KR102558693B1 - Vehicle and control method of the vehicle - Google Patents

Abstract

The vehicle receives power from a camera acquiring an image of the surroundings of the vehicle, a first power supply unit, a second power supply unit, a sensor unit obtaining driving information and impact information of the vehicle, a storage unit including a buffer and a non-volatile memory, a communication unit receiving satellite signals, and the first power supply unit, storing the image around the vehicle in the buffer for a predetermined time period, and when it is determined that the vehicle has been in an accident based on the impact information, power is supplied from at least one of the first power supply unit and the second power supply unit to a predetermined point in time before the accident and a control unit for controlling transfer and storage of data stored in the buffer to a non-volatile memory from to a predetermined point in time after an accident occurs, wherein the control unit determines first coordinate information of the vehicle based on driving information obtained from the sensor unit, determines second coordinate information of the vehicle based on a satellite signal obtained from the communication unit, and transfers the data stored in the buffer to the non-volatile memory from a predetermined previous point in time to a predetermined later point in time based on a time point when the difference between the first coordinate information and the second coordinate information exceeds a predetermined reference difference. and can be controlled to save.

Description

Vehicle and vehicle control method {VEHICLE AND CONTROL METHOD OF THE VEHICLE}

The present invention relates to a vehicle including a black box capable of securing images even in an accident situation and a vehicle control method.

Recently, an increasing number of vehicles are installing blind spot detection devices on the front and rear of the vehicle so that the driver can conveniently check blind spots while driving, and the device for checking these blind spots is a system of a general method that allows the driver to view the captured images through the monitor of the A/V system inside the vehicle after the camera captures images of the front and rear.

For example, in recent years, a vehicle video recording device (DVR) that is installed in a vehicle to record external images of the vehicle has been developed and commercialized to identify the cause of a traffic accident, etc., and to present an economical, practical, and technical alternative. A vehicle black box is used.

It is common for a black box of a vehicle to obtain an image of the surroundings of the vehicle by receiving power through a power source provided in the vehicle. However, a situation in which an image of a black box of a vehicle is required is a vehicle accident situation, and even in a vehicle accident situation, a situation in which the black box needs to store images independently of power supply may occur, and related research is being conducted.

The present invention provides a vehicle, a vehicle control method, and an electronic module capable of stably securing images around the vehicle before and after the accident even in an accident situation in which power provided in the vehicle is damaged.

A vehicle according to an embodiment includes a sensor unit that obtains driving information and impact information of the vehicle; a storage unit including a buffer and a non-volatile memory; a communication unit for receiving a satellite signal; and a control unit that receives power from the first power supply unit, stores an image of the surroundings of the vehicle in the buffer for a predetermined time period, and receives power from at least one of the first power supply unit and the second power supply unit when it is determined that the vehicle has had an accident based on the impact information, and transfers data stored in the buffer to the non-volatile memory and stores the data stored in the buffer from a predetermined time before the accident to a predetermined time after the accident. 1 coordinate information is determined, 2nd coordinate information of the vehicle is determined based on the satellite signal acquired by the communication unit, and the difference between the first coordinate information and the second coordinate information is a predetermined reference point. Based on a time point, the data stored in the buffer from a predetermined previous time point to a predetermined later time point may be controlled to be transferred to and stored in the non-volatile memory.

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The control unit receives power from the second power supply unit when the impact amount included in the impact information exceeds a predetermined value.

The data stored in the buffer may be transferred to and stored in the non-volatile memory.

The control unit may control data stored in the buffer to be transferred to and stored in the non-volatile memory from a time prior to the occurrence of a predetermined accident.

If the amount of shock included in the shock information is less than a predetermined value, the control unit may receive power from the first power supply unit and control data stored in the buffer to be transferred to and stored in the non-volatile memory.

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The control unit may determine whether an accident of the vehicle has occurred based on the satellite signal received from the communication unit and the impact information.

The controller may control the data to be encrypted and stored in the non-volatile memory.

A vehicle control method according to an embodiment includes obtaining an image around a vehicle, obtaining impact information of the vehicle, receiving satellite signals, obtaining driving information of the vehicle, receiving power from a first power supply unit, storing an image around the vehicle in a buffer for a predetermined time, and receiving power from at least one of the first power supply unit and the second power supply unit to receive power from at least one of the first power supply unit and the second power supply unit, and storing data stored in the buffer for a predetermined time based on the impact information. The control to transfer and store the data stored in the buffer to the non-volatile memory includes determining first coordinate information of the vehicle based on the driving information, determining second coordinate information of the vehicle based on the satellite signal, and transferring the data stored in the buffer to the non-volatile memory from a predetermined previous time point to a predetermined later time point based on a time point when a difference between the first coordinate information and the second coordinate information exceeds a predetermined reference difference, and storing the data stored in the buffer. This may include controlling

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Controlling to transfer and store the data stored in the buffer to the non-volatile memory may include controlling to transfer and store the data stored in the buffer to the non-volatile memory by receiving power from the second power supply unit when the amount of impact included in the impact information exceeds a predetermined value.

The controlling to transfer and store the data stored in the buffer to the non-volatile memory may include controlling to transfer and store the data stored in the buffer to the non-volatile memory from a point before a predetermined accident occurs.

Controlling to transfer and store the data stored in the buffer to the non-volatile memory may include controlling to transfer and store the data stored in the buffer to the non-volatile memory by receiving power from the first power supply unit when the impact amount included in the impact information is less than a predetermined value.

The vehicle control method according to an embodiment may further include receiving a satellite signal, acquiring driving information of the vehicle, determining first coordinate information of the vehicle based on the driving information, determining second coordinate information of the vehicle based on the satellite signal, and transferring data stored in the buffer to the non-volatile memory and storing the data stored in the buffer from a predetermined previous time point to a predetermined later time point based on a time point when a difference between the first coordinate information and the second coordinate information exceeds a predetermined reference difference. there is

A vehicle, a vehicle control method, and an electronic module according to an embodiment can stably secure images around the vehicle before and after the accident even in an accident situation in which power provided in the vehicle is damaged.

1 is a control block diagram according to an embodiment.
2 is a flow chart according to one embodiment.
3 is a table showing types of vehicle accidents according to an exemplary embodiment.
4 and 5 are diagrams for explaining an operation of determining occurrence of an accident according to an exemplary embodiment.

Like reference numerals designate like elements throughout the specification. This specification does not describe all elements of the embodiments, and general content in the technical field to which the present invention belongs or overlapping content between the embodiments is omitted. The term 'unit, module, member, or block' used in the specification may be implemented in software or hardware, and according to embodiments, a plurality of 'units, modules, members, or blocks' may be implemented as a single component, or a single 'unit, module, member, or block' may include a plurality of components.

Throughout the specification, when a part is said to be "connected" to another part, this includes not only the case of being directly connected but also the case of being indirectly connected, and the indirect connection includes being connected through a wireless communication network.

In addition, when a certain component is said to "include", this means that it may further include other components without excluding other components unless otherwise stated.

Throughout the specification, when a member is said to be located “on” another member, this includes not only a case where a member is in contact with another member, but also a case where another member exists between the two members.

Terms such as first and second are used to distinguish one component from another, and the components are not limited by the aforementioned terms.

Expressions in the singular number include plural expressions unless the context clearly dictates otherwise.

In each step, the identification code is used for convenience of explanation, and the identification code does not describe the order of each step, and each step may be performed in a different order from the specified order unless a specific order is clearly described in context.

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 according to an embodiment.

Referring to FIG. 1 , a vehicle 1 according to an embodiment may include a communication unit 101, a sensor unit 102, a first power supply unit 103, a camera 104, and an electronic module 110.

Also, the electronic module according to an embodiment may include a control unit 111 , a second power supply unit 112 , and a storage unit 113 .

The sensor unit 102 may obtain impact information received by the vehicle.

According to an embodiment, the sensor unit 102 may be implemented as a 3-axis sensor as an acceleration sensor. The acceleration sensor may be implemented to obtain acceleration information in x-axis, y-axis, and z-axis directions when the vehicle moves in three dimensions. The acceleration sensor may be implemented as a gyro sensor. The sensor unit 102 is not limited as long as it is configured to calculate vehicle impact information.

The communication unit 101 may be provided to receive satellite signals. The satellite signal may include a Global Positioning System (GPS) signal. The vehicle can calculate the current position of the vehicle by receiving signals from satellites.

The first power supply unit 103 and the second power supply unit 112 may transmit power to components of the vehicle and components of the electronic module, respectively.

Each of the first power supply unit 103 and the second power supply unit 112 may be provided with a battery.

A battery is provided in a typical vehicle. However, in the case of the vehicle 100, a large-capacity high-voltage battery is required. The electric power stored in each power unit may be used to generate power by driving components provided in the vehicle. A battery according to an embodiment of the present invention may be a lithium battery.

In particular, the second power supply unit 112 may be provided with a capacity capable of operating while storing vehicle information into the storage unit 113 even if the first power supply unit 103, which is the vehicle's main power supply, is damaged.

The camera 104 may acquire images around the vehicle.

According to an embodiment, the camera 104 may be provided in the side mirrors 14R and 14L provided in the vehicle to obtain an image around the vehicle.

The camera 104 installed in the vehicle may include a charge-coupled device (CCD) camera 104 or 110 or a CMOS color image sensor. Here, both CCD and CMOS denote sensors that convert and store light entering through the lenses of the cameras 104 and 101 into electrical signals. Specifically, a CCD (Charge-Coupled Device) camera 104 is a device that converts an image into an electrical signal using a charge-coupled device. In addition, CIS (CMOS Image Sensor) means a low-consumption, low-power type imaging device having a CMOS structure, and serves as an electronic film for digital devices. In general, CCD is more sensitive than CIS and is widely used in the vehicle 1, but is not necessarily limited thereto.

The storage unit 113 may include a buffer 113-1 and an inactive memory 113-2.

The buffer 113-1 may refer to a storage area used for the purpose of good combination by compensating for a difference in data transmission speed or processing speed between the two devices when data is transmitted from one device to another.

The storage unit 113 may be implemented as at least one of a non-volatile memory device such as 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, a volatile memory device such as a random access memory (RAM), or a storage medium such as a hard disk drive (HDD) and a CD-ROM, but is not limited thereto. The storage unit 113 may be a memory implemented as a separate chip from the processor described above in relation to the control unit 111, or may be implemented as a single chip with the processor.

The control unit 111 may receive power from the first power supply unit 103 and store an image around the vehicle in the buffer 113-1 for a predetermined time.

That is, the control unit 111 is included in the electronic module and supplied with power from the first power supply unit 103 provided outside the electronic module, and continuously acquires images of the surroundings of the vehicle from the camera 104 in the buffer 113-1. Can store.

The control unit 111 may determine whether the vehicle has an accident based on the impact information. A detailed operation by which the control unit 111 determines whether a vehicle accident has occurred will be described later.

The control unit 111 receives power from at least one of the first power supply unit 103 and the second power supply unit 112, and controls the data stored in the buffer 113-1 to be transferred to and stored in the inactive memory 113-2 from a predetermined time before an accident to a predetermined time after the accident occurs.

That is, the control unit 111 transmits and stores images from before a predetermined time point based on the time point at which an accident occurred to a time point after a predetermined time point based on the image and the time point determined based on the accident occurrence time from the buffer 113-1 to the inactive memory 113-2.

The control unit 111 may determine whether the impact amount included in the impact information exceeds a predetermined value. Exceeding the predetermined value may mean that the accident occurred in the vehicle is serious, so that the control unit 111 included in the electronic module is not smoothly supplied with power from the first power unit 103 provided in the vehicle. It can mean that it is in a state.

In this case, the control unit 111 receives power from the second power supply unit 112 provided inside the electronic module.

Data stored in the buffer 113-1 may be transferred to and stored in the non-volatile memory 113-2.

In addition, the control unit 111 may control data stored in the buffer 113-1 from a time prior to the occurrence of a predetermined accident to be transferred to and stored in the inactive memory 113-2. That is, when a serious accident occurs, data including images of the surroundings of the vehicle may be stored from the time of the accident until the non-volatile memory provided in the electronic module is full. In this case, the controller 111 can store all data in the non-volatile memory regardless of the form.

If the amount of impact included in the impact information is less than a predetermined value, the controller 111 may determine that the accident occurred in the vehicle is relatively minor.

In this case, since power can be supplied from the first power supply unit 103, which is a central power supply provided in the vehicle, the control unit 111 receives power from the first power supply unit 103 and controls the data stored in the buffer 113-1 to be transferred to the inactive memory 113-2 and stored.

In addition, in this case, the control unit 111 may transfer the data stored in the buffer 113-1 to the inactive memory 113-2 and store it in a predetermined form. Forms transferred and stored by the controller 111 to the inactive memory 113-2 may include steering torque, brake pedal information, vehicle speed, track information, and acceleration sensor values.

The controller 111 may determine a predetermined time when the impact amount included in the impact information is less than a predetermined value. A detailed description related to this will be described later.

The control unit 111 may determine whether or not an accident of the vehicle has occurred based on a global positioning system (GPS) signal received from the communication unit 101 and the impact information.

Specifically, the control unit 111 may determine the coordinate information of the vehicle based on the satellite signal received by the communication unit 101, and as will be described later, may estimate the coordinate information of the vehicle based on the information obtained from the sensor unit. If the difference between the two coordinate information exceeds a predetermined value, it can be determined that an accident occurs or an accident is highly likely to occur.

As long as the signal of the communication unit 101 used by the control unit 111 is a signal of a vehicle that can determine whether or not an accident of the vehicle has occurred, the type is not limited.

The control unit 111 may control data to be encrypted and stored in the inactive memory 113-2. That is, the control unit 111 may encrypt data existing in the buffer 113-1. The operation of encrypting by the control unit 111 may include a process of performing symmetric key encryption through random key generation and asymmetric encryption of the generated random key using the OEM's public key.

In addition, the controller 111 performs a battery management function, a storage processing function, a data extraction function, and an accident situation determination function.

The data storage processing function may refer to a function of storing vehicle information in the buffer 113-1, detecting an impact, determining whether the vehicle has an accident, and encrypting and recording data in a non-volatile memory when a storage condition occurs.

The battery management function may refer to a function for guaranteeing a lifespan of the battery.

The data extraction function may refer to a data extraction interface function.

The accident situation determination function may refer to a determination function that comprehensively determines accident signals from an indirect accident analysis device and an autonomous driving controller.

The indirect accident analysis device may refer to a function of determining whether a motion of a vehicle recognized by using an acceleration sensor or the like is out of an expected normal behavior range based on a vehicle model. A detailed description related to this will be described later.

At least one component may be added or deleted corresponding to the performance of components of the vehicle shown in FIG. 1 . In addition, it will be easily understood by those skilled in the art that the mutual positions of the components may be changed corresponding to the performance or structure of the system.

Meanwhile, each component shown in FIG. 1 means software and/or hardware components such as a Field Programmable Gate Array (FPGA) and an Application Specific Integrated Circuit (ASIC).

2 is a flow chart according to one embodiment.

Referring to FIG. 2 , the vehicle may store an image around the vehicle in a buffer regardless of an accident (1001). In addition, the control unit provided in the vehicle may determine whether an accident has occurred based on various pieces of information (1002).

The controller may determine whether an accident occurs and the amount of impact received by the vehicle exceeds a predetermined amount of impact (1003). The control unit may determine that a serious accident has occurred if the amount of impact exceeds a predetermined amount of impact.

The control unit may determine that a minor accident has occurred if the amount of impact does not exceed a predetermined amount of impact.

If the control unit does not exceed a predetermined amount of impact, it receives power from the first power supply unit provided in the vehicle rather than the electronic module itself (1004), and stores data from the buffer to inactive memory in a predetermined form for a predetermined time (1005).

When the predetermined amount of impact is exceeded, the control unit may determine that it is difficult to receive power from the first power supply unit provided in the vehicle and receive power from the second power supply unit provided in the electronic module itself (1006).

Meanwhile, in this case, the control unit may transfer data from the buffer to the inactive memory, encrypt and store the data without limiting the storage time or the stored data (1007, 1008).

3 is a table showing types of vehicle accidents according to an exemplary embodiment.

Referring to FIG. 3 , the types of accidents are classified, and the time and storage form of vehicle image acquisition and power supply are presented in the corresponding type.

As described above, the first type may mean a case in which an accident including a case in which the amount of momentum received by the vehicle exceeds a predetermined value is relatively minor.

The first type may include an incomplete accident, such as when autonomous driving is forcibly released or when an airbag deploys. In this case, an image around the vehicle of a predetermined range of time based on the time of the accident is required, and the vehicle image may be stored in the inactive memory in a determined time range such as "15 seconds" and "30 seconds", respectively.

Also, in this case, the form of stored data may include limited information such as steering torque. In case of a type 1 accident, the control unit may receive power from the first power supply unit, which is a central power supply unit provided in the vehicle.

On the other hand, the second type of accident may include a serious accident such as complete destruction of the vehicle, and in this case, power can be supplied from the second power supply unit provided in the electronic module itself, and all data can be stored without time limit within the capacity limit of the inactive memory.

Meanwhile, the type of accident described in FIG. 3 is only one embodiment of the present invention, and there is no limitation on the time and content of storing images.

4 and 5 are diagrams for explaining an operation of determining occurrence of an accident according to an exemplary embodiment.

Referring to FIG. 4A , the controller may determine whether an accident has occurred based on vehicle information collected including information collected from a sensor unit such as an acceleration sensor.

The control unit determines whether an accident of the vehicle has occurred based on direct accident determination through a predefined failure detection signal (CAN, Ethernet, etc.) in other electronic modules including the electronic module external control module 105 and sensor unit 102, such as an autonomous driving controller.

The control unit 111 may derive analytical redundancy for the sensor signals obtained by the sensor unit 102 based on the vehicle dynamics model and determine whether an accident has occurred based on an indirect diagnosis of an accident situation through the derived analytical redundancy.

The controller 111 may determine a difference between a numerical value calculated through a vehicle dynamics model and an actually measured numerical value, and may determine an indirect accident when the size of the difference is greater than a predetermined value.

Figure 4b is a diagram for explaining the operation of determining the degree of risk.

Referring to FIG. 4B , the control unit 111 may determine the degree of accident risk by interpreting driving information of a vehicle operating in a current driving environment by linking the communication unit 101 and the sensor unit 102 with navigation map information. In addition, the control unit may determine a dangerous situation based on the accident risk.

The control unit may determine coordinate information of the vehicle using each of the navigation map information of the communication unit and the sensor unit, and may determine the degree of risk based on a difference between the coordinate information determined based on each.

In detail, the communication unit 101 may obtain vehicle location and heading information by receiving the GPS signal S4b.

In addition, the sensor unit provided in the vehicle may include a yaw rate sensor, a steering sensor, and a wheel speed sensor, and may obtain driving information of the vehicle based on the yaw rate sensor.

Heading information may refer to information including a direction in which the vehicle is currently driving.

The control unit may determine a difference between the heading information derived using the steering sensor and the heading information using the yaw rate sensor, and may determine that the degree of danger is high if the difference exceeds a predetermined value.

The control unit may update the head change amount and estimation of the vehicle based on the information received from the sensor unit.

The vehicle may determine a moving distance of the vehicle and a change amount of heading information of the vehicle based on steering information and yaw rate information acquired by the sensor unit.

The control unit may calculate the moving distance of the vehicle using wheel information of the vehicle from the sensor unit and continuously estimate the coordinate value EP of the vehicle based on the above-described heading information.

In addition, the control unit may determine the reception strength of the place where the vehicle is driving based on the navigation information based on the communication unit, and if the GPS reception strength is less than a predetermined value, may determine a wide allowable residual range. When the risk of an accident is high, the control unit may narrowly determine the range of the residual.

The residual may mean a difference between the observed coordinate value DP of the vehicle and the coordinate value EP estimated by the above method.

On the other hand, the vehicle may determine a reference difference of residuals at the time of an accident, and if the difference between the coordinate value DP of the vehicle received through the communication unit and the coordinate value EP estimated by the above-described method exceeds a predetermined reference difference, it can be determined that an accident may occur.

Meanwhile, the controller may determine a reference difference based on navigation information for the current driving section of the vehicle. When the residual of the vehicle exceeds the reference difference, the controller may determine that the vehicle has an accident.

The reference difference may be determined differently for each section using vehicle accident data in the corresponding section. The control unit may collect residual data at the time of an accident and update the reference difference of the corresponding section.

In this case, the control unit may transfer and store the data stored in the buffer from a predetermined previous time point to a predetermined later time point based on the time point exceeding the reference difference to the inactive memory. The control unit may be used to correct situational judgment accuracy based on the calculated accident risk.

Meanwhile, the above description is only an example for determining the degree of risk, and the operation is not limited as long as it is an operation for determining the probability of a vehicle accident.

Referring to FIGS. 5A and 5B , the control unit 111 may determine whether the external control module is normally operating through a code signal repeatedly received from the external control module 105 .

Meanwhile, the external control module 105 may include an autonomous driving controller 105-1 and an indirect accident analysis device 105-2.

The control unit 111 may distinguish a first type with a minor accident and a second type with a serious accident.

The control unit 111 may determine that no accident has occurred if the HeartBeat of the autonomous driving controller is normal and the direct accident detection signal detected by the autonomous driving controller is normal.

The control unit 111 determines that a type 1 accident, which is a minor accident type, has occurred when the HeartBeat of the autonomous driving controller is normal and the direct accident detection signal of the autonomous driving controller detects that an accident has occurred, but the analysis result of the indirect accident analysis device indicates that no accident has occurred.

The control unit 111 determines that a type 2 accident, which is a serious accident type, has occurred when the HeartBeat of the autonomous driving controller is normal, the direct accident detection signal of the autonomous driving controller detects that an accident has occurred, and the analysis result of the indirect accident analysis device indicates that an accident has occurred.

The control unit 111 may determine that a failure has occurred in the autonomous driving controller when the HeartBeat of the autonomous driving controller is abnormal and the analysis result of the indirect accident analysis device indicates that no accident has occurred.

The controller 111 may determine that the second type of accident has occurred when the HeartBeat of the autonomous driving controller is abnormal and the analysis result of the indirect accident analysis device indicates that an accident has occurred.

The controller 111 may determine that an accident has occurred in the external control module, and if the HeartBeat is abnormal, it may be determined that an accident of the second type has occurred.

The control unit 111 may determine that an accident of the second type occurs when the external control module 105 determines that an accident has occurred, the HeartBeat is normal, and the direct accident detection signal is an accident.

The controller 111 may determine that an accident of the first type occurs when the external control module 105 determines that no accident has occurred, HeartBeat is normal, and the direct accident detection signal is an accident.

On the other hand, in the case of a serious accident of the second type, the controller 111 stores information for the longest possible storage time according to the inactive memory.

Meanwhile, FIGS. 4 and 5 are only examples for determining whether an accident occurs according to an embodiment, and there is no limitation on an operation for determining an accident.

Meanwhile, the disclosed embodiments may be implemented in the form of a recording medium storing instructions executable by a computer. Instructions may be stored in the form of program codes, and when executed by a processor, create program modules to perform operations of the disclosed embodiments. The recording medium may be implemented as a computer-readable recording medium.

Computer-readable recording media include all types of recording media in which instructions that can be decoded by a computer are stored. For example, there may be read only memory (ROM), random access memory (RAM), magnetic tape, magnetic disk, flash memory, optical data storage device, and the like.

As described above, the disclosed embodiments have been described with reference to the accompanying drawings. Those skilled in the art to which the present invention pertains will understand that the present invention can be practiced in a form different from 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: vehicle
101: Ministry of Communication
102: sensor unit
103: first power unit
104: camera
102: sensor unit
110: electronic module
111: control unit
112: second power unit
113: storage unit

Claims (12)

A camera that acquires an image of the surroundings of the vehicle;
a first power unit;
a second power unit;
a sensor unit that obtains driving information and impact information of the vehicle;
a storage unit including a buffer and a non-volatile memory;
a communication unit for receiving a satellite signal; and
Receiving power from the first power supply unit,
Storing an image around the vehicle in the buffer for a predetermined time;
When it is determined that the vehicle has had an accident based on the impact information, a control unit for receiving power from at least one of the first power supply unit and the second power supply unit and controlling the data stored in the buffer from a predetermined time before the accident to a predetermined time after the accident to transfer and store the data stored in the buffer to the non-volatile memory;
The control unit,
A vehicle that determines first coordinate information of the vehicle based on the driving information acquired by the sensor unit, determines second coordinate information of the vehicle based on the satellite signal obtained from the communication unit, and transmits and stores the data stored in the buffer to the non-volatile memory from a predetermined previous time point to a predetermined later time point based on a time point when a difference between the first coordinate information and the second coordinate information exceeds a predetermined reference difference. According to claim 1,
The control unit,
If the impact amount included in the impact information exceeds a predetermined value,
Receiving power from the second power supply
A vehicle that controls data stored in the buffer to be transferred to and stored in the non-volatile memory.
According to claim 2,
The control unit,
A vehicle that controls data stored in the buffer to be transferred to and stored in the non-volatile memory from a point prior to a predetermined accident.
According to claim 1,
The control unit,
If the impact amount included in the impact information is less than a predetermined value,
Receiving power from the first power supply unit
A vehicle that controls data stored in the buffer to be transferred to and stored in the non-volatile memory.
delete According to claim 1,
The control unit,
A vehicle for determining whether an accident of the vehicle has occurred based on the satellite signal received from the communication unit and the impact information.
According to claim 1,
The control unit,
A vehicle controlling the data to be encrypted and stored in the non-volatile memory
Acquire images of the surroundings of the vehicle,
obtaining impact information of the vehicle;
receive satellite signals;
Obtain vehicle driving information;
Receiving power from the first power supply unit,
Storing an image around the vehicle in a buffer for a predetermined time;
When it is determined that the vehicle has had an accident based on the impact information, power is supplied from at least one of the first power supply unit and the second power supply unit, and the data stored in the buffer is transmitted to and stored in a non-volatile memory from a predetermined time before the accident to a predetermined time after the accident.
Control to transfer and store the data stored in the buffer to the non-volatile memory,
Determine first coordinate information of the vehicle based on the driving information;
Determine second coordinate information of the vehicle based on the satellite signal;
Based on the time point when the difference between the first coordinate information and the second coordinate information exceeds a predetermined reference difference, the data stored in the buffer is transmitted to the non-volatile memory from a predetermined previous time point to a predetermined later time point. A vehicle control method comprising controlling to transfer and store.
According to claim 8,
Controlling the data stored in the buffer to be transferred to and stored in the non-volatile memory is performed when the impact amount included in the impact information exceeds a predetermined value,
Receiving power from the second power supply
and controlling the data stored in the buffer to be transferred to and stored in the non-volatile memory.
According to claim 9,
Controlling to transfer and store the data stored in the buffer to the non-volatile memory includes controlling to transfer and store the data stored in the buffer to the non-volatile memory from a point before a predetermined accident occurs.
According to claim 8,
Control to transmit and store the data stored in the buffer to the non-volatile memory, if the impact amount included in the impact information is less than a predetermined value,
Receiving power from the first power supply unit
and controlling the data stored in the buffer to be transferred to and stored in the non-volatile memory.
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