JP2006311309A - Monitoring camera device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a monitoring camera device for maintaining and enhancing a security effect by controlling the movement of a camera at random so that a photographing direction of the camera and camera movement between targets in a monitoring area can not be predicted. <P>SOLUTION: The monitoring camera device is provided with: the camera 12a that turns toward a plurality of objects, changes directions and performs photographing; a random condition generating means 1 for generating a turning condition including a photographing sequence of the plurality of targets preset in advance for photographing; and a turning control means 11 for turning the camera according to the turning condition generated at random by the random condition generating means to cause the camera to perform photographing. The turning condition for turning the camera at random includes the targets photographing sequence, holding time when the camera gets still in a target direction and false targets. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a surveillance camera device that performs surveillance over a wide area for security and crisis management, and in particular, in photographing one after another of targets scattered in a wide area, the order of photography, the movement path of the camera ( The present invention relates to a technique for increasing the monitoring ability by randomizing shooting conditions (including moving routes).

  2. Description of the Related Art Conventionally, a monitoring camera (photographing means) is, for example, installed on a column with a rotation mechanism that can rotate around a rotation axis, and is designated as a specified shooting position or shooting direction (hereinafter collectively referred to as a generic name). To “shooting direction”) and take a picture. The rotation mechanism includes a pan mechanism that rotates the shooting direction in the horizontal direction and a tilt mechanism that rotates the shooting direction in the vertical direction, and these mechanisms can be controlled simultaneously. When a desired shooting direction to be photographed next is input, a pan rotation amount and a tilt rotation amount are calculated from the current camera direction (pan direction and tilt direction) and the desired shooting direction (pan direction and tilt direction). Is calculated to control the rotation mechanism (Patent Document 1).

  In general, if there are a plurality of target shooting directions and the target is shot one after another in a fixed order, the plurality of target pan directions and tilt directions are preset in the memory in the shooting order in advance. A pan rotation amount, a tilt rotation amount, and a rotation speed thereof are calculated and controlled for each target. Alternatively, the pan rotation amount, the tilt rotation amount and the rotation speed thereof when rotating between the targets corresponding to the targets are calculated and preset in advance, and the rotation mechanism determines each target based on the preset value. The camera is rotated to draw a trajectory between them.

  Japanese Patent Application Laid-Open No. 2004-151561 discloses a technique for calculating a pan rotation amount and a tilt rotation amount by which a camera rotates on the shortest path when calculating a pan rotation amount and a tilt rotation amount.

JP 2001-69496 A

  In the above prior art, the camera shooting (rotation) control is often such that the camera target is always constant, the order of shooting the target is constant, or the path through which the camera rotates between the targets is minimized. It was. In other words, the shooting (turning) pattern of the camera tends to be constant.

  Therefore, an intruder may read the camera's shooting (turning) pattern, which may reduce the original monitoring ability. In particular, when the premises to be monitored are wide and the number of cameras is small, there is a greater security risk.

  In order to eliminate such danger, for example, a plurality of memories storing preset values with different conditions for rotating the camera between the targets as described above are prepared, for example, replaced every other day, or presets. Measures such as changing the value are not impossible. However, if the movement of the camera is recognized as the same pattern in the time zone required for the intruder to enter, it is not very effective.

  SUMMARY OF THE INVENTION An object of the present invention is to provide a surveillance camera device capable of maintaining and enhancing the security effect by randomly controlling the movement of the camera in the surveillance area so as not to predict the shooting direction (position) of the camera and the movement of the camera between targets. The purpose is to provide.

  In order to achieve the above object, in the present invention, the shooting order of a plurality of targets, the dwell time when the camera is stationary at the position when the target is reached, the path for moving between the targets, the setting of the pseudo target, or the rotation One of the speeds or a combination thereof is controlled at random.

  Here, the main meaning or usage of main terms used will be described. The expression “target” includes information on either the position with respect to the camera to be imaged or the direction viewed from the camera. A position relative to the camera to be imaged (sometimes referred to as a “target position”) is a three-dimensional position having the ground as an XY plane and the height as the Z axis. The direction seen from the camera (sometimes referred to as “direction” or “target direction”) is represented by a pan direction and a tilt direction. “Rotation” means camera pan rotation, tilt rotation, or any combination of these and movement of the camera position, or a combination thereof. The “rotation condition” includes at least information necessary for controlling pan rotation and tilt rotation, which is an element of purpose, order, method, and control. The rotation conditions include, for example, a target, a shooting order of a plurality of targets, a dwell time in which the camera is stationary at the position when the target is reached, a path (rotation trajectory) that moves between targets, and a pseudo target (The route to the pseudo target is a detour locus), or speed. However, the target is not a randomly generated target. In other words, the “pseudo target” is an object for which photographing is not obligated (may be photographed), and its existence itself is random. Pseudo goals do not mean that they do not include the same as goals. A target when used as a pseudo target is randomly generated and is not necessarily photographed, but is always photographed when used as a target. The “target” of the pseudo target includes the same meaning as the above target. “One round (or round)” is a round (one round) in which all of the targets are rotated and set once to shoot and shoot (one set may have multiple shooting operations). In some cases, a pseudo target is included between the targets.

  In order to solve the above-described problem, the invention according to claim 1 is directed to a camera that rotates toward a plurality of targets to change a direction and performs shooting, and shooting of the plurality of targets that are preset in advance. Random condition generating means for randomly generating the rotation conditions including the order, and rotation control for rotating and shooting the camera according to the rotation conditions randomly generated by the random condition generating means. Means.

  According to a second aspect of the present invention, in the first aspect of the invention, the random condition generating means controls the rotation of the camera to the next target after the control means is controlling the camera to the previous target or after the control. Before starting, the next target and its rotation condition are randomly generated.

  According to a third aspect of the present invention, in the second aspect of the present invention, the next target does not include the previous target until the plurality of targets are completed.

  According to a fourth aspect of the present invention, in the invention according to the first, second, or third aspect, the rotation condition includes a shooting sequence of the target and a dwell time in which the camera is stationary in the target direction. It was.

  According to a fifth aspect of the present invention, in the fourth aspect of the invention, the random condition generating means randomly searches from the plurality of preset targets to determine a shooting order, and stores a plurality of pre-stored Random search means for randomly searching for a residence time for each target from the dwell time, wherein the rotation control means controls the camera to rotate in the target direction in the shooting order determined by the random search means, and Each time the camera reaches the target direction, the camera is kept stationary for the dwell time determined corresponding to the target.

  According to a sixth aspect of the present invention, in the first, second, or third aspect of the invention, the rotation condition includes a rotation trajectory of the camera when controlled in the target direction. .

  According to a seventh aspect of the present invention, in the sixth aspect, the turning locus includes a turning locus to the target and a detour locus in a pseudo target direction other than the target. The rotation speed, the rotation time, or the rotation distance for rotation are included.

  The invention according to claim 8 is the invention according to claim 7, wherein the random condition generation means searches at random from a plurality of targets set by the preset means to determine a shooting order and stores in advance. A pseudo target is randomly searched from a plurality of pseudo targets including zero and a plurality of rotation times or distances for rotating a detour locus, and the rotation speed and rotation are determined for each pseudo target searched. Random search means for randomly searching for a moving time or a turning distance is provided, and the turning control means moves the camera in the direction of the target and the pseudo target based on the imaging order and the pseudo target searched by the random search means. When the rotation control is performed and the camera is controlled to rotate toward the pseudo target, the camera is rotated by the rotation time or distance.

ADVANTAGE OF THE INVENTION According to this invention, it can prevent estimating the imaging | photography direction (position) of the camera in the whole monitoring area | region, the motion to the direction, and the motion of the camera between targets. It is also possible to prevent a short-time camera movement between targets. Therefore, there is an effect of preventing the risk of intrusion. If it is strong, the safety effect can be enhanced.

  An embodiment according to the invention will be described with reference to the following drawings. FIG. 1 is a diagram for explaining a use situation of an embodiment of the present invention, and shows a placement situation in a premises. FIG. 2 is a diagram illustrating a configuration including functional blocks of the present embodiment. FIG. 3 is a diagram for explaining shooting targets and camera movement. FIG. 4 is a diagram for explaining the control timing of the rotation control means 11 in FIG. FIG. 5 is a diagram illustrating an operation flow in the case of randomly controlling the shooting order of the camera. FIG. 6 is a diagram illustrating an operation flow in the case where the shooting path of the camera is randomly controlled. Hereinafter, description will be made based on these drawings.

  In FIG. 1, a monitoring device 200 including a camera device is controlled from a far end by a monitoring control device 100 that is rotatably installed on a pillar and connected by a cable. The cable may be wireless, or may be connected via a wired or wireless network.

  In the campus of FIG. 1, for example, targets 1 to 8 are set as shooting targets. FIG. 1 is shown for easy understanding. Actually, there is no sign as shown in FIG. 1, and the direction (position) indicated by the sign in FIG. This indicates that information for controlling the direction (position), that is, information relating to the pan rotation position and tilt rotation position is preset. The pseudo targets 9 and 10 indicate that the randomly generated pseudo target is the position shown in FIG. FIG. 3 shows an imaging sequence and imaging routes formed at random (details will be described later).

  In FIG. 2, the monitoring device 200 includes a camera interface 10, a rotation control unit 11, and a photographing unit 12. The photographing means 12 is provided in a pan head (not shown) for enabling the photographing camera 12a to be rotated up and down, left and right, a tilt mechanism 12b rotates the pan head up and down according to control information, and a pan mechanism 12c The head is rotated horizontally according to the control information. Detailed mechanisms of the tilt mechanism 12b and the pan mechanism 12c have already been conventionally used, and a description thereof will be omitted.

  The rotation control unit 11 receives conditions necessary for rotation from the monitoring control device 100, and based on the conditions, the rotation amount of the tilt and / or the rotation amount of the pan (when there is no need to distinguish between them, Collectively referred to as “rotation control amount”), and the tilt mechanism 12b and the pan mechanism 12c are driven and controlled by the calculated rotation control amount. The rotation control unit 11 includes a condition storage unit 11a and a camera control unit 11b. The condition storage unit 11b is preset and stored by preset means 2 described later in association with identification codes of at least a plurality of targets (1 to 8 in FIG. 1) and directions (pan rotation position, tilt rotation position). . Similarly, with respect to the pseudo target, as with the target, the identification code and the direction are preset in association with each other.

Each time the camera control unit 11b receives a rotation condition such as a randomly generated target or pseudo target from the monitoring control device 100, the camera control unit 11b calculates a control amount to be driven next. For example, the following calculation is performed.
(A) Calculation and control of the rotation control amount for the next target (this will be described by taking the monitoring condition “sequential round” (first round) in FIG. 3 as an example. FIG. 4A shows the timing)
This is because, for example, during the rotation control of the photographing unit 12 toward the target 3 or after the completion of the control, the next target 5 and the residence time “02” that are randomly generated and sent from the monitoring control device 100. The direction of the target 5 (pan rotation position, tilt rotation position) is read from the condition storage means 11a, and the rotation control amount (tilt rotation amount and / or equivalent) corresponding to the difference from the direction of the target 3 is received. (Pan rotation amount) is calculated, and after the control and shooting of the target 3 are completed, the shooting means 12 is controlled and set toward the target 5 by the calculated rotation control amount, and the shooting time is included. It stays at that position for 2 seconds corresponding to the residence time “02”. Thereafter, similarly, calculation is performed with targets 8, 2, 7, and 4, and control is set. When there is a stay instruction, the target is retained for the time indicated.

(B) Calculation and control of the rotation control amount when controlling to the next target via the pseudo target (the first round of the monitoring condition “path one round” in FIG. 3) will be described as an example. (Timing is shown in (B2).)
At present, for example, as shown in FIG. 4 (B1), this is randomly generated and sent from the monitoring control device 100 during the rotation control of the photographing means 12 toward the target 3 or after the completion of the control. After receiving the information of the next pseudo target 10 and the rotation speed and completing the control and photographing for the target 3, the direction (pan rotation position, tilt rotation position) of the pseudo target 10 is read from the condition storage unit 11a. A rotation control amount (tilt rotation amount and / or pan rotation amount) corresponding to the difference between the pseudo target 10 and the direction of the target 3 is calculated, and the photographing means is used by the rotation speed indicated by the calculated rotation control amount. 12 is controlled toward the pseudo target 10. At that time, the control time or control distance (rotation control amount) from the start of control is counted. Then, it is determined whether or not the control to the pseudo target 10 exceeds a certain limit control time or control distance, and when the control to the pseudo target 10 is completed without exceeding, the direction of the next target 5 is thereafter performed. And a control amount corresponding to the difference between the direction of the target 10 and the pseudo target 10 is calculated and controlled.

  However, as shown in FIG. 4 (B2), when it is determined that the control of the pseudo target 10 exceeds a certain limit control time or control distance, the control is stopped at that time, and the direction at that time Control is started by calculating a control amount corresponding to the difference between the (pan rotation position, tilt rotation position) and the next target 5 direction.

  As described above, a fixed limit control time or control distance is provided for the control to the pseudo target because the direction and the positional relationship between the pseudo target generated at random and the target before and after the control to the pseudo target are set. This is because, if the direction and the positional relationship are too far, the time is prolonged and the efficiency is deteriorated. In the case of (b) above, since there is a time limit and a distance for controlling the pseudo target, the calculation of the rotation control amount for each target is performed after the control is completed or after reaching the time limit and the distance limit. In the case of (a), the rotation control amount is calculated to the next target during the control to the previous target, but after the control to the previous target is completed as in (b). You may make it calculate.

  The camera interface 10 is a means for configuring the monitoring device 200 and the monitoring control device 100 in separate housings and electrically coupling them together, and may be a communication interface having a transmission / reception function.

  Next, the monitoring control device 100 will be described. For example, the random generation means 1 randomly generates a target, a pseudo target, a dwell time when the camera is stationary on the target, a speed, and the like. In this example, the random generation means 1 includes a plurality of target identification information preset in the target memory 1b, a plurality of time information preset in the residence time memory 1c, and a plurality of preset information in the pseudo target memory 1d. The random search means 1a searches at random from the pseudo target identification information and a plurality of speed information preset in the speed memory 1e, and searches each one by one search. The search timing is initially performed after receiving a start signal. However, during the monitoring operation, the search timing means 4 completes control from the camera control unit 11b to the target controlled by the camera control unit 11b or to a pseudo target. The timing described with reference to FIG. 4 in the above (a) and (b) is generated in response to the completion of the control, or the timing after the residence time has elapsed, and the random search means 1a is instructed.

  The switch S1 in FIG. 1 is turned on by a cyclic key of the user interface 7 and turned off by a non-cyclic key. When the switch S1 is on, the tour management means 3 makes a round of the target when the random search means 1a searches for the target, as shown in the “order round” or “path round” monitoring condition of FIG. It is monitored so that it does not double in between. When the switch S1 is off, the tour management means 3 is not managing, so the random search means 1a keeps searching, so it is shown in the monitoring condition of FIG. 3 as “Sequential tour indefinite” or “Route tour indefinite”. It may become like this.

  The switches S2a and S2b in FIG. 1 are turned off by the order priority key of the user interface 7 and turned on by the path priority key. That is, the route priority key is used when it is desired to set a pseudo target between targets and randomize the route. FIG. 3 is an example of a result of generating the rotation condition of the photographing unit 1 by the random condition generating unit 1. In the case of route priority, as shown by “route round” and “route round indefinite” in FIG. 3, the target, residence time, pseudo target, and speed are searched at random. In the case of order priority, as shown in “order round” and “order round indefinite” in FIG. 3, the target and the residence time are randomly searched. As shown in FIG. 3, the camera control command generating means 5 uses the rotation condition of the photographing means 1 generated by the random condition generating means 1 as a command to the camera control section 11b via the control interface 8 and the camera interface 10. send.

  The user interface 7 of FIG. 1 includes an operation panel provided with display means and operation means. The cyclic key, non-cyclic key, order priority key, and path priority key are as described above. The parameter input means is a means for presetting a target, a pseudo target, a residence time, a speed, and the like before starting monitoring. For the target and the pseudo target, identification information and coordinate information are input. The preset unit 2 stores the identification information in the target memory 1b and the pseudo memory 1d, and calculates the pan rotation position and the tilt rotation position of each target and each suspicious target from the coordinate information of each target and pseudo target. Then, it is preset by sending it to the condition storage unit 11a together with the identification information and storing it in correspondence. It is convenient to input the coordinate information by displaying a coordinate diagram representing the premises in advance and setting the target and the pseudo target with markers.

  Random condition generation means 1, preset means 2, patrol management means 3, search timing means 4, camera control generation means 5 store information such as a memory that stores a program for controlling the above operation, a CPU that executes the program, and a target. Configured with memory. The rotation control means 11 is also composed of another program and a CPU.

  Next, a series of operations when the order is preferentially randomized will be described with reference to FIG. 5, and a series of operations when the route is preferentially randomized will be described with reference to FIG.

[Order priority random control] (See Fig. 5)
Each step S number below corresponds to the S number in FIG.
Steps S1 and S2: This is a preparation stage, and identification information, coordinate information, and dwell time of a plurality of targets are input by parameter input means as conditions for rotation control (S1). The preset means 2 stores the target list and the dwell time in the target memory 1b and dwell time memory 1c, and the target condition storage unit 11a obtains and stores the pan rotation position and tilt rotation position for each target. Let

In step 11 and thereafter, monitoring is performed.
Step S11: A cyclic key or a non-cyclic key and an order priority key are set. At this time, the switches S2a and S2b are turned off.
Step S12: The random search means 1a searches for the first shooting target.
Step S13: If a patrol key has been set, proceed to YES. If the acyclic key is set, the process proceeds to NO, and further proceeds to step S16.

Steps S14 and S15: This is a stage in which the patrol management means 3 manages the target so that it is not doubled in one round. If it is not confirmed whether the searched target is in the list (S14) (NO), the process returns to step S12 and is searched again. If it is in the list (YES), it is deleted from the list (S15). Deletion is for preventing the search from being the next search target.
Step S16: The random search means 1a searches for the residence time at the target position. You may perform in parallel with step S12.

Step S17: The camera control command means 5 generates a command including the searched condition and sends it to the camera control unit 11b.
Step S18: Upon receiving the command, the rotation control unit 11b reads out the target pan rotation position (direction) and tilt rotation position (angle) from the target condition storage unit 11a based on the target identification information in the command. And the difference between the current pan rotation position and tilt rotation position of the camera 12a is calculated to control the photographing means 12.

Step S19: The rotation control unit 11b starts counting after controlling to the target, waits until the dwell time in the command elapses, and sends a completion notice to the search timing means 4 after the dwell time elapses.
Step S20: If the acyclic key is set (NO), the process returns to step S12 to search for the next target.

Step S21: If the patrol management means 3 confirms whether or not the target list includes a target that has not been shot in one round (YES), the process returns to step S12 to search for the next target. When there is no (NO), the circuit is complete.
Step S22: Since the shooting has been completed for the target, the tour management means 3 returns the search target list to all searchable targets so that the next round of target search is started in step S12. .

[Route priority random control] (See Fig. 5)
In this control, control to the pseudo target is added to the order priority random control.
Steps S101 and S102: Preparatory stage, and parameters for input identification information of multiple targets, coordinate information thereof, identification information of multiple pseudo targets, coordinate information, dwell time, rotation speed, etc. as conditions for rotation control Input by means (S1). The preset means 2 stores the target list, dwell time, pseudo target and rotation speed in the target memory 1b, dwell time memory 1c, pseudo target memory 1d, and speed memory 1e, and the condition storage unit 11a The pan rotation position and tilt rotation position are obtained and stored for each target and for each pseudo target.

In step 111 and subsequent steps, monitoring is performed.
Step S111: A cyclic key or a non-cyclic key and a route priority key are set. At this time, the switches S2a and S2b are turned on. In other words, it becomes the target of random search.
Step S112: The random search means 1a searches for the first shooting target.
Step S13: If a patrol key has been set, proceed to YES. If the acyclic key is set, the process proceeds to NO, and further proceeds to step S116.

Steps S114 and S115: The traveling management means 3 manages the target so that it is not doubled in one cycle. If it is not confirmed whether the searched target is in the list (S114) (NO), the process returns to step S12 and is searched again. If it is in the list (YES), it is deleted from the list (S115). Deletion is for preventing the search from being the next search target.
Step S116: The random search means 1a searches for the residence time at the target position. You may perform in parallel with step S112.

Step S117: The random search means 1a searches for a pseudo target.
Step S118: If the search result is “none” (NO), the process proceeds to step 123.
Step S119: The random search means 1a searches for the rotation speed.
Then, the camera control instruction means 5 generates a command including the searched condition and sends the command to the camera control unit 11b.

Step S120: Upon receiving the command, the rotation control unit 11b reads the pan rotation position (direction) and tilt rotation position (angle) of the corresponding pseudo target from the condition storage unit 11a based on the target identification information in the command, and these Then, the difference between the current pan rotation position and tilt rotation position of the camera 12a is calculated to control the photographing means 12, and control is started at the rotation speed specified by the command.
Steps S121 and 122: The rotation control unit 11b cant start the rotation control time or distance (rotation amount) to the pseudo target (S121), and whether or not the predetermined time limit or distance has been exceeded. Confirm whether or not the control to the pseudo target has been completed before the time limit or distance. (S122)

Steps S123 and 124: When the rotation control unit 11b determines NO in Step 118, the rotation rotation unit (direction) and tilt of the corresponding pseudo target from the condition storage unit 11a based on the target identification information in the command. The rotational position (angle) is read out, and the difference between them and the current pan rotation position and tilt rotation position of the camera 12a is calculated (S123), and the photographing means 12 is controlled (S124). When it is determined YES in step 122, the rotation control unit 11b corresponds to the time limit or distance, or the pan rotation position (direction), tilt rotation position (angle) corresponding to the pseudo target, and step S12. The difference between the target pan rotation position and tilt rotation position retrieved in (1) is calculated (S123), and the photographing means 12 is controlled (S124).
Step S125, Step 126, Step 127, and Step 128: Since they are the same as Step S19, Step 20, Step 21, and Step 22, their descriptions are omitted.

  With the configuration described above, for example, the shooting order can be set in an order that cannot be frequently predicted, and if you think you are heading to the pseudo target at a slow speed, you can quickly reverse the original target and shoot It is also possible. Therefore, there is a preventive sign to confuse intruders.

It is a figure for demonstrating the use condition of embodiment of this invention, and is a figure which shows the arrangement | positioning condition in a campus. It is a figure which shows the structure containing the functional block of this embodiment. It is a figure for demonstrating the objective of imaging | photography and the motion of a camera. It is a figure for demonstrating the control timing of the rotation control means 11 in FIG. It is a figure which shows the operation | movement flow in the case of controlling the imaging | photography order of a camera at random. It is a figure which shows the operation | movement flow in the case of controlling the imaging | photography route of a camera at random.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Random condition production | generation means 2 Preset means 3 Travel management means 4 Search timing means 5 Camera control command generation means 7 User interface 8 Control interface 10 Camera interface 11 Rotation control means 12 Shooting means 100 Monitoring control apparatus 200 Monitoring apparatus

Claims (8)

  A camera that rotates toward a plurality of targets and changes the direction of shooting, and a random condition generation unit that randomly generates the rotation conditions including a shooting order of the plurality of targets that are preset in advance. A surveillance camera device comprising: a rotation control unit that rotates and shoots the camera according to a rotation condition randomly generated by the random condition generation unit.   Random condition generation means is configured to determine the next target and the conditions for the rotation before the control means is controlling the camera to the previous target or before starting the rotation control of the camera to the next target after the control. The surveillance camera device according to claim 1, wherein the surveillance camera device is randomly generated.   The monitoring camera device according to claim 2, wherein the next target does not include a previous target value until the plurality of target values are completed.   The surveillance camera device according to claim 1, wherein the rotation condition includes a shooting sequence of the target and a dwell time in which the camera is stationary in the target direction.   The random condition generating means randomly searches from the preset plural targets to determine a photographing order, and randomly searches for a residence time for each target from a plurality of residence times stored in advance. The rotation control means controls the rotation of the camera in the target direction in the shooting order determined by the random search means, and corresponds to the target when the camera reaches the target direction. The surveillance camera device according to claim 4, wherein the camera is stopped for the determined residence time.   The surveillance camera control device according to claim 1, wherein the rotation condition includes a rotation trajectory of the camera when controlled in the target direction.   The rotation locus includes a rotation locus to the target and a detour locus in a pseudo target direction other than the target, and a rotation speed, a rotation time, or a rotation for rotating the detour locus. The surveillance camera control device according to claim 6, wherein a distance is included.   The random condition generation means randomly searches from a plurality of targets set by the preset means to determine a shooting order, and rotates a plurality of pseudo targets including zero and a detour locus stored in advance. Random search means for randomly searching for a pseudo target from a plurality of rotation times or distances to be used and for randomly searching for the rotation speed, rotation time, or rotation distance for each searched pseudo target. The rotation control unit controls the rotation of the camera in the direction of the target and the pseudo target based on the imaging order and the pseudo target searched by the random search unit, and the rotation control of the camera toward the pseudo target. The surveillance camera device according to claim 7, wherein the surveillance camera device is rotated by the rotation time or the rotation distance.