JP2008175624A - Personal digital assistance, route support processing method and route support processing program - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To evacuate a user to his/her home, office or the like safely, surely and rapidly, when a network stops its service, when a disaster occurs. <P>SOLUTION: A display section 13 employs a display capable of displaying a map image. A GPS control section 24 and a GPS antenna 25 measure the position of the user's own terminal. A control section 10 detects a place frequently utilized by the user of the user's own terminal from coordinate data of latitude and longitude of the GPS, for example, obtains four places most frequently used by the user within one week, and computes routes connecting these places. Then, the control section 10 acquires the map data of the periphery of the computed routes via the Internet using wire or wireless communications and stores them in a map buffer 18 of a memory section 15. When a disaster or the like occurs, the control section 10 reads the stored map data from the map buffer 18 and makes them displayed on the display section 13. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a portable information terminal, a route support processing method, and a route support processing program for performing route guidance when returning home from a destination, for example, at the time of a disaster.

  In recent years, when public transportation stops due to a large-scale earthquake or the like, for example, a problem that makes it difficult to return from work to home, that is, a so-called “difficult to return home problem” has been highlighted.

  As a method for coping with this “difficult problem of returning home”, for example, “Earthquake return home support map metropolitan area version ASIN: 439868535” (Non-patent Document 1) is always carried or always kept. You can list things like

  As another means for acquiring a map, for example, a navigation system that combines a portable information terminal having a GPS (Global Positioning System) function and map information that can be downloaded to the terminal has already been commercialized. As a prior art document regarding this, for example, Japanese Patent Application Laid-Open No. 2004-117136 (Patent Document 1) is cited.

JP 2004-117136 A (FIG. 1) Keibunsha editorial department "Earthquake return home support map metropolitan area version" Sobunsha, September 2005

  However, in the case of the method of always carrying the books and maps described above, the books and maps are heavy and bulky, and therefore it is unrealistic to always carry them from normal times. In addition, in the case of the method of storing books and maps at the workplace, it is difficult to remember where they are stored in an emergency, and even if it can be remembered, emergency evacuation outside the building of the workplace There is also a drawback that there is no time to take it out. On the other hand, if you try to bring out these books and maps, evacuation outside the building may be delayed.

  In addition, in the case of the technology for downloading the map information described above to the portable information terminal, since the map information is downloaded from the network when it becomes necessary, the network operates normally due to a large-scale disaster such as an earthquake. There is a problem that it cannot be used when it stops. In the case of a general car navigation system, since map information is stored in a CD / DVD-ROM or the like, connection to a network is not necessary, but a CD / DVD-ROM playback device or the like is required. Inevitably, the size of the device is inevitably increased, making it unsuitable for carrying, and increasing the price.

  Furthermore, in the case of books, maps, and CD / DVD-ROM, the information on roads, buildings, topography, etc. posted on them becomes out of date, and the actual roads, buildings, etc. are different from the information on those maps, etc. It can happen. In such a case, there is a possibility that reliable evacuation and route guidance cannot be performed.

  The present invention has been proposed in view of such circumstances, and when a disaster occurs, it is not necessary to search for and carry out extra items such as books and maps, and for example, the network falls into a disconnected state. Even if it does not use a large and expensive device such as a car navigation system, a portable information terminal, a route support processing method and An object is to provide a route support processing program.

  The portable information terminal of the present invention detects an area used by the user of the terminal based on the position measurement information based on the image display unit capable of displaying at least a map image, a positioning unit that measures the position of the terminal. A usage location detection unit, a location extraction unit that extracts at least two locations that meet a predetermined condition from a plurality of detected usage locations, and a route that connects the two or more extracted locations are calculated. By having a route calculation unit, a map information acquisition unit that acquires map information around the calculated route from a predetermined network, and a map information storage unit that stores the map information, the above-described problem is solved.

  Further, the route support processing method of the present invention includes a step of measuring the position of the own terminal, a step of detecting a place used by the user of the own terminal based on the position measurement information, and the plurality of detected uses Extracting at least two or more locations that meet a predetermined condition from the locations, calculating a route connecting the two or more extracted locations, and calculating map information around the calculated routes By having a step of acquiring from the network and a step of storing the acquired map information, the above-described problem is solved.

  In addition, the route support processing program of the present invention includes a positioning unit that measures the position of the terminal, a use location detection unit that detects a location used by the user of the terminal based on the position measurement information, and the detection. A location extracting unit that extracts at least two or more locations that meet a predetermined condition from a plurality of usage locations, a route calculating unit that calculates a route connecting the two or more extracted locations, and the calculated route periphery The above-described problems are solved by causing the portable information terminal to function as a map information acquisition unit that acquires the map information from a predetermined network and a map information storage unit that stores the map information.

  That is, according to the present invention, two or more locations that meet a predetermined condition are identified from a plurality of locations used by the user of the terminal, and a route connecting the two or more locations is calculated, and the calculation is performed. The map information around the route is acquired from the network and stored in advance.

  In the present invention, two or more places that meet a predetermined condition are extracted from a plurality of places used by the user of the terminal, that is, two or more places frequently used by the user are specified, and the two Since the map information around the route connecting the above locations is acquired and stored in advance from the network, for example, when a disaster occurs, search for and carry out extra items such as books and maps. Even if the network goes out of service, users can be safely, surely and quickly evacuated to their homes or workplaces without using large and expensive devices such as car navigation systems. It becomes.

  Hereinafter, a first embodiment of the present invention will be described with reference to the drawings.

  In this embodiment, as an embodiment to which the portable information terminal, route support processing method and route support processing program of the present invention are applied, at least a display for displaying an image and the current position (latitude, longitude) of the terminal itself And a mobile phone equipped with a GPS function for acquiring a moving speed, a function for wirelessly accessing a network such as the Internet, a memory capable of storing a map and route information on the map, and a CPU for performing calculation and control Lists phone terminals. Of course, the content described here is merely an example, and it goes without saying that the present invention is not limited to this example.

[Schematic configuration of mobile phone terminal]
FIG. 1 shows a schematic internal configuration example of a mobile phone terminal according to an embodiment of the present invention.

  In the mobile phone terminal shown in FIG. 1, a communication antenna 12 is, for example, a built-in antenna, and transmits and receives signal radio waves for telephone calls and packet communications. The communication circuit 11 performs frequency conversion, modulation, demodulation, and the like of transmission / reception signals. The cellular phone terminal according to the present embodiment performs voice calls, packet communications, and the like using the communication circuit 11 and the communication antenna 12. When the reception data of the communication antenna 12 and the communication circuit 11 is call voice data, the call voice data is sent to the voice processing unit 22 via the data line, and the other received data is temporarily transmitted to the control unit 10. After being appropriately processed, it is sent from the control unit 10 to each unit as necessary. The packet communication is used for e-mail data communication, program data communication, data communication via the Internet, and the like.

  When the call voice reception data is supplied from the communication antenna 12 and the communication circuit 11, the voice processing unit 22 decodes the call voice reception data, and transmits the decoded call voice data via the data line. Send to speaker 20.

  The speaker 20 is a speaker for reception and a ringer (ringing tone), a speaker for music playback and alarm sound output provided in a mobile phone terminal, and includes a digital / analog converter and an amplifier, and is used for calling voice and ringer sound. , Playback music data is digital / analog converted and amplified before being output. As a result, call voice, ringer sound, and playback music can be obtained.

  The microphone 21 is a microphone for transmitting and collecting external sound, and includes an analog / digital converter and an amplifier. The audio signal input through the microphone 21 is amplified to a predetermined level by an amplifier, converted to digital audio data by an analog / digital converter, and sent to the audio processing unit 22 through a data line. After being encoded, the data is sent to the communication circuit 11 via the data line, subjected to various processes such as modulation and frequency conversion, and transmitted from the communication antenna 12.

  The display unit 13 includes, for example, a display such as a liquid crystal display and a display drive circuit for the display, and displays images and characters, images such as a map and a route for route guidance (route) described later, and the like on the display.

  The image processing unit 23 generates image data such as a standby screen, an e-mail, a schedule, a calendar, a telephone book, a map or a route for route guidance (to be described later), and displays the image data via a data line. Processing to be sent to the display of the unit 13 for display, processing of an image taken by a camera (not shown), and the like are performed.

  The operation unit 14 includes keys such as a numeric keypad, an utterance key, a call end key / power key, a cross key, a jog dial, a touch panel, and the like provided on a casing (not shown) of the mobile phone terminal according to the present embodiment. And an operation signal generator for generating an operation signal when the operation elements are operated. In the present embodiment, each operation element of the operation unit 14 is used for input of information input from the user, menu selection, other various operations, setting of various functions, and the like.

  The GPS antenna 25 receives radio waves transmitted by geodetic satellites in GPS. The GPS control unit 24 obtains the latitude and longitude of the current position of the terminal itself based on the radio wave reception of the GPS antenna 25. GPS data (data representing latitude and longitude) obtained by the GPS antenna 25 and the GPS control unit 24 is sent to the control unit 10.

  The short-range communication antenna 27 is an antenna for performing transmission / reception of radio waves for short-range wireless communication using, for example, a so-called Bluetooth method (Bluetooth: registered trademark), UWB (Ultra Wide Band) method, wireless LAN (Local Area Network), or the like. It is. The near field communication control unit 26 performs general control of the near field communication and exchanges data with the control unit 10. The short-range wireless communication may include non-contact communication used in infrared communication (IrDA), so-called RFID (Radio Frequency-Identification), a non-contact type IC card, and the like. When infrared communication is performed, an infrared transmission / reception element is mounted on the mobile phone terminal.

  The cable connection unit 28 is an interface device for connecting to a network or the like by wire. The cable connection unit 28 can also be connected to a LAN.

  The memory unit 15 includes a ROM (Read Only Memory) and a RAM (Random Access Memory). The ROM includes a rewritable ROM such as a NAND-type flash memory. For example, an OS (Operating System) program, a control program for the control unit 10 to control each unit, and e-mail processing In addition to various application programs installed in general mobile phone terminals such as programs and schedule book processing programs, various initial setting values, font data, dictionary data, identification information (ID), and the like according to the present embodiment A route assistance processing program for executing the route assistance processing, latitude and longitude coordinate data obtained by the GPS function, movement speed data, map data and route (route) data in the route assistance processing, and the like are stored. In the example of FIG. 1, among the storage areas in the memory unit 15, the storage area 16 of the route assistance processing program according to the embodiment of the present invention, the coordinate buffer 17 for storing coordinate data, and the map data are stored. A map buffer 18 is shown. The RAM stores data as needed as a work area when the control unit 10 performs various data processing. Note that the memory unit 15 may include a removable external memory card, and all or a part of the large-capacity data such as map data (for example, lower priority among map data of higher coordinates described later). The lower coordinate map data) may be stored in the external memory card.

  The control unit 10 performs control of each component of the mobile phone terminal according to the present embodiment and various arithmetic processes in addition to control of communication in the communication circuit 11, control of the audio processing unit 22, the image processing unit 23, and the like. Although details will be described later, particularly in the case of the present embodiment, the control unit 10 performs each process and control related to the execution of the route support processing program in the memory unit 15.

  In addition, although not shown in FIG. 1, the mobile phone terminal of the present invention captures an image using a clock unit that generates information such as date, time, and time, and a lens system and an image sensor. For the camera unit, LED (light emitting diode) for key illumination and incoming light and its driving unit, vibrator and its driving unit, battery for supplying power to each unit and power management IC unit for controlling the power, so-called electronic money Each component provided in a general mobile phone terminal, such as an electronic wallet unit for storing information and transmitting / receiving signals, is also provided.

[Operations during daily use before a disaster occurs]
Hereafter, the operation | movement at the time of the route assistance process in the mobile telephone terminal of this embodiment is demonstrated using FIGS. 2 and 3 show the flow of processing performed mainly by the CPU of the control unit 10 executing the route support processing program.

  The flowchart of FIG. 2 shows the operation of the mobile phone terminal of this embodiment in daily use before the occurrence of a disaster.

  In FIG. 2, the control unit 10 first clears the coordinate buffer 17 of the memory unit 15 as a process of step S1.

  Next, the control unit 10 advances the processing to step S2, controls the GPS control unit 24 to sequentially acquire the latitude and longitude data of its own terminal, and obtains the sequentially acquired latitude and longitude data from the clock unit. The moving speed of the terminal is acquired (calculated) based on the obtained time information.

  Next, as a process of step S3, the control unit 10 refers to the movement speed of the terminal acquired in step S2, and determines whether or not the movement speed is, for example, 25 km / h or less. In step S3, if it is determined that the moving speed of the terminal is 25 km / h or less, the process proceeds to step S4. Otherwise, the process proceeds to step S5. In other words, the control unit 10 determines whether or not the own terminal has hardly moved for a predetermined time or more at a certain point, and when the own terminal has hardly moved for a predetermined time or more, the process proceeds to step S4. Otherwise, the process proceeds to step S5.

  When the processing proceeds to step S <b> 4, the control unit 10 adds the latitude / longitude data pair of the terminal acquired from the GPS control unit 24 to the coordinate buffer 17 of the memory unit 15.

  In step S5, the control unit 10 waits for, for example, 5 minutes according to time information from the clock unit, and then proceeds to step S6.

  When the process proceeds to step S6, the control unit 10 determines whether or not the process of step S2 to step S5 has been executed, for example, 2016 times, that is, whether or not the process of step S2 to step S5 has been continuously performed for one week. The determination is made, and the process returns to step S2 while 2016 execution is not performed, and the process proceeds to step S7 when it is determined that 2016 execution has been performed.

  Proceeding to step S7, the control unit 10 extracts coordinate data that matches a predetermined condition from a plurality of pairs of latitude and longitude data stored in the coordinate buffer 17 of the memory unit 15, That is, for example, coordinate data of the upper four latitude / longitude pairs frequently extracted from the coordinate data of 2016 latitude / longitude pairs obtained by GPS positioning every 5 minutes, and the process proceeds to the next step S8. . Details of the processing in step S7 will be described with reference to FIG. When there is coordinate data that has the same rank when extracting higher-order coordinate data, for example, a place that is close to the top position or a place that is far away is given priority. Or you may make it select based on a random number.

  When the processing proceeds to step S8, the control unit 10 determines all routes (routes) of the combinations in which two coordinates are selected from the upper four coordinate data extracted in step S7, that is, a total of 6 (C (4, 2) = 6) Determine the route. Note that an algorithm known for an existing car navigation system or the like can be used as a processing algorithm for searching for a route between two coordinates, and therefore the description thereof is omitted in this embodiment.

  Next, the control unit 10 advances the processing to step S9, controls the communication circuit 11, and downloads the map data on each route obtained in the previous step S8 through a network such as the Internet.

  Thereafter, the control unit 10 advances the processing to step S10, stores the map data downloaded in step S9 in the map buffer 18 of the memory unit 15, and then returns the processing to step S1.

  The cellular phone terminal of this embodiment repeats the process of the flowchart shown in FIG. 2 indefinitely during daily use before the occurrence of a disaster.

[Details of the top four latitude and longitude pair extraction process]
The flowchart in FIG. 3 shows the detailed operation of the upper four coordinate data extraction processing in step S7 in FIG.

  In FIG. 3, when the control unit 10 proceeds from step S6 to step S7 in FIG. 2, first, as the processing of step S21, 2016 latitude and longitude stored in the coordinate buffer 17 of the memory unit 15. With reference to the coordinate data of the pair, for example, the eastmost coordinate LNGmax, the westest coordinate LNGmin, the northernmost coordinate LATmax, and the southernmost coordinate LATmin are obtained.

  Next, as the process of step S22, the control unit 10 obtains two values (LNGmax−LNGmin) and (LATmax−LATmin) using the coordinates obtained in step S21, and any one of these two values. Find the larger value. The value is set as the length L of one side of the coordinate grid described in step S23 as the next process.

  Next, as shown in FIG. 4, the control unit 10 secures, for example, an 8 × 8 array variable area on the storage area of the memory unit 15 as a process of step S <b> 23, and each element area of the array variable area. The value of is initialized to zero. Hereinafter, this array variable area is referred to as a coordinate grid, and each 8 × 8 grid constituting the coordinate grid is referred to as an element grid. That is, the entire coordinate grid corresponds to a map of a square area in which the left end is the westernmost coordinate LNGmin, the lower end is the southernmost coordinate LATmin, and the length of one side is L. In this embodiment, each element of the array variable is a “voting box” corresponding to a square element grid with a side of (1/8) L.

  Next, as the process of step S24, the control unit 10 votes all coordinate pairs (maximum 2016) stored in the coordinate buffer 17 of the memory unit 15 to the “voting box” of the corresponding element grid. . That is, the control unit 10 calculates which element grid in each of the coordinate grids each coordinate pair is included in, and votes to the “voting box” of each corresponding element grid as one vote per coordinate pair. . Note that one vote for “voting box” is performed by adding “1” to the array variable of the element grid.

  When the voting to the “voting box” is completed for all the coordinate pairs described above (maximum 2016), the control unit 10 performs the process of step S25, and among the 8 × 8 all element grids, the top four votes Each element grid corresponding to each “voting box” is obtained. In the case of the example of FIG. 4, the top four “voting boxes” of the number of votes are each element grid surrounded by a thick frame in the figure.

  Thereafter, the control unit 10 calculates the latitude and longitude corresponding to the center coordinates of each element grid corresponding to the “voting box” having the top four votes obtained in step S25 as processing in step S26. The process proceeds to step S8 of step 2.

  As described above, the processes in steps S1 to S9 in FIGS. 2 and 3 are all performed regardless of the user's operation / determination, and are repeated infinitely during the operation of the mobile phone terminal. Note that the processing in steps S1 to S9 is performed using background processing of other processing on the mobile phone terminal, that is, for example, idle time of processing such as a call.

  Further, the numerical values such as 25 km / h, 5 minutes, 2016 times, four coordinate points, and 8 × 8 described in the above description are of course not limited thereto, and even if they are replaced with different numerical values, The effect is obtained.

[Operation mode at the time of disaster]
The operation modes at the time of disaster are shown below.

  For example, when a user who has actually caused a disaster and needs route support determines, the user performs a predetermined operation on the operation unit 14. In response to this, in the cellular phone terminal, the above-described operation during daily use is stopped, and the map buffer 18 is not updated. Then, the control unit 10 superimposes the current coordinates acquired from the GPS control unit 24 and the map in the map buffer 18 and displays them on the display unit 13. This process is equivalent to a known car navigation system or the like, and details thereof are omitted.

[Other Embodiments]
In the case of the first embodiment described above, in step S9 in FIG. 2, the mobile phone network is connected to a network such as the Internet by wireless communication through the communication circuit 11, and map data on each route is downloaded. As a second embodiment of the present invention, it is also possible to acquire map data and the like of each route through a wired connection such as a LAN cable.

  In the case of the second embodiment, the control unit 10 stands by until connection to the network is performed through a wired line such as a LAN cable in the process of step S9 in FIG. Note that, until connection to the network through the wire is performed, for example, a “waiting for connection” icon or the like may be displayed on the display, or may not be displayed.

  When wired connection is made through a LAN cable or the like and connection to the network is made, the control unit 10 downloads the map data and the like of each route, and then maps the map data and the like in step S10. Save to buffer 18. Since other processes are the same as in the case of the above-described wireless connection, the description thereof is omitted here.

  As described above, in the case of the second embodiment in which map data or the like is downloaded from a network through a wired connection through a LAN cable or the like, a wireless communication device is not necessarily required, and since it is wired communication, compared with wireless communication. Communication charges may be cheaper.

  Note that the connection to the network such as the Internet may be performed through, for example, the short-range wireless communication control unit 26 and its antenna 27 in addition to the LAN cable.

  In the first embodiment and the second embodiment described above, an example in which the mobile phone terminal automatically obtains the top four coordinates is given. However, as the third embodiment of the present invention, a predetermined number according to the present invention is given. It is also possible to provide a user interface that allows the user to specify desired 1 to 4 coordinates as a condition.

  In the case of the third embodiment, the user interface operates at an arbitrary time point specified by the user asynchronously with the processing shown in FIGS. In addition, the coordinates designated by the user in the third embodiment are used in preference to the coordinate extraction performed by the control unit 10 in step S7 described above. That is, when the user designates the coordinates of one desired point, for example, when the process of step S7 is subsequently executed, the control unit 10 determines that the top three (= 4-1) votes in step S24. Select a box. If any of the three ballot boxes selected by the control unit 10 in step S24 includes the coordinates (ballot box) of the element grid corresponding to the coordinates specified by the user, the control unit 10 A new ballot box with the fourth largest number of votes, excluding, is selected.

  As described above, in the case of the third embodiment in which a user can specify a desired coordinate, the user manually specifies, for example, “I rarely stop, but an important place (for example, a relative's house”). it can. Therefore, for example, when a disaster occurs, a map for reaching the place can be secured.

  Further, in each of the above-described embodiments, it is assumed that the user arbitrarily selects which route is displayed on the display when a disaster occurs. It may be determined which route is displayed first on the telephone terminal side. As an example, when a mobile phone terminal is requested to display a route by the occurrence of a disaster, a route to the nearest coordinate from the current position or a route to the home is extracted from the top coordinates extracted earlier. indicate.

  According to the fourth embodiment, the user can save time and effort to select one of the routes, and can evacuate more safely.

  As a fifth embodiment of the present invention, in addition to the map data on each route described above, map data within a peripheral radius of 1 km, for example, of coordinates obtained by high-order extraction may be downloaded and stored. If map data within a radius of 1 km around the upper coordinates is prepared in this way, the possibility of safe evacuation by the map data at the time of disaster increases.

  The surrounding map data may be downloaded for all of the top four coordinates, for example. However, considering the consumption of memory capacity and the communication fee at the time of downloading, for example, the top, first and second You may make it download only with respect to the coordinates of the place.

  In the first to fifth embodiments described above, for example, coordinate data acquired in units of 5 minutes is accumulated for one week (2016) and upper coordinate data is extracted. In this embodiment, as a predetermined condition according to the present invention, it is possible to change the way of summarizing coordinate data, for example, on weekdays and holidays, based on calendar data provided in the mobile phone terminal.

  That is, for example, the place where the user stops on weekdays and holidays is likely to change.For example, on weekdays, it is home and work, school, nearest station, etc. May go to different places.

  Therefore, processing is divided between weekdays and holidays based on calendar data, and route data obtained from coordinates extracted based on coordinate data aggregated on weekdays and coordinates extracted based on coordinate data aggregated on holidays are obtained. For example, if a disaster occurs on a weekday, the route based on the coordinate data compiled on the previous weekday is displayed on the display, while a disaster occurs on a holiday. In the event that a problem occurs, a route based on the coordinate data collected during the previous holidays is displayed on the display.

  In the case of the sixth embodiment, it is possible to provide the user with an optimum route depending on whether the disaster occurs on weekdays or holidays.

  In addition, as the seventh embodiment, for example, it is possible to change the way of summarizing the coordinate data according to the contents of the schedule book registered in the memory unit 15.

  That is, in the seventh embodiment, when it is found from the information registered in the schedule book that there are several places where the user often stops at a specific date and time within a week or month, for example, the schedule book The coordinate data aggregation and extraction process is changed based on the data of the route, the route data obtained from the coordinates extracted based on the coordinate data aggregated based on the contents of a specific schedule, and otherwise described above The route data obtained from the coordinates extracted based on the coordinate data aggregated as in any of the first to sixth embodiments is downloaded, for example, a disaster at a date and time that matches a specific schedule content, etc. If an error occurs, the route based on the coordinate data collected at the date and time that matches the specific schedule contents before that appears on the display. To make it in, while at other times so as to display the route based on the coordinate data obtained by aggregating the same manner as described above on the display.

  In the case of the seventh embodiment, an optimum route can be provided to the user according to the schedule data.

[Summary]
As described above, according to each embodiment of the present invention, the mobile phone terminal automatically recognizes a plurality of locations (for example, about 2 to 5 locations) frequently used by the user during normal operation before a disaster. In addition, a route connecting these locations is automatically selected, and a map around the route is automatically downloaded and stored in the mobile phone terminal. That is, the mobile phone terminal according to each embodiment of the present invention automatically calculates the location (plurality) where the user stays for a long time in step S1 to step S7 in FIG. In step S9, the map buffer 18 in the mobile phone terminal is automatically acquired. Therefore, according to each embodiment of the present invention, even when the network is disconnected when a disaster occurs, the route to the home or the workplace by the map data in the mobile phone terminal and the self-location acquisition function by GPS Support (direction guidance) is possible. Thereby, the user can evacuate safely and quickly.

  Further, according to each embodiment of the present invention, the map data is automatically acquired by the mobile phone terminal, so that the user does not need to be aware of the process. That is, for example, even if the location of home or work is changed due to moving or transferring, the user does not need to update the map data consciously. That is, according to the present embodiment, it is possible to save the user's trouble, and to prevent troubles such as a case where the user has forgotten to update the map data after moving, and hit by an earthquake and there is no necessary map data. be able to. Further, according to the embodiment of the present invention, the user can actively specify a desired point.

  In particular, when the mobile information terminal of the present invention is applied to a mobile phone terminal, the mobile phone terminal is generally carried by the user at all times, and therefore, extra items to carry are increased, unlike conventional return support maps such as books. There is nothing, and there is no need to hurry to search in the event of a disaster, so it can be said that it is very practical.

  In addition, according to the present embodiment, since only map data of the evacuation route and its surroundings is acquired and stored, a large-capacity storage medium such as a CD / DVD-ROM used in a conventional car navigation system is required. Therefore, it can be downsized and can be applied to a portable information terminal at a low price. Furthermore, according to the present embodiment, unlike maps such as books and CD / DVD-ROMs, since automatic updating is performed periodically, there is a risk that the map is already outdated when a disaster actually occurs. Therefore, more reliable route support (direction guidance) can be provided to the user.

  The above description of the embodiment is an example of the present invention. For this reason, the present invention is not limited to the above-described embodiment, and it is needless to say that various modifications can be made according to the design or the like as long as the technical idea according to the present invention is not deviated.

  The portable information terminal according to the present embodiment is not limited to a mobile phone terminal, but may be a PDA (Personal Digital Assistant) having a GPS function, a communication function, and an arithmetic function, a notebook personal computer, a portable game machine, or the like. Applicable.

It is a block diagram which shows the schematic internal circuit structure of the mobile telephone terminal of embodiment of this invention. It is a flowchart of operation | movement in the daily use before disaster occurrence among the operation | movement at the time of the route assistance process in the mobile telephone terminal of this embodiment. It is a flowchart which shows the detailed operation | movement of the upper four coordinate data extraction process in step S7 of FIG. It is a figure used for description of the 8 × 8 array variable area (coordinate grid and element grid) secured on the storage area of the memory unit for the upper four coordinate data extraction processing.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 10 Control part, 11 Communication circuit, 12 Communication antenna, 13 Display part, 14 Operation part, 15 Memory part, 16 Program storage area, 17 Coordinate buffer, 18 Map buffer, 20 Speaker, 21 Microphone, 22 Voice processing part, 23 Image processing unit, 24 GPS control unit, 25 GPS antenna, 26 Near field communication control unit, 27 Near field communication antenna, 28 Cable connection unit

Claims (11)

An image display unit capable of displaying at least a map image;
A positioning unit that measures the position of the terminal;
Based on the position measurement information of the positioning unit, a usage location detection unit that detects a location used by the user of the terminal,
A location extraction unit that extracts at least two locations that meet a predetermined condition from a plurality of usage locations detected by the usage location detection unit;
A route calculation unit that calculates a route connecting two or more locations extracted by the location extraction unit;
A map information acquisition unit that acquires map information around the route calculated by the route calculation unit from a predetermined network;
A map information storage unit for storing the map information acquired by the map information acquisition unit,
A portable information terminal characterized by that.   The use location detection unit calculates the moving speed of the terminal based on the position measurement information of the positioning unit, and the user of the terminal uses the location where the moving speed within a predetermined time is equal to or less than the predetermined speed. The portable information terminal according to claim 1, wherein the portable information terminal is detected as a place where the mobile phone is located.   The location extraction unit is a top two of the number of usages of the user of the own terminal among a plurality of usage locations detected by the usage location detection unit within a certain period as two or more locations meeting the predetermined condition. 2. The portable information terminal according to claim 1, wherein the places up to the predetermined order are extracted.   The map information acquisition unit acquires the map information from a predetermined network through wireless communication when two or more locations meeting the predetermined condition are extracted by the use location detection unit. The portable information terminal according to claim 1.   The map information acquisition unit is configured to extract the map from the predetermined network when the usage location detection unit is connected to the predetermined network through wired communication after two or more locations that meet the predetermined condition are extracted. Information is acquired, The portable information terminal of Claim 1 characterized by the above-mentioned. The map information acquisition unit acquires map information within a certain radius distance around the place extracted by the place extraction unit,
The portable information terminal according to claim 1, wherein the map information storage unit stores map information within the fixed radius distance acquired by the map information acquisition unit. The location extraction unit is the two or more locations that meet the predetermined condition, and the top two or more of the use frequency of the user of the own terminal among a plurality of usage locations detected by the usage location detection unit within a certain period of time Extract places up to a predetermined order of
The map information acquisition unit acquires map information within a fixed radius distance around at least the highest place among the places up to the predetermined order extracted by the place extraction unit. Mobile information terminals.   The image display unit displays a map image based on the map information around the route closest to the current position of the terminal measured by the positioning unit among the map information around each route stored in the map information storage unit. The portable information terminal according to claim 1, wherein the portable information terminal is displayed. It has an operation unit that acquires operation input from the user,
The mobile information according to claim 1, wherein the route calculation unit calculates a route between two or more locations extracted by the location extraction unit and a location input by the user through the operation unit. Terminal. A step of measuring the position of the terminal by the positioning unit;
Based on the measurement information of the position of the terminal itself, the use location detection unit detects a place used by the user of the terminal;
A step of extracting at least two or more places where the place extraction unit meets a predetermined condition from the plurality of use places detected;
A step in which a route calculation unit calculates a route connecting the two or more extracted locations;
The map information acquisition unit acquiring the map information around the calculated route from a predetermined network;
The map information storage unit stores the acquired map information.
A route support processing method characterized by the above. A positioning unit that measures the position of the terminal;
Based on the position measurement information of the positioning unit, a usage location detection unit that detects a location used by the user of the terminal,
A location extraction unit that extracts at least two locations that meet a predetermined condition from a plurality of usage locations detected by the usage location detection unit;
A route calculation unit that calculates a route connecting two or more locations extracted by the location extraction unit;
A map information acquisition unit that acquires map information around the route calculated by the route calculation unit from a predetermined network;
As a map information storage unit for storing the map information acquired by the map information acquisition unit,
A route assistance processing program for causing a portable information terminal to function.

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