JP2008304243A - Navigation system, navigation method and program - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a navigation system performing a route guidance having an appropriate content in accordance with a situation a driver faces. <P>SOLUTION: The navigation system 1 stores a history of a departure clock time in a departure history memory section 12 for each departure place. When a vehicle departs, a pattern analyzing section 24 obtains a departure frequency at the departure place for each departure clock time from information stored in the departure history memory section 12, and analyzes a distribution of the departure frequency for each departure clock time. A guidance content determining section 28 anticipates the situation the driver faces at the departure based on the distribution of the departure frequency and the departure clock time detected by a departure clock time detecting section 26, and determines the content of the route guidance. A route guiding section 30 performs the route guidance having the determined content. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a navigation apparatus that provides information such as route guidance.

  Conventionally, navigation devices that perform route guidance to a destination are known. Some of such navigation devices have a function of guiding a stoppage on the way to the destination as well as the destination.

Patent Document 1 discloses a navigation device that provides a user with information on a destination and a candidate for a stopover with high accuracy. In the navigation device of Patent Document 1, when the vehicle stops, the stop point is a destination or a stop-by point based on factors such as on / off of the parking brake, staying time, change in the number of passengers, etc. Determine whether. Based on the result of the determination, the stop point is stored as a destination or a stopover. When the navigation apparatus of Patent Document 1 performs route guidance, it reads out a stored destination or stopover, and presents current time information (time, day of week, month, day, season, etc.), weather information, driver information, etc. Based on the above, the destination and stopover are estimated.
JP 2007-10570 A

  In Patent Document 1 described above, a destination and a stopover are estimated, and route guidance to the estimated destination and stopover is performed, but the driver does not want to stop when arriving at the destination, for example. There is also. Even if the stopover is presented in such a situation, the result is only annoying for the driver.

  In the above-mentioned Patent Document 1, it is described that the destination and the stop-off place are estimated based on time information, weather information, driver information, etc., but in the above-mentioned Patent Document 1, the processing at the time of route guidance is mentioned in detail. Not done.

  In view of the above background, an object of the present invention is to provide a navigation device capable of providing information such as route guidance with appropriate contents in accordance with a situation where a driver is placed.

  The navigation device of the present invention includes a departure history storage unit that stores a history of departure times for each departure point, a departure time detection unit that detects the departure time as a departure detection time when leaving a predetermined departure point, The number of departures for each departure time at the predetermined departure place is obtained from the information stored in the departure history storage unit, and information to be provided is determined based on the distribution of the number of departures for each departure time and the departure detection time And an information providing unit for providing the determined information.

  In this way, the driver's behavior can be estimated by using the distribution of the number of departures for each departure time. For example, if the number of departures at a predetermined time on weekdays is large, it can be estimated that the driver has a habit of leaving the company at that time. Further, if the distribution of the number of departures is uniform on holidays, it can be estimated that there is a time margin. By comparing the distribution of the number of departures for each departure time and the time detected at the departure (departure detection time), the navigation device can be used in a timely manner even if the driver does not consciously set the schedule such as the departure time. It is possible to estimate whether or not there is a surplus situation, and it is possible to provide appropriate information according to the situation.

  In the navigation device of the present invention, the information providing unit includes a time zone in which the number of departures includes a peak departure time, and the number of departures before the peak is greater than the number of departures at a time after the peak. When the departure detection time is included and the departure detection time is more than a predetermined time before the departure time of the peak, information on a stop on the way to the destination may be provided.

  In this way, the distribution including the departure time at which the number of departures reaches a peak and the number of departures before the departure time is larger indicates a tendency to leave before the time at which the number of departures reaches a peak. In this distribution, it is estimated that if the user departs at the time when the number of departures reaches a peak, the user can arrive at the destination at the right time. Since the navigation device provides information on the stop when the departure detection time is more than a predetermined time before the peak departure time, in addition to the route guidance to the destination in a time-saving situation, a suggestion for the stop An additional service can be provided. The “predetermined time” can be determined as appropriate depending on, for example, the spread of the number of departures.

  In the navigation device of the present invention, the information providing unit includes a time zone in which the number of departures includes a peak departure time, and the number of departures before the peak is greater than the number of departures at a time after the peak. If the departure detection time is included and the departure detection time is after a predetermined time before the peak departure time, route guidance giving priority to the required time to the destination may be performed. Good.

  With this configuration, appropriate route guidance can be performed so that the user can arrive at the destination at the same time as usual. The route guidance giving priority to the required time to the destination is, for example, the route searched by calculating the link cost with the weight of the required time parameter to the destination being higher than the parameters such as the toll road and the road width. It is to be. Thereby, a route with a short required time to the destination is searched. Also, it is possible to play music when the departure detection time is after a predetermined time before the peak departure time. Thereby, the driver who cannot afford time can be relaxed.

  In the navigation device of the present invention, the information providing unit obtains a departure time at which the number of departures is locally maximum from the distribution of the number of departures for each departure time, and the number of departures at the departure time includes the departure time. The departure time may be detected as the departure time of the peak when the average number of departures for each departure time within a predetermined range is a predetermined multiple or more.

  With this configuration, it is possible to appropriately detect the departure time at which the number of departures is peak. The “predetermined range” for obtaining the average number of departures may be set in advance, for example, 30 minutes before or after the departure time at which the number of departures is locally maximum, or the number of departures may be locally Alternatively, before and after the maximum departure time, a range may be sandwiched between portions where the number of departures decreases and the number of departures for each departure time becomes substantially constant. The value of “predetermined multiple” may be set in advance or may be adjusted by the driver.

  A navigation device according to another aspect of the present invention includes a departure history storage unit that stores a history of departure times for each departure place, and a departure that detects the departure time as a departure detection time when leaving a predetermined departure place. A time detection unit, and the number of departures for each departure time at the predetermined departure place is obtained from the information stored in the departure history storage unit; the departure time at which the number of departures exceeds a predetermined threshold; and the departure detection time And an information providing unit for determining information to be provided and providing the determined information.

  Departure times with a number of departures greater than a predetermined threshold are considered to be normal driver departure times, so it is possible to determine whether there is enough time by comparing departure detection times with departure times with a number of departures greater than a predetermined threshold. And determine the appropriate information to provide. The predetermined threshold value may be defined by, for example, the number of times for each departure time, or may be defined by the ratio (probability) of departure at that departure time.

  A navigation device according to another aspect of the present invention includes a departure history storage unit that stores a history of departure times for each departure place, and a departure that detects the departure time as a departure detection time when leaving a predetermined departure place. A time detection unit; and an information providing unit that determines an information to be provided by comparing an average of the departure times read from the departure history storage unit and the departure detection time, and provides the determined information.

  Since the average departure time in the past is considered as the normal departure time of the driver, it is possible to determine whether there is enough time by comparing the departure detection time with the average departure time, and to determine appropriate information to be provided .

  In the navigation device of the present invention, the departure history storage unit stores a history of the departure time in association with a predetermined situation at the time of departure, and the information providing unit, according to the predetermined situation at the time of departure, The number of departures for each departure time may be obtained from the information stored in the departure history storage unit.

  With this configuration, since the number of departures for each departure time is obtained using the departure history obtained in the same situation, it is possible to accurately estimate whether or not the situation has sufficient time. The “predetermined situation” is, for example, the day of the week, the weather, the presence or absence of a passenger, and the like.

  The navigation device of the present invention includes a destination determination unit that determines a destination, the departure history storage unit stores a history of the departure time for each destination, and the information providing unit includes the destination Depending on the destination determined by the determination unit, the number of departures for each departure time may be obtained from the information stored in the departure history storage unit.

  In this way, by obtaining the number of departures for each departure time according to the destination, it is possible to accurately estimate whether or not there is a time allowance.

  The navigation device of the present invention includes an estimated arrival time calculation unit that calculates an estimated arrival time at the destination based on a current position of the vehicle, and the information providing unit includes the estimated arrival time and the arrival at the destination. Information to be provided may be changed based on the desired time.

  With this configuration, it is possible to appropriately change the information to be provided according to the situation during the traveling of the vehicle. For example, if you depart more than a certain time before the peak departure time, you will be provided with information on the stopover location.If the estimated arrival time is later than the desired arrival time due to traffic congestion, the time required to reach the destination It is possible to change to prioritized route guidance information and provide route guidance in time for the desired arrival time.

  The navigation device according to another aspect of the present invention includes an arrival history storage unit that stores a history of arrival times for each destination, a destination determination unit that determines a destination, and the destination based on the current position of the vehicle. An estimated arrival time calculating unit that calculates an estimated arrival time, and obtaining the number of arrivals for each arrival time of the destination from the information stored in the arrival history storage unit, the distribution of the number of arrivals for each arrival time and the distribution An information providing unit that determines information to be provided based on the estimated arrival time and provides the determined information.

  In this way, the driver's behavior can be estimated by using the distribution of arrival times for each arrival time. For example, when the number of arrivals at a predetermined time on weekdays is large, it can be estimated that the driver has a habit of going to work at that time. By comparing the distribution of the number of arrivals for each past arrival time and the expected arrival time at the destination, the navigation device can It is possible to estimate whether or not there is a surplus situation, and it is possible to provide appropriate information according to the situation.

  In the navigation device of the present invention, the information providing unit obtains the arrival time at which the arrival frequency is a peak, and when the estimated arrival time is more than a predetermined time before the arrival time at the peak, You may provide information on a certain stop.

  In this way, when the estimated arrival time to the destination is more than a predetermined time before the peak arrival time, it provides information on the stopover, so in addition to route guidance to the destination in a time allowance An additional service called a stopover proposal can be provided. The “predetermined time” can be appropriately determined depending on, for example, the distribution of the number of arrivals.

  In the navigation device of the present invention, the information providing unit obtains the arrival time at which the arrival frequency is a peak, and when the expected arrival time is after a time that is a predetermined time before the arrival time of the peak, Route guidance giving priority to the required time may be performed.

  With this configuration, appropriate route guidance can be performed so that the user can arrive at the destination at the desired arrival time.

  In the navigation device of the present invention, the information providing unit obtains an arrival time at which the arrival number is locally maximum from the distribution of arrival times for each arrival time, and the arrival number at the arrival time includes the arrival time. The arrival time may be detected as the arrival time of the peak when the average arrival count for each arrival time in a predetermined range is equal to or more than a predetermined multiple.

  With this configuration, it is possible to appropriately detect the arrival time at which the number of arrivals is peak. The “predetermined range” for obtaining the average number of arrivals may be set in advance, for example, 30 minutes before and after the arrival time at which the number of arrivals is locally maximum, or the number of arrivals may be locally Alternatively, the number of arrivals may decrease before and after the maximum arrival time, and the range may be sandwiched between portions where the number of arrivals for each arrival time is substantially constant. The value of “predetermined multiple” may be set in advance or may be adjusted by the driver.

  The navigation device according to another aspect of the present invention includes an arrival history storage unit that stores a history of arrival times for each destination, a destination determination unit that determines a destination, and the destination based on the current position of the vehicle. An estimated arrival time calculating unit that calculates an estimated arrival time and an arrival count for each arrival time of the destination from the information stored in the arrival history storage unit, and the arrival count exceeds a predetermined threshold An information providing unit that compares the arrival time with the estimated arrival time to determine information to be provided and provides the determined information.

  An arrival time with the number of arrivals greater than a predetermined threshold is considered to be a normal arrival time at the destination, so there is time margin by comparing the expected arrival time with an arrival time with an arrival number greater than the predetermined threshold Can determine the appropriate information to provide. The predetermined threshold value may be defined by, for example, the number of times for each arrival time, or may be defined by the rate (probability) of arrival at the arrival time.

  The navigation device according to another aspect of the present invention includes an arrival history storage unit that stores a history of arrival times for each destination, a destination determination unit that determines a destination, and the destination based on the current position of the vehicle. An expected arrival time calculating unit for calculating an estimated arrival time, and an average of the arrival times read from the arrival history storage unit and the expected arrival time to determine information to be provided, and determine the determined information And an information providing unit to provide.

  Since the average arrival time in the past can be considered as the normal arrival time at the destination, it is possible to determine whether there is enough time by comparing the expected arrival time with the average arrival time, and to provide appropriate information to be provided. Can be determined.

  In the navigation device of the present invention, the arrival history storage unit stores a history of the arrival time in association with a predetermined situation at the time of departure or during travel, and the information providing unit is a predetermined at the time of departure or during travel. Depending on the situation, the number of arrivals for each arrival time may be obtained from the information stored in the arrival history storage unit.

  With this configuration, since the number of arrivals for each arrival time is obtained using arrival histories obtained in the same situation, it is possible to accurately estimate whether or not there is a time allowance.

  In the navigation device of the present invention, the arrival history storage unit stores a history of the arrival time for each departure place, and the information providing unit corresponds to the arrival history storage unit according to the position of the vehicle at the time of departure. The number of arrivals for each arrival time may be obtained from the information stored in.

  In this way, by obtaining the number of arrivals for each arrival time according to the departure place, it is possible to accurately estimate whether or not there is a time allowance.

  The navigation method of the present invention includes a step of storing a history of departure times in a departure history storage unit for each departure place, a step of detecting the departure time as a departure detection time when leaving a predetermined departure place, Obtaining the number of departures for each departure time at the predetermined departure place from the information stored in the departure history storage unit, and information to be provided based on the distribution of the number of departures for each departure time and the departure detection time Determining and providing the determined information.

  With this configuration, similar to the navigation device of the present invention, the navigation device can estimate whether or not there is a time allowance even if the driver does not consciously set the schedule such as the departure time. Appropriate information can be provided. Various configurations of the navigation device of the present invention can also be applied to the navigation method of the present invention.

  The navigation method according to another aspect of the present invention includes a step of storing a history of arrival times in an arrival history storage unit for each destination, a step of determining a destination, and the destination based on the current position of the vehicle. Calculating the estimated arrival time of the destination, obtaining the number of arrivals for each arrival time of the destination from the information stored in the arrival history storage unit, the distribution of the arrival times for each arrival time, and the estimated arrival time And determining the information to be provided based on the above and providing the determined information.

  With this configuration, similar to the navigation device of the present invention, the navigation device can estimate whether or not there is a time allowance without intentionally setting a schedule such as the arrival time by the driver. It is possible to provide appropriate information tailored to Various configurations of the navigation device of the present invention can also be applied to the navigation method of the present invention.

  The program of the present invention is a program for providing information, and stores a history of departure time in the departure history storage unit for each departure place in the navigation device, and a departure from a predetermined departure place. A step of detecting a departure time as a departure detection time, a step of obtaining the number of departures for each departure time from the information stored in the departure history storage unit, and a distribution of the number of departures for each departure time And determining the information to be provided based on the departure detection time and providing the determined information.

  With this configuration, similar to the navigation device of the present invention, the navigation device can estimate whether or not there is a time allowance even if the driver does not consciously set the schedule such as the departure time. Appropriate information can be provided. Various configurations of the navigation apparatus of the present invention can be applied to the program of the present invention.

  A program according to another aspect of the present invention is a program for providing information, and the navigation device stores a history of arrival times in an arrival history storage unit for each destination, and determines a destination. Calculating an estimated arrival time at the destination based on the current position of the vehicle; obtaining an arrival count for each arrival time from the information stored in the arrival history storage unit; The step of determining information to be provided based on the distribution of the number of arrivals for each arrival time and the estimated arrival time and the step of providing the determined information are executed.

  With this configuration, similar to the navigation device of the present invention, the navigation device can estimate whether or not there is a time allowance even if the driver does not consciously set a schedule such as arrival time. Appropriate information can be provided. Various configurations of the navigation apparatus of the present invention can be applied to the program of the present invention.

  According to the present invention, by comparing the distribution of the number of departures for each departure time and the time when the vehicle departs from the departure place, the navigation can be performed without the driver consciously setting the departure time or the like. The apparatus can estimate whether or not the situation has sufficient time, and can provide appropriate information according to the situation.

Embodiments of a navigation device according to the present invention will be described below with reference to the drawings.
(First embodiment)
FIG. 1 is a diagram showing a configuration of a navigation apparatus 1 according to the first embodiment of the present invention. The navigation device 1 includes a map information storage unit 10 that stores road map information, a vehicle position detection unit 14 that determines the current position of the vehicle, a switch 16 that receives an operation from a driver, a display 18 that displays a map, and the like. And a control unit 20 that performs route search and the like.

  The map information storage unit 10 stores various facility information such as tourist facilities and restaurants in addition to road information. The map information storage unit 10 may be configured by an external recording medium such as a CD-ROM, or may be configured by the memory of the navigation device 1. When the map information is stored in the memory of the navigation device 1, the latest map information can be downloaded via the network.

  The vehicle position detection unit 14 has a function of detecting the current position of the vehicle. As the vehicle position detector 14, for example, a geomagnetic sensor, a gyroscope, a distance sensor, a GPS receiver, a steering rotation sensor, a vehicle sensor for each rolling wheel, or the like can be used. The vehicle position detection unit 14 may be configured using some of these sensors. Since these sensors have errors of different properties, the current position of the vehicle can be detected with high accuracy by complementing with a plurality of sensors.

  The display 18 has a function of displaying a map around the current position and a route to the destination. The display 18 includes a touch panel, and receives input of information necessary for destination setting and the like.

  Next, the structure for the navigation apparatus 1 of this Embodiment to determine the appropriate information which should be provided is demonstrated. The navigation device 1 includes a departure history storage unit 12 that stores vehicle departure time data for each departure place.

  FIG. 2 is a diagram illustrating an example of data stored in the departure history storage unit 12. The departure history storage unit 12 stores departure date and departure time data for each departure place. When the vehicle departs from the departure place, the navigation device 1 acquires the departure place and time data and stores them in the departure history storage unit 12. In addition, after stopping at a signal wait etc. or resting in a parking area, the data when restarting driving | running | working of a vehicle are not memorize | stored. When the vehicle starts traveling, the navigation device 1 restarts the traveling, whether the vehicle has departed from the starting point or stopped on the way to the destination based on the time when the vehicle has stopped. And obtain data when departing from the departure place. In this example, the departure history storage unit 12 stores departure date data, but the departure date data is arbitrary and may be configured not to be stored. Further, for example, data other than those shown in FIG. 2 such as the weather and the presence / absence of a passenger may be stored in association with the departure time. For example, by storing the weather and the presence or absence of a passenger in association with the departure time, it is possible to extract a history of departure times in the same situation (weather and the presence or absence of a passenger).

  Next, the control unit 20 will be described. The control unit 20 includes a destination determination unit 22, a pattern analysis unit 24, a departure time detection unit 26, a guidance content determination unit 28, and a route guidance unit 30. The guidance content determination unit 28 determines the content of route guidance as information to be provided, and the route guidance unit 30 performs route guidance of the determined content. The guidance content determination unit 28 and the route guidance unit 30 correspond to the information providing unit of the present invention.

  The destination determination unit 22 has a function of determining a destination as a route guidance target. For example, the destination determination unit 22 may receive an input of a destination name, a telephone number, or the like from the driver, and may determine the destination based on the input information, or may be based on the current situation or past history. The destination may be determined by estimating the destination. In addition, the destination determination unit 22 may be configured to determine some destination candidates by estimating the destination, and to allow the driver to select the destination from them.

  The pattern analysis unit 24 has a function of obtaining a distribution of the number of departures for each departure time based on the data stored in the departure history storage unit 12 and analyzing what pattern the distribution is configured with.

  FIG. 3 is a diagram illustrating an example of obtaining the number of departures for each departure time. As shown in FIG. 3, the pattern analysis unit 24 takes 15 minutes as one section, and counts how many times each section has started. Although the section length is 15 minutes here, the section length for counting the number of departures is not limited to 15 minutes. The pattern analysis unit 24 obtains a distribution of the number of departures based on the number of departures for each departure time.

  FIG. 4A to FIG. 4C are diagrams illustrating examples of patterns used for analysis by the pattern analysis unit 24. 4A shows an example of “Pattern A”, FIG. 4B shows an example of “Pattern B”, and FIG. 4C shows an example of “Pattern C”.

  Pattern A (see FIG. 4A) includes a departure time t1 at which the number of departures reaches a peak, and the gradient before the departure time t1 is gentler than that after the departure time t1. That is, in pattern A, the number of departures is greater at the time before departure time t1 than at the time after departure time t1. It can be seen from pattern A that the driver often departs by the peak departure time. For example, when moving while adjusting in time for a predetermined time, the distribution of the number of departures is considered to have such a tendency. In the present embodiment, the departure time having the peak number of departures is a departure that has the largest number of departures in the predetermined time zone and the number of departures is three times or more than the average number of departures. It's time.

  Pattern B (see FIG. 4B) includes a departure time t2 at which the number of departures reaches a peak, and has substantially the same gradient before and after the departure time t2. It can be seen from the pattern B that the driver departs at a substantially fixed time.

  Pattern C (see FIG. 4C) is a pattern in which there is no departure time at which the number of departures reaches a peak. In the example shown in FIG. 4C, the departure time t3 at which the number of departures is maximum is included. However, the number of departures at the departure time t3 is not more than three times the average number of departures. The form of the navigation device 1 does not determine a peak. That is, if there is no departure time that is more than three times the average number of departures, pattern C is obtained. In the present embodiment, a threshold value that is three times or more the average number of departures is used as a threshold value for determining whether or not it is a peak, but this threshold value is not necessarily three times. This threshold may be adjusted by the driver. Note that although there is no description of an example having a peak of the number of departures and a slope that is larger before the peak time than after the peak time, this distribution is included in the pattern B in the present embodiment.

  In FIG. 5, an example of the analysis result by the pattern analysis part 24 is shown. As shown in FIG. 5, the pattern analysis unit 24 determines how the departure frequency distribution for each departure time is configured by the patterns A to C, that is, each of the departure times is the pattern A to the pattern C. Analyze whether this is true. As a result, it is possible to estimate whether or not the driver has enough time at each departure time.

  Again, with reference to FIG. 1, the structure of the control part 20 is demonstrated. The departure time detection unit 26 has a function of detecting the time when the vehicle departs from the departure place. In this specification, the time detected by the departure time detection unit 26 is referred to as “departure detection time”. When the vehicle starts traveling, the departure time detection unit 26 travels after the vehicle has departed from the departure place or temporarily stopped on the way to the destination, for example, based on the time when the vehicle has stopped. It is determined whether or not is resumed, and the time when departure from the departure place is obtained. When the navigation device 1 adopts a configuration in which the destination determination unit 22 receives a destination from the driver, the departure time detection unit 26 detects the departure time when the destination is input. Also good.

  The guidance content determination unit 28 determines the content of route guidance based on the distribution of the number of departures analyzed by the pattern analysis unit 24 and the departure detection time. In this embodiment, the guidance content determination unit 28 (i) provides route guidance for a stop based on the difference between the departure detection time and the peak time, and (ii) prioritizes the required time to the destination. It is determined whether to perform route guidance, (iii) to perform route guidance for a stopover place without limiting the number of stopovers to be presented.

  When the departure detection time is included in the pattern A distribution, the guidance content determination unit 28 determines the content of the route guidance as (i) or (ii). When the departure detection time is 30 minutes or more before the peak departure time, for example, as shown by the departure detection time D1 in FIG. 3, the guidance content determination unit 28 determines the content of the route guidance to be (i). If the departure detection time is later than 30 minutes before the peak departure time, as shown by the departure detection time D2 shown in FIG. 3, the content of the route guidance is determined as (ii). Here, it is determined whether or not the departure detection time is 30 minutes or more before the peak departure time, but this value is not limited to 30 minutes. For example, you may determine according to the grade of the gradient in the pattern A, etc.

  When the distribution of the number of departures in the time zone including the departure detection time is pattern B, the guidance content determination unit 28 determines the content of the route guidance to be (ii). When the distribution of the number of departures in the time zone including the departure detection time is the pattern C, the guidance content determination unit 28 determines the content of the route guidance to be (iii). The route guidance unit 30 performs route guidance with the content determined by the guidance content determination unit 28.

  FIG. 6 is a flowchart showing the route guidance operation performed in the navigation device 1 of the present embodiment. The navigation device 1 detects the time when the vehicle departs from the departure place (S10). Specifically, the navigation device 1 determines whether, for example, the time during which the vehicle has stopped exceeds a predetermined threshold (for example, 1 hour) when the vehicle travels, and if the predetermined time exceeds the predetermined threshold, To detect.

  Next, the navigation apparatus 1 reads the data of the past departure time from the departure history memory | storage part 12 (S12). In the navigation device 1, the vehicle position detection unit 14 detects the current position of the vehicle, and reads the departure time data of the departure point corresponding to the current position of the vehicle. When the departure time data is read, the departure time data on the same day of the week as the departure day may be read. Since the driver's behavior pattern is often different depending on the day of the week (especially on weekdays and holidays), it is possible to appropriately analyze the distribution of the number of departures by reading the departure time of the same day of the week as the departure day. Subsequently, the navigation device 1 analyzes how the distribution of the number of departures for each read departure time is configured by the patterns A to C (S14).

  FIG. 7 is a flowchart showing an operation of analyzing the distribution of the number of departures by the pattern analysis unit 24. First, the pattern analysis unit 24 searches for a peak candidate (a departure time at which the number of departures is locally maximum) from the distribution of the number of departures for each departure time (S30).

  Specifically, the pattern analysis unit 24 obtains a departure time that has a greater number of departures than the average number of departures for each departure time. In the present embodiment, when obtaining the distribution of the number of departures, the departure time is processed at intervals of 15 minutes. The average number of departures for each departure time can be obtained by dividing the total number of departures by the number of sections. Here, since the section length of the departure time for counting the number of departures is 15 minutes, the number of sections per day is 24 hours / 15 minutes = 96 sections. If the total data of the number of departures is 100 times, the average number of departures for each departure time is calculated as 100 (times) / 96 (sections) = 1.04 (times / sections). Therefore, the pattern analysis unit 24 searches for a section where the number of departures is two or more. Subsequently, the pattern analysis unit 24 detects the departure time having the largest number of departures within a range of 1 hour before and after the section having the number of departures higher than the average, and sets the departure time as the departure time of the peak candidate.

  Next, the pattern analysis unit 24 determines the time length (pattern width) of one pattern including the peak candidate (S32). The pattern analysis unit 24 recognizes the shape of a mountain that receives a peak candidate as one pattern. That is, the width from the bottom to the bottom of the mountain shape is obtained as the pattern width. Specifically, we look at the number of departures for each departure time from the peak candidate in time, and when the change in the number of departures is smaller than a predetermined threshold, the departure time is set as one of the patterns. The end. Similarly, the number of departures for each departure time is viewed from the peak candidate later in time, and when the change in the number of departures becomes smaller than a predetermined threshold, the departure time is set as the other end of the pattern. To do.

  The pattern analysis unit 24 obtains the average number of departures for each departure time in the pattern width, and determines whether or not the peak candidate departure number is three times or more than the average departure number (S34). As a result, when the number of departures of the peak candidate is three times or more than the average number of departures (YES in S34), the pattern analysis unit 24 determines that the peak candidate is the peak of the number of departures (S36). When the number of departures of the peak candidate is smaller than three times the average number of departures (NO in S34), the pattern analysis unit 24 determines that the peak candidate is not a peak (S38). Up to this point, the pattern analysis unit 24 calculates the peak. Note that the processing for calculating the peak shown here is an example, and the peak departure time may be obtained by another method.

  When a peak is detected in the distribution of the number of departures (S36), the pattern analysis unit 24 compares the gradient before the peak with the gradient after the peak (S40). When the gradient after the peak is larger (YES in S40), the pattern analysis unit 24 determines that the pattern is A (S42), and when the gradient before the peak is larger or the gradient before and after the peak is equal. (NO in S40), the pattern B is determined (S44). When it is determined that there is no peak in the distribution of the number of departures in the pattern width (S38), the pattern analysis unit 24 determines that the pattern is C (S46). The pattern analysis unit 24 performs the above processing on the entire distribution of the number of departures, thereby analyzing what pattern combination the distribution of the number of departures for each departure time is configured.

  FIG. 6 shows an example in which the pattern analysis process (S14) is performed after detecting the departure time of the vehicle (S10). However, the analysis of the distribution of the number of departures is performed in advance while the vehicle is stopped. You may keep it. Further, as in the present embodiment, when the pattern is analyzed after the departure time of the vehicle is detected, the distribution of the number of departures may be analyzed only in the vicinity of the departure time of the vehicle.

  Again, with reference to FIG. 6, operation | movement of the navigation apparatus 1 is demonstrated. After the analysis of the distribution of the number of departures is completed, the navigation device 1 determines in which pattern the departure detection time is included (S16). If the departure detection time is included in the pattern A, the navigation device 1 determines whether the departure detection time is a predetermined time or more before the peak departure time (S18). If the departure detection time is a predetermined time or more before the peak departure time (YES in S18), the navigation device 1 performs route guidance for the stop and the destination (S20). At this time, the navigation device 1 determines the number and contents of the stopovers to be presented based on the time difference between the departure detection time and the peak departure time. For example, when the time difference is 30 minutes, three places are presented as stopovers, and when the time difference is 60 minutes, five places are presented as stopovers. In addition, for example, if the time difference is 30 minutes, a stopover where a business can be completed in a relatively short time, such as a gas station or a convenience store, is presented. If the time difference is 60 minutes, a restaurant, etc. A stopover where you can relax like this. If the departure detection time is after a predetermined time before the peak departure time (NO in S16), the navigation device 1 performs a route search giving priority to the required time to the destination, and searches for the searched route. Guidance is performed (S22).

Further, in the determination of the type of the pattern including the departure detection time (S16), when it is determined that the departure detection time is included in the pattern B, the navigation device 1 gives priority to the required time to the destination. A route search is performed and guidance for the searched route is performed (S22). If the pattern including the departure detection time is determined as the pattern C in the determination of the type of pattern including the departure detection time (S16), the navigation device 1 performs route guidance for the stop and the destination (S24). . In this case, unlike the case of the pattern A, the navigation device 1 does not limit the number of stops to be presented and the contents thereof.
The configuration and operation of the navigation device 1 according to the first embodiment have been described above.

  In the navigation device 1 according to the first embodiment, the driver consciously determines the content of the route guidance based on the distribution of the number of departures obtained from the departure time history and the time when the vehicle departs. Even without setting a schedule or the like, it is possible to estimate whether there is a time allowance and perform appropriate route guidance.

  Specifically, when the departure detection time is included in the pattern A and the departure detection time is a predetermined time or more before the peak, route guidance to the stop and the destination is performed. In this case, it is estimated that the driver has departed earlier than the usual departure time, and there is time to spare, so additional services can be provided to the driver by providing route guidance not only at the destination but also at the stop. Can be provided. If the departure detection time is included in the pattern A and the departure detection time is after a predetermined time before the peak, route guidance giving priority to the required time to the destination is performed. In this case, the driver departs at a time approximately the same as or later than the usual departure time, and it is expected that there is no time margin, so there is little possibility of stopping at the stop. The navigation device 1 can provide route guidance that meets the needs of the driver by not providing the stop-by location and guiding the route with a short required time.

(Second Embodiment)
Next, a navigation device according to a second embodiment of the present invention will be described. The basic configuration of the navigation device of the second embodiment is the same as that of the navigation device 1 of the first embodiment, but the departure history storage unit 12 stores departure times for each destination. Is different.

  FIG. 8 is a diagram illustrating an example of data stored in the departure history storage unit 12 included in the navigation device according to the second embodiment. As shown in FIG. 8, the departure date and departure time data are stored in association with the departure place and the destination. As a method for storing the departure time data in association with the destination, for example, the following method can be employed. For example, when a destination is set by the navigation device, the departure time is stored in association with the set destination and departure point. In addition, for example, the navigation device acquires the departure time when the vehicle departs from the departure place, temporarily holds the departure time data until reaching the destination, and when the vehicle arrives at the destination The departure time data is stored in the departure history storage unit 12 in association with the departure place and the destination.

  The route guidance operation of the navigation device of the second embodiment is basically the same as that of the navigation device 1 of the first embodiment. However, unlike the navigation device 1 of the first embodiment, the navigation device of the second embodiment has a departure time corresponding to the departure point and the destination of the vehicle in step S12 of reading the corresponding departure time history. Read data. The operation of analyzing the read departure time data (S14), determining the content of the route guidance according to which pattern the departure detection time is included in, and performing the route guidance of the determined content is performed in the first embodiment. It is the same as the navigation apparatus 1 of the form.

  The navigation device according to the second embodiment analyzes whether the departure frequency distribution pattern uses the departure time data corresponding to not only the departure point but also the destination, thereby determining whether or not there is a time allowance. Can be accurately estimated.

(Third embodiment)
FIG. 9 is a diagram showing a configuration of the navigation device 3 according to the third embodiment of the present invention. The basic configuration of the navigation device 3 of the third embodiment is the same as that of the navigation device 1 of the first embodiment, but further includes a desired arrival time setting unit 32 and an expected arrival time calculation unit 34. Yes. In the third embodiment, the guidance content determination unit 28 performs a process of determining the content of route guidance while the vehicle is traveling. Hereinafter, the navigation apparatus 3 according to the third embodiment will be described focusing on the configuration different from that of the first embodiment.

  The desired arrival time setting unit 32 receives an input of the desired arrival time from the driver. For example, a screen that prompts the user to input the desired arrival time is displayed on the display 18, and the input of the desired arrival time is accepted through the touch panel.

  The estimated arrival time calculation unit 34 obtains an estimated arrival time at the destination based on the current position of the vehicle and the destination. The estimated arrival time calculation unit 34 may obtain the estimated arrival time by, for example, dividing the distance from the current position to the destination by the legal speed of the route, or by adding traffic information obtained from the VICS, The estimated arrival time may be obtained.

  At the time of departure, the guidance content determination unit 28 compares the desired arrival time with the estimated arrival time while the vehicle is traveling, in addition to the process of determining the content of the route guidance based on the distribution of the number of departures and the departure detection time. To determine the contents of route guidance. Specifically, when the estimated arrival time is close to the desired arrival time or exceeds the desired arrival time, the guidance content determination unit 28 converts the content of the route guidance into route guidance giving priority to the required time to the destination. decide. Conversely, when the estimated arrival time is a predetermined time or more before the desired arrival time, the guidance content determination unit 28 determines the content of the route guidance to be route guidance for presenting a stopover.

  The navigation device 3 according to the third embodiment determines the content of the route guidance based on the desired arrival time and the expected arrival time while the vehicle is traveling. For example, according to the traveling condition such as traffic congestion Thus, appropriate route guidance can be performed.

(Fourth embodiment)
FIG. 10 is a diagram illustrating a configuration of the navigation device 4 according to the fourth embodiment. The navigation devices of the first to third embodiments are configured to determine the contents of route guidance using the history of departure times, but the navigation device 4 of the fourth embodiment is directed to the destination The contents of route guidance are determined using the history of arrival times.

  The navigation device 4 includes an arrival history storage unit 36 instead of the departure history storage unit 12. The control unit 20 of the navigation device 4 includes an estimated arrival time calculation unit 34 that calculates an estimated arrival time based on the current position of the vehicle and the destination. Note that the estimated arrival time calculation unit 34 has the same configuration as the estimated arrival time calculation unit 34 described in the third embodiment.

  FIG. 11 is a diagram illustrating an example of data stored in the arrival history storage unit 36. As shown in FIG. 11, the arrival history storage unit 36 stores arrival date and arrival time data for each destination. The arrival history storage unit 36 may store data other than those shown in FIG. 11 such as the departure place, weather, and the presence or absence of a passenger in association with the arrival time. For example, it is possible to extract a history of arrival times in the same situation (departure place, weather, presence / absence of passengers) by storing the departure place, weather, and the presence / absence of passengers in association with the arrival time. .

  The navigation device 4 stores arrival time data in the arrival history storage unit 36 when the vehicle arrives at the destination. In addition, when the vehicle stops due to a signal or the like or temporarily stops in a parking area or the like, the arrival time data is not acquired because the stop position is not the destination. The above-described technique of Patent Document 1 can be applied to determine whether or not the stop of the vehicle is a destination. The navigation device 4 determines whether the vehicle has stopped at the destination or the stoppage, and obtains arrival time data when it arrives at the destination.

  The pattern analysis unit 24 of the navigation device 4 has a function of obtaining the number of arrivals for each arrival time based on the data stored in the arrival history storage unit 36 and analyzing the pattern of arrival frequency distribution. Similar to the first embodiment, the pattern analysis unit 24 obtains the distribution of arrival times for each arrival time, and finds the arrival time at the peak of the arrival times from the distribution. The guidance content determination unit 28 of the navigation device determines the content of the route guidance based on the arrival time of the peak obtained by the pattern analysis unit 24 and the estimated arrival time calculated by the estimated arrival time calculation unit 34. . When the estimated arrival time is a predetermined time or more before the peak arrival time obtained by the pattern analysis unit 24, the guidance content determination unit 28 provides route guidance for the stopover in addition to the destination. When the estimated arrival time is after a predetermined time before the peak arrival time, the guidance content determination unit 28 performs route guidance giving priority to the required time to the destination.

FIG. 12 is a flowchart illustrating the operation of the navigation device according to the fourth embodiment.
The navigation device 4 determines the destination (S50). The navigation device 4 may prompt the driver to input a destination, determine the destination based on the input information, or determine the destination based on the driver's preference, the day of the week, etc. May be.

  Next, the navigation apparatus 4 reads the data of the past arrival time to the destination from the arrival history memory | storage part 36 (S52). When reading arrival time data, arrival time data on the same day of the week as the arrival day may be read. Since the driver's behavior pattern is often different depending on the day of the week (especially on weekdays and holidays), the arrival time pattern can be appropriately analyzed by reading the arrival time of the same day as the departure day. . Subsequently, the navigation device 4 analyzes the read arrival time data (S54). In the present embodiment, the peak arrival time is detected from the distribution of the number of arrivals for each arrival time. The method of detecting the arrival time of the peak is performed by the same method as the detection of the departure time of the peak described in the first embodiment.

  The navigation device 4 determines whether or not there is a peak in the arrival frequency distribution pattern based on the analysis result of the arrival frequency distribution (S56). If the pattern including the estimated arrival time has a peak (YES in S56), the navigation device 4 calculates the estimated arrival time (S58). The navigation device 4 determines whether or not the estimated arrival time is a predetermined time or more before the peak time (S60). If the estimated arrival time is more than a predetermined time before the peak arrival time (YES in S60), the navigation device 4 provides route guidance for the stop and the destination (S62). At this time, similarly to the first embodiment, the navigation device 4 determines the number and contents of stopovers to be presented based on the time difference between the estimated arrival time and the peak. If the departure time is after a predetermined time before the peak departure time (NO in S60), the navigation device 4 performs a route search giving priority to the required time to the destination, and guides the searched route. (S64). Thereafter, the navigation device 4 determines whether or not to end the route guidance (S66). For example, when the vehicle arrives at the destination, it is determined that the route guidance is to be ended, and when the current position of the vehicle is away from the destination, it is determined that the route guidance is not to be ended. If it is determined that the route guidance is not to be ended (NO in S66), the navigation device 4 calculates an estimated arrival time (S58) and performs an operation of determining the content of the route guidance.

In addition, in the determination of whether or not the pattern including the arrival time includes a peak (S56), if it is determined that the pattern of the distribution of arrival times does not include the peak (NO in S56), the navigation device 4 Route guidance for the stopover and destination is performed (S68). In this case, unlike the case of the pattern A, the navigation device 4 does not limit the number of stops to be presented.
The configuration and operation of the navigation device 4 according to the fourth embodiment have been described above.

  The navigation device 4 of the fourth embodiment can perform appropriate route guidance by determining the contents of route guidance based on the distribution of the number of arrivals obtained from the history of arrival times and the expected arrival time. it can. Specifically, when the estimated arrival time is more than a predetermined time before the peak arrival time, route guidance to the stop and the destination is performed. In this case, since the driver is expected to arrive earlier than the normal arrival time, additional services can be provided to the driver by performing route guidance not only at the destination but also at the stop. When the arrival time is later than a predetermined time before the peak, route guidance giving priority to the required time to the destination is performed. In this case, the driver is expected to arrive at a time approximately the same as or later than the normal arrival time, so there is little possibility of stopping at the stop. The navigation device 4 can provide route guidance that meets the needs of the driver by not providing the stop-by location and guiding the route with a short required time. In addition, when there is no peak in the distribution pattern of the number of arrival times, it is considered that the arrival may be made at any time. Therefore, route guidance for presenting a stop is performed without setting a limit on the number of stops.

  Further, the navigation device 4 of the fourth embodiment repeatedly calculates the estimated arrival time until the route guidance is completed, and compares it with the peak of the arrival time, so that it responds to changes in the situation during traveling, etc. Thus, the route guidance can be switched to an appropriate content when the estimated arrival time is advanced or delayed.

  The navigation apparatus and the navigation method of the present invention have been described in detail with reference to the embodiment, but the present invention is not limited to the above-described embodiment.

  In the above embodiment, the navigation device and the navigation method have been described. However, a program for executing each step of the above navigation method is also included in the scope of the present invention.

  In the embodiment described above, route guidance information has been described as an example of information provision, but the present invention can also change the content of information to be provided, such as news and music. For example, information that should be provided, such as providing news if it is determined that there is time, and playing music to relax the driver if it is determined that time is not available The contents of may be changed.

  In the above-described first embodiment, the example of analyzing the distribution of the number of departures using the patterns A to C has been described. However, in addition to the patterns A to C shown in the above-described embodiment, Various patterns are possible. As for the method of analyzing the distribution of the number of departures, for example, a model having a typical shape of patterns A to C may be prepared in advance, and the pattern may be analyzed based on the similarity with the model. .

  In the second embodiment described above, it is determined whether there is a peak in the distribution of the number of arrivals for each arrival time, and if there is a peak, the arrival time of the peak is compared with the expected arrival time to determine the route. Although the example of determining the content of the guidance has been described, in the second embodiment as well, as in the first embodiment, the distribution of the number of arrivals is analyzed according to what pattern is configured, and more The details of detailed route guidance may be determined.

  In the above-described embodiment, the method for obtaining the peak departure time and arrival time is described by comparison with the average number of departures. However, the peak departure time and the like are obtained by a method different from the above method. May be. As an example, the following method is also conceivable. For example, an upper limit (for example, 100) of the number of data stored in the departure history storage unit is determined, and when the upper limit is exceeded, old data is deleted. The navigation device may determine a peak when the number of departures for each departure time exceeds a predetermined number (for example, 10 times).

  In the above-described embodiment, the distribution is analyzed using the peak of the number of departures or arrivals for each time, but the present invention can also perform the analysis without using the peak. For example, the content of information provision may be changed by extracting a departure time at which the number of departures exceeds a predetermined threshold and comparing the departure time with the departure detection time. Further, the content of information provision may be changed by calculating an average value of past departure times and comparing the average departure time with the departure detection time.

  According to the present invention, there is an effect that it is possible to perform appropriate route guidance in accordance with the driver's time margin without the driver consciously setting the departure time, for example, in the vehicle This is useful as an on-board navigation device.

It is a figure which shows the structure of the navigation apparatus of 1st Embodiment. It is a figure which shows the example of the data memorize | stored in the departure time memory | storage part. It is a figure which shows the example which calculated | required the frequency | count of departure according to departure time. (A) It is a figure which shows the example of the pattern A of the distribution of the frequency | count of departure. (B) It is a figure which shows the example of the pattern B of the distribution of the frequency | count of departure. (C) It is a figure which shows the example of the pattern C of the distribution of the frequency | count of departure. It is a figure which shows the example of the result of having analyzed distribution of the frequency | count of departure. It is a figure which shows the operation | movement of the route guidance by the navigation apparatus of 1st Embodiment. It is a figure which shows the operation | movement of the analysis of the distribution pattern of the frequency | count of departure. It is a figure which shows the example of the data memorize | stored in the departure time memory | storage part of 2nd Embodiment. It is a figure which shows the structure of the navigation apparatus of 3rd Embodiment. It is a figure which shows the structure of the navigation apparatus of 4th Embodiment. It is a figure which shows the example of the data memorize | stored in the arrival time memory | storage part. It is a figure which shows the operation | movement of the route guidance by the navigation apparatus of 4th Embodiment.

Explanation of symbols

1, 3, 4 Navigation device 10 Map information storage unit 12 Departure history storage unit 14 Vehicle position detection unit 16 Switch 18 Display 20 Control unit 22 Destination determination unit 24 Pattern analysis unit 26 Departure time detection unit 28 Guidance content determination unit 30 Route Guide unit 32 Desired arrival time setting unit 34 Expected arrival time calculation unit 36 Arrival history storage unit

Claims (21)

A departure history storage unit that stores a history of departure times for each departure place,
A departure time detection unit for detecting the departure time as a departure detection time when leaving a predetermined departure place;
The number of departures for each departure time at the predetermined departure place is obtained from the information stored in the departure history storage unit, and information to be provided is determined based on the distribution of the number of departures for each departure time and the departure detection time And an information providing unit for providing the determined information;
A navigation device comprising: The information providing unit
The departure detection time is included in a time zone in which the number of departures includes the departure time of the peak and the number of departures before the peak is greater than the number of departures after the peak. The navigation device according to claim 1, wherein when the departure detection time is a predetermined time or more before the departure time of the peak, information on a stop-by place on the way to the destination is provided. The information providing unit
The departure detection time is included in a time zone in which the number of departures includes the departure time of the peak and the number of departures before the peak is greater than the number of departures after the peak. The navigation device according to claim 1 or 2, wherein when the departure detection time is after a time that is a predetermined time before the departure time of the peak, route guidance giving priority to a required time to the destination is performed.   The information providing unit obtains a departure time at which the number of departures is locally maximized from a distribution of the number of departures for each departure time, and the number of departures at the departure time is for each departure time within a predetermined range including the departure time. 4. The navigation device according to claim 2, wherein the departure time is detected as the departure time of the peak when the average number of departures is equal to or more than a predetermined multiple. A departure history storage unit that stores a history of departure times for each departure place,
A departure time detection unit that detects the departure time as a departure detection time when leaving a predetermined departure place;
Obtaining the number of departures for each departure time at the predetermined departure place from the information stored in the departure history storage unit, providing the departure time when the departure number exceeds a predetermined threshold and the departure detection time An information provider that determines information to be provided and provides the determined information;
A navigation device comprising: A departure history storage unit that stores a history of departure times for each departure place,
A departure time detection unit that detects the departure time as a departure detection time when leaving a predetermined departure place;
An information providing unit for determining the information to be provided by comparing the departure detection time with an average of the departure times read from the departure history storage unit, and providing the determined information;
A navigation device comprising: The departure history storage unit stores a history of the departure time in association with a predetermined situation at the time of departure,
The navigation device according to any one of claims 1 to 6, wherein the information providing unit obtains the number of departures for each departure time from information stored in the departure history storage unit according to a predetermined situation at the time of departure. A destination determination unit that determines the destination
The departure history storage unit stores a history of the departure time for each destination,
The said information provision part calculates | requires the frequency | count of departure for every departure time from the information memorize | stored in the said departure history memory | storage part according to the destination determined in the said destination determination part. The navigation device described. An estimated arrival time calculation unit for calculating an estimated arrival time at the destination based on the current position of the vehicle;
The navigation device according to claim 8, wherein the information providing unit changes information to be provided based on the estimated arrival time and a desired arrival time at the destination. An arrival history storage unit storing a history of arrival times for each destination;
A destination determination unit for determining a destination;
An estimated arrival time calculation unit for calculating an estimated arrival time at the destination based on the current position of the vehicle;
Obtain the number of arrivals for each arrival time of the destination from the information stored in the arrival history storage unit, determine the information to be provided based on the distribution of the number of arrivals for each arrival time and the expected arrival time, An information providing unit for providing the determined information;
A navigation device comprising: The information providing unit
11. The arrival time at the peak of the arrival count is obtained, and when the estimated arrival time is more than a predetermined time before the arrival time at the peak, information on a stop-in place on the way to the destination is provided. Navigation device. The information providing unit
11. A route guidance giving priority to a required time to a destination is performed when the arrival time of the peak is obtained and the estimated arrival time is after a predetermined time before the arrival time of the peak. Or the navigation apparatus of 11.   The information providing unit obtains an arrival time at which the arrival number is locally maximum from the distribution of arrival times for each arrival time, and the arrival number at the arrival time is for each arrival time in a predetermined range including the arrival time. The navigation device according to claim 11 or 12, wherein the arrival time is detected as the arrival time of the peak when the average number of arrivals is equal to or greater than a predetermined multiple. An arrival history storage unit storing a history of arrival times for each destination;
A destination determination unit for determining a destination;
An estimated arrival time calculation unit for calculating an estimated arrival time at the destination based on the current position of the vehicle;
The number of arrivals for each arrival time of the destination should be obtained from the information stored in the arrival history storage unit, and the arrival time when the arrival number exceeds a predetermined threshold should be compared with the expected arrival time. An information providing unit for determining information and providing the determined information;
A navigation device comprising: An arrival history storage unit storing a history of arrival times for each destination;
A destination determination unit for determining a destination;
An estimated arrival time calculation unit for calculating an estimated arrival time at the destination based on the current position of the vehicle;
An information providing unit that determines the information to be provided by comparing the average arrival time read from the arrival history storage unit with the estimated arrival time, and provides the determined information;
A navigation device comprising: The arrival history storage unit stores a history of the arrival time in association with a predetermined situation at the time of departure or running,
The navigation according to any one of claims 10 to 15, wherein the information providing unit obtains the number of arrivals for each arrival time from the information stored in the arrival history storage unit according to a predetermined situation at the time of departure or traveling. apparatus. The arrival history storage unit stores a history of the arrival time for each departure place,
The navigation device according to any one of claims 10 to 16, wherein the information providing unit obtains the number of arrivals for each arrival time from information stored in the arrival history storage unit according to a position of the vehicle at the time of departure. Storing a history of departure times in a departure history storage unit for each departure place;
Detecting the departure time as a departure detection time when leaving a predetermined departure place;
Obtaining the number of departures for each departure time at the predetermined departure place from the information stored in the departure history storage unit;
Determining information to be provided based on a distribution of the number of departures for each departure time and the departure detection time;
Providing the determined information;
A navigation method comprising: Storing a history of arrival times in the arrival history storage unit for each destination;
Determining the destination,
Calculating an estimated arrival time at the destination based on the current position of the vehicle;
Obtaining the number of arrivals for each arrival time of the destination from the information stored in the arrival history storage unit;
Determining information to be provided based on the distribution of arrival times for each arrival time and the expected arrival time;
Providing the determined information;
A navigation method comprising: It is a program for providing information, and in the navigation device,
Storing a history of departure times in a departure history storage unit for each departure place;
Detecting the departure time as a departure detection time when leaving a predetermined departure place;
Obtaining the number of departures for each departure time at the predetermined departure place from the information stored in the departure history storage unit;
Determining information to be provided based on a distribution of the number of departures for each departure time and the departure detection time;
Providing the determined information;
A program that executes It is a program for providing information, and in the navigation device,
Storing a history of arrival times in the arrival history storage unit for each destination;
Determining the destination,
Calculating an estimated arrival time at the destination based on the current position of the vehicle;
Obtaining the number of arrivals for each arrival time of the destination from the information stored in the arrival history storage unit;
Determining information to be provided based on the distribution of arrival times for each arrival time and the expected arrival time;
Providing the determined information;
A program that executes

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