WO2005045369A1 - ナビゲーション装置 - Google Patents
ナビゲーション装置 Download PDFInfo
- Publication number
- WO2005045369A1 WO2005045369A1 PCT/JP2004/015829 JP2004015829W WO2005045369A1 WO 2005045369 A1 WO2005045369 A1 WO 2005045369A1 JP 2004015829 W JP2004015829 W JP 2004015829W WO 2005045369 A1 WO2005045369 A1 WO 2005045369A1
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- WO
- WIPO (PCT)
- Prior art keywords
- voice
- importance
- unit
- vehicle
- guidance
- Prior art date
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Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C21/00—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00
- G01C21/26—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00 specially adapted for navigation in a road network
- G01C21/34—Route searching; Route guidance
- G01C21/36—Input/output arrangements for on-board computers
- G01C21/3626—Details of the output of route guidance instructions
- G01C21/3629—Guidance using speech or audio output, e.g. text-to-speech
Definitions
- the present invention relates to a navigation device, and more particularly, to a navigation device that can guide a vehicle by voice.
- a general in-vehicle navigation device includes a display and a current position detecting unit (ie, a positioning unit).
- the current position detection unit detects the own vehicle position and the traveling direction, and the display draws a map around the detected own vehicle position and displays a symbol mark indicating the detected own vehicle position and the traveling direction.
- a GPS (Global Positioning System) receiver and Z or an autonomous navigation system are generally used as the current position detection unit.
- the above-described in-vehicle navigation device further includes a route search unit and a voice guidance unit.
- the route search section searches for a guide route from the departure place to the destination, and the display displays a map around the own vehicle position on which the searched guide route is superimposed, in addition to the above-mentioned symbol mark.
- the display may show an enlarged view of these important points or the traveling direction of vehicles at these important points in front of important points represented by an entrance to an expressway or an intersection turning right or left.
- some conventional in-vehicle navigation devices output a specific song before performing voice guidance at each point in the plan so as to draw the driver's attention.
- one aspect of the present invention is a navigation device, comprising: a current position detecting unit that detects a current position of a vehicle; A route search unit that searches for an internal route and, for each point where voice guidance is to be provided on the guide route searched by the route search unit, the importance is determined based on whether the driver needs to operate the vehicle. At least an importance assignment unit to be assigned.
- the navigation device further generates a voice message for each location where voice guidance is to be provided, and adds different warning sounds to the voice message generated this time according to the importance assigned by the importance assignment unit.
- a first combination including a first voice synthesis unit and a first voice output unit that outputs voice according to the warning sound and voice message added by the first voice synthesis unit, and a voice guide is provided.
- a second voice synthesizer for generating a voice message for each power point, a second voice output unit for outputting voice according to the voice message generated by the second voice synthesizer, a light emitting element, and an importance assigning unit
- a light emission control unit that controls light emission of the light emitting element according to the degree of importance assigned in (1).
- FIG. 1 is an external perspective view of a navigation device according to an embodiment of the present invention.
- FIG. 2 is a block diagram showing an internal configuration of the navigation device shown in FIG. 1.
- FIG. 3 is a flowchart showing a route guidance operation of the navigation device shown in FIG. 2.
- FIG. 4 shows an internal configuration of a modified example of the navigation device shown in FIG. 1.
- FIG. 1 is an external perspective view of a navigation device according to one embodiment of the present invention.
- the navigation device is typically mounted on a vehicle.
- a GPS antenna 11 for example, a slot 12 of a memory card such as an SD card (registered trademark) and a speaker 13 are arranged.
- FIG. 2 is a block diagram showing a configuration of the navigation device shown in FIG.
- the navigation device in addition to the configuration shown in FIG. 1, the navigation device includes an interface 14 for a memory card inserted into a slot 12, a GPS receiver 15, a direction sensor 16, a vehicle speed sensor 17, and the like.
- An operation unit 18 a system control unit 19, a storage unit 20, and an audio processing unit 21.
- the GPS antenna 11 receives a signal transmitted from an artificial satellite accommodated in a positioning system (for example, a GPS (Global Positioning System)) outside the vehicle.
- a positioning system for example, a GPS (Global Positioning System)
- Slot 12 is an insertion slot for a memory card (for example, an SD card (registered trademark)) in which map data necessary for guiding the vehicle is stored.
- a memory card for example, an SD card (registered trademark)
- map data necessary for guiding the vehicle is stored.
- map data may be general or well-known, detailed description thereof will be omitted.
- the speaker 13 outputs a warning sound and a guidance sound according to the warning sound data and the voice guidance data generated by the system control unit 19. As will be apparent from the power described later, the speed power 13 may not output a warning sound in some cases.
- GPS receiver 15 receives radio waves of a plurality of GPS satellite powers, performs calculations, and detects the current vehicle. It generates and outputs data indicating the latitude, longitude, altitude, and traveling azimuth of the current position.
- the direction sensor 16 typically includes a geomagnetic sensor and an angular velocity sensor, and the geomagnetic sensor outputs data indicating the direction of the vehicle based on the geomagnetism (earth magnetic field).
- the angular velocity sensor detects and outputs the angular velocity of the vehicle.
- Vehicle speed sensor 17 detects and outputs the traveling speed of the vehicle.
- the operation unit 18 typically includes a key or a remote control for inputting various instructions to the system control unit 19.
- the operation unit 18 is mainly used by the driver to input a destination required for the processing of the route search unit 23.
- the system control unit 19 performs calculations and controls necessary for the navigation operation.
- the system control unit 19 includes a current position detection unit 22, a route search unit 23, an importance assignment unit 24, and a speech synthesis unit 25.
- the processes of the current position detecting unit 22, the route searching unit 23, the importance assigning unit 24, and the speech synthesizing unit 25 will be described later in detail.
- the voice processing unit 21 converts the warning sound data and the synthesized voice data generated by the system control unit 19 into an analog format or amplifies the data, and outputs the result to the speaker 13.
- the system control unit 19 fetches and holds map data through the interface 14. Further, the direction sensor 16 detects the direction and angular velocity of the vehicle, and outputs data indicating the direction to the current position detection unit 22, and the vehicle speed sensor 17 calculates the traveling speed of the vehicle and outputs the current position detection unit 22. Output to Further, the GPS receiver 15 obtains the latitude, longitude, altitude, and heading direction of the current position of the vehicle based on radio waves from GPS satellites, and outputs data indicating the respective positions to the current position detection unit 22.
- the current position detection unit 22 performs a predetermined calculation on the input azimuth, angular velocity, and traveling speed of the vehicle to calculate the current position and the traveling azimuth of the vehicle.
- the direction sensor 16, the vehicle speed sensor 17, and the current position detection unit 22 constitute an autonomous navigation system. Also
- the current position detector 22 compares the autonomously calculated current position and heading with the data from the GPS receiver 15 and adjusts each other's error to obtain a more accurate current position and heading. To detect.
- the route search unit 23 uses the detected current position as the departure point, and provides a guide route from there to the destination using the map data currently held.
- Data for specifying the searched guidance route (hereinafter referred to as guidance route data) is stored in the storage unit 20.
- the current position detected by the current position detection unit 22 is used as the departure place, but the present invention is not limited to this, and the departure place is set by the driver operating the operation unit 18. It can be done.
- the importance assigning section 24 refers to the guide route data in the storage section 20 to create a point where voice guidance is to be provided (hereinafter, referred to as guide point data), and stores it in the storage section 20. .
- the importance allocating unit 24 further creates data indicating importance (hereinafter, referred to as importance data) for each of the stored guide point data, and stores the data in the storage unit 20.
- the importance of voice guidance is assigned based on whether or not the driver needs some driving operation.
- the driving operation is typically a steering operation or braking.
- the main guidance sound may be an intersection at which the vehicle should turn, or a notification that the vehicle has stopped at a transit point or destination.
- Voice guidance when a vehicle arrives immediately before a transit point or a destination or voice guidance immediately before approaching an intersection to be turned requires immediate operation of the vehicle.
- the guide point data is assigned a degree of importance “large”. Such a degree of importance is assigned, for example, at a point where voice guidance such as "You are going to the right at XX intersection" is to be given, or "Arrival at a stopover or destination will be made soon" It is a place where voice guidance should be given.
- an importance level of "medium” is assigned to a point where an advance announcement voice guidance for a right or left turn at an intersection should be given. For example, “medium” importance is assigned to “approximately 700 One Torr, turn right at XX intersection. "
- a navigation device having no display is taken as an example.
- the driver cannot see the map image, so that, for example, when the vehicle goes along the road or when the vehicle keeps going straight, there is no voice guidance. In such a situation, the driver becomes uneasy and insecure whether the navigation device is operating or the guide route is running correctly.
- the navigation device is preferably used at appropriate distances or at time intervals, following a road, passing an intersection without making a right or left turn, or crossing a river. Or when giving voice guidance. The point at which these voice guidances are given does not prompt the driver to perform any driving operation, that is, the driver listens and does not have any problems! / The importance “small” is assigned to the point data.
- the importance assigning unit 24 performs an operation of saving the guidance content data and the importance data in the storage unit 20 from the detected current position to each point on the guide route within a predetermined range from the detected current position. It is done for.
- the guidance content data and the importance data in the storage unit 20 are updated to those at each point on the guidance route within the above range from the current position when the vehicle has traveled a certain distance. If the destination is close, or if the storage capacity of the storage unit 20 is sufficiently large with respect to the amount of data to be stored, after the end of the route search, the guidance content data and important information The degree data is created and stored.
- the importance is described in three levels. However, the importance may be at least two levels.
- the driver may change the criteria for assigning the importance from the operation unit 18.
- the importance may be assigned according to different criteria depending on the place or time of travel. For example, relatively low importance is assigned to the guidance content data on a guidance route that passes many times on a road near the driver's home.
- the current position detection unit 22 detects the current position as described above, and passes the current position to the speech synthesis unit 25 (step ST1).
- the voice synthesizer 25 receives the current position. Then, by referring to the guidance content data in the storage unit 20, it is determined whether or not the vehicle has reached a point at which voice guidance is to be performed (hereinafter referred to as a proposed point) (step ST2).
- voice synthesis unit 25 passes the processing to current position detection unit 22, and current position detection unit 22 performs step ST1 again.
- the voice synthesizer 25 determines the importance of the current guide point (step ST3). This determination is made by reading the importance data stored in the storage unit 20 corresponding to the guide point.
- step ST3 if the importance is "small", the voice synthesizing unit 25 does not generate the warning sound data representing the warning sound. Further, the voice synthesizing unit 25 generates a voice message for the current guide point using the map data read from the memory card. Thereafter, the voice synthesizer 25 outputs only the generated voice message to the voice processor 21 (step ST4). As a result, from the speaker 13, for example, "Please cross the Takahashi bridge ahead” or "Go straight ahead! /,” T. Is output (step ST5).
- step ST3 If it is determined in step ST3 that the importance level is “large” or “medium”, the voice synthesizer 25 generates warning sound data representing a warning sound corresponding to the current importance level. Further, the voice synthesis unit 25 generates a voice message for the current guide point in the same manner as described above. Thereafter, the voice synthesizer 25 outputs the generated warning sound data and voice message to the voice processor 22 (step ST6). As a result, when the importance level is “medium”, the speaker 13 issues a warning sound such as “Bon's right about 700 meters to the right.” , A short sound, a low volume or low frequency sound, or a sound of a specific pattern), a voice message is output (step ST5).
- a warning sound (such as a long sound) that warns the driver strongly, such as “Pin Bone, please turn right at the next intersection.”
- a high-volume or high-frequency sound, or a sound having a pattern different from the specific pattern) is output (step ST5).
- the importance allocating unit 24 determines the importance of each guide point on the guide route based on whether or not the driver needs a certain driving operation. Is assigned.
- the voice synthesizer 25 determines whether or not it is capable of generating the alarm sound data according to the assigned importance. Further, even when generating the warning sound data, the voice synthesizing unit 25 creates different warning sound data according to the assigned importance. As a result, at a point where the driver needs some kind of driving operation, a warning sound according to the importance level is output from the speaker 13 in addition to the voice guidance.
- the importance read out in step ST3 described above may be changed according to the traveling speed and the like of the vehicle at that time.
- the vehicle in response to the announcement voice guidance of "approximately 700 meters, turn right at the XX intersection", in the above-described embodiment, the vehicle is repeatedly stopped and driven at low speed in a traffic jam in which the importance level "medium" is assigned. In such a case, the vehicle may take a long time to make a right turn at the target intersection, so the importance may be changed to “small”.
- step ST7 whether or not the vehicle has arrived at the destination is determined in step ST7.
- the present invention is not limited to this. May be determined by the system control unit 19.
- the system control unit 19 may judge both the force of the vehicle arriving at the destination and whether or not an instruction to interrupt the route guidance has been given.
- the navigation device has been described as not including a display. However, whether or not a display is provided is essential for this embodiment. Therefore, the navigation device may have a display.
- a conventional navigation device equipped with such a display when a driver misses the voice guidance, the driver often looks at a map displayed on the display and checks how the vehicle will proceed. . However, such a checking operation may cause the driver's gaze to deviate from the front of the vehicle and may neglected to pay attention to the driving operation.
- the present embodiment since the importance of voice guidance is output by a warning sound, the possibility that the driver misses a voice plan with high importance is reduced. As a result, it is possible to reduce the possibility that the driver's line of sight deviates from the front of the vehicle or the driver does not pay attention to the driving operation.
- the navigation device informs the driver of the importance of the guidance message based on the presence or absence of a warning sound and the difference between the warning sounds.
- the navigation device has a configuration as shown in FIG. 4, and the light emission control unit 26 controls the light emission of a light emitting element 27 represented by an LED in accordance with the degree of importance.
- the importance of the guidance message may be communicated to the driver.
- the light emission control unit 26 does not cause the light emitting element 27 to emit light when the importance is “small”, and causes the light emitting element 27 to emit light weakly when the importance is “medium”. In the case of “large”, the light emitting element 27 emits light intensely.
- the voice message itself is output from the speaker 13.
- the system control unit 19 performs the above-described processing according to a computer program stored in advance.
- the present invention is not limited to this, and the above-described processing may be realized by hardware.
- the computer program may be distributed in a state recorded on a storage medium such as a CD-ROM.
- the computer program may be stored in a server device connected to the network so that the terminal device can be downloaded.
- the navigation device according to the present invention can be applied to, for example, applications that require a technical effect of being able to provide voice guidance without constantly nervousness of the driver.
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- Engineering & Computer Science (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Automation & Control Theory (AREA)
- Health & Medical Sciences (AREA)
- Audiology, Speech & Language Pathology (AREA)
- General Health & Medical Sciences (AREA)
- Multimedia (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
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Abstract
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Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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JP2005515262A JPWO2005045369A1 (ja) | 2003-11-05 | 2004-10-26 | ナビゲーション装置 |
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JP2003-376123 | 2003-11-05 | ||
JP2003376123 | 2003-11-05 |
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WO2005045369A1 true WO2005045369A1 (ja) | 2005-05-19 |
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PCT/JP2004/015829 WO2005045369A1 (ja) | 2003-11-05 | 2004-10-26 | ナビゲーション装置 |
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2008185394A (ja) * | 2007-01-29 | 2008-08-14 | Denso Corp | 車両用ナビゲーション装置および情報センタ |
JP2012220450A (ja) * | 2011-04-13 | 2012-11-12 | Denso Corp | 車両用情報提供装置 |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH08273098A (ja) * | 1995-03-31 | 1996-10-18 | Toyota Motor Corp | 衝突防止装置 |
JPH11167698A (ja) * | 1997-12-02 | 1999-06-22 | Yazaki Corp | 車両の障害物警報装置 |
JP2002236029A (ja) * | 2001-02-09 | 2002-08-23 | Alpine Electronics Inc | 音声案内装置 |
-
2004
- 2004-10-26 WO PCT/JP2004/015829 patent/WO2005045369A1/ja active Application Filing
- 2004-10-26 JP JP2005515262A patent/JPWO2005045369A1/ja active Pending
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH08273098A (ja) * | 1995-03-31 | 1996-10-18 | Toyota Motor Corp | 衝突防止装置 |
JPH11167698A (ja) * | 1997-12-02 | 1999-06-22 | Yazaki Corp | 車両の障害物警報装置 |
JP2002236029A (ja) * | 2001-02-09 | 2002-08-23 | Alpine Electronics Inc | 音声案内装置 |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2008185394A (ja) * | 2007-01-29 | 2008-08-14 | Denso Corp | 車両用ナビゲーション装置および情報センタ |
JP2012220450A (ja) * | 2011-04-13 | 2012-11-12 | Denso Corp | 車両用情報提供装置 |
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JPWO2005045369A1 (ja) | 2007-05-17 |
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