JP2006106442A - Navigation apparatus and method for displaying information - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a navigation apparatus and an information displaying method in which convenience can be improved by cooperating map data with information acquired from a network. <P>SOLUTION: When facilities displayed on a map for navigation are selected, a control part 25 accesses a network 51 by controlling a radio communication part 35 and acquires information concerned with the facilities from a server apparatus 50. The acquired information is displayed on a display 40. Since the information concerned with the selected facilities is acquired and displayed on the display 40, map information can be cooperated with information on the network and convenience can be improved. Since a user can simply acquire the information concerned with the facilities displayed on the map while operating the navigation apparatus, operability is improved. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a navigation device that displays a guidance route to a destination. In particular, the present invention relates to a navigation apparatus and an information display method that provide information using the Internet or the like.

  In recent years, a map display of a navigation apparatus has been made a real 3D display close to a real scene by increasing the capacity of hardware. The user can grasp the surrounding situation on the navigation screen displayed in 3D, and can easily grasp the guidance route to the destination.

  On this navigation screen, for example, if one facility shown in FIG. 1 is selected and the map is enlarged while the cursor is placed on this facility, the image in the facility is not prepared in the navigation device. Is not displayed, or walls and ground are displayed as shown in FIG. 1, and there is room for improvement.

  Patent Document 1 proposes a navigation device that searches and displays the nearest facility from the current position information using the Internet or the like.

JP 2003-227723 A

  It is possible to display the inside of the facility as 3D data on the navigation screen displayed in 3D, but it is possible to realize this function at an early stage due to problems such as the capacity of the hard disk device, image processing performance, content production cost, etc. difficult. Patent Document 1 also does not mention the cooperation between the facility on the map displayed in 3D and the information related to this facility.

  The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a navigation device with improved convenience by linking map data and information acquired from a network.

  In order to achieve such an object, the navigation device of the present invention, when a wireless communication unit connected to a server device on a network via a wireless communication line and a facility displayed on a navigation map are selected, A control unit is configured to acquire information related to the selected facility via the network and to display the acquired information on a display unit. When a facility displayed on the map is selected in this way, information related to the selected facility is acquired and displayed on the display unit, so that the map data and information can be linked, and convenience is improved. Can be increased. Since the user can easily obtain the related information of the facility displayed on the map while operating the navigation device, the operability is good.

  In the navigation device, when the map enlargement operation is input while the facility is selected, the control unit may display information related to the facility acquired via the network. When the facility is enlarged and displayed while selecting the facility, information related to the facility is displayed, so that the user can obtain a visual effect as if the user has entered the facility.

  In the navigation device, the information related to the facility relays an image in the facility, content associated with the facility, information related to an event scheduled to be held at the facility, and an event held at the facility. It may be either a television broadcast or a radio broadcast.

  Moreover, the said navigation apparatus WHEREIN: The said control part is good to display the map for navigation, and the information relevant to the said facility simultaneously on the said display part. The map for navigation and the information related to the facility can be viewed at the same time.

  According to the information display method of the present invention, when a facility displayed on a map for navigation is selected, information related to the selected facility is acquired via the network, and the acquired information is And displaying on the display unit. When a facility displayed on the map is selected in this way, information related to the selected facility is acquired and displayed on the display unit, so that the map data and information can be linked, and convenience is improved. Can be increased. Since the user can easily obtain the related information of the facility displayed on the map while operating the navigation device, the operability is good.

  The present invention can improve the convenience of the navigation device by linking the map data and information acquired from the network.

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

  First, the configuration of the present embodiment will be described with reference to FIG. As shown in FIG. 1, the navigation device 1 of this embodiment includes a map data storage medium 10, a disk driver 11, an operation unit 12, a communication device 13, a VICS (Vehicle Information and Communication System) sensor 14, a GPS receiver 15, A self-contained navigation sensor 16, a navigation controller 20, a display 40 and a speaker 41 are included.

  The map data storage medium 10 includes a storage device such as a CD-ROM, DVD, HDD. The map data stored in the map data storage medium 10 is divided into longitude and latitude widths of appropriate sizes according to the scale level such as 1/1500, 1/25000, 1 / 50,000 and 1/100000. The map is managed in units of leaves, and roads and the like are stored as a coordinate set of vertices (nodes) expressed by longitude and latitude. A road is formed by connecting two or more nodes, and a portion connecting two nodes is called a link. The map data of each leaf can be specified and read by designating the leaf number. In addition, map data for each map leaf includes a drawing unit composed of various data necessary for map display, a road unit composed of data necessary for various processes such as map matching, route search, route guidance, and intersections. An intersection unit consisting of detailed data is included. The drawing unit described above includes background layer data necessary for displaying buildings, rivers, and the like, and character layer data necessary for displaying city names, road names, and the like.

  The disk driver 11 reads various map data necessary for map display, route search, and the like, and program data from the map data storage medium 10 as necessary.

  The operation unit 12 is a remote controller or input keys for the user to input various instructions to the navigation controller 20.

  The radio wave receiving unit 13 receives broadcast radio waves from a television or radio and displays them on the display 40.

  The VICS sensor 14 receives traffic information provided from the VICS center via an optical beacon or a radio beacon. When the vehicle passes under an oscillator that transmits this optical beacon or radio wave beacon, road information is transmitted from the transmitter to the vehicle. The location data of the transmitter is included in the upper part of the road.

  The navigation device 1 receives radio waves transmitted from a plurality of GPS satellites, performs positioning processing, and calculates the relative position of the vehicle using satellite navigation that measures the absolute position of the vehicle and a plurality of sensors mounted on the vehicle. The current position of the vehicle is specified by the self-contained navigation to be measured. The vehicle position detection unit 22 that controls this function includes a GPS receiver 15, a GPS data storage unit 23, a self-contained navigation sensor 16, and a vehicle position / orientation calculation unit 24.

  The GPS receiver 15 receives a GPS signal sent from a GPS satellite and detects the current position and direction of the vehicle. More specifically, the GPS receiver 15 receives radio waves transmitted from a plurality of GPS satellites, performs three-dimensional positioning processing or two-dimensional positioning processing, calculates the absolute position and direction of the vehicle, and Is output together with the positioning time. The absolute position and direction of the vehicle calculated by the GPS receiver 15 and the positioning time are stored in the GPS data storage unit 23.

  The self-contained navigation sensor 16 includes a vehicle speed sensor 17, a gyro sensor 18, a reverse sensor 19, and the like, and measures the relative position of the vehicle using these sensors.

  The vehicle speed sensor 17 is disposed in the vehicle and detects the rotational speed of an output shaft or wheels of a transmission that outputs a driving force from an engine mounted on the vehicle, for example. Specifically, a predetermined number of vehicle speed pulses are output every time the wheel rotates once. By counting the number of vehicle speed pulses, the travel distance of the host vehicle can be calculated, and the vehicle speed of the host vehicle can be calculated from the travel distance per unit time.

  The gyro sensor 18 is a sensor for detecting the vehicle direction. The vehicle azimuth is calculated by sampling a predetermined number of azimuths determined from the current vehicle position at the present time and the vehicle position one sampling time before ΔT. The reverse sensor 19 outputs a signal indicating the reverse of the vehicle. The vehicle speed sensor 17, the gyro sensor 18, and the reverse sensor 19 enable autonomous navigation, and complement navigation using GPS.

  Based on the image data output from the navigation controller 20, the display 40 displays a map image around the host vehicle together with a vehicle position mark, a departure point mark, a destination mark, etc., and a guide route or a detour route on this map. Or display a guidance route. The speaker 41 outputs various messages to the user based on the audio data output from the navigation controller 20.

  The navigation controller 20 includes a buffer memory 21, a GPS data storage unit 23 and a vehicle position / orientation calculation unit 24, a control unit 25, a map drawing unit 26, an operation screen / mark generation unit 27, and a route storage. A unit 28, a route drawing unit 29, a mark storage unit 30, a mark drawing unit 31, a history memory unit 32, an audio output unit 33, a homepage drawing unit 34, a wireless communication unit 35, and an image composition unit 36.

  The buffer memory 21 temporarily stores map data and programs read from the map data storage medium 10 by the control unit 25 via the disk driver 11.

  The GPS data storage unit 23 stores the absolute position and direction of the vehicle calculated by the GPS receiver 15 and the positioning time.

  The vehicle position / orientation calculation unit 24 calculates the vehicle position (estimated vehicle position) and the vehicle direction based on the vehicle speed and the vehicle azimuth data output from the self-contained navigation sensor 16. Specifically, the vehicle travel distance is calculated by multiplying the vehicle speed pulse output from the vehicle speed sensor 17 by a correction coefficient that is the travel distance per vehicle speed pulse. Further, the vehicle speed is obtained by dividing the moving distance by the unit time. Further, the displacement amount obtained by the gyro sensor 18 is multiplied by a bearing calculation coefficient to obtain a moving bearing. When the moving distance and moving direction are obtained, the current position is obtained by adding the moving distance and moving direction to the vehicle position obtained last time.

  The control unit 25 is configured by a microcomputer, for example, and controls the navigation controller 20 as a whole. The control unit 25 calculates various costs under search conditions set using the read map data, and searches for a route from the departure point to the destination. For example, the guide route that minimizes the cost under various conditions such as the shortest time is selected. As a typical method of route search, Dijkstra method and horizontal search method are known. The searched route information is recorded in the route storage unit 28. Note that the cost is defined in the dimension of time, and is obtained by adding the time required to pass a certain section and the time required to pass an intersection or the like. In general, the average speed is set according to factors such as the width of the road and the road type (for example, general roads, high speeds, etc.), and the time required for passing the road is obtained. The cost is calculated by adding the time taken into consideration.

  Further, the control unit 25 displays a map around the vehicle position on the display 40 while the navigation device 1 is powered on. The vehicle position calculated from the GPS data of the GPS receiver 15 and the output data of the autonomous navigation sensor 16 is acquired, and the currently selected map scale stored in the buffer memory 21 is always checked. Unless the operation unit 12 inputs an operation for enlarging or reducing the map, the background data, road data, and facility data around the vehicle position corresponding to the currently selected map scale are transferred from the map data storage medium 10 to the disk driver 11. And store it in the buffer memory 21. When a map enlargement / reduction operation is input by the operation unit 12, background data, road data, and facility data corresponding to the corresponding map scale are read from the map data storage medium 10 and stored in the buffer memory 21.

  The map drawing unit 26 performs a map image drawing process using the map data read to the buffer memory 21.

  The operation screen / mark generation unit 27 generates various menu screens (operation screens) and various marks such as a vehicle position mark and a cursor according to the operation status.

  The route storage unit 28 includes data on all nodes (coordinate points expressed by latitude and longitude) from the departure point to the destination of the guidance route searched by the control unit 25, and the guidance route changed during guidance. Data is recorded. The route drawing unit 29 reads the guidance route data (node string) from the route storage unit 28 and draws the guidance route with a color and line width different from those of other roads.

  The mark storage unit 30 relates to icons of a predetermined shape (brand icon, category icon, etc.) given as information for instructing the position of the target property on the map screen and a simple shape mark given instead of this icon. Data is stored in advance. The mark drawing unit 31 performs drawing processing of data read from the mark storage unit 30 based on the control of the control unit 25.

  As shown in FIG. 3, the wireless communication unit 35 accesses an access point 52 in the vicinity of the host vehicle via a wireless communication line, and receives a call signal, a disconnection signal received from the access point 52, or various types of signals received via the network 52. Signals corresponding to various data such as a home page and e-mail are output to the control unit 25. In addition, various signals input from the control unit 25 are transmitted to the access point 52 in the vicinity of the host vehicle in order to connect to the network and perform browsing of a homepage, transmission of an e-mail, and the like.

  The homepage drawing unit 34 generates drawing data for displaying a homepage image based on various data acquired by connecting to the server device 50 on the network 51 shown in FIG.

  The image synthesis unit 36 synthesizes images output from the map drawing unit 26, the operation screen / mark generation unit 27, the route drawing unit 29, and the mark drawing unit 31 and outputs the synthesized image to the display 40.

  The history memory unit 32 is composed of a nonvolatile memory such as an EEPROM or a flash memory, and stores various data to be backed up. For example, information such as a destination set in the past and a facility where a search is performed is registered together with information on a set time and a search time. The audio output unit 33 outputs an audio signal to the speaker 41 based on the signal from the control unit 25.

  Next, the operation procedure of this embodiment will be described with reference to the flowchart shown in FIG. When the power is turned on, the navigation device 1 displays a map of the traveling direction of the vehicle on the display 40 as shown in FIG. 4 even if the destination is not set (step S1). Here, when the facility displayed on the map is selected by the operation unit 12 or the map is displayed in 3D as shown in FIG. 5, the operation unit 12 is operated to move the cursor to the facility. When the map enlargement operation (detailed display) is performed, the control unit 25 determines that this facility is selected (step S2 / YES), accesses the network via the wireless communication unit 35, and relates to this facility. Information is acquired (step S3). Then, information related to the acquired facility is displayed on the display 40 (step S4).

  For example, if the selected facility is a dome-shaped baseball field, an internal photograph of the baseball field released on the network is acquired and displayed on the display 40 as shown in FIG. In this way, map data and information on the network can be linked. The user can acquire the related information of the facility displayed on the map with a simple operation while operating the navigation device 1. Further, when the facility is enlarged while being selected, information related to the facility is displayed, so that the user can obtain a visual effect as if the user has entered the facility.

  In addition, the control unit 25 acquires data such as a television program guide from the server device 50 on the network 51, and determines whether or not a baseball broadcast is being performed at the selected dome baseball field. When baseball is being played, the radio wave receiving unit 13 receives the corresponding radio wave and displays it on the display 40. If the broadcast has not been performed, the game score is acquired and displayed as shown in FIG. 7, the homepage of the facility is displayed, and the schedule of events to be held at this facility is acquired in the future. Display. At this time, the display 40 may display the navigation map and the content acquired from the server device 50 at the same time by dividing the screen into two as shown in FIGS. The user can view both the navigation map and the content related to the facility displayed on the map.

  When an event to be held in the facility is displayed on the display 40, the user selects an interesting event from the displayed events by operating the operation unit 12. When an event is selected, the control unit 25 acquires more detailed information on the corresponding event from the server device 50 on the network, or accesses the server device 50 that sells a ticket for the event and displays it on the display 40. Display content.

  Thus, the navigation apparatus 1 of a present Example can improve the convenience of a navigation apparatus by making map data and the information acquired from the network cooperate. In addition, the user can be provided with a visual effect as if he / she entered the 3D-displayed facility to obtain information. In the above-described embodiment, 3D display has been described as an example. However, the present invention can be applied to even a two-dimensional display navigation device.

It is a figure for demonstrating the problem of the conventional navigation display. It is a figure which shows the structure of the navigation apparatus of this invention. It is a figure which shows the network structure which acquires information from a server apparatus. It is a display example of the display 40. It is a display example of the display 40. It is a display example of the display 40, and is an example in which a map for navigation and information acquired from the server device are displayed simultaneously. It is a display example of the display 40, and is an example in which a map for navigation and information acquired from the server device are displayed simultaneously. It is a flowchart which shows the operation | movement procedure of an Example.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Navigation apparatus 10 Map data storage medium 11 Disk driver 12 Operation part 13 Radio wave reception part 14 VICS sensor 15 GPS receiver 16 Self-supporting navigation sensor 17 Vehicle speed sensor 18 Gyro sensor 19 Reverse sensor 20 Navigation controller 21 Buffer memory 22 Vehicle position detection part 23 GPS data storage unit 24 Vehicle position / orientation calculation unit 25 Control unit 26 Map drawing unit 27 Operation screen / mark generation unit 28 Route storage unit 29 Route drawing unit 30 Mark storage unit 31 Mark drawing unit 32 History memory 33 Voice output unit 34 Homepage Drawing unit 35 Wireless communication unit 36 Image composition unit 40 Display 41 Speaker

Claims (8)

A wireless communication unit connected to a server device on the network via a wireless communication line;
A control unit that acquires information related to the selected facility via the network when the facility displayed on the navigation map is selected, and displays the acquired information on the display unit; A navigation device characterized by that.   2. The navigation according to claim 1, wherein the control unit displays information related to the facility acquired via the network when the map enlargement operation is input while the facility is selected. apparatus.   The navigation apparatus according to claim 1, wherein the information related to the facility is an image in the facility.   The navigation apparatus according to claim 1, wherein the information related to the facility is content associated with the facility.   The navigation apparatus according to claim 1, wherein the information related to the facility is information related to a schedule of an event performed at the facility.   The navigation apparatus according to claim 1 or 2, wherein the information related to the facility is a television broadcast or a radio broadcast that relays an event being performed at the facility.   The navigation device according to claim 1, wherein the control unit displays a navigation map and information related to the facility on the display unit at the same time. When a facility displayed on the navigation map is selected, obtaining information related to the selected facility via the network; and
And a step of displaying the acquired information on a display unit.

Images