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WO2009095989A1 - Dispositif d'acquisition d'images, procédé d'acquisition d'images, programme d'acquisition d'images et support de stockage - Google Patents

Dispositif d'acquisition d'images, procédé d'acquisition d'images, programme d'acquisition d'images et support de stockage Download PDF

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Publication number
WO2009095989A1
WO2009095989A1 PCT/JP2008/051265 JP2008051265W WO2009095989A1 WO 2009095989 A1 WO2009095989 A1 WO 2009095989A1 JP 2008051265 W JP2008051265 W JP 2008051265W WO 2009095989 A1 WO2009095989 A1 WO 2009095989A1
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WO
WIPO (PCT)
Prior art keywords
camera
direction control
image acquisition
danger
image
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/JP2008/051265
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English (en)
Japanese (ja)
Inventor
Kohei Ito
Ryujiro Fujita
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Pioneer Corp
Original Assignee
Pioneer Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Pioneer Corp filed Critical Pioneer Corp
Priority to PCT/JP2008/051265 priority Critical patent/WO2009095989A1/fr
Publication of WO2009095989A1 publication Critical patent/WO2009095989A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • 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

Definitions

  • the present invention relates to a technique for acquiring an image by controlling a camera.
  • the in-vehicle multipurpose device operates for other purposes such as communication with a driver, and thus the direction of the camera frequently changes. In this case, it is necessary to appropriately control the direction of the camera.
  • Examples of problems to be solved by the present invention include the above. It is an object of the present invention to reliably acquire an image at the time of an accident or danger in an in-vehicle camera system with a variable shooting direction.
  • the invention according to claim 1 is an image acquisition device that is mounted on a moving body and electromagnetically connected to a camera direction control device that controls a shooting direction by a camera and acquires an image shot by the camera.
  • Danger information acquisition means for acquiring danger information that is information relating to a dangerous state
  • direction control means for transmitting a direction control signal of the camera to the camera direction control device based on the danger information acquired by the danger information acquisition means And.
  • a method for controlling an image acquisition device that is mounted on a moving body and electromagnetically connected to a camera direction control device that controls a shooting direction by a camera and acquires an image shot by the camera.
  • a risk information acquisition step of acquiring danger information that is information relating to a dangerous state, and transmitting a camera direction control signal to the camera direction control device based on the danger information acquired by the danger information acquisition means.
  • a direction control step of acquiring danger information that is information relating to a dangerous state, and transmitting a camera direction control signal to the camera direction control device based on the danger information acquired by the danger information acquisition means.
  • the invention according to claim 12 is executed by an image acquisition device that is mounted on a moving body and electromagnetically connected to a camera direction control device that controls a shooting direction by a camera and acquires an image shot by the camera.
  • An image acquisition program for acquiring danger information which is information relating to a dangerous state, and direction control of the camera to the camera direction control device based on the danger information acquired by the danger information acquisition means.
  • FIG. 1 is a conceptual diagram of an image acquisition device, a camera direction control device, and a camera mounted on a vehicle. It is a figure which shows an example of the movable range of a camera direction control apparatus. It is a figure which shows an example of the limiting method of the movable range of a camera direction control apparatus. It is a flowchart of an image acquisition process. It is a flowchart of the image acquisition process in a modification.
  • System controller 22 CPU 31 Disk drive 36 Data storage unit 38 Communication device 40 Display unit 60 Input device 100 Image acquisition device 200 Camera direction control device 300 Camera 400 Vehicle
  • an image acquisition device is mounted on a moving body and electromagnetically connected to a camera direction control device that controls a shooting direction by a camera, and acquires an image captured by the camera.
  • a risk information acquisition unit that acquires risk information that is information related to a dangerous state, and transmits a camera direction control signal to the camera direction control device based on the risk information acquired by the risk information acquisition unit.
  • Direction control means that
  • the image acquisition device described above is, for example, a vehicle-mounted navigation device mounted on a moving body such as an automobile, and includes a camera and a camera direction control device, and includes a danger information acquisition unit and a direction control unit.
  • the CPU Central Processing Unit
  • the danger information acquisition means acquires danger information that is information related to a dangerous state.
  • the direction control means transmits a camera direction control signal to the camera direction control device based on the danger information acquired by the danger information acquisition means.
  • the danger information is information relating to a dangerous zone
  • the direction control unit determines whether the dangerous zone is in the vicinity, and determines that the dangerous zone is in the vicinity.
  • the direction control signal is transmitted.
  • danger zones such as intersections and curves, where accidents occur frequently, the probability of accidents is relatively high. Therefore, by controlling the camera for shooting when approaching the danger zone, it is possible to acquire an image of an accident or danger without missing it.
  • the direction control signal is a signal for controlling the camera to face the danger zone.
  • the direction control means considers that the danger zone is ahead of the moving direction of the moving body. Thereby, even when the direction of the danger zone cannot be accurately obtained, the direction of the camera can be determined, and the camera control process can be simplified and speeded up.
  • the direction control signal is a signal that limits a movable range of the camera direction control device so that an imaging range includes at least the danger zone.
  • the camera and the camera direction control device are allowed to operate in a range where the danger zone can be photographed.
  • the direction control signal limits the movable range to at least a range within half of the camera angle of view from the direction of the danger zone.
  • the danger information acquisition unit acquires a fatigue state of the user as danger information
  • the direction control unit controls the camera when the degree of the fatigue state is equal to or greater than a predetermined level. It controls so that it may point to the front of the said mobile body.
  • the user's fatigue state is measured on a constant basis, and the direction control of the camera is performed when the measured value is equal to or greater than a certain value. This also makes it possible to appropriately perform camera photography in a dangerous state.
  • the image acquisition device is mounted on a vehicle, and the danger information acquisition unit measures the degree of wobbling of the vehicle from the relative position of the white line in the image acquired from the camera.
  • the degree of wobbling is acquired as danger information.
  • the operation of the vehicle becomes unstable, and as a result, the vehicle fluctuates. Therefore, it is possible to appropriately determine whether or not the current traveling state is dangerous by using this fluctuation condition as danger information.
  • the image acquisition device is further mounted on a vehicle, and further includes an image storage unit that stores an image captured by the camera when an abnormality of the vehicle is detected.
  • the means stores the image data before the first time for detecting the abnormality and the image data from the abnormality detection until the second time.
  • the captured video is always held for a certain time, and when an abnormality occurs, the image for a certain time before the occurrence of the abnormality and the image for a certain time after the occurrence of the abnormality are stored.
  • the direction control unit stops transmission of a user operation signal to the camera direction control device during photographing in a dangerous state. As a result, it is possible to acquire an image of an accident or danger without being affected by the user operation.
  • FIG. 1 shows a conceptual diagram of an image acquisition system in the present embodiment.
  • the image acquisition system includes an image acquisition device 100, a camera direction control device 200, and a camera 300.
  • the image acquisition apparatus 100 acquires information such as a position (hereinafter referred to as “danger information”) regarding a zone (hereinafter referred to as “dangerous zone”) that is assumed to have a relatively high probability of occurrence of an accident. Then, a signal for controlling the direction of the camera (hereinafter referred to as “direction control signal”) is generated and transmitted to the camera direction control device 200 so that an image of the danger information can be acquired. And the image acquisition apparatus 100 preserve
  • the danger information is acquired by the danger information acquisition unit
  • the direction control signal is generated and transmitted by the direction control unit
  • the image data is stored
  • the camera direction control device 200 is a device that adjusts the direction of the camera 300 installed on the device based on the direction control signal received from the image acquisition device 100.
  • the camera direction control device 200 can point the camera 300 in an arbitrary direction, and can be configured by a free pan head, for example.
  • the camera direction control device 200 transmits image data captured by the camera 300 to the image acquisition device 100 as necessary.
  • the camera 300 is an optical machine that has a certain angle of view and photographs a subject within the angle of view.
  • the camera 300 is installed on the camera direction control device 200.
  • the camera 300 mainly captures a subject as a moving image, and the captured image data is transmitted to the image acquisition device 100 by the camera direction control device 200.
  • the image acquisition device 100 may include a camera direction control device 200.
  • the image acquisition apparatus 100 exchanges direction control signals and image data with a portion corresponding to the camera direction control apparatus 200, for example, via a bus in the apparatus.
  • the camera direction control device 200 and the camera 300 may be installed on the front and rear sides of the vehicle. In this case, there are two camera direction control devices 200 and two cameras 300, respectively.
  • the camera direction control device 200 and the camera 300 may be realized by a single multipurpose device.
  • the “multipurpose device” refers to a machine or device that autonomously performs actions such as communication with a user and photographing a scenery outside a vehicle.
  • the multipurpose device may have a function of interlocking with the navigation device and a function of reproducing music or video content as necessary.
  • FIG. 2 shows the configuration of the image acquisition device 100.
  • the image acquisition device 100 includes a self-supporting positioning device 10, a GPS receiver 18, a system controller 20, a disk drive 31, a data storage unit 36, a communication interface 37, a communication device 38, a display unit 40, an audio.
  • An output unit 50 and an input device 60 are provided.
  • the image acquisition device 100 can be suitably applied to, for example, a navigation device.
  • the self-supporting positioning device 10 includes an acceleration sensor 11, an angular velocity sensor 12, and a distance sensor 13.
  • the acceleration sensor 11 is made of, for example, a piezoelectric element, detects vehicle acceleration, and outputs acceleration data.
  • the angular velocity sensor 12 is composed of, for example, a vibrating gyroscope, detects the angular velocity of the vehicle when the direction of the vehicle is changed, and outputs angular velocity data and relative azimuth data.
  • the distance sensor 13 measures a vehicle speed pulse composed of a pulse signal generated with the rotation of the vehicle wheel.
  • the GPS receiver 18 receives radio waves 19 carrying downlink data including positioning data from a plurality of GPS satellites.
  • the positioning data is used to detect the absolute position of the vehicle from latitude and longitude information.
  • the system controller 20 includes an interface 21, a CPU (Central Processing Unit) 22, a ROM (Read Only Memory) 23, and a RAM (Random Access Memory) 24, and controls the entire image acquisition apparatus 100.
  • a CPU Central Processing Unit
  • ROM Read Only Memory
  • RAM Random Access Memory
  • the interface 21 performs an interface operation with the acceleration sensor 11, the angular velocity sensor 12, the distance sensor 13, and the GPS receiver 18. From these, vehicle speed pulses, acceleration data, relative azimuth data, angular velocity data, GPS positioning data, absolute azimuth data, and the like are input to the system controller 20.
  • the CPU 22 controls the entire system controller 20.
  • the ROM 23 includes a nonvolatile memory (not shown) in which a control program for controlling the system controller 20 is stored.
  • the RAM 24 stores various data such as route data preset by the user via the input device 60 so as to be readable, and provides a working area to the CPU 22.
  • a system controller 20 a disk drive 31 such as a CD-ROM drive or a DVD-ROM drive, a data storage unit 36, a communication interface 37, a display unit 40, an audio output unit 50 and an input device 60 are mutually connected via a bus line 30. It is connected to the.
  • the disk drive 31 reads and outputs content data such as music data and video data from a disk 33 such as a CD or DVD under the control of the system controller 20.
  • the disk drive 31 may be either a CD-ROM drive or a DVD-ROM drive, or may be a CD and DVD compatible drive.
  • the data storage unit 36 is configured by, for example, an HDD or the like, and stores various data used for navigation processing such as map data.
  • the data storage unit 36 stores danger information.
  • the data storage unit 36 stores image data taken by the camera 300 as necessary.
  • the communication device 38 includes, for example, an FM tuner, a beacon receiver, a mobile phone, a dedicated communication card, and the like, and is distributed from a VICS (Vehicle Information Communication System) center or the like (hereinafter referred to as “VICS information”). Is acquired from the radio wave 39.
  • VICS information Vehicle Information Communication System
  • the interface 37 performs an interface operation of the communication device 38 and inputs the VICS information to the system controller 20 or the like.
  • the communication device 38 performs communication processing of image data and direction control signals with the camera direction control device 200.
  • the communication apparatus 38 acquires danger information from the center which has the server installed on communication networks, such as the internet, as needed. Acquisition of danger information is executed, for example, regularly or by a user operation.
  • the communication apparatus 38 transmits the danger information regarding the danger zone which the user registered to the above-mentioned center as needed, and provides the danger information.
  • the danger information to be transmitted to the center is not limited to the information related to the dangerous zone registered by the user. For example, when the image acquisition apparatus 100 detects an abnormal shake or the like during traveling, the information on the detected point is transmitted. Also good.
  • the display unit 40 displays various display data on a display device such as a display under the control of the system controller 20. Specifically, the system controller 20 reads map data from the data storage unit 36. The display unit 40 displays the map data read from the data storage unit 36 by the system controller 20 on the display screen.
  • the display unit 40 is composed of a graphic controller 41 that controls the entire display unit 40 based on control data sent from the CPU 22 via the bus line 30 and image information that can be displayed immediately, such as a VRAM (VideoRAMRAM) memory.
  • a buffer memory 42 that temporarily stores, a display control unit 43 that controls display of a display 44 such as a liquid crystal display or a CRT (Cathode Ray Tube) based on image data output from the graphic controller 41, and a display 44 are provided.
  • the display 44 functions as an image display unit, and includes, for example, a liquid crystal display device having a diagonal size of about 5 to 10 inches and is mounted near the front panel in the vehicle.
  • the audio output unit 50 performs D / A (Digital-to-Analog) conversion of audio digital data sent from the CD-ROM drive 31, DVD-ROM 32, RAM 24, or the like via the bus line 30 under the control of the system controller 20.
  • a D / A converter 51 to perform an amplifier (AMP) 52 that amplifies the audio analog signal output from the D / A converter 51, and a speaker 53 that converts the amplified audio analog signal into sound and outputs the sound into the vehicle. It is prepared for.
  • AMP amplifier
  • the input device 60 includes keys, switches, buttons, a remote controller, a voice input device, and the like for inputting various commands and data.
  • the input device 60 is arranged around the front panel and the display 44 of the main body of the in-vehicle electronic system mounted in the vehicle.
  • the display 44 is a touch panel system
  • the touch panel provided on the display screen of the display 44 also functions as the input device 60.
  • CPU 22 and the like in FIG. 2 correspond to direction control means, danger information acquisition means, and image storage means in the present invention.
  • image acquisition method Next, an image acquisition method performed by the image acquisition apparatus 100 in FIG. 2 will be specifically described.
  • the image acquisition device 100 will be described as being attached to a vehicle and functioning as a navigation device.
  • a method for acquiring information about a dangerous zone that is a subject of photographing of an acquired image, that is, risk information will be described.
  • the image acquisition apparatus 100 holds information relating to the danger zone, that is, danger information, in advance in the data storage unit 36 together with map data, which is various data used for navigation processing, for example.
  • a dangerous zone is a zone where the probability of a traffic accident is assumed to be relatively high. Specifically, it is a sharp curve, an intersection with many roads, an intersection without a signal, road regulations due to construction, and other obstacles. A zone having things or the like can be considered as an example.
  • the danger information is linked with the position information of the map data, for example. More specifically, when map data such as roads and intersections are assigned IDs, each ID is associated with a flag indicating a dangerous zone and stored in the database.
  • the danger information may be periodically acquired from a server installed on a communication network such as the Internet or a closed network, for example, in addition to being stored in advance in the data storage unit 36 or the like.
  • the image acquisition device 100 acquires the danger information from the server described above by the communication device 38, and periodically updates the danger information held in the data storage unit 36. Thereby, the user can use the danger information reflecting the latest situation.
  • only danger information near the current position may be received one by one based on the current position information.
  • the selection of the danger information based on the current position may be performed by the server on the center side or the image acquisition apparatus 100.
  • the danger information may be registered by the user.
  • the user may designate a dangerous zone with the input device 60 of the image acquisition device 100, and register map data such as an intersection corresponding to the designated dangerous zone as dangerous information.
  • the CPU 22 determines whether any danger zone exists nearby based on the danger zone position information included in the danger information of each danger zone and the current position information of the vehicle acquired by the GPS receiver 18. .
  • the determination as to whether the danger zone exists nearby can be made by, for example, calculating whether each danger zone exists within a predetermined distance from the current location.
  • the above-described determination processing target may be limited only to a dangerous zone existing on or near the destination route.
  • FIG. 3 shows a conceptual diagram of the image acquisition device 100, the camera direction control device 200, and the camera 300 mounted on the vehicle 400.
  • each position in the vehicle 400 of FIG. 3 is an example, and is not limited to this.
  • the camera direction control device 200 and the camera 300 can operate as necessary.
  • the camera direction control device 200 and the camera 300 may be installed inside or outside the vehicle 400.
  • the camera 300 has a certain angle of view ⁇ and is located within the angle of view ⁇ and can be imaged (hereinafter referred to as “imaging range”), that is, the left boundary line 90 a and the right boundary.
  • imaging range A subject such as a danger zone in a range located between the lines 90b can be photographed, and image data can be generated mainly as a moving image.
  • the camera direction control device 200 can rotate in the direction indicated by the arrow based on the direction control signal received from the image acquisition device 100, and the camera direction control device 200 rotates to change the direction of the camera 300. Therefore, the shooting range of the camera 300 can be changed.
  • the image acquisition device 100 transmits the direction control signal to rotate the camera direction control device 200 so that the camera 300 faces in the direction of the specified dangerous zone position. As a result, the camera 300 can take an image of the danger zone.
  • the image acquisition device 100 receives the image data acquired by the camera 300 from the camera 300 or the camera direction control device 200 via the communication device 38 or the like.
  • the image acquisition apparatus 100 does not perform control to direct the direction of the camera 300 toward the danger zone, but instead captures the range in which the camera direction control apparatus 200 can rotate (hereinafter referred to as “movable range”). Control limited to the range included in the danger zone may be performed.
  • FIG. 4 shows an example of the movable range of the camera direction control device 200 that includes the danger zone in the imaging range. As shown in FIG. 4, the rotational movement of the camera direction control device 200 in the right direction is such that the left boundary line 90xa of the imaging range of the camera 300 does not exceed the danger zone, that is, the left border line 90xa is on the right side of the danger zone. It is limited to the range which is not located in.
  • the rotational movement of the camera direction control device 200 in the left direction is performed until the right boundary line 90yb of the imaging range of the camera 300 does not exceed the danger zone, that is, the range where the left boundary line 90yb is not located on the left side of the danger zone.
  • the camera direction control device 200 and the camera 300 are realized as multipurpose devices, and even when actions such as communication with the user and photographing of a scenery outside the vehicle are autonomously performed, the danger zone is in the angle of view of the camera 300. These actions can be continued as long as In the above example, the imaging range of the camera 300 is limited to a range including all of the dangerous zones.
  • the present invention is not limited to this.
  • the movable range may be set so that at least half of the dangerous zones are included in the imaging range. You may relax and restrict.
  • the direction control of the camera 300 may be limited to the front when it is determined that the danger zone exists nearby.
  • danger information is stored in association with a specific road or intersection
  • the direction of the danger zone may not be accurately identified.
  • the direction of the camera 300 can be determined in the direction where the danger zone is most likely to exist, and the processing can be simplified and speeded up. it can.
  • the angle of view ⁇ of the camera 300 is half (1/2) from the direction of the dangerous zone.
  • the left and right movable ranges of the camera direction control device 200 may be included. This will be described in detail with reference to FIG. FIG. 5 shows a conceptual diagram of the imaging range of the camera 300. As shown in FIG. 5, the imaging range when the danger zone is directly in front is formed by the left boundary line 90a and the right boundary line 90b using the angle of view ⁇ .
  • the imaging range can capture at least half of the danger zone. That is, when the camera direction control device 200 is moved to the left from the front of the danger zone by a half of the angle of view ⁇ , the imaging range is a range formed by the left boundary line 90va and the right boundary line 90vb, and the camera direction control device 200 Is moved from the front of the danger zone to the right by half of the angle of view ⁇ , the imaging range is a range formed by the left boundary line 90wa and the right boundary line 90wb.
  • the direction control of the camera 300 can be appropriately executed in a range including the danger zone in the imaging range of the camera 300.
  • the camera direction control device 200 when the camera direction control device 200 is controlled based on the danger information, a user operation on the camera 300 or the camera direction control device 200 may not be accepted. As a result, it is possible to reliably perform shooting in the dangerous zone without being affected by the user operation.
  • Step S1 corresponds to the danger information acquisition means
  • steps S2 and S3 correspond to the direction control means
  • steps S4 and S5 correspond to the image storage means. Further, the process shown in the flowchart is repeatedly executed.
  • the CPU 22 obtains danger information related to a spontaneous frequent occurrence point or the like (step S1).
  • the danger information acquisition method may be associated with map data in advance and stored as a database, or the danger information may be acquired from the center periodically or according to the current position information.
  • the CPU 22 determines whether or not there is a danger zone near the vehicle (step S2). In this determination, for example, when danger information is stored in association with a road or an intersection, it can be determined that a dangerous zone exists when the vehicle enters the road or the intersection.
  • the CPU 22 determines that there is no danger zone nearby (step S2; No)
  • the CPU 22 does not particularly control the direction of the camera 300. Therefore, when the camera direction control device 200 and the camera 300 are realized as multi-purpose devices, communication with the user is performed autonomously or by user operation regardless of the control of the image acquisition device 100, You can shoot landscapes.
  • the CPU 22 determines the direction of the camera 300 from the danger information corresponding to the danger zone, that is, determines the rotational position of the camera direction control device 200. Then, a direction control signal is transmitted to the camera direction control device 200 (step S3).
  • the movable range of the camera direction control device 200 may be limited.
  • the camera that has received the direction control signal includes the danger zone in the imaging range, but is controlled so that the vehicle (moving body) on which the camera is mounted enters the imaging range until the vehicle moves away from the danger zone by a predetermined distance or more. Also good. Specifically, for example, it is conceivable to perform control so as to continuously change the rotational position of the camera control device 200 according to the moving direction and speed of the vehicle using vehicle speed information and the like.
  • information indicating the degree of danger for example, when a plurality of danger zones exist near the vehicle at the same time, prioritization may be performed according to the degree of danger.
  • a method for indicating the degree of danger for example, ranking by the frequency of occurrence of accidents that occurred in the past, ranking by the number of numbers registered as dangerous zones by the user, and the like can be considered.
  • the CPU 22 determines whether or not an abnormality has occurred in the vehicle (step S4).
  • This determination can be realized, for example, by monitoring the presence or absence of an impact by detecting a sudden change in speed by the acceleration sensor 11.
  • the image acquisition apparatus 100 further includes an infrared device (not shown)
  • it can be realized by monitoring whether an obstacle or the like approaches within a predetermined distance in front of the vehicle using the infrared device.
  • it is also possible to detect the degree of vehicle shake by performing predetermined image processing on image data acquired by the camera 300 and monitor the degree.
  • step S4 the CPU 22 returns the process to step S1, and the danger zone is detected. Monitor again if it is not near the vehicle.
  • the CPU 22 saves image data before and after the occurrence of the abnormality (step S5). Specifically, the CPU 22 takes images at a predetermined time before the occurrence of the abnormality (hereinafter referred to as “first time”) and a predetermined time after the occurrence of the abnormality (hereinafter referred to as “second time”). Save the image data.
  • first time a predetermined time before the occurrence of the abnormality
  • second time a predetermined time after the occurrence of the abnormality
  • Save the image data This is because, for example, the image acquisition apparatus 100 always holds an image acquired by the camera 300 in the buffer for the first time or longer, that is, at least the captured image data for the first time is temporarily stored in the data storage unit 36 or the like. It can be realized by keeping it. Thereby, the video at the time of occurrence of abnormality can be accurately saved, and can be used as traffic information thereafter.
  • step S4 may be omitted, and if a dangerous zone exists nearby, the image data captured by the camera 300 may be uniformly stored regardless of whether or not an abnormality has occurred in the vehicle. Further, instead of the image acquisition device 100 storing the image data as in step S5, the video may be uploaded to the center by the communication device 38 or the like.
  • the image acquisition device is connected to the camera and the camera direction control device, and includes the danger information acquisition unit and the direction control unit.
  • the danger information acquisition means acquires danger information that is information related to a dangerous state.
  • the direction control means transmits a camera direction control signal to the camera direction control device based on the danger information acquired by the danger information acquisition means.
  • the image acquisition apparatus 100 controls the direction of the camera 300 depending on whether or not a dangerous zone such as a high-accident location is nearby, and takes a picture of the vicinity of the dangerous zone.
  • a dangerous zone such as a high-accident location
  • the user's (driver) 's fatigue state is monitored, and when a predetermined symptom appears, the direction of the camera 300 is controlled to obtain an image that can be seen from the vehicle. You can also.
  • the fatigue state of the user is defined as “dangerous state” together with the danger zone.
  • the image acquisition device 100 may include a biological sensor, and may be determined based on the measurement result of the user's heart rate and other biological information.
  • the presence or absence of fatigue may be determined based on the driving time, or the user's face may be photographed, and the presence or absence of fatigue may be determined based on the number of blinks.
  • the fatigue state may be determined by fixing the orientation of the camera 300 to the front of the vehicle and detecting the wobbling of the vehicle based on the image data acquired from the camera 300. In this case, for example, the wobbling of the vehicle can be determined by a change in the position of a white line on the road.
  • FIG. 7 shows a flowchart of image acquisition processing according to the modification.
  • the flowchart of FIG. 7 is executed by the CPU 22 of the image acquisition apparatus 100, step S101 corresponds to the danger information acquisition unit, steps S102 and S103 correspond to the direction control unit, and steps S104 and S105 correspond to the image storage unit. Applicable.
  • the CPU 22 acquires information about the user's fatigue state (step S101).
  • the heart rate acquired by the biological sensor as described above can be cited as an example.
  • the CPU 22 determines whether the user has fatigue symptoms (step S102). And when it determines with there being no symptom of fatigue (step S102; No), CPU22 returns a process to step S101 and acquires the information regarding a user's fatigue state continuously.
  • step S102 if it is determined that the user has fatigue symptoms (step S102; Yes), the direction of the camera 300 is determined and a direction control signal is transmitted to the camera direction control device 200 (step S103).
  • the CPU 22 may decide that the direction of the camera 300 is the front of the vehicle.
  • the camera 300 may be directed toward the user and an image of the user's own state may be taken.
  • step S104 monitors whether there is an abnormality in the vehicle while it is determined that the user has a fatigue symptom or for a predetermined time from the processing in step S102 (step S104). This process is the same as step S4 shown in FIG.
  • step S104; No the CPU 22 returns to the process of step S101 again to acquire the user's fatigue state.
  • step S105 image data storage processing
  • the present invention can be used for a navigation apparatus installed in a vehicle in which a camera is installed.

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Abstract

L'invention concerne un dispositif d'acquisition d'images relié à une caméra et à un dispositif de commande de direction de la caméra, et comprenant un moyen d'acquisition d'informations de danger et un moyen de commande de direction. Le moyen d'acquisition d'informations de danger acquiert des informations de danger, c'est-à-dire des informations relatives à une situation de danger. Le moyen de commande de direction transmet un signal de commande de direction de la caméra au dispositif de commande de direction de la caméra en fonction des informations de danger acquises par le moyen d'acquisition d'informations de danger. De ce fait, dans une situation où le taux d'occurrence d'accidents est relativement élevé selon les informations de danger, la caméra est commandée de façon à être prête à effectuer une prise de vues. Une vidéo peut donc être obtenue avec certitude au moment d'un accident ou d'une situation de danger.
PCT/JP2008/051265 2008-01-29 2008-01-29 Dispositif d'acquisition d'images, procédé d'acquisition d'images, programme d'acquisition d'images et support de stockage Ceased WO2009095989A1 (fr)

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CN103089577A (zh) * 2011-11-04 2013-05-08 艾默生环境优化技术公司 用于压缩机的油管理系统
US9181939B2 (en) 2012-11-16 2015-11-10 Emerson Climate Technologies, Inc. Compressor crankcase heating control systems and methods
US9353738B2 (en) 2013-09-19 2016-05-31 Emerson Climate Technologies, Inc. Compressor crankcase heating control systems and methods
US9810218B2 (en) 2009-09-24 2017-11-07 Emerson Climate Technologies Crankcase heater systems and methods for variable speed compressors
JP2017205317A (ja) * 2016-05-19 2017-11-24 Ｎｅｃエンベデッドプロダクツ株式会社 遊技機制御装置、遊技機制御方法、プログラム

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JP2005014686A (ja) * 2003-06-24 2005-01-20 Matsushita Electric Ind Co Ltd ドライブレコーダ
JP2006293558A (ja) * 2005-04-07 2006-10-26 Ntt Docomo Inc 事故情報取得システム
JP2007265101A (ja) * 2006-03-29 2007-10-11 Mitsubishi Fuso Truck & Bus Corp 車両用覚醒度推定装置
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Cited By (10)

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US9810218B2 (en) 2009-09-24 2017-11-07 Emerson Climate Technologies Crankcase heater systems and methods for variable speed compressors
CN103089577A (zh) * 2011-11-04 2013-05-08 艾默生环境优化技术公司 用于压缩机的油管理系统
CN103089577B (zh) * 2011-11-04 2016-04-27 艾默生环境优化技术公司 用于压缩机的油管理系统
US9551357B2 (en) 2011-11-04 2017-01-24 Emerson Climate Technologies Gmbh Oil management system for a compressor
US9181939B2 (en) 2012-11-16 2015-11-10 Emerson Climate Technologies, Inc. Compressor crankcase heating control systems and methods
US9851135B2 (en) 2012-11-16 2017-12-26 Emerson Climate Technologies, Inc. Compressor crankcase heating control systems and methods
US10801764B2 (en) 2012-11-16 2020-10-13 Emerson Climate Technologies, Inc. Compressor crankcase heating control systems and methods
US9353738B2 (en) 2013-09-19 2016-05-31 Emerson Climate Technologies, Inc. Compressor crankcase heating control systems and methods
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JP2017205317A (ja) * 2016-05-19 2017-11-24 Ｎｅｃエンベデッドプロダクツ株式会社 遊技機制御装置、遊技機制御方法、プログラム

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