JP5697462B2 - MOBILE COMMUNICATION DEVICE AND METHOD FOR JUDGING TRAFFICITY - Google Patents

Description

  The present invention relates to a mobile communication device and a traffic superiority determination method, and is based on the remaining time until the next signal display (the time until the current signal display of a traffic light is changed to the next signal display). The present invention relates to a mobile communication apparatus and a traffic superiority determination method that determine traffic superiority and notify in a predetermined manner.

  In recent years, intelligent transport systems (Intelligent Transport Systems, hereinafter referred to as “ITS”) aiming to solve road traffic problems such as traffic accidents and traffic jams by networking people, roads, and vehicles with information using information communication technology. Is being researched and developed. The form of wireless communication for automobiles in the field dealing with the safe driving support system in ITS can be broadly divided into road-to-vehicle communication and vehicle-to-vehicle communication. In road-to-vehicle communication, roadside machines and vehicles communicate information, whereas in vehicle-to-vehicle communication, vehicles directly communicate information.

  Information transmitted from the roadside machine to the vehicle by road-to-vehicle communication includes intersection information and traffic signal information. As intersection information, identification information for identifying an intersection, as traffic signal information, identification information for identifying a traffic signal, current signal display information (information indicating the display color of the traffic signal), next signal display information, Information such as the time until the signal display is changed is included.

  Therefore, it is conceivable to use such intersection information and traffic signal information to determine the traffic superiority and make the user (driver or the like) confirm and to motivate the user to drive safely. There are various criteria for judging the level of traffic quality. However, signal ignorance is one of the causes of serious traffic accidents among traffic violations. It plays an important role as a standard for judging the degree.

  A driving skill diagnosis device and a driving support device disclosed in Patent Document 1 include a driving skill level determination unit that includes a driving skill level determination unit that determines a driving skill level of a driver based on driving information of transportation such as a vehicle. And a driving support device for supporting driving by the driver using the diagnosis result. And it is disclosed that the driving skill level determination means uses the frequency of signal ignorance violation as one of the criteria for diagnosing (determining) the driving skill level of the driver. Thus, the driver's driving risk (driving skill level) can be determined based on the frequency of signal ignorance violation, and by presenting this to the driver, the driver himself is informed that driving is dangerous. It is supposed to be noticed.

Japanese Patent Laid-Open No. 2003-081040

  The driving skill diagnosis device and the driving support device disclosed in the above prior art documents indicate whether or not a signal ignorance violation has been made based on information on the installation location of the traffic light, information on the light color of the traffic light, and information on the stop of the vehicle. Judgment. That is, when the vehicle reaches the traffic signal installation location (intersection), the traffic light is red, and when the vehicle is not stopped (passed the intersection), the signal ignorance violation frequency is uniformly 1 The number of times is added.

  However, it is not desirable to make a uniform determination based on the light color of the traffic light for the following reason. For example, if the color of the light is yellow, it is desirable to stop as much as possible, but the vehicle cannot stop suddenly, and it is dangerous to stop suddenly or stop at the intersection, so just before arriving at the intersection In addition, it is recommended that when the traffic light color changes from blue to yellow, it passes without stopping. Therefore, when the light color is yellow, if it is treated in the same way as red (or treated in the same way as blue), it will diagnose the driving skill that reflects the actual traffic difficulties and dangers. I can't.

  In view of the above-described problems, the present invention provides a mobile communication device and a traffic superiority determination method that determine traffic superiority based on the remaining time until the next signal display and perform notification in a predetermined manner. With the goal.

  In order to achieve the above object, a mobile communication device of the present invention includes a communication unit that is provided in a mobile unit and receives traffic signal information, and whether or not the mobile unit ignores a stop signal display or a progress impossible signal display of a traffic signal. And determine the traffic superiority on the basis of the number of times the disabling signal display is ignored and the number of times the stop signal display is ignored corresponding to the remaining time until the next signal display when the stop signal display is ignored. It is characterized by comprising a control unit and a notification unit that is controlled by the control unit and notifies the traffic quality in a predetermined manner.

  In order to achieve the above object, a mobile communication device of the present invention is provided in a mobile unit, and a communication unit that receives traffic signal information, and the mobile unit ignores a stop signal display or a progress impossible signal display of a traffic signal. The number of times of disregarding the progress impossible signal display associated with the remaining time until the next signal display when the progress impossible signal display is ignored and the time until the next signal display when the stop signal display is ignored A control unit that determines the traffic quality based on the stop signal display ignorance count associated with the remaining time, and a notification unit that is controlled by the control unit and notifies the traffic quality in a predetermined manner. It is characterized by that.

  In the mobile communication device having the above configuration, it is desirable that the traffic signal information includes at least current signal display information of the traffic signal and information indicating a remaining time until the next signal display.

  Further, in the mobile communication device having the above configuration, the remaining time until the next signal display at the ignored time point is the next signal indicated by the information included in the latest traffic signal information at the time point when the control unit determines to be ignored. From the time when the latest traffic signal information is acquired from the remaining time until the next signal display indicated by the information included in the latest traffic signal information, at the time of determination that the control unit ignores the remaining time until display It is desirable that the time is based on the time obtained by subtracting the time until the control unit determines to ignore it.

  Further, in the mobile communication device having the above-described configuration, the control unit is configured such that when the signal display of the traffic light that restricts traffic of the mobile body is a stop signal display and the mobile body passes the passage determination reference point. When it is determined that the moving body has ignored the stop signal display, the signal display of the traffic light that regulates the traffic of the moving body is a progress impossible signal display, and the mobile body has passed the passage determination reference point It is desirable to determine that the progress impossible signal display is ignored.

  Further, in the mobile communication device having the above configuration, the mobile communication device includes a current position detection unit that detects a current position of the mobile body, and the control unit includes information indicating a position of the passage determination reference point and the mobile body. It is desirable to acquire information indicating the current position of the mobile object and determine that the mobile object has passed the passage determination reference point when the current position of the mobile object straddles the passage determination reference point.

  In the mobile communication device having the above configuration, the information indicating the position of the passage determination reference point is information indicating a position coordinate of a stop line that restricts traffic of the mobile object or information indicating a position coordinate of an intersection node. It is desirable.

  Further, in the mobile communication device having the above-described configuration, the control unit ignores the stop signal display or the progress impossible signal display when the mobile body passes the passage determination reference point at a predetermined speed or less. It is desirable not to judge.

  In the mobile communication device having the above-described configuration, it is preferable that the control unit determines the traffic quality based on the number of intersections through which the mobile body has passed.

  Further, in the mobile communication device having the above-described configuration, the control unit determines a traffic superiority based on the number of determined intersections, and the number of determined intersections is determined by the control unit. The number of times that the signal display of the traffic light is determined in advance to be a stop signal display or a travel impossibility signal display when passing the determination reference point, and the moving body is determined to have passed through the passage determination reference point. It is desirable to be.

  In addition, in order to achieve the above object, there is provided a method for determining a traffic superiority of a mobile communication device provided in a mobile body, wherein the mobile body receives a traffic signal information and the mobile body cannot display or stop a traffic signal. A step of determining whether or not the signal display is ignored, the number of times the progress impossible signal display is ignored, and the number of times the stop signal display is ignored corresponding to the remaining time until the next signal display when the stop signal display is ignored And determining the level of traffic excellence based on the above.

  In addition, in order to achieve the above object, there is provided a method for determining a traffic superiority of a mobile communication device provided in a mobile body, wherein the mobile body receives a traffic signal information and the mobile body cannot display or stop a traffic signal. The step of determining whether or not the signal display is ignored, and the time when the stop signal display is ignored and the number of times the stop signal display is ignored and the remaining time until the next signal display when the progress impossible signal display is ignored And determining the traffic superiority based on the stop signal display ignorance count associated with the remaining time until the next signal display.

  According to the present invention, since the traffic superiority based on the remaining time until the next signal display is determined, the coefficient is determined according to the remaining time until the next signal display even in the same signal display. In addition, it is possible to determine the traffic superiority taking into account the difficulty and danger of actual traffic. In addition, by notifying the driver or the like of the determination result, the driver or the like can be encouraged to drive safely.

These are block diagrams which show the structure of the navigation apparatus of this invention. These are 1st flowcharts which show the flow of the process which the control part of the navigation apparatus of this invention performs. These are 2nd flowcharts which show the flow of the process which the control part of the navigation apparatus of this invention performs. These are 3rd flowcharts which show the flow of the process which the control part of the navigation apparatus of this invention performs. These are 4th flowcharts which show the flow of the process which the control part of the navigation apparatus of this invention performs. These are figures which show an example of the signal display ignorance frequency information memorize | stored in the control part of the navigation apparatus of this invention. These are figures which show an example of the coefficient table memorize | stored in the control part of the navigation apparatus of this invention. These are figures which show an example of the evaluation template memorize | stored in the control part of the navigation apparatus of this invention. These are figures which show another example of the coefficient table memorize | stored in the control part of the navigation apparatus of this invention. These are figures which show another example of the evaluation template memorize | stored in the control part of the navigation apparatus of this invention. These are figures which show the aspect which alert | reports a traffic superiority via the display part of the navigation apparatus of this invention.

  Embodiments of the present invention will be described below with reference to the drawings. However, the embodiment described below shows a navigation device which is an example of the mobile communication device of the present invention in order to embody the technical idea of the present invention, and the present invention is specified to this navigation device. And is equally applicable to other embodiments of mobile communication devices within the scope of the claims. For example, a mobile communication terminal such as a device without a navigation function or a mobile phone may be used. In the following description, a case where the navigation device is attached to an automobile is illustrated, but a pedestrian, a motorcycle, or the like may be provided (held) with the navigation device. FIG. 1 is a block diagram showing the configuration of the navigation apparatus of the present invention. The navigation device 20 includes a control unit 1, a display unit 2, an operation unit 3, a current position detection unit 4, a speed detection unit 5, a map information storage unit 6, a battery 7, a communication unit 8, and a notification unit. 9 and.

  The control unit 1 is a control unit that comprehensively controls the entire navigation device 20. The control unit 1 includes a CPU, a ROM, and a RAM (all not shown). The ROM stores a program executed by the control unit 1 and parameters and data necessary for executing the program. The CPU executes various programs stored in the ROM. The RAM temporarily stores data obtained during various processes and data obtained as a result of various processes. These CPU, RAM, ROM and the like are connected via a bus. Note that the CPU, ROM, and RAM may be partially or fully integrated on one chip. The RAM of the control unit 1 contains various information (signal display ignorance count, remaining time until the next signal display, coefficient table, evaluation template, number of passing intersections, number of determined intersections, which will be described later, for determining the traffic quality. Information etc.) is stored, but it may be provided with a storage unit for storing various information necessary for the navigation device 20 to separately determine the traffic quality.

  The display unit 2 displays a map screen (a screen displaying a map image including a route to the destination, a mark indicating the current position of the vehicle (the vehicle on which the navigation device 20 is mounted), etc.) and a menu screen. Means.

  The operation unit 3 is an input operation means for a user to input a destination or operate a menu. As the operation unit 3, various keys and buttons may be provided on the navigation device 20 body, or a touch panel function may be added to the display unit 2. Further, a remote controller for remotely operating the navigation device 20 main body as the operation unit 3 may be used as the operation unit 3.

  The current position detection unit 4 detects the current position of the vehicle on which the navigation device 20 is mounted, and includes a GPS receiver, self-contained navigation means, a position calculation CPU, and the like. The self-contained navigation means includes a steering angle sensor, an acceleration sensor, a distance sensor, a direction sensor, and the like, detects the travel distance and the traveling direction of the own vehicle, and obtains the current position based on these values. The GPS receiver receives radio waves transmitted from a plurality of GPS satellites with a GPS antenna and performs a three-dimensional positioning process or a two-dimensional positioning process to calculate the absolute position and traveling direction of the own vehicle. Here, the traveling direction is calculated based on the current vehicle position and the previous vehicle position. In addition, the detection method of the advancing direction is not specifically limited, For example, it is good also as detecting from the rotation direction of a tire, and you may detect using a direction sensor. Further, a traveling direction detection unit may be provided separately from the current position detection unit 4 to detect the traveling direction of the host vehicle.

  The speed detector 5 detects the moving speed of the host vehicle on which the navigation device 20 is mounted. The moving speed may be calculated from the output of the vehicle speed sensor or the acceleration sensor, or may be calculated from the difference between the travel distance between the GPS histories and the GPS reception time. Note that the current position detection unit 4 may detect the moving speed of the vehicle on which the navigation device 20 is mounted. When the current position detection unit 4 can detect the moving speed in addition to the current position of the host vehicle, the speed detection unit 5 can be omitted. In this case, the current position detection unit 4 includes the speed detection unit 5.

  The map information storage unit 6 stores map information to be referred to when performing route search or guidance to a destination, or that a specific point on the map information is a user's home position, company position, or the like. Has been. The map information includes network data (node data, link data). As the map information storage unit 6, a NAND flash, an SD memory card, or the like can be suitably used. The map information storage unit 6 may be built in the navigation device 20 or may be configured to be detachable from the navigation device 20. The map information may include a map image, or a map image may be drawn on the display unit 2 based on network data (node data, link data) included in the map information. In addition to storing map information in advance in the map information storage unit 6, the communication unit 8 described later receives map information from a roadside machine or the like, and the received map information is stored in the map information storage unit 6. Also good.

  Here, the map information includes network data, and the network data is composed of node data whose nodes are nodes such as roads at their inflection points and branch points, and link data whose links are links between the nodes. Is done. The node data includes node attributes such as node number, node position coordinates (latitude / longitude), road type, information indicating intersection information, intersection name, and the like, and the number of connection links and connection link number data. .

  In addition, the link data includes the link number including the node number that is the start and end points of the link, the road type (general road, expressway), distance and / or required time, the road name such as the national highway ○, the traveling direction Consists of data. In addition to the above, link data includes data such as bridges, tunnels, railroad crossings, and tollgates as link attributes.

  In the present invention, the network data includes road node data and link data. When the road on which the vehicle is currently traveling is specified, the control unit 1 detects the current position of the vehicle detected by the current position detection unit 4 (the traveling direction and the moving speed may be added), map information, Can be specified by performing a map matching process.

  The map matching process may be performed by the control unit 1 or the current position detection unit 4. That is, based on the current position detected using a GPS receiver and / or autonomous navigation means and map information, map matching processing is performed, and the current position where map matching processing has been performed is output to the control unit 1 as the current position. Also good. Alternatively, the current position detection unit 4 including the map matching process of the control unit 1 may be used.

  The battery 7 is a power supply means when the navigation device 20 is portable, and a secondary battery such as a lithium ion battery or a nickel metal hydride battery can be suitably used. Of course, as the battery 7, a primary battery such as an alkaline manganese dry battery or a manganese dry battery may be used, or a fuel cell may be used.

  The communication unit 8 transmits information to other communication devices that can communicate with the navigation device 20 (hereinafter referred to as “other communication devices”) and information transmitted from the other communication devices. A receiving unit (not shown) for receiving. The communication method is preferably non-contact communication such as wireless communication or infrared communication. Examples of other communication devices include in-vehicle devices such as navigation devices mounted on other vehicles (other mobile bodies), roadside devices, mobile communication terminals such as mobile phones possessed by pedestrians, and the like.

  Information received by the communication unit 8 from the roadside device includes intersection information and traffic signal information. In addition to the roadside unit, the communication unit 8 may receive intersection information and traffic signal information from an in-vehicle device such as a navigation device mounted on another vehicle (moving body) or a mobile communication terminal such as a mobile phone. Good. The communication unit 8 may receive intersection information and traffic signal information for each of a plurality of intersections instead of receiving single intersection information and traffic signal information. In this case, intersection information and traffic signal information for each of a plurality of intersections may be transmitted from one roadside device.

  Here, the intersection information and traffic signal information received by the communication unit 8 will be described. In the following explanation, a roadside device is installed at each intersection where a traffic signal is installed, and the information on the intersection where the roadside device is installed (intersection information) and the intersection where the roadside device is installed are installed from the roadside device. It is assumed that information including signal information (signal information) being transmitted is transmitted.

  In the intersection information, for example, the center position coordinates (latitude / longitude) of the intersection, the identification number (signal number) of the traffic signal associated with the approach direction to the intersection, the information identifying the roadside device (intersection), and the stop line The position coordinates (the position of the stop line (latitude / longitude) associated with the approach direction to the intersection), the node data of the point to be the start point and the end point (node of the intersection), and the like are included. As will be described later, the traffic signal information of the traffic signal that regulates the traffic of the host vehicle is determined based on the intersection information.

  In the traffic signal information, identification information (signal number) for identifying the traffic signal, current signal display information of the traffic signal (information indicating the display color of the traffic signal), the next signal display information, and until the signal display is changed. Information such as time is included, and these pieces of information are associated with each other. Therefore, based on the current position / traveling direction of the own vehicle and intersection information, the traffic signal number of the traffic signal that regulates the traffic of the own vehicle is identified, and the current signal display information associated with the identified traffic signal number is referred to Now you can see the current signal display of the traffic light that regulates the traffic of your vehicle. Here, the traffic signal information includes information such as the current signal display information of the traffic signal for each traffic signal. That is, since the traffic signal information is information on traffic signals installed at the intersection where the roadside device is installed, if the intersection where the roadside device is installed is a four-way, four traffic signals are installed. Therefore, the traffic signal information includes, for each of the four traffic signals, identification information (signal number) for identifying the traffic signal, current signal display information of the traffic signal (information indicating the display color of the traffic signal), next signal display information, Information such as the time until the signal display is changed is included. The traffic signal information may include signal display cycle information. The signal display cycle information is, for example, a signal display cycle in which the progress permission signal display (blue) is XX seconds, the stop signal display (yellow) is XX seconds, and the progress impossible signal display (red) is XX seconds. Or, the progress permission signal is displayed from ○ hour ○ minute to ○ hour △ minute (blue), the stop signal is displayed from ○ hour △ minute to ○ hour □ minute (yellow), the progress impossible signal is displayed from ○ hour □ minute to ○ hour impossible (red) ) Is a signal display cycle.

The notification unit 9 notifies various information. The notification method is not particularly limited as long as the content can be understood. For example, the notification method is performed by outputting a predetermined sound via a speaker (not shown). Further, it may be performed by displaying predetermined characters or images on the display unit 2 or may be performed simultaneously with sound and display. For simplification of explanation, the notification unit 9 and the display unit 2 are provided as separate components. However, when the notification method includes display of predetermined characters or images on the display unit 2, the notification unit 9 displays You may provide as a structure containing the part 2. FIG.
[First embodiment]
A first embodiment of the navigation device 20 of the present invention will be described with reference to FIG. FIG. 2 is a first flowchart showing a flow of processing executed by the control unit 1 of the navigation device 20 of the present invention.

  In step S <b> 01, the control unit 1 acquires intersection information and traffic signal information via the communication unit 8. Next, in step S02, the control unit 1 detects the current position of the host vehicle detected by the current position detection unit 4 and the current position detection unit 4 (or a travel direction detection unit when the navigation device 20 includes a travel direction detection unit). The traveling direction of the own vehicle detected by the above is acquired.

In the present embodiment, the control unit 1 acquires intersection information and traffic signal information in step S01, and acquires the current position and traveling direction of the host vehicle in step S02, but the control unit 1 acquires these information. The order to be performed may not be the order shown in the flowchart. For example, the order may be acquired at the same time, or the current position and the traveling direction of the host vehicle may be acquired first.
Moreover, the timing at which the control unit 1 acquires the current position and traveling direction of the host vehicle, intersection information, and traffic signal information is not limited to the timing. It may be acquired periodically or irregularly (for example, based on the transmission timing of another communication device), and when acquiring information multiple times regularly or irregularly, it is the newest of the acquired information Information may be used.

  In step S03, the control unit 1 determines whether or not the own vehicle has passed the passage determination reference point. If it is determined that the vehicle has passed the passage determination reference point (Y in step S03), the process proceeds to step S04, and if it is determined that the vehicle has not passed the passage determination reference point (N in step S03). ) Return to step S01.

  Passing judgment reference point is a point that will enter the intersection (region where two or more roads overlap at the intersection where multiple roads intersect) by passing, or enter the intersection by passing Specifically, examples of the passage determination reference point include a node at an intersection and a stop line that regulates traffic of the own vehicle.

  It is preferable to determine whether or not the own vehicle has passed the passage determination reference point based on whether or not the own vehicle has straddled the passage determination reference point.

  For example, when the current position coordinates of the own vehicle acquired in step S02 are substantially the same as the position coordinates of the passage determination reference point, or when the current position coordinates of the immediately preceding own vehicle are ahead in the traveling direction of the own vehicle When the determination reference point is the latest position (acquired in step S02) of the vehicle's current position, it is determined that the vehicle has straddled the passage determination reference point when the vehicle is behind the vehicle in the traveling direction ( It is determined that the passage determination reference point has passed).

  First, a case where it is determined whether or not the vehicle has passed the passage determination reference point based on the current position of the host vehicle, the traveling direction, and the node at the intersection will be described. Information indicating the position coordinates of the node at the intersection is included in the map information and / or the intersection information, and the point to be the start point or the end point of the intersection is stored as the node of the intersection. When there are multiple lanes (overtaking lane, right turn lane, oncoming lane, etc.) on the road (National Route ○ etc.), an intersection node is assigned to each lane, and to which lane the vehicle is If it is possible to determine whether the vehicle is traveling, the current position coordinates of the previous vehicle in the traveling lane indicate that the node of the intersection that was ahead in the traveling direction of the vehicle is the current position coordinates of the latest vehicle. Based on whether the vehicle is behind the traveling direction (whether the current position coordinate of the own vehicle is ahead of the position coordinate of the starting node of the intersection) It can be determined whether or not a point (intersection node) has been passed.

  On the other hand, if no intersection node is assigned to each lane, or if it is not possible to determine which lane the vehicle is traveling on, the start / end node of the intersection assigned to the road (which is the start point and which is the end point) Since it is unclear whether or not this is the case, it is referred to as “intersection start / end node”). At that time, determination is made based on whether or not the own vehicle straddles the start / end node of the intersection (whether or not the current position coordinate of the own vehicle is ahead of the position coordinate of the start / end node) Then, there is a possibility that it is determined that the signal display is ignored twice (when entering the intersection and when leaving the intersection) by ignoring the signal display once.

  Therefore, when determining whether or not the vehicle has passed the passage determination reference point based on the start / end node of the intersection, whether or not the signal display has been ignored for the start / end nodes of the intersection existing at the same intersection It is desirable not to determine (determine whether or not signal display is ignored only for the start / end nodes of the intersection that passed when entering the intersection). For example, if the start / end nodes of an intersection having the same intersection name included in the start / end nodes of the intersection are straddled continuously (within a predetermined time), the start / end nodes of the intersection straddled later are: It is not determined whether or not the signal display has been ignored (that is, it does not cross the passage determination reference point (intersection start / end node) straddled later, and does not pass the passage determination reference point (N in step S03)). judge).

  Next, a case where it is determined whether or not the vehicle has passed the passage determination reference point based on the current position of the host vehicle, the traveling direction, and the position of the stop line will be described. Information indicating the position coordinates of the stop line is included in the map information and / or the intersection information. Since the stop line is associated with at least the traveling direction (or road (link data / node data)), the current position of the vehicle (the road on which the vehicle is traveling) and the traveling direction (to the intersection) The stop line closest to the traveling direction from the current position of the own vehicle based on the approach direction is specified as the stop line that restricts the traffic of the own vehicle. Whether or not the stop line that was ahead in the direction of travel of the host vehicle in the current position coordinates of the previous vehicle is whether or not the stop line is behind in the direction of travel of the vehicle in the latest current position coordinates of the host vehicle. Determining whether or not the vehicle has passed the passage determination reference point (stop line) based on whether or not the current position coordinates are ahead of the position coordinates of the specified stop line. Can do.

  In step S04, the control unit 1 detects the traffic signal installed at the intersection corresponding to the passage determination reference point when it has passed the passage determination reference point (when it is determined that the passage determination reference point has been passed in step S03). It is determined whether or not the signal display of the traffic light that restricts the traffic of the vehicle is a stop signal display (yellow signal) or a travel impossible signal display (red signal).

  In addition, the traffic signal which regulates the traffic of the own vehicle is a traffic signal ahead of the traveling direction of the own vehicle, and can be specified based on the current position of the own vehicle, the traveling direction, intersection information and traffic signal information. Specifically, among the traffic lights set at the intersection where the center position coordinate of the intersection is the closest to the traveling direction from the current position (coordinates) of the own vehicle, there is a traffic signal associated with the traveling direction of the own vehicle. It is specified as a traffic light that regulates the traffic of the vehicle. That is, since the vehicle passes through the passage determination reference point in step S03, the center position coordinate of the intersection where the passage determination reference point (stop line) is located is closer to the host vehicle than the center position coordinates of other intersections. It is done. Therefore, based on the intersection information including the center position coordinates of the intersection closest to the current position (coordinates) of the host vehicle and the approach direction to the intersection (the traveling direction of the host vehicle), the approach direction to the intersection (the traveling direction of the host vehicle) ) Is specified. The traffic signal indicated by the traffic signal number is specified as a traffic signal that restricts the traffic of the host vehicle.

  Alternatively, if the position information of the passage determination reference point that has passed in step S03 is received via the communication unit 8, the intersection information including the position information of the passage determination reference point and the approach direction to the intersection ( Based on the traveling direction of the host vehicle, a traffic light (traffic signal that regulates traffic of the host vehicle) number corresponding to the approach direction to the intersection (the traveling direction of the host vehicle) may be specified.

  Further, the signal display determined in step S04 is a signal display at the time when the passage determination reference point is passed. This is based on the current signal display information included in the latest (last received) traffic signal information. However, the present invention is not limited to this. For example, the time is measured by a timer (not shown) from the time when the latest traffic signal information is acquired, and the passage criterion is determined from when the latest traffic signal information is acquired. The time until the point of passing the point is calculated. Then, based on the calculated time, the current signal display information included in the traffic signal information, the next signal display information, and the time until the signal display is changed, the signal display at the time of passing the passage determination reference point is displayed. You may judge.

  For example, the time from when the latest traffic signal information is acquired to when it passes through the passage determination reference point is 2 seconds, and the time until the next signal display included in the latest traffic signal information is changed is 1 second. If so, the signal display based on the next signal display information included in the latest traffic signal information is not the current signal display included in the latest traffic signal information, but the stop signal display (yellow signal) or the progress impossible signal display ( It is preferable to determine whether it is a red light).

  If the signal display is a stop signal display or a progress impossible signal display (Y in step S04), the process proceeds to step S05, and if the signal display is not a stop signal display or a progress impossible signal display (N in step S04), the process returns to step S01. If the signal display is a stop signal display (yellow), the stop signal display (yellow) is ignored. If the signal display is a progress impossible signal display (red signal), the progress impossible signal display (red signal) is ignored. is there.

  In step S05, the control unit 1 obtains the remaining time until the next signal display at the time when the passage determination reference point is passed (when it is determined that the passage determination reference point is passed in step S03). That is, when the signal display at the time of passing through the passage determination reference point is a stop signal display (yellow signal), the time until the change to the travel impossible signal display (red signal) is obtained, and the passage determination reference point is When the signal display at the time of passing is the progress impossible signal display (red signal), the time until the signal is changed to the progress permission signal display (blue signal) is acquired.

  Note that the passage determination reference point passage determination in step S03 and the signal display determination in step S04 are performed almost simultaneously, and the control unit 1 determines in step 05 that the signal display is a stop signal display or a progress impossible signal display. It is good also as acquiring the remaining time until the next signal display in.

  In step S05, it is expressed that the remaining time until the next signal display is acquired. However, the remaining time until the next signal display is the time until the next signal display included in the traffic signal information is changed, or , Based on signal display cycle information (for example, comparison of current time and signal display cycle information). Therefore, as in step S01, the acquisition timing is not limited to this timing, and may be acquired periodically or irregularly (for example, based on the transmission timing of another communication device), or regularly or irregularly. In the case where information is acquired a plurality of times, the newest information among the acquired information may be used.

  As for the remaining time until the next signal display, not only the time until the next signal display indicated by the information included in the traffic signal information is changed, but also the latest traffic signal information is acquired (received). The time from the time until the processing of step S05 may be measured and calculated based on the measured time and the time until the next signal display included in the latest traffic signal information is changed. For example, the time from the acquisition of the latest traffic signal information to the processing in step S05 is 2 seconds, and the time until the next signal display included in the latest traffic signal information is changed to 7 seconds. For example, the remaining time until the next signal display is calculated as 5 seconds.

  In step S06, for example, as shown in FIG. 6, the control unit 1 adds and stores the number of signal ignorance times, the current signal display, and the remaining time until the next signal display in association with each other. For example, when the current signal display is a non-progressible signal display and the remaining time until the next signal display is 2 seconds, 2 ≧ t (remaining time)> 1.5, so the signal of No11 Add 1 to the display ignore count and store it. In this way, by storing the number of signal ignorance times and the current signal display and the remaining time until the next signal display in association with each other, for example, in the case of No2, the remaining time until the next signal display is 2.5. It can be seen that the stop signal display is ignored three times at ˜3 seconds.

  In the present embodiment, even if the current signal display of the traffic light is a non-progressible signal display, it is associated with the remaining time until the next signal display (signal permission signal) is changed as shown in FIG. However, the present invention is not limited to this, and when the current signal display of the traffic light is a progress impossible signal display, it is automatically set to 1 without being associated with the remaining time until the progress permission signal. May be added, and the signal display ignore count may be added. That is, as shown in FIG. 6, it is not associated with the remaining time until the progress permission signal, but is stored as 5 times as the number of disregarding the progress impossible signal display (the total number of times the progress impossible signal display in FIG. 6 is ignored). ). In this case, when the total value A is calculated using a coefficient K shown in FIG. 7 described later (the remaining time is not necessary in the case of the progress impossible signal display), the total value A is 8.5 (3 × 0.1 + 5 × 0.4 + 2). × 0.6 + 5 × 1).

  In step S07, the control unit 1 determines the traffic quality. In this embodiment, the traffic superiority is calculated by calculating a total value A of each value obtained by multiplying the number of signal display ignorance times by a coefficient K determined according to the remaining time until the next signal display. Refer to the evaluation template to determine the traffic quality.

  For example, in this embodiment, when the coefficient K is determined as shown in FIG. 7, the total value A in the case shown in FIG. 6 is 8.5 (3 × 0.1 + 5 × 0.4 + 2 × 0.6 + 5 × 1). The traffic superiority is determined with reference to the evaluation template as shown in FIG. 8 for the total value A (8.5). In other words, in this embodiment, the traffic superiority is four (stars).

  FIG. 7 shows that the coefficient K is set to 1 regardless of the remaining time until the next signal display. When the current signal display of the traffic light is a stop signal display, it is handled in the same manner as the non-progressible signal display as the remaining time until the next signal display decreases (coefficient K is close to 1).

  On the other hand, the coefficient K may be determined as shown in FIG. In FIG. 9, the coefficient K decreases as the remaining time until the next signal display decreases when the current signal display of the traffic light is the inprogress signal display. This considers the case where the vehicle is started before the signal display is changed to the progress permission signal display (green light). That is, the signal display of another roadway intersecting the roadway on which the vehicle is traveling at the intersection becomes a progress impossible signal display (red light), so that the driver of the vehicle controls the traffic of the vehicle. It can be predicted that the signal display will soon be the progress permission signal display. Although it is not desirable that the signal display is based on such a prediction even though the signal display is a non-progressible signal display, it may be determined as shown in FIG. 9 because the degree of danger is somewhat low. In the present embodiment, the coefficient K is described as 0 ≦ K ≦ 1, but the range of the coefficient K is not limited to the range and can be arbitrarily determined.

  In step S08, the control unit 1 controls the notification unit 9 to perform notification in a predetermined manner based on the traffic quality. The manner of notification is not particularly limited, but examples are display on the display unit 2 and voice guidance as shown in FIG. In FIG. 11, a message (“Please keep safe driving as it is”) is displayed on the display unit 2 along with the ★ (star) mark indicating the traffic superiority, but the information indicating the traffic excellentity is the star (star). ) Mark, and the content of the message may be changed or the message may not be displayed. The timing for notifying the traffic quality is not particularly limited. Every time the engine is started, every fixed period (for example, every month), every time the number of passing intersections described later reaches a predetermined number (for example, a multiple of 100), etc. A desired timing can be set.

According to the present embodiment, since the traffic superiority based on the remaining time until the next signal display is determined, the coefficient is determined according to the remaining time until the next signal display even in the same signal display. Thus, it is possible to determine the traffic superiority taking into consideration the difficulty and danger of actual traffic. In addition, by notifying the driver or the like of the determination result, the driver or the like can be encouraged to drive safely.
[Second Embodiment]
A second embodiment of the navigation device 20 of the present invention will be described with reference to FIG. FIG. 3 is a second flowchart showing the flow of processing executed by the control unit 1 of the navigation device 20 of the present invention. Note that steps S11 to S14 of this embodiment are the same as steps S01 to S04 of the first embodiment, and steps S16 to S19 of this embodiment are the same as steps S05 to S08 of the first embodiment. Therefore, the description is omitted.

  In step S15, the control unit 1 determines whether or not the moving speed of the own vehicle is equal to or lower than a predetermined speed. If the moving speed of the own vehicle is not less than or equal to the predetermined speed (N in Step S15), the process proceeds to Step S16, and if the moving speed of the own vehicle is equal to or less than the predetermined speed (Y in Step S15), the process returns to Step S11.

  In the present embodiment, the reason why the process does not proceed to step S16 when the moving speed of the own vehicle is equal to or lower than the predetermined speed is that the own vehicle is considered to stop thereafter. For example, when the signal display changes from the progress permission signal display (blue light) to the stop signal display (yellow signal) before the intersection, the driver determines that the vehicle can stop before the stop line and steps on the brake, but before the stop line It may not be possible to stop at the stop, and the stop line may be exceeded. In such a case, although the stop line is over, it should not be determined that the signal display is ignored, so the process does not proceed to step S16.

  According to the present embodiment, when the vehicle continues to travel at an intersection at a predetermined speed or less, it is not determined that the signal display is ignored. Therefore, the signal display is a stop signal display or a progress impossible signal display. The signal display is neglected when traveling at a moving speed below a predetermined speed at a certain intersection continues for a predetermined time, or when the accumulated time of traveling at a moving speed below a predetermined speed at an intersection exceeds a predetermined time. It may be determined.

According to the present embodiment, the same effects as those of the first embodiment can be obtained. In addition, if the moving speed of the host vehicle is equal to or lower than the predetermined speed, it is not determined that the signal display is ignored even if the vehicle passes through the passage determination reference point. As a result, it is not determined that the signal display is ignored in a situation where the host vehicle is about to stop.
[Third embodiment]
A third embodiment of the navigation device 20 of the present invention will be described with reference to FIG. FIG. 4 is a third flowchart showing the flow of processing executed by the control unit 1 of the navigation device 20 of the present invention. Note that steps S21 to S23 of the present embodiment are the same as steps S01 to S03 of the first embodiment, and steps S25 to S27 of the present embodiment are the same as steps S04 to S06 of the first embodiment. Therefore, the description is omitted.

  In step S24, the control unit 1 adds and stores the number of passing intersections. The number of passing intersections is the number of intersections through which the vehicle has passed. However, in this embodiment, the number of passing intersections passes through (corresponding to) the passage determination reference point provided at the intersection (Y in step S23). The number of passing intersections is added as having passed through the intersection.

  In step S28, the control unit 1 determines the traffic quality. In this embodiment, the traffic quality is determined based on the ratio B calculated from the total value A (see step S07 in the first embodiment) and the number of passing intersections. That is, the traffic superiority is determined with reference to the evaluation template as shown in FIG. 10 for the ratio B obtained by the total value A / the number of passing intersections × 100.

  Also in the present embodiment, when the total value A is calculated with reference to FIGS. 6 and 7, the total value A is 8.5, as in the first embodiment. At this time, if the number of passing intersections stored in the control unit 1 is 100, the ratio B is 8.5% (8.5 / 100 × 100), and the traffic quality is two stars (stars). .

  In step S29, the control unit 1 controls the notification unit 9 to perform notification in a predetermined manner based on the traffic quality. In this embodiment, since there are two stars (stars), two stars (stars) may be displayed and a message such as “Let's keep driving safely” may be displayed. Note that the notification mode and the timing for notifying the traffic superiority are not particularly limited as in the first embodiment.

According to the present embodiment, the same effects as those of the first embodiment can be obtained. In addition, since the traffic quality is determined based on the ratio, it is possible to determine the traffic quality that reflects the amount of traffic experience (driver history if it is a driver).
[Fourth embodiment]
4th Embodiment of the navigation apparatus 20 of this invention is described using FIG. FIG. 5 is a fourth flowchart showing the flow of processing executed by the control unit 1 of the navigation device 20 of the present invention. Note that steps S31 to S32 of the present embodiment are the same as steps S21 to S22 of the third embodiment, and steps S37 to S38 of the present embodiment are the same as steps S26 to S27 of the third embodiment. Therefore, the description is omitted.

  In step S33, when the own vehicle passes the passage determination reference point (stop line), the signal display of the traffic light that restricts the traffic of the own vehicle when passing through the stop line cannot be displayed or displayed. It is determined in advance (before arriving at the stop line) whether or not the signal is displayed. The signal display (light color) of the traffic light at the time of passing is, for example, that the host vehicle indicates the stop line based on the distance from the current position of the host vehicle (current position that has not reached the stop line) to the stop line and the moving speed of the host vehicle. The signal display time of the traffic light at the time of passing the stop line can be specified by calculating the time until passing and referring to the signal display cycle of the traffic light included in the traffic signal information (for example, Japanese Patent Application Laid-Open No. 2008-230434). See).

  When the signal display at the time of passing through the passage determination reference point (stop line) is a stop signal display or a progress impossible signal display (Y in step S33), the process proceeds to step S34, and the signal display at the time of passing through the intersection is a stop signal display or progress. When it is not an impossible signal display (N of step S33), it returns to step S31.

  In step S34, the control unit 1 determines whether or not the own vehicle has passed the passage determination reference point (stop line). The stop line for determining whether or not it has passed in this step is a stop line for which it is determined in step S33 that the signal display when passing through the stop line is a stop signal display or a progress impossible signal display. If it is determined that the host vehicle has passed the stop line (Y in step S34), the process proceeds to step S35. If it is determined that the host vehicle has not passed the stop line (N in step S34), the process proceeds to step S31. Return.

  In step S35, the control unit 1 adds and stores the number of determined intersections. The number of determination intersections is the number of determination intersections through which the vehicle has passed (intersections in which the signal display at the time of passing the stop line is determined to be a stop signal display or a travel impossible signal display in step S33). Each time it passes a stop line (corresponding) provided at (corresponding to) the determined intersection (a stop line for which the signal display at the time of passing through the stop line is determined to be a stop signal display or a travel impossible signal display in step S33). The number of determined intersections is added as having passed the determined intersection.

  In step S36, the control unit 1 determines whether or not the signal display of the traffic light that regulates the traffic of the host vehicle is the stop signal display or the travel impossible signal display when the host vehicle actually passes the stop line. That is, for example, even if it is determined in advance in step S33 that the signal display at the time of passing through the stop line is a non-progressible signal display, the non-progressible signal display is stopped without ignoring and the signal display is allowed to proceed. When passing the stop line after changing to the signal display, only the number of determination intersections is added, and the process does not proceed to step S37.

  In step S39, the control unit 1 determines the traffic quality. In this embodiment, the traffic quality is determined based on the ratio B calculated from the total value A (see step S07 in the first embodiment) and the number of determined intersections. That is, in the method of calculating the ratio B of the third embodiment, the ratio B is calculated by setting the number of passing intersections as the number of determined intersections (total value A / number of determined intersections × 100).

  In step S40, the control unit 1 controls the notification unit 9 to perform notification in a predetermined manner based on the traffic superiority. The timing of notifying the notification mode and the traffic superiority is not particularly limited as in the first embodiment.

According to the present embodiment, the same effects as those of the first embodiment can be obtained. In addition, since the ratio is calculated based on the number of intersections to be determined, it is a progress permission signal when passing the passage determination reference point, and is not reflected in calculating the ratio B when the passage determination reference point is passed (when passing the intersection) If the progress permission signal is displayed, there is no need to stop.) Thereby, it is possible to determine the traffic superiority only on the basis of the condition whether or not the vehicle is stopped with the signal display to be stopped.
<Modification>
The coefficient K determined according to the remaining time until the next signal display is exemplified in each embodiment, but further, a plurality of coefficient tables should be determined according to the situation (type of road that is running, speed limit, etc.). It is good. For example, a national road is set to have a higher (faster) speed limit than a prefectural road, so that a vehicle traveling on a national road requires a longer time to stop the vehicle than a vehicle traveling on a prefectural road. Therefore, a prefectural road coefficient table and a national road coefficient table may be set to determine the traffic quality. Which coefficient table is to be referred to can be specified by map matching the current position of the vehicle.

  The present invention can be used for a mobile communication device that determines the traffic superiority based on the remaining time until the next signal display and performs notification in a predetermined manner.

  DESCRIPTION OF SYMBOLS 1 ... Control part, 2 ... Display part, 3 ... Operation part, 4 ... Current position detection part, 5 ... Speed detection part, 6 ... Map information storage part, 7 ... Battery, 8 ... communication unit, 9 ... notification unit, 20 ... navigation device

Claims (12)

Provided in the moving body,
A communication unit for receiving traffic signal information;
It is determined whether or not the moving body has ignored the stop signal display of the traffic light or the progress impossible signal display, and the number of times the progress impossible signal display is ignored and the remaining time until the next signal display when the stop signal display is ignored. A control unit for determining the traffic superiority based on the associated stop signal display ignorance count;
Controlled by the control unit, a notification unit for notifying the traffic quality in a predetermined manner;
A mobile communication device comprising: Provided in the moving body,
A communication unit for receiving traffic signal information;
It is determined whether or not the moving body has ignored the stop signal display or incompetence signal display of the traffic light, and the incompatibility signal display associated with the remaining time until the next signal display when the incompletion signal display is ignored A control unit that determines the traffic superiority based on the number of times of ignoring and the number of times of ignoring the stop signal display associated with the remaining time until the next signal display when the stop signal display is ignored;
Controlled by the control unit, a notification unit for notifying the traffic quality in a predetermined manner;
A mobile communication device comprising:   The mobile communication device according to claim 1 or 2, wherein the traffic signal information includes at least current signal display information of the traffic signal and information indicating a remaining time until the next signal display.   The remaining time until the next signal display at the ignored time is the remaining time until the next signal display indicated by the information included in the latest traffic signal information at the time when the control unit determines that the signal is ignored, or the control From the time when the latest traffic signal information is acquired from the remaining time until the next signal display indicated by the information included in the latest traffic signal information until the control unit determines to have ignored The mobile communication device according to any one of claims 1 to 3, wherein the time is based on a time obtained by subtracting time.   The control unit is configured such that the signal display of the traffic light that regulates the traffic of the mobile body is a stop signal display, and the mobile body ignores the stop signal display when the mobile body passes a passage determination reference point. It is determined that the signal display of the traffic signal that regulates the traffic of the moving body is a non-progressible signal display, and the non-progressible signal display is ignored when the mobile body passes the passage determination reference point. The mobile communication device according to any one of claims 1 to 4, wherein the mobile communication device is characterized in that: The mobile communication device includes a current position detection unit that detects a current position of the mobile body,
The control unit obtains information indicating a position of the passage determination reference point and information indicating a current position of the mobile body, and the mobile body moves when the current position of the mobile body crosses the passage determination reference point. 6. The mobile communication apparatus according to claim 5, wherein it is determined that the passage determination reference point has passed.   7. The information indicating the position of the passage determination reference point is information indicating a position coordinate of a stop line that restricts traffic of the moving body or information indicating a position coordinate of a node at an intersection. Mobile communication device.   6. The control unit according to claim 5, wherein when the moving body passes through the passage determination reference point at a predetermined speed or less, the control unit does not determine that the stop signal display or the progress impossible signal display is ignored. The mobile communication device according to claim 7.   9. The mobile communication device according to claim 1, wherein the control unit determines the traffic quality based on the number of intersections through which the mobile body has passed. The control unit further determines the traffic quality based on the determined number of intersections,
The determined number of intersections is determined in advance by the control unit that the signal display of the traffic light is a stop signal display or a travel impossibility signal display when the moving body passes the passage determination reference point, and The mobile communication device according to any one of claims 1 to 8, wherein the mobile communication device is a number determined that the mobile body has passed a passage determination reference point. Rutotomoni provided on the moving body, a traffic goodness determination method of a mobile communication device having a communication unit and a control unit,
The control unit receiving traffic signal information via the communication unit ;
The control unit determines whether or not the moving body disregards the stop signal display of the traffic light or the progress impossible signal display; and
The control unit determines the traffic superiority based on the number of times that the progress impossible signal display is ignored and the number of times that the stop signal display is ignored corresponding to the remaining time until the next signal display when the stop signal display is ignored. When,
A method for determining the level of traffic excellence characterized by including: Rutotomoni provided on the moving body, a traffic goodness determination method of a mobile communication device having a communication unit and a control unit,
The control unit receiving traffic signal information via the communication unit ;
The control unit determines whether or not the moving body disregards the stop signal display of the traffic light or the progress impossible signal display; and
Corresponding to the remaining time until the next signal display when ignoring the stop signal display and the number of ignoring the progress impossible signal display associated with the remaining time until the next signal display when ignoring the progress impossible signal display The control unit determines the traffic quality based on the stop signal display ignorance count; and
A method for determining the level of traffic excellence characterized by including:

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