JP2014038104A - Navigation device, route guidance method and route guidance program - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a navigation device capable of guiding the presence of the gateway of an expressway placed together with a specific facility ahead without confusing a user.SOLUTION: A navigation device includes guidance means for, when a traveling object is determined to have arrived at a spot of a predetermined distance ahead of a guidance spot included in a set guidance route, outputting the guidance information of the pertinent guidance spot with a voice. The guidance means is configured to, when the guidance route is set such that the traveling object can pass the gateway of an expressway installed in the specific facility of the expressway, and the traveling object is determined to have arrived at a guidance spot immediately before it goes to the specific facility, output the classification of the gateway with a voice, and not to, after the traveling object is determined to have passed through the immediately preceding guidance spot, output the classification of the gateway with a voice. Thus, it is possible to guide the presence of the gateway of the expressway installed in the specific facility of the expressway ahead without confusing the user.

Description

  The present invention relates to a method for guiding a route.

  Current navigation products are provided with a function of searching for a route to a destination arbitrarily designated by a user and performing route guidance according to the obtained route. Usually, when a vehicle reaches a position a predetermined distance before a guide point such as an intersection on the route, the navigation device provides the user with guide information at the guide point by a navigation image and a voice message. The guide point is, for example, an intersection on a general road or an interchange on a highway, and the guide information at the guide point is information that prompts the vehicle to turn right or left, for example. In Patent Document 1, any lane can be traveled even at a branch point where the road branch of the map displayed on the screen of the display device differs from the actual road branch, such as a junction of an expressway or a branch of an exit lamp. An in-vehicle navigation system that informs a user in advance whether a destination can be reached is disclosed.

JP-A-9-196694

  However, in the route guidance method described above, the entrance / exit of an expressway provided in a specific facility such as a service area or a parking area on the expressway (hereinafter, the service area is abbreviated as “SA” and the parking area is abbreviated as “PA”). In the case of, I did not provide guidance for the entrance. This is because there is a parking lot or the like in a specific facility such as SA or PA, and since the vehicle can freely travel in the specific facility, it is difficult to properly guide the entrance and exit. For example, a smart interchange (hereinafter abbreviated as “smart IC”) is provided at the entrance / exit of an expressway that is attached to such a specific facility. Smart IC is an interchange exclusively for ETC vehicles. Thus, even if the user wants to use the entrance / exit of an expressway that is attached to a specific facility such as a smart IC, it is difficult to use because there is no guidance. In addition, since the user knows that there is an entrance / exit only after seeing the entrance / exit by not performing the guidance, there is a problem that it may be confused.

  Examples of the problems to be solved by the present invention include those described above. The objective of this invention is providing the navigation apparatus which can guide that there is an entrance / exit of the highway attached to the specific facility ahead without confusing a user.

  The invention according to claim 1 is a navigation device, comprising: a guidance unit that outputs an image indicating guidance information of the guidance point when the moving body approaches the guidance point included in the set guidance route. In the case where the guide route is set so as to pass through an exit of an expressway installed at a specific facility on the expressway, the guide means moves the mobile object traveling on the expressway from the expressway. When approaching a branch guide point to a specific facility where an exit is installed, an image indicating the type of the exit is output.

  The invention according to claim 2 is a navigation device, and when the guidance route is set so as to pass through a smart interchange that is an exit of an expressway installed in a service area or a parking area of an expressway, When the moving object traveling on the expressway reaches a point a predetermined distance before the branch point from the expressway to the service area or parking area where the smart interchange is installed, an image showing the smart interchange is displayed. Guiding means for outputting guidance information including the information is provided.

  According to a third aspect of the present invention, there is provided a route guidance method executed by the navigation device, and an image showing guidance information of the guidance point when the mobile body approaches the guidance point included in the set guidance route. A guide step for outputting the information, wherein the guide step is performed when the guide route is set to pass through an exit of an expressway installed in a specific facility on the expressway. When the mobile body approaches a branch guide point from the expressway to the specific facility where the exit is installed, an image indicating the type of the exit is output.

  According to a fourth aspect of the present invention, there is provided a route guidance method executed by a navigation device, wherein a guidance route is set so as to pass through a smart interchange that is an exit of an expressway installed in a service area or a parking area of an expressway. In the case where it is set, when the moving body traveling on the expressway reaches a point a predetermined distance before the branch point from the expressway to the service area or parking area where the smart interchange is installed, It has the guidance process which outputs the guidance information containing the image which shows the said smart interchange.

  According to a fifth aspect of the present invention, there is provided a route guidance program executed by a navigation device including a computer, and when a moving body approaches a guidance point included in a set guidance route, guidance information on the guidance point is provided. In the case where the guide route is set so as to pass through an exit of an expressway installed in a specific facility on the expressway, the computer functions as a guide means for outputting an image indicating When a moving body traveling on an expressway approaches a branch guide point from the expressway to a specific facility where the exit is installed, an image indicating the type of the exit is output.

  The invention according to claim 6 is a route guidance program executed by a navigation device including a computer so as to pass through a smart interchange that is an exit of an expressway installed in a service area or a parking area of an expressway. When a guidance route is set, the mobile object traveling on the expressway has reached a point a predetermined distance before the branch point from the expressway to the service area or parking area where the smart interchange is installed. In some cases, the computer is caused to function as guidance means for outputting guidance information including an image showing the smart interchange.

It is a block diagram which shows schematic structure of the navigation apparatus which concerns on an Example. It is a functional block diagram which shows the structure relevant to a route guidance process. An example of the output of guidance information is shown. It is a flowchart of a route guidance process. It is a flowchart of the guidance process in SA.

10 Independent positioning device 18 GPS receiver 20 System controller 22 CPU
36 Data storage unit 50 Audio output unit 60 Input device 100 Navigation device 101 Storage unit 102 Guide unit 103 Designation unit 104 Input unit

  In one aspect of the present invention, a navigation device includes storage means for storing map data including road data, facility data, and entrance / exit data of expressways, and guide points included in a guide route set based on the map data. Guidance means for guiding the guidance point when the mobile body approaches the guidance route, and the guidance means sets the guidance route so as to pass through the entrance / exit of the expressway installed at a specific facility on the expressway. In this case, when the moving body approaches the guidance point immediately before the entrance / exit, the guidance information of the entrance / exit is added to the guidance information of the guidance point and output.

  When a highway entrance such as a smart IC is installed in a specific highway facility such as SA or PA, there is a place where a moving body such as a parking lot can move freely in the specific facility. It is difficult to properly guide the doorway. Therefore, the entrance / exit of the smart IC or the like is not targeted for guidance, but the guidance of the entrance / exit is performed together with the guidance of the guidance point at the guidance point immediately before the entrance / exit where guidance is easy. Guidance information is provided by displaying a guidance image or outputting a voice message. As a result, the user can know in advance the existence of an entrance / exit such as a smart IC, and can smoothly travel without being confused. The time when the moving body approaches the guidance point is when the moving body reaches a point a predetermined distance before the guidance point.

  In another aspect of the above navigation device, the guide means travels on the expressway when the guide route is set to pass through an exit of the expressway installed in a specific facility on the expressway. When the moving body in the vehicle approaches a branch guidance point from the expressway just before the exit to the specific facility, the guidance information of the exit is added to the guidance information of the branch guidance point and output. Thereby, the user can know the existence of the exit of the expressway installed in the specific facility while traveling on the expressway, and can smoothly travel without being confused.

  In another aspect of the above navigation device, the navigation device further includes designation means for designating a stop-off place, and when the stop means is designated between the exit and the branch guide point, When the moving body approaches the branch guidance point, the guide information of the branch guidance point is output without adding the guidance information of the exit, and the mobile body passes the branch guidance point and approaches the stop. Occasionally, the information on the exit of the expressway is added to the information on the stop and output. In other words, the guide point includes a stopover.

  In another aspect of the above navigation device, the guidance means outputs the guidance information for the exit when the device is activated when the moving body is located in the specific facility. Thereby, the user can know that there is an exit nearby when the navigation device is activated in the specific facility.

  In another aspect of the above navigation apparatus, an input means for a user to input a request for guidance, and a request guidance means for outputting guidance information of the latest guidance point when receiving the request, The request guide means outputs the exit guide information when the request is received when the mobile body is located in the specific facility. Thereby, for example, even when the user wants to check the guidance information of the exit in a specific facility where the user can freely travel, the user can check by inputting the request.

  In another aspect of the above navigation device, the guide means is traveling on a general road when the guidance route is set so as to pass through an entrance of an expressway installed in a specific facility on the expressway. When the moving body approaches the branch guidance point from the general road just before the entrance to the connecting road connected to the entrance, the guidance information of the entrance is added to the guidance information of the branch guidance point and output. To do. As a result, the user can know the existence of the entrance of the expressway installed in the specific facility before entering the connecting road to the expressway while driving on a general road, and can run smoothly without confusion. It becomes.

  In another aspect of the above navigation device, the navigation device further includes a designation unit that designates a stoppage, and when the stop is designated between the entrance and the branch guide point, When the moving body approaches the branch guidance point, the guidance information on the branch guidance point is output without adding the guidance information on the entrance, and the mobile body passes the branch guidance point and approaches the stop. Sometimes the guidance information of the expressway entrance is added to the guidance information of the stop and output.

  In another aspect of the above navigation device, the entrance / exit of the expressway set in the specific facility on the expressway is a smart interchange.

  In another aspect of the navigation device, the specific facility on the expressway is a service area or a parking area.

  In another aspect of the present invention, a route guidance method executed in a navigation device including storage means for storing map data including road data, facility data, and highway entrance / exit data is set based on the map data. When a moving body approaches a guide point on a guidance route, the guide step is provided for guiding the guide point, and in the guide step, the vehicle passes through an expressway entrance installed in a specific facility on the expressway. When the guide route is set, when the moving body approaches the guidance point immediately before the entrance / exit, the guidance information of the entrance / exit is added to the guidance information of the guidance point and output.

  In another aspect of the present invention, a route guidance program executed by a navigation device including storage means and a computer for storing map data including road data, facility data, and expressway entrance / exit data is set based on the map data. When a moving body approaches a guide point on the guided route, the computer functions as guide means for guiding the guide point, and the guide means is an entrance / exit of an expressway installed at a specific facility on the expressway In the case where the guidance route is set so as to pass through, when the moving body approaches the guidance point immediately before the entrance, the guidance information of the entrance is added to the guidance information of the guidance point and output. To do.

  According to the route guidance method and the route guidance program described above, it is possible to guide that there is a highway entrance first installed in a specific facility on the highway without confusing the user. Note that the route guidance program can be suitably handled in a state of being recorded on a recording medium.

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

[Navigation device]
FIG. 1 shows a configuration of the navigation device 100. In addition, the navigation apparatus 100 shall be mounted in the vehicle as a moving body. As shown in FIG. 1, the navigation device 100 includes a self-supporting positioning device 10, a GPS receiver 18, a system controller 20, a disk drive 31, a data storage unit 36, an interface 37, a communication device 38, a display unit 40, and a voice output unit 50. And an input device 60.

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

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

  The system controller 20 includes an interface 21, a CPU (Central Processing Unit) 22, a ROM (Read Only Memory) 23, and a RAM (Random Access Memory) 24, and controls the entire navigation apparatus 100.

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

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

  The disk drive 31 reads and outputs content data such as music data and video data from a disk 33 such as a CD or DVD under the control of the system controller 20. The disk drive 31 may be either a CD-ROM drive or a DVD-ROM drive, or may be a CD and DVD compatible drive. The data storage unit 36 is configured by, for example, an HDD and stores various data used for navigation processing such as map data. The communication device 38 includes, for example, an FM tuner, a beacon receiver, a mobile phone, a dedicated communication card, and the like, and acquires information distributed from a VICS (Vehicle Information Communication System, registered trademark) center or the like.

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

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

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

[Function configuration]
Next, the functional configuration of the navigation device 100 will be described. FIG. 2 shows a functional configuration related to the route guidance processing according to the present invention in the navigation device 100.

  As illustrated, the navigation device 100 includes a storage unit 101, a guide unit 102, a designation unit 103, and an input unit 104.

  The storage unit 101 stores map data including road data, facility data, and highway entrance / exit data.

  The guide unit 102 guides the guide point when the mobile body approaches the guide point included in the guidance route set based on the map data. When the guide point is a guide point immediately before the entrance / exit of an expressway installed at a specific facility on the expressway, the guide unit 102 provides the guide information of the entrance / exit based on the entrance / exit data of the expressway. Append to information and output. As a result, the user can know in advance the existence of the entrance / exit of the expressway, and can smoothly travel without being confused.

  The designation unit 103 designates a stop-by place based on input from the user.

  A user inputs a request to the input unit 104. The input unit 104 sends the input request to the guide unit 102. When receiving the request, the guide unit 102 outputs the guide information of the latest guide point. When the guide unit 102 receives a request when the mobile body is located in a specific facility having a highway entrance, the guide unit 102 outputs exit guide information. Thereby, the user can confirm by inputting a request also when he / she wants to confirm the guidance information of the exit in a specific facility where he can travel freely.

  The data storage unit 36 in FIG. 1 functions as the storage unit 101, the system controller 20 including the CPU 22 functions as the guide unit 102 and the designation unit 103, and the input device 60 functions as the input unit 104.

  The “specific facility on the expressway” refers to a facility that is installed on the expressway and has a place where a moving body such as a parking lot can freely travel. Typical examples are SA, PA, and the like. It is. A typical example of “a highway entrance / exit installed at a specific facility on a highway” is a smart IC. Further, “the moving body approaches the guidance point” means that the moving body reaches a point a predetermined distance before the guidance point. In the following description, the SA is used as a specific facility on a highway, and a smart IC is used as “an entrance / exit of a highway installed in a specific facility on a highway”.

[Route guidance]
Next, route guidance by the navigation device 100 will be described. FIG. 3 is an example of the output of guidance information when there is a smart IC attached to the SA on the guidance route. SA205 exists for the expressway 210, and SA205 has a road 209 on the map data. Further, the entrance / exit of the SA 205 with respect to the general road 211 is a smart IC 204. The guide route 206 is a route that travels along the general road 211, travels from the general road 211 to the connecting road 212 that connects to the smart IC 204, passes through the smart IC 204, and enters the SA 205. The guide route 207 is a route that travels on the expressway 210, enters the SA 205 from the expressway 201, passes the smart IC 204, travels on the connecting road 212, and exits to the general road 211.

  First, output of guidance information when a guidance route including the guidance route 206 is set will be described. As shown in the figure, the guidance point immediately before the smart IC 204 on the guidance route 206 is a branch guidance point 201 from the general road 211 to the connecting road 212. The guide unit 102 outputs guide information when the vehicle reaches a point a predetermined distance before the branch guide point 201. The guidance information is a voice message that informs the name of the intersection, the direction of travel, and the like. Here, in the present embodiment, it is assumed that the predetermined distance on the general road is set to 1 km, 300 m, and 30 m. Therefore, when the vehicle arrives at a point 1 km before the branch guide point 201, the guide unit 102 sends a voice message of the guide information at the branch guide point 201, “approx. 1 km ahead, XX intersection, diagonally left direction, entrance”. 301 is output. The XX intersection is the intersection name of the branch guidance point 201.

  Next, when the vehicle reaches a point 300 m before the branch guide point 201, the guide unit 102 reads “About 300 m ahead, XX intersection, diagonal left direction, entrance. A voice message 302 in which the guidance information of the smart IC 204 is added to the guidance information of the point 201 is output. Furthermore, when the vehicle arrives at a point 30 m before the branch guide point 201, the guide unit 102 reads “Soon, XX intersection, diagonally left direction, entrance. A voice message 303 in which the guidance information of the smart IC 204 is added to the guidance information is output.

  Here, when a stop is designated by the designation unit 103 between the branch guide point 201 and the smart IC 204 in the guidance route 206, this stop point becomes the guide point immediately before the smart IC 204. Therefore, the guide unit 102 does not add the guide information of the smart IC 204 to the guide information that is output when the vehicle reaches a point a predetermined distance before the branch guide point 201. That is, when the vehicle reaches a point 1 km before the branch guide point 201, the guide unit 102 “approx. 1 km ahead, XX intersection, diagonally left direction, entrance”, when the vehicle reaches a point 300 m before “ About 300m ahead, XX intersection, diagonally left direction, entrance "When you reach the point 30m before, you will output the voice message" Soon, XX intersection, diagonally left direction, entrance. " When the vehicle passes through the branch guide point 201 and arrives at the stopover location, the smart IC 204 guide information is added to the stop location guide information “Arrive at the stopover location. Output a voice message.

  The guide unit 102 may set the smart IC 204 as the guide point 202 and output a voice message of the smart IC 204 guide information “Smart IC” when the vehicle reaches the guide point 202. . Note that the current position of the vehicle may not match the guidance route 206 due to the data accuracy of the connecting road 212, and so only when the current position of the vehicle matches the guidance route 206 and reaches the guide point 202. You may make it output the guidance information of smart IC204.

  Next, output of guidance information when a guidance route including the guidance route 207 is set will be described. As shown in the drawing, the guidance point immediately before the smart IC 204 on the guidance route 207 is a branch guidance point 203 from the highway 201 to the SA 205. The guide unit 102 outputs guide information when the vehicle reaches a point a predetermined distance before the branch guide point 203. In this embodiment, the predetermined distance on the highway is set to 2 km, 1 km, and 100 m.

  First, when the vehicle arrives at a point 2 km before the branch guide point 203, the guide unit 102 sends a voice message 401 of the guidance information at the branch guide point 203, "About 2 km ahead, YY-SA, diagonally left." Is output. YY-SA is the name of SA205. Next, when the vehicle arrives at a point 1 km before the branch guide point 203, the guide unit 102 sends a voice message of the guidance information at the branch guide point 203, "About 1 km ahead, YY-SA, diagonally left." 402 is output. Furthermore, when the vehicle arrives at a point 100 m before the branch guide point 203, the guide unit 102 reads, “Soon, it will be diagonally to the left. It is a smart IC. Go ahead according to the actual guide signs.” A voice message 403 in which the guidance information of the smart IC 204 is added to the guidance information of the guidance point 203 is output.

Here, when a stop is designated by the designating unit 103 between the branch guide point 203 and the smart IC 204 in the guidance route 207, this stop is a guide point immediately before the smart IC 204. Therefore, the guide unit 102 does not add the guide information of the smart IC 204 to the guide information that is output when the vehicle reaches a point a predetermined distance before the branch guide point 203. That is, when the vehicle reaches a point 2 km before the branch guide point 203, the guide unit 102 “approx. 2 km ahead, YY-SA, diagonally left.” When the vehicle reaches a point 1 km ahead, 1km ahead, YY-SA, diagonally left. "When a point 100m ahead is reached, the voice message" Soon, diagonally left "is output. When the vehicle passes through the branch guide point 203 and reaches the stoppage, the stoppage guide information is “Arrive at the stopover. Smart IC. Go ahead according to the actual information sign.” A voice message with the guidance information of the smart IC 204 added thereto is output.

  The guide unit 102 may set the smart IC 204 as the guide point 202 and output a voice message of the smart IC 204 guide information “Smart IC” when the vehicle reaches the guide point 202. . Note that if there is a place in the SA 205 where a vehicle such as a parking lot can freely travel, the current position of the vehicle may not match the guidance route 207, so the current position of the vehicle matches the guidance route 207. The guidance information of the smart IC 204 may be output only when the guidance point 202 is reached in a state where the user is present.

  Furthermore, the guide unit 102 calculates the distance to the next guide point 201 when the vehicle passes the smart IC 204 in a state where the current position of the vehicle matches the guidance route. For example, when the distance to the guide point 201 is 700 m, the guide unit 102 outputs a voice message 404 “About 700 m ahead, left direction” as shown in the figure. When the vehicle reaches a point 300 m before the guide point 201 in accordance with the predetermined distance on the set general road, the voice message 405 “To the left, about 300 m ahead” is displayed. , And when the vehicle reaches a point 30 m before the guide point 201, a voice message 406 "Soon, it is in the left direction" is output.

  In this way, by guiding the presence of the smart IC 204 in advance at the guidance point immediately before the smart IC 204, the user can know the presence of the smart IC 204 in advance and can smoothly run without confusion. It becomes.

  Next, output of guidance information of the smart IC 204 within the SA 205 will be described. In the map data, a road 209 is provided in the SA 205. Here, when the intermediate point of the road 209 is set as the representative point 213 of SA205 and the current position of the vehicle is within 1 km from the representative point 213 of SA205, the guide unit 102 indicates that the vehicle is located in SA205. It is determined that In this embodiment, when the current position of the vehicle is within the range of 1 km, it is determined that the vehicle is located within the SA 205. However, the present invention is not limited to 1 km and is set to an arbitrary distance. be able to. When the navigation device 100 is activated and the guidance unit 102 determines that a guidance route including the guidance route 207 is set and the vehicle is located in the SA 205, the guidance unit 102 outputs guidance information of the smart IC 204. For example, when the user who drives the vehicle enters the SA 205 according to the guidance route including the guidance route 207, the user parks the vehicle at the point 208, turns off the power of the navigation device 100, and then starts the navigation device 100. The guide unit 102 determines that the vehicle is located in the SA 205 because the current position of the vehicle is within a range of 1 km from the representative point 213 of the SA 205, and as shown in the figure, “Smart IC. Please proceed according to the following. "Voice message 407 is output. As described above, when a guidance route passing through the smart IC as an exit is set, when the navigation device 100 is activated in the SA having the smart IC, the guide unit 102 guides the smart IC as a guide point. Output information.

[Route guidance processing]
Next, route guidance processing will be described. FIG. 4 is a flowchart of route guidance processing. This process is executed mainly by the CPU 22 shown in FIG. 1 executing a program prepared in advance.

  First, the guide unit 102 receives designation of a destination by the user (step S1). Then, the guide unit 102 searches for a route from the current location of the vehicle to the set destination and determines a guidance route (step S2). Next, the guide unit 102 acquires information on a guide point next to the current position of the vehicle among a plurality of guide points existing on the guidance route (step S3), and the guide point is the guide immediately before the smart IC. It is determined whether it is a point (step S4).

  When the next guide point is not the guide point immediately before the smart IC (step S4; No), the guide unit 102 acquires the guide information of the guide point from the map data in the storage unit 101 (step S5). Next, the guide unit 102 determines whether or not the vehicle has reached a point a predetermined distance before the guide point (step S6). If the vehicle has not reached the point a predetermined distance before the guide point (step S6; No), step S6 is repeated. When the vehicle reaches a point a predetermined distance before the guidance point (step S6; Yes), the guide unit 102 outputs the guidance information of the guidance point from the voice output unit 50 (step S7). And the guide part 102 performs step S12.

  On the other hand, when the next guide point is the guide point immediately before the smart IC (step S4; Yes), the guide unit 102 obtains the guide information of the guide point and the smart IC guide information from the map data in the storage unit 101. Obtain (step S8). The guide unit 102 determines whether or not the vehicle has reached a point a predetermined distance before the guide point (step S9). When the vehicle has not reached the point a predetermined distance before the guide point (step S9; No), step S9 is repeated. When the vehicle reaches a point a predetermined distance before the guide point (step S9; Yes), the guide unit 102 adds the smart IC guide information to the guide point guide information and outputs it from the voice output unit 50. (Step S10).

  And the guidance part 102 performs the guidance process in SA (step S11), and determines whether the vehicle arrived at the destination (step S12). If the vehicle has not reached the destination (step S12; No), the process returns to step S3, and steps S3 to S11 are repeated for the next guidance point on the guidance route. When the vehicle has reached the destination (step S12; Yes), the route guidance process is terminated.

[In-SA guidance processing]
Next, the SA guidance process will be described. FIG. 5 is a flowchart of the intra-SA guidance process. This process is executed mainly by the CPU 22 shown in FIG. 1 executing a program prepared in advance.

  First, the guide unit 102 determines whether the smart IC is set as an exit (step S21). If the smart IC is not set as the exit (step S21; No), the SA guide process is terminated. When the smart IC is set as the exit (step S21; Yes), the guide unit 102 determines whether or not the vehicle is located in the SA (step S22). If it is not located within the SA (step S22; No), the SA guide process is terminated. When the vehicle is located within the SA (step S22; Yes), it is determined whether or not the navigation device is turned on (step S23). If the navigation device is turned on (step S23; Yes), the guide unit 102 executes step S26. When the navigation device is not turned on (step S23; No), it is determined whether the navigation device is activated by the user starting the vehicle engine or turning on the navigation device (step S24). . When the navigation device is not activated (step S24; No), step S24 is repeated, and when the navigation device is activated (step S24; Yes), the guide unit 102 outputs the smart IC guidance information from the voice output unit 50. (Step S25).

  Next, the guide unit 102 determines whether a request input by the user to the input unit 104 has been received (step S26). When the request is not received (step S26; No), the guide unit 102 executes step S22. When the request is received (step S26; Yes), the guide unit 102 outputs the smart IC guide information from the voice output unit 50 (step S27), and executes step S22.

  As described above, according to the navigation device of the present embodiment, when a smart IC exists on the guidance route, guidance information related to the smart IC is also provided at the guidance point immediately before the smart IC. In this way, the user can be informed that the smart IC is first. Thereby, the user can know the presence of the smart IC in advance, and can smoothly run without being confused. Further, the user can confirm the smart IC guide information by inputting a request even after passing the guide point immediately before the smart IC.

[Modification]
In the example of the guidance information output shown in FIG. 3 in the above embodiment, the guidance information of the guidance point is output three times before reaching the guidance point. The number of times may be output. In the example of the guidance information output shown in FIG. 3 in the above embodiment, the smart IC guidance information is added to the last two times on general roads and the last one time on highways. However, the application of the present invention is not limited to this, and when the guide point is the guide point immediately before the smart IC, the smart IC guide information is added to at least the last output of the guide information of the guide point. And then output.

  In the above embodiment, the guidance information is provided by outputting a voice message, but the application of the present invention is not limited to this. Guidance information may be provided by displaying a guidance image, or both guidance image display and voice message output may be employed.

  INDUSTRIAL APPLICABILITY The present invention can be used for a mobile navigation device represented by a car navigation device.

Claims (7)

When a moving body approaches a guide point included in the set guide route, the mobile device includes a guide unit that outputs an image indicating guide information of the guide point.
In the case where the guide route is set so as to pass through an exit of an expressway installed at a specific facility on the expressway, the guide means allows the moving body traveling on the expressway to exit from the expressway. A navigation device that outputs an image indicating the type of the exit when approaching a branch guide point to a specific facility where is installed.   When a guidance route is set so as to pass through a smart interchange that is an exit of an expressway installed in a service area or a parking area of an expressway, a moving object traveling on the expressway is A guide means is provided for outputting guidance information including an image indicating the smart interchange when a point a predetermined distance before the branch point to the service area or parking area where the smart interchange is installed is reached. Navigation device. A route guidance method executed by a navigation device,
When a moving body approaches a guide point included in the set guide route, the guide step of outputting an image indicating guide information of the guide point,
In the guidance step, when the guidance route is set so as to pass through an exit of an expressway installed at a specific facility on the expressway, a moving body traveling on the expressway exits the exit from the expressway. A route guidance method that outputs an image indicating the type of the exit when approaching a branch guidance point to a specific facility where is installed. A route guidance method executed by a navigation device,
When a guidance route is set so as to pass through a smart interchange that is an exit of an expressway installed in a service area or a parking area of an expressway, a moving object traveling on the expressway is And a guidance step of outputting guidance information including an image indicating the smart interchange when reaching a point a predetermined distance before a branch point to the service area or parking area where the smart interchange is installed. Route guidance method. A route guidance program executed by a navigation device comprising a computer,
When the moving body approaches a guide point included in the set guide route, the computer is caused to function as a guide unit that outputs an image indicating guide information of the guide point,
In the case where the guide route is set so as to pass through an exit of an expressway installed at a specific facility on the expressway, the guide means allows the moving body traveling on the expressway to exit from the expressway. A route guidance program that outputs an image indicating the type of the exit when approaching a branch guidance point to a specific facility where is installed. A route guidance program executed by a navigation device comprising a computer,
When a guidance route is set so as to pass through a smart interchange that is an exit of an expressway installed in a service area or a parking area of an expressway, a moving object traveling on the expressway is Causing the computer to function as guidance means for outputting guidance information including an image indicating the smart interchange when a point a predetermined distance before the branch point to the service area or parking area where the smart interchange is installed is reached. A route guidance program characterized by   7. A recording medium on which the route guidance program according to claim 5 is recorded.

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