JP2017224882A - Monitoring camera controller - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a monitoring camera controller which allows for automatic readjustment of the imaging direction of a monitoring camera, or the field angle, without requiring an operator to go to the site.SOLUTION: A monitoring camera controller includes: a control unit for determining whether or not the difference between the installation angle of a monitoring camera at a reference position, and the installation angle of the monitoring camera at the current position is equal to or more than a threshold; a correction amount calculation unit calculating a correction amount for returning the monitoring camera from the current position to the reference position, when the control unit determines that the difference between the installation angle of the monitoring camera at the reference position, and the installation angle of the monitoring camera at the current position is equal to or more than the threshold; a lens control unit for adjusting the lens position in the monitoring camera on the basis of the correction amount calculated by the correction amount calculation unit; and a pan head control unit for adjusting the pan head position in the monitoring camera on the basis of the correction amount calculated by the correction amount calculation unit.SELECTED DRAWING: Figure 2

Description

  The present invention relates to a surveillance camera control device that detects a change in the installation angle of a surveillance camera.

Conventionally, in video surveillance systems, when the installation angle changes due to the influence of weather, disaster, aging, etc., the base on which the surveillance camera is installed or the support column itself is imaged by the surveillance camera. It was necessary to judge the change by looking at the video, go to the site and manually readjust the shooting direction and angle of view at the time of the facility.
On the other hand, as a technique for detecting the movement of the monitoring camera, for example, in Patent Document 1, the acceleration along the reference axis direction is compared with the reference value stored in advance in the reference axis direction. A technique for obtaining a change amount, detecting unauthorized movement of the surveillance camera based on the change amount, and outputting an alarm is disclosed.

JP 2012-70223 A

However, in the technique disclosed in Patent Document 1, even if the operator can notify the operator of the unauthorized movement of the surveillance camera by an alarm, the operator goes to the site and manually captures the shooting direction or angle of view. There is a problem that it takes time and effort to readjust the shooting direction or the angle of view.
In Patent Document 1, when the monitoring camera includes a drive unit for panning and tilting the image pickup unit, control can be performed so as to return to the reference posture when a change in the posture of the monitoring camera is detected. Although disclosed, even if a change in posture in the pan direction or tilt direction can be detected, for example, a change in posture in a direction other than the pan direction or tilt direction, such as the rotation direction, side-slip direction, and vertical-slip direction of the surveillance camera, is detected. There was still a problem that the problem that the operator had to go to the site and manually readjust the shooting direction or the angle of view had not been solved.

  The present invention has been made to solve the above-described problems, and can be used to automatically adjust the imaging direction or angle of view of the monitoring camera without the operator having to visit the site. The purpose is to provide.

  The monitoring camera control device according to the present invention includes a control unit that determines whether the difference between the installation angle of the monitoring camera at the reference position and the installation angle of the monitoring camera at the current position is greater than or equal to a threshold value, and the control unit, Correction that calculates a correction amount for returning the surveillance camera from the current position to the reference position when it is determined that the difference between the installation angle of the surveillance camera at the reference position and the installation angle of the surveillance camera at the current position is greater than or equal to the threshold value An amount calculation unit, a lens control unit that adjusts the lens position in the monitoring camera based on the correction amount calculated by the correction amount calculation unit, and a pan head position in the monitoring camera based on the correction amount calculated by the correction amount calculation unit And a pan head control unit.

  According to the present invention, it is possible to automatically readjust the imaging direction or angle of view of the surveillance camera without the operator visiting the site.

It is a block diagram of the surveillance camera carrying the surveillance camera control apparatus which concerns on Embodiment 1 of this invention. It is a block diagram of the surveillance camera control apparatus which concerns on Embodiment 1 of this invention. It is a block diagram of the control part with which the surveillance camera control apparatus which concerns on Embodiment 1 of this invention is provided. It is a flowchart explaining the operation | movement of the surveillance camera control apparatus which concerns on Embodiment 1 of this invention. It is a flowchart explaining in detail the operation | movement of the reference | standard position information registration process in step ST401 of FIG. 5 is a flowchart illustrating in detail an operation of current position information registration processing in step ST403 of FIG. 7A and 7B are diagrams showing an example of a hardware configuration of the surveillance camera control device according to Embodiment 1 of the present invention. It is a block diagram of the monitoring system which consists of the monitoring camera and operator monitoring apparatus which mount the monitoring camera control apparatus which concerns on Embodiment 2 of this invention. It is a block diagram of the surveillance camera control apparatus which concerns on Embodiment 2 of this invention. It is a block diagram of the control part with which the surveillance camera control apparatus which concerns on Embodiment 2 of this invention is provided. It is a flowchart explaining operation | movement of the surveillance camera control apparatus which concerns on Embodiment 2 of this invention. It is a block diagram of the surveillance camera carrying the surveillance camera control apparatus which concerns on Embodiment 3 of this invention. It is a block diagram of the surveillance camera control apparatus which concerns on Embodiment 3 of this invention. It is a block diagram of the control part with which the surveillance camera control apparatus which concerns on Embodiment 3 of this invention is provided. It is a flowchart explaining operation | movement of the surveillance camera control apparatus which concerns on Embodiment 3 of this invention. 16 is a flowchart illustrating in detail an operation of reference position information registration processing in step ST1501 of FIG. It is a flowchart explaining in detail the operation | movement of the present position information registration process in step ST1503 of FIG. In the third embodiment, an example of an image cut-out position calculation operation for returning the monitoring camera to the reference position by the correction amount calculation unit when the monitoring camera that is an omnidirectional camera rotates with the center position fixed will be described. FIG. In Embodiment 3, when a surveillance camera that is an omnidirectional camera is translated about the X, Y, and Z axes, the correction amount calculation unit calculates an image cutout position for returning the surveillance camera to the reference position. It is a figure explaining an example of operation. It is a block diagram of the surveillance camera carrying the camera control apparatus which concerns on Embodiment 5 of this invention. It is a block diagram of the surveillance camera control apparatus which concerns on Embodiment 5 of this invention. It is a block diagram of the control part with which the surveillance camera control apparatus which concerns on Embodiment 5 of this invention is provided. It is a flowchart explaining operation | movement of the surveillance camera control apparatus which concerns on Embodiment 5 of this invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
Embodiment 1 FIG.
FIG. 1 is a configuration diagram of a surveillance camera 100 equipped with a surveillance camera control device 1 according to Embodiment 1 of the present invention.
In the following description, as an example, it is assumed that surveillance camera control device 1 according to Embodiment 1 of the present invention is mounted on surveillance camera 100. In the first embodiment, the surveillance camera 100 is assumed to be a turning surveillance camera equipped with a lens platform 30 and a pan head (not shown) having a pan head mechanism 40. In the first embodiment, it is assumed that the monitoring camera 100 includes the pan head.
The surveillance camera control device 1 of the surveillance camera 100 is connected to the external sensor 2 via a network.

The external sensor 2 is, for example, a sensor that is installed on a base on which the monitoring camera 100 is installed, a support column, or the like, and acquires an installation angle of the monitoring camera 100. Specifically, the external sensor 2 is an electronic compass, a tilt sensor, a gyro sensor, that is, an angular velocity sensor, an acceleration sensor, or the like. Based on the installation angle information of the monitoring camera 100 output from these external sensors 2, the installation angle of the base on which the monitoring camera 100 is installed or the support column itself is affected by the weather, disaster, deterioration over time, etc. It is possible to detect or measure changes.
The monitoring camera control device 1 acquires information about the installation angle of the monitoring camera 100 output from these external sensors 2, and if the monitoring camera 100 determines that the installation angle of the monitoring camera 100 has changed, the lens included in the monitoring camera 100 Control for adjusting the positions of the mechanism 30 and the pan head mechanism 40 is performed.

The pan head mechanism 40 of the pan head has a function of mechanically operating the surveillance camera 100 in the pan direction, the tilt direction, the roll, the side slip direction, and the vertical slip direction. Specifically, the pan head mechanism 40 includes a motor or the like. Note that the pan direction is the horizontal or horizontal direction, the tilt direction is the vertical or vertical direction, and the roll is rotation.
The lens mechanism 30 has functions such as zoom, focus, image rotation, that is, rotation.

  Here, as shown in FIG. 1, it is assumed that the surveillance camera control device 1 is mounted on the surveillance camera 100, but not limited to this, the surveillance camera control device 1 is located outside the surveillance camera 100. It may be provided to control the lens mechanism 30 and the pan head mechanism 40 in the monitoring camera 100 via a communication network such as the Internet.

FIG. 2 is a configuration diagram of the monitoring camera control device 1 according to the first embodiment of the present invention.
As shown in FIG. 2, the surveillance camera control device 1 includes an installation angle acquisition unit 11, a control unit 12, a correction amount calculation unit 13, a lens control unit 14, a pan head control unit 15, and a storage unit 16. Is provided.
The control unit 12 controls operations of the installation angle acquisition unit 11, the correction amount calculation unit 13, the lens control unit 14, and the pan head control unit 15.

FIG. 3 is a configuration diagram of the control unit 12 included in the surveillance camera control device 1 according to Embodiment 1 of the present invention.
As shown in FIG. 3, the control unit 12 includes a lens control request unit 121, a pan head control request unit 122, an installation angle acquisition request unit 123, a position registration control unit 124, a difference determination unit 125, and a correction amount. The calculation request unit 126 and the timing determination unit 127 are included.
The lens control request unit 121 outputs a lens position acquisition request to the lens control unit 14, and the lens control unit 14 provides information on the position of the lens, that is, the lens mechanism 30, such as zoom, focus, and image rotation. Acquired as mechanism position information. When acquiring the lens mechanism position information from the lens control unit 14, the lens control requesting unit 121 outputs the lens mechanism position information to the position registration control unit 124.
Further, the lens control request unit 121 outputs a lens adjustment instruction for adjusting the lens mechanism 30 based on the lens control amount calculated by the correction amount calculation unit 13 to the lens control unit 14.

The pan head control request unit 122 outputs a pan head position acquisition request to the pan head control unit 15, and information about the pan head position such as pan and tilt is transmitted from the pan head control unit 15 to the pan head mechanism position information. Get as. Upon obtaining the pan head mechanism position information from the pan head control unit 15, the pan head control request unit 122 outputs the pan head mechanism position information to the position registration control unit 124.
In addition, the pan head control request unit 122 outputs a pan head adjustment instruction to the pan head control unit 15 to adjust the pan head mechanism 40 based on the pan head control amount calculated by the correction amount calculation unit 13.

The installation angle acquisition request unit 123 sets the installation angle with respect to the installation angle acquisition unit 11 at a preset time, such as when the monitoring camera 100 is installed, or when the timing determination unit 127 determines that the control timing has come. An acquisition request is output, and camera installation angle information is acquired from the installation angle acquisition unit 11.
The installation angle acquisition request unit 123 associates the camera installation angle information acquired from the installation angle acquisition unit 11 at a preset time, for example, when the monitoring camera 100 is installed, with the acquisition date and time as the camera installation angle information at the reference position. At the same time, it is output to the location registration control unit 124.
In the first embodiment, a position where the monitoring camera 100 is normal, that is, a position where a desired monitoring area can be appropriately captured is set as a reference position.
In addition, the installation angle acquisition request unit 123 outputs the camera installation angle information acquired from the installation angle acquisition unit 11 at the control timing to the position registration control unit 124 in association with the acquisition date and time as camera installation angle information at the current position. . In the first embodiment, the position where the monitoring camera 100 is installed at the time when the preset control timing is reached is referred to as the current position. In the first embodiment, the camera installation angle information at the current position, that is, the latest camera installation angle information at a preset control timing is used as the camera installation angle information at the current position.
The camera installation angle information at the reference position or the acquisition date information associated with the camera installation angle information at the current position is acquired from, for example, a clock internally held by the control unit 12 and given. What should I do?

  The position registration control unit 124 causes the storage unit 16 to store the camera installation angle information at the reference position output from the installation angle acquisition request unit 123 as reference position information. Further, the position registration control unit 124 causes the storage unit 16 to store the camera installation angle information at the current position output from the installation angle acquisition request unit 123 as the current position information. As a result, the storage unit 16 stores the camera installation angle information at the reference position and the camera installation angle information at the current position in association with the acquisition date / time information. Further, the position registration control unit 124 acquires the lens mechanism position information from the lens control request unit 121 and acquires the pan position information from the head control request unit 122, respectively. The information is stored in the storage unit 16 in association with the camera installation angle information at the position.

The difference determination unit 125 is based on the reference position information stored in the storage unit 16 and the latest current position information, and the difference between the installation angle of the monitoring camera at the reference position and the installation angle of the monitoring camera at the current position is equal to or greater than a threshold value. It is determined whether or not. If the difference determination unit 125 determines that the difference between the installation angle of the monitoring camera at the reference position and the installation angle of the monitoring camera at the current position is greater than or equal to the threshold value, the difference determination unit 125 Information indicating that the difference from the installation angle of the monitoring camera at the position is equal to or greater than the threshold is output to the correction amount calculation requesting unit 126.
The correction amount calculation request unit 126 outputs information indicating that the difference between the installation angle of the monitoring camera at the reference position and the installation angle of the monitoring camera at the current position is greater than or equal to the threshold value from the difference determination unit 125. The correction amount calculation request is output to the correction amount calculation unit 13, and the lens control amount for returning the lens mechanism 30 from the current position to the reference position and the pan head mechanism 40 are output from the correction amount calculation unit 13 to the current position. The pan head control amount for returning to the reference position is acquired. The correction amount calculation request unit 126 outputs the acquired lens control amount and pan head control amount information to the lens control request unit 121 and the pan head control request unit 122, respectively.

The timing determination unit 127 determines whether or not the control timing for controlling the monitoring camera 100 has come.
In the first embodiment, the control of the monitoring camera 100 refers to control for adjusting the positions of the lens mechanism 30 provided in the monitoring camera 100 of the monitoring camera and the pan head mechanism 40 included in the pan head. The timing determination unit 127 determines whether or not the control timing for confirming the position information of the lens mechanism 30 and the pan head mechanism 40 of the monitoring camera 100 has come.
The control timing is set to a predetermined constant period.

Returning to the description of FIG.
When the installation angle acquisition request is output from the installation angle acquisition request unit 123, the installation angle acquisition unit 11 acquires information about the current installation angle of the monitoring camera 100 itself from the external sensor 2 as camera installation angle information, and acquires it. The obtained camera installation angle information is output to the installation angle acquisition request unit 123. In the first embodiment, the camera installation angle information acquired from the external sensor 2 includes information on the direction in which the monitoring camera 100 is installed or installation inclination.
When the correction amount calculation request is output from the correction amount calculation request unit 126, the correction amount calculation unit 13 refers to the reference position information and the current position information stored in the storage unit 16, and moves the lens mechanism 30 to the current position. The lens control amount for returning from the current position to the reference position and the head control amount for returning the head mechanism 40 from the current position to the reference position are calculated. In the first embodiment, the lens control amount and the pan head control amount are also referred to as correction amounts.

  When a lens position acquisition request is output from the lens control request unit 121, the lens control unit 14 acquires information on the current lens, that is, the position of the lens mechanism 30 from the lens mechanism 30, and the lens mechanism position information Output to the control request unit 121. Further, when a lens adjustment instruction is output from the lens control request unit 121, the lens control unit 14 adjusts the lens mechanism 30 based on the lens control amount acquired from the lens control request unit 121. Specifically, the lens control unit 14 causes the lens mechanism 30 to adjust the zoom, focus, image rotation, that is, rotation of the lens of the monitoring camera 100 based on the lens control amount.

When the head position acquisition request is output from the head control requesting unit 122, the head control unit 15 acquires information on the current head position from the head mechanism 40, and the head control position information To the table control requesting unit 122. Further, when the head control instruction is output from the head control request unit 122, the head control unit 15 adjusts the head mechanism 40 based on the head control amount acquired from the head control request unit 122. Specifically, the pan head control unit 15 causes the pan head mechanism 40 to adjust the pan head, tilt direction, roll, skid direction, and vertical slip direction of the pan head based on the pan head control amount.
The storage unit 16 stores reference position information and current position information. In the first embodiment, as shown in FIG. 2, the monitoring camera control device 1 is provided with the storage unit 16, but the storage unit 16 is not limited thereto, and the storage unit 16 is external to the monitoring camera control device 1. The surveillance camera control device 1 may be provided in a place where it can be referred to.

FIG. 4 is a flowchart for explaining the operation of the monitoring camera control apparatus 1 according to the first embodiment of the present invention.
For example, at a preset time such as when the monitoring camera 100 is installed, the control unit 12 performs a reference position information registration process (step ST401). Specifically, when the monitoring camera 100 is installed, the control unit 12 receives a reference position information registration instruction from an administrator or the like, and performs the process of step ST401 when the reference position information registration instruction is received. For example, the administrator or the like may issue a reference position information registration instruction by, for example, pressing an instruction button installed on the monitoring camera 100. This is merely an example, and the control unit 12 may receive the reference position information registration instruction by other methods.

Here, FIG. 5 is a flowchart illustrating in detail the operation of the reference position information registration process in step ST401 of FIG.
First, the installation angle acquisition request unit 123 of the control unit 12 outputs an installation angle acquisition request to the installation angle acquisition unit 11 (step ST501).
The installation angle acquisition unit 11 receives an installation angle acquisition request, acquires information about the current installation angle of the monitoring camera 100 itself from the external sensor 2 as camera installation angle information, and requests the acquired camera installation angle information for an installation angle acquisition request. Output to unit 123 (step ST502).
When the installation angle acquisition request unit 123 acquires the camera installation angle information from the installation angle acquisition unit 11, the installation angle acquisition request unit 123 associates the camera installation angle information with the acquisition date and time as camera installation angle information at the reference position to the position registration control unit 124. Output.

The lens control request unit 121 of the control unit 12 outputs a lens position acquisition request to the lens control unit 14 (step ST503).
The lens control unit 14 acquires information on the current lens, that is, the position of the lens mechanism 30 from the lens mechanism 30, and outputs the information as lens mechanism position information to the lens control request unit 121 (step ST504).
When acquiring the lens mechanism position information from the lens control unit 14, the lens control request unit 121 outputs the lens mechanism position information to the position registration control unit 124 as lens mechanism position information at the reference position.

The pan head control request unit 122 outputs a pan head position acquisition request to the pan head control unit 15 (step ST505).
The pan head control unit 15 acquires information on the current pan head position from the pan head mechanism 40, and outputs the information to the pan head control request unit 122 as pan head mechanism position information (step ST506).
When the pan head control request unit 122 acquires the pan head mechanism position information from the pan head control unit 15, the pan head control request unit 122 outputs the pan head mechanism position information to the position registration control unit 124 as pan head mechanism position information at the reference position.

  The position registration control unit 124 stores the camera installation angle information at the reference position, which is associated with the acquisition date and time, output from the installation angle acquisition request unit 123 in step ST502, as the reference position information in the storage unit 16 (step S102). ST507). In addition, the position registration control unit 124, the lens mechanism position information at the reference position output from the lens control request unit 121 in step ST504, and the pan head mechanism position at the reference position output from the camera platform control request unit 122 in step ST506. Information is stored in the storage unit 16 in association with the reference position information.

Returning to the flowchart of FIG.
When the reference position information registration process is performed in step ST401, the timing determination unit 127 of the control unit 12 determines whether or not the control timing for controlling the monitoring camera 100 has come (step ST402).
In step ST402, when it is determined that it is not the control timing (in the case of “NO” in step ST402), the process of step ST402 is repeated and waits until the control timing comes.

  When it is determined in step ST402 that the control timing has come (in the case of “YES” in step ST402), the control unit 12 performs a current position information registration process (step ST403).

Here, FIG. 6 is a flowchart for explaining in detail the operation of the current position information registration process in step ST403 of FIG.
The installation angle acquisition request unit 123 outputs an installation angle acquisition request to the installation angle acquisition unit 11 (step ST601).
The installation angle acquisition unit 11 receives an installation angle acquisition request, acquires information about the current installation angle of the monitoring camera 100 itself from the external sensor 2 as camera installation angle information, and requests the acquired camera installation angle information for an installation angle acquisition request. Is output to unit 123 (step ST602).
When the installation angle acquisition request unit 123 acquires the camera installation angle information from the installation angle acquisition unit 11, the installation angle acquisition request unit 123 associates the camera installation angle information with the acquisition date and time as camera installation angle information at the current position to the position registration control unit 124. Output.

The lens control request unit 121 of the control unit 12 outputs a lens position acquisition request to the lens control unit 14 (step ST603).
The lens control unit 14 acquires information regarding the current lens, that is, the position of the lens mechanism 30, from the lens mechanism 30, and outputs the information as lens mechanism position information to the lens control request unit 121 (step ST604).
When acquiring the lens mechanism position information from the lens control unit 14, the lens control request unit 121 outputs the lens mechanism position information to the position registration control unit 124 as lens mechanism position information at the current position.

The pan head control request unit 122 outputs a pan head position acquisition request to the pan head control unit 15 (step ST605).
The pan head control unit 15 acquires information on the current pan head position from the pan head mechanism 40, and outputs the information to the pan head control request unit 122 as pan head mechanism position information (step ST606).
When the pan head control request unit 122 acquires the pan head mechanism position information from the pan head control unit 15, the pan head control request unit 122 outputs the pan head mechanism position information to the position registration control unit 124 as the pan head mechanism position information at the current position.

  The position registration control unit 124 stores the camera installation angle information at the current position output from the installation angle acquisition request unit 123 in step ST602 and associated with the acquisition date and time in the storage unit 16 as the current position information (step S202). ST607). Further, the position registration control unit 124, the lens mechanism position information at the current position output from the lens control request unit 121 in step ST604, and the pan head mechanism position at the current position output from the camera platform control request unit 122 in step ST606. The information is stored in the storage unit 16 in association with the current position information.

Returning to the flowchart of FIG.
The difference determination unit 125 refers to the storage unit 16 and determines whether the difference between the reference position and the current position is greater than or equal to a threshold based on the reference position information stored in the storage unit 16 and the latest current position information ( Step ST404). Specifically, the difference determination unit 125 includes the reference position information stored in the storage unit 16, that is, camera installation angle information at the reference position, and the current position information stored in the storage unit 16, that is, the camera installation angle at the current position. If the difference between the installation angle of the monitoring camera 100 at the reference position and the installation angle of the monitoring camera 100 at the current position is equal to or greater than the threshold value, the imaging direction or the angle of view of the monitoring camera 100 needs to be adjusted. If the difference between the installation angle of the monitoring camera 100 at the reference position and the installation angle of the monitoring camera 100 at the current position is less than the threshold value, the imaging direction or the angle of view of the monitoring camera 100 needs to be adjusted. Judge that is not. The threshold value can be set as appropriate.
If it is determined in step ST404 that the difference between the reference position and the current position is not greater than or equal to the threshold value (in the case of “NO” in step ST404), the process returns to step ST402.

If it is determined in step ST404 that the difference between the reference position and the current position is greater than or equal to the threshold value (in the case of “YES” in step ST404), that is, the imaging direction of the monitoring camera 100 or the angle of view needs to be adjusted. If it is determined that there is a difference, the difference determination unit 125 obtains information indicating that the difference between the installation angle of the monitoring camera at the reference position and the installation angle of the monitoring camera at the current position is greater than or equal to a threshold value, and a correction amount calculation request unit It outputs to 126.
Then, the correction amount calculation request unit 126 outputs a correction amount calculation request to the correction amount calculation unit 13 (step ST405).

  The correction amount calculation unit 13 refers to the reference position information and the current position information stored in the storage unit 16, the lens control amount for returning the lens mechanism 30 from the current position to the reference position, and the pan head mechanism 40. Is calculated from the current position to the reference position (step ST406).

Here, an example of a method for calculating the lens control amount and the pan head control amount by the correction amount calculation unit 13 will be described.
Here, as an example, an angular velocity sensor such as an electronic compass or a gyro sensor or a triaxial acceleration sensor is used as the external sensor 2, and the monitoring camera control device 1 uses the electronic compass, the angular velocity sensor, and the acceleration sensor to monitor the camera 100. The camera installation angle information is acquired.

When the external sensor 2 is an electronic compass, the installation angle acquisition unit 11 acquires the angle of the monitoring camera 100 with respect to the two axes (X, Y), and the control unit 12 uses the change angle information with respect to the two axes as a reference. The information is stored in the storage unit 16 as position information and current position information. The two axes (X, Y) mean the pan direction and the tilt direction of the monitoring camera 100.
The correction amount calculation unit 13 acquires a change angle of the installation angle of the monitoring camera 100 from the reference position to the current position, and calculates a pan motor correction amount and a tilt motor correction amount of the pan head mechanism 40 from the change angle. .

When the external sensor 2 is a sensor that outputs angular velocity information such as a gyro sensor, the installation angle acquisition unit 11 uses the three axes (X, Y, Z) as axes and the angular velocity of the monitoring camera 100 with respect to the three axes [ rad / sec] is acquired, and the control unit 12 stores the angular velocities with respect to the three axes in the storage unit 16 as reference position information and current position information. The Z-axis here means image rotation of the monitoring camera 100.
The correction amount calculation unit 13 acquires the change angle [rad] of the installation angle of the monitoring camera 100 from the reference position to the current position, and the pan motor correction amount and the tilt motor correction amount of the pan head mechanism 40 from the change angle. Then, the tilt correction amount of the image of the lens mechanism 30, that is, the image rotation is calculated.
The correction amount calculation unit 13 may integrate and add the current position information stored in the storage unit 16 to obtain the change angle [rad] of the installation angle of the monitoring camera 100 from the reference position to the current position. . In this case, the acquisition of the current position based on the angular velocity obtained from the angular velocity sensor needs to continuously integrate the angular velocity obtained from each external sensor 2 in a sufficiently short cycle period, so that the control timing is set to a shorter period. The current position information is acquired and stored. With a sufficiently short cycle period, for example, a period according to the sensor such as a period of several msec is appropriately set.

When the external sensor 2 is a sensor that outputs triaxial acceleration information, the installation angle acquisition unit 11 uses the three axes (X, Y, Z) as axes, and the acceleration [m of the monitoring camera 100 with respect to the three axes [m] / Sec ² ] is acquired, and the control unit 12 stores the acceleration with respect to the three axes in the storage unit 16 as reference position information and current position information.
The correction amount calculation unit 13 acquires the change amount of the installation coordinates of the monitoring camera 100 from the reference position to the current position, and from the change amount, the correction amount of the skid motor of the pan head mechanism 40, the correction amount of the vertical slip motor, A correction amount such as zoom and focus of the lens mechanism 30 is calculated.
The correction amount calculation unit 13 calculates the installation position of the monitoring camera 100 by performing double integral addition of the current position information stored in the storage unit 16, that is, acceleration, and monitors the monitoring camera from the reference position to the current position. What is necessary is just to acquire the variation | change_quantity of 100 installation coordinates. In this case, the acquisition of the current position based on the acceleration obtained from the acceleration sensor requires that the acceleration acquired from each external sensor 2 be continuously double-integrated in a sufficiently short cycle period. The current position information is acquired and stored in a short cycle. With a sufficiently short cycle period, for example, a period according to the sensor such as a period of several msec is appropriately set.

The correction amount calculator 13 uses the calculated pan motor correction amount, tilt motor correction amount, skid motor correction amount, and vertical slip motor correction amount as the pan head control amount. In addition, the correction amount calculation unit 13 sets the calculated correction amounts of the lens mechanism 30 such as image rotation, zoom, and focus as lens control amounts.
Then, the correction amount calculation unit 13 outputs the calculated head control amount information and the lens control amount information to the correction amount calculation request unit 126.

The correction amount calculation requesting unit 126 outputs the lens control amount information acquired from the correction amount calculating unit 13 to the lens control requesting unit 121, and uses the pan head control amount information acquired from the correction amount calculating unit 13 as a head control request. To the unit 122.
The lens control request unit 121 outputs a lens adjustment instruction for adjusting the lens mechanism 30 based on the lens control amount calculated by the correction amount calculation unit 13 to the lens control unit 14. The pan head control request unit 122 outputs to the pan head control unit 15 a pan head adjustment instruction for adjusting the pan head mechanism 40 based on the pan head control amount calculated by the correction amount calculation unit 13 (Step S1). ST407). At this time, the lens control request unit 121 outputs the lens control amount calculated by the correction amount calculation unit 13 to the lens control unit 14, and the head control request unit 122 calculates the head control amount calculated by the correction amount calculation unit 13. Is output to the pan head control unit 15.
The lens control unit 14 adjusts the lens mechanism 30 based on the lens control amount acquired from the lens control request unit 121. That is, the lens control unit 14 adjusts the lens position in the monitoring camera 100a. The pan head control unit 15 adjusts the pan head mechanism 40 based on the pan head control amount acquired from the pan head control request unit 122. That is, the pan head control unit 15 adjusts the pan head position in the monitoring camera 100 (step ST408).
Then, it returns to step ST402.

7A and 7B are diagrams showing an example of a hardware configuration of surveillance camera control apparatus 1 according to Embodiment 1 of the present invention.
In the first embodiment of the present invention, the functions of the installation angle acquisition unit 11, the control unit 12, the correction amount calculation unit 13, the lens control unit 14, and the pan head control unit 15 are realized by the processing circuit 701. The That is, the monitoring camera control device 1 includes a processing circuit 701 for controlling the lens mechanism 30 and the pan head mechanism 40 based on the acquired monitoring camera installation angle information.
Even if the processing circuit 701 is dedicated hardware as shown in FIG. 7A, the memory 705 as shown in FIG. 7B is used.
A CPU (Central Processing Unit) 706 that executes a program stored in the computer may be used.

  When the processing circuit 701 is dedicated hardware, the processing circuit 701 includes, for example, a single circuit, a composite circuit, a programmed processor, a parallel programmed processor, an ASIC (Application Specific Integrated Circuit), and an FPGA (Field-Programmable). Gate Array) or a combination thereof.

  When the processing circuit 701 is the CPU 706, the functions of the installation angle acquisition unit 11, the control unit 12, the correction amount calculation unit 13, the lens control unit 14, and the pan head control unit 15 are software, firmware, or software. This is realized by a combination of firmware and firmware. That is, the installation angle acquisition unit 11, the control unit 12, the correction amount calculation unit 13, the lens control unit 14, and the pan head control unit 15 are programs stored in an HDD (Hard Disk Drive) 702, a memory 705, and the like. Is realized by a processing circuit such as a CPU 706 that executes the processing, a system LSI (Large-Scale Integration), and the like. The programs stored in the HDD 702, the memory 705, and the like are stored in the computer according to the procedures and methods of the installation angle acquisition unit 11, the control unit 12, the correction amount calculation unit 13, the lens control unit 14, and the pan head control unit 15. It can be said that this is what is executed. Here, the memory 705 is, for example, a RAM (Random Access Memory), a ROM (Read Only Memory), a flash memory, an EPROM (Erasable Programmable Read Only Memory, etc.), an EEPROM (Electrically Erasable Memory). Or a volatile semiconductor memory, a magnetic disk, a flexible disk, an optical disk, a compact disk, a mini disk, a DVD (Digital Versatile Disc), or the like.

In addition, a part of the functions of the installation angle acquisition unit 11, the control unit 12, the correction amount calculation unit 13, the lens control unit 14, and the pan head control unit 15 is realized by dedicated hardware. May be realized by software or firmware. For example, the installation angle acquisition unit 11 is realized by a processing circuit 701 as dedicated hardware, and the control unit 12, the correction amount calculation unit 13, the lens control unit 14, and the pan head control unit 15 are realized. The function can be realized by the processing circuit reading and executing the program stored in the memory 705.
For example, the storage unit 16 uses an HDD 702. This is only an example, and the storage unit 16 may be configured by a DVD, a memory 305, or the like.
The surveillance camera control device 1 also includes an input interface device 703 and an output interface device 704 that communicate with external devices such as the external sensor 2, the lens mechanism 30, and the pan head mechanism 40.

  In the first embodiment, the lens control request unit 121 or the pan head control request unit 122 sets the correction amount calculated by the correction amount calculation unit 13 to the lens control unit 14 or the pan head control unit 15, respectively. An adjustment based on this was made (see step ST407 in FIG. 4). This is because it is assumed that the pan head mechanism 40 and the lens mechanism 30 can be moved relative to each other from the current position. For example, when the pan head mechanism 40 or the lens mechanism 30 can only move the absolute position, for example, only absolute position designation is supported as an interface, the current lens mechanism position information acquired by the lens control unit 14, Alternatively, the correction position is calculated by adding the correction amount calculated by the correction amount calculation unit 13 to the current pan head mechanism position information acquired by the pan head control unit 15, and the correction position is determined as the lens control unit 14 or The camera head control unit 15 may be notified and the lens control unit 14 or the camera head control unit 15 may be adjusted.

As described above, according to the first embodiment, the monitoring camera installation angle information is periodically acquired from the external sensor 2, the change in the installation angle of the monitoring camera 100 is automatically detected, and the lens mechanism 30 and the By adjusting the pan head mechanism 40, the adjustment of the shooting direction or the angle of view of the monitoring camera 100 is automated, and the imaging direction or the angle of view is automatically readjusted without the operator visiting the site. be able to. As a result, it is possible to always provide the optimal monitoring video to the operator.
In addition, since the operator does not need to adjust the shooting direction of the monitoring camera 100a or the angle of view by detecting the notification of the change in the installation angle, the operator overlooks the notification of the change in the installation angle. It is possible to prevent the monitoring camera 100a from being left with the installation angle changed.
In addition, since the adjustment of the shooting direction or angle of view of the monitoring camera 100 is automatically performed, maintenance work for the adjustment of the shooting direction or the angle of view at the installation site of the monitoring camera 100 is not required, and the monitoring system maintenance staff is in charge. The burden on the user can be reduced.

Embodiment 2. FIG.
In the first embodiment, the monitoring camera control apparatus 1 periodically monitors changes in the installation angle information of the monitoring camera 100, and the installation angle of the monitoring camera 100 needs to be adjusted in the shooting direction or the angle of view. When it was determined that there was a change in the height, the shooting direction or the angle of view was automatically adjusted.
In the second embodiment, the monitoring camera control device 1 determines that the installation angle information has changed, and adjusts the shooting direction or the angle of view when an instruction from the operator is given. An embodiment to be described will be described.

FIG. 8 is a configuration diagram of a monitoring system including the monitoring camera 100 equipped with the monitoring camera control device 1a according to Embodiment 2 of the present invention and the operator monitoring device 5.
Also in the second embodiment, as an example, it is assumed that the monitoring camera control device 1a is mounted on the monitoring camera 100. Also in the second embodiment, the surveillance camera 100 is assumed to be a turning surveillance camera equipped with a pan head (not shown) having the lens mechanism 30 and the pan head mechanism 40. In the second embodiment, the surveillance camera 100 including the pan head is also referred to as the surveillance camera 100.

As shown in FIG. 8, in the second embodiment, the monitoring camera 100 is connected to the operator monitoring device 5 via the network 7.
When the monitoring camera control device 1 detects a change in the installation angle of the monitoring camera 100, it notifies the operator monitoring device 5 of the change in the installation angle by transmitting the installation angle change information to the operator monitoring device 5. The operator monitoring device 5 outputs an alarm from, for example, a display unit (not shown) such as a display or a sound output unit (not shown) such as a sound output device.

The operator monitoring device 5 is a device that performs monitoring control of the monitoring camera 100 via a network, such as a PC (Personal Computer) equipped with a monitoring application or a monitoring recorder, and is installed from the monitoring camera control device 1a. A notification receiving unit (not shown) that receives change information, and correction of the shooting direction or angle of view of the monitoring camera 100, specifically, the lens position in the monitoring camera 100 and the pan head position in the monitoring camera 100 And an instruction transmission unit (not shown) that transmits an adjustment execution instruction for adjusting the image to the monitoring camera control device 1a.
Note that a command communicated between the monitoring camera 100 and the operator monitoring device 5 in the network 7 can be easily realized by the TCP / IP protocol.

FIG. 9 is a configuration diagram of a monitoring camera control device 1a according to Embodiment 2 of the present invention.
FIG. 10 is a configuration diagram of the control unit 12a included in the surveillance camera control device 1a according to Embodiment 2 of the present invention.
The surveillance camera control device 1a according to Embodiment 2 of the present invention further includes a notification unit 17 and an instruction acquisition unit 18 as compared to the surveillance camera control device 1 according to Embodiment 1 described with reference to FIG. The control unit 12a is different from the control unit 12 of the first embodiment described with reference to FIG. 3 only in that the control unit 12a further includes a network control request unit 128. Other configurations are the same as those of the first embodiment. Since it is the same as what was demonstrated, the same code | symbol is attached | subjected and the overlapping description is abbreviate | omitted.

The notification unit 17 transmits installation angle change information indicating that the installation angle of the monitoring camera 100 has changed to the operator monitoring apparatus 5 via the network 7 based on the control of the network control request unit 128.
The instruction acquisition unit 18 receives from the operator monitoring device 5 via the network 7 an adjustment execution instruction for executing correction of the shooting direction of the monitoring camera 100 or the angle of view. Upon receiving the adjustment execution instruction, the instruction acquisition unit 18 outputs the adjustment execution instruction to the network control request unit 128.

When the difference determination unit 125 determines that the difference between the reference position and the current position is greater than or equal to the threshold, the network control request unit 128, that is, the installation angle of the monitoring camera 100 at the reference position and the monitoring camera 100 at the current position. When it is determined that the difference from the installation angle is equal to or greater than the threshold value, the notification unit 17 transmits the installation angle change information to the operator monitoring device 5. In the second embodiment, when the difference determination unit 125 determines that the difference between the installation angle of the monitoring camera 100 at the reference position and the installation angle of the monitoring camera 100 at the current position is greater than or equal to the threshold, the reference position Information indicating that the difference between the installation angle of the monitoring camera 100 and the installation angle of the monitoring camera 100 at the current position is greater than or equal to the threshold is output to the network control request unit 128.
When the network control request unit 128 acquires the adjustment execution instruction from the instruction acquisition unit 18, the network control request unit 128 outputs a camera installation angle information re-acquisition instruction to the installation angle acquisition request unit 123.

FIG. 11 is a flowchart for explaining the operation of the monitoring camera control apparatus 1a according to the second embodiment of the present invention.
For example, at a preset time such as when the surveillance camera 100 is installed, the control unit 12a performs a reference position information registration process (step ST1101). The specific operation is the same as step ST401 of FIG. 4 described in the first embodiment, and thus detailed description thereof is omitted.
When the reference position information registration process is performed in step ST1101, the timing determination unit 127 of the control unit 12a determines whether or not the control timing for controlling the monitoring camera 100 has come (step ST1102).
If it is determined in step ST1102 that it is not the control timing (in the case of “NO” in step ST1102), the processing in step ST1102 is repeated and waits until the control timing is reached.

When it is determined in step ST1102 that the control timing has come (in the case of “YES” in step ST1102), the control unit 12a performs current position information registration processing (step ST1103). Since the specific operations of Step ST1102 to Step ST1103 are the same as Step ST402 to Step ST403 of FIG. 4 described in Embodiment 1, detailed description thereof is omitted.
The difference determination unit 125 refers to the storage unit 16 and determines whether the difference between the reference position and the current position is greater than or equal to a threshold based on the reference position information stored in the storage unit 16 and the latest current position information ( Step ST1104). The specific operation is the same as step ST404 of FIG. 4 described in the first embodiment, and thus detailed description thereof is omitted.
If it is determined in step ST1104 that the difference between the reference position and the current position is not greater than or equal to the threshold value (in the case of “NO” in step ST1104), the process returns to step ST1102.

If it is determined in step ST1104 that the difference between the reference position and the current position is greater than or equal to the threshold value (in the case of “YES” in step ST1104), the difference determination unit 125 determines the installation angle of the monitoring camera 100 and the current position at the reference position. The information that the difference from the installation angle of the monitoring camera 100 is equal to or greater than the threshold is output to the network control request unit 128.
Then, the network control request unit 128 outputs an instruction to the notification unit 17 to transmit the installation angle change information to the operator monitoring device 5. Receiving this, the notification part 17 transmits the installation angle change information to the effect that the installation angle of the monitoring camera 100 has changed to the operator monitoring apparatus 5 via the network 7 (step ST1105).
At this time, for example, the network control request unit 128 determines the difference between the installation angle of the monitoring camera 100 at the reference position and the installation angle of the monitoring camera 100 at the current position from the difference determination unit 125 to the notification unit 17 as a threshold value. Information on the time when the information indicating the above is acquired is transmitted together with the installation angle change information. Thereby, in the operator monitoring device 5, the operator can specify the time point when the installation angle of the monitoring camera 100 has changed.

In step ST1105, when the notification unit 17 of the monitoring camera control device 1 transmits the installation angle change information, the notification reception unit of the operator monitoring device 5 receives the transmitted installation angle change information and receives an alarm output control unit (illustrated). Output the installation angle change information.
When the installation angle change information is acquired, the alarm output control unit causes the display unit or the audio output unit to output information indicating that the installation angle of the monitoring camera 100 has changed as an alarm. Specifically, for example, the alarm output control unit causes the display unit to output a message such as “There is a monitoring camera installation angle change”. For example, the alarm output control unit may output an alarm sound from the audio output unit. Further, for example, the alarm output control unit may simultaneously output a message to the display unit and an alarm sound to the audio output unit.
The operator detects an alarm output from the display unit or the audio output unit, and determines whether to adjust the installation angle of the monitoring camera 100, that is, the imaging range of the monitoring camera 100 or the angle of view.
When it is determined that the imaging range or the angle of view of the monitoring camera 100 is to be adjusted, the operator performs correction of the shooting direction or angle of view of the monitoring camera 100 from an input unit (not shown) such as a keyboard. Enter instructions. When receiving an instruction from the operator, the instruction transmission unit sends an adjustment execution instruction for correcting the shooting direction or angle of view of the monitoring camera 100 via the network 7 to the instruction acquisition unit 18 of the monitoring camera control device 1a. Send to.

Returning to the flowchart of FIG.
In step ST1105, when the notification unit 17 transmits the installation angle change information, the instruction acquisition unit 18 performs the processing described above in the operator monitoring device 5, and receives the adjustment execution instruction transmitted from the instruction transmission unit. (In the case of “NO” in step ST1106).

When the adjustment execution instruction transmitted from the instruction transmission unit of operator monitoring device 5 is received (in the case of “YES” in step ST1106), instruction acquisition unit 18 outputs the received adjustment execution instruction to network control request unit 128.
When the network control request unit 128 acquires the adjustment execution instruction from the instruction acquisition unit 18, the network control request unit 128 outputs a camera installation angle information re-acquisition instruction to the installation angle acquisition request unit 123.
Then, the control unit 12a performs current position information registration processing (step ST1107). Since the specific operation is the same as that in step ST1103, detailed description is omitted. In step ST1107, the current, that is, the latest camera installation angle information is acquired.

The correction amount calculation request unit 126 outputs a correction amount calculation request to the correction amount calculation unit 13 (step ST1108). The specific operation is the same as step ST405 of FIG. 4 described in the first embodiment, and thus detailed description thereof is omitted.
The correction amount calculation unit 13 refers to the reference position information and the current position information stored in the storage unit 16, the lens control amount for returning the lens mechanism 30 from the current position to the reference position, and the pan head mechanism 40. Is calculated from the current position to the reference position (step ST1109). The specific operation is the same as step ST406 of FIG. 4 described in the first embodiment, and thus detailed description thereof is omitted.

  As described above, when the adjustment execution instruction is received from the operator monitoring device 5, the latest camera installation angle information is acquired by the control unit 12a, and the correction amount calculation unit 13 determines the lens control amount based on the latest camera installation angle information. And the pan head control amount is calculated. For example, even if the facility manager takes time to give an adjustment execution instruction, it corresponds to the current camera installation angle information. The imaging direction of the monitoring camera 100 or the angle of view can be adjusted by an appropriate lens control amount and pan head control amount.

  The lens control request unit 121 outputs a lens adjustment instruction for adjusting the lens mechanism 30 based on the lens control amount calculated by the correction amount calculation unit 13 to the lens control unit 14. The pan head control request unit 122 outputs to the pan head control unit 15 a pan head adjustment instruction for adjusting the pan head mechanism 40 based on the pan head control amount calculated by the correction amount calculation unit 13 (Step S1). ST1110). The specific operation is the same as step ST407 of FIG. 4 described in the first embodiment, and thus detailed description thereof is omitted.

The lens control unit 14 adjusts the lens mechanism 30 based on the lens control amount acquired from the lens control request unit 121. Further, the pan head control unit 15 adjusts the pan head mechanism 40 based on the pan head control amount acquired from the pan head control request unit 122 (step ST1111). The specific operation is the same as step ST408 in FIG. 4 described in the first embodiment, and thus detailed description thereof is omitted.
Then, it returns to step ST1101.

  Here, in step ST1106, the instruction acquisition unit 18 waits until it receives the adjustment execution instruction transmitted from the instruction transmission unit of the operator monitoring device 5, but this is not a limitation, and a certain period of time has elapsed. However, if the adjustment execution instruction is not received, the process may return to step ST1102 or the process may be terminated.

The hardware configuration of the surveillance camera control device 1a according to the second embodiment is the same as the configuration described with reference to FIGS. 7A and 7B in the first embodiment, and thus redundant description is omitted.
The functions of the notification unit 17 and the instruction acquisition unit 18 are the same as the functions of the installation angle acquisition unit 11, the control unit 12, the correction amount calculation unit 13, the lens control unit 14, and the pan head control unit 15 by the processing circuit 701. Realized.

  As described above, according to the second embodiment, the operator can automatically adjust the shooting direction or the angle of view of the monitoring camera 100 from a remote place without visiting the site. Further, for example, the operator monitoring device 5 displays the information on the time when the information indicating that the difference between the reference position and the current position is equal to or greater than the threshold value, or outputs the sound, so that the operator can monitor the camera. The time at which the installation angle of the monitoring camera 100 has changed can be identified, and the cause of the change in the installation angle of the monitoring camera 100 can be determined by, for example, playing back an image captured by the monitoring camera 100 during the specified time zone. Can be investigated.

Embodiment 3 FIG.
In the first and second embodiments, the surveillance camera 100 is assumed to be a turning camera including the lens mechanism 30 and the pan head mechanism 40, and the imaging range of the surveillance camera 100 by adjusting the lens mechanism 30 and the pan head mechanism 40, or The angle of view was adjusted.
In the third embodiment, when the surveillance camera 100 is an omnidirectional camera that does not include the lens mechanism 30 and the pan head mechanism 40, the imaging range or the angle of view of the surveillance camera 100 is adjusted. explain.

FIG. 12 is a block diagram of a surveillance camera 100a equipped with a surveillance camera control device 1b according to Embodiment 3 of the present invention.
Also in the third embodiment, as in the first and second embodiments, as an example, the surveillance camera control device 1b is mounted on the surveillance camera 100a. In the third embodiment, as described above, the surveillance camera 100a is assumed to be an omnidirectional camera.
The monitoring camera 100a according to the third embodiment of the present invention is different from the monitoring camera 100 described in the first embodiment with reference to FIG. 1 except that the lens mechanism 30 and the pan head mechanism 40 are provided, and the captured image is controlled by the monitoring camera. The difference is that an imaging unit 60 that outputs to the apparatus 1b is provided.

The imaging unit 60 images a monitoring area monitored by the monitoring camera 100a and outputs the captured image to the monitoring camera control device 1b. Although omitted in the first and second embodiments, the imaging unit 60 itself that captures the monitoring area monitored by the monitoring camera 100 is configured to include the monitoring camera 100 of the first and second embodiments.
The monitoring camera control device 1b acquires information about the installation angle of the monitoring camera 100 output from the external sensor 2, and when it is determined that the installation angle of the monitoring camera 100 has changed, the captured image output by the imaging unit 60 Control to adjust the cut-out position of.

  Here, as shown in FIG. 12, the surveillance camera control device 1b is assumed to be mounted on the surveillance camera 100a. However, the present invention is not limited to this, and the surveillance camera control device 1b is provided outside the surveillance camera 100a. It may be provided and control which adjusts the cutout position of the captured image in the surveillance camera 100a via communication networks, such as the internet, may be performed.

FIG. 13 is a block diagram of a surveillance camera control device 1b according to Embodiment 3 of the present invention.
The surveillance camera control device 1b according to the third embodiment of the present invention is different from the surveillance camera control device 1 described in the first embodiment with reference to FIG. Since the only difference is that the image cutout position adjusting unit 19 is provided, the same components as those in the surveillance camera control device 1 of the first embodiment are denoted by the same reference numerals, and redundant description is omitted.
When the image cutout position acquisition request is output from the image control request unit 129, the image cutout position adjustment unit 19 acquires information regarding the current cutout position of the captured image from the imaging unit 60, and performs image control as the image cutout position information. Output to the request unit 129. In addition, when the image cutout position adjustment instruction is output from the image control request unit 129, the image cutout position adjustment unit 19 outputs the captured image output by the imaging unit 60 based on the image cutout control amount acquired from the image control request unit 129. Adjust the image cutout position. In the third embodiment, the image cutout control amount is also referred to as a correction amount.
In the third embodiment, the correction amount calculation unit 13 refers to the reference position information and the current position information stored in the storage unit 16 to return the current position to the reference position. An image cut-out control amount for adjusting is calculated. The image control request unit 129 acquires the image cutout control amount calculated by the correction amount calculation unit 13 and outputs it to the image cutout position adjustment unit 19.
Details of the image control request unit 129 will be described later.

FIG. 14 is a configuration diagram of the control unit 12b included in the surveillance camera control device 1b according to Embodiment 3 of the present invention.
The surveillance camera control device 1b according to Embodiment 3 of the present invention includes a lens control request unit 121 and a pan head control request unit 122, as compared with the control unit 12 of Embodiment 1 described with reference to FIG. However, the only difference is that the image control requesting unit 129 is provided, and the other configurations are the same as those described in the first embodiment. Is omitted.
The image control request unit 129 outputs an image cut-out position acquisition request to the image cut-out position adjustment unit 19, and obtains information about the current cut-out position of the captured image of the image pickup unit 60 from the image cut-out position adjustment unit 19. Obtain as information. The image control request unit 129 also instructs the image cutout position adjustment unit 19 to adjust the image cutout position output by the imaging unit 60 based on the image cutout control amount calculated by the correction amount calculation unit 13. Is output.

FIG. 15 is a flowchart for explaining the operation of the monitoring camera control apparatus 1b according to the third embodiment of the present invention.
For example, at a preset time such as when the monitoring camera 100a is installed, the control unit 12b performs reference position information registration processing (step ST1501). Specifically, the control unit 12b receives a reference position information registration instruction from an administrator or the like when the surveillance camera 100a is installed, and performs the process of step ST1501 when the reference position information registration instruction is received. For example, the administrator or the like may issue a reference position information registration instruction by, for example, pressing an instruction button installed on the monitoring camera 100a. This is only an example, and the control unit 12b may receive the reference position information registration instruction by other methods.

Here, FIG. 16 is a flowchart illustrating in detail the operation of the reference position information registration process in step ST1501 of FIG.
The specific operations in step ST1601 and step ST1602 in FIG. 16 are the same as those in step ST501 and step ST502 in FIG. 5 described in the first embodiment, and thus redundant description is omitted.

The image control requesting unit 129 of the control unit 12b outputs an image cutout position acquisition request to the image cutout position adjusting unit 19 (step ST1603).
The image cutout position adjustment unit 19 acquires information related to the cutout position of the current captured image from the image pickup unit 60, and outputs the information as image cutout position information to the image control request unit 129 (step ST1604).
When acquiring the image cutout position information from the image cutout position adjusting unit 19, the image control requesting unit 129 outputs the image cutout position information to the position registration control unit 124 as the image cutout position information at the reference position.

  The position registration control unit 124 stores the camera installation angle information at the reference position, which is output from the installation angle acquisition request unit 123 in step ST1602 and associated with the acquisition date, as the reference position information in the storage unit 16 (step S1602). ST1605). Further, the position registration control unit 124 causes the storage unit 16 to store the image cut-out position information at the reference position output from the image control request unit 129 in step ST1604 in association with the reference position information.

Returning to the flowchart of FIG.
When the reference position information registration process is performed in step ST1501, the timing determination unit 127 of the control unit 12b determines whether or not the control timing for controlling the monitoring camera 100a has come (step ST1502).
If it is determined in step ST1502 that it is not the control timing (in the case of “NO” in step ST1502), the processing in step ST1502 is repeated and waits until the control timing comes.

  In step ST1502, when it is determined that the control timing has come (in the case of “YES” in step ST1502), the control unit 12b performs a current position information registration process (step ST1503).

Here, FIG. 17 is a flowchart illustrating in detail the operation of the current position information registration process in step ST1503 of FIG.
The specific operations in step ST1701 and step ST1702 in FIG. 17 are the same as those in step ST601 and step ST602 in FIG.
The image control request unit 129 of the control unit 12b outputs an image cutout position acquisition request to the image cutout position adjustment unit 19 (step ST1703).
The image cutout position adjustment unit 19 acquires information related to the cutout position of the current captured image from the image pickup unit 60, and outputs the information as image cutout position information to the image control request unit 129 (step ST1704).
When obtaining the image cutout position information from the image cutout position adjusting unit 19, the image control requesting unit 129 outputs the image cutout position information to the position registration control unit 124 as the image cutout position information at the current position.

  The position registration control unit 124 stores the camera installation angle information at the current position output from the installation angle acquisition request unit 123 in step ST1702 and associated with the acquisition date and time as current position information in the storage unit 16 (step S1702). ST1705). Further, the position registration control unit 124 causes the storage unit 16 to store the image cut-out position information at the current position output from the image control request unit 129 in step ST1704 in association with the current position information.

Returning to the flowchart of FIG.
The difference determination unit 125 refers to the storage unit 16 and determines whether the difference between the reference position and the current position is greater than or equal to a threshold based on the reference position information stored in the storage unit 16 and the latest current position information ( Step ST1504). The specific operation is the same as step ST404 of FIG. 4 described in the first embodiment, and thus detailed description thereof is omitted.
If it is determined in step ST1504 that the difference between the reference position and the current position is not greater than or equal to the threshold value (in the case of “NO” in step ST1504), the process returns to step ST1502.

If it is determined in step ST1504 that the difference between the reference position and the current position is greater than or equal to the threshold (in the case of “YES” in step ST1504), the difference determination unit 125 determines the monitoring camera installation angle and the current position at the reference position. The information indicating that the difference from the installation angle of the monitoring camera is equal to or greater than a threshold value is output to the correction amount calculation requesting unit 126.
Then, the correction amount calculation request unit 126 outputs a correction amount calculation request to the correction amount calculation unit 13 (step ST1505).
The correction amount calculation unit 13 refers to the reference position information and the current position information stored in the storage unit 16, and calculates an image cutout control amount for returning the current position of the monitoring camera 100a to the reference position (step) ST1506).

Here, an example of a method of calculating the image cutout control amount by the correction amount calculation unit 13 will be described.
FIG. 18 illustrates an image cut-out position for returning the monitoring camera 100a to the reference position by the correction amount calculation unit 13 when the monitoring camera 100a, which is an omnidirectional camera, rotates with the center position fixed in the third embodiment. It is a figure explaining an example of calculation operation.
In FIG. 18, 18-A indicates a reference position of the monitoring camera 100a. Reference numeral 18-B denotes the current position of the monitoring camera 100a, and shows a case where the camera is rotated by (Δθx, Δθy, Δθz) [rad] around the X, Y, and Z axes from the reference position 18-A. Yes.
In FIG. 18, 18-C indicates the maximum angle of view of the monitoring camera 100a, which is (vertical width, horizontal width = H, W). 18-D is the current position of 18-B, which is the center position (0, 0) and the angle of view (vertical width, horizontal width = h, w). Reference numeral 18-E denotes a video cutout position for returning the current position to the reference position. At the center position (x ₁ , y ₁ ), the rotation angle θ ₁ , and the angle of view (vertical width, horizontal width) = (h, w) is there. Further, the following formula (1) is a formula for obtaining the center position (x ₁ , y ₁ ) and the rotation angle θ ₁ for returning the current position to the reference position.

FIG. 19 shows that when the surveillance camera 100a, which is an omnidirectional camera, is translated around the X, Y, and Z axes in the third embodiment, the surveillance camera 100a is returned to the reference position by the correction amount calculation unit 13. It is a figure explaining an example of the calculation operation of the image cut-out position for this.
In FIG. 19, 19-A indicates the reference position of the monitoring camera 100a. Reference numeral 19-B denotes the current position of the monitoring camera 100a, which is translated from the reference position 19-A by (ΔX, ΔY, ΔZ) [mm] around the X, Y, and Z axes. . 19-C indicates the maximum angle of view of the monitoring camera 100a, and (vertical width, horizontal width) = (H, W). 19-D is the current position of 19-B, which is the center position (0, 0) and the angle of view (vertical width, horizontal width = h, w). 19-E is a video cutout position for returning the current position to the reference position, the center position (x ₂ , y ₂ ), the magnification φ ₁ , and the angle of view (vertical width, horizontal width) = (φ ₁ · h, φ ₁ · w). Further, the following expression (2) is an expression for obtaining the center position (x ₂ , y ₂ ) and the magnification φ1 for returning the current position to the reference position. In addition, F in Formula (2) is the focal distance of the reference position which the monitoring camera 100a has.

  By combining the method described with reference to FIG. 18 and the method described with reference to FIG. 19, even when the current position is rotated and translated, the monitoring camera 100a can be returned to the reference position.

The external sensor 2 is the same as that described in the first embodiment.
When the external sensor 2 is an electronic compass, the installation angle acquisition unit 11 acquires the angle of the monitoring camera 100 with respect to the two axes (X, Y), and the control unit 12b uses the change angle information with respect to the two axes as a reference. The information is stored in the storage unit 16 as position information and current position information.

The correction amount calculation unit 13 can acquire the change angle (Δθx, Δθy) [rad] from the reference position information and the current position information stored in the storage unit 16 without performing a conversion process or the like.
When the external sensor 2 is a sensor that outputs angular velocity information such as a gyro sensor, the installation angle acquisition unit 11 uses the three axes (X, Y, Z) as axes, and the angular velocity [rad / sec] and the control unit 12b stores the angular velocities for the three axes in the storage unit 16 as reference position information and current position information.
The correction amount calculation unit 13 can obtain the change angle (Δθx, Δθy, Δθz) [rad] of the current position from the reference position by integrating and adding the current position information stored in the storage unit 16.

If an acceleration sensor is used as the external sensor 2, the installation angle acquisition unit 11 acquires the acceleration [m / sec ² ] of the surveillance camera 100 with respect to the three axes (X, Y, Z) as axes. The control unit 12b stores the acceleration with respect to the three axes in the storage unit 16 as the reference position information and the current position information.
The correction amount calculation unit 13 can calculate the change movement amount (ΔX, ΔY, ΔZ) [mm] of the current position from the reference position by performing double integral addition on the current position information stored in the storage unit 16.

Then, the correction amount calculation unit 13 outputs the calculated image cutout position information as an image cutout control amount to the correction amount calculation request unit 126.
The correction amount calculation request unit 126 outputs information on the image cutout control amount acquired from the correction amount calculation unit 13 to the image control request unit 129.
The image control request unit 129 instructs the image cutout position adjustment unit 19 to adjust the cutout image for the captured image of the imaging unit 60 based on the image cutout control amount calculated by the correction amount calculation unit 13. Is output (step ST1507).
The image cutout position adjustment unit 19 adjusts the image cutout position of the captured image output by the imaging unit 60 based on the image cutout control amount acquired from the image control request unit 129 (step ST1508).
Then, it returns to step ST1502.

The hardware configuration of the surveillance camera control device 1b according to the third embodiment is the same as the configuration described with reference to FIGS. 7A and 7B in the first embodiment, and thus a duplicate description is omitted.
The function of the image cutout position adjustment unit 19 is realized by the processing circuit 701.

As described above, according to the third embodiment, even when the monitoring camera 100a is an omnidirectional camera that does not have the lens mechanism 30 and the pan head mechanism 40, the shooting direction or the angle of view of the monitoring camera 100a. Thus, the adjustment of the imaging direction or the angle of view can be automatically performed without the operator having to visit the site. As a result, it is possible to always provide the optimal monitoring video to the operator.
In addition, since the operator does not need to adjust the shooting direction of the monitoring camera 100a or the angle of view by detecting the notification of the change in the installation angle, the operator overlooks the notification of the change in the installation angle. It is possible to prevent the monitoring camera 100a from being left with the installation angle changed.
In addition, since the adjustment of the shooting direction or angle of view of the monitoring camera 100a is automatically performed, maintenance work for adjusting the shooting direction or the angle of view at the installation site of the monitoring camera 100a is not required, and the monitoring system maintenance staff is in charge. The burden on the user can be reduced.

Embodiment 4 FIG.
In the second embodiment, the monitoring camera 100 on which the monitoring camera control device 1a is mounted is a turning camera, the monitoring camera 100 and the operator monitoring device 5 are connected via the network 7 (see FIG. 8), and monitoring camera control is performed. When the apparatus 1a detects a change in the installation angle of the monitoring camera 100, the apparatus 1a transmits the installation angle change information to the operator monitoring apparatus 5 via the network 7, thereby notifying that the installation angle has changed, and monitoring the operator. Although the lens mechanism 30 and the pan head mechanism 40 are adjusted based on the adjustment execution instruction transmitted from the device 5, the omnidirectional camera equipped with the surveillance camera control device 1b as described in the third embodiment. The monitoring camera 100a can be applied to the second embodiment.
That is, when the monitoring camera control device 1b detects a change in the installation angle of the monitoring camera 100a, the monitoring camera control device 1b transmits the installation angle change information to the operator monitoring device 5, and the adjustment execution transmitted from the operator monitoring device 5 is performed. Based on the instruction, the correction amount calculation unit 13 calculates a correction amount for returning the monitoring camera 100a from the current position to the reference position, and based on the image cutout control amount calculated by the correction amount calculation unit 13, the image cutout position adjustment unit. 19 adjusts the cutout position of the captured image captured by the imaging unit 60 of the monitoring camera 100a, so that the shooting direction or the angle of view of the monitoring camera 100a can be automatically adjusted.
When the instruction acquisition unit receives the adjustment execution instruction, the correction amount calculation unit 13 re-acquires the current, that is, the latest installation angle of the monitoring camera 100a as the installation angle of the monitoring camera 100a at the current position. Based on the installation angle of the monitoring camera 100a at the reference position and the installation angle of the monitoring camera 100a at the re-acquired current position, the image cutout control amount is calculated.
Since the configuration and specific operation of the monitoring camera control device 1b have been described in the third embodiment, detailed description thereof will be omitted.

  As described above, according to the fourth embodiment, even when the monitoring camera 100a is an omnidirectional camera that does not include the lens mechanism 30 and the pan head mechanism 40, the operator can travel from a remote place without visiting the site. It is possible to automatically adjust the shooting direction or angle of view of the monitoring camera 100a. Further, for example, the operator monitoring device 5 displays the information on the time when the information indicating that the difference between the reference position and the current position is equal to or greater than the threshold value, or outputs the sound, so that the operator can monitor the camera. The time at which the installation angle of the monitoring camera 100a has changed can be identified, and the cause of the change in the installation angle of the monitoring camera 100a can be determined by playing back images captured by the monitoring camera 100a during the specified time zone. Can be investigated.

Embodiment 5. FIG.
In the first and second embodiments, the surveillance camera 100 is assumed to be a turning camera including the lens mechanism 30 and the pan head mechanism 40, and based on the installation angle information of the surveillance camera 100 acquired from the external sensor 2, The imaging range or angle of view of the monitoring camera 100 is adjusted by adjusting the pan head mechanism 40.
In the third and fourth embodiments, the monitoring camera 100a is assumed to be an omnidirectional camera that does not include the lens mechanism 30 and the pan head mechanism 40, includes the image cutout position adjustment unit 19, and is acquired from the external sensor 2. Based on the information on the installation angle of 100a, the imaging range or angle of view of the monitoring camera 100a is adjusted by adjusting the image clipping position of the captured image output from the imaging unit 60 by the image clipping position adjustment unit 19. I was doing.
In the fifth embodiment, when the monitoring camera 100b is a fixed monitoring camera that does not have an accompanying function such as the external sensor 2, the lens mechanism 30, the pan head mechanism 40, and the image cutout position adjusting unit 19, the monitoring camera 100b. An embodiment for correcting the angle of view of a captured image taken by the camera will be described.

FIG. 20 is a configuration diagram of a monitoring camera 100b equipped with a monitoring camera control device 1c according to Embodiment 5 of the present invention.
As shown in FIG. 20, the configuration of the monitoring camera 100a described in the third embodiment is different only in that the monitoring camera 100b is not connected to the external sensor 2.
FIG. 21 is a block diagram of a surveillance camera control device 1c according to Embodiment 5 of the present invention.
FIG. 22 is a configuration diagram of the control unit 12c included in the monitoring camera control device 1c according to the fifth embodiment of the present invention.

The surveillance camera control device 1c according to Embodiment 5 of the present invention includes an installation angle acquisition unit 11 and an image cutout position adjustment unit 19 which are the same as the surveillance camera control device 1b described in Embodiment 3 with reference to FIG. However, the image correction unit 20 is different.
The image correction unit 20 receives an image correction instruction from the image correction control unit 131 of the control unit 12c, and corrects the angle of view of the captured image output by the imaging unit 60. In the fifth embodiment, the correction of the angle of view of the captured image performed by the image correction unit 20 means that the image data of the captured image is rotated, enlarged, or distorted.

Moreover, the control part 12c of the surveillance camera control apparatus 1c which concerns on Embodiment 5 of this invention is compared with the control part 12b of Embodiment 3 demonstrated using FIG. The difference is that the registration control unit 124 and the image control request unit 129 are not provided, but the image registration control unit 130 and the image correction control unit 131 are provided.
The image registration control unit 130 acquires a captured image from the imaging unit 60 and stores it in the storage unit 16.
The image correction control unit 131 outputs an image correction instruction for rotating, enlarging, and correcting distortion of the image data of the captured image output by the imaging unit 60 to the image correction unit 20.
In the fifth embodiment, the correction amount calculation unit 13 returns the angle of view of the captured image captured by the monitoring camera 100b at the current position to the angle of view of the captured image captured by the monitoring camera 100b at the reference position. An image correction amount is calculated. The image correction control unit 131 causes the image correction unit 20 to rotate, enlarge, and distort the image data of the captured image output from the imaging unit 60 based on the image correction amount calculated by the correction amount calculation unit 13. Outputs correction instructions.

FIG. 23 is a flowchart for explaining the operation of the monitoring camera control apparatus 1c according to the fifth embodiment of the present invention.
For example, at a preset time such as when the monitoring camera 100b is installed, the control unit 12c performs a reference image registration process (step ST2301). Specifically, the control unit 12c receives a reference image registration instruction from an administrator or the like when the monitoring camera 100b is installed, and performs the process of step ST2301 when the reference image registration instruction is received. For example, the administrator or the like may issue a reference image registration instruction by, for example, pressing an instruction button installed on the monitoring camera 100b. This is only an example, and the control unit 12c may receive the reference image registration instruction by other methods. In the fifth embodiment, the reference image means that the desired monitoring area can be appropriately imaged at the reference position, that is, at a position where the desired monitoring area can be appropriately imaged. An image picked up with a wide angle of view shall be said.
In step ST2301, the image registration control unit 130 of the control unit 12c acquires a captured image from the imaging unit 60, and acquires the acquired captured image as a captured image captured by the monitoring camera 100b at the reference position, that is, a reference image. The date and time are linked and stored in the storage unit 16.

The timing determination unit 127 determines whether or not the control timing for controlling the monitoring camera 100b has come (step ST2302).
When it is determined in step ST2302 that it is not the control timing (in the case of “NO” in step ST2302), the processing in step ST2302 is repeated and waits until the control timing is reached.

  If it is determined in step ST2302 that the control timing has come (if “YES” in step ST2302), the control unit 12c performs current image registration processing (step ST2303). Specifically, the image registration control unit 130 acquires a captured image from the imaging unit 60, and uses the acquired captured image as a captured image captured by the monitoring camera 100b at the current position, that is, as a current image. In addition, it is stored in the storage unit 16.

The difference determination unit 125 refers to the storage unit 16 and determines whether the difference between the angle of view of the reference image and the angle of view of the current image is greater than or equal to a threshold based on the reference image stored in the storage unit 16 and the latest current image. Is determined (step ST2304). The difference determination unit 125 may perform comparison between the angle of view of the reference image and the angle of view of the current image by existing image processing. For example, when the surveillance camera 100b is installed, a fixed object existing in the range of the captured image, such as a utility pole, is registered in advance, and the difference determination unit 125 determines the position of the fixed object on the reference image and the current position. What is necessary is just to determine whether there exists a difference more than a threshold value by comparing with the position of the said fixed object on an image. The threshold value can be set as appropriate.
If it is determined in step ST2304 that the difference between the angle of view of the reference image and the angle of view of the current image is not greater than or equal to the threshold value (in the case of “NO” in step ST2304), the process returns to step ST2302.

If it is determined in step ST2304 that the difference between the angle of view of the reference image and the angle of view of the current image is greater than or equal to the threshold (in the case of “YES” in step ST2304), the difference determination unit 125 determines the angle of view of the reference image Information indicating that the difference from the angle of view of the current image is equal to or greater than the threshold value is output to the correction amount calculation requesting unit 126.
Then, the correction amount calculation request unit 126 outputs a correction amount calculation request to the correction amount calculation unit 13 (step ST2305).

The correction amount calculation unit 13 refers to the reference image and the current image stored in the storage unit 16, and calculates an image correction amount for returning the angle of view of the current image to the angle of view of the reference image (step ST2306). ). That is, the correction amount calculation unit 13 calculates a correction amount for returning the angle of view of the captured image captured by the monitoring camera 100b at the current position to the angle of view of the captured image captured by the monitoring camera 100b at the reference position.
The correction amount calculation unit 13 calculates, for example, the difference between the fixed object on the reference image and the fixed object on the current image, that is, how far the fixed object on the reference image is apart from the fixed object on the current image. Then, the calculated difference may be used as the image correction amount. In the fifth embodiment, the image correction amount is also simply referred to as a correction amount.
The correction amount calculation unit 13 outputs the calculated image correction amount to the correction amount calculation request unit 126.
The correction amount calculation request unit 126 outputs information on the image correction amount acquired from the correction amount calculation unit 13 to the image correction control unit 131.
The image correction control unit 131 causes the image correction unit 20 to correct the angle of view of the captured image output from the imaging unit 60 based on the image correction amount calculated by the correction amount calculation unit 13. An image correction instruction for rotating, enlarging, and correcting the image data of the captured image to be output is output (step ST2307).
The image correction unit 20 corrects the angle of view of the captured image output by the imaging unit 60 based on the image correction amount acquired from the image correction control unit 131. That is, the image correction unit 20 performs image correction on the captured image output by the imaging unit 60 (step ST2308).
Then, it returns to step ST2302.

The hardware configuration of the surveillance camera control device 1c according to the fifth embodiment is the same as the configuration described with reference to FIGS. 7A and 7B in the first embodiment, and thus a duplicate description is omitted.
The function of the image correction unit 20 is realized by the processing circuit 701.

  As described above, according to the fifth embodiment, the monitoring camera 100b is a fixed monitoring camera that is not connected to the external sensor 2 and does not have the lens mechanism 30, the pan head mechanism 40, and the image cutout position adjustment unit 19. Also in this case, the adjustment of the shooting direction or the angle of view of the monitoring camera 100a is automated, and the subject imaged by the imaging unit 60 can be returned to the original subject without the operator visiting the site. As a result, it is possible to always provide the optimal monitoring video to the operator.

Embodiment 6 FIG.
In the second embodiment, the monitoring camera 100 on which the monitoring camera control device 1a is mounted is a turning camera, the monitoring camera 100 and the operator monitoring device 5 are connected via the network 7 (see FIG. 8), and monitoring camera control is performed. When the apparatus 1a detects a change in the installation angle of the monitoring camera 100, the apparatus 1a transmits the installation angle change information to the operator monitoring apparatus 5 via the network 7, thereby notifying that the installation angle has changed, and monitoring the operator. Although the lens mechanism 30 and the pan head mechanism 40 are adjusted based on the adjustment execution instruction transmitted from the apparatus 5, the fixed monitoring camera equipped with the monitoring camera control apparatus 1c as described in the fifth embodiment is used. The surveillance camera 100b can be applied to the second embodiment.
That is, when the monitoring camera control device 1c detects a change in the angle of view of the captured image of the monitoring camera 100b, the monitoring camera control device 1c notifies the operator monitoring device 5 that the angle of view of the captured image has changed. Based on the adjustment execution instruction transmitted as information and transmitted from the operator monitoring device 5, the correction amount calculation unit 13 captures the angle of view of the captured image captured by the monitoring camera 100b at the current position, and the monitoring camera 100b captures the image at the reference position. An image correction amount for returning to the angle of view of the captured image is calculated, and the image correction unit 20 corrects the angle of view of the captured image captured by the monitoring camera 100b based on the image correction amount calculated by the correction amount calculation unit 13. Thus, the angle of view of the captured image captured by the monitoring camera 100b can be returned to the angle of view of the reference image.
When the instruction acquisition unit receives the adjustment execution instruction, the correction amount calculation unit 13 captures the current captured image captured by the monitoring camera 100b at the current position, that is, the latest captured image captured by the monitoring camera 100b. An image correction amount is calculated based on the captured image re-acquired as an image and captured by the monitoring camera 100b at the reference position and the re-acquired captured image.
Since the configuration and specific operation of the monitoring camera control device 1c have been described in the fifth embodiment, detailed description thereof will be omitted.

  As described above, according to the sixth embodiment, the monitoring camera 100b is a fixed monitoring camera that is not connected to the external sensor 2 and does not include the lens mechanism 30, the pan head mechanism 40, and the image cutout position adjustment unit 19. Even in this case, the operator can automatically adjust the captured image of the monitoring camera 100b from a remote place without going to the site. In addition, for example, the operator monitoring device 5 displays the information on the time when the information indicating that the difference between the reference image and the current image is equal to or greater than the threshold is displayed, or outputs the sound, so that the operator can monitor the camera. The time at which the installation angle of 100b has changed can be identified, and the cause of the change in the installation angle of the monitoring camera 100b can be determined by playing back images captured by the monitoring camera 100b in the time zone of the identified time. Can be investigated.

In the first embodiment, the monitoring camera control device 1 is configured as shown in FIG. 2, but the monitoring camera control device 1 includes a control unit 12, a correction amount calculation unit 13, and a lens control unit 14. By providing the pan head control unit 15, the above-described effects can be obtained.
In the third embodiment, the monitoring camera control device 1b is configured as shown in FIG. 13, but the monitoring camera control device 1b includes a control unit 12b, a correction amount calculation unit 13, and an image clipping position adjustment unit. By providing 19, the effects as described above can be obtained.
In the fifth embodiment, the monitoring camera control device 1c is configured as shown in FIG. 21. However, the monitoring camera control device 1c includes a control unit 12c, a correction amount calculation unit 13, an image correction unit 20, and the like. By providing the above, the effects as described above can be obtained.

  Further, within the scope of the present invention, the invention of the present application can be freely combined with each embodiment, modified with any component in each embodiment, or omitted with any component in each embodiment. .

  1, 1a, 1b, 1c Monitoring camera control device, 2 External sensor, 5 Operator monitoring device, 11 Installation angle acquisition unit, 12, 12a, 12b, 12c Control unit 13 Correction amount calculation unit, 14 Lens control unit, 15 Head Control unit, 16 storage unit, 17 notification unit, 18 instruction acquisition unit, 19 image cutout position adjustment unit, 20 image correction unit, 30 lens mechanism, 40 pan head mechanism, 60 imaging unit, 100, 100a, 100b surveillance camera, 121 Lens control request unit, 122 pan head control request unit, 123 installation angle acquisition request unit, 124 position registration control unit, 125 difference determination unit, 126 correction amount calculation request unit, 127 timing determination unit, 128 network control request unit, 129 image Control request unit, 130 image registration control unit, 131 image correction control unit, 701 processing circuit, 702 H D, 703 input interface device, 704 output interface device.

Claims (14)

A controller that determines whether a difference between an installation angle of the monitoring camera at the reference position and an installation angle of the monitoring camera at the current position is equal to or greater than a threshold;
When the control unit determines that the difference between the installation angle of the monitoring camera at the reference position and the installation angle of the monitoring camera at the current position is greater than or equal to a threshold, the monitoring camera is moved from the current position to the A correction amount calculation unit for calculating a correction amount for returning to the reference position;
A lens control unit that adjusts a lens position in the monitoring camera based on the correction amount calculated by the correction amount calculation unit;
A monitoring camera control device comprising: a pan head control unit that adjusts a pan head position in the monitoring camera based on the correction amount calculated by the correction amount calculation unit. When the control unit determines that the difference between the installation angle of the monitoring camera at the reference position and the installation angle of the monitoring camera at the current position is greater than or equal to a threshold value, the lens position and the monitoring at the monitoring camera An instruction acquisition unit for receiving an adjustment execution instruction for adjusting the camera platform position in the camera;
The monitoring camera control device according to claim 1, wherein the correction amount calculation unit calculates the correction amount when the instruction acquisition unit receives the adjustment execution instruction. The correction amount calculation unit, when the instruction acquisition unit receives the adjustment execution instruction, re-acquires the current installation angle of the monitoring camera as the installation angle of the monitoring camera at the current position, and at the reference position The monitoring camera control device according to claim 2, wherein the correction amount is calculated based on an installation angle of the monitoring camera and an installation angle of the monitoring camera at the re-acquired current position. The lens control unit
4. The surveillance camera control device according to claim 1, wherein one of zooming, focusing, and image rotation of a lens of the surveillance camera is adjusted. 5. The pan head control unit
The operation of any one of a pan direction, a tilt direction, a roll, a skid direction, and a longitudinal slip direction on the pan head of the monitoring camera is adjusted. Surveillance camera control device. The surveillance camera control device according to claim 1, wherein the surveillance camera is a turning camera. A controller that determines whether a difference between an installation angle of the monitoring camera at the reference position and an installation angle of the monitoring camera at the current position is equal to or greater than a threshold;
When the control unit determines that the difference between the installation angle of the monitoring camera at the reference position and the installation angle of the monitoring camera at the current position is greater than or equal to a threshold, the monitoring camera is moved from the current position to the A correction amount calculation unit for calculating a correction amount for returning to the reference position;
A monitoring camera control device comprising: an image cutout position adjustment unit that adjusts a cutout position of a captured image captured by the monitoring camera based on the correction amount calculated by the correction amount calculation unit. When the control unit determines that the difference between the installation angle of the monitoring camera at the reference position and the installation angle of the monitoring camera at the current position is greater than or equal to a threshold, the control unit adjusts the cut-out position of the captured image An instruction acquisition unit for receiving an adjustment execution instruction;
The monitoring camera control device according to claim 7, wherein the correction amount calculation unit calculates the correction amount when the instruction acquisition unit receives the adjustment execution instruction. The correction amount calculation unit, when the instruction acquisition unit receives the adjustment execution instruction, re-acquires the current installation angle of the monitoring camera as the installation angle of the monitoring camera at the current position, and at the reference position The monitoring camera control device according to claim 8, wherein the correction amount is calculated based on an installation angle of the monitoring camera and an installation angle of the monitoring camera at the re-acquired current position. The surveillance camera control device according to any one of claims 7 to 9, wherein the surveillance camera is an omnidirectional surveillance camera. A control unit that determines whether or not a difference between an angle of view of the captured image captured by the monitoring camera at the reference position and an angle of view of the captured image captured by the monitoring camera at the current position is greater than or equal to a threshold;
When the control unit determines that the difference between the angle of view of the captured image captured by the monitoring camera at the reference position and the angle of view of the captured image captured by the monitoring camera at the current position is greater than or equal to a threshold value. A correction amount calculation unit that calculates a correction amount for returning the angle of view of the captured image captured by the monitoring camera at the current position to the angle of view of the captured image captured by the monitoring camera at the reference position;
A monitoring camera control device comprising: an image correction unit that corrects an angle of view of a captured image captured by the monitoring camera based on a correction amount calculated by the correction amount calculation unit. When the control unit determines that the difference between the angle of view of the captured image captured by the monitoring camera at the reference position and the angle of view of the captured image captured by the monitoring camera at the current position is greater than or equal to a threshold value. An instruction acquisition unit that receives an adjustment execution instruction for adjusting the angle of view of the captured image captured by the monitoring camera;
The monitoring camera control device according to claim 11, wherein the correction amount calculation unit calculates the correction amount when the instruction acquisition unit receives the adjustment execution instruction. When the instruction acquisition unit receives the adjustment execution instruction, the correction amount calculation unit re-acquires a captured image captured by the monitoring camera as a captured image captured by the monitoring camera at the current position, and 13. The monitoring according to claim 12, wherein the correction amount is calculated based on a captured image captured by the monitoring camera at a reference position and a captured image captured by the monitoring camera at the re-acquired current position. Camera control device. The surveillance camera control device according to any one of claims 11 to 13, wherein the surveillance camera is a fixed surveillance camera.

Images