Vehicle-mounted devices

Abstract

The present invention comprises: a navigation unit (111) that guides a host vehicle (V) in accordance with a travel route (RA); an area information extraction unit (112) that extracts a communication difficulty area (WR) as an area in which a communication state deteriorates, and a predetermined restricted area (GF), these areas being included on the travel route (RA); an assessment unit (113) that assesses whether the restricted area (GF) is included in the communication difficulty area (WR); and a notification unit (130) that, before the host vehicle (V) enters the communication difficulty area (WR) in cases where the restricted area (GF) is included in the communication difficulty area (WR), notifies a portable terminal (30) in advance, as a predetermined notification destination, that the host vehicle (V) is going to enter the restricted area (GF).

Description

【Technical Field】 【0001】 The present invention relates to an in-vehicle device. 【Background Art】 【0002】 In recent years, as an in-vehicle device that takes into account the safety of vehicle occupants, a system that communicates with a server installed outside the vehicle to notify the server of, for example, an accident that has occurred in the vehicle has become widespread. 【0003】 However, for example, when the vehicle is in an area such as a wide tunnel or a place with poor radio wave conditions, there is a problem that it may be difficult for the in-vehicle device to communicate with the server and issue necessary notifications at necessary locations. 【0004】 In response to the above problem, as an emergency notification system, it includes an in-vehicle device mounted on a vehicle and a server capable of communicating with the in-vehicle device. The in-vehicle device includes a position specifying unit for specifying the vehicle position, an in-vehicle communication unit capable of wireless communication with the server, an in-vehicle storage unit for storing a radio wave map indicating an area where wireless communication is possible, a non-communication specifying unit for specifying a non-communication travel route that is a travel route where wireless communication is difficult, a standby time calculation unit for calculating a standby time that is longer than the time required for the vehicle to travel on the non-communication travel route, a precall transmission unit for transmitting a precall including the standby time to the server before the vehicle enters the non-communication travel route, and a cancellation transmission unit for transmitting a cancellation notification for canceling the precall to the server when the vehicle travels through the non-communication travel route. A technique is disclosed (see, for example, Patent Document 1). 【Prior Art Documents】 【Patent Documents】 【0005】 【Patent Document 1】 Japanese Patent Application Laid-Open No. 2020-119467 【Summary of the Invention】 【Problems to be Solved by the Invention】 【0006】 Furthermore, vehicle occupants may be restricted from entering areas designated as geofencing zones. If a vehicle equipped with a vehicle-mounted device that has designated geofencing zones enters such a zone, the device may, for example, notify the occupants of the vehicle and also notify designated recipients, such as the vehicle owner who are outside the vehicle, that the vehicle has entered the restricted zone. 【0007】 However, the technology described in Patent Document 1 does not consider setting a restricted area as geofencing. Therefore, if the restricted area is located in an area where communication is difficult, the in-vehicle device has difficulty notifying a predetermined notifier outside the vehicle whether or not the vehicle has entered the restricted area. 【0008】 Therefore, the present invention has been made in view of the above-mentioned problems, and aims to send notifications to predetermined recipients at an appropriate time, even when restricted areas on the travel route are included in areas where communication is difficult. [Means for solving the problem] 【0009】 Embodiment 1: One or more embodiments of the present invention include: a navigation unit that guides the vehicle according to determined route information; an area information extraction unit that extracts areas where communication conditions deteriorate and predetermined restricted areas included in the determined route information; a determination unit that determines whether the restricted area is included in the area where communication conditions deteriorate; and, if the restricted area is included in the area where communication conditions deteriorate, the vehicle notifies a predetermined destination before entering the area where communication conditions deteriorate. before Note A notification unit that provides prior notice of entry into a restricted area, Driving conditions of the determined driving route A driving information acquisition unit that acquires information, and based on the driving information of the determined driving route acquired, Then, calculate the time required from the aforementioned prior notification until passing through the area where the communication conditions deteriorate. The system includes a time calculation unit, and the notification unit includes the time from the previous notification to the next notification. First notification We are proposing in-vehicle devices. 【0010】 Embodiment 2: Embodiments 1 or more of the present invention are, The notification unit detects the deterioration of the communication conditions. At the point when passing through the area, the status of entry into the restricted area is determined in advance. Notify the recipient We are proposing in-vehicle devices. 【0011】 Embodiment 3: Embodiments 1 or more of the present invention are, Regarding access to the aforementioned restricted area , including information regarding transit or stay We are proposing in-vehicle devices. 【0012】 Embodiment 4: One or more embodiments of the present invention include one or more processors, one or more memories communicably connected to the one or more processors, and the vehicle entering a predetermined restricted area. advance The system includes a notification unit that provides notifications, and one or more of the memories contain map information about the route, and areas where communication conditions are deteriorating. Information regarding Information , predetermined restricted area Information The system includes a storage unit that stores information including the following, and the one or more processors include a navigation unit that guides the vehicle according to the determined route information, and the determined Driving Route information The aforementioned Areas where communication conditions are deteriorating and The aforementioned An area information extraction unit for extracting restricted areas, a determination unit for determining whether the restricted area is included in the area where communication conditions deteriorate, and a notification control unit for controlling the notification unit, A driving information acquisition unit that acquires driving information of the determined driving route, and the acquired determination Based on the driving information of the specified driving route, the area where the communication conditions deteriorate from the prior notification. It includes a time calculation unit that calculates the time required to pass through a certain point, The notification control unit, when the restricted area is included in the area where communication conditions deteriorate, will notify a predetermined recipient before the vehicle enters the area where communication conditions deteriorate. The aforementioned Entering the restricted area Prior notice will be given, and the period from the prior notice to the next notice The notification unit controls the notification to include the interval in the notification. We are proposing in-vehicle devices. 【0013】 Embodiment 5; One or more embodiments of the present invention include one or more processors, one or more memories communicatively connected to the one or more processors, and a notification unit configured to notify that the host vehicle enters a predetermined restricted area. The one or more memories include a storage unit configured to store map information related to a route, an area where communication deteriorates, and information including the predetermined restricted area. The one or more processors include a navigation unit configured to guide the host vehicle according to the determined route information, an area information extraction unit configured to extract an area where communication deteriorates and a predetermined restricted area included in the determined route information, a determination unit configured to determine whether the restricted area is included in the area where communication deteriorates, and a notification control unit configured to control the notification unit. The notification control unit is configured to, when the restricted area is included in the area where communication deteriorates, notify a predetermined notification destination in advance before the host vehicle enters the area where communication deteriorates that the host vehicle enters the predetermined restricted area. 【Advantages of the Invention】 【0014】 According to one or more embodiments of the present invention, even when a restricted area on a travel route is included in an area where communication is difficult, it is possible to notify a predetermined notification destination at an appropriate timing. 【Brief Description of the Drawings】 【0015】 [Figure 1] It is a diagram showing the configuration of a vehicle communication system according to a first embodiment of the present invention. [Figure 2] It is a diagram showing the configuration of an in-vehicle device according to a first embodiment of the present invention. [Figure 3] It is a diagram showing a travel route of a host vehicle equipped with an in-vehicle device according to a first embodiment of the present invention. [Figure 4] It is a flowchart of an in-vehicle device according to a first embodiment of the present invention. [Figure 5]This figure shows the configuration of a vehicle communication system according to a second embodiment of the present invention. [Figure 6] This figure shows the configuration of an in-vehicle device according to a second embodiment of the present invention. [Figure 7] This figure shows the travel path of a vehicle equipped with an in-vehicle device according to the second embodiment of the present invention. [Figure 8] This figure shows the travel time along the route of a vehicle equipped with an in-vehicle device according to the second embodiment of the present invention. [Figure 9] This is a processing flow diagram of an in-vehicle device according to a second embodiment of the present invention. [Modes for carrying out the invention] 【0016】 Using Figures 1 to 9, the in-vehicle devices 10 and 10A installed in the vehicle communication system 1 according to this embodiment will be described. 【0017】 <First Embodiment> The in-vehicle device 10 according to this embodiment will be described with reference to Figures 1 to 4. 【0018】 <About Vehicle Communication System 1> As shown in Figure 1, the vehicle communication system 1, which includes the in-vehicle device 10 according to this embodiment, is configured to include the in-vehicle device 10 installed in the vehicle V, the server 20 located outside the vehicle V, and the mobile terminal 30 for sending and receiving information. 【0019】 In this embodiment, the in-vehicle device 10 controls the overall operation of the vehicle communication system 1 based on a control program stored in a ROM (Read-Only Memory) installed within the device. The in-vehicle device 10 also controls the system to notify a predetermined mobile terminal 30 via the communication network NT when the vehicle V enters a restricted area GF used for geofencing. In this context, the restricted area GF is an area pre-configured as geofencing in the onboard device 10 that restricts the vehicle V from entering. Details of the in-vehicle device 10 will be described later. 【0020】 Server 20 is located outside the vehicle V and stores data used for driver assistance control or autonomous driving control, such as map information, surrounding area information, and traffic congestion information. Server 20 and the in-vehicle device 10 are connected by wireless communication via a wireless communication base station (not shown). Server 20 transmits data to the in-vehicle device 10 based on requests from the in-vehicle device 10. 【0021】 The mobile terminal 30 is, for example, a terminal owned by the owner of the vehicle V or the guardian of the occupants, who is designated as a notification recipient in advance, and receives notifications transmitted from the in-vehicle device 10. 【0022】 <About the in-vehicle device 10> As shown in Figure 2, the in-vehicle device 10 is configured to include a processor unit 100 and a notification unit 130. 【0023】 <Configuration of the processor unit 100> The processor unit 100 comprises a processor 110 and a memory 120. The processor unit 100 controls the overall operation of the in-vehicle device 10 based on a control program stored in a ROM (Read-Only Memory) mounted in the memory 120. 【0024】 The processor 110 is configured to include a navigation unit 111, an area information extraction unit 112, a determination unit 113, and a notification control unit 114. The memory 120 is configured to include the storage unit 121. Furthermore, the navigation unit 111, area information extraction unit 112, determination unit 113, notification control unit 114, and memory 120 of the processor 110 are connected via the bus line BL1. 【0025】 The navigation unit 111 guides its own vehicle V according to the determined route information, which is the driving route RA. In other words, the navigation unit 111 sets a driving route RA from the current location of the vehicle V to the destination based on the map information and traffic information received from the server 20, and performs normal driving route guidance to guide the vehicle V to the destination. Furthermore, if, for example, a restricted area GF has been pre-configured in the in-vehicle device 10, the navigation unit 111 will provide guidance for a normal driving route that takes the restricted area GF into consideration. Furthermore, the navigation unit 111 receives, for example, a GPS (Global-Positioning-System) signal. Equipped with a transmitter, it detects the current position of its own vehicle V based on radio waves received from GPS satellites. The current location information of the vehicle V identified by the navigation unit 111 is transmitted via the bus line BL1 to the area information extraction unit 112, the determination unit 113, and the notification control unit 114. 【0026】 The area information extraction unit 112 extracts communication difficulty areas WR and restricted areas GF included in the travel route RA. For example, as shown in Figure 3, if the communication difficulty area WR and restricted area GF are included in the map data downloaded from the server 20, the area information extraction unit 112 extracts the communication difficulty area WR and restricted area GF included in the map data and transmits information regarding the communication difficulty area WR and restricted area GF to the determination unit 113 via the bus line BL1. Furthermore, the area information extraction unit 112 extracts communication difficulty areas (WR) by obtaining the electric field strength of the radio waves used for wireless communication with the server 20 from the notification unit 130. Specifically, the area information extraction unit 112 obtains, for example, electric field strength information of transmitted and received radio waves or error rate information in communication data from the notification unit 130. The area information extraction unit 112 determines whether the electric field strength or error rate is equal to or greater than a predetermined value based on a predetermined value of electric field strength or a predetermined value of error rate in communication data that is stored in the memory 120 in advance. Then, if the electric field strength or error rate falls below a predetermined value, the area information extraction unit 112 transmits information to the determination unit 113 indicating that the vehicle V is approaching a communication difficulty area WR. Furthermore, if the electric field strength or error rate changes from below a predetermined value to above a predetermined value, the area information extraction unit 112 transmits information to the determination unit 113 indicating that the vehicle V has passed through a communication difficulty area WR. 【0027】 The determination unit 113 determines whether the restricted area GF is included in the communication difficulty area WR. Specifically, the determination unit 113 determines, for example, whether there is a restricted area NF where communication is difficult, in which the restricted area GF is included in the communication-difficult area WR, based on information about the communication-difficult area WR transmitted from the area information extraction unit 112, as shown by the dot hatching in Figure 3. Furthermore, the navigation unit 111 acquires the travel route RA and determines whether the travel route RA passes through a restricted area NF where communication is difficult. Furthermore, the determination unit 113 determines whether the vehicle V has approached or passed through the communication difficulty area WR, based on the information transmitted from the area information extraction unit 112 indicating that the vehicle V has approached or passed through the communication difficulty area WR. The determination unit 113 transmits the determination result to the notification control unit 114. 【0028】 If the restricted area GF is included in the communication difficulty area WR, the notification control unit 114 will notify a predetermined notification destination via the notification unit 130 in advance that the vehicle V will enter the restricted area GF before the vehicle V enters the communication difficulty area WR. Specifically, for example, the travel route of your own vehicle V. RA If the travel route RA is determined to be the travel route RA indicated by the thick solid arrow in Figure 3, the notification control unit 114 receives a determination result from the determination unit 113 indicating whether or not there is a restricted area NF in the travel route RA where communication is difficult. Based on information that there is a restricted area NF on the travel route RA where communication is difficult, the notification control unit 114 performs control to notify a predetermined notification recipient that its own vehicle V is entering the restricted area GF when it is traveling through the approach detection point VP1. 【0029】 In this context, the proximity detection point VP1 is the point where a predetermined notification is sent to a designated recipient before the vehicle V enters the communication difficulty area WR. Specifically, for example, it indicates a point that is a predetermined distance before the point WP1 where the communication-difficult area WR and the travel path RA first intersect on the map in the direction of travel of the vehicle V, which is the point where entry into the communication-difficult area occurs. The predetermined distance is, for example, 1 km from the point WP1 where the vehicle enters a communication-difficult area on the driving route RA. The proximity determination point VP1 is the point where the notification control unit 114 receives a determination from the determination unit 113 that the vehicle V is approaching a communication-difficult area WR. 【0030】 Based on the control of the notification control unit 114, the notification unit 130 notifies the mobile terminal 30 in advance that the vehicle V will enter the restricted area GF before the vehicle V enters the communication difficulty area WR, if the restricted area GF is included in the communication difficulty area WR. The notification unit 130 is equipped with an in-vehicle communication unit (not shown), and the notification unit 130 connects to the server 20 via wireless communication using the communication network NT, based on the control of the notification control unit 114. Furthermore, the notification unit 130 communicates with a server 20 outside the vehicle based on the control of the notification control unit 114, and downloads data from the server 20 that is used, for example, to determine the driving route, such as map information, surrounding area information, and traffic congestion information. The downloaded data is stored in the memory 120. <Processing by the in-vehicle device 10> The processing of the in-vehicle device 10 according to this embodiment will be explained using Figure 4. 【0031】 The navigation unit 111, based on the current position of its own vehicle V and the destination entered by the occupant, causes a route search unit (not shown) to search for candidate routes and sets them as the driving route RA (step S110). When the area information extraction unit 112 receives notification of the driving route RA from the navigation unit 111, it obtains information on communication difficulty areas WR and restricted areas GF on the driving route RA from the storage unit 121 based on the information on the driving route RA that was notified, and transmits the information to the determination unit 113. 【0032】 The determination unit 113 checks whether or not there is a communication difficulty area WR on the travel route RA (step S120). Then, the determination unit 113 checks whether or not a restricted area GF exists on the travel path RA (step S130). 【0033】 The determination unit 113 determines whether or not there is a restricted area NF on the travel route RA where communication is difficult (step S140). 【0034】 If the determination unit 113 determines that there is no restricted area NF on the travel route RA where communication is difficult ("NO" in step S140), it transitions the process to normal travel route guidance (step S170) and terminates the process. 【0035】 On the other hand, if the determination unit 113 determines that there is a restricted area NF on the travel route RA where communication is difficult (YES in step S140), it determines whether the vehicle V is approaching the communication difficult area WR based on the information transmitted from the area information extraction unit 112 (step S150). 【0036】 If the determination unit 113 determines that its own vehicle V is not approaching the communication difficulty area WR (NO in step S150), it proceeds to step S150. 【0037】 On the other hand, if the determination unit 113 determines that the vehicle V is approaching the communication difficulty area WR (YES in step S150), it transmits information to the notification control unit 114 that the vehicle V is approaching the communication difficulty area WR, and the notification control unit 114, via the notification unit 130, sends information to the mobile terminal 30 that the vehicle V is approaching the communication difficulty area WR. Entering the restricted area GF The process is terminated by issuing a notification to that effect (step S160). 【0038】 <Effects and Actions> As described above, the in-vehicle device 10 according to this embodiment includes a navigation unit 111 that guides the vehicle V according to the driving route RA as determined route information, an area information extraction unit 112 that extracts communication difficulty area WR and predetermined restricted area GF as areas where communication conditions deteriorate within the determined driving route RA, a determination unit 113 that determines whether or not the restricted area GF is included in the communication difficulty area WR, and a notification unit 130 that, if the restricted area GF is included in the communication difficulty area WR, notifies a predetermined mobile terminal 30 that the vehicle V is entering the restricted area GF before the vehicle V enters the communication difficulty area WR. In other words, the navigation unit 111 determines the driving route RA and transmits the vehicle's current location information to the determination unit 113 and the notification control unit 114. The area information extraction unit 112 extracts the communication-difficult area WR and restricted area GF included in the driving route RA and transmits them to the determination unit 113. Based on the driving route RA, the vehicle's current location information, and the information regarding the communication-difficult area WR and restricted area GF, the determination unit 113 determines whether or not there is a communication-difficult restricted area NF included in the communication-difficult area WR within the restricted area GF. The determination unit 113 also determines whether or not there is a communication-difficult restricted area NF on the driving route RA. As a result, if there is a restricted area NF on the travel route RA where communication is difficult, the determination unit 113 transmits information to the notification control unit 114 indicating that there is a restricted area NF on the travel route RA where communication is difficult. The notification control unit 114 can then notify the mobile terminal 30 in advance via the notification unit 130 that the vehicle V is about to enter the restricted area GF when it is traveling at the approach determination point VP1, which is the vehicle's position before entering the communication-difficult area WR. Therefore, the route RA Restricted area above GF However, even if the area is included in a communication difficult zone, notifications can be sent to predetermined recipients at the appropriate time. 【0039】 <Second Embodiment> The in-vehicle device 10A according to this embodiment will be described with reference to Figures 5 to 9. 【0040】 <About Vehicle Communication System 1A> As shown in Figure 5, the vehicle communication system 1A, which includes the in-vehicle device 10A according to this embodiment, is configured to include the in-vehicle device 10A installed in the vehicle V, a server 20 located outside the vehicle V, and a mobile terminal 30. Note that components that are denoted by the same reference numerals as those in the first embodiment have similar functions, and therefore, a detailed explanation of them will be omitted. 【0041】 <Regarding the vehicle-mounted device 10A> As shown in Figure 6, the in-vehicle device 10A according to this embodiment is configured to include a processor unit 100A and a notification unit 130. 【0042】 <Configuration of Processor Unit 100A> The processor unit 100A comprises a processor 110A and a memory 120A. The processor unit 100A controls the overall operation of the in-vehicle device 10A based on a control program stored in a ROM (Read-Only Memory) mounted in the memory 120A. 【0043】 The processor 110A includes a navigation unit 111, an area information extraction unit 112, a determination unit 113A, a notification control unit 114A, a driving information acquisition unit 151, and a required time calculation unit 152. Furthermore, the memory 120A is configured to include the storage unit 121A. The navigation unit 111, area information extraction unit 112, determination unit 113A, notification control unit 114A, driving information acquisition unit 151, required time calculation unit 152, and storage unit 121A of the processor 110A are connected via the bus line BL2. 【0044】 The determination unit 113A determines whether the vehicle V is in or has passed through the communication difficulty area WR. Specifically, the determination unit 113A determines, for example, whether the vehicle V is in or has passed through the communication difficulty area WR, based on the current location information of the vehicle V transmitted from the navigation unit 111 and the information on the communication difficulty area WR transmitted from the area information extraction unit 112. The determination unit 113A notifies the determination result of the control unit 114 A Send to [destination]. 【0045】 If there is a restricted area NF in the driving route RA where communication is difficult, the notification control unit 114A obtains driving information for the driving route RA from the driving information acquisition unit 151, which will be described later. Furthermore, the notification control unit 114A obtains the time t2 required from the proximity detection point VP1 to the communication difficulty area passing point WP2 as the time from the previous notification to the next notification from the time calculation unit 152. Then, when the communication difficult area WR is passed, the notification control unit 114A notifies the predetermined notification destination of the required time t2 via the notification unit 130. Furthermore, when the vehicle passes through the communication-difficult area WR, the notification control unit 114A notifies a predetermined recipient via the notification unit 130 of the vehicle's driving information, which includes information about passing through or staying in the restricted area GF. 【0046】 Specifically, as shown in Figure 7, for example, the travel path of the vehicle V RA If a travel route RA indicated by a thick solid arrow is determined, the notification control unit 114A receives a determination result from the determination unit 113A regarding whether or not there is a restricted area NF in the travel route RA where communication is difficult. Based on information indicating that there is a restricted area NF in the travel route RA where communication is difficult, the notification control unit 114A performs control at the approach detection point VP1 to notify a predetermined notification destination. Furthermore, if the vehicle V enters the restricted area GF, the notification control unit 114A stores the vehicle V's driving information within the restricted area GF in the storage unit 121A. Then, after the vehicle V has passed through the communication-difficult area WR, it notifies a predetermined recipient of information regarding its entry into the restricted area GF, including information about its passage through or stay within the restricted area GF. Furthermore, the notification control unit 114A obtains the passage time for location information within the restricted area GF from the required time calculation unit 152 and stores it in the storage unit 121A. In this case, the driving information of the vehicle V is, for example, the points along the driving route RA and the time of passing through those points, as shown in Figure 8. Furthermore, if there is a restricted area NF where communication is difficult along the driving route RA, the driving information of the vehicle V includes, for example, the time Tgp1 passed through the restricted area entry point GP1 on the driving route RA, the time Tgp2 passed through the restricted area exit point GP2, the time Tst spent in the restricted area GF, the time t1 taken from the approach detection point VP1 to the communication difficulty area exit point WP2, and the time t2 taken to pass through the restricted area GF. The notification control unit 114A may also acquire traffic information for the driving route RA from the navigation unit 111 after the vehicle V has passed through the communication difficulty area WR, and notify the mobile terminal 30 via the notification unit 130 along with the vehicle V's driving information. 【0047】 The driving information acquisition unit 151 acquires driving information of its own vehicle V along the driving route RA. Specifically, the driving information acquisition unit 151 acquires driving information such as information on passing points along the driving route RA, information on the speed at which the vehicle V passes each point, driving stop information, and engine on / off information, and stores it in the storage unit 121A. 【0048】 The time calculation unit 152 calculates the time t1 from the approach detection point VP1 (as a prior notification) to the communication difficulty area passing point WP2, based on the driving information of the acquired driving route RA. Specifically, the time calculation unit 152, for example, if the vehicle V enters a communication difficulty area WR, The time Twp1 passed through the communication-difficult area at point WP1, and the communication-difficult area Time taken at rear checkpoint WP2 Twp2 The data is obtained and stored in the memory unit 121A. Furthermore, if your vehicle V enters the restricted area GF, Restricted area entry point GP1 keru Passing time Tgp1 and At the restricted area checkpoint GP2 The transit time Tgp2 is obtained and stored in the memory unit 121A. The time calculation unit 152 then calculates the time required between points along the travel route RA. The time required calculated by the time required calculation unit 152 can represent, for example, the time required t1 from the proximity detection point VP1 to the communication difficulty area passing point WP2, the time required t2 to pass through the restricted area GF, and the time t3 to pass through the communication difficulty area WR. Furthermore, the time calculation unit 152 may obtain traffic information such as congestion information for the travel route RA when the vehicle V passes through the communication difficulty area WR, and correct the time taken by the vehicle V within the communication difficulty area WR to a time taken into account the traffic information. 【0049】 <Processing of on-board device 10A> The processing of the in-vehicle device 10A according to this embodiment will be explained using Figure 9. 【0050】 The navigation unit 111 searches for candidate routes in a route search unit (not shown) based on the current position of the vehicle V and the destination entered by the occupant, and sets the route selected by the occupant as the driving route RA (step S210). 【0051】 When the area information extraction unit 112 receives notification of the driving route RA from the navigation unit 111, it receives information about the driving route RA from the storage unit 121A and identifies communication difficult area W on the driving route RA. R The system also acquires information regarding the restricted area GF and transmits the information to the determination unit 113A. The determination unit 113A checks whether or not a communication difficulty area WR exists on the travel route RA (step S220). Then, the determination unit 113A checks whether or not a restricted area GF exists on the travel path RA (step S230). 【0052】 The determination unit 113A determines whether or not there is a restricted area NF on the travel route RA where communication is difficult (step S240). 【0053】 If the determination unit 113A determines that there is no restricted area NF on the travel route RA where communication is difficult (NO in step S240), it transitions the process to normal travel route guidance (step S300) and terminates the process. 【0054】 On the other hand, if the determination unit 113A determines that there is a restricted area NF on the travel route RA where communication is difficult (YES in step S240), it determines whether the vehicle V has approached the communication difficult area WR based on the information transmitted from the area information extraction unit 112 (step S250). 【0055】 If the determination unit 113A determines that its own vehicle V is not approaching the communication difficulty area WR (NO in step S250), it proceeds to step S250. 【0056】 On the other hand, if the determination unit 113A determines that the vehicle V is approaching the communication difficulty area WR (YES in step S250), it transmits information to the notification control unit 114A that the vehicle V is approaching the communication difficulty area WR, and the notification control unit 114A, via the notification unit 130, sends information to the mobile terminal 30 that the vehicle V is approaching the communication difficulty area WR. Entering the restricted area GF A notification to that effect is issued (step S260). Then, the notification control unit 114A stores the driving information based on the location information of the vehicle V, the driving information of the vehicle V from the driving information acquisition unit 151, and the passage time and required time for each location from the required time calculation unit 152 in the storage unit 121A (step S270). 【0057】 The determination unit 113A determines, based on the information transmitted from the area information extraction unit 112, whether the vehicle V is in or has passed through the communication difficulty area WR (step S280). 【0058】 If the determination unit 113A determines that its own vehicle V is in the communication difficulty area WR (YES in step S280), it proceeds to step S280. 【0059】 On the other hand, if the determination unit 113A determines that its own vehicle V has passed through the communication difficulty area WR ("NO" in step S280), the determination unit 113A transmits information to the notification control unit 114A that its own vehicle V has passed through the communication difficulty area WR, and the notification control unit 114A notifies the mobile terminal 30 of the vehicle V's driving information via the notification unit 130 (step S290), and terminates the process. 【0060】 <Effects and Actions> As described above, the in-vehicle device 10A according to this embodiment includes a driving information acquisition unit 151 that acquires driving information of the driving route RA, and a required time calculation unit 152 that calculates the required time t1 from the approach determination point VP1, which is a point for prior notification, to the communication difficulty area passing point WP2, which is a point for passing through an area where communication conditions deteriorate, based on the driving information of the driving route RA that has been acquired. The notification unit 130 notifies the vehicle including the required time t1 from the approach determination point VP1 for prior notification to the communication difficulty area passing point WP2 for the next notification. In other words, the time required calculation unit 152 obtains the travel time for each location information along the route that can be traversed from the approach determination point VP1 to the communication difficulty area passing point WP2, based on the travel information of the travel route RA from the travel information acquisition unit 151, and calculates the time required. Then, when the communication difficulty area passing point WP2 is reached, the notification control unit 114A notifies the mobile terminal 30 via the notification unit 130, including the time required t1 calculated by the time required calculation unit 152. Therefore, the route RA Restricted area above GF However, even if the area is included in a communication difficult zone, notifications can be sent to predetermined recipients at the appropriate time. 【0061】 Furthermore, in this embodiment, the in-vehicle device 10A, when passing through a communication difficulty area WR, which is an area where communication conditions deteriorate, notifies a predetermined notification recipient of the status of entering the restricted area GF. The notification unit 130 also notifies the status of entering the restricted area GF, including information regarding whether the vehicle has passed through or stayed there. In other words, the driving information acquisition unit 151 acquires driving information such as the passing point and passing speed of the vehicle V within the restricted area GF on the driving route RA, and stores it in the storage unit 121A as the status of entering the restricted area GF. The required time calculation unit 152 acquires the passing time of the vehicle V within the restricted area GF on the driving route RA, and stores it in the storage unit 121A as the status of entering the restricted area GF. Then, when the vehicle V passes through the communication difficulty area WR, the notification control unit 114A acquires the status of the vehicle V entering the restricted area GF, including information on passing through or staying in the area, from the storage unit 121A, and notifies the mobile terminal 30 via the notification unit 130. Therefore, the route RA Restricted area above GF However, even if the area is included in a communication difficult zone, notifications can be sent to predetermined recipients at the appropriate time. 【0062】 Furthermore, the in-vehicle devices 10 and 10A of the present invention can be realized by recording the processing of processor units 100 and 100A onto a recording medium readable by a computer system, and then loading and executing the program recorded on this recording medium into processor units 100 and 100A. The computer system referred to here includes hardware such as an operating system and peripheral devices. 【0063】 Furthermore, "computer system" includes the homepage provisioning environment (or display environment) if the WWW (World Wide Web) system is being used. The above program may also be transmitted from the computer system in which the program is stored to another computer system via a transmission medium or by transmission waves within the transmission medium. Here, "transmission medium" for transmitting the program refers to a medium that has the function of transmitting information, such as a network (communication network) such as the Internet or a communication line (communication line) such as a telephone line. 【0064】 Furthermore, the above program may be intended to implement some of the functions described above. It may also be a so-called differential file (differential program) that can implement the aforementioned functions in combination with programs already recorded in the computer system. 【0065】 While embodiments of this invention have been described in detail above with reference to the drawings, the specific configuration is not limited to these embodiments and includes designs and the like that do not depart from the spirit of this invention. [Explanation of symbols] 【0066】 1; Vehicle communication system 1A; Vehicle communication system 10;In-vehicle equipment 10A; In-vehicle device 20; Server 30; Mobile devices 110; processor 110A; Processor 111; Navigation section 112; Area Information Extraction Unit 113; Judgment section 113A; Judgment section 114; Notification Control Unit 120; memory 120A; Memory 121;Memory part 121A;Storage section 130; Notification Department 151; Driving Information Acquisition Unit 152;Required time calculation part NF; restricted area where communication is difficult. NT; communication network GF; Restricted Area GP1: Restricted Area Entry Point GP2: Restricted Area Passage Point RA; Driving route VP1; Approach judgment point WP1; Point of entry into communication-difficult area WP2; Point of passage through communication difficulty area WR; Area with poor communication

Claims

[Claim 1] A navigation unit that guides the vehicle according to the determined route information, An area information extraction unit extracts areas where communication conditions deteriorate and predetermined restricted areas included in the determined route information, A determination unit that determines whether the restricted area is included in the area where communication conditions deteriorate, If the restricted area is included in the area where communication conditions deteriorate, the notification unit notifies a predetermined recipient in advance that the vehicle will enter the restricted area before the vehicle enters the area where communication conditions deteriorate. A driving information acquisition unit that acquires driving information for the determined driving route, A time calculation unit calculates the time required from the prior notification to passing through the area where the communication conditions deteriorate, based on the driving information of the determined driving route obtained. Equipped with, The notification unit is characterized by providing notifications that include the time between the prior notification and the next notification. [Claim 2] The in-vehicle device according to Claim 1, characterized in that the notification unit notifies the predetermined notification recipient of the status of entering the restricted area when the vehicle passes through the area where the communication conditions are deteriorating. [Claim 3] The in-vehicle device according to claim 1, characterized in that the status of entry into the restricted area includes information regarding passage or stay. [Claim 4] One or more processors, and one or more memories that are communicably connected to the one or more processors, A notification unit that provides advance notice when the vehicle enters a predetermined restricted area, Equipped with, The one or more of the above-mentioned memories are It includes a storage unit that stores information including map information about routes, information about areas where communication conditions are deteriorating, and information about predetermined restricted areas. The one or more processors described above are A navigation unit that guides the vehicle according to the determined route information, An area information extraction unit extracts the areas where communication conditions deteriorate and the restricted areas included in the determined travel route information, A determination unit that determines whether the restricted area is included in the area where communication conditions deteriorate, A notification control unit that controls the notification unit, A driving information acquisition unit that acquires driving information for the determined driving route, A time calculation unit calculates the time required from the prior notification to passing through the area where the communication conditions deteriorate, based on the driving information of the determined driving route obtained. Includes, The notification control unit controls the notification unit to notify a predetermined recipient in advance that the vehicle will enter the predetermined restricted area, before the vehicle enters the area where the communication conditions deteriorate, when the restricted area is included in the area where the communication conditions deteriorate, and to notify the notification including the time between the advance notification and the next notification.

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