JP4693558B2 - Navigation device - Google Patents

Description

  The present invention relates to a navigation apparatus, and more particularly to erasure of road traffic information acquired from outside such as VICS (Vehicle Information and Communication System).

  The navigation device detects the vehicle position, draws map data around the vehicle position on the display, displays the vehicle mark on the map, and scrolls the map when the vehicle position changes. It has a function to guide the road map.

  In addition, the navigation device is provided with a receiving device that receives road traffic information such as real-time traffic jam information and regulation information edited and processed at the VICS center. As shown in FIG. 7, the VICS Center uses Level 3 (map display type) and Level 2 (simple graphic display type) in each target area by FM multiplexing method, optical beacon, and radio beacon communication / broadcast media. ), Traffic information, link travel time, section travel information, regulation information, parking information, etc. are provided according to level 1 (character display type).

  The traffic jam information includes a traffic jam direction and a traffic jam level for each link ID indicating a road section, and the navigation device identifies and displays the traffic jam on the road using graphics or the like based on the traffic jam information. Regulation information includes information on accidents, construction, speed, lanes, etc., section travel information includes, for example, time information from a specific town to town, and link travel time includes time information from the intersection to the intersection. . When searching for a route to a destination, the navigation device refers to the road traffic information, reflects the dynamic road conditions, and calculates the optimum route.

  In order to solve the problem that it becomes difficult to see the original road and the vehicle position or the map is difficult to read when a plurality of roads and their traffic information are displayed at the same time, Patent Document 1 The display of the traffic congestion mark near the vehicle position can be deleted.

JP 2001-264082 A

  The navigation device is provided with a dynamic route search function that searches for a route once and searches whether there is a route that is more optimal than the current route while traveling on the route. For example, a route whose time is shorter than the current route is searched, or a route whose traveling time is shorter is searched. The dynamic route search is performed by referring to road traffic information such as VICS for road conditions that change from moment to moment. The dynamic route search is executed, for example, every 5 minutes from the start of driving, every time a certain distance is traveled, or every time a radio wave beacon or an optical beacon is received.

  The dynamic route search satisfies the guidance function according to the road condition, but at the same time, the demand for the accuracy of infrastructure information (road traffic information such as VICS) increases. For example, road traffic information obtained from the VICS Center takes about 1 to 2 hours to update the information. Therefore, although traffic congestion due to accidents has actually been resolved, , Traffic jam information may remain. As a result, in the dynamic route search, extra avoidance calculation that bypasses the traffic jam is performed, and the route quality after the search may deteriorate. Furthermore, even if the user can recognize that the accident has already been resolved, it is very uncomfortable if the detour route according to the VICS road traffic information cannot be changed, and It is inconvenient.

Therefore, the present invention provides a navigation device that solves the above-described conventional problems and allows a user to arbitrarily delete road traffic information from outside such as VICS.
A further object of the present invention is to provide a navigation device that improves the quality of a searched route in a dynamic route search.

  The navigation device according to the present invention includes an acquisition means for acquiring road traffic information from the outside, a search means capable of searching for a route to a destination based on the road traffic information, a display, a route searched for on the display, and a road traffic Display means for displaying information, input means, and control means for causing the search means to search for a route in a state where the road traffic information is erased when an instruction to erase the road traffic information is issued via the input means. Have.

  The road traffic information includes, for example, traffic jam information, regulation information, and link information that is a target of these. Preferably, the control means erases the road traffic information stored in the memory in response to an instruction to erase the road traffic information. The input means may display an input screen for instructing deletion of road traffic information on the display. The input screen may be displayed when a route or a road traffic mark displayed on the display is selected.

  A method for deleting road traffic information in a navigation device according to the present invention includes a step of acquiring road traffic information from the outside after a route search to a destination, and a step of executing a dynamic route search based on the acquired road traffic information Displaying a route searched by dynamic route search, erasing the selected road traffic information in response to user input, and re-searching the route in response to erasure of the road traffic information Including.

  According to the present invention, since it is possible to instruct deletion of road traffic information acquired from the outside via the input means, when the road traffic information is not updated due to a time lag or the like and does not reflect the current road conditions, etc. In addition, the user can arbitrarily delete the road traffic information. As a result, it is possible to improve route quality during route search based on road traffic information, particularly during dynamic route search.

  The best mode for carrying out the present invention will be described below in detail with reference to the drawings.

  FIG. 1 is a block diagram showing a configuration of an in-vehicle navigation device according to the present invention. As shown in the figure, the navigation device 1 includes a GPS receiver 10 that receives radio waves from a GPS satellite and measures the current position and current direction of the vehicle, a self-contained navigation sensor 12 that includes a vehicle speed sensor, a gyro sensor, and the like. A VICS / FM multiplex receiver 16 that receives current road traffic information outside the vehicle via an antenna 14, a touch panel 22, a user input interface 20 including a voice input unit 24 and a remote control operation unit 26, and a storage device having a large-capacity hard disk 30, a data communication control unit 32 that enables wireless or wired data communication, a sound output unit 40 that outputs sound from the speaker 42, a display control unit 50 that displays an image on the display 52, a program memory 60 that stores a program, Data memory 70 for temporarily storing data, and control unit 8 It contains.

  The VICS / FM receiver 16 receives road traffic information edited and processed at the VICS center by beacons and FM multiplex broadcasting. The road traffic information from the VICS center is as shown in FIG.

  The storage device 30 stores a program and a database for executing various navigation functions. The program includes functions necessary for navigation such as route search to the destination, calculation of estimated arrival time to the destination, and other route guidance. The database includes map data, facility data, and the like, and the map data includes road (link) data and intersection data related to roads. Link data is data related to roads connecting intersections, node data indicating the coordinates of the start and end points of roads, type data indicating road types (national roads, ordinary roads, prefectural roads, etc.), width, and regulations. In addition to data such as the number of lanes (for example, one-way traffic), information on the link cost used for route search or the time required for the link is included.

  The data communication control unit 32 may have a built-in communication function or may connect a mobile communication terminal or the like. The data communication control unit 32 is connected to a network such as the Internet, and can acquire information relating to road traffic information and the like from a desired website or server.

  The program memory 60 loads a program stored in the storage device 30, and includes, for example, a program 62 for searching for a route to a destination, a program 64 for route guidance, a program 66 for deleting road traffic information such as VICS, and the like. Store.

  The data memory 70 displays the map data 72 read from the storage device 30, the route data 74 searched for the route, the road traffic information 76 received from the VICS / FM multiplex receiver 16, and an erase screen for instructing to erase the road traffic information. 78 etc. are memorized.

  The navigation device of the present invention can arbitrarily delete road traffic information acquired from a VICS center or the like via the user input interface 20 at the user's own discretion. Hereinafter, with reference to the flowchart of FIG. 2, erasure of road traffic information during the dynamic route search of the navigation device will be described.

  First, when the user sets a destination via the input interface 20 and instructs to search for a route to the destination (step S101), the control unit 80 follows the route search program 62 from the vehicle position to the destination. Find the best route to The optimum route is, for example, the one having the shortest estimated arrival time to the destination or the one having the shortest travel distance to the destination. The link data stored in the storage device 30 includes the distance from the start point to the end point of the link and the speed information therebetween, and the estimated arrival time and travel distance can be calculated with reference to this.

  In accordance with the route guidance program 64, the control unit 80 displays a road map around the vehicle position on the display 52, draws the searched route on the road, and sequentially performs route guidance (step S102).

  Along with the traveling of the vehicle, the VICS / FM receiver 16 receives road traffic information from the VICS center (step S103), and the received road traffic information 76 is stored in the road traffic information 76 of the data memory 70 (step S104). If a traffic jam occurs due to an accident or construction regulation, the link ID that is the target of the traffic jam is stored along with the content of the traffic jam.

  When satisfying a certain trigger condition, the control unit 80 executes a dynamic route search (step S105). The dynamic route search is executed, for example, every time a certain time elapses, every time the vehicle travels a certain distance, or every time road traffic information is received from the VICS center.

  The control unit 80 compares the route searched by the dynamic route search with the previously searched route, and determines whether or not it is the optimum route (step S106). For example, it is compared whether the estimated arrival time to the destination is shorter than the previous route or whether the travel distance is shorter. When the optimum route is searched, the control unit 80 displays the re-searched route on the road map on the display (step S107).

  For example, as shown in FIG. 3A, a road map around the vehicle position M and a search route (hatched portion) R1 to the destination are drawn on the display screen. While the vehicle is traveling on a general road, road traffic information due to the traffic jam is obtained from the light beacon. As shown in FIG. 3 (b), there is a traffic jam J on the links L1 and L2 due to the occurrence of the crash K. To do. The road traffic information includes link ID information for identifying the links L1 and L2 that are subject to the traffic jam J in addition to the contents of the accident K. These information are stored in the data memory 70 as road traffic information 76. Is done. When executing the dynamic route search, the control unit 80 weights the speed information set for the links L1 and L2 that are subject to congestion, or uses the link travel time to re-route the route to the destination. Explore. As a result, FIG. 3B shows an example in which a route R2 that avoids the traffic jam J due to the accident K has been searched.

  The control unit 80 monitors whether there is an input from the user, for example, a touch input to the display (step S108). When the user touches the accident mark K or the links L1 and L2 drawn on the road map on the display, the control unit 80 displays the VICS erase screen 100 in response to the touch (step S109). . On the VICS deletion screen 100, an accident occurrence time and location “16:30 collision accident K Nerima-ku” are displayed, and a VICS deletion button 110 is displayed.

  If the user does not input the VICS deletion button 110 within a certain period of time, the route searched for the dynamic route is reset and the route guidance is started. On the other hand, the user touches the VICS deletion button 110 when he / she wishes to delete the road traffic information at his / her own discretion, including when he / she recognizes that the traffic congestion has been resolved or wants to travel on the link L1. Then, an erase instruction is given (step S110). Of course, you may instruct | indicate by other inputs, such as a remote control.

  When the instruction to delete the VICS is given, the control unit 80 deletes the road traffic information of the traffic jam J caused by the collision accident K from the data memory 70 (step S111). When an instruction to delete the VICS is given, the control unit 80 uses this as a trigger to re-search for a route to the destination (step S111). The most searched route is displayed on the display, and the route guidance is started (step S112).

  As described above, according to the present embodiment, by allowing the user to arbitrarily delete the road traffic information such as VICS, when the road traffic information no longer reflects the current road conditions, it is unnecessary. Avoidance calculation can be avoided, and improvement in route quality in dynamic route search can be expected. In addition, the usability of the VICS function is improved for the user.

  Next, another modification of the present invention will be described. In the above embodiment, the VICS deletion screen is displayed on the display in response to the user input. However, for example, as shown in FIG. 5, when displaying the route re-searched by the dynamic route search, the display is displayed. Two-screen display may be used, and the VICS deletion screen 100 may be displayed simultaneously on the other screen. If there is no instruction to the VICS deletion button 10 within a certain time, it may be considered that there is no intention to delete.

  Further, in the above-described embodiment, an example of VICS erasure at the time of the dynamic route search of the navigation device is shown, but the present invention is not necessarily limited to this. If the route is searched based on road traffic information from the VICS center when the user sets the destination, the road traffic information is deleted according to the user's instruction, and the route is searched again using this as a trigger. It may be.

  Furthermore, in the said Example, although the user specified the road traffic information which should be deleted by touching the accident mark and link displayed on the display, it is not necessarily limited to this. For example, in FIG. 4, the user may select a traffic jam mark J or an accident mark K with a cursor operated by a remote controller. Further, if the user touches any part of the display, the VICS erase screen 100 may be automatically displayed.

  Furthermore, an erasing mode for erasing road traffic information may be set from a menu screen, a VICS setting screen, or the like. When the erase mode is selected, the VICS erase screen 100 may be displayed on the display.

  Further, the road traffic information stored in the data memory may be read out according to an instruction from the user, and a list of road traffic information may be displayed on the display as shown in FIG. The list includes, for example, reception time, simple contents, a target route or link, a location, and a check box for selecting deletion. The user may delete the road traffic information by checking a check box of the road traffic information to be deleted from the list.

  Further, in the above-described embodiment, the example of deleting the road traffic information received from the VICS center has been shown. However, the present invention is not limited to this, and the road traffic information acquired by the navigation device from an external server or the like via network communication or the like. May be deleted. Further, in the above-described embodiment, the example in which the operation control of the navigation device is executed by software is shown, but other than this, it may be executed by hardware.

  The preferred embodiments of the present invention have been described in detail above. However, the present invention is not limited to the specific embodiments according to the present invention, and various modifications can be made within the scope of the gist of the present invention described in the claims. Deformation / change is possible.

  The navigation device according to the present invention is used as a vehicle-mounted navigation device such as a moving body. The navigation device may be used in combination with other electronic devices such as an audio device, a video device, and a television / radio receiver.

It is a block diagram which shows the structure of the navigation apparatus which concerns on the Example of this invention. It is a flowchart explaining the deletion operation | movement of the road traffic information by a present Example. It is a figure which shows the example of a route display by a dynamic route search. It is a figure which shows the example of a display of a VICS deletion screen. It is a figure which shows the example of a display by the other modification of this invention. It is a figure which shows the example of a list of road traffic information. It is a figure explaining the traffic information road traffic information from the VICS center.

Explanation of symbols

1: Navigation device 16: VICS / FM multiple receiver 20: User input interface 30: Storage device 52: Display 60: Program memory 70: Data memory 80: Control unit 100: VICS deletion screen 110: Delete button

Claims (7)

A navigation device for searching for a route to a destination and guiding the searched route,
An acquisition means for acquiring road traffic information from outside;
Search means capable of searching for a route to a destination based on road traffic information;
Display,
Display means for displaying the searched route and road traffic information on the display;
Input means;
Monitoring means for monitoring the presence or absence of touch input to the road traffic information displayed on the display via the input means after the route and road traffic information searched by the display means are displayed;
When there is a touch input to the road traffic information, an erasure screen including an acquisition time, content, and location of the road traffic information input by touch and an erasure instruction for instructing erasure of the road traffic information is displayed. is displayed, when the deletion instruction through said input means is performed, and control means for searching for a route to the search means in a state in which the relevant road traffic information has been erased,
A navigation device. The navigation device according to claim 1, wherein the control means switches the display to a two-screen display, displays the searched route and road traffic information on one screen, and displays the erasure screen on the other screen. The navigation device according to claim 1, wherein the erasure screen includes a list of a plurality of road traffic information stored in a memory. The navigation device according to claim 1, wherein the road traffic information includes at least link information that is subject to traffic jam or regulation. The navigation device according to claim 1 or 2, wherein the control means erases the road traffic information stored in the memory in response to the erase instruction . A method for deleting road traffic information in a navigation device,
Obtaining road traffic information from outside after route search to the destination;
Performing a dynamic route search based on the acquired road traffic information;
Displaying the route and road traffic information searched by dynamic route search on a display ;
Monitoring the presence or absence of touch input to the road traffic information displayed on the display via the input means after the route and road traffic information searched by the dynamic route search are displayed;
When there is a touch input to the road traffic information, an erasure screen including an acquisition time, content, and location of the road traffic information input by touch and an erasure instruction for instructing erasure of the road traffic information is displayed. Steps to display
A step of erasing the corresponding road traffic information when an erasure instruction is given via the input means;
Re-searching the route in response to erasure of the road traffic information. The erasing method according to claim 6, wherein the displaying step switches the display to a two-screen display, displays the searched route and road traffic information on one screen, and displays the erasure screen on the other screen.

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