JP2008249380A - On-vehicle navigation device and program - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an on-vehicle navigation device capable of prohibiting interruption with display of traffic information having no relation with a traveling route. <P>SOLUTION: A processing part 16 provided on the on-vehicle navigation device 1 executes following processing following a program read out from a ROM 17. The processing part 16 stores in a RAM 18, discrimination information of roads constituting the traveling route searched for by a route searching part 15. When a VICS (Vehicle Information and Communication System) reception part 20 receives VICS information of level 1 and level 2 and discrimination information of a beacon installation road from a beacon installed on the road, the processing part 16 determines whether some of discrimination information of the road relative to a traveling route stored in a RAM 18 agrees with the discrimination information of the beacon installation road or not. When determined to be disagreeing, the processing part 16 prohibits interruption display of received VICS information on a display part 21. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to an in-vehicle navigation device and a program that receive and display traffic information.

  An in-vehicle navigation device that searches and sets a travel route from the departure point to the destination point, and displays the travel route on the display unit together with the current position and the surrounding map when the departure point and the destination point are input, and performs route guidance Is widely used. Along with route guidance, a VICS-compatible in-vehicle navigation device that immediately receives traffic information called VICS (registered trademark, Vehicle Information and Communication System) information and displays information such as traffic congestion and traffic regulations on the display unit is also used. ing. VICS collects traffic information such as traffic jams, accidents, regulations, and section travel times obtained by various means, collected by road managers, processed and edited at the VICS center, and provided to in-vehicle navigation devices that support VICS. System.

  The VICS information providing means includes a beacon that provides local information and FM multiplex broadcasting that provides wide area information. The beacons are mainly composed of radio wave beacons installed on highways and optical beacons installed on ordinary roads. The radio wave beacon and the optical beacon respectively provide information about a highway and a surrounding general road about 200 km ahead of the vehicle and information about a general road and a highway about 10 to 30 km ahead of the vehicle. The reception distance of the radio wave transmitted by the radio beacon is about 70 m, which is longer than the infrared reception distance of 3.5 m transmitted by the optical beacon. FM multiplex broadcasting provides general information covering a wide range of prefectures. The VICS information is updated at regular time intervals (for example, 5 minutes) and provided for 24 hours. This VICS information information display mode has three levels: level 1 is a character display type, level 2 is a simple graphic display type, and level 3 is a map display type.

When the in-vehicle navigation device receives the level 1 or level 2 VICS information from the beacon, the display unit of the in-vehicle navigation device displays the character information included in the level 1 VICS information or the simplified graphic included in the level 2 VICS information. Information is immediately interrupted and displayed (see Patent Document 1). The driver recognizes at a glance the traffic information consisting of traffic jam information and traffic regulation information interrupted and displayed on the display during driving, and adjusts to the traffic conditions of traffic that are indicated by the traffic information and changes every moment. It is possible to travel by selecting few roads. The level 3 VICS information includes traffic regulation information provided as text information, parking lot / SAPA (Service Area and Parking Area) information, and congestion information provided as numerical data. When the in-vehicle navigation device receives the level 3 VICS information, the in-vehicle navigation device does not perform the interrupt display on the display unit, but displays it according to the instruction from the driver.
Japanese Patent Laid-Open No. 10-135852

  However, in Patent Document 1, when traveling on a general road under an elevated expressway, by receiving level 1 or level 2 VICS information sent from a radio beacon installed on the expressway, Although the vehicle is traveling on a general road, the VICS information of the expressway may be interrupted and displayed on the display unit, causing a problem of confusion for the driver. In recent years, since many radio beacons are installed, VICS information of expressways is frequently interrupted and displayed on the road while driving on general roads, and the current position, surrounding map, and travel route displayed on the display unit. There was a problem in that the situation in which the visibility of the vehicle was hindered frequently occurred and caused the driver's anxiety.

  The present invention has been made in view of such circumstances, and when the road where the beacon is installed does not coincide with any of the roads constituting the travel route, the present invention is provided with an interrupt prohibiting means for prohibiting the interrupt display. It is an object of the present invention to provide an in-vehicle navigation device and a program capable of reducing frequent interruption display of traffic information not related to a route and preventing a driver's confusion and anxiety.

  The present invention stores the received traffic information and has a reading display means for reading and displaying the received traffic information according to the display instruction received by the reception unit, so that the driver is stored even when the traffic information is not interrupted and displayed. It is an object of the present invention to provide a highly convenient in-vehicle navigation device capable of appropriately reading and displaying traffic information.

  In the present invention, when the road where the beacon is located does not coincide with the road related to the location, the traffic information unrelated to the road related to the location is frequently interrupted by providing an interrupt prohibition means for prohibiting the interrupt display. An object of the present invention is to provide an in-vehicle navigation device capable of reducing display and preventing driver's confusion and anxiety.

  An in-vehicle navigation device according to the present invention includes a route search unit that searches for a travel route from a departure point and a destination point, a display unit that displays the travel route searched by the route search unit, and a beacon installed on a road. A traffic information receiving unit that receives the traffic information sent and the identification information of the road on which the beacon is installed, and an interrupt display means for interrupting and displaying the traffic information received by the traffic information receiving unit on the display unit; In the vehicle-mounted navigation device provided with the determination unit, the determination unit that determines whether the identification information matches any one of the identification information of the road group that constitutes the travel route, and the determination unit determines that the determination unit does not match And interrupt prohibiting means for prohibiting interrupt display of the interrupt display means.

  In this in-vehicle navigation device, when the traffic information receiving unit receives traffic information sent from a beacon and identification information of a road where the beacon is installed, any of the identification information of the road group constituting the travel route is the received identification information. It is determined by the determination unit whether or not they match. The interrupt prohibiting means prohibits the traffic information interrupt display when it is determined that the determination means do not match.

  The in-vehicle navigation device according to the present invention includes a storage unit that stores the traffic information, a reception unit that receives a display instruction, and reads the traffic information stored in the storage unit when the reception unit receives the display instruction. Reading display means for displaying on the display unit.

  This in-vehicle navigation device stores the received traffic information in the storage unit. The reading display means reads the stored traffic information and displays it on the display unit when the receiving unit receives the display instruction.

  The vehicle-mounted navigation device according to the present invention includes a position detection unit that detects a location position on a road, a display unit that displays the location position, traffic information transmitted from a beacon installed on the road, and the beacon. In the in-vehicle navigation device comprising: a traffic information receiving unit that receives identification information of an installed road; and an interrupt display unit that interrupts and displays the traffic information received by the traffic information receiving unit on the display unit. A determination unit that determines whether or not the information matches the identification information of the road related to the location, and an interrupt that prohibits the interrupt display of the interrupt display unit when it is determined that the determination unit does not match And a prohibiting means.

  In this in-vehicle navigation device, when the traffic information receiving unit receives traffic information sent from a beacon and identification information of the road where the beacon is installed, whether the received identification information matches the identification information of the road related to the location Is determined by the determination unit. The interrupt prohibiting means prohibits the traffic information interrupt display when it is determined that the determination means do not match.

  A program according to the present invention includes a route search unit that searches for a travel route from a departure point and a destination point, a display unit that displays the travel route searched by the route search unit, and a beacon installed on a road. A traffic information receiving unit for receiving the traffic information received and the identification information of the road where the beacon is installed, and an interrupt display means for interrupting and displaying the traffic information received by the traffic information receiving unit on the display unit. In the program for causing the in-vehicle navigation device provided to function, a determination step for determining whether the identification information matches any one of the identification information of the road group constituting the travel route in the in-vehicle navigation device; When it is determined that the determination steps do not match, an interrupt prohibiting step for prohibiting interrupt display of the interrupt display means is executed.

  In this program, when the traffic information receiving unit provided in the in-vehicle navigation device receives the traffic information sent from the beacon and the identification information of the road where the beacon is installed, the received identification information of the road group constituting the travel route It is determined whether or not it matches any one of the pieces of identification information. If it is determined that they do not match, the in-vehicle navigation device is caused to function so as to prohibit the interrupt display of traffic information.

  In the present invention, when the road where the beacon is installed does not coincide with any of the roads constituting the travel route, it is provided with an interrupt prohibition means or an interrupt prohibition step for prohibiting the interrupt display. It is possible to reduce the frequent interruption display of no traffic information, and to prevent driver's anxiety and confusion.

  In the present invention, when the traffic information is missed by providing a storage unit for storing the received traffic information and a reading display means for reading and displaying when the reception unit receives a display instruction, The driver can appropriately read and display the stored traffic information to provide highly convenient in-vehicle navigation.

  In the present invention, when the road where the beacon is installed does not coincide with the road related to the location, the traffic information unrelated to the road related to the location is frequently provided by providing an interrupt prohibition means for prohibiting the interrupt display. It is possible to reduce the interruption display and to prevent the driver's anxiety and confusion.

Embodiment 1
Hereinafter, the present invention will be described in detail with reference to the drawings showing embodiments thereof. FIG. 1 is a block diagram illustrating a configuration example of the in-vehicle navigation device according to the first embodiment. In the figure, reference numeral 1 denotes an in-vehicle navigation device according to the present invention, which includes a GPS receiver 12 that receives GPS radio waves from a plurality of GPS (Global Positioning System) satellites, a gyro, a vehicle speed sensor, a tilt sensor, and the like. A self-contained navigation sensor unit 13 that detects a travel locus and the like, and a data storage unit 11 including a storage medium such as an HDD (Hard Disk Drive) that stores road network data, route calculation data, and map data are provided.

  Further, the in-vehicle navigation device 1 is provided on the road network indicated by the road network data stored in the data storage unit 11 based on the GPS radio wave received by the GPS receiver 12 and the information detected by the self-contained navigation sensor unit 13. A position detection unit 14 that detects a position, a route search unit 15 that searches for a travel route from a departure point to a destination point based on road network data and route calculation data stored in the data storage unit 11, and VICS information The VICS receiving unit 20 that receives the command, the receiving unit 19 that receives an instruction from the driver, and the display unit 21 that displays a current position display screen, a route guidance screen, and the like. The VICS receiving unit 20 is configured to be able to always receive radio waves emitted mainly by radio beacons installed on highways and infrared rays emitted by optical beacons installed on general roads.

  Further, the in-vehicle navigation device 1 includes a processing unit 16 that controls each hardware and performs various calculations, a RAM 18 that stores temporary information associated with the calculation and a list of route link numbers, which will be described later, and the time in the processing unit 16. A CLOCK 22 to be output and a ROM 17 for storing a program 171 executed by the processing unit 16 are provided. The processing unit 16 functions as a determination unit and an interrupt prohibition unit in the present invention by executing the program 171.

  The position detector 14 estimates the current position by a GPS positioning method based on the GPS radio wave received by the GPS receiver 12, and the current position estimated by information such as the vehicle attitude information and the travel locus given from the autonomous navigation sensor unit 13. The position is corrected, and the current position on the road network indicated by the road network data read from the data storage unit 11 is detected at regular time intervals. The position detection unit 14 outputs road network data and map data around the current position read from the data storage unit 11 together with the detected current position to the processing unit 16 at regular time intervals.

  The processing unit 16 creates a current position display screen based on the current position given at regular time intervals, road network data around the current position, and map data, and outputs and displays the current position display screen on the display unit 21. As a result, a current position display screen that changes momentarily as the vehicle on which the in-vehicle navigation device 1 is mounted is displayed on the display unit 21. For the input of the departure point and destination point to the in-vehicle navigation device 1, the processing unit 16 displays a selection screen including a list of names of departure point and destination point on the display unit 21, and the selection instruction received by the reception unit 19 is displayed. This is done by detecting the processing unit 16. The processing unit 16 outputs the input departure point and destination point to the route search unit 15. You may make it input the present position which the position detection part 14 detected as a departure point.

  In the road network data, the minimum unit representing a road section is called a link. That is, each road is composed of a plurality of links set for each predetermined road section, and each link is assigned a different link number. The point where the links are connected is called a node, and each node is assigned a different node number and has position information. In the route calculation data stored in the data storage unit 11, information called link cost for representing the time required to pass is recorded corresponding to each link representing major trunk roads throughout Japan. .

  When the departure point and the destination point are input to the route search unit 15, the route calculation from the departure point to the destination point is performed by a predetermined algorithm based on the route calculation data, and the total link cost to the destination point is minimized. A travel route is searched. The route search unit 15 outputs the searched travel route to the processing unit 16. The processing unit 16 stores, in the RAM 18, a route link number list that is a list of link numbers of the link groups that constitute the travel route as identification information of the road groups that constitute the travel route. In addition, the processing unit 16 creates and displays a route guidance screen including right and left turn symbols that are appropriately designated according to the travel route based on the current location, road network data around the current location, map data, and the travel route. It outputs to the part 21 and displays it.

  FIG. 2 is a schematic diagram illustrating an example of a route guidance screen. In the example shown in FIG. 2, a symbol indicating a road, an intersection, street names A and B, which are road names, a current position indicated by a black triangle, a symbol indicating a driver to turn left at the next intersection, In addition, C pond is displayed. The processing unit 16 updates the route guidance screen displayed on the display unit 21 based on the current position updated by the position detection unit 14 as the vehicle on which the vehicle-mounted navigation device 1 is mounted.

  FIG. 3 is a schematic diagram illustrating an example of a road network and installed beacons. The road network in FIG. 3 shows a part of the road network based on the road network data stored in the data storage unit 11, and white circles and solid lines shown in the figure indicate nodes and links, respectively. The numbers assigned to each node and each link indicate a node number and a link number, respectively, and are included in the road network data stored in the data storage unit 11. The link 64 intersects the link 61 in an elevated state. Next, using the example shown in FIG. 3, processing related to the interrupt display of VICS information executed by the processing unit 16 will be described.

  In the example shown in FIG. 3, the link 64 is provided with a beacon 64 </ b> B that provides level 2 VICS information in the vicinity of a point where the link 61 intersects. A part of the link 61 passes through the reception range of the beacon 64B. The link 60 is provided with a beacon 60B for providing level 1 VICS information. When links 60, 61, and 62 are included in the travel route searched by the route search unit 15, the link numbers 60, 61, and 62 are stored in the route link number list stored in the RAM 18. The driver passes through the link 60, the node 51, the link 61, the node 52, and the link 62 from the node 50 on the travel route according to the route guidance screen displayed on the display unit 21. Drive toward node 53.

  The VICS information includes level information indicating at which level traffic information is provided among levels 1, 2 and 3. The level 1 VICS information includes text information composed of sentences expressing the name of a traffic jam point, the traffic jam distance, the required time between specific points, and the like. Level 2 VICS information includes simple graphic information indicating traffic information composed of geometric graphics. The level 3 VICS information includes numerical information indicating a traffic jam situation and a traffic regulation situation. The beacon transmits the link number of the road where the beacon is installed together with the VICS information. When the vehicle equipped with the in-vehicle navigation device 1 reaches the reception range of the beacon 60B on the link 60, the VICS reception unit 20 receives the VICS information and the link number 60 of the road where the beacon is installed from the beacon 60B and outputs it to the processing unit 16. To do. The processing unit 16 stores the acquired VICS information in the RAM 18.

  When the level information included in the VICS information indicates level 1 or 2, the processing unit 16 includes the link number 60 of the road where the acquired beacon is installed in the route link number list stored in the RAM 18. It is determined whether or not. The processing unit 16 interrupts and displays the acquired character information or simple graphic information on the route guidance screen displayed on the display unit 21 when it is determined that it is included. In the example shown in FIG. 3, the level information of the VICS information received from the beacon 60B indicates level 1, and it is determined that the link number 60 of the road where the beacon 60B is installed is included in the route link number list. , The character information included in the VICS information is interrupted and displayed on the display unit 21.

  4 and 5 are schematic diagrams showing examples of route guidance screens on which character information and simple graphic information are interrupted and displayed, respectively. When performing the interrupt display, the processing unit 16 replaces part of the screen data of the route guidance screen output to the display unit 21 with the level 1 character information or the level 2 simple graphic information output from the VICS receiving unit 20. As a result, the display unit 21 displays the interrupt. In the example shown in FIG. 4, a part of the route guidance screen is replaced with character information displayed as “traffic congestion up to A street Y” and “congested traffic up to B street Z”. In the example shown in FIG. 5, a part of the route guidance screen is replaced with simple graphic information drawn with “A street”, “Y”, white arrows, squares, and the like, and is displayed by interruption.

  When the vehicle equipped with the in-vehicle navigation device 1 reaches the reception range of the beacon 64B installed on the link 64 while traveling on the link 61, the VICS receiver 20 links the VICS information and the road where the beacon is installed from the beacon 64B. The number 64 is received and output to the processing unit 16. The processing unit 16 stores the acquired VICS information in the RAM 18. In the example shown in FIG. 3, the processing unit 16 determines that the link number 64 of the road where the beacon 64B is installed is not included in the route link number list, and displays the simple graphic information included in the level 2 VICS information. Interrupt display is prohibited by not performing. When the processing unit 16 detects that the reception unit 19 has received a display instruction, the processing unit 16 reads out the VICS information stored in the RAM 18 and outputs the VICS information to the display unit 21 for display.

  FIG. 6 is a flowchart showing the display process. The processing unit 16 creates a list of route link numbers from the travel route given from the route search unit 15 described above and stores it in the RAM 18, and then executes display processing according to the program 171 stored in the ROM 17. The processing unit 16 determines whether or not the VICS receiving unit 20 has received VICS information (step S11). If the processing unit 16 determines that the VICS information has not been received (NO in step S11), the processing unit 16 returns the process to step S11 for determining whether or not the VICS information has been received. When the VICS receiving unit 20 receives the VICS information (YES in step S11), the processing unit 16 acquires the current time indicated by the CLOCK 22 as the reception time of the VICS information (step S12).

  The processing unit 16 acquires level information included in the received VICS information (step S13). The processing unit 16 determines whether the level information is level 1 or level 2 (step S14). When the processing unit 16 determines that the level information is level 1 or level 2 (YES in step S14), the processing unit 16 executes an interrupt determination process described later (step S15). The processing unit 16 determines whether or not the free capacity of the RAM 18 is equal to or less than a predetermined value capacity (step S16). The predetermined value capacity may be set in advance by empirically determining that the situation in which the received VICS information cannot be stored due to a lack of free space in the RAM 18 due to the data capacity and reception frequency of the received VICS information does not occur.

  If the processing unit 16 determines that the capacity is equal to or less than the predetermined value capacity (YES in step S16), the VICS information with the old reception time stored in the RAM 18 is deleted (step S17), and the free capacity of the RAM 18 is equal to the predetermined value capacity. The process returns to step S16 to determine whether or not the following is true. When it is determined in step S16 that determines whether or not the free space of the RAM 18 is equal to or less than the predetermined value capacity (NO in step S16), the processing unit 16 determines that the level information is level 1 or level. If it is determined in step S14 that it is not 2 or not (NO in step S14), the received VICS information is stored in the RAM 18 together with the reception time (step S18). Thereafter, the process returns to the above-described step S11, and waits for reception of the next VICS information.

  FIG. 7 is a flowchart showing the interrupt determination process. The processing unit 16 executes the following processing according to the program 171 stored in the ROM 17. The processing unit 16 acquires the beacon installation link number Lb received by the VICS receiving unit 20 together with the VICS information (step S31). The processing unit 16 reads the route link number list stored in the RAM 18 and acquires the route link numbers Lr (1) to Lr (n) (step S32). Here, n indicates the total number of link numbers included in the route link number list. The processing unit 16 resets the counter i stored in the RAM 18 (step S33).

  The processing unit 16 increments the counter i (step S34). The processing unit 16 determines whether or not the counter i is equal to or less than the total number n of link numbers (step S35). If it is determined that the number is equal to or less than n (YES in step S35), the processing unit 16 determines whether or not the beacon installation link number Lb matches the route link number Lr (i) (step S36). If the processing unit 16 determines that they match (YES in step S36), the processing unit 16 interrupts and displays the character information or simple graphic information included in the VICS information on the route guidance screen displayed on the display unit 21 ( Step S37), the interrupt determination process is terminated.

  When determining that the beacon installation link number Lb does not match the route link number Lr (i) in step S36, the processing unit 16 increments the counter i when it does not match (NO in step S36). The process returns to step S34. Thereby, interrupt display is prohibited. If the processing unit 16 determines in step S35 that it is determined whether or not the counter i is equal to or less than the total number n of link numbers (NO in step S35), the interrupt determination process ends.

  FIG. 8 is a flowchart showing the readout display process. The processing unit 16 is executed in parallel with the above-described display processing after the in-vehicle navigation device 1 is started according to the program 171 stored in the ROM 17. The processing unit 16 determines whether or not the reading instruction received by the receiving unit 19 has been detected (step S41). If the processing unit 16 determines that it has not been detected (NO in step S41), the processing unit 16 returns the processing to step S41 for determining whether or not the reading instruction received by the receiving unit 19 has been detected. If the processing unit 16 determines that it has been detected (YES in step S41), it determines whether or not VICS information is stored in the RAM 18 (step S42).

  If it is determined that it is not stored (NO in step S42), processing unit 16 returns the process to step S41 that waits until it is detected that a reading instruction has been received. If the processing unit 16 determines that it is stored (YES in step S42), the processing unit 16 reads the VICS information stored in the RAM 18 (step S43). The processing unit 16 stops displaying the route guidance screen or the current position display screen displayed on the display unit 21 and displays the read VICS information (step S44).

  The processing unit 16 determines whether or not it has been detected that the receiving unit 19 has received a display end instruction (step S45). If not detected (NO in step S45), the processing unit 16 waits until the receiving unit 19 detects that a display end instruction has been received. If detected (YES in step S45), the processing unit 16 stops displaying the VICS information displayed on the display unit 21 and displays a route guidance screen or a current position display screen (step S46). Thereafter, the process returns to step S41 described above, and waits until the next reading instruction received by the receiving unit 19 is detected.

  In the first embodiment, the example in which the route search unit 15 searches for the travel route from the input departure point and destination point is shown, but the present invention is not limited to this, and the departure point and destination point are not input. In this case, the processing unit 16, the position detection unit 14, and the route search unit 15 may be configured to set a road corresponding to the current position as a travel route. As a result, when it is determined that the traveling road corresponding to the current position set as the traveling route and the beacon-installed road do not match, the interrupt display of the VICS information is prohibited, so that the route guidance is performed. Even in an undisclosed state, it is possible to reduce the frequent interruption display of VICS information that is not related to the running road.

Embodiment 2
FIG. 9 is a block diagram illustrating a configuration example of the in-vehicle navigation device according to the second embodiment. In FIG. 9, the same reference numerals are given to the same configurations of the in-vehicle navigation device of the second embodiment and the in-vehicle navigation device of the first embodiment, and the description thereof is omitted. An EEPROM 23 and a storage medium reading unit 24 are connected to the processing unit 16 of the in-vehicle navigation device 1. The EEPROM 23 is a rewritable memory that stores the program 171 of the present invention, and is a flash memory or the like. The processing unit 16 is configured to execute processing necessary for the in-vehicle navigation device 1 of the present invention in accordance with the program 171 of the present invention stored in the EEPROM 23.

  The program 171 causes the in-vehicle navigation device 1 to store in the RAM 18 the link numbers of the roads that constitute the travel route searched by the route search unit 15. When the VICS receiving unit 20 receives the level 1 and level 2 VICS information and the link number of the road where the beacon is installed from the beacon installed on the road, the program 171 configures the road constituting the travel route stored in the RAM 18. It is determined whether or not any of the link numbers matches the link number of the road where the beacon is installed. If they do not match, interrupt display of the received VICS information is prohibited. The program 171 is recorded in a storage medium 25 that is inserted into the storage medium reading unit 24. The program 171 may be stored in the EEPROM 23 from the storage medium 25 via the storage medium reading unit 24 and executed.

  The program 171 according to the present invention can be stored not only in the storage medium 25 such as a CD-ROM or DVD-ROM but also in an external memory such as a memory card. In this case, the program 171 is read from an external memory (not shown) connected to the processing unit 16 and stored in the EEPROM 23. Further, communication may be established between a communication unit (not shown) connected to the processing unit 16 and an external server computer, and the program may be downloaded to the EEPROM 23.

  The second embodiment is configured as described above, and other configurations and operations are the same as those of the first embodiment. Therefore, corresponding parts are denoted by the same reference numerals, and detailed description thereof is omitted.

1 is a block diagram illustrating a configuration example of an in-vehicle navigation device according to Embodiment 1. FIG. It is a schematic diagram which shows the example of a route guidance screen. It is a schematic diagram which shows the example of a road network and the beacon installed. It is a schematic diagram which shows the example of the route guidance screen on which character information was interrupt-displayed. It is a schematic diagram which shows the example of the route guidance screen on which the simple graphical information was interrupt-displayed. It is a flowchart which shows a display process. It is a flowchart which shows an interruption determination process. It is a flowchart which shows a reading display process. It is a block diagram which shows the structural example of the vehicle-mounted navigation apparatus which concerns on Embodiment 2. FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 In-vehicle navigation apparatus 11 Data storage part 12 GPS receiving part 13 Autonomous navigation sensor part 14 Position detection part 15 Path | route search part 16 Processing part 17 ROM
18 RAM
19 reception part 20 VICS reception part 21 display part 22 CLOCK
171 program

Claims (4)

A route search unit that searches for a travel route from a departure point and a destination point, a display unit that displays the travel route searched by the route search unit, traffic information sent from a beacon installed on a road, and the beacon In a vehicle-mounted navigation device comprising a traffic information receiving unit that receives identification information of a road on which the vehicle is installed, and an interrupt display unit that interrupts and displays the traffic information received by the traffic information receiving unit on the display unit,
Determining means for determining whether or not the identification information matches any one of the identification information of the road group constituting the travel route;
An in-vehicle navigation device comprising: an interrupt prohibiting unit that prohibits the interrupt display of the interrupt display unit when it is determined that the determination unit does not match. A storage unit for storing the traffic information;
A reception unit for receiving display instructions;
The vehicle-mounted navigation device according to claim 1, further comprising: a reading display unit that reads out the traffic information stored in the storage unit and displays the traffic information on the display unit when the receiving unit receives the display instruction. . Receives a position detector for detecting the location on the road, a display for displaying the location, traffic information sent from a beacon installed on the road, and identification information for the road on which the beacon is installed. An in-vehicle navigation device comprising: a traffic information receiving unit; and an interrupt display means for interrupting and displaying the traffic information received by the traffic information receiving unit on the display unit.
Determining means for determining whether or not the identification information matches the identification information of the road relating to the location;
An in-vehicle navigation device comprising: an interrupt prohibiting unit that prohibits the interrupt display of the interrupt display unit when it is determined that the determination unit does not match. A route search unit that searches for a travel route from a departure point and a destination point, a display unit that displays the travel route searched by the route search unit, traffic information sent from a beacon installed on a road, and the A vehicle-mounted navigation device comprising a traffic information receiving unit that receives identification information of a road where a beacon is installed, and an interrupt display unit that interrupts and displays the traffic information received by the traffic information receiving unit on the display unit In the program to let
In-vehicle navigation system
A determination step of determining whether or not the identification information matches any of the identification information of the road group constituting the travel route;
When it is determined that the determination steps do not match, an interrupt prohibiting step for prohibiting interrupt display of the interrupt display means is executed.

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