WO2019140747A1

WO2019140747A1 - Method for synchronous playing of multiple playing devices, and playing device

Info

Publication number: WO2019140747A1
Application number: PCT/CN2018/077612
Authority: WO
Inventors: 杜来柱
Original assignee: 深圳市沃特沃德股份有限公司
Priority date: 2018-01-19
Filing date: 2018-02-28
Publication date: 2019-07-25
Also published as: CN108200457A

Abstract

The provided method for the synchronous playing of multiple playing devices comprises: a second playing device receiving control code information transmitted by a first playing device by means of a cloud server; acquiring, according to the control code information, a first playing progress of the first playing device, and the time difference between a local time of the first playing device and a standard time, so as to obtain a first standard moment at which the first playing device sends the control code information; obtaining, according to the time difference between a local time of the second playing device and the standard time, a second standard moment at which the second playing device receives the control code information; obtaining, according to the first standard moment and the second standard moment, a network delay time difference of the control code information, and adding the network delay time difference to the first playing progress to calculate a second playing progress moment of the second playing device; and switching the playing progress of the second playing device to a second playing progress. Multiple playing devices synchronously carry out playing by means of a cloud server.

Description

Method and device for synchronous playback of multiple playback devices

Technical field

The present invention relates to the field of electronic technologies, and in particular, to a method and a playback device for synchronous playback of multiple playback devices.

Background technique

As people's living standards improve, more and more people pursue rich amateur life to meet the demand for spiritual food, and there are also small group entertainment organizations with different interests and hobbies, but in the group activities to meet the group Synchronization requirements of activities require synchronization activities through sound broadcasting, music broadcasting, etc., to improve the organization of group activities. For example, the square dance group organization usually plays songs through high-powered speakers to synchronize the dance steps of the group organization. However, the noise caused by the high-powered speakers playing the songs disturbs the people, and the contradictions and conflicts caused by the noise disturbance are also common. With the gradual advancement of electronic technology, the application of smart devices is becoming more and more popular. The group activities of smart devices with headphones can solve the problem of noise disturbance, but the simultaneous playback of multiple smart devices is still a technical problem.

Therefore, the prior art has yet to be improved.

technical problem

The main purpose of the present invention is to provide a method for synchronous playback of multiple playback devices, which aims to solve the technical problem that multiple smart devices cannot achieve synchronous playback.

Technical solution

The present invention provides a method for synchronous playback of multiple playback devices, including:

The second playing device receives the control code information that is transmitted by the first playing device through the cloud server;

Obtaining, according to the control code information, a first playing progress of the first playing device, and a time difference between the local time of the first playing device and the standard time, to obtain a first standard time for the first playing device to send the control code information And obtaining, according to the time difference between the local time of the second playing device and the standard time, obtaining a second standard time for the second playing device to receive the control code information;

Obtaining a network delay time difference of the control code information according to the first standard time and the second standard time, adding a network delay time difference to the first play progress, and calculating a second play progress of the second play device ;

Switching the playback progress of the second playback device to the second playback progress.

Preferably, before the step of the second playback device receiving the control code information that is transmitted by the first playback device through the cloud server, the method includes:

The second playing device receives the request instruction to join the group, and joins the group;

Determining, by the first playback device, a playback device corresponding to a group member assigned by the group owner in the group;

Acquiring a synchronized play file shared by the first playback device, and storing the synchronous play file.

Preferably, after the step of switching the playing progress of the second playing device to the second playing progress, the method includes:

Receiving updated control code information;

Verifying the error of the synchronous play according to the updated control code information;

The playback progress of the second playback device is fine-tuned according to the error.

Preferably, after the step of switching the playing progress of the second playing device to the second playing progress, the method further includes:

Receiving a control command of the control code information sent by the first playback device;

Controlling a play status of the second playback device according to the control command.

Receiving the assignment of the group to become a master playback device;

Send the shared sync play file and control code information to the cloud server.

The invention also provides a playback device, comprising:

a first receiving module, configured to receive control code information that is transmitted by the first playing device through the cloud server;

a first acquiring module, configured to acquire, according to the control code information, a first playing progress of the first playing device, and a time difference between the local time of the first playing device and the standard time, to obtain the first playing device to send the control a first standard time of the code information; and obtaining a second standard time for the second playback device to receive the control code information according to a time difference between the local time of the second playback device and the standard time;

a calculating module, configured to obtain, according to the first standard time and the second standard time, a network delay time difference of the control code information, add a network delay time difference to the first playing progress, and calculate the second playing device Second play progress;

And a switching module, configured to switch a play progress of the second play device to the second play progress.

Preferably, the playing device includes:

a second receiving module, configured to receive a request instruction to join the group, and join the group;

a determining module, configured to determine that a playing device corresponding to a group member assigned by the group owner in the group is a first playing device;

And a second acquiring module, configured to acquire a synchronous play file shared by the first playing device, and store the synchronous play file.

Preferably, the playing device includes:

a third receiving module, configured to receive updated control code information;

a verification module, configured to check an error of the synchronous play according to the updated control code information;

And a fine adjustment module, configured to fine tune a play progress of the second playback device according to the error.

Preferably, the playing device further includes:

a fourth receiving module, configured to receive a control command of the control code information sent by the first playing device;

And a control module, configured to control a playing state of the second playing device according to the control command.

Preferably, the playing device further includes:

a fifth receiving module, configured to receive the assignment of the group to become a master playback device;

The sending module is configured to send the shared synchronized play file and the control code information to the cloud server.

Beneficial effect

Advantageous technical effects of the present invention: The present invention realizes synchronous play of a plurality of playback devices by transmitting control code information through a cloud server, obtains playback progress and standard time of the synchronous playback file from the control code information, and calculates a network delay time, thereby obtaining The accurate playback progress of the synchronized playback state of each playback device. When group activities are performed by the above synchronous play mode, each person only needs to wear a headset to listen to the synchronous play file, thereby avoiding the problem of noise disturbance. For example, square dance, no need for high-pitched speakers, through each group of members to listen to the playback of their respective playback devices by wearing headphones, you can jump out of a quiet square dance; such as outings / climbing / small gatherings, etc., can be played through the above synchronous The method consists of a small open contact area, simultaneous listening to songs, simultaneous tour guide attractions, etc., only the leader team establishes the APP group in advance through the cloud server, and shares the play file list with other group members. All the group members control their respective according to the control code information. The intelligent terminal can realize the synchronous play effect, and the activities of each group do not interfere with each other, which solves the problem of noise disturbance, and saves the consumption of information traffic.

DRAWINGS

1 is a schematic flowchart of a method for synchronously playing a plurality of playback devices according to an embodiment of the present invention;

2 is a schematic structural diagram of a playback device according to an embodiment of the present invention;

FIG. 3 is a schematic diagram of an optimized structure of a playback device according to an embodiment of the present invention; FIG.

4 is a schematic diagram of an optimized structure of a playback device according to an embodiment of the present invention;

FIG. 5 is a schematic diagram of an optimized structure of a playback device according to an embodiment of the present invention; FIG.

FIG. 6 is a schematic structural diagram of a playback device according to another embodiment of the present invention.

The implementation, functional features, and advantages of the present invention will be further described in conjunction with the embodiments.

BEST MODE FOR CARRYING OUT THE INVENTION

It is understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

Referring to FIG. 1, a method for synchronously playing a plurality of playback devices according to an embodiment of the present invention includes:

S1: The second playing device receives the control code information that is transmitted by the first playing device through the cloud server.

In this embodiment, the first playing device is the main control playing device, and the control code information sent by the main control playing device is transmitted through the cloud server, so that the multiple playing devices synchronously play the respective local files, and the information of the control code information is very small, and the consumption is very small. The traffic is also small, and at the same time, each playback device can smoothly play files without being affected by the state of the network. The playback device of the embodiment includes: a smart phone/PAD/smart speaker that installs a “synchronized broadcast” APP, and the “synchronous broadcast” APP in this embodiment is a software based on ANDROID or IOS, and has group management, group member management, Function modules such as group messages, playlist management, file upload and download, and assignment of anchors.

S2: Acquire, according to the control code information, a first play progress of the first play device, and a time difference between the local time of the first play device and the standard time, to obtain the first message that the first play device sends the control code information. a standard time; and according to the time difference between the local time of the second playing device and the standard time, obtaining a second standard time for the second playing device to receive the control code information.

The control code information of this embodiment includes: a network standard time, a time difference between the first playback device and the network standard time, an initiation time of the initiated play file, a play file list number, a play file number, and a play status instruction. The network standard time of this embodiment, such as Beijing time in the East Eight Time Zone.

S3: obtaining, according to the first standard time and the second standard time, a network delay time difference of the control code information, adding a network delay time difference to the first play progress, and calculating a second second playing device. Play progress.

The first playback device and the second playback device in this step have different differences from the network standard time, and the synchronization play progress of the first playback device and the second playback device is adjusted based on the network standard time, which is beneficial to improve synchronization. The precision of playback.

S4: Switch the playing progress of the second playing device to the second playing progress.

In this embodiment, the playback progress of the second playback device is controlled according to the control code information. The second playback device in this embodiment may be multiple, and respectively receive control code information sent by the first playback device through the cloud, to implement multiple second playback devices. Play synchronously with the first playback device.

Further, in this embodiment, before step S1, the method includes:

S10: The second playing device receives the request instruction for joining the group, and joins the group.

The playing device in this embodiment is a smart phone. In this step, the smart phone of the other group members of the "synchronized broadcast" APP is installed through the component group in the "synchronous broadcast" APP of the group master smart phone, and the two-dimensional code is scanned. , or enter the registered ID to join the group.

S11: Determine that the playing device corresponding to a group member assigned by the group owner in the group is the first playing device.

The group owner can assign a member's smartphone to be the first playback device on the "host" side.

S12: Acquire a synchronized play file shared by the first playing device, and store the synchronous play file.

The first playing device can create a play file list and upload the selected play files to the cloud server in batches under WIFI traffic. Other group members can update the play file list and play files uploaded by the first play device to their respective smartphones for local storage under WIFI. The cloud server obtains the local time of the smartphones of all the group members, and compares with the standard time of the network, and generates control code information according to information such as the time/network standard time/play file list of each group member's smartphone, and controls The code information will be updated to the smartphones of all group members as needed.

Further, in this embodiment, after step S4, the method includes:

S40: Receive updated control code information.

In this embodiment, the control code information is updated according to the playback progress of the first playback device every fixed time.

S41: Verify the error of the synchronous play according to the updated control code information.

The synchronous play effect of multiple playback devices is synchronously monitored according to the control code information updated in real time.

S42: Fine-tune the playing progress of the second playing device according to the error.

When the "synchronous broadcast" APP of the smart phone of the embodiment is running, the volume of the play is increased/decreased by pressing and holding the volume +/- button of the mobile phone, but the volume of the +/- button can be adjusted by a double tap to adjust the progress time of the synchronous play to Further improve the consistency of synchronous playback.

Further, in the embodiment of the present invention, after step S4, the method further includes:

S43: Receive a control command of the control code information sent by the first playback device.

The "synchronous broadcast" APP of the "host" smartphone of this embodiment has the control right of the control code information, and can play/pause/switch the play file, etc., such as switching to play the next song or the previous song.

S44: Control a playing state of the second playing device according to the control command.

Further, in another embodiment of the present invention, after step S4, the method further includes:

S45: Receive the assignment of the group to become an anchor playback device.

The second playing device of this embodiment may be converted into an anchor playing device, that is, a first playing device, according to the group owner's assignment, and has control authority of the control code information.

S46: Send the shared synchronized play file and the control code information to the cloud server.

In this embodiment, the "synchronous broadcast" APP of the "host" smartphone selects a playlist, selects a song and clicks "play", and the "synchronous broadcast" APP of the "host" smartphone will play the file information and control synchronously. The code information is sent to the cloud server, and the control code information stored by the cloud server is updated, and sent to each smartphone of the group member through the cloud server. Each group member receives the control code information through the "synchronization broadcast" APP on the smart phone, and then corrects according to the network transmission time delay carried in the control code information, generates a playback start position of the corresponding play file, and then associates with the "host" intelligence. The phone plays the playback file synchronously.

Referring to FIG. 2, a playback device according to an embodiment of the present invention includes:

The first receiving module 1 is configured to receive control code information that is transmitted by the first playing device through the cloud server.

The playing device in this embodiment is used as the second playing device, and the first playing device is the main playing device, and the first receiving module 1 receives the control code information sent by the cloud server to the master playing device, so that multiple playing devices are synchronized. Playing the respective local files, the amount of information of the control code information is very small, and the consumed traffic is also small, and at the same time, the playback device can be smoothly played by the playback device without being affected by the network state. The playback device of the embodiment includes: a smart phone/PAD/smart speaker that installs a “synchronized broadcast” APP, and the “synchronous broadcast” APP in this embodiment is a software based on ANDROID or IOS, and has group management, group member management, Function modules such as group messages, playlist management, file upload and download, and assignment of anchors.

The first obtaining module 2 is configured to obtain, according to the control code information, a first playing progress of the first playing device, and a time difference between the local time of the first playing device and the standard time, to obtain the first playing device to send the The first standard time of the control code information is obtained; and the second standard time for the second playback device to receive the control code information is obtained according to the time difference between the local time of the second playback device and the standard time.

The calculating module 3 is configured to obtain a network delay time difference of the control code information according to the first standard time and the second standard time, and calculate the network delay time difference plus the first playing progress to calculate the second playing device The second playback progress.

The first playback device and the second playback device in this embodiment have different differences from the network standard time, and the synchronization play progress of the first playback device and the second playback device is adjusted based on the network standard time, which is beneficial to improve. The precision of synchronized playback.

The switching module 4 is configured to switch the playing progress of the second playing device to the second playing progress.

In this embodiment, the switching module 4 controls the playing progress of the second playing device according to the control code information. The second playing device in this embodiment may be multiple, and respectively receive the control code information sent by the first playing device through the cloud to implement multiple The second playing device plays synchronously with the first playing device.

Referring to FIG. 3, the playback device of this embodiment further includes:

The second receiving module 10 is configured to receive a request instruction for joining the group, and join the group.

The playing device in this embodiment is a smart phone, and the component group in the "synchronous broadcast" APP of the group master smart phone in this embodiment is installed with the smart phone of the other group members of the "synchronized broadcast" APP, and receives the second through the second Module 10 scans the two-dimensional code or enters the registered ID to join the group.

The determining module 11 is configured to determine that the playing device corresponding to a group member assigned by the group owner in the group is the first playing device.

The second obtaining module 12 is configured to acquire a synchronous play file shared by the first playing device, and store the synchronous play file.

The first playing device can create a play file list and upload the selected play files to the cloud server in batches under WIFI traffic. The other group members can update the play file list and the play file uploaded by the first play device to the respective smart phones for local storage under the WIFI through the second obtaining module 12. The cloud server obtains the local time of the smartphones of all the group members, and compares with the standard time of the network, and generates control code information according to information such as the time/network standard time/play file list of each group member's smartphone, and controls The code information will be updated to the smartphones of all group members as needed.

Referring to FIG. 4, the playback device of this embodiment further includes:

The third receiving module 40 is configured to receive updated control code information.

The verification module 41 is configured to check the error of the synchronous play according to the updated control code information.

The verification module 41 synchronously monitors the synchronized play effects of the plurality of playback devices according to the control code information updated in real time.

The fine adjustment module 42 is configured to fine tune the playback progress of the second playback device according to the error.

When the "synchronous broadcast" APP of the smart phone of the embodiment is running, the volume of the play is increased/decreased by pressing and holding the volume +/- button of the mobile phone, but the volume of the +/- button can be adjusted by the fine adjustment module 42 to adjust the synchronous play. Progress time to further improve the consistency of synchronized playback.

Referring to FIG. 5, further, the apparatus for synchronously playing the multiple playback devices of the embodiment further includes:

The fourth receiving module 43 is configured to receive a control command carried by the control code information sent by the first playing device.

The control module 44 is configured to control a playing state of the second playing device according to the control command.

Referring to FIG. 6 , an apparatus for synchronously playing a plurality of playback devices according to another embodiment of the present invention further includes:

The fifth receiving module 45 is configured to receive the assignment of the group to become a master playback device.

The second playing device of this embodiment can receive the group owner's assignment by the fifth receiving module 45 to be converted into the anchor playing device, that is, the first playing device, and has the control authority of the control code information.

The sending module 46 is configured to send the shared synchronous play file and the control code information to the cloud server.

In this embodiment, the "synchronous broadcast" APP of the "host" smartphone selects a playlist, selects a song and clicks "play", and the "synchronous broadcast" APP of the "host" smartphone will play the file information and control synchronously. The code information is sent to the cloud server through the sending module 46, and the control code information stored by the cloud server is updated, and sent to each smart phone of the group member through the cloud server. Each group member receives the control code information through the "synchronization broadcast" APP on the smart phone, and then corrects according to the network transmission time delay carried in the control code information, generates a playback start position of the corresponding play file, and then associates with the "host" intelligence. The phone plays the playback file synchronously.

In the embodiment of the present invention, the method for transmitting control code information by the cloud server enables multiple playback devices to play synchronously, obtains the playback progress and standard time of the synchronous playback file from the control code information, and calculates the network delay time, thereby obtaining the playback time of each playback device. The exact playback progress of the synchronized playback state. When group activities are performed by the above synchronous play mode, each person only needs to wear a headset to listen to the synchronous play file, thereby avoiding the problem of noise disturbance. For example, square dance, no need for high-pitched speakers, through each group of members to listen to the playback of their respective playback devices by wearing headphones, you can jump out of a quiet square dance; such as outings / climbing / small gatherings, etc., can be played through the above synchronous The method consists of a small open contact area, simultaneous listening to songs, simultaneous tour guide attractions, etc., only the leader team establishes the APP group in advance through the cloud server, and shares the play file list with other group members. All the group members control their respective according to the control code information. The intelligent terminal can realize the synchronous play effect, and the activities of each group do not interfere with each other, which solves the problem of noise disturbance, and saves the consumption of information traffic.

The above is only the preferred embodiment of the present invention, and is not intended to limit the scope of the invention, and the equivalent structure or equivalent process transformations made by the description of the invention and the drawings are directly or indirectly applied to other related The technical field is equally included in the scope of patent protection of the present invention.

Claims

A method for synchronously playing a plurality of playing devices, comprising:

The second playing device receives the control code information that is transmitted by the first playing device through the cloud server;

Obtaining, according to the control code information, a first playing progress of the first playing device, and a time difference between the local time of the first playing device and the standard time, to obtain a first standard time for the first playing device to send the control code information And obtaining, according to the time difference between the local time of the second playing device and the standard time, obtaining a second standard time for the second playing device to receive the control code information;

Obtaining a network delay time difference of the control code information according to the first standard time and the second standard time, adding a network delay time difference to the first play progress, and calculating a second play progress of the second play device ;

Switching the playback progress of the second playback device to the second playback progress.
The method for synchronously playing a plurality of playback devices according to claim 1, wherein before the step of receiving the control code information transmitted by the first playback device through the cloud server, the second playback device includes:

The second playing device receives the request instruction to join the group, and joins the group;

Determining, by the first playback device, a playback device corresponding to a group member assigned by the group owner in the group;

Acquiring a synchronized play file shared by the first playback device, and storing the synchronous play file.
The method for synchronously playing a plurality of playback devices according to claim 1, wherein the step of switching the playback progress of the second playback device to the second playback progress comprises:

Receiving updated control code information;

Verifying the error of the synchronous play according to the updated control code information;

The playback progress of the second playback device is fine-tuned according to the error.
The method for synchronously playing a plurality of playback devices according to claim 1, wherein the step of switching the playback progress of the second playback device to the second playback progress further comprises:

Receiving a control command of the control code information sent by the first playback device;

Controlling a play status of the second playback device according to the control command.
The method for synchronously playing a plurality of playback devices according to claim 1, wherein the step of switching the playback progress of the second playback device to the second playback progress further comprises:

Receiving the assignment of the group to become a master playback device;

Send the shared sync play file and control code information to the cloud server.
The method for synchronously playing a plurality of playback devices according to any one of claims 1 to 5, wherein the control code information comprises: a network standard time, a time difference between the first playback device and the network standard time, and the playback is initiated. At least one of a file start time, a play file list number, a play file number, and a play status command.
A playback device, comprising:

a first receiving module, configured to receive control code information that is transmitted by the first playing device through the cloud server;

a first acquiring module, configured to acquire, according to the control code information, a first playing progress of the first playing device, and a time difference between the local time of the first playing device and the standard time, to obtain the first playing device to send the control a first standard time of the code information; and obtaining a second standard time for the second playback device to receive the control code information according to a time difference between the local time of the second playback device and the standard time;

a calculation module, configured to obtain, according to the first standard time and the second standard time, a network delay time difference of the control code information, and calculate a network delay time difference plus a first play progress to calculate the second playback device Second playback progress;

And a switching module, configured to switch a play progress of the second play device to the second play progress.
The playback device of claim 7, comprising:

a second receiving module, configured to receive a request instruction to join the group, and join the group;

a determining module, configured to determine that a playing device corresponding to a group member assigned by the group owner in the group is a first playing device;

And a second acquiring module, configured to acquire a synchronous play file shared by the first playing device, and store the synchronous play file.
The playback device of claim 7, comprising:

a third receiving module, configured to receive updated control code information;

a verification module, configured to check an error of the synchronous play according to the updated control code information;

And a fine adjustment module, configured to fine tune a play progress of the second playback device according to the error.
The playback device of claim 7, further comprising:

a fourth receiving module, configured to receive a control command of the control code information sent by the first playing device;

And a control module, configured to control a playing state of the second playing device according to the control command.
The playback device of claim 7, further comprising:

a fifth receiving module, configured to receive the assignment of the group to become a master playback device;

The sending module is configured to send the shared synchronized play file and the control code information to the cloud server.