WO2012035886A1 - 端末保持装置 - Google Patents
端末保持装置 Download PDFInfo
- Publication number
- WO2012035886A1 WO2012035886A1 PCT/JP2011/066956 JP2011066956W WO2012035886A1 WO 2012035886 A1 WO2012035886 A1 WO 2012035886A1 JP 2011066956 W JP2011066956 W JP 2011066956W WO 2012035886 A1 WO2012035886 A1 WO 2012035886A1
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- WO
- WIPO (PCT)
- Prior art keywords
- terminal device
- terminal
- holding
- acceleration
- acceleration sensor
- Prior art date
Links
- 230000001133 acceleration Effects 0.000 claims abstract description 120
- 238000001514 detection method Methods 0.000 claims abstract description 13
- 230000035515 penetration Effects 0.000 claims description 3
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- 238000000034 method Methods 0.000 description 47
- 238000009434 installation Methods 0.000 description 40
- 230000008569 process Effects 0.000 description 31
- 238000003702 image correction Methods 0.000 description 18
- 238000012937 correction Methods 0.000 description 12
- 238000012545 processing Methods 0.000 description 12
- 238000012986 modification Methods 0.000 description 10
- 230000004048 modification Effects 0.000 description 10
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- 238000012423 maintenance Methods 0.000 description 6
- 230000008859 change Effects 0.000 description 5
- 238000004891 communication Methods 0.000 description 4
- 239000002390 adhesive tape Substances 0.000 description 2
- 238000003384 imaging method Methods 0.000 description 2
- 239000004973 liquid crystal related substance Substances 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
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- 238000010191 image analysis Methods 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
Images
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C21/00—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00
- G01C21/26—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00 specially adapted for navigation in a road network
- G01C21/34—Route searching; Route guidance
- G01C21/36—Input/output arrangements for on-board computers
- G01C21/3602—Input other than that of destination using image analysis, e.g. detection of road signs, lanes, buildings, real preceding vehicles 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
- B60R11/02—Arrangements for holding or mounting articles, not otherwise provided for for radio sets, television sets, telephones, or the like; Arrangement of controls thereof
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
- F16M11/00—Stands or trestles as supports for apparatus or articles placed thereon ; Stands for scientific apparatus such as gravitational force meters
- F16M11/02—Heads
- F16M11/04—Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand
- F16M11/041—Allowing quick release of the apparatus
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
- F16M11/00—Stands or trestles as supports for apparatus or articles placed thereon ; Stands for scientific apparatus such as gravitational force meters
- F16M11/02—Heads
- F16M11/04—Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand
- F16M11/06—Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand allowing pivoting
- F16M11/10—Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand allowing pivoting around a horizontal axis
- F16M11/105—Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand allowing pivoting around a horizontal axis the horizontal axis being the roll axis, e.g. for creating a landscape-portrait rotation
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
- F16M11/00—Stands or trestles as supports for apparatus or articles placed thereon ; Stands for scientific apparatus such as gravitational force meters
- F16M11/02—Heads
- F16M11/04—Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand
- F16M11/06—Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand allowing pivoting
- F16M11/12—Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand allowing pivoting in more than one direction
- F16M11/14—Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand allowing pivoting in more than one direction with ball-joint
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
- F16M11/00—Stands or trestles as supports for apparatus or articles placed thereon ; Stands for scientific apparatus such as gravitational force meters
- F16M11/20—Undercarriages with or without wheels
- F16M11/2007—Undercarriages with or without wheels comprising means allowing pivoting adjustment
- F16M11/2021—Undercarriages with or without wheels comprising means allowing pivoting adjustment around a horizontal axis
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
- F16M13/00—Other supports for positioning apparatus or articles; Means for steadying hand-held apparatus or articles
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
- F16M13/00—Other supports for positioning apparatus or articles; Means for steadying hand-held apparatus or articles
- F16M13/02—Other supports for positioning apparatus or articles; Means for steadying hand-held apparatus or articles for supporting on, or attaching to, an object, e.g. tree, gate, window-frame, cycle
- F16M13/022—Other supports for positioning apparatus or articles; Means for steadying hand-held apparatus or articles for supporting on, or attaching to, an object, e.g. tree, gate, window-frame, cycle repositionable
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C21/00—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00
- G01C21/20—Instruments for performing navigational calculations
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C21/00—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00
- G01C21/26—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00 specially adapted for navigation in a road network
- G01C21/265—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00 specially adapted for navigation in a road network constructional aspects of navigation devices, e.g. housings, mountings, displays
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C21/00—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00
- G01C21/26—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00 specially adapted for navigation in a road network
- G01C21/34—Route searching; Route guidance
- G01C21/36—Input/output arrangements for on-board computers
- G01C21/3626—Details of the output of route guidance instructions
- G01C21/3647—Guidance involving output of stored or live camera images or video streams
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
- G01P15/00—Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T3/00—Geometric image transformations in the plane of the image
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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
- B60R2011/0001—Arrangements for holding or mounting articles, not otherwise provided for characterised by position
- B60R2011/0003—Arrangements for holding or mounting articles, not otherwise provided for characterised by position inside the vehicle
- B60R2011/0005—Dashboard
-
- 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
- B60R2011/0042—Arrangements for holding or mounting articles, not otherwise provided for characterised by mounting means
- B60R2011/008—Adjustable or movable supports
- B60R2011/0085—Adjustable or movable supports with adjustment by rotation in their operational position
- B60R2011/0089—Adjustable or movable supports with adjustment by rotation in their operational position around three axes, i.e. universally mounted
Definitions
- the present invention relates to a terminal holding device that installs a terminal device on a moving body.
- Patent Document 1 describes an example in which a portable navigation device is installed in a vehicle using a cradle.
- a smartphone has a GPS function, it often does not have a sensor such as a gyro sensor.
- An object of this invention is to provide the terminal holding
- the terminal holding device is in contact with the terminal device for attaching the terminal device to the vehicle and for detachably holding the terminal device by exposing the display unit of the terminal device.
- a holding unit having a surface, an acceleration sensor capable of detecting acceleration in a direction from the contact surface side toward the opposite side of the contact surface, and a supply unit for supplying a detection signal of the acceleration sensor to the terminal device And having.
- the terminal holding device includes an attaching portion for attaching to the vehicle, a holding portion for holding the terminal device detachably by exposing a display portion of the terminal device, and the holding portion.
- An acceleration sensor capable of detecting acceleration in a direction from the display unit side to the opposite side of the display unit held by the terminal device, and supply means for supplying a detection signal of the acceleration sensor to the terminal device And having.
- FIG. 1 It is the front view, side view, and back view of a terminal holding device concerning the 1st example. It is the other front view and back perspective view of the terminal holding
- maintenance apparatus based on 2nd Example is shown.
- the schematic structure of a terminal device is shown.
- the figure for demonstrating the malfunction which arises according to the installation position of a terminal device is shown.
- the figure for demonstrating the basic concept of the correction method of the picked-up image which concerns on 2nd Example is shown.
- the figure for demonstrating the correction method of the picked-up image based on 2nd Example more concretely is shown.
- photography direction of a camera with respect to the advancing direction of a vehicle is shown. It is a flowchart which shows the picked-up image correction process which concerns on 2nd Example. It is a flowchart which shows the picked-up image correction process which concerns on the modification of 2nd Example.
- the terminal holding device has an attachment portion for attachment to a vehicle, and a contact surface with the terminal device for holding the terminal device detachably by exposing the display portion of the terminal device.
- a holding unit having an acceleration sensor, an acceleration sensor capable of detecting acceleration in a direction from the contact surface side toward the opposite side of the contact surface, and a supply means for supplying a detection signal of the acceleration sensor to the terminal device Have.
- the terminal holding device is attached to the vehicle by the mounting portion, and holds the terminal device by the holding portion.
- the holding unit has a contact surface with the terminal device for exposing and detaching the display unit of the terminal device.
- the terminal holding device includes an acceleration sensor capable of detecting acceleration in a direction from the contact surface side toward the opposite side of the contact surface, and a supply unit for supplying a detection signal of the acceleration sensor to the terminal device. .
- the detection signal of the acceleration sensor built in the terminal holding device can be appropriately supplied to the terminal device. Therefore, the terminal device can perform processing such as navigation using the acquired acceleration.
- the terminal holding device includes a connection unit that changes an attachment angle of the holding unit with respect to the acceleration sensor.
- maintenance part with respect to an acceleration sensor can be changed appropriately.
- connection means changes the attachment angle of the holding portion with respect to the acceleration sensor without changing the attachment angle of the acceleration sensor with respect to the attachment portion. Therefore, even if the attachment angle of the holding
- the terminal holding device includes a storage unit that stores the acceleration sensor, and the connection unit can rotate the holding unit with respect to the storage unit.
- the acceleration sensor is provided on the opposite side of the holding unit to the side holding the terminal device.
- the holding unit has a hole for exposing a camera unit provided in the terminal device, and the acceleration sensor detects acceleration in a penetration direction of the hole. It is attached as possible. Through the hole provided in the holding unit, the terminal device can appropriately capture an image with the camera while being held by the terminal holding device. In addition, since the acceleration sensor can detect the acceleration with respect to the penetration direction of the hole, that is, the acceleration in the shooting direction of the camera, the terminal device can acquire the acceleration in the shooting direction of the camera.
- the terminal holding device includes an attaching portion for attaching to the vehicle, a holding portion for holding the terminal device detachably by exposing a display portion of the terminal device, and the holding portion.
- An acceleration sensor capable of detecting an acceleration in a direction from the display unit side of the held terminal device toward the opposite side of the display unit; and supply means for supplying a detection signal of the acceleration sensor to the terminal device; Have. Also with the above terminal holding device, the detection signal of the acceleration sensor built in the terminal holding device can be appropriately supplied to the terminal device.
- FIG. 1 shows a terminal holding device 1 according to a first embodiment of the present invention.
- the terminal holding device 1 functions as a so-called cradle, and a terminal device 2 such as a smartphone is attached.
- FIG. 1 shows the terminal holding device 1 in a state where the terminal device 2 is held.
- FIG. 1A is a front view of the terminal holding device 1
- FIG. 1B is a side view of the terminal holding device 1
- FIG. 1C is a rear view of the terminal holding device 1.
- FIG. 2A is a front view of the terminal holding device 1 in a state where the terminal device 2 is not held.
- FIG. 2B is a perspective view from the back side of the terminal holding device 1 in a state where the terminal device 2 is not held.
- the terminal holding device 1 includes a base 11, a hinge 12, an arm 13, a substrate holder 15, and a terminal holder 16.
- the base 11 functions as a base when the terminal holding device 1 is attached to a moving body such as a vehicle.
- a suction cup or an adhesive tape is provided on the lower surface of the base 11, and the base 11 is fixed to an installation surface 5 such as a dashboard of the vehicle by the adhesive tape.
- the hinge 12 is fixed to the arm 12 and is rotatably attached to the base 11. As the hinge 12 rotates, the arm 12 rotates in the front-rear direction of the terminal device 2, that is, in the directions of arrows 41 and 42 in FIG. That is, the installation angle of the substrate holder 15 and the terminal holder 30 with respect to the installation surface 5 can be adjusted by rotating the arm 12 via the hinge 12 with respect to the base 11 fixed to the installation surface 5 of the vehicle. .
- the substrate holder 15 is a holder for holding a substrate such as a gyro sensor.
- the substrate holder 15 includes a cover 15a, a ball link 15b, a sensor substrate 15c, and a sensor 15d.
- the ball link 15 b is attached to the upper end of the arm 13, and holds the substrate holder 15 at an arbitrary angle with respect to the arm 13.
- the cover 15a is provided at the lower end of the substrate holder 15 and has a role of regulating the rotation of the substrate holder 15 with respect to the arm 13, and details thereof will be described later.
- a sensor substrate 15c is provided inside the substrate holder 15, and a sensor 15d is provided on the sensor substrate 15c.
- a suitable example of the sensor 15d is a gyro sensor or an acceleration sensor.
- the terminal holder 16 is a holder that holds the terminal device 2.
- the terminal holder 16 includes a connector 16a and a wiring 16b.
- the connector 16 a is provided on the front surface of the terminal holder 16, that is, the bottom of the surface on which the terminal device 2 is installed, and is connected to the connector of the terminal device 2 when the terminal device 2 is installed on the terminal holder 16.
- the connector 16a is electrically connected to the sensor substrate 15c by the wiring 16b. Therefore, the detection signal from the sensor 15d is supplied to the terminal device 2 through the sensor substrate 15c, the wiring 16b, and the connector 16a.
- the terminal device 2 includes a display surface 2a having a display unit such as a liquid crystal display panel on the front side of the terminal device 2 main body, and a back surface 2b on the back side of the terminal device 2 main body.
- the terminal device 2 is formed in a rectangular flat plate shape, and the display surface 2a and the back surface 2b are formed substantially in parallel.
- the display surface 2a may be referred to as “front surface 2a”.
- the terminal holder 16 has a contact surface 16c on the front side.
- the contact surface 16 c abuts on the back surface 2 b of the terminal device 2 and supports the back surface 2 b of the terminal device 2.
- the contact surface 16 c of the terminal holder 16 is configured such that the entire surface is in contact with the back surface 2 b of the terminal device 2. Instead, one or several portions of the contact surface 16c may be partially protruded, and only the protruded portion may be in contact with the back surface 2b of the terminal device 2.
- the base 11 corresponds to an example of the “mounting portion” in the present invention
- the terminal holder 16 corresponds to an example of the “holding portion” in the present invention
- the connector 16a corresponds to the “supplying unit” in the present invention
- the substrate holder 15 corresponds to an example of a “storage portion” in the present invention.
- the terminal holder 16 holding the terminal device 2 can be rotated by 90 degrees with respect to the substrate holder 15. That is, when the state of FIG. 1A is set to a rotation angle of 0 degrees, the terminal holder 16 is rotated in four angles of 0 degrees, 90 degrees, 180 degrees, and 270 degrees clockwise or counterclockwise. It is possible to fix. Note that the reason why the rotation angle can be fixed every 90 degrees is that the user normally uses the display unit in a vertically or horizontally arranged state when viewing the terminal device 2. As described above, the terminal device 2 usually has a rectangular flat plate shape, and the vertically arranged is an arrangement in which the longitudinal direction of the display unit is vertically, and the horizontally arranged is The arrangement is such that the longitudinal direction of the display unit is horizontal.
- FIG. 3 shows an example of the state in which the terminal holder 16 is rotated.
- the terminal holding device 1 is viewed from the front side, when the terminal holder 16 is rotated 90 degrees from the state of FIG. 3A in the direction of the arrow, the state shown in FIG.
- the terminal holding device 1 is viewed from the back side, when the terminal holder is rotated 90 degrees from the state of FIG. 3C in the direction of the arrow, the state shown in FIG.
- a rotation shaft (not shown) is provided in the approximate center of the substrate holder 15, and the terminal holder 16 can be rotated relative to the substrate holder 15 by fixing the terminal holder 16 to the rotation shaft. It can be. Further, on the surface where the substrate holder 15 and the terminal holder 16 are in contact with each other, the concave and convex portions or grooves and protrusions that are fitted to each other at every rotation angle of 90 degrees are provided, so that the terminal holder 16 is held at the rotation angle position every 90 degrees. Can be fixed.
- the rotating shaft corresponds to an example of “connecting means” in the present invention. Such a structure is merely an example, and other structures may be adopted as long as the terminal holder 16 can be fixed to the sensor substrate 15 every 90 degrees of rotation.
- the sensor substrate 15 c is fixed to the substrate holder 15 so as to be perpendicular to the display surface 2 a of the terminal device 2.
- the terminal device 2 is normally configured in a rectangular flat plate shape, and the display surface 2a and the back surface 2b are substantially parallel. Further, as described above, the back surface 2b of the terminal device 2 and the contact surface 16c of the terminal holder 16 are substantially parallel. Therefore, the sensor substrate 15 c is normally fixed to the substrate holder 15 so as to be perpendicular to the display surface 2 a and the back surface 2 b of the terminal device 2 and the contact surface 16 c of the terminal holder 16.
- the sensor substrate 15c is fixed in the longitudinal direction or the short direction of the display surface 2a when the terminal holder 16 described above is fixed in a state in which the terminal holder 16 is rotated at any one of the above four angles of 90 degrees. It is fixed to the substrate holder 15 so as to be perpendicular to either.
- the sensor board 15c is horizontal, that is, with respect to the ground, regardless of the state in which the user attaches the terminal holding device 1 to the installation surface 5 of the vehicle. It is fixed in a substantially parallel state. This is because the user usually installs the terminal holding device 1 so that the display surface 2a of the terminal device 2 is substantially perpendicular to the ground. Usually, the user sits on the seat of the vehicle in a posture facing the traveling direction and having the upper body approximately perpendicular to the ground. For this reason, the terminal holding device 1 is installed on the installation surface 5 of the vehicle so that the display surface 2a faces the user substantially, that is, the display surface 2a is perpendicular to the ground.
- the installation surface 5 is an inclined surface
- the user can cause the display surface 2a of the terminal device 2 to be substantially perpendicular to the ground by the rotation angle adjustment function by the hinge 12 and the ball link 15b of the terminal holding device 1.
- the angle should be adjusted. Therefore, no matter what position the terminal holding device 1 is installed, the sensor substrate 15c is always placed horizontally, that is, parallel to the ground. Thereby, the sensor 15d such as a gyro sensor is always installed horizontally, and accurate detection is possible.
- the installation angle of the sensor substrate 15c will be further described with reference to FIG.
- the terminal holder 16 since the terminal holder 16 can be fixed only with respect to the substrate holder 15 every 90 degrees of rotation, when the terminal holding device 1 is installed on the inclined installation surface 5 of the vehicle, it is shown in FIG. Thus, the terminal holder 16 cannot be fixed at a rotation angle such that the display unit is arranged horizontally or vertically. Even if the terminal holder 16 is rotated in units of 90 degrees, as shown in FIGS. 4A and 4B, the display unit of the terminal device 2 is inclined and the sensor substrate 15c is also inclined. . Therefore, the user uses the hinge 12 to adjust the angle so that the display unit of the terminal device 2 is not inclined as shown in FIG.
- the sensor substrate 15c is naturally horizontal.
- the sensor substrate 15c is installed horizontally.
- the user can set the sensor board 15c to be inclined as long as the user installs the terminal device 2 in an easy-to-see state, that is, the display surface is substantially perpendicular to the ground and is not inclined.
- the sensor substrate 15c is held in a horizontal state without being conscious.
- the cover 15a of the substrate holder 15 regulates the rotation of the substrate holder 15 by the ball link 15b will be described.
- the rotation of the substrate holder 15 is restricted by the cover 15a, and the sensor substrate 15c is held in a state close to the horizontal. To ensure that.
- a sensor such as a gyro sensor is preferably used in a horizontal state, and an allowable tilt angle (hereinafter referred to as “allowable tilt angle”) is determined. That is, even if it is not completely horizontal, accurate detection is possible as long as it is within the allowable tilt angle range. Therefore, in the first embodiment, when the terminal holding device 1 is attached to the installation surface 5, the cover 15a regulates the rotation of the substrate holder 15 so that the angle of the sensor substrate 15c does not exceed the allowable inclination angle.
- FIG. 5 shows a state in which the substrate holder 15 and the terminal holder 16 are rotated in the front-rear direction using the ball link 15b.
- the substrate holder 15 and the terminal holder 16 that rotate together are called “holding portions”. Further, it is assumed that the allowable inclination angle of the sensor 15d is “ ⁇ ”.
- FIG. 5A shows a state in which the rotation of the ball link 15b is adjusted so that the terminal device 2 is substantially perpendicular to the ground.
- the sensor substrate 15c is held in a horizontal state.
- the upper end portion of the arm 13 is not in contact with the edge of the lower end of the cover 15a, and the cover 15a does not restrict the rotation of the holding portion.
- FIG. 5B shows a state in which the holding portion is rotated in the direction of the arrow 81 using the ball link 15b.
- the sensor substrate 15c is also inclined with respect to the horizontal direction, but when the inclination angle of the sensor substrate 15c becomes the allowable inclination angle ⁇ , as indicated by the arrow X1.
- the arm 13 hits the edge of the lower end of the cover 15a and restricts the rotation of the holding portion. That is, the holding part cannot rotate in the direction of the arrow 81 any more. As a result, the sensor substrate 15c is prevented from being inclined by the allowable inclination angle ⁇ or more with respect to the horizontal direction.
- FIG. 5C shows a state in which the holding portion is rotated in the direction of the arrow 82, that is, the direction opposite to FIG. 5B, using the ball link 15b. Also in this case, when the inclination angle of the sensor substrate 15c reaches the allowable inclination angle ⁇ , the edge of the lower end of the cover 15a hits the arm 13 as shown by the arrow X2, preventing further rotation. As a result, the sensor substrate 15c is prevented from being inclined by the allowable inclination angle ⁇ or more with respect to the horizontal direction.
- FIG. 6 shows a state in which the holding portion is rotated in the left-right direction using the ball link 15b.
- the sensor substrate 15c is held in a horizontal state.
- the edge of the lower end of the cover 15a is not in contact with the arm 13, and the cover 15a does not restrict the rotation of the holding portion.
- FIG. 6B shows a state in which the holding portion is rotated in the direction of the arrow 83 using the ball link 15b.
- the sensor substrate 15c is also inclined with respect to the horizontal direction.
- the inclination angle of the sensor substrate 15c becomes the allowable inclination angle ⁇ , as shown by the arrow X3.
- the arm 13 hits the edge of the lower end of the cover 15a and restricts the rotation of the holding portion. In other words, the holding part can no longer rotate in the direction of the arrow 83.
- the sensor substrate 15c is prevented from being inclined by the allowable inclination angle ⁇ or more with respect to the horizontal direction.
- FIG. 6C shows a state in which the holding portion is rotated in the direction of the arrow 84, that is, the direction opposite to FIG. 6B, using the ball link 15b. Also in this case, when the inclination angle of the sensor substrate 15c reaches the allowable inclination angle ⁇ , the edge of the lower end of the cover 15a hits the arm 13 as shown by the arrow X4 to prevent further rotation. As a result, the sensor substrate 15c is prevented from being inclined by the allowable inclination angle ⁇ or more with respect to the horizontal direction.
- the rotation of the holding portion using the ball link 15b is restricted by the cover 15a, thereby preventing the sensor substrate 15c from being inclined beyond the allowable inclination angle.
- a structure is adopted in which the cover 15a is tapered and the diameter of the lower end is smaller than the upper end.
- the rotation of the holding portion using the ball link 15b is different from that of the other end. It is good also as regulating by structure. For example, even if the cover 15a is not tapered, it is possible to prevent the rotation of the cover 15a from exceeding the allowable inclination angle by adjusting the diameter of the lower end of the cover 15a and the diameter of the arm 13.
- the sensor substrate 15c is fixed so as to be perpendicular to the display surface 2a of the terminal device 2, so that the user can
- the sensor substrate 15c is held substantially horizontally just by attaching the terminal holding device 1 to the installation surface 5 of the vehicle in an easily viewable state. Therefore, the user can attach the terminal holding device 1 without considering the inclination angle of the sensor substrate 15c.
- the terminal holding device 1 is provided with a structure that restricts the rotation of the holding portion by the ball link 15b so that the inclination angle of the sensor substrate 15c does not exceed the allowable inclination angle, the user has a function of rotating the ball link 15b. Even when the angle of the substrate holder 15 is finely adjusted using the sensor substrate 15c, the sensor substrate 15c does not tilt more than the allowable tilt angle.
- the terminal holder 16 is configured to be rotatable about the substrate holder 15, but the present invention is not limited to this example.
- the terminal holder 16 may be configured not to rotate with respect to the substrate holder 15.
- the terminal holder 16 is configured to be fixed in a state of being rotated by 0 degrees, 90 degrees, 180 degrees, and 270 degrees with respect to the substrate holder 15.
- the present invention is not limited to this example. It is not limited to.
- the terminal holder 16 may be configured to be fixed in a state where the terminal holder 16 is rotated at two angles of 0 degrees and 90 degrees with respect to the substrate holder 15. That is, it is only necessary that the terminal device 2 can be arranged by two methods of portrait or landscape.
- the sensor substrate 15 c is fixed to the substrate holder 15 so as to be perpendicular to the display surface 2 a of the terminal device 2.
- the sensor substrate 15c may be installed to be tilted within the range of the allowable tilt angle of the sensor substrate 15c, even if it is not completely vertical.
- FIG. 7 shows a side view of a terminal holding device according to this modification.
- an arrow 85 indicates a direction perpendicular to the display surface 2 a of the terminal device 2
- the sensor substrate 15 c is installed on the substrate holder 15 in a state where the sensor substrate 15 c is inclined by an allowable inclination angle ⁇ . ing.
- the sensor substrate 15 c is attached to the substrate holder 15 so as to be (90 ⁇ ) degrees with respect to the display surface 2 a of the terminal device 2. Therefore, when the terminal holding device 1 is attached to the vehicle so that the display surface 2a of the terminal device 2 is slightly upward, the sensor substrate 15c is substantially parallel to the ground.
- FIG. 8 shows a terminal holding device 1x according to the second embodiment.
- 8A shows a front view
- FIG. 8B shows a side view
- FIG. 8C shows a rear view.
- the same components as those shown in FIG. 1 are denoted by the same reference numerals as those in FIG.
- a camera 29 is provided on the back surface 2b of the terminal device 2xx. Further, a hole (hole) 17 is formed in the terminal holder 16 of the terminal holding device 1x at a position facing the camera 29 in a state where the terminal device 2x is held by the terminal holding device 1x.
- the hole 17 is configured to have a diameter larger than the diameter of the lens of the camera 29.
- the terminal holder 16 is configured to cover substantially the entire back surface 2b of the terminal device 2x, and the hole 17 is formed at a position facing the camera 29 of the terminal device 2x.
- the terminal holder 16 may be configured to cover only the surface below the position where the camera 29 is provided in the terminal device 2x in a state where the terminal device 2x is held by the terminal holding device 1x. it can.
- the contact surface 16c of the terminal holder 16 extends to a position below the position where the camera 29 of the terminal device 2x is provided (in other words, the camera 29 of the terminal device 2x is provided). The contact surface 16c does not exist above the position). In such another example, it is not necessary to form the hole 17 in the terminal holding device 1x.
- the camera 29 is provided on a substantially center line in the left-right direction of the back surface 2b of the terminal device 2x.
- the camera 29 is not limited to being provided at such a position.
- the camera 29 may be provided at a position somewhat away from the center line in the left-right direction of the back surface 2b.
- the terminal device 2 x is cut into a portion including the position where the camera 29 is provided in the terminal device 2 x while being held by the terminal holding device 1 x. It is good also as forming a notch.
- FIG. 9 schematically shows the configuration of the terminal device 2x.
- the terminal device 2x mainly includes a CPU 21, a ROM 22, a RAM 23, a communication unit 24, a display unit 25, a speaker 26, a microphone 27, an operation unit 28, and a camera 29.
- the terminal device 2x is a portable terminal device having a call function such as a smartphone.
- a CPU (Central Processing Unit) 21 controls the entire terminal device 2x.
- a ROM (Read Only Memory) 22 has a nonvolatile memory (not shown) in which a control program for controlling the terminal device 2x is stored.
- a RAM (Random Access Memory) 23 stores data set by the user via the operation unit 26 so as to be readable, and provides a working area to the CPU 21.
- the communication unit 24 is configured to be able to perform wireless communication with another terminal device 2x via a communication network.
- the display unit 25 is configured by a liquid crystal display, for example, and displays characters, images, and the like to the user.
- the speaker 26 outputs sound to the user.
- the microphone 27 collects sound emitted by the user.
- the operation unit 28 can be configured by an operation button or a touch panel type input device provided on the casing of the terminal device 2x, and various selections and instructions by the user are input.
- the display unit 25 is a touch panel system
- the touch panel provided on the display screen of the display unit 25 also functions as the operation unit 28.
- the camera 29 is constituted by a CCD camera, for example, and is provided on the back surface 2b of the terminal device 2x as shown in FIG. Basically, the direction of the optical axis of the camera 29 (the axis extending in the vertical direction from the center of the lens) coincides with the vertical direction (in other words, the normal direction) of the back surface 2b of the terminal device 2x.
- the camera 29 may be provided not only on the back surface 2b of the terminal device 2x but also on the front surface 2a of the terminal device 2x.
- FIG. 10 shows a view of the terminal device 2x installed in the vehicle interior of the vehicle 3 as viewed from above, and also shows an example of an image taken by the camera 29 of the terminal device 2x.
- the terminal device 2x is simplified and the terminal holding device 1x is not shown.
- the terminal device 2x is installed in the passenger compartment of the vehicle 3 while being held by the terminal holding device 1x.
- FIG. 10 illustrates a case where the terminal device 2x is installed approximately in front of the driver's seat and a case where the terminal device 2x is installed between the driver's seat and the passenger seat (in either case, the terminal device 2x is connected to the dash board). On the board).
- the user installs the terminal device 2x so that the display unit 25 faces the user.
- the terminal device 2x is installed at a position substantially in front of the driver's seat, if the terminal device 2x is installed so that the display unit 25 faces the user, the terminal device 2x tends to face the traveling direction of the vehicle 3. .
- the front surface 2a on which the display unit 25 is provided and the back surface 2b on which the camera 29 is provided are configured substantially in parallel, so that the front direction (vertical direction) of the back surface 2b is There is a tendency to generally coincide with the traveling direction of the vehicle 3.
- the direction along the front surface 2a and the back surface 2b of the terminal device 2x and the traveling direction tend to be substantially perpendicular.
- the terminal device 2x when the terminal device 2x is installed at a position between the driver seat and the passenger seat, if the terminal device 2x is installed so that the display unit 25 faces the user, the terminal device 2x is connected to the vehicle 3. There is a tendency not to face the direction of travel.
- the front surface 2a on which the display unit 25 is provided and the back surface 2b on which the camera 29 is provided are configured substantially in parallel, so that the front direction (vertical direction) of the back surface 2b is There is a tendency not to match the traveling direction of the vehicle 3. In other words, the direction along the front surface 2a and the back surface 2b of the terminal device 2x and the traveling direction tend not to be substantially vertical.
- the terminal device 2x may affect the driver's field of view, and depending on the vehicle type, it may be difficult to install the terminal device 2x in front of the driver's seat.
- the terminal device 2x tends to be installed at a position other than the front of the driver's seat.
- a photographed image 101 indicated by a one-dot chain line shows an example of an image photographed by the camera 29 when the terminal device 2x is installed almost in front of the driver's seat.
- a photographed image 102 indicated by a broken line shows an example of an image photographed by the camera 29 when the terminal device 2x is installed between the driver seat and the passenger seat. 10 that the center position 101a in the left-right direction of the captured image 101 and the center position 102a in the left-right direction of the captured image 102 do not match. This means that the shooting direction of the camera 29 does not match between the case where the terminal device 2x is installed almost in front of the driver's seat and the case where the terminal device 2x is installed between the driver's seat and the passenger seat. ing.
- the “shooting direction” of the camera 29 means a direction in which the camera 29 is facing and substantially coincides with the vertical direction of the back surface 2b of the terminal device 2x. More specifically, the “shooting direction” corresponds to the direction of the optical axis in the lens of the camera 29.
- the front-rear direction (specifically, the forward direction) of the vehicle 3 is used as the “traveling direction” of the vehicle 3.
- the vertical direction of the back surface 2b on which the camera 29 is provided in the terminal device 2x substantially matches the traveling direction of the vehicle 3 as described above. Therefore, the shooting direction of the camera 29 substantially coincides with the traveling direction. Therefore, in this case, the center position 101a of the captured image 101 substantially matches the position corresponding to the traveling direction of the vehicle 3 in the captured image 101.
- the vertical direction of the back surface 2b where the camera 29 is provided in the terminal device 2x is the traveling direction of the vehicle 3 as described above. Since they do not match, the shooting direction of the camera 29 does not match the traveling direction. Therefore, in this case, the center position 102a of the captured image 102 does not coincide with the position corresponding to the traveling direction of the vehicle 3 in the captured image 102.
- AR navigation using a photographed image (corresponding to an image generated based on a photographed image, hereinafter also referred to as “display image”) by the camera 29 of the terminal device 2x
- This navigation is called AR navigation (AR: Augmented Reality) or the like, and displays an image for route guidance such as a direction and a distance to a destination on the display image.
- AR navigation Augmented Reality
- the AR navigation may not be performed properly.
- an image used for route guidance may not be displayed at an appropriate position in the display image, or there may be no place to display in the display image.
- the captured image of the camera 29 is corrected in order to eliminate the problem that occurs when the shooting direction of the camera 29 and the traveling direction of the vehicle 3 do not match.
- the CPU 21 in the terminal device 2x corrects the captured image of the camera 29 based on the deviation of the shooting direction of the camera 29 with respect to the traveling direction of the vehicle 3, and generates a display image for use in AR navigation or the like. To do.
- the CPU 21 obtains a shift in the shooting direction with respect to the traveling direction, and corrects the captured image so that the center position in the left-right direction of the display image matches the position corresponding to the traveling direction based on the shift.
- correctioning a captured image means a process of extracting an image to be displayed from a captured image by the camera 29 based on a shift in the capturing direction with respect to the traveling direction, that is, a captured image. It means processing that takes a part of the image as a display image.
- FIG. 11 shows a view of the terminal device 2x installed in the passenger compartment of the vehicle 3 as viewed from above, and also shows an example of an image captured by the camera 29 of the terminal device 2x. ing. Also in FIG. 11, for convenience of explanation, the terminal device 2 x is illustrated in a simplified manner, and the terminal holding device 1 x is not illustrated.
- FIG. 11 illustrates a case where a captured image 105 as indicated by a broken line is obtained from the camera 29 when the terminal device 2x is installed between the driver's seat and the passenger seat (specifically, a position on the dashboard). ing.
- the front direction (vertical direction) of the back surface 2b on which the camera 29 is provided in the terminal device 2x is the vehicle 3. Does not match the direction of travel. Therefore, the shooting direction of the camera 29 does not match the traveling direction of the vehicle 3. Therefore, the center position 105 a of the captured image 105 does not coincide with the position corresponding to the traveling direction of the vehicle 3 in the captured image 105.
- the CPU 21 performs processing to correct such a shift between the center position 105a in the captured image 105 and the position corresponding to the traveling direction. Specifically, first, the CPU 21 obtains the deviation of the shooting direction of the camera 29 from the traveling direction of the vehicle 3 based on the acceleration of the vehicle 3. Next, the CPU 21 obtains a position 105b obtained by shifting the center position 105a in the captured image 105 by an amount corresponding to the shift (corresponding to the arrow 107). In the second embodiment, the position 105 b thus obtained is handled as a position corresponding to the traveling direction in the captured image 105.
- the CPU 21 extracts an image in which the center position in the left-right direction matches the position 105 b from the photographed image 105 in order to match the center position in the left-right direction of the display image with the position corresponding to the traveling direction.
- the extracted image is used as a display image.
- the CPU 21 generates, as a display image, an image 106 (in other words, an image 106 having a predetermined size in the left-right direction) within the predetermined range with the position 105b as the center position in the captured image 105.
- the CPU 21 cuts and displays images other than the image 106 (that is, images at both ends of the image 106) from the captured image 105.
- the “predetermined range” used when generating the display image is set in advance according to the size and range of the image to be displayed.
- the “predetermined range” is determined by AR navigation settings or the like.
- FIG. 12 shows a view of the terminal device 2x observed from above.
- a drawing in which the shooting direction of the camera 29 does not coincide with the traveling direction of the vehicle 3 is shown.
- the terminal device 2x is simplified and the terminal holding device 1x is not shown.
- the angle of view indicated by the arrow 150 indicates the angle of view used by the camera 29 for shooting. That is, the angle of view 150 indicates the angle of view of the camera 29 itself.
- An alternate long and short dash line 150c indicates the center position of the angle of view 150 used by the camera 29 for shooting, that is, the position corresponding to the shooting direction. It is assumed that the CPU 21 knows the angle of view 150 used for shooting by the camera 29 and the center position 150c in the angle of view 150.
- the CPU 21 corresponds to an angle formed by the shooting direction of the camera 29 with respect to the traveling direction of the vehicle 3 (corresponding to an angle indicated by an arrow 155). Called “Corner”.) The method for obtaining the deviation angle 155 will be described later in detail.
- the CPU 21 obtains a position 151c obtained by shifting the center position 150c in the angle of view 150 used for photographing by the camera 29 by the shift angle 155.
- the CPU 21 treats the obtained position 151 c as a position corresponding to the traveling direction of the vehicle 3.
- the CPU 21 uses the position 151c as the center position of an angle of view (hereinafter, also referred to as “display angle of view”) used when actual display is performed within the angle of view 150.
- the CPU 21 obtains, as a display angle of view, an angle of view (indicated by an arrow 151) having a predetermined width with the obtained position 151c as the center at the angle of view 150 used by the camera 29 for photographing. Thereafter, the CPU 21 generates, as a display image, an image within the range defined by the obtained display angle of view 151 in the image captured by the camera 29. This corresponds to generating, as a display image, an image 106 within a predetermined range with the position 105b as the center position in the captured image 105, as shown in FIG.
- the display angle of view 151 can be obtained without obtaining the position 151c corresponding to the traveling direction.
- a display angle of view an angle of view having a width of a predetermined angle with the center position 150c as a center
- the display angle of view 151 can be obtained by shifting the shift angle 155.
- the display image can be generated by appropriately correcting the photographed image based on the deviation angle of the photographing direction of the camera 29 with respect to the traveling direction of the vehicle 3. Specifically, a display image having a position corresponding to the traveling direction of the vehicle 3 as the center position can be appropriately generated. As a result, even if the terminal device 2x is installed in a state where it does not face the traveling direction of the vehicle 3 (that is, a state where the shooting direction of the camera 29 does not coincide with the traveling direction of the vehicle 3), the generated display image is displayed. It is possible to appropriately perform AR navigation and the like. For example, an image used for route guidance in AR navigation can be displayed at an appropriate position on the display image.
- the angle of view of the camera 29 is determined when the user changes the orientation of the terminal device 2x within the range of the orientation of the terminal device 2x that is assumed to be set by the user to observe the display unit 25. It is desirable to design so that all of the required display angles of view are included within the range of angles of view of the camera 29 itself. That is, even if the user changes the orientation of the terminal device 2x in various ways within the range of the assumed orientation of the terminal device 2x, it has an angle of view that covers all of the display angles of view required as described above. It is desirable to use the camera 29.
- FIG. 13 (a) shows a view of the terminal device 2x held by the terminal holding device 1x as viewed from above.
- the terminal holding device 1x and the terminal device 2x are illustrated in a simplified manner.
- a sensor 15d is provided in the substrate holder 15 of the terminal holding device 1x.
- the sensor 15d is an acceleration sensor (in other words, a G sensor) configured to be able to detect acceleration in a two-dimensional direction.
- acceleration sensor 15d is referred to as “acceleration sensor 15d”.
- the output signal of the acceleration sensor 15d is supplied to the terminal device 2x.
- the CPU 21 in the terminal device 2x acquires the output signal of the acceleration sensor 15d.
- the acceleration sensor 15d detects the acceleration in the X direction and the acceleration in the Y direction as shown in FIG. Since the acceleration sensor 15d is fixed to the terminal holding device 1x and the positional relationship with the camera 29 of the terminal device 2x attached to the terminal holding device 1x is constant, the acceleration sensor 15d detects the acceleration in the X direction and the Y direction. There is a fixed relationship with the shooting direction of the camera 29. In the second embodiment, as shown in FIG. 13A, the X direction and the photographing direction are configured to coincide with each other.
- FIG. 13B shows the terminal device 2x held by the terminal holding device 1x as in FIG. 13A, but here the terminal device 2x faces the traveling direction of the vehicle 3.
- photography direction of the camera 29 does not correspond with the advancing direction of the vehicle 3 is shown.
- the direction of the terminal holding device 1x matches the direction of the terminal device 2x. Therefore, it can be said that the direction of the terminal device 2x (specifically, the shooting direction of the camera 29 in the terminal device 2x) can be appropriately detected by the acceleration sensor 15d in the terminal holding device 1x.
- FIG. 13 (c) shows only the acceleration sensor 15d in FIG. 13 (b).
- the acceleration sensor 15d detects acceleration in a two-dimensional direction with respect to the X direction and the Y direction as shown in FIG.
- the X direction corresponds to the shooting direction of the camera 29. If the shooting direction of the camera 29 is deviated from the traveling direction of the vehicle 3, the shooting of the camera 29 in the traveling direction of the vehicle 3 is determined from the ratio of the acceleration in the X direction and the acceleration in the Y direction detected by the acceleration sensor 15d.
- the shift angle ⁇ in the direction (X direction) can be calculated.
- the shift angle ⁇ can be calculated from the following equation (1).
- Deviation angle ⁇ arctan (acceleration in the Y direction / acceleration in the X direction) Equation (1) Specifically, the deviation angle ⁇ is calculated by the CPU 21 in the terminal device 2x. In this case, the CPU 21 acquires output signals corresponding to the acceleration in the X direction and the acceleration in the Y direction detected by the acceleration sensor 15d, and calculates the shift angle ⁇ based on the output signal.
- the deviation angle is calculated based on the output of the acceleration sensor 15d provided in the substrate holder 15 of the terminal holding device 1x
- the present invention is not limited to this.
- the deviation angle is determined based on the output of a sensor provided in the vehicle 3 or the output of a sensor provided in a navigation device installed in the vehicle 3 separately from the terminal device 2x. It may be calculated.
- FIG. 14 is a flowchart illustrating a captured image correction process according to the second embodiment.
- the processing is realized by the CPU 21 in the terminal device 2x executing a program stored in the ROM 22 or the like.
- step S101 the CPU 21 determines whether or not a predetermined time has elapsed since the captured image correction process was performed last time. This determination is performed in order to repeatedly execute the captured image correction process every predetermined time (in other words, at a predetermined cycle). If the predetermined time has elapsed (step S101; Yes), the process proceeds to step S102. If the predetermined time has not elapsed (step S101; No), the process ends.
- step S102 the CPU 21 determines whether or not the acceleration of the vehicle 3 is equal to or greater than a predetermined value. For example, the CPU 21 determines whether or not the acceleration in the X direction detected by the acceleration sensor 15d is greater than or equal to a predetermined value. Such a determination is performed in order to execute the subsequent processing using a stable output value of the acceleration sensor 15d in order to ensure the accuracy of correcting the captured image.
- the “predetermined value” used for the determination is set to an acceleration value that can ensure the accuracy of correction of the captured image, for example.
- step S102 If the acceleration is greater than or equal to a predetermined value (step S102; Yes), the process proceeds to step S103. If the acceleration is not greater than or equal to the predetermined value (step S102; No), the process returns to step S102.
- step S103 the CPU 21 determines whether or not the vehicle 3 is traveling straight (in other words, traveling straight ahead). Specifically, the CPU 21 determines whether or not the vehicle 3 is traveling in a straight line based on the ratio between the acceleration in the X direction and the acceleration in the Y direction detected by the acceleration sensor 15d. Specifically, the CPU 21 samples a plurality of ratios between the acceleration in the X direction (acceleration greater than or equal to a predetermined value) and the acceleration in the Y direction, and the sampled ratio values are substantially constant. Determines that the vehicle 3 is traveling in a straight line, and determines that the vehicle 3 is not traveling in a straight line when values of a plurality of sampled ratios fluctuate.
- Such a determination is also performed from the viewpoint of ensuring the accuracy of correction of the captured image. Specifically, the determination is performed in order to perform correction of the captured image using the output value of the acceleration sensor 15d when the traveling direction of the vehicle 3 coincides with the longitudinal direction of the vehicle 3.
- step S103 If the vehicle 3 is running straight (step S103; Yes), the process proceeds to step S104. If the vehicle 3 is not running straight (step S103; No), the process returns to step S102.
- step S104 the CPU 21 calculates a deviation angle of the photographing direction of the camera 29 with respect to the traveling direction of the vehicle 3. For example, the CPU 21 calculates the deviation angle based on the ratio of the acceleration in the X direction and the acceleration in the Y direction detected by the acceleration sensor 15d from the above equation (1). Then, the process proceeds to step S105.
- step S105 the CPU 21 corrects the image captured by the camera 29 based on the deviation angle calculated in step S104 and generates a display image. Specifically, the CPU 21 obtains a position obtained by shifting the center position of the angle of view used for shooting by the camera 29 by the deviation angle, and displays the angle of view having a predetermined angle around the obtained position as a display angle of view. Asking. Instead of this, an angle of view obtained by shifting the display angle of view used for generating a display image from a captured image in normal use by the deviation angle may be obtained as the display angle of view. Thereafter, the CPU 21 generates, as a display image, an image within a range defined by the obtained display angle of view in the captured image. The CPU 21 displays the display image thus generated on the display unit 25. Then, the process proceeds to step S106.
- step S106 the CPU 21 causes the ROM 22 or the like to store the deviation angle and / or display field angle data used to generate the display image in step S105 as a correction amount. Then, the process ends. Note that the CPU 21 generates a display image by correcting the captured image using the correction amount stored in step S106 until the above-described predetermined time has elapsed (in the case of “Step S101; No”). . Further, the CPU 21 holds the correction amount even after the engine in the vehicle 3 is turned off, and holds the correction amount until the acceleration of a predetermined value or more occurs after the engine is started. Is used.
- the display image can be generated by appropriately correcting the photographed image based on the deviation angle of the photographing direction of the camera 29 with respect to the traveling direction of the vehicle 3. Specifically, a display image having a position corresponding to the traveling direction of the vehicle 3 as the center position can be appropriately generated. Thereby, even if the terminal device 2x is installed in a state in which the vehicle 3 does not face the traveling direction, AR navigation or the like can be appropriately performed using the generated display image.
- the example in which it is determined whether or not the vehicle 3 is traveling straight is shown based on the ratio between the acceleration in the X direction and the acceleration in the Y direction detected by the acceleration sensor 15d (step S103). ),
- the determination is not limited to the ratio between the acceleration in the X direction and the acceleration in the Y direction.
- it can be determined whether or not the vehicle 3 is traveling in a straight line based on navigation information used by AR navigation or the like.
- the CPU 21 determines from the navigation information such as route information and map information whether the road on which the vehicle 3 is currently traveling is a straight line or a curve, and the currently traveling road is a straight line.
- step S103 it can be determined that the vehicle 3 is traveling in a straight line.
- steps S101, S102, and S103 are performed. Instead, one or more of the determinations in steps S101, S102, and S103 are performed. It is also good to do. In other words, any one or two of steps S101, S102, and S103 may be determined, and the captured image may be corrected when a condition for the determination is satisfied.
- FIG. 15 is a flowchart illustrating a captured image correction process according to a modification.
- the processing is realized by the CPU 21 in the terminal device 2x executing a program stored in the ROM 22 or the like.
- step S201 is performed instead of the process of step S101 illustrated in FIG.
- the processing in steps S202 to S206 is the same as the processing in steps S102 to S106 shown in FIG. Here, only the process of step S201 will be described.
- step S201 the CPU 21 determines whether or not the installation state of the terminal device 2x has been changed.
- the CPU 21 determines whether the orientation of the terminal device 2x is changed by the user, the terminal device 2x is removed from the terminal holding device 1x, or the terminal device 2x is attached to the terminal holding device 1x. This determination is made because when the installation state of the terminal device 2x is changed, the deviation angle of the shooting direction of the camera 29 with respect to the traveling direction of the vehicle 3 also tends to change. This is to execute the correction. That is, when the installation state of the terminal device 2x is changed, the captured image should not be corrected with the correction amount obtained last time, but the captured image should be corrected with a new correction amount.
- the CPU 21 determines whether or not the installation state of the terminal device 2x has been changed by a method as shown in the following first to fourth examples.
- an acceleration sensor configured to detect vertical acceleration is provided in the terminal holding device 1x, and the CPU 21 determines whether the installation state of the terminal device 2x has been changed based on the output of the acceleration sensor. Determine whether or not. Specifically, the CPU 21 determines that the installation state of the terminal device 2x has been changed when vertical acceleration is detected by the acceleration sensor.
- the method according to the first example can be realized by providing, in the terminal holding device 1x, an acceleration sensor configured to be able to detect acceleration in a three-dimensional direction, instead of the above-described acceleration sensor 15d.
- the CPU 21 determines that the installation state of the terminal device 2x has been changed when the acceleration sensor 15d detects an acceleration that cannot be generated by a normal steering wheel operation. Specifically, the CPU 21 samples a plurality of ratios of the acceleration in the X direction and the acceleration in the Y direction, and the installation state of the terminal device 2x changes when the values of the plurality of sampled ratios vary greatly. It is determined that For example, the CPU 21 installs the terminal device 2x when the plurality of sampled ratio values are larger than the ratio value between the acceleration in the X direction and the acceleration in the Y direction that may occur when the vehicle 3 curves. It is determined that the state has changed.
- the CPU 21 determines whether or not the installation state of the terminal device 2x has been changed based on navigation information used by the AR navigation or the like and the output of the acceleration sensor 15d. Specifically, the CPU 21 determines from the navigation information that the acceleration sensor 15d causes an acceleration that cannot be generated during the straight traveling when the road on which the vehicle 3 is currently traveling is determined to be a straight road. When detected, it determines with the installation state of the terminal device 2x having been changed. Specifically, during straight running, the value of the ratio between the acceleration in the X direction and the acceleration in the Y direction should be substantially constant. However, if the value of the ratio fluctuates, the CPU 21 It is determined that the installation state has been changed.
- the CPU 21 does not determine whether or not the installation state of the terminal device 2x has been changed. In this case, since the output value of the acceleration sensor 15d tends to be unstable, the determination about the change of the installation state is not performed from the viewpoint of preventing erroneous determination.
- the CPU 21 determines that the installation state of the terminal device 2x has been changed when the user operates the operation unit 28 of the terminal device 2x. That is, when there is any input from the operation unit 28, the CPU 21 determines that the installation state of the terminal device 2x has been changed. For example, the CPU 21 determines that the installation state of the terminal device 2x has been changed when there is an operation to turn off the AR navigation or an operation to turn off the power of the terminal device 2x.
- step S201 When it is determined by the methods according to the first to fourth examples that the installation state of the terminal device 2x has been changed (step S201; Yes), the process proceeds to step S202, where the installation state of the terminal device 2x is If it is not determined that the change has been made (step S201; No), the process ends. Note that the determination is not limited to using only one of the first to fourth examples, and any two or more methods of the first to fourth examples are combined. The determination may be made.
- the captured image correction process is not repeatedly executed at a predetermined cycle, so that the processing load can be reduced.
- the captured image correction process is repeatedly executed at a predetermined period, the captured image can be corrected at any time without considering the change in the installation state of the terminal device 2x.
- steps S201, S202, and S203 are performed. Instead, one or more determinations in steps S201, S202, and S203 are performed. It is also good to do. That is, any one or two of steps S201, S202, and S203 may be determined, and the captured image may be corrected when a condition for the determination is satisfied.
- the embodiments are not limited to the first embodiment and the second embodiment described above, and may be appropriately selected within the scope of the invention which can be read from the claims and the entire specification. It can be changed.
- the present invention can be used for a mobile phone having a call function and a navigation device for route guidance.
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Abstract
Description
図1は、本発明の第1実施例に係る端末保持装置1を示す。端末保持装置1は、いわゆるクレードルとして機能し、スマートフォンなどの端末装置2が取り付けられる。
上記の第1実施例では、端末ホルダ16が基板ホルダ15を軸として回転できるように構成されているが、本発明はこの例には限定されない。例えば、縦長又は横長のいずれか一方のみで配置されるような端末装置の場合には、端末ホルダ16が基板ホルダ15に対して回転できないように構成してもよい。
次に、第2実施例について説明する。
図8は、第2実施例に係る端末保持装置1xを示す。図8(a)は正面図を示しており、図8(b)は側面図を示しており、図8(c)は背面図を示している。なお、図1で示した構成要素と同様の構成要素については、図1と同一の符号を付し、その説明を省略する。
次に、第2実施例においてCPU21が行う、カメラ29による撮影画像の補正方法について説明する。
次に、図13を参照して、車両3の進行方向に対するカメラ29の撮影方向のずれ角を算出する方法の具体例について説明する。
ずれ角θ=arctan(Y方向の加速度/X方向の加速度) 式(1)
具体的には、ずれ角θは、端末装置2x内のCPU21によって算出される。この場合、CPU21は、加速度センサ15dによって検出されたX方向の加速度及びY方向の加速度に対応する出力信号を取得し、当該出力信号に基づいてずれ角θを算出する。
次に、図14を参照して、第2実施例に係る撮影画像補正処理について説明する。図14は、第2実施例に係る撮影画像補正処理を示すフローチャートである。当該処理は、端末装置2x内のCPU21がROM22などに記憶されたプログラムを実行することにより実現される。
上記では、所定の周期で撮影画像補正処理を繰り返し実行する例を示した。変形例では、所定の周期で撮影画像補正処理を繰り返し実行する代わりに、端末装置2xの設置状態が変更された場合にのみ、撮影画像補正処理を実行する。
2 端末装置
11 ベース
12 ヒンジ
13 アーム
15 基板ホルダ
15a カバー
15b ボールリンク
15c センサ基板
15d センサ(加速度センサ)
16 端末ホルダ
17 孔部
21 CPU
25 表示部
29 カメラ
Claims (7)
- 車両に取り付けるための取付部と、
端末装置を前記端末装置の表示部を露出させて脱着可能に保持するための、前記端末装置との接触面を有する保持部と、
前記接触面側から当該接触面の反対側へ向かう方向への加速度を検出可能な加速度センサと、
前記加速度センサの検出信号を、前記端末装置に供給するための供給手段と、
を有することを特徴とする端末保持装置。 - 前記加速度センサに対する前記保持部の取付角度を変化させる接続手段を有することを特徴とする、請求項1に記載の端末保持装置。
- 前記接続手段は、前記取付部に対する前記加速度センサの取付角度を変化させることなく、前記加速度センサに対する前記保持部の取付角度を変化させることを特徴とする、請求項2に記載の端末保持装置。
- 前記加速度センサを格納する格納部を有し、
前記接続手段は、前記保持部を前記格納部に対して回転させることを特徴とする、請求項3に記載の端末保持装置。 - 前記加速度センサは、前記保持部の前記端末装置を保持する側の反対側に設けられていることを特徴とする、請求項4に記載の端末保持装置。
- 前記保持部は、前記端末装置に備えられたカメラ部を露出させるための孔を有し、
前記加速度センサは、前記孔の貫通方向に対する加速度を検出可能に取り付けられていることを特徴とする、請求項5に記載の端末保持装置。 - 車両に取り付けるための取付部と、
端末装置を前記端末装置の表示部を露出させて脱着可能に保持するための保持部と、
前記保持部に保持された前記端末装置の前記表示部側から表示部の反対側へ向かう方向への加速度を検出可能な加速度センサと、
前記加速度センサの検出信号を、前記端末装置に供給するための供給手段と、
を有することを特徴とする端末保持装置。
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JP2012509798A JP5204926B2 (ja) | 2010-09-16 | 2011-07-26 | 端末保持装置 |
US13/822,161 US9140719B2 (en) | 2010-09-16 | 2011-07-26 | Terminal holding device |
US14/828,813 US9714838B2 (en) | 2010-09-16 | 2015-08-18 | Navigation system, terminal device, and computer program |
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JPPCT/JP2010/068712 | 2010-10-22 | ||
PCT/JP2010/068712 WO2012053102A1 (ja) | 2010-10-22 | 2010-10-22 | 端末装置、端末装置によって実行される画像処理方法及び画像処理プログラム |
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US14/828,813 Division US9714838B2 (en) | 2010-09-16 | 2015-08-18 | Navigation system, terminal device, and computer program |
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US20130174660A1 (en) | 2013-07-11 |
US20150369622A1 (en) | 2015-12-24 |
US9140719B2 (en) | 2015-09-22 |
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