JP4493451B2 - In-vehicle device - Google Patents

Description

  The present invention relates to an in-vehicle device including a touch panel that performs various operations.

In recent years, an in-vehicle device that includes a display panel that displays an operation target screen and a touch panel that is provided on the display panel and performs various operations corresponding to the operation target screen is known (for example, see Patent Document 1). In this type of in-vehicle device, by operating an operation button formed on the touch panel, for example, a destination can be selected from a registration list registered in the in-vehicle device, and vehicle route guidance can be executed. it can.
Japanese Patent Laid-Open No. 2003-166843

However, in this case, the screen display is switched to display the registration list in which the destination is registered, the desired destination is selected from the registration list, and the route guidance is started after the selection is completed. There is also a problem that a series of operation procedures such as the above are necessary and the operation becomes complicated.
The present invention has been made in view of the above-described circumstances, and an object thereof is to provide an in-vehicle device that can be easily operated.

To achieve the above object, the present invention includes a display panel for displaying an operation target screen, is provided on the display panel, in the vehicle-mounted device and a touch panel for performing various operations corresponding to the operation target window, the The touch panel is divided into an operation button area in which operation buttons are arranged and a handwritten character input area in which handwritten characters can be input, and includes a navigation unit having a search list for performing vehicle route guidance, the operation target When a character is handwritten in the handwritten character input area of the touch panel in a state where the screen is displayed on the display panel, the character recognition means for recognizing the handwritten character and the predetermined character recognized by the character recognition means depending on the character or character string, and displays the searched number narrowed from the search list, the It is determined whether or not the search target number is within a predetermined number, and if it is not within the predetermined number, a list display button is displayed in the operation button area, and if it is within the predetermined number, or the list display button is operated In this case, the information processing apparatus includes control means for controlling the navigation means so as to display a list of searched information to be searched .

Also, the character recognition means, after the character on the handwriting input area of said touch panel is handwritten, until a predetermined time elapses, when a new character is not handwritten, complete character recognition, It is good also as a structure which outputs the result to the said control means.

  ADVANTAGE OF THE INVENTION According to this invention, the vehicle-mounted apparatus which can be operated easily can be provided.

<First Embodiment>
Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a perspective view showing an external configuration of a navigation device (on-vehicle device) 1 according to the present embodiment. As shown in FIG. 1, the navigation device 1 includes a device main body 10 that is fitted in a predetermined storage space provided on the dashboard 2 of the vehicle, and an operation panel 11 provided in front of the device main body 10. Yes. The operation panel 11 includes a face panel 12 as a frame, a plurality of operation switches 13 provided on the face panel 12, and a display panel 14 fitted in the face panel 12. The display panel 14 displays a map around the current location, the current location of the vehicle, and a route to the destination, thereby providing route guidance.

  As shown in FIG. 2, the operation panel 11 is attached to a storage portion 15 provided in front of the apparatus main body 10 so as to be freely opened and closed. Specifically, as shown in FIG. 3, guide grooves 17 extending in the vertical direction are formed in the surfaces of the side walls 16 on both sides of the storage portion 15, and the protrusions 18 provided on both upper ends of the operation panel 11 are formed as described above. A pusher mechanism 19 is attached to both lower ends of the operation panel 11 while being movably attached to the guide groove 17. The push-out mechanism 19 protrudes toward the front of the apparatus main body 10 and pushes out the lower end portion of the operation panel 11. The push-out mechanism 19 includes a slide bar 20 that is driven to protrude by a motor (not shown). Are connected to the lower side of the operation panel 11 by a shaft pin 21 to support the operation panel 11 rotatably.

  Accordingly, the protrusion 18 moves downward along the guide groove 17 along with the pushing-out operation of the lower end portion of the operation panel 11 by the push-out mechanism 19, so that the operation panel 11 tilts, as shown in FIG. The operation panel 11 is opened, and the front surface of the apparatus main body 10 is exposed. On the contrary, the push-out mechanism 19 pulls back the lower end portion of the operation panel 11 and the projection 18 moves upward along the guide groove 17 so that the operation panel 11 is closed as shown in FIG. The main body 10 is covered with the operation panel 11. The opening / closing operation of the operation panel 11, that is, the start of a motor (not shown) that drives the slide bar 20 is performed based on the operation of the operation switch 13 provided on the face panel 12 of the operation panel 11.

  As shown in FIG. 2, on the front surface of the apparatus main body 10, a card insertion slot 21 into which a card type recording medium such as a memory card is inserted, and a discharge for discharging the card type recording medium from the card insertion slot 21. A button 22, a disc insertion slot 23 into which a disc type recording medium (optical disc) such as a CD (Compact Disc) or DVD (Digital Versatile Disk) is inserted, and an eject button 24 for ejecting the disc type recording medium from the disc insertion slot 23 Etc. are provided. As described above, these insertion ports 21 and 23 are normally covered with the operation panel 11, and the operation ports 13 can be opened by operating the operation switch 13 to access the insertion ports 21 and 23. .

  Next, the configuration of the display panel 14 provided on the operation panel 11 will be described in detail. As shown in FIG. 4, the display panel 14 includes a liquid crystal driving circuit board 30, a liquid crystal panel 31, and a touch panel 32, which are stacked in this order. A resistive film type is used for the touch panel 32, and the transparency (light transmittance) is high, and the display on the liquid crystal panel 31 is visible through the touch panel 32. Therefore, when a menu screen or an operation screen for various operations is displayed on the liquid crystal panel 31, various operations can be performed by touching the touch panel 32 with a fingertip or the like. As described above, in the navigation device 1, in addition to the operation switch 13 provided on the face panel 12, an operation using the touch panel 32 can be performed. As the display panel 14, for example, an organic EL (Electro-Luminescence) panel or the like can be used instead of the liquid crystal panel 31.

  Next, the functional configuration of the navigation device 1 will be described in detail. In FIG. 5, a control unit (control unit) 100 centrally controls each unit of the navigation device 1, and includes a main CPU (Central Processing Unit) 101 as a calculation / control unit, a ROM 102, a DRAM 104, and an SRAM 106. And a storage unit 110. A ROM (Read Only Memory) 102 stores a control program executed by the main CPU 101, data, and the like. When the main power supply of the navigation apparatus 1 is turned on, the main CPU 101 reads out and executes the control program, data, and the like stored in the ROM 102, whereby the control operation of each unit is performed. A DRAM (Dynamic Random Access Memory) 104 temporarily stores programs read from the ROM 102 by the main CPU 101, calculation results, data being calculated, and the like. An SRAM (Static Random Access Memory) 106 is a backup of data stored in the DRAM 104 when the main power of the navigation device 1 is turned off, and power is supplied from the vehicle battery even after the main power is turned off. The stored contents to be backed up can be retained even after the main power is turned off.

  The main storage unit 120 stores various application programs and data having a relatively large capacity, and includes, for example, a hard disk device. Examples of what is stored in the main storage unit 120 include a program for route guidance, a program for display control of the display panel 14, and map data for route guidance. The main storage unit 120 stores a search list for searching for 50 sounds.

  The recording medium reading unit 130 reads the data recorded on the card type recording medium or the disk type recording medium described above under the control of the control unit 100 and outputs the data to the control unit 100. Device, a CD / DVD drive device, and the like. In addition, it is good also as a structure which stores map data in a recording medium and uses this map data for route guidance. The sound output unit 135 outputs music and voice under the control of the control unit 100. For example, in the reproduction of music data recorded on a recording medium, the music read by the recording medium reading unit 130 Data is output to the sound output unit 135, and music is reproduced.

  The display unit 140 displays various types of information such as a map under the control of the control unit 100, and includes a drawing circuit 142, a liquid crystal driving circuit 144, and the liquid crystal panel 31 described above. The drawing circuit 142 receives a drawing command DSS including map data from the control unit 100 and controls the liquid crystal driving circuit 144 to perform display based on the drawing command DSS. The drawing circuit 142 includes a drawing processor 146 and a VRAM 148. Yes. The drawing processor 146 generates drawing data (for example, bitmap image data) to be displayed on the liquid crystal panel 31 based on the drawing command DSS, and a VRAM (Video RAM) 148 holds drawing data. The liquid crystal driving circuit 144 sequentially receives the drawing data held in the VRAM 148 and displays it on the liquid crystal panel 31 based on the drawing data. The drawing circuit 142 and the liquid crystal drive circuit 144 are mounted on the liquid crystal drive circuit board 30 described above.

  The position detection unit 150 includes an antenna (may be a receiver) that receives GPS radio waves transmitted from a GPS (Global Positioning System) satellite, and based on the GPS radio waves, position coordinates indicating the current location of the vehicle, and a traveling direction Are output to the control unit 100 as the position detection signal PS. At the time of route search, the control unit 100 (navigation means) searches for a guidance route from the current point to the destination indicated by the position detection signal PS and displays the search result on the display unit 140. Based on the position detection signal PS, the moving state of the current position is displayed on the display unit 140 together with a map to perform route guidance.

  The FM multiplex reception processing unit 160 receives FM multiplex broadcast waves under the control of the control unit 100, extracts information such as VICS information (road traffic information) such as traffic jams, accidents, traffic regulations, and weather forecasts, and the control unit 100. Is output. Further, the beacon reception processing unit 170 receives VICS information related to the road on which the vehicle is traveling under the control of the control unit 100 and outputs the VICS information to the control unit 100. The information such as the VICS information and the weather forecast is information relating to traffic, and is information that assists the driver in driving the vehicle (hereinafter referred to as travel assistance information). In the present embodiment, the FM multiplex reception processing unit 160 and the beacon reception processing unit 170 acquire character information indicating the driving assistance information, and this character information is output to the control unit 100 when the driving assistance information is received. . When displaying the driving assistance information on the display unit 140, the control unit 100 generates a drawing command DSS based on the character information received from the FM multiple reception processing unit 160 or the beacon reception processing unit 170, and displays it on the display unit 140. By outputting, the driving assistance information is displayed.

  The TV reception processing unit (TV receiving means) 180 receives a TV (television) broadcast wave under the control of the control unit 100, and outputs TV video and TV sound to the control unit 100, not shown. A TV tuner circuit is provided. The TV video is displayed as a moving image on the liquid crystal panel 31, and the TV sound is output from the sound output unit 135. The radio reception processing unit (radio reception means) 185 receives radio broadcast (AM, FM broadcast) and outputs radio sound to the control unit 100, and includes a radio tuner circuit (not shown). Radio sound is output from the sound output unit 135. In this configuration, when radio sound is output from the sound output unit 135, the channel, frequency, etc. of the received radio broadcast are displayed on the liquid crystal panel 31 in combination with a still image such as an illustration (hereinafter referred to as an “illustration”). Audio screen).

  The vehicle information acquisition unit 200 acquires information related to the traveling state of the vehicle. Specifically, the vehicle information acquisition unit 200 includes an illumination information acquisition unit 202, a vehicle speed pulse acquisition unit 204, and a parking brake operation state acquisition unit 206. The illumination information acquisition unit 202 detects the current (or voltage) of the illumination wiring arranged in the vehicle, and outputs an illumination signal ILS indicating on / off of the small light (vehicle width lamp) of the vehicle to the control unit 100. Is. By detecting the on / off of the small light of the vehicle, it becomes possible to specify the brightness around the vehicle. When the illumination of the small light is indicated by the illumination signal ILS, the control unit 100 draws By controlling the circuit 142, the luminance of the liquid crystal panel 31 is increased, and the display on the liquid crystal panel 31 is prevented from becoming difficult to see.

  The vehicle speed pulse acquisition unit 202 acquires a vehicle speed pulse signal indicating the traveling speed of the vehicle from a computer mounted on the vehicle or a sensor attached to the vehicle, and outputs the vehicle speed pulse signal to the control unit 100 as a vehicle speed signal CSS. The parking brake operation state acquisition unit 204 acquires an operation state of the parking brake lever (or pedal) of the vehicle, and outputs a parking brake state signal PBS indicating whether or not the parking brake is applied. That is, it is specified based on this parking brake state signal PBS whether or not the vehicle is parked, and in particular whether or not the vehicle is running (including a temporary stop state).

  The operation unit 190 includes a switch operation unit 192 and a touch panel operation unit 194. In addition to the operation switch 13 described above, the switch operation unit 192 includes a switch circuit board (not shown) that converts the operation of the operation switch 13 into an electrical signal and outputs the switch signal SS to the control unit 100. In addition to the touch panel 32 described above, the touch panel operation unit 194 includes a touch panel circuit board (not shown) that converts the operation of the touch panel 32 into an electrical signal and outputs the touch signal TS to the control unit 100. The touch signal TS includes coordinate information indicating the touch operation location on the surface of the touch panel 32, whereby the control unit 100 can identify the touch operation location on the touch panel 32. Here, the control unit 100 inputs the switch signal SS and the touch signal TS from the operation unit 190 when the parking brake state signal PBS indicates that the vehicle is not parked for the purpose of safety of traveling. When the vehicle is not parked, various operations are especially prohibited while the vehicle is running. In addition, when the parking brake state signal PBS indicates that the vehicle is not parked, the control unit 100 prevents the driver from paying attention to the TV image and harming the driving safety. The TV image output to the display unit 140 is stopped, and the TV image display when the vehicle is not parked is prohibited.

  In the present embodiment, as shown in FIG. 6, the touch panel 32 is divided into two areas, and an operation button area SA in which operation buttons such as a long press button and a scroll button are arranged, and handwritten characters can be input. And a handwritten character input area TA. This handwritten character input area TA enables operation of the navigation device 1 by inputting handwritten characters in the input area TA. When a handwritten character is input to the handwritten character input area TA, touch signals TS including coordinate information corresponding to the locus of the handwritten character are sequentially output to the control unit (character recognition means) 100. The control unit (character recognition means) 100 sequentially acquires touch signals TS and recognizes characters input to the handwritten character input area TA based on the touch signals TS.

  When the finger or pen leaves the touch panel 32 and the input of the touch signal TS is interrupted, the control unit 100 operates a timer (not shown). When the time measured by the timer exceeds the predetermined time t1, it is considered that the handwritten character input has been completed. This predetermined time t1 is a time sufficiently long to be regarded as the completion of the character input, and the time generated between the immediately preceding character and the next character when the character string is input, This is set to be sufficiently longer than the time from the end of the previous one stroke to the start of the next one stroke in the case where there are a plurality of characters. According to this, since it is not necessary to perform an input completion operation after character input, the operation is simplified, and a problem that character input is completed in the middle of character input can be prevented.

  In this configuration, by providing a specific area (handwritten character input area TA) that allows handwritten characters to be input on the touch panel 32, a handwritten character input screen is displayed each time a handwritten character is input. The navigation device 1 can be easily operated without having to open. The position, size, and range of the handwritten character input area TA can be changed as appropriate.

  Next, the operation of the navigation device 1 will be described with reference to the flowchart shown in FIG. In this configuration, a correspondence relationship between a preset destination candidate and a predetermined character or a predetermined character string (hereinafter referred to as a predetermined character including a character and a character string) is stored, and the touch panel 32 By handwriting the predetermined character in the handwritten character input area TA, the destination candidate assigned to the character can be specified, and the vehicle can be routed to the destination candidate.

  First, initial setting is performed by the user (step S1). Here, the initial setting refers to setting different predetermined characters for each destination candidate preset in the storage unit 110 of the control unit 100. Specifically, if there are “home”, “XX”, “△△”, “◇◇”, “▽▽” as destination candidates registered by the user, these destination candidates are different from each other. This is performed by assigning predetermined characters (for example, “1” to “5”). The initial setting data is stored in the storage unit 110. Once the initial setting is performed, the initial setting data stored in the storage unit 110 is read from the next time, and the following processing is executed. Even in this case, it is possible to appropriately change the initial setting data.

  Next, the user operates the navigation means to display a map screen as an operation target screen on the liquid crystal panel 31 (step S2). In this configuration, the navigation device 1 is controlled by handwriting characters on the touch panel 32 with the map screen displayed. Subsequently, the control unit 100 determines whether or not a predetermined character (a number in the present embodiment) is input to the handwritten character input area TA of the touch panel 32 (step S3). In this determination, when the predetermined character is not input, the process is repeatedly executed until the predetermined character is input. Here, the case where the predetermined character is not input is a case where nothing is input in the handwritten character input area TA, and characters that are not assigned to destination candidates in the initial setting (in this configuration, “ 7 ”,“ 8 ”, numbers that are not assigned to any of the destination candidates, hiragana, alphabets, etc.) are included (hereinafter the same). In addition, when the character which is not allocated to the destination candidate is input, it is good also as a structure which alert | reports that by a display or an audio | voice (hereinafter the same).

  On the other hand, when the predetermined character is input, the control unit (character recognition unit) 100 recognizes the input number based on the touch signal TS output from the touch panel operation unit 194 as needed, and the number The destination candidate assigned to is selected (step S4). Specifically, as illustrated in FIG. 6, when “1” is drawn in the handwriting input area TA, the touch panel operation unit 194 includes a touch signal having coordinate information corresponding to the locus of the handwritten character “1”. TS is output to the control unit 100 as needed, and the control unit 100 recognizes the input character based on these touch signals TS.

  Subsequently, the control unit 100 sets a destination candidate (for example, “home”) assigned to a character-recognized number or the like (for example, “1”) as a destination from among the destination candidates (step S5). Then, route calculation to the set destination is performed, and vehicle route guidance is started toward the destination (step S6). However, even when the route guidance to the destination is being executed, if a predetermined character is input again in the handwritten character input area TA of the touch panel 32, the route guidance being executed is interrupted and a new one is entered. It is possible to execute route guidance to the destination set in.

  In the present embodiment, a destination candidate to which a predetermined character is assigned by handwriting a predetermined character in the handwritten character input area TA of the touch panel 32 while the map screen is displayed on the liquid crystal panel 31. Therefore, the navigation apparatus 1 can be easily operated. In addition, it is possible to easily execute route guidance to the destination by handwriting predetermined characters, so that it is possible to improve entertainment.

  In addition, according to the present embodiment, when a predetermined time t1 has elapsed after the input of the handwritten character in the handwritten character input area TA of the touch panel 32, the subsequent processing is executed assuming that the character input has been completed. As in the prior art, the operation of pressing the input completion button after switching the screen becomes unnecessary, and the navigation device 1 can be easily operated.

  In the above configuration, numbers are used as the predetermined characters, but the present invention is not limited to this. Further, in the above configuration, different predetermined characters are set for the destination candidates registered in advance, and this character is input to the handwritten character input area TA of the touch panel 32, thereby providing route guidance to the destination. Yes, but not limited to this. For example, a correspondence relationship between each facility previously classified by category and a predetermined character is stored, and the predetermined character is handwritten in the handwritten character input area TA of the touch panel 32 to thereby change the predetermined character. It is also possible to select an assigned facility and search for a facility closest to the vehicle among the facilities.

FIG. 8 is a flowchart showing the operation of this configuration.
First, initial setting is performed by the user (step S10). Here, the initial setting refers to setting different predetermined characters (alphabets in the present configuration) in each facility that is stored in the storage unit 110 of the control unit 100 in advance by category. Specifically, “A” is assigned to the gas station, “B” to the convenience store,..., “Y” to the hospital, and “Z” to the library. The initial setting data is stored in the storage unit 110. Once the initial setting is performed, the initial setting data stored in the storage unit 110 is read from the next time, and the following processing is executed. Even in this case, it is possible to appropriately change the initial setting data.

  Next, the user operates the navigation means to display a map screen as an operation target screen on the liquid crystal panel 31 (step S11). In this configuration, the navigation device 1 is controlled by handwriting characters on the touch panel 32 with the map screen displayed. Subsequently, the control unit 100 determines whether or not a predetermined character (alphabet in this configuration) has been input to the handwritten character input area TA of the touch panel 32 (step S12). In this determination, when the predetermined character is not input, the process is repeatedly executed until the predetermined character is input.

  On the other hand, when the predetermined character is input, the control unit (character recognition unit) 100 recognizes the input alphabet based on the touch signal TS output from the touch panel operation unit 194 as needed, and the alphabet The facility assigned to is selected as a search item (step S13). Specifically, when “A” is drawn in the handwriting input area TA, the touch panel operation unit 194 sends a touch signal TS having coordinate information corresponding to the locus of the handwritten character “A” to the control unit 100. The controller 100 recognizes an input character based on the touch signal TS. Subsequently, the control unit 100 selects a facility “gas station” assigned to the recognized predetermined character “A” from among the facilities as a search item.

  Subsequently, the control unit 100 searches for the gas station closest to the vehicle in the selected facility “gas station” (step S14). The search range is set in advance in the storage unit 110, and the search range can be changed as appropriate. In this configuration, the search range is set to 100 km. Then, the control unit 100 displays the search results (shortest route, required time, etc.) on the liquid crystal panel 31 (step S15). In this case, when the user sets the gas station according to the search result as the destination, the route calculation to the set destination is performed, and the route guidance of the vehicle toward the destination is started. If the user does not set the gas station related to the search result as the destination, the process ends with the search result displayed.

  According to this configuration, in a state where the map screen is displayed on the liquid crystal panel 31, the facility to which the predetermined character is assigned by inputting the predetermined character by handwriting into the handwritten character input area TA of the touch panel 32. The item closest to the vehicle can be searched for and displayed. In this case, if necessary, the nearest facility found above can be set as the destination and the route guidance to the destination can be executed. Therefore, the navigation device 1 can be easily performed without switching the screen. Can be operated. In this configuration, the alphabet is used as the predetermined character, but the present invention is not limited to this.

Moreover, it can also be set as the structure which performs a 50 sound search using a search list by inputting a character into the handwritten character input area TA of the touch panel 32. FIG. 9 is a flowchart showing the operation of this configuration.
First, the user operates the navigation means to display a map screen as an operation target screen on the liquid crystal panel 31 (step S20). In this configuration, the navigation device 1 is controlled by handwriting characters on the touch panel 32 with the map screen displayed. Subsequently, the control unit 100 determines whether or not hiragana is input to the handwritten character input area TA of the touch panel 32 (step S21). In this determination, if no hiragana is input, the process is repeatedly executed until the hiragana is input. On the other hand, when hiragana is input, a 50-sound search is performed using the search list stored in the main storage unit 120, and the number of search targets is displayed (step S22). For example, when “to” is entered, all the facilities beginning with “to” are searched, and the number of cases is displayed on the liquid crystal panel 31.

  Subsequently, the control unit 100 determines whether or not the number of search targets is 5 or less (step S23), and if not 5 or less, displays a list display button in the operation button area SA of the touch panel 32. Then, it is determined whether or not the list display button has been pressed for a long time (step S24). Here, the long press means that the list display button is continuously pressed for a predetermined time or longer. On the other hand, if the number of search objects is within 5, the process proceeds to step S25.

  If the list display button is pressed for a long time in step S24, the search target information (name, mark, etc.) is displayed in a list (step S25). This ends the search. On the other hand, if the list display button has not been pressed for a long time, the process returns to step S21, and steps S21 to S24 are repeatedly executed to narrow down the search target. Here, since the search list is stored in the form of a search tree so that 50 sounds can be searched, the search target is narrowed down by sequentially inputting hiragana. Specifically, by entering “U”, “Ki”, “Cho”, “U” ... after “To”, the search target can be narrowed down to “Tokyo Station”. it can.

  In this case, when the user selects and sets the destination from the search target list, the route calculation to the set destination is performed and the vehicle route guidance toward the destination is started. To do. If the user does not select and set a destination from the search target list, the process ends with the search target list displayed.

According to this configuration, in a state where the map screen is displayed on the liquid crystal panel 31, a 50-sound search can be executed by inputting the hiragana by handwriting into the handwritten character input area TA of the touch panel 32. The search object by 50 sound search can be displayed as a list. In this case, if necessary, a destination can be selected from the list and route guidance to the destination can be executed, so that the navigation device 1 can be easily operated.
<Second Embodiment>

  In the first embodiment, by storing the correspondence between a preset destination candidate and a predetermined character, and handwriting the predetermined character in the handwritten character input area TA of the touch panel 32, The configuration of specifying the destination candidate assigned to the predetermined character and guiding the vehicle route toward the destination candidate has been described. In the second embodiment, the TV broadcast channel, It is possible to switch to the channel assigned to the character by storing the correspondence relationship with the character and handwriting the predetermined character in the handwritten character input area TA of the touch panel 32. Since the configuration of the in-vehicle device 1 of the second embodiment is the same as that described in the first embodiment, description thereof is omitted here.

The operation of this embodiment will be described with reference to the flowchart shown in FIG.
First, initial setting is performed by the user (step S30). Here, the initial setting refers to setting different predetermined characters for each channel of the TV broadcast wave received by the TV reception processing unit 180. For example, in the case of the Tokyo area, “1” is assigned to NHK General Broadcast, hereinafter “3” for NHK Educational Broadcast, “4” for NTV, “10” for TV Asahi, TV Tokyo This is done by assigning “12” to. The initial setting data is stored in the storage unit 110. Once the initial setting is performed, the initial setting data stored in the storage unit 110 is read from the next time, and the following processing is executed. Even in this case, it is possible to appropriately change the initial setting data.

  Next, the user operates the TV reception processing unit 180 to display a TV screen as an operation target screen on the liquid crystal panel 31 (step S31). In this configuration, the TV reception processing unit 180 is controlled by handwriting characters on the touch panel 32 while the TV screen is displayed. Subsequently, the control unit 100 determines whether or not a predetermined character (a number in the present embodiment) is input to the handwritten character input area TA of the touch panel 32 (step S32). In this determination, if the predetermined character is not input, the process is repeatedly executed until the character is input.

  On the other hand, when the predetermined character is input, the control unit (character recognition unit) 100 recognizes the input number based on the touch signal TS output from the touch panel operation unit 194 as needed (step S33). ). Specifically, when “1” is drawn in the handwriting input area TA, the touch panel operation unit 194 sends a touch signal TS having coordinate information corresponding to the locus of the handwritten character “1” to the control unit 100. The controller 100 recognizes an input character based on the touch signal TS. In addition, after a predetermined character is input, if there is no new character input before the predetermined time t1 elapses, the character input is completed. For example, if “0” is input before the predetermined time t1 elapses after “1” is input, measurement of the predetermined time t1 is started again after the input of “0”. When the predetermined time t1 elapses, the input character is recognized as “10”.

  Subsequently, the control unit 100 selects the TV channel “NHK general broadcast” assigned to the character-recognized number “1” from the TV channels (step S34), and sets the channel to the TV reception processing unit 180. Outputs a switching signal. The TV reception processing unit 180 that has acquired this signal switches the channel to NHK synthesis via the TV tuner circuit (step S35), and displays the image of the channel on the liquid crystal panel.

  When it is desired to change the TV channel again, a predetermined character (for example, the number “4”) assigned to the TV channel to be viewed on the touch panel 31 is input by handwriting, so that the TV displayed on the liquid crystal panel 31 can be changed. The channel can be changed from NHK General to NTV.

According to the second embodiment, in a state where the TV screen is displayed on the liquid crystal panel 31, the television channel is changed by inputting a predetermined character by handwriting into the handwritten character input area TA of the touch panel 32. Therefore, the in-vehicle device 1 can be easily operated without switching the screen. In addition, since the channel can be changed by handwriting a predetermined character, the entertainment can be improved. In the second embodiment, numbers are used as the predetermined characters. However, the present invention is not limited to this.
<Third Embodiment>

  In the third embodiment, a correspondence relationship between a preset radio broadcast channel and a predetermined character is stored, and the predetermined character is handwritten in the handwritten character input area TA of the touch panel 32. Thus, it is possible to switch to the channel assigned to the predetermined character. Since the configuration of the in-vehicle device 1 of the third embodiment is the same as that described in the first embodiment, description thereof is omitted here.

The operation of the third embodiment will be described with reference to the flowchart shown in FIG.
First, initial setting is performed by the user (step S41). Here, the initial setting refers to setting different predetermined characters for each channel of the radio broadcast wave preset in the radio broadcast reception processing unit 185 in advance. For example, in the case of FM broadcasting in the Tokyo region, “1” is assigned to 76.1 MHz, “2” is assigned to 79.5 MHz, “3” is assigned to 80.0 MHz. Similarly, for AM broadcasting, “11” is assigned to 594 kHz, “12” is assigned to 693 kHz, “13”... Is assigned to 954 kHz. The initial setting data is stored in the storage unit 110. Once the initial setting is performed, the initial setting data stored in the storage unit 110 is read from the next time, and the following processing is executed. Even in this case, it is possible to appropriately change the initial setting data.

  Next, the user operates the radio reception processing unit 185 to display the audio screen as the operation target screen on the liquid crystal panel 31 (step S41). In this configuration, the radio reception processing unit 185 is controlled by handwriting characters on the touch panel 32 while the audio screen is displayed. Subsequently, the control unit 100 determines whether or not a predetermined character (a number in the present embodiment) is input to the handwritten character input area TA of the touch panel 32 (step S42). In this determination, if the predetermined character is not input, the process is repeatedly executed until the character is input.

  On the other hand, when the predetermined character is input, the control unit (character recognition unit) 100 recognizes the input number based on the touch signal TS output from the touch panel operation unit 194 as needed (step S43). ). Specifically, when “1” is drawn in the handwriting input area TA, the touch panel operation unit 194 sends a touch signal TS having coordinate information corresponding to the locus of the handwritten character “1” to the control unit 100. The controller 100 recognizes an input character based on the touch signal TS. In addition, after a predetermined character is input, if there is no new character input before the predetermined time t1 elapses, the character input is completed. For example, if “2” is input before the predetermined time t1 elapses after “1” is input, measurement of the predetermined time t1 is started again after the input of “2”. When the predetermined time t1 elapses, the input character is recognized as “12”.

  Subsequently, the control unit 100 selects the radio channel “Inter FM: 76.1 MHz” assigned to the character recognized number “1” from the preset radio channels (step S44), and receives the radio signal. A signal for switching the channel is output to the processing unit 185. The radio reception processing unit 185 that has acquired this signal switches the channel to “inter FM” via the radio tuner circuit (step S45), and outputs the radio sound from the sound output unit 135.

  When the radio channel is desired to be changed again, the radio channel output from the sound output unit 135 is input by handwriting input to the touch panel 32 the character (for example, “13”) to which the radio channel to be listened is assigned. , “Inter FM” can be changed to “Culture broadcasting: 954 kHz”.

  According to the third embodiment, when a radio screen is displayed on the liquid crystal panel 31, the radio channel is changed by inputting a predetermined character by handwriting into the handwritten character input area TA of the touch panel 32. Therefore, the in-vehicle device 1 can be easily operated without switching the screen. In addition, since the channel can be changed by handwriting a predetermined character, the entertainment can be improved. In the third embodiment, numbers are used as the predetermined characters, but the present invention is not limited to this.

It is a perspective view which shows the external appearance structure of the navigation apparatus which concerns on embodiment of this invention. It is a perspective view which shows the external appearance structure of the said navigation apparatus which shows the time of an operation panel being an open state. It is a figure which shows the mechanism which an operation panel opens and closes. It is a disassembled perspective view which shows the structure of a display panel. It is a block diagram which shows the functional structure of the said navigation apparatus. It is a schematic diagram which shows the handwritten character input area formed in the touch panel. It is a flowchart which shows operation | movement of 1st Embodiment. It is a flowchart which shows operation | movement of a modification. It is a flowchart which shows operation | movement of a modification. It is a flowchart which shows operation | movement of 2nd Embodiment. It is a flowchart which shows operation | movement of 3rd Embodiment.

Explanation of symbols

1 Navigation device (on-vehicle device)
11 Operation Panel 14 Display Panel 31 Liquid Crystal Panel 32 Touch Panel 100 Control Unit (Character Recognition Unit, Control Unit, Navigation Unit)
140 Display Unit 150 Position Detection Unit 160 FM Multiplex Reception Processing Unit 170 Beacon Reception Processing Unit 180 TV Reception Processing Unit (TV Reception Unit)
185 Radio reception processing unit (radio reception means)
190 operation unit 200 vehicle information acquisition unit 206 parking brake operation state acquisition unit SA operation button area TA handwritten character input area

Claims (2)

In an in-vehicle device that includes a display panel that displays an operation target screen, and a touch panel that is provided on the display panel and performs various operations corresponding to the operation target screen.
The touch panel is divided into an operation button area in which operation buttons are arranged and a handwritten character input area in which handwritten characters can be input.
A navigation means having a search list for performing vehicle route guidance;
When the operation target screen is displayed on the display panel, when a handwritten character is handwritten in the handwritten character input area of the touch panel , the character recognition unit that recognizes the handwritten character and the character recognition unit The number of search targets narrowed down from the search list is displayed according to the predetermined character or character string, and whether the number of search targets is within the predetermined number is determined. Otherwise, a list display button is displayed in the operation button area, and when the number is within a predetermined number, or when the list display button is operated, the searched search target information is displayed as a list. And a control means for controlling the navigation means . The character recognition means completes character recognition when a new character is not handwritten by a predetermined time after a character is handwritten in the handwritten character input area of the touch panel, and the result is obtained as a result. The in-vehicle device according to claim 1, wherein the on-vehicle device outputs to the control means.

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