JP2005249539A - Route information system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To perform route information adequately to a parking lot even if vehicle train of park waiting is generated because of the parking lot of a facility is full of vehicles. <P>SOLUTION: When the park waiting vehicle train happens at the parking lot relating to the facility, the last vehicle specification part 110 receives the last vehicle information from the center system 113 and specifies its position, the route search part 107 route searches the last vehicle position as a land mark. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a route guidance device and a navigation device for guiding a travel route from a departure point to a destination.

  Conventionally, this type of route guidance device is incorporated in a navigation device, detects the current position by current position detection means such as a GPS receiver, and stores map data corresponding to the current position in a recording medium such as a DVD-ROM. Alternatively, the information is acquired through the network and displayed on the liquid crystal display, and the route search means searches for the guidance route to the destination set by the user and displays it on the map displayed on the liquid crystal display, thereby displaying the user. It guides you to your destination. And while driving along the guide route, when you approach a branching point such as an intersection or interchange, an enlarged view or a three-dimensional view is displayed, and the guidance of the direction of travel, the distance to the arrival point, the expected arrival time, etc. Guided.

As one route search technique, a technique for searching for a parking lot and searching for a route using the parking lot as a destination is known (see, for example, Patent Document 1). This is because the relationship between facilities such as department stores and amusement parks and the parking lots that are operated or affiliated with the facilities is stored in the map data, and the parking lot mark is displayed on the map around the facility designated by the facility search. It is to be displayed. When displaying this parking lot mark, the congestion level information of the parking lot is obtained from an external VICS or the like, and the degree of congestion is displayed in different colors.
JP-A-10-89989, page 6, second embodiment

  However, in the above-described conventional route guidance device, even if the degree of congestion of the parking lot can be recognized, even if the parking lot is full, it is necessary to wait even if in a queue if you want to go. The conventional route guidance to the parking lot is only the route guidance to the parking lot entrance, and when the parking lot is full and the waiting queue for parking reaches several tens to several hundred meters, the end of the lane I didn't know where the tail was, and I had to go around it to find it.

  The present invention solves such a conventional problem, and even when the parking lot is full and there is a waiting queue for parking, a route guidance device and a navigation device that can properly provide route guidance to the parking lot The purpose is to provide.

  In order to achieve the above object, a route guidance device according to the present invention includes map data acquisition means for acquiring map data including information on a parking lot associated with a facility, and a parking lot associated with the facility from the acquired map data. A parking lot search means for searching for a vehicle, a vehicle train tail specifying means for specifying the rearmost position of the vehicle train when there is a vehicle waiting for parking in the parking lot, And a route search means for searching for a route with the position as a target point. With this configuration, even when the parking lot is full and waiting for parking, appropriate route guidance can be performed using the position at the tail of the vehicle instead of the parking lot entrance as a target point.

  Moreover, the route guidance apparatus of the present invention is characterized in that the vehicle train tail specifying means acquires position information on the tail of the vehicle train from an external device. With this configuration, even if the host vehicle is at a position away from the target parking lot, it is possible to know the last position of the parking queue.

  In the route guidance device of the present invention, the external device is a center device connected to the route guidance device via a communication means. With this configuration, it is possible to easily obtain the tail information of the parking waiting train from the center device that many vehicles use and register.

  Moreover, the route guidance apparatus of the present invention is characterized in that the center device collects current position information of the own vehicle from a plurality of vehicles, and determines the parking queue and the last position. With this configuration, the number of vehicles equipped with current position detection means such as GPS receivers is increasing due to the widespread use of navigation devices. Therefore, by receiving vehicle information and current position information from each vehicle at the central device, The vehicle train and its tail can be determined.

  In the route guidance device of the present invention, the center device plots the current position collected from each vehicle on a map on which a parking lot is displayed, and on the basis of the plotted points, the train and its rearmost The position is determined. According to this configuration, the waiting vehicle queue extending from the entrance of the parking lot and the tail end thereof are determined from the vehicle information collected from each vehicle, the position information, and the amount of movement per unit time (vehicle speed or stop time). be able to.

  In the route guidance device of the present invention, the center device receives the tail information of the vehicle train from a terminal device carried by a guidance staff that guides the driver waiting for parking to the driver at the tail of the vehicle train. Features. With this configuration, the tail information of the vehicle train can be easily acquired.

  Further, in the route guidance device of the present invention, the vehicle train tail specifying means confirms the change in the position of the tail at regular intervals, and when the position of the tail changes, the route search means The guide route is searched for using the changed position of the last position as a new target point. With this configuration, it is possible to check the last position of the parking queue at fixed time intervals, and when the position changes, the new last position can be changed to the target point and the route can be searched again.

  In addition, the route guidance device of the present invention is characterized in that, when the route is searched again after changing the position of the tail, the driver is notified by voice that the route has been searched again. With this configuration, a new route up to the end of the parking queue can be confirmed by voice or text.

  In addition, the route guidance device of the present invention displays a waiting time from the last position until reaching the parking lot entrance. With this configuration, the user can determine whether to enter the parking queue waiting for parking based on the waiting time.

  In addition, the route guidance device of the present invention can switch between two modes of traffic jam consideration guidance and normal route guidance in consideration of the parked waiting train, and automatically switches to the traffic jam consideration guidance on Saturdays, Sundays and holidays. It is characterized by switching to. With this configuration, it is possible to perform a route search in consideration of parking queues on Saturdays, Sundays, and public holidays when traffic congestion is expected from the reception time from the GPS satellite or the internal clock.

  In addition, the present invention is a navigation device including the above-described route guidance device, and a vehicle including the above-described route guidance device or navigation device, and can improve the convenience of the navigation device and the vehicle.

  In the present invention, when there is a queue waiting for parking in the parking lot, the position of the tail end is specified, and the route search is performed using the position of the tail end as a target point. Even if there is a train line, there is an effect that it is possible to perform appropriate route guidance with the end point of the waiting queue for parking instead of the entrance of the parking lot as a target point, and an excellent route guidance device is provided can do.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 shows a schematic configuration of an in-vehicle navigation device provided with a route guidance device according to an embodiment of the present invention. In FIG. 1, a map data acquisition unit 101 is a drive device that reads map data from a storage medium such as a CD-ROM or a DVD-ROM. Instead of the map data acquisition unit 101, the communication unit 111 may download map data from the external center device 113 or server via the network 112. The current position detection unit 102 is software that detects the current position of the vehicle based on signals from a vehicle speed sensor, a direction sensor, and a GPS receiver. The liquid crystal display unit 103 displays map data corresponding to the detected current position together with the current position of the vehicle. This may be a display device such as an organic EL panel. The operation input unit 104 is a touch panel or a remote controller for inputting and setting a destination and various commands. The control unit 106 is a CPU that controls the entire apparatus. The storage unit 105 stores map data and work data, and a hard disk, ROM, RAM, flash memory, memory card, or the like is used as appropriate. The route search unit 107 searches for a guide route from the departure point to the destination. The facility search unit 108 searches for facility information from map data. The parking lot search unit 109 searches the parking lot information associated with the facility information based on the searched facility information, and determines whether or not the desired parking lot can be parked. The vehicle rear tail specifying unit 110 specifies the rearmost position of the vehicle train when there is a vehicle waiting to park in the parking lot. The route search unit 107, the facility search unit 108, the parking lot search unit 109, and the vehicle train tail identification unit 110 are realized by software controlled by the control unit 106, and are divided into four for convenience. One program may be sufficient. The communication unit 111 is connected to an external center device 113 through the network 112, and sends vehicle information and current position information of the host vehicle to the center device 113, and receives waiting train information from the center device 113. To do. The network 112 is a wireless or wired dedicated line or a general telephone line. The center device 113 collects survey information and provides service information for the contracted registered vehicle.

  With the spread of navigation devices, the number of vehicles equipped with current position detection means such as GPS receivers has increased, so an information communication system for transmitting vehicle information and current position information from each vehicle to the center device has been completed. By transmitting such vehicle information and current position information to the center device, it is possible to manage the operation of each vehicle, and to respond quickly when an emergency occurs. Thus, by using such an information communication system, vehicle information and current position information are collected from each vehicle, so that the end of the parking queue can be determined. The center device 113 plots the current position collected from each vehicle on the map on which the parking lot is displayed, and based on the plotted points, the entrance of the parking lot is determined from the vehicle information, the position information, and the moving speed or the stop time. Determine the parking queue that extends from the vehicle and the tail. The simplest method is to obtain the tail information from the vehicle at the tail of the parking queue. Alternatively, when there is a guide clerk who guides the driver at the end of the train to the parking waiting driver, the terminal position information carried by the guide clerk is transmitted to the center device 113. You may do it.

  FIG. 2 shows route guidance processing in the present embodiment. In FIG. 2, first, in step S101, the facility that the user wants to go to is searched, and a map centering on the facility is displayed. The facility search unit 108 is activated by selecting “Search” from the menu screen of the liquid crystal display unit 103, and a plurality of search methods are displayed on the display screen. For example, when “genre search” is selected and “shopping” is selected, a list of department stores is displayed. By selecting “XX department store” from among them, a map is displayed centering on “XX department store”. Next, in step S102, from the map data acquired by the map data acquisition unit 101, the facility search unit 108 reads out data related to “XX department store”, and checks whether there is a dedicated parking lot or a partner parking lot from the data. If not, the process proceeds to a normal parking lot search process in step S109. If there is, the “parking lot” button is displayed on the screen of the liquid crystal display unit 103. Next, in step S103, when the user presses the “parking lot” button, the parking lot search unit 109 is activated, and the parking lot search unit 109 extracts a dedicated parking lot or a partner parking lot of “XX department store”. Here, it is assumed that the parking lot is in the same building of “XX Department Store”. Next, in step S104, when the user presses the “set” button in order to set the parking lot as a destination or waypoint (hereinafter referred to as a target point), a route search process is started. In the route search process, first, in step S105, the vehicle train tail specifying unit 111 checks whether the parking waiting vehicle train information received from the center device 113 by the communication unit 111 is stored in the storage unit 105. In S106, the parking queue information is read out to identify the last position of the parking queue, and in step S107, the route search unit 107 uses the current position of the vehicle as the departure place, The guide route is searched using the tail as the target point. If there is no parking queue information in step S105, route search is performed using the parking lot entrance of the XX department store as a target point in step S107. In step S <b> 108, the searched guidance route is displayed on the map displayed on the liquid crystal display unit 103. When the route search process is started in step 104, the communication unit 111 inquires of the center device 113 about the end information of the waiting queue for parking in step S105. If there is, the end information is sent from the center device 113 in step S106. May be obtained and set.

  FIG. 3 shows a display example of the display screen 200 in the present embodiment. ○○ If there is no parking queue in the parking lot P of the department store, the normal route R1 to the entrance of the parking lot P is displayed as a guide route, but if there is a parking queue VL, the parking lot A detour route R2 to the last L of the parking waiting train VL is displayed after passing through the entrance. Further, when the other route R3 or R4 is more advantageous in terms of cost, the route is displayed.

  The route search is a simulation calculation using a horizontal search method or Dijkstra method as in the past, and a line connecting a certain intersection with an adjacent intersection is used as a link, and an intersection connecting two or more links is determined. It is defined as a node, and costs are assigned to all links, and a route with the minimum total cost from the starting point to the destination is calculated and used as a guide route. The cost is quantified by adding conditions such as road width, road type (whether ordinary road or highway), right turn, left turn, etc., based on distance. When the passing road is set on the way along the route, the cost is the sum of the cost from the starting point to the road set as the passing road, the cost of the passing road, and the cost from the passing road to the destination. Further, it is possible to acquire road traffic jam information from VICS and add it to cost calculation.

  The vehicle train tail identification unit 110 monitors the change in the position of the tail at regular intervals while the route guidance is being executed. This is to check whether new tail information from the center device 113 is stored in the storage unit 111 at regular intervals, or whether the tail information is updated to the center device 113 at regular intervals. Inquire. When the last position changes, the route search unit 107 re-searches the guidance route using the changed last position as a new target point. When the route is re-searched, this is notified to the driver by voice from the speaker.

  Further, every time the tail position identifying unit 110 identifies the tail position, it calculates the waiting time until it reaches the parking lot entrance from the current tail position, and displays it on the liquid crystal display unit 103, or The driver is notified by voice from the speaker. Alternatively, when the center device 113 transmits the tail information, the information is transmitted with a waiting time, and the control unit 106 displays the information on the screen of the liquid crystal display unit 103 or notifies the speaker by voice.

  Thus, according to this embodiment, when there is a parking queue in the parking lot associated with the facility, the tail information of the parking queue is obtained from the center device, and the position of the tail Since the route search is performed with the target point as the target point, even if the parking lot is full and there are queues waiting for parking, appropriate route guidance should be performed with the position at the end of the train row instead of the parking lot entrance as the target point Can do.

  In this embodiment, it is possible to switch between two modes of traffic jam consideration guidance and normal route guidance in consideration of the waiting queue for parking as described above, and the traffic jam guidance guidance is automatically selected on Saturdays, Sundays and public holidays. You may make it switch to. This is done by acquiring date and time information from GPS satellites or internal clocks, and performing a route search in consideration of parking queues on Saturdays, Sundays, and holidays where traffic congestion is expected, and searching on other days Processing can be performed quickly.

  Further, by providing the vehicle with the above-described navigation device, a user who drives the vehicle can acquire a useful and practical guide route to the target point, and can enjoy a comfortable drive.

  As described above, the route guidance device according to the present invention sets the target point at the end of the waiting queue for parking, not the entrance of the parking lot, even if the parking lot is full and waiting for parking. It has the effect of providing appropriate route guidance and is useful as a route guidance device that guides the travel route from the departure point to the destination. It is not only a vehicle-mounted navigation device, but also a portable navigation device and a drive-in device. Alternatively, the present invention can be applied to a stationary navigation apparatus installed in a service area or the like.

Schematic block diagram of a navigation device in an embodiment of the present invention Flow chart of route guidance processing in the embodiment of the present invention The display screen figure which shows the example of a display in embodiment of this invention

Explanation of symbols

DESCRIPTION OF SYMBOLS 101 Map data acquisition part 102 Present position detection part 103 Liquid crystal display part 104 Operation input part 105 Memory | storage part 106 Control part 107 Path | route search part 108 Facility search part 109 Parking lot search part 110 Vehicle rear end identification part 111 Communication part 112 Network 113 Center Device 200 display screen

Claims (12)

  Map data acquisition means for acquiring map data including information on a parking lot associated with a facility, parking lot search means for searching for a parking lot associated with the facility from the acquired map data, and waiting for parking in the parking lot When there is a vehicle train, the vehicle train tail specifying means for specifying the rearmost position of the vehicle train, and the route search means for searching for a route with the rearmost position of the waiting queue for parking as a target point are provided. Route guidance device.   The route guidance device according to claim 1, wherein the vehicle train tail specifying means acquires position information of the tail of the vehicle train from an external device.   The route guidance device according to claim 2, wherein the external device is a center device connected to the route guidance device via a communication unit.   The route guidance device according to claim 3, wherein the center device collects current position information of the host vehicle from a plurality of vehicles, and determines the parking queue and the position of the tail end thereof.   The center device plots the current position collected from each vehicle on a map on which a parking lot is displayed, and determines the position of the train and the rearmost position based on the plotted points. Item 5. The route guidance device according to Item 4.   4. The route according to claim 3, wherein the center device receives the tail information of the vehicle train from a terminal device carried by a guidance person who guides a driver waiting for parking to the driver at the back of the vehicle train. Guide device.   The vehicle train tail specifying means confirms the change in the position of the last tail at regular intervals, and when the position of the last tail changes, the route search means newly sets the changed position of the last tail. The route guidance device according to any one of claims 1 to 6, wherein a guidance route is searched for as a target point.   8. The route guidance device according to claim 7, wherein when the route is searched again after changing the position of the last position, the driver is notified by voice that the route has been searched again.   The route guidance device according to any one of claims 1 to 8, wherein a waiting time from the last position to the parking lot entrance is displayed.   2. The traffic congestion consideration guidance and the normal route guidance considering the parking queue are provided so as to be switchable, and the traffic congestion guidance is automatically switched on Saturday, Sunday and public holidays. The route guidance device according to any one of claims 9 to 9.   A navigation device comprising the route guidance device according to any one of claims 1 to 10.   A vehicle comprising the route guidance device according to any one of claims 1 to 10 or the navigation device according to claim 11.

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