JP2019016318A - Departure guiding system, departure guiding terminal, and departure guiding program - Google Patents

Abstract

To provide a technique for increasing the possibility of a guidance being given to a user before a required time.SOLUTION: A departure guiding system comprises: a departure time acquisition unit that acquires a normal departure time for a route ordinarily used by each user; a required time difference acquisition unit that acquires a required time difference, which is a difference between a current time required for the route and a usual required time on the basis of a current traffic volume and a usual traffic volume; and a departure guiding unit that preferentially gives a guidance regarding departure starting with a user for which the time obtained by subtracting the required time difference from the departure time is shorter.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a departure guidance system, a departure guidance terminal, and a departure guidance program.

  2. Description of the Related Art Conventionally, a technique for providing guidance regarding departure to a user is known. For example, Patent Document 1 discloses a configuration for calculating and notifying a recommended departure time based on a required time from a departure place to a destination and an estimated arrival time.

JP 2012-242301 A

In the prior art, a configuration for controlling the guidance order when guiding a plurality of users is not disclosed. In order to arrive at the destination by the scheduled arrival time, it is necessary to depart at a time that is in time even if the required time from the departure point to the destination is spent, and it is preferable that the guidance is performed before that time. However, in the case where guidance regarding departures is given to a plurality of guidance destinations, in a configuration in which the guidance order is not controlled (for example, a configuration in which guidance is performed in the order in which queues are generated), guidance may be performed by the time when guidance is required. There may be cases where it cannot be done.
The present invention has been made in view of the above-described problems, and an object thereof is to increase the possibility that guidance is provided to a user by a required time.

  In order to achieve the above object, the departure guidance system includes a departure time acquisition unit that acquires a normal departure time of a route that a user uses on a daily basis for each user, a current traffic amount indicating a current traffic amount, A required time difference acquisition unit that acquires the required time difference that is the difference between the current required time of the route and the normal required time based on the normal traffic that indicates normal traffic, and the time obtained by subtracting the required time difference from the departure time And a departure guide section that provides guidance on departure with priority from the early user.

  In order to achieve the above-mentioned object, the departure guidance program shows the current traffic amount, a departure time acquisition unit that acquires a normal departure time of a route that the user uses on a daily basis for each user. A required time difference acquisition unit that acquires a required time difference that is the difference between the current required time of the route and the normal required time based on the current traffic and the normal traffic indicating the normal traffic. It is made to function as a departure guidance part which gives guidance about departure with priority from the user whose time is reduced.

  In other words, the required time difference is the difference between the current required time and the normal required time on the route (current required time-normal required time). In the current traffic situation, the required time difference takes more time than usual. (If the required time difference is positive). Accordingly, if the user departs at a time obtained by subtracting the required time difference from the normal departure time, it is estimated that the user can arrive at the destination just in time for the normal arrival time. When there are a plurality of users and the time obtained by subtracting the required time difference from the normal departure time is compared for each user, the earlier the time, the less time is required for departure. Therefore, if the user is guided preferentially from a user whose time is earlier, the possibility that the user will be guided by the required time can be increased.

It is a block diagram which shows a departure guidance system and a departure guidance terminal. FIG. 2A is a flowchart of the departure time acquisition process, and FIG. 2B is a flowchart of the required time difference acquisition process. It is a flowchart of a departure guidance process.

Here, embodiments of the present invention will be described in the following order.
(1) Configuration of departure guidance system:
(2) Configuration of departure guidance terminal:
(3) Departure time acquisition processing:
(4) Required time difference acquisition processing:
(5) Departure guidance processing:
(6) Other embodiments:

(1) Configuration of departure guidance system:
FIG. 1 is a block diagram showing an embodiment of the present invention. The departure guidance system 10 according to the present embodiment is a system for exchanging information with a plurality of departure guidance terminals 100 used for a plurality of users. The departure guidance system 10 includes a control unit 20 including a CPU, RAM, ROM, and the like, a recording medium 30, and a communication unit 40. The communication unit 40 is a device for performing wireless communication with other systems (in the present embodiment, the departure guide terminal 100 and the traffic information management system 120).

  That is, the control part 20 can communicate with another system at arbitrary timings by sending / receiving arbitrary information by controlling the communication part 40. The traffic information management system 120 is a system that manages traffic information indicating the average travel time for each road section having an intersection (node) as an end point. The traffic information management system 120 generates a normal traffic volume which is a traffic volume statistic of each road section and a current traffic volume indicating the current traffic volume of each road section, and records them on a recording medium (not shown).

  Various types of information are recorded on the recording medium 30. That is, when information indicating the route for each user and the departure time on the route is transmitted from the departure guide terminal 100, the information is recorded on the recording medium 30 as the departure time information 30a. When normal traffic information for each road section or information indicating the current traffic volume is transmitted from the traffic information management system 120, it is recorded in the recording medium 30 as traffic volume information 30b.

  In the present embodiment, the roads constituting the map are defined by being divided into a plurality of road sections. That is, the map information includes node data indicating the position of the node corresponding to the end point of the road section, shape interpolation point data indicating the position of the shape interpolation point for specifying the shape of the road between the nodes, and the connection between the nodes. It includes link data to indicate, facility data indicating the location and attribute of the facility, and the like. Further, the link data is associated with information indicating the cost for each road section and a road section ID for specifying the road section.

  Route search by the route search system 110 described later and map display by the departure guidance terminal 100 are performed based on the map information. For this reason, the departure time information 30a and the traffic information 30b are also expressed using definitions equivalent to the definitions of the road sections in the map information. The departure time information 30a indicates a departure time and a route of the route, and the route is expressed by a road section ID of a road section constituting the route. The traffic information 30b is information in which the current average travel time and the normal average travel time are associated with the road section ID.

  The control unit 20 can execute a program recorded in the ROM or the recording medium 30. The departure guidance system 10 is a system that provides guidance regarding departure to the user through the departure guidance terminal 100, and the control unit 20 can execute a departure guidance program 21 in order to provide guidance regarding departure. The departure guidance program 21 includes a departure time acquisition unit 21a, a required time difference acquisition unit 21b, and a departure guidance unit 21c.

  The departure time acquisition unit 21a is a program module that causes the control unit 20 to execute a function of acquiring, for each user, a normal departure time of a route that the user uses on a daily basis. In the present embodiment, the user of the departure guide terminal 100 can register the route used on a daily basis and the normal departure time of the route in the departure guide terminal 100. When registration is performed, information indicating a route and a departure time is transmitted from the departure guide terminal 100. Therefore, the control unit 20 acquires the information by controlling the communication unit 40 by the function of the departure time acquisition unit 21a, and records the information on the recording medium 30 as the departure time information 30a. In the present embodiment, the departure guidance terminal 100 is assigned a terminal ID, and the departure time information 30a includes the terminal ID of the departure guidance terminal 100 that is the transmission source of the departure time information 30a. In the present embodiment, the departure time information 30a recorded for each terminal ID is thus regarded as departure time information 30a recorded for each user.

  The required time difference acquisition unit 21b calculates a required time difference that is a difference between the current required time of the route and the normal required time based on the current traffic indicating the current traffic and the normal traffic indicating the normal traffic. It is a program module that causes the control unit 20 to realize the function to be acquired. That is, the control unit 20 controls the communication unit 40 by the function of the required time difference acquisition unit 21 b to acquire the traffic volume information 30 b from the traffic information management system 120 and record it in the recording medium 30. Moreover, the control part 20 specifies the route | root for every user with the function of the required time difference acquisition part 21b, and refers to the traffic volume information 30b about each user's route | route.

  Further, the control unit 20 executes, for each user's route, a process of acquiring the total average travel time of the road sections constituting the route as the required time based on both the current traffic volume and the normal traffic volume, Get current duration and normal duration. And the control part 20 acquires a required time difference by subtracting a normal required time from the present required time of each user's path | route. Since the required time difference is obtained by subtracting the normal required time from the current required time, the current state is more congested than the normal state as the required time difference is positive and the value is large. If the required time difference is negative, the current state is vacant than the normal state.

  The departure guide unit 21c is a program module that causes the control unit 20 to implement a function of giving guidance regarding departure with priority from a user whose time difference is reduced from the normal departure time of the route. That is, the control unit 20 performs a process of subtracting the required time difference acquired by the function of the required time difference acquisition unit 21b from the departure time acquired by the function of the departure time acquisition unit 21a by the function of the departure guide unit 21c. Run every time.

  As described above, when the required time difference is positive, the current state is more congested than the normal state as the value of the required time difference increases. In the current traffic situation, the required time difference takes more time than usual. Therefore, it is presumed that the user whose time required by subtracting the required time difference from the normal departure time is earlier, the less time is left until the time when the user needs to leave in time for the normal arrival time. Therefore, in the present embodiment, the control unit 20 gives higher priority to a user whose time is shorter than the normal departure time of the route.

  And the control part 20 performs guidance regarding a departure in order of priority by the function of the departure guidance part 21c. That is, the control unit 20 generates guidance information regarding departure, controls the communication unit 40, and transmits the guidance information to the departure guidance terminal 100 of the terminal ID used by the user with the highest priority. When the departure guidance terminal 100 acquires the guidance information, the departure guidance terminal 100 provides guidance regarding departure based on the guidance information. When the transmission of the guidance information ends, the control unit 20 excludes the last transmitted user from the transmission target, and transmits a process of transmitting the guidance information to the user with the highest priority among the remaining users. Repeat until the target user no longer exists.

  The guidance regarding departure may be any guidance that allows the user to depart in time for the arrival time at a normal destination based on the guidance, and various guidance can be adopted. For example, when the required time difference is positive and is larger than the first threshold, it is guided that it is more crowded than usual, and when it is larger than the second threshold (> first threshold), it is guided that there is congestion, When the required time difference is negative, it is possible to adopt a configuration that guides that the time is vacant than usual. In addition, guidance that prompts departure may be given, the degree of urgency that requires departure may be guided according to the magnitude of the required time difference, the required time difference, etc. may be guided, and various modes Can be adopted.

  According to the above configuration, it is possible to increase the possibility that guidance is given preferentially from the user who has little time until the time to depart, and use by the time when it is necessary to depart to be in time for the destination It is possible to increase the possibility that guidance will be given to the person.

(2) Configuration of departure guidance terminal:
The departure guidance terminal 100 is a terminal used by a user who travels in a vehicle, and in the present embodiment, is a portable terminal carried by the user. The departure guide terminal 100 includes a control unit 200 including a CPU, RAM, ROM, and the like, a communication unit 400, and a user I / F unit 410. The communication unit 400 is a device for performing wireless communication with other devices (in the present embodiment, the departure guidance system 10 and the route search system 110). That is, the control unit 200 can communicate with the departure guidance system 10 and the route search system 110 at any timing by controlling the communication unit 400 to exchange arbitrary information. The user I / F unit 410 is an interface unit for inputting user instructions and providing various types of information to the user, and includes a touch panel display, a switch, a speaker, and the like (not shown).

  The control unit 200 can execute a program recorded in a ROM or a recording medium (not shown). In this embodiment, the guidance output program 210 can be executed as this program. In the present embodiment, the control unit 200 can perform route guidance and guide traffic information for a route guidance target road.

  In order to perform such guidance, the guidance output program 210 includes a route guidance unit 210a, a guidance information acquisition unit 210b, and a guidance output unit 210c. The route guidance unit 210a is a program module that causes the control unit 200 to realize a function of performing route guidance. That is, the control unit 200 acquires the current location based on radio waves from GPS satellites acquired by a GPS receiving unit (not shown). Further, the control unit 200 acquires a destination based on a user input to the input unit of the user I / F unit 410 and transmits the current location and the destination to the route search system 110 via the communication unit 400. To do. The route search system 110 searches for a route from the current location to the destination with reference to map information recorded on a recording medium (not shown). The route information indicating the searched route is transmitted to the departure guide terminal 100, and the control unit 200 acquires the route information via the communication unit 400.

  Further, the control unit 200 draws an image showing a map based on the map information and displays the image on the display unit of the user I / F unit 410. The control unit 200 controls the user I / F unit 410, highlights the route indicated by the route information on the map, and accepts a route determination operation by the user. Then, the control unit 200 controls the user I / F unit 410 by the processing of the route guide unit 210a to display the route on the map, and performs voice guidance indicating the route to guide the current location to the destination. To guide you.

  In a configuration in which such route guidance can be executed, the user can register a route (commuting route or the like) used on a daily basis. That is, the user operates the user I / F unit 410 and inputs the departure point, destination, and departure time of the daily route. The control unit 200 transmits a starting point and a destination to the route search system 110 to search for a route, receives the searched route, and displays the route on the map on the display unit of the user I / F unit 410. When the user confirms that the displayed route is acceptable by using the input unit of the user I / F unit 410, the control unit 200 records the departure time information indicating the route and the departure time on a recording medium (not shown). When the user records the departure time information on the recording medium, the control unit 200 transmits the departure time information to the departure guidance system 10 via the communication unit 400 by the processing of the route guidance unit 210a.

  When a user registers a daily route as described above, the user can reduce the possibility of a situation in which the arrival to the destination is not in time (lags behind the daily arrival time) on the daily route. You can get guidance about departure.

  The guidance information acquisition unit 210b is a program module that causes the control unit 200 to execute a function of acquiring guidance information for performing guidance related to the departure. In the present embodiment, guidance information for performing guidance regarding departure is generated by the departure guidance system 10 and is transmitted in order from the user with the highest priority. In the control unit 200, when the departure guidance terminal 100 provided with the control unit 200 is a transmission destination, guidance information is acquired via the communication unit 400.

  The guidance output unit 210c is a program module that causes the control unit 200 to execute a function of outputting guidance regarding the departure. That is, the control unit 200 displays the guidance indicated by the guidance information on the display unit of the user I / F unit 410. As a result, for example, it is guided that the daily route is more crowded than usual, traffic jams, or vacancy than usual. Therefore, it is possible to increase the possibility that the user can arrive in time for the normal arrival time by taking an action such as starting earlier than usual according to the guidance.

(3) Departure time acquisition processing:
Next, the departure time acquisition process will be described in detail. FIG. 2A is a flowchart showing departure time acquisition processing. The departure time acquisition process may be executed in response to various triggers. For example, the process of acquiring the departure times of a plurality of users may be executed at regular intervals, or the user may use the departure guidance terminal 100. It may be executed every time a route used on a daily basis is registered.

  When the departure time acquisition process is started, the control unit 20 acquires departure time information indicating a route and a departure time by the function of the departure time acquisition unit 21a (step S100). That is, the control unit 20 outputs a transmission request for departure time information to the departure guidance terminal 100 used by the user who is the acquisition target of departure time information via the communication unit 40. When the transmission request is output, the control unit 200 of the departure guide terminal 100 that is the transmission request destination leaves the daily route registered by the user via the communication unit 400 and the departure time information indicating the departure time of the route. Is output. The control unit 20 acquires the departure time information via the communication unit 40.

  Next, the control unit 20 records the route and the departure time in association with the terminal ID by the function of the departure time acquisition unit 21a (step S105). That is, the control unit 20 associates the terminal ID of the transmission source with the departure time information, and records the departure time information 30a on the recording medium 30. When the departure time information 30a is recorded on the recording medium 30 as described above, a user who uses the departure guidance terminal 100 having the terminal ID associated with the departure time information 30a becomes a guidance target for departure. It becomes a possible state.

(4) Required time difference acquisition processing:
Next, the required time difference acquisition process will be described in detail. FIG. 2B is a flowchart showing a required time difference acquisition process. The required time difference acquisition process may be executed according to various triggers, for example, may be executed at regular intervals, or may be executed at a timing according to the user, and various configurations may be employed. is there. The required time difference acquisition process includes a loop process, and each loop process is executed with each of a plurality of users as a processing target user.

  The users who can be processed may be all users in which the departure time information 30a is recorded, or may be some users. As a configuration in which some users are processed, for example, the required time difference acquisition process is started every fixed period, and within a fixed period from the reference time in each process (for example, the time when the process time difference acquisition process is started) A configuration in which a user whose departure time is included in the range is a processing target is included. Of course, various configurations other than this configuration can be adopted, and the required time difference acquisition process is started every fixed period, and a predetermined number is used in the order of the departure time after the reference time and the reference time and the departure time being closest. For example, a configuration in which a person is selected and set as a processing target is given.

  In any case, the control unit 20 sets a situation in which a specific user can be processed in response to a specific trigger, and executes the required time difference acquisition process by the function of the required time difference acquisition unit 21b. When the required time difference acquisition process is started, the control unit 20 acquires the route of the user to be processed (step S200). That is, the control unit 20 selects a user who is not a target of the loop processing in steps S200 to S220 as a processing target from among users who can be a target of processing. Then, the control unit 20 refers to the departure time information 30a of the user based on the terminal ID of the departure guide terminal 100 used by the user to be processed, and acquires the route of the user to be processed.

  Next, the control unit 20 acquires current traffic information on the route (step S205). That is, the control unit 20 acquires the traffic volume information 30b via the communication unit 40, records the traffic volume information 30b in the recording medium 30, and based on the traffic volume information 30b, the current traffic volume on the route acquired in step S200. Get information. Next, the control unit 20 acquires normal traffic information on the route (step S210). That is, referring to the traffic information 30b, the normal traffic information on the route acquired in step S200 is acquired.

  Next, the control part 20 acquires a required time difference (step S215). That is, the control unit 20 acquires the current required time of the route by calculating the sum of the average required time in each road section constituting the route based on the current traffic volume information acquired in step S205. Moreover, the control part 20 acquires the normal required time of a path | route by calculating the sum of the average required time in each road area which comprises a path | route based on the normal traffic information acquired at step S210. Then, the control unit 20 acquires the required time difference by subtracting the normal required time from the current required time. When the required time difference of the user to be processed is acquired, the control unit 20 records the terminal ID of the departure guide terminal 100 used by the user and the required time difference in the RAM in association with each other.

  Next, the control unit 20 determines whether or not the required time difference for all users has been acquired (step S220). That is, the control unit 20 determines that all the users who can be processed are the users to be processed, and when the loop process is completed, the required time difference for all users has been acquired. In step S220, when it is not determined that the required time difference for all users has been acquired, the control unit 20 repeats the processes after step S200. If it is determined in step S220 that the required time difference for all users has been acquired, the control unit 20 ends the required time difference acquisition process.

(5) Departure guidance processing:
Next, the departure guidance process will be described in detail. FIG. 3 is a flowchart showing the departure guidance process. The departure guidance process may be executed in response to various triggers. For example, a configuration that is executed after the required time difference acquisition process is completed may be employed. Since the loop process is executed while changing the user in the departure guidance process, when the required time difference acquisition process is executed in a situation where some users can be processed, the loop process included in the departure guidance process In this case, some of the users can be processed.

  Anyway, the control part 20 performs a departure guidance process by the function of the departure guidance part 21c in the condition where a specific user can become a process target according to a specific trigger. When the departure guidance process is started, the control unit 20 acquires the departure time of the user to be processed (step S300). That is, the control unit 20 selects a user who is not a target of the loop processing in steps S300 to S335 as a processing target from among users who can be a target of processing. Then, the control unit 20 refers to the departure time information 30a of the user based on the terminal ID of the departure guide terminal 100 used by the user to be processed, and is associated with the route of the user to be processed. Get departure time.

  Next, the control unit 20 acquires a required time difference between users to be processed (step S305). That is, the control unit 20 refers to the RAM, and acquires the required time difference associated with the terminal ID indicating the processing target user from the required time difference acquired in step S215. Next, the control unit 20 determines whether or not a value obtained by subtracting the current time from the departure time of the user is smaller than 0 (step S310). That is, the control unit 20 subtracts the current time from the departure time acquired in step S300, and determines whether or not the result is negative.

  In step S310, when it is determined that the value obtained by subtracting the current time from the departure time of the user is smaller than 0, the control unit 20 excludes the processing target user from the guidance target (step S315). That is, when the departure time of the user to be processed has passed, it is highly possible that the user has no meaning even if the guidance regarding departure is rushed. Therefore, the control unit 20 excludes the user from the guidance target. According to the above configuration, guidance for a user with low guidance value can be omitted, and resources can be saved. In addition, the structure which makes the priority of guidance minimum may be sufficient here besides the structure excluded from guidance object.

  In step S310, if it is not determined that the value obtained by subtracting the current time from the departure time of the user is smaller than 0, that is, if the current time has not passed the departure time of the user to be processed, the control unit 20 It is determined whether or not the time difference is 0 or less (step S320). That is, the control unit 20 determines whether or not the required time difference acquired in step S305 is 0 or negative. If it is determined in step S320 that the required time difference is equal to or smaller than 0, the current situation is more vacant than the normal situation, and therefore the control unit 20 is estimated that the degree of urgency of the user to be processed is small. .

  Therefore, the control unit 20 sets the priority of the processing target user to the lowest (step S325). That is, when the total number of users whose priority is not determined among users who can be processed is N, the control unit 20 sets the Nth priority. Of course, among the users whose priority is set to the lowest in step S325, for example, the control may be performed such that the priority is lowered as the difference between the current time and the departure time increases. Moreover, the control part 20 considers that a user's urgency degree is small and may exclude the said user from guidance object.

  When it is not determined in step S320 that the required time difference is 0 or less, the control unit 20 gives higher priority as the value of the departure time-required time difference is smaller (step S330). That is, the control unit 20 subtracts the required time difference acquired in step S305 from the departure time acquired in step S300.

  In the present embodiment, step S330 is executed when the required time difference is positive. However, when the required time difference is positive, it takes longer time to travel on the route than the normal time. For this reason, in order to be in time for the normal arrival time, there is a high possibility that departure earlier than the normal departure time is required. And the user who has a smaller value of the difference between the departure time and the required time is in an urgent situation. Therefore, the control unit 20 gives higher priority as the value of the departure time-required time difference is smaller.

  The priority needs to be compared between the departure time and the required time difference among a plurality of users. Therefore, the control unit 20 associates the terminal ID with the value of the departure time-required time difference and records it in the RAM, and the departure time-required time difference value for a plurality of users in the loop process of steps S300 to S335. Are recorded in the RAM, the values of the respective users are compared. And the control part 20 gives a high priority from the user with a small value, and records it on RAM. For example, in the course of a loop process, if the value of the departure time-required time difference has been specified for three users, the control unit 20 compares the values of the respective users and determines the user with the smallest value. Priorities 1 and 2 are given priority to users with an intermediate value and priority 3 to a user with the highest value (the lower the priority value, the higher the priority).

  When one of steps S315, S325, and S330 is executed, the control unit 20 determines whether or not the processing for all users has been completed (step S335). That is, the control unit 20 determines that all the users who can be processing targets are users to be processed, and when the loop processing is ended, the processing for all users is ended. If it is not determined in step S335 that the processes for all users have been completed, the control unit 20 repeats the processes after step S300.

  If it is determined in step S335 that the processing for all users has been completed, the control unit 20 executes guidance regarding departure (step S340). That is, the control unit 20 generates guidance information regarding departure, controls the communication unit 40, transmits the guidance information to the departure guidance terminal 100 of the terminal ID used by the user with the highest priority, and uses the information Exclude a person from sending. Then, the process of transmitting to the user with the highest priority among the remaining users is repeated until there are no untransmitted users.

  According to the above configuration, the guidance regarding departure is guided from the user whose departure time is later than the current time and whose time obtained by subtracting the required time difference from the departure time is earlier. As a result, for many users, guidance is provided before the daily departure time and before the time that requires departure.

(6) Other embodiments:
The above embodiment is an example for carrying out the present invention, and various other embodiments are adopted as long as guidance regarding departure is given preferentially from a user whose time difference is reduced from the departure time. Is possible. For example, the departure guidance terminal 100 may be a device mounted on a vehicle or the like, or may be a system realized by a plurality of devices (for example, a client and a server). The departure guidance system 10 can also employ various configurations, and may be a system realized by a plurality of devices (for example, a client and a server), for example.

  Furthermore, at least a part of each part (guidance information acquisition part 210b, departure time acquisition part 21a, etc.) constituting the departure guidance terminal 100 and the departure guidance system 10 may be divided into a plurality of devices. Of course, a configuration in which a part of the configuration of the above-described embodiment is omitted, or a configuration in which the order of processing is changed or omitted may be realized. For example, in the departure guidance process, at least one of steps S310 and S320 may be omitted. When step S310 is omitted, step S315 is also omitted, and when step S320 is omitted, step S325 is also omitted. Furthermore, at least a part of each device may be integrated. For example, the route search may be executed by the departure guidance terminal 100.

  Furthermore, the process of giving guidance regarding departure preferentially from a user whose time difference is reduced from the departure time can be realized by various processes that are substantially the same as the process. For example, the user may have a higher priority as the value obtained by subtracting the current time and the required time difference from the departure time is smaller. In other words, since the current time is considered to be the same or almost the same when making a determination on multiple users, the difference between the current time and the required time difference from the departure time and the required time difference from the departure time are calculated. The magnitude of the reduced value is substantially the same.

  The departure time acquisition unit only needs to be able to acquire the normal departure time of the route that the user uses on a daily basis for each user. That is, the departure time acquisition unit only needs to be able to specify the departure time of the route that the user uses on a daily basis as the daily departure time. The normal departure time may be statistically calculated based on the movement history of the user, the operation start history of the vehicle or the like, or may be specified by the user himself as in the above-described embodiment. In any case, it is sufficient that the normal departure time of each user can be specified.

  The route used on a daily basis may be specified by various methods, and may be calculated statistically based on the movement history of the user, the operation start history of the vehicle, etc., as in the above-described embodiment. You may specify it yourself. Of course, the statistics may be performed under specific conditions (for example, only weekday information is referred to). In addition, the route that is used on a daily basis is only required to have at least the same departure point and destination, and when there are a plurality of routes in which at least part of road sections included in the route are different, If the destination is the same, each of the plurality of routes may be regarded as a route used daily.

  The departure time may be one point on the time axis or may have a range on the time axis. In the latter case, when the comparison is made for each user or the time difference is calculated, the time (the earliest time in the range, etc.) is specified by the method common to each user from the range indicating the departure time, and the comparison or calculation is performed. Etc. should just be performed.

  The required time difference acquisition unit acquires the required time difference, which is the difference between the current required time of the route and the normal required time, based on the current traffic indicating the current traffic and the normal traffic indicating the normal traffic. I can do it. That is, the required time difference acquisition unit only needs to be able to acquire the required time difference based on the current traffic information and the statistical traffic information. The required time difference may be acquired with a configuration different from that of the above-described embodiment. For example, the required time difference may be directly calculated based on the current traffic volume and the normal traffic volume. More specifically, the configuration in which the required time difference is calculated by the product of the required time difference for each unit distance and the route length may be implemented based on the current traffic volume and the normal traffic volume.

  Furthermore, the current traffic volume and the normal traffic volume may be defined for each road or each road section constituting the route, may be defined for roads belonging to a specific range, or may be defined for each road type. It may be defined or a combination thereof, and various configurations can be adopted. The traffic volume may be defined by various methods, and may be the degree of congestion (congestion, congestion, empty space, etc.) for the road or road section, or the average travel time or average vehicle speed for the road or road section. There may be.

  The departure guidance unit only needs to be able to preferentially provide guidance regarding departure from a user whose time is less than the normal departure time. In other words, it is only necessary for the departure guidance unit to be able to give guidance preferentially from a user whose time is too late for the destination. The preferential guidance only needs to be able to be performed earlier as the guidance destination has a higher priority, and it is only necessary to perform the guidance in descending order of priority. Of course, when comparing users who actually receive guidance, due to the influence of the communication environment of each user, etc., there is a possibility that the order of receiving guidance does not match the order of high priority, In many cases, there is a high possibility of receiving guidance in descending order of priority.

  Furthermore, as in the present invention, the method of giving guidance related to departure preferentially from a user whose time is less than the departure time and is earlier can be applied as a program or method. The system, program, and method as described above can be realized as a single device or can be realized as a plurality of devices, and include various aspects. Further, some changes may be made as appropriate, such as a part of software and a part of hardware. Furthermore, the invention can be realized as a recording medium for a program for controlling the system. Of course, the software recording medium may be a magnetic recording medium, a magneto-optical recording medium, or any recording medium to be developed in the future.

DESCRIPTION OF SYMBOLS 10 ... Departure guidance system, 20 ... Control part, 21 ... Departure guidance program, 21a ... Departure time acquisition part, 21b ... Required time difference acquisition part, 21c ... Departure guide part, 30 ... Recording medium, 30a ... Departure time information, 30b ... Traffic information 40 ... Communication unit 100 ... Departure guide terminal 110 ... Route search system 120 ... Traffic information management system 200 ... Control unit 210 ... Guidance output program 210a ... Route guide unit 210b ... Get guidance information Part, 210c ... guidance output part, 400 ... communication part, 410 ... user I / F part

Claims (4)

A departure time acquisition unit that acquires, for each user, a normal departure time of a route that the user uses on a daily basis;
A required time difference acquisition unit that acquires a required time difference that is a difference between the current required time of the route and the normal required time based on the current traffic indicating the current traffic and the normal traffic indicating the normal traffic. When,
A departure guidance unit that gives guidance on departure with priority from the user whose time required by subtracting the required time difference from the departure time is earlier;
Departure guidance system with. The departure guide is
Do not give guidance to users in the previous period whose current time is past the departure time,
The departure guidance system according to claim 1. The normal departure time of the route that the user uses on a daily basis is acquired for each user, and the route is based on the current traffic volume indicating the current traffic volume and the normal traffic volume indicating the normal traffic volume. Is obtained as a difference between the current required time and the normal required time, and the guide information indicating the information about the departure is given preferentially from the user whose time obtained by subtracting the required time difference from the departure time is earlier. From the departure guidance system that transmits the previous term guidance information as a transmission target, a guidance information acquisition unit that obtains the previous term guidance information,
A guidance output unit that provides guidance on departure based on the previous period guidance information;
Departure guidance terminal equipped with. Computer
A departure time acquisition unit for acquiring, for each user, a normal departure time of a route that the user uses on a daily basis;
A required time difference acquisition unit that acquires a required time difference that is a difference between the current required time of the route and the normal required time based on the current traffic indicating the current traffic and the normal traffic indicating the normal traffic. ,
A departure guide unit that gives guidance about departure with priority from the user whose time required by subtracting the required time difference from the departure time is earlier,
Departure guide program to function as.

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