JP2014142201A - Route guidance system, communication terminal and computer program executed in communication terminal - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a route guidance system, a communication terminal and a computer program executed in the communication terminal capable of performing route guidance with improved correctness by combining an on-vehicle device and the communication terminal.SOLUTION: When a connected state where a navigation device 3 and a communication terminal 4 are connected to each other in a manner that allows two-way communication to be performed therebetween is changed to a disconnected state, a route guidance system: determines whether or not a vehicle 2 has reached a destination set in the navigation device 3; and when determining that the vehicle 2 has reached the set destination, shows information on a walking route to the set destination from the position of a user or information on the set destination through the communication terminal 4. When determining that the vehicle 2 has not reached the set destination, the route guidance system shows regional information on the position where the vehicle 2 has stopped and information on a remaining route to the set destination through the communication terminal 4.

Description

  The present invention relates to a route guidance system for performing guidance related to a destination, a communication terminal, and a computer program executed on the communication terminal.

  2. Description of the Related Art In recent years, a navigation device is often mounted on a vehicle that provides vehicle travel guidance so that a driver can easily arrive at a desired destination. Here, the navigation device detects the current position of the vehicle by a GPS receiver or the like, acquires map data corresponding to the current position through a recording medium such as a DVD-ROM or HDD or a network, and displays it on a liquid crystal monitor. It is a device that can do. Further, the navigation device has a route search function for searching for an optimum route from the vehicle position to the destination when a desired destination is input, and sets the searched optimum route as a guide route, and displays it. A guide route is displayed on the screen, and when the user approaches an intersection, the user is surely guided to a desired destination by voice guidance. It is also possible to provide information on various facilities on the map. In recent years, communication terminals such as mobile phones, smartphones, tablet terminals, and PDAs (Personal Digital Assistants) may have the same functions as the navigation device.

  Here, the navigation device, which is an on-vehicle device, can provide more detailed and accurate guidance by using vehicle information such as vehicle speed pulses output from the vehicle, but basically when the ACC of the vehicle is turned off. The power is turned off, and subsequent guidance cannot be performed. Therefore, various methods have been proposed for performing guidance by combining a navigation device and a communication terminal portable by the user.

  For example, if the destination is a large facility such as an outlet mall or theme park, or a facility where the location of the parking lot is separated from the facility, and if the guidance is performed only by the navigation device, There is a possibility that the user cannot grasp the route to the destination and the user cannot finally reach the destination. Therefore, for example, in Japanese Patent Application Laid-Open No. 2010-60504, when it is determined that the vehicle has not reached the destination when the engine of the vehicle is stopped, it is determined that the distance to the destination is a predetermined distance or more. In such a case, a technique has been proposed in which current position information and destination information are transmitted from the navigation device to the mobile terminal and route guidance to the subsequent destination is performed in the mobile terminal.

  Japanese Patent Application Laid-Open No. 2011-65239 provides information on a parking lot where the vehicle stops at the portable terminal when the vehicle stops in the parking lot and transmits information on the parking lot from the navigation device to the portable terminal. The technology to be proposed is proposed.

JP 2010-60504 A (pages 13-15, FIG. 7, FIG. 8) JP 2011-65239 A (page 4-6, FIG. 3)

  Here, the guidance required by the user at the time when the user finishes driving the vehicle (that is, when the navigation device is turned off and the connection between the navigation device and the mobile terminal is released) It depends on the situation of the user. However, the technique described in Patent Document 1 is a technique that simply causes the portable terminal to continue guidance by the navigation device, and cannot perform appropriate guidance according to the user's situation on the portable terminal. Further, the technology described in Patent Document 2 is a technology that simply guides information related to a facility where a user has arrived using a mobile terminal, and similarly, the mobile terminal cannot provide appropriate guidance according to the user's situation. .

  The present invention has been made to solve the above-described conventional problems. When the connection between the vehicle-mounted device and the communication terminal is disconnected (that is, when the user finishes driving the vehicle) or after that, A route guidance system capable of providing necessary guidance at a communication terminal and capable of providing more appropriate guidance by combining an in-vehicle device and a communication terminal, and a computer program executed on the communication terminal and the communication terminal are provided. The purpose is to do.

  In order to achieve the above object, a route guidance system (1) according to claim 1 of the present application is an onboard device (3) and a vehicle (2) occupant for guiding traveling based on a route to a set destination. It is a route guidance system composed of a communication terminal (4) owned by a user, and the vehicle-mounted device and the communication terminal are shifted from a connected state in which bidirectional communication is possible to a disconnected state. When detecting that the vehicle has transitioned from the connected state to the disconnected state by the disconnection detecting unit (11) to be detected and the disconnection detecting unit, the vehicle is in a transition from the connected state to the disconnected state. Vehicle arrival determination means (11) for determining whether or not the vehicle has reached a set destination which is a destination set in the in-vehicle device, and the vehicle reaches the set destination by the vehicle arrival determination means. Destination information guidance means (11) for guiding information on the walking route from the user's position to the set destination or the set destination when the communication terminal is determined to be, and the vehicle arrival determining means When it is determined that the vehicle has not reached the set destination, the point information of the position of the vehicle at the time of transition from the connected state to the disconnected state at the communication terminal and the position of the vehicle And point information guidance means (11) for guiding information related to the route to the set destination.

  A route guidance system (1) according to claim 2 is the route guidance system according to claim 1, wherein the vehicle (2) reaches the set destination by the vehicle arrival determination means (11). A distance detection unit (11) for detecting a distance from the user to the set destination after the determination that the destination information guide unit (11) is from the user to the set destination When the distance is equal to or greater than the first distance, the walking route from the user's position to the set destination is guided, and when the distance from the user to the set destination is less than the first distance, It is characterized by guiding information on the set destination.

  The route guidance system (1) according to claim 3 is the route guidance system according to claim 2, wherein the vehicle arrival determination means (11) is configured such that the distance from the vehicle to the set destination is When the distance is less than the second distance that is longer than the first distance, it is determined that the vehicle has reached the set destination.

  Further, the route guidance system (1) according to claim 4 is the route guidance system according to any one of claims 1 to 3, wherein the disconnection detecting means (11) is provided for the vehicle (2). When the ACC is turned off, it is detected that the vehicle-mounted device (3) and the communication terminal (4) shift from the connected state to the disconnected state.

  A route guidance system (1) according to claim 5 is the route guidance system according to any one of claims 1 to 3, wherein vehicle speed acquisition means (11) for acquiring the vehicle speed of the vehicle (2). The cutting detection means (11) has a vehicle speed of the vehicle less than a predetermined speed, and a distance from the vehicle to the set destination is within a predetermined distance or a required time is within a predetermined time. It is characterized by detecting that the vehicle-mounted device (3) and the communication terminal (4) shift from the connected state to the disconnected state.

  Further, the communication terminal according to claim 6 shifts from a connected state connected to the vehicle-mounted device (3) for guiding the traveling of the vehicle based on the set route to the destination to a non-connected state. The disconnection detecting means (11) for detecting the transition and the disconnection detecting means detects that the vehicle (2) has transitioned from the connected state to the non-connected state. The vehicle arrival determination means (11) for determining whether or not the vehicle has reached the set destination which is the destination set in the in-vehicle device at the time of transition to the connected state, and the vehicle arrival determination means Destination information guidance means (11) for guiding a walking route from a user position to the set destination or information on the set destination when it is determined that the vehicle has reached the set destination, and the vehicle When it is determined by the arrival determination means that the vehicle has not reached the set destination, the point information of the position of the vehicle at the time of transition from the connected state to the disconnected state and the position of the vehicle And point information guidance means (11) for guiding information related to the route to the set destination.

  Further, the computer program according to claim 7 is connected to the communication terminal (4) so as to be capable of bidirectional communication with the vehicle-mounted device (3) for guiding the traveling of the vehicle based on the set route to the destination. A disconnect detection function for detecting a transition from a state to a disconnected state, and when the vehicle (2) detects that the transition from the connected state to the disconnected state is detected by the disconnect detection function, Vehicle arrival determination function for determining whether or not the vehicle has reached a set destination that is a destination set in the vehicle-mounted device at the time of transition from the state to the disconnected state, and the vehicle arrival determination function A destination information guidance function for guiding a walking route from a user position to the set destination or information on the set destination when it is determined that the destination has been reached. When the vehicle arrival determination function determines that the vehicle has not reached the set destination, the location information of the vehicle and the position of the vehicle at the time of transition from the connected state to the disconnected state And a point information guidance function for guiding information related to a route from the destination to the set destination.

  According to the route guidance system according to claim 1 having the above-described configuration, the communication terminal after the disconnection is determined depending on whether the vehicle arrives at the set destination at the time when the connection between the vehicle-mounted device and the communication terminal is disconnected. By changing the content of the guidance to be performed, the communication terminal provides guidance required by the user when the connection between the vehicle-mounted device and the communication terminal is disconnected (that is, when the user finishes driving the vehicle) and thereafter. Can be done. As a result, it is possible to perform more appropriate guidance by combining the vehicle-mounted device and the communication terminal.

  According to the route guidance system according to claim 2, when it is determined that the vehicle has arrived at the set destination when the connection between the vehicle-mounted device and the communication terminal is disconnected, Set when the walking distance from the user's position to the set destination is guided when the distance to the set destination is greater than or equal to the first distance, and the distance from the user to the set destination is less than the first distance Information about the destination is guided, so if the user has arrived near the set destination but needs to move to the set destination on foot, the walking route can be guided. It becomes possible. On the other hand, it is possible to reach the nearest destination of the set destination by vehicle, and it is possible to provide information on the set destination without guiding the unnecessary walking route in the situation where the guidance of the walking route to the set destination is unnecessary. It becomes.

  According to the route guidance system according to claim 3, when the distance from the vehicle to the set destination is less than the second distance that is longer than the first distance, it is determined that the vehicle has reached the set destination. Therefore, it is possible to appropriately determine whether or not the vehicle has arrived at the set destination while considering an error in detecting the current position of the vehicle by GPS or the like. Even if it is determined that the vehicle has arrived at the destination, it is possible to guide the walking route with the communication terminal afterwards in a necessary situation. Even when it is set to a long distance, the user can be reliably guided to the set destination.

  According to the route guidance system of claim 4, when it is detected that the vehicle-mounted device and the communication terminal shift from the connected state to the non-connected state by turning off the ACC of the vehicle, the communication terminal Since the guidance is performed, when the user ends the driving of the vehicle, it is possible to perform guidance necessary for the user later on the communication terminal based on the situation of the user at that time.

  According to the route guidance system of claim 5, in a situation where the vehicle speed of the vehicle is less than a predetermined speed and the distance from the vehicle to the set destination is within a predetermined distance or the required time is within a predetermined time. Since the communication terminal is guided when it is detected that the in-vehicle device and the communication terminal have shifted from the connected state to the non-connected state, the communication terminal is installed by the user in the situation immediately before the vehicle ACC is turned off. When it is removed from the list, it is possible to perform guidance required by the user thereafter on the communication terminal based on the situation of the user at that time.

  Moreover, according to the communication terminal of Claim 6, by changing the content of guidance by the presence or absence of the arrival to the setting destination of a vehicle at the time of a connection with an onboard equipment being cut off, It is possible to perform guidance required by the user at the communication terminal when the connection is disconnected (that is, when the user finishes driving the vehicle) and thereafter. As a result, it is possible to perform more appropriate guidance by combining the vehicle-mounted device and the communication terminal.

  Furthermore, according to the computer program of the seventh aspect, the guidance performed at the communication terminal after disconnection depending on whether or not the vehicle arrives at the set destination when the connection between the vehicle-mounted device and the communication terminal is disconnected. By changing the content of the communication terminal, when the connection between the vehicle-mounted device and the communication terminal is disconnected (that is, when the user finishes driving the vehicle) and after that, the user needs guidance on the communication terminal. Is possible. As a result, it is possible to perform more appropriate guidance by combining the vehicle-mounted device and the communication terminal.

It is a schematic structure figure showing a route guidance system concerning this embodiment. It is the block diagram which showed the structure of the communication terminal especially of the route guidance system which concerns on this embodiment. It is a flowchart of the information guidance processing program which the navigation apparatus concerning this embodiment performs. It is a flowchart of the information guidance processing program which the navigation apparatus concerning this embodiment performs. It is the figure which showed an example of the guidance information screen displayed on the display of a communication terminal. It is the figure which showed an example of the guidance information screen displayed on the display of a communication terminal. It is the figure which showed an example of the guidance information screen displayed on the display of a communication terminal.

  Hereinafter, based on one embodiment which materialized a route guidance system concerning the present invention, it explains in detail, referring to drawings. First, a schematic configuration of the route guidance system 1 according to the present embodiment will be described with reference to FIG. FIG. 1 is a schematic configuration diagram showing a route guidance system 1 according to the present embodiment.

  As shown in FIG. 1, the route guidance system 1 according to the present embodiment is basically composed of a navigation device 3 that is an in-vehicle device installed in a vehicle 2 and a communication terminal 4 possessed by an occupant (user) of the vehicle 2. It is configured. The navigation device 3 and the communication terminal 4 are connected by connection means such as a communication cable 5 and configured to be able to transmit and receive data to and from each other. Note that the navigation device 3 and the communication terminal 4 may be connected not by a wired cable but by wireless communication such as infrared rays.

  Here, the navigation device 3 has a function of specifying the current position such as GPS, and further displays a map around the own vehicle position and the current position of the vehicle 2 based on the stored map data, This is an in-vehicle device that searches and guides a route to a set destination.

Further, the communication terminal 4 is a navigation function (hereinafter referred to as a navigation function) such as a function for specifying the current position of the communication terminal 4 such as GPS (that is, the current position of the user) and a map image around the current position of the user. An information communication terminal having a function) is used, and examples thereof include a mobile phone, a smartphone, a tablet terminal, a PDA (Personal Digital Assistant), and the like. When the communication terminal 4 is a terminal that can execute a plurality of applications such as a smartphone, a navigation application is installed as one of the applications. Here, the navigation application is an application that executes a navigation function in the communication terminal 4. As a navigation function, a map image or traffic information around the current position of the communication terminal 4 (user) is displayed based on map information or traffic information acquired from a server or stored in a memory, or the displayed map image Functions for displaying the current position of the communication terminal 4 (user), searching and guiding the route from the set departure point to the destination, and guiding point information such as facilities and place names around the route is there. Particularly in the present embodiment, the navigation device 3 is set for the user who gets off the vehicle after the connection with the navigation device 3 that has been in the connected state is released, for example, when the ACC of the vehicle 2 is turned off. Information on the walking route to the destination, information on the destination, information on the route from the position of the vehicle 2 to the destination at the time of disconnection (for example, traffic information such as traffic jams and accidents) is provided.
Note that the navigation application does not necessarily have all the navigation functions.

  Next, a schematic configuration of the communication terminal 4 will be described with reference to FIG. FIG. 2 is a block diagram schematically showing a control system of the communication terminal 4 according to the present embodiment.

  As shown in FIG. 2, the communication terminal 4 is connected to the data bus BUS, the CPU 11, the memory 12 storing user information (user ID, name, etc.), map information, etc. regarding the user who owns the communication terminal 4, Transmitting / receiving circuit section (RF) 13 for transmitting / receiving signals between the baseband processing and a baseband processing for converting an RF (Radio Frequency) signal received by the transmitting / receiving circuit section 13 into a baseband signal and converting the baseband signal into an RF signal Input / output unit 17 that is an interface between the unit 14, the microphone 15 and the speaker 16, the display 18 configured by a liquid crystal display panel, the input operation unit 19 configured by a touch panel, a keyboard, and the like, the GPS 20, the communication The communication connector 21 to which the cable 5 is connected is connected.

  Here, the CPU 11 built in the communication terminal 4 is a control unit of the communication terminal 4 that executes various operations according to the operation program stored in the memory 12, and constitutes the communication terminal ECU 22 together with the memory 12. Various processing contents of the communication terminal ECU 22 are displayed on the display 18 as necessary. The communication terminal ECU 22 constitutes various means as processing algorithms. For example, the disconnection detecting means detects that the state has shifted from a connected state connected to the navigation device 3 that guides traveling based on the set route to the destination to a non-connected state so as to be capable of bidirectional communication. The vehicle arrival determination means is set in the navigation device 3 when the vehicle 2 transitions from the connected state to the disconnected state when the disconnection detecting means detects that the vehicle has shifted from the connected state to the disconnected state. It is determined whether or not it has reached the ground (set destination). The destination information guide means guides information on the walking route from the user position to the set destination or information on the set destination when the vehicle arrival determining means determines that the vehicle 2 has reached the set destination. . The point information guide means relates to a route from the position of the vehicle to the set destination at the time of transition from the connected state to the non-connected state when the vehicle arrival determining means determines that the vehicle has not reached the set destination. Guide information. The distance detecting means detects the distance from the user to the set destination after the vehicle arrival determining means determines that the vehicle 2 has reached the set destination.

  In addition to communication, the communication terminal 4 communicates via the transmission / reception circuit unit 13, so that traffic information transmitted from the Internet communication, traffic information center, for example, VICS (registered trademark) center, probe center, etc. It is also possible to receive traffic information composed of information such as regulation information and traffic accident information.

  In addition to user information (user ID, name, etc.) and map information related to the user who possesses the communication terminal 4, the memory 12 includes installed application programs, information guidance processing programs (FIGS. 3 and 4) described later, and the like. It is a stored storage medium. The map information may be acquired from the server by communication without being stored in the memory 12. The memory 12 may be configured by a hard disk, a memory card, an optical disk such as a CD or a DVD, and the like.

  The display 18 is disposed on one surface of the housing, and a liquid crystal display, an organic EL display, or the like is used. Then, a top screen for executing various applications installed in the communication terminal 4, screens related to the executed applications (Internet screen, mail screen, navigation screen, etc.), and various information such as images and videos are displayed. Is done. In particular, on the navigation screen displayed when the navigation application is executed, a map image including a road, traffic information, a guidance route from the departure place to the destination, guidance information along the guidance route, and the like are also displayed. Furthermore, in this embodiment, after the connection with the navigation device 3 that is in a connected state is canceled by turning off the ACC of the vehicle 2, the walking route to the destination set in the navigation device 3 Information on the destination, information on the route from the position of the vehicle 2 to the destination at the time of cutting (for example, traffic information such as traffic jams and accidents), and the like are displayed (see FIGS. 5 to 7).

  The input operation unit 19 is configured by a touch panel provided on the front surface of the display 18. Then, the communication terminal ECU 22 performs control to execute various corresponding operations based on an electrical signal output by pressing the touch panel or the like. In particular, in this embodiment, it is used for icon operation on the top screen, various selections and input operations in the activated application, and the like. The input operation unit 19 can also be constituted by various keys such as a number / character input key, a cursor key for moving a cursor for selecting displayed contents, and an enter key for confirming selection.

  Further, the GPS 20 can detect the current position and the current time of the communication terminal 4 (that is, the user) by receiving the radio wave generated by the artificial satellite. Moreover, it is good also as a structure provided with other apparatuses (for example, gyro sensor etc.) for detecting the present position and direction of the communication terminal 4 besides GPS20.

  The communication connector 21 is a communication device for transmitting and receiving various information to and from the navigation device 3 via the connected communication cable 5 when connected to the navigation device 3 via the communication cable 5. Specifically, information related to the destination set in the navigation device 3, information related to the guidance route set in the navigation device 3, the determination result of arrival of the vehicle at the destination, vehicle speed, etc. are communicated from the navigation device 3. It is transmitted to the terminal 4. Instead of the communication connector 21, an infrared communication device capable of infrared communication with the navigation device 3 may be provided.

  Next, an information guidance processing program executed in the communication terminal 4 constituting the route guidance system 1 having the above configuration will be described with reference to FIGS. 3 and 4 are flowcharts of the information guidance processing program according to the present embodiment. Here, the information guidance processing program is executed after the power of the communication terminal 4 is turned on, and after the connection between the communication terminal 4 and the navigation device 3 is disconnected, it is necessary for the user in consideration of the subsequent user situation. It is a program that identifies and guides information. Note that the programs shown in the flowcharts of FIGS. 3 and 4 below are stored in the memory 12 or the like included in the communication terminal 4 and executed by the CPU 11.

  First, in step (hereinafter abbreviated as S) 1, the CPU 11 determines whether or not the communication terminal 4 is connected to the navigation device 3 so as to be capable of bidirectional communication (hereinafter referred to as a connected state). Specifically, when both the navigation device 3 and the communication terminal 4 are turned on and are connected to each other by the communication cable 5, it is determined that the connection state is established. In the case where a transmission / reception unit for performing wireless communication such as infrared rays is provided, a connection may be made by wireless communication such as infrared rays instead of a wired cable.

  And when it determines with the communication terminal 4 being a connection state (S1: YES), it transfers to S2. On the other hand, when it is determined that the communication terminal 4 is not in a connected state (S1: NO), the information guidance processing program is terminated.

  In S2, the CPU 11 receives various information from the navigation device 3 in the connected state. Specifically, information (position information, name, facility ID, etc.) related to a destination set by the navigation device 3 (hereinafter referred to as a set destination), information related to a guide route set by the navigation device 3, navigation device The vehicle information (the current position of the vehicle, the vehicle speed, etc.) relating to the vehicle 2 on which the vehicle 3 is mounted is received from the navigation device 3.

  Next, in S <b> 3, the CPU 11 releases the connection state between the navigation device 3 and the communication terminal 4, and whether or not the communication terminal 4 has shifted to a state where the communication terminal 4 cannot perform two-way communication with the navigation device 3 (hereinafter referred to as a non-connection state). Determine whether. As a factor for the transition from the connected state to the non-connected state, when the power of the navigation device 3 (that is, the ACC of the vehicle 2) is turned off, when the communication terminal 4 is turned off, the communication cable 5 is disconnected. There is a case.

  When it is determined that the communication terminal 4 has shifted from the connected state to the disconnected state (S3: YES), the process proceeds to S4. On the other hand, when it is determined that the communication terminal 4 is continuously connected (S3: NO), the process returns to S2.

  In S <b> 4, the CPU 11 determines whether or not the communication terminal 4 has shifted from the connected state to the disconnected state particularly when the ACC of the vehicle 2 is turned off.

  When it is determined that the communication terminal 4 has shifted from the connected state to the disconnected state by turning off the ACC of the vehicle 2 (S4: YES), the process proceeds to S5. On the other hand, when it is determined that the communication terminal 4 has shifted from the connected state to the non-connected state due to a factor other than turning off the ACC of the vehicle 2 (S4: NO), the process returns to S11.

  In S <b> 5, the CPU 11 determines whether or not the vehicle 2 has reached the set destination set in the navigation device 3 when the communication terminal 4 shifts from the connected state to the disconnected state. Specifically, when the distance from the vehicle 2 to the set destination is less than a predetermined distance (second distance), it is determined that the vehicle 2 has reached the set destination. The second distance is set based on the accuracy of GPS and the like, for example, 200 m.

  The determination at S5 is based on the current position of the user detected by the GPS 20 of the communication terminal 4 (which matches the current position of the vehicle at the determination time of S5) and the position information of the set destination received at S2. 4 or the destination arrival determination result by the navigation device 3 may be received from the navigation device 3 in S2, and the communication terminal 4 may perform the determination in S5 based on the received determination result. good.

  When it is determined that the vehicle 2 has reached the set destination set in the navigation device 3 when the communication terminal 4 shifts from the connected state to the disconnected state (S5: YES). To S8. On the other hand, when it is determined that the vehicle 2 has not reached the set destination set in the navigation device 3 when the communication terminal 4 shifts from the connected state to the disconnected state (S5: NO). To S6.

  In S <b> 6, the CPU 11 estimates that the user temporarily gets out of the vehicle 2 in order to take a break or a detour before the set destination. Therefore, as the guidance information corresponding to the user's situation, the facility corresponding to the position where the vehicle has stopped (that is, the position of the vehicle at the time of transition from the connected state to the disconnected state, which also corresponds to the current position of the user). The information is specified based on the map information, and information (point information) about the facility is acquired. Furthermore, information on the remaining route (that is, the route from the position of the vehicle to the set destination at the time of transition from the connected state to the non-connected state) is acquired. The point information includes, for example, the facility name of the facility corresponding to the position where the vehicle stops, event information, coupon information, usage fee, business hours, distance from the current position, required time, etc., depending on the type of facility. Change the information to be acquired. For example, you can get coupon information at convenience stores and fast food stores, information about events, usage fees, event schedules at event venues, and recommended products from the product market at the product market. If it is a park, it acquires not only the park information but also the location information of the toilets in the park. That is, information (point information) related to the facility corresponding to the point where the vehicle stops (the current position of the user) is acquired. Further, as information on the remaining route, there is traffic information (for example, traffic jam information, accident information, regulation information) at the present time of the remaining route. Further, the remaining route may be displayed on a map. As information acquisition sources, information acquired in advance from the navigation device 3 may be stored in the memory 12 and read out from the memory 12, or may be acquired by communication from an external server or the like. It is good also as a structure.

  Thereafter, in S7, the CPU 11 displays the information acquired in S6 on the display 18. As a result, it is possible to provide necessary information to the user according to the current situation of the user (a situation where the user has temporarily got off the vehicle 2 to take a break or a detour) and the current position of the user. .

  Here, FIG. 5 is a diagram showing an example of the guidance information screen 31 displayed on the display 18 in S7. The guidance information screen 31 shown in FIG. 5 is displayed when the point where the vehicle stops (the current position of the user) is “XX convenience store”, and information on the “XX convenience store” where the user is currently located. At the same time, the current traffic information of the remaining route is also displayed. As a result, even when the user temporarily gets off the vehicle 2, the user can grasp information on the facility where the user is currently located, and can also grasp information on the remaining route necessary after resuming traveling. .

  On the other hand, in S <b> 8, the CPU 11 performs guidance for urging to remove the communication terminal 4 from the navigation device 3. Specifically, a voice guidance “Please remove the terminal from the navigation” is output, or a sentence with the same content is displayed on the display 18.

  Thereafter, in S9, the CPU 11 determines whether or not the communication cable 5 has been disconnected from the communication connector 21 of the communication terminal, that is, whether or not the communication terminal 4 has been removed from the navigation device 3. Specifically, after the process of S8 is performed, a displacement of a certain amount or more is detected by the GPS 20 included in the communication terminal 4, or a displacement of a certain angle or more is detected by the gyro sensor included in the communication terminal 4. In this case, it is determined that the communication terminal 4 has been removed from the navigation device 3.

  And when it determines with the communication terminal 4 having been removed from the navigation apparatus 3 (S9: YES), it transfers to S10. On the other hand, if it is determined that the communication terminal 4 has not been removed from the navigation device 3 (S9: NO), the process waits until it is removed.

  In S10, the CPU 11 cancels the guidance performed in S8. Thereafter, the process proceeds to S13.

  On the other hand, the communication terminal 4 shifts from the connected state to the unconnected state due to a factor other than the ACC off of the vehicle 2 in S4 (for example, when the communication terminal 4 is powered off or the communication cable 5 is disconnected). In S <b> 11 that is executed when it is determined that the communication terminal 4 has changed, the CPU 11 determines whether or not the vehicle speed of the vehicle 2 is less than a predetermined speed (for example, 10 km) when the communication terminal 4 shifts from the connected state to the disconnected state. Note that the vehicle speed of the vehicle 2 is periodically acquired from the navigation device 3 in the connected state in S2.

  And when it determines with the vehicle speed of the vehicle 2 being less than predetermined speed when the communication terminal 4 transfers from a connection state to a non-connection state (S11: YES), it transfers to S12, with respect to it. When it is determined that the vehicle speed of the vehicle 2 is equal to or higher than the predetermined speed when the communication terminal 4 shifts from the connected state to the disconnected state (S11: NO), the ACC of the vehicle 2 is immediately turned off in the future. It is determined that the guidance is continuously performed in the navigation device 3, and the information guidance process is terminated without performing any particular guidance in the communication terminal 4.

  In S12, the CPU 11 determines whether the distance from the vehicle 2 to the set destination is within the predetermined distance or the required time is within the predetermined time when the communication terminal 4 shifts from the connected state to the non-connected state. Note that the current position of the vehicle 2 at the time when the communication terminal 4 shifts from the connected state to the disconnected state may be acquired from the navigation device 3 in S2 or may be detected by the GPS 20 of the communication terminal 4. .

  When it is determined that the distance from the vehicle 2 to the set destination is within the predetermined distance or the required time is within the predetermined time when the communication terminal 4 shifts from the connected state to the non-connected state (S12: YES) Is determined that the communication terminal 4 has been removed from the navigation device 3 by the user immediately before the ACC of the vehicle 2 is turned off, and the process proceeds to S13, whereas the communication terminal 4 is disconnected from the connected state. When it is determined that the distance from the vehicle 2 to the set destination is equal to or longer than the predetermined distance and the required time is equal to or longer than the predetermined time (S12: NO), the ACC of the vehicle 2 will be immediately It is determined that the guidance is not continuously turned off in the navigation device 3, and the information guidance process is terminated without any particular guidance in the communication terminal 4.

  In S <b> 13, the CPU 11 acquires the current position of the communication terminal 4 (that is, the user) based on the detection result of the GPS 20. Note that the current position of the vehicle 2 at the time when the communication terminal 4 shifts from the connected state to the disconnected state may be acquired as the current position of the user.

  Next, in S14, the CPU 11 detects the distance from the user to the set destination based on the current position of the user acquired in S13 and the position information of the set destination acquired in S2. Note that the distance from the user to the set destination may be a straight line distance or a road distance.

  Thereafter, in S15, the CPU 11 determines whether or not the distance from the user detected in S14 to the set destination is less than a predetermined distance (first distance). The first distance is set based on the accuracy of GPS and the like, but is shorter than the second distance, for example, 50 m.

  And when it determines with the distance from the user detected by said S14 being a setting destination being less than 1st distance (S15: YES), from a position where the user got off the vehicle 2 to a setting destination It is determined that the distance is very close, and the process proceeds to S18. On the other hand, when it is determined that the distance from the user detected in S14 to the set destination is equal to or more than the first distance (S15: NO), the position from the position where the user got off the vehicle 2 to the set destination is displayed. It is determined that the distance is some distance away, and the process proceeds to S16.

  In S <b> 16, the CPU 11 estimates that the user has arrived at the set destination, but the distance from the position where the user got off the vehicle to the set destination is some distance away, and guidance of the walking route to the set destination is necessary. To do. Therefore, a walking route from the current position of the user to the destination is searched as guidance information corresponding to the user. Specifically, the walking route is searched based on the current position of the user acquired in S13, the position information of the set destination acquired in S2, and the map information. In addition, it is good also as a structure which transmits a user's present position and the positional information on a setting destination to an external server, and performs a route search in an external server.

  Thereafter, in S17, the CPU 11 displays the walking route acquired in S16 on the display 18. As a result, provide the user with necessary information according to the current situation of the user (a situation in which the user has arrived near the destination but needs to move to the destination by a certain distance on foot). Is possible. In S17, information related to the set destination may be provided in addition to the walking route. Further, the walking route guidance in S17 may be performed only when the communication terminal 4 shifts from the connected state to the non-connected state, and thereafter the distance from the user to the set destination is less than the first distance. You may make it continue until it becomes. Furthermore, when the distance from the user to the set destination is less than the first distance, the guidance for walking route guidance may be terminated and information about the set destination may be provided.

  Here, FIG. 6 is a diagram showing an example of the guidance information screen 32 displayed on the display 18 in S17. The guide information screen 32 shown in FIG. 6 includes a map image 33 around the current position of the user, a current position mark 34 indicating the current position of the user, a walking route 35, and a destination mark 36 indicating the position of the set destination. And are displayed respectively. As a result, the user can grasp the walking route to the destination even if the user does not know how to get to the destination after getting off the vehicle 2.

  On the other hand, in S18, the CPU 11 determines that the user arrives at the set destination and the distance from the position where the user got off the vehicle to the set destination is very close, and does not require guidance on a walking route to the set destination. Presume that there is. Therefore, information about the set destination where the user arrives is acquired as guidance information corresponding to the user. Examples of information related to the set destination include the facility name of the set destination, event information, coupon information, usage fees, business hours, and the like, and the information to be acquired is changed depending on the type of the facility at the set destination. For example, you can get coupon information at convenience stores and fast food stores, information about events, usage fees, event schedules at event venues, and recommended products from the product market at the product market. If it is a park, it acquires not only the park information but also the location information of the toilets in the park. As information acquisition sources, information acquired in advance from the navigation device 3 may be stored in the memory 12 and read out from the memory 12, or may be acquired by communication from an external server or the like. It is good also as a structure.

  Thereafter, in S19, the CPU 11 displays the information acquired in S18 on the display 18. As a result, it is possible to provide the user with necessary information according to the current situation of the user (a situation where the user arrives near the destination and does not need to provide guidance on the walking route to the destination).

  Here, FIG. 7 is a diagram showing an example of the guidance information screen 41 displayed on the display 18 in S19. The guidance information screen 31 shown in FIG. 7 is displayed when the set destination is “XX restaurant”, and information regarding the set destination “XX restaurant” is displayed. As a result, it becomes possible for the user to grasp information related to the reached destination.

As described above in detail, in the route guidance system 1 according to the present embodiment, when the navigation device 3 and the communication terminal 4 shift from the connected state in which bidirectional communication is possible to the disconnected state, the transition is performed. It is determined whether or not the vehicle 2 has reached the set destination set in the navigation device 3 at the time (S5), and if it is determined that the vehicle 2 has reached the set destination, the communication terminal In step 4, information on the walking route from the user position to the set destination or information on the set destination is guided (S17, S19). On the other hand, when it is determined that the vehicle 2 has not reached the set destination, the communication terminal 4 guides the point information of the position where the vehicle has stopped and the information about the route to the remaining set destination (S7). Therefore, by changing the content of the guidance performed in the communication terminal 4 after the disconnection depending on whether or not the vehicle 2 arrives at the set destination when the connection between the navigation device 3 and the communication terminal 4 is disconnected, When the connection between the navigation device 3 and the communication terminal 4 is disconnected (that is, when the user ends the operation of the vehicle 2) or after that, the communication terminal 4 can perform guidance required by the user. As a result, it is possible to perform more appropriate guidance by combining the navigation device 3 and the communication terminal 4.
Further, when it is determined that the vehicle 2 has arrived at the set destination when the connection between the navigation device 3 and the communication terminal 4 is disconnected, the distance from the user to the set destination is the first distance. In the case of the above, the walking route from the user's position to the set destination is guided, and when the distance from the user to the set destination is less than the first distance, information on the set destination is guided, so the user However, it is possible to guide the walking route when the vehicle arrives in the vicinity of the set destination but needs to walk to the set destination by a certain distance. On the other hand, it is possible to reach the nearest destination of the set destination by vehicle, and it is possible to provide information on the set destination without guiding the unnecessary walking route in the situation where the guidance of the walking route to the set destination is unnecessary. It becomes.
Further, when the distance from the vehicle 2 to the set destination is less than the second distance, which is also the first distance, it is determined that the vehicle 2 has reached the set destination. It is possible to appropriately determine whether or not the vehicle has arrived at the set destination while considering the error. Even if it is determined that the vehicle has arrived at the destination, it is possible to guide the walking route with the communication terminal afterwards in a necessary situation. Even when it is set to a long distance, the user can be reliably guided to the set destination.
In addition, when it is detected that the navigation device 3 and the communication terminal 4 shift from the connected state to the non-connected state due to the ACC of the vehicle 2 being turned off, the communication terminal 4 is guided, so that the user can When the operation is terminated, it is possible to perform guidance necessary for the user at the communication terminal 4 based on the situation of the user at that time.
In addition, the navigation device 3 and the communication terminal 4 are connected in a situation where the vehicle speed of the vehicle 2 is less than the predetermined speed and the distance from the vehicle 2 to the set destination is within a predetermined distance or the required time is within a predetermined time. When the communication terminal 4 is guided when it is detected that the state has shifted to the disconnected state, the communication terminal 4 is removed from the navigation device 3 by the user immediately before the ACC of the vehicle 2 is turned off. Then, based on the situation of the user at that time, it is possible to perform guidance required by the user in the communication terminal 4 thereafter.

Note that the present invention is not limited to the above-described embodiment, and various improvements and modifications can be made without departing from the scope of the present invention.
For example, in the present embodiment, whether or not the vehicle has arrived at the destination is determined based on whether or not the distance from the vehicle to the destination is less than the second distance. You may determine based on conditions other than this distance. In the present embodiment, the second distance is set to 200 m and the first distance is set to 50 m. However, the value can be appropriately set in a range where the first distance is shorter than the second distance.

  In this embodiment, the information terminal processing program (FIGS. 3 and 4) is configured to be executed by the communication terminal 4. However, some or all of the processing of each program is different from each other (navigation device 3 or an external center or the like). ) May be executed.

DESCRIPTION OF SYMBOLS 1 Route guidance system 2 Vehicle 3 Navigation apparatus 4 Communication terminal 11 CPU
12 memory 22 communication terminal ECU

Claims (7)

A route guidance system composed of an in-vehicle device that guides traveling based on a route to a set destination and a communication terminal owned by a user who is a vehicle occupant,
Disconnect detection means for detecting that the in-vehicle device and the communication terminal are shifted from a connected state in which bidirectional communication is possible to a disconnected state;
The destination set in the in-vehicle device at the time of transition from the connected state to the disconnected state when the disconnection detecting unit detects that the connected state has shifted to the disconnected state. Vehicle arrival determination means for determining whether or not a set destination is reached,
When the vehicle arrival determination means determines that the vehicle has arrived at the set destination, the communication terminal provides information on the walking route from the user position to the set destination or the set destination. Destination information guidance means for guiding;
When the vehicle arrival determination means determines that the vehicle has not reached the set destination, the point information of the position of the vehicle at the time of transition from the connected state to the disconnected state in the communication terminal A route guidance system comprising point information guidance means for guiding information related to a route from the position of the vehicle to the set destination. After the vehicle arrival determining means determines that the vehicle has reached the set destination, it has a distance detecting means for detecting a distance from the user to the set destination,
The destination information guide means is:
When the distance from the user to the set destination is a first distance or more, guide the walking route from the user's position to the set destination,
The route guidance system according to claim 1, wherein when the distance from the user to the set destination is less than a first distance, information on the set destination is guided.   The vehicle arrival determination means determines that the vehicle has reached the set destination when the distance from the vehicle to the set destination is less than a second distance that is longer than the first distance. The route guidance system according to claim 2.   The disconnect detection means detects that the vehicle-mounted device and the communication terminal are shifted from the connected state to the disconnected state when the ACC of the vehicle is turned off. The route guidance system according to claim 3. Vehicle speed acquisition means for acquiring the vehicle speed of the vehicle;
In the situation where the vehicle speed of the vehicle is less than a predetermined speed and the distance from the vehicle to the set destination is within a predetermined distance or a required time is within a predetermined time, the disconnect detection means The route guidance system according to any one of claims 1 to 3, wherein it detects that a communication terminal has shifted from the connected state to the disconnected state. A disconnect detection means for detecting a transition from a connected state connected to an in-vehicle device that guides vehicle travel based on a route to a set destination to enable bidirectional communication;
The destination set in the in-vehicle device at the time of transition from the connected state to the disconnected state when the disconnection detecting unit detects that the connected state has shifted to the disconnected state. Vehicle arrival determination means for determining whether or not a set destination is reached,
Destination information that guides the walking route from the user's position to the set destination or information about the set destination when the vehicle arrival determining means determines that the vehicle has reached the set destination Guidance means;
When the vehicle arrival determination means determines that the vehicle has not reached the set destination, the location information of the vehicle and the position of the vehicle at the time of transition from the connected state to the disconnected state And a point information guide means for guiding information related to a route from the destination to the set destination. In the communication terminal,
A disconnection detection function for detecting a transition from a connected state connected to an on-vehicle device that guides vehicle travel based on a route to a set destination to enable bidirectional communication, and a disconnected state;
The destination set in the in-vehicle device at the time of transition from the connected state to the disconnected state when the disconnection detecting function detects that the connected state has shifted to the disconnected state. A vehicle arrival determination function for determining whether or not a set destination is reached,
Destination information that guides the walking route from the user's position to the set destination or information related to the set destination when it is determined by the vehicle arrival determination function that the vehicle has reached the set destination Guide function,
When the vehicle arrival determination function determines that the vehicle has not reached the set destination, the location information of the vehicle and the position of the vehicle at the time of transition from the connected state to the disconnected state A point information guidance function for guiding information on a route from the destination to the set destination;
A computer program for executing

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