JP2007263751A - Navigation apparatus and method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a navigation apparatus capable of performing guidance with voice at timing suitable to a user. <P>SOLUTION: The navigation apparatus is suitably applied to a navigation apparatus, or the like of the mobile unit of a vehicle, or the like, and comprises a route search means, a voice guidance output means, an input means, and a control means. The route search means searches a route to the destination. The voice guidance output means guides a guidance point where one should turn right or left on a road with voice at prescribed timing. The input means inputs timing setting information for setting prescribed timing. The control means controls prescribed timing based on the timing setting information, thus enabling the navigation apparatus to perform guidance with voice at timing suitable to the user. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a navigation device that indicates a route to a destination for a user.

  In general, a navigation device displays a predetermined range of map information on a display device around the current position of a moving body such as a vehicle. The user can know the current position of the host vehicle by looking at the displayed map information. The navigation device searches for a route to the destination and displays the route on the display device. The user can know the route to the destination by looking at the route displayed on the display device.

  Such a navigation apparatus is equipped with a voice guidance function in order to guide the user more accurately to the destination. The voice guidance function outputs a voice such as “Turn the next intersection to the right (left)” when the vehicle approaches the intersection where it should make a right or left turn on the route. It encourages you to make a right or left turn at the intersection.

  The following Patent Document 1 describes a navigation device that changes and sets the frequency of voice guidance at an intersection according to the user's will or according to the user's driving environment.

JP 2001-280990 A

  However, in the navigation device described in Patent Document 1, although the frequency of voice guidance at an intersection can be changed, the timing cannot be changed, and voice guidance can be provided at a timing suitable for each user. could not.

  Examples of problems to be solved by the present invention include the above. An object of the present invention is to provide a navigation device capable of providing voice guidance at a timing suitable for a user.

  The invention according to claim 1 is a navigation device for a mobile object, and provides voice guidance at a predetermined timing for route search means for searching for a route to a destination and a guide point on the route where a right or left turn should be made. Voice guidance output means; input means for inputting timing setting information for setting the predetermined timing; and control means for controlling the predetermined timing based on the timing setting information.

  The invention according to claim 4 is a navigation method for a moving body, and provides a route search step for searching for a route to a destination, and provides voice guidance to a guidance point on the route where a right or left turn should be made at a predetermined timing. A voice guidance output step; an input step for inputting timing setting information for setting the predetermined timing; and a control step for controlling the predetermined timing based on the timing setting information.

  The invention according to claim 5 is a navigation program executed by a mobile navigation device including a computer, and includes route search means for searching for a route to the destination, and a guide point on the route where a right or left turn should be made. Voice guidance output means for voice guidance at a predetermined timing, input means for inputting timing setting information for setting the predetermined timing, control means for controlling the predetermined timing based on the timing setting information, Make the computer work.

  In one aspect of the present invention, a mobile navigation device includes a route search unit that searches for a route to a destination, and a voice guidance output that provides voice guidance to a guidance point on the route where a right or left turn should be made at a predetermined timing. Means, input means for inputting timing setting information for setting the predetermined timing, and control means for controlling the predetermined timing based on the timing setting information.

  The above navigation device is preferably applied to a navigation device for a moving body such as a vehicle, and includes a route search means, a voice guidance output means, an input means, and a control means. The route search means searches for a route to the destination. The voice guidance output means voice guides a guidance point on the route where a right turn or a left turn should be made at a predetermined timing. A typical example of a guide point here is an intersection that should make a right or left turn on a route (hereinafter simply referred to as a “guide intersection”), and also an expressway or toll road entrance or interchange. In addition, the point which needs to change the advancing direction of a vehicle is also included. The input means is for inputting timing setting information for setting the predetermined timing. The control means controls the predetermined timing based on the timing setting information. As a result, the navigation apparatus can provide voice guidance at a timing suitable for the user.

  In one aspect of the navigation device, the input means is for inputting the timing setting information for each of a plurality of driving states, and the control means is for each of the plurality of driving states. In some cases, the predetermined timing is controlled based on the timing setting information. Thereby, the navigation apparatus can perform voice guidance at a timing suitable for the user in each of a plurality of driving states.

  In another aspect of the above navigation device, the input means further sets frequency setting means for setting a frequency for voice guidance, volume setting information for setting a volume for voice guidance, and voice for voice guidance. For inputting at least one setting information among the voice setting information to be set and the chime setting information for setting the sound of a chime for notifying voice guidance, and the control means is further configured to input the voice based on the setting information. Control the guiding means. Thereby, the navigation apparatus can perform voice guidance more suitable for the user.

  In another aspect of the present invention, a mobile body navigation method includes a route search step for searching for a route to a destination, and a voice guidance output for performing voice guidance at a predetermined timing on a guidance point on the route where a right or left turn is to be made. A step, an input step for inputting timing setting information for setting the predetermined timing, and a control step for controlling the predetermined timing based on the timing setting information. This method can also provide voice guidance at a timing suitable for the user.

  In still another aspect of the present invention, a navigation program executed by a mobile navigation device including a computer includes route search means for searching for a route to a destination, and a guide point for making a right or left turn on the route. The computer as voice guidance output means for voice guidance at a predetermined timing, input means for inputting timing setting information for setting the predetermined timing, and control means for controlling the predetermined timing based on the timing setting information To work. The above navigation device can be realized by causing the computer in the navigation device to execute the navigation program. The navigation program can be handled in a state stored in a storage medium.

  Hereinafter, preferred embodiments of the present invention will be described with reference to the drawings. The following description shows an example in which the present invention is applied to a vehicle navigation apparatus.

(Navigation device)
FIG. 1 shows the configuration of the navigation device 1. As shown in FIG. 1, the navigation device 1 includes a self-supporting positioning device 10, a GPS receiver 18, a system controller 20, a disk drive 31, a data storage unit 36, a communication interface 37, a communication device 38, a display unit 40, a voice output. A unit 50 and an input device 60 are provided.

  The autonomous positioning device 10 includes an acceleration sensor 11, an angular velocity sensor 12, and a distance sensor 13. The acceleration sensor 11 is made of, for example, a piezoelectric element, detects vehicle acceleration, and outputs acceleration data. The angular velocity sensor 12 is composed of, for example, a vibrating gyroscope, detects the angular velocity of the vehicle when the direction of the vehicle is changed, and outputs angular velocity data and relative azimuth data. The distance sensor 13 measures a vehicle speed pulse composed of a pulse signal generated with the rotation of the vehicle wheel.

  The GPS receiver 18 receives radio waves 19 carrying downlink data including positioning data from a plurality of GPS satellites. The positioning data is used to detect the absolute position of the vehicle from latitude and longitude information.

  The system controller 20 includes an interface 21, a CPU (Central Processing Unit) 22, a ROM (Read Only Memory) 23, and a RAM (Random Access Memory) 24, and controls the entire navigation device 1.

  The interface 21 performs an interface operation with the acceleration sensor 11, the angular velocity sensor 12, the distance sensor 13, and the GPS receiver 18. From these, vehicle speed pulses, acceleration data, relative azimuth data, angular velocity data, GPS positioning data, absolute azimuth data, and the like are input to the system controller 20. The CPU 22 controls the entire system controller 20. The ROM 23 includes a nonvolatile memory (not shown) in which a control program for controlling the system controller 20 is stored. The RAM 24 stores various data such as route data preset by the user via the input device 60 so as to be readable, and provides a working area to the CPU 22.

  A system controller 20, a disk drive 31 such as a CD-ROM drive or a DVD-ROM drive, a data storage unit 36, a communication interface 37, a display unit 40, an audio output unit 50, and an input device 60 are mutually connected via a bus line 30. It is connected to the.

  The disk drive 31 reads and outputs content data such as music data and video data from a disk 33 such as a CD or DVD under the control of the system controller 20. The disk drive 31 may be either a CD-ROM drive or a DVD-ROM drive, or may be a CD and DVD compatible drive.

  The data storage unit 36 is configured by, for example, an HDD and stores various data used for navigation processing such as map data and facility data. Details of the map data will be described later.

  The communication device 38 includes, for example, an FM tuner, a beacon receiver, a mobile phone, a dedicated communication card, and the like, and traffic congestion and traffic information distributed from a VICS (Vehicle Information Communication System) center via the communication interface 37. Receive road traffic information and other information.

  The display unit 40 displays various display data on a display device such as a display under the control of the system controller 20. Specifically, the system controller 20 reads map data from the data storage unit 36. The display unit 40 displays the map data read from the data storage unit 36 by the system controller 20 on a display screen such as a display. The display unit 40 includes a graphic controller 41 that controls the entire display unit 40 based on control data sent from the CPU 22 via the bus line 30 and image information that can be displayed immediately, such as a VRAM (Video RAM). A buffer memory 42 that temporarily stores, a display control unit 43 that controls display of a display 44 such as a liquid crystal display or a CRT (Cathode Ray Tube) based on image data output from the graphic controller 41, and a display 44 are provided. . The display 44 is composed of, for example, a liquid crystal display device having a diagonal of about 5 to 10 inches, and is mounted near the front panel in the vehicle.

  The audio output unit 50 performs D / A (Digital to Analog) conversion of audio digital data sent from the CD-ROM drive 31, DVD-ROM 32, RAM 24, or the like via the bus line 30 under the control of the system controller 20. A D / A converter 51 to perform, an amplifier (AMP) 52 that amplifies the audio analog signal output from the D / A converter 51, and a speaker 53 that converts the amplified audio analog signal into sound and outputs the sound into the vehicle. It is prepared for.

  The input device 60 includes keys, switches, buttons, a remote controller, a voice input device, and the like for inputting various commands and data. The input device 60 is disposed around the front panel and the display 44 of the main body of the in-vehicle electronic system mounted in the vehicle. When the display 44 is a touch panel system, the touch panel provided on the display screen of the display 44 also functions as the input device 60. This touch panel functions as input means in the present invention.

  The navigation device of the present invention is realized by the CPU 22 of the navigation device 1 executing a program stored in advance in the ROM 23 or the like. Therefore, the CPU 22 functions as control means in the present invention.

  The CPU 22 performs route setting when the destination is set by the user. A specific method for route setting will be briefly described. When performing the route setting, the user sets the destination by operating the input device 60 and issues a route search instruction to the navigation device 1. The CPU 22 fetches necessary link and node information from the data storage unit 36 and performs route calculation. The CPU 22 stores route information together with necessary map information in the buffer memory 42, and displays a map and a route to the destination on the display screen of the display 44. Therefore, the CPU 22 also functions as route search means in the present invention.

  The audio output unit 50 gives the user a voice such as “Please turn right 300m ahead” or “Please turn right at a convenience store 100m ahead” at a predetermined intersection on the route where a right turn or left turn should be made. Give guidance. Therefore, the voice output unit 50 functions as voice guidance output means.

  In this embodiment and the modified example, the guidance intersection is merely an example of the guidance point, and instead of the guidance intersection, other guidance points such as entrances and exits of expressways and toll roads, interchanges, etc. The present invention can be similarly applied to a point where the traveling direction of the vehicle needs to be changed.

(Voice guidance function)
Next, the voice guidance function in the navigation device of the present invention will be described.

  In the navigation device 1, the user can set the voice guidance function for each of several assumed driving states from the touch panel provided on the display screen of the display 44.

  FIG. 2 is a chart showing an assumed driving state and a voice guidance function that can be set.

  The chart shown in FIG. 2A shows the types of assumed operating states. In the navigation device 1 of the present embodiment, “music playback”, “highway driving”, “general road driving”, “narrow street driving”, “running on roads with continuous intersections”, “congestion” Six driving states of “running on the middle road” are assumed.

  “Playing music” indicates a state in which the user is playing music or radio in the car. “Driving on a highway” indicates a state in which the vehicle is traveling on a highway. “Driving on a general road” indicates a state where the vehicle is traveling on a general road that is not a highway. “Driving on a narrow street” indicates a state where the vehicle is traveling on a narrow road such as a back road. “Driving on a road with continuous intersections” indicates a state in which the host vehicle is driving on a road followed by an intersection. “Running on a congested road” indicates a state where the vehicle is traveling on a congested road.

  The chart shown in FIG. 2B shows items of voice guidance functions that can be set. In FIG. 2B, as an example, the items of the voice guidance function that can be set when the driving state is during music playback are shown, but these items are not limited to when the driving state is during music playback. These are items of the voice guidance function that can be set for each of all the driving states shown in FIG. In the navigation apparatus 1, five items of “frequency”, “timing”, “volume”, “voice”, and “chime” are set as items of the voice guidance function that can be set by the user.

  “Frequency” indicates the number of times voice guidance is performed. In the chart shown in FIG. 2B, three values “1”, “2”, and “3” are prepared as “frequency”. ing. “Timing” indicates a distance for voice guidance from the guidance intersection, and three values “100 m before”, “200 m before”, and “300 m before” are prepared. For example, when “300m before” is set, when the vehicle reaches 300m before the guidance intersection, a voice guidance such as “turn right 300m ahead” is given. The “timing” value can be selected by the number of “frequency” values among the three values. “Volume” indicates the volume at the time of voice guidance, and five values from “Level 1” to “Level 5” are prepared. For example, the closer to “Level 1”, the smaller the volume, and the closer to “Level 5”, the greater the volume. “Voice” indicates the type of voice for voice guidance, and three values “Voice1”, “Voice2”, and “Voice3” are prepared. “Chime” indicates the type of chime sound used when notifying voice guidance, and three values of “Sound1,” “Sound2,” and “Sound3” are prepared. In this way, the user can select a desired value from several prepared values for each item.

  In other words, in the navigation device 1, as the driving states in which the voice guidance function can be set, “music playback”, “highway driving”, “general road driving”, “narrow street driving”, “continuous driving” Six driving states are assumed, i.e., driving on a road with an intersection, and driving on a road in a traffic jam. For each of these six driving states, the user performs "frequency", "timing", " The values of voice guidance function items such as “volume”, “voice”, and “chime” can be set.

  3 and 4 show examples of menu screen display for setting the voice guidance function. 3 and 4 show an example in which the user sets the item “timing” in the driving state “traveling on a highway”. When traveling on an expressway, the user may want to accurately grasp the timing of making a right or left turn at a place such as an interchange that needs to make a right or left turn because the vehicle is traveling at a high speed. In such a case, the user needs to shorten the voice guidance timing interval.

  As shown in FIG. 3A, first, the main screen 70 in which the operation state (situation) is listed on the display screen is displayed as the menu screen. The user selects “Driving on Expressway” on the main screen 70 from the touch panel. Similarly, the user can select a desired operation state from the operation states displayed on the main screen 70.

  As shown in FIG. 3A, on the main screen 70, “ON” and “OFF” are set for each operation state. In a predetermined driving state in which “ON” is set, voice guidance is performed with the value of each item of the voice guidance function set by the user. On the other hand, in a predetermined driving state in which “OFF” is set, voice guidance is not performed with the value of each item of the voice guidance function set by the user. The user can select and set “ON” and “OFF” for each operation state. That is, it can be said that the setting of “ON” and “OFF” in each driving state is a setting for validating or invalidating the value of each item of the voice guidance function set by the user. The operation state “normal” displayed on the main screen 70 is, for example, an operation state that does not correspond to any of the above six operation states, and is set to “OFF” among the above six operation states. Indicates the operating state. That is, the voice guidance in a predetermined driving state in which the user does not set the voice guidance function is performed with the value of each item of the voice guidance function in the driving state “normal”. Further, all of the above six operating states are “OFF” in the initial state. That is, in the initial state, the voice guidance in all driving states is performed with the values of the items of the voice guidance function in the driving state “normal”.

  In addition, when the user wants to select another operating state and wants to select an operating state that is not currently displayed on the display screen, the operating state that is not currently displayed on the display screen by operating the arrow 71 from the touch panel. Can be displayed, and the user can select an operation state that is not currently displayed on the display screen. Further, the navigation device 1 can also be configured so that the user can set the items of the voice guidance function shown in FIG. 2B even in the driving state “normal”.

  When the user selects “on highway” on the main screen 70, a selection screen for selecting “ON” or “OFF” is displayed as shown in FIG. Here, when the user selects “ON”, “ON” is set for the driving state “running on the highway”, and the user can set the value of each item of the voice guidance function.

  In FIG. 3B, when the user selects “ON”, an item screen 80 is displayed on the display screen as shown in FIG. This item screen 80 shows the value of the currently set item of the voice guidance function in the driving state “on highway”. That is, as the value of the currently set item in the driving state “running on the highway”, the value of “frequency” is set to “twice”, and the value of “timing” is set to “300 m before, 100 m before” Then, the value of “volume” is set to “Level3”, the value of “voice” is set to “Voice1”, and the value of “chime” is set to “Sound1”.

  Here, when the user selects the item “timing” from the touch panel, a timing setting screen 90 is displayed on the display screen as shown in FIG. On the timing setting screen 90, a list of selectable values for “timing” is displayed as a check box. The user can select “timing” values by the number of “frequency” values. Since “frequency” is currently set to “twice”, the user can select two values from the list. Here, when the user unchecks the value “300 m before” from the touch panel and then checks the value “200 m before” again and presses the “OK” button, the screen returns to the item screen 80. At this time, as shown in FIG. 4B, the value of “timing” is changed from “300 m before, 100 m before” to “200 m before, 100 m before”. By doing in this way, the user can shorten the timing of voice guidance in the driving state during traveling on the highway.

  As another example, for example, when music is being played back, the user may be absorbed in listening to music and fail to make a right or left turn at a guidance intersection. Therefore, for example, the user selects “playing music” on the main screen 70 and checks all values of “frequency” “3 times” and “timing” “300 m before, 200 m before, 100 m before”. Keep it. Thereby, since voice guidance is frequently performed, it is possible to prevent the user from failing to turn right or left at the guidance intersection.

  Even when traveling on a general road, the user may want voice guidance at a timing that suits him / herself, for example. At this time, the user selects “traveling on a general road” on the main screen 70 and checks the value of “timing” that suits him / her. Thereby, the user can receive voice guidance at a timing that suits him / herself.

  When driving on a road with continuous intersections, the distance between the intersections is short, so the user should only make a right or left turn just before an intersection that makes a right or left turn. You may want voice guidance. In this case, the user needs to shorten the voice guidance timing. In this case, the user selects “running on a road with continuous intersections” on the main screen 70, and checks the value of “frequency” as “once” and “timing” as “100 m before”. Thus, the user can receive voice guidance only 100 meters before the guidance intersection to make a right turn or a left turn, and it is not necessary to mistake the intersection to make a right turn or a left turn.

  When traveling on a congested road, the user's vehicle is traveling at a low speed, so the user may want to reduce the frequency of voice guidance and shorten the timing of voice guidance. In this case, the user selects “running on a congested road” on the main screen 70, and checks “frequency” as “once” and “timing” as “100 m before”. As a result, the user can receive voice guidance only 100 m before the guidance intersection to make a right or left turn.

  As described above, the navigation device 1 can provide voice guidance for each of the assumed driving states at a timing suitable for the user.

  Needless to say, the user can select an item other than “timing” on the item screen 80 from the touch panel. For example, when music is being played, the user may want to reduce the sound of voice guidance, for example. In this case, the user selects “playing music” from the touch panel on the main screen 70, and selects “volume” from the touch panel on the item screen “playing music”. At this time, a setting screen for “volume” is displayed on the display screen, and check boxes from “Level 1” to “Level 5” are displayed on the setting screen. The user can change the value of “volume” by checking any one value from the touch panel. For example, if the user is currently set to “Level 3”, the user can reduce the volume of the voice guidance in the driving state “playing music” by checking and setting “Level 1” again. it can.

(Voice guidance setting process)
Next, a method of voice guidance setting processing performed by the navigation device of the present invention will be specifically described with reference to a flowchart. FIG. 5 is a flowchart showing voice guidance setting processing.

  The CPU 22 determines whether any operating state (situation) has been selected on the menu screen 70 shown in FIG. 3A (step S11). The CPU 22 determines that any operating state has been selected. This operation is continued until the determination is made (step S11: No).

  If the CPU 22 determines that one of the operating states has been selected (step S11: Yes), that is, if it determines that one of the operating states has been set to “ON”, FIG. It is determined whether any item has been selected on the item screen 80 shown in (Step S12). The CPU 22 continues this operation until it determines that any item has been selected (step S12: No).

  When it is determined that any item has been selected (step S12: Yes), the CPU 22 determines whether the selected item is “timing” (step S13). When the CPU 22 determines that the selected item is not “timing” (step S13: No), that is, the selected item is “frequency”, “volume”, “voice”, or “chime”. If it is determined that the value of the item is selected, the value of the item selected by the user is registered as setting information (step S14). For example, when the item selected by the user is “frequency”, the CPU 22 uses the value of “frequency” selected by the user as frequency setting information, and when the selected item is “volume”, When the value of “volume” selected by the user is set as volume setting information and the selected item is “voice”, the selected item is set with the value of “voice” selected by the user as voice setting information. In the case of “chimes”, the value of “chimes” selected by the user is registered in a memory such as the RAM 24 as chime setting information. Thereafter, the CPU 22 ends the process.

  On the other hand, if the CPU 22 determines that the selected item is “timing” (step S13: Yes), the CPU 22 obtains the value of “frequency” from a memory such as the RAM 24, and then the value of the “frequency”. Thus, it is determined whether or not the value of “timing” is selected by the user (step S15). The CPU 22 continues this operation until it is determined that the “timing” value is selected by the user by the “frequency” value (step S15: No).

  When the CPU 22 determines that the “timing” value has been selected by the user by the “frequency” value (step S15: Yes), the CPU 24 stores the selected “timing” value as timing setting information in the RAM 24 or the like. Register in the memory (step S16). Thereafter, the CPU 22 ends the process. By doing so, it is possible to set a voice guidance function suitable for the user.

(Navigation process)
Next, a navigation processing method performed by the navigation device of the present invention will be described. FIG. 6 is a flowchart showing the navigation process. In the following navigation processing, it is assumed that the operation states described in FIG. 3A are all set to “ON”.

  First, the CPU 22 determines whether or not a route is set, that is, a destination is set by the user and a route to the destination is set (step S21). The CPU 22 continues this operation until it is determined that the route is set (step S21: No).

  If the CPU 22 determines that the route has been set (step S21: Yes), the driving state in which the vehicle is currently traveling is the above-described “music playback”, “highway driving”, “ It is detected whether the vehicle is traveling on a general road, traveling on a narrow street, traveling on a road with continuous intersections, or traveling on a road in a traffic jam (step S22). For example, the CPU 22 can detect the state of “music playback” based on a signal from the disk drive 31, and calculate the current position on the map information of the own vehicle, It is possible to detect whether the vehicle is in the middle, driving on general roads, driving on narrow streets, driving on roads with continuous intersections, or driving on roads with heavy traffic. . When the CPU 22 detects that the current driving state of the vehicle is neither of these states, it is assumed that the CPU 22 is in the “normal” state. When the CPU 22 detects the driving state in which the host vehicle is currently traveling, the CPU 22 sets setting information for each item such as frequency setting information, volume setting information, voice setting information, chime setting information, and timing setting information in the driving state. Obtained from a memory such as the RAM 24 (step S23).

  Next, based on the timing setting information, the CPU 22 determines whether or not the distance from the guidance intersection is the “timing” distance value in the driving state detected in step S22 (step S24). . The CPU 22 continues this operation until it determines that the distance from the guidance intersection is the value of the “timing” distance (step S24: No).

  When the CPU 22 determines that the distance from the guidance intersection is the value of the “timing” distance (step S24: Yes), the CPU 22 uses the setting information of each item in the driving state detected in step S22. Then, the voice output unit 50 is controlled to execute voice guidance suitable for the driving state (step S25), and then the process ends.

  As described above, the navigation device according to the present invention is a mobile navigation device, in which a route search means for searching for a route to a destination and a guide point on the route where a right turn or a left turn should be made have a predetermined timing. Voice guidance output means for voice guidance, input means for inputting timing setting information for setting the predetermined timing, and control means for controlling the predetermined timing based on the timing setting information. Thereby, it is possible to provide a navigation device capable of providing voice guidance at a timing suitable for the user.

[Modification]
Next, a modified example of the navigation device of the present invention will be described. In the above-described embodiment, the voice guidance timing in each driving state is set by the user. However, the present invention is not limited to this. Furthermore, the navigation apparatus 1 may learn a guidance intersection where the user makes a right or left turn mistakenly, and may perform voice guidance at a timing in consideration of the next intersection.

  Specifically, for example, when the user makes a right turn or a left turn at an intersection before the guidance intersection, or when the user has passed the guidance intersection, the CPU 22 determines the current position of the vehicle and the position of the guidance intersection. It is possible to detect that the user has made a mistake in turning right or left. At this time, the CPU 22 registers the position of the guidance intersection where the user makes a right or left turn in a memory such as the RAM 24, and when the user turns right or left at the guidance intersection, for example, Regardless of the set value of “timing”, voice guidance is always provided 100 m in front, and the user is warned. By doing in this way, the user does not have to make the same mistake when it is necessary to make a right turn or a left turn again at a guidance intersection where a right turn or a left turn has been made before.

  Various modifications can be made without departing from the scope of the present invention. For example, it goes without saying that the number of items in each operating state and the number of values of each item are not limited to those described above.

It is a block diagram which shows schematic structure of a navigation apparatus. It is a chart showing a driving state and a voice guidance function that can be set. It is a display example of a menu screen for setting a voice guidance function. It is a display example of a menu screen for setting a voice guidance function. It is a flowchart of the voice guidance setting process which concerns on a present Example. It is a flowchart of the navigation process which concerns on a present Example.

Explanation of symbols

1 ... Navigation device 22 ... CPU
23 ... ROM
24 ... RAM
36: Data storage unit 44: Display

Claims (6)

A mobile navigation device,
A route search means for searching for a route to the destination;
Voice guidance output means for voice guidance at a predetermined timing on a guidance point on the route to make a right turn or a left turn;
Input means for inputting timing setting information for setting the predetermined timing;
And a control means for controlling the predetermined timing based on the timing setting information. The input means is for inputting the timing setting information for each of a plurality of operating states,
The navigation device according to claim 1, wherein the control unit controls the predetermined timing based on the timing setting information for each of the plurality of driving states. The input means further includes frequency setting means for setting a frequency for voice guidance, volume setting information for setting a volume for voice guidance, voice setting information for setting voice for voice guidance, and a chime for notifying voice guidance. Among the chime setting information for setting the sound, it is for inputting at least one setting information,
The navigation device according to claim 1, wherein the control unit further controls the voice guidance unit based on the setting information. A mobile navigation method,
A route search process for searching for a route to the destination;
A voice guidance output step for voice guidance on a route at a predetermined timing to make a right turn or a left turn;
An input step for inputting timing setting information for setting the predetermined timing;
And a control step of controlling the predetermined timing based on the timing setting information. A navigation program executed by a mobile navigation device comprising a computer,
In order to input route search means for searching for a route to the destination, voice guidance output means for voice guidance at a predetermined timing on a guidance point where a right or left turn should be made on the route, and timing setting information for setting the predetermined timing A navigation program for causing the computer to function as input means and control means for controlling the predetermined timing based on the timing setting information.   6. A recording medium on which the navigation program according to claim 5 is recorded.

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