CN104735263B - Mobile terminal roller blind system and method - Google Patents
Mobile terminal roller blind system and method Download PDFInfo
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- CN104735263B CN104735263B CN201510159603.0A CN201510159603A CN104735263B CN 104735263 B CN104735263 B CN 104735263B CN 201510159603 A CN201510159603 A CN 201510159603A CN 104735263 B CN104735263 B CN 104735263B
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Abstract
Module, a roller blind control module and are chosen by roller blind curtain the invention discloses a kind of mobile terminal roller blind system and method, including at least one mobile terminal, a roller blind mobile terminal；Roller blind mobile terminal chooses module is used to be identified a need for from multiple mobile terminals the mobile terminal of roller blind；The content roller blind that roller blind control module is used to control to need to carry out on the mobile terminal of roller blind is shown on by roller blind curtain.The present invention can automatically identify driver's mobile terminal, and automatic by the information roller blind on driver's mobile terminal to Vehicular screen, improve traffic safety；The automatic community divided on application message sender and car between passenger; relation between analysis identification passenger and sender of the message; roller blind just only is carried out to the application message on driver's mobile phone in the case where passenger and sender of the message are in close relations; the mode of traditional vehicle-mounted interacted system " anencephaly " roller blind is broken through, the privacy of driver is greatly protected while traffic safety is improved.
Description
Technical field
The present invention relates to a kind of mobile terminal roller blind system and method.
Background technology
Driving, work, under the scene such as meeting, the message that the usual inconvenience of people is leafed through on oneself mobile phone, this when is just
Need to carry out roller blind to the message on user mobile phone to show.
With the continuous improvement and the fast development of auto manufacturing of people's living standard, possess unit, the family of automobile
Or it is personal more and more, the quantity and frequency that traffic accident occurs are also growing day by day, and traffic safety is more and more subject to people
Concern.In order to improve traffic safety, in addition to automobile safety means in itself, the driving habit of driver is also critically important.
Wherein, driver operated using mobile terminal on the run or read application message (wechat message, Twitter message,
Short message etc.) can have a strong impact on driving safety, many local traffic safety managements offices also to driving when make a phone call to take it is corresponding
Punishment measure.But driver inevitably needs to obtain information with mobile terminal in driving procedure, at present on the market
Occur in that many vehicle-mounted interacted systems support the interconnection and mapping of Vehicular screen and mobile phone screen, it is possible to achieve bluetooth telephone, hand
The functions such as machine screen map.But there is following defect in traditional vehicle-mounted interacted system：(1) driver must be to vehicle-mounted interacted system
Configured, the interconnection of driver's mobile phone and onboard system could be set up；And when in-car has multiple mobile terminals, system without
Method automatic identification which be driver's mobile phone, which be passenger's mobile phone, still need to driver and operated and selected, exist safety it is hidden
Suffer from.(2) existing vehicle-mounted interacted system can only realize simple screen map function, once driver is by oneself mobile phone and vehicle-mounted system
System connection, all application messages received on driver's mobile phone are displayed in Vehicular screen in which " can cover all at one glance ", even if
There are some application messages to belong to the privacy of driver, inconvenience is seen by passenger on car.
The content of the invention
It is an object of the invention to overcome the deficiencies in the prior art, there is provided a kind of mobile terminal roller blind system and method, fit
For the mobile terminal roller blind control under the environment such as vehicle-mounted, office, meeting；The automatic identification in the case where being operated without driver
Go out driver's mobile terminal of in-car, and automatic by the information roller blind on driver's mobile terminal to Vehicular screen, driver
No longer need to leaf through mobile phone to obtain the information on mobile phone, improve traffic safety；It is automatic to divide application message sender and car
Community between upper passenger, the relation between analysis identification passenger and sender of the message is only closed in passenger and sender of the message
Just roller blind is carried out in the case that system is close to the application message on driver's mobile phone to show, break through traditional vehicle-mounted interacted system " nothing
The mode of brain " roller blind, greatly protects the privacy of driver while traffic safety is improved.Under working environment, employee is not
Conveniently leaf through mobile phone when, automatically identify employee's mobile phone, and by the header length ground roller blind on its mobile phone to state-run computer screen
Shown on curtain or Machine tool display screen；Under conferencing environment, speaker's mobile phone is automatically identified, and by the header length on its mobile phone
Ground roller blind shows on speaker personal computer screen or meeting computer screen.
The purpose of the present invention is achieved through the following technical solutions：Mobile terminal roller blind system, including at least one
Mobile terminal, a roller blind mobile terminal choose module, a roller blind control module and by roller blind curtain；Each mobile terminal respectively with turn
Screen mobile terminal is chosen module and is connected, and roller blind mobile terminal is chosen module and is connected with by roller blind curtain by roller blind control module；
Described roller blind mobile terminal chooses module is used to be identified a need for from multiple mobile terminals the shifting of roller blind
Dynamic terminal；
Described roller blind control module is used to controlling needing to carry out content roller blind on the mobile terminal of roller blind to being turned
Shown on screen.
Under vehicle environment, described mobile terminal includes driver's mobile terminal and passenger's mobile terminal；It is by roller blind curtain
Vehicular screen；
Described roller blind mobile terminal chooses module includes that bluetooth connection state aware module, vehicle running state perceive mould
Block, sound ranging module, sound locating module and mobile terminal ownership determination module, bluetooth connection state aware module are used to feel
Know all mobile terminals being connected with on-vehicle Bluetooth；Vehicle running state sensing module is used for by the sensor on mobile terminal
Perceive the transport condition of vehicle；Sound ranging module be used for detect in-car each mobile terminal be preset in vehicle left front loudspeaker it
Between distance, obtain each mobile terminal to the distance generic sequence of the loudspeaker；It is remote that sound locating module is used for checking distance
Nearly generic sequence simultaneously realizes the positioning of mobile terminal；
Mobile terminal ownership determination module is used to judge driver's mobile terminal, when bluetooth connection state aware module is only felt
Know that a mobile terminal then assert the mobile terminal for driver's mobile terminal, directly by the content whole on the mobile terminal
Roller blind is in Vehicular screen；When bluetooth connection state aware module perceives number >=2 of mobile terminal, according to each mobile whole
The positioning result at end finds out the mobile terminal nearest apart from loudspeaker as driver's mobile terminal, and remaining is passenger's mobile terminal；
Described roller blind control module is enterprising to Vehicular screen by the content selective ground roller blind on driver's mobile terminal
Row display.
Described roller blind control module includes secret protection module, and secret protection module is used to analyze driver's mobile terminal
The contact data and user's contact net of information transmitter and passenger inside the vehicle, calculate the relation square in user's contact net in
Battle array, community division, detection passenger inside the vehicle and the community of information transmitter are carried out by relational matrix value, judge what the community was set
Authority, roller blind otherwise refuses roller blind to Vehicular screen if authority is judged as very.
Under working environment, described mobile terminal includes employee's mobile terminal and colleague's mobile terminal；By roller blind curtain
It is state-run computer screen or Machine tool display screen；
Roller blind mobile terminal chooses module includes bluetooth connection state aware module, bluetooth signal intensity detection module and shifting
Dynamic terminal attaching determination module, bluetooth connection state aware module is used to perceive all mobile ends being connected with roller blind system bluetooth
End；Bluetooth signal intensity detection module is used to detect the bluetooth signal intensity of each mobile terminal that roller blind system is received；It is mobile
Terminal attaching determination module judges that the most strong mobile terminal of bluetooth signal intensity is employee's mobile terminal, when bluetooth connection shape
State sensing module only perceives a mobile terminal and then assert that the mobile terminal is employee's mobile terminal；When bluetooth connection shape
When state sensing module perceives number >=2 of mobile terminal, judge that the most strong mobile terminal of bluetooth signal intensity is employee
Mobile terminal, remaining is colleague's mobile terminal；
Described roller blind control module is by the content selective ground roller blind on employee's mobile terminal to state-run computer screen
Shown in curtain or Machine tool display screen, the roller blind content related to work.
Under conferencing environment, described mobile terminal includes speaker's mobile terminal and participant's mobile terminal；By roller blind curtain
It is speaker personal computer screen or meeting computer screen；
Roller blind mobile terminal chooses module includes bluetooth connection state aware module, bluetooth signal intensity detection module and shifting
Dynamic terminal attaching determination module, bluetooth connection state aware module is used to perceive all mobile ends being connected with roller blind system bluetooth
End；Bluetooth signal intensity detection module is used to detect the bluetooth signal intensity of each mobile terminal that roller blind system is received；It is mobile
Terminal attaching determination module judges that the most strong mobile terminal of bluetooth signal intensity is speaker's mobile terminal；
Described roller blind control module is private electric to speaker by the content selective ground roller blind on speaker's mobile terminal
Shown on brain screen or meeting computer screen, the roller blind content related to Session Topic.
Mobile terminal roller blind method, comprises the following steps：
S1：The mobile terminal of roller blind is identified a need for from multiple mobile terminals；
S2：The content roller blind on the mobile terminal of roller blind will be needed to carry out to be shown on by roller blind curtain.
When roller blind system detectio is to in-car only one of which mobile terminal, step S1 directly judges the mobile terminal to drive
Member's mobile terminal；
When number >=2 of the roller blind system detectio to in-car mobile terminal, described step S1 includes following sub-step：
S101：A loudspeaker are preset at vehicle driver's seat；
S102：Roller blind system detectio goes out with it establishes each mobile terminal being connected, and high frequency beep signals are sent by loudspeaker,
Each mobile terminal returns to feedback signal to roller blind system after receiving the beep signals；
S103：Roller blind system obtains each mobile terminal to loudspeaker according to the precedence relationship that each mobile terminal receives beep signals
Distance generic sequence, judges that the mobile terminal for being initially received beep signals is driver's mobile terminal.
Mobile terminal roller blind method, the step of also positioning including a sound：First, according in distance generic sequence
Order from the near to the remote carries out position detection to each mobile terminal, and roller blind system control loudspeaker send the beep letters of different frequency
Number, each mobile terminal microphone receives the signal and records the time that reaches of the signal, and a beep signal is returned afterwards, turns
Screen system receives the beep signals of return；Secondly, according in distance generic sequence by as far as near order to it is each it is mobile eventually
End carries out position detection, and tracer signal reaches the time to each mobile terminal again；Operation twice obtains two reaching time-differences, calculates
Average time difference averagely is worth to, the positioning of mobile terminal is realized.
Described step S2 includes a secret protection step, including following sub-step：
S201：When needing the application roller blind on driver's mobile terminal to Vehicular screen, judge whether the application is fair
Perhaps the application of active roller blind, if it is, directly active roller blind, if it is not, then jumping to step S202；
S202：The contact data and user's contact net of information transmitter and passenger inside the vehicle, calculate user in analysis application
Relational matrix in contact net；
S203：Community division is carried out by relational matrix value；
S204：Divide after community, the community of detection passenger inside the vehicle and information transmitter judges the power that the community is set
Limit, roller blind otherwise refuses roller blind to Vehicular screen if authority is judged as very.
The step of the step of described step S202 includes an analysis contact data and analysis user's contact net：
The step of analysis contact data, includes following sub-step：
SS101：The user data that will be collected is initialized；
SS102：The contact parameter a between user is determined by calculating telex network informationij, the contact parameter can spend
Measure the contacts network of customer-centric；
Specifically, contact parameterWherein, aijGeneration
Contact parameter between table user i and user j, alpha+beta=1, (x1+x2) represent between user i and user j information sum, x1Generation
Table x '1+x”1, x '1Represent the Information Number that user i sends, x "1Represent the Information Number that user j sends；x2Represent x'2+x”2, x'2Generation
The Information Number that table user i is received, x "2The Information Number of user j receptions is represented, m represents the message sum sent for user i, institute
Contact parameter a can be accounted forijIn the proportional roles in information sender face；(1-m) represents the message sum sent for user j, institute's energy
Account for contact parameter aijIn the proportional roles in information sender face；N represents the message sum received for user j, to be accounted for connection
It is parameter aijIn the proportional roles in receiving party face；(1-n) represents the information sum received for user j, to be accounted for contact
Parameter aijIn the proportional roles in information sender face；
The step of analysis user's contact net, includes following sub-step：
SS201：In user's contact net, each user is joined by a node on behalf according to the collated contact for calculating
Number aijIf it is the weights on side in network, a non-directed graph of having the right is finally obtained；
SS202：User contact Netcom is crossed matrix and is stored in the form of generalized list, is set to matrix A, aijIt is its inside unit
Element；
SS203：It is theoretical according to the random walk based on Markov chain, entirely joined by each user of the matrix computations
Be the position in network, and with the Relation Parameters r between other contact personsij；
Specifically, Relation ParametersWherein, rijRepresent the Relation Parameters of user i and user j, P
It is the transfer matrix obtained according to Markov chain and relational matrix, t is its step-length, and d (k) is the length of node k, and R is it
Corresponding relational matrix, i.e. R are the corresponding Relation Parameters r of All Contacts in whole related networkijCombination, formed relation square
Battle array, size is contact person's number * contact person's numbers, and community, relation present in user's contact net are marked off according to relational matrix R
Matrix value is more big, illustrates that relation between the two is closer, with corresponding higher in a probability for community, otherwise otherwise.
The beneficial effects of the invention are as follows：
Under vehicle environment, driver's mobile terminal of in-car can be automatically identified in the case where being operated without driver,
And it is automatic by the information roller blind on driver's mobile terminal to Vehicular screen, driver no longer needs to leaf through mobile phone to obtain hand
Information on machine, improves traffic safety；The automatic community divided on application message sender and car between passenger, analysis identification
Relation between passenger and sender of the message, only in the case where passenger and sender of the message are in close relations just to driver's hand
Application message on machine carries out roller blind and shows, breaks through the mode of traditional vehicle-mounted interacted system " anencephaly " roller blind, is improving driving peace
The privacy of driver is greatly protected while complete.
Under working environment, employee be inconvenient to leaf through mobile phone when, automatically identify employee's mobile phone, and by the information on its mobile phone
Optionally roller blind shows on state-run computer screen or Machine tool display screen.
Under conferencing environment, speaker's mobile phone is automatically identified, and by the header length ground roller blind on its mobile phone to speaker
Shown on people personal computer screen or meeting computer screen.
Brief description of the drawings
Fig. 1 is state aware flow chart；
Fig. 2 is position overhaul flow chart；
Fig. 3 is sound positioning flow figure；
Fig. 4 is the flow chart of method for secret protection.
Specific embodiment
Technical scheme, but protection of the invention are described in further detail with specific embodiment below in conjunction with the accompanying drawings
Scope is not limited to as described below.
Mobile terminal roller blind system, including at least one mobile terminal, a roller blind mobile terminal choose module, a roller blind control
Molding block and one is by roller blind curtain；Each mobile terminal is chosen module and is connected with roller blind mobile terminal respectively, and roller blind mobile terminal is chosen
Module is connected by roller blind control module with by roller blind curtain；
Described roller blind mobile terminal chooses module is used to be identified a need for from multiple mobile terminals the shifting of roller blind
Dynamic terminal；
Described roller blind control module is used to controlling needing to carry out content roller blind on the mobile terminal of roller blind to being turned
Shown on screen.
【Embodiment 1】Under vehicle environment, driver's mobile terminal is detected by TDOA time difference algorithms.Described movement
Terminal includes driver's mobile terminal and passenger's mobile terminal；It is Vehicular screen by roller blind curtain；Described roller blind mobile terminal choosing
Modulus block includes bluetooth connection state aware module, vehicle running state sensing module, sound ranging module, sound locating module
Belong to determination module with mobile terminal, bluetooth connection state aware module is used to perceive all mobile ends being connected with on-vehicle Bluetooth
End；Vehicle running state sensing module is used for the transport condition by the sensor senses vehicle on mobile terminal；Sound ranging
Module is used to detect in-car each mobile terminal and is preset in the distance between vehicle left front loudspeaker, obtains each mobile terminal and arrives this
The distance generic sequence of loudspeaker；Sound locating module is used for checking distance distance generic sequence and realizes determining for mobile terminal
Position；
Mobile terminal ownership determination module is used to judge driver's mobile terminal, when bluetooth connection state aware module is only felt
Know that a mobile terminal then assert the mobile terminal for driver's mobile terminal, directly by the content whole on the mobile terminal
Roller blind is in Vehicular screen；When bluetooth connection state aware module perceives number >=2 of mobile terminal, according to each mobile whole
The positioning result at end finds out the mobile terminal nearest apart from loudspeaker as driver's mobile terminal, and remaining is passenger's mobile terminal；
Described roller blind control module is enterprising to Vehicular screen by the content selective ground roller blind on driver's mobile terminal
Row display.
Under vehicle environment, if, it is necessary to driver protects in onboard system in advance by the way of driver's mobile phone is bound
Deposit the bluetooth device name or numbering of driver's mobile phone.Described mobile terminal includes driver's mobile terminal and passenger's movement eventually
End；It is Vehicular screen by roller blind curtain；The bluetooth that described roller blind mobile terminal chooses preservation driver's mobile terminal in module sets
Standby title or numbering, when there is mobile terminal to be connected with on-vehicle Bluetooth, whether the Direct Recognition mobile terminal is that driver moves
Terminal；Described roller blind control module will be shown on the content selective ground roller blind on driver's mobile terminal to Vehicular screen
Show.
Described roller blind control module includes secret protection module, and secret protection module is used to analyze driver's mobile terminal
The contact data and user's contact net of information transmitter and passenger inside the vehicle, calculate the relation square in user's contact net in
Battle array, community division, detection passenger inside the vehicle and the community of information transmitter are carried out by relational matrix value, judge what the community was set
Authority, roller blind otherwise refuses roller blind to Vehicular screen if authority is judged as very.
【Embodiment 2】Under working environment, described mobile terminal includes employee's mobile terminal and colleague's mobile terminal；
It is state-run computer screen or Machine tool display screen by roller blind curtain；Roller blind mobile terminal chooses module includes bluetooth connection state aware mould
Block, bluetooth signal intensity detection module and mobile terminal ownership determination module, bluetooth connection state aware module are used to perceive institute
There is the mobile terminal being connected with roller blind system bluetooth；Bluetooth signal intensity detection module is each for detecting that roller blind system is received
The bluetooth signal intensity of mobile terminal；Mobile terminal ownership determination module judges that the most strong mobile terminal of bluetooth signal intensity is member
Cost people's mobile terminal, then assert that the mobile terminal is member when bluetooth connection state aware module only perceives a mobile terminal
Cost people's mobile terminal；When bluetooth connection state aware module perceives number >=2 of mobile terminal, judge that Bluetooth signal is strong
The most strong mobile terminal of degree is employee's mobile terminal, and remaining is colleague's mobile terminal；Described roller blind control module is by member
Content selective ground roller blind on cost people's mobile terminal, can be only to being shown on state-run computer screen or Machine tool display screen
The roller blind content related to work.
Under working environment, if employee just consults mobile phone in operation inconvenience, the information roller blind on employee's mobile phone can be arrived
On the smart machine with display function such as office computer, Machine tool display screen.Can also be by the way of employee's mobile phone be bound, member
Work binds the mobile phone of oneself on the smart machine for need roller blind in advance, keeps the communication connection between mobile phone and smart machine.This
Sample one, just can be to be shown, without mobile phone of leafing through when information is received on employee's mobile phone on roller blind to smart machine.
【Embodiment 3】Under conferencing environment, described mobile terminal includes speaker's mobile terminal and participant's mobile terminal；
It is speaker personal computer screen or meeting computer screen by roller blind curtain；Roller blind mobile terminal chooses module includes bluetooth connection shape
State sensing module, bluetooth signal intensity detection module and mobile terminal ownership determination module, bluetooth connection state aware module are used
In all mobile terminals being connected with roller blind system bluetooth of perception；Bluetooth signal intensity detection module is used to detect that roller blind system connects
The bluetooth signal intensity of each mobile terminal for receiving；Mobile terminal ownership determination module judges the most strong movement of bluetooth signal intensity
Terminal is speaker's mobile terminal；Described roller blind control module arrives the content selective ground roller blind on speaker's mobile terminal
Shown on speaker personal computer screen or meeting computer screen, can the roller blind content related to Session Topic.
Under conferencing environment, if meeting speaker is presiding over the meeting, mobile phone is consulted in inconvenience, can be by speaker's mobile phone
Information roller blind to being shown on the screen of its personal computer or lecture computer.If the information content and Session Topic not phase
Close, then it is contemplated that by the information content roller blind to the personal computer of speaker；If the information content has one with Session Topic
Determine correlation, then by the information content roller blind to meeting computer, or even roller blind is shown to projection screen.Certainly, for
The identification of speaker's mobile phone under conferencing environment, can equally be carried out using the mode such as artificial binding or Intelligent Recognition positioning.
It should be noted that the present invention is applicable not only to vehicle-mounted, office, conference scenario, all user's inconvenience are applied also for
Leaf through mobile terminal, the scene that needs roller blind to show.
Mobile terminal roller blind method, comprises the following steps：
S1：The mobile terminal of roller blind is identified a need for from multiple mobile terminals；
S2：The content roller blind on the mobile terminal of roller blind will be needed to carry out to be shown on by roller blind curtain.
As shown in figure 1, first, having detected whether that mobile terminal is connected to onboard system, and record the connection of mobile terminal
Order and number.Then the transport condition of vehicle is judged by the acceleration transducer of mobile terminal so as to exclude not in the car but
The mobile terminal of this on-vehicle Bluetooth system can be detected.When mobile terminal connects bluetooth and detects vehicle in transport condition,
Subsequent operation is carried out to mobile terminal according to the order of connection.
When roller blind system detectio is to in-car only one of which mobile terminal, step S1 directly judges the mobile terminal to drive
Member's mobile terminal, directly implements roller blind to the mobile terminal.
When number >=2 of the roller blind system detectio to in-car mobile terminal, it is necessary to it is driver to find out which mobile terminal
, as shown in Fig. 2 described step S1 includes following sub-step：
S101：At vehicle driver's seat a loudspeaker are preset (for left rudder country, i.e., in vehicle left front)；
S102：Roller blind system detectio goes out with it establishes each mobile terminal being connected, and records the connection of each mobile terminal
Order and number, high frequency beep signals are sent by loudspeaker, and each mobile terminal returns to feedback signal extremely after receiving the beep signals
Roller blind system；
S103：Roller blind system obtains each mobile terminal to loudspeaker according to the precedence relationship that each mobile terminal receives beep signals
Distance generic sequence, judges that the mobile terminal for being initially received beep signals is driver's mobile terminal.
Roller blind system detects driver's mobile terminal by TDOA time difference algorithms, without driver's operation, also will not
The normal of influence passenger's mobile terminal is used.
After beep voice signals are sampled, how to obtain needing detected beep signals from the data of sampling
It is critically important.According to data, if the signal of vehicle audio hair has good autocorrelation performance, it is possible to easily pass through
The method that signal carries out correlation computations with template signal will be received, using the peak point of correlation calculation result as Beep signals S's
Due in point.But under practical circumstances, due to the multipath effect that causes of reflection, and other disturbing factors influence, phase
The top for closing result tends not to refer to the arrival time of signal.In this case, included using the previous of top
The 1st spike in 0 window of sampled point of ω represents the arrival of signal.In order to find this spike, we are provided with two
Individual parameter：Height h and G-bar w.Just it is considered as " peak " more than the sampled point of certain altitude, and between neighbouring sampled point
G-bar is considered as " spike " more than certain value.
Mobile terminal roller blind method, the step of also positioning including a sound：First, according in distance generic sequence
Order from the near to the remote carries out position detection to each mobile terminal, and roller blind system control loudspeaker send the beep letters of different frequency
Number, each mobile terminal microphone receives the signal and records the time that reaches of the signal, and a beep signal is returned afterwards, turns
Screen system receives the beep signals of return；Secondly, according in distance generic sequence by as far as near order to it is each it is mobile eventually
End carries out position detection, and tracer signal reaches the time to each mobile terminal again；Operation twice obtains two reaching time-differences, calculates
Average time difference averagely is worth to, the positioning of mobile terminal is realized.
As shown in figure 3, according to the distance generic sequence of distance of mobile terminal in-car left front loudspeaker, one by one to movement
Detected the position of terminal.Vehicle-mounted head unit controls each vehicle-mounted loudspeaker to send different high frequencies in the same time interval
Beep signals, filter and detect by signal, each time of arrival (toa) of mobile terminal records, a beep signal is returned afterwards and is given
Onboard system.After onboard system receives signal, each vehicle-mounted loudspeaker is controlled between same time by vehicle-mounted head unit again
Every different high frequency beep signals (now the order of sending signal is opposite with first time) are sent, also pass through signal filtering and examine
After survey, each time of arrival (toa) of mobile terminal records.By operating twice, two reaching time-differences are obtained, averaged i.e.
The required time difference is can obtain, it is poor to can obtain relative distance according to speed c, so that test position.According to the distance being calculated
Difference moves terminal positioning, then determines whether the location of mobile terminal is at operating seat, roller blind then to be carried out in this way
Prompting.
Find the algorithm of the mobile terminal nearest from front vehicle seats left side vehicle audio D3.1：
When finding to have many mobile terminals onboard, by the vehicle audio D3.1 on the left of the suicide seat of driver position
Send Beep signals and find the mobile terminal nearest from it, because only that the mobile end nearest from driver position side vehicle audio
The end just most likely terminal of driver, thus eliminating the need unnecessary positioning time.Each shifting can be calculated according to following method
Distance of the dynamic terminal to vehicle audio D3.1 on the left of suicide seat：
Suicide seat left side vehicle audio D3.1 is in T0Moment sends Beep signal S1, then mobile terminal Pi(i=1 ...,
N) and vehicle audio D3.1 MIC respectively in tB1、tA1Receive the S1 signals.Then terminal Pi(i=1 ..., n) in T1Moment
Send Spi (i=1 .., n) signal, terminal Pi(i=1 ..., n) and vehicle audio D3.1 MIC respectively in tB2、tA2Moment connects
Receive Spi (i=1 .., n) signal.So, vehicle audio D3.1 to terminal Pi(i=1 ..., n) can be by Formula Series apart from D
Obtain：
DA,A=c* (tA1-T0)
DA,B=c* (tB1-T0)
DB,A=c* (tA2-T1)
DB,B=c* (tB2-T1)
Wherein, Dij represents i equipment loudspeaker to the distance of j equipment microphones.
Wherein, c represents speed of sound, DB,B, DA,ARepresent respective MIC to the distance of loudspeaker.
After being sampled by A/D converter, distance can be obtained with following calculating formula：
WhereinRepresent suicide seat left side vehicle audio D3.1 and mobile terminal Pi(i=1 ..., n) carry out letter
Number sampling frequency, nxRepresent and detecting beep signal moment equipment acquisition sampled point sequence number.
When mobile terminal connects bluetooth and detects automobile in transport condition, a beep signal, the letter are just sent
Number by vehicle-mounted head unit receive and control vehicle audio (front stall left side D3.1, front stall right side D3.2, back seat left side D3.3, after
Seat right side D3.4) respective Beep signal files are played, for any two vehicle audio i and j, the first play signal of first time i,
Elapsed time Δ tijJ play signal, can be received by mobile terminal by the signal of vehicle audio broadcasting and tracer signal is reached afterwards
Time, and then calculate time difference Δ t 'ij.Mobile terminal receives signal and calculates and send one again at once after the time difference
Individual beep signals, are received by vehicle-mounted head unit by Bluetooth system and control vehicle audio to play, now j elder generations play signal,
By with identical first time, Δ time difference tjiI play signal, equally, can be moved eventually by the signal of vehicle audio broadcasting afterwards
The time that end is received and tracer signal is reached, and then calculate time difference Δ t "ij。
As the above analysis, Δ T (signal reaches the time difference of mobile terminal) can be expressed as：
Δ T=Δs t 'ij-Δtij
Δ T=Δs t "ij-Δtji
And Δ tij=-Δ tji
From three above formula：
Δ T=(Δ t 'ij+Δt”ij)/2
Beep signal arrival time difference Δs t 'ijCan be calculated by following formula：
Δt’ij=(j-i)/f
Wherein, when i is represented and be connected to first beep signal S1, i-th data that mobile terminal is being sampled, and j is represented and worked as
When being connected to beep signals, j-th data that mobile terminal is being sampled.
The time difference Δ T and the spread speed c of sound gone out according to mobile terminal mobile computing, can calculate mobile terminal
To two range difference Δ d of vehicle audioij, such as formula：
Δdij=c* Δs T
After having obtained the time difference according to TDOA algorithms, then each vehicle audio to the range difference of mobile terminal is calculated, this
Sample just can according to mobile terminal judge whether close to which vehicle audio be driver mobile terminal
By Δ d computed aboveijMay determine that whether mobile terminal belongs to driver, be just to represent when following equation is met
Mobile terminal is in the previous section of automobile：
(Δd13+Δd24)/2 ＞ THfb
Wherein, THfbTo carry out judging the threshold values that mobile terminal is set in front stall or back seat, Δ d13Represent left
Two, side vehicle audio reaches the range difference of mobile terminal, Δ d24Represent that two, the right vehicle audio reaches the distance of mobile terminal
Difference.
When judging that mobile terminal is before automobile, then judge whether the mobile terminal is driver institute according to following equation
Have：
Δd12＞ THlr
Wherein, THlrBe for judge mobile terminal whether the threshold values for belonging to driver and setting.
As shown in figure 4, described step S2 includes a secret protection step, including following sub-step：
S201：When needing the application roller blind on driver's mobile terminal to Vehicular screen, judge whether the application is fair
Perhaps the application of active roller blind, if it is, directly active roller blind, if it is not, then jumping to step S202；
S202：The contact data and user's contact net of information transmitter and passenger inside the vehicle, calculate user in analysis application
Relational matrix in contact net；
S203：Community division is carried out by relational matrix value；
S204：Divide after community, the community of detection passenger inside the vehicle and information transmitter judges the power that the community is set
Limit, roller blind otherwise refuses roller blind to Vehicular screen if authority is judged as very.
The step of the step of described step S202 includes an analysis contact data and analysis user's contact net：
The step of analysis contact data, includes following sub-step：
SS101：The user data that will be collected is initialized；
SS102：The contact parameter a between user is determined by calculating telex network informationij, the contact parameter can spend
Measure the contacts network of customer-centric；
Specifically, contact parameterWherein, aijGeneration
Contact parameter between table user i and user j, alpha+beta=1, (x1+x2) represent between user i and user j information sum, x1Generation
Table x '1+x”1, x '1Represent the Information Number that user i sends, x "1Represent the Information Number that user j sends；x2Represent x'2+x”2, x'2Generation
The Information Number that table user i is received, x "2Represent the Information Number of user j receptions；M represents the message sum sent for user i, institute
Contact parameter a can be accounted forijIn the proportional roles in information sender face；(1-m) represents the message sum sent for user j, institute's energy
Account for contact parameter aijIn the proportional roles in information sender face；N represents the message sum received for user j, to be accounted for connection
It is parameter aijIn the proportional roles in receiving party face；(1-n) represents the information sum received for user j, to be accounted for contact
Parameter aijIn the proportional roles in information sender face, this front and rear parameters that usually adjust being added equal to 1 of alpha beta are accounted for
The weight of ratio.
The step of analysis user's contact net, includes following sub-step：
SS201：In user's contact net, each user is joined by a node on behalf according to the collated contact for calculating
Number aijIf it is the weights on side in network, a non-directed graph of having the right is finally obtained；
SS202：User contact Netcom is crossed matrix and is stored in the form of generalized list, is set to matrix A, aijIt is its inside unit
Element；
SS203：It is theoretical according to the random walk based on Markov chain, entirely joined by each user of the matrix computations
Be the position in network, and with the Relation Parameters r between other contact personsij；
Specifically, Relation ParametersWherein, rijRepresent the Relation Parameters of user i and user j, P
It is the transfer matrix obtained according to Markov chain and relational matrix, t is its step-length, and d (k) is the length of node k, and R is it
Corresponding relational matrix, i.e. R are the corresponding Relation Parameters r of All Contacts in whole related networkijCombination, formed relation square
Battle array, size is contact person's number * contact person's numbers, and community, relation present in user's contact net are marked off according to relational matrix R
Matrix value is more big, illustrates that relation between the two is closer, with corresponding higher in a probability for community, otherwise otherwise.
The above is only the preferred embodiment of the present invention, it should be understood that the present invention is not limited to described herein
Form, is not to be taken as the exclusion to other embodiment, and can be used for various other combinations, modification and environment, and can be at this
In the text contemplated scope, it is modified by the technology or knowledge of above-mentioned teaching or association area.And those skilled in the art are entered
Capable change and change does not depart from the spirit and scope of the present invention, then all should be in the protection domain of appended claims of the present invention
It is interior.
Claims (8)
1. mobile terminal roller blind system, including at least one mobile terminal and is by roller blind curtain；It is characterized in that：Also include one turn
Screen mobile terminal chooses module and a roller blind control module, and described roller blind mobile terminal chooses module and each mobile terminal phase
Even, and by roller blind control module it is connected with by roller blind curtain；Described roller blind mobile terminal chooses module to be used for from multiple movement
The mobile terminal of roller blind is identified a need in terminal；Described roller blind control module is used to control to need to carry out roller blind
Content roller blind on mobile terminal is shown on by roller blind curtain；
Described roller blind control module includes secret protection module, and secret protection module is used to analyze driver's mobile terminal application
Middle information transmitter and the contact data and user's contact net of passenger inside the vehicle, calculate the relational matrix in user's contact net, lead to
The relation matrix value of mistake carries out community division, detection passenger inside the vehicle and the community of information transmitter, judges the authority that the community is set,
Roller blind otherwise refuses roller blind to Vehicular screen if authority is judged as very.
2. mobile terminal roller blind system according to claim 1, it is characterised in that：Under vehicle environment, described mobile end
End includes driver's mobile terminal and passenger's mobile terminal；It is Vehicular screen by roller blind curtain；
Described roller blind mobile terminal choose module include bluetooth connection state aware module, vehicle running state sensing module,
Sound ranging module, sound locating module and mobile terminal ownership determination module, bluetooth connection state aware module are used to perceive
All mobile terminals being connected with on-vehicle Bluetooth；Vehicle running state sensing module is used for by the sensor sense on mobile terminal
Know the transport condition of vehicle；Sound ranging module is used to detect in-car each mobile terminal and be preset between the loudspeaker of vehicle left front
Distance, obtain each mobile terminal to the distance generic sequence of the loudspeaker；It is far and near that sound locating module is used for checking distance
Generic sequence simultaneously realizes the positioning of mobile terminal；
Mobile terminal ownership determination module is used to judge driver's mobile terminal, when bluetooth connection state aware module is only perceived
One mobile terminal then assert the mobile terminal for driver's mobile terminal, directly by the content whole roller blind on the mobile terminal
Onto Vehicular screen；When bluetooth connection state aware module perceives number >=2 of mobile terminal, according to each mobile terminal
Positioning result finds out the mobile terminal nearest apart from loudspeaker as driver's mobile terminal, and remaining is passenger's mobile terminal；
Described roller blind control module will be shown on the content selective ground roller blind on driver's mobile terminal to Vehicular screen
Show.
3. mobile terminal roller blind system according to claim 1, it is characterised in that：Under working environment, described mobile end
End includes employee's mobile terminal and colleague's mobile terminal；It is state-run computer screen or Machine tool display screen by roller blind curtain；
Roller blind mobile terminal chooses module includes bluetooth connection state aware module, bluetooth signal intensity detection module and movement eventually
End ownership determination module, bluetooth connection state aware module is used to perceive all mobile terminals being connected with roller blind system bluetooth；
Bluetooth signal intensity detection module is used to detect the bluetooth signal intensity of each mobile terminal that roller blind system is received；Mobile terminal
Ownership determination module judges that the most strong mobile terminal of bluetooth signal intensity is employee's mobile terminal, when bluetooth connection state sense
Know that module only perceives a mobile terminal and then assert that the mobile terminal is employee's mobile terminal；When bluetooth connection state sense
When knowing that module perceives number >=2 of mobile terminal, judge that the most strong mobile terminal of bluetooth signal intensity is mobile as employee
Terminal, remaining is colleague's mobile terminal；
Described roller blind control module by the content selective ground roller blind on employee's mobile terminal to state-run computer screen or
Shown in Machine tool display screen, the roller blind content related to work.
4. mobile terminal roller blind system according to claim 1, it is characterised in that：Under conferencing environment, described mobile end
End includes speaker's mobile terminal and participant's mobile terminal；It is speaker personal computer screen or meeting computer screen by roller blind curtain
Curtain；
Roller blind mobile terminal chooses module includes bluetooth connection state aware module, bluetooth signal intensity detection module and movement eventually
End ownership determination module, bluetooth connection state aware module is used to perceive all mobile terminals being connected with roller blind system bluetooth；
Bluetooth signal intensity detection module is used to detect the bluetooth signal intensity of each mobile terminal that roller blind system is received；Mobile terminal
Ownership determination module judges that the most strong mobile terminal of bluetooth signal intensity is speaker's mobile terminal；
Described roller blind control module is by the content selective ground roller blind on speaker's mobile terminal to speaker's personal computer's screen
Shown on curtain or meeting computer screen, the roller blind content related to Session Topic.
5. mobile terminal roller blind method, it is characterised in that：Comprise the following steps：
S1：The mobile terminal of roller blind is identified a need for from multiple mobile terminals；
When roller blind system detectio is to in-car only one of which mobile terminal, step S1 directly judges that the mobile terminal is moved as driver
Dynamic terminal；
When number >=2 of the roller blind system detectio to in-car mobile terminal, described step S1 includes following sub-step：
S101：A loudspeaker are preset at vehicle driver's seat；
S102：Roller blind system detectio goes out with it establishes each mobile terminal being connected, and high frequency beep signals are sent by loudspeaker, each to move
Dynamic terminal returns to feedback signal to roller blind system after receiving the beep signals；
S103：Roller blind system obtains each mobile terminal to loudspeaker according to the precedence relationship that each mobile terminal receives beep signals
Distance generic sequence, judges that the mobile terminal for being initially received beep signals is driver's mobile terminal；
S2：The content roller blind on the mobile terminal of roller blind will be needed to carry out to be shown on by roller blind curtain.
6. mobile terminal roller blind method according to claim 5, it is characterised in that：Described S103 steps it also include one
The step of individual sound is positioned：First, line position is entered to each mobile terminal according to the order in distance generic sequence from the near to the remote
Detection is put, roller blind system control loudspeaker send the beep signals of different frequency, and each mobile terminal microphone receives the signal simultaneously
The time that reaches of the signal is recorded, a beep signal is returned afterwards, roller blind system receives the beep signals of return；Secondly, root
Position detection is carried out to each mobile terminal by as far as near order according in distance generic sequence, each mobile terminal is recorded again
Signal reaches the time；Operation twice obtains two reaching time-differences, and calculating is averagely worth to average time difference, realizes mobile terminal
Positioning.
7. mobile terminal roller blind method according to claim 5, it is characterised in that：Described step S2 includes a privacy
Protection step, including following sub-step：
S201：When needing the application roller blind on driver's mobile terminal to Vehicular screen, judge whether the application is to allow master
The application of dynamic roller blind, if it is, directly active roller blind, if it is not, then jumping to step S202；
S202：The contact data and user's contact net of information transmitter and passenger inside the vehicle, calculate user's contact in analysis application
Relational matrix in net；
S203：Community division is carried out by relational matrix value；
S204：Divide after community, the community of detection passenger inside the vehicle and information transmitter judges the authority that the community is set, if
Authority is judged as that very then roller blind, to Vehicular screen, otherwise refuses roller blind.
8. mobile terminal roller blind method according to claim 7, it is characterised in that：Described step S202 includes one point
The step of the step of analysis contact data and analysis user's contact net：
The step of analysis contact data, includes following sub-step：
SS101：The user data that will be collected is initialized；
SS102：The contact parameter a between user is determined by calculating telex network informationij, the contact parameter can measure with
The contacts network of user-center；
Specifically, contact parameterWherein, aijRepresent and use
Contact parameter between family i and user j, alpha+beta=1, (x1+x2) represent between user i and user j information sum, x1Represent
x′1+x″1, x '1Represent the Information Number that user i sends, x "1Represent the Information Number that user j sends；x2Represent x '2+x″2, x '2Represent
The Information Number that user i is received, x "2The Information Number of user j receptions is represented, m represents the message sum sent for user i, institute's energy
Account for contact parameter aijIn the proportional roles in information sender face, (1-m) represents the message sum sent for user j, to be accounted for
Contact parameter aijIn the proportional roles in information sender face；N represents the message sum received for user j, to be accounted for contact
Parameter aijIn the proportional roles in receiving party face；(1-n) represents the information sum received for user j, to be accounted for contact ginseng
Number aijIn the proportional roles in information sender face；
The step of analysis user's contact net, includes following sub-step：
SS201：User contact net in, each user by a node on behalf, according to the collated contact parameter a for calculatingij,
If it is the weights on side in network, a non-directed graph of having the right is finally obtained；
SS202：User contact Netcom is crossed matrix and is stored in the form of generalized list, is set to matrix A, aijIt is its inner element；
SS203：It is theoretical according to the random walk based on Markov chain, by each user of the matrix computations in whole contact net
Position in network, and with the Relation Parameters r between other contact personsij；
Specifically, Relation ParametersWherein, rijThe Relation Parameters of user i and user j are represented, P is root
According to the transfer matrix that Markov chain and relational matrix are obtained, t is its step-length, and d (k) is the length of node k, and R is its correspondence
Relational matrix, i.e. R be whole related network in the corresponding Relation Parameters r of All ContactsijCombination, formed relational matrix,
Size is contact person's number * contact person's numbers, and community, relation square present in user's contact net are marked off according to relational matrix R
Battle array value it is more big, illustrate that relation between the two is closer, with a probability for community accordingly it is higher, otherwise otherwise.
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| CN107786714B (en) * | 2016-08-31 | 2019-11-05 | 腾讯科技（深圳）有限公司 | Sound control method, apparatus and system based on vehicle-mounted multimedia equipment |
| CN107920099A (en) * | 2016-10-09 | 2018-04-17 | 北京嘀嘀无限科技发展有限公司 | One kind reports message treatment method and server |
| CN109803247A (en) * | 2017-11-16 | 2019-05-24 | 北汽（镇江）汽车有限公司 | A kind of the phone directory management method and onboard system of onboard system |
| CN112637769B (en) * | 2019-09-24 | 2022-09-23 | 华为技术有限公司 | Communication connection method, communication connection device and storage medium |
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