JP2011069697A - Navigation system, route information display system, traffic difficulty notification method, and route information display method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a navigation system or the like notifying a user of the occurrence of any traffic difficulties on a normal route ordinarily used upon the departure so that the user may drive in good time. <P>SOLUTION: Upon the departure of a vehicle, traffic jam information is automatically received by a traffic jam information inspection part 11. The destination corresponding to the condition at the departure time is automatically obtained from a storage medium 3c in a step S15. Search for a route to the destination is performed while taking into account on the traffic jam at that time in a step S25. The required time in the case of traveling the normal route to the destination obtained in the step S17 is calculated in a step S35. When the travel prediction time of the searched route by the step S25 is substantially different from the required time calculated by the step S35, it is assumed that traffic difficulties occur on the normal route to the destination, and the corresponding notification is automatically performed in a step S50. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a navigation device and the like for searching and guiding a route from a current location to a destination.

  In recent years, navigation devices that are mounted on vehicles and guide a route from a current location to a set destination have become widespread. Some conventional navigation devices have a function of guiding to avoid traffic congestion appropriately. For example, traffic jam information is acquired from a road traffic information center, and using a vehicle position and a vehicle direction, it is determined whether or not there is traffic jam ahead in the traveling direction on a road on which the vehicle is currently traveling. Then, when the amount of traffic congestion is expected to be greater than a predetermined reference value, a route that is detoured so as not to be involved in the traffic congestion is searched and displayed.

JP-A-8-96294

  In general, when a user uses a vehicle on a daily basis, such as commuting or shopping, the route to travel is known to the user. In many cases, the vehicle is departed. In the above-described conventional technology, an arbitrary destination is input and set by the user, a route to the destination is searched and fixed, and the above-described congestion avoidance can be performed only when guidance on the route is performed. There is no guidance for. Therefore, in the case of the above-mentioned daily use, it is not possible to obtain the traffic jam avoidance effect by the above prior art. As a result, when a traffic obstacle such as an accident or construction has occurred on the route, the user finally notices the traffic obstacle after reaching the site after the departure and getting involved in a traffic jam. In this case, since it becomes difficult for the user to act according to the scheduled time, he / she performs a rushed drive or an increased speed operation in time for the scheduled time, making it impossible to drive with a margin. .

  The problem to be solved by the present invention includes the above-described problem as an example.

  In order to solve the above-mentioned problem, the invention according to claim 1 is directed to a destination in a past vehicle traveling history, a first transit point that has passed to the destination, and a first required time to reach the destination. The first normal route information including the normal route storage means stored in association with the condition at the time of departure of the vehicle (hereinafter referred to as the condition at the time of departure), and corresponding to the condition at the time of departure at the time of departure of the vehicle A first normal route acquisition unit that acquires the first normal route information from the normal route storage unit; a traffic jam information acquisition unit that acquires traffic jam information when the vehicle departs; and the traffic jam information acquired by the traffic jam information acquisition unit. In consideration of this, a first search is made for a route via the second waypoint that can be reached in the shortest second required time to the destination included in the first normal route information acquired by the first normal route acquisition means. One search means; When the traffic jam information acquired by the traffic jam information acquisition unit is taken into consideration, the vehicle travels on the normal route indicated by the first normal route information acquired by the first normal route acquisition unit and reaches the destination. A difference between the required time calculating means for calculating the third required time, the second required time based on the search by the first search means, and the third required time calculated by the required time calculating means is calculated. A difference calculating means, and a traffic fault notifying means for notifying the occurrence of a traffic fault on the normal route indicated by the first normal route information when the difference calculated by the difference calculating means is not less than a predetermined threshold value. It is characterized by having.

  In order to solve the above-described problem, the invention according to claim 8 is directed to a route that has traveled in the past, a date and time that the vehicle has traveled, and the route, based on at least the date and time at the time of departure and the current position. The second normal route acquisition means for acquiring the second normal route information from the travel history information including the actual time required to reach the destination, and the vehicle traveled on the route indicated by the second normal route information when the vehicle departed The traffic obstacle information acquisition means for acquiring the traffic obstacle information that becomes an obstacle to the driving in the case, and the required time to reach the destination in the route indicated by the second normal route information when the traffic obstacle information is considered Second search means for searching for a recommended route with the shortest time, and when at least a part of the recommended route is different from the route indicated by the second normal route information, the recommended route and the relevant route The recommended route information including the required time in the recommended route and the second normal route information are displayed so that they can be compared, and the display portions having different contents are emphasized in the recommended route information and the second normal route information. And display means for displaying.

  In order to solve the above-mentioned problem, the invention according to claim 10 is directed to a destination in the past vehicle travel history, a first transit point that has passed to the destination, and a first required time to reach the destination. From the normal route storage means that stores the first normal route information including the above in association with the conditions at the time of departure of the vehicle (hereinafter referred to as the conditions at the time of departure), it corresponds to the conditions at the time of departure at the time of departure of the vehicle In consideration of the first normal route acquisition step of acquiring the first normal route information, the traffic jam information acquisition step of acquiring traffic jam information when the vehicle departs, and the traffic jam information acquired in the traffic jam information acquisition step In addition, a first search for a route via the second waypoint that can be reached in the shortest second required time to the destination included in the first normal route information acquired in the first normal route acquisition step. Search process and the traffic jam When the traffic jam information acquired in the information acquisition step is taken into account, the vehicle travels on the normal route indicated by the first normal route information acquired in the first normal route acquisition step and reaches the destination. Between the required time calculating step for calculating the third required time, the second required time based on the search of the first search step, and the third required time calculated in the required time calculating step. A difference calculating step for calculating a difference, and when the difference calculated in the difference calculating step is equal to or greater than a predetermined threshold, notification of occurrence of a traffic fault on the normal route indicated by the first normal route information And a traffic fault notification step.

  In order to solve the above-described problem, the invention described in claim 11 is based on at least a route that has traveled in the past, a date and time that the vehicle has traveled, and a route at the time of departure based on at least the date and time at the time of departure and the current position. A second normal route acquisition step for acquiring second normal route information from the travel history information including the actual time required to reach the destination, and the vehicle traveled on the route indicated by the second normal route information when the vehicle departed A traffic obstacle information acquisition step for acquiring traffic obstacle information that becomes an obstacle to the driving in the case, and the required time to reach the destination on the route indicated by the second normal route information when the traffic obstacle information is considered When the second search step for searching for the recommended route with the shortest time and at least a part of the recommended route differ from the route indicated by the second normal route information, The recommended route information including the required time in the recommended route is displayed so that it can be compared with the second normal route information, and the display portion having different contents is emphasized in the recommended route information and the second normal route information. And a display control step for displaying.

It is a system configuration figure showing an example of composition of a navigation device in an embodiment of the present invention. It is a block diagram which shows the software structural example of the traffic obstacle display program which operate | moves in the navigation apparatus shown in FIG. It is a figure which shows the structural example of the normal route information table which records and manages normal route information. It is explanatory drawing explaining a mode that a route search is performed based on traffic jam information. It is a flowchart which shows the example of a procedure of a traffic obstruction display process. It is a figure which shows an example of the display mode displayed on a display by step S50 of FIG. It is a figure which shows the other example of the display mode displayed on a display by step S50 of FIG. It is a figure which shows an example of the display mode displayed on a display by step S55B of FIG. It is a flowchart which shows the example of a procedure of a display process in the modification which performs a comparison display on the basis of the identity of a normal path | route and a search path | route. It is a figure which shows an example of the display mode displayed on a display by step S50 of FIG. It is a figure which shows an example of the display mode displayed on a display by step S55B of FIG.

  Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

  FIG. 1 is a system configuration diagram illustrating a configuration example of a navigation device according to the present embodiment.

  The navigation device 100 includes a CPU 1, a VICS receiving unit 2, a storage unit 3, a GPS unit 4, a speaker 5, and a display 6.

  The CPU 1 has a function of controlling the navigation device 100 as a whole by performing various calculations according to the operation of a predetermined program and exchanging information with other units and outputting various control instructions.

  The VICS receiving unit 2 uses the FM broadcast wave transmitted from the FM broadcast station 52 to transmit the radio beacon 53 and the optical beacon 54 using the VICS traffic information (Vehicle Information and Communication System traffic jam information) output from the VICS center 51. It has the function to receive via.

  The storage unit 3 includes a ROM 3a, a RAM 3b, and a storage medium 3c. The ROM 3a is an information storage medium in which various processing programs described later and other necessary information are written in advance. The RAM 3b is an information storage medium on which information necessary for executing the various programs is written and read. The storage medium 3c is an information storage medium such as a flash memory or a hard disk. The storage medium 3c corresponds to normal route storage means, and has a function of storing normal route information in a non-volatile manner in association with the departure date and time classification as will be described later.

  The GPS unit 4 uses a GPS sensor (not shown in particular) to measure the current location of the vehicle, and performs a predetermined route search and route guidance based on map information stored in advance. It has a function.

  The speaker 5 has a function of outputting sound to the inside of the vehicle under the control of the CPU 1. The display 6 has a function of displaying, for example, a map image based on the map data or displaying various other information under the control of the CPU 1.

  FIG. 2 is a block diagram illustrating a software configuration example of a traffic fault display program that operates in the navigation device 100 illustrated in FIG. 1.

  The traffic obstacle display program has a traffic jam information receiving unit 11, a route searching unit 12, a guiding unit 13, a difference calculating unit 14, a control unit 15, and a required time calculating unit 16 as its functions. To demonstrate.

  The traffic jam information receiving unit 11 corresponds to a traffic jam information acquiring unit, and the VICS receiving unit 2 acquires VICS traffic jam information. In the example of the present embodiment, the VICS system is used as a means for acquiring the traffic jam information. However, the present invention is not limited to this, and other systems capable of acquiring equivalent traffic jam information may be used.

  The route search unit 12 has a function of searching for a route from the current location to the destination. At this time, both the case where the route is simply searched under the control of the control unit 15 and the case where the route which can avoid the traffic jam is searched based on the VICS traffic jam information acquired by the traffic jam information receiving unit 11 are distinguished. Can do. Then, as described later, any of the searched route information is appropriately recorded in the normal route information PD as normal route information described later.

  The guide unit 13 guides the vehicle based on the map data MD while displaying a guide route from the current location of the vehicle to the destination. At this time, when the vehicle reaches the vicinity of the intersection where the vehicle should turn right or left along the guidance route, guidance guidance such as an instruction to turn right or left is output by voice from the speaker 5 or display on the display 6.

  The required time calculation unit 16 corresponds to the required time calculation unit, and calculates a required time (third required time) necessary for traveling on the normal route acquired from the normal route information PD.

  The difference calculation unit 14 corresponds to a difference calculation means, and the route search unit 12 avoids traffic jam based on the required time calculated for traveling on the normal route calculated by the required time calculation unit 16 and the VICS traffic jam information. A difference from a required time (second required time to be described later) required to travel on the searched route is calculated.

  The control unit 15 transmits / receives various information and outputs instruction commands to / from the traffic information receiving unit 11, the route searching unit 12, the guiding unit 13, the difference calculating unit 14, and the required time calculating unit 16 described above. Control the overall processing of the traffic fault display program.

  FIG. 3 is a diagram illustrating a configuration example of a normal route information table that records and manages normal route information based on past vehicle travel histories. This normal path information table is information recorded and managed in the storage medium 3c.

  In the normal route information table of the example shown in FIG. 3, an item of a departure date / time section (time section) that considers the time when the vehicle is powered on, that is, when the accessory is activated (hereinafter referred to as ACC ON as appropriate) as the departure time ( The leftmost item in the figure is provided. In this example, a 5-minute interval is used, and a distinction between weekdays and holidays is recorded.

  Corresponding to each departure date and time category, the number of travels, the destination, the waypoint (corresponding to the first route), the required time (corresponding to the first required time), and the travel distance are recorded as normal route information. Yes.

  The item “number of times traveled” indicates the number of times the vehicle has traveled the corresponding normal route. The item “Required Time” indicates the actual required time (actually measured time) when traveling on the corresponding normal route. The item “travel distance” indicates the travel distance when traveling on the corresponding normal route.

  The reason why the normal route information is recorded by distinguishing the departure date and time division as described above is as follows. In other words, there is a possibility that the route will change greatly due to the time travel restrictions in the city area and the influence of the school zone, etc., so that the route may change significantly. Commuting rush hours, etc.). Further, since the destination may be different between weekdays and holidays, normal route information is distinguished. In addition, even when a different destination / travel route is set even at the same departure date and time due to a detour on the way, the corresponding normal route information is additionally recorded (the third from the top in FIG. 3 above). Example). In addition, the normal route having the largest number of travels is preferentially acquired even in the same departure date and time classification.

  Note that the departure point is always assumed to be the same point, and for the sake of illustration, only one waypoint is shown in FIG. 3, but a large number of waypoints may be recorded as actual route information. Good.

  In the above basic configuration and operation, the main part of the present embodiment is that when a user gets into a vehicle and starts using it, a search that considers traffic jam prediction is automatically performed for a destination for daily use, and that The occurrence of traffic faults (accidents) is reported based on the travel time required for the searched route. Hereinafter, the details will be sequentially described.

  When the user performs ACC ON of his / her vehicle at the departure place, the normal route information table of FIG. 3 described above is referred to, and the normal route information having the largest number of travels among the normal route information corresponding to the date / time classification at that time. Is acquired. For example, when the date and time when the ACC is turned on is 8:07 on weekdays, the normal route information including the destination aaa and the route bbb in the second row from the top of FIG. 3 is acquired.

  FIGS. 4A and 4B are diagrams for explaining the contents of the automatic search by the route search unit 12 taking into account the above-mentioned VICS traffic jam information when the normal route information of the above example is acquired. . In the above example, the normal route information including the destination aaa is acquired. In this case, the search for the shortest route to the same destination aaa is automatically executed.

  FIG. 4A shows a search route searched when no traffic jam is predicted on the normal route to aaa according to the VICS traffic jam information. In this case, since occurrence of traffic jam is not predicted on the normal route, the searched route matches the normal route acquired from the normal route information table. As a result, the required time (second required time) predicted when traveling on the searched route is almost the same as the required time (first required time) included in the normal route information in the normal route information table. These deviations (differences) are small. In this case, the navigation device 100 displays only the searched route (the same route as the normal route) at the time of departure. As a result, the vehicle starts traveling on the normal route. After the travel is completed, the number of travels in the normal route information is incremented by 1 in the normal route information table corresponding to the travel performance.

  Note that the normal route information is stored in the normal route information table not only by automatic storage by the above-described method but also by general navigation travel. In other words, when a vehicle searches for a route based on a user's operation and is displayed and guided, and the vehicle actually travels to the destination, the destination, waypoint, required time, travel distance, etc. related to the guidance are the actual values. To be recorded.

  On the other hand, FIG. 4B shows a search route searched for bypassing the route ccc because traffic congestion such as an accident is predicted on the normal route to aaa based on the VICS traffic information. . In this case, the required time (third required time) predicted when the vehicle travels on the normal route where the traffic jam occurs is the required time (the first required time) included in the normal route information of the normal route information table. Naturally, it will be longer than 1 required time). Therefore, the required time (second required time) predicted when traveling on the searched route as a detour is shorter than the required time (third required time) of the normal route where the traffic jam occurs. In this case, at the time of departure, the navigation device 100 passes through a searched route (a detour route different from the normal route) according to the difference (difference) between the second required time and the third required time. The ground ccc and required time are displayed. At that time, in order to clarify the occurrence of a traffic fault such as an accident on the normal route, the transit point information and the required time information are emphasized and displayed from other surrounding information (see FIG. 6 described later). At the same time, the normal route information (actual value) from the corresponding normal route information table is also displayed (see FIG. 6 described later). Further, the location where the traffic obstacle occurs is displayed as a map (see FIG. 6 described later).

  FIG. 5 is a flowchart showing an example of the procedure of a traffic fault display process for executing the contents as described above. This traffic fault display process includes a procedure realized by the traffic fault display program operating under the control of the CPU 1. As described above, this flow is automatically executed when the user can regard the vehicle as ACC ON or at the time of departure from the vehicle without any special operation on the navigation device 100. To start.

  In FIG. 5, in step S <b> 5, traffic jam information is acquired via the VICS receiver 2 by the processing of the traffic jam information receiver 11.

  Thereafter, in step S10, the normal route information table of FIG. 3 is referred to and it is determined whether there is normal route information corresponding to the departure date and time classification at that time. If there is such normal route information, the determination is satisfied, and in step S15, the destination in the normal route information with the largest number of travels corresponding to the departure date and time division is acquired.

  Then, the process proceeds to step S17, and the transit point, the required time, and the travel distance corresponding to the departure date / time segment in the normal route information obtained in step S15 are obtained. Thereafter, the process proceeds to step S25 described later.

  On the other hand, if it is determined in step S10 that no departure has been made in the departure date and time classification and the corresponding normal route information has not been recorded, the determination in step S10 is not satisfied, and the process proceeds to step S20. In step S20, a flag F (initially set to 0 in advance) indicating a manual operation input for the destination is set to 1, and the process proceeds to step S22.

  In step S22, the user is requested to set a destination operation input, and the destination set by the user is acquired. Thereafter, the process proceeds to step S25.

  In step S25, a route that can be reached in the shortest required time to the destination acquired in step S15 (or the destination set in step S22) is searched with reference to the traffic jam information acquired in step S5. The search route is acquired. Note that the route search processing based on the traffic jam information is performed by a known route search method for avoiding traffic jams, and detailed description thereof is omitted here.

  Thereafter, the process proceeds to step S30, and it is determined whether or not F = 1. As described above, when the destination is operated and input by the user, the determination is satisfied because F = 1 in step S20, and the process proceeds to step S55A described later. If the destination is acquired from the normal route information in step S15 described above, F = 0 remains and the determination is not satisfied, and the routine goes to step S35.

  In step S35, referring to the traffic jam information acquired in step S5, at this time, the time required to travel to the destination acquired in step S15 via the transit point acquired in step S17. Is predicted and calculated. The required time calculation process based on the traffic jam information is performed in accordance with a known route search method considering traffic jams, and detailed description thereof is omitted here.

  In step S40, the difference calculation unit 14 calculates the difference between the required time for traveling on the normal route calculated in step S35 and the required time for traveling on the searched route acquired in step S25. .

  Thereafter, the process proceeds to step S45, and it is determined whether or not the difference calculated in step S40 is greater than or equal to a predetermined value, that is, whether or not the required time during normal route travel and the required time during search route travel are significantly different. . If the difference is greater than or equal to the predetermined value, the determination is satisfied, that is, it is considered that some kind of traffic obstacle has occurred on the route based on the traffic jam information, and the process proceeds to step S50.

  In step S50, the searched route information searched in step S25 is displayed on the display 6 in comparison with the normal route information acquired in steps S15 and S17. Thereby, it is notified that some kind of traffic trouble has occurred on the normal route (refer to FIG. 6 described later for details of the display mode). At this time, a display sound may be generated from the speaker 5 to prompt the user to pay attention. Then, this flow ends.

  On the other hand, if F = 1 in step S30 and the determination is satisfied, the search route information searched in step S25 is displayed on the display 6 in step S55A. In this case, since the destination is operated and input by the operator, the searched route information to the destination input in step S22 is displayed for the first time as appropriate route information corresponding to the departure date and time classification at that time. The

  Then, the process proceeds to step S70, and since the searched route displayed on the display is a route searched for the first time corresponding to the departure date and time classification at that time, the normal route information table of FIG. It is additionally recorded as new normal route information corresponding to the departure date / time classification. Then, this flow ends.

  On the other hand, if the difference calculated in step S40 is less than the predetermined value in step S45, the determination is not satisfied and it is considered that no traffic obstacle has occurred on the route, and the process proceeds to step S55B. In step S55B, the search route information searched in step S25 is displayed on the display 6 as in step S55A. In this case, as described above, the time required for traveling on the normal route and the time required for traveling on the searched route are not so different. In fact, the searched route searched in step S25 is acquired in steps S15 and S17. It is almost the same as the normal route. Therefore, in this case, the searched route is displayed as almost the same route as the normal route.

  Then, the process proceeds to step S65, where the searched route displayed on the display 6 is regarded as substantially the same as the normal route corresponding to the departure date / time classification at that time, and the departure at that time in the normal route information table of FIG. The number of travels corresponding to the date / time classification is updated by one. Then, this flow ends.

  FIG. 6 is a diagram showing an example of a display mode of the display 6 in the procedure of step S50 in the flow of FIG.

  In the illustrated example, the normal route information 21 and the searched route information 31 are displayed on the left side on the display 6 (the display portion of the searched route information 31 corresponds to the search display means). In addition, on the right side, a map image M of a surrounding area where a causal event causing the traffic jam occurs, and text information 41 (extra article) describing the causal event are displayed.

  The normal route information 21 displays information items of two waypoint information 22, 23, travel distance information 24, required time information 26, and high speed toll information 27 in order from the top. The waypoint information 22, 23, the travel distance information 24, and the required time information 26 display the contents acquired from the table shown in FIG. The path configuration is shown. The high-speed toll information 27 indicates a toll on the highway necessary for traveling on the normal route.

  The searched route information 31 displays information items of two waypoint information 32 and 33, travel distance information 34, required time information 35, and high-speed toll information 36 in order from the top. The waypoint information 32 and 33 and the travel distance information 34 display the information detected and calculated when the searched route is searched, and indicate a schematic route configuration of the searched route to the user. The required time information 35 indicates the required time from starting from that point to traveling on the searched route until reaching the destination based on the search result. The high-speed toll information 36 indicates a toll on the highway necessary for traveling on the searched route.

  At this time, in response to the determination in step S45 of the flow of FIG. 5 being satisfied (that is, there is a large difference between the required time for traveling on the search route calculated in step S40 and the required time for traveling on the normal route). , One of the waypoint information 33 “route place 1” and the required time information 35 are displayed as information items that particularly emphasize the difference from the normal route. It is displayed in thick). Depending on the value of the difference between the travel time required for the searched route and the travel time required for the normal route (in other words, depending on whether it is a serious traffic fault or a minor traffic fault), for example, FIG. As shown in FIG. 7, only the waypoint information 33 may be highlighted. Alternatively, only the required time information 35 may be highlighted.

  Returning to FIG. 6, in the map image M on the right side of the display, a marker 61 is displayed at a point that causes a traffic jam (subway construction in the illustrated example), and the regulation contents 42 and the regulation details as text information 41 related thereto. 43, information items of cause event 44 and cause detail 45 are displayed. This is displayed based on the contents acquired from the VICS traffic jam information.

  As described above, by displaying the normal route information 21, the searched route information 31, and the text information 41 on the display 6, the user can grasp the occurrence and details of the traffic fault on the normal route.

  FIG. 8 is a diagram showing an example of the display mode of the display 6 in the procedure of step S55B in the flow of FIG.

  In the illustrated example, the search route information 21 and the search route information 31 are displayed on the left side on the display 6. Further, on the right side, a map image Mo (including a marker indicating the position of the vehicle. Detailed illustration is omitted) corresponding to the searched route information 21 is displayed.

  The searched route information 41 displays information items of two waypoint information 42 and 43, travel distance information 44, required time information 45 at the present time, and high-speed toll information 47 in order from the top. The waypoint information 42 and 43 and the travel distance information 44 correspond to the waypoint information 32 and 33 and the travel distance information 34 in FIGS. 6 and 7 described above, and are detected and calculated when the search route is searched. Showing things. The required time information 45 corresponds to the required time information 35 shown in FIGS. 6 and 7, and based on the above search results, the required time required to start from that point and travel along the search route to reach the destination. Is shown. The high-speed toll information 47 corresponds to the high-speed toll information 37 in FIGS. 6 and 7 and indicates the toll on the highway necessary for traveling on the searched route.

  In the navigation device 100 according to the above-described embodiment, the first normal route including the destination in the past vehicle travel history, the first waypoint that has passed to the destination, and the first required time to reach the destination. A storage medium 3c (corresponding to normal route storage means) that stores information in association with conditions at the time of departure of the vehicle (hereinafter referred to as departure conditions), and corresponds to the conditions at the time of departure at the time of departure of the vehicle. Steps S15 and S17 for acquiring the first normal route information from the storage medium 3c (corresponding to a first normal route acquisition means), and a traffic information receiving unit 11 (congestion information) for acquiring traffic information when the vehicle departs. Corresponding to the acquisition unit) and the traffic information acquired by the traffic information receiving unit 11 in consideration of the traffic information acquired by the steps S15 and S17. The procedure of step S25 (corresponding to first search means) for searching for a route via the second waypoint that can reach the destination included in the normal route information in the shortest second required time, and the traffic jam information receiving unit When the traffic jam information acquired by the vehicle 11 is taken into consideration, the third required time until the vehicle reaches the destination by traveling on the normal route indicated by the first normal route information acquired by the steps S15 and S17. The procedure of step S35 for calculating time (corresponding to the required time calculation means), the second required time based on the search in the procedure of step S25, and the third required time calculated by the procedure of step S35. When the difference calculated by the difference calculating unit 14 (corresponding to the difference calculating unit) and the difference calculated by the difference calculating unit 14 are equal to or greater than a predetermined threshold, the first normal path information indicates It has a procedure of step S50 for notifying the occurrence of the traffic hazard on the normal path (corresponding to the traffic hazard notification means), a.

  In the traffic fault notification method executed by the navigation device 100 of the above-described embodiment, the destination in the past vehicle travel history, the first transit point that has passed to the destination, and the first required time until the destination is reached. From the storage medium 3c (corresponding to the normal route storage means) that stores the first normal route information including the information in association with the conditions at the time of departure of the vehicle (hereinafter referred to as the conditions at the time of departure), the time at the time of departure of the vehicle Steps S15 and S17 for acquiring the first normal route information corresponding to the departure time conditions (corresponding to the first normal route acquisition step) and steps S5 for acquiring traffic jam information at the time of departure of the vehicle ( Obtained in the procedure of steps S15 and S17 in consideration of the traffic jam information acquisition step) and the traffic jam information acquired in step S5. The procedure of step S25 (corresponding to the first search step) for searching for a route via the second waypoint that can reach the destination included in the first normal route information in the shortest second required time, and the step When the traffic jam information acquired in the procedure of S5 is taken into consideration, the vehicle travels on the normal route indicated by the first normal route information acquired in the procedures of the steps S15 and S17 and reaches the destination. Calculated in the procedure of step S35 for calculating the third required time (corresponding to the required time calculation step), the second required time based on the search in the procedure of step S25, and the procedure of step S35. When the difference between the third required time and the procedure of step S40 (corresponding to the difference calculation step) is calculated and the difference calculated by the procedure of step S40 is greater than or equal to a predetermined threshold value. To have a procedure of step S50 for notifying the occurrence of the traffic disturbance to the first normal normal on the path indicated by the path information (corresponding to traffic hazard notification step).

  In this way, traffic information and normal route information corresponding to the conditions at the time of departure can be automatically acquired when the vehicle departs without any operation on the navigation device 100 by the user. Based on the normal route information, it is possible to estimate the destination where the user departs at that time and the normal route up to that point, and automatically detect and display the occurrence of traffic congestion on the normal route based on the traffic congestion information Can be done automatically. As a result, the user can immediately recognize the occurrence of a traffic obstacle on the traveling normal route without manually operating the navigation device 100 after getting into the vehicle. As a result, it is possible to drive with a margin.

  In addition to the above-described configuration, the navigation device 100 according to the embodiment further includes search display means for displaying the route search result according to the procedure of step S25 (corresponding to first search means), and the step S50. The procedure (corresponding to the traffic fault notification means) highlights the waypoint information 33 (corresponding to the second waypoint) among the search results displayed in the step S25 as the occurrence of the traffic fault, The occurrence of the traffic obstacle is notified.

  In this way, it is possible to clarify that a route at a different waypoint has been searched in the display of the searched route information. Further, by clarifying that a transit point different from the normal route, in other words, a bypassed route has been searched, the user can be surely recognized that some kind of traffic trouble has occurred.

  In the navigation device 100 in the above embodiment, in addition to the above-described configuration, the procedure of step S50 further includes the required time information among the search results displayed by the procedure of step S25 as the occurrence of the traffic fault. The occurrence of the traffic fault is notified by highlighting 35 (corresponding to the second required time).

  In this way, in the search route information display, it can be clarified that not only the transit point but also the required time has changed from the normal route. In addition, by clarifying not only the transit point but also the change in required time, it is possible to make the user more surely recognize that some kind of traffic obstacle has occurred.

  In the navigation device 100 according to the above embodiment, in addition to the above-described configuration, the procedure of Step S50 further includes at least waypoint information of the first normal route information acquired by the procedures of Step S15 and Step S17. 22 and 23 (corresponding to the first waypoint) and normal time required information 26 (corresponding to the first required time) are displayed.

  In this way, the user can grasp how much the search route information 31 is detoured and how much is delayed on the basis of the departure point, the waypoint of the normal route, and the required time.

  In the navigation device 100 in the above embodiment, in addition to the above-described configuration, the procedure of step S50 further includes a cause event 44 (corresponding to a cause event of the traffic jam information) of the text information 41 acquired by the traffic jam information receiving unit 11. ) Is displayed as text.

  In this way, the user can confirm the details and details of the traffic fault that caused the traffic jam, and help determine whether or not to adopt the searched route.

  In the navigation device 100 in the above embodiment, in addition to the above-described configuration, the procedure of step S50 displays the location of the cause event 44 of the text information 41 as a map image M on the map.

  If it does in this way, the user can confirm on the map the occurrence location of the traffic fault which caused the traffic jam. In addition, when the user gets into the vehicle and performs ACC ON, the map image M is displayed even though no operation is performed, and a traffic obstacle has occurred between the usual destination to be visited from now on. The user can intuitively recognize this. Furthermore, the map image M which is a different place from the map image normally displayed when the navigation device 100 is operated (for example, a map image near the departure place) is displayed, which also causes the above-mentioned traffic obstacle. The user can intuitively recognize the occurrence.

  In the navigation device 100 according to the above embodiment, in addition to the above-described configuration, the departure time condition is at least one of departure time, distinction between weekdays and holidays, and the number of travels.

  In this way, it is possible to search for an appropriate route in consideration of the influence of morning commuting rush and time traffic restrictions, and to calculate the required time.

  In the above flow, in the flow of FIG. 5, there is a large difference between the required time for traveling on the normal route calculated in consideration of traffic jam in step S35 and the required time for traveling on the route searched in step S25. When the difference between them is relatively large, the search route information is displayed in comparison with the normal route information. However, instead of using the magnitude of the difference as a reference, the identity between the normal route and the searched route may be used as a reference. That is, when the route included in the normal route information acquired in step S15 and step S17 differs from the route that can be reached in the shortest required time searched in step S25 at least in part. Alternatively, the search route information may be displayed in comparison with the normal route information.

  FIG. 9 is a flowchart showing an example of a display processing procedure in such a modification, and corresponds to FIG. In the flow of FIG. 9, step S32 is newly provided instead of step S35, step S40, and step S45 in FIG.

  In FIG. 9, it is determined whether or not F = 1 in the same step S30 as described above. If the determination is not satisfied, the process proceeds to a newly provided step S32.

  In step S32, the normal route included in the normal route information acquired in steps S15 and S17 and the searched route (corresponding to the recommended route) acquired as the shortest required time in step S25 are exactly the same route. It is determined whether or not. If at least a portion is different, the determination in step S32 is not satisfied, and the process proceeds to step S50 similar to the above, and the search route information (corresponding to the recommended route information) searched in step S25 is displayed on the display 6 in step S15. And the normal route information (corresponding to the second normal route information) acquired in step S17. In that case, as shown in FIG. 10, the normal route information among the information items of the transit point information 32 and 33, the travel distance information 34, the required time information 35, and the high speed toll information 36 included in the searched route information 31 What is different from 21 may be displayed in a display mode that emphasizes more than the surroundings (in the example shown, the frame is thicker). Thereafter, this flow is terminated.

  On the other hand, if the normal route and the searched route are exactly the same in step S32, the determination is satisfied, and the process proceeds to step S55B similar to the above, and the searched route information searched in step S25 is displayed. In that case, as shown in FIG. 11, the required time information 45 among the information items of the transit point information 42 and 43, the travel distance information 44, the required time information 45, and the high-speed toll information 47 included in the searched route information 41. May be displayed in a display mode that emphasizes more than the surroundings (in the example shown, the frame is thicker). The subsequent step S65 is the same as that in FIG.

  In the navigation device 100 (corresponding to the route information display device) of this modified example, at the time of departure of the vehicle, based on at least the date and time at the time of departure and the current position, the route traveled in the past, the date and time of travel, and the route Steps S15 and S17 for obtaining normal route information from the travel history information including the actual time required to reach the destination in step S15 (corresponding to the second normal route acquisition means), and at the time of departure of the vehicle, step S15 When the traffic information is taken into consideration when the traffic jam information receiving unit 11 (corresponding to the traffic fault information acquisition means) that acquires the traffic fault information that becomes an obstacle to the driving when the route shown in step S17 is traveled, Step S2 for searching for a search route that takes the shortest time to reach the destination in the route indicated by the normal route information. And at least a part of the searched route is different from the route indicated by the normal route information, the searched route information 31 including the searched route and the required time in the searched route, and the The normal route information 21 is displayed so that it can be compared, and the route information 33, the travel distance information 34, the required time information 35, and the high-speed toll having different contents between the searched route information 31 and the normal route information 21 are displayed. Steps S50 and S55B for displaying the information 36 in an emphasized manner (corresponding to display means) are provided.

  In the route information display method executed by the navigation device 100 of the above embodiment, at the time of departure of the vehicle, based on at least the date and time of the departure and the current position, the route traveled in the past, the date and time of travel, and the route Steps S15 and S17 for obtaining normal route information from the travel history information including the actual time required to reach the destination (corresponding to the second normal route obtaining step), and at the time of departure of the vehicle, When considering the procedure of step S5 (corresponding to the traffic fault information acquisition step) for acquiring traffic fault information that becomes an obstacle to the driving when driving on the route shown in step S17, and the traffic fault information, the normal Step S for searching for a search route that takes the shortest time to reach the destination in the route indicated by the route information If the procedure 5 (corresponding to the second search step) and at least a part of the searched route are different from the route indicated by the normal route information, the searched route information 31 including the searched route and the required time in the searched route; The normal route information 21 is displayed so that it can be compared. The route information 33, the travel distance information 34, the required time information 35, and the high-speed information having different contents between the searched route information 31 and the normal route information 21 are displayed. Steps S50 and S55B for emphasizing and displaying the charge information 36 (corresponding to a display control process) are provided.

  In this way, the required time information 26 of the normal route that does not take into account traffic jams and the required time of the route that has to be compared at the present time due to the occurrence of a traffic jam with a sense close to the user's recognition based on the past travel history. The information 35 can be displayed in contrast.

  In the navigation device 100 of this modification, the procedure of step S55B (corresponding to the display means) is performed when the searched route and the route indicated by the second normal route information are the same. Only the route information 41 is displayed, and the required time information 45 of the displayed search route information 41 is emphasized and displayed as compared with other information in the search route information 41.

  Thereby, although a traffic obstacle has occurred to the user, it can be surely transmitted that it can arrive in the required time as much as usual if driving the same route as usual, and a sense of security can be given to the user.

  In addition to those already described above, the methods according to the above-described embodiments and modifications may be used in appropriate combination.

1 CPU
2 VICS receiver 3 Storage unit 3a ROM
3b RAM
3c Storage medium (equivalent to normal path storage means)
4 GPS unit 5 Speaker 6 Display 11 Traffic jam information receiver (corresponds to traffic information acquisition means)
12 route search part 13 guidance part 14 difference calculation part (equivalent to difference calculation means)
15 Control Unit 21 Normal Route Information 31 Searched Route Information 41 Congestion Information 100 Navigation Device MD Map Data PD Normal Route Information

Claims (11)

The first normal route information including the destination in the past vehicle travel history, the first waypoint that has passed to the destination, and the first required time to reach the destination is determined based on the conditions at the time of departure of the vehicle ( Hereinafter, the normal route storage means stored in association with the departure condition),
First normal route acquisition means for acquiring, from the normal route storage means, the first normal route information corresponding to the starting condition at the time of departure of the vehicle;
A traffic information acquisition means for acquiring traffic information when the vehicle departs;
In consideration of the traffic information acquired by the traffic information acquisition means, the destination included in the first normal route information acquired by the first normal route information can be reached in the shortest second required time. First search means for searching for a route via the second waypoint;
In consideration of the traffic jam information acquired by the traffic jam information acquisition unit, the vehicle travels on a normal route indicated by the first normal route information acquired by the first normal route acquisition unit and reaches the destination. A required time calculating means for calculating a third required time;
Difference calculating means for calculating a difference between the second required time based on the search of the first searching means and the third required time calculated by the required time calculating means;
A traffic fault notifying means for notifying the occurrence of a traffic fault on the normal route indicated by the first normal route information when the difference calculated by the difference calculating means is not less than a predetermined threshold;
A navigation device comprising: Search display means for displaying a search result of the route by the first search means;
The traffic fault notification means is
The navigation according to claim 1, wherein the occurrence of the traffic obstacle is notified by highlighting the second waypoint among the search results displayed by the search and display means as the occurrence of the traffic obstacle. apparatus. The traffic fault notification means is
The occurrence of the traffic fault is reported as the occurrence of the traffic fault by further highlighting the second required time among the search results displayed by the search display means. Navigation device. The traffic fault notification means is
4. The navigation device according to claim 2, wherein at least the first waypoint and the first required time among the first normal route information acquired by the first normal route acquisition unit are displayed. 5. . The traffic fault notification means is
5. The navigation device according to claim 1, wherein a cause event of the traffic jam information is displayed as text. The traffic fault notification means is
The navigation device according to claim 5, wherein the occurrence location of the cause event is displayed on a map. The departure conditions are:
The navigation apparatus according to any one of claims 1 to 6, comprising at least one of a departure time, a distinction between weekdays and holidays, and a number of times of travel. When the vehicle departs, at least based on the travel history information including the route traveled in the past, the travel date and time and the actual required time to reach the destination on the route, based on at least the date and time of the departure and the current position. 2 normal route acquisition means for acquiring 2 normal route information;
Traffic obstacle information acquisition means for acquiring, when the vehicle departs, a traffic obstacle information that becomes an obstacle to the traveling when traveling on the route indicated by the second normal route information;
A second search means for searching for a recommended route that takes a shortest time to reach a destination on the route indicated by the second normal route information when considering the traffic obstacle information;
When at least a part of the recommended route is different from the route indicated by the second normal route information, the recommended route information including the recommended route and the required time in the recommended route can be compared with the second normal route information. Display means for highlighting and displaying a display portion having different contents between the recommended route information and the second normal route information,
A route information display device comprising: The display means includes
When the recommended route and the route indicated by the second normal route information are the same, only the recommended route information is displayed, and the time required for the displayed recommended route information is set in the other recommended route information. The route information display device according to claim 8, wherein the route information display device emphasizes and displays the information. The first normal route information including the destination in the past vehicle travel history, the first waypoint that has passed to the destination, and the first required time to reach the destination is determined based on the conditions at the time of departure of the vehicle ( A first normal route acquisition step of acquiring the first normal route information corresponding to the departure time condition at the time of departure of the vehicle from the normal route storage means stored in association with the departure time condition hereinafter) ,
A traffic jam information acquisition process for acquiring traffic jam information when the vehicle departs;
In consideration of the traffic information acquired in the traffic information acquisition step, the shortest second required distance to the destination included in the first normal route information acquired in the first normal route acquisition step A first search step for searching for a route via the second waypoint that can be reached in time;
In consideration of the traffic information acquired in the traffic information acquisition step, the vehicle travels on the normal route indicated by the first normal route information acquired in the first normal route acquisition step and reaches the destination. A required time calculating step for calculating the third required time until
A difference calculating step of calculating a difference between the second required time based on the search in the first searching step and the third required time calculated in the required time calculating step;
A traffic fault notification step of notifying the occurrence of a traffic fault on the normal route indicated by the first normal route information when the difference calculated in the difference calculation step is equal to or greater than a predetermined threshold;
A traffic fault notification method characterized by comprising: When the vehicle departs, at least based on the travel history information including the route traveled in the past, the travel date and time and the actual required time to reach the destination on the route, based on at least the date and time of the departure A second normal route acquisition step of acquiring two normal route information;
When the vehicle departs, a traffic obstacle information acquisition step of acquiring traffic obstacle information that becomes an obstacle to the traveling when the vehicle travels on the route indicated by the second normal route information;
A second search step of searching for a recommended route that takes the shortest time to reach the destination on the route indicated by the second normal route information when considering the traffic obstacle information;
When at least a part of the recommended route is different from the route indicated by the second normal route information, the recommended route information including the recommended route and the required time in the recommended route can be compared with the second normal route information. And a display control step for highlighting and displaying a display portion having different contents between the recommended route information and the second normal route information,
A route information display method characterized by comprising:

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