WO2022088957A1 - 一种通信方法、电子设备及系统 - Google Patents

一种通信方法、电子设备及系统 Download PDF

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Publication number
WO2022088957A1
WO2022088957A1 PCT/CN2021/116018 CN2021116018W WO2022088957A1 WO 2022088957 A1 WO2022088957 A1 WO 2022088957A1 CN 2021116018 W CN2021116018 W CN 2021116018W WO 2022088957 A1 WO2022088957 A1 WO 2022088957A1
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WO
WIPO (PCT)
Prior art keywords
electronic device
multimedia content
time
playback
address
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/CN2021/116018
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English (en)
French (fr)
Inventor
陈冲
张硕
王皓
姚松平
姜文浩
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Huawei Technologies Co Ltd
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Huawei Technologies Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Huawei Technologies Co Ltd filed Critical Huawei Technologies Co Ltd
Priority to US18/251,041 priority Critical patent/US20240007211A1/en
Priority to EP21884688.9A priority patent/EP4221276B1/en
Publication of WO2022088957A1 publication Critical patent/WO2022088957A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04H—BROADCAST COMMUNICATION
    • H04H20/00—Arrangements for broadcast or for distribution combined with broadcast
    • H04H20/18—Arrangements for synchronising broadcast or distribution via plural systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/80—Services using short range communication, e.g. near-field communication [NFC], radio-frequency identification [RFID] or low energy communication
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K19/00—Record carriers for use with machines and with at least a part designed to carry digital markings
    • G06K19/06—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
    • G06K19/067—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components
    • G06K19/07—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components with integrated circuit chips
    • G06K19/0723—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components with integrated circuit chips the record carrier comprising an arrangement for non-contact communication, e.g. wireless communication circuits on transponder cards, non-contact smart cards or RFIDs
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L67/00—Network arrangements or protocols for supporting network services or applications
    • H04L67/50—Network services
    • H04L67/56—Provisioning of proxy services
    • H04L67/568—Storing data temporarily at an intermediate stage, e.g. caching
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/72—Mobile telephones; Cordless telephones, i.e. devices for establishing wireless links to base stations without route selection
    • H04M1/724—User interfaces specially adapted for cordless or mobile telephones
    • H04M1/72403—User interfaces specially adapted for cordless or mobile telephones with means for local support of applications that increase the functionality
    • H04M1/72409—User interfaces specially adapted for cordless or mobile telephones with means for local support of applications that increase the functionality by interfacing with external accessories
    • H04M1/72412—User interfaces specially adapted for cordless or mobile telephones with means for local support of applications that increase the functionality by interfacing with external accessories using two-way short-range wireless interfaces
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/72—Mobile telephones; Cordless telephones, i.e. devices for establishing wireless links to base stations without route selection
    • H04M1/724—User interfaces specially adapted for cordless or mobile telephones
    • H04M1/72403—User interfaces specially adapted for cordless or mobile telephones with means for local support of applications that increase the functionality
    • H04M1/72442—User interfaces specially adapted for cordless or mobile telephones with means for local support of applications that increase the functionality for playing music files
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • H04W76/14—Direct-mode setup
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W8/00—Network data management
    • H04W8/005—Discovery of network devices, e.g. terminals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/72—Mobile telephones; Cordless telephones, i.e. devices for establishing wireless links to base stations without route selection
    • H04M1/724—User interfaces specially adapted for cordless or mobile telephones
    • H04M1/72448—User interfaces specially adapted for cordless or mobile telephones with means for adapting the functionality of the device according to specific conditions
    • H04M1/72454—User interfaces specially adapted for cordless or mobile telephones with means for adapting the functionality of the device according to specific conditions according to context-related or environment-related conditions
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M2250/00—Details of telephonic subscriber devices
    • H04M2250/02—Details of telephonic subscriber devices including a Bluetooth® interface

Definitions

  • the present application relates to the field of communication technologies, and in particular, to a communication method, electronic device and system.
  • Embodiments of the present application provide a communication method, electronic device, and system, which solve the problem of large delay when multimedia content is played across devices.
  • the present application provides a communication method, the communication method is applied to a communication system, the communication system includes at least a first electronic device and a second electronic device, the method includes: the first electronic device plays multimedia content; An electronic device broadcasts and transmits the first synchronization information including at least a first address, the first address is the acquisition address of the multimedia content, so that the second electronic device can receive the first synchronization information; An electronic device establishes a short-range wireless communication connection with the second electronic device, and the second electronic device caches the multimedia content at least according to the first address; the first electronic device sends a control command to the second electronic device through the short-range wireless communication connection; the second electronic device The device plays the multimedia content according to the control instruction.
  • the first electronic device before establishing a short-range wireless communication connection with the second electronic device, broadcasts and transmits the first synchronization information including at least the first address, so that the second electronic device receives the first synchronization information,
  • the first electronic device establishes a short-range wireless communication connection with the second electronic device, and the second electronic device caches the multimedia content being played by the first electronic device according to the first address, so as to reduce the time when the multimedia content is switched and played between devices. The delay increases the user experience.
  • the first synchronization information further includes a first playback progress and a first playback speed of the multimedia content; the second electronic device caches the data at least according to the first address in response to a preset operation.
  • the multimedia content includes: the second electronic device caches the multimedia content according to the estimated playback progress and the first address; wherein the estimated playback progress is based on the first playback progress, the first A playback speed, a first time and a second time are determined; the first time is the time when the second electronic device receives the first synchronization information, and the second time is when the second electronic device detects The time at which the preset operation occurred.
  • the second electronic device determines the estimated playback progress based on the first playback progress, the first playback speed, the first time, and the second time, starts to cache the multimedia content from the estimated playback progress, increases the cache speed, and further reduces the Delay in switching playback of multimedia content.
  • the estimated playback progress is also determined based on a correction time; the second electronic device determines the estimated playback progress according to the sum of the first playback progress and the playback correction progress, wherein the The playback correction progress is determined based on the product of the first playback speed and the time difference value, the time difference value is determined based on the difference between the corrected second time and the first time, and the corrected second time is based on the second time
  • the sum of the correction time and the correction time is determined based on the time required to complete the establishment of the short-range wireless communication connection, and/or the statistical analysis of the data.
  • a correction time is added to the determination condition of the estimated playback progress, so that the estimated playback progress is more accurate.
  • the control instruction further carries second synchronization information
  • the second synchronization information includes a second address, a second playback progress, and a second playback speed, the second address, and the second playback progress.
  • the second playback speed are respectively the acquisition address, playback progress and playback speed of the multimedia content played by the first electronic device at the third time
  • the third time is the time when the short-range wireless communication connection is established; so
  • the second electronic device plays the multimedia content according to the control instruction, including: the second electronic device compares the second address, the second playback speed, and the second playback progress with the first address, the first playback A comparison result is obtained from the speed, the estimated playback progress and the cached progress, and the multimedia content is cached or played according to the comparison result; wherein, the cached progress is the multimedia content that has been cached by the second electronic device at the third time progress of the content.
  • the control instruction carries real playback information, so as to ensure the accuracy of switching and playback of multimedia content across devices.
  • the caching or playing the multimedia content according to the comparison result includes: the second electronic device judging whether the comparison result is one or more of the following results: the first The address is different from the second address, and the second play progress is smaller than the estimated play progress and greater than the cache progress; if so, cache the multimedia content according to the second address and the second play progress , and if not, play the multimedia content according to the second playback progress and the second playback speed.
  • the first electronic device includes an NFC module, an NFC tag is set on the second electronic device, and the NFC tag stores identification information of the second electronic device; the preset operation A read operation for the first electronic device to read the identification information of the second electronic device stored on the NFC tag through the NFC module; in response to a preset operation of the first electronic device and the second electronic device
  • the device establishes a short-range wireless communication connection, and the second electronic device caches the multimedia content at least according to the first address in response to a preset operation, including: the first electronic device reads the identifier of the second electronic device information, establishes the short-range wireless communication connection with the second electronic device according to the identification information; the second electronic device detects that the NFC tag is read, caches the location according to the first address the multimedia content.
  • the identification information includes at least one or more of a MAC address of the second electronic device, an IP address of the second electronic device, and an ID of the second electronic device.
  • the first electronic device broadcasts and sends the first synchronization information, including: the first electronic device broadcasts and sends data packets at a first preset sending cycle, if the first address and/or If the playback parameters of the multimedia content change, the first electronic device broadcasts and sends data packets at a second preset sending cycle within a first preset time, wherein the second preset sending cycle is smaller than the first sending cycle.
  • the data packet carries the first synchronization information
  • the multimedia content playback parameter at least includes a playback speed.
  • the data packet also carries a hash value of the ID of the electronic device that meets the requirements, and the hash value is used by the electronic device that receives the data packet to determine whether to parse the data. the data package.
  • the first electronic device before the first electronic device broadcasts and sends the first synchronization information, it further includes: the first electronic device enables a near-field discovery function, and the second electronic device enables a near-field discoverable function , the first electronic device discovers a potential target device, wherein the potential target device is: an electronic device that has been bound or has the same account as the first electronic device and/or has been linked to the first electronic device before the second preset time An electronic device establishing the NFC connection and/or an electronic device having a preset configuration file.
  • enabling the near field discovery function by the first electronic device includes: the first electronic device judging whether to establish the near field communication connection with other electronic devices within a third preset time, If so, enable the near field discovery function.
  • the short-range wireless communication connection is a BLE connection
  • the first electronic device establishes a short-range wireless communication connection with the second electronic device in response to a preset operation, including: the first electronic device The electronic device and the second electronic device respectively use the first preset BLE connection parameter and the second preset BLE connection parameter to establish a BLE connection; wherein the first preset BLE connection parameter includes at least a preset BLE scan period , one or more of preset connection scan duty cycle parameters, and the second preset BLE connection parameter includes a preset BLE broadcast transmission period.
  • the present application provides a communication method.
  • the communication method is used for a first electronic device, and the method includes: the first electronic device plays multimedia content; the first electronic device broadcasts and sends a first synchronization information, so that the second electronic device receives the first synchronization information; wherein, the first synchronization information includes at least a first address, and the first address is an acquisition address of the multimedia content; the first electronic device the device establishes a short-range wireless communication connection with the second electronic device in response to a preset operation; the preset operation is used to trigger the first electronic device to establish the short-range wireless communication connection with the second electronic device, and triggering the second electronic device to cache the multimedia content at least according to the first address; the first electronic device sends a control instruction to the second electronic device through the short-range wireless communication connection, wherein the The control instruction is used to control the second electronic device to play the multimedia content.
  • the first synchronization information further includes a first playback progress and a first playback speed of the multimedia content; the first playback progress and the first playback speed are used to match the first time and The second time determines the estimated playback progress, and the estimated playback progress is used by the second electronic device to cache the multimedia content according to the estimated playback progress and the first address; wherein, the first time is The time when the second electronic device receives the first synchronization information, and the second time is the time when the second electronic device detects that the preset operation occurs.
  • the estimated playback progress is also determined based on a correction time; the estimated playback progress is determined based on the sum of the first playback progress and the playback correction progress, wherein the playback correction progress is based on the The product of the first playback speed and the time difference value is determined, and the time difference value is determined based on the difference between the modified second time and the first time, and the modified second time is based on the sum of the second time and the modified time. It is determined that the correction time is determined based on the time required to complete the establishment of the short-range wireless communication connection, and/or statistical analysis of data.
  • control instruction further carries second synchronization information
  • the second synchronization information includes a second address, a second playback progress, and a second playback speed, the second address, and the second playback progress.
  • the second playback speed are respectively the acquisition address, playback progress and playback speed of the multimedia content played by the first electronic device at the third time
  • the third time is the time when the short-range wireless communication connection is established; so
  • the second synchronization information is used by the second electronic device to compare the second address, the second playback speed, and the second playback progress with the first address, the first playback speed, and the estimated playback and cache progress.
  • the multimedia content is cached or played according to the comparison result; wherein, the cache progress is the progress of the multimedia content that has been cached by the second electronic device at the third time.
  • the caching or playing the multimedia content according to the comparison result includes: the second electronic device judging whether the comparison result is one or more of the following results: the first The address is different from the second address, the second playback progress is smaller than the estimated playback progress, or the second playback progress is greater than the cache progress; if so, according to the second address and the second playback progress The progress buffers the multimedia content, and if not, the multimedia content is played according to the second playback progress and the second playback speed.
  • the first electronic device includes an NFC module, an NFC tag is set on the second electronic device, and the NFC tag stores identification information of the second electronic device; the first electronic device The device establishes a short-range wireless communication connection with the second electronic device in response to a preset operation, including: the preset operation is that the first electronic device reads the second electronic device stored on the NFC tag through an NFC module A reading operation of identification information of an electronic device; the first electronic device reads the identification information of the second electronic device, and establishes the short-range wireless communication connection with the second electronic device according to the identification information.
  • the identification information includes at least one or more of the MAC address of the second electronic device, the IP address of the second electronic device, and the ID of the second electronic device .
  • the first electronic device broadcasts and sends the first synchronization information, including: the first electronic device broadcasts and sends data packets at a first preset sending cycle, if the first address and/or If the playback parameters of the multimedia content change, the first electronic device broadcasts and sends data packets at a second preset sending cycle within a first preset time, wherein the second preset sending cycle is smaller than the first sending cycle.
  • the data packet carries the first synchronization information
  • the multimedia content playback parameter at least includes a playback speed.
  • the data packet also carries a hash value of the ID of the electronic device that meets the requirements, and the hash value is used by the electronic device that receives the data packet to determine whether to parse the data. the data package.
  • the method before the first electronic device broadcasts and sends the first synchronization information, the method further includes: the first electronic device enables a near-field discovery function, and the first electronic device discovers a potential target device, wherein the The potential target device is: an electronic device that has been bound to the first electronic device or has the same account and/or an electronic device that establishes the short-range wireless communication connection with the first electronic device before the second preset time and/or electronic devices with preset profiles.
  • enabling the near field discovery function by the first electronic device includes: the first electronic device judging whether to establish the near field communication connection with other electronic devices within a third preset time, If so, enable the near field discovery function.
  • the short-range wireless communication connection is a BLE connection; the first electronic device establishes a short-range wireless communication connection with the second electronic device in response to a preset operation, including: the first electronic device The electronic device uses preset BLE connection parameters to establish a BLE connection with the second electronic device; wherein, the preset BLE connection parameters include at least a preset BLE scan period and a preset connection scan duty cycle parameter. one or more.
  • the present application provides a communication method, the communication method being used for a first electronic device, the method comprising: the second electronic device receiving first synchronization information, the first synchronization information being the first synchronization information.
  • the first synchronization information includes at least a first address, and the first address is the acquisition address of the multimedia content; the multimedia content is the content played by the first electronic device; the second electronic device responds The multimedia content is cached at least according to the first address in a preset operation; the preset operation is used to trigger the first electronic device to establish the short-range wireless communication connection with the second electronic device, and trigger the
  • the second electronic device caches the multimedia content at least according to the first address; the second electronic device plays the multimedia content according to a control instruction, and the control instruction is that the first electronic device uses the short-range wireless A communication connection is sent to the second electronic device.
  • the first synchronization information further includes a first playback progress and a first playback speed of the multimedia content; the first playback progress and the first playback speed are used to match the first time and The second time determines the estimated playback progress, and the second electronic device caches the multimedia content according to the estimated playback progress and the first address; wherein, the first time is when the second electronic device receives The time of the first synchronization information, and the second time is the time when the second electronic device detects that the preset operation occurs.
  • the estimated playback progress is also determined based on a correction time; the estimated playback progress is determined based on the sum of the first playback progress and the playback correction progress, wherein the playback correction progress is based on the The product of the first playback speed and the time difference value is determined, and the time difference value is determined based on the difference between the modified second time and the first time, and the modified second time is based on the sum of the second time and the modified time. It is determined that the correction time is determined based on the time required to complete the establishment of the short-range wireless communication connection, and/or statistical analysis of data.
  • control instruction further carries second synchronization information
  • the second synchronization information includes a second address, a second playback progress, and a second playback speed, the second address, and the second playback progress.
  • the second playback speed are respectively the acquisition address, playback progress and playback speed of the multimedia content played by the first electronic device at the third time
  • the third time is the time when the short-range wireless communication connection is established; so
  • the second electronic device compares the second address, the second playback speed, the second playback progress and the first address, the first playback speed, the estimated playback and the cache progress to obtain a comparison result, and caches the results according to the comparison result. or play the multimedia content; wherein, the cache progress is the progress of the multimedia content that has been cached by the second electronic device at the third time.
  • the caching or playing the multimedia content according to the comparison result includes: the second electronic device judging whether the comparison result is one or more of the following results: the first The address is different from the second address, the second playback progress is smaller than the estimated playback progress, or the second playback progress is greater than the cache progress; if so, according to the second address and the second playback progress The progress buffers the multimedia content, and if not, the multimedia content is played according to the second playback progress and the second playback speed.
  • the first electronic device includes an NFC module, an NFC tag is set on the second electronic device, and the NFC tag stores identification information of the second electronic device; the second electronic device The device caches the multimedia content at least according to the first address in response to a preset operation, including: the preset operation is that the first electronic device reads the second electronic device stored on the NFC tag through an NFC module The operation of reading the identification information of the device; the second electronic device detects the operation that the NFC tag is read, and caches the multimedia content according to the first address.
  • the identification information includes at least one or more of the MAC address of the second electronic device, the IP address of the second electronic device, and the ID of the second electronic device .
  • the short-range wireless communication connection is a BLE connection
  • the first electronic device establishes a short-range wireless communication connection with the second electronic device in response to a preset operation, including:
  • the second electronic device uses preset BLE connection parameters to establish a BLE connection respectively; wherein the preset BLE connection parameters include a preset BLE broadcast sending cycle.
  • the present application provides an electronic device, including a memory and a processor, wherein executable code is stored in the memory, and the processor executes the executable code to implement the second or third aspect of the present application provided method.
  • the present application provides a computer-readable storage medium on which a computer program is stored, and when the computer program is executed in a computer, the computer is made to execute the method provided in the second aspect or the third aspect of the present application.
  • the present application provides a computer program or computer program product, wherein the computer program or computer program product includes instructions that, when executed, implement the method provided in the second aspect or the third aspect of the present application.
  • FIG. 1 is a schematic diagram of the architecture of a communication system provided by an embodiment of the present application.
  • FIG. 2 is a schematic diagram of an application scenario provided by an embodiment of the present application.
  • FIG. 3 is a flowchart of a communication method in the scenario shown in FIG. 2 provided by an embodiment of the present application;
  • FIG. 4 is a schematic diagram of an actual playback progress provided by an embodiment of the present application that does not fall into a buffered multimedia content segment;
  • FIG. 5 is a schematic block diagram of an electronic device according to an embodiment of the present application.
  • FIG. 6 is a schematic block diagram of an electronic device according to an embodiment of the present application.
  • the communication system 100 includes N electronic devices, such as electronic device 1 and electronic device 2 """ electronic device N, where N is a positive integer greater than 1, and the N electronic devices communicate through a communication network connect.
  • the above-mentioned communication network may be a wired communication network or a wireless communication network, may be a local area network (local area networks, LAN), or may be a wide area network (wide area networks, WAN), such as the Internet.
  • the above-mentioned communication network can be implemented using any known network communication protocol, and the above-mentioned communication protocol can be various wired or wireless communication protocols, such as Ethernet, universal serial bus (USB), Firewire (Firewire), global Mobile communication system (global system for mobile communications, GSM), general packet radio service (general packet radio service, GPRS), code division multiple access (code division multiple access, CDMA), wideband code division multiple access (wideband code division) multiple access, WCDMA), time division code division multiple access (time-division code division multiple access, TD-SCDMA), long term evolution (long term evolution, LTE), Bluetooth, wireless fidelity (wireless fidelity, Wi-Fi), near Near field communication (NFC), voice over Internet protocol (VoIP), communication protocols that support network s
  • the electronic device 1 is connected in communication with the electronic device 2.
  • the electronic device 1 can switch the multimedia content played by the electronic device 1 to the electronic device 2 for playback.
  • the electronic device 1 sends a control instruction to the electronic device 2 to control the playback of the multimedia content.
  • the way in which the electronic device 1 and the electronic device 2 establish a communication connection can be a short-range communication connection.
  • the electronic device 1 obtains the identification information of the electronic device 2
  • the electronic device 1 establishes a communication connection with the electronic device 2
  • the electronic device 2 Play or play the multimedia content to be played on the electronic device 2 to realize cross-device playback of "one-touch switching playback device" of media data.
  • both the electronic device 1 and the electronic device 2 have short-range communication functions, such as near field communication (NFC), Bluetooth, ZigBee (ZigBee), wireless fidelity (Wi-Fi) , Ultra Wideband (UWB) or Infrared Data Association (IrDA) network and other short-range communication functions.
  • the electronic device 1 can be a smart phone, a tablet computer, a personal digital assistant (PDA), a wearable electronic device and other electronic devices; the electronic device 2 can be a smart speaker, a smart TV, a notebook computer, a car playback device, etc. functional device.
  • the multimedia content may include text content, picture content, video content, audio content, and the like.
  • the following describes the cross-device playback method of media data provided by the embodiment of the present application by taking the electronic device 1 as a smart phone, the electronic device 2 as a smart speaker, and the media data as audio data as an example.
  • FIG. 2 is a schematic diagram of an application scenario provided by an embodiment of the present application.
  • the executive body includes a smart phone 31 and a smart speaker 32, and both the smart phone 31 and the smart speaker have NFC and Bluetooth connection functions.
  • the smart phone 31 plays the song "Song 1”
  • the smart phone 31 reads the identification information (eg MAC address information) of the smart speaker 32 through NFC, and the smart phone 31 establishes a Bluetooth connection with the smart speaker 32 according to the identification information, and plays the The song "Song 1" is switched to the smart speaker 32 for playback, realizing the function of "one-touch sound transmission".
  • the identification information eg MAC address information
  • FIG. 3 is a flowchart of a communication method in the scenario shown in FIG. 2 provided by an embodiment of the present application.
  • the method includes step S301.
  • the smart speaker enables the near-field device discovery function, for example, the Bluetooth connection function is turned on, and the device discovery option is turned on.
  • This step can be manually turned on by the user or the smart speaker is powered on. That is, the implementation is automatically turned on.
  • step S302 the smart phone detects whether the "specific condition 1" is met, and if so, the near-field device discovery function is enabled.
  • the above-mentioned "Specific Condition 1" can be that the smartphone currently has multimedia content playing and the device has a local configuration file or record of "One Touch Transsion” and has used “One Touch Transsion” recently (for example, within 10 days).
  • the smartphone satisfies "Specific Condition 1”
  • the near-field device discovery function is enabled, for example, the Bluetooth connection function is enabled to scan for nearby devices that can be connected.
  • the near-field device discovery function can be automatically turned on without the user's manual operation, the user's operation frequency is reduced, and the user experience is improved.
  • step S302 can also be replaced with the smart phone enabling the near-field device discovery function according to the user's instruction.
  • the user manually turns on the near-field device discovery function of the smartphone, and the user chooses whether to enable the near-field device discovery function of the smartphone according to his own needs, so as to avoid enabling the near-field device discovery function of the smartphone when it is not necessary, and reduce the performance of the smartphone. consumption.
  • step S303 the smartphone discovers a near-field device, and the near-field device satisfies the "specific condition 2" at the same time, then step S303a is executed.
  • the meaning of the smartphone discovering near-field devices is that the smartphone scans and discovers nearby devices that can be connected by Bluetooth, that is, searches and discovers electronic devices that can be connected to within the Bluetooth effective connection range of the Bluetooth smartphone. Meanwhile, in order to save the energy consumption of the smart phone, "specific condition 2" is set in the smart phone, and only when the specific condition 2 is satisfied, the first synchronization information is broadcast and sent.
  • the "specific condition" can be that there is a potential target device in the near-field devices discovered by the smartphone and/or the smartphone and the potential target device have recently (for example, within 10 days) used the "one-touch voice transmission" function, wherein the potential target device is A smart speaker with NFC and Bluetooth functions that has been bound to a smartphone, or a smart speaker with NFC and Bluetooth functions that has the same account as the smartphone (for example, the same Huawei account).
  • the smart phone still sends the media data synchronization information to the smart speaker side, which increases the energy consumption of the smart phone.
  • the meaning of the potential target device is: a smart speaker that can communicate and connect with a smartphone to realize the function of "one-touch sound transmission", but has not been identified as a smart speaker of the target device.
  • the smart phone broadcasts and sends multimedia content synchronization information.
  • the multimedia content synchronization information (that is, the first synchronization information) at least includes: a first address, a first playback speed, and a first playback progress, where the first address, the first playback speed, and the first playback progress are respectively Get the address (for example, the URI (Uniform Resource Identifier) of the multimedia content data or the URL (Uniform Resource Locator) of the multimedia content data), the playback progress of the multimedia content (for example, the time when the multimedia content is played) stamp), the playback speed of the multimedia content (eg, the playback frame rate of the media content).
  • the multimedia content synchronization information that is, the first synchronization information
  • the multimedia content synchronization information at least includes: a first address, a first playback speed, and a first playback progress, where the first address, the first playback speed, and the first playback progress are respectively Get the address (for example, the URI (Uniform Resource Identifier) of
  • the smartphone broadcasts and sends a broadcast data packet including the above-mentioned multimedia content synchronization information
  • the broadcast period is a preset first threshold broadcast period to send the broadcast data packet
  • the first threshold may be 1024ms.
  • the smartphone may broadcast and send data packets, such as sending data packets through BLE broadcast or sending data packets through local area network, broadcast, etc., which are not limited in this application.
  • the broadcast data packet further includes a hash value of the ID of the potential target device, restricting that only the potential target device can process and parse the broadcast data packet to obtain multimedia content synchronization information, and limit the broadcast influence range.
  • Step S304 the smart speaker updates the local multimedia content information according to the received first synchronization information.
  • the smart speaker receives the broadcast data packet, parses the broadcast data packet to obtain multimedia content synchronization information, and updates the local multimedia content information based on the first synchronization information.
  • the smart speaker receives the broadcast data packet, and verifies whether the hash value of the broadcast data packet is the same as the hash value of the ID of the smart speaker. If so, parse the broadcast data packet to obtain the first synchronization information, and update it according to the first synchronization information Locally saved multimedia content information.
  • Step S305 the smartphone determines whether the acquisition address of the multimedia content and/or the playback speed of the multimedia content has been updated, and if so, sends a broadcast data packet containing the synchronization information of the multimedia content at a preset sending period within a preset time.
  • the broadcast data packet containing the synchronization information of the multimedia content is sent in the transmission period.
  • the smartphone sends the broadcast data packet containing the synchronization information of the multimedia content at the preset transmission period within 20 seconds.
  • the preset transmission period here is 64ms
  • the preset transmission period here is smaller than the original broadcast transmission period of the smartphone, for example, the original broadcast transmission period is 128ms.
  • Step S306 the smart phone acquires the identification information of the smart speaker, the smart phone establishes a Bluetooth connection with the smart speaker, and simultaneously executes the smart speaker in parallel to start caching the multimedia content according to the first synchronization information.
  • the smart speaker is provided with an NFC tag (also called an NFC patch), and the NFC tag stores at least the identification information of the smart speaker, and the identification information can be the MAC (media access control, media access control) address of the smart speaker. Or information such as the device name or IP address that can uniquely identify the smart speaker. Define the location of the smart speaker's NFC tag as the NFC sensing area.
  • the smartphone when the user wants to switch the song being played on the smartphone to the smart speaker, he can move the smartphone close to/touch the NFC sensing area of the smart speaker.
  • the smartphone reads the identification information of the smart speaker from the NFC tag by transmitting a near-field signal, such as the MAC address of the smart speaker.
  • the smart phone can determine that the target device is a smart speaker by reading the MAC address of the smart speaker, then the smart phone establishes a Bluetooth connection with the smart speaker according to the identification information of the smart speaker, and converts the song being played on the smart phone. Cast to smart speakers for playback.
  • the smartphone has turned on the NFC function.
  • the user can manually turn on the NFC function or set it to automatically turn on the NFC function when playing a song.
  • the smart speaker When the smart speaker detects that the NFC tag is read, it starts to cache the media data according to the first synchronization information, and realizes the parallel execution of Bluetooth connection and data transmission. Compared with the existing cross-device playback method of media data, the Bluetooth connection and Then, the serial solution of media data transmission is carried out, which greatly reduces the delay of media data playback across devices, realizes seamless switching of media data between smartphones and smart speakers, and improves user experience.
  • step S306 includes S306.a.
  • the smart phone starts a Bluetooth connection scan, and requests a Bluetooth connection with the smart speaker.
  • S306.b the smart speaker executes in parallel to open the Bluetooth connection scan and establishes a connection with the server storing the multimedia content data according to the URI of the multimedia content data in the first synchronization information, and then according to the playback progress of the multimedia content and the playback of the multimedia content
  • the speed gets the estimated playback progress when the smartphone and the smart speaker establish a Bluetooth connection and switch the multimedia content to the Bluetooth speaker for playback, and then the smart speaker starts to cache the media data from the estimated playback progress node.
  • T delta fix represents the time difference correction value, which can be obtained according to the time required to establish a Bluetooth connection between the smartphone and the smart speaker.
  • the correction value T delta fix is -400ms.
  • the correction value is obtained through statistical analysis of a large amount of data.
  • T current can be replaced with the time on the smartphone when the smartphone reads the identification information of the smart speaker
  • T last update can be replaced with the time when the smartphone reads the identification information of the smart speaker, The last time on the smartphone that the multimedia content synchronization message was sent.
  • the smart speaker when it actually caches multimedia content, it can preset the playback progress in advance based on the estimated playback progress and then cache it. For example, if the preset playback progress is 1s and the estimated playback progress is 25s, then The smart speaker starts to cache multimedia content from 24s to make the multimedia content perceived by the user play more coherently and increase the user experience.
  • the smart speaker sets optimized Bluetooth connection parameters, such as increasing the scanning frequency of the Bluetooth connection, so that the smart phone and the smart speaker can establish a Bluetooth connection faster.
  • the smart phone when the smart phone obtains the identification information of the smart speaker, the smart phone sets optimized Bluetooth connection parameters, such as increasing the connection scan frequency and/or increasing the connection scan duty cycle parameter, etc., to further speed up the Bluetooth connection between the smart phone and the smart speaker. connection speed.
  • swipe reads the identification information of the Bluetooth speaker through NFC
  • triggering method for establishing a Bluetooth connection between the smartphone and the smart speaker
  • other triggering methods can also be used.
  • the button for the Bluetooth connection is triggered or a voice command to establish a Bluetooth connection with the smart speaker is detected, etc.
  • Step S307 the smart phone sends a control command to the smart speaker through Bluetooth to control the smart speaker to play media data.
  • step S307 further includes step S307.a, the smartphone stops playing the multimedia content. That is, when the smartphone completes the Bluetooth connection with the smart speaker, it stops playing the multimedia content, and switches the multimedia content to the smart speaker for playback.
  • Step S308 the smart speaker starts to play the multimedia content according to the estimated playback progress, and plays the multimedia content according to the control instruction sent by the received smart phone.
  • step S307 further includes the smart phone sending the actual playback progress of the multimedia content to the smart speaker, where the actual playback progress is the playback progress when the smart phone stops playing the multimedia content.
  • the smart phone when the smartphone completes the Bluetooth connection with the smart speaker, it stops playing multimedia content, and the time on the smart speaker when the smartphone completes the Bluetooth connection with the smart speaker is defined as the third time, and the actual playback progress is the third time.
  • the playback progress of the time multimedia content, and the actual playback progress is the second playback progress.
  • step S307.1 The smart speaker compares the actual playback progress, the estimated playback progress and the cache progress (the cache progress is the progress of the multimedia content cached by the smart speaker at the third time) to obtain a comparison result, and determine whether the comparison result is the actual playback. If the progress is less than the estimated play progress or the actual play progress is greater than the cache progress, if so, go to step S308.2, if not, go to step S308.1, S308.1, the smart speaker re-caches the multimedia content according to the actual play progress; S308.2, according to Actual playback progress to play multimedia content. As shown in FIG. 4 , that is, the actual playback progress does not fall within the buffered multimedia content segment.
  • the progress can be represented by a time stamp. For example, if a song is played for 45 seconds, the playback progress can be represented as 45 seconds. Cache to 50 seconds, the cache progress can be expressed as 50 seconds. If the actual playback progress does not fall within the cached multimedia content segment, the actual playback progress is less than the estimated playback progress or the actual playback progress is greater than the cached progress. For example, if the estimated playback progress is 25 seconds and the cache progress is 45 seconds, the cached multimedia content segment is 35 seconds to 55 seconds. If the actual playback progress is less than 35 seconds or greater than 55 seconds, the smart speaker needs to The actual playback progress caches the multimedia content.
  • Playing media data according to the actual playback progress means that the media data is played from the actual playback time. For example, if the estimated playback progress is 43 seconds, the smart speaker has cached the song from 43 seconds, and the time playback progress is 45 seconds, then the smart speaker The speaker starts playing the song at 45 seconds.
  • step S307 further includes sending the smart phone to the smart speaker the address for obtaining the actual multimedia content (for example, the URI of the actual multimedia content data, or the URL of the actual multimedia content data).
  • the smart speaker compares the received actual multimedia content data acquisition address to determine whether the acquisition address of the multimedia content in the first synchronization information received for the last time is consistent when the smart speaker detects that the NFC tag has been read , and cache/play multimedia content according to the comparison result.
  • the acquisition address of the actual multimedia content is the same as the acquisition address of the multimedia content in the multimedia content synchronization information received last time when the smart speaker detects that the NFC tag is read, then the multimedia content is played according to the actual playback progress; the actual multimedia content When the smart speaker detects that the NFC tag has been read, the acquisition address of the multimedia content in the last received multimedia content synchronization information is inconsistent, and the multimedia content is cached according to the acquisition address of the actual multimedia content and the actual playback progress. It should be explained that the actual acquisition address of the multimedia content is the acquisition address of the multimedia content when the smart phone and the smart speaker successfully establish a Bluetooth connection.
  • step S307 further includes the smart phone sending the actual playback speed of the multimedia content to the smart speaker.
  • step S307.3 is included.
  • the smart speaker plays the media data according to the playback speed of the actual multimedia content. It can be understood that the actual playback speed of the multimedia content is the playback speed of the multimedia content when the smart phone and the smart speaker successfully establish a Bluetooth connection.
  • the actual playback progress of the multimedia content, the address for obtaining the actual multimedia content, and the playback speed of the actual multimedia content are sent It can also be carried in the control command and sent to the smart speaker.
  • step S309 is further included: the smart phone sends the multimedia content information to be played to the smart speaker.
  • the smart speaker plays the current multimedia content and caches the multimedia content to be played according to the received multimedia content information to be played.
  • the song being played is "Song 1”
  • the next song in the playlist is "Song 2”
  • the loop mode is list loop
  • the next song to be played is judged to be "Song 2”
  • the smart speaker While playing "Song 1"
  • the next playing song “Song 2” is cached.
  • Step S309 is performed after step S308 or step S308.1.
  • step S311 is further included: the smart phone caches the multimedia content according to the playlist and the playback loop mode.
  • Step S312 the smart phone approaches/touches the smart speaker again to read the identification information of the smart speaker, then disconnects the connection with the smart speaker, and the smart phone obtains the playback progress of the multimedia content when the connection is disconnected. Playback progress Play multimedia content.
  • step S313 the smart speaker detects that the smart phone is approached/touched again to read the identification information of the smart speaker, then disconnects the connection with the smart phone, stops playing the multimedia content, and stops caching the multimedia content.
  • Step S311 is performed after step S308 or step S308.1.
  • step S314 is further included: the smart phone obtains the real-time playback progress of the multimedia content on the smart speaker.
  • Step S315 the smart phone approaches/touches the smart speaker again to read the identification information of the smart speaker, then disconnects the connection with the smart speaker, the smart phone obtains the real-time playback progress when the connection is disconnected, caches the multimedia content, and the smart phone plays the multimedia content .
  • Step S316 the smart speaker detects that the smart phone approaches/touches again to read the identification information of the smart speaker, then disconnects the connection with the smart phone, stops playing the multimedia content, and stops caching the multimedia content.
  • Step S314 is performed after step S308 or step S308.1.
  • step S317 is further included: the smart phone approaches/touches the smart speaker again to read the identification information of the smart speaker, then disconnects the connection with the smart speaker, and the smart phone obtains the playback of the multimedia content when the connection is disconnected progress, the smart phone caches the multimedia content according to the playback progress of the multimedia content, and the smart phone plays the multimedia content.
  • step S3108 the smart speaker detects that the smart phone is approached/touched again to read the identification information of the smart speaker, then disconnects the connection with the smart speaker, stops playing the multimedia content, and stops caching the multimedia content.
  • Step S317 is performed after step S308 or step S308.1.
  • step S306 the "simultaneous parallel execution of the smart speakers to start caching the multimedia content according to the multimedia content synchronization information" may be performed before the smart phone reads the identification information of the smart speakers. That is, the smart speaker starts to cache multimedia content data according to the multimedia content synchronization information before detecting that the NFC tag is read.
  • the smart speaker detects that the NFC tag is read, it only needs to perform the Bluetooth connection process between the smartphone and the smart speaker. That is, after the Bluetooth connection is completed, the smart speaker can obtain the playback progress of the multimedia content and play the cached multimedia content data according to the playback progress, thereby further reducing the delay.
  • step S305.1 is further included after step S305.
  • the smart phone and/smart speaker obtain the network status of the communication network where they are located, and execute step S306.1 or step S306.2 according to the network status judgment.
  • Step S306.1 is: the smart phone obtains the identification information of the smart speaker, the smart phone establishes a Bluetooth connection with the smart speaker, and concurrently executes the smart speaker to start caching the multimedia content according to the multimedia content synchronization information.
  • Step S306.2 is: starting to cache the multimedia content according to the media data synchronization information, acquiring the identification information of the smart speaker by the smart phone, and establishing a Bluetooth connection between the smart phone and the smart speaker.
  • step S306.1 and step S306.2 execute step S307 to step S308, or step S307 to step S308.1, or step S307 to step S310, or step S307 to step S313, or step S307 to step S316, or step S307 Go to step S318.
  • the network state includes the network speed
  • judging and executing step S306.1 or step S306.2 according to the network state is specifically: judging whether the network speed is greater than a threshold (for example, 1M/s), if so, execute step S306.1, if not Step S306.2 is executed. That is, when the network status is good, the "smart speaker starts to cache the data of multimedia content according to the multimedia content synchronization information" can be carried out after the smartphone obtains the identification information of the smart speaker.
  • a threshold for example, 1M/s
  • the content synchronization information starts to cache the data of multimedia content is carried out before the smart phone obtains the identification information of the smart speaker, to ensure that the data of the smart speaker cache multimedia content is completed before the Bluetooth connection between the smart speaker and the smart phone is completed, reducing the cross-device playback of media data. Delay.
  • the above-mentioned Bluetooth is BLE (Bluetooth Low Energy, Bluetooth Low Energy), that is, both the smartphone and the smart speaker support BLE technology, and the BLE connection rate It is 300ms or faster, while the traditional Bluetooth connection rate is 3s, using BLE connection to achieve faster connection speed and lower energy consumption.
  • BLE Bluetooth Low Energy, Bluetooth Low Energy
  • the present application provides a computer-readable storage medium on which a computer program is stored.
  • the computer program is executed in a computer, the computer is made to execute the communication method provided above.
  • the present application provides a computer program or computer program product, wherein the computer program or computer program product includes instructions that, when executed, implement the communication method provided above.
  • FIG. 5 is a schematic block diagram of an electronic device according to an embodiment of the present application.
  • the electronic device 500 includes a processor 501 , a memory 502 , an NFC module 503 and a BLE module 504 .
  • the memory is used to store computer-executed instructions; when the electronic device 500 is running, the processor 501 executes the computer-executed instructions stored in the memory 502, so that the electronic device 500 executes the instructions in FIG. 3 . Method steps on the smartphone side.
  • the NFC module 503 is used to read the NFC tag to obtain the content on the NFC tag (for example, read the NFC tag on the smart speaker to obtain the identification information of the smart speaker);
  • the BLE module 504 is used to broadcast and send information (for example, broadcast Send multimedia content synchronization information) and establish a Bluetooth connection with the electronic device 2 (such as a smart speaker); so as to send a control command to the electronic device 2 through the Bluetooth connection.
  • the electronic device 500 further includes a communication bus 505 , wherein the processor 501 can be connected to the memory 502 , the NFC module 503 and the BLE module 504 through the communication bus 505 , so that the computer-executable instructions stored according to the memory 502 can be implemented. , to control the FC module 503 and the BLE module 504 accordingly.
  • FIG. 6 is a schematic block diagram of an electronic device according to an embodiment of the present application.
  • the electronic device 600 includes a processor 601 , a memory 602 , an NFC tag 603 and a BLE module 604 .
  • the memory is used to store computer-executed instructions; when the electronic device 600 is running, the processor 601 executes the computer-executed instructions stored in the memory 602, so that the electronic device 600 executes the instructions in FIG. 3 .
  • the method steps shown on the smart speaker side the NFC tag 603 is used to store the identification information of the electronic device and can be detected by the electronic device 600 when read; the BLE module 604 is used to establish a BLE connection with the electronic device 1 to receive control commands sent by the electronic device.
  • the electronic device 600 further includes a communication bus 605 , wherein the processor 601 can be connected to the memory 602 , the NFC tag 603 and the BLE module 604 through the communication bus 605 , so that the computer-executable instructions stored according to the memory 602 can be implemented. , to control the NFC tag 603 and the BLE module 604 accordingly.
  • processor in the embodiments of the present application may be a central processing unit (central processing unit, CPU), and may also be other general-purpose processors, digital signal processors (digital signal processors, DSP), application-specific integrated circuits (application specific integrated circuit, ASIC), field programmable gate array (field programmable gate array, FPGA) or other programmable logic devices, transistor logic devices, hardware components or any combination thereof.
  • CPU central processing unit
  • DSP digital signal processors
  • ASIC application specific integrated circuit
  • FPGA field programmable gate array
  • a general-purpose processor may be a microprocessor or any conventional processor.
  • the method steps in the embodiments of the present application may be implemented in a hardware manner, or may be implemented in a manner in which a processor executes software instructions.
  • Software instructions can be composed of corresponding software modules, and software modules can be stored in random access memory (RAM), flash memory, read-only memory (ROM), programmable read-only memory (programmable rom) , PROM), erasable programmable read-only memory (erasable PROM, EPROM), electrically erasable programmable read-only memory (electrically EPROM, EEPROM), registers, hard disks, removable hard disks, CD-ROMs or known in the art in any other form of storage medium.
  • An exemplary storage medium is coupled to the processor, such that the processor can read information from, and write information to, the storage medium.
  • the storage medium can also be an integral part of the processor.
  • the processor and storage medium may reside in an ASIC.
  • a software module can be placed in random access memory (RAM), internal memory, read only memory (ROM), electrically programmable ROM, electrically erasable programmable ROM, registers, hard disk, removable disk, CD-ROM, or any other in the technical field. in any other known form of storage medium.
  • RAM random access memory
  • ROM read only memory
  • electrically programmable ROM electrically erasable programmable ROM
  • registers hard disk, removable disk, CD-ROM, or any other in the technical field. in any other known form of storage medium.

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Abstract

本申请提供一种通信方法，该通信方法应用于通信系统，该通信系统至少包括第一电子设备和第二电子设备，所述方法包括：第一电子设备播放多媒体内容；第一电子设备广播发送至少包括第一地址的第一同步信息，以使第二电子设备接收到该第一同步信息；其中，该第一地址为多媒体内容的获取地址；响应于预设操作第一电子设备与第二电子设备建立近距离无线通信连接和第二电子设备至少根据第一地址缓存多媒体内容；第一电子设备通过近距离无线通信连接向第二电子设备发送控制指令；第二电子设备根据控制指令播放多媒体内容。本申请的通信方法，实现降低多媒体内容在设备间进行切换播放时的延迟，增加用户使用体验。

Description

一种通信方法、电子设备及系统
本申请要求于2020年10月28日提交中国国家知识产权局、申请号为202011176711.6、申请名称为“一种通信方法、电子设备及系统”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本申请涉及通信技术领域，尤其涉及一种通信方法、电子设备及系统。
背景技术
随着智能手机与智能音箱的普及，智能手机上在线播放的音乐，可以转到智能音箱上进行播放，实现媒体播放的跨设备切换。
现有的智能手机与智能音箱实现媒体播放的跨设备切换时，需要先建立智能手机与智能音箱的蓝牙连接，然后再通过蓝牙传输流媒体数据，流媒体数据传输完成后智能音箱上才可以播放流媒体实现媒体播放的跨设备切换。可见其存在着由于蓝牙连接和媒体数据传输串行执行造成媒体播放的跨设备切换有较大延迟，造成用户体验很差的问题。
发明内容
本申请的实施例提供一种通信方法、电子设备及系统，解决了多媒体内容跨设备播放时延迟较大的问题。
第一方面，本申请提供了一种通信方法，该通信方法应用于通信系统，该通信系统至少包括第一电子设备和第二电子设备，所述方法包括：第一电子设备播放多媒体内容；第一电子设备广播发送至少包括第一地址，所述第一地址为所述多媒体内容的获取地址的第一同步信息，以使第二电子设备接收到该第一同步信息；响应于预设操作第一电子设备与第二电子设备建立近距离无线通信连接和第二电子设备至少根据第一地址缓存多媒体内容；第一电子设备通过近距离无线通信连接向第二电子设备发送控制指令；第二电子设备根据控制指令播放多媒体内容。
本申请实施例，第一电子设备在与第二电子设备建立近距离无线通信连接前，广播发送至少包括第一地址的第一同步信息，以使第二电子设备接收到该第一同步信息，实现并行执行，第一电子设备与第二电子设备建立近距离无线通信连接和第二电子设备根据第一地址缓存第一电子设备正在播放的多媒体内容，实现降低多媒体内容在设备间进行切换播放时的延迟，增加用户使用体验。
在一个可能的实现中，所述第一同步信息还包括所述多媒体内容的第一播放进度和第一播放速度；所述第二电子设备响应于预设操作至少根据所述第一地址缓存所述多媒体内容，包括：所述第二电子设备根据所述预估播放进度和所述第一地址缓存所述多媒体内容；其中，所述预估播放进度基于所述第一播放进度、所述第一播放速度、第一时间和第二时间确定；所述第一时间为所述第二电子设备接收到所述第一同步信息的时间，所述第二时 间为所述第二电子设备检测到所述预设操作发生的时间。根据该可能的实现，第二电子设备基于第一播放进度、第一播放速度、第一时间和第二时间确定预估播放进度，从预估播放进度开始缓存多媒体内容，增加缓存速度，进一步降低多媒体内容切换播放的时延。
在一个可能的实现中，所述预估播放进度还基于修正时间确定；所述第二电子设备根据所述第一播放进度与播放修正进度的和确定所述预估播放进度，其中，所述播放修正进度基于所述第一播放速度与时间差值的乘积确定，所述时间差值基于修正第二时间和所述第一时间的差确定，所述修正第二时间基于所述第二时间和修正时间的和确定，所述修正时间基于所述近距离无线通信连接完成建立所需的时间，和/或数据统计分析确定。根据该可能的实现，预估播放进度的确定条件增加了修正时间，使预估播放进度更加准确。
在另一个可能的实现中，所述控制指令还携带第二同步信息，所述第二同步信息包括第二地址、第二播放进度、第二播放速度，所述第二地址、第二播放进度、第二播放速度分别为在第三时间所述第一电子设备播放的多媒体内容的获取地址、播放进度和播放速度，所述第三时间为所述近距离无线通信连接完成建立的时间；所述第二电子设备根据所述控制指令播放所述多媒体内容，包括：所述第二电子设备比较所述第二地址、第二播放速度、第二播放进度和所述第一地址、第一播放速度、预估播放进度与缓存进度得出比较结果，根据所述比较结果缓存或播放所述多媒体内容；其中，所述缓存进度为所述第二电子设备在所述第三时间已缓存的多媒体内容的进度。根据该可能的实现，控制指令中携带了真实的播放信息，确保多媒体内容跨设备切换播放的准确性。
在另一个可能的实现中，所述根据所述比较结果缓存或播放所述多媒体内容，包括：所述第二电子设备判断比较结果是否为下述结果中的一个或多个：所述第一地址和所述第二地址不同、所述第二播放进度小于所述预估播放进度和大于所述缓存进度；若是，则根据所述第二地址和所述第二播放进度缓存所述多媒体内容，若否，则根据所述第二播放进度和所述第二播放速度播放所述多媒体内容。
在另一个可能的实现中，所述第一电子设备包括NFC模块，所述第二电子设备上设置NFC标签，所述NFC标签上存储所述第二电子设备的标识信息；所述预设操作为所述第一电子设备通过NFC模块读取所述NFC标签上存储的所述第二电子设备的标识信息的读取操作；响应于预设操作所述第一电子设备与所述第二电子设备建立近距离无线通信连接，所述第二电子设备响应于预设操作至少根据所述第一地址缓存所述多媒体内容，包括：所述第一电子设备读取所述第二电子设备的标识信息，根据所述标识信息与所述第二电子设备建立所述近距离无线通信连接；所述第二电子设备检测到所述NFC标签被读取的操作，则根据所述第一地址缓存所述多媒体内容。
在一个示例中，所述标识信息至少包括：所述第二电子设备的MAC地址、所述第二电子设备的IP地址、所述第二电子设备的ID中的一种或多种。
在另一个可能的实现中，所述第一电子设备广播发送第一同步信息，包括：所述第一电子设备以第一预设发送周期广播发送数据包，若所述第一地址和/或所述多媒体内容播放参数发生变化，则所述第一电子设备在第一预设时间内以第二预设发送周期广播发送数据包，其中，所述第二预设发送周期小于所述第一预设发送周期，所述数据包内携带所述第一同步信息，所述多媒体内容播放参数至少包括播放速度。
在另一个可能的实现中，所述数据包中还携带有所述满足要求的电子设备的ID的哈 希值，所述哈希值用于接收到所述数据包的电子设备判断是否解析所述数据包。
在另一个可能的实现中，所述第一电子设备广播发送第一同步信息，之前还包括：所述第一电子设备开启近场发现功能，所述第二电子设备开启近场可被发现功能，所述第一电子设备发现潜在目标设备，其中所述潜在目标设备为：与所述第一电子设备已绑定或同账号的电子设备和/或在第二预设时间之前与所述第一电子设备建立所述近距离无线通信连接的电子设备和/或具有预设配置文件的电子设备。
在另一个可能的实现中，所述第一电子设备开启近场发现功能，包括：所述第一电子设备判断在第三预设时间内是否与其他电子设备建立所述近距离无线通信连接，若是则开启所述近场发现功能。
在另一个可能的实现中，所述近距离无线通信连接为BLE连接；所述第一电子设备响应于预设操作与所述第二电子设备建立近距离无线通信连接，包括：所述第一电子设备和第二电子设备分别采用第一预设的BLE连接参数和第二预设的BLE连接参数建立BLE连接；其中，所述第一预设的BLE连接参数至少包括预设的BLE扫描周期、预设的连接扫描占空比参数中的一种或多种，第二预设的BLE连接参数包括预设的BLE广播发送周期。
第二方面，本申请提供了一种通信方法，所述通信方法用于第一电子设备，所述方法包括：所述第一电子设备播放多媒体内容；所述第一电子设备广播发送第一同步信息，以使第二电子设备接收到所述第一同步信息；其中，所述第一同步信息至少包括第一地址，所述第一地址为所述多媒体内容的获取地址；所述第一电子设备响应于预设操作与所述第二电子设备建立近距离无线通信连接；所述预设操作用于触发所述第一电子设备与所述第二电子设备建立所述近距离无线通信连接，和触发所述第二电子设备至少根据所述第一地址缓存所述多媒体内容；所述第一电子设备通过所述近距离无线通信连接向所述第二电子设备发送控制指令，其中，所述控制指令用于控制所述第二电子设备播放所述多媒体内容。
在一个可能的实现中，所述第一同步信息还包括所述多媒体内容的第一播放进度和第一播放速度；所述第一播放进度、所述第一播放速度用于与第一时间和第二时间确定预估播放进度，所述预估播放进度用于所述第二电子设备根据所述预估播放进度和所述第一地址缓存所述多媒体内容；其中，所述第一时间为所述第二电子设备接收到所述第一同步信息的时间，所述第二时间为所述第二电子设备检测到所述预设操作发生的时间。
在另一个可能的实现中，所述预估播放进度还基于修正时间确定；所述预估播放进度基于所述第一播放进度与播放修正进度的和确定，其中，所述播放修正进度基于所述第一播放速度与时间差值的乘积确定，所述时间差值基于修正第二时间和所述第一时间的差确定，所述修正第二时间基于所述第二时间和修正时间的和确定，所述修正时间基于所述近距离无线通信连接完成建立所需的时间，和/或数据统计分析确定。
在另一个可能的实现中，所述控制指令还携带第二同步信息，所述第二同步信息包括第二地址、第二播放进度、第二播放速度，所述第二地址、第二播放进度、第二播放速度分别为在第三时间所述第一电子设备播放的多媒体内容的获取地址、播放进度和播放速度，所述第三时间为所述近距离无线通信连接完成建立的时间；所述第二同步信息用于所述第二电子设备比较所述第二地址、第二播放速度、第二播放进度和所述第一地址、第一播放速度、预估播放与缓存进度得出比较结果，根据所述比较结果缓存或播放所述多媒体内容；其中，所述缓存进度为所述第二电子设备在所述第三时间已缓存的多媒体内容的进度。
在另一个可能的实现中，所述根据所述比较结果缓存或播放所述多媒体内容，包括：所述第二电子设备判断比较结果是否为下述结果中的一个或多个：所述第一地址和所述第二地址不同、所述第二播放进度小于所述预估播放进度或所述第二播放进度大于所述缓存进度；若是，则根据所述第二地址和所述第二播放进度缓存所述多媒体内容，若否，则根据所述第二播放进度和所述第二播放速度播放所述多媒体内容。
在另一个可能的实现中，所述第一电子设备包括NFC模块，所述第二电子设备上设置NFC标签，所述NFC标签上存储所述第二电子设备的标识信息；所述第一电子设备响应于预设操作与所述第二电子设备建立近距离无线通信连接，包括：所述预设操作为所述第一电子设备通过NFC模块读取所述NFC标签上存储的所述第二电子设备的标识信息的读取操作；所述第一电子设备读取所述第二电子设备的标识信息，根据所述标识信息与所述第二电子设备建立所述近距离无线通信连接。
在另一个可能的实现中，所述标识信息至少包括：所述第二电子设备的MAC地址、所述第二电子设备的IP地址、所述第二电子设备的ID中的一种或多种。
在另一个可能的实现中，所述第一电子设备广播发送第一同步信息，包括：所述第一电子设备以第一预设发送周期广播发送数据包，若所述第一地址和/或所述多媒体内容播放参数发生变化，则所述第一电子设备在第一预设时间内以第二预设发送周期广播发送数据包，其中，所述第二预设发送周期小于所述第一预设发送周期，所述数据包内携带所述第一同步信息，所述多媒体内容播放参数至少包括播放速度。
在另一个可能的实现中，所述数据包中还携带有所述满足要求的电子设备的ID的哈希值，所述哈希值用于接收到所述数据包的电子设备判断是否解析所述数据包。
在另一个可能的实现中，所述第一电子设备广播发送第一同步信息，之前还包括：所述第一电子设备开启近场发现功能，所述第一电子设备发现潜在目标设备，其中所述潜在目标设备为：与所述第一电子设备已绑定或同账号的电子设备和/或在第二预设时间之前与所述第一电子设备建立所述近距离无线通信连接的电子设备和/或具有预设配置文件的电子设备。
在另一个可能的实现中，所述第一电子设备开启近场发现功能，包括：所述第一电子设备判断在第三预设时间内是否与其他电子设备建立所述近距离无线通信连接，若是则开启所述近场发现功能。
在另一个可能的实现中，所述近距离无线通信连接为BLE连接；所述第一电子设备响应于预设操作与所述第二电子设备建立近距离无线通信连接，包括：所述第一电子设备采用预设的BLE连接参数与所述第二电子设备建立BLE连接；其中，所述预设的BLE连接参数至少包括预设的BLE扫描周期、预设的连接扫描占空比参数中的一种或多种。
第三方面，本申请提供了一种通信方法，所述通信方法用于第一电子设备，所述方法包括：所述第二电子设备接收第一同步信息，所述第一同步信息为第一设备广播发送，所述第一同步信息至少包括第一地址，所述第一地址为多媒体内容的获取地址；所述多媒体内容为所述第一电子设备播放的内容；所述第二电子设备响应于预设操作至少根据所述第一地址缓存所述多媒体内容；所述预设操作用于触发所述第一电子设备与所述第二电子设备建立所述近距离无线通信连接，和触发所述第二电子设备至少根据所述第一地址缓存所述多媒体内容；所述第二电子设备根据控制指令播放所述多媒体内容，所述控制指令为所 述第一电子设备通过所述近距离无线通信连接向所述第二电子设备发送。
在一个可能的实现中，所述第一同步信息还包括所述多媒体内容的第一播放进度和第一播放速度；所述第一播放进度、所述第一播放速度用于与第一时间和第二时间确定预估播放进度，所述第二电子设备根据所述预估播放进度和所述第一地址缓存所述多媒体内容；其中，所述第一时间为所述第二电子设备接收到所述第一同步信息的时间，所述第二时间为所述第二电子设备检测到所述预设操作发生的时间。
在另一个可能的实现中，所述预估播放进度还基于修正时间确定；所述预估播放进度基于所述第一播放进度与播放修正进度的和确定，其中，所述播放修正进度基于所述第一播放速度与时间差值的乘积确定，所述时间差值基于修正第二时间和所述第一时间的差确定，所述修正第二时间基于所述第二时间和修正时间的和确定，所述修正时间基于所述近距离无线通信连接完成建立所需的时间，和/或数据统计分析确定。
在另一个可能的实现中，所述控制指令还携带第二同步信息，所述第二同步信息包括第二地址、第二播放进度、第二播放速度，所述第二地址、第二播放进度、第二播放速度分别为在第三时间所述第一电子设备播放的多媒体内容的获取地址、播放进度和播放速度，所述第三时间为所述近距离无线通信连接完成建立的时间；所述第二电子设备比较所述第二地址、第二播放速度、第二播放进度和所述第一地址、第一播放速度、预估播放与缓存进度得出比较结果，根据所述比较结果缓存或播放所述多媒体内容；其中，所述缓存进度为所述第二电子设备在所述第三时间已缓存的多媒体内容的进度。
在另一个可能的实现中，所述根据所述比较结果缓存或播放所述多媒体内容，包括：所述第二电子设备判断比较结果是否为下述结果中的一个或多个：所述第一地址和所述第二地址不同、所述第二播放进度小于所述预估播放进度或所述第二播放进度大于所述缓存进度；若是，则根据所述第二地址和所述第二播放进度缓存所述多媒体内容，若否，则根据所述第二播放进度和所述第二播放速度播放所述多媒体内容。
在另一个可能的实现中，所述第一电子设备包括NFC模块，所述第二电子设备上设置NFC标签，所述NFC标签上存储所述第二电子设备的标识信息；所述第二电子设备响应于预设操作至少根据所述第一地址缓存所述多媒体内容，包括：所述预设操作为所述第一电子设备通过NFC模块读取所述NFC标签上存储的所述第二电子设备的标识信息的读取操作；所述第二电子设备检测到所述NFC标签被读取的操作，则根据所述第一地址缓存所述多媒体内容。
在另一个可能的实现中，所述标识信息至少包括：所述第二电子设备的MAC地址、所述第二电子设备的IP地址、所述第二电子设备的ID中的一种或多种。
在另一个可能的实现中，所述近距离无线通信连接为BLE连接；
所述第一电子设备响应于预设操作与所述第二电子设备建立近距离无线通信连接，包括：
所述第二电子设备分别采用预设的BLE连接参数建立BLE连接；其中，预设的BLE连接参数包括预设的BLE广播发送周期。
第四方面，本申请提供了一种电子设备，包括存储器和处理器，所述存储器中存储有可执行代码，所述处理器执行所述可执行代码，实现本申请第二方面或第三方面提供的方法。
第五方面，本申请提供了一种计算机可读存储介质，其上存储有计算机程序，当所述计算机程序在计算机中执行时，令计算机执行本申请第二方面或第三方面提供的方法。
第六方面，本申请提供了一种计算机程序或计算机程序产品，所述计算机程序或计算机程序产品包括指令，当所述指令被执行时，实现本申请第二方面或第三方面提供的方法。
附图说明
图1为本申请实施例提供的一种通信系统的架构示意图；
图2为本申请实施例提供的一种应用场景示意图；
图3为本申请实施例提供的在图2所示场景下的通信方法的流程图；
图4为本申请实施例提供的实际播放进度未落入已缓存的多媒体内容段落内的示意图；
图5为本申请实施例提供的一种电子设备的示意性框图；
图6为本申请实施例提供的一种电子设备的示意性框图。
具体实施方式
下面通过附图和实施例，对本申请的技术方案做进一步的详细描述。
本申请实施例提供一种通信方法，可应用于图1所示的通信系统100中。如图1所示，该通信系统100中包括N个电子设备，例如电子设备1、电子设备2〃〃〃电子设备N，N为大于1的正整数，N个电子设备之间通过通信网络通信连接。
示例性的，上述通信网络可以是有线通信网络，也可以是无线通信网络，可以是局域网(local area networks，LAN)，也可以是广域网(wide area networks，WAN)，例如互联网。上述通信网络可使用任何已知的网络通信协议来实现，上述通信协议可以是各种有线或无线通信协议，例如以太网、通用串行总线(universal serial bus，USB)、火线(Firewire)、全球移动通讯系统(global system for mobile communications，GSM)、通用分组无线服务(general packet radio service，GPRS)、码分多址接入(code division multiple access，CDMA)、宽带码分多址(wideband code division multiple access，WCDMA),时分码分多址(time-division code division multiple access，TD-SCDMA),长期演进(long term evolution，LTE)、蓝牙、无线保真(wireless fidelity，Wi-Fi)、近场通信(near field communication，NFC)、基于互联网协议的语音通话(voice over Internet protocol，VoIP)、支持网络切片架构的通信协议、5G通信协议或任何其他合适的通信协议。
电子设备1与电子设备2通信连接，电子设备1可将其播放的多媒体内容切换到电子设备2上进行播放，电子设备1向电子设备2发送控制指令以控制多媒体内容的播放。
电子设备1与电子设备2建立通信连接的方式可以为近距离通信连接，当电子设备1与获取电子设备2的标识信息，则电子设备1与电子设备2建立通信连接，电子设备2将其正在播放或将要播放的多媒体内容到电子设备2上进行播放，实现媒体数据的“一碰切换播放设备”的跨设备播放。
可以理解的是，电子设备1和电子设备2都具有近距离通信功能，例如近场通信(near field communication，NFC)、蓝牙、紫蜂(ZigBee)、无线保真(wireless fidelity，Wi-Fi)、超宽带(UWB)或者红外数据协会(IrDA)网络等近距离通信功能。电子设备1 可以为智能手机、平板电脑、个人数字助理(Personal Digital Assistant，PDA)、可穿戴电子设备等电子设备；电子设备2可以为智能音箱、智能电视、笔记本电脑、车载播放设备等具有播放功能的设备。多媒体内容可以包括文本内容、图片内容、视频内容、音频内容等。
下面以电子设备1为智能手机，电子设备2为智能音箱，媒体数据为音频数据为例介绍本申请实施例提供的媒体数据的跨设备播放方法。
图2为本申请实施例提供的一种应用场景示意图。执行主体包括智能手机31和智能音箱32，该智能手机31和智能音箱均具有NFC和蓝牙连接功能。当智能手机31播放歌曲“歌曲1”时，智能手机31通过NFC读取智能音箱32的标识信息(例如MAC地址信息)，智能手机31根据该标识信息与智能音箱32建立蓝牙连接，将其播放的歌曲“歌曲1”切换到智能音箱32上进行播放，实现“一碰传音”的功能。
图3为本申请实施例提供的在图2所示场景下的通信方法的流程图。如图3所示，该方法包括步骤S301、智能音箱开启近场设备可被发现功能，例如，蓝牙连接功能打开，并且开启设备可被发现选项，此步骤可以为用户手动开启或者智能音箱上电即自动开启实现。
可选的还包括，步骤S302、智能手机检测是否满足“特定条件1”，如果满足则开启近场设备发现功能。
上述提到的“特定条件1”可以为，智能手机当前有多媒体内容在播放和设备本地有“一碰传音”的配置文件或记录和近期(例如10天内)使用过“一碰传音”功能。如果智能手机满足“特定条件1”则开启近场设备发现功能，例如开启蓝牙连接功能扫描发现附近可被连接的设备。实现无需用户动手操作即可自动开启近场设备发现功能，降低用户操作频率，提高了用户使用体验。
当然，步骤S302也可以替换为智能手机根据用户指令打开近场设备发现功能。例如，用户手动操作打开智能手机的近场设备发现功能，用户根据自己需求选择是否开启智能手机的近场设备发现功能，避免智能手机不必要的时候开启近场设备发现功能，降低智能手机的能耗。
步骤S303、智能手机发现近场设备，且该近场设备同时满足“特定条件2”，则执行步骤S303a。
智能手机发现近场设备的含义为：智能手机扫描发现附近可被蓝牙连接的设备，即在蓝牙智能手机的蓝牙有效连接范围内搜索发现可连接到的电子设备。同时为了节约智能手机能耗，智能手机中设定“特定条件2”，只有当特定条件2被满足时，才执行广播发送第一同步信息。该“特定条件”可以为智能手机发现的近场设备中存在潜在目标设备和/或智能手机与潜在目标设备近期(例如10天内)使用过“一碰传音”功能，其中，潜在目标设备为具有NFC和蓝牙功能的智能音箱且已与智能手机绑定的智能音箱，或者为具有NFC和蓝牙功能的智能音箱且与智能手机同一账号(例如同一华为账号)的智能音箱。避免用户没有使用“一碰传音”的意愿，智能手机仍然执行向智能音箱侧发送媒体数据同步信息，增加了智能手机能耗。
可以理解的是，潜在目标设备的含义为：可以实现与智能手机通信连接实现“一碰传音”功能的智能音箱，但是还未被确定为目标设备的智能音箱。
步骤S303a、智能手机广播发送多媒体内容同步信息。具体的，该多媒体内容同步信 息(即第一同步信息)至少包括：第一地址、第一播放速度、第一播放进度，第一地址、第一播放速度、第一播放进度分别为多媒体内容的获取地址(例如，多媒体内容数据的URI(Uniform Resource Identifier，统一资源标识符)或者多媒体内容数据的URL(Uniform Resource Locator，统一资源定位器))、多媒体内容的播放进度(例如多媒体内容播放的时间戳)、多媒体内容的播放速度(例如媒体内容播放帧率)。
示例性的，智能手机广播发送包括上述多媒体内容同步信息的广播数据包，广播的周期以预设的第一阈值的广播周期发送广播数据包，例如，第一阈值可以为1024ms。当然智能手机广播发送数据包的方式可以有多种，例如通过BLE广播发送数据包或者通过局域网的、广播发送数据包等，本申请不做限定。
在一些实施例中，广播数据包还包括潜在目标设备的ID的哈希值，限制只有潜在目标设备才可以处理解析广播数据包以得到多媒体内容同步信息，限制广播影响范围。
步骤S304、智能音箱根据接收到的第一同步信息，更新本地多媒体内容信息。
具体的，智能音箱接收广播数据包，解析该广播数据包获得多媒体内容同步信息，基于第一同步信息更新本地多媒体内容信息。智能音箱接收到广播数据包，验证广播数据包的哈希值与智能音箱的ID的哈希值是否相同，若是，则解析该广播数据包得到第一同步信息，并根据该第一同步信息更新本地保存的多媒体内容信息。
步骤S305、智能手机判断多媒体内容的获取地址和/或多媒体内容的播放速度否有更新，若是则在预设时间内以预设发送周期发送包含多媒体内容同步信息的广播数据包。
具体的，判断多媒体内容数据的URI(例如智能手机切换歌曲)和/或多媒体内容的播放速度(例如智能手机暂停/快进/快退播放歌曲)是否有变化，若是在预设时间内以预设发送周期发送包含多媒体内容同步信息的广播数据包，例如，智能手机在20秒内以预设发送周期发送包含多媒体内容同步信息的广播数据包，可以理解的是，这里的预设发送周期为64ms，这里的预设发送周期小于智能手机原来的广播发送周期，例如原来的广播发送周期为128ms。
步骤S306、智能手机获取智能音箱的标识信息，智能手机与智能音箱建立蓝牙连接，同时并行执行智能音箱根据第一同步信息开始缓存该多媒体内容。
可以理解的，智能音箱设置NFC标签(也可称为NFC贴片)，NFC标签内至少存储有智能音箱的标识信息，该标识信息可以为智能音箱的MAC(media access control，媒体访问控制)地址或者设备名称或者IP地址等可以唯一标识智能音箱的信息。将智能音箱设置NFC标签位置定义为NFC感应区域。
参见图2，当用户想要将智能手机上的正在播放的歌曲切换到智能音箱上播放时，可通过将智能手机靠近/触碰智能音箱的NFC感应区域。当智能手机与NFC标签之间的距离足够近时(例如10cm)，智能手机通过发射近场信号从NFC标签中读取智能音箱的标识信息，例如智能音箱的MAC地址。
也就是说，智能手机通过读取智能音箱的MAC地址，可确定本次的目标设备为智能音箱，那么智能手机根据智能音箱的标识信息和智能音箱建立蓝牙连接，将智能手机上正在播放的歌曲投射到智能音箱上进行播放。
容易理解的是，智能手机靠近/碰触智能音箱之前，智能手机已开启NFC功能，例如可以用户手动开启也可以设置为播放歌曲即自动开启NFC功能。
智能音箱检测到NFC标签被读取，即开始根据第一同步信息缓存媒体数据，实现蓝牙连接和数据传输的并行执行，相较于现有的媒体数据的跨设备播放方法为先进行蓝牙连接和再进行媒体数据的传输串行方案，大大降低了媒体数据跨设备播放的延迟，实现了媒体数据在智能手机和智能音箱上的无缝切换，提升用户使用体验。
具体的，步骤S306包括S306.a、智能手机开启蓝牙连接扫描，请求与智能音箱蓝牙连接。S306.b、智能音箱并行执行开启蓝牙连接扫描和根据第一同步信息中的多媒体内容数据的URI建立与存储有该多媒体内容数据的服务器建立连接，然后根据多媒体内容的播放进度和多媒体内容的播放速度得到智能手机和智能音箱建立蓝牙连接并将多媒体内容切换到蓝牙音箱上播放时的预估播放进度，然后智能音箱从预估播放进度节点开始缓存媒体数据。
预估播放进度可通过如下公式得到：P estimate＝P last+S*(T current-T last update-T delta fix)，其中P estimate表示预估播放进度，P last表示智能音箱检测到NFC标签被读取时，最后一次接收到的第一同步信息中的多媒体内容的播放进度(即第一时间接收到的第一同步信息中的第一播放进度)，S表示多媒体内容的播放速度，T current表示智能音箱检测到NFC标签被读取时的智能音箱上的时间(即第二时间)，T last update表示智能音箱检测到NFC标签被读取时，最后一次接收到第一同步信息的智能音箱上的时间(即第一时间)，T delta fix表示时间差修正值，该修正值可以根据智能手机和智能音箱建立蓝牙连接所需时间得到，例如统计得到智能手机和智能音箱建立蓝牙连接所需最小时间为400ms则修正值T delta fix为-400ms。或者该修正值为经过大量数据统计分析得到。
在另一个示例中，上述公式中的，T current可以替换为表示智能手机读取智能音箱标识信息时的智能手机上的时间，T last update可以替换为表示智能手机读取智能音箱标识信息时，最后一次发送多媒体内容同步信息的智能手机上的时间。
在另一个示例中，智能音箱在实际缓存多媒体内容时，可在预估播放进度的基础上提前预设播放进度再进行缓存，例如，预设播放进度为1s，预估播放进度为25s，则智能音箱从24s开始缓存多媒体内容，使用户感知到的多媒体内容播放更加连贯，增加用户的使用体验。
当然为了增加蓝牙连接速度，智能音箱设置优化的蓝牙连接参数，例如增加蓝牙连接扫描频率，使智能手机和智能音箱更快的建立蓝牙连接。
进一步的，当智能手机获取智能音箱的标识信息，智能手机设置优化的蓝牙连接参数，例如增加连接扫描频率和/或增大连接扫描占空比参数等，以进一步加快智能手机和智能音箱的蓝牙连接速度。
可以理解的是，“智能手机通过NFC读取蓝牙音箱的标识信息”只是智能手机和智能音箱建立蓝牙连接的一种触发方式，也可以采用其他触发方式，例如，智能手机检测到与智能音箱建立蓝牙连接的按键被触发或者检测到与智能音箱建立蓝牙连接的语音命令等。
步骤S307、智能手机通过蓝牙向智能音箱发送控制指令以控制智能音箱播放媒体数据。
在一些实施例中，步骤S307还包括步骤S307.a、智能手机停止播放多媒体内容。即智能手机在与智能音箱完成蓝牙连接则停止播放多媒体内容，将多媒体内容切换到智能音箱上进行播放。
步骤S308、智能音箱根据预估播放进度开始播放多媒体内容，并根据接收到的智能手 机发送的控制指令播放多媒体内容。
在一些实施例中，步骤S307还包括智能手机向智能音箱发送多媒体内容的实际播放进度，该实际播放进度即为智能手机停止播放多媒体内容时的播放进度。在一个示例中，智能手机完成与智能音箱的蓝牙连接则停止播放多媒体内容，定义智能手机完成与智能音箱的蓝牙连接时智能音箱上的时间为第三时间，则实际播放进度即为在第三时间多媒体内容的播放进度，实际播放进度即为第二播放进度。
具体包括步骤S307.1智能音箱比较实际播放进度、预估播放进度和缓存进度(缓存进度为在第三时间智能音箱已缓存的多媒体内容的进度)得出比较结果，判断比较结果是否为实际播放进度小于预估播放进度或实际播放进度大于缓存进度，若是则执行步骤S308.2，若否则执行步骤S308.1，S308.1、智能音箱根据实际播放进度重新缓存多媒体内容；S308.2、根据实际播放进度播放多媒体内容。如图4所示，即实际播放进度未落入已缓存的多媒体内容段落内。可以理解的是，进度可以用时间戳表示，例如，一首歌播放至45秒，则播放进度可表示为45秒。缓存至50秒，则缓存进度可表示为50秒。实际播放进度未落入已缓存的多媒体内容段落内，则为实际播放进度小于预估播放进度或者为实际播放进度大于缓存进度。例如，预估播放进度为25秒，缓存进度为45秒，则已缓存的多媒体内容段落为35秒-55秒，若实际播放进度为小于35秒或大于55秒的，则需要智能音箱重新根据实际播放进度缓存多媒体内容。根据实际播放进度播放媒体数据含义为，从实际播放时间处开始播放媒体数据，例如，预估播放进度为43秒，智能音箱从43秒处缓存了歌曲，而时间播放进度为45秒，则智能音响从45秒处开始播放歌曲。
在另一些实施例中，步骤S307还包括智能手机向智能音箱发送实际多媒体内容的获取地址(例如，实际多媒体内容数据的URI,或实际多媒体内容数据的URL)。具体包括步骤S307.2、智能音箱比较接收到的实际多媒体内容数据获取地址判断和智能音箱检测到NFC标签被读取时，最后一次接收到的第一同步信息中的多媒体内容的获取地址是否一致，根据比较结果缓存/播放多媒体内容。具体的，实际多媒体内容的获取地址和智能音箱检测到NFC标签被读取时最后一次接收到的多媒体内容同步信息中的多媒体内容的获取地址一致，则根据实际播放进度播放多媒体内容；实际多媒体内容的获取地址和智能音箱检测到NFC标签被读取时，最后一次接收到的多媒体内容同步信息中的多媒体内容的获取地址不一致，则根据实际多媒体内容的获取地址和实际播放进度缓存多媒体内容。需要解释的是，实际多媒体内容的获取地址为智能手机和智能音箱建立蓝牙连接成功时的多媒体内容的获取地址。
在一些实施例中，步骤S307还包括智能手机向智能音箱发送实际多媒体内容的播放速度。具体包括步骤S307.3、智能音箱根据实际多媒体内容的播放速度播放媒体数据。可以理解的是，实际多媒体内容的播放速度为智能手机和智能音箱建立蓝牙连接成功时的多媒体内容的播放速度。
在一些实施例中，多媒体内容的实际播放进度、实际多媒体内容的获取地址和实际多媒体内容的播放速度(即第二同步信息包括的第二播放进度、第二地址和第二播放速度)的发送也可为携带在控制指令中发送给智能音箱。
在一些实施例中，还包括步骤S309、智能手机向智能音箱发送将要播放的多媒体内容信息。例如，播放列表、播放列表中的多媒体内容数据的URI、播放循环模式等信息，步 骤S310、智能音箱根据接收到的将要播放的多媒体内容信息边播放当前的多媒体内容和缓存将要播放的多媒体内容。例如，正在播放的歌曲为“歌曲1”，播放列表中的下一首歌曲为“歌曲2”，循环模式为列表循环，则判断下一首即将播放的歌曲为“歌曲2”，则智能音箱边播放“歌曲1”边缓存下一首播放的歌曲“歌曲2”。步骤S309在步骤S308或步骤S308.1之后执行。
在另一些实施例中，还包括步骤S311、智能手机根据播放列表和播放循环模式缓存多媒体内容。步骤S312、智能手机再次靠近/触碰智能音箱以读取智能音箱的标识信息，则断开与智能音箱的连接，智能手机获取断开连接时多媒体内容的播放进度，智能手机根据该多媒体内容的播放进度播放多媒体内容。步骤S313、智能音箱检测到智能手机再次靠近/触碰动作读取智能音箱的标识信息，则断开与智能手机的连接，停止播放多媒体内容，并停止缓存多媒体内容。步骤S311在步骤S308或步骤S308.1之后执行。
在另一些实施例中，还包括步骤S314、智能手机获取多媒体内容在智能音箱上的实时播放进度。步骤S315、智能手机再次靠近/触碰智能音箱以读取智能音箱的标识信息，则断开与智能音箱的连接，智能手机获取断开连接时的实时播放进度缓存多媒体内容，智能手机播放多媒体内容。步骤S316、智能音箱检测到智能手机再次靠近/触碰动作读取智能音箱的标识信息，则断开与智能手机的连接，停止播放多媒体内容，并停止缓存多媒体内容。步骤S314在步骤S308或步骤S308.1之后执行。
在另一些实施例中，还包括步骤S317、智能手机再次靠近/触碰智能音箱以读取智能音箱的标识信息，则断开与智能音箱的连接，智能手机获取断开连接时多媒体内容的播放进度，智能手机根据该多媒体内容的播放进度缓存多媒体内容，智能手机播放多媒体内容。步骤S318、智能音箱检测到智能手机再次靠近/触碰动作读取智能音箱的标识信息，则断开与智能音箱的连接，停止播放多媒体内容，并停止缓存多媒体内容。步骤S317在步骤S308或步骤S308.1之后执行。
在一些实施例中，步骤S306中的“同时并行执行智能音箱根据多媒体内容同步信息开始缓存多媒体内容”可在智能手机读取智能音箱的标识信息之前开始执行。即智能音箱在未检测到NFC标签被读取之前就开始执行根据多媒体内容同步信息开始缓存多媒体内容数据，当智能音箱检测到NFC标签被读取，只需执行智能手机和智能音箱的蓝牙连接过程即可，蓝牙连接完成后智能音箱获取多媒体内容的播放进度即可根据播放进度播放缓存完成的多媒体内容数据，进一步降低延迟。
在一些实施例中，步骤S305之后还包括步骤S305.1、智能手机和/智能音箱获取其所在通信网络的网络状态，根据其网络状态判断执行步骤S306.1或步骤S306.2。步骤S306.1为：智能手机获取智能音箱的标识信息，智能手机与智能音箱建立蓝牙连接，同时并行执行智能音箱根据多媒体内容同步信息开始缓存该多媒体内容。步骤S306.2为：执行根据媒体数据同步信息开始缓存多媒体内容，智能手机获取智能音箱的标识信息，智能手机与智能音箱建立蓝牙连接。步骤S306.1和步骤S306.2之后执行步骤S307至步骤S308,或步骤S307至步骤S308.1，或步骤S307至步骤S310,或步骤S307至步骤S313,或步骤S307至步骤S316，或步骤S307至步骤S318。
可以理解的，网络状态包括网速，根据网络状态判断执行步骤S306.1或步骤S306.2具体为：判断网速是否大于阈值(例如1M/s)，若是则执行步骤S306.1，若否则执行步骤 S306.2。即当网络状态较好时，将“智能音箱根据多媒体内容同步信息开始缓存多媒体内容的数据”可在智能手机获取智能音箱的标识信息之后进行，当网络状态较差时，将“智能音箱根据多媒体内容同步信息开始缓存多媒体内容的数据”在智能手机获取智能音箱的标识信息之前进行，保证智能音箱缓存多媒体内容的数据在智能音箱和智能手机蓝牙建立连接完成之前完成，降低媒体数据跨设备播放的延迟。
在另一些实施例中，为了进一步的降低媒体数据的跨设备播放的延迟，上述的蓝牙为BLE(Bluetooth Low Energy,低功耗蓝牙),即智能手机和智能音箱均支持BLE技术，BLE连接速率为300ms或更快，而传统的蓝牙连接速率为3s，采用BLE连接，实现更快的连接速度和更低的能耗。
本申请提供了一种计算机可读存储介质，其上存储有计算机程序，当所述计算机程序在计算机中执行时，令计算机执行上述提供的通信方法。
本申请提供了一种计算机程序或计算机程序产品，所述计算机程序或计算机程序产品包括指令，当所述指令被执行时，实现上述提供的通信方法。
图5为本申请实施例提供的一种电子设备的示意性框图。该电子设备500包括处理器501、存储器502、NFC模块503和BLE模块504。其中，所述存储器用于存储计算机执行指令；当所述电子设备500运行时，所述处理器501执行所述存储器502存储的所述计算机执行指令，以使所述电子设备500执行图3中智能手机侧的方法步骤。其中，NFC模块503，用于读取NFC标签以获取NFC标签上的内容(例如读取智能音箱上的NFC标签以获取智能音箱的标识信息)；BLE模块504，用于广播发送信息(例如广播发送多媒体内容同步信息)和与电子设备2(例如智能音箱)建立蓝牙连接；以通过蓝牙连接向电子设备2发送控制指令。
在一些实施例中，该电子设备500还包括通信总线505，其中，处理器501可通过通信总线505与存储器502、NFC模块503和BLE模块504连接，从而可实现根据存储器502存储的计算机执行指令，对FC模块503和BLE模块504进行相应控制。
本申请实施例的电子设备500各个部件/器件的具体实施方式，可参照上文如图3智能手机侧所示的各方法实施例实现，此处不再赘述。
图6为本申请实施例提供的一种电子设备的示意性框图。该电子设备600包括处理器601、存储器602、NFC标签603和BLE模块604。其中，所述存储器用于存储计算机执行指令；当所述电子设备600运行时，所述处理器601执行所述存储器602存储的所述计算机执行指令，以使所述电子设备600执行图3中智能音箱侧所示的方法步骤。其中，NFC标签603，用于存储电子设备的标识信息以及当被读取时可被电子设备600检测到；BLE模块604，用于与电子设备1建立BLE连接以接收电子设备发送的控制指令。
在一些实施例中，该电子设备600还包括通信总线605，其中，处理器601可通过通信总线605与存储器602、NFC标签603和BLE模块604连接，从而可实现根据存储器602存储的计算机执行指令，对NFC标签603和BLE模块604进行相应控制。
本申请实施例的电子设备600各个部件/器件的具体实施方式，可参照上文如图3智能音箱侧所示的各方法实施例实现，此处不再赘述。
可以理解的是，本申请的实施例中的处理器可以是中央处理单元(central  processing unit，CPU)，还可以是其他通用处理器、数字信号处理器(digital signal processor，DSP)、专用集成电路(application specific integrated circuit，ASIC)、现场可编程门阵列(field programmable gate array，FPGA)或者其他可编程逻辑器件、晶体管逻辑器件，硬件部件或者其任意组合。通用处理器可以是微处理器，也可以是任何常规的处理器。
本申请的实施例中的方法步骤可以通过硬件的方式来实现，也可以由处理器执行软件指令的方式来实现。软件指令可以由相应的软件模块组成，软件模块可以被存放于随机存取存储器(random access memory，RAM)、闪存、只读存储器(read-only memory，ROM)、可编程只读存储器(programmable rom，PROM)、可擦除可编程只读存储器(erasable PROM，EPROM)、电可擦除可编程只读存储器(electrically EPROM，EEPROM)、寄存器、硬盘、移动硬盘、CD-ROM或者本领域熟知的任何其它形式的存储介质中。一种示例性的存储介质耦合至处理器，从而使处理器能够从该存储介质读取信息，且可向该存储介质写入信息。当然，存储介质也可以是处理器的组成部分。处理器和存储介质可以位于ASIC中。
本领域普通技术人员应该还可以进一步意识到，结合本文中所公开的实施例描述的各示例的单元及算法步骤，能够以电子硬件、计算机软件或者二者的结合来实现，为了清楚地说明硬件和软件的可互换性，在上述说明中已经按照功能一般性地描述了各示例的组成及步骤。这些功能究竟以硬件还是软件方式来执轨道，取决于技术方案的特定应用和设计约束条件。本领域普通技术人员可以对每个特定的应用来使用不同方法来实现所描述的功能，但是这种实现不应认为超出本申请的范围。
结合本文中所公开的实施例描述的方法或算法的步骤可以用硬件、处理器执轨道的软件模块，或者二者的结合来实施。软件模块可以置于随机存储器(RAM)、内存、只读存储器(ROM)、电可编程ROM、电可擦除可编程ROM、寄存器、硬盘、可移动磁盘、CD-ROM、或技术领域内所公知的任意其它形式的存储介质中。
以上所述的具体实施方式，对本申请的目的、技术方案和有益效果进行了进一步详细说明，所应理解的是，以上所述仅为本申请的具体实施方式而已，并不用于限定本申请的保护范围，凡在本申请的精神和原则之内，所做的任何修改、等同替换、改进等，均应包含在本申请的保护范围之内。

Claims (27)

  1. 一种通信方法，其特征在于，所述通信方法应用于通信系统，所述通信系统至少包括第一电子设备和第二电子设备，所述方法包括：
    所述第一电子设备播放多媒体内容；
    所述第一电子设备广播发送第一同步信息，以使所述第二电子设备接收到所述第一同步信息；其中，所述第一同步信息至少包括第一地址，所述第一地址为所述多媒体内容的获取地址；
    响应于预设操作所述第一电子设备与所述第二电子设备建立近距离无线通信连接，所述第二电子设备响应于预设操作至少根据所述第一地址缓存所述多媒体内容；
    所述第一电子设备通过所述近距离无线通信连接向所述第二电子设备发送控制指令；
    所述第二电子设备根据所述控制指令播放所述多媒体内容。
  2. 根据权利要求1所述的方法，其特征在于，所述第一同步信息还包括所述多媒体内容的第一播放进度和第一播放速度；
    所述第二电子设备响应于预设操作至少根据所述第一地址缓存所述多媒体内容，包括：
    所述第二电子设备根据所述预估播放进度和所述第一地址缓存所述多媒体内容；其中，所述预估播放进度基于所述第一播放进度、所述第一播放速度、第一时间和第二时间确定；所述第一时间为所述第二电子设备接收到所述第一同步信息的时间，所述第二时间为所述第二电子设备检测到所述预设操作发生的时间。
  3. 根据权利要求2所述的方法，其特征在于，所述预估播放进度还基于修正时间确定；
    所述第二电子设备根据所述第一播放进度与播放修正进度的和确定所述预估播放进度，其中，所述播放修正进度基于所述第一播放速度与时间差值的乘积确定，所述时间差值基于修正第二时间和所述第一时间的差确定，所述修正第二时间基于所述第二时间和修正时间的和确定，所述修正时间基于所述近距离无线通信连接完成建立所需的时间，和/或数据统计分析确定。
  4. 根据权利要求2或3所述的方法，其特征在于，所述控制指令还携带第二同步信息，所述第二同步信息包括第二地址、第二播放进度、第二播放速度，所述第二地址、第二播放进度、第二播放速度分别为在第三时间所述第一电子设备播放的多媒体内容的获取地址、播放进度和播放速度，所述第三时间为所述近距离无线通信连接完成建立的时间；
    所述第二电子设备根据所述控制指令播放所述多媒体内容，包括：
    所述第二电子设备比较所述第二地址、第二播放速度、第二播放进度和所述第一地址、第一播放速度、预估播放进度与缓存进度得出比较结果，根据所述比较结果缓存或播放所述多媒体内容；其中，所述缓存进度为所述第二电子设备在所述第三时间已缓存的多媒体内容的进度。
  5. 根据权利要求4所述的方法，其特征在于，所述根据所述比较结果缓存或播放所述多媒体内容，包括：
    所述第二电子设备判断比较结果是否为下述结果中的一个或多个：
    所述第一地址和所述第二地址不同、所述第二播放进度小于所述预估播放进度或所述第二播放进度大于所述缓存进度；
    若是，则根据所述第二地址和所述第二播放进度缓存所述多媒体内容，若否，则根据所述第二播放进度和所述第二播放速度播放所述多媒体内容。
  6. 根据权利要求1-5任一项所述的方法，其特征在于，所述第一电子设备包括NFC模块，所述第二电子设备上设置NFC标签，所述NFC标签上存储所述第二电子设备的标识信息；
    所述预设操作为所述第一电子设备通过NFC模块读取所述NFC标签上存储的所述第二电子设备的标识信息的读取操作；
    响应于预设操作所述第一电子设备与所述第二电子设备建立近距离无线通信连接，所述第二电子设备响应于预设操作至少根据所述第一地址缓存所述多媒体内容，包括：
    所述第一电子设备读取所述第二电子设备的标识信息，根据所述标识信息与所述第二电子设备建立所述近距离无线通信连接；
    所述第二电子设备检测到所述NFC标签被读取的操作，则根据所述第一地址缓存所述多媒体内容。
  7. 根据权利要求6所述的方法，其特征在于，所述标识信息至少包括：所述第二电子设备的MAC地址、所述第二电子设备的IP地址、所述第二电子设备的ID中的一种或多种。
  8. 根据权利要求1-7任一项所述的方法，其特征在于，所述第一电子设备广播发送第一同步信息，包括：
    所述第一电子设备以第一预设发送周期广播发送数据包，若所述第一地址和/或所述多媒体内容播放参数发生变化，则所述第一电子设备在第一预设时间内以第二预设发送周期广播发送数据包，其中，所述第二预设发送周期小于所述第一预设发送周期，所述数据包内携带所述第一同步信息，所述多媒体内容播放参数至少包括播放速度。
  9. 根据权利要求8所述的方法，其特征在于，所述数据包中还携带有所述满足要求的电子设备的ID的哈希值，所述哈希值用于接收到所述数据包的电子设备判断是否解析所述数据包。
  10. 根据权利要求1-9任一项所述的方法，其特征在于，所述第一电子设备广播发送第一同步信息，之前还包括：
    所述第一电子设备开启近场发现功能，所述第二电子设备开启近场可被发现功能，所述第一电子设备发现潜在目标设备，其中所述潜在目标设备为：与所述第一电子设备已绑定或同账号的电子设备和/或在第二预设时间之前与所述第一电子设备建立所述近距离无线通信连接的电子设备和/或具有预设配置文件的电子设备。
  11. 根据权利要求11所述的方法，其特征在于，所述第一电子设备开启近场发现功能，包括：
    所述第一电子设备判断在第三预设时间内是否与其他电子设备建立所述近距离无线通信连接，若是则开启所述近场发现功能。
  12. 根据权利要求1-11任一项所述的方法，其特征在于，所述近距离无线通信连接为BLE连接；
    所述第一电子设备响应于预设操作与所述第二电子设备建立近距离无线通信连接，包括：
    所述第一电子设备和第二电子设备分别采用第一预设的BLE连接参数和第二预设的BLE连接参数建立BLE连接；其中，所述第一预设的BLE连接参数至少包括预设的BLE扫描周期、预设的连接扫描占空比参数中的一种或多种，第二预设的BLE连接参数包括预设的BLE广播发送周期。
  13. 一种通信方法，其特征在于，所述通信方法用于第一电子设备，所述方法包括：
    所述第一电子设备播放多媒体内容；
    所述第一电子设备广播发送第一同步信息，以使第二电子设备接收到所述第一同步信息；其中，所述第一同步信息至少包括第一地址，所述第一地址为所述多媒体内容的获取地址；
    所述第一电子设备响应于预设操作与所述第二电子设备建立近距离无线通信连接；所述预设操作用于触发所述第一电子设备与所述第二电子设备建立所述近距离无线通信连接，和触发所述第二电子设备至少根据所述第一地址缓存所述多媒体内容；
    所述第一电子设备通过所述近距离无线通信连接向所述第二电子设备发送控制指令，其中，所述控制指令用于控制所述第二电子设备播放所述多媒体内容。
  14. 根据权利要求13所述的方法，其特征在于，所述第一同步信息还包括所述多媒体内容的第一播放进度和第一播放速度；
    所述第一播放进度、所述第一播放速度用于与第一时间和第二时间确定预估播放进度，所述预估播放进度用于所述第二电子设备根据所述预估播放进度和所述第一地址缓存所述多媒体内容；
    其中，所述第一时间为所述第二电子设备接收到所述第一同步信息的时间，所述第二时间为所述第二电子设备检测到所述预设操作发生的时间。
  15. 根据权利要求14所述的方法，其特征在于，所述预估播放进度还基于修正时间确定；
    所述预估播放进度基于所述第一播放进度与播放修正进度的和确定，其中，所述播放修正进度基于所述第一播放速度与时间差值的乘积确定，所述时间差值基于修正第二时间和所述第一时间的差确定，所述修正第二时间基于所述第二时间和修正时间的和确定，所述修正时间基于所述近距离无线通信连接完成建立所需的时间，和/或数据统计分析确定。
  16. 根据权利要求14或15所述的方法，其特征在于，所述控制指令还携带第二同步信息，所述第二同步信息包括第二地址、第二播放进度、第二播放速度，所述第二地址、第二播放进度、第二播放速度分别为在第三时间所述第一电子设备播放的多媒体内容的获取地址、播放进度和播放速度，所述第三时间为所述近距离无线通信连接完成建立的时间；
    所述第二同步信息用于所述第二电子设备比较所述第二地址、第二播放速度、第二播放进度和所述第一地址、第一播放速度、预估播放与缓存进度得出比较结果，根据所述比较结果缓存或播放所述多媒体内容；其中，所述缓存进度为所述第二电子设备在所述第三时间已缓存的多媒体内容的进度。
  17. 根据权利要求16所述的方法，其特征在于，所述根据所述比较结果缓存或播放所述多媒体内容，包括：
    所述第二电子设备判断比较结果是否为下述结果中的一个或多个：
    所述第一地址和所述第二地址不同、所述第二播放进度小于所述预估播放进度或所述第二播放进度大于所述缓存进度；
    若是，则根据所述第二地址和所述第二播放进度缓存所述多媒体内容，若否，则根据所述第二播放进度和所述第二播放速度播放所述多媒体内容。
  18. 根据权利要求13-17任一项所述的方法，其特征在于，所述第一电子设备包括NFC模块，所述第二电子设备上设置NFC标签，所述NFC标签上存储所述第二电子设备的标识信息；
    所述第一电子设备响应于预设操作与所述第二电子设备建立近距离无线通信连接，包括：
    所述预设操作为所述第一电子设备通过NFC模块读取所述NFC标签上存储的所述第二电子设备的标识信息的读取操作；
    所述第一电子设备读取所述第二电子设备的标识信息，根据所述标识信息与所述第二电子设备建立所述近距离无线通信连接。
  19. 根据权利要求18所述的方法，其特征在于，所述标识信息至少包括：所述第二电子设备的MAC地址、所述第二电子设备的IP地址、所述第二电子设备的ID中的一种或多种。
  20. 根据权利要求13-19任一项所述的方法，其特征在于，所述第一电子设备广播发送第一同步信息，包括：
    所述第一电子设备以第一预设发送周期广播发送数据包，若所述第一地址和/或所述多媒体内容播放参数发生变化，则所述第一电子设备在第一预设时间内以第二预设发送周期广播发送数据包，其中，所述第二预设发送周期小于所述第一预设发送周期，所述数据包内携带所述第一同步信息，所述多媒体内容播放参数至少包括播放速度。
  21. 根据权利要求19所述的方法，其特征在于，所述数据包中还携带有所述满足要求的电子设备的ID的哈希值，所述哈希值用于接收到所述数据包的电子设备判断是否解析所述数据包。
  22. 根据权利要求13-21任一项所述的方法，其特征在于，所述第一电子设备广播发送第一同步信息，之前还包括：
    所述第一电子设备开启近场发现功能，所述第一电子设备发现潜在目标设备，其中所述潜在目标设备为：与所述第一电子设备已绑定或同账号的电子设备和/或在第二预设时间之前与所述第一电子设备建立所述近距离无线通信连接的电子设备和/或具有预设配置文件的电子设备。
  23. 根据权利要求22所述的方法，其特征在于，所述第一电子设备开启近场发现功能，包括：
    所述第一电子设备判断在第三预设时间内是否与其他电子设备建立所述近距离无线通信连接，若是则开启所述近场发现功能。
  24. 根据权利要求13-23任一项所述的方法，其特征在于，所述近距离无线通信连接为BLE连接；
    所述第一电子设备响应于预设操作与所述第二电子设备建立近距离无线通信连接，包括：
    所述第一电子设备采用预设的BLE连接参数与所述第二电子设备建立BLE连接；其中，所述预设的BLE连接参数至少包括预设的BLE扫描周期、预设的连接扫描占空比参数中的一种或多种。
  25. 一种电子设备，包括存储器和处理器，其特征在于，所述存储器中存储有可执行代码，所述处理器执行所述可执行代码，实现权利要求13-24任一项所述的方法。
  26. 一种计算机可读存储介质，其上存储有计算机程序，其特征在于，当所述计算机程序在计算机中执行时，令计算机执行权利要求13-24任一项所述的方法。
  27. 一种计算机程序或计算机程序产品，其特征在于，所述计算机程序或计算机程序产品包括指令，当所述指令被执行时，实现权利要求13-24任一项所述的方法。
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