JP4474539B2 - NAVIGATION DEVICE AND POINT SEARCH METHOD - Google Patents

Description

  The present invention relates to a navigation device, and more particularly to a technique for searching for a point in a vehicle-mounted navigation device.

  Patent Document 1 describes an in-vehicle navigation device that performs a location search based on information input from a user and displays the search result. In the technique described in Patent Document 1, a 50-sound table is displayed, and a displayed character is selected to accept a reading input. When the reading is confirmed, a point name starting with the confirmed reading is searched from the registered point names, and the search result is displayed. The user specifies a target point from the search results narrowed down to some extent.

JP 2002-310712 A

  However, with the technique of Patent Document 1, search results that are narrowed down to the extent that the user thinks appropriate are not always output.

  For example, when there are a large number of point names that share the same beginning of reading, it is necessary to input readings that are more than the number of characters that are normally input in order to obtain appropriately narrowed search results. However, since the user does not know whether there are a large number of spot names that have the same beginning of reading, the user inputs a normal number of readings and executes a search. Then, a large number of point names starting with the reading are displayed as search results. Then, the user must select a target point name from a large amount of search results. In such a case, if the number of reading characters is increased, more narrow search results can be expected. However, since it is necessary to return to the reading input screen and input the reading again, the work becomes complicated and the efficiency is low.

  On the other hand, if there are few common spot names at the beginning of reading, an appropriately narrowed search result should be obtained with the number of characters read less than the normal number of characters. However, since the user does not know whether there are few common spot names at the beginning of reading, the user inputs the number of characters for normal reading. That is, the user performs a useless work of inputting characters that do not need to be input.

  Moreover, the method of selecting and inputting one character from the displayed 50 sounds is not necessarily efficient.

  The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a technique for efficiently performing a point search.

  In order to solve the above problems, the point search method of the navigation device of the present invention performs a point search every time a reading is input and displays the search result. The navigation device of the present invention is configured as follows, for example.

  The navigation device includes a storage device that stores specific point information including the name of the specific point on the map. And
A reading acceptance step for receiving the reading of the point;
Each time the reading of the point is accepted by the reading acceptance step, a search step of searching for a point having a name starting with the reading from among the specific points included in the specific point information;
A search result display step for displaying a result searched by the search means;
  The reading acceptance step includes:
  Even when the search result is displayed, it is determined whether or not there is a reading input operation. If there is a reading input operation, a reading acceptance process for the point is performed,
  The search step includes
  Even when displaying the search results,
  Each time the reading of the point is received in the reading receiving step, the point of the name starting with the reading is searched from the specific points included in the specific point information.

  The reading reception step adds the received reading to the readings received so far each time a character reading of the point is received, and the search step accepts a character reading of the point by the reading reception step. You may make it search the point of the name which begins with the reading received by the said reading reception step from the specific points contained in the said specific point information for every time.

  In addition, the reading acceptance step includes a line selection acceptance step for accepting selection of any line constituting 50 sounds, and a character selection acceptance step for accepting selection of any character belonging to the line accepted in the line selection acceptance step. And a step of adding the newly received character in the character selection receiving step to the readings received so far.

  The reading accepting step may be configured not to accept the specific character as a new reading when the place name starting with the reading obtained by adding the specific character to the reading accepted so far is not included in the specific point information. Good.

  The reading acceptance step may display a reading acceptance screen for accepting a reading of a point, and the display of the reading acceptance screen and the display of the search result may be displayed on the same screen.

  Further, the reading acceptance step includes a candidate display step for displaying a candidate for reading characters, and a candidate selection receiving step for accepting selection of any candidate from the candidates displayed by the candidate display step. Also good. The candidate display step scrolls and displays the candidates when a scroll request is received, and the candidate selection reception step determines that the position on the display screen is constant when a candidate determination request is received. The candidates displayed in the area may be accepted candidates.

  Further, the navigation device further includes a candidate point display step for displaying the search result searched in the search step as a candidate point, and one of candidate points from among the candidate points displayed in the candidate point display step. You may make it include the candidate point selection reception step which receives selection, and the search destination point specific step which makes the candidate point received by the said candidate point selection reception step the specific point for search. The candidate point display step scrolls and displays the candidate points when a scroll request is received, and the search target point specifying step determines the position on the display screen when a candidate point determination request is received. A candidate point displayed in a fixed fixed area may be set as a specific point for search purposes.

  ADVANTAGE OF THE INVENTION According to this invention, the technique which can perform a point search conveniently is provided.

  An embodiment of the present invention will be described below with reference to the drawings.

  FIG. 1 is a schematic configuration diagram of an in-vehicle navigation device 1000 to which an embodiment of the present invention is applied. As shown in the figure, the in-vehicle navigation device 1000 of this embodiment includes an arithmetic processing unit 1, a display 2, a map data storage device 3, a voice input / output device 4, an input device 5, and a wheel speed sensor 6. , A geomagnetic sensor 7, a gyro sensor 8, and a GPS (Global Positioning System) receiver 9.

  The arithmetic processing unit 1 is a central unit that performs various processes. For example, the current location is detected based on information output from the various sensors 6 to 8 and the GPS receiver 9, and map data necessary for display is read from the map data storage device 3 based on the obtained current location information. Further, the read map data is developed in graphics, and a mark indicating the current location is superimposed on the map data and displayed on the display 2. In addition, using the current traffic data received from a beacon (not shown), an FM multiplex broadcasting station, a traffic information distribution center, etc. and the map data stored in the map data storage device 3, the destination and the current location indicated by the user ( The optimum route (recommended route) connecting to the departure place is searched, and the user is guided using the voice input / output device 4 and the display 2.

  The display 2 is a unit that displays graphics information generated by the arithmetic processing unit 1, and is configured by a CRT, a liquid crystal display, or the like. The signal S1 between the arithmetic processing unit 1 and the display 2 is generally connected by an RGB signal or an NTSC (National Television System Committee) signal.

  The map data storage device 3 is composed of a storage medium such as a CD-ROM, DVD-ROM, HDD, or IC card. This storage medium stores map data and the like.

  The map data includes a mesh area identification code (mesh ID) and link data of each link constituting a road included in the mesh area. The link data includes a link identification code (link ID), coordinate information of two nodes (start node and end node) constituting the link, road type information including the link, and the like.

  Further, the map data includes specific point data 320 included in the corresponding mesh area.

  The specific point data 320 includes information related to the name of a specific point (region) on the map. The specific point is a place that can be selected as a destination (or departure point) for travel, a place that can serve as a landmark, or the like. For example, buildings, shops, parks, interchanges, stations, airports, public facilities, sightseeing spots, etc.

  FIG. 2 is a diagram illustrating a configuration of the specific point data 320. As shown in the figure, the specific point data includes the name of the point (reading 321 and kanji 322), and a mesh ID 323 and coordinate information 325 on the map including the point. It also includes other information 326 regarding the point. Other information includes other names of the point, explanations about the point (region), address, telephone number, and the like.

  The specific point data 320 may be stored in the map data storage device 3 in advance, or may be registered / edited by the user.

  Returning to FIG. 1, the description will be continued. The voice input / output device 4 converts the message to the user generated by the arithmetic processing unit 1 into a voice signal and outputs it, and recognizes the voice uttered by the user and transfers the content to the arithmetic processing unit 1.

  The input device 5 is a unit that receives instructions from the user, and includes a hardware switch such as a scroll key and a scale change key, a joystick, a touch panel pasted on a display, and the like.

  The sensors 6 to 8 and the GPS receiver 9 are used for detecting the current location (own vehicle position) by the vehicle-mounted navigation device. The wheel speed sensor 6 measures the distance from the product of the wheel circumference and the measured number of rotations of the wheel, and further measures the angle at which the moving body is bent from the difference in the number of rotations of the paired wheels. The geomagnetic sensor 7 detects the magnetic field held by the earth and detects the direction in which the moving body is facing. The gyro 8 is configured by an optical fiber gyro, a vibration gyro, or the like, and detects an angle at which the moving body rotates. The GPS receiver 9 receives a signal from a GPS satellite and measures the distance between the mobile body and the GPS satellite and the rate of change of the distance with respect to three or more satellites to thereby determine the current location, travel speed, and travel direction of the mobile body. Measure.

  FIG. 3 is a diagram illustrating a hardware configuration example of the arithmetic processing unit 1.

  As illustrated, the arithmetic processing unit 1 has a configuration in which devices are connected by a bus 32. The arithmetic processing unit 1 includes a CPU (Central Processing Unit) 21 that executes various processes such as numerical calculation and control of each device, and a RAM (Random) that stores map data and arithmetic data read from the map data storage device 3. (Access Memory) 22, ROM (Read Only Memory) 23 for storing programs and data, DMA (Direct Memory Access) 24 for transferring data between the memories and between the memory and each device, and graphics drawing A drawing controller 25 that executes and controls display, a video random access memory (VRAM) 26 that stores graphics image data, a color palette 27 that converts image data into RGB signals, and an A that converts analog signals into digital signals / D converter 28 and SCI (Serial Commu) that converts serial signals into parallel signals synchronized with the bus nication interface) 29, a PIO (Parallel Input / Output) 30 for placing parallel signals on the bus in synchronization with the bus, and a counter 31 for integrating the pulse signal.

  FIG. 4 is a diagram illustrating a functional configuration of the arithmetic processing unit 1.

  As shown in the figure, the calculation processing unit 1 includes a user operation analysis unit 41, a route search unit 42, a display processing unit 45, a current position calculation unit 46, and a point search unit 55.

  The current position calculation unit 46 uses the distance data and the angle data obtained as a result of integrating the distance pulse data S5 measured by the wheel speed sensor 6 and the angular acceleration data S7 measured by the gyro 8, respectively, and uses the current position (X ′, Y ′) is calculated periodically.

  The user operation analysis unit 41 receives a request from the user input to the input device 5, analyzes the request content, and controls each unit of the arithmetic processing unit 1 so that processing corresponding to the request content is executed. To do. For example, when the user requests a search for a recommended route, in order to set a destination, the display processing unit 45 is requested to display a map on the display 2, and further, from the current location (departure location) to the destination Requests the route search unit 42 to calculate a route.

  The route search unit 42 uses a Dijkstra method or the like to search for a route that minimizes the cost (for example, travel time) of a route connecting two designated points (current location, destination).

  The display processing unit 45 receives map data in an area required to be displayed on the display 2 from the map data storage device 3, and uses a scale and a drawing method designated by the user operation analysis unit 41, roads, and other maps. A map drawing command is generated so as to draw a mark such as a component, a current location, a destination, and an arrow for a guide route.

  The point search unit 55 searches for a corresponding point from the points included in the specific point data 320 based on information input from the user.

  [Description of Operation] Next, the operation of the vehicle-mounted navigation device 1000 configured as described above will be described.

  When the in-vehicle navigation device 1000 configured as described above receives a route search request from the user, the vehicle-mounted navigation device 1000 performs a route search from the departure point to the destination after setting the departure point and the destination. Then, the searched result is displayed on the display 2 and the route guidance is started.

  In the present embodiment, the setting of a specific point such as the setting of the starting point and the destination can be easily performed by a point search. That is, a point to be set is searched from points registered in the specific point data 320 based on information input by the user, and the searched point can be set as a destination. Hereinafter, such point search processing will be described.

  The departure point may be set by setting the current position obtained by the current position calculation unit 46 as the departure point. Further, the destination may be set by displaying a map on the display 2 in accordance with the user's request and allowing the user to specify the destination on the map.

  [Point Search Processing] When the in-vehicle navigation apparatus 1000 according to the present embodiment receives a point search request from a user, it receives input of information for point search. Then, a point search is performed based on the received information, and the search result is displayed and output. Specifically, the point search process is performed as follows.

  When receiving a point search request from the user, the user operation analysis unit 41 displays a point search mode setting screen 510 as shown in FIG. The user operation analysis unit 41 receives a point search request from the user via the input device 5. Further, a point search mode setting screen 510 is displayed on the display 2 via the display processing unit 45.

  The spot search mode setting screen 510 displays options for setting a mode for searching for a spot from a name, a mode for searching for a spot from a facility, a mode for searching for a spot from a telephone number, and the like. When any mode is selected by the user via the input device 5, the user operation analysis unit 41 instructs the point search unit 55 to perform a point search in the selected mode.

  Hereinafter, a case where the search mode is set to a mode for searching for a location from a name will be described.

  FIG. 6 is a flowchart showing the flow of the point search process when the point search mode is set to the mode for searching from the name.

  In the point search process, display of a search screen (S100), reception of a character (reading) input from the user (S200), search / display of a point starting with the received “reading” (S302 to S310), Confirmation (S316, S318) is performed. This will be specifically described below.

  First, the point search unit 55 displays the search screen 521 on the display screen 520 of the display 2 via the display processing unit 45 as shown in FIG. As shown in the figure, the search screen 521 includes a reading field 522, an array field 524, and a spot list field 527.

  The reading field 522 is a field in which “reading” of the name of the search target point input by the user is displayed in order from the first character.

  A row field 524 is a field in which any one of the characters “A row” of 50 sounds, that is, “Akasana Hamawara” is displayed. Normally, a plurality of consecutive characters (five characters in FIG. 8) are selected and displayed from among characters included in the row due to the size of the display. Characters that are not displayed are sequentially displayed in response to a scroll request from the user.

  The character scroll is scrolled in either the direction from “a” to “wa” or the direction from “wa” to “a” in accordance with a user instruction. In addition, when the last character “wa” is displayed, the first character “a” in “row” is displayed again, and when the first character “a” in “row” is displayed. The last character “WA” of “A” is displayed again.

  The user selects the character “A column” in the row to which the character to be input belongs from the characters displayed in the column field. For example, when the user wants to input “ke”, “ke” belongs to “ka line”, so “ka” is selected from the characters displayed in the column field. Details will be described later.

  A selected character can be determined to be selected by a selection mark 524a. In the present embodiment, the display position of the selection mark 524a does not move. Instead, the character to be selected is scrolled and the display position moves. As a result, the user can select the character of “A” in the row to which the character to be input as a reading belongs.

  The spot list field 527 is a field in which a list of searched spot names is displayed. Normally, the names of the searched points are displayed in the order of 50 sounds. The point list field 527 is scrolled in accordance with a scroll request from the user, like the column field 524.

  The user selects and confirms a search target point from this list.

  A selected character can be determined to be selected by a selection mark 527a. In the present embodiment, the display position of the selection mark 527a does not move. Instead, the point name to be determined can be selected by the user by scrolling the point name to be selected and moving the display position.

  The search screen 521 further includes a button 526 for correcting the number of searched points 523 and the characters displayed in the reading field 522.

  Returning to FIG. Next, the point search part 55 performs a character input reception process (S200). FIG. 7 is a flowchart showing the flow of the character input acceptance process (S200).

  First, the point search unit 55 determines whether (1) a request for scrolling the characters displayed in the row field 524 or (2) a request for correcting the characters displayed in the reading field 522 has been received (S202). ). Specifically, the point search unit 55 determines whether or not the request (1) or (2) has been made based on information input from the user via the input device 5.

  When there is a request for correction (S202 (2)), the point search unit 55 deletes the last character displayed in the reading field 522 and ends the process.

  When there is a request for scrolling the characters displayed in the row field 524 (S202 (1)), the point search unit 55 scrolls and displays the characters displayed in the row field (S206). That is, the point search unit 55 newly sets a plurality of characters from “column” so that the plurality of characters displayed in the currently displayed column field 524 are scrolled and displayed according to the requested scroll direction. Is selected and displayed in the column field 524 again.

  FIG. 9 shows an example in which the column field 524 is scrolled and “MA” is selected.

  On the other hand, if there is no request of either (1) or (2) in S202 (No in S202), the point search unit 55 has passed a predetermined time (for example, 1 second) when there is no scroll request. Whether or not (S208). If it has not elapsed (No in S208), the point search unit 55 returns to S202 and continues the process.

On the other hand, if the state where there is no scroll request has elapsed for a predetermined time or longer (Yes in S208), the point search unit 55 displays the line to which the character selected by the selection mark 524a belongs on the search screen 521. . (S210)
FIG. 10 shows that a row field 525 is newly displayed on the point search screen 521. FIG. 10 shows that “ma” is displayed as a result of selecting “ma” in the column field 524.

  Note that the characters displayed in the row field 525 are scrolled in accordance with the user's scroll request, similarly to the column field 524. Similarly to the column field 525, when the last character of the line is displayed, the first character of the line is displayed again. When the first character of the line is displayed, the last character of the line is displayed again. It is like that. Therefore, in the example of FIG. 10, the characters “ma line” are displayed in the order “memomimu”. In the present embodiment, it is assumed that “wa line” includes the characters “waon”.

  In the row field 525, the selected character can be identified by the selection mark 525a. As with the selection mark 524a, the display position of the selection mark 525a does not move. Instead, the character to be selected is scrolled and the display position moves. Thereby, the user can select a character that the user wants to select.

  Next, the point search unit 55 determines whether or not there has been a character scroll request for the row field 525 from the user (S212). When there is a scroll request, the point search unit 55 scrolls and displays the line of characters displayed in the line field 525 (S214), and returns to S212 to continue the processing.

  On the other hand, when there is no character scroll request for the row field 525 (No in S212), the point search unit 55 determines whether or not there is a request from the user to return to the row field operation processing (S202) (S216). . When there is a request to return (Yes in S216), the point search unit 55 deletes the row field 525 displayed on the search screen 521, returns to S202, and continues the processing. Thereby, for example, even if the user selects the character “A” in S208 in an incorrect manner, the user can make a selection again.

  On the other hand, when there is no request to return to the row field operation process (S202) (No in S216), the point search unit 55 determines whether or not there is a request for confirming the character selected in the row field 525 (S220). ). If there is no confirmation request (No in S220), the point search unit 55 returns to S212 and continues the process.

  On the other hand, when there is a character confirmation request (Yes in S220), the point search unit 55 additionally displays the character selected by the selection mark 525a in the reading field 522 (S222). Then, the line field 525 is deleted, and the character input acceptance process is terminated.

  FIG. 11 shows that “ma” is displayed in the reading field 522 as a result of selecting and confirming “ma” in the row field 525.

  Returning to FIG. As described above, when the character input process ends (S200), the point search unit 55 determines whether or not there is a character in the reading field 522 (S302). When there is no character (No in S302), the point search unit 55 returns to S200 and continues the process.

  On the other hand, when there is a character in the reading field 522 (Yes in S302), the point search unit 55 searches the point name starting with the character in the reading field 522 with reference to the specific point data 420 (S306). Specifically, the spot name starting with the reading in the reading field 522 is extracted with reference to the reading 321 of the spot name in the specific spot data 430.

  Next, the spot search unit 55 displays the spot names searched in S306 in the spot list field 527 in the order of 50 sounds (S308). In addition, the number 523 of the searched spot names is displayed.

  FIG. 11 shows the point list field 527 displaying the names of points whose readings start with “MA” as a result of “MA” being input in the reading field 522.

  Next, the point search unit 55 determines whether or not the user has requested to scroll the point list field 527 (S309). When there is a scroll request (Yes in S309), the spot search unit 55 scrolls and displays the spot list field 527. Note that the scroll is scrolled in the forward direction or the reverse direction in accordance with a scroll direction instruction from the user via the input device 5.

  On the other hand, when there is no scroll request (No in S309), the spot search unit 55 determines whether or not there is an operation related to character input by the user (S312). For example, when there is a scroll request for the column field 524 or the row field 525 or a correction request by pressing the correction button 526 performed in the character input reception process S200, the point search unit 55 relates to the character input. It is determined that there has been an operation.

  When there is an operation related to character input (Yes in S312), the point search unit 55 returns to S200 and continues the process.

  On the other hand, when there is no operation related to character input (No in S312), the spot search unit 55 determines whether or not there is a request to confirm the spot selected by the selection mark 527a as a search target spot (S316). If there is no request to confirm the selected point as a search target point (No in S316), the point search unit 55 returns to S309 and continues the processing.

  FIG. 12 shows a display example of the search screen 521 when “su” is further added to the place where “ma” is input in the reading field 522 in FIG.

  In this case, as shown in the figure, the spot list field 527 displays a list of spot names whose readings start with “mas”.

  FIG. 13 further shows a display example when “Masuta” is entered in the reading field 522.

  In this case, as shown in the figure, the spot list field 527 displays a list of spot names whose readings start with “Masuta”.

  Returning to FIG. On the other hand, when there is a request to confirm the point selected by the selection mark 527a in the point list field 527 as a search target point in S316 (Yes in S316), the point search unit 55 selects the selected point name. Is determined as a search target point (S318). Then, the point search process ends.

  In the example of FIG. 13, when a search target point is requested when the screen 521 shown in the figure is displayed, the point search unit 55 determines “Masutaya Ikuta store” as the search target point. It will be.

  The point search process for searching for a specific point from the name has been described above.

  When the purpose of the point search is, for example, the setting of the departure place (departure place), when the point search process ends as described above, the route search unit 42 determines the point determined by the point search process as the destination (departure place) ) And set. Then, a recommended route from the departure point to the destination is searched.

  In addition, when the point search process is ended, the determined point may be displayed on the display 2 as a map.

  The embodiment to which the present invention is applied has been described above.

  According to the present embodiment, a point search is performed every time one character of “reading” is input. Further, the fields (524, 525) for inputting characters and the searched spot names are displayed on the same screen. Accordingly, it is possible to accept an input following “reading” while notifying the progress of the search.

  In addition, it is possible to notify each time how many point candidates have been narrowed down. Then, when the candidates are narrowed down to a certain number, the target point can be selected from the point list. Therefore, it is not necessary for the user to select from a huge list of points, and a point can be selected when candidates are narrowed down to some extent.

  Further, the search is started even when all the readings of the names of the search target points are not input. Therefore, if several readings are specified, even if the candidate points can be narrowed down to some extent, the readings are not wasted.

  Also, it is not necessary to display all 50 sounds on the screen at the same time for character input. Therefore, the image for accepting character input can be small, and can be applied to a case where the display is small. Further, even when displaying with other images, the screen area can be used effectively.

  In the present embodiment, after the user specifies a line, the user wants to specify a character to be input from among the five characters in the specified line. Therefore, the user's work of selecting and inputting one character from the 50 sounds can be simplified.

  In the present embodiment, the display positions of the selection marks 524a, 525a, and 527a are not normally moved. Instead, the selected object is moved by scrolling. Therefore, the screen area can be effectively utilized by increasing or decreasing the number of selection targets to be displayed.

  Moreover, since the selection mark does not move greatly, the user only needs to see the same position even if scrolling. Therefore, it is convenient for the user.

  The present invention is not limited to the above-described embodiment, and various modifications are possible within the scope of the gist.

  In the above-described embodiment, the aspect in which the point search is performed in the case where the departure place and the destination are set has been described. However, the present invention is not limited to this. When a map display request for a specific point is accepted, a point search from a name may be performed as described above. In this case, a point search is performed from the name of the point input by the user, and the coordinate position on the map of the searched point is specified. Then, the specified point is displayed on the map of the display 2.

  [Embodiment for Searching Points Before Confirming Reading] In the above embodiment, after “reading” is selected and confirmed in the row field 525 (S220 and S222 in FIG. 7), the point is searched. The search results are displayed. Not limited to this, a point list field is a point that starts with a character displayed in the reading field 522 and a character selected by the selection mark 524a (or selection mark 525a) in the row field (or row field 525). 527 may be displayed. In such a case, the spot search unit 55 performs processing as shown in FIG. That is, when a point search request is received, after the search screen is displayed (S100), whether or not a character input, a change of the selected character (or a change of the character in the reading field 522) or an operation to the point list field has been performed. If it is determined and performed, the corresponding interrupt processing S400, S500, and S600 is performed. This series of processing is repeated until the search target point is determined.

  FIG. 19 is a flowchart showing the flow of character input interrupt processing. This flow is started when there is an operation for the column field 524 or the row field 525 or a request for correcting characters in the reading field 522. Since the processing flow is the same as the flow of character input acceptance processing in FIG.

  FIG. 20 shows the flow of interrupt processing when the selected character is changed. This flow is performed when the user changes the character selected in the column field 524 or the row field 525, or when the character input in the reading field 522 changes (if a character is added, the character is (If deleted) interrupt processing. For example, when the character selected by scrolling of S406 and S414 in FIG. 19 is changed, when a character is added to the reading field 522 by S422, when one character of the reading field 522 is deleted by S424, the processing is started. The

  Then, the point search unit 55 searches the point of the character starting with the character in the reading field 522 and the character selected by the selection mark 524a or 525a with reference to the specific point data 420 (S502). Subsequently, the spot search unit 55 displays the searched spot name in the spot field 527 (S504), and ends the interrupt process.

  FIG. 14A shows a display example when “sa” is selected in the column field 524. As shown in the figure, the names of points starting with “sa” are displayed in a list.

  FIG. 14B shows a display example when “su” is selected in the row field 525 when “ma” has already been entered in the reading field 522. As shown in the figure, the names of points starting with “mas” are displayed in a list.

  When one character in the reading field 522 is deleted, a list of point names starting with “reading” remaining after deletion is displayed.

  FIG. 21 shows a flow of interrupt processing (S600) when an operation is performed on the point list field. As shown in the figure, in this process, the point search unit 55 determines whether the request made by the user is a request for scrolling a point list or a request for finalizing a point (S602). In the case of a point list scroll request, the point search unit 55 scrolls and displays the point list (S604), ends the interrupt processing, and returns to the flow shown in FIG. On the other hand, in the case of a request for confirming the spot name selected by the selection mark 527a, the spot search unit 55 determines the spot name selected as a spot for search (S605) and ends the spot search process.

  As described above, the embodiment has been described in which the point is searched and displayed as needed based on the selected character before the reading is confirmed.

  In the embodiment described above, when there is no character in the reading field 522, all spot names included in the specific spot data 320 may be displayed in the spot list field 527. .

  In addition, when a certain character is added as a reading of the point name, if there are no candidates to be displayed in the point list field 527, the character may not be added to the reading field 522.

  In such a case, for example, the character may be displayed differently from other characters so that it can be determined that the character cannot be added to the reading field 522. In FIG. 15, the meshed characters cannot be added to the reading field 522.

  Such an aspect can be achieved as follows. That is, as described with reference to the flowchart of FIG. 6, the point search unit 55 searches for a point name starting with “read” in the reading field 522 (S306), and further reads all the searched point names. The next reading after “Reading” in the field 522 is checked. Then, the characters of the next reading are grouped into a character group Y. In addition, the character of “row” in the row to which the character included in the character group Y belongs is also examined. Then, as a result of the examination, the obtained characters are collected to form a character group X.

  In the character input acceptance process S200, when the row field 524 is displayed, the characters included in the character group X examined above are displayed normally, and the characters not included are displayed by meshing. Further, even if a predetermined time elapses without a scroll request being made while the meshed character is selected by the selection mark 524a (S208), the process does not proceed to S210 but proceeds to S202.

  Further, when the row field 525 is displayed, characters included in the character group Y examined above are displayed normally, and characters not included are displayed by meshing. Then, even if the meshed character is selected by the selection mark 525a and a confirmation request is made (S220), the process proceeds to S212 without proceeding to S222.

  As described above, when a character is added as a reading of the point name, if there is no candidate to be displayed in the point list field 527, the character cannot be added to the reading field 522. .

  In the above description, characters that cannot be added to the reading field 522 are displayed by meshing. However, such characters may not be displayed. FIG. 16 shows a display example of the search screen 521 in which characters that cannot be added to the reading field 522 are not displayed.

  In the above embodiment, the selection target is moved without moving the display positions of the selection marks 524a, 525a and 527a. However, the selection marks 524a, 525a and / or 527a may be moved. Good. FIG. 17 shows a display example of the search screen 521 in such a case.

  Moreover, although the said embodiment demonstrated the example which displayed the character and row | line | column of the row | line | column vertically, you may display horizontally.

  In the above-described embodiment, when a request from a user is received, a mode of receiving mainly via the input device 5 has been described. However, the request may be received via the voice input device 4. In such a case, a request from the user may be received by voice recognition.

  In addition, although the example which applied this invention to the vehicle-mounted navigation apparatus was demonstrated, this invention is applicable also to navigation apparatuses other than vehicle-mounted.

FIG. 1 is a schematic configuration diagram of an in-vehicle navigation device 1000. FIG. 2 is a diagram illustrating a configuration example of specific point data stored in the map data storage device 3. FIG. 3 is a diagram illustrating a hardware configuration of the arithmetic processing unit 1. FIG. 4 is a diagram illustrating a functional configuration of the arithmetic processing unit 1. FIG. 5 is a diagram illustrating a display example of a setting screen for the point search mode. FIG. 6 is a flowchart showing an outline of the point search process of the vehicle-mounted navigation device 1000. FIG. 7 is a flowchart showing the flow of the character input acceptance process (S200) of FIG. FIG. 8 is a diagram illustrating a display example of the search screen (before reading input). FIG. 9 is a diagram illustrating a display example of the search screen (scrolling characters in the row). FIG. 10 is a diagram illustrating a display example (line display) of the search screen. FIG. 11 is a diagram showing a display example of the search screen (“MA” is input for reading). FIG. 12 is a diagram showing a display example of the search screen (“Masa” is input for reading). FIG. 13 is a diagram showing a display example of the search screen (“Masa” is input for reading). FIGS. 14A and 14B are diagrams showing a display example of the search screen (an aspect in which a point list is displayed as needed). FIG. 15 is a diagram showing a display example of the search screen (characters that cannot be added to reading are meshed). FIG. 16 is a diagram illustrating a display example of the search screen (characters that cannot be added to reading are not displayed). FIG. 17 is a diagram illustrating a display example of the search screen (a mode in which the selection mark is moved). FIG. 18 is a flowchart showing an outline of point search processing in a mode for displaying a point list as needed. FIG. 19 is a flowchart showing the character input interrupt process of FIG. FIG. 20 is a flowchart showing interrupt processing for changing the selected character in FIG. FIG. 21 is a flowchart showing an interrupt process for an operation on the point list of FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Arithmetic processing part, 2 ... Display, 3 ... Map data storage device, 4 ... Voice input / output device, 5 ... Input device, 6 ... Wheel speed sensor, 7 ... Geomagnetic sensor, 8 ... gyro, 9 ... GPS receiver, 21 ... CPU, 22 ... RAM, 23 ... ROM, 24 ... DMA, 25 ... drawing controller, 26 ... VRAM, 27 ... color palette, 28 ... A / D converter, 29 ... SCI, 30 ... PIO, 31 ... counter, 41 ... user operation analysis unit, 42 ... Route search unit, 45 ... Display processing unit, 46 ... Current position calculation unit, 55 ... Point search unit

Claims (8)

A storage device for storing specific point information including the name of a specific point on maps,
And reading accepted means for performing the reception processing of the reading of the point,
Each time the reading of the point is received by the reading receiving unit, a search unit that searches for a point having a name starting with the reading from among the specific points included in the specific point information;
Search result display means for displaying the results searched by the search means ,
The reading acceptance means is
Even when the search result display means displays the searched result, it is determined whether or not there is a reading input operation, and if there is a reading input operation, a reading acceptance process for the point is performed,
The search means includes
Even when the search result display means displays the searched result,
Every time a reading of the point is received by the reading receiving means, a point with a name starting with the reading is searched from the specific points included in the specific point information.
Navigation equipment, characterized in that. A navigation device according to claim 1,
The reading receiving means adds the received reading to the readings received so far every time a character reading of the point is received,
Said retrieval means, for each reading of the point by the read reception unit receives a character from among the specific points included in the specific point information, searching for a point, a name beginning with reading accepted by the read reception means A navigation device characterized by that . A navigation device according to claim 1 or 2,
The reading acceptance means is
Line selection accepting means for accepting selection of any of the lines constituting the 50 sounds;
And the character selection receiving means for receiving one of the selection of characters belonging to a row that has been received by the row selection receiving means,
The newly accepted character in the character selection receiving means, only contains and means to add to the reading that has received so far,
The row selection receiving means
A navigation device characterized in that when a state in which there is no change request continues for a predetermined time or longer, a row selected at that time is set as a row selected by a user . A navigation device according to claim 3,
The row selection accepting means displays characters belonging to a line of 50 sounds, accepts selection of any character from the displayed characters,
The navigation device characterized in that the character selection accepting means displays a character belonging to a line to which the character accepted by the line selection accepting means belongs, and accepts selection of any of the displayed characters . A navigation apparatus according to any one of claims 1-4,
The reading acceptance means is
In addition to displaying character candidates, place character selection focus on one of the character candidates,
Scrolls the character candidates according to the scroll request,
When the confirmation request is received, the character selected by the user is identified based on the character candidate in which the character selection focus is arranged,
The search result display means includes:
Display the searched point as an option, and place a point selection focus on one of the options,
Scroll through the options according to the scroll request,
When the confirmation request is received, the option where the point selection focus is arranged is identified as the point selected by the user,
The navigation apparatus according to claim 1, wherein the character selection focus and the point selection focus have a fixed position on the screen and are arranged side by side . The navigation device according to claim 5,
The reading acceptance means is
While displaying the line which comprises 50 sound as a line candidate, the 1st focus is arrange | positioned to any line candidate,
Scroll line candidates according to the scroll request,
When the confirmation request is received, the line selected by the user is identified based on the line candidate where the first focus is arranged,
While displaying the character which belongs to the specified line as a character candidate, the 2nd focus is arranged in any character candidate,
Scrolls the character candidates according to the scroll request,
When the confirmation request is received, the character candidate in which the second focus is arranged is identified as the character selected by the user,
The navigation apparatus according to claim 1, wherein the first focus and the second focus have a fixed position on the screen and are arranged side by side . The navigation device according to any one of claims 1 to 6,
  The reading acceptance means confirms the selected reading according to the reading confirmation request,
  The search means includes
  Search for points with names that start with a confirmed reading and a reading that is selected but not yet confirmed
A navigation device characterized by that. A navigation device location search method comprising:
The navigation device
A storage device for storing specific point information including the name of the specific point on the map;
And reading reception step of performing the reception processing of the reading of the point,
Each time the reading of the point is accepted by the reading acceptance step, a search step of searching for a point having a name starting with the reading from among the specific points included in the specific point information;
A search result display step for displaying a result searched by the search step ;
The reading acceptance step includes:
Even when the search result is displayed, it is determined whether or not there is a reading input operation. If there is a reading input operation, a reading acceptance process for the point is performed,
The search step includes
Even when displaying the search results,
Each time the reading of the point is accepted by the reading acceptance step, the point of the name starting with the reading is searched from the specific points included in the specific point information.
Point search method of navigation equipment, characterized in that.

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