JP2019144028A - Electronic device - Google Patents

Abstract

To provide an electronic device with which it is possible to utilize predicted congestion information from a waypoint to a destination and present an optimum method for utilizing the waypoint.SOLUTION: An onboard device 100 of the present invention includes a navigation unit 130. The navigation unit 130 comprises: a route search means for searching for a route to a destination including a waypoint; a prediction means for predicting first congestion information from the waypoint to the destination when staying at the waypoint and second congestion information from the waypoint to the destination when not staying at the waypoint, respectively; and an output means for outputting guidance information for utilizing the waypoint on the basis of the first and the second congestion information.SELECTED DRAWING: Figure 1

Description

  The present invention relates to an in-vehicle device having a navigation function, and more particularly to use guidance of a transit point such as a facility in a navigation function.

  Conventionally, in a navigation apparatus that performs route guidance, when a user operates an input unit to set a waypoint and a destination, a route from the current position to the destination including the waypoint is searched. Normally, the information provided to the user is a route that has the shortest distance from the current location to the destination including the waypoint, and may be a route that obtains traffic information in real time and has the shortest required time. .

  A technology is disclosed in which a navigation device receives traffic jam information ahead of its own vehicle position from a traffic information distribution destination such as VICS (registered trademark) (Vehicle Information & Communication System) and provides another route for avoiding traffic jams. ing. For example, if the route to be traveled is congested, it is determined whether the waypoint or the point set as the destination can be replaced by another point. Searching for a traffic jam avoidance route by replacing the ground with an alternative point (Patent Document 1).

JP 2005-265708 A

  A problem when a route to a destination including a waypoint is searched in a conventional navigation device will be described. For example, when the user arrives at the waypoint, there is no traffic jam on the route to the destination, but there may be a situation where the traffic jam occurs on the route to the destination after staying at the route point for a predetermined time. In addition, there is a traffic jam on the route to the destination at the time of arrival at the transit point, and there is a case where the traffic jam is eliminated by staying at the transit point and the destination can be comfortably reached. However, the conventional navigation device does not have a function to guide how to use the waypoint in consideration of future traffic jams, and the user should appropriately determine whether or not to stay at the waypoint. I could not.

  The present invention has been made to solve such a problem, and an electronic apparatus capable of guiding an optimum way of using a waypoint using traffic jam prediction information from the waypoint to the destination. The purpose is to provide.

  An electronic device having a navigation function includes route search means for searching for a route to a destination including a transit point, first traffic information from the transit point to the destination when staying at the transit point, and the transit point Predicting means for predicting the second traffic information from the transit point to the destination when not staying at the destination, and the use guide information of the transit point based on the first traffic information and the second traffic information Output means for outputting.

  In one embodiment, the output means provides a usage guide that prompts a user to stay at a transit point when there is no traffic jam based on the first traffic jam information and there is a traffic jam based on the second traffic jam information. When there is a traffic jam based on the first traffic jam information and there is no traffic jam based on the second traffic jam information, a usage guide prompting non-staying at the waypoint is output.

  In another embodiment, the first traffic jam information and the second traffic jam information each include first and second travel times when traveling from the waypoint to the destination, and the output The means outputs a usage guide prompting the user to stay at the waypoint when the second travel time is shorter than the first travel time, and when the first travel time is longer than the second travel time. The usage guidance that encourages non-staying at the waypoint is output.

  According to the present invention, by predicting the occurrence of traffic jams when staying at a transit point and the occurrence of traffic jams when not staying at a transit point, and comparing the respective traffic jam information, You can get usage guidance.

It is a block diagram which shows the structure of the vehicle-mounted apparatus which concerns on 1st Example of this invention. It is a figure which shows the structure of facility information DB which concerns on 1st Example of this invention. It is a figure which shows the traffic congestion information which concerns on 1st Example of this invention. It is a figure which shows the functional structure of the use guidance notification program which concerns on 1st Example of this invention. It is a flowchart explaining the operation | movement which notifies the usage guidance which concerns on 1st Example of this invention. It is a figure which shows the example of a display which concerns on 1st Example of this invention. It is a figure which shows the functional structure of the use guidance notification program which concerns on 2nd Example of this invention. It is a flowchart explaining the operation | movement which notifies the usage guidance which concerns on 2nd Example of this invention.

  Hereinafter, an electronic device according to an embodiment of the present invention will be described in detail with reference to the drawings based on an embodiment. The electronic device according to the present invention can be a vehicle-mounted device that is fixedly mounted on a moving body such as an automobile, or a portable computer device that can be brought into the moving body.

  FIG. 1 is a block diagram illustrating a configuration of an in-vehicle device according to an embodiment of the present invention. The in-vehicle device 100 according to the present invention includes an input unit 110, a vehicle position detection unit 120, a navigation unit 130, a communication unit 140, an audio output unit 150, a display unit 160, a storage unit 170, and a control unit 180. .

  The input unit 110 allows the user to input various information to the in-vehicle device. The input unit 110 includes, for example, an input key device, a voice input recognition device, a touch panel, and the like, and the user inputs menu selection operations, map scrolling, destination setting, route search instructions, and the like via the input unit 110. be able to.

  The own vehicle position detection unit 120 detects the current position of the own vehicle. The own vehicle position detection unit 120 detects the own vehicle position based on, for example, positioning using a GPS signal and positioning using an autonomous navigation sensor. The autonomous navigation sensor includes, for example, an azimuth sensor such as an angular velocity sensor and a geomagnetic sensor, a vehicle speed sensor such as a vehicle speed pulse sensor, and the like. The vehicle position information detected by the vehicle position detection unit 120 is provided to the navigation unit 130. In addition, the vehicle position information may be acquired by accessing a position information distribution site or a distribution server via the communication unit 140.

  The navigation unit 130 executes a navigation function in cooperation with the control unit 180. When the destination is set by the user, the navigation unit 130 searches the route from the vehicle position detected by the vehicle position detection unit 120 to the destination with reference to the map DB 171 or the like, and the searched route Is displayed on the display unit 160, or a road map around the vehicle position is guided. In addition, the navigation unit 130 calculates predicted arrival times at the waypoints and the destination in consideration of traffic jam information and the like, and performs route guidance that also includes the arrival times.

  The communication unit 140 enables wired or wireless data communication with an external device or an external network. In this embodiment, for example, roadside information DSRC (registered trademark) (spot communication: 5.8 GHz band) used for receiving traffic jam information sent from a road traffic information center or used in ETC (registered trademark) or the like. Road information including traffic jam information may be acquired by performing data communication such as Dedicated Short Range Communication), FM multiplex broadcasting, digital broadcasting, radio beacon, optical beacon, inter-vehicle communication, mobile device, etc. .

  The voice output unit 150 outputs a voice such as guidance when the navigation unit 130 is executed, and the display unit 160 displays a road map when the navigation unit 130 is executed.

  The storage unit 170 stores various information necessary for the in-vehicle device 100. In one embodiment, the storage unit 170 includes a map DB 171, facility information 172, and traffic jam information 173. The map DB 171 stores map data (such as link data and node data). The link data is road information connecting the nodes, and includes general roads and expressway types, the coordinates of the start and end points of the link, the direction of the link, and the like. The node data is information representing position coordinates such as intersections and branch points, intersection attributes, and the like. Note that the map data may be stored in the storage unit 170 in advance with the map DB 171 or acquired from the server or the like that distributes the map data via the communication unit 140 when the navigation unit 130 is executed. It may be a thing.

  Next, details of the facility information DB 172 are shown in FIG. The facility information DB 172 includes facility data related to each of a plurality of facilities, and each facility data represents a facility ID serving as an identifier of the facility, a type such as a facility restaurant, a fast food store, and a gas station. Facility type, facility name representing facility name, facility coordinates representing facility location, facility phone number representing facility telephone number, facility address representing facility address, facility use time representing facility required time, Other facility attributes are registered. For example, when the facility is a restaurant or a restaurant that provides food, the other facility attribute includes information on whether the facility provides food that can be taken out. Note that the facility information may be provided in advance in the storage unit 170 with the facility information DB 172, or acquired from time to time from a server that distributes facility information via the communication unit 140 when the navigation unit 130 is executed. You may do.

  Details of the traffic jam information included in the traffic jam information DB 173 will be described with reference to FIG. For example, the VICS information received from the road traffic center includes information such as a VICS link ID for identifying a road such as a traffic jam, the length of the traffic jam, and the degree of congestion. The VICS link ID indicates a link number corresponding to the road. The length of the traffic jam indicates the distance from the traffic jam start point (one end of the VICS link). The degree of congestion specifies, for example, three types of states: “smooth” in which the vehicle can travel smoothly, “congestion” in which the vehicle is below a certain speed, and “congestion” in which the vehicle hardly moves. The degree of congestion is determined based on the traveling speed according to the type of road such as a general road, an intracity highway, and an intercity highway. Note that the traffic jam information may be stored in the storage unit 170 in advance with the traffic jam information DB 173, or when the traffic information is transmitted from the server that delivers the traffic jam information via the communication unit 140 when the usage guide notification program 200 is executed. You may acquire.

  The control unit 180 controls the overall operation of the in-vehicle device 100. In the present embodiment, the control unit 180 includes a microcontroller or a microprocessor having a ROM / RAM or the like, and controls the operation of the navigation unit 130 by a program stored in the ROM / RAM or the like. In the present embodiment, the control unit 180 executes a usage guidance notification program 200 that guides the way of using a waypoint when stopping at a waypoint such as a facility. The usage guide notification program 200 operates when the navigation unit 130 is executed.

  FIG. 4 is a block diagram showing a functional configuration of the usage guide notification program 200 according to the first embodiment of the present invention. The usage guidance notification program 200 includes a transit point arrival detection unit 202, a transit point information acquisition unit 204, a traffic jam prediction unit 206, a traffic jam comparison unit 208, and a usage guidance notification unit 210.

  The waypoint arrival detection unit 202 detects whether or not the vehicle has arrived at or near the waypoint. The vicinity of the transit point is, for example, a position away from the transit point by a certain distance such as within a radius of 1 km, and this distance may be set in advance or may be set by the user. This makes it possible to receive a notification of usage guidance at the transit point before the vehicle arrives at the transit point. The waypoint information acquisition unit 204 acquires, for example, information about a facility that is a waypoint from the facility information DB 172.

  The traffic jam predicting unit 206 statistically processes the traffic jam information history stored in the traffic jam information DB 173, thereby predicting the occurrence of traffic jam on the route at each time point when the host vehicle leaves the transit point. In this embodiment, the first traffic jam information generated on the route to the destination after the facility usage time from the time of arrival at the transit point and the second information generated on the route to the destination at the time of arrival at the transit point. Each of the traffic jam information. In one embodiment, the expansion / contraction distance per unit time of the traffic jam section is calculated based on the traffic jam information history about the traffic jam location on the route from the same waypoint to the destination recorded in the traffic jam information DB 173. This is calculated by multiplying the obtained transit point arrival time and the transit point arrival time by the time after the use time.

  The traffic jam prediction unit 206 may further perform statistical processing based on season, day of the week, large consecutive holidays, three consecutive holidays, time, and weather. In this embodiment, the traffic jam prediction is performed from the traffic jam information stored in the traffic jam information DB 173. However, as another embodiment, a necessary road is accessed by accessing a traffic information distribution site or a distribution server via a network. The traffic jam prediction information may be received. Communication with the network at that time is performed via the communication unit 140.

  The traffic jam comparison unit 208 compares the first traffic jam information calculated by the traffic jam prediction unit 206 with the second traffic jam information. The usage guidance notification unit 210 notifies the user of usage guidance based on the comparison result of the traffic jam comparison unit 208.

  The operation of notifying and determining the usage guidance according to the present embodiment will be described with reference to the flowchart of FIG. In the following description, it is assumed that a restaurant or a restaurant is set as a waypoint.

  First, when a destination including a waypoint is input from the user, the navigation unit 130 searches for a route to the destination including the waypoint, and performs route guidance processing based on the route selected by the user or automatically determined. (S100). The waypoint arrival detection unit 202 detects whether the vehicle has arrived at the waypoint (S102). If arrival at the transit point is confirmed, proceed to the next step. This process is performed until it arrives at the waypoint.

  Next, the transit point information acquisition unit 204 acquires information about the restaurant set as the transit point from the facility information DB 172. Specifically, information on whether or not a restaurant can be taken out is acquired (S104). If the restaurant cannot be taken out, the process ends. When the restaurant can be taken out, the usage time information related to the use of the restaurant is acquired from the facility information DB 172 (S106). The usage time information relating to the use of the restaurant may be information provided in the facility information DB 172 in advance, set by the user, or calculated by statistically processing information when the same restaurant was used in the past.

  Next, the traffic jam prediction unit 206 predicts the time of arrival at the waypoint based on the searched route (S108). Next, communication with the traffic information center is performed via the communication unit 140, and traffic information including the latest traffic jam information of the searched route is acquired (S110). This step is performed until the communication unit 140 completes reception of the traffic jam information, and the acquired traffic jam information is recorded in the traffic jam information DB 173 as needed.

  The traffic jam prediction unit 206 uses the restaurant usage time information, the transit point arrival time, and the traffic jam information history stored in the traffic jam information DB 173 on the route from the time of arrival at the transit point to the destination after the facility usage time. The first traffic jam information generated at the time point and the second traffic jam information generated on the route to the destination at the time of arrival at the waypoint are predicted (S112).

  Next, the traffic jam comparison unit 208 compares the first traffic jam information and the second traffic jam information, and the usage guidance notification unit 210 notifies usage guidance based on the comparison result. First, if it is predicted that no traffic jam will occur after the facility usage time from the time of arrival at the transit point, which is the first traffic jam information (S114), there is no concern of being caught in the traffic jam even if staying. As shown in FIG. 6A, the usage guide notification unit 210 displays that there is no problem even if the user stays at the transit facility (S116). Next, if it is predicted that there will be no traffic jam when it arrives at the transit point, which is the second traffic jam information (S118), there is a concern that people who take out without staying and immediately depart will be involved in the traffic jam Therefore, the usage guide notification unit 210 displays the reason why it is better to take out the dishes at the transit point facility as shown in FIG. 6B (S120).

  Next, when traffic congestion occurs in both cases, the usage guide notification unit 210 notifies only traffic congestion information as shown in FIG. 6C (S122). 6 (a) to 6 (c) are given as display examples. However, this is only an example, and the wording can be changed when the operation is performed. It can be modified by both voice and voice.

  According to the present embodiment, the presence / absence of traffic congestion to the destination when the facility is used and when the facility is not used is predicted. Will be able to.

  Next, the second embodiment of the present invention will be described. FIG. 7 is a diagram showing a functional configuration of the usage guide notification program 200A according to the second embodiment of the present invention. The usage guide notification program 200A includes a travel time prediction unit 207 that predicts the travel time from the waypoint to the destination in addition to the configuration of the first embodiment. The operation for determining and notifying the usage guidance according to the second embodiment of the present invention will be described with reference to the flowchart of FIG. Note that the processing from S100 to S112 is the same as that of the first embodiment, and thus the description thereof is omitted.

  The travel time prediction unit 207 further includes first traffic information that is generated on the route after the use time of the facility from the time of arrival at the waypoint acquired in S112, and second information that is generated on the route when the route is reached. Based on the traffic jam information, the travel time required from each time point to the departure from the transit point and arrival at the destination is predicted (S113). Here, the predicted travel time calculated from the first traffic jam information is defined as the first travel time, and the predicted travel time calculated from the second traffic jam information is defined as the second travel time. The calculation method may be a method of adding the time required to travel in the traffic jam section from the information on the length of the traffic jam section and the degree of congestion to the travel time on the route not including the traffic jam information.

  Next, the traffic comparison unit 208 compares the first travel time with the second travel time. When the second travel time is longer than the first travel time (S115), the usage guide notifying unit 210 has a shorter time to stay in the traffic jam if the staying time is reduced. As shown in a), the fact that it is better to stay at the transit facility is displayed with a reason (S116). On the other hand, when the first travel time is longer than the second travel time (S117), it is possible to take out without staying and take a shorter time to get involved in the traffic jam, as shown in FIG. 6B. The fact that it is better to take out the food at the transit facility is displayed with a reason (S120).

  Next, when the first travel time is equal to the second travel time, the reason is explained as shown in FIG. 6C and the user is allowed to select (S122). 6 (a) to 6 (c) are given as display examples. However, it is possible to change the wording and the like when implementing, and the method of notifying the usage guide can be voice only or both display and voice. It can be deformed, for example.

  According to the present embodiment, since the travel time to the destination when the facility is used and when the facility is not used is compared, the transit facility that requires less travel time from the transit point to the destination for the user. You will be able to provide usage guidance. Also, in both cases where the occurrence of traffic jams is predicted in the first embodiment, the use guidance can be provided more appropriately by adapting the second embodiment.

  In addition, since the second embodiment provides a method of using the facility of which traveling time is the shortest (stay or takeout), for example, when searching for a detour route by traffic jam prediction, Calculate and compare the travel time taking into account the traffic information on all the searched routes, identify the route with the shortest travel time, and whether the identified route was calculated from the first traffic information It is also possible to provide facility usage guidance (stay or takeout) depending on whether it is calculated from the second traffic jam information.

  Further, if information on the waiting time until the facility is used can be acquired from the facility information DB or the outside, the traffic jam prediction including the waiting time may be performed. Thereby, the accuracy of traffic jam prediction can be further increased. Or, if you can also acquire the waiting time for takeout, you can predict the departure time after the detailed takeout and the traffic jam at the departure time, so you can avoid the situation where the takeout takes time and the traffic jam occurs .

  Further, in the embodiment, the facility usage time and the presence / absence of take-out are acquired from the data stored in the facility information DB 172. However, the implementation is not limited to this, and an external server that distributes facility information in real time You may make it acquire from.

  In the above-described embodiment, the facilities of restaurants and restaurants are exemplified as the waypoints. However, the present invention is not limited to this, and the present invention is also applicable to other places such as sightseeing spots and art museums. Moreover, in the said Example, when the restaurant or the restaurant was a stopover, it was determined whether the restaurant or the restaurant can be taken out, but this is an example, and it is always necessary to determine whether the takeout is possible Not necessarily. For example, regardless of whether or not there is a take-out, it may be possible to simply provide usage guidance for staying or not staying in a restaurant or restaurant.

100: vehicle-mounted device 110: input unit 120: own vehicle position detection unit 130: navigation unit 140: communication unit 150: voice output unit 160: display unit 170: storage unit 171: map DB 172: facility information DB
180: Control unit

Claims (10)

An electronic device having a navigation function,
Route search means for searching for a route to a destination including a waypoint;
Prediction for predicting first traffic jam information from the transit point to the destination when staying at the transit point and second traffic jam information from the transit point to the destination when not staying at the transit point Means,
An electronic device comprising: output means for outputting route guidance information based on the first traffic information and the second traffic information. The output means outputs a usage guide that prompts a user to stay at a transit point when there is no traffic jam based on the first traffic jam information and there is a traffic jam based on the second traffic jam information. 2. The electronic device according to claim 1, wherein, when there is a traffic jam based on the traffic information of 1 and there is no traffic jam based on the second traffic information, a usage guide that prompts non-staying at the waypoint is output. . The first traffic information and the second traffic information include first and second travel times when traveling from the waypoint to the destination, respectively.
When the second travel time is shorter than the first travel time, the output means outputs a usage guide prompting the user to stay at the waypoint, and when the first travel time is longer than the second travel time. The electronic device according to claim 1, wherein a usage guide that prompts non-staying at the waypoint is output. The output means indicates that if there is a traffic jam based on the first traffic jam information and a traffic jam occurs based on the second traffic jam information, the traffic jam occurs regardless of the stay at the waypoint. The electronic device according to claim 1, wherein the electronic device is guided. The electronic device further comprises an acquisition means for acquiring information about the waypoint,
5. The electronic device according to claim 1, wherein the prediction unit predicts the first traffic jam information based on a staying time corresponding to the type information of the waypoint acquired by the acquisition unit. The electronic device according to claim 1, wherein the information about the waypoint includes facility information about a facility, and the output unit outputs a usage guide that prompts take-out based on the facility information. The electronic device further includes a database storing facility information including at least the staying time required for use of the facility and the possibility of takeout,
The electronic device according to claim 5, wherein the acquisition unit acquires the facility information from the database. The electronic device according to claim 5, wherein the acquisition unit acquires information on the waypoint from outside via a wireless communication unit. The acquisition unit acquires congestion information indicating a waiting time until the facility is used via a wireless communication unit, and the prediction unit predicts traffic congestion information after elapse of a stay time in consideration of the congestion information. The electronic device according to any one of 5 to 8. The electronic device further includes traffic information acquisition means for acquiring traffic information,
The electronic device according to claim 1, wherein the prediction unit predicts the first traffic jam information and the second traffic jam information from the traffic jam information acquired from the traffic jam information acquisition unit.

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