CN108429562B

CN108429562B - Multimedia equipment playing control method and multimedia system

Info

Publication number: CN108429562B
Application number: CN201810220464.1A
Authority: CN
Inventors: 李慧文
Original assignee: Inventec Appliances Shanghai Corp
Current assignee: Inventec Appliances Shanghai Corp
Priority date: 2018-03-16
Filing date: 2018-03-16
Publication date: 2020-03-06
Anticipated expiration: 2038-03-16
Also published as: CN108429562A

Abstract

The invention provides a multimedia device playing control method and a multimedia system, wherein the multimedia device playing control method is applied to the multimedia system, and the control method comprises the following steps: forming at least one play group; detecting the position change and/or the quantity change of the mobile terminal every preset time length; adjusting the composition of the play group and/or the volume of the multimedia equipment in the play group according to the corresponding relation between the mobile terminal and the play group; the multimedia system comprises at least two multimedia devices, and the device playing range of each multimedia device forms a system playing range; the playing group comprises at least one multimedia device, and the device playing range of each multimedia device forms a group playing range; the same play group is associated with at least one mobile terminal, each mobile terminal is associated with at most one play group, and the mobile terminals associated with the play groups are positioned in the group play range. The method and the system provided by the invention adjust the multimedia playing effect based on the dynamic playing group and improve the sound effect playing uniformity.

Description

Multimedia equipment playing control method and multimedia system

Technical Field

The present invention relates to the field of multimedia playing, and in particular, to a multimedia device playing control method and a multimedia system.

Background

The multimedia system in the prior art, especially the volume adjustment and control mode of the sound box system, includes two types: 1) the keys are directly adjusted or each room is independently provided with a control panel or the same logic switch for control; 2) the sound box can be connected with the mobile phone in a Bluetooth or Wi-Fi wireless mode, and the sound volume of the sound box can be adjusted on the mobile phone.

However, in the process of implementing the present invention, the inventors found that at least the following technical problems exist in the prior art:

1) the playing effect of the multimedia system is difficult to dynamically adjust according to the position movement of users or the change of the number of users by a plurality of multimedia devices in the existing multimedia system;

2) in the case where a plurality of multimedia devices and a plurality of users exist, controlling the plurality of multimedia devices to provide the same or different audio sources when the users are moving cannot be achieved only according to the logical on-off control or the wireless control;

3) when different sound sources exist in a multimedia system, it is difficult to avoid mutual interference between the different sound sources.

Disclosure of Invention

In order to overcome the defects in the prior art, the invention provides a multimedia device playing control method and a multimedia system, wherein a dynamic playing group is formed according to the corresponding relation between a mobile terminal and each multimedia device, and multimedia playing is carried out according to the playing group, so that the uniformity of multimedia playing sound effect in the playing group is improved.

According to an aspect of the present invention, there is provided a multimedia device playing control method, applied to a multimedia system, the control method including:

forming at least one play group;

detecting the position change and/or the quantity change of the mobile terminal every preset time length;

adjusting the composition of the play group and/or the volume of the multimedia equipment in the play group according to the corresponding relation between the mobile terminal and the play group;

the multimedia system comprises at least two multimedia devices, wherein each multimedia device is provided with a device playing range, the device playing ranges of the multimedia devices form a system playing range, and the device playing ranges of the at least two multimedia devices are partially overlapped;

the playing group comprises at least one multimedia device, each multimedia device in the same playing group plays the same multimedia source, and the device playing range of each multimedia device forms a group playing range;

and associating at least one mobile terminal with the same play group, associating each mobile terminal with at most one play group, and positioning the mobile terminal associated with the play group in the group play range.

According to a further aspect of the present invention, there is also provided a multimedia system operating in the control method as described above, the system comprising:

the system comprises at least two multimedia devices, wherein each multimedia device is provided with a device playing range, the device playing ranges of the at least two multimedia devices are partially overlapped, and the device playing ranges of the multimedia devices of the multimedia system form a system playing range.

Optionally, the forming at least one play group includes:

and if the multimedia system identifies a mobile terminal which newly enters the system playing range, the multimedia equipment which identifies the mobile terminal forms a playing group, and the mobile terminal is associated with the playing group.

Optionally, the adjusting the composition of the play group includes:

if the multimedia system identifies a newly-entered mobile terminal, judging whether the mobile terminal is positioned in the group playing range of any playing group;

if so, associating the mobile terminal with the play group;

if not, forming a new play group by the multimedia equipment which is identified as the mobile terminal and is not added with any play group, and associating the new play group with the mobile terminal.

Optionally, the adjusting the composition of the play group includes:

if the multimedia equipment identifies a mobile terminal which is associated with a playing group and newly enters the equipment playing range of the multimedia equipment, judging whether only the mobile terminal exists in the equipment playing range of the multimedia equipment;

if yes, adding the multimedia equipment into a play group associated with the mobile terminal;

if not, determining the number of playing groups including the mobile terminal in the group playing range;

if the number of the determined playing groups is more than or equal to 2, the mobile terminal still associates with the original playing group;

and if the determined number of the playing groups is equal to 1, the mobile terminal associates with the playing group.

Optionally, the adjusting the composition of the play group includes one or more of the following steps:

if the mobile terminal moves out of the group play range of the associated play group, releasing the association between the mobile terminal and the play group;

if no mobile terminal exists in the group playing range of the playing group, releasing the playing group;

and if the mobile terminal does not exist in the equipment playing range of the multimedia equipment of the playing group, releasing the multimedia equipment from the playing group and stopping the multimedia equipment.

Optionally, adjusting the volume of the multimedia device in the play group includes:

and when the mobile terminal is associated with the existing play group, the volume setting of the play group is not changed.

and when the mobile terminal is associated with a new play group, adjusting the volume setting of each multimedia device in the play group according to the preset volume.

Optionally, adjusting the volume setting of each multimedia device in the play group according to the preset volume includes:

if the playing group only comprises one multimedia device, the multimedia device is played at the preset volume;

if the play group comprises two or more multimedia devices, each multimedia device in the play group plays at a volume obtained by subtracting a volume parameter from a preset volume, wherein the volume parameter is positively correlated with the number of the multimedia devices in the play group.

Optionally, the adjusting, according to the correspondence between the mobile terminal and the play group, the composition of the play group and/or the volume of the multimedia device in the play group includes:

the mobile terminal detects the user activity information, and when at least two play groups work in the multimedia system, if the activity information detected by one or more mobile terminals in any play group indicates that the user is in a static state, the volume of each multimedia device in the play group is reduced to a preset low volume.

Optionally, the activity information is heart rate information and/or step number information of the user,

when the heart rate information is lower than the heart rate threshold value and/or the step number information is not changed, judging that the user is in a static state;

optionally, the mobile terminal is a wearable device, one or more wearable devices are associated with the same application account, and the application user sets the preset volume.

Compared with the prior art, the invention has the following advantages:

1) under the condition of having a plurality of multimedia devices, a playing group is formed through the corresponding relation between the mobile terminal and the device playing range of each multimedia device, and the composition of the playing group and/or the volume of the multimedia devices in the playing group are/is dynamically adjusted according to the movement of the mobile terminal, so that the sound effect of the multimedia devices can be changed along with the position change of the mobile terminal, and therefore, a user can be ensured to always obtain the same sound field covering effect when moving in the system playing range:

2) under the condition of having a plurality of multimedia devices and a plurality of mobile terminals, a plurality of play groups can be formed according to the positions of the mobile terminals, and one play group plays one multimedia source to one or a plurality of mobile terminals positioned in the play range of the play group, so that the mobile terminals at different positions can listen to different multimedia sources;

3) when a plurality of playing groups work simultaneously, in order to reduce the interference among the playing groups, according to the user activity information acquired by the mobile terminal, when the user is judged to be stationary, the volume of the playing group where the mobile terminal is located is reduced, so as to reduce the interference of the playing group on other playing groups;

4) the wearable device is used as a mobile terminal, so that a user can be accurately judged to enter a system playing range, and whether the wearable device is worn on a human body can be judged by acquiring the information of the wearable device;

5) when the same user has a plurality of wearing devices, the wearing devices are associated with the same application account to indicate that the wearing devices are associated with the same user, different users can be identified through the application account, and meanwhile, the preset volume and user preference can be set through the application.

Drawings

The above and other features and advantages of the present invention will become more apparent by describing in detail exemplary embodiments thereof with reference to the attached drawings.

Fig. 1 is a flowchart illustrating a multimedia device play control method according to a first embodiment of the present invention.

Fig. 2 is a flowchart illustrating a multimedia device play control method according to a second embodiment of the present invention.

Fig. 3 is a flowchart illustrating a multimedia device play control method according to a third embodiment of the present invention.

Fig. 4 to 11 are schematic diagrams illustrating that a multimedia system forms different play groups according to an embodiment of the present invention.

Fig. 12 is a flowchart illustrating a volume control step of multimedia playback according to an embodiment of the present invention.

Fig. 13 shows a flowchart of the multi-play group interference mitigation step according to an embodiment of the present invention.

FIG. 14 schematically illustrates a computer-readable storage medium in an exemplary embodiment of the disclosure.

Detailed Description

Example embodiments will now be described more fully with reference to the accompanying drawings. Example embodiments may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of example embodiments to those skilled in the art. The same reference numerals in the drawings denote the same or similar structures, and thus their repetitive description will be omitted.

The described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments. In the following description, numerous specific details are provided to provide a thorough understanding of embodiments of the invention. One skilled in the relevant art will recognize, however, that the invention may be practiced without one or more of the specific details, or with other methods, components, materials, and so forth. In some instances, well-known structures, materials, or operations are not shown or described in detail to avoid obscuring the invention.

The drawings of the present invention are for illustrating relative positional relationships, and the sizes of elements in the drawings do not represent proportional relationships of actual sizes.

The following describes a multimedia device playing control method and a multimedia system according to an embodiment of the present invention with reference to fig. 1 to 11. Fig. 1 shows a flowchart of a multimedia device play control method according to an embodiment of the present invention. Fig. 2 is a flowchart illustrating a multimedia device play control method according to a second embodiment of the present invention. Fig. 3 is a flowchart illustrating a multimedia device play control method according to a third embodiment of the present invention. Fig. 4 to 11 are schematic diagrams illustrating that a multimedia system forms different play groups according to an embodiment of the present invention. The multimedia control method provided by the invention is applied to a multimedia system.

As shown in fig. 4-11, the multimedia system includes a plurality of multimedia devices 210A-210D. Each of the multimedia devices 210A-210D has a device play range 211. At least some of the device play ranges 211 of the multimedia devices 210A-210D partially overlap.

For example, in fig. 4, the device play ranges 211 of the multimedia device 210A and the multimedia device 210B partially overlap; the device playback ranges 211 of the multimedia device 210C and the multimedia device 210D partially overlap. The device playback range 211 of each multimedia device 210A-210D of the multimedia system forms a system playback range. The multimedia systems shown in fig. 4 to 11 are only schematic, and the number and arrangement of the multimedia devices in the multimedia system are not limited thereto; the device playing range of each multimedia device depends on the performance of each multimedia device, and the size and shape of each multimedia device are not limited thereto.

In practice, the device playback range of the multimedia device includes but is not limited toWhen the audio source is beyond the playing range of the device at a predetermined volume (e.g. 60 db-70 db), it is not guaranteed that the audio source played by the multimedia device can achieve the sound field effect at the volume predetermined by the user. The theoretical basis is as follows: according to the acoustic principle, the total energy radiated to the space is constant under the premise that the output power of a playing device is constant in unit time, and the total energy is also constant according to a formula

Which may be considered as the total energy radiated into space by the sound source per unit time, the sound intensity I refers to the average sound energy flow per unit area at a radial distance r from the sound source, where I may be understood as the volume level heard at the receiver by the user,

it can be seen from the formula that when the distance is doubled, the sound intensity I becomes 1/4 times of the original sound intensity, and the relationship between the sound pressure level (in decibels) and the sound intensity is SPL 10 log₁₀(I/I_ref) The reduction in sound pressure level by 6dB is calculated. If the set volume is 65dB at a position 1 m away from the sound source, the volume received by the user at a distance of 2 m away from the sound source is 59 dB; the user receives 53dB of volume 4 meters from the sound source, typically about 50dB of room noise floor, and when the sound pressure level of the playback device is close to or below the ambient noise floor, the audio source being played is not clear enough or is masked by the ambient noise. If the playing equipment is placed in different rooms, the sound pressure level received by a user is reduced more than the inverse square distance ratio due to the sound insulation effect of the wall.

In still other embodiments, the device playback range of each multimedia device may also be the coverage of wireless connection signals of the multimedia device.

A first embodiment of the present invention relates to a multimedia playing control method, as shown in fig. 1, a flowchart shown in fig. 1 includes 3 steps:

step S110: forming at least one play group.

Each play group includes one or more multimedia devices that play the same multimedia source. And forming a group playing range by the device playing ranges of the multimedia devices in the playing group. Each play group is associated with one or more mobile terminals, the mobile terminals associated with the play group are located within the group play range, and each mobile terminal is associated with at most one play group.

Specifically, in some embodiments, if the multimedia system identifies a mobile terminal that newly enters a system play range, the multimedia device that identifies the mobile terminal forms a play group, and the mobile terminal associates the play group.

Step S120: and detecting the position change and/or the quantity change of the mobile terminal every preset time length.

Specifically, the preset time period may be set according to the user requirement, and may be, for example, 10 seconds, 20 seconds, 30 seconds, 1 minute, 10 minutes, or other preset time. The position change and/or the quantity change of the mobile terminal can be detected according to wireless communication between each multimedia device and the mobile terminal, and the communication mode can be ANT + or low-power short-distance communication protocols such as BLE Bluetooth 4.0 and the like. In other embodiments, each multimedia device may also detect a location change and/or a number change of the mobile terminal in other manners, which are not described herein.

Step S130: and adjusting the composition of the play group and/or the volume of the multimedia equipment in the play group according to the corresponding relation between the mobile terminal and the play group.

Therefore, the composition of the playing group is dynamically changed along with the formation of the playing group and the movement along with the position of the mobile terminal, and the volume of each multimedia device is adjusted according to the position change of the mobile terminal so as to realize uniform sound effect; also, when there are a plurality of mobile terminals, the playback of different audio sources can be realized.

A second embodiment of the present invention relates to a multimedia playing control method, as shown in fig. 2, including the following steps:

step S511: the multimedia system identifies whether a mobile terminal newly enters a system playing range.

If the determination in step S511 is no, S511 is repeatedly executed to perform the determination. If the determination in step S511 is yes, step S512 is executed to continuously determine whether the mobile terminal is located within the group play range of any play group.

If yes in step S512, step S513 is executed to associate the mobile terminal with the play group. If the determination in step S512 is no, step S514 is executed to form a new play group by identifying the multimedia devices of the mobile terminal that are not joined to any play group, and the mobile terminal associates with the new play group.

In a specific embodiment, the implementation of the above steps can be seen in fig. 4 to 10.

As shown in fig. 4 and 5, when the multimedia system recognizes that the mobile terminal 220 moves from outside the system play range of the multimedia system to inside the system play range, the multimedia device 210A having the mobile terminal 220 in the device play range 211 forms a play group, and the mobile terminal 220 is associated with the play group. The group play range 201 of the play group is composed of the device play range 211 of the multimedia device 210A. It is understood that the above-mentioned step of the multimedia system identifying the mobile terminal 220 can be performed by each of the multimedia devices 210A-210D of the multimedia system sending the signal identifying the mobile terminal 220 to a server for unification. In some variations, the step of the multimedia system recognizing the mobile terminal 220 may be implemented by the multimedia devices 210A to 210D of the multimedia system communicating with each other, without performing uniform control by a server, and the communication mode may be an ANT + or a low-power short-distance communication protocol such as BLE bluetooth 4.0.

Further, each of the multimedia devices 210A to 210D may be wirelessly connected to the mobile terminal 220 (e.g., connected to WIFI or bluetooth), and obtain the location information of the mobile terminal 220, so as to determine whether the mobile terminal 220 enters the device playing range. More specifically, the mobile terminal 220 may be distinguished from other mobile terminals 220 by its hardware identification (e.g., wireless network card, ANT +, BLU hardware, etc.) or other identification information (e.g., Mac address of wireless network card, ANT +, serial number of BLU device, etc.). As shown in fig. 4 and fig. 6, when the multimedia system recognizes that the mobile terminal 220 moves from outside the system play range of the multimedia system to inside the system play range, the

multimedia devices

210A and 210B having the mobile terminal 220 in the device play range 211 form a play group, and the mobile terminal 220 is associated with the play group. The group play range 201 of the play group is composed of the device play ranges 211 of the

multimedia devices

210A and 210B. In this embodiment, when the mobile terminal 220 moves from outside the system playing range of the multimedia system to inside the system playing range, the mobile terminal 220 is located in the overlapped local area of the device playing ranges 211 of the

multimedia devices

210A and 210B, that is, the device playing ranges 211 of the

multimedia devices

210A and 210B both have the mobile terminal 220, so that the

multimedia devices

210A and 210B form a playing group associated with the mobile terminal 220.

As shown in fig. 5 and fig. 6, the multimedia device 210B identifies the mobile terminal 220 that has associated a play group (the play group composed of the multimedia device 210A in fig. 3) and newly enters the device play range of the multimedia device 210B. As shown in fig. 4, it can be determined that only the mobile terminal 220 exists within the device playing range of the multimedia device 210B, and therefore, the multimedia device 210B is added to the playing group associated with the mobile terminal 220 (the playing group consisting of the multimedia devices 210A in fig. 3), and thus, in this embodiment, the

multimedia devices

210A and 210B form the playing group associated with the mobile terminal 220.

Thus, in the case of only one mobile terminal 220 as shown in fig. 4 to 6, the composition of the play group is formed and updated according to the movement of the mobile terminal 220, ensuring that the multimedia device playing the audio source is always the closest multimedia device to the mobile terminal 220, thereby enabling a uniform sound field effect to be obtained at the mobile terminal 220.

Referring now to fig. 8, when the mobile terminal 221 first enters the system play range, the

multimedia devices

210A and 210B form a play group. Then, the mobile terminal 222 enters the system play range, and the multimedia device 210C with the mobile terminal 222 in the device play range 211 forms a play group. In some variations, when the mobile terminal 221 and the mobile terminal 222 enter the system play range simultaneously, since the

multimedia devices

210A and 210B having the mobile terminal 221 in the device play range 211 do not intersect with the multimedia device 210C having the mobile terminal 221 in the device play range 211, and none of the multimedia devices 210A to 210C belong to any play group, the

multimedia devices

210A and 210B form a play group associated with the mobile terminal 221, and the multimedia device 210C forms a play group associated with the mobile terminal 222 and has the group play range 202.

Referring now to fig. 9, when the mobile terminal 221 first enters the system play range, the

multimedia devices

210A and 210B form a play group. Then, the mobile terminal 222 enters the system play range, and the mobile terminal 222 is located within the group play range of the play group formed by the

multimedia devices

210A and 210B, and thus, the mobile terminal 222 also associates the play group formed by the

multimedia devices

210A and 210B. In some variations, when the mobile terminal 221 and the mobile terminal 222 enter the system play range simultaneously, since the

multimedia devices

210A and 210B having the mobile terminal 221 in the device play range 211 intersect with the multimedia device 210A having the mobile terminal 222 in the device play range 211, and neither of the

multimedia devices

210A and 210B belongs to any play group, they may be merged (i.e., the

multimedia devices

210A and 210B) to form a play group associated with the mobile terminal 221, and the mobile terminal 222 also associates the play group.

Referring now to fig. 10, unlike fig. 4-9, in the embodiment shown in fig. 10, the device play range 211 of the multimedia device 210A partially overlaps the device play range 211 of the multimedia device 210C, and the device play range 211 of the multimedia device 210B partially overlaps the device play range 211 of the multimedia device 210D. When the mobile terminal 221 first enters the system play range, the

multimedia devices

210A and 210B form a play group. Then, the mobile terminal 222 enters the system play range, the mobile terminal 222 is located in the overlapping region of the device play ranges of the

multimedia devices

210A and 210C, and since the multimedia device 210A has already formed a play group with the multimedia device 210B, only the multimedia device 210C forms a play group associated with the mobile terminal 222. In some variations, when the mobile terminal 221 and the mobile terminal 222 enter the system play range simultaneously, since the

multimedia devices

210A and 210B having the mobile terminal 221 in the device play range 211 intersect with the

multimedia devices

210A and 210C having the mobile terminal 222 in the device play range 211, and none of the multimedia devices 210A to 210C belong to any play group, the multimedia devices 210A to 210C may be merged (i.e., the multimedia devices 210A to 210C) to form a play group associated with the mobile terminal 221, and the mobile terminal 222 also associates the play group (not shown).

Therefore, the multimedia playing control method according to the second embodiment of the present invention can realize the association between one or more mobile terminals that newly enter the system playing range and the playing group, and form a new playing group for the mobile terminal that newly enters the system playing range but is not in any playing group range to provide a multimedia sound source for the mobile terminal; and for the mobile terminal which newly enters the system playing range and is in any playing group range, the mobile terminal is added into the playing group, so that the sound source listening of the original mobile terminal in the playing group is not disturbed.

A third embodiment of the present invention relates to a multimedia playing control method, as shown in fig. 3. Fig. 3 shows the following steps:

step S521: and whether the multimedia equipment identifies the mobile terminal which is associated with the playing group and newly enters the equipment playing range of the multimedia equipment.

If the determination in step S521 is no, S521 is repeatedly executed to perform the determination. If the determination in step S521 is yes, step S522 is executed to continuously determine whether only the mobile terminal exists within the device playing range of the multimedia device.

If the determination in step S522 is yes, step S523 is executed to join the multimedia device into the play group associated with the mobile terminal. If the determination in step S522 is negative, step S524 is executed to determine the number of play groups included in the group play range.

Then, step S525 is executed, whether the number of the determined play groups is greater than or equal to 2 is judged, if yes, step S526 is executed, and the mobile terminal still associates the original play group; if not, step S527 is executed, and the mobile terminal associates with the play group.

A third embodiment of the invention can be seen in fig. 10 to 11. When the mobile terminal 221 moves from the position shown in fig. 10 to the position shown in fig. 11, the multimedia device 210C recognizes the mobile terminal 221 that has already associated a play group (a play group formed by the

multimedia devices

210A and 210B) and newly enters the device play range 211 of the multimedia device 210C. In this embodiment, the mobile terminal 222 is further determined to be included in the device playing range 211 of the multimedia device 210C, and therefore, the number of playing groups having the mobile terminal 221 in the group playing range is further determined, and the number of playing groups having the mobile terminal 221 in the group playing range determined in this embodiment is 2 (the playing group formed by the

multimedia devices

210A and 210B, and the playing group formed by the multimedia device 210C), and the mobile terminal 221 still associates with the original playing group (the playing group formed by the

multimedia devices

210A and 210B). It will be appreciated that the number of play groups determined to be greater than 2 may also operate as described above. In some variations of this embodiment, if only the mobile terminal 221 is included in the device playing range 211 of the multimedia device 210C, the multimedia device 210C is added to the playing group associated with the mobile terminal 221 (the playing group formed by the

multimedia devices

210A and 210B). In some variations of this embodiment, if the determined number of play groups is 1, the mobile terminal 221 associates with the play group.

Therefore, the multimedia playing control method according to the third embodiment of the present invention can realize the association between one or more mobile terminals that have moved within the system playing range and the playing group, and prevent the occurrence of the messy condition of the association between the mobile terminals and the playing group.

The fourth embodiment of the present invention relates to a multimedia playback control method. The fourth embodiment of the present invention can adjust the composition of the play group by any one of the following steps: if the mobile terminal moves out of the group play range of the play group associated with the mobile terminal, releasing the association between the mobile terminal and the play group; if the mobile terminal does not exist in the group playing range of the playing group, releasing the playing group; and if the mobile terminal does not exist in the equipment playing range of the multimedia equipment of the playing group, releasing the multimedia equipment from the playing group and stopping the multimedia equipment.

A fourth embodiment of the present invention will be described with reference to fig. 6 and 7.

As shown in fig. 6 and 7, when the mobile terminal 220 moves from the position shown in fig. 6 to the position shown in fig. 7, since the device playing ranges 211 of the multimedia device 210A and the multimedia device 210C do not overlap, the mobile terminal 220 leaves the playing group formed by the

multimedia devices

210A and 210B shown in fig. 6 during the process of moving from the position shown in fig. 6 to the position shown in fig. 7, and at this time, the association relationship between the playing group formed by the

multimedia devices

210A and 210B and the mobile terminal 220 is released. When the mobile terminal 220 leaves the play group formed by the

multimedia devices

210A and 210B shown in fig. 6, no mobile terminal exists in the group play range of the play group, and thus, the play group is released. Meanwhile, there is no mobile terminal in the device playing range of the

multimedia devices

210A and 210B, and therefore, the

multimedia devices

210A and 210B stop working.

Therefore, the multimedia playing control method according to the fourth embodiment of the present invention can achieve disassociation between the mobile terminal and the multimedia device, release of the playing group, and stop working of the multimedia device according to the determination condition, so as to prevent waste of system resources and improve the effective utilization rate of the system resources.

Fig. 4 to 11 are merely schematic illustrations of various embodiments of the present invention, which may be combined or implemented separately, and the present invention is not limited thereto. The plurality of play groups may play the same multimedia source or different multimedia sources depending on the associated mobile terminals. When a plurality of mobile terminals are associated with the same play group, the multimedia source required by the mobile terminal which enters the play group at first can be the main. In some variations, when multiple mobile terminals are associated with the same play group, the number of multimedia devices (in the play group) in the device play range of each mobile terminal may be determined, and the multimedia source required by the mobile terminal with the largest number may be used as the main multimedia source.

The invention also controls the volume of each multimedia device in the play group in the process of forming the play group and dynamically changing the play group. Specifically, when the mobile terminal associates with an existing play group, the volume setting of the play group is not changed. And when the mobile terminal is associated with a new play group, adjusting the volume setting of each multimedia device in the play group according to the preset volume of the mobile terminal.

A fifth embodiment of the present invention relates to a multimedia playback control method, as shown in fig. 12.

Step S310: whether the play group only includes one multimedia device is determined, if yes, step S320 is executed, and if not, step S330 is executed.

Step S320: and playing the multimedia equipment at the preset volume of the mobile terminal.

Step S330: and enabling each multimedia device in the playing group to play at the volume obtained by subtracting the volume parameter from the preset volume of the mobile terminal, wherein the volume parameter is positively correlated with the number of the multimedia devices in the playing group. For example, when there are two multimedia devices in the play group, each multimedia device is played at a volume obtained by subtracting 3 decibels (volume parameters) from the preset volume of the mobile terminal; when there are three multimedia devices in the play group, each multimedia device is played with the volume obtained by subtracting 4 decibels (volume parameter) from the preset volume of the mobile terminal.

Specifically, when two multimedia playing devices output the same power in unit time

Total energy radiated into space is

According to the formula

Proportional to I, and the relationship between sound pressure level and sound intensity I is SPL-10 log₁₀(I/I_ref) The total sound pressure level SPL_total＝10*log₁₀(2I/I_ref) SPL (sound pressure level received by the user at a distance r from a single sound source) + 3. Similarly, 3 multimedia playing devices work simultaneously at the same output power in unit time and the total sound pressure level SPL_total＝10log₁₀(3I/I_ref)＝SPL+4.7。

N multimedia playing devices in a playing group work simultaneously at the same output power in unit time, and the total sound pressure level is SPL_total＝10*log₁₀(N*I/I_ref)＝SPL+10*log₁₀(N) is provided. If the volume is preset for the mobile terminal by the SPL, the total sound pressure level converted from the total output power in unit time of the N multimedia playing devices is 10 log more than the preset volume₁₀(N) dB. When the number of the multimedia playing devices in the playing group is increased, in order to maintain the total volume of the playing group to be still the preset volume, according to the derivation, the volume of each multimedia playing device in the playing group should be subtracted by 10 log from the preset volume₁₀(N)。

The foregoing embodiments are merely exemplary, and the invention is not limited thereto.

Therefore, the multimedia playing control method according to the fifth embodiment of the present invention can adjust the volume of each multimedia device in the playing group to improve the sound effect playing uniformity.

A sixth embodiment of the present invention relates to a multimedia playback control method, as shown in fig. 13. Fig. 13 shows a flow chart of the interference reduction step of the multi-group playing of multimedia according to an embodiment of the present invention, which includes the following steps:

step S410: the multimedia system has at least two play groups operating.

Step S420: and judging whether the number of the mobile terminals in the play group is less than 3, if so, executing the step S440, otherwise, executing the step S430. Alternatively, step 420 may be omitted.

Step S430: and the playing group plays according to the preset volume of the mobile terminal.

Step S440: detecting the activity state of each user in the play group (the number of the mobile terminals is less than 3).

Step S450: and judging whether all the users in the playing group (with the number of the mobile terminals being less than 3) are in a static state, if so, executing the step S460, and otherwise, executing the step S430.

Specifically, each mobile terminal determines the activity state of the user according to the activity information of the user, the activity information may be heartbeat information of the user, and when the heartbeat information of the user is that the heartbeat per minute is lower than a heartbeat threshold value, it is determined that the user is in a static state, and the heartbeat threshold value is 60 to 70. The activity information may also be step number information of the user, and when the step number information of the user is that the step number of the user is not increased, the user is judged to be in a static state.

Step S460: the volume of each multimedia device in the play group is reduced to a predetermined low volume (e.g., 55 db, 60 db, 65db, etc.).

Therefore, with the multimedia play control method according to the sixth embodiment of the present invention, when a plurality of play groups operate simultaneously, in order to reduce interference between the play groups, according to the user activity information acquired by the mobile terminal, when it is determined that the user is stationary, the volume of the play group where the mobile terminal is located is reduced, so as to reduce interference of the play group with other play groups.

In various embodiments of the present invention, one or more mobile terminals associated with each play group may be worn devices. In other words, if the wearable device is not worn on the user, it indicates that the user no longer wears the device, and the operation may not be performed in the manner described in the present invention. The wearable device can judge whether it is worn on the user through the vital signs or the action signs (heartbeat, step number, etc.).

In various embodiments of the present invention, the mobile terminal may be one or more wearable devices associated with the same application account (in other words, multiple wearable devices worn on the same user may be regarded as one mobile terminal), and the application user sets the preset volume and the multimedia playing preference of the mobile terminal. In some variations, in addition to the association of the same application account, whether the wearable device is worn on the same user may be determined through a vital sign or an action sign detected by the wearable device.

The steps of the above methods are divided for clarity, and the implementation may be combined into one step or split some steps, and the steps are divided into multiple steps, so long as the steps contain the same logical relationship, which is within the protection scope of the present patent; it is within the scope of the patent to add insignificant modifications to the algorithms or processes or to introduce insignificant design changes to the core design without changing the algorithms or processes.

The drawings described above are only schematic representations of various embodiments of the present invention, and are not intended to limit the invention thereto. Those skilled in the art can implement many other variations, which are within the scope of the present invention and will not be described herein.

The present invention also provides a multimedia system, as shown in fig. 4 to 11. The multimedia system includes a plurality of multimedia devices 210A-210D. Each of the multimedia devices 210A-210D has a device play range 211. At least some of the device play ranges 211 of the multimedia devices 210A-210D partially overlap.

In practice, the device playing range of the multimedia device includes, but is not limited to, the audio source played by the multimedia device at a predetermined volume (e.g. 60 db-70 db), which is beyond the device playing range, so that the audio source played by the multimedia device can not be guaranteed to achieve the sound field effect at the predetermined volume of the user. In still other embodiments, the device play range of each multimedia device may also be the wireless connection signal coverage of the multimedia device.

The multimedia system provided by the invention employs any one or more of the above-described method embodiments provided by the invention.

In an exemplary embodiment of the present disclosure, there is also provided a computer-readable storage medium having stored thereon a computer program which, when executed by, for example, a processor, can implement the steps of the electronic prescription flow processing method described in any one of the above embodiments. In some possible embodiments, aspects of the present invention may also be implemented in the form of a program product comprising program code for causing a terminal device to perform the steps according to various exemplary embodiments of the present invention described in the above-mentioned electronic prescription flow processing method section of this specification, when the program product is run on the terminal device.

Referring to fig. 14, a program product 800 for implementing the above method according to an embodiment of the present invention is described, which may employ a portable compact disc read only memory (CD-ROM) and include program code, and may be run on a terminal device, such as a personal computer. However, the program product of the present invention is not limited in this regard and, in the present document, a readable storage medium may be any tangible medium that can contain, or store a program for use by or in connection with an instruction execution system, apparatus, or device.

The program product may employ any combination of one or more readable media. The readable medium may be a readable signal medium or a readable storage medium. A readable storage medium may be, for example, but not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any combination of the foregoing. More specific examples (a non-exhaustive list) of the readable storage medium include: an electrical connection having one or more wires, a portable disk, a hard disk, a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disc read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing.

The computer readable storage medium may include a propagated data signal with readable program code embodied therein, for example, in baseband or as part of a carrier wave. Such a propagated data signal may take many forms, including, but not limited to, electro-magnetic, optical, or any suitable combination thereof. A readable storage medium may also be any readable medium that is not a readable storage medium and that can communicate, propagate, or transport a program for use by or in connection with an instruction execution system, apparatus, or device. Program code embodied on a readable storage medium may be transmitted using any appropriate medium, including but not limited to wireless, wireline, optical fiber cable, RF, etc., or any suitable combination of the foregoing.

Program code for carrying out operations for aspects of the present invention may be written in any combination of one or more programming languages, including an object oriented programming language such as Java, C + + or the like and conventional procedural programming languages, such as the "C" programming language or similar programming languages. The program code may execute entirely on the tenant computing device, partly on the tenant device, as a stand-alone software package, partly on the tenant computing device and partly on a remote computing device, or entirely on the remote computing device or server. In the case of remote computing devices, the remote computing devices may be connected to the tenant computing device through any kind of network, including a Local Area Network (LAN) or a Wide Area Network (WAN), or may be connected to an external computing device (e.g., through the internet using an internet service provider).

In an exemplary embodiment of the present disclosure, there is also provided an electronic device (e.g., a sound box) that may include a processor and a memory for storing executable instructions of the processor. Wherein the processor is configured to execute the steps of the electronic prescription flow processing method in any one of the above embodiments via execution of the executable instructions.

As will be appreciated by one skilled in the art, aspects of the present invention may be embodied as a system, method or program product. Thus, various aspects of the invention may be embodied in the form of: an entirely hardware embodiment, an entirely software embodiment (including firmware, microcode, etc.) or an embodiment combining hardware and software aspects that may all generally be referred to herein as a "circuit," module "or" system.

Compared with the prior art, the invention has the following advantages:

Exemplary embodiments of the present invention are specifically illustrated and described above. It is to be understood that the invention is not to be limited to the disclosed embodiments, but on the contrary, is intended to cover various modifications and equivalent arrangements included within the scope of the appended claims.

Claims

1. A multimedia device playing control method is applied to a multimedia system, and is characterized in that the control method comprises the following steps:

forming at least one play group;

the multimedia system comprises at least two multimedia devices, wherein each multimedia device is provided with a device playing range, the device playing ranges of the multimedia devices form a system playing range, and the device playing ranges of the multimedia devices are partially overlapped;

associating at least one mobile terminal with the same play group, associating each mobile terminal with at most one play group, wherein the mobile terminals associated with the play groups are located in the group play range,

wherein the adjusting the composition of the play group comprises:

if the multimedia system identifies a mobile terminal newly entering the system playing range, judging whether the mobile terminal is positioned in the group playing range of any playing group;

if so, associating the mobile terminal with the play group;

2. The method as claimed in claim 1, wherein said forming at least one play group comprises:

3. The method of claim 1, wherein said adjusting the composition of the play group comprises:

and if the determined number of the playing groups is equal to 1, the mobile terminal associates the playing groups.

4. The control method of claim 1, wherein said adjusting the composition of said play group comprises one or more of:

5. The method of claim 1, wherein the adjusting the volume of the multimedia device within the play group comprises:

6. The method of claim 1, wherein the adjusting the volume of the multimedia device within the play group comprises:

7. The method as claimed in claim 6, wherein adjusting the volume setting of each multimedia device in the play group according to the preset volume comprises:

8. The method as claimed in claim 1, wherein the adjusting the composition of the play group and/or the volume of the multimedia device in the play group according to the corresponding relationship between the mobile terminal and the play group comprises:

9. The control method according to claim 8,

the activity information is heart rate information and/or step number information of the user,

when the heart rate information is lower than the heart rate threshold and/or the step number information is not changed, the user is determined to be in a static state.

10. The control method according to any one of claims 1 to 9, wherein the mobile terminal is a wearable device, and one or more wearable devices are associated with a same application account for setting a preset volume therein by a user.

11. A computer-readable storage medium, characterized in that a computer program is stored thereon, which computer program, when being executed by a processor, performs the control method according to any one of claims 1 to 10.

12. A multimedia system operating in accordance with the control method of any one of claims 1 to 10, the system comprising: