Construction site support system

Abstract

To provide a mechanism that enables easy grasping of the location of charging equipment when the entire charging equipment is movable over a relatively wide area.SOLUTION: A construction site support system for charging equipment that is movable and capable of charging electric machinery operable at a construction site, the system comprising: an information acquisition part configured to acquire location information of the charging equipment; and a display generation part configured to superimpose a first location display indicating a position of the charging equipment on a site display indicating the construction site based on the location information of the charging equipment.SELECTED DRAWING: Figure 7

Description

[Technical Field]

[0001] The present disclosure relates to a construction site support system. [Background technology]

[0002] 2. Description of the Related Art A charging stand is known in which a charger main body is fixed and a movable connector storage section is provided that is movable relative to the charger main body. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2014-166003 Summary of the Invention [Problem to be solved by the invention]

[0004] However, in the conventional technology described above, the charger body is fixed, and the movable connector housing has a limited range of movement. If the entire charging equipment is movable over a relatively wide range, it would be more convenient, but it would be difficult to determine the location of the charging equipment.

[0005] Therefore, an object of the present disclosure is to provide a mechanism that makes it possible to easily determine the location of charging equipment when the entire charging equipment is movable over a relatively wide range. [Means for solving the problem]

[0006] In one aspect, the present invention provides a charging system including: an information acquisition unit that acquires location information of a charging facility that is capable of charging an electric machine that can operate at a construction site and is movable; and A construction site support system is disclosed that includes a display generation unit that superimposes a first position display indicating the position of the charging facility on a site display that shows the construction site based on the position information of the charging facility. [Effects of the Invention]

[0007] According to the present disclosure, it is possible to provide a mechanism that allows the location of charging equipment to be easily determined when the entire charging equipment is movable over a relatively wide range. [Brief explanation of the drawings]

[0008] [Figure 1] 1 is a schematic diagram showing the overall configuration of a construction site support system according to an embodiment of the present invention; [Figure 1A] FIG. 2 is a diagram illustrating an example of a hardware configuration of a field support server. [Figure 2] 1 is a perspective view schematically illustrating the entire portable charging equipment according to the present embodiment. [Figure 3] FIG. 2 is a schematic diagram illustrating the configuration of a charging circuit section of the charging device. [Figure 4] FIG. 2 is a perspective view schematically illustrating a fixed state of the portable charging equipment. [Figure 5] FIG. 2 is a schematic diagram of a control system of the portable charging equipment. [Figure 6] FIG. 1 is a diagram illustrating, from above, an example of a construction site where the portable charging equipment of the present embodiment is suitable for use. [Figure 7] FIG. 2 is a block diagram illustrating the functions of a field support server according to the present embodiment. [Figure 8] FIG. 10 is a diagram illustrating an example of a display image displayed on a display unit of a user terminal running a field support app. [Figure 9] FIG. 10 is a diagram illustrating another example of a display image displayed on the display unit of a user terminal that is running a field support app. DETAILED DESCRIPTION OF THE INVENTION

[0009] Each embodiment will be described in detail below with reference to the accompanying drawings. Note that the dimensional ratios in the drawings are merely examples and are not limiting. Furthermore, shapes and the like in the drawings may be partially exaggerated for the sake of explanation. Furthermore, in the drawings, for ease of viewing, reference symbols may be assigned only to some of the parts that exist with the same attribute.

[0010] FIG. 1 is a schematic diagram showing the overall configuration of a construction site support system 500 according to this embodiment.

[0011] The construction site support system 500 includes one or more portable charging facilities 1, a user terminal 60, and a site support server 80.

[0012] The portable charging equipment 1, the user terminal 60, and the on-site support server 80 are connected via a network 4. The user terminal 60 and the on-site support server 80 can communicate with each other via the network 4. Hereinafter, unless otherwise specified, a user refers to one user associated with one or more user terminals 60.

[0013] The portable charging equipment 1 is portable (movable) and can charge the work machine to be charged. The work machine to be charged can be any type, but is typically a work machine whose power source is an electric motor. The type of work machine may be a backhoe, breaker, crusher, grabber, dump truck, various cranes, etc.

[0014] The portable charging equipment 1 will be described in detail later with reference to FIGS.

[0015] The network 4 may include the Internet, a wide area network (WAN), a wireless communication network, a wired network, or any combination thereof.

[0016] The user terminal 60 is, for example, a smartphone or a mobile phone, but may also be a wearable terminal (for example, a smart watch, a ring, etc.), a remote control, etc.

[0017] The user terminal 60 has a built-in input unit 62. The input unit 62 may include one or more of various input units such as a keyboard, a touch panel, a voice recognition device, a gesture recognition device, etc. A user can provide various inputs to the user terminal 60 via the input unit 62.

[0018] The user terminal 60 includes a display unit 64. The display unit 64 may be a liquid crystal display, an organic EL (Electro-Luminescence) display, etc. In addition to the display unit 64, the user terminal 60 may also include an output device such as a speaker.

[0019] An application according to this embodiment (hereinafter referred to as the "on-site support app") is installed on the user terminal 60. The user terminal 60 described below is realized by executing the on-site support app. The on-site support app may require registration of user information (user ID) and the like as a condition for use. Hereinafter, the user terminal 60 associated with a user means a user terminal 60 on which the on-site support app runs when logged in with the user ID associated with that user. Note that, in this case, the on-site support app is a so-called native app implemented in the user terminal 60, but it may also be in another format such as a web app.

[0020] The on-site support server 80 is in the form of a server, and is formed by, for example, a server computer. The on-site support server 80 may be realized by a plurality of server computers. For example, the on-site support server 80 may be realized by the cooperation of a plurality of server computers located in different locations.

[0021] 1A is a diagram showing an example of the hardware configuration of the on-site support server 80. The hardware configuration of the user terminal 60 may be the same as the hardware configuration of the on-site support server 80, except that it includes the input unit 62 and display unit 64 described above.

[0022] In the example shown in FIG. 1A, the on-site support server 80 includes a control unit 101, a main memory unit 102, an auxiliary memory unit 103, a drive device 104, a network I / F unit 106, and an input unit 107.

[0023] The control unit 101 is a calculation device that executes programs stored in the main memory unit 102 and the auxiliary memory unit 103, and receives data from the input unit 107 or a storage device, calculates and processes it, and then outputs it to a storage device or the like.

[0024] The main memory unit 102 is a read-only memory (ROM), a random access memory (RAM), etc. The main memory unit 102 is a storage device that stores or temporarily saves programs and data, such as an operating system (OS), which is basic software executed by the control unit 101, and application software.

[0025] The auxiliary storage unit 103 is a storage device such as an HDD (Hard Disk Drive) or an SSD (Solid State Drive) that stores data related to application software and the like.

[0026] The drive device 104 reads the program from a recording medium 105, such as a flexible disk, and installs it in a storage device.

[0027] A predetermined program is stored in the recording medium 105. The program stored in the recording medium 105 is installed in the on-site support server 80 via the drive device 104. The installed predetermined program can be executed by the on-site support server 80.

[0028] The network I / F unit 106 is an interface between the on-site support server 80 and peripheral devices, user terminals 60, etc., which are connected via the network 4 and have a communication function.

[0029] The input unit 107 includes a keyboard equipped with cursor keys, numeric input keys and various function keys, a mouse, a touch pad, and the like.

[0030] 1A, the various processes described below can be realized by having the on-site support server 80 execute a program. Alternatively, the program can be recorded on a recording medium 105, and the on-site support server 80 can read the program from the recording medium 105 to realize the various processes described below. Various types of recording media can be used for the recording medium 105. For example, the recording medium 105 may be a recording medium that records information optically, electrically, or magnetically, such as a CD (Compact Disc)-ROM, a flexible disk, or a magneto-optical disk, or a semiconductor memory that records information electrically, such as a ROM or a flash memory.

[0031] Next, the portable charging equipment 1 will be described with reference to Figs. 2 to 6, and then the configurations of the user terminal 60 and the site support server 80 related to the operation of the construction site support system 500 will be described.

[0032] Fig. 2 is a perspective view schematically showing the entire portable charging equipment 1 according to this embodiment. Fig. 3 is a schematic diagram of the configuration of the charging circuit unit 22 of the charging device 20. Fig. 4 is a perspective view schematically showing the fixed state of the portable charging equipment 1. In Fig. 4, the symbol G indicates the ground.

[0033] The portable charging equipment 1 is typically installed in a manner that it is supported on the ground G (see FIG. 4), but may also be used inside a building or the like.

[0034] The portable charging equipment 1 includes a stand 10 and a charging device 20.

[0035] The base 10 securely supports the charging device 20. The charging device 20 may be secured by any method, such as bolting or welding. The base 10 has sufficient strength and rigidity to support the weight of the charging device 20. The base 10 may be in the form of a metal plate or may have a metal frame with a lattice structure.

[0036] In this embodiment, the gantry 10 has a substantially rectangular outer shape when viewed from above, but the outer shape is arbitrary.

[0037] The platform 10 can be mechanically connected to a transport machine, and when connected to the transport machine, can be moved by the transport machine.

[0038] In this embodiment, the gantry 10 is provided with a crane hoisting device 30. The crane hoisting device 30 may be an eyebolt or the like. The crane hoisting device 30 may be provided at each of the four corners of the gantry 10 (the four corners when viewed from above), for example.

[0039] In this case, the platform 10 can be mechanically connected to a crane as a transport machine, and can be moved by the crane when mechanically connected to the crane. Specifically, the hoisting device 30 can be hung on a crane hook, and the portable charging equipment 1 can be suspended and moved by the crane. In this case, in the case of a fixed crane, the range of movement of the portable charging equipment 1 is determined by the length of the crane's jib or boom, etc. Note that any type of crane can function as a transport machine, and may be mobile or fixed.

[0040] In this embodiment, the locations of the crane hoisting devices 30 are arbitrary, but preferably, they may be set so that the centroid of the shape connecting the respective locations in top view approximately coincides with the center of gravity of the portable charging equipment 1. In this case, the posture of the portable charging equipment 1 can be stabilized when transported by the crane.

[0041] In this embodiment, the pedestal 10 has grooves 32 into which the forks of a forklift can be inserted. Two grooves 32 are provided in a pair, in parallel. The grooves 32 are provided in the form of downward recesses on the underside of the pedestal 10. Instead of the grooves 32, holes (insertion holes) with closed bottoms may be used.

[0042] In this case, the platform 10 can be mechanically connected to a forklift as a transport machine, and can be moved by the forklift when mechanically connected to the forklift. Specifically, the two forks of the forklift can be passed through the grooves 32, and the portable charging equipment 1 can be lifted and moved by the forklift. In this case, the range of movement of the portable charging equipment 1 is determined according to the range of movement of the forklift.

[0043] In this embodiment, the two grooves 32 may be provided at any positions, but preferably, the centers thereof may be set so as to substantially coincide with the center of gravity of the portable charging equipment 1. In this case, the posture of the portable charging equipment 1 can be stabilized when it is transported by a forklift.

[0044] The pedestal 10 may have wheels 18 that can be supported on the ground. When the portable charging equipment 1 is placed on a horizontal surface, the wheels 18 can rotate around a horizontal axis. The wheels 18 may be supported on the pedestal 10 in a steerable manner. That is, the rotation axis of the wheels 18 may be supported so as to be rotatable around a vertical axis relative to the pedestal 10. Alternatively, the wheels 18 may be provided in a non-steerable manner, for example, for straight travel. Furthermore, the wheels 18 may be supported on the pedestal 10 via springs and / or dampers.

[0045] When the pedestal 10 has such wheels 18, it becomes possible for the pedestal 10 to move by itself. For example, after moving the pedestal 10 by a crane, the wheels 18 can be used to move the pedestal 10 to a desired position. In this case, the portable charging equipment 1 may be moved by a towing vehicle by attaching a hook from the towing vehicle to the hoisting device 30 for the crane. In a modified example, the wheels 18 may be electrically driven. That is, the wheels 18 may be drive wheels. In this case, automatic control of acceleration / deceleration, stopping, steering, etc. may be realized in response to instructions from a user.

[0046] The wheels 18 may be retractable (see arrow R10 in FIG. 2). That is, the wheels 18 may be changeable between a traveling (self-propelled) state in which they protrude downward from the bottom surface of the gantry 10 and a retracted state in which they are positioned above the bottom surface of the gantry 10. In the retracted state, the gantry 10 is directly supported on the ground using the entire bottom surface, thereby improving the positional stability when installed.

[0047] The mount 10 has a through-hole 14 through which a fastener 90 passes, one end of which is fixed to the ground. The fastener 90 may be, for example, an anchor bolt or the like. In this case, when the mount 10 attempts to move relative to the ground, the fastener 90 hits the side wall of the through-hole 14, thereby restricting further movement of the mount 10. In this way, the mount 10 can easily prevent unintended movement at the installed position by utilizing the fastener 90. It should be noted that the use of through-hole 14 is not limited to the above-described method. For example, when a roof needs to be installed to protect from rain, through-hole 14 may be used to fix a pole supporting the roof, or when a fence to prevent approach is installed around charging device 20, the fence may be used instead of fixing part 90.

[0048] The stand 10 may also be provided with various output ports 19 for charging tools, etc. In this case, it becomes possible to charge tools other than the work machine.

[0049] As described above, the charging device 20 is fixed to the top of the stand 10. The charging device 20 has a charging circuit section 22 (see FIG. 3), a first connection section 24 that can be electrically connected to an external power source, and a second connection section 26 that can be electrically connected to the work machine to be charged. Note that existing commercially available products may be used to form part or all of the charging device 20.

[0050] 3, the charging circuit unit 22 includes a converter 220, an inverter 222, a step-up transformer 224, and a rectifier 226.

[0051] Converter 220 receives a three-phase AC voltage (e.g., 200 V) from first connection 24 as an input and generates a DC voltage (e.g., 350 V). Inverter 222 receives the DC voltage from converter 220 as an input and generates a high-frequency AC voltage. Step-up transformer 224 steps up the high-frequency AC voltage. Note that step-up transformer 224 may be an insulating transformer. Rectifier 226 rectifies and smoothes the stepped-up AC waveform and outputs it to second connection 26. The first connection unit 24 may be provided on a main body (case) of the charging device 20. The first connection unit 24 may include a power supply cable (not shown). In this case, one end of the power supply cable is electrically connected to the charging circuit unit 22, and the other end is electrically connectable to an external power supply. For example, the other end of the power supply cable may be in the form of a socket. Alternatively, the power supply cable may be separate from the first connection unit 24. In this case, one end of the power supply cable is electrically connectable to the first connection unit 24, and the other end is electrically connectable to an external power supply.

[0052] Second connection unit 26 may be provided on the main body (case) of charging device 20. Second connection unit 26 may include a charging cable (not shown). In this case, one end of the charging cable is electrically connected to rectifier 226, and the other end is electrically connectable to the work machine to be charged. Alternatively, the charging cable may be separate from second connection unit 26. In this case, one end of the charging cable is electrically connectable to second connection unit 26, and the other end is electrically connectable to the work machine to be charged. In either case, the other end of the charging cable (the end connected to the work machine to be charged) may be in the form of a charging connector. The charging connector may conform to a corresponding standard (for example, CHAdeMO). Multiple types of charging cables and / or charging connectors may be provided depending on the type of standard.

[0053] 3 is merely an example and is not limited to this. For example, converter 220, inverter 222, and rectifier 226 may be omitted. In this case, a charging cable may be electrically connectable to the secondary side of step-up transformer 224.

[0054] FIG. 5 is a schematic diagram of the control system of the portable charging equipment 1. As shown in FIG.

[0055] As shown in Fig. 5, the portable charging equipment 1 includes a processing device 50. The processing device 50 includes a CPU (Central Processing Unit) and a storage device, and performs various arithmetic processing. The storage device may include a main storage device such as a RAM (Random Access Memory) or a ROM (Read Only Memory), and an auxiliary storage device such as an HDD (Hard Disk Drive) or an SSD (Solid State Drive).

[0056] The above-described charging circuit section 22 is connected to the processing device 50. The processing device 50 controls the charging circuit section 22, thereby controlling the charging operation for the work machine to be charged.

[0057] An input / output device 51 is connected to the processing device 50. The input / output device 51 may include, as input devices, a keyboard, various switches, buttons, a remote controller, a microphone, etc. Furthermore, the input / output device 51 may include, as output devices, a speaker or a display. A user can input various instructions (such as an instruction to start or stop charging) to the processing device 50 via the input / output device 51. Furthermore, the user may be able to grasp, via the output device, the status of the charging device 20 (for example, whether charging is in progress) and the status of the work machine to be charged (for example, the percentage of charge).

[0058] A position measuring device 52 is connected to the processing device 50. The position measuring device 52 includes, for example, an antenna for receiving satellite signals, and performs positioning of the antenna position (i.e., the position of the portable charging facility 1) based on satellite signals from a plurality of satellites. The plurality of satellites may be satellites related to the GNSS (Global Navigation Satellite System).

[0059] A communication device 54 is connected to the processing device 50. The communication device 54 transmits various information such as the positioning results of the position measuring device 52 and the state of the charging circuit unit 22 to an external device (for example, a user terminal 60 or an on-site support server 80). The communication device 54 may also receive various instructions and data from an external device.

[0060] 5 is merely an example, and some components may be omitted or other components may be added. For example, the position measuring device 52 and the communication device 54 may be omitted. Also, some of the processing of the processing device 50 may be implemented by an external server.

[0061] Next, an example of a suitable usage environment for the portable charging equipment 1 of this embodiment will be described with reference to FIG.

[0062] FIG. 6 is a diagram showing a schematic top view of an example of a construction site where the portable charging equipment 1 of this embodiment is suitable for use.

[0063] 6, a crane 180 is placed, and an electric work machine 150, which operates using an internal battery (not shown) as a power source, is working on the construction site. The work machine 150 is assumed to be working to load earth and sand (or waste materials) onto a dump truck 152 (excavation and loading work).

[0064] At the construction site, two distribution boards 160 are installed as external power sources. Preferably, there are two or more distribution boards 160 in different locations. The distribution boards 160 may be dedicated to the portable charging equipment 1 or may be shared with other power supply targets.

[0065] Note that the crane 180 is a crane for construction work, and does not need to be used only (dedicated) for transporting the portable charging facility 1. The number of cranes 180 may be two or more.

[0066] Here, it is assumed that the portable charging equipment 1 is moved (see arrow R50) from position P0 (shown by dotted line) to position P1 (shown by solid line) in accordance with the position of the work machine 150. In Fig. 6, the range inside the circular dotted line C500 roughly corresponds to the range within which the portable charging equipment 1 can be moved by the crane 180.

[0067] In this case, as described above, the user (on-site worker) can hang the hook of the crane 180 on the crane hoisting tool 30, hoist the portable charging equipment 1 using the crane 180, and move the portable charging equipment 1 from position P0 to position P1. Note that, during movement, position information of the portable charging equipment 1 (measurement results by the position measuring device 52) may be notified to the operator of the crane 180. At this time, the position information may be superimposed on an image display that shows the site situation from the line of sight of the crane operator. In this case, the crane operator can easily lower the portable charging equipment 1 to position P1 while visually checking and monitoring the position information. Note that, in a modified example, some or all of the operations of the crane 180 may be realized automatically.

[0068] When the portable charging equipment 1 moves to position P1, the user releases the hook of the crane 180 from the crane hoisting device 30. At this time, a fixing device 90 that passes through the through-hole 14 may be installed to substantially disable the movement of the portable charging equipment 1. Alternatively, when the portable charging equipment 1 is lowered from the crane 180, the portable charging equipment 1 may be lowered so that the existing fixing device 90 passes through the through-hole 14. Next, the user electrically connects the distribution board 160 near position P1 and the portable charging equipment 1 with the power supply cable 161, and then the preparation is complete.

[0069] When the charge state of the battery of the work machine 150 decreases, the operator of the work machine 150 moves the work machine 150 close to the portable charging equipment 1 (within the reach of the charging cable) in order to charge it. Then, by electrically connecting the portable charging equipment 1 to the work machine 150, a state in which charging can begin can be created.

[0070] However, work machines are equipped with batteries with relatively large capacities, and tend to take a long time to charge from 0% to 100% (for example, to a fully charged state). Also, work machines tend to travel at relatively slow speeds or be fixed, and with fixed charging facilities, travel times also tend to be long.

[0071] In this regard, according to this embodiment, as shown in Fig. 6, the portable charging equipment 1 can be moved, so the travel distance (and accompanying travel time) of the work machine 150 until it moves close to the portable charging equipment 1 can be reduced. In other words, the travel distance L51 from the portable charging equipment 1 at position P1 can be made significantly shorter than the travel distance L52 from the portable charging equipment 1 at position P0. This difference becomes even more pronounced when the number of charging operations becomes relatively large.

[0072] In this way, according to this embodiment, the portable charging equipment 1 can be used while being moved according to the position (work position) of the work machine 150. As a result, it is possible to reduce the number of charging equipment required at one construction site. Such a portable charging equipment 1 is suitable for cases where there are many work machines such as the work machine 150. In other words, the availability of the portable charging equipment 1 makes it possible to increase the number of work machines such as the work machine 150 and their operating rate.

[0073] Generally, the ground at a construction site is not smooth, and it may be difficult or impossible to travel on normal wheels (for example, wheels 18 of the portable charging equipment 1). In this regard, according to this embodiment, the portable charging equipment 1 can be lifted and transported by a crane 180, and therefore, the range of movement of the portable charging equipment 1 can be easily expanded even at construction sites with a lot of uneven ground.

[0074] Next, further characteristic configurations of the construction site support system 500 will be described with reference to FIG. 7 and subsequent figures.

[0075] FIG. 7 is a block diagram that shows the outline of the functions of the site support server 80 of this embodiment. Note that, although the following description of FIG. 7 will be given for one construction site, the same may be true for other construction sites. In other words, the functions described below may operate for each construction site. Note that, hereinafter, a portable charging equipment 1 refers to the portable charging equipment 1 installed at a corresponding one construction site, and a work machine refers to a work machine operating at that construction site.

[0076] As shown in FIG. 7, the on-site support server 80 includes an information acquisition unit 801, a display generation unit 802, a charging facility movement management unit 803, a charging facility information storage unit 804, and a machine information storage unit 805.

[0077] The information acquisition unit 801 to the charging facility movement management unit 803 can be realized by the control unit 101 shown in FIG. 1A executing one or more programs stored in a storage device such as the main storage unit 102. The charging facility information storage unit 804 and the machine information storage unit 805 can be realized by the auxiliary storage unit 103 shown in FIG. 1A.

[0078] The information acquisition unit 801 acquires the position information of the portable charging equipment 1. As described above, the position information of the portable charging equipment 1 may be the positioning result obtained by the position measurement device 52, and may be transmitted from the communication device 54 to the on-site support server 80.

[0079] The information acquisition unit 801 may also acquire position information of the work machine 150. The position information of the work machine 150 may be generated using a GPS or the like within the work machine 150. The information acquisition unit 801 may also acquire charge state information that indicates the state of charge (SOC) of a battery (not shown) mounted on the work machine 150. The battery of the work machine 150 is the battery that is to be charged by the portable charging equipment 1.

[0080] The display generation unit 802 generates various images to be displayed on the display unit 64 of the user terminal 60 that is running the on-site support app. The display generation unit 802 may transmit image data to the user terminal 60, or may generate various images using a drawing function on the user terminal 60 side.

[0081] In this embodiment, the display generation unit 802 superimposes an equipment display (an example of a first position display) indicating the position of the portable charging equipment 1 on a site display indicating the construction site, based on the position information of the portable charging equipment 1. Fig. 8 is a diagram showing an example of a display image G80 displayed on the display unit 64 of the user terminal 60 running the site support app.

[0082] The display image G80 includes a site image G82 that shows the construction site. The site image G82 is optional and may be an image that shows a bird's-eye view of the target construction site. The site image G82 may be generated based on image data obtained by a drone or the like, or may be generated using computer graphics technology. In the example shown in FIG. 8, three portable charging equipment 1 and three cranes 180 are placed at the construction site. Also, three work machines 150 are in operation. In this case, an equipment display G85 that shows the portable charging equipment 1 is superimposed on the site image G82 along with a display G180 that shows the crane 180 and a display G150 that shows the work machine 150 (an example of a second position display). This allows the user to easily understand where the portable charging equipment 1 is located at the construction site.

[0083] The display generation unit 802 may further superimpose a range display indicating the range over which the crane 180 can move the portable charging equipment 1 on the site display. In the example shown in Fig. 8 , the range display G88 is shown as a circle associated with the corresponding crane 180. Note that the range display G88 does not need to accurately indicate the range over which the crane 180 can move the portable charging equipment 1, and may be an approximate range. By looking at the range display G88, the user can easily understand the range over which the portable charging equipment 1 can be moved.

[0084] The charging equipment movement management unit 803 schedules the movement of the portable charging equipment 1. For example, as shown in FIG. 6 and described above, the charging equipment movement management unit 803 may schedule the movement of the portable charging equipment 1 from position P0 (shown by a dotted line) to position P1 (shown by a solid line) in accordance with a change in the work position of the work machine 150. In this case, the change in the work position of the work machine 150 may be detected based on the position information of the work machine 150 acquired by the information acquisition unit 801. Alternatively, the charging equipment movement management unit 803 may schedule the movement of the portable charging equipment 1 based on a movement request for the portable charging equipment 1 from a user. In this case, the movement request may be input via the input unit 107 of the user terminal 60, and may include an input specifying a movement destination.

[0085] When the charging equipment movement management unit 803 schedules the movement of the portable charging equipment 1 in this manner, the display generation unit 802 may superimpose a display indicating the planned movement of the portable charging equipment 1 on the on-site display. FIG. 9 is a diagram showing an example of a display image G90 displayed on the display unit 64 of the user terminal 60 while the on-site support app is running. For example, in the example shown in FIG. 9, a display G89 is superimposed on the planned position of the portable charging equipment 1 after movement as a display indicating the planned movement of the portable charging equipment 1. The display G89 may be in a form different from the display showing the current portable charging equipment 1. In this case, the user can easily grasp the planned movement destination position of the corresponding portable charging equipment 1. At this time, additional information such as the planned movement time may also be displayed.

[0086] The charging facility information storage unit 804 stores various information related to the portable charging facility 1. For example, the charging facility information storage unit 804 may store, for each portable charging facility 1, information indicating the location information of the portable charging facility 1, whether the work machine is being charged, and the like.

[0087] Various statuses related to the work machines are stored in the machine information storage unit 805. For example, the machine information storage unit 805 may store, for each work machine, information indicating the position information of the work machine, the charge state (%) of the work machine, whether charging from the portable charging equipment 1 is in progress, work schedules, etc.

[0088] The information stored in the charging equipment information storage unit 804 and the machine information storage unit 805 may be used by the charging equipment movement management unit 803. In this case, the charging equipment movement management unit 803 can efficiently plan the movement of each portable charging equipment 1 by taking into account the information stored in the charging equipment information storage unit 804 and / or the machine information storage unit 805. For example, when a work machine is found whose state of charge is lower than a predetermined threshold, the charging equipment movement management unit 803 may plan to move the portable charging equipment 1 near the work machine based on the location information of the work machine. In this case, the portable charging equipment 1 to be moved may be selected to be one that is not currently charging (or not scheduled to charge) the work machine and is relatively close to the corresponding work machine.

[0089] Although each embodiment has been described in detail above, it is not limited to the specific embodiment, and various modifications and changes are possible within the scope of the claims. It is also possible to combine all or a plurality of components of the above-described embodiments. [Explanation of symbols]

[0090] 4 Network 10 Mounting stand 20 Charging device 22 Charging circuit section 50 Processing equipment 51 Input / Output Devices 52 Position measuring device 54 Communication equipment 60 User terminals 62 Input section 64 Display section 80 On-site support server 101 Control section 102 Main memory 103 Auxiliary storage 104 Drive device 105 Recording Media 106 Network I / F section 107 Input section 150 Work Machinery 152 Dump Truck 160 Distribution board 161 Power Cable 180 Crane 220 Converter 222 Inverter 224 Step-up transformer 226 Rectifier 500 Construction site support system 801 Information acquisition department 802 Display generation section 803 Charging equipment movement management department 804 Charging equipment information storage unit 805 Machine information storage unit

Claims

1. an information acquisition unit that acquires location information of a charging facility that is capable of charging an electric machine that can operate at a construction site and is movable; a display generation unit that superimposes a first position display indicating the position of the charging facility on a site display that shows the construction site based on the position information of the charging facility.

2. The information acquisition unit further acquires position information of the electric machine, The construction site support system according to claim 1 , wherein the display generation unit further superimposes a second position display indicating the position of the electric machine on the site display based on the position information of the electric machine.

3. a lifting machine capable of moving the charging equipment is installed at the construction site; The construction site support system according to claim 1 , wherein the display generation unit further superimposes, on the site display, a range display indicating a range within which the lifting machine can move the charging equipment.

4. Further, a charging facility movement management unit that plans the movement of the charging facility, The construction site support system according to claim 1 , wherein the display generation unit further superimposes a display indicating a movement schedule of the charging facility on the construction site display.

5. the information acquisition unit further acquires, together with the position information of the electric machine, charge state information representing a charge state of a battery mounted on the electric machine; 4. The construction site support system according to claim 1, further comprising: a charging facility movement management unit that plans movement of the charging facility based on the charging state information related to each of the plurality of electric machines and the position information related to each of the plurality of electric machines.

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