CN106792441B - Bluetooth switching method, device and storage medium - Google Patents
Bluetooth switching method, device and storage medium Download PDFInfo
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- CN106792441B CN106792441B CN201611078798.7A CN201611078798A CN106792441B CN 106792441 B CN106792441 B CN 106792441B CN 201611078798 A CN201611078798 A CN 201611078798A CN 106792441 B CN106792441 B CN 106792441B
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- 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
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W76/00—Connection management
- H04W76/10—Connection setup
- H04W76/11—Allocation or use of connection identifiers
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Abstract
The embodiment of the invention discloses a Bluetooth switching method and device, which are applied to the technical field of communication. In the method of this embodiment, when the first bluetooth device determines to switch from presenting the sound information of the first application to presenting the sound information of the second application, if the identification information of the second bluetooth device does not match the preset bluetooth device information, the status information of stopping presenting the sound information of the first application is transmitted to the second bluetooth device, and the status information is not transmitted when there is a match. Therefore, the Bluetooth device information of all audio data streams which stop being communicated with the first Bluetooth device when the state information of the sound information of a certain application program is stopped being displayed can be stored in the first Bluetooth device, and the second Bluetooth device can be guaranteed to receive the sound information of any application program of the first Bluetooth device to be displayed.
Description
Technical Field
The present invention relates to the field of communications technologies, and in particular, to a bluetooth switching method and apparatus.
Background
Currently, most mobile terminal platforms, such as International Organization for Standardization (ISO) platforms or android platforms, can support various application programs such as music playing and map navigation (e.g., a gold map and a Baidu map), so that the mobile terminal platforms correspondingly play music or navigation prompt tones and the like.
Generally, the mobile terminal platform has a bluetooth module, and can be connected to other bluetooth devices (such as a vehicle central control device or a bluetooth headset) having the bluetooth module. After the mobile terminal platform is connected with other Bluetooth equipment by using a Bluetooth technology, if a music player is started on the mobile terminal platform to play music, music data can be transmitted to other Bluetooth equipment through a Bluetooth channel and broadcasted by other Bluetooth equipment. If the map navigation application program is started for route navigation while music is played on the mobile terminal platform, the navigation prompting voice data can be transmitted to other Bluetooth equipment through the Bluetooth channel and then broadcasted by other Bluetooth equipment. Therefore, in the process that other Bluetooth devices switch from broadcasting music data of the mobile terminal platform to broadcasting navigation prompt tones, the transmission of audio data streams between other Bluetooth devices and the mobile terminal platform is ensured.
Disclosure of Invention
The embodiment of the invention provides a Bluetooth switching method and a Bluetooth switching device, which are used for determining whether to send state information of sound information of a first application program to a second Bluetooth device according to identification information of the second Bluetooth device.
The embodiment of the invention provides a Bluetooth switching method, which comprises the following steps:
the first Bluetooth device sends the sound information of the first application program to the second Bluetooth device for playing through Bluetooth communication connection with the second Bluetooth device;
when the first Bluetooth device determines to switch from showing the sound information of the first application program to showing the sound information of the second application program, acquiring the identification information of the second Bluetooth device;
the first Bluetooth device matches the identification information with preset Bluetooth device information, and if the identification information is not matched with the preset Bluetooth device information, the state information of stopping displaying the sound information of the first application program is sent to a second Bluetooth device, so that the second Bluetooth device can display the sound information of the second application program according to the state information; and if the state information is matched, not sending the state information.
An embodiment of the present invention provides a bluetooth switching apparatus, including:
the sound sending unit is used for sending the sound information of the first application program to the second Bluetooth equipment for playing through Bluetooth communication connection between the sound sending unit and the second Bluetooth equipment;
the identification acquisition unit is used for acquiring the identification information of the second Bluetooth device when the switching from the sound information for displaying the first application program to the sound information for displaying the second application program is determined;
the matching unit is used for matching the identification information with preset Bluetooth equipment information;
a status sending unit, configured to send status information indicating that the presentation of the sound information of the first application program is stopped to a second bluetooth device if the identification information is not matched with preset bluetooth device information, so that the second bluetooth device presents the sound information of the second application program according to the status information; and if the state information is matched, not sending the state information.
As can be seen, in the method of this embodiment, when the first bluetooth device determines to switch from presenting the sound information of the first application program to presenting the sound information of the second application program, if the identification information of the second bluetooth device does not match the preset bluetooth device information, the status information that the presentation of the sound information of the first application program is stopped will be sent to the second bluetooth device, and the status information will not be sent when there is a match. Therefore, a user can set the Bluetooth device information in the first Bluetooth device in advance, and the Bluetooth devices can stop all audio data streams with the first Bluetooth device when receiving the state information of stopping displaying the sound information of a certain application program, so that the influence of the transmission of the state information on the audio data stream transmission in the switching process of displaying the sound information by the Bluetooth devices is eliminated, and the second Bluetooth device can be ensured to receive the sound information of any application program of the first Bluetooth device for displaying.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a flowchart of a bluetooth handover method according to an embodiment of the present invention;
fig. 2 is a flowchart of another bluetooth handover method according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a bluetooth switching apparatus according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of another bluetooth switching apparatus according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of a terminal device platform according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The terms "first," "second," "third," "fourth," and the like in the description and in the claims, as well as in the drawings, if any, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the invention described herein are, for example, capable of operation in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
An embodiment of the present invention provides a bluetooth switching method, which is mainly applicable to some devices (hereinafter referred to as first bluetooth devices) supporting a bluetooth function, for example, devices with a strong function such as a terminal device platform, and a flowchart of the method is shown in fig. 1, and includes:
step 101, the first bluetooth device sends the sound information of the first application program to the second bluetooth device for playing through bluetooth communication connection with the second bluetooth device. The second bluetooth device may be an in-vehicle central control device or a bluetooth headset.
It can be understood that after the first bluetooth device is in bluetooth communication connection with the second bluetooth device, the sound information of the plurality of applications started by the first bluetooth device can be respectively sent to the second bluetooth device for playing. And the first bluetooth device may determine which application sound information is preferentially displayed, for example, for two applications of playing music and map navigation, if a navigation prompt tone is generated during the playing of music data, the first bluetooth device determines to pause the playing of music data and play the generated navigation prompt tone.
Step 102, when the first bluetooth device determines to switch from showing the sound information of the first application program to showing the sound information of the second application program, acquiring the identification information of the second bluetooth device. Specifically, the address information of the second bluetooth device may be the address information of the second bluetooth device, or the higher 3-bit address information in the address of the second bluetooth device.
Generally, the Address of the bluetooth device includes three parts, namely a Lower Address Part (LAP) (Lower Part of 24-bit Address), an Upper Address Part (UAP) (Upper Part of 8-bit Address), and a meaningless Address Part (Non-significant Address Part, NAP) (16-bit meaningless Address Part), where the NAP and the UAP are unique identification codes of manufacturers of bluetooth devices, and must be assigned to different manufacturers by bluetooth authorities, and the LAP is freely assigned by manufacturers of bluetooth devices. The high 3-bit address information in this embodiment refers to the UAP of the second bluetooth device.
And 103, the first Bluetooth device matches the identification information of the second Bluetooth device with preset Bluetooth device information, and if the identification information of the second Bluetooth device is not matched with the preset Bluetooth device information, the step 104 is executed. Here, the preset bluetooth device information may include identification information of a plurality of bluetooth devices.
If the identification information of the second bluetooth device matches the preset bluetooth device information, step 104 will not be performed, in which case, since the first bluetooth device will temporarily stop sending the sound information of the first application program to the second bluetooth device, but send the sound information of the second application program, the second bluetooth device will directly display the received sound information.
And 104, sending the state information of the sound information of the first application program which is stopped to be displayed to the second Bluetooth device, so that the second Bluetooth device stops displaying the sound information of the first application program according to the state information and displays the sound information of the second application program. Specifically, the status information may be sent to the second bluetooth device through an Audio/video remote Control Profile (AVRCP) message.
It should be noted that, the first application program may be an application program for music playing, the second application program is an application program for map navigation, and the second bluetooth device determines whether to send state information for stopping playing music data to the second bluetooth device according to the identification information of the second bluetooth device and preset bluetooth device information if the first bluetooth device generates a navigation prompt tone in the process of playing music data of the first bluetooth device. When the second bluetooth device finishes playing the navigation prompt tone and the first bluetooth device determines that the music data needs to be switched to be played, whether the state information of stopping playing the navigation prompt tone needs to be sent to the second bluetooth device can be determined according to the identification information of the second bluetooth device.
In other cases, the first application may also be a map navigation application, and the second application may be a music playing application.
As can be seen, in the method of this embodiment, when the first bluetooth device determines to switch from presenting the sound information of the first application program to presenting the sound information of the second application program, if the identification information of the second bluetooth device does not match the preset bluetooth device information, the status information that the presentation of the sound information of the first application program is stopped will be sent to the second bluetooth device, and the status information will not be sent when there is a match. Therefore, a user can set the Bluetooth device information in the first Bluetooth device in advance, and the Bluetooth devices can stop all audio data streams with the first Bluetooth device when receiving the state information of stopping displaying the sound information of a certain application program, so that the influence of the transmission of the state information on the audio data stream transmission in the switching process of displaying the sound information by the Bluetooth devices is eliminated, and the second Bluetooth device can be ensured to receive the sound information of any application program of the first Bluetooth device for displaying.
In a specific embodiment, the user may set, as the preset bluetooth device information, information of a bluetooth device that stops all audio data flows with the first bluetooth device when receiving status information that stops displaying sound information of a certain application, in a local storage space, i.e., a permanent storage space of the first bluetooth device, or in another storage device, in a file form (i.e., a black list configuration file).
Thus, when the first bluetooth device performs the matching of step 103, it may directly obtain the blacklist configuration file from the local storage space, or detect whether the peripheral interface of the first bluetooth device is connected to another storage device, if so, obtain the blacklist configuration file from another storage device, where the blacklist configuration file includes the preset bluetooth device information; and then analyzing the acquired blacklist configuration file to obtain preset Bluetooth equipment information, and matching the identification information of the second Bluetooth equipment with the analyzed preset Bluetooth equipment information.
In another specific embodiment, the bluetooth device manufacturer may also set, in the bluetooth program code, information of a bluetooth device that stops all audio data flows with the first bluetooth device when receiving status information that stops displaying sound information of a certain application, as the preset bluetooth device information, in a form of a blacklist. Or the first bluetooth device may add the bluetooth setting information included in the blacklist configuration file stored in the local storage space or the storage device connected through the peripheral interface to the blacklist of the bluetooth program code when the first bluetooth device starts the bluetooth function before performing the step 101.
In this case, since the first bluetooth device stores the bluetooth program code in the storage medium of the first bluetooth device, i.e., the temporary storage medium, when the first bluetooth device starts the bluetooth function, when the first bluetooth device performs the matching in step 103, the identification information of the second bluetooth device may be directly matched with the blacklist included in the bluetooth program code stored in the local storage medium, where the blacklist includes the preset bluetooth device information.
In other specific embodiments, the first bluetooth device does not add bluetooth device information included in a blacklist profile stored in a local memory space or a storage device to which the peripheral interface is connected to the bluetooth program code. Referring to fig. 2, when the first bluetooth device is performing step 103, step 1031 may be performed first, that is, the identification information of the second bluetooth device is matched with the blacklist in the bluetooth program code, and if the identification information of the second bluetooth device is matched with the blacklist, the above status information is not transmitted; if not, step 1032 needs to be executed, that is, the identification information of the second bluetooth device is matched with the bluetooth device information in the blacklist configuration file, if not, the above step 104 is executed, and if matched, the above status information is not sent.
An embodiment of the present invention further provides a bluetooth switching apparatus, that is, the first bluetooth device, a schematic structural diagram of which is shown in fig. 3, and specifically includes:
the sound sending unit 10 is used for sending the sound information of the first application program to a second Bluetooth device for playing through Bluetooth communication connection between the sound sending unit and the second Bluetooth device;
an identification acquisition unit 11 configured to acquire identification information of the second bluetooth device when it is determined that the sound information showing the first application program is switched to the sound information showing the second application program;
a matching unit 12, configured to match the identification information acquired by the identification acquisition unit 11 with preset bluetooth device information;
in one case, the matching unit 12 is specifically configured to obtain a blacklist configuration file from a local storage space or a storage device connected through an external interface, where the blacklist configuration file includes the preset bluetooth device information; and analyzing the blacklist configuration file to obtain the preset Bluetooth equipment information, and matching the identification information with the analyzed preset Bluetooth equipment information.
A status sending unit 13, configured to send, if the matching unit 12 determines that the identification information is not matched with preset bluetooth device information, status information indicating that the presentation of the sound information of the first application program is stopped to a second bluetooth device, so that the second bluetooth device presents the sound information of the second application program according to the status information; and if the state information is matched, not sending the state information.
It should be noted that, the first application program may be a music playing application program, the second application program is a map navigation application program, and if the bluetooth switching apparatus generates a navigation prompt tone during the process of playing music data of the bluetooth switching apparatus, the state sending unit 13 may determine whether to send state information for stopping playing the music data to the second bluetooth device according to the identification information of the second bluetooth device matched by the matching unit 12 and preset bluetooth device information. When the second bluetooth device has finished playing the navigation prompt tone, and the bluetooth switching apparatus determines that the second bluetooth device needs to switch to playing the music data, the status sending unit 13 may determine whether it is necessary to send the status information of stopping playing the navigation prompt tone to the second bluetooth device according to the identification information of the second bluetooth device.
In other cases, the first application may also be a map navigation application, and the second application may be a music playing application.
In the apparatus of the present embodiment, when it is determined that the sound information of the first application program is switched to the sound information of the second application program, if the matching unit 12 determines that the identification information of the second bluetooth device does not match the preset bluetooth device information, the status transmitting unit 13 transmits the status information of stopping displaying the sound information of the first application program to the second bluetooth device, and does not transmit the status information when matching. Therefore, a user can set the bluetooth device information in the bluetooth switching device in advance, and the bluetooth devices stop all audio data streams between the bluetooth switching device when receiving the state information of stopping displaying the sound information of a certain application program, so that the influence of the transmission of the state information on the audio data stream transmission in the switching process of displaying the sound information by the bluetooth devices is eliminated, and the second bluetooth device is ensured to be capable of receiving the sound information of any application program of the bluetooth switching device for displaying.
Referring to fig. 4, in a specific embodiment, the bluetooth switching apparatus may further include an adding unit 14 in addition to the structure shown in fig. 3, and the matching unit 12 may be implemented by the first matching unit 121, or by the first matching unit 121 and the second matching unit 122, wherein:
the first matching unit 121 is specifically configured to match the identifier information acquired by the identifier acquiring unit 11 with a blacklist included in a bluetooth program code stored in a local storage medium, where the blacklist includes the preset bluetooth device information. In one case, if the identification information acquired by the identification acquisition unit 11 does not match the bluetooth device in the blacklist, the status transmission unit 13 transmits the above status information.
An adding unit 14, configured to add, when the bluetooth function of the bluetooth connection apparatus is started, bluetooth setting information included in a blacklist profile stored in a local storage space or a storage device connected through a peripheral interface to a blacklist of the bluetooth program code. The first matching unit 121 can thus perform matching according to the bluetooth program code added by the adding unit 14.
A second matching unit 122, configured to match, if the first matching unit 121 determines that the identification information is not matched with the bluetooth device information in the blacklist list, the identification information with the bluetooth device information in a blacklist configuration file stored in a local storage space or a storage device connected through a peripheral interface.
In the present embodiment, in another case, if the first matching unit 121 determines that there is no match, the matching is continued by the second matching unit 122, if the second matching unit 122 determines that there is no match, the status information is transmitted by the status transmitting unit 13, and if the second matching unit 122 determines that there is a match, the status transmitting unit 13 does not transmit the status information.
An exemplary structure of the terminal device platform is shown in fig. 5, and the terminal device platform may generate a relatively large difference due to different configurations or performances, and may include one or more Central Processing Units (CPUs) 20 (e.g., one or more processors) and a memory 21, and one or more storage media 22 (e.g., one or more mass storage devices) storing the application programs 221 or the data 222. Wherein the memory 21 and the storage medium 22 may be a transient storage or a persistent storage. The program stored on the storage medium 22 may include one or more modules (not shown), each of which may include a sequence of instructions operating on the terminal device platform. Still further, the central processor 20 may be configured to communicate with the storage medium 22 to execute a series of instruction operations in the storage medium 22 on the terminal device platform.
Specifically, the application 221 stored in the storage medium 22 includes a bluetooth-connected application, and the application may include the acquiring unit 10, the matching unit 11, the setting unit 12, the connecting unit 13, and the adding unit 14 in the bluetooth-connected apparatus, which will not be described herein again. Further, the central processor 20 may be configured to communicate with the storage medium 22, and execute a series of operations corresponding to the bluetooth-connected application stored in the storage medium 22 on the playback device.
The end device platform may also include one or more power supplies 23, one or more wired or wireless network interfaces 24, one or more input-output interfaces 25, and/or one or more operating systems 223, such as Windows Server (TM), Mac OS XTM, Unix (TM), Linux (TM), FreeBSD (TM), and the like.
The steps executed by the first bluetooth device in the above method embodiment may be based on the structure of the terminal device platform shown in fig. 5.
Those skilled in the art will appreciate that all or part of the steps in the methods of the above embodiments may be implemented by associated hardware instructed by a program, which may be stored in a computer-readable storage medium, and the storage medium may include: read Only Memory (ROM), Random Access Memory (RAM), magnetic or optical disks, and the like.
The bluetooth connection method and apparatus provided by the embodiment of the present invention are described in detail above, and a specific example is applied in this document to explain the principle and the implementation of the present invention, and the description of the above embodiment is only used to help understanding the method and the core idea of the present invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present invention.
Claims (13)
1. A Bluetooth handoff method, comprising:
the first Bluetooth device sends the sound information of the first application program to the second Bluetooth device for playing through Bluetooth communication connection with the second Bluetooth device;
when the first Bluetooth device determines to switch from showing the sound information of the first application program to showing the sound information of the second application program, acquiring the identification information of the second Bluetooth device;
the first Bluetooth device matches the identification information with preset Bluetooth device information, and if the identification information is not matched with the preset Bluetooth device information, the state information of stopping displaying the sound information of the first application program is sent to a second Bluetooth device, so that the second Bluetooth device can display the sound information of the second application program according to the state information; and if the state information is matched with the sound information, after the state information is stopped being sent to the second Bluetooth device, the sound information of the second application program is directly sent to the second Bluetooth device, so that the second Bluetooth device can directly display the received sound information.
2. The method of claim 1, wherein the matching the identification information with preset bluetooth device information specifically comprises:
acquiring a blacklist configuration file from a local storage space or a storage device connected through a peripheral interface, wherein the blacklist configuration file comprises the preset Bluetooth device information;
and analyzing the blacklist configuration file to obtain the preset Bluetooth equipment information, and matching the identification information with the analyzed preset Bluetooth equipment information.
3. The method of claim 1, wherein the matching the identification information with preset bluetooth device information specifically comprises:
and matching the identification information with a blacklist included in a Bluetooth program code stored in a local storage medium, wherein the blacklist includes the preset Bluetooth equipment information.
4. The method of claim 3, wherein prior to the first Bluetooth device connecting via Bluetooth communication with a second Bluetooth device, the method further comprises:
when the Bluetooth function of the first Bluetooth device is started, the first Bluetooth device adds Bluetooth setting information included in a blacklist configuration file stored in a local storage space or a storage device connected through a peripheral interface into a blacklist list of the Bluetooth program code.
5. The method of claim 3, wherein said matching said identification information with preset Bluetooth device information further comprises:
and if the identification information is not matched with the Bluetooth equipment information in the blacklist list, matching the identification information with the Bluetooth equipment information in a blacklist configuration file stored in a local storage space or a storage device connected through an external interface.
6. The method of any one of claims 1 to 5,
the identification information of the second Bluetooth device is address information of the second Bluetooth device, or high 3-bit address information in the address of the second Bluetooth device;
the first application program is an application program for music playing, and the second application program is an application program for map navigation; or the first application program is an application program for map navigation, and the second application program is an application program for music playing.
7. A bluetooth connection device, comprising:
the sound sending unit is used for sending the sound information of the first application program to the second Bluetooth equipment for playing through Bluetooth communication connection between the sound sending unit and the second Bluetooth equipment;
the identification acquisition unit is used for acquiring the identification information of the second Bluetooth device when the switching from the sound information for displaying the first application program to the sound information for displaying the second application program is determined;
the matching unit is used for matching the identification information with preset Bluetooth equipment information;
a status sending unit, configured to send status information indicating that the presentation of the sound information of the first application program is stopped to a second bluetooth device if the identification information is not matched with preset bluetooth device information, so that the second bluetooth device presents the sound information of the second application program according to the status information; and if the state information is matched with the sound information, after the state information is stopped being sent to the second Bluetooth device, the sound information of the second application program is directly sent to the second Bluetooth device, so that the second Bluetooth device can directly display the received sound information.
8. The apparatus of claim 7,
the matching unit is specifically configured to acquire a blacklist configuration file from a local storage space or a storage device connected through a peripheral interface, where the blacklist configuration file includes the preset bluetooth device information; and analyzing the blacklist configuration file to obtain the preset Bluetooth equipment information, and matching the identification information with the analyzed preset Bluetooth equipment information.
9. The apparatus of claim 7, wherein the matching unit comprises:
the first matching unit is specifically configured to match the identification information with a blacklist included in a bluetooth program code stored in a local storage medium, where the blacklist includes the preset bluetooth device information.
10. The apparatus of claim 9, further comprising:
and the adding unit is used for adding the Bluetooth setting information contained in a local storage space or a blacklist configuration file stored by a storage device connected through an external interface into a blacklist of the Bluetooth program code when the Bluetooth function of the Bluetooth connecting device is started.
11. The apparatus of claim 9, wherein the matching unit further comprises:
and the second matching unit is used for matching the identification information with the Bluetooth equipment information in the blacklist configuration file stored in a local storage space or a storage device connected through an external interface if the identification information is not matched with the Bluetooth equipment information in the blacklist list.
12. The device according to any of the claims 7 to 11,
the first application program is an application program for music playing, and the second application program is an application program for map navigation; or the first application program is an application program for map navigation, and the second application program is an application program for music playing.
13. A storage medium having stored therein a computer program which, when run on a computer, causes the computer to perform the steps in the bluetooth handover method according to any one of claims 1 to 6.
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| CN101246417B (en) * | 2007-02-13 | 2010-09-29 | 艾威梯科技(北京)有限公司 | Method and system for non-intermittence software switch of audio data flow input/output |
| US20150042447A1 (en) * | 2013-08-09 | 2015-02-12 | Flyover Innovations, Llc | Entertainment environment remote control and audio/video streaming method and system |
| CN105225684B (en) * | 2015-08-19 | 2018-02-09 | 上海创单电子科技有限公司 | It is a kind of that transport information or the method for navigation information are listened in broadcast listening |
| CN105546500A (en) * | 2016-02-05 | 2016-05-04 | 上海顿格电子贸易有限公司 | Music playing system of lamp |
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