JP2008123356A - Monitoring camera device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a monitoring camera device capable of photographing/specifying a person obstructing the monitoring camera device. <P>SOLUTION: This monitoring camera device is provided with a shock detection part 85 detecting a shock given to the monitoring camera device 100, a control part 90 outputting at least one control signal for actuating a predetermined control target if the detected shock exceeds a predetermined threshold value, a lens device 30 having a zoom movement mechanism 25 for moving a group of zoom lenses 20, and a zoom drive part 45 moving the group of zoom lenses on an optical axis via the zoom movement mechanism. In this case, the control signal includes a control signal for controlling the zoom drive part so that the group of zoom lenses are moved to a wide end side on the optical axis P. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a surveillance camera device.

  In recent years, surveillance camera devices are frequently used in financial and retail stores and public facilities. This type of surveillance camera device can be mounted on a ceiling, wall surface, etc. in a state where a lens device is set so as to satisfy photographing conditions such as a predetermined focus (focus), focal length (zoom), tilt angle and pan angle. Installed. Then, the surveillance camera device records a captured image while changing a predetermined shooting condition (for example, a pan angle or the like) under a predetermined shooting condition or within a preset range. In addition, surveillance camera devices are often covered with a shielding member such as a cover or a case, for example, in order to prevent sabotage and suppress intimidation.

  Interfering actions with respect to the monitoring camera apparatus are diverse, such as an action of damaging the lens apparatus and the camera body after removing the shielding member, and an action of damaging the lens apparatus and the camera body together with the shielding member. However, even in the case of this kind of obstruction, the surveillance camera device only records a photographed image under preset photographing conditions without detecting an abnormality. That is, since the surveillance camera device does not take any measures against the disturbing action, there are many cases where the disturbing person cannot be photographed and specified.

  The following patent document, as an abnormality detection means by a monitoring camera device, detects an abnormality within a monitoring range by image recognition processing, and zooms up the range in which the abnormality is detected, thereby clearly photographing and specifying the target of the abnormality A system is disclosed.

JP-A-9-2127770

  However, the disclosed system detects an abnormality within the monitoring range, and does not detect an abnormality such as a disturbing action on the system. Therefore, in this system, it is not possible to take a measure against the obstructing action on the surveillance camera device and photograph / specify the obstructing person.

  The present invention has been made in view of the above problems, and an object of the present invention is to provide a new and improved surveillance camera device capable of photographing and specifying a person who interferes with the surveillance camera device. .

  In order to solve the above-described problem, according to an aspect of the present invention, an impact detection unit that detects an impact applied to the surveillance camera device, and a predetermined control when the detected impact exceeds a predetermined threshold value. A control unit that outputs at least one control signal for actuating the object, a lens device that has a zoom movement mechanism for moving the zoom lens group, and moves the zoom lens group on the optical axis via the zoom movement mechanism There is provided a surveillance camera device including a zoom drive unit. In this case, the control signal includes a control signal for controlling the zoom driving unit so as to move the zoom lens group to the wide end side on the optical axis.

  According to this configuration, the impact applied to the surveillance camera device by the disturbing person is detected by the impact detection unit. When the detected impact exceeds a predetermined threshold value, at least one control signal for operating a predetermined control target is output by the control unit. That is, in this configuration, the zoom drive unit is a control target. The zoom drive unit is controlled to move the zoom lens group to the wide end side on the optical axis via a control signal. As a result, the focal length increases and the angle of view expands, so that a disturbing person who cannot be captured within the shooting range under the preset shooting conditions (focal length) is shot and specified.

  The surveillance camera device further includes a lens device further having a focus movement mechanism for moving the focus lens group, and a focus driving unit that moves the focus lens group on the optical axis via the focus movement mechanism, The control signal may further include a control signal for controlling the focus driving unit so as to move the focus lens group toward the closest end on the optical axis. That is, in this configuration, the focus drive unit is further controlled. The focus drive unit is controlled to move the focus lens group to the closest end side on the optical axis via a control signal. As a result, the focal point is adjusted to the subject located in the vicinity of the surveillance camera device, so that the disturbing person can be clearly photographed and specified.

  The surveillance camera device further includes a tilt holding mechanism that can hold the tilt angle of the lens device at a predetermined angle, and the tilt holding mechanism has an impact that is detected by the impact detection unit as an impact that exceeds a predetermined threshold. When added to the monitoring camera device, the holding state of the lens device may be released. According to this configuration, the tilt holding mechanism holds the tilt angle of the lens device at a predetermined angle during normal times. On the other hand, when an impact that is detected by the impact detection unit as an impact exceeding a predetermined threshold is applied to the monitoring camera device, the tilt holding mechanism releases the holding state of the lens device. As a result, the holding state of the lens device is released and the optical axis of the lens device is changed downward, so that when the surveillance camera device is installed at a high place, the disturbing action located below the surveillance camera device Person is photographed and identified.

  The surveillance camera device further includes a tilt rotation mechanism for tilting and rotating the lens device, and a tilt drive unit for tilting the lens device via the tilt rotation mechanism, and a control signal is transmitted to the lens device according to a predetermined value. A control signal for controlling the tilt driving unit so as to perform the tilting operation may be further included. That is, in this configuration, the tilt drive unit is further controlled. The tilt drive unit is controlled to cause the lens device to perform a predetermined tilt operation via the control signal. As a result, the optical axis of the lens device is controlled to a predetermined tilt angle, so that an interfering person who cannot be captured within the shooting range under the preset shooting conditions (tilt angle) is shot and specified.

  The surveillance camera device further includes a pan rotation mechanism for panning the lens device, and a pan drive unit for panning the lens device via the pan rotation mechanism, and a control signal is transmitted to the lens device according to a predetermined value. A control signal for controlling the pan driving unit so as to perform the pan operation may be further included. That is, in this configuration, the pan driving unit is further controlled, and the pan driving unit is controlled to cause the lens device to perform a predetermined pan operation via the control signal. As a result, the optical axis of the lens device is controlled to a predetermined pan angle, so that an interfering person who cannot be captured within the photographing range is photographed and specified under a preset photographing condition (pan angle).

  The surveillance camera device further includes an image quality adjustment unit for adjusting the image quality of the captured image, and the control signal includes a control signal for controlling the image quality adjustment unit so as to adjust the image quality of the captured image to a high image quality. Further, it may be included. That is, in this configuration, the image quality adjustment unit is further controlled. The image quality adjustment unit is controlled to adjust the image quality of the captured image to a high image quality via the control signal. As a result, the image quality of the photographed image is improved, so that the disturber is clearly photographed and specified.

  The control unit may be connected to the lighting device, and the control signal may further include a control signal for controlling power supply to the lighting device. That is, in this configuration, the monitoring camera device itself or a lighting device installed in the vicinity thereof is a control target. The illumination device is controlled in power supply via a control signal. Thereby, since the illumination light is applied to the subject, the disturber is clearly photographed and specified.

  Further, the control unit has a connection with the warning device and / or the notification device, and the control signal further includes a control signal for controlling the warning operation and / or the notification operation via the warning device and / or the notification device. Also good. That is, in this configuration, the warning and / or notification device is further controlled. The warning and / or notification device is controlled for warning and / or notification operation via a control signal. Thereby, since a predetermined warning and / or notification operation is activated, it is possible to contribute to the identification of the disturbing person.

  The surveillance camera device further includes a storage unit for storing an initial setting state of a predetermined control target, and the control unit outputs a predetermined time after outputting a control signal for operating the predetermined control target. When the time elapses or when a signal for returning the control target to the initial setting state is input, a control signal for returning the control target to the initial setting state may be output. According to this configuration, the initial setting state of a predetermined control target is stored in the storage unit. Then, if necessary, the control unit outputs a control signal for returning the control target to the initial setting state. As a result, even when a predetermined control target is activated due to an impact or malfunction during an earthquake, if the predetermined time elapses or a signal for returning to the initial setting state is input to the control unit, the control target is Since the initial setting state is restored, the monitoring operation is continued under preset photographing conditions.

  ADVANTAGE OF THE INVENTION According to this invention, the surveillance camera apparatus which can image | photograph and identify the obstructive person with respect to the surveillance camera apparatus is provided.

  Exemplary embodiments of the present invention will be described below in detail with reference to the accompanying drawings. In addition, in this specification and drawing, about the component which has the substantially same function structure, duplication description is abbreviate | omitted by attaching | subjecting the same code | symbol.

  FIG. 1 is a perspective view illustrating surveillance camera devices 100 and 100 ′ according to an embodiment of the invention. FIG. 2 is a cross-sectional view illustrating a state in which the monitoring camera devices 100 and 100 ′ are installed on the ceiling.

  1 and 2 has a dome-like appearance, and includes a base 2, a pan base 71 and a translucent first shielding member 4 as necessary. A camera body and a lens device 30 mounted on the base 2 or the pan base 71 inside the first shielding member 4. As shown in FIG. 2, the lens device 30 is mounted so that the angle θ is variable (tilt operation) with respect to the base 2. The lens device 30 may be mounted so as to be rotatable (panning operation) with respect to the base 2 around the center line C as a rotation axis.

  As illustrated in FIGS. 1 and 2, the lens device 30 can be shielded by the second shielding member 6 inside the first shielding member 4. The 1st and 2nd shielding members 4 and 6 are provided in order to conceal the lens apparatus 30 for the purpose of obstructive action prevention or intimidation suppression. The second shielding member 6 is provided with an opening 7 corresponding to the tilt operation range of the lens device 30. The second shielding member 6 may be mounted on the base 2 so as to be rotatable about the center line C as a rotation axis together with the lens device 30 and the pan base 71.

  On the outer periphery of the lens device 30, a focus ring 16 for adjusting the focus (focus) and a zoom ring 26 for adjusting the focal length (zoom) are provided. In this case, the focus ring 16 and the zoom ring 26 are provided so as to correspond to the focus lens group 10 and the zoom lens group 20 included in the lens device 30, and for example, the front side (subject side) of a lens barrel (not shown). Arranged on the rear side respectively.

  FIG. 3 is a block diagram showing a configuration of the monitoring camera device 100 according to the first embodiment of the present invention. As shown in FIG. 3, the monitoring camera device 100 is roughly divided into a lens device 30 and a camera body.

  The lens device 30 includes a focus lens group 10, a zoom lens group 20, a focus movement mechanism 15, and a zoom movement mechanism 25 that are mounted on a lens barrel. The focus lens group 10 and the zoom lens group 20 are each composed of at least one lens disposed on the optical axis P. The focus and zoom movement mechanisms 15 and 25 include, for example, a lens frame (not shown) that holds the focus lens group 10 and the zoom lens group 20 respectively, a fixed cylinder (not shown) that accommodates the lens frame in a movable state, and Consists of a focus and zoom ring 16, 26, etc. disposed on the outer periphery of the fixed cylinder.

  In the focus and zoom movement mechanisms 15 and 25, for example, an engagement pin (not shown) protruding from the outer peripheral surface of the lens frame and a rectilinear groove (not shown) in the optical axis P direction are provided on the outer periphery of the fixed cylinder. Then, the engaging pin and the rectilinear groove are engaged. In addition, the focus and zoom rings 16 and 26 are rotatably disposed on the outer peripheral surface of the fixed cylinder, and cam grooves (not shown) formed in a spiral manner with respect to the optical axis P on the inner peripheral surface, and a lens The engaging pin of the frame is engaged.

  Here, in the focus moving mechanism 15, according to the rotation of the focus ring 16, the intersection position of the cam shaft of the focus ring 16 and the rectilinear groove of the fixed cylinder moves on the optical axis P, and according to the intersection position. The engaging pin, the lens frame, and the focus lens group 10 are guided by the rectilinear groove and moved on the optical axis P. Thus, by rotating the focus ring 16, the setting position of the focus lens group 10 is adjusted and the focus is adjusted.

  The zoom movement mechanism 25 has the same configuration as the focus movement mechanism 15, and by rotating the zoom ring 26, the setting position of the zoom lens group 20 is adjusted and the focal length is adjusted.

  The camera body includes a focus drive unit 40, a zoom drive unit 45, a tilt holding mechanism 50, an image generation unit 82, an image quality adjustment unit 80, an impact detection unit 85, and a control unit 90. Hereinafter, the camera body will be described in the order of the above components.

  First, the focus drive unit 40 and the zoom drive unit 45 will be described. Since both the drive units 40 and 45 have the same configuration as each other, the focus drive unit 40 will be particularly described below.

  The focus driving unit 40 includes, for example, a motor (not shown) that supplies driving force to the focus moving mechanism 15 and a driving gear (not shown) that transmits the driving force of the motor to the focus ring 16. In this case, a gear portion (not shown) that engages with the drive gear is provided on the outer peripheral surface of the focus ring 16, and the focus drive unit 40 engages with the gear portion of the focus ring 16. Thus, for example, it is attached to the lens device 30 via an attachment portion (not shown).

  The focus driving unit 40 is controlled by the control unit 90 via a control signal described later. The focus drive unit 40 drives the motor by generating a motor drive voltage in accordance with the control signal. The focus drive unit 40 rotates the focus ring 16 by transmitting the rotational force of the motor to the gear unit via the drive gear, and moves the focus lens group 10 on the optical axis P via the focus ring 16. Move. Here, for example, a DC motor can be applied as the motor, but the motor is not limited to such a case.

  The zoom drive unit 45 also has the same configuration as the focus drive unit 40, and rotates the zoom ring 26 to move the zoom lens group 20 on the optical axis P via the zoom ring 26.

  The driving force of the focus and zoom drive units 40 and 45 is transmitted via another mechanism such as a belt mechanism instead of being transmitted to each of the focus and zoom movement mechanisms 15 and 25 via a gear mechanism. You may make it do.

  Next, the tilt holding mechanism 50 will be described. The tilt holding mechanism 50 is a mechanism that can hold the tilt angle of the lens device 30 at a predetermined angle. For example, the tilt holding mechanism 50 is provided on a support portion (not shown) protruding from the base 2 and on the outer peripheral surface of the lens barrel. And a supported portion (not shown), a rod-like connecting portion (not shown), a locking portion (not shown), and the like. Here, the structure of the support part, the supported part, and the connecting part that constitute the exemplified tilt holding mechanism 50 is the structure of the support part 61, the supported part 31, and the tilt shaft part 62 that constitute the tilt drive mechanism described later. Is substantially the same (see FIG. 2).

  In this case, the support part and the supported part are provided with a connection hole (not shown) through which the connection part is inserted, and the supported part is connected to the support part via the connection part inserted into the connection hole. Supported in a rotatable state. The locking portion is provided, for example, so as to be interposed between the connecting portion and the connecting hole, and applies a predetermined resistance force to the rotation of the supported portion relative to the supporting portion by contact resistance. Here, when the impact that is detected as an impact exceeding a predetermined threshold is applied to the surveillance camera device 100 by the impact detection unit 85, which will be described later, the resistance force by the locking portion causes the supported portion to rotate relative to the support portion. It is set to an acceptable level. For this reason, it is desirable that the tilt holding mechanism 50 be provided with an adjustment function capable of arbitrarily adjusting the resistance of the locking portion.

  As a result, the tilt holding mechanism 50 holds the tilt angle of the lens device 30 at a predetermined angle by the resistance force of the locking portion during normal operation. On the other hand, when an impact that is detected by the impact detection unit 85 as an impact exceeding a predetermined threshold is applied to the monitoring camera device 100, the tilt holding mechanism 50 loses the resistance force of the locking portion, thereby causing the lens device 30 to lose. The holding state is released, and the optical axis P of the lens device 30 is changed downward due to the weight of the lens device 30 or an urging force from a separately provided elastic support portion. Note that after the holding state of the lens device 30 is released, the tilt angle of the lens device 30 is manually adjusted again, for example, so that the tilt angle of the lens device 30 is held again at a predetermined angle by the resistance of the locking portion. it can.

  The configuration of the tilt holding mechanism 50 is exemplified by the configuration described above, but is not limited to this configuration, and various other configurations can be applied.

  Next, the image generation unit 82 and the image quality adjustment unit 80 will be described.

  The image generation unit 82 includes, for example, an image sensor (not shown) such as a CCD or CMOS mounted on a substrate (not shown) provided behind the lens device 30. In the imaging device, information such as brightness and color of each part of the subject image focused on the imaging surface (not shown) via the lens device 30 is converted into an electrical data signal, and the data signal is monitored camera device 100. Is output to the image recording unit 110 connected to and recorded as image data. The image generation unit 82 may be provided with an accessory device such as an IR cut filter.

  The image quality adjustment unit 80 temporarily processes the data signal output from the image generation unit 82 to the image recording unit 110. In the image quality adjustment unit 80, for example, the size and resolution of the imaging pixel are adjusted based on the data signal. Thereby, the size, resolution, etc. of the image data recorded in the image recording unit 110 are adjusted.

  The image quality adjustment unit 80 is controlled by the control unit 90 via a control signal described later. The image quality adjustment unit 80 processes the data signal in the high resolution mode according to the control signal, thereby recording clear image data in the image recording unit 110 as compared with the normal time.

  Next, the impact detection unit 85 and the control unit 90 unique to the monitoring camera device 100 according to the present embodiment will be described.

  The impact detection unit 85 includes, for example, an acceleration sensor or a vibration sensor installed on the first shielding member 4, and is connected to the control unit 90. Here, the sensor detects a basic impact intentionally performed by a person, and may have an instantaneous impact detection capability, an ability to avoid a malfunction by removing a high frequency component, and the like. The impact detection unit 85 detects an impact applied to the monitoring camera device 100 through the vibration of the first shielding member 4 and outputs a detection signal corresponding to the degree of impact to the control unit 90.

  Note that the impact detection unit 85 may be provided inside the first shielding member 4 or the like in order to suppress an influence on the impact detection unit 85 due to a disturbing action or an outside air environment. Of course, instead of being installed on the first shielding member 4, the impact detection unit 85 may be installed on the base 2, for example, or may be installed on another part of the monitoring camera device 100. It may be. Furthermore, you may make it install not only in one place but in multiple places. In any case, the impact detection unit 85 detects the impact applied to the monitoring camera device 100 through the vibration of the installation location.

  The control unit 90 includes an arithmetic processing unit such as an MPU or CPU, and is connected to the focus driving unit 40, the zoom driving unit 45, the image quality adjustment unit 80, and the impact detection unit 85. The control unit 90 and the focus driving unit 40, the zoom driving unit 45, the image quality adjustment unit 80, and the impact detection unit 85 may be connected by any type of signal such as wired, wireless, infrared, or light. .

  When the detection signal output from the impact detection unit 85 exceeds a predetermined threshold, the control unit 90 detects an abnormality such as an obstruction to the monitoring camera device 100, and the focus drive unit 40, zoom drive unit 45, and A control signal for controlling a predetermined control target such as the image quality adjustment unit 80 is output.

  Here, as the threshold value of the detection signal, for example, a signal output value corresponding to the degree of normal environmental vibration that changes in accordance with the installation environment and the degree of vibration during an earthquake is set in advance. Note that the threshold value of the detection signal is carefully set according to the installation environment, and needs to be set in consideration of, for example, the impact generated when the shielding members 4 and 6 are attached and detached, the impact strength of the shielding members 4 and 6, and the like. . For this reason, it is desirable that the impact detection unit 85 be provided with an adjustment function capable of arbitrarily adjusting the threshold value of the detection signal.

  Next, operations unique to the monitoring camera device 100 according to the present embodiment will be described.

  According to the monitoring camera device 100 according to the present embodiment, when the control unit 90 detects an abnormality such as a disturbing action, the control unit 90 moves the zoom lens group 20 to the wide end side on the optical axis P via the control signal. The zoom drive unit 45 is controlled. When the control signal is input, the zoom driving unit 45 generates a driving force of the motor so as to move the zoom lens group 20 to the wide end side on the optical axis P. The zoom lens group 20 is moved on the optical axis P by transmitting the driving force of the zoom drive unit 45 to the zoom movement mechanism 25. The movement of the zoom lens group 20 may be set in advance as a predetermined amount of movement toward the wide end, or may be continued until the wide end is reached. As a result, the focal length increases and the angle of view expands, so that a disturbing person who cannot be captured within the shooting range under the preset shooting conditions (focal length) is shot and specified. Here, it is assumed that the disturbing person performs the disturbing action while being located in the vicinity of the surveillance camera device.

  Further, the control unit 90 controls the focus driving unit 40 so as to move the focus lens group 10 on the optical axis P to the closest end side via the control signal. When the control signal is input, the focus driving unit 40 generates a driving voltage for the motor so as to move the focus lens group 20 on the optical axis P to the closest end side. Then, the focus lens group 10 is moved on the optical axis P by transmitting the driving force of the focus driving unit 40 to the focus moving mechanism 15. The movement amount of the focus lens group 10 may be set in advance as a predetermined movement amount toward the close end, or may be continued until the close end is reached. As a result, since the focal point is focused on the subject located in the vicinity of the monitoring camera device 100, the disturber is clearly photographed and specified. Here again, it is assumed that the disturbing person performs the disturbing action while being located in the vicinity of the surveillance camera device.

  Furthermore, the control unit 90 controls the image quality adjustment unit 80 so as to adjust the image quality of the captured image to a high image quality via the control signal. When the control signal is input, the image quality adjustment unit 80 switches the data signal processing mode to the high resolution mode. As a result, the image quality of the photographed image is improved, so that the disturber is clearly photographed and specified.

  On the other hand, when an impact that is detected by the impact detector 85 as an impact exceeding a predetermined threshold is applied to the monitoring camera device 100, the tilt holding mechanism 50 releases the holding state of the lens device 30. In the tilt holding mechanism 50, when an impact exceeding a predetermined threshold is applied to the monitoring camera device 100, for example, the resistance force of the engaging portion that holds the tilt angle of the lens device 30 at a predetermined angle is lost. Accordingly, the holding state of the lens device 30 is released, and the optical axis P is changed downward due to the weight of the lens device 30 or the like. Therefore, when the monitoring camera device 100 is installed at a high place, the monitoring camera device A disturbing person located below 100 is photographed and identified. Here, it is assumed that the disturbing person performs the disturbing action in the vicinity of the surveillance camera device, particularly in a state of being located below.

  The control unit 90 may be connected to the monitoring camera device 100 itself or the illumination device 120 or the warning / notification device 130 installed outside thereof. The control unit 90 and the lighting device 120 or the warning / notification device 130 may be connected by any type of signal such as wired, wireless, infrared, or light.

  The lighting device 120 is installed in or around the monitoring camera device 100 and is connected to the control unit 90 so that the power supply can be controlled via a control signal, and the control unit 90 interferes with the monitoring camera device 100. When an abnormality such as this is detected, power is supplied to the lighting device 120. Thereby, the illumination light is applied to the subject, and the disturber is clearly photographed and specified.

  Here, when the lens device 100 is a day / night compatible type, the IR cut filter attached to the image generation unit 82 may be interlocked with the power supply to the illumination device 120. As a result, the IR cut filter operates, so that even when shooting is performed in the night mode, the disturber is clearly shot and identified.

  The warning / notification device 130 is installed in the monitoring camera device 100 itself, in the vicinity thereof, or outside the installation location, and is connected to the control unit 90 so that the warning / notification operation can be controlled via a control signal. The warning / notification device 130 may be, for example, a warning buzzer installed in the vicinity of the monitoring camera device 100 or a reporting means for reporting an abnormality to the outside of the installation location (for example, a police or a security company). As a result, when the control unit 90 detects an abnormality such as a disturbing action on the monitoring camera device 100, the predetermined warning / notifying operation of the warning / notifying device 130 is activated, which can contribute to the identification of the disturbing person. .

  The control unit 90 may be connected to a storage unit 92 provided in the camera body and at least one of the timer unit 94 and the reset unit 96. The control unit 90, the storage unit 92, the timer unit 94, and the reset unit 96 may be connected by any type of signal such as wired, wireless, infrared, or light.

  The storage unit 92 includes storage means for storing an initial setting state of a predetermined control target, such as the focus drive unit 40, the zoom drive unit 45, and the image quality adjustment unit 80. For example, the control unit 90 stores, in advance, shooting conditions such as a predetermined focus (focus), focal length (zoom), and shooting mode set in advance in the storage unit 92 and reads out from the storage unit 92 as necessary. .

  The timer unit 94 is started by the control unit 90 and notifies the control unit 90 when a predetermined time has elapsed. When the control unit 90 detects an abnormality such as an obstruction to the monitoring camera device 100, the control unit 90 outputs a control signal for operating a predetermined control target and starts a timer unit 94, indicating that a predetermined time has elapsed. When notified, the initial setting state of the control target is read from the storage unit 92, and a control signal for returning to the initial setting state is output. A plurality of timer units 94 may be provided so as to correspond to each of the predetermined control targets.

  The reset unit 96 is provided in the form of, for example, a change button or a change switch instead of the timer unit 94 or together with the timer unit 94. The control unit 90 outputs a control signal for activating a predetermined control target when detecting an abnormality such as an obstruction to the monitoring camera device 100. When the reset unit 96 is switched, the state of the timer unit 94 is output. Regardless of this, the initial setting state of the control target is read from the storage unit, and a control signal for returning to the initial setting state is output.

  As a result, even when a predetermined control target is activated due to malfunction or vibration during an earthquake, if a predetermined time elapses or a signal for returning to the initial setting state is input to the control unit 90, the control target Is restored to the initial setting state, so that the monitoring operation is continued under preset photographing conditions. That is, the control unit 90 moves the zoom lens group 20 to the tele end side and moves the zoom drive unit 45 to the tele end side, for example, contrary to the case where the abnormality is detected and the predetermined control target is operated. Moves the focus lens group 10 to the infinity end side, and the image quality adjustment unit 80 controls each control target so as to change the shooting mode to the normal resolution mode. In addition, the control unit 90 may control the power supply to the lighting device 120 to be cut off, and the warning / notification operation by the warning / notification device 130 to be stopped.

  Note that the reset unit 96 may be provided inside the surveillance camera device 100 or the like in order to suppress an obstruction to the reset unit 96 or the like. The reset unit 96 may output a control signal for returning the control target to the initial setting state after a predetermined time has elapsed after the switching operation. As a result, even when the reset unit 96 is switched immediately after the shielding members 4 and 6 are removed, the imaging conditions set in advance for a predetermined time until the control target is returned to the initial setting state. Then, the disturbing person who cannot be caught within the shooting range is shot and identified.

  FIG. 4 is a block diagram showing a configuration of a monitoring camera device 100 ′ according to the second embodiment of the present invention. In the description of the present embodiment, a duplicate description of the same components as in the first embodiment is omitted.

  As shown in FIG. 4, the monitoring camera device 100 ′ according to the present embodiment includes a tilt rotation mechanism 60 and a pan rotation mechanism instead of the tilt holding mechanism 50 provided in the monitoring camera device 100 according to the first embodiment. 70, a tilt drive unit 65 and a pan drive unit 75.

  The tilt rotation mechanism 60 and the pan rotation mechanism 70 are mechanisms for tilting and panning the lens device 30.

  As illustrated in FIG. 2, the tilt rotation mechanism 60 includes a support portion 61 protruding from a pan base 71 mounted on the base 2, a supported portion 31 provided on the outer peripheral surface of the lens barrel, and a tilt shaft. The unit 62 is configured. In this case, the support portion 61 is provided with a shaft hole 63 through which the tilt shaft portion 62 is inserted, and the supported portion 31 of the lens device 30 is supported through the tilt shaft portion 62 inserted through the shaft hole 63. The part 61 is supported in a rotatable state. The pan rotation mechanism 70 includes, for example, a pan base 71, a base 2 on which the pan base 71 is mounted, a pan shaft portion 72, and the like. In this case, the pan base 71 is provided with a shaft hole 73 through which the pan shaft part 72 is inserted, and the pan base 71 on which the lens device 30 is mounted is inserted through the pan shaft part 72 inserted through the shaft hole 73. The base 2 is supported in a rotatable state.

  Since the tilt driving unit 65 and the pan driving unit 75 have the same configuration, the tilt driving unit 65 will be particularly described below.

  The tilt drive unit 65 includes, for example, a motor (not shown) that supplies a drive force to the tilt rotation mechanism 60, a drive gear (not shown) that transmits the drive force of the motor to the tilt shaft unit 62, and the like. In this case, a gear portion (not shown) that is engaged with the drive gear is provided on the outer peripheral surface of the tilt shaft portion 62, and the tilt drive portion 65 is engaged with the gear portion of the tilt shaft portion 62. It is connected to the tilt rotation mechanism 60 so as to match. In this case, the tilt shaft portion 62 is fixed to the supported portion 31 of the lens device 30. Here, as the motor, for example, a DC motor, a slip motor, or the like can be applied, but the motor is not limited to such a case.

  The tilt driving unit 65 is controlled by the control unit 90 via a control signal described later. The tilt driving unit 65 drives the motor by generating a driving voltage for the motor in accordance with the control signal. Then, the tilt driving unit 65 rotates the tilt shaft unit 62 and tilts the lens device 30 relative to the pan table 71 by transmitting the rotational force of the motor to the gear unit via the drive gear.

  The pan driving unit 75 has the same configuration as that of the tilt driving unit 65, rotates the pan shaft unit 72, and rotates the lens device 30 together with the pan base 71 with respect to the base 2.

  The driving force of the tilt and pan driving units 65 and 75 is transmitted via another mechanism such as a belt mechanism instead of being transmitted to the tilt and pan rotation mechanisms 60 and 70 via the gear mechanism. It may be. Further, the driving force of the tilt and pan driving units 65 and 75 is transmitted to the lens device 30 and the pan base 71 that are rotation targets, instead of being transmitted to the tilt and pan shaft units 62 and 72, respectively. Also good. In this case, the tilt shaft portion 62 and the pan shaft portion 72 are fixed to the pan base 71 and the base 2, respectively.

  The control unit 90 ′ of the monitoring camera device 100 ′ according to the present embodiment is partially different from the control unit 90 of the first embodiment. That is, the control unit 90 ′ is also connected to the tilt driving unit 65 and the pan driving unit 75. The control unit 90 ′ and the tilt driving unit 65 or pan driving unit 75 may be connected by any type of signal such as wired, wireless, infrared, or light.

  Next, operations unique to the monitoring camera device 100 ′ according to the present embodiment will be described.

  According to the monitoring camera device 100 ′ according to the present embodiment, the control unit 90 ′ controls the tilt and / or pan driving units 65 and 75 so that the lens device 30 performs a predetermined tilt and / or pan operation. When the control signal is input, the tilt and / or pan driving units 65 and 75 generate a driving voltage for the motor so that the lens device 30 performs a predetermined tilt and / or pan operation. Then, the driving force of the tilt and / or pan driving units 65 and 75 is transmitted to the tilt and / or pan rotation mechanisms 60 and 70, thereby causing the lens device 30 to perform a predetermined tilt and / or pan rotation.

  As a result, the optical axis P of the lens device 30 is controlled to a predetermined angle, so that an interfering person who cannot be captured within the shooting range under the preset shooting conditions (tilt angle, pan angle) is shot and specified. . In this case, control data for controlling the tilt and / or pan operation is stored in advance in the control unit 90 ′ or the storage unit 92 ′. For example, the optical axis P of the lens device 30 is adjusted downward by the tilt operation. Thereafter, the periphery of the monitoring camera device 100 ′ may be photographed while the lens device 30 is panned at a constant period.

  In addition, the storage unit 92 ′ connected to the control unit 90 ′ includes the focus driving unit 40, the zoom driving unit 45, the image quality adjusting unit 80, the tilt driving unit 65, the pan driving unit 75, and the like. The state of is memorized. In this case, for example, the control unit 90 ′ stores in advance, in the storage unit 92 ′, shooting conditions such as a predetermined focus (focus), focal length (zoom), shooting mode, tilt angle, and pan angle. The data is read from the storage unit 92 ′ as necessary.

  As mentioned above, although preferred embodiment of this invention was described referring an accompanying drawing, it cannot be overemphasized that this invention is not limited to the example which concerns. It will be apparent to those skilled in the art that various changes and modifications can be made within the scope of the claims, and these are naturally within the technical scope of the present invention. Understood.

  For example, in the above description, the embodiment in the case where the monitoring camera devices 100 and 100 ′ include the dome-shaped shielding members 4 and 6 is illustrated, but the application target of the present invention is not limited to the case. Absent. In other words, the present invention can be similarly applied to various monitoring camera devices that are not limited to the dome shape or camera devices other than the monitoring purpose.

  In the above description, the case where the image generation unit 82 is configured by an image sensor such as a CCD or CMOS and the image of the subject is handled as a digital signal has been described. However, the application target of the present invention is limited to such a case. It is not something. That is, the present invention can be similarly applied to a case where an image of a subject is handled as an analog signal.

  Moreover, in the above-described explanatory diagram, one-way or two-way information transmission between various components constituting the monitoring camera device 100, 100 ′ according to the embodiment is illustrated, but the application target of the present invention is concerned It is not limited to. In other words, the present invention can be similarly applied even when information transmission is performed in various directions constituting the monitoring camera devices 100 and 100 ′ according to the present invention in directions not illustrated (for example, bidirectional rather than one direction). It is a thing.

  In the above-described explanatory diagram, the case where the image quality adjustment unit 80, the storage units 92 and 92 ′, the timer units 94 and 94 ′, and the reset units 96 and 96 ′ are configured independently of the control units 90 and 90 ′ is illustrated. However, the application target of the present invention is not limited to such a case. That is, according to the present invention, at least one of the image quality adjustment unit 80, the storage units 92 and 92 ′, the timer units 94 and 94 ′, and the reset units 96 and 96 ′ constituting the monitoring camera devices 100 and 100 ′ is controlled by the control units 90 and 90. Even if it is formed integrally with ', it can be similarly applied.

1 is a perspective view illustrating a surveillance camera device according to an embodiment of the invention. It is sectional drawing which illustrates the surveillance camera apparatus which concerns on embodiment of this invention. It is a block diagram which shows the structure of the surveillance camera apparatus which concerns on the 1st Embodiment of this invention. It is a block diagram which shows the structure of the surveillance camera apparatus which concerns on the 2nd Embodiment of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Focus lens group 15 Focus moving mechanism 20 Zoom lens group 25 Zoom moving mechanism 30 Lens apparatus 40 Focus drive part 45 Zoom drive part 50 Tilt holding mechanism 60 Tilt rotation mechanism 65 Tilt drive part 70 Pan rotation mechanism 75 Pan drive part 80 Image quality adjustment Unit 85 Impact detection unit 90, 90 ′ Control unit 92, 92 ′ Storage unit 100, 100 ′ Monitoring camera device 120 Illumination device 130 Warning / notification device

Claims (9)

An impact detection unit for detecting an impact applied to the surveillance camera device;
A control unit that outputs at least one control signal for operating a predetermined control object when the detected impact exceeds a predetermined threshold;
A lens apparatus having a zoom movement mechanism for moving the zoom lens group;
A zoom drive unit that moves the zoom lens group on the optical axis via the zoom movement mechanism, and
The monitoring camera device, wherein the control signal includes a control signal for controlling the zoom driving unit so as to move the zoom lens group to the wide end side on the optical axis.   The lens device further includes a focus movement mechanism for moving the focus lens group, and further includes a focus drive unit that moves the focus lens group on the optical axis via the focus movement mechanism, and the control signal is The surveillance camera device according to claim 1, further comprising a control signal for controlling the focus driving unit so as to move the focus lens group toward the closest end on the optical axis.   A tilt holding mechanism that can hold the tilt angle of the lens device at a predetermined angle is further included, and the tilt holding mechanism detects an impact that is detected by the impact detection unit as an impact that exceeds a predetermined threshold. The surveillance camera according to claim 1, wherein the holding state of the lens device is released when the lens device is added.   A tilt rotation mechanism for tilting and rotating the lens device; and a tilt drive unit for tilting the lens device via the tilt rotation mechanism, wherein the control signal is a predetermined tilt operation on the lens device. The surveillance camera device according to claim 1, further comprising a control signal for controlling the tilt driving unit so that   A pan rotation mechanism for panning the lens device; and a pan driving unit for panning the lens device via the pan rotation mechanism, wherein the control signal causes the lens device to perform a predetermined pan operation. The surveillance camera apparatus according to claim 4, further comprising a control signal for controlling the pan driving unit so as to perform the operation.   An image quality adjustment unit for adjusting the image quality of the photographed image is further provided, and the control signal further includes a control signal for controlling the image quality adjustment unit so as to adjust the image quality of the photographed image to a high image quality. The surveillance camera device according to any one of claims 1 to 5.   The said control part has a connection with an illuminating device, The said control signal further contains the control signal for controlling the power supply with respect to the said illuminating device, The one in any one of Claims 1-6 characterized by the above-mentioned. Surveillance camera device.   The control unit has a connection with a warning device and / or a notification device, and the control signal further includes a control signal for controlling a warning operation and / or a notification operation via the warning device and / or the notification device. The surveillance camera device according to any one of claims 1 to 7, wherein   A storage unit for storing an initial setting state of the predetermined control object, wherein the control unit outputs a control signal for operating the predetermined control object; Or a control signal for returning the control target to the initial setting state when a signal for returning the control target to the initial setting state is input. The surveillance camera device according to any one of the above.

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