JP2001118188A - Information display device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To predict a future road traffic state with the same condition based on past road traffic information and related information. SOLUTION: When jam information and regulation information on a road are received by a reception means 11, time, a date, a day and weather information are stored/accumulated in a road traffic information storage means 12. The conditions of a road name, time, the date, the day and a weather are inputted from a retrieval condition input means 16 and road traffic information matched with the condition is retrieved by a retrieval means 17. When the conditions of the road name, time, the date, the day and the weather are matched, a road traffic situation is to become similar, a retrieval result is displayed on a road traffic information display means 18, thereby the future traffic situation is predicted.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an information display device, and more particularly to an information display device that receives road traffic information such as traffic congestion information and regulation information by FM multiplex broadcasting or a beacon device and displays the information as character information or graphic information. About.

[0002]

2. Description of the Related Art In a conventional on-vehicle traffic information display device, V
As typified by ICS etc., on the way to the destination by car, FM multiplex broadcast receiver and beacon device
It is configured to receive real-time road traffic information such as traffic congestion information, construction information, and accident information, and display the information as character information or graphic information. Using this information, the time required to reach the destination can be estimated.

[0003] For example, suppose that a person who has a home in Yokohama and usually commutes to a company in Kawasaki by car has completed a job that requires carrying luggage to a customer company in Tokyo. You have to leave your home, load your luggage at your company, and have your luggage delivered to your Tokyo customer company by 9:00. However, they have little experience driving on roads in Tokyo early in the morning and are the first to go to a customer company in Tokyo. You need to plan what time to leave and how to get to your customer company.

A car navigation system has a VICS
A receiver is attached, and traffic congestion information can be understood in real time. At the time of route search, a route and a required time in consideration of the information can be calculated. In order to know how long it takes to reach the customer company, the car navigation system sets the customer company as the destination and performs a route search. The resulting turnaround time is about one hour.

Further, as a conventional traffic volume prediction method, there is a method disclosed in Japanese Patent Application Laid-Open No. 6-290191. This is a method of accumulating operation results on a road on which a vehicle has actually traveled in the past and predicting an optimal route.

[0006]

However, in the conventional on-board traffic information display device, only the current traffic jam information can be used. Therefore, it is not possible to calculate the shortest route and the required time in the next morning traffic jam time zone. Impossible. In the case of the above example, the calculated required time is a result that does not take into account traffic congestion information at the time of commuting traffic congestion, so there is no way to arrive at a customer company in Tokyo in one hour in the morning commuting congestion However, there is a problem that only a result far from the actual situation can be obtained. In particular, if the scheduled departure date is Monday, fifty days (goby), or it rains, the traffic congestion may be more severe than expected. Is more difficult to predict.

[0007] Further, the conventional traffic volume prediction method can only predict the traffic volume of a road which has been driven in the past. When driving in places and times when the driver does not normally drive,
There is a problem that it is not easy to make a plan for a departure time and a traveling route because it is not possible to know the tendency such as traffic jam.

SUMMARY OF THE INVENTION It is an object of the present invention to solve the above-mentioned conventional problems and to predict and display a traffic condition on a road which has not been driven.

[0009]

In order to solve the above-mentioned problems, according to the present invention, an information display device is provided with first information obtaining means for obtaining road traffic information, and obtaining information related to road traffic information. A second information acquisition unit that stores the acquired road traffic information and related information; a search unit that searches for road traffic information from the storage unit; an input unit that inputs a condition for the search; Display means for displaying road traffic information.

[0010] With this configuration, it is possible to search for past road traffic information close to the target condition from the accumulated road traffic information and related information, and predict the traffic condition.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments of the present invention will be described in detail with reference to FIGS.

(Embodiment) In an embodiment of the present invention, traffic congestion information and regulation information of a road are received and stored together with time, date, day of the week, and weather information, and a road which substantially matches target conditions is stored. The information display device searches and displays traffic information and predicts future road traffic conditions under the same conditions.

FIG. 1 is a functional block diagram of an information display device according to an embodiment of the present invention. In FIG. 1, a receiving unit 11 is a unit that receives road traffic information such as traffic congestion information and regulation information, and is configured by an FM multiplex broadcast receiver, a beacon receiving device, or a combination thereof. The storage unit 12 is a unit that stores road traffic information such as traffic congestion information and regulation information received by the reception unit. The clock unit 13 is a clock for obtaining a time when the road traffic information is stored in the storage unit 12. The calendar means 14 is a calendar for obtaining date information and day information. The weather information receiving means 15 is a means for receiving any one of weather information of the area, such as sunny, rainy, cloudy, snowy, or a combination of these pieces of information. Search condition input means 16
Is means for inputting information such as time information, date information, day of the week information, and weather information as search conditions. Search means 17
This is a means for searching for road traffic information under conditions close to the input conditions. The display means 18 is a means for displaying a search result.

The operation of the information display device according to the embodiment of the present invention configured as described above will be described. As shown in FIG. 1, road traffic information such as traffic congestion information and regulation information is received by a receiving unit 11 such as an FM multiplex broadcast receiver or a beacon receiving device, and stored and stored in a storage unit 12. When the road traffic information is stored in the storage means 12, the time calculated by the clock means 13 and the date information, the day of the week information specified from the calendar information 14, and the fine and rainy information input from the weather information receiving means 15 , Cloudy weather, snowy weather, etc., or a combination thereof. That is, the traffic jam information received by the VICS or the like is stored together with the factors that influence the traffic jam.

By repeating the above operation, a large amount of road traffic information is stored in the storage means 12 together with information at the time of occurrence. FM as road traffic information
If traffic information by multiplex broadcasting is used, traffic information on a road on which the car has not actually traveled can also be accumulated. VIC
The traffic congestion information by S includes information on roads on which the vehicle is not traveling. In particular, the traffic congestion data by FM multiplex broadcasting includes traffic information on a wide area.

The reason why it is necessary to store weather information and the like together with road traffic information is as follows. The time information is used to identify the traffic congestion on the road that changes significantly depending on the commuting time zone, daytime, and midnight. Date information
Especially on the fifty days (gobi) and the end of the month, traffic jams become severe,
Necessary to distinguish it from regular dates. Also,
Seasonal information that can be identified from date information is necessary to identify traffic conditions on roads whose traffic volume varies greatly depending on the season, such as roads near the coast or roads near ski slopes. The day of the week information is necessary to identify that the time at which traffic congestion on the road changes between weekdays and holidays. Furthermore, weather information is necessary for identifying road information because it has a large influence on road conditions, such as heavy traffic on a rainy day, and congestion is likely to occur.

With respect to the road traffic information stored in the storage means 12 as described above, time information, date information, day of the week information, and weather information are used as search conditions, and search condition input means 16 is used.
Enter from. The search means 17 searches for conditions close to the input conditions. The road traffic information stored together with the corresponding conditions is displayed on the display means 18.

For example, on a Monday, it is likely to rain in the weather forecast, and a condition such as a time zone of eight o'clock is input to search for past traffic congestion information similar to the condition. Since the required time can be estimated in advance based on the information, it is possible to make a plan that avoids traffic congestion in a special season, date and time zone.

As described above, information that greatly affects traffic volume and traffic congestion is stored together with road traffic information such as traffic congestion information and regulation information, and traffic information close to the input conditions is searched and displayed. It is possible to know the trend of traffic conditions before leaving by car, and it becomes easy to make a driving plan such as departure time and rough driving route.

In the above embodiment, a case has been described in which road traffic information close to the condition input by the search condition input means 16 is searched and displayed as it is. However, as shown in FIG. The information predicted by the prediction unit 21 may be displayed by using the road traffic information thus obtained. As the prediction means, a means using a method of estimating the traffic volume by interpolation or extrapolation using data having a large correlation with the traffic volume may be provided.

Further, past road traffic information is received by a receiving means.
The information is not obtained only from 11 but may be collected and accumulated by other means. As shown in FIG. 3, using a computer at the driver's home or the like, the road traffic information obtained from the network is stored in the road traffic information storage unit 12 via the movable medium reading device 310. . By making this information a search target, it is possible to accumulate traffic information in a wider area and road traffic information in many time zones. Can be searched and provided.

By constructing a system that can download information uploaded by another driver to an information source such as the Internet, there is almost no opportunity to drive a car on weekdays and a Sunday driver who does not store information, Even when it is desired to obtain traffic congestion information in a distant area that cannot be covered by traffic congestion information obtained by FM multiplex broadcasting, it is possible to compensate for the mutually lacking information.

As described above, in the embodiment of the present invention,
The information display device receives road congestion information and regulation information, stores and accumulates the time, date, day of the week, and weather information, searches for and displays road traffic information that almost matches the target conditions, and displays the same information. Since the configuration is such that the future road traffic condition of the condition is predicted, the traffic condition can be accurately predicted even on a road that has not been driven.

[0024]

As is apparent from the above description, according to the present invention, the information display device is provided with a first information acquiring means for acquiring road traffic information and a second information acquiring means for acquiring related information related to road traffic information. Acquisition means, storage means for storing the acquired road traffic information and related information, search means for searching for road traffic information from the storage means, input means for inputting search conditions, and searched for road traffic information And display means for displaying the information, so that from the accumulated road traffic information and related information, it is possible to search for past road traffic information close to the target condition and predict future traffic conditions. The effect is obtained.

[Brief description of the drawings]

FIG. 1 is a block diagram of functions of an information display device according to an embodiment of the present invention;

FIG. 2 is a block diagram in which a road traffic information prediction unit is added to the information display device according to the embodiment of the present invention;

FIG. 3 is a block diagram in which a removable storage medium reading device is provided in the information display device according to the embodiment of the present invention.

[Explanation of symbols]

 11 Road traffic information receiving means 12 Road traffic information storage means 13 Clock means 14 Calendar information 15 Weather information receiving means 16 Search condition input means 17 Search means 18 Road traffic information display means 29 Road traffic information prediction means 310 Reader

Claims (9)

[Claims] 1. A first information acquiring unit for acquiring road traffic information, a second information acquiring unit for acquiring related information related to the road traffic information, and storing the acquired road traffic information and the related information. Storage means, a search means for searching the road traffic information from the storage means, an input means for inputting a condition for searching, and a display means for displaying the searched road traffic information. Information display device. 2. The information according to claim 1, further comprising prediction means for predicting a traffic condition under the condition inputted by said input means on the basis of the road traffic information retrieved by said retrieval means. Display device. 3. The information display device according to claim 1, wherein the first information acquiring unit and the second information acquiring unit are mobile unit receiving units. 4. The information display device according to claim 1, wherein the first information acquisition unit and the second information acquisition unit are detachable storage medium reading devices. 5. The information display device according to claim 1, further comprising a clock unit that measures a time at which the road traffic information is received by the receiving unit. 6. The information display device according to claim 1, further comprising a calendar unit for specifying a date and a day of the week when the road traffic information is received by the receiving unit. 7. The information display device according to claim 1, further comprising weather information receiving means for receiving weather information when the road traffic information is received by the receiving means. 8. The apparatus according to claim 5, further comprising means for retrieving and displaying road traffic information stored together with a condition close to the condition input by said input means. Information display device. 9. A method for displaying a road condition predicted by the prediction unit based on road traffic information stored together with a condition close to a condition input by the input unit and the condition. The information display device according to any one of claims 5, 6, and 7.