JP2010160066A - Navigation apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a navigation apparatus that can perform an adequate audio guidance depending presence or absence of a fellow passenger on a predetermined guidance timing. <P>SOLUTION: When a guidance timing for performing an audio guidance has come, a CPU 41 stores a guidance content corresponding to the guidance timing into a RAM 42. The CPU 41 determines presence or absence of a fellow passenger on the basis of detection signals output from a front passenger seat weight sensor 61 and a rear passenger seat weight sensor 62. After that, the CPU 41 reads audio guidance information corresponding to the guidance content on the guidance timing from an audio guidance table 71 on the basis of the presence or absence of the fellow passenger so as to perform an audio guidance of the audio guidance information via a speaker 16. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a navigation device that provides voice guidance at a predetermined guidance timing.

Conventionally, various navigation devices that provide voice guidance at a predetermined guidance timing have been proposed.
For example, immediately after the driving of the vehicle is started, the ECU 9 predicts a travel point on the travel route or the travel route of the vehicle after the first set time has elapsed. And when the rest area is not provided within the predetermined range from the predicted travel point, every time when the vehicle approaches each rest area where the first set time elapses after the start of travel There is a vehicle guidance device configured to provide break guidance (see, for example, Patent Document 1).

JP 2008-32558 A (paragraphs (0022) to (0054), FIGS. 1 to 3)

  However, in the vehicle guidance apparatus described in Patent Document 1 described above, since the break guidance is performed with the same voice guidance regardless of the presence or absence of a passenger, If you give voice guidance such as “I am tired. Please take a break at ○○○.”, There is a risk that passengers may feel uneasy.

  Accordingly, the present invention has been made to solve the above-described problems, and provides a navigation device capable of performing appropriate voice guidance according to the presence or absence of a passenger at a predetermined guidance timing. For the purpose.

  In order to achieve the above object, a navigation device according to claim 1 includes passenger detection means for detecting a passenger, and voice information for storing a plurality of types of voice guidance information for guiding the user according to the presence or absence of the passenger for each guidance content. Guidance information storage means, selection means for selecting the voice guidance information based on the presence or absence of a passenger detected via the passenger detection means at a predetermined guidance timing, and voice guidance information selected via the selection means Guidance means for guiding the user to the user.

  Further, the navigation device according to claim 2 is the navigation device according to claim 1, wherein the voice guidance information storage means guides a plurality of types of voice guidance information for specific passengers when a specific passenger rides. Is stored for each guidance content, and when the specific passenger is detected via the passenger detection means, the selection means selects the voice guidance information for the specific passenger.

  Further, in the navigation device according to claim 3, in the navigation device according to claim 2, the passenger detection means determines whether the specific passenger is intimate with the user based on a departure place or a destination. The plurality of types of specific fellow passenger voice guidance information includes intimate fellow passenger guidance information for guidance when a specific fellow passenger who is intimate with the user is on board. When the specific fellow passenger is determined to be intimate with the user via the intimacy determination means, the intimate passenger information is selected.

  Furthermore, the navigation device according to claim 4 is the navigation device according to any one of claims 1 to 3, wherein a conversation detection means for detecting a conversation state between the user and the passenger, and the conversation detection means. Determination means for determining whether or not the conversation state continues based on the detection result of the above, and when the guidance means determines that the conversation state continues at the predetermined guidance timing, When the conversation is interrupted, the voice guidance information selected through the selection means is guided to the user.

  In the navigation device according to claim 1 having the above-described configuration, since voice guidance information is selected and guided to the user based on the presence or absence of a passenger at a predetermined guidance timing, an appropriate voice guidance is provided depending on the presence or absence of the passenger. Can be performed. For example, when there are no passengers, the voice guidance is given to the driver so that the driver can easily understand, “I am tired from driving for a long time. Please take a break.” On the other hand, Will be able to provide voice guidance saying “You can take a break at XX km ahead”, and it will be possible to provide appropriate voice guidance that does not give passengers anxiety.

  Further, in the navigation device according to claim 2, when a specific passenger is on board, it is possible to perform voice guidance by selecting the specific passenger voice guidance information at a predetermined guidance timing. It is possible to perform appropriate voice guidance according to the passenger.

  In the navigation device according to claim 3, when it is determined that a specific fellow passenger (for example, the user's family) who is intimate with the user is on the basis of at least one of the departure point and the destination. The voice guidance can be performed by selecting the intimate passenger guidance information at a predetermined guidance timing, and appropriate voice guidance according to a specific fellow passenger who is intimate with the user can be performed.

  Further, in the navigation device according to claim 4, when the conversation state between the user and the passenger continues at a predetermined guidance timing, it is possible to perform voice guidance when the conversation is interrupted. It is possible to perform voice guidance at an appropriate timing without destroying the atmosphere.

It is the block diagram which showed the navigation apparatus which concerns on a present Example. It is a figure which shows an example of the voice guidance table memorize | stored in voice guidance DB. It is a flowchart which shows the voice guidance process which performs voice guidance based on the presence or absence of a passenger and the relationship between a driver and a passenger.

  Hereinafter, a navigation device according to an embodiment of the present invention will be described in detail with reference to the drawings.

[Schematic configuration of navigation device]
First, a schematic configuration of the navigation device 1 according to the present embodiment will be described with reference to FIG. FIG. 1 is a block diagram showing a navigation device 1 according to the present embodiment.
As shown in FIG. 1, the navigation apparatus 1 according to the present embodiment includes a current position detection unit 11 that detects a current position of the own vehicle (hereinafter referred to as “own vehicle position”), and data in which various data are recorded. A recording unit 12, a navigation control unit 13 that performs various arithmetic processes based on the input information, an operation unit 14 that receives operations from an operator, and a liquid crystal that displays information such as a map to the operator A display (LCD) 15, a speaker 16 for outputting voice guidance related to route guidance and the like, and a communication device 17 for communicating with a road traffic information center, an information distribution center, etc. (not shown) via a mobile phone network, etc. The microphone 18 detects the voices of the driver and passengers.

  The navigation control unit 13 includes a vehicle speed sensor 21 that detects the traveling speed of the vehicle, a passenger seat weight sensor 61 that detects the presence or absence of a passenger in the passenger seat, and a rear portion that detects the presence or absence of a passenger in the rear seat. A seat weight sensor 62 and a remaining fuel detection sensor 63 for detecting the remaining fuel amount of the host vehicle are connected. The navigation control unit 13 is connected to a camera ECU (Electronic Control Unit) 51 for driving and controlling a CCD camera or the like. The camera ECU 51 is connected to an in-vehicle imaging camera 53 that is configured by a CCD camera or the like fixed in the vicinity of the rearview mirror and captures passengers in the vehicle.

  Hereinafter, each component constituting the navigation device 1 will be described. The current location detection unit 11 includes a GPS 31, a direction sensor 32, a distance sensor 33, and the like, and includes a vehicle position, a vehicle direction indicating the direction of the vehicle, and travel. It is possible to detect distances and the like.

  The data recording unit 12 includes an external storage device and a hard disk (not shown) as a recording medium, a map information database (map information DB) 25, a voice guidance database (voice guidance DB) 26 stored in the hard disk, and a predetermined number. And a recording head (not shown) which is a driver for reading predetermined programs and writing predetermined data to the hard disk.

  The map information DB 25 is composed of various information necessary for route guidance and map display. For example, new road information for specifying each new road, map display data for displaying a map, each intersection To search for intersection data, node data related to node points, link data related to roads (links), search data for searching for routes, store data related to POI (Point of Interest) such as stores that are a type of facility, and points Search data and the like. Further, the contents of the map information DB 25 are updated by downloading update information distributed from an information distribution center (not shown) via the communication device 17.

  In the voice guidance DB 26, voice guidance information for guidance at predetermined guidance timings such as intersection guidance and refueling warning corresponding to the presence or absence of a passenger and the relationship between the driver and the passenger is stored for each guidance content. A voice guidance table 71 (see FIG. 2) described later is stored. The voice guidance table 71 is updated by downloading update information distributed from the information distribution center (not shown) via the communication device 17.

  In addition, the navigation control unit 13 constituting the navigation device 1 is used as a working memory when the CPU 41 as an arithmetic device and a control device for controlling the entire navigation device 1 and the CPU 41 perform various arithmetic processes. A program for voice guidance processing that performs voice guidance based on the presence / absence of a passenger and the relationship between the driver and the passenger, which will be described later, in addition to a RAM 42 that stores route data when the route is searched, a control program, and the like. (See FIG. 3) and the like, and an internal storage device such as a flash memory 44 for storing a program read from the ROM 43, a timer 45 for measuring time, and the like.

Furthermore, the navigation control unit 13 is connected to peripheral devices such as an operation unit 14, a liquid crystal display 15, a speaker 16, a communication device 17, and a microphone 18. Moreover, the microphone 18 is arrange | positioned at each seat and collects the voice of the passenger of each seat.
The communication device 17 is a communication unit such as a mobile phone network that communicates with an information distribution center (not shown). The communication device 17 transmits / receives updated map information and the like of the newest version with the information distribution center, and the voice guidance table 71. Update information is sent and received. Further, in addition to the information distribution center (not shown), the communication device 17 receives traffic information composed of information such as traffic congestion information transmitted from a road traffic information center and the like, congestion status of service areas, and the like.

  In addition, the camera ECU 51 includes a data receiving unit 51A that receives control information transmitted from the navigation control unit 13, and an image recognition unit 51B that performs image recognition of a captured image captured by the in-vehicle imaging camera 53. ing. Here, the image recognizing unit 51B performs image processing on the video signal of the in-vehicle imaging camera 53, recognizes the image of the passenger's face on the photographed image, and the family and friends who have an intimate relationship with the driver. Is compared with the pre-registered face image, it is determined whether or not the passenger's face resembles the face of the family or friend or the like, and the determination result is output to the navigation control unit 13.

  Next, voice guidance information that is stored in the voice guidance DB 26 and is guided at predetermined guidance timings such as guidance for intersections of guidance routes and warnings of fuel supply corresponding to the presence or absence of a passenger and the relationship between the driver and the passenger. An example of the voice guidance table 71 in which is stored for each guidance content will be described with reference to FIG. FIG. 2 is a diagram showing an example of the voice guidance table 71 stored in the voice guidance DB 26.

As shown in FIG. 2, the voice guidance table 71 includes “guidance contents” representing guidance contents of voice guidance, “passengers” representing the presence or absence of passengers corresponding to each “guidance contents”, and types of passengers. , “Voice guidance” representing voice guidance information for guidance corresponding to each “passenger”.
This “guidance” includes “intersection guidance” that guides the intersection at the time of route guidance, “break guidance” that guides the break, “congestion warning” that guides that there is traffic jam ahead in the course direction, Stored are “route-off guidance” for guiding the departure, “fuel warning” for guiding the refueling when the remaining amount of fuel is low, and the like.

  In “passenger”, “none” indicating that there is no passenger and “present” indicating that the passenger is present are stored. In addition, “present” indicating the presence of a passenger indicates “specific partner” indicating that the passenger is a specific partner such as a family in close relationship with the driver, and the passenger is other than the family. "Normal partner" indicating that it is a boss, a colleague, or the like of the workplace who is not intimately related to the driver. Then, “voice guidance” corresponding to each “guidance content” is stored for each of “none”, “specific partner”, and “normal partner” of “passenger”.

[Voice guidance processing]
Next, FIG. 3 shows a voice guidance process that is executed by the CPU 41 of the navigation device 1 configured as described above, and performs voice guidance based on the presence or absence of a passenger and the relationship between the driver and the passenger. This will be explained based on.

  FIG. 3 is a flowchart showing voice guidance processing for voice guidance based on the presence or absence of a passenger and the relationship between the driver and the passenger. 3 is stored in the ROM 43 provided in the navigation control unit 13 of the navigation device 1, and is executed by the CPU 41 at regular intervals (for example, every 10 msec to 100 msec).

  As shown in FIG. 3, first, in step (hereinafter abbreviated as “S”) 11, the CPU 41 detects the vehicle position and the vehicle direction by the current position detection unit 11, and represents coordinate data (for example, the vehicle position). , Latitude and longitude data) and the vehicle direction is stored in the RAM 42. And CPU41 performs the determination process which determines whether it became the guidance timing which performs voice guidance.

  Here, the guidance timing for voice guidance is at least 2 hours after the start of route guidance when the vehicle position reaches each position about 700m before, about 300m before and about 50m before the intersection at the time of route guidance. When it reaches the time for continuous travel and break guidance, or when it reaches a predetermined distance (for example, about 5 km) before traffic jam on the route acquired from the road traffic information center or information distribution center, For example, when the vehicle deviates from the guidance route, or when the remaining fuel of the host vehicle decreases (for example, when the fuel becomes 10 liters or less).

If it is determined that it is not the guidance timing for voice guidance (S11: NO), the CPU 41 ends the process.
On the other hand, if it is determined that the guidance timing for performing voice guidance has come (S11: YES), the CPU 41 stores “guidance content” corresponding to the guidance timing in the RAM 42, and then proceeds to the processing of S12.

  For example, when the guidance timing reaches each position about 700 m before the intersection, about 300 m before the intersection, and about 50 m before the intersection at the time of route guidance, the CPU 41 stores “intersection guidance” in the RAM 42 as “guidance contents”. To remember. Further, when the time for performing break guidance by running continuously for two hours or more after the start of route guidance is reached, the CPU 41 stores “break guidance” in the RAM 42 as “guidance contents”.

  When the CPU 41 reaches a predetermined distance before the traffic jam on the route acquired from the road traffic information center or the information distribution center (for example, about 5 km before), the CPU 41 displays “congestion warning” as “guidance content”. Store in the RAM 42. Further, when the CPU 41 deviates from the guidance route, the CPU 41 stores “route detour guidance” in the RAM 42 as “guidance content”. When the remaining fuel of the host vehicle is low (for example, when the fuel is 10 liters or less), the CPU 41 stores “fuel warning” in the RAM 42 as “guidance content”.

Subsequently, in S <b> 12, the CPU 41 executes determination processing for determining the presence or absence of a passenger based on detection signals from the passenger seat weight sensor 61 and the rear seat weight sensor 62.
And when it determines with there being no passenger (S12: NO), CPU41 transfers to the process of S13.

  In S <b> 13, the CPU 41 reads “guidance content” corresponding to the guidance timing from the RAM 42. Then, the CPU 41 uses this “guidance content” as “guidance content” in the voice guidance table 71 stored in the voice guidance DB 26, and “voice guidance” in which “passenger” corresponding to this “guidance content” is “none”. The voice guidance information stored in is read out. Thereafter, the CPU 41 performs the voice guidance of the read voice guidance information through the speaker 16, and then ends the process.

  For example, when the “guidance content” read from the RAM 42 is “intersection guidance” 700 m before and the guidance route is a left turn, the CPU 41 determines that the “passenger” corresponding to the “intersection guidance” in the voice guidance table 71 is “ The voice guidance information “700m ahead, left direction” stored in “Voice guidance” of “None” is read out, and voice guidance of this voice guidance information is performed via the speaker 16.

  When the “guidance content” read from the RAM 42 is “break guidance”, the CPU 41 stores the “passenger” corresponding to the “break guidance” in the voice guidance table 71 in the “voice guidance” where “no passenger” is “none”. The voice guidance information “I am tired from driving for a long time. Please take a break” is read out, and voice guidance of this voice guidance information is performed via the speaker 16. Therefore, it is possible to notify the driver that a break is necessary with easy-to-understand voice guidance.

  Further, when the “guidance content” read from the RAM 42 is “off-route guidance”, the CPU 41 “voice guidance” in which “passenger” corresponding to “off-route guidance” in the voice guidance table 71 is “none”. Is read out, and the voice guidance information of the voice guidance information is given via the speaker 16. Further, the CPU 41 re-searches the route from the vehicle position to the destination, and displays the recommended route on the map of the liquid crystal display (LCD) 15. Therefore, it is possible to notify the driver that the vehicle has deviated from the guidance route and that the route is to be searched again with easy-to-understand voice guidance.

On the other hand, if it is determined that there is a passenger (S12: YES), the CPU 41 proceeds to the process of S14.
In S <b> 14, the CPU 41 reads “guidance content” corresponding to the guidance timing from the RAM 42. Then, the CPU 41 uses this “guidance content” as “guidance content” in the voice guidance table 71 stored in the voice guidance DB 26, and “passenger” corresponding to this “guidance content” is “none”, “specific partner”. And each voice guidance information stored in the “voice guidance” of “ordinary partner” is read, and a determination process for determining whether or not all are the same voice guidance information is executed.

  Then, the voice guidance information stored in the “voice guidance” of “none”, “specific partner”, and “normal partner” corresponding to the “guidance contents” read from the voice guidance table 71 is In the case of all the same voice guidance information, that is, when the “guidance content” does not consider the presence or absence of a passenger (S14: NO), the CPU 41 ends the processing after executing the processing of S13. To do.

  For example, when the “guidance content” read from the RAM 42 is “traffic jam warning”, the CPU 41 uses this “guidance content” as “guidance content” in the voice guidance table 71 stored in the voice guidance DB 26. Each voice guidance information stored in “voice guidance” of “none”, “specific partner” and “normal partner” corresponding to “guidance contents” is read. And when each voice guidance information is the same, “XX km (the distance from the vehicle position to the traffic jam), there is a traffic jam ahead” (S14: NO), the CPU 41 proceeds to S13 above. After executing the process, the process ends.

  On the other hand, each of the voice guidance information stored in the “voice guidance” of “none”, “specific partner”, and “normal partner” corresponding to the “guidance contents” read from the voice guidance table 71 is If not all the same voice guidance information, that is, if the “guidance content” is for passengers (S14: YES), the CPU 41 proceeds to the processing of S15.

  In S <b> 15, the CPU 41 executes a determination process for determining whether or not the fellow passenger is a “specific partner”. Specifically, for example, when the “specific partner” is the driver's “family”, the CPU 41 sets the face of the passenger to the camera ECU 51 so that the face of the family who is intimately related to the driver. It is instructed to determine whether or not they are similar, and the determination result is acquired from the camera ECU 51. In addition, the CPU 41 reads out the departure point and destination of the guidance route from the RAM 42, and the home coordinate position (for example, latitude and longitude) where the departure point or destination is registered in the data recording unit 12 in advance, the home. It is determined whether or not it matches the address, home phone number, or the like.

  And when the determination result that the passenger's face resembles the face of a family intimately related to the driver is obtained from the camera ECU 51, or the departure point or destination is the home coordinate position, home address or home CPU 41 determines that the fellow passenger is the “specific partner” (S15: YES), and proceeds to the process of S16.

  In S <b> 16, the CPU 41 reads “guidance content” corresponding to the guidance timing from the RAM 42. Then, the CPU 41 uses this “guidance content” as “guidance content” in the voice guidance table 71 stored in the voice guidance DB 26, and “speech guidance” corresponding to this “guidance content” is “voice guidance” of “specific partner”. Is read out. Thereafter, the CPU 41 performs the voice guidance of the read voice guidance information through the speaker 16, and then ends the process.

  For example, when the “guidance content” read from the RAM 42 is “intersection guidance” 700 m before and the guidance route is a left turn, the CPU 41 determines that the “passenger” corresponding to the “intersection guidance” in the voice guidance table 71 is “ The voice of “○○○ m (the distance from the vehicle position to the intersection)” is stored in the “Voice Guidance” of the “specific partner” and goes to the left (guidance timing: when there is no conversation). Read the guidance information.

  Since the voice guidance information includes “guidance timing: when there is no conversation”, the CPU 41 collects the voices of the passengers via the microphones 18 arranged in each seat, and the conversation is interrupted. Wait for Then, when the conversation is interrupted, the CPU 41 calculates the distance from the own vehicle position to the intersection based on the map information stored in the map information DB 25, and sends “○○○ m (own vehicle position) via the speaker 16. To the intersection.) Go ahead and turn left. " Therefore, the CPU 41 can perform voice guidance without destroying the atmosphere in which the family is talking.

  When the “guidance content” read from the RAM 42 is “break guidance”, the CPU 41 changes the “passenger” corresponding to the “break guidance” in the voice guidance table 71 to “voice guidance” for the “specific partner”. The stored voice guidance information of “XX km (the distance from the vehicle position to the resting place) can be rested at XX ahead” is read, and the voice guidance of this voice guidance information is sent to the speaker 16. Do through. Therefore, the CPU 41 can perform voice guidance that does not give anxiety to the family traveling together.

  Further, when the “guidance content” read from the RAM 42 is “off-route guidance”, the CPU 41 selects “voice guidance” in which the “passenger” corresponding to “off-route guidance” in the voice guidance table 71 is “specific partner”. The voice guidance information “(without guidance, route re-search)” stored in “” is read out, and the voice guidance is stopped. Further, the CPU 41 re-searches the route from the vehicle position to the destination, and displays the recommended route on the map of the liquid crystal display (LCD) 15. Therefore, the CPU 41 can perform a re-search for a route from the vehicle position to the destination without giving anxiety to the traveling family.

  On the other hand, a determination result that the passenger's face does not resemble the face of a family intimately related to the driver is acquired from the camera ECU 51, and the departure point or destination is the home coordinate position, home address or home If the telephone number or the like does not match, the CPU 41 determines that the passenger is a “normal partner”, that is, the passenger is a superior or colleague in the workplace who is not intimately related to a driver other than the family. Or the like (S15: NO), and the process proceeds to S17.

  In S <b> 17, the CPU 41 reads “guidance content” corresponding to the guidance timing from the RAM 42. Then, the CPU 41 uses the “guidance contents” as “guidance contents” in the voice guidance table 71 stored in the voice guidance DB 26, and “speech guidance” corresponding to the “guidance contents” is “voice guidance” of the “normal partner”. Is read out. Thereafter, the CPU 41 performs the voice guidance of the read voice guidance information through the speaker 16, and then ends the process.

  For example, when the “guidance content” read from the RAM 42 is “intersection guidance” 700 m before and the guidance route is a left turn, the CPU 41 determines that the “passenger” corresponding to the “intersection guidance” in the voice guidance table 71 is “ The voice of “○○○ m (the distance from the vehicle position to the intersection)” is stored in the “voice guidance” of “normal partner” and goes to the left (guidance timing: when there is no conversation). Read the guidance information.

  Since the voice guidance information includes “guidance timing: when there is no conversation”, the CPU 41 collects the voices of the passengers via the microphones 18 arranged in each seat, and the conversation is interrupted. Wait for Then, when the conversation is interrupted, the CPU 41 calculates the distance from the own vehicle position to the intersection based on the map information stored in the map information DB 25, and sends “○○○ m (own vehicle position) via the speaker 16. To the intersection.) Go ahead and turn left. " Therefore, the CPU 41 can perform voice guidance at an appropriate timing without destroying the atmosphere in which it is talking with a boss or a colleague in the workplace.

  In addition, when the “guidance content” read from the RAM 42 is “break guidance”, the CPU 41 changes the “passenger” corresponding to the “break guidance” in the voice guidance table 71 to “voice guidance” of “normal partner”. Stored voice guidance information of "Thank you for your long time driving. XX km (the distance from your vehicle position to the resting place). Voice guidance of information is performed through the speaker 16. Therefore, the CPU 41 can give a careful voice guidance to a boss, a colleague, or the like of the workplace in which he / she is riding.

  When the “guidance content” read from the RAM 42 is “fuel warning”, the CPU 41 “voice guidance” in which the “passenger” corresponding to the “fuel warning” in the voice guidance table 71 is “normal partner”. The voice guidance information “XXm (the distance from the vehicle position to the gas station) ahead, there is a gas station” stored in is read out, and the voice guidance information of the voice guidance information is read via the speaker 16. Do it. Therefore, the CPU 41 can provide the refueling guidance without giving uneasiness to the boss or colleagues in the workplace where the passenger is traveling.

  As described above in detail, in the navigation device 1 according to the present embodiment, the CPU 41 stores “guidance contents” corresponding to the guidance timing in the RAM 42 when the guidance timing for voice guidance comes. Then, when there is no passenger, the CPU 41 reads “guidance content” corresponding to the guidance timing from the RAM 42, and sets “guidance content” as “guidance content” in the voice guidance table 71. The voice guidance information stored in the “voice guidance” in which the corresponding “passenger” is “none” is read out. Thereafter, the CPU 41 performs voice guidance of the read voice guidance information via the speaker 16.

  Thus, by setting the voice guidance information stored in the “voice guidance” in which “passenger” corresponding to each “guidance content” in the voice guidance table 71 is “none” to a content that is easy for the driver to understand. Thus, it is possible to provide appropriate voice guidance to the driver. For example, when there is no passenger, the CPU 41 gives voice guidance to the driver, “To make it easier for the driver to understand. Therefore, appropriate voice guidance can be performed.

  In addition, when it is the guidance timing for performing voice guidance, the CPU 41 reads “guidance content” corresponding to the guidance timing from the RAM 42 and “guidance content” is voiced. As the “guidance contents” of the guidance table 71, the “passenger” corresponding to the “guidance contents” reads out the voice guidance information stored in the “voice guidance” of the “specific partner”. Thereafter, the CPU 41 performs voice guidance of the read voice guidance information via the speaker 16.

  As a result, the “passenger” corresponding to each “guidance content” in the voice guidance table 71 gives anxiety to the “family” people about the voice guidance information stored in the “voice guidance” of the “specific partner”. By setting the content so that there is no content, it is possible to provide appropriate voice guidance to the “family” people who are on board. For example, if a “family” is on board, a voice guidance will be given to the driver that they can take a break at XX km ahead. It becomes possible, and it becomes possible to perform appropriate voice guidance that does not give a sense of anxiety to the family riding on the vehicle.

  When the guidance timing for voice guidance is reached, if a boss or a colleague in the workplace is on board, the CPU 41 reads “guidance content” corresponding to the guidance timing from the RAM 42 and reads “guidance content”. "Guidance content" in the voice guidance table 71, "Passenger" corresponding to this "Guidance content" reads out the voice guidance information stored in "Voice guidance" of "Normal partner". Thereafter, the CPU 41 performs voice guidance of the read voice guidance information via the speaker 16.

  Thereby, the “passenger” corresponding to each “guidance content” in the voice guidance table 71 stores the voice guidance information stored in the “voice guidance” of the “normal partner” with the boss or colleague in the workplace where he / she is riding. By setting the content so as not to give anxiety to the other people, it is possible to provide appropriate voice guidance to bosses, colleagues, and the like who are traveling with them. For example, when the boss at the workplace is on board, the CPU 41 gives voice guidance to the driver, “Thank you for your long time driving. There is a resting place at XX km ahead.” On the other hand, it is possible to notify that a break is necessary, and it is possible to provide a polite and appropriate voice guidance without giving anxiety to the boss or the like of the workplace where the passenger is traveling.

  In addition, the CPU 41 displays “guidance timing: when there is no conversation” in the voice guidance information stored in the “voice guidance” selected from the voice guidance table 71 corresponding to a family member, a boss or a colleague, etc. who is on the ride. ”Is collected, the passenger's voice is collected via the microphones 18 arranged in each seat, and the conversation is interrupted. Then, the CPU 41 performs voice guidance of this voice guidance information via the speaker 16 when the conversation is interrupted.

  As a result, the CPU 41 can perform voice guidance at an appropriate timing without destroying the atmosphere in which the family, the boss or colleagues in the workplace are talking.

  In addition, this invention is not limited to the said Example, Of course, various improvement and deformation | transformation are possible within the range which does not deviate from the summary of this invention. For example, the following may be used.

  (A) The CPU 41 may be configured to detect the presence / absence of a passenger in the passenger seat or the rear seat via a sensor that detects attachment / detachment of a seat belt provided in each seat or an infrared sensor.

  (B) In S15, the CPU 41 reads the starting point and the destination of the guidance route from the RAM 42, and the home position where the starting point or the destination is registered in the data recording unit 12 in advance (for example, latitude and It may be determined whether or not it coincides with a home address, a home phone number, or the like. If the departure point or destination coincides with the home coordinate position, home address, home phone number, etc., the CPU 41 determines that the passenger is “family”, that is, the passenger is “specific partner”. It may be determined that there is (S15: YES), and the process may proceed to S16.

  On the other hand, if the departure point or destination does not match any of the home coordinate position, home address, home telephone number, etc., the CPU 41 is not a “family” for the passenger, that is, the passenger is driving other than the family. It may be determined that the person is a “normal partner” such as a boss or colleague in the workplace who is not intimately related to the person (S15: NO), and the process may proceed to S17. Thereby, it is not necessary to provide the camera ECU 51 and the in-vehicle imaging camera 53.

DESCRIPTION OF SYMBOLS 1 Navigation apparatus 11 Present location detection part 12 Data recording part 13 Navigation control part 26 Voice guidance DB
41 CPU
42 RAM
43 ROM
51 Camera ECU
53 In-vehicle imaging camera 61 Passenger seat weight sensor 62 Rear seat weight sensor 71 Voice guidance table

Claims (4)

Passenger detection means for detecting a passenger,
Voice guidance information storage means for storing a plurality of types of voice guidance information to guide the user according to the guidance contents according to the presence or absence of a passenger
Selection means for selecting the voice guidance information based on the presence or absence of a passenger detected via the passenger detection means at a predetermined guidance timing;
Guidance means for guiding the voice guidance information selected via the selection means to the user;
A navigation device characterized by comprising: The voice guidance information storage means stores a plurality of types of voice guidance information for specific passengers for guidance when a specific passenger rides, according to guidance contents,
2. The navigation device according to claim 1, wherein the selection unit selects the specific passenger's voice guidance information when the specific passenger is detected through the passenger detection unit. . The passenger detection means includes intimacy determination means for determining whether the specific passenger is intimate with the user based on at least one of a departure place and a destination,
The plurality of types of specific passenger voice guidance information includes intimate passenger guidance information to be guided when a specific passenger who is intimate with the user rides,
The selection means selects the guidance information for intimate passengers when the specific fellow passenger is determined to be intimate with the user through the intimacy determination means. The navigation device described. Conversation detecting means for detecting a conversation state between the user and the passenger;
Determination means for determining whether or not the conversation state continues based on a detection result of the conversation detection means;
With
When it is determined that the conversation state continues at the predetermined guidance timing, the guidance unit guides the user to the voice guidance information selected via the selection unit when the conversation is interrupted. The navigation device according to any one of claims 1 to 3, wherein the navigation device is characterized in that:

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