CN114327321A - Wireless screen projection different-display different-touch method and system thereof - Google Patents
Wireless screen projection different-display different-touch method and system thereof Download PDFInfo
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- CN114327321A CN114327321A CN202011070249.1A CN202011070249A CN114327321A CN 114327321 A CN114327321 A CN 114327321A CN 202011070249 A CN202011070249 A CN 202011070249A CN 114327321 A CN114327321 A CN 114327321A
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Abstract
The invention provides a method and a system for wireless screen projection different display different touch, comprising the following steps: the method comprises the steps of establishing a transmitting device and a receiving device into a wireless local area network; the transmitting device creates a virtual display device and a virtual input device; the receiving device is connected with the transmitting device through the wireless local area network and prepares to forward the input event; the receiving device forwards the received input event to the transmitting device; and the virtual input equipment of the transmitting device collects the input events, binds the collected input events to the virtual display equipment, and updates the display interface. The technical scheme provided by the invention adopts wireless screen projection different-display different-touch, can realize free switching of single screen and double screens, and has good interactivity.
Description
Technical Field
The invention relates to the field of communication, in particular to a wireless screen projection different-display different-touch method and a wireless screen projection different-display different-touch system.
Background
At present, there are two general forms of desktop cash register devices on the market: single screen and dual screen; in the double-screen form, the two screens are mostly connected through physical wires, so that the distance between the two screens is limited, the longer the wire is, the higher the quality requirement on the wire is, the faster the signal attenuation is, and the wire layout in shops and supermarkets is particularly troublesome and unsightly, and the wire length is generally fixed in the factory leaving stage of manufacturers, so that the flexibility in equipment layout is lacked, the free switching of single and double screens cannot be realized, and the interactivity is not available.
Therefore, how to improve the flexibility of the device layout and achieve the free switching between the single screen and the dual screens and how to improve the interactivity of the device to meet the diversified demands in the market are still the urgent needs of the industry.
Disclosure of Invention
In view of the above, the present invention provides a method and a system for wirelessly projecting different-display different-touch on a screen, which can realize free switching between single and dual screens and have good interactivity.
The invention provides a wireless screen projection different-display different-touch method, which comprises the following steps:
the method comprises the steps of establishing a transmitting device and a receiving device into a wireless local area network;
the transmitting device creates a virtual display device and a virtual input device;
the receiving device is connected with the transmitting device through the wireless local area network and prepares to forward an input event;
the receiving device forwarding the received input event to the transmitting device; and
and the virtual input equipment of the transmitting device collects the input events, binds the collected input events to the virtual display equipment, and updates a display interface.
Preferably, after the step of the transmitting apparatus creating a virtual display device and a virtual input device, the method further comprises:
the transmitting device and the receiving device carry out negotiation and parameter configuration through a real-time stream transmission protocol.
Preferably, after the step of preparing to forward the input event, the method further comprises:
the transmitting device transmits audio data and video data to the receiving device via a real-time transport protocol.
Preferably, after the step of updating the display interface, the method further comprises:
judging whether the wireless local area network is disconnected or not;
if the connection is not disconnected, switching to the step execution that the transmitting device transmits audio data and video data to the receiving device through a real-time transmission protocol;
if the connection is broken, the communication is ended.
In another aspect, the present invention further provides a system for wireless screen projection and different display and different touch, comprising a transmitting device and a receiving device which are jointly configured as a wireless local area network, wherein,
the transmitting device is used for creating a virtual display device and a virtual input device; and
the receiving device is used for connecting the transmitting device through the wireless local area network, preparing to forward an input event and forwarding the received input event to the transmitting device;
the virtual input device of the transmitting device collects the input events, binds the collected input events to the virtual display device, and updates a display interface.
Preferably, the transmitting device and the receiving device perform negotiation and parameter configuration through a real-time streaming protocol.
Preferably, the transmitting device is further configured to transmit audio data and video data to the receiving device through a real-time transmission protocol.
Preferably, the receiving device is also used for
Judging whether the wireless local area network is disconnected or not;
if the connection is not disconnected, continuing to receive the audio data and the video data transmitted by the transmitting device through the real-time transmission protocol;
if the connection is broken, the communication is ended.
In another aspect, the present invention further provides a transmitting apparatus, wherein the transmitting apparatus and a corresponding receiving apparatus are jointly configured to form a wireless local area network, and the transmitting apparatus includes:
the creating module is used for creating a virtual display device and a virtual input device;
the configuration module is used for carrying out negotiation and parameter configuration on the receiving device through a real-time streaming transmission protocol;
the transmitting module is used for transmitting audio data and video data to the receiving device through a real-time transmission protocol; a receiving module for receiving an input event from the receiving device; and
and the updating module is used for collecting the input events by using the virtual input equipment, binding the collected input events to the virtual display equipment and updating a display interface.
In still another aspect, the present invention provides a receiving apparatus, wherein the receiving apparatus and a corresponding transmitting apparatus are jointly configured to form a wireless local area network, the transmitting apparatus creates a virtual display device and a virtual input device and performs negotiation and parameter configuration with the receiving apparatus through a real-time streaming protocol, and the receiving apparatus includes:
a connection module, configured to connect to the transmitting apparatus through the wireless lan, and prepare to forward an input event; and
a forwarding module for forwarding the received input event to the transmitting device;
the virtual input device of the transmitting device collects the input events, binds the collected input events to the virtual display device, and updates a display interface.
The technical scheme provided by the invention has the following advantages: adopt wireless screen different showing different touching of throwing, very big improvement flexibility on the equipment layout, can realize single double screen freely switching, and have good interactivity, can satisfy diversified demand on the market.
Drawings
FIG. 1 is a flowchart illustrating a method for wireless screen projection with different display and different touch according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a wireless screen projection different-display different-touch system according to an embodiment of the invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention 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 invention and are not intended to limit the invention.
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention 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 invention and are not intended to limit the invention.
The method for wireless screen projection and different display and different touch provided by the invention will be described in detail below.
Fig. 1 is a schematic flow chart of a method for wireless screen projection different display different touch according to an embodiment of the present invention.
In step S11, the transmitting apparatus and the receiving apparatus are configured as a wireless local area network.
In this embodiment, through WIFI P2P basic technology, couple together two independent equipment wireless connections of emitter and receiving arrangement, constitute a interim wireless local area network, through adopting wireless screen and the different mode that touches of different apparent, very big improvement the flexibility in the equipment overall arrangement to connect through the physics wire rod and lead to the defect that lacks the flexibility in the equipment overall arrangement among the traditional prior art has been avoided.
In step S12, the transmitting apparatus creates a virtual display device and a virtual input device.
In this embodiment, the virtual display device is created in the transmitting apparatus, so that the system knows that a plurality of display devices are available for selection, and the transmitting end of the system can support multiple display devices by virtualizing an internal display device on the transmitting apparatus, thereby achieving the purpose of multiple display targets. In this embodiment, after the transmitting apparatus and the receiving apparatus are assembled into the wireless local area network, a virtual input device is also created at the transmitting apparatus for starting the event reception service.
In step S13, the transmitting device and the receiving device perform negotiation and parameter configuration through the real-time streaming protocol.
In the present embodiment, the transmitting device and the receiving device perform negotiation and parameter configuration through a Real Time Streaming Protocol (RTSP), for example, specify how both sides communicate, how to perform parameter configuration, how to transmit a video stream and an audio stream in Real Time, and the like, which all require the RTSP Protocol to contract.
In step S14, the receiving apparatus connects to the transmitting apparatus through the wireless local area network and prepares to forward the input event.
In this embodiment, after the receiving apparatus performs normal communication with the transmitting apparatus through the wireless lan, the receiving apparatus enters a state in which it is ready to forward an input event, which in this embodiment includes a touch event of a user touching a device,
in step S15, the transmitting device transmits audio data and video data to the receiving device through a real-time transmission protocol.
In this embodiment, the transmitting device transmits audio data and video data to the receiving device via a Real-time Transport Protocol (RTP), and the RTP Protocol ensures stability and Real-time performance of data transmission.
In step S16, the receiving device forwards the received input event to the transmitting device.
In this embodiment, the receiving device forwards the received input event to the transmitting device via the wireless local area network.
In step S17, the virtual input device of the transmitting apparatus collects the input events, binds the collected input events to the virtual display device, and updates the display interface.
In this embodiment, the virtual input device of the transmitting apparatus receives the input events collected by the virtual input device from the receiving apparatus, binds the collected input events to the virtual display device, distributes the input events to the user display interface if the input events are touch events, and updates the display interface, thereby achieving good interaction.
In step S18, it is determined whether the wireless lan is disconnected.
If the connection is not disconnected, the process proceeds to step S15 where the transmitting device transmits the audio data and the video data to the receiving device through the real-time transmission protocol.
If the connection is disconnected, in step S17, the communication is ended.
Fig. 2 is a schematic structural diagram of a wireless screen projection different-display different-touch system according to an embodiment of the present invention.
In the present embodiment, the wireless screen-projection and different-display and different-touch system 1 includes a transmitting apparatus 2 and a receiving apparatus 3 which are jointly configured as a wireless local area network. In this embodiment, through WIFI P2P basic technology, couple together two independent equipment wireless connections of emitter 2 and receiving arrangement 3, constitute a interim wireless local area network, through adopting wireless screen and the different mode that touches of different apparent, very big improvement the flexibility in the equipment overall arrangement to connect through the physical wire rod among the traditional prior art and lead to the defect that lacks the flexibility in the equipment overall arrangement.
In this embodiment, the transmitting device 2 is used to create a virtual display device and a virtual input device. In this embodiment, a virtual display device is created in the transmitting apparatus 2, so that the system knows that a plurality of display devices are available for selection, and the transmitting end of the system can support multiple display devices by virtualizing an internal display device on the transmitting apparatus 2, thereby achieving the purpose of multiple display targets. In the present embodiment, after the transmitting apparatus 2 and the receiving apparatus 3 are configured into the wireless local area network, a virtual input device is also created at the transmitting apparatus 2 for starting the event reception service.
In the present embodiment, the transmitting apparatus 2 and the receiving apparatus 3 perform negotiation and parameter configuration by a real-time streaming protocol. In the present embodiment, the transmitting device 2 and the receiving device 3 perform negotiation and parameter configuration by the RTSP protocol, for example, specify how both parties communicate, how parameter configuration is performed, how video streams and audio streams are transmitted in real time, and the like, which all require the RTSP protocol to make an agreement.
And a receiving device 3 for connecting the transmitting device 2 through the wireless local area network, preparing to forward the input event, and forwarding the received input event to the transmitting device 2.
In the present embodiment, the transmitting device 2 is further configured to transmit audio data and video data to the receiving device 3 through a real-time transport protocol, and the RTP protocol is utilized to ensure stability and real-time performance of data transmission.
In the present embodiment, the virtual input device of the transmitting apparatus 2 collects input events, binds the collected input events to the virtual display device, and updates the display interface.
In this embodiment, the virtual input device of the transmitting apparatus 2 receives the input events it has collected from the receiving apparatus 3, binds the collected input events to the virtual display device, distributes to the user display interface if the input events are touch events, and updates the display interface, thus achieving good interaction.
In this embodiment, the receiving device 3 is further configured to determine whether the wireless lan is disconnected; if the connection is not broken, continuing to receive the audio data and the video data transmitted by the transmitting device 2 through the real-time transmission protocol; if the connection is broken, the communication is ended.
In the present embodiment, the transmitting apparatus 2 includes a creating module 21, a configuring module 22, a transmitting module 23, a receiving module 24, and an updating module 25.
In the present embodiment, the receiving apparatus 3 includes a connection module 31 and a forwarding module 32.
A creating module 21 for creating a virtual display device and a virtual input device.
And a configuration module 22, configured to perform negotiation and parameter configuration with the receiving apparatus through the real-time streaming protocol.
A sending module 23, configured to transmit the audio data and the video data to the receiving apparatus through a real-time transport protocol.
A receiving module 24, configured to receive an input event from a receiving device.
And the updating module 25 is used for collecting input events by using the virtual input device, binding the collected input events to the virtual display device, and updating the display interface.
A connection module 31, configured to connect to the transmitting device through the wireless lan, and prepare to forward the input event.
A forwarding module 32 for forwarding the received input event to the transmitting device.
The virtual input device of the transmitting device 2 collects input events, binds the collected input events to the virtual display device, and updates the display interface.
The technical scheme provided by the invention has the following advantages: adopt wireless screen different showing different touching of throwing, very big improvement flexibility on the equipment layout, can realize single double screen freely switching, and have good interactivity, can satisfy diversified demand on the market.
It should be noted that, in the above embodiments, the included units are only divided according to functional logic, but are not limited to the above division as long as the corresponding functions can be realized; in addition, specific names of the functional units are only for convenience of distinguishing from each other, and are not used for limiting the protection scope of the present invention.
In addition, it can be understood by those skilled in the art that all or part of the steps in the method for implementing the embodiments described above can be implemented by instructing the relevant hardware through a program, and the corresponding program can be stored in a computer-readable storage medium, such as a ROM/RAM, a magnetic disk, or an optical disk.
It should be understood that the above-described embodiments of the present invention are merely examples for clearly illustrating the invention and are not to be construed as limiting the embodiments of the present invention, and that various other changes and modifications may be made by those skilled in the art based on the above description. All documents mentioned in this application are incorporated by reference into this application as if each were individually incorporated by reference.
Claims (10)
1. A method for wireless screen projection and different display and different touch, which is characterized by comprising the following steps:
the method comprises the steps of establishing a transmitting device and a receiving device into a wireless local area network;
the transmitting device creates a virtual display device and a virtual input device;
the receiving device is connected with the transmitting device through the wireless local area network and prepares to forward an input event;
the receiving device forwarding the received input event to the transmitting device; and
and the virtual input equipment of the transmitting device collects the input events, binds the collected input events to the virtual display equipment, and updates a display interface.
2. The method of wireless screen projection and iso-display touch as recited in claim 1, wherein after the step of the transmitting apparatus creating a virtual display device and a virtual input device, the method further comprises:
the transmitting device and the receiving device carry out negotiation and parameter configuration through a real-time stream transmission protocol.
3. The method of wireless screen projection iso-display iso-touch as recited in claim 1, wherein after the step of preparing to forward an input event, the method further comprises:
the transmitting device transmits audio data and video data to the receiving device via a real-time transport protocol.
4. The method of wireless screen projection and iso-display iso-touch as recited in claim 3, wherein after the step of updating the display interface, the method further comprises:
judging whether the wireless local area network is disconnected or not;
if the connection is not disconnected, switching to the step execution that the transmitting device transmits audio data and video data to the receiving device through a real-time transmission protocol;
if the connection is broken, the communication is ended.
5. A wireless screen-projection different-display different-touch system is characterized by comprising a transmitting device and a receiving device which are jointly built into a wireless local area network, wherein,
the transmitting device is used for creating a virtual display device and a virtual input device; and
the receiving device is used for connecting the transmitting device through the wireless local area network, preparing to forward an input event and forwarding the received input event to the transmitting device;
the virtual input device of the transmitting device collects the input events, binds the collected input events to the virtual display device, and updates a display interface.
6. The system of claim 5, wherein the transmitting device and the receiving device negotiate and configure parameters via a real-time streaming protocol.
7. The system of claim 5, wherein the transmitting device is further configured to transmit audio data and video data to the receiving device via a real-time transmission protocol.
8. The system for wireless screen projection and different display and different touch as claimed in claim 7, wherein the receiving device is further used for
Judging whether the wireless local area network is disconnected or not;
if the connection is not disconnected, continuing to receive the audio data and the video data transmitted by the transmitting device through the real-time transmission protocol;
if the connection is broken, the communication is ended.
9. A transmitting apparatus, wherein the transmitting apparatus and a corresponding receiving apparatus are jointly configured as a wireless local area network, the transmitting apparatus comprising:
the creating module is used for creating a virtual display device and a virtual input device;
the configuration module is used for carrying out negotiation and parameter configuration on the receiving device through a real-time streaming transmission protocol;
the transmitting module is used for transmitting audio data and video data to the receiving device through a real-time transmission protocol;
a receiving module for receiving an input event from the receiving device; and
and the updating module is used for collecting the input events by using the virtual input equipment, binding the collected input events to the virtual display equipment and updating a display interface.
10. A reception apparatus which constitutes a wireless local area network together with a corresponding transmission apparatus, which creates a virtual display device and a virtual input device and performs negotiation and parameter configuration with the reception apparatus by a real-time streaming protocol, comprising:
a connection module, configured to connect to the transmitting apparatus through the wireless lan, and prepare to forward an input event; and
a forwarding module for forwarding the received input event to the transmitting device;
the virtual input device of the transmitting device collects the input events, binds the collected input events to the virtual display device, and updates a display interface.
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| CN202011070249.1A CN114327321A (en) | 2020-09-30 | 2020-09-30 | Wireless screen projection different-display different-touch method and system thereof |
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