JP2012073072A - Mobile terminal, mobile communication system, program and control method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To efficiently display data acquired through two positioning systems.SOLUTION: First positioning means 11 acquires first positional information showing the position of the own device with GPS system. Second positioning means 12 acquires second positional information showing the position of the own device by a system with a positioning server 20. With the second system, the accuracy of the positional information is lower than that of the first system and the time required for acquiring the positional information is shorter than that of the first system. In this example, the second positioning means 12 acquires the second positional information by using the positional information transmitted by the positioning server 20. Facility information acquisition means 13 acquires multiple pieces of facility information for identifying the facilities from an information providing server 30 in a network 40 according to the second positional information. Rearrangement means 14 rearranges the order of the multiple pieces of facility information acquired by the facility information acquisition means 13 based on the first positional information. Display means 15 displays the multiple pieces of facility information whose order was rearranged by the rearrangement means 14.

Description

  The present invention relates to a technique for displaying information according to the current position of a mobile terminal.

  A technique for acquiring and displaying information corresponding to a current location from a network in a mobile terminal such as a mobile phone is known. Patent Document 1 discloses that GPS positioning and base station positioning are simultaneously performed, and position information obtained from each is processed. For example, Patent Document 1 discloses that when position information obtained by a base station is acquired, a map suitable for the position information is displayed, and position data obtained by GPS is displayed on the map.

JP 2003-284121 A

According to Patent Document 1, there is a problem in that there is a process of performing information acquisition according to the positioning result by GPS, information acquisition according to the positioning result by the base station, and information acquisition twice, and the efficiency is low.
In contrast, the present invention provides a technique for performing display based on a more accurate current position while acquiring data more efficiently by two positioning methods.

  The present invention provides the first positioning means for acquiring the first position information indicating the position of the device by the first method, the accuracy of the position information is lower than that of the first method, and the time required for acquiring the position information. A second positioning unit that acquires second position information indicating the position of the own device and a plurality of facility information including a facility name for identifying the facility is transmitted from the server on the network to the second position by using the short second method. Facility information acquisition means to be acquired according to information, rearrangement means for performing processing for rearranging the order of a plurality of facility information acquired by the facility information acquisition means based on the first position information, and the rearrangement means A mobile terminal having display means for displaying the plurality of facility information rearranged in order according to the above is provided.

  In a preferred aspect, the rearranging means may rearrange the plurality of facility information in order from the one located near the position of the own device indicated by the first position information as the processing.

  In another preferable aspect, the first positioning unit may repeatedly acquire the first position information, and the rearranging unit may perform the process when new first position information is acquired.

  In addition, the present invention is a mobile communication system having a mobile terminal, a positioning server, and an information providing server, wherein the mobile terminal obtains first position information indicating a position of the own device by a first method. Positioning means, and second positioning means for acquiring second position information indicating the position of the own apparatus by a second method in which the accuracy of the position information is lower than that of the first method and the time required to acquire the position information is shorter The facility information acquisition means for acquiring a plurality of facility information in accordance with the second position information from a server on the network, and the order of the plurality of facility information acquired by the facility information acquisition means, the first position information Reordering means for performing reordering based on the information, and display means for displaying the plurality of facility information rearranged by the reordering means, wherein the positioning server is an identifier of the mobile terminal. And a positioning storage means storing a database that records base station information indicating a position related to a base station with which the mobile terminal is communicating, and a database stored in the positioning storage means, to the identifier of the mobile terminal Positioning transmission means for transmitting corresponding base station information to the mobile terminal, and the information providing server stores facility information including a facility name including a facility name and a database in which position information corresponding to the facility information is recorded. Using the storage means, the position information acquisition means for acquiring the second position information from the mobile communication terminal, and the database stored in the facility information storage means, the position indicated by the second position information is the center. Extracting means for extracting facility information of a plurality of facilities located within a certain range, and transmitting the extracted plurality of facility information to the mobile terminal To provide a mobile communication system; and a facility information transmission unit.

  Furthermore, the present invention provides the first positioning means for acquiring the first position information indicating the position of the own device by the first method, and the position information is less accurate than the first method, and the position information is acquired. The first positioning means acquires the first position information in a mobile terminal having second positioning means for acquiring second position information indicating the position of the own device and a control means by the second method having a short time. A step of acquiring the second position information by the second positioning means, and a plurality of pieces of facility information for identifying the facilities from the server on the network to the second position information by the control means. Acquiring in response, the control means performing a process of rearranging the order of the plurality of facility information based on the first position information, and the control means including the plurality of the processes in which the process has been performed. Show facility information It provides a program for executing the step of displaying on the stage.

  Furthermore, the present invention provides the first positioning means for acquiring the first position information indicating the position of the own device by the first method, and the position information is less accurate than the first method, and the position information is acquired. A mobile terminal control method comprising: second positioning means for acquiring second position information indicating the position of the own device by a second method having a short time; and a control means, wherein the first positioning means includes the first positioning means. A step of acquiring one position information, a step of acquiring the second position information by the second positioning means, and a plurality of pieces of facility information for identifying the facility from the server on the network by the control means. Acquiring in accordance with second position information, performing a process in which the control means rearranges the order of the plurality of facility information based on the first position information, and performing the process in the control means. The above plural To provide a control method and a step of displaying on the display means facility information.

  According to the present invention, it is possible to acquire information more efficiently and to obtain a more accurate current as compared to a configuration that displays facility information obtained using current location information obtained by a single positioning method. Display based on position can be performed.

1 is a diagram illustrating an outline of a mobile communication system 1 according to an embodiment. 2 is a diagram illustrating a functional configuration of a mobile terminal 10. FIG. 2 is a diagram illustrating a functional configuration of a positioning server 20. FIG. 2 is a diagram illustrating a functional configuration of an information providing server 30. FIG. 2 is a diagram illustrating a hardware configuration of a mobile terminal 10. FIG. 3 is a sequence chart showing the operation of the mobile communication system 1. It is a figure which illustrates the data currently recorded on the position registration database. It is a figure which illustrates the data currently recorded on the base station database. It is a figure which illustrates the data currently recorded on the facility information database. It is a figure which illustrates screen display. It is a figure which shows another example of a screen display. 10 is a flowchart showing an operation of the mobile terminal 10 according to Modification 1.

1. Configuration FIG. 1 is a diagram showing an outline of a mobile communication system 1 according to an embodiment of the present invention. The mobile communication system 1 includes a mobile terminal 10, a positioning server 20, an information providing server 30, a network 40, and a GPS (Global Positioning System) satellite 50. Although the mobile communication system 1 has a plurality of mobile terminals 10 and a plurality of GPS satellites 50, only one is shown here for simplicity. The network 40 is a mobile communication network and has a radio base station. The mobile terminal 10 can communicate with the network 40 via a radio base station. The positioning server 20 and the information providing server 30 are devices that constitute a part of the network 40, but are illustrated separately from the network 40 for the sake of explanation here. The mobile terminal 10 communicates with the positioning server 20 or the information providing server 30 via the network 40 including the radio base station. Further, the mobile terminal 10 can receive a GPS signal transmitted from the GPS satellite 50. In this example, the mobile terminal 10 is a mobile phone.

  FIG. 2 is a diagram illustrating a functional configuration of the mobile terminal 10. The mobile terminal 10 includes first positioning means 11, second positioning means 12, facility information acquisition means 13, rearrangement means 14, and display means 15. The mobile terminal 10 is a client in the mobile communication system 1 and can communicate with the positioning server 20 and the information providing server 30 via the network 40.

  The 1st positioning means 11 acquires the 1st position information which shows the position of an own apparatus by a GPS system (an example of a 1st system). The 2nd positioning means 12 acquires the 2nd positional information which shows the position of an own apparatus by the system (an example of a 2nd system) using the positioning server 20. FIG. The second method is a method in which the accuracy of the position information is lower than that of the first method and the time required for acquiring the position information is shorter. In this example, the second positioning means 12 acquires the second position information using the positioning information transmitted from the positioning server 20. The facility information acquisition unit 13 acquires a plurality of facility information related to the facility from the information providing server 30 on the network 40 according to the second position information. The rearrangement unit 14 rearranges the order of the plurality of facility information acquired by the facility information acquisition unit 13 based on the first position information. The display means 15 displays a plurality of facility information whose order has been rearranged by the rearrangement means 14.

  FIG. 3 is a diagram illustrating a functional configuration of the positioning server 20. The positioning server 20 includes a storage unit 21, a request acquisition unit 22, an extraction unit 23, and a transmission unit 24. The storage means 21 stores a location registration database 211 and a base station database 212. The location registration database 211 is a database in which information indicating the current location of the mobile terminal 10 is recorded. The base station database 212 is a database that records information about the base station such as the position of the base station. The request acquisition unit 22 acquires a positioning request from the mobile terminal 10 (a transmission request for positioning information from the mobile terminal 10). The positioning request includes the terminal identifier of the mobile terminal 10. The request acquisition unit 22 acquires a positioning request from the mobile terminal 10, for example. The extracting unit 23 extracts information indicating the current position of the mobile terminal 10 from the location registration database 211 stored in the storage unit 21 in response to the positioning request. The transmission unit 24 transmits a positioning response corresponding to information indicating the current position of the mobile terminal 10 to the mobile terminal 10 that is the transmission source of the positioning request.

  FIG. 4 is a diagram illustrating a functional configuration of the information providing server 30. The information providing server 30 includes a storage unit 31, a position information acquisition unit 32, an extraction unit 33, and a transmission unit 34. The storage unit 31 stores a facility information database 311. The facility information database 311 stores a plurality of data sets including facility information and position information corresponding to the facility information. The facility information is information about the facility and includes at least the facility name. Here, the “facility” is a tangible object that can be displayed on a map, and includes, for example, buildings such as buildings, towers, and condominiums, stores in the building, and signs on the map such as intersections and roads. The position information acquisition unit 32 acquires second position information from the mobile terminal 10. The extraction unit 33 extracts a plurality of facility information satisfying a condition having a relationship with the position indicated by the second position information from the facility information database 311. This condition is, for example, that the condition is associated with the same base station identifier as the base station identifier indicated by the second position information. The transmission unit 34 transmits the extracted plurality of facility information to the mobile terminal 10.

  FIG. 5 is a diagram illustrating a hardware configuration of the mobile terminal 10. The mobile terminal 10 includes a control unit 110, a storage unit 120, a GPS positioning unit 130, an input unit 140, a display unit 150, and a communication unit 160. The control unit 110 controls elements of the mobile terminal 10. The control unit 110 includes a CPU (Central Processing Unit) 111, a RAM (Random Access Memory) 112, and a ROM (Read Only Memory) 113. The ROM 113 is a non-volatile storage device that stores programs and data. The RAM 112 is a volatile storage device. The CPU 111 is an arithmetic device that executes a program using the RAM 112. The storage unit 120 is a non-volatile storage device that stores data and programs, and includes, for example, a flash memory or an HDD (Hard Disk Drive). The GPS positioning unit 130 includes a GPS receiver that receives a signal transmitted from the GPS satellite 50 and calculates the current position of the own device based on the received signal. The input unit 140 is a device for inputting commands or data to the control unit 110 and includes, for example, a touch panel or a keypad. The display unit 150 is a device that displays characters, images, and the like under the control of the control unit 110, and includes, for example, an LCD or an organic EL display. The communication unit 160 is a device that communicates with the network 40 via a base station, and includes, for example, an antenna and an amplifier. In this example, the storage unit 120 stores a map information display program for acquiring and displaying facility information. The control unit 110 executes the map information display program, so that the function of FIG. The control unit 110 executing the map information display program is an example of the second positioning unit 12, the facility information acquisition unit 13, and the rearrangement unit 14. The GPS positioning unit 130 controlled by the control unit 110 is an example of the first positioning unit 11. The display unit 150 controlled by the control unit 110 is an example of the display unit 15.

  The positioning server 20 and the information providing server 30 are computer devices each having a control unit, a storage unit, and a communication unit (all not shown). The positioning server 20 and the information providing server 30 each store a server program for operating as a server in a storage unit. In the positioning server 20, the storage unit is an example of the storage unit 21. The control unit executing the server program is an example of the request acquisition unit 22, the extraction unit 23, and the transmission unit 24. In the information providing server 30, the storage unit is an example of the storage unit 31. The control unit executing the server program is an example of the position information acquisition unit 32, the extraction unit 33, and the transmission unit 34.

2. Operation FIG. 6 is a sequence chart showing the operation of the mobile communication system 1. In this example, before the start of the sequence chart of FIG. 6, the map information display program is started in the mobile terminal 10 and is in a state of waiting for a user instruction input. Among the following processes, the process of the mobile terminal 10 is based on the map information display program. In step S101, the mobile terminal 10 receives a display request for information around the current location. Specifically, the user inputs a display request for information around the current location via the input unit 140. When receiving the display request, the control unit 110 instructs the GPS positioning unit 130 to start positioning. In response to this instruction, the GPS positioning unit 130 starts positioning (step S102). The GPS positioning unit 130 performs positioning by receiving signals from a plurality of GPS satellites 50 and calculating the position of the own device using the received signals. The positioning performed by the GPS positioning unit 130 is referred to as “GPS positioning”. Since positioning takes some time, it is not completed immediately. Further, the control unit 110 transmits a positioning request to the positioning server 20 via the communication unit 160 (step S103). The positioning request includes the terminal identifier of the mobile terminal 10.

  FIG. 7 is a diagram illustrating data recorded in the location registration database 211. In this example, a base station identifier for identifying a base station with which the mobile terminal 10 is communicating is used as information indicating the current position of the mobile terminal 10. In the location registration database 211, a plurality of data sets including a terminal identifier and a base station identifier corresponding to the terminal identifier are recorded. The terminal identifier is an identifier that uniquely identifies the mobile terminal 10 in the mobile communication system 1, for example, a telephone number or a terminal identification number. The base station identifier is an identifier that uniquely identifies a base station in the mobile communication system 1.

  FIG. 8 is a diagram illustrating data recorded in the base station database 212. In this example, the base station database 212 records a plurality of attribute information indicating base station identifiers and attributes of the base stations. In this example, the base station coordinates, the base station name, and the base station cell radius are used as the attribute information. The coordinates of the base station are coordinates for specifying the position of the base station, and are represented by latitude and longitude in this example. The place name of the base station is a character string used to display the current position of the mobile terminal 10, and represents a rough place where the base station is installed. The cell radius is a parameter for specifying a range of cells formed by the base station.

  When receiving the positioning request from the mobile terminal 10, the control unit of the positioning server 20 extracts the base station identifier corresponding to the terminal identifier included in the positioning request from the location registration database 211. Further, the control unit extracts attribute information corresponding to the base station identifier from the base station database 212.

  Refer to FIG. 6 again. The control unit of the positioning server 20 transmits the extracted base station identifier (an example of second position information) and attribute information as a positioning response to the mobile terminal 10 that is the source of the positioning request (step S104). The position of the mobile terminal 10 indicated by the information included in the positioning response is referred to as “base station positioning result”, and obtaining the “base station positioning result” is referred to as “base station positioning”. When receiving the positioning response, the control unit 110 of the mobile terminal 10 transmits an information request for requesting facility information to the information providing server 30 via the communication unit 160 (step S105). The information request includes the terminal identifier of the mobile terminal 10 and the base station identifier included in the received positioning response.

  FIG. 9 is a diagram illustrating data recorded in the facility information database 311. In this example, each data set includes an ID, facility information, location information, and a base station identifier. The ID is an identifier for specifying each data set. Facility information is information about a facility, and in this example, includes facility name, address, and telephone number. For example, in the data set with ID = 1, the facility name is “Tokyo Station”, the address is “1 Marunouchi 1-chome, Chiyoda-ku”, and the telephone number is “03-XXXX-XXXX”. The location information includes the latitude and lightness of the facility. For example, “Tokyo Station” is shown to be located at 35.681361 ° north latitude and 139.76662 ° east longitude. The base station identifier is an identifier of a base station having jurisdiction over a cell corresponding to the location of the facility. For example, “Tokyo Station” is shown to be located in the cell of the base station with the base station identifier “B1”.

  When the information request is received from the mobile terminal 10, the control unit of the information providing server 30 extracts facility information and position information corresponding to the same base station identifier as the base station identifier included in the information request from the facility information database 311. For example, when the base station identifier included in the information request is “B1”, the facility information and the position information with ID = 1, 2, and 3 are extracted.

Refer to FIG. 6 again. The control unit of the information providing server 30 transmits a data set including the extracted facility information and position information to the mobile terminal 10 that is the transmission source of the information request as a response to the information request (step S106).
When the information response is received, the control unit 110 of the mobile terminal 10 performs display using the facility information and the position information included in the data set received as the information response (step S107).

  FIG. 10A is a diagram illustrating a screen display in step S107. FIG. 10A shows an example in which facility information is plotted on a map. This map is displayed around the position of the base station indicated by the information included in the positioning response. On the map, the current position of the mobile terminal 10 is shown as an area (range) having a certain shape and size. Furthermore, the acquired facility information is plotted on this map. The processing for displaying this screen is performed as follows, for example. The control unit 110 calculates a circle having a radius indicated by the cell radius included in the positioning response with the position indicated by the coordinates of the base station included in the positioning response as the center. For this calculation, the cell radius of the base station included in the positioning response is used. The control unit 110 controls the display unit 150 to draw the calculated circle on the map. Furthermore, the control unit 110 controls the display unit 150 to display the facility information included in the data set at the position indicated by the position information included in the data set received as the information response. For example, a pop-up “Tokyo Station” is displayed at a position corresponding to 35.681361 ° north latitude and 139.76662 ° east longitude on the map.

  FIG. 11A is a diagram showing another example of the screen display in step S107. FIG. 11A shows an example in which facility information is displayed in a list format. This screen shows a character string indicating the current location (in this example, “near Hibiya”) and facility information included in the data set received as an information response. The processing for displaying this screen is performed as follows, for example. The control unit 110 controls the display unit 150 to display the place name “Near Hibiya” of the base station included in the positioning response. The control unit 110 controls the display unit 150 so that the facility information included in the data set received as the information response is arranged and displayed according to the order of the ID numbers. In this example, Yurakucho Station, Hibiya Park, and Tokyo Station are displayed in this order from the top.

  The map in FIG. 10A and the list in FIG. 11A may be displayed on the same screen. That is, the screen may be divided into two areas, a map may be displayed in one area, and a list may be displayed in the other area. Alternatively, the map and the list may be switched according to a user instruction via the input unit 140.

  Refer to FIG. 6 again. Control unit 110 determines whether GPS positioning has been completed. Whether or not GPS positioning is completed is determined based on a signal output from the GPS positioning unit 130, for example. When it is determined that the GPS positioning is not completed, the control unit 110 waits until the GPS positioning is completed. When it is determined that the GPS positioning has been completed, the control unit 110 acquires a positioning result (an example of first position information) from the GPS positioning unit 130 (step S108). The positioning result acquired from the GPS positioning unit 130 is referred to as “GPS positioning result”. The GPS positioning result includes information (for example, latitude / longitude) indicating the position of the mobile terminal 10.

  When the positioning result is acquired from the GPS positioning unit 130, the control unit 110 rearranges the facility information according to the positioning result (step S109). Further, the control unit 110 controls the display unit 150 to update the display based on the rearranged facility information. Details are as follows. The control unit 110 calculates the distance between the position of the mobile terminal 10 indicated by the positioning result and the position of the facility indicated by the facility information for each of the plurality of facility information. The control unit 110 rearranges the plurality of facility information according to the calculated distance. More specifically, the control unit 110 rearranges the plurality of facility information in the order from the shortest calculated distance. For example, in the order of Tokyo Station, Yurakucho Station, and Hibiya Park from the one closest to the mobile terminal 10, the control unit 110 rearranges the facility information in this order. The control part 110 memorize | stores order about each facility information. Furthermore, the control part 110 displays several facility information according to the order memorize | stored. When the facility information in which the order is rearranged is displayed, the mobile communication system 1 ends the process of FIG.

FIG. 10B is a diagram illustrating an example of a map display after the GPS positioning is completed. In this example, the current position of the mobile terminal 10 is indicated by a point.
FIG. 11B is a diagram illustrating an example of a list display after the GPS positioning is completed. A plurality of pieces of facility information are displayed in the order after rearrangement.

  According to the mobile communication system 1, the facility information obtained by using the base station positioning result is first displayed, and the display is updated after the GPS positioning is completed. Compared with a configuration in which display is performed for the first time after GPS positioning is completed, or a configuration in which facility information is acquired using a result of GPS positioning, the mobile communication system 1 can reduce the waiting time for display of the user. it can. The mobile communication system 1 rearranges the facility information obtained based on the current position information with high speed and low accuracy based on the current position information with low speed and high accuracy. This makes it possible to obtain information more efficiently and based on a more accurate current position compared to a configuration that displays facility information obtained using current position information obtained by a single positioning method. Display can be performed.

3. Other Embodiments The present invention is not limited to the above-described embodiments, and various modifications can be made. Hereinafter, some modifications will be described. Two or more of the following modifications may be used in combination.

3-1. Modification 1
FIG. 12 is a flowchart showing the operation of the mobile terminal 10 according to the first modification. In the above-described embodiment, the mobile terminal 10 performs GPS positioning once in a series of processes. However, in the first modification, the mobile terminal 10 repeatedly performs GPS positioning. The flow in FIG. 12 is started, for example, when the mobile terminal 10 receives a display request for information around the current location described in step S101.

  In step S201, the control unit 110 of the mobile terminal 10 controls the GPS positioning unit 130 so as to start GPS positioning. In step S <b> 202, the control unit 110 transmits a positioning request to the positioning server 20. In step S <b> 203, the control unit 110 receives a positioning response to the positioning request from the positioning server 20. In step S <b> 204, the control unit 110 transmits an information request to the information providing server 30. In step S205, the control unit 110 receives an information response to the information request. In step S206, the control unit 110 displays facility information according to the base station positioning result. In step S207, control unit 110 determines whether GPS positioning has been completed. When it is determined that the GPS positioning has ended (step S207: YES), the control unit 110 moves the process to step S208. When it is determined that the GPS positioning has not ended (step S207: NO), the control unit 110 repeats the process of step S207. In step S208, control unit 110 determines whether GPS positioning has been successful. Whether or not the GPS positioning is successful is determined by whether or not an error signal is input from the GPS positioning unit 130, for example. When it is determined that the GPS positioning is successful (step S208: YES), the control unit 110 shifts the processing to step S209. When it is determined that the GPS positioning has not been successful (step S208: NO), the control unit 110 shifts the processing to step S211.

  In step S209, control unit 110 determines whether the GPS positioning result is within the range of the base station positioning result. That is, the control unit 110 determines whether the position of the mobile terminal 10 indicated by the GPS positioning result is within the range indicated by the base station positioning result (whether it is inside the cell). When it is determined that the GPS positioning result is within the range of the base station positioning result (step S209: YES), the control unit 110 moves the process to step S210. When it is determined that the GPS positioning result is out of the range of the base station positioning result (step S209: NO), the control unit 110 shifts the process to step S202.

  In step S210, the control unit 110 rearranges the facility information according to the GPS positioning result. This process is as described in step S109, FIG. 10 (B), and FIG. 11 (B).

  In step S211, the control unit 110 controls the GPS positioning unit 130 to start GPS positioning. Hereinafter, the control unit 110 repeatedly performs the processing from step S207 to step S211 until the interruption of the processing is instructed by a predetermined interrupt processing.

  According to the first modification, the facility information is not reacquired as long as the GPS positioning result is within the range of the base station positioning result, that is, as long as the GPS positioning result moves within the cell of the same base station. Thereby, compared with the structure which reacquires facility information by a GPS positioning result, the communication amount with a network can be reduced.

3-2. Modification 2
The method of rearranging a plurality of facility information is not limited to that described in the embodiment. For example, the rearrangement may be performed in order from the longest distance from the mobile terminal 10 based on the GPS positioning result. Alternatively, in addition to the distance from the mobile terminal 10 based on the GPS positioning result, another factor may be considered. For example, the facility information may be rearranged according to a weighted distance that takes into account the priority set for each facility. In this case, the priority of each facility is recorded in the facility information database 311. In another example, the facility information may be rearranged after the facility information is narrowed down according to the classification set for each facility. In this case, the facility information database 311 records the classification of each facility (station, hotel, convenience store, gas station, etc.). For example, the control unit 110 of the mobile terminal 10 may rearrange only the facility information belonging to a specific classification (for example, hotel) from the acquired facility information based on the GPS positioning result.

3-3. Modification 3
The mode of displaying the rearranged facility information is not limited to the example illustrated in FIGS. 10B and 11B. When the facility information is displayed on the map, the pop-up positions of the facility information may be rearranged according to the order calculated based on the GPS positioning result. In another example, the size of the facility information pop-up may be changed according to the order calculated based on the GPS positioning result (for example, the earlier one is larger and the later one is smaller). In yet another example, the pop-up color of the facility information may be changed according to the order calculated based on the GPS positioning result (for example, an earlier color is a conspicuous color, and a late one is an inconspicuous color. so). In yet another example, the font type of the popup in the facility information may be changed in accordance with the order calculated based on the GPS positioning result (for example, the earlier type is bold and the later type is thin. so).

3-4. Modification 4
The method of calculating the current position of the mobile terminal 10 using the base station positioning result is not limited to that described in the embodiment. For example, the base station database 212 may not include a parameter that specifies a cell range, such as a cell radius. In this case, the cell radius of the base station may be set to a certain value by the map information display program. Further, the mobile terminal 10 may acquire information on the base station such as the position of the base station and the cell radius from a device other than the positioning server 20.

3-5. Modification 5
Specific examples of the first method and the second method for measuring the current position of the mobile terminal 10 are not limited to GPS positioning and base station positioning. If the combination of the first method and the second method that obtains positioning results faster than the first method (high speed) and the position accuracy indicated by the obtained results is low (low accuracy), GPS positioning and A positioning method other than base station positioning may be used. For example, instead of the base station positioning method, positioning by a wireless LAN access point may be used. In this case, the network 40 is a wireless LAN having an access point.

3-6. Other Modifications The mobile terminal 10 is not limited to a mobile phone. The mobile terminal 10 may be a laptop computer, a smartphone, a car navigation device, a PDA (Personal Digital Assistant), an electronic book, or a portable music player.
The hardware configuration of the mobile terminal 10 for realizing the functional configuration shown in FIG. 2 is not limited to that shown in FIG. The mobile terminal 10 may have any hardware configuration as long as necessary functions are realized. For example, the mobile terminal 10 may have a circuit (device) corresponding to each functional element in FIG.
The map display program executed by the control unit 110 in the above embodiment includes a magnetic recording medium (magnetic tape, magnetic disk (HDD, FD (Flexible Disk)), etc.), optical recording medium (optical disk (CD (Compact Disk)), DVD (Digital Versatile Disk), etc.), magneto-optical recording medium, semiconductor memory (flash ROM, etc.), etc. The program may be downloaded via a network such as the Internet. Further, this program is not limited to the map display program. Any type of program may be used as long as the function of FIG. 2 can be realized.

DESCRIPTION OF SYMBOLS 1 ... Mobile communication system, 10 ... Mobile terminal, 11 ... 1st positioning means, 12 ... 2nd positioning means, 13 ... Facility information acquisition means, 14 ... Rearrangement means, 15 ... Display means, 20 ... Positioning server, 21 ... Storage means 22 ... Request acquisition means 23 ... Extraction means 24 ... Transmission means 30 ... Information providing server 31 ... Storage means 32 ... Position information acquisition means 33 ... Extraction means 34 ... Transmission means 40 ... Network 50 ... GPS satellite 110 ... control unit 111 ... CPU 112 ... RAM 113 ... ROM 120 ... storage unit 130 ... GPS positioning unit 140 ... input unit 150 ... display unit 160 ... communication unit 211 ... Location registration database, 212 ... Base station database, 311 ... Facility information database

Claims (6)

A first positioning means for acquiring first position information indicating the position of the own device by the first method;
Second positioning means for acquiring second position information indicating the position of the device by the second method, wherein the accuracy of the position information is lower than that of the first method and the time required for acquiring the position information is shorter;
Facility information acquisition means for acquiring a plurality of facility information including a facility name for identifying a facility from a server on the network according to the second position information;
Rearrangement means for performing processing for rearranging the order of the plurality of facility information acquired by the facility information acquisition means based on the first position information;
A mobile terminal comprising: display means for displaying the plurality of facility information whose order is rearranged by the rearranging means. The said rearrangement means rearranges the said some facility information as the said process in an order from the position close | similar to the position of the own apparatus shown by the said 1st position information. Mobile terminal. The first positioning means repeatedly acquires the first position information,
The mobile terminal according to claim 1, wherein the rearranging unit performs the process when new first position information is acquired. A mobile communication system having a mobile terminal, a positioning server, and an information providing server,
The mobile terminal
A first positioning means for acquiring first position information indicating the position of the own device by the first method;
Second positioning means for acquiring second position information indicating the position of the device by the second method, wherein the accuracy of the position information is lower than that of the first method and the time required for acquiring the position information is shorter;
Facility information acquisition means for acquiring a plurality of facility information according to the second location information from a server on the network;
Reordering means for reordering the order of the plurality of facility information acquired by the facility information acquiring means based on the first position information;
Display means for displaying the plurality of facility information whose order has been rearranged by the rearranging means,
The positioning server
Positioning storage means for storing a database in which base station information indicating a position of a base station with which the mobile terminal is communicating and an identifier of the mobile terminal is stored;
Positioning transmission means for transmitting base station information corresponding to the identifier of the mobile terminal to the mobile terminal using a database stored in the positioning storage means,
The information providing server includes:
Facility information storage means storing facility information including a facility name and a database in which position information corresponding to the facility information is recorded;
Position information acquisition means for acquiring the second position information from the mobile communication terminal;
Extraction means for extracting facility information of a plurality of facilities located within a certain range centered on the position indicated by the second position information, using a database stored in the facility information storage means;
And a facility information transmitting means for transmitting the extracted plurality of facility information to the mobile terminal. First positioning means for acquiring first position information indicating the position of the device according to the first method, and a second method in which the accuracy of the position information is lower than that of the first method and the time required for acquiring the position information is short. To the mobile terminal having the second positioning means for acquiring the second position information indicating the position of the own device, and the control means,
The first positioning means obtaining the first position information;
The second positioning means acquires the second position information;
The control means acquires a plurality of facility information for identifying a facility from a server on a network according to the second position information;
The control means performing a process of rearranging the order of the plurality of facility information based on the first position information;
A program for causing the control means to display the plurality of facility information on which the processing has been performed on a display means. First positioning means for acquiring first position information indicating the position of the device according to the first method, and a second method in which the accuracy of the position information is lower than that of the first method and the time required for acquiring the position information is short. By the second positioning means for acquiring the second position information indicating the position of the device, and a control means, the control method of the mobile terminal,
The first positioning means obtaining the first position information;
The second positioning means acquires the second position information;
The control means acquires a plurality of facility information for identifying a facility from a server on a network according to the second position information;
The control means performing a process of rearranging the order of the plurality of facility information based on the first position information;
And a step of displaying the plurality of facility information on which the processing has been performed on a display unit.

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