding to the car-mounted terminal) usually needs the following steps: 1. opening a wireless screen projection APP on the mobile phone; 2. clicking a wireless screen projection button; 3. after the vehicle is searched, the connection is clicked, the process has more steps, is complex and tedious, reduces the utilization rate of a user, and generates certain danger if the operation is carried out in the driving process; according to the wireless screen projection implementation method applied to the intelligent terminal, as long as the Bluetooth of the intelligent terminal is in a connection state and the intelligent terminal is successfully paired with the Bluetooth of the vehicle-mounted terminal, the intelligent terminal can automatically initiate wireless screen projection connection to the vehicle-mounted terminal, so that a wireless screen projection function is achieved, the complex manual operation in the prior art that a user performs wireless screen projection operation and executes is omitted, the safety of the user in the driving process is improved, and comfortable use experience is brought to the user.
Further, when the intelligent terminal and the vehicle-mounted terminal establish wireless screen projection connection, the wireless screen projection connection is not limited to a Bluetooth pairing-based mode, for example, wifi connection can also be adopted, and the specific working principle is the same as that, and is not repeated here.
It should be noted that the protection scope of the implementation method of the wireless screen projection applied to the intelligent terminal of the present invention is not limited to the execution sequence of the steps (steps S61-S63) listed in this embodiment, and all the solutions implemented by adding or subtracting steps and replacing steps in the prior art according to the principle of the present invention are included in the protection scope of the present invention.
As shown in fig. 7, in an embodiment, the system for implementing wireless screen projection of the present invention is applied to an intelligent terminal, and includes a determining module 71, a pairing module 72, and an initiating module 73.
The judging module 71 is configured to judge a connection state of the bluetooth on the intelligent terminal.
The pairing module 72 is configured to actively pair with the bluetooth of the vehicle-mounted terminal when the bluetooth is in a connected state.
The initiating module 73 is configured to initiate a wireless screen-casting connection to the vehicle-mounted terminal when the bluetooth pairing with the vehicle-mounted terminal is successful.
It should be noted that the structures and principles of the determining module 71, the pairing module 72, and the initiating module 73 correspond to the steps in the above implementation method for wireless screen projection applied to an intelligent terminal one by one, and therefore, no further description is given here.
It should be noted that the division of the modules of the above system is only a logical division, and the actual implementation may be wholly or partially integrated into one physical entity, or may be physically separated. And these modules can be realized in the form of software called by processing element; or may be implemented entirely in hardware; and part of the modules can be realized in the form of calling software by the processing element, and part of the modules can be realized in the form of hardware. For example, the x module may be a processing element that is set up separately, or may be implemented by being integrated in a chip of the system, or may be stored in a memory of the system in the form of program code, and the function of the x module may be called and executed by a processing element of the system. Other modules are implemented similarly. In addition, all or part of the modules can be integrated together or can be independently realized. The processing element described herein may be an integrated circuit having signal processing capabilities. In implementation, each step of the above method or each module above may be implemented by an integrated logic circuit of hardware in a processor element or an instruction in the form of software.
For example, the above modules may be one or more integrated circuits configured to implement the above methods, such as: one or more Application Specific Integrated Circuits (ASICs), or one or more Digital Signal Processors (DSPs), or one or more Field Programmable Gate Arrays (FPGAs), etc. For another example, when one of the above modules is implemented in the form of a Processing element scheduler code, the Processing element may be a general-purpose processor, such as a Central Processing Unit (CPU) or other processor capable of calling program code. For another example, these modules may be integrated together and implemented in the form of a system-on-a-chip (SOC).
The storage medium of the invention stores a computer program, and the computer program realizes the method for realizing the wireless screen projection applied to the intelligent terminal when being executed by the processor. The storage medium includes: various media that can store program codes, such as ROM, RAM, magnetic disk, U-disk, memory card, or optical disk.
As shown in fig. 8, the intelligent terminal of the present invention includes a processor 81 and a memory 82.
The memory 82 is used for storing computer programs; preferably, the memory 82 includes: various media that can store program codes, such as ROM, RAM, magnetic disk, U-disk, memory card, or optical disk.
The processor 81 is connected to the memory 82 and configured to execute the computer program stored in the memory 82, so that the intelligent terminal executes the above-mentioned implementation method applied to the wireless screen projection of the intelligent terminal.
Preferably, the Processor 81 may be a general-purpose Processor, including a Central Processing Unit (CPU), a Network Processor (NP), and the like; the Integrated Circuit may also be a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), a Field Programmable Gate Array (FPGA) or other Programmable logic device, discrete Gate or transistor logic device, or discrete hardware components.
As shown in fig. 9, in an embodiment, the system for implementing wireless screen projection of the present invention includes the vehicle-mounted terminal 91 and the intelligent terminal 92.
It should be noted that, the wireless screen projection implementation system combines the wireless screen projection implementation system applied to the vehicle-mounted terminal and the wireless screen projection implementation system applied to the intelligent terminal, and a specific working principle of the wireless screen projection implementation system applied to the vehicle-mounted terminal is the same as that of the wireless screen projection implementation system applied to the intelligent terminal, and is not described herein again.
It should be noted that the implementation system of the wireless screen projection of the present invention can implement the implementation method of the wireless screen projection of the present invention, but the implementation device of the implementation method of the wireless screen projection of the present invention includes, but is not limited to, the structure of the implementation system of the wireless screen projection recited in this embodiment, and all structural modifications and substitutions in the prior art made according to the principles of the present invention are included in the scope of the present invention.
The following further explains the implementation method of the wireless screen projection according to the present invention by using specific embodiments.
As shown in fig. 10, in an embodiment, the method for implementing the wireless screen projection includes the following steps:
step SA1, the user uses his mobile phone for the first time to project a screen, and opens the Bluetooth of the mobile phone.
And step SA2, pairing the Bluetooth of the mobile phone with the Bluetooth of the vehicle-mounted terminal, and successfully establishing pairing connection.
And step SA3, after the pairing connection is successful, the mobile phone automatically initiates screen throwing connection to the vehicle machine, or the vehicle machine automatically initiates screen throwing connection to the mobile phone, so as to realize wireless screen throwing connection between the mobile phone and the vehicle machine.
Step SA4, after the wireless screen-casting connection is successfully established between the mobile phone and the vehicle machine, the vehicle machine records the current time of the wireless screen-casting connection.
Note that, the step SA4 includes the following steps:
SA41, after the mobile phone and the vehicle machine successfully establish the first wireless screen-casting connection, the vehicle machine records the first current time of the wireless screen-casting connection.
Step SA42, after the mobile phone successfully establishes the wireless screen-casting connection with the car machine again, the car machine obtains the second current time of the wireless screen-casting connection.
Step SA43, the vehicle machine updates the first current time by using the second current time, so as to ensure that the time for successfully establishing the wireless screen-casting connection between the mobile phone and the vehicle machine recorded on the vehicle machine is kept at the latest time for successfully establishing the wireless screen-casting connection between the mobile phone and the vehicle machine.
It should be noted that, when the other mobile phones establish wireless screen-projecting connection with the car machine, the principle is the same as the above steps SA1 to SA4, which are not described in detail herein.
If the screen-throwing connection is interrupted during the wireless screen-throwing connection process between the mobile phone and the vehicle (which may or may not be the first wireless screen-throwing connection process), the following step SA5 is executed.
And step SA5, the vehicle machine initiates reverse connection to the mobile phones which are recorded on the vehicle machine and are in wireless screen projection connection with the mobile phones from back to front in sequence according to the time sequence, and the automatic recovery of the wireless screen projection function is completed until the condition that the reverse connection is successful occurs.
It should be noted that, the implementation method of the wireless screen projection combines the implementation method of the wireless screen projection applied to the vehicle-mounted terminal and the implementation method of the wireless screen projection applied to the intelligent terminal, and a specific working principle of the implementation method of the wireless screen projection applied to the vehicle-mounted terminal is the same as that of the implementation method of the wireless screen projection applied to the intelligent terminal and that of the implementation method of the wireless screen projection applied to the intelligent terminal, and details are not repeated here.
In summary, compared with the prior art, the wireless screen projection implementation method, the wireless screen projection implementation system, the wireless screen projection medium, the vehicle-mounted terminal and the intelligent terminal can enable the vehicle-mounted terminal to automatically and reversely connect back to the intelligent terminal when the wireless screen projection is abnormally disconnected, a user does not need to manually trigger screen projection operation, the trouble of manual operation is saved, and the safety performance of the user in the driving process is improved; according to the invention, automatic screen projection can be realized after a user gets on the vehicle, excessive and complicated operations of the user are not required, and the utilization rate of wireless screen projection of the user is improved; therefore, the invention effectively overcomes various defects in the prior art and has high industrial utilization value.
The foregoing embodiments are merely illustrative of the principles and utilities of the present invention and are not intended to limit the invention. Any person skilled in the art can modify or change the above-mentioned embodiments without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which can be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.
Claims (10)
1. A wireless screen projection implementation method is applied to a vehicle-mounted terminal and is characterized by comprising the following steps:
establishing wireless screen projection connection with an intelligent terminal;
recording the current time of the wireless screen projection connection;
and when the wireless screen projection connection is interrupted, sequentially initiating reverse connection from back to front according to a time sequence so as to realize wireless screen projection when the reverse connection is successful.
2. The method for implementing wireless screen projection according to claim 1, wherein the step of recording the current time of the wireless screen projection connection comprises the following steps:
recording first current time of wireless screen projection connection when the wireless screen projection connection is established with the intelligent terminal for the first time;
when the intelligent terminal establishes wireless screen projection connection with the vehicle-mounted terminal again, acquiring second current time of the wireless screen projection connection;
updating the first current time with the second current time.
3. The method for implementing wireless screen projection according to claim 1, wherein the reason for the interruption of the wireless screen projection connection comprises: the intelligent terminal is passively disconnected or the intelligent terminal is powered off; wherein, the reason that intelligent terminal breaks passively includes: and external interference and/or the distance between the intelligent terminal and the vehicle-mounted terminal is larger than the effective transmission distance.
4. The utility model provides a wireless realization system that throws screen, is applied to vehicle mounted terminal, its characterized in that includes: the screen projection device comprises a screen projection connecting module, a time recording module and a reverse connecting module;
the screen projection connection recording module is used for establishing wireless screen projection connection with the intelligent terminal;
the time recording module is used for recording the current time of the wireless screen projection connection;
the reverse connection module is used for initiating reverse connection from back to front in sequence according to a time sequence when the wireless screen projection connection is interrupted, so that wireless screen projection is realized when the reverse connection is successful.
5. A vehicle-mounted terminal characterized by comprising: a processor and a memory;
the memory is used for storing a computer program;
the processor is used for executing the computer program stored by the memory so as to enable the vehicle-mounted terminal to execute the wireless screen projection implementation method of any one of claims 1 to 3.
6. A wireless screen projection implementation method is applied to an intelligent terminal and is characterized by comprising the following steps:
judging the connection state of the Bluetooth on the intelligent terminal;
when the Bluetooth is in a connection state, the Bluetooth is actively paired with the Bluetooth of the vehicle-mounted terminal;
and when the Bluetooth pairing with the vehicle-mounted terminal is successful, initiating wireless screen projection connection to the vehicle-mounted terminal.
7. The utility model provides a wireless realization system of throwing screen, is applied to intelligent terminal, its characterized in that includes: the device comprises a judging module, a pairing module and an initiating module;
the judging module is used for judging the connection state of the Bluetooth on the intelligent terminal;
the pairing module is used for actively pairing with the Bluetooth of the vehicle-mounted terminal when the Bluetooth is in a connection state;
the initiating module is used for initiating wireless screen projection connection to the vehicle-mounted terminal when the Bluetooth pairing with the vehicle-mounted terminal is successful.
8. A storage medium on which a computer program is stored, which, when being executed by a processor, implements the method for wireless screen projection according to any one of claims 1 to 3 and/or the method for wireless screen projection according to claim 6.
9. An intelligent terminal, comprising: a processor and a memory;
the memory is used for storing a computer program;
the processor is used for executing the computer program stored by the memory so as to enable the intelligent terminal to execute the wireless screen projection implementation method in claim 6.
10. A wireless screen projection implementation system is characterized by comprising: a vehicle-mounted terminal as recited in claim 5 and a smart terminal as recited in claim 9.
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