A kind of content recommendation method of vehicular amusement apparatus, device and vehicular amusement apparatus
Technical field
The present invention relates to automobile correlative technology field, particularly a kind of content recommendation method of vehicular amusement apparatus, device
And vehicular amusement apparatus.
Background technology
Existing taxi, particularly online order taxi (abbreviation net about car), are provided with seat
Amusement equipment, so that passenger watches video in ride-on vehicles, is played so that passenger has more preferable use feeling.
Amusement equipment would generally include many contents, such as video and various applications, to meet the various needs of passenger.
However, inventor has found during invention is realized, because the content that amusement equipment include is a lot, and passenger makes
With the limited time of taxi, therefore passenger does not have time enough and all the elements for reserving equipment is all browsed to seek
Look for the content of its suitable demand.
The content of the invention
Based on this, it is necessary to for prior art passenger can not be allowed to be searched out in finite time from amusement equipment suitable
The technical problem of the content of its demand, there is provided a kind of content recommendation method of vehicular amusement apparatus, device and vehicular amusement apparatus.
The embodiment of the present invention provides a kind of content recommendation method of vehicular amusement apparatus, including:
The contents usage information of the vehicular amusement apparatus of Current vehicle is obtained as Current Content use information, obtains other
The contents usage information of the vehicular amusement apparatus of vehicle is as statistical content use information;
Content recommendation is determined according to the Current Content use information and the statistical content use information, pushed away using described
Recommend content and carry out commending contents.
Further, the contents usage information includes the usage time for the content that the vehicular amusement apparatus is shown;
It is described that content recommendation is determined according to the Current Content use information and the statistical content use information, use institute
State content recommendation and carry out commending contents, specifically include:
Usage time of each content according to included by the Current Content use information and the statistical content are used
Usage time included by information determines the weighting usage time of each content, is determined according to the weighting usage time of each content
Content recommendation;
Commending contents are carried out using the content recommendation.
Further, the usage time be the split screen residence time, the video-see time, using total run time, should
With front stage operation time or the weighted statistical time of application running background time.
Further, it is described to be determined according to the Current Content use information and the statistical content use information in recommendation
Hold, before carrying out commending contents using the content recommendation, methods described also includes:
Passenger's riding information of Current vehicle is obtained as current passenger riding information;
It is described that content recommendation is determined according to the Current Content use information and the statistical content use information, use institute
State content recommendation and carry out commending contents, specifically include:
Entered according to the Current Content use information, the statistical content use information and the current passenger riding information
Row commending contents.
Further, it is described according to the Current Content use information, the statistical content use information and it is described work as
Preceding passenger's riding information carries out commending contents, specifically includes:
The statistical content use information matched with the current passenger riding information is obtained to use as matching statistical content
Information;
Content recommendation is determined according to the Current Content use information and the matching statistical content use information;
Commending contents are carried out using the content recommendation.
Further, passenger's riding information includes passenger's time of using cars, passenger distance, passenger loading position by bus
Put, and/or passenger getting off car position.
The embodiment of the present invention provides a kind of content recommendation device of vehicular amusement apparatus, including:
Contents usage information acquisition module, is used for:The contents usage information for obtaining the vehicular amusement apparatus of Current vehicle is made
For Current Content use information, the contents usage information for obtaining the vehicular amusement apparatus of other vehicles uses letter as statistical content
Breath;
Recommending module, it is used for:Determine to recommend according to the Current Content use information and the statistical content use information
Content, commending contents are carried out using the content recommendation.
Further, the contents usage information includes the usage time for the content that the vehicular amusement apparatus is shown;
The recommending module, is specifically used for:
Usage time of each content according to included by the Current Content use information and the statistical content are used
Usage time included by information determines the weighting usage time of each content, is determined according to the weighting usage time of each content
Content recommendation;
Commending contents are carried out using the content recommendation.
Further, the usage time be the split screen residence time, the video-see time, using total run time, should
With front stage operation time or the weighted statistical time of application running background time.
Further, before the recommending module, described device also includes:
Riding information acquisition module, is used for:Passenger's riding information of Current vehicle is obtained as current passenger riding information;
The recommending module, is specifically used for:
Entered according to the Current Content use information, the statistical content use information and the current passenger riding information
Row commending contents.
Further, the recommending module, is specifically used for:
The statistical content use information matched with the current passenger riding information is obtained to use as matching statistical content
Information;
Content recommendation is determined according to the Current Content use information and the matching statistical content use information;
Commending contents are carried out using the content recommendation.
Further, passenger's riding information includes passenger's time of using cars, passenger distance, passenger loading position by bus
Put, and/or passenger getting off car position.
The embodiment of the present invention provides a kind of vehicular amusement apparatus, including:Communicator and display device, the communicator
The content recommendation that content recommendation device for receiving foregoing any vehicular amusement apparatus is recommended;
The display device is used to show the content recommendation.
The embodiment of the present invention provides a kind of vehicular amusement apparatus, including:Storage device and display device, the storage device
The content recommendation that content recommendation device for storing foregoing any vehicular amusement apparatus is recommended;
The display device is used to show the content recommendation.
The contents usage information for the vehicular amusement apparatus that the embodiment of the present invention passes through Current vehicle is vehicle-mounted with other vehicles
The contents usage information of amusement equipment, determine that content recommendation is recommended after being considered so that passenger can obtain more preferably
Content recommendation.
Brief description of the drawings
Fig. 1 is a kind of workflow diagram of the content recommendation method for vehicular amusement apparatus that one embodiment of the invention provides;
Fig. 2 is a kind of workflow of the content recommendation method for vehicular amusement apparatus that alternative embodiment of the present invention provides
Figure;
Fig. 3 is a kind of workflow of the content recommendation method for vehicular amusement apparatus that another alternative embodiment of the present invention provides
Cheng Tu;
Fig. 4 is a kind of apparatus module figure of the content recommendation device for vehicular amusement apparatus that one embodiment of the invention provides;
Fig. 5 is a kind of device mould of the content recommendation device for vehicular amusement apparatus that another alternative embodiment of the present invention provides
Block figure;
Fig. 6 is a kind of apparatus module figure for vehicular amusement apparatus that one embodiment of the invention provides;
Fig. 7 is a kind of apparatus module figure for vehicular amusement apparatus that one embodiment of the invention provides;
Fig. 8 is the electronic equipment of the content recommendation method for the execution vehicular amusement apparatus that alternative embodiment of the present invention provides
Hardware architecture diagram.
Embodiment
The present invention will be further described in detail with specific embodiment below in conjunction with the accompanying drawings.
Embodiment one
A kind of workflow of the content recommendation method of the vehicular amusement apparatus provided as shown in Figure 1 for one embodiment of the invention
Cheng Tu, including:
Step S101, the contents usage information for obtaining the vehicular amusement apparatus of Current vehicle use letter as Current Content
Breath, obtains the contents usage information of vehicular amusement apparatus of other vehicles as statistical content use information;
Step S102, content recommendation is determined according to the Current Content use information and the statistical content use information,
Commending contents are carried out using the content recommendation.
Amusement equipment can be the equipment such as tablet personal computer (PAD), and amusement equipment have the function of being interacted with background server,
Video frequency program can be obtained, carry out the functions such as game interaction.Amusement equipment are communicated by network with background server, the reality of network
Example includes but is not limited to internet, intranet, LAN, mobile radio communication and combinations thereof.
Specifically, can be by the background server with amusement equipment network connection, the vehicle-mounted computer (Electronic of vehicle
Control Unit, ECU) or amusement equipment perform step S101 in itself, vehicle is interior where obtaining the amusement equipment
Hold the contents usage information of use information and the vehicular amusement apparatus of other vehicles.
Then step S102 is performed, content recommendation is determined and carries out commending contents.Specifically, commending contents can be by
Basis is worked as in itself for background server, the vehicle-mounted computer (Electronic Control Unit, ECU) of vehicle or amusement equipment
Preceding contents usage information and statistical content use information determines.The mode of recommendation can be by content recommendation top set or mark the side such as bright
Formula is recommended.Such as the video top set by recommendation, or by the application of recommendation, game top set, so as to attract passenger, be easy to passenger to make
With.
The contents usage information for the vehicular amusement apparatus that the embodiment of the present invention passes through Current vehicle is vehicle-mounted with other vehicles
The contents usage information of amusement equipment, determine that content recommendation is recommended after being considered so that passenger can obtain more preferably
Content recommendation.
Embodiment two
It is illustrated in figure 2 a kind of work of the content recommendation method for vehicular amusement apparatus that alternative embodiment of the present invention provides
Flow chart, including:
Step S201, the contents usage information for obtaining the vehicular amusement apparatus of Current vehicle use letter as Current Content
Breath, the contents usage information for obtaining the vehicular amusement apparatus of other vehicles use as statistical content use information, the content
Information includes the usage time for the content that the vehicular amusement apparatus is shown.
Specifically, the usage time be split screen residence time, video-see time, using total run time, before
Platform run time or the weighted statistical time of application running background time
Main screen is shown for example, vehicular amusement apparatus can use multiple split screen display availables, during beginning, shows and regards in main screen
Frequency content, passenger are swiped to the left in main screen, show application screen, and various applications or game, passenger are shown in application screen
Swiped to the right in main screen and then show news information etc..Passenger is in different split screen residence times, as split screen residence time.
Video can be shown on vehicular amusement apparatus, then passenger is corresponding to the video to the viewing time of each video
The video-see time.
Vehicular amusement apparatus can use application, and when passenger is using application, can record application applies total run time, together
When, for certain applications, it can also further segment record and apply application foreground time in front stage operation and apply rear
Backoff period is applied when platform is run.
Usage time is then the weighted statistical time of foregoing all kinds of times, such as can use average weighted mode, is
A weight is set per the class time, is then weighted and averagely obtains final usage time.
Step S202, to usage time of each content according to included by the Current Content use information and the statistics
Usage time included by contents usage information determines the weighting usage time of each content, is used according to the weighting of each content
Time determines content recommendation.
Specifically, content includes video content, application content.Wherein, application can also be subdivided into information class application, work
Have class is applied and game class is applied etc..
For each content, the usage time in the vehicular amusement apparatus in Current vehicle is obtained, and in other cars
The usage time in vehicular amusement apparatus in, is then weighted, such as to each content in Current vehicle
Usage time in vehicular amusement apparatus and the distribution of the usage time in the vehicular amusement apparatus in other vehicles are different
Weight, final weighting usage time is then calculated using average weighted mode.Wherein, it is contemplated that use multiplying for same vehicle
Visitor should have more close use habit, therefore for the weight of the usage time in the vehicular amusement apparatus in Current vehicle
The usage time that should be more than in the vehicular amusement apparatus in other vehicles.
More specifically, the usage time in vehicular amusement apparatus of each content in Current vehicle can be obtained, and
Average usage time in vehicular amusement apparatus in other vehicles, is then weighted.
Finally, the weighting usage time of the content of identical category can be ranked up according to order from big to small, will
The top n content that each classification is ranked up using weighting usage time, as the content recommendation of the category, wherein N is more than 1
Natural number.
Step S203, commending contents are carried out using the content recommendation.
The contents usage information for the vehicular amusement apparatus that the embodiment of the present invention passes through Current vehicle is vehicle-mounted with other vehicles
The contents usage information of amusement equipment, determine that content recommendation is recommended after being considered so that passenger can obtain more preferably
Content recommendation.Meanwhile the present embodiment is specifically recommended according to the weighting usage time of each content so as to passenger
Recommendation it is more accurate.
Embodiment three
It is illustrated in figure 3 a kind of content recommendation method for vehicular amusement apparatus that another alternative embodiment of the present invention provides
Workflow diagram, including:
Step S301, the contents usage information for obtaining the vehicular amusement apparatus of Current vehicle use letter as Current Content
Breath, obtains the contents usage information of vehicular amusement apparatus of other vehicles as statistical content use information.
Step S302, passenger's riding information of Current vehicle is obtained as current passenger riding information.
Because passenger is when using such as net about car, its request of getting on the bus can be sent to Wang Yue cars company, meanwhile, in passenger's branch
After payment, Wang Yue cars company also will appreciate that the time getting off of passenger, therefore passenger's riding information of place vehicle can be from joy
Obtained in the server of the Wang Yue cars company of vehicle where happy equipment.
Specifically, passenger's riding information include passenger's time of using cars, passenger ride distance, passenger loading position and/
Or passenger getting off car position.
Step S303, according to the Current Content use information, the statistical content use information and the current passenger
Riding information carries out commending contents.
Specifically:
The statistical content use information matched with the current passenger riding information is obtained to use as matching statistical content
Information.
Because matching statistical content use information is that the statistical content matched with the current passenger riding information uses letter
Breath, i.e., there is similar behavior by bus with passenger.For example, it may be passenger's time of using cars of statistical content use information is with working as
The difference of passenger's time of using cars of preceding passenger's riding information within a preset range, can be that the passenger of statistical content use information multiplies
The passenger of car distance and current passenger riding information ride distance difference within a preset range, can be statistical content using letter
The difference of the passenger loading position of breath and the passenger getting off car position of current passenger riding information within a preset range or can be
The difference of the passenger getting off car position of statistical content use information and the passenger getting off car position of current passenger riding information is in default model
In enclosing
Content recommendation is determined according to the Current Content use information and the matching statistical content use information.
Because the passenger of matching statistical content use information and Current vehicle has similar behavior by bus, therefore, meeting
With similar demand.Such as all be 9 points or so of all a whole morning by bus, then they should have similar information class
Demand, and how to be to ride Saturday, then it should have the demand of similar amusement class.Likewise, if distance multiplies by bus
Visitor, it has the demand of the longer video of viewing duration, such as viewing TV play, film etc., and by bus apart from short passenger, then
Have the demand of the shorter video of viewing duration, such as small video etc..Further, for close boarding position or position of getting off
Passenger, also have the demand to the amusement information in store near boarding position or position of getting off.
Commending contents are carried out using the content recommendation.
Wherein, step S301 and step S302 order only for the purposes of explanation, are not formed to right in the present embodiment
It is required that limitation.Those of ordinary skill in the art be to be understood that step S301 and step S302 order can exchange and
Do not influence actual effect.
The contents usage information for the vehicular amusement apparatus that the embodiment of the present invention passes through Current vehicle is vehicle-mounted with other vehicles
The contents usage information of amusement equipment, determine that content recommendation is recommended after being considered so that passenger can obtain more preferably
Content recommendation.Meanwhile the present embodiment increases passenger's riding information to be recommended so that the recommendation to passenger is more accurate.
Example IV
A kind of device mould of the content recommendation device of vehicular amusement apparatus of one embodiment of the invention offer is provided
Block figure, including:
Contents usage information acquisition module 401, is used for:Obtain the contents usage information of the vehicular amusement apparatus of Current vehicle
As Current Content use information, the contents usage information for obtaining the vehicular amusement apparatus of other vehicles uses as statistical content
Information.
Recommending module 402, is used for:Determine to push away according to the Current Content use information and the statistical content use information
Content is recommended, commending contents are carried out using the content recommendation.
The contents usage information for the vehicular amusement apparatus that the embodiment of the present invention passes through Current vehicle is vehicle-mounted with other vehicles
The contents usage information of amusement equipment, determine that content recommendation is recommended after being considered so that passenger can obtain more preferably
Content recommendation.
Embodiment five
A kind of content recommendation device for vehicular amusement apparatus that alternative embodiment of the present invention provides, including:
Contents usage information acquisition module, is used for:The contents usage information for obtaining the vehicular amusement apparatus of Current vehicle is made
For Current Content use information, the contents usage information for obtaining the vehicular amusement apparatus of other vehicles uses letter as statistical content
Breath, the contents usage information include the usage time for the content that the vehicular amusement apparatus is shown.
Specifically, the usage time be split screen residence time, video-see time, using total run time, before
Platform run time or the weighted statistical time of application running background time.
Recommending module, it is used for:To usage time of each content according to included by the Current Content use information and institute
The weighting usage time that the usage time included by statistical content use information determines each content is stated, according to adding for each content
Power usage time determines content recommendation;Commending contents are carried out using the content recommendation.
The contents usage information for the vehicular amusement apparatus that the embodiment of the present invention passes through Current vehicle is vehicle-mounted with other vehicles
The contents usage information of amusement equipment, determine that content recommendation is recommended after being considered so that passenger can obtain more preferably
Content recommendation.Meanwhile the present embodiment is specifically recommended according to the weighting usage time of each content so as to passenger
Recommendation it is more accurate.
Embodiment six
It is illustrated in figure 5 a kind of content recommendation device for vehicular amusement apparatus that another alternative embodiment of the present invention provides
Apparatus module figure, including:
Contents usage information acquisition module 501, is used for:Obtain the contents usage information of the vehicular amusement apparatus of Current vehicle
As Current Content use information, the contents usage information for obtaining the vehicular amusement apparatus of other vehicles uses as statistical content
Information.
Riding information acquisition module 502, is used for:The passenger's riding information for obtaining Current vehicle is believed by bus as current passenger
Breath;
Specifically, passenger's riding information include passenger's time of using cars, passenger ride distance, passenger loading position and/
Or passenger getting off car position.
Recommending module 503, is used for:According to the Current Content use information, the statistical content use information and described
Current passenger riding information carries out commending contents.
Specifically:
The statistical content use information matched with the current passenger riding information is obtained to use as matching statistical content
Information;
Content recommendation is determined according to the Current Content use information and the matching statistical content use information;
Commending contents are carried out using the content recommendation.
The contents usage information for the vehicular amusement apparatus that the embodiment of the present invention passes through Current vehicle is vehicle-mounted with other vehicles
The contents usage information of amusement equipment, determine that content recommendation is recommended after being considered so that passenger can obtain more preferably
Content recommendation.Meanwhile the present embodiment increases passenger's riding information to be recommended so that the recommendation to passenger is more accurate.
Embodiment seven
A kind of apparatus module figure of vehicular amusement apparatus of one embodiment of the invention offer is provided, including:Communication
Device 601 and display device 602, the communicator are used for the content recommendation device for receiving foregoing any vehicular amusement apparatus
The content recommendation of recommendation;
The display device is used to show the content recommendation.
The embodiment of the present invention obtains the contents usage information of the vehicular amusement apparatus according to Current vehicle by communicator
The content recommendation determined after being considered with the contents usage information of the vehicular amusement apparatus of other vehicles, and pass through display
Device is shown so that passenger can obtain more preferable content recommendation.
Embodiment eight
A kind of apparatus module figure of vehicular amusement apparatus of one embodiment of the invention offer is provided, including:Storage
Device 701 and display device 702, the storage device are used for the content recommendation device for storing foregoing any vehicular amusement apparatus
The content recommendation of recommendation;
The display device is used to show the content recommendation.
The embodiment of the present invention stores the contents usage information of the vehicular amusement apparatus according to Current vehicle by storage device
The content recommendation determined after being considered with the contents usage information of the vehicular amusement apparatus of other vehicles, and pass through display
Device is shown so that passenger can obtain more preferable content recommendation.
Ninth embodiment of the invention provides a kind of nonvolatile computer storage media, and the computer-readable storage medium is deposited
Computer executable instructions are contained, the computer executable instructions can perform the car entertainment in above-mentioned any means embodiment
The content recommendation method of equipment.
The electronics of the content recommendation method of the execution vehicular amusement apparatus of tenth embodiment of the invention offer is provided
The hardware architecture diagram of equipment, it mainly includes:One or more processors 810, memory 820 etc., with one in Fig. 8
Exemplified by reason device 810.
Performing the electronic equipment of the content recommendation method of vehicular amusement apparatus can also include:Input unit 830 and output
Device 840.
Processor 810, memory 820, input unit 830 and display device 840 can pass through bus or other modes
Connect, in Fig. 8 exemplified by being connected by bus.
Memory 820 is used as a kind of non-volatile computer readable storage medium storing program for executing, available for storage non-volatile software journey
Sequence, non-volatile computer executable program and module, such as the commending contents of the vehicular amusement apparatus in the embodiment of the present application
Programmed instruction/module corresponding to method, for example, contents usage information acquisition module 401 and recommending module 402 shown in accompanying drawing 4.
Processor 810 is stored in non-volatile software program, instruction and module in memory 820 by operation, each so as to perform
Kind application of function and data processing, that is, realize the content recommendation method of the vehicular amusement apparatus in above-described embodiment.
Memory 820 can include storing program area and storage data field, wherein, storing program area can store operation system
Application program required for system, at least one function;Storage data field can store to be filled according to the commending contents of vehicular amusement apparatus
That puts uses created data etc..In addition, memory 820 can include high-speed random access memory, can also include non-
Volatile memory, for example, at least a disk memory, flush memory device or other non-volatile solid state memory parts.
In some embodiments, memory 820 is optional including relative to the remotely located memory of processor 810, these remote memories
The device of the content recommendation method of vehicular amusement apparatus can be extremely performed by network connection.The example of above-mentioned network is included but not
It is limited to internet, intranet, LAN, mobile radio communication and combinations thereof.
The user that input unit 830 can receive input clicks on, and produces the content recommendation device with vehicular amusement apparatus
User set and function control it is relevant signal input.Display device 840 may include the display devices such as display screen, with display
Content recommendation.
It is stored in one or more of modules in the memory 820, when by one or more of processing
When device 810 is run, the content recommendation method of the vehicular amusement apparatus in above-mentioned any means embodiment is performed.
The said goods can perform the method that the embodiment of the present application is provided, and possesses the corresponding functional module of execution method and has
Beneficial effect.Not ins and outs of detailed description in the present embodiment, reference can be made to the method that the embodiment of the present application is provided.
The electronic equipment of the embodiment of the present invention exists in a variety of forms, includes but is not limited to:
(1) electronic control unit (Electronic Control Unit, ECU) is also known as " car running computer ", " vehicle-mounted computer "
Deng.Mainly by microprocessor (CPU), memory (ROM, RAM), input/output interface (I/O), analog-digital converter (A/D) and
The large scale integrated circuits such as shaping, driving form.
(2) mobile communication equipment:The characteristics of this kind equipment is that possess mobile communication function, and to provide speech, data
Communicate as main target.This Terminal Type includes:Smart mobile phone (such as iPhone), multimedia handset, feature mobile phone, and it is low
Hold mobile phone etc..
(3) super mobile personal computer equipment:This kind equipment belongs to the category of personal computer, there is calculating and processing work(
Can, typically also possess mobile Internet access characteristic.This Terminal Type includes:PDA, MID and UMPC equipment etc., such as iPad.
(4) portable entertainment device:This kind equipment can show and play content of multimedia.The kind equipment includes:Audio,
Video player (such as iPod), handheld device, e-book, and intelligent toy and portable car-mounted navigation equipment.
(5) server:The equipment for providing the service of calculating, the composition of server are total including processor, hard disk, internal memory, system
Line etc., server is similar with general computer architecture, but due to needing to provide highly reliable service, therefore in processing energy
Power, stability, reliability, security, scalability, manageability etc. require higher.
(6) other electronic installations with data interaction function.
In addition, the logical order in above-mentioned memory 820 can be realized and be used as by the form of SFU software functional unit
Independent production marketing in use, can be stored in a computer read/write memory medium.Based on such understanding, sheet
The part or the part of the technical scheme that the technical scheme of invention substantially contributes to prior art in other words can be with
The form of software product is embodied, and the computer software product is stored in a storage medium, including some instructions to
So that a mobile terminal (can be personal computer, server, or network equipment etc.) performs each embodiment of the present invention
The all or part of step of methods described.And foregoing storage medium includes:USB flash disk, mobile hard disk, read-only storage (ROM,
Read-Only Memory), random access memory (RAM, Random Access Memory), magnetic disc or CD etc. it is various
Can be with the medium of store program codes.
Device embodiment described above is only schematical, wherein the unit illustrated as separating component can
To be or may not be physically separate, it can be as the part that unit is shown or may not be physics list
Member, you can with positioned at a place, or can also be distributed on multiple NEs.It can be selected according to the actual needs
In some or all of module realize the purpose of scheme of the embodiment of the present invention.Those of ordinary skill in the art are not paying wound
In the case of the work for the property made, you can to understand and implement.
Through the above description of the embodiments, those skilled in the art can be understood that each embodiment can
Realized by the mode of software plus required general hardware platform, naturally it is also possible to pass through hardware.Based on such understanding, on
The part that technical scheme substantially in other words contributes to prior art is stated to embody in the form of software product, should
Computer software product can store in a computer-readable storage medium, such as ROM/RAM, magnetic disc, CD, including some fingers
Make to cause a computer equipment (can be personal computer, server, or network equipment etc.) to perform each implementation
Method described in some parts of example or embodiment.
Finally it should be noted that:Above example is only to illustrate the technical scheme of the embodiment of the present invention, rather than it is limited
System;Although the embodiment of the present invention is described in detail with reference to the foregoing embodiments, one of ordinary skill in the art should
Understand:It can still modify to the technical scheme described in foregoing embodiments, or to which part technical characteristic
Carry out equivalent substitution;And these modifications or replacement, the essence of appropriate technical solution is departed from various embodiments of the present invention skill
The spirit and scope of art scheme.