JP2010204001A - Navigation apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To help a user to reach a destination by avoiding passage restrictions more reliably. <P>SOLUTION: When it is determined that a vehicle is subjected to passage restrictions when running on a guidance route R1, based on a current location of the vehicle and information on the passage restrictions, the delay of the vehicle is considered, based on traffic information for identifying a traffic situation around the vehicle and statistical data obtained by collecting travel time for each road area of the vehicle, the vehicle leaves a restricted area until the passage restrictions are started, a guidance route R2 reaching a destination through a road other than the restricted area is searched, and running guidance is performed following the guidance route. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a navigation device that searches for a guidance route from a departure point to a destination and performs travel guidance according to the guidance route.

  2. Description of the Related Art Conventionally, a storage device for storing map data including link data including time restriction information of each link constituting a road on a map and time zone information for determining a time zone to which each link belongs is provided. Based on the information and the time zone information, there is one that searches for a recommended route between a departure point and a destination by excluding a link that is time-restricted at the estimated arrival time of the link (for example, a patent) Reference 1).

JP 2005-121425 A

  However, the device described in Patent Document 1 excludes links that are time-restricted at the estimated arrival time of each link, and is expected to be able to pass immediately before time restriction starts. Is not excluded. For this reason, if there is even a slight delay in the vehicle, there is a possibility that it will be caught in time regulation and will not be able to arrive at the destination as scheduled.

  The present invention has been made in view of the above points, and an object thereof is to more reliably avoid traffic restrictions and reach a destination.

  In order to achieve the above object, the invention described in claim 1 includes a current position specifying unit that specifies a current position of a vehicle, a traffic information receiving unit that receives traffic information for specifying a traffic situation around the vehicle, Storage means for storing statistical data collecting travel time for each road section of the vehicle, traffic regulation information obtaining means for obtaining traffic regulation information including the timing of traffic regulation and the restricted area, and roads referring to the road data A route search means that calculates an evaluation value for each section and searches for a guide route that minimizes the total evaluation value from the departure point to the destination, and the vehicle travels on the guide route based on the current position of the vehicle and traffic regulation information Traffic information and statistical data when it is determined by the determination means that the traffic is restricted when the vehicle travels on the guide route. Based on the delay of the vehicle based on the above, by the time the traffic regulation starts, the vehicle exits out of the restricted area, searches for a guidance route to the destination through the road outside the restricted area, And a first travel guide means for performing travel guidance according to the guide route.

  According to such a configuration, when it is determined that the vehicle is subject to traffic restrictions when traveling on the guide route, the traffic information for identifying the traffic situation around the vehicle and the travel time for each road section of the vehicle are determined. By taking into account the delay of vehicles based on the collected statistical data, the vehicle will leave the restricted area by the time when the traffic regulation starts, and will pass through the road outside the restricted area to the destination Since the route is searched and the travel guidance is performed according to the guidance route, it is possible to more reliably avoid the traffic restriction and reach the destination.

  Further, the invention according to claim 2 is a case where it is determined that the guidance route to the destination through the road outside the restricted area is searched before reaching the destination before the traffic restriction is started. The second travel guide means for searching for a guide route to reach a parking lot suitable for changing to a public transport means that can reach the destination before the traffic regulation is started, and for performing a travel guide according to the guide route. It is characterized by having prepared.

  According to such a configuration, if it is determined that a guidance route to the destination through the road outside the restricted area is not searched before starting the restricted traffic, Before the start of the route, a guide route to reach a parking lot suitable for changing to a public transportation means that can reach the destination is searched, and travel guidance is provided according to the guide route, so that traffic regulations are not violated. It is possible to reach the destination.

  Further, in the invention according to claim 3, when it is determined that the vehicle is subject to traffic regulation before reaching the destination, the remaining time until the traffic regulation is started based on the traffic regulation information, Since at least one of the time and the restricted area is notified to the occupant, the occupant can easily recognize each piece of information related to traffic regulation.

  In the invention according to claim 4, when it is determined that the vehicle is located at a point subject to traffic restriction based on the current position of the vehicle and the traffic regulation information, the vehicle is located within the traffic regulation area. Since at least one of the remaining time until the restriction is canceled, the time of traffic regulation, and the restricted area is notified to the occupant, the occupant can easily recognize each information related to the traffic regulation.

It is a figure which shows the structure of the navigation apparatus which concerns on one Embodiment of this invention. It is a flowchart which shows the process of a data processing part. It is a flowchart which shows the process of a data processing part. It is a figure for demonstrating the path | route when a vehicle is located in the present location shown in a traffic regulation area, and the destination exists out of a traffic regulation area. It is a figure for demonstrating the path | route when a vehicle is located in the present location shown in a traffic control area, and the destination exists in a traffic control area.

  FIG. 1 shows a configuration of a navigation device according to an embodiment of the present invention. The navigation device 1 includes a GPS receiver 10, a traffic information receiver 11, a traffic information receiving communication device 12, a vehicle speed sensor 13, an angular velocity sensor 14, a map data input device 15, a display device 16, an operation unit 17, a speaker 18, A storage device 19 and a data processing unit 20 are provided.

  The GPS receiver 10 receives radio waves transmitted from GPS satellites and sends information for specifying the current position to the data processing unit 20.

  The traffic information receiver 11 is a device for receiving road traffic information (VICS information) transmitted from the information center using beacons and FM multiplex broadcasting.

  The traffic information receiving communication device 12 is a device for communication connection with an information center that provides contents such as traffic information, news, weather, and sightseeing information.

  In this embodiment, it is also possible to receive traffic regulation information described later via the traffic information receiver 11 and the traffic information receiving communication device 12.

  The vehicle speed sensor 13 outputs a vehicle speed signal corresponding to the vehicle speed, and the angular speed sensor 14 detects an angular speed generated when the vehicle turns.

  In the present embodiment, the GPS receiver 10, the vehicle speed sensor 13, and the angular velocity sensor 14 function as a position detector for specifying the current position of the vehicle.

  The map data input device 15 is a device for reading out map data of a specific area from a storage medium storing map data and inputting it to the data processing unit 20. Examples of the storage medium include a CD, a DVD, and a hard disk drive.

  Map data includes the distance of each link, road type, number of lanes, traffic signal position, road data indicating traffic restrictions, so-called map matching data to improve position detection accuracy, rivers, lakes, sea, railways, facilities Etc., background data representing the position, shape, name, etc., facility data indicating the name, location, facility type, etc. of each facility.

  The display device 16 has a display such as a liquid crystal, and displays an image corresponding to the image signal input from the data processing unit 20 on the display.

  The operation unit 17 includes a mechanical switch disposed around the display of the display device 16, a touch switch provided on the front surface of the display of the display device 16, and the like, and processes a signal corresponding to a user's switch operation. To the unit 20.

  The speaker 18 is built in the display device 16 and outputs a sound corresponding to the sound signal input from the data processing unit 20.

  The storage device 19 is a device for writing data to and reading data from a storage medium such as a hard disk drive, a flash memory drive, or a memory card. The storage device 19 stores traffic regulation information and statistical data of travel time for each link of a vehicle that has traveled through each link.

  The traffic regulation information is information indicating a road or a zone where time regulation is performed by a vehicle type, a license plate number, or the like. The traffic regulation information includes information in which traffic conditions (vehicle type and license plate number), traffic regulation time (day of the week, time zone, etc.), and regulation target area are associated with each other. The restricted area is defined as, for example, an area inside a specific ring road or between both ends of the specific road. The traffic regulation information can be periodically updated using the latest traffic regulation information received via the traffic information receiver 11 and the traffic information receiving communication device 12. The statistical data includes the shortest time, the average time, and the longest time of the travel time of each link.

  The data processing unit 20 is configured as a computer including a CPU, a ROM, a RAM, a memory, an I / O, and the like. The CPU performs various processes according to programs stored in the memory. The data processing unit 20 has a timer mechanism for managing the year, month, day, day of the week, and current time.

  As processing of the data processing unit 20, when traffic information for specifying traffic conditions around the vehicle is received via the traffic information receiver 11 and the traffic information receiving communication device 12, the received traffic information is stored in the RAM. Traffic information storage process, current position specifying process for specifying the current position of the vehicle based on the information for specifying the current position of the vehicle input from the position detector, and the own vehicle position mark on the map around the own vehicle position Overlaid map display processing, destination search processing for searching for destinations according to user operations, calculation of route cost for each section by referring to road data, and total route cost from departure to destination is minimum There are a route search process for searching for a guide route, a travel guide process according to the guide route, and the like. In the route search process, it is possible to search for a guide route suitable for any of the priority conditions such as high-speed priority, general road priority, distance priority, time priority, etc., according to a user operation. .

  2 and 3 show flowcharts of the data processing unit 20. The navigation device 1 is in an operating state when the ignition switch of the vehicle is turned on, and the data processing unit 20 starts the processes shown in FIGS.

  First, the traffic restriction target condition, the current position, and the current time are specified (S100). Specifically, the current position and current time of the vehicle are specified, and the traffic restriction target condition (restricted vehicle condition, restricted area, restriction) at the current position of the vehicle with reference to the traffic restriction information stored in the storage device 19. Time).

  Next, it is determined whether or not the vehicle is located in a traffic regulation area (regulation target area) (S102). Specifically, it is determined whether or not the vehicle is located in the restricted area based on whether or not the current position of the vehicle is included in the restricted area.

  Here, when the current position of the vehicle is not located within the restricted area, the determination in S102 is NO, waits for a predetermined time T1 (for example, 5 minutes) (S104), and returns to S100.

  If the current position of the vehicle is located within the restricted area, the determination in S102 is YES, and it is determined whether or not the vehicle engine is off (S106). A signal indicating whether or not the vehicle engine is off is input to the data processing unit 20 from an engine ECU (not shown), and whether or not the vehicle engine is off based on this signal. Determine whether.

  If the vehicle engine is off, the determination in S106 is YES and the process is terminated. If the engine of the vehicle is on, the determination in S106 is NO, and then it is determined whether or not the vehicle is a restricted vehicle at the current time (S108).

  Here, if the vehicle is not a restricted vehicle at the current time, the determination in S108 is YES, and then the remaining time until the start of the traffic restriction and the display of the restricted area are started (S110). For example, the display device 16 displays a message such as “This vehicle will be restricted from passing through the ring line 5 after 18:00 on the 22nd” and the speaker 18 outputs a voice.

  Next, it is determined whether or not a destination input has been performed (S112). When an operation for specifying the destination is performed by the user, the determination in S112 is YES, and a route search for a guide route from the departure point to the destination is performed (S114). Specifically, the route cost for each section is calculated by referring to the road data, and a guide route that minimizes the total route cost from the departure place (current position) to the destination is searched. In addition, traffic conditions such as traffic jams on route guidance are specified based on traffic information received by the traffic information receiver 11 and the traffic information receiving communication device 12, and guidance is provided in consideration of delays due to traffic jams on the route guidance. Search for a route. The route cost (evaluation value) calculation method differs depending on each priority condition such as high-speed priority, general road priority, distance priority, time priority, and the like.

  Next, it is determined whether or not there is a route (guide route) that can reach the destination before the start of regulation (S116). When the route search in S114 finds a guidance route that can reach the destination before the start of regulation, the determination in S116 is YES, and the route guidance starts with the route that can reach the destination by the traffic regulation start time ( S118).

  Next, it is determined whether or not the destination can be reached by the traffic regulation start time (S120). Specifically, traffic conditions such as traffic jams on route guidance are identified based on traffic information received by the traffic information receiver 11 and the traffic information receiving communication device 12, and delays due to traffic jams on the route guidance are considered. Then, it is determined whether or not the destination can be reached by the traffic regulation start time.

  Here, if it is determined that the destination can be reached before the traffic regulation start time, the determination in S120 is YES, waits for a predetermined time T2 (for example, 30 minutes) (S122), and whether or not the destination has been reached. Is determined (S124).

  If the destination has not been reached, the determination in S124 is NO and the determination in S120 is repeated.

  If it is determined that the destination cannot be reached by the traffic regulation start time due to traffic congestion or the like, the determination in S120 is NO, and then it is determined whether or not the destination is outside the current regulation area (regulation target area). (S126).

  If the destination is outside the restricted area, the determination in S126 is YES, and then it is determined whether or not there is a route that can be taken out of the restricted area in consideration of traffic conditions (S128). Specifically, taking into account vehicle delays based on traffic information and statistical data, the vehicle exits the restricted area by the time when traffic regulation begins and travels on roads outside the restricted area. To determine whether there is a guide route to the destination. In the present embodiment, the delay of the vehicle is considered according to the traffic situation around the vehicle specified based on the traffic information, and the vehicle is moved out of the restricted area using the worst value of the travel time of each link included in the statistical data. The vehicle delay is taken into account by calculating the time to exit.

  Here, when a route that can be taken out of the restricted area is searched in consideration of traffic conditions, the determination in S128 is YES, and route guidance is performed according to the guidance route until the vehicle leaves the restricted area (S130). Subsequently, route guidance is carried out according to the guide route that leads to the destination through the road outside the restricted area (S132).

  Next, it is determined whether or not the vehicle has arrived at the destination based on whether or not the current position of the vehicle has moved to a certain distance before the destination (S134).

  If the vehicle has not reached a certain distance before the destination, the determination in S134 is NO and the process returns to S132. When the vehicle reaches a certain distance before the destination, the determination in S132 is YES, and this process ends.

  If the vehicle is a restricted vehicle at the current time, the determination in S108 is YES, and the process proceeds to S136 in FIG. 3 to display a travel impossible guidance, a restriction release date and time, and the like (S136). For example, the display device 16 displays a message such as “This vehicle is not allowed to pass due to current traffic restrictions. The date and time when the traffic restriction is canceled is 18:00 on the 22nd.

  Next, it is determined whether or not the vehicle is stopped (S138). In the present embodiment, it is determined whether or not the vehicle is stopped based on whether or not a state in which no vehicle speed signal is input from the vehicle speed sensor 13 has continued for a certain time T3 (for example, 2 seconds).

  Here, if the vehicle is not stopped, the determination in S138 is NO, and a warning is given to prohibit running (S140). Specifically, a message for warning of prohibition of travel is displayed on the display device 16 and the sound is output from the speaker 18.

  And it waits for fixed time T4 (for example, 3 minutes) (S142), and returns to S138.

  If the vehicle stops and the determination in S138 is YES, it is next determined whether or not the engine of the vehicle is in an off state (S144).

  If the vehicle engine is on, the determination in S144 is NO and the process proceeds to S142. If the engine of the vehicle is turned off, the determination in S144 is YES and the process is terminated.

  Returning to the description of FIG. 2, if the user does not perform an operation for specifying the destination and the determination in S112 is NO, the process proceeds to S146 in FIG. 3, and the remaining time until the start of regulation is a fixed time T2 (for example, , 30 minutes) or not (S146).

  If the remaining time until the start of regulation is longer than the predetermined time T2, the determination in S146 is NO and the determination in S146 is repeated.

  If the remaining time until the start of regulation is within the predetermined time T2, the determination in S146 is YES, and then it is determined whether or not the current position is within the regulation area (regulation target area) (S148).

  Here, when the current position of the vehicle is within the restricted area (the restricted area), the determination in S148 is YES, and the restriction time start time is announced (S150). Specifically, a message indicating the restriction time start time is displayed on the display device 16 and the sound is output from the speaker 18.

  Next, a parking lot that can be reached before the start of regulation is guided (S152). Specifically, it is possible to reach before the traffic regulation is started, search for a parking lot suitable for transfer to public transportation, and search for a guide route to reach one of the searched parking lots. Then, traveling guidance is performed according to the guidance route. Public transportation means include railroads, buses, taxis, and ships.

  Next, it is determined whether or not the parking lot has been reached before the regulation time (S154). If it has not arrived at the parking lot before the regulation time, the determination in S154 is NO and the process proceeds to S138. Moreover, when it arrives at the parking lot before the regulation time, the determination in S154 is YES, and this process is terminated.

  If the current position of the vehicle is outside the restricted area (the restricted area), the determination in S148 is NO and the process proceeds to S132 in FIG.

  Returning to the description of FIG. 2, if the destination is within the restricted area, the determination in S126 is NO and the process proceeds to S150. Therefore, after the regulation time start time is announced, it is guided to a parking lot that can arrive before the regulation starts.

  In addition, even if the destination is outside the restricted area and it is determined YES in S126, if there is no route that goes out of the restricted area taking into account the traffic conditions, the determination in S128 is NO and S150. Proceed to Also in this case, after the regulation time start time is announced, it is guided to a parking lot that can arrive before the regulation starts.

  FIG. 4 shows a route when the vehicle is located at the current location shown in the traffic restriction area (restricted area) and the destination is outside the traffic restricted area (restricted area).

  The route R1 is a route that arrives at the destination through the points A and B from the current location. This route R1 is a route searched in consideration of delays due to traffic jams based on traffic information in S114 after the destination is input.

  The route R2 is a route that passes the point A from the current location, then exits from the point B to the outside of the restricted area, passes through the road outside the restricted area, and reaches the destination. This route R2 is used when traffic congestion or the like occurs at a point after the point B before the vehicle reaches the point B, and it is determined in S120 that the destination cannot be reached by the start of traffic regulation. Considering vehicle delays based on information and statistical data, make sure that the vehicle exits the restricted area by the time the traffic regulation begins and passes along the road outside the restricted area to the destination. The route searched for.

  The route R3 is a route that can be reached after passing the point A from the current location and before the traffic restriction is started, and arrives at a parking lot suitable for transfer to public transportation. In this route R3, before the vehicle arrives at the point A, traffic congestion or the like occurs at a point after the point A. In S126, it is determined that the destination is outside the restricted traffic area, and the traffic condition is taken into consideration. Then, if it is determined that there is no route to be outside the restricted area by the restricted time, the route is searched in S152.

  FIG. 5 shows a route when the vehicle is located at the current location indicated in the traffic restriction area (restricted area) and the destination exists in the traffic restricted area (restricted area).

  The route R4 is a route that can be reached after passing the point C from the current location and before the traffic restriction is started, and arrives at a parking lot suitable for transfer to public transportation. In this route R4, it is determined that a traffic jam or the like occurs at a point after the point C before the vehicle reaches the point C, and there is no route that can reach the destination by the start of traffic regulation in S116. In this case, the route searched in S152.

  As shown in FIGS. 4 and 5, the guide route is updated flexibly according to the traffic situation based on the traffic information.

  According to the above configuration, when it is determined that the vehicle is subject to traffic restrictions when traveling on the guide route, the vehicle delay is reduced based on the traffic data and the statistical data collected for the travel time for each road section of the vehicle. Considering this, the vehicle exits outside the restricted area by the time when traffic regulation is started, and a guidance route to the destination through the road outside the restricted region is searched, and driving guidance is followed according to the guidance route. Therefore, it is possible to more reliably avoid traffic restrictions and reach the destination.

  In addition, if it is determined that the guidance route to the destination through the road outside the restricted area will not be searched before leaving the restricted area before the traffic restriction is started, before the restricted traffic is started A guide route to reach a parking lot suitable for changing to a public transportation means that can reach the destination is searched, and travel guidance is performed according to the guide route, so that the destination can be reached without violating traffic regulations. Is possible.

  In addition, when it is determined that the vehicle is subject to traffic regulation before reaching the destination, at least one of the remaining time until traffic regulation is started based on the traffic regulation information, the timing of traffic regulation, and the restricted area is Since the information is notified to the occupant, the occupant can easily recognize each piece of information regarding the traffic regulation.

  In addition, if it is determined that the vehicle is located at a location subject to traffic regulation based on the current location of the vehicle and traffic regulation information, the vehicle is located in the traffic regulation area and the remaining time until the traffic regulation is released Since at least one of the time of traffic regulation and the restricted area is notified to the occupant, the occupant can easily recognize each information on the traffic regulation.

  In addition, this invention is not limited to the said embodiment, Based on the meaning of this invention, it can implement with a various form.

  For example, in the above embodiment, the remaining time until the start of traffic regulation and the restricted area are displayed in S110, but at least one of the remaining time until the start of traffic regulation, the time of restricted traffic, and the restricted area is notified to the occupant. You may make it do.

  In the above embodiment, the travel impossibility guidance and the restriction release date / time are displayed in S136. For example, the vehicle is located in the traffic restriction area, the remaining time until the traffic restriction is released, the time of the traffic restriction. The passenger may be notified of at least one of the restricted areas.

  The correspondence between the configuration of the above embodiment and the configuration of the claims will be described. The current position specifying process corresponds to the current position specifying means, and the traffic information receiver 11 and the traffic information receiving communication device 12 are connected to the traffic. It corresponds to information receiving means, the storage device 19 corresponds to storage means, S100 corresponds to traffic restriction information acquisition means, route search processing corresponds to route search means, S120 and S124 correspond to determination means, and S128. , S130 and S132 correspond to the first travel guide means, S116 and S152 correspond to the second travel guide means, S102, S108 and S110 correspond to the traffic regulation start notification means, and S102, S108 and S136 correspond to the traffic regulation. It corresponds to a release notification means.

  1 is a diagram showing a configuration of a navigation device according to an embodiment of the present invention.

DESCRIPTION OF SYMBOLS 10 GPS receiver 11 Traffic information receiver 12 Communication apparatus for traffic information reception 13 Vehicle speed sensor 14 Angular velocity sensor 15 Map data input device 16 Display device 17 Operation part 18 Speaker 19 Storage device 20 Data processing part

Claims (4)

Current position specifying means for specifying the current position of the vehicle;
Traffic information receiving means for receiving traffic information for identifying traffic conditions around the vehicle;
Storage means for storing statistical data collecting travel time for each road section of the vehicle;
A traffic control information acquisition means for acquiring traffic control information including the time of traffic control and the restricted area;
Route search means for calculating an evaluation value for each road section with reference to road data and searching for a guide route that minimizes the total evaluation value from the departure point to the destination;
Determining means for repeatedly determining whether or not the vehicle is subject to traffic regulation when the vehicle travels on the guide route based on the current position of the vehicle and the traffic regulation information;
When it is determined by the determination means that the vehicle is subject to traffic regulation when traveling on the guide route, the traffic regulation is started in consideration of the delay of the vehicle based on the traffic information and the statistical data. The first traveling in which the vehicle exits out of the restricted area by a predetermined time, searches for a guidance route to reach the destination through a road outside the restricted region, and performs traveling guidance according to the guidance route And a navigation device.   If it is determined that a guidance route to the destination after exiting the restricted area and passing through the road outside the restricted area is not searched before the traffic restriction is started, the traffic restriction is started. The vehicle has second travel guidance means for searching for the guide route to reach a parking lot suitable for transfer to a public transport means that can reach the destination, and for performing travel guidance according to the guide route. The route search device according to claim 1, characterized in that:   When it is determined by the determination means that the vehicle is subject to traffic regulation before reaching the destination, the remaining time until the traffic regulation is started based on the traffic regulation information, the timing of the traffic regulation, The route search device according to claim 1, further comprising a traffic restriction start notifying unit that notifies a passenger of at least one of the restriction target areas.   When it is determined that the vehicle is located at a location subject to the traffic restriction based on the current position of the vehicle and the traffic restriction information, the vehicle is located within the traffic restriction area, and the traffic restriction is released. 4. The vehicle according to claim 1, further comprising a traffic restriction release notifying unit that notifies a passenger of at least one of the remaining time until the vehicle is closed, the time of the traffic restriction, and the restricted area. Route search device.

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