JP2011220781A - On-vehicle navigation device and surrounding facilities search and display method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an on-vehicle navigation device and a surrounding facilities search and display method which can easily perceive a destination facility as a facility within a particular regulation area.SOLUTION: On-vehicle navigation device comprises a display means, an information input means to input information that the user indicates, a map data storage means which stores map information including information on a regulation area which shows that only vehicles that meet prescribed terms can pass, a storage means which stores passing propriety information showing whether a vehicle can pass the regulation area, and a control means. The control means judges from passing propriety information whether the vehicle can pass such regulation area when the facility searched based on information acquired via the information input means is within the regulation area, and displays on a screen of the display means in a discernible way that the facility is within the regulation area when it is judged that the vehicle cannot pass.

Description

  The present invention relates to an in-vehicle navigation device and a peripheral facility search display method having a function of easily displaying a restricted area that only allowed vehicles can pass through.

  Conventional typical vehicle-mounted navigation devices include a control device such as a CPU that controls all processes related to navigation, a storage device such as a DVD (Digital Versatile Disk) -ROM or an IC memory card that stores map data in advance, It has a display device, a GPS (Global Positioning System) receiver, a detection device for detecting the current position and current direction of the vehicle, such as a gyroscope and a vehicle speed sensor. Then, the control device reads out map data including the current position of the vehicle from the storage device, displays a map image around the vehicle position on the display device screen based on the map data, and indicates the current position of the host vehicle. The vehicle position mark to be displayed is superimposed on the map image, the map image is scrolled according to the movement of the vehicle, the map image is fixed on the screen and the vehicle position mark is moved, and where the vehicle is currently located. You can see at a glance whether you are driving.

  In-vehicle navigation devices are usually equipped with a function (route guidance function) that guides a user so that the user can easily travel on the road without making a mistake. According to this route guidance function, the optimal route (typically the route with the lowest cost) that connects from the departure point (typically the current position of the vehicle) to the destination using the map data by the control device. Is automatically searched by performing simulation calculation such as horizontal search method or Dijkstra method, and the searched route is stored as a guide route, and the guide route can be distinguished from other roads on the map image while driving (For example, change the color or increase the line width), or when the vehicle approaches a predetermined distance to the intersection where the course should be changed on the guidance route, the intersection on the map image By displaying a guide map (enlarged view of the intersection, an arrow indicating the direction of travel at the intersection, the distance to the intersection, the name of the intersection, etc.) In which direction to go The user is to be able to grasp.

  When searching for a route, the user sets a destination in advance, and sets a waypoint on the way to the destination as necessary. If necessary, various conditions (whether toll road priority or general road priority) are also set. In the navigation device, a plurality of routes to the destination are searched based on these set data, and the searched routes are displayed in different colors, for example, according to one route selected by the user. Give guidance.

  When route guidance is performed based on such a route guidance function, the route currently being guided may be changed or the destination may be changed. For example, an in-vehicle navigation device has a “neighboring facility search function” as a function that can be used when a user wants to drop in at a convenience store before going to a destination that is initially set. This peripheral facility search function searches for a facility in the genre of the facility that the user wants to search in advance, the name of the searched facility, the distance from the vehicle position to the facility, and the direction of the facility viewed from the vehicle position Etc. are displayed as a list on the screen.

  According to such a peripheral facility search function, the user can know the positional relationship between the own vehicle position and a facility of a specified genre existing in the vicinity thereof. In addition, by touching a desired facility on the screen (or selecting by remote control operation) as necessary, information on the facility can be obtained.

  As a technology related to this, in Patent Document 1, a required facility type is set from information on a plurality of facilities, and a predetermined range is set based on the position of the destination based on the set facility type. It is described that the information of the facility in is extracted.

JP 2001-356024 A

  In recent years, in order to deal with environmental problems, development of vehicles such as electric vehicles in consideration of the environment has been promoted. If all the vehicles do not emit harmful exhaust gas, it is not necessary to limit the driving of the vehicles from the viewpoint of environmental protection, but at present, such vehicles have not yet been widely spread.

  In such a situation, in order to reduce the influence on the human body due to harmful substances contained in exhaust gas, vehicles that can pass through a predetermined area are restricted. For example, in Germany, “environmental zone” regulations have been introduced with the aim of greatly reducing harmful substances emitted from vehicles. This “environmental zone” regulation displays either red, yellow, or green stickers on vehicles based on the amount of hazardous substance exhaust gas, and only vehicles with these stickers can pass through the “environment zone”. To do.

  At present, even when a facility in the “environment zone” is set as a destination, route search as described above is performed and route guidance to the facility is performed. Therefore, when the target facility exists in the “environment zone”, it is recognized that the vehicle cannot enter for the first time with a sign or the like indicating that the vehicle enters the “environment zone” while driving the vehicle according to the route guidance. For this reason, it is not only necessary to change the destination again, but it may be difficult to travel on which road, which may hinder safe driving.

  The present invention has been made in view of the problems of the related art, and is capable of easily grasping that a destination facility is a facility within a specific restricted area, and a facility search for surrounding facilities. An object is to provide a display method.

  In order to solve the above-described problems of the prior art, according to the basic form of the present invention, only display means, information input means for inputting information instructed by the user, and vehicles satisfying predetermined conditions can pass. Map data storage means storing map information including information on the restricted area indicating that, storage means storing passability information indicating whether the host vehicle is allowed to pass through the restricted area, the display means, An information input means, a map data storage means, and a control means for controlling the storage means, wherein the control means has a facility searched based on information acquired via the information input means within the restricted area. When the vehicle is a facility, whether the vehicle is a vehicle that can pass through the restricted area is determined based on the passability information. When it is determined that the vehicle is not allowed to pass, the facility is a facility within the restricted area. To be Vehicle navigation system and displaying on the screen of another possible with said display means.

  In the vehicle-mounted navigation device according to this aspect, when the control means determines that there is a facility within the restricted area within a predetermined range of the host vehicle as a result of the peripheral facility search, the display of the facility includes the inside of the restricted area. A display indicating that the facility is present may be added to the name of the facility, and the control unit may display a facility within the restricted area within a predetermined range of the host vehicle as a result of the surrounding facility search. When the determination is made, the display of the facility may be grayed out so that the facility cannot be selected, and the control means determines that the route search destination is a facility in the restricted area. When the determination is made, the route guidance to the facility is not displayed, but the facility is a facility in the restricted area and a display indicating that the vehicle cannot pass may be displayed. Lebe The control means may display that the facility is a facility in the restriction area of the restriction level according to the restriction level of the restriction area where the facility exists. .

  Further, in the in-vehicle navigation device according to this aspect, the control means may display a setting menu for inputting the passability information, and acquire the passability information according to the instructed level. The control means may acquire the passage permission information based on a passage permission sticker affixed to the vehicle, and the control means may acquire the passage permission information based on vehicle type information of the vehicle. Also good.

  According to another aspect of the present invention, there is provided map information including information input means for inputting information instructed by the user and information on a restricted area indicating that only a vehicle satisfying a predetermined condition can pass. A peripheral facility search and display method performed in a vehicle-mounted navigation device comprising: stored map data storage means; and storage means storing passability information indicating whether or not the host vehicle is allowed to pass through the restricted area. A step of searching for a facility based on information acquired via the information input means, a step of determining whether or not the facility is a facility within the restricted area, and the own vehicle can pass through the restricted area. And determining that the facility is a facility within the restricted area when it is determined that the host vehicle is not allowed to pass through the restricted area. Surrounding facilities search display wherein the Rukoto is provided.

  In the peripheral facility search and display method according to this aspect, the step of searching for the facility includes a step of searching for the facility within a predetermined range from the vehicle position, and whether or not the searched facility is a facility within the restricted area. And the step of displaying the facility so as to be identifiable is a step of adding a display indicating that the facility is in the restricted area to the name of the facility. The step of searching for the facility may include a step of searching for the facility within a predetermined range from the own vehicle position, and a step of determining whether or not the searched facility is a facility within the restricted area. And the step of displaying the facility in an identifiable manner may be a step of graying out the display of the facility, and the step of searching for the facility A route search as a place, and a step of determining whether the destination is a facility in the restricted area. In the step of displaying the facility in an identifiable manner, the facility is located in the restricted area. The facility may be a step of displaying that the vehicle cannot pass. When the restriction area is classified into a plurality of restriction levels, the step of displaying the facility in an identifiable manner includes: In accordance with the restriction level of the restriction area that exists, the facility may be a step of displaying that the facility is in the restriction area of the restriction level.

  Further, in the peripheral facility search and display method according to this aspect, before the step of searching for the facility, a step of displaying a setting menu for inputting passability information, and whether or not the passability according to the level based on the input information A step of acquiring information, and before the step of searching for the facility, a step of acquiring an image of a traffic permission sticker affixed to a vehicle and a type of the traffic permission sticker are determined. A step of acquiring passability information according to a level based on a type of the pass permission sticker, and acquiring vehicle type information of the vehicle before the step of searching for the facility You may make it have a step and the step which acquires the passability information according to a level based on the said vehicle type information.

  According to the vehicle-mounted navigation device and the surrounding facility search and display method of the present invention, information on whether or not the host vehicle is a vehicle that can pass through a restricted area such as an “environment zone” is acquired, and the inside of the restricted area is searched during the facility search. This facility is labeled as such. When a facility in the restricted area is selected as the destination, a message is displayed indicating that the facility is in the restricted area. As a result, it is possible to easily grasp whether or not the facility is in the restricted area when searching for the facility, and it is possible to prevent route guidance to the restricted area when the vehicle cannot travel in the restricted area. It becomes.

It is a block diagram which shows the structure of the vehicle-mounted navigation apparatus which concerns on one Embodiment of this invention. It is a figure which shows an example of the "environment zone" which is a control area. It is a flowchart which shows an example of the setting process of the control area passage permission information of a vehicle. It is an example of the setting menu of the information which shows whether the own vehicle can pass through a control area (the 1). It is a setting menu example (part 2) of information indicating whether or not the own vehicle can pass through the restricted area. It is a flowchart which shows an example of the display process of a facility search result. It is FIG. (1) which shows an example of the facility search result including the facility in a control area. It is FIG. (2) which shows an example of the facility search result including the facility in a control area. It is a flowchart which shows an example of the display process of a destination search result. It is an example of a display when a facility in a restricted area is designated as a destination.

  Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.

(Configuration of in-vehicle navigation system)
FIG. 1 is a block diagram showing a configuration of an in-vehicle navigation device 100 according to an embodiment of the present invention.

  In the figure, 1 is a DVD drive, and 1a is a storage medium in which map data and other guidance data are stored. In the present embodiment, the DVD-ROM 1a is used as a storage medium for storing such data, but a hard disk or other storage medium may be used. The map stored here is divided into longitude and latitude widths of appropriate sizes according to each scale level such as 1/1500, 1/25000, 1 / 50,000, 1/10000, etc. Roads, buildings, facilities, and other various properties included in are stored as a coordinate set of points (nodes) expressed in longitude and latitude. Map data includes (1) a road layer composed of road link data, intersection data, node data, etc., (2) a background layer for displaying roads, buildings, parks, rivers, etc. on a map image, and (3) a municipality. It consists of a character / symbol layer for displaying administrative division names such as names, road names, intersection names, characters, map symbols, and the like.

  In the road layer, the road link data supplies attribute information of each road. For each link constituting the road, the type of road (national road, highway, prefectural road, other road), hierarchization of the road network It consists of data such as the level, the number of nodes constituting the link, the road number (road name), and the width of the link connecting each node. The intersection data is a set of nodes closest to the intersection among the nodes on the link coupled to the intersection. The node data is a list of all nodes constituting the road, and includes position information for each node, information for identifying whether the node is an intersection or not, and the like.

  An operation unit 2 is provided with operation buttons and the like for operating the navigation apparatus body 10. In this embodiment, the operation unit 2 includes a remote control transmitter, and the user can also operate the navigation apparatus body 10 with the remote control transmitter at hand.

  Also, 3 receives GPS signals sent from a plurality of GPS satellites and generates and outputs GPS data such as longitude, latitude, PDOP (Position DOP) value and HDOP (Horizontal DOP) value of the current position of the vehicle. A GPS receiver is shown. Reference numeral 4 denotes a self-contained navigation sensor. The self-contained navigation sensor 4 is composed of an angle sensor such as a gyro that detects a vehicle rotation angle, and a travel distance sensor that generates a pulse at every constant travel distance.

  In addition, 5 is a communication device such as an in-vehicle telephone for communicating with various service centers, and 6 is a VICS reception for receiving VICS (registered trademark) (road traffic information communication system) information transmitted from a radio wave beacon or an optical beacon. Indicates the machine. These beacons are installed on the roadside and connected to police stations, road managers and integration centers to provide information on traffic jams in the vicinity.

  Reference numeral 7 denotes a display unit such as a liquid crystal panel. The navigation device body 10 displays a map around the current position of the vehicle on the display unit 7, a guidance route from the departure point to the destination, a vehicle mark, Other guidance information is displayed. The display unit 7 is provided with a touch panel on the screen, and is configured with various buttons paired with the display content of the display screen. The touch panel serves as an input device for selecting a menu or the like indicated by these various buttons. Reference numeral 8 denotes a speaker for providing guidance information to the user by voice.

  The navigation device body 10 is composed of the following. Reference numeral 11 denotes a buffer memory that temporarily stores map data read from the DVD-ROM 1a via the DVD drive 1.

  Reference numeral 12 denotes a control unit constituted by a microcomputer. The control unit 12 has a built-in navigation program, and calculates the current position of the vehicle based on a signal output from the GPS receiver 3 or a signal output from the self-contained navigation sensor 4 according to the program. Or the map data to be displayed is read from the DVD-ROM 1a to the buffer memory 11 via the DVD drive 1 or from the destination to the destination under the search conditions set using the map data read to the buffer memory 11. Various processes are executed, such as searching for a guide route up to. Also, as will be described later, when the found facility exists in a specific restricted area, a facility list that displays the result of the surrounding facility search is easily displayed so that the facility is located in the restricted area. It is formed and displayed in a form that can be grasped.

  13 is a map drawing unit for generating a map image using the map data read out to the buffer memory 11, and 14 is for generating various menu screens (operation screens) and various marks such as vehicle position marks and cursors according to the operation status. This is the operation screen / mark generator.

  Reference numeral 15 denotes a guide route storage unit that stores the guide route searched by the control unit 12, and 16 denotes a guide route drawing unit that draws the guide route. The guidance route storage unit 15 stores all the nodes of the guidance route searched by the control unit 12 from the departure point to the destination. When displaying the map, the guide route drawing unit 16 reads the guide route information from the guide route storage unit 15 and draws the guide route with a color and line width different from those of other roads.

  Reference numeral 17 denotes a storage unit composed of a memory such as an EEPROM connected to the control unit 12, and temporarily stores information on a specific restricted area and information on a facility searched by a peripheral facility search.

  An audio output unit 18 supplies an audio signal to the speaker 8 based on a signal from the control unit 12. Reference numeral 19 denotes an image composition unit, on which a map image drawn by the map drawing unit 13 is overlaid with various marks and operation screens generated by the operation screen / mark generation unit 14, a guidance route drawn by the guidance route drawing unit 16, and the like. And output to the display unit 7.

  Reference numeral 20 denotes a facility list drawing unit that performs drawing processing of the facility list generated by the control unit 12.

  In the in-vehicle navigation device 100 configured as described above, as a basic operation, the control unit 12 is based on the GPS signal received by the GPS receiver 3 and the signal input from the autonomous navigation sensor 4. Detect current position. Then, map data around the vehicle is read from the DVD-ROM 1 a via the DVD drive 1 and stored in the buffer memory 11. The map drawing unit 13 generates a map image based on the map data read to the buffer memory 11 and displays a map image around the host vehicle on the screen of the display unit 7 via the image composition unit 19.

  Moreover, the control part 12 detects the present position of the own vehicle based on each signal input from the GPS receiver 3 and the self-contained navigation sensor 4 with the movement of the own vehicle, and according to the detection result, the display part 7 The vehicle position mark is superimposed on the map image displayed on the screen, and the vehicle position mark is moved as the host vehicle moves, or the map image is scrolled.

  Further, when the user operates the operation unit 2 to set a destination and other necessary information (information about a waypoint on the way to the destination, etc.), the control unit 12 reads from the GPS receiver 3 and the autonomous navigation sensor 4. The current position of the vehicle detected based on each of the signals is used as a starting point, and a route with the lowest traffic cost from the starting point to the destination is searched using the map data of the DVD-ROM 1a. Then, the route obtained by the search is stored in the guidance route storage unit 15 as a guidance route, and the guidance route is superimposed on the map image on the screen on the display unit 7 via the guidance route drawing unit 16 and the image composition unit 19. Display together. At this time, the guidance route is displayed in a display mode different from other roads (for example, the line width is increased or the color is displayed in a conspicuous color) so that the user can easily identify the route. Thus, the control unit 12 appropriately outputs guidance information as the host vehicle travels, and guides the host vehicle to travel along the guidance route to the destination.

  The surrounding facility search process in the vehicle-mounted navigation device 100 configured as described above will be described with reference to FIGS. First, a restriction area such as an “environment zone” will be described with reference to FIG. Next, the setting of an index as to whether or not the own vehicle is a vehicle permitted to pass in the restricted area will be described with reference to FIGS. Next, processing when the instructed facility exists in a restricted area such as an “environment zone” will be described with reference to FIGS. 6 to 10.

  FIG. 2 shows an example of a restricted area 22 designated as an “environment zone” in a German city 21. In the “environment zone”, vehicles that can pass through the area 22 are regulated according to the exhaust gas standard. By satisfying the exhaust gas standard, a passage permission sticker indicating that the vehicle can pass through the environmental zone is attached to the vehicle. For example, vehicles registered before January 1, 1997 do not have a permission sticker and cannot travel in the environmental zone. Vehicles registered during the period from January 1, 1997 to December 31, 2000 are attached with a red permission sticker, and vehicles registered during the period from January 1, 2001 to December 31, 2005 are registered. A yellow permit sticker is affixed to vehicles registered on or after January 1, 2006, and a green permit sticker is affixed. FIG. 2B shows an example of a red traffic permission sticker 23, a yellow traffic permission sticker 24, and a green traffic permission sticker 25.

  Each of the passage permission stickers in FIG. 2B is displayed with diagonal lines or horizontal lines, but actually, it is displayed with a corresponding color.

  FIG. 2 (c) and FIG. 2 (d) show environmental zone indicators. The driver is alerted by a sign 26 indicating the environmental zone and a sign (27a, 27b) indicating a vehicle capable of traveling in the environmental zone. FIG. 2 (c) shows that the area 22 of FIG. 2 (a) is an environmental zone, and shows that a vehicle with a red, yellow, and green passage permission sticker can travel to the environmental zone. FIG. 2D shows that the region 22 in FIG. 2A is an environmental zone, and only the vehicle with the green passage permission sticker can travel to the environmental zone.

  The “environment zone” is also referred to as a “restricted area”. Further, it is assumed that the restricted area is classified into a plurality of levels according to the exhaust gas standard or the like. For example, the area where a vehicle with a red traffic permission sticker is allowed to pass is a restriction level 2 area, and the area where a vehicle with a yellow traffic permission sticker is allowed to pass is a restriction level 3 area. The area where the vehicle with the sticker is allowed to pass is the area of restriction level 4.

  FIG. 3 is a flowchart illustrating an example of a setting process of the restricted area passage permission information of the vehicle. This setting process is performed before the facility search process described later.

  First, in step S11, the control unit 12 acquires information about whether or not the host vehicle can pass through the restricted area. This information is set based on information input from the information setting menu. FIG. 4 shows an example of the information setting menu.

  When the “Setting” button 42 is selected in the information setting menu 41 in FIG. 4A, a setting menu 43 in FIG. 4B is displayed. When the “Other” button 44 is selected in the setting menu 43 and the “Umwelt Zone” (environmental zone) button 45 is selected, the passage permission sticker mark selection screen 46 shown in FIG. 4C is displayed. On the passage permission sticker mark selection screen 46, three kinds of passage permission sticker marks are displayed. Among these passage permission sticker marks, the passage permission sticker attached to the own vehicle is selected.

  FIG. 5 shows another example of setting information as to whether or not the restricted area can be passed. When the “Setting” button 42 of the information setting menu 41 in FIG. 5A is selected, a setting menu 43 in FIG. 5B is displayed. When the “Other” button 44 is selected in the setting menu 43 and the “Vehicle” button 51 is selected, the dealer, vehicle name, and model selection screens are displayed as shown in FIGS. 5C to 5E. Is displayed. By selecting each item, the confirmation screen shown in FIG. 5 (f) is displayed, which indicates which restriction level area the host vehicle can pass through. Confirm that a traffic permit sticker that conforms to the environment (regulation) level is attached to the vehicle, and then select the “YES” button.

  For information on whether or not the restricted area can be passed, a camera capable of capturing the vehicle is provided, and an image obtained by capturing the vehicle with the camera is analyzed to detect whether or not a passage permission sticker is attached. You may make it acquire by.

  In step S <b> 12 of FIG. 3, the control unit 12 determines whether or not the host vehicle can pass through the restricted area. When the environmental zone mark is selected by the series of operations shown in FIG. 4 in step S11, or when it is confirmed by the series of operations shown in FIG. Is determined that the vehicle can pass through the restricted area. On the other hand, when the environmental zone mark is not selected, or when “NO” is selected in FIG. 5F, it is determined that the host vehicle cannot pass through the restricted area. When it is possible to pass the restricted area, the process proceeds to step S13, and when it is impossible to pass, the process proceeds to step S14.

  In the next step S <b> 13, the control unit 12 sets the information on the passage permission sticker selected in step S <b> 11 as the restriction area passage permission index and stores it in the storage unit 17. In this setting, a value corresponding to the type of the selected passage permission sticker (exhaust gas regulation level) is set. For example, the level (for example, level 2 for red, level 3 for yellow, and level 4 for green) corresponding to the selected road-permitted sticker among the traffic-permitted stickers in FIG. 4C is set. . The registered level is also called the environment (regulation) correspondence level of the host vehicle.

  On the other hand, in step S14, since the host vehicle cannot pass through the restricted area, “impossible” is set in the restricted area passability indicator.

  The restriction level of the host vehicle is set by the series of operations described above.

  Next, the display processing of the result of the facility search will be described with reference to FIGS. FIG. 6 is a flowchart illustrating an example of facility search result display processing performed by the control unit 12, and FIGS. 7 and 8 are diagrams illustrating an example of a list display of facility search results. It is assumed that the level corresponding to the regulation of the host vehicle is registered at level 3 by performing the processing shown in FIG. That is, it is assumed that the vehicle can travel within the restriction areas of restriction levels 2 and 3 among restriction levels 2 to 4.

  In step S21 of FIG. 6, the facility search condition is acquired. The facility search condition is to specify the distance of how many kilometers around the host vehicle to search the facility, or to specify the genre of the facility to be searched. A facility search menu (not shown) is displayed, The conditions are acquired by user selection.

  In the next step S22, the facility search is performed in accordance with the facility search condition acquired in step S21. In the facility search, the control unit 12 refers to the map data read out to the buffer memory 11, and whether or not there is a facility that meets the search condition, such as a facility of a specified genre, in the data related to the facility in the specified range of the map. Do this by detecting.

  In the next step S23, it is determined whether or not there is a facility in the restricted area in the facility of the search result. For the facility extracted in step S22, the position data is referenced to determine whether the facility is located within the restricted area. If there is a facility in the restricted area, the process proceeds to step S24. If there is no facility in the restricted area, the process proceeds to step S25.

  In the next step S24, as a result of the facility search, there is a facility in the restricted area. Therefore, a facility list is created in a display form in which the facility in the restricted area can be distinguished from the facility outside the restricted area. The search result is displayed based on the created facility list.

  FIG. 7 shows an example of the facility search result. In the facility search result screen 71a of FIG. 7A, the facilities 73a to 73c are displayed as a list, and the facility 73a is selected. Detailed information of the facility 73a is displayed in the information display area 75.

  In the example of FIG. 7A, among the facilities 73a to 73c, an “environment zone mark” 74 indicating that the facility 73a is a facility in the restricted area is added to the name of the facility and displayed on the right side. Yes.

  FIG. 7B shows another display example indicating that the facility is within the restricted area. In the facility search result screen 72a of FIG. 7B, the facilities 76a to 76d are displayed as a list. Of these, the facility 76a and the facility 76b are facilities within the restricted area, and are grayed out so as to be distinguished from other facilities and cannot be selected.

  FIG. 8 shows an example of the facility list display according to the regulation level. In the facility search result screen 71b of FIG. 8A, the facilities 81a to 81c are displayed as a list, and the facility 81a is selected. Detailed information of the facility 81a is displayed in the information display area 82.

  In the example of FIG. 8A, among the facilities 81a to 81c, the facility 81a and the facility 81c are facilities within the restricted area. Among these, the “environment zone mark” 83 indicating that the facility 81a is a facility in the restriction level 2 region is added to the name of the facility and displayed on the right side, and the facility 81c is a facility in the restriction level 4 region. An “environmental zone mark” 84 indicating the presence is added to the name of the facility and displayed on the right side.

  Further, in the facility search result screen 72b of FIG. 8B, the facilities 85a to 85d are displayed as a list, and the facilities 85a and 85b are grayed out. Since the facility 85a and the facility 85b are in the restricted area and are in the restricted level 4 area, the own vehicle having an environmental response level of 3 cannot pass through the area, so these facilities cannot be selected. Is displayed.

  In addition, since the facility 85c is a facility in the restricted area and is a facility in the restricted level 3, and the facility 85d is a facility in the restricted area and in the restricted level 2, the Since vehicles can pass through the area where these facilities are located, they are displayed so as to be selectable. In FIG. 8B, the facility name column of the facility 85c is displayed in yellow (indicated by reverse diagonal lines in FIG. 8B) corresponding to the regulation level 3, and the facility name column of the facility 85d is regulated. Displayed in red corresponding to level 2 (indicated by hatching in FIG. 8B).

  On the other hand, in step S25, since there is no facility in the restricted area, a list is created in the same manner as the normal facility list, and the search result is displayed based on the facility list created in step S26.

  Next, referring to FIGS. 9 and 10, display processing when a facility in a restricted area is set as a destination after facility search will be described.

  FIG. 9 is a flowchart illustrating an example of a destination search result display process performed by the control unit 12, and FIG. 10 illustrates an example of a display screen corresponding to the process.

  First, in step S31, a facility search condition is acquired. The facility search condition is to specify the distance of how many kilometers around the host vehicle to search the facility, or to specify the genre of the facility to be searched. A facility search menu (not shown) is displayed, The conditions are acquired by user selection.

  In the next step S32, the facility search is performed with the search conditions acquired in step S31. In the facility search, the control unit 12 refers to the map data read to the buffer memory 11, and whether or not there is a facility that meets the search condition such as the facility of the specified genre in the data related to the facility in the map in the specified range. By detecting.

  In the next step S33, the search results are displayed as a list.

  In the next step S34, it is determined whether or not the facility has been selected as the destination. The process waits until it is selected as the destination. If it is selected as the destination, the process proceeds to step S35.

  FIG. 10 is a diagram illustrating an example of display processing of a destination search result when a desired facility list is selected as a destination from among the facility lists displayed as a result of the facility search. FIG. 10A shows a facility search result screen 91 on which a facility list is displayed. On this screen, a list of facilities 94a to 94d is displayed, and a state in which the facility 94a is selected is shown. Detailed information of the selected facility 94 a is displayed in the information display area 95.

  FIG. 10B is a route search screen displayed after the facility 94a in the facility list of FIG. 10A is selected. By selecting an “OK” button 97 on this screen, a route search is started.

  In the next step S35, it is determined whether or not the destination is a facility in the restricted area. For the facility extracted in step S34, the position data is referred to and it is determined whether or not the facility is located within the restricted area. If the destination is within the restricted area, the process proceeds to step S36, and if the destination is not within the restricted area, the process proceeds to step S38.

  In the next step S36, it is determined whether or not the host vehicle is a vehicle that can travel in the restricted area. If the vehicle can travel in the restricted area, the process proceeds to step S38. If the vehicle cannot travel in the restricted area, the process proceeds to step S37.

  Unless the permission sticker is attached to the vehicle, the vehicle cannot travel in the restricted area. Moreover, when the permission sticker is affixed, it is determined whether or not the vehicle can run according to the regulation response level and the environment zone level.

  In the next step S37, a message indicating that the facility selected as the destination is a facility in the restricted area is displayed.

  FIG. 10C is a screen showing the result of route search. In this example, a message 98 indicating that the facility 94a is a facility in the restricted area and that the own vehicle is not a vehicle that can pass in the restricted area is displayed.

  As shown in FIG. 10D, when a facility 94a is selected, an environmental zone mark 99 indicating that the facility 94a is a facility in the restricted area is displayed in the information display area 96 of the route search screen 92b. You may make it display.

  On the other hand, if the destination is not a facility in the restricted area, or if the host vehicle is a vehicle that can travel in the restricted area, in step S38, a guidance route is searched using the selected facility as the destination, Execute guidance.

  As described above, according to the vehicle-mounted navigation device and the surrounding facility search display method, information on whether or not the own vehicle is a vehicle that can pass through a restricted area such as an “environment zone” is acquired, and the facility search is performed. An indication to that effect is added to the facility within the restricted area. When a facility in the restricted area is selected as the destination, a message is displayed indicating that the facility is in the restricted area. As a result, it is possible to easily grasp whether or not the facility is in the restricted area when searching for the facility, and it is possible to prevent route guidance to the restricted area when the vehicle cannot travel in the restricted area. It becomes.

100: In-vehicle navigation device,
1a ... DVD-ROM,
2 ... operation part,
3 ... GPS receiver,
4 ... Self-contained navigation sensor,
7 ... display part,
10 ... navigation device body,
11: Buffer memory,
12 ... control unit,
15 ... guide route storage unit,
16 ... guide route drawing unit,
17 ... storage part,
20 ... Facility list drawing section,
26, 27 ... environmental zone sign,
71, 72 ... Facility search result screen,
74, 83, 83, 99 ... Environmental zone mark.

Claims (18)

Display means;
Information input means for inputting information instructed by the user;
Map data storage means in which map information including information on a restricted area indicating that only a vehicle satisfying a predetermined condition is allowed to pass;
Storage means for storing passability information indicating whether the host vehicle is allowed to pass through the restricted area;
The display means, information input means, map data storage means, and control means for controlling the storage means,
When the facility searched based on the information acquired via the information input unit is a facility in the restricted area, the control means determines whether the own vehicle is a vehicle that can pass through the restricted area. In-vehicle navigation, characterized in that, when it is determined based on availability information and is determined to be an impassable vehicle, the facility is displayed on the screen of the display means so as to be identifiable as a facility within the restricted area. apparatus.   When it is determined that there is a facility in the restricted area within a predetermined range of the host vehicle as a result of the peripheral facility search, the control means displays a display indicating that the facility is in the restricted area on the display of the facility. The in-vehicle navigation device according to claim 1, wherein the in-vehicle navigation device is displayed by being added to a name.   When the control means determines that there is a facility in the restricted area within a predetermined range of the host vehicle as a result of the surrounding facility search, the display of the facility is grayed out so that the facility cannot be selected. The in-vehicle navigation device according to claim 2, wherein:   When the control means determines that the destination of the route search is a facility in the restricted area, the control means does not display route guidance to the facility, the facility is a facility in the restricted area, and the vehicle The in-vehicle navigation device according to claim 1, wherein a display indicating that the vehicle cannot pass is displayed. When the restriction area is classified into a plurality of restriction levels,
The said control means displays according to the regulation level of the said regulation area where the said facility exists that the said facility is a facility in the regulation area of the said regulation level, The claim 2 or Claim characterized by the above-mentioned. 4. A vehicle-mounted navigation device according to 4.   The in-vehicle navigation device according to claim 1, wherein the control means displays a setting menu for inputting the passability information, and acquires the passability information according to the instructed level.   The in-vehicle navigation device according to claim 6, wherein the control means acquires the passage permission information based on a passage permission sticker attached to a vehicle.   The in-vehicle navigation device according to claim 7, wherein the control means acquires the passability information based on vehicle type information of a vehicle.   The in-vehicle navigation device according to claim 1, wherein the restricted area is an environmental zone in which a vehicle that satisfies a predetermined exhaust gas standard can pass. An information input means for inputting information instructed by the user, a map data storage means for storing map information including information on a restricted area indicating that only vehicles satisfying a predetermined condition can pass, and the own vehicle A storage facility that stores whether or not the passability information indicating whether or not the restricted area can be passed, and a peripheral facility search and display method that is performed in an in-vehicle navigation device,
Searching for facilities based on information acquired via the information input means;
Determining whether the facility is a facility within the restricted area;
Determining whether the host vehicle can pass through the restricted area;
When it is determined that the host vehicle is not allowed to pass through the restricted area, the facility is displayed so as to be identifiable that the facility is located in the restricted area;
A peripheral facility search and display method characterized by comprising: The step of searching for the facility includes:
Searching for the facility within a predetermined range from the vehicle position;
Determining whether the found facility is a facility within the restricted area; and
Have
The step of displaying the facility in an identifiable manner is a step of adding a display indicating that the facility is in a restricted area to the display of the facility and displaying the facility name. Search and display method for nearby facilities. The step of searching for the facility includes:
Searching for the facility within a predetermined range from the vehicle position;
Determining whether the found facility is a facility within the restricted area; and
Have
The peripheral facility search and display method according to claim 10, wherein the step of displaying the facility in an identifiable manner is a step of displaying the facility in a grayout manner. The step of searching for the facility includes:
A route search using the facility as a destination;
Determining whether the destination is a facility within the restricted area;
Have
11. The peripheral facility search and display method according to claim 10, wherein the step of displaying the facility in an identifiable manner is a step of displaying that the facility is a facility in a restricted area and the vehicle cannot pass. . When the restriction area is classified into a plurality of restriction levels,
The step of displaying the facility in an identifiable manner is a step of displaying that the facility is a facility in the regulation area of the regulation level according to the regulation level of the regulation area where the facility exists. The peripheral facility search display method according to claim 10, wherein Before the step of searching for the facility,
A step for displaying a setting menu for inputting passability information;
Acquiring passability information according to the level based on the input information;
The peripheral facility search and display method according to claim 10, further comprising: Before the step of searching for the facility,
Obtaining an image of a traffic permission sticker affixed to the vehicle;
Determining the type of the permission sticker;
Obtaining passage permission information according to the level based on the type of the passage permission sticker;
The peripheral facility search and display method according to claim 10, further comprising: Before the step of searching for the facility,
Obtaining vehicle type information of the vehicle;
Obtaining passability information according to the level based on the vehicle type information;
The peripheral facility search and display method according to claim 10, further comprising:   The peripheral facility search and display method according to claim 10, wherein the restricted area is an environmental zone in which a vehicle satisfying a predetermined exhaust gas standard can pass.

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