WO2009128137A1 - 情報表示装置、位置算出装置、表示制御方法、位置算出方法、表示制御プログラム、位置算出プログラムおよび記録媒体 - Google Patents
情報表示装置、位置算出装置、表示制御方法、位置算出方法、表示制御プログラム、位置算出プログラムおよび記録媒体 Download PDFInfo
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- WO2009128137A1 WO2009128137A1 PCT/JP2008/057304 JP2008057304W WO2009128137A1 WO 2009128137 A1 WO2009128137 A1 WO 2009128137A1 JP 2008057304 W JP2008057304 W JP 2008057304W WO 2009128137 A1 WO2009128137 A1 WO 2009128137A1
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- WIPO (PCT)
- Prior art keywords
- current position
- moving body
- parking lot
- information
- determined
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C21/00—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00
- G01C21/26—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00 specially adapted for navigation in a road network
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C21/00—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00
- G01C21/26—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00 specially adapted for navigation in a road network
- G01C21/34—Route searching; Route guidance
- G01C21/36—Input/output arrangements for on-board computers
- G01C21/3667—Display of a road map
- G01C21/367—Details, e.g. road map scale, orientation, zooming, illumination, level of detail, scrolling of road map or positioning of current position marker
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C21/00—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00
- G01C21/26—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00 specially adapted for navigation in a road network
- G01C21/34—Route searching; Route guidance
- G01C21/36—Input/output arrangements for on-board computers
- G01C21/3679—Retrieval, searching and output of POI information, e.g. hotels, restaurants, shops, filling stations, parking facilities
- G01C21/3685—Retrieval, searching and output of POI information, e.g. hotels, restaurants, shops, filling stations, parking facilities the POI's being parking facilities
Definitions
- the present invention relates to an information display device, a position calculation device, a display control method, a position calculation method, a display control program, a position calculation program, and a recording medium that display or calculate the current position of a moving object.
- a navigation device mounted on a moving body calculates its own vehicle position by satellite navigation and self-contained navigation and sets it on road data.
- a GPS (Global Positioning System) receiver receives radio waves from a GPS satellite and obtains a geometric position with respect to the GPS satellite. The vehicle position is calculated.
- the self-contained navigation the amount of movement and direction of the vehicle are integrated by a self-supporting sensor such as a speed sensor or a direction sensor, and the position of the vehicle is calculated.
- the vehicle moves up and down while turning in a sloping passage connecting the floors.
- the movement amount calculated by the self-supporting sensor becomes larger than the actual movement amount due to the influence of gravity due to the inclination, and there is a problem that an error occurs in the own vehicle position.
- an error occurs in the position of the vehicle in the indoor parking lot, there is a problem that when the vehicle leaves the indoor parking lot, the vehicle position is set to a road that is not actually located.
- an information display device acquires position acquisition means for acquiring information relating to the current position of the moving object, and information relating to the traveling direction of the moving object.
- Azimuth direction acquisition means for displaying on the display means the current position and traveling direction of the moving body based on information on the current position of the moving body and information on the traveling direction of the moving body, and the moving body Determination means for determining entry and exit of the mobile object to and from the parking lot based on information relating to the current position of the mobile station, wherein the display control means is determined that the mobile object has entered the parking lot.
- the current position of the mobile body is not changed and only the traveling direction of the mobile body is changed and displayed on the display means.
- the Rukoto is the current position of the mobile body is not changed and only the traveling direction of the mobile body is changed and displayed on the display means.
- a position calculation device including position acquisition means for acquiring information relating to a current position of a moving object, direction acquisition means for acquiring information relating to a moving direction of the moving object, and current position of the moving object.
- the calculation means for calculating the current position and the moving direction of the moving body, and on the basis of the information on the current position of the moving body, the parking lot of the moving body Judgment means for judging entry and exit from the vehicle, wherein the calculation means until the mobile body is judged to have left the parking lot after it is judged that the mobile body has entered the parking lot During this period, only the traveling direction of the moving body is calculated without calculating the current position of the moving body.
- a position calculation method comprising: a position acquisition unit that acquires information related to a current position of a moving body; and an azimuth acquisition unit that acquires information related to a traveling direction of the moving body, A position calculation method in a position calculation device for calculating a current position and a traveling direction of the moving body based on information on a current position of the body and information on a traveling direction of the moving body, the information regarding the current position of the moving body Based on the determination step of determining the entrance and exit of the moving body to the parking lot, and it is determined that the mobile body has left the parking lot after it is determined that the mobile body has entered the parking lot. Until the current position of the moving body is not calculated, and only the traveling direction of the moving body is calculated.
- the display control program according to the invention of claim 7 causes a computer to execute the display control method according to claim 5.
- a position calculation program according to the invention of claim 8 causes a computer to execute the position calculation method according to claim 6.
- the recording medium according to the invention of claim 9 is characterized in that the display control program according to claim 7 or the position calculation program according to claim 8 is recorded in a computer-readable state.
- FIG. 1 is a block diagram of a functional configuration of the information display apparatus according to the first embodiment.
- FIG. 2 is a flowchart showing a display control processing procedure of the information display apparatus.
- FIG. 3 is a block diagram of a functional configuration of the position calculation apparatus according to the second embodiment.
- FIG. 4 is a flowchart showing a position calculation processing procedure of the position calculation apparatus.
- FIG. 5 is a block diagram of a hardware configuration of the navigation device according to the present embodiment.
- FIG. 6 is a flowchart showing the contents of the processing of the navigation device.
- FIG. 7 is an explanatory diagram showing a history of actual traveling of the vehicle.
- FIG. 8 is an explanatory diagram showing the difference in display of the current position mark of the vehicle between the conventional example and the example.
- FIG. 1 is a block diagram of a functional configuration of the information display apparatus according to the first embodiment.
- the information display device 100 includes a display unit 101, a position acquisition unit 102, an orientation acquisition unit 103, a determination unit 104, and a display control unit 105.
- the display unit 101 includes a display screen that displays map data.
- the map data is stored in a storage unit (not shown).
- the map data includes road network data composed of nodes and links, and image data drawn using features relating to facilities, roads, and other terrain (mountains, rivers, land).
- the map data may include text information, information such as facility names and addresses, road and facility images, and the like.
- the position acquisition unit 102 acquires information related to the current position of the moving object.
- the position acquisition unit 102 acquires information related to the current position of the moving body by receiving radio waves from GPS satellites, for example.
- the position acquisition unit 102 also acquires information acquired by receiving radio waves from GPS satellites, a speed sensor that detects the speed of the moving object, an acceleration sensor that detects the acceleration of the moving object, and the traveling direction of the moving object.
- the information on the movement of the moving body acquired by the gyro sensor to be detected may be acquired, the current position of the moving body may be calculated, and the information on the current position may be acquired.
- the azimuth acquisition unit 103 acquires information related to the moving azimuth of the moving object.
- the azimuth acquisition unit 103 acquires information related to the moving azimuth of the moving body, for example, based on information output from an azimuth sensor that detects the amount of change in the moving azimuth of the moving body.
- the determination unit 104 determines whether the moving body enters and leaves the parking lot based on the information on the current position of the moving body acquired by the position acquisition unit 102.
- the determination unit 104 may also determine whether or not the moving body is located on the road. For example, the determination unit 104 enters and leaves the parking lot of the mobile object based on the received intensity of the radio wave from the GPS satellite acquired by the position acquisition unit 102 and the amount of change in the elevation angle and the number of supplementary satellites related to the GPS satellite. Judging. For example, when the mobile object is not located on the road and the reception intensity from the GPS satellite is weaker than a predetermined value, or when the number of supplements of the satellite is lower than the predetermined value, the determination unit 104 determines whether the mobile object is parked. Even if it is determined that the vehicle has entered the parking lot, and the reception intensity from the GPS satellite is higher than the predetermined value, or the supplementary number of satellites is higher than the predetermined value, it may be determined that the mobile object has left the parking lot. Good
- the determination unit 104 determines, for example, whether or not the mobile object has entered the parking lot from map data or history information stored in a storage unit (not shown). In this case, when the current position of the moving object is the same position as the parking position based on the position information related to the parking lot in the map data stored in the storage unit or the position information related to the parking lot where the moving object has previously entered It is determined that the car has entered the parking lot.
- the determination unit 104 may determine that the moving object has left the parking lot when the moving body has a substantially constant traveling direction and the moving object has moved a predetermined distance or more.
- the determination unit 104 may determine that the moving object has left the parking lot when the moving speed of the moving object is equal to or higher than a predetermined value (for example, 35 km / hour or more).
- the determination unit 104 stores the storage unit, and when the mobile unit returns to the same altitude when it is determined that the parking unit has entered the parking lot, the mobile unit leaves the parking lot. You may judge.
- the determination unit 104 may determine the type of the parking lot together with the entrance of the moving object to the parking lot. For example, the determination unit 104 enters and leaves the parking lot of the mobile object based on the received intensity of the radio wave from the GPS satellite acquired by the position acquisition unit 102 and the amount of change in the elevation angle and the number of supplementary satellites related to the GPS satellite. At the same time, the type of parking lot is determined.
- the display control unit 105 causes the display unit 101 to display the current position and the moving direction of the moving object based on the information related to the current position of the moving object and the information related to the moving direction of the moving object. In addition, the display control unit 105 does not change the current position of the moving object after the determination unit 104 determines that the moving object has entered the parking lot until it is determined that the moving object has left the parking lot. Only the traveling direction of the moving object is changed and displayed on the display unit 101.
- the display control unit 105 determines that the moving body has exited the indoor parking lot after it is determined that the moving body has entered the indoor parking lot. Meanwhile, only the moving direction of the moving body may be changed and displayed on the display unit 101 without changing the current position of the moving body.
- the display control unit 105 when the map data is displayed on the display unit 101, the display control unit 105 superimposes on the map a mark arranged at the current position of the moving body and oriented in the traveling direction of the moving body. To display. In this case, the determination unit 104 determines only the direction of the mark without changing the arrangement position of the mark until it is determined that the moving object has entered the parking lot until it is determined that the moving object has left the parking lot. It is changed and superimposed on the map and displayed on the display unit 101.
- FIG. 2 is a flowchart showing a display control processing procedure of the information display apparatus.
- the position acquisition unit 102 acquires information related to the current position of the moving object (step S201).
- the direction acquisition unit 103 acquires information related to the moving direction of the moving body (step S202).
- step S203 acquires information related to the moving direction of the moving body (step S202).
- step S203 determines whether or not the moving body has entered the parking lot based on the information regarding the current position of the moving body acquired in step S201 (step S203).
- step S203 when it is determined that the moving body has entered the parking lot (step S203: Yes), the display control unit 105 causes the display unit 101 to display only the traveling direction of the moving body without changing the current position of the moving body. Is changed and displayed (step S204).
- the determination unit 104 determines whether or not the mobile object has left the parking lot based on the information regarding the current position of the mobile object acquired in step S201 (step S205). If it is not determined in step S205 that the moving object has left the parking lot (step S205: No), the process returns to step S204, and the subsequent processing is repeated.
- step S205 When it is determined in step S205 that the moving body has left the parking lot (step S205: Yes), the display control unit 105 causes the display unit 101 to display information on the current position of the moving body acquired in step S201, and step S202. Based on the information on the moving direction of the moving body acquired in step S1, the current position and the moving direction of the moving body are displayed (step S206), and the series of processing ends.
- step S203 determines whether the mobile object has entered the parking lot. If it is not determined in step S203 that the mobile object has entered the parking lot (step S203: No), the process proceeds to step S206, and the display control unit 105 displays the current mobile object acquired in step S201 on the display unit 101. Based on the information related to the position and the information related to the moving direction of the moving object acquired in step S202, the current position and the moving direction of the moving object are displayed, and the series of processes ends.
- step S203 when the mobile object enters the parking lot, the type of the parking lot is also determined, and when it is determined that the mobile object has entered the indoor parking lot, step S204 is performed. It is good also as a structure which progresses to.
- step S203 when it is determined that the moving body has entered a parking lot other than the indoor parking lot, the process may proceed to step S206.
- step S204 when the position acquisition unit 102 acquires the value accumulated by the hybrid positioning as information on the current position of the moving body, the process proceeds to step S204 even when the moving body enters the rooftop parking lot in step S203. It is good.
- hybrid positioning integrates the positioning results obtained from GPS and the relative movement amounts output from various sensors, but in the case of a rooftop parking lot, the mobile object turns in and out of the parking lot. This is because the amount of error due to various sensors increases when moving.
- the display control unit 105 when displaying a mark arranged at the current position of the moving body and oriented in the traveling direction of the moving body in the map data, the display control unit 105 performs the mark placement in step S204. Only the direction of the mark is changed without changing the position, and the mark is superimposed on the map and displayed on the display unit 101. Further, in step S206, the display control unit 105 changes the mark arrangement position and the mark direction and causes the display unit 101 to display the mark superimposed on the map.
- the display control unit 105 that displays the current position and traveling direction of the moving body on the display unit 101 determines that the moving body has entered the parking lot. Until the mobile object is determined to have left the parking lot, only the traveling direction of the mobile object can be changed and displayed on the display unit 101 without changing the current position of the mobile object. Therefore, for example, when the radio wave from a GPS satellite is weak and an accurate position and direction cannot be acquired, the current position of the moving body is accommodated with an error equal to or smaller than the size of the parking lot, so the error with respect to the current position of the moving body is reduced.
- the display control unit 105 determines that the moving body has entered the indoor parking lot until it is determined that the moving body has left the indoor parking lot. Meanwhile, only the traveling direction of the moving object can be changed and displayed on the display unit 101 without changing the current position of the moving object. Therefore, in an outdoor parking lot where the radio wave from the GPS satellite is strong, the position and direction can be changed and displayed, and in an indoor parking lot where the radio wave from the GPS satellite is weak, only the direction can be changed and displayed. As a result, even when the moving body is located in the parking lot, when the correct position and direction are obtained, the position and direction are changed and displayed, so that the error relative to the current position of the moving body is further reduced.
- the display control unit 105 superimposes a mark arranged at the current position of the moving body and oriented in the traveling direction of the moving body on the map. To display.
- the display control unit 105 determines only the direction of the mark without changing the arrangement position of the mark until it is determined that the moving body has entered the parking lot until it is determined that the moving body has left the parking lot. And can be superimposed on the map and displayed on the display means. Therefore, for example, when the radio wave from the GPS satellite is weak and the accurate position and direction cannot be obtained, the mark placement position will be within the error of the size of the parking lot, so when map matching after leaving the parking lot Errors are reduced.
- FIG. 3 is a block diagram of a functional configuration of the position calculation apparatus according to the second embodiment.
- the position calculation apparatus 300 includes a position acquisition unit 102, an orientation acquisition unit 103, a determination unit 104, and a calculation unit 301.
- the position acquisition unit 102, the direction acquisition unit 103, and the determination unit 104 are the same as those in the first embodiment, the description thereof is omitted.
- the calculation unit 301 calculates the current position and the moving direction of the moving object based on the information about the current position of the moving object acquired by the position acquiring unit 102 and the information about the moving direction of the moving object acquired by the direction acquiring unit 103. calculate. In addition, the calculation unit 301 does not calculate the current position of the moving object after the determination unit 104 determines that the moving object has entered the parking lot until it is determined that the moving object has left the parking lot. Only the moving direction of the moving object is calculated.
- FIG. 4 is a flowchart showing a position calculation processing procedure of the position calculation apparatus.
- the position acquisition unit 102 acquires information related to the current position of the moving object (step S401).
- the direction acquisition unit 103 acquires information related to the traveling direction of the moving body (step S402).
- the processing in steps S401 and S402 is always performed when performing steps S403 to S406 described later.
- the determination unit 104 determines whether or not the moving body has entered the parking lot based on the information regarding the current position of the moving body acquired in step S401 (step S403). If it is determined in step S403 that the moving body has entered the parking lot (step S403: Yes), the calculation unit 301 calculates only the traveling direction of the moving body without changing the current position of the moving body (step S403). S404).
- the determination unit 104 determines whether or not the mobile object has left the parking lot based on the information regarding the current position of the mobile object acquired in step S401 (step S405). If it is not determined in step S405 that the moving object has left the parking lot (step S405: No), the process returns to step S404, and the subsequent processing is repeated.
- step S405 When it is determined in step S405 that the moving object has left the parking lot (step S405: Yes), the calculation unit 301 acquires information on the current position of the moving object acquired in step S401 and the movement acquired in step S402. Based on the information related to the traveling direction of the body, the current position and the traveling direction of the moving body are calculated (step S406), and the series of processing ends.
- step S403 when it is not determined in step S403 that the moving body has entered the parking lot (step S403: No), the process proceeds to step S406, and information on the current position of the moving body acquired in step S401 and acquired in step S402. Based on the information related to the moving direction of the moving body, the calculation unit 301 calculates the current position and the moving direction of the moving body, and ends the series of processes.
- the calculation unit 301 that calculates the current position and the traveling direction of the moving object determines that the moving object has entered the parking lot. Until it is determined that the parking lot has been left, it is possible to calculate only the traveling direction of the moving body without calculating the current position of the moving body. Therefore, for example, when the radio wave from a GPS satellite is weak and an accurate position and direction cannot be acquired, the current position of the moving body is accommodated with an error equal to or smaller than the size of the parking lot, so the error with respect to the current position of the moving body is reduced.
- FIG. 5 is a block diagram of a hardware configuration of the navigation device according to the present embodiment.
- the navigation apparatus 500 includes a CPU 501, a ROM 502, a RAM 503, a magnetic disk drive 504, a magnetic disk 505, an optical disk drive 506, an optical disk 507, an audio I / F (interface) 508, and a microphone 509.
- the components 501 to 517 are connected by a bus 520, respectively.
- the CPU 501 governs overall control of the navigation device 500.
- the ROM 502 stores programs such as a boot program, a data update program, an entrance / exit determination program, a type determination program, a position / orientation calculation program, and a map matching processing program.
- the RAM 503 is used as a work area for the CPU 501. That is, the CPU 501 controls the entire navigation device 500 by executing various programs recorded in the ROM 502 while using the RAM 503 as a work area.
- the entrance / exit judgment program is based on the result of map matching processing described later and the reception intensity (hereinafter referred to as GPS signal) of received radio waves (hereinafter referred to as GPS signals) received from GPS satellites received by the GPS unit 515 described later. Based on this, it is determined whether or not the vehicle is located in the parking lot. Further, the entrance / exit determination program may determine that the vehicle has left the parking lot, for example, when the traveling direction of the vehicle is substantially constant and the vehicle has moved a predetermined distance or more. Further, when the moving speed of the vehicle is equal to or higher than a predetermined value (for example, 35 km / hour or higher), it may be determined that the vehicle has left the parking lot. Furthermore, for example, when the vehicle altitude recorded on the magnetic disk 505 or the optical disk 507 is determined to have entered the parking lot, and returned to the same altitude, it is determined that the vehicle has left the parking lot. Also good.
- the type determination program makes the type of the parking lot where the vehicle entered enter.
- the type determination program determines the type of parking lot based on the GPS signal level received by the GPS unit 515 and the amount of change in the elevation angle and the number of supplementary satellites related to GPS satellites.
- the types of parking lots are, for example, indoor parking lots, rooftop parking lots, outdoor parking lots, street parking lots, and the like.
- the type determination program determines, for example, whether a parking lot where a vehicle has entered is an indoor parking lot or another parking lot. For example, when the navigation apparatus 500 performs hybrid positioning for calculating the current position of the vehicle based on output information from the GPS unit 515 described later and output values of various sensors 516 described later, You may make it judge whether it is a rooftop parking lot or another parking lot.
- the position / orientation calculation program calculates the current position and direction of the vehicle based on outputs from the GPS unit 515 and various sensors 516. In addition, the position / orientation calculation program calculates the current position of the vehicle from when it is determined that the vehicle has entered the parking lot until it is determined that the vehicle has exited based on the determination result of the entrance / exit determination program. Instead, only the traveling direction of the vehicle is calculated.
- the map matching processing program Based on the current position of the vehicle calculated by the position / orientation calculation program and the map data, the map matching processing program identifies a position on the road where the vehicle is likely to be actually located. A mark representing the current position of the vehicle is displayed at the position. In addition to the current vehicle position and map data calculated by the position / orientation calculation program, the map matching processing program is based on the traveling direction of the vehicle and on the road where the vehicle is likely to be actually located. The position may be specified. This state is called an on-load state.
- the map matching processing program does not identify a road where the vehicle is likely to be actually located based on the situation where the current position of the vehicle calculated by the position / orientation calculation program is more than a predetermined distance from the road. In this case, it is determined that the vehicle is not located on the road, and a mark indicating the current position of the vehicle is displayed at a position on the map corresponding to the current position of the vehicle calculated by the position / orientation calculation program. This state is called an offload state.
- the map matching processing program displays a mark representing the vehicle direction based on the vehicle direction calculated by the position / orientation calculation program. Note that the current position and direction of the vehicle may be represented by a single mark.
- the magnetic disk drive 504 controls the reading / writing of the data with respect to the magnetic disk 505 according to control of CPU501.
- the magnetic disk 505 records data written under the control of the magnetic disk drive 504.
- an HD hard disk
- FD flexible disk
- the optical disk drive 506 controls reading / writing of data with respect to the optical disk 507 according to the control of the CPU 501.
- the optical disk 507 is a detachable recording medium from which data is read according to the control of the optical disk drive 506.
- a writable recording medium can be used.
- a removable recording medium in addition to the optical disk 507, an MO, a memory card, or the like may be used.
- Examples of information recorded on the magnetic disk 505 and the optical disk 507 include map data and function data.
- the map data includes background data that represents features (features) such as buildings, rivers, and the ground surface, and road shape data that represents the shape of the road, and is composed of multiple data files divided by district. ing.
- the road shape data further has traffic condition data.
- Traffic condition data includes, for example, the presence or absence of traffic lights or pedestrian crossings for each node, the presence or absence of entrances or junctions of expressways, the length (distance) for each link, road width, direction of travel, road type (highway, Such as toll roads and general roads).
- the functional data is three-dimensional data representing the shape of the facility on the map, character data representing the description of the facility, and other various data other than the map data.
- Map data and function data are recorded in blocks divided by district or function. Specifically, for example, the map data is recorded in such a state that each map can be divided into blocks so that each map represents a predetermined area on the map displayed on the display screen. Further, for example, the function data is recorded in a state where each function can be divided into a plurality of blocks so as to realize one function.
- the function data is data for realizing functions such as program data for realizing route search, calculation of required time, route guidance, and the like.
- Each of the map data and the function data is composed of a plurality of data files divided for each district or each function.
- the voice I / F 508 is connected to a microphone 509 for voice input and a speaker 510 for voice output.
- the sound received by the microphone 509 is A / D converted in the sound I / F 508.
- the microphones 509 are installed near the sun visor of the vehicle, and the number thereof may be one or more.
- From the speaker 510 a sound obtained by D / A converting a predetermined sound signal in the sound I / F 508 is output. Note that the sound input from the microphone 509 can be recorded as sound data on the magnetic disk 505 or the optical disk 507.
- Examples of the input device 511 include a remote controller, a keyboard, and a touch panel that are provided with a plurality of keys for inputting characters, numerical values, various instructions, and the like.
- the input device 511 may be realized by any one form of a remote control, a keyboard, and a touch panel, but may be realized by a plurality of forms.
- the video I / F 512 is connected to the display 513.
- the video I / F 512 is output from, for example, a graphic controller that controls the entire display 513, a buffer memory such as a VRAM (Video RAM) that temporarily records image information that can be displayed immediately, and a graphic controller.
- a control IC for controlling the display 513 based on the image data to be processed.
- the display 513 displays icons, cursors, menus, windows, or various data such as characters and images.
- the map data described above is drawn two-dimensionally or three-dimensionally.
- the map data displayed on the display 513 can be displayed with a mark representing the current position of the vehicle on which the navigation device 500 is mounted. The current position of the vehicle is calculated by the CPU 501.
- the display 513 for example, a CRT, a TFT liquid crystal display, a plasma display, or the like can be used.
- the display 513 is installed near the dashboard of the vehicle, for example.
- a plurality of displays 513 may be installed in the vehicle, for example, in the vicinity of the dashboard of the vehicle or in the vicinity of the rear seat of the vehicle.
- the communication I / F 514 is connected to the network via wireless and functions as an interface between the navigation device 500 and the CPU 501.
- the communication I / F 514 is further connected to a communication network such as the Internet via wireless, and also functions as an interface between the communication network and the CPU 501.
- Communication networks include LAN, WAN, public line network and mobile phone network.
- the communication I / F 514 includes, for example, an FM tuner, a VICS (Vehicle Information and Communication System) / beacon receiver, a radio navigation device, and other navigation devices. Get road traffic information such as regulations. VICS is a registered trademark.
- the communication I / F 514 is configured by an in-vehicle wireless device that performs two-way wireless communication with a wireless device installed on the roadside, for example, when using DSRC (Dedicated Short Range Communication), and traffic information and map data Get various information.
- DSRC Dedicated Short Range Communication
- a specific example of DSRC is ETC (non-stop automatic fee payment system).
- the GPS unit 515 receives radio waves from GPS satellites and outputs information indicating the current position of the vehicle.
- the output information of the GPS unit 515 is used when the CPU 501 calculates the current position of the vehicle together with output values of various sensors 516 described later.
- the information indicating the current position is information for specifying one point on the map data such as latitude / longitude and altitude.
- GPS is an abbreviation for Global Positioning System, and is a system for accurately obtaining a position on the ground by receiving GPS signals from four or more satellites.
- the GPS unit 515 includes an antenna for receiving a GPS reception wave from a GPS satellite, a tuner that demodulates the received GPS reception wave, an arithmetic circuit that calculates a current position based on the demodulated information, and the like.
- the various sensors 516 output information for determining the position and behavior of the vehicle, such as a vehicle speed sensor, an acceleration sensor, and an angular velocity sensor.
- the output values of the various sensors 516 are used by the CPU 501 for calculating the current position of the vehicle and for calculating the amount of change in speed and direction.
- the various sensors 516 may include an orientation sensor that detects the amount of change in the traveling direction of the vehicle.
- the camera 517 captures images inside or outside the vehicle.
- the image may be either a still image or a moving image.
- a camera 517 captures the behavior of a passenger inside the vehicle, and the captured image is output to a recording medium such as the magnetic disk 505 or the optical disk 507 via the image I / F 512. To do.
- the camera 517 captures the situation outside the vehicle, and outputs the captured image to a recording medium such as the magnetic disk 505 or the optical disk 507 via the video I / F 512.
- the camera 517 has an infrared camera function, and the surface temperature distributions of the objects existing inside the vehicle can be relatively compared based on video information captured using the infrared camera function. The video output to the recording medium is overwritten and stored.
- the azimuth acquiring unit 103, the determining unit 104, and the calculating unit 301 are configured such that the CPU 501 uses a program and data recorded in the ROM 502, the RAM 503, the magnetic disk 505, the optical disk 507, and the like in the navigation device 500 illustrated in FIG.
- the function is realized by executing the program and controlling each unit in the navigation device 500.
- the navigation device 500 executes the display control program or the position calculation program recorded in the ROM 502 as a recording medium in the navigation device 500, so that the information display device shown in FIG.
- the functions provided in the position calculation device can be executed by the display control processing procedure shown in FIG. 2 or the position calculation program shown in FIG.
- FIG. 6 is a flowchart showing the contents of the processing of the navigation device.
- a GPS signal is received by the GPS unit 515 (step S601). Further, information related to the traveling direction of the vehicle is acquired by the various sensors 516 (step S602).
- step S603 the GPS signal level of the GPS signal received in step S601 is acquired (step S603). Then, it is determined whether or not the result of the map matching process in the previous process is an off-road state and the GPS signal level acquired in step S603 is equal to or lower than a predetermined value (step S604). The result of the map matching process will be described later. In determining whether or not the GPS signal level is equal to or lower than a predetermined value in step S604, for example, the GPS signal level having the highest reception level is acquired from among a plurality of GPS signals received by the GPS unit 515.
- an average value obtained by averaging the levels of a plurality of GPS signals or an average value obtained by averaging the levels of GPS signals from GPS satellites that satisfy specific conditions such as the elevation angle, direction, and number of supplementary satellites with respect to the GPS satellites are also obtained. Good. Further, a value obtained by removing noise from the GPS signal level using a Kalman filter may be used. When the GPS unit 515 does not receive a GPS signal, the GPS signal level is determined to be zero.
- step S604 If it is determined in step S604 that the map matching result in the previous process is on-road or the GPS signal level is greater than a predetermined value (step S604: No), it is determined that the current position of the vehicle is outside the indoor parking lot (Ste S605). Then, based on the GPS signal acquired in step S601 and the information related to the traveling direction acquired in step S602, the current position and traveling direction of the vehicle are calculated (step S606).
- map matching processing is performed based on the current position and traveling direction calculated in step S606 and the map data, and the position and direction of the current position mark of the vehicle are changed and displayed on the map (step S607). ). Further, it is stored in an unillustrated memory or the like whether the result of the map matching process in step S607 is an on-load state or an off-load state (step S608). Then, a series of processing ends.
- step S604 when it is determined in step S604 that the result of the map matching process in the previous process is an off-road state and the GPS signal level is equal to or lower than a predetermined value (step S604: Yes), the current position of the vehicle is within the indoor parking lot. It is determined that there is (step S609). Then, only the traveling direction of the vehicle is calculated based on the information related to the traveling direction acquired in step S602 (step S610). Next, based on the traveling direction calculated in step S610, only the direction of a mark indicating the current position of the vehicle (hereinafter referred to as the current position mark) is changed and displayed on the map (step S611), and step S608 is performed. Proceed to In this case, in step S608, the offload state is stored in a memory or the like. Then, a series of processing ends.
- step S604 when the navigation device 500 performs hybrid positioning, it may be determined in step S604 whether or not the GPS signal is equal to or less than a threshold value indicating a rooftop parking lot.
- the process proceeds to step S609, where it is determined that the current position of the vehicle is in the indoor parking lot or the rooftop parking lot. To do.
- the process proceeds to step S605, where it is determined that the current position of the vehicle is outside the indoor parking lot or outside the rooftop parking lot. Perform the process.
- FIG. 7 is an explanatory diagram showing a history of actual traveling of the vehicle.
- FIG. 8 is an explanatory diagram showing the difference in display of the current position mark of the vehicle in the conventional example and the example.
- the vehicle enters from the entrance / exit 721 of the indoor parking lot 720 and travels in the indoor parking lot 720 in the order of the current position mark 701 to the current position mark 707. Furthermore, it is assumed that the vehicle exits from the entrance / exit 721 and travels in the order of the current position mark 708 to the current position mark 710.
- both the position and direction of the current position mark are changed and displayed even in the indoor parking lot 720.
- the GPS signal level is equal to or lower than a predetermined value
- information on the current position of the vehicle is acquired by a speed sensor and an acceleration sensor included in the various sensors 516.
- an accurate position of the vehicle cannot be acquired, and an error occurs.
- the indoor parking lot 720 for example, when the parking space is divided into a plurality of floors, the vehicle moves up and down while turning in a sloping passage connecting the floors. For this reason, the movement amount of the vehicle detected for calculating the current position becomes a larger value than the actual movement amount due to the influence of gravity due to the inclination, and an error further occurs.
- the current position mark 707 is away from the position where the vehicle actually exited (current position mark 707 in FIG. 7). Is displayed. Further, when the vehicle moves to the current position mark 708 after leaving the indoor parking lot 720, the vehicle is actually located on the road 730 near the parking lot 720 as shown in FIG. In the conventional example, a current position mark 708 is displayed at a position close to a different road 731. Furthermore, if map matching processing is performed on the current position mark 708 at this time, for example, the current position mark 801 after map matching is displayed on the road 731 where the vehicle is not actually located.
- the display method of the current position mark of the embodiment when it is determined that the vehicle has entered the indoor parking lot 720, the position of the current position mark is not changed, and only the direction is changed and displayed. Therefore, for example, even if an error occurs in the direction, the error relative to the position is within the size of the indoor parking lot 720. For this reason, when leaving the indoor parking lot 720, the current position mark 707 is displayed closer to the position where the vehicle actually leaves (current position mark 707 in FIG. 7) than the conventional example. Therefore, when the vehicle advances to the current position mark 708 after leaving the indoor parking lot 720, it is displayed near the road 730 where the vehicle is actually located as shown in FIG. At this time, when map matching processing is performed on the current position mark 708, for example, the current position mark 802 after map matching is displayed on the road 730 where the vehicle is actually located.
- the current position mark of the vehicle is displayed at a position far from the actual position. Therefore, for example, after leaving the indoor parking lot, there is a problem that the map matching process is performed on a road other than the road where the vehicle is actually located.
- the current position mark display method of the embodiment since the error with respect to the position of the vehicle is equal to or less than the size of the parking lot, the current position mark of the vehicle is displayed at a position close to the actual position. Therefore, for example, after leaving the indoor parking lot, the map matching process can be performed on the road where the vehicle is actually located.
- an error in map matching can be reduced.
- the moving body determines that the moving body has entered the parking lot by the calculation unit 301 that calculates the current position and traveling direction of the moving body. It is possible to calculate only the traveling direction of the moving object without calculating the current position of the moving object until it is determined that the vehicle has left. Therefore, for example, when the radio wave from a GPS satellite is weak and an accurate position and direction cannot be acquired, the current position of the moving body is accommodated with an error equal to or smaller than the size of the parking lot, so the error with respect to the current position of the moving body is reduced.
- the mobile object is parked after the display control unit 105 that displays the current position and the traveling direction of the mobile object on the display unit 101 determines that the mobile object has entered the parking lot. Until it is determined that the vehicle has left the vehicle, only the traveling direction of the moving object can be changed and displayed on the display unit 101 without changing the current position of the moving object. Therefore, for example, when the radio wave from a GPS satellite is weak and an accurate position and direction cannot be acquired, the current position of the moving body is accommodated with an error equal to or smaller than the size of the parking lot, so the error with respect to the current position of the moving body is reduced.
- the display control unit 105 moves from when it is determined that the moving body has entered the indoor parking lot until it is determined that the moving body has left the indoor parking lot. Only the moving direction of the moving body can be changed and displayed on the display unit 101 without changing the current position of the body. Therefore, in an outdoor parking lot where the radio wave from the GPS satellite is strong, the position and direction can be changed and displayed, and in an indoor parking lot where the radio wave from the GPS satellite is weak, only the direction can be changed and displayed. As a result, even when the moving body is located in the parking lot, when the accurate position and orientation are acquired, the position and orientation are changed and displayed, so that the error relative to the current position of the moving body is further reduced.
- the display control unit 105 causes the display unit 101 to display a mark that is arranged at the current position of the moving body and that has a direction in the traveling direction of the moving body on the map. .
- the display control unit 105 determines only the direction of the mark without changing the arrangement position of the mark until it is determined that the moving body has entered the parking lot until it is determined that the moving body has left the parking lot. And can be superimposed on the map and displayed on the display means. Therefore, for example, when the radio wave from the GPS satellite is weak and the accurate position and direction cannot be obtained, the mark placement position will be within the error of the size of the parking lot, so when map matching after leaving the parking lot Errors are reduced.
- the display control method or the position calculation method described in the first embodiment or the second embodiment executes a program prepared in advance on a computer such as a personal computer, a workstation, or a mobile terminal device (mobile phone). Can be realized.
- This program is recorded on a computer-readable recording medium such as a hard disk, a flexible disk, a CD-ROM, an MO, and a DVD, and is executed by being read from the recording medium by the computer.
- the program may be a transmission medium that can be distributed via a network such as the Internet.
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Abstract
Description
101 表示部
102 位置取得部
103 方位取得部
104 判断部
105 表示制御部
(情報表示装置の機能的構成)
まず、この発明の実施の形態1にかかる情報表示装置100の機能的構成について説明する。図1は、実施の形態1にかかる情報表示装置の機能的構成を示すブロック図である。
つぎに、情報表示装置100の表示制御処理手順について説明する。図2は、情報表示装置の表示制御処理手順を示すフローチャートである。図2のフローチャートにおいて、まず、位置取得部102によって移動体の現在位置に関する情報を取得する(ステップS201)。また、方位取得部103によって移動体の進行方位に関する情報を取得する(ステップS202)。なお、後述するステップS203からステップS206をおこなう際にも、ステップS201およびステップS202における処理は、常におこなっていることとする。
(情報表示装置の機能的構成)
まず、この発明の実施の形態2にかかる位置算出装置300の機能的構成について説明する。図3は、実施の形態2にかかる位置算出装置の機能的構成を示すブロック図である。
つぎに、位置算出装置300の位置算出処理手順について説明する。図4は、位置算出装置の位置算出処理手順を示すフローチャートである。図4のフローチャートにおいて、まず、位置取得部102によって移動体の現在位置に関する情報を取得する(ステップS401)。また、方位取得部103によって移動体の進行方位に関する情報を取得する(ステップS402)。なお、図2のフローチャートと同様に、後述するステップS403からステップS406をおこなう際にも、ステップS401およびステップS402における処理は、常におこなっていることとする。
つぎに、本実施例にかかるナビゲーション装置500のハードウェア構成について説明する。図5は、本実施例にかかるナビゲーション装置のハードウェア構成を示すブロック図である。図5において、ナビゲーション装置500は、CPU501と、ROM502と、RAM503と、磁気ディスクドライブ504と、磁気ディスク505と、光ディスクドライブ506と、光ディスク507と、音声I/F(インターフェース)508と、マイク509と、スピーカ510と、入力デバイス511と、映像I/F512と、ディスプレイ513と、通信I/F514と、GPSユニット515と、各種センサ516と、カメラ517と、を備えている。各構成部501~517は、バス520によってそれぞれ接続されている。
つぎに、ナビゲーション装置500の処理の内容について説明する。なお、この処理は所定の間隔で繰り返し実行されるものとする。図6は、ナビゲーション装置の処理の内容を示すフローチャートである。図6のフローチャートにおいて、まず、GPSユニット515によってGPSシグナルを受信する(ステップS601)。また、各種センサ516によって車両の進行方位に関する情報を取得する(ステップS602)。
つぎに、図7および図8を用いて、図6のステップS611における、現在位置マークの方位のみを変更する処理について説明する。図7は、実際に車両が走行した履歴を示す説明図である。また、図8は、従来例および実施例の車両の現在位置マークの表示の違いについて示す説明図である。
Claims (9)
- 移動体の現在位置に関する情報を取得する位置取得手段と、
前記移動体の進行方位に関する情報を取得する方位取得手段と、
前記移動体の現在位置に関する情報および前記移動体の進行方位に関する情報に基づいて、前記移動体の現在位置および進行方位を表示手段に表示させる表示制御手段と、
前記移動体の現在位置に関する情報に基づいて、前記移動体の駐車場への入場および退場を判断する判断手段と、
を備え、
前記表示制御手段は、前記移動体が前記駐車場に入場したと判断されてから前記移動体が前記駐車場を退場したと判断されるまでの間、前記移動体の現在位置を変更せずに前記移動体の進行方位のみを変更して前記表示手段に表示させることを特徴とする情報表示装置。 - 前記判断手段は、前記移動体の前記駐車場への入場とともに当該駐車場の種別もあわせて判断し、
前記表示制御手段は、前記移動体が屋内駐車場に入場したと判断されてから前記移動体が前記屋内駐車場を退場したと判断されるまでの間、前記移動体の現在位置を変更せずに前記移動体の進行方位のみを変更して前記表示手段に表示させることを特徴とする請求項1に記載の情報表示装置。 - 前記表示制御手段は、
前記移動体の現在位置に配置され且つ前記移動体の進行方位に向きをもつマークを地図上に重畳して前記表示手段に表示させ、
前記移動体が前記駐車場に入場したと判断されてから前記移動体が前記駐車場を退場したと判断されるまでの間、前記マークの配置位置を変更せずに前記マークの向きのみを変更して前記地図上に重畳して前記表示手段に表示させることを特徴とする請求項1または2に記載の情報表示装置。 - 移動体の現在位置に関する情報を取得する位置取得手段と、
前記移動体の進行方位に関する情報を取得する方位取得手段と、
前記移動体の現在位置に関する情報および前記移動体の進行方位に関する情報に基づいて、前記移動体の現在位置および進行方位を算出する算出手段と、
前記移動体の現在位置に関する情報に基づいて、前記移動体の駐車場への入場および退場を判断する判断手段と、
を備え、
前記算出手段は、前記移動体が前記駐車場に入場したと判断されてから前記移動体が前記駐車場を退場したと判断されるまでの間、前記移動体の現在位置を算出せずに、前記移動体の進行方位のみを算出することを特徴とする位置算出装置。 - 移動体の現在位置に関する情報を取得する位置取得手段と、前記移動体の進行方位に関する情報を取得する方位取得手段と、を備え、前記移動体の現在位置に関する情報および前記移動体の進行方位に関する情報に基づいて、前記移動体の現在位置および進行方位を表示する情報表示装置における表示制御方法であって、
前記移動体の現在位置に関する情報に基づいて、前記移動体の駐車場への入場および退場を判断する判断工程と、
前記移動体が前記駐車場に入場したと判断されてから前記移動体が前記駐車場を退場したと判断されるまでの間、前記移動体の現在位置を変更せずに前記移動体の進行方位のみを変更して前記情報表示装置に表示させる表示制御工程と、
を含むことを特徴とする表示制御方法。 - 移動体の現在位置に関する情報を取得する位置取得手段と、前記移動体の進行方位に関する情報を取得する方位取得手段と、を備え、前記移動体の現在位置に関する情報および前記移動体の進行方位に関する情報に基づいて、前記移動体の現在位置および進行方位を算出する位置算出装置における位置算出方法であって、
前記移動体の現在位置に関する情報に基づいて、前記移動体の駐車場への入場および退場を判断する判断工程と、
前記移動体が前記駐車場に入場したと判断されてから前記移動体が前記駐車場を退場したと判断されるまでの間、前記移動体の現在位置を算出せずに、前記移動体の進行方位のみを算出する算出工程と、
を含むことを特徴とする位置算出方法。 - 請求項5に記載の表示制御方法をコンピュータに実行させることを特徴とする表示制御プログラム。
- 請求項6に記載の位置算出方法をコンピュータに実行させることを特徴とする位置算出プログラム。
- 請求項7に記載の表示制御プログラムまたは請求項8に記載の位置算出プログラムを記録したことを特徴とするコンピュータに読み取り可能な記録媒体。
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2010508052A JP5101691B2 (ja) | 2008-04-14 | 2008-04-14 | 情報表示装置、位置算出装置、表示制御方法、位置算出方法、表示制御プログラム、位置算出プログラムおよび記録媒体 |
| PCT/JP2008/057304 WO2009128137A1 (ja) | 2008-04-14 | 2008-04-14 | 情報表示装置、位置算出装置、表示制御方法、位置算出方法、表示制御プログラム、位置算出プログラムおよび記録媒体 |
| US12/937,574 US20110037621A1 (en) | 2008-04-14 | 2008-04-14 | Information display apparatus, position calculation apparatus, display control method, position calculation method, display control program, position calculation program, and recording medium |
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| PCT/JP2008/057304 WO2009128137A1 (ja) | 2008-04-14 | 2008-04-14 | 情報表示装置、位置算出装置、表示制御方法、位置算出方法、表示制御プログラム、位置算出プログラムおよび記録媒体 |
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| JP2003279361A (ja) * | 2002-03-26 | 2003-10-02 | Clarion Co Ltd | カーナビゲーションシステム及び方法並びにナビゲーション用プログラム |
| JP2004138430A (ja) * | 2002-10-16 | 2004-05-13 | Aisin Aw Co Ltd | 車載装置 |
| JP2007127439A (ja) * | 2005-11-01 | 2007-05-24 | Xanavi Informatics Corp | ナビゲーション装置 |
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| JP2011187048A (ja) * | 2010-03-09 | 2011-09-22 | General Electric Co <Ge> | 電気自動車及びハイブリッド車の動作システム及び方法 |
| WO2017114115A1 (zh) * | 2015-12-29 | 2017-07-06 | 腾讯科技(深圳)有限公司 | 一种车辆诊断系统的数据处理方法、装置和系统 |
| US10636228B2 (en) | 2015-12-29 | 2020-04-28 | Tencent Technology (Shenzhen) Company Limited | Method, device, and system for processing vehicle diagnosis and information |
| JP2022080469A (ja) * | 2020-11-18 | 2022-05-30 | 大井電気株式会社 | 入退場判定装置および物体追跡装置 |
| JP7361012B2 (ja) | 2020-11-18 | 2023-10-13 | 大井電気株式会社 | 入退場判定装置 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPWO2009128137A1 (ja) | 2011-08-04 |
| JP5101691B2 (ja) | 2012-12-19 |
| US20110037621A1 (en) | 2011-02-17 |
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