CN112802502A - Vehicle-mounted intelligent USB flash disk and audio content distribution method and system based on network service - Google Patents
Vehicle-mounted intelligent USB flash disk and audio content distribution method and system based on network service Download PDFInfo
- Publication number
- CN112802502A CN112802502A CN202110253190.8A CN202110253190A CN112802502A CN 112802502 A CN112802502 A CN 112802502A CN 202110253190 A CN202110253190 A CN 202110253190A CN 112802502 A CN112802502 A CN 112802502A
- Authority
- CN
- China
- Prior art keywords
- audio content
- vehicle
- flash disk
- user
- usb flash
- 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.)
- Granted
Links
Images
Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
- G11B20/10—Digital recording or reproducing
- G11B20/10527—Audio or video recording; Data buffering arrangements
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/06—Digital input from, or digital output to, record carriers, e.g. RAID, emulated record carriers or networked record carriers
- G06F3/0601—Interfaces specially adapted for storage systems
- G06F3/0602—Interfaces specially adapted for storage systems specifically adapted to achieve a particular effect
- G06F3/0604—Improving or facilitating administration, e.g. storage management
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/06—Digital input from, or digital output to, record carriers, e.g. RAID, emulated record carriers or networked record carriers
- G06F3/0601—Interfaces specially adapted for storage systems
- G06F3/0628—Interfaces specially adapted for storage systems making use of a particular technique
- G06F3/0646—Horizontal data movement in storage systems, i.e. moving data in between storage devices or systems
- G06F3/0652—Erasing, e.g. deleting, data cleaning, moving of data to a wastebasket
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/06—Digital input from, or digital output to, record carriers, e.g. RAID, emulated record carriers or networked record carriers
- G06F3/0601—Interfaces specially adapted for storage systems
- G06F3/0668—Interfaces specially adapted for storage systems adopting a particular infrastructure
- G06F3/067—Distributed or networked storage systems, e.g. storage area networks [SAN], network attached storage [NAS]
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
- G11B20/10—Digital recording or reproducing
- G11B20/10527—Audio or video recording; Data buffering arrangements
- G11B2020/10537—Audio or video recording
- G11B2020/10546—Audio or video recording specifically adapted for audio data
Landscapes
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Human Computer Interaction (AREA)
- Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Signal Processing For Digital Recording And Reproducing (AREA)
Abstract
The vehicle-mounted intelligent USB flash disk comprises a random access memory, a read-only memory, an external data memory, an I/O interface, a central processing unit and a communication module, wherein the I/O interface is connected with a USB interface, and the USB interface is used for being connected with a vehicle machine to transmit data and accessing a power supply from the vehicle machine to supply power to each part. The vehicle-mounted intelligent USB flash disk can generate playing record data of each audio content, after the communication module is connected with the remote data center, the remote data center can perform data interaction with the vehicle-mounted intelligent USB flash disk without manually updating the audio content, and the audio content in the USB flash disk is more in line with the requirements of users, so that the situation that the audio needs to be manually switched in the driving process can be reduced, the attention of the users is focused on the driving operation of vehicles, the driving safety and the user experience are improved, and the vehicle-mounted intelligent USB flash disk is used as a network service terminal carrier, so that basic conditions are created for large-scale distribution and operation of high-quality audio content.
Description
Technical Field
The invention relates to the technical field of internet entertainment, in particular to a vehicle-mounted intelligent USB flash disk and an audio content distribution method and system based on network service.
Background
Most of vehicle-mounted entertainment systems configured on early vehicles are CD machines, which can ensure excellent sound quality effect, but the CD machines are large in size and high in cost, and the loading amount of the CD machines is reduced year by year due to the gradual reduction of the CD record distribution amount.
After the CD player, the vehicle-mounted entertainment system on the automobile mostly adopts the scheme of acquiring a media source from a removable memory through a USB interface to realize music playing, the USB transmission speed is high, the transmission requirement of high-fidelity audio information can be met, and the USB flash disk is connected with the vehicle-mounted entertainment system through the USB interface and can be used in a plug-and-play mode, so that the vehicle-mounted music flash disk is produced at the end, however, the traditional vehicle-mounted music flash disk has the following defects in the actual use process which influence the popularization and the application of the vehicle-mounted music flash disk: 1. Because commercially available music USB flash disks are produced and sold in batches, in order to adapt to wider crowds, a large part of the USB flash disks are not the audio frequency liked by the current user, and the user needs to manually switch to skip the content disliked by the user in the driving process, so that the attention concentration is influenced, and the driving safety is not facilitated. 2. The content is not updated conveniently. The seller usually does not provide subsequent content updating service, and if the user wants to update the content in the disk, the user needs to insert the flash disk into a computer to manually delete the old file and then download the new audio file, so that the use is inconvenient and the user experience is influenced. In addition, most of free audio provided on the internet is low-quality files, and additional payment is needed to download high-fidelity or lossless-quality files, so that the payment cost of a single user is high. 3. Due to the existence of the problems 1 and 2, the current user group scale of the music flash disk is small, the upstream copyright expense cost is difficult to be shared through the downstream user scale, and the large-scale operation cannot be realized.
Along with the development of communication technology, the mode that on-vehicle music USB dish listened to song is gradually little, and there have been a lot of cars at present to realize car machine and cell-phone communication through on-vehicle bluetooth, and the cell-phone plays the music on line through mobile network and just can transmit audio signal to car machine system via the bluetooth again, and this mode has realized car machine system on-line playing music with the help of the cell-phone, but there often exists the condition that audio frequency detail loses in the signal transmission process, has reduced tone quality, to car music fan, on-vehicle bluetooth listening song can't satisfy the demand at all. In addition, some brands of automobiles have network music players (such as cool music) built in the automobile systems, the automobile systems play music online through the network of the mobile operator, but the online music playing needs to consume more network traffic, the traffic cost is not cost-effective, and the requirement on the network speed is higher due to the large high-quality music file, so that the situation of intermittent jamming is easy to occur, and the situation that the music cannot be played even in some places (such as remote mountainous areas) with weak signal strength of wireless communication networks is likely to occur. Compared with the mode, the vehicle-mounted music USB flash disk has obvious advantages in the aspects of sound effect and playing fluency.
Disclosure of Invention
One of the purposes of the invention is to provide a vehicle-mounted intelligent USB flash drive which is more convenient to use, and based on the vehicle-mounted intelligent USB flash drive, the invention also provides an audio content distribution system based on network service, so as to further reduce the user cost and improve the user experience, thereby realizing the large-scale network operation of high-quality audio content.
In order to achieve the purpose, the invention firstly adopts the following technical scheme: a vehicle-mounted intelligent USB flash disk comprises a random access memory, a read-only memory, an external data memory, an I/O interface, a central processing unit and a communication module, wherein the random access memory, the read-only memory, the external data memory and the I/O interface are all connected with the central processing unit through an address bus, a data bus and a control bus, the I/O interface is externally connected with a USB interface, and the USB interface is used for being connected with a vehicle machine to transmit data and accessing a power supply from the vehicle machine to supply power to all parts in the USB flash disk;
the central processing unit is used for processing and processing data, the random access memory is used for temporarily storing data, the read-only memory is stored with a USB flash disk control and data processing program, the external data memory is stored with audio content and record data generated by processing and processing the audio content by the central processing unit and played recently, and the communication module is used for connecting a remote data center to realize information interaction between the USB flash disk and the remote data center, so that the remote data center can delete and update the audio content in the USB flash disk according to the played record data;
the communication module comprises a downlink communication link for realizing data transmission from the remote data center to the USB flash disk and an uplink communication link for realizing data transmission from the USB flash disk to the remote data center; the uplink communication link and the downlink communication link share an antenna, a circulator and a digital signal processing module, the circulator is connected with the antenna, and the digital signal processing module is connected with an I/O interface; the downlink communication link comprises an amplifier 1, a band-pass filter 1, a frequency mixer, a low-pass filter and an analog-to-digital converter which are connected in sequence, the frequency mixer is also connected with an oscillator, the input end of the amplifier 1 is connected with a circulator, and the analog-to-digital converter is connected with a digital signal processing module; the uplink communication link comprises a low-pass filter 2, a modulator, a band-pass filter 2 and an amplifier 2 which are sequentially connected, the amplifier 2 is connected with the circulator, and the low-pass filter 2 is connected with the digital signal processing module.
In addition, above-mentioned on-vehicle intelligent USB flash disk still includes the orientation module who is connected with central processing unit, orientation module is used for sending the location data to central processing unit for central processing unit can judge the motion state of corresponding vehicle and only generate the record data that each audio content was broadcast in the vehicle driving process according to the change of location data.
Furthermore, the vehicle-mounted intelligent USB flash disk also comprises a battery used for supplying power to the random access memory, the read-only memory, the external data memory, the central processing unit and the communication module.
The battery is a rechargeable battery, and the battery is connected with the USB interface and is charged by an external power supply of the USB interface.
Preferably, the vehicle-mounted intelligent flash disk further comprises a first switch for controlling on/off of a circuit for supplying power to the random access memory, the read-only memory, the external data memory, the central processing unit and the communication module by the battery, and a second switch for controlling on/off of a circuit for supplying power to the communication module by the USB interface.
On the other hand, the invention also provides an audio content distribution method based on network service, which records the condition that the audio content is played in the running process of the vehicle through the vehicle-mounted intelligent USB flash disk and forms playing record data;
and after the communication connection between the vehicle-mounted intelligent USB flash disk and the remote data center is established, acquiring new playing record data from the vehicle-mounted intelligent USB flash disk through the remote data center, comprehensively analyzing the new playing record data and historical playing record data stored in the remote data center, and updating the audio content in the corresponding vehicle-mounted intelligent USB flash disk according to the comprehensive analysis result.
Wherein the playing the recorded data comprises:
the characteristic information of the audio content which is executed skipping in the audio playing process, the corresponding time point when the corresponding audio content is executed skipping and the number of times of executing skipping;
the characteristic information of the audio content repeatedly played in the audio playing process, the corresponding time point when the corresponding audio content is executed with the repeated playing operation and the repeated playing times thereof.
Further, when analyzing the playback record data comprehensively: firstly, counting the total times of repeated playing and skipping of corresponding audio contents in a set time limit range and comparing the total times of repeated playing and skipping;
if the total times of the executed skipping operation is larger than the total times of the executed repeated playing, further analyzing the continuity of the audio content for the skipping executed in the set time limit range to obtain the current dislike degree of the user for the audio content, and if the current dislike degree of the user for the audio content is smaller than the preset threshold value of the dislike degree, obtaining the future favorable recovery degree of the user for the audio content according to the total times of the audio content for the repeated playing up to now, the total times and the continuity of the audio content for the repeated playing executed before the skipping operation is executed for the first time;
if the total times of the skipping operation is smaller than or equal to the total times of the repeated playing, further analyzing the continuity of the repeated playing of the audio content in the set time limit range to obtain the current good feeling of the user to the audio content, and if the current good feeling of the user to the audio content is smaller than a good feeling threshold value, obtaining the good feeling attenuation degree of the user to the audio content in the future according to the total times and the continuity of the repeated playing of the audio content after the skipping operation is performed for the first time and the total times of the repeated playing of the audio content until now.
Furthermore, when the audio content in the corresponding vehicle-mounted intelligent USB flash disk is updated according to the comprehensive analysis result:
if the current aversion degree of the user to the audio content is larger than or equal to the set threshold value of the aversion degree, or the current aversion degree of the user to the audio content is smaller than the set threshold value of the aversion degree but the future favorable restoration degree of the user to the audio content is smaller than the set threshold value of the favorable restoration degree, or the current favorable restoration degree of the user to the audio content is smaller than the set threshold value of the favorable restoration degree and the future favorable attenuation degree of the user to the audio content is larger than the set threshold value of the favorable attenuation degree, deleting the audio content;
if the current good sensibility of the user to the audio content is larger than a set threshold value of the good sensibility, the audio content is reserved;
if the current aversion degree of the user to the audio content is smaller than the set threshold value of the aversion degree and the future favorable restoration degree of the user to the audio content is larger than or equal to the set threshold value of the favorable restoration degree, or the current favorable degree of the user to the audio content is smaller than the set threshold value of the favorable degree but the future favorable attenuation degree of the user to the audio content is smaller than or equal to the set threshold value of the favorable attenuation degree, the corresponding audio content is locked so that the audio content cannot be played in the set favorable restoration period and is unlocked after the favorable restoration expires.
Furthermore, when the audio content in the corresponding vehicle-mounted intelligent flash disk is updated according to the comprehensive analysis result, the method further comprises the following steps: and the remote data center pushes the audio content with similar characteristic information to the audio content to the vehicle-mounted intelligent USB flash disk according to the characteristic information of the audio content reserved at the current time, and stores the pushed audio content to the vehicle-mounted intelligent USB flash disk.
Finally, the invention also relates to an audio content distribution system based on network service, which comprises a remote data center positioned at a cloud end and a plurality of vehicle-mounted intelligent USB flash disks positioned at a user end, wherein the vehicle-mounted intelligent USB flash disks are connected with the remote data center through a wireless local area network or a mobile communication network and carry out data interaction according to the audio content distribution method.
The vehicle-mounted intelligent USB flash disk provided by the invention can generate playing record data of each audio content through processing by the central processing unit and store the playing record data in the external data storage, and after the communication module embedded in the USB flash disk is connected with the remote data center, the remote data center can perform data interaction with the USB flash disk (data interaction and audio content updating can be performed in a network and a playing idle period without real-time data interaction and content updating), and can accurately delete the audio content stored in the external data storage based on the playing record data (namely, delete the audio content disliked by a user), reserve (namely, reserve the audio content liked by the user) and add (namely, add the audio content liked by the user), thereby avoiding the problem of inconvenient use caused by the need of manual updating of the traditional music USB flash disk and improving the use experience of the user. In addition, after the audio content is updated based on the playing record data, the audio in the flash disk can better meet the requirements of users, and further the situation that the audio needs to be manually switched in the driving process is reduced, so that the users can concentrate more attention on the driving operation of the vehicle, and the driving safety is improved. In summary, the vehicle-mounted intelligent USB flash disk provided by the invention solves the key problem of hindering the popularization and application of the traditional music USB flash disk, and the vehicle-mounted intelligent USB flash disk is used as a network service terminal carrier, so that a basic condition is created for the large-scale distribution operation of high-quality (especially lossless tone quality) audio content.
Drawings
Fig. 1 is a block diagram of an overall structure of a vehicle-mounted intelligent flash disk according to the embodiment.
Fig. 2 is a schematic circuit structure diagram of a communication module in the vehicle-mounted intelligent flash disk.
Detailed Description
In order to facilitate understanding of those skilled in the art, the present invention will be further described with reference to the following embodiments and accompanying drawings.
Fig. 1 shows a structure of an in-vehicle intelligent flash disk, which includes a random access memory, a read only memory, an external data storage, an I/O interface, a central processing unit, and a communication module, as shown. The random access memory, the read only memory, the external data memory and the I/O interface are all connected with the central processing unit through an address bus, a data bus and a control bus, the I/O interface is externally connected with a USB interface (the USB interface is not shown in the drawing), and is connected with a vehicle machine (namely vehicle-mounted electronic equipment in the drawing) through the USB interface so as to transmit data and access a power supply from the vehicle machine to supply power to all parts in the USB flash disk.
The main functions of the above parts are: the central processing unit is used for processing and processing data, the random access memory is used for temporarily storing data, the read-only memory stores a USB flash disk control and data processing program, the external data memory stores audio content and record data generated by processing and processing the central processing unit and played by the audio content recently, and the communication module is mainly used for connecting a remote data center to realize information interaction between the USB flash disk and the remote data center, so that the remote data center can delete and update the audio content in the USB flash disk according to the played record data. Since the central processing unit, the random access memory, the read only memory and the external data memory are commonly used components in the existing intelligent electronic device, detailed descriptions of specific structures and detailed connection modes of the components are omitted, and only the detailed structure of the communication module is mainly described below.
The structure of the communication module is shown in fig. 2, which includes a downlink communication link for implementing data transmission from the remote data center to the flash disk and an uplink communication link for implementing data transmission from the flash disk to the remote data center. The uplink communication link and the downlink communication link share an antenna, a circulator and a digital signal processing module, the circulator is connected with the antenna, and the digital signal processing module is connected with an I/O interface. Specifically, the downlink communication link comprises an amplifier 1, a band-pass filter 1, a mixer, a low-pass filter and an analog-to-digital converter which are connected in sequence, the mixer is further connected with an oscillator, wherein the input end of the amplifier 1 is connected with a circulator, and the analog-to-digital converter is connected with a digital signal processing module. The uplink communication link comprises a low-pass filter 2, a modulator, a band-pass filter 2 and an amplifier 2 which are sequentially connected, wherein the amplifier 2 is connected with the circulator, and the low-pass filter 2 is connected with the digital signal processing module. The working principle of the communication module is as follows: when data is transmitted downwards, an antenna receives signals from a remote data center, the data is transmitted to an amplifier 1 through a circulator to realize amplification, then microwave signals reflected by a frequency mixer and an oscillator are subjected to filtering through a band-pass filter 1 to realize down-conversion and output intermediate frequency signals, high-frequency components are filtered through a low-pass filter and enter an analog-to-digital converter to realize conversion from analog signals to digital signals, and finally, the high-frequency components are subjected to relevant processing through a digital signal processing module and then are accessed through an I/O interface, so that the data communication process from a data center station to a vehicle-mounted USB flash disk is completed. When data is transmitted in an uplink mode, signals are connected into an uplink communication link through an I/O interface, the signals enter a low-pass filter 2 to achieve filtering processing on high-frequency stray signals after passing through a digital signal processing module, then signal up-conversion is achieved through a modulator, radio frequency communication frequency bands are selected through a band-pass filter 2 and then enter an amplifier 2 to achieve signal loss compensation, amplified radio frequency signals are transmitted to an antenna through a circulator, finally the signals are transmitted to a remote data center through the antenna, and the data communication process from a vehicle-mounted intelligent USB flash disk to the remote data center is completed. Further, as shown in fig. 2, the circulator is a three-port device, and signals can only flow in the order of 1-2-3 according to the direction indicated in the figure, namely, signals of 1 port can only flow out through 2 ports; signals of the 3 ports can only flow out through the 1 port, and uplink signals of the downlink signal pole can be shunted through the circulator, so that duplex communication of the communication module is realized.
It should be noted that the communication module is not limited to be connected to a remote data center through a mobile communication network, but may also be in communication with the remote data center only through a user's home or other wireless local area network without additional payment, so as to save the traffic charges of the mobile network, and meanwhile, since the data interaction and the audio content update are performed in the wireless local area network and in the idle playing period, rather than the data interaction and the content update are performed in real time, the data interaction and the content update are not affected by the audio content playing, and in the wireless local area network, the speed of the data interaction and the content update is not affected by the strength of the mobile communication signal.
Different from a traditional music USB flash disk, the vehicle-mounted intelligent USB flash disk can generate playing record data corresponding to each audio content in the USB flash disk through processing of the central processing unit and store the playing record data in the external data storage, and after the communication module is connected with the remote data center, the remote data center can precisely delete (namely delete the audio content disliked by a user), reserve (namely reserve the audio content liked by the user) and newly add (namely add the audio content probably liked by the user) the audio content stored in the external data storage based on the playing record data, so that the problem of inconvenient use caused by the fact that the traditional music USB flash disk needs to be manually updated is avoided, and the use experience of the user is improved. In addition, after the remote data center updates the audio content based on the playing and recording data, the audio in the USB flash disk better meets the requirements of users, so that the situation that the audio needs to be manually switched in the driving process can be reduced, the attention of the users can be concentrated in the driving operation of the vehicle, and the driving safety is indirectly improved. In conclusion, it can be known from analysis that the key problem of hindering popularization and application of the conventional music flash disk in the background art is solved by the vehicle-mounted intelligent flash disk, and the vehicle-mounted intelligent flash disk serves as a network service terminal carrier and creates a basic condition for large-scale distribution and operation of high-quality (especially lossless tone quality) audio content.
As an optional implementation, a positioning module connected to the central processing unit may be further disposed in the vehicle-mounted intelligent flash disk shown in fig. 1, where the positioning module is configured to send positioning data to the central processing unit, and it should be noted that, in this embodiment, the positioning module is not used for positioning and anti-losing of the vehicle-mounted intelligent flash disk or used for intelligent navigation, and is used to enable the central processing unit to determine a motion state of a corresponding vehicle according to a change of the positioning data and only generate recorded data that each audio content is played during a driving process of the vehicle. The design aims to improve the precision and effectiveness of playing the recorded data and avoid the influence of 'doubt data' on the analysis result. In the present embodiment, the "dubbing data" means playback record data that is likely to fail to accurately reflect the actual enjoyment or dislike of audio content by the user. For example, in a parking state, it is likely that the reason why the skip operation is performed on the current audio content is not that the user dislikes it highly, but that the skip operation is performed on the current audio content to find another audio content with higher perceptibility, and for example, the reason why a certain audio content is repeatedly played is likely that the user does not hear it highly, but that the repeat play operation is performed on the audio content because the user does not hear the content completely (e.g., does not hear lyrics) when playing the audio. When the vehicle is in a running state, since the user's attention needs to be focused on the driving operation, the behavior thereof is relatively less affected by other factors than the audio content itself. Therefore, in this embodiment, the "doubt data" mainly relates to the recorded data of the parking status. Of course, the above examples are only used to illustrate that the playing operation behavior of the user in the parking state is more random, and the playing operation behavior is more easily affected by other factors besides the audio content itself, and the uncertainty is stronger. Therefore, theoretically, the playing record data obtained after the vehicle motion state is monitored and the 'doubt data' is eliminated through the positioning module is more accurate and effective, and the audio content updated according to the playing record data can better meet the requirements of users.
In addition, a battery for supplying power to the random access memory, the read only memory, the external data memory, the central processing unit and the communication module is further arranged in the vehicle-mounted intelligent flash disk of the above embodiment, preferably, the battery is a rechargeable battery, the battery is connected with the USB interface and can be charged by an external power supply through the USB interface, and the vehicle-mounted intelligent flash disk further comprises a first switch for controlling the on-off of a circuit for supplying power to the random access memory, the read only memory, the external data memory, the central processing unit and the communication module by the battery and a second switch for controlling the on-off of a circuit for supplying power to the communication module by the USB interface. The purpose of setting the battery for supplying power to each part in the USB flash disk is mainly to facilitate the content updating of a user in a wireless local area network environment, after the battery is set, the USB flash disk does not need to be plugged into a computer or other electronic equipment to access a power supply when the content of the USB flash disk is updated, and the battery carried by the USB flash disk can supply power to each part and be accessed into the wireless local area network, so that data interaction with a remote data center is realized, and the audio content updating is completed. The first switch is provided to mainly facilitate the user to cut off the power supply when the flash disk is idle (i.e. not playing, not updating the content), and save the power consumption. And still set up the purpose of second switch on the basis of setting up first switch and be when the user connects the USB flash disk car machine broadcast audio content, can cut off battery supply circuit, let the USB flash disk only supply power through car machine equipment, save battery power consumption. In addition, after the first switch and the second switch are set, a user can cut off and establish communication network connection at any time according to needs, and the time for updating the audio content is controlled by the user (certainly, the remote data center can also set the updating interval duration, for example, the updating is performed every 15 days, if the remote data center cannot be connected with the intelligent USB flash disk on the set updating day, the content updating can be executed after the communication connection is established between the remote data center and the intelligent USB flash disk next time), so that the situation that playing is blocked or even an error is caused due to the content updating during the audio playing is avoided.
The invention also provides an audio content distribution method based on network service, which takes the vehicle-mounted intelligent USB disk as a carrier, and needs to record the situation that the audio content is played during the running process of a vehicle through the vehicle-mounted intelligent USB disk and form play record data, and after the vehicle-mounted intelligent USB disk establishes communication connection with a remote data center, new play record data is obtained from the vehicle-mounted intelligent USB disk through the remote data center (the new play record data is relative to the historical play record data stored in the remote data center, and is recorded with the historical play record data stored in the remote data center in different time periods, and the operation behavior that the audio content is executed in the latest period or more than the present time is recorded, and the new play record data can be the play record data in the latest period or more than the present time) and comprehensively analyzes the new play record data and the historical play record data stored in the remote data center, and updating the audio content in the corresponding vehicle-mounted intelligent USB flash disk according to the comprehensive analysis result.
Specifically, the playing record data may include: 1. the characteristic information of the audio content for which skipping is performed in the audio playing process, the corresponding time point when the corresponding audio content is skipped and the number of times of skipping is performed. 2. The characteristic information of the audio content repeatedly played in the audio playing process, the corresponding time point when the corresponding audio content is executed with the repeated playing operation and the repeated playing times thereof. It should be noted that the characteristic information of the audio content may be audio fingerprint information of the audio content, or may be tag information of the audio content (the tag information may be, for example, a music type, a creator name, a performer name, a region to which a work belongs, a creation year, and the like of the audio content), or may be both the audio fingerprint and the tag information.
When the playing record data are comprehensively analyzed: firstly, the total times of repeated playing and skipping of the corresponding audio content in the set time limit range are counted and compared. The time limit range may be adjusted according to the operation service requirement, and may be, for example, half a month or a month. The statistical result can be divided into three cases, that is, the total number of times of performing the skip is greater than the total number of times of performing the repeat play, the total number of times of performing the skip is less than the total number of times of performing the repeat play, and the total number of times of performing the skip is equal to the total number of times of performing the repeat play. The following further analysis is made for each of the above three cases.
If the total number of times of executed skipping operation is larger than the total number of times of executed repeated playing, further analyzing the continuity of the audio content executed skipping within the set time limit range to obtain the current dislike degree of the user for the audio content, and if the current dislike degree of the user for the audio content is smaller than the dislike degree set threshold value, further obtaining the favorable recovery degree of the user for the audio content in the future according to the total number of times of executed repeated playing of the audio content until now, the total number of times of executed repeated playing of the audio content before the first execution of the skipping operation and the continuity.
If the total times of the skipping operation of certain audio content is less than or equal to the total times of the repeated playing, further analyzing the continuity of the repeated playing of the audio content in the set time limit range to obtain the current good feeling of the user to the audio content, and if the current good feeling of the user to the audio content is less than a good feeling threshold value, further obtaining the good feeling attenuation degree of the user to the audio content in the future according to the total times and the continuity of the repeated playing of the audio content after the skipping operation is performed for the first time and the total times of the repeated playing of the audio content until now.
To facilitate those skilled in the art to better understand how the aforementioned "continuity of being skipped," the "dislike degree of the user for the audio content", "the" good recovery degree of the user for the audio content in the future "," continuity of being repeatedly played ", the" good feeling degree of the user for the audio content in the present "and" good attenuation degree of the user for the audio content in the future "are calculated, the following examples are merely illustrative, and those skilled in the art should understand that the following examples are only implementation means for reference, and various settings and adjustments can be made according to actual situations in a specific application.
The "continuity of skipping being performed" may be understood as the non-intermittency of the skipping operation being performed on the audio content. For example, within a set time limit, if an audio content is skipped once, the continuity value of the skipped audio content is 0.1, if an audio content is skipped twice consecutively (the skipping operation performed twice consecutively means that the user performs the skipping operation on the audio content when playing the audio content for the first time, and the user performs the skipping operation on the audio content when playing the audio content for the second time), the continuity value of the skipped audio content is 0.1+0.2, if the audio content is skipped three times consecutively, the continuity value of the skipped audio content is 0.1+ (0.2 × 2), if the audio content is skipped twice consecutively, the continuity value of the skipped audio content is 0.1+ (0.2 × 2 × 2), and so on. If the audio content is skipped twice in the set time limit range and then is played (i.e. after the skipping is performed twice, the continuity of the skipping is interrupted), then three times in succession, the continuity value of the skipping performed by the audio content in the set time limit range is 0.1+0.2+ (0.2 × 2), if the audio content is skipped twice in the set time limit range and then is played, then three times in succession, then is played, and then four times in succession, the continuity value of the skipping performed by the audio content in the set time limit range is 0.1+0.2+ (0.2 × 2) + (0.2 × 2 × 2), and so on. The continuity value calculated as above, in which the audio content is skipped within the set time limit, may be used as the "current dislike degree of the user for the audio content".
The above-mentioned "user-friendly recovery degree for the audio content in the future" may be defined as a sum of a variable a value and a variable B value, that is, user-friendly recovery degree for the audio content in the future = variable a value + variable B value, where variable a value = total number of times that the audio content is repeatedly played before the skip operation is performed for the first time/(2 × total number of times that the audio content is repeatedly played until now), and variable B value may be defined as a continuity value that the audio content is repeatedly played before the skip operation is performed for the first time. For example, before the skip operation is performed for the first time, if an audio content is repeatedly played once (after the audio content is played, the user plays it one more time, that is, the user plays it two more times at a time), the continuity value of the repeated playing performed before the skip operation is performed for the first time is 0.2, if the audio content is repeatedly played twice in succession (that is, the user plays it three times at a time, or plays it two more times at a first time, plays other audio files, and then plays it two more times at a second time of playing the audio content in sequence), the continuity value of the repeated playing performed before the skip operation is performed for the first time is 0.2+0.2 × 2, if the audio content is repeatedly played three times in succession (that is, the user plays it four times at a time, or it is played twice in succession for the first time, then played twice in succession when the audio content is played in order for the second time, then played again in succession when the audio content is played again, then played again with other audio files, and finally played again in succession when the audio content is played in order for the third time), then the continuity value with which it is played repeatedly before the skip operation is performed for the first time is 0.2+0.2 × 2 × 2, and so on. For example, it is calculated that if a value of the variable a and a value of the variable B for a certain audio content are 0.5 and 0.6, respectively, then the user's future favorable recovery for the audio content =0.5+0.6= 1.1.
The "continuity of the repeated playing being performed within the set time limit" may be understood as the non-intermittency of the repeated playing of the audio content being performed. For example, if an audio content is repeatedly played once within a set time limit (after the audio content is played, the user plays the audio content once again, that is, the user plays the audio content twice at once), the continuity value of the repeated playing performed within the set time limit is 0.2, if the audio content is repeatedly played twice consecutively (that is, the user plays the audio content three times at once, or plays the audio content twice at the first time and then plays another audio file, and then plays the audio content twice at the second time), the continuity value of the repeated playing performed within the set time limit is 0.2+0.2 × 2, if the audio content is repeatedly played three times consecutively (that is, the user plays the audio content four times at once, or plays another audio file after playing twice at the first time), then the audio content is played twice continuously when played in sequence for the second time, then other audio file is played again, and finally the audio content is played twice continuously when played in sequence for the third time), then the continuity value of being played repeatedly in the set time limit range is 0.2+0.2 × 2 × 2, and so on. As for the "user's current interest level in the audio content", it may be defined as twice the value of the continuity of the repeated playing of the audio content performed within the set time limit range, that is, the user's current interest level in the audio content = the value of the continuity of the repeated playing of the audio content performed within the set time limit range × 2.
The "user-future degree of impairment of the audio content" may be defined as the sum of the variable C value and the variable D value. Namely, the user's future hedonic decay degree for the audio content = variable C-value-variable D-value, where variable C-value = total number of times that the audio content has been repeatedly played until now/total number of times that the audio content has been repeatedly played after the skip operation is performed for the first time, and variable D-value is a continuity value that the audio content has been repeatedly played after the skip operation is performed for the first time. For example, after the skip operation is performed for the first time, if an audio content is repeatedly played once (after the audio content is completely played, the user plays it one more time, that is, the user plays it two more times at a time), the continuity value of the repeated playing performed after the skip operation is performed for the first time is 0.2, if the audio content is repeatedly played twice in succession (that is, the user plays it three times at a time, or plays it two more times at a first time, plays other audio files, and then plays it two more times at a second time of playing the audio content in sequence), the continuity value of the repeated playing performed after the skip operation is performed for the first time is 0.2+0.2 × 2, if the audio content is repeatedly played three times in succession (that is, the user plays it four times at a time, or it is played twice in succession for the first time, then played twice in succession when the audio content is played in order for the second time, then played again in succession when the audio content is played again, then played again with other audio files, and finally played again in succession when the audio content is played in order for the third time), then its continuity value that is repeatedly played after the skip operation is performed for the first time is 0.2+0.2 × 2 × 2, and so on. For example, it is calculated that if a value of the variable a and a value of the variable B for a certain audio content are 2 and 0.6, respectively, then the user's future hedonic attenuation for the audio content =2-0.6= 1.4.
And then, updating the audio content in the corresponding vehicle-mounted intelligent USB flash disk according to the result of the comprehensive analysis in the following way: 1. if the current aversion degree of the user to the audio content is larger than or equal to the set threshold value of the aversion degree (all the threshold values can be set according to actual conditions), or the current aversion degree of the user to the audio content is smaller than the set threshold value of the aversion degree but the future favorable restoration degree of the user to the audio content is smaller than the set threshold value of the favorable restoration degree, or the current favorable restoration degree of the user to the audio content is smaller than the set threshold value of the favorable restoration degree and the future favorable attenuation degree of the user to the audio content is larger than the set threshold value of the favorable attenuation degree, the audio content is deleted. 2. And if the current good sensibility of the user to the audio content is greater than the set threshold value of the good sensibility, the audio content is reserved. 3. If the current aversion degree of the user to the audio content is smaller than the set threshold value of the aversion degree and the future favorable restoration degree of the user to the audio content is larger than or equal to the set threshold value of the favorable restoration degree, or the current favorable degree of the user to the audio content is smaller than the set threshold value of the favorable degree but the future favorable attenuation degree of the user to the audio content is smaller than or equal to the set threshold value of the favorable attenuation degree, the corresponding audio content is locked so that the audio content cannot be played in the set favorable restoration period and is unlocked after the favorable restoration expires. 4. And the remote data center pushes the audio content with similar characteristic information to the audio content to the vehicle-mounted intelligent USB flash disk according to the characteristic information of the audio content reserved at the current time, and stores the pushed audio content to the vehicle-mounted intelligent USB flash disk.
Finally, the invention also relates to an audio content distribution system based on network service, which comprises a remote data center positioned at the cloud end and a plurality of vehicle-mounted intelligent USB disks positioned at a user end, wherein as mentioned above, the vehicle-mounted intelligent USB disks are connected with the remote data center through a wireless local area network or a mobile communication network, and the audio content distribution system performs data interaction between the remote data center and the vehicle-mounted intelligent USB disks according to the audio content distribution method.
The audio content distribution system becomes an intermediate carrier (or bridge) between the vehicle-mounted system and the remote data center by embedding the communication module in the vehicle-mounted USB flash disk, high-quality audio data stored in the intermediate carrier can be rapidly transmitted to the vehicle-mounted system without being influenced by the signal strength of an external mobile communication network, meanwhile, the remote data center can accurately update the audio content in the intermediate carrier based on the playing record data generated in the vehicle driving process without manual operation, thereby greatly improving the user experience, facilitating the enlargement of the scale of the terminal user and realizing the large-scale operation, and a large number of terminals (namely vehicle-mounted intelligent flash disks) which rely on the remote data center to distribute the content can greatly reduce the upstream copyright charge apportionment cost and the operation cost in turn, thereby forming virtuous circle and ensuring the operation benefit.
The above embodiments are preferred implementations of the present invention, and the present invention can be implemented in other ways without departing from the spirit of the present invention.
Some of the drawings and descriptions of the present invention have been simplified to facilitate the understanding of the improvements over the prior art by those skilled in the art, and some other elements have been omitted from this document for the sake of clarity, and it should be appreciated by those skilled in the art that such omitted elements may also constitute the subject matter of the present invention.
Claims (10)
1. On-vehicle intelligent USB flash disk, its characterized in that: the USB flash disk comprises a random access memory, a read-only memory, an external data memory, an I/O interface, a central processing unit and a communication module, wherein the random access memory, the read-only memory, the external data memory and the I/O interface are all connected with the central processing unit through an address bus, a data bus and a control bus, the I/O interface is externally connected with a USB interface, and the USB interface is used for being connected with a vehicle machine to transmit data and accessing a power supply from the vehicle machine to supply power to each part in the USB flash disk;
the central processing unit is used for processing and processing data, the random access memory is used for temporarily storing data, the read-only memory is stored with a USB flash disk control and data processing program, the external data memory is stored with audio content and playing record data of each recent audio content generated by processing and processing of the central processing unit, and the communication module is used for connecting a remote data center to realize information interaction between the USB flash disk and the remote data center, so that the remote data center can delete and update the audio content in the USB flash disk according to the playing record data;
the communication module comprises a downlink communication link for realizing data transmission from the remote data center to the USB flash disk and an uplink communication link for realizing data transmission from the USB flash disk to the remote data center; the uplink communication link and the downlink communication link share an antenna, a circulator and a digital signal processing module, the circulator is connected with the antenna, and the digital signal processing module is connected with an I/O interface; the downlink communication link comprises an amplifier 1, a band-pass filter 1, a frequency mixer, a low-pass filter and an analog-to-digital converter which are connected in sequence, the frequency mixer is also connected with an oscillator, the input end of the amplifier 1 is connected with a circulator, and the analog-to-digital converter is connected with a digital signal processing module; the uplink communication link comprises a low-pass filter 2, a modulator, a band-pass filter 2 and an amplifier 2 which are sequentially connected, the amplifier 2 is connected with the circulator, and the low-pass filter 2 is connected with the digital signal processing module.
2. The vehicle-mounted intelligent flash disk according to claim 1, wherein: the vehicle-mounted audio content monitoring system further comprises a positioning module connected with the central processing unit, and the positioning module is used for sending positioning data to the central processing unit, so that the central processing unit can judge the motion state of the corresponding vehicle according to the change of the positioning data and only generate the record data of each audio content played in the driving process of the vehicle.
3. The vehicle-mounted intelligent flash disk according to claim 2, wherein: the battery is a rechargeable battery, and the battery is connected with the USB interface and is charged by an external power supply of the USB interface.
4. The vehicle-mounted intelligent flash disk according to claim 2 or 3, wherein: the USB interface power supply device also comprises a first switch for controlling the on-off of a circuit for supplying power to the random access memory, the read-only memory, the external data memory, the central processing unit and the communication module by the battery and a second switch for controlling the on-off of a circuit for supplying power to the communication module by the USB interface.
5. The audio content distribution method based on the network service is characterized in that:
recording the condition that audio content is played during the running process of a vehicle through the vehicle-mounted intelligent USB flash disk of any one of claims 2 to 4 to form playing record data;
after the communication connection between the vehicle-mounted intelligent USB flash disk and the remote data center is established, new playing record data are obtained from the vehicle-mounted intelligent USB flash disk through the remote data center and are comprehensively analyzed with historical playing record data stored in the remote data center, and audio content in the corresponding vehicle-mounted intelligent USB flash disk is updated according to comprehensive analysis results.
6. The network service-based audio content distribution method according to claim 5, wherein the playing the recorded data includes:
the characteristic information of the audio content which is executed skipping in the audio playing process, the corresponding time point when the corresponding audio content is executed skipping and the number of times of executing skipping;
the characteristic information of the audio content repeatedly played in the audio playing process, the corresponding time point when the corresponding audio content is executed with the repeated playing operation and the repeated playing times thereof.
7. The audio contents distribution method based on network service according to claim 6, wherein when analyzing the playback record data comprehensively: firstly, counting the total times of repeated playing and skipping of corresponding audio contents in a set time limit range and comparing the total times of repeated playing and skipping;
if the total times of the executed skipping operation is larger than the total times of the executed repeated playing, further analyzing the continuity of the audio content for the skipping executed in the set time limit range to obtain the current dislike degree of the user for the audio content, and if the current dislike degree of the user for the audio content is smaller than the preset threshold value of the dislike degree, obtaining the future favorable recovery degree of the user for the audio content according to the total times of the audio content for the repeated playing up to now, the total times and the continuity of the audio content for the repeated playing executed before the skipping operation is executed for the first time;
if the total times of the skipping operation is smaller than or equal to the total times of the repeated playing, further analyzing the continuity of the repeated playing of the audio content in the set time limit range to obtain the current good feeling of the user to the audio content, and if the current good feeling of the user to the audio content is smaller than a good feeling threshold value, obtaining the good feeling attenuation degree of the user to the audio content in the future according to the total times and the continuity of the repeated playing of the audio content after the skipping operation is performed for the first time and the total times of the repeated playing of the audio content until now.
8. The audio content distribution method based on network service according to claim 7, wherein when the audio content in the corresponding vehicle-mounted intelligent flash disk is updated according to the comprehensive analysis result:
if the current aversion degree of the user to the audio content is larger than or equal to the set threshold value of the aversion degree, or the current aversion degree of the user to the audio content is smaller than the set threshold value of the aversion degree but the future favorable restoration degree of the user to the audio content is smaller than the set threshold value of the favorable restoration degree, or the current favorable restoration degree of the user to the audio content is smaller than the set threshold value of the favorable restoration degree and the future favorable attenuation degree of the user to the audio content is larger than the set threshold value of the favorable attenuation degree, deleting the audio content;
if the current good sensibility of the user to the audio content is larger than a set threshold value of the good sensibility, the audio content is reserved;
if the current aversion degree of the user to the audio content is smaller than the set threshold value of the aversion degree and the future favorable restoration degree of the user to the audio content is larger than or equal to the set threshold value of the favorable restoration degree, or the current favorable degree of the user to the audio content is smaller than the set threshold value of the favorable degree but the future favorable attenuation degree of the user to the audio content is smaller than or equal to the set threshold value of the favorable attenuation degree, the corresponding audio content is locked so that the audio content cannot be played in the set favorable restoration period and is unlocked after the favorable restoration expires.
9. The audio content distribution method based on network service according to claim 8, wherein when the audio content in the corresponding vehicle-mounted intelligent flash disk is updated according to the comprehensive analysis result, the method further comprises: and the remote data center pushes the audio content with similar characteristic information to the audio content to the vehicle-mounted intelligent USB flash disk according to the characteristic information of the audio content reserved at the current time, and stores the pushed audio content to the vehicle-mounted intelligent USB flash disk.
10. An audio content distribution system based on a web service, characterized in that: the system comprises a remote data center located at the cloud end and a plurality of vehicle-mounted intelligent USB flash disks located at the user end and according to any one of claims 2 to 4, wherein the vehicle-mounted intelligent USB flash disks are connected with the remote data center through a wireless local area network or a mobile communication network and perform data interaction according to the method of any one of claims 5 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110253190.8A CN112802502B (en) | 2021-03-09 | 2021-03-09 | Vehicle-mounted intelligent USB flash disk and audio content distribution method and system based on network service |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110253190.8A CN112802502B (en) | 2021-03-09 | 2021-03-09 | Vehicle-mounted intelligent USB flash disk and audio content distribution method and system based on network service |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112802502A true CN112802502A (en) | 2021-05-14 |
| CN112802502B CN112802502B (en) | 2022-04-08 |
Family
ID=75816608
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110253190.8A Active CN112802502B (en) | 2021-03-09 | 2021-03-09 | Vehicle-mounted intelligent USB flash disk and audio content distribution method and system based on network service |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112802502B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115632731A (en) * | 2022-10-26 | 2023-01-20 | 广州市保伦电子有限公司 | Synchronous playing strategy for multi-playing terminal |
Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20010002672A (en) * | 1999-06-16 | 2001-01-15 | 윤장진 | Car audio/visual system |
| US20080161951A1 (en) * | 2007-01-03 | 2008-07-03 | Morris Jeffrey M | Portable memory device with dynamically loaded audio content |
| CN101232294A (en) * | 2007-01-25 | 2008-07-30 | 乐金电子（昆山）电脑有限公司 | Remote information processing terminal machine and method for updating audio firmware thereon |
| CN201226239Y (en) * | 2007-11-23 | 2009-04-22 | 王长远 | Vehicle-mounted player |
| EP2506132A2 (en) * | 2005-09-28 | 2012-10-03 | Access Co., Ltd. | Terminal device and program |
| CN102843319A (en) * | 2011-06-22 | 2012-12-26 | 立积电子股份有限公司 | Communication system |
| CN103593635A (en) * | 2013-11-12 | 2014-02-19 | 刘海东 | Wireless card reading method of Bluetooth card plug-in sound box |
| CN104915309A (en) * | 2015-06-29 | 2015-09-16 | 深圳市江波龙电子有限公司 | USB device and vehicle-mounted system |
| US20160209933A1 (en) * | 2015-01-15 | 2016-07-21 | Hisense Electric Co., Ltd. | Method and device for adjusting function of control button, and smart terminal |
| CN205722791U (en) * | 2016-06-14 | 2016-11-23 | 广州亚美信息科技有限公司 | A kind of vehicle-mounted music USB flash disk being wirelessly transferred based on WiFi |
| CN107564553A (en) * | 2016-06-30 | 2018-01-09 | 上海博泰悦臻网络技术服务有限公司 | A kind of control method of audio playlist, system and a kind of audio frequency broadcast system |
| CN108711439A (en) * | 2018-03-30 | 2018-10-26 | 斑马网络技术有限公司 | Vehicle-mounted music play system, vehicle and its playback method |
| CN110333682A (en) * | 2019-07-18 | 2019-10-15 | 乐播新瑞(北京)文化传媒有限公司 | A kind of remote automation audio frequency control central control system and its audio play control method |
| CN110413833A (en) * | 2019-07-18 | 2019-11-05 | 乐播新瑞(北京)文化传媒有限公司 | A kind of audio-frequence player device and its use and data-updating method |
| WO2021008481A1 (en) * | 2019-07-18 | 2021-01-21 | 乐播新瑞(北京)文化传媒有限公司 | Audio playback device, central control system, and method and system for updating and playing audio |
-
2021
- 2021-03-09 CN CN202110253190.8A patent/CN112802502B/en active Active
Patent Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20010002672A (en) * | 1999-06-16 | 2001-01-15 | 윤장진 | Car audio/visual system |
| EP2506132A2 (en) * | 2005-09-28 | 2012-10-03 | Access Co., Ltd. | Terminal device and program |
| US20080161951A1 (en) * | 2007-01-03 | 2008-07-03 | Morris Jeffrey M | Portable memory device with dynamically loaded audio content |
| CN101232294A (en) * | 2007-01-25 | 2008-07-30 | 乐金电子（昆山）电脑有限公司 | Remote information processing terminal machine and method for updating audio firmware thereon |
| CN201226239Y (en) * | 2007-11-23 | 2009-04-22 | 王长远 | Vehicle-mounted player |
| CN102843319A (en) * | 2011-06-22 | 2012-12-26 | 立积电子股份有限公司 | Communication system |
| CN103593635A (en) * | 2013-11-12 | 2014-02-19 | 刘海东 | Wireless card reading method of Bluetooth card plug-in sound box |
| US20160209933A1 (en) * | 2015-01-15 | 2016-07-21 | Hisense Electric Co., Ltd. | Method and device for adjusting function of control button, and smart terminal |
| CN104915309A (en) * | 2015-06-29 | 2015-09-16 | 深圳市江波龙电子有限公司 | USB device and vehicle-mounted system |
| CN205722791U (en) * | 2016-06-14 | 2016-11-23 | 广州亚美信息科技有限公司 | A kind of vehicle-mounted music USB flash disk being wirelessly transferred based on WiFi |
| CN107564553A (en) * | 2016-06-30 | 2018-01-09 | 上海博泰悦臻网络技术服务有限公司 | A kind of control method of audio playlist, system and a kind of audio frequency broadcast system |
| CN108711439A (en) * | 2018-03-30 | 2018-10-26 | 斑马网络技术有限公司 | Vehicle-mounted music play system, vehicle and its playback method |
| CN110333682A (en) * | 2019-07-18 | 2019-10-15 | 乐播新瑞(北京)文化传媒有限公司 | A kind of remote automation audio frequency control central control system and its audio play control method |
| CN110413833A (en) * | 2019-07-18 | 2019-11-05 | 乐播新瑞(北京)文化传媒有限公司 | A kind of audio-frequence player device and its use and data-updating method |
| WO2021008481A1 (en) * | 2019-07-18 | 2021-01-21 | 乐播新瑞(北京)文化传媒有限公司 | Audio playback device, central control system, and method and system for updating and playing audio |
Non-Patent Citations (1)
| Title |
|---|
| 刘俊等: "基于Unity3D&HTCvive的工业机器人虚拟现实编程教学仿真***的研究与开发", 《轻工科技》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115632731A (en) * | 2022-10-26 | 2023-01-20 | 广州市保伦电子有限公司 | Synchronous playing strategy for multi-playing terminal |
| CN115632731B (en) * | 2022-10-26 | 2023-10-13 | 广东保伦电子股份有限公司 | Synchronous playing strategy for multi-playing terminal |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112802502B (en) | 2022-04-08 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| DE69934156T2 (en) | Recording and reproducing apparatus and method | |
| US7496327B2 (en) | Music information, updating system, music information broadcasting apparatus, terminal apparatus having music information updating function, music information updating method, music information broadcasting method, and music information updating method of terminal apparatus | |
| CN1873811B (en) | Data recording and/or reproducing apparatus and method, data transfer system and method | |
| US6570079B2 (en) | Recording and reproducing apparatus, recording and reproducing method, and data processing apparatus | |
| CN1855830B (en) | Method and system for monitoring and retrieving device usage | |
| DE60122403T2 (en) | Method for controlling and synchronizing the power supply in a system of electronic devices | |
| US20060004948A1 (en) | Embedded hard drive infotainment system | |
| JPH0468637B2 (en) | ||
| EP2192693B1 (en) | Information and entertainment system in a vehicle | |
| JPS58116823A (en) | Recording information remote distance distributing method and system for performing same method | |
| CN112802502B (en) | Vehicle-mounted intelligent USB flash disk and audio content distribution method and system based on network service | |
| CN210007874U (en) | sound system applied to automobile and automobile | |
| US20050009466A1 (en) | Mobile play-list method | |
| CN102486926A (en) | Method and system for acquiring personalized music media information | |
| US20010042111A1 (en) | Contents distribution system, requesting device, providing device, recording medium, information aggregate and media | |
| DE112020000437T5 (en) | A microphone that functions as either a digital wireless microphone or a wired passive microphone | |
| KR101494479B1 (en) | System and method for preserving the integrity of segments of audio streams | |
| JP4515176B2 (en) | TV broadcast receiving system | |
| JP4024984B2 (en) | In-vehicle audio system | |
| CN105047211B (en) | A kind of onboard audio playback method and car-mounted terminal | |
| US7937055B2 (en) | Timeshifting for a multiple-tuner vehicle radio system | |
| CN108075850A (en) | The control method and device of vehicle-mounted broadcasting | |
| CN201689679U (en) | Vehicle-mounted music player | |
| CN109817231A (en) | Sound processing apparatus and sound processing method | |
| JP2006293816A (en) | Content providing system and onboard terminal device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |