JP4375157B2 - Imaging device - Google Patents

Description

  The present invention relates to an image device used for a monitoring sensor or a monitor camera.

  Conventional camera devices used for crime prevention, etc. include a base (pedestal part) attached to a high-rise construction such as a ceiling, and a main body (camera holder) that holds the imaging camera part and is detachably attached to the base. There is a camera device that images a predetermined area by an imaging camera unit through a dome-shaped translucent cover attached to the lower part of the main body (for example, Patent Document 1).

In order to ensure a certain detection (monitoring) area, this type of camera device uses a cam mechanism that interlocks with the operation unit, like the camera device described in Patent Document 1, to capture the image from the outside (the depression angle). Was supposed to be adjusted.
JP 2001-42393 A (paragraph numbers 0023 to 0026)

  In the configuration using the cam mechanism interlocked with the operation unit as in the camera device disclosed in Patent Document 1 described above, the configuration becomes complicated, and the cost and size increase cannot be avoided.

  The present invention has been made in view of the above points, and an object of the present invention is to provide an image device that can easily and reliably adjust the shooting direction of the imaging camera unit without providing a complicated mechanism unit. There is.

  In order to achieve the above-mentioned object, in the invention of claim 1, a concealing body that is attached to one side of a construction such as a ceiling, and a translucent material that is detachably attached to an opening on the other side of the concealing body A main body comprising a cover, a fixing portion disposed in the concealing body, and an image capturing direction of the image capturing camera unit while holding the image capturing camera unit so that the lens unit faces the translucent cover side An image display device including a movable portion coupled to the fixed portion so as to be displaceable, and the movable portion is provided with an angle display unit for adjusting an angle in an imaging direction of the imaging camera unit, and A reference portion serving as a reference for aligning the angle display portion with the fixed portion is provided, and a position where the angle display portion and the reference portion are provided is a position facing the translucent cover side.

  According to the first aspect, it is possible to easily adjust the imaging direction of the imaging camera unit by simply matching the angle display unit provided in the movable unit with the reference unit provided in the fixed unit, and a complicated mechanism unit is required. Therefore, the structure is simple and the size can be reduced, and there is an important effect especially when the image apparatus is used as a sensor that requires an accurate angle adjustment.

  According to a second aspect of the present invention, in the first aspect of the present invention, the reference portion includes an edge of a protective cover that is located on the back surface of the movable portion and forms a part of the fixed portion.

  According to the invention of claim 2, since the protective cover for protecting the back surface portion of the movable portion can be used as the reference portion, there is no need to provide a dedicated reference portion.

  According to a third aspect of the present invention, in the first or second aspect of the present invention, the movable portion can be manually displaced and is connected to the fixed portion so as to maintain a displaced position, and a grip portion for manual operation is provided. It is provided.

  According to the invention of claim 3, since the angle can be adjusted simply by gripping the gripping part of the movable part by hand and moving the movable part, and the displacement position can be maintained, the adjustment position such as vibration may change. It is possible to prevent and make a reliable adjustment, and just remove the translucent cover for manual operation.

  According to a fourth aspect of the present invention, in the third aspect of the present invention, the grip portion is constituted by the left and right side wall portions of the movable portion that faces the lens portion of the imaging camera portion, and is formed on the outer surface of the both side wall portions. An anti-slip knurled portion is formed.

  According to the invention of claim 4, when the movable part is operated by hand, the grip part is easily held and the operability is high.

  According to a fifth aspect of the invention, in the invention according to any one of the first to fourth aspects, the angle display unit corresponds to a depression angle of the imaging camera unit and is a scale indicating the height from the floor surface to the ceiling of the installation site. It is characterized by comprising.

  According to the invention of claim 5, it is possible to easily adjust the depression angle of the imaging camera unit suitable for the ceiling height of the installation place.

  In the present invention, it is possible to easily adjust the imaging direction of the imaging camera unit simply by matching the angle display unit provided in the movable unit with the reference unit provided in the fixed unit, and further, no complicated mechanism unit is required. The structure is simple and the size can be reduced.

  Hereinafter, the present invention will be described with reference to an embodiment shown in FIGS.

  As shown in FIGS. 1 and 2, the image apparatus according to the present embodiment includes a main body 2 that is attached to the ceiling via an attachment base 1 that is attached to the ceiling in advance.

  The main body 2 includes a concealing body 28 made of a cylindrical non-translucent synthetic resin molded product whose outer shape is a truncated cone and has both ends penetrated, and a synthetic resin molded product attached to the upper opening of the body 28. A ceiling cover 29 (see FIGS. 4 and 5), a cover (hereinafter referred to as a permeable cover) 3 made of a synthetic resin molded article that transmits a dome-shaped near-infrared light attached to the lower opening, and a body 28 is composed of a camera block A or the like incorporated in the camera 28.

  As shown in FIG. 3, the body 28 has an inward flange 28a integrally projecting on the inner edge of the lower end opening, and the upper end edge of the cover 3 is formed in three arc-shaped holes 28b provided at equal intervals in the circumferential direction on the flange 28a. By inserting three inverted L-shaped locking projections 30 protruding upward at equal intervals from below and rotating the translucent cover 3 in a predetermined direction, the flange 28a is fixed to the locking projection 30. The translucent cover 3 is detachably fixed by press-fitting between the horizontal piece 30a and the upper end edge of the translucent cover 3.

  Further, the support pillars 31 for fixing the ceiling cover that are formed in the vertical direction along the inner peripheral wall of the body 28 are formed at predetermined intervals in the circumferential direction, and ribs (not shown) for mounting the lower peripheral portion of the ceiling cover 29 are provided. It is formed along the inner peripheral wall.

  The ceiling cover 29 is fitted into the body 2 from the upper surface opening of the body 2, and the lower surface portion is placed on the upper end surface of the support column 31 and the upper end surface of the rib (not shown), and in this state, the ceiling cover 29 corresponds to the position of the support column 31. A tapping screw (not shown) is screwed and fastened into an attachment hole (not shown) opened on the upper end surface of the support column 31 through an insertion hole (not shown) to be fixed to the upper surface opening of the body 2. Therefore, the upper surface portion includes a locking claw 6 for engaging with an engaged portion (not shown) formed on the lower surface portion of the mounting base 1 and detachably attaching to the mounting base 1. An engaging portion is provided.

  Further, on the upper surface of the ceiling cover 29, a connector (not shown) that is detachably coupled to the connector 27 disposed on the lower surface of the mounting base 1 outside the engaging portion, and various settings are provided. The operation part of the dip switch part (not shown) is exposed.

  On the other hand, on the lower surface of the ceiling cover 29, a board (not shown) on which the above-described connectors and setting dip switch parts are mounted, and a board (not shown) on which electronic components of a signal processing circuit such as image processing are mounted. An arrangement portion is provided, and a support leg 57 for pivotally supporting a camera block A, which will be described later, and a rear portion of the camera block A (the back side of the movable cover 46, which will be described later) are covered. The protective cover 45 that protects the camera block A is provided, and together with the protective cover 45, the fixing portion of the camera block A is configured.

  The camera block A integrally holds three mounting boards in which a near-infrared light emitting diode group LED is mounted on a movable cover 46 made of a synthetic resin molded product and a board on which the imaging camera unit 101 is mounted. It is made to block.

  The movable cover 46 is formed of a shallow synthetic resin molded box having a rear opening, and bulges the central portion forward, and retracts the front portions on both sides of the central bulged portion 46a backward from the central position. The shape is inclined. An opening window 46b for allowing the light emitting diode group LED to face from the inside is opened on the upper side surface portion of the central bulging portion 46a, and the imaging camera unit 101 is disposed on the lower side surface portion slightly inclined downward with respect to the opening window 46b. A window hole 46c is opened to allow the lens portion 51 to face from the inside, and opening windows 46b 'and 46b' are opened to face the light emitting diode group LEDs arranged on the left and right from the inside on the front portions on both sides of the central bulge portion 46a. is doing.

  By the way, the movable cover 46 is formed with a peripheral portion surrounding the surface opening the window hole 46c facing the lens unit 51 higher than the surface opening the window hole 46c, and near-infrared light from the surrounding light emitting diodes LED. The partition wall 52 prevents the lens unit 51 from being directly irradiated.

  Further, non-slip knurled portions 55 are formed on both side surfaces of the central bulged portion 46a including the partition wall 52 located on both sides of the window hole 46c facing the lens portion 51 of the imaging camera unit 101, and this knurled. A gripping part that is gripped by a hand when the camera block A, which will be described later, is rotated by the forming part of the part 55 is configured.

  Thus, the camera block A configured as described above is attached to the ceiling cover 29 as follows. That is, the movable cover 46 is fitted between the support legs 57 and 57 integrally projecting downward from both sides of the center of the lower surface of the ceiling cover 29, and the shaft bodies 56 and 56 projecting on both sides of the movable cover 46 are supported by the support legs. It is attached to the ceiling cover 29 by being rotatably inserted into the shaft holes 58 and 58 provided in 57 from the inside.

  Here, the shaft body 56 is provided with a hole in the axial direction and is formed with a split groove 56b in the diametrical direction on an annular peripheral wall surrounding the hole 56a, and is inserted into the shaft hole 58 from the tip of the hole 56a. As shown in FIG. 6, the screw 71 is screwed in to expand the outer surface of the peripheral wall to press the inner peripheral surface of the shaft hole 58, and the rotational position (adjustment position) of the movable cover 46 is adjusted by the frictional force obtained by the press contact. It is fixed to prevent inadvertent displacement of the position due to vibration or the like.

  Further, the lower end surface of the support leg 57 is provided with a notch 57a whose bottom surface is an arcuate surface concentric with the center of rotation, and on both sides of the movable cover 46 corresponding to the notch 57a, the movable cover 46 is rotated. Then, the projection 59 is provided so as to move within the cutout 57a and hit the both ends of the cutout 57a to restrict the rotation range of the movable cover 46.

  The protective cover 45 is provided with a recess 45a having an opening at the front and upper surface on the front side, and a substantially arc-shaped flange 45b integrally provided on the outer side of the upper end of the back so as to extend between both sides. A tapping screw (threaded from the upper surface side of the ceiling cover 29 with the upper surface in contact with the rib provided on the lower surface portion of the ceiling cover 29 on the rear side of the position of the support leg 57 and the lower end of the protrusion 29a. The rear portion of the movable cover 46 is rotatably accommodated in the front recess 45a.

  Here, on the lower surface of one side of the movable cover 46, the opening edge of the front end of the protective cover 45 is set as a reference line X as shown in FIG. 1B, and this reference line X is overlapped. A scale 67, which is a rotation angle, that is, a scale 68 that is an angle display unit indicating the depression angle of the imaging camera unit 101, is printed in association with a plurality of rotation angles. Of course, a nameplate may be used instead of the sheet 67, and the scale 68 may be directly stamped on the surface of the movable cover 4. Here, the scale 68 has a notation in which the rotation angle is read in accordance with the height dimension from the floor surface to the ceiling mounting surface where the detection (imaging) area as the image device is appropriate.

On the front side peripheral portion of the lower surface portion of the ceiling cover 29, the heat rays incident through the heat ray transmitting cover 64 fitted in the opening 28 c of the body 28 are reflected and condensed on a pyroelectric element (not shown). A human body detection block B made up of a reflecting mirror 65 and a substrate 66 on which a pyroelectric element is mounted is disposed. This human body detection block B is used in combination with the image sensor function of the image apparatus.
Further, a microphone block c (not shown) in which a microphone 69 for collecting the sound of the detection area is mounted on the substrate 70 is disposed on one side peripheral portion of the lower surface portion of the ceiling cover 29.

  As described above, the ceiling cover 29 in which the camera block A, the human body detection block B, the microphone block C, and the protective cover 45 are assembled on the lower surface is attached to the body 28 so as to close the upper surface opening of the body 28. The main body 2 is configured by attaching the translucent cover 3 to the lower surface opening.

  When mounting on a predetermined ceiling using the main body 2 and the mounting base 1 described above, the mounting base 1 is first fixed to a box on the back of the ceiling or directly to the ceiling with mounting screws. This is performed by engaging the engaging portion of the main body 2 with the engaged portion on the lower surface side of the fixed mounting base 1.

  By the way, in order to set the optimal imaging area by adjusting the depression angle of the imaging camera unit 101 according to the height to the ceiling surface of the installation location, in this embodiment, the translucent cover 3 is shown in FIG. ), And the depression angle can be adjusted by rotating the camera block A while holding the gripping portion of the movable cover 46 by hand. In this adjustment, as shown in FIG. As shown, the scale 68 printed on the seal 67 attached to the lower surface side of the movable cover 3 is aligned with the reference line X by the opening edge of the front end of the protective cover 45, so that the height of the ceiling of the installation place is set on the tube body. A suitable positive depression angle can be set, which is very effective when used as a sensor device.

(A) is the side view of the state which removed the translucent cover of one Embodiment, (b) is the principal part enlarged side view of one Embodiment. It is a disassembled perspective view of one Embodiment. It is a disassembled perspective view of the main body except the translucent cover of one Embodiment. It is a disassembled perspective view of the camera block of one Embodiment. It is a disassembled perspective view of the main body except the permeable cover of one Embodiment. It is a side view of the camera block of one embodiment. , It is the perspective view which saw through the body of one embodiment.

Explanation of symbols

3 Translucent Cover 45 Protective Cover 46 Movable Cover 67 Seal 68 Scale A Camera Block X Reference Line

Claims (5)

A main body composed of a concealing body whose one side is attached to a construction such as a ceiling, and a translucent cover that is detachably attached to the other side opening of the concealing body;
A fixing portion disposed in the concealing body;
An image apparatus comprising: a movable unit coupled to the fixed unit so that the imaging camera unit is held so that the lens unit faces the translucent cover side and the imaging direction of the imaging camera unit can be displaced ,
The movable unit is provided with an angle display unit for adjusting the angle of the imaging direction of the imaging camera unit, and a reference unit serving as a reference for aligning the angle display unit with the fixed unit, and the angle display unit and the reference An image device characterized in that the position where the part is provided is a position facing the translucent cover side. The image device according to claim 1, wherein the reference portion includes an edge of a protective cover that is located on a back surface of the movable portion and forms a part of the fixed portion. 3. The image according to claim 1, wherein the movable part is manually displaceable and is connected to the fixed part so as to maintain a displaced position, and is provided with a grip part for manual operation. apparatus. The grip part is configured by left and right side walls of a movable part that faces the lens part of the imaging camera unit, and a non-slip knurled part is formed on the outer surface of the both side walls. Item 4. The image device according to Item 3. 5. The image device according to claim 1, wherein the angle display unit includes a scale corresponding to a depression angle of the imaging camera unit and indicating a height from a floor surface to a ceiling at an installation site.

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