CN111918257A - Head-mounted display device, data transmission method thereof and readable storage medium - Google Patents
Head-mounted display device, data transmission method thereof and readable storage medium Download PDFInfo
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- H—ELECTRICITY
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- H04W4/80—Services using short range communication, e.g. near-field communication [NFC], radio-frequency identification [RFID] or low energy communication
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- H04L67/131—Protocols for games, networked simulations or virtual reality
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Abstract
The invention discloses a data transmission method, which comprises the following steps: transmitting data request information to a first external head-mounted display device through near field communication; receiving target data sent by the first external head-mounted display device through the near field communication; the target data is generated by the first external head-mounted display device according to the currently played multimedia data of the first external head-mounted display device; and acquiring and playing multimedia data corresponding to the target data. The invention also discloses a head-mounted display device and a readable storage medium. The invention aims to improve the convenience of a user of the head-mounted display equipment for acquiring multimedia resources in other head-mounted display equipment.
Description
Technical Field
The invention relates to the technical field of intelligent equipment, in particular to a data transmission method, head-mounted display equipment and a readable storage medium.
Background
With the increasing abundance of virtual reality contents, the application of virtual reality technology in daily life is more and more extensive. Among them, the head-mounted display device is the most developed among the virtual reality technologies.
At present, if a user wearing a display device wants to acquire multimedia data from other devices for playing, the user can only know the information of the multimedia data and then automatically search for corresponding multimedia resources and download the multimedia resources, which is cumbersome to operate and very inconvenient.
Disclosure of Invention
The invention mainly aims to provide a data transmission method, aiming at improving the convenience of a user of a head-mounted display device for acquiring multimedia resources in other head-mounted display devices.
In order to achieve the above object, the present invention provides a data transmission method applied to a head-mounted display device, the data transmission method including the steps of:
transmitting data request information to a first external head-mounted display device through near field communication;
receiving target data sent by the first external head-mounted display device through the near field communication; the target data is generated by the first external head-mounted display device according to the currently played multimedia data of the first external head-mounted display device;
and determining and playing the multimedia data corresponding to the target data.
Optionally, before the step of receiving target data sent by the first external head-mounted display device through the near field communication, the method further includes:
acquiring the signal intensity of the near field communication;
when the signal intensity is larger than or equal to a set intensity threshold value, the step of receiving the target data sent by the first external head-mounted display equipment through the near field communication is executed.
Optionally, after the step of acquiring the signal strength of the near field communication, the method further includes:
when the signal intensity is smaller than the set intensity threshold value, sending a first Bluetooth address to the first external head-mounted display device through the near field communication, and receiving a second Bluetooth address sent by the first external head-mounted display device through the near field communication; the first Bluetooth address is a Bluetooth address of a first terminal connected with the head-mounted display device, and the second Bluetooth address is a Bluetooth address of a second terminal connected with the first external head-mounted display device;
sending the second Bluetooth address to the first terminal, so that the first terminal is in Bluetooth communication connection with the second terminal according to the first Bluetooth address and the second Bluetooth address, and acquires target data sent by the second terminal through the Bluetooth communication connection; the first terminal is used for sending the multimedia data corresponding to the target data to target equipment when receiving the target data, and the target equipment is a sender of the second Bluetooth address;
and receiving and playing the returned multimedia data.
Optionally, the determining and playing the multimedia data corresponding to the target data includes:
when the target data is multimedia data, playing the target data;
when the target data is identification information of the multimedia data, sending the identification information to a connected third terminal; the third terminal is used for searching corresponding multimedia data according to the received identification information and sending the searched multimedia data to the sender of the identification information;
and receiving and playing the multimedia data returned based on the identification information.
In addition, in order to achieve the above object, the present application also proposes a data transmission method applied to a head-mounted display device, the data transmission method including the steps of:
reading currently played multimedia data when receiving data request information of a second external head-mounted display device based on near field communication;
generating target data to be transmitted according to the multimedia data;
sending the target data to the second external head-mounted display device through the near field communication.
Optionally, before the step of sending the target data to the second external head-mounted display device through the near field communication, the method further includes:
acquiring the signal intensity of the near field communication;
when the signal intensity is greater than or equal to a set intensity threshold, performing the step of sending the target data to the second external head-mounted display device by the near field communication.
Optionally, after the step of acquiring the signal strength of the near field communication, the method further includes:
when the signal intensity is smaller than the set intensity threshold value, sending a third Bluetooth address to the second external head-mounted display device through the near field communication, and receiving a fourth Bluetooth address sent by the second external head-mounted display device through the near field communication; the third Bluetooth address is a Bluetooth address of a fourth terminal connected with the head-mounted display device, and the fourth Bluetooth address is a Bluetooth address of a fifth terminal connected with a second external head-mounted display device;
sending the fourth Bluetooth address to the fourth terminal, so that the fourth terminal is in Bluetooth communication connection with the fourth terminal according to the third Bluetooth address and the fourth Bluetooth address and sends the target data to the fifth terminal through the Bluetooth communication connection,
and the fifth terminal is used for sending the multimedia data corresponding to the target data to the second external head-mounted display equipment when receiving the target data.
Optionally, before the step of reading the currently played multimedia data, the method further includes:
judging whether the data request information is matched with a set protocol or not;
if the multimedia data are matched with the multimedia data, the step of reading the currently played multimedia data is executed;
and if not, ending the response operation to the data request information.
Optionally, the step of generating target data to be transmitted according to the multimedia data includes:
acquiring the data type or data size of the multimedia data;
when the data type is a set type, or the data size is larger than or equal to a set threshold, acquiring identification information corresponding to the multimedia data, and taking the identification information as the target data;
and when the data type is not the set type or the data size is smaller than the set threshold, taking the multimedia data as the target data.
Further, in order to achieve the above object, the present application also proposes a head mounted display device including: a memory, a processor and a data transfer program stored on the memory and executable on the processor, the data transfer program when executed by the processor implementing the steps of the data transfer method as claimed in any one of the above.
In addition, in order to achieve the above object, the present application also proposes a readable storage medium having stored thereon a data transmission program which, when executed by a processor, implements the steps of the data transmission method as recited in any one of the above.
The invention provides a data transmission method, which is used for sending data request information to external head-mounted display equipment through near field communication and receiving target data returned by the external head-mounted display equipment through the near field communication, and acquiring and playing multimedia data corresponding to the target data. By the scheme, the target data are generated according to the multimedia data currently played by the external head-mounted display equipment, a user does not need to search for the multimedia resources played in other head-mounted display equipment by himself, and the user can acquire the multimedia resources currently played by other head-mounted display equipment by only enabling the own head-mounted display equipment to be close to the head-mounted display equipment where the required resources are located, so that the user operation is greatly simplified in the resource acquisition process, and the convenience of the user who wears the display equipment to acquire the multimedia resources in other head-mounted display equipment is improved.
Drawings
FIG. 1 is a diagram illustrating a hardware configuration involved in operation of an embodiment of a head-mounted display apparatus according to the present invention;
FIG. 2 is a flowchart illustrating a data transmission method according to an embodiment of the present invention;
FIG. 3 is a flowchart illustrating a data transmission method according to another embodiment of the present invention;
FIG. 4 is a flowchart illustrating a data transmission method according to another embodiment of the present invention;
fig. 5 is a flowchart illustrating a data transmission method according to another embodiment of the invention.
The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
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 main solution of the embodiment of the invention is as follows: transmitting data request information to a first external head-mounted display device through near field communication; receiving target data sent by the first external head-mounted display device through the near field communication; the target data is generated by the first external head-mounted display device according to the currently played multimedia data of the first external head-mounted display device; and determining and playing the multimedia data corresponding to the target data.
In the prior art, if a user wearing the display device wants to acquire multimedia data from other devices for playing, the user can only know the related information of the multimedia data and then automatically search for corresponding multimedia resources and download the multimedia resources, which results in complicated operation and inconvenience for the user.
The present invention provides the above solution, and aims to improve the convenience of the user of the head-mounted display device in acquiring multimedia resources in other head-mounted display devices.
An embodiment of the present invention provides a head-mounted display device,
in an embodiment of the present invention, referring to fig. 1, a head mounted display device includes: a processor 1001 (e.g., a CPU), a memory 1002, a near field communication module 1003, and the like. The memory 1002 may be a high-speed RAM memory or a non-volatile memory (e.g., a disk memory). The memory 1002 may alternatively be a storage device separate from the processor 1001.
The memory 1002 and the near field communication module 1003 are each connected to the processor 1001. The near field communication module 1003 is used for near field communication connection between the head-mounted display device and other devices.
Those skilled in the art will appreciate that the configuration of the device shown in fig. 1 is not intended to be limiting of the device and may include more or fewer components than those shown, or some components may be combined, or a different arrangement of components.
As shown in fig. 1, a memory 1002, which is a readable storage medium, may include a data transmission program therein. In the apparatus shown in fig. 1, the processor 1001 may be configured to call a data transmission program stored in the memory 1002 and perform operations of steps related to a data transmission method in any one of the following embodiments.
The embodiment of the invention also provides a data transmission method which is applied to the head-mounted display equipment.
Referring to fig. 2, an embodiment of a data transmission method according to the present application is provided. In this embodiment, the data transmission method includes:
step S10, sending data request information to the first external head mounted display device through near field communication;
specifically, when a user needs to acquire multimedia data of a first external head-mounted display device, the user can control the head-mounted display device used by the user to pause playing, and when the head-mounted display device is in a state of pausing the playing of the multimedia data, the user can control a near field communication module in the head-mounted display device to start so as to form a near field network.
When detecting that the external head-mounted display device enters the near-field network, the external head-mounted display device is taken as the first external head-mounted display device and sends data request information to the external head-mounted display device.
Step S20, receiving target data sent by the first external head-mounted display device through the near field communication; the target data is generated by the first external head-mounted display device according to the currently played multimedia data of the first external head-mounted display device;
when the first external head-mounted display device receives the data request information based on the near field communication, the first external head-mounted display device can acquire the multimedia data currently played by the first external head-mounted display device, generates target data according to the multimedia data, and returns the target data to the head-mounted display device sending the data request information through the near field communication.
The head-mounted display equipment which sends the data request information receives target data which is returned by the first external head-mounted display equipment based on the data request information based on the near field communication.
Step S30, determining and playing the multimedia data corresponding to the target data.
Analyzing the data type of the received target data, judging whether the target data is multimedia data, and directly playing the target data when the target data is the multimedia data. When the target data is identification information of the multimedia data, sending the identification information to a connected third terminal; and the third terminal is used for searching corresponding multimedia data according to the received identification information and sending the searched multimedia data to the sender of the identification information. The identification information may be a name, a number, etc. of the multimedia data. The identification information is sent to a third terminal (for example, a mobile phone, a computer and the like paired with the head-mounted display device) connected with the head-mounted display device requesting data, after the third terminal receives the identification information, multimedia data search is performed through the identification information, a search result is returned to the head-mounted display device connected with the third terminal, and when the head-mounted display device requesting data receives the multimedia data returned by the third terminal based on the identification information, the multimedia data is played.
The data transmission method provided by the embodiment of the invention transmits data request information to external head-mounted display equipment through near field communication, receives target data returned by the external head-mounted display equipment through the near field communication, and acquires and plays multimedia data corresponding to the target data. By the scheme, the target data are generated according to the multimedia data currently played by the external head-mounted display device, a user does not need to search for the multimedia resources played in other head-mounted display devices by himself or herself, and only needs to make the head-mounted display device close to the head-mounted display device where the required resources are located, the multimedia resources currently played by other head-mounted display devices can be acquired, the user operation is greatly simplified in the resource acquisition process, and the convenience of the user wearing the display device to acquire the multimedia resources in other head-mounted display devices is improved.
Further, based on the above embodiments, another embodiment of the data transmission method of the present application is provided. In this embodiment, referring to fig. 3, before the step S20, the method further includes:
step S01, acquiring the signal intensity of the near field communication;
when the signal intensity is greater than or equal to a set intensity threshold, performing step S20; when the signal intensity is less than the set intensity threshold, step S40 is executed.
The specific value of the set intensity threshold can be determined according to actual conditions.
Step S40, sending a first bluetooth address to the first external head-mounted display device through the near field communication, and receiving a second bluetooth address sent by the first external head-mounted display device through the near field communication; the first Bluetooth address is a Bluetooth address of a first terminal connected with the head-mounted display device, and the second Bluetooth address is a Bluetooth address of a second terminal connected with the first external head-mounted display device;
the first terminal is specifically a terminal to which the head mounted display device requesting data is currently connected, and the second terminal is specifically a terminal to which the first external head mounted display device is currently connected. The first terminal and the second terminal may be embodied as earphones, a tablet computer, and the like. Specifically, the head-mounted display device requesting data is in bluetooth communication connection with the first terminal, and the first external head-mounted display device is in bluetooth communication connection with the second terminal.
When the signal strength of the near field communication is weak, the head mounted display device requesting data transmits the first bluetooth address of the first terminal connected thereto to the first external head mounted display device through the near field communication. After the first external head-mounted display device receives the first Bluetooth address or when the signal intensity of near field communication is strong, the first external head-mounted display device sends the second Bluetooth address of the second terminal connected with the first external head-mounted display device to the head-mounted display device requesting data through the near field communication.
Step S50, sending the second Bluetooth address to the first terminal, so that the first terminal is in Bluetooth communication connection with the second terminal according to the first Bluetooth address and the second Bluetooth address, and acquires target data sent by the second terminal through the Bluetooth communication connection; the first terminal is used for sending the multimedia data corresponding to the target data to target equipment when receiving the target data, and the target equipment is a sender of the second Bluetooth address;
and the head-mounted display equipment requesting data receives the second Bluetooth address and then sends the received second Bluetooth address to the first terminal. And the first external head-mounted display equipment receives the first Bluetooth address and then sends the received first Bluetooth address to the second terminal. When the first external head-mounted display device and the head-mounted display device requesting data both store the first bluetooth address and the second bluetooth address, the two head-mounted display devices may implement a bluetooth communication connection based on the first bluetooth address and the second bluetooth address.
After the Bluetooth communication connection between the two head-mounted display devices is established, the first external head-mounted display device sends generated target data to the second terminal, the second terminal receives the target data and then sends the target data to the first terminal through the Bluetooth communication connection, the first terminal can analyze the target data, if the target data is multimedia data, the target data is directly sent to the head-mounted display device connected with the first terminal, and if the target data is the identification information of the multimedia data, the corresponding multimedia data is searched based on the identification information and then sent to the head-mounted display device connected with the first terminal.
And step S60, receiving the returned multimedia data and playing.
In this embodiment, in the above manner, when the near field communication signal strength is strong, data transmission between two head-mounted display devices is realized by using near field communication; when the strength of the near field communication signal is weak, the two head-mounted display devices do not adopt near field communication to transmit data, but transmit the data based on Bluetooth communication between the terminals connected with the two head-mounted display devices, so that the head-mounted display device requesting the data can receive complete multimedia data played by the external head-mounted display device, and the effectiveness of data transmission between the two head-mounted display devices is ensured.
Further, based on any of the above embodiments, a further embodiment of the data transmission method of the present application is provided. In this embodiment, referring to fig. 4, the data transmission method further includes the following steps:
step S100, when receiving data request information of a second external head-mounted display device based on near field communication, reading currently played multimedia data;
and when the head-mounted display equipment receiving the data request is in a multimedia playing state, if the head-mounted display equipment is close to a second external head-mounted display equipment transmitting the near field network, establishing near field communication connection with the second external head-mounted display equipment. When data request information sent by the second external head-mounted display device is received based on near field communication, the multimedia data currently played by the device can be read. The multimedia data may specifically include audio data, video data, game data, and the like.
Wherein, in order to guarantee validity and the security of data transmission between the different head-mounted display devices, avoid other equipment unnecessary to acquire the data that wear the display device and cause user's data to reveal, the later stage of being convenient for simultaneously and wear the quick development of the code of mutual involving between the display device, data transmission between the display device can carry out based on fixed protocol, and specific agreement structure can refer to figure 5, and the agreement mainly divide into five parts: respectively protocol header (Requst ID); type (rice Type); whether to transmit or receive (Get); a BLE Bluetooth Address (BLE Address); data type (Date type).
Because the protocol is fixed, before the data required by the request is returned in the subsequent steps, when the data request information of the second external head-mounted display device is received based on near field communication, the protocol analysis can be carried out on the data request information, and whether the data request information is matched with the set protocol or not can be judged; if the multimedia data are matched with the multimedia data, the step of reading the currently played multimedia data is executed; and if not, ending the response operation to the data request information. When the data request information is matched with the set protocol, the device sending the data request information can be determined to be the head-mounted display device, the multimedia data is further read and corresponding target data is returned, if the data request information is not matched with the set protocol, the device sending the data request information can be determined not to be the head-mounted display device, the data request information is not responded, and data is not sent to the device.
Step S200, generating target data to be transmitted according to the multimedia data;
different multimedia data may correspond to different forms of target data. Specifically, the multimedia data may be directly used as the target data, or the identification information of the multimedia data may be acquired and used as the target data.
Specifically, in this embodiment, step S200 includes: acquiring the data type and/or the data size of the multimedia data; when the data type is a set type, or the data size is larger than or equal to a set threshold, acquiring identification information corresponding to the multimedia data, and taking the identification information as the target data; and when the data type is not the set type and the data size is smaller than the set threshold, taking the multimedia data as the target data. The data type may be divided based on whether the current multimedia data is a network resource in this embodiment. The setting type specifically refers to network resources. If the multimedia data is a network resource, the identification information can be used as target data; if the multimedia data is not a network resource, the multimedia data can be used as target data; if the data of the multimedia data is large, the identification information can be used as target data; if the data of the multimedia data is small, the multimedia data can be used as the target data.
Step S300, the target data is sent to the second external head-mounted display device through the near field communication.
In this embodiment, the head-mounted display device can share data for the external head-mounted display device based on the near field communication in the above manner, so that a user of the external head-mounted display device can provide multimedia data played by the user.
Further, based on the above embodiments, a further embodiment of the data transmission method of the present application is provided. In this embodiment, referring to fig. 5, before the step S300, the method further includes:
step S001, obtaining the signal intensity of the near field communication;
when the signal intensity is greater than or equal to a set intensity threshold, the step S300; when the signal intensity is smaller than the set intensity threshold, step S400 is executed.
The specific value of the set intensity threshold can be determined according to actual conditions.
Step S400, a third Bluetooth address is sent to the second external head-mounted display device through the near field communication, and a fourth Bluetooth address sent by the second external head-mounted display device is received through the near field communication; the third Bluetooth address is a Bluetooth address of a fourth terminal connected with the head-mounted display device, and the fourth Bluetooth address is a Bluetooth address of a fifth terminal connected with a second external head-mounted display device;
the fourth terminal is specifically a terminal to which the head mounted display device that received the data request is currently connected, and the fifth terminal is specifically a terminal to which the first external head mounted display device is currently connected. The fourth terminal and the fifth terminal may be embodied as an earphone, a tablet computer, and the like. Specifically, the head-mounted display device receiving the data request is in bluetooth communication connection with the fourth terminal, and the second external head-mounted display device is in bluetooth communication connection with the fifth terminal.
When the signal strength of the near field communication is weak, the head-mounted display device receiving the data request sends the third bluetooth address of the fourth terminal connected with the head-mounted display device to the second external head-mounted display device through the near field communication. After the second external head-mounted display device receives the third bluetooth address or when the signal strength of the near field communication is strong, the second external head-mounted display device sends the fourth bluetooth address of the fifth terminal connected with the second external head-mounted display device to the head-mounted display device receiving the data request through the near field communication.
Step S500, the fourth Bluetooth address is sent to the fourth terminal, so that the fourth terminal is in Bluetooth communication connection with the fourth terminal according to the third Bluetooth address and the fourth Bluetooth address, and the target data is sent to the fifth terminal through the Bluetooth communication connection; and the fifth terminal is used for sending the multimedia data corresponding to the target data to the second external head-mounted display equipment when receiving the target data.
And the head-mounted display equipment receiving the data request sends the received fourth Bluetooth address to the fifth terminal after receiving the fourth Bluetooth address. And the second external head-mounted display equipment receives the third Bluetooth address and then sends the received third Bluetooth address to the fifth terminal. When the head-mounted display device receiving the data request and the second external head-mounted display device needing to acquire data both store the third bluetooth address and the fourth bluetooth address, the two head-mounted display devices can realize bluetooth communication connection based on the third bluetooth address and the fourth bluetooth address.
After the Bluetooth communication connection between the two head-mounted display devices is established, the head-mounted display device receiving the data request sends the generated target data to the fourth terminal, the fourth terminal sends the target data to the fifth terminal through the Bluetooth communication connection after receiving the target data, the fifth terminal can analyze the target data, if the target data is multimedia data, the target data is directly sent to the second external head-mounted display device connected with the fourth terminal, and if the target data is the identification information of the multimedia data, the corresponding multimedia data is searched based on the identification information and then sent to the second external head-mounted display device connected with the fourth terminal.
In this embodiment, in the above manner, when the near field communication signal strength is strong, data transmission between two head-mounted display devices is realized by using near field communication; when the strength of the near field communication signal is weak, the two head-mounted display devices do not adopt near field communication to transmit data, but transmit the data based on bluetooth communication between terminals connected with the two head-mounted display devices, so that the second external head-mounted display device requesting the data can receive complete multimedia data played by the head-mounted display devices, and the effectiveness of data transmission between the two head-mounted display devices is ensured.
In addition, an embodiment of the present invention further provides a readable storage medium, where a data transmission program is stored, and when the data transmission program is executed by a processor, the data transmission program implements the relevant steps of any embodiment of the above data transmission method.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or system that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or system. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or system that comprises the element.
The above-mentioned serial numbers of the embodiments of the present invention are merely for description and do not represent the merits of the embodiments.
Through the above description of the embodiments, those skilled in the art will clearly understand that the method of the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but in many cases, the former is a better implementation manner. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium (e.g., ROM/RAM, magnetic disk, optical disk) as described above and includes instructions for enabling a terminal device (e.g., a mobile phone, a computer, a server, an air conditioner, or a network device) to execute the method according to the embodiments of the present invention.
The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (11)
1. A data transmission method is applied to a head-mounted display device, and is characterized by comprising the following steps:
transmitting data request information to a first external head-mounted display device through near field communication;
receiving target data sent by the first external head-mounted display device through the near field communication; the target data is generated by the first external head-mounted display device according to the currently played multimedia data of the first external head-mounted display device;
and determining and playing the multimedia data corresponding to the target data.
2. The data transmission method of claim 1, wherein the step of receiving the target data transmitted by the first external head-mounted display device through the near field communication is preceded by further comprising:
acquiring the signal intensity of the near field communication;
when the signal intensity is larger than or equal to a set intensity threshold value, the step of receiving the target data sent by the first external head-mounted display equipment through the near field communication is executed.
3. The data transmission method of claim 2, wherein the step of obtaining the signal strength of the near field communication is followed by further comprising:
when the signal intensity is smaller than the set intensity threshold value, sending a first Bluetooth address to the first external head-mounted display device through the near field communication, and receiving a second Bluetooth address sent by the first external head-mounted display device through the near field communication; the first Bluetooth address is a Bluetooth address of a first terminal connected with the head-mounted display device, and the second Bluetooth address is a Bluetooth address of a second terminal connected with the first external head-mounted display device;
sending the second Bluetooth address to the first terminal, so that the first terminal is in Bluetooth communication connection with the second terminal according to the first Bluetooth address and the second Bluetooth address, and acquires target data sent by the second terminal through the Bluetooth communication connection; the first terminal is used for sending the multimedia data corresponding to the target data to target equipment when receiving the target data, and the target equipment is a sender of the second Bluetooth address;
and receiving and playing the returned multimedia data.
4. The data transmission method according to any one of claims 1 to 3, wherein the determining and playing the multimedia data corresponding to the target data comprises:
when the target data is multimedia data, playing the target data;
when the target data is identification information of the multimedia data, sending the identification information to a connected third terminal; the third terminal is used for searching corresponding multimedia data according to the received identification information and sending the searched multimedia data to the sender of the identification information;
and receiving and playing the multimedia data returned based on the identification information.
5. A data transmission method is applied to a head-mounted display device, and is characterized by comprising the following steps:
reading currently played multimedia data when receiving data request information of a second external head-mounted display device based on near field communication;
generating target data to be transmitted according to the multimedia data;
sending the target data to the second external head-mounted display device through the near field communication.
6. The data transmission method of claim 5, wherein the step of sending the target data to the second external head-mounted display device via the near field communication is preceded by further comprising:
acquiring the signal intensity of the near field communication;
when the signal intensity is greater than or equal to a set intensity threshold, performing the step of sending the target data to the second external head-mounted display device by the near field communication.
7. The data transmission method of claim 6, wherein the step of obtaining the signal strength of the near field communication is followed by further comprising:
when the signal intensity is smaller than the set intensity threshold value, sending a third Bluetooth address to the second external head-mounted display device through the near field communication, and receiving a fourth Bluetooth address sent by the second external head-mounted display device through the near field communication; the third Bluetooth address is a Bluetooth address of a fourth terminal connected with the head-mounted display device, and the fourth Bluetooth address is a Bluetooth address of a fifth terminal connected with a second external head-mounted display device;
sending the fourth Bluetooth address to the fourth terminal, so that the fourth terminal is in Bluetooth communication connection with the fourth terminal according to the third Bluetooth address and the fourth Bluetooth address, and sends the target data to the fifth terminal through the Bluetooth communication connection;
and the fifth terminal is used for sending the multimedia data corresponding to the target data to the second external head-mounted display equipment when receiving the target data.
8. The data transmission method of claim 5, wherein the step of reading the currently played multimedia data is preceded by the step of:
judging whether the data request information is matched with a set protocol or not;
if the multimedia data are matched with the multimedia data, the step of reading the currently played multimedia data is executed;
and if not, ending the response operation to the data request information.
9. The data transmission method according to any one of claims 5 to 8, wherein the step of generating target data to be transmitted according to the multimedia data comprises:
acquiring the data type or data size of the multimedia data;
when the data type is a set type, or the data size is larger than or equal to a set threshold, acquiring identification information corresponding to the multimedia data, and taking the identification information as the target data;
and when the data type is not the set type or the data size is smaller than the set threshold, taking the multimedia data as the target data.
10. A head-mounted display device, comprising: memory, processor and data transmission program stored on the memory and executable on the processor, which data transmission program, when executed by the processor, implements the steps of the data transmission method according to any one of claims 1 to 9.
11. A readable storage medium, characterized in that the readable storage medium has stored thereon a data transmission program which, when executed by a processor, implements the steps of the data transmission method according to any one of claims 1 to 9.
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