The content of the invention
For deficiencies of the prior art, the present invention provides a kind of vehicle-mounted following distance inductive hint system, usesTo be sensed and reminded for front vehicle following distance near situation excessively, so as to help to alleviate driver between driving vehicle" road anger " mood, and help to reduce because of the traffic safety hidden danger that spacing is closely brought excessively between two cars.
In order to solve the above technical problems, present invention employs following technological means：
A kind of vehicle-mounted following distance inductive hint system, including vehicle-mounted following distance cue display terminal, for supplyingUser uses and sets up the mobile client of binding relationship with vehicle-mounted following distance cue display terminal, and is arranged on shiftingSystem server in dynamic communication network；The mobile client is used to communicate with system server by mobile communications network,Sent to system server and include the vehicle-mounted parameter setting request apart from inductive hint control parameter configuration information；It is described vehicle-mountedDistance perspective is performed to vehicle-mounted following distance cue display terminal to indicate apart from inductive hint control parameter configuration informationThe control parameter of prompt facility is answered to be configured；Record has mobile client to be carried with vehicle-mounted following distance in the system serverShow the binding relationship between signal display terminal, for receiving the parameter setting request from mobile client, and join to sendingNumber sets the mobile client of request to be controlled authority discriminating, after confirming that the mobile client possesses control authority, leads toCross vehicle-mounted following distance cue display terminal bound in from mobile communications network to the mobile client send with it is describedIt is vehicle-mounted apart from corresponding vehicle-mounted apart from inductive hint control of inductive hint control parameter configuration information in parameter setting requestParameter setting instruction；The vehicle-mounted following distance cue display terminal possesses distance sensing ability and cue shows energyPower, for being mounted on the rear portion of vehicle to be shown to front vehicle progress distance sensing and cue, and it passes through shiftingDynamic communication network communicates with system server, receives vehicle-mounted set apart from inductive hint control parameter from system server and refers toMake and perform corresponding control parameter and operation is set, and after completing to set operation, according to set control parameter, openingIts distance perspective is answered in the state of prompt facility, is less than preset limit according to distance sensing signal determining front vehicle following distanceWhen, perform the cue display operation that maintains safe distance.
In above-mentioned vehicle-mounted following distance inductive hint system, specifically, the vehicle-mounted following distance cue showsShow that terminal includes display module, distance detector module, mobile communication module and control process module；The display module is used forSet, shown for performing cue according to the control of control process module backward installed in the rear portion of vehicle and its display surfaceOperation；The distance detector module is used to, installed in the rear portion of vehicle, carry out distance sensing to front vehicle, and will senseDistance sensing signal transmit to control process module；The mobile communication module is used for logical according to the control of control process moduleMobile communications network is crossed to communicate with system server；The control process module is used to receive to come from by mobile communication moduleVehicle-mounted set apart from inductive hint control parameter of system server instructs and performed corresponding control parameter setting operation, and completeInto setting after operation, according to set control parameter, opening in the state of its distance perspective answers prompt facility, according to from away fromWhen distance sensing signal determining front vehicle following distance from detector module is less than preset limit, control display module is performedThe cue that maintains safe distance display operation.
In above-mentioned vehicle-mounted following distance inductive hint system, as an improvement scheme, the vehicle-mounted following distance is carriedShow that signal display terminal is also equipped with auditory tone cues ability, opening in the state of its distance perspective answers prompt facility, according to distance perspectiveWhen surveying signal determining front vehicle following distance less than preset limit, spacing warning auditory tone cues operation is also performed in the lump.
In above-mentioned vehicle-mounted following distance inductive hint system, as a kind of preferred scheme, the vehicle-mounted following distance is carriedShow that signal display terminal is being opened in the state of its distance perspective answers prompt facility, with specific reference to distance sensing signal determining rear carThe Predicated execution mode that following distance is less than preset limit is：Control set by vehicle-mounted following distance cue display terminalInclude minimum following distance threshold limit in parameter processed；Opening in the state of its distance perspective answers prompt facility, it is vehicle-mounted with carDistance prompt signal display terminal is in real time compared distance sensing signal with set minimum following distance threshold limitCompared with when the value of distance sensing signal is less than minimum following distance threshold limit, judgement front vehicle following distance is less than defaultLimitation.
In above-mentioned vehicle-mounted following distance inductive hint system, as an improvement scheme, the vehicle-mounted following distance is carriedShow that signal display terminal is additionally operable to after completing to set operation, according to set control parameter, should be carried opening its distance perspectiveIn the state of showing function, according to distance sensing signal determining after front vehicle following distance is less than preset limit State TransferringWhen square vehicle following distance is more than or equal to preset limit state, the display operation of safe distance between vehicles back-signalling is performed.
In above-mentioned vehicle-mounted following distance inductive hint system, as further improvement project, the vehicle-mounted following distanceCue display terminal is also equipped with auditory tone cues ability, is opening in the state of its distance perspective answers prompt facility, according to distanceWhen sensing signal judges that front vehicle following distance is less than preset limit, spacing warning auditory tone cues operation, root are also performed in the lumpIt is that front vehicle following distance is big to be less than preset limit State Transferring by front vehicle following distance according to distance sensing signal determiningWhen preset limit state, also perform the operation for stopping spacing warning auditory tone cues or execution spacing secure voice is carriedShow operation.
In above-mentioned vehicle-mounted following distance inductive hint system, as a kind of preferred scheme, the vehicle-mounted following distance is carriedShow that signal display terminal is being opened in the state of its distance perspective answers prompt facility, with specific reference to distance sensing signal determining by rearIt is that front vehicle following distance is more than or equal to sentencing for preset limit state that vehicle following distance, which is less than preset limit State Transferring,Determining executive mode is：Include minimum following distance in control parameter set by vehicle-mounted following distance cue display terminalThreshold limit；Opening in the state of its distance perspective answers prompt facility, vehicle-mounted following distance cue display terminal is in real timeDistance sensing signal is compared with set minimum following distance threshold limit, when distance sensing signal value by less thanThe state change of minimum following distance threshold limit be more than or equal to minimum following distance threshold limit state when, judge byIt is that front vehicle following distance is more than or equal to preset limit state that front vehicle following distance, which is less than preset limit State Transferring,.
In above-mentioned vehicle-mounted following distance inductive hint system, as a kind of preferred scheme, the vehicle-mounted following distance is carriedAt least one of show the specific setting of minimum following distance threshold limit in signal display terminal, in the following way：
Mode one：
Include in the parameter setting request that the mobile client is sent to system server and vehicle-mounted following distance is carriedShow that the value of the minimum following distance threshold limit of signal display terminal is configured vehicle-mounted apart from inductive hint control parameterConfiguration information；
The system server receive the parameter setting from mobile client ask and confirm mobile client haveAfter standby control authority, shown by the vehicle-mounted following distance cue bound in mobile communications network to the mobile clientThe vehicle-mounted following distance that terminal transmission includes the minimum following distance threshold limit value included in parameter setting request is carriedShow that control parameter sets instruction；
The vehicle-mounted following distance cue display terminal receives the vehicle-mounted following distance prompting from system serverControl parameter is set after instruction, points out control parameter to set the minimum following distance included in instruction to limit according to vehicle-mounted following distanceThe value of threshold value processed, is configured to minimum following distance threshold limit；
Mode two：
Include to indicate in the request of parameter setting that the mobile client is sent to system server to it is vehicle-mounted withCar apart from the ranging susceptibility of cue display terminal be configured it is vehicle-mounted apart from inductive hint control parameter configuration information；
Record has the corresponding minimum following distance threshold limit of multiple different ranging susceptibilitys in the system serverValue, and receiving after the parameter setting from mobile client asks and confirm that mobile client possesses control authority, lead toCross the vehicle-mounted following distance cue display terminal bound in mobile communications network to the mobile client and send and includeThe vehicle-mounted following distance of the indicated corresponding minimum following distance threshold limit value of ranging susceptibility in parameter setting requestPoint out control parameter that instruction is set；
The vehicle-mounted following distance cue display terminal receives the vehicle-mounted following distance prompting from system serverControl parameter is set after instruction, points out control parameter to set the minimum following distance included in instruction to limit according to vehicle-mounted following distanceThe value of threshold value processed, is configured to minimum following distance threshold limit；
Mode three：
The vehicle-mounted following distance cue display terminal is also equipped with the real-time acquisition capability of vehicle speed data, and is preset with carQuick change calculates proportion threshold value and minimum spacing threshold value, according to the vehicle speed data got in real time converted and to minimum following distanceThe value of threshold limit is updated；Specific update mode is that vehicle-mounted following distance cue display terminal will be obtained in real timeTo vehicle speed data be multiplied by speed conversion scale threshold value and calculate the following distance restriction reference value for obtaining current time in real time,And be compared with minimum spacing threshold value；
If the following distance restriction reference value at current time is more than or equal to minimum spacing threshold value, by current time withCar limits threshold apart from value of the restriction reference value as the minimum following distance threshold limit at current time to minimum following distanceValue is updated；
If the following distance restriction reference value at current time is less than minimum spacing threshold value, using minimum spacing threshold value as working asThe value of the minimum following distance threshold limit at preceding moment, is updated to minimum following distance threshold limit.
In above-mentioned vehicle-mounted following distance inductive hint system, a kind of further preferred scheme, the mode three are used asIn, vehicle-mounted following distance cue display terminal obtains the concrete mode of vehicle speed data, in the following way at least oneKind：
Mode 3.1：The vehicle-mounted following distance cue display terminal possesses bluetooth communication capability, by with its whereThe automobile electronic controller of vehicle carries out Bluetooth communication and the vehicle speed data of vehicle where obtaining it in real time；
Mode 3.2：The vehicle-mounted following distance cue display terminal possesses Geographic mapping ability, fixed according to itThe vehicle speed data of velocity of displacement shown in the geographical location information of position and vehicle where determining it in real time；
Mode 3.3：The mobile client possesses Geographic mapping ability, and sets up mobile visitor by system serverData communication connection between family end and display terminal, the position shown in geographical location information positioned as mobile client according to itMove speed and determine its translational speed data in real time, and translational speed data are sent extremely in real time by system server forwardingIts vehicle-mounted following distance cue display terminal bound, vehicle-mounted following distance cue display terminal will then be receivedTranslational speed data as vehicle where it vehicle speed data.
In above-mentioned vehicle-mounted following distance inductive hint system, as a kind of preferred scheme, the vehicle-mounted following distance is carriedShow that the distance perspective of signal display terminal answers specific unlatching/closing control mode of prompt facility, in the following way at leastIt is a kind of：
Mode A：
Include to indicate in the request of parameter setting that the mobile client is sent to system server to it is vehicle-mounted withCar answers prompt facility to carry out opening/closing the vehicle-mounted apart from inductive hint control of setting apart from the distance perspective of cue display terminalParameter setting information processed；
The system server receive the parameter setting from mobile client ask and confirm mobile client haveAfter standby control authority, shown by the vehicle-mounted following distance cue bound in mobile communications network to the mobile clientTerminal, which sends to include, indicates that performing distance perspective answers the vehicle-mounted apart from inductive hint control parameter of prompt facility unlatching/closing settingInstruction is set；
The vehicle-mounted following distance cue display terminal receives vehicle-mounted apart from inductive hint from system serverControl parameter is set after instruction, sets perform unlatching/shutoff operation that corresponding distance perspective answers prompt facility immediately；
Mode B：
The mobile client and vehicle-mounted following distance cue display terminal are provided with Geographic mapping ability；
The system server is preset with command range threshold value, and obtains the vehicle-mounted with spacing of mobile client and its bindingSelf-positioning geographical location information each from cue display terminal, the spacing of the two is judged according to the geographical location information of the twoIt is objective to the movement by mobile communications network during by being less than or equal to command range threshold value more than command range changes of thresholdVehicle-mounted following distance cue display terminal bound in the end of family, which sends to include, indicates that performing distance perspective answers prompt facility to openVehicle-mounted set apart from inductive hint control parameter for opening setting instructs；The spacing of the two is judged according to the geographical location information of the twoIt is objective to the movement by mobile communications network during by being more than command range threshold value less than or equal to command range changes of thresholdVehicle-mounted following distance cue display terminal bound in the end of family, which sends to include, indicates that performing distance perspective answers prompt facility to closeVehicle-mounted set apart from inductive hint control parameter for closing setting instructs；
The vehicle-mounted following distance cue display terminal receives vehicle-mounted apart from inductive hint from system serverControl parameter is set after instruction, sets perform unlatching/shutoff operation that corresponding distance perspective answers prompt facility immediately；
Mode C：
The mobile client and vehicle-mounted following distance cue display terminal are provided near field communications capability；
The vehicle-mounted following distance cue display terminal by near-field communication detect with its bind it is vehicle-mounted with carWhen distance prompt signal display terminal sets up near-field communication connection, perform distance perspective and answer the unlatching of prompt facility to operate；It is vehicle-mounted withCar detects the vehicle-mounted following distance cue bound with it by near-field communication apart from cue display terminal and shown eventuallyWhen end disconnects near-field communication connection, the shutoff operation that distance perspective answers prompt facility is performed.
Compared to prior art, the invention has the advantages that：
1st, vehicle-mounted following distance inductive hint system of the invention, car is set up by mobile communications network and system serverThe binding relationship and traffic operation between mobile client used in following distance cue display terminal and user are carried, is usedThe mobile client that family can be used is controlled to the vehicle-mounted following distance cue display terminal being mounted on vehicleThe setting of parameter processed, front vehicle is judged by vehicle-mounted following distance cue display terminal by its distance sensing ability sensingThe cue display operation that maintains safe distance is performed when following distance is less than preset limit, is reached effectively for front vehicle with spacingThe effect for being sensed and being reminded from excessively near situation, so that help to alleviate " road anger " mood of driver between driving vehicle,And help to reduce because of the traffic safety hidden danger that spacing is closely brought excessively between two cars.
2nd, vehicle-mounted following distance inductive hint system of the invention, the mobile client that user can use is to installation settingsVehicle-mounted following distance cue display terminal on vehicle is controlled by the setting of parameter, so as to avoid vehicle-mounted with spacingThe not convenient influence brought is operated on user's control from specific installation site of the cue display terminal on vehicle.
3rd, in vehicle-mounted following distance inductive hint system of the invention, vehicle-mounted following distance cue display terminal is being openedOpen in the state of its distance perspective answers prompt facility, additionally it is possible to be less than according to distance sensing signal determining by front vehicle following distanceWhen preset limit State Transferring is that front vehicle following distance is more than or equal to preset limit state, performs safe distance between vehicles and respond letterNumber display operation, to allow the driver of front vehicle to know the safe information of spacing, while also can be to front vehicle weightThe response of new holding safe distance between vehicles behavior representation courtesy, helps to promote the mutual understanding between different vehicle driver and courtesyInteraction, preferably alleviates driver " road anger " mood.
4th, in vehicle-mounted following distance inductive hint system of the invention, it is directed to vehicle-mounted following distance cue display eventuallyEnd performs the various control parameter that distance perspective answers prompt facility, can provide the setting operation format of diversity action, mobileThe setting function for the vehicle-mounted following distance cue display terminal that client can be bound to it can also be rich and varied, canMeet user operates with more demand under different application environment well, helps to lift vehicle-mounted following distance inductive hintIntelligence degree and the Consumer's Experience impression of system.
5th, how excessively near to front vehicle following distance vehicle-mounted following distance inductive hint system of the invention, be directed toThe problem of situation is sensed and reminded there is provided a set of new, effective technical solution, can help driver reduce orAvoid because of the potential safety hazard that front vehicle following distance is excessively near and is brought to oneself, and user is easy to use, vdiverse in function, skillArt realizes that difficulty is small, and application effect significantly, possesses market-oriented application prospect well.
Embodiment
The invention provides a kind of vehicle-mounted following distance inductive hint system, it is vehicle-mounted that Fig. 1 and Fig. 2 respectively illustrate the present inventionThe system architecture schematic diagram and function framework schematic diagram of following distance inductive hint system, as depicted in figs. 1 and 2, it includes carFollowing distance cue display terminal is carried, for setting up for users to use and with vehicle-mounted following distance cue display terminalThe mobile client of binding relationship, and system server in the mobile communication network is set.Wherein, mobile client is used forCommunicated by mobile communications network with system server, sent to system server and include vehicle-mounted apart from inductive hint control ginsengThe parameter setting request of number configuration information；It is described it is vehicle-mounted apart from inductive hint control parameter configuration information to indicate to it is vehicle-mounted withCar performs distance perspective apart from cue display terminal and answers the control parameter of prompt facility to be configured；Recorded in system serverThere is the binding relationship between mobile client and vehicle-mounted following distance cue display terminal, mobile client is come from for receivingThe parameter setting request at end, and authority discriminating is controlled to the mobile client for sending parameter setting request, it is described in confirmationMobile client possesses after control authority, passes through the vehicle-mounted following distance bound in mobile communications network to the mobile clientCue display terminal sends vehicle-mounted apart from inductive hint control parameter configuration information phase in being asked with the parameter settingCorresponding vehicle-mounted set apart from inductive hint control parameter instructs；Vehicle-mounted following distance cue display terminal possesses distance perspectiveSurvey ability and cue display capabilities, for being mounted on the rear portion of vehicle to carry out distance sensing and carrying to front vehicleShow that signal is shown, and it is communicated by mobile communications network with system server, receives the vehicle-mounted distance from system serverInductive hint control parameter, which is set, instructs and performs corresponding control parameter setting operation, and after completing to set operation, according toSet control parameter, is being opened in the state of its distance perspective answers prompt facility, according to distance sensing signal determining rear carWhen following distance is less than preset limit, execution maintains safe distance cue display operation.
By the vehicle-mounted following distance inductive hint system of the present invention, human pilot is as user, in its vehicle rear peaceVehicle-mounted following distance cue display terminal is put in installing, to be shown to front vehicle progress distance sensing and cue,And the mobile client used by default is entered with the vehicle-mounted following distance cue display terminal on its vehicleRow binding, then just can be asked by operating mobile client to send parameter setting, be transferred after being authenticated by system serverControl, is set to the control parameter that the progress cue of vehicle-mounted following distance cue display terminal is shown, to meetPoint out use demand；Thus since, vehicle-mounted following distance cue display terminal is after completing to set operation, according to setControl parameter, opening in the state of its distance perspective answers prompt facility, according to distance sensing signal determining to front vehicle withWhen car distance is less than preset limit, then show that front vehicle following distance is excessively near, now vehicle-mounted following distance cue is shownTerminal just performs the cue display operation that maintains safe distance, and reaches for being carried to front vehicle following distance near situation excessivelyAwake effect.Also, because the mobile client that user can use is carried to the vehicle-mounted following distance being mounted on vehicleShow that signal display terminal is controlled by the setting of parameter, even if vehicle-mounted following distance cue display terminal is arranged on vehicleSpace is more narrow and small, direct inconvenient operation position, nor affects on the use operating experience of user, thus avoid it is vehicle-mounted withSpecific installation site of the car apart from cue display terminal on vehicle operates the not convenient influence brought to user's control.
In the vehicle-mounted following distance inductive hint system of the present invention, when concrete application is realized, mobile client can be usedThe remote manipulator with mobile communications network access capability that specially designs realizes, or can also be by intelligent mobilePre-installed applications programs is realized on terminal device；For example, being direct as current technology using a kind of most easy mode of operationAPP application programs are pre-installed in the intelligent mobile terminal equipments such as the mobile phone, tablet personal computer, the notebook computer that use in user to realizeMobile client function in system.And system server then can using more ripe Internet Server technology orCloud Server technology is achieved.For vehicle-mounted following distance cue display terminal is from its structural framing, such as Fig. 3 institutesShow, should at least include display module, distance detector module, mobile communication module and control process module；Wherein, mould is shownBlock is used for the rear portion installed in vehicle and its display surface is set backward, for performing prompting letter according to the control of control process moduleNumber display operation；Distance detector module is used for installed in the rear portion of vehicle, and distance sensing is carried out to front vehicle, and will sensingTo distance sensing signal transmit to control process module；Mobile communication module is used to be passed through according to the control of control process moduleMobile communications network communicates with system server；Control process module, which is used to receive by mobile communication module, comes from system serviceVehicle-mounted set apart from inductive hint control parameter of device instructs and performed corresponding control parameter setting operation, and completes to setAfter operation, according to set control parameter, opening in the state of its distance perspective answers prompt facility, detected according to from distanceWhen the distance sensing signal determining front vehicle following distance of device module is less than preset limit, control display module, which is performed, keeps carShow and operate away from cue.Specific design for vehicle-mounted following distance cue display terminal is implemented, then can useThere is the electronic signal indicator or electronic display of distance detector module and mobile communication module to realize for special design,The pre-installed applications program in the intelligent mobile terminal equipment for possessing distance detection sensor part and mobile communication module can be passed throughTo realize, shown for being mounted on vehicle rear progress cue；Furthermore, it is desirable to it is emphasized that it is vehicle-mounted withCar can be integral type Integration Design in cue display terminal, between distance detector module and other componentsOr split-type design, by distance detector module among other components it is independent, to installed in vehicleAfterbody, with preferably to front vehicle carry out distance sensing；Meanwhile, distance detector module can use existing any oneThe device of distance sensing can be realized by planting, common such as can use infrared distance sensor, ultrasonic radar range sensorActive depth measuring device, it might even be possible to using utilizing RFID（Radio Frequency Identification, radio frequency is knownNot）Ranging technology, low-power consumption bluetooth ranging technology etc. have the device of passive ranging function, certainly, use this passive typeRanging technology is, it is necessary to by ranging object（That is front vehicle）It is also required to communication equipments such as corresponding RFID, low-power consumption bluetooths,Communication distance measuring could be realized, so using being subject to certain restrictions, but still there is applicable technical feasibility and operableProperty.In system, the movement communicated between vehicle-mounted following distance cue display terminal, mobile client and system server is led toCommunication network, can be GPRS（General Packet Radio Service, general packet radio service technology）、2G、3G、4GDeng the conventional mobile communications network based on communication base station or based on bluetooth, WiFi, RFID（Radio FrequencyIdentification, radio frequency identification）, the technology such as ZigBee ad-hoc wireless local mobile communications network, as long as energyEnough realize the mobile communication between vehicle-mounted following distance cue display terminal, mobile client and system server.
In the vehicle-mounted following distance inductive hint system of the present invention, vehicle-mounted following distance cue display terminal is performedThe specific manifestation form that the cue that maintains safe distance is shown can be various；If for example, vehicle-mounted following distance cueDisplay terminal carries out symbol prompting using simple signal lamp, then can be high by the display mode similar to traffic lightsBright display one has the icon of " maintaining safe distance " symbol, to point out front vehicle to keep safe distance between vehicles；Or, if vehicle-mounted with carDistance prompt signal display terminal carries out the display reminding of word or pattern-information using display screen, then " can be asked by displayKeep safe distance between vehicles, drive with caution, Thanks for Your Cooperation ", the similar prompt message such as " too near from me, please appropriate remote ", verySome expression, patterns of gesture class can be extremely combined, cue is shown maintain safe distance, to point out front vehicle to keepSafe distance between vehicles.
And vehicle-mounted following distance cue display terminal is being opened in the state of its distance perspective answers prompt facility, according to away fromWhen judging that front vehicle following distance is less than preset limit from sensing signal, it specifically performs the cue display behaviour that maintains safe distanceThe executive mode of work, can be multifarious.Maintained safe distance for example, vehicle-mounted following distance cue display terminal is specifically performedThe executive mode of cue display operation, can be when judging that front vehicle following distance is less than preset limit, by beingThe transfer capability of system server, the mobile visitor bound in Request System server to vehicle-mounted following distance cue display terminalFamily end sends and maintained safe distance alarm signal, and user receives Request System service again after the alarm signal that maintains safe distance of mobile clientThe relevant information that device performs the cue display operation that maintains safe distance to the transmission of vehicle-mounted following distance cue display terminal refers toOrder, but this executive mode needs user to perform manual control again according to the alarm signal that maintains safe distance from mobile clientSystem operation, not only increases the cumbersome degree of user, and also can not be to mobile client execution in user's driving conditions atOperation is managed, therefore is easily caused the prompt facility that maintains safe distance and loses practical function under many circumstances；It is used as vehicle-mounted following distanceOne kind that cue display terminal specifically performs the cue display operation that maintains safe distance preferably is carried out mode, can be vehicle-mountedInclude the prompt modes or maintain safe distance of maintaining safe distance in control parameter set by following distance cue display terminal to carryShow information；When judging that front vehicle following distance is less than preset limit, vehicle-mounted following distance cue display terminal then rootCue display operation is performed according to the set prompt modes that maintain safe distance, or according to the set prompt message that maintains safe distanceCarry out presentation of information operation so that vehicle-mounted following distance cue display terminal is judging that it is pre- that front vehicle following distance is less thanThe cue display operation that maintains safe distance can be automatically carried out during restriction according to set control parameter, is not only reducedThe manually operated trouble of user, additionally it is possible to so that the prompting of uncivil high beam usage behavior is very quick and timely.
Opened as vehicle-mounted following distance cue display terminal in the state of its distance perspective answers prompt facility, it hasBody is less than the Predicated execution mode of preset limit or various according to distance sensing signal determining front vehicle following distanceProperty.For example, vehicle-mounted following distance cue display terminal with specific reference to distance sensing signal determining front vehicle with spacingCan be from the Predicated execution mode less than preset limit, the control ginseng set by vehicle-mounted following distance cue display terminalInclude minimum following distance threshold limit in number, the specific value of minimum following distance threshold limit here, it is necessary to according toThe scope of distance detection can be realized in actual application environment and ensure that the distance value of safe driving to be set；Open in the state of its distance perspective answers prompt facility, vehicle-mounted following distance cue display terminal in real time believes distance sensingNumber it is compared with set minimum following distance threshold limit, when the value of distance sensing signal is less than minimum following distance limitDuring threshold value processed, judge that front vehicle following distance is less than preset limit, preset so as to realize and front vehicle following distance is less thanThe automatic judgement of restriction state.Wherein, minimum following distance threshold limit is shown eventually as vehicle-mounted following distance cueThe set a kind of control parameter in end, therefore, it is possible to be adjusted to minimum following distance threshold limit, to meet different makeWith the traffic safety requirement under environment and different situations.For example, in vehicle-mounted following distance cue display terminal minimum withCar apart from threshold limit specific set-up mode, at least one of in the following way：
Mode one：Include in the parameter setting request that mobile client is sent to system server to vehicle-mounted following distanceIt is vehicle-mounted apart from inductive hint control ginseng that the value of the minimum following distance threshold limit of cue display terminal is configuredNumber configuration information；System server is asked and confirms that mobile client possesses receiving the parameter setting from mobile clientAfter control authority, shown eventually by the vehicle-mounted following distance cue bound in mobile communications network to the mobile clientEnd sends the vehicle-mounted following distance prompting for including the minimum following distance threshold limit value included in parameter setting requestControl parameter sets instruction；Vehicle-mounted following distance cue display terminal receives the vehicle-mounted following distance from system serverPoint out control parameter to set after instruction, point out control parameter that the minimum included in instruction is set with spacing according to vehicle-mounted following distanceFrom the value of threshold limit, minimum following distance threshold limit is configured.Since so, user just can be moved by operatingDynamic client, the value to minimum following distance threshold limit is directly set, to meet the use demand under different situations.
Mode two：Include to indicate to vehicle-mounted in the parameter setting request that mobile client is sent to system serverVehicle-mounted set apart from inductive hint control parameter that the ranging susceptibility of following distance cue display terminal is configured is believedBreath；Record has the value of the corresponding minimum following distance threshold limit of multiple different ranging susceptibilitys in system server, andReceive the parameter setting from mobile client to ask and confirm that mobile client possesses after control authority, pass through mobile communicationVehicle-mounted following distance cue display terminal transmission bound in from network to the mobile client includes parameter setting pleaseThe vehicle-mounted following distance prompting control ginseng of the indicated corresponding minimum following distance threshold limit value of ranging susceptibility in askingNumber sets instruction；Vehicle-mounted following distance cue display terminal receives the vehicle-mounted following distance prompting control from system serverAfter parameter setting instruction processed, control parameter is pointed out to set the minimum following distance included in instruction to limit according to vehicle-mounted following distanceThe value of threshold value, is configured to minimum following distance threshold limit., just can be several conventional by pre-setting since soRanging susceptibility, the value of the different minimum following distance threshold limits of each ranging susceptibility correspondence；User just can lead toOperation mobile client is crossed, the ranging susceptibility used required for specifying just can take to minimum following distance threshold limitValue is set accordingly, to meet the use demand under different situations.
Mode three：Vehicle-mounted following distance cue display terminal is also equipped with the real-time acquisition capability of vehicle speed data, and defaultHave speed conversion scale threshold value and minimum spacing threshold value, according to the vehicle speed data got in real time converted and to minimum with carValue apart from threshold limit is updated；Specific update mode is that vehicle-mounted following distance cue display terminal will be real-timeThe vehicle speed data got be multiplied by speed conversion scale threshold value and calculate in real time obtain current time following distance limitation ginsengValue is examined, and is compared with minimum spacing threshold value；If the following distance restriction reference value at current time is more than or equal to most dollyAway from threshold value, then the taking as the minimum following distance threshold limit at current time using the following distance restriction reference value at current timeValue, is updated to minimum following distance threshold limit；If the following distance restriction reference value at current time is less than minimum spacingThe value of threshold value, the then minimum following distance threshold limit using minimum spacing threshold value as current time, to minimum following distanceThreshold limit is updated.Since so so that vehicle-mounted following distance cue display terminal can be by its vehicle speed dataAcquisition capability and conversion disposal ability, according to actual vehicle speed condition realize to minimum following distance threshold limit value fromSetting is adapted to, the intelligence degree that its distance perspective answers prompt facility is improved, the manually operated setting of user can be removed from completely mostThe trouble of small following distance threshold limit.Among these, the speed utilized during being converted according to vehicle speed data is changedCalculate proportion threshold value, its specific value scheme can according in traffic law on the safe distance between vehicles corresponding relation under different speedsRelevant regulations are set.Meanwhile, in which, vehicle-mounted following distance cue display terminal is used by obtaining in real timeTo participate in the vehicle speed data of conversion processing, can be it when the instant vehicle speed data of down-sampling or its enter line number instantlyAccording to the average speed data in the sample unit period of sampling, as long as being capable of the more actual actual vehicle speed for embodying its instantlySituation is simultaneously easy to calculating to handle.
Further, in mode three, vehicle-mounted following distance cue display terminal obtains the specific side of vehicle speed dataFormula or diversified, at least can at least one of in the following way：
Mode 3.1：Vehicle-mounted following distance cue display terminal possesses bluetooth communication capability, by with its where vehicleAutomobile electronic controller carry out the vehicle speed data of Bluetooth communication and vehicle where obtaining it in real time.Vehicle-mounted following distance prompting letterThe automobile electronic controller of number display terminal and vehicle carries out the technical implementation way of Bluetooth communication, with mobile phone in the prior art etc.Mobile terminal device is identical with the technical implementation way that the automobile electronic controller progress Bluetooth communication of vehicle is online, is to compare intoRipe technology application.
Mode 3.2：Vehicle-mounted following distance cue display terminal possesses Geographic mapping ability, according to its positioningThe vehicle speed data of velocity of displacement shown in geographical location information and vehicle where determining it in real time.By the velocity of displacement of positioningThe mode of speed is determined, just can be realized by calculation by program.
Mode 3.3：Mobile client possesses Geographic mapping ability, and sets up mobile client by system serverData communication between display terminal is connected, the displacement speed shown in the geographical location information positioned as mobile client according to itDegree and determine its translational speed data in real time, and translational speed data sent to it in real time by system server forwarding tied upFixed vehicle-mounted following distance cue display terminal, vehicle-mounted following distance cue display terminal is then by the movement receivedSpeed data as vehicle where it vehicle speed data.Which is substantially also a kind of to be determined by the velocity of displacement of positioningThe mode of speed, simply needs to use the user of mobile client in vehicle-mounted following distance cue display terminal in whichOn the vehicle at place, the velocity of displacement that could be so positioned by mobile client truly reflects vehicle-mounted following distance prompting letterThe vehicle speed data of vehicle where number display terminal.
By above-mentioned function, driver user can either be easy to using operation, be can be good at again in different applicationsIn the case of effectively pointed out for front vehicle following distance near situation excessively.Simultaneously, it is contemplated that vehicle-mounted following distance promptingThe cue of signal display terminal shows backward, the driver of vehicle where vehicle-mounted following distance cue display terminal withoutMethod observe directly its display cue and know that front vehicle has that following distance is excessively near, therefore, it is vehicle-mounted withCar can also be set up apart from cue display terminal possesses auditory tone cues ability, and the shape of prompt facility is answered opening its distance perspectiveUnder state, when being less than preset limit according to distance sensing signal determining front vehicle following distance, spacing alarming sound is also performed in the lumpSound prompting operation, warns sound come vehicle where pointing out and informing vehicle-mounted following distance cue display terminal by spacingDriver's front vehicle has that following distance is excessively near, so that driver is in the case where traffic allows, by accelerating, becomingThe counter-measure such as change trains to alleviate or avoid the security hidden trouble brought because front vehicle following distance is excessively near.
In addition, in the vehicle-mounted following distance inductive hint system of the present invention, scheme, vehicle-mounted with car as a further improvementDistance prompt signal display terminal is after completing to set operation, except performing according to distance sensing signal determining front vehicle with carPerformed when distance is less than preset limit outside the cue display operation that maintains safe distance, can also further increase new function,I.e. according to set control parameter, opening in the state of its distance perspective answers prompt facility, according to distance sensing signal determiningIt is that front vehicle following distance is more than or equal to preset limit shape to be less than preset limit State Transferring by front vehicle following distanceDuring state, the display operation of safe distance between vehicles back-signalling is performed, to allow the driver of front vehicle to know the safe information of spacing,It can also keep the response of safe distance between vehicles behavior representation courtesy again to front vehicle simultaneously, help to promote different vehicle drivingMutual understanding and courtesy between member is interactive, preferably alleviates driver " road anger " mood.It is vehicle-mounted with spacing in application implementationOpened from cue display terminal in the state of its distance perspective answers prompt facility, with specific reference to distance sensing signal determining byIt is that front vehicle following distance is more than or equal to preset limit state that front vehicle following distance, which is less than preset limit State Transferring,Predicated execution mode can be to include minimum in the control parameter set by vehicle-mounted following distance cue display terminalFollowing distance threshold limit；Opening in the state of its distance perspective answers prompt facility, vehicle-mounted following distance cue display is eventuallyDistance sensing signal is compared by end with set minimum following distance threshold limit in real time, when distance sensing signalIt is the state more than or equal to minimum following distance threshold limit to be worth by the state change less than minimum following distance threshold limitWhen, judge to be less than preset limit State Transferring by front vehicle following distance that to be that front vehicle following distance is more than or equal to defaultRestriction state.And hereafter, vehicle-mounted following distance cue display terminal specifically performs the display operation of safe distance between vehicles back-signallingExecutive mode can be to include safe distance between vehicles in the control parameter set by vehicle-mounted following distance cue display terminalResponse pattern or safe distance between vehicles echo message, are judging to be less than preset limit State Transferring by front vehicle following distance as rearWhen vehicle following distance is more than or equal to preset limit state, vehicle-mounted following distance cue display terminal is then according to setSafe distance between vehicles respond pattern and perform cue display operation, or enter row information according to set safe distance between vehicles echo messageDisplay operation.Since so so that vehicle-mounted following distance cue display terminal is judging small by front vehicle following distance, can be according to set when preset limit State Transferring is that front vehicle following distance is more than or equal to preset limit stateControl parameter is automatic, perform the display operation of safe distance between vehicles back-signalling in time, and driver's spacing of front vehicle is informed to allowSafety and the responses of courtesy is represented.Vehicle-mounted following distance cue display terminal performs what safe distance between vehicles back-signalling was shownSpecific manifestation form can be various；If for example, vehicle-mounted following distance cue display terminal uses simple signalLamp carries out symbol prompting, then can be by the display mode similar to traffic lights, and being highlighted one has " accident-free vehicleAway from ", " smiling face ", the symbol such as " courtesy gesture " icon, to represent that courtesy are responded；Or, if vehicle-mounted following distance cueDisplay terminal carries out the display reminding of word or pattern-information using display screen, then can be by showing that " spacing is safe, thanksThe similar prompt message such as your cooperation ", " thanking you to return to safe following distance ", " the civilized driving behavior for thanking you ", verySome expression, patterns of gesture class can be extremely combined, are shown to carry out safe distance between vehicles back-signalling, to represent that courtesy are responded.In the improvement project, the specific setting side of minimum following distance threshold limit in vehicle-mounted following distance cue display terminalFormula, it would however also be possible to employ aforesaid way one, mode two, mode three at least one of, to meet setting in the case of different applicationPut demand；Meanwhile, in the case where vehicle-mounted following distance cue display terminal is also equipped with auditory tone cues ability, opening itDistance perspective is answered in the state of prompt facility, default except that can be less than according to distance sensing signal determining front vehicle following distancePerformed in the lump during limitation spacing warning auditory tone cues operation outside, can also according to distance sensing signal determining by front vehicleWhen following distance is that front vehicle following distance is more than or equal to preset limit state less than preset limit State Transferring, execution stopsThe only operation of spacing warning auditory tone cues or the secure voice prompting operation of execution spacing, in order to inform car by auditory tone cuesDriver's front vehicle of vehicle has returned to safe following distance where carrying following distance cue display terminal, is driven with alleviatingThe person of sailing contributes to driver is safer stably to drive because of the mood such as uneasy, flurried that front vehicle following distance is excessively near and producesSail.
On the other hand, in the vehicle-mounted following distance inductive hint system of the present invention, vehicle-mounted following distance cue showsShow that the distance perspective of terminal answers specific unlatching/closing control mode of prompt facility or multifarious, can be according to realityThe real needs of application are controlled by the design of mode.And as preferred design implementation, vehicle-mounted following distance prompting letterThe distance perspective of number display terminal answers specific unlatching/closing control mode of prompt facility, can in the following way at leastIt is a kind of：
Mode A：Include to indicate to vehicle-mounted in the parameter setting request that mobile client is sent to system serverThe distance perspective of following distance cue display terminal answers prompt facility to carry out opening/closing the vehicle-mounted apart from inductive hint of settingControl parameter configuration information；System server is asked and confirms mobile client receiving the parameter setting from mobile clientEnd possesses after control authority, passes through the vehicle-mounted following distance cue bound in mobile communications network to the mobile clientDisplay terminal, which sends to include, indicates that performing distance perspective answers the vehicle-mounted apart from inductive hint control of prompt facility unlatching/closing settingParameter setting instruction；Vehicle-mounted following distance cue display terminal receives vehicle-mounted apart from inductive hint from system serverControl parameter is set after instruction, sets perform unlatching/shutoff operation that corresponding distance perspective answers prompt facility immediately.So withCome, can be convenient to user by operate mobile client momentarily control vehicle-mounted following distance cue display terminal away fromFrom unlatching/closed mode of inductive hint function.
Mode B：Mobile client and vehicle-mounted following distance cue display terminal are provided with Geographic mapping ability；System server is preset with command range threshold value, and it is aobvious to obtain the vehicle-mounted following distance cue of mobile client and its bindingShow each self-positioning geographical location information of terminal, according to the geographical location information of the two judge the spacing of the two by more than control away fromDuring from changes of threshold for less than or equal to command range threshold value, by bound in mobile communications network to the mobile clientVehicle-mounted following distance cue display terminal, which sends to include, indicates that performing distance perspective answers prompt facility to open the vehicle-mounted of settingSet and instruct apart from inductive hint control parameter；According to the geographical location information of the two judge the spacing of the two by less than or equal toWhen command range changes of threshold is more than command range threshold value, by bound in mobile communications network to the mobile clientVehicle-mounted following distance cue display terminal, which sends to include, indicates that performing distance perspective answers prompt facility to close the vehicle-mounted of settingSet and instruct apart from inductive hint control parameter；Vehicle-mounted following distance cue display terminal is received from system serverIt is vehicle-mounted to be set apart from inductive hint control parameter after instruction, set immediately perform corresponding distance perspective answer the unlatching of prompt facility/Shutoff operation.Herein, whether the predetermined command range threshold value of system is exactly the user for judging mobile client in carJudgment standard where carrying display terminal on vehicle, it is contemplated that the judgment principle and existing Geographic mapping technology may be depositedError, the predetermined command range threshold value of system, which can contemplate, is set as 1 ~ 5 meter.Since so, as long as human pilot userThe vehicle that mobile client climbs up the vehicle-mounted following distance cue display terminal for being provided with its binding is carried, just can beSystem server is recognized, and is automatically controlled vehicle-mounted following distance cue display terminal and opened distance perspective and answer prompt facility, andWhen human pilot user carries the vehicle where mobile client leaves vehicle-mounted following distance cue display terminal, systemServer can also be recognized and automatically control vehicle-mounted following distance cue display terminal and be closed apart from inductive hint work(Can, realize that distance perspective answers the intelligentized control method of prompt facility unlatching/closing.
Mode C：Mobile client and vehicle-mounted following distance cue display terminal are provided near field communications capability, hereThe near-field communication technology applied, can be it is commonly used in the prior art based on the technologies such as WiFi, RFID, ZigBee set up fromHoc Wireless Local Area Network network near-field communication technology or more emerging low-power consumption bluetooth, NFC（Near FieldCommunication, near-field communication）The near-field communication technology realized etc. radio communication；Vehicle-mounted following distance cue is shownTerminal is set up near-field communication by the vehicle-mounted following distance cue display terminal that near-field communication is detected with it is bound and is connectedWhen, perform distance perspective and answer the unlatching of prompt facility to operate；Vehicle-mounted following distance cue display terminal is examined by near-field communicationWhen measuring the vehicle-mounted following distance cue display terminal bound with it and disconnecting near-field communication and be connected, execution is apart from inductive hintThe shutoff operation of function.Such implementation, is close in user experience with mode B, i.e. human pilot user takesTape movement client is carried close to the vehicle where the vehicle-mounted following distance cue display terminal that it is bound, vehicle-mounted following distanceShow that signal display terminal opens distance perspective and answers prompt facility just to be automatically turned on, and when human pilot user carries mobile clientWhen leaving the vehicle where vehicle-mounted following distance cue display terminal, vehicle-mounted following distance cue display terminal is openedDistance perspective answers prompt facility then to close automatically, but with mode B except that, in this implementation, mobile client and vehicle-mountedFollowing distance cue display terminal is communicated without mobile communications network with system server, without byThe processing of system server, it becomes possible to realize that distance perspective answers the intelligentized control method of prompt facility unlatching/closing, use is more squareJust, application scenario is more flexible.
In the vehicle-mounted following distance inductive hint system of the present invention, it is vehicle-mounted with spacing that mobile client can be bound to itSetting function from cue display terminal can also be diversified.For example, mobile client is sent to system serverParameter setting request in, it is indicated in the vehicle-mounted control parameter configuration information apart from inductive hint that vehicle-mounted following distance is pointed outThe control parameter being configured of signal display terminal, the prompting that can include vehicle-mounted following distance cue display terminal is believedNumber display brightness, minimum following distance threshold limit, the prompt modes that maintain safe distance, safe distance between vehicles responds pattern, maintaining safe distance carriesWhen showing that information, safe distance between vehicles echo message, distance perspective answer the prompt facility unlatching/closing, distance perspective to answer the prompt facility to automatically turn onBetween, distance perspective answer one or more of control parameter among the prompt facility automatic shut-in time.It is, of course, also possible to should according to differencePrompt facility in the case of needs and actual user's demand, more control parameter the setting there is provided more horn of plenty of increase designPut function.
In summary, vehicle-mounted following distance inductive hint system of the invention, by mobile communications network and system serviceBinding relationship and lead to that device is set up between mobile client used in vehicle-mounted following distance cue display terminal and userLetter operation, the mobile client that user can use is shown eventually to the vehicle-mounted following distance cue being mounted on vehicleEnd is controlled by the setting of parameter, it is to avoid specific installation site of the vehicle-mounted following distance cue display terminal on vehicleThe not convenient influence brought is operated on user's control, by vehicle-mounted following distance cue display terminal by its distance sensingAbility sensing judges to perform the cue display operation that maintains safe distance when front vehicle following distance is less than preset limit, and reaching hasThe effect that effect is sensed and reminded for front vehicle following distance near situation excessively, so that between helping to alleviate driving vehicle" road anger " mood of driver, and help to reduce because of the traffic safety hidden danger that spacing is closely brought excessively between two cars；Also, it is vehicle-mountedFollowing distance cue display terminal is being opened in the state of its distance perspective answers prompt facility, additionally it is possible to believed according to distance sensingNumber judge to be less than preset limit State Transferring by front vehicle following distance that to be that front vehicle following distance is more than or equal to defaultDuring restriction state, the display operation of safe distance between vehicles back-signalling is performed, to allow the driver of front vehicle to know spacing safetyInformation, while also front vehicle can be kept again the response of safe distance between vehicles behavior representation courtesy, help to promote differentMutual understanding and courtesy between vehicle driver is interactive, preferably alleviates driver " road anger " mood；Meanwhile, it is directed in systemThe various control parameter that distance perspective answers prompt facility is performed in vehicle-mounted following distance cue display terminal, can be provided manyThe setting operation format of sample mode, the vehicle-mounted following distance cue display terminal that mobile client can be bound to itSet function also rich and varied, can be good at meeting user and operate with more demand under different application environment, contribute toLift intelligence degree and the Consumer's Experience impression of vehicle-mounted following distance inductive hint system.It can be seen that, of the invention is vehicle-mountedHow following distance inductive hint system, be directed to asking that front vehicle following distance near situation excessively is sensed and remindedInscribe there is provided a set of new, effective technical solution, driver can be helped to be reduced or avoided because of front vehicle following distancePotential safety hazard that is near and being brought to oneself is crossed, and user is easy to use, and vdiverse in function, technology realizes that difficulty is small, application effectSignificantly, possesses market-oriented application prospect well.
Finally illustrate, the above embodiments are merely illustrative of the technical solutions of the present invention and it is unrestricted, although with reference to realityExample is applied the present invention is described in detail, it will be understood by those within the art that, can be to technical side of the inventionCase is modified or equivalent substitution, and without departing from the objective and scope of technical solution of the present invention, it all should cover in the present inventionRight among.