JP2011169622A - Mobile navigation system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a mobile navigation system which is made capable of acquiring many broadcasted peculiar names such as store names and improved in convenience. <P>SOLUTION: The mobile navigation system having the function of receiving broadcasting signals includes a first peculiar name extracting part which performs character recognition processing of image data based on the received broadcasting signals and extracts a peculiar name from recognized characters and/or a second peculiar name extracting part which performs voice recognition processing of voice data based on the received broadcasting signals and extracts the peculiar name from the recognized characters, and further includes a peculiar name registration part which registers in a storage part the peculiar name extracted by the first peculiar name extracting part and/or the second peculiar name extracting part. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a mobile navigation device having a broadcast receiving function.

  Conventionally, various mobile navigation devices (particularly in-vehicle navigation devices) having a function of receiving television broadcasts and radio broadcasts have been developed.

  As such a mobile navigation device, for example, in Patent Document 1, a destination (a famous place, historic site, sightseeing spot, restaurant, event spot, etc.) is specified by an operation on an EPG (electronic program guide) acquired by television broadcasting. Then, an in-vehicle navigation device is disclosed in which the obtained EPG position specifying information is transmitted to the navigation system and the destination setting is simply performed.

JP 2008-170157 A

  However, in actuality, the EPG often does not include a unique name such as a store name. In the in-vehicle navigation device of the above-mentioned Patent Document 1, even if the user views a television broadcast and finds a place where he / she wants to go, There was a problem that the destination could not be set in many cases.

  In view of the above problems, an object of the present invention is to provide a mobile navigation device that can acquire a large number of unique names such as broadcasted store names and has improved convenience.

To achieve the above object, the present invention provides a mobile navigation device having a function of receiving a broadcast signal.
Character recognition processing is performed on image data based on the received broadcast signal, and a first unique name extraction unit that extracts a unique name from the recognized character and / or audio data based on the received broadcast signal A second unique name extraction unit that performs voice recognition processing and extracts a unique name from the recognized character;
The configuration further includes a unique name registration unit that registers the unique name extracted by the first unique name extraction unit and / or the second unique name extraction unit in the storage unit.

  According to such a configuration, since unique names are extracted and registered from broadcast image data and / or audio data, it is possible to acquire many unique names such as store names and effectively use the acquired unique names. This improves convenience.

Further, in the above configuration, a display control unit that causes the display unit to display a list of unique names registered in the storage unit by the unique name registration unit;
A destination setting unit that sets the position of the unique name selected in the list display as a destination for route guidance may be provided.

  According to such a configuration, if the user selects a store or the like that is broadcast and interested in the list display, the selected store or the like is set as a destination, and the route guidance guides the user to the store or the like. it can.

  In the above configuration, the destination setting unit sets the position as an additional destination when the distance between the position of the unique name selected in the list display and the currently set destination is equal to or less than a predetermined distance. It is good also as composition which performs.

  According to such a configuration, if the destination to be headed is close to the selected store or the like, the selected store or the like is set as the additional destination, and the user can go to the store or the like.

  Moreover, the said structure WHEREIN: The said destination setting part is good also as a structure which performs a setting when the distance of the position of the specific name selected in the said list | wrist display and the present mobile body position is below a predetermined distance.

  According to such a configuration, if the selected store or the like is close to the current moving body position, the destination is set in the selected store or the like, and the user can go to the store or the like.

  In any one of the configurations described above, the first unique name extraction unit and / or the second unique name extraction unit may extract only a unique name of a preset genre.

  According to such a configuration, only the unique name of the genre desired by the user can be extracted and registered, which is highly convenient.

  According to the mobile navigation device of the present invention, it is possible to acquire many unique names such as broadcasted store names, and convenience is improved.

It is a block block diagram of the navigation apparatus which concerns on one Embodiment of this invention. It is a flowchart regarding a unique name extraction / registration process and point registration using a registered unique name. It is a flowchart regarding the destination setting / memo function using the registered unique name. It is a figure which shows an example of the still image data of a television broadcast. It is a figure which shows an example of a specific name list display. It is a flowchart which shows the modification of the destination setting process. It is a flowchart which shows another modification of the destination setting process. It is a figure which shows an example of a genre setting screen.

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

  FIG. 1 shows a block diagram of a navigation device 100 according to an embodiment of the present invention. The navigation device 100 is mounted on a vehicle, specifies the current location of the vehicle (own vehicle position) based on radio waves received from a GPS (Global Positioning System) satellite, and shows a map of the vicinity of the vehicle along with the vehicle position. The main function is to display a navigation screen and guide the vehicle to the destination along the guide route, and also has a television broadcast receiving function.

  As shown in FIG. 1, a navigation device 100 includes a tuner 1, a demodulator 2, a decoder 3, an image processor 4, an audio processor 5, a GPS unit 6, a gyro / acceleration sensor 7, and an interface. Unit 8, control unit 9, storage device 10, drawing unit 11, display control unit 12, display unit 13, sound source circuit unit 14, speaker 15, interface unit 16, hard key 17, A position detection unit 18, a touch panel 19, and an antenna 20 are provided.

  The antenna 20 receives a terrestrial digital broadcast wave, and the tuner 1 selects a signal of a specific channel from the digital broadcast signal received from the antenna 20. The demodulator 2 demodulates the selected signal and extracts a TS (transport stream). The decoder 3 creates a video stream and an audio stream from the extracted TS, decodes the created video stream, sends a digital video signal to the control unit 9 and the image processing unit 4, and decodes the created audio stream The digital audio signal is sent to the control unit 9 and the audio processing unit 5. Broadcast video is displayed by the video / audio signal sent to the control unit 9 to generate broadcast audio, and the user can watch the broadcast.

  The image processing unit 4 and the audio processing unit 5 have a dictionary DB (not shown) in which unique names such as store names and facility names are described, and process still image data and audio data to extract unique names. To do. Further, the dictionary DB may be configured to be included in the storage device 10.

  The GPS unit 6 includes a receiving antenna, a tuner, and the like. The GPS unit 6 processes radio waves received from GPS satellites and extracts positioning data. The retrieved positioning data is sent to the control unit 9 via the interface unit 8. The control unit 9 identifies the vehicle position based on the positioning data sent from the GPS unit 6.

  The navigation device 100 employs a so-called hybrid system, and is provided with a gyro / acceleration sensor 7 for detecting the direction and acceleration of the vehicle. The detection signal of the gyro / acceleration sensor 7 is sent to the control unit 9 via the interface unit 8, and the control unit 9 specifies the direction and acceleration of the vehicle based on these signals.

  The control unit 9 performs overall control of the navigation device 100 and executes various processes such as vehicle position specification and route search. The control unit 9 is constituted by a microcomputer, for example, and includes a CPU 9a, a RAM 9b, and a ROM 9c.

  The storage device 10 can employ an HDD, a memory IC chip, or the like, and stores a map information DB (database) 10a necessary for displaying a navigation screen or searching for a route.

  The map information DB 10a includes map data, drawing parameters to be referred to when drawing a navigation screen based on the map data, and voice data used for generating voice for route guidance and other purposes. The map data includes road data and background data including water system data, facility data, and the like regarding coastlines, rivers, and the like. The control unit 9 partially retrieves data necessary for the operation to be executed from the map information DB 10a and refers to the data.

  The map information DB 10a also stores unique name data such as store names in association with position data, and is used for destination registration and route guidance destination setting.

  In addition to the map information DB 10a, the storage device 10 also stores a unique name DB 10b, a spot registration DB 10c, and a memo DB 10d, which will be described later.

  The drawing unit 11 is an IC chip that includes a drawing-dedicated CPU and the like, and creates image data for a navigation screen, image data for an operation screen, and the like based on an instruction from the control unit 9. The image data created by the drawing unit 11 is sent to the display control unit 12 and stored in the RAM included in the display control unit 12. The display control unit 12 sends an image display signal to the display unit 13 based on the stored image data, and causes the display area of the display unit 13 to display a screen related to the image data. As the display unit 13, an LCD, an organic EL display, or the like is used. In the television broadcast viewing mode, the control unit 9 sends the video signal from the decoder 3 to the display control unit 12, and the broadcast screen is displayed on the display unit 13.

  The sound source circuit unit 14 generates an analog audio signal for route guidance and other uses based on the audio data sent from the control unit 9. The speaker 15 generates sound based on the generated analog audio signal. In the television broadcast viewing mode, the control unit 9 sends the audio signal from the decoder 3 to the sound source circuit unit 14, and broadcast audio is generated from the speaker 15.

  The hard keys 17 and the touch panel 19 are for giving instructions to the navigation device 100. When one of the keys constituting the hard key 17 is pressed, a signal notifying that the key is pressed is sent to the control unit 9 via the interface unit 16.

  The touch panel 19 is, for example, a pressure-sensitive panel having transparent electrodes arranged in a grid pattern, and is disposed on the display area of the display unit 13. When the touch panel 19 is pressed, the position detection unit 18 generates a signal for notifying the coordinate information of the pressed position based on the voltage signal sent from the touch panel 19. This signal is sent to the control unit 9 via the interface unit 16.

  Next, the unique name extraction / registration process in the navigation device 100 and the point registration using the registered unique name will be described with reference to the flowcharts of FIGS.

  Here, when the TV broadcast viewing mode is selected by operating the hard key 17, the tuner 1, the demodulator 2 and the decoder 3 start operating, a broadcast screen is displayed on the display unit 13, and broadcast from the speaker 15. Voice is generated and the flowchart of FIG. 2 is started.

  First, in step S1, unique name extraction / registration processing is started.

  Specifically, the image processing unit 4 performs character recognition processing on the acquired still image data while acquiring still image data from the decoder 3 at regular time intervals, and refers to the dictionary DB from the recognized characters. To extract the unique name. Note that the still image data that has been processed is sequentially discarded.

  For example, in the case of still image data as shown in FIG. 4, the image added by editing by the broadcaster shown in FIG. 4A is recognized as characters, and “○ ×” of the photographed signboard shown as B in FIG. The image “ya” is also recognized, and the store name “X × ya” is extracted.

  The voice processing unit 5 performs voice recognition processing on the recorded voice data while recording the voice data from the decoder 3, and extracts a unique name from the recognized characters by referring to the dictionary DB. Note that the recorded audio of the part for which processing has been completed is sequentially discarded.

  Then, the control unit 9 sequentially registers the unique names extracted by the image processing unit 4 and the sound processing unit 5 in the unique name DB 10 b stored in the storage device 10. At this time, the unique name already registered in the unique name DB 10b is not registered. The unique names registered in the unique name DB 10b may all be deleted when the navigation apparatus 100 is turned off.

  After step S1, the unique name extraction / registration process is continued while the unique name list display operation is not performed (N in step S2). The unique name list display operation may be performed using a dedicated key included in the hard key 17 or may be performed using a soft button displayed on the display unit 13.

  When the unique name list display operation is performed (Y in step S2), the control unit 9 instructs the drawing unit 11 based on the unique name data currently stored in the unique name DB 10b, A unique name list is displayed instead of the broadcast screen (step S3). The unique name extraction / registration process is continued.

  Here, FIG. 5 shows an example of the unique name list display. As shown in FIG. 5, the unique names are displayed in a list in the unique name display field C, and the scroll button D can be used to scroll the unique names. Adjacent to the unique name display field C, a point registration button E, a destination setting button F, and a memo button G are displayed. The unique name and each button can be selected by the touch panel 19.

  If one or more unique names are selected in the unique name list display and the point registration button E is selected, the process proceeds to step S4, and the control unit 9 displays a map whose name matches the selected unique name. It is determined whether or not it exists in the information DB 10a. Here, the unique name data is stored in the map information DB 10a in association with the position data as described above.

  If there is a matching name (Y in step S4), the process proceeds to step S6, and the control unit 9 registers the position data corresponding to the matching name in the point registration DB 10c (part of the plurality of selected unique names). If they match, the position data corresponding to the matched name is registered). Thereafter, for example, on the navigation screen displayed on the display unit 13, a flag or the like may be displayed at a position registered in the spot registration DB 10c.

  On the other hand, if there is no matching name (N in Step S4), the process proceeds to Step S5, and the control unit 9 instructs the drawing unit 11 to display on the display unit 13 that the point cannot be registered.

  Further, when one destination name is selected after the one name is selected in the list of unique names in step S3, the process proceeds to step S7 in FIG. It is determined whether or not a matching name exists in the map information DB 10a.

  If there is a matching name (Y in step S7), the process proceeds to step S8, and the control unit 9 sets position data corresponding to the matched name as a destination for route guidance. In step S9, the control unit 9 searches for a route from the current vehicle position to the set destination and starts route guidance.

  On the other hand, if there is no matching name (N in step S7), the process proceeds to step S10, and the control unit 9 instructs the drawing unit 11 to display on the display unit 13 that the destination cannot be set.

  When one or more unique names are selected in the unique name list display in step S3 and the memo button G is selected, the process proceeds to step S11 in FIG. 3, and the control unit 9 selects the selected unique name. Is registered in the memo DB 10d.

  After the registration, when the memo list display operation is performed by the hard key 17 or the touch panel 19, the control unit 9 reads the unique name data registered in the memo DB 10d, and the drawing unit 11 reads the unique name data based on the read unique name data. An instruction is given to display on the display unit 13 a memo list in which the read unique names are displayed as a list.

  As described above, in the present invention, since the unique names of stores broadcasted on television are extracted and displayed in the unique name list, the selected stores etc. can be selected by selecting the stores that the user is interested in. Point registration and destination setting can be performed, and the user can easily go to a store or the like that is interested. In addition, the unique name memo function allows the user to register stores, etc. that are interested in the database for the time being, and display the memo list later to check the stores. I can prevent it.

  As for destination setting, a plurality of unique names may be selected in the unique name list display. In this case, if there are a plurality of names that match the map information DB 10a among the plurality of selected unique names in step S7 (Y in step S7), the process proceeds to step S8, and the position data corresponding to the matched names Is set as the destination. At that time, it is possible to search for a route through the position data corresponding to the plurality of matching names in order from the current position (step S9).

  Moreover, the flowchart of FIG. 6 shows the modification of the process regarding a destination setting.

  Steps S1 to S3 are the same as in FIG. 2 described above. When one unique name is selected in the unique name list display and the destination setting button F is selected, the process proceeds to step S12. In step S12, the control unit 9 determines whether or not a name that matches the selected unique name exists in the map information DB 10a.

  If there is a matching name (Y in step S12), the process proceeds to step S13, and the control unit 9 determines whether or not a route guidance destination has already been set. If the destination is not set (N in Step S13), the process proceeds to Step S15, and the control unit 9 sets the position data corresponding to the matched name as the destination for route guidance. In step S16, the control unit 9 searches for a route from the current vehicle position to the set destination and starts route guidance.

  If the destination has already been set in step S13 (Y in step S13), the process proceeds to step S14, and the control unit 9 calculates the distance between the position of the matched name and the currently set destination, It is determined whether or not the calculated distance is equal to or less than a predetermined distance. If the distance is equal to or smaller than the predetermined distance (Y in step S14), the process proceeds to step S17, and the control unit 9 sets position data corresponding to the matched name as an additional destination. In step S18, the control unit 9 searches for a route to the destination set in advance using the additional destination as a waypoint, and starts route guidance.

  If the calculated distance is not less than or equal to the predetermined distance in step S14 (N in step S14), the process proceeds to step S19, and the control unit 9 instructs the drawing unit 11 to not set the destination on the display unit 13. Display.

  If there is no matching name in step S12 (N in step S12), the process proceeds to step S20, and the control unit 9 instructs the drawing unit 11 to display on the display unit 13 that the destination cannot be set. Let

  According to this, if the destination that has already been set is close to the store selected in the unique name list, the store will be located in the area you are about to go to. As an additional setting, you can head there. On the other hand, if the destination already set is far from the store selected in the unique name list, it is considered difficult to go to the store, so the destination is not additionally set.

  Note that a plurality of unique names may be selected in the unique name list display. In this case, if there are a plurality of names that match the map information DB 10a among the plurality of selected unique names (Y in step S12), the process proceeds to step S13, and if the destination has already been set ( In step S13 Y), the process proceeds to step S14. If there are a plurality of distances between the position of the matched name and the set destination at the predetermined distance or less in step S14 (Y in step S14), the process proceeds to step S17, and the position data is added to the additional destination. In step S18, a route to a destination set in advance using a plurality of additional destinations as a waypoint may be searched and route guidance may be started. If the destination is not set in step S13 (N in step S13), the process proceeds to step S15, the position corresponding to the matched name is set as the destination, and the set destination is set in step S16. It is only necessary to search for a route through and start route guidance.

  Moreover, the flowchart of FIG. 7 shows another modification of the process regarding destination setting.

  Steps S1 to S3 are the same as in FIG. 2 described above. When one unique name is selected in the unique name list display and the destination setting button F is selected, the process proceeds to step S21. In step S21, the control unit 9 determines whether or not a name that matches the selected unique name exists in the map information DB 10a.

  If there is a matching name (Y in step S21), the process proceeds to step S22, and the control unit 9 calculates the distance between the position of the matching name and the current vehicle position, and whether the calculated distance is equal to or less than a predetermined distance. Determine whether or not. If the distance is equal to or smaller than the predetermined distance (Y in step S22), the process proceeds to step S23, and the position data corresponding to the matched name is set as the destination of route guidance. In step S24, the control unit 9 searches for a route from the current vehicle position to the set destination and starts route guidance.

  If the calculated distance is not less than or equal to the predetermined distance in step S22 (N in step S22), the process proceeds to step S25, where the control unit 9 instructs the drawing unit 11 to not set the destination on the display unit 13. Display.

  If there is no matching name in step S21 (N in step S21), the process proceeds to step S26, where the control unit 9 instructs the drawing unit 11 to display on the display unit 13 that the destination cannot be set. Let

  According to this, if the current vehicle position is close to the store selected in the unique name list, the selected store etc. can be set as the destination and headed there. On the other hand, if the current vehicle position is far from the store selected in the unique name list, it is considered difficult to go to the store, so the destination setting is not performed.

  Note that a plurality of unique names may be selected in the unique name list display. In this case, if there are a plurality of names that match the map information DB 10a among the plurality of selected unique names in step S21 (Y in step S21), the process proceeds to step S22, where the positions of the matched names and the current If there is a vehicle whose distance from the vehicle position is equal to or less than the predetermined distance (Y in step S22), the plurality of position data are set as destinations in step S23, and the plurality of set destinations are set in step S24 What is necessary is just to search the route | route which goes through in order from the position, and to start route guidance.

  The extraction of the unique name may be the following embodiment.

  First, by a predetermined operation of the hard key 17 or the touch panel 19, the control unit 9 instructs the drawing unit 11 to display a genre setting screen as shown in FIG. On this screen, a list of genres is displayed in the genre display field H, and a setting button I is also displayed.

  When one or more genres are selected by operating the touch panel 19 and the setting button I is selected, the control unit 9 sets the selected genre. The setting destination may be the storage device 10 or the RAM 9b of the control unit 9.

  When the television broadcast viewing mode is entered, the control unit 9 reads the set genre from the storage device 10 or the RAM 9b, and notifies the image processing unit 4 and the audio processing unit 5 of the read genre. Then, the image processing unit 4 performs character recognition processing on the still image data, and extracts only the unique name of the genre set from the recognized characters. In addition, the voice processing unit 5 performs voice recognition processing on the recorded voice data, and extracts only the unique name of the set genre from the recognized characters. At this time, the unique name and the genre are associated and described in the dictionary DB to be referred to.

  Thereby, only the unique name of the genre desired by the user is displayed in the unique name list displayed on the display unit 13, and the convenience is enhanced.

  As mentioned above, although embodiment of this invention was described, if it is in the range of the meaning of this invention, embodiment can be variously changed.

  For example, the present invention may be applied not only to a vehicle-mounted navigation device but also to a portable navigation device for pedestrians.

  Further, in a navigation device capable of receiving radio broadcasts, the radio broadcast audio data may be recognized and the unique names may be extracted.

  Further, the television broadcast to be received is not limited to the digital broadcast but may be an analog broadcast.

DESCRIPTION OF SYMBOLS 100 Navigation apparatus 1 Tuner 2 Demodulation part 3 Decoder 4 Image processing part 5 Sound processing part 6 GPS part 7 Gyro / acceleration sensor 8 Interface part 9 Control part 9a CPU
9b RAM
9c ROM
10 storage device 10a map information DB
10b Unique name DB
10c point registration DB
DB for 10d memo
DESCRIPTION OF SYMBOLS 11 Drawing part 12 Display control part 13 Display part 14 Sound source circuit part 15 Speaker 16 Interface part 17 Hard key 18 Position detection part 19 Touch panel 20 Antenna

Claims (5)

In a mobile navigation device having a function of receiving a broadcast signal,
Character recognition processing is performed on image data based on the received broadcast signal, and a first unique name extraction unit that extracts a unique name from the recognized character and / or audio data based on the received broadcast signal A second unique name extraction unit that performs voice recognition processing and extracts a unique name from the recognized character;
The mobile navigation apparatus, further comprising: a unique name registration unit that registers the unique name extracted by the first unique name extraction unit and / or the second unique name extraction unit in a storage unit. A display control unit for displaying a list of unique names registered in the storage unit by the unique name registration unit;
The mobile navigation apparatus according to claim 1, further comprising: a destination setting unit that sets a position of the unique name selected in the list display as a destination for route guidance.   The destination setting unit sets the position as an additional destination when the distance between the position of the unique name selected in the list display and the currently set destination is a predetermined distance or less. The mobile navigation device according to claim 2.   3. The mobile object according to claim 2, wherein the destination setting unit performs the setting when the distance between the position of the unique name selected in the list display and the current mobile object position is equal to or less than a predetermined distance. Navigation device.   The first unique name extraction unit and / or the second unique name extraction unit extracts only a unique name of a preset genre. Mobile navigation device.

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