Map creation system and processing device

Abstract

To provide a map creation system capable of creating a map that allows visibly checking the attribute, location, and direction of a utensil.SOLUTION: A storage unit 11 constituting a map creation system 100 stores map information regarding an area where a utensil 200 is to be installed and attribute information regarding the attribute of the utensil 200. A geomagnetic sensor 30 is attached to the utensil 200 to detect the geomagnetic field. A transmitter 20 is attached to the utensil 200 to transmit radio signals including detection results by the geomagnetic sensor 30. A receiver 10 receives the radio signals transmitted by the transmitter 20. A measurement unit 121 executes measurement processing to measure the location and direction of the utensil 200 based on the radio signals received by the receiver 10 and acquire location information and direction information representing measurement results. A drawing unit 122 executes drawing processing to draw a utensil image representing the attribute corresponding to the attribute information at a position corresponding to the location information on a map image based on the map information in such a manner that a direction corresponding to the direction information can be identified.SELECTED DRAWING: Figure 3

Description

[Technical field]

[0001] The present disclosure relates to a map generating system and processing device, and more particularly to a map generating system and processing device that generates a map showing the location of equipment in a space. [Background technology]

[0002] Patent Document 1 describes an equipment management system that uses wireless communication to determine the position of equipment present in a space and also acquire shape information from the equipment, and creates a layout diagram showing the position and shape of each equipment within the space based on the positioning results and shape information. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2005-179026 A Summary of the Invention [Problem to be solved by the invention]

[0004] With the equipment management system of Patent Document 1, it is difficult to create a layout diagram that allows visual confirmation of equipment attributes, location, and orientation (for example, where various pieces of furniture such as desks and sofas are located within an area, and in what orientation (east-west, north-south) they are placed).

[0005] An object of the present disclosure is to provide a map creation system and processing device capable of creating a map in which the attributes, positions, and orientations of fixtures are visible. [Means for solving the problem]

[0006] A map creation system according to one aspect of the present disclosure includes a storage unit, a transmitter, a receiver, a measurement unit, and a drawing unit. The storage unit stores map information related to a map of an area in which a fixture is installed, and attribute information related to attributes of the fixture. The geomagnetic sensor is attached to the fixture and detects geomagnetism. The transmitter is attached to the fixture and transmits a radio signal including a detection result of the geomagnetic sensor. The receiver receives the radio signal transmitted by the transmitter. The measurement unit executes a measurement process. The measurement process is a process of measuring a position and a direction of the fixture based on the radio signal received by the receiver, and acquiring position information and direction information indicating a measurement result. The drawing unit executes a drawing process. The drawing process is a process of drawing a fixture image indicating an attribute corresponding to the attribute information at a position corresponding to the position information on a map image based on the map information, in such a manner that a direction corresponding to the direction information can be identified.

[0007] In a processing device according to one aspect of the present disclosure, map information relating to a map of an area in which a fixture is installed and attribute information relating to attributes of the fixture are stored in a memory unit, geomagnetism is detected by a geomagnetic sensor attached to the fixture, a radio signal including the detection result of the geomagnetic sensor is transmitted by a transmitter attached to the fixture, and the radio signal transmitted by the transmitter is received by a receiver. The processing device includes a measurement unit and a drawing unit. The measurement unit executes a measurement process. The measurement process is a process of measuring the position and direction of the fixture based on the radio signal received by the receiver, and acquiring position information and direction information indicating the measurement result. The drawing unit executes a drawing process. The drawing process is a process of drawing a fixture image indicating attributes corresponding to the attribute information at a position corresponding to the position information on a map image based on the map information, in such a way that the direction corresponding to the direction information can be identified. Effect of the Invention

[0008] The map creation system and processing device disclosed herein have the advantage of being able to create a map that allows visual confirmation of the attributes, position, and orientation of fixtures. [Brief description of the drawings]

[0009] [Figure 1] FIG. 1 is a perspective view of a map creation system according to an embodiment of the present disclosure and an indoor space in which the map creation system is used, as viewed from an angle. [Diagram 2] FIG. 2 is a perspective view of the interior of the same as seen from above. [Diagram 3] FIG. 3 is a block diagram of the map creation system. [Figure 4] FIG. 4 is a flowchart illustrating the process of the map creation system. [Diagram 5] FIG. 5 is a flowchart illustrating a measurement process included in the above process. [Figure 6] FIG. 6A is a data structure diagram of attribute information stored in a storage unit constituting the map creation system of the above, and FIG. 6B is a data structure diagram of position information and direction information further stored in the storage unit of the above. [Figure 7] FIG. 7 is a schematic diagram showing a first output example (map image) of the map creation system according to the embodiment. [Figure 8] FIG. 8 is a schematic diagram showing a second output example of the map creation system (a map image on which a fixture image including characters that may indicate a direction is drawn). [Figure 9] FIG. 9 is a schematic diagram showing a third output example (a map image on which attribute information is further drawn) of the map creation system. [Figure 10] FIG. 10 is a schematic diagram showing a fourth output example of the map creation system (a screen including a map image having a different scale from the map image and a furniture image drawn at a size according to the scale of the map image). [Figure 11] FIG. 11 is a schematic diagram showing another output example of the map creation system (a map image on which a fixture image having a shape capable of indicating the direction of the fixture is drawn). DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0010] In this embodiment, "direction" includes the distinction of "facing direction." For example, "X direction" means the direction of the arrow on the X axis. In the following description, the direction is expressed as an angle θ (where -180°<θ≦180°) with respect to the geomagnetic direction (north facing). However, the direction may also be an "azimuth" expressed as, for example, north, east, west, or south (north facing, south-southwest facing, etc.), and the method of expressing the direction does not matter.

[0011] (1) Overview The map creation system 100 according to the first embodiment includes a storage unit 11, a transmitter 20, a measurement unit 121, and a drawing unit 122, as shown in FIG.

[0012] (1-1) Storage section The memory unit 11 stores map information and attribute information. The map information is information about a map. The map is, for example, a map of an area A1 in which the fixtures 200 are installed, as shown in Figs. 1 and 2. The fixtures 200 are, for example, a desk 201, a sofa 202, etc. The area A1 is the floor surface of the indoor area IS1. The attribute information is information about the attributes of the fixtures 200. The attribute information is, for example, information about the type of the fixtures 200 (such as "desk", "sofa"), the size of the fixtures 200 (such as width and depth), etc. (such as "desk, W1, D1", "sofa, W2, D2": see Fig. 6A).

[0013] (1-2) Geomagnetic sensor As shown in FIG. 1 and FIG. 2, the geomagnetic sensor 30 is attached to the fixture 200 and detects the geomagnetism.

[0014] The geomagnetic sensor 30 in this embodiment is a two-axis geomagnetic sensor that measures two geomagnetic values ​​(X and Y components of the geomagnetic field) in the X direction along the X axis (not shown) and the Y direction along the Y axis (not shown) perpendicular to the X axis. Hereinafter, the Y direction is defined as the orientation of the geomagnetic sensor 30 (dr12, dr22: see FIG. 2).

[0015] The geomagnetic sensor 30 is installed so that the orientation of the fixture 200 (dr11, dr21: see FIG. 2) and the orientation of the geomagnetic sensor 30 (dr12, dr22) satisfy a predetermined condition (e.g., matching each other). Matching each other means being parallel to each other and facing the same direction. However, matching is not limited to perfect matching, and parallel is not limited to perfect parallel. For example, if the angle between the two directions is a predetermined angle or less, they may be considered to be matching. Similarly, if the angle between two straight lines along the two directions is a predetermined angle or less, they may be considered to be parallel. The predetermined angle is, for example, 10 degrees or 5 degrees, but is not limited to this.

[0016] In this embodiment, for example, the geomagnetic sensor 30 for the desk 201 is attached so that the orientation dr12 (the orientation of the Y-axis) of the geomagnetic sensor 30 coincides with the orientation dr11 of the desk 201 (the orientation from the front to the back of the desk 201) as shown in Fig. 2. Also, the geomagnetic sensor 30 for the sofa 202 is attached so that the orientation d21 of the sofa 202 coincides with the orientation d21 of the sofa 202 (the orientation from the backrest side to the front) as shown in Fig. 2.

[0017] However, the orientation of the geomagnetic sensor 30 (dr12, dr22) and the orientation of the fixture 200 (dr11, dr21) do not necessarily have to match, as long as the relationship between the two orientations (for example, the angle between the two orientations) is known.

[0018] The geomagnetic sensor 30 detects, for example, the geomagnetic field in the X and Y directions, and acquires geomagnetic information “(mX, mY)” including a geomagnetic value (mX) in the X direction and a geomagnetic value (mY) in the Y direction.

[0019] For example, when the orientation of the geomagnetic sensor 30 (dr12, dr22) coincides with the geomagnetic direction (northward), the magnitude of the geomagnetic field is "M", the geomagnetic value in the Y direction (mY) is maximum (mY=M), and the geomagnetic value in the X direction (mX) is 0 (mX=0). When the orientation of the geomagnetic sensor 30 (dr12, dr22) is at 45 degrees (facing northeast) with respect to the geomagnetic direction (northward), the geomagnetic value in the Y direction (mY) coincides with the geomagnetic value in the X direction (mX=mY). When the orientation of the geomagnetic sensor 30 (dr12, dr22) is at 90 degrees (facing east) with respect to the geomagnetic direction (northward), the geomagnetic value in the Y direction (mY) is 0 (mY=0), and the geomagnetic value in the X direction (mX) is minimum (mX=-M).

[0020] Based on the above-mentioned relationship between the geomagnetic information “(mX, mY)” and the orientation (dr12, dr22) of the geomagnetic sensor 30, the measurement unit 121 can detect the orientation (dr12, dr22) of the geomagnetic sensor 30 and therefore the orientation (dr11, dr21) of the fixture 200 based on the geomagnetic information “(mX, mY)” acquired by the geomagnetic sensor 30.

[0021] (1-3) Transmitter The transmitter 20 emits a wireless signal. In this embodiment, the transmitter 20 is attached to the fixture 200 together with the geomagnetic sensor 30, and emits a wireless signal including the detection result of the geomagnetic sensor 30, i.e., geomagnetic information “(mX, mY)”.

[0022] The wireless signal may further include a transmitter identifier for identifying the transmitter 20. In this embodiment, the wireless signal is a beacon signal. The beacon signal includes a beacon identifier (hereinafter, may be referred to as a "beacon ID") for identifying the beacon. The transmitter 20 is a beacon transmitter that transmits a beacon signal, and may be referred to as a "transmitter (beacon) 20" or simply as a "beacon" hereinafter.

[0023] (1-4) Receiver 3, the receiver 10 receives a wireless signal transmitted by the transmitter 20. The receiver 10 in this embodiment is a scanner that receives a beacon signal transmitted by a beacon, and may hereinafter be referred to as a "scanner (receiver) 10" or simply as a "scanner."

[0024] (1-5) Measurement section The measurement unit 121 executes a measurement process in response to reception of a wireless signal (beacon signal) by the receiver 10. The measurement process is a process of measuring the position and direction of the transmitter 20 and therefore the fixture 200. The measurement process in this embodiment is a process of measuring the position and direction of the fixture 200 based on the wireless signal received by the receiver 10, and acquiring position information and direction information indicating the measurement results. The position is the position of the fixture 200 in the area A1, and the direction is the direction of the fixture 200 (the direction from the front to the back, or from the front to the front, as seen by a user using the fixture 200: see FIG. 2) relative to the direction of the geomagnetic field (the direction from south to north: hereinafter, sometimes simply referred to as "northward").

[0025] (1-6) Drawing section The drawing unit 122 executes drawing processing. The drawing processing is processing for drawing various images based on various information. The various information is, for example, position information, attribute information, and direction information, and the various images are, for example, furniture images 200i (see FIG. 8).

[0026] The drawing process in this embodiment is a process of drawing a fixture image 200i indicating attributes corresponding to the attribute information at a position corresponding to the location information on a map image Mi1 (see Figure 8) based on map information, in such a way that the direction corresponding to the directional information can be identified.

[0027] The fixture image 200i is an image of the fixture 200. The fixture image 200i is an image that can represent the position, attributes, and direction of the fixture 200. The position of the fixture 200 is, for example, coordinates (x, y) in the area A1. The attributes of the fixture 200 are, for example, the type (desk, sofa, etc.) or size (width, depth, etc.). The direction of the fixture 200 is, for example, the angle (θ) of the orientation (dr11, dr21) of the fixture 200 with respect to the direction of geomagnetic field (northward), or the east-west-north direction (for example, south-southwest-ward or northward).

[0028] The furniture image 200i in this embodiment is a rectangular image having characters or character strings indicating attributes ("desk" or "sofa"), such as a desk image 201i or a sofa image 202i shown in FIG.

[0029] Drawing the furniture image 200i so that the direction can be identified means, for example, drawing an image having characters or characters indicating attributes of the furniture 200, such as the desk image 201i or sofa image 202i shown in FIG.

[0030] Alternatively, drawing the furniture image 200i so that the direction can be identified may be, for example, drawing an image having a characteristic shape that indicates the attributes of the furniture 200, such as a desk image 201i or a sofa image 202i shown in FIG. 11.

[0031] (1-7)Advantages In this way, the map creation system 100 of this embodiment can create a map that allows visual confirmation of the attributes, position, and direction of the fixture 200. Note that the map is a collection of the map image MI1 and various images such as the fixture image 200i related thereto, and may be called, for example, "map-related images." The map may be, for example, an image corresponding to each of the screens in Figs. 7 to 11.

[0032] In addition, since the attribute information includes type information and the fixture image 200i has at least one of the display and shape of characters indicating the type of fixture 200, the map creation system 100 can create a map in which at least the type, position, and direction of the fixture 200 are visible.

[0033] Furthermore, the attribute information further includes size information, and the drawing unit 122 draws the fixture image 200i at a size according to the size information, thereby enabling the map creation system 100 to create a map in which the type, size, position and direction of the fixture 200 can be visually confirmed.

[0034] (2)Details (2-1) Detailed map information: Multiple map information corresponding to multiple scales In the following description, the above-mentioned map information may be one piece of map information selected from a plurality of pieces of map information corresponding to a plurality of scales, for example, the plurality of pieces of map information including first map information corresponding to a first scale and second map information corresponding to a second scale.

[0035] The first scale may be, for example, a large scale with a scale value of "1 / 200", and the first map information may be large-scale map information for a wide area display. The second scale may be, for example, a small scale with a scale value of "1 / 100", and the second map information may be small-scale map information for a detailed display.

[0036] Specifically, the storage unit 11 may store a plurality of map information pieces with different scales. For example, the storage unit 11 may store a plurality of sets of a scale value "1 / 200" and large-scale map information for wide-area display corresponding to the scale value, and a plurality of sets of a scale value "1 / 100" and small-scale map information for detailed display corresponding to the scale value.

[0037] For example, a selection instruction to select one scale from a plurality of scales may be received via the input device 3, and the processing unit 12 may select one piece of map information corresponding to the selected one scale from the plurality of map information, and the drawing unit 122 may draw the fixture image 200i for the selected map information at a size according to the size information and the selected one scale.

[0038] Alternatively, the large-scale map information may be the default map information, and a scale change instruction may be received instead of a selection instruction. For example, the processing unit 12 may select the default large-scale map information in an initial process described below, and then select the small-scale map information when the receiving unit 13 receives a scale change instruction.

[0039] The drawing unit 122 draws the furniture image 200i for the large-scale map information selected in the initial process at a size corresponding to the size information and the large-scale scale value "1 / 200" (a size relatively smaller than when small-scale map information is selected). When small-scale map information is selected in response to a scale change instruction, the drawing unit 122 draws the furniture image 200i for the small-scale map information at a size corresponding to the size information and the small-scale scale value "1 / 100" (a size relatively larger than when large-scale map information is selected).

[0040] This allows the map creation system 100 to create a map on which the fixture images 200i are drawn at a size that corresponds to the size of the actual fixtures 200 and the scale of the selected map. Furthermore, the map creation system 100 can reduce the sense of incongruity felt due to a change in the relative size of the fixture images 200i to the map image when the scale of the map is changed.

[0041] (2-2) Configuration and operation for multiple fixtures In this embodiment, a plurality of fixtures 200 may be installed in area A1, as shown in FIG. 1 and FIG. 2, etc.

[0042] In the following description, the fixture 200 described in the overview may be each of the multiple fixtures 200 installed in area A1. Similarly, in the following description, the attribute information described in the overview may be each of the multiple pieces of attribute information corresponding to the multiple fixtures 200. The storage unit 11 stores each of the multiple pieces of attribute information in association with fixture identification information that identifies the fixture 200.

[0043] In the following description, the position information described in the overview may be each of a plurality of pieces of position information corresponding to a plurality of fixtures 200. Similarly, in the following description, the direction information described in the overview may be each of a plurality of pieces of direction information corresponding to a plurality of fixtures 200.

[0044] In the following description, the geomagnetic sensor 30 described in the overview may be each of the multiple geomagnetic sensors 30 corresponding to the multiple fixtures 200. Similarly, the transmitter 20 described in the overview may be each of the multiple transmitters 20 corresponding to the multiple fixtures 200. Furthermore, in the following description, the wireless signal described in the overview may be each of the multiple wireless signals corresponding to the multiple transmitters 20.

[0045] Each of the plurality of transmitters transmits a wireless signal corresponding to the transmitter together with transmitter identification information corresponding to the transmitter. The storage unit 11 further stores the plurality of transmitter identification information corresponding to the plurality of transmitters 20 in association with the plurality of fixture identification information corresponding to the plurality of fixtures 200, respectively.

[0046] The receiver 10 receives a wireless signal together with the transmitter identification information from each of the multiple transmitters 20. The measurement unit 121 executes a measurement process for each of the multiple transmitter identification information. The storage unit 11 stores the position information and direction information acquired by each of the multiple measurement processes corresponding to the multiple transmitter identification information in association with each of the multiple fixture identification information corresponding to the multiple transmitter identification information.

[0047] The drawing unit 122 draws a plurality of fixture images 200i corresponding to a plurality of fixtures 200 by executing each of a plurality of drawing processes corresponding to the plurality of fixture identification information based on the position information and direction information stored in the memory unit 11 in association with each of the plurality of fixture identification information.

[0048] This allows the map creation system 100 to create a map that enables visual confirmation of the attributes (e.g., type and size), position, and direction of each of the multiple fixtures 200 in the area A1.

[0049] (2-3) Specific configuration example of a map creation system Next, a specific configuration example including the above-mentioned configuration of the map creation system 100 will be described. Note that in the following, the description of the previously mentioned items will be omitted or simplified.

[0050] 1, the map creation system 100 includes a processing device 1, an input device 3, a receiver 10, N (where N is an integer equal to or greater than 2: in the example of FIG. 1, N=2) transmitters 20, and N geomagnetic sensors 30. Note that N here may also be rephrased as a plurality. In other words, in the map creation system 100, the number of transmitters 20 and the number of geomagnetic sensors 30 are basically the same, but they do not necessarily have to be the same.

[0051] (2-3-1) Processing equipment 3, the processing device 1 includes a storage unit 11, a processing unit 12, a receiving unit 13, and an output unit 14. The processing unit 12 includes a measurement unit 121 and a drawing unit 122.

[0052] The processing device 1 receives a wireless signal (beacon signal) received by the receiver 10, and performs measurement processing based on the received wireless signal (beacon signal). The processing device 1 also receives various instructions (such as a map display instruction) via the input device 3, executes processing (such as a drawing process) according to the received instructions, and outputs the execution result (such as a map image Mi1 on which the fixture image 200i is drawn) to the display device 2.

[0053] The processing device 1 is, for example, a server connected to a network such as a LAN (Local Area Network). The server has a processor, a memory, a communication module, etc., and the processor operates based on a program and various information in the memory and cooperates with the communication module, etc., to realize the functions of each unit (storage unit 11, processing unit 12, reception unit 13, output unit 14, measurement unit 121, and drawing unit 122) shown in FIG.

[0054] (2-3-2) Display device The display device 2 displays various images (such as the map image Mi1) output by the processing device 1. The display device 2 is, for example, a display connected to a server, but may also be a built-in display of a terminal such as a smartphone that can be connected to a network.

[0055] (2-3-3) Input device The input device 3 is a device for inputting various types of information and various types of instructions to the processing device 1. The various types of information are, for example, attribute information relating to the attributes of the fixture 200 as shown in FIG. 6A. The various types of instructions are, for example, a map display instruction, a scale change instruction, and a display termination instruction. The map display instruction is an instruction for displaying an area map (described below). The scale change instruction is an instruction for changing the scale of the area map. The display termination instruction is an instruction for terminating the display of the area map.

[0056] The input device 3 is, for example, a keyboard, a mouse, or a touch panel provided on the display surface of a display.

[0057] (2-3-4) Area Map The area map is a map of the area A1. The area A1 is an area in which the fixtures 200 are installed, and is, for example, the floor surface of an indoor IS1 as shown in Fig. 1. The indoor IS1 illustrated in Fig. 1 has a rectangular shape, and the longitudinal direction of the indoor IS1 is parallel to the east-west direction and the lateral direction of the indoor IS1 is parallel to the north-south direction. However, the direction of the indoor IS1 may be changed as appropriate.

[0058] In this embodiment, as shown in Figures 1 and 2, the southwest vertex of area A1 is defined as the origin, with the x-axis running from west to east, the y-axis running from south to north, and the z-axis (not shown) running from bottom to top (vertically upward).

[0059] The area map is, for example, a map image Mi1 on which a furniture image 200i is drawn as shown in Fig. 8, but may be a map image MI1 on which the furniture image 200i is not drawn as shown in Fig. 7. Alternatively, the area map may be a map image Mi1 on which a grid Gr1 and speech bubbles Sb1 to Sb3 are further drawn in addition to the furniture image 200i as shown in Fig. 9.

[0060] (2-3-5) Computer Systems In the example of Figure 1, the processing device 1, display device 2 and input device 3 (these devices may be collectively referred to as a "computer system") are installed in a location separate from the indoor IS1 in which the fixture 200 is installed (e.g., a different floor in the same building, or a different room on the same floor), but they may also be installed in the indoor IS1, and their location is not important.

[0061] (2-3-6) Indoor The indoor IS1 is inside a building, for example, one of multiple floors in the building. However, the indoor IS1 may be, for example, one of multiple rooms in the floor, or one of multiple sections in the room.

[0062] (2-3-7) Fixtures The fixture 200 is furniture or equipment that can be installed in the indoor IS 1. The fixture 200 is a desk 201 or a sofa 202 in the examples of Fig. 1 and Fig. 2, but it may be a shelf or an air purifier, and the type is not limited.

[0063] The desk 201 is placed in a position toward the southeast of the area A1, facing north. The orientation dr11 of the desk 201 is forward as viewed from a user using the desk 201, and faces north in the example of Figs. 1 and 2. A desk light 201A is provided on the top surface of the desk 201 at the rear on the left side facing north (near the northwest corner). The user using the desk 201 is positioned at the front side of the desk 201, opposite the rear side where the desk light 201A is provided.

[0064] The set of the transmitter 20 and the geomagnetic sensor 30 is attached to the left front (near the southwest corner) as seen from the user of the desk 201 thus placed facing north. The orientation dr12 of the geomagnetic sensor 30 is the same as the orientation dr11 of the desk 201, and faces north in the examples of Figures 1 and 2.

[0065] The sofa 202 is installed in a position toward the northwest of the area A1, facing south. The direction dr21 of the sofa 202 is forward as seen from a user using the sofa 202 (specifically, sitting with his / her back facing the backrest at the rear of the sofa 202), and faces south in the examples of FIGS. 1 and 2.

[0066] The set of the transmitter 20 and the geomagnetic sensor 30 is attached to the left front (near the northeast corner) of the sofa 202 thus placed facing south, as seen from the user. The orientation dr22 of the geomagnetic sensor 30 is the same as the orientation dr21 of the sofa 202, and faces south in the examples of Figures 1 and 2.

[0067] (2-3-8) Details of geomagnetic sensor The geomagnetic sensor 30 detects geomagnetism and obtains geomagnetic information indicating the detection result. Geomagnetism is a magnetic field generated by the Earth and directed from the south (S pole) to the north (N pole).

[0068] In this embodiment, the geomagnetic sensor 30 measures the magnetic forces in the X and Y directions to obtain geomagnetic information "(mX, mY)" and executes a position detection process for outputting the obtained geomagnetic information "(mX, mY)" for each of the multiple fixtures 200 corresponding to the multiple geomagnetic sensors 30. This allows multiple pieces of directional information "(mX1, mY1)" and "(mX2, mY2)" corresponding to the multiple fixtures 200 to be obtained.

[0069] (2-3-9) Transmitter details The transmitter 20 is attached to each of the plurality of fixtures 200 and transmits a wireless signal (beacon signal). The transmitter 20 stores transmitter identification information (beacon ID) that identifies the transmitter 20, and transmits a wireless signal (beacon signal) including the stored transmitter identification information (beacon ID).

[0070] The transmitter 20 in this embodiment is paired with the above-mentioned geomagnetic sensor 30 and attached to the fixture 200. The wireless signal (beacon signal) in this embodiment further includes the detection results of the geomagnetic sensor 30, that is, geomagnetic information "(mX1, mY1)" and "(mX2, mY2)" and the like, in addition to the transmitter identification information (beacon ID) "b1" and "b2" and the like.

[0071] (2-3-10) Receiver details The receiver 10 is provided at a predetermined position (for example, the center of the ceiling) in the indoor IS1, and receives wireless signals (beacon signals) transmitted by transmitters 20 attached to each of the multiple fixtures 200. Note that, as will be described in detail later, the predetermined position is known, and receiver position information indicating the predetermined position is stored in the memory unit 11 of the processing device 1.

[0072] The receiver 10 in this embodiment has, for example, multiple antennas each receiving a wireless signal from the transmitter 20, and outputs RSSI information including multiple Received Signal Strength Indicator (RSSI) values ​​corresponding to the multiple antennas to the processing device 1.

[0073] (2-3-11) Details of the memory unit The storage unit 11 stores receiver position information indicating the above-mentioned predetermined position, that is, the position where the receiver 10 is installed. The receiver position information is, for example, three-dimensional coordinates (x0, y0, z0). The receiver position information may include multiple antenna position information corresponding to multiple antennas.

[0074] (2-3-11a) Attribute-related information The storage unit 11 further stores attribute-related information. The attribute-related information is information related to the attributes of the fixture 200. For example, as shown in Fig. 6A, the attribute-related information includes fixture identification information (furniture ID) for identifying the fixture 200, attribute information, and transmitter identification information (beacon ID). The attribute information includes type information and size information.

[0075] The size information constituting the attribute-related information is information indicating the relative size with respect to the map image Mi1, and is composed of two numerical values ​​(e.g., "(1.2, 0.6)", "(2.0, 0.8)", etc.) indicating the width D and depth W of the fixture image 200i when, for example, the length (width) of the map image Mi1 in the east-west direction is "8" and the length (depth) in the north-south direction is "4".

[0076] In the example of Fig. 6A, the storage unit 11 stores three or more pieces of attribute-related information. Of the three or more pieces of attribute-related information, the first piece of attribute-related information includes a fixture ID "f1", attribute information "desk, (1.2, 0.6)", and a beacon ID "b1". The second piece of attribute-related information includes a fixture ID "f2", attribute information "sofa, (2.0, 0.8)", and a beacon ID "b2". The third piece of attribute-related information includes a fixture ID "f3", attribute information "desk, (1.2, 0.6)", and a beacon ID "b3".

[0077] (2-3-11b) Measurement information Furthermore, the storage unit 11 may store measurement information related to the measurement results of the measurement unit 121. The measurement information includes, for example, RSSI information, geomagnetic information, position information, and direction information, as shown in FIG 6B.

[0078] The RSSI information is information related to the RSSI of a wireless signal from the transmitter 20 attached to the fixture 200. The RSSI information is, for example, a plurality of values ​​"RSSI11" and "RSSI12" indicating the RSSI of a wireless signal from the transmitter 20 attached to the desk 201 in time series, and a plurality of values ​​"RSSI21" and "RSSI22" indicating the RSSI of a wireless signal from the transmitter 20 attached to the sofa 202 in time series.

[0079] The geomagnetic information is information indicating the detection result of the geomagnetic sensor 30 attached to the fixture 200. The geomagnetic information is, for example, information such as "(mX11, mY11)" indicating two measurement values ​​"mX11" and "mY11" in the X direction and Y direction of the geomagnetic sensor 30 attached to the desk 201.

[0080] The position information is information indicating the position of the fixture 200 in the area A1. The position information is, for example, information such as "(x11, y11)" and "(x12, y12)" that indicates the two-dimensional coordinates of the desk 201 in chronological order.

[0081] The directional information is information indicating the direction of the fixture 200 in the area A1. The directional information is, for example, information such as "θ11" and "θ12" that chronologically indicates the angle θ of the orientation d11 of the desk 201 with respect to the north.

[0082] The storage unit 11 in this embodiment can store a plurality of pieces of measurement information in chronological order in association with each of N pieces of fixture identification information (furniture IDs) (N=3 in the example of FIG. 6B) as shown in Fig. 6B. In addition, the storage unit 11 can further store a representative value group corresponding to the plurality of pieces of measurement information in association with each of N pieces of fixture identification information (furniture IDs) as shown in Fig. 6B.

[0083] A representative value group is a collection of multiple representative values, and a representative value is a value that represents multiple pieces of information. The representative value group includes a position representative value that represents multiple pieces of position information, and a direction representative value that represents multiple pieces of direction information. The position representative value is, for example, the average value of multiple pieces of position information corresponding to desk 201, but may also be the median value of the multiple pieces of position information. The direction representative value is, for example, the average value of multiple pieces of direction information, but may also be the median value of the multiple pieces of direction information.

[0084] In the example of FIG. 6B, the storage unit 11 stores two or more pieces of measurement information in association with the fixture ID "f1". Of the two or more pieces of measurement information corresponding to the fixture ID "f1", the first piece includes RSSI information "RSSI11", geomagnetic information "(mx11, my11)", position information "(x11, y11)", and direction information "θ11". The second piece includes RSSI information "RSSI12", geomagnetic information "(mx12, my12)", position information "(x12, y12)", and direction information "θ12". The storage unit 11 further stores a representative value group "(2.5, 2, -90)" including a position representative value "(2.5, 2)" and a direction representative value "-90" in association with the fixture ID "f1".

[0085] In the example of FIG. 6B, the storage unit 11 stores two or more pieces of measurement information in association with the fixture ID "f2". Of the two or more pieces of measurement information corresponding to the fixture ID "f2", the first piece of measurement information includes RSSI information "RSSI21", geomagnetic information "(mx21, my21)", position information "(x21, y21)", and direction information "θ21". The second piece of measurement information includes RSSI information "RSSI22", geomagnetic information "(mx22, my22)", position information "(x22, y22)", and direction information "θ22". The storage unit 11 further stores a representative value group "(2,0,0)" including a position representative value "(2,0)" and a direction representative value "0" in association with the fixture ID "f2".

[0086] Further, in the example of FIG. 6B, the storage unit 11 stores two or more pieces of measurement information in association with the fixture ID "f3". Of the two or more pieces of measurement information corresponding to the fixture ID "f3", the first piece of measurement information includes RSSI information "RSSI31", geomagnetic information "(mx31, my31)", position information "(x31, y31)", and direction information "θ31". The second piece of measurement information includes RSSI information "RSSI32", geomagnetic information "(mx32, my32)", position information "(x32, y32)", and direction information "θ32". The storage unit 11 further stores a representative value group "(6.5, 3, -150)" including a position representative value "(6.5, 3)" and a direction representative value "-150" in association with the fixture ID "f3".

[0087] (2-3-12) Processing section The processing unit 12 performs various types of processing. The various types of processing include, for example, processing by a measurement unit 121 (measurement processing) and processing by a drawing unit 122 (drawing processing). The processing unit 12 also has a frame memory corresponding to one screen displayed by the display device 2, and also reads a map image from the storage unit 11 into the frame memory, and outputs the map image read into the frame memory to the display device 2. The processing unit 12 also performs various types of judgments that will be explained in the flowcharts of Figs. 4 and 5.

[0088] (2-3-12a) Details of the measurement section The measurement unit 121 performs measurement processing. The measurement processing is processing for measuring the position and direction of a measurement target and acquiring position information and direction information. The measurement target is a transmitter 20 or a fixture 200. The position is the position (two-dimensional position) of the measurement target in area A1, and the direction is the direction of the measurement target relative to the direction of the geomagnetic field, i.e., north. The position information is two-dimensional coordinates (x, y). The direction information is directional information "θ" indicating the direction.

[0089] The measurement process includes a position detection process in which, for a pair of fixture identification information (fixture ID) and transmitter identification information (beacon ID), the position of the fixture 200 in area A1 is measured based on RSSI information and receiver position information, and position information “(x, y)” is obtained.

[0090] The position detection process in this embodiment is a process of measuring the position of the fixture 200 in area A1 based on multiple RSSI values ​​contained in the RSSI information output from the receiver 10 and multiple antenna position information contained in the receiver position information stored in the memory unit 11, and acquiring position information “(x, y)”.

[0091] The measurement unit 121 executes the above-described position detection process for each of the plurality of pieces of furniture 200. As a result, for example, position information “(x1, y1)” corresponding to the desk 201 and position information “(x2, y2)” corresponding to the sofa 202 are acquired.

[0092] Preferably, the measurement unit 121 repeatedly executes the position detection process for each of the plurality of fixtures 200 corresponding to the plurality of transmitters 20. As a result, for example, a plurality of pieces of position information such as "(x11, y11)" and "(x12, y12)" corresponding to the desk 201 and a plurality of pieces of position information such as "(x21, y21)" and "(x22, y22)" corresponding to the sofa 202 are sequentially acquired.

[0093] The measurement process also includes a direction detection process for measuring the direction of the fixture 200 based on the geomagnetic information acquired by the geomagnetic sensor 30 and acquiring direction information "θ" for a set of fixture identification information (fixture ID) and transmitter identification information (beacon ID). Here, the angle θ is a value that satisfies "-180°<θ≦180°" as described above, and specifically, is -150°, 0°, -90° (see FIG. 9), etc.

[0094] The direction detection process in this embodiment is a process of measuring the angle θ of the fixture 200 relative to the geomagnetic direction (north direction) based on the geomagnetic information contained in the radio signal (beacon signal) received by the receiver 10, and acquiring the direction information “θ”.

[0095] The measurement unit 121 executes the above-described direction detection process for each of the plurality of pieces of furniture 200. As a result, for example, direction information “θ1” corresponding to the desk 201 and direction information “θ2” corresponding to the sofa 202 are acquired.

[0096] Preferably, the measurement unit 121 repeatedly executes the direction detection process for each of the plurality of pieces of furniture 200. As a result, for example, a plurality of pieces of direction information "θ11" and "θ12" corresponding to the desk 201, and a plurality of pieces of direction information "θ21" and "θ22" corresponding to the sofa 202, etc. are sequentially acquired.

[0097] The above-mentioned storage unit 11 stores a plurality of pieces of measurement information, which are the measurement results of the measurement process thus repeatedly executed, in association with each of a plurality of fixture IDs, as shown in FIG. 6B.

[0098] (2-3-12b) Details of the drawing section The drawing unit 122 executes drawing processing for each of the plurality of fixtures 200. As a result, for example, a plurality of fixture images 200i are drawn on the map image Mi1 in the frame memory of the processing unit 12, and a screen such as that shown in FIG.

[0099] Furthermore, the drawing unit 122 changes the furniture size and updates the attribute table in response to the scale change instruction. Changing the furniture size is a process of changing the value of the size information registered in the attribute table (see FIG. 6A) to a value corresponding to the changed scale. Updating the attribute table is a process of updating the value of the size information registered in the attribute table (see FIG. 6A) to the changed value. As a result, for example, the screen of FIG. 8 displayed on the display device 2 is updated to the screen of FIG. 10.

[0100] (2-3-13) Reception The reception unit 13 receives various instructions such as a map display instruction, and various information such as attribute information, via the input device 3. The reception unit 13 also receives various information input from the receiver 10, that is, transmitter identification information (beacon ID), geomagnetic information, RSSI information, and the like.

[0101] The reception unit 13 may receive at least one of various instructions and various information via a device other than the input device 3 and the receiver 10. This type of reception is, for example, reception of information read by a storage device from a storage medium.

[0102] (2-3-14) Output section The output unit 14 outputs various images, such as the map image Mi1 on which the fixture image 200i is drawn, to the display device 2. The output unit 14 may also output various information, such as attribute information, to the display device 2. Furthermore, the output unit 14 may output at least one of the various images and the various information to a device other than the display device 2 (for example, a printer or a storage device).

[0103] (3) Example of operation The map creation system 100 operates, for example, according to the flowcharts of Figures 4 and 5. The processing of Figures 4 and 5 is started when the map creation system 100 is started, and is ended when the operation is stopped.

[0104] When the map creation system 100 is started, first, the processing unit 12 performs an initial process (step S1). In the initial process, for example, the attribute information and the like are received via the input device 3, and the received attribute information and the like are stored via the storage unit 11, as necessary.

[0105] Next, the processing unit 12 determines whether the receiver 10 has received a wireless signal (beacon signal) (step S2). If it is determined that the receiver 10 has not received a wireless signal (beacon signal) (No in step S2), the process proceeds to step S4.

[0106] If it is determined in step S2 that the receiver 10 has received a wireless signal (beacon signal) (Yes), the measurement unit 121 executes a measurement process in cooperation with the receiver 10 (step S3). The measurement process will be described with reference to Fig. 5. After that, the process proceeds to step S4.

[0107] In step S4, the processing unit 12 determines whether or not a map display instruction has been received by the reception unit 13. If it is determined that the reception unit 13 has not received a map display instruction (No in step S4), the processing proceeds to step S8.

[0108] If it is determined in step S4 that the reception unit 13 has received the map display instruction (Yes), the processing unit 12 loads the map image from the storage unit 11 into the frame memory, and outputs the map image loaded into the frame memory to the display device 2 (step S5). As a result, the display device 2 displays a screen including a map image Mi1 and a direction image Di1 indicating the direction (north, south, east, and west) in the map image Mi1, as shown in Fig. 7, for example.

[0109] Next, the drawing unit 122 performs fixture drawing, i.e., drawing the fixture image 200i onto the map image Mi1 in the frame memory, based on the position / orientation table (see FIG. 6A) and the attribute table (see FIG. 6B) stored in the memory unit 11 (step S6).

[0110] Next, the output unit 14 outputs the map image Mi1 on which the furniture image 200i is drawn from the frame memory to the display device 2 (step S7). As a result, the display device 2 displays a screen including the map image Mi1 on which the three furniture images 200i are drawn and a direction image Di1, as shown in Fig. 8. The three furniture images 200i are, specifically, a desk image 201i corresponding to a desk 201 placed facing south-southwest, a sofa image 202i corresponding to a sofa 202 placed facing north, and another desk image 201i corresponding to another desk 201 placed facing west.

[0111] 8, an image (font) of the character "desk" is drawn on each of the desk image 201i and another desk image 201i. An image (font string) of the character string "sofa" is drawn on the sofa image 202i.

[0112] In the desk image 201i, the image of the character "desk" is drawn in an orientation such that the orientation from bottom to top of the character "desk" matches the orientation d11 (see FIG. 2) of the desk 201. Therefore, the orientation from bottom to top of the image of the character "desk" indicates the orientation of the desk image 201i. Furthermore, by comparing the orientation of such desk image 201i with the orientation image Di1, it is found that the orientation dr11 of the desk 201 corresponding to the desk image 201i is facing south-southeast, in other words, that the desk 201 is placed facing south-southeast.

[0113] Similarly, by comparing the orientation of the image of the character "desk" in another desk image 201i with the orientation image Di1, it is found that another desk 201 corresponding to the another desk image 201i is placed facing west.

[0114] In the sofa image 202i, the image of the character string "sofa" is drawn in an orientation such that the orientation of the character string "sofa" from bottom to top matches the orientation d21 (see FIG. 2) of the sofa 202. Therefore, the orientation of the character string "sofa" from bottom to top indicates the orientation of the sofa image 202i. Furthermore, by comparing the orientation of such sofa image 202i with the orientation image Di1, it is found that the orientation dr21 of the sofa 202 corresponding to the sofa image 202i faces north, in other words, the desk 201 is placed facing north.

[0115] Next, the processing unit 12 judges whether or not the receiving unit 13 has received a scale change instruction (step S8). If it is judged that the receiving unit 13 has not received a scale change instruction (No in step S8), the processing proceeds to step S10.

[0116] If it is determined in step S8 that the reception unit 13 has received the scale change instruction (Yes), the drawing unit 122 changes the furniture size and updates the attribute table (step S9). After that, the process returns to step S5. As a result, the display device 2 displays a screen including a map image MI1 corresponding to the changed scale, furniture image 200i drawn at a size according to the changed scale, and a direction image Di1, as shown in FIG. 10, instead of the screen in FIG. 8.

[0117] If it is determined in step S8 that the reception unit 13 has not received a scale change instruction (No), the processing unit 12 determines whether or not the reception unit 13 has received a display end instruction (step S10). If it is determined that the reception unit 13 has not received a display end instruction (No in step S10), the processing returns to step S8.

[0118] If it is determined in step S10 that the reception unit 13 has received the display end instruction (Yes), the process returns to step S2.

[0119] The measurement process in step S3 above is executed according to the flowchart of FIG.

[0120] First, the receiver 10 measures the RSSI of the wireless signal (beacon signal) received in step S2, and acquires RSSI information (step S31).

[0121] Next, the receiver 10 extracts the transmitter identification information (beacon ID) and geomagnetic information from the received wireless signal (beacon signal), and outputs the extracted transmitter identification information (beacon ID) and geomagnetic information, as well as the RSSI information acquired in step S31, to the processing device 1 (step S32).

[0122] Next, in the processing device 1, the reception unit 13 receives the transmitter identification information (beacon ID), RSSI information and geomagnetic information output from the receiver 10 in step S32, and the memory unit 11 stores (registers in the position direction table: see Figure 6B) the RSSI information and geomagnetic information in correspondence with the fixture identification information (furniture ID) linked to the transmitter identification information (beacon ID) (step S33).

[0123] Next, the measurement unit 121 acquires location information by performing a location detection process based on the RSSI information stored in step S33, and the memory unit 11 adds the acquired location information (further registers it in the location / direction table) (step S34).

[0124] Next, the measurement unit 121 acquires direction information by performing direction detection processing based on the geomagnetic information stored in step S33, and the memory unit 11 adds the acquired direction information to the position direction table (step S35: see Figure 6B).

[0125] Next, for each of the plurality of pieces of fixture identification information (plurality of fixture IDs), the measurement unit 121 calculates a moving average of the plurality of pieces of position information linked to the fixture identification information (plurality of fixture IDs) and a moving average of the plurality of pieces of direction information linked to the fixture identification information (plurality of fixture IDs) to obtain a representative value group including a representative value of the plurality of pieces of position information and a representative value of the plurality of pieces of direction information, and the storage unit 11 adds the obtained representative value group to the position / direction table (step S36: see FIG. 6B). After that, the process returns to the upper-level flowchart (see FIG. 4).

[0126] (4) Variations (4-1) First modified example of map image In step S7 of Fig. 4, the display device 2 may display a screen shown in Fig. 9 instead of the screen of Fig. 8. In detail, the drawing unit 122 may further draw a grid Gr1 on the map image Mi1, and may further draw a speech bubble Sb in association with the fixture image 200i already drawn on the map image Mi1. The speech bubble Sb includes an image of a character string indicating attribute information (e.g., coordinates and a rotation angle) of the fixture 200 corresponding to the fixture image 200i.

[0127] For example, when three furniture images 200i (specifically, a desk image 201i corresponding to a desk 201 placed facing south-southwest, a sofa image 202i corresponding to a sofa 202 placed facing north, and another desk image 201i corresponding to another desk 201 placed facing west) are drawn on a map image Mi1 as shown in FIG. 8, three speech bubbles Sb1 to Sb3 are further drawn in association with the three furniture images 200i as shown in FIG. 9.

[0128] In the speech bubble Sb1 corresponding to the desk image 201i, an image of the character string "Coordinates: (6.5, 3) Rotation angle: -150°" indicating the attribute information of the desk 201 is drawn. In the speech bubble Sb2 corresponding to the sofa image 202i, an image of the character string "Coordinates: (2, 0) Rotation angle: 0°" indicating the attribute information of the sofa 202 is drawn. In the speech bubble Sb3 corresponding to another desk image 201i, an image of the character string "Coordinates: (2.5, 2) Rotation angle: -90°" indicating the attribute information of another desk 201 is drawn.

[0129] As a result, the display device 2 displays a screen shown in Fig. 9 instead of the screen in Fig. 8. The screen in Fig. 9 further includes a grid Gr1 drawn on the map image Mi1 in the screen in Fig. 8, and the three speech bubbles Sb1 to Sb3 as described above drawn in association with the three fixture images 200i. good.

[0130] (4-2) Second modified example of map image Alternatively, in step S7 of Fig. 4, the display device 2 may display a screen shown in Fig. 11 instead of the screen in Fig. 8. In detail, the drawing unit 122 may draw a fixture image 200i having a characteristic image of a characteristic shape indicating the type of fixture 200 as shown in Fig. 11 on the map image MI1 instead of the fixture image 200i including an image (font) of a character such as "desk" or a character string such as "sofa" indicating the type of fixture 200 as shown in Fig. 8.

[0131] The characteristic shape is, for example, the shape of a desk lamp 201A provided on the left side at the back of a desk 201 as shown in Fig. 2. The characteristic image of the shape of the desk lamp 201A is, for example, a desk lamp image 201Ai as shown in Fig. 11.

[0132] Alternatively, the characteristic shape may be, for example, a shape along the backrest and the left and right armrests extending from the left and right ends of the backrest to the front as seen from the back of the sofa 202 (hereinafter, such a shape may be referred to as a "U-shape") as shown in Fig. 2. The characteristic image of the U-shape is, for example, a U-shaped image (hereinafter, may be referred to as a "U-shaped image 202Ai") corresponding to the backrest and the left and right armrests of the sofa 202 as shown in Fig. 11.

[0133] For example, when three furniture images 200i (specifically, a desk image 201i corresponding to a desk 201 placed facing south-southwest, a sofa image 202i corresponding to a sofa 202 placed facing north, and another desk image 201i corresponding to another desk 201 placed facing west) are drawn on the map image Mi1 as shown in FIG. 8, characteristic images of each of the three furniture images 200i are further drawn at specific positions of each of the three furniture images 200i as shown in FIG. 11.

[0134] 11, a desk light image 201Ai is drawn on a desk image 201i corresponding to a desk 201 placed facing south-southwest at a position corresponding to the rear left corner (i.e., the southeast corner) as viewed by a user using the desk 201. Similarly, a desk light image 201Ai is drawn on another desk image 201i corresponding to another desk 201 placed facing west at a position corresponding to the rear left corner (i.e., the southwest corner) as viewed by a user using the other desk 201.

[0135] Also, as shown in FIG. 11, a U-shaped image 202Ai is drawn on a sofa image 202i corresponding to a sofa 202 placed facing north at positions corresponding to the back and left and right (i.e., the south, east, and west sides) as viewed from a user using the sofa 202.

[0136] (4-3) Modification of measurement process execution timing The measurement unit 121 may execute the measurement process for each of the plurality of fixtures 200 in a one-off manner (for example, only once in response to the map display instruction in step S4).

[0137] (4-4) Modified geomagnetic sensor The geomagnetic sensor 30 may be, for example, a three-axis geomagnetic sensor that further includes a Z-axis perpendicular to each of the X-axis and Y-axis in addition to the X-axis and Y-axis.

[0138] (4-5) Modifications of the number of pairs of transmitters 20 and geomagnetic sensors 30 The map creation system 100 may include only one pair of the transmitter 20 and the geomagnetic sensor 30.

[0139] (4-6) Modification of the means for realizing the position detection function Instead of the receiver 10 having multiple antennas, the indoor IS1 may be provided with, for example, multiple receivers 10 each having a single antenna. Alternatively, the receiver 10 may be, for example, a radio wave sensor that detects the position of the fixture 200 based on the reflected wave of a radio wave radiated from an antenna provided at a predetermined position.

[0140] (4-7) Modification of memory location In the embodiment, the processing device 1 includes the storage unit 11, but in a modified example, the storage unit 11 may be included in a device (for example, an external server such as a cloud server) other than the processing device 1. The storage unit 11 may be located anywhere as long as it is accessible by the processor of the processing device 1.

[0141] (4-8) Modifications of fixture images However, the furniture image 200i may be an image such as an icon (the icon of the desk 201 or the icon of the sofa 202) having a characteristic shape indicating an attribute, such as the desk image 201i or sofa image 202i shown in Fig. 11. In this case, the direction of the furniture 200 (the direction d11 of the desk 201 or the direction d21 of the sofa 202) is indicated by the arrangement of the characteristic shape (the shape of the desk lamp image 201Ai or the shape of the U-shaped image 202Ai) within the icon.

[0142] (5) Summary The map creation system (100) according to the first aspect includes a memory unit (11), a geomagnetic sensor (30), a transmitter (20), a receiver (10), a measurement unit (121), and a drawing unit (122). The memory unit (11) stores map information related to a map of an area (A1) in which a fixture (200) is installed, and attribute information related to attributes of the fixture (200). The geomagnetic sensor (30) is attached to the fixture (200) and detects geomagnetism. The transmitter (20) is attached to the fixture (200) and transmits a wireless signal including a detection result of the geomagnetic sensor (30). The receiver (10) receives the wireless signal transmitted by the transmitter (20). The measurement unit (121) executes a measurement process. The measurement process is a process of measuring the position and direction of the fixture (200) based on the wireless signal received by the receiver (10) and acquiring position information and direction information indicating the measurement result. The drawing unit (122) executes the drawing process. The drawing process is a process of drawing a fixture image (200i) indicating an attribute corresponding to the attribute information on a map image (Mi1) based on map information at a position corresponding to the position information, in such a way that the direction corresponding to the direction information can be identified.

[0143] According to this embodiment, the map creation system (100) can create a map in which the attributes, location, and orientation of the fixtures (200) are visible.

[0144] In the map creation system (100) according to the second aspect, in the first aspect, the attribute information includes type information indicating the type of the fixture (200). The fixture image (200i) is an image having at least one of a character display and a shape indicating the type of the fixture (200), and the direction of the fixture is indicated by at least one of the character and the shape.

[0145] According to this embodiment, the map creation system (100) can create a map in which the type, location, and orientation of the fixtures (200) are visible.

[0146] In the map creation system (100) according to the third aspect, in the second aspect, the attribute information further includes size information indicating a size of the fixture (200). The drawing unit (122) draws the fixture image (200i) at a size according to the size information.

[0147] According to this aspect, the map creation system (100) can create a map that allows visual confirmation of the type, size, position, and direction of the fixture (200). Furthermore, the map creation system (100) can create a map on which the fixture image (200i) is drawn in a size corresponding to the size of the actual fixture (200), thereby reducing the sense of incongruity felt due to the difference between the size of the actual fixture (200) and the size of the fixture image (200i).

[0148] In the map creation system (100) according to the fourth aspect, in the third aspect, the map information is map information selected from a plurality of pieces of map information corresponding to a plurality of scales. The drawing unit (122) draws the furniture image (200i) at a size according to the size information and the scale corresponding to the selected map information.

[0149] According to this aspect, the map creation system (100) can create a map on which the furniture image (200i) is drawn at a size corresponding to the size of the actual furniture (200) and the scale of the selected map. Furthermore, the map creation system (100) can reduce the sense of incongruity felt due to a change in the relative size of the furniture image (200i) with respect to the map image when the scale of the map is changed.

[0150] In the map creation system (100) according to the fifth aspect, in any one of the first to fourth aspects, the fixture (200) is each of a plurality of fixtures (200) installed in the area (A1). The attribute information is each of a plurality of attribute information corresponding to the plurality of fixtures. The storage unit (11) stores each of the plurality of attribute information in association with fixture identification information for identifying the fixture (200). The position information is each of a plurality of position information corresponding to the plurality of fixtures (200). The directional information is each of a plurality of directional information corresponding to the plurality of fixtures (200). The geomagnetic sensor (30) is each of a plurality of geomagnetic sensors (30) corresponding to the plurality of fixtures (200). The transmitter (20) is each of a plurality of transmitters (20) corresponding to the plurality of fixtures (200). The wireless signal is each of a plurality of wireless signals corresponding to the plurality of transmitters. Each of the multiple transmitters transmits a wireless signal corresponding to the transmitter (20) from the multiple wireless signals together with transmitter identification information corresponding to the transmitter (20). The memory unit (11) further stores the multiple transmitter identification information corresponding to the multiple transmitters (20) in association with multiple fixture identification information corresponding to the multiple fixtures (200), respectively. The receiver (10) receives the wireless signal from each of the multiple transmitters (20) together with the transmitter identification information. The measurement unit (121) executes a measurement process for each of the multiple transmitter identification information. The memory unit (11) stores the position information and direction information acquired by each of the multiple measurement processes corresponding to the multiple transmitter identification information in association with each of the multiple fixture identification information corresponding to the multiple transmitter identification information. The drawing unit (122) draws a plurality of fixture images (200i) corresponding to the plurality of fixtures (200) by executing each of a plurality of drawing processes corresponding to the plurality of fixture identification information based on the position information and direction information stored in the memory unit (11) in association with each of the plurality of fixture identification information.

[0151] According to this embodiment, the map creation system (100) can create a map that allows visual confirmation of the attributes, position, and direction of each of a plurality of fixtures (200) in the area (A1).

[0152] In the processing device (1) according to the sixth aspect, map information on a map of an area in which a fixture (200) is installed and attribute information on attributes of the fixture (200) are stored in a storage unit (11), a geomagnetic sensor (30) attached to the fixture (200) detects geomagnetism, a transmitter (20) attached to the fixture (200) transmits a radio signal including the detection result of the geomagnetic sensor (30), and the radio signal transmitted by the transmitter (20) is received by a receiver (10). The processing device (1) includes a measurement unit (121) and a drawing unit (122). The measurement unit (121) executes a measurement process. The measurement process is a process of measuring the position and direction of the fixture (200) based on the radio signal received by the receiver (10) and acquiring position information and direction information indicating the measurement result. The drawing unit (122) executes the drawing process. The drawing process is a process of drawing a fixture image (200i) indicating attributes corresponding to the attribute information at a position corresponding to the location information on a map image (Mi1) based on map information, so that the direction corresponding to the direction information can be identified.

[0153] According to this embodiment, the processing device (1) can create a map that allows visual confirmation of the attributes, position, and orientation of the fixtures (200). [Explanation of symbols]

[0154] 100 Map Creation System 11 Storage section 121 Measurement section 122 Drawing section 10 Scanner (Receiver) 20 Beacon (transmitter) 30 Geomagnetic Sensor 200 Fixtures A1 Area Mi1 map image 200i fixture images

Claims

1. A storage unit that stores map information on a map of an area in which the fixtures are installed and attribute information on attributes of the fixtures; A geomagnetic sensor attached to the fixture and configured to detect geomagnetism; A transmitter attached to the fixture and configured to transmit a wireless signal including a detection result of the geomagnetic sensor; a receiver for receiving the radio signal transmitted by the transmitter; A measurement unit that executes a measurement process of measuring the position and direction of the fixture based on the wireless signal received by the receiver and acquiring position information and direction information indicating the measurement result; a drawing unit that executes a drawing process of drawing a fixture image showing an attribute corresponding to the attribute information at a position corresponding to the position information on a map image based on the map information in such a manner that a direction corresponding to the direction information can be identified; Map creation system.

2. The attribute information includes type information indicating the type of the fixture, The fixture image is an image having at least one of a character display and a shape indicating the type of the fixture, The direction of the fixture is indicated by at least one of the characters and the shape; The map generating system of claim 1 .

3. The attribute information further includes size information indicating the size of the fixture, The drawing unit draws the fixture image at a size according to the size information. The map generating system of claim 2 .

4. the map information is selected from a plurality of pieces of map information corresponding to a plurality of scales; The drawing unit draws the furniture image at a size according to the size information and a scale corresponding to the selected map information. The map generating system of claim 3.

5. The fixtures are each of a plurality of fixtures installed in the area, The attribute information is each of a plurality of pieces of attribute information corresponding to the plurality of fixtures, The storage unit stores each of the plurality of pieces of attribute information in association with fixture identification information that identifies the fixture, The location information is each of a plurality of location information corresponding to the plurality of fixtures, The direction information is each of a plurality of direction information corresponding to the plurality of fixtures, The geomagnetic sensor is a plurality of geomagnetic sensors corresponding to the plurality of fixtures, The transmitter is each of a plurality of transmitters corresponding to the plurality of fixtures, the wireless signal is each of a plurality of wireless signals corresponding to the plurality of transmitters, Each of the plurality of transmitters transmits a radio signal corresponding to the transmitter among the plurality of radio signals together with transmitter identification information corresponding to the transmitter; The storage unit further stores a plurality of transmitter identification information corresponding to the plurality of transmitters in association with a plurality of fixture identification information corresponding to the plurality of fixtures, The receiver receives the wireless signal together with the transmitter identification information from each of the plurality of transmitters; The measurement unit executes the measurement process for each of the plurality of pieces of transmitter identification information, The storage unit stores the position information and the direction information acquired by each of the plurality of measurement processes corresponding to the plurality of transmitter identification information in association with each of the plurality of fixture identification information corresponding to the plurality of transmitter identification information; The drawing unit draws a plurality of the furniture images corresponding to the plurality of furniture by executing each of the plurality of drawing processes corresponding to the plurality of furniture identification information based on the position information and the direction information stored in the storage unit in association with each of the plurality of furniture identification information. A map creation system according to any one of claims 1 to 4.

6. Map information on a map of an area in which the fixtures are installed and attribute information on attributes of the fixtures are stored in a storage unit, A geomagnetic field is detected by a geomagnetic sensor attached to the fixture, A transmitter attached to the fixture transmits a radio signal including the detection result of the geomagnetic sensor, The radio signal transmitted by the transmitter is received by a receiver, A measurement unit that executes a measurement process of measuring the position and direction of the fixture based on the wireless signal received by the receiver and acquiring position information and direction information indicating the measurement result; a drawing unit that executes a drawing process of drawing a fixture image showing an attribute corresponding to the attribute information at a position corresponding to the position information on a map image based on the map information in such a manner that a direction corresponding to the direction information can be identified; Processing unit.

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