JP6061807B2 - Navigation device - Google Patents

Description

  The present invention relates to a navigation device that guides a route from a current position to a destination.

  Since vehicle theft tends to increase, a method of utilizing a car navigation device has been proposed as means for suppressing vehicle theft (see, for example, Patent Documents 1 and 2).

  In the devices disclosed in Patent Literature 1 and Patent Literature 2 (hereinafter sometimes referred to as “navigation devices”), when a vehicle abnormality is detected, an image captured by a camera (hereinafter referred to as “camera image”) may be used. Are transmitted to the terminal device owned by the owner of the vehicle. The owner of the vehicle can check the state of the vehicle based on the camera image received by the terminal device.

  Further, when an abnormality of the vehicle is detected, the navigation device operates an anti-theft function and determines whether or not the vehicle has been stolen. For example, if there is an intruder in the vehicle and it is determined that the intruder is a thief, the navigation device will determine that the vehicle has been stolen, threaten by an alarm, and security operations such as reporting to the police. Execute. If it is determined that the intruder is a non-malicious person, the navigation device determines that the vehicle is not stolen and releases the security operation.

JP 2005-29138 A JP 2006-232015 A

  As described above, in the navigation devices disclosed in Patent Documents 1 and 2, when it is determined that the vehicle has been stolen, security operations such as reporting to the police are performed. It takes time for the police to arrive at the stolen vehicle after reporting to the police.

  Therefore, when a person who has stolen the vehicle (hereinafter, sometimes referred to as “theft person”) leaves the vehicle in a relatively short time, it becomes difficult to track the stolen vehicle. In order to prevent this, there is a need for a technique that can make the time spent by the theft in the vehicle as long as possible.

  An object of the present invention is to provide a navigation device that can increase the time that a user of a vehicle stays in the vehicle as long as possible when it is determined that the vehicle has been stolen.

A navigation device according to the present invention is a navigation device configured to be mountable on a vehicle and capable of outputting at least one of an image and sound from an output device, and a current position acquisition unit that acquires the current position of the device itself; A route search unit that searches for a route from the current position acquired by the current position acquisition unit to the destination input by the input unit, and a route that represents the route searched by the route search unit Equipped with a route guidance unit that provides information to the output device to guide the route, a guidance unit that provides guidance information for guiding the vehicle to the route searched by the route search unit, and the own device or the own device A controller for controlling a theft determination unit that determines whether or not a vehicle that has been stolen has been stolen, and a current position acquisition unit, an input unit, a route search unit, a route guide unit, a theft determination unit, and a guidance unit The control unit is configured to operate in a theft mode that performs an operation to prevent arrival at the destination input by the input unit when the theft determination unit determines that the device or the vehicle has been stolen. The route search unit controls the route search unit, the route guide unit, and the guidance unit, and in the theft mode, the route search unit searches for a recommended route recommended as a route from the current position to the destination input by the input unit, A virtual destination that is a virtual destination is set within a predetermined range from the position, a virtual route that is a route from the current position to the virtual destination is searched, and the route guidance unit is searched by the route search unit The route information representing the recommended route is given to the output device to guide the recommended route, and the guidance unit provides the output device with guidance information for guiding to the virtual route searched by the route search unit, and the route search is performed. , Every time the guiding information for guiding a virtual route by the output device is output to newly set the virtual destination, wherein the newly searched virtual path.
A navigation device of the present invention is a navigation device that is configured to be mountable on a vehicle and can output at least one of an image and sound from an output device, and a current position acquisition unit that acquires the current position of the device itself; An input unit that can input the ground, a route search unit that searches for a route from the current position acquired by the current position acquisition unit to the destination input by the input unit, and a route searched by the route search unit A route guidance unit that provides route information to the output device to guide the route, a guidance unit that provides guidance information for guiding the vehicle to the route searched by the route search unit, and the own device or the own device. A theft determination unit that determines whether or not a mounted vehicle has been stolen, and a system that controls a current position acquisition unit, an input unit, a route search unit, a route guide unit, a theft determination unit, and a guidance unit. The controller is configured to operate in a theft mode that performs an operation that prevents the arrival at the destination input by the input unit when the theft determination unit determines that the device or the vehicle has been stolen. In addition, the route search unit controls the route search unit, the route guide unit, and the guide unit, and in the theft mode, the route search unit searches for a recommended route recommended as a route from the current position to the destination input by the input unit. , Set a virtual waypoint that is a virtual waypoint within a predetermined range from the current position, and search for a route from the current position to the destination input by the input unit via the virtual waypoint, The route guide unit provides route information representing the recommended route searched by the route search unit to the output device to guide the recommended route, and the guide unit guides to the route route searched by the route search unit Giving guide information to the output device, the route search unit, each time it is determined to have arrived at the place through a virtual, newly set a transit point virtual, characterized in that it newly searching for a via path.

According to the navigation device of the present invention, when the theft determination unit determines that the device or the vehicle has been stolen, the route search unit, the route guidance unit, and the guidance unit are controlled by the control unit so as to operate in the theft mode. Then, an operation for preventing the arrival at the destination input by the input unit is performed. As a result, the time until the device or the vehicle theft arrives at the destination can be made as long as possible. Therefore, for example, when it is determined that the vehicle has been stolen, the time during which the vehicle user stays in the vehicle can be made as long as possible.
In the theft mode, the route search unit searches for a recommended route, and sets a virtual destination within a predetermined range from the current position to search for a virtual route. The route guidance unit provides route information representing the recommended route to the output device to guide the recommended route, and the guidance unit provides guidance information for guiding to the virtual route to the output device. Each time guidance information for guiding to a virtual route is output by the output device, a virtual destination is newly set by the route guide unit, and a new virtual route is searched. As a result, the thief can continue to be guided to the virtual destination, so that the time until the device or the vehicle theft arrives at the destination can be made as long as possible.
Further, according to the navigation device of the present invention, when the theft determination unit determines that the own device or the vehicle has been stolen, the route search unit, the route guidance unit, and the guide unit are operated by the control unit so as to operate in the theft mode. An operation that is controlled and prevents arrival at the destination input by the input unit is performed. As a result, the time until the device or the vehicle theft arrives at the destination can be made as long as possible. Therefore, for example, when it is determined that the vehicle has been stolen, the time during which the vehicle user stays in the vehicle can be made as long as possible.
In the theft mode, the route search unit searches for a recommended route, sets a virtual waypoint, and searches for a route. The route guidance unit provides route information representing the recommended route to the output device, guides the recommended route, and the guidance unit provides guidance information for guiding to the route route to the output device. Each time it is determined that the virtual route has arrived, the route search unit newly sets a virtual route and searches for a new route. As a result, the thief can continue to be guided to the virtual waypoint, so that the time until the device or the vehicle theft arrives at the destination can be made as long as possible.

It is a block diagram which shows the structure of the navigation apparatus 1 which is the 1st Embodiment of this invention. It is a figure which shows an example of a virtual destination setting range. It is a flowchart which shows the process sequence of the guidance guidance process in the 1st Embodiment of this invention. It is a figure which shows an example of a detour route. It is a flowchart which shows the process sequence of the guidance guidance process in the 2nd Embodiment of this invention. It is a flowchart which shows the process sequence of the guidance guidance process in the 3rd Embodiment of this invention. It is a flowchart which shows the process sequence of the guidance guidance process in the 4th Embodiment of this invention.

<First Embodiment>
FIG. 1 is a block diagram showing a configuration of a navigation apparatus 1 according to the first embodiment of the present invention. The navigation device 1 of the present embodiment is configured to be mountable on a vehicle and is used as a vehicle navigation device. In the following description, a vehicle equipped with the navigation device 1 is referred to as “own vehicle”.

  The navigation device 1 has a normal mode and a theft mode as guidance modes for guiding the host vehicle from the current position to the destination. The normal mode is a guidance mode when the navigation device 1 is used by an authorized user. In the normal mode, the navigation device 1 performs route guidance from the current position to the destination and guidance to the route (hereinafter sometimes referred to as “guidance guidance”). The theft mode is a guidance mode when it is determined that the navigation device 1 or the vehicle on which the navigation device 1 is mounted has been stolen. In the theft mode, when the destination is input by an unauthorized user, the navigation device 1 performs an operation that prevents arrival at the input destination. The navigation device 1 is configured to be able to switch between a normal mode and a theft mode.

  The navigation device 1 includes a navigation device body 10, a touch panel 21, a liquid crystal display device 22, a global positioning system (abbreviation: GPS) receiver 23, a microphone 24, and a camera 25. The navigation apparatus body 10 includes a control unit 11, a current position acquisition unit 12, a graphical user interface (GUI) unit 13, a communication unit 15, a theft determination unit 16, a guidance unit 17, a power control unit 18, and a route. A search unit 19 and a route guide unit 20 are provided. The touch panel 21 corresponds to an input unit. The route search unit 19 corresponds to a route search unit. The route guide unit 20 corresponds to a route guide unit.

  The control unit 11 includes, for example, a central processing unit (abbreviation: CPU) and a memory such as a writable RAM (Random Access Memory). The memory stores a control program. When the CPU executes the control program stored in the memory, each of the GUI unit 13, the communication unit 15, the theft determination unit 16, the guidance unit 17, the power supply control unit 18, the route search unit 19, and the route guide unit 20 Function is realized. The control unit 11 comprehensively controls the GUI unit 13, the communication unit 15, the theft determination unit 16, the guidance unit 17, the power supply control unit 18, the route search unit 19, and the route guide unit 20 according to the control program stored in the memory. To do.

  A map database (abbreviation: DB) unit 26 provided outside the navigation apparatus 1 is connected to the control unit 11. The map DB unit 26 is realized by a storage device such as a semiconductor memory, for example, an SD (Secure Digital) memory card. The map DB unit 26 stores map information representing a map and information not displayed on the liquid crystal display device 22.

  The map information is configured by hierarchizing a plurality of maps corresponding to a predetermined scale. The map information includes map display information. Map display information includes road information related to roads, facility information indicating the type, name, and location of facilities, various character information indicating place names, facility names, intersection names, road names, etc., and various icons indicating facilities, road numbers, etc. Including at least one of the information.

  Information not displayed on the liquid crystal display device 22 includes, for example, node information representing points on the map, link information representing roads connecting the nodes, link cost information as a load required to travel the links, and the like. including.

  The map DB unit 26 may be provided in the navigation device body 10. In this case, the map DB unit 26 is realized by, for example, a hard disk drive (abbreviation: HDD) device.

  The GPS receiver 23 receives a radio signal transmitted from a GPS satellite. The GPS receiver 23 gives the received radio signal to the current position acquisition unit 12.

  The current position acquisition unit 12 acquires the current position of the host vehicle by performing map matching using the map information stored in the map DB unit 26 based on the radio wave signal given from the GPS receiver 23. Here, “map matching” is the most probable in comparison with the current position of the detected vehicle, taking into account the road information included in the map information and the traveling locus of the vehicle including the left and right turns. This is one method of determining the position as the current position of the host vehicle. The current position acquisition unit 12 gives the control unit 11 current position information that is information indicating the acquired current position of the host vehicle.

  The GUI unit 13 is connected to the touch panel 21 and the liquid crystal display device 22. The touch panel 21 is installed on the surface of the liquid crystal display device 22 and detects a user's touch operation and a touch position. The touch panel 21 is used when the user inputs information such as numeric information, character information, and instruction information to the navigation device 1. When the touch panel 21 is operated by the user, the touch panel 21 generates an instruction signal representing an instruction corresponding to the user's operation and supplies the instruction signal to the GUI unit 13. The GUI unit 13 gives an instruction signal given from the touch panel 21 to the control unit 11.

  The control unit 11 processes the map information stored in the map DB unit 26 based on the instruction signal given from the touch panel 21 and performs information processing for displaying a desired map on the liquid crystal display device 22. Further, the control unit 11 performs information processing for displaying various function settings of the navigation device 1 on the liquid crystal display device 22 as a menu screen based on an instruction signal given from the touch panel 21.

  The control unit 11 acquires necessary information from the map DB unit 26 and the like, and processes information to be displayed on the liquid crystal display device 22 based on an instruction signal given from the touch panel 21. For example, the control unit 11 gives image information related to a map to be displayed on the liquid crystal display device 22 to the GUI unit 13.

  The GUI unit 13 converts the image information given from the control unit 11 into an image information signal that can be handled by the liquid crystal display device 22 in accordance with the control command given from the control unit 11, and corresponds to the image information represented by the image information signal. An instruction to display an image to be displayed is given to the liquid crystal display device 22. The liquid crystal display device 22 displays an image corresponding to the image information on the display screen based on an instruction given from the GUI unit 13.

  The control unit 11 is connected to a speaker 27 mounted on the vehicle outside the navigation device 1. When the voice information related to the voice is input, the control unit 11 causes the speaker 27 to output the voice. Specifically, the control unit 11 converts the audio information into an audio signal that can be handled by the speaker 27 and gives the audio signal to the speaker 27. The speaker 27 outputs the sound represented by the sound signal given from the control unit 11. The speaker 27 outputs, for example, voice guidance information included in the guidance information.

  The communication unit 15 is configured to be able to communicate with an external communication device. An antenna 14 is connected to the communication unit 15. The communication unit 15 communicates with an external communication device via the antenna 14. The external communication device is, for example, a portable communication device held by an authorized user of the navigation device 1. The mobile communication device is realized by, for example, a mobile phone or a smartphone.

  When communicating with the mobile communication device, the communication unit 15 is communicably connected to the mobile communication device via a wired line such as a USB (Universal Serial Bus) cable or a LAN (Local Area Network) cable. The communication unit 15 may be communicably connected to the mobile communication device by wireless such as Bluetooth (registered trademark) or wireless LAN which is a short-range wireless communication standard.

  The theft determination unit 16 determines whether or not the navigation device 1 or the vehicle on which the navigation device 1 is mounted has been stolen. A microphone 24 and a camera 25 are connected to the theft determination unit 16. The microphone 24 collects sound in the vehicle and gives sound information representing the collected sound to the theft determination unit 16. The camera 25 images the inside of the vehicle and gives image information representing the captured image to the theft determination unit 16.

  The theft determination unit 16 determines whether or not the navigation device 1 or the vehicle on which the navigation device 1 is mounted has been stolen based on the audio information provided from the microphone 24 and the image information provided from the camera 25. Specifically, the theft determination unit 16 transmits the given audio information and image information to the mobile communication device of the authorized user of the navigation device 1 via the control unit 11 and the communication unit 15, and Requests the user to determine if it has been stolen.

  The mobile communication device of a legitimate user outputs sound corresponding to the received sound information from the speaker and displays an image corresponding to the received image information on the display unit. An authorized user determines whether the navigation device 1 or the vehicle on which the navigation device 1 is mounted has been stolen based on the sound output from the speaker of the mobile communication device and the image displayed on the display unit. An authorized user transmits the determination result as an answer to the navigation device 1 via the portable communication device.

  The theft determination unit 16 determines whether or not the navigation device 1 or the vehicle on which the navigation device 1 is mounted has been stolen based on an answer from an authorized user. The theft determination unit 16 gives the determination result to the control unit 11.

  Based on the determination result given from the theft determination unit 16, the control unit 11 determines whether the guidance mode of the navigation device 1 is set to the normal mode or the theft mode. When it is determined that the guidance mode is the normal mode, the control unit 11 controls the route search unit 19, the route guide unit 20, and the guidance unit 17 to operate in the normal mode. When determining that the guidance mode is the theft mode, the control unit 11 controls the route search unit 19, the route guide unit 20, and the guidance unit 17 so as to operate in the theft mode.

  The guidance unit 17 transmits guidance information, which is information for guiding the vehicle to a route searched by a route search unit 19 described later, via the control unit 11 and the GUI unit 13, on the liquid crystal display device 22 and the speaker 27. Give to at least one to assist the user's driving operation. The liquid crystal display device 22 and the speaker 27 correspond to an output device. In the following description, the liquid crystal display device 22 and the speaker 27 may be collectively referred to as “output device”.

  The guide unit 17 acquires from the route search unit 19 via the control unit 11 a route related to the route searched by the route search unit 19 (hereinafter also referred to as “route related information”). Based on the acquired route-related information, the guide unit 17 obtains a guide point that is a point where the guide information should be output from the output device among points on the route searched by the route search unit 19.

  The guidance point is, for example, a point where a course is to be changed such as an intersection or a branch road while traveling on a recommended route or a virtual route, which will be described later, or a point that is easily mistaken. In addition, for example, the guidance point is a point that guides the vehicle to change the lane to a predetermined lane in consideration of the left or right turn ahead while traveling on a road having a plurality of lanes.

  The guidance information is stored in a storage unit (not shown). The guidance information includes guidance point position information, guidance point image information, and guidance point audio information. The guidance point position information is position information representing the position of the guidance point. The guidance point image information is image information representing an image to be displayed on the liquid crystal display device 22 for guidance at the guidance point. The guidance point voice information is voice information representing a voice to be output from the speaker 27 for guidance at the guidance point.

  The guidance point position information may be image information corresponding to an image representing the position of the guidance point, or may be voice information corresponding to a voice representing the position of the guidance point. The guidance point position information and guidance point image information in the case of image information are given to the liquid crystal display device 22. In the case of voice information, guidance point position information and guidance point voice information are given to the speaker 27.

  The guidance point image information is, for example, an enlarged guide map in which a direction to be followed at a point is visually added to a map obtained by enlarging, enlarging, or deforming a map including a guidance point such as an intersection by using an arrow or a color on a road. This is image information representing. The guidance point image information may be image information representing an equal-size guide map in which a direction to proceed at the guidance point is visually added to an actual image of the guidance point or an image similar thereto. In the following description, the enlarged guide map and the same size guide map may be collectively referred to as “guide map”.

  The guiding unit 17 acquires current position information representing the current position of the host vehicle acquired by the current position acquiring unit 12 from the control unit 11. When the guidance unit 17 determines that the host vehicle has reached a predetermined distance from the guidance point based on the previously obtained guidance point and the current position information, the guidance unit 17 obtains guidance information according to the guidance point. The information is acquired from a storage unit (not shown) and provided to at least one of the liquid crystal display device 22 and the speaker 27 via the control unit 11 and the GUI unit 13.

  The power supply control unit 18 is connected to a power supply outside the vehicle, for example, an alternating current (AC) power supply 28 or a vehicle accessory (ACC) power supply 29. The power supply control unit 18 supplies power input from the AC power supply 28 or the vehicle ACC power supply 29 to the entire navigation device 1. The power supply voltage of AC power supply 28 is, for example, 100V. The power supply voltage of the vehicle ACC power supply 29 is 12V, for example.

  When the guidance mode is the normal mode, the route search unit 19 searches for a desirable route for reaching a point desired by the authorized user. Specifically, the route search unit 19 in the normal mode is based on an instruction signal given from the touch panel 21 to a point such as a destination and a waypoint set by the user from the current position of the host vehicle. A route recommended as a route (hereinafter referred to as “recommended route”) is searched.

  Recommended routes include, for example, the route with the shortest route (hereinafter referred to as “shortest route”), the route with the shortest required time (hereinafter referred to as “fastest route”), and the route with the lowest cost including the cost of toll roads. (Hereinafter referred to as “cheap route”), the route with the best fuel consumption (hereinafter referred to as “low fuel consumption route”), or the route with a good balance between time and cost (hereinafter referred to as “standard route”). The recommended route may be configured to be selectable from these routes.

  When the guidance mode is the theft mode, the route search unit 19 searches for a route that prevents arrival at the destination input by an unauthorized user such as the theft. Specifically, the route search unit 19 in the theft mode is based on an instruction signal given from the touch panel 21, for example, a point such as a destination and waypoint set by the user from the current position of the host vehicle. Search for a route with a longer distance to and a route with a longer required time.

  The route search unit 19 acquires current position information representing the current position of the host vehicle acquired by the current position acquisition unit 12 from the control unit 11. The route search unit 19 searches for a route based on the point information input from the touch panel 21 and the map information acquired from the map DB unit 26 via the control unit 11. The route searched by the route search unit 19 is given to the route guide unit 20 and the guide unit 17.

  In the normal mode, when the route search unit 19 searches for a route, for example, the link cost assigned to each link representing each road is accumulated, and the route having the minimum link cost is calculated. A known Dijkstra method or the like is used.

  The route guide unit 20 gives route information representing a route given from the route search unit 19 to at least one of the liquid crystal display device 22 and the speaker 27 which are output devices via the control unit 11 and the GUI unit 13, and navigation. The route is guided to the user of the device 1. For example, the route guidance unit 20 provides image information representing a route given from the route search unit 19 as route information to the GUI unit 13 via the control unit 11 and causes the liquid crystal display device 22 to display the route information. To the user.

  In the present embodiment, in the theft mode, the route search unit 19 searches for a recommended route, sets a virtual destination that is a virtual destination within a predetermined range from the current position, and starts from the current position. A virtual route that is a route to the virtual destination is searched. In the following description, the predetermined range for setting a virtual destination may be referred to as a “virtual destination setting range”.

  FIG. 2 is a diagram illustrating an example of a virtual destination setting range. The virtual destination setting range D is selected as a range excluding a destination direction that is a direction from the current position S toward the destination G and an anti-destination direction that is opposite to the destination direction. Specifically, the line segment L2 perpendicular to the line segment L1 and the line segment L2 are predetermined in an area surrounded by a circle C having a radius of the line segment L1 connecting the current position S and the destination G. Fan-shaped areas D1 to D4 surrounded by line segments forming angles θ1 to θ4 are selected as the virtual destination setting range D. The angles θ1 to θ4 are the central angles of the sector regions D1 to D4.

  In the example shown in FIG. 2, the angles θ1 to θ4 are each 45 °, and a region obtained by adding four sector regions D1 to D4 having a central angle of 45 ° is selected as the virtual destination setting range D. The central angles θ1 to θ4 of the four sector regions D1 to D4 may be the same or different.

  As described above, since the virtual destination setting range D is selected as a range excluding the destination direction and the anti-destination direction, the central angles θ1 to θ4 of each of the sector regions D1 to D4 exceed 0 ° and 90 °. Is selected from a range of less than The central angles θ1 to θ4 of each of the sector regions D1 to D4 are preferably around 45 °, and specifically 35 ° to 55 °.

  The route guide unit 20 provides route information representing the recommended route searched by the route search unit 19 to the liquid crystal display device 22, for example, and guides the recommended route to the user. The guiding unit 17 provides guidance information for guiding the host vehicle to the virtual route searched by the route searching unit 19, for example, to the liquid crystal display device 22. Therefore, although the recommended route is displayed on the liquid crystal display device 22, the guide map displayed on the liquid crystal display device 22 at the guidance point is for guiding the vehicle along the virtual route. The route search unit 19 newly sets a virtual destination and searches for a new virtual route every time guidance information for guiding to a virtual route is output by an output device such as the liquid crystal display device 22.

  FIG. 3 is a flowchart illustrating a processing procedure of the guidance guidance processing according to the first embodiment of the present invention. Each process of the flowchart shown in FIG. 3 is executed by the control unit 11, the theft determination unit 16, the route search unit 19, the route guide unit 20, and the guidance unit 17.

  The process of the flowchart shown in FIG. 3 is started when a predetermined time elapses after the engine key is turned off, and the process proceeds to step a1. The predetermined time is, for example, 5 minutes.

  In step a1, the theft determination unit 16 determines whether or not the navigation device 1 or the vehicle on which the navigation device 1 is mounted has been stolen. If it is determined in step a1 that it has been stolen, the process proceeds to step a2, and if it is determined that it has not been stolen, the process proceeds to step a3.

  In step a <b> 2, the control unit 11 determines whether or not a destination is input to the GUI unit 13 using the touch panel 21. If it is determined in step a2 that the destination has been input, the process proceeds to step a4. If it is determined that the destination has not been input, all processing procedures are terminated.

  In step a3, the control unit 11 performs processing in the normal mode. Specifically, the control unit 11 controls the route search unit 19, the route guide unit 20, and the guidance unit 17 so as to operate in the normal mode. When the processing in the normal mode ends, all processing procedures are ended.

  In step a4, the control unit 11 changes the guidance mode to the theft mode. Specifically, the control unit 11 controls the route search unit 19, the route guide unit 20, and the guidance unit 17 so as to operate in the theft mode. When the mode is changed to the theft mode, the process proceeds to step a5.

  In step a5, the route search unit 19 sets a point in a predetermined area as a destination. The predetermined area is the aforementioned virtual destination setting range. When the destination is set, the route search unit 19 searches for a recommended route and a virtual route. The route guide unit 20 outputs route information representing the recommended route searched by the route search unit 19 and guides the recommended route to the user. The guiding unit 17 outputs guidance information for guiding to the virtual route searched by the route searching unit 19. For example, the guiding unit 17 outputs guidance information representing a guide map for guiding to a virtual route to the liquid crystal display device 22 via the control unit 11 and the GUI unit 13, and displays the guide map on the liquid crystal display device 22. Let When the process of step a5 ends, the process proceeds to step a6.

  In step a <b> 6, the control unit 11 determines whether a guide map is displayed on the liquid crystal display device 22 by the guide unit 17. If it is determined in step a6 that the guide map is displayed, the process returns to step a5. If it is determined that the guide map is not displayed, the process proceeds to step a7.

  In step a7, the control unit 11 determines whether or not the power is turned off. If it is determined in step a7 that the power has been turned off, the process proceeds to step a8, and if it is determined that the power has not been turned off, the process returns to step a6.

  In step a8, the control unit 11 cancels the theft mode. In other words, the control unit 11 changes the guidance mode from the theft mode to the normal mode. When the processing of step a8 is completed, all processing procedures are terminated.

  As described above, according to the navigation device 1 of the present embodiment, if the theft determination unit 16 determines that the device 1 or the vehicle on which the device 1 is mounted has been stolen, the route search unit 19 and the route guide unit 20 and the guide unit 17 are controlled by the control unit 11 so as to operate in the theft mode, and an operation for preventing arrival at the destination input by the touch panel 21 is performed. Thereby, the time until the user of the own apparatus 1 arrives at the destination can be made as long as possible. Therefore, for example, when it is determined that the vehicle has been stolen, it is possible to lengthen as much time as possible for the thief who is the user of the device 1 to stay in the vehicle.

  In the navigation device 1 of the present embodiment, although not shown in FIG. 3, the theft determination unit 16 determines that the device 1 or the vehicle on which the device 1 is mounted has been stolen in step a1. Then, the communication unit 15 is controlled by the control unit 11 so as to transmit theft information indicating that the device 1 or the vehicle on which the device 1 is mounted is stolen to an external communication device. Transmission of theft information to an external communication device by the communication unit 15 is periodically performed after it is determined that the theft has been stolen. The transmission interval of theft information is, for example, 1 minute or 30 seconds.

  In the present embodiment, as described above, the time until the device 1 or the vehicle theft arrives at the destination can be made as long as possible. Therefore, for example, when the communication unit 15 transmits theft information to an external communication device installed in the police or the like, until the police or the like arrives at the stolen vehicle and the time for determining the position of the stolen vehicle. Time can be secured. Thereby, it is possible to prevent the thief from escaping before the police arrive at the stolen vehicle.

  Further, in the present embodiment, in the theft mode, the route search unit 19 searches for a recommended route, sets a virtual destination within the virtual destination setting range, and searches for a virtual route. Route information representing a recommended route is given to the output device by the route guide unit 20 to guide the recommended route, and guidance information for guiding to the virtual route is given to the output device by the guide unit 17. Each time guidance information for guiding to a virtual route is output by the output device, a new virtual destination is set by the route search unit 19 and a new virtual route is searched. As a result, the thief can continue to be guided to the virtual destination, so that the time until the device 1 or the thief of the vehicle arrives at the destination can be made as long as possible.

<Second Embodiment>
The navigation device according to the second embodiment of the present invention has the same configuration as the navigation device 1 according to the first embodiment shown in FIG. 1 except that the operation in the theft mode is different. Are denoted by the same reference numerals, and description thereof is omitted.

  In the present embodiment, in the theft mode, the route search unit 19 separates from the recommended route recommended as the route from the current position to the destination input by the touch panel 21, and a detourable detour route (hereinafter “ It is determined whether or not there is a “detour route”. When the route search unit 19 determines that there is a detour route, it artificially sets obstacle traffic information indicating that there is a failure in the recommended route, and searches for the detour route as a recommended route from the current position to the destination. . The route guide unit 20 guides the detour route searched by the route search unit 19, and the guide unit 17 guides the detour route searched by the route search unit 19.

  FIG. 4 is a diagram illustrating an example of a detour route. The route search unit 19 determines whether there is a detour route as a route from the current position S to the destination G, in addition to the recommended route R1. For example, in the case illustrated in FIG. 4, the route search unit 19 determines that the detour route R2 exists, and artificially sets the obstacle traffic information indicating that the obstacles B1 and B2 exist in the recommended route R1. The obstacle traffic information represents, for example, that obstacles B1 and B2 exist on two roads R11 and R12 constituting the recommended route R1, respectively. The route search unit 19 searches the detour route R2 as a recommended route.

  FIG. 5 is a flowchart showing a processing procedure of the guidance guidance processing in the second embodiment of the present invention. Since the flowchart shown in FIG. 5 is similar to the flowchart shown in FIG. 3, the same steps are denoted by the same step numbers and common description is omitted. Each process of the flowchart shown in FIG. 5 is executed by the control unit 11, the theft determination unit 16, the route search unit 19, the route guide unit 20, and the guidance unit 17. The process of the flowchart shown in FIG. 5 is started when a predetermined time elapses after the engine key is turned off, and the process proceeds to step a1. The predetermined time is, for example, 5 minutes.

  Similar to the flowchart shown in FIG. 3, the processing of step a1 to step a4 is performed. When the mode is changed to the theft mode in step a4, the process proceeds to step b1.

  In step b1, the control unit 11 sets a point input by the touch panel 21 as a destination. When the destination is set, the process proceeds to step b2.

  In step b2, the route search unit 19 determines whether there is a detour route. If it is determined in step b2 that there is a detour route, the process proceeds to step b3. If it is determined that there is no detour route, the process proceeds to step a7.

  In step b3, the route search unit 19 sets faulty traffic information indicating that a fault exists on the recommended route. When the obstacle traffic information is set, the route search unit 19 searches for a detour route. When the process of step a5 ends, the process proceeds to step b4.

  In step b <b> 4, the route guide unit 20 gives the route information indicating the detour route to the liquid crystal display device 22 through the control unit 11 and the GUI unit 13, for example, and causes the liquid crystal display device 22 to display the detour route. As a result, the route guide unit 20 guides the user on the detour route searched by the route search unit 19. In addition, the guidance unit 17 provides guidance information for guiding to the detour route searched by the route search unit 19 to at least one of the liquid crystal display device 22 and the speaker 27. For example, the guide unit 17 gives guidance information representing a guide map for guiding to the virtual route to the liquid crystal display device 22 via the control unit 11 and the GUI unit 13, and causes the liquid crystal display device 22 to display the guide map. . When the process of step a6 ends, the process proceeds to step a7.

  In step a7, if the control unit 11 determines that the power is turned off, the process proceeds to step a8. If it is determined that the power is not turned off, the process returns to step b2.

  In step a8, the control unit 11 cancels the theft mode. When the processing of step a8 is completed, all processing procedures are terminated.

  As described above, according to the present embodiment, in the theft mode, the route search unit 19 determines whether there is a bypass route apart from the recommended route. If it is determined that a detour route exists, the route search unit 19 sets obstacle traffic information indicating that a failure exists in the recommended route, and searches for the detour route as a recommended route. The route information representing the searched detour route is given to the output device by the route guide unit 20 to guide the detour route. Further, guidance information for guiding to the searched detour route is given to the output device by the guidance unit 17. Accordingly, since the route through which the theft arrives at the destination can be lengthened, the time until the device 1 or the vehicle theft arrives at the destination can be made as long as possible. .

  Further, in the present embodiment, although not shown in FIG. 5 described above, if the theft determination unit 16 determines in step a1 that the device 1 or the vehicle on which the device 1 is mounted has been stolen, Similar to the first embodiment, the communication unit 15 transmits theft information to an external communication device.

  Also in the present embodiment, as in the first embodiment, the time until the device 1 or the vehicle theft arrives at the destination can be made as long as possible. Therefore, for example, when the communication unit 15 transmits theft information to an external communication device installed in the police or the like, until the police or the like arrives at the stolen vehicle and the time for determining the position of the stolen vehicle. Time can be secured. Thereby, it is possible to prevent the thief from escaping before the police arrive at the stolen vehicle.

<Third Embodiment>
The navigation device of the third embodiment of the present invention has the same configuration as the navigation device 1 of the first embodiment shown in FIG. 1 except that the operation in the theft mode is different. Are denoted by the same reference numerals, and description thereof is omitted.

  In the present embodiment, in the theft mode, the route search unit 19 searches for a recommended route, and within a predetermined range from the current position, a virtual waypoint (hereinafter simply “routepoint”). And a via route that is a route from the current position to the destination input by the touch panel 21 via the virtual waypoint is searched. The predetermined range for setting the virtual waypoint is selected in the same manner as the virtual destination setting range in the first embodiment.

  The route guide unit 20 provides route information representing the recommended route searched by the route search unit 19 to the output device to guide the recommended route. The guidance unit 17 provides guidance information for guidance to the route searched by the route search unit 19 to the output device. Every time it is determined that the route search unit 19 has arrived at the virtual waypoint, the route search unit 19 newly sets a virtual waypoint and searches for a new route.

  FIG. 6 is a flowchart showing the procedure of the guidance guidance process in the third embodiment of the present invention. Since the flowchart shown in FIG. 6 is similar to the flowchart shown in FIG. 3, the same steps are denoted by the same step numbers, and the common description is omitted. Each process of the flowchart illustrated in FIG. 6 is executed by the control unit 11, the theft determination unit 16, the route search unit 19, the route guide unit 20, and the guidance unit 17. The process of the flowchart shown in FIG. 6 is started when a predetermined time elapses after the engine key is turned off, and the process proceeds to step a1. The predetermined time is, for example, 5 minutes.

  Similar to the flowchart shown in FIG. 3, the processing of step a1 to step a4 is performed. When the mode is changed to the theft mode in step a4, the process proceeds to step c1.

  In step c1, the route search unit 19 determines whether or not a waypoint can be set. If it is determined in step c1 that the transit point can be set, the process proceeds to step c2, and if it is determined that the transit point cannot be set, the process proceeds to step a7.

  In step c2, the route search unit 19 sets a waypoint. When the waypoint is set, the process proceeds to step c3.

  In step c3, the control unit 11 determines whether or not the route has arrived. If it is determined in step c3 that the vehicle has arrived at the waypoint, the process proceeds to step a7. If it is determined that the route has not been reached, the process in step c3 is repeated.

  In step a7, when the control unit 11 determines that the power is turned off, the process proceeds to step a8, and when it is determined that the power is not turned off, the process returns to step c1.

  In step a8, the control unit 11 cancels the theft mode. When the processing of step a8 is completed, all processing procedures are terminated.

  As described above, according to the present embodiment, in the theft mode, the route search unit 19 searches for a recommended route, sets a virtual waypoint, and searches for a route. The route guidance unit 20 provides route information representing the recommended route to the output device to guide the recommended route, and the guidance unit 17 provides guidance information for guiding to the route route to the output device. Each time it is determined that the route has arrived at the virtual waypoint, the route search unit 19 newly sets a virtual waypoint and searches for a new route. As a result, the thief can continue to be guided to the virtual waypoint, so that the time until the device 1 or the vehicle theft arrives at the destination can be made as long as possible.

  Further, in the present embodiment, although not shown in FIG. 6 described above, when the theft determination unit 16 determines in step a1 that the device 1 or the vehicle on which the device 1 is mounted has been stolen, Similar to the first embodiment, the communication unit 15 transmits theft information to an external communication device.

  Also in the present embodiment, as in the first embodiment, the time until the device 1 or the vehicle theft arrives at the destination can be made as long as possible. Therefore, for example, when the communication unit 15 transmits theft information to an external communication device installed in the police or the like, until the police or the like arrives at the stolen vehicle and the time for determining the position of the stolen vehicle. Time can be secured. Thereby, it is possible to prevent the thief from escaping before the police arrive at the stolen vehicle.

<Fourth embodiment>
The navigation device of the fourth embodiment of the present invention has the same configuration as the navigation device 1 of the first embodiment shown in FIG. 1 except that the operation in the theft mode is different. Are denoted by the same reference numerals, and description thereof is omitted.

  In the present embodiment, in the theft mode, the route search unit 19 searches for a recommended route from the current position to the destination as in the normal mode, and the route guide unit 20 is searched by the route search unit 19. The route information indicating the recommended route is given to the output device to guide the recommended route. Unlike the normal mode, the guiding unit 17 guides in a direction different from a normal direction along the recommended route (hereinafter sometimes referred to as “guide direction”) as guidance information for guiding to the recommended route. Guidance information is provided to the output device to guide a direction different from the normal guidance direction. Specifically, the guide unit 17 gives guidance information representing a guide map for guiding in a direction different from the normal guide direction to the liquid crystal display device 22 via the control unit 11 and the GUI unit 13, so that the guide map is displayed. Is displayed on the liquid crystal display device 22.

  FIG. 7 is a flowchart showing a processing procedure of guidance guidance processing according to the fourth embodiment of the present invention. Since the flowchart shown in FIG. 7 is similar to the flowchart shown in FIG. 3, the same steps are denoted by the same step numbers, and the common description is omitted. Each process of the flowchart shown in FIG. 7 is executed by the control unit 11, the theft determination unit 16, the route search unit 19, the route guide unit 20, and the guidance unit 17. The processing of the flowchart shown in FIG. 7 is started when a predetermined time elapses after the engine key is turned off, and the process proceeds to step a1. The predetermined time is, for example, 5 minutes. It is a flowchart.

  Similar to the flowchart shown in FIG. 3, the processing of step a1 to step a4 is performed. When the mode is changed to the theft mode in step a4, the process proceeds to step d1.

  In step d1, the guiding unit 17 determines whether there is an intersection capable of guiding a direction different from the normal guidance direction. If it is determined in step d1 that there is an intersection capable of guiding a direction different from the normal guidance direction, the process proceeds to step d2, and it is determined that there is no intersection capable of guiding a direction different from the normal guidance direction. If yes, the process proceeds to step a7.

  In step d2, the guiding unit 17 gives guidance information for guiding in a direction different from the normal guidance direction along the recommended route to at least one of the output device, specifically the liquid crystal display device 22 and the speaker 27. Thus, a direction different from the normal guidance direction is guided. The route guide unit 20 provides route information representing a recommended route to an output device, specifically, at least one of the liquid crystal display device 22 and the speaker 27 to guide the recommended route. When the process of step d2 ends, the process proceeds to step d3.

  In step d3, the control unit 11 determines whether or not the vehicle has passed the intersection. If it is determined in step d3 that the vehicle has passed the intersection, the process proceeds to step a7. If it is determined that the vehicle has not passed the intersection, the process in step d3 is repeated.

  In step a7, if the control unit 11 determines that the power is turned off, the process proceeds to step a8. If it is determined that the power is not turned off, the process returns to step d1.

  In step a8, the control unit 11 cancels the theft mode. When the processing of step a8 is completed, all processing procedures are terminated.

  As described above, according to the present embodiment, in the theft mode, as guidance information for guiding to the recommended route, the guiding unit 17 guides in a direction different from the normal guidance direction along the recommended route. Information for guidance is provided to an output device such as the liquid crystal display device 22 to guide a direction different from the normal guide direction. As a result, the thief can be guided away from the destination, so that the time until the device 1 or the vehicle theft arrives at the destination can be made as long as possible.

  In addition, the direction in which the guidance information output by the output device guides is different from the direction along the recommended route guided by the route guide unit 20, so that the thief can be confused. Therefore, the time until the device 1 or the vehicle theft arrives at the destination can be lengthened more reliably.

  Further, in the present embodiment, although not shown in FIG. 7 described above, when the theft determination unit 16 determines in step a1 that the device 1 or the vehicle on which the device 1 is mounted has been stolen, Similar to the first embodiment, the communication unit 15 transmits theft information to an external communication device.

  Also in the present embodiment, as in the first embodiment, the time until the device 1 or the vehicle theft arrives at the destination can be made as long as possible. Therefore, for example, when the communication unit 15 transmits theft information to an external communication device installed in the police or the like, until the police or the like arrives at the stolen vehicle and the time for determining the position of the stolen vehicle. Time can be secured. Thereby, it is possible to prevent the thief from escaping before the police arrive at the stolen vehicle.

  In each of the embodiments described above, the processes of the flowcharts shown in FIGS. 3 and 5 to 7 are configured to start when a predetermined time elapses after the engine key is turned off. However, it is not limited to such a configuration. 3 and 5 to 7 may be started when a predetermined time has elapsed after the door is locked, or after the engine key is turned off and the door is locked. It may be started when a predetermined time has elapsed.

  The navigation device 1 of each of the above-described embodiments is a system in which not only a vehicle navigation device mounted on a vehicle, that is, a car navigation device, but also a communication terminal device and a server device that can be mounted on the vehicle as appropriate. The present invention can also be applied to a constructed navigation device. The communication terminal device is, for example, a PND (Portable Navigation Device) and a portable communication device having a function of communicating with a server device. The mobile communication device is, for example, a mobile phone, a smartphone, and a tablet terminal device. As described above, when a system is constructed with a navigation device, a communication terminal device, and a server device, each function and each component of the navigation device 1 are distributed and arranged in each device that constructs the system. .

  The present invention can be freely combined with each embodiment within the scope of the invention. In addition, any component in each embodiment can be changed or omitted as appropriate.

  DESCRIPTION OF SYMBOLS 1 Navigation apparatus, 10 Navigation apparatus main body, 11 Control part, 12 Current position acquisition part, 13 GUI part, 14 Antenna, 15 Communication part, 16 Theft determination part, 17 Guidance part, 18 Power supply control part, 19 Route search part, 20 Route guidance unit, 21 touch panel, 22 liquid crystal display device, 23 GPS receiver, 24 microphone, 25 camera, 26 map DB unit, 27 speaker, 28 AC power supply, 29 vehicle ACC power supply.

Claims (3)

A navigation device configured to be mounted on a vehicle and capable of outputting at least one of an image and sound from an output device,
A current position acquisition unit for acquiring the current position of the own device;
An input unit capable of inputting a destination, and
A route search unit for searching for a route from the current position acquired by the current position acquisition unit to a destination input by the input unit;
A route guidance unit that provides route information representing the route searched by the route search unit to the output device to guide the route;
A guidance unit that provides guidance information for guiding the vehicle to the route searched by the route search unit to the output device;
A theft determination unit that determines whether the device or a vehicle on which the device is mounted has been stolen;
A controller for controlling the current position acquisition unit, the input unit, the route search unit, the route guide unit, the theft determination unit, and the guidance unit;
The controller is
When the theft determination unit determines that the device or the vehicle has been stolen, the route search unit is configured to operate in a theft mode that performs an operation to prevent arrival at the destination input by the input unit. , Controlling the route guide unit and the guide unit ,
In the theft mode,
The route search unit searches for a recommended route recommended as a route from the current position to the destination input by the input unit, and is a virtual destination within a predetermined range from the current position. Set a destination, search for a virtual route that is a route from the current position to the virtual destination,
The route guidance unit provides the output device with route information representing the recommended route searched by the route search unit, and guides the recommended route.
The guidance unit provides the output device with guidance information for guiding the virtual route searched by the route search unit,
The route search unit newly sets the virtual destination and searches for the virtual route each time guidance information for guiding to the virtual route is output by the output device. Navigation device. A navigation device configured to be mounted on a vehicle and capable of outputting at least one of an image and sound from an output device,
A current position acquisition unit for acquiring the current position of the own device;
An input unit capable of inputting a destination, and
A route search unit for searching for a route from the current position acquired by the current position acquisition unit to a destination input by the input unit;
A route guidance unit that provides route information representing the route searched by the route search unit to the output device to guide the route;
A guidance unit that provides guidance information for guiding the vehicle to the route searched by the route search unit to the output device;
A theft determination unit that determines whether the device or a vehicle on which the device is mounted has been stolen;
A controller for controlling the current position acquisition unit, the input unit, the route search unit, the route guide unit, the theft determination unit, and the guidance unit;
The controller is
When the theft determination unit determines that the device or the vehicle has been stolen, the route search unit is configured to operate in a theft mode that performs an operation to prevent arrival at the destination input by the input unit. , Controlling the route guide unit and the guide unit ,
In the theft mode,
The route search unit searches for a recommended route recommended as a route from the current position to the destination input by the input unit, and is a virtual route within a predetermined range from the current position. Set a waypoint, search for a route from the current position via the virtual waypoint to the destination input by the input unit,
The route guidance unit provides the output device with route information representing the recommended route searched by the route search unit, and guides the recommended route.
The guidance unit provides the output device with guidance information for guiding the route route searched by the route search unit,
The navigation device characterized in that the route searching unit newly sets the virtual waypoint and searches for the route again each time it is determined that the route has arrived at the virtual waypoint . A communication unit capable of communicating with a predetermined external communication device;
The controller is
When the theft determination unit determines that the device or the vehicle has been stolen, the communication unit is configured to transmit theft information indicating that the device or the vehicle has been stolen to the external communication device. the navigation device according to claim 1 or 2, characterized in that control.

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