JP2009250854A - Navigation device and navigation method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To solve the problem that although an on-vehicle navigation device is hitherto equipped with the function of calculating a route using a smart IC (Interchange) in calculating a recommended route in cases where conditions allowing a vehicle to use a smart IC are satisfied, information on a correct route cannot be provided in the navigation device until map data by a manufacturer. etc. are supplied in cases where a smart IC is newly-established other than the smart ICs for which storage is performed in advance in a storage device, etc., and to provide a technique for performing the guidance of a route using a newly-established smart IC without depending on the supply of map data by a manufacturer, etc. as to an on-vehicle navigation device. <P>SOLUTION: This on-vehicle navigation device is equipped with a means for registering a smart IC yet to be registered based on the result of communication through ETC. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a navigation device technology.

  Conventionally, there is an in-vehicle navigation device described in Patent Document 1 for the purpose of guiding a route using a smart IC (Interchange) in a navigation device.

  The smart IC is an interchange exclusively for ETC (Electronic Toll Collection System: registered trademark) installed on the main line such as highways or in the service area (SA), parking area (PA), and bus stop (BS). . In general, it can be introduced at a lower cost than conventional interchanges.

  Patent Document 1 describes an in-vehicle navigation device having a function of calculating a route using a smart IC when a recommended route is calculated when a vehicle satisfies a condition for using the smart IC.

JP 2007-263628 A

  In the vehicle-mounted navigation device as described above, a smart IC stored in advance in a storage device or a storage medium can be used for route guidance.

  However, in order to use information about the newly established smart IC other than the smart IC stored in advance, it is necessary to wait for the manufacturer to provide map data.

  An object of the present invention is to provide a technology for realizing route guidance using a newly installed smart IC without waiting for a manufacturer to provide map data in an in-vehicle navigation device.

  In order to solve the above problems, an in-vehicle navigation device according to the present invention includes a storage unit, a receipt information receiving unit that receives receipt information from an automatic fee collection device, and information included in the receipt information received by the receipt information receiving unit. Smart IC information creation means for creating information including information on the location where the smart IC is installed, and smart IC addition means for storing the smart IC information created by the smart IC information creation means in the storage means, It is characterized by providing.

  An embodiment of the present invention will be described below with reference to the drawings.

  FIG. 1 is a schematic configuration diagram of an in-vehicle navigation system 20 to which the present invention is applied. As shown in the figure, the in-vehicle navigation system 20 includes an in-vehicle navigation device 100 and an ETC in-vehicle device 11.

  The in-vehicle navigation device 100 includes an arithmetic processing unit 1, a display unit 2, a storage device 3, a voice input / output device 4, an input device 5, a ROM device 6, a vehicle speed sensor 7, a gyro sensor 8, A GPS (Global Positioning System) receiver 9 and an FM multiplex broadcast receiver 10 are provided, and can be connected to the ETC in-vehicle device 11.

  The arithmetic processing unit 1 is a central unit that performs various processes. For example, the present location is detected based on information output from various sensors 7 and 8, the GPS receiver 9, the FM multiplex broadcast receiver 10, and the like. Further, map data necessary for display is read from the storage device 3 or the ROM device 6 based on the obtained current location information.

  In addition, the arithmetic processing unit 1 develops the read map data in graphics, and overlays a mark indicating the current location on the display unit 2 to display it. Further, using the map data or the like stored in the storage device 3 or the ROM device 6, an optimum route (recommended route) connecting the starting point (current location) and the destination instructed by the user is searched. Further, the user is guided using the voice input / output device 4 and the display unit 2.

  The display unit 2 is a unit that displays the graphics information generated by the arithmetic processing unit 1. The display unit 2 is configured by a liquid crystal display, an organic EL display, or the like.

  The storage device 3 is configured with a readable / writable storage medium such as an HDD or a nonvolatile memory card. The storage device 3 can execute the read command and the write command in parallel.

  This storage medium includes a link table 200 that is map data (including link data of links constituting roads on a map) necessary for a normal route search device, an existing ETC gate table 300, and an ETC passage information table. 400, a smart IC additional information table 500, and a travel history table 600 are stored.

  FIG. 2 is a diagram showing the configuration of the link table 200. The link table 200 includes, for each mesh identification code (mesh ID) 201, which is a partitioned area on the map, link data 202 of each link constituting a road included in the mesh area.

  For each link ID 211 that is a link identifier, the link data 202 includes coordinate information 222 of two nodes (start node and end node) constituting the link, a road type 223 indicating the type of road including the link, and a link length. A link length 224 indicating the link, a pre-stored link travel time 225, a passability 226 indicating whether or not the link can be passed, and a common name indicating the common name of the road including the link (for example, “Kanpachi-dori”) 227, road width 228 of the road including the link, and the like.

  Here, by distinguishing the start node and the end node for the two nodes constituting the link, the upward direction and the downward direction of the same road are managed as different links.

  FIG. 3 is a diagram showing the configuration of an existing ETC gate table 300. The existing ETC gate table 300 is a table in which detailed information is stored in advance for ETC gates and smart ICs whose locations are known in advance.

  The existing ETC gate table 300 includes information of a gate ID 301, coordinates 302, a road name 303, a direction 304, and a gate name 305 for each record.

  The gate ID 301 is an identifier for identifying the ETC gate. For example, “001”, “002”,..., “N” (n is a positive integer).

  The coordinates 302 are coordinate information indicating the point where the ETC gate is installed. For example, latitude and longitude information such as “North latitude XXX degrees XX minutes XXX seconds east longitude XXX degrees XX minutes XX seconds”.

  A road name 303 is a name of a toll road provided with an ETC gate. For example, the name is “Tomei Expressway”.

  A direction 304 is a traveling direction of a toll road provided with an ETC gate. For example, place names such as “Tokyo” and “Niigata”.

  The gate name 305 is an identifier named for the ETC gate. For example, it is the name of a municipality to which a point using ETC belongs.

  FIG. 4 is a diagram showing the configuration of the ETC passage information table 400. The ETC passage information table 400 is a table that stores information for managing recording using the ETC. The ETC passage information table 400 includes information of a serial number 401, an ETC card number 402, an entrance toll gate name 403, an exit toll gate name 404, and a payment fee 405 for each record.

  The serial number 401 is a number for identifying history information that the vehicle uses ETC. For example, “001”, “002”,..., “N” (n is a positive integer).

  The ETC card number 402 is an identification number assigned in advance to the ETC card used by the vehicle. For example, a number such as “012345678903123456”.

  The entrance toll gate name 403 is the name of the gate at the entrance where the vehicle entered the toll road using the ETC. For example, a unique name such as “A”.

  The exit toll gate name 404 is the name of the exit gate where the vehicle exits from the toll road using the ETC. For example, the name is “X” or the like.

  The payment fee 405 is a fee paid when the vehicle uses the ETC. For example, the charge is in a currency such as “550 (yen)”.

  FIG. 5 is a diagram showing the configuration of the smart IC additional information table 500. The smart IC additional information table 500 is a table that stores information about smart ICs that are not included in the existing ETC gate table 300.

  The smart IC additional information table 500 includes information of a gate ID 501, coordinates 502, a road name 503, a direction 504, an IC temporary name 505, an entrance 506, and an exit 507 for each record.

  The gate ID 501 is an identifier that uniquely identifies the added smart IC. For example, “001”, “002”,..., “N” (n is a positive integer).

  Coordinates 502 are coordinate information indicating the point where the smart IC is installed. For example, latitude and longitude information such as “North latitude XXX degrees XX minutes XXX seconds east longitude XXX degrees XX minutes XX seconds”.

  A road name 503 is a name of a toll road provided with a smart IC. For example, the name is “Tomei Expressway”.

  A direction 504 is a traveling direction of a toll road provided with a smart IC. For example, place names such as “Tokyo” and “Niigata”.

  The IC temporary name 505 is a temporary name for the smart IC to be added. For example, it is the name of a municipality to which a point using ETC belongs.

  The entrance 506 is information as to whether or not the added smart IC is responsible for the entrance function to the toll road. For example, it is “Yes” if it has an entrance function, and “No” if it does not have an entrance function.

  The exit 507 is information indicating whether or not the added smart IC is responsible for the exit function from the toll road. For example, it is “Yes” if it has an exit function, and “No” if it does not have an exit function.

  FIG. 6 is a diagram showing the configuration of the travel history table 600. The travel history table 600 includes information of a travel time 601, a travel link ID 602, and a map matching reliability 603 for each record.

  The travel time 601 is the time when the travel of the link is completed. The travel link ID 602 is the link ID of the road that has traveled. That is, the traveling time 601 is the time when traveling on the link indicated by the traveling link ID 602 is completed.

  Further, the map matching reliability 603 is a value indicating the probability of actually traveling the link identified by the travel link ID 602.

  Note that the upward direction and the downward direction of the same road can be distinguished by the link ID stored in the traveling link ID 602.

  Returning to FIG. The voice input / output device 4 includes a microphone 41 as a voice input device and a speaker 42 as a voice output device. The microphone 41 acquires sound outside the in-vehicle navigation device 100 such as a voice uttered by a user or another passenger.

  The speaker 42 outputs a message to the user generated by the arithmetic processing unit 1 as an audio signal. The microphone 41 and the speaker 42 are separately arranged at a predetermined part of the vehicle. However, it may be housed in an integral housing. The vehicle-mounted navigation device 100 can include a plurality of microphones 41 and speakers 42.

  The input device 5 is a device that receives an instruction from the user through an operation by the user. The input device 5 includes a touch panel 51, a dial switch 52, and other hardware switches (not shown) such as scroll keys and scale change keys.

  The touch panel 51 is mounted on the display surface side of the display unit 2 and can see through the display screen. The touch panel 51 specifies a touch position corresponding to the XY coordinates of the image displayed on the display unit 2, converts the touch position into coordinates, and outputs the coordinates. The touch panel 51 includes a pressure-sensitive or electrostatic input detection element.

  The dial switch 52 is configured to be rotatable clockwise and counterclockwise, generates a pulse signal for every rotation of a predetermined angle, and outputs the pulse signal to the arithmetic processing unit 1. The arithmetic processing unit 1 obtains the rotation angle from the number of pulse signals.

  The ROM device 6 includes at least a readable storage medium such as a ROM (Read Only Memory) such as a CD-ROM or a DVD-ROM, or an IC (Integrated Circuit) card. In this storage medium, for example, moving image data, audio data, and the like are stored.

  The vehicle speed sensor 7, the gyro sensor 8, and the GPS receiver 9 are used for detecting the current location (own vehicle position) by the in-vehicle navigation device 100. The vehicle speed sensor 7 is a sensor that outputs a value used to calculate the vehicle speed. The gyro sensor 8 is composed of an optical fiber gyro, a vibration gyro, or the like, and detects an angular velocity due to the rotation of the moving body.

  The GPS receiver 9 receives a signal from a GPS satellite and measures the distance between the mobile body and the GPS satellite and the rate of change of the distance with respect to three or more satellites to thereby determine the current position, travel speed, and travel of the mobile body. It measures the direction.

  The FM multiplex broadcast receiver 10 receives an FM multiplex broadcast signal transmitted from an FM multiplex broadcast station. FM multiplex broadcasting includes VICS (Vehicle Information Communication System: registered trademark) information, current traffic information, regulatory information, SA / PA (service area / parking area) information, parking information, weather information, and FM multiplex general information. As text information provided by radio stations.

  The ETC in-vehicle device 11 is a device that communicates toll collection information with an ETC gate roadside device such as a smart IC. The ETC in-vehicle device 11 includes a device that reads the inserted ETC card, and uses the information of the read ETC card to perform wireless communication with a roadside device of an ETC gate including a smart IC and the like, so that the usage fee for toll roads, etc. Pay (ETC usage fee).

  FIG. 7 is a functional block diagram of the arithmetic processing unit 1.

  As shown in the figure, the arithmetic processing unit 1 includes a main control unit 101, an ETC information receiving unit 102, a smart IC adding unit 103, a link adding unit 104, a timing unit 105, a display unit 106, and a route search unit. 107 and a route guide unit 108.

  The main control unit 101 is a central functional unit that performs various processes, and controls other processing units according to the processing content. Further, as needed, the travel date and time, the link ID of the traveled link, and the reliability obtained as a result of the map matching are associated with each other and stored in the travel history table 600 for each link. Further, the current time is output in response to a request from each processing unit.

  The ETC information receiving unit 102 receives ETC gate passage information received from the ETC in-vehicle device 11. For example, payment information when payment is made by ETC is received.

  The smart IC adding unit 103 receives via the ETC information receiving unit 102 when the vehicle passes through the smart IC and enters a toll road or when the vehicle exits the toll road through the smart IC. Information related to the smart IC is added based on the passing information of the ETC gate.

  Specifically, the smart IC addition unit 103 creates provisional information such as the smart IC position, provisional name, and entrance / exit information based on the ETC gate passage information, and stores the provisional information in the smart IC addition information table 400. Remember me.

  When the smart IC is added by the smart IC adding unit 103, the link adding unit 104 creates a link to which the smart IC is connected and stores the link in the storage device 3.

  Specifically, the link adding unit 104, when the vehicle passes through an unregistered smart IC and passes in the direction of entering a toll road or the like, the registered link that was running immediately before To the link table 200 as a link from the travel route to the point where the smart IC exists. The link adding unit 104 adds a branch line from a point where the smart IC exists to an existing link such as a toll road as a link to the link table 200.

  When the vehicle passes through the smart IC in the direction of leaving the toll road or the like, the link adding unit 104 uses the travel route from the point where the smart IC is present to the point where it joins the nearest existing link as a link table. Add to 200. In addition, the link addition unit 104 adds a travel route from the registered link that was traveling immediately before to the point where the smart IC is present to the link table 200 as a link.

  When receiving a timing start instruction, the timing unit 105 starts timing. When receiving a timing end instruction, the timing unit 105 ends timing and outputs an elapsed time until the timing ends.

  The display unit 106 receives screen information to be displayed, converts it into a signal for drawing on the display unit 2 and the like, and instructs the display unit 2 and the like to draw.

  The route searching unit 107 uses a Dijkstra method or the like to link a road (link) connecting a predetermined route (node) to a route connecting two designated points (current location, destination) with a link cost (for example, distance or travel). In terms of time), a route whose total cost on the route is the minimum with respect to other routes is searched.

  Further, when searching for a route including a toll road or the like, the existing ETC gate table 300 and the smart IC additional information table 500 are used. Accordingly, it is possible to perform a route search including a route that passes through the added smart IC to transfer from the toll road to the general road and a route that passes through the added smart IC and transfers from the general road to the toll road.

  The route guidance unit 108 performs route guidance using the route searched by the route search unit 107. For example, the information on the route is compared with the information on the current location, and the user is notified by voice using the voice input / output device 4 whether to go straight ahead or to turn left or right before passing through an intersection or the like. In addition, the route guidance unit 108 displays a direction to travel on the map displayed on the display unit 2 and notifies the user of the recommended route.

  The input receiving unit 109 receives an instruction from the user input via the input device 5 and controls each unit of the arithmetic processing unit 1 so as to execute processing corresponding to the requested content. For example, when the user requests a recommended route search, the display unit 106 is requested to display a map on the display unit 2 in order to set a destination. Further, the route search unit 107 is requested to calculate a route from the current location (departure location) to the destination.

  FIG. 8 is a diagram illustrating a hardware configuration example of the arithmetic processing unit 1.

  As shown in the figure, the arithmetic processing unit 1 has a configuration in which devices are connected by a bus 32. The arithmetic processing unit 1 includes a CPU (Central Processing Unit) 21 that executes various processes such as numerical calculation and control of each device, and a RAM (Random Access Memory) that stores map data, arithmetic data, and the like read from the storage device 3. ) 22, a ROM (Read Only Memory) 23 for storing programs and data, a DMA controller (Direct Memory Access Controller) 24 for executing data transfer between the memories and between the memory and each device, and graphics drawing A drawing controller 25 that executes and controls display, a video random access memory (VRAM) 26 that stores graphics image data, a color palette 27 that converts image data into RGB signals, and an A that converts analog signals into digital signals / D converter 28 and SC for converting serial signals into parallel signals synchronized with the bus Has a (Serial Communication Interface) 29, a PIO (Parallel Input / Output) 30 put on the bus to synchronize the parallel signals to the bus, a counter 31 for integrating a pulse signal.

  The functional units of the arithmetic processing unit 1 described above, that is, the main control unit 101, the ETC information receiving unit 102, the smart IC adding unit 103, the link adding unit 104, the time measuring unit 105, the display unit 106, the route searching unit 107, the route The guide unit 108 and the input receiving unit 109 are achieved by executing a program loaded on the RAM 22 by the CPU 21.

  Next, the operation of the in-vehicle navigation device 100 configured as described above will be described.

  FIG. 9 is a flowchart showing a flow of smart IC passage processing for performing processing such as registration of a smart IC when passing through an ETC gate such as a smart IC.

  The main control unit 101 starts this flow when the vehicle-mounted navigation device 100 is powered on.

  The ETC information receiving unit 102 waits until receiving the ETC passage information transmitted from the ETC in-vehicle device 11, and receives the ETC passage information (step S100).

  Next, the ETC information receiving unit 102 adds the ETC passage information received in step S100 to the ETC passage information table 400 (step S101).

  Specifically, when the passed ETC gate is a passage in a direction to enter a toll road or the like, the ETC information receiving unit 102, the ETC card number included in the ETC passage information and the name of the entrance toll gate And get.

  Then, the ETC information receiving unit 102 numbers the serial number 401 of the ETC passage information table 400, stores the ETC card number as the ETC card number 402, and stores the entrance toll gate name as the entrance toll gate name 403.

  When the ETC gate that has passed passes in the direction of leaving the toll road or the like, the ETC information receiver 102 receives the ETC card number, the exit toll gate name, and the payment fee included in the ETC passage information. And get.

  Then, the ETC information receiving unit 102 identifies a record in which the entrance toll gate name 403 is set and nothing is set in the exit toll gate name 404 and the payment fee 405 in the ETC passage information table 400.

  Then, the ETC information receiving unit 102 stores the acquired exit toll gate name as the exit toll gate name 404 and the acquired payment fee as the payment fee 405 for the specified record.

  Then, the ETC information receiving unit 102 instructs the display unit 106 to display the acquired ETC passage information, and the display unit 106 displays the ETC passage information (step S102).

  Here, the ETC passage information displayed on the display unit 106 is a screen 800 shown in FIG.

  The screen 800 includes an ETC passage information display area 801 and a smart IC registration information display area 802.

  The smart IC registration information display area 802 includes a road name display area 803, a smart IC temporary name display area 804, and a direction display area 805.

  For example, the ETC passage information display area 801 is an area for displaying a payment fee such as “Fee is XXX yen”.

  The road name display area 803 is an area for displaying the name of a toll road or the like equipped with the registered smart IC, and displays a road name such as “□□□□ toll road”.

  The smart IC temporary name display area 804 is an area for displaying a name of a municipality or the like of the area where the smart IC that has passed is installed, and displays “smart IC near ΔΔΔΔ” or the like.

  A direction display area 805 is an area for displaying a direction and an entrance of a toll road equipped with a smart IC, and displays “XX direction exit registered” or the like.

  In step S102, the ETC information receiving unit 102 displays the paid fee in the ETC passage information display area 801. That is, the ETC information receiving unit 102 acquires the payment fee information included in the received ETC passage information and instructs the display unit 106 to display the information on the payment fee. The display unit 106 creates the screen 800 Display.

  Next, the smart IC adding unit 103 determines whether or not the passed ETC gate is an existing ETC gate from the ETC passage information received in step S100 (step S103).

  Specifically, the smart IC adding unit 103 specifies the coordinates of the ETC passing point received in step S100 by inquiring the GPS receiver 9 or the like, and is in the vicinity of the specified coordinates (for example, within a radius of 200 m from the specified coordinates). The ETC gate is specified using the coordinates 302 of the existing ETC gate table 300.

  Then, the smart IC adding unit 103 determines whether or not the gate name 305 of the identified ETC gate matches the entrance toll gate name 403 or the exit toll gate name 404 of the ETC passage point received in step S100. If they match, it is determined that the passed ETC gate is an existing ETC gate.

  If the passed ETC gate is an existing ETC gate (ie, “Yes” in step S103), the process returns to step S100 because it is not necessary to add a smart IC.

  If the passed ETC gate is not an existing ETC gate (ie, “No” in step S103), the smart IC adding unit 103 determines whether or not the passed ETC gate has already been added (step S104).

  Specifically, the smart IC addition unit 103 refers to the smart IC addition information table 500, matches the coordinates of the ETC gate through which the coordinates 502 pass, and the entrance toll gate name 403 of the ETC gate through which the gate ID 501 passes. By determining whether or not it matches the exit toll gate name 404, it is determined whether or not it has already been added.

  If it has already been added as a smart IC (ie, “Yes” in step S104), the smart IC addition unit 103 performs the process of step S106 described later.

  If the smart IC has not been added yet (ie, “No” in step S104), the smart IC adding unit 103 creates smart IC additional information and smartly passes the ETC gate passed to the smart IC additional information table 500. It adds as IC (step S105).

  Specifically, the smart IC addition unit 103 creates a new record in the smart IC addition information table 500, and if it is an approach to a toll road, the entrance toll gate name 403 is entered in the gate ID 501 of the created record. Then, “Yes” is stored in the entrance 506, and “Yes” is stored in the exit toll gate name 404 and the exit 507 in the case of exit from the toll road.

  Then, the smart IC addition unit 103 acquires the coordinates of the passing point of the passed ETC gate specified in step S <b> 103 and stores them as the coordinates 502 of the smart IC additional information table 500.

  Then, the smart IC addition unit 103 acquires the name of the road to which the ETC gate passage point belongs from the common name 227 of the link table 200 and stores it as the road name 503 of the smart IC additional information table 500.

  Then, the smart IC addition unit 103 determines the up / down direction of the road to which the ETC gate passage point belongs, acquires the name of the direction determined for each road, and stores it as the direction 504 of the smart IC additional information table 500 To do.

  Then, the smart IC addition unit 103 acquires the name of the municipality to which the ETC gate passage point belongs, and stores it as the IC temporary name 505 of the smart IC addition information table 500.

  Then, the smart IC addition unit 103 instructs the display unit 106 to display the road name 503 of the smart IC addition information table 500 as a name such as a toll road in the road name display area 803 of the screen 800.

  Then, the smart IC addition unit 103 instructs the display unit 106 to display the municipality name of the IC temporary name 505 of the smart IC additional information table 500 in the smart IC temporary name display area 804 of the screen 800.

  Then, the smart IC addition unit 103 instructs the display unit 106 to display the name of the direction 504 of the smart IC addition information table 500 in the direction display area 805 of the screen 800.

  Then, the display unit 106 creates a screen 800 and displays it on the display unit 2.

  Next, the smart IC addition unit 103 creates additional link information and adds it to the link table 200 (step S106).

  Specifically, the link addition unit 104 performs a link creation process shown in FIG. 10 in order to create a link to be added. The link creation process will be described later.

  And the main control part 101 returns a process to step S100, after finishing the process of step S106.

  The above is the smart IC passage processing.

  FIG. 10 is a flowchart showing the flow of the link creation process corresponding to step S106 of the smart IC passage process.

  The link adding unit 104 starts this flow in step S106 of the smart IC passage process.

  First, the link addition unit 104 traces back the travel history and specifies a link close to the current location (step S200).

  Specifically, the link addition unit 104 specifies the travel link ID 602 of the link that has traveled immediately before from the travel history table 600.

  Next, the link adding unit 104 determines whether or not the link ID of the link that has traveled immediately before is unknown (step S201).

  Specifically, the link addition unit 104 determines that the link ID is not unknown if the reliability 603 obtained by performing the map matching of the travel link ID 602 specified in step S205 is equal to or higher than a predetermined value (for example, 60%), If the reliability 603 is not greater than or equal to the predetermined value, it is determined that the link ID is unknown.

  If the travel link ID 602 identified in step S200 is not unknown (ie, “No” in step S201), step S204 is executed.

  When the travel link ID 602 identified in step S200 is unknown (that is, “Yes” in step S201), the link addition unit 104 traces the traveled link from the travel history and performs map matching with a predetermined level of reliability. The closest point among the links is specified as a point that deviates (step S202).

  Specifically, the link adding unit 104 searches the travel history table 600 for the travel time from the record with the latest travel time 601 and the map matching reliability 603 is greater than or equal to a predetermined value (for example, 60%). Get a record of a link.

  Then, the link adding unit 104 acquires the travel link ID 602 of the acquired record, specifies the link ID 211 corresponding to the link ID from the link table 200, and specifies the coordinate information 222 of the corresponding start node as the departure point coordinates. To do.

  Next, the link addition unit 104 creates and adds a travel route from the deviated point identified in step S202 to the current location as an additional link (step S203).

  Specifically, the link addition unit 104 creates a link with the point that deviates identified in step S202 as the start node and the point that received the ETC passage information as the end node, and newly sets the link ID 211 of the link table 200. Numbered and stored, the start node and end node are stored in the coordinate information 222.

  Then, the link adding unit 104 adds information indicating the interchange to the road type 223, stores the distance traveled from the start node to the end node in the link length 224, and took the time to travel from the start node to the end node. The time is acquired from the time measuring unit 105 and stored in the link travel time 225.

  Next, the link addition unit 104 records the travel route in the travel history (step S204).

  Next, the link adding unit 104 determines whether or not the existing link is traveling every predetermined time (for example, 1 second) (step S205).

  Specifically, the link adding unit 104 acquires the result of the map matching process performed by the main control unit 101 on the currently traveling point, and stores the currently traveling point in the existing link, that is, the link data 200. It is determined whether the point belongs to the linked link.

  When the vehicle is not traveling on an existing link (that is, “No” in step S205), the link adding unit 104 returns the process to step S204.

  When traveling on an existing link (that is, “Yes” in step S205), the link adding unit 104 uses the current location as the merge point and based on the travel history from the point where the ETC gate passage information is acquired to the merge point. An additional link is created and added (step S206).

  Specifically, the link addition unit 104 creates a link with the point where the ETC passage information is received as the start node and the merge point as the end node, and newly stores the link ID 211 in the link table 200. And stored in the coordinate information 222.

  Then, the link adding unit 104 adds information indicating the interchange to the road type 223, stores the distance traveled from the start node to the end node in the link length 224, and took the time to travel from the start node to the end node. The time is acquired from the time measuring unit 105 and stored in the link travel time 225.

  Then, the link creation process ends.

  FIG. 12 is a diagram illustrating a change in route search by the smart IC passage process.

  FIG. 12A shows a road map before the smart IC is installed.

  In FIG. 12A, there are a link 901 on the expressway (to the right end in the figure), a link 902 on the expressway (on the left end in the figure), a link 903 on a general road that passes through the overpass of these expressways, 904, a general road link 905 at a point away from the general road links 903 and 904, a link 906 connected to the link 904, a destination 907 along the link 905, and a highway (toward the left end in the figure) There is an ETC gate 908 on a branch line connecting from the link 902 to the general road link 903.

  FIG. 12B shows a road map after the smart IC is installed.

  FIG. 12B shows, in addition to the facilities shown in FIG. 12A, a smart IC ETC gate 911, and a branch line 910 connecting the link 902 of the expressway (to the left end in the figure) to the smart IC ETC gate 911. 912, which is a branch line connecting the ETC gate 911 of the smart IC to the link 905 of the general road.

  In the state of FIG. 12A in which the branch line 910 and the branch line 912 and the ETC gate 911 of the smart IC do not exist, the vehicle traveling on the link 902 on the highway (to the left end in the figure) reaches the destination 907. For this purpose, for example, it is necessary to exit from the highway at the ETC gate 908, pass through the general road 903, pass through the general road (not shown), and reach the link 905 of the general road.

  However, in the state of FIG. 12B in which the ETC gate 911 of the smart IC exists, a vehicle traveling on the link 902 on the expressway (to the left end in the figure) can reach the destination 907, for example, Travel along the branch line 910, exit from the highway at the ETC gate 911 of the smart IC, travel along the branch line 912, and pass through the link 905 of the general road.

  Here, when the ETC gate 911 of the smart IC, the branch line 910, and the branch line 912 are constructed so that map information is not provided, it is possible to use each facility. Since the information is insufficient, the in-vehicle navigation device 100 cannot provide route guidance using each facility.

  Even in such a case, according to the in-vehicle navigation device 100 of the present invention, the smart IC ETC gate 911 once passed through the smart IC passage processing and the link creation processing is registered in the map information, and its branch line Link data is also registered for 910 and branch line 912, and after the next route search process, it passes through branch line 910, exits from the expressway using ETC gate 911 of the smart IC, passes through branch line 912, and link 905 on the general road The route to the destination 907 through the route can be searched.

  The embodiment of the present invention has been described above.

  In one embodiment of the present invention, when an ETC gate passes, it is determined whether the passed ETC gate is an existing ETC gate. If it is not an existing ETC gate, a smart IC is added at that point. The map information is updated so that the smart IC is added to the point, and when the road where the smart IC is installed is not an existing road, the road can be added to the road information.

  Therefore, when searching for a route using the smart IC, it is possible to search for an uninterrupted route including a point where the smart IC is installed.

  The present invention is not limited to the above embodiment. The above embodiment can be variously modified within the scope of the technical idea of the present invention.

  For example, in the above embodiment, the link table 200, the existing ETC gate table 300, the ETC passage information table 400, the smart IC additional information table 500, and the travel history table 600 are stored in the storage device of the in-vehicle navigation device 100. However, the present invention is not limited to this.

  That is, for example, each table is held in a server device provided in a facility such as an information center via a wireless network, and the in-vehicle navigation device 100 accesses the server device via the network and reads / writes each table. You may do it.

  Further, the information in the link table 200 and the smart IC additional information table 500 may be shared with other users of the in-vehicle navigation device 100 using the server device provided in the facility such as the information center. .

  By doing this, it becomes possible to perform route search using information updated by other users, so that route search using a new smart IC can be performed even in a region where it has not been performed. Is possible.

  The above is a modification.

  In the above embodiment, an example in which the present invention is applied to an in-vehicle navigation device has been described, but the present invention can also be applied to a navigation device other than the in-vehicle navigation device.

FIG. 1 is a schematic configuration diagram of an in-vehicle navigation device to which an embodiment of the present invention is applied. FIG. 2 is a diagram illustrating a configuration example of the link table 200. FIG. 3 is a diagram illustrating a configuration example of an existing ETC gate table 300. FIG. 4 is a diagram illustrating a configuration example of the ETC passage information table 400. FIG. 5 is a diagram illustrating a configuration example of the smart IC additional information table 500. FIG. 6 is a diagram illustrating a configuration example of the travel history table 600. FIG. 7 is a diagram illustrating a functional configuration of the arithmetic processing unit. FIG. 8 is a diagram illustrating a hardware configuration of the arithmetic processing unit. FIG. 9 is a flowchart of the smart IC passage process. FIG. 10 is a flowchart of the link creation process. FIG. 11 is a diagram illustrating a configuration example of the screen 800. FIG. 12 is a diagram illustrating a change in route search by the smart IC passage process.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Arithmetic processing part, 2 ... Display part, 3 ... Memory | storage device, 4 ... Voice input / output device, 5 ... Input device, 6 ... ROM apparatus, 7 ... Vehicle speed Sensor: 8 ... Gyro, 9 ... GPS receiver, 10 ... FM multiplex broadcast receiver, 11 ... ETC in-vehicle device, 20 ... In-vehicle navigation system, 21 ... CPU, 22 ... RAM, 23 ... ROM, 24 ... DMA controller, 25 ... drawing controller, 26 ... VRAM, 27 ... color palette, 28 ... A / D converter, 29. ..SCI, 30 ... PIO, 31 ... counter, 41 ... microphone, 42 ... speaker, 51 ... touch panel, 52 ... dial switch, 100 ... in-vehicle navigation device, 101 ... Main control unit 102 ... ETC information receiving unit 103 ... Smart IC adding unit 104 ... Link adding unit 105 ... Time measuring unit 106 ... Display unit 107 ... Route search 108, route guidance unit, 109 ... input reception unit

Claims (5)

Storage means;
A receipt information receiving means for receiving receipt information from the automatic fee collection device;
Smart IC information creating means for creating information including information on a location where the smart IC is installed from information included in the receipt information received by the receipt information receiving means;
Smart IC addition means for storing the smart IC information created by the smart IC information creation means in the storage means;
A vehicle-mounted navigation device comprising: The in-vehicle navigation device according to claim 1, further comprising:
Road information creating means for creating road information of a new road using the information on the point at which the receipt information receiving means received the receipt information;
Road addition means for storing the road information created by the road information creation means in the storage means;
A vehicle-mounted navigation device comprising: The in-vehicle navigation device according to claim 2, further comprising:
Current location acquisition means for acquiring location information of the current location of a vehicle equipped with the vehicle-mounted navigation device;
A destination receiving means for receiving designation of the destination;
Recommended route search for searching for a recommended route from the current location acquired by the current location acquisition unit to the destination received by the destination reception unit using the created smart IC information and the created road information. Means,
A vehicle-mounted navigation device comprising: The in-vehicle navigation device according to any one of claims 2 and 3,
The road information creating means includes the road information of the new road, starting from the last traveled point on the existing road, including the point at which the receipt information has been received, and joining the existing road to be traveled next Create a point as the end point,
An in-vehicle navigation device characterized by the above. A navigation method for a vehicle-mounted navigation device,
The in-vehicle navigation device is
A storage means,
A receipt information receiving step for receiving receipt information from the automatic fee collection device;
A smart IC information creating step for creating information including information on a position where the smart IC is installed from information included in the receipt information received in the receipt information receiving step;
A smart IC addition step of storing the smart IC information created in the smart IC information creation step in the storage means;
The navigation method characterized by performing.

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