JP2019067148A - Information control device, information control method, and program for information control device - Google Patents

Abstract

To provide an information control device capable of using data received by a mobile body of each control attribute at a receiving side by providing data generated for the mobile body of each control attribute even when mobile bodies of control attribute related to various operation control are mixed.SOLUTION: An information control device provided with or carried by a mobile body generates first communication information according to one control attribute determined by a plurality of control attributes on the basis of attribute determination conditions regarding operation control of the other mobile body existing in the circumference of the mobile body and second communication information according to an attribute different from the one control attribute (S4 to S6) to control communication frequency of at least the first communication information on the basis of the one control attribution (S7, S8).SELECTED DRAWING: Figure 8

Description

  The present application belongs to the technical fields of an information control device, an information control method, and a program for an information control device.

  Communication between mobiles is performed between mobiles, and mutual information is used for driving support. Patent Document 1 below discloses a vehicle communication device that determines priorities for a plurality of pieces of divided information, determines the number of transmissions of information having a high priority, and repeatedly transmits information having a high priority. There is.

JP, 2014-59651, A

  However, in the case where control objects related to operation control of a moving object, for example, moving objects with different automatic driving levels, vehicles driven by drivers, etc. are mixed, the technique described in the above-mentioned Patent Document 1 receives Depending on the control attribute of the mobile unit on the side, the contents of data required for automatic driving and driving support differ, and there is a problem that the received data can not be used.

  Therefore, the present application has been made in view of the above problems, and an example of the problem is generated for mobile objects of each control attribute, even if mobile objects of control attributes related to various operation control are mixed. An object of the present invention is to provide an information control apparatus which makes it possible to use data received by a mobile unit of each control attribute of a receiving side by providing data.

  In order to solve the above problems, the invention according to claim 1 is an information control apparatus mountable to a mobile unit, and an attribute determination condition regarding an attribute of operation control of another mobile unit existing around the mobile unit. Information generation means for generating first communication information according to one control attribute from a plurality of control attributes and second communication information according to a control attribute different from the one control attribute; Control means for controlling at least the communication frequency of the first communication information based on a control attribute.

  The invention according to claim 7 is an information control method in which the information control apparatus mountable to a mobile body generates communication information, wherein the information generation means is another mobile body existing around the mobile body. The first communication information corresponding to one control attribute is generated from a plurality of control attributes based on the attribute determination condition regarding the operation control attribute of the second, and the second communication information corresponding to the control attribute different from the one control attribute is generated And a control step of controlling the communication frequency of at least the first communication information based on the one control attribute.

It is a block diagram showing an example of outline composition of an information control device concerning an embodiment. It is a schematic diagram which shows an example of schematic structure of the communication system between vehicles concerning an Example. It is a schematic diagram which shows an example of driving | running | working environment. It is a schematic diagram which shows an example of driving | running | working environment. It is a schematic diagram which shows an example of driving | running | working environment. FIG. 2 is a block diagram showing an example of a schematic configuration of an inter-vehicle communication device of an autonomous driving vehicle. It is a schematic diagram which shows an example of the database of the inter-vehicle communication apparatus of FIG. It is a flowchart which shows an example of operation | movement of the vehicle-to-vehicle communication apparatus at the time of transmission which concerns on an Example. It is a schematic diagram which shows an example of the information for transmission. It is a schematic diagram which shows an example of the information for transmission. It is a schematic diagram which shows an example of the transmission pattern of the information for transmission. It is a schematic diagram which shows an example of the transmission pattern of the information for transmission. It is a schematic diagram which shows an example of the transmission pattern of the information for transmission. It is a schematic diagram which shows an example of the transmission pattern of the information for transmission. It is a flowchart which shows an example of operation | movement of the vehicle-to-vehicle communication apparatus at the time of reception which concerns on an Example. It is a flowchart which shows 2nd Example of operation | movement of a vehicle-to-vehicle communication apparatus at the time of transmission. It is a schematic diagram which shows an example of the information for transmission. It is a schematic diagram which shows an example of the information for transmission. It is a flowchart which shows 3rd Example of operation | movement of a vehicle-to-vehicle communication apparatus at the time of transmission. It is a schematic diagram which shows an example of the information for transmission. It is a schematic diagram which shows an example of the information for transmission.

  A mode for carrying out the present application will be described with reference to FIG. FIG. 1 is a block diagram showing an example of a schematic configuration of the information control apparatus according to the embodiment.

  As shown in FIG. 1, the information control device 1 is configured to include an information generation unit 1 a and a control unit 1 b.

  Examples of the information control device 1 include a navigation device mounted on a mobile body, a portable terminal device, and the like. Examples of the portable terminal device include a portable wireless telephone including a smartphone, a PDA, and the like. As an example of a moving body, a car, a bicycle, a person, a railroad, a ship, an aircraft etc. are mentioned, for example.

  The information control device 1 performs wireless communication with the information control device 1 of another mobile unit. The information control device 1 generates communication information for the mobile unit to communicate with another mobile unit. The communication information includes information on operation control of the mobile unit.

  Here, the range in which the inter-mobile communication is possible is, for example, a range of 1 km to 2 km from the mobile, but the communicable range differs depending on the radio wave intensity, the frequency, and the obstacle.

  The information on the operation control of the mobile unit is information necessary for the automatic operation of the mobile unit, and varies depending on the level of automation, the type of mobile unit (vehicle type etc.), and the control mechanism of the mobile unit. , Detailed current position of mobile (for example, relative position with feature, link ID indicating road where mobile is currently moving, etc.), detailed merging information, detailed merging scheduled time, detailed merging planned position , Road types, etc.

  In this configuration, the information generation unit 1a generates first communication information according to one control attribute from a plurality of control attributes based on the attribute determination condition regarding the attribute of the operation control of another mobile object existing around the mobile object; The second communication information corresponding to one control attribute and a different control attribute is generated.

  Here, as an example of the control attribute regarding the operation control of a mobile, each level of an automatic operation and an automatic steering defined by an organization etc. of each country can be mentioned. For example, when the mobile unit is a vehicle, automation level 0 to full automation level 4 may be mentioned. Furthermore, for example, the control attribute may be divided into two attributes of automatic driving and safety support. When the control attribute determined based on the attribute determination condition is automatic driving, for example, level 3 and level 4 may be associated with level 0 to level 2 in the case of safety support. When the control attribute determined based on the attribute determination condition is automatic driving, for example, level 2 to level 4 may be associated with level 0 and level 1 for safety support.

  As an example of determination based on the attribute determination condition, there is a case where it is determined according to environmental information.

  The present invention also relates to operation control of a relatively large number of mobile bodies among other mobile bodies existing in a range where communication between the mobile body and the mobile body is possible, which is an example of another mobile body existing around the mobile body. Control attributes are estimated. When the mobile object is a vehicle, the control attribute may be estimated based on the type of road on which the vehicle is traveling. For example, when a vehicle is traveling on a highway, there is a high probability that a large number of vehicles running a function related to automatic driving exist in the vicinity, and a function related to automatic driving is performed within a range where mobile communication can be performed. It is estimated that there are more vehicles in comparison with safety-supporting vehicles and vehicles not performing functions related to automatic driving. Further, the estimation of the control attribute may be estimated on the basis of the result of performing the inter-mobile communication. For example, the control attribute is estimated from the number of control attribute values (for example, the automatic driving level) included in the received transmission information, which are transmitted from other mobiles within a range where mobiles and mobiles can communicate with each other. Be done. In addition, it may be estimated by a camera for photographing the surroundings mounted on a moving body. For example, control attributes related to operation control of a relatively large number of moving objects are estimated based on the type of vehicle or the like shown in the camera.

  Further, as an example of the environment information, there may be mentioned information on the location where the mobile unit is located, information on the scene where the mobile unit is encountered, information on the time when the mobile unit is moving, and the like. Information indicating the type of road such as expressway, ordinary road, suburb road, road in town, mountain road, etc., information on location of moving objects, intersection information, merging point where moving objects join as an example of information on places The confluence information etc. which show are mentioned. Examples of information related to a scene include weather information, traffic jam information indicating a traffic jam situation, and the like. Information on time includes time zone information indicating a time zone such as day, night, and evening, and season information indicating a season.

  Further, the communication information includes a value for each item of mobile object information. Communication information is sent to other mobiles.

  The communication information corresponding to the determined control attribute includes communication information for automatic driving and communication information for driving in safe driving support mode when the control attribute is driving in automatic driving or safe driving support mode. is there. When the determined control attribute is for each level of automatic operation, communication information for level 4, communication information for level 3, communication information for level 2, communication information for level 1, and There is communication information for level 0.

  For example, when the determined one control attribute is automatic driving, the first communication information is communication information according to the automatic driving, and the second communication information is communication according to the driving in the safe driving support mode. Information. When the determined one control attribute is level 4, the first communication information is communication information according to level 4, and the second communication information is any one of level 0 to level 3. Is communication information according to.

  Here, as an example of the item of moving body information, the item of moving body speed, the item of ON / OFF of the light provided to the moving body, the item of ON / OFF of the wiper, the type of traveling road (highway, general road , Mountain roads, suburban roads, roads in town, etc., items of the position of the moving object by GPS (Global Positioning System), items of relative position to features (items of high precision position information), nodes on map data Operates the mobile object, the link ID items of the links that are the sections of the road connecting the two, the intersection information items (trifurcations, crossroads, link IDs of crossing roads, presence / absence of signals, position, traffic congestion etc.) The attributes of the driver (sex, age, etc.), the driver's state (alertness, sleepiness), items of automatic driving level, items of merging information, etc. can be mentioned.

  Further, as an example of the item of mobile object information, the item of the state of the lane keeping function, the item of the state of the inter-vehicle distance keeping function, the item of the tracking function state of forward moving object, peripheral moving object information (for example, Vehicle type, control attribute) etc. are mentioned.

  Further, as an example of the item of mobile object information, an item of destination information by a navigation system, an item of route information, and the like can be mentioned.

  Further, the items of merging information are divided into items of scheduled merging time, items of merging planned position, link IDs of merging roads, and items of congestion information of merging roads. As for the item of scheduled merging time, detailed scheduled merging time (for example, in microseconds), non-detailed scheduled merging time (for example, in minutes), and the like can be mentioned. With respect to the planned merging position, a detailed planned merging position (for example, several millimeters accuracy), a non-detail merging planned position (for example, in meters), and the like can be mentioned.

  The item of intersection information may also have a detailed item and a non-detail item regarding position etc. like the item of merging information. It is divided into an item of estimated arrival time at intersection, an item of intersection position, link ID of a road connected to the intersection, and an item of congestion information of a road connected to the intersection. As for the item of the intersection arrival scheduled time, detailed intersection arrival scheduled time (for example, in microseconds), non-detailed intersection arrival scheduled time (for example, in minutes), and the like can be mentioned. With respect to the intersection position, detailed intersection positions (for example, several millimeters accuracy), non-detail intersection positions (for example, in meters), and the like can be mentioned.

  Items related to automatic driving are items specific to automatic driving, not information required particularly for driving in the safe driving support mode, such as detailed position information.

  In the communication information for automatic driving, all items may be items of mobile object information for automatic driving, or items of prioritized mobile object information for automatic driving may be included.

  In the communication information for driving in the safe driving support mode, all the items may be items of moving body information for driving in the safe driving support mode, or mobile information for driving in the prioritized safe driving support mode Items may be included.

  Further, the format of the data of the communication information may be different according to the control attribute, or the item of the mobile entity information may be different according to the control attribute even if the format is the same.

  The control means 1b controls the communication frequency of at least the first communication information based on one control attribute.

  If the determined control attribute is automatic driving, it is a communication pattern in which the communication frequency of the communication information for automatic driving is higher than the communication frequency of the communication information for driving in the safe driving support mode at a predetermined time. In addition, when there is a transmission frequency of the communication frequency reference of the communication information for safety support and the communication information for automatic driving, if the determined control attribute is the automatic operation, the communication frequency for the automatic driving is higher than the communication frequency of the reference. The communication frequency of the communication information may be increased.

  If the determined control attribute is driving in the safe driving support mode, it is a communication pattern in which the communication frequency of the communication information for safety support is increased at a predetermined time higher than the communication frequency of the communication information for automatic driving . In addition, when there is a communication frequency of the communication frequency reference of the communication information for safety support and the communication information for automatic driving, the communication frequency of the communication information for safety support may be increased from the communication frequency of the reference. .

  If the determined control attribute is level 4, the communication frequency of communication information for level 4 is set to a communication pattern higher than the communication frequency of communication information for other levels, or the communication frequency When there is a reference communication frequency, it may be a communication pattern in which the communication frequency is increased more than the reference communication frequency.

  Moreover, the time interval of communication of each communication information may not be constant. The communication pattern may be defined in the order of communication of communication information for each control attribute.

  Here, the items of the communication information may be divided into required items that are required and optional items that are options. For example, the essential items include the item of the control attribute of the mobile unit, the current position of the mobile unit, the speed of the mobile unit, and the traveling direction of the mobile unit. When the determined control attribute is automatic driving, the required item may be the detailed current position (the relative position of the mobile object to the feature) instead of the current position. When the determined control attribute is driving in the safe driving support mode, the essential items may include an item of the state of the driver, position information of a nearby mobile object, an item of the traveling direction, and the like.

  The items of the communication information may include essential items regardless of the control attribute. For example, the item of the control attribute of the mobile unit and the item of the current position may be required items regardless of the control attribute.

  The communication information has an upper limit on the data size, and the items included in the communication information differ depending on the data size of each item, the priority of the item, and the like.

  As an example of a place dedicated to a mobile unit in which the mobile unit moves, there are a highway on which a vehicle travels, a road dedicated to automobiles, and the like.

  As described above, according to the operation of the information control device 1 according to the embodiment, the communication frequency of the first communication information according to one control attribute from the plurality of control attributes is controlled based on the attribute determination condition, the one control Since control is performed based on the attributes, it is possible to communicate data that can be used by the mobile entity of each control attribute on the receiving side even if the control attributes of mobile entities are mixed.

[1. Configuration and Function Overview of Inter-Vehicle Communication System and Inter-Vehicle Communication Device]
(1.1 Configuration and Function Overview of Inter-Vehicle Communication System)
Next, specific examples corresponding to the above-described embodiment will be described using the drawings. The embodiment described below is an embodiment in the case where the present invention is applied to an inter-vehicle communication system S in a vehicle which is an example of a moving object.

  FIG. 2 is a schematic view showing a configuration example of the inter-vehicle communication system S. As shown in FIG. FIGS. 3 to 5 are schematic diagrams showing an example of the traveling environment.

  As shown in FIG. 2, the inter-vehicle communication system S according to the present embodiment includes a plurality of vehicles 5 (examples of moving objects) whose control attributes are automatic driving and a plurality of vehicles 5 (movements) whose control attributes are safety assistance An example of the body) and. Each vehicle 5 is equipped with an inter-vehicle communication device 10 (an example of an information control device). Note that the inter-vehicle communication devices 10 of the respective vehicles 5 need not be exactly the same device as long as they can communicate with each other.

  The vehicle 5 which is an autonomous driving is, for example, a vehicle whose level of automation is level 3 or level 4. In the case of level 3, although all of acceleration, steering, and braking are automatically controlled, the user (driver) of the vehicle 5 performs acceleration, steering, and braking according to the situation. In the case of level 4, acceleration, steering and braking are all controlled automatically.

  The vehicle 5 which is driving in the safe driving support mode is, for example, a vehicle whose level of automation is level 0 to level 2. In the case of level 1 or level 2, the vehicle 5 is automatically controlled to either accelerate, steer or brake. In the case of level 0, the control of acceleration, steering, and braking is not performed for the user of the vehicle 5, and for example, only notification is provided for information related to safe driving support. Further, even if the vehicle 5 which is driving in the safe driving support mode is a vehicle 5 having a level 3 or level 4 automatic driving function, the situation corresponding to any level 0 to level 2 Vehicles are also included.

  Depending on whether the traveling environment in which the vehicle 5 is traveling (an example of the traveling environment) is an expressway or a general road, the number of vehicles 5 for automatic driving assumed varies. As shown in FIG. 3, for example, the road R1 is an expressway, and the road R2 is a general road. It is assumed that there are relatively many vehicles 5 executing the function of automatic driving on the road R1 of the expressway. On the road R2 of the general road, it is assumed that the number of vehicles 5 executing the function of the automatic driving is small.

  As shown in FIG. 4, the traveling environment in which the vehicle 5 is traveling approaches each other toward the intersection of the road R3 and the road R4. The vehicles 5 in the vicinity of the intersection communicate with each other including intersection information (an example of environment information).

  As shown in FIG. 5, the traveling environment in which the vehicle 5 is traveling is near the junction of the road R5 and the road R6. Communication among the vehicles 5 in the vicinity of the merging point is performed including merging information (an example of environment information).

  The inter-vehicle communication device 10 communicates with each other by radio waves of a predetermined frequency. The inter-vehicle communication device 10 of the vehicle 5 identified from among the vehicles 5 and the inter-vehicle communication device 10 of another vehicle 5 different from the vehicle 5 communicate with each other by radio waves of a predetermined frequency.

  The inter-vehicle communication device 10 mounted on the vehicle 5 for automatic driving provides information on operation control to a drive control unit (not shown) that controls acceleration, steering, and braking of the vehicle 5.

  In the case of level 1 or level 2, the inter-vehicle communication device 10 mounted on the vehicle 5 in driving in the safe driving support mode has information on driving control to the drive control unit regarding control among acceleration, steering and braking. provide. In the case of level 0, the inter-vehicle communication device 10 outputs information relating to safety support in the form of sound or display.

(1.2 Configuration and Function of Configuration of Inter-Vehicle Communication Device 10)
Next, the configuration and function of the inter-vehicle communication device 10 will be described using FIGS. 6 and 7.

  FIG. 6 is a block diagram showing a configuration example of the inter-vehicle communication device 10. As shown in FIG. FIG. 7 is a schematic view showing an example of a database of the inter-vehicle communication device of FIG.

  As shown in FIG. 6, the inter-vehicle communication device 10 functioning as a computer includes a communication unit 11, a storage unit 12, an output unit 13, an operation unit 14, a sensor information acquisition unit 15, and a control unit 16. Have.

  The communication unit 11 performs wireless communication by radio waves for communication with the inter-vehicle communication device 10 of another vehicle 5.

  The storage unit 12 is configured by, for example, a hard disk drive, a silicon disk drive, or the like. The storage unit 12 includes a map database (map DB) 12a, an item statistics database (item statistics DB) 12b, and the like.

  The map database 12a stores information necessary for navigation, such as roads, facilities, intersections, and traffic control positions. For example, as road information, position information of each link (for example, position coordinates of nodes at both ends of the link, etc.), distance of the link, road width, road name and the like can be mentioned.

  As shown in FIG. 7, the item statistics database 12b is associated with the item ID, and stores the number of times of reception of each item and the number of times of use. Each item included in transmission information (an example of communication information) received from another vehicle is counted for each item, and a value is stored in the field of the number of receptions of each item. Among the values of each item included in the received transmission information, the value of the item used for driving in the automatic driving or safe driving support mode is counted for each item, and the value is stored in the number of times of use of each item Be done.

  In the storage unit 12, driver attribute information such as the gender and age of the driver driving the own vehicle may be registered.

  The storage unit 12 stores various programs for controlling the inter-vehicle communication device 10 and the like. The various programs include an operating system, navigation, and application software for playing music. The various programs may be acquired via, for example, a network such as a wireless communication network, or may be recorded on a recording medium such as a CD or a DVD and read via a drive device. .

  The output unit 13 outputs an image, a sound, and the like. The output unit 13 is, for example, an output unit of a car navigation device, and is configured of a liquid crystal display element, an EL element, a speaker, or the like.

  The sensor information acquisition unit 15 is a sensor (internal sensor) mounted on the vehicle that measures the traveling state of the vehicle itself or the like, or a sensor that measures the external environment of the vehicle, and is an external world that acquires information necessary for automatic driving. It has a sensor (external sensor) and the like.

  For example, the internal sensor may include an acceleration, a speed, a traveling direction, an inclination, and the like of the vehicle 5. The internal sensor is a sensor that detects an angle of a steering wheel, an operation state of a brake, a gear, a wiper or the like, an indication direction of a direction indicator, an on / off state of a light, and the like. Furthermore, as the inside sensor, specifically, a gyro sensor, an acceleration sensor, a speed sensor, a wheel rotation angle sensor, a steering angle sensor, etc. may be mentioned. In addition, GNSS (Global Navigation Satellite System) positioning systems, such as GPS (Global Positioning System) which acquires the absolute position of the vehicle 5, may or may not be included in the inside sensor.

  Moreover, a radar, a traveling space sensor (LIDAR: Light Detection and Ranging, Laser Imaging Detection and Ranging), a camera for photographing the surroundings of a vehicle, etc. may be mentioned as an example of the external sensor.

  Moreover, the sensor information acquisition part 15 may have a sensor which receives the traffic information which a road traffic information communication system (VICS (trademark): Vehicle Information and Communication System) provides. The sensor information acquisition unit 15 has a timer that measures the current time.

  Moreover, the sensor information acquisition part 15 may be comprised so that an image may be acquired from the camera which image | photographs a driver | operator. Furthermore, the sensor information acquisition unit 15 may have a rainfall sensor.

  In addition, the contained sensor changes with control attributes of a vehicle. For example, the sensor information acquisition unit 15 of the vehicle 5 driving in the safe driving support mode may not have the traveling space sensor.

  The operation unit 14 is configured by, for example, an operation button or the like. When the output unit 13 is a touch switch type display panel such as a touch panel, the operation unit 14 acquires position information of the output unit 13 that the user has touched or approached.

  The control unit 16 includes, for example, a central processing unit (CPU), a read only memory (ROM), and a random access memory (RAM). The control unit 16 controls the operation of each unit of the inter-vehicle communication device 10.

[2. Operation of inter-vehicle communication device 10]
Next, the operation of the inter-vehicle communication device 10 according to the embodiment will be described with reference to the drawings.

(2.1 Example of operation of inter-vehicle communication device 10 at the time of transmission)
First, an example of the operation of the inter-vehicle communication device 10 at the time of transmission will be described using FIG. 8 to FIG.

  FIG. 8 is a flowchart showing an example of the operation of the inter-vehicle communication device 10 at the time of transmission according to the embodiment. 9 and 10 are schematic diagrams showing an example of transmission information. 11A to 11C are schematic diagrams showing an example of transmission patterns of transmission information.

  As shown in FIG. 8, the inter-vehicle communication device 10 acquires vehicle environment information (an example of environment information) (step S1). Specifically, the control unit 16 of the inter-vehicle communication device 10 acquires an image of the surroundings of the host vehicle 5 from the camera of the sensor information acquisition unit 15. Further, the control unit 16 acquires, from the current position information of the sensor information acquisition unit 15 and the map information, information on the road type of the road currently being traveled.

  Further, the control unit 16 acquires information on the current time from the timer of the sensor information acquisition unit 15. Further, the control unit 16 acquires traffic information from the sensor information acquisition unit 15. The control unit 16 acquires, from the sensor information acquisition unit 15, information such as the state of the road surface and the weather.

  Thus, the inter-vehicle communication device 10 functions as an example of an environment acquisition unit that acquires environment information related to the environment of a moving object as an attribute determination condition.

  Next, the inter-vehicle communication device 10 acquires information of the host vehicle (step S2). Specifically, from the inner sensor of the sensor information acquisition unit 15, the control unit 16 detects the acceleration, speed, traveling direction, and inclination of the vehicle 5, the angle of the steering wheel, the operation state of the brake, the gear, the wiper, and the like. Information such as the indication direction of the indicator and the light on / off state is acquired. In the case of the driver attribute, the control unit 16 may read out the user attribute information registered in the storage unit 12.

  Next, the inter-vehicle communication device 10 receives transmission information from another vehicle (step S3). Specifically, the control unit 16 receives, via the communication unit 11, transmission information from another vehicle within the reach of radio waves. When the own vehicle 5 on the receiving side receives transmission information from another vehicle, the number of receptions is stored in the item statistics database 12b for each item included in the transmission information.

  Next, the inter-vehicle communication device 10 generates transmission information according to each control attribute (step S4). For example, as shown in FIG. 9, the control unit 16 may use transmission information for automatic driving (an example of first communication information) including information necessary for automatic driving (for example, high precision position information), and As shown in 10, transmission information for driving in safe driving support mode (an example of information for second communication) including information necessary for driving in safe driving support mode (for example, driver state) is generated. .

  As shown in FIGS. 9 and 10, items may be determined in advance, or items may be determined when generating information for transmission.

  The control unit 16 may generate transmission information (an example of the first or second communication information) for each level of automatic driving. The transmission information for automatic driving may or may not include information necessary for driving in the safe driving support mode. Further, the transmission information for driving in the safe driving support mode may or may not include information required for automatic driving.

  As shown in FIGS. 9 and 10, when there are required items and optional items, the required items may be included in the transmission information regardless of the control attribute.

  The control unit 16 acquires information corresponding to each item acquired in step S2 and the like. The control unit 16 includes the identification information of the vehicle 5 in the header as the format of the transmission information, and in the order of the determined items, the item ID, the data size, the data value, and the next item ID Information for transmission is generated as data size, data value, and so on. The format of the transmission information may be different from or the same as the transmission information for automatic driving and the driving for safe driving support mode.

  As described above, the inter-vehicle communication device 10 performs the first communication information according to one control attribute from a plurality of control attributes based on the attribute determination condition regarding the attribute of the operation control of another mobile object existing around the mobile object. Functions as an example of an information generation unit that generates second communication information according to one control attribute and a different control attribute.

  Next, the inter-vehicle communication device 10 estimates control attributes of many vehicles around the vehicle (step S5). For example, when the road type is an expressway, the control unit 16 estimates that a control attribute of a relatively large number of vehicles around the host vehicle 5 is automatic driving. Also, the control unit 16 takes statistics of the value of the level item of the automatic driving of the received information for transmission, and when there are many vehicles 5 of level 3 or more, the control attribute of many vehicles around the own vehicle 5 is automatic It may be estimated as driving. In addition, the control unit 16 may estimate control attributes from the vehicle type and the like captured in the camera and calculate the control attributes of a relatively large number of vehicles around the host vehicle 5 by adding up the control attributes.

  As described above, the inter-vehicle communication device 10 estimates the control attribute related to the operation control of the moving object having a relatively large number of other moving objects existing around the moving object as the attribute determining condition. It functions as an example. The inter-vehicle communication device 10 estimates that there are a large number of other moving objects using the function of the automatic driving around the moving object, when the moving object moves in a place dedicated to the moving object, Functions as an example of estimation means for estimating the control attribute of

  Next, the inter-vehicle communication device 10 determines a control attribute to be prioritized (step S6). Specifically, the control unit 16 determines the estimated control attribute (an example of the attribute determination condition) as a priority control attribute.

  The control unit 16 may determine the control attribute to be prioritized based on the vehicle environment information (an example of the attribute determining condition). For example, if it is a junction, the control unit 16 determines that the control attribute to be prioritized is automatic driving, assuming that the automatic driving vehicle 5 needs more detailed information than the vehicle 5 driving in the safe driving support mode. It is also good.

  Thus, the inter-vehicle communication device 10 functions as an example of an attribute determination unit that determines one control attribute from a plurality of control attributes based on the attribute determination condition. The inter-vehicle communication device 10 functions as an example of an attribute determination unit that determines the control attribute estimated by the estimation unit as one control attribute. The inter-vehicle communication device 10 functions as an example of an attribute determining unit that determines one control attribute as a control attribute related to automatic driving when the moving object moves in a place dedicated to the moving object as the attribute determining condition.

  Next, the inter-vehicle communication device 10 determines the number of transmissions for each control attribute (step S7). Specifically, the control unit 16 determines the number of transmissions for each control attribute (an example of the communication frequency) in accordance with the determined control attribute.

  As shown in FIG. 11A, the number of transmissions of the transmission information At for automatic driving (for example, 2) and the number of transmissions of the transmission information for driving Sf in the safe driving support mode (for example, 1) Is determined by the control unit 16. The ratio of the number of transmissions for each control attribute (an example of the communication frequency) is 2: 1.

  As shown in FIG. 11B, the number of transmissions of the transmission information At for automatic driving (for example, 5) and the number of transmissions of the transmission information Sf for driving in the safe driving support mode (for example, 1) in a predetermined period. The controller 16 may determine the

  The ratio of the number of transmissions of the transmission information At for automatic driving to the number of transmissions of the transmission information Sf for driving in the safe driving support mode is determined as the control attribute is automatic driving based on the ratio of the predetermined reference. In this case, the number of transmissions of the transmission information At for automatic driving in the predetermined period is made larger than the ratio of the predetermined reference. When the control attribute is determined to be driving in the safe driving support mode, the number of transmissions of the transmission information Sf for driving in the safe driving support mode in the predetermined period may be larger than the ratio of the predetermined reference.

  As shown in FIG. 11C, the time interval between the transmission information At and Sf may not be constant.

  The transmission information for each control attribute may be defined in the order of transmission. For example, in the case of FIG. 11A, it may be a transmission pattern in which two pieces of transmission information At for automatic driving are subsequently transmitted, and the transmission information Sf for driving in one safe driving support mode is transmitted. The ratio of the number of transmissions for each control attribute is 2: 1.

  In the case of FIG. 11B, it may be a transmission pattern in which five pieces of transmission information At for automatic driving are subsequently transmitted, and the transmission information Sf for driving in one safe driving support mode is transmitted. The ratio of the number of transmissions for each control attribute is 5: 1.

  In the case of FIG. 11C, it may be a transmission pattern in which transmission information At for automatic driving and transmission information Sf for driving in the safe driving support mode are alternately transmitted. In this case, the ratio of the number of transmissions for each control attribute is 1: 1.

  As shown in FIGS. 11A and 11B, even if the number of transmissions of the transmission information At for automatic driving is set to be larger than the number of transmissions of the transmission information Sf for driving in the safe driving support mode. Good. Further, the number of transmissions of the transmission information At for automatic driving may be set to be larger than the number of transmissions of the transmission information Sf for driving in the safe driving support mode at a predetermined reference ratio. In the case where the mobile unit on the receiving side is performing an automatic driving function, it is necessary to cope with the ever-changing ambient conditions. Therefore, the mobile unit on the receiving side can continue to stably execute the function of the automatic driving by continuously receiving the detailed available information frequently.

  As shown in FIG. 11D, the number of transmissions for each control attribute may be the number of transmissions for each level of automatic driving.

  Thus, the inter-vehicle communication device 10 functions as an example of a control unit that controls the communication frequency of each of the first communication information and the second communication information based on one control attribute. The inter-vehicle communication device 10 functions as an example of control means for controlling the communication frequency of the first communication information to be higher than the communication frequency of the second communication information.

  Next, the inter-vehicle communication device 10 transmits transmission information (step S8). Specifically, according to the transmission pattern as shown in FIG. 11A to FIG. 11D, the control unit 16 receives, via the communication unit 11, the transmission information of each control attribute, between the vehicles of the other vehicle 5 that is the receiving side. It broadcasts from the own vehicle 5 on the transmitting side to the communication device 10. The inter-vehicle communication 10 functions as an example of a communication unit that transmits transmission information.

(An example of operation of the inter-vehicle communication device at the time of 2.2 reception)
Next, an example of the operation of the inter-vehicle communication device at the time of reception will be described using FIG.

  FIG. 12 is a flowchart showing an example of the operation of the inter-vehicle communication apparatus at the time of reception according to the embodiment.

  As shown in FIG. 12, the inter-vehicle communication device 10 acquires vehicle environment information as in step S1 (step S10).

  Next, the inter-vehicle communication device 10 acquires information of the host vehicle as in step S2 (step S11).

  Next, as in step S3, the inter-vehicle communication device 10 receives transmission information from another vehicle (step S12).

  Next, the inter-vehicle communication device 10 outputs information on the operation control of the host vehicle or outputs a notification (step S13). If the own vehicle 5 is a control attribute of automatic driving, the control unit 16 determines the current position based on the information of the necessary items among the vehicle environment information, the information of the own vehicle, and the information for transmission from other vehicles. Information on drive control as to how to control the drive of the host vehicle 5 from the traveling direction, speed, etc. is output to the drive control unit.

  When the own vehicle 5 is the control attribute of the driving in the safe driving support mode, the control unit 16 performs the driving based on the vehicle environment information, the information of the own vehicle, and the information of the necessary items among the transmission information from other vehicles. The information necessary for the notification to the hand is output to the output unit 13. For example, if the vehicle in front is approaching too close, the output unit 13 outputs a warning of approaching. The control unit 16 compares the information such as position information, speed, and traveling direction of the other information of the transmission information received from other vehicles with the position information of the own vehicle 5 and information on the traveling direction, When the vehicle is approaching at an intersection or the like, the output unit 13 outputs a warning. An example of notification to the driver by warning display by an image of a navigation device or the like provided in the own vehicle or warning guidance by a voice provided from a speaker provided in the own vehicle can be mentioned as an example.

  Next, the inter-vehicle communication device 10 increases the number of times of use for the used item among the items of the transmission information (step S14). When the own vehicle 5 is a control attribute of automatic driving and the control unit 16 controls the drive of the own vehicle 5 using detailed position information of another vehicle at the junction, based on the used item ID, In the item statistics database 12b, the count number of times of use of the item of the detailed position information is increased.

  When the own vehicle 5 is notified that another vehicle is approaching at a junction, an intersection, etc. in the control attribute of driving in the safe driving support mode, the position of the other vehicle in the transmission information received from the other vehicle The count number of the number of times of use of each item of information such as information, speed, and traveling direction is increased in the item statistics database 12b based on the used item ID.

  As described above, according to the operation according to the embodiment, the number of transmissions of the transmission information corresponding to the control attribute from the plurality of control attributes based on the attribute determination condition, and the transmission according to the attribute different from the determined attribute Since the number of times of transmission of the credit information is controlled based on the determined control attribute, even when the control attribute of the vehicle 5 receiving the transmission information is mixed, reception corresponding to each control attribute is performed. It is possible to effectively use the data received by the vehicle 5 on the other side.

  If the determined control attribute is a control attribute relating to the driving control of the other vehicle 5 on the receiving side, the number of transmissions of the transmission information according to the control attribute relating to the driving control of the other vehicle 5 is different from the control attribute If control is performed so as to be more than the number of transmissions of transmission information according to the control attribute, the frequency of transmission is required in the control attribute (for example, automatic driving, level 3, level 4) related to driving control of another vehicle 5 Thus, communication can be performed in a state more suitable for communication with another vehicle 5 of the control attribute related to driving control.

  In addition, control attributes (for example, automatic driving, level 3, level 4) related to operation control of another vehicle 5 having a relatively large number of other vehicles 5 existing around the own vehicle 5 are estimated and estimated. In the case of determining the control attribute related to the driving control, it is possible to set the number of transmissions of the transmission information according to the control attribute of the other vehicle 5 on the receiving side, which is relatively large. The transmission information received by the other vehicle 5 on the receiving side can be effectively used for the other vehicle 5 on the receiving side. That is, the vehicle 5 that transmits the transmission information can communicate efficiently.

  Further, when the own vehicle 5 on the transmitting side travels on the exclusive road like the expressway, control attributes related to the operation control of the other vehicles 5 present in the vicinity (for example, automatic operation, level 3, When it is decided to be level 4), many vehicles 5 (other vehicles 5 on the side of receiving information) are likely to execute the function of automatic driving on the exclusive road, so the function of automatic driving is executed. Information that can be used effectively can be transmitted to a large number of other vehicles 5 that are doing so.

  In addition, when the required item is selected regardless of the control attribute and transmission information including vehicle information of the required item is generated, since the required item is always included in the information to be transmitted, the control attribute of the received vehicle 5 is Information can be used effectively in either automatic driving or driving in the safe driving support mode. For example, as information required for the control attribute of the other vehicle 5 on the receiving side, whether in automatic driving or driving in the safe driving support mode, approach information of emergency vehicles such as ambulances, route information on which emergency vehicles travel, etc. Is taken as an example.

(2.3. Second embodiment of the operation of the inter-vehicle communication device 10 at the time of transmission)
Next, a second embodiment of the operation of the inter-vehicle communication device 10 at the time of transmission will be described using FIG. 13 to FIG. The operation different from that of the above embodiment will be mainly described.

  FIG. 13 is a flow chart showing a second embodiment of the operation of the inter-vehicle communication apparatus at the time of transmission. 14 and 15 are schematic diagrams showing an example of transmission information.

  As shown in FIG. 13, the inter-vehicle communication device 10 acquires vehicle environment information (step S <b> 21).

  Next, the inter-vehicle communication device 10 acquires information of the host vehicle (step S22).

  Next, the inter-vehicle communication device 10 receives transmission information from another vehicle (step S23).

  Next, the inter-vehicle communication device 10 estimates control attributes of many vehicles around the vehicle (step S24).

  Next, the inter-vehicle communication device 10 selects an item of prioritized vehicle information (an example of mobile object information) according to the estimated control attribute (step S25). For example, when the estimated control attribute is automatic driving, the control unit 16 sets the item of high-accuracy position information (detailed current position, detailed merging position if merging, etc.) necessary for automatic driving, high-accuracy time Priority is given to items such as information (detailed joining time if joining). When the control attribute of the own vehicle 5 is driving in the safe driving support mode and the own vehicle 5 does not have the traveling space sensor and can not obtain highly accurate position information, the control unit 16 performs high accuracy. An item of time information may be selected, or another item such as a control attribute of the host vehicle 5 may be selected preferentially. The control unit 16 may arbitrarily select an item within the allowable range of data capacity that can be transmitted at one time. In addition, the control unit 16 may select the mobile object information itself of the item instead of the item.

  On the other hand, when the estimated control attribute is driving in the safe driving support mode, for example, the control unit 16 preferentially selects position information, a driver attribute, a driver state, and the like which are not high precision.

  When the estimated control attribute is driving in the safe driving support mode, the control unit 16 may select not to select the item of the highly accurate position information. This is a response on the assumption that, for example, when the estimated control attribute is the safe driving support mode, there is no opportunity for other vehicles on the receiving side to use highly accurate position information. In the case where the estimated control attribute is the safe driving support mode, the preferential selection of the highly accurate position information for the transmission information is efficient reception when the data capacity that can be transmitted at one time is limited. This is contrary to the viewpoint of generating information that can be used by other vehicles on the side.

  Thus, the inter-vehicle communication device 10 functions as an example of selection means for selecting an item to be prioritized according to the estimated control attribute among a plurality of items of mobile object information including information on operation control of the mobile object. Do. The inter-vehicle communication device 10 functions as an example of selection means for selecting mobile object information of an item to be prioritized according to the movement environment information among the movement information of the plurality of items.

  Next, the inter-vehicle communication device 10 reads the statistic for the item (step S26). Specifically, the control unit 16 refers to the item statistics database 12b, reads the number of receptions (an example of a statistic) and the number of uses (an example of a statistic) of each item, and uses the number of uses per reception Calculate the frequency (an example of a statistic).

  As described above, the inter-vehicle communication device 10 functions as an example of an acquisition unit that acquires a statistic for an item used by another mobile body among items of the transmission information.

  Next, the inter-vehicle communication device 10 generates transmission information according to each control attribute (step S27). Specifically, the control unit 16 sets the priority to be high so that the item selected in step S25 is included, and determines the item to be included in the transmission information from the data size of the item.

  When control attributes of many vehicles in the vicinity are estimated to be automatic driving, for example, as shown in FIG. 14, items are determined. The item of high precision position information of the own vehicle 5 necessary for the automatic driving of another vehicle (the receiving side vehicle) and the item of the control attribute level of the own vehicle 5 are ranked high. Furthermore, items of a lane keeping function state, an inter-vehicle distance keeping function state, and a forward vehicle following function state are additionally included as optional items. The items may or may not include the items necessary for driving in the safe driving support mode.

  When control attributes of many vehicles in the vicinity are estimated to be driving in the safe driving support mode, for example, as shown in FIG. 15, an item is determined. For example, the items of the driver state of the host vehicle 5 and the items of the surrounding vehicle information (an example of the surrounding moving object information) are ranked high in the essential items. Items of destination information of the host vehicle 5 and items of route information are included in the option items. The items may or may not include the items required for automatic operation.

  As shown in FIG. 14 and FIG. 15, when there are required items and optional items, the required items may be included in the transmission information regardless of the control attribute. For example, when the approach information of an emergency vehicle such as an ambulance or the route information on which the emergency vehicle travels is acquired as peripheral vehicle information, the peripheral vehicle information is prioritized and transmission information is used regardless of the control attribute. It may be a required item. For example, as shown in FIG. 15, even if the control attribute of many vehicles in the periphery is driving in the safe driving support mode, route information of the own vehicle (vehicle on the transmitting side) or driving assistance information 1 (for example, own vehicle In the case of the state of the inter-vehicle keeping function, the item of information indicating that the function is being executed may be set as an essential item.

  Further, after determining the required items, if the item selected in step S25 is not a required item, the control unit 16 may set the item higher than the option item as the required item.

  In addition, the control unit 16 may select high-order items (for example, three high-order items) with high frequency of use for reception. The control unit 16 may determine the items to be included in the transmission information by weighting the items according to the frequency of use. Total of whether or not the item selected in step S25 (an example of the item to be prioritized according to the control attributes of many vehicles around the vehicle), whether it is an essential item, and whether the item is used frequently The control unit 16 may determine an item to be included in the transmission information by weighting with. As described above, the inter-vehicle communication device 10 may function as an example of a selection unit that selects an item to be prioritized according to the estimated control attribute and the statistic.

  Next, the control unit 16 acquires information corresponding to the item to be included in the determined transmission information. For example, in the case of the item of the detailed current position, the information of the detailed current position acquired in step S22 is acquired. In the case of the item of the driver's attribute, the control unit 16 acquires the information registered in the storage unit 12. In the case of the item of the driver's condition, the control unit 16 determines the driver's condition from the operation condition of the steering wheel, the image of the driver and the like.

  Next, the control unit 16 includes the identification information of the vehicle 5 in the header, and in the order of the determined items, the item ID, the data size, the data value, the next item ID, the data size, Information for transmission is generated as data values,.

  As described above, the inter-vehicle communication device 10 functions as an example of an information generation unit that generates transmission information to be transmitted to another mobile unit, including mobile unit information of the item selected by the selection unit. The inter-vehicle communication device 10 functions as an example of an essential item selection means for selecting an essential item which is essential regardless of the control attribute. The inter-vehicle communication device 10 functions as an example of an information generation unit that generates transmission information including mobile object information as an essential item.

  Next, as in step S6, the inter-vehicle communication device 10 determines a control attribute to be prioritized (step S28).

  Next, the inter-vehicle communication device 10 determines the number of transmissions for each control attribute as in step S7 (step S29).

  Next, the inter-vehicle communication device 10 transmits the transmission information as in step S8 (step S30).

  As described above, according to the operation according to the embodiment, the statistical amount for the used item among the items of the transmission information is acquired, and priority is given according to the statistical amount and the control attribute of the many vehicles around. When selecting an item, the vehicle information of the item having a statistically high utility value can be prioritized and information can be effectively used by the other vehicle 5 to enable efficient communication.

  Moreover, since the vehicle information of the item according to the control attribute of other vehicles 5 with relatively many numbers around can be preferentially included in the transmission information, the amount of data is limited for one transmission. Even in the inter-mobile communication, the transmission data corresponding to the control attributes of many vehicles around it enable efficient communication that can be effectively used by the receiving vehicle.

(2.4 third embodiment of the operation of the inter-vehicle communication device 10 at the time of transmission)
Next, a third embodiment of the operation of the inter-vehicle communication device 10 at the time of transmission will be described using FIG. 16 to FIG. The operation different from that of the above embodiment will be mainly described.

  FIG. 16 is a flow chart showing a third embodiment of the operation of the inter-vehicle communication apparatus at the time of transmission. FIG. 17 and FIG. 18 are schematic diagrams showing an example of transmission information.

  As shown in FIG. 16, the inter-vehicle communication device 10 acquires vehicle environment information as in step S1 (step S31).

  As described above, the inter-vehicle communication device 10 functions as an example of an acquisition unit that acquires environment information in which the moving object moves.

  Next, the inter-vehicle communication device 10 acquires information of the host vehicle as in step S2 (step S32).

  Next, as shown in step S3, the inter-vehicle communication device 10 receives transmission information from another vehicle (step S33).

  Next, as in step S5, the inter-vehicle communication device 10 estimates control attributes of many vehicles around the vehicle (step S34). Note that this step may be omitted.

  Next, the inter-vehicle communication device 10 selects an item of vehicle information to be prioritized according to the vehicle environment information (an example of the environment information) (step S35). For example, when the own vehicle 5 is in the vicinity of the junction point by comparing the current position with the map information, the control unit 16 preferentially selects the item of the junction information. When the host vehicle 5 is near an intersection, the control unit 16 may select the item of the intersection information with priority. In addition, when the host vehicle 5 is traveling on the expressway, the control unit 16 may prioritize and select items related to automatic driving, such as a detailed current position item. In addition, when the host vehicle 5 travels a suburban road with a small traffic volume due to a traffic jam, the control unit 16 may not select the item of the detailed current position with priority. When it is determined by the sensor information acquisition unit 15 that it is raining, the control unit 16 may prioritize and select the item of ON / OFF of the wiper. In addition, when it is determined that the evening is determined by the sensor information acquisition unit 15, the control unit 16 may prioritize and select the item of ON / OFF of the light of the vehicle.

  As described above, the inter-vehicle communication device 10 functions as an example of a selection unit that selects an item to be prioritized according to the environmental information among a plurality of items of mobile object information including information on operation control of the mobile. The inter-vehicle communication device 10 functions as an example of a selection unit that preferentially selects items related to automatic driving when the mobile unit moves in a place dedicated to the mobile unit.

  Next, the inter-vehicle communication device 10 reads the statistic for the item as in step S26 (step S36).

  Next, the inter-vehicle communication device 10 generates transmission information according to each control attribute (step S27). Specifically, the control unit 16 sets the priority to be high so that the item selected in step S35 is included, and determines the item to be included in the transmission information from the data size of the item.

  When the item of ON / OFF of the light of the vehicle (an example of the item prioritized according to the environment information) is selected in step S35, as shown in FIG. 17, in the optional item, ON / OFF of the light of the vehicle The item comes in the top. Note that, as shown in FIG. 17, the items of high accuracy position information and the items of control attribute level, which are essential items, are examples of the items that are essential regardless of the items that are prioritized according to the environment information.

  When the item of ON / OFF of the wiper (an example of the item prioritized according to the environment information) is selected in step S35, as shown in FIG. 18, the item of ON / OFF of the wiper is higher in the option item. come. Note that, as shown in FIG. 18, the driver's condition item and the peripheral vehicle information item, which are essential items, are an example of the items that are essential regardless of the items to be prioritized according to the environmental information.

  As shown in FIG. 17 and FIG. 18, when there are required items and optional items, the required items may be included in the transmission information. For example, as shown in FIG. 18, even when the control attribute is driving in the safe driving support mode and the driver state item is prioritized, the control attribute level item may be a required item.

  Further, as shown in FIG. 17 and FIG. 18, after determining the required items, if the item selected in step S35 is not a required item, the control unit 16 may set it as the upper item of the option item.

  In addition, the control unit 16 may select a high-order item (for example, high-order 3) with high frequency of use for reception. The control unit 16 may determine the items to be included in the transmission information by weighting the items according to the frequency of use. Whether the item is an item selected in step S35 (an example of the item to be prioritized according to the environment information), whether it is an essential item, and whether the item is frequently used is weighted in total The control unit 16 may determine an item to be included in the transmission information. As described above, the inter-vehicle communication device 10 may function as an example of a selection unit that selects an item to be prioritized according to the statistic and the environment information.

  Furthermore, when the control attribute of many vehicles around is estimated to be automatic driving in step S34, for example, as shown in FIG. 17, an item is determined. Items of high precision position information necessary for automatic operation, and items of control attribute level are ranked high. Then, in the option item, the item of ON / OFF of the light of the vehicle which is the item selected in step S35 comes to the upper rank, and the item of the lane keeping function state additionally necessary for automatic driving, the distance keeping function Items of state, items of forward vehicle following function state come in.

  When the host vehicle 5 is near the junction, the entry of the entry information may be higher in the essential items.

  When it is estimated that the control attribute of many vehicles in the surroundings is driving in the safe driving support mode in step S34, for example, as shown in FIG. 18, an item is determined. For example, in the required items, the driver's condition item and the peripheral vehicle item are ranked high. Then, in the option item, the item of ON / OFF of the wiper of the vehicle, which is the item selected in step S35, is at the upper level, and the item of destination information and the item of route information come in.

  Whether it is an item selected in step S35, whether it is an essential item, whether it is an item with a high frequency of use or not, it is weighted by the total of the control attributes of the many vehicles around the estimated. The control unit 16 may determine an item to be included in the transmission information.

  After determining the item to be included in the transmission information, as in step S27, the control unit 16 acquires information corresponding to the item to be included in the determined transmission information, and generates transmission information.

  As described above, the inter-vehicle communication device 10 generates information for transmission, which includes the moving body information of the item selected by the selecting means, and which is to be transmitted to another moving body capable of communicating between the moving body and the moving body. Function as an example. The inter-vehicle communication device 10 functions as an example of a required item selection unit that selects a required item regardless of the prioritized item according to the environment information. The inter-vehicle communication device 10 functions as an example of an information generation unit that generates transmission information including mobile object information of an essential item.

  Next, as in step S6, the inter-vehicle communication device 10 determines a control attribute to be prioritized (step S38).

  Next, the inter-vehicle communication device 10 determines the number of transmissions for each control attribute as in step S7 (step S39). In addition, the control unit 16 may control the number of transmissions for each control attribute according to the vehicle environment information. For example, when the weather is rainy according to the vehicle environment information, the control unit 16 increases the number of transmissions of the transmission information including the item of ON / OFF of the wiper. If the time zone is the evening according to the vehicle environment information, the control unit 16 increases the number of transmissions of the transmission information including the item of ON / OFF of the light of the vehicle. Further, based on the vehicle environment information, when the current position is an intersection or a junction, the control unit 16 increases the number of transmissions of the transmission information including the items of the intersection information and the junction information. When the road type is an expressway, the control unit 16 increases the number of transmissions of the transmission information having many items required for automatic driving.

  The inter-vehicle communication device 10 functions as an example of control means for controlling the communication frequency of the first communication information and the communication frequency of the second communication information according to the environment information.

  Next, the inter-vehicle communication device 10 transmits the transmission information as in step S8 (step S40).

  As described above, according to the operation according to the embodiment, the vehicle environment information on which the host vehicle 5 travels is acquired, and the number of transmissions of the transmission information according to the determined control attributes of the many surrounding vehicles, When controlling the determined number of control attributes and the number of transmissions of communication information according to different control attributes based on the vehicle environment information, the amount of data is limited to one transmission according to the vehicle environment information Even if it is transmission data of communication between mobiles, efficient communication which can be effectively used by vehicles on the receiving side can be performed.

  In addition, since the vehicle information of the item according to the vehicle environment information can be preferentially included in the transmission information, even the transmission data of the inter-mobile communication with a limited amount of data can be received by the receiving vehicle Efficient communication can be made effective.

  According to the environmental information, when selecting mandatory items regardless of prioritized items and generating transmission information including mobile object information of mandatory items, the mandatory items are always included, so in the vehicle on the receiving side, Information can be used effectively.

  Among the items of the transmission information, when acquiring the statistic for the used item and selecting the item to be prioritized according to the statistic and the vehicle environment information, the vehicle information of the item having a high utility value statistically Since effective use can be made by the receiving vehicle, efficient communication can be performed.

  In addition, when the vehicle 5 travels on the exclusive road like the expressway, if the item related to the automatic driving is selected with priority, the function of the automatic driving is executed around the exclusive road. It is possible that the communication will be efficient, which can be effectively utilized by other surrounding vehicles 5 performing the function of automatic driving.

1: Information control device 1a: Information generation means 1b: Control means 5: Vehicle (mobile body)
10: Inter-vehicle communication device (information control device)
S: Inter-vehicle communication system

Claims (8)

An information control device that can be mounted on a mobile unit,
Control information different from the first communication information according to one control attribute from a plurality of control attributes based on the attribute determination condition regarding the attribute of the operation control of the other moving object existing around the mobile object Information generation means for generating second communication information according to the attribute;
Control means for controlling at least the communication frequency of the first communication information based on the one control attribute;
An information control apparatus comprising: In the information control device according to claim 1,
The information control apparatus, wherein the control means controls the communication frequency of the first communication information to be higher than the communication frequency of the second communication information. In the information control device according to claim 1 or 2,
The apparatus further comprises estimation means for estimating control attributes related to operation control of a relatively large number of mobile bodies among the other mobile bodies existing around the mobile body as the attribute determination condition,
An information control apparatus, wherein the control attribute estimated by the estimation means is the one control attribute. In the information control device according to claim 1 or 2,
The system further comprises environment acquisition means for acquiring environment information on the environment of the mobile as the attribute determination condition,
The information control apparatus, wherein the control means controls the communication frequency of the first communication information and the communication frequency of the second communication information according to the environment information. The information control apparatus according to any one of claims 1 to 4.
The information generation unit generates the first communication information by setting the one control attribute as a control attribute related to automatic driving when the moving object moves a place dedicated to the moving object as the attribute determination condition. An information control apparatus characterized by The information control apparatus according to any one of claims 1 to 5.
An information control apparatus, further comprising: a communication unit for transmitting at least the first communication information according to the communication frequency to another mobile body capable of communication from the position of the mobile body. An information control method, wherein an information control apparatus mountable to a mobile object generates communication information,
Information generation means for generating first communication information according to one control attribute from a plurality of control attributes based on an attribute determination condition related to an attribute of operation control of another moving object existing around the mobile object; An information generation step of generating second communication information according to a control attribute and a different control attribute;
A control step of controlling at least the communication frequency of the first communication information based on the one control attribute by the control unit;
Information control method including:   A program for an information control device which causes a computer to function as the information control device according to any one of claims 1 to 6.