CN106394395B - Automobile enabling anti-collision early warning method and system - Google Patents
Automobile enabling anti-collision early warning method and system Download PDFInfo
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- CN106394395B CN106394395B CN201510458621.9A CN201510458621A CN106394395B CN 106394395 B CN106394395 B CN 106394395B CN 201510458621 A CN201510458621 A CN 201510458621A CN 106394395 B CN106394395 B CN 106394395B
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Abstract
The present invention provides a kind of automobile enabling anti-collision early warning method and system, which comprises passes through personnel and vehicle-mounted detector outside the vehicle in carborne detector detection movement and detects car door opening signal；When detecting outside vehicle personnel close to certain side car door, and detect that occupant is opening the side car door；Enabling alarm signal is projected into default view field.Enabling anti-collision early warning method provided by the invention and system can run at high speed to rear in personnel reserve the sufficient judgement time, to improve the accuracy that behind personnel judge car door opening.
Description
Technical field
The present invention relates to technical field of automotive electronics, in particular to a kind of automobile enabling anti-collision early warning method and
System.
Background technique
With the improvement of living standards, the quantity of motor vehicles is also more and more, every household has vehicle, people substantially
The tool gone on a journey also from modes such as bicycle, walkings, become automobile gradually.The trip of automobile is brought to people's lives
Very big convenience not only saves the time of people, alleviates the burden of people's trip, but the appearance of vehicle but increases friendship
The generation of interpreter's event.
Vehicle parking is in roadside, and the vehicle often passed through to attachment when driver gets off affects, especially
In the case where darkness or other bad visibilities.When the driver of parked vehicles or passenger, which open the door, to get off, side rear warp
The other vehicles or pedestrians crossed be easy not see or without noticing of parked vehicles car door opening to collide etc
Traffic accident.Oneself it can only often pay attention to by driver or passenger when getting off in actual life.
Chinese patent Authorization Notice No. CN204077508U provides a kind of car door opening prompting device comprising is set to car
Programmable controller and power supply device, be set to door outside voice playing device and projection display lamp, be set to car door
With the angle measurement unit of vehicle body junction, the power supply device is connected with programmable controller, and programmable controller also divides
Other voice playing device, projection display lamp, angle measurement unit are connected.The car door opening prompting device that the patent provides is to pass through
Angle measurement unit measures opening signal；After vehicle parking, when driver or passenger getting off car open car door, broadcast by voice
It puts device and plays phonetic warning, light prompt region is shown in projection responding to projection display lamp on ground on the outside of the vehicle body, after reminding side
Square vehicular traffic pays attention to.
For existing automobile enabling anti-collision early warning technology, industry expectation can be higher with design accuracy, and effect is more preferable
Anti-collision early warning reminding method.
Summary of the invention
In view of the above technical problems, the present invention provides a kind of automobile enabling anti-collision early warning method, can give rear high speed
Personnel in traveling reserve the sufficient judgement time, to improve the accuracy that behind personnel judge car door opening.
To achieve the above object, the present invention provides a kind of automobile enabling anti-collision early warning methods, comprising: passes through vehicle-mounted spy
The outer personnel of vehicle and vehicle-mounted detector surveyed in device detection movement detect car door opening signal；When detecting the outer personnel of vehicle
Close to certain side car door, also, detect that occupant prepares to open the side car door；It is projected out on the road surface near the side car door
It opens the door and warns region.
Further, when judging that the relative distance is gradually reduced, and meet following either condition, determine vehicle
Outer personnel are close to the state Rule of judgment of certain side car door: detecting the outer personnel of the vehicle and entered in prewarning area；Or, detection
Personnel have entered in the drop shadow spread in warning region of opening the door outside to the vehicle.
Further, when detecting following situation for the moment, prepare to open the dynamic of the side car door as determining occupant
Make Rule of judgment: detecting that gear information is neutral gear；Detect that gear information is park position；When detecting that gear information is low-grade
It is being braked；Detect that wheel speed information is less than predetermined speed per hour；Detect that central controlled lock has been opened；Or, detecting certain side car door
The unlatching of lock is triggered.
Further, enabling warning region is projected out on the road surface near the side car door, comprising: detect outside the vehicle
Relative distance between personnel and automobile；Determine the security level of the relative distance；Not to the configuration of different types of security level
Same display color；Enabling warning region is projected out with the display color of configuration in warning region of opening the door.
Further, the road surface near the described side car door includes: the side and/or side rear of the side car door.
Further, the enabling warns region, comprising: ray regions；Or, visual image or symbol.
Further, the automobile enabling anti-collision early warning method further include: when being projected out enabling warning region, to vehicle
Interior personnel issue early warning sound or are prompted by the flashing of tailstock signal lamp, give personnel outside vehicle to the vehicle close to information alert
Interior personnel.
The present invention provides a kind of automobile enabling anti-collision early warning systems, comprising: detector, for detecting the vehicle in movement
The driving status of outer personnel；Detector, for detecting car door opening signal；Projector, for generating warning of opening the door on road surface
Region；Microcontroller for the information that pick-up probe and detector are sent, and works as and receives the outer personnel of vehicle close to certain
When side car door and occupant prepare the unlatching side car door, it is sent on the road surface near the side car door and is projected out out to projector
Police guard at as entrance shows the instruction in region.
Further, the projector is arranged on the chassis below car door.
Automobile enabling anti-collision early warning method provided by the invention and system, by personnel's driving status outside probe vehicles and in advance
Estimate occupant's door opening action, the time of projection prompt is shifted to an earlier date significantly, can just be visualized before car door opening
Visual cues, thus to rear run at high speed in personnel reserve the sufficient judgement time, to improve behind personnel couple
The accuracy that car door opening is judged.
The additional aspect of the present invention and advantage will be set forth in part in the description, these will become from the following description
Obviously, or practice through the invention is recognized.
Detailed description of the invention
The drawings described herein are used to provide a further understanding of the present invention, constitutes part of this application, this hair
Bright illustrative embodiments and their description are used to explain the present invention, and are not constituted improper limitations of the present invention.In the accompanying drawings:
Fig. 1 is the comparison schematic diagram of four kinds of distance parameters of the present invention；
Fig. 2 is the flow diagram of the enabling anti-collision early warning method of one embodiment of the invention；
Fig. 3 is the application scenarios schematic diagram of the enabling anti-collision early warning method of one embodiment of the invention；
Fig. 4 is the hardware module schematic diagram of the enabling anti-collision early warning system of one embodiment of the invention.
Specific embodiment
Technical solution in order to enable those skilled in the art to better understand the present invention, with reference to the accompanying drawing and specific embodiment party
Present invention is further described in detail for formula.Embodiments of the present invention are described in more detail below, the embodiment is shown
Example is shown in the accompanying drawings, and in which the same or similar labels are throughly indicated same or similar element or has identical or class
Like the element of function.It is exemplary below with reference to the embodiment of attached drawing description, for explaining only the invention, and cannot
It is construed to limitation of the present invention.
Those skilled in the art of the present technique are appreciated that unless expressly stated, singular " one " used herein, " one
It is a ", " described " and "the" may also comprise plural form.It is to be further understood that being arranged used in specification of the invention
Diction " comprising " refer to that there are the feature, integer, step, operation, element and/or component, but it is not excluded that in the presence of or addition
Other one or more features, integer, step, operation, element, component and/or their group.It should be understood that when we claim member
Part is " connected " or when " coupled " to another element, it can be directly connected or coupled to other elements, or there may also be
Intermediary element.In addition, " connection " used herein or " coupling " may include being wirelessly connected or coupling.Wording used herein
"and/or" includes one or more associated any cells for listing item and all combinations.
Those skilled in the art of the present technique are appreciated that unless otherwise defined, all terms used herein (including technology art
Language and scientific term) there is meaning identical with the general understanding of those of ordinary skill in fields of the present invention.Should also
Understand, those terms such as defined in the general dictionary, which should be understood that, to be had and the meaning in the context of the prior art
The consistent meaning of justice, and unless defined as here, it will not be explained in an idealized or overly formal meaning.
It is tested by a large amount of analysis of cases and scrnario testing, the discovery of the invention, these existing technical sides
Case cannot avoid enabling collision accident well, and reason is: the existing scheme that early warning is carried out using voice or light
In, when being prompted by voice or light, car door is had been switched on, the vehicle stranger that these schemes keep for rear to run at high speed
The judgement time of member is too short.Fig. 1 is the comparison schematic diagram of four kinds of distance parameters of the present invention.As shown in Figure 1, visual range
Refer to the farthest judge distance that participant can see；Safe distance refers in emergency brake of vehicle or parking, travels people
At a distance from member avoids collision between vehicle and reserves；Relative distance refers to the actual range between participant and vehicle；It throws
Shadow distance refers to the projector configured on vehicle in the projection in presumptive area and the actual range between participant.
Theoretically, in general, visual range > safe distance >=projector distance；Between the outer participant of vehicle and certain side car door
Relative distance is variable range, when relative distance is less than safe distance, starts enabling anti-collision early warning method of the invention and is
System.That is, visual range be participant it can be seen that maximum distance travel people when automobile door opening generates projection
Member can see projection within the scope of visual range, be at this time that theoretically participant is easiest to the distance for avoiding colliding
Range.In practical driving conditions, when and car deceleration, when and pedestrian accelerate so that the relative distance between automobile and pedestrian
Moment changes；A kind of embodiment of enabling anti-collision early warning method of the invention be exactly continuous probe automobile and pedestrian it
Between relative distance on the basis of, compare the size of relative distance and safe distance；When relative distance is greater than safe distance, vehicle
Do not start enabling anti-collision early warning method of the invention；And when relative distance is less than safe distance, then start the method.Figure
2 be the flow diagram of the enabling anti-collision early warning method of one embodiment of the invention.Fig. 3 is the enabling anticollision of one embodiment of the invention
The application scenarios schematic diagram of method for early warning.As shown in Fig. 2, the present invention provides a kind of car door opening alarming method for power, comprising: detect
The outer personnel of vehicle detect that occupant is opening the side car door close to certain side car door；Near the side car door
Enabling warning region is projected out on road surface.For example, the vehicle of configuration alarming method for power of the present invention, the radar that can be configured by rear car
Or range finder, the driving information of certain side car door rear driver is obtained (for example, position, speed and/or orientation etc. are believed
Breath), and the driving condition of the outer personnel of the vehicle is analyzed in advance；Next, it is determined that going out the outer personnel of the vehicle reaches the pre- of corresponding side car door
Estimate the time；Then, as shown in figure 3, since the method for the present invention can estimate out the time that personnel outside vehicle reach the side car door in advance,
Before hitting an accident, a predetermined face is projected out on the ground near car door by vehicle-mounted laser device or projection arrangement
Long-pending ray regions (vehicle exterior domain as shown in Figure 3) enable the personnel in travelling outside vehicle intuitively to obtain certain side car door
The information warning that will be opened.As one embodiment, opening the door warns region to can be ray regions, sends out for example, passing through laser
The ray regions that the laser harness that raw device generates is constituted.As another embodiment, opening the door warns region to can be visually
Warning symbol, for example, can cause rear run at high speed in the various symbols that pay attention to of the outer personnel of vehicle, for example, X (forked type), O
(round).As another embodiment, opening the door warns region to can be visual image, for example, traffic police's head portrait etc..It can manage
Solution, warning region of opening the door can be the combination of above-mentioned several embodiments, for example, increasing in ray regions visual alert
Show symbol or image, in another example, the display color of symbol or image is using the apparent color of color contrast with ray regions.
It is understood that the outer personnel of the probe vehicles that are used in the method for the present invention close to certain side car door the step of (example
Such as, referred to as " step S1-1 "), need to cooperate and detect the step of occupant is opening the side car door (for example, being known as " step
Rapid S1-2 ").As one embodiment, step S1-1 and step S1-2 uses multithreading parallel processing.For example, can be first
The judgement of step S1-1 is carried out, the judgement of step S1-2 is then carried out, that is, is detecting outside vehicle personnel close to certain side car door
Later, start to detect whether occupant is opening the side car door, if so, the projection step for warning region that triggering is subsequent
Suddenly.In another example the judgement of step S1-2 can be carried out first, the judgement of step S1-1 is then carried out, that is, detecting occupant
After opening the side car door, start the outer personnel of probe vehicles whether close to certain side car door, if so, the police that triggering is subsequent
Show the projection step in region.Further for example, the judgement of step S1-1 and step S1-2 can be carried out simultaneously.
Due to long-range 500 meters of the visual range of human eye, when pedestrian runs at high speed, car door that automobile provides through the invention
Alarming method for power is opened, passes through pre-set projection and warns region, it will be able to allow the personnel outside vehicle in traveling that car door is obtained ahead of time
The information that will be opened so that goers outside vehicle has the sufficient time to be prejudged, with carry out travel speed or traveling it is rectangular and
When adjust, avoid that unnecessary enabling accident occurs.
Further, the relative distance outside vehicle between personnel and car door is being calculated, and is judging the relative distance
When being gradually reduced, and meet following either condition, determine the outer personnel of vehicle close to the state Rule of judgment of certain side car door:
Proximity state Rule of judgment 1, detecting the vehicle, personnel have entered in prewarning area outside；
Proximity state Rule of judgment 2, detecting the vehicle, personnel have entered in the drop shadow spread in warning region of opening the door outside.
So-called " proximity state Rule of judgment " is a kind of pre-set auxiliary judgment condition, in vehicle detection to vehicle
Relative distance between outer personnel and the car door that will be opened, and when judging that the relative distance is gradually reduced, in conjunction with spy
The driving status of the outer personnel of the vehicle measured, for example, relative distance and traveling between the direction of motion and car door of the outer personnel of vehicle
The physical quantitys such as speed, judge whether the outer personnel of vehicle are approaching certain the side car door that will be opened.
As one embodiment, can judge whether relative distance is diminishing using trailer-mounted radar detector, for example,
Radar can calculate vehicle according to the corresponding direction of motion of any two timing node and travel speed by comparing
The changing value of relative distance between outer personnel and the car door that will be opened, if changing value is constantly to reduce, it is determined that phase
It adjusts the distance continuous diminution.
As one embodiment, in the case where with proximity state Rule of judgment 1, according to the orientation D of personnel outside the vehicle
With travel speed V, the relative position P between the outer personnel of the vehicle and automobile is determined；When relative position P is located in prewarning area, and
When relative distance constantly reduces, determine the outer personnel of vehicle close to certain side car door.
As another embodiment, in the case where with proximity state Rule of judgment 2, according to the orientation of personnel outside the vehicle
D and travel speed V determines the relative position P between the outer personnel of the vehicle and automobile；When relative position P is located at warning region of opening the door
Drop shadow spread in, and when relative distance constantly reduces, determine the outer personnel of vehicle close to certain side car door.
It is understood that the outer personnel of above-mentioned determining vehicle can answer close to the condition of certain side car door according to different
It is combined design with scene, and different judgment methods can be combined into different trigger methods from detection enabling step.
To simplify the description, the step of detection is opened the door is omitted here, but it is still and determines the outer personnel of vehicle close to certain side car door
One of the prerequisite condition of triggering projection operation that matches of condition.
Further, when detecting following situation for the moment, prepare to open the dynamic of the side car door as determining occupant
Make Rule of judgment:
Movement Rule of judgment 1 detects that gear information is neutral gear；
Movement Rule of judgment 2 detects that gear information is park position；
Movement Rule of judgment 3 is detected and is being braked when gear information is low-grade；
Movement Rule of judgment 4 detects that wheel speed information is less than predetermined speed per hour；
Movement Rule of judgment 5 detects that central controlled lock has been opened；Or,
Movement Rule of judgment 6 detects that the unlatching of certain side car door lock is triggered.
So-called " movement Rule of judgment " refers to after the mode of operation of vehicle detection to occupant, according to driver's
The actuating quantities such as brake, gear shift movement, occupant's sliding door handle judge whether occupant prepares to open certain side car door.
As one embodiment, with act Rule of judgment 1 in the case where, when detect gear information be neutral gear (N
Shelves) when, it can be determined that go out vehicle and slows down or stop doing；When this happens, which side vehicle can then detect
Car door lock has already turned on, so that it is determined that the car door for needing to open out.
As another embodiment, with act Rule of judgment 2 in the case where, when detect gear information be park position
When (P grades), it can be determined that go out vehicle and stopped；When this happens, which side car door lock vehicle can then detect
Through opening, so that it is determined that the car door for needing to open out.
As another embodiment, in the case where with Rule of judgment 3 are acted, when detect gear information to be low-grade and
When automobile is braked, it can be determined that go out vehicle and slowed down；When this happens, which side vehicle vehicle can then detect
The enabling key of door is triggered, so that it is determined that the car door for needing to open out.
As another embodiment, in the case where with Rule of judgment 4 are acted, make a reservation for when detecting that wheel speed information is less than
When speed per hour, it can be determined that vehicle, which has been done, out slows down；When this happens, vehicle can then detect opening for which side car door
Men Jian is triggered, so that it is determined that the car door for needing to open out.
As another embodiment, in the case where with Rule of judgment 5 are acted, when detecting that central controlled lock has been opened,
It may determine that vehicle has stopped；When this happens, which side car door lock vehicle can then detect and have already turned on, or
The enabling key which side car door person detects is triggered, so that it is determined that the car door for needing to open out.
As another embodiment, in the case where with Rule of judgment 6 are acted, when the unlatching for detecting certain side car door lock
When being triggered, the information which side car door occupant will open will be generated, and enabling information is placed in interior CAN bus,
And just by detector acquisition as shown in Figure 4 before car door opening, so that it is determined that the car door for needing to open out.
It is understood that compared with existing early warning technology, the important difference spy that is designed in the present invention program one of
Be: before certain side car door opening, the method for the present invention just carries out the pre- judgement of car door opening movement, and combines the outer personnel's row of vehicle
Sail the judgement of state.The method of the present invention uses the advantages of this design to be: can shift to an earlier date significantly pre-warning time, for after vehicle
The outer personnel of vehicle in side's traveling provide more pre-warning times, so that the personnel in running at high speed to rear reserve sufficient judgement
Standard is adequately dodged or avoided to time to improve the accuracy that behind personnel judge car door opening and make
It is standby.
As an implementation, the size comparison result of relative distance and safe distance may be used as triggering the present invention mention
The Rule of judgment of enabling anti-collision early warning method out.Projector distance is that the light source institute that launches in hardware luminaire is attainable most
In big distance range, vehicle can change light with distance according to the distance of personnel outside vehicle and the relative distance of car door
Mode project on road surface.When the distance (view field that the relative distance outside vehicle between personnel and automobile is smaller, and light projects
Position) it is closer；Conversely, the distance of light projection is remoter when the relative distance between the outer personnel of vehicle and automobile is bigger.This
Sample can enable the information warning of the acquisition view field of the outer personnel of vehicle promptly and accurately.
As another embodiment, safe distance can be converted into safety time, by setting safety time, works as traveling
When personnel are less than safety time by the relative time that travel speed knocks car door, the present invention can be triggered and propose enabling anti-collision early warning
Method, i.e., using the size comparison result of relative time and safety time as the triggering mode of anti-collision early warning.For example, detecting the vehicle
Outer personnel close to vehicle travel speed, also, according to formula projector distance S=travel speed V × time T determine projection away from
From, in which: time T is the predetermined value being arranged according to safety standard.
Further, when outside the vehicle between personnel and automobile relative distance or relative time change when, it is described pre-
Display color in police region domain accordingly changes therewith.As one embodiment, the travel speed for detecting personnel outside the vehicle it
Afterwards, the relative distance outside the vehicle between personnel and automobile is calculated according to travel speed；Compare the relative distance and default safety away from
From determining the type of the security level of relative distance according to comparison result, and configure to different types of security level different
Display color；Enabling warning region is projected out with the display color of configuration in prewarning area.For example, in general, safe distance
Range is fixed numbers, therefore, relative distance can be divided into: the first distance range of corresponding danger classes, corresponding early warning etc.
The second distance range of grade and the corresponding third distance range close to grade, in which: first distance range L T.LT.LT second distance range
< third distance range, also, when calculated relative distance is within the scope of first distance, it is used in default view field
The red display enabling alarm signal；When calculated relative distance is within the scope of second distance, in default view field
It is middle to show the enabling alarm signal with yellow；When calculated relative distance is in third distance range, in default projection
The enabling alarm signal is shown with green in region.
Similarly, relative time can also be divided into dangerous, early warning and close to three-level, and respectively corresponded red, yellow and green three
Kind projection display color, for example, relative time can be divided into: the critical time range of corresponding danger classes, corresponding early warning etc.
The pre-warning time range of grade and the corresponding prompt time range close to grade, in which: critical time range L T.LT.LT pre-warning time range
< prompt time range, also, the phase that the outer personnel of vehicle reach certain side car door can be calculated by the travel speed of the outer personnel of vehicle
To the time, when calculated relative time is within the scope of critical time, with red display, this is opened in default view field
Door alarm signal；When calculated relative time is within the scope of pre-warning time, shown in default view field with yellow
The enabling alarm signal；When calculated relative time is within the scope of prompt time, with green in default view field
Show the enabling alarm signal.
From the foregoing, it will be observed that Creative Design thinking of the invention is that early warning will be carried out again after door opening in the prior art
Operation, change into the door opening movement for estimate while finding that personnel enter prewarning area outside vehicle car door personnel, and
Projection early warning is carried out before door opening, reserves the sufficient judgement time so as to the personnel in running at high speed to rear,
To improve the accuracy that behind personnel judge car door opening.
Fig. 4 is the hardware module schematic diagram of the enabling anti-collision early warning system of one embodiment of the invention.As shown in figure 4, this hair
It is bright to provide a kind of automobile enabling anti-collision early warning system, comprising: detector, for detecting personnel outside the vehicle in movement；Detection
Device, for detecting car door opening signal；Projector, for generating warning region of opening the door on road surface；Microcontroller, for receiving
The information that detector and detector are sent, and when receiving the outer personnel of vehicle close to certain side car door and occupant prepares to open
When opening the side car door, the instruction that warning region of opening the door is projected out on the road surface near the side car door is sent in projector.
As shown in figure 4, detector includes transmitting terminal, receiving end and amplifilter, with the traveling shape of personnel outside probe vehicles
State.For example, detector may include the radar of the left and right sides, left side radar includes left transmitting terminal, left receiving end and the first amplification
Filter, and right side radar includes right transmitting terminal, right receiving end and the second amplifilter.The transmitting terminal of radar, receiving end
The output end and input terminal being separately connected on the left of amplifilter.Transmitting terminal in radar constantly sends out radio wave,
When being detected with outside vehicle personnel close to automobile, the reflected electric wave signal of tested personnel can receive by receiving end.
As shown in figure 4, microcontroller (MCU) includes transmitting terminal, receiving end, triggering end, projector switch and mode.Micro-control
The input terminal and output end on the right side of amplifilter in transmitting terminal, receiving end connection detector in device processed.For example, microcontroller
The first transmitting terminal in device is connected to the input terminal on the right side of the first amplifilter, to send radar control signal to detector；
Left transmitting terminal in detector is connected to the output end on the left of the first amplifilter；The control that first amplifilter will receive
Signal processed is sent to the left transmitting terminal being connected with its left side output end after filtering and amplification；Outside left transmitting terminal car door to the left
Emission detection signal；Left receiving end in detector is connected to the input terminal on the left of the first amplifilter, after the car door of left side
When having the outer personnel of vehicle close to left side car door, the left receiving end in detector receives the detectable signal being reflected back, and will reflect back into
Detectable signal be sent to the first amplifilter；First amplifilter is by the detectable signal received by filtering and amplifying
It is sent to the first receiving end in the microcontroller being connected with its right side output end afterwards.
As shown in figure 4, before detector can receive interior formation door courtesy SW front LH state, door courtesy SW rear LH state, the right side
Door opening and closing state, door courtesy SW rear RH state, gear state, speed state and central controlled lock switch state, etc. information.For example, working as vehicle
Gear is in the door handle of neutral gear and right-rear-door when pulled, judges that occupant will beat after these information of detector acquisition
Open right-rear-door；Detector connects the triggering end of microcontroller, and opening signal is sent to microcontroller.
On the basis of above description, as shown in figure 4, when microcontroller simultaneously receive right-rear-door side have it is close and high
When the opening signal that the detectable signal and right lateral side car door of the outer personnel of vehicle in speed traveling will be opened, opening for projector is triggered
It opens；Then, before right-rear-door opening, projector has just been projected out alert zone in the predetermined view field on the outside of right-rear-door
Domain.Further, as shown in figure 4, microcontroller can also connect alarm device, pass through projection and two kinds of signal prompt rears of sound
Participant.Further, microcontroller can also control the signal lamp of tailstock configuration, when generating view field, tailstock letter
Signal lamp can be warned by flashing.
For example, detector can be ultrasonic radar hardware, it is arranged at the position of rear view mirror of automobile.For example, microcontroller
Device can be single-chip microcontroller hardware, be arranged at the preceding bin location of automobile, for example, near the position or glove box near air-conditioning
Position.For example, projector can be laser projection hardware, it is arranged on the chassis below either side car door.
Opening the door and warning region may include: ray regions；Or, visual image or symbol.For example, passing through enabling side vehicle
The vehicle-mounted laser transmitter configured on chassis generates laser beam；By the way that laser beam directive is preset view field, and formed visual
The enabling of change warns region.In another example can further be projected out visual image or symbol (such as in warning region of opening the door
Shown in Fig. 3).As another embodiment, when projecting early warning image, early warning auditory tone cues are issued to occupant, by vehicle
Outer personnel give the occupant close to information alert.
One of present invention innovation is automobile enabling anti-collision early warning method provided by the invention and system, passes through probe vehicles
Outer personnel's driving status and detection occupant's door opening action, the time of projection prompt are shifted to an earlier date significantly, can open in car door
Visual visual cues are just carried out before opening, thus to rear run at high speed in personnel reserve the sufficient judgement time, with
Improve the accuracy that behind personnel judge car door opening.
The above is only some embodiments of the invention, it is noted that for the ordinary skill people of the art
For member, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications are also answered
It is considered as protection scope of the present invention.
Claims (9)
1. a kind of automobile enabling anti-collision early warning method characterized by comprising
Car door opening signal is detected by personnel outside the vehicle in carborne detector detection movement and vehicle-mounted detector；When,
The outer personnel of vehicle are detected close to certain side car door, also,
Detect that occupant prepares to open the side car door；
Enabling warning region is projected out on the road surface near the side car door.
2. the method according to claim 1, wherein judging that the relative distance of personnel and automobile is gradually outside vehicle
It reduces, and meets following either condition, determine the outer personnel of vehicle close to certain side car door:
The outer personnel of the vehicle are detected to have entered in prewarning area；Or,
The outer personnel of the vehicle are detected to have entered in the drop shadow spread in warning region of opening the door.
3. the method according to claim 1, wherein determining occupant when detecting following situation a period of time
Prepare the movement Rule of judgment of the unlatching side car door:
Gear information is neutral gear；
Gear information is park position；
Gear information is being braked when being low-grade；
Wheel speed information is less than predetermined speed per hour；
Central controlled lock has been opened；Or,
The unlatching of certain side car door lock is triggered.
4. the method according to claim 1, wherein being projected out enabling on the road surface near the side car door
Region is warned, further comprises:
Detect the relative distance or relative time between the outer personnel of the vehicle and automobile；
Determine the security level of the relative distance or relative time；
Different display colors is configured to different types of security level；
Enabling warning region is projected out with the display color of configuration in warning region of opening the door.
5. method according to claim 1 or 4, which is characterized in that the road surface near the described side car door is further wrapped
It includes: the side and/or side rear of the side car door.
6. the method according to claim 1, wherein the enabling warns region, comprising:
Ray regions；Or,
Visual image or symbol.
7. the method according to claim 1, wherein further include:
When being projected out enabling warning region, early warning sound is issued to occupant or is mentioned by the flashing of tailstock signal lamp
Show, gives personnel outside vehicle to the occupant close to information alert.
8. a kind of automobile enabling anti-collision early warning system characterized by comprising
Detector, for detecting personnel outside the vehicle in movement；
Detector, for detecting car door opening signal；
Projector, for generating warning region of opening the door on road surface；
Microcontroller for the information that pick-up probe and detector are sent, and works as and receives the outer personnel of vehicle close to certain
When side car door and occupant prepare the unlatching side car door, it is sent on the road surface near the side car door and is projected out out to projector
Police guard at as entrance shows the instruction in region.
9. system according to claim 8, which is characterized in that the projector is arranged on the chassis below car door.
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