JP2011175447A - Apparatus, method and program for generating three-dimensional position information - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To shorten labor and time for generating three-dimensional position information and to generate three-dimensional position information having no relation with environments around a building when relating information concerned with an object existing in a desired floor of the building to the three-dimensional position information of the floor. <P>SOLUTION: Address information of an object existing in the building is acquired (step S11), and the latitude information and longitude information of the building are acquired from building address information included in the address information (step S12). Elevation information of a position on which the building exists is acquired from the latitude information and longitude information (step S13). Height information of a floor on which the object is located is acquired based on number-of-floors information and height information per floor in the address information of the object (step S14). The elevation information of the object is calculated by adding the elevation information of the building to the height information of the floor (step S15). <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to an apparatus, a method, and a program for generating three-dimensional position information of a desired floor of a building. More specifically, the present invention exists at a position corresponding to the position and orientation of the mobile terminal device according to the position and orientation of the mobile terminal device. The present invention relates to a three-dimensional position information generation apparatus, method, and program suitable for use in a system that provides information related to a store in a building to the mobile terminal device.

  Such a system includes a camera-equipped mobile terminal device such as a camera-equipped mobile phone and a server capable of communicating with the camera-equipped mobile terminal device via a communication network. The position information and the orientation information are transmitted to the server, and the server transmits information on the store in the building existing at the position corresponding to the received position information and the orientation information to the camera-equipped portable terminal device. There is a system that realizes augmented reality by adding received information to an image of a building being photographed and displaying it on a display (see Patent Document 1).

  In this system, in the server database, information related to objects (objects) such as stores in the building corresponds to the three-dimensional position information (latitude information, longitude information, altitude information) of the floor where the object exists. The server receives the location information and the orientation information transmitted from the mobile terminal device, identifies the building existing at the location corresponding to the information, and the object existing in the building. Information about the object is retrieved from the database and transmitted to the mobile terminal device. On the display of the mobile terminal device, information on the object existing in the building being photographed is displayed so that the floor on which the object exists can be identified.

  Here, in order to generate the three-dimensional position information of the floor on which the object exists, the system described in Patent Document 1 uses the three-dimensional position (latitude, longitude, altitude) of the mobile terminal device as a GPS receiver or the like. Then, the direction of the desired floor of the building with respect to the three-dimensional position is measured by a direction sensor (geomagnetic sensor or acceleration sensor), and the distance to the floor is measured by reflection of ultrasonic waves or laser light. The three-dimensional position information of the floor on which the object is present is generated by measuring using a method such as “0068” to “0070” in Patent Document 1.

  In this way, by generating the three-dimensional position information of the desired floor of the building by determining the three-dimensional position of the portable terminal device as the reference position and obtaining the orientation and distance of the desired floor of the building with respect to the reference position, Without actually entering the floor of the building, it is possible to associate information about the objects present on the floor with the three-dimensional position of the floor.

  However, this position measurement method requires that the user of the mobile terminal device go to a place where a desired floor of the building can be photographed and point the camera of the mobile terminal device so that the floor is located at the center of the screen. In addition, since it is necessary to measure the distance from the portable terminal device to the desired floor of the building, it takes time and effort. It is also possible that the building is located in an environment where photographing, position measurement of the portable terminal device, or distance measurement from the portable terminal device to a desired floor of the building is impossible.

JP 2004-355058 A

  The present invention has been made in order to solve such a problem, and an object of the present invention is to relate information relating to an object existing on a desired floor of a building to the three-dimensional position information of the floor. It is possible to reduce the labor and time required to generate the three-dimensional position information, and to generate the three-dimensional position information regardless of the environment around the building.

The three-dimensional position information generating device of the present invention is configured to store building position information indicating the position of the building in the address information of the object from the address information storage unit in which the address information of the object existing in the building is stored. The building position information acquired by the building position information acquisition unit from the address-to-two-dimensional position storage unit in which the address information, the latitude information, and the longitude information are stored in association with each other. Two-dimensional position information acquisition means for acquiring latitude information and longitude information corresponding to the two-dimensional position-to-elevation storage unit in which the latitude information and longitude information of the land and the elevation information are stored in association with each other. The altitude information acquisition means for acquiring the altitude information corresponding to the latitude information and the longitude information acquired by the dimension position information acquisition means, and the target object exists among the address information of the target object from the address information storage unit. Based on floor information acquisition means for acquiring floor information indicating the floor number of the lower floor, floor information acquired by the floor information acquisition means, and preset height information per floor, the object is Floor height information acquisition means for acquiring the height information of the existing floor, and adding the height information of the floor acquired by the floor height information acquisition means to the elevation information acquired by the elevation information acquisition means And a target altitude information acquiring means for acquiring altitude information of the floor on which the target is present.
The three-dimensional position information generation method of the present invention includes a building position information indicating a position of the building in the address information of the object from an address information storage unit in which address information of the object existing in the building is stored. The building position information acquired in the building position information acquisition step from the address pair two-dimensional position storage unit in which the address information, the latitude information, and the longitude information are stored in association with each other. The two-dimensional position information acquisition step for acquiring the latitude information and the longitude information corresponding to the two-dimensional position-to-elevation storage unit in which the latitude information, the longitude information, and the elevation information of the land are stored in association with each other. The altitude information acquisition step of acquiring altitude information corresponding to the latitude information and longitude information acquired in the dimension position information acquisition step, and the target object exists in the address information of the target object from the address information storage unit. Based on the floor information acquisition step of acquiring floor information indicating the floor number of the lower floor, the floor information acquired in the floor information acquisition step, and the preset height information per floor, the object is A floor height information acquisition step for acquiring the height information of an existing floor, and adding the floor height information acquired in the floor height information acquisition step to the elevation information acquired in the elevation information acquisition step. And a target altitude information acquisition step of acquiring altitude information of the floor on which the target exists.

[Action]
According to the present invention, the latitude information and longitude information of the building is acquired from the building address information in the address information of the object existing in the building, and the land where the building exists is acquired from the latitude information and longitude information. Obtaining altitude information, based on the floor information in the address information of the object and the height information per floor, obtaining the height information of the floor on which the object exists, the height of the floor By adding the altitude information of the building to the information, the altitude information of the floor on which the object is present is acquired.

  According to the present invention, when associating information on an object existing on a desired floor of a building with the three-dimensional position information of the floor, it is possible to reduce the labor and time for generating the three-dimensional position information of the floor. 3D position information can be generated regardless of the environment around the building.

It is a figure which shows the system containing the height information generation apparatus of embodiment of this invention. It is a block diagram of the position related information provision apparatus in FIG. It is a figure which shows the data structure in embodiment of this invention. It is a flowchart which shows the storage procedure of the position relevant information in embodiment of this invention. It is a flowchart which shows the content of the three-dimensional position information acquisition procedure in FIG. It is a figure which shows the concept of the three-dimensional position information acquisition procedure in FIG.

Hereinafter, embodiments for carrying out the present invention will be described with reference to the drawings.
<System configuration>
FIG. 1 shows a system including a height information generating apparatus according to an embodiment of the present invention. This system includes a position-related information providing device 2, an address information server 3, a two-dimensional position information server 4, an altitude information server 5, a floor height information server 6, and a base station, each connected to a network 1 such as the Internet. 7 includes a mobile terminal device 8 connected to the network 1 via 7. Here, each server may be comprised by another computer, and the some server may be comprised by one computer.

  The portable terminal device 8 may be any portable device having a photographing function, a position measuring function, and a communication function. For example, a digital camera, a mobile phone with a camera, a PDA (Personal Digital Assistant), a PND (Personal Navigation Device), Such as a portable game machine. The mobile terminal device 8 and the position related information providing device 2 can communicate with each other via the base station 7 and the network 1.

  The mobile terminal device 8 transmits position information and orientation information to the location-related information providing device 2 during the shooting operation of the camera, and the location-related information providing device 2 is in a building that exists at a position corresponding to the received location information and orientation information. Information is transmitted to the mobile terminal device 8, and the mobile terminal device 8 realizes augmented reality by displaying on the display an image obtained by adding the information related to the object to the image of the building being photographed. Can

  The position related information providing apparatus 2 includes a DB (database) that stores position related information, that is, information related to the above-described object in association with the three-dimensional position of the object. Also, it has a function of generating the position related information. Furthermore, it has a function of generating three-dimensional position information (latitude information, longitude information, height information) of the object in the process of generating this position related information. That is, the position related information providing device 2 functions as the height information generating device of the present embodiment.

  The address information server 3, the two-dimensional position information server 4, the elevation information server 5, and the floor height information server 6 include an address information DB, a two-dimensional position information DB, an elevation information DB, and a floor height information table, respectively. When the position related information providing apparatus 2 generates the three-dimensional position information of the object in the building, the necessary information is provided in response to a request from the position related information providing apparatus 2. Details of the information to be provided will be described later.

<Configuration of position related information providing device>
FIG. 2 is a block diagram of the position related information providing apparatus 2. The position related information providing apparatus 2 includes a control unit 21, an operation unit 22, a display unit 23, a communication unit 24, and a storage unit 25, each connected to the control unit 21.

  The control unit 21 includes a CPU 211, a ROM 212, and a RAM 213, and controls the entire position related information providing apparatus. The CPU 211 implements various processes described later by loading a program stored in the ROM 212 into the RAM 213 and executing the program.

  The operation unit 22 includes various buttons for the operator to operate the position related information providing device 2. The display unit 23 includes a liquid crystal display device for displaying the operation state of the position-related information providing device 2, information input by the operator from the operation unit 22, and the like.

  The communication unit 24 communicates with the address information server 3, the two-dimensional position information server 4, the altitude information server 5, and the floor height information server 6 via the network 1. In addition, communication with the mobile terminal device 8 is performed via the network 1 and the base station 7. The storage unit 25 is composed of an HDD (hard disk device) and is provided with a position related information DB 251.

<data structure>
The position related information DB 251 stores information related to objects existing in the building and their three-dimensional positions in association with each other. As shown in FIG. 3A, the position related information includes a position related information ID, name information, three-dimensional position information (latitude information, longitude information, altitude information), and content information.

  The position related information ID is identification information of position related information. The name information is information indicating the name of the position related information. The three-dimensional position information (latitude information, longitude information, altitude information) is information indicating the latitude, longitude, and altitude of the object. When the object is located on a floor other than the first floor of the building, that is, on the second floor or above or in the basement, the altitude information indicates the altitude of the floor where the object is located. The content information is the content of the object, that is, business hours, products, etc. if the object is a store or a facility.

  As shown in FIG. 3B, the information stored in the address information DB in the address information server 3 includes an address information ID, object name information, and address information. The address information ID is identification information of address information. The object name information is information indicating the name of the object. The address information is information indicating the address of the object. When the object is located inside the building, the address information has floor information in the building in addition to the building address information indicating the address of the building (indication of residence or lot number). The floor number information includes information indicating the number of floors (the first floor of the XX building, the second floor of the XX building, the first floor of the XX building, etc.), and information including the numbers indicating the floor numbers (the XX building 301, the XX building 508, etc.) ) Etc.

  Information stored in the two-dimensional position information DB in the two-dimensional position information server 4 includes a two-dimensional position information ID, address information, and two-dimensional position information, as shown in FIG. 3C. The two-dimensional position information ID is identification information of the two-dimensional position information. The address information is information indicating an address specified by the two-dimensional position information ID. This address is only the residence display and lot number of the land, and may not include floor information in the building.

  The information stored in the elevation information DB in the elevation information server 5 includes an elevation information ID, two-dimensional position information, and elevation information as shown in FIG. 3D. The altitude information ID is identification information of altitude information. This identification information is created for each predetermined area, for example, 50 m square (50 m × 50 m mesh). The two-dimensional position information is longitude information and latitude information of a land located at the center of a predetermined area specified by the altitude information ID. The elevation information is average value information of the elevation of the area indicated by the two-dimensional position information.

  The information stored in the floor height information table in the floor height information server 6 includes a floor information ID, floor information, and floor height information as shown in FIG. 3E. The floor information ID is identification information of the floor information. This identification information is created for each floor of the building floor. The floor information is information indicating the number of floors (second floor, third floor, first basement, rooftop) specified by the floor information ID. The floor height information is information indicating the height of the floor specified by the floor information.

  The floor height information is calculated based on the height coefficient (height per floor) and the number of floors. That is, if the height coefficient is h and the floor number is N, the floor height information is h × (N−1). Here, a statistical average value of existing buildings is used as the height coefficient. However, in order to obtain more accurate floor height information, the height of each building may be measured, and a value obtained by dividing the height by the number of floors may be used as the height coefficient.

<Procedure for registering location-related information in the location-related information providing device>
In the system having the above configuration, the procedure in which the position related information providing apparatus 2 registers the position related information will be described with reference to the flowchart shown in FIG. The flow in this figure is realized by the CPU 211 of the position related information providing apparatus 2 executing a program stored in the ROM 212.

  When the operator of the position related information providing apparatus 2 inputs the object name and the content information associated with the object using the operation unit 22, the CPU 211 generates a position related information ID and the input object name and Content information associated with the object is associated and written to the RAM 213 (step S1). By this step, the position related information ID, the name information, and the content information in FIG. 3A are held in the RAM 213.

  Next, the CPU 211 receives the three-dimensional position information (latitude information, longitude information, elevation) of the object input in step S1 from the address information server 3, the two-dimensional position information server 4, the elevation information server 5, and the floor height information server 6. Information) is acquired and written in the RAM 213 in association with the position-related information ID, name information, and content information held in the RAM 213 (step S2). By this step, each information in FIG. 3A is held in the RAM 213.

  Next, the CPU 211 stores each piece of information held in the RAM 213 in the position related information DB 251 (step S3). By this step, each information in FIG. 3A is stored in the position related information DB 251.

<Procedure for obtaining 3D position information>
Details of step S2 in FIG. 4 are shown in FIG. The steps in this figure are executed by the CPU 211, but in the following description, for the sake of convenience, the operation of the position related information providing apparatus 2 is assumed.

  First, the position related information providing apparatus 2 acquires address information of the object from the address information server 3 (step S11). That is, when the position-related information providing device 2 transmits the name information of the object to the address information server 3, the address information server 3 receives the name information of the object and refers to the address information DB to indicate the name information. The address information of the object is retrieved and read out and transmitted to the position related information providing apparatus 2. Here, when the target object is present on a predetermined number of floors of the building, the address information is in addition to the building address information indicating the address of the building (for example, 1-1-1 Yurakucho, Chiyoda-ku, Tokyo) The address information server 3 transmits the building address information and the floor information to the position related information providing device 2 because the floor information (eg, Yurakucho Building 7F, Ginza Building 301) is included.

  Next, the position related information providing apparatus 2 acquires the longitude information and the latitude information of the building where the object exists from the two-dimensional position information server 4 (step S12). That is, when the location-related information providing device 2 transmits the building address information acquired in step S11 to the two-dimensional location information server 4, the two-dimensional location information server 4 receives the building address information and refers to the two-dimensional location information DB. By doing so, the latitude information and longitude information of the land indicated by the building address information are retrieved and read out, and transmitted to the position related information providing apparatus 2.

  Next, the position related information providing apparatus 2 acquires elevation information of the building where the object exists from the elevation information server 5 (step S13). That is, when the position related information providing apparatus 2 transmits the latitude information and longitude information acquired in step S12 to the elevation information server 5, the elevation information server 5 receives the latitude information and longitude information, and refers to the elevation information DB. Then, the altitude information of the land indicated by the latitude information and the longitude information is searched and read out, and transmitted to the position related information providing apparatus 2.

  Next, the position-related information providing device 2 acquires the floor height information of the building where the object exists from the floor height information server 6 (step S14). That is, when the position related information providing device 2 transmits the floor information acquired in step S11 to the floor height information server 6, the floor height information server 6 receives the floor information and refers to the floor height information table. Then, the floor height information of the floor is read and transmitted to the position related information providing apparatus 2.

  Next, the position related information providing apparatus 2 calculates the altitude information of the floor in the building where the target object exists by adding the height information of the floor acquired in step S14 to the altitude information acquired in step S13. (Step S15).

  The latitude information and longitude information acquired in step S12 and the elevation information acquired in step S15 become the three-dimensional position information shown in FIG. 3A.

  FIG. 6 is a diagram showing the concept of the three-dimensional position information acquisition procedure. As shown in the figure, the part of the address indicating the address of the building “XX prefecture XX city XX town XX number XX number XX”, “△△ prefecture △ city △△ town △△ chome △ 2D position information “(Xa, Ya)”, “(Xb, Yb)” of the point where the building is located is acquired from “No. △△ No.” and the point where the building is located is obtained from the 2D position information. Elevation information “Za” and “Zb” are acquired. Also, floor height information “Ha” and “Hb” are acquired from the addresses “10F” and “4F” indicating the floor in the building and the height coefficient. Further, the floor height information is acquired by adding the floor height information “Ha” and “Hb” to the height information “Za” and “Zb”. In FIG. 6, although the number of floors in the building is different (10F, 4F), the altitude of the land on which the building is built is also different (Za, Zb), so that the floors have the same altitude, and the user sees the same height. Shows the case.

  As described above in detail, according to the embodiment of the present invention, the address information of the object existing in the building is acquired, and the latitude information of the land where the building exists from the building address information in the address information. And the longitude information, the altitude information of the land where the building exists is obtained from the latitude information and the longitude information, and based on the floor information and the height coefficient in the address information of the object, the object By acquiring the height information of the floor where the object is located, and by adding the elevation information of the land where the building is located to the height information of the floor, the elevation information of the floor where the object is present is acquired. Regardless of the surrounding environment of the building where the object exists, the three-dimensional position information (latitude information, longitude information, and altitude information) of the floor where the object exists can be generated.

  Also, compared with a conventional device that generates the three-dimensional position information of the desired floor of the building by determining the three-dimensional position of the portable terminal device as a reference position and obtaining the desired floor orientation and distance of the building with respect to the reference position. The labor and time for generating the three-dimensional position information are greatly reduced.

  In addition, although the above embodiment demonstrated as a real-time process with respect to the one portable terminal device 8, it is actually performed by the batch process with respect to several portable terminal device. In the above embodiment, the procedure for generating all the information shown in FIG. 3A has been described. First, a part of the information shown in FIG. 3A (for example, information other than elevation information) is created and stored in the position related information DB 251. It is also possible to save and then generate only the remaining information (e.g. elevation information) and save it additionally. Furthermore, the process of step S1 of FIG. 4 can also be performed by voice recognition. Further, when the name of a store or the like is not known but the address is known, the address of the target can be input in step S1 of FIG. 4 and the flow of step S11 of FIG. 5 can be omitted.

  In addition, for objects in prominent buildings such as the first floor of the Tokyo Tower's main observatory, height information is available on the homepage. Information can be obtained. Similarly, a DB having the data structure shown in FIG. 3F can be provided so that the floor height information can be obtained immediately from the DB when the user inputs name information.

  DESCRIPTION OF SYMBOLS 2 ... Position related information provision apparatus, 3 ... Address information server, 4 ... Two-dimensional position information server, 5 ... Elevation information server, 6 ... Floor height information server, 8 ... Portable terminal device.

Claims (5)

Building position information acquisition means for acquiring building position information indicating the position of the building among the address information of the object from the address information storage unit in which the address information of the object existing in the building is stored;
Acquires latitude information and longitude information corresponding to the building position information acquired by the building position information acquisition means from the address pair two-dimensional position storage unit in which the address information, latitude information, and longitude information are stored in association with each other. Two-dimensional position information acquisition means for
Altitude information corresponding to the latitude information and longitude information acquired by the two-dimensional position information acquisition means from the two-dimensional position-to-elevation storage unit in which the latitude information and longitude information of the land and the elevation information are stored in association with each other. Altitude information acquisition means for acquiring
Floor information acquisition means for acquiring floor information indicating the floor number of the floor on which the object exists, from the address information storage unit,
Floor height information acquisition means for acquiring height information of the floor on which the object is present based on the floor information acquired by the floor information acquisition means and preset height information per floor When,
The target altitude for acquiring the altitude information of the floor on which the object exists by adding the height information of the floor acquired by the floor height information acquiring means to the altitude information acquired by the altitude information acquiring means And a three-dimensional position information generating device characterized by comprising: In the three-dimensional position information generation device according to claim 1,
The height per floor is a statistical average value of existing buildings. In the three-dimensional position information generation device according to claim 1,
The height per floor is a value obtained by dividing an actual measurement value of the height of the building by the number of floors of the building. A building position information acquisition step of acquiring building position information indicating the position of the building among the address information of the object from the address information storage unit in which the address information of the object existing in the building is stored;
Acquires latitude information and longitude information corresponding to the building position information acquired in the building position information acquisition step from the address pair two-dimensional position storage unit in which the address information, latitude information, and longitude information are stored in association with each other. A two-dimensional position information acquisition step,
The altitude information corresponding to the latitude information and the longitude information acquired in the two-dimensional position information acquisition step from the two-dimensional position-to-elevation storage unit in which the latitude information and longitude information of the land and the altitude information are stored in association with each other. Elevation information acquisition process to acquire
A floor information acquisition step of acquiring floor information indicating the floor number of the floor on which the object exists, from the address information storage unit,
Floor height information acquisition step of acquiring height information of the floor on which the object exists based on the floor information acquired in the floor information acquisition step and preset height information per floor When,
The target altitude for acquiring the altitude information of the floor on which the object exists by adding the height information of the floor acquired in the floor height information acquiring step to the altitude information acquired in the altitude information acquiring step And a method for generating three-dimensional position information.   A program for causing a computer to function as each unit of the three-dimensional position information generating apparatus according to any one of claims 1 to 3.

Images