Embodiment
The embodiment of the present invention is described in detail below in conjunction with accompanying drawing.It should be appreciated that this place is retouchedThe embodiment stated is merely to illustrate and explain the present invention, and is not intended to limit the invention.
Fig. 1 is according to an embodiment of the present invention for preventing by the structured flowchart of the device of rear-end collision.Such as Fig. 1It is shown, in one embodiment of the present invention, there is provided a kind of device for being used to prevent that automobile from being knocked into the back, the device can includeProcessor 10, processor 10 may be configured to：
Receive the velocity information and positional information of automobile；
Detect the transport condition of automobile；
In the case where detecting that automobile is in dangerous transport condition, status information is generated, shape is transmitted to remote service endState information or broadcasting status messages, the dangerous transport condition of status information instruction at least automobile.
In a preferred embodiment of the invention, the device for preventing automobile from being knocked into the back can also include positioner 11With transmitter 12, positioner 11 is used for the velocity information and positional information for obtaining automobile, and sends processor 10 to；Processor10 can be further configured to by transmitter 12 to remote service end transferring status data or broadcasting status messages.
Wherein, the dangerous transport condition of automobile can include slowly at least one of traveling, anxious deceleration and illegal parking,Slowly traveling can be defined as minimum speed of the speed less than track permission where it of automobile, and anxious slow down can be defined asThe speed reduction speed of automobile is more than speed change threshold.The illegal parking state of automobile can for example be believed according to the speed of automobileCease with positional information to judge.Detecting that the velocity information of automobile is zero or when the positional information of automobile does not change, sentencingCar of cutting steam is in halted state；It may determine that whether automobile is parked in non-parking spot in violation of rules and regulations according to the positional information of automobile.
The velocity information of automobile can be obtained in several ways, such as the velocity information of automobile can also be passed by speedSensor obtains, and can also be obtained jointly by alignment system 11 and velocity sensor.It is fixed that alignment system 11 may, for example, be the whole worldPosition system GPS or big-dipper satellite alignment system BDS in or other be similarly used for determine position device.
The minimum speed that track where automobile allows can for example be obtained by GPS navigation, can also be in the following mannerObtain：Camera is installed in the headstock of automobile, for being taken pictures to the speed limit direction board of road on both sides of the road, then identified by processorSpeed-limiting messages on speed limit direction board obtain the minimum speed of track permission.
In a preferred embodiment of the invention, judging whether automobile occurs the speed change threshold that suddenly slows down for example can be withFor 60km/h/s.
Processor 10 can be general processor, application specific processor, conventional processors, digital signal processor (DSP), moreIndividual microprocessor, the one or more microprocessors associated with DSP core, controller, microcontroller, application specific integrated circuit(ASIC), field programmable gate array (FPGA) circuit, other any kind of integrated circuit (IC), state machines etc..
During the location of automobile difference (as positioned at expressway and off-highway), the dangerous transport condition of automobile is pointed toDanger coefficient caused by the automobile at its rear is different.Therefore in one embodiment of the present invention, processor 10 can also enter oneStep is configured to judge that the road of running car is expressway or off-highway.
In the case where the road for judging running car is expressway, dangerous transport condition can for example be included in expresswayUpper slowly traveling, suddenly slow down and on expressway in violation of rules and regulations at least one of non-parking spot parking；Judging running carRoad be off-highway in the case of, dangerous transport condition includes anxious slow down.
In one embodiment of the present invention, such as it can judge that automobile is to be located at expressway also right and wrong in the following waysExpressway：Camera is installed in the headstock of automobile, for being taken pictures to the speed limit direction board of road on both sides of the road, then known by processorSpeed-limiting messages on other speed limit direction board judge track residing for automobile for highway or non-freeway.
In another embodiment of the present invention, such as it can judge that automobile is to be located at expressway in the following waysOr off-highway：The positional information of automobile is obtained according to alignment system, by processor by positional information and map maps, fromAnd it is highway or non-freeway to determine track residing for automobile.
The dangerous transport condition of automobile can also for example include bringing to a halt.Automobile is when running at a low speed, even if automobile emergency subtractsSpeed is brought to a halt, and the vehicle at its rear also has the enough reaction time, and rear-end collision is avoided to take appropriate measuresOccur.Such as it can judge whether automobile suddenly slows down or bring to a halt in the following ways：
Whether the speed of detection automobile is more than threshold speed；
Whether the velocity variations speed that automobile is detected in the case where the speed for judging automobile is more than threshold speed is more than speedSpend change threshold；
Judge that automobile emergency slows down in the case where the velocity variations speed of automobile is more than velocity variations threshold value；
In the case where judging that automobile emergency slows down, judge whether the speed of automobile is reduced to zero；
Judge that automobile emergency brakes in the case where the speed for judging automobile is reduced to zero.
Wherein, the threshold speed of automobile for example can be 120km/h, and the velocity variations threshold value of automobile for example can be60km/h/s。
Fig. 2 is according to an embodiment of the present invention for preventing by the structured flowchart of the device of rear-end collision.Such as Fig. 2It is shown, in another embodiment of the present invention, there is provided a kind of device for being used to prevent rear-end collision, the device can includeProcessor 20, processor 20 may be configured to：
From remote service end or neighbouring automobile receiver status information, status information can indicate the dangerous traveling of neighbouring automobileState；
Give a warning information in the case where receiving status information.
In a preferred embodiment of the invention, for preventing the device of rear-end collision from can also include receiver 21, locateReason device 20 can be configured to by receiver 21 from remote service end or neighbouring automobile receiver status information.
In the Additional embodiments of the present invention, device can also include：
Display device 22, for display status information；And/or
Sound broadcasting device 23, status information is reported for broadcasting.
When being located at same track with neighbouring automobile due to the automobile where there was only device, the dangerous transport condition of neighbouring automobileThe generation for causing rear-end collision is possible to, therefore in a preferred embodiment of the invention, status information also can indicate that attachedThe position of nearly automobile, device can also include：
Alignment system 24, the position for the automobile where determining device；
Processor can also be further configured to：
According to automobile near the position judgment of the position of neighbouring automobile and automobile whether in the front of automobile；And
Give a warning information in the case where judging front of the automobile in automobile nearby.
The positional information of automobile where device can for example be obtained by alignment system.Neighbouring automobile can be defined asIt is less than the automobile of preset distance with the spacing of the automobile where device, preset distance for example can be 0.5km or 1km.Neighbouring vapourCar can, for example, be that neighbouring automobile is located on same track with the automobile where device in the front of automobile.
Fig. 3 is the structured flowchart for being used to prevent the system of rear-end collision according to an embodiment of the present invention.Such as Fig. 3 institutesShow, in one embodiment of the present invention, there is provided a kind of system for preventing rear-end collision, the system can include：
First mobile device 30, may be configured to：
Obtain the velocity information and positional information of the first automobile；
Detect the transport condition of the first automobile；
In the case where detecting that the first automobile is in dangerous transport condition, to remote service end transferring status data, shapeThe dangerous transport condition of state information instruction at least the first automobile and the position of the first automobile；
Wherein, the dangerous transport condition of the first automobile can be included in slowly traveling, anxious deceleration and illegal parking at leastOne；Slowly traveling can be defined as minimum speed of the speed less than track permission where it of the first automobile, and anxious slow down canIt is more than speed change threshold to be defined as the speed reduction speed of the first automobile.
Remote service end 40, may be configured to：
Receiving status information；
Status information is sent to the preset range associated with the position of the first automobile；And
Second mobile device 50, may be configured to：
From remote service end receiving status information when within a predetermined range；
Give a warning information in the case where receiving status information.
First mobile device 30 can for example include first processor and the first positioner, and the second mobile device 50 is for exampleSecond processor and the second positioner can be included, the first mobile device 30 and the second mobile device 50 may, for example, be mobile phoneOr tablet personal computer or vehicle device or other similar devices.
The velocity information and positional information of first automobile can for example use the velocity information of automobile in above-mentioned embodimentObtained with the acquisition modes of positional information, the judgment principle or mode whether same first automobile suddenly slows down can also use upperJudgment principle or mode that automobile emergency in embodiment slows down are stated to judge, here is omitted.
When the location of the first automobile difference (as positioned at highway and non-freeway), the danger of the first automobileDanger coefficient caused by transport condition is pointed to the automobile at its rear is different.In a preferred embodiment of the invention, first moveDynamic equipment 30 can be configured to：
The road for judging the first running car is expressway or off-highway；
In the case where the road for detecting the first running car is expressway, the transport condition of the first automobile is detected.
Wherein in the case of expressway, dangerous transport condition can be included on expressway slowly traveling, it is anxious slow down andIn violation of rules and regulations at least one of non-parking spot parking on expressway；
In the case of off-highway, dangerous transport condition can include anxious slow down.
The road of first running car is that the judgment mode of expressway or off-highway can use above-mentioned embodimentThe road of middle judgement running car is the mode of expressway or off-highway, and here is omitted.
When spacing only between the second automobile and the first automobile is less than predetermined spacing, the second automobile is first in other wordsWhen in the preset range of automobile, the first automobile or the second automobile are possible to that rear-end collision occurs, and in this case, are just necessaryThe status information of the first automobile is sent to the second automobile, it is alerted and takes necessary brake measure, prevent the generation of rear-end collision.Therefore in one embodiment of the present invention, the second mobile device 50 can be configured to：
Obtain the position of the second automobile；
The position of second automobile is sent to remote service end 40；
Remote service end 40 can be configured to：
Obtain the position of the second automobile；
Judge the second automobile whether within a predetermined range；
In the case where judging the second automobile within a predetermined range status information is sent to the second mobile device 30.
Wherein the position of the second automobile can for example be obtained by alignment system.Preset range for example can be the first automobileRegion below.
In another embodiment of the present invention, the second mobile device 50 can be configured to：
Obtain the position of the second automobile；
The position of the first automobile indicated according to status information and the automobile of position judgment first of the second automobile obtained areIt is no in the front of the second automobile；
And judging that the first automobile gives a warning information in the case of the front of the second automobile.
When automobile or the first automobile are in different dangerous transport conditions, the danger coefficient to the automobile at its rear is different's.Warning message in any of the above-described embodiment can include the first warning message, the second warning message and the 3rd warning letterOne of breath, when status information indicates the slow traveling in automobile or the first vehicle hazard transport condition, processor or theThe warning message that two mobile devices are sent is the first warning message, and the first warning message may, for example, be " the slow row of front vehiclesSail, it is noted that slow down to maintain safe distance "；When status information indicates bringing to a halt in automobile or the first vehicle hazard transport conditionWhen, the warning message that processor or the second mobile device are sent is the second warning message, and the second warning message may, for example, be " precedingSquare vehicle suddenly slows down, it is noted that maintains safe distance "；When status information indicates the parking in automobile or the first vehicle hazard transport conditionWhen, the warning message that processor or the second mobile device are sent is the 3rd warning message, and the 3rd warning message may, for example, be " precedingThere is stopping vehicle side, it is noted that ".
In a preferred embodiment of the invention, status information also can indicate that the car between the first automobile and the second automobileAway from the second mobile device 50 can be configured to：
Status information is reported in display, then or reports the status information while display status information.
The frequency for reporting status information determines according to the spacing between the first automobile and the second automobile, such as spacing is smaller,It is higher to report frequency.After the spacing between the second automobile and the first automobile exceedes preset range, stop reporting.When the second automobileAfter spacing between the first automobile exceedes preset range, such as it can also no longer show the status information of the first automobile.
For the automobile in dangerous transport condition, Fig. 4 is according to an embodiment of the present invention for preventing automobileThe flow chart of the method to be knocked into the back, as shown in figure 4, one embodiment of the present invention, there is provided one kind is used to prevent that automobile from being chased afterThe method of tail, may comprise steps of：
In step s 11, the velocity information and positional information of automobile are obtained；
In step s 12, the transport condition of automobile is detected；
In step s 13, in the case where detecting that automobile is in dangerous transport condition, state is transmitted to remote service endInformation or broadcasting status messages, the dangerous transport condition of status information instruction at least automobile.
The velocity information and positional information of automobile can obtain in several ways, such as the velocity information of automobile can lead toThe acquisition of at least one of speedometer of alignment system, velocity sensor and automobile is crossed, the positional information of automobile can for example lead toCross alignment system acquisition.
During the location of automobile difference (as positioned at expressway and off-highway), the dangerous transport condition of automobile is pointed toDanger coefficient caused by the automobile at its rear is different.As shown in figure 5, in the preferred embodiment of the present invention, for preventingThe method that automobile is knocked into the back can also comprise the following steps：
In the step s 21, the road for judging running car is expressway or off-highway；
In the case where the road for judging running car is expressway, the transport condition of automobile is detected.
Even if anxious when being run at a low speed due to automobile slowed down or brought to a halt, its front vehicle also has the enough reaction time to adoptCorresponding brake measure is taken, so as to avoid the generation of rear-end collision.Therefore as shown in fig. 6, being preferable to carry out in the another of the present inventionIn mode, the method for preventing automobile from being knocked into the back can also comprise the following steps：
In step S31, whether the speed for detecting automobile is more than threshold speed；
In the case where the speed for judging automobile is more than threshold speed, whether detection automobile suddenly slows down.
For the automobile that may be knocked into the back with the automobile in dangerous transport condition, Fig. 7 is real according to of the invention oneThe flow chart for being used to prevent the method for rear-end collision of mode is applied, as shown in fig. 7, one embodiment of the present invention, there is provided oneKind is used for the method for preventing rear-end collision, may comprise steps of：
In step S41, from remote service end or neighbouring automobile receiver status information, status information can indicate vapour nearbyThe dangerous transport condition of car；
In step S42, give a warning information in the case where receiving status information.
Warning message for example can be sent by warning device, and warning device for example can be alarm.
When being located at same track with neighbouring automobile due to the automobile where there was only device, the dangerous transport condition of neighbouring automobileBe possible to the generation for causing rear-end collision.Therefore as shown in figure 8, one embodiment of the present invention, there is provided one kind is used to preventThe only method of rear-end collision, this method can also comprise the following steps：
In step s 51, the position of the automobile where determining device；
In step S52, according to automobile near the position judgment of the position of neighbouring automobile and automobile whether before automobileSide；And
In step S53, give a warning information in the case where judging front of the automobile in automobile nearby.
The positional information of automobile where device can for example be obtained by alignment system.Neighbouring automobile can be defined asIt is less than the automobile of preset distance with the spacing of the automobile where device, preset distance for example can be 0.5km or 1km.Neighbouring vapourCar can, for example, be that neighbouring automobile is located on same track with the automobile where device in the front of automobile.
Fig. 9 is the flow chart for being used to prevent the method for rear-end collision according to an embodiment of the present invention, such as Fig. 9 institutesShow, one embodiment of the present invention, there is provided a kind of method for preventing rear-end collision, may comprise steps of：
In step S61, the velocity information and positional information of the first automobile are obtained；
In step S62, the transport condition of the first automobile is detected；
In step S63, in the case where detecting that the first automobile is in dangerous transport condition, transmitted to remote service endStatus information, the dangerous transport condition of status information instruction at least the first automobile and the position of the first automobile；
In step S64, remote service end receiving status information；
Status information is sent to the preset range associated with the position of the first automobile；
In step S65, from remote service end receiving status information when within a predetermined range；
In step S66, give a warning information in the case where receiving status information.
During the location of the first automobile difference (as positioned at expressway and off-highway), the dangerous traveling shape of the first automobileDanger coefficient caused by state is pointed to the automobile at its rear is different.As shown in Figure 10, in a preferred embodiment of the invention, useIt can also comprise the following steps in preventing the method for rear-end collision：
In step S71, the road for judging the first running car is expressway or off-highway；
In the case where the road for judging the first running car is expressway, the transport condition of the first automobile is detected.
When spacing only between the second automobile and the first automobile is less than predetermined spacing, the second automobile is first in other wordsWhen in the preset range of automobile, the first automobile or the second automobile are possible to that rear-end collision occurs, and in this case, are just necessaryThe status information of the first automobile is sent to the second automobile, it is alerted and takes necessary brake measure, prevent the generation of rear-end collision.Therefore as shown in figure 11, in one embodiment of the present invention, for preventing the method for rear-end collision from can also include
In step S81, the position of the second automobile is obtained；
The position of second automobile is sent to remote service end；
In step S82, judge the second automobile whether within a predetermined range；
In step S83, state is sent to the second mobile device in the case where judging the second automobile within a predetermined rangeInformation.
Wherein the position of the second automobile can for example be obtained by alignment system.Preset range for example can be the first automobileRegion below.
Figure 12 is the flow chart for being used to prevent the method for rear-end collision according to an embodiment of the present invention, such as Figure 12 institutesShow, in another embodiment of the present invention, for preventing the method for rear-end collision from can also include：
In step S91, the position of the second automobile is obtained；
In step S92, the position of the position of the first automobile indicated according to status information and the second automobile obtained is sentencedWhether disconnected first automobile is in the front of the second automobile；
In step S93, judging that the first automobile gives a warning information in the case of the front of the second automobile.
The method for being used to prevent rear-end collision in above-mentioned embodiment can be by being used to prevent in above-mentioned embodimentThe device of rear-end collision or system perform.
In an embodiment of the invention, there is provided a kind of computer-readable recording medium, on the storage mediumBe stored with instruction, when the instruction is executed by processor so that in the computing device any of the above embodiment be used for prevent vapourThe method that car knocks into the back.
Such as the A automobiles and B automobiles travelled in the same direction on a highway, A automobiles are located at the front of B automobiles, if A automobilesAnxious for some reason to slow down, then the first mobile device on A automobiles can be believed the anxious deceleration of A automobiles and position the very first timeBreath is sent to remote service end, and automobile of the remote service end into preset range sends the status information of A automobiles, when installed in BThe second mobile device on automobile receives instruction A automobile emergencies deceleration regime, A automobile positions and the AB two of remote service end transmissionAfter the status information of automobile distance, the status information is reported by sound broadcasting device and alerts B automobiles and takes corresponding replyMeasure, at the same display device (such as navigation map) can show A automobiles position and the spacings of the automobiles of AB two (such as A automobiles are in mapUpper shown in red, B automobiles are shown as blueness on map).Stop reporting when B automotive safeties are more than A automobiles, show simultaneouslyShow that the picture of the spacing of A automobile positions and the automobiles of AB two is cancelled automatically on device.
For another example, what is travelled in the same direction on a highway also has D automobiles, and D automobiles are located at the rear of B automobiles, and B automobiles are connecingWhile receiving the status information of A automobiles, the B automobiles status informations of itself is sent to remote service end, remote service end is by BThe status informations such as the spacing of the position of automobile, speed and the automobiles of BD two are sent to D automobiles, and the mobile device of D automobiles is according to B vapourThe status information of car judges whether that needs make corresponding counter-measure, to avoid sending rear-end collision with B automobiles.
The position that alignment system acquisition automobile is passed through by above-mentioned embodiment, device or system for preventing rear-end collisionConfidence ceases, and not only accuracy is high and not by adverse weather conditions, can be when automobile is in dangerous transport condition in time to thereafterSquare vehicle gives a warning information, greatly reduces the probability of happening of rear-end collision collision accident.
The preferred embodiment of the present invention is described in detail above in association with accompanying drawing, still, the present invention is not limited to above-mentioned realityThe detail in mode is applied, in the range of the technology design of the present invention, a variety of letters can be carried out to technical schemeMonotropic type, these simple variants belong to protection scope of the present invention.It is further to note that in above-mentioned embodimentDescribed in each particular technique feature, in the case of reconcilable, can by any suitable means be combined, beUnnecessary repetition is avoided, the present invention no longer separately illustrates to various combinations of possible ways.
In addition, various embodiments of the present invention can be combined randomly, as long as it is without prejudice to originallyThe thought of invention, it should equally be considered as content disclosed in this invention.