JP2004286653A - System for displaying reliability degree information - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To enable easy grasping of the reliability about the POI data by displaying the reliability information on the POI data, resulting in effective utilization of the POI data. <P>SOLUTION: An information display system has a POI storing data unit for storing the POI data, a reliability information storage unit for storing the reliability information on POI data, a reliability information processing unit for processing to make the POI data related to the reliability information to display the result, and the display device for displaying the POI data with the reliability information. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a reliability information display system.
[0002]
[Prior art]
2. Description of the Related Art Conventionally, a navigation device installed in a vehicle such as an automobile searches for an optimal route from a set departure point to a destination based on road map data, and displays it on a display unit. I have.
[0003]
Further, a navigation apparatus having a search function for searching for a facility such as a restaurant, an amusement park, a department store, or a point of interest, a scenic spot, or the like as a POI (Point of Interest) is also provided. In this case, the navigation device stores various information related to the POI in the storage means as POI data, and allows an operator such as a driver of the vehicle to operate a point such as a famous place, a scenic spot, a restaurant, an amusement park, or a department store in a predetermined area. When a facility such as is searched, the corresponding facility or point is displayed on the display screen of the navigation device (for example, see Patent Document 1). It should be noted that there is also provided a navigation device that displays detailed information on the facilities and points, for example, a store opening time, a location, a telephone number, and the like on a display screen.
[0004]
Thus, the operator can grasp an appropriate route to the destination and can easily grasp information of a desired facility or point.
[0005]
[Patent Document 1]
JP 2000-2555A
[0006]
[Problems to be solved by the invention]
However, in the conventional navigation device, the reliability of the POI data is unknown, and it is not possible to distinguish between highly reliable information and information with low reliability. Therefore, the operator has a distrust of the information displayed by the navigation device, and cannot fully utilize the information on the facilities and points as the POI.
[0007]
For example, in the case of a facility such as a restaurant, items such as open days and hours, menus, prices, and the like are often changed. Were unable to determine how reliable they could be. In the case of a commercial facility such as a convenience store or a facility such as a gas station, the name of the store may be changed or it may go out of business, and marks indicating these facilities are displayed on the map screen of the navigation device. However, the operator could not determine whether the facility actually exists.
[0008]
However, it is also conceivable that the navigation device accesses the server via the network and searches for the POI data stored in the storage means of the server so that the latest POI data can always be used. In this case, since the POI data is stored in the storage means of one or a very small number of servers, the POI data can be easily updated, and even in a large number of navigation devices, the latest POI data can be obtained simply by accessing the server. Data is available. However, it is practically difficult to reliably update all of the huge amount of POI data, and even if updated, all of the POI data stored in the storage means of the server is not necessarily highly reliable. Not necessarily.
[0009]
The present invention solves the above-mentioned conventional problems and displays reliability information on POI data so that the reliability of the displayed POI data can be grasped and POI data is effectively used. It is an object of the present invention to provide a reliability information display system capable of performing the above.
[0010]
[Means for Solving the Problems]
Therefore, in the reliability information display system of the present invention, a POI data storage unit for storing POI data, a reliability information storage unit for storing reliability information of the POI data, and It has a reliability information processing unit that executes a process of displaying the POI data in association with each other, and a display device that displays the POI data together with reliability information.
[0011]
In another reliability information display system according to the present invention, an information terminal including the display device and the transmission / reception unit, and a server including the POI data storage unit, the reliability information storage unit, the reliability information processing unit, and the transmission / reception unit Consisting of
[0012]
In still another reliability information display system according to the present invention, the reliability information processing section selects POI data based on the reliability information.
[0013]
In still another reliability information display system according to the present invention, the reliability information processing section displays a list of POI data based on the reliability information.
[0014]
In still another reliability information display system according to the present invention, the reliability information processing unit changes a display mode of the POI data based on the reliability information.
[0015]
In still another reliability information display system of the present invention, an information terminal that transmits a POI search condition to a server, receives POI data and reliability information from the server, and displays the POI data together with the reliability information; The POI search condition is received from the information terminal, a search is performed based on the POI search condition, and processing for displaying the searched POI data in association with reliability information is executed. A server for transmitting to the information terminal.
[0016]
In still another reliability information display system according to the present invention, the server transmits POI data whose reliability information is equal to or more than a predetermined value to the information terminal.
[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. 2 is a conceptual diagram showing a configuration of the reliability information display system according to the embodiment of the present invention.
[0019]
In the figure, reference numeral 11 denotes an information providing server as a server, which is configured in a computer including a computing unit such as a CPU and an MPU, a storage unit such as a semiconductor memory, a magnetic disk, an optical disk, and a communication interface. Note that the computer is not a single computer but may be a so-called distributed server in which a plurality of computers are organically combined. Another system may be built in the computer. Further, the information providing server 11 may be one of systems built in another computer.
[0020]
12a and 12b are information terminals as first and second information terminals operated by the operator. In addition, when the first information terminal 12a and the second information terminal 12b are generally described, they will be described as the information terminals 12. Although the number of the information terminals 12 is actually large, in the present embodiment, the first information terminals 12a and the second information terminals 12b are represented for convenience of explanation. Further, the operator is, for example, a driver of a vehicle such as a car, truck, bus, or motorcycle, a passenger, or the like. It may be.
[0021]
The information terminal 12 includes a processing device such as a CPU and an MPU, a storage device such as a semiconductor memory, a magnetic disk and an optical disk, a liquid crystal display, an LED (Light Emitting Diode) display, a display device such as a CRT, a keyboard, a joystick, An input device such as a cross key, a push button, a remote controller, and a touch panel, a display control device for controlling the display device, and a transmission / reception unit such as a communication interface are provided. The information terminal 12 is, for example, a navigation device mounted on a vehicle such as a passenger car, a truck, a bus, and a motorcycle. The information terminal 12 includes a stationary telephone, a mobile telephone, a PHS (Personal Handy-Phone System) telephone, a personal digital assistant, and a PDA ( It may be any device such as a personal digital assistant, a personal computer, a game machine, a digital television, and the like.
[0022]
Further, the information terminal 12 may include a current position detecting device (not shown). When the information terminal 12 is, for example, a navigation device, the current position detection device generally uses a GPS (Global Positioning System), a geomagnetic sensor, a distance sensor, a steering sensor, a beacon sensor, a gyro sensor, and the like. Detect the position. When the information terminal 12 is, for example, a mobile phone, a mobile information terminal, or the like, generally, the base station is connected to the base station based on communication with the base station in which the mobile phone, the mobile information terminal, or the like is located. Is detected as the current position.
[0023]
Here, the information providing server 11 and the information terminal 12 are communicably connected to each other via a network 27. The network 27 includes any communication such as a wired or wireless public communication network, a dedicated communication network, a mobile phone network, the Internet, an intranet, a LAN (Local Area Network), a WAN (Wide Area Network), and a satellite communication network. It may be a network or a combination of these as appropriate. In addition, communication may be performed using CS broadcasting or BS broadcasting by a broadcasting satellite, communication may be performed using terrestrial digital television broadcasting, communication may be performed using FM multiplex broadcasting, Communication may be performed using an optical beacon or a radio beacon installed on the side of the road.
[0024]
The information display system according to the present embodiment includes the information providing server 11 and the information terminal 12. The operator is a person registered in advance in the information display system and owning a registration ID. The information terminals 12 are also registered.
[0025]
The information providing server 11 transmits information such as detailed information on a route, a road, a facility, etc. to a destination based on information such as departure point information and destination information transmitted from the information terminal 12. An information providing unit 13 for providing the information terminal 12; a transmitting / receiving unit 14 for exchanging information with the information terminal 12; a terminal information storage unit 15 for sequentially storing the information for each information terminal 12; Has a terminal specifying unit 16 for specifying the ID based on the registration ID or the like.
[0026]
The information providing unit 13 includes a map database 17 as a map information storage unit, a POI database 18 as a POI data storage unit, a road database 19, a traffic information database 20 as a road traffic information storage unit, and a reliability information storage unit. As a reliability information database 21. In the present embodiment, a POI (Point of Interest) is a facility or point that serves as a starting point, a destination, a passing point, or the like in a normal navigation device navigation process, such as an accommodation facility or a refueling facility. , Commercial facilities, recreational facilities, eating and drinking facilities, parking facilities, transportation facilities, religious facilities, public facilities, etc., and sites such as historical sites, sightseeing spots, scenic spots, plazas, intersections, public buildings, monuments and the like. The POI data is various information related to the POI.
[0027]
Here, the map database 17 stores map data such as nodes, links, coordinates, and facility names for drawing a map. Further, the road database 19 stores data for searching for a route such as road data including road search costs, road types, and intersection data. In the road data, in addition to the number of roads in which the data is stored, data relating to each road is assigned as a road data with a number for identification, and stored. Each of the road data stores a road type, a distance as a length of each road, a travel time as a time required to travel on each road, and the like. Further, the road type includes administrative road attributes such as national roads, prefectural roads, major local roads, general roads, and expressways.
[0028]
In addition, the road data includes, for the road itself, a width, a gradient, a cant, an altitude, a bank, a road surface condition, whether or not there is a median strip, the number of lanes of the road, and a decrease in the number of lanes. It is desirable to include data on points, points where the width becomes narrow, and the like. Then, in the case of a highway or a highway, each of the lanes in the opposite direction is stored as separate road data and processed as a two-way road. For example, in the case of an arterial road having two or more lanes on one side, it is processed as a two-way road, and the upward lane and the downward lane are stored in the road data as independent roads. Further, as for the corner, it is desirable to include data such as a radius of curvature, an intersection, a T-junction, and an entrance of the corner. Further, road attributes such as a railroad crossing, a highway entrance rampway, a tollgate of a highway, a downhill road, an uphill road, and the like may be included.
[0029]
The POI database 18 stores POI data for searching for facilities and points as POIs, such as departure points, destinations, and passing points. The POI data also includes facility data, town page data, event data, and the like. . Further, the POI data includes accommodation facilities such as inns and hotels, refueling facilities such as gas stations, department stores, supermarkets, shopping centers, home centers, convenience stores, commercial facilities such as shopping malls, pachinko machines, game centers, movie theaters, and the like. Recreational facilities such as theme parks and amusement parks, eating and drinking facilities such as restaurants and cafeterias, parking facilities such as parking lots, parking spaces and parking towers, transportation facilities such as railway stations, bus terminals and taxi stands, shrines, temples and cemeteries It is desirable to include various information such as position information, business date and time information, and festival information about various facilities such as religious facilities such as religious facilities, tax offices, city halls, schools, and hospitals. Further, the POI data may include information on historic sites, shrines and temples, government agencies, sightseeing spots, high-rise buildings, parks, museums, airfields, stations, schools, factories, and the like in various places.
[0030]
The POI data may include detailed information on facilities and areas. For example, when the facility is a restaurant such as a restaurant or a dining room, the detailed information includes business days, business hours, telephone numbers, menus, prices, tastes, quality of service, atmosphere in the store, presence or absence of a parking lot, and the like. When the facility is a commercial facility such as a convenience store, a department store, a home center, a supermarket, etc., the detailed information includes a business day, business hours, a telephone number, an assortment (assortment), a price, a bargain sale ( Special sale) period, bargain sale target products, quality of service, atmosphere in the store, presence or absence of parking lot, type and period of entertainments and events, etc., and the facility is a theme park, game center, movie theater, theater, etc. In the case of an entertainment facility, the detailed information includes the day of the week, business hours, telephone number, facility contents, price, service quality, facility atmosphere, parking No, the type and duration, etc. of entertainment and events.
[0031]
In the traffic information database 20, for example, in a road traffic information communication system called VICS (R) (Vehicle Information & Communication System), the traffic information database 20 collects information of a traffic control system of police, Japan Highway Public Corporation, etc. The generated road traffic information such as traffic congestion information and traffic regulation information is stored. Further, the traffic information database 20 stores event schedule information such as a scheduled place of an event such as a festival, a parade, or a fireworks display, and a scheduled date and time. For example, a road around a station or a large commercial facility is identified every day except weekends. It is desirable to store statistical information such as occurrence of traffic congestion at time or traffic congestion during the summer vacation period on roads around the beach and weather information such as a weather forecast created by the Japan Meteorological Agency. In addition, the traffic information database 20 can store information provided by an information provider registered in advance. The information is, for example, detailed information on road traffic information such as traffic congestion information on traffic congestion on roads, traffic control information on traffic control by police, and traffic regulation information on road works and building works. In the case of traffic congestion information, the actual length of the traffic congestion, the cause of the traffic congestion, the time at which traffic congestion is expected to be eliminated, etc., and in the case of traffic control information, the type of traffic control such as speeding control, parking control, etc. The location, day of the week, time zone, and the like. In the case of traffic regulation information, the information includes the duration of road construction, construction work, etc., the type of traffic regulation such as road closure, one-way alternating traffic, lane regulation, and the time zone of traffic regulation.
[0032]
The reliability information database 21 stores reliability information indicating the reliability of various POI data stored in the POI database 18. In this case, the reliability may be, for example, a three-level evaluation of high, medium, and low, or may be a five-level evaluation or a ten-level evaluation. Here, the description will be made assuming that the reliability is expressed as a percentage. For example, the reliability information is expressed such that 100% represents the case where complete reliability can be obtained, and 0% represents the case where complete reliability cannot be obtained.
[0033]
In addition, the reliability information is assigned to each POI data, but is assigned to each item of information relating to the POI as POI data. Is desirably also provided. For example, the POI is a restaurant such as a restaurant or a cafeteria, and details such as the day of the week, business hours, telephone number, menu, price, taste, quality of service, atmosphere in the store, presence or absence of a parking lot, etc., which are open in the POI database 18 are described. When the information is stored, reliability information is given to each of the items such as business day of the week, business hours, telephone number, menu, price, taste, quality of service, atmosphere in the store, presence of parking lot, etc. In addition, it is preferable that reliability information indicating the degree of reliability of the information on the restaurant as a whole can be given. It is desirable that the reliability information is added to all information on all the POIs stored in the POI database 18, but there may be POIs or information to which no reliability information is added. In this case, it is desirable that unreliable information be added instead of the reliability information.
[0034]
Note that the reliability information database 21 may be formed integrally with the POI database 18. In this case, for example, reliability information may be included in each of the information on the POI, or a table of reliability information for each of the information may be created.
[0035]
The reliability information can be created based on an arbitrary criterion from an arbitrary viewpoint. For example, reliability information can be created from the viewpoint of an information source of information regarding POI. In this case, information for which a government agency is the source of information can be generally considered to be highly reliable. It is considered that information collected and confirmed by the person who operates the information providing server 11 to construct the POI database 18 has high reliability. It is also considered that the information obtained from the information collection company requested by the operator of the information providing server 11 has high reliability.
[0036]
Also, the reliability information can be created from the viewpoint of the update date and time of the information regarding the POI. Generally, it is considered that the newer the update date and time, the higher the reliability.However, especially for information that changes frequently, such as restaurant menus and prices, the update date and time are important criteria for determining reliability. It is believed that there is.
[0037]
Furthermore, reliability information can be created from the viewpoint of the properties of the POI itself. For example, information on historical buildings, historic sites, and the like can be considered highly reliable. In addition, information on public facilities such as parks, museums, airfields, and stations can be considered highly reliable.
[0038]
Further, reliability information can be created from the viewpoint of a system for collecting information on POI. For example, in the case of a gasoline sales price at a gas station, the reliability can be considered to be high if a system that updates daily based on information from a contracted monitor is constructed. In addition, in the case of vacancy information of a parking lot, if the vacancy information can be collected in real time from the computer system for managing the parking lot, it can be considered that the reliability is high.
[0039]
The determination or update of the reliability may be performed manually or automatically by a computer system. When automatically performed by the computer system, the reliability is determined according to a predetermined algorithm based on a predetermined criterion from the above-described viewpoint. In this case, a dedicated computer system may be constructed for determining or updating the reliability, or the reliability information processing unit 25 of the information providing server 11 may determine or update the reliability. Is also good.
[0040]
The storage means of the information providing server 11 in which the map database 17, the POI database 18, the road database 19, the traffic information database 20, the reliability information database 21 and the like are stored is an internal storage medium of the information providing server 11. Or an external storage medium. In this case, the internal storage medium and the external storage medium include a magnetic disk such as a magnetic tape and a hard disk, a magnetic drum, a CD-ROM, a CD-R / RW, an MD, a DVD-ROM, a DVD-RAM, and a DVD-R / RW. , An optical disk, an MO, an IC card, an optical card, a memory card, and the like.
[0041]
The information providing unit 13 includes a map creating unit 22 that draws a map based on the map information, a POI search unit 23 that searches for information related to a POI based on information stored in the POI database 18, and It has a route search unit 24 that searches for a route from the current position to the destination based on information stored in the road database 19, the traffic information database 20, and the like.
[0042]
Further, the information providing unit 13 performs a process of displaying the POI data searched by the POI searching unit 23 in association with the reliability information based on the search condition received from the information terminal 12, And a transmission information creation unit 26 that edits or creates information to be transmitted to the information terminal 12 in response to a request from the information terminal 12.
[0043]
The information providing unit 13 includes a destination setting unit (not shown), an estimated arrival time calculating unit, a comparing unit, a detailed information extracting unit, and the like, and various programs such as a search program for searching for a POI and a route search program. Is stored.
[0044]
In this case, when the destination information, such as a destination, a passing point, a registered point, is registered in a schedule, a calendar, an address book, a telephone directory, a registered point table, a memo, etc. The destination is set based on. Further, the estimated arrival time calculation unit calculates the time at which the vehicle will arrive at the destination based on information of the route searched by the route search unit 24, for example, based on the sum of required time data for each road section, Calculate the estimated arrival time. Note that the predicted arrival time calculation section may update the predicted arrival time at regular intervals. At this time, the estimated arrival time may be calculated again in consideration of the latest traffic congestion information, traffic regulation information, and the like stored in the traffic information database 20. Then, the comparing unit compares the predicted arrival time with the desired arrival time.
[0045]
Further, based on the information received from the information terminal 12, the detailed information extracting unit may store facility data, town page data, event data, road traffic data stored in the map database 17, the POI database 18, the traffic information database 20, and the like. Various kinds of information such as information, event schedule information, statistical congestion information, weather information, and the like, and detailed information on the information are extracted.
[0046]
On the other hand, the information terminal 12 includes a transmission / reception unit and a display control device for transmitting and receiving information related to the POI, reliability information, and other information to and from the information providing server 11. Here, the display control device causes the display device to display the information on the POI, the reliability information, and the map transmitted from the information providing server 11, and displays the current position, the destination, and the vicinity of the information terminal on the map. Display facilities, etc. Furthermore, information such as the desired arrival time, estimated arrival time, destination name, address, etc., information on POI, town page data, event data, road traffic information, event schedule information, statistical congestion information, weather information, etc. It is also desirable to display detailed information on the information.
[0047]
Here, in the present embodiment, the information providing server 11 includes a map database 17, a POI database 18, a database such as a reliability information database 21, a POI search unit 23, a route search unit 24, a reliability information processing unit 25, and the like. Means for performing a route search, a POI search, and the like in response to a request from the information terminal 12, and transmitting the result to the information terminal 12. Therefore, the configuration of the information terminal 12 is simplified. Can be Therefore, the information terminal 12 can be reduced in size and weight, and the manufacturing cost can be reduced.
[0048]
The information terminal 12 may include a database such as the map database 17 and a unit such as a route search unit 24 to perform a route search or the like. In this case, the configuration of the information providing server 11 can be simplified, and the operating cost can be reduced.
[0049]
Further, the POI database 18, road database 19, traffic information database 20, reliability information database 21, POI search unit 23, reliability information processing unit 25, destination setting unit, estimated arrival time calculation unit, comparison unit, etc. The information terminal 12 may have it instead of the providing server 11.
[0050]
Next, the operation of the reliability information display system having the above configuration will be described.
[0051]
Here, the information providing server 11 includes a map database 17, a POI database 18, a traffic information database 20, a database such as a reliability information database 21, a POI search unit 23, a route search unit 24, a reliability information processing unit 25 and the like. A case will be described in which a route search and a POI search are performed in response to a request from the information terminal 12, and reliability information is added to information about the POI and transmitted to the information terminal 12. In this case, it is assumed that the information terminal 12 is a navigation device mounted on a vehicle.
[0052]
FIG. 1 is a flowchart showing a method of displaying information in an embodiment of the present invention, FIG. 3 is a first diagram showing a display screen of an information terminal in an embodiment of the present invention, and FIG. FIG. 5 is a second diagram showing a display screen of the information terminal, and FIG. 5 is a third diagram showing a display screen of the information terminal according to the embodiment of the present invention.
[0053]
First, the operator operates the information terminal 12 to activate a program for a POI search screen stored in the information terminal 12, and displays a search condition input screen on the display device of the information terminal 12. When the program for the POI search screen is not stored in the information terminal 12, the operator accesses the information providing server 11 from the information terminal 12 via the network 27, and sends the information to the information providing server 11. The program for the stored POI search screen is activated, a search condition input screen is obtained, and displayed on the display device of the information terminal 12.
[0054]
Subsequently, the operator inputs a search condition for searching for a desired POI on a search condition input screen. Here, for example, the operator is located in a range of a radius of 20 [km] from the current position of the vehicle, has a parking lot, and has a budget of 5,000 yen per person. Suppose you are looking for a restaurant. Therefore, the operator, as a search condition, is that the distance from the current position is 20 km or less, that it is an Italian restaurant, that it has a parking lot, and that the budget per person is 5,000 yen or less. And that the recommended menu includes pasta. In this case, all search conditions may be input as and conditions, and POIs satisfying all search conditions may be displayed as candidates. It is also possible to input a search condition one by one and display a number of POIs as candidates satisfying the search condition, and gradually add a condition to narrow down the number of candidates. Good. Here, a case will be described in which all search conditions are input as and conditions.
[0055]
Then, after inputting all search conditions for searching for a desired POI on the search condition input screen, the operator operates the information terminal 12 to provide the input search conditions via the network 27. Send it to server 11. Then, the transmitting / receiving unit 14 of the information providing server 11 receives the search condition for searching for the desired POI transmitted from the information terminal 12. At this time, the terminal identification unit 16 extracts an ID key included in the signal received from the information terminal 12, and identifies a registration ID corresponding to the information terminal 12. Here, it is assumed that the operator is registered in the information display system in advance, owns a registration ID, and the information terminals 12 are also registered.
[0056]
Subsequently, upon acquiring the received search condition, the POI search unit 23 accesses the POI database 18 and searches for a POI satisfying the search condition. Here, it is assumed that a POI satisfying the search condition has been obtained as a search result. That is, a plurality of restaurants are candidates as a delicious Italian restaurant of pasta which is located within a radius of 20 [km] from the current position of the vehicle, has a parking lot, and can have dinner at a budget of 5,000 yen per person. Shall be obtained as Then, the POI search unit 23 transmits the search result to the reliability information processing unit 25.
[0057]
Subsequently, the reliability information processing unit 25 accesses the reliability information database 21 and searches for and obtains reliability information corresponding to the search result. That is, the reliability information assigned to the information on the searched plurality of candidates is obtained. Here, in the case where the reliability information is given to the entirety of the information about the POI, for example, the information about the restaurant as a candidate generally has a reliability of 80%. In the case where the reliability information has been set, the reliability information can be used as it is. When the reliability information is assigned to each item of the information related to the POI but is not assigned to the entirety of the information related to the POI, for example, the position coordinates of the restaurant, the business day of the week, the business hours, the telephone number, Items such as menu, price, taste, quality of service, atmosphere in the store, presence or absence of parking lot, etc. are given with what percentage [%] reliability is provided, but information on restaurants is total Specifically, when it is not clear what level of reliability is provided, the reliability information processing unit 25 calculates the reliability of the entire information on the POI.
[0058]
Subsequently, the reliability information processing unit 25 executes a process of displaying the POI data in association with the reliability information as a post-process of the search result in which the reliability information is combined. In this case, the reliability information processing unit 25 selects a candidate to be transmitted to the information terminal 12 as a search result. If the number of candidates obtained as a search result is large, transmitting information on all the candidates to the information terminal 12 increases the data amount and increases communication time and communication cost. In addition, when a large amount of information including low-reliability information is displayed on the display device of the information terminal 12, a kind of information flood occurs, and the operator cannot select information that is truly needed. Therefore, the reliability information processing section 25 selects candidates to be transmitted to the information terminal 12 as search results based on the reliability information.
[0059]
In this case, mainly from the viewpoint of limiting the amount of data to be transmitted to the information terminal 12, candidates are selected in order from those having a high degree of reliability, and the selected candidates are selected until the total amount of data to be transmitted reaches a predetermined value. It may be. In addition, mainly from the viewpoint of preventing information flooding, only candidates having a reliability equal to or higher than a predetermined value may be selected, or only a predetermined number of candidates having high reliability may be selected in order from the candidates having high reliability. Here, it is assumed that the reliability information processing unit 25 selects only candidates having a reliability of 50% or more, and selects candidates to be transmitted to the information terminal 12.
[0060]
Subsequently, the reliability information processing unit 25 edits information to be transmitted to the information terminal 12 as post-processing of the search result. For example, the selected candidates can be edited so as to be displayed in a list arranged in descending order of reliability. In addition, it is possible to edit so that the reliability is arranged and displayed in a list along with the names of the candidates. Further, it is possible to edit such that the display mode (color, light and shade, brightness, etc.) is changed and displayed according to the reliability. Further, when the information terminal 12 has a sound source or a speaker, it can be edited so as to generate a sound by changing a sound mode (tone color, loudness, high and low, etc.) according to the reliability. In this case, a sound is generated when the cursor is selected by placing the cursor on a candidate displayed in the list. Note that the display items in the list display can be selected as appropriate. For example, all items such as a restaurant name, address, telephone number, business day of the week, business hours, menu, price, etc. may be displayed items, or some of them may be deleted from the display items.
[0061]
It is also possible to edit the selected candidates so that the selected candidates are displayed on a map without being displayed in a list. In this case, a mark or character indicating the selected candidate is displayed at a location corresponding to the location on the map. Then, editing can be performed so that the size of the mark or the character is changed and displayed according to the reliability. For example, candidates having high reliability are displayed large, and candidates having low reliability are displayed small. Further, it is possible to edit such that the display mode (color, light and shade, brightness, etc.) of the mark or character is changed and displayed according to the reliability. For example, candidates having high reliability are displayed brightly so that visibility is high, and candidates having low reliability are displayed dark so that visibility is low.
[0062]
When the post-processing is performed by the reliability information processing unit 25, the post-processed search result combined with the reliability information is transmitted to the transmission information creation unit 26, and transmitted to the information terminal 12. Transmission information is created. Subsequently, the transmission information is transmitted to the transmission / reception unit 14, and transmitted from the transmission / reception unit 14 to the information terminal 12 via the network 27. Subsequently, the display control device of the information terminal 12, which has received the post-processed search result, displays the selected candidate on the display device as a search result display screen 30, as shown in FIG. Here, the search result display screen 30 shows an example in which the selected candidates are listed and displayed in ascending order of reliability. In this case, the candidate name column 31 contains, for example, pasta that is located within a radius of 20 [km] from the current position of the vehicle, has a parking lot, and can have dinner at a budget of 5,000 yen per person. As a delicious Italian restaurant, the names of several restaurants are arranged in descending order of reliability. Here, when the display device of the information terminal 12 is small and the size of the search result display screen 30 is limited and it is not possible to display all the candidate names at once, the display may be performed by scroll display, for example. It may be.
[0063]
In the detailed information column 32, a telephone number of the restaurant is displayed as detailed information on each candidate. The information displayed in the detailed information column 32 may be items such as an address, a business day of the week, business hours, a menu, a price, and the like. Here, if the display device of the information terminal 12 is small and the size of the search result display screen 30 is limited, many items cannot be displayed in the detailed information column 32 at one time. You may make it display by a menu type display.
[0064]
Further, an arrow is displayed in the reliability information display column 33, indicating that the higher the position of the candidate name column 31, the higher the reliability. In addition, as shown in FIG. 3, when the selected candidates are arranged and displayed in a list in descending order of reliability, the reliability information display column 33 may be omitted. As described above, the selected candidates are displayed in a list arranged in descending order of reliability, so that the operator can easily and intuitively grasp which candidate has high reliability given to information about the candidate. Can be. In this case, it can be said that the reliability information is displayed as the position of the candidate in the list.
[0065]
If the post-processed search result has been edited so as to list the reliability along with the names of the candidates, the search result is displayed as shown in FIG. In this case, the names of restaurants similar to those shown in FIG. 3 are arranged in the candidate name column 31, but not in the order of reliability, for example, in the order of the Japanese syllabary, close to the current position of the vehicle. They are arranged in order. In the reliability information display column 33, numerical values of the reliability assigned to the information on each candidate are displayed. In this case, since the reliability information is displayed as a numerical value, the operator can grasp the reliability assigned to the information on each candidate. The other points are the same as those shown in FIG.
[0066]
Further, if the post-processed search result has been edited so that the mark indicating the selected candidate is displayed at a location corresponding to the location on the map, the search result is displayed as shown in FIG. You. In this case, an example is shown in which a mark indicating a candidate having high reliability is displayed large and a mark indicating a candidate having low reliability is displayed small. 5, a map screen 34 displays a road 35, a vehicle position mark 36 indicating the current position of the vehicle, and landmarks 37 such as a gas station and a post office. At the location corresponding to the location on the map screen 34, candidate marks 38a to 38d indicating restaurants as selected candidates are displayed. In this case, from the sizes of the candidate marks 38a to 38d, the reliability given to the information on the candidate corresponding to the candidate mark 38a is the highest, and the reliability decreases in the order of the candidate mark 38b, the candidate mark 38c, and the candidate mark 38d. You can see that it goes. Note that information such as the names of candidates can be displayed on the side of the candidate marks 38a to 38d. Further, when any of the candidate marks 38a to 38d is selected by, for example, placing a cursor, information on the selected candidate can be displayed in a pop-up window. This allows the operator to intuitively and easily grasp the reliability given to the information on each candidate. In this case, it can be said that the reliability information is displayed as the size of the mark indicating the candidate.
[0067]
As described above, the candidates as the search results are displayed together with the reliability information indicating the reliability assigned to the information on each candidate, and the operator selects an appropriate candidate as the POI based on the reliability information. can do. For example, one of the delicious Italian restaurants of pasta that is located within a radius of 20 [km] from the current position of the vehicle, has a parking lot, and can have dinner at a budget of 5,000 yen per person. It can be selected as POI.
[0068]
Further, a route to the selected POI may be searched and displayed on a map. In this case, the route search is usually performed with the destination of the route as the location of the POI and the current position of the vehicle as the departure point. When the information terminal 12 stores road information and the like in a storage device and has a route search unit 24, the information terminal 12 searches for a route to the POI and displays it on a display device. On the other hand, when the information terminal 12 does not store the road information and the like and does not have the route search unit 24, the information terminal 12 sends a route search request to the information providing server 11 via the network 27. Send. Then, the route search unit 24 of the information providing server 11 accesses the road database 19 and searches for a route to the POI. Then, after the searched route is subjected to data conversion in the transmission information creation unit 26, the route is transmitted from the transmission / reception unit 14 to the information terminal 12, and displayed on the display device of the information terminal 12.
[0069]
Incidentally, the information terminal 12 may store the POI database 18 and the reliability information database 21 in the storage device, and may have the POI search unit 23, the reliability information processing unit 25, and the transmission information creation unit 26. . In this case, the POI search is performed by the information terminal 12 without accessing the information providing server 11, and the candidates as the search results are displayed together with the reliability information indicating the reliability assigned to the information on each candidate. Is displayed. Note that the storage means may be an internal storage medium of the information terminal 12 or an external storage medium. In this case, the internal storage medium and the external storage medium include a magnetic disk such as a magnetic tape and a hard disk, a magnetic drum, a CD-ROM, a CD-R / RW, an MD, a DVD-ROM, a DVD-RAM, and a DVD-R / RW. , An optical disk, an MO, an IC card, an optical card, a memory card, and the like.
[0070]
Here, it is desirable that the information stored in the POI database 18 and the reliability information database 21 be constantly updated. Therefore, the POI database 18 and the reliability information database 21 include CD-ROM, CD-R / RW, MD, DVD-ROM, DVD-RAM, DVD-R / RW, optical disk, MO, IC card, optical card, Each time the information is stored in a removable external storage medium such as a memory card and the information is updated, it is desirable to replace the information with an external storage medium storing the updated information.
[0071]
The storage medium for storing the POI database 18 and the reliability information database 21 is a rewritable medium such as a hard disk, a DVD-RAM, and an MO. It is desirable to rewrite In this case, for example, by transmitting updated information from the information providing server 11 to the information terminal 12, the updated portion can be rewritten.
[0072]
Further, the information terminal 12 may store a map database 17, a road database 19, and a traffic information database 20 in a storage device, and may have a map creation unit 22 and a route search unit 24.
[0073]
Next, the flowchart will be described.
Step S1 The information terminal 12 acquires a POI search condition.
Step S2: The information terminal 12 transmits the POI search condition to the information providing server 11.
Step S3: The information providing server 11 receives the POI search condition.
Step S4: The information providing server 11 accesses the POI database 18 and searches for the POI based on the received condition.
Step S5: The information providing server 11 acquires the search result to which the reliability information is added.
Step S6: The information providing server 11 performs post-processing of the search result.
Step S7: The information providing server 11 transmits the post-processed search result.
Step S8: The information terminal 12 receives the post-processed search result.
Step S9: The information terminal 12 displays the POI information and the reliability information.
[0074]
As described above, in the present embodiment, the reliability information is added to the information on the POI, that is, the POI data, and when the POI search is performed, the POI candidate as a search result is added to each POI data. It is displayed together with the reliability information indicating the reliability assigned. Therefore, the operator can grasp the reliability of the POI data based on the reliability information, and can select an appropriate POI candidate. Therefore, the POI data can be effectively used.
[0075]
In addition, since the reliability information is displayed in a form that can be easily and intuitively grasped, the operator can easily and intuitively grasp the reliability of the POI data.
[0076]
Furthermore, since only the POI candidates selected based on the reliability information are displayed, the operator can see only the POI candidates with high reliability, and the POIs with low reliability which become meaningless noises You don't have to look for candidates, so you don't have to worry about information floods.
[0077]
Furthermore, since only the POI candidates selected based on the reliability information are transmitted from the information providing server 11 to the information terminal 12, the amount of data to be transmitted can be reduced, the communication time is shortened, and the communication cost is reduced. Can be suppressed.
[0078]
In addition, when the operator does not need the reliability information, the operator can operate the information terminal 12 and set so as not to use the reliability information. In this case, even when the POI search is performed, the reliability information processing unit 25 does not operate, so that the reliability information is not displayed. In addition, POI candidates are not selected based on the reliability information.
[0079]
Further, the reliability information may be displayed even when the POI search is not performed. For example, on a screen that displays a searched route, a screen that displays the current position of a vehicle, a screen that displays an arbitrary area, and the like, a screen that displays a map of the display device of the information terminal 12 includes an accommodation facility on a map. When a mark indicating various facilities such as refueling facilities, commercial facilities, recreational facilities, eating and drinking facilities, parking facilities, etc. is displayed, the display mode of the mark is changed according to the reliability of the information on the corresponding facility. can do. For example, a facility having high reliability is displayed with a bright mark so that visibility is high, and a facility having low reliability is displayed with a dark mark such that visibility is low. Accordingly, the operator can, for example, intuitively understand that a refueling facility in which the mark is displayed in darkness may not be out of business and exist, and without relying on a landmark as a map, Information can be accurately grasped.
[0080]
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.
[0081]
【The invention's effect】
As described in detail above, according to the present invention, since the reliability information regarding the POI data is displayed, the reliability of the displayed POI data can be grasped, and the POI data can be effectively used. Can be.
[Brief description of the drawings]
FIG. 1 is a flowchart showing a method of displaying information according to an embodiment of the present invention.
FIG. 2 is a conceptual diagram illustrating a configuration of a reliability information display system according to an embodiment of the present invention.
FIG. 3 is a first diagram showing a display screen of the information terminal according to the embodiment of the present invention.
FIG. 4 is a second diagram showing a display screen of the information terminal according to the embodiment of the present invention.
FIG. 5 is a third diagram showing a display screen of the information terminal according to the embodiment of the present invention.
[Explanation of symbols]
11 Information server
12, 12a, 12b Information terminal
14 Transceiver
18 POI database
21 Reliability Information Database
25 Reliability Information Processing Unit

Claims (7)

(A) a POI data storage unit for storing POI data;
(B) a reliability information storage unit for storing reliability information of the POI data;
(C) a reliability information processing unit that executes a process of displaying the POI data in association with reliability information;
(D) a display device for displaying the POI data together with the reliability information. (A) an information terminal including the display device and a transmission / reception unit;
2. The reliability information display system according to claim 1, further comprising: (b) a server including the POI data storage unit, the reliability information storage unit, a reliability information processing unit, and a transmission / reception unit. The reliability information display system according to claim 1, wherein the reliability information processing unit selects POI data based on the reliability information. The reliability information display system according to any one of claims 1 to 3, wherein the reliability information processing unit displays a list of POI data based on the reliability information. The reliability information display system according to any one of claims 1 to 3, wherein the reliability information processing unit changes a display mode of POI data based on the reliability information. (A) an information terminal that transmits a POI search condition to a server, receives POI data and reliability information from the server, and displays the POI data together with reliability information;
(B) receiving the POI search condition from the information terminal, performing a search based on the POI search condition, and displaying the searched POI data in association with the reliability information; And a server for transmitting degree information to the information terminal. 7. The reliability information display system according to claim 6, wherein the server transmits POI data whose reliability information is equal to or more than a predetermined value to the information terminal.

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