JP2004170376A - Information indicating system, informer and program of information indicating method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To ensure the improvement in running property and also ensure comfortable running. <P>SOLUTION: The information indicating system has an information acquiring means which acquires traffic jam information, a course search means 92 which searches a course, a traffic jam predicting information calculating means 93 which calculates traffic jam predicting information based on the traffic jam information in the searched course, and an indicating means 94 which indicates in an indicating part, a route denoting the course and route evaluating information calculated based on the traffic jam predicting information. Since the traffic jam predicting information is calculated and the route evaluating information is indicated, the information on the route in consideration of the traffic jam can be obtained prior to running a vehicle. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to an information display system, an information provider, and an information display method program.
[0002]
[Prior art]
2. Description of the Related Art Conventionally, in a navigation device, for example, a current position of a vehicle, that is, a current position is detected by a GPS (global positioning system), and based on a rotational angular velocity of the vehicle, that is, a turning angle detected by a gyro sensor, The direction of the vehicle, that is, the direction of the host vehicle is detected, map data is read from the data recording unit, a map screen is formed on the display unit, and the current location, a map around the current location, and the host vehicle direction are displayed on the map screen. It is displayed. Therefore, the driver, who is the operator, can drive the vehicle according to the current location, the map around the current location, and the own vehicle direction displayed on the map screen.
[0003]
When the driver inputs a destination and sets search conditions, a route from the current position to the destination is searched based on the search conditions. Then, the searched route, that is, the searched route is displayed as a plurality of route candidates on a search result display screen formed on the display unit. When a route is selected, the selected route (hereinafter referred to as “selected route”) is displayed on the selected route display screen formed on the display unit together with the current location and the destination.
[0004]
Subsequently, the selected route is determined as a search route by an operation by the driver or automatically, and the search route is displayed on the map screen. Therefore, the driver can drive the vehicle according to the displayed search route.
[0005]
By the way, since the selected route, the current position and the destination are displayed on the selected route display screen, it is possible to know through which passing point the destination can be reached. To know how long it takes to do. Therefore, a time is calculated each time a preset travel time elapses from the departure point, a passing point at each time is calculated, a passing point is displayed on the selected route display screen, and a time passing through the passing point, that is, , The passing time is displayed (see Patent Document 1).
[0006]
[Patent Document 1]
JP 2000-207686 A
[0007]
[Problems to be solved by the invention]
However, in the conventional navigation device, for example, even if it is predicted that traffic congestion will occur on the search route, the passing time at each passing point is calculated and displayed without considering traffic congestion. Therefore, the displayed passing time does not match the passing time when the vehicle actually travels. Also, for example, by changing the departure time or selecting another route based on the passing time displayed on the selected route display screen, traffic jams can be avoided, and comfortable traveling cannot be performed.
[0008]
The present invention solves the problem of the conventional navigation device, and can obtain information on a route in which traffic congestion is considered before driving a vehicle, and an information display system capable of performing comfortable driving. An object of the present invention is to provide a program for a provider and an information display method.
[0009]
[Means for Solving the Problems]
Therefore, in the information display system of the present invention, information acquisition processing means for acquiring traffic congestion information, route search processing means for searching for a route from a departure place to a destination, and information based on traffic congestion information on the searched route A traffic congestion prediction information calculation processing means for calculating traffic congestion prediction information; and a display processing means for displaying a route representing the route and route evaluation information calculated based on the traffic congestion prediction information on a display unit.
[0010]
In another information display system according to the present invention, the traffic congestion information is traffic information representing a current traffic congestion condition and statistical data calculated based on a traffic congestion history.
[0011]
In still another information display system of the present invention, the route search processing means searches for a route based on the departure place, the destination, and the departure time zone.
[0012]
In still another information display system of the present invention, the route displayed on the display unit is a selected route selected from a plurality of route candidates.
[0013]
In still another information display system of the present invention, the congestion prediction information calculation processing means calculates congestion prediction information in a departure time zone.
[0014]
In still another information display system according to the present invention, the traffic congestion prediction information calculation processing means calculates traffic congestion prediction information at a passing time when the vehicle passes a passing point on the route.
[0015]
According to the information provider of the present invention, information acquisition processing means for acquiring congestion information, route search processing means for searching for a route from a departure point to a destination, and traffic congestion information based on the congested information on the searched route. A traffic congestion prediction information calculation processing means for calculating prediction information, and a transmission processing means for transmitting a route representing the route and route evaluation information calculated based on the traffic congestion prediction information to the information terminal.
[0016]
In the program of the information display method according to the present invention, the computer is configured based on information acquisition processing means for acquiring traffic congestion information, route search processing means for searching for a route from a departure place to a destination, and traffic congestion information on the searched route. The traffic congestion prediction information calculation processing means for calculating traffic congestion prediction information, and the display processing means for displaying the route representing the route and the route evaluation information calculated based on the traffic congestion prediction information on a display unit.
[0017]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
[0018]
FIG. 1 is a functional block diagram of the information display system according to the embodiment of the present invention.
[0019]
In the figure, reference numeral 91 denotes congestion information acquisition processing means as information acquisition processing means for acquiring congestion information; 92, route search processing means for searching for a route from a departure place to a destination; 93, traffic congestion on the searched route. A traffic congestion prediction information calculation processing means 94 for calculating traffic congestion prediction information based on the information is displayed on a display unit (not shown) which displays the route representing the route and the route evaluation information calculated based on the traffic congestion prediction information. Processing means.
[0020]
FIG. 2 is a diagram showing a navigation system according to the embodiment of the present invention.
[0021]
In the figure, reference numeral 14 denotes an information terminal, for example, a navigation device as an in-vehicle device mounted on a vehicle. The navigation device 14 includes a GPS sensor 15 as a current position detection unit for detecting a current position and the like, map data, road data, A data recording unit 16 as an information recording unit in which navigation information such as search data is recorded, functions as a computer based on various programs, data, and the like, and performs various arithmetic processes such as a navigation process based on input information. , A direction sensor 18 as a direction detection unit for detecting the direction of the vehicle, and an operation unit 34 as a first input unit for performing a predetermined input by operating a driver as an operator. Display as a first output unit for performing various displays based on images displayed on the screen and notifying the driver 35, a voice input unit 36 as a second input unit for performing a predetermined input by voice, a voice output unit 37 as a second output unit for performing various displays by voice and notifying the driver, A communication unit 38 as a transmission / reception unit functioning as a communication terminal is provided, and an operation unit 34, a display unit 35, a voice input unit 36, a voice output unit 37, and a communication unit 38 are connected to the navigation processing unit 17. Further, a vehicle speed sensor 41 as a vehicle speed detecting unit is also connected to the navigation processing unit 17.
[0022]
The GPS sensor 15 detects a current position on the earth by receiving radio waves generated by artificial satellites, and also detects time.
[0023]
Note that a distance sensor, a steering sensor, an altimeter, or the like can be used alone or in combination as the current position detection unit instead of the GPS sensor 15. The distance sensor detects the distance between predetermined points on a road, and calculates the distance based on the rotational speed of a wheel (not shown) or by integrating acceleration twice. The steering sensor detects a rudder angle, and is, for example, an optical rotation sensor attached to a rotating portion of a steering wheel (not shown), a rotation resistance sensor, an angle sensor attached to a wheel, and the like. Can be used.
[0024]
A gyro sensor, a geomagnetic sensor, or the like can be used as the direction sensor 18. As the gyro sensor, for example, a gas rate gyro, a vibration gyro, or the like is used, and detects the direction of the vehicle by integrating the turning angle. The terrestrial magnetism sensor detects the azimuth of the vehicle by measuring terrestrial magnetism.
[0025]
The data recording unit 16 includes a database including data files such as a map data file, an intersection data file, a node data file, a road data file, a search data file, a facility information data file, and the like. Data for outputting various images is recorded in 35. The data recording section 16 also records data for outputting predetermined information by the audio output section 37.
[0026]
For example, the map data file contains map data for displaying a map, the intersection data file contains intersection data about each intersection, the node data file contains node data about node points, and the road data file contains road data about roads. The search data file records search data for searching for a route, and the facility information data file records facility information data relating to various facilities. The intersection data, node data, road data, search data, etc. Road condition data representing the road condition is configured. The node data is composed of data indicating actual branch points (including intersections, T-shaped roads, etc.), node points, links between node points connecting the node points, and the like.
[0027]
According to the road data, for the road itself, width, slope, cant, bank, road surface condition, number of lanes of the road, places where the number of lanes decreases, places where the width decreases, etc. Curvature radius, intersections, T-shaped roads, corner entrances, etc., road attributes, downhill roads, uphill roads, etc., road types, general roads such as national roads, prefectural roads, narrow streets, expressways, urban expressways , Expressways and toll roads, respectively. Furthermore, the road data represents railroad crossings, attachment roads (ramp ways) at entrances and exits of expressways, tollgates on expressways and toll roads, and the like.
[0028]
Further, the facility information data represents facility information of facilities such as hotels, gas stations, parking lots, sightseeing spots, and department stores in each region.
[0029]
The navigation processing unit 17 includes a CPU 31 as an arithmetic device and a control device that performs overall control of the navigation device 14, and a DRAM as a first recording medium used as a working memory when the CPU 31 performs various arithmetic processes. , An SRAM, an MRAM, an FeRAM, and the like, and a ROM 33 as a second recording medium in which various programs for searching for a route to a destination, route guidance, and the like are recorded in addition to a control program. .
[0030]
A semiconductor memory, a magnetic core, or the like is used as an internal storage device such as the RAM 32 and the ROM 33. Further, a flash memory (not shown) as a third recording medium may be provided in the navigation processing unit 17 in addition to the RAM 32, the ROM 33, and the like. Then, an MPU or the like can be used instead of the CPU 31 as an arithmetic unit and a control unit.
[0031]
Further, the data recording unit 16 includes a magnetic disk such as a hard disk or a flexible disk (not shown) as a fourth recording medium provided as an external storage device in order to record the various data. And a head such as a read / write head (not shown) for reading and writing data. The data recording unit 16 also includes a fifth recording medium, such as a magnetic tape, a magnetic drum, a CD, an MD, a DVD, an optical disk, an MO, an IC card, an optical card, etc., which is also provided as an external storage device. It can also be set up.
[0032]
Then, various programs can be recorded in the ROM 33 and various data can be recorded in the data recording unit 16, but the programs and data can also be recorded in an external storage device, for example, a hard disk or the like. In this case, for example, the flash memory can be provided in the navigation processing unit 17, and the program, data, and the like can be read from the hard disk or the like and written to the flash memory. Therefore, the program, data, and the like can be updated by replacing the hard disk and the like. When an automatic transmission control device is mounted to control an automatic transmission (not shown) mounted on the vehicle, a program, data, and the like for controlling the automatic transmission control device are also stored in the hard disk or the like. Can be recorded. Further, the program, data, and the like can be received via the communication unit 38 and written to the flash memory.
[0033]
The operation unit 34 is operated by a driver to correct the current position at the start of traveling, to input a departure point and a destination, to input a passing point, and to operate the communication unit 38. And a keyboard, a mouse, a barcode reader, a light pen, a remote control device for remote operation, a joystick, etc., which are arranged independently of the display unit 35 can be used. Further, as the operation unit 34, a predetermined input operation is performed by touching or clicking an image operation unit such as various keys, switches, and buttons displayed as images on a screen formed on the display unit 35. Can be.
[0034]
Further, as the display unit 35, a display such as a CRT display, a liquid crystal display, and a plasma display can be used, or a hologram device that projects a hologram on a windshield of a vehicle can be used. Then, a current position, a map, a searched route, guidance information along the searched route, traffic information, and the like are displayed on a screen formed on the display unit 35, and a characteristic photograph at the intersection or the searched route, a frame diagram, and the like are displayed. In addition to displaying the distance to the next intersection and the traveling direction at the next intersection, it also displays operation guidance, operation menus, and key guidance for the image operation unit, operation unit 34, voice input unit 36, and the like. Or display FM multiplex broadcast programs and the like.
[0035]
The voice input unit 36 is configured by a microphone (not shown) or the like, and can input necessary information by voice. Further, the voice output unit 37 includes a voice synthesizer and a speaker (not shown), and the search route, guidance information, traffic congestion information, and the like are output from the voice output unit 37, for example, as voice synthesized by the voice synthesizer. . In addition to the voice synthesized by the voice synthesizer, it is also possible to output various sounds, various guidance information previously recorded on a tape, a memory, or the like.
[0036]
The communication unit 38 arranges various information transmitted from a road traffic information center such as a VICS (registered trademark: Vehicle Information and Communication System) center (not shown) as a first information provider along a road. A beacon receiver (not shown) for receiving as a radio beacon, an optical beacon or the like via a radio beacon device, an optical beacon, or the like, and an FM receiver (not shown) for receiving as an FM multiplex broadcast via an FM broadcast station. Prepare. The beacon receiver receives traffic information such as traffic congestion information, regulation information, parking lot information, traffic accident information, and congestion information of a service area, and the FM receiver receives news, General information such as a weather forecast can be received as FM multiplex information. The beacon receiver and the FM receiver are unitized and arranged as a VICS receiver, but they can be arranged separately.
[0037]
Further, the communication section 38 can also receive various data such as D-GPS information for detecting a detection error of the GPS sensor 15 transmitted from a predetermined base station. Further, the communication unit 38 can receive the position information by a radio beacon, an optical beacon, or the like, and detect the current position. In this case, the beacon receiver functions as a current position detection unit.
[0038]
Further, the communication unit 38 can also receive various information such as traffic information and general information from the information center 51 as a second information provider. Therefore, the communication unit 38 and the information center 51 are connected via the network 43.
[0039]
A navigation system is configured by the navigation device 14, the information center 51, the network 43, and the like, and transmission and reception are performed between the communication unit 38 and a communication unit (not shown) of the information center 51.
[0040]
In this embodiment, in order to make the communication unit 38 function as a communication terminal, a communication device is provided integrally with the communication unit 38. However, a communication device is provided separately from the communication unit 38. And the communication device and the communication unit 38 can be connected. In this case, as a communication device, a mobile phone such as a mobile phone, a car phone, or a PHS, a wireless LAN card, or the like, a personal computer, a portable computer, a personal digital assistant (PDA), an electronic organizer, and a videophone Alternatively, a game machine or the like having a communication function can be used.
[0041]
The network 43 includes a LAN (Local Area Network), a WAN (Wide Area Network), an intranet, a mobile telephone network, a telephone network, a public communication network, a dedicated communication network, and a communication network such as the Internet. Communication means can be used. Communication means utilizing CS broadcasting, BS broadcasting, terrestrial digital television broadcasting, FM multiplex broadcasting, or the like by a broadcasting satellite can also be used. Further, communication means such as a non-stop automatic toll payment system (ETC) and a border communication system (DSRC) used in the Intelligent Transport System (ITS) can be used.
[0042]
The information center 51 may be operated by any one of an individual, a company, an organization, a local government, a governmental agency, or the like, and may be operated by the VICS (registered trademark) center.
[0043]
The information center 51 includes a server 53, the communication unit, and the like. The server 53 performs two-way communication between the information center 51 and the navigation device 14 to provide various types of information. To this end, the server 53 includes a CPU 54, a RAM 55, a ROM 56, and the like as an arithmetic device and a control device, and functions as a computer based on predetermined programs, data, and the like. Note that the server 53 and the navigation processing unit 17 may constitute a computer.
[0044]
Further, a database (DB) 57 as an information recording unit is connected to the server 53, and the same data as various data recorded in the data recording unit 16 can be recorded in the database 57.
[0045]
The CPU 54 receives traffic information, general information, and the like transmitted from the VICS (registered trademark) center or the like, records it in the database 57 as primary information, performs statistical processing by processing the primary information, Statistical data that constitutes history information indicating the history of traffic congestion, traffic congestion prediction information for predicting traffic congestion, and the like are created, and the statistical data is recorded in the database 57 as secondary information. In the present embodiment, in creating the statistical data, the history information includes detailed conditions such as date and time, day of the week, weather, various events, season, and facility information (the presence or absence of large facilities such as department stores and supermarkets). Added.
[0046]
Next, a basic operation of the navigation system having the above configuration will be described.
[0047]
First, when the operation unit 34 is operated by the driver and the navigation device 14 is activated, a navigation initialization processing means (not shown) of the CPU 31 performs a navigation initialization process, and the current position and the azimuth detected by the GPS sensor 15. The direction of the vehicle detected by the sensor 18 is read, and various data are initialized.
[0048]
Subsequently, the navigation information acquisition processing means (not shown) as the first information acquisition processing means of the CPU 31 performs the navigation information acquisition processing as the first information acquisition processing, and the navigation device for map data, road data, search data, and the like. The basic information of 14, that is, the navigation information, is read and obtained from the data recording unit 16 or received and obtained from the information center 51 via the communication unit 38. When acquiring from the information center 51, the navigation information acquisition processing means downloads the received navigation information to a flash memory, a hard disk, or the like. When acquiring the navigation information via the communication unit 38, the navigation information may be acquired together with the program.
[0049]
Then, the display processing means 94 (FIG. 1) of the CPU 31 performs a display process, forms a map screen on the display unit 35, and displays a map around the current location on the map screen according to the map data. The present location is displayed together with the own vehicle direction. Therefore, the driver can drive the vehicle according to the displayed map and the current location.
[0050]
Further, the navigation device 14 or the navigation system can be used for a route search. In this case, when the driver operates the operation unit 34 to input a destination, a destination setting processing unit (not shown) of the CPU 31 performs a destination setting process to set a destination. Note that a departure place can be input and set as needed. When the destination is set, the route search processing means 92 of the CPU 31 or 54 performs a route search process, reads the current location, the destination, the search data, and the like, and displays the current location based on the search data. A route from the starting point to the destination is searched for, and route data representing the searched route is output.
[0051]
Further, a guide processing means (not shown) of the CPU 31 performs a guide process to guide a driver on a search route. For this purpose, the guidance processing means sends a guidance command to the display processing means 94, and the display processing means 94 reads the route data according to the guidance command, and displays a search route on the map screen according to the route data.
[0052]
Then, when the route search processing is performed in the information center 51, the transmission processing means (not shown) of the CPU 54 performs the transmission processing, transmits the route data representing the searched route to the navigation device 14, and the CPU 31 acquires the second information. Route information acquisition processing means (not shown) as processing means performs route information acquisition processing as second information acquisition processing, and receives and acquires the route data. Subsequently, the guidance processing unit sends a guidance command to the display processing unit 94, and the display processing unit 94 similarly reads the route data according to the guidance command, and displays a search route on the map screen according to the route data. I do.
[0053]
The guidance processing means sends a guidance command to a voice output processing means (not shown) of the CPU 31, and the voice output processing means performs a voice output process in accordance with the guidance command, and outputs a search route from the voice output unit 37 in voice.
[0054]
In this way, the search route is guided, and the driver can drive the vehicle according to the guided search route.
[0055]
The navigation device 14 can receive various information such as traffic information and general information via the communication unit 38. For this purpose, the additional information acquisition processing means (not shown) as the third information acquisition processing means of the CPU 31 performs additional information acquisition processing as third information acquisition processing, and receives the traffic information, general information, and the like as additional information. And get. Therefore, the display processing means 94 can display the traffic congestion status and the like on the map screen.
[0056]
Incidentally, the traffic information includes information type data indicating the type of information, secondary mesh X and Y data for specifying a secondary mesh as a mesh, and road links connecting two points (for example, intersections). Identify and include link number data indicating up / down distinction, link information indicating the content of information provided in association with the link number data, and the link information includes, for example, from the starting point of the road link. It is composed of congestion head data indicating the distance to the head of the congestion, congestion degree data indicating the degree of congestion, congestion length data indicating the congestion section from the head of the congestion to the end of the congestion, and the like.
[0057]
Therefore, the display processing means 94 converts each link information of the traffic information into, for example, a traffic congestion arrow as a traffic condition index indicating whether the traffic is a traffic congestion section, whether the traffic is congested or not. And displays the congestion arrow along the road on the map screen. In this case, the color of the road, the congestion arrow, and the like is changed to red, orange, etc., depending on the degree of congestion.
[0058]
In this way, the driver can know the traffic congestion state on the road on which the vehicle is to run, the searched route, and the like.
[0059]
By the way, in the present embodiment, the navigation system is used as an information display system, a search route is set as a plurality of route candidates, and a congestion state of a predetermined route candidate is predicted. I have.
[0060]
Next, the operation of the information display system for predicting and displaying the traffic congestion state will be described.
[0061]
FIG. 3 is a flowchart showing the operation of the information display system according to the embodiment of the present invention, FIG. 4 is a diagram showing an example of a first setting screen according to the embodiment of the present invention, and FIG. FIG. 6 shows an example of a second setting screen, FIG. 6 shows an example of a search result display screen in the embodiment of the present invention, and FIG. 7 shows an example of a selection route in the embodiment of the present invention. 8 is a first diagram illustrating an example of a selected route display screen according to the embodiment of the present invention, and FIG. 9 is a second diagram illustrating an example of a selected route display screen according to the embodiment of the present invention.
[0062]
First, when the operation unit 34 (FIG. 2) is operated by the driver and the navigation device 14 is activated, the current position is detected by the GPS sensor 15, and then the navigation initialization processing means executes the navigation initialization processing. Then, the current position detected by the GPS sensor 15 and the own vehicle direction detected by the direction sensor 18 are read, and various data are initialized.
[0063]
Subsequently, the navigation information acquisition processing unit reads and acquires the navigation information from the data recording unit 16, and the display processing unit 94 (FIG. 1) forms a map screen on the display unit 35, Then, a map around the current location is displayed according to the map data in the navigation information, and the current location is displayed together with the own vehicle direction.
[0064]
When the driver operates the operation unit 34 and clicks (or touches) a predetermined destination setting key to obtain a search route to a predetermined destination, the display processing unit 94 causes the display unit 35 to A first setting screen as shown in FIG. 4 is formed, and on the first setting screen, "Please specify a departure place. [Select a departure place]" and "[Select a destination place]" A message is displayed, and a keyword search area AR1 for inputting a departure place, a keyword search area AR2 for inputting a destination, search keys k1, k2, and a decision key k3 are displayed. When the driver clicks (or touches) the search keys k1 and k2 to perform a keyword search. For example, when "Okazaki IC" is input in the area AR1 and "Chunichi Building" is input in the area AR2, ""Tomei Expressway Okazaki IC" is displayed, and "Chunichi Building" is displayed as the destination. Then, when the driver clicks the enter key k3, "Tomei Expressway Okazaki IC" is inputted as the departure place and "Chunichi Building" is inputted as the destination. Then, the destination setting processing means sets “Chunichi Building” as the destination. The departure point may be the current position detected by the GPS sensor 15. In this case, the driver does not need to input the departure place.
[0065]
Then, the display processing means 94 forms a second setting screen as shown in FIG. 5 on the display unit 35, and inputs a departure time zone to set a search condition on the second setting screen. The area AR3 is displayed. For example, in FIG. 5, a field for specifying a departure time zone is formed in the input area AR3 on the second setting screen, a search start key k4 is formed, and the driver operates the display unit 35 to operate. The search can be started by designating the departure time zone.
[0066]
For this purpose, items of “depart from now” and “designate departure time zone” are formed in the input area AR3, and when the driver clicks on “depart from now”, the search condition setting processing means (not shown) of the CPU 31 A search condition setting process is performed, the current time is set as a departure time zone as a search condition, and when the driver clicks "designate a departure time zone", the search condition setting processing means inputs the The search condition is set such that the departure time is set to the time of the start. As a search condition, a search method such as a general road priority or a highway priority can be set.
[0067]
Subsequently, when the driver clicks the search start key k4, a transmission processing unit (not shown) of the CPU 31 performs a transmission process and transmits the departure place, the destination, and the search condition to the information center 51.
[0068]
In the information center 51, the route information acquisition processing means acquires by reading search data and the like from the database 57, and the route search processing means 92 reads the departure place, destination, search condition, and search data. Based on the search data and according to the search conditions, a route from the starting point to the destination is searched, and route data representing the searched route is output. In this case, the route search processing means 92 selects a plurality of route candidates as the route is searched, in this embodiment, two route candidates, and the transmission processing means (not shown) of the CPU 54 A transmission process is performed, and the route data of each route candidate is transmitted to the navigation device 14.
[0069]
Subsequently, in the navigation device 14, the display processing means 94 forms a search result display screen as shown in FIG. 6, and displays two route candidates on the search result display screen according to the route data. At the same time, two route selection keys k5 and k6 are displayed corresponding to each candidate. In other words, on the search result display screen, a candidate with "Tomei Okazaki IC" as the departure point, traveling on "Tomei Expressway", traveling from "Nagoya IC" on "general road", and "Chunichi Building" as the destination 1. Start at Tomei Okazaki IC, drive at Tomei Expressway, drive from Nagoya IC to Tomei Osaka, drive from Kusunoki IC to Nagoya Expressway, and go to Higashi Shinmachi , The candidate 2 traveling on the “general road” and having the destination “Chunichi Building” is displayed.
[0070]
Then, when the driver clicks one of the route selection keys k5 and k6, for example, the route selection key k5 to select a route, the transmission processing means selects the selected route as the selected route information indicating the selected route. The flag is sent to the information center 51.
[0071]
By the way, in the present embodiment, the selected route is displayed on the display unit 35, and the selected route display screen is formed so that the driver can evaluate the selected route. , A departure place, a destination, and a selected route are displayed, and route evaluation information for evaluating the selected route is displayed for the selected route.
[0072]
For this purpose, the traffic jam information acquisition processing means 91 as the fourth information acquisition processing means of the CPU 54 performs the traffic jam information acquisition processing as the fourth information acquisition processing, and reads the current traffic jam section, the degree of the traffic jam from the database 57. The traffic information indicating the traffic congestion status and the statistical data indicating the history of the traffic congestion status are obtained by reading. The congestion prediction information calculation processing means 93 of the CPU 54 performs congestion prediction information calculation processing, reads navigation information from the database 57, reads the traffic information and statistical data, and reads the navigation information, traffic information, statistical data, and the like. Is calculated in accordance with the following.
[0073]
That is, first, the congestion prediction information calculation processing means 93 performs, for the selected route Rt1 shown in FIG. 7, a predetermined section ahead of the departure point Ps in the departure time zone, for example, a congestion point within a distance X, And the predicted traffic congestion state is used as traffic congestion prediction information.
[0074]
Subsequently, a passing time calculation processing unit (not shown) of the CPU 54 performs a passing time calculation process, and calculates a passing time t1 of a passing point T1 which is a distance X ahead of the departure point Ps according to the navigation information, the traffic congestion prediction information, and the like. And predict. At this time, the number of lanes, width, and the like of the road, which may cause traffic congestion or increase the degree of traffic congestion, are particularly considered.
[0075]
Next, the congestion prediction information calculation processing means 93 calculates, as congestion prediction information, a predetermined section ahead of the passing point T1 at the passing time t1, for example, a congestion location within the distance X, and a congestion situation at the congestion location. ,Predict. The passing time calculation processing means calculates and predicts a passing time t2 at a passing point T2 that is a distance X ahead of the passing point T1.
[0076]
In the present embodiment, each distance X to each passing point Ti (i = 1, 2,...) On the selected route Rt1 is fixed, but the distance is appropriately changed depending on the type of road and the like. be able to.
[0077]
In this way, the calculation of the traffic congestion prediction information and the calculation of the passing time tj ((j = 1, 2,...)) Are repeated, and the virtual traveling is performed on the selected route Rt1, and the starting point Ps and each passing point Ti It is possible to obtain traffic congestion prediction information for a predetermined section ahead, for example, a section within a distance X. Bk (k = 1, 2,...) Indicates a traffic congestion location and a traffic congestion section in the traffic congestion prediction information. It is a mark to represent.
[0078]
Subsequently, when the vehicle arrives at the destination Pg, the travel time calculation processing means (not shown) of the CPU 54 performs a travel time calculation process, and the required time estimated when the vehicle travels using the selected route Rt1 as a search route ( Travel time), that is, the estimated required time is calculated. Further, the travel time calculation processing means reads the required time at normal time, for example, the required time when the vehicle is driven in a state without traffic congestion from the database 57, and compares the predicted required time with the required time at normal time. The required time difference is also calculated.
[0079]
Then, the predicted own vehicle position calculation processing means (not shown) of the CPU 54 performs a predicted own vehicle position calculation process, and the vehicle is predicted at predetermined time intervals based on the traffic congestion prediction information and the passing time tj. The position, that is, the predicted own vehicle position is calculated.
[0080]
Subsequently, the transmission processing means of the CPU 54 displays the departure time, the estimated required time, the required time at normal time, the required time difference, the predicted own vehicle position at each time interval, and the congestion prediction information corresponding to each predicted own vehicle position. The data is transmitted to the navigation device 14 as data.
[0081]
Then, in the navigation device 14, the display processing means 94 forms a selected route display screen as shown in FIG. 8, and displays the selected route Rt1, the departure place Ps, the destination in the map area AR4 of the selected route display screen. In addition to displaying the ground Pg and the like as basic display information, in the evaluation information area AR5, a departure time, a predicted required time, a required time in normal time (“(normal time)”), and a required time difference (“increase” or “decrease”) A scale representing the time interval is displayed as route evaluation information for evaluating the selected route Rt1.
[0082]
Further, the display processing means 94 displays, in the map area AR4, a predicted vehicle position Pv that changes at each time interval, and a mark Bk representing a traffic congestion location and a traffic congestion section within a distance X ahead of the predicted vehicle position Pv. , As route evaluation information.
[0083]
When a time on the scale is clicked in the evaluation information area AR5, as shown in FIG. 9, the predicted own vehicle position Pv at the time is displayed in the map area AR4, and the distance X ahead of the predicted own vehicle position Pv is displayed. When traffic congestion is predicted to occur in the vehicle, a mark Bk indicating a traffic congestion location and a traffic congestion section is displayed on the selected route Rt1 in an overlapping manner.
[0084]
As described above, in the present embodiment, the traffic jam prediction information is calculated based on the traffic jam information on the selected route Rt1, and when it is predicted that the traffic jam will occur on the selected route Rt1, the selected route display screen displays Since the mark Bk is displayed, it is possible to obtain information on a route in which traffic congestion is considered before the vehicle is driven. Further, by changing the departure time or selecting another route based on the route evaluation information displayed on the selected route display screen, traffic congestion can be avoided, and comfortable travel can be achieved.
[0085]
In the present embodiment, the mark Bk indicates a congested point and a congested section. However, the degree of congestion can be indicated by changing the thickness, color, and the like of the mark Bk.
[0086]
In addition, the estimated required time, the required time in normal time, the required time difference, and the like are displayed as route evaluation information in the evaluation information area AR5, so that the departure time can be changed based on the predicted required time, the required time difference, and the like. By selecting a route, traffic jams can be avoided and comfortable driving can be achieved. Further, since the scale representing the time interval and the predicted own vehicle position Pv that changes at each time interval are displayed as route evaluation information, the departure time is changed based on the predicted own vehicle position Pv, By selecting a route or the like, traffic jams can be avoided and comfortable driving can be performed.
[0087]
Next, the flowchart will be described.
Step S1 The current location is detected.
Step S2: Specify the destination Pg.
Step S3: Select a departure time zone.
Step S4 Transmit the departure place Ps, destination Pg and departure time zone.
Step S5 Search for a route.
Step S6: Select a route candidate.
Step S7: Select a route.
Step S8: Transmit the selected route flag.
Step S9: Calculate congestion prediction information in a departure time zone within a distance X ahead of the departure place Ps.
Step S10: The passing time tj of the passing point Ti ahead by the distance X is predicted.
Step S11 The traffic congestion prediction information at the passing time tj is calculated.
Step S12: It is determined whether or not the destination Pg has been reached. If the vehicle has reached the destination Pg, the process proceeds to step S13. If the vehicle has not reached the destination Pg, the process returns to step S10.
Step S13: Calculate the estimated required time.
Step S14: The predicted vehicle position, traffic congestion prediction information, etc. are transmitted for each set time interval.
Step S15: The predicted required time, the predicted vehicle position Pv, the traffic congestion prediction information, and the like are displayed, and the process ends.
[0088]
In the present embodiment, the route information acquisition processing means, traffic congestion information acquisition processing means 91, traffic congestion prediction information calculation processing means 93, passing time calculation processing means, travel time calculation processing means, predicted own vehicle position calculation processing means, etc. Although it is arranged at the center 51, it can also be arranged at the CPU 31.
[0089]
In the present embodiment, the navigation device 14 is used as the information terminal. However, in other embodiments, a mobile phone such as a mobile phone, a car phone, or a PHS is used as the information terminal. Alternatively, a personal computer, a portable computer, a personal digital assistant (PDA), an electronic organizer, a videophone, a game machine, or the like having a communication function can be used.
[0090]
It should be noted that the present invention is not limited to the above-described embodiment, but can be variously modified based on the gist of the present invention, and they are not excluded from the scope of the present invention.
[0091]
【The invention's effect】
As described above in detail, according to the present invention, traffic congestion prediction information is calculated and route evaluation information is displayed, so that it is possible to obtain information on a route in which traffic congestion is taken into consideration before running the vehicle. In addition, for example, by changing the departure time or selecting another route based on the route evaluation information, traffic congestion can be avoided and a comfortable travel can be performed.
[Brief description of the drawings]
FIG. 1 is a functional block diagram of an information display system according to an embodiment of the present invention.
FIG. 2 is a diagram showing a navigation system according to the embodiment of the present invention.
FIG. 3 is a flowchart showing an operation of the information display system in the embodiment of the present invention.
FIG. 4 is a diagram showing an example of a first setting screen according to the embodiment of the present invention.
FIG. 5 is a diagram showing an example of a second setting screen according to the embodiment of the present invention.
FIG. 6 is a diagram showing an example of a search result display screen according to the embodiment of the present invention.
FIG. 7 is a diagram illustrating an example of a selection route according to the embodiment of the present invention.
FIG. 8 is a first diagram showing an example of a selected route display screen according to the embodiment of the present invention.
FIG. 9 is a second diagram illustrating an example of a selected route display screen according to the embodiment of the present invention.
[Explanation of symbols]
17 Navigation processing unit
35 Display
53 server
91 Congestion information acquisition processing means
92 Route search processing means
93 Congestion prediction information calculation processing means
94 display processing means

Claims (8)

Information acquisition processing means for acquiring congestion information; route search processing means for searching for a route from a departure point to a destination; and congestion prediction information calculation for calculating congestion prediction information based on congestion information on the searched route. An information display system comprising: a processing unit; and a display processing unit that displays a route representing the route and route evaluation information calculated based on the traffic congestion prediction information on a display unit. The information display system according to claim 1, wherein the traffic jam information is traffic information indicating a current traffic jam status and statistical data calculated based on a history of the traffic jam status. The information display system according to claim 1, wherein the route search processing means searches for a route based on the departure place, the destination, and a departure time zone. The information display system according to claim 1, wherein the route displayed on the display unit is a selected route selected from a plurality of route candidates. The information display system according to claim 1, wherein the traffic jam prediction information calculation processing means calculates traffic jam prediction information in a departure time zone. The information display system according to claim 3, wherein the traffic jam prediction information calculation processing means calculates traffic jam prediction information at a passing time when the vehicle passes through a passing point on a route. Information acquisition processing means for acquiring congestion information; route search processing means for searching for a route from a departure point to a destination; and congestion prediction information calculation for calculating congestion prediction information based on congestion information on the searched route. An information provider comprising: a processing unit; and a transmission processing unit that transmits a route representing the route and route evaluation information calculated based on the traffic congestion prediction information to an information terminal. Computer, information acquisition processing means for acquiring traffic congestion information, route search processing means for searching for a route from a departure point to a destination, traffic congestion prediction information for calculating traffic congestion prediction information based on traffic congestion information on the searched route A computer-readable storage medium storing a program for causing a computer to function as calculation processing means and display processing means for displaying a route representing the route and route evaluation information calculated based on the traffic congestion prediction information on a display unit.

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