JP7417838B2 - Projection system and projection method - Google Patents

Description

The present invention relates to a projection system and a projection method.

2. Description of the Related Art Projection devices that can project images onto a screen or the like are conventionally known. As a technology related to a projection device, Patent Document 1 discloses a method of displaying an object of a design proposal on a boundary wall surface of a room.

Special Publication No. 2016-522905

However, with the above-mentioned conventional technology, it is not possible to have the worker perform the work efficiently when there are many work areas.

SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide a projection system and a projection method that allow workers to work efficiently, shorten the construction period, and reduce the burden on the workers.

In order to achieve the above object, a projection system according to one aspect of the present invention includes a projection device that is installed at a work site and projects a drawing onto each of a plurality of work locations at the work site, and the projection device further includes: , projecting a guide graphic for guiding a worker to at least one of the plurality of work locations, or to a planned installation location where the projection device will be installed next;

Further, the projection method according to one aspect of the present invention includes a step in which a projection device installed at a work site projects a drawing onto each of a plurality of work locations at the work site, and a step in which a worker is directed to each of the plurality of work locations. The method further includes the step of projecting a guide figure for guiding the projection device to at least one target location or to a planned installation location where the projection device will be installed next.

Further, one embodiment of the present invention can be realized as a program that causes a computer to execute the above projection method. Alternatively, the program can be realized as a computer-readable non-transitory recording medium storing the program.

According to the present invention, it is possible to have a worker perform the work efficiently, and it is possible to shorten the construction period and reduce the burden on the worker.

FIG. 1 is a perspective view showing a work site where the projection system according to the first embodiment is used. FIG. 2 is an external view of a device constituting the projection system according to the first embodiment. FIG. 3 is a block diagram showing the functional configuration of the projection system according to the first embodiment. FIG. 4A is a perspective view showing a work site on which an example of a guide figure is projected by the projection system according to the first embodiment. FIG. 4B is a perspective view showing a work site on which another example of a guide figure is projected by the projection system according to the first embodiment. FIG. 5 is a flowchart showing the operation of the projection system according to the first embodiment. FIG. 6 is a flowchart showing the operation of the projection system according to the first modification of the first embodiment. FIG. 7A is a perspective view showing a work site on which an example of a guide figure is projected by the projection system according to Modification 1 of Embodiment 1. FIG. 7B is a perspective view showing a work site on which another example of a guide figure is projected by the projection system according to Modification 1 of Embodiment 1. FIG. 8 is a perspective view showing an example of a guide figure projected by the projection system according to the second modification of the first embodiment. FIG. 9 is a perspective view showing an example of a guide figure projected by the projection system according to the third modification of the first embodiment. FIG. 10 is a flowchart showing the operation of the projection system according to the second embodiment. FIG. 11A is a perspective view showing a work site on which an example of a guide figure is projected by the projection system according to the second embodiment. FIG. 11B is a perspective view showing a work site on which another example of a guide figure is projected by the projection system according to the second embodiment. FIG. 11C is a perspective view showing a work site on which another example of a guide figure is projected by the projection system according to the second embodiment. FIG. 11D is a perspective view showing a work site on which another example of a guide figure is projected by the projection system according to the second embodiment. FIG. 11E is a perspective view showing a work site on which another example of a guide figure is projected by the projection system according to the second embodiment. FIG. 11F is a perspective view showing a work site on which another example of a guide figure is projected by the projection system according to the second embodiment. FIG. 12 is a flowchart showing the operation of the projection system according to the third embodiment. FIG. 13 is a perspective view showing a work site on which guide figures are projected by the projection system according to the third embodiment.

Below, a projection system and a projection method according to an embodiment of the present invention will be described in detail using the drawings. Note that all of the embodiments described below are specific examples of the present invention. Therefore, the numerical values, shapes, materials, components, arrangement and connection forms of the components, steps, order of steps, etc. shown in the following embodiments are merely examples, and are not intended to limit the present invention. Therefore, among the constituent elements in the following embodiments, constituent elements that are not described in the independent claims will be described as arbitrary constituent elements.

Furthermore, each figure is a schematic diagram and is not necessarily strictly illustrated. Therefore, for example, the scales and the like in each figure do not necessarily match. Further, in each figure, substantially the same configurations are denoted by the same reference numerals, and overlapping explanations will be omitted or simplified.

(Embodiment 1)
[overview]
First, an overview of the projection system according to Embodiment 1 will be explained using FIGS. 1 and 2. FIG. 1 is a perspective view showing a work site 100 where a projection system according to the present embodiment is used. FIG. 2 is an external view of a device that constitutes the projection system 10 according to this embodiment.

As shown in FIG. 2, the projection system 10 includes a projection device 20. As shown in FIG. 1, the projection device 20 is installed at a work site 100 in a building under construction. The work site 100 includes a plurality of work locations 101 and 102.

The projection device 20 projects the drawing 111 onto the work sites 101 and 102 included in the work site 100. Specifically, the projection device 20 projects the drawing 111 onto the structures that make up the work site 100. The structure is, for example, a floor, wall, column, or ceiling.

The drawing 111 is, for example, a drawing projected onto the work location 101 at the work site 100. Note that in FIG. 1, the work location 101 is shown by a broken line, but the work location 101 is not shown in the actual work site 100. Therefore, if the drawing 111 is not projected, the worker 120 cannot recognize the exact position of the work location 101. By projecting the drawing 111, the worker 120 can recognize the work location 101. The worker 120 can perform the work easily and accurately by working according to the drawing 111.

The work is, for example, marking work. For example, the projected drawing 111 is a line of light or a figure projected at a position where the operator 120 is to draw a marking line with a designed length. The operator 120 can easily draw a marking line by simply tracing the light lines or figures shown in the drawing 111. Note that it is not essential that the light line or figure be used as a guide for drawing the marking line. A line of light or a figure itself may be used as the marking line. Further, the work does not have to be marking work, but may be drilling work, and is not particularly limited.

The work site 100 often has few targets and is spacious. Therefore, for example, if the drawing 111 is a small figure, it takes time for the operator 120 to find the drawing 111 even if the drawing 111 is projected. Therefore, the work efficiency of the worker 120 decreases.

In contrast, the projection system 10 according to the present embodiment projects a guide figure (for example, the guide figure 130 shown in FIG. 4A) for guiding the worker 120 to the work location 101. Thereby, the worker 120 can be guided to the work location 101, and the time required to find the drawing 111 can be shortened. Therefore, the worker 120 can be made to work efficiently, and the construction period can be shortened and the burden on the worker can be reduced.

[composition]
Next, a specific functional configuration of the projection system 10 according to the present embodiment will be described using FIGS. 2 and 3. FIG. 3 is a block diagram showing the functional configuration of the projection system 10 according to this embodiment.

As shown in FIGS. 2 and 3, the projection system 10 includes a projection device 20, a data processing device 30, and a terminal device 40. Below, the specific configuration of each device that makes up the projection system 10 will be explained in order.

[Projection device]
For example, as shown in FIGS. 1 and 2, the projection device 20 is attached to a tripod and installed at a predetermined location on the floor of the work site 100. Alternatively, the projection device 20 may be installed on the wall or ceiling of the work site 100. As shown in FIG. 3, the projection device 20 includes a communication section 21, a distance measurement section 22, a projection section 23, a control section 24, a storage section 25, and a drive section 26.

The communication unit 21 is a communication interface through which the projection device 20 communicates with the data processing device 30 and the terminal device 40. The communication unit 21 performs wireless communication with each of the data processing device 30 and the terminal device 40, but may also perform wired communication. There are no particular limitations on the standard of communication performed by the communication unit 21.

The distance measuring unit 22 measures the distance from the projection device 20 to the structures that make up the work site 100. The distance measuring unit 22 is, for example, a distance image sensor such as a TOF (Time Of Flight) sensor. The distance image sensor generates a distance image as a result of distance measurement. The pixel value of each of the plurality of pixels constituting the distance image indicates the distance from the distance measuring section 22. Note that the distance measuring section 22 may be any other distance measuring sensor, such as a distance measuring sensor using a phase difference detection method or a distance measuring sensor using a triangular distance measuring method. As shown in FIG. 3, the distance measurement section 22 includes a distance measurement light source 22a and a detection section 22b.

The distance measuring light source 22a is a light source that emits light toward a structure. The distance measuring light source 22a is, for example, a light emitting element that emits infrared light. Alternatively, the distance measuring light source 22a may be a light emitting element that emits visible light. Note that the light source 22a for distance measurement does not need to be separate from the light source 23a included in the projection section 23, and the light source 23a included in the projection section 23 may be used as the light source 22a for distance measurement. That is, the distance measuring section 22 does not need to have the distance measuring light source 22a, and may be a sensor having only the detecting section 22b.

The detection unit 22b is a light receiving element that detects light reflected by a structure of light emitted by the ranging light source 22a. The detection unit 22b is, for example, an image sensor configured with a photodiode array.

The projection unit 23 is a projection module for projecting the drawing 111 onto a projection surface. The projection section 23 includes a light source 23a and a scanning section 23b. Although not shown, the projection unit 23 may include optical components such as lenses and mirrors.

The light source 23a is, for example, a semiconductor laser element that emits visible light. Alternatively, the light source 23a may be an LED (Light Emitting Diode). The light source 23a may have a configuration in which the color of emitted light can be changed. For example, the light source 23a may include a plurality of light emitting elements that emit light of different colors. The plurality of light emitting elements include, for example, a blue light emitting element, a green light emitting element, and a red light emitting element.

The scanning unit 23b scans the structure with light emitted from the light source 23a. The scanning unit 23b is, for example, a MEMS (Micro Electro Mechanical Systems) mirror or a galvano scanner.

In the present embodiment, the projection unit 23 projects a target drawing, which is a drawing to be projected onto the target location, onto a target location, which is a work location determined by the data processing device 30, among the plurality of work locations 101 and 102. do. For example, in the example shown in FIG. 1, the projection unit 23 projects a drawing 111 onto the work location 101.

Further, the projection unit 23 projects a guide figure. The guide graphic is a graphic for guiding the worker 120 to a target location that is at least one of a plurality of work locations. The specific shape and function of the guide figure will be explained later using FIGS. 4A and 4B.

Note that there is a limit to the projection range 110 that can be projected by the projection unit 23. In FIG. 1, the projection range 110 is schematically represented by a dashed line. For example, when the projection device 20 is installed on a horizontal surface, the projection range 110 is capable of projecting in a range of approximately 40 degrees in the horizontal direction and approximately 20 degrees in the vertical direction. In order to project a drawing onto a work location located outside the projection range 110, it is necessary to change the attitude of the projection device 20. Alternatively, it is necessary to change the installation location of the projection device 20. In this embodiment, by changing the attitude of the projection device 20 by the drive unit 26, the projection direction and the projectable range by the projection unit 23 are changed.

The control unit 24 is a control device that controls the distance measuring unit 22, the projection unit 23, and the drive unit 26 in order to project the drawing 111 on the projection plane. The control unit 24 is realized by, for example, an LSI (Large Scale Integration) that is an integrated circuit (IC). Note that the integrated circuit is not limited to LSI, and may be realized by a dedicated circuit or a general-purpose processor. For example, the control unit 24 may be realized by a microcomputer. Further, the control unit 24 may use a programmable FPGA (Field Programmable Gate Array) or a reconfigurable processor in which connections and settings of circuit cells inside the LSI can be reconfigured.

The storage unit 25 is a storage device that stores a control program for projecting the drawing 111, which is executed by the control unit 24. The storage unit 25 is, for example, a nonvolatile memory, and is realized by a semiconductor memory or the like.

The drive unit 26 is a drive mechanism for changing the attitude of the projection device 20. The drive unit 26 changes the direction in which projection can be performed by changing the attitude of the projection device 20. For example, the drive unit 26 can change the attitude of the projection device 20 in each of pan (horizontal direction), tilt (vertical direction), and roll (rotational direction). The drive unit 26 is realized by, for example, a stepping motor. Note that the projection device 20 does not need to include the drive section 26.

In this embodiment, projection device 20 projects drawings onto a plurality of work locations included in work site 100 in a predetermined order. This allows the operator 120 to perform the work in the order in which the drawings are projected. The projection order of the drawings is determined by the data processing device 30, for example.

For example, when the projection device 20 determines that the work at the target location on which the drawing is being projected has been completed, it projects the drawing onto the next work location in accordance with the determined order. The end of the work is determined by the control unit 24, for example, based on a signal transmitted from the terminal device 40 operated by the worker 120. Alternatively, the control unit 24 may determine the end of the work based on an image taken by a camera (not shown). The camera photographs the state of work of the worker 120 or the work result at the target location. In addition, when the detection part 22b generates a visible light image, the control part 24 may use the detection result of the detection part 22b instead of the image photographed by the camera.

[Data processing device]
Next, the data processing device 30 will be explained. The data processing device 30 is a device that performs processing related to drawings projected by the projection device 20. The data processing device 30 is, for example, a computer device. The data processing device 30 includes a communication section 31, a data processing section 32, a control section 33, a storage section 34, an input section 35, and a display section 36, as shown in FIG.

The communication unit 31 is a communication interface through which the data processing device 30 communicates with the projection device 20 and the terminal device 40. The communication unit 31 performs wireless communication with each of the projection device 20 and the terminal device 40, but may also perform wired communication. The communication standard for communication performed by the communication unit 31 is not particularly limited.

The data processing unit 32 is, for example, a microcomputer or a processor. Based on the architectural design data, the data processing unit 32 determines a target location, which is at least one work location on which the worker 120 is to perform work, and a target drawing to be projected onto the target location. The target location is, for example, at least one of the work locations included within the projection range 110 of the projection device 20 when the projection device 20 is installed at a predetermined location. For example, the data processing unit 32 sequentially determines all the work locations included in the projection range 110 as target locations one by one. The determined order of the work locations is the order in which the worker 120 is to perform the work, and the order in which the drawings are projected.

Note that the data processing unit 32 may sequentially determine N work locations included in the projection range 110 (N is a natural number of 2 or more) as target locations. In other words, the same order may be determined for N work locations. As a result, drawings corresponding to N work locations are simultaneously projected.

The data processing unit 32 generates, for example, an input screen for allowing the worker 120 or the administrator to input the work order (that is, the projection order of drawings), and causes the display unit 36 to display the input screen. The input screen is a selection screen that includes, for example, an image representing the work site 100 and all the work places included in the work site 100 in two or three dimensions, and allows all the work places to be selected in order. The data processing unit 32 determines the selected order as the work order (that is, the drawing projection order). By projecting the drawings by the projection device 20 in the determined order, it is possible to have the worker 120 perform the work in the determined order. The data processing unit 32 transmits order information indicating the determined projection order and the drawings to be projected onto each work location to the control unit 24 of the projection device 20 via the communication unit 31 and the communication unit 21.

Architectural design data is data indicating multiple work locations. Specifically, the architectural design data is three-dimensional data indicating the size and shape of the work site 100. For example, the architectural design data is three-dimensional CAD (Computer Aided Design) data. The architectural design data also includes two-dimensional data indicating the floor plan of the work site 100 and two-dimensional data indicating a plurality of work locations. In the architectural design data, each of a plurality of work locations is associated with a projected drawing. By determining the work location as the target location, a target drawing to be projected onto the target location is determined by referring to the architectural design data.

The data processing unit 32, for example, associates architectural design data with the actual work site 100. The actual work site 100 is shown, for example, by spatial data obtained by measuring distances to surrounding structures after the projection device 20 is installed at the work site 100. By making the correspondence, the installation position and posture (orientation) of the projection device 20 on the architectural design data are specified. Note that a user such as the worker 120 or a work manager may input the position of the installed projection device 20 on the design data. In other words, distance measurement of the work site 100 may not be performed.

The control unit 33 is a control device that controls the communication unit 31, the data processing unit 32, the storage unit 34, the input unit 35, and the display unit 36 in order to generate an input screen and determine the work order and drawings. . The control unit 33 is realized by, for example, an LSI that is an integrated circuit. Note that the integrated circuit is not limited to LSI, and may be realized by a dedicated circuit or a general-purpose processor. For example, the control unit 33 may be realized by a microcomputer. Further, the control unit 33 may use a programmable FPGA or a reconfigurable processor in which connections and settings of circuit cells inside the LSI can be reconfigured.

The storage unit 34 is a storage device that stores a control program executed by the data processing unit 32 and the control unit 33 for generating an input screen and determining the work order and drawings. The storage unit 34 is, for example, a nonvolatile memory, and is realized by a semiconductor memory or the like. The storage unit 34 further stores architectural design data and drawing data indicating a drawing to be projected.

The input unit 35 is an example of a reception unit that receives input of a work order. The input unit 35 receives input of the work order from the worker 120 or the work manager. The input unit 35 is, for example, an input device such as a keyboard or a mouse, but may also be a touch sensor or a physical button.

The display unit 36 displays an input screen for inputting the work order. The display unit 36 is, for example, a liquid crystal display panel or an organic EL (Electro Luminescence) display panel.

Note that the input of the work order and the display of the input screen may be performed on the terminal device 40. That is, the data processing device 30 does not need to include the input section 35 and the display section 36.

[Terminal device]
Next, the terminal device 40 will be explained. The terminal device 40 also functions as a remote controller for the operator 120 to remotely control the projection device 20. For example, the terminal device 40 is a dedicated remote controller for the projection device 20. Alternatively, the terminal device 40 may be a mobile terminal such as a smartphone or a tablet terminal in which a dedicated application program is installed. As shown in FIG. 3, the terminal device 40 includes a communication section 41, an operation reception section 42, a display section 43, a control section 44, and a storage section 45.

The communication unit 41 is a communication interface through which the terminal device 40 communicates with the projection device 20 and the data processing device 30. The communication unit 41 performs wireless communication with each of the projection device 20 and the data processing device 30, but may also perform wired communication. The communication standard for communication performed by the communication unit 41 is not particularly limited.

The operation reception unit 42 is a user interface device that receives operations from the worker 120. The operation reception unit 42 is realized by, for example, one or more physical buttons, but may also be a touch panel or the like.

The display unit 43 displays an image showing the operating status of the projection device 20 and the like. The display section 43 is, for example, a liquid crystal display panel or an organic EL display panel.

The control unit 44 is a control device that controls the communication unit 41, the operation reception unit 42, the display unit 43, and the storage unit 45. The control unit 44 is realized by an LSI that is an integrated circuit. Note that the integrated circuit is not limited to LSI, and may be realized by a dedicated circuit or a general-purpose processor. For example, the control unit 44 may be realized by a microcomputer. Further, the control unit 44 may use a programmable FPGA or a reconfigurable processor in which connections and settings of circuit cells inside the LSI can be reconfigured.

Specifically, the control unit 44 causes the communication unit 41 to transmit, to the projection device 20, a signal for operating the projection device 20 in accordance with the operation accepted by the operation reception unit 42. For example, when the operation reception unit 42 receives an operation to accept an instruction to end the work from the worker 120, the control unit 44 causes the communication unit 41 to transmit a completion signal indicating the end of the work to the projection device 20.

The storage unit 45 is a storage device in which a control program executed by the control unit 44 is stored. The storage unit 45 is, for example, a nonvolatile memory, and is realized by a semiconductor memory or the like. The storage unit 45 may store identification information unique to the terminal device 40.

[Guide shape]
Next, guide figures projected by the projection system 10 according to this embodiment will be explained using FIGS. 4A and 4B.

FIGS. 4A and 4B are perspective views showing a work site 100 on which guide figures are projected by the projection system 10 according to the present embodiment. Note that FIGS. 4A and 4B show a case where the work location 101 is a target location, that is, the work location where the worker 120 is scheduled to work next. That is, both the guide figure 130 shown in FIG. 4A and the guide figure 131 shown in FIG. 4B are guide figures for guiding the worker 120 to the work location 101.

The guide figure 130 or 131 is, for example, a figure larger than the outline of the drawing 111 projected onto the work location 101. Alternatively, the guide figure 130 or 131 is a figure that is at least partially projected at a position closer to the worker 120 than the work location 101. For example, at least a portion of the guide figure 130 or 131 is projected near the work location immediately before the work location 101. Since there is a high possibility that the worker 120 is present at the work location immediately before the work location 101, the worker 120 can easily find the guide figure 130 or 131.

By projecting the guide figure 130 or 131 in this way, the worker 120 can easily find the guide figure 130 or 131 and be easily guided to the work location 101. That is, the guide figure 130 or 131 can guide the worker 120 to the work location 101. Therefore, the time taken by the worker 120 to search for the next work location 101 can be reduced, and work efficiency can be improved. Note that the guide figure 130 or 131 can also be said to be a figure that highlights the work area 101.

Guide figure 130 includes a plurality of arrows, as shown in FIG. 4A. Each of the plurality of arrows points in a direction toward the work place 101 from a position different from the work place 101. The plurality of arrows included in the guide figure 130 have different lengths. The lengths of the plurality of arrows become shorter as they approach the work location 101. Note that the plurality of arrows may have the same length.

Multiple arrows are lined up in a straight line. Among the plurality of arrows arranged in a straight line, the starting point of the arrow farthest from the work location 101 (the rearmost arrow) is located near the worker 120. Specifically, the starting point of the rearmost arrow (that is, a part of the guide figure 130) is a circular range of a predetermined radius (for example, 1 m to several meters) centered on the work place immediately before the work place 101. Located within. The starting point of the rearmost arrow may be the work location immediately before the work location 101. This allows the operator 120 to easily find the arrow, and also allows the operator 120 to intuitively understand that the work location 101 exists on the tip end side of the arrow.

Further, the guide figure 131 includes a plurality of ring shapes, as shown in FIG. 4B. Each of the plurality of ring shapes surrounds the work location 101. For example, the plurality of ring shapes are concentric circles centered on the work location 101. Note that each of the plurality of annular shapes does not have to be circular, and may be oval, square, or rectangular. Alternatively, the plurality of annular shapes may be figures obtained by enlarging the outline of the drawing 111 projected onto the work area 101.

Among the plurality of annular shapes, a part of the outermost annular shape is located near the worker 120. Specifically, a part of the outermost annular shape (that is, a part of the guide figure 131) is a circular shape with a predetermined radius (for example, 1 m to several meters) centered on the work place immediately before the work place 101. It is located within the range of A part of the outermost annular shape may be a work place immediately before work place 101.

Note that the guide figure is not limited to an arrow or ring shape. For example, the guide figure may have a radial shape that extends outward from the work location 101 . Further, the annular shape or radial shape included in the guide figure does not have to be provided all around the work location 101, and may be provided only on the worker 120 side (the immediately previous work location side). .

[motion]
Next, the operation of the projection system 10 according to this embodiment will be explained using FIG. 5.

FIG. 5 is a flowchart showing the operation of the projection system 10 according to this embodiment. As shown in FIG. 5, first, the worker 120 installs the projection device 20 at the work site 100 (S10). The first installation location may be a location arbitrarily determined by the operator 120 or may be a location determined by the data processing device 30. After the projection device 20 is installed, the data processing device 30 correlates the actual work site 100 with architectural design data.

The projection device 20 projects a guide figure for guiding the worker 120 to the work location 101 (S20). For example, as shown in FIG. 4A or 4B, the projection device 20 projects a guide figure 130 or 131 for guiding the worker 120 to the work location 101, which is the target location determined by the data processing device 30. . At this time, the drawing 111 is not projected onto the work location 101.

Projection of the guide figure 130 or 131 is performed, for example, when the operator 120 instructs to start projecting a drawing by operating the terminal device 40 after completing the installation of the projection device 20. Alternatively, the guide figure 130 or 131 may be automatically projected after the projection device 20 is installed.

In the projection system 10 according to the present embodiment, after projecting the guide figure, the projection device 20 projects the drawing 111 onto the work location 101 (S30). For example, the projection device 20 projects the drawing 111 onto the work location 101 after a predetermined period of time has elapsed since the guide figure 130 or 131 was projected. The predetermined period may be a predetermined fixed time, or may be a time determined based on the time required for the worker 120 to move. For example, the time may be estimated based on the distance from the current position of the worker 120 (or the work location immediately before the work location 101) to the work location 101 and the walking speed of the worker 120. Further, the projection device 20 may project the drawing 111 after receiving an instruction to project the drawing 111 from the operator 120. The projection device 20 finishes projecting the guide figure 130 or 131 when projecting the drawing 111.

By projecting the drawing 111 onto the work location 101, the worker 120 can perform work such as marking work based on the projected drawing 111. After the work is completed, the worker 120 instructs the end of the work by operating the terminal device 40. The drawing 111 continues to be projected onto the work area 101 until the end of the work is instructed (No in S40).

After the end of the work is instructed (Yes in S40), if the next work location exists (Yes in S50), the process returns to step S20, and the projection device 20 performs a process to guide the worker 120 to the next work location. Project a guide shape.

Thereafter, the processes of steps S20 to S50 described above are repeated until the work at all work locations included in the work site 100 is completed (No in S50).

[Effects etc.]
As described above, the projection system 10 according to the present embodiment includes the projection device 20 that is installed at the work site 100 and projects a drawing onto each of a plurality of work locations at the work site 100. The projection device 20 further projects a guide figure 130 or 131 for guiding the worker 120 to a target location that is at least one of the plurality of work locations.

This allows the worker 120 to be guided to the work location 101, allowing the worker 120 to work efficiently, thereby shortening the construction period and reducing the burden on the worker.

Furthermore, for example, before projecting the drawing 111 onto the target location, the projection device 20 projects a guide figure 130 or 131 for guiding the worker 120 to the target location.

Thereby, the time required for the worker 120 to find the next work location can be shortened, so work efficiency can be improved.

Furthermore, for example, the projection device 20 projects at least a portion of the guide figure 130 or 131 to a position different from the target location.

Thereby, by projecting the guide figure at a position away from the work location 101, it is possible to make it easier for the worker 120 to find the guide figure. For example, by projecting at least a portion of the guide figure near the worker 120, the worker 120 can easily find the guide figure and be easily guided to the work location 101 by the guide figure.

Further, for example, the guide figure 130 is an arrow pointing toward the target location from a position different from the target location. Further, the guide figure 131 has a ring shape surrounding the target location.

This allows the operator 120 to easily recognize the position of the work location 101 using the arrow or ring shape.

Further, for example, the projection method according to the present embodiment includes a step in which the projection device 20 installed at the work site 100 projects a drawing onto each of a plurality of work locations on the work site 100, and and projecting a guide figure 130 or 131 for guiding the user to a target location, which is at least one of the work locations.

This allows the worker 120 to be guided to the work location 101, allowing the worker 120 to work efficiently, thereby shortening the construction period and reducing the burden on the worker.

[Modified example]
Next, a modification of the first embodiment will be described.

The projection system according to the modification of the first embodiment differs from the first embodiment in the timing of projecting the guide figure, the color or type of the guide figure, and the like. In the following, differences from Embodiment 1 will be mainly described, and descriptions of common features will be omitted or simplified. Note that the configuration of the projection system according to the modification of the first embodiment is the same as the configuration of the projection system 10 according to the first embodiment, so the configuration of the projection system 10 shown in FIGS. 2 and 3 will be described below. I will explain using.

[Modification 1]
First, a projection system according to Modification 1 will be described using FIGS. 6, 7A, and 7B. FIG. 6 is a flowchart showing the operation of the projection system 10 according to this modification. 7A and 7B are perspective views showing a work site 100 on which a guide figure 130 or 131 is projected by the projection system 10 according to this modification, respectively.

As shown in FIG. 6, first, similarly to Embodiment 1, worker 120 installs projection device 20 at a predetermined location on work site 100 (S10).

Next, the projection device 20 simultaneously projects a guide figure for guiding the worker 120 to the work location 101 and the drawing 111 corresponding to the work location 101 (S21). For example, the projection device 20 projects the guide figure 130 or 131 and the drawing 111 simultaneously, as shown in FIG. 7A or 7B. The subsequent processing is the same as in the first embodiment.

As described above, in the projection system 10 according to the present modification, the projection device 20 projects the drawing 111 onto the target location and at the same time projects the guide figure 130 or 131 for guiding the worker 120 to the target location.

In this way, the guide figure 130 or 131 and the drawing 111 are projected at the same time, so the worker 120 quickly works along the drawing 111 after being guided to the work location 101 by the guide figure 130 or 131. be able to. In other words, there is no need to wait for the projection of the drawing 111 after moving to the work location 101, and there is no need to instruct the projection of the drawing 111, so that the work can be performed more efficiently.

[Modification 2]
Next, a projection system according to modification 2 will be described using FIG. 8.

FIG. 8 is a perspective view showing an example of a guide figure projected by the projection system according to this modification. (a) to (d) of FIG. 8 each sequentially show the change over time of the guide figure projected onto the work site 100.

In this modification, the projection device 20 projects a dynamically changing figure as a guide figure. As shown in FIGS. 8A to 8D, the projection device 20 projects in the order of arrows 132a, 132b, 132c, and 132d. Arrows 132a to 132d each correspond to, for example, each arrow included in guide figure 130 shown in FIG. 4A.

Specifically, the projection device 20 projects the arrow 132b for a predetermined period of time, and then projects the arrow 132b. After projecting the arrow 132b for a predetermined period of time, the projection device 20 projects the arrow 132c. After projecting the arrow 132c for a predetermined time, the projection device 20 projects the arrow 132d. After projecting the arrow 132d, the projection device 20 may project the arrow 132a again. The projection device 20 may repeatedly project the arrows 132a to 132d.

The projection time of each of the arrows 132a to 132d is, for example, a predetermined time (eg, 1 second to several seconds), and may be the same time, but may be different times. Alternatively, the projection device 20 may detect the position of the worker 120, determine the timing of projecting each arrow according to the detected position, and project the arrow at the determined timing.

As described above, in the projection system 10 according to this modification, the projection device 20 projects a dynamically changing figure as a guide figure.

As a result, the guide figure changes dynamically, providing visual stimulation to the operator 120 and making it easier to find the guide figure.

Although FIG. 8 shows an example in which the projection device 20 projects a plurality of arrows 132a to 132d as guide figures, the present invention is not limited to this. For example, the projection device 20 may sequentially project the plurality of annular shapes shown in FIG. 4B one by one.

Further, although the projection device 20 projects the arrows 132a to 132d and the drawing 111 at the same time, the present invention is not limited thereto. The projection device 20 may project the drawing 111 after projecting the arrow 132d.

[Modification 3]
Next, a projection system according to modification 3 will be described using FIG. 9.

FIG. 9 is a perspective view showing a guide figure 133 projected by the projection system according to this modification. In this modification, the projection device 20 projects the guide figure 133 in a color different from the color in which the drawing 111 is projected. That is, the color of the guide figure 133 shown in FIG. 9 is a different color from the color of the drawing 111 projected onto the work location 101. For example, when the color of the drawing 111 is red, the color of the guide figure 133 is a color different from red, such as blue or green. The types of colors used for the drawing 111 and the guide figure 133 are not particularly limited, as long as there is a difference in color to the extent that the operator 120 can recognize the difference.

In FIG. 9, the arrows included in the guide figure 133 are shown as dotted lines to show the difference in color, but the guide figure 133 includes solid arrows. Note that the guide figure 133 may be a dotted arrow as shown in FIG. 9 .

As described above, in the projection system 10 according to this modification, the projection device 20 projects the guide figure 133 in a color different from the color in which the drawing 111 is projected.

As a result, the guide figure 133 and the drawing 111 are projected in different colors, so even if the guide figure 133 and the drawing 111 are projected at the same time, the operator 120 may confuse the guide figure 133 and the drawing 111. It is possible to prevent this from happening. Therefore, the occurrence of work errors can be suppressed, and work efficiency can be improved.

(Embodiment 2)
Next, Embodiment 2 will be described.

The projection system according to the second embodiment is different from the first embodiment in that the projection device projects a plurality of drawings onto a plurality of work locations at the same time. In the following, differences from Embodiment 1 will be mainly described, and descriptions of common features will be omitted or simplified. Note that the configuration of the projection system according to the second embodiment is the same as the configuration of the projection system 10 according to the first embodiment, so the configuration of the projection system 10 shown in FIGS. 2 and 3 will be used below. Give an explanation.

FIG. 10 is a flowchart showing the operation of the projection system 10 according to this embodiment. As shown in FIG. 10, first, similarly to Embodiment 1, worker 120 installs projection device 20 at work site 100 (S10).

Next, in the projection system 10, it is determined whether the projection device 20 projects a plurality of drawings onto a plurality of work locations at the same time (S60). The determination is made by the data processing device 30, for example. Specifically, the data processing unit 32 determines whether the projection range 110 includes a plurality of work locations based on the installation position of the projection device 20.

For example, if the projection range 110 includes a plurality of work locations, the data processing unit 32 determines to project a plurality of drawings onto these work locations at the same time. If the projection range 110 includes only one work location, the data processing unit 32 determines not to project multiple drawings at the same time. Furthermore, even if the projection range 110 includes multiple work locations, the data processing unit 32 determines not to project multiple drawings at the same time based on instructions from the worker 120 or the work manager. You can. For example, the worker 120 or the work manager determines whether or not multiple drawings are to be projected simultaneously, or which drawings are to be projected simultaneously, via the input unit 35 of the data processing device 30 or the operation reception unit 42 of the terminal device 40. You may also enter the number of sheets (number of work areas).

When projecting multiple drawings onto multiple work locations at the same time (Yes at S60), the data processing device 30 generates a guide figure that summarizes the multiple work locations (S70). The projection device 20 projects the generated guide figure (S20). A specific example of a guide figure that summarizes a plurality of work locations will be described later using FIGS. 11A to 11F. Note that the determination in step S60 and the generation in step S70 may be performed by the projection device 20.

If multiple drawings are not projected onto multiple work locations at the same time (No in S60), the projection device 20 projects a guide figure for guiding the worker 120 to one work location (S20). The processing after the projection of the guide figure is the same as in the first embodiment.

Next, specific examples of guide figures that summarize a plurality of work locations will be described using FIGS. 11A to 11F. 11A to 11F are perspective views each showing a work site 100 on which an example of a guide figure is projected by the projection system according to the present embodiment.

In each of FIGS. 11A to 11F, the projection range 110 of the projection device 20 includes three work locations 101, 102, and 103. Projection device 20 according to this embodiment projects drawings 111, 112, and 113 (see FIGS. 11C and 11D) onto each of three work locations 101, 102, and 103 simultaneously.

The guide figure 230 shown in FIGS. 11A and 11C, the guide figure 231 shown in FIGS. 11B and 11D, and the guide figure 232 shown in FIG. This is a guide figure for guidance. Further, a guide figure 233 shown in FIG. 11F is a guide figure for guiding the worker 120 to the plurality of work locations 101 to 104.

Specifically, the guide figures 230 to 233 guide the user to the work range 201. As shown in FIGS. 11A to 11F, the work range 201 is a range that includes a plurality of work locations 101 to 103 or a plurality of work locations 101 to 104. For example, the work range 201 is a circular or elliptical range that includes a plurality of work locations 101 to 103. As an example, the work range 201 is a circular or elliptical range defined so that a portion of each of the plurality of work points 101 to 103 or the plurality of work points 101 to 104 is inscribed.

As shown in FIGS. 11A and 11C, guide figure 230 includes a plurality of arrows. For example, the plurality of arrows are parallel to each other. Alternatively, the plurality of arrows may be arrows in a direction converging toward the center of the work range 201 (opposite to the radial direction from the center). At least one starting point of the plurality of arrows is located near the worker 120. Specifically, the starting point is located within a circular range of a predetermined radius (for example, 1 m to several meters) centered on the work location immediately before the work in the work range 201.

Further, the guide figure 231 has a ring shape surrounding the working range 201, as shown in FIGS. 11B and 11D. The guide figure 231 may match the outline of the work range 201. Note that the guide figure 231 may include a plurality of ring shapes that include the working range 201. By projecting a ring-shaped guide figure 231 larger than each work location, the worker 120 can easily find the guide figure 231 and be guided to the work range 201.

Note that in FIGS. 11A and 11B, no drawings are projected onto each of the work locations 101 to 103. On the other hand, in FIGS. 11C and 11D, corresponding drawings 111 to 113 are projected onto each work location 101 to 103, respectively. That is, in this embodiment as well, the guide figure 230 or 231 and the drawings 111 to 113 projected onto each work location may be projected at the same time.

The guide figure 232 shown in FIG. 11E is part of a ring surrounding the working range 201. The guide figure 232 may coincide with a part of the outline of the work range 201. The guide figure 232 is drawn so as to include a plurality of work points 101 to 103, which are target points on which drawings are simultaneously projected. For example, the length of the guide figure 232 is longer than the distance between the farthest working points among the plurality of working points 101 to 103. The guide figure 232 is a circular arc or an elliptical arc, but is not limited thereto.

The guide figure 233 shown in FIG. 11F is a line connecting a plurality of work locations 101 to 104, which are target locations on which drawings are simultaneously projected. Specifically, the guide figure 233 includes a line that connects the work area 101 and the work area 102, a line that connects the work area 102 and the work area 103, a line that connects the work area 103 and the work area 104, and a line that connects the work area 101 and the work area 102. It consists of four lines, including a line connecting the location 104 and the work location 101.

Note that the number of lines that make up the guide figure 233 is not limited to this. For example, the guide figure 233 further includes a line that connects the work area 101 and the work area 103, and a line that connects the work area 102 and the work area 104. It may also include a line. That is, the guide figure 233 may be a figure consisting of four sides and two diagonals of a rectangle whose vertices are each of the work locations 101 to 104. Alternatively, the guide figure 233 may be a rectangle having vertices at each of the work locations 101 to 104. Further, the guide figure 233 may be a polygonal line connecting the work locations 101 to 104 in this order.

Note that when the target location includes only two work locations, the guide figure 233 may be a single line connecting the two work locations. Further, although the line connecting the plurality of work locations is a straight line (line segment), it may be a curved line. For example, the line connecting multiple work locations may be a wavy line.

As described above, in the projection system 10 according to the present embodiment, when projecting a plurality of drawings 111 to 113 simultaneously onto each of a plurality of work locations 101 to 103, the projection device 20 can A guide figure 230 or 231 is projected to guide the worker 120 to the target location.

Thereby, the worker 120 can be guided to a plurality of work locations where drawings are projected at the same time. Since the worker 120 can proceed with the work in order starting from the work location closest to him/her, the work efficiency can be improved.

Further, for example, the guide figure 230 is an arrow pointing toward the target location from a position different from the target location. Further, the guide figure 231 has a ring shape surrounding the target location. Further, the guide figure 232 is at least a part of a ring surrounding the target location. Further, the guide figure 233 is a line connecting a plurality of target work locations 101 to 104.

This makes it possible for the operator 120 to easily recognize the positions of the work areas 101 to 104 using arrows, ring shapes, at least part of the ring, or lines connecting multiple work areas.

In FIGS. 11C and 11D, the drawings 111 to 113 are simultaneously projected onto the guide figures 230 or 231 at all the work locations 101 to 103 included in the work range 201, but the invention is not limited thereto. Specifically, the guide figure 230 or 231 and a drawing corresponding only to a part of the work area included in the work range 201 may be projected at the same time. For example, the projection device 20 may project only the guide figure 230 or 231 and the drawing 113 corresponding to the work location 103 at the same time. Alternatively, the projection device 20 may project the guide figure 230 or 231 and the drawings 112 and 113 at the same time, and may project the drawing 111 after the projection of the drawings 112 and 113 is completed. When the drawing 111 is projected, the projection of the guide figure 230 or 231 may be finished.

Furthermore, in the example shown in FIGS. 11E and 11F, the projection device 20 may project the drawings 111 to 113 simultaneously with the guide figures 232 and 233. At this time, the guide figure 233 and the drawings 111 to 113 may overlap, so as shown in the third modification, the projection device 20 may project the guide figure 233 and the drawings 111 to 113 in different colors.

(Embodiment 3)
Next, Embodiment 3 will be described.

The projection system according to the third embodiment differs from the first embodiment in that it is necessary to change the installation location of the projection device during the work at the work site. The projection device projects a guide figure for guiding the worker to the next installation location. In the following, differences from Embodiment 1 will be mainly described, and descriptions of common features will be omitted or simplified. Note that the configuration of the projection system according to the third embodiment is the same as the configuration of the projection system 10 according to the first embodiment, so the configuration of the projection system 10 shown in FIGS. 2 and 3 will be used below. Give an explanation.

FIG. 12 is a flowchart showing the operation of the projection system 10 according to this embodiment. As shown in FIG. 12, the processes (S10 to S50) from installing the projection device 20 to determining the presence or absence of the next work location are the same as in the first embodiment. Note that, similarly to the first modification of the first embodiment, the projection device 20 may project the guide figure and the drawing at the same time. Further, similarly to the second embodiment, the projection device 20 may project a guide figure that summarizes a plurality of work locations.

If the next work location exists (Yes in S50), the projection system 10 determines whether the next work location is within the projection range 110 of the projection device 20 (S80). The determination is made by the data processing device 30, for example. Specifically, the data processing unit 32 determines whether the next work location is included in the projection range 110 based on the installation position of the projection device 20.

If the next work location is included in the projection range 110 (Yes in S80), the process returns to step S20, and the projection device 20 projects a guide figure for guiding the worker 120 to the next work location.

If the next work location is not included in the projection range 110 (No in S80), the projection device 20 projects a guide figure for guiding the worker 120 to the planned installation location of the projection device 20 (S90).

FIG. 13 is a perspective view showing a work site 300 on which guide figures are projected by the projection system 10 according to the present embodiment. The worksite 300 shown in FIG. 13 is larger than the worksite 100 shown in FIG. Therefore, at the location where the projection device 20 is installed, the work site 300 includes a work location 301 that is not included in the projection range of the projection device 20. Therefore, it is necessary to bring the projection device 20 closer to the work area 301 to include the work area 301 within the projection range 110 .

At this time, it is difficult for the worker 120 to determine where in the work site 300 the projection device 20 should be installed. For example, if there are multiple unfinished work locations remaining at the work site 300, if the projection device 20 is installed at an appropriate installation location (planned installation location 321 shown in FIG. 13(a)), In some cases, all of the remaining work locations can be included within the projection range 110. On the other hand, if the projection device 20 is installed in an inappropriate installation location, some work areas will be outside the projection range 110, and it will be necessary to install the projection device 20 again.

In the projection system 10 according to the present embodiment, the projection device 20 projects a guide figure 330 onto the planned installation location 321, as shown in FIG. 13(b). For example, the projection device 20 uses a guide figure 330 to guide the worker 120 to the planned installation location 321 after the worker 120 finishes working at a work location included in the range where the drawing can be projected at the already installed location. to project.

The planned installation location 321 is determined by the data processing device 30, for example. Specifically, the data processing unit 32 determines, as the planned installation location 321, the location where the number of work locations included in the projection range 110 is the largest among the multiple work locations for which work has not yet been completed. Note that the method for determining the planned installation location 321 is not particularly limited.

The guide figure 330 is, for example, a circle centered on the planned installation location 321. The projection device 20 projects light not only on the outline of the circle but also on the inside. Note that the guide figure 330 may be projected at a position different from the planned installation location 321. For example, the guide graphic 330 may be an arrow pointing to the planned installation location 321, similar to the guide graphic 130 according to the first embodiment. Alternatively, the guide figure 330 may be in the shape of a plurality of rings surrounding the planned installation location 321, similar to the guide figure 131.

Since the planned installation location 321 is represented by the guide graphic 330, the operator 120 can place a mark or mark on the planned installation location 321. Thereby, as shown in FIG. 13C, the operator 120 can move the projection device 20 and install it at the planned installation location 321 (Step S10 in FIG. 12). Thereafter, the processes of steps S10 to S90 shown in FIG. 12 are repeated until all the work at the work site 300 is completed. Since the work area 301 is included in the projection range 110 of the projection device 20 after installation at the new location, the projection device 20 projects the drawing 311 onto the planned installation location 321, as shown in FIG. 13(c). can do.

As described above, the projection system 10 according to the present embodiment includes the projection device 20 that is installed at the work site 100 and projects a drawing onto each of a plurality of work locations at the work site 100. The projection device 20 further projects a guide figure 330 for guiding the worker 120 to the planned installation location 321 where the projection device 20 will be installed next.

Thereby, the guide figure 330 that guides the worker 120 to the planned installation location 321 is projected, so the worker 120 can easily install the projection device 20 at an appropriate location. Therefore, the time required to move the projection device 20 can be shortened, and work efficiency can be improved.

Further, for example, the projection device 20 is installed at a predetermined location of the work site 300, and after the worker 120 finishes work at a work location included in the range where the drawing can be projected at the predetermined location, the projection device 20 A guide figure 330 is projected to guide the user to the planned installation location 321.

Thereby, the guide figure 330 is projected after the work at the work location within the projection range 110 is completed, so that the projection device 20 can be quickly installed at the planned installation location 321. Therefore, the time required to move the projection device 20 can be shortened, and work efficiency can be improved.

Further, for example, the projection device 20 projects a guide figure 330 for guiding the worker 120 to the planned installation location 321 onto the planned installation location 321 .

Thereby, by projecting the guide figure 330 onto the planned installation location 321, the operator 120 can grasp the planned installation location 321 more accurately. Therefore, the projection device 20 can be easily installed at an appropriate location.

Further, for example, the projection method according to the present embodiment includes a step in which the projection device 20 installed at the work site 100 projects a drawing onto each of a plurality of work locations at the work site 100, and a step in which the projection device 20 installed at the work site 100 The method includes a step of projecting a guide figure 330 for guiding the device 20 to a planned installation location 321 where the device 20 will be installed next.

Thereby, the guide figure 330 that guides the worker 120 to the planned installation location 321 is projected, so the worker 120 can easily install the projection device 20 at an appropriate location. Therefore, the time required to move the projection device 20 can be shortened, and work efficiency can be improved.

Note that the projection system 10 according to the present embodiment does not need to project a guide figure for guiding the worker 120 to the next work location. That is, in the operation of the projection system 10 shown in FIG. 12, the projection of the guide figure (S20) may not be performed. Even in this case, the time required to change the installation location of the projection device 20 can be shortened, so work efficiency can be improved.

(others)
Although the projection system and projection method according to the present invention have been described above based on the above-described embodiments and modifications thereof, the present invention is not limited to the above-described embodiments.

For example, in each of the embodiments and modifications described above, the projection device 20, the data processing device 30, and the terminal device 40 are separate units, but they may be integrated. That is, the projection system 10 may be an integrated device in which each component is physically included inside or outside one housing.

Note that all the components constituting the projection system 10 do not have to be integrated. For example, only the projection device 20 and the terminal device 40 may be integrated. Alternatively, only the projection device 20 and the data processing device 30 may be integrated.

Further, the communication method between devices described in the above embodiment is not particularly limited. When wireless communication is performed between devices, the wireless communication method (communication standard) is, for example, ZigBee (registered trademark), Bluetooth (registered trademark), or short-range wireless communication such as wireless LAN (Local Area Network). be. Alternatively, the wireless communication method (communication standard) may be communication via a wide area communication network such as the Internet. Furthermore, wired communication may be performed between the devices instead of wireless communication. Specifically, the wired communication is communication using power line communication (PLC) or a wired LAN.

Further, in the above embodiments, the processing executed by a specific processing unit may be executed by another processing unit. For example, the projection device 20 may include processing units included in the data processing device 30 (for example, the data processing unit 32, the input unit 35, the display unit 36, etc.), and perform the processing executed by each processing unit. Furthermore, for example, the projection device 20 may include a processing section (for example, an operation receiving section 42, a display section 43, etc.) included in the terminal device 40, and perform processing executed by each processing section.

Further, the order of the plurality of processes may be changed, or the plurality of processes may be executed in parallel. Furthermore, the distribution of components included in the projection system to a plurality of devices is just one example. For example, components included in one device may be included in another device. The projection system may also be implemented as a single device.

For example, the processing described in the above embodiments may be realized by centralized processing using a single device (system), or may be realized by distributed processing using multiple devices. good. Furthermore, the number of processors that execute the above program may be a single processor or a plurality of processors. That is, centralized processing or distributed processing may be performed.

Furthermore, in the above embodiments, all or part of the components such as the control unit may be configured with dedicated hardware, or may be realized by executing a software program suitable for each component. Good too. Each component may be realized by a program execution unit such as a CPU (Central Processing Unit) or a processor reading and executing a software program recorded on a recording medium such as an HDD (Hard Disk Drive) or semiconductor memory. good.

Furthermore, components such as the control unit may be configured with one or more electronic circuits. Each of the one or more electronic circuits may be a general-purpose circuit or a dedicated circuit.

The one or more electronic circuits may include, for example, a semiconductor device, an IC (Integrated Circuit), or an LSI (Large Scale Integration). An IC or LSI may be integrated into one chip or into multiple chips. Here, it is called an IC or LSI, but the name changes depending on the degree of integration, and may be called a system LSI, VLSI (Very Large Scale Integration), or ULSI (Ultra Large Scale Integration). Furthermore, an FPGA (Field Programmable Gate Array) that is programmed after the LSI is manufactured can also be used for the same purpose.

Further, general or specific aspects of the invention may be implemented in a system, apparatus, method, integrated circuit, or computer program product. Alternatively, the computer program may be implemented in a computer-readable non-transitory recording medium such as an optical disk, HDD, or semiconductor memory. Further, the present invention may be realized by any combination of a system, an apparatus, a method, an integrated circuit, a computer program, and a recording medium.

In addition, forms obtained by applying various modifications to each embodiment that those skilled in the art can think of, or by arbitrarily combining the constituent elements and functions of each embodiment without departing from the spirit of the present invention. The form is also included in the present invention.

10 Projection system 20 Projection devices 100, 300 Work site 101, 102, 103, 104, 301 Work area 111, 112, 113, 311 Drawing 120 Workers 130, 131, 133, 230, 231, 232, 233, 330 Guide figure 132a, 132b, 132c, 132d Arrow 201 Work range 321 Planned installation location

Claims (11)

A projection device installed at a work site in a building under construction and projecting a drawing onto each of a plurality of work locations at the work site,
The projection device further projects a guide figure for guiding a worker to a target location that is at least one of the plurality of work locations or to a planned installation location where the projection device will be installed next ;
The projection device is installed at a predetermined location of the work site, and after the worker finishes work at a work location included in a range where the drawing can be projected at the predetermined location, Project the guide shape to guide the user to the planned location.
projection system. The projection system according to claim 1, wherein the projection device projects the guide figure for guiding the worker to the target location before projecting the drawing onto the target location. The projection system according to claim 1, wherein the projection device projects the drawing onto the target location and simultaneously projects the guide figure for guiding the worker to the target location. When simultaneously projecting the plurality of drawings onto each of the plurality of work locations, the projection device projects the guide figure for guiding the worker to the target locations, which are all the work locations projected simultaneously. The projection system according to claim 2 or 3. The projection system according to any one of claims 2 to 4, wherein the projection device projects at least a part of the guide figure to a position different from the target location. The guide figure is an arrow pointing toward the target location from a position different from the target location, at least a part of a ring surrounding the target location, or a line connecting a plurality of work locations that are the target locations. The projection system according to any one of items 2 to 5. The projection system according to any one of claims 1 to 6, wherein the projection device projects the guide figure in a color different from a color in which the drawing is projected. The projection system according to any one of claims 1 to 7, wherein the projection device projects a dynamically changing figure as the guide figure. comprising a projection device installed at a work site and projecting a drawing onto each of a plurality of work locations at the work site,
The projection device further projects a guide figure for guiding a worker to a target location that is at least one of the plurality of work locations or to a planned installation location where the projection device will be installed next;
The projection device is installed at a predetermined location of the work site, and after the worker finishes work at a work location included in a range where the drawing can be projected at the predetermined location, A projection system that projects the guide figure for guiding to a scheduled location. The projection system according to claim 9, wherein the projection device projects the guide figure for guiding the worker to the planned installation location onto the planned installation location. A projection device installed at a work site in a building under construction projects a drawing onto each of a plurality of work locations at the work site;
projecting a guide figure for guiding a worker to at least one of the plurality of work locations or to a planned installation location where the projection device will be installed next ;
In the step of projecting the guide figure, the guide figure is installed at a predetermined location of the work site, and after the worker finishes working at a work location included in a range where the drawing can be projected at the predetermined location, projecting the guide figure for guiding the person to the planned installation location;
Projection method.

Images