JP2017176059A - Box trap control system, control device, box trap control method and box trap control program - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a box trap control system capable of suppressing reduction in detection accuracy of capturing targets.SOLUTION: A control device 101 controls a time interval t for acquiring a reference image RP which is photographed by a second camera C2 for photographing a photographing range R2 including a box trap 110 according to an altitude A of the sun. In detail, for example, the control device 101 changes the time interval t for acquiring the reference image RP to a second time interval t2 which is shorter than a first time interval t1 according to a fact that the altitude A of the sun becomes equal to or more than a prescribed angle X. The control device 101 changes the time interval t for acquiring the reference image RP to the first time interval t1, according to a fact that the altitude A of the sun becomes less than the prescribed angle X.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a box kite control system, a control device, a box kite control method, and a box kite control program.

  Conventionally, a box-shaped kite called a box kite is used as a kite for capturing harmful animals. In many cases, when the animal to be captured enters the box cage, the entrance of the box cage is closed by the action of the actuator, and the animal is trapped. Examples of animals to be captured include wild boars and deer.

  As a prior art, for example, the leaf wilting degree is calculated based on detection information obtained by detecting the leaf state of the growing plant, and the nutrient solution supply is performed when the calculated wilting degree reaches a separately set nutrient solution supply reference value. There are some which operate the means to supply a predetermined nutrient solution to the growing plant. There is also a technique for controlling the backlight so as to adjust the amount of light emitted from the backlight based on the frame rate output from the camera.

JP 2009-44999 A JP 2006-324926 A

  However, in the prior art, there is a case where the accuracy when detecting an animal to be captured that has entered the box cage based on a captured image obtained by shooting the box cage may be lowered. For example, there are cases where the brightness (brightness) of the captured image changes greatly due to the influence of environmental changes such as sunlight and weather, and it is impossible to accurately detect the animal to be captured.

  In one aspect, an object of the present invention is to provide a box kite control system, a control device, a box kite control method, and a box kite control program that suppress a decrease in detection accuracy of a capture target.

  According to one aspect of the present invention, according to a comparison between a captured image obtained by capturing a box cage and a reference image captured at an imaging timing before the imaging timing of the captured image, A box fence control system, a control apparatus, a box fence control method, and a box fence control program for detecting an invading capture target, the box fence control for controlling the time interval for acquiring the reference image according to the altitude of the sun A system, a control device, a box kite control method and a box kite control program are proposed.

  Further, according to one aspect of the present invention, the box is obtained according to a comparison between a captured image obtained by capturing the box basket and a reference image captured at an imaging timing before the imaging timing of the captured image. A box kite control system, a control apparatus, a box kite control method, and a box kite control program for detecting a capture target that has entered a kite, wherein the reference image is selected according to sunrise time and / or sunset time and time information. A box kite control system, a control device, a box kite control method, and a box kite control program for controlling a time interval to be acquired are proposed.

  According to one aspect of the present invention, there is an effect that it is possible to suppress a decrease in detection accuracy of a capture target.

FIG. 1 is an explanatory diagram showing a system configuration example of the box cage control system 100. FIG. 2 is a block diagram illustrating a hardware configuration example of the control device 101. FIG. 3 is an explanatory diagram illustrating an example of the contents stored in the reference image DB 300. FIG. 4 is a block diagram illustrating a functional configuration example of the control device 101. FIG. 5 is an explanatory diagram illustrating an example of detection of the number of capture targets. FIG. 6A is an explanatory diagram (part 1) illustrating an example of door closing control of the box cage 110. FIG. 6B is an explanatory diagram (part 2) illustrating an example of closing control of the box cage 110. FIG. 7 is an explanatory diagram showing a specific example of the capture notification. FIG. 8 is an explanatory diagram showing another system configuration example of the box basket control system 100. FIG. 9 is a flowchart illustrating an example of a first interval control processing procedure of the control apparatus 101. FIG. 10 is a flowchart illustrating an example of the second interval control processing procedure of the control apparatus 101. FIG. 11 is an explanatory diagram illustrating an example of a reference image acquisition processing procedure of the control device 101. FIG. 12 is a flowchart illustrating an example of a door control processing procedure of the control device 101. FIG. 13 is a flowchart illustrating an example of a specific processing procedure of the first detection process.

  Exemplary embodiments of a box cage control system, a control device, a box cage control method, and a box cage control program according to the present invention will be described below in detail with reference to the drawings.

(Embodiment)
First, a system configuration example of the box fence control system 100 according to the embodiment will be described. FIG. 1 is an explanatory diagram showing a system configuration example of the box cage control system 100. In FIG. 1, a box cage control system 100 includes a control device 101, a first camera C1, and a second camera C2. In the box cage control system 100, the control device 101 and the first and second cameras C1 and C2 are connected to each other via a wired or wireless network so that they can communicate with each other.

  The control device 101 is a computer that controls the operation device 112 of the door 111 of the box basket 110 to close the door 111. The box cage 110 is a box-like cage for capturing animals to be captured such as pests and alien species, and has a cage shape that allows internal observation from the outside. Examples of the animal to be captured include wild boar, deer, raccoon and the like.

  When the stopper of the door 111 is released by the actuating device 112, the box cage 110 has a mechanism in which the door 111 falls and the animal that has entered the box cage 110 is trapped. The control device 101 may be a general-purpose arithmetic device such as a tablet PC (personal computer) or a smartphone, or may be a dedicated device that controls the operating device 112 of the box basket 110.

  The first camera C <b> 1 is an imaging device that captures an imaging range R <b> 1 that includes an area around the box cage 110. The first camera C1 is installed at a position overlooking the box cage 110 (in the example of FIG. 1, the upper portion of the box cage 110). An existing capture target animal can be imaged. The area around the box basket 110 is, for example, an area of several meters around the box box 110.

  The second camera C2 is an imaging device that images the imaging range R2 including the box cage 110. The second camera C2 is installed at a position overlooking the inside of the box cage 110 (in the example of FIG. 1, the upper part of the box cage 110), and can capture images of the capture target animals existing in the box cage 110.

  In the box reed control system 100, for example, the first camera C1 images the imaging range R1 at a time interval t, and sequentially captures the captured images to the control device 101 via an image I / F (Interface) (not shown). Output. Similarly, for example, the second camera C2 images the imaging range R2 at a time interval t, and sequentially outputs the captured images to the control device 101 via an image I / F (not shown). The time interval t is a time interval that is changed according to an instruction from the control device 101. As an initial value of the time interval t, for example, a time of about 30 minutes is set.

  Further, when the first camera C1 detects a moving body (capture target animal) in the imaging range R1, the first camera C1 has a cycle shorter than the time interval t (for example, every several seconds) until the moving body in the imaging range R1 is not detected. With this, the imaging range R1 is imaged. Then, the first camera C1 sequentially outputs the captured images to the control device 101 via the image I / F.

  Similarly, when the second camera C2 detects a moving body (capture target animal) in the imaging range R2, the second camera C2 has a period shorter than the time interval t (for example, every several seconds until no moving body in the imaging range R2 is detected). ) To image the imaging range R2. Then, the second camera C2 sequentially outputs the captured images to the control device 101 via the image I / F.

  Specifically, for example, the first and second cameras C1 and C2 may be infrared cameras having a function of detecting heat in the imaging ranges R1 and R2 (infrared rays emitted from the detected object). In this case, when the first and second cameras C1 and C2 detect heat in the imaging ranges R1 and R2, they start imaging with a period shorter than the time interval t.

  When the second camera C2 detects heat in the imaging range R2, the second camera C2 may notify the first camera C1 of a detection result indicating that a moving body in the imaging range R2 has been detected. In this case, the first camera C1 may start imaging in a cycle shorter than the time interval t in response to receiving the detection result from the second camera C2.

  Moreover, you may decide to provide the near-infrared sensor which detects the mobile body (capture object animal) in the box cage 110. FIG. In this case, for example, the first and second cameras C1 and C2 respectively start imaging at a period shorter than the time interval t in response to receiving the detection result from the near-infrared sensor. Good.

  In the box reed control system 100, the control device 101 compares the captured image obtained by capturing the box reed 110 with a reference image captured at an image capturing timing before the image capturing timing of the captured image. A moving object (capture target animal) that has entered the box cage 110 is detected. On the other hand, the box cage 110 is often installed outdoors due to its character. For this reason, the brightness (brightness) of the captured image may change greatly due to environmental changes such as sunlight and weather, and also due to shadows of birds, insects, and plants.

  That is, it is highly likely that the brightness of a captured image captured in a time zone in which the brightness changes drastically, such as daytime, is greatly changed due to external factors compared to nighttime. When the change in brightness between the captured image and the reference image becomes large, erroneous detection of the moving object (capture target animal) is caused. Therefore, it is desirable to prepare a reference image (a so-called background image in the background subtraction method) that is captured at a shorter time interval than at night in a time zone in which brightness changes drastically, such as daytime.

  Therefore, in the present embodiment, the time interval for acquiring the reference image used for detecting the moving body (capture target animal) that has entered the box cage 110 is set according to the altitude of the sun or the sunrise time and / or the sunset time. The box control method to be controlled will be described. As a result, the reference image acquisition interval is shortened in a time zone in which the brightness changes greatly due to environmental changes, and a decrease in the detection accuracy of the capture target animal is suppressed.

  Hereinafter, a specific example of the box reed control system 100 will be described. In the following description, captured images respectively captured at time intervals t by the first and second cameras C1 and C2 may be referred to as “reference images RP”. A captured image captured by the first and second cameras C1 and C2 with a period shorter than the time interval t may be referred to as “captured image P”. Further, the case where the first camera C1 starts imaging at a cycle shorter than the time interval t in response to receiving the detection result from the second camera C2 will be described as an example. Thereby, the first and second cameras C1 and C2 start imaging at a cycle shorter than the time interval t at substantially the same timing (timing when the capture target animal enters or tries to enter the box cage 110). be able to.

(Hardware configuration example of the control device 101)
Next, a hardware configuration example of the control device 101 illustrated in FIG. 1 will be described.

  FIG. 2 is a block diagram illustrating a hardware configuration example of the control device 101. In FIG. 2, the control device 101 includes a CPU (Central Processing Unit) 201, a memory 202, an I / F (Interface) 203, a disk drive 204, a disk 205, a GPS (Global Positioning System) unit 206, Have Each component is connected by a bus 200.

  Here, the CPU 201 governs overall control of the control device 101. The memory 202 includes, for example, a ROM (Read Only Memory), a RAM (Random Access Memory), and a flash ROM. Specifically, for example, a flash ROM or ROM stores various programs, and a RAM is used as a work area of the CPU 201. The program stored in the memory 202 is loaded on the CPU 201 to cause the CPU 201 to execute the coded process.

  The I / F 203 is connected to a wired or wireless network, and is connected to another computer via the network. The I / F 203 controls an interface between the network and the apparatus, and controls data input / output from other computers. For example, a modem or a LAN adapter may be employed as the I / F 203.

  The disk drive 204 controls reading / writing of data with respect to the disk 205 according to the control of the CPU 201. The disk 205 stores data written under the control of the disk drive 204. Examples of the disk 205 include a magnetic disk and an optical disk.

  The GPS unit 207 receives radio waves from GPS satellites and outputs position information indicating the position of the device itself. The position information of the control device 101 is, for example, latitude / longitude information that identifies one point on the earth.

  Note that the control device 101 may include, for example, an SSD (Solid State Drive), an input device, and a display in addition to the above-described components. Further, the control apparatus 101 may not include the disk drive 204 and the disk 205 among the above-described components.

(Contents stored in the reference image DB 300)
Next, the contents stored in the reference image DB (Database) 300 included in the control apparatus 101 will be described. The reference image DB 300 is realized by a storage device such as the memory 202 and the disk 205 shown in FIG.

  FIG. 3 is an explanatory diagram illustrating an example of the contents stored in the reference image DB 300. In FIG. 3, the reference image DB 300 includes fields for camera ID, imaging date and time, and image data. By setting information in each field, reference image information (for example, reference image information 300-1 to 300-4). Is stored as a record.

  Here, the camera ID is an identifier for identifying the first and second cameras C1 and C2. The camera ID “C1” indicates the first camera C1. The camera ID “C2” indicates the second camera C2. The imaging date / time indicates the date / time (year / month / day / hour / minute / second) when the reference image RP was captured by the first or second camera C1, C2. The image data is image data of the reference image RP.

  For example, the reference image information 300-1 indicates the imaging date and time “February 10, 2016 0:00:00” and the image data “RP1” of the reference image RP captured by the first camera C1.

(Functional configuration example of the control device 101)
FIG. 4 is a block diagram illustrating a functional configuration example of the control device 101. In FIG. 4, the control device 101 includes an acquisition unit 401, a distance control unit 402, a detection unit 403, a determination unit 404, a door control unit 405, and a notification unit 406. The acquisition unit 401 to the notification unit 406 are functions as a control unit. Specifically, for example, by causing the CPU 201 to execute a program stored in a storage device such as the memory 202 and the disk 205 illustrated in FIG. Alternatively, the function is realized by the I / F 203. The processing result of each functional unit is stored in a storage device such as the memory 202 and the disk 205, for example.

  The acquisition unit 401 acquires a captured image captured by the first camera C1. Specifically, for example, the acquisition unit 401 acquires, from the first camera C1, a reference image RP that is captured by the first camera C1 at a time interval t and sequentially output. The reference image RP is an image used for detecting a capture target animal that is a moving object to be imaged, and is a captured image captured when the capture target animal is not detected.

  Further, the acquisition unit 401 acquires captured images P that are captured by the first camera C1 with a period shorter than the time interval t and sequentially output. The captured image P is an image used for detection of a capture target animal that is a moving object to be imaged together with the reference image RP, and is a captured image captured when the capture target animal is detected.

  The acquisition unit 401 acquires a captured image captured by the second camera C2. Specifically, for example, the acquisition unit 401 acquires, from the second camera C2, a reference image RP that is captured by the second camera C2 at a time interval t and sequentially output. In addition, the acquisition unit 401 acquires captured images P that are captured by the second camera C2 in a cycle shorter than the time interval t and sequentially output.

  Information indicating the imaging date and time is added to the captured images captured by the first and second cameras C1 and C2. Further, the reference image RP acquired from the first camera C1 is stored in the reference image DB 300 illustrated in FIG. 3 in association with the camera ID of the first camera C1, for example. In addition, the reference image RP acquired from the second camera C2 is stored in the reference image DB 300 in association with the camera ID of the second camera C2, for example.

  Note that, for example, information indicating that the captured image is captured before the capture target animal (heat in each imaging range R1, R2) is detected may be added to the reference image RP. Thereby, the acquisition unit 401 can determine whether the captured image acquired from the first and second cameras C1 and C2 is the reference image RP or the captured image P. However, the acquisition unit 401 may determine whether the image is the reference image RP or the captured image P from the difference in the interval at which the captured images are output from the first and second cameras C1 and C2.

  The acquisition unit 401 acquires position information of the own device. Here, the position information of the device itself is latitude / longitude information indicating the position of the control device 101, that is, the installation position of the box cage 110 to which the control device 101 is attached. Specifically, for example, the acquisition unit 401 may acquire position information measured by the GPS unit 206 illustrated in FIG.

  If the installation position of the box cage 110 is fixed, position information indicating the installation position of the box cage 110 may be recorded in advance in a storage device such as the memory 202 or the disk 205. In this case, for example, the acquisition unit 401 may acquire the position information of the own device by reading the position information recorded in the memory 202, the disk 205, or the like.

  The interval control unit 402 controls the time interval t at which the reference image RP captured by the first camera C1 is acquired according to the solar altitude A. Further, the interval control unit 402 controls the time interval t at which the reference image RP captured by the second camera C2 is acquired according to the solar altitude A.

  Here, the altitude A of the sun is an angle of how high the sun can be seen from the horizon when viewed from the observation point. The observation point is the installation position of the box cage 110, that is, the position of the control device 101. Specifically, for example, the interval control unit 402 calculates the solar altitude A at the current date and time based on the position information of the own device.

  If it demonstrates in detail, the space | interval control part 402 will calculate red longitude (alpha), for example using following formula (1). The equatorial α is an angle measured from the Equinox point along the celestial equator (the equatorial plane of the earth extended to a celestial sphere). However, λ indicates meridian. The ecliptic is equivalent to the longitude on the earth, and in the case of the sun, it is an angle indicating how far the ecliptic point has advanced in the orbital plane (the ecliptic plane). ε represents the ecliptic inclination angle. The ecliptic inclination angle is an angle (= 23.44 °) between the ecliptic and the celestial equator. T indicates the observation time. The observation time is a time measured in units of 35525 days with reference to 12:00 on January 1, 2000 (world time).

  Next, the space | interval control part 402 calculates declination (delta), for example using following formula (2). The declination δ is the angular distance between the celestial body and the celestial equator.

  Next, the space | interval control part 402 calculates the time angle H of a celestial body, for example using following formula (3). The hour angle H is an angle formed by a great circle (time zone) passing through the celestial poles on the celestial sphere with the celestial meridian. Where μ is the longitude of the observation point. UT is universal time. K is a constant (= 15) for converting the time into an angle. α is red meridian.

  And the space | interval control part 402 calculates the solar altitude A using following formula (4), for example. Where φ is the latitude of the observation point.

  Thereby, the solar altitude A at the current date and time (observation time) can be calculated. The calculation of the solar altitude A at the current date and time is executed each time a fixed time elapses, for example, starting from midnight on the observation day. The fixed time can be arbitrarily set, and is set to a time of about 1 minute to 1 hour, for example.

  Then, the interval control unit 402 sets a second time interval t shorter than the first time interval t1 to obtain the reference image RP in response to the calculated solar altitude A being equal to or greater than the predetermined angle X. The time interval t2 is changed. Further, the interval control unit 402 changes the time interval t for acquiring the reference image RP to the first time interval t1 in response to the solar altitude A being less than the predetermined angle X.

  Here, the predetermined angle X can be arbitrarily set, for example, an angle of about −5 ° to 0 °. The angle “0 °” corresponds to the solar altitude A at the time of sunrise or sunset. The angle “−5 °” corresponds to the altitude of the sun A at a time just before sunrise or a little later after sunset.

  The first time interval t1 is a time that can be arbitrarily set as the initial value of the time interval t, and is set to a time of about 30 minutes, for example. The second time interval t2 can be arbitrarily set to be shorter than the first time interval t1, and is set to a time of about 5 minutes, for example.

  Specifically, for example, the interval control unit 402 acquires the reference image RP for the first and second cameras C1 and C2 in response to the solar altitude A having reached a predetermined angle X or more. An instruction is given to change the time interval t to the second time interval t2. As a result, the first and second cameras C1 and C2 capture the reference image RP at the second time interval t2.

  Further, the interval control unit 402 sets the time interval t for acquiring the reference image RP to the first and second cameras C1 and C2 in response to the sun altitude A being less than the predetermined angle X. Instruct to change to the first time interval t1. As a result, the first and second cameras C1 and C2 capture the reference image RP at the first time interval t1.

  As a result, the reference image RP is displayed in a short period of about 5 minutes during a time period in which the captured image (for example, the brightness of the captured image) is likely to change significantly due to the influence of environmental changes such as sunlight and weather compared to nighttime. Can be acquired.

  For example, by setting the predetermined angle X to “0 °”, the acquisition interval of the reference image RP in the time zone from sunrise to sunset can be shortened. In addition, for example, by setting the predetermined angle X to “−5 °”, it becomes brighter just before sunset, or brighter for a while after sunset, so that it is bright for a while after sunset. It is possible to shorten the acquisition interval of the reference image RP in a time period until a little later.

  Further, the interval control unit 402 may calculate a time-series change of the solar altitude A on the observation date in advance. Specifically, for example, the interval control unit 402 uses the above formulas (1) to (4) to start from midnight on the observation day, for a certain time (for example, a time of about 1 minute to 1 hour). The time series change of the solar altitude A may be calculated with each date and time as the observation time.

  Next, the interval control unit 402 identifies the sunrise time and / or sunset time based on the time-series change of the calculated solar altitude A. Specifically, for example, the interval control unit 402 may specify the date and time when the solar altitude A is “0 °” at which the solar altitude A switches from minus to plus as the sunrise time. In addition, the interval control unit 402 may specify, for example, the time when the solar altitude A is “0 °” when the altitude of the sun changes from plus to minus as the sunset time.

  For example, the control device 101 transmits the position information of its own device to an external computer that provides a service for obtaining the sunrise / sunset time of the observation date from the latitude / longitude of the observation point. The sunrise / sunset time may be specified. That is, the control device 101 may acquire information indicating the sunrise / sunset time of the observation day from an external computer.

  Then, the interval control unit 402 changes the time interval t for acquiring the reference image RP to the second time interval t2 shorter than the first time interval t1 in response to the current date and time being the sunrise time. It may be. Specifically, for example, the interval control unit 402 sets the imaging timing of the reference image RP to the first and second cameras C1 and C2 in response to the current date and time being the sunrise time. Instruct to change to time interval t2.

  Accordingly, the time interval t is switched from the first time interval t1 to the second time interval t2 in accordance with the sunrise time of the day, and the acquisition interval of the reference image RP can be shortened.

  Further, the interval control unit 402 may change the time interval t for acquiring the reference image RP to the first time interval t1 in response to the current date and time being the sunset time. Specifically, for example, the interval control unit 402 sets the imaging timing of the reference image RP to the first and second cameras C1 and C2 in response to the current date and time being the sunset time. Instruct to change to time interval t1.

  Thereby, the time interval t can be switched from the second time interval t2 to the first time interval t1 in accordance with the sunset time of the day, and the acquisition interval of the reference image RP can be increased. As a result, it is possible to reduce power consumption by reducing the processing load required to capture and output the reference image RP in the first and second cameras C1 and C2. Furthermore, when the first and second cameras C1 and C2 are driven by a battery, the driving time can be prolonged, and labor for battery replacement can be reduced.

  For example, the interval control unit 402 sets the time interval t for acquiring the reference image RP to be shorter than the first time interval t1 in response to the current date and time being a time that is a predetermined time before the sunrise time. The time interval t2 may be changed to 2. The predetermined time can be arbitrarily set, and is set to a time of about 30 minutes to 1 hour, for example.

  Thereby, the acquisition interval of the reference image RP can be shortened by switching the time interval t from the first time interval t1 to the second time interval t2 in accordance with the time when the area around the sunrise becomes brighter.

  Further, the interval control unit 402 acquires the reference image RP, for example, in response to the current date and time becoming a time after a predetermined time from the sunset time (for example, after the elapse of about 30 minutes to 1 hour). The time interval t may be changed to the first time interval t1.

  Thereby, the time interval t is switched from the second time interval t2 to the first time interval t1 in accordance with the time when the surroundings become dark after a while after sunset, and the acquisition interval of the reference image RP can be lengthened. .

  The detection unit 403 detects the number of moving bodies to be imaged based on the captured image captured by the first camera C1. The moving object to be imaged is, for example, a capture target animal. In the following description, the number of moving bodies to be imaged detected based on the captured image captured by the first camera C1 may be referred to as “capture target number N1”.

  Specifically, for example, the detection unit 403 obtains the latest image from the reference image RP corresponding to the camera ID of the first camera C1 from the reference image DB 300 in response to obtaining the captured image P from the first camera C1. The reference image RP of the imaging date and time is acquired. That is, the detection unit 403 acquires the latest reference image RP captured at the imaging timing before the imaging timing of the captured image P.

Next, the detection unit 403 compares the acquired captured image P with the reference image RP, and extracts a difference area between the captured image P and the reference image RP. Then, the detection unit 403 determines whether or not the area S of the extracted difference region is greater than or _equal to the threshold value S _Th . The threshold value S _Th can be arbitrarily set according to the size of the captured image. For example, if the area S of the difference region is equal to or larger than the threshold value S _Th , the capture target animal that has entered the box cage 110 may be captured. It is set to a value that can be said that

Here, if the area S of the difference area is less than the threshold S _Th , the detection unit 403 does not detect the difference area as a capture target animal. On the other hand, if the area S of the difference region is equal to or greater than the threshold value S _Th , the detection unit 403 determines whether or not the shape of the difference region matches the body model corresponding to the capture target animal. The body model is, for example, a model that represents an outline when the capture target animal is viewed from above.

  As an example, when the capture target animal is a “wild boar”, the body model is an elliptical model. In this case, if the shape of the difference area is an ellipse, the detection unit 403 determines that the body model corresponding to the capture target animal “wild boar” is matched. The body model is generated in advance and stored in a storage device such as the memory 202 or the disk 205.

  When the detection unit 403 determines that the shape of the difference region matches the body model, the detection unit 403 detects the difference region as a capture target animal and increments the capture target N1. On the other hand, when the detection unit 403 determines that the shape of the difference region does not match the body model, the detection unit 403 determines whether or not there is a recess in the outer shape of the difference region.

  Here, when a recessed part exists, the detection part 403 divides | segments a difference area | region based on the position of a recessed part. And the detection part 403 each detects the division area which divided | segmented the difference area as a capture object animal, and counts up the capture object N1 by the number of division areas. Moreover, when there is no recess in the outer shape of the difference area, the detection unit 403 does not detect the difference area as a capture target animal.

  Thereby, for example, it is possible to prevent erroneous detection of a difference area detected by a change in luminance of a captured image accompanying an environmental change such as sunlight or weather as a capture target animal.

  The detection unit 403 detects the number N2 of moving bodies to be imaged based on the captured image captured by the second camera C2. In the following description, the number of moving bodies to be imaged detected based on the captured image captured by the second camera C2 may be referred to as “capture target number N2”.

  Specifically, for example, the detection unit 403 obtains the latest image among the reference images RP corresponding to the camera ID of the second camera C2 from the reference image DB 300 in response to obtaining the captured image P from the second camera C2. The reference image RP of the imaging date and time is acquired. Next, the detection unit 403 compares the acquired captured image P with the reference image RP, extracts a difference area between the captured image P and the reference image RP, and detects the capture target number N2. In addition, since the specific processing content which detects the capture target number N2 is the same as that in the case where the capture target number N1 is detected, the description thereof is omitted.

  Here, a detection example of the capture target numbers N1 and N2 will be described with reference to FIG. Here, a case where the capture target number N2 is detected based on a captured image (reference image RP, captured image P) captured by the second camera C2 will be described as an example.

  FIG. 5 is an explanatory diagram illustrating an example of detection of the number of capture targets. In FIG. 5, difference areas 510, 520, and 530 extracted by comparing the captured image P captured by the second camera C2 with the reference image RP are shown.

Here, the difference area 510 is a difference area whose area S is less than the threshold value S _Th . In this case, the detection unit 403 does not detect the difference area 510 as a capture target animal.

The difference region 520 is a difference region in which the area S is _{equal to} or greater than the threshold value S _Th and the shape matches the body model corresponding to the capture target animal “wild boar”. In this case, the detection unit 403 detects the difference area 520 as a capture target animal and increments the capture target number N1.

The difference region 530 is a difference region whose area S is _{equal to} or greater than the threshold value S _Th and whose shape does not match the body model corresponding to the capture target animal “wild boar”. In this case, the detection unit 403 determines whether there is a recess in the outer shape of the difference area 530. In the difference area 530, there are recesses 531 and 532. In this case, for example, the detection unit 403 divides the difference area 530 into two by a line segment connecting the recesses 531 and 532, and counts up the number N2 of capture targets by two.

  Note that the detection unit 403 may detect the number of capture targets N1 and N2 in accordance with, for example, the ratio of the area of the difference region to the area of the entire captured image P. Specifically, for example, the detection unit 403 follows a rule that if the ratio of the area of the difference region is in the 10% range, one head, two in the 20% range, and three in the 30% range, The number of capture targets N1 and N2 may be detected.

  Returning to the description of FIG. 4, the determination unit 404 determines whether or not the detected number of capture targets N2 exceeds a predetermined ratio R with respect to the number of capture targets N1. Note that the capture target numbers N1 and N2 are detected based on the captured images P captured by the first and second cameras C1 and C2 at substantially the same imaging timing (for example, within a few seconds of the shooting date and time difference). To do.

  Here, the predetermined ratio R can be arbitrarily set, and is set to a value of about 0.5 (50%), for example. Specifically, for example, the determination unit 404 determines whether or not a value (N2 / N1) obtained by dividing the capture target number N2 by the capture target number N1 exceeds a predetermined ratio R. In other words, the determination unit 404 determines whether or not capture target animals exceeding a predetermined ratio R of the capture target animals that have appeared around the box cage 110 have entered the box cage 110.

  The door control unit 405 controls the operation device 112 of the door 111 of the box basket 110 to perform the control for closing the door 111. Specifically, for example, when it is determined that the capture target number N2 exceeds a predetermined ratio R with respect to the capture target number N1, the door control unit 405 controls the operating device 112 to close the door 111. .

  Thereby, the door 111 can be closed when the capture target animal which exceeds the predetermined ratio R among the capture target animals that have appeared around the box cage 110 enters the box cage 110. That is, it is possible to specify the number to be captured with respect to the total number of animals to be captured that appear around the box cage 110.

Further, the determination unit 404 may determine whether or not the capture target number N2 is equal to or greater than the threshold value _Nmax . Here, the threshold value N _max is a value set according to the size of the box cage 110, and is set to the maximum number of animals to be captured that can be accommodated in the box cage 110, for example.

Moreover, if it is determined that the capture target number N2 is equal to or greater than the threshold _Nmax , the door control unit 405 may control the operation device 112 of the door 111 of the box basket 110 to close the door 111. . Thereby, although the capture target animal does not completely enter the box cage 110, the number of capture targets N2 does not exceed the predetermined ratio R with respect to the capture target number N1, so the door 111 does not close, and the capture opportunity Can be prevented.

  In response to the door 111 being closed by the door control unit 405, the notification unit 406 notifies a predetermined notification destination of a capture notification indicating that the capture target animal has been captured. Here, the predetermined notification destination is set in advance, for example, a user (such as a hunter) who manages the box cage 110. The capture notification indicates, for example, a captured image captured by the first or second camera C1, C2, information indicating the installation position of the box cage 110 (latitude / longitude, place name, etc.), and the date and time when the door 111 was closed. Information may be included.

  Specifically, for example, the notification unit 406 acquires a captured image captured by the first or second camera C1, C2 in response to the door 111 being closed. Then, the notification unit 406 may generate a capture notification including the acquired captured image, and transmit the generated capture notification to a predetermined notification destination mail address.

  The e-mail address of the predetermined notification destination is stored in a storage device such as the memory 202 and the disk 205, for example. A specific example of the capture notification will be described later with reference to FIG.

  Note that each functional unit of the control device 101 described above may be realized by a server capable of communicating with the control device 101 via a network such as the Internet. In this case, for example, the server controls the first camera C1, the second camera C2, and the operating device 112 via the control device 101.

In the above description, when the door control unit 405 determines that the capture target number N2 exceeds the predetermined ratio R with respect to the capture target number N1, the door control unit 405 controls the actuator 112 to close the door 111. However, the present invention is not limited to this. For example, the door control unit 405 closes the door 111 by controlling the operating device 112 when the capture target number N2 is equal to or greater than a predetermined threshold (for example, a value smaller than the threshold N _max ). Control may be performed.

(Example of closing control)
Next, an example of closing control of the door 111 of the box cage 110 will be described with reference to FIGS. 6A and 6B.

6A and 6B are explanatory diagrams illustrating an example of closing control of the box cage 110. FIG. In FIG. 6, the time-series change of the state around the box cage 110 until the door 111 of the box cage 110 is closed is shown. Here, the predetermined ratio R is “R = 0.5 (50%)”, and the threshold N _max is “N _max = 4”.

  At the time of (6-1), one wild boar has entered the box cage 110 and there are four wild boars around the box cage 110. That is, the capture target number N1 is “5” and the capture target number N2 is “1”. In this case, a value (1/5) obtained by dividing the capture target number N2 by the capture target number N1 is equal to or less than a predetermined ratio R, and the door 111 is not closed.

  At the time of (6-2), one wild boar has entered the box cage 110, and the number of wild boars in the box cage 110 is two. On the other hand, there are three wild boars around the box cage 110. In this case, the value (2/5) obtained by dividing the capture target number N2 (N2 = 2) by the capture target number N1 (N1 = 5) is equal to or less than the predetermined ratio R, and the door 111 is not closed.

  At the time of (6-3), one wild boar has entered the box cage 110, and the number of wild boars in the box cage 110 is three. On the other hand, there are two wild boars around the box cage 110. In this case, the value (3/5) obtained by dividing the capture target number N2 (N2 = 3) by the capture target number N1 (N1 = 5) exceeds a predetermined ratio R, and the door 111 is closed.

  Thus, it becomes possible to specify the number of captures (“3” in the example of FIG. 6) for the total number of capture target animals appearing around the box cage 110 (“5” in the example of FIG. 6). The opportunity loss can be reduced. For example, it is possible to prevent the capture opportunity from being missed by closing the door 111 at an early timing (for example, at the time of (6-2)) even though there are still wild boars around the box cage 110. In addition, it is possible to prevent the capture opportunity from being missed because the door 111 is not closed even though all the animals to be captured that have appeared around the box cage 110 have entered the box cage 110.

Even if many wild boars (for example, 10 wild boars) appear around the box cage 110, the door 111 is closed when the number of capture targets N2 is equal to or greater than the threshold N _max (N _max = 4). . Thereby, although the capture target animal does not completely enter the box cage 110, the number of capture targets N2 does not exceed the predetermined ratio R with respect to the capture target number N1, so the door 111 does not close, and the capture opportunity Can be prevented.

(Specific example of capture notification)
Next, a specific example of the capture notification will be described with reference to FIG.

  FIG. 7 is an explanatory diagram showing a specific example of the capture notification. In FIG. 7, the capture notification 700 is information indicating that the target animal has been captured. The capture notification 700 includes a captured image 710 captured when the door 111 of the box basket 110 is closed. The capture notification 700 includes a place name “XX village XX Yamanaka” indicating the installation position of the box cage 110 and a capture date and time “7:15:20 on February 11, 2016 indicating the date and time when the door 111 was closed. Seconds ".

  According to the capture notification 700, the manager of the box cage 110 can know when the capture target animal was captured with the box cage 110 installed. Thereby, the manager of the box cage 110 can save the trouble of visiting the installation location of the box cage 110 many times and confirming the capture state.

  Further, the manager of the box cage 110 can confirm how many capture target animals have been captured by referring to the captured image 710. Moreover, since the capture notification 700 is notified in response to the door 111 being closed, the manager of the box cage 110 can check the capture target animal without taking too much time after capturing. .

(Another system configuration example of the box cage control system 100)
In the above description, the box reed control system 100 has been described by taking as an example the case where the first and second cameras C1 and C2 are included. However, the present invention is not limited to this. For example, as shown in FIG. 8, the box cage control system 100 may not include the second camera C2.

  FIG. 8 is an explanatory diagram showing another system configuration example of the box basket control system 100. In FIG. 8, a box cage control system 100 includes a control device 101 and a first camera C1. In this case, for example, the control apparatus 101 detects the number of capture targets N2 by recognizing the movement of the moving body from the captured image captured by the first camera C1 and counting the movement that has passed through a specific location. You may decide.

  Specifically, for example, the control device 101 sets virtual sensing lines L1 and L2 as illustrated in FIG. 8 on the captured image captured by the first camera C1. Then, when the difference area extracted by comparing the captured image P captured by the first camera C1 with the reference image RP passes through the sensing lines L1 and L2 in the order of “L1 → L2”, the control device 101 captures The number N2 is incremented. That is, assuming that the capture target animal has entered the box cage 110, the capture target number N2 is increased by one.

  On the other hand, when the difference area extracted by comparing the captured image P captured by the first camera C1 with the reference image RP passes through the sensing lines L1 and L2 in the order of “L2 → L1”, the control device 101 captures Decrement the number N2. That is, assuming that the capture target animal has left the box cage 110, the number of capture targets N2 is reduced by one.

  Thereby, even if the imaging device which the box cage control system 100 has is one of the first cameras C1, it is possible to detect the capture target number N2 indicating the number of capture target animals that have entered the box cage 110. The processing content for detecting the capture target number N1 is the same as the processing content described above.

(Various processing procedures of the control device 101)
Next, various processing procedures of the control apparatus 101 will be described.

  First, the first and second interval control processing procedures of the control apparatus 101 will be described. The first and second interval control processes are processes for controlling the time interval t at which the first and second cameras C1 and C2 acquire the reference image RP. The first and second interval control processes are executed, for example, every day at midnight. Note that it is possible to arbitrarily set which of the first and second interval control processes is executed. Further, it is assumed that the first time interval t1 is set as the initial value of the time interval t between the first and second cameras C1 and C2.

<First interval control processing procedure>
FIG. 9 is a flowchart illustrating an example of a first interval control processing procedure of the control apparatus 101. In the flowchart of FIG. 9, first, the control device 101 acquires position information of its own device (step S <b> 901). Next, the control apparatus 101 calculates the solar altitude A at the current date and time based on the acquired position information of the own apparatus (step S902).

  Then, the control device 101 determines whether or not the calculated solar altitude A is equal to or greater than a predetermined angle X (step S903). Here, when the solar altitude A is less than the predetermined angle X (step S903: No), the control device 101 waits for a predetermined time (step S904) and returns to step S902. The certain time is, for example, about 1 minute to 1 hour.

  On the other hand, when the solar altitude A is equal to or greater than the predetermined angle X (step S903: Yes), the control device 101 obtains the reference image RP for the first and second cameras C1, C2 at a time interval t. Is changed to the second time interval t2 (step S905). Then, the control device 101 waits for a certain time (step S906).

  Next, based on the acquired position information of the own device, the solar altitude A at the current date and time is calculated (step S907). Then, the control device 101 determines whether or not the calculated solar altitude A is less than a predetermined angle X (step S908). Here, when the solar altitude A is equal to or greater than the predetermined angle X (step S908: No), the control device 101 returns to step S906.

  On the other hand, when the solar altitude A is less than the predetermined angle X (step S908: Yes), the control apparatus 101 sets the time interval t for acquiring the reference image RP to the first and second cameras C1 and C2. An instruction is given to change to the first time interval t1 (step S909), and the series of processing according to this flowchart ends.

  Thereby, according to the solar altitude A at the current date and time, the time interval t at which the first and second cameras C1 and C2 obtain the reference image RP can be controlled.

<Second interval control processing procedure>
FIG. 10 is a flowchart illustrating an example of the second interval control processing procedure of the control apparatus 101. In the flowchart of FIG. 10, first, the control device 101 acquires the position information of its own device (step S1001). Next, the control device 101 calculates a time series change of the solar altitude A based on the acquired position information of the device itself, starting from midnight on the current day and using the date and time at regular intervals as the observation time ( Step S1002).

  Then, the control device 101 specifies the sunrise / sunset time based on the time-series change of the calculated solar altitude A (step S1003). Next, the control device 101 determines whether or not the current date and time is the sunrise time (step S1004). Here, the control apparatus 101 waits for the current date and time to be the sunrise time (step S1004: No).

  If the current date and time is the sunrise time (step S1004: Yes), the control apparatus 101 sets the time interval t for acquiring the reference image RP to the first and second cameras C1 and C2, and the second time interval t. An instruction is given to change to the time interval t2 (step S1005).

  Next, the control device 101 determines whether or not the current date and time has become the sunset time (step S1006). Here, the control device 101 waits for the current date and time to be the sunset time (step S1006: No).

  If the current date and time is the sunset time (step S1006: Yes), the control apparatus 101 sets the time interval t for acquiring the reference image RP to the first and second cameras C1 and C2 as the first time interval. An instruction is given to change to the time interval t1 (step S1007), and the series of processing according to this flowchart ends.

  Thereby, the time interval t at which the first and second cameras C1, C2 acquire the reference image RP can be controlled according to the sunrise / sunset time of the day. In step S1004, the control apparatus 101 may determine whether or not the current date and time is a predetermined time before the sunrise time. In step S1006, the control apparatus 101 may determine whether or not the current date and time is a time when a predetermined time has elapsed from the sunset time.

<Reference image acquisition processing procedure>
Next, the reference image acquisition processing procedure of the control apparatus 101 will be described.

  FIG. 11 is an explanatory diagram illustrating an example of a reference image acquisition processing procedure of the control device 101. In FIG. 11, the control apparatus 101 determines whether or not the reference image RP captured by the first or second camera C1, C2 has been acquired (step S1101). Here, the control apparatus 101 waits for acquisition of the reference image RP (step S1101: No).

  When the reference image RP is acquired (step S1101: Yes), the control device 101 specifies the camera ID from which the acquired reference image RP is acquired (step S1102). Then, the control apparatus 101 registers the acquired reference image RP in association with the specified camera ID of the acquisition source in the reference image DB 300 (step S1103), and ends the series of processes according to this flowchart.

  Thereby, it is possible to acquire the reference image RP that is captured by the first and second cameras C1 and C2 at the time interval t and sequentially output, and can be registered in the reference image DB 300 in a state where the acquisition source can be determined.

<Door control processing procedure>
Next, the door control processing procedure of the control device 101 will be described.

  FIG. 12 is a flowchart illustrating an example of a door control processing procedure of the control device 101. In the flowchart of FIG. 12, first, the control device 101 determines whether or not the captured image P is acquired from the second camera C2 (step S1201). Here, the control apparatus 101 waits for acquiring the captured image P from the second camera C2 (step S1201: No).

  And when the captured image P is acquired from the 2nd camera C2 (step S1201: Yes), the control apparatus 101 judges whether the captured image P was acquired from the 1st camera C1 (step S1202). Here, the control apparatus 101 waits for acquiring the captured image P from the first camera C1 (step S1202: No).

  And when the captured image P is acquired from the 1st camera C1 (step S1202: Yes), the control apparatus 101 detects the capture target number N1 based on the captured image P acquired from the 1st camera C1. Processing is executed (step S1203). A specific processing procedure of the first detection process will be described later with reference to FIG.

  Next, the control apparatus 101 performs the 2nd detection process which detects the capture object number N2 based on the captured image P acquired from the 2nd camera C2 (step S1204). The specific processing procedure of the second detection process is the same as that of the first detection process, and thus illustration and description thereof are omitted.

Then, the control device 101 determines whether or not the capture target number N2 is greater than or equal to the threshold value _Nmax (step S1205). Here, when the capture target number N2 is equal to or greater than the threshold _Nmax (step S1205: Yes), the control device 101 proceeds to step S1207. On the other hand, when the capture target number N2 is less than the threshold _Nmax (step S1205: No), the control device 101 determines that the value (N2 / N1) obtained by dividing the capture target number N2 by the capture target number N1 is a predetermined ratio R. It is determined whether or not it exceeds (step S1206).

  Here, when the predetermined ratio R is not exceeded (step S1206: No), the control device 101 returns to step S1201. On the other hand, when the predetermined ratio R is exceeded (step S1206: Yes), the control device 101 controls the operation device 112 of the door 111 of the box basket 110 to perform the control to close the door 111 (step S1207).

  Next, the control apparatus 101 generates a capture notification indicating that the capture target animal has been captured (step S1208). Then, the control device 101 transmits the generated capture notification to a predetermined notification destination (step S1209), and ends a series of processes according to this flowchart.

  Thereby, the door 111 of the box cage 110 can be closed when the animal to be captured that exceeds a predetermined ratio R of the animals to be captured that have appeared around the box cage 110 enters the box cage 110.

<First detection processing procedure>
Next, a specific processing procedure of the first detection processing in step S1203 shown in FIG. 12 will be described.

  FIG. 13 is a flowchart illustrating an example of a specific processing procedure of the first detection process. In the flowchart of FIG. 13, first, the control device 101 sets the capture target number N1 to “N = 0” (step S1301). Then, the control device 101 acquires, from the reference image DB 300, the reference image RP of the latest imaging date and time among the reference images RP corresponding to the camera ID of the first camera C1 (step S1302).

Next, the control apparatus 101 compares the captured image P acquired in step S1202 shown in FIG. 12 with the reference image RP, and extracts a difference area between the captured image P and the reference image RP (step S1303). Then, the control device 101 determines whether or not the area S of the extracted difference area is _{equal to} or greater than the threshold value S _Th (step S1304).

Here, when the area S of the difference region is less than the threshold value S _Th (step S1304: No), the control device 101 proceeds to step S1307. On the other hand, when the area S of the difference region is equal to or _larger than the threshold S _Th (step S1304: Yes), the control device 101 determines whether or not the shape of the difference region is compatible with the body model corresponding to the capture target animal ( Step S1305).

  Here, when it matches with a body model (step S1305: Yes), the control apparatus 101 detects a difference area | region as a capture object animal, and increments capture object N1 (step S1306). Then, the control device 101 determines whether there is an unextracted difference area that has not been extracted from the captured image P (step S1307).

  If there is an unextracted difference area (step S1307: YES), the control apparatus 101 returns to step S1303 and extracts an unextracted difference area from the captured image P. On the other hand, when there is no unextracted difference area (step S1307: No), the control apparatus 101 returns to the step that called the first detection process.

  In step S1305, if the body model does not fit (step S1305: No), the control device 101 determines whether or not there is a recess in the outer shape of the difference area (step S1308). If there is no recess (step S1308: No), the control device 101 proceeds to step S1307.

  On the other hand, when a recessed part exists (step S1308: Yes), the control apparatus 101 divides | segments a difference area | region based on the position of a recessed part (step S1309). Then, the control device 101 detects each divided region obtained by dividing the difference region as a capture target animal, counts up the capture target N1 by the number of divided regions (step S1310), and calls the first detection process. Return.

  Thereby, the capture target number N1 representing the total number of capture target animals appearing around the box cage 110 can be detected from the captured image (captured image P, reference image RP) captured by the first camera C1.

  As described above, according to the control device 101 according to the embodiment, the time for acquiring the reference image RP according to the solar altitude A or according to the sunrise time and / or the sunset time and the time information. The interval t can be controlled.

  Thereby, the acquisition interval of the reference image RP can be shortened in a time zone in which the brightness changes due to environmental changes such as sunlight and weather. As a result, the time difference between the imaging timings of the reference image RP and the captured image P becomes small, and it becomes possible to compare images captured in the same environment (the smaller the time difference is, the less the environmental change is). A decrease in detection accuracy of the target animal can be suppressed.

  Further, according to the control device 101, the solar altitude A is calculated based on the position information indicating the installation position of the box cage 110 and the time information, and when the calculated solar altitude A is less than the predetermined angle X, In addition, it is possible to control to change the time interval t to the first time interval t1. Further, according to the control device 101, when the calculated solar altitude A is equal to or greater than the predetermined angle X, the control is performed to change the time interval t to the second time interval t2 shorter than the first time interval t1. Can do.

  Thereby, for example, by setting the predetermined angle X to “0 °”, the reference image RP in the time zone from sunrise to sunset, that is, the time zone in which the change in brightness due to environmental changes such as sunlight and weather becomes intense. The acquisition interval can be shortened. In addition, for example, by setting the predetermined angle X to “−5 °”, it becomes brighter just before sunset, or brighter for a while after sunset, so that it is bright for a while after sunset. It is possible to shorten the acquisition interval of the reference image RP in a time period until a little later. Further, in the time zone after sunset when the environmental change such as sunshine and weather becomes small, the acquisition interval of the reference image RP can be increased, and the first and second cameras C1 and C2 can capture and output the reference image RP. This processing load can be reduced to save power.

  Moreover, according to the control apparatus 101, control which changes the time interval t to the 1st time interval t1 according to the present date and time becoming the sunset time can be performed. Further, according to the control device 101, it is possible to perform control to change the time interval t to the second time interval t2 shorter than the first time interval t1 in response to the current date and time being the sunrise time.

  Accordingly, the time interval t is switched from the first time interval t1 to the second time interval t2 in accordance with the sunrise time of the day, and the acquisition interval of the reference image RP can be shortened. Further, the time interval t can be switched from the second time interval t2 to the first time interval t1 in accordance with the sunset time of the day, and the reference image RP acquisition interval can be lengthened.

  Further, according to the control device 101, the time interval t is set to the first time in response to the current date and time being a predetermined time after the sunset time (for example, after the elapse of about 30 minutes to 1 hour). Control to change to the interval t1 can be performed. Moreover, according to the control apparatus 101, the control which changes the time interval t to the 2nd time interval t2 shorter than the 1st time interval t1 according to the present date and time becoming the time before the predetermined time of the sunrise time. It can be performed.

  Thereby, the acquisition interval of the reference image RP can be shortened by switching the time interval t from the first time interval t1 to the second time interval t2 in accordance with the time when the area around the sunrise becomes brighter. In addition, the time interval t can be switched from the second time interval t2 to the first time interval t1 in accordance with the time when the surroundings become dark a little after the sunset, thereby increasing the acquisition interval of the reference image RP.

  Therefore, according to the box cage control system 100 according to the embodiment, erroneous detection of the animal to be captured due to the influence of environmental changes such as sunlight and weather is prevented, and the animal to be captured is efficiently captured by the box cage 110. It can be captured and damage caused by pests can be reduced.

  Note that the box cage control method described in the present embodiment can be realized by executing a program prepared in advance on a computer such as a personal computer or a workstation. The main box control program is recorded on a computer-readable recording medium such as a hard disk, a flexible disk, a CD-ROM, an MO, and a DVD, and is executed by being read from the recording medium by the computer. Further, the book box control program may be distributed via a network such as the Internet.

  The following additional notes are disclosed with respect to the embodiment described above.

(Supplementary note 1) According to the comparison between the captured image obtained by imaging the box and the reference image captured at the imaging timing before the imaging timing of the captured image, the capture target that has entered the box A box carton control system that performs detection,
A control unit for controlling a time interval for acquiring the reference image according to the altitude of the sun;
Box control system characterized by including.

(Additional remark 2) The said box reed has the reed shape which can observe an inside from the outside, The box reed control system of Additional remark 1 characterized by the above-mentioned.

(Appendix 3) The control unit
Based on the position information and the time information indicating the installation position of the box cage, the solar altitude is calculated,
When the calculated solar altitude is less than a predetermined angle, the time interval is changed to a first time interval. When the calculated solar altitude is equal to or greater than the predetermined angle, the time interval is changed to the first time interval. The box reed control system according to appendix 1 or 2, characterized in that control is performed to change to a second time interval shorter than one time interval.

(Supplementary Note 4) According to a comparison between a captured image obtained by capturing the box cage and a reference image captured at an imaging timing before the imaging timing of the captured image, A box carton control system that performs detection,
A control unit for controlling a time interval for acquiring the reference image according to a sunrise time and / or a sunset time and time information;
Box control system characterized by including.

(Supplementary Note 5) The control unit
The time interval is changed to a first time interval in response to the current date and time being the sunset time, and the time interval is changed from the first time interval in response to the current date and time being the sunrise time. The box reed control system according to appendix 4, wherein control is performed to change to a short second time interval.

(Appendix 6) The control unit
In response to the current date and time being a predetermined time after the sunset time, the time interval is changed to the first time interval, and in response to the current date and time being a predetermined time before the sunrise time. The box reed control system according to appendix 4, wherein control is performed to change the time interval to a second time interval shorter than the first time interval.

(Supplementary note 7) According to a comparison between a captured image obtained by imaging the box and a reference image captured at an imaging timing before the imaging timing of the captured image, A control device for performing detection,
Controlling the time interval for acquiring the reference image according to the altitude of the sun,
A control device comprising a control unit.

(Supplementary note 8) According to a comparison between a captured image obtained by capturing the box cage and a reference image captured at an imaging timing before the imaging timing of the captured image, A control device for performing detection,
Controlling the time interval for acquiring the reference image according to the sunrise time and / or sunset time and time information;
A control device comprising a control unit.

(Supplementary note 9) According to a comparison between a captured image obtained by capturing the box cage and a reference image captured at an imaging timing earlier than the imaging timing of the captured image, The computer that performs the detection
Controlling the time interval for acquiring the reference image according to the altitude of the sun,
A box cage control method characterized by executing processing.

(Supplementary Note 10) According to a comparison between a captured image obtained by imaging the box and a reference image captured at an imaging timing before the imaging timing of the captured image, The computer that performs the detection
Controlling the time interval for acquiring the reference image according to the sunrise time and / or sunset time and time information;
A box cage control method characterized by executing processing.

(Supplementary Note 11) According to a comparison between a captured image obtained by capturing the box cage and a reference image captured at an imaging timing before the imaging timing of the captured image, On the computer that performs the detection,
Controlling the time interval for acquiring the reference image according to the altitude of the sun,
A box cage control program characterized by executing processing.

(Supplementary Note 12) According to a comparison between a captured image obtained by capturing the box cage and a reference image captured at an imaging timing earlier than the imaging timing of the captured image, On the computer that performs the detection,
Controlling the time interval for acquiring the reference image according to the sunrise time and / or sunset time and time information;
A box cage control program characterized by executing processing.

DESCRIPTION OF SYMBOLS 100 Box cage control system 101 Control apparatus 110 Box cage 111 Door 112 Actuator 200 Bus 201 CPU
202 Memory 203 I / F
204 Disc drive 205 Disc 206 GPS unit 300 Reference image DB
300-1 to 300-4 Reference image information 401 Acquisition unit 402 Interval control unit 403 Detection unit 404 Determination unit 405 Door control unit 406 Notification unit 510, 520, 530 Difference area 700 Capture notification C1 First camera C2 Second camera P Imaging Image R1, R2 Imaging range RP Reference image

Claims (11)

A box that detects a capture target that has entered the box cage in accordance with a comparison between a captured image obtained by imaging the box basket and a reference image captured at an imaging timing before the imaging timing of the captured image.罠 control system,
A control unit for controlling a time interval for acquiring the reference image according to the altitude of the sun;
Box control system characterized by including.   2. The box kite control system according to claim 1, wherein the box kite has a bowl shape that allows internal observation from the outside. The controller is
Based on the position information and the time information indicating the installation position of the box cage, the solar altitude is calculated,
When the calculated solar altitude is less than a predetermined angle, the time interval is changed to a first time interval. When the calculated solar altitude is equal to or greater than the predetermined angle, the time interval is changed to the first time interval. 3. The box basket control system according to claim 1, wherein control is performed to change to a second time interval shorter than one time interval. A box that detects a capture target that has entered the box cage in accordance with a comparison between a captured image obtained by imaging the box basket and a reference image captured at an imaging timing before the imaging timing of the captured image.罠 control system,
A control unit for controlling a time interval for acquiring the reference image according to a sunrise time and / or a sunset time and time information;
Box control system characterized by including. The controller is
The time interval is changed to a first time interval in response to the current date and time being the sunset time, and the time interval is changed from the first time interval in response to the current date and time being the sunrise time. 5. The box basket control system according to claim 4, wherein control is performed to change to a short second time interval. Control for detecting a capture target that has entered the box cage in accordance with a comparison between a captured image obtained by imaging the box basket and a reference image captured at an imaging timing before the imaging timing of the captured image. A device,
Controlling the time interval for acquiring the reference image according to the altitude of the sun,
A control device comprising a control unit. Control for detecting a capture target that has entered the box cage in accordance with a comparison between a captured image obtained by imaging the box basket and a reference image captured at an imaging timing before the imaging timing of the captured image. A device,
Controlling the time interval for acquiring the reference image according to the sunrise time and / or sunset time and time information;
A control device comprising a control unit. A computer that detects a captured object that has entered the box cage in accordance with a comparison between a captured image obtained by imaging the box basket and a reference image captured at an imaging timing before the imaging timing of the captured image. But,
Controlling the time interval for acquiring the reference image according to the altitude of the sun,
A box cage control method characterized by executing processing. A computer that detects a captured object that has entered the box cage in accordance with a comparison between a captured image obtained by imaging the box basket and a reference image captured at an imaging timing before the imaging timing of the captured image. But,
Controlling the time interval for acquiring the reference image according to the sunrise time and / or sunset time and time information;
A box cage control method characterized by executing processing. A computer that detects a captured object that has entered the box cage in accordance with a comparison between a captured image obtained by imaging the box basket and a reference image captured at an imaging timing before the imaging timing of the captured image. In addition,
Controlling the time interval for acquiring the reference image according to the altitude of the sun,
A box cage control program characterized by executing processing. A computer that detects a captured object that has entered the box cage in accordance with a comparison between a captured image obtained by imaging the box basket and a reference image captured at an imaging timing before the imaging timing of the captured image. In addition,
Controlling the time interval for acquiring the reference image according to the sunrise time and / or sunset time and time information;
A box cage control program characterized by executing processing.

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