Monitoring system, monitoring device and construction machinery

Abstract

The present invention addresses the problem of providing a monitoring system, a monitoring device, and a construction machine with which the convenience for a user during monitoring can be improved while ensuring security relating to leakage of peripheral video data. In a monitoring system 10 according to the present invention, a monitoring device 30: reads related information of an access ID using a second camera 300, from a first authentication-related information display unit 208 installed outside a driver's cab of a construction machine 20; and reads related information of an access password using the second camera 300, from a second authentication-related information display unit 210 installed inside the driver's cab. The access ID can consist of a combination of an identification number of the construction machine 20 and a code indicating a type of the construction machine 20.

Description

[Technical field]

[0001] The present invention relates to a monitoring system and a monitoring device for monitoring surrounding images captured by a camera of a construction machine, and to a construction machine for use therewith. [Background technology]

[0002] In the construction industry, there is a demand for construction machinery, construction management systems, tools, etc. that lead to improved productivity and safety in order to avoid labor shortages and industrial accidents. Video provision systems, such as drive recorders that record and distribute video footage from cameras installed on construction machinery, are also available. Such video provision systems allow users to review the work content at the construction site and check the progress of the work using video footage, which helps improve productivity and safety at the site.

[0003] In Patent Document 1 (abstract), the surroundings (1) of a pile construction site are photographed by an imaging means (3) to constantly monitor the construction status of a pile (2) in real time. The imaging means is mounted on a heavy machine (5), and the imaging means of the heavy machine is connected to an external terminal device (6) so as to be able to freely send and receive data, and video or still image data (7) of the surroundings of the pile construction site photographed by the imaging means of the heavy machine is constantly transmitted to the external terminal device, and the real-time construction status of the pile is visualized on the terminal device using the video or still image data.

[0004] The construction machinery management system of Patent Document 2 (abstract) has a traveling body, a working machine connected to the traveling body, a control area provided on the traveling body, a drive control unit that controls the operation of the working machine and the traveling body, an operation unit located in the control area and operating the working machine, a control seat located in the control area and in which the operator sits, a connection terminal located in the control area and connecting to a mobile terminal, a vehicle body control unit that communicates with the mobile terminal and controls each unit, and a storage unit that stores authentication information. When a mobile terminal is connected to the connection terminal, the vehicle body control unit compares the authentication information transmitted from the mobile terminal with the authentication information stored in the storage unit, and if the two match, it allows the operation corresponding to the input operation to be executed, and if the two do not match, it prohibits the operation of the working machine and the traveling body. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] JP 2019-193062 A [Patent Document 2] JP 2018-114978 A Summary of the Invention [Problem to be solved by the invention]

[0006] As described above, in Patent Document 1, video or still image data (7) of the surroundings (1) of the pile construction site taken by the imaging means (3) of the heavy equipment (5) is constantly transmitted to an external terminal device (6), and the construction status of the pile (2) in real time is visualized on the terminal device through images (summary). However, Patent Document 1 does not mention the specific connection and authentication method between the imaging means installed on the heavy equipment and the external terminal device, and there are still issues regarding the handling of image data. In particular, images of the surroundings of the construction site show the faces of the workers and the progress of the work at the site, and are data with attributes similar to (personal) information that should belong to the construction site owner, and it is necessary to prevent the data from leaking to the outside.

[0007] Although an authentication method is disclosed in Patent Document 2, Patent Document 2 requires a connection (physical contact) between the connection terminal of the control area and a mobile terminal for authentication (summary). Therefore, it is difficult to use the video or images (video or still images, hereinafter referred to as "video or images") of the construction machine for the purpose of monitoring (surveillance) with an external monitoring device (mobile terminal, etc.).

[0008] The present invention has been made in consideration of the above-mentioned problems, and aims to provide a monitoring system, monitoring device, and construction machine that can improve user convenience when monitoring while ensuring security against leakage of surrounding video data. [Means for solving the problem]

[0009] In order to achieve the above object, the monitoring system according to the present invention displays an image of the surroundings of a construction machine on a monitoring device located outside the construction machine, The construction machine includes: A first camera that captures an image of the surroundings of the construction machine; A video recording device that records the surrounding image captured by the first camera as a moving image or a still image; a first wireless communication device that transmits the surrounding image recorded in the image recording device to the monitoring device or an external server; a first authentication-related information display unit arranged outside a cab of the construction machine and configured to display first authentication-related information related to one of identification information or a password for receiving the peripheral image; a second authentication-related information display unit arranged in the driver's cab and displaying second authentication-related information related to the other of the identification information or the password for receiving the peripheral image; Equipped with The monitoring device comprises: A second wireless communication device that communicates with the construction machine or the external server; a display device that displays the surrounding image received via the second wireless communication device; Monitoring and control device having The monitoring control device includes: an authentication screen for inputting identification information and a password for receiving the peripheral image; When the identification information and password entered on the authentication screen match the genuine identification information and password, a video display screen showing the surrounding video is displayed. is displayed on the display device. It is characterized by:

[0010] According to the present invention, the first and second authentication-related information related to the identification information (ID) and password for the monitoring device to receive the surrounding video of the construction machine are both displayed on the construction machine, so that the user of the monitoring device can relatively easily obtain the identification information and password, improving user convenience. Effect of the Invention

[0011] According to the present invention, it is possible to improve the convenience for users during monitoring while ensuring security against leakage of peripheral video data. [Brief description of the drawings]

[0012] [Figure 1] 1 is a diagram showing a simplified overall configuration of a monitoring system according to an embodiment of the present invention; [Diagram 2] FIG. 2 is a block diagram showing an internal configuration of each part of the monitoring system according to the embodiment in a simplified manner. [Diagram 3] FIG. 4 is a front view showing a simplified first nameplate in the embodiment. [Figure 4] FIG. 4 is a front view showing a simplified view of a video recording unit including a second nameplate in the embodiment. [Diagram 5] 5A to 5C are diagrams showing an example of transition of a display screen on the mobile terminal of the embodiment. [Figure 6] FIG. 4 is a diagram showing an example of a construction machine list screen according to the embodiment. [Figure 7] FIG. 4 is a diagram showing a first example of a new construction machine registration screen in the embodiment. [Figure 8]A diagram showing an example of the PIN reading screen of the above embodiment. [Figure 9] A diagram showing an example of the communication address reading screen of the above embodiment. [Figure 10] A diagram showing a second example of the construction machine new registration screen of the above embodiment. [Figure 11] A diagram showing an example of the monitoring management screen of the above embodiment. [Figure 12] A diagram showing an example of the password change screen of the above embodiment.

Mode for Carrying Out the Invention

[0013] <A. One Embodiment> [A-1. Configuration] (A-1-1. Overall Configuration) FIG. 1 is a configuration diagram schematically showing the overall configuration of a monitoring system 10 according to an embodiment of the present invention. FIG. 2 is a configuration diagram schematically showing the internal configuration of each part of the monitoring system 10 according to the present embodiment. The monitoring system 10 includes a plurality of construction machines 20, a plurality of mobile terminals 30, and a management server 40. The monitoring system 10 is a system that displays peripheral images captured from the construction machine 20 on the mobile terminal 30 located outside the construction machine 20. As described above, in the present invention, the images include both moving images and still images, and the concept of images also includes those that can be included, and are collectively referred to as images or image etc.

[0014] Communication is possible between the construction machine 20 and the mobile terminal 30, and between the mobile terminal 30 and the management server 40 via a communication network 50. Communication may also be possible between the construction machine 20 and the management server 40 via the communication network 50. As the communication network 50, a wireless communication network 50 (wireless LAN) such as Wi-Fi and a wired communication network such as a communication cable can be used.

[0015] (A-1-2. Construction Machine 20) The construction machine 20 includes a hydraulic excavator, a wheel loader, a bulldozer, etc. As shown in Fig. 2, the construction machine 20 has a first camera 200, a video recording device 202, a first wireless communication device 204, a video control device 206, a first nameplate 208, a second nameplate 210, and a password initialization button 212.

[0016] The first camera 200 is disposed, for example, on the body of the construction machine 20 and captures the surroundings of the construction machine 20 (for example, the front of the body). A single construction machine 20 may be provided with a plurality of first cameras 200, each capturing an image in a different direction. The video recording device 202 has a non-volatile storage element (hard disk, flash memory, etc.) not shown, and records the surrounding images captured by the first camera 200 as moving images or still images. The surrounding images may not only be images captured directly by the first camera 200, but may also be images, etc., in which surrounding images captured in multiple directions are synthesized in the video control device 206 as if viewed from above from outside the body of the construction machine 20, or multi-split images, etc., in which images from multiple directions are synthesized into a single image, etc.

[0017] The first wireless communication device 204 (hereinafter also referred to as "wireless LAN device 204") transmits surrounding images (recorded images) recorded in the video recording device 202 and surrounding images (real-time images) captured by the first camera 200 to the mobile terminal 30 (or management server 40). The real-time images referred to here may include images immediately after being recorded in the video recording device 202. The wireless LAN device 204 also functions as an access point for a wireless LAN (Local Area Network).

[0018] The wireless LAN device 204 has an authentication function for an external device such as the mobile terminal 30 to access the wireless LAN device 204. That is, the wireless LAN device 204 receives an access identification number (access ID) and an access password from an external device in order for the external device to access the wireless LAN device 204. Then, when the received access ID and access password match the genuine access ID and access password (previously held by the wireless LAN device 204), the wireless LAN device 204 determines that authentication is established and allows the external device to transmit a surrounding image.

[0019] The image control device 206 controls the first camera 200, the image recording device 202, and the first wireless communication device 204. In this embodiment, the image recording device 202, the first wireless communication device 204, and the image control device 206 are configured as an image recording unit 230 (FIG. 4) as a single unit that integrates these devices.

[0020] 3 is a front view showing in a simplified manner the first nameplate 208 in this embodiment. The first nameplate 208 (first authentication related information display section) displays first authentication related information such as the model, type, product identification number (PIN), and manufacturer name of the construction machine 20, and is disposed on a part of the construction machine 20 (e.g., the body) outside a cab (not shown) of the construction machine 20. The first nameplate 208 is attached to a position where a user of the monitoring system 10 can see it from outside the construction machine 20, such as the outer surface of the vehicle body outside the cab or the back side of the engine cover.

[0021] 3 shows the PIN indication 224, but omits the model, type, etc. of the construction machine 20. The PIN of the construction machine 20 is composed of 17 alphanumeric characters that represent the manufacturer identification code, machine specification classification, machine instruction classification, etc., and the Japanese Industrial Standards (JIS) stipulate that no duplicate numbers shall be issued for 30 years.

[0022] In this embodiment, a two-dimensional barcode 220 indicating the PIN of the construction machine 20 is also displayed on the first nameplate 208. The PIN of the construction machine 20 is used as information related to the access ID of the wireless LAN device 204. In other words, the access ID in this embodiment is composed of a combination of the PIN of the construction machine 20 and a code (type code) indicating the type of the construction machine 20. For example, the type code is "_SH" for a hydraulic excavator.

[0023] 4 is a front view showing in simplified form the video recording unit 230 including the second nameplate 210 in this embodiment. The second nameplate 210 (second authentication related information display section) shows second authentication related information such as the model, type, product identification number (PIN), communication address, and manufacturer name of the video recording unit 230. The second nameplate 210 is placed on the front of the housing of the video recording unit 230 in the cab (not shown) of the construction machine 20 (FIG. 4).

[0024] 4 shows a communication address display 232, but omits the model, type, etc. of the video recording unit 230. In this embodiment, a two-dimensional barcode 222 indicating the communication address of the wireless LAN device 204 is also displayed on the second nameplate 210. The communication address in this embodiment is a MAC (Media Access Control) address. Furthermore, this communication address (MAC address) is used as it is as the initial access password for the wireless LAN device 204 in this embodiment.

[0025] The password initialization button 212 (hereinafter also referred to as the “initialization button 212”) is a button for initializing an access password for the wireless LAN device 204. As shown in FIG. 4, the initialization button 212 is disposed on the front surface of the housing of the video recording unit 230 so as to be aligned with the second nameplate 210.

[0026] (A-1-3. Mobile terminal 30) The mobile terminal 30 (monitoring device) receives and displays peripheral images of the construction machine 20 from the wireless LAN device 204 of the construction machine 20. The mobile terminal 30 is a portable terminal such as a smartphone, a tablet personal computer (tablet PC), or a notebook PC. As shown in FIG. 2, the mobile terminal 30 has a second camera 300, a second wireless communication device 302, an input / output device 304, a terminal control device 306, and a terminal storage device 308.

[0027] The second camera 300 can be used to capture the two-dimensional barcode 220 on the first nameplate 208 and the two-dimensional barcode 222 on the second nameplate 210. The second wireless communication device 302 can communicate with the wireless LAN device 204 of the construction machine 20 and the management server 40. The input / output device 304 accepts input from the user of the mobile terminal 30 and provides output to the user. The input / output device 304 includes a display device 310 (touch panel, etc.) that displays an image of the surroundings of the construction machine 20.

[0028] The terminal control device 306 (monitoring control device) executes an application 312 installed in the mobile terminal 30 to control the entire mobile terminal 30. The terminal storage device 308 stores the application 312 and data executed by the terminal control device 306, and has a non-volatile memory and a volatile memory. As will be described later with reference to Figs. 5 to 12, the application 312 is used to monitor (survey) images (recorded images or real-time images) of the surroundings of the construction machine 20 on the mobile terminal 30. The application 312 is downloaded from the management server 40, for example. Alternatively, it may be distributed individually by email transmission or the like.

[0029] (A-1-4. Management Server 40) The management server 40 provides the application 312 and manages data of the construction machine 20. As shown in FIG.

[0030] The communication device 400 communicates with the mobile terminal 30 (and the construction machine 20). The input / output device 402 is a device for receiving input from the user and for outputting to the user, and includes, for example, a keyboard, a mouse, and a display device (none of which are shown). The server control device 404 controls the entire management server 40 using software and data stored in a server storage device 406. The server storage device 406 has a volatile memory and a non-volatile memory. The server storage device 406 has a construction machine database 408 (hereinafter referred to as the "construction machine DB 408"). The construction machine DB 408 stores the PIN of the construction machine 20 and the model name and number of the construction machine 20 that correspond to the PIN of the construction machine 20 in association with each other.

[0031] [A-2. How to use this embodiment] Next, a method of using the monitoring system 10 of this embodiment will be described, focusing on the mobile terminal 30. As described above, in the monitoring system 10 of this embodiment, the user of the mobile terminal 30 can check the surrounding image of the construction machine 20 on the mobile terminal 30.

[0032] 5 is a diagram showing an example of a transition of a display screen in the mobile terminal 30 of this embodiment. When the user of the mobile terminal 30 selects (tap) an icon (not shown) for starting the application 312, the terminal control device 306 starts the application 312 in the terminal storage device 308 and displays an initial screen 60 on the display device 310. When a login button (not shown) is selected on the initial screen 60, the terminal control device 306 displays a login screen 62 on the display device 310 (arrow A1 in FIG. 5). When the user of the mobile terminal 30 inputs a login ID and a login password on the login screen 62 and selects a decision button (not shown), the terminal control device 306 displays a main menu screen 64 on the display device 310 (arrow A2 in FIG. 5).

[0033] On the main menu screen 64, it is possible to select various functions that can be executed by the application 312, and one of the functions that can be selected is monitoring the surrounding video of the construction machine 20. When the user selects the surrounding video monitoring button (not shown), the terminal control device 306 causes the display device 310 to display the construction machine list screen 66 (arrow A3 in FIG. 5).

[0034] FIG. 6 is a diagram showing an example of a construction machine list screen 66 of this embodiment. The construction machine list screen 66 is a screen for managing the construction machines 20 that acquire peripheral images. As shown in FIG. 6, the construction machine list screen 66 has a screen title 661, operation instructions 662, a new addition button 663, a construction machine description 664, a construction machine icon 665, and an edit button 666. The screen title 661 shows an overview of the construction machine list screen 66, and is displayed as "Machine List" in the example of FIG. 6. The operation instructions 662 are an explanation of operations that the user can perform, and is displayed as "Please select a machine to monitor" in the example of FIG. 6.

[0035] The new addition button 663 is a button for adding a construction machine 20 (i.e., a construction machine 20 to be monitored whose surrounding video is monitored) to be displayed on the construction machine list screen 66. When the user selects the new addition button 663, the terminal control device 306 causes the display device 310 to display a new construction machine registration screen 68 (arrow A4 in FIG. 5).

[0036] The construction machine description 664 indicates information about the construction machine 20 for which peripheral video can be monitored. For example, the PIN of the construction machine 20 is used as the information here. When information about the target construction machine 20 is stored in the construction machine DB 408 of the management server 40, the terminal control device 306 may acquire information from the management server 40 and display the model name and number of the corresponding construction machine 20 instead of the PIN of the construction machine 20. The timing for acquiring the model name and number information from the management server 40 may be, for example, the timing for displaying the model name and number, or the timing for registering information about a new construction machine 20, or the timing for starting the application 312. The model name and number information acquired from the management server 40 may be stored in the terminal storage device 308 of the mobile terminal 30 and used at each display timing.

[0037] The construction machinery icon 665 is an icon indicating the type of construction machinery 20 corresponding to the paired construction machinery description 664. The type of the construction machinery icon 665 is selected, for example, based on a type code included in the PIN of the construction machinery 20. Alternatively, it is also possible to determine the type of the construction machinery icon 665 by acquiring the type of the construction machinery 20 from the management server 40 based on the PIN of the construction machinery 20. When the user of the mobile terminal 30 selects (double-tap) the construction machinery description 664 or the construction machinery icon 665, the terminal control device 306 starts processing for monitoring the surrounding video of the corresponding construction machinery 20.

[0038] The edit button 666 is a button for editing information of a registered construction machine 20. When the user taps the edit button 666, the terminal control device 306 displays an edit screen (not shown). On the edit screen, the PIN, communication address, access ID, and access password of the construction machine 20 can be displayed or edited.

[0039] 7 is a diagram showing a first example of a new construction machine registration screen 68 of this embodiment. As described above, when the user selects (tap) the new addition button 663 on the construction machine list screen 66 (FIG. 6), the new construction machine registration screen 68 is displayed on the display device 310 (arrow A4 in FIG. 5). The new construction machine registration screen 68 (hereinafter also referred to as the "new registration screen 68") is a screen for inputting the PIN of the construction machine 20 to be newly monitored and the communication address of the wireless LAN device 204 (related information of the access ID and the access password). The new registration screen 68 has a screen title 681, a PIN input field 682, a communication address input field 683, a cancel button 684, and a register button 685.

[0040] The screen title 681 shows an overview of the new registration screen 68, and in the example of FIG. 7, it is displayed as "Add Machine Information". The PIN input field 682 is a field for inputting the PIN (information related to the access ID) of the construction machine 20 to be newly monitored. When the user selects (tap) the PIN input field 682, the terminal control device 306 displays a keyboard display 688 (FIG. 10) below the new registration screen 68. The user can select each button on the keyboard display 688 to input the PIN. As described above, the PIN of the construction machine 20 is displayed on the first nameplate 208. A first barcode input button 686 is displayed at the right end of the PIN input field 682. When the user selects (tap) the first barcode input button 686, the terminal control device 306 displays the PIN reading screen 70 on the display device 310 (arrow A5 in FIG. 5).

[0041] The communication address input field 683 is a field for inputting the communication address (related information of the access password) of the wireless LAN device 204 of the construction machine 20 to be newly monitored. When the user selects (tap) the communication address input field 683, the terminal control device 306 displays a keyboard display 688 (FIG. 10) below the new registration screen 68. The user can select each button on the keyboard display 688 to input the access password. A second barcode input button 687 is displayed on the right end of the communication address input field 683. When the user taps the second barcode input button 687, the terminal control device 306 displays the communication address read screen 72 on the display device 310 (arrow A7 in FIG. 5).

[0042] The cancel button 684 is a button for interrupting input on the new construction machine registration screen 68. The register button 685 is a button for completing input on the new construction machine registration screen 68. The register button 685 cannot be selected if the PIN or communication address has not been entered, and can be selected if both the PIN and the communication address have been entered. When the cancel button 684 or the register button 685 is tapped, the screen returns to the construction machine list screen 66 (arrow A9 in FIG. 5). Alternatively, when the register button 685 is tapped, the screen may transition to the monitoring management screen 74 described later.

[0043] Fig. 8 is a diagram showing an example of the PIN reading screen 70 of this embodiment. As described above, when the user selects (tap) the first barcode input button 686 on the new construction machine registration screen 68 (Fig. 7), the PIN reading screen 70 is displayed on the display device 310 (arrow A5 in Fig. 5). The PIN reading screen 70 is a screen for automatically inputting the PIN of the construction machine 20 using the two-dimensional barcode 220 (Fig. 3) on the first nameplate 208 of the construction machine 20 that is a new monitoring target. The PIN reading screen 70 has an operation instruction 701, an operation instruction image 702, and a two-dimensional barcode reading field 703.

[0044] The operation instruction 701 is an explanation of the operations that the user can perform, and in the example of FIG. 8, "Scan the two-dimensional code on the PIN plate" is displayed. The operation instruction image 702 is an image showing the position of the two-dimensional barcode 220 to be read (the image is omitted in FIG. 8). The two-dimensional barcode reading field 703 is a portion where the image captured by the second camera 300 is displayed. The image captured by the second camera 300 may also be displayed around the reading field 703. The terminal control device 306 determines whether or not the two-dimensional barcode 220 is present in the reading field 703, and when the two-dimensional barcode 220 is detected, determines the contents indicated by the two-dimensional barcode 220 (the PIN of the construction machine 20). Thereafter, the terminal control device 306 returns to the new registration screen 68 (arrow A6 in FIG. 5) and displays the contents of the read two-dimensional barcode 220 (the PIN of the construction machine 20) in the PIN input field 682 (FIGS. 7 and 10).

[0045] 9 is a diagram showing an example of the communication address read screen 72 of this embodiment. As described above, when the user selects (tap) the second barcode input button 687 on the new construction machine registration screen 68 (FIG. 7), the communication address read screen 72 is displayed on the display device 310 (arrow A7 in FIG. 5). The communication address read screen 72 is a screen for automatically inputting the communication address (information related to the access password) of the wireless LAN device 204 using the two-dimensional barcode 222 on the second nameplate 210 of the construction machine 20 to be newly monitored. The communication address read screen 72 has an operation instruction 721, an operation instruction image 722, and a two-dimensional barcode reading field 723.

[0046] The operation instruction 721 is an explanation of the operation that the user can perform, and in the example of FIG. 9, "Scan the two-dimensional code of the operation recorder" is displayed. The operation instruction image 722 is an image showing the position of the two-dimensional barcode 222 to be read (the image is omitted in FIG. 9). The two-dimensional barcode reading field 723 is a portion where the image captured by the second camera 300 is displayed. The image captured by the second camera 300 may also be displayed around the reading field 723. The terminal control device 306 determines whether or not the two-dimensional barcode 222 is present in the reading field 723, and when the two-dimensional barcode 222 is detected, determines the contents (communication address) indicated by the two-dimensional barcode 222. Thereafter, the terminal control device 306 returns to the new registration screen 68 (arrow A8 in FIG. 5) and displays the contents (communication address) of the read two-dimensional barcode 222 in the communication address input field 683 (FIGS. 7 and 10).

[0047] Figure 10 is a diagram showing a second example of the construction machine new registration screen 68 of this embodiment. The display content of Figure 10 is basically the same as that of Figure 7. However, in the example of Figure 10, a keyboard display 688 is displayed. Also, in the example of Figure 10, the PIN and communication address of the construction machine 20 have been entered, so the registration button 685 is selectable (active). As can be seen from the communication address in Figure 10, the communication address in this embodiment is a MAC address.

[0048] As described above, when the registration button 685 is tapped while it is in an active state, the terminal control device 306 completes the input on the new construction machine registration screen 68. Specifically, the terminal control device 306 stores the PIN entered in the PIN input field 682 and the communication address entered in the communication address input field 683 in the terminal storage device 308. Then, the terminal control device 306 returns to the construction machine list screen 66 (FIG. 6) (arrow A9 in FIG. 5), and displays the construction machine description 664, construction machine icon 665 and edit button 666 corresponding to the construction machine 20 entered this time.

[0049] In this embodiment, a combination of the PIN of the construction machine 20 and the type code of the construction machine 20 is set in the access ID (specifically, SSID: Service Set Identifier) ​​of the wireless LAN device 204 (video recording unit 230). The type code can be determined from the PIN of the construction machine 20. Therefore, the terminal control device 306 determines the type code of the construction machine 20 from the PIN of the construction machine 20, and generates and stores an access ID for the wireless LAN device 204 (alternatively, the access ID may be generated from the PIN of the construction machine 20 when receiving peripheral video). As described above, the type code may be obtained by inquiring of the management server 40. The two-dimensional barcode 220 may indicate the access ID itself (a combination of the PIN and the type code).

[0050] In this embodiment, the communication address of the wireless LAN device 204 is set as the initial value (initial password) of the access password of the wireless LAN device 204 (video recording unit 230). Therefore, the terminal control device 306 stores the communication address of the wireless LAN device 204 as the access password (as will be described later, the access password is changeable).

[0051] Returning to Fig. 6, as described above, when the construction machine description 664 or the construction machine icon 665 is selected (double tapped), the terminal control device 306 starts processing for monitoring the surrounding video of the corresponding construction machine 20. Specifically, the terminal control device 306 attempts to access the video recording unit 230 (wireless LAN device 204) of the selected construction machine 20 using the access ID and access password of that video recording unit 230. Prior to that access, an access start confirmation screen (not shown) may be displayed to confirm the start of access to the user of the mobile terminal 30.

[0052] If the access start is successful, the terminal control device 306 acquires the recording list information from the video recording unit 230. In addition, the terminal control device 306 transitions from the construction machine list screen 66 to the monitoring management screen 74 (arrow A10 in FIG. 5).

[0053] Fig. 11 is a diagram showing an example of the monitoring management screen 74 of this embodiment. As described above, when the user selects (double-tap) the construction machine description 664 or the construction machine icon 665 on the construction machine list screen 66 (Fig. 6), the monitoring management screen 74 is displayed on the display device 310 (arrow A10 in Fig. 5). The monitoring management screen 74 is a screen for managing the monitoring of the peripheral video of the construction machine 20. As shown in Fig. 11, the monitoring management screen 74 has a screen title 741, a construction machine description 742, an operation instruction 743, a recording file display 744, a recording playback button 745, a real-time playback button 746, and a password change button 747.

[0054] The screen title 741 indicates an overview of the monitoring management screen 74, and is displayed as "Playlist" in the example of Fig. 11. The construction machine description 742 is a description that identifies the target construction machine 20, and in the example of Fig. 11, the PIN of the construction machine 20 is displayed. When information on the target construction machine 20 is stored in the construction machine DB 408 of the management server 40, the terminal control device 306 may obtain the information from the management server 40 and display the model name and machine number of the corresponding construction machine 20 instead of the PIN of the construction machine 20.

[0055] The operation instructions 743 are instructions for operations that the user can perform, and in the example of Fig. 11, it displays "Please select the recorded file you want to view." The recorded file display 744 displays the recorded files that can be played (or downloaded).

[0056] When the recording / playback button 745 is selected (tapped) with any of the recording file displays 744 selected, it commands the playback (download) of the recording file display 744. When the recording / playback button 745 is selected (tapped), the terminal control device 306 requests the video recording unit 230 to send a recording file corresponding to the selected recording file display 744, and downloads (or receives) the recording file from the video recording unit 230. At this time, a screen indicating that the recording file is being received may be displayed. When the download of the recording file is completed, the terminal control device 306 displays the recording / playback screen 76 (arrow A11 in FIG. 5) and plays the recording file. When the back button (not shown) is selected (tapped) on the recording / playback screen 76, the terminal control device 306 returns from the recording / playback screen 76 to the monitoring management screen 74 (arrow A12 in FIG. 5).

[0057] The real-time playback button 746 in Fig. 11 is a button for commanding the display of real-time video. When the real-time playback button 746 is selected (tapped), the terminal control device 306 requests real-time video from the video recording unit 230 and receives the real-time video from the video recording unit 230. The terminal control device 306 also switches from the monitoring management screen 74 to the real-time display screen 78 (arrow A13 in Fig. 5) and displays the real-time video. When the back button (not shown) is tapped on the real-time display screen 78, the terminal control device 306 returns from the real-time display screen 78 to the monitoring management screen 74 (arrow A14 in Fig. 5).

[0058] The password change button 747 in Fig. 11 is a button for issuing a command to change the communication password of the video recording unit 230 of the selected construction machine 20. When the password change button 747 is selected (tapped), the terminal control device 306 displays the password change screen 80 (arrow A15 in Fig. 5).

[0059] 12 is a diagram showing an example of the password change screen 80 of this embodiment. The password change screen 80 is a screen for changing the communication password of the video recording unit 230 of the selected construction machine 20. The password change screen 80 has a screen title 801, a construction machine description 802, a current password input field 803, a new password input field 804, a new password confirmation input field 805, a cancel button 806, and a change button 807.

[0060] The screen title 801 shows an overview of the password change screen 80, and in the example of Fig. 12, it displays "Change Wireless LAN Access Password". The construction machine description 802 is a description that identifies the target construction machine 20, and in the example of Fig. 12, the PIN of the construction machine 20 is displayed. When information on the target construction machine 20 is stored in the construction machine DB 408 of the management server 40, the terminal control device 306 may obtain the information from the management server 40 and display the model name and machine number of the corresponding construction machine 20 instead of the PIN of the construction machine 20.

[0061] The current password input field 803 is a field for inputting the current access password of the selected construction machine 20. When the user selects (tap) the current password input field 803, the terminal control device 306 displays a keyboard input display (not shown; similar to 688 in FIG. 10) below the password change screen 80. The user can select each button on the keyboard display to input the current password. A barcode input button 808 is displayed on the right end of the current password input field 803. When the user taps the barcode input button 808, the terminal control device 306 displays the current password read screen 82 on the display device 310 (arrow A16 in FIG. 5).

[0062] The current password read screen 82 has the same contents as the communication address read screen 72 (FIG. 9). That is, the communication address (MAC address) of the video recording unit 230 is used as the initial value of the communication password of the video recording unit 230 in this embodiment. Therefore, if the current password remains the initial value, the contents indicated by the two-dimensional barcode 222 on the second nameplate 210 provided on the video recording unit 230 are the current password. When the two-dimensional barcode 222 is read on the current password read screen 82, the terminal control device 306 returns to the password change screen 80 (arrow A17 in FIG. 5). At that time, the contents of the read two-dimensional barcode 222 are input into the current password input field 803 on the password change screen 80. Note that, if the password has already been changed, the terminal control device 306 may omit displaying the barcode input button 808. In that case, switching to the current password read screen 82 is not performed.

[0063] The new password input field 804 is a field for inputting a new access password for the selected construction machine 20. The new password confirmation input field 805 is a field for re-inputting a new access password for the selected construction machine 20. When the user selects (tap) the new password input field 804 or the new password confirmation input field 805, the terminal control device 306 displays a keyboard input display (not shown; similar to 688 in FIG. 10) below the password change screen 80. The user can select each button on the keyboard display to input a new password.

[0064] The cancel button 806 is a button for interrupting input on the password change screen 80. The change button 807 is a button for completing input on the password change screen 80. The change button 807 cannot be selected if any input field has not been filled in, and can be selected if all input fields have been filled in. When the cancel button 806 or the change button 807 is selected (tapped), the screen returns to the monitoring management screen 74 (arrow A18 in FIG. 5).

[0065] When a new password is set on the password change screen 80, the following process is carried out. That is, the terminal control device 306 transmits the current password and the new password together with a password change command to the video recording unit 230. The video recording unit 230, which has received the password change command, determines whether the received current password matches the current password it holds. If the two match, the video recording unit 230 records the received new password as the current password to be used in the future, and transmits a password change completion notification to the terminal control device 306. The terminal control device 306, which has received the password change notification, updates the current password to the new password.

[0066] When a machine list display button (not shown) is tapped on the monitoring management screen 74 (FIG. 6), the terminal control device 306 switches from the monitoring management screen 74 to the construction machine list screen 66 (arrow A19 in FIG. 5).

[0067] [A-3. Effects of this embodiment] According to this embodiment, information (two-dimensional barcodes 220, 222) relating to the access ID and access password for the mobile terminal 30 (monitoring device) to receive peripheral video of the construction machine 20 are both displayed on the construction machine 20. Therefore, the user of the mobile terminal 30 can easily obtain the access ID and access password, improving user convenience.

[0068] In addition, the two-dimensional barcodes 220, 222 as information related to the access ID and the access password are displayed separately on the first nameplate 208 (first authentication related information display section) and the second nameplate 210 (second authentication related information display section) (FIGS. 3 and 4). Therefore, security can be improved compared to a case where the two-dimensional barcodes 220, 222 are displayed on a single nameplate (authentication related information display section). Furthermore, the second nameplate 210 is disposed in the cab of the construction machine 20. Therefore, by disposing the second nameplate 210 in a position where the cab can be locked and cannot be confirmed from outside the cab, the display on the second nameplate 210 (information related to the access password) can be confirmed only when the cab is unlocked. Therefore, in order to receive the peripheral image of the construction machine 20 using the mobile terminal 30, the user of the mobile terminal 30 is limited to a person who has the authority to enter the cab of the construction machine 20 (such as a person who has a key to the construction machine 20), which further improves security.

[0069] In this embodiment, the two-dimensional barcode 220 (first authentication related information) on the first nameplate 208 includes the PIN of the construction machine 20 (FIG. 3). Also, the access ID for receiving the surrounding video is composed of a combination of the PIN of the construction machine 20 and a code indicating the type of the construction machine 20. This allows the user of the mobile terminal 30 (monitoring device) to easily input the access ID.

[0070] In this embodiment, the access ID and the access password related information are displayed as two-dimensional barcodes 220, 222 on the first nameplate 208 (first authentication related information display section) and the second nameplate 210 (second authentication related information display section), respectively (FIGS. 3 and 4). Moreover, the mobile terminal 30 (monitoring device) has a second camera 300 that captures the two-dimensional barcodes 220, 222 (FIG. 2). Furthermore, the terminal control device 306 (monitoring control device) reads the two-dimensional barcodes 220, 222 captured by the second camera 300, and inputs the access ID and the access password (FIGS. 8 to 10). This allows the user of the mobile terminal 30 to easily input the access ID and the access password.

[0071] In this embodiment, the monitoring system 10 includes a plurality of construction machines 20 (FIG. 1). Furthermore, the mobile terminal 30 (monitoring device) displays in a list the plurality of construction machines 20 for which an access ID and an access password have been entered (FIG. 6). Furthermore, in the list, an icon 665 indicating the type of machine corresponding to the construction machine 20 is displayed for each construction machine 20 (FIG. 6). This makes it easy for the user of the mobile terminal 30 to identify the construction machine 20 that they wish to monitor when there are a plurality of construction machines 20 that can be monitored.

[0072] In this embodiment, the access ID (identification information for receiving peripheral video) includes the PIN of the construction machine 20. The monitoring system 10 also includes a construction machine DB 408 that stores the PIN of the construction machine 20 in association with the model name and machine number of the construction machine 20 that corresponds to the PIN (Fig. 2). Furthermore, the mobile terminal 30 (monitoring device) can display the model name and machine number of the construction machine 20 acquired from the construction machine DB 408 in a list of the construction machines 20 (Fig. 6). This makes it easier for the user of the mobile terminal 30 to identify each construction machine 20 compared to when the PINs of the construction machines 20 are displayed in a list.

[0073] In this embodiment, the construction machine 20 is capable of transmitting both recorded video and real-time video from the first camera 200 (FIG. 11). Furthermore, the mobile terminal 30 (monitoring device) displays a monitoring management screen 74 (display selection screen) for selecting whether to display the recorded video or the real-time video (FIG. 11). Furthermore, the mobile terminal 30 displays the recorded video or real-time video in accordance with the selection input on the monitoring management screen 74 (arrows A11, A13 in FIG. 5). This allows the user of the mobile terminal 30 to appropriately select and monitor the recorded video and real-time video of the construction machine 20 to be monitored. This makes it possible to improve the convenience for the user of the mobile terminal 30.

[0074] In this embodiment, the mobile terminal 30 (monitoring device) displays a password change screen 80 (FIG. 12) for changing the access password (password for receiving peripheral video). The mobile terminal 30 also transmits the new password entered on the password change screen 80 to the wireless LAN device 204 (first wireless communication device). The wireless LAN device 204 then uses the received new password. This makes it possible to change the password (access password) of the wireless LAN device 204 of the construction machine 20 from the mobile terminal 30, thereby improving security.

[0075] In this embodiment, the construction machine 20 is provided with an initialization button 212 for initializing the access password (password for receiving peripheral video) (FIGS. 2 and 4). This makes it possible to initialize the password as necessary even when a new password is set via a mobile terminal 30 (monitoring device). Therefore, even when there are multiple mobile terminals 30, a new password is set via one of the mobile terminals 30 (first mobile terminal 30) and the user of another mobile terminal 30 (second mobile terminal 30) does not know the new password, it is possible to deal with this by initializing the password.

[0076] In this embodiment, the terminal control device 306 (monitoring control device) a PIN reading screen 70 (first reading screen) that requests the second camera 300 to read a two-dimensional barcode 220 (information related to the access ID) displayed on a first nameplate 208 (first authentication related information display section) arranged on the construction machine 20; a communication address read screen 72 (second read screen) that requests the second camera 300 to read a two-dimensional barcode 222 (information related to the access password) displayed on a second nameplate 210 (second authentication related information display section) arranged on the construction machine 20; A new construction machine registration screen 68 (authentication screen) for inputting an access ID and an access password based on the information of the two-dimensional barcodes 220, 222 read on the PIN reading screen 70 and the communication address reading screen 72 to perform authentication for receiving peripheral images; When the access ID and access password entered on the new registration screen 68 match the genuine access ID and access password, a recording playback screen 76 or a real-time display screen 78 (video display screen) showing the surrounding video and is displayed on the display device 310 (Fig. 5).

[0077] According to this embodiment, when the two-dimensional barcode 220 (conventional information of the access ID) and the two-dimensional barcode 222 (related information of the access password) are separately displayed on the construction machine 20, the access ID and the access password can be easily input. In addition, the mobile terminal 30 (monitoring device) according to this embodiment can be used as a part of the highly secure monitoring system 10.

[0078] <B. Modification Example> Note that the present invention is not limited to the above embodiment, and various configurations can be adopted based on the description in this specification. For example, the following configurations can be adopted.

[0079] [B-1. Configuration] (B-1-1. Monitoring System 10) In the above embodiment, the monitoring system 10 had a plurality of construction machines 20 and a plurality of mobile terminals 30 (Fig. 1). However, the monitoring system 10 may have only one construction machine 20 and a plurality of mobile terminals 30, or only a plurality of construction machines 20 and one mobile terminal 30, or only one construction machine 20 and one mobile terminal 30.

[0080] (B-1-2. Construction Machine 20) In the above embodiment, the construction machine 20 (video recording unit 230) transmitted both the moving images and still images of the first camera 200 to the mobile terminal 30 as surrounding videos. However, a configuration in which only one of the moving images or still images is transmitted to the mobile terminal 30 is also possible.

[0081] In the above embodiment, the construction machine 20 (video recording unit 230) transmitted both the recorded video and real-time video from the first camera 200 to the mobile terminal 30 as peripheral video (FIG. 11). However, a configuration in which only the recorded video or the real-time video is transmitted to the mobile terminal 30 is also possible. When transmitting only the real-time video, a configuration without the video recording device 202 is also possible.

[0082] In the above embodiment, the first nameplate 208 and the second nameplate 210 are used as the portions (authentication related information display portions) for displaying the two-dimensional barcodes 220, 222 (FIGS. 2 to 4). However, from the viewpoint of displaying the two-dimensional barcodes 220, 222, for example, the present invention is not limited to this, and the two-dimensional barcodes 220, 222 may be displayed in other portions.

[0083] In the above embodiment, the first nameplate 208 is arranged outside the cab, and the second nameplate 210 is arranged inside the cab. However, this is not limited to the above, for example, from the viewpoint of displaying the access ID and the access password in different locations (authentication related information display unit). The first nameplate 208 may be arranged inside the cab, and the second nameplate 210 may be arranged outside the cab. Alternatively, both the first nameplate 208 and the second nameplate 210 may be arranged inside or outside the cab.

[0084] In the above embodiment, the password initialization button 212 is provided on the front surface of the video recording unit 230 (FIG. 4), but it may be provided in another location.

[0085] (B-1-3. Mobile terminal 30 (monitoring device)) In the above embodiment, the mobile terminal 30 is used as a monitoring device for monitoring the video around the construction machine 20 (FIGS. 1 and 2). However, from the viewpoint of using the PIN of the construction machine 20 as the related information of the access ID, for example, this is not limited to this. For example, it is also possible to use an information terminal other than the mobile terminal 30 (for example, a desktop PC) as the monitoring device.

[0086] (B-1-4. Management Server 40) In the above embodiment, the monitoring system 10 includes the management server 40 (FIG. 1). However, the management server 40 may be omitted.

[0087] [B-2. Control] (B-2-1. Communication between the construction machine 20 and the mobile terminal 30) In the above embodiment, it is assumed that the construction machine 20 and the mobile terminal 30 communicate with each other via a wireless LAN (Ethernet) (FIG. 1). However, from the viewpoint of transmitting surrounding images to the mobile terminal 30, for example, this is not limiting. For example, the construction machine 20 and the mobile terminal 30 can also communicate with each other via the Internet.

[0088] (B-2-2. Provision of surrounding footage) In the above embodiment, the peripheral video of the construction machine 20 is directly transmitted from the construction machine 20 to the mobile terminal 30 (FIGS. 1 and 2). However, from the viewpoint of monitoring the peripheral video with the mobile terminal 30, for example, this is not limited to the above. For example, the peripheral video may be transmitted from the construction machine 20 to the mobile terminal 30 via the management server 40. In this case, the recorded video may be recorded in the storage device 406 of the management server 40, rather than in the video recording device 202 of the construction machine 20. Furthermore, when the management server 40 is used, authentication of the access ID and access password for the mobile terminal 30 to receive the peripheral video may be performed by the management server 40, rather than by the construction machine 20.

[0089] (B-2-3. Access ID and Access Password) In the above embodiment, the access ID uses a combination of the PIN of the construction machine 20 and the type code of the construction machine 20. However, from the viewpoint of setting the access ID based on the PIN of the construction machine 20, for example, this is not limited to this. For example, the access ID may be composed of only the PIN of the construction machine 20. Or, the access ID may include a hash value based on the PIN of the construction machine 20. Or, from the viewpoint of displaying one of the access ID and the access password on the first nameplate 208 and the other on the second nameplate 210, for example, the access ID may be set to a value unrelated to the PIN of the construction machine 20.

[0090] In the above embodiment, the communication address (MAC address) of the wireless LAN device 204 is used as the access password. However, from the viewpoint of setting the initial access password based on the communication address of the wireless LAN device 204 (first wireless communication device), for example, this is not limited. For example, the initial access password may be configured as a combination of the communication address of the wireless LAN device 204 and the type code of the construction machine 20. Alternatively, the initial access password may include a hash value based on the communication address of the wireless LAN device 204. Alternatively, from the viewpoint of displaying one of the access ID and the access password on the first nameplate 208 and the other on the second nameplate 210, for example, the access password may be set to a value unrelated to the communication address of the wireless LAN device 204.

[0091] In the above embodiment, a part of the access ID and the access password are displayed as two-dimensional barcodes 220, 222 (FIGS. 3 and 4). However, this is not limited to the above, as long as the part of the access ID and the access password are displayed separately. For example, information related to the access ID or the access password may be displayed as a normal character string other than a barcode or a one-dimensional barcode.

[0092] (B-2-4. Display screen of mobile terminal 30) In the above embodiment, the construction machines 20 for which peripheral video can be monitored are displayed in a list on the construction machine list screen 66 (FIG. 6). However, from the viewpoint of peripheral video monitoring, for example, this is not limited to this. For example, it is also possible to configure the construction machine 20 to be monitored to be input on the mobile terminal 30 each time monitoring is actually performed.

[0093] In the construction machine list screen 66 (FIG. 6) of the above embodiment, the icon 665 is displayed in addition to the construction machine description 664. However, it is also possible to omit the icon 665.

[0094] The monitoring system 10 according to this embodiment displays an image of the surroundings of a construction machine 20 on a mobile terminal (monitoring device) 30 located outside the construction machine 20. The construction machine 20 is A first camera 200 that captures an image of the surroundings of the construction machine 20; A video recording device 202 that records surrounding images captured by the first camera 200 as moving or still images; A wireless LAN device (first wireless communication device) 204 that transmits the surrounding video recorded in the video recording device 202 to the mobile terminal 30 or the external server 40; a first nameplate (first authentication related information display unit) 208 arranged outside the cab of the construction machine 20 and displaying first authentication related information related to either identification information or a password for receiving peripheral images; a second nameplate (second authentication related information display unit) 210 arranged in the driver's cab and displaying second authentication related information related to the other of identification information or a password for receiving peripheral images; Equipped with The mobile terminal 30 includes: A second wireless communication device 302 that communicates with the construction machine 20 or the external server 40; a display device 310 that displays a surrounding image received via the second wireless communication device 302; A terminal control device (monitoring control device) 306 and having The terminal control device 360 ​​is an authentication screen 68 for inputting identification information and a password for receiving peripheral images; When the identification information and password entered on the authentication screen 68 match the genuine identification information and password, a recording playback screen 76 or a real-time display screen 78 (image display screen) showing the surrounding image is displayed. is displayed on the display device 310. It is characterized by:

[0095] According to this embodiment, the first and second authentication-related information related to the identification information (ID) and password for the mobile terminal 30 to receive peripheral images of the construction machine 20 are both displayed on the construction machine 20. Therefore, the user of the mobile terminal 30 can relatively easily obtain the identification information and password, improving user convenience.

[0096] In addition, the first and second authentication-related information related to the identification information and password for receiving the peripheral image of the construction machine 20 are displayed separately on the first nameplate 208 and the second nameplate 210. Therefore, security can be improved compared to a case where the identification information and the password are displayed on a single authentication-related information display unit. Furthermore, the second nameplate 210 is placed in the cab of the construction machine 20. Therefore, if the cab can be locked and the second nameplate 210 is placed in a position where it cannot be confirmed from outside the cab, the display (information related to the identification information or password) on the second nameplate 210 can be confirmed only when the cab is unlocked. Therefore, in order to receive the peripheral image of the construction machine 20 using the mobile terminal 30, the user of the mobile terminal 30 is limited to a person who has the authority to enter the cab of the construction machine 20 (such as a person who has a key to the construction machine), which further improves security.

[0097] The first authentication related information may include an identification number of the construction machine 20. The identification information for receiving the surrounding video may be composed of a combination of the identification number of the construction machine 20 and a code indicating the type of the construction machine 20. This allows the user of the mobile terminal 30 to easily input the identification information for receiving the surrounding video.

[0098] The first authentication-related information and the second authentication-related information may be displayed as two-dimensional barcodes 220, 222 on the first nameplate 208 and the second nameplate 210, respectively. The mobile terminal 30 may also have a second camera 300 that captures the two-dimensional barcodes 220, 222. The terminal control device 306 may read the two-dimensional barcodes 220, 222 captured by the second camera 300, and input identification information and a password for receiving a surrounding image based on the first authentication-related information and the second authentication-related information. This allows the user of the mobile terminal 30 to easily input the identification information and the password for receiving a surrounding image.

[0099] The monitoring system 10 may include a plurality of construction machines 20. Furthermore, the mobile terminal 30 may display a plurality of construction machines 20, into which identification information and a password for receiving peripheral video have been entered, on a construction machine list screen (list) 66. Furthermore, on the construction machine list screen 66, an icon indicating the type of machine corresponding to the construction machine 20 may be displayed for each construction machine 20. This makes it easy for the user of the mobile terminal 30 to identify the construction machine 20 that he or she wishes to monitor, when there are a plurality of construction machines 20 that can be monitored.

[0100] The identification information for receiving the surrounding video may include the identification number of the construction machine 20. The monitoring system 10 may further include a construction machine database 408 that stores the identification number of the construction machine 20 in association with the model name and the machine number of the construction machine 20 corresponding to the identification number. Furthermore, the mobile terminal 30 may display the model name and the machine number of the construction machine 20 acquired from the construction machine database 408 in the list of the construction machines 20. This makes it easier for the user of the mobile terminal 30 to identify each construction machine 20 compared to the case where the identification numbers of the construction machines 20 are displayed in a list.

[0101] The construction machine 20 may be capable of transmitting both the recorded video and real-time video of the first camera 200. The mobile terminal 30 may also display a display selection screen 74 for selecting whether to display the recorded video or real-time video. Furthermore, the mobile terminal 30 may display the recorded video or real-time video in accordance with a selection input on the display selection screen 74. This allows the user of the mobile terminal 30 to appropriately select and monitor the recorded video and real-time video of the construction machine 20 to be monitored. This makes it possible to improve convenience for the user of the mobile terminal 30.

[0102] The mobile terminal 30 may display a password change screen 80 for changing the password for receiving the peripheral video. The mobile terminal 30 may also transmit the new password entered on the password change screen 80 to the wireless LAN device 204. Furthermore, the wireless LAN device 204 may use the received new password. This makes it possible to change the password of the wireless LAN device 204 of the construction machine 20 from the mobile terminal 30, thereby improving security.

[0103] The construction machine 20 may be provided with a password initialization button (initialization button) 212 for initializing a password for receiving peripheral video. This makes it possible to initialize the password as necessary even when a new password is set via the mobile terminal 30. Therefore, even when there are multiple mobile terminals 30 and a new password is set via one of the mobile terminals 30 (first monitoring device), and the user of another monitoring device (second monitoring device) does not know the new password, it is possible to deal with this by initializing the password.

[0104] The mobile terminal 30 according to this embodiment receives and displays an image of the surroundings of the construction machine 20. The mobile terminal 30 includes: A second camera 300; A second wireless communication device 302 that communicates with the construction machine 20 or the external server 40; a display device 310 that displays a surrounding image received via the second wireless communication device 302; A terminal control device (monitoring control device) 306 and having The terminal control device 306 is a first reading screen 70 that requests the second camera 300 to read first authentication-related information related to either identification information or a password for receiving peripheral images, the first authentication-related information being displayed on a first nameplate 208 disposed on the construction machine 20; a second reading screen 72 that requests the second camera 300 to read second authentication-related information related to either the identification information or the password for receiving peripheral images, the second authentication-related information being displayed on a second nameplate 210 arranged on the construction machine 20; an authentication screen 68 for inputting identification information and a password for receiving the surrounding image based on the first authentication-related information read on the first reading screen 70 and the second authentication-related information read on the second reading screen 72, to perform authentication for receiving the surrounding image; When the identification information and password entered on the authentication screen 68 match the genuine identification information and password, a recording playback screen 76 or a real-time display screen 78 (image display screen) showing the surrounding image is displayed. is displayed on the display device 310. It is characterized by:

[0105] According to the mobile terminal 30 of this embodiment, when first authentication-related information related to one of the identification information and password for receiving peripheral video of the construction machine 20 and second authentication-related information related to the other are separately displayed on the construction machine 20, the identification information and password can be easily input. Furthermore, the mobile terminal 30 can be used as a part of a highly secure monitoring system.

[0106] The construction machine 20 according to this embodiment is capable of transmitting surrounding images to an external device. The construction machine 20 is A first camera 200 that captures surrounding images; A video recording device 202 that records surrounding images captured by the first camera 200 as moving or still images; A wireless LAN device 204 that transmits the surrounding video recorded in the video recording device 202 to an external device such as a mobile terminal 30; a first nameplate 208 disposed outside the cab of the construction machine 20 and displaying first authentication-related information related to either identification information or a password for receiving peripheral images; A second nameplate 210 is arranged in the cab and displays second authentication-related information related to the other of identification information or a password for receiving a surrounding image. Equipped It is characterized by:

[0107] Although the embodiments of the present invention have been described in detail above, the present invention is not limited to the above-described embodiments, and various design modifications can be made without departing from the spirit of the present invention as described in the claims. [Explanation of symbols]

[0108] 10 monitoring system, 20 construction machinery, 30 mobile terminal (monitoring device), 40 management server (external server), 68 construction machinery new registration screen (authentication screen), 70 PIN reading screen (first reading screen), 72 communication address reading screen (second reading screen), 74 monitoring management screen (display selection screen), 76 recording playback screen (video display screen), 78 real-time display screen (video display screen), 80 password change screen, 200 first camera, 202 video recording device, 204 wireless LAN device (first wireless communication device), 208 first nameplate (first authentication related information display section), 210 second nameplate (second authentication related information display section), 212 password initialization button, 220, 222 two-dimensional barcode, 300 second camera, 302 second wireless communication device, 306 terminal control device (monitoring control device), 310 display device, 408 Construction machinery database, 665 icons

Claims

1. A monitoring system that displays an image of the surroundings of a construction machine on a monitoring device located outside the construction machine, The construction machine includes: A first camera that captures an image of the surroundings of the construction machine; a video recording device that records the surrounding image captured by the first camera as a moving image or a still image; a first wireless communication device that transmits the surrounding image recorded in the image recording device to the monitoring device or an external server; a first authentication-related information display unit arranged outside a cab of the construction machine and configured to display first authentication-related information related to one of identification information or a password for receiving the peripheral image; a second authentication-related information display unit arranged in the driver's cab and configured to display second authentication-related information related to the other of the identification information or the password for receiving the peripheral image; Equipped with The monitoring device comprises: A second wireless communication device that communicates with the construction machine or the external server; a display device that displays the surrounding image received via the second wireless communication device; Monitoring and control device having The monitoring control device includes: an authentication screen for inputting identification information and a password for receiving the peripheral image; When the identification information and password entered on the authentication screen match the genuine identification information and password, a video display screen showing the surrounding video is displayed. is displayed on the display device. A monitoring system comprising:

2. The first authentication-related information includes an identification number of the construction machine, The identification information for receiving the surrounding image is composed of a combination of the identification number of the construction machine and a code indicating the type of the construction machine.

2. The monitoring system according to claim 1 .

3. the first authentication related information and the second authentication related information are displayed as two-dimensional barcodes on the first authentication related information display unit and the second authentication related information display unit, respectively; the monitoring device has a second camera that captures an image of the two-dimensional barcode; The monitoring control device reads the two-dimensional barcode captured by the second camera, and inputs identification information and a password for receiving the surrounding image based on the first authentication-related information and the second authentication-related information into the authentication screen.

3. The monitoring system according to claim 1 or 2.

4. The monitoring system includes a plurality of the construction machines, the monitoring device displays a list of the construction machines for which identification information and a password for receiving the surrounding video have been entered; In the list, an icon indicating the type of machine corresponding to the construction machine is displayed for each of the construction machines. The monitoring system according to any one of claims 1 to 3.

5. The identification information for receiving the surrounding image includes an identification number of the construction machine, The monitoring system further includes a construction machinery database that stores an identification number of the construction machinery in association with a model name and a machine number of the construction machinery corresponding to the identification number, The monitoring device displays the model name and the number of the construction machine acquired from the construction machine database in the list of the construction machines.

5. The monitoring system according to claim 4.

6. The construction machine is capable of transmitting both recorded images and real-time images from the first camera, The monitoring device comprises: displaying a display selection screen for selecting display of the recorded video or the real-time video; Displaying the recorded video or the real-time video according to a selection input on the display selection screen The monitoring system according to any one of claims 1 to 5.

7. The monitoring device comprises: displaying a password change screen for changing a password for receiving the peripheral video; A new password input on the password change screen is transmitted to the first wireless communication device; The first wireless communication device uses the received new password. The monitoring system according to any one of claims 1 to 6.

8. The construction machine is provided with an initialization button for initializing a password for receiving the peripheral image.

8. The monitoring system according to claim 7.

9. A monitoring device that receives and displays images of the surroundings of a construction machine, The monitoring device comprises: A second camera; A second wireless communication device that communicates with the construction machine or an external server; a display device that displays the surrounding image received via the second wireless communication device; Monitoring and control device having The monitoring control device includes: a first reading screen requesting that first authentication-related information related to either identification information or a password for receiving the surrounding image, which is displayed on a first authentication-related information display unit arranged on the construction machine, be read by the second camera; a second reading screen requesting that second authentication-related information related to the other of the identification information or the password for receiving the surrounding image, which is displayed on a second authentication-related information display unit arranged on the construction machine within the cab of the construction machine, be read by the second camera; an authentication screen for performing authentication for receiving the surrounding image by inputting identification information and a password for receiving the surrounding image based on the first authentication related information read on the first reading screen and the second authentication related information read on the second reading screen; When the identification information and password entered on the authentication screen match the genuine identification information and password, a video display screen showing the surrounding video is displayed. is displayed on the display device. A monitoring device comprising:

10. A construction machine capable of transmitting surrounding images to an external device, The construction machine includes: A first camera that captures the surrounding image; a video recording device that records the surrounding image captured by the first camera as a moving image or a still image; a first wireless communication device that transmits the peripheral image recorded in the image recording device to the external device; a first authentication-related information display unit arranged outside a cab of the construction machine and configured to display first authentication-related information related to one of identification information or a password for receiving the peripheral image; a second authentication-related information display unit arranged in the driver's cab and configured to display second authentication-related information related to the other of the identification information or the password for receiving the peripheral image; Equipped A construction machine characterized by:

Images