JP2008058235A - Route guidance device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a route guidance device which completes a destination guidance in a manner where the intent of a user is reflected appropriately. <P>SOLUTION: The route guidance device 100 comprises: a one's-own-vehicle position detection section 102 that is connected with an input device 130 allowing the user to input the information and detects the position of the own vehicle; and a route guidance section 104 for guiding the route to a destination set via an inputting means (hereinafter referred to as "the set destination"). The route guidance section 104 has: first guidance mode where the route guidance is continued until the own-vehicle position reaches a predetermined first distance L1 from the set destination; and second guidance mode where the route guidance is continued until the own-vehicle position reaches a second distance L2 longer than the first distance from the set destination. The route guidance section 104 comprises a mode switch section 112 for changing the guidance mode of the route guidance section 104 in response to a change command input via the input device 130. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a route guidance device that provides route guidance to a set destination.

  Conventionally, an in-vehicle navigation device that displays a vehicle position on map data and provides route guidance to a destination, a position detection unit that detects the vehicle position, and an input unit that receives an input of the destination Route selection means for selecting a travel route to the accepted destination, guidance means for route guidance of the host vehicle based on the selected route, and determination means for determining arrival at the destination. The determination means specifies a reference value corresponding to the received destination type from among reference values for determining arrival at a predetermined destination for each destination type, and the vehicle position A navigation device is known that determines that the destination has arrived when the distance between the destination and the destination falls within the specified reference value (for example, Patent Document 1). reference).

A current position detecting means for detecting a current position of the vehicle; an input means for inputting a destination;
A navigation apparatus comprising: route search means for searching for a route to the destination input by the input means; and control means for guiding the destination along the route searched for by the route search means. Determining means for determining whether or not the place is in a vehicle entry prohibited area; and when the determination means determines that the destination is in a vehicle entry prohibited area, the control means expands the destination arrival determination area. A navigation device is known that terminates guidance when it is detected by the current position detection means that it has arrived in the area (see, for example, Patent Document 2).
JP 2005-30864 A JP 2005-241561 A

  By the way, in general, the above-described type of route guidance apparatus, for example, when the vehicle position is within a predetermined distance (hereinafter referred to as “destination determination distance”) with respect to a set destination, The route guidance is usually terminated with the message “Arrived at”. In this case, if the destination determination distance is shortened, the vehicle position is not reached due to the accuracy of the detection of the vehicle position or the location information of the destination, even though the vehicle actually arrives at the destination. There is a problem that the route guidance is continued indefinitely without being within the destination determination distance with respect to the set destination. For this reason, conventionally, the destination determination distance is set to a relatively long distance (for example, 100 m), and the problem that the route guidance is continued indefinitely has been avoided.

  However, if the destination determination distance is increased, on the other hand, when the user wants to guide to the destination accurately (when pinpoint guidance is desired), the destination determination is made contrary to the user's intention. The problem arises that the route guidance is terminated even if it has not arrived. In this case, the user must reach the destination by himself / herself, which is inconvenient.

  In this regard, in the invention described in the above-mentioned patent document, the destination determination distance (destination arrival determination area) is changed when a certain condition is satisfied or according to the type of the set destination or the type of road. However, there is a problem that the user's intention is not appropriately reflected depending on the variable mode.

  Therefore, an object of the present invention is to provide a route guidance device capable of terminating destination guidance in a manner in which the user's intention is appropriately reflected.

In order to achieve the above object, the first invention is connected to input means capable of inputting information by a user, and is set by means of own vehicle position detecting means for detecting the position of the own vehicle, and the input means. In a route guidance device comprising route guidance means for performing route guidance to the ground (hereinafter referred to as “set destination”),
A first guidance mode in which the route guidance means continues route guidance until the vehicle position is within a predetermined first distance with respect to the set destination; and A second guidance mode for continuing the route guidance until it is within a second distance longer than the distance,
A mode switching unit that switches a guidance mode of the route guidance unit according to a switching command input via the input unit is provided.

The second invention is connected to an input means capable of inputting information by the user, and detects the position of the own vehicle, and a destination set via the input means (hereinafter referred to as “setting purpose”). A route guidance device comprising route guidance means for performing route guidance to the ground)),
A first guidance mode in which the route guidance means continues route guidance until the vehicle position is within a predetermined first distance with respect to the set destination; and A second guidance mode for continuing route guidance until reaching a second distance longer than the distance,
Storage means for storing data representing the positional relationship between the set destination and the actual destination;
A mode switching means for switching a guidance mode of the route guidance means based on data stored in the storage means,
3rd invention is the route guidance apparatus which concerns on 2nd invention,
When the vehicle position is within a predetermined distance longer than the first distance with respect to the set destination during guidance in the first guidance mode, and an off operation of the ACC off switch is detected, or the vehicle When the vehicle is stopped in a state where the driving source is turned on and it is detected for a predetermined time or longer, it includes a guidance forcible ending means for ending the route guidance of the route guidance means.

  ADVANTAGE OF THE INVENTION According to this invention, the route guidance apparatus which can complete | finish destination guidance in the aspect in which the user's intention was reflected is obtained.

  The best mode for carrying out the present invention will be described below with reference to the drawings.

  FIG. 1 is a system configuration diagram showing an example of a main configuration of a route guidance apparatus 100 according to the present invention. The route guidance device 100 may be embodied as a navigation device. The route guidance apparatus 100 has a hardware configuration centered on a microcomputer including a CPU, a ROM, a RAM, and the like connected to each other via a bus (not shown).

  An input device 130, a display 140, a voice output device 150, and various sensors 160 are connected to the route guidance device 100. The connection mode may be a wireless connection or a wired connection.

The input device 130 constitutes a user interface for the user to input various information to the route guidance device 100. The input device 130 may be a remote controller or a touch switch of the display 140, for example. The input device 130 is wireless or wired. The display 140 is a liquid crystal display, for example, and is installed at an appropriate position (for example, an instrument panel) in the vehicle interior.

  Various sensors 160 include various sensors for detecting the state of the vehicle, and include, for example, a vehicle speed sensor, a shift position sensor, and the like.

  As shown in FIG. 1, the route guidance device 100 includes a host vehicle position detection unit 102, a route guidance unit 104, a map database 108, a user characteristic database 110, a mode switching unit 112, and a guidance forced termination unit 114.

  The map database 108 stores map data. In the map data, as usual, coordinate information of nodes corresponding to road junctions (intersections), coordinate information of nodes corresponding to junctions / branches of expressways, and adjacent nodes are connected. It includes link information, road width information corresponding to each link, road types such as national roads, prefectural roads, and highways corresponding to each link, and various road information such as traffic restriction information for each link. In addition, road information includes speed limit for each link, temporary stop line, parking prohibited area, presence of traffic lights, presence / absence of crossings, overtaking prohibited section, one-way street, school zone, U-turn prohibition, accident frequent occurrence information, etc. It's okay. Further, the map database 108 may store POI (Point Of Interest) information including facility information relating to sightseeing spots and various facilities.

  A GPS antenna is connected to the vehicle position detection unit 102. The own vehicle position is measured and calculated based on a GPS signal output from a GPS satellite via a GPS antenna by a GPS receiver. The positioning method may be any method such as single positioning or relative positioning (including interference positioning). At this time, the vehicle position may be corrected based on outputs from various sensors such as a vehicle speed sensor and a gyro sensor, and various information received via the beacon receiver and the FM multiplex receiver. For example, in D-GPS (Differential GPS), which is one of relative positioning, the vehicle position is determined by calculating the distance from four or more GPS satellites, and then received at a known point. Is corrected based on the GPS correction data supplied from the machine (reference station) (so-called differential correction: GPS signal received at two points includes the same error, positioning is performed by subtracting the error. To improve accuracy.) The GPS correction data is broadcast by FM multiplexing periodically (for example, every 5 seconds) from a plurality of reference stations installed throughout the country and received by the FM multiplex receiver of the vehicle. The own vehicle position may be appropriately corrected using the map data in the map database 108 irregularly by a known map matching technique. For example, the trajectory of the own vehicle position (running trajectory) is compared with the road shape of the map data, and the vehicle position is corrected so as to come to a point on the road accordingly. The vehicle position derived in this way is mainly supplied to the route guide unit 104 for each calculation cycle.

  The route guide unit 104 sets a destination intended by the user based on various information input via the input device 130. For example, the destination may be set based on facility information included in the map database 108. In this case, the user operates a menu screen displayed on the display 140 and designates a desired facility as a destination. In this case, the location of the destination is grasped based on the registered data such as the address of the designated facility based on the map data in the map database 108. Alternatively, the destination may be set by designating a desired position on the map displayed on the display 140 with a cursor. In this case, the position of the destination is grasped from the coordinates of the position designated by the cursor based on the map data in the map database 108. Alternatively, the destination may be set by recognizing the destination spoken by the user. Hereinafter, the destination set by the user in this way is also referred to as “set destination” in order to distinguish it from the user's actual destination. This is because, as described later, the set destination may or may not match the actual destination.

  The route guidance unit 104 searches and determines a guidance route from the current vehicle position to the set destination. The guidance route from the current vehicle position to the set destination may be searched and determined in consideration of the type of road to be used, traffic jam information, the shortest distance or the shortest time. For example, when the user operates the confirm button via the input device 130 and the guide route is confirmed by the user, the route guide unit 104 will subsequently guide the vehicle position and guidance supplied from the vehicle position detection unit 102. Route guidance is performed based on the relationship with the route. For example, the route guidance unit 104 superimposes and displays the guidance route on the map display on the display 140. When the vehicle position approaches the right turn point of the guidance route, the route output unit 150 is provided in the passenger compartment. Then, an audio message “Please turn right at 100m ahead” may be output, and an enlarged view of the intersection including a highlight indicating to turn right may be displayed via the display 140 provided in the passenger compartment. Further, the route guide unit 104 has a so-called reroute function. That is, when the vehicle position deviates from the guidance route, the route guidance unit 104 re-searches the guidance route from the current vehicle position to the set destination, and a new guidance route obtained by the re-search. Follow the route guidance.

  The route guidance unit 104 performs route guidance continuously until a predetermined route guidance end condition is satisfied. The predetermined route guidance end condition is typically when it is determined that the vehicle has arrived at the set destination. The predetermined route guidance end condition may include a case where the user's intention to stop is clearly indicated, for example, when the user inputs an end command via the input device 130. Also in this case, it is no longer meaningful to perform route guidance.

  The route guidance unit 104 includes a guidance mode (hereinafter referred to as “pinpoint guidance mode”) for continuing route guidance until the vehicle position reaches the set first destination within a predetermined first distance L1, and the vehicle position. Is provided with a guidance mode (hereinafter referred to as “normal guidance mode”) in which the route guidance is continued until the distance is within the second distance L2 longer than the first distance with respect to the set destination. The first distance L1 and the second distance L2 are appropriately set in consideration of the vehicle position detection accuracy of the vehicle position detection unit 102 and the accuracy of map data in the map database 108. For example, the first distance L1 may be 10 [m], and the second distance L2 may be 100 [m].

  In the normal guidance mode, the route guidance unit 104 determines that the vehicle has arrived at the set destination when the vehicle position reaches a predetermined second distance L2 with respect to the set destination. The route guidance will be terminated with the message “The route guidance will be terminated because it has arrived at”.

  In the pinpoint guidance mode, the route guidance unit 104 determines that the vehicle has arrived at the set destination when the vehicle position reaches a predetermined first distance L1 with respect to the set destination. The route guidance will be terminated with the message “The route guidance will be terminated because it has arrived at”. In the pinpoint guidance mode, the user can enjoy the advantage of being surely guided to the vicinity of the set destination.

  The mode switching unit 112 appropriately switches the guidance mode of the route guidance unit 104. This operation will be described in detail later.

  The user characteristic database 110 stores data related to user characteristics. The accumulated data will be described later in connection with the operation of the mode switching unit 112. In addition, when the vehicle carrying the route guidance apparatus 100 according to the present embodiment is used by a plurality of users, data is managed for each user in the user characteristic database 110. In this case, the identification of the user may be realized based on, for example, a personal identification result by an in-vehicle camera, ID collation, or biometric information collation. Data in the user characteristic database 110 is accumulated every time a destination is set and a vehicle is routed to the set destination (for each trip).

Next, an operation example of the mode switching unit 112 will be described by dividing it into several examples.
(Operation example 1)
FIG. 2 is a flowchart showing an operation example 1 of the mode switching unit 112. The processing routine shown in FIG. 2 may be an interrupt process that is activated when a guidance mode is selected during route guidance execution or at the time of destination setting. Note that the processing routine shown in FIG. 2 is executed during the execution of any of the pinpoint guide mode and the normal guide mode. The normal guidance mode may be selected as a default setting at the normal time.

  The mode switching unit 112 switches the guidance mode of the route guidance unit 104 to the selected guidance mode when the user selects a guidance mode (YES determination in step 10) (step 12). For example, when the user instructs the pinpoint guidance mode via the input device 130 during route guidance execution or at the time of destination setting, the mode switching unit 112 responds to the guidance of the route guidance unit 104 accordingly. Switch the mode to the pinpoint guidance mode.

According to this operation example, since the guidance mode is changed according to the user's selection, it is possible to realize route guidance suitable for the user's intention. Therefore, for example, when the user is not familiar with the geography around the destination and wants to guide the user to the set destination accurately, the route guidance device can be selected only by selecting the pinpoint guidance mode via the input device 130. 100 can guide the user to the set destination accurately. On the other hand, for example, if the user is familiar with the geography around the destination and thinks that it is sufficient to be guided to the vicinity of the destination, the route guidance by the route guidance device 100 can be terminated early, and the setting purpose It can be avoided that unnecessary route guidance is continued to the vicinity of the ground.
(Operation example 2)
FIG. 3 is a flowchart showing an operation example 2 of the mode switching unit 112. The processing routine shown in FIG. 3 may be an interrupt process that is started when the destination is set.

  The mode switching unit 112 switches the guidance mode of the route guidance unit 104 according to the destination setting mode at the time when the destination setting by the user is performed (YES determination at step 20) (step 22). . For example, when the destination is set by moving the cursor (cross mark) on the map display, the mode switching unit 112 realizes the normal guidance mode. For example, the user will select a rough destination setting mode that is relatively easy to set, such as when the user can go to the destination by himself / herself if he / she goes to the periphery. On the other hand, when a precise destination is set, such as when a destination is set by inputting an address, the mode switching unit 112 implements a pinpoint guidance mode.

  According to this operation example, paying attention to the fact that the user's intention appears in the destination setting mode, since the guidance mode is switched according to the destination setting mode, it is possible to realize route guidance suitable for the user's intention. .

  As a modification of the second operation example, the mode switching unit 112 implements the normal guidance mode when the accuracy of the map data itself around the set destination is low and the position information of the set destination is low. When the accuracy of the map data itself around the set destination is high and the position information of the set destination is high in accuracy, the pinpoint guidance mode may be realized. This is because when the pinpoint guidance mode is executed when the accuracy of the map data itself is low, the route guidance ends at a location that is not the actual destination, or the route guidance continues even if it arrives at the actual destination. This is because inconvenience is likely to occur. The accuracy of the map data may be stored in advance in the map database 108 in association with each area. Further, information regarding the accuracy of the position information may be stored in advance in the map database 108 in association with the position information of each facility.

As a modification of the second operation example, when the destination is set by moving the cursor on the map display, if the scale of the map display is relatively wide (for example, other than the most detailed view), as described above. While determining the rough destination setting, if the map display scale is a detailed view (for example, the most detailed view), it is determined that the precise destination has been set, and the pinpoint guidance mode is realized It is good to do. Thereby, in the destination setting by the cursor, in addition to the case where the destination is simply set roughly, it may be set precisely such as designating a building or a parking lot, and the driver's intention can be appropriately reflected. From the same point of view, if the scale of the map display is changed to a wide direction before moving the cursor on the map display and setting the destination, the judgment that the rough destination is set as described above On the other hand, when the scale of the map display is changed in a detailed direction, the pinpoint guidance mode may be realized.
(Operation example 3)
FIG. 4 is a flowchart showing an operation example 2 of the mode switching unit 112. The processing routine shown in FIG. 4 may be an interrupt process that is activated when the destination is set.

  When the destination setting is performed by the user (YES determination at step 20), the mode switching unit 112 reads the past average separation distance regarding the user from the user characteristic database 110 (step 32). Here, the average separation distance is an average value of the distance L between the actual destination and the set destination in each trip. As shown in FIG. 5, the user characteristic database 110 stores the average separation distance for each user. Note that only the separation distance may be accumulated in the user characteristic database 110. In this case, the average separation distance is calculated each time based on each read separation distance. The actual destination may be the position of the vehicle at the end of the trip, or the user's own intention when the user intends to cancel is indicated by inputting a termination command via the input device 130 or the like. It may be a car position.

  The mode switching unit 112 switches the guidance mode of the route guidance unit 104 according to the average separation distance of the user (step 34). For example, when the average user separation distance is 80 m, the mode switching unit 112 realizes the normal guidance mode. On the other hand, when the average separation distance of the user is 8 m, the mode switching unit 112 realizes the pinpoint guidance mode.

  According to this operation example, the user's intention appears in the positional relationship between the set destination and the actual destination, and the guidance mode is switched according to the destination setting mode. Route guidance can be realized.

  As a modified example of this operation example 3, during the route guidance, the frequency at which the intention of the user to be canceled (stop frequency) is clearly indicated by the user inputting an end command via the input device 130, etc. 110, and the guidance mode may be switched according to the cancellation frequency. For example, the mode switching unit 112 realizes a normal guidance mode for a user whose cancellation frequency is higher than a predetermined standard, and realizes a pinpoint guidance mode for a user whose cancellation frequency is lower than a predetermined standard. Also good. It can be estimated that users with a high frequency of cancellation prefer rough guidance to the vicinity of the set destination, that is, route guidance in the normal guidance mode, while users with a low frequency of cancellation are accurate to the vicinity of the set destination. This is because it can be presumed that the user prefers the route guidance in the pinpoint guidance mode.

  As a modification of the third operation example, the destination setting mode by the user may be stored in the user characteristic database 110, and the guidance mode may be switched according to the tendency of the destination setting mode. For example, the mode switching unit 112 realizes the normal guidance mode for users who tend to have rough destination setting modes, and for users who tend to have precise destination setting modes. The pinpoint guidance mode may be realized. This is because the user's preferred guidance mode can be estimated based on the past tendency of the destination setting mode (for example, a mode in which rough setting by the cursor or detailed setting is performed).

  As a modification of the third operation example, the reroute frequency around the set destination may be stored in the user characteristic database 110, and the guidance mode may be switched according to the reroute frequency. For example, the mode switching unit 112 realizes the normal guidance mode for users whose reroute frequency is higher than a predetermined reference, and realizes the pinpoint guidance mode for users whose reroute frequency is lower than a predetermined reference. It is good as well. This is because it can be estimated that a user with a high reroute frequency prefers rough guidance to the vicinity of the set destination, that is, a route guidance in the normal guidance mode, while a user with a low reroute frequency sets the purpose of setting according to the guide route. This is because it can be presumed that the user is guided accurately to the ground, that is, prefers route guidance in the pinpoint guidance mode.

  Further, as a modification of the third operation example, when a setting destination that is the same as or the same type as the current setting destination is set in the past, the past setting distance is considered and the setting destination for the current setting destination is considered. You may switch guidance mode. For example, the mode switching unit 112 realizes the normal guidance mode when the past separation distance is 50 m or more, for example, and selects the pinpoint guidance mode when the past separation distance is 10 m or less, for example. It may be realized. Note that the same type of destination includes destinations having the same attribute, for example, destinations of the same category such as gas stations, hospitals, and restaurants.

  Next, an operation example of the guidance forced end unit 114 will be described.

  FIG. 6 is a flowchart showing an example of the operation of the forced guidance end unit 114. The processing routine shown in FIG. 6 may be processing that is repeatedly executed during route guidance in the pinpoint guidance mode described above.

  During route guidance in the pinpoint guidance mode (YES in step 40), the guidance forced end unit 114 calculates the distance between the set destination and the vehicle position (step 42), and the calculated distance is equal to or less than the second distance L2. It is determined whether or not (step 44). If the calculated distance is less than or equal to the second distance L2, the process proceeds to step 46, and otherwise, the process returns to step 40. If the distance calculated in step 42 is less than or equal to the first distance L1, the route guidance in the pinpoint guidance mode is terminated, so the next processing in step 40 is NO and the process is terminated. .

  In step 46, the guidance forced end unit 114 continues for a predetermined time or more in a state where the accessory (ACC) switch is turned off or the engine (electric motor in the case of an electric vehicle) is operating. It is determined whether it is maintained. The stop state may be determined based on output signals from various sensors 160. For example, when the shift position is in parking (P) or neutral (N), or when the vehicle speed is zero, it may be determined that the vehicle is stopped. In step 46, if any of them is satisfied, the process proceeds to step 48, and if none is satisfied, the process returns to step 40.

  In step 48, the forced guidance end unit 114 forcibly ends the route guidance by the route guidance unit 104. At this time, for example, the route guidance unit 104 terminates the route guidance together with a message that “the route guidance will be terminated because it has arrived around the destination”.

  By the way, in the pinpoint guidance mode, it has the advantage of being guided to the destination pinpointly compared to the normal guidance mode, but on the other hand, due to the accuracy of the vehicle position detection accuracy, the location information of the destination, etc. Although the vehicle actually arrives at the destination, there is a problem that the route guidance is continued indefinitely because the vehicle position is not within the first distance L1 with respect to the set destination.

  On the other hand, according to the present embodiment, as described above, when the accessory (ACC) switch is turned off during the pinpoint guidance mode, or when the stopped state is maintained for a predetermined time or longer. Even if the vehicle position is not within the first distance L1 with respect to the set destination, the route guidance is terminated if the vehicle position is within the second distance L2 with respect to the set destination. Thereby, while maintaining the advantages of the pinpoint guidance mode, the inconvenience of the pinpoint guidance mode can be avoided and the route guidance adapted to the user's intention can be realized.

  In this operation example, it is determined whether or not the distance is within the second distance L2, which is the determination distance in the normal guidance mode, in step 44 above, but a reference distance different from the second distance L2 may be set. . In this case, the reference distance may be larger or smaller than the second distance L2 as long as it is larger than the first distance L1. In addition to the case where the accessory switch is turned off, and the like, when the vehicle door is opened, or when the ignition switch is turned off, the forced guidance end unit 114 performs route guidance by the route guidance unit 104. It may be forcibly terminated.

  Further, as a modification of this operation example, when the reroute frequency exceeds the predetermined number of times around the set destination, the guidance forcible end unit 114 forcibly ends the route guidance by the route guide unit 104. Also good. The fact that the frequency of reroutes around the set destination is increasing is that the route guidance is ignored, that is, the route guidance is not required, and the user knows the surrounding route. It is because it is considered.

  The preferred embodiments of the present invention have been described in detail above. However, the present invention is not limited to the above-described embodiments, and various modifications and substitutions can be made to the above-described embodiments without departing from the scope of the present invention. Can be added.

  For example, in the above-described embodiment, two guidance modes are realized, but two or more guidance modes may be prepared and these guidance modes may be switched in the same way as in the above-described embodiment.

[Appendix]
Here, the following additional notes are disclosed with respect to the above description.

  Supplementary Note (1) Own vehicle position detecting means for detecting the position of the own vehicle, input means capable of inputting information by the user, and a destination for setting the destination based on information input via the input means A route guidance device comprising: setting means; and route guidance means for continuing route guidance until the vehicle position is within a predetermined distance from the set destination.

  (2) When the vehicle position is within a second predetermined distance that is longer than the predetermined distance with respect to the set destination, and the ACC OFF switch OFF operation is detected, the route of the route guidance means The route guidance device according to appendix (1), characterized by comprising guidance forced termination means for terminating guidance.

  (3) If the vehicle position is within a second predetermined distance that is longer than the predetermined distance with respect to the set destination, and a stop is detected for a predetermined time or longer, the route guidance means guides the route. The route guidance device according to appendix (1), further comprising a guidance forcible ending means for ending.

  (4) The route guidance means includes a first guidance mode in which the predetermined distance is a first distance, and a second guidance mode in which the predetermined distance is a second distance longer than the first distance. The route guidance device according to any one of appendices (1) to (3), wherein

  Supplementary Note (5) The route guidance device according to Supplementary Note (4), characterized in that the route guidance unit includes a mode switching unit that switches a guidance mode according to selection (designation) by the user.

  Supplementary Note (6) The route guidance device according to supplementary note (4), further comprising mode switching means for switching a guidance mode of the route guidance means according to a destination setting mode by the user.

  (7) The route according to (4), further comprising mode switching means for switching the guidance mode of the route guidance means in accordance with the accuracy of the location information of the set destination (the accuracy of the map data). Guide device.

  (8) A feature is provided that includes mode switching means for forcibly switching to the second guidance mode when the frequency of reroute exceeds a predetermined number of times around the set destination during guidance in the first guidance mode. The route guidance device according to attachment (4).

  (9) A storage unit that stores the positional relationship between the set destination and the actual destination, and a mode switching unit that switches a guidance mode of the route guidance unit based on data stored in the storage unit. The route guidance device according to appendix (4), characterized in that.

  (10) Based on the data stored in the storage unit, when the error of the set destination with respect to the actual destination is greater than or equal to a predetermined reference value, the route guidance unit operates in the second guidance mode. The route guidance device according to attachment (9).

  (11) Based on the data stored in the storage unit, when the error of the set destination with respect to the actual destination is less than a predetermined reference value and is small, the route guidance unit operates in the first guidance mode. The route guidance device according to attachment (9).

  Additional remark (12) The route guidance device according to additional remark (10) or (11), wherein the error is evaluated for the same set destination or a set destination having the same attribute.

  Supplementary Note (13) When multiple users use, the storage means stores the positional relationship between the set destination and the actual destination in association with each user. The route guidance device according to any one of 12).

  (14) An input unit that stops the route guidance of the route guidance unit is provided, and the actual destination includes a vehicle position when the route guidance of the route guidance unit is stopped via the input unit. The route guidance device according to any one of appendices (9) to (13).

It is a system configuration figure showing an example of the main composition of route guidance device 100 by the present invention. 5 is a flowchart showing an operation example 1 of the mode switching unit 112. 10 is a flowchart illustrating an operation example 2 of the mode switching unit 112. 10 is a flowchart showing an operation example 3 of the mode switching unit 112. It is a figure which shows an example of the data stored in the user characteristic database. It is a flowchart which shows the operation example of the guidance forced termination part 114. FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 100 Route guidance apparatus 102 Own vehicle position detection part 104 Route guidance part 108 Map database 110 User characteristic database 112 Mode switching part 114 Guidance forced termination part 130 Input device 140 Display 150 Voice output device 160 Various sensors

Claims (3)

Connected to input means capable of inputting information by the user, a route to the vehicle position detection means for detecting the position of the vehicle and a destination set via the input means (hereinafter referred to as “set destination”) In a route guidance device comprising route guidance means for performing guidance,
A first guidance mode in which the route guidance means continues route guidance until the vehicle position is within a predetermined first distance with respect to the set destination; and A second guidance mode for continuing the route guidance until it is within a second distance longer than the distance,
A route guidance apparatus comprising mode switching means for switching a guidance mode of the route guidance means in response to a switching command input via the input means. Connected to input means capable of inputting information by the user, a route to the vehicle position detection means for detecting the position of the vehicle and a destination set via the input means (hereinafter referred to as “set destination”) In a route guidance device comprising route guidance means for performing guidance,
A first guidance mode in which the route guidance means continues route guidance until the vehicle position is within a predetermined first distance with respect to the set destination; and A second guidance mode for continuing route guidance until reaching a second distance longer than the distance,
Storage means for storing data representing the positional relationship between the set destination and the actual destination;
A mode switching means for switching a guidance mode of the route guidance means based on data stored in the storage means,   During the guidance in the first guidance mode, when the own vehicle position is within a predetermined distance longer than the first distance with respect to the set destination and the ACC off switch is turned off, or the own vehicle position If the vehicle is within a predetermined distance longer than the first distance with respect to the set destination and the vehicle is stopped while the drive source is turned on, the route guidance is detected. 3. The route guidance device according to claim 2, further comprising guidance forcibly terminating means for terminating the route guidance of the means.

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