CN107161081B - A kind of right side blind area image automatically opens system and method - Google Patents
A kind of right side blind area image automatically opens system and method Download PDFInfo
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- CN107161081B CN107161081B CN201710329561.XA CN201710329561A CN107161081B CN 107161081 B CN107161081 B CN 107161081B CN 201710329561 A CN201710329561 A CN 201710329561A CN 107161081 B CN107161081 B CN 107161081B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R1/00—Optical viewing arrangements; Real-time viewing arrangements for drivers or passengers using optical image capturing systems, e.g. cameras or video systems specially adapted for use in or on vehicles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R16/00—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for
- B60R16/02—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements
- B60R16/023—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements for transmission of signals between vehicle parts or subsystems
- B60R16/0231—Circuits relating to the driving or the functioning of the vehicle
- B60R16/0232—Circuits relating to the driving or the functioning of the vehicle for measuring vehicle parameters and indicating critical, abnormal or dangerous conditions
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W40/00—Estimation or calculation of non-directly measurable driving parameters for road vehicle drive control systems not related to the control of a particular sub unit, e.g. by using mathematical models
- B60W40/02—Estimation or calculation of non-directly measurable driving parameters for road vehicle drive control systems not related to the control of a particular sub unit, e.g. by using mathematical models related to ambient conditions
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W50/00—Details of control systems for road vehicle drive control not related to the control of a particular sub-unit, e.g. process diagnostic or vehicle driver interfaces
- B60W50/08—Interaction between the driver and the control system
- B60W50/14—Means for informing the driver, warning the driver or prompting a driver intervention
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R2300/00—Details of viewing arrangements using cameras and displays, specially adapted for use in a vehicle
- B60R2300/80—Details of viewing arrangements using cameras and displays, specially adapted for use in a vehicle characterised by the intended use of the viewing arrangement
- B60R2300/802—Details of viewing arrangements using cameras and displays, specially adapted for use in a vehicle characterised by the intended use of the viewing arrangement for monitoring and displaying vehicle exterior blind spot views
- B60R2300/8026—Details of viewing arrangements using cameras and displays, specially adapted for use in a vehicle characterised by the intended use of the viewing arrangement for monitoring and displaying vehicle exterior blind spot views in addition to a rear-view mirror system
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R2300/00—Details of viewing arrangements using cameras and displays, specially adapted for use in a vehicle
- B60R2300/80—Details of viewing arrangements using cameras and displays, specially adapted for use in a vehicle characterised by the intended use of the viewing arrangement
- B60R2300/8073—Details of viewing arrangements using cameras and displays, specially adapted for use in a vehicle characterised by the intended use of the viewing arrangement for vehicle security, e.g. parked vehicle surveillance, burglar detection
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W50/00—Details of control systems for road vehicle drive control not related to the control of a particular sub-unit, e.g. process diagnostic or vehicle driver interfaces
- B60W50/08—Interaction between the driver and the control system
- B60W50/14—Means for informing the driver, warning the driver or prompting a driver intervention
- B60W2050/146—Display means
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W2554/00—Input parameters relating to objects
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- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Mechanical Engineering (AREA)
- Transportation (AREA)
- Human Computer Interaction (AREA)
- Physics & Mathematics (AREA)
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- Multimedia (AREA)
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- Closed-Circuit Television Systems (AREA)
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Abstract
The invention discloses a kind of right side blind area images to automatically open system and method, including camera, controller and display screen；When controller judges vehicle start；Or when controller judges that speed is less than approach and judge setting speed V1, and receive brake signal effectively, steering wheel right-hand rotation corner be greater than a1 degree, steering wheel left-hand rotation corner persistently reduce and turn right in t1 seconds greater than a2 degree, speed wherein one or more signals in modulating signal when；Automatically turn on camera；When controller, which is based on the distance between barrier and vehicle body, judges that system meets risk distance activation condition, or when controller judges that system meets approach activation condition based on the distance between barrier and vehicle body, display screen display is sent by camera acquired image；When controller judges that vehicle periphery is safe, camera and display screen is automatically closed.The present invention can accurately detect the dangerous situation in the blind area of right side, timely and effectively open right side blind area image.
Description
Technical field
The invention belongs to automobiles apart from early warning and image display technology, and in particular to a kind of right side blind area image is beaten automatically
Open system and method.
Background technique
As automotive safety is increasingly taken seriously, for supplementary security system, most automobile can all configure right side blind area
Display system when driver needing to check right side blind area the case where, needs blind area switch on the right side of Manual press as depicted in figs. 1 and 2
Button 1 opens the camera 4 for being mounted on 3 lower section of right rear view mirror, and by camera acquired image information on display screen 5
It has been shown that, display screen 5 are mounted in vehicle 6.
Right side blind area is opened by way of push switch button and belongs to passive type triggering, is had the disadvantage in that
(1) before vehicle start, user can not determine whether right side blind area has barrier, and it is hidden to have safety for directly driving
Suffer from.
(2) when driving, blind area barrier judges by driver, and the opening of image depends primarily on the subjective meaning of driver
Know, the operation of opening has delay and unreasonable.
(3) for emergency, driver has little time to open at all.
(4) push switch in driving conditions, driver's sight can deviate primary vision area, reduce travel safety.
Therefore, it is necessary to which developing the new right side blind area image of one kind automatically opens system and method.
Summary of the invention
The object of the present invention is to provide a kind of right side blind area images to automatically open system and method, and it is blind accurately to detect right side
Dangerous situation in area, timely and effective opening right side blind area image, to reduce the manual operation of driver.
Right side blind area of the present invention image automatically opens system, including camera, controller and display screen；
The camera is used to obtain the image information in the blind area of right side and is sent to controller；
The display screen is for showing camera acquired image；
The controller identifies the distance between barrier and vehicle body information from image；
The controller obtains speed from CAN network, turns to modulating signal, steering wheel angle and brake signal；
When controller judges vehicle start；Or in the process of moving, when controller judges that speed is less than approach and sentences
When disconnected setting speed V1, and receive brake signal effectively, steering wheel right-hand rotation corner is greater than a1 degree, steering wheel left-hand rotation corner is greater than
A2 degree, speed persistently reduce and turn right in t1 seconds wherein one or more signals in modulating signal when；Automatically turn on camera；
When controller, which is based on the distance between barrier and vehicle body, judges that system meets approach activation condition, or when control
When device processed judges that system meets risk distance activation condition based on the distance between barrier and vehicle body, camera is collected
Image shown on a display screen；
When controller judges that vehicle periphery is safe, camera and display screen is automatically closed.
Further, the controller compares the distance between barrier and vehicle body and default risk distance X1, and
The read-around ratio that the distance between barrier and vehicle body are less than default risk distance X1 is counted, when read-around ratio is more than or equal to k1
When, then it is assumed that system meets risk distance activation condition.
Further, it is risk distance X1 meters default to judge that the distance between barrier and vehicle body are more than or equal to for the controller
And when being less than early warning distance X2 meters default, time distance of working as between barrier and vehicle body is compared with last distance, and
Statistics is less than the read-around ratio of last distance when time distance, when read-around ratio is more than or equal to k2, then it is assumed that system meets to become
Nearly activation condition.
Further, during statistics number, if controller receives invalid distance or when time distance and last distance
When equal, keep recorded read-around ratio, when judge when secondary distance be greater than it is upper once apart from when, accumulative number is clear
Zero, and restart metering.
Further, the controller judges that the speed of vehicle is greater than approach and judges setting speed V1 or camera detection
When the distance between barrier and vehicle body for arriving are greater than default safe distance X3 and the duration be greater than t2 seconds or vehicle driving away from
From more than L meters, then it is assumed that vehicle periphery safety.
Further, the controller judges that the speed of vehicle is greater than approach and judges setting speed V1 or camera detection
When the distance between barrier and vehicle body for arriving are greater than default safe distance X3 and the duration be greater than t2 seconds or vehicle driving away from
From more than L meters, then it is assumed that vehicle periphery safety.
Right side blind area of the present invention image automatically opens method, automatic using right side blind area of the present invention image
Opening system, method the following steps are included:
S1, when controller judges vehicle start；Or vehicle is in the process of moving, when controller judges that speed is less than
Approach is when judge setting speed V1, and receive brake signal effectively, steering wheel right-hand rotation corner is greater than a1 degree, steering wheel turns left turn
Angle be greater than a2 degree, speed persistently reduce and turn right in t1 seconds wherein one or more signals in modulating signal when；It automatically turns on
Acquired image information is sent to controller, controller cognitive disorders object and vehicle from image information by camera, camera
The distance between body；
S2, when controller be based on the distance between barrier and vehicle body judge system meet approach activation condition when, or
When controller, which is based on the distance between barrier and vehicle body, judges that system meets risk distance activation condition, camera is adopted
The image collected is shown on a display screen；
S3, when controller judges that vehicle periphery is safe, camera and display screen is automatically closed.
Further, in the step S2, the controller is by the distance between barrier and vehicle body and default risk distance
X1 is compared, and counts the read-around ratio that the distance between barrier and vehicle body are less than default risk distance X1, when continuous time
When number is more than or equal to k1, then it is assumed that system meets risk distance activation condition.
Further, in the step S2, judge that the distance between barrier and vehicle body are more than or equal to when controller and preset
X1 meters of risk distance and when being less than default early warning distance X2 meter, will between barrier and vehicle body when secondary distance and last distance
It compares, and counts when time distance is less than the read-around ratio of last distance, when read-around ratio is more than or equal to k2, then it is assumed that
System meets approach activation condition；
During statistics number, if controller receives invalid distance or when secondary distance is equidistant with the last time,
Keep recorded read-around ratio, when judge when secondary distance be greater than it is upper once apart from when, number that will be accumulative is reset, and is laid equal stress on
It is new to start metering.
Further, in the step S3, the controller judges that the speed of vehicle is greater than approach and judges setting speed V1,
Or the distance between the barrier that arrives of camera detection and vehicle body are when being greater than default safe distance X3 and the duration is greater than t2 seconds
Or vehicle driving distance is more than L meters, then it is assumed that vehicle periphery safety.
Beneficial effects of the present invention:
(1) when detecting vehicle start, system can be opened in time for monitoring the camera in the blind area of right side, and
The barrier in the blind area of right side is measured in real time by camera, when judging that system meets risk distance activation condition
When, the image in the blind area of right side can be sent to the display screen of installation in the car in time and shown, so as to driver's energy
Enough timely and accurately to find danger source, if ensure that, the driver that is in an emergency in vehicle start also has time enough
To clear；
(2) in vehicle travel process, when system judges that vehicle is carrying out pulling over observing, gives another the right of way and avoiding barrier
Etc. operating conditions when, can open in time for monitor right side blind area in camera, and by camera in the blind area of right side
Barrier be measured in real time, can be in time by right side blind area when judging that system meets risk distance activation condition
Interior image is sent to the display screen of installation in the car and is shown, so that driver can timely and accurately have found danger source,
If ensure that, the driver that is in an emergency in vehicle travel process also has sufficient time to clear；
(3) regardless of vehicle is in starting-up process, or in the process of moving, activation condition is approached when judging that system meets
When, then illustrate that degree of danger is increased constantly, the image in the blind area of right side is sent to is mounted on vehicle in time by system at this time
Interior display screen is shown, gives driver's early warning in advance, driver is made to have sufficient time to clear；
(4) entire decision logic is simpler, and related judgement signal is less；Such as: judging whether to open camera shooting
When head, speed signal, Engine Start Signal and gear information is only needed to participate in the starting stage, in the process of moving,
Speed signal and brake signal and/or steering wheel angle signal and/or right-hand rotation modulating signal is only needed to participate in；Work as camera
After opening, when judging whether to open display screen, it is only necessary to which vehicle speed information and the distance between barrier and vehicle body signal participate in
?；Ensure that the arithmetic speed of whole system is fast and accuracy is high；
(5) open and close of camera and the open and close of display screen are automatic according to actual condition by system
Complete, not only have the advantages that it is accurate, timely, due to do not need driver be manually operated, improve travel safety；Work as system
When detecting dangerous release, camera, display screen can also be automatically closed in system, reach energy-efficient effect；
(6) danger source is shown by image, enable a driver to exact knowledge danger source type (such as: pedestrian, vehicle
Or other barriers), and exact operations are made according to the type of danger source, done one's best to ensure the person and property peace
Entirely；
In conclusion present invention reduces because in Vehicle Starting Process, pedestrian, vehicle or other obstacles occurs in right side blind area
Object, the security risk that when driver's miss drives a vehicle；When driving, the dangerous situation in the blind area of right side can be accurately detected,
Right side blind area image is timely and effectively opened, reduces the movement of driver's manual operation switch, improves the safety of driving.And
Have the advantages that low in energy consumption.
Detailed description of the invention
Fig. 1 is the hardware distribution figure of existing system；
Fig. 2 is the schematic diagram of existing system；
Fig. 3 is hardware distribution figure of the invention；
Fig. 4 is the principle of the present invention figure；
Fig. 5 is close to obstacle schematic diagram；
Fig. 6 is detour obstacle schematic diagram；
Fig. 7 is broad flow diagram of the invention；
Wherein: 1, right side blind area switch button；2, preceding object vehicle；3, right rear view mirror；4, camera；5, display screen；
6, vehicle, 7, controller, 8, road step.
Specific embodiment
The present invention will be further explained below with reference to the attached drawings.
Right side blind area image as shown in Figure 3 and Figure 4 automatically opens system, including camera 4, controller 7 and display screen
5, camera 4 and display screen 5 are connect with controller 7 respectively.The camera 4 is mounted on the lower section of right rear view mirror 3, for obtaining
Image information in the blind area of right side is simultaneously sent to controller 7.Controller 7 from identified in image between barrier and vehicle body away from
From information.Display screen 5 is installed in the car, for showing 4 acquired image of camera.The controller 7 is obtained from CAN network
Pick-up speed turns to modulating signal, steering wheel angle and brake signal.
The working principle that right side blind area of the present invention image automatically opens system is as follows: when controller 7 judges vehicle
When starting；Or in the process of moving, when controller 7 judges that speed judges setting speed V1 less than approach, and brake is received
Vehicle signal effectively, steering wheel right-hand rotation corner be greater than a1 degree (such as: 30 °), steering wheel left-hand rotation corner be greater than a2 degree (such as:
180 °), speed t1 seconds (such as: when wherein one or more signals in the modulating signal that persistently reduces and turn right in 2s)；Automatically
Open camera 4.When controller 7, which is based on the distance between barrier and vehicle body, judges that system meets approach activation condition,
Or it when controller 7 judges that system meets risk distance activation condition based on the distance between barrier and vehicle body, will image
First 4 acquired image is shown on display screen 5.When controller 7 judges that vehicle periphery is safe, camera shooting is automatically closed
First 4 and display screen 5.
As shown in fig. 7, right side blind area of the present invention image automatically opens method, it is blind using right side of the present invention
Area's image automatically opens system, method the following steps are included:
S1, when controller 7 judges vehicle start；Or vehicle is in the process of moving, when controller 7 judges that speed is small
In approach judge setting speed V1 when, and receive brake signal effectively, steering wheel right-hand rotation corner be greater than a1 degree, steering wheel left-hand rotation
Corner be greater than a2 degree, speed persistently reduce and turn right in t1 seconds wherein one or more signals in modulating signal when；Automatically it opens
Camera 4 is opened, acquired image information is sent to controller 7, the cognitive disorders from image information of controller 7 by camera 4
The distance between object and vehicle body.
S2, when controller 7 be based on the distance between barrier and vehicle body judge system meet approach activation condition when, or
When controller 7, which is based on the distance between barrier and vehicle body, judges that system meets risk distance activation condition, by camera 4
Acquired image is shown on display screen 5.
S3, when controller 7 judges that vehicle periphery is safe, camera 4 and display screen 5 is automatically closed.
In the present invention, the method for vehicle start is judged are as follows: speed 0km/h, engine start, vehicle are in drive shift.
In the present invention, judge that system meets the method for risk distance activation condition are as follows: the controller 7 is by barrier and vehicle
The distance between body is compared with default risk distance X1, and is counted the distance between barrier and vehicle body and be less than default danger
The read-around ratio of distance X1, when read-around ratio is more than or equal to k1(such as: 3 times) when, then it is assumed that system meets risk distance activation
Condition.In statistic processes, if the distance between barrier and vehicle body are less than X1 meters, read-around ratio is added into the i.e. dangerous number of 1(
Add 1), if the distance between barrier and vehicle body are more than or equal to X1 meters, accumulative number reset into (i.e. dangerous number is reset),
And restart metering.
In the present invention, judge that system meets the method for approach activation condition are as follows: when controller 7 judges barrier and vehicle body
The distance between be more than or equal to default risk distance X1 meter and be less than when presetting early warning distance X2 meters, will be between barrier and vehicle body
Compared with last distance when time distance, and count when time distance is less than the read-around ratio of last distance, when continuous
Number is more than or equal to k2(such as: 5 times) when, then it is assumed that system meets approach activation condition.During statistics number, if worked as
Secondary distance is less than last distance, then read-around ratio (approaching number) plus 1, if controller 7 receives invalid distance or when secondary
When distance is equidistant with the last time, recorded read-around ratio is kept, when judging to be greater than upper primary distance when time distance
When, accumulative number is reset into (i.e. approach number is reset), and restart metering.
In the present invention, the method for vehicle periphery safety is judged specifically: the controller 7 judges that the speed of vehicle is greater than
Approach judges that the distance between barrier and vehicle body that setting speed V1 or camera 4 detect is greater than default safe distance X3
When；And the duration be greater than t2 second (such as: 5s) or vehicle driving is apart from more than L meters (such as: 10 meters), then it is assumed that vehicle periphery
Safety.
The right side blind area in the present invention refers specifically to vehicle forward right side blind area.
With example, the present invention will be described in detail below, wherein assuming that default risk distance X1 is 70cm, approach is sentenced
Disconnected setting speed V1 is 30km/h, and presetting early warning distance X2 is 80cm, and default safe distance X3 is 100cm.
(1) during vehicle launch, automatically open camera 4, detect barrier (such as: road step 8) away from
From after mean filter, when the read-around ratio less than 70 centimetres is equal to 3 times, it is blind will to issue opening right side for controller 7 at this time
4 acquired image information of camera is transmitted to DVD controller by area's image request signal, and DVD controller is by the image information
It is shown on DVD display screen.
(2) as shown in figure 5, in the process of moving, when the speed of vehicle 6 is less than 30km/h, when detecting the steering wheel right side
Walk around greater than 30 degree of angle (such as: close to barrier operating condition) when, automatically open camera 4, controller 7 is acquired from camera 4
Image in the distance between cognitive disorders object and vehicle body, and carry out approach judgement, when detect barrier (road step 8) with
Time distance of working as of vehicle body is less than last distance, and after continuously meeting the Rule of judgment 5 times, controller 7 will issue opening at this time
4 acquired image information of camera is transmitted to DVD controller by right side blind area image request signal, and DVD controller is by the figure
As information is shown on DVD display screen.
(3) as shown in fig. 6, in the process of moving, when the speed of vehicle 6 is less than 30km/h, when detecting that direction faces left
When walking around angle greater than 180 degree when (such as: detour barrier operating condition or operating condition of giving another the right of way), automatically open camera 4, controller 7 from
The distance between cognitive disorders object and vehicle body in 4 acquired image of camera, and carry out approach judgement, when detecting barrier
Time distance of working as of (preceding object vehicle 2) and vehicle body is less than last distance, after continuously meeting the Rule of judgment 5 times, this time control
Device 7 processed will issue opening right side blind area image request signal, and 4 acquired image information of camera is transmitted to DVD control
Device, DVD controller show the image information on DVD display screen.
(4) in the process of moving, when the speed of vehicle 6 be less than 30km/h when, when detect steering wheel open right turn lamp,
And steering wheel right-hand rotation corner opens camera when being greater than 30 degree (such as: pulling over observing operating condition).When detecting barrier and vehicle body
Be less than last distance when time distance, after continuously meeting the Rule of judgment 5 times；Or detect that barrier is small at a distance from vehicle body
In 70 centimetres, and read-around ratio be equal to 3 times when；Controller 7 will issue opening right side blind area image request signal, DVD at this time
Controller will open DVD display screen, and acquired image information is transmitted to DVD controller, and DVD controller believes the image
Breath is shown on DVD display screen.
(5) in the process of moving, when the speed of vehicle 6 is less than 30km/h, when detecting that speed persistently drops in 2S
It is low, or acquisition vehicle brake signal it is effective when (such as: evacuation barrier operating condition), open camera.When detecting obstacle
Time distance of working as of object and vehicle body is less than last distance, after continuously meeting the Rule of judgment 5 times；Or detect barrier and vehicle body
Distance less than 70 centimetres, and read-around ratio be equal to 3 times when；Controller 7 will issue opening right side blind area image request at this time
Signal, DVD controller will open DVD display screen, and acquired image information is transmitted to DVD controller, and DVD controller will
The image information is shown on DVD display screen.
(6) when camera 4 detect the distance between barrier and vehicle body be greater than 1 meter when, and the duration be greater than 5 seconds or
When vehicle driving distance is more than 10 meters, controller 7 determines that vehicle right side danger disappears, it will issues closing right side blind area image and asks
Signal is sought, camera controller will close camera 4, and DVD controller is closed image and shown.
(7) when car speed is greater than 30km/h, controller 7 will judge vehicle be in safe driving environment, the general of controller 7
Intelligent measurement is closed, while notifying camera controller that will close camera 4, DVD controller is closed image and shown.
Claims (8)
1. a kind of right side blind area image automatically opens system, it is characterised in that: including camera (4), controller (7) and display screen
(5)；
The camera (4) is used to obtain the image information in the blind area of right side and is sent to controller (7)；
The display screen (5) is for showing camera (4) acquired image；
The controller (7) identifies the distance between barrier and vehicle body information from image；
The controller (7) obtains speed from CAN network, turns to modulating signal, steering wheel angle and brake signal；
When controller (7) judges vehicle start；Or in the process of moving, when controller (7) judges that speed is less than approach
When judging setting speed V1, and receive brake signal effectively, that steering wheel right-hand rotation corner is greater than a1 degree, steering wheel left-hand rotation corner is big
When a2 degree, speed persistently reduce and turn right wherein one or more signals in modulating signal in t1 seconds；Automatically turn on camera shooting
Head (4)；
When controller (7), which are based on the distance between barrier and vehicle body, judges that system meets approach activation condition, or when control
When device (7) processed judges that system meets risk distance activation condition based on the distance between barrier and vehicle body, by camera (4)
Acquired image is shown on display screen (5)；
When controller (7) judges that vehicle periphery is safe, camera (4) and display screen (5) is automatically closed；
The controller (7) compares the distance between barrier and vehicle body and default risk distance X1, and counts obstacle
The distance between object and vehicle body are less than the read-around ratio of default risk distance X1, when read-around ratio is more than or equal to k1, then it is assumed that
System meets risk distance activation condition.
2. right side blind area according to claim 1 image automatically opens system, it is characterised in that: the controller (7) is sentenced
When disconnected the distance between barrier and vehicle body out are more than or equal to default risk distance X1 meters and are less than early warning distance X2 meters default, by
Secondary distance of working as between barrier and vehicle body is compared with last distance, and is counted when secondary apart from less than last distance
Read-around ratio, when read-around ratio is more than or equal to k2, then it is assumed that system meets approach activation condition.
3. right side blind area according to claim 2 image automatically opens system, it is characterised in that: in statistics number process
In, if controller (7) receives invalid distance or when secondary distance is equidistant with the last time, keep continuous time recorded
Number, when judge when secondary distance be greater than it is upper once apart from when, number that will be accumulative is reset, and restarts metering.
4. right side blind area according to claim 1 or 2 or 3 image automatically opens system, it is characterised in that: the controller
(7) judge that the speed of vehicle is greater than between the barrier and vehicle body that approach judges that setting speed V1 or camera (4) detect
Distance is when being greater than default safe distance X3 and the duration is greater than t2 second or vehicle driving apart from more than L meters, then it is assumed that vehicle
Surrounding safety.
5. a kind of right side blind area image automatically opens method, it is characterised in that: using right side fade chart as described in claim 1
As automatically opening system, method the following steps are included:
S1, when controller (7) judges vehicle start；Or vehicle is in the process of moving, when controller (7) judges that speed is small
In approach judge setting speed V1 when, and receive brake signal effectively, steering wheel right-hand rotation corner be greater than a1 degree, steering wheel left-hand rotation
Corner be greater than a2 degree, speed persistently reduce and turn right in t1 seconds wherein one or more signals in modulating signal when；Automatically it opens
It opens camera (4), acquired image information is sent to controller (7) by camera (4), and controller (7) is from image information
The distance between cognitive disorders object and vehicle body；
S2, when controller (7) be based on the distance between barrier and vehicle body judge system meet approach activation condition when, or work as
When controller (7) judges that system meets risk distance activation condition based on the distance between barrier and vehicle body, by camera
(4) acquired image is shown on display screen (5)；
S3, when controller (7) judges that vehicle periphery is safe, camera (4) and display screen (5) is automatically closed.
6. right side blind area according to claim 5 image automatically opens method, it is characterised in that: in the step S2, when
Controller (7) judge the distance between barrier and vehicle body be more than or equal to default risk distance X1 meter and be less than preset early warning away from
When from X2 meters, time distance of working as between barrier and vehicle body is compared with last distance, and counts when time distance is less than
The read-around ratio of last distance, when read-around ratio is more than or equal to k2, then it is assumed that system meets approach activation condition.
7. right side blind area according to claim 6 image automatically opens method, it is characterised in that: in statistics number process
In, if controller (7) receives invalid distance or when secondary distance is equidistant with the last time, keep continuous time recorded
Number, when judge when secondary distance be greater than it is upper once apart from when, number that will be accumulative is reset, and restarts metering.
8. automatically opening method according to right side blind area image described in claim 5 or 6 or 7, it is characterised in that: the step S3
In, the controller (7) judges that the speed of vehicle is greater than the barrier that approach judges that setting speed V1 or camera (4) detect
When the distance between object and vehicle body being hindered to be greater than default safe distance X3 and the duration is greater than t2 seconds or vehicle driving distance is more than L
Rice, then it is assumed that vehicle periphery safety.
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