JP2004125479A - Vehicular travel support device, and providing method for vehicular travel support service - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a more high performance vehicular travel support service system by using a quasi-zenith satellite along with a GPS satellite. <P>SOLUTION: Present position information of a vehicle acquired from the GPS satellite, and dynamic information affecting vehicular travel such as a traffic jam, traffic control due to an accident or weather, and signal control acquired from the quasi-zenith satellite are acquired by a terminal device mounted on a vehicle. Travel support information is determined by carrying out calculation of the pieces of information and other pieces of information stored in the terminal device by an instruction of an input part of the terminal device, and it is displayed in a display. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for providing a vehicle driving support service and a vehicle driving support system that uses the service.
[0002]
[Prior art]
A device shown in Patent Document 1 has been proposed as a conventional device of this type. This is to display various kinds of driving support information centering on the reachable range of a vehicle in a vehicle-mounted navigation device that searches for a route of a vehicle based on map information using GPS.
[0003]
[Patent Document 1]
JP-A-7-55484
[0004]
[Problems to be solved by the invention]
The above-described conventional apparatus requires an FM multiplex receiver, a beacon receiver, and the like for obtaining various information in addition to the GPS receiver, so that not only the configuration becomes complicated, but also the FM receiver and the beacon receiver have a limited reception area. Therefore, there is a problem that it is difficult to obtain stable, high-quality, and wide-range information.
[0005]
SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and it is an object of the present invention to provide a higher-performance vehicle driving support service system using a quasi-zenith satellite together with a GPS satellite.
[0006]
[Means for Solving the Problems]
In the vehicle driving support device according to the present invention, a map information recording unit that records map information, a destination input unit that inputs a destination of the vehicle, and a GPS receiving unit that receives a GPS signal from a GPS positioning satellite. A first quasi-zenith receiving unit that receives, as dynamic information, information about items that affect the traveling of the vehicle transmitted from the quasi-zenith satellite using the first frequency band via a first antenna, A second quasi-zenith satellite receives differential GPS correction information transmitted using a second frequency band different from the first frequency band via a second antenna different from the first antenna. A zenith receiver, and a current position of the vehicle based on the GPS signal received by the GPS receiver and the differential GPS correction information received by the second quasi-zenith receiver A current position calculation unit for calculating, and the target position calculated from the current position calculated by the position calculation unit based on the map information recorded in the map information recording unit and the dynamic information received by the first quasi-zenith receiving unit. A route calculation unit configured to calculate a recommended route to the destination input by the ground input unit; and a video output unit configured to display a recommended route calculated by the route calculation unit on a screen.
[0007]
Further, in the vehicle driving support device according to the present invention, the second quasi-zenith receiving unit receives the second frequency band more than the first frequency band received by the first quasi-zenith receiving unit. Make the wavelength longer.
[0008]
Further, in the vehicle driving support device according to the present invention, the first frequency band received by the first quasi-zenith receiving unit is an X band, a Ku band, a K band, or a Ka band, and the second quasi-zenith is used. The second frequency band received by the receiving unit is an L band, an S band, or a C band.
[0009]
Further, in the vehicle driving support device according to the present invention, the GPS receiving unit receives a GPS signal from a GPS positioning satellite via the second antenna.
[0010]
In the method for providing a vehicle driving support service according to the present invention, the quasi-zenith satellite transmits dynamic information on items that affect the driving of the vehicle using the first frequency band, and transmits the dynamic information from the zenith satellite. The differential GPS correction information is transmitted using a second frequency band having a longer wavelength than the first frequency band.
[0011]
Also, in the vehicle travel support device according to the present invention, a map information recording unit that records map information, a fuel efficiency information storage unit that stores a relationship between a running state of the vehicle and fuel consumption as fuel efficiency information, A destination input unit for inputting a place, a GPS receiving unit for receiving a GPS signal from a GPS positioning satellite, and a quasi-zenith reception for receiving, as dynamic information, information on items affecting the running of the vehicle from the quasi-zenith satellite Unit, a current position calculating unit that calculates a current position of the vehicle based on the GPS signal received by the GPS receiving unit, and map information recorded in the map information recording unit and received by the quasi-zenith receiving unit. A route calculation unit that calculates a recommended route from the current position to the destination based on the obtained dynamic information; and a map information recorded in the map information recording unit and / or the quasi-zenith reception. The driving condition on the recommended route is predicted based on the dynamic information received by the unit, and the fuel consumption information stored in the fuel consumption information storage unit is a fuel consumption amount to the destination based on the predicted driving condition. A fuel consumption calculation unit that calculates the fuel consumption calculated by the fuel consumption calculation unit or a fuel cost corresponding to the fuel consumption, and a recommended route calculated by the route calculation unit. A video output unit.
[0012]
Also, in the vehicle travel support device according to the present invention, a map information recording unit that records map information, a fuel efficiency information storage unit that stores a relationship between a running state of the vehicle and fuel consumption as fuel efficiency information, A destination input unit for inputting a place, a GPS receiving unit for receiving a GPS signal from a GPS positioning satellite, and a quasi-zenith reception for receiving, as dynamic information, information on items affecting the running of the vehicle from the quasi-zenith satellite Unit, a current position calculating unit that calculates a current position of the vehicle based on the GPS signal received by the GPS receiving unit, map information recorded in the map information recording unit, received by the quasi-zenith receiving unit The current position based on the obtained dynamic information and the fuel consumption to the destination in a driving state to the destination predicted based on the map information and / or the dynamic information. From comprises a path calculation unit for calculating a recommended route to the destination, and an image output unit for displaying the recommended route calculated by the route calculation unit on the screen.
[0013]
Further, in the vehicle driving support device according to the present invention, the fuel consumption from the departure place to the current location or the fuel cost corresponding to the fuel consumption is calculated based on the actual traveling state from the departure place to the current location and the fuel consumption information storage unit. Is calculated based on the fuel efficiency information stored in the storage device, and the calculation result is displayed on the screen.
[0014]
Further, in the vehicle driving support device according to the present invention, the fuel efficiency information stored in the fuel efficiency information storage unit is a relationship between a traveling speed of the vehicle and a fuel consumption, and a prediction of a traveling state based on the map information is performed. For traveling on an ordinary road, traveling at a first traveling speed previously associated with the ordinary road is predicted, and for traveling on an expressway, a second traveling associated with the expressway in advance is predicted. The traveling based on the speed is predicted, and the traveling state prediction based on the dynamic information is based on the actual measured speed or the predicted speed on each road obtained from the dynamic information.
[0015]
Further, in the vehicle travel support device according to the present invention, the prediction of the traveling state based on the map information is a prediction that the vehicle travels at the recommended speed for economical traveling, and the vehicle exceeds the recommended speed for a predetermined time. If the vehicle travels for more than an hour, a warning sound is issued to the driver.
[0016]
Further, in the vehicle driving support device according to the present invention, a map information recording unit for recording map information, a destination input unit for inputting a destination of the vehicle, and a GPS receiving unit for receiving a GPS signal from a GPS positioning satellite. Unit, a quasi-zenith receiving unit that receives, as dynamic information, information on matters affecting the traveling of the vehicle from the quasi-zenith satellite, and a current position of the vehicle based on the GPS signal received by the GPS receiving unit. A current position calculating unit for calculating, and a recommended route from the current position to the destination based on the map information recorded in the map information recording unit and the dynamic information received by the quasi-zenith receiving unit. A route calculation unit that calculates the required time to the destination on the route and the taxi fee, and a video output that displays the calculated recommended route, the required time, and the taxi fee on the screen. Provided with a door.
[0017]
Further, in the vehicle travel support device according to the present invention, the route calculation unit calculates a plurality of recommended routes and a required time and a taxi fee for each of the recommended routes, and the video output unit differs from the recommended route. By displaying the time required for the recommended route and the taxi fare, the passenger is allowed to select a taxi travel route.
[0018]
Further, in the method for providing a vehicle driving support service according to the present invention, in the method for providing a vehicle driving support service for transmitting information on items affecting the driving of the vehicle from the quasi-zenith satellite to the vehicle driving support device as dynamic information. The receiver receives the position of the vehicle and the time at that point in time from the in-vehicle device, the arithmetic device outputs information generated based on the received information as the dynamic information, and the transmitter outputs the information. The dynamic information is transmitted to the vehicle support device via the quasi-zenith satellite, and the storage device is provided with a predetermined service discount for the information provider by the in-vehicle device, the provision of gold goods or the exchange of points with goods. The provision is stored as information provision reward information.
[0019]
Still further, in the method for providing a vehicle driving support service according to the present invention, the arithmetic unit responds to the information provider when an input is made that the information provider has complained about the information. Delete or invalidate the information provision reward information stored in the storage means.
[0020]
BEST MODE FOR CARRYING OUT THE INVENTION
Embodiment 1 FIG.
FIG. 1 is an explanatory diagram illustrating a vehicle driving support service system according to Embodiment 1 of the present invention. In the present invention, information (dynamic information) on matters affecting the running of the vehicle is transmitted from the quasi-zenith satellite to the vehicle. Similarly, differential GPS correction information (GPS positioning correction information, D-GPS information) is transmitted from the quasi-zenith satellite to a vehicle equipped with a GPS device. As a result, the information can be distributed over a wider area than a conventional method of transmitting such information using FM multiplex broadcasting or the like. In addition, since the quasi-zenith satellite is located at a high latitude above Japan, there is an advantage that information distributed from the zenith satellite easily reaches a vehicle without being interrupted even between buildings in an urban area. Here, the dynamic information is, for example, information related to the position of a traffic jam.
[0021]
In the present embodiment, the dynamic information and the GPS correction signal are transmitted in different frequency bands. In particular, the GPS correction signal is transmitted in a frequency band having a longer wavelength than the dynamic information.
[0022]
The GPS correction signal is used to improve the position detection accuracy of a vehicle. In recent years, various studies (such as research on automatic driving of a vehicle) have been made on the premise of improving the position detection accuracy. On the other hand, when the GPS correction signal is transmitted from the quasi-zenith satellite as in the present invention, the GPS correction signal cannot be received when the vehicle enters under a street tree or viaduct, and the position detection accuracy may be reduced. . Considering that various services will be provided on the premise of improving the accuracy of position detection in the future, such a situation should be avoided as much as possible. Such a problem can be solved by making the transmission frequency band of the GPS correction signal as long as possible. This is because a signal having a long wavelength has a characteristic that it has low straightness and is not blocked by some obstacles. However, frequency resources are limited, and frequency bands with longer wavelengths are more valuable. Therefore, when transmitting both the dynamic information and the GPS correction signal from the quasi-zenith satellite, it is difficult to transmit both information in a frequency band with a short wavelength. Therefore, in the present invention, these dynamic signals are transmitted in a frequency band having a short wavelength such as X band, Ku band, K band or Ka band, and the GPS correction signal is transmitted in a wavelength band such as L band, S band or C band. Transmit at long frequencies. As a result, in transmitting dynamic information and a GPS correction signal from the quasi-zenith satellite, it is possible to suppress failure in receiving the GPS correction signal under a viaduct or the like while effectively using limited frequency resources. When the GPS correction signal is transmitted in the S band, the L band, or the like, the correction signal can be received by, for example, a patch antenna or the like. When the dynamic signal is transmitted in the Ku band, the dynamic signal is transmitted in a phased array. It can be received by an antenna or the like.
[0023]
FIG. 2 is a block diagram illustrating a terminal device used in the vehicle driving support service system shown in FIG. In the drawing, 8 is a storage device for recording various information such as map information, 2 is an input unit for inputting a destination of a vehicle, etc., 11 is a GPS signal from a GPS positioning satellite via a third antenna 11 The first GPS receiver 41 receives the dynamic information transmitted from the quasi-zenith satellite via the first antenna 43 using the first frequency band, and the first dynamic receiver 41a receives the received dynamic information. A storage unit for storing and storing information; a second quasi-zenith receiver for receiving differential GPS correction information transmitted from the quasi-zenith satellite via the second antenna using the second frequency band; The current position of the vehicle is calculated based on the GPS signal received by the GPS receiver 11 and the differential GPS correction information received by the second quasi-zenith receiver 44, The ECU 71 calculates a recommended route from the current position to the destination input by the input unit 2 based on the map information recorded in the storage device 8 and the dynamic information received by the first quasi-zenith receiver 41. An image output unit that displays the route calculated by the ECU 3 on the display 7, and a speaker 9 that outputs audio guidance and the like of the route calculated by the ECU 3. Here, the first antenna is, for example, a patch antenna for receiving the S band or the L band, and the second antenna is, for example, a phased array antenna for receiving the Ku band.
[0024]
As described above, when receiving the dynamic information and the GPS correction signal from the quasi-zenith satellite, the dynamic information and the GPS correction signal are received via different antennas, and the GPS correction signal is received in a longer frequency band than the dynamic information. Therefore, it is possible to suppress reception failure of the GPS correction signal under a viaduct or the like while effectively using limited frequency resources.
[0025]
FIG. 3 is a block diagram showing another example of the terminal device used in the vehicle driving support service system shown in FIG. FIG. 3 is the same as FIG. 2 except that the GPS correction information and the GPS signal are received via the same antenna 44. As described above, when the dynamic information and the GPS correction information are received through different antennas, the GPS correction information and the GPS signal are received through the same antenna. An effect similar to that of the terminal shown in FIG. 2 can be obtained.
Embodiment 2 FIG.
FIG. 4 is a block diagram showing a configuration of a terminal device used in the vehicle driving support service system according to Embodiment 2 of the present invention. The terminal device is mounted on a vehicle using the service system. This device includes a GPS receiver 1, an input unit 2, an ECU (electronic control unit) 3, a quasi-zenith receiver 4 having a storage unit 4a, a drawing data processing unit 5, a V-RAM 6, a display 7, a storage device 8, and a speaker 9 Consists of
[0026]
The GSP receiver 1 receives a radio wave from a GSP satellite in a satellite orbit and supplies it to the ECU 3. The ECU 3 receives the signal from the GSP receiver 1, calculates the latitude and longitude of the current position of the vehicle, detects the position of the vehicle on the map information stored in the storage device 8, And display on the display 7 via the V-RAM 6.
[0027]
The quasi-zenith receiver 4 receives a signal from a quasi-zenith satellite, and sometimes receives all kinds of dynamic information related to vehicle driving support, such as traffic congestion (section, time), traffic regulation information due to an accident or weather, and signal control status. The constantly changing information is received from the quasi-zenith satellite, stored in the internal storage unit 4a, and supplied to the ECU 3. The ECU 3 processes a signal from the GPS receiver 1, a signal from the quasi-zenith receiver 4, and information from the storage device 8 according to an input command from the input unit 2, and outputs the processed signal via the drawing data processing unit 5 and the V-RAM 6. To display the driving support information on the display 7.
[0028]
FIG. 5 illustrates a vehicle driving support service (1) using the terminal device. This service guides the vehicle to travel from the current location D0 to the destination D1 at the recommended speed at which the most economical travel is performed, and at the same time, the destination under the travel conditions based on traffic congestion information, traffic regulation information, and signal control information. This is a service that informs the driver of the time required until D1 and the fuel cost (gasoline fee). Currently, the recommended speed for the most economical driving is 40 km / h on a general road and 80 km / h on a highway. Give a message to the driver.
[0029]
When the driver of the vehicle inputs the destination and the service (1) from the input unit 2, the ECU 3 obtains the current position obtained from the GPS receiver 1 and the traffic congestion obtained from the quasi-zenith receiver 4 and stored in the storage unit 4a. Calculations are performed based on dynamic information such as traffic regulations and signal control due to accidents and weather, the price of gasoline stored in the storage device 8, and the like, at the recommended speed traveling from the current location D0 or the departure location to the destination D1. Based on the required time and the fuel cost (gasoline cost), the required time and fuel cost of a plurality of routes required at the traveling speed predicted from the current traveling conditions are obtained and displayed on the display 7 in the form of FIG. I do.
[0030]
The driver inputs a desired course number from the displayed plurality of routes (courses 1 to 3) and the display of the time and cost (gasoline fee) required for each route. The route from D0 to the destination D1 is displayed, and guidance according to this course can be received. At the same time, if the vehicle continues to deviate from the economical recommended speed for a certain period of time or more, a message prompting the recommended speed is emitted from the speaker 9 to notify the driver.
[0031]
It is well known that the gasoline consumption of a vehicle varies greatly depending on the traveling speed even if it travels the same distance.However, in the past, this viewpoint was overlooked, and the driver was restricted by traffic restrictions if there were any It was often the case that they were able to travel freely at economical speeds. In the present embodiment, by obtaining and using information from the quasi-zenith satellite on the basis of the recommended speed of the economical driving described above, for a traffic congested road, a time corresponding to the driving speed during the traffic congestion is used. And the fuel cost are calculated from the quasi-zenith satellite and the signal control information is obtained from the quasi-zenith satellite. By doing so, more fine-grained traveling management can be performed.
[0032]
The dynamic information obtained on the vehicle side is provided by a service provider of this system via a quasi-zenith satellite. There are two methods for processing this dynamic information. One is that the service provider that broadcasts dynamic information to the quasi-zenith satellite broadcasts all information such as traffic congestion information, regulation information, signal information, etc., and selects only its own area on the vehicle terminal device side. Rewrite information.
[0033]
In another processing method, the service provider broadcasts only change information such as a change in traffic congestion information, a change in regulation information, a change in signal information, and the like, and the terminal device of the vehicle rewrites all information.
[0034]
In the above description, the display on the display is the required time and the fuel cost. However, instead of the fuel cost, the cost may be displayed as a cost including a fuel cost plus a high-speed fee. In this case, the ECU performs the calculation with reference to the high-speed fee stored in the storage device.
[0035]
In the present embodiment, since information is obtained from the quasi-zenith satellite by the quasi-zenith receiver, the conventional three information sources, that is, the optical / radio beacon and the FM broadcast can be integrally managed as one, and the terminal device can be downsized. . In particular, the cost of the terminal device can be reduced by not using the FM multiplex receiver or the beacon receiver unlike the conventional device. In the past, information could only be obtained on major roads, but information can be obtained anywhere in Japan.
[0036]
FIG. 6 illustrates a vehicle driving support service (2) using the terminal device. When the driver of the car inputs the destination D1, the desired transit point (refueling station, resting place, scenic spot, etc.) D2 and the service (2) from the input unit 2, the current location or the departure location D0 is the same as the service (1). A plurality of routes from to the destination D1 and the time and cost (high-speed toll, gasoline fee, etc.) required for each route are displayed on the display 7 in the same manner as in FIG. The driver inputs a desired course number from the display shown in this figure, whereby the display shown in FIG. 6 is made on the display 7, and guidance according to this course can be received.
[0037]
FIG. 7 illustrates a vehicle driving support service (3) using the terminal device. In the service (3), the terminal device shown in FIG. 4 is mounted on a taxi. When the passenger tells the taxi driver the destination, the driver inputs the destination and the service (3) from the input unit 2. The ECU 3 stores the positional information obtained from the GPS receiver 1 and the traffic information obtained from the quasi-zenith receiver 4 and stored in the storage unit 4a such as traffic congestion, traffic control due to an accident or weather, dynamic information such as signal control, and the like. Based on information such as taxi fares, high-speed tolls, gasoline prices, etc., the time required for each route (courses 1 to 3) under current traffic conditions and the taxi fee are based on the case of driving at an economical driving speed. Is displayed on the display 7 in the form of FIG. Passengers will tell the taxi driver the desired course number and pay the taxi fare in advance. This allows passengers to know the required time and taxi fare in advance and receive a service that allows them to use the taxi with peace of mind.
[0038]
In the conventional technology, a destination is transmitted from a taxi to a service center in an area where a wireless connection is established, and the center calculates the cost and transmits the cost to the taxi. Therefore, the conventional technology can be used only in a wireless area. According to this embodiment, the position obtained by the GPS satellite and the latest information from the quasi-zenith satellite are obtained by broadcasting, and the required time and fee are calculated in the taxi equipped with the terminal device, so that it can be used anywhere in Japan. It is.
[0039]
FIG. 8 illustrates a vehicle driving support service (4) using the terminal device. When the driver of the vehicle inputs the destination and the service (4) from the input unit 2, the ECU 3 obtains the current position information obtained from the GPS receiver 1, the traffic congestion obtained from the quasi-zenith receiver 4 and stored in the storage unit 4a, Based on dynamic information such as traffic regulations and signal control due to accidents and weather, and information such as high-speed tolls and gasoline prices stored in the storage device 8, as shown in FIG. The elapsed time up to the value D3 and the cost (fuel cost, toll, etc.) are displayed on the display 7. The driver can manage the traveling based on this display.
[0040]
Embodiment 3 FIG.
In the third embodiment, an actual measurement value can be used as the dynamic information acquired from the quasi-zenith satellite in the second embodiment. In the second embodiment, the quasi-zenith receiver receives the dynamic information sent from the road service provider via the quasi-zenith satellite, calculates the travel time, costs, and displays the travel time. The third embodiment attempts to use the.
[0041]
FIG. 9 shows an outline of the system. In FIG. 9, a vehicle 100 as a user of this service exchanges information with a service provider 300 via a quasi-zenith satellite 200. FIG. 10 shows a terminal device mounted on the vehicle 100. In this terminal device, a quasi-zenith transceiver 10 is mounted in addition to the elements shown in FIG. The service provider 300 polls each vehicle, and the terminal device of each vehicle uses the quasi-zenith transceiver 10 via the quasi-zenith satellite 200 at the time of polling from the service provider 300 that provides dynamic information. The current position of the vehicle is transmitted to the service provider 300. The service provider 300 records the obtained vehicle positions, determines that there is little traffic change in a plurality of vehicles on the same road, determines that the traffic is congested, and broadcasts the information as new dynamic information via the quasi-zenith satellite 200. I do. The user 100 on the vehicle side can receive a service based on the latest dynamic information broadcast from the service provider 300.
[0042]
In order to grasp the current road condition, in addition to the above, when the vehicle itself recognizes that there is traffic congestion when traveling at a low speed, and responds to polling from the service provider 300, the information of "congested" May be sent to the service provider 300 by the quasi-zenith transceiver 10.
[0043]
Further, when there are many vehicles that stop at the place where the traffic light is located, the service provider 300 side determines that the route is continued with the red light, and uses the new information as new information.
[0044]
Embodiment 4 FIG.
FIG. 11 shows a fourth embodiment in which a quasi-zenith satellite is used for improving the positioning accuracy. In the normal positioning, the vehicle 100 receives the radio waves of the three GPS satellites 400a, 400b, and 400c to determine the position. In the fourth embodiment, as shown in FIG. This improves the positioning accuracy in addition to the signal from
[0045]
Embodiment 5 FIG.
FIG. 12 shows Embodiment 5 in which a geostationary satellite is used for improving positioning accuracy. In the normal positioning, the vehicle 100 receives the radio waves of the three GPS satellites 400a, 400b, and 400c to determine the position. In the present embodiment, as shown in FIG. The positioning accuracy is improved in addition to the signal.
[0046]
Embodiment 6 FIG.
FIG. 13 shows a sixth embodiment in which a quasi-zenith satellite or a geostationary satellite is used for improving positioning accuracy. As shown in FIG. The information reaches 100.
[0047]
Embodiment 7 FIG.
In the present embodiment, in the present system, when correct dynamic information is provided from the vehicle side (user), the service fee is discounted for the user. The vehicle is equipped with a terminal device including a personal computer 11 shown in FIG. The personal computer 11 also functions as an input unit and a display of the terminal device shown in FIG. This terminal device has the same configuration as that of FIG. 4 except that the terminal device is provided with a personal computer 11, and the same components are denoted by the same reference numerals and description thereof is omitted.
[0048]
FIG. 15 shows the screen of the personal computer 11 of the terminal device mounted on the vehicle. The current position of the vehicle on the displayed map is designated by a location 50 and clicked. The transmission button 70 is clicked and transmitted to the service provider 300. The service provider 300 broadcasts this information as the latest dynamic information via the quasi-zenith satellite, and if there is no complaint, the information is regarded as correct and the service charge discount is given to the vehicle-side information providing user. I do.
[0049]
The vehicle (user) 100 provides information to the service provider 300 by a method of transmitting information from a personal computer via a ground network 700 as shown in FIG. 16 and a method of transmitting information from a personal computer via a portable network 800 as shown in FIG. A method is conceivable, in which the signal is transmitted via the quasi-zenith transceiver 10 similar to that shown in FIG.
[0050]
According to this service, information can be obtained in real time, and at the same time, an information provider can enjoy the advantage of discounting service charges anywhere in Japan.
[0051]
【The invention's effect】
As described above, according to the vehicle driving support service system of the present invention, the dynamic information necessary for the vehicle driving service is acquired using the quasi-zenith satellite, so that the information coverage is extremely wide. Therefore, the latest information can be obtained in a wide area in Japan, and the service to customers can be improved.
[0052]
In addition, a system with higher accuracy and reliability can be obtained by using measured value information as dynamic information.
[0053]
In addition, accuracy and reliability can be improved as compared with the case where the position of the vehicle is measured only by GPS, and reliability and convenience of the driving support information can be improved.
[Brief description of the drawings]
FIG. 1 is a diagram schematically showing a vehicle driving support service system according to Embodiment 1 of the present invention.
FIG. 2 is a block diagram showing a terminal device of the vehicle driving support service system according to Embodiment 1 of the present invention.
FIG. 3 is a block diagram showing another terminal device of the vehicle driving support service system according to the first embodiment of the present invention.
FIG. 4 is a block diagram showing a terminal device of a vehicle driving support service system according to Embodiment 2 of the present invention.
FIG. 5 is a display display of a service (1) according to the second embodiment.
FIG. 6 is a display display of a service (2) according to the second embodiment.
FIG. 7 is a display display of a service (3) according to the second embodiment.
FIG. 8 is a display display of a service (4) according to the second embodiment.
FIG. 9 is a diagram showing an outline of a vehicle driving support service system according to Embodiment 3 of the present invention.
FIG. 10 is a block diagram showing a terminal device of a vehicle driving support service system according to Embodiment 3.
FIG. 11 is a diagram showing an outline of a vehicle driving support service system according to Embodiment 4 of the present invention.
FIG. 12 is a diagram showing an outline of a vehicle driving support service system according to Embodiment 5 of the present invention.
FIG. 13 is a diagram showing an outline of a vehicle driving support service system according to Embodiment 6 of the present invention.
FIG. 14 is a block diagram showing a terminal device of a vehicle driving support service system according to Embodiment 7 of the present invention.
FIG. 15 is a diagram showing an input screen according to the seventh embodiment.
FIG. 16 is a diagram illustrating an information transmission method according to a seventh embodiment.
FIG. 17 is a diagram illustrating another example of the information transmission method according to the seventh embodiment.
[Explanation of symbols]
1 GPS receiver, 2 input unit,
3 ECU, 4 Quasi-zenith receiver,
4a storage unit, 5 drawing data processing unit,
6 V-RAM, 7 display,
8 storage devices, 9 speakers,
10 Quasi-Zenith transceiver, 11 PC,
50 Place designation, 60 Status column,
70 send button, 100 vehicle (user),
200 QZSS, 300 service providers,
400a GPS satellite, 400b GPS satellite,
400c GPS satellite, 500 geostationary satellite,
600 gap filler.

Claims (14)

A map information recording unit for recording map information;
A destination input unit for inputting a destination of the vehicle;
A GPS receiving unit that receives a GPS signal from a GPS positioning satellite;
A first quasi-zenith receiving unit that receives, as dynamic information, information from a quasi-zenith satellite transmitted from the quasi-zenith satellite using the first frequency band and that relates to the traveling of the vehicle via the first antenna;
A second GPS receiving differential GPS correction information transmitted from the quasi-zenith satellite using a second frequency band different from the first frequency band via a second antenna different from the first antenna; Quasi-zenith receiver,
A current position calculating unit that calculates a current position of the vehicle based on the GPS signal received by the GPS receiving unit and the differential GPS correction information received by the second quasi-zenith receiving unit;
Based on the map information recorded in the map information recording unit and the dynamic information received by the first quasi-zenith receiving unit, the destination input by the destination input unit from the current position calculated by the position calculation unit A route calculation unit for calculating a recommended route to the ground,
A video output unit for displaying a recommended route calculated by the route calculation unit on a screen. The wavelength of the second frequency band received by the second quasi-zenith receiving unit is longer than that of the first frequency band received by the first quasi-zenith receiving unit. The vehicle driving support device according to claim 1. The first frequency band received by the first quasi-zenith receiving unit is an X band, a Ku band, a K band, or a Ka band, and the second frequency band received by the second quasi-zenith receiving unit is The vehicle driving support device according to claim 2, wherein the device is an L band, an S band, or a C band. The vehicle driving support device according to any one of claims 1 to 3, wherein the GPS receiving unit receives a GPS signal from a GPS positioning satellite via the second antenna. Using the first frequency band from the quasi-zenith satellite to transmit dynamic information on matters affecting the traveling of the vehicle, and from the zenith satellite to a second frequency band having a longer wavelength than the first frequency band A method for providing a vehicle driving support service, wherein differential GPS correction information is transmitted by using a GPS. A map information recording unit for recording map information;
A fuel efficiency information storage unit that stores a relationship between the running state of the vehicle and the fuel consumption amount as fuel efficiency information,
A destination input unit for inputting a destination of the vehicle;
A GPS receiving unit that receives a GPS signal from a GPS positioning satellite;
A quasi-zenith receiving unit that receives, as dynamic information, information on items that affect the running of the vehicle from the quasi-zenith satellite,
A current position calculating unit that calculates a current position of the vehicle based on the GPS signal received by the GPS receiving unit;
A route calculation unit that calculates a recommended route from the current position to the destination based on the map information recorded in the map information recording unit and the dynamic information received by the quasi-zenith receiving unit,
Based on the map information recorded in the map information recording unit and / or the dynamic information received by the quasi-zenith receiving unit, a traveling state on the recommended route is predicted, and the destination based on the predicted traveling state is predicted. A fuel consumption calculating unit that calculates the fuel consumption up to the fuel consumption information stored in the fuel consumption information storage unit,
A fuel consumption calculated by the fuel consumption calculation unit or a fuel cost corresponding to the fuel consumption, and a video output unit for displaying a recommended route calculated by the route calculation unit on a screen. Vehicle running support device. A map information recording unit for recording map information;
A fuel efficiency information storage unit that stores a relationship between the running state of the vehicle and the fuel consumption amount as fuel efficiency information,
A destination input unit for inputting a destination of the vehicle;
A GPS receiving unit that receives a GPS signal from a GPS positioning satellite;
A quasi-zenith receiving unit that receives, as dynamic information, information on items that affect the running of the vehicle from the quasi-zenith satellite,
A current position calculating unit that calculates a current position of the vehicle based on the GPS signal received by the GPS receiving unit;
The map information recorded in the map information recording unit, the dynamic information received by the quasi-zenith receiving unit, and the travel state to the destination predicted based on the map information and / or the dynamic information A route calculation unit that calculates a recommended route from the current position to the destination based on a fuel consumption amount to the destination;
A video output unit for displaying a recommended route calculated by the route calculation unit on a screen. The fuel consumption from the departure place to the current location or the fuel cost corresponding to the fuel consumption is calculated based on the actual traveling state from the departure place to the current location and the fuel efficiency information stored in the fuel efficiency information storage unit, and the calculation result is obtained. 8. The vehicle driving support device according to claim 6, wherein is displayed on the screen. The fuel efficiency information stored in the fuel efficiency information storage unit is a relationship between the traveling speed of the vehicle and the fuel consumption,
The traveling state prediction based on the map information predicts traveling at a first traveling speed previously associated with the general road for traveling on a general road, and predicts traveling at a first traveling speed for an expressway. Predicting travel at a second travel speed previously associated with the vehicle, and predicting a travel state based on the dynamic information predicts travel at an actual measured speed or a predicted speed on each road obtained from the dynamic information. The vehicle driving support device according to any one of claims 6 to 8, wherein The prediction of the traveling state based on the map information is a prediction that the vehicle travels at the recommended speed for economical traveling, and when the vehicle travels for more than a predetermined time beyond the recommended speed, a sound is given to the driver. The vehicle driving support device according to any one of claims 6 to 9, wherein the warning is issued by the following. A map information recording unit for recording map information;
A destination input unit for inputting a destination of the vehicle;
A GPS receiving unit that receives a GPS signal from a GPS positioning satellite;
A quasi-zenith receiving unit that receives, as dynamic information, information on items that affect the running of the vehicle from the quasi-zenith satellite,
A current position calculating unit that calculates a current position of the vehicle based on the GPS signal received by the GPS receiving unit;
Based on the map information recorded in the map information recording unit and the dynamic information received by the quasi-zenith receiving unit, a recommended route from the current position to the destination, a required time from the recommended route to the destination. And a route calculation unit that calculates with the taxi fee,
And a video output unit for displaying the calculated recommended route, required time, and taxi fare on a screen. The route calculation unit calculates a plurality of recommended routes and a required time and a taxi fee for each of the recommended routes,
The video output unit displays a required time and a taxi fare for the different recommended routes, thereby allowing a passenger to select a taxi travel route. In a method for providing a vehicle driving support service that transmits information on items that affect the driving of a vehicle from a quasi-zenith satellite to a vehicle driving support device as dynamic information, a receiver detects a position of a vehicle from a vehicle-mounted device and a time at that time. Receiving the information, the arithmetic device outputs the information generated based on the received information as the dynamic information, and the transmitter transmits the dynamic information output by the arithmetic device to the vehicle support device via the quasi-zenith satellite. And a storage device stores, as information provision reward information, a predetermined service discount, a provision of a money item, or a provision of a point that can be exchanged for an article to the information provider by the in-vehicle device. To provide a vehicle driving support service. The arithmetic unit deletes or invalidates the information provision reward information stored in the storage unit corresponding to the information provider when an input indicating that there is a complaint about the information from the information provider is performed. The method for providing a vehicle driving support service according to claim 13, wherein:

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