JP2010020564A - Information notification device, control method therefor and control program thereof - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an information notification device calling attention of a user to the effect that a possibility that a vehicle except own vehicle travels from an intersecting road does not exist, even when traffic signal and temporary stop information is not present at an intersection. <P>SOLUTION: An intersection information reading means 32 reads nearest intersection information on road data, wherein own vehicle position detected by own vehicle position detection means 31 exists. A traffic signal decision means 33 decides whether a traffic signal is provided in a position, corresponding to the intersection. When it is decided that there is no traffic signal information, a temporary stop information decision means 34 decides whether the temporary stop information is present in the intersection read through the intersection information reading means 32. When it is decided that there is no temporary stop information, a notification means 35 outputs warning information to the effect that the temporary stop information does not exist in the intersection to a display guide part 7 or a voice guide part 9. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to an information notification device that notifies information such as an intersection located on a road and a temporary stop, a control method thereof, and a control program, and there is no vehicle stop information that is information such as a temporary stop or a traffic light at the intersection. In addition, the present invention relates to a technique for informing information that alerts a user who is driving a vehicle.

  In recent years, with the spread of automobiles and the development of information processing technology, navigation devices are rapidly spreading as in-vehicle information terminals that are mounted on a moving body such as a vehicle and perform route guidance. The navigation device uses map data prepared in advance and displays not only the current position information of its own vehicle, which is measured by GPS, on the surrounding map, but also calculates the route to the specified destination and displays it on the screen. And synthetic voices to guide the route.

  A general route guidance method will be described. First, a database obtained by digitizing roads, place names, buildings, etc. on a map is stored as map data in a storage medium such as a CD-ROM, DVD-ROM, or HDD. The destination is set by the user by using the map data stored in advance. Then, the current position information of the vehicle is estimated by using at least one of self-contained navigation using a gyroscope and a vehicle speed pulse, and radio navigation using GPS and FM multiplexing, and according to road data in the map database, Search and calculate a guide route from the estimated current position to the set destination. Thereby, route guidance is realized by displaying the calculated guide route and the current position on the screen while performing map matching.

  Here, conventionally, in addition to the route guidance method as described above, a device having a function of notifying a user driving a vehicle of a traffic signal, a stop position, and the like on a running road has been proposed.

For example, a driving assistance device having a function of issuing a warning to a user who drives a vehicle at a temporary stop point on a road where the vehicle is located has been proposed (see Patent Document 1). Specifically, it is equipped with warning means to turn on a warning light or notify you to “pause” when the vehicle you are driving approaches within a predetermined distance from the nearest temporary stop. A driving assistance device has been proposed.
JP 10-76922 A

  By the way, in the device having the function of notifying the information of the temporary stop point on the road as described above, a warning is given if there is a temporary stop point on the running road, and a warning is given if there is no temporary stop point. It does not have a function to notify. In a situation where there is no temporary stop point on the map data at the intersection on the road, a case where the vehicle jumps out of the road intersecting with the road on which the vehicle is traveling is also expected. Therefore, it is necessary to alert the user to the vehicle jumping out at such an intersection, and it is not necessary to notify any information even when there is no temporary stop point.

  The present invention has been proposed in order to solve the above-described problems, and the object of the present invention is when there is no pause information for temporarily stopping the vehicle from each direction at the intersection. However, it is to provide an information notification apparatus, a control method thereof, and a control program capable of prompting a user to notice that there is a possibility of traveling of a vehicle other than the own vehicle from an intersecting road.

The present invention solves the above problems by the following means. The invention of claim 1 is an information notification device for notifying a user of warning information based on map data in which intersection information and vehicle stop information are stored, the vehicle position detection means for detecting the vehicle position, Intersection information extracting means for extracting from the map data the intersection information existing in the traveling direction on the road where the own vehicle is detected detected by the own vehicle position detecting means, and the intersection information extracted by the intersection information extracting means Warning information is notified to the user when it is determined by the vehicle stop information determination means that the vehicle stop information exists at a position where the vehicle stop information is present, and the vehicle stop information determination means determines that the vehicle stop information does not exist. Notification means;
It is provided with.

  The invention according to claim 8 is an information notification device that grasps the invention according to claim 1 from the viewpoint of the method, and notifies the user of warning information based on map data in which intersection information and vehicle stop information are stored. It is a control method, and a vehicle position detection step for detecting a vehicle position, and intersection information existing in a traveling direction on a road on which the vehicle is detected detected by the vehicle position detection step is extracted from the map data. An intersection information extraction step, a vehicle stop information determination step for determining whether vehicle stop information exists at a location where the intersection information extracted by the intersection information extraction step, and a vehicle stop by the vehicle stop information determination step And a notification step of notifying the user of warning information when it is determined that the information does not exist.

  The invention of claim 15 is the one in which the invention of claim 1 or claim 8 is grasped from the viewpoint of a computer program, and alert information is notified to a user based on map data in which intersection information and vehicle stop information are stored. An information notification apparatus control program comprising a computer that performs a vehicle position detection process for detecting the vehicle position and a road on which the vehicle is detected by the vehicle position detection process. A vehicle for determining whether or not vehicle stop information exists at a location where the intersection information extracted by the intersection information extraction process and the intersection information extracted by extracting the intersection information existing in the traveling direction from the map data. When it is determined that there is no vehicle stop information by the stop information determination process and the vehicle stop information determination process, A notification process of notifying the warning information Te, characterized in that for the execution.

  According to a second aspect of the present invention, in the information notification apparatus according to the first aspect, the vehicle stop information is signal information and temporary stop information.

  A ninth aspect of the invention is an information notification apparatus control method according to the eighth aspect, wherein the vehicle stop information includes traffic signal information and temporary stop information. It is characterized by being.

  According to a third aspect of the present invention, in the information notification device according to the second aspect, the vehicle stop information determining means determines whether traffic signal information is present at a location where the intersection information is located based on the map data. It is characterized by.

  The invention of claim 10 grasps the invention of claim 3 from the viewpoint of the method, and in the control method of the information notification device according to claim 9, the vehicle stop information determination step includes: It is determined based on the map data whether traffic signal information is present at a location.

  According to a fourth aspect of the present invention, in the information notifying device according to the second or third aspect, the vehicle stop information determining means determines whether or not temporary stop information is imposed on each link connected to a node that is an intersection. The presence of the temporary stop information is determined.

  The invention of claim 11 grasps the invention of claim 4 from the viewpoint of the method, and in the control method of the information notification device according to claim 9 or 10, the vehicle stop information determination step is performed at an intersection. The presence of the temporary stop information is determined based on whether temporary stop information is imposed on each link connected to a certain node.

  In the above aspect, even when the vehicle stop information of the traffic signal information and the temporary stop information does not exist at the intersection, the warning information is notified to the user by the notification means, so that other vehicles travel at the intersection. Can call attention. Thereby, it is possible to prevent a collision accident with a sudden jumping-out vehicle at an intersection, and to improve driving safety.

  According to a fifth aspect of the present invention, in the information notification device according to any one of the second to fourth aspects, the vehicle stop information determination unit has a function of detecting position information of a link on which no temporary stop information is imposed. And the notification means notifies warning information based on position information of the link.

  The invention of claim 12 grasps the invention of claim 5 from the viewpoint of the method, and in the control method of the information notification device according to any one of claims 9 to 11, the vehicle stop information determination The step detects position information of a link to which no pause information is imposed, and the notification step notifies warning information based on the position information of the link.

  In the above aspect, providing an information notification device capable of notifying information to appropriately alert a user by acquiring position information of a link for which no pause information is imposed Can do. For example, when there is a link where no stop information is imposed on the left side when viewed from the direction of travel of the vehicle at the intersection, the notification means notifies the user that “Please be aware of the vehicle from the left side”. It is possible to prevent a collision accident with a sudden jumping vehicle at an intersection, and to improve driving safety.

  A sixth aspect of the present invention is the information notification apparatus according to the first aspect, wherein the intersection information extracting means extracts the nearest intersection information of the own vehicle position.

  The invention of claim 13 grasps the invention of claim 6 from the viewpoint of the method, and in the control method of the information notification device according to claim 8, the intersection information extracting step includes The latest intersection information is extracted.

  According to the above aspect, since the user can acquire not the intersection information that is too far but the latest information that passes next, recognition of attention is increased, and a highly convenient device is provided. Is possible.

  The invention according to claim 7 is an information notification device for notifying a user of warning information based on map data in which intersection information and vehicle stop information are stored, the vehicle position detection means for detecting the vehicle position, Intersection information extracting means for extracting from the map data the intersection information existing in the traveling direction on the road where the own vehicle is detected detected by the own vehicle position detecting means, and the intersection information extracted by the intersection information extracting means When the vehicle stop information determining means for determining whether the vehicle stop information exists at the position where the vehicle is located, and when the vehicle stop information determining means determines that the vehicle stop information does not exist, the traveling direction of the own vehicle at the intersection Crossing angle determining means for determining whether the angle formed by the traveling direction of the vehicle on the road intersecting with the road where the vehicle is located is an acute angle, and If it is determined that the angle, characterized by comprising an informing means for informing a warning information to the user.

  The invention of claim 14 is an information notification device that grasps the invention of claim 7 from the viewpoint of the method, and notifies the user of warning information based on map data in which intersection information and vehicle stop information are stored. It is a control method, and a vehicle position detection step for detecting a vehicle position, and intersection information existing in a traveling direction on a road on which the vehicle is detected detected by the vehicle position detection step is extracted from the map data. An intersection information extraction step, a vehicle stop information determination step for determining whether vehicle stop information exists at a location where the intersection information extracted by the intersection information extraction step is present, and a vehicle stop by the vehicle stop information determination step A vehicle on a road that intersects the traveling direction of the vehicle and the road where the vehicle is located at the intersection when it is determined that no information exists. A crossing angle determining step for determining whether an angle formed with the traveling direction is an acute angle, and a notifying step for notifying the user of warning information when the crossing angle determining step determines that the angle is acute. It is characterized by performing.

  According to the above aspect, when the angle formed by the traveling direction of the vehicle and the traveling direction of the vehicle on the road intersecting at the intersection is an acute angle, it is considered that the view of the intersection is bad, and thus the notification is made. Warning information can be notified to the user by means. That is, when the formed angle is an obtuse angle, there is no need to call the user particularly if there is no pause information as an intersection with a good view, but if the view is bad, a steep vehicle In some cases, the user may not be aware of the pop-up of the vehicle, so by notifying the warning information, it is possible to prevent a collision accident with the vehicle and improve the driving safety.

  As described above, according to the present invention, even when there is no traffic light and temporary stop information at an intersection, an information notification device capable of notifying warning information to call attention to a user who is driving a vehicle, The control method and control program can be proposed.

  Next, the best mode for carrying out the present invention will be described with reference to FIGS.

[1. First Embodiment]
[1.1. Constitution]
In the first embodiment, warning information that alerts the user when there is no temporary stop information on the road on which the vehicle travels and on the road on which the vehicle travels is displayed to the user at the intersection. An information notification apparatus (hereinafter referred to as “the present apparatus”) to be notified will be described, and can be grasped as a control method and a control program. The configuration of the present apparatus is shown in FIG. In the configuration described below, the route guidance function is not mentioned, but this is not excluded, and the present invention is a concept that includes an information notification device having a route guidance function.

  1 is an FM multiplex reception and processing unit for acquiring VICS (Vehicle Information and Communication System) information as traffic information, and 2 is for acquiring VICS information from beacons provided on general roads and highways. Beacon reception and processing unit.

  Reference numeral 3 denotes a main CPU (central processing unit) that controls the entire system and its peripheral circuits, and is a control unit that performs information processing including control of each part of the apparatus. The specific configuration of the control unit 3 will be described in detail later.

  4 is a dynamic RAM (DRAM) for loading the main program, 5 is a static RAM (SRAM) with battery backup for holding memory contents such as settings even when the main power is turned off, and 6 is for starting up etc. The ROM is accessed from the control unit 3. Here, the main memory M includes a DRAM 4, an SRAM 5, and a ROM 6.

  Reference numeral 7 denotes a display guide unit composed of a display screen such as a liquid crystal display panel for drawing and displaying information such as a map. Reference numeral 8 denotes a video RAM (VRAM) provided for the display guide unit 7. Reference numeral 9 denotes a voice guide unit including a speaker or the like that outputs voice data. As will be described later, the voice guidance unit 9 emits a warning sound in response to a command from the control unit 3 (command by a notification unit described later), or, for example, at the intersection where no stop information exists, Please notify me ".

  In the above description, the display guide unit 7 and the voice guide unit 9 are provided separately. However, the display guide unit 7 and the voice guide unit 9 may be configured as a unit provided with both a display unit such as a display screen and a voice output unit such as a speaker. It is.

  Reference numeral 10 denotes an input unit that receives input of information and operations, and is a control device that detects an input from a touch key or the like. The configuration and type of the input unit is arbitrary, and operation switches around the display guide unit 7 In addition to hard keys, a remote control unit, a touch sensor integrated with a display panel, or the like can be used alone or in any combination.

  A user interface unit 11 connects the display guide unit 7, the voice guide unit 9, the input unit 11, and the control unit 3 using an I / O control circuit, a driver, or the like. Reference numeral 12 denotes a TV reception and processing unit for receiving TV (various television broadcasts).

  Reference numeral 13 denotes a vehicle information acquisition unit 13 that detects a vehicle speed from a vehicle speed pulse obtained from the vehicle. The vehicle information acquisition unit 13 can also detect an operation or a state such as parking.

  A storage device 14 is a storage unit that stores various databases using a drive such as an HDD, a DVD-ROM, or a CD-ROM. In addition to the map database including road data, the storage unit 14 stores other search data and map related data.

  This map database is composed of road data composed of links, nodes, traffic conditions, etc., and background data and name data displayed in association with the positional relationship with the road data. For example, the intersection information is set as a shared node in which three or more links are connected based on road data composed of link strings, the actual intersection drawing is the background data, and the intersection name is the name data. Is set to

  Further, the temporary stop information is stored as a road condition for the road data including a link string. That is, it is set in association with the nodes and links constituting the road data. The traffic signal information is set as background data in association with the positional relationship with the road data. The storage unit 14 also stores route guidance data related to route guidance, and is stored in association with each other by using a link ID that constitutes the road data. The traffic signal information and the temporary stop information correspond to “vehicle stop information” in the claims.

  Reference numeral 15 denotes a positioning unit that obtains navigation information related to the behavior of the host vehicle, such as the current position and direction, using a positioning technique (eg, GPS, gyroscope, geomagnetic sensor, etc.). Here, the current position information is determined by the radio navigation information acquired using the GPS that is the positioning unit 15 and the independent navigation information acquired through the gyroscope. The information received from the FM multiplex reception and processing unit 1 can be adopted as the radio navigation information, and the information calculated based on the vehicle speed detected through the vehicle information acquisition unit 13 can be adopted as the independent navigation information. is there.

Moreover, the control part 3 has the following processing means (31, 32 ... shown in FIG. 1) corresponding to the function and effect | action mentioned later.
Reference numeral 31 denotes own vehicle position detection means for sequentially calculating and detecting the current position information of the vehicle, that is, the own vehicle position information from the positioning unit 15 and the vehicle information acquisition unit 13.

  Reference numeral 32 denotes intersection information reading means (corresponding to “intersection information extracting means”) for reading intersection information on road data where the own vehicle position detected by the own vehicle position detecting means 31 exists. This intersection information reading means 32 reads the latest intersection information existing on the road data along the traveling direction of the host vehicle. The intersection information reading means 32 reads a shared node to which three or more links are connected as an intersection, reads intersection information stored in advance on the road data as an intersection, or stores each intersection. Intersection information can be read from the database.

  33 is a traffic signal judging means for judging whether a traffic light is provided at the intersection based on the intersection information read by the intersection information reading means 32. More specifically, the traffic signal determination unit 33 determines whether traffic signal information exists at the intersection read by the intersection information reading unit 32 from the background data on the map database stored in the storage unit 14.

  34 is temporary stop information determination means for determining whether there is temporary stop information at a location where the intersection information read by the intersection information reading means 32 is located. Specifically, the temporary stop information determination unit 34 receives the temporary stop information as a traffic condition for three or more links connected to the shared node that is the intersection read by the intersection information reading unit 32. Determine if it is not imposed.

  The temporary stop information determination means 34 is a temporary condition that is a passage condition for each of road data on which the vehicle is traveling and road data intersecting at the intersection at the intersection read by the intersection information reading means 32. It is also possible to determine whether stop information is imposed. In practice, when the traffic signal determining unit 33 determines that there is no traffic signal at the intersection, the temporary stop information determination unit 34 determines whether there is temporary stop information at the intersection.

  35, when the pause information determination means 34 determines that there is no pause information at the intersection, the warning information is notified through the display guide unit 7 or the voice guide unit 9 to alert the user. Informing means. For example, when it is determined that there is no temporary stop information, the notification unit 35 can output a warning sound or voice data “Please be careful with the car from the right” through the voice guidance unit 9. It is also possible to display it as text data on the display screen through the display guide section 7.

  The notification by the notification means 35 is not particularly limited to the above, but alerts the user who is driving the vehicle that there may be a vehicle that may jump out of the intersection. Any aspect is included if possible.

[1.2. Action]
Next, the operation of the first embodiment based on the above configuration will be described below with reference to FIGS.
First, as shown in FIG. 2, based on the information acquired from the vehicle information acquisition unit 13, the positioning unit 15, and the FM multiplex reception and processing unit 1, the current position information of the vehicle, that is, the own vehicle, through the own vehicle position detection means 31. The position information is detected (STEP 201).

  Then, the intersection information reading means 32 reads the latest intersection information on the road data where the own vehicle position detected by the own vehicle position detecting means 31 exists (STEP 202). This intersection information reading means 32 reads the intersection information on the road data existing along the traveling direction of the host vehicle.

  When the intersection information is read by the intersection information reading unit 32, the traffic signal determining unit 33 determines whether a traffic signal is provided at a location corresponding to the intersection (STEP 203). That is, the traffic signal determination means 33 determines whether traffic signal information exists at the location where the intersection read by the intersection information reading means 32 is located from the background data on the map database stored in the storage unit 14.

  If the traffic signal determining means 33 determines that there is no traffic signal information (NO in STEP 203), the temporary stop information determining means 34 has temporary stop information at the intersection read through the intersection information reading means 32. Is determined (STEP 204). In other words, the temporary stop information determination means 34 is provided with temporary stop information as a traffic condition for three or more links connected to the shared node that is the intersection read by the intersection information reading means 32. Determine.

  As shown in FIG. 3, when the temporary stop information determining means 34 determines that there is no temporary stop information at the intersection (NO in STEP 204), the notification means 35 warns that there is no temporary stop information at this intersection. Is output to the display guide unit 7 and the voice guide unit 9 (STEP 205). For example, when it is determined that there is no temporary stop information, the notification unit 35 emits a warning sound via the voice guidance unit 9 to the driving user. Further, the information “Please be careful about vehicles jumping out from the left and right” is output to the display guide unit 7 as text data, or is output to the voice guide unit 9 as voice data.

  On the other hand, when it is determined that the traffic signal information is present by the traffic signal determination means 33 (YES in STEP 203), or when the temporary stop information determination means 34 determines that there is temporary stop information as shown in FIG. (YES in STEP 204) Since the safety is maintained by the traffic light or the stop sign at the intersection read by the intersection information reading means 32, information that alerts the user by the notification means 35 is left unattended. The process ends.

  According to the first embodiment as described above, even when there is no traffic signal at the intersection and there is no temporary stop information, the notification means notifies the user of the predetermined information. Attention can be given to the traveling of other vehicles at the intersection. Thereby, it is possible to prevent a collision accident with a sudden jump-out vehicle at the intersection, and to improve driving safety.

[2. Second Embodiment]
[2.1. Constitution]
As shown in FIG. 5, the information notification apparatus according to the second embodiment has a configuration in which the temporary stop information determination unit 34 of the control unit 3 in the first embodiment is improved as follows. Other than that, it is the same as the structure of the information alerting | reporting apparatus which concerns on 1st Embodiment, attaches | subjects the same code | symbol to the same site | part, and abbreviate | omits description.

  Unlike in the first embodiment, the temporary stop information determination means 34 in the second embodiment determines whether there is temporary stop information at an intersection at the same time. And whether or not temporary stop information is imposed on each of the road data intersecting at the intersection.

  Specifically, at the intersection read by the intersection information reading means 32, the own vehicle road temporary stop determination means 34 a includes temporary stop information in the road data where the own vehicle position detected by the own vehicle position detection means 31 exists. Determine if there is no charge. That is, at an intersection that is a shared node to which three or more links are connected, it is determined whether or not temporary stop information is imposed as a traffic condition on the link connected to the node in the road data where the vehicle exists. To do.

  When the own vehicle road temporary stop determination means 34a determines that no temporary stop information is imposed in the road data where the own vehicle exists, the intersection road temporary stop determination means 34b determines that the own vehicle is at the intersection. It is determined whether or not temporary stop information is imposed on road data that intersects existing road data. That is, the intersection road temporary stop determination unit 34b temporarily stops at a link other than the link in the road data where the own vehicle connected to the node exists for the node that is an intersection to which three or more links are connected. Determine if any information is imposed.

  Further, the intersecting road temporary stop determining means 34b includes a crossing road data to which no temporary stop information is imposed, that is, a link other than the link in the road data where the own vehicle connected to the node exists. When it is determined that there is one for which no pause information is imposed, the position information of the link for which the pause information is not imposed is determined. For example, it is determined whether the link on which no temporary stop information is imposed is on the left or right side when viewed from the traveling direction to the intersection of the own vehicle.

[2.2. Action]
Next, the operation of the second embodiment based on the above configuration will be described below with reference to FIGS.
First, as shown in FIG. 6, as in the first embodiment, based on the information acquired from the vehicle information acquisition unit 13, the positioning unit 15, and the FM multiplex reception and processing unit 1, Current position information of the vehicle, that is, own vehicle position information is detected (STEP 601).

  Then, the intersection information reading means 32 reads the latest intersection information on the road data where the own vehicle position detected by the own vehicle position detecting means 31 exists (STEP 602). This intersection information reading means 32 reads the intersection information on the road data existing along the traveling direction of the host vehicle.

  When the intersection information is read by the intersection information reading unit 32, the traffic signal determining unit 33 determines whether a traffic signal is provided at a location corresponding to the intersection (STEP 603). That is, the traffic signal determination unit 33 determines whether there is a traffic signal at a location corresponding to the intersection read by the intersection information reading unit 32 from the background data on the map database stored in the storage unit 14.

  STEPs 601 to 603 up to the above are the same as STEPs 201 to 203 according to the first embodiment. When the traffic signal determining means 33 determines that the traffic signal information does not exist (NO in STEP 603), the second implementation is performed. As a feature of the embodiment, at the intersection read by the intersection information reading unit 32, the own vehicle road temporary stop determination unit 34a first stops at the road data where the own vehicle position detected by the own vehicle position detection unit 31 exists. Determine if any information is imposed. That is, at an intersection that is a shared node to which three or more links are connected, it is determined whether or not temporary stop information is imposed as a traffic condition on the link connected to the node in the road data where the vehicle exists. (STEP 604).

  And when it is determined by the own vehicle road temporary stop determination means 34a that no temporary stop information is imposed in the road data where the own vehicle exists (NO in STEP 604), the intersection road temporary stop determination means 34b It is determined whether or not temporary stop information is imposed on the road data intersecting with the road data where the own vehicle exists at the intersection (STEP 605). In particular, this intersection road temporary stop determination means 34b is provided with temporary stop information among links other than the link in the road data where the own vehicle connected to the node which is the intersection to which three or more links are connected. Determine if there is something.

  When it is determined that no temporary stop information is imposed on the intersecting road data, that is, it is temporarily stopped on one of the links (excluding the link in the road data where the vehicle exists) connected to the node that is the intersection. If it is determined that no information is imposed (NO in STEP 605), the intersection road temporary stop determination means 34b detects the position information of the link on which the temporary stop information is not imposed, and the intersection of the own vehicle. Whether the link is located on the left or right side as viewed from the traveling direction is determined (STEP 606).

  And the alerting | reporting means 35 alert | reports through the display guidance part 7 or the audio | voice guidance part 9 as follows based on the positional information on the link where the temporary stop information by this intersection road temporary stop determination means 34b is not imposed (STEP607). . For example, as shown in FIG. 7, when the intersection road temporary stop determination unit 34b determines that a link for which no temporary stop information is imposed is located on the left side when viewed from the traveling direction to the intersection of the own vehicle, the notification unit 35 Although it is an example, it alert | reports "Please be careful about the vehicle from the left side."

  On the other hand, as shown in FIG. 8, when it is determined that the link on which no stop information is imposed is located on the right side when viewed from the traveling direction to the intersection of the own vehicle, the notification means 35 is “right Please pay attention to the vehicle from ". In addition, if it is determined that the link for which no pause information is imposed is located on the left and right when viewed from the direction of travel to the intersection of the own vehicle, the notification means 35 is, as an example, “Please be aware of the vehicle from the left and right. ".

  On the other hand, when it is determined that the traffic signal exists by the traffic signal determination means 33 (YES in STEP 603), it is determined by the own vehicle road temporary stop determination means 34a that temporary stop information is imposed in the road data where the own vehicle exists. If it is to be done (YES in STEP 604), since the safety is maintained by the traffic light or the stop sign at the intersection read by the intersection information reading means 32, the notification means 35 alerts the user to the attention. The process ends without leaving any unnecessary information. In addition, temporary stop information is imposed on road data that intersects the road data on which the vehicle travels at the intersection (if the stop information is imposed on all links connected to the node (the road on which the own vehicle exists) (Excluding links in the data).) (YES in STEP 605), the process ends because the intersection is secured by the stop sign as described above.

  According to the second embodiment as described above, even if no temporary stop information is imposed on all the links connected to the shared node that is the intersection, any link that does not have the temporary stop information and the own vehicle The information alerting | reporting apparatus which can alert | report the information which attracts attention suitably with respect to a user according to the relationship with the running direction of can be provided. That is, for example, when there is a link on the left side where no pause information is imposed when viewed from the traveling direction of the host vehicle at the intersection, the notification means notifies the user that “please pay attention to the vehicle from the left side”. As a result, it is possible to prevent a collision accident with a sudden jump-out vehicle at the intersection and improve driving safety.

[3. Third Embodiment]
[3.1. Constitution]
In the third embodiment, if the intersection has a good view, the angle formed by the intersection from the viewpoint that it is not necessary to notify the user of special information even if there is no temporary stop information. It is characterized by determining whether the crossing road is good or bad depending on the situation, and notifying the warning information when the view is bad. Specifically, the information notification apparatus according to the third embodiment crosses the traveling direction of the vehicle at the intersection with the control unit 3 according to the first embodiment or the second embodiment as shown in FIG. Crossing angle determination means 36 for controlling the driving of the notification means 35 by determining the angle formed by the traveling direction of the vehicle on the road to be provided.

  This intersection angle determination means 36 determines whether the angle formed by the traveling direction in the road data where the vehicle is located and the traveling direction of the vehicle on the intersecting road data is an acute angle or an obtuse angle. In the case of determining an acute angle, the notification means 35 notifies the user of warning information that alerts the user that the view of the intersection is bad. On the other hand, when it determines with an obtuse angle, the process is complete | finished without performing alerting | reporting by the alerting | reporting means 35 that the view of an intersection is good.

[3.2. Action]
Next, the operation of the third embodiment based on the above configuration will be described below with reference to FIGS. In the following description, a procedure in which processing by the intersection angle determination unit 36 is added to the information notification apparatus according to the first embodiment is described. However, the intersection angle determination unit is added to the information notification apparatus according to the second embodiment. This does not exclude the process including 36.

  As shown in FIG. 10, the processing of STEPs 1001 to 1004 is the same as that of STEPs 201 to 204 of FIG. 2 according to the first embodiment. However, in the third embodiment, in STEP 1004, the temporary stop information determination unit 34 Processing after it is determined that there is no temporary stop information is different from that of the first embodiment. Specifically, when the temporary stop information determination unit 34 determines that no temporary stop information exists at the intersection (NO in STEP 1004), the intersection angle determination unit 36 is read by the intersection information reading unit 32. At the intersection, it is determined whether the angle formed by the traveling direction of the vehicle and the traveling direction of the vehicle on the road intersecting is an acute angle or an obtuse angle (STEP 1005).

  As shown in FIG. 11, when the angle formed by the road on which the vehicle travels (the traveling direction of the vehicle) and the road intersecting at the intersection (the traveling direction of the vehicle passing through the road) is an acute angle (STEP 1005 YES) Since it cannot be said that it is easy to see a road that intersects with the running road, the notification means 35 notifies the user of information that prompts the user through the display guide section 7 and the voice guide section 9 (STEP 1006). For example, the notification means 35 emits a warning sound to the user who is driving the vehicle via the voice guidance unit 9, and “notice the vehicle jumping out from the left and right” and “the view is poor. Therefore, be careful about vehicles from the left and right. ”Is output to the display guide unit 7 as text data or output to the voice guide unit 9 as voice data.

  As shown in FIG. 12, when the angle between the traveling direction of the host vehicle and the traveling direction of the vehicle on the intersecting road is not an acute angle, that is, an obtuse angle is determined (NO in STEP 1005), the view of the intersection is good. As a result, the notification is not performed by the notification unit 35, and the process is terminated.

  Further, when it is determined that there is a traffic signal by the traffic signal determining means 33 (YES in STEP 1003), or when it is determined by the temporary stop information determining means 34 that temporary stop information exists (YES in STEP 1004), the intersection At the intersection read by the information reading means 32, safety is maintained by a traffic light or a stop sign. Therefore, the processing ends without leaving information that alerts the user by the notification means 35.

  According to the third embodiment as described above, when the angle forming the intersection is an obtuse angle, even if there is no temporary stop information as an intersection with a good view, the information that prompts the user to pay attention It is possible to provide a highly convenient information notifying device without notifying. On the other hand, when the angle forming the intersection is an acute angle, it is possible to alert the user about the traveling of other vehicles at the intersection by notifying the user of predetermined information as an intersection with a bad view. As a result, even when the view is not good at the intersection, it is possible to prevent a collision accident with a sudden jump-out vehicle and improve driving safety.

  Further, the third embodiment is not limited to the embodiment that determines whether the view of the intersection is good or bad when there is no traffic signal information and pause information at the intersection as described above. Embodiment in which the angle between the road data (traveling direction) on which the vehicle travels and the road (traveling direction) intersecting is determined to be an acute angle or an obtuse angle by the intersection angle determining means 36 regardless of whether information exists or not. Is also included.

[4. Other Embodiments]
In addition, although the information alerting | reporting apparatus which does not accompany a route search function is shown above, this invention is not limited to this, The information alerting | reporting apparatus which has a route search function is included. That is, the configuration of the present invention having the route search function is not only provided with the own vehicle position detection means 31 in the control unit 3 as shown in FIG. 13, but also the destination setting unit that receives the setting of the destination from the input unit 10. 37, route calculation means 38 for searching and calculating a guidance route from the vehicle position to the set destination, and guidance control means 39 for guiding and guiding the calculated route.

  In the following, the processing procedure of the information notification apparatus having such a route search function will be described based on the flowchart of FIG. 14 corresponding to the first embodiment.

  First, as shown in FIG. 14, based on information acquired from the vehicle information acquisition unit 13, the positioning unit 15, and the FM multiplex reception and processing unit 1, the current position information of the vehicle, that is, the own vehicle, through the own vehicle position detection means 31. The position information is detected (STEP 1401). Then, when the user sets a destination on the map database through the input unit 10, the destination setting means 37 accepts this (SEP1402).

  The route calculation means 38 calculates route candidates from the vehicle position detected by the vehicle position detection means 31 to the destination set through the destination setting means 37 (STEP 1403). Then, based on the route candidate calculated by the route calculation unit 38, the guidance control unit 39 outputs the guidance route to the display guide unit 7 and performs guidance via the display guide unit 7 and the voice guide unit 9 ( (STEP 1404).

  When guidance guidance for the guidance route is performed, the intersection information reading means 32 reads the intersection information in the latest traveling direction from the vehicle position on the route (STEP 1405), and the location corresponding to the intersection through the traffic light determination means 33. It is determined whether a traffic light is provided in (STEP 1406). The subsequent processing of STEPs 1406 to 1408 is the same as that in the first embodiment, and a description thereof will be omitted.

  In the above description, the first embodiment is described as an example. However, even when the second and third embodiments are supported, the route is calculated and searched after setting the destination. When the intersection information reading unit 32 reads the intersection in the guide route, the subsequent processing is made common to the processing of the second and third embodiments.

  Further, in the above description, the intersection information reading means 32 according to the present invention reads the nearest intersection information of the own vehicle position, but the present invention is not limited to this. It is also possible to read out all the intersection information located on the road where there is. As described above, when a plurality of intersection information is read out in advance, warning information is notified by the notification means 35 when the vehicle approaches a predetermined distance from the intersection.

The block diagram which shows the structure of the 1st Embodiment of this invention. The flowchart which shows the effect | action of the 1st Embodiment of this invention. The figure which shows the state which concerns on the 1st Embodiment of this invention and there is no pause information in an intersection. The figure which shows the state which concerns on the 1st Embodiment of this invention and there exists temporary stop information in an intersection. The block diagram which shows the structure of the 2nd Embodiment of this invention. The flowchart which shows the effect | action of the 2nd Embodiment of this invention. The figure which shows the state which concerns on the 2nd Embodiment of this invention and does not have temporary stop information on the left side seeing from the own vehicle in the intersection. The figure which shows the state which concerns on the 2nd Embodiment of this invention and does not have temporary stop information on the right side seeing from the own vehicle in the intersection. The block diagram which shows the structure of the 3rd Embodiment of this invention. The flowchart which shows the effect | action of the 3rd Embodiment of this invention. The figure which shows the state which concerns on the 3rd Embodiment of this invention and the angle formed in an intersection is an acute angle. The figure which shows the state which concerns on the 3rd Embodiment of this invention and the angle formed in an intersection is an obtuse angle. The block diagram which shows the structure of other embodiment of this invention. The flowchart which shows the effect | action of other embodiment of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... FM multiplex reception and processing part 2 ... Beacon reception and processing part 3 ... Control part (Main CPU and its peripheral circuit)
4. Dynamic RAM (DRAM)
5. Static RAM (SRAM)
6 ... ROM
7. Display guide 8 ... Video RAM (VRAM)
9 ... Voice guidance unit 10 ... Input unit (touch key control device)
DESCRIPTION OF SYMBOLS 11 ... User interface part 12 ... TV reception and processing part 13 ... Vehicle information acquisition part 14 ... Memory | storage part 15 ... Positioning part 31 ... Own vehicle position detection means 32 ... Intersection information reading means 33 ... Traffic signal determination means 34 ... Temporary stop information determination Means 34a ... own vehicle road temporary stop determination means 34b ... intersection road temporary stop determination means 35 ... notification means 36 ... intersection angle determination means 37 ... destination setting means 38 ... route calculation means 39 ... guidance control means

Claims (15)

An information notification device for notifying a user of warning information based on map data in which intersection information and vehicle stop information are stored,
Own vehicle position detecting means for detecting the own vehicle position;
Intersection information extracting means for extracting, from the map data, intersection information existing in the traveling direction on the road on which the own vehicle is detected by the own vehicle position detecting means;
Vehicle stop information determination means for determining whether vehicle stop information exists at a location where the intersection information extracted by the intersection information extraction means is located;
Informing means for informing the user of warning information when it is determined by the vehicle stop information judging means that there is no vehicle stop information;
An information notification apparatus comprising:   The information notification apparatus according to claim 1, wherein the vehicle stop information is signal information and temporary stop information.   The information notification apparatus according to claim 2, wherein the vehicle stop information determination unit determines whether traffic signal information is present at a location where the intersection information is located based on the map data.   The vehicle stop information determining means determines presence of the temporary stop information depending on whether temporary stop information is imposed on each link connected to a node that is an intersection. The information notification apparatus described. The vehicle stop information determination means has a function of detecting position information of a link for which no temporary stop information is imposed,
5. The information notification apparatus according to claim 2, wherein the notification unit notifies warning information based on position information of the link.   The information notifying apparatus according to claim 1, wherein the intersection information extracting unit extracts the nearest intersection information of the vehicle position. An information notification device for notifying a user of warning information based on map data in which intersection information and vehicle stop information are stored,
Own vehicle position detecting means for detecting the own vehicle position;
Intersection information extracting means for extracting, from the map data, intersection information existing in the traveling direction on the road on which the own vehicle is detected by the own vehicle position detecting means;
Vehicle stop information determination means for determining whether vehicle stop information exists at a location where the intersection information extracted by the intersection information extraction means is located;
The angle formed by the traveling direction of the own vehicle and the traveling direction of the vehicle on the road intersecting the road where the own vehicle is located at the intersection when the vehicle stop information determining unit determines that the vehicle stop information does not exist. Crossing angle determining means for determining whether is an acute angle;
Informing means for informing the user of warning information when the intersection angle determining means determines that the angle is acute,
An information notification apparatus comprising: A control method for an information notification device for notifying a user of warning information based on map data in which intersection information and vehicle stop information are stored,
A vehicle position detecting step for detecting the vehicle position;
An intersection information extraction step for extracting, from the map data, intersection information existing in the traveling direction on the road on which the own vehicle is detected by the own vehicle position detection step;
A vehicle stop information determination step for determining whether vehicle stop information exists at a location where the intersection information extracted by the intersection information extraction step is located;
A notification step of notifying the user of warning information when it is determined by the vehicle stop information determination step that vehicle stop information does not exist;
The control method of the information alerting | reporting apparatus characterized by performing this.   9. The information notification apparatus control method according to claim 8, wherein the vehicle stop information is traffic signal information and temporary stop information.   The method according to claim 9, wherein the vehicle stop information determination step determines whether traffic signal information is present at a location where the intersection information is located based on the map data.   The vehicle stop information determination step determines the presence of the temporary stop information depending on whether temporary stop information is imposed on each link connected to a node that is an intersection. The control method of the information alerting | reporting apparatus of description. The vehicle stop information determination step detects position information of a link where no temporary stop information is imposed,
The control method for an information notification apparatus according to claim 9, wherein the notification step notifies warning information based on position information of the link.   9. The method according to claim 8, wherein the intersection information extraction step extracts intersection information nearest to the vehicle position. A control method for an information notification device for notifying a user of warning information based on map data in which intersection information and vehicle stop information are stored,
A vehicle position detecting step for detecting the vehicle position;
An intersection information extraction step for extracting, from the map data, intersection information existing in the traveling direction on the road on which the own vehicle is detected by the own vehicle position detection step;
A vehicle stop information determination step for determining whether vehicle stop information exists at a location where the intersection information extracted by the intersection information extraction step is located;
The angle formed by the traveling direction of the own vehicle and the traveling direction of the vehicle on the road intersecting the road where the own vehicle is located at the intersection when the vehicle stop information determining step determines that no vehicle stop information exists. Crossing angle determination step for determining whether or not is an acute angle;
A notification step of notifying the user of warning information when the intersection angle determination step determines an acute angle;
The control method of the information alerting | reporting apparatus characterized by performing this. A control program for an information notification device including a computer for notifying a user of warning information based on map data in which intersection information and vehicle stop information are stored,
The program is stored on a computer.
A vehicle position detection process for detecting the vehicle position;
Intersection information extraction processing for extracting, from the map data, intersection information existing in the traveling direction on the road where the vehicle is detected detected by the vehicle position detection processing;
Vehicle stop information determination processing for determining whether vehicle stop information exists at a location where the intersection information extracted by the intersection information extraction processing is located;
When it is determined by the vehicle stop information determination process that there is no vehicle stop information, a notification process for notifying the user of warning information;
A control program for an information notification device, characterized in that

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