JP2018168679A - Shovel, and shovel management server - Google Patents

Abstract

To provide a shovel which enables more information for tracking a stolen shovel, a criminal which steals the shovel, and the like when the shovel is stolen to be acquired.SOLUTION: A shovel includes a photographing device 40 which photographs the periphery of a shovel 100 when the shovel 100 is stolen. A management server 200 connected to be communicable with the shovel 100 having the photographing device 40 which photographs the periphery of the shovel 100 when the shovel 100 is stolen includes a communication processing section 201 which receives a photographed image of the photographing device 40 from the shovel 100.SELECTED DRAWING: Figure 2

Description

  The present invention relates to an excavator and the like.

  Conventionally, an excavator having a theft monitoring function for determining occurrence of theft and imaging the interior of the cabin with a camera is known (see, for example, Patent Document 1).

JP 2008-248657 A

  However, there is little information that can be obtained with only the captured image inside the cabin, for example, there is a case where it is not possible to obtain enough information to track a shovel that has been stolen from the scene or a criminal who has stolen the shovel. obtain.

  Therefore, in view of the above problems, an object of the present invention is to provide a shovel capable of acquiring more information in order to track a stolen shovel and a criminal who steals the shovel when a theft occurs. .

In order to achieve the above object, in one embodiment of the present invention,
Comprising an imaging device for imaging the periphery of the shovel when the shovel is stolen;
An excavator is provided.

In another embodiment of the present invention,
An excavator management server that is communicably connected to an excavator that includes an imaging device that captures the periphery of the excavator when the shovel is stolen.
An image receiving unit that receives a captured image of the imaging device from the excavator;
An excavator management server is provided.

  According to the above-described embodiment, it is possible to provide a shovel capable of tracking a stolen shovel, a criminal who steals the shovel, and the like when the theft occurs.

It is a figure which shows an example of a working machine. It is a figure which shows an example of a structure of a theft monitoring system. It is a flowchart which shows roughly the 1st example of the process by a theft monitoring controller. It is a figure explaining the effect | action by a theft monitoring system. It is a flowchart which shows schematically the 2nd example of the process by a theft monitoring controller. It is a flowchart which shows roughly the 3rd example of the process by a theft monitoring controller. It is a flowchart which shows an example of the process by a management server roughly.

  Hereinafter, embodiments for carrying out the invention will be described with reference to the drawings.

  First, with reference to FIG. 1, a work machine on which a theft monitoring system 1000 (see FIG. 2) according to the present embodiment is mounted will be described.

  FIG. 1 is a diagram illustrating an example of a work machine included in the theft monitoring system 1000 according to the present embodiment. Specifically, FIG. 1 is a side view of the excavator 100.

  The theft monitoring system 1000 according to the present embodiment may be mounted on any work machine other than the excavator 100, such as a wheel loader or an asphalt finisher.

  An excavator 100 according to the present embodiment includes a lower traveling body 1, an upper revolving body 3 that is mounted on the lower traveling body 1 so as to be able to swivel via a turning mechanism 2, a boom 4, an arm 5, and a bucket as work devices. 6 and a cabin 10 on which an operator boards.

  The lower traveling body 1 includes, for example, a pair of left and right crawlers, and each crawler is self-propelled by being hydraulically driven by a traveling hydraulic motor (not shown).

  The upper swing body 3 rotates with respect to the lower traveling body 1 by being driven by a swing hydraulic motor, an electric motor (both not shown) or the like.

  The boom 4 is pivotally attached to the center of the front part of the upper swing body 3 so that the boom 4 can be raised and lowered. An arm 5 is pivotally attached to the tip of the boom 4 and a bucket 6 is vertically attached to the tip of the arm 5. It is pivotally attached so that it can rotate. The boom 4, the arm 5, and the bucket 6 are hydraulically driven by a boom cylinder 7, an arm cylinder 8, and a bucket cylinder 9, respectively.

  The cabin 10 is a cockpit where an operator is boarded, and is mounted on the front left side of the upper swing body 3.

  The engine 11 rotates at a constant rotational speed under the control of an engine control module 32 described later, and supplies hydraulic oil to the traveling hydraulic motor, the swing hydraulic motor, the boom cylinder 7, the arm cylinder 8, the bucket cylinder 9, and the like. A pump (not shown) is driven.

  In addition, the excavator 100 according to the present embodiment includes a peripheral monitoring controller 30, a security controller 31, an engine control module (ECM) 32, a theft monitoring controller 33, and an imaging device as components related to the theft monitoring system 1000. 40 and a display device 50.

  The periphery monitoring controller 30 is a control device that performs control processing related to the periphery monitoring function during operation of the excavator. For example, the periphery monitoring controller 30 is mounted in the cabin 10.

  The security controller 31 is a control device that performs control processing related to a security function (theft prevention function) while the excavator is stopped. For example, the security controller 31 is mounted in the cabin 10.

  The ECM 32 is a control device that performs control processing of the engine 11. For example, the ECM 32 is mounted in the cabin 10.

  The theft monitoring controller 33 is a control device that performs control processing related to a monitoring function for the presence / absence of theft of the excavator 100 and a monitoring function for a situation after theft. For example, the theft monitoring controller 33 is mounted in the cabin 10.

  The imaging device 40 is attached to the upper part of the upper swing body 3 and images the periphery of the excavator 100. The imaging device 40 includes a rear camera 40B, a left side camera 40L, and a right side camera 40R.

  Note that some or all of the functions of the peripheral monitoring controller 30, the security controller 31, the ECM 32, and the theft monitoring controller 33 may be realized by a single controller. Further, the functions of the peripheral monitoring controller 30 and the theft monitoring controller 33 that process the captured image from the imaging device 40 are built in the imaging device 40, that is, the rear camera 40B, the left camera 40L, and the right camera 40R. May be.

  The rear camera 40 </ b> B is attached to the upper part of the rear end of the upper swing body 3 and images the rear of the upper swing body 3.

  The left side camera 40L is attached to the upper left end of the upper swing body 3 and images the left side of the upper swing body 3.

  The right side camera 40R is attached to the upper right end of the upper swing body 3 and images the right side of the upper swing body 3.

  The display device 50 is provided in the vicinity of the cockpit in the cabin 10, specifically, at a position that can be easily seen by an operator sitting on the cockpit, and displays various image information notified to the operator. The display device 50 is, for example, a liquid crystal display.

  Next, the theft monitoring system 1000 according to the present embodiment will be described with reference to FIG.

  FIG. 2 is a block diagram showing an example of the configuration of the theft monitoring system 1000 according to the present embodiment.

  The theft monitoring system 1000 monitors whether or not the excavator 100 is stolen while the excavator 100 is stopped. When the excavator 100 is stolen, the theft monitoring system 1000 monitors the surrounding situation after the theft has occurred. Hereinafter, the function of the theft monitoring system 1000 is referred to as a theft monitoring function. The theft monitoring system 1000 includes an excavator 100, a management server 200, and a terminal 300 of a user (operator, administrator, owner, etc.) of the excavator 100.

  As described above, the excavator 100 includes the periphery monitoring controller 30, the security controller 31, the ECM 32, the theft monitoring controller 33, the imaging device 40, and the display device 50.

  As described above, the periphery monitoring controller 30 performs control processing related to the periphery monitoring function for monitoring the monitoring target in the vicinity of the shovel 100 during the operation of the shovel 100. The function of the peripheral monitoring controller 30 may be realized by arbitrary hardware, software, or a combination thereof. For example, a CPU (Central Processing Unit), a RAM (Random Access Memory), a ROM (Read Only Memory), an I / O It is composed mainly of a microcomputer including O (Input-Output interface). The same applies to the security controller 31, ECM 32, and theft monitoring controller 33. The peripheral monitoring controller 30 includes, for example, a monitoring target detection unit 301, a monitoring image display processing unit 302, an image transmission unit 303, an image determination unit as functional units realized by executing various programs stored in the ROM on the CPU. Part 304.

  The peripheral monitoring controller 30 is connected to a battery (not shown) as a power source via a relay 30R.

  When an unillustrated ignition switch (IG switch) of the excavator 100 is turned on, the relay 30R shifts from the cutoff state to the connected state. That is, the periphery monitoring controller 30 starts and starts the power supply from the battery in response to the ON operation of the IG switch corresponding to the start of the operation of the excavator 100, and the OFF operation of the IG switch corresponding to the end of the operation of the excavator 100. Accordingly, the power supply from the battery is terminated and stopped.

  Further, the relay 30R can maintain the connection state in accordance with an ON signal (ON voltage) from the theft monitoring controller 33 as described later while the excavator 100 is stopped. That is, the peripheral monitoring controller 30 continues to supply power from the battery in response to the output of the ON signal from the theft monitoring controller 33 to the relay 30R even when the IG switch of the excavator 100 is turned off.

  As described above, the security controller 31 performs control processing related to the security function (theft prevention function) of the excavator 100 while the excavator 100 is stopped. For example, when the security function is activated (that is, when the security function is turned on), the security controller 31 performs authentication processing of a user (operator, administrator, etc.), and when the authentication is successful, Processing such as operation, that is, permission to start the engine 11 is performed. For the authentication process, for example, any method such as verification by input of ID and password, challenge response authentication using an electronic key, or the like may be employed. On the other hand, when the excavator is operated, that is, when the engine 11 is started without passing through the normal authentication process, the security controller 31 determines that the state is abnormal and indicates to the theft monitoring controller 33 the abnormality. Send a signal. In other words, the security controller 31 transmits to the theft monitoring controller 33 an abnormal signal indicating that the excavator has been operated without going through a process defined in advance by the security function.

  The security controller 31 is communicably connected to the theft monitoring controller 33 via a LAN (Local Area Network) based on an arbitrary communication protocol such as CAN (Controller Area Network) or Ethernet (registered trademark).

  The ECM 32 performs control processing of the engine 11 as described above. Further, when the engine 11 is started, the ECM 32 transmits a signal (engine start signal) indicating that to the theft monitoring controller 33.

  The ECM 32 is communicably connected to the theft monitoring controller 33 via a LAN based on a communication protocol such as CAN or Ethernet.

  As described above, the theft monitoring controller 33 performs processing related to monitoring whether the shovel 100 has been stolen and monitoring the situation after the theft has occurred. The theft monitoring controller 33 is connected to the management server via the outside of the excavator 100 and a predetermined network NW1 (for example, a mobile phone network or the Internet network having a base station as a terminal, the same applies to the network NW2 described later). An antenna 33 </ b> A capable of communicating with 200 is connected. The theft monitoring controller 33 includes a theft occurrence determination unit 331, a monitoring command unit 332, a storage processing unit 333, and a transmission processing unit 334 as functional units realized by executing one or more programs stored in the ROM on the CPU. including. The theft monitoring controller 33 includes a storage unit 339 as a storage area defined in the internal memory.

  As described above, the imaging device 40 includes the rear camera 40B, the left camera 40L, and the right camera 40R. The rear camera 40B, the left side camera 40L, and the right side camera 40R are mounted on the upper part of the upper swing body 3 so that the optical axis is obliquely downward, and a part of the body of the excavator 100, that is, the upper swing body 3 It has a relatively wide up-and-down imaging range, that is, an angle of view, including a part of the house part and the ground near the shovel 100 to a distance from the shovel 100. Thereby, since it is possible to reliably capture an image of a monitoring target that has entered a region close to the excavator 100 (a monitoring area described later), the monitoring target detection unit 301 described later can reliably detect the monitoring target in the monitoring area. Can do. The rear camera 40B, the left side camera 40L, and the right side camera 40R each output a captured image and transmit it to the periphery monitoring controller 30 at predetermined intervals (for example, 1/30 seconds).

  The rear camera 40B, the left side camera 40L, and the right side camera 40R are connected to a battery (not shown) as a power source via relays 40RB, 40RL, and 40RR, respectively, similarly to the peripheral monitoring controller 30.

  Relays 40RB, 40RL, and 40RR shift from the disconnected state to the connected state when the IG switch of excavator 100 is turned on. That is, the rear camera 40B, the left side camera 40L, and the right side camera 40R are started by supplying power from the battery in response to the ON operation of the IG switch corresponding to the start of operation of the excavator 100, and the excavator 100 is operated. In response to the OFF operation of the IG switch corresponding to the end, the power supply from the battery ends and stops.

  Further, the relays 40RB, 40RL, and 40RR shift from the cut-off state to the connected state in response to an ON signal (ON voltage) from the theft monitoring controller 33 while the excavator 100 is stopped, as will be described later. That is, the rear camera 40B, the left side camera 40L, and the right side camera 40R start and start power supply from the battery in response to the ON signal from the theft monitoring controller 33 even when the excavator 100 is stopped. .

  The display device 50 displays a monitoring image representing the state of the periphery of the excavator 100 under the control of the periphery monitoring controller 30 (specifically, the monitoring image display processing unit 302). The monitoring image includes a captured image (through image) of the imaging device 40 and a peripheral image (for example, a peripheral image generated based on the captured image of the imaging device 40 by the peripheral monitoring controller 30 (specifically, the monitoring image display processing unit 302). , Viewpoint conversion image) and the like.

  The monitoring target detection unit 301 detects a predetermined monitoring target around the excavator 100. The monitoring targets are, for example, people, work vehicles (trucks), other obstacles, and the like. Specifically, the monitoring target detection unit 301 detects a monitoring target in a predetermined area (hereinafter referred to as “monitoring area”) around the excavator 100 based on the captured image captured by the imaging device 40. For example, the monitoring target detection unit 301 recognizes a monitoring target such as a person or a track in a captured image of the imaging device 40 by arbitrarily applying various known image processing methods, machine learning-based classifiers, and the like. The real position of the recognized person (the distance from the excavator 100 to the monitored object, the direction seen from the excavator 100, etc.) can be specified.

  The monitoring image display processing unit 302 causes the display device 50 to display a monitoring image representing the state of the periphery of the excavator 100 in accordance with various operations by the operator.

  For example, the monitoring image display processing unit 302 displays captured images (through images) of the imaging device 40, that is, the rear camera 40B, the left side camera 40L, and the right side camera 40R, as a monitoring image, according to a predetermined operation by the operator. It is displayed on the device 50 as it is. At this time, the monitoring image display processing unit 302 displays a captured image of one of the rear camera 40B, the left-side camera 40L, and the right-side camera 40R according to the content of the operation by the operator, the setting content, and the like. 50, or images taken by a plurality of (two or three) cameras may be simultaneously displayed on the display device 50.

  Further, for example, the monitoring image display processing unit 302 generates a peripheral image (for example, a viewpoint conversion image) by performing a predetermined process based on the captured image of the imaging device 40 in accordance with a predetermined operation by the operator, and displays the peripheral image. It is displayed on the device 50. Specifically, the monitoring image display processing unit 302 performs a known viewpoint conversion process on the basis of the captured images of the rear camera 40B, the left camera 40L, and the right camera 40R as peripheral images, thereby converting the viewpoint conversion image. (Image viewed from a virtual viewpoint) is generated and displayed on the display device 50. At this time, the monitoring image display processing unit 302 may generate a peripheral image from the captured images of one of the rear camera 40B, the left side camera 40L, and the right side camera 40R and display the peripheral image on the display device 50. A peripheral image may be generated from captured images of a plurality of (two or three) cameras and displayed on the display device 50.

  The image transmission unit 303 sequentially inputs images from the imaging device 40 (the rear camera 40B, the left side camera 40L, and the right side camera 40R) in accordance with a monitoring command transmitted from the theft monitoring controller 33 to the periphery monitoring controller 30. The image is transmitted to the theft monitoring controller 33.

  The image discriminating unit 304 (an example of a recognizing unit), for example, similarly to the monitoring target detecting unit 301 described above, arbitrarily applies various known image processing methods, machine learning-based discriminators, and the like, thereby It is determined whether or not the captured image is a storage target in the theft monitoring controller 33. For example, the image determination unit 304 determines whether or not a person or a track is reflected (included) in the captured image of the imaging device 40, and if it is reflected, determines the captured image as a storage target. The image discriminating unit 304 gives discrimination result information to each data of the captured image input from the imaging device 40, and the image transmission unit 303 sends the captured image to which the information has been added to the theft monitoring controller 33. Send.

  Note that when all the captured images are to be stored in the theft monitoring controller 33, the image determination unit 304 may be omitted.

  The theft occurrence determination unit 331 determines whether or not the shovel 100 has been stolen. A method for determining whether the shovel 100 has been stolen may be arbitrary. For example, the theft occurrence determination unit 331 may determine that the shovel 100 has been stolen when an abnormal signal is received from the security controller 31 that manages the security function (theft prevention function) of the shovel 100. Further, for example, when the engine start signal is received from the ECM 32, the theft occurrence determination unit 331, when communication with the security controller 31 is interrupted despite the security function being turned on, that is, When the security controller 31 is removed, it may be determined that the excavator 100 has been stolen.

  The monitoring command unit 332 outputs an ON signal to the relays 30R, 40RB, 40RL, and 40RR when the theft occurrence determining unit 331 determines that the excavator 100 has been stolen, and the captured image of the imaging device 40 to the periphery monitoring controller 30. Send a monitoring command requesting the transmission of.

  The storage processing unit 333 performs processing for storing the captured image of the imaging device 40 transmitted from the periphery monitoring controller 30 in the storage unit 339.

  The transmission processing unit 334 (an example of a transmission unit) controls the antenna 33A and performs processing for transmitting the captured image of the imaging device 40 to the management server 200 via the network NW1.

  The management server 200 (an example of the excavator management server) is communicably connected to the excavator 100 and manages various states of the excavator 100 based on bidirectional communication with the excavator 100. The management server 200 may be configured with arbitrary hardware, software, or a combination thereof. For example, the management server 200 is configured around one or more server computers including a CPU, RAM, ROM, and I / O. . The management server 200 includes a communication processing unit 201, a storage processing unit 202, a theft occurrence notification unit 203, and an image transmission unit 204 as functional units realized by one or more programs stored in the ROM of the server computer. In addition, the management server 200 includes a storage unit 209 as a storage area defined in a storage device included in the server computer.

  A communication processing unit 201 (an example of an image receiving unit and a response receiving unit) controls a predetermined communication device (not shown), and performs various operations with the excavator 100, the terminal 300, and the like through predetermined networks NW1, NW2, and the like. Send and receive signals. For example, the communication processing unit 201 receives a captured image of the imaging device 40 transmitted from the excavator 100. For example, the communication processing unit 201 receives a response to an inquiry, which will be described later, transmitted from the terminal 300.

  When the communication processing unit 201 receives the captured image of the imaging device 40 from the excavator 100, the storage processing unit 202 performs processing for storing in the storage unit 209.

  The theft occurrence notification unit 203 (an example of a notification unit) notifies the occurrence of theft in the shovel 100 (theft) via the communication processing unit 201 when the communication processing unit 201 receives a captured image of the imaging device 40 from the shovel 100. The occurrence notification) is transmitted to the terminal 300. At this time, the theft occurrence notification unit 203 inquires whether transmission of a captured image of the imaging device 40 is necessary or not by a theft occurrence notification. The transmission format of the notification may be arbitrary, and an arbitrary format such as mail, SNS, push notification by a specific application program (application) installed in the terminal 300 may be adopted.

  When the communication processing unit 201 receives a response indicating that it is necessary to transmit the captured image of the imaging device 40 from the terminal 300, the image transmission unit 204 transmits the response of the imaging device 40 to the terminal 300 via the communication processing unit 201. A captured image is transmitted. For example, the image transmission unit 204 may transmit the captured image to the terminal 300 as a continuous moving image in a streaming format, or a part of the captured image specified in advance or specified by the user of the terminal 300. You may transmit to the terminal 300. FIG.

  The terminal 300 is owned by the user of the excavator 100 as described above. The terminal 300 may be a mobile terminal such as a mobile phone, a smartphone, or a tablet terminal, or may be a stationary terminal such as a desktop computer. The terminal 300 is communicably connected to the management server 200 through the network NW2, and exchanges various signals with the management server 200.

  For example, when receiving the theft occurrence notification including the inquiry content transmitted from the management server 200, the terminal 300 displays the theft occurrence in the excavator 100 on a screen such as a liquid crystal display according to a predetermined operation of the user. At the same time, a question as to whether or not the captured image is transmitted from the management server 200 is displayed.

  Also, the terminal 300 transmits a response to the inquiry to the management server 200 in response to an operation corresponding to the user's answer to the question.

  In addition, when the user's answer to the question is the content that the captured image needs to be transmitted, the terminal 300 transmits the captured image of the imaging device 40 transmitted from the management server 200 in response to a predetermined operation by the user. Is displayed on the screen.

  Next, processing on the shovel 100 side in the theft monitoring system 1000 according to the present embodiment will be described with reference to FIGS.

  First, FIG. 3 is a flowchart schematically showing a first example of processing by the theft monitoring controller 33. The processing according to this flowchart may be repeatedly executed in a situation where the theft occurrence determination unit 331 does not determine that the theft has occurred (that is, a situation where a theft occurrence flag described later is “OFF”). The same applies to FIGS. 5 and 6 below.

  The initial setting of the theft occurrence flag is “OFF”. The same applies to FIGS. 5 and 6 below. Further, once it is determined that the shovel 100 has been stolen, the theft occurrence flag does not change from “ON”. For example, after the stolen shovel 100 is discovered, an external tool or the like is used. , It is initialized, that is, turned off by a service person.

  In step S102, the theft occurrence determination unit 331 determines whether the excavator 100 has been stolen. The theft occurrence determination unit 331 proceeds to step S104 when the shovel 100 is stolen, and ends the current process when the theft has not occurred.

  In step S <b> 104, the monitoring command unit 332 outputs an ON signal (ON voltage) to the relays 30 </ b> R, 40 </ b> RB, 40 </ b> RL, 40 </ b> RR and outputs a monitoring command to the peripheral monitoring controller 30. Thereby, even if the ignition switch of the shovel 100 is in the OFF state, the power supply to the peripheral monitoring controller 30 and the imaging device 40 (rear camera 40B, left camera 40L, right camera 40R) is maintained. Then, the theft occurrence flag is set to “ON”.

  In step S106, the storage processing unit 333 stores the captured image of the imaging device 40 input from the periphery monitoring controller 30 in the storage unit 339 in response to the monitoring command.

  In step S108, the theft monitoring controller 33 determines whether an end condition is satisfied. The termination condition may be, for example, that a predetermined time has elapsed, or that the battery voltage has decreased to a predetermined voltage or less. The theft monitoring controller 33 returns to step S106 if the end condition is not satisfied, repeats the processes of steps S106 and S108, and ends the current process if the end condition is satisfied.

  Thus, in this example, the imaging device 40 images the periphery (external) of the shovel 100 under the control of the theft monitoring controller 33 when the shovel 100 is stolen. As a result, more information can be acquired in order to track the stolen shovel 100 and the criminal who steals the shovel 100. Hereinafter, the action of the excavator according to the present example will be specifically described with reference to FIG.

  FIG. 4 is a diagram for explaining the operation of the theft monitoring system 1000 according to the present embodiment, and specifically shows an example of a scene where the excavator 100 is stolen. More specifically, FIG. 4A is a diagram (side view) showing a state in which the criminal TF has moved the excavator 100 to the rear of the truck TK, that is, a scene immediately before loading the truck TK. FIG. 4B is a diagram (plan view) showing a scene from when the criminal TF loads the excavator 100 on the truck TK until the undercarriage of the excavator 100 is fixed and the excavator 100 enters the truck TK.

  As shown in FIG. 4A, when the excavator 100 is loaded on the truck TK, the excavator 100 is moved backward and loaded on the loading platform of the truck TK. Therefore, the shovel 100 has a shape in which the rear portion thereof faces the rear portion of the track TK in a state immediately before being loaded on the track TK. Therefore, the rear camera 40B attached to the rear part of the upper swing body 3 of the excavator 100 can capture the license plate NP attached to the rear part of the track TK in the imaging range MA, and capture the captured image including the license plate NP. Can be acquired. As a result, for example, the number of the license plate NP can be identified and the criminal TF can be traced based on an image taken out from the storage unit 339 of the excavator 100 that was found later.

  Further, as shown in FIG. 4B, after the excavator 100 is loaded on the loading platform of the truck TK, the criminal TF performs the work of fixing the undercarriage (crawler of the lower traveling body 1) of the excavator 100 to the loading platform. Do. As described above, the rear camera 40B, the left-side camera 40L, and the right-side camera 40R each have an optical axis inclined downward to the extent that a part of the vehicle body of the excavator 100 is reflected, and is close to the excavator 100. It has an angle of view in the vertical direction that can reliably image the range. Therefore, the rear camera 40B, the left side camera 40L, and the right side camera 40R can clearly capture the entire image of the criminal TF that is working in the imaging range MA, and the captured image including the criminal TF. Can be obtained. Thereby, for example, based on the captured image taken out from the storage unit 339 of the excavator 100 discovered at a later date, it is possible to analyze the characteristics of the criminal TF and try to identify the criminal TF.

  The imaging device 40 may be configured to include only one of the left side camera 40L and the right side camera 40R. Preferably, the left side side that images the driver side, that is, the left side of the excavator 100 is preferable. A camera 40L may be provided. Further, the imaging device 40 may further include a front camera that images the front of the excavator 100. Thereby, the criminal TF who performs the operation | work etc. which fix the suspension of the shovel 100 at the rear part of the loading platform of truck TK can be imaged.

  Further, as shown in FIG. 4B, after the excavator 100 is loaded on the loading platform of the truck TK and the undercarriage of the excavator 100 is fixed, the criminal TF (that is, the driver of the truck TK) In the case of a left-hand drive vehicle, turn around the left side) and get into the truck TK from the driver's seat side (see thick solid arrows in the figure). In addition, when there are a plurality of criminal TFs, a person other than the criminal TF driver goes around the opposite side of the truck TK and gets into the truck TK from the passenger seat side (see thick dotted arrows in the figure). Therefore, the left-side camera 40L and the right-side camera 40R can capture the criminal TF who gets into the truck after loading the excavator 100 in the imaging range MA, and the imaging includes the criminal TF who gets into the truck TK. Images can be acquired. Thereby, for example, the characteristic of the criminal TF can be analyzed based on the captured image taken out from the storage unit 339 of the found excavator 100 at a later date, and the criminal TF can be identified.

  Further, when the truck TK loaded with the excavator 100 starts to travel, the rear camera 40B, the left side camera 40L, and the right side camera 40R capture the rear, left side, and right side of the excavator 100 to capture the track. It is possible to acquire a captured image including a state around the road on the front side, the right side, and the left side where the TK travels. Thereby, for example, based on the captured image taken out from the storage unit 339 of the excavator 100 that was found later, the criminal TF's gait (movement route, stopover location, etc.) can be analyzed to track the criminal TF. it can.

  As described above, when the configuration in which the imaging device 40 includes the front camera is employed, the front camera can further acquire a captured image including the state of the road behind the track TK.

  As described above, in this example, the imaging device 40 captures an image of the periphery (external) of the excavator 100 when the excavator 100 is stolen under the control of the theft monitoring controller 33, so More information can be obtained to track offenders who stole 100.

  In this example, the imaging device 40 includes a rear camera 40B, a left camera 40L, and a right camera 40R that respectively capture the rear and side of the excavator 100 (that is, the left side and the right side). Thereby, in the situation where the shovel 100 is stolen as described above, a captured image including appropriately useful information can be acquired in accordance with a specific criminal action.

  In the present embodiment, since the periphery monitoring function and the theft monitoring function also serve as the imaging device 40, the theft monitoring function is provided to the excavator 100 that is already equipped with the periphery monitoring function while suppressing an increase in cost. Can be installed.

  Next, FIG. 5 is a flowchart schematically showing a second example of processing by the theft monitoring controller 33.

  Steps S202 to S206 and S208 of this flowchart are the same as steps S102 to S106 and S108 of the flowchart of FIG.

  After step S206, in step S207, the transmission processing unit 334 controls the antenna 33A, transmits (uploads) the captured image of the imaging device 40 to the management server 200 via the network NW1, and proceeds to step S208.

  Thus, in this example, by transmitting the captured image of the imaging device 40 to the management server 200, the management server 200 can acquire the captured image of the imaging device 40 when the shovel 100 is stolen in real time. Therefore, as shown in FIG. 4A described above, the administrator of the management server 200 specifies the number of the license plate NP in real time based on the captured image including the license plate NP captured by the rear camera 40B. The excavator 100 and the criminal TF can be tracked. Further, as shown in FIG. 4B described above, the administrator of the management server 200 is based on the captured image including the criminal TF captured by the rear camera 40B, the left camera 40L, and the right camera 40R. It is possible to analyze the characteristics of the criminal TF in real time and try to identify the criminal TF. Further, as shown in FIG. 4B described above, the administrator of the management server 200 can detect the area around the road on which the track TK travels, which is captured by the rear camera 40B, the left camera 40L, and the right camera 40R. Based on the captured image including the state, it is possible to analyze the gait of the criminal TF (movement route, stopover location, etc.) in real time and track the excavator 100 and the criminal TF.

  Next, FIG. 6 is a flowchart schematically showing a third example of processing by the theft monitoring controller 33.

  Steps S302, S304, S306, and S308 in this flowchart are the same as steps S102, S104, S106, and S108 in the flowchart in FIG.

  After step S304 or when it is determined in step S308 that the end condition is not satisfied, in step S305, the storage processing unit 333 uses the determination result by the image determination unit 304 added to the captured image. Based on this, it is determined whether the captured image is a storage target, that is, a captured image including a person or a track. If the captured image is a storage target, the storage processing unit 333 proceeds to step S306. If the captured image is not a storage target, the storage processing unit 333 proceeds to step S308.

  Thus, in this example, only the captured image including a person or a track is stored in the storage unit 339 as the captured image to be stored. As a result, as shown in FIGS. 4A and 4B described above, the captured image useful for tracking the excavator 100 and the criminal TF is reliably stored, and the capacity of the memory for storing the captured image is suppressed. , Cost increase can be suppressed.

  Note that only the captured image to be stored, that is, the captured image determined as the storage target by the image determination unit 304 may be transmitted from the periphery monitoring controller 30 to the theft monitoring controller 33. Further, the captured image may be transmitted to the management server 200 as in the second example (FIG. 5) described above. In this case, only the captured image to be stored, that is, the captured image determined to be stored by the image determining unit 304 may be transmitted to the management server 200. Thereby, since the communication amount from the shovel 100 to the management server 200 can be suppressed, the communication load can be reduced and the communication fee can be suppressed.

  Next, processing on the management server 200 side in the theft monitoring system 1000 according to the present embodiment will be described with reference to FIG.

  FIG. 7 is a flowchart schematically showing an example of processing by the management server 200. The processing according to this flowchart is repeatedly executed at predetermined time intervals while the management server 200 is operating.

  In step S402, the communication processing unit 201 receives from the excavator 100 a captured image of the imaging device 40 when a theft occurs (that is, a captured image that is started to be imaged by the determination of the theft occurrence by the theft occurrence determination unit 331). It is determined whether or not it has been started. The communication processing unit 201 proceeds to step S404 when the reception of the captured image of the imaging device 40 at the time of theft from the excavator 100 is started, and ends the current process when the reception is not started.

  In step S <b> 404, the theft occurrence notification unit 203 transmits to the terminal 300 a theft occurrence notification including an inquiry as to whether or not the captured image of the imaging device 40 needs to be transmitted.

  In step S406, the communication processing unit 201 determines whether a response to the inquiry included in the theft occurrence notification has been received from the terminal 300 within a predetermined time. If a response is received from the terminal 300, the communication processing unit 201 proceeds to step S408. If no response is received, the communication processing unit 201 ends the current process.

  In step S408, the image transmission unit 204 determines whether or not the response content from the terminal 300 indicates “necessary”, that is, indicates that transmission of the captured image is necessary. If the response content from the terminal 300 is “necessary”, the image transmission unit 204 proceeds to step S410. If not, the image transmission unit 204 ends the current process.

  In step S <b> 410, the image transmission unit 204 transmits the captured image to the terminal 300.

  In step S412, the image transmission unit 204 determines whether an end condition is satisfied. The end condition may be, for example, that reception of a captured image from the excavator 100 in the management server 200 has ended, or that a predetermined time has elapsed. If the end condition is not satisfied, the image transmitting unit 204 returns to step S410, repeats the processes of steps S410 and S412, and ends the current process if the end condition is satisfied.

  Thus, in this example, when the communication processing unit 201 receives the captured image of the imaging device 40 from the shovel 100, the theft occurrence notifying unit 203 transmits a notification indicating the theft occurrence to the terminal 300 of the user of the shovel 100. To do. Then, the image transmission unit 204 transmits a captured image to the terminal 300 when the communication processing unit 201 receives a response from the terminal 300 and the response includes a captured image transmission request. Thereby, since the user can acquire the captured image of the imaging device 40 at the time of the theft occurrence of the shovel 100 in real time, the user can confirm the situation of the theft occurrence himself. In addition, since the user can have the captured image transmitted based on a transmission request based on his / her necessity determination, for example, the captured image is actually sent to the terminal 300 in a situation where no theft has occurred. It is possible to suppress a situation in which an unnecessary communication fee is generated.

  As mentioned above, although the form for implementing this invention was explained in full detail, this invention is not limited to this specific embodiment, In the range of the summary of this invention described in the claim, various Can be modified or changed.

30 Peripheral Monitoring Controller 30R Relay 31 Security Controller 32 Engine Control Module 33 Theft Monitoring Controller 33A Antenna 40 Imaging Device 40B Rear Camera 40L Left Side Camera 40R Right Side Camera 40RB Relay 40RL Relay 40RR Relay 50 Display Device 100 Excavator 200 Management Server (Excavator Management) server)
201 Communication processing unit (image receiving unit, response receiving unit)
202 Storage processing unit 203 Theft occurrence notification unit (notification unit)
204 Image transmission unit 209 Storage unit 300 Terminal 301 Monitoring target detection unit 302 Monitoring image display processing unit 303 Image transmission unit 304 Image discrimination unit 331 Theft occurrence determination unit 332 Monitoring command unit 333 Storage processing unit 334 Transmission processing unit (transmission unit)
339 Storage Unit 1000 Theft Monitoring System

Claims (9)

Comprising an imaging device for imaging the periphery of the shovel when the shovel is stolen;
Excavator. The imaging device includes a rear camera and a side camera for imaging the rear and side of the excavator,
The excavator according to claim 1. The imaging device has its optical axis inclined obliquely downward such that a part of the body of the shovel is reflected in the vertical angle of view.
The shovel according to claim 1 or 2. A storage unit for storing a captured image of the imaging apparatus;
The excavator according to any one of claims 1 to 3. A recognition unit for recognizing a track or a person included in a captured image of the imaging device;
The storage unit stores the captured image when a track or a person is recognized in the captured image by the recognition unit.
The excavator according to claim 4. A transmission unit that transmits a captured image of the imaging device to an excavator management server disposed remotely from the excavator;
The excavator according to any one of claims 1 to 5. A recognition unit for recognizing a track or a person included in a captured image of the imaging device;
The transmission unit transmits the captured image to the excavator management server when a track or a person is recognized in the captured image by the recognition unit.
The excavator according to claim 6. An excavator management server that is communicably connected to an excavator that includes an imaging device that captures the periphery of the excavator when the shovel is stolen.
An image receiving unit that receives a captured image of the imaging device from the excavator;
Excavator management server. When the captured image is received from the excavator by the image receiving unit, a notification unit that transmits a notification indicating theft occurrence to the terminal of the user of the excavator;
A response receiver for receiving a response to the notification from the terminal;
An image transmission unit that transmits the captured image to the terminal when the response includes a transmission request for the captured image;
The excavator management server according to claim 8.

Images