JP2007322352A - Route information providing device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a route information providing device capable of guiding by automatically extracting congestion information on a route and information the user desires to know in the congestion information. <P>SOLUTION: This device is equipped with a storage means for storing map information, a present position calculation means for calculating the present position of a vehicle, a route searching means for setting destination and searching for at least one or more routes between two spots from the present position to the destination, a required time calculation means for calculating the time required for passing each congested section on the route searched for by the route searching means, a route guide means for guiding the route, a traveling history storage means for storing the position of a congested section on the route and the required time, and a congested section extraction means for extracting the congested section to be emphasized, by comparing the congested section searched for by the route searching means with the congested section stored in the traveling history storage means. Only the congested section that requires longer time than the previously specified time, relative to a required time calculated by the required time calculation means, is guided in an emphasized manner. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a route information providing apparatus capable of measuring a current point by GPS or the like and calculating a route from an arbitrary point to a destination in consideration of VICS, past traffic jam information, and the like.

 A conventional navigation apparatus can calculate a route using VICS, past traffic jam information, and the like, and can provide a route (route) that can be reached from the current position to the destination in the shortest time. If there is traffic jam information on this route, all the traffic jam information is shown.For example, the route is overlaid on the map. By drawing in the direction of the arrow, it is possible to intuitively indicate how much traffic is in which section on the route.

In addition, the conventional navigation device has an on-route scroll function that virtually runs on the calculated route, and when the map is scrolled along the route, the traffic congestion in the route is displayed to identify the traffic congestion section. It is configured to be able to. In addition, with such an on-route scroll function, even when the distance between the starting point and the destination is long and the route is long, by controlling the scrolling speed appropriately according to the scale of the map to be displayed, The route can be confirmed at an appropriate speed even by the on-route scrolling of the distance (see Patent Document 1).
JP 2000-230839 A

  However, in the conventional navigation device, when there is a plurality of traffic jam information on the route, all the traffic jam information is displayed regardless of the user's travel history etc., so the traffic jam stored in the travel history Even if there is a traffic jam section that requires a longer time than the information, all the traffic jam information is displayed in the same way, and there is a problem that it is not known which traffic jam of a section requires a longer time than the traffic history traffic information.

  In addition, when confirming the route to the destination and traffic jam information (route scroll), the scroll speed of the virtual travel is controlled according to the scale of the map to be displayed, and the route is adjusted at an appropriate scroll speed according to the user's needs. Even if the traffic congestion information is confirmed, there is a problem that the scroll control cannot be performed so that a traffic jam section on a route that is not in the travel history or a traffic jam section that requires a longer time than the travel history can be noticed.

  Accordingly, the present invention has been made to solve the conventional problem, and is a route that can automatically extract and guide the traffic information on the route and information that the user wants to know from the traffic information. An object is to provide an information providing apparatus.

The route information providing apparatus according to the present invention includes a storage means for storing map information, a current position calculating means for calculating the current position of the vehicle, and a destination between two points from the current position to the destination. Route search means for searching for at least one or more routes; required time calculation means for calculating a required time for each traffic jam section on the route searched by the route search means; and route guidance for guiding the route Means, travel history storage means for storing the position and required time of a traffic jam section on the route, and the time required for the traffic jam section searched by the route search means and the traffic jam section stored in the travel history storage means. A traffic jam section extracting means for extracting the traffic jam section to be compared and emphasized, and forcing only a traffic jam section that requires a predetermined time or more with respect to the required time calculated by the required time calculating means. To have a structure for assistance.

  The route information providing apparatus configured in this way compares the required time of the traffic congestion section existing on the route searched for with the required time in the past traffic congestion section stored in the travel history storage means, It is possible to emphasize and guide only a traffic jam location that takes longer than the required time stored in the history storage means. Note that the predetermined time or longer is, for example, when the time required for the traffic jam section searched by the route search means takes 5 minutes or longer than the time required for the traffic jam section stored in the travel history storage means. , The traffic congestion section is emphasized and guided. As guidance, voice guidance, display guidance, a combination of voice guidance and display guidance, or the like can be used.

  The route guidance means of the route information providing apparatus of the present invention comprises display means for displaying the set route, and the congestion section extracted by the congestion section extraction means is displayed on the display means. It has a configuration that highlights on the route.

  The route information providing apparatus configured in this way distinguishes traffic information in the route from other traffic information by displaying the traffic information on the route display means and highlighting the traffic information extracted by the traffic section selection means. be able to.

  Further, the route guidance means of the route information providing apparatus of the present invention comprises voice guidance output means for notifying route information by voice, and emphasizes the congestion section extracted by the congestion section extraction means to the route guidance means. In this way, a notification is made by voice.

  The route information providing apparatus configured in this way notifies the traffic information of the traffic jam section in the route extracted by the traffic jam section selection means in the route by voice using the voice guidance output means, so that other traffic jam sections Can be distinguished from the traffic jam section highlighted. In addition, it is possible to easily recognize a traffic jam location by displaying the traffic jam information in the route displayed on the display means and the traffic jam section to be emphasized and using voice guidance.

  Further, the route guidance means includes a route confirmation means for confirming the route by virtually moving the vehicle on the route.

  The route information providing apparatus configured as described above can virtually check the route by moving the vehicle virtually on the route, and can emphasize and guide the traffic jam section extracted by the traffic jam zone extraction means. When the vehicle is virtually moved on the route (route simulation), it is possible to emphasize and highlight a congested section of interest in the route. Note that guidance can be emphasized using voice guidance, map display, voice guidance, and map display, and at the same time by reducing the scroll speed when the vehicle is virtually moving on the route. It is possible to emphasize traffic jam sections.

  In addition, the integrated circuit of the present invention searches for and displays at least one route from the current position to the destination, as well as the time required for the traffic jam section in the searched route and the traffic jam zone of the route traveled in the past. It has the structure which extracts and guides the said traffic congestion area which should be emphasized by comparing with required time.

The integrated circuit configured as described above searches for at least one route from the current position to the destination, and the traffic congestion section and required time of the route stored in the travel history with respect to the searched route and the current time It is possible to extract and highlight a traffic jam section to be emphasized by comparing the required time and the traffic jam section.

  Further, the route information providing apparatus of the present invention includes a route search unit that sets a destination from a current position and searches for at least one route, a display unit that displays a route searched by the route search unit, Present on the route searched by the route search means, the travel history storage means for storing the required time of the traffic jam section on the route traveled in the past, the route confirmation means for virtually moving the route and confirming the route A traffic jam section extracting means for extracting the traffic jam section to be emphasized by comparing the time required for the traffic jam section to be compared with the time required for the traffic jam section stored in the travel history storage means. A configuration may be adopted in which the traffic jam section extracted by the traffic jam section extraction unit is emphasized and guided at the time of confirmation.

  The route information providing apparatus configured in this way searches for a route by setting a destination from the current position, and virtually moves the vehicle to the destination along the searched route to obtain route and traffic jam information. Etc., and when the route is confirmed by virtually moving the vehicle, the required time of the traffic congestion section of the current route and the required time of the traffic congestion section stored in the travel history storage means If the time required for the current traffic jam section is longer than the time required for the past traffic jam section, it can be guided with emphasis on the traffic jam section. You can do a traffic jam before driving.

  Further, the route information providing apparatus of the present invention is configured to display at least one of the predicted transit time, the traffic jam extension time, the traffic jam section passage speed, and the traffic jam reason in the traffic jam section extracted by the traffic jam section extraction means. You may comprise so that it may guide with a guidance means.

  The route information providing apparatus configured as described above compares the estimated passage time of the traffic jam section extracted by the traffic jam section extraction means, the required time stored in the travel history storage means and the required time of the traffic jam section on the route. The traffic jam extension time, the passing speed of the traffic jam section, the reason for the traffic jam of the traffic jam section extracted by the traffic jam section extraction means so that the time can be understood how much longer than the required time stored in the travel history storage means (for example, The user can grasp the reason why the traffic jam section is congested by displaying and voice guidance (accident traffic jam, natural traffic jam, regulatory traffic jam).

  The present invention compares the required time of a traffic jam section existing on a set route (route) with the required time of a past traffic jam section on the route stored in the travel history storage means, When the time is longer than the required time, the traffic jam section is emphasized and guided so that the user highlights the traffic jam that is larger (longer) than the past traffic jam section and displays voice or sound. It is possible to provide a route information providing apparatus having an effect that it is possible to guide using.

  Hereinafter, the route information providing apparatus of the present invention will be described in detail with reference to the drawings. In the embodiment, a navigation device is used as the route information providing device. FIG. 1 is a block diagram showing the configuration of the navigation device.

(First embodiment)
As shown in FIG. 1, a navigation device N (route information providing device) according to the present invention calculates a vehicle position by a main controller 1 (CPU 1) that controls the whole, a GPS receiver, an autonomous navigation sensor, and the like. The position calculation means 2, the travel history storage means 3 for storing the road (route) travel status, the route search means 4 for searching for a route from the current position to the destination, and the route searched by the route search means 4 The traffic jam section extracting means 5 for selecting the traffic jam section, the route guidance means 6 for guiding the route searched by the route searching means 4, the traffic jam information acquiring means 7 for acquiring the traffic jam information, and the map, the traffic jam information and the route are displayed. Display means 8 to be used, voice guidance output means 9 to be used for voice guidance when route guidance is being performed by the route guidance means 6, map information to be used for map display and route guidance by the navigation device N, Consists of a storage means 10 that stores the traffic information that has been subjected to the statistical processing and an input means 11 that can be used for input to the navigation device N and operations of the navigation device N. Has been.

  Here, the main controller 1 (CPU) controls the operation of the navigation device N, and the travel history storage means 3, the route search means 4, the vehicle position calculation means 2 and the like use the main controller 1 and the bus V. Connected. Further, when a traffic jam section is emphasized and guided, the traffic jam section on the map displayed on the display means 8 can be highlighted and displayed, or the traffic jam section can be emphasized and guided by voice guidance. It is configured.

  The own vehicle position calculation means 2 is configured to be able to calculate the own vehicle position by a GPS receiver, an autonomous navigation sensor, or the like. By using the own vehicle position calculated by the own vehicle position calculating means 2, it is possible to display the own vehicle position using the navigation device N and simultaneously display the road map to guide the route.

  The travel history storage means 3 stores a traffic jam section on a route traveled in the past and a required time of the traffic jam section. As a storage method, a traffic jam section is stored for each link, and a detailed traffic jam section is stored. It can be grasped, and since the time required for the traffic jam section is stored for each link, it can be used in combination when the route search means 4 searches for the route. Can respond.

  The route search means 4 can search at least one or more routes between two points from the current position to the destination, and map information stored in the storage means 10, past date and time, traffic jam information such as every day of the week, etc. Can be used for statistical traffic information stored in the storage means 10 that is statistically summarized, and traffic information acquired by the traffic information acquisition means 7 such as VICS and communication, taking into account past, present, and future traffic congestion. It is comprised so that the searched route | route can be searched.

  The traffic jam section extracting unit 5 is configured to be able to extract a traffic jam section in the route searched by the route searching unit 4 from the traffic jam information acquired by the traffic information acquiring unit 7, and for each link in the route, the traffic jam is extracted. It is comprised so that an area can be extracted.

The route guidance unit 6 displays a map of the route from the current position to the destination on the display unit 8 with respect to the route determined by the route search unit, or outputs voice guidance or the like using the voice guidance output unit 9. Thus, the route guidance can be performed. Also,
The vehicle position on the route from the current position searched by the route search means 4 to the destination can be virtually moved to check traffic congestion on the route, a branch point of the route, and the like. .

  The traffic information acquisition means 7 receives traffic jam information and traffic information from a roadside device arranged on the road using an optical beacon, or receives traffic jam information and traffic information by FM multiplex broadcasting. It is configured so that traffic information such as traffic jam information can be acquired.

  The display means 8 is configured so that the navigation device N can display a map corresponding to the vehicle position along with the vehicle position, and can display a route from the current position to the destination. The display unit 8 may be a touch panel type display unit 8 that can be operated by selecting an item displayed on the screen integrally with the input unit 11.

The voice guidance output unit 9 is configured to output voice such as a voice phrase stored in the storage unit 10 when performing route guidance. In general, a speaker can be used.

  The storage means 10 stores map information (electronic map data) used for the navigation device N, statistical traffic information that is statistically collected past traffic information, and the like, and is set by the user of the navigation device N. The destination and the registration point etc. which were made can be memorize | stored. Also, voice phrases used for voice guidance are stored, and voice phrases stored in the storage means 10 can be used in combination when performing voice guidance during route guidance or route scrolling. It is configured to be able to. The voice phrase is a word such as “200m ahead”, “intersection”, “right turn”, and the like, and by combining these words, it is possible to guide that “the intersection 200m ahead is a right turn”. The storage means 10 is a so-called commonly used storage medium, and for example, a hard disk or a memory card can be used.

  The input unit 11 is used for the operation of the navigation device N. For example, the destination is input, the display format such as 2D or 3D of the map displayed on the display unit 8 is changed, or desired from a plurality of routes. It is configured to be able to select a route. Further, as described above, the input unit 11 may be configured to operate the navigation device N as a touch panel on the display unit 8.

  Although the main controller 1, the vehicle position calculation means 2, the route guidance means 4, the traffic jam section calculation means 5, and the route guidance means 6 are each configured independently, they may be combined as one integrated circuit L. The integrated circuits may be combined individually.

  In addition, it is possible to provide a route confirmation unit that virtually moves the vehicle position on the route set by the route guidance unit 6 (route scroll) and can confirm a traffic jam section on the set route in advance. Good.

Next, the operation of the navigation device configured as described above will be described with reference to the drawings.
FIG. 2 is a schematic diagram showing section data when traveling between points A to D. FIG. 3 is a structural diagram showing an example of the travel data shown in FIG.

  As shown in FIG. 2, the travel data 1 is data of the required time when traveling from point A to point B, point C, and point D, and the travel data 2 is traveled from point A to point B, point C. Similarly, the travel data 3 is data of the required time when traveling from point B to point C and point D. Thus, the navigation device N always saves the required time for each section (for each link) in the travel history storage means 3.

  As shown in FIG. 3, the start point, end point, average required time, longest required time, shortest required time, distance traveled (section distance), travel date data, etc. are recorded in the travel history storage means 3 for each section data (link). It is configured to be. Further, in each section data of the travel history storage means 3, for example, by recording the time traveled at a speed of 8 km / h or less, it is possible to record data indicating the comfortable travel degree of the section. The travel date and time data is configured to record the travel date, travel day, travel time zone, weather, and the like.

Next, a data structure and operation for extracting a traffic jam section to be emphasized and guided will be described with reference to FIGS. 4 and 5.
FIG. 4 is a data structure diagram showing a comparison between the required time on the route and the required time of the stored travel history. FIG. 5 is a flowchart showing processing for extracting a traffic jam section to be emphasized and guided. FIG. 6 is a schematic diagram showing a state in which a traffic jam section on a route is highlighted. FIG. 7 is a schematic diagram showing a text display different from the display format shown in FIG.

  As shown in FIGS. 2 and 4, the average required time for each of the three sections of section 1, section 2, and section 3 from point A to point D on the route stored in the travel history storage means 3 is 19 Minutes, 11 minutes, and 17 minutes.

  As shown in FIG. 5, the extraction process of the traffic congestion section to be emphasized is performed by calculating a guide route from point A to point D in step S100 (S100), and on the route in step S101. It is determined whether or not there is a traffic jam (S101). If there is a traffic jam on the route (S101, YES), the time required for the traffic jam section is calculated in step S102 (S102).

  At this time, for example, as shown in FIG. 4, when there is traffic jam in section 1, section 2 and section 3 by route search considering traffic jam information, the required time is 30 minutes, 20 minutes and 20 minutes, respectively. Will be described.

  First, in step S103, a value obtained by multiplying the average required time of the travel data of the sections 1, 2 and 3 stored in the travel history storage means 3 by the enhancement degree extraction coefficient T1.3, A comparison is made with the required time in section 1, section 2, and section 3 (S103). At this time, the time required to apply the enhancement degree selection coefficient T to the required time in the sections 1, 2, and 3 is 24 minutes, 14 minutes, and 22 minutes.

  Here, the emphasis degree extraction coefficient is a coefficient set for obtaining a time during which the driver feels the traffic jam for a long time. The average required time of each section stored in the travel history storage means 3 is 1 or more and less than 1.5. Compare the time obtained by multiplying the coefficient of time with the required time of the traffic congestion section on the route, and highlight where the driver feels longer than the required time of the section stored in the travel history storage means 3 Can do. For example, on the route from point A to point D, the average required times of the sections A, B, and C stored in the travel history storage unit 3 are 5 minutes, 10 minutes, and 15 minutes, respectively, and the route search unit 4 If the required time of section A, section B, and section C on the route from point A to point D searched in step 15 is 15 minutes, 5 minutes, and 30 minutes, If the enhancement degree extraction coefficient is 1.2 for the time required for the sections A, B, and C of the travel history storage means 3, the section A is 6 minutes, the section B is 12 minutes, and the section C is 18 minutes. Compared with the time required for the sections A, B, and C in the route searched by the search means 4, the time for the section A is increased by 9 minutes, the time for the section B is reduced by 7 minutes, and the time for the section C is 12 minutes. It turns out that it becomes time increase of, and section A and ward By highlighting the C guides the congested section, the driver of the congested section according more than the average time required can easily grasp.

  At this time, if the required time of the traffic congestion section on the route is equal to or greater than the value multiplied by the enhancement degree selection coefficient T1.3 (S103, YES), it is extracted as the traffic congestion section emphasized in step S104. For example, referring to FIG. 4, the sections 1 and 2 are targeted (S103, YES), and the section 3 can be determined to be a traffic jam of about the time taken in daily life, and is not worth the traffic jam zone to be emphasized ( S103, NO) can be determined.

According to the navigation device of the first embodiment of the present invention configured as described above, the required time of the traffic jam section existing on the set route and the required time for each section stored in the travel history storage means, A traffic jam section to be emphasized to the user can be extracted by comparison. In particular, when extracting a traffic jam section to be emphasized on a route, by extracting only a traffic jam section that requires a certain time or more with respect to the required time stored in the travel history storage means, as shown in FIG. In addition, normal traffic jam is designated as traffic jam section T1, and is displayed as traffic jam section T2 with emphasis over this traffic jam section T1, so that traffic information of traffic jam sections different from usual on the route is automatically guided during route guidance. can do.

  Further, in the first embodiment, a traffic jam section that requires a certain proportion of time or more during route guidance is displayed with emphasis. However, the present invention is not limited. The route search means 4 searches for the route up to and the traffic information that is not stored in the travel history storage means 3 when performing the route scroll for confirming the route by virtually moving the vehicle along the searched route. Alternatively, it may be configured to highlight and display a traffic jam section that requires a longer time compared to the traffic jam information for each past section stored in the travel history storage means. By configuring in this way, when checking the route from the current position to the destination, it is possible to see which place is more congested than usual at the highlighted congestion section display on the route It can be easily confirmed.

  Further, when a list display from the current position to the destination as shown in FIG. 7 is performed, a normal traffic jam section T1 is set in the list display, and a traffic jam section T2 that requires a longer time than the normal traffic jam section time. By highlighting, even in the case of a list display for confirming the route to the destination at a glance, it is possible to easily confirm a traffic jam section that requires more time than usual.

(Second Embodiment)
Next, a second embodiment of the present invention will be described in detail with reference to the drawings. In the first embodiment, the congestion section on the map is highlighted and displayed so that the congestion section that requires more time than usual can be easily grasped. In the second embodiment, the voice section A navigation device that outputs the above will be described.
Note that the configuration of the device in the second embodiment is the same as the configuration of the first device, and a detailed description thereof will be omitted.
FIG. 8 is a flowchart showing the operation of the navigation device when playing back an audio phrase.

  As shown in FIG. 8, first, in step S200, it is determined whether there has been a change in the traffic situation or whether the destination has been set by the user (S200). When performing a route search (S200, YES) In step 201, route search processing is performed. In step S202, it is determined whether or not there is a traffic jam on the route searched by the route search means 4 (S201). If there is a traffic jam on the route (S201, YES), a traffic jam section is determined. Extract the required time.

  At this time, for example, as shown in FIG. 4, there is a traffic jam in section 1, section 2, and section 3 by route search taking traffic information into consideration, and the required times thereof are 30 minutes, 20 minutes, and 20 minutes, respectively. The case will be described below.

  In step S204 shown in FIG. 8, a value obtained by multiplying the average required time of the travel data for each section stored in the travel history storage means 3 by the enhancement degree selection coefficient T1.3, and for each section on the route by the route search. Compare with the time required. In Step S204, the time required for section 1, section 2, and section 3 multiplied by the emphasis degree selection coefficient T is 24 minutes, 14 minutes, and 22 minutes, respectively, and the time required for the congestion section is multiplied by the emphasis degree selection coefficient T1.3. If it is longer than the required time (S204, YES), it is extracted as a traffic jam section to be emphasized in step S205 (S205).

Here, in the example shown in FIG. 4, the sections 1 and 2 are targets, and the section 3 can be determined as a traffic jam of about the time taken every day, and is determined not to be a traffic jam section to be highlighted. . For the traffic jam section extracted here, using the voice phrase stored in the storage means 10 for the traffic jam start point, the traffic jam distance, the required travel time, etc. in step 206, step 20 is performed.
7, the voice phrase is reproduced from the voice guidance output means 9.

  In the embodiment of the present invention, the voice guidance processing is performed using the voice phrase for the traffic jam section to be emphasized by the change of the traffic jam situation and the route calculation instruction by the user, but the setting is changed so as to directly guide the traffic jam section. A switch may be provided.

  As described above, according to the navigation device N of the second embodiment of the present invention, it is possible to confirm the traffic jam section to be emphasized without looking at the display by guiding the traffic jam section to be emphasized using voice. .

  In the second embodiment of the present invention, the traffic congestion section to be emphasized is guided using voice. However, the present invention is not limited, and attention is paid to the route shown in the first embodiment. The same effect can be obtained by emphasizing and displaying a traffic jam section and guiding the traffic jam section to be noticed using voice. By configuring in this way, the time required for the traffic jam section on the route and the time required for the traffic jam section stored in the travel history storage means 3 are compared with the required time stored in the travel history storage means 3. When it takes a long time, it is possible to easily check which traffic jam section is more crowded than usual by emphasizing the traffic jam section and performing voice display and voice guidance.

(Third embodiment)
Next, a navigation device according to a third embodiment of the present invention will be described in detail with reference to the drawings. FIG. 9 is a schematic diagram illustrating an example of a screen when the route is being scrolled. The configuration of the navigation device in the third embodiment is the same as that described in the first embodiment or the second embodiment, and a detailed description thereof is omitted.

  As shown in FIG. 9, the navigation device N according to the third embodiment of the present invention “>> G” between the routes from the starting point (current position) searched for by the route searching means 4 to the destination. Can be automatically scrolled by depressing the direction switch SW, etc., and the scroll speed on the traffic jam section to be emphasized in the scroll processing is made slower than the normal speed (the speed at which the vehicle position M advances). Thus, the user of the navigation device N can easily confirm the emphasized traffic jam section.

  As described above, according to the navigation device N of the third embodiment of the present invention, when confirming the route to the destination by (automatically) scrolling the route, the time required for the traffic jam section on the route Compared with the required time of the traffic jam section stored in the travel history storage means 3, when it takes longer than the required time stored in the travel history storage means 3, the traffic jam section is highlighted and highlighted. Therefore, when the route is scrolled and the route is confirmed, it is possible to easily identify the congestion section that is more congested than usual.

  Further, the navigation device N shown in the first to third embodiments does not limit the present invention. For example, when the traffic jam section to be emphasized is extracted using the traffic jam section extraction means 5. In addition, more accurate accuracy can be obtained by comparing the time required for the traffic congestion section stored in the travel history storage means and the statistical traffic congestion information in which the past traffic congestion information stored in the storage means 10 is statistically summarized. It is possible to extract a highly congested traffic jam section.

Further, in the navigation apparatus N shown in the first to third embodiments, the configuration is such that emphasis display, voice guidance, and the like are used for the traffic jam section to be noticed, but the present invention is limited. It may be configured to display the time difference between the passage time of the traffic jam section highlighted for attention and the required time stored in the travel history storage means 3 instead of the above. May be configured to be guided by voice.

  Further, in the navigation apparatus N shown in the first to third embodiments, the main controller 1, the vehicle position calculating means 2, the route searching means 4, the traffic jam section extracting means 5, and the route guiding means 6 are provided. Although the configuration of each circuit is described, the present invention is not limited to this, and an integrated circuit in various combinations can be used, and the same effect can be obtained as an integrated circuit having all functions. In particular, by using an integrated circuit having all functions, it is possible to improve the processing speed of the navigation device N and reduce the size of the device, and to realize the navigation device N that maintains its performance even with a small size.

  As described above, the navigation device according to the present invention provides the time required for the traffic jam section existing on the set route (on the route) and the section for each section on the set route stored in the travel history storage means. Congestion information of traffic congestion sections that always require different travel times for users by comparing the required time and extracting and highlighting the traffic congestion sections that should be emphasized to the user of the navigation device and automatically performing voice guidance It is also useful as a navigation device such as a navigation device that can calculate a route from an arbitrary point to a destination and perform route guidance.

Block diagram showing the configuration of the navigation device Schematic diagram showing section data when traveling from point A to point D Structure diagram showing an example of the travel data shown in FIG. Data structure diagram showing comparison of required time on route and required time of travel history Flow diagram showing the process of extracting a traffic jam section to be emphasized and guided Schematic diagram showing a state where traffic congestion sections are highlighted on the route Schematic diagram showing a text display different from the display format shown in FIG. Flow chart showing the operation of the navigation device when playing back an audio phrase Schematic diagram showing an example of the screen when the route is scrolling the route

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Main controller 2 Own vehicle position calculation means 3 Travel history storage means 4 Route search means 5 Congestion section extraction means 6 Route guidance means 7 Congestion information acquisition means 8 Display means 9 Voice guidance output means 10 Storage means 11 Input means L Integrated circuit M Own vehicle position (own vehicle mark)
N Navigation device T1 Congestion display T2 Emphasized traffic display V Bus SW Operation button

Claims (5)

Storage means for storing map information;
Current position calculating means for calculating the current position of the vehicle;
Route search means for setting a destination and searching for at least one route between two points from the current position to the destination;
A required time calculating means for calculating a required time to pass for each traffic jam section on the route searched by the route searching means;
Route guidance means for guiding the route;
Travel history storage means for storing the position of the traffic jam section and the required time in the route;
A traffic jam section extracting means for extracting the traffic jam section to be emphasized by comparing the required time between the traffic jam section searched by the route search means and the traffic jam section stored in the travel history storage means;
A route information providing apparatus that emphasizes and guides only a traffic jam section that requires a predetermined time or more with respect to the required time calculated by the required time calculating means.     The route guidance means includes display means for displaying the set route, and highlights and displays the congestion section extracted by the congestion section extraction means on the route displayed on the display means. The route information providing apparatus according to claim 1, wherein     The route guidance means includes voice guidance output means for notifying route information by voice, and emphasizes the congestion section extracted by the congestion section extraction means to the route guidance means and notifies the route guidance by voice. The route information providing device according to claim 1 or 2.   The route information according to any one of claims 1 to 3, wherein the route guidance means includes route confirmation means for confirming a route by virtually moving the vehicle on the route. Providing device.     At least one or more routes from the current position to the destination are searched and displayed, and the required time of the traffic jam section on the searched route is compared with the required time of the traffic jam section of the route traveled in the past and emphasized. An integrated circuit characterized by extracting and guiding the traffic jam section.

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