JP2006250893A - Vehicle guide device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a vehicle guide device for properly performing guide operation at each user using a vehicle, even when a plurality of the users use the same vehicle. <P>SOLUTION: A memory 6 stores identification information of the plurality of the users driving the vehicle and the number of passing each intersection, when the user has driven the vehicle in the past. When user authentication is successful, ECU 8 counts the passing number of times classified by each intersection, whenever passing each intersections by allowing the user to drive the vehicle. When the vehicle nears each intersection, the intersection is widened; and displayed on a display 3 and voice output is performed from a speaker 9, when the passing number of times of the intersection is the prescribed number of times or smaller. As a result, for instance, as for rental car or car sharing, even when the plurality of the users use the same vehicle, proper guide operation is performed for each user who uses the vehicle. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a vehicular guidance device that stores a travel history when each user drives a vehicle and performs a guidance operation according to the travel history.

2. Description of the Related Art Conventionally, a device that performs a guidance operation according to a travel history of a vehicle is known. For example, in the apparatus disclosed in Patent Document 1, the number of voice guidance performed when the vehicle passes through each intersection and the date and time when the voice guidance was last performed are stored as the travel history of the vehicle. And when the vehicle approaches an arbitrary intersection, the number of times voice guidance has been performed in the past for the intersection is N times or less, or when M days or more have passed since the last voice guidance was performed. Provides voice guidance for the intersection. If the above conditions are not satisfied, voice guidance for the intersection is not performed.
Japanese Patent Laid-Open No. 2002-236028

  In the conventional device, when a vehicle approaches an intersection where the number of times voice guidance has been performed in the past is N times or less, or an intersection that has passed M days or more after the last voice guidance, voice guidance is performed for the intersection. It was. However, when a single vehicle is used by multiple users, such as car rental or car sharing, for example, the number of times voice guidance is given for each intersection and the number of days that have passed since the last voice guidance was given Therefore, the conventional apparatus cannot be used as it is.

  The present invention has been made in view of the above problems, and even when a plurality of users use the same vehicle, a vehicle guide capable of performing an appropriate guide operation for each user who uses the vehicle. The purpose is to provide a device.

  In order to achieve the above object, in the vehicle guidance apparatus according to claim 1, registration means for registering a plurality of users who use the vehicle, and an identification signal output from the authentication device are acquired and registered by the registration means. Authentication means for performing user authentication as to whether or not the user falls under a plurality of registered users, and when the authentication means has succeeded in user authentication, any one of the plurality of users registered by the registration means is identified from the identification signal. For each user identified by the identifying means, the vehicle traveling history of the user's driving is stored for each user, and guidance is based on the stored traveling history of the user and the traveling state of the vehicle. And a control means for performing the operation.

  Thus, in the vehicle guidance apparatus of the present invention, the authentication unit acquires the identification signal output from the authentication device, and performs user authentication as to whether or not the user corresponds to a plurality of users registered by the registration unit. When the authentication unit succeeds in user authentication, the identification unit identifies which user among the plurality of users registered by the registration unit. The control means stores, for each user identified by the identification means, a travel history of the vehicle driven by the user, and performs a guidance operation based on the stored travel history of the user and the travel situation of the vehicle. Thereby, even when a plurality of users use the same vehicle, such as a rental car or car sharing, for example, this vehicle guidance device can be used by any one of a plurality of registered users. For each identified user, the driving history of the vehicle by the driving of the user is stored, and the guidance operation is performed when the driving history of the user and the driving status of the vehicle meet predetermined conditions. Therefore, it is possible to perform an appropriate guidance operation for each user who uses the vehicle.

  According to a second aspect of the present invention, there is provided storage means for storing map information including road information, and the control means stores the map information stored in the storage means as a travel history of the vehicle driven by the user identified by the identification means. From the above, it is desirable to count the number of times the vehicle has passed each intersection, and when the vehicle approaches an intersection where the number of passages is a predetermined number of times or less, it is desirable to perform guidance regarding the intersection as a guidance operation. There are many cases where the user who drives the vehicle is not familiar with the intersection where the number of passes counted as the traveling history is equal to or less than the predetermined number. By providing guidance regarding such an intersection, a user who drives the vehicle sufficiently understands information regarding the intersection, such as whether the intersection is a three-way or which exit direction from the intersection. be able to.

  According to a third aspect of the present invention, the map information stored in the storage means includes the area information, and the control means stores the storage means when the vehicle approaches an intersection where the number of times of passage is a predetermined number or more. It is desirable to guide the area information around the intersection from the map information stored in As a result, for an intersection that is already familiar to the user who drives the vehicle, for example, there are famous places, historic sites, stores, etc. in the vicinity of the intersection.

  According to a fourth aspect of the present invention, there is provided storage means for storing map information including information relating to the building and information to be noted when the vehicle enters the building, and the control means is provided for the user identified by the identification means. As the driving history of the vehicle by driving, the number of times the user has used the vehicle is counted, and when the vehicle is about to enter the building when the number of times the vehicle has been used is less than or equal to the predetermined number of times, stored as a guidance operation in the storage It is desirable to guide information to be noted when entering the building from the map information. As a result, when a user with a low number of uses of the vehicle is driving the vehicle, for example, when the vehicle enters a building such as a gas station, the vehicle characteristics (the vehicle filler port is Etc.), and it is possible to ensure that the user knows information to be careful when entering the building, such as paying attention to vehicles and pedestrians traveling in the opposite lane. .

  As described in claim 5, the map information stored in the storage means includes regional information, and the control means tries to enter the building when the number of times the vehicle is used is a predetermined number or more. Then, it is desirable to guide local information around the building. As a result, for users who are familiar with driving the vehicle, instead of information that should be noted when entering the building, the vehicle enters, for example, there are sights / historic sites or stores near the building. The user can also grasp the local information around the building to be attempted.

  As described in claim 6, the authentication device and the authentication means communicate according to a communication protocol based on the Bluetooth system, and the authentication means performs user authentication using a communication protocol based on the Bluetooth system. It is desirable. The Bluetooth method is a kind of wireless communication protocol, and can authenticate and identify the device of the communication partner. By using a communication protocol based on the Bluetooth method, the authentication unit can reliably perform user authentication.

  As described in claim 7, the authentication device is preferably a portable device possessed by each of a plurality of users registered by the registration means. Thereby, the user who uses a vehicle can receive user authentication of an authentication means by the portable machine which the said user possesses, such as a smart key, for example, and is convenient.

  The authentication unit performs user authentication for each of the acquired identification signals when the plurality of identification signals are acquired from the portable device, and the identification unit is configured so that the authentication unit performs user authentication. When successful, it is desirable to identify the user of the portable device connected to the call device installed in the vehicle among the plurality of users registered by the registration means. This is because a user who drives the vehicle usually connects a portable device to the communication device installed in the vehicle.

(First embodiment)
FIG. 1 is a block diagram showing the overall configuration of the vehicle guide device according to the first embodiment of the present invention. The vehicle guidance device operates by being incorporated in the car navigation device A, and performs user authentication using a mobile phone B possessed by the user. Then, the number of times that the vehicle has passed through each intersection (running history) by driving the user is stored, and when the vehicle approaches an intersection where the number of times of passage is a predetermined number or less, a guidance operation is performed.

  First, the car navigation apparatus A will be described.

  As shown in FIG. 1, the position detector 1 includes a geomagnetic sensor 11, a gyroscope 12, a distance sensor 13, and a GPS receiver 14, and detects the current position and the traveling direction of the vehicle.

  The geomagnetic sensor 11 has a configuration in which an exciting winding for exciting the annular ferromagnetic material such as permalloy, for example, and two orthogonal detection windings for direction detection are wound. And the voltage which generate | occur | produces in two detection windings by applying an alternating voltage to an excitation winding is measured, and the advancing direction of a vehicle is detected as an absolute direction based on this.

  The gyroscope 12 includes a crystal resonator, for example, and detects the yaw angular velocity (yaw rate) of the vehicle from vibration based on Coriolis force generated when the vibrator is vibrated.

  The distance sensor 13 detects the moving distance of the vehicle based on, for example, rotation signals of wheels and axles (not shown) mounted on the vehicle.

  The GPS receiver 14 receives a GPS signal for position measurement transmitted from a GPS satellite (not shown), which is an artificial satellite, and detects the latitude, longitude, and altitude of the point where the vehicle is currently traveling.

  The position detector 1 performs highly accurate position detection by interpolating the detection results of the four devices described above. Of course, depending on the required detection accuracy, it is not necessary to provide all the four devices described above. Note that the detection of the current position and the traveling direction of the vehicle may be performed based on detection signals from other sensors such as a steering sensor.

  The data storage 2 is, for example, a hard disk, and stores map information data including at least road information, building information, and area information, and map drawing data for displaying a map image. Map information data and map drawing data may be stored in a CD-ROM, DVD-ROM, or the like.

  The display 3 is a small vehicle-mounted display, and performs various navigation displays including display of map images. For the various navigation displays described above, an in-vehicle head-up display or the like may be used.

  The operation switch 4 is composed of a plurality of mechanical switches, and instructs the car navigation apparatus A to start and end various navigation operations. The operation switch 4 also has a registration key, and inputs identification information stored in a memory 6 to be described later. The input of the above-described instruction and identification information may be configured by a touch switch including a display panel that displays operation keys and a touch panel that detects that the operation keys displayed on the display panel are pressed.

  The remote controller 5 is, for example, a multi-function remote controller including various function switches, and can perform almost the same operation as the above-described operation switch 4 via the remote control sensor 51.

  The memory 6 is a non-volatile storage element, and stores (registers) identification information of a plurality of users who drive a vehicle on which the car navigation device A is mounted. This identification information is input from the operation switch 4 or the remote controller 5. Further, in correspondence with the stored identification information of a plurality of users, the cumulative number of times that the user has passed through each intersection when the vehicle has been driven in the past (hereinafter referred to as the number of times of passage) is stored for each intersection. The identification information and the number of times of passing through each intersection may be stored using a memory card or the like for each user.

  The BT communication device 7 receives an identification signal output from the mobile phone B and transmits an authentication success signal to the mobile phone B in accordance with a known Bluetooth protocol. In addition, transmission / reception of various data for registering the mobile phone B as a communication partner is also performed. The aforementioned Bluetooth protocol is a type of wireless communication protocol, and performs communication at a data transfer rate of 1 Mbps using radio waves in a band of 2.45 GHz. At that time, if the distance between the devices is within 10 m, communication is possible even if there is an obstacle. As for the Bluetooth protocol, please refer to http: // www. Bluetooth. The details are described in “com /”, and the description thereof will be omitted.

  The ECU 8 is a navigation ECU, and when the car navigation apparatus A is activated, the mobile phone B is registered as a communication partner in accordance with the Bluetooth protocol. Specifically, the ECU 8 transmits a link key request signal for requesting the mobile phone B to transmit a predetermined link key. Thereafter, when a link key is transmitted from the mobile phone B and the link key matches a predetermined link key, the mobile phone B sets a BT address and a BT name, and creates registration information together with the link key. Register B as the communication partner. For details on registration of a communication partner using the Bluetooth protocol, refer to http: // www. Bluetooth. com / etc., and the description thereof is omitted.

  Further, the ECU 8 of the present embodiment has two types of operation modes, a normal mode and a learning mode. After the mobile phone B is registered as the communication partner, when the BT communication device 7 receives the identification signal from the mobile phone B, the ECU 8 checks whether or not the identification information corresponding to the identification signal is stored in the memory 6. Authenticate the user. When the user authentication fails, the ECU 8 sets the operation mode to the normal mode and starts the operation. The specific operation of the ECU 8 in the normal mode is to read out map information data and map drawing data around the current position of the vehicle from the data storage 2 based on the current position and traveling direction of the vehicle detected by the position detector 1. . And the map image which superimposed the mark which shows the present position of a vehicle is produced | generated, and while outputting and displaying on the display 3, various voice guidance is output from the speaker 9. FIG. In addition, when the destination is set, the travel route to the destination is searched, the searched travel route is superimposed on the map image, and the speaker 9 is driven so as to drive the vehicle along the travel route. Voice guidance is also output from.

  On the other hand, when the above-described user authentication is successful, the ECU 8 transmits an authentication success signal from the BT communication device 7 to the mobile phone B, and then sets the operation mode to the learning mode and starts the operation. In this learning mode, in addition to the operation in the normal mode described above, the ECU 8 reads out the number of times of passage at each intersection when the authenticated user has driven the vehicle in the past from the memory 6, and each time the user drives the vehicle Each time the vehicle passes through an intersection, the number of passes through the intersection is counted. Further, when the vehicle approaches each intersection, if the number of times the intersection has passed is equal to or less than the predetermined number, a guidance operation regarding the intersection is performed. In this guidance operation, the vicinity of the intersection is enlarged and displayed on the display 3, and voice guidance such as that the intersection is a three-way road is output from the speaker 9. In addition, when the travel route to the destination is displayed in a superimposed manner on the map image, voice guidance is provided for the exit route from the intersection. When the number of times of passage through the intersection is equal to or greater than the predetermined number, the ECU 8 reads out the area information around the intersection from the data storage device 2 such as, for example, famous places / historic sites and store information around the intersection, and provides voice guidance from the speaker 9. Is output. Thereafter, when the user finishes driving the vehicle, for example, by stopping the engine of the vehicle, the number of times the user has passed through each intersection is overwritten and stored in the memory 6.

  The cellular phone B has a function of performing wireless communication by registering the car navigation device A as a communication partner in accordance with the Bluetooth protocol. And while transmitting an identification signal to the car navigation apparatus A, an authentication success signal is received from the car navigation apparatus A. This mobile phone B is owned by each user who uses the vehicle.

  FIG. 2 is a flowchart relating to processing in which the vehicle guidance apparatus of the present embodiment performs user authentication and sets an operation mode. The process of this flowchart is executed every time the car navigation apparatus A is activated.

  In step 201, the ECU 8 acquires the identification signal received by the BT communication device 7. In step 202, it is determined whether the identification information corresponding to the identification signal acquired in step 201 is stored in the memory 6, that is, whether the user authentication is successful. If the identification information corresponding to the identification signal is stored in the memory 6, that is, if the user authentication is successful, the process proceeds to step 203. If the identification information corresponding to the identification signal is not stored in the memory 6, that is, if the user authentication fails, the process proceeds to step 204.

  In step 203, the operation mode is set to the learning mode, and the process ends. Thus, every time the user passes through each intersection by driving the vehicle, the number of times the intersection has passed is counted. In step 204, the operation mode is set to the normal mode and the process is terminated.

  FIG. 3 is a flowchart relating to processing in which the vehicle guidance apparatus of the present embodiment performs a guidance operation. The processing of this flowchart is executed when the vehicle approaches each intersection when the operation mode of the ECU 8 is the learning mode.

  In step 301, the ECU 8 determines whether or not the number of times of passage at an intersection where the vehicle is approaching is equal to or less than a predetermined number. If the number is less than the predetermined number, the process proceeds to step 302. If the number is equal to or greater than the predetermined number, the process proceeds to step 303.

  In step 302, the vicinity of the intersection where the vehicle is approaching is enlarged and displayed on the display 3, and voice guidance is output from the speaker 9, and the process is terminated. When the number of times of passage at an intersection where the vehicle is approaching is a predetermined number or less, the user who is driving the vehicle is often not familiar with the intersection. The area around the intersection is enlarged on the display 3 and the vehicle is driven by outputting voice guidance from the speaker 9 such as, for example, whether the intersection is a three-way or the exit direction from the intersection. The user can fully understand the intersection.

  In step 303, the area information around the intersection where the vehicle is approaching is read from the data storage device 2, voice guidance is output from the speaker 9, and the process is terminated. Thereby, when the intersection is already familiar to the user who drives the vehicle, the user can be made aware of regional information around the intersection, for example, there are famous places / historic sites and shops near the intersection.

  As described above, in the vehicle guidance device according to the present embodiment, the identification information of a plurality of users who drive the vehicle and the number of times that the user has passed through each intersection when driving the vehicle in the past are stored in the memory 6. The When the user authentication is successful, the ECU 8 counts the number of passages for each intersection every time the user passes through each intersection by driving the vehicle. When the vehicle approaches each intersection, if the number of times the intersection has passed is equal to or less than the predetermined number, the intersection is enlarged on the display 3 and voice guidance is output from the speaker 9. Thus, even when a plurality of users use the same vehicle, such as a rental car or car sharing, the present vehicle guide device can perform an appropriate guide operation for each user who uses the vehicle. Become.

(Second Embodiment)
Next, a second embodiment of the present invention will be described. The vehicle guidance device of the present embodiment stores the number of times the vehicle is used by each registered user, and when the vehicle tries to enter the building when the number of times the vehicle is used by the user is equal to or less than a predetermined number, Perform guidance operation. The point mentioned above is the point of this embodiment.

  In addition to the functions of the first embodiment described above, the data storage device 2 of the present embodiment stores voice data for voice guidance of information to be noted when the vehicle enters the building.

  The memory 6 of the present embodiment replaces the number of times each user has passed each intersection by driving the vehicle in the first embodiment described above with the number of times each user has started the vehicle (hereinafter referred to as vehicle use). Number of times).

  The ECU 8 of the present embodiment replaces the count of the number of times of passing through each intersection by driving the authenticated user's vehicle when the operation mode is set to the learning mode in the first embodiment described above with the operation mode being Every time the learning mode is set, it is assumed that the authenticated user uses the vehicle, and the number of times the user uses the vehicle is counted. When the vehicle approaches each intersection, if the number of times that the authenticated user passes through the intersection is equal to or less than the predetermined number, the periphery of the intersection is enlarged on the display 3 and voice guidance is output from the speaker 9. When the vehicle tries to enter the building instead of the guidance operation, if the number of times the vehicle has been used by the authenticated user is less than or equal to the predetermined number of times, audio data of information that should be noted when entering the building is displayed. A guidance operation for reading out from the data storage device 2 and outputting voice guidance from the speaker 9 is performed. If the number of times the vehicle has been used by the authenticated user is greater than or equal to the predetermined number, the area information around the building is read from the data storage device 2 and voice guidance is output from the speaker 9.

  Other configurations and operations are the same as in the case of the first embodiment described above, and a description thereof will be omitted.

  FIG. 4 is a flowchart relating to processing in which the vehicle guidance apparatus of the present embodiment performs a guidance operation. The process of this flowchart is executed when the vehicle tries to enter the building when the operation mode of the ECU 8 is the learning mode.

  In step 401, the ECU 8 reads from the memory 6 the number of times the authenticated user has used the vehicle. In step 402, it is determined whether or not the number of times of use of the vehicle read in step 401 is equal to or less than a predetermined number. If the number of times the vehicle is used is less than or equal to the predetermined number, the process proceeds to step 403. Otherwise, go to step 404.

  In step 403, voice data of information to be noted when the vehicle enters the building is read from the data storage device 2, voice guidance is output from the speaker 9, and the process ends.

  In step 404, the area information around the building that the vehicle is about to enter is read from the data storage device 2, voice guidance is output from the speaker 9, and the process is terminated. Thereby, when the authenticated user is familiar with driving the vehicle, for example, there are famous places / historic sites and shops near the building, and the user can grasp the area information around the building. .

  As described above, in the vehicle guidance device according to the present embodiment, when the vehicle is about to enter the building, if the number of times the vehicle is used by the authenticated user is equal to or less than the predetermined number, the vehicle enters the building. The voice data of the information to be noted at the time is read from the data memory 2 and the voice guidance is output from the speaker 9. As a result, when a user with a low number of uses of the vehicle is driving, for example, even when the vehicle enters a building such as a gas station, the vehicle characteristics of the vehicle (the fuel filler port of the vehicle is on the left or right side of the vehicle). Etc.) and information that should be noted when entering a building, such as paying attention to a vehicle and a pedestrian traveling in an oncoming lane, can be surely grasped.

  In each of the above-described embodiments, user authentication is performed using the mobile phone B possessed by each user who uses the vehicle. However, the present invention is not limited to this, and portable devices individually owned by each user, for example, smart keys prepared for each user may be used. Furthermore, in addition to the functions described above, the user may be able to manually input an authentication code from the operation switch 4 or the remote controller 5.

  Further, in each of the above-described embodiments, the Bluetooth protocol is used for communication with the mobile phone B. However, the present invention is not limited to this, and communication may be performed using a known TCP / IP communication protocol or the like. good. However, in order to reliably perform user authentication, it is preferable to use the Bluetooth protocol.

  Further, in each of the above-described embodiments, it is assumed that a single occupant gets on the vehicle, and the user authentication operation and the identification operation are performed by a mobile phone possessed by the occupant. However, a plurality of occupants may board the vehicle. In such a case, after performing user authentication with a mobile phone possessed by each occupant, an occupant carrying a mobile phone connected to a communication device mounted on the vehicle, such as a hands-free device, uses the vehicle. It may be identified. Thereby, even when a plurality of occupants board the vehicle, it is possible to identify which occupant uses the vehicle. The reason why a passenger who has a mobile phone connected to a communication device installed in the vehicle recognizes that the vehicle is used is that the user who drives the vehicle usually connects the mobile phone to the communication device installed in the vehicle. It is to do.

  Finally, in each of the above-described embodiments, this device is incorporated and operated in the car navigation device A. However, the present invention is not limited to this, and any device having a navigation function can be incorporated and used. can do. However, it should be noted that the most preferable case is the case where it is incorporated into a car navigation device and operates.

1 is a block diagram illustrating an overall configuration of a vehicle guide device according to a first embodiment of the present invention. It is a flowchart regarding the process which the guidance apparatus for vehicles in 1st Embodiment performs user authentication and sets an operation mode. It is a flowchart regarding the process which the guidance apparatus for vehicles in 1st Embodiment performs guidance operation | movement. It is a flowchart regarding the process which the guidance apparatus for vehicles in 2nd Embodiment performs guidance operation | movement.

Explanation of symbols

DESCRIPTION OF SYMBOLS A ... Car navigation apparatus 1 ... Position detector 11 ... Geomagnetic sensor 12 ... Gyroscope 13 ... Distance sensor 14 ... GPS receiver 2 ... Data input device 3 ... Display 4 ... Operation switch 5 ... Remote control 51 ... Remote control sensor 6 ... Memory 7 ... BT communication equipment 8 ... ECU
9 ... Speaker B ... Mobile phone

Claims (9)

A registration means for registering a plurality of users using the vehicle;
An authentication unit that obtains an identification signal output from an authentication device and performs user authentication as to whether the user corresponds to the plurality of users registered by the registration unit;
When the authentication unit has succeeded in user authentication, an identification unit for identifying which one of the plurality of users registered by the registration unit from the identification signal;
Control means for storing a travel history of the vehicle by the user's driving for each user identified by the identification means and performing a guidance operation based on the stored travel history of the user and the travel situation of the vehicle; A vehicle guidance device comprising: A storage means for storing map information including road information is provided,
The control means counts the number of times the vehicle has passed each intersection from the map information stored in the storage means, as the travel history of the vehicle driven by the user identified by the identification means,
The vehicle guidance device according to claim 1, wherein when the vehicle approaches an intersection where the number of times of passage is equal to or less than a predetermined number, guidance regarding the intersection is performed as the guidance operation. The map information stored in the storage means includes regional information,
The control means guides area information around the intersection from the map information stored in the storage means when the vehicle approaches an intersection where the number of times of passage is a predetermined number or more. The vehicle guide device according to claim 2. A storage means for storing map information including information relating to the building and information to be noted when the vehicle enters the building;
The control means counts the number of times the vehicle is used by the user as a running history of the vehicle by the user's driving identified by the identification means,
When the vehicle tries to enter a building when the number of times of use of the vehicle is less than or equal to a predetermined number of times, use caution when entering the building from the map information stored in the storage means as the guidance operation. The vehicle guidance device according to claim 1, wherein information to be guided is guided. The map information stored in the storage means includes regional information,
5. The vehicle according to claim 4, wherein the control means guides area information around the building when the vehicle tries to enter the building when the number of uses of the vehicle is a predetermined number of times or more. Guidance device. The authentication device and the authentication means communicate according to a communication protocol based on the Bluetooth method,
The vehicular guidance device according to any one of claims 1 to 5, wherein the authentication unit performs the user authentication using a communication protocol based on the Bluetooth method. The vehicular guidance device according to any one of claims 1 to 6, wherein the authentication device is a portable device possessed by each of the plurality of users registered by the registration unit. The authentication means, when acquiring a plurality of identification signals from the portable device, performs the user authentication for each of the acquired identification signals,
The identification unit identifies a user of a portable device connected to the call device mounted on the vehicle among the plurality of users registered by the registration unit when the authentication unit succeeds in the user authentication. The vehicle guidance device according to claim 7. The vehicle guide device according to any one of claims 1 to 8, wherein the vehicle guide device operates by being incorporated in a vehicle navigation device.

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