KR102391072B1 - Vehicle and controlling method thereof - Google Patents

Abstract

A vehicle according to an embodiment of the disclosed invention includes: a communication unit for communicating with surrounding vehicles; a storage unit provided with a storage space to store data; and a control unit configured to select a neighboring vehicle to which a request for cooperation for allocating a storage space is to be transmitted and transmit data to the selected neighboring vehicle when the remaining storage space of the storage unit is smaller than a predetermined storage space.

Description

Vehicle and its control method {VEHICLE AND CONTROLLING METHOD THEREOF}

It relates to a vehicle that transmits and receives data using V2X and a control method therefor.

V2X communication refers to a system in which the vehicle itself becomes the subject and shares information with other mobile terminals, communication networks, or vehicles, and refers to communication technology between the vehicle and all interfaces.

Specifically, the form of V2X includes vehicle-to-vehicle (V2V) communication, vehicle-to-infrastructure (V2I), in-vehicle wired/wireless networking (IVN: In-Vehicle Networking), and vehicle and communication between mobile terminals (Vehicle to Pedestrian, V2P).

One aspect provides a vehicle capable of allocating storage space to surrounding vehicles, infrastructure, mobile terminals, and the like by utilizing V2X and a control method thereof.

As a technical means for achieving the above-described technical problem, a vehicle according to an aspect includes a communication unit configured to communicate with a surrounding vehicle; a storage unit provided with a storage space to store data; and a control unit configured to select a neighboring vehicle to which a request for cooperation for allocating a storage space is to be transmitted and transmit data to the selected neighboring vehicle when the remaining storage space of the storage unit is smaller than a predetermined storage space.

Also, when the remaining storage space of the storage unit is smaller than a predetermined storage space, the control unit may select a neighboring vehicle to which the cooperation request is to be transmitted according to a progress path.

Also, when the remaining storage space of the storage unit is smaller than a predetermined storage space, the controller may select a neighboring vehicle having a similar travel route as the neighboring vehicle to which the request for cooperation is transmitted.

Also, when the remaining storage space of the storage unit is smaller than a predetermined storage space, the control unit may select a neighboring vehicle to which the request for cooperation is transmitted according to a time taken to leave the communication shadow area.

Also, when the remaining storage space of the storage unit is smaller than a predetermined storage space, the control unit selects, as a first neighboring vehicle, a neighboring vehicle having a similar travel path among neighboring vehicles within a first range, and the remaining amount of the first neighboring vehicle The first neighboring vehicle may be selected as the neighboring vehicle to transmit the cooperation request according to at least one of a storage space and a time required for the first neighboring vehicle to leave the communication shadow area.

In addition, the control unit, if at least one of a case in which the remaining storage space of the first surrounding vehicle is greater than a predetermined value and a case in which a time required for the first surrounding vehicle to leave the communication shadow area is less than a predetermined time, the second 1 A neighboring vehicle may be selected as a neighboring vehicle to which the request for cooperation is transmitted.

In addition, the control unit is, if at least one of a case in which the remaining storage space of the first surrounding vehicle is less than or equal to a predetermined value and a case in which a time taken to leave the communication shadow area of the first surrounding vehicle is less than or equal to a predetermined time, the first The neighboring vehicle may transmit a control command to the first neighboring vehicle to select a neighboring vehicle having a similar travel path to the vehicle among neighboring vehicles within the second range as the second neighboring vehicle.

In addition, the control unit, the selected surrounding vehicle stores the transmitted data, and when the surrounding vehicle enters a point not in the communication shadow area, control command so that the surrounding vehicle transmits the transmitted data to the server may be transmitted to the surrounding vehicle.

A vehicle according to another aspect includes a communication unit configured to communicate with a surrounding vehicle; a storage unit provided with a storage space to store data; and a control unit configured to check a data collection amount per second of the storage unit and determine a storage space allocable time according to the total capacity of the storage space and the storage amount of the storage space. includes

In addition, the communication unit for performing communication with the surrounding vehicle; a storage unit provided with a storage space to store data; and a control unit configured to check a data collection amount per second of the storage unit and determine a storage space allocable time according to the total capacity of the storage space and the storage amount of the storage space. may include

In addition, the control unit may check a time taken for the vehicle to leave the communication shadow area, and determine an allocable amount of storage space according to the checked time, the determined storage space allocation time, and the data collection amount per second.

A method of controlling a vehicle according to another aspect includes the steps of performing communication with a surrounding vehicle; selecting a nearby vehicle to transmit a request for cooperation for allocating a storage space when the remaining storage space of the storage unit is smaller than a predetermined storage space; and transmitting data to the selected surrounding vehicle.

In addition, the selecting of the neighboring vehicles to which the request for cooperation is to be transmitted may include selecting the neighboring vehicles to which the request for cooperation is to be transmitted according to a progress path when the remaining storage space of the storage unit is smaller than a predetermined storage space.

In addition, in the step of selecting a neighboring vehicle to which the request for cooperation is to be transmitted, when the remaining storage space of the storage unit is smaller than a predetermined storage space, a neighboring vehicle having a similar travel path may be selected as a neighboring vehicle to transmit the request for cooperation. there is.

In addition, in the step of selecting the neighboring vehicle to which the request for cooperation is to be transmitted, when the remaining storage space of the storage unit is smaller than the predetermined storage space, the neighboring vehicle to transmit the request for cooperation is selected according to the time taken to leave the communication shadow area. can be selected

In addition, the selecting of the neighboring vehicles to which the request for cooperation is transmitted may include, when the remaining storage space of the storage unit is smaller than a predetermined storage space, a neighboring vehicle having a similar travel path among neighboring vehicles within a first range as the first neighboring vehicle. selecting; and determining whether to select the first surrounding vehicle as the surrounding vehicle to transmit the cooperation request according to at least one of the remaining storage space of the first surrounding vehicle and the time it takes for the first surrounding vehicle to leave the communication shadow area step; may include.

In addition, the step of determining whether to select the first surrounding vehicle as the surrounding vehicle to which the request for cooperation is transmitted may include: when the remaining storage space of the first surrounding vehicle is greater than a predetermined value, and when the first surrounding vehicle communicates If the time taken to leave the shaded area is less than a predetermined time, at least one of the cases, the first neighboring vehicle may be selected as the neighboring vehicle to which the request for cooperation is transmitted.

In addition, in the step of selecting the neighboring vehicle to which the request for cooperation is transmitted, when the remaining storage space of the first neighboring vehicle is less than or equal to a predetermined value, the time taken to leave the communication shadow area of the first neighboring vehicle is a predetermined time If it is at least one of the following cases, transmitting a control command to the first surrounding vehicle so that the first surrounding vehicle selects, as a second surrounding vehicle, a surrounding vehicle having a similar travel path to the vehicle among surrounding vehicles within a second range; may include

In addition, the step of storing the received data by the selected surrounding vehicle; and when the surrounding vehicle enters a point other than the communication shadow area, transmitting a control command to the surrounding vehicle so that the surrounding vehicle transmits the received data to a server.

A method of controlling a vehicle according to another aspect includes the steps of performing communication with a surrounding vehicle; storing data in a storage unit; and checking the data collection amount per second for storing the data by the storage unit; and determining a storage space allocable time according to the total capacity of the storage unit and the amount of data stored in the storage unit.

In addition, checking the time it takes for the vehicle to leave the communication shadow area; and determining an allocable amount of storage space according to the confirmed time, the determined storage space allocation time, and the data collection amount per second.

According to a vehicle and a control method thereof according to an aspect, it is possible to prevent a data loss problem that may occur in a wireless communication shadow area, thereby increasing user convenience.

1 is a control block diagram of a vehicle communicating with the outside according to an embodiment.
FIG. 2 is a diagram for describing a method in which a vehicle transmits a request for cooperation to a neighboring vehicle according to an exemplary embodiment.
3 is a diagram for describing a method in which a vehicle transmits a request for cooperation to a neighboring vehicle and a method in which the neighboring vehicle transmits a request for re-cooperation, according to an exemplary embodiment.
4 is a flowchart of a method for controlling a vehicle according to an exemplary embodiment.
5 is a flowchart of a method for controlling a vehicle according to an exemplary embodiment.

Like reference numerals refer to like elements throughout. This specification does not describe all elements of the embodiments, and general content in the technical field to which the present invention pertains or content that overlaps between the embodiments is omitted. The term 'part, module, member, block' used in this specification may be implemented in software or hardware, and according to embodiments, a plurality of 'part, module, member, block' may be implemented as one component, It is also possible for one 'part, module, member, block' to include a plurality of components.

Throughout the specification, when a part is "connected" to another part, it includes not only direct connection but also indirect connection, and indirect connection includes connection through a wireless communication network. do.

Also, when a part "includes" a certain component, it means that other components may be further included, rather than excluding other components, unless otherwise stated.

Terms such as first, second, etc. are used to distinguish one component from another, and the component is not limited by the above-mentioned terms.

The singular expression includes the plural expression unless the context clearly dictates otherwise.

In each step, the identification code is used for convenience of description, and the identification code does not describe the order of each step, and each step may be performed differently from the specified order unless the specific order is clearly stated in the context. there is.

Hereinafter, the working principle and embodiments of the present invention will be described with reference to the accompanying drawings.

1 is a control block diagram of a vehicle communicating with the outside according to an embodiment.

Referring to FIG. 1 , a communication system 1 according to an embodiment may include a vehicle 100 , a surrounding vehicle 50 , a communication network 70 , a mobile terminal 30 , and a server 20 .

In a general communication system, vehicle data may be stored in the server through communication with the vehicle and the server. In addition, the data stored in the server can be transmitted back to the vehicle through communication with the vehicle and the server, and the vehicle utilizes this communication system to process the received data into operation information and operation log to provide various services to users. can do.

However, when the vehicle is in a situation in which direct communication with the server 20 is impossible, that is, the vehicle 100 is in a shaded area where wireless network access is not possible, communication with the server 20 is impossible, and thus data cannot be transmitted or received.

Therefore, when the vehicle is in such a communication shadow area, a method of temporarily storing data in a storage space in the vehicle and transmitting it again may be utilized.

However, there is a limit to the storage space in the vehicle to continuously store data, and since the vehicle is continuously located in a shaded area in an area with a poor wireless network environment, data loss inevitably occurs when the internal storage capacity is exceeded.

If the internal storage capacity is exceeded, the vehicle may erase the oldest data or not store new data, and even if the vehicle leaves the communication shadow area, data may accumulate if the data transfer rate is slow, resulting in data loss. there is.

In order to prevent such data loss, there is a method of utilizing a short-range wireless communication network such as V2X in addition to a long-distance wireless communication network such as LTE in the vehicle. Here, V2X communication refers to a system in which the vehicle itself becomes the subject and shares information with other mobile terminals, communication networks, or vehicles, and refers to communication technology between the vehicle and all interfaces.

Specifically, the types of V2X are vehicle-to-vehicle (V2V), vehicle-to-infrastructure (V2I), and vehicle-to-pedestrain (V2P) communication. ), and the vehicle 100 may transmit and receive data of the vehicle 100 through communication with the surrounding vehicle 50 .

As such, V2X communication is basically based on a communication system between the surrounding infrastructure and vehicle-to-vehicle rather than using a base station. does not exist.

Therefore, when the vehicle 100 is located in a shaded area where wireless communication with the server 20 is impossible, it is possible to secure a storage space other than the vehicle 100 by transmitting data to surrounding vehicles using this V2X communication, and Data loss can be prevented as data can be transmitted to the server using each vehicle's wireless network transmission.

Hereinafter, the vehicle 100 according to an embodiment for preventing such data loss will be described.

The vehicle 100 includes a communication unit 110 , a storage unit 120 , and a control unit 130 .

First, the communication unit 110 may transmit and receive various data related to the vehicle 100 from the outside of the vehicle 100 , for example, the surrounding vehicle 50 , the communication network 70 , and the mobile terminal 30 .

In addition, the communication unit 110 may store the received data in the storage unit 120 through the control unit 130 , and may store data to be transmitted externally in the storage unit 120 . The communication unit 110 may use the above-described V2X communication to transmit various information related to the vehicle 100 as described above.

The V2X communication used by the communication unit 110 according to an embodiment uses Dedicated Short Range Communication (DSRC) or Wireless Access in Vehicular Environment (WAVE) as a standard to communicate with the surrounding vehicle 50 through a frequency of the 5.9 GHz band. can

Also, the communication unit 110 may communicate with the surrounding vehicles 50 included within a preset range, and in this case, the preset range may mean a V2V transmission range. For example, the communication unit 110 may transmit data of the vehicle 100 to the surrounding vehicle 50 located within a range of 300m to 500m.

On the other hand, the above-described range or protocol is merely an example of a method for the disclosed communication unit 110 to communicate with the surrounding vehicle 50 and may be variously changed.

The communication unit 110 may include one or more components that enable communication with an external device, and may include, for example, at least one of a short-range communication module, a wired communication module, and a wireless communication module.

The short-distance communication module transmits signals using a wireless communication network in a short distance such as a Bluetooth module, an infrared communication module, an RFID (Radio Frequency Identification) communication module, a WLAN (Wireless Local Access Network) communication module, an NFC communication module, and a Zigbee communication module. It may include various short-distance communication modules for transmitting and receiving.

In addition to the Wi-Fi module and the Wireless broadband module, the wireless communication module includes a global system for mobile communication (GSM), a code division multiple access (CDMA), a wideband code division multiple access (WCDMA), and a universal mobile telecommunications system (UMTS). ), Time Division Multiple Access (TDMA), Long Term Evolution (LTE), etc. may include a wireless communication module supporting various wireless communication methods.

The wireless communication module may include a wireless communication interface including an antenna and a transmitter for transmitting a signal to the surrounding vehicle 50 . In addition, the wireless communication module may further include a signal conversion module that modulates the digital control signal output from the control unit 130 through the wireless communication interface into an analog radio signal according to the control of the control unit 130 to be described later.

In addition, the wireless communication module may include a wireless communication interface including an antenna for receiving a signal transmitted by the surrounding vehicle 50 and a receiver (Receiver). In this case, the wireless communication module may further include a signal conversion module for demodulating an analog wireless signal received through the wireless communication interface into a digital control signal.

On the other hand, the communication unit 110 may further include a wired communication module for transmitting the configuration and data in the vehicle 100, CAN (Controller Area Network), LIN (Local Interconnect Network), MOST (Media Oriented System Transport) communication It may include various cable communication modules such as modules.

The storage unit 120 may store various data such as data of the vehicle 100 and data received by the communication unit 110 from the surrounding vehicle 50 .

In particular, the storage unit 120 is temporarily stored when the communication unit 110 of the vehicle 100 cannot connect to the server 20, for example, when the vehicle 100 is in a communication impossible environment such as a communication shadow area. It may be a buffer that stores data.

Buffer (buffer memory) refers to a memory area that temporarily stores data while transferring data from one place to another.

The storage unit 120 may temporarily store data when the vehicle 100 is in a shadow area where wireless network access is not possible. The data temporarily stored in the storage unit 120 may be transmitted again by the communication unit 110 when the vehicle 100 enters an environment in which wireless network access is possible.

To this end, the storage unit 120 includes a cache, a read only memory (ROM), a programmable ROM (PROM), an erasable programmable ROM (EPROM), an electrically erasable programmable ROM (EEPROM), and a flash memory. It may be implemented as at least one of a non-volatile memory device or a volatile memory device such as a random access memory (RAM), a hard disk drive (HDD), or a storage medium such as a CD-ROM, but is not limited thereto.

When the remaining storage space of the storage unit 120 is smaller than a predetermined storage space, the controller 130 may select a nearby vehicle 50 to which the request for cooperation is transmitted. In this case, the cooperation request may mean a signal requesting cooperation for allocating a storage space to store data of the vehicle 100 .

Specifically, when the vehicle 100 is driven in a communication shadow area for a long period of time, the control unit 130 determines that the remaining storage space of the storage unit 120 is smaller than a predetermined storage space when the remaining storage space of the storage unit 120 is smaller than a predetermined storage space. may be judged to be insufficient to store

When the remaining storage space of the storage unit 120 is smaller than the predetermined storage space, the control unit 130 may select a neighboring vehicle 50 to which a request for cooperation is to be transmitted (A).

Specifically, the control unit 130 may select a neighboring vehicle 50 having a similar travel path to the vehicle 100 from among neighboring vehicles located within a range where V2V communication is possible. In this case, the number of selected surrounding vehicles 50 may have a predetermined value or may be a plurality.

To this end, the controller 130 may utilize the map information of the navigation, and in addition, may utilize the location information of the surrounding vehicle and the route search information of the surrounding vehicle. The location information of the surrounding vehicle and the route search information of the surrounding vehicle may be received by the communication unit 110 .

When the surrounding vehicle 50 is selected, the control unit 130 transmits the data of the vehicle 100 to the selected surrounding vehicle 50 and transmits a control command so that the data of the vehicle 100 is stored in the surrounding vehicle 150 . can do.

Meanwhile, the controller 130 may be integrated together with a storage medium capable of storing data, and may be integrated in a system on chip (SOC) built in the vehicle 100 . However, since there is not only one system-on-chip embedded in the vehicle 100, but a plurality of system-on-chips, integration is not limited to only one system-on-chip.

Hereinafter, a detailed operation of the controller 130 will be described with reference to FIGS. 2 and 3 .

2 is a view for explaining a method for a vehicle to transmit a request for cooperation to a neighboring vehicle according to an embodiment, and FIG. 3 is a method for a vehicle to transmit a request for cooperation to a neighboring vehicle according to an embodiment It is a diagram for explaining a method of transmitting a request for cooperation.

Referring to FIG. 2 , the vehicle 100 according to an embodiment selects a nearby vehicle 50 to transmit a cooperation request signal when the vehicle 100 is in a communication impossible situation such as being located in a communication shadow area. can (A). In this regard, a detailed selection method will be described later.

Specifically, the control unit 130 may select the surrounding vehicle 50 to request data storage cooperation according to at least one of the traveling path of the vehicle 100, the storage space of the surrounding vehicle, and the time when the surrounding vehicle leaves the shaded area. (A).

The vehicle 100 may transmit the cooperation request signals 201, 202, and 203 to the selected surrounding vehicles VT, VT', and VT'', in which case V2V communication is utilized.

The neighboring vehicles VT, VT', VT'' that have received the cooperation request signals 201, 202, and 203 from the vehicle 100 transmit the cooperation enable signals 204 and 206 or the cooperation impossible signal 205 to the vehicle 100. can be sent to

The surrounding vehicles (VT, VT', VT'') consider the internal storage space allocable amount (Sa) of the own vehicle, and if there is a spare in the storage space allocable amount (Sa), a cooperation enable signal is transmitted to the vehicle 100. can In addition, the neighboring vehicles VT, VT', and VT'' may transmit a non-cooperation signal to the vehicle 100 when it is determined that cooperation is impossible.

Specifically, the vehicle 100 may transmit a cooperation request signal including a required amount of data, and the surrounding vehicles (VT, VT', VT'') that have received this cooperation request signal are the data collection amount per second (Dsec, [MB/s]), the total amount of storage space in the vehicle, the current storage amount, etc. can determine the amount of storage space allocable time (Tsec) compared to the collection amount.

The surrounding vehicles VT, VT', and VT'' may determine the storage space allocable time Tsec by Equation 1, and Equation 1 is as follows.

[Equation 1]

In this case, Tsec is the available storage space allocation time, Stotal is the total amount of storage space, and Stored is the current storage amount. Dsec means the amount of data collected per second.

When the available storage space allocation time is determined, the surrounding vehicles VT, VT', VT'' may determine a communication coverage area entry point, and determine a time (Texit) to leave the shaded area therefrom. In this case, the communication available area entry point means a point out of the communication shadow area, and the time out of the shaded area (Texit) means a time during which entry into the communication available area is possible.

The surrounding vehicles (VT, VT', VT'') that have received the cooperation request signal from the vehicle 100 can check the time (Texit) to leave the shaded area based on navigation information such as the driving route, and the time to leave the shaded area (Texit) and the above-described storage space allocable time (Tsec) may be compared to determine whether to transmit a non-cooperation signal or a cooperation enable signal.

Specifically, if the time to leave the shaded area (Texit) is longer than the storage space allocable time (Tsec), it means that there is no storage space to be allocated before leaving the shaded area, so in this case the surrounding vehicles (VT, VT', VT'') may transmit a non-cooperation signal indicating that data of the vehicle 100 cannot be stored.

On the other hand, if the time to leave the shaded area (Texit) is shorter than the available storage space allocable time (Tsec), the surrounding vehicles (VT, VT', VT'') may leave the shaded area before all the storage space is allocated. Therefore, it is possible to transmit a cooperation enable signal to the vehicle 100 .

At this time, the surrounding vehicles VT, VT', VT'' may determine the available storage space allocation amount Sa according to the time to leave the shaded area (Texit) and the available storage space allocation time (Tsec), specifically, use 2

[Equation 2]

In this case, Sa means the amount of storage space allocable, Tsec is the available storage space time, Texit is the time to leave the shaded area, and Dsec is the amount of data collected per second.

The storage space allocable time Tsec determined by Equation 2 may be transmitted to the vehicle 100 together with the cooperation enable signal.

Thereafter, the vehicle 100 transmits data packets 207, 208) can be transmitted.

The surrounding vehicles VT and VT'' that have received the data packets 207 and 208 from the vehicle 100 may later transmit the data of the vehicle 100 to the server 20 when the communication is possible.

In another embodiment, when the vehicle 100 is in a communication impossible situation such as being located in a communication shadow area, the vehicle 100 may broadcast a cooperation request signal using V2V communication.

In this case, the vehicle 100 may transmit a cooperation request signal to all vehicles V1 , V2 , and V3 within the V2V communication range to which the vehicle belongs. The vehicles V1 , V2 , and V3 that have received the cooperation request signal from the vehicle 100 may transmit a cooperation enable signal or a cooperation impossible signal to the vehicle 100 .

Determination of transmission of a cooperation enable signal or non-cooperation signal is the same as in the above-described embodiment, and the vehicle 100 responds to the cooperation request signal of the vehicle 100 and transmits a cooperation enable signal to the vehicle 100 among surrounding vehicles. It is possible to select a nearby vehicle 50 to request cooperation of data allocation (A).

After selecting the surrounding vehicle, the vehicle 100 transmits the data packet of the vehicle 100 to the selected surrounding vehicle 50, and when the selected surrounding vehicle 50 becomes available for communication later, the A control command may be transmitted to transmit data to the server 20 .

Referring to FIG. 3 , when the vehicle 100 according to an embodiment is located in the communication shadow area range 230 , the surrounding vehicles 50a within the preset range, that is, the first range 200 in which direct V2V communication is possible, Among 50b and 50c), a neighboring vehicle having a similar driving path may be selected.

For example, the driving path of the vehicle 100 is the driving path of the destination 300, the driving path of the surrounding vehicle 50a is the driving path of the destination 310, and the driving path of the surrounding vehicle 50b is the destination ( 320), and when the driving path of the surrounding vehicle 50c is the driving path of the destination 330, the vehicle 100 is a neighboring vehicle having a driving path most similar to the driving path of the vehicle 100. A surrounding vehicle 50a having a driving path may be selected as the first surrounding vehicle.

In this case, navigation information including destination information and driving route information of the vehicle 100 and the surrounding vehicle 50 may be transmitted and received and utilized.

The control unit 130 of the vehicle 100 may receive storage space information of the first surrounding vehicle 50a from the first surrounding vehicle 50a, and may receive the storage space information of the first surrounding vehicle 50a and the first surrounding vehicle 50a. It may be determined whether to allocate the data of the vehicle 100 to the first surrounding vehicle 50a based on at least one of the time when the 50a leaves the shaded area.

Specifically, when the free storage space of the first surrounding vehicle 50a is larger than the predetermined storage space X1, the controller 130 determines to allocate the data of the vehicle 100 to the first surrounding vehicle 50a. can

For example, when the predetermined space is 100 Mbytes, the control unit 130 allocates data of the vehicle 100 to the first surrounding vehicle 50a when the free storage space of the first surrounding vehicle 50a is greater than 100 Mbytes. it can be decided that

Also, when the time to leave the shadow area of the first surrounding vehicle 50a is shorter than the predetermined time T1, the controller 130 determines to allocate the data of the vehicle 100 to the first surrounding vehicle 50a. can

For example, when the predetermined time is 10 minutes, when the time to leave the shadow area of the first surrounding vehicle 50a is shorter than 10 minutes, the controller 130 sends the vehicle 100 to the first surrounding vehicle 50a. You can decide to allocate data.

In this case, the time to leave the shaded area means the time required to travel to a point not in the shaded area, and the point not in the shaded area may be identified using map data.

When it is determined to allocate the data of the vehicle 100 to the first surrounding vehicle 50a, the controller 130 may transmit the data of the vehicle 100 to the first surrounding vehicle 50a. The controller 130 may transmit a control command to the first surrounding vehicle 50a so that data of the vehicle 100 is stored in the storage space of the first surrounding vehicle 50a.

Thereafter, the first surrounding vehicle 50a receiving the data allocation command of the vehicle 100 from the vehicle 100 may store the data of the vehicle 100 in a storage space, and when the communication is enabled, the vehicle 100 ) may be transmitted to the server 20 .

As another example, when the storage space of the first surrounding vehicle 50a is smaller than the predetermined space X1 or the first surrounding vehicle 50a does not leave the shaded area within the predetermined time T1, the controller 130 may issue a control command so that the first surrounding vehicle 50a selects a second surrounding vehicle to which the request for cooperation is transmitted within the second range 210 .

In this case, the second surrounding 210 may mean a range in which the first surrounding vehicle 50a can perform direct V2V communication.

According to the control command of the controller 130 , the first surrounding vehicle 50a selects, as the second surrounding vehicle 52 , a surrounding vehicle having a similar driving path to the vehicle 100 among surrounding vehicles within the second range 210 . can

The control unit 130 determines whether the free storage space of the second surrounding vehicle 52 selected by the first surrounding vehicle 50a is larger than the predetermined storage space X2 and the time to leave the shadow area of the second surrounding vehicle 52 . issue a control command to the first surrounding vehicle 50a to determine whether to allocate the data of the vehicle 100 to the second surrounding vehicle 52 according to at least one of whether it is shorter than this predetermined time T2 can do.

At this time, the predetermined storage space X2 serving as a comparison standard of the free storage space of the second surrounding vehicle 52 is a predetermined storage space ( It may have the same value as X1), and may have a different value.

Similarly, the predetermined time T2, which is a comparison criterion for time out of the shaded area of the second surrounding vehicle 52, is a predetermined time used as a comparison criterion for the time of leaving the shaded area of the first surrounding vehicle 50a described above. It may have the same value as (T1) or may have a different value.

Similarly to the first surrounding vehicle 50a, when the free storage space of the second surrounding vehicle 52 is larger than the predetermined storage space X2, the controller 130 sends the vehicle 100 to the second surrounding vehicle 52. It can be decided by allocating the data of

Also, when the time to leave the shadow area of the second surrounding vehicle 52 is shorter than the predetermined time T2 , the controller 130 determines to allocate the data of the vehicle 100 to the second surrounding vehicle 52 . can

If it is determined to allocate the data of the vehicle 100 to the second surrounding vehicle 52 , the control unit 130 transmits the data of the vehicle 100 to the server 20 when the second surrounding vehicle 52 is in a communicable state. It is possible to transmit a control command to the second surrounding vehicle 52 to transmit to.

As another example, when the storage space of the second surrounding vehicle 52 is smaller than the predetermined storage space X2 or the time to leave the shadow area of the second surrounding vehicle 52 is longer than the predetermined time T2, the controller 130 may give a control command so that the second surrounding vehicle 52 selects a third surrounding vehicle having a similar travel path to the vehicle 100 within the third range 220 . In the following process, since the above-described process is repeated, a description thereof will be omitted.

As such, as the target vehicle to which the request for cooperation is transmitted changes, faster and more efficient communication may be possible.

4 is a flowchart of a method for controlling a vehicle according to an exemplary embodiment.

Referring to FIG. 4 , the vehicle 100 according to an exemplary embodiment may select a first surrounding vehicle having a similar travel path to the vehicle 100 within a first range ( 401 ). In this case, the first range may mean a local range in which the vehicle 100 can perform direct V2V communication.

Thereafter, the vehicle 100 may determine whether the remaining storage space of the first surrounding vehicle exceeds the predetermined storage space X1 ( 402 ), and the remaining storage space of the first surrounding vehicle is the predetermined storage space ( 402 ). If greater than X1), it may be determined whether the time to leave the shadow area of the first surrounding vehicle is less than a predetermined time T1 ( 403 ). In this case, the time it takes for the first surrounding vehicle to leave the shadow area may mean the time it takes for the first surrounding vehicle to leave the shadow area.

When the time for leaving the shadow area of the first surrounding vehicle is less than the predetermined time T1 , the vehicle 100 may store data of the vehicle 100 in the first surrounding vehicle ( 404 ). Specifically, the vehicle 100 may request allocation of a storage space for storing data of the vehicle 100 to the first surrounding vehicle.

Thereafter, the vehicle 100 may transmit a control command to transmit the stored data of the vehicle 100 to the server 20 when the first surrounding vehicle is in a communicable state, and accordingly, the first surrounding vehicle may be in a communicable state When the data of the vehicle 100 may be transmitted to the server 20 (405).

On the other hand, when the remaining storage space of the first surrounding vehicle and the time to leave the shaded area do not satisfy the above-described predetermined conditions (NO in steps 402 and 403), the vehicle 100 determines that the first surrounding vehicle is within the second range. In operation 411 , a control command may be given to the first neighboring vehicle to select a second neighboring vehicle having a similar travel path to the vehicle 100 .

Thereafter, the vehicle 100 may determine whether the remaining storage space of the second surrounding vehicle exceeds the predetermined storage space X2 ( 412 ), and when the predetermined storage space X2 is exceeded, the second It may be determined whether the time to leave the shadow area of the surrounding vehicle is shorter than a predetermined time T2 ( S413 ).

When the time for leaving the shadow area of the second surrounding vehicle is shorter than the predetermined time T2 , the vehicle 100 may store data of the vehicle 100 in the second surrounding vehicle ( 414 ). Thereafter, when the second surrounding vehicle is in a communication-enabled state according to a control command of the vehicle 100 , data of the vehicle 100 may be transmitted to the server 20 ( 415 ).

On the other hand, when the remaining storage space of the second surrounding vehicle and the time to leave the shadow area do not satisfy the aforementioned predetermined conditions (NO in steps 411 and 412 ), the vehicle 100 determines that the second surrounding vehicle is within the third range. In operation 421 , a control command may be given to the second neighboring vehicle to select a third neighboring vehicle having a similar travel path to the vehicle 100 ( S421 ). Hereinafter, the above-described process is repeated.

5 is a flowchart of a method for controlling a vehicle according to an exemplary embodiment.

First, when the vehicle 100 according to an embodiment receives a cooperation request signal (510), it can check the data collection amount per second (Dsec) in the own vehicle (520).

If the data collection amount per second (Dsec) is checked, the storage space allocable time (Tsec) can be checked (530), and specifically, Equation 1 using the total capacity of the storage space in the own vehicle, the current storage amount, etc. may be used.

Next, the vehicle 100 may check a time (Texit) to leave the shaded area ( 540 ). In this case, the time to leave the shadow area (Texit) may mean a time taken to enter the communication available area.

When the data collection amount per second (Dsec) and the time to leave the shaded area (Texit) are checked, the vehicle 100 may determine whether the time to leave the shaded area (Texit) is less than the storage space allocable time (Tsec) ( 550).

When the time to leave the shaded area (Texit) is less than the storage space allocable time (Tsec), the vehicle 100 may estimate the storage space allocable amount Sa (560), and in this case, the above-mentioned Equation 2 may be used. there is.

Thereafter, the vehicle 100 may transmit a cooperation enable signal including information on the estimated storage space allocable amount Sa to the other vehicle ( 570 ).

As another example, when the time to leave the shaded area (Texit) is not less than the storage space allocable time (Tsec), that is, when the time to leave the shaded area (Texit) is greater than or equal to the storage space allocable time (Tsec), the vehicle ( 100) may transmit a non-cooperation signal to the other vehicle (580).

The disclosed embodiments have been described with reference to the accompanying drawings as described above. Those of ordinary skill in the art to which the present invention pertains will understand that the present invention may be practiced in other forms than the disclosed embodiments without changing the technical spirit or essential features of the present invention. The disclosed embodiments are illustrative and should not be construed as limiting.

1: Communication system
20: server
30: mobile terminal
50: surrounding vehicles
70: communication network
100: vehicle
110: communication department
120: storage
130: control unit

Claims (20)

a communication unit that communicates with surrounding vehicles;
a storage unit provided with a storage space to store data; and
When the remaining storage space of the storage unit is smaller than the predetermined storage space, a nearby vehicle to transmit a request for cooperation for allocating storage space is selected according to the time it takes to leave the communication shadow area, and data is transmitted to the selected surrounding vehicle. A vehicle comprising a; a control unit for transmitting. According to claim 1,
The control unit is
When the remaining storage space of the storage unit is smaller than a predetermined storage space, a vehicle for selecting a neighboring vehicle to transmit the cooperation request according to a progress path. 3. The method of claim 2,
The control unit is
When the remaining storage space of the storage unit is smaller than a predetermined storage space, a vehicle for selecting a neighboring vehicle having a similar travel path as a neighboring vehicle to transmit the cooperation request. delete 4. The method of claim 3,
The control unit is
When the remaining storage space of the storage unit is smaller than the predetermined storage space, a neighboring vehicle having a similar travel path among neighboring vehicles within a first range is selected as a first neighboring vehicle, and the remaining storage space of the first neighboring vehicle and the first neighboring vehicle are selected. A vehicle for selecting a first surrounding vehicle as a surrounding vehicle to transmit the request for cooperation according to at least one of a time required for the surrounding vehicle to leave the communication shadow area. 6. The method of claim 5,
The control unit is
If at least one of a case in which the remaining storage space of the first surrounding vehicle is greater than a predetermined value and a case in which the time it takes for the first surrounding vehicle to leave the communication shadow area is less than a predetermined time, the cooperation of the first surrounding vehicle A vehicle that selects a nearby vehicle to send the request to. 6. The method of claim 5,
The control unit is
When the remaining storage space of the first surrounding vehicle is less than or equal to a predetermined value and when the time taken to leave the communication shadow area of the first surrounding vehicle is less than or equal to the predetermined time, the first surrounding vehicle is within the second range A vehicle that transmits a control command to the first surrounding vehicle so as to select a surrounding vehicle having a similar travel path to the vehicle among surrounding vehicles in the vehicle as the second surrounding vehicle. According to claim 1,
The control unit is
The selected surrounding vehicle stores the transmitted data, and when the surrounding vehicle enters a point not in the communication shadow area, a control command is transmitted to the surrounding vehicle so that the surrounding vehicle transmits the received data to the server vehicle that does. a communication unit that communicates with surrounding vehicles;
a storage unit provided with a storage space to store data; and
a control unit that checks the data collection amount per second of the storage unit, and determines a storage space allocable time according to the total capacity of the storage space and the storage amount of the storage space; including,
The control unit is
The vehicle determines a time taken for the vehicle to leave the communication shadow area, and determines an allocable amount of storage space according to the checked time, the determined storage space allocation time, and the data collection amount per second. delete performing communication with surrounding vehicles;
when the remaining storage space of the storage unit is smaller than the predetermined storage space, selecting a neighboring vehicle to transmit a request for cooperation for allocating the storage space according to the time taken to leave the communication shadow area; and
transmitting data to the selected surrounding vehicle; A control method of a vehicle comprising a. 12. The method of claim 11,
The step of selecting a nearby vehicle to transmit the cooperation request includes:
When the remaining storage space of the storage unit is smaller than a predetermined storage space, a control method of a vehicle for selecting a neighboring vehicle to transmit the cooperation request according to a progress path. 13. The method of claim 12,
The step of selecting a nearby vehicle to transmit the cooperation request includes:
When the remaining storage space of the storage unit is smaller than a predetermined storage space, a control method of a vehicle for selecting a neighboring vehicle having a similar travel path as a neighboring vehicle to transmit the cooperation request. delete 14. The method of claim 13,
The step of selecting a nearby vehicle to transmit the cooperation request includes:
selecting, as a first neighboring vehicle, a neighboring vehicle having a similar travel path among neighboring vehicles within a first range when the remaining storage space of the storage unit is smaller than a predetermined storage space; and
Determining whether to select the first surrounding vehicle as the surrounding vehicle to transmit the cooperation request according to at least one of the remaining storage space of the first surrounding vehicle and the time it takes for the first surrounding vehicle to leave the communication shadow area A control method of a vehicle including; 16. The method of claim 15,
The step of determining whether to select the first surrounding vehicle as a surrounding vehicle to transmit the cooperation request includes:
If at least one of a case in which the remaining storage space of the first surrounding vehicle is greater than a predetermined value and a case in which the time it takes for the first surrounding vehicle to leave the communication shadow area is less than a predetermined time, the cooperation of the first surrounding vehicle A vehicle control method that selects a nearby vehicle to transmit a request to. 16. The method of claim 15,
The step of selecting a nearby vehicle to transmit the cooperation request includes:
When the remaining storage space of the first surrounding vehicle is less than or equal to a predetermined value and when the time taken to leave the communication shadow area of the first surrounding vehicle is less than or equal to the predetermined time, the first surrounding vehicle is within the second range The method of controlling a vehicle further comprising: transmitting a control command to the first neighboring vehicle to select a neighboring vehicle having a similar travel path to the vehicle among neighboring vehicles in the vehicle as a second neighboring vehicle. 12. The method of claim 11,
storing the received data by the selected surrounding vehicle; and
When the surrounding vehicle enters a point other than the communication shadow area, transmitting a control command to the surrounding vehicle so that the surrounding vehicle transmits the received data to a server; performing communication with surrounding vehicles;
storing data in a storage unit; and
checking the data collection amount per second for storing the data by the storage unit;
determining a storage space allocable time according to the total capacity of the storage unit and the amount of data stored in the storage unit;
checking the time it takes for the vehicle to leave the communication shadow area; and
and determining an allocable amount of storage space according to the confirmed time, the determined storage space allocation time, and the data collection amount per second. delete

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