JP2007041152A - Arrangement grid creation system and hall using the same - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an arrangement grid creation system and a hall using the same, in which various equipment arrangement works are made easy and its work time is significantly reduced, by dispensing with the work of calculating arrangement positions of various equipment by measurement and work of providing a mark. <P>SOLUTION: A user creates arrangement grid data for projecting to a floor face F of the hall by using an arrangement grid creating device 1. A distortion correction device 2 corrects distortion of the arrangement grid data created by the arrangement grid creating device 1, based on a shape of the floor F and a tilt angle with respect to the floor face F of a light axis and a distance to the floor face F of a projector 3, and a video signal is generated from the corrected arrangement grid data and output to the projector 3. A shape of the arrangement grid displayed by an image which is projected from the projector 3 to the floor face F by the video signal is indicated by a real scale and turns into a rectangular shape due to the distortion correction. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to an arrangement grid generation system that displays an arrangement grid of various facilities including seating chairs such as spectators and visitors on the floor, and a venue using the arrangement grid generation system.

  In a multi-purpose venue (hall) where you can hold concerts, theater performances, gatherings, etc., seats and equipment for seating for audiences and visitors, etc., depending on the purpose of the event, or on the contrary It is necessary to do it each time.

In such a venue, for example, a floor board that can be opened and closed, and a stage device composed of a chair or the like that can be stored in the lower part of the floor board, and a device that turns and lifts the stage device as a permanent installation Some are provided (for example, Patent Document 1).
Japanese Patent Laid-Open No. 63-110366 (the second page, upper left column, lines 4 to 19; FIG. 1 of the drawings)

  The permanent equipment disclosed in the above-mentioned Patent Document 1 has a problem that it is a large-scale equipment, has a high installation cost, and must be installed at the time of construction.

  For this reason, facilities such as chairs are not fixed or permanent, and venues (facility) are generally re-arranged at each event. In such a general venue, various facilities such as chairs are relocated each time the event is held, and the work is complicated. In other words, in the work of arranging various equipment such as chairs, when the layout of the various equipment is determined according to the purpose of the event, the position to be measured and determined by a major measure is used, and then the floor is marked with a string or tape. The work was complicated because the equipment was arranged after the installation.

  The present invention has been made in view of the above-described points, and the object thereof is to eliminate the need for an operation of providing an index or a mark by actually measuring the arrangement positions of various facilities, and facilitates the arrangement of various facilities. An object of the present invention is to provide an arrangement grid generation system capable of greatly shortening work time and a venue using the arrangement grid generation system.

  In order to achieve the above-described object, in the invention of the arrangement grid generation system according to claim 1, a display unit that displays a plan view of a venue that is an arrangement target of various facilities, and the plan view displayed on the display unit An arrangement having an input unit for inputting an instruction for creating an arrangement grid corresponding to the arrangement position of the equipment, and a grid creation unit for creating an arrangement grid for the plan view based on the instruction input by the input unit A grid creation device; a projection device disposed on a ceiling or a wall surface of the venue; and a projection device that projects and displays an image of an arrangement grid on the floor surface of the venue; and an image of the arrangement grid that is projected from the projection device onto the floor surface Arrangement grid information obtained from the arrangement grid creation apparatus and the arrangement position information of the projection apparatus and the floor so that there is no distortion of the image on an actual scale when displayed on the floor surface. The corrected based on the shape information, and wherein the wo have a distortion correcting unit for outputting a video signal comprising data of the corrected placement grid to the projection device.

  According to the invention of the arrangement grid generation system of claim 2, in the invention of claim 1, the arrangement grid creation device arbitrarily divides the plan view manually as an arrangement grid creation mode set by an instruction from the input unit. And a manual creation mode for creating a placement grid and a split creation mode for creating a placement grid by dividing the plan view based on a division pattern stored in a storage unit in advance. .

  In the invention of the arrangement grid generation system according to claim 3, in the invention of claim 1 or 2, the arrangement grid creation device is selected in accordance with an instruction from the input unit in the plan view displayed on the display unit. It is characterized in that only the area of is set as an arrangement grid creation target.

  According to a fourth aspect of the invention of the arrangement grid generation system according to any one of the first to third aspects, the arrangement grid creation device has means for acquiring the data of the plan view from the outside. And

  In the invention of the venue using the arrangement grid generation system according to claim 5, the arrangement grid system according to claim 1 can be used to project and display an image of the arrangement grid on the floor surface on which various facilities are arranged. Features.

  The arrangement grid generating system of the present invention and the invention of the venue using the same can create and confirm in advance an arrangement grid that serves as a marker of the arrangement of various facilities, and can also be used on the floor of the venue where the various facilities are arranged. The placement grid can be projected and displayed on an actual scale without distortion, which eliminates the need to determine the location of various equipment by actual measurement and work to provide landmarks, resulting in easy placement of equipment and a significant reduction in work time. There is an effect that can be done.

Embodiments of the present invention will be described below.
(Embodiment 1)
FIG. 1 shows a system configuration of the present embodiment. The system includes an arrangement grid creation device 1 installed in a management center or the like, a distortion correction device 2 and a projection (projection) device 3 installed in a venue as a site. The arrangement grid data created by the data transmission unit 4 formed of a network or a storage medium is transmitted from the arrangement grid creation apparatus 1 to the distortion correction apparatus 2.

  Here, the arrangement grid creation device 1 includes an arithmetic processing unit 10 having a function as a grid creation unit for creating an arrangement grid and a function for controlling each unit, an input unit 11 including a pointing device such as a mouse and a keyboard, and an arithmetic operation. An input between a hard disk, a storage medium such as a CD or a DVD, and a drive device for reading / writing or reading data under the control of the processing unit 10 and an external device such as a scanner. An output interface 13, a display unit 14 including a monitor device, a display control unit 15 for displaying an image on the display unit 14 under the control of the arithmetic processing unit 10, and a network that is one of the data transmission units 4. It comprises a communication control unit 16 for connection and a main storage unit 17 such as a RAM used for data expansion and the like. The arrangement grid creation device 1 is actually realized by executing application software for creating the arrangement grid on a general-purpose computer device.

  The external storage device 12 constitutes a storage unit by storing data in a storage medium to be used, and a plan view of a venue that is a target of arrangement of various facilities such as a chair on a medium such as a CD or DVD or a hard disk 1 is stored in the hard disk, the second storage unit 122 is stored in the hard disk as described later, and is specified by the user through the input unit 11 as described later. A third storage unit 123 that stores area and point data, and a third storage unit that stores the area and point data stored in the third storage unit 123 on the hard disk as point and area data on the floor plan of the venue 4 storage units 124.

  As for the floor plan data of the hall to be stored in the first storage unit 121, for example, the data created by CAD is taken in through a network connected to the communication control unit 16, or the data stored in the storage medium is taken in. 10 obtained as a result of conversion by a conversion unit provided as a function of 10 or a plan view made up of a paper drawing is converted into image data by a scanner connected to the input / output interface 13, and is provided as a function of the arithmetic processing unit 10. The raster vector conversion function extracts graphic information such as line segments and circles, and finally obtains plan view data. The raster vector conversion function can be realized using corresponding commercially available OCR software or the like. In this way, it is easy to use a plan view of an existing venue by taking plan view data from the outside.

  The projection device 3 is configured by a so-called projector that receives a video signal (image signal) from the outside and projects the video (image) onto a surface serving as a screen, and can project the image onto the floor F of the target venue. Mounted on the ceiling or wall.

  The distortion correction device 2 is a communication control unit 20 (or a drive device for reading data from a storage medium storing the placement grid data) for receiving the placement grid data from the placement grid creation device 1 through the data transmission unit 4 comprising a network. And an installation position storage unit 21 for storing information on the installation position of the projection device 3 (an inclination angle of the optical axis X, which will be described later, a distance to the floor surface F of the optical axis X), and the floor shape of the target venue The floor shape storage unit 22 for storing the data and the image of the arrangement grid projected from the projection device 3 onto the floor surface F are arranged on an actual scale and without distortion of the image when displayed on the floor surface F. A process for correcting the arrangement grid data acquired from the grid creation device 1 based on the arrangement position information of the projection device 3 and the shape information of the floor surface and the corrected arrangement group Head of data is converted into a video signal is one having a distortion correction processing section 23 having a video signal generation function 23a for outputting the projection device 3. The distortion correction device 2 is actually realized by executing application software for distortion correction processing on a general-purpose computer device, and each of the storage units 21 and 22 is configured by an external storage device such as a hard disk.

  Next, the processing operation at the time of creating the arrangement grid in the present embodiment will be described with reference to the flowcharts of FIGS.

  First, when the arrangement grid creation device 1 is activated to start the arrangement grid creation process, a menu screen is displayed on the display unit 2 under the control of the arithmetic processing unit 10, and the user is targeted using the input unit 11 from the menu screen. When the venue to be selected is selected, the arithmetic processing unit 10 reads the plan view data of the venue stored in the first storage unit 121 in advance, and displays the display unit through the display control unit 15 under the control of the arithmetic processing unit 10. A plan view image is displayed at a predetermined position 14 (step S1).

  Next, the arithmetic processing unit 10 checks whether or not the area where the equipment is to be arranged on the plan view has been input based on whether or not the area data corresponding to the plan view is stored in the fourth storage unit 124 (step S2). If the area has been input, the area data is read from the fourth storage unit 124 and displayed so as to overlap the area on the plan view displayed on the display unit 14 (step S3).

  The user examines whether or not there is a desired area in the displayed area (step S4), and if there is a desired area, the user clicks and designates the area with the mouse of the input unit 11 ( Step S5). If there is no desired area, for example, an area input button (not shown) displayed on the display unit 14 is clicked.

  Here, the arithmetic processing unit 10 shifts to an operation mode in which the user inputs an area when there is no input area in the above-described step S2 or when it is detected that the user clicked the area input button in step S4 (step S4). S6). The flow of this operation mode is shown in the flowchart of FIG.

  In this operation mode, when the user clicks the start point of the outer periphery of the region to be set on the plan view displayed on the display unit 14 using the mouse of the input unit 11 (step 61), the arithmetic processing unit 10 The position data of the starting point is read and stored in the third storage unit 123, and the display of the outer periphery of the region on the plan view displayed on the display unit 14 is updated (step S62).

  When the next vertex is clicked (step S63), the arithmetic processing unit 10 stores the position data of the vertex in the third storage unit 123 (step S64). Then, in the next step S65, the arithmetic processing unit 10 determines whether or not the vertex is an end point, that is, determines whether or not it has returned to the start point. If not, the process returns to step S62 until the end point is determined. The processes in steps S62 to S65 are repeated. If the end point is determined in step S65, the arithmetic processing unit 10 converts the vertex sequence starting from the start point into a position on the plan view based on the position data stored in the third storage unit 123. In step S67, an area on the plan view is obtained, the obtained area is stored in the fourth storage unit 124 in step S68, and the process returns to step S2 in FIG.

  When the user designates a desired area in step S5 of FIG. 2, the arithmetic processing unit 10 instructs the user to manually create an arrangement grid for the area in the next step S7 or automatically divides the area. A selection menu for selecting whether to create a division creation mode is presented on the display screen.

  When the division creation mode is selected here, the arithmetic processing unit 15 causes the user to display a plurality of division patterns (for example, the number of seats) stored in the first storage unit 121 in advance together with a plan view on the display screen. . The user selects a desired division pattern from the displayed division patterns using the mouse of the input unit 11 (step S8). When the division pattern is selected, the arithmetic processing unit 10 performs a process for obtaining the shape of the arrangement grid that divides the region based on the designated region data and the division pattern (step S9), and stores it in the second storage unit 122. The stored arrangement grid data is updated (step S10), and the creation of the arrangement grid data for the designated area is terminated. As described above, since the process for obtaining the placement grid is performed only in the region, the time required for the creation process of the placement grid is reduced. Also, in the split creation mode, it is not necessary to create a layout grid to be created from scratch, so that the time required for creating the layout grid can be shortened.

  On the other hand, when the manual creation mode is selected in step S7, the operation shifts to the manual creation mode operation from step S11. In this case, the user first clicks the starting point of the grid line on the plan view displayed on the display unit 14 (step S11). When the start point is input, the arithmetic processing unit 10 stores the position data of the start point in the third storage unit 123 and updates the grid line display on the plan view according to the mouse pointer position (step) S12). When the next vertex is clicked in step S13, the arithmetic processing unit 10 stores the position data of the vertex in the storage unit 123 (step S14), and whether or not the vertex is the end point in the next step S15. to decide. In this case, for example, when the user double-clicks to specify a vertex with the mouse, the arithmetic processing unit 10 determines that this vertex is the end point.

  When the user moves the mouse pointer on the screen of the display unit 14 and sequentially designates vertices, the arithmetic processing unit 10 determines the grid line shape on the screen based on the subtraction position of the mouse pointer and the data of the previous vertex. Keep updating the display.

  When the user designates the end point by double-clicking, the arithmetic processing unit 10 determines that the grid line designation operation has been completed from this double-click, and determines the start point from the position data stored in the third storage unit 123. The included vertex sequence is converted into a sequence of points on the plan view (step S16), grid lines conforming to the plan view are obtained in step S17, and the arrangement grid data stored in the second storage unit 122 is updated. As a result, the creation of the placement grid by manual creation is completed.

  If the image of the arrangement grid created as described above is projected and displayed on the floor F using the projection device 3 installed at the venue, the arrangement positions of various equipment such as chairs can be known. As shown in FIG. 4, when the optical axis X of the projection device 3 and the floor surface F are not perpendicular, even if the original image α of the arrangement grid is a rectangular image as shown in FIG. Since the distance between the projection device 3 and the floor surface F is different within the range, the image of the arrangement grid displayed on the floor surface F is a trapezoidally distorted image α ′.

  The image of the arrangement grid displayed on the floor surface F without such distortion needs to be a rectangular image similar to the original image α, and the size of the arrangement grid on the floor surface F must be an actual scale corresponding to the equipment. Therefore, in the present embodiment, the distortion is corrected by correcting the arrangement grid data created as described above by the distortion correction apparatus 2, and the arrangement grid data after correction is performed after correcting the dimensions of the arrangement grid data. Data is converted to video signals.

  The distortion correction device 2 receives the arrangement grid data from the arrangement grid creation device 1 through the data transmission unit 4 formed of a network, or receives the data through the data transmission unit 4 formed of a storage medium such as a CD or DVD in which the arrangement grid data is written. It has become.

  Since the received arrangement grid data is data corresponding to the rectangular arrangement grid created on the floor plan of the venue, the image of the arrangement grid projected from the projection device 3 onto the floor F using the data as it is is As described above, trapezoidal distortion occurs due to the relationship between the inclination and distance of the optical axis X of the projection apparatus 3 with respect to the floor surface F, and the scale does not become an actual scale. Therefore, the distortion correction apparatus 2 includes the installation position storage unit 21 and the floor shape storage unit 22 described above, and the floor read out from the storage units 21 and 22 when the distortion correction processing unit 23 corrects the arrangement grid data. From the surface shape information and the projection apparatus installation position information, the inclination angle of the floor surface F with respect to the optical axis X of the projection apparatus 3 is obtained, and mapping processing for pasting the arrangement grid on the surface assumed from this inclination angle is performed. Correct the original placement grid data. Further, the distortion correction processing unit 23 obtains the distance from the projection device 3 to the floor surface F, and the dimension when the arrangement grid is projected on the floor surface F from the distance and the magnification data of the image with respect to the distance of the projection device 3 is the actual scale. The arrangement grid data is further corrected so that Then, the corrected arrangement grid data is converted into a video signal corresponding to the projection device 3 by the video signal generation function 23 a and output to the projection device 3.

  The projection device 3 projects and displays the image of the arrangement grid on the floor surface F by the video signal from the video signal generation function 23a. Here, an image using the corrected arrangement grid data is an image in which the arrangement grid has a trapezoidal shape as shown in FIG. 5B when projected from the projection device 3 onto a plane perpendicular to the optical axis X. β is corrected based on the shape information of the floor surface F and the projection apparatus installation position information, and therefore, as shown in FIG. 5A, the image β ′ of the arrangement grid projected and displayed on the floor surface F Is a rectangle like the layout grid created on the floor plan of the venue.

  Thus, as shown in FIG. 6, the equipment 5 can be set at a predetermined position in the venue by arranging the equipment 5 such as a chair on the basis of the image β ′ of the arrangement grid displayed on the floor F. . For this reason, it is not necessary to perform an indexing by actually measuring the arrangement position and an operation of providing a mark, and the arrangement work of the equipment 5 can be performed easily and in a short time.

  When the projection device 3 is installed at the venue, an image corresponding to the reference arrangement grid is projected onto the floor F, and the dimensions of the arrangement grid on the floor F when projected and the grid lines When correcting the arrangement grid data by performing calibration for actually measuring the inclination angle and storing the actual measurement value in the storage unit, the dimensions of the arrangement grid serving as a reference, the dimensions of the arrangement grid on the floor F, The distance on the floor surface F is obtained from the magnification data of the image of the projection device 3, the dimension of the arrangement grid data is corrected based on this distance, and the floor surface F of the optical axis X is determined from the inclination angle of the grid line obtained by calibration. It is also possible to obtain a tilt angle and perform the above-described mapping process on the surface having the tilt angle to correct the distortion.

  By the way, the above-described distortion correction is performed when the shape of the floor surface F is a flat surface. For example, when the floor surface F is stepped, the data of the arrangement grid as shown in FIG. When converted into a signal and projected onto the floor surface F, an image α ′ having trapezoidal distortion as shown in FIG.

  Therefore, when the distortion correction processing unit 23 indicates that the floor shape information indicates a staircase shape, when the distortion grid processing device 23 receives the arrangement grid data created by the arrangement grid creation device 1, the distortion correction processing unit 23 performs steps as shown in FIG. A process of dividing the arrangement grid data for each of the areas a to e corresponding to the tread surface and the kick surface to be configured is performed. After the division processing, mapping processing of the arrangement grids of the respective areas a to e is performed from the inclination angles of the surfaces of the areas a to e with respect to the optical axis X of the projection device 3, and each area a as shown in FIG. The trapezoidal distortion is corrected at .about.e, and the arrangement grid data of the respective areas a.about.e are connected to form one arrangement grid data shown in FIG. The arrangement grid data is further subjected to dimension correction as described above, converted into a video signal by the video signal generation function 23a, and output to the projection device 3. When the projection device 3 projects and displays the image β ′ of the arrangement grid on the floor surface F by this video signal as shown in FIG. 8B, the displayed arrangement grid is displayed in a rectangular shape.

  By the way, when the target venue is wide and one projector 3 cannot project and display the arrangement grid on the floor surface F, the projection display is divided by each projector 3 using a plurality of projectors 3. Also good. In this case, the data of the arrangement grid for projection by each projection device 3 is divided so as to correspond to each other, and the installation position information of the projection device 3 corresponding to the shape information of the floor surface F projected by each projection device 3 is divided. Distortion correction and dimension correction of the arrangement grid data divided based on the above are performed as described above. In this case, an arrangement grid corresponding to each projection device 3 is configured so that brightness correction is performed in a region where the divided images resulting from the projection of the projection device 3 are overlapped and processing is performed so that the grid lines are not double lines in the overlapped image. Adjust the data of.

FIG. 9 shows an example in which the image β ′ of the arrangement grid is projected on the floor F by the two projection devices 3 and 3 using the arrangement grid data after distortion correction. The inclination and distance of the optical axis with respect to the floor surface F are different, so that the projections of the arrangement grids displayed by the projections of the two projectors 3 and 3 are rectangular and displayed in real scale. Correction of the arrangement grid data divided corresponding to the devices 3 and 3 is performed according to the respective projection devices 3 and 3.
(Embodiment 2)
By the way, in the arrangement grid creation device 1 of the first embodiment, the arrangement grid is created by drawing grid lines on the floor plan of the venue displayed on the display unit 14. It is characterized in that equipment icons are pasted on the floor plan of the venue on the screen, and an arrangement grid is created in accordance with the pasting. In addition, in the arrangement grid device 1, a fifth storage unit 125 configured by storing in advance a storage medium such as a hard disk, a CD, or a DVD, the shape and dimensions of various facilities arranged in the venue, which is input by the user as will be described later. A sixth storage unit 126 configured by storing the arranged positions of the various facilities in the hard disk is added as indicated by a broken line in FIG.

  Next, operation | movement of the arrangement | positioning grid preparation apparatus 1 of this embodiment is demonstrated based on the flowchart of FIG.

  First, when the operation of creating the arrangement grid is started (step S21), the arithmetic processing unit 10 reads the floor plan data of the venue from the first storage unit 121 and displays it on the display unit 14 via the display control unit 15. (Step 22). At the same time, icons of various facilities stored in the fifth storage unit 125 are displayed on the screen of the display unit 14 (step S23).

  Next, on the screen, the user drags the mouse pointer according to the icon of the facility to which the mouse pointer is to be placed (step S24), and moves the mouse pointer on the plan view (step S25). The arithmetic processing unit 10 performs control for updating the display position of the icon according to the position of the movement of the mouse pointer via the display control unit 15 (step S26). When it is detected in step S27 that the icon is dropped, the arithmetic processing unit 10 acquires the dropped position (step S28), converts the position into a position on the plan view (step S29), and The converted position is stored in the sixth storage unit 126 (step S30). Thereafter, the user repeatedly performs dragging, moving, and dropping operations of the icons, thereby performing an operation of sequentially arranging the equipment on the plan view. When the arrangement of the equipment is completed and the user clicks an end button displayed on the screen, for example, the arithmetic processing unit 10 detects this in step S31, and after this detection, stores it in the sixth storage unit 126. An arrangement grid is obtained based on the arrangement position data of the installed equipment (step S32), the arrangement grid data in the second storage unit 122 is updated with the arrangement grid data (step S33), and the arrangement grid creation is completed.

  As described above, in the present embodiment, the placement grid can be created while imagining the layout of the equipment by directly pasting it on the plan view using the icon of the equipment that the user wants to place.

  In addition, by designating the arrangement area on the plan view in advance, the calculation processing unit 10 may reduce the burden of calculation processing for obtaining the arrangement grid.

1 is a system configuration diagram of Embodiment 1. FIG. 3 is a flowchart for explaining processing operations according to the first embodiment. 5 is a flowchart for explaining a region input processing operation according to the first embodiment. FIG. 6 is an explanatory diagram illustrating a reason for performing distortion correction of arrangement grid data used for projection according to the first embodiment. It is a distortion correction explanatory view of arrangement grid data used for projection of Embodiment 1. It is an example of arrangement of equipment using a picture of an arrangement grid of Embodiment 1. It is explanatory drawing of the distortion correction process of the arrangement grid data corresponding to the step-like floor surface in Embodiment 1. FIG. 2A and 2B are examples of images using arrangement grid data corresponding to the stepped floor surface of the first embodiment, where FIG. 1A is an example of images when distortion correction is not performed, and FIG. 2B is an example of images when distortion correction is performed. FIG. It is explanatory drawing at the time of using two projectors in Embodiment 1. FIG. 10 is a flowchart for explaining a processing operation for creating a wiring grid according to the second embodiment.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Arrangement grid creation apparatus 10 Arithmetic processing part 11 Input part 12 External storage devices 121-126 Storage part 13 Input / output interface 14 Display part 15 Display control part 16 Communication control part 17 Main storage part 2 Distortion correction apparatus 20 Communication control part 21 Installation Position storage unit 22 Floor shape storage unit 23 Distortion correction processing unit 23a Video signal generation function 3 Projector 4 Data transmission unit F Floor surface

Claims (5)

A display unit that displays a plan view of a venue to be arranged for various facilities, and an input unit that inputs an instruction for creating a layout grid corresponding to the layout position of the facility on the plan view displayed on the display unit And an arrangement grid creation device having a grid creation unit for creating an arrangement grid for the plan view based on an instruction input by the input unit;
A projection device disposed on a ceiling or a wall of the venue, and projecting and displaying an image of an arrangement grid on the floor of the venue;
The arrangement grid data acquired from the arrangement grid creation apparatus is projected so that the image of the arrangement grid projected onto the floor surface from the projection apparatus is displayed on the floor surface in real scale and without distortion of the image. An arrangement comprising: a distortion correction device that corrects based on the arrangement position information of the apparatus and the shape information of the floor surface, and outputs a video signal composed of the corrected arrangement grid data to the projection apparatus. Grid generation system. The arrangement grid creation device stores in advance a manual creation mode for creating an arrangement grid by arbitrarily dividing the plan view manually as an arrangement grid creation mode set by an instruction from the input unit. The arrangement grid generation system according to claim 1, further comprising: a division creation mode that divides the plan view based on a divided pattern to create an arrangement grid. 3. The arrangement grid creation device uses only a desired region selected by an instruction from the input unit in a plan view displayed on the display unit as an arrangement grid creation target. The described arrangement grid generation system. The arrangement grid generation system according to any one of claims 1 to 3, wherein the arrangement grid creation device includes means for acquiring the data of the plan view from the outside. A venue, wherein the placement grid system according to claim 1 is used to project and display an image of the placement grid on a floor on which various facilities are placed.

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