WO2007132593A1 - 交通情報提供装置、方法、及びプログラム - Google Patents
交通情報提供装置、方法、及びプログラム Download PDFInfo
- Publication number
- WO2007132593A1 WO2007132593A1 PCT/JP2007/055810 JP2007055810W WO2007132593A1 WO 2007132593 A1 WO2007132593 A1 WO 2007132593A1 JP 2007055810 W JP2007055810 W JP 2007055810W WO 2007132593 A1 WO2007132593 A1 WO 2007132593A1
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- WIPO (PCT)
- Prior art keywords
- information
- traffic
- route
- user
- traffic information
- Prior art date
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Classifications
-
- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/09—Arrangements for giving variable traffic instructions
- G08G1/0962—Arrangements for giving variable traffic instructions having an indicator mounted inside the vehicle, e.g. giving voice messages
- G08G1/0967—Systems involving transmission of highway information, e.g. weather, speed limits
- G08G1/096733—Systems involving transmission of highway information, e.g. weather, speed limits where a selection of the information might take place
- G08G1/09675—Systems involving transmission of highway information, e.g. weather, speed limits where a selection of the information might take place where a selection from the received information takes place in the vehicle
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C21/00—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00
- G01C21/26—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00 specially adapted for navigation in a road network
- G01C21/34—Route searching; Route guidance
- G01C21/3407—Route searching; Route guidance specially adapted for specific applications
- G01C21/3415—Dynamic re-routing, e.g. recalculating the route when the user deviates from calculated route or after detecting real-time traffic data or accidents
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C21/00—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00
- G01C21/26—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00 specially adapted for navigation in a road network
- G01C21/34—Route searching; Route guidance
- G01C21/36—Input/output arrangements for on-board computers
- G01C21/3691—Retrieval, searching and output of information related to real-time traffic, weather, or environmental conditions
-
- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/09—Arrangements for giving variable traffic instructions
- G08G1/0962—Arrangements for giving variable traffic instructions having an indicator mounted inside the vehicle, e.g. giving voice messages
- G08G1/0968—Systems involving transmission of navigation instructions to the vehicle
- G08G1/096805—Systems involving transmission of navigation instructions to the vehicle where the transmitted instructions are used to compute a route
- G08G1/096827—Systems involving transmission of navigation instructions to the vehicle where the transmitted instructions are used to compute a route where the route is computed onboard
-
- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/09—Arrangements for giving variable traffic instructions
- G08G1/0962—Arrangements for giving variable traffic instructions having an indicator mounted inside the vehicle, e.g. giving voice messages
- G08G1/0968—Systems involving transmission of navigation instructions to the vehicle
- G08G1/096833—Systems involving transmission of navigation instructions to the vehicle where different aspects are considered when computing the route
- G08G1/096844—Systems involving transmission of navigation instructions to the vehicle where different aspects are considered when computing the route where the complete route is dynamically recomputed based on new data
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
- G09B29/00—Maps; Plans; Charts; Diagrams, e.g. route diagram
- G09B29/10—Map spot or coordinate position indicators; Map reading aids
- G09B29/106—Map spot or coordinate position indicators; Map reading aids using electronic means
Definitions
- Traffic information providing apparatus method, and program
- the present invention relates to a traffic information providing apparatus that provides traffic information to a user, and in particular, in a mobile terminal device such as a car navigation system (hereinafter referred to as “car navigation”), traffic information by a suitable method according to the user's situation. Relating to technology.
- a mobile terminal device such as a car navigation system (hereinafter referred to as “car navigation”)
- FIG. 35 is a diagram illustrating a configuration example of an apparatus disclosed in Patent Document 1.
- a route setting unit 11 is means for setting a user's route.
- the traffic information providing unit 13 is a means for providing traffic information such as VICS information.
- the on-travel-traffic congestion determination unit 12 is a means for determining whether there is traffic jam information on the set route.
- the congestion degree setting unit 16 is a means for setting the degree of congestion for searching for a detour route.
- the congestion degree setting unit 16 stores the set congestion degree in the congestion degree accumulation unit 17.
- the detour route search determination unit 14 searches for the detour route in consideration of the degree of the traffic jam and the set traffic jam level, and displays it on the display unit 15.
- FIG. 36 is a diagram showing an example of a screen displayed on the display unit 15. As shown in screen 1 in FIG. 36, the user sets the degree of traffic congestion divided into three stages, for example, “high”, “medium”, and “low”. When traffic jams occur on the set route, the searched detour route is displayed as shown in screen 2 when the set traffic jam level is satisfied.
- Patent Document 1 Japanese Unexamined Patent Publication No. 2003-4469
- Patent Document 1 describes a detour route when there is a traffic jam as described above.
- the user sets one of several levels designed in advance, and controls whether or not a detour is provided according to the set traffic level. Therefore, although the level is set by the user himself, it does not change according to the situation.
- the level of congestion varies depending on the user's situation. In other words, if there is some traffic jam in unfamiliar land, the user will travel on the traffic jam route without using the detour route. In addition, many users have a decent route that is well conditioned at congested points where the detour route is in a bad condition, such as when the detour route is extremely narrow, there are many turns to the left or right, and the route is in a residential area. Compared to the point, it is considered that it will endure a higher level of traffic congestion and proceed on the traffic congestion road.
- the level of traffic congestion that requires traffic information such as detour route information varies depending on the user's situation, and the route is automatically activated according to the fixed level set by the user. Doing so would hinder driving tasks.
- the present invention has been made in view of such circumstances, and an object thereof is to provide a traffic information providing apparatus that provides traffic information by a suitable method in accordance with a user's situation.
- a traffic information providing apparatus is a traffic information providing apparatus that provides traffic information, and obtains traffic event information that represents an event related to traffic.
- a traffic information providing unit that provides the user with traffic information related to the traffic event information
- an information provision state storage unit that stores the traffic information provided by the traffic information providing unit, and a current location of the user
- Position information detecting means for sequentially detecting position information
- movement history accumulating means for accumulating the detected sequence of position information as a movement history
- path accepting means for accepting an expected movement route of the user, and the information Drive along the expected travel route based on the provided traffic information stored in the provision status storage means and the travel history stored in the travel history storage means.
- the traffic event information is determined to have traveled the expected travel route, and To provide traffic information Traffic information provision rule calculating means for calculating the traffic rules, and when new traffic event information is acquired, traffic information related to the new traffic event information is provided by the traffic information providing means based on the rules.
- Information provision control means for controlling the information.
- the traffic information providing apparatus can provide appropriate traffic information according to the user's situation by controlling the provision of information related to traffic based on the calculated rules. .
- FIG. 1 is a diagram showing an example of a configuration of a traffic information providing apparatus according to Embodiment 1 of the present invention.
- FIG. 2 is a diagram for explaining traffic information provided by the traffic information providing unit.
- FIG. 3 is a diagram illustrating an example of traffic jam information represented in a table.
- FIG. 4 is a diagram showing the position of a user who is moving.
- FIG. 5 is a diagram for explaining user movement.
- FIG. 6 is a table showing the detected position information.
- FIG. 7 is a diagram showing a movement history stored in a movement history storage unit.
- FIG. 8 is a diagram showing another movement of the user.
- FIG. 9 is a diagram showing an example of a movement history.
- FIG. 10 is a diagram showing an example of a screen display range of a car navigation system.
- FIG. 11 is a diagram showing movement when traveling on a detour route.
- FIG. 12 is a diagram for explaining a state in which traffic jam information is provided.
- FIG. 13 is a diagram for explaining a state in which traffic jam information is provided.
- FIG. 14 is a diagram for explaining the calculation of the region currently displayed based on the current position and the scale of the screen display.
- FIG. 15 is a diagram showing traffic jam information accumulated as an information provision state history in an information provision state accumulation unit.
- FIG. 16 is a diagram showing user movement. 17] FIG. 17 is a diagram showing a part of the information recognition history stored in the information recognition history storage unit.
- FIG. 18 is a diagram showing an example of the information recognition history on the detailed display screen.
- FIG. 19 is a diagram for explaining whether or not the vehicle has traveled while avoiding traffic congestion.
- (A) is a diagram showing an example of a route accepted by the route acceptance unit, and (b) is a diagram.
- FIG. 5C is a diagram showing an example of a history of actual traveling by a user, and FIG. 5C is a diagram showing an example of information stored in an information recognition history storage unit.
- FIG. 20 is a diagram for explaining the determination of whether or not the vehicle has traveled while avoiding traffic congestion.
- (A) is a diagram showing an example of a route accepted by the route accepting unit, and (b) is a diagram.
- FIG. 5C is a diagram showing another example of a history of actual travel by the user, and FIG. 5C is a diagram showing an example of information stored in the information recognition history storage unit.
- FIG. 21 is a table listing information accumulated in the information recognition history accumulation unit.
- FIG. 22 is a diagram for explaining the calculation of the traffic congestion providing model.
- FIG. 23 is a diagram showing an example of information provision.
- FIG. 24 is a diagram showing another example of information provision.
- FIG. 25 is a flowchart showing a learning process.
- Fig. 26 is a flowchart showing the information provision model calculation process.
- FIG. 27 is a flowchart showing the information provision control process.
- FIG. 28 is a diagram showing movement of a user at a certain point.
- FIG. 29 is a diagram showing a user information recognition history shown in this example.
- FIG. 30 is a diagram for explaining a user's recognition of a traffic jam.
- FIG. 31 is a diagram for explaining user's traffic jam recognition.
- FIG. 32 is a diagram showing an information recognition history.
- FIG. 33 is a diagram showing a minimum configuration for carrying out the present invention.
- FIG. 34 is a diagram showing another example of the minimum configuration for carrying out the present invention.
- FIG. 35 is a diagram showing an example of the configuration of a conventional traffic jam information providing apparatus.
- FIG. 36 is a diagram showing a display example by a conventional traffic jam information providing apparatus. Explanation of symbols
- a traffic information providing apparatus is a traffic information providing apparatus that provides traffic information, a traffic event information acquiring unit that acquires traffic event information representing an event related to traffic, and the traffic event information.
- Traffic information providing means for providing relevant traffic information to the user, information providing state storage means for storing the traffic information provided by the traffic information providing means, and a position for sequentially detecting position information indicating the current position of the user Information detection means, movement history storage means for storing the detected position information series as a movement history, route reception means for receiving the expected movement route of the user, and information provision state storage means
- a detour route determination unit for determining whether the vehicle traveled or detoured based on the provided traffic information and the movement history stored in the movement history storage unit; and the detour route
- a rule for providing traffic information is calculated using the traffic event information when it is determined that the vehicle has traveled on the expected travel route and the traffic event information when it is determined that the vehicle has made a detour.
- the traffic information providing apparatus further includes an information recognition determination unit that determines the user's cognitiveness with respect to the traffic information stored in the information provision state storage unit, and the recognition that is determined by the information recognition determination unit.
- Information recognition history storage means for accumulating sexuality, and the detour route travel determination means intentionally travels on the expected travel route using the cognition stored in the information recognition history storage means.
- the traffic information provision rule calculating means determines the traffic event information when the detour route travel determining means determines that the vehicle has intentionally traveled on the expected travel route.
- a rule for providing traffic information may be calculated using the traffic event information when it is determined that a detour is intentionally made.
- the traffic information providing apparatus further includes a destination prediction means for predicting a future movement route based on the movement history and the current position information detected by the position information detection means.
- the route accepting unit may use the route predicted by the destination predicting unit as the accepting route.
- the traffic event information represents at least one of a stage value, a length, a time, and a speed indicating a degree of the traffic jam
- the traffic information is traffic jam information related to the traffic jam.
- the traffic information rule calculating means calculates a threshold value for determining whether or not to provide traffic information as the rule, and the information providing control means receives the new traffic event information when the new traffic event information is acquired.
- the traffic information related to the new traffic event information by the traffic information providing means when the stage value, length, time, or speed representing the degree of traffic congestion represented by the traffic information is less than the threshold. May be suppressed.
- the traffic event information further represents a traffic jam occurrence position
- the traffic jam information rule calculating means calculates independent rules for a plurality of traffic event information representing different positions.
- the information provision state storage means further includes state information representing a state in which the traffic information is provided by the traffic information provision means, and a recognition confidence value representing cognition according to the state.
- the traffic information provision rule calculation means stores the traffic event information when it is determined that the vehicle has intentionally traveled along the expected travel route, and the traffic event information when it is determined that the vehicle intentionally detours. May be used by weighting with the recognition confidence value.
- the information providing means includes display means for displaying the traffic information on a screen, and the mode information includes a display position, a display time, a display timing, and a scroll displayed on the display means. Even if it is information including at least one of presence or absence.
- the information providing means includes voice providing means for providing the traffic information by voice, and the mode information includes at least one of a providing place, a providing time, and a providing timing provided by the voice providing means. The information may be included.
- the degree of accuracy with which the traffic information is recognized by the user can be reflected in the cognition using the recognition confidence value. Compared to expressing cognition, it is possible to control the provision of traffic information with higher accuracy.
- the information provision state accumulation unit further accumulates a provision position indicating a travel point when the traffic information is provided by the traffic information provision unit
- the traffic information provision device further includes: The location information detecting unit and a detourable point calculating unit that calculates an avoidable point that can avoid a traffic jam based on the route receiving unit, and the detour route traveling determination unit is configured such that the provided position is the avoidable point. If it is earlier, it may be judged as a detour.
- FIG. 1 is a diagram illustrating an example of a system configuration of the traffic information providing apparatus according to the present embodiment. Hereinafter, each component will be described first, and then the operation flow of the present invention will be described.
- the traffic event information acquisition unit 101 is means for acquiring information relating to a traffic event. For example, in the case of car navigation systems, it is possible to obtain information such as traffic information such as traffic jam information, construction, and traffic closure, such as VICS (Vehicle Information And Communication System) information via FM and optical beacons.
- the traffic event information acquisition unit 101 is, for example, a means for acquiring traffic information, information on traffic regulations, etc. (hereinafter referred to as traffic event information).
- the traffic information providing unit 103 is a means for providing the user with various traffic information including the traffic event information acquired by the traffic event information acquiring unit 101, for example, as a display screen such as a car navigation system. Specific examples will be described below with reference to the drawings.
- FIG. 2 is a diagram for explaining the traffic information provided by the traffic information providing unit 103.
- the arrows indicate traffic information related to traffic in the traffic event information. For example, in Fig. 2, an arrow indicates that there is traffic congestion from the intersection "Green 1" to "Hana 1". Also, from the intersection "Minami 3machi” to the intersection “Minami 1machi” and from “Xihua 2" to “Xihua 1" Shows that there is a traffic jam.
- traffic congestion information in VICS represents a traffic congestion location in a link format (called a VICS link) that connects a predetermined point (node) to a node.
- a VICS link a link format
- the asterisk represents a node.
- the intersection “Hana 1 intersection” is represented by the node ID “N (node) 25”.
- the VIC S link is represented by a link that connects each of these intersections and landmarks such as “home” and “Hanamachi company”.
- the length of the connected link represents the distance of traffic jam. For example, the traffic jam in “Minami 1 town (N31)” is congested over a long distance with “Minami 3 town (N33)” and “Minami 2 town (N 32)”. It is common.
- the VICS link is generally acquired as information indicating the degree of traffic jam (traffic jam level) at the point from the average speed of vehicles between the links.
- Congestion levels are, for example, ⁇ conventional '' with an average speed of 40 km or more and ⁇ congestion '' with an average speed of 20 km to less than 40 km, and ⁇ congestion '' with a congestion level of 1 with an average speed of less than 20 km.
- a traffic jam is generally represented by an arrow on the route and a degree of the traffic jam is represented by a color, and this embodiment will be described in a similar manner.
- Green 1 intersection (N24)” to “Hana 1 intersection (N25)” is “10 minutes
- “South 3 town (N33)” to “South 1 town (N31)” is “20 minutes”
- “Western “2” to “Seika 1” indicate “5 minutes” and the congestion time is shown.
- FIG. 3 is a table showing the traffic information shown in FIG.
- Each traffic jam location is represented by a traffic jam ID.
- the traffic jam ID “001” represents the traffic jam information from “Green 1 intersection (N24)” to “Hana 1 intersection (N 25)” in Fig. 2, and the traffic congestion level “N24 to N25” “2 (traffic jam)”, traffic distance “lkm”, travel time “10 minutes”.
- the traffic jam ID “002” represents “Green 1 intersection (N23)” to “Green 1 intersection (N24)”. 24 to N25 ”, traffic level“ 0 (as usual) ”, traffic distance“ 0km ”, travel time“ 0 minutes ”.
- the traffic event information acquisition unit 101 acquires the traffic jam information provided from VICS in this way.
- a route receiving unit 106 is means for receiving a destination, a moving route, and the like.
- a route search to a destination is performed by a user destination setting or the like, and the route to the searched destination is input.
- the position information detection unit 110 is means for detecting the current position of the user.
- a GPS that detects the current position of the user is provided, and latitude and longitude information is detected at a predetermined interval such as about 1 second.
- the position information detection unit 110 is configured by a GPS or the like, and detects latitude and longitude information as position information along with the movement of the user at a predetermined interval.
- the detour route search unit 105 is a means for searching for a detour route when there is traffic jam on the route from the route received by the route reception unit 106 and the traffic jam information acquired by the traffic event information acquisition unit 101. is there.
- car navigation systems generally have a function (reroute function) that re-searches the route to the destination based on information obtained from VICS information.
- the detour route search unit 105 in the present embodiment is also a means for performing reroute in the same manner.
- the traffic information provision control unit 102 is means for controlling provision of information performed by the traffic information provision unit 103.
- the traffic information providing unit 103 guides the user to the destination while displaying a route to the destination, traffic event information, a detour route, and the like on the display screen, for example. This will be described below with reference to the drawings.
- FIG. 4 shows the position of the user on the way from “home” to “Hanamachi company”.
- the position information detection unit 110 thus detects position information associated with the movement of the user. Also, for example, the user inputs the destination “Hanamachi company” and the intersection “Green 4”, “Green 3”, “Green 2”, “Green 1”, “Hana 1”, “Hana 2” from “Home”.
- the route to the “Hanamachi Company” is being searched.
- the searched route is indicated by a thick black line.
- the route receiving unit 106 receives these searched routes and displays them on the display screen under the control of the traffic information provision control unit 102.
- the bypass route search unit 105 searches for a bypass route. As shown by the black thick line on the other side, as a detour, go through the intersections “Green 4”, “Green 3”, “Green 2”, “Hana 4”, “Hana 3”, “Hana 2” The route to reach "is searched.
- the traffic information providing apparatus guides the user to the destination while displaying the traffic jam information acquired by the traffic event information acquiring unit 101, the searched route, and the like. Based on the information, the route is selected and moved. For example, when a traffic jam occurs on the route, the detour route provided to avoid the traffic jam is selected and the Hanamachi company is urged.
- some users do not always use a detour route even if a traffic jam occurs. If there is some traffic jam, it may move without using the detour route. For such users, for example, rerouting that is automatically performed becomes unnecessary, and starting rerouting automatically hinders driving tasks. Especially in the case of car navigation systems, it is preferable to suppress unnecessary information provision in order to concentrate on driving. On the other hand, there is a case where a detour route is used even in a slight traffic jam. For such users, reroute is necessary information, and operations during driving are dangerous.
- the degree of congestion that can be allowed by the user varies, and it is necessary to control information such as a detour route according to the degree of congestion that the user can accept. Therefore, in this embodiment, based on the provided traffic event information and the user's movement history, a rule for providing information accompanying the traffic event information such as a detour route (hereinafter referred to as an information provision model) is calculated. Then, information provision is controlled based on the calculated information provision model.
- an information provision model a rule for providing information accompanying the traffic event information such as a detour route
- a movement history accumulating unit 111 is means for accumulating position information associated with a user movement detected by the position information detecting unit 110 as a movement history.
- position information detected by latitude and longitude is converted into nodes based on the map information stored in the map information storage unit 112, and stored as a sequence of nodes. This is because the latitude and longitude detected by GPS etc. have an error and the amount of information is enormous, so the ease of matching is taken into account. Specific examples will be described below with reference to the drawings.
- FIG. 5 is a diagram for explaining the movement of the user.
- the detected position information is indicated by a white circle.
- the user crosses the intersections “Green 1” and “Hana 1” to avoid traffic jams. It turns right at the difference point “Green 3”, passes through “Green 2”, turns left at “Hana 4”, and travels around “Hana 3” and “Hana 2”. Further, the position information is detected along with this movement.
- FIG. 6 is a table showing the detected position information.
- the latitude and longitude information and time information detected by GPS are detected as “135 degrees 13 minutes 10 seconds” east longitude and “34 degrees 24 minutes 15 seconds” north longitude at the date “2005, 20:45”.
- the east longitude “135 degrees 13 minutes 10 seconds” and the north latitude “34 degrees 24 minutes 15 seconds” are the positions indicating the “home” of the node “N100”.
- the date is “135 degrees 15 minutes 24 seconds” east longitude detected at 7:50 on the 20th of 2005, and the north latitude “34 degrees 22 minutes 14 seconds” is the intersection “green 4” of “N21”.
- latitude / longitude information detected based on map information or the like is converted into a node, and a movement history is accumulated in a sequence of nodes.
- FIG. 7 is a diagram showing the movement history accumulated in the movement history accumulation unit 111.
- the movement shown in Fig. 5 is stored as movement history.
- the history ID “001” leaves “Home” at “7:45”, “N2l ⁇ 4)”, “N22 ⁇ 3)”, “N23 3 ⁇ 42)”, “N28,)”,
- the travel history of arriving at “N51 (Hanamachi Company)” via “27 (Hana 3)” and 26 (Hana 2) ” is accumulated.
- FIG. 8 is a diagram showing another movement.
- the traffic conditions between the intersections "Green 1" and “Hana 1” are as follows: congestion level “1 (congested)", congestion distance "500m”, congestion time "5 minutes” It is assumed that the user whose level is low indicates that he / she has moved as it is without using the detour route if there is a traffic jam of this level.
- the user turns right at the intersection “Green 3”, then turns left at “Green 2”, indicating that “Green 1”, “Hana 1”, and “Hana 2” are passing as they are. Yes.
- FIG. 9 shows the movement history shown in FIG. In Fig. 9, the history ID “010” and “Home” depart at “7:35”, “N2l ⁇ 4)”, 22 (Green 3) ”,“ N23 (Green 2) ”,“ N24 (Green 1 ) ”, ⁇ 25 (Hana 1)”, “N26 (Hana 2)”, and the movement history of arrival at “N51 (Hanamachi company)” is accumulated.
- the detour route information is unnecessary for the user, and the user needs to suppress it.
- the degree to which traffic jams are allowed varies depending on the user.
- the traffic jam information and the movement history are provided.
- An information provision model is calculated.
- a frame indicated by a black square is, for example, a car navigation display screen.
- the screen moves as the user moves, and the user is generally guided while displaying a map and route.
- various display modes such as 2D, 3D, and bird's-eye view, and it is general that the scale of the map can be set arbitrarily.
- the display is a 2D display, and further a detailed display showing the vicinity of the user in detail.
- the user turns left at the intersection "Green 2" and still recognizes that there is a traffic jam between the intersections "Green 1" and "Hana 1" ahead. Not done. Only after a while, it is known that there is a traffic jam between “Green 1” and “Hana 1”.
- FIG. 11 shows the movement when traveling on the detour route.
- the traffic congestion between the intersections “Green 1" and “Hana 1” is lower than that in Fig. 10.
- the display screen is indicated by a square frame, and it is assumed that the detailed display is the same as in FIG.
- the user goes straight at the intersection “Green 2”, turns left at “Hana 4”, that is, is traveling on a detour route.
- the user watching the detailed display selects the route without knowing that there is a traffic jam between the intersections “Green 1” and “Hana 1”.
- the location and the level of the traffic jam are known in advance, even if the traffic jam is proceeding without selecting the detour route, in this case the traffic jam is low.
- the fact that the detour route is taken is accumulated as a movement history. Therefore, even when the information provision model is calculated using such a history, it is impossible to accurately calculate the degree to which the user's traffic jam is allowed.
- the information provision model is calculated using information on whether or not the user has passed traffic with the perception of traffic jam.
- an information provision state accumulation unit 104 is means for accumulating the state of information provided by the traffic information provision unit 103 as a history (hereinafter referred to as an information provision state history). For example, traffic jam information is generally displayed as an arrow on the display screen. Therefore, in the present embodiment, it is determined whether or not the traffic information is displayed on the screen. If the traffic information is displayed, it is assumed that the user has recognized the traffic and the traffic information is stored as provided. Hereinafter, this will be described with reference to the drawings.
- FIG. 12 is a diagram for explaining a state in which traffic jam information is provided.
- the user is currently located at the point that passed the intersection “Green 4”.
- the display screen indicated by a square frame is a wide area display that displays a map over a wide area.
- the user can grasp the traffic jam information ahead of the route.
- an arrow indicates on the screen that there is a traffic jam between the intersections “Green 1” and “Hana 1” on the travel route. Since it can be considered that the traffic jam has been recognized, the traffic jam information is stored in the information provision status storage unit 104.
- Figure 13 shows the same screen and traffic jam information as in Figure 12.
- the screen in Fig. 13 is a heading-up display in which the north direction is always displayed on the screen.
- the vertical axis can be represented by latitude and the horizontal axis can be represented by longitude.
- the area from 135 degrees 22 minutes 00 seconds east to 135 degrees 25 minutes 00 seconds east, 35 degrees 10 minutes 00 seconds north to 35 degrees 12 minutes 00 seconds north is displayed.
- intersection “Green 1” where traffic jam occurs is 135 degrees 24 minutes 10 seconds east longitude, 35 degrees 17 minutes 10 seconds north latitude, and “Hana 1” is 135 degrees 24 minutes 10 seconds east longitude 35 degrees 17 minutes north latitude. 20 seconds and included in the displayed screen area Will be. Therefore, information indicating that the traffic jam location is displayed is accumulated.
- FIG. 14 is a diagram for explaining calculation of the currently displayed area from the current position and the scale of the screen display.
- car navigation systems display map information around the current position on the screen at a set scale.
- the user is located at 135 degrees 23 minutes 30 seconds east longitude and 35 degrees 10 minutes 30 seconds north latitude.
- the scale of the screen display in Fig. 14 is set to "2000 meters". This is a setting that displays an area of about 2000 meters forward and left and right from the user's position. From the current position and scale of the screen, the upper left corner of the screen is calculated as 135 degrees 22 minutes 00 seconds east, 35 degrees 12 minutes 00 seconds north latitude, the upper right part of the screen is calculated 135 degrees 25 minutes 00 seconds east, 35 degrees 12 minutes 00 seconds north (Calculated as about 1500 meters at a time).
- the lower left corner of the screen is calculated as 135 degrees 22 minutes 00 seconds east, 35 degrees 10 minutes 00 seconds north, and the lower right part of the screen is calculated 135 degrees 25 minutes 00 seconds east, 35 degrees 10 minutes 00 seconds north. Judgment is made based on whether or not a traffic jam is included in the display area of this screen.
- FIG. 15 shows traffic jam information accumulated as an information provision state history in the information provision state accumulation unit 104.
- the information displayed on the screen and its status are stored.
- a traffic jam ID “001” is stored as a traffic jam location “N24 to N25”, a traffic jam distance “lkm”, a traffic jam time “10 minutes”, and a provided status “screen display”.
- the provision state is accumulated using information on whether or not a traffic jam has occurred on the accepted travel route and is displayed on the screen. Nonetheless, the user does not always move along the accepted route. For example, it is possible to accumulate all the traffic jam information that is displayed on the screen and can be estimated to be recognized by the user, and later select information to be considered again by referring to the movement history.
- the detour route travel determination unit 107 recognizes the traffic jam from the traffic jam information stored in the information provision status storage unit 104 and the travel history stored in the travel history storage unit 111. This is means for determining whether or not the vehicle has traveled on the detour route.
- a branching point hereinafter referred to as a final detourable point
- the information recognition determination unit 1131 determines whether or not the user has recognized the traffic jam before passing through the calculated final traffic jam avoidance point.
- These pieces of information (referred to as information recognition history) are stored in the information recognition history storage unit 113. Then, based on the accumulated information recognition history and travel history, it is determined whether or not the user has avoided the traffic jam. The following is explained using FIG.
- FIG. 16 is a diagram showing the movement of the user, similar to FIG. In FIG. 16, the route passing through “Green 1” and “Hana 1” after turning left at the intersection “Green 2” received by the route receiving unit 106 is indicated by black lines and bold lines. This indicates that there is a traffic jam between the intersections “Green 1” and “Hana 1”. On the other hand, go straight at the intersection “Green 2”, turn left at “Hana 4”, and the detour route passing through “Hana 3” and “Hana 2” is indicated by a black dotted line.
- the detour route travel determination unit 107 calculates a final detourable point from these input routes and detour routes. In this case, it is branched at the intersection “Green 2”, and this intersection “Green 2” becomes the final detourable point. Then, it is judged whether or not a traffic jam has been recognized before passing through the final detourable point.
- FIG. 17 shows a part of the information recognition history stored in the information recognition history storage unit 113.
- information is given as being provided before the last detourable point. Here, it is indicated by “circle” in the “bypassable” column.
- the traffic jam is a traffic jam degree that the user wants to avoid.
- the traffic jam is less than the user's concern. For example, it is possible to perform control such as suppressing the detour route thereafter.
- FIG. 18 shows an information recognition history in the case of the detailed display screen as shown in FIG. As in Fig. 17, traffic information between the intersections "Green 1" and “Hana 1” is displayed, and after a while, it is displayed on the screen.
- traffic information between the intersections "Green 1" and “Hana 1” is displayed, and after a while, it is displayed on the screen.
- Green 2 which is the final detour point. "Is recorded, and the action taken by the user later is not taken into consideration.
- FIGS. 19 (a) to 19 (c) are diagrams for explaining whether or not the vehicle has traveled while avoiding traffic jams.
- FIG. 19A shows a route received by the route receiving unit 106. Departing “Home”, passing through “Green 4”, Intersection “Green 3”, Intersection “Green 2”, Intersection “Green 1”, Intersection “Hana 1”, Intersection “Hana 2” The route to reach is entered.
- FIG. 19 (c) information between the intersections “Green 1 (N24)” and “Hana 1 (N25)” accumulated in the information recognition history accumulation unit 113 is accumulated. There is a traffic jam
- “circular mark” is added to the detourable column that the user recognizes before the final detourable point.
- FIG. 19 (b) a history of actual traveling by the user is accumulated.
- Fig. 19 (b) departure from the "home” for the movement history ID "001", intersection “Green 4", intersection “Green 3", intersection “Green 2", intersection “Hana 4" ”, The intersection“ Hana 3 ”, the intersection“ Hana 2 ”, and the history of reaching“ Hanamachi Company ”is accumulated.
- the detour route travel determination unit 107 gives information indicating that the vehicle has traveled while avoiding traffic jams. For example, “circle” is recorded in the “bypass history” column in FIG. 19 (c). In this way, information on whether or not the detour is finally made is added to the information recognition history, and the information recognition history is accumulated again.
- FIGS. 20A to 20C are diagrams for explaining determination of whether or not the vehicle has traveled while avoiding traffic jams using the situation shown in FIG.
- FIG. 20 (a) shows the route accepted by the route accepting unit 106, as in FIG. 19 (a). Depart from “Home” and pass through the intersection “Green 4”, the intersection “Green 3”, the intersection “Green 2”, the intersection “Green 1”, the intersection “Hana 1” and the intersection “Hana 2”. The route to “company” is entered.
- FIG. 20 (c) information between the intersections “Green 1 (N24)” and “Hana 1 (N25)” accumulated in the information recognition history accumulation unit 113 is accumulated.
- “circular mark” is added to the detourable column because the user knows before the last detourable point.
- the degree of congestion is “5 minutes”, “1 km”, and “1 (congested)”.
- FIG. 20 (b) a history of actual running by the user is accumulated.
- Fig. 20 (b) departure from “Home” for the movement history ID "010”, intersection “Green 4", intersection “Green 3", intersection “Green 2", intersection “Green 1” ”, The intersection“ Hana 1 ”, the intersection“ Hana 2 ”, and the history of reaching“ Hanamachi Company ”is accumulated. Comparing both routes shows that the user actually moved along the entered route. In other words, there was a traffic jam between “Green 1” and “Hana 1”, which was recognized in advance, but if this level of traffic jams, the user shown in this example did not bypass and passed along the route. Can be considered. Therefore, in the detour route travel determination unit 107, there is a traffic jam. Information that the vehicle has traveled without avoiding the vehicle is given. For example, “Buck” is recorded in the “Bypass History” field in FIG. 20 (c).
- the traffic information provision rule calculation unit 108 provides information such as the degree of traffic congestion that provides traffic jam information and the like based on information on whether or not the user actually detoured at the detour route travel determination unit 107. It is a means for calculating provision rules.
- the calculated information provision model is accumulated in the traffic information provision rule accumulating unit 109.
- FIG. 21 lists information stored in the information recognition history storage unit 113.
- the information recognition history storage unit 113 stores traffic congestion information that is displayed before the last detourable point when the user has traveled in the past and can be estimated to have been recognized by the user.
- the traffic jam ID “001” is the information recognition history shown in FIG. 19, the traffic jam location “N24 to N25”, traffic jam time “10 minutes”, traffic jam level “2 (traffic jam)”, provision status “screen display”, detourable “ ⁇ ” and detour history “ ⁇ ” indicate that the user has detoured after recognizing the traffic jam.
- the information recognition history provided at each of the seven points of traffic jam IDs “007”, “015”, “018”, “019”, “020”, “021” is shown.
- the traffic jam ID “010” is the information recognition history shown in FIG. 20, and the traffic jam location “N24 to N25”, traffic jam time “5 minutes”, traffic jam level “1 (congested)”, provision status “screen display”, detourable “ “O” and detour history “X” indicate that the user has moved without detouring after recognizing the traffic jam.
- information recognition histories provided at each of the seven points of traffic jam IDs “011”, “012”, “016”, “017”, “022”, and “023” are shown.
- the traffic information provision rule calculation unit 108 calculates the degree of traffic congestion that provides traffic congestion information and the like based on the information indicating whether or not the user has detoured.
- the information provision model is calculated using the traffic time.
- the traffic congestion level is simply divided into three stages, and the traffic congestion distance depends on the route, and traffic congestion time is used here in order to calculate a user-specific information provision model more flexibly. This will be described below with reference to FIG.
- FIG. 22 is a diagram for explaining calculation of a traffic jam providing model.
- the horizontal axis represents the traffic time and the vertical axis represents the frequency.
- the traffic jam ID “00” shown in FIG. Since “1”, “015”, “018” are detours and the traffic time was “10 minutes” at each point, the frequency of “10 minutes” in the detours was 3 times. Become.
- the frequency of each congestion time from the information shown in Fig. 21, "8 minutes” is “1 time”, “9 minutes” is “1 time”, “11 minutes” is “1 time”, “12 minutes” Becomes “once”. Also, based on these frequencies and congestion time, the average congestion time when avoiding congestion is calculated as “10 minutes”.
- the traffic jam IDs “010” and “017” shown in FIG. 21 are the history of no detour, and the traffic time was “5 minutes” at each point.
- the frequency of traffic time “5 minutes” is 2 times.
- the frequency of each traffic jam time is calculated from the information shown in FIG. 21, “3 minutes” becomes “2 times” and “4 minutes” becomes “3 times”.
- the average traffic time when the traffic is not avoided is calculated as “4 minutes” based on the frequency and traffic time.
- the time threshold “7 minutes” when the user normally avoids the traffic jam can be calculated from the information on whether or not the past user avoided the traffic jam.
- the traffic time threshold value is stored in the traffic information provision rule accumulating unit 109 as information provision rules (information provision model).
- the threshold value of each class was calculated as the average value of both classes, and further calculated as the middle of the average value.
- Nanare For example, a conventionally known method for calculating threshold values of two classes such as SVM (Support Vector Machine) may be used.
- the traffic information provision control unit 102 refers to the information provision model stored in the traffic information provision rule storage unit 109 and controls the traffic information to be provided. This will be described below with reference to the drawings.
- FIG. 23 is a diagram illustrating an example of information provision.
- Figure 23 shows the car navigation screen.
- a traffic jam occurs between “Narayama 3” and “Narayama 2” on the travel route and is acquired as traffic event information.
- the traffic time is “9 minutes”.
- the threshold “7 minutes” of the average traffic jam time is accumulated as described above, and since this threshold is exceeded, for example, detours passing through “Tomino 2” and “Tomino 1”. Calculate the route and Offer to the.
- FIG. 24 is a diagram showing another example of information provision.
- the situation and geographical relationship are the same as in Figure 23.
- the degree of traffic congestion between "Narayama 3" and “Narayama 2" is different.
- the traffic jam that occurred in Figure 24 is assumed to be “3 minutes”.
- the traffic information provision rule storage unit 109 stores the threshold “7 minutes” of the average traffic jam time as described above, and since it is less than this threshold, it is not so heavy as to detour for this user. Suppressing the provision of detour routes.
- the detour route is not always used, and the degree of the traffic jam that requires information differs for each user.
- an automatic reroute is not necessary, and automatically starting the reroute will hinder driving tasks. Also become.
- a user's information provision model is calculated from the provided traffic jam information and the user's movement history, and the information provision is controlled according to the model, so that it is safe and comfortable. It becomes possible to support traveling.
- FIG. 25 is a flowchart showing the learning process.
- the route receiving unit 106 receives the destination route (step S101).
- the position information detection unit 110 detects the position information (step S102), and refers to the map information stored in the map information storage unit 112 (step S1 03) to convert it into a node (step S104).
- the movement history is stored in the movement history storage unit 111 (step S 105).
- the traffic event information acquisition unit 101 acquires traffic jam information (step S106).
- this traffic event information acquisition step S106 may be performed in parallel without needing to be performed after the series of steps (S10:! To S105) related to the movement history accumulation described above.
- transfer It is determined whether or not there is a traffic jam on the moving route (step S107). If not, the process proceeds to step S115. Then, it is determined whether or not the destination has been reached (step S115). If it has arrived (Yes in step S115), the process ends. If it has not arrived (N in step S115), the process proceeds to step S102. And return to repeat position information detection (step S102).
- the detour route travel determination unit 107 proceeds to a determination of whether or not the vehicle has traveled to avoid traffic jams.
- the detour route search unit 105 searches for a detour route (step S108), and the detour route travel determination unit 107 calculates a final detourable point from the travel route and the detour route (step S109).
- step S110 it is determined whether or not a traffic jam is displayed on the traffic information providing unit 103 screen. If it is displayed (Yes in step S 110), the information displayed on the screen is stored in the information provision state storage unit 104 (step Sl l l). As a result, it can be estimated that the user has recognized the traffic jam. On the other hand, if not displayed (No in step S110), the process proceeds to step S115.
- step S112 it is determined whether or not the position of the user when the traffic jam is displayed is before the final detourable point (step S112). If it is in front of the last detourable point (Yes in step S112), the information recognition history is accumulated as detourable traffic jam (step S113). On the other hand, if it is not before the last detourable point (No in step S112), information is accumulated as a traffic jam that cannot be detoured (step S114).
- step S115 it is determined whether the destination has been reached.
- the vehicle arrives at the destination Yes in step S115
- the provided information state and movement history accumulation in the learning process are terminated.
- the process returns to step S102, and the state of the provided information and the operation of accumulating the movement history are repeated.
- the information recognition history storage unit 113 stores the information recognition history stored by the flow shown in FIG. Specifically, as shown in FIG. 17 and the like, traffic congestion is displayed in front of the final detourable point, and information estimated to be recognized by the user is accumulated.
- the movement history storage unit 111 stores movement histories as shown in FIGS. Using this information, the traffic information provision rule calculation unit 108 uses the information provision model. Is calculated.
- step S201 the route accepted by the route accepting unit 106 is referred to (step S201). Further, the movement history stored in the movement history storage unit 111 is referred to (step S202). It is determined whether or not the user has bypassed by matching these (step S203). When the detour is made (Yes in step S203), the traffic information including the detoured node is referred to (step S204), and information indicating that the detour is made is added to the traffic information (step S205).
- the route “N24” and “N25” are detoured by matching the accepted route with the actual travel history. It is determined that the vehicle has traveled “N28” and “N27” (Yes in step S203). Then, the traffic information including these nodes is referred to (step S204), and a flag (represented by a circle in this embodiment) is set in the “detour history” that is information indicating that the node has been detoured (step S205).
- step S203 if not bypassed (No in step S203), referring to the traffic jam information on the movement history (step S206), and imparts information indicating were diverted Shinano force to congestion information (step S207) 0
- step S203 it is determined that the vehicle has traveled along the accepted route by matching the accepted route with the movement history that is actual travel (step S203). No). Then, the traffic jam report existing on the movement history is referred to (step S206), and a flag (represented by a backslash in the present embodiment) is set in the “detour history” that is information indicating that no detour was made (step S207). Here, the information is accumulated again in the information recognition history accumulation unit 113.
- the information provision model is calculated in the traffic information provision rule calculation unit 108 from the information recognition history thus obtained.
- the information recognition history is referred to (step S208).
- Fig. 21 shows an example of information recognition history.
- the average traffic time is calculated (step S210). As shown in Figure 22 above, the average traffic time “10 minutes” when detouring is calculated.
- the average traffic time is calculated (step S213) by referring to the traffic time in the traffic information when no detour is made (step S212). As shown in Fig. 22 above, the average traffic time “4 minutes” is calculated when there is no detour. [0108] Then, a threshold value is calculated (step S214). For example, as shown in FIG. 22 described above, “7 minutes” that is the middle of these average values is calculated. Then, the information is stored in the traffic information provision rule storage unit 109 as an information provision model (step S215).
- the route receiving unit 106 receives a destination route (step S101a). Then, the position information detection unit 110 detects position information (step S102a).
- the flow proceeds to a flow for accumulating the movement history (from step S103 to step S105, etc.).
- the traffic event information acquisition unit 101 obtains traffic jam information. Obtain (step S302). Then, it is determined whether or not there is a traffic jam on the moving route (step S303). If not, go to step S312. Then, it is determined whether or not it has arrived at the destination (step S312). If it has arrived (Yes in step S312), the process ends. If it does not arrive (No in step S312), the process returns to step S102a to detect position information. Repeat the following steps.
- the information provision model is controlled with reference to the information provision model.
- the detour route search unit 105 searches for a detour route (step S304), and the detour route travel determination unit 107 calculates a final detourable point from the travel route and the detour route (step S305). Then, it is determined whether or not it is before the final detour point (step S306). If it is before the final detourable point (Yes in step S306), the process proceeds to step S307. If it is after the final detourable point (No in step S306), the process proceeds to step S312.
- Step S306 If it is before the last detourable point (Yes in Step S306), the traffic time of the acquired traffic information is referred (Step S307), and the information provision model is referred (Step S308). Then, it is determined whether or not the congestion time is not less than the threshold value of the information provision model (step S309). The detour route is provided only when the threshold value is exceeded (step S310). Then, it is determined whether or not the vehicle has arrived at the destination (step S312). If not (No in step S312), step S102 Return to a and repeat these operations.
- FIG. 28 shows the movement of the user at a certain point.
- the user's route from “home” to “golf course” is indicated by a thick black line.
- a traffic jam with a traffic jam distance of “lkm” and a traffic jam time of “3 minutes” occurs between intersections “Kyo 2” and “Kyo 3” on the route.
- the user's information provision model is the information provision status history, and the threshold “7 minutes” was calculated based on the congestion time at all points. The behavior of whether or not to do so may be different. For example, it is assumed that the user shown in this example has a tendency to circumvent even a slight traffic jam at this point.
- FIG. 29 shows the information recognition history of the user shown in this example.
- each traffic jam information and information about whether or not the user has detoured from the subsequent travel history is accumulated.
- the traffic congestion point “N42 (Kyo 2) Power, La N43 (Kyo 3) For example, in the traffic jam ID “080”, a traffic jam occurs at the traffic jam point “N42 (Kyo 2) Rikira N43 (Kyo 3)” with a traffic jam time of “3 minutes” and the detour history “Maru”, that is, detour Is stored.
- the traffic ID “083” also stores information indicating that a traffic jam with a traffic time of “2 minutes” occurred at the same point and that the traffic was detoured.
- the traffic jam ID “093” or the like information that has passed without being bypassed is stored in the normal case where no traffic jam occurs. In other words, when there is no traffic jam, it passes as it is, but when there is even a little traffic such as a few minutes, it shows a tendency to detour. Therefore, it is also possible to refer to the information recognition history, which is the behavior after providing traffic jam information for each point, and calculate the average time to calculate the information provision model.
- the degree of traffic congestion acquired from the VICS link is the average speed and distance. For example, “lkm traffic jam” is acquired as the same lkm traffic jam at any point. However, even for the same “lkm traffic jam”, the degree of traffic congestion perceived by the user often varies depending on the location. For example, for users who are not familiar with driving, when it is necessary to use a narrow road to bypass the traffic jam or when it is necessary to turn right at an intersection with a high traffic volume, even if there is a slight traffic jam, May not be used. However, the degree to which traffic congestion can be tolerated varies from point to point, even for the same user, such as detouring where it can be easily detoured. Therefore, by calculating the information provision model corresponding to each point as described above, it is possible to control to provide only necessary information when necessary without complicated operations, and it is possible to travel comfortably.
- traffic jams vary greatly depending on the time of day, and user behavior generally varies with time of day. For example, a user who uses a car for commuting on a weekday morning may take a detour action even if a slight traffic jam occurs in order to keep up with the company. However, even if it is the same spot, there is time in the case of a holiday, and even if there is a small amount of traffic, the route can be used as it is. . Therefore, the information provision model may be calculated for each holiday or weekday by referring to the information recognition history and behavior history as shown above for each holiday, weekday, or even time zone such as morning, day, night, etc. . This makes it possible to provide information according to behavioral trends that depend on the user's time.
- the information recognition determination unit 1131 uses information on whether or not the traffic information is displayed on the screen to determine whether or not the traffic information is provided and the user has recognized the traffic. To do. When displayed on the screen, the user has recognized the traffic By referring to the subsequent movement, it is possible to determine whether the vehicle has passed through the vehicle after recognizing the traffic jam or whether it has been detoured to avoid the traffic jam.
- the criteria for determining whether or not a user has recognized a traffic jam is not limited to this. For example, even if it is recognized when scrolling or audio is provided. This will be described below with reference to the drawings.
- FIG. 30 is a diagram for explaining user's traffic jam recognition.
- Fig. 30 shows the same situation as in Fig. 12, but shows the route from "home” to "Hanamachi company". There is also a traffic jam between the intersections “Green 1” and “Hana 1” on the route. The user is now located in front of the intersection “Green 3”. Since the display screen shown in Fig. 12 is a wide area display that displays the wide area of the map, it can be assumed that the traffic congestion point is displayed and that the traffic jam was grasped before the intersection "Green 2", which is the final traffic congestion avoidance point. It was. On the other hand, in FIG. 30, since the screen is a “detailed display” showing the details of the map, the current traffic location cannot be displayed at the current position, and therefore it cannot be estimated that the user has recognized the traffic jam.
- the user shown in this example scrolls the screen while stopping at the intersection “Green 3”, and displays it to confirm the traffic congestion point.
- the user can determine that the traffic jam is recognized by scrolling the screen and displaying the traffic jam display on the screen. Therefore, it is possible to determine whether or not the user has detoured by referring to the history of actions taken by the user later.
- FIG. 31 illustrates the same situation as FIG. 30 and illustrates the user's perception of traffic jam.
- the screen is a detailed display, and if this is the case, it will not be possible to grasp traffic jams before the intersection "Green 2", which is the final detourable point. However, it is notified by voice that there is a traffic jam between the intersections “Green 1” and “Hana 1”. Therefore, it can be estimated that the traffic jam was recognized before passing through the final detourable point. In this way, whether or not a traffic jam has been recognized can be determined using not only the information displayed on the screen, but also the state and information on the operation performed by the user. It is possible to calculate a more flexible information provision model.
- Traffic information is provided by the user's scrolling operation or voice from the device.
- the possibility that the user has recognized the traffic information is higher than when it is displayed on the display screen that simply displays the vicinity of the current position.
- the subsequent action is an action that recognizes the confirmed traffic location.
- FIG. 32 shows an information recognition history.
- the information provision status shown in FIG. 32 is given a confidence value calculated based on the provided status. For example, when it is recognized by being displayed on the screen, the display time is important. Since information displayed on the screen for a long time is considered to be more likely to be recognized by the user, for example, a confidence value corresponding to the display time (seconds) is given. It is assumed that the traffic congestion as confirmed by scrolling has a higher reliability value, for example, “1.0 (MAX)” is given. In the case of voice, the user does not necessarily recognize it, so a different confidence value such as “0.5” will be given depending on the situation.
- the user's cognition is generally different between the case where the traffic congestion arrow blinks in red and the case where the traffic congestion point is simply indicated. .
- the cognitive ability is different even if it is simply indicated by an arrow on the map and if traffic information is provided separately from the map as a simple map.
- the user's degree of recognition differs between the time displayed while the vehicle is stopped, such as waiting for a signal, and the time displayed along with the current position display while driving. There is also.
- the degree of recognition may be calculated in consideration of the manner of providing traffic jam information and the situation.
- the reliability value “0.2” is given.
- the reliability value “1.0” is assigned.
- the traffic jam ID “019” is provided with “speech” and therefore has a confidence value “0.5”. It is the certainty of recognition calculated in this way The information provision model is calculated using the confidence value.
- one of the information provision states is set to the frequency “1”, and the calculation is performed assuming that the user does not recognize the provided information. However, by calculating the average time after further weighting with this confidence value, an information provision model that takes the confidence value into account can be calculated.
- the information provision model may be calculated in consideration of the travel time so far. For example, if you have been driving for a long time, such as when going home or skiing, the driver may be quite tired even if he has been taking a break. In such a case, if traffic jams occur, the tolerance level of traffic jams calculated as an information provision model, that is, the average traffic jam time is lowered, and even if a slight traffic jam occurs, a detour route is provided to make it more comfortable. You may be encouraged to drive. Even if you are a regular user, even if there is a slight amount of traffic jams, if you continue to drive for a long time, you often do not like to be more involved in traffic jams. In such a case, it is possible to drive more safely by providing traffic information and detour routes.
- a technique for predicting a user's destination based on a movement history is well known. Therefore, in the present invention, it is also possible to predict the destination from the movement history using such a well-known method, and to input the predicted destination to the route receiving unit 106.
- the degree to which a traffic jam can be tolerated varies depending on the user, and it is also important that an appropriate amount of information is provided according to the user.
- the method of calculating the information provision model and controlling the provision of traffic information such as a detour route according to the information provision model automatically predicts the destination and automatically transmits the information. This is a very effective method even for car navigation systems such as those offered in Japan.
- the movement history accumulation in this embodiment is converted into a node series by referring to map information in consideration of the ease of route matching, but is detected by the position information detection unit 110 such as GPS, for example. Since it is possible to store the latitude and longitude information as a history, it is not necessarily a necessary component. Therefore, the invention described in this embodiment can be realized by the components shown in FIG.
- the minimum configuration for carrying out the present invention is a device that provides traffic information related to traffic, and includes a traffic event information acquisition unit 101 that acquires traffic event information related to traffic events, and the traffic information.
- a traffic information providing unit 103 to be provided an information provision state accumulating unit 104 for accumulating the traffic information provided to the traffic information providing unit 103 as provided information, a location information detecting unit 110 for detecting user location information,
- a movement history storage unit 111 that stores the detected position information series as a movement history
- a route reception unit 106 that receives the user's movement route
- an information recognition history that is stored in the information recognition history storage unit 113.
- a detour route travel determination unit 107 that determines a detour travel for the accepted route based on the travel history accumulated in the travel history accumulation unit 111 and a detour route travel determination unit 107.
- the traffic information provision rule calculation unit 108 that calculates the rules for providing the traffic information based on the detour travel, and the traffic information provision unit 103 provides the traffic information based on the traffic information rules. It comprises a traffic information provision control unit 102 to be controlled.
- the user's recognition of traffic congestion is determined based on whether or not it is displayed on the display screen.
- a recognition determination unit for separately determining recognition is provided to accumulate information.
- other configuration examples decided to be used for calculating the information provision model can be considered. Therefore, the invention in this case can be realized by the components shown in FIG.
- the traffic information providing apparatus shown in FIG. 33 corresponds to the provided information stored in the provided information state storage unit 104.
- An information recognition determination unit 1131 for determining the user's cognition and an information recognition history storage unit 113 for storing the cognition determined by the information recognition determination unit 1131 are added.
- the present invention is provided as a device for providing information related to traffic, for example, in a car navigation device or a portable terminal, calculates a rule for providing information based on the provided traffic event information, and responds to the rule.
- a device for providing information for example, in a car navigation device or a portable terminal, calculates a rule for providing information based on the provided traffic event information, and responds to the rule.
- By providing information it can be used as an information providing device that provides users with necessary information.
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
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US11/910,854 US8065072B2 (en) | 2006-05-16 | 2007-03-22 | Transit information provision device, method and program |
JP2007537055A JP4050309B2 (ja) | 2006-05-16 | 2007-03-22 | 交通情報提供装置、方法、及びプログラム |
CN2007800006699A CN101331383B (zh) | 2006-05-16 | 2007-03-22 | 交通信息提供装置、方法 |
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JP2006136956 | 2006-05-16 | ||
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WO2007132593A1 true WO2007132593A1 (ja) | 2007-11-22 |
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US (1) | US8065072B2 (ja) |
JP (1) | JP4050309B2 (ja) |
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WO (1) | WO2007132593A1 (ja) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
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CN111405480A (zh) * | 2019-01-02 | 2020-07-10 | 中国移动通信有限公司研究院 | 一种路况信息推送方法、网络设备、车载终端及系统 |
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JP2020112480A (ja) * | 2019-01-15 | 2020-07-27 | 株式会社ゼンリンデータコム | ナビゲーション装置、ナビゲーション方法、ナビゲーションプログラム及びルート探索用データ |
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US20090281721A1 (en) | 2009-11-12 |
JPWO2007132593A1 (ja) | 2009-09-24 |
JP4050309B2 (ja) | 2008-02-20 |
CN101331383A (zh) | 2008-12-24 |
CN101331383B (zh) | 2011-11-16 |
US8065072B2 (en) | 2011-11-22 |
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