JP6852022B2 - Map information creation device, map information creation method, map information creation program and recording medium - Google Patents

Description

The present invention relates to a map information creating device capable of predicting the approach of another vehicle in the traveling direction of the vehicle, a map information creating method, a map information creating program, and a recording medium on which the program is recorded.

Conventionally, a technique for creating a map used for a navigation system for navigating a vehicle has been formulated, and a technique for identifying a dangerous place for a driver on the map has also been formulated. As one of the methods, there are techniques described in Patent Document 1 and Patent Document 2. Patent Document 1 discloses a traffic information providing system that identifies a point where a traffic regulation violation, a lane change, or the like has occurred as a dangerous point based on a traveling locus. Further, Patent Document 2 provides information that aggregates and discriminates the movement locus when sudden braking or sudden steering is detected, depending on the direction of travel, when special attention is required and when normal degree is sufficient. The device is disclosed.

Japanese Unexamined Patent Publication No. 2014-137682 Japanese Unexamined Patent Publication No. 2012-243165

By the way, there is a problem that the techniques described in Patent Document 1 and Patent Document 2 are still insufficient for predicting dangerous points.

Therefore, an object of the present invention is to provide a map information creation device, a map information creation method, and a map information creation program capable of predicting a danger point different from the conventional one in order to solve the above-mentioned problems. To do.

In order to solve the above problems, the map information creating device according to one aspect of the present invention has a storage unit for storing map information and an area where lane change is not regulated, and is located in the traveling direction of the first vehicle. On the other hand, based on a specific unit that identifies an area where it is difficult to predict the protrusion of another vehicle, a receiving unit that receives vehicle travel information indicating the route the vehicle has traveled, and vehicle travel information having a route that has passed the region. , A detection unit that detects whether or not there is another vehicle that protrudes in the traveling direction of the first vehicle in the area, and alerts the user to the area according to the result detected by the detection unit. It is equipped with a registration unit that registers in map information as a warning area to be called.

In order to solve the above problem, the map information creating method according to one aspect of the present invention is the first, in which the map information creating device including the storage unit for storing the map information is in an area where the lane change is not regulated. It has a specific step for identifying an area where it is difficult to predict the protrusion of another vehicle with respect to the traveling direction of the vehicle, a receiving step for receiving vehicle traveling information indicating the route on which the vehicle has traveled, and a route passing through the area. Based on the vehicle travel information, a detection step for detecting whether or not there is another vehicle protruding from the traveling direction of the first vehicle in the area, and a user according to the result detected by the detection step. The registration step of registering in the map information as the alert area for alerting the user is executed.

In order to solve the above problems, the map information creation program according to one aspect of the present invention has a storage function for storing map information in a computer and an area in which lane change is not regulated, and is a first vehicle. A specific function for identifying an area where it is difficult to predict the protrusion of another vehicle with respect to the traveling direction, a receiving function for receiving vehicle travel information indicating the route on which the vehicle has traveled, and vehicle travel information having a route that has passed through the region. Based on the detection function that detects whether or not there is another vehicle that protrudes in the traveling direction of the first vehicle in the area, and the area according to the result detected by the detection function, the area is displayed to the user. Realize a registration function that registers in map information as a warning area that should be called.

In the map information creating device, the specific part is an intersection in the map information, and a first-class vehicle boundary line of a yellow solid line is drawn between the lanes of the road consisting of a plurality of lanes entering the intersection. It is an area, and the detection unit detects whether or not there is a vehicle whose vehicle travel information indicates that the vehicle has traveled across the first-class vehicle boundary line, and the detection unit has traveled across the first-class vehicle boundary line. When there is a vehicle indicating that, the registration unit may register the area in the map information as a warning area.

In the map information creating device, the specific part is an intersection in the map information, and a type 2 vehicle boundary line of a solid yellow line and a white broken line is formed between the lanes of a road consisting of a plurality of lanes entering the intersection. It is a drawn area, and the detection unit detects whether or not there is a vehicle indicating that the vehicle traveling information has changed lanes across the type 2 vehicle boundary line, and the detection unit detects whether or not there is a vehicle that has changed lanes. When there is a vehicle indicating that the lane has been changed across the road, the registration unit may register the area in the map information as a warning area.

In the above map information creating device, the specific part is based on the map information that the number of lanes on the side entering the intersection is greater than the number of lanes on the side entering the intersection and exiting the intersection. A lot of places are specified as an area, and the detection unit indicates that the vehicle traveling in the lane in which the direction of travel is determined in the lane on the side entering the intersection has traveled in a direction different from the direction of travel. It may be to detect the presence or absence.

In the map information creating device, the specific unit may specify, in the map information, a place where a bus stop is located within a predetermined distance from the intersection in the lane on the side entering the intersection as an area. ..

In the map information creating device, the specific unit indicates, in the map information, a place where a vehicle enters the lane on the side entering the intersection within a predetermined distance from the intersection and a vehicle enters the lane from outside the road. It may be specified as an area.

In the map information creating device, the detection unit may detect whether or not there is a protrusion from another lane for each lane, and the registration unit may register the caution area for each lane.

In the above map information creation device, when a vehicle approaches an area registered as a warning area, information indicating that the vehicle may protrude from another lane or change lanes may be output. , A setting unit for setting map information may be further provided.

In the above map information creation device, the setting unit further presents that when the vehicle is traveling in a lane in which a warning area is set, the lane is changed to a lane in which another warning area is not set. The presentation information to be displayed may be set.

In the map information creating device, the detection unit detects whether or not there are a predetermined number or more of vehicles protruding from the vehicle boundary line in the region within a predetermined period based on the vehicle traveling information having a route passing through the region. When there are a predetermined number or more of vehicles protruding from the vehicle boundary line in the area, the registration unit may register the area as a warning area.

In the map information creating device, the detection unit detects whether or not there are a predetermined ratio or more of vehicles protruding from the vehicle boundary line in the region based on the vehicle traveling information having a route passing through the region. When the number of vehicles protruding from the vehicle boundary line in the area is equal to or more than a predetermined ratio, the registration unit may register the area as a warning area.

The map information creating device according to one aspect of the present invention can specify an area where it is difficult to predict that another vehicle will enter with respect to the traveling direction of the vehicle.

It is a block diagram which shows the functional structure example of the map information creation apparatus. It is a flowchart which shows the method of creating the map information by the map information creating apparatus. It is a block diagram which shows the functional configuration example of a navigation system. It is a flowchart which shows one operation example of navigation by a navigation system. It is an example of a map and is a figure for demonstrating an example of an intersection. It is an example of a map and is a figure for demonstrating an example of a lane change. It is an example of a map and is the figure which shows the setting example of the attention area. It is a block diagram which shows the other configuration example of the map information creation apparatus.

Hereinafter, the map information creating device according to one embodiment of the present invention will be described in detail with reference to the drawings.

<Embodiment>
<Configuration of map information creation device>
The map information creating device according to one aspect of the present invention has a storage unit for storing map information (see 104 in FIG. 1) and an area where lane change is not regulated with respect to the traveling direction of the first vehicle. A specific unit (see 105 in FIG. 1) that identifies an area where it is difficult to predict the protrusion of another vehicle, and a receiving unit (see 102 in FIG. 1) that receives vehicle travel information indicating the route on which the vehicle has traveled. A detection unit (see 105 in FIG. 1) that detects whether or not there is another vehicle that protrudes in the traveling direction of the first vehicle in the region based on vehicle traveling information having a route that has passed through the region. A registration unit (see 105 in FIG. 1) is provided for registering an area in map information as a caution area for calling attention to the user according to the result detected by the detection unit.

FIG. 1 is a block diagram showing a functional configuration example of the map information creating device 100. As shown in FIG. 1, the map information creating device 100 includes a reception unit 101, a reception unit 102, an output unit 103, a storage unit 104, and a CPU 105. The map information creating device 100 is, for example, a device that is mounted on a vehicle or the like to create a map for a navigation device for providing route guidance, and is realized by a server device, a PC, or the like, but is not limited thereto. However, it may be realized by a mobile terminal such as a smartphone. Although the lane change itself is not regulated by law, the map information creating device 100 is a device that identifies a warning area where it is difficult to predict a lane change by another vehicle or a protrusion for overtaking another vehicle. The map information creating device 100 identifies the attention area by using the feature of the map and the traveling history information (so-called probe information) indicating the traveling history of the user traveling by using the vehicle. Hereinafter, each functional unit will be described in detail.

The reception unit 101 has a function of receiving input from the user of the map information creating device 100 and transmitting the input to the CPU 105. The reception unit 101 receives, for example, an input instructing to specify an area in which lane change is not regulated and in which it is difficult to predict the protrusion of another vehicle with respect to the traveling direction of the first vehicle. .. The reception unit 101 can be realized by, for example, a hardware key provided in the map information creating device 100, a soft key such as a touch key, or the like. The reception unit 101 transmits information indicating the received destination to the CPU 105. The input to the reception unit 101 may be a voice input.

The receiving unit 102 has a function of receiving information from another device by communication. The receiving unit 102 receives, for example, travel history information, so-called probe information (probe traffic information), which is the travel history of the vehicle generated by using information such as the position and speed at which the vehicle actually traveled. The receiving unit 102 receives, for example, probe information from a vehicle information and communication system (server) or the like that collects and stores probe information. The receiving unit 102 transmits the acquired probe information to the CPU 105.

The output unit 103 has a function of outputting the instructed data according to the instruction from the CPU 105. The output unit 103, for example, outputs (transmits) map information 141 in which information related to the alert area is set to a navigation system or the like mounted on the vehicle, or indicates a location where the alert area is set. As information, for example, a map can be output to a monitor. The output unit 103 functions as a communication interface that outputs information specified by the CPU 105 to an external device.

The storage unit 104 is a recording medium that stores various data including various programs and map information required for the map information creation device 100 to operate. The storage unit 104 is realized by, for example, an HDD (Hard Disc Drive), an SSD (Solid State Drive), or the like. The storage unit 104 stores map information 141, and the map information 141 includes links indicating each road and information on nodes that are contact points between roads, and the number of lanes on the road. It contains information such as the location of the bus stop and the location of vehicles entering the road from parking lots and buildings.

The CPU 105 is a processor that executes processing to be executed by the map information creating device 100 by using various programs and various data stored in the storage unit 104.

The CPU 105 identifies the attention-calling area in the map information 141 stored in the storage unit 104, and sets and registers the specified attention-calling area in the map information 141. Here, although the lane change is not prohibited by laws and regulations in the warning area, when the driver of the vehicle drives the vehicle by himself / herself, another vehicle enters in the direction of travel. It is an area where it is difficult to predict that the vehicle will come, and it is an area where the other vehicle can enter. Here, the lane change includes a lane change on a road where two or more vehicles can travel in parallel on a road where no lane is drawn on the road.

The CPU 105 functions as a specific unit that identifies an area (candidate for a warning area) in which lane change is not regulated and it is difficult to predict the protrusion of another vehicle with respect to the traveling direction of the first vehicle. To do.

Further, the CPU 105 detects whether or not there is the other vehicle protruding from the traveling direction of the first vehicle in the region based on the vehicle traveling information having a route that has passed through the region that can be the alert region. Functions as a detector.

Further, the CPU 105 functions as a registration unit that registers an area that can be a caution area as a caution area for calling attention to the user in the map information according to the result detected by the detection unit.

The above is a configuration example of the map information creating device 100.

<Operation of map information creation device>
Next, the operation of specifying and setting the attention area by the map information creating device 100 will be described with reference to FIG.

The CPU 105 extracts an intersection from the map information 141. Then, from the extracted intersections, an intersection having two or more lanes on which the vehicle enters with respect to the intersection is specified (step S201).

The CPU 105 repeats the processes of steps S203 to S208 at all intersections in which the extracted approach lanes are two or more lanes (step S202).

The CPU 105 determines whether or not the number of approaching lanes entering the intersection is larger than the number of exit lanes, which is the number of lanes of the exiting road when the intersection goes straight (step S203). When the number of approaching lanes entering the intersection is larger than the number of exiting lanes (YES in step S203), the process proceeds to step S207.

When the number of approaching lanes entering the intersection is not greater than the number of exiting lanes (NO in step S203), the CPU 105 determines whether or not there is a bus stop within a predetermined distance before the intersection (step S204). To determine whether or not there is a bus stop within a predetermined distance before the intersection, specifically, the bus stop is within a predetermined distance from the end point (may be the center) of the intersection toward the approach lane to the intersection. It means to judge whether there is. If there is a bus stop (YES in step S204), the process proceeds to step S207.

If there is no bus stop in front of the intersection and within the predetermined distance (NO in step S204), the CPU 105 determines whether or not there is an approach road to the road on the approach lane side in front of the intersection and within the predetermined distance. Determine (step S205). The approach road referred to here is a place where a vehicle can enter the road although it is not registered as a road in the map information 141. Specifically, an exit from a parking lot, a building, etc. It is the place where the vehicle leaves from. Further, determining whether or not there is an approach road to the lane within a predetermined distance before the intersection is specifically determined from the end point (may be the center) of the intersection toward the approach lane to the intersection. It refers to determining whether or not there is an approach road for vehicles other than the road within a predetermined distance. If there is an approach road to the lane within a predetermined distance before the intersection (YES in step S205), the process proceeds to step S207.

When there is no approach road to the lane within a predetermined distance before the intersection (NO in step S205), the CPU 105 determines the number of probe information indicating that the lane has been changed within the predetermined distance before the intersection. It is determined whether or not it is more than the threshold value (step S206). Here, the predetermined threshold value may be set by the operator of the map information creating device 100, and it is preferable to set an appropriate number that can be assumed that an accident may occur due to a lane change. The processing of step S206 means that it is desirable to set it as a caution area because there is a high possibility that an accident will occur in a place where there are many lane changes.

If the number of probes that have changed lanes within a predetermined distance before the intersection exceeds a predetermined threshold value (YES in step S206), the process proceeds to step S207. In step S207, the CPU 105 sets the attention area within a predetermined distance including the intersection and sets the map information 141 (step S207). After that, the process proceeds to step S208. On the other hand, if the number of probes that have changed lanes within a predetermined distance before the intersection does not exceed the predetermined threshold value (NO in step S206), it is assumed that the caution area is not set at the intersection, and the process of step S208 is performed. Move to.

In step S208, the CPU 105 determines whether or not the determination regarding the setting of the attention alert area has been performed for all the intersections extracted in step S201, and if not, shifts to the determination of the next intersection and performs the determination. If the process ends.

That is, when the CPU 105 is an intersection having two or more lanes and meets at least one of the conditions of steps S203, S204, S205, and S206, the CPU 105 includes the intersection and starts from the intersection. The area extended to the approach lane side and the exit lane side is specified as a warning area.

As described above, although the map information creating device 100 according to the present embodiment is allowed to change lanes, the area where the driver of the automobile tends to assume that there is no change in lane is specified as a warning area. The map information 141 can be set.

<Navigation system configuration>
FIG. 3 is a block diagram showing a configuration example of a navigation system 300 that uses the map information 141 in which the alert area created by the map information creating device 100 is set. The navigation system 300 is a computer system mounted on a vehicle or the like and having a function of guiding a user who is a driver. The navigation system 300 may be realized by a mobile terminal such as a smartphone held by the user.

As shown in FIG. 3, the navigation system 300 includes a reception unit 301, a position information acquisition unit 302, an output unit 303, a storage unit 304, and a CPU 305.

The reception unit 301 has a function of receiving input from the user of the navigation system 300 and transmitting the input to the CPU 305. The reception unit 301 receives, for example, the input of the destination in the route guidance from the user. The reception unit 301 can be realized by, for example, a hardware key provided in the navigation system 300, a soft key such as a touch key, or the like. The input to the reception unit 301 may be a voice input.

The position information acquisition unit 302 acquires information about the position. The position information acquisition unit 302 has, for example, a function of acquiring information regarding the current position of the navigation system 300. The position information acquisition unit 302 can be realized by, for example, a positioning system represented by GPS (Global Positioning System), GNSS (Global Navigation Satellite System), or the like. The position information can be acquired as numerical values indicating longitude and latitude. The position information acquisition unit 302 transmits the information regarding the acquired position to the CPU 105 as information indicating its own current position.

The output unit 303 has a function of outputting the instructed data according to the instruction from the CPU 305. The output unit 303 may, for example, display image information on a map showing the route searched by the navigation system 300, or may interrupt another vehicle or go out into the traveling lane when the vehicle enters the alert area while driving the vehicle. Information to be noted may be output by outputting it to a monitor, a speaker, or the like provided in the navigation system 300. The monitor or speaker may be an external monitor or speaker connected to the navigation system 300.

The storage unit 304 is a recording medium that stores various data including various programs and map information required for the navigation system 300 to operate. The storage unit 304 is realized by, for example, an HDD (Hard Disc Drive), an SSD (Solid State Drive), or the like. The storage unit 304 rushes into the map information 141 in which the alert area is set, or the alert area set in the map information 141 while the vehicle is running, or at the timing when it is likely to enter, the information for alerting the user. Memorizes the alert program for outputting.

The CPU 305 is a processor that executes processing to be executed by the map information creating device 100 by using various programs and various data stored in the storage unit 304.

In the CPU 305, when the vehicle is running, the position information acquired by the position information acquisition unit 302 is included in the attention area set in the map information 141, or is set for a predetermined time (for example, several seconds). ) Later, when it is determined that the vehicle is included in the caution area, the output unit 303 outputs information that warns the user that there is a possibility that another vehicle may protrude from another lane or change lanes.

The above is the operation of the navigation system 300.

<Operation of navigation system>
FIG. 4 is a flowchart showing an operation example related to alerting during traveling by the navigation system 300.

As shown in FIG. 4, the position information acquisition unit 302 of the navigation system 300 sequentially acquires the position information while the vehicle is traveling (step S401). The position information acquisition unit 302 transmits the acquired position information to the CPU 305.

The CPU 305 determines whether or not the vehicle has entered the alert area based on the acquired position information (step S402). When it is determined that the vehicle has entered the alert area (YES in step S402), the CPU 305 notifies that another vehicle may enter the traveling lane in which the own vehicle is traveling (YES in step S402). By step S403), the driver is alerted. After that, the process proceeds to step S404. Here, the entry of another vehicle into the driving lane means that another vehicle enters due to a lane change or the like in the direction of the course (traveling lane) in which the vehicle is traveling, or overtakes another vehicle. It means the case where it sticks out. If the vehicle has not entered the alert area (NO in step S402), the process proceeds to step S404.

The CPU 305 determines whether or not the engine of the vehicle is stopped (step S404), returns to the process of step S401 if it is not stopped (NO in step S404), and returns to the process of step S401, and if it is stopped (step S404). YES), the process ends. The determination in step S404 can be determined by obtaining vehicle status information, for example, by connecting the network (CAN) inside the vehicle and the navigation system 300.

In this way, although lane changes are legally permitted, in areas where lane changes are generally not performed, and in areas where it is difficult for the user to predict that another vehicle will enter the vehicle in the course direction. However, if another vehicle actually enters, it may not be possible to respond to unforeseen circumstances and an accident may occur. However, if the navigation system 300 uses the map information 141 created by the map information creating device 100, the user can be alerted when approaching such an area, and an accident or the like can be prevented.

<Specific example>
FIG. 5 is an example of a map for explaining a specific example of the area set as the alert area by the map information creating device 100.

As an example, it is assumed that there is an intersection 501 as shown in FIG. Then, in FIG. 5, for example, it is assumed that the bus 502 stopped at the bus stop 503 travels. In the example of FIG. 5, the bus 502 travels from left to right toward the drawing. At this time, the road on which the bus 502 is traveling has four lanes on the side entering the intersection 501, and the lane of the road on the exit side from the intersection 501 is three lanes when going straight on the intersection 501. ..

At this time, as shown in FIG. 6, it is assumed that there is a vehicle 606 traveling in the traveling lane 604 next to the traveling lane 603 in which the bus 502 travels. On the other hand, it is assumed that the bus 502 needs to go straight through the intersection 501 after departing from the bus stop 503 according to a predetermined route. At this time, as the traveling route that the bus 502 can take, a route such as arrow 601 or arrow 602 can be considered. In such a case, although the traveling lane 603 in which the bus 502 is traveling is a left turn lane, the vehicle goes straight on the route shown by arrow 601 or changes to the straight lane on the route shown by arrow 602. May be legally permitted. In addition, this lane change may be permitted even if the boundary line between the traveling lane 603 and the traveling lane 604 is a yellow solid line indicating prohibition of protrusion, and a white dashed line is drawn beside the yellow solid line to make it white. It may be stated that only lane changes are allowed from the side where the broken line is drawn to the side where the broken line is not drawn.

However, such a lane change is often difficult to predict for the driver of the vehicle 606 traveling in the traveling lane 604. For example, the driver of the vehicle 606 thinks that the driving lane 603 next to the driving lane 604 in which the vehicle is traveling is a left turn lane, and therefore no vehicle will change lanes from there to the driving lane 604. In some cases, it can be said that it is difficult to predict. Therefore, for the driver of the vehicle 606 who does not anticipate the lane change, if the bus 502 travels as shown by the arrows 601 and 602, the lane change of the bus 502 cannot be predicted and may cause a contact accident. There is sex.

Therefore, the map information creating device 100 sets the map information 141 for navigation as a caution area having such a possibility. As an example, as shown in FIG. 7, the map information creating device 100 may set an area including the intersection 501 and surrounded by the alternate long and short dash line 702 that surrounds the entire lane as a warning area. As shown by the dotted line 701, in particular, the area where there is a possibility of an accident as described above may be specified and set as a caution area.

The distance determination in step S204 determines whether or not the distance D1 or the distance D2 in FIG. 7 is within a predetermined distance. Further, in the determination of step S205, in FIG. 7, when the entrance / exit from the parking lot of a certain building is located instead of the bus stop 503, the distance D1 or the distance D2 to the intersection is within a predetermined distance. It will be determined whether or not.

<Summary>
According to the map information creating device 100 according to the present embodiment, it is possible to identify a place where it is difficult to predict a lane change and set it as a navigation map information as a caution area. Then, according to the navigation system using the map information, when a vehicle enters the attention area, it is possible to call attention to the possibility that another vehicle may have entered the direction of travel of the own vehicle. It is possible to reduce the possibility of an accident occurring in a place where it is difficult to predict a lane change by a vehicle.

<Supplement>
Needless to say, the map information creating device according to the above embodiment is not limited to the above embodiment, and may be realized by another method. Hereinafter, various modification examples will be described.

(1) In the above embodiment, in each of the processes of steps S203, S204, and S205, the transition destination when it is determined to be YES is set to step S207, but this is not the case. The transition destination of the process in YES in steps S203 to S205 may be step S206, and by configuring in this way, a predetermined number of lane changes occur while satisfying the conditions of steps S203 to S205. The location may be configured to be set as a warning area. That is, even if any of the conditions of steps S203 to S205 is met, if the number of lane changes is small, it is unlikely that an accident will occur due to lane change, vehicle protrusion, or the like. , It is not necessary to set it as a warning area. With such a configuration, it is possible to prevent the number of alert areas from being unnecessarily increased.

(2) In the above embodiment, in addition to the determination in step S206, it is determined whether or not the number of accidents actually caused by changing lanes at the intersection, protruding the vehicle into another lane, or the like is equal to or greater than a predetermined number. May be added. It can be said that the area where an accident has occurred in the past has a higher possibility of an accident than other areas, so set it as a warning area and call the driver who drives the vehicle. The occurrence of accidents can be suppressed.

(3) In the above embodiment, the CPU 105 may set the alert area for each lane. That is, the process shown in steps S203 to S206 in FIG. 2 may be performed for each lane at the intersection to set a warning area for each lane. When setting the alert area for each lane, the determination in steps S204 and S205 affects the lane at the end of the road and does not affect the lane on the center side of the lane. It is possible that a warning area may be set only in the lane.

(4) In the above embodiment, as the probe information used in step S206, all probe information that has passed through the intersection from the past to the present may be used, or a predetermined period from the present to the past ( For example, probe information for half a year or one year may be used. Further, in step S206, the determination is made by a number, but this may be made by a ratio to the whole, not by a number. That is, it may be determined whether or not the ratio of the number of probes that have changed lanes exceeds a predetermined threshold value with respect to the total number of probes that have passed through the intersection.

(5) Although not particularly described in the above embodiment, the map information creating device 100 is a case where the warning area is set for each lane, and the vehicle is traveling in the warning area and is adjacent to the map information creating device 100. When the attention area is not set in the lane or the like, the map information 141 may be created so as to present the lane change to the lane in which the attention area is not set. Then, the output unit 303 of the navigation system 300 may make such a presentation according to the setting of the map information 141.

(6) In the above embodiment, when the yellow solid lane is used as the lane, the driver uses the yellow solid lane as the boundary line with respect to the traveling lane in which the driver is traveling. He said that lane changes are difficult to predict. This is the case if the driver does not understand the meaning of the boundary line, whether it is a yellow lane or a boundary line using a solid yellow line and a white dashed line that clearly indicate that the lane is crossed. In particular, the same can be said.

Therefore, in view of the above problem, the map information creating device 100 uses a solid yellow line as a boundary line within a predetermined distance in front of the intersection as a criterion for determining whether or not to set it as the attention area in steps S203 to S206. It may be determined whether or not the boundary line is drawn in parallel with the solid yellow line and the white broken line as the boundary line within a predetermined distance before the intersection. Information on what kind of boundary line is used between lanes is registered in the map information 141, and the above-mentioned determination can be made by using this information. Then, when these boundary lines are used within a predetermined distance before the intersection, the map information creating device 100 may be registered and set in the map information 141 as a caution area.

Further, the map information creating device 100 may make determinations in steps S203 to S206 and determinations regarding the boundary line in parallel, or among the determinations in steps S203 to S206 and the determination regarding the boundary line. It may be set to be set as a warning area only when two or more conditions are satisfied. Of the conditions for steps S203 to S206 and the boundary line, when a plurality of conditions are satisfied, the attention area is set in consideration of the actual traffic regulation and the actual driving situation among those combinations. Therefore, it is preferable to use the one that the operator determines to be suitable for combination.

(7) In the above embodiment, as a method of creating map information including a warning area in the map information creation device, the processor of the map information creation device executes a map information creation program or the like to create the map information. However, this may be realized by a logic circuit (hardware) or a dedicated circuit formed in an integrated circuit (IC (Integrated Circuit) chip, LSI (Large Scale Integration)) or the like in the device. Further, these circuits may be realized by one or a plurality of integrated circuits, and the functions of the plurality of functional units shown in the above-described embodiment may be realized by one integrated circuit. LSIs are sometimes called VLSIs, super LSIs, ultra LSIs, etc., depending on the degree of integration. That is, as shown in FIG. 8, the map information creating device 100 may be composed of a reception circuit 101a, a reception circuit 102a, an output circuit 103a, a storage circuit 104a, and a control circuit 105a, respectively, and the reception unit 101 and the reception unit 101, respectively. It corresponds to the unit 102, the output unit 103, the storage unit 104, and the CPU 105.

Further, the map information creation program may be recorded on a recording medium that can be read by a processor, and the recording medium may be a "non-temporary tangible medium" such as a tape, a disk, a card, a semiconductor memory, or a programmable medium. A logic circuit or the like can be used. Further, the map information creation program may be supplied to the processor via an arbitrary transmission medium (communication network, broadcast wave, etc.) capable of transmitting the map information creation program. That is, for example, the map information creation program may be downloaded and executed from the network using an information processing device such as a smartphone. The present invention can also be realized in the form of a data signal embedded in a carrier wave, in which the map information creation program is embodied by electronic transmission.

The map information creation program uses, for example, script languages such as ActionScript and JavaScript (registered trademark), object-oriented programming languages such as Objective-C, Java (registered trademark), and C ++, and markup languages such as HTML5. Can be implemented.

(8) Various examples shown in the above-described embodiment and various examples shown in <Supplement> may be appropriately combined. Further, each operation shown in each flowchart may be executed in parallel or the execution order may be changed if there is no contradiction as a result.

100 Map information creation device 101 Reception unit 102 Reception unit 103 Output unit 104 Storage unit 105 CPU (specific unit, detection unit, registration unit)
141 map information

Claims (14)

A storage unit that stores map information and
A specific part that identifies an area where lane change is not regulated and where it is difficult to predict the protrusion of other vehicles with respect to the traveling direction of the first vehicle.
A receiver that receives vehicle travel information indicating the route the vehicle has traveled, and
A detection unit that detects whether or not there is another vehicle that protrudes in the traveling direction of the first vehicle in the region based on vehicle traveling information having a route that has passed through the region.
A registration unit that registers the area in the map information as an attention area that should be alerted to the user according to the result detected by the detection unit.
A map information creation device equipped with. The specific portion is an intersection in the map information, and is an area in which a yellow solid line type 1 vehicle boundary line is drawn between the lanes of a road composed of a plurality of lanes entering the intersection.
The detection unit detects whether or not there is a vehicle whose vehicle travel information indicates that the vehicle has traveled across the first-class vehicle boundary line.
When there is a vehicle indicating that the detection unit has traveled across the first-class vehicle boundary line, the registration unit registers the area as the caution area in the map information. The map information creation device according to claim 1. The specific portion is an intersection in the map information, and is an area in which a type 2 vehicle boundary line of a solid yellow line and a white broken line is drawn between the lanes of a road consisting of a plurality of lanes entering the intersection. And
The detection unit detects whether or not there is a vehicle indicating that the vehicle traveling information has changed lanes across the second-class vehicle boundary line.
When there is a vehicle indicating that the detection unit has changed lanes across the second-class vehicle boundary line, the registration unit registers the area in the map information as the caution area. The map information creation device according to claim 1 or 2. The specific portion refers to a location in the map information where the number of lanes on the side entering the intersection is greater than the number of lanes on the side entering the intersection and exiting the intersection. Identify as the area
The detection unit determines whether or not there is a vehicle in the lane on the side entering the intersection that indicates that the vehicle traveling in the lane in which the traveling direction is determined has traveled in a direction different from the traveling direction. The map information creating device according to any one of claims 1 to 3, wherein the map information creating device is characterized by detecting. The specific portion is characterized in that, in the map information, a place where a bus stop is located within a predetermined distance from the intersection in the lane on the side entering the intersection is specified as the area. The map information creation device according to any one of 1 to 4. In the map information, the specific portion specifies, in the map information, a place where a vehicle enters the lane on the side entering the intersection within a predetermined distance from the intersection and a vehicle enters the lane from outside the road as the area. The map information creating device according to any one of claims 1 to 5, wherein the map information is created. The detection unit detects whether or not there is a protrusion from another lane for each lane.
The map information creating device according to any one of claims 1 to 6, wherein the registration unit registers the attention area for each lane. The map information is set so as to output information indicating that the vehicle may protrude from another lane or change lanes when the vehicle approaches the area registered as the alert area. The map information creating device according to any one of claims 1 to 7, further comprising a setting unit. The setting unit further sets presentation information for presenting the vehicle to change lanes to a lane in which another alert area is not set when the vehicle is traveling in a lane in which the alert area is set. The map information creating device according to claim 8, wherein the map information is created. The detection unit detects whether or not there are a predetermined number or more of vehicles protruding from the vehicle boundary line in the region within a predetermined period based on vehicle travel information having a route that has passed through the region.
The registration unit according to any one of claims 1 to 9, wherein when there are a predetermined number or more of vehicles protruding from the vehicle boundary line in the area, the area is registered as a warning area. Map information creation device. The detection unit detects whether or not there is a predetermined ratio or more of vehicles protruding from the vehicle boundary line in the region based on vehicle travel information having a route that has passed through the region.
The registration unit according to any one of claims 1 to 9, wherein when there are a predetermined ratio or more of vehicles protruding from the vehicle boundary line in the area, the area is registered as a caution area. Map information creation device. A map information creation device equipped with a storage unit that stores map information
A specific step to identify an area where lane change is not regulated and where it is difficult to predict the protrusion of other vehicles with respect to the traveling direction of the first vehicle.
A reception step for receiving vehicle travel information indicating the route the vehicle has traveled, and
A detection step of detecting whether or not there is another vehicle that protrudes in the traveling direction of the first vehicle in the region based on vehicle traveling information having a route that has passed through the region.
A registration step of registering the area in the map information as an attention area for calling attention to the user according to the result detected by the detection step.
How to create map information to execute. On the computer
A memory function that stores map information and
A specific function that identifies an area where lane change is not regulated and where it is difficult to predict the protrusion of other vehicles with respect to the traveling direction of the first vehicle.
A reception function that receives vehicle travel information indicating the route the vehicle has traveled, and
A detection function that detects whether or not there is another vehicle that protrudes in the traveling direction of the first vehicle in the region based on vehicle traveling information having a route that has passed through the region.
A registration function for registering the area in the map information as an attention area for calling attention to the user according to the result detected by the detection function.
Map information creation program that realizes. A storage medium in which the map information creation program according to claim 13 is recorded.

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