WO2009128364A1 - 情報処理装置、プログラム、情報処理方法、および情報処理システム - Google Patents
情報処理装置、プログラム、情報処理方法、および情報処理システム Download PDFInfo
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- WO2009128364A1 WO2009128364A1 PCT/JP2009/057105 JP2009057105W WO2009128364A1 WO 2009128364 A1 WO2009128364 A1 WO 2009128364A1 JP 2009057105 W JP2009057105 W JP 2009057105W WO 2009128364 A1 WO2009128364 A1 WO 2009128364A1
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W64/00—Locating users or terminals or network equipment for network management purposes, e.g. mobility management
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S5/00—Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations
- G01S5/0009—Transmission of position information to remote stations
- G01S5/0018—Transmission from mobile station to base station
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S5/00—Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations
- G01S5/02—Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations using radio waves
- G01S5/0252—Radio frequency fingerprinting
- G01S5/02521—Radio frequency fingerprinting using a radio-map
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W24/00—Supervisory, monitoring or testing arrangements
- H04W24/08—Testing, supervising or monitoring using real traffic
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W24/00—Supervisory, monitoring or testing arrangements
- H04W24/10—Scheduling measurement reports ; Arrangements for measurement reports
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/30—Services specially adapted for particular environments, situations or purposes
- H04W4/33—Services specially adapted for particular environments, situations or purposes for indoor environments, e.g. buildings
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W60/00—Affiliation to network, e.g. registration; Terminating affiliation with the network, e.g. de-registration
Definitions
- the present invention relates to an information processing apparatus, a program, an information processing method, and an information processing system.
- a receiving device capable of receiving a radio signal transmitted from a satellite is mounted on a moving body such as a car or a mobile phone. According to GPS (Global Positioning System) positioning, it is possible to estimate the position of a mobile object equipped with such a receiving device.
- GPS Global Positioning System
- the position estimation technique using such a receiving apparatus is an important common basic technique in various fields such as navigation, security, and entertainment.
- a position estimation device capable of communicating with a wireless terminal by measuring the signal strength of a signal transmitted from the wireless base station by a wireless terminal that performs wireless communication with a wireless LAN (Local Area Network) base station (access point).
- a position estimation method for estimating the position of the wireless terminal based on the signal strength is also conceivable.
- a wireless LAN base station transmits a beacon for notifying the presence of a wireless LAN base station to the surroundings at a constant cycle (for example, 5 times / second).
- the wireless terminal transmits the signal strength of the beacon to the position estimation device, and the position estimation device can estimate the position of the wireless terminal based on the signal strength and the position of the wireless LAN base station registered in advance.
- the position estimation method since the base station of the wireless LAN is also installed indoors or underground, it is possible to estimate the position indoors or underground that is difficult with the position estimation technology based on GPS positioning.
- the conventional position estimation technique simply estimates the floor where the wireless terminal exists based on the current signal strength, the floor where each base station exists needs to be accurately registered in the position estimation server. .
- the present invention has been made in view of the above problems, and an object of the present invention is to provide a wireless terminal building even if the position of each base station building is not accurately pre-registered. It is an object to provide a new and improved information processing apparatus, program, information processing method, and information processing system capable of estimating a position.
- section information indicating one section in a building, and signal strength measurement of a radio signal transmitted from a surrounding base station in a wireless terminal existing in the one section A storage unit that stores the first measurement information acquired by the above and the base station identification information for identifying the base station in association with each other, and the signal of the radio signal in the arbitrary radio terminal from the arbitrary radio terminal 1 or 2 or more 2nd measurement information acquired by intensity
- the information processing apparatus includes the one or more first measurement information retrieved by the retrieval unit and the one or more second measurement information received by the reception unit. Based on the two or more first measurement information and the second measurement information associated with the same base station identification information, the one or two or more first measurement information and the one or two or more first measurement information.
- the selection unit further includes an evaluation unit that evaluates the relationship between the acquisition positions of the two pieces of measurement information, and the selection unit is based on an evaluation result by the evaluation unit, You may select the division information matched with the 1st measurement information which comprises the group of 2 measurement information.
- the evaluation unit is configured to obtain the first measurement information acquisition position and the first measurement based on the first measurement information for each of the one or more first measurement information searched by the search unit.
- a first distance between the base station corresponding to the information is calculated, and for each of the one or more second measurement information received by the receiving unit, the first measurement information is calculated based on the second measurement information.
- 2nd distance between the acquisition position of 2 measurement information and the base station corresponding to said 2nd measurement information is calculated, 1st measurement information matched with the same base station identification information, and 1st
- the first distance and the second distance calculated based on the measurement information of 2 are added, and the selection unit has a minimum addition value with the second distance obtained by the evaluation unit. You may select division information corresponding to distance.
- the evaluation unit when a plurality of first measurement information associated with the same base station identification information and the same partition information is searched by the search unit, the same base station identification information and the same partition information Is calculated based on the first measurement information and the second measurement information that are associated with each other, and an average value of the added values of the first distance and the second distance is calculated. You may select the division information corresponding to the 1st measurement information concerning the calculation by the said evaluation part in which the said addition value became the minimum.
- the information processing apparatus when a plurality of pieces of first measurement information associated with the same base station identification information are retrieved by the retrieval unit, the number of sections associated with the same base station identification information is large. You may further provide the priority processing part which processes so that information may be preferentially selected by the said selection part.
- a computer is connected to an arbitrary wireless terminal obtained by measuring a signal strength of a wireless signal in the arbitrary wireless terminal. 2nd measurement information and the base station of the transmission source of the radio signal received by the arbitrary radio terminal, and 1 or 2 or more associated with each of the 1 or 2 or more second measurement information
- a receiving unit that receives base station identification information; section information indicating a section in a building; and a signal strength measurement of a radio signal transmitted from a surrounding base station in a wireless terminal existing in the section.
- the receiving unit Corresponds to the one or more base station identification information received by the receiving unit from a storage medium storing one measurement information and base station identification information for identifying the base station in association with each other
- a search unit that searches for one or two or more first measurement information, the one or more second measurement information received by the receiving unit, and the one that is searched by the search unit Alternatively, based on two or more pieces of first measurement information, a selection unit that selects division information associated with one of the one or two or more pieces of first measurement information, and a division selected by the selection unit
- a program for functioning as a transmitter that transmits information to the arbitrary wireless terminal is provided.
- one or two or more second acquired from an arbitrary wireless terminal by signal strength measurement of the wireless signal in the arbitrary wireless terminal 1 or 2 or more base station identification which shows the measurement information and the base station of the transmission source of the radio signal received by the arbitrary radio terminal, and is associated with each of the 1 or 2 or more second measurement information
- Receiving step for receiving information, section information indicating one section in the building, and first measurement obtained by signal strength measurement of a radio signal transmitted from a surrounding base station in a wireless terminal existing in the one section
- a search step for searching for one or more first measurement information, the one or more second measurement information received in the reception step, and the one or more searched by the search step Based on two or more pieces of first measurement information, a selection step for selecting the piece of piece information associated with one of the one or two or more pieces of first
- an information processing system including a wireless terminal and an information processing apparatus.
- the radio terminal includes a radio signal receiving unit that receives a radio signal transmitted from a base station, a measurement unit that measures the signal strength of the radio signal received by the radio signal receiving unit, and the radio that is received by the measurement unit 1 or 2 or more 2nd measurement information obtained by signal strength measurement of a signal, the base station of the transmission source of the said radio signal are shown, and it matched with each of said 1 or 2 or more 2nd measurement information An information transmission unit that transmits one or more base station identification information is provided.
- the information processing apparatus is configured to obtain first section information indicating one section in a building, and signal strength measurement of a radio signal transmitted from a surrounding base station in an arbitrary wireless terminal existing in the one section.
- a storage unit that stores measurement information and base station identification information that identifies the base station in association with each other, from the information transmission unit of the wireless terminal, the one or more second measurement information, and
- a receiving unit that receives one or more base station identification information, and one or more first measurement information associated with the one or more base station identification information received by the receiving unit.
- a selection unit that selects partition information associated with one of the first measurement information or two or more first measurement information; and a transmission unit that transmits the partition information selected by the selection unit to the wireless terminal.
- an information processing system including a wireless terminal and an information processing apparatus.
- the radio terminal includes a radio signal receiving unit that receives a radio signal transmitted from a base station, a measurement unit that measures the signal strength of the radio signal received by the radio signal receiving unit, and block information indicating a block in a building Indicates an input unit input by a user, one or more second measurement information obtained by signal strength measurement of a radio signal by the measurement unit, and a base station that is a transmission source of the radio signal, Alternatively, an information transmission unit that transmits the one or more base station identification information associated with each of the two or more second measurement information and the partition information input to the input unit is provided.
- a receiving unit that receives the one or more second measurement information, the one or more base station identification information, and the partition information from the information transmission unit of the wireless terminal; and a storage unit;
- Each of the one or more second measurement information received by the receiving unit, the one or more base station identification information associated with the second measurement information, and the partition information Are recorded in the storage unit in association with each other.
- the building of the wireless terminal can be obtained even if the position of each base station in the building is not accurately pre-registered.
- the position at can be estimated.
- FIG. 1 is an explanatory diagram showing a configuration example of a position estimation system (information processing system) 1 according to the present embodiment.
- the position estimation system 1 includes a communication network 12, a position estimation server 20, base stations 30A to 30C, and a radio terminal 40.
- a capital letter is added after the symbol as in the base stations 30 ⁇ / b> A and 30 ⁇ / b> B.
- the base station 30 is simply used.
- the base station 30 relays communication between spatially dispersed communication devices.
- the base station 30 relays wireless communication between the wireless terminal 40 and another wireless terminal (not shown) within the radio wave reach, or communication connected to the wireless terminal 40 and the base station 30 by wire. Communication with the device can be relayed.
- the base station 30 may be a wireless LAN (Local Area Network) base station based on the WiFi (Wireless Fidelity) standard, a GSM (Global System for Mobile Communications) base station, or Bluetooth. May be a base station.
- the base station 30 can periodically transmit a beacon signal for notifying the surroundings of the presence of the base station 30 in addition to a signal transmitted when relaying wireless communication.
- the beacon signal includes, for example, a base station ID as base station identification information uniquely given to the base station 30.
- the radio terminal 40 can confirm the presence of the base station 30 existing in the vicinity based on the base station ID of the received beacon signal.
- the wireless terminal 40 can transmit and receive various data based on wireless communication controlled by the base station 30.
- the wireless terminal 40 can receive content data from a content distribution server (not shown) via the base station 30 and can send and receive e-mails with other wireless terminals (not shown).
- Content data includes music data such as music, lectures and radio programs, video data such as movies, television programs, video programs, photographs, pictures and charts, and arbitrary data such as games and software. It is done.
- the wireless terminal 40 includes a PC (Personal Computer), a home video processing device (DVD recorder, VCR, etc.), a PHS (Personal Handyphone System), a portable music player, a portable video processing device, a PDA (Personal Digital). Assistance), information processing devices such as home game devices, portable game devices, and home appliances.
- PC Personal Computer
- PHS Personal Handyphone System
- portable music player a portable music player
- portable video processing device a portable video processing device
- PDA Personal Digital). Assistance
- information processing devices such as home game devices, portable game devices, and home appliances.
- the communication network 12 is a wired or wireless transmission path for information transmitted from a device connected to the communication network 12.
- the communication network 12 may be a public line network such as the Internet, a telephone line network, a satellite communication network, various LANs including the Ethernet (registered trademark), a WAN (Wide Area Network), an IP-VPN ( A dedicated line network such as Internet Protocol-Virtual Private Network may also be included.
- the position estimation server 20 stores base station information including the position information and base station ID of each base station 30, and based on the signal strength information received from the wireless terminal 40 and the base station information, for example, a triangle It has a function of estimating the position of the wireless terminal 40 based on the principle of surveying.
- the position estimation server 20 notifies the wireless terminal 40 of position information indicating the estimated position, and the wireless terminal 40 can recognize the position information of the terminal itself. Note that the position estimation server 20 can respond to position estimation requests from not only the wireless terminal 40 but also from a plurality of other wireless terminals.
- the wireless terminal 40 performs signal strength measurement of the wireless signal transmitted from the surrounding base station 30 and transmits the measurement result to the position estimation server 20. Location information can be acquired.
- the position information includes information indicating a two-dimensional position that does not include the height direction, such as latitude and longitude. Therefore, when the wireless terminal 40 existing in a certain building stores the position information of the building from the position estimation server 20 or the position information and the building name are stored in the position estimation server 20 in association with each other. Can acquire the building name of the building.
- the wireless terminal 40 corresponds to the floor, for example. It is possible to provide guidance to the user. Therefore, it is practically important for the wireless terminal 40 to grasp the floor information indicating the floor in the building.
- the position estimation system 1 according to the present embodiment has been created with the above circumstances taken into consideration. According to the position estimation system 1 according to the present embodiment, it is possible to estimate the position of the wireless terminal 40 in the building while simplifying the effort of pre-registration. Hereinafter, the position estimation system 1 according to the present embodiment will be described in detail.
- This embodiment is a registration stage in which the location estimation server 20 registers base station information including floor information.
- the position estimation server 20 is roughly divided into estimation stages in which the floor information of the wireless terminal 40 is estimated based on the registered base station information. Therefore, in the following, after describing the hardware configuration of the position estimation server 20 included in the position estimation system 1 according to the present embodiment, each of the floor information registration stage and the estimation stage will be specifically described.
- FIG. 2 is a block diagram showing a hardware configuration of the position estimation server 20.
- the position estimation server 20 includes a CPU (Central Processing Unit) 201, a ROM (Read Only Memory) 202, a RAM (Random Access Memory) 203, a host bus 204, a bridge 205, an external bus 206, an interface 207, and the like.
- a CPU Central Processing Unit
- ROM Read Only Memory
- RAM Random Access Memory
- the CPU 201 functions as an arithmetic processing unit and a control unit, and controls the overall operation in the position estimation server 20 according to various programs. Further, the CPU 201 may be a microprocessor.
- the ROM 202 stores programs used by the CPU 201, calculation parameters, and the like.
- the RAM 203 primarily stores programs used in the execution of the CPU 201, parameters that change as appropriate during the execution, and the like. These are connected to each other by a host bus 204 including a CPU bus.
- the host bus 204 is connected to an external bus 206 such as a PCI (Peripheral Component Interconnect / Interface) bus via a bridge 205.
- an external bus 206 such as a PCI (Peripheral Component Interconnect / Interface) bus
- PCI Peripheral Component Interconnect / Interface
- the host bus 204, the bridge 205, and the external bus 206 are not necessarily configured separately, and these functions may be mounted on one bus.
- the input device 208 is, for example, an input means for a user to input information, such as a mouse, keyboard, touch panel, button, microphone, switch, and lever, and an input that generates an input signal based on the input by the user and outputs the input signal to the CPU 201 It consists of a control circuit.
- the administrator of the position estimation server 20 can input various data and instruct processing operations to the position estimation server 20 by operating the input device 208.
- the output device 210 includes, for example, a display device such as a CRT (Cathode Ray Tube) display device, a liquid crystal display (LCD) device, an OLED (Organic Light Emitting Display) device and a lamp, and an audio output device such as a speaker and headphones.
- the output device 210 outputs reproduced content, for example.
- the display device displays various information such as reproduced video data as text or images.
- the audio output device converts reproduced audio data or the like into audio and outputs it.
- the storage device 211 is a data storage device configured as an example of a storage unit of the position estimation server 20 according to the present embodiment.
- the storage device 211 may include a storage medium, a recording device that records data on the storage medium, a reading device that reads data from the storage medium, a deletion device that deletes data recorded on the storage medium, and the like.
- the storage device 211 is composed of, for example, an HDD (Hard Disk Drive).
- the storage device 211 drives a hard disk and stores programs executed by the CPU 201 and various data. In addition, base station information described later is recorded in the storage device 211.
- the drive 212 is a storage medium reader / writer, and is built in or externally attached to the position estimation server 20.
- the drive 212 reads information recorded on a removable storage medium 24 such as a mounted magnetic disk, optical disk, magneto-optical disk, or semiconductor memory, and outputs it to the RAM 203.
- the communication device 215 is a communication interface configured with, for example, a communication device for connecting to the communication network 12.
- the communication device 215 may be a wireless LAN (Local Area Network) compatible communication device, a wireless USB compatible communication device, or a wire communication device that performs wired communication.
- the communication device 215 transmits and receives various types of information such as signal strength information, floor information, and position information to and from the wireless terminal 40 via the communication network 12.
- the hardware configuration of the position estimation server 20 has been described above with reference to FIG. 2, the hardware of the wireless terminal 40 can be configured substantially the same as the position estimation server 20. Is omitted.
- FIG. 3 is a functional block diagram showing the configuration of the position estimation server 20 and the wireless terminal 40 included in the position estimation system 1 according to the present embodiment.
- the position estimation server 20 includes a communication unit 216, a base station information management unit 220, a storage unit 224, a search unit 232, a distance evaluation unit 234, a floor estimation unit 236, and a position information estimation.
- an estimation unit 230 including a unit 238.
- the wireless terminal 40 includes a communication unit 416, a measurement unit 420, a display screen generation unit 424, a display unit 428, an operation unit 432, a registration request unit 436, and an information acquisition unit 440.
- the communication unit 416 of the wireless terminal 40 is an interface with the base station 30 or the position estimation server 20 and functions as a transmission unit and a reception unit that transmit and receive various types of information to and from the base station 30 or the position estimation server 20.
- the communication unit 416 receives a radio signal including the base station ID of the base station 30 from the base station 30.
- the communication unit 416 transmits registration request information described later to the position estimation server 20.
- the communication unit 416 may have a wireless communication function defined in IEEE (Institute of Electrical and Electronic Engineers) 802.11a, b, g, or the like.
- the communication unit 416 may have a MIMO (Multiple Input Multiple Output) communication function defined in IEEE 802.11n.
- the communication unit 416 may have a communication function corresponding to WiMAX (Worldwide Interoperability for Microwave Access) planned for IEEE 802.16.
- the measuring unit 420 measures the signal strength of the radio signal received from the base station 30 by the communication unit 416. For example, the measurement unit 420 acquires the signal strength information shown in FIG. 5 by measuring the signal strength at the position P1 shown in FIG.
- FIG. 4 is an explanatory view schematically showing a cross section of a certain building. More specifically, FIG. 4 shows a cross section of a 6-story building, and a base station 30 is installed on each floor of the building. For example, base station 30A on the first floor of the building, base station 30B on the second floor, base station 30C on the third floor, base station 30D on the fourth floor, and base stations 30E and 30F on the fifth floor. However, the base station 30G is installed on the second floor on the sixth floor.
- FIG. 5 is an explanatory diagram showing an example of signal strength information obtained by signal strength measurement at the position P1.
- the base station ID is equal to the code of the base station 30 for convenience of explanation.
- the base station ID of the base station 30A illustrated in FIG. 4 is 30A.
- the base station 30D is installed on the same fourth floor as the position P1
- the base station 30C is installed on the third floor, which is the lower floor of the position P1, and the upper floor of the position P1.
- Base stations 30E and 30F are installed on a fifth floor
- a base station 30G is installed on the sixth floor.
- the signal strength of the radio signal transmitted from each base station 30 is attenuated as the distance increases.
- an obstacle such as a wall, a floor, or a ceiling is present between the wireless terminal 40 and the wireless signal transmitted from each base station 30, the wireless signal is transmitted by diffracting or partially passing the obstacle. Since the signal reaches the terminal 40, the signal strength deteriorates.
- the signal strength of the radio signal transmitted from the base station 30D installed on the same fourth floor as the position P1 where the mobile terminal 40 exists is the highest “ ⁇ 57 dBm”. It is.
- the signal strength of the radio signal transmitted from the position P1 where the mobile terminal 40 exists and the base station 30C installed through the floor is “ ⁇ 67 dBm”, and the radio signal transmitted from the base station 30D is The signal strength is lower than the signal.
- the base stations 30E, 30F, and 30G installed via the position P1 and the obstacle also have a lower signal strength at the position P1 than the radio signal transmitted from the base station 30D.
- the display screen generation unit 424 generates various display screens and causes the display unit 428 to display the generated display screens.
- the display screen generation unit 424 generates, for example, a floor information registration screen or a guidance screen according to the floor information acquired by the information acquisition unit 440.
- the display unit 428 corresponds to the output device 210 described with reference to FIG. 2 and displays various display screens generated by the display screen generation unit 424. A specific example of the floor information registration screen generated by the display screen generation unit 424 and displayed on the display unit 428 will be described below with reference to FIG.
- FIG. 6 is an explanatory diagram showing an example of a floor information registration screen generated by the display screen generation unit 424.
- a floor information registration screen is a screen for registering the floor information of each base station 30 to be used when estimating the floor of the wireless terminal 40 in the position estimation server 20, and is generated based on, for example, a user operation. Is done.
- the floor information registration screen includes a floor input area 52, a building name input area 54, and an OK button 56, as shown in FIG.
- the floor input area 52 is an area for inputting a floor (floor) where the wireless terminal 40 currently exists.
- the user of the wireless terminal 40 can input a floor into the floor input area 52 by operating the operation unit 432.
- FIG. 6 since it is assumed that the user registers floor information at the position P ⁇ b> 1, an example in which “4th floor” is input in the floor name input area 52 is illustrated.
- the building name input area 54 is an area for inputting the name of the building where the wireless terminal 40 currently exists.
- the user of the wireless terminal 40 can input the name of the building in the building name input area 54 by operating the operation unit 432.
- FIG. 6 shows an example in which “KK building” is input in the building name input area 54.
- the OK button 56 is a button for confirming input contents to the floor input area 52 and the building name input area 54.
- floor information is given as an example of section information indicating one section of a building, but the section information is not limited to this example.
- the division information includes the names of rooms (room 301, conference room, reception room, etc.) that are partitioned by obstacles such as walls, even if they are on the same floor, and the user (SSS, TT, UUU, etc.) It may be information indicating a store.
- a building is taken as an example of a building, but the building is not limited to this example.
- a building is a subway station, an attraction facility (in this case, a haunted house, a cafeteria, a VVV area, etc. are assumed as section information), a bullet train (in this case, a vehicle number is assumed as section information) Or any artificial object such as a ship.
- the operation unit 432 is an interface for the user to input various information or various instructions to the wireless terminal 40. As described above, the user operates the operation unit 432 to cause the display screen generation unit 424 to generate a floor information registration screen, and inputs floor information such as a floor name and a building name on the floor information registration screen. can do.
- the registration request unit 436 includes registration request information including the floor name, the building name, and the signal strength information that are input to the floor information registration screen. Is transmitted to the position estimation server 20 via the communication unit 416. A specific example of such registration request information is shown in FIG. 7A.
- FIG. 7A is an explanatory diagram showing a specific example of the registration request information transmitted from the mobile terminal 40 at the position P1.
- the registration request unit 436 associates the signal strength information (first measurement information) acquired by the measurement unit 420 at the position P1 with floor information such as “KK building” and “4th floor”. At the same time, it is transmitted to the position estimation server 20 as registration request information.
- the measurement unit 420 may perform signal strength measurement triggered by the user selecting the OK button 56 on the floor information registration screen.
- FIG. 7B, 7C, and 7D show specific examples of the registration request information as in FIG. 7A. More specifically, FIG. 7B is an explanatory diagram showing a specific example of registration request information transmitted from the mobile terminal 40 at the position P2, and FIG. 7C shows registration request information transmitted from the mobile terminal 40 at the position P3. It is explanatory drawing which showed the specific example. FIG. 7D is an explanatory diagram showing a specific example of the registration request information transmitted from the portable terminal 40 at the position P4.
- the registration request information may include distance information between the acquisition position of the signal strength information and each base station 30 estimated from the signal strength information by a method described later, instead of the signal strength information.
- the communication unit 216 of the position estimation server 20 is an interface with the wireless terminal 40, and serves as a transmission unit and a reception unit that transmit and receive various types of information to and from the wireless terminal 40. It has a function.
- the communication unit 216 receives the registration request information shown in FIG.
- the base station information management unit 220 manages base station information such as registration of new base station information in the storage unit 224, update, correction, and deletion of base station information registered in the storage unit 224.
- the base station information is information including, for each base station 30, a base station ID, position information (latitude, longitude) indicating a position where the base station is installed, signal strength, and floor information.
- the base station information may include a virtual distance between the signal strength acquisition position and the installation position of the base station 30 estimated from the signal strength instead of the signal strength. For example, by substituting the signal strength into Equation 1 below, the virtual distance between the signal strength acquisition position and the installation position of the base station 30 can be estimated.
- Equation 1 A and B are constants, and rssi represents signal strength.
- rssi signal strength.
- a and B are constants, and rssi represents signal strength.
- a virtual estimated distance between the signal strength acquisition position and the installation position of the base station 30 can be calculated as 83 m.
- the signal strength greatly depends on the presence or absence of an obstacle, and although the estimated distance calculated by the above formula 1 does not necessarily match the actual distance, the estimated distance calculated by the above formula 1 depends on the signal strength acquisition position and the base. This is an index indicating the goodness of the communication path between the station 30 and the installation position.
- the base station information includes the estimated distance calculated by the above formula 1 instead of the signal strength.
- the base station information management unit 220 When the registration request information is received from the wireless terminal 40 by the communication unit 216, the base station information management unit 220 adds or updates the base station information to the storage unit 224 based on the registration request information. For example, when the registration request information shown in FIG. 7 group is received from one or more wireless terminals 40, the base station information management unit 220 registers the base station information group shown in FIG.
- FIG. 8 is an explanatory diagram showing a specific example of the base station information group registered in the storage unit 224.
- each base station information is associated with a base station ID, an estimated distance, and floor information.
- base station information of base station ID “30C”, estimated distance “83 m”, and floor information “5th floor” is base station information registered based on the registration request information at position P2 shown in FIG. 7B.
- the base station information indicates that the signal strength is measured at a position where the distance to the base station 30C is estimated to be 83 m, and the measurement floor is “fifth floor”. .
- the base station 30C is actually installed on the third floor. That is, in the present embodiment, only accurate floor information is not necessarily registered as base station information. However, as described in “[2-3] Estimation of floor information”, according to the present embodiment, even if inaccurate floor information is included, it is possible to appropriately estimate the floor on which the wireless terminal 40 exists. Is possible.
- the storage unit 224 that stores the base station information shown as an example in FIG. 8 includes an EEPROM (Electrically Erasable Programmable Read-Only Memory), an EPROM (Erasable Programmable Read Only Memory) and a non-volatile disk such as an EEPROM.
- Magnetic discs such as magnetic discs, CD-R (Compact Disc Recordable) / RW (ReWriteable), DVD-R (Digital Versatile Disc Recordable) / RW / + R / + RW / RAM (Random AccessMB) Ray Disc (registered trademark)) -R / BD- Optical disk or the like E, may be a storage medium such as a MO (Magneto Optical) disk.
- MO Magnetto Optical
- the base station information includes position information indicating the latitude and longitude of each base station 30, but the description of the position information is omitted in FIG.
- the floor information may include not only the floor name but also the name of a building such as a KK building, but the description of the name of the building is omitted below.
- the position estimation server 20 includes the signal strength information in the wireless terminal 40 and the base station registered in the storage unit 224 described in “[2-2] Registration of floor information”. Use station information.
- the information acquisition unit 440 of the wireless terminal 40 receives the measurement information (second measurement information) obtained by the signal strength measurement in the measurement unit 420 as the floor information estimation request via the communication unit 416. 20 to send.
- the information acquisition unit 440 may periodically transmit the measurement information of the floor information or may perform it based on a user operation on the operation unit 432.
- the measurement information signal strength information can be considered.
- the base station ID, the measurement position estimated from the signal strength information, and the distance between each base station 30 are associated with each other. Information may be provided.
- FIG. 9 is an explanatory diagram showing a specific example of measurement information transmitted from the information acquisition unit 440 at the position P5 shown in FIG.
- the position P5 since the position P5 is on the fourth floor, it is considered that the estimated distance from the base station 30D installed on the same fourth floor is the shortest.
- the estimated distance to the base station 30E installed on the upper fifth floor is shorter than the estimated distance to the base station 30D installed on the same fourth floor. Cases are also envisaged. This occurs when the position P5 and the base station 30E are separated from each other but the signal strength attenuation of the radio signal between the base station 30E and the position P5 is low due to the material of the ceiling, the presence or absence of the atrium. .
- the position estimation server 20 even when the signal strength of the base station 30 installed on the floor different from the measurement position is the highest and the estimated distance is the shortest, It is possible to estimate the current floor with high accuracy.
- the position estimation server 20 that realizes such a function will be described in detail.
- the search unit 232 of the position estimation server 20 extracts the base station ID included in the measurement information and associates it with the extracted base station ID.
- the base station information is searched from the storage unit 224.
- the distance evaluation unit 234 evaluates the relationship between the current position and the registered position of the base station information based on the measurement information received by the communication unit 216 and the base station information searched by the search unit 232. A specific example of an evaluation method by the distance evaluation unit 234 will be described with reference to FIG.
- FIG. 10 is an explanatory view showing a specific example of the evaluation method by the distance evaluation unit 234.
- the estimated distance (second distance) between the current position and the base station 30i (i is an arbitrary capital letter) included in the measurement information received by the communication unit 216 is d (second distance). 30i).
- the estimated distance (first distance) between the registered position Pj (j is an arbitrary number) and the base station 30i included in the base station information searched by the search unit 232 is d (30i, Pj).
- the distance evaluation unit 234 may convert the signal strength information into the estimated distance according to Equation 1.
- the distance evaluation unit 234 performs the following mathematical expression 2 expressed using the above expression.
- FIG. 11 shows a specific example of D (30i, Pj) obtained by the calculation shown in Equation 2 above.
- FIG. 11 is an explanatory diagram showing a specific example of distance evaluation by the distance evaluation unit 234.
- the distance evaluation unit 234 adds d (30i) and d (30i, Pj) related to the same base station to calculate D (30i, Pj).
- the distance evaluation unit 234 calculates the value of D (30C, P1) as 55 m by adding 30 m that is the value of d (30C) and 25 m that is the value of d (30C, P1). .
- the value of D (30y, Px) becomes relatively small. This is because the estimated distance between the registered position Px and the base station 30y and the estimated distance between the current position and the base station 30y are reduced.
- D (30w, Pv) is D (30y, Px). Expected to be larger. This is because the base station 30w is installed on a floor different from the registered position Pv or the current position, so that the estimated distance between the registered position Pv and the base station 30w or the estimated distance between the current position and the base station 30w is large. It is to become.
- the floor estimation unit 236 has a function as a selection unit that selects D (30imin, Pjmin) having the smallest value among D (30i, Pj) obtained by the distance evaluation unit 234. . Then, the floor estimation unit 236 estimates that the floor information registered in Pjmin is the current floor information.
- the floor estimation unit 236 selects D (30D, P1) (29m) having the smallest value from D (30i, Pj) shown in FIG. Then, the floor estimation unit 236 estimates that the current floor information is “fourth floor” registered at the position P1.
- the current position is the position P5 on the fourth floor, according to this embodiment, it is confirmed that the current floor information can be estimated with a high system.
- the position information estimation unit 238 receives the measurement information from the wireless terminal 40 by the communication unit 216, and the latitude and longitude of the wireless terminal 40. Is estimated. For example, the position estimation unit 238 uses the measurement information received by the communication unit 216 and the base station information registered in the storage unit 224, and calculates the current position O of the wireless terminal 40 according to the following equations 3 to 5. presume.
- Equation 3 Ai indicates the position information of the i-th base station registered in the storage unit 224. Therefore, when the position information is represented by longitude and latitude, Formula 3 is applied for each longitude and latitude.
- Wi is a weighting coefficient obtained based on the estimated distance d (30i) between the radio terminal 40 and the base station 30i estimated from the signal strength, as shown in Equation 4.
- W is the sum of the weighting coefficients as shown in Equation 5.
- the position information of the base station having a small d (30i) is largely reflected in the current position O of the wireless terminal 40.
- the position information of the base station having a large d (30i) has a small influence on the current position O of the wireless terminal 40.
- the position estimation unit 238 can reasonably estimate the current position O of the wireless terminal 40 by using Equation 3 described above.
- the position estimation method of the wireless terminal 40 is not limited to the method using Equation 3 above.
- the position of the base station that is the transmission source of the signal received by the wireless terminal 40 with the highest signal strength is the position of the wireless terminal 40. It may be estimated that there is. Further, the position at which the wireless terminal 40 becomes the center of the base station that is the transmission source of the signal received with a signal strength equal to or higher than a predetermined threshold may be estimated as the position of the wireless terminal 40.
- the floor information estimated by the floor estimation unit 236 as described above and the position information estimated by the position information estimation unit 238 are notified from the communication unit 216 to the wireless terminal 40. Then, for example, the display screen generation unit 424 of the wireless terminal 40 generates a display screen based on the floor information and the position information notified from the position estimation server 20, thereby allowing the user of the wireless terminal 40 to respond to the floor information and the position information. Information can be provided.
- the base station information management unit 220 presents the current information estimated by the position information estimation unit 238 from the measurement information.
- the position O may be registered as the position information of the base station ID.
- the base station information management unit 220 estimates the location information estimation unit 238 from the registration request information.
- the current position O may be registered as position information of the base station ID.
- the floor estimation unit 236 performs floor estimation based on the value of D (30i, Pj) obtained by the distance evaluation unit 234 has been described.
- the distance evaluation unit 234 is associated with the same base station ID among the base station information retrieved by the retrieval unit 232, and is estimated distance associated with the same floor information. You may calculate the average of the addition value with the estimated distance contained in measurement information. Then, the floor estimation unit 236 may extract D (30i, Pj) obtained by the distance evaluation unit 234 or an average value having the smallest value, and select floor information.
- the distance evaluation unit 234 is expressed by an equation of ((10 + 19) + (13 + 19)) / 2. An average value of 30.5 m is calculated.
- the floor estimation part 236 is used for calculation of the said average value, when said average value 30.5m is minimum among D (30i, Pj) obtained by the distance evaluation part 234, or an average value.
- the floor information “4th floor” corresponding to the estimated distance (10 m, 13 m) is selected.
- the distance evaluation unit 234 performs processing so that the floor estimation unit 236 preferentially selects the floor information as the number of the same floor information associated with the same base station ID increases. You may have the function as. For example, the distance evaluation unit 234 sets the distance shorter than the estimated distance associated with the floor information as d (30i, Pj) as the number of the same floor information associated with the same base station ID increases. May be treated as
- FIG. 12 is a sequence diagram showing an operation flow of the position estimation system 1 according to the present embodiment.
- the measurement unit 420 of the radio terminal 40A performs signal strength measurement on a certain floor in the building (S302), and the user operates the operation unit 432 to display the current information on the floor information registration screen. Is input (S304).
- the registration request unit 436 of the wireless terminal 40A receives the registration request information including the signal strength information obtained by the signal strength measurement or the measurement information such as the estimated distance information and the floor information input by the user as the position estimation server. 20 (S306).
- the base station information management unit 220 of the location estimation server 40 associates the measurement information and the floor information included in the registration request information and registers them in the storage unit 224 as base station information. (S308).
- the measurement unit 420 of the wireless terminal 40B performs signal strength measurement on a certain floor in the building (S312), and the user operates the operation unit 432 to input the current floor on the floor information registration screen (S314). ).
- the registration request unit 436 of the wireless terminal 40B receives the registration request information including the signal strength information obtained by the signal strength measurement or the measurement information such as the estimated distance information and the floor information input by the user as the position estimation server. 20 (S316).
- the base station information management unit 220 of the location estimation server 40 associates the measurement information and the floor information included in the registration request information and registers them in the storage unit 224 as base station information. (S318). In this way, base station information including floor information is accumulated in the storage unit 224 of the position estimation server 20.
- the measurement unit 420 of the wireless terminal 40F measures the signal strength of the wireless signal transmitted from the surrounding base station 30 (S322), and the information acquisition unit 440 receives the measurement information obtained by the signal strength measurement from the position estimation server. 20 (S324).
- the position estimation server 20 estimates the position information and floor information of the wireless terminal 40F based on the measurement information and the base station information registered in the storage unit 224 ( S326), and transmits to the wireless terminal 40F (S328).
- FIG. 13 is a flowchart showing a detailed flow of the estimation process executed in the position estimation server 20.
- the search unit 232 stores the base station information including the base station ID included in the measurement information. (S344).
- the distance evaluation unit 234 for example, between the registered position of the base station information searched by the search unit 232 and the current wireless terminal 40 by the method described in “[2-3] Estimation of floor information”.
- the distance is evaluated by calculation (S346).
- the distance evaluation unit 234 calculates D (30i, Pj) according to Equation 2.
- the floor estimation unit 236 selects floor information based on the evaluation result by the distance evaluation unit 234 (S348).
- the position information estimation unit 238 uses the measurement information received by the communication unit 216 and the base station information registered in the storage unit 224, and uses the position information indicating the latitude and longitude of the wireless terminal 40 according to Equation 3 for example. presume. Then, the floor information estimated by the floor estimation unit 236 and the position information estimated by the position information estimation unit 238 are transmitted from the communication unit 216 to the portable terminal 40 (S352).
- the position estimation server 20 can accurately estimate the floor of the wireless terminal 40.
- the base station information registered in the storage unit 224 includes floor information indicating a floor on which signal strength measurement has been performed by an arbitrary wireless terminal 40 in advance, measurement information obtained by the signal strength measurement, Is associated information. Therefore, in the present embodiment, the floor of the radio terminal 40 is added to the position information while eliminating the trouble of visually confirming each base station 30 in advance and registering the base station information of each base station 30. It is extremely effective in that it can be estimated accurately. In addition, this embodiment is advantageous in that it is not necessary to provide the wireless terminal 40 with a special sensor for floor estimation.
- the base station information management unit 220 may associate only a shortest estimated distance with a certain base station ID and certain floor information. For example, the base station information management unit 220 may delete the information of the base station ID “30C”, the floor information “4th floor”, and the estimated distance “28 m” in the example illustrated in FIG.
- the base station information management unit 220 determines that the base station ID “30C”, the floor information It is not necessary to register the information “4th floor” and the estimated distance “28 m”.
- the present invention is not limited to such an example. That is, the present invention can be realized using parameters of arbitrary dimensions obtained based on signal strength measurement.
- each step in the processing of the position estimation system 1 or the position estimation server 20 of the present specification does not necessarily have to be processed in time series in the order described as a sequence diagram or a flowchart.
- each step in the processing of the position estimation system 1 or the position estimation server 20 may include processing executed in parallel or individually (for example, parallel processing or processing by an object).
- the computer for causing the position estimation server 20 and the hardware such as the CPU 201, the ROM 202, and the RAM 203 built in the portable terminal 40 to perform the same functions as the components of the position estimation server 20 and the portable terminal 40 described above.
- Programs can also be created.
- a storage medium storing the computer program is also provided.
- a series of processes can also be realized by hardware by configuring each functional block shown in the functional block diagram of FIG. 3 with hardware.
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Abstract
Description
〔1〕本実施形態にかかる位置推定システムの概要
〔2〕本実施形態にかかる位置推定システムの詳細な説明
〔2-1〕位置推定サーバのハードウェア構成
〔2-2〕フロア情報の登録
〔2-3〕フロア情報の推定
〔3〕本実施形態にかかる位置推定システムの動作
〔4〕まとめ
まず、図1および図2を参照し、本実施形態にかかる位置推定システム1について概略的に説明する。
ここで、位置情報としては、緯度、経度などの、高さ方向を含まない2次元位置を示す情報があげられる。したがって、ある建造物内に存在する無線端末40は、位置推定サーバ20から、該建造物の位置情報、または、位置推定サーバ20において位置情報と建造物名が対応付けて記憶されている場合には該建造物の建造物名を取得することができる。
(1)各建造物の各フロアと高度の関係をデータベース化しておく必要、
(2)高度の推定誤差が各フロアの高さよりも十分に少ない(例えば1m程度)である必要、
があった。
本実施形態は、フロア情報を含む基地局情報を位置推定サーバ20が登録する登録段階、
および、登録されている基地局情報に基づいて位置推定サーバ20が無線端末40のフロア情報を推定する推定段階、に大別される。そこで、以下では、本実施形態にかかる位置推定システム1に含まれる位置推定サーバ20のハードウェア構成を説明した後に、フロア情報の登録段階および推定段階の各々について具体的に説明する。
図2は、位置推定サーバ20のハードウェア構成を示したブロック図である。位置推定サーバ20は、CPU(Central Processing Unit)201と、ROM(Read Only Memory)202と、RAM(Random Access Memory)203と、ホストバス204と、ブリッジ205と、外部バス206と、インタフェース207と、入力装置208と、出力装置210と、ストレージ装置(HDD)211と、ドライブ212と、通信装置215とを備える。
次に、図3~図8を参照し、本実施形態にかかる位置推定システム1におけるフロア情報の登録について説明する。
続いて、図3、および図9~図11を参照し、本実施形態にかかる位置推定システム1におけるフロア情報の推定について説明する。
また、上記では、距離評価部234により得られたD(30i,Pj)の値に基づいてフロア推定部236がフロア推定を行なう例を説明したが、本発明はかかる例に限定されない。例えば、距離評価部234は、検索部232により検索された基地局情報のうちで、同一の基地局IDと対応付けられており、かつ、同一のフロア情報と対応付けられている推定距離と、測定情報に含まれる推定距離との加算値の平均を演算してもよい。そして、フロア推定部236は、距離評価部234により得られたD(30i,Pj)、または平均値のうちで値が最小であるものを抽出し、フロア情報を選択してもよい。
以上、図3~図11を参照して本実施形態にかかる位置推定システム1の機能を説明した。続いて、図12および図13を参照し、本実施形態にかかる位置推定システム1の動作を説明する。
以上説明したように、本実施形態によれば、無線端末40における信号強度測定により得られた測定情報と、位置推定サーバ20の記憶部224に登録されている基地局情報と、に基づいて位置推定サーバ20が無線端末40のフロアを適確に推定することができる。ここで、記憶部224に登録されている基地局情報は、事前に任意の無線端末40により信号強度測定が行なわれたフロアを示すフロア情報と、当該信号強度測定により得られた測定情報と、が対応付けられた情報である。したがって、本実施形態においては、事前に各基地局30を目視により確認して各基地局30の基地局情報を登録するという手間を排除しつつ、無線端末40のフロアを位置情報に加えて適確に推定することができる点で極めて効果的である。また、本実施形態においては、無線端末40にフロア推定のための特別なセンサを設ける必要が無い点でも有利である。
Claims (9)
- 建造物における一区画を示す区画情報、前記一区画に存在する無線端末における周囲の基地局から送信された無線信号の信号強度測定により取得される第1の測定情報、および前記基地局を識別する基地局識別情報、を対応付けて記憶している記憶部と;
任意の無線端末から、前記任意の無線端末における無線信号の信号強度測定により取得された1または2以上の第2の測定情報と、前記任意の無線端末により受信された無線信号の送信元の基地局を示し、前記1または2以上の第2の測定情報の各々と対応付けられた1または2以上の基地局識別情報とを受信する受信部と;
前記受信部により受信された前記1または2以上の基地局識別情報と対応付けられている1または2以上の第1の測定情報を前記記憶部から検索する検索部と;
前記受信部により受信された前記1または2以上の第2の測定情報、および前記検索部により検索された前記1または2以上の第1の測定情報に基づいて、前記1または2以上の第1の測定情報のいずれかに対応付けられている区画情報を選択する選択部と;
前記選択部により選択された区画情報を前記任意の無線端末に送信する送信部と;
を備える、情報処理装置。 - 前記情報処理装置は、
前記検索部により検索された前記1または2以上の第1の測定情報と、前記受信部により受信された前記1または2以上の第2の測定情報のうちで前記1または2以上の第1の測定情報と同一の基地局識別情報が対応付けられている第2の測定情報とに基づいて、前記1または2以上の第1の測定情報および前記1または2以上の第2の測定情報の取得位置の関係を評価する評価部をさらに備え、
前記選択部は、前記評価部による評価結果に基づき、前記取得位置の関係が相対的に良好な第1の測定情報および第2の測定情報の組を構成する第1の測定情報と対応付けられている区画情報を選択する、請求項1に記載の情報処理装置。 - 前記評価部は、
前記検索部により検索された前記1または2以上の第1の測定情報ごとに、前記第1の測定情報に基づき、前記第1の測定情報の取得位置と前記第1の測定情報に対応する基地局との間の第1の距離を演算し、
前記受信部により受信された前記1または2以上の第2の測定情報ごとに、前記第2の測定情報に基づき、前記第2の測定情報の取得位置と前記第2の測定情報に対応する基地局との間の第2の距離を演算し、
同一の基地局識別情報と対応付けられている第1の測定情報および第2の測定情報に基づいて算出された第1の距離および第2の距離を加算し、
前記選択部は、
前記評価部により得られる第2の距離との加算値が最小であった第1の距離に対応する区画情報を選択する、請求項2に記載の情報処理装置。 - 前記評価部は、同一の基地局識別情報および同一の区画情報と対応付けられている第1の測定情報が前記検索部により複数検索された場合、前記同一の基地局識別情報および同一の区画情報と対応付けられている第1の測定情報および第2の測定情報に基づいて算出した第1の距離および第2の距離の加算値の平均値を演算し、
前記選択部は、前記平均値または前記加算値が最小となった前記評価部による演算にかかる第1の測定情報に対応する区画情報を選択する、請求項3に記載の情報処理装置。 - 前記情報処理装置は、
同一の基地局識別情報と対応付けられている数が多い区画情報ほど、前記選択部により優先的に選択されるよう処理する優先処理部をさらに備える、請求項1~4に記載の情報処理装置。 - コンピュータを、
任意の無線端末から、前記任意の無線端末における無線信号の信号強度測定により取得された1または2以上の第2の測定情報と、前記任意の無線端末により受信された無線信号の送信元の基地局を示し、前記1または2以上の第2の測定情報の各々と対応付けられた1または2以上の基地局識別情報とを受信する受信部と;
建造物における一区画を示す区画情報、前記一区画に存在する無線端末における周囲の基地局から送信された無線信号の信号強度測定により取得される第1の測定情報、および前記基地局を識別する基地局識別情報、を対応付けて記憶している記憶媒体から、前記受信部により受信された前記1または2以上の基地局識別情報と対応付けられている1または2以上の第1の測定情報を検索する検索部と;
前記受信部により受信された前記1または2以上の第2の測定情報、および前記検索部により検索された前記1または2以上の第1の測定情報に基づいて、前記1または2以上の第1の測定情報のいずれかに対応付けられている区画情報を選択する選択部と;
前記選択部により選択された区画情報を前記任意の無線端末に送信する送信部と;
として機能させるための、プログラム。 - 任意の無線端末から、前記任意の無線端末における無線信号の信号強度測定により取得された1または2以上の第2の測定情報と、前記任意の無線端末により受信された無線信号の送信元の基地局を示し、前記1または2以上の第2の測定情報の各々と対応付けられた1または2以上の基地局識別情報とを受信する受信ステップと;
建造物における一区画を示す区画情報、前記一区画に存在する無線端末における周囲の基地局から送信された無線信号の信号強度測定により取得される第1の測定情報、および前記基地局を識別する基地局識別情報、を対応付けて記憶している記憶媒体から、前記受信ステップにおいて受信された前記1または2以上の基地局識別情報と対応付けられている1または2以上の第1の測定情報を検索する検索ステップと;
前記受信ステップにおいて受信された前記1または2以上の第2の測定情報、および前記検索ステップにより検索された前記1または2以上の第1の測定情報に基づいて、前記1または2以上の第1の測定情報のいずれかに対応付けられている区画情報を選択する選択ステップと;
前記選択ステップにおいて選択された区画情報を前記任意の無線端末に送信する送信ステップと;
を含む、情報処理方法。 - 基地局から送信された無線信号を受信する無線信号受信部、
前記無線信号受信部により受信された前記無線信号の信号強度測定を行なう測定部、および、
前記測定部による前記無線信号の信号強度測定により得られる1または2以上の第2の測定情報と、前記無線信号の送信元の基地局を示し、前記1または2以上の第2の測定情報の各々と対応付けられた1または2以上の基地局識別情報とを送信する情報送信部、
を備える無線端末と;
建造物における一区画を示す区画情報、前記一区画に存在する任意の無線端末における周囲の基地局から送信された無線信号の信号強度測定により取得される第1の測定情報、および前記基地局を識別する基地局識別情報、を対応付けて記憶している記憶部、
前記無線端末の前記情報送信部から、前記1または2以上の第2の測定情報と、前記1または2以上の基地局識別情報とを受信する受信部、
前記受信部により受信された前記1または2以上の基地局識別情報と対応付けられている1または2以上の第1の測定情報を前記記憶部から検索する検索部、
前記受信部により受信された前記1または2以上の第2の測定情報、および前記検索部により検索された前記1または2以上の第1の測定情報に基づいて、前記1または2以上の第1の測定情報のいずれかに対応付けられている区画情報を選択する選択部、および、
前記選択部により選択された区画情報を前記無線端末に送信する送信部、
を備える情報処理装置と;
を備える情報処理システム。 - 基地局から送信された無線信号を受信する無線信号受信部、
前記無線信号受信部により受信された無線信号の信号強度測定を行なう測定部、
建造物における一区画を示す区画情報がユーザにより入力される入力部、および、
前記測定部による無線信号の信号強度測定により得られる1または2以上の第2の測定情報と、前記無線信号の送信元の基地局を示し、前記1または2以上の第2の測定情報の各々と対応付けられた前記1または2以上の基地局識別情報と、前記入力部に入力された区画情報と、を送信する情報送信部、
を備える無線端末と;
前記無線端末の前記情報送信部から、前記1または2以上の第2の測定情報と、前記1または2以上の基地局識別情報と、前記区画情報とを受信する受信部、
記憶部、および、
前記受信部により受信された、前記1または2以上の第2の測定情報の各々と、前記第2の測定情報と対応付けられた前記1または2以上の基地局識別情報と、前記区画情報とを対応付けて前記記憶部に記録する記録部、
を備える情報処理装置と;
を備える情報処理システム。
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AU2009237031A AU2009237031B2 (en) | 2008-04-18 | 2009-04-07 | Information processing device, program, information processing method, and information processing system |
RU2010140434/07A RU2486697C2 (ru) | 2008-04-18 | 2009-04-07 | Устройство обработки информации, программа, способ обработки информации и система обработки информации |
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- 2009-04-07 RU RU2010140434/07A patent/RU2486697C2/ru not_active IP Right Cessation
- 2009-04-07 AU AU2009237031A patent/AU2009237031B2/en not_active Ceased
- 2009-04-07 EP EP09733101.1A patent/EP2268066B1/en not_active Not-in-force
- 2009-04-07 WO PCT/JP2009/057105 patent/WO2009128364A1/ja active Application Filing
- 2009-04-07 CN CN200980112133.5A patent/CN101983515B/zh not_active Expired - Fee Related
- 2009-04-07 CN CN201410165459.7A patent/CN103954928B/zh not_active Expired - Fee Related
- 2009-04-07 BR BRPI0911123A patent/BRPI0911123A2/pt not_active Application Discontinuation
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JP2015050481A (ja) * | 2013-08-29 | 2015-03-16 | Kddi株式会社 | 判定装置並びに判定方法、基地局装置、及びプログラム |
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US10536894B2 (en) | 2015-04-30 | 2020-01-14 | Mist Systems, Inc. | Methods and apparatus relating to the use of real and/or virtual beacons |
US10932141B2 (en) | 2015-04-30 | 2021-02-23 | Juniper Networks, Inc. | Methods and apparatus for generating,transmitting and/or using beacons |
US11076341B2 (en) | 2015-04-30 | 2021-07-27 | Juniper Networks, Inc. | Methods and apparatus relating to the use of real and/or virtual beacons |
US11368856B2 (en) | 2015-04-30 | 2022-06-21 | Juniper Networks, Inc. | Methods and apparatus for generating,transmitting and/or using beacons |
US11564147B2 (en) | 2015-04-30 | 2023-01-24 | Juniper Networks, Inc. | Methods and apparatus relating to the use of real and/or virtual beacons |
US12047863B2 (en) | 2015-04-30 | 2024-07-23 | Juniper Networks, Inc. | Methods and apparatus relating to the use of real and/or virtual beacons |
US12058535B2 (en) | 2015-04-30 | 2024-08-06 | Juniper Networks, Inc. | Methods and apparatus for generating, transmitting and/or using beacons |
Also Published As
Publication number | Publication date |
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US8903421B2 (en) | 2014-12-02 |
US20120157126A1 (en) | 2012-06-21 |
EP2268066A1 (en) | 2010-12-29 |
US20110045846A1 (en) | 2011-02-24 |
RU2486697C2 (ru) | 2013-06-27 |
BRPI0911123A2 (pt) | 2015-10-06 |
US20140171110A1 (en) | 2014-06-19 |
RU2010140434A (ru) | 2012-04-10 |
US8229465B2 (en) | 2012-07-24 |
HK1153893A1 (en) | 2012-04-05 |
JP2009260811A (ja) | 2009-11-05 |
EP2268066B1 (en) | 2013-06-05 |
US9544866B2 (en) | 2017-01-10 |
CN103954928A (zh) | 2014-07-30 |
AU2009237031B2 (en) | 2014-02-13 |
EP2268066A4 (en) | 2011-04-27 |
US8700058B2 (en) | 2014-04-15 |
CN101983515B (zh) | 2014-06-04 |
JP4840395B2 (ja) | 2011-12-21 |
US20150057032A1 (en) | 2015-02-26 |
CN101983515A (zh) | 2011-03-02 |
CN103954928B (zh) | 2016-08-24 |
AU2009237031A1 (en) | 2009-10-22 |
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