WO2017185323A1 - Control method and control apparatus - Google Patents

Control method and control apparatus Download PDF

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Publication number
WO2017185323A1
WO2017185323A1 PCT/CN2016/080634 CN2016080634W WO2017185323A1 WO 2017185323 A1 WO2017185323 A1 WO 2017185323A1 CN 2016080634 W CN2016080634 W CN 2016080634W WO 2017185323 A1 WO2017185323 A1 WO 2017185323A1
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WO
WIPO (PCT)
Prior art keywords
video
vehicle
electronic device
new
route
Prior art date
Application number
PCT/CN2016/080634
Other languages
English (en)
French (fr)
Inventor
Muchen WANG
Original Assignee
Volkswagen (China) Investment Co., Ltd.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Volkswagen (China) Investment Co., Ltd. filed Critical Volkswagen (China) Investment Co., Ltd.
Priority to CN201680083043.8A priority Critical patent/CN108781309B/zh
Priority to PCT/CN2016/080634 priority patent/WO2017185323A1/en
Publication of WO2017185323A1 publication Critical patent/WO2017185323A1/en

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/41—Structure of client; Structure of client peripherals
    • H04N21/414—Specialised client platforms, e.g. receiver in car or embedded in a mobile appliance
    • H04N21/41422—Specialised client platforms, e.g. receiver in car or embedded in a mobile appliance located in transportation means, e.g. personal vehicle
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
    • H04N21/436—Interfacing a local distribution network, e.g. communicating with another STB or one or more peripheral devices inside the home
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
    • H04N21/438—Interfacing the downstream path of the transmission network originating from a server, e.g. retrieving encoded video stream packets from an IP network

Definitions

  • the present invention relates to a control method and a control apparatus.
  • the present invention relates to a control method and a control apparatus for playing video during vehicle travel period.
  • a user may download a video from a content server via the wireless communication technologies and play the downloaded video via an electronic device of the user (e.g., a smart phone, a tablet, a laptop and the like ) when the user is in a moving vehicle.
  • an electronic device of the user e.g., a smart phone, a tablet, a laptop and the like
  • the solution tries to provide a video with too much volume to the user so that the user cannot download the whole video to watch before the vehicle arrives at the destination, which influences the user’s experience for watching a video.
  • embodiments of the present invention provide a control method and a control apparatus, by which a user in a moving vehicle can download and watch a whole video before the vehicle arrives at the destination.
  • Embodiments of the present invention provides a control method, comprising: generating, in response to a video play request from a user of an electronic device, a list of video names based on route information that indicates a required vehicle travel time and a permitted data transmission rate of a particular route on which a vehicle is to travel, wherein all video contents of a video corresponding to each video name in the list of video names can be transmitted to the electronic device from a content server and played by the electronic device before the vehicle arrives at a destination of the particular route.
  • Embodiments of the present invention provides a control method, comprising: generating, based on a length, a vehicle travel speed and a permitted data transmission rate of each of links in a road network, route information that indicates a required vehicle travel time and a permitted data transmission rate of a particular route on which a vehicle is to travel; and transmitting the route information to a main unit of the vehicle.
  • Embodiments of the present invention provides a control method, comprising: transmitting, when a user wants to watch a video in a vehicle through an electronic device, to a content server a video play request including route information received from a main unit of the vehicle, wherein the route information indicates a required vehicle travel time and a permitted data transmission rate of a particular route on which the vehicle is to travel; presenting, on the electronic device, a list of video names received from the content server; transmitting to the content server a video name selected by the user from the list of video names; buffering, when receiving video contents of a particular video corresponding to the selected video name from the content server, the received video contents of the particular video in the electronic device; and playing the buffered video contents of the particular video on the electronic device.
  • Embodiments of the present invention provides a control apparatus, comprising: a generating module for generating, in response to a video play request from a user of an electronic device, a list of video names based on route information that indicates a required vehicle travel time and a permitted data transmission rate of a particular route on which a vehicle is to travel, wherein all video contents of a video corresponding to each video name in the list of video names can be transmitted to the electronic device from a content server and played by the electronic device before the vehicle arrives at a destination of the particular route.
  • Embodiments of the present invention provides a control apparatus, comprising: a generating module for generating, based on a length, a vehicle travel speed and a permitted data transmission rate of each of links in a road network, route information that indicates a required vehicle travel time and a permitted data transmission rate of a particular route on which a vehicle is to travel; and a transmitting module for transmitting the route information to a main unit of the vehicle.
  • Embodiments of the present invention provides a control apparatus, comprising: a sending module for transmitting, when a user wants to watch a video in a vehicle through an electronic device, to a content server a video play request including route information received from a main unit of the vehicle, wherein the route information indicates a required vehicle travel time and a permitted data transmission rate of a particular route on which the vehicle is to travel; a presenting module for presenting, on the electronic device, a list of video names received from the content server; a transmitting module for transmitting to the content server a video name selected by the user from the list of video names; a buffering module for buffering, when receiving video contents of a particular video corresponding to the selected video name from the content server, the received video contents of the particular video in the electronic device; and a playing module for playing the buffered video contents of the particular video on the electronic device.
  • the user in the vehicle is provided only the video whose all video contents can be transmitted to the electronic device and played by the electronic device before the vehicle arrives at the destination, so compared to the prior art, the above embodiments of the present invention can enable the user to download and watch a whole video before the vehicle arrives at the destination.
  • Fig. 1 illustrates an architecture diagram of a control system according to an embodiment of the present invention
  • FIGs. 2A and 2B illustrate a flowchart of a control method according to an embodiment of the present invention
  • Fig. 3 illustrates a schematic diagram of control apparatus according to a first embodiment of the present invention
  • Fig. 4 illustrates a schematic diagram of control apparatus according to a second embodiment of the present invention
  • Fig. 5 illustrates a schematic diagram of control apparatus according to a third embodiment of the present invention.
  • Fig. 6 illustrates a schematic diagram of a content server according to an embodiment of the present invention
  • Fig. 7 illustrates a schematic diagram of a route information server according to an embodiment of the present invention.
  • Fig. 8 illustrates a schematic diagram of an electronic device according to an embodiment of the present invention.
  • Fig. 1 illustrates an architecture diagram of a control system according to an embodiment of the present invention.
  • the control system 10 may include an electronic device 20, a main unit 30, a route information server 40 and a content server 50.
  • the electronic device 20 may communicate with the main unit 30 via a short distance wireless communication technology (e.g., a wireless local area network (WLAN) technology, a Bluetooth communication technology, WiFi or the like) .
  • the main unit 30 may communicate with the route information server 40 and the content server 50 via a mobile communication technology.
  • WLAN wireless local area network
  • WiFi WiFi
  • the electronic device 20 may be a smart phone, a tablet, a laptop or the like.
  • the main unit 30 is located in a vehicle TT and has a navigation function.
  • the main unit 30 may be a navigation apparatus installed in the vehicle TT.
  • the route information server 40 may collect and store information on each of links in a road network, wherein the information may include a length, a vehicle travel speed, a permitted data transmission rate and a road level of each of the links in the road network.
  • the vehicle travel speed of each link L1 may indicate an average vehicle speed that vehicles travel on the link L1.
  • the permitted data transmission rate of the link L1 may indicate a maximum data transmission rate that the mobile communication system can provide within the range of the link L1.
  • the road level of the link L1 may a highway, a secondary road, a tertiary road and so on, wherein a road condition will become worse when the road level of the link changes from the highway to the tertiary road.
  • the vehicle travel speed and the permitted data transmission rate of each of the links in the road network may be obtained through any suitable manners.
  • roadside devices may be positioned in the road network to detect vehicle travel speeds of vehicles.
  • the vehicle travel speed may be an average value of the collected vehicle travel speeds of vehicles travelling on each of the links in the road network.
  • the roadside devices may also obtain the permitted data transmission rate by detecting the maximum data transmission rate that the mobile communication system can provide within the range of each of the links in the road network.
  • the permitted data transmission rate may also be obtained from operators of the mobile communication system.
  • the content server 50 may store videos and provide a video to the electronic device 20 in response to a request for downloading a video from the electronic device 20.
  • Figs. 2A and 2B illustrate a flowchart of a control method according to an embodiment of the present invention.
  • a user U1 with the electronic device 20 sits in the vehicle TT and prepares to travel to a destination D1 via the vehicle TT.
  • the electronic device 20 may establish connection with the main unit 30 of the vehicle TT by any wire or wireless communication technology.
  • a route RT from a starting point D2 to the destination D1 is generated by the route information server 40 in response to a request from the main unit 30, wherein the starting point D2 and the destination D1 is received by the route information server 40 from the main unit 30.
  • How to generate a route from a starting point to a destination is known to those skilled in the art and thus description of generating of the route RT from the starting point D2 to the destination D1 is omitted herein.
  • the route information server 40 may generate route information RI based on the stored information on each of the links in the road network.
  • the route information RI indicates the required vehicle travel time and the permitted data transmission rate of the route RT.
  • the route information RI may include the length, the vehicle travel speed, the permitted data transmission rate and the road level of each of links constituting the route RT.
  • the route information server 40 may transmit the route RT and the route information RI to the main unit 30 of the vehicle TT.
  • the main unit 30 of the vehicle TT may transmit the route information RI to the electronic device 20.
  • the electronic device 20 may store the route information RI received from the main unit 30 of the vehicle TT.
  • the electronic device 20 may transmit, when the user U1 wants to watch a video in the vehicle TT, a video play request including the route information RI and information on a maximum buffer size of the electronic device 20 to the content server 50 via the main unit 30 of the vehicle TT.
  • the content server 50 may generate a list of video names based on the route information RI included in the video play request, wherein all video contents of a video corresponding to each video name in the list of video names can be transmitted to the electronic device 20 and played by the electronic device 20 before the vehicle TT arrives at the destination D1 of the route RT.
  • the content server 50 may calculate a required vehicle travel time of each of the links constituting the route RT based on the length and the vehicle travel speed of each of the links constituting the route RT, calculate a sum of the required vehicle travel time of each of the links constituting the route RT as a required vehicle travel time of the route RT, calculate downloadable data volume of each of the links constituting the route RT by multiplying the required vehicle travel time of each of the links by the permitted data transmission rate of each of the links, and calculate a sum of the downloadable data volume of each of the links constituting the route RT as maximum downloadable data volume of the route RT.
  • the content server 50 may search, from video stored in the content server 50, videos whose time length is less than or equal to the required vehicle travel time of the route RT and whose data volume is less than or equal to the maximum downloadable data volume of the route RT, and use names of the searched videos to form the list of video names.
  • the content server 50 may transmit the list of video names to the electronic device 20 via the main unit 30 of the vehicle TT.
  • the electronic device 20 may present the list of video names from the content server 50 so that the user U1 selects a video that the user U1 wants to watch.
  • the electronic device 20 may transmit, to the content server 50, a video name VN corresponding to a video PV selected by the user U1.
  • the content server 50 may determine a data transfer strategy of the video PV corresponding to the video name VN based on the road level, the required vehicle travel time, the permitted data transmission rate of each of the links constituting the route RT, video bit rate of the video PV and a maximum buffer size of the electronic device 20.
  • the data transfer strategy of the video PV indicates actual data transmission rate of each time t for transmitting the video PV, which is less than or equal to the permitted data transmission rate of the time t,.
  • the data transfer strategy of the video PV will enable that not only all video contents of the video PV can be transmitted to the electronic device 20 and played by the electronic device 20 before the vehicle TT arrives at the destination D1 of the route RT, but also total volume of transmitted video contents of the video PV in any time is less than or equal to a sum of the maximum buffer size of the electronic device 20 and total volume of played video contents of the video PV in that time.
  • the data transfer strategy of the video PV may be determined by using the following equation (1) .
  • T is the required vehicle travel time of the route RT, which is a sum of the required vehicle travel time of each of the links constituting the route RT.
  • I (t) is the data transfer strategy of the video PV.
  • S (t) is a play switch function that is 0 or 1, wherein S (t) is determined based on the required vehicle travel time and the road level of each of the links constituting the route RT, that is, S (t) is 0 when the vehicle TT is travelling at the time t on a certain link of the route RT whose road level indicates that road condition of the certain link will influence video watching experience (e.g., the certain link is a bumpy road or the like) , and S (t) is 1 when the road condition of the certain link will not influence video watching experience.
  • S (t) is 1 when the road condition of the certain link will not influence video watching experience.
  • R (t) is video bit rate of the video PV.
  • B (t) is total volume of video contents of the video PV that have been transmitted to the electronic device 20 and are not played by the electronic device 20, and B (t) is less than or equal to the maximum buffer size of the electronic device 20.
  • the content server 50 may transmit, based on the data transfer strategy of the video PV, video contents of the video PV to the electronic device 20 via the main unit 30 of the vehicle TT.
  • the electronic device 20 may buffer the received video contents of the video PV, that is, store the received video contents of the video PV in a buffer of the electronic device 20.
  • the electronic device 20 may play the video contents of the video PV stored in the buffer of the electronic device 20.
  • the main unit 30 of the vehicle TT may obtain a current location of the vehicle TT continually at a predefined time interval.
  • the main unit 30 of the vehicle TT may transmit the obtained current location of the vehicle TT to the route information server 40.
  • the main unit 30 of the vehicle TT may detect based on the current location of the vehicle TT whether the vehicle TT is travelling on the route RT.
  • the main unit 30 of the vehicle TT may transmit, to the route information server 40, the destination D1 and the obtained current location of the vehicle TT as the starting point D22 to request to search a new route from the starting point D22 to the destination D1, if it is detected that the vehicle TT is not travelling on the route RT.
  • the route information server 40 may generate a new route RT2 from the starting point D22 to the destination D1.
  • the route information server 40 may generate new route information RI2 of the new route RT2 using the same method as mentioned above.
  • the new route information RI2 may include the length, the vehicle travel speed, the permitted data transmission rate and the road level of each of links constituting the new route RT2.
  • the route information server 40 may transmit the new route RT2 and the new route information RI2 to the main unit 30 of the vehicle TT.
  • the main unit 30 of the vehicle TT may transmit the new route information RI2 to the electronic device 20.
  • the electronic device 20 may transmit the new route information RI2 to the content server 50 via the main unit 30 of the vehicle TT.
  • the content server 50 may judge whether remained video contents of the video PV can be transmitted to the electronic device 20 and played by the electronic device 20 before the vehicle TT arrives at the destination D1 of the new route RT2 based on the new route information RI2.
  • the remained video contents of the video PV are contents of the video PV that have not been yet transmitted to the electronic device 20.
  • the content server 50 may calculate a required vehicle travel time of each of the links constituting the new route RT2 based on the length and the vehicle travel speed of each of the links constituting the new route RT2.
  • the content server 50 may calculate a sum of the required vehicle travel time of each of the links constituting the new route RT as a required vehicle travel time of the new route RT.
  • the content server 50 may calculate downloadable data volume of each of the links constituting the new route RT2 by multiplying the required vehicle travel time of each of the links constituting the new route RT2 by the permitted data transmission rate of each of the links constituting the new route RT2.
  • the content server 50 may calculate a sum of the downloadable data volume of each of the links constituting the new route RT as maximum downloadable data volume of the new route RT.
  • the content server 50 may judge whether total volume of the remained video contents of the video PV is not larger than the maximum downloadable data volume of the new route RT and a time length of the remained video contents of the video PV is not larger than the required vehicle travel time of the new route RT. If the judgment is negative, it is determined that the remained video contents of the video PV cannot be transmitted to the electronic device 20 and played by the electronic device 20 before the vehicle TT arrives at the destination D1 of the new route RT2.
  • the content server 50 may generate a first new list of video names, wherein all video contents of a video corresponding to each video name in the first new list of video names can be transmitted to the electronic device 20 and played by the electronic device 20 before the vehicle TT arrives at the destination D1 of the new route RT2.
  • the content server 50 may transmit, to the electronic device 20 via the main unit 30 of the vehicle TT, the first new list of video names and a message that indicates transmission and playing of the video PV cannot be finished before the vehicle TT arrives at the destination D1 of the new route RT2.
  • the electronic device 20 may present the received message.
  • step S268 if the user U1 of the electronic device 20 does not intend to continue the video PV and wants to select a new video for watching, the electronic device 20 may present the received first new list of video names so that the user U1 may select a new video name corresponding to a new video he/she wants to watch.
  • the electronic device 20 may transmit the new video name NN to the content server 50 via the main unit 30 of the vehicle TT.
  • the content server 50 may determine a new data transfer strategy of a new video NV corresponding to the new video name NN .
  • the determination of the new data transfer strategy is similar to the determination of the data transfer strategy described in the step S232 and thus the detailed description thereof is omitted..
  • the content server 50 may transmit, based on the new data transfer strategy of the new video NV, video contents of the new video NV to the electronic device 20 via the main unit 30 of the vehicle TT.
  • the electronic device 20 may buffer, the received video contents of the new video NV.
  • the electronic device 20 may play the video contents of the new video NV stored in the buffer of the electronic device 20.
  • the route information server 40 may detect at a predefined interval whether the vehicle travel speed or the permitted data transmission rate of any of the links constituting the route RT changes.
  • the route information server 40 may judge, based on the current location of the vehicle TT, whether the vehicle TT have travelled through the particular link PL of the route RT.
  • the route information server 40 may transmit updated information of the particular link PL of the route RT (i.e., an updated vehicle travel speed and/or an updated permitted data transmission rate of the particular link PL of the route RT) and the current location of the vehicle TT to the main unit 30 of the vehicle TT.
  • updated information of the particular link PL of the route RT i.e., an updated vehicle travel speed and/or an updated permitted data transmission rate of the particular link PL of the route RT
  • the main unit 30 of the vehicle TT may forward the updated information of the particular link PL of the route RT and the current location of the vehicle TT to the electronic device 20.
  • the electronic device 20 may transmit the updated information of the particular link PL of the route RT and the current location of the vehicle TT to the content server 50 via the main unit 30 of the vehicle TT.
  • the content server 50 may judge, based on the updated information of the particular link PL of the route RT, the route information RI and the current location of the vehicle TT, whether remained video contents of the video PV can be transmitted to the electronic device 20 and played by the electronic device 20 before the vehicle TT arrives at the destination D1 of the route RT. Wherein the remained video contents of the video PV are video contents of the video PV that have not been transmitted to the electronic device 20.
  • the judgment of step S290 is similar to the judgment of step S260 and thus the detailed description thereof is omitted.
  • the content server 50 may generate a second new list of video names, wherein all video contents of a video corresponding to each video name in the second new list of video names can be transmitted to the electronic device 20 and played by the electronic device 20 before the vehicle TT arrives at the destination D1 of the route RT.
  • the content server 50 may transmit, to the electronic device 20 via the main unit 30 of the vehicle TT, the second new list of video names and a message that indicates transmission and playing of the video PV cannot be finished before the vehicle TT arrives at the destination D1 of the route RT.
  • the electronic device 20 may present the received message.
  • step S298 if the user U1 of the electronic device 20 does not intend to continue the video PV and wants to select a new video for watching, the electronic device 20 may present the received second new list of video names so than the user U1 may select a new video name corresponding to a new video he/she wants to watch.
  • the electronic device 20 may transmit the new video name NE to the content server 50 via the main unit 30 of the vehicle TT.
  • the content server 50 may determine a new data transfer strategy of a new video NM corresponding to the new video name NE based on the road level, the required vehicle travel time, the permitted data transmission rate of each of the non-travel links of the route RT, video bit rate of the route RT and the maximum buffer size of the electronic device 20.
  • the determination of the new data transfer strategy is similar to the determination of the data transfer strategy described in the step S232 and thus the detailed description thereof is omitted..
  • the content server 50 may transmit, based on the new data transfer strategy of the new video NM, video contents of the new video NM to the electronic device 20 via the main unit 30 of the vehicle TT.
  • the electronic device 20 may store the received video contents of the new video NM in the buffer of the electronic device 20.
  • the electronic device 20 may play the video contents of the new video NM stored in the buffer of the electronic device 20.
  • the main unit 30 of the vehicle TT may judge continually whether a link on which the vehicle TT is travelling influences that the user U1 watches a video, for example by detecting a degree of bumpiness of the link via sensors installed in the vehicle TT, or by detecting based on the road level of the link whether the link is a bumpy road.
  • the road level of the link on which the vehicle TT is travelling can be obtained from the route information stored in the main unit 30 of the vehicle TT.
  • the main unit 30 of the vehicle TT may transmit to the electronic device 20 a notification for suspending playing of a video to avoid eyestrain.
  • the electronic device 20 may present the received notification for suspending playing of a video to avoid eyestrain.
  • the user U1 may cause the electronic device 20 to stop playing of the video temporary when the user U1 sees the notification presented on the electronic device 20.
  • the user in the vehicle is provided only the video whose all video contents can be transmitted to the electronic device and played by the electronic device before the vehicle arrives at the destination, so the present embodiment can enable the user to download and watch a whole video before the vehicle arrives at the destination.
  • the route RT and the new route RT are generated by the route information server 40, but the present invention is not so limited. In others embodiments of the present invention, the route RT and the new route RT may also be generated by the main unit 30 of the vehicle TT or by the electronic device 20.
  • the required vehicle travel time of the route RT, the downloadable data volume and the list of video names are calculated and provided by the content server 50, but the present invention is not so limited. In others embodiments of the present invention, these can be also calculated and provided by the electronic device 20 according to related information received from the route information server 40 and the content server 50, such as the video name and its data amount.
  • the electronic device 20 communicates with the content server 50 via the main unit 30 of the vehicle TT, but the present invention is not so limited. In others embodiments of the present invention, the electronic device 20 may also communicate directly with the content server 50 through the mobile communication technology without via the main unit 30 of the vehicle TT.
  • the data transfer strategy is generated to control transmission of the video to the electronic device 20, but the present invention is not so limited.
  • the content server 50 may also transmit the video to the electronic device 20 without using the data transfer strategy.
  • the route information RI or RI2 may not indicate the road level of the route RT or RT2, that is, the route information RI or RI2 may not include the road level of each of the links constituting the route RT or RT2.
  • the route information RI or RI2 includes the length, the vehicle travel speed and the permitted data transmission rate of each of the links constituting the route RT or RT2 to indicate the required vehicle travel time and the permitted data transmission rate of the route RT or RT2, but the present invention is not so limited.
  • the route information RI or RI2 may include the required vehicle travel time and the permitted data transmission rate of each of the links constituting the route RT or RT2 to indicate the required vehicle travel time and the permitted data transmission rate of the route RT or RT2.
  • control method shown in Figs. 2A and 2B includes steps S244-S278, but the present invention is not so limited. In others embodiments of the present invention, the control method shown in Figs. 2A and 2B may not include steps S244-S278.
  • control method shown in Figs. 2A and 2B includes steps S280-S308, but the present invention is not so limited. In others embodiments of the present invention, the control method shown in Figs. 2A and 2B may not include steps S280-S308.
  • control method shown in Figs. 2A and 2B includes steps S310-S314, but the present invention is not so limited. In others embodiments of the present invention, the control method shown in Figs. 2A and 2B may not include steps S310-S314.
  • Fig. 3 illustrates a schematic diagram of a control apparatus according to a first embodiment of the present invention.
  • the control apparatus 700 shown in Fig. 3 may be implemented by software, hardware (e.g., an integrated circuit, a field programmable gate array (FPGA) or the like) or combination of software and hardware, and may be installed in the content server 50.
  • FPGA field programmable gate array
  • the control apparatus 700 may include a generating module 702.
  • the generating module 702 is configured for generating, in response to a video play request from a user of an electronic device, a list of video names based on route information that indicates a required vehicle travel time and a permitted data transmission rate of a particular route on which a vehicle is to travel, wherein all video contents of a video corresponding to each video name in the list of video names can be transmitted to the electronic device from a content server and played by the electronic device before the vehicle arrives at a destination of the particular route.
  • control apparatus 700 may also include a transmitting module 704.
  • the transmitting module 704 is configured for transmitting the list of video names to the electronic device.
  • the transmitting module 704 is further configured for transmitting, in response to receiving of a particular video name from the electronic device, video contents of a particular video corresponding to the particular video name to the electronic device.
  • the transmitting module 704 is further configured for transmitting, based on a data transmission strategy of the particular video, the video contents of the particular video to the electronic device, wherein the data transmission strategy indicates actual data transmission rate of each time for transmitting the particular video.
  • the route information further indicates a road level of the particular route, and wherein the data transmission strategy of the particular video is determined based on the road level, the required vehicle travel time and the permitted data transmission rate of the particular route, a maximum buffer size of the electronic device and a video bit rate of the particular video.
  • the route information includes a length, a vehicle travel speed, a permitted data transmission rate and the road level of each of links constituting the particular route, or, the route information includes a required vehicle travel time, the permitted data transmission rate and the road level of each of the links.
  • control apparatus 700 may further include: a module for receiving a new route information about a new route on which the vehicle is to travel; a module for generating a new list of video names, if it is determined based on the new route information that remained video contents of the particular video cannot be transmitted to the electronic device and played by the electronic device before the vehicle arrives at a destination of the new route, wherein all video contents of a video corresponding to each video name in the new list of video names can be transmitted to the electronic device and played by the electronic device before the vehicle arrives at the destination of the new route; and, a module for transmitting the new list of video names to the electronic device.
  • control apparatus 700 may further include: a module for receiving updated information of a particular link of the links of the particular route and a current location of the vehicle; a module for generating a new list of video names, if it is determined based on the updated information and the current location of the vehicle that non-travel links of the particular route through which the vehicle has not been yet travelled includes the particular link and remained video contents of the particular video cannot be transmitted to the electronic device and played by the electronic device before the vehicle arrives at the destination, , wherein all video contents of a video corresponding to each video name in the new list of video names can be transmitted to the electronic device and played by the electronic device before the vehicle arrives at the destination; and a module for transmitting the new list of video names to the electronic device.
  • control apparatus 700 may further include: a module for transmitting, in response to receiving of a new video name from the electronic device, video contents of a new video corresponding to the new video name to the electronic device based on a new data transmission strategy of the new video, wherein the new data transmission strategy indicates actual data transmission rate of each time for transmitting the new video.
  • Fig. 4 illustrates a schematic diagram of a control apparatus according to a second embodiment of the present invention.
  • the control apparatus 800 shown in Fig. 4 may be implemented by software, hardwareor combination of software and hardware, and may be installed in the route information server 40.
  • the control apparatus 800 may include a generating module 802 and a transmitting module 804.
  • the generating module is configured for generating, based on a length, a vehicle travel speed and a permitted data transmission rate of each of links in a road network, route information that indicates a required vehicle travel time and a permitted data transmission rate of a particular route on which a vehicle is to travel.
  • the transmitting module 804 is configured for transmitting the route information to a main unit of the vehicle.
  • the route information includes the length, the vehicle travel speed and the permitted data transmission rate of each of particular links constituting the particular route, or, the route information includes a required vehicle travel time and the permitted data transmission rate of each of the particular links.
  • control apparatus 800 may further include: a detecting module for detecting, based on a current location of the vehicle received from the main unit of the vehicle, whether the vehicle does not travel on the particular route, wherein the generating module 802 is further configured generating, if the detecting is confirmative, a new route from the current location of the vehicle to a destination of the particular route, and generating new route information that indicates the required vehicle travel time and the permitted data transmission rate of the new route, and the transmitting module 804 is further configured for transmitting the new route and the new route information to the main unit of the vehicle.
  • a detecting module for detecting, based on a current location of the vehicle received from the main unit of the vehicle, whether the vehicle does not travel on the particular route
  • the generating module 802 is further configured generating, if the detecting is confirmative, a new route from the current location of the vehicle to a destination of the particular route, and generating new route information that indicates the required vehicle travel time and the permitted data transmission rate of the new route
  • control apparatus 800 may further include: a determining module for determining, when the vehicle travel speed and/or the permitted data transmission rate of a certain link of the particular route changes, whether the vehicle has travelled through the certain link of the particular route based on a current location of the vehicle received from the main unit of the vehicle, wherein the transmitting module 804 is further configured for transmitting, if the determining is negative, updated information of the certain link of the particular route to the main unit of the vehicle, wherein the updated information includes an updated vehicle travel speed and/or an updated permitted data transmission rate of the certain link of the particular route, or, an updated required vehicle travel time and/or the updated permitted data transmission rate of the certain link of the particular route.
  • Fig. 5 illustrates a schematic diagram of a control apparatus according to a third embodiment of the present invention.
  • the control apparatus 900 shown in Fig. 5 may be implemented by software, hardware or combination of software and hardware, and may be installed in the electronic device 20.
  • the control apparatus 900 may include a sending module 902, a presenting module 904, a transmitting module 906, a buffering module 908 and a playing module 910.
  • the sending module 902 is configured for transmitting, when a user wants to watch a video in a vehicle through an electronic device, to a content server a video play request including route information received from a main unit of the vehicle, wherein the route information indicates a required vehicle travel time and a permitted data transmission rate of a particular route on which the vehicle is to travel.
  • the presenting module 904 is configured for presenting, on the electronic device, a list of video names received from the content server.
  • the transmitting module 906 is configured for transmitting to the content server a video name selected by the user from the list of video names.
  • the buffering module 908 is configured for buffering, when receiving video contents of a particular video corresponding to the selected video name from the content server, the received video contents of the particular video in the electronic device.
  • the playing module 910 is configured for playing the buffered video contents of the particular video on the electronic device.
  • the transmitting module 906 is further configured for transmitting, when receiving from the main unit of the vehicle new route information that indicates the required vehicle travel time and the permitted data transmission rate of a new route on which the vehicle is to travel, the new information to the content server
  • the presenting module 904 is further configured for presenting, when receiving from the content server a new list of video names and a message that indicates transmission and playing of the particular video cannot be finished before the vehicle arrives at a destination of the new route, the received message on the electronic device, and presenting, if the user wants to watch a new video in the vehicle, the new list of video names on the electronic device
  • the transmitting module 906 is further configured for transmitting, if the user selects a new video name from the new list of video names, the new video name to the content server
  • the buffering module 908 is further configured for buffering, when receiving video contents of a new video corresponding to the new video name from the content server, received video contents of the new video in the electronic device
  • the playing module 910 is further configured for
  • the transmitting module 906 is further configured for transmitting, when receiving from the main unit of the vehicle updated information of a certain link of the particular route and a current location of the vehicle, the updated information of the certain link of the particular route and the current location of the vehicle to the content server, wherein the updated information includes an updated vehicle travel speed and/or an updated permitted data transmission rate of the certain link of the particular route, or, an updated required vehicle travel time and/or the updated permitted data transmission rate of the certain link of the particular route, the presenting module 904 is further configured for presenting, when receiving from the content server a new list of video names and a message that indicates transmission and play of the particular video can not be finished before the vehicle arrives at a destination of the particular route, the received message on the electronic device, and presenting, if the user wants to watch a new video in the vehicle, the new list of video names on the electronic device, the transmitting module 906 is further configured for transmitting, if the user selects a new video name from the new list of video names, the new video
  • the transmitting module 906 is further configured for transmitting information on a maximum buffer size of the electronic device to the content server.
  • Fig. 6 illustrates a schematic diagram of a content server according to an embodiment of the present invention.
  • the content server 50 may include a memory 1010 and a processor 1020 coupled to the memory 1010, wherein the processor 1020 is configured for executing operations implemented by in the control apparatus 700.
  • Fig. 7 illustrates a schematic diagram of a route information server according to an embodiment of the present invention.
  • the route information server 40 may include a memory 1110 and a processor 1120 coupled to the memory 1110, wherein the processor 1120 is configured for executing operations implemented by in the control apparatus 800.
  • Fig. 8 illustrates a schematic diagram of an electronic device according to an embodiment of the present invention.
  • the electronic device 20 may include a memory 1210 and a processor 1220 coupled to the memory 1210, wherein the processor 1220 is configured for executing operations implemented by in the control apparatus 900.
  • Embodiments of the present invention may provide a computer program product including a computer-readable medium comprising codes for causing a computer to execute operations implemented by control apparatus 700, 800 or 900.

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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Navigation (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
  • Information Transfer Between Computers (AREA)
PCT/CN2016/080634 2016-04-29 2016-04-29 Control method and control apparatus WO2017185323A1 (en)

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