CN115278928A

CN115278928A - Display device, control device and data transmission method

Info

Publication number: CN115278928A
Application number: CN202210771143.7A
Authority: CN
Inventors: 周颖昕; 杨坤; 姜晓胜
Original assignee: Hisense Visual Technology Co Ltd
Current assignee: Hisense Visual Technology Co Ltd
Priority date: 2022-06-30
Filing date: 2022-06-30
Publication date: 2022-11-01

Abstract

The present disclosure relates to a display device, a control device, and a data transmission method, which are applied to the field of bluetooth technology, the display device including: a controller configured to: receiving target data sent by the control device through a connection isochronous stream CIS link between the display device and the control device, wherein the target data is generated by the control device according to a received user control instruction; sending a reply message to the control equipment through the CIS link, wherein the reply message is used for representing the received target data; acquiring target information corresponding to the user control instruction based on the target data; a display configured to: and displaying the target information. The flexibility of data transmission can be improved, and under the condition that a plurality of data need to be transmitted, the parallel transmission of the data can be realized, and the transmission efficiency is improved.

Description

Display device, control device and data transmission method

Technical Field

The embodiment of the application relates to Bluetooth technology. And more particularly, to a display apparatus, a control apparatus, and a data transmission method.

Background

Bluetooth communication between existing display equipment and control equipment is data transmission through Connection-oriented Asynchronous transmission (ACL) links, specifically, the control equipment sends data corresponding to a user control instruction to the display equipment through the ACL links, so as to control the display equipment.

However, since the data transmission on the ACL link is serial, the transmission efficiency is low when there are multiple data to be transmitted.

Disclosure of Invention

In order to solve the technical problem, the application provides a display device, a control device and a data transmission method, which can improve the flexibility of data transmission, and can realize parallel transmission of data and improve the transmission efficiency under the condition that a plurality of data need to be transmitted.

In a first aspect, an embodiment of the present application provides a display device, including:

a controller configured to: receiving target data sent by the control device through a connection isochronous stream CIS link between the display device and the control device, wherein the target data is generated by the control device according to a received user control instruction;

sending a reply message to the control equipment through the CIS link, wherein the reply message is used for representing the received target data;

acquiring target information corresponding to the user control instruction based on the target data;

a display configured to: and displaying the target information.

In a second aspect, an embodiment of the present application provides a control apparatus, including:

a controller configured to: receiving a user control instruction;

generating target data based on the user control instruction;

transmitting target data to the display device through a CIS link between the control device and the display device to enable the display device to display target information corresponding to the user control instruction based on the target data;

and receiving a reply message sent by the display device through the CIS link, wherein the reply message is used for representing that the display device has received the target data.

In a third aspect, the present application provides a data transmission method, applied to a display device, the method including:

receiving target data sent by the control equipment through a CIS link between the display equipment and the control equipment, wherein the target data is generated by the control equipment according to a received user control instruction;

and displaying the target information.

In a fourth aspect, the present application provides a data transmission method, which is applied to a control device, and includes:

receiving a user control instruction;

generating target data based on the user control instruction;

In a fifth aspect, the present application provides a computer-readable storage medium comprising: the computer-readable storage medium has stored thereon a computer program which, when executed by a processor, implements the data transmission method as shown in the third and fourth aspects.

In a sixth aspect, the present application provides a computer program product comprising: the computer program product, when run on a computer, causes the computer to implement the data transmission method as shown in the third and fourth aspects.

Compared with the prior art, the technical scheme provided by the embodiment of the application has the following advantages: in the embodiment of the application, the control device generates target data based on a user control instruction, and transmits the target data to the display device through a CIS link between the control device and the display device; the display device receives the target data sent by the control device through the CIS link, sends a reply message (the reply message is used for representing that the display device has received the target data) to the control device, acquires target information corresponding to the user control instruction based on the target data (the control device receives the reply message), and displays the target information. Because the CIS link is established on the basis of the ACL link, an ACL link and a CIS link which can be used for data transmission exist between the control equipment and the display equipment in the scheme, and compared with the prior art that data transmission can only be carried out through the ACL link, the CIS link is added on the basis of the ACL link, so that the flexibility of data transmission can be improved, and under the condition that a plurality of data need to be transmitted, the parallel transmission of the data can be realized, and the transmission efficiency is improved.

Drawings

In order to more clearly illustrate the embodiments of the present application or the implementation manner in the related art, a brief description will be given below of the drawings required for the description of the embodiments or the related art, and it is obvious that the drawings in the following description are some embodiments of the present application, and other drawings can be obtained by those skilled in the art according to the drawings.

FIG. 1 illustrates an operational scenario between a control device and a display device, in accordance with some embodiments;

fig. 2 illustrates a block diagram of a hardware configuration of the control apparatus 100 according to some embodiments;

fig. 3 illustrates a hardware configuration block diagram of the display apparatus 200 according to some embodiments;

FIG. 4 illustrates an interaction flow diagram of a control device with a display device, in accordance with some embodiments;

FIG. 5 illustrates a schematic diagram of ending a CIS event using a CIE flag, in accordance with some embodiments;

FIG. 6 illustrates a schematic diagram of a CIS PDU Header, according to some embodiments;

FIG. 7 illustrates one of the flow diagrams of a data transmission method according to some embodiments;

FIG. 8 illustrates a second flowchart of a data transmission method according to some embodiments;

FIG. 9 illustrates a third flowchart of a data transmission method according to some embodiments;

FIG. 10 shows a fourth flowchart of a data transmission method according to some embodiments;

FIG. 11 shows a fifth flowchart illustration of a method of data transmission, in accordance with some embodiments;

figure 12 illustrates one of the diagrams in which different transmission parameters affect the transmission result, in accordance with some embodiments;

figure 13 illustrates a second schematic diagram illustrating different transmission parameters affecting transmission results, in accordance with some embodiments;

fig. 14 illustrates a third diagram of different transmission parameters affecting transmission results, in accordance with some embodiments;

figure 15 illustrates a fourth diagram of different transmission parameters affecting transmission results, in accordance with some embodiments.

Detailed Description

To make the purpose and embodiments of the present application clearer, the following will clearly and completely describe the exemplary embodiments of the present application with reference to the attached drawings in the exemplary embodiments of the present application, and it is obvious that the described exemplary embodiments are only a part of the embodiments of the present application, and not all of the embodiments.

It should be noted that the brief descriptions of the terms in the present application are only for the convenience of understanding the embodiments described below, and are not intended to limit the embodiments of the present application. These terms should be understood in their ordinary and customary meaning unless otherwise indicated.

The terms "first," "second," "third," and the like in the description and claims of this application and in the foregoing drawings are used for distinguishing between similar or analogous objects or entities and are not necessarily intended to limit the order or sequence in which they are presented unless otherwise indicated. It is to be understood that the terms so used are interchangeable under appropriate circumstances, at least one being 1 or more.

The terms "comprises" and "comprising," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a product or apparatus that comprises a list of elements is not necessarily limited to all elements expressly listed, but may include other elements not expressly listed or inherent to such product or apparatus.

The display device provided by the embodiment of the present application may have various implementation forms, for example, the display device may be a television, a smart television, a laser projection device, a display (monitor), an electronic whiteboard (electronic whiteboard), an electronic desktop (electronic table), a mobile phone, a tablet computer, a notebook computer, a palm computer, a vehicle-mounted electronic device, and the like.

Fig. 1 is a schematic diagram of an operation scenario between a display device and a control device according to an embodiment, where the control device includes a smart device or a control apparatus. As shown in fig. 1, the user may operate the display device 200 through the smart device 300 or the control apparatus 100.

In some embodiments, the control apparatus 100 may be a remote controller, and the communication between the remote controller and the display device includes an infrared protocol communication or a bluetooth protocol communication, and other short-distance communication methods, and controls the display device 200 in a wireless or wired manner. The user may input a user instruction through a key on a remote controller, voice input, control panel input, etc., to control the display apparatus 200.

In some embodiments, the smart device 300 (e.g., mobile terminal, tablet, computer, laptop, etc.) may also be used to control the display device 200. For example, the display device 200 is controlled using an application program running on the smart device.

In some embodiments, the display device may not receive instructions using the smart device or control device described above, but rather receive user control through touch or gestures, or the like.

In some embodiments, the display device 200 may also be controlled in a manner other than the control apparatus 100 and the smart device 300, for example, the voice command control of the user may be directly received by a module configured inside the display device 200 to obtain a voice command, or may be received by a voice control device provided outside the display device 200.

In some embodiments, the display device 200 is also in data communication with a server 400. The display device 200 may be allowed to be communicatively connected through a Local Area Network (LAN), a Wireless Local Area Network (WLAN), and other networks. The server 400 may provide various contents and interactions to the display apparatus 200. The server 400 may be a cluster or a plurality of clusters, and may include one or more types of servers.

Fig. 2 exemplarily shows a block diagram of a configuration of the control apparatus 100 according to an exemplary embodiment. As shown in fig. 2, the control device 100 includes a controller 110, a communication interface 130, a user input/output interface 140, an external memory, and a power supply. The control apparatus 100 may receive an input operation instruction from a user and convert the operation instruction into an instruction recognizable and responsive by the display device 200, serving as an interaction intermediary between the user and the display device 200.

As shown in fig. 3, the display apparatus 200 includes at least one of a tuner demodulator 210, a communicator 220, a detector 230, an external device interface 240, a controller 250, a display 260, an audio output interface 270, a user interface 280, an external memory, and a power supply.

In some embodiments the controller comprises a processor, a video processor, an audio processor, a graphics processor, a RAM, a ROM, a first interface to an nth interface for input/output.

The display 260 includes a display screen component for presenting a picture, and a driving component for driving image display, a component for receiving an image signal from the controller output, performing display of video content, image content, and a menu manipulation interface, and a user manipulation UI interface.

The display 260 may be a liquid crystal display, an OLED display, and a projection display, and may also be a projection device and a projection screen.

The communicator 220 is a component for communicating with an external device or a server according to various communication protocol types. For example: the communicator may include at least one of a Wifi module, a bluetooth module, a wired ethernet module, and other network communication protocol chips or near field communication protocol chips, and an infrared receiver. The display apparatus 200 may establish transmission and reception of control signals and data signals with the external control device 100 or the server 400 through the communicator 220.

The user interface 280 may be used to receive control signals for controlling the apparatus 100 (e.g., an infrared remote control, etc.). It may also be used to directly receive an input operation instruction from a user and convert the operation instruction into an instruction recognizable and responsive by the display apparatus 200, which may be referred to as a user input interface.

The detector 230 is used to collect signals of the external environment or interaction with the outside. For example, detector 230 includes a light receiver, a sensor for collecting ambient light intensity; alternatively, the detector 230 includes an image collector, such as a camera, which may be used to collect external environment scenes, attributes of the user, or user interaction gestures, or the detector 230 includes a sound collector, such as a microphone, which is used to receive external sounds.

The external device interface 240 may include, but is not limited to, the following: high Definition Multimedia Interface (HDMI), analog or data high definition component input interface (component), composite video input interface (CVBS), USB input interface (USB), RGB port, and the like. Or may be a composite input/output interface formed by the plurality of interfaces.

The tuner demodulator 210 receives a broadcast television signal through wired or wireless reception and demodulates an audio/video signal, such as an EPG data signal, from a plurality of wireless or wired broadcast television signals.

In some embodiments, the controller 250 and the modem 210 may be located in different separate devices, that is, the modem 210 may also be located in an external device of the main device where the controller 250 is located, such as an external set-top box.

The controller 250 controls the operation of the display device and responds to the operation of the user through various software control programs stored in a memory (an internal memory or an external memory). The controller 250 controls the overall operation of the display apparatus 200. For example: in response to receiving a user command for selecting a UI object to be displayed on the display 260, the controller 250 may perform an operation related to the object selected by the user command.

In some embodiments the controller comprises at least one of a Central Processing Unit (CPU), a video processor, an audio processor, a Graphics Processing Unit (GPU), and Random Access Memory (RAM), a Read-Only Memory (ROM), first to nth interfaces for input/output, a communication Bus (Bus), and the like.

The RAM is also called a main memory, and is an internal memory that directly exchanges data with the controller. It can be read and written at any time (except for refreshing), and has high speed, and is usually used as a temporary data storage medium of an operating system or other programs in operation. The biggest difference between the method and the ROM is the volatility of data, namely, the stored data is lost once the power is cut off. RAM is used in computers and digital systems to temporarily store programs, data, and intermediate results. The ROM operates in a non-destructive read mode, only reading information that cannot be written. Information is fixed after being written once, and even if the power is turned off, the information is not lost, so that the information is also called a fixed memory.

A user may input a user command on a Graphical User Interface (GUI) displayed on the display 260, and the user input interface receives the user input command through the Graphical User Interface (GUI). Alternatively, the user may input the user command by inputting a specific sound or gesture, and the user input interface receives the user input command by recognizing the sound or gesture through the sensor.

A "user interface" is a media interface for interaction and information exchange between an application or operating system and a user that enables the conversion of the internal form of information to a form acceptable to the user. A common presentation form of a User Interface is a Graphical User Interface (GUI), which refers to a User Interface related to computer operations and displayed in a graphical manner. It may be an interface element such as an icon, a window, a control, etc. displayed in a display screen of the display device, where the control may include a visual interface element such as an icon, a button, a menu, a tab, a text box, a dialog box, a status bar, a navigation bar, a Widget, etc.

The display device provided by the embodiment of the application comprises: a display and a controller, wherein the controller corresponds to the controller 260 of fig. 3 described above. The control device in the embodiment of the present application may be the control apparatus 100 in fig. 1, and the display device may be the display device 200 in fig. 1.

An embodiment of the present application provides a display device, which includes: a controller and a display, the controller configured to: receiving target data sent by a control device through a Connected Isochronous Stream (CIS) link between a display device and the control device, wherein the target data is generated by the control device according to a received user control instruction; sending a reply message to the control equipment through the CIS link, wherein the reply message is used for representing the received target data; acquiring target information corresponding to the user control instruction based on the target data; the display is configured to: and displaying the target information.

An embodiment of the present application provides a control device, including: a controller configured to: receiving a user control instruction; generating target data based on the user control instruction; transmitting target data to the display device through a CIS link between the control device and the display device to enable the display device to display target information corresponding to the user control instruction based on the target data; and receiving a reply message sent by the display device through the CIS link, wherein the reply message is used for representing that the display device has received the target data.

It can be understood that the control device generates target data based on the user control instruction, transmits the target data to the display device through a CIS link between the control device and the display device, and the display device receives the target data transmitted by the control device through the CIS link, transmits a reply message (the reply message is used for representing that the display device has received the target data) to the control device, acquires target information corresponding to the user control instruction based on the target data, displays the target information, and receives the reply message by the control device.

It can be understood that the user control instruction may be a voice control instruction of the user, a key control instruction of the user, or another control instruction of the user, and the embodiment of the present application is not limited.

It is understood that the target data is generated based on a complete user control command, and the target data includes at least one data packet, and specifically, according to the size of the target data and the length of each data packet, it is determined how many data packets the target data needs to be sent.

It can be understood that the target data is sent to the display device through the CIS link between the control device and the display device, specifically, the control device divides the target data into at least one data packet and sends the data packet to the display device, the display device receives a message that each data packet replies to the received data packet, and the reply message sent by the display device to the control device in this embodiment of the present application is used to characterize that the display device has completed receiving the target data.

It is understood that the CIS is a data stream transmission channel established at a fixed time Interval (ISO Interval) between connected devices on the basis of an established ACL link, wherein the ACL link and the CIS link are both low power consumption bluetooth transmission links.

It is to be understood that displaying the target information may include at least one of: the interface is updated (for example, the interface is switched), pop-up messages are displayed (for example, one window pops up on the current interface or another interface is displayed in a floating manner on the current interface), the focus of the display device is moved (for example, the focus of the display device is moved from one control to another control), and the display target information is specifically determined according to the actual situation, which is not limited in the embodiment of the present application.

And the object at which the focus is positioned is the object currently in the selected state.

Illustratively, taking the display device as a television and the control device as a remote controller as an example, if the user control instruction is to switch from channel 1 to channel 2, the display target information is to update the interface of channel 1 to the interface of channel 2; if the control instruction of the user is a voice control instruction and the content of the instruction is 'today weather', displaying target information, namely displaying information about the today weather condition on a pop-up window of the current interface; if the control instruction of the user is a voice control instruction and the content of the instruction is 'xxx series', displaying the target information by displaying all information related to 'xxx series' in a floating manner on the current interface; and if the control 1 is selected in the current interface and the control 2 is selected in the control instruction of the user, displaying that the target information is the focus and moving from the control 1 to the control 2, and selecting the control 2.

Compared with the prior art, the technical scheme provided by the embodiment of the application has the following advantages: in the embodiment of the application, the control equipment generates target data based on a user control instruction, and sends the target data to the display equipment through a CIS link between the control equipment and the display equipment; the display device receives the target data sent by the control device through the CIS link, sends a reply message (the reply message is used for representing that the display device has received the target data) to the control device, acquires target information corresponding to the user control instruction based on the target data (the control device receives the reply message), and displays the target information. Because the CIS link is established on the basis of the ACL link, an ACL link and a CIS link which can be used for data transmission exist between the control equipment and the display equipment in the scheme, and compared with the prior art that data transmission can only be carried out through the ACL link, the CIS link is added on the basis of the ACL link, so that the flexibility of data transmission can be improved, and under the condition that a plurality of data need to be transmitted, the parallel transmission of the data can be realized, and the transmission efficiency is improved.

In some embodiments of the present application, in a case where an ACL link between the control device and the display device is occupied, the target data is transmitted to the display device through the CIS link.

It will be appreciated that the link on which the target data is sent may be determined based on whether the ACL link is occupied. For example, in the case where an ACL link between the control device and the display device is occupied, target data is transmitted to the display device through the CIS link; and in the case that the ACL link between the control device and the display device is not occupied, transmitting the target data to the display device through the ACL link. The link to transmit the target data may also be determined according to whether the link is occupied. For example, when an ACL link between the control device and the display device is occupied and a CIS link is not occupied, target data is transmitted to the display device through the CIS link; sending target data to the display equipment through the ACL link under the condition that the ACL link between the control equipment and the display equipment is not occupied and the CIS link is occupied; and under the condition that an ACL link between the control equipment and the display equipment is unoccupied and a CIS link is unoccupied, transmitting the target data to the display equipment through any link of the ACL link or the CIS link.

In the embodiment of the application, under the condition that an ACL link between control equipment and display equipment is occupied, target data is sent to the display equipment through a CIS link; therefore, when the ACL link is in use, the target data is transmitted through the CIS link, so that the parallel transmission of the data can be realized, the time is saved, and the transmission efficiency is further improved.

In some embodiments of the present application, in a case where the user control instruction is a voice control instruction, the target data is transmitted to the display device through the CIS link.

It can be understood that, according to whether the control instruction of the user is a voice control instruction or a key control instruction, the link for sending the target data is determined: under the condition that the user control instruction is a voice control instruction, transmitting target data to display equipment through a CIS link; and when the user control instruction is other control instructions (such as a key control instruction) and the like, sending the target data to the display equipment through the ACL link.

In the embodiment of the application, the target data is sent to the display device through the CIS link under the condition that the user control instruction is the voice control instruction, and the target data is sent to the display device through the ACL link under the condition that the user control instruction is other control instructions. In the data transmitted between the display device and the control device, the voice data has the highest requirement on the link and consumes the most resources, so that the voice data consuming the most resources is transmitted through the CIS link, and the ACL link does not need to be established or maintained according to the configuration of the transmitted voice data having the highest requirement on the link, thereby saving a large amount of resources, simultaneously realizing the parallel transmission of the target data generated by the voice control command and other control commands, and improving the transmission efficiency.

In some embodiments of the present application, before the control device sends the target data to the display device, the control device first determines whether a CIS link exists between the control device and the display device. In the case where a CIS link exists between the control device and the display device, the target data is transmitted to the display device through the CIS link, and the display device receives the target data. Under the condition that a CIS link does not exist between the control device and the display device, the control device sends a request message to the display device, wherein the request message is used for requesting the establishment of the CIS link; the display device receives the request message and sends a response message to the control device, the response message is used for representing that the CIS link is established, the control device receives the response message sent by the display device, the CIS link is established between the control device and the display device based on the response message, and the target data are sent to the display device through the CIS link.

It can be understood that the CIS link may be established before the control device and the display device perform communication, or may be established when data needs to be transmitted through the CIS link, and specifically may be determined according to actual needs, which is not limited in the embodiment of the present application.

In the embodiment of the application, before the control device sends the target data to the display device, the control device firstly judges whether a CIS link exists between the control device and the display device, sends the target data to the display device through the CIS link under the condition that the CIS link exists between the control device and the display device, receives the target data, and sends a request message to the display device under the condition that the CIS link does not exist between the control device and the display device, wherein the request message is used for requesting to establish the CIS link; the display device receives the request message and sends a response message to the control device, the response message is used for representing that the CIS link is established, the control device receives the response message sent by the display device, the CIS link is established between the control device and the display device based on the response message, and the target data are sent to the display device through the CIS link. Therefore, the establishment time of the CIS link can be flexibly selected, the CIS link can be established before the control device communicates with the display device, and the CIS link can be established again when the CIS link needs to be used.

In some embodiments of the application, the user control instruction is a voice control instruction, and the display device resets the timer and starts the timer to time after receiving the reply message sent by the display device through the CIS link; the control equipment disconnects the CIS link under the condition that the timer is overtime and does not receive a new voice control instruction; and stopping the timer for timing in the case that a new voice control instruction is received before the timer is overtime.

It can be understood that after receiving the reply message sent by the display device, that is, the target data generated based on the voice control instruction of the user is sent to the display device, the display device has received the reply message, the timer is reset, the timer is started to time, and the control device stops the time counting when receiving a new voice control instruction of the user before the timer is overtime; when the timer is overtime and does not receive a new voice control instruction of a user, the control equipment sends an instruction for disconnecting the CIS link to the display equipment and releases resources used for maintaining the CIS link in the control equipment; and the display device receives an instruction sent by the control device for disconnecting the CIS link and releases resources used by the CIS link in the display device.

It can be understood that the total timing duration of the timer can be set to be a preset duration, whether the timer is overtime can be determined according to whether the timing duration of the timer is equal to the preset duration, when the timing duration of the timer is equal to the preset duration, the timer is overtime is determined, and when the timing duration of the timer is less than the preset duration, the timer is determined not to be overtime; the preset duration may be a fixed value, and the preset duration may also be dynamically adjusted according to an interval duration of the user history using the voice control instruction, and specifically, the embodiment of the present application is not limited.

Illustratively, as shown in fig. 4, a flowchart for determining whether the CIS link needs to be disconnected using a timer includes steps 401 to 413.

401. The control device receives a voice control instruction of a user.

402. The control device determines whether a CIS link exists.

If yes, go to step 403, otherwise go to step 404.

403. The control device stops the timer.

404. The control device sends a request message to the display device.

Wherein the request message is for requesting establishment of a CIS link.

405. The display device receives the request message sent by the control device.

406. And the display equipment sends a response message to the control equipment according to the request message.

407. And the control equipment receives the response message sent by the display equipment.

408. The control device establishes a CIS link based on the response message.

409. The control device generates target data based on the voice control instruction.

410. The control device transmits the target data to the display device through the CIS link.

411. And the display equipment receives the target data sent by the control equipment.

412. The display device acquires target information corresponding to the user instruction based on the target data.

413. The display device displays the target information.

414. The display device sends a reply message to the control device through the CIS link.

415. And the control equipment receives the reply message sent by the display equipment.

416. The control device resets and starts a timer.

417. The control device determines whether a new voice control command is received before the timer expires.

If yes, step 403 is performed, otherwise step 418 is performed.

418. And the control device sends a CIS link disconnection instruction to the display device and releases resources.

419. And the display device receives a CIS link disconnection command sent by the control device and releases resources.

It should be noted that the execution sequence of steps 401 to 419 is determined according to actual needs, and the embodiment of the present application is not limited. For example, step 402 and step 409 may be performed simultaneously, or step 409 may be performed first, and then step 402 may be performed.

In the embodiment of the application, the user control instruction is a voice control instruction, and the display device resets the timer and starts the timer to time after receiving the reply message sent by the display device through the CIS link; the control equipment disconnects the CIS link under the condition that the timer is overtime and does not receive a new voice control instruction; and stopping the timer for timing in the case that a new voice control instruction is received before the timer is overtime. Because the frequency of using the voice control function of the control device by the user is relatively low, resources are wasted when the CIS link is idle for a long time, and therefore, by setting the timer, the CIS link can be disconnected when the control device does not receive the voice control instruction of the user under the condition that the timer is overtime, and therefore, the idle waste of the resources can be reduced.

In some embodiments of the present application, the control device sends the target data to the display device through at least one CIS event on the CIS link, where each CIS event includes at least one CIS sub-event; the method comprises the steps that a display device receives target data through at least one CIS event on a CIS link, the display device sends a reply message to a control device, the control device sends an indication message to the display device after receiving the reply message sent by the display device, the indication message is used for indicating that the target data corresponding to a user control instruction is sent completely, the display device receives the indication message, and the last CIS event in the at least one CIS event is closed according to the indication message, so that the display device does not monitor the CIS sub-event of the last CIS event any more.

It can be understood that, on the CIS link, one CIS event has a fixed interval duration, and the interval duration can be adjusted according to actual needs; the CIS event comprises at least one CIS sub-event, each sub-event also has a fixed interval duration, and the interval duration of each sub-event can be adjusted according to actual needs.

Typically, a data packet is transmitted over a CIS link via a CIS sub-event.

It can be understood that one CIS link includes at least one CIS event, each CIS event includes at least one CIS sub-event, each sub-event is used for transmitting one data packet, as shown in fig. 5, one CIS link includes N (N is an integer greater than 0) CIS events, where CIS event 1 and CIS event N each include 4 CIS sub-events, each CIS event not shown between CIS event 1 and CIS event N also includes 4 CIS sub-events, and each CIS sub-event is used for transmitting one data packet, therefore, at most 4 data packets can be transmitted in any CIS event on the CIS link, specifically, at most 4 data packets can be transmitted in each CIS event, which can be understood as being influenced by other factors (such as the number of sudden events, the congestion condition of the network environment, and the like), each CIS event can actually transmit 1, 2, 3, or 4 data packets, for example, one CIS event in fig. 12 can be used for transmitting one CIS data packet, one CIS event in fig. 13 can be used for transmitting 2 data packets, and one CIS event in fig. 14 and fig. 15 can be used for transmitting 4 data packets.

It can be understood that the target data is divided into at least one data packet, the control device sends the at least one data packet to the display device through corresponding at least one CIS sub-event (one data packet corresponds to one CIS sub-event), the display device sends a reply message to the control device through the CIS sub-event within the interval duration of each sub-event, after the control device receives the reply message of the data packet corresponding to the last CIS sub-event (i.e., the control device receives the reply message of the last data packet in the target data), the control device sends an indication message to the display device, after receiving the indication message, the display device closes the CIS event in which the last CIS sub-event is located, and then within the duration remaining in the interval duration of the CIS event, the display device does not continue to monitor the sub-event in the last CIS event in which the data packet is not sent (i.e., the display device does not continue to monitor the sub-event after the sub-event in which the indication message is received in the last CIS event) until the next CIS event, and the display device continues to monitor the sub-event in the next CIS event.

Exemplarily, as shown in fig. 5, to close the CIS event schematic diagram in advance by using the CIE flag, in the nth CIS (CIS N event) event, after the sending end finishes sending Data (Data), and after receiving the Ack returned by the receiving end, the sending end sends a Data packet with CIE of 1, and after the receiving end receives the Data packet with CIE of 1, the CIS N event is ended in advance, so that in the remaining duration of the CIS sub-event 2, the display device does not need to monitor the sub-event within the duration, within the entire interval duration of the CIS sub-event 3 and the CIS sub-event 4, that is, within the duration from the completion of sending the CIE by the sub-event 2 of the CIS N event to the arrival of the next CIS event (the shaded area indicated by reference numeral 600), and therefore, within the duration, resources can be allocated to other operations.

It is to be understood that the indication message is used to indicate that the target data corresponding to the user control instruction has been completely transmitted, and the display device, upon receiving the indication message, may determine that the target data has been completely transmitted, and thus may close the last CIS event used to transmit the target data. The indication message may include information that the target data has been completely transmitted, or a flag bit indicating that the current CIS event (the last CIS event) is closed, or other contents, which may be specifically determined according to actual needs, which is not limited in the embodiment of the present application.

Illustratively, as shown in fig. 6, the packet Header (Connected Isochronous Protocol Data Unit Header, CIS PDU Header) of the CIS Protocol Data Unit is shown, wherein a CIE flag bit is set to 1, that is, the current CIS Event is turned off, and thus, a packet with CIE of 1 may be used as the indication message.

In the embodiment of the application, the control device sends target data to the display device through at least one CIS event on a CIS link, wherein each CIS event comprises at least one CIS sub-event; the method comprises the steps that a display device receives target data through at least one CIS event on a CIS link, the display device sends a reply message to a control device, the control device sends an indication message to the display device after receiving the reply message sent by the display device, the indication message is used for indicating that the target data corresponding to a user control instruction is sent completely, the display device receives the indication message, and the last CIS event in the at least one CIS event is closed according to the indication message, so that the display device does not monitor the CIS sub-event of the last CIS event any more. After the control device receives the reply message of the display device and determines that the display device finishes receiving the target data, an indication message is sent to the display device to indicate that the target data corresponding to the user control instruction is sent completely, the CIS event can be closed, and after the display device receives the indication message, the current CIS event (namely the last CIS event) is closed, so that the display device does not need to monitor the subsequent CIS sub-event of the CIS event, namely the CIS event is ended in advance.

In the embodiment of the present application, a data transmission method is provided, as shown in fig. 7, the method includes the following steps 101 to 108.

101. The control device receives a user control instruction.

102. The control device generates target data based on the user control instruction.

103. The control device transmits the target data to the display device through a CIS link between the control device and the display device.

104. Through a CIS link between the display device and the control device, the display device receives target data transmitted by the control device.

105. The display device acquires target information corresponding to the user control instruction based on the target data.

106. And a display device which displays the target information.

107. Through the CIS link, the display device sends a reply message to the control device, wherein the reply message is used for representing the received target data;

108. and the control device receives a reply message sent by the display device through the CIS link.

In some embodiments of the present application, with reference to fig. 7, as shown in fig. 8, the step 103 may be specifically implemented by the following step 103a or step 103 b.

103a, in the case where the ACL link between the control device and the display device is occupied, the control device transmits the target data to the display device through the CIS link.

103b, when the user control instruction is a voice control instruction, the control device sends the target data to the display device through the CIS link.

In the embodiment of the application, under the condition that an ACL link between control equipment and display equipment is occupied, target data is sent to the display equipment through a CIS link; or, in the case that the user control instruction is a voice control instruction, the target data is sent to the display device through the CIS link, so that when the ACL link is in use, the target data is transmitted through the CIS link, or the voice data consuming Bluetooth resources comparatively is transmitted through the CIS link, and the parallel transmission of data can be realized, and the data transmission efficiency is improved.

In some embodiments of the present application, referring to fig. 7, as shown in fig. 9, the step 103 may be specifically implemented by the following steps 103c to 103 i.

103c, the control device judges whether a CIS link exists between the control device and the display device.

In case a CIS link exists between the control device and the display device, step 103i is performed, otherwise step 103d is performed.

103d, under the condition that the CIS link does not exist between the control device and the display device, the control device sends a request message to the display device, wherein the request message is used for requesting the establishment of the CIS link.

103e, the display device receives the request message sent by the control device.

103f, the display device sends a response message to the control device according to the request message, wherein the response message is used for representing that the CIS link is established in an agreeing manner.

103g, the control device receives a response message sent by the display device, wherein the response message is used for representing that the display device agrees to establish the CIS link.

103h, the control device establishes a CIS link between the control device and the display device based on the response message.

103i, the control device sends the target data to the display device through the CIS link.

In the embodiment of the application, before the control device sends the target data to the display device, the control device firstly judges whether a CIS link exists between the control device and the display device, under the condition that the CIS link exists between the control device and the display device, the target data is sent to the display device through the CIS link, the display device receives the target data, and under the condition that the CIS link does not exist between the control device and the display device, the control device sends a request message to the display device, wherein the request message is used for requesting to establish the CIS link; the display device receives the request message and sends a response message to the control device, the response message is used for representing that the CIS link is established, the control device receives the response message sent by the display device, the CIS link is established between the control device and the display device based on the response message, and the target data are sent to the display device through the CIS link. Therefore, the establishment time of the CIS link can be flexibly selected, the CIS link can be established before the control device communicates with the display device, and the CIS link can be established again when the CIS link needs to be used.

In some embodiments of the present application, the user control command is a voice control command, and as shown in fig. 10 in combination with fig. 7, after step 108, the data transmission method in the embodiments of the present application further includes step 109, step 110, and step 110a, that is, step 110b.

109. The control equipment resets the timer and starts the timer to count time.

110. The control device determines whether a new voice control command is received before the timer expires.

If a new voice control command is received, step 110b is performed, otherwise step 110a is performed.

110a, under the condition that the timer is overtime and no new voice control instruction is received, the CIS link is disconnected.

110b, stopping the timer when a new voice control command is received before the timer times out.

In the embodiment of the application, the user control instruction is a voice control instruction, and the display device resets the timer and starts the timer to time after receiving the reply message sent by the display device through the CIS link; the control equipment disconnects the CIS link under the condition that the timer is overtime and does not receive a new voice control instruction; and stopping the timer for timing in the case that a new voice control instruction is received before the timer is overtime. Because the frequency of the voice control instruction of the user using the control device is relatively low, resources are wasted when the CIS link is idle for a long time, and therefore, by setting the timer, the CIS link can be disconnected when the control device does not receive the voice control instruction of the user under the condition that the timer is overtime, and therefore, the idle waste of the resources can be reduced.

In some embodiments of the present application, with reference to fig. 7, as shown in fig. 11, the step 103 may be specifically implemented by the following step 103j, the step 104 may be implemented by the following step 104a, and after the step 108, the data transmission method according to the embodiments of the present application further includes the following steps 111 to 113.

103j, the control device sends the target data to the display device through at least one CIS event on the CIS link, wherein each CIS event comprises at least one CIS sub-event.

104a, the display device receives the target data through at least one CIS event on the CIS link.

111. And the control equipment sends an indication message to the display equipment, wherein the indication message is used for indicating that the target data corresponding to the user control instruction is sent completely.

112. The display device receives the indication message sent by the control device.

113. And the display device closes the last CIS event in the at least one CIS event according to the indication message.

And after the display device closes the last CIS event in the at least one CIS event, the display device does not monitor the CIS sub-event of the last CIS event any more.

In some embodiments of the present application, in the case of no congestion in the network environment, the transmission parameter of the CIS link is adjusted to the first target parameter; under the condition that the network environment is congested, adjusting the transmission parameters of the CIS link to second target parameters; the transmission parameters of the CIS link include at least one of: the number of Bursts (BN), the Number of Subevents (NSE), and the refresh timeout (FT), the NSE in the first target parameter is greater than the NSE in the second target parameter, the BN in the first target parameter is greater than the BN in the second target parameter, and the FT in the first target parameter is less than the FT in the second target parameter. BN is used for indicating the number of different data packets allowed to be transmitted in one CIS event, NSE is used for indicating the number of sub-events allowed to exist at most in one CIS event, and FT is used for indicating that the same sub-event is allowed to be transmitted in FT events at most.

It is understood that in the case of no congestion in the network environment, which indicates that the network environment is better, the transmission rate of data can be increased by increasing NSE, and/or increasing BN, and/or decreasing FT.

Illustratively, the example is described in which a network environment is congestion-free, and three Protocol Data Units (PDUs), i.e. Data packets, need to be transmitted, and each PDU is sent once to receive an Ack (reply message), where NSE =4 and ft =1, i.e. there are at most 4 CIS sub-events in one CIS event, and at most one CIS event is allowed to be sent in each CIS sub-event. As shown in fig. 12, the transmission rate is increased by changing BN, where BN =1, only one different PDU is allowed to be transmitted in one CIS event, then a PDU corresponding to 0 is transmitted in a first CIS event, a PDU corresponding to 1 is transmitted in a second PDU, and a PDU corresponding to 2 is transmitted in a third CIS event, so that the number of CIS events required to complete transmission of three PDUs, i.e., 0, 1, and 2, is 3 (i.e., 3 interval durations are required); as shown in fig. 13, BN =2, two different PDUs are allowed to be transmitted in one CIS event, then the PDUs corresponding to 0 and 1 may be transmitted in the first CIS event, and the PDU corresponding to 2 is transmitted in the next CIS event, so that the number of CIS events required to complete transmission of three PDUs is 2 (i.e. 2 interval durations are required), and thus it can be known that BN is increased from 1 to 2, and the same 3 PDUs are transmitted, and fig. 13 has one less CIS event than fig. 12, thereby saving the interval duration of one CIS event, saving time, and improving transmission efficiency.

It can be understood that in the case of network environment congestion, which indicates that the network environment is poor, the packet loss rate can be reduced by decreasing NSE and/or decreasing BN and/or increasing FT, and the transmission time can be saved as much as possible.

Illustratively, taking the case that the network environment is congested and four PDUs need to be transmitted, each PDU needs to be sent 3 times, where NSE =4 and bn =2, that is, there are 4 CIS sub-events at most for one CIS event, and at most two different data packets are allowed to be sent in each CIS event. As shown in fig. 14, the packet loss rate is reduced by changing FT, where FT =1, each CIS sub-event is only allowed to be sent in one CIS event, then a PDU corresponding to 0 sends a response received 3 times, a PDU corresponding to 1 sends a response not received once in a first CIS event, but cannot continue to be sent in a second CIS event, so that a PDU corresponding to 1 loses a packet, a PDU corresponding to 2 sends a response received 3 times in a second CIS event, and a PDU corresponding to 3 sends a response not received once in a second CIS event, but cannot continue to be sent in a third CIS event, so that a PDU corresponding to 3 loses a packet, so that the number of CIS events required for completing transmission of 4 PDUs corresponding to 0, 1, 2, and 3 is 2 (i.e., 2 interval durations are required), but both the 1 st PDU and the 3 rd PDU are lost, and the packet loss rate is 50%. As shown in fig. 15, FT =2, each CIS sub-event is allowed to be sent in two CIS events, then, a PDU corresponding to 0 sends a response received 3 times, a PDU corresponding to 1 sends a response not received once in a first CIS event, a response received twice continues to be sent in a second CIS event, a PDU corresponding to 2 sends a response not received 2 times in a second CIS event, a response received once continues to be sent in a third CIS event, and a PDU corresponding to 3 sends a response received three times in a third CIS event, then, the number of CIS events required for 4 PDUs corresponding to 0, 1, 2, and 3 to be transmitted is 3 (that is, 3 interval durations are required), but all PDUs are transmitted completely without packet loss; therefore, FT is increased from 1 to 2, and the same 4 PDUs are transmitted, and the packet loss rate in fig. 14 is 50%, and the packet loss rate is reduced because no packet is lost in fig. 15.

In the embodiment of the application, under the condition that a network environment is not congested, the transmission parameter of a CIS link is adjusted to a first target parameter; under the condition that the network environment is congested, adjusting the transmission parameters of the CIS link to second target parameters; the transmission parameters of the CIS link include at least one of: the number of bursts BN, the number of sub-events NSE and the refresh timeout FT are determined, the NSE in the first target parameter is larger than the NSE in the second target parameter, the BN in the first target parameter is larger than the BN in the second target parameter, and the FT in the first target parameter is smaller than the FT in the second target parameter. Therefore, the data transmission efficiency can be improved under the condition of better network environment, and the packet loss rate in the data transmission process is reduced under the condition of poorer network environment.

The embodiment of the present invention further provides a computer-readable storage medium, where a computer program is stored on the computer-readable storage medium, and when the computer program is executed by a processor, the computer program implements each process executed by the data transmission method, and can achieve the same technical effect, and in order to avoid repetition, details are not repeated here.

The computer-readable storage medium may be a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk.

The present invention provides a computer program product comprising: when the computer program product runs on a computer, the computer is caused to implement the data transmission method described above.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, and not to limit the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and these modifications or substitutions do not depart from the scope of the technical solutions of the embodiments of the present application.

The foregoing description, for purposes of explanation, has been presented in conjunction with specific embodiments. However, the illustrative discussions above are not intended to be exhaustive or to limit the embodiments to the precise forms disclosed above. Many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles and the practical application, to thereby enable others skilled in the art to best utilize the embodiments and various embodiments with various modifications as are suited to the particular use contemplated.

Claims

1. A display device characterized in that the display device is controlled by a control device, the display device comprising:

a controller configured to: receiving target data sent by the control device through a connected isochronous stream CIS link between the display device and the control device, wherein the target data is generated by the control device according to a received user control instruction;

sending a reply message to the control device through the CIS link, wherein the reply message is used for representing that the target data is received;

a display configured to: and displaying the target information.

2. The display device according to claim 1, wherein the controller is further configured to:

before receiving target data sent by the control device through a CIS link between the display device and the control device, receiving a request message sent by the control device under the condition that the control device determines that the CIS link does not exist between the control device and the display device, wherein the request message is used for requesting to establish the CIS link;

and sending a response message to the control device according to the request message, wherein the response message is used for representing that the CIS link is agreed to be established.

3. The display device of claim 1, wherein the controller is specifically configured to:

receiving the target data through at least one CIS event over the CIS link, each CIS event comprising at least one CIS sub-event;

the controller further configured to:

after the reply message is sent to the control equipment, receiving an indication message sent by the control equipment, wherein the indication message is used for indicating that target data corresponding to the user control instruction is sent completely;

closing a last CIS event of the at least one CIS event according to the indication message, so that the display device no longer monitors CIS sub-events of the last CIS event.

4. A control apparatus for controlling a display apparatus, the control apparatus comprising:

a controller configured to: receiving a user control instruction;

generating target data based on the user control instruction;

transmitting the target data to the display device through a CIS link between the control device and the display device, so that the display device displays target information corresponding to the user control instruction based on the target data;

5. The control device according to claim 4, characterized in that the controller is specifically configured to:

sending the target data to the display device through the CIS link when a connection-oriented asynchronous transfer ACL link between the control device and the display device is occupied;

or,

and under the condition that the user control instruction is a voice control instruction, transmitting the target data to the display device through the CIS link.

6. The control device according to claim 4, wherein the controller is specifically configured to:

judging whether the CIS link exists between the control device and the display device;

transmitting the target data to the display device through the CIS link in a case where the CIS link exists between the control device and the display device;

transmitting a request message to the display device in case that the CIS link does not exist between the control device and the display device, the request message being for requesting establishment of the CIS link;

receiving a response message sent by the display device, wherein the response message is used for representing that the display device agrees to establish the CIS link;

establishing the CIS link between the control device and the display device based on the response message;

and transmitting the target data to the display device through the CIS link.

7. The control device of claim 4, wherein the user control instruction is a voice control instruction, the controller further configured to:

after the reply message sent by the display equipment is received through the CIS link, resetting a timer and starting the timer for timing;

disconnecting the CIS link under the condition that a new voice control instruction is not received when the timer is overtime;

and stopping the timer for timing under the condition that a new voice control instruction is received before the timer is overtime.

8. The control device according to any one of claims 4 to 7, characterized in that the controller is specifically configured to:

transmitting the target data to the display device through at least one CIS event over the CIS link, each CIS event comprising at least one CIS sub-event;

the controller further configured to:

and after receiving a reply message sent by the display device through the CIS link, sending an indication message to the display device, wherein the indication message is used for indicating that target data corresponding to the user control instruction is sent completely, and the indication message is used for closing the last CIS event in the at least one CIS event by the display device, so that the display device does not monitor the CIS sub-event of the last CIS event any more.

9. A data transmission method is applied to a display device, and comprises the following steps:

receiving target data sent by a control device through a CIS link between the display device and the control device, wherein the target data is generated by the control device according to a received user control instruction;

and displaying the target information.

10. A data transmission method is applied to a control device, and comprises the following steps:

receiving a user control instruction;

generating target data based on the user control instruction;

transmitting the target data to a display device through a CIS link between the control device and the display device, so that the display device displays target information corresponding to the user control instruction based on the target data;