JP5546396B2 - Information search device, information search system, and information search program - Google Patents

Description

The present invention, information retrieval apparatus, information retrieval systems, and relates to information retrieval program.

  In an information search service provided by a portal site on the Internet, when a user accesses the portal site using a terminal device such as a PC (personal computer) or a mobile phone, a keyword input field and a search are displayed on the display screen of the terminal device. A button is displayed. When the user inputs a keyword and clicks the search button, the search is executed by the search server on the portal site, and a list of hit information summaries (title, summary, etc.) is displayed on the display of the terminal device. When the user selects an arbitrary one from the list and clicks on the title or the like, the information selected by the user is displayed on the terminal by jumping to a URL (Uniform Resource Locator) linked to the title or the like. It is displayed on the display of the device.

  As such an information search service, when a keyword is entered in the keyword entry field, a list of search candidate keywords including the keyword is displayed under the keyword entry field, thereby supporting keyword entry for narrowing down. There is. That is, for example, when the area name “Shinjuku” is entered in the keyword input field, search candidate keywords including “Shinjuku” include “Shinjuku Gyoen”, “Shinjuku Station”, “Shinjuku Ward”, “Shinjuku Lunch”, “ Search candidate keywords such as “Shinjuku Hotel” are displayed.

  However, in such a conventional information search service, there is a problem that the user cannot easily search for information on the self-location at a desired time and facilities in the vicinity thereof.

  The present invention has been made to solve such problems, and its purpose is to enable an information searcher to easily search for information on the self-location at a desired time and facilities nearby. is there.

The information search device of the present invention is an information search device that performs a search according to keyword information transmitted from a mobile terminal device, and provides a search result to the mobile terminal device, wherein the information search device is transmitted from the mobile terminal device. Keyword information receiving means for receiving the keyword information indicating a keyword indicating the current time and the keyword information indicating a keyword indicating a past time, information specifying means for specifying time information from the keyword information, and the specified The position acquired from the position information storage unit that stores the position information of the mobile terminal device at the time indicated by the time information in association with the time information of the position information of the mobile terminal device that is periodically transmitted from the mobile terminal device An information acquisition unit, a search candidate information storage unit storing search candidate information associated with the position information, and the acquired position An information search device comprising search candidate information acquisition means for acquiring search candidate information related to information from the search candidate information storage unit, and search candidate information transmission means for transmitting the acquired search candidate information to the mobile terminal device It is.
The information search system of the present invention is an information search system including the information search device of the present invention and a mobile terminal device, and the mobile terminal device indicates a keyword indicating the current time to the information search device. Information having keyword information and means for transmitting the keyword information indicating a keyword representing a past time, means for receiving the search candidate information transmitted from the information search device, and means for displaying the received search candidate information Search system .

  According to the present invention, it is possible for an information searcher to easily search for information relating to a self-location at a desired time and facilities in the vicinity thereof.

It is a figure which shows the information search system of embodiment of this invention. It is a block diagram of the portable terminal device in the embodiment of the present invention. It is a block diagram of the probe information collection server in the embodiment of the present invention. It is a figure which shows the example of the probe information preserve | saved at a probe information collection server. It is a block diagram of the information search server in the embodiment of the present invention. It is a flowchart which shows the probe information transmission operation | movement of the portable terminal device in embodiment of this invention. It is a flowchart which shows operation | movement of the probe information collection server in embodiment of this invention. It is a flowchart which shows operation | movement of the information search system in embodiment of this invention. It is a figure which shows the example of the screen displayed at the search candidate reception and display step in FIG.

Hereinafter, embodiments for carrying out the present invention will be described with reference to the drawings.
<Configuration of information retrieval system>
As shown in FIG. 1, the information search system of the embodiment of the present invention is connected to the network 1 via the probe information collection server 2 and the information search server 3 connected to the network 1 such as the Internet and the base station 4. It consists of a portable terminal device 5. The information search server 3 corresponds to the information search device according to the present invention. Although one mobile terminal device 5 is shown for convenience, it goes without saying that a large number of mobile terminal devices 5 are actually connected to the network 1. Each server may be connected by an intranet or a dedicated line.

  The probe information collection server 2 collects probe information (position information and positioning time information) generated by a large number of mobile terminal devices 5 and stores the probe information in association with the device ID of each mobile terminal device 5.

  The information search server 3 is a device installed in a company or the like that operates an information search service. The information search server 3 includes a personal computer, a workstation, and the like, and provides an information search service using a search Web page via the network 1.

  The mobile terminal device 5 includes a mobile phone, a PDA (Personal Digital Assistant), a PND (Personal Navigation Device), etc., and can receive an information search service by the information search server 3 by storing a predetermined application in a built-in ROM. it can.

<Configuration of mobile terminal device>
FIG. 2 is a block diagram of the mobile terminal device 5. The mobile terminal device 5 includes a control unit 51, an operation unit 52, a display unit 53, a position measurement unit 54, and a wireless communication unit 55.

  The control unit 51 is a controller for controlling each unit of the mobile terminal device 5, and includes a CPU (Central Processing Unit) 511, a ROM (Read Only Memory) 512, and a RAM (Random Access Memory) 513. The CPU 511 loads the program stored in the ROM 512 into the RAM 513 and executes it, thereby performing processing to be described later.

  The operation unit 52 includes various buttons for the user to operate the mobile terminal device 5. The display unit 53 includes an operation state of the mobile terminal device 5 and a liquid crystal display device for displaying information input by the user from the operation unit 52. The wireless communication unit 55 is a circuit for performing wireless communication with the base station 4.

  The position measurement unit 54 receives radio waves transmitted from GPS satellites at regular time intervals (for example, 5 minutes) and measures (positions) the current position. Instead of positioning using radio waves from GPS satellites, positioning using radio waves from a plurality of base stations, or positioning using the relationship between the ID and position of a wireless local area network (LAN) may be performed. The position measurement unit 54 outputs position information and positioning time information as positioning results to the control unit 51 as probe information.

<Configuration of probe information collection server>
As shown in FIG. 3, the probe information collection server 2 includes a control unit 21, a communication unit 22, and a storage unit 23.

  The control unit 21 includes a CPU 211, a ROM 212, and a RAM 213, and controls the entire probe information collection server. The CPU 211 performs processing described later by loading a program stored in the ROM 212 into the RAM 213 and executing it.

  The communication unit 22 communicates with the mobile terminal device 5 and the information search server 3 via the network 1. The storage unit 23 is composed of an HDD (hard disk device), and a probe information DB (database) 231 is provided. The probe information DB 231 stores the probe information generated by each mobile terminal device 5 in association with the device ID of each mobile terminal device 5.

  FIG. 4 shows an example of probe information. As shown in the figure, the probe information includes probe information ID, date information, time information, position information (longitude information, latitude information), mesh code ID, and address information.

<Configuration of information retrieval server>
The information search server 3 includes a control unit 31, a communication unit 32, and a storage unit 33 as shown in FIG. The control unit 31 includes a CPU 311, a ROM 312, and a RAM 313, and controls the information search server 3 as a whole. The communication unit 32 communicates with the mobile terminal device 5 and the probe information collection server 2 via the network 1.

  The storage unit 33 includes an HDD and is provided with a map information DB 331. The map information DB 331 stores road information, landmark information, address information, station information, and the like. That is, the search information is stored in the map information DB 331 in association with the position information.

<Probe information collection operation>
In the route guidance system having the above configuration, an operation in which the probe information collection server 2 collects probe information from the mobile terminal device 5 will be described with reference to FIGS. 6 and 7. Here, FIG. 6 shows the operation of the mobile terminal device 5, and FIG. 7 shows the operation of the probe information collection server 2.

  In the mobile terminal device 5, the position measurement unit 54 generates probe information every predetermined time (for example, 5 minutes) (step S1). The probe information is read into the RAM 513 by the CPU 511 in the control unit 51, and then transmitted to the probe information collection server 2 through the wireless communication unit 55 together with the device ID stored in the ROM 512 (step S2). Here, transmission of the probe information may be performed one by one or may be performed collectively.

  In the probe information collection server 2, the communication unit 22 receives the information transmitted from the mobile terminal device 5 (step S <b> 11) and sends it to the control unit 21. The control unit 21 associates the probe information with the device ID and stores it in the probe information DB 231 (step S12).

<Operation of information retrieval system>
The operation of the information search system will be described using the flowchart shown in FIG.
First, the user of the mobile terminal device 5 uses the operation unit 52 to perform an operation for starting an application for using the information search server 3. In response to this operation, the mobile terminal device 5 transmits a connection request signal to the information search server 3 (step S21). This connection request signal includes the device ID of the mobile terminal device 5.

  In the information search server 3, the communication unit 32 receives the connection request signal and sends it to the control unit 31. The control unit 31 starts processing upon reception of the connection request signal, acquires the device ID in the connection request signal, stores the device ID in the RAM 313, and causes the display unit 53 of the mobile terminal device 5 to display a search screen. The search screen information is read and transmitted to the mobile terminal device 5 (step S31).

  The mobile terminal device 5 receives the search screen information and displays the search screen on the display unit 53 based on the information (step S22). When the user inputs a keyword in the keyword input field on the search screen, the mobile terminal device 5 transmits keyword information indicating the input keyword to the information search server 3 (step S23).

  In the information search server 3, the communication unit 32 receives the keyword information (step S32) and sends it to the control unit 31. The control unit 31 receives the keyword information and specifies time information (step S33). Here, the time information is, for example, current time information if the keyword is “now”, and time information of 24 hours yesterday if the keyword is “yesterday”. It is also possible to deal with keywords such as “2 days ago, 3 days ago” and “from January 1, 2010 to January 7, 2010”. Moreover, even if a plurality of keywords are input or a single keyword corresponds to a plurality of time information and time zones, it can be handled. That is, any keyword that can specify time information can be handled.

  Next, the information search server 3 acquires the position information of the mobile terminal device 5 from the probe information collection server 2 according to the specified time information (step S34). That is, the position information of the mobile terminal device 5 at the time indicated by the time information is acquired. Here, when the time information is current time information, only one piece of position information is acquired. On the other hand, if the time information is yesterday's 24-hour time information, for example, position information of a time zone during which the user of the mobile terminal device 5 was out is acquired. Whether or not the user is out can be determined by registering the home address of the user of the mobile terminal device 5 in advance in the probe information collection server 2 or the information search server 3.

  Next, the control unit 31 acquires search candidate information related to the acquired position information from the map information DB 331 (step S35). The search range / target (candidate) can be changed based on the time information specified from the input keyword. That is, if the acquired position information is current position information, for example, information indicating names of facilities such as the current position and the vicinity thereof (within a predetermined radius) is acquired as search candidate information. If the acquired position information is the position information of the time zone where the user has gone out yesterday, the information indicating the position of the destination and the name of the facility nearby is acquired as search candidate information. When there are multiple places to go, get all the information, or get information that indicates the names of places that are in the vicinity and facilities that meet the conditions set by the user (longest stay time, predetermined genre) To do. Similarly, when the acquired position information is the current position information, information representing the names of only the conditions that satisfy the user's preset conditions among the current position and the nearby facilities can be acquired as the search candidate information. .

  Next, the information search server 3 transmits the search candidate information to the mobile terminal device 5 (step S36). The mobile terminal device 5 receives the search candidate information, and displays search candidates on the display unit 53 based on the information (step S24). Here, the search candidates are displayed in the form of a list, for example. Further, for example, when the time information has a width as in the case where the keyword is “Yesterday”, it can be displayed in time series.

  FIG. 9 is a diagram illustrating an example of search candidates displayed on the display unit 53. Here, FIGS. 9A and 9B show the cases where the keywords are “now” and “yesterday”, respectively. As shown in FIG. 9A, when “now” is entered in the keyword input field 61, “Yurakucho”, “Yurakucho Station”, “Chiyoda-ku”, “XX Camera”, “Yamanote Line” are displayed in the search candidate display area 63. "," Yurakucho Line ", etc. are displayed as search candidates. In this case, the current position is Yurakucho.

  In FIG. 9B, when “Yesterday” is entered in the keyword input field 61, “Ueno Zoo”, “Western Art Museum”, “Ueno Park”, “Ueno Station”, etc. are displayed as search candidates in the search candidate display area 63. ing.

  In FIGS. 9A and 9B, the search target is indicated by matching the pointer 64 with a desired search candidate, and when the search button 62 is clicked, the URL jumps to the URL linked to the specified search target, and the specified search target is related. Information is displayed on the display unit 53. For example, in FIG. 9A, when “Yurakucho Station” is designated and the search button 62 is clicked, a timetable of the current time of Yurakucho Station can be displayed. 9B, when “Ueno station” is instructed and the search button 62 is clicked, it is possible to display the timetable of Ueno station and the train arrival and departure times at the time of being in Ueno yesterday.

  As described above, according to the information search system of the embodiment of the present invention, when a user makes a search request to the information search server 3 using the mobile terminal device 5, a keyword representing time is input in the keyword input field. The information search server 3 receives the keyword information transmitted from the mobile terminal device 5 and specifies time information. And since the position information of the portable terminal device 5 at the time indicated by the time information is acquired, the search candidate information related to the position information is acquired and transmitted to the portable terminal device 5, the user of the portable terminal device 5 It is possible to easily search for information at a desired time in the current or past position of the terminal device 5.

  In the above embodiment, the information search server 3 executes the process of specifying the time information from the keyword information. However, the portable terminal device 5 can be configured to execute this process.

  DESCRIPTION OF SYMBOLS 1 ... Network, 2 ... Probe information collection server, 3 ... Information search server, 5 ... Portable terminal device, 21, 31, 51 ... Control part, 22, 32 ... Communication part 231 ... Probe information DB, 331 ... Map information DB.

Claims (5)

An information search device that performs a search according to keyword information transmitted from a mobile terminal device and provides a search result to the mobile terminal device,
Keyword information receiving means for receiving the keyword information indicating the keyword indicating the current time and the keyword information indicating the keyword indicating the past time, transmitted from the mobile terminal device;
Information specifying means for specifying time information from the keyword information;
A location information storage unit that stores location information of the mobile terminal device at a time indicated by the specified time information in association with location information of the mobile terminal device periodically transmitted from the mobile terminal device. Position information acquisition means acquired from :
A search candidate information storage unit in which search candidate information is stored in association with the position information;
Search candidate information acquisition means for acquiring search candidate information related to the acquired position information from the search candidate information storage unit;
Search candidate information transmitting means for transmitting the acquired search candidate information to the mobile terminal device. In the information search device according to claim 1,
The position information acquisition unit is an information search device that acquires only position information that satisfies a preset condition from among the position information stored in the position information storage unit . In the information search device according to claim 1 or 2,
The search candidate information acquisition unit is an information search apparatus that acquires only search candidate information that satisfies a preset condition from among the search candidate information related to the acquired position information . An information search system comprising the information search device according to any one of claims 1 to 3 and a mobile terminal device,
The mobile terminal device transmits to the information search device keyword information indicating a keyword indicating a current time and means for transmitting the keyword information indicating a keyword indicating a past time, and a search transmitted from the information search device. information retrieval systems that Yusuke means for receiving the candidate information, and means for displaying a search candidate information received. An information search program for causing a computer to function as each means of the information search device according to any one of claims 1 to 3 .

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