KR20210063845A - Device and method for analysis in-vehicle data - Google Patents

Abstract

The present invention provides a device and a method for analyzing in-vehicle data. A device for analyzing in-vehicle data, according to an aspect of the present invention, comprises: a sensor module installed for each electrical component inside a vehicle to collect information generated during a driving process of the vehicle; an electronic control unit (ECU) for receiving and collecting information from the sensor module and controlling the electrical component of the vehicle on which the sensor module is mounted; and a data collection unit connected to a communication network between the ECUs to collect data for analysis. The data collection unit transmits, when there is manipulated data changed due to external intrusion through external network communication in the collected data, information on the ECU including the manipulated data to a display device in the vehicle to allow intuitive recognition of a user.

Description

DEVICE AND METHOD FOR ANALYSIS IN-VEHICLE DATA

The present invention relates to an in-vehicle data analysis apparatus and method, and more particularly, to an in-vehicle data analysis apparatus and method capable of checking the security of in-vehicle communication by analyzing data collected from the battlefield inside the vehicle. .

In modern automobiles, various modules provide various convenience functions due to the development of embedded systems and electric devices. With the development of automobiles, the possibility of various security threats through external access has increased due to the development of external sensors and communication networks due to the development of autonomous driving and V2X, including the electronicization of vehicle internal systems. It can directly affect the lives of passengers.

Therefore, when a traffic accident occurs, it is necessary to analyze the internal network of the vehicle or analyze the cause of the accident such as physical defects, driver negligence, and external attacks (attacks such as data manipulation through network penetration from the outside) through logs. .

Korean Patent Publication No. 2019-0119514 (published on October 22, 2019)

The present invention has been proposed to solve the above problems, and it is possible to analyze the data collected from the battlefield inside the vehicle to check the security of communication inside the vehicle, and to analyze the cause of the accident more accurately when a traffic accident occurs. An object of the present invention is to provide an apparatus and method for analyzing in-vehicle data.

Other objects and advantages of the present invention can be understood by the following description, and will be more clearly understood by an embodiment of the present invention. In addition, it will be easily understood that the objects and advantages of the present invention can be realized by the means shown in the claims and combinations thereof.

In accordance with one aspect of the present invention for achieving the above object, an apparatus for analyzing data inside a vehicle includes: a sensor module installed for each electric field inside a vehicle to collect information generated in the driving process of the vehicle; an electronic control unit (ECU) that receives and collects information from the sensor module and controls an electric field of a vehicle equipped with the sensor module; and a data collection unit connected to a communication network between the electronic control units to collect data for analysis, wherein the data collection unit includes, in the collected data, manipulated data changed by external intrusion through external network communication If present, the information of the electronic control unit including the manipulated data is transmitted to the display device in the vehicle so that the user can intuitively recognize it.

The electronic control unit includes an engine control module (ECM), a smart junction box (SJB), a smart key module (SMK), an electric vehicle control module (BCM), a cluster (CLU), a vehicle information system (IVI), and a motor driven power steering. (MDPS).

The communication network is characterized in that it is an internal network communication protocol of any one of CAN, FlexRay, MOST, and LIN.

When an accident occurs in the driving process, a data analysis determination unit for deriving accident analysis information by analyzing and determining the collected data; characterized in that it further comprises.

and an accident analysis information transmission display unit for transmitting and displaying the accident analysis information derived through the data analysis to the telematics device in the vehicle.

The accident analysis information is characterized in that it includes at least one of an accident occurrence location, a damaged part, and a damage degree.

When it is determined that the operation is impossible according to the damaged part or the degree of damage, a call command message transmission unit for transmitting a call command message to a preset insurance company; characterized in that it further comprises.

In a vehicle interior data analysis method in a vehicle interior data analysis apparatus according to another aspect of the present invention for achieving the above object, information generated in the driving process of the vehicle from a sensor module installed for each electric field inside the vehicle collecting; receiving and collecting information from the sensor module; Including; collecting data for analysis by being connected to a communication network between the electronic control units, wherein the step of collecting data for analysis includes, in the collected data, an operation changed by external intrusion through external network communication and transmitting information of the electronic control unit including the manipulated data to a display device in the vehicle when the processed data exists.

The electronic control unit includes an engine control module (ECM), a smart junction box (SJB), a smart key module (SMK), an electronic control module (BCM), a cluster (CLU), a vehicle information system (IVI), and a motor driven power steering. (MDPS).

The communication network is characterized in that it is an internal network communication protocol of any one of CAN, FlexRay, MOST, and LIN.

When an accident occurs during the driving process, the step of analyzing and determining the collected data to derive accident analysis information; characterized in that it further comprises.

Transmitting the accident analysis information derived through the data analysis to a telematics device in the vehicle to display;

The accident analysis information is characterized in that it includes at least one of an accident occurrence location, a damaged part, and a damage degree.

and transmitting a call command message to a preset insurance company when it is determined that driving is impossible depending on the damaged part or the degree of damage.

According to one aspect of the present invention, the security of communication inside the vehicle is checked by analyzing data collected from the battlefield inside the vehicle, the analysis of the cause of the accident when a traffic accident occurs is more accurate, and the analysis contents are more intuitively used by the user. There is an effect that can be provided to

The effects obtainable in the present invention are not limited to the above-mentioned effects, and other effects not mentioned will be clearly understood by those of ordinary skill in the technical field to which the present invention pertains from the following description. .

The following drawings attached to this specification illustrate preferred embodiments of the present invention, and serve to further understand the technical spirit of the present invention together with specific contents for carrying out the invention, so the present invention is in such drawings It should not be construed as being limited only to the items listed.
1 is a schematic functional block diagram of an in-vehicle data analysis apparatus according to an embodiment of the present invention;
2 is an example showing a connection relationship between main electronic control units in a vehicle according to an embodiment of the present invention;
3 is a view summarizing the roles of a main electronic control unit in a vehicle according to an embodiment of the present invention;
4 is a diagram illustrating a communication network according to an embodiment of the present invention;
5 is an example of a packet frame communicated in a CAN communication network according to an embodiment of the present invention;
6 is a schematic flowchart of a method for analyzing in-vehicle data according to an embodiment of the present invention.

The above-described objects, features and advantages will become more apparent through the following detailed description in relation to the accompanying drawings, and accordingly, those of ordinary skill in the art to which the present invention pertains can easily implement the technical idea of the present invention. There will be. In addition, in the description of the present invention, if it is determined that the detailed description of the known technology related to the present invention may unnecessarily obscure the gist of the present invention, the detailed description thereof will be omitted. Hereinafter, a preferred embodiment according to the present invention will be described in detail with reference to the accompanying drawings.

Throughout the specification, when a part "includes" a certain element, it means that other elements may be further included, rather than excluding other elements, unless otherwise stated. In addition, “… The term “unit” means a unit that processes at least one function or operation, which may be implemented as hardware or software or a combination of hardware and software.

1 is a schematic functional block diagram of an in-vehicle data analysis apparatus according to an embodiment of the present invention, and FIG. 2 is an example showing a connection relationship between main electronic control units in a vehicle according to an embodiment of the present invention; FIG. 3 is a diagram summarizing the roles of a main electronic control unit in a vehicle according to an embodiment of the present invention, FIG. 4 is a diagram illustrating a communication network according to an embodiment of the present invention, and FIG. 5 is an embodiment of the present invention It is an example of a packet frame communicating with a CAN communication network according to

Referring to FIG. 1 , the in-vehicle data analysis apparatus according to the present embodiment includes a sensor module 110 , an Electronic Control Unit (ECU) 120 , and a data collection unit 130 .

The sensor module 110 is installed for each electric field inside the vehicle and collects information generated in the driving process of the vehicle.

The electronic control unit (ECU) 120 receives and collects information from the sensor module 110 and controls the electric field of the vehicle in which the sensor module 110 is mounted. In order to efficiently converge information and communication technology with a vehicle, the use of an electronic control unit (ECU) 120 is essential. Most recently produced automobiles are equipped with about 100 electronic control units 120 , and when data is collected after connecting to a communication network between the electronic control units 120 , most information about the vehicle can be comprehensively grasped. . The connection relationship between the electronic control units 120 is as shown in FIG. 2 . The electronic control unit 120 includes an engine control module (ECM), a smart junction box (SJB), a smart key module (SMK), an electric field control module (BCM), a cluster (CLU), a vehicle information system (IVI), and a motor drive. Power steering (MDPS) may be included.

Meanwhile, each electronic control unit 120 may serve as shown in FIG. 3 . The engine control module (ECM) serves to control the engine by collecting information transmitted from each sensor. The smart junction box (SJB) supplies power and a signal to the connected electronic control unit (ECU) 120 . In addition, the smart junction box performs some electric field control functions that are functions of the electric field control module (BCM). The smart key module (SMK) performs verification by communicating with the smart key through the wireless communication module. The electric vehicle control module (BCM) performs various vehicle body control, such as locking and/or unlocking a door lock, and controlling a headlight. The cluster (CLU) is in the form of a dashboard that outputs various vehicle information including vehicle speed, RPM, and remaining fuel amount. The vehicle information system (IVI) is an integrated system of audio, multimedia devices and navigation. Motor driven power steering (MDPS) is an auxiliary steering device for operating a power steering system.

The data collection unit 130 is connected to a communication network between the electronic control units 120 to collect data for analysis. The data collection unit 130, when there is manipulated data changed due to external intrusion through external network communication in the collected data, information of the electronic control unit 120 including the manipulated data to a display device in the vehicle It can be transmitted so that the user can intuitively recognize it. In this case, the communication network may be a communication protocol for performing communication between the electronic control units 120 inside the vehicle, as shown in FIG. 4 . That is, the communication protocol for performing communication between the electronic control units 120 inside the vehicle may include a controller area network (CAN), FlexRay, a media oriented system transport (MOST), a local interconnect network (LIN), and the like. . That is, as the number of electronic control units 120 mounted on the vehicle increases, efficient communication between the electronic control units 120 is required, and various communication techniques as described above can be used as the vehicle's internal network communication protocol. have. Among the above-mentioned communication protocols, CAN is a representative in-vehicle network technology, and is a standard communication standard in which ECUs in a vehicle are connected in parallel to perform communication in one network, and may be used for information exchange between the electronic control units 120 . On the other hand, CAN is a peer-to-peer (P2P) network, and the message does not include an address and only includes identifiers related to priority. At this time, the structure of the packet frame communicated through the CAN communication network is shown in FIG. 5 . Packets communicated through the CAN communication network may be prioritized based on identifiers, and if messages collide due to simultaneous transmission, they may be processed based on the priority.

Meanwhile, the CAN communication network may be divided into three types. That is, the CAN communication network may be divided into Body-CAN (B-CAN), Chassis-CAN (C-CAN), and Multimedia-CAN (M-CAN). B-CAN may be a communication network between modules for controlling in-vehicle parts of a vehicle, such as doors, seats, wipers, and the like. C-CAN may be a communication network in which related messages such as accelerator, brake, gear, speed and RPM are related to actual vehicle operation. The M-CAN may be a communication network for interworking with a navigation device or an in-vehicle multimedia communication device.

Meanwhile, the in-vehicle data analysis apparatus according to the present embodiment may further include a data analysis determination unit 140 .

The data analysis determination unit 140 may derive accident analysis information by analyzing and determining the collected data when an accident occurs during the driving process. In this case, the accident analysis information derived through data analysis may be transmitted and displayed to the telematics device in the vehicle. Meanwhile, the in-vehicle data analysis apparatus according to the present embodiment may further include an accident analysis information transmission display unit 150 , and the accident analysis information transmission display unit 150 provides accident analysis information derived through data analysis as described above. can be transmitted and displayed to a telematics device in the vehicle. In this case, the accident analysis information may include an accident occurrence location, a damaged part, a degree of damage, and the like.

In addition, the in-vehicle data analysis apparatus according to the present embodiment may further include a call command message transmission unit 160, and the call command message transmission unit 160 determines that driving is impossible depending on the damaged part or the degree of damage. In this case, a call command message may be transmitted to a preset insurance company. Accordingly, even if the driver does not directly take action according to the occurrence of the accident, the call command message transmission unit 160 of the in-vehicle data analysis device determines that driving is impossible depending on the damaged part or the degree of damage, A message can be sent to the insurance company to automatically proceed with the accident handling.

As described above, when a traffic accident occurs, the data analysis determination unit 140 is configured to detect whether it is due to a malfunction of the vehicle or inexperienced driving of the driver, or to malicious acts (manipulation by penetrating the control system) from the outside. Since it is possible to determine whether the vehicle is caused by the accident, it is possible to check the security of communication inside the vehicle and to analyze the cause of the accident more accurately when a traffic accident occurs.

Meanwhile, although not shown, the configurations of the in-vehicle data analysis apparatus as described above may be controlled by On-Board Diagnostics (OBD). For example, the OBD may be mounted inside a vehicle to receive, analyze, and diagnose information generated within the vehicle. In addition, the OBD may analyze information and perform vehicle diagnosis based on information on major systems of the vehicle or information such as failures. In general, OBD is a term used in the automobile industry, and in recently produced vehicles, sensor information from various sensors for measurement and control, such as an impact sensor, a temperature sensor, a pressure sensor, an acceleration sensor, a tire pressure sensor, a climate sensor, etc. receive These sensors are controlled by the ECU. These ECUs were originally intended to precisely control the engine’s core functions such as ignition timing, fuel injection, variable valve timing, idle, and limit value setting. It can control all parts of the vehicle, such as the system and steering system. Accordingly, the OBD terminal may obtain and detect driving information such as mileage, RPM, speed, fuel efficiency, battery voltage, coolant exchange, and idle time from the ECU in addition to sensor information.

6 is a schematic flowchart of a method for analyzing in-vehicle data according to an embodiment of the present invention.

Referring to FIG. 6 , first, information generated in the driving process of the vehicle is collected from the sensor module installed for each electric field inside the vehicle ( S610 ).

Next, information is received and collected from the sensor module (S620). In this case, the collected information may be information collected when an analysis is required for the occurrence and/or security of a vehicle accident.

Next, it is connected to a communication network between the electronic control units to collect data for analysis (S630). In this case, when the manipulated data changed due to external intrusion through external network communication exists in the data collected in step S630 described above, information of the electronic control unit including the manipulated data may be transmitted to the display device in the vehicle. On the other hand, the electronic control unit includes an engine control module (ECM), a smart junction box (SJB), a smart key module (SMK), an electric field control module (BCM), a cluster (CLU), a vehicle information system (IVI), and a motor driving power. Steering (MDPS) may be included. In addition, the communication network may be any one of CAN, FlexRay, MOST, and LIN.

Methods according to an embodiment of the present invention may be implemented as an application or implemented in the form of program instructions that may be executed through various computer components and recorded in a computer-readable recording medium. The computer-readable recording medium may include program instructions, data files, data structures, and the like alone or in combination. The program instructions recorded in the computer-readable recording medium are specially designed and configured for the present invention, and may be known and used by those skilled in the art of computer software. Examples of the computer-readable recording medium include hard disks, magnetic media such as floppy disks and magnetic tapes, optical recording media such as CD-ROMs and DVDs, and magneto-optical media such as floppy disks. media) and hardware devices specially configured to store and execute program instructions such as ROM, RAM, flash memory, and the like. Examples of program instructions include not only machine language codes such as those produced by a compiler, but also high-level language codes that can be executed by a computer using an interpreter or the like. The hardware device may be configured to operate as one or more software modules to perform the processing according to the present invention, and vice versa.

While this specification includes many features, such features should not be construed as limiting the scope or claims of the invention. In addition, features described in separate embodiments of the present specification may be combined and implemented in a single embodiment. Conversely, various features described in a single embodiment of the present specification may be individually implemented in various embodiments, or may be properly combined and implemented.

Although acts are described in a specific order in the drawings, it should not be understood that such acts are performed in the specific order as shown, or that all of the described acts are performed in a continuous order, or to obtain a desired result. Multitasking and parallel processing can be advantageous in certain circumstances. In addition, it should be understood that the division of various system components in the above-described embodiments does not require such division in all embodiments. The app components and systems described above may generally be implemented as a package in a single software product or multiple software products.

The present invention described above, for those of ordinary skill in the art to which the present invention pertains, various substitutions, modifications and changes are possible within the scope of the technical spirit of the present invention. It is not limited by the drawings.

110: sensor module
120: electronic control unit
130: data collection unit
140: data analysis decision unit
150: accident analysis information transmission display unit
160: call command message transmission unit

Claims (14)

a sensor module installed for each electric field inside the vehicle to collect information generated during the driving process of the vehicle;
an electronic control unit (ECU) that receives and collects information from the sensor module and controls an electric field of a vehicle equipped with the sensor module; and
A data collection unit connected to the communication network between the electronic control units to collect data for analysis;
The data collection unit,
When there is manipulated data changed due to external intrusion through external network communication in the collected data, information of the electronic control unit including the manipulated data is transmitted to the display device in the vehicle so that the user can intuitively recognize it. In-vehicle data analysis device, characterized in that. The method of claim 1,
The electronic control unit,
Engine Control Module (ECM), Smart Junction Box (SJB), Smart Key Module (SMK), Electronic Control Module (BCM), Cluster (CLU), Vehicle Information System (IVI), Motor Driven Power Steering (MDPS) In-vehicle data analysis device, characterized in that. The method of claim 1,
the communication network,
In-vehicle data analysis device, characterized in that it is an internal network communication protocol of any one of CAN, FlexRay, MOST, and LIN. The method of claim 1,
When an accident occurs during the driving process, the data analysis determiner to analyze and determine the collected data to derive accident analysis information; Vehicle in-vehicle data analysis device comprising a further comprising. The method of claim 4,
The in-vehicle data analysis apparatus further comprising a; accident analysis information transmission display unit for transmitting and displaying the accident analysis information derived through the data analysis to the telematics device in the vehicle. The method of claim 5,
The accident analysis information is
Vehicle internal data analysis device, characterized in that it includes at least any one of an accident location, a damaged area, and a degree of damage. The method of claim 6,
The in-vehicle data analysis device further comprising a; when it is determined that driving is impossible according to the damaged part or the degree of damage, a call command message transmitter for transmitting a call command message to a preset insurance company. In the vehicle interior data analysis method in the vehicle interior data analysis apparatus,
Collecting information generated in the driving process of the vehicle from a sensor module installed for each electric field inside the vehicle;
receiving and collecting information from the sensor module;
It is connected to a communication network between the electronic control units and collects data for analysis;
Collecting data for the analysis includes:
and transmitting information of an electronic control unit including the manipulated data to a display device in the vehicle when there is manipulated data changed due to external intrusion through external network communication in the collected data. How to analyze in-vehicle data. The method of claim 8,
The electronic control unit,
Engine Control Module (ECM), Smart Junction Box (SJB), Smart Key Module (SMK), Electronic Control Module (BCM), Cluster (CLU), Vehicle Information System (IVI), Motor Driven Power Steering (MDPS) In-vehicle data analysis method, characterized in that. The method of claim 8,
the communication network,
In-vehicle data analysis method, characterized in that it is an internal network communication protocol of any one of CAN, FlexRay, MOST, and LIN. The method of claim 8,
When an accident occurs in the course of driving, analyzing and determining the collected data to derive accident analysis information; The method for analyzing data inside a vehicle further comprising: a. The method of claim 11,
Transmitting the accident analysis information derived through the data analysis to a telematics device in the vehicle to display the; The method of claim 12,
The accident analysis information is
A vehicle internal data analysis method, characterized in that it includes at least one of an accident location, a damaged area, and a degree of damage. The method of claim 13,
and transmitting a call command message to a preset insurance company when it is determined that driving is impossible depending on the damaged part or the degree of damage.

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