WO2011058856A1 - 多機能カメラシステム - Google Patents
多機能カメラシステム Download PDFInfo
- Publication number
- WO2011058856A1 WO2011058856A1 PCT/JP2010/068507 JP2010068507W WO2011058856A1 WO 2011058856 A1 WO2011058856 A1 WO 2011058856A1 JP 2010068507 W JP2010068507 W JP 2010068507W WO 2011058856 A1 WO2011058856 A1 WO 2011058856A1
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- WIPO (PCT)
- Prior art keywords
- vehicle
- door
- unit
- camera
- determination unit
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Classifications
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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
- B60R1/02—Rear-view mirror arrangements
- B60R1/06—Rear-view mirror arrangements mounted on vehicle exterior
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B81/00—Power-actuated vehicle locks
- E05B81/54—Electrical circuits
- E05B81/64—Monitoring or sensing, e.g. by using switches or sensors
- E05B81/76—Detection of handle operation; Detection of a user approaching a handle; Electrical switching actions performed by door handles
- E05B81/78—Detection of handle operation; Detection of a user approaching a handle; Electrical switching actions performed by door handles as part of a hands-free locking or unlocking operation
-
- 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
- B60R1/20—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
- B60R1/22—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 for viewing an area outside the vehicle, e.g. the exterior of the vehicle
- B60R1/23—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 for viewing an area outside the vehicle, e.g. the exterior of the vehicle with a predetermined field of view
- B60R1/25—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 for viewing an area outside the vehicle, e.g. the exterior of the vehicle with a predetermined field of view to the sides of the vehicle
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R25/00—Fittings or systems for preventing or indicating unauthorised use or theft of vehicles
- B60R25/10—Fittings or systems for preventing or indicating unauthorised use or theft of vehicles actuating a signalling device
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R25/00—Fittings or systems for preventing or indicating unauthorised use or theft of vehicles
- B60R25/20—Means to switch the anti-theft system on or off
- B60R25/25—Means to switch the anti-theft system on or off using biometry
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R25/00—Fittings or systems for preventing or indicating unauthorised use or theft of vehicles
- B60R25/30—Detection related to theft or to other events relevant to anti-theft systems
- B60R25/305—Detection related to theft or to other events relevant to anti-theft systems using a camera
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R11/00—Arrangements for holding or mounting articles, not otherwise provided for
- B60R11/04—Mounting of cameras operative during drive; Arrangement of controls thereof relative to the vehicle
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
- B60R21/34—Protecting non-occupants of a vehicle, e.g. pedestrians
-
- 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
- B60R2300/40—Details of viewing arrangements using cameras and displays, specially adapted for use in a vehicle characterised by the details of the power supply or the coupling to vehicle components
-
- 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
- B60R2300/70—Details of viewing arrangements using cameras and displays, specially adapted for use in a vehicle characterised by an event-triggered choice to display a specific image among a selection of captured images
-
- 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
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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
- B60R2300/8093—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 obstacle warning
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- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
- E05Y2201/00—Constructional elements; Accessories therefor
- E05Y2201/60—Suspension or transmission members; Accessories therefor
- E05Y2201/622—Suspension or transmission members elements
- E05Y2201/676—Transmission of human force
- E05Y2201/68—Handles, cranks
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- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
- E05Y2400/00—Electronic control; Electrical power; Power supply; Power or signal transmission; User interfaces
- E05Y2400/80—User interfaces
- E05Y2400/85—User input means
- E05Y2400/8505—User authentication, e.g. biometric
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
- E05Y2600/00—Mounting or coupling arrangements for elements provided for in this subclass
- E05Y2600/40—Mounting location; Visibility of the elements
- E05Y2600/46—Mounting location; Visibility of the elements in or on the wing
Definitions
- the present invention relates to a multi-function camera system that applies a vehicle-mounted camera to a plurality of uses.
- Patent Document 1 discloses an authentication system that captures an image of a person's face standing outside a driver's seat door from the inside of the vehicle and biometrically authenticates the face.
- Patent Document 2 describes whether there is an obstacle around the vehicle when the front door is opened based on an image taken by a camera installed on a side mirror, A technique for detecting whether or not an obstacle is approaching from behind is disclosed.
- Patent Document 3 discloses a technique of installing a camera on a door mirror and using the camera for different purposes depending on the scene. It is disclosed.
- patent document 3 uses for the use which image
- the camera of Patent Document 4 functions as a side blind camera by photographing a scene in front of the vehicle that becomes a blind spot of the driver when the vehicle is used, and rotates 180 degrees in the door mirror housing when the vehicle is not used. Then, it captures the scene inside the vehicle and functions as a vehicle monitoring camera.
- JP 2006-168553 A (23rd, 31st to 33rd paragraphs, etc.) JP 2007-153193 A (9th, 15th paragraphs, etc.) Japanese Patent Laying-Open No. 2005-88759 (paragraphs 21, 24 to 28, etc.) JP 2006-182234 A (11th to 14th, 17th paragraph, etc.)
- the characteristic configuration of the multifunction camera system is as follows: A camera fixed to a vehicle part on the side of the vehicle and photographing the side of the vehicle; A condition determination unit that determines execution conditions of a plurality of functional units; An obstacle as the functional unit that is executed based on a determination result of the condition determination unit and detects an obstacle existing around the vehicle or approaching the vehicle by image recognition based on a captured image of the camera A detection unit; The process is executed based on a determination result of the condition determination unit, and authenticates by image recognition whether or not a person who has reached the vehicle is a user registered in advance in the vehicle based on a captured image of the camera. And a personal authentication unit as a functional unit.
- the multi-function camera system includes a plurality of function units including an obstacle detection unit and a personal authentication unit, but each function unit is not always executed, and is based on the determination result of the execution condition by the condition determination unit. Is executed as appropriate. Therefore, even if it has a plurality of functional units, an increase in calculation load is suppressed, and a multi-function camera system can be constructed at low cost without using a high-performance arithmetic device. Needless to say, this does not prevent the plurality of functional units from being executed at the same timing according to the execution conditions.
- condition determination unit of the multi-function camera system is configured such that the execution condition of the obstacle detection unit is satisfied when the vehicle is running including temporary stop or is not locked. It is preferable to determine that the execution condition of the personal authentication unit is satisfied when the vehicle is not running and is locked and stopped.
- Each function unit can be effectively executed under an appropriate execution condition according to the use state of the vehicle.
- the multi-function camera system is further executed based on a determination result of the condition determination unit, and includes a captured image captured by the camera including a blind spot scene from a driver of the vehicle.
- a blind monitor unit serving as the functional unit for outputting to an indoor display device, wherein the condition determining unit is instructed to display the photographed image by a passenger of the vehicle including the driver, or the obstacle It is preferable to determine that the execution condition of the blind monitor unit is satisfied when an obstacle is recognized by the detection unit. Even if the multi-function camera system includes more functional units, each functional unit is appropriately executed based on a determination result of an appropriate execution condition according to the use state of the vehicle by the condition determining unit.
- blind monitor unit and the other functional units may be executed at the same timing according to the execution conditions.
- the condition determination unit preferentially executes image recognition on a front side of the vehicle or image recognition on a rear side.
- the priority condition is determined
- the obstacle detection unit preferentially executes image recognition on either the front side or the rear side based on the determination result of the condition determination unit.
- the camera is preferably a wide-angle camera in which a blind spot from the driver is included in the imaging range.
- the wide-angle camera takes an image of a wide area. Therefore, it is more efficient in terms of time and computational load to perform image recognition with a narrowed area than to perform obstacle recognition by performing image recognition over the entire captured image. According to the above configuration, since a wide area captured image is divided into two areas on the front side and the rear side of the vehicle and an area where image recognition is preferentially executed is set, efficient obstacle detection can be executed. .
- the condition determination unit is responsive to the degree of opening of the swing door.
- the priority condition is determined, and when the opening degree of the swing door is smaller than a predetermined opening degree, priority is given to image recognition on the front side, and when the opening degree of the swing door is higher than the predetermined opening degree, the rear side It is preferable to determine to prioritize the image recognition on the side.
- the swing door that rotates with the front side as a fulcrum is opened, the end of the door moves to the front side.
- the multi-function camera system includes an opening calculation unit that calculates an opening degree of the swing door based on a captured image of the camera, and the camera is installed in the swing door or the swing door. It is preferable that it is installed in a vehicle part. According to this configuration, the camera moves together with the swing door. On the other hand, since the vehicle body is not moving, the positions of vehicle parts and vehicle bodies other than the swing door move (change) in the captured image. The degree of opening of the swing door can be calculated from this movement amount (change amount). Therefore, it is possible to acquire the degree of opening of the swing door with high accuracy without providing a separate sensor or the like on the swing door.
- the camera, the condition determination unit, and the plurality of function units of the multi-function camera system according to the present invention function when the main power of the vehicle is turned on. Further, the camera functions regardless of whether or not the main power of the vehicle is turned on, and even when the main power of the vehicle is not turned on, according to the operation to the door of the vehicle, the camera, It is preferable that a power supply control unit that causes at least one of the condition determination unit and the functional units to function is provided.
- the multi-function camera system should be executed when the main power of the vehicle is not turned on, for example, when getting on a parked vehicle, or after turning off the main power, for example, when the vehicle is parked and alighted. It has a functional part.
- the power control unit functions when the main power of the vehicle is not turned on, and supplies power to the necessary functional units according to the operation to the door of the vehicle. Therefore, a multifunctional camera system that is power-saving and highly convenient is constructed.
- the operation on the door of the vehicle may be that a person who has reached the vehicle touches a door handle provided outside the vehicle compartment of the vehicle. Further, the operation on the door of the vehicle may be that a passenger of the vehicle including a driver of the vehicle touches a door handle provided in a passenger compartment of the vehicle.
- operation to the vehicle door can be detected more quickly, and power can be supplied to each functional unit including the camera and condition determination unit at an early stage via the power supply control unit. It is possible to start and have them run.
- In-vehicle cameras can be applied to multiple applications at low cost without providing a mechanism that increases vehicle weight.
- the multi-function camera system 10 includes a camera 1 that is fixed to a door handle 61 on the side surface of the vehicle 100 and photographs the side of the vehicle 100.
- the vehicle part to which the camera 1 is fixed is the door handle 61, but other parts may of course be used.
- the vehicle part may be a door panel of the door 60, a side mirror, or a fender.
- the camera 1 when the camera 1 is fixed to the door handle 61, it may be installed on the handle main body 61a or on the handle cap 61b.
- the vehicle 100 has four doors 60 on the side surface.
- the vehicle 100 includes a driver seat door 60A, a passenger seat door 60B, a driver seat side rear door 60C, and a passenger seat side rear door 60D.
- the driver's seat door 60A and the passenger seat door 60B are swing doors that rotate about the front side of the vehicle 100 as a fulcrum. is there.
- the driver seat side rear door 60C and the passenger seat side rear door 60D are slide doors.
- One camera 1 is installed in each of the driver's seat door 60A and the passenger seat door 60B. Needless to say, the number of cameras is not limited to two, and a total of three or more cameras may be installed in the vehicle 100 by being installed in the rear doors 60C and 60D.
- the camera 1A is installed with the optical axis fixed to the door handle 61A of the driver seat door 60A
- the camera 1B is installed with the optical axis fixed to the door handle 61B of the passenger seat door 60B.
- the camera 1 is a wide-angle camera having a viewing angle of about 180 degrees, and is preferably installed with a depression angle of about 5 to 10 degrees.
- the imaging range includes a height of about 2 m from the ground in the vicinity of the door 60, and can capture the head of a person standing beside the door 60.
- the camera 1 is a digital camera capable of digitally capturing a moving image of 15 to 60 frames per second.
- the shooting range E of the camera 1 includes a side surface of the vehicle 100, a front end and a rear end on the side surface side. Although details will be described later, in the photographing range E, the front side is F and the rear side is R.
- the shooting range of the camera 1A is denoted by E1
- the front side of E1 is denoted by F1
- the rear side of E1 is denoted by R1.
- the photographing range of the camera 1B is denoted as E2
- the front side of E2 is denoted as F2
- the rear side of E2 is denoted as R2.
- the multi-function camera system 10 has a plurality of functional units such as a condition determination unit 3, a blind monitor unit 4, an obstacle detection unit 5, and a personal authentication unit 6.
- the function unit of the present invention is each unit constituting the multi-function camera system 10 and includes the camera 1 in a broad sense.
- the blind monitor unit 4, the obstacle detection unit 5, and the personal authentication unit 6 are functional units that realize “each application” when the camera 1 is applied to a plurality of applications. This is referred to as an application function unit.
- the blind monitor unit 4, the obstacle detection unit 5, and the personal authentication unit 6 are illustrated, but of course, an application function unit that realizes other applications is included in the multi-function camera system 10. May be.
- the multifunction camera system 10 may include a parking support unit that guides the driver when the vehicle 100 is parked. Conversely, the multi-function camera system 10 that applies the camera 1 to a plurality of uses only needs to include at least two use function units. For example, only the obstacle detection unit 5 and the personal authentication unit 6 are used as the use function units. It may be a system having
- the blind monitor unit 4 is a functional unit that outputs a photographed image including a scene in the photographing range E photographed by the camera 1 to the display device 20 in the vehicle interior.
- This captured image includes a blind spot scene from the driver of the vehicle 100.
- the blind spot from the driver means the side of the fender, the lower side of the fender or the door 60, and the like.
- the display device 20 is a monitor device such as a liquid crystal display installed in the vehicle interior.
- the display device 20 may be installed exclusively for the blind monitor unit 4, but may also be used as an information display unit for an audio device or a display unit for a navigation system.
- the obstacle detection unit 5 is a functional unit that detects an object existing around the vehicle 100 or a moving body approaching the vehicle 100 as an obstacle by image recognition based on the captured image.
- the object is, for example, a curb or a pole
- the moving body is, for example, a pedestrian, a bicycle, a motorcycle, an automobile, or the like.
- Image recognition of a stationary object and a moving object is performed by a known image processing method.
- the personal authentication unit 6 is a functional unit that authenticates whether or not a person who has reached the vehicle 100 is a user registered in advance in the vehicle 100 by image recognition based on the captured image. This authentication is performed by known methods such as face recognition, eye iris recognition, fingerprint recognition, vein recognition, and the like.
- the blind monitor unit 4, the obstacle detection unit 5, and the personal authentication unit 6 execute their functions based on the determination result of the condition determination unit 3 that determines the execution condition for each function unit.
- the condition determination unit 3 determines that the execution condition of the blind monitor unit 4 is satisfied when the passenger of the vehicle 100 including the driver is instructed to display the captured image.
- the instruction by the passenger is, for example, operating the display switch 21 (see FIG. 1) provided in the passenger compartment.
- the display switch 21 may be a dedicated switch, or may be set to the touch panel when the display device 20 has a touch panel.
- the instruction via the display switch 21 includes an instruction to select one of the captured images of the camera 1A or the camera 1B, an instruction to display both, and an instruction to partially enlarge the image.
- condition determination unit 3 determines that the execution condition of the blind monitor unit 4 is satisfied when the obstacle detection unit 5 recognizes the obstacle.
- the obstacle detection unit 5 detects an obstacle, it issues a display request for a captured image.
- the condition determination unit 3 determines that the execution condition of the blind monitor unit 4 is satisfied based on the display request.
- the driver can confirm the detection result of the obstacle detection unit 5 at an early stage including the authenticity by looking at the captured image.
- the condition determination unit 3 determines that the execution condition of the obstacle detection unit 5 is satisfied when the vehicle 100 is traveling including a temporary stop. Specifically, when the main power supply of the vehicle 100 is turned on, such as when the ignition switch is on, the condition determination unit 3 determines that the execution condition of the obstacle detection unit 5 is satisfied based on the ignition signal or the like. judge. In a hybrid vehicle using an internal combustion engine and a motor as drive sources and an electric vehicle using a motor as a drive source, there may be no ignition switch for starting a so-called internal combustion engine. However, even in these vehicles, a main power source (main switch) exists in order to make the drive source of the vehicle effective.
- main switch main switch
- the condition determination unit 3 determines that the vehicle 100 is traveling including a temporary stop. It is determined that the execution condition of the detection unit 5 is satisfied. In addition, the condition determination unit 3 executes the obstacle detection unit 5 when the vehicle 100 is stopped without being locked even when the main power is turned off and the vehicle 100 is not in a state where it can travel. It is determined that the condition is met. This corresponds to, for example, when the main power is cut off and the passenger is about to get off.
- condition determination unit 3 determines that the execution condition of the personal authentication unit 6 is satisfied when the vehicle 100 is not running but is locked and stopped.
- the main power is not turned on, and the vehicle 100 cannot travel even by operating the accelerator or releasing the brake.
- condition determination unit 3 preferentially executes either image recognition on the front side corresponding to the shooting range F of the vehicle 100 or image recognition on the rear side corresponding to the shooting range R.
- the priority condition is determined.
- the obstacle detection unit 5 preferentially executes image recognition for either the front side (F) or the rear side (R) based on the determination result of the priority condition by the condition determination unit 3.
- the vehicle 100 has the swing doors (doors 60A and 60B) that rotate about the front side of the vehicle 100 as a fulcrum.
- the condition determination unit 3 determines the priority condition according to the degree of opening of the swing doors 60A and 60B.
- a predetermined opening degree (priority threshold value)
- the cameras 1A and 1B are installed on the swing doors 60A and 60B, respectively. Specifically, it is installed on door handles 61A and 61B which are vehicle parts installed on swing doors 60A and 60B. Therefore, the camera 1 (1A and 1B) installed with the optical axis fixed also moves according to the rotation of the swing door 60 (60A and 60B), and the captured image also changes accordingly. On the other hand, since the vehicle body is not moving, positions of vehicle parts and vehicle bodies other than the swing door 60 and the door handle 61 (61A and 61B) move in the captured image. Therefore, in the present embodiment, the multi-function camera system 10 further includes an opening degree calculation unit 7 that calculates the degree of opening of the swing door 60 by image processing based on the captured image.
- the opening calculation unit 7 swings according to the relative movement amount (change amount) of the position of the vehicle part or the vehicle body that moves in the captured image by the movement of the camera 1, which is different from the door 60 and the door handle 61. Calculate the degree of door opening.
- a bumper, a tire, a wheel, a gap or an end portion of a vehicle body outer plate, and the like correspond to other vehicle parts or a vehicle body.
- a separate sensor or the like can be installed on the swing door 60 to detect the degree of opening.
- the opening degree calculation unit 7 calculates the degree of opening of the swing door 60 by image processing, it is not necessary to provide the sensor, and the production cost can be reduced.
- Each functional unit of the above-described multi-function camera system 10 specifically, the camera 1, the condition determination unit 3, the blind monitor unit 4, the obstacle detection unit 5, the personal authentication unit 6, and the opening calculation unit 7
- the personal authentication unit 6 satisfies the execution condition when the vehicle 100 is not running and is locked and stopped, but cannot receive power supply when the main power is not turned on.
- the function cannot be executed.
- the obstacle detection unit 5 satisfies the execution condition when the vehicle 100 is stopped without being locked even when the main power supply is cut off and the vehicle 100 is not in a state where it can travel.
- the power supply cannot be received and the function cannot be executed.
- the condition determination unit 3 that determines the execution condition cannot receive power supply when the main power supply is not turned on, and thus cannot be determined.
- the multi-function camera system 10 further includes a power control unit 8 that supplies power to a predetermined function unit under a predetermined condition even when the main power of the vehicle 100 is not turned on. .
- the power control unit 8 functions regardless of whether the main power of the vehicle 100 is turned on.
- the power supply control part 8 makes at least 1 of each function part function according to operation to the door 60, even when the main power supply of the vehicle 100 is not turned on.
- the power supply control unit 8 causes at least one of the camera 1, the condition determination unit 3, and each application function unit to function.
- the power control unit 8 causes at least one of the camera 1, the condition determination unit 3, the blind monitor unit 4, the obstacle detection unit 5, and the personal authentication unit 6 to function.
- the “operation on the door 60” may be that a person who has reached the vehicle 100 touches the door handle 61 provided outside the passenger compartment. Further, the “operation on the door 60” may be that a passenger including the driver of the vehicle 100 touches a door handle provided in the passenger compartment. These “operations on the door 60” will be described later using specific examples.
- each functional unit of the multi-function camera system 10 may be configured as individual devices.
- an ECU (electronic control unit) 12 having a microcomputer (CPU) 12c is used as a core. That is, each functional unit is realized by cooperation between hardware having a microcomputer (CPU) 12c as a core and software stored in the program memory 12p.
- a photographed image photographed by the camera 1 is input to the ECU 12 via the image interface unit 11.
- the ECU 12 has a work memory 12w, and appropriately stores photographed images and other temporary data to perform arithmetic processing such as image processing.
- the CPU 12c, the program memory 12p, and the work memory 12w may be integrated as one processor.
- the ECU 12 also cooperates with an alarm device 30 such as a buzzer and the display device 20.
- the ECU 12 cooperates with other ECUs by an in-vehicle network 50 such as a CAN (controller area network).
- the ECU 12 is linked to a door control system 40 that controls each of the four doors 60 via the in-vehicle network 50.
- the four door control systems 40 are a driver's seat door control system 40A, a passenger seat door control system 40B, a driver seat side rear door control system 40C, and a passenger seat side rear door control system 40D, respectively.
- Each of the four door control systems 40 includes a door ECU 41 (41A, 41B, 41C, 41D) that is the core of the system, and a door sensor 42 (42A, 42B, 42C, 42D) that detects whether the door is open or not. , A lock actuator 43 (43A, 43B, 43C, 43D) for electrically locking and unlocking the door, and an opening / closing actuator 44 (44A, 44B, 44C, 44D) for opening and closing the door electrically.
- the ECU 12 and the door control system 40 may be connected by a dedicated line.
- the door ECU 41 is configured with a microcomputer or the like as a core, like the ECU 12 of the multi-function camera system 10.
- the door sensor 42 may be a door switch that simply detects whether the door 60 is fastened to the vehicle body or is not fastened. Moreover, the sensor which detects the opening degree of swing door 60A or 60B may be sufficient, and the presence or absence of operation to the door handle (door knob) provided in the vehicle interior may be a detection sensor.
- the lock actuator 43 is a solenoid, for example, and locks and unlocks the door 60 under the control of the door ECU 41.
- the opening / closing actuator 44 is, for example, a motor.
- the opening / closing actuator 44 opens and closes the doors 60C and 60D between fully open and fully closed under the control of the door ECU 41.
- the opening / closing actuator 44 does not open / close the door 60 between the fully open and fully closed state, for example, from the fully closed state to the slightly opened state, etc. It may open and close a limited range.
- the opening and closing actuator 44 may be used to suppress manual opening and closing.
- the driver's seat door control system 40A and the passenger seat door control system 40B are further configured to include touch sensors 45 (45A, 45B) outside the vehicle.
- the touch sensor 45 is, for example, a capacitance sensor, and is built in the side of the door handle 61 facing the door 60 as shown in FIG. Although FIG. 2 illustrates the driver's seat door 60A, the same applies to the passenger seat door 60B.
- the touch sensor 45 detects that a user's hand who is trying to operate the door handle 61 to open the door 60 has touched the door handle 61. Regardless of whether or not the main power supply of the vehicle 100 is turned on, it is preferable that the touch sensor 45 is always supplied with weak electric power or intermittently supplied with electric power.
- the touch sensor 45 is not limited to this embodiment, and is provided with a switch on the side opposite to the side where the door handle 60 faces the door 60, and detects that the user operates this switch. Also good.
- the multi-function camera system 10 exhibits various functions in various scenes in cooperation with the respective equipment of the vehicle 100 as described above.
- the operation of the multi-function camera system 10 in each scene will be described below using the flowcharts shown in FIGS. 4 to 7 and the explanatory diagrams shown in FIGS.
- the touch sensor 45 is always supplied with weak power or intermittently. Therefore, it is possible to detect an operation on the door handle 61 by the user regardless of whether or not the main power supply of the vehicle 100 is turned on.
- the detection result of the touch sensor 45 is transmitted to the ECU 12 via the in-vehicle network 50.
- the CPU 12c of the ECU 12 receives the detection result of the touch sensor 45 as an interrupt.
- the CPU 12c is restarted (waked up) by receiving the detection result of the touch sensor 45 even when the CPU 12c is in a power saving mode or the like.
- the acceptance of such an interrupt and the restart of the CPU 12c are executed mainly by the power supply control unit 8.
- the power supply control unit 8 instructs the camera 1, the condition determination unit 3, and the personal authentication unit 6 to execute for a certain period (# 11, # 12).
- the power supply control unit 8 activates only the camera 1A when receiving the detection result from the touch sensor 45A of the driver's seat door 60A, and only the camera 1B when receiving the detection result from the touch sensor 45B of the passenger's seat door 60B. It is power saving when starting up. In addition, since the touch sensor 45 does not execute personal authentication on the side where the user's operation is not detected, it is possible to prevent erroneous authentication from being established, which is preferable in terms of security.
- the activated condition determination unit 3 determines that the execution condition of the personal authentication unit 6 is satisfied because the vehicle 100 is not running but is locked and stopped. When the execution condition is satisfied, the personal authentication unit 3 recognizes the captured image and authenticates whether the person in the captured image is a user registered in the vehicle 100 in advance. If the authentication result is acceptable, an unlock instruction is transmitted from the ECU 12 to the door control system 40 (40A to 40D) (# 13, # 14). ECU12 will complete
- the lock actuators 43 (43A to 43D) are controlled by the door ECUs 41 (41A to 41D) of the door control system 40, and the vehicle 100 is unlocked. If the authentication result is unacceptable, the ECU 12 ends the process.
- the camera 1, the condition determination unit 3, and the personal authentication unit 6 are executed for a certain period by the power supply control unit 8, and when the certain period elapses, the camera 1, the condition determination unit 3, and the personal authentication unit 6 are again in a sleep state. If personal authentication is unacceptable, power may be wasted if power is supplied to the camera 1 or the like. Further, even if the personal authentication is successful and the user gets on the door 60 by opening the door 60, the vehicle 100 is not always started by turning on the main power supply immediately. Therefore, it is preferable that the personal computer enters the hibernation state again in the power saving mode or the like after the personal authentication is completed, regardless of whether it has passed or failed. In the present embodiment, the “certain period” is set, but the present invention is not limited to this. The normal operation may be continued as it is, and the personal computer may be returned to the sleep state by using another event as a trigger when the personal authentication is failed or when the personal authentication is successful and the door 60 is opened.
- the condition determination unit 3 determines whether or not there is a display request (# 21). If there is a display request, the condition determination unit 3 instructs the blind monitor unit 4 to display a captured image (# 22).
- the blind monitor unit 4 instructs the image interface unit 11 and the display device 20 to display a captured image, and the captured image is displayed on the display device 20.
- the captured image display instruction includes an instruction to select one of the captured images of the camera 1A or the camera 1B, an instruction to display both, and an instruction to partially enlarge the image.
- the condition determination unit 3 determines that the execution condition of the blind monitor unit 4 is satisfied when the obstacle detection unit 5 recognizes the obstacle. In addition, the condition determination unit 3 determines that the execution condition of the blind monitor unit 4 is satisfied when the display switch 21 is instructed by a passenger of the vehicle 100 including the driver, for example, when an instruction to display a captured image is given. . For example, if the power control unit 8 is configured to restart the ECU 12 when the display switch 21 is operated, the main power is not turned on to the vehicle 100 as in the procedure shown in FIG. Even at times, the blind monitor unit 4 can be executed.
- the condition determination unit 3 determines that the execution condition of the obstacle detection unit 5 is satisfied when the vehicle 100 is traveling including a temporary stop.
- the obstacle detection unit 5 detects the presence or absence of an obstacle in the photographed image and the approach thereof by a known image recognition technique such as a difference between the frames (captured images) or pattern matching within one frame.
- the obstacle detection unit 5 instructs the alarm device 30 such as a buzzer to issue an alarm (# 32).
- a request for displaying a captured image is sent to the blind monitor unit 4 (# 33).
- an instruction for enlarging the front side F or the rear side R may be added according to the position of the detected obstacle.
- the blind monitor unit 4 can display an enlarged captured image on the display device 20 in cooperation with the image interface unit 11. The operation of the blind monitor unit 4 that has received the display request for the captured image is as described above with reference to FIG.
- condition determination unit 3 is an obstacle when the vehicle 100 is stopped without being locked, even when the main power is not turned on and the vehicle 100 is not in a travelable state. It is determined that the execution condition of the detection unit 5 is satisfied. This corresponds to, for example, when the main power is cut off and the passenger is about to get off.
- an operation example of the multi-function camera system when getting off will be described with reference to FIG.
- the power supply control unit 8 determines whether or not the door sensor 42 is detected (# 41).
- the door sensor 42 may be a door switch that simply detects whether the door 60 is fastened or released from the vehicle body, or a door handle (door knob provided in the vehicle interior).
- a door handle door knob provided in the vehicle interior.
- the presence / absence of an operation can be detected by detecting that a passenger including a driver touches a door handle (door knob) provided in the room.
- any detection means that can detect that the passenger is going out of the vehicle, preferably before the door 60 starts to open, may be used. If it is detected by the door sensor 42 that the passenger is about to get off, the power supply control unit 8 next determines whether or not the main power supply is turned on (# 42). If the main power is not turned on, at least the camera 1, the condition determination unit 3, the blind monitor unit 4, and the obstacle detection unit 5 are instructed to execute for a certain period (# 43). That is, the CPU 12c in the dormant state is activated in the same manner as described for the personal authentication unit 6. This fixed period may be the same period as when the personal authentication unit 6 functions or may be a different period.
- the “certain period” is set, but the present invention is not limited to this. After the CPU 12c is activated, the normal operation may be performed as it is, and another event such as the door 60 being closed or the door 60 being locked may be used as a trigger to return to the sleep state.
- the camera on the side where the door sensor 42 that detects that the passenger is about to get off is activated to be activated from the hibernation state without wasteful power consumption.
- the camera 1A installed on the driver seat door 60A is activated.
- the camera 1B installed on the passenger seat door 60B is activated.
- determination # 41 regarding whether or not the door sensor 42 is detected may be executed by the condition determination unit 3 or the obstacle detection unit 5 instead of the power supply control unit 8. This is because the condition determination unit 3 determines that the execution condition of the obstacle detection unit 5 is satisfied when the main power is turned on, and thus the condition determination unit 3 and the obstacle detection unit 5 are already operating. Substantially, it is sufficient that the interrupt reception function of the CPU 12c receives the detection result of the door sensor 42. Therefore, it is not necessary to strictly limit the functional unit that executes the determination process # 41 to any one functional unit. Depending on the progress of the program, it may be configured to be executable by a plurality of functional units as appropriate.
- the condition determination unit 3 determines whether the degree of opening of the door 60 is less than the priority threshold value (# 44). That is, it is determined whether the opening degree of the door 60A (or 60B) is smaller than a priority threshold value that is a predetermined opening degree. Since the passenger gets off when the opening degree of the door 60A is small, the door 60A is further opened in the direction of the arrow Y in FIG. At this time, if there is an obstacle such as a curb near the door 60A, the door 60A may come into contact with the obstacle. Accordingly, the condition determination unit 3 determines the priority condition according to the degree of opening of the door 60A (or 60B) so as to prioritize the image recognition of the front side F within the photographing range E (# 44, # 46). .
- the condition determination unit 3 gives priority to image recognition on the rear side R in the shooting range E.
- the priority condition is determined according to the degree of opening of the door 60A (or 60B) (# 44, # 47).
- a moving body such as a pedestrian, a bicycle, or another vehicle approaching from the direction of the arrow Z in FIG. 8 (rear of the vehicle 100) may come into contact with the opened door 60A (60B). This is because it is necessary to detect a moving body.
- the opening degree of the door 60A (60B) is equal to or greater than a predetermined opening threshold value, the significance of obstacle detection decreases as shown in FIG. That is, the moving body approaching from the rear of the vehicle 100 does not enter the imaging range E, and the front side F of the imaging range E images the vehicle 100. Therefore, when the opening degree of the door 60A (60B) exceeds a predetermined opening threshold value, the obstacle detection process is ended (# 45).
- the obstacle detection unit 5 issues a door opening suppression instruction to the door control system 40 when an obstacle is detected (# 48, # 49).
- the door ECU 41 controls the opening / closing actuator 44 to suppress the opening / closing of the door 60.
- the obstacle detection unit 5 instructs the alarm device 30 such as a buzzer to issue an alarm (# 50), and requests the blind monitor unit 4 to display a captured image. Is output (# 51).
- the display device 20 to display the captured image.
- the detection unit 5 detects an obstacle.
- the processing may proceed to processing # 45 and # 47 without executing processing # 44, and the rear side R may be prioritized. Since the door sensor 42 that has output the detection result is clear as to which door 60 is the target, obstacle detection according to the door 60 is possible.
- the case where the camera 1 is installed on the door handle 61 has been described as an example so that the configuration of the multi-function camera system 10 and its utility can be easily understood.
- a person skilled in the art will be able to construct a similar multi-function camera system 10 by installing the camera 1 on a door mirror with reference to the embodiment. Such modifications are also within the technical scope of the present invention. Belongs to.
- the shooting range E differs depending on whether the side mirror is in use or in the retracted state.
- it is possible to configure the multi-function camera system 10 that exhibits a plurality of functions by detecting the state of the side mirror and executing image processing using a captured image corresponding to the state of the side mirror.
- the detection of the state of the side mirror may be performed by recognizing the existence position of the part of the vehicle 100 in the photographed image by image processing in the same manner as the opening degree calculation unit 7.
- the camera 1 is installed on the most side of the side mirror in use and the viewing angle is about 180 to 190 degrees, a shooting range E that is almost equivalent to that when the camera 1 is installed on the door handle 61 is secured. Is done. Even when the side mirror is in the retracted state, an imaging range E (rear side R) that is substantially the same as that when the camera 1 is installed on the door handle 61 is secured on the rear side of the vehicle 100 relative to the side mirror. Therefore, although the partial function of the embodiment described above is limited by the attitude of the door mirror, the multifunction camera system 10 using the camera 1 that is fixed to the vehicle part and does not change the attitude of the camera itself is sufficient. Is feasible.
- a technique capable of applying a vehicle-mounted camera to a plurality of uses at low cost without providing a mechanism for increasing the vehicle weight is realized.
- the present invention can be used for a multi-function camera system in which a camera mounted on a vehicle can be used for a plurality of purposes.
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Abstract
Description
車両の側面において車両部品に固定され、当該車両の側方を撮影するカメラと、
複数の機能部の実行条件を判定する条件判定部と、
前記条件判定部の判定結果に基づいて実行され、前記カメラの撮影画像に基づいて、前記車両の周辺に存在する又は前記車両に接近する障害物を画像認識により検出する前記機能部としての障害物検出部と、
前記条件判定部の判定結果に基づいて実行され、前記カメラの撮影画像に基づいて、前記車両に到達した人物が前記車両に予め登録された利用者であるか否かを画像認識により認証する前記機能部としての個人認証部と、を有する点にある。
3:条件判定部
4:ブラインドモニタ部
5:障害物検出部
6:個人認証部
7:開度演算部
8:電源制御部
10:多機能カメラシステム
20:表示装置
60、60A、60B、60C、60D:ドア(車両部品)
60A、60B:スイングドア
61:ドアハンドル(車両部品)
100:車両
E、E1、E2:撮影範囲
F、F1、F2:前方側
R、R1、R2:後方側
Claims (9)
- 車両の側面において車両部品に固定され、当該車両の側方を撮影するカメラと、
複数の機能部の実行条件を判定する条件判定部と、
前記条件判定部の判定結果に基づいて実行され、前記カメラの撮影画像に基づいて、前記車両の周辺に存在する又は前記車両に接近する障害物を画像認識により検出する前記機能部としての障害物検出部と、
前記条件判定部の判定結果に基づいて実行され、前記カメラの撮影画像に基づいて、前記車両に到達した人物が前記車両に予め登録された利用者であるか否かを画像認識により認証する前記機能部としての個人認証部と、を有する多機能カメラシステム。 - 前記条件判定部は、
前記車両が一時停車を含む走行中、又は施錠されずに停車している際には前記障害物検出部の実行条件が成立すると判定し、
前記車両が前記走行中ではなく、施錠されて停車している際には前記個人認証部の実行条件が成立すると判定する、請求項1に記載の多機能カメラシステム。 - 前記条件判定部の判定結果に基づいて実行され、前記車両の運転者からの死角の情景を含む、前記カメラにより撮影された撮影画像を車室内の表示装置へ出力する前記機能部としてのブラインドモニタ部を備え、
前記条件判定部は、前記運転者を含む前記車両の搭乗者により前記撮影画像の表示を指示された際、又は前記障害物検出部により障害物が認識された際に前記ブラインドモニタ部の実行条件が成立すると判定する請求項1又は2に記載の多機能カメラシステム。 - 前記条件判定部は、前記車両の前方側の側方に対する画像認識と、後方側の側方に対する画像認識との何れを優先的に実行するかの優先条件を判定し、
前記障害物検出部は、前記条件判定部の判定結果に基づいて、前方側と後方側との何れかに対する画像認識を優先的に実行する請求項1~3の何れか一項に記載の多機能カメラシステム。 - 前記車両は、前記車両の前方側を支点として回動するスイングドアを有し、
前記条件判定部は、前記スイングドアの開き度合いに応じて前記優先条件を判定するものであり、前記スイングドアの開き度合いが所定の開き度合いよりも小さい時には前方側の画像認識を優先させ、前記スイングドアの開き度合いが所定の開き度合い以上の時には後方側の画像認識を優先させると判定する請求項4に記載の多機能カメラシステム。 - 前記カメラの撮影画像に基づいて、前記スイングドアの開き度合いを演算する開度演算部を有し、
前記カメラは前記スイングドア又は前記スイングドアに設置される車両部品に設置される請求項5に記載の多機能カメラシステム。 - 前記カメラ、前記条件判定部、前記複数の機能部は、前記車両の主電源が投入されている際に機能するものであり、
当該多機能カメラシステムは、さらに、前記車両の主電源が投入されているか否かに拘わらず機能し、前記車両の主電源が投入されていない時であっても前記車両のドアへの操作に応じて、前記カメラ、前記条件判定部、前記各機能部の少なくとも1つを機能させる電源制御部を備える請求項1~6の何れか一項に記載の多機能カメラシステム。 - 前記車両のドアへの操作は、前記車両に到達した人物が前記車両の車室外に設けられたドアハンドルに触れたことである請求項7に記載の多機能カメラシステム。
- 前記車両のドアへの操作は、前記車両の運転者を含む前記車両の搭乗者が前記車両の車室内に設けられたドアハンドルに触れたことである請求項7に記載の多機能カメラシステム。
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP20100829816 EP2500218B1 (en) | 2009-11-13 | 2010-10-20 | Multi-function camera system |
| US13/509,186 US20120217764A1 (en) | 2009-11-13 | 2010-10-20 | Multi-function camera system |
| CN201080051506.5A CN102596656B (zh) | 2009-11-13 | 2010-10-20 | 多功能摄像机系统 |
| KR1020127014779A KR101369866B1 (ko) | 2009-11-13 | 2010-10-20 | 다기능 카메라 시스템 |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2009-259767 | 2009-11-13 | ||
| JP2009259767A JP5360491B2 (ja) | 2009-11-13 | 2009-11-13 | 多機能カメラシステム |
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| Publication Number | Publication Date |
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| WO2011058856A1 true WO2011058856A1 (ja) | 2011-05-19 |
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| PCT/JP2010/068507 Ceased WO2011058856A1 (ja) | 2009-11-13 | 2010-10-20 | 多機能カメラシステム |
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| Country | Link |
|---|---|
| US (1) | US20120217764A1 (ja) |
| EP (1) | EP2500218B1 (ja) |
| JP (1) | JP5360491B2 (ja) |
| KR (1) | KR101369866B1 (ja) |
| CN (1) | CN102596656B (ja) |
| WO (1) | WO2011058856A1 (ja) |
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Also Published As
| Publication number | Publication date |
|---|---|
| JP2011105058A (ja) | 2011-06-02 |
| US20120217764A1 (en) | 2012-08-30 |
| CN102596656A (zh) | 2012-07-18 |
| KR20120091330A (ko) | 2012-08-17 |
| EP2500218A1 (en) | 2012-09-19 |
| EP2500218A4 (en) | 2013-05-08 |
| JP5360491B2 (ja) | 2013-12-04 |
| CN102596656B (zh) | 2014-05-07 |
| EP2500218B1 (en) | 2014-04-23 |
| KR101369866B1 (ko) | 2014-03-05 |
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