Crane work management system and management unit

Abstract

To provide a work management system for cranes and a management device that can excellently manage a plurality of cranes located at a work site.SOLUTION: A work management system 100 for cranes 20 is equipped with a timing detection unit 21 and a position detection unit 22 that acquire load handling operation information on load handling operation for each of the plurality of cranes 20, and a management device 10 that collects and integrates load handling operation information for each of the plurality of cranes 20. This allows the management device 10 to collect the load handling operation information from each of the plurality of cranes 20 located at the work site, and to integrate the collected load handling operation information for each of the cranes 20. In addition, the management device 10 can output the load handling operation information in a managed state. This allows the user to refer to the load handling operation information of the plurality of cranes 20 located at the work site in an integrated state.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to a crane work management system and a management device. [Background technology]

[0002] Conventionally, a known crane is as described in Patent Document 1. In the crane described in Patent Document 1, a camera is provided on the traveling body, and the camera photographs blind spots from the driver's cab, thereby improving safety during operation of the crane. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2014-198630 A Summary of the Invention [Problem to be solved by the invention]

[0004] Here, as described above, by installing a camera on the crane, the photographic information obtained by the camera can be effectively utilized. For example, by having the camera photograph the surroundings of the crane, it becomes possible to grasp the work and the movement of people around the crane. This allows the operator to grasp the working status of a single crane and the surrounding situation.

[0005] However, at a crane work site, there are cases where multiple cranes are deployed. In this case, the work planner needs to manage the work of each crane at the entire work site. In response to this, a method of collecting and managing information on the work content of each crane at the work site individually in the form of reports, etc., is conceivable, but this method places a heavy burden on managing the entire work site, and may not be able to perform good management.

[0006] The present invention has been made to solve such problems, and has an object to provide a crane work management system and management device that can effectively manage multiple cranes deployed at a work site. [Means for solving the problem]

[0007] The crane work management system of the present invention is a crane work management system that manages work of multiple cranes deployed at a work site, and is equipped with an information acquisition unit that acquires loading and unloading operation information regarding the loading and unloading operations of each of the multiple cranes, and a management unit that collects and integrates the loading and unloading operation information acquired by the information acquisition units of the multiple cranes, and outputs the integrated loading and unloading operation information.

[0008] The crane work management system of the present invention includes an information acquisition unit that acquires loading / unloading operation information related to the loading / unloading operation of each of a plurality of cranes, and a management unit that collects and integrates the loading / unloading operation information of each of the plurality of cranes acquired by the information acquisition unit. This allows the management unit to collect loading / unloading operation information related to loading / unloading operations from each of a plurality of cranes arranged at a work site, and integrate the collected loading / unloading operation information of each crane. The management unit can also output the integrated loading / unloading operation information. This allows a user to refer to the integrated loading / unloading operation information of the plurality of cranes arranged at the work site. As described above, the plurality of cranes arranged at the work site can be well managed.

[0009] The management unit may be capable of embedding the loading / unloading operation information of each crane in a control chart represented in a global coordinate system set for the work site. In this case, the management unit can output what loading / unloading operation each crane performed in the global coordinate system. This allows the user to easily refer to what loading / unloading operation each crane performed in the entire work site.

[0010] The management unit may determine the position of the hoisting tool as the position of the load from the travel, rotation, and retraction movements of the crane. The travel, rotation, and retraction movements of the crane are information that can be acquired by equipment already installed on the crane. Furthermore, the position of the hoisting tool can be identified based on these movements. And the position of the load can be identified from the position of the hoisting tool. Therefore, the management unit can determine the position of the load using the equipment already installed on the crane.

[0011] The management unit may grasp the timing when the crane lifts the load and the timing when the load lands on the floor based on the detection result of the load meter provided on the crane. The load meter is a device that is already installed on the crane. Therefore, the management unit can grasp the timing when the load is lifted and the timing when the load lands on the floor using the device that is already installed on the crane.

[0012] The crane may have a photographing unit. This allows the management unit to acquire photographic information of the surroundings of each crane and link it to the management chart. This allows the user to effectively use the photographic information of each surrounding.

[0013] The crane may have legs extending in the vertical direction, and the imaging unit may be provided on the legs and capable of imaging from the horizontal direction. This allows the management unit to acquire imaging information obtained by imaging the surroundings of each crane from the horizontal direction. For example, if only an imaging unit is provided that images the state below the crane from above, the state around the crane can only be grasped in two dimensions. In contrast, when imaging information obtained by imaging from the horizontal direction is acquired, the state around the crane can be grasped in three dimensions.

[0014] The cargo handling operation information collected and integrated by the management unit may include information about the load involved in the cargo handling by the crane. In this case, the management unit can manage the operation of the crane by linking information about the load, such as the shape, size, center of gravity, and weight of the load.

[0015] The crane management system further includes a work planning unit that plans work for a plurality of cranes based on the cargo handling operation information integrated by the management unit, and the work planning unit may plan work using the suspended load related to the cargo handling by the crane and spatial information of the crane. This allows the user to make use of the cargo handling operation information integrated by the management unit in planning work.

[0016] The work planning unit may display information for planning the work on the output unit, thereby enabling the user to easily plan the work while visually checking the information.

[0017] The work planning unit may be capable of modifying the created plan. For example, when the planned work differs from the actual work, the plan can be modified.

[0018] The management unit may be capable of outputting the cargo handling operation information in real time, so that the user can quickly grasp the status of the crane.

[0019] The management unit may adjust the display mode according to the state of each crane and display the state of each crane on the output unit. In this case, the user can quickly visually grasp the state of the crane by checking the output unit.

[0020] The work management system may further include an information terminal that outputs loading / unloading operation information, and the information terminal may be capable of inputting information regarding at least the work content of the crane and the start and end of the work content. In this case, since it is possible to input information based on the work actually performed at the work site of each crane, it is possible to share information on actual work results at other locations.

[0021] The work management system 100 further includes a work planning section that plans work for multiple cranes based on the cargo handling operation information integrated by the management section, and the work planning section displays work information indicating the work content according to the time of the crane on the output section, and the output section visually displays the progress of the work information in real time. In this case, it becomes possible to check the actual progress of the work content planned by the work planning section in real time at each site.

[0022] The management device of the present invention is a management device that manages the work of multiple cranes arranged at a work site, collects and integrates loading and unloading operation information regarding the loading and unloading operations of each of the multiple cranes, and outputs the integrated loading and unloading operation information.

[0023] According to the management device of the present invention, it is possible to obtain the same functions and effects as the above-mentioned crane work management system. Effect of the Invention

[0024] According to the present invention, it is possible to provide a crane work management system and management device that can effectively manage a plurality of cranes arranged at a work site. [Brief description of the drawings]

[0025] [Figure 1] 1 is a block diagram showing a block configuration of a crane work management system according to an embodiment of the present invention. FIG. [Diagram 2] FIG. 2 is a plan view showing an example of an arrangement of multiple cranes at a work site. [Diagram 3] FIG. 3 is a side view of a portion of the crane shown in FIG. 2. [Figure 4] FIG. 11 is a diagram showing an example of an output mode of crane loading / unloading operation information. [Diagram 5] 4 is a flowchart showing the processing contents of a crane work management system according to the embodiment of the present invention. [Figure 6] FIG. 13 is a block diagram showing a block configuration of a management device of a crane work management system according to a modified example. [Figure 7] FIG. 11 is a diagram showing an example of an image output to an output unit. [Figure 8] FIG. 11 is a diagram showing an example of an image output to an output unit. [Figure 9] FIG. 11 is a diagram showing an example of an image output to an output unit. [Figure 10] FIG. 2 is a plan view showing the photographing range of a photographing unit provided on a crane at a work site. [Figure 11] 1 is a schematic diagram showing how an imaging unit provided on a crane images the surroundings of the crane. FIG. [Figure 12] FIG. 13 is a block diagram showing a crane work management system according to a modified example. [Figure 13] FIG. 11 is a diagram showing an example of an image output to an information terminal. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0026] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments of a crane work management system and a management device according to the present invention will be described with reference to the drawings.

[0027] FIG. 1 is a block diagram showing the block configuration of a crane work management system 100 according to an embodiment of the present invention. FIG. 2 is a plan view showing an example of the arrangement of multiple cranes 20 at a work site. FIG. 3 is a side view of some of the cranes 20 shown in FIG. 2. The work management system 100 is a system for managing multiple cranes 20 arranged at a work site. As shown in FIG. 1, the work management system 100 includes a management device 10 (management unit), an acquisition unit for various information provided in the crane 20, and an output unit 15.

[0028] First, an example of the arrangement and configuration of the crane 20 will be described with reference to Figs. 2 and 3. In this embodiment, a jib crane is exemplified as the crane 20. As shown in Fig. 2, a global coordinate system having an X-axis and a Y-axis is set for a work site where a plurality of cranes are arranged. For example, four cranes 20A, 20B, 20C, and 20D are arranged at the work site. The cranes 20A and 20B are arranged so as to be aligned along the Y-axis near the Y-axis. The cranes 20A and 20B can travel in the Y-axis direction along a rail 36 provided in parallel with the Y-axis. The cranes 20C and 20D are arranged so as to be aligned along the X-axis near the X-axis. The cranes 20C and 20D can travel in the X-axis direction along a rail 36 provided in parallel with the X-axis.

[0029] The cranes 20A, 20B, 20C, and 20D each include a jib 31 for suspending a load, a main body 32 for supporting the jib 31, a support column 34 for rotatably supporting the main body 32, and a running section 33 for supporting the support column 34 and running along a rail 36. A hoist 37 is attached to the tip of a wire extending from the jib 31, and the hoist 37 suspends a load 38. Therefore, the position of the load 38 coincides with the position of the hoist 37. The origins PGA, PGB, PGC, and PGD of the relative coordinates are set at the rotation centers of the cranes 20A, 20B, 20C, and 20D. The positions of the hoist 37 and the load 38 are set as coordinate points PCA, PCB, PCC, and PCD.

[0030] The jib 31 rotates together with the hoist 37 in the rotation direction DR, and the radial position of the hoist 37 can be changed depending on the size of the retraction radius relative to the main body 32. Therefore, the positions of the coordinate points PCA, PCB, PCC, and PCD can be moved within the range of the circle shown by the dashed line in FIG. 2. In addition, the positions of the coordinate points PCA and PCB can be changed to a traveling direction D1 parallel to the Y-axis direction by the cranes 20A and 20B traveling along the rail 36. The positions of the coordinate points PCC and PCD can be changed to a traveling direction D2 parallel to the X-axis direction by the cranes 20C and 20D traveling along the rail 36. The coordinate points PCA, PCB, PCC, and PCD of the cranes 20A, 20B, 20C, and 20D can be moved to positions that can avoid the factory building BD.

[0031] As shown in FIG. 1, the crane 20 includes a timing detection unit 21 (information acquisition unit), a position detection unit 22 (information acquisition unit), an imaging unit 23, and an information transmission / reception unit 24.

[0032] The timing detection unit 21 and the position detection unit 22 function as an information acquisition unit that acquires cargo handling operation information related to each cargo handling operation of the crane 20. The timing detection unit 21 is a device that can acquire information that can detect the lifting timing at which the load 38 is lifted by the hoist 37 and the landing timing at which the load 38 is landed on the floor. For example, the timing detection unit 21 is configured with a load meter that detects the load acting on the hoist 37. That is, the load measured by the load meter rises sharply at the lifting timing and decreases sharply at the landing timing. Therefore, the load measured by the load meter is information that makes it possible to detect the lifting timing and the landing timing.

[0033] The timing at which the load meter measures the load may be when the load stabilizes after lifting (several seconds after lifting). The timing detection unit 21 is not limited to a load meter as long as it can obtain information that enables detection of the lifting timing and the landing timing. For example, the timing detection unit 21 may be a camera that obtains image information that enables detection of the lifting timing and the landing timing by image processing, or control information such as motor torque may be used.

[0034] The position detection unit 22 is a device capable of acquiring information capable of detecting the position of the load 38. For example, the position detection unit 22 is configured by a position detection device that detects the traveling position of the crane 20, the rotation position of the jib 31, and the retracted position of the jib 31. That is, if the traveling position of the crane 20, the rotation position of the jib 31, and the retracted position of the jib 31 are determined, the positions of the hoist 37 and the load 38 can be specified. Therefore, the traveling position of the crane 20, the rotation position of the jib 31, and the retracted position of the jib 31 are information that enables the position of the load 38 to be detected. The position detection unit 22 is not particularly limited as long as it can acquire information that enables the position of the load 38 to be detected. For example, a position measuring device such as a GPS provided on the hoist 37 may be used as the position detection unit 22, and a distance from the rail end measured by a laser distance meter or the like may also be used.

[0035] The photographing unit 23 is composed of a camera that photographs the surroundings of the crane 20. For example, the photographing unit 23 includes a camera 23a provided at the top of the main body 32 and a camera 23b provided at the tip of the jib 31 (see FIG. 3). The camera 23a has a photographing range E1 that can photograph the surroundings of the main body 32 over a wide range. The camera 23b has a photographing range E2 that can photograph the surroundings of the suspended load 38. When the photographing unit 23 is provided in a rotating part, the rotation angle may be detected and correction may be applied so that the image is always in a fixed direction, or a mechanism may be provided to mechanically invert the photographing unit 23. The photographing unit 23 may acquire still images or videos as photographed information.

[0036] By using the photographing information acquired by the photographing unit 23, it is possible to grasp the state of logistics and the movement of people around the crane 20. The photographing timing of the photographing unit 23 is not particularly limited. For example, the photographing unit 23 may photograph at the timing of lifting and the timing of landing. The photographing unit 23 may also photograph while the suspended load 38 is being moved. The photographing unit 23 may also photograph immediately before the start of a day's work or immediately after the end of a day's work. Alternatively, the photographing unit 23 may constantly photograph during a day's work.

[0037] The information transmitting / receiving unit 24 transmits the acquired information to the management device 10. In addition, the information transmitting / receiving unit 24 receives information from the management device 10. The information transmitting / receiving unit 24 transmits and receives information by wireless communication.

[0038] The management device 10 is a device that collects and integrates the loading and unloading operation information of each of the multiple cranes 20 acquired by the timing detection unit 21 and the position detection unit 22. The management device 10 also outputs the integrated loading and unloading operation information. The management device 10 transmits the integrated loading and unloading operation information to the output unit 15 and outputs it via the output unit 15. The integrated loading and unloading operation information is information that indicates which crane 20 performed what loading and unloading operation, in a linked state. The management device 10 can embed the loading and unloading operation information of each crane in a control chart represented by a global coordinate system set for the work site. If the loading and unloading operation information of the crane is embedded in the control chart represented by the global coordinate system, the user can easily understand what loading and unloading operation the crane placed where in the entire work site performed. The user is, for example, a work planner who makes a work plan for each crane in an office. In this way, the loading and unloading operation information embedded in the control chart represented by the global coordinate system corresponds to the loading and unloading operation information in the integrated state.

[0039] Next, a specific configuration of the management device 10 will be described. The management device 10 includes an information acquisition unit 11, a calculation unit 12, an output control unit 13, and an information transmission / reception unit 14.

[0040] The information acquisition unit 11 acquires information acquired by the timing detection unit 21, the position detection unit 22, and the photographing unit 23 in each crane 20. The calculation unit 12 performs various calculation processes in the management device 10. Specifically, the calculation unit 12 grasps the position of the hoisting tool 37 from the traveling, rotating, and retracting operations of the crane 20 based on the information acquired by the position detection unit 22. For example, the calculation unit 12 converts the encoder information of the traveling unit 33, the rotating angle information of the jib 31, and the retracting radius information of the jib 31 into coordinates of the global coordinate system. The calculation unit 12 also grasps the position of the hoisting tool 37 as the position of the suspended load 38. Note that the calculation process for grasping the positions of the hoisting tool 37 and the suspended load 38 from the traveling, rotating, and retracting operations of the crane 20 may be entirely performed by the calculation unit 12, but the position detection unit 22 of the crane 20 may have a calculation unit and perform part or all of the calculation process.

[0041] The calculation unit 12 also determines the timing at which the crane 20 lifts the load 38 and the timing at which the load 38 lands on the floor, based on the detection results of the load meter constituting the timing detection unit 21 provided on the crane 20. The calculation unit 12 performs calculations to convert the position of the load 38 at the lifting timing into a coordinate position in the global coordinate system (see FIG. 2). The calculation unit 12 also performs calculations to convert the position of the load 38 at the landing timing into a coordinate position in the global coordinate system. In this way, the calculation unit 12 determines the position of the hoist 37 based on the detection results of the position detection unit 22 as the position of the load 38. The calculation unit 12 can also reflect the position of the load 38 thus determined in the global coordinate system.

[0042] All of the calculation processing for grasping each timing based on the detection results of the load meter of the crane 20 may be performed by the calculation unit 12, but the timing detection unit 21 of the crane 20 may have a calculation unit and perform part or all of the calculation processing. The calculation unit 12 may link the acquisition location of the photographing information acquired by the photographing unit 23 of each crane 20 to the global coordinate system. This makes it possible to grasp which location in the global coordinate system the image or video of the photographing information shows.

[0043] The output control unit 13 controls the output mode of the cargo handling operation information collected from each crane 20. The output control unit 13 edits the collected cargo handling operation information so that it can be output in an integrated state. The output control unit 13 embeds the cargo handling operation information of each crane 20 in a control chart that shows the entire work site in a global coordinate system as shown in FIG. 2. The output control unit 13 displays the grasped position of the suspended load 38 on the control chart that is also shown in a global coordinate system, and attaches a link to access the photographing information at that position. At this time, the output control unit 13 reflects the position of the suspended load 38 calculated by the calculation unit 12 in the control chart that is also shown in a global coordinate system, linking it to the timing when the crane 20 lifted the suspended load 38 and the timing when the load landed on the floor.

[0044] For example, as shown in FIG. 4, the output control unit 13 makes it possible to display the state of the work site as an image 50 on the monitor of the output unit 15. For example, it is assumed that the calculation unit 12 has grasped information that "the crane 20C lifted the load 38A at time X1 and landed it on the floor at time X2" and that "the load 38A of the crane 20C is at coordinate A1 at time X1 and at coordinate A2 at time X2." In this case, the output control unit 13 reflects in the image 50 the state in which the load 38A is lifted with the coordinate A1 as the lifting position and landed with the coordinate A2 as the landing position. It is also assumed that the calculation unit 12 has grasped information that "the crane 20C lifted the load 38B at time Y1 and landed it on the floor at time Y2" and that "the load 38B of the crane 20C is at coordinate B1 at time Y1, moves with the travel of the crane 20C, and is at coordinate B2 at time Y2." In this case, the output control unit 13 reflects in the image 50 a state in which the load 38B is lifted from the lifting position at the coordinate B1 and landed on the floor at the landing position at the coordinate B2.

[0045] In the example of Fig. 4, the coordinates of lifting and landing are indicated by dots, and the direction of movement of the suspended load 38 is indicated by an arrow. The output control unit 13 may be configured to display the grasped loading and unloading record information as a table 51. Note that, although only the information of the crane 20C is shown in Fig. 4, the image 50 may show all the control charts expressed in the global coordinate system, and all the cranes 20A, 20B, 20C, and 20D may be shown. Furthermore, the loading and unloading records of all the cranes 20A, 20B, 20C, and 20D may be shown in table 51.

[0046] The output control unit 13 may edit the photographing information acquired by the photographing unit 23 into a predetermined output format and output it from the output unit 15. For example, the output control unit 13 may create a composite image showing the overall state of the work site as shown in FIG. 2 using the images acquired by the photographing unit 23 of each crane 20. The output control unit 13 may reflect the movement information of the suspended load 38 as shown in the image 50 of FIG. 4 in the composite image. When compositing the images, the output control unit 13 may trim the overlapping parts. However, the output control unit 13 may not use a photograph as an image showing the state of the work site, and may use a simplified illustration. For example, when a user specifies a specific time and place at the work site, the output control unit 13 may control the output so that an image or video corresponding to the time and place can be output. For example, the output control unit 13 may store the photographing information of the photographing unit 23 like a drive recorder so that it can be referenced later.

[0047] The information transmitting / receiving unit 14 transmits the managed loading / unloading operation information to the output unit 15. The information transmitting / receiving unit 14 also receives information from the crane 20. The information transmitting / receiving unit 14 transmits and receives information by wireless communication. The information transmitting / receiving unit 14 may transmit the information output from the output control unit 13 to the output unit 15 in real time, or may output the information to the output unit 15 collectively when a certain amount of information has been accumulated (for example, at the end of work for the day).

[0048] The output unit 15 outputs the integrated cargo handling operation information output from the management device 10 to the user. The output unit 15 is, for example, configured with an information terminal such as a personal computer owned by the user. Therefore, the output unit 15 is usually installed in a place away from the crane 20, such as an office. The output unit 15 displays the cargo handling operation information edited by the output control unit 13 on a monitor. The output unit 15 may also output the cargo handling operation information on paper using a printer or the like. The management device 10 can transmit information to multiple output units 15. The output unit 15 may further include a portable information terminal such as a smart phone or a tablet terminal.

[0049] Next, the flow of processing contents of the work management system 100 for the crane 20 according to this embodiment will be described with reference to Fig. 5. Fig. 5 is a flowchart showing the processing contents of the work management system 100 for the crane 20 according to the embodiment of the present invention. The processing shown in Fig. 5 is repeatedly executed by the management device 10. Note that the processing shown in Fig. 5 may be executed at regular time intervals, or may be executed at the timing when information is acquired by any of the cranes 20.

[0050] As shown in FIG. 5, the information acquisition unit 11 acquires information enabling detection of the lifting timing and the landing timing from the timing detection unit 21 of the crane 20 (step S10). The information acquisition unit 11 acquires information enabling detection of the position of the load 38 from the position detection unit 22 of the crane 20 (step S20). The information acquisition unit 11 acquires photographing information from the photographing unit 23 of the crane 20 (step S30). Next, the calculation unit 12 converts the various information acquired in steps S10, S20, and S30 into a global coordinate system and embeds it in a control chart represented in the global coordinate system (step S40). In addition, the output control unit 13 edits the output information so that the information embedded in the control chart represented in the global coordinate system in step S40 can be output to the output unit 15 (step S50). Then, the information transmission / reception unit 14 outputs the output information edited in step S50 to the output unit 15 (step S60).

[0051] Next, the operation and effects of the work management system 100 for the crane 20 and the management device 10 according to this embodiment will be described.

[0052] The work management system 100 for the crane 20 includes a timing detection unit 21 and a position detection unit 22 as an information acquisition unit that acquires loading operation information related to the loading operation of each of the multiple cranes 20, and a management device 10 that collects and integrates the loading operation information of each of the multiple cranes 20 acquired by the timing detection unit 21 and the position detection unit 22 as the information acquisition unit. As a result, the management device 10 can collect loading operation information related to the loading operation from each of the multiple cranes 20 arranged at the work site and integrate the collected loading operation information of each crane 20. In addition, the management device 10 can output the loading operation information in an integrated state. As a result, the user can refer to the loading operation information of the multiple cranes 20 arranged at the work site in an integrated state. As described above, the multiple cranes 20 arranged at the work site can be well managed.

[0053] The management device 10 can embed the cargo handling operation information of each crane 20 in a control chart represented in a global coordinate system set for the work site. In this case, the management device 10 can output what cargo handling operation each crane 20 performed in the global coordinate system. This allows the user to easily refer to what cargo handling operation each crane 20 performed within the entire work site.

[0054] The management device 10 determines the position of the hoisting tool 37 as the position of the load 38 from the travel, rotation, and retraction movements of the crane 20. The travel, rotation, and retraction movements of the crane 20 are information that can be acquired by equipment already installed on the crane 20. The position of the hoisting tool 37 can be identified based on these movements. And the position of the load 38 can be identified from the position of the hoisting tool 37. Therefore, the management device 10 can determine the position of the load 38 using the equipment already installed on the crane 20.

[0055] The management device 10 determines the timing when the crane 20 lifts the load 38 and the timing when the load 38 hits the floor based on the detection result of the load meter provided on the crane 20. The load meter is a device that is already installed on the crane 20. Therefore, the management device 10 can determine the timing when the load 38 is lifted and the timing when the load hits the floor using the device that is already installed on the crane 20.

[0056] The crane 20 has a photographing unit 23. This allows the management device 10 to acquire photographic information of the surroundings of each crane 20 and link it to the management chart. This allows the user to effectively use the photographic information of each surrounding.

[0057] The management device 10 is a management device 10 that manages the work of multiple cranes 20 arranged at a work site, collects and integrates loading and unloading operation information regarding the loading and unloading operations of each of the multiple cranes 20, and outputs the integrated loading and unloading operation information.

[0058] According to the management device 10 of this embodiment, it is possible to obtain the same functions and effects as those of the work management system 100 for the crane 20 described above.

[0059] In the above embodiment, the loads 38 involved in the loading and unloading of the multiple cranes 20 shown in FIG. 3 are managed as points. However, the actual loads 38 have a certain size and occupy a certain spatial range, and the center of gravity and weight of the loads 38 also affect the operation of the cranes. The information on the loads 38 is easily obtainable because it has already been generated during product design. For example, when the crane 20 transports ship parts, the ship parts are manufactured according to the product design and drawings that have been created. Therefore, the information on the loads 38 can be easily obtained from the information on the drawings.

[0060] Therefore, the cargo handling operation information collected and integrated by the management device 10 may include information about the suspended load 38 related to the cargo handling by the crane 20. In this case, the management device 10 can manage the operation of the crane 20 by linking information about the suspended load 38, such as the shape, size, center of gravity position, and weight of the suspended load 38, for example.

[0061] The timing at which the management device 10 acquires the information on the suspended load 38 is not particularly limited. For example, the management device 10 may acquire the information before the crane 20 actually loads the suspended load 38, may acquire the information immediately before or during the loading and unloading, or may acquire the information when the loading and unloading is completed and data is being organized. The management device 10 may effectively utilize the acquired information on the suspended load 38 in any way. For example, the management device 10 outputs the operation status of each crane 20 as described above, but may manage and output the operation status and the information on the suspended load 38 in association with each other. For example, the image 50 in FIG. 4 shows only the coordinates of the suspension positions of the suspended loads 38A and 38B, but the outlines of the suspended loads 38A and 38B may also be shown in the image 50.

[0062] 6, in the crane management system, the management device 10 may further include a work planning unit 60 that plans work for a plurality of cranes 20 based on the cargo handling operation information integrated by the management device 10. The work planning unit 60 may plan work using the load 38 related to the cargo handling by the crane 20 and spatial information of the crane 20. This allows the user to use the cargo handling operation information integrated by the management device 10 to plan work. The spatial information of the load 38 and the crane 20 is information that indicates the state in which the load 38 and the crane 20 exist in space, such as the outer shape, position, and orientation of the load 38 and the crane 20.

[0063] Furthermore, the work planning unit 60 may display information for planning the work on the output unit 15. This allows the user to easily plan the work while visually checking the information. For example, as shown in FIG. 6, the management device 10 may plan how to arrange the load 38 while taking into consideration the positions of large structures 70 and the like present around the crane 20, and may display the plan contents as an image on the output unit 15. In the image, the crane 20 and the load 38 may be displayed as photographs or as modeled figures.

[0064] The work planning unit 60 can appropriately plan the work using the information of the load 38 described above. For example, as shown in FIG. 6, the work planning unit 60 recognizes and defines the rail start point S and end point E of the crane 20 on a map based on GPS position information mounted on the crane 20. Next, the work planning unit 60 defines the design dimensions of the building, fixed objects, etc. based on the rail start point S, and defines the yard operation space based on the track in coordinates. The position of the load 38 (center of the hoisting tool) is assigned by the dimension from the rail start point S based on the travel, rotation, and retraction position information of the crane 20. The work planning unit 60 can display the position, type, time, and location of the load 38 to be transported by linking the information of the load 38 (item name, shape, size, center of gravity, weight, etc.) to the position of the load 38. Since the center of gravity of the load 38 is calculated in advance at the time of design as transportation information for lifting, the shape of the load 38 may be stored and positioned with the center of gravity as the hook center. The shape may also be stored by tracing the outline from an image. The shape may also be recognized by an image recognition camera. These processes may be performed not only when the work planner 60 creates a work plan, but also when creating an image showing the actual operation of the crane 20.

[0065] The work planning unit 60 can plot the working area of ​​the crane 20 (the trajectory CL1 in the figure indicates the maximum radius of the jib, and the trajectory CL2 indicates the minimum radius of the jib) on rail coordinates and display the surrounding large structure 70. The work planning unit 60 also displays other suspended loads 38. For example, when the crane 20 plans the destination of the suspended load 38D, the user can consider what rotation angle θ should be used for rotation and what jib radius should be used for transporting the load 38D so as not to interfere with the surrounding large structure 70 or other suspended loads 38.

[0066] The work planning unit 60 may display information required for the plan to the user and perform the work plan based on the user's input. Alternatively, the work planning unit 60 may automatically create an optimal work plan, taking into consideration the positional relationships with the surrounding large structures 70 and other suspended loads 38. Alternatively, the work planning unit 60 may present candidates for the automatically created work plan to the user and create the plan based on the user's selection or input of fine adjustments.

[0067] The work planning unit 60 may be able to modify the created plan. For example, if the planned work differs from the actual work, the plan can be modified. Specifically, it is assumed that the work planning unit 60 creates a work plan for one day on the day before a certain work day. At this time, it is assumed that the work in the morning is different from the work plan. For example, if a specified suspended load 38 is placed in a position different from that in the plan, the actual work will differ from the work plan. In such a case, the work planning unit 60 compares the actual work content with the initially created work plan and modifies the afternoon work plan.

[0068] The management device 10 may be capable of outputting the cargo handling operation information in real time. In this case, the user can quickly grasp the state of the crane 20. For example, the management device 10 outputs the output contents shown in FIG. 4 to the output unit 15 in real time while changing them from moment to moment. For example, if the work supervisor has a mobile terminal as the output unit 15 at each site in the factory, the management device 10 outputs the current state of each crane 20 in the factory to each work supervisor's mobile terminal in real time. This allows the work supervisor at each site to immediately know the situation at other sites. At this time, a user with a predetermined authority, such as a work supervisor, may check the image displayed on the output unit 15 and modify the work plan created by the work planning unit 60. The time interval at which the management device 10 updates the information on each output unit 15 is not particularly limited, but may be updated every few seconds or every few minutes, for example. When the latest information is output at such a time interval, it corresponds to being output in real time.

[0069] The management device 10 may adjust the display mode according to the state of each crane 20 and display the state of each crane 20 on the output unit 15. In this case, the user can quickly visually grasp the state of the crane 20 by checking the output unit 15.

[0070] For example, the management device 10 may output to the output unit 15 an image displaying the cargo handling operation information of a plurality of cranes 20 as shown in FIG. 7. FIG. 7 shows the arrangement of cranes arranged in a yard, and the state is updated at intervals of several seconds. For example, in the case of a rotating crane, the turning radius and direction change as the jib is retracted (see FIG. 3). As shown in FIG. 7, on the layout image, the radius of the crane 20 is indicated by the size of the circle. Also, the direction of the jib of the crane 20 is indicated by the direction of the arrow. Note that, in a portion where the turning radius is overlapped and difficult to see, the circle may be made semi-transparent to make it easier to see the traveling positions of the cranes 20 that are close to each other. In this way, the relationship with the adjacent machines that are blind spots in the working radius can be visualized. This circle wrapping makes it possible to check the possibility of a collision depending on the turning direction. Note that the colors and patterns of the circles (distinguished by dots or hatching patterns in the figure) are classified into "operating", "stopped", "abnormality occurring", and "no data: not monitored". This makes it possible to visualize which crane 20 is in what state, in what direction, at what position, and what working radius it has. Also, by coloring the arrows (triangles in circles), it is possible to determine whether a load is being lifted. For example, a hatched arrow indicates that a load is being lifted, and a white arrow indicates that no load is being lifted.

[0071] The management device 10 may also output to the output unit 15 an image displaying more detailed cargo handling operation information for a specific crane as shown in FIG. 8. The specific crane may be a single crane or multiple cranes traveling on the same rail 36. FIG. 8 is also described using a slewing crane as an example. In FIG. 8, the traveling position of the crane 20 is displayed. That is, the image shows the total length of a pair of parallel rails 36. Also, with one end of the rail 36 as the origin side, an arrow AP is shown to indicate the crane position, and the text "travel distance XX m" is displayed. Also, in the image, 360° is expressed by the text "slewing angle +XX degrees (-XX°)" from a reference point, while moving the direction of a triangle indicating the jib.

[0072] Here, the traveling gear and the swivel gear of the crane 20 each require a brake mechanism to prevent the crane from running away due to wind. For example, the brake mechanism of the swivel gear is a hydraulic brake (combination unit). The brake mechanism of the traveling gear is a mechanical fixing device that engages with the ground-side receiving hardware. Each brake mechanism is equipped with a limit switch for checking ON / OFF. The state of each brake mechanism is indicated by an anchor mark in the image of FIG. 8. In the image, hatched parts indicate that the fixing device is in the ON state. The anchor mark 41 on the upper side of the rail 36 indicates the operating state of the swivel brake mechanism. The anchor mark 42 on the lower side of the rail 36 indicates the operating state of the traveling brake mechanism. In the case of the traveling brake mechanism, the ground-side receiving hardware may be installed at one or more places along the entire length of the rail, and the anchor marks correspond to the positions of each upper-side receiving hardware. In the state of FIG. 8, the crane on the left side of the figure is stopped, and the brake mechanisms of the swivel gear and the traveling gear are in the ON state. The crane in the center of the figure is in operation, and the brake mechanisms for the slewing gear and traveling gear are in the OFF state. The crane on the right side of the figure is not under management, and its operating status is not collected.

[0073] Furthermore, the management device 10 may output an image as shown in Fig. 9 to the output unit 15. Here, the hoisting and retracting status will be described as an example. Specifically, in the image, the text "Lifting height + XXX m (- XXX °)" is displayed while the hook position is moved relative to the ground. In addition, in the image, the text "Retraction radius XXX m" is displayed while the hook position is moved relative to the center of the crane. In addition, in the image, the load detected by the load meter is displayed as the text "Load XXX t."

[0074] As described above, the management device 10 expresses the status of the crane 20 in an image using the "color," "shape," "size," "direction" of symbols and the "transparency effect," making it possible to visually monitor the status. The management device 10 can use cloud communication to enable multiple people to simultaneously grasp the operation information in real time. By using such information, it becomes possible to monitor the crane status of the entire factory, and it becomes possible to quickly respond to unexpected situations. In addition, there is an advantage in that it is possible to remotely check whether the travel / swing safety device (runaway prevention) has been put on.

[0075] By visualizing the status of the crane 20 in real time on the output unit 15, it becomes possible to instantly grasp the status of the cranes throughout the factory. Also, by using letters and numbers as a supplement, it becomes possible to visually grasp the status of the cranes based on their shape, color, size, direction, etc. It is also possible to check remotely for any forgotten safety devices.

[0076] The cranes that are the subject of management of the present invention are not limited to jib cranes. The present invention is applicable to at least all rotating cranes. Some of the functions can be applied to bridge cranes, etc. For example, the present invention may be used to manage other types of cranes, such as overhead cranes.

[0077] For example, referring to Figs. 10 and 11, how the photographing unit 23 photographs the periphery of the crane 20 when a bridge crane is adopted as the crane 20 will be described. Fig. 10 is a plan view showing the photographing range of the photographing unit 23 provided on the crane 20 at the work site. Fig. 11 is a schematic diagram showing the manner in which the photographing unit 23 provided on the crane 20 photographs the periphery of the crane 20. Fig. 11(a) is a plan view, Fig. 11(b) is a front view, and Fig. 11(c) is a side view. As shown in Fig. 11(b), the bridge crane 20 includes a girder 91 extending in the horizontal direction and a pair of legs 92, 92 extending in the vertical direction at both ends of the girder 91. A running part running along rails 93, 93 (see Fig. 10) is provided at the lower end of the legs 92, 92. This allows the crane 20 to move in the running direction along the rails 93, 93. The crane 20 also includes a trolley unit 94 that moves laterally along the girder 91. The trolley unit 94 moves laterally while suspending a hoisting tool.

[0078] As shown in Fig. 11(b)(c), the trolley part 94 is provided with the photographing unit 23A capable of photographing the area below the girder 91. As a result, the photographing unit 23A can photograph from any position in the lateral direction by moving the trolley part 94. For example, in Fig. 10, in the lateral direction of the crane 20, the photographing range DE1 of the photographing unit 23A at the photographing position P1 shown by the solid line and the photographing range DE2 of the photographing unit 23A at the photographing position P2 shown by the dashed line are shown. In addition, in the travel direction, in addition to the photographing position P1 shown by the solid line, photographing is performed at two positions (positions shown by the dashed lines). As a result, the photographing unit 23A moves in the travel direction and the lateral direction to photograph at a total of six photographing positions. Based on these photographing information and the position information of the crane 20, a planar photograph showing the overall state of the work site WE can be synthesized. Such planar photographs can be effectively used when a manager creates a work plan by acquiring them at the end of a day's work (or the beginning of a day's work), or can be used as a daily video report. It is also possible to manage the data in chronological order.

[0079] As shown in FIG. 11(b), the photographing units 23B, 23B are provided on the legs 92, 92, respectively, and can take images from the horizontal direction. The photographing units 23B, 23B are arranged so as to take images of the inside of the crane 20. That is, the photographing unit 23B is arranged so as to face the opposite leg 92 in parallel with the lateral direction (see also FIG. 11(a)). The height position of the photographing units 23B, 23B is not particularly limited, but may be set to a middle position (such as near the center) in the height direction of the legs 92, 92 so that the state of the lower side of the girder 91 can be photographed over a wide range. For example, the photographing units 23B, 23B take images at three positions in the travel direction in FIG. 10, and the obtained photographing information is combined with a planar photograph, so that the state of the work site WE can be grasped three-dimensionally.

[0080] In this way, the crane 20 has legs 92, 92 extending in the vertical direction, and the photographing units 23B, 23B are provided on the legs 92, 92 and can capture images from the horizontal direction. This allows the management device 10 to acquire photographic information of the periphery of each crane 20 captured from the horizontal direction. For example, if only the photographing unit 23A that captures the state of the lower side of the crane 20 from above is provided, the state of the periphery of the crane 20 can only be grasped two-dimensionally. In contrast, when photographic information captured from the horizontal direction is acquired, the state of the periphery of the crane 20 can be grasped three-dimensionally. Note that a 3D camera capable of acquiring distance information may be used as the photographing unit 23A or the photographing unit 23B. By using a 3D camera, the state of the periphery of the crane 20 can be grasped three-dimensionally from the photographic information from one direction.

[0081] FIG. 12 is a block diagram showing a crane work management system 100 according to a modified example. In the work management system 100 shown in FIG. 12, information can be input from an information terminal 80 at each location based on the shared information. As shown in FIG. 12, the work management system 100 includes a management device 10 and an information terminal 80. The information terminal 80 is a terminal capable of outputting and inputting information. The information terminal 80 can function as the output unit 15 in the above-described embodiment and modified example. Therefore, the information terminal 80 is configured by a personal computer, a smartphone, a tablet terminal, or the like, as exemplified by the output unit 15. In the example shown in FIG. 12, each information terminal 80 can present information to and receive information from the site work manager, the operator of the crane 20, the office operation manager, and the like.

[0082] After the office operation manager checks the image showing the state of the work site WE as shown in FIG. 10, he / she inputs operation information using the information terminal 80 and creates a work plan in the work planning section 60. For example, the information terminal 80 used by the office operation manager can input information such as "operation time," "ship number," "block name," "from where to where (the cargo) is to be transported," "transportation equipment," "weight of the cargo," "time to perform the work," and "work name" for each work day. The work planning section 60 causes the information terminal 80 to display work information showing the work content according to the time on the crane 20. The management device 10 can share the work plan in real time among the office operator, the on-site work manager, the driver, etc., by displaying a screen as shown in FIG. 13 on each information terminal 80, for example.

[0083] The information terminal 80 can input information regarding the work content of the crane 20 and the start and end of the work content. That is, the operator or the site work manager can input "which work", "the work start timing (the point when the load is lifted and the load calculation value becomes stable)", and "the completion timing (the point when the load is lowered and the work is completed)" into the information terminal 80 based on the actual work performance. In addition, the management device 10 may feed back the information inputted in each information terminal 80 to an image displayed on the information terminal 80. This allows the information terminal 80 to visually display the progress of the work information in real time. In addition, when the office operator modifies the work plan in accordance with the progress, the modified work plan can be displayed on each information terminal 80, allowing information sharing in real time.

[0084] As shown in FIG. 13, the information terminal 80 allows visual confirmation of which equipment (crane) is performing what work at what time at each time. For example, a task bar corresponding to a timetable is displayed for each crane. For example, the time at which the work content of "task 1" is performed for the crane at the top is shown. The information terminal 80 can display the current time and also display which work is currently being performed by each crane 20. For example, in FIG. 13, a hatched bar indicates the current time. Also, a task bar touching the bar indicates the work content currently being performed. The information terminal 80 may visually identify the task bar corresponding to the work content currently being performed by devising a display mode such as color coding. For example, in FIG. 13, the task bars corresponding to the work content currently being performed (task 3, task 5-1, task 5-2) are grayscaled. Task bars (task 1, task 2) shown to the left of the current time bar indicate that the work has already been completed. As the completed task bar, both the task bar at the time of planning and the task bar showing the actual result based on the input of the driver may be displayed. Also, the task bar (task 2-2, task 6) shown to the right of the current time bar means that the work has not been started yet. For the unstarted task bar, if there is a correction according to the actual progress, the corrected task bar is displayed. Alternatively, if there is a correction, both the task bar before and the corrected task bar may be displayed. The completed task bar and the unstarted task bar may be visually identified by color coding or the like. This makes it possible to visually confirm the work plan and the execution status of the work plan for each crane 20. Also, in FIG. 13, by displaying "transport weight / power usage" above the column displaying the task bar where the progress can be confirmed, it is possible to evaluate the progress of the work together.

[0085] The work management system 100 further includes an information terminal 80 that outputs cargo handling operation information, and information regarding at least the work content of the crane and the start and end of the work content can be input to the information terminal 80. In this case, since it is possible to input information based on the work actually performed at the work site of each crane 20, it is possible to share information on actual work results at other locations.

[0086] The work management system 100 further includes a work planning unit 60 that plans work for multiple cranes 20 based on the cargo handling operation information integrated by the management device 10, and the work planning unit 60 displays work information indicating the work content according to the time of day for the cranes 20 on an information terminal 80 (output unit), and the information terminal 80 visually displays the progress of the work information in real time. In this case, it becomes possible to check the actual progress of the work content planned by the work planning unit 60 at each work site in real time.

[0087] Furthermore, the work management system 100 allows office operators to appropriately manage operations remotely while checking actual results through video for planning work, improving work efficiency. Furthermore, by visualizing operation forecasts and actual results in real time, it becomes possible to efficiently adjust (change) processes while checking progress. It also makes it easy to aggregate actual results and import them into other systems, output daily operation reports, and so on. Furthermore, by periodically recording video, it is possible to check progress in chronological order (achievement management through daily video reports). Furthermore, actual results can be used as information for the next plan. [Explanation of symbols]

[0088] 10...management device (management section), 15...output section, 20...crane, 21...timing detection section (information acquisition section), 22...position detection section (information acquisition section), 23, 23A, 23B...photography section, 37...hoisting device, 38...suspended load, 60...work planning section, 80...information terminal (output section), 100...work management system.

Claims

1. A crane work management system that manages work of a plurality of cranes arranged at a work site, An information acquisition unit that acquires loading operation information regarding the loading operation of each of the plurality of cranes; a management unit that collects and integrates the cargo handling operation information of each of the plurality of cranes acquired by the information acquisition unit, The management unit outputs the cargo handling operation information in an integrated state.

2. 2. The crane work management system according to claim 1, wherein the management unit is capable of embedding the cargo handling operation information of each of the cranes in a control chart represented by a global coordinate system set for the work site.

3. The crane work management system according to claim 1 or 2, wherein the management unit grasps the position of the hoisting tool as the position of the hoisting tool from the traveling, slewing, and retracting operations of the crane.

4. The crane work management system according to any one of claims 1 to 3, wherein the management unit grasps the timing when the crane lifts the load and the timing when the load lands based on the detection results of a load meter provided on the crane.

5. The crane work management system according to any one of claims 1 to 4, wherein the crane has a photographing unit.

6. The crane has legs extending in a vertical direction, The work management system according to claim 5 , wherein the image capturing unit is provided on the leg and is capable of capturing images from a horizontal direction.

7. The crane work management system according to any one of claims 1 to 6, wherein the cargo handling operation information collected and integrated by the management unit includes information regarding the suspended load related to the cargo handling by the crane.

8. Further, a work planning unit that plans work for the plurality of cranes based on the cargo handling operation information integrated by the management unit, 8. The crane work management system according to claim 1, wherein the work planning unit plans the work using a load related to loading and unloading by the crane and spatial information of the crane.

9. The crane work management system according to claim 8 , wherein the work planning unit displays information for planning the work on an output unit.

10. The crane work management system according to claim 8 or 9, wherein the work planning unit is capable of modifying the created plan.

11. The crane work management system according to any one of claims 1 to 10, wherein the management unit is capable of outputting the cargo handling operation information in real time.

12. The crane work management system according to any one of claims 1 to 11, wherein the management unit adjusts a display mode according to a state of each of the cranes and displays the state of each of the cranes on an output unit.

13. Further comprising an information terminal for outputting the cargo handling operation information, The crane work management system according to any one of claims 1 to 12, wherein the information terminal is capable of inputting information regarding at least the work content to be performed by the crane and the start and end of the work content.

14. Further, a work planning unit that plans work for the plurality of cranes based on the cargo handling operation information integrated by the management unit, The work planning unit causes an output unit to display work information indicating work content according to time of the crane, The crane work management system according to any one of claims 1 to 13, wherein the output unit visually displays a progress status of the work information in real time.

15. A management device that manages work of a plurality of cranes arranged at a work site, collecting and integrating loading operation information relating to loading operations of each of the plurality of cranes; A management device that outputs the cargo handling operation information in an integrated state.

Images