JP6227043B2 - Log collection system and vehicle equipped with the same - Google Patents

Description

  The present invention relates to a log collection system for collecting and recording communication log data and vehicle information log data in a vehicle performing wireless communication, and a vehicle equipped with the log collection system.

  A vehicle such as an automobile uses a wireless communication device to communicate with a server through a wireless communication system such as 3G or 4G and a mobile phone network, and to send and receive e-mails, weather forecasts and traffic information (telematics) Service). Further, the vehicle can receive an ITS (Intelligent Transport System) service through wireless communication of a wireless communication standard such as DSRC (Dedicated Short Range Communication) ETC2.0 or IEEE802.11p using a wireless communication device. In addition, a vehicle can receive a cooperation service between a brought-in device and an in-vehicle system through wireless communication of a communication standard such as IEEE 802.11a, b, g, n, ac or Bluetooth (registered trademark) using a wireless communication device.

  However, since the wireless communication device can be accessed remotely, there is a possibility of receiving unauthorized communication from outside the vehicle. If sufficient countermeasures are not taken for such communication, there is a possibility of causing an unexpected operation in the in-vehicle system and causing an accident. In order to detect and invalidate such unauthorized communication, it is necessary to analyze communication patterns and add appropriate countermeasures to the in-vehicle system. In developing this countermeasure, it is necessary to reproduce the communication pattern, investigate the cause of the unexpected operation of the in-vehicle system, and verify the effectiveness of the countermeasure. For this purpose, it is required to collect communication log data and vehicle information data.

  Therefore, for example, in the log analysis device of Patent Document 1, log information and traffic information output from a communication device included in the network are extracted and analyzed according to a predetermined rule to detect unauthorized access. And a method for determining importance.

  Further, in the unauthorized access information collection system of Patent Document 2, a packet for unauthorized access in a wide range of address space is monitored and unauthorized by an unauthorized access information collection device that routes to a plurality of honeypots and honeypots. A method for collecting access information is disclosed.

WO2014 / 119669 JP 2008-172548 A

However, in the conventional technology, in a case where illegal communication locally occurs at a specific position using short-range radio such as DSRC, IEEE802.11a, b, g, n, ac, or Bluetooth (registered trademark), Since unauthorized communication does not reach the log collection device, there is a problem that communication log data cannot be collected. In addition, since the in-vehicle system has different configurations of wireless communication devices and vehicle control devices depending on the vehicle type, there is a problem that communication log data including behavior of the system against unauthorized communication due to the difference in configuration cannot be collected. .

  The present invention has been made to solve the above-described problem, and a log collection system capable of collecting communication log data even for local communication at a specific position by short-range wireless, and It aims to provide a vehicle equipped with it.

In order to solve the above problems, a log collection system according to the present invention is mounted on a vehicle, generates a communication log message from wireless communication data received from the outside, and transmits the communication log message, and the vehicle And a gateway device for generating and sending vehicle information log messages from vehicle information of a vehicle control device connected to an in-vehicle network, collecting the communication log message and the vehicle information log message, and A log collection device that generates communication log data and vehicle information log data from the communication log message and the vehicle information log message, respectively, and records them in a storage device; software processing of the vehicle control device; and communication processing of the wireless communication device In addition, the configuration of the vehicle control device is changed by software. And a simulation vehicle control device that generates a simulation vehicle control log message from the software processing and the communication processing and sends the message to the log collection device .

  Further, the vehicle according to the present invention is equipped with the log collection system.

  According to the log collection system and the vehicle of the present invention, the communication log message and the vehicle information log message by the wireless communication device are collected by installing the log collection device that collects the communication log message, and the communication log data and the vehicle information log are collected. It is possible to record data, and it is created as a verification and countermeasure against abnormal operation by using the in-vehicle system for verification separately and recorded communication log data to cause the vehicle to cause abnormal operation when receiving the communication There is an effect that the software can be verified.

1 is a block diagram showing an overall configuration of an in-vehicle network system including a log collection system according to Embodiment 1. FIG. 1 is a block diagram illustrating a configuration of a log collection device in Embodiment 1. FIG. 1 is a block diagram illustrating a configuration of a wireless communication device in Embodiment 1. FIG. 2 is a block diagram showing a configuration of a gateway device in Embodiment 1. FIG. 6 is a diagram illustrating a format of a log message in the first embodiment. FIG. FIG. 6 is a diagram illustrating log message IDs and log data contents according to the first embodiment. 4 is a flowchart showing a processing procedure for generating and sending a communication log message from communication data by the wireless communication apparatus in the first embodiment. 4 is a flowchart showing a processing procedure for generating and sending a vehicle information log message from vehicle information by the gateway device in the first embodiment. 4 is a flowchart illustrating a processing procedure for recording communication log data and vehicle information log data by the log collection device according to the first embodiment. It is a block diagram which shows the whole structure of the vehicle-mounted network system containing the log collection system which concerns on Embodiment 2. FIG. 10 is a block diagram illustrating a configuration of a log collection device according to Embodiment 2. FIG. 6 is a block diagram illustrating a configuration of a wireless communication apparatus according to Embodiment 2. FIG. FIG. 6 is a block diagram illustrating a configuration of a simulated vehicle control device in a second embodiment. FIG. 6 is a block diagram showing a configuration of a simulated vehicle control unit in a second embodiment. 10 is a flowchart illustrating a procedure for recording various log data by the log collection device according to the second embodiment. 10 is a flowchart showing a procedure for generating and sending a simulated vehicle control log message by the simulated vehicle control apparatus in the second embodiment. 6 is a block diagram illustrating a configuration of a simulated in-vehicle network system that is simulated by a simulated vehicle control device in Embodiment 2. FIG. It is a block diagram which shows the whole structure of the vehicle-mounted network system which substituted the simulation vehicle-mounted network system in Embodiment 2 by the actual apparatus.

  Hereinafter, the configuration and operation of the log collection system according to the embodiment of the present invention will be described in detail with reference to FIGS.

Embodiment 1 FIG.
1 is a block diagram showing an overall configuration of an in-vehicle network system including a log collection system according to Embodiment 1, FIG. 2 is a block diagram showing a configuration of a log collection device, and FIG. It is a block diagram which shows the structure of an apparatus.

  First, the overall configuration of the in-vehicle network system 1 including the log collection system according to the first embodiment will be described with reference to FIG. The log collection system 100 mounted on the vehicle generates a communication log message from the received communication data by transmitting and receiving communication data wirelessly, and the vehicle control devices 112a, 112b,. Is connected to the vehicle-mounted network 110 for exchanging vehicle information of the vehicle control devices 112a, 112b,..., 112n, and a vehicle information log message is generated from the vehicle information, and vehicle information and operation information are externally transmitted The gateway device 111 converts the protocol into a protocol corresponding to the communication and sends it out, and the log collection device 101 that collects communication log messages and vehicle information log messages and records them in a storage device.

  The log collection device 101 collects communication log messages and vehicle information log messages received from the wireless communication device 102 and the gateway device 111 and records them in a storage device built in as communication log data and vehicle information log data.

  The wireless communication device 102 communicates with a wireless communication device installed on the other vehicle or road side in accordance with a communication standard for in-vehicle communication such as IEEE802.11a, b, g, n, ac, DSRC, ETC, 3G, 4G, Communication with a server on the Internet through communication with a mobile phone network such as PHS, or communication with a computer such as a smartphone or tablet in the vehicle by short-range wireless communication such as IEEE802.11a, b, g, n, ac or Bluetooth (registered trademark) It is a device that performs communication, generates a communication log message including communication information, and sends it to the log collection device 101. Communication is performed using one or more communication standards (protocols). The wireless communication device 102 may be composed of a plurality of communication devices. The communication standard used is not limited to the above.

  The in-vehicle network 110 is a network in the vehicle in which the gateway device 111 and the vehicle control devices 112a, 112b,..., 112n are connected by a network cable 113 and exchange vehicle information. The configuration in the in-vehicle network 110 shown in FIG. 1 is an example, and the configuration is not limited to this configuration.

  The gateway device 111 is a device that performs protocol conversion for performing communication between the in-vehicle network 110 and the outside. The gateway device 111 appropriately converts the vehicle information and the operation information exchanged on the in-vehicle network 110 to convert the wireless communication device 102. The vehicle information log message including the vehicle information is generated and transmitted to the log collection device 101.

  The vehicle control devices 112a, 112b,..., 112n are ECUs (Electronic Control Units) that perform vehicle travel control including engine control, and are control devices such as transmission control and brake control in addition to engine control. .

Next, the configuration of the log collection device 101 will be described with reference to FIG.
The log collection device 101 includes a communication device, an arithmetic processing device, and a storage device, and functionally includes a communication unit 201, a storage unit 202, a log recording control unit 203, a communication log recording unit 204, and a vehicle information log record. Divided into part 205. The arithmetic processing unit is constituted by a CPU, and the storage device is constituted by a flash memory or a hard disk. The same applies to other devices described below.

  The communication unit 201 functions as an interface for receiving communication log messages and vehicle information log messages from the wireless communication device 102 and the gateway device 111 by the communication device. It has a plurality of ports according to the number of devices to be connected.

  The storage unit 202 is configured by a storage device, and stores a log recording program that performs recording control of log data.

  The log recording control unit 203 uses a log recording program stored in the storage unit 202 by an arithmetic processing device such as a CPU to analyze IDs of log messages received from the wireless communication device 102 and the gateway device 111, and Control of assigning time information to the distribution of the communication log message from the wireless communication device 102 or the vehicle information log message from the gateway device 111 and the vehicle position information, and recording the information as communication log data and vehicle information log data Is to do.

  The communication log recording unit 204 generates communication log data from the communication log message distributed by the log recording control unit 203 by an arithmetic processing unit and records it in a storage device.

  The vehicle information log recording unit 205 generates vehicle information log data from the vehicle information log message distributed by the log recording control unit 203 by an arithmetic processing device and records the vehicle information log data in a storage device. Here, the storage devices of the communication log recording unit 204 and the vehicle information log recording unit 205 may be shared with the storage device of the storage unit 202, or may be provided separately.

Next, the configuration of the wireless communication apparatus 102 will be described with reference to FIG.
The wireless communication device 102 includes a wireless communication device, an arithmetic processing device, a storage device, and a communication device. Functionally, the wireless communication unit 301, the storage unit 302, the communication control unit 303, the communication log generation unit 304, and It is divided into a communication log output unit 305.

  The wireless communication unit 301 includes a communication circuit that wirelessly transmits / receives communication data to / from the outside, and a conversion processing circuit that modulates received data, converts the data into digital data, and transmits the digital data.

  The storage unit 302 includes a storage device, and stores a communication control program that performs communication control and a communication log message generation program that generates a communication log message.

  The communication control unit 303 performs analysis processing on the content of the received communication data using the communication control program stored in the storage unit 302 by the arithmetic processing unit. Here, it may be set so that data other than that addressed to the host vehicle can be acquired by a promiscuous mode.

  The communication log generation unit 304 processes the received communication data and generates a communication log message using a communication log message generation program stored in the storage unit 302 by the arithmetic processing unit.

  The communication log output unit 305 transmits a communication log message to the log collection device 101 using a predetermined communication interface by the communication device.

An example of the configuration of the gateway device 111 will be described with reference to FIG.
The gateway device 111 includes a communication device, an arithmetic processing device, and a storage device, and functionally includes a communication unit 401, a storage unit 402, a gateway control unit 403, a vehicle information log generation unit 404, and a vehicle information log output unit. 405.

  The communication unit 401 functions as an interface for receiving vehicle information from the vehicle control devices 112a, 112b,.

  The storage unit 402 includes a storage device, and stores a message conversion program that converts and controls a message into a predetermined message and a vehicle information log message generation program that generates a vehicle information log message.

  The gateway control unit 403 uses the message conversion program stored in the storage unit 402 by the arithmetic processing device to message the vehicle information received from the vehicle control devices 112a, 112b,..., 112n by a predetermined method. And a control for sending out the converted vehicle information message.

  The vehicle information log generation unit 404 uses the log processing program stored in the storage unit 402 to process the vehicle information message acquired by the gateway control unit 403 and generate a vehicle information log message. Is. Here, an ID corresponding to the vehicle information is given. The vehicle information is, for example, vehicle speed information, engine speed information, gear position information, shift position information, rudder angle information, accelerator opening information, and peripheral sensor information. The vehicle information is not limited to the information described here, but may be information that can be acquired by in-vehicle communication or an in-vehicle sensor. Further, the vehicle information may be accumulated and statistically processed before being processed into a vehicle information log message.

  The vehicle information log output unit 405 transmits a vehicle information log message to the log collection device 101 using a predetermined communication interface by a communication device.

  FIG. 5 shows an exemplary format of the log message 500. The log message 500 includes an ID part 501 and a data part 502. The ID part 501 is an area in which an ID number indicating the type of data of log information included in the log message 500 is stored, and the data part 502 is an area in which log data recorded as log information is stored. is there.

FIG. 6 shows an example of the correspondence between the ID number of the log message 500 and the contents of the log data. Examples of ID numbers are shown below.
ID1: Communication packet ID2 received by the wireless communication device 102: Vehicle information (vehicle speed information)
ID3: Vehicle information (steering angle)
...

  Next, referring to a flowchart showing a processing procedure for generating and sending a communication log message from communication data by the wireless communication device shown in FIG. 7, the wireless communication device 102 generates a communication log message from the communication data, and a log collection device The processing procedure sent to 101 will be described.

  First, in step S701, the wireless communication unit 301 receives wireless communication data using a wireless communication device, and converts it into predetermined digital data. Thereafter, the communication control unit 303 sends the digital data to the communication log generation unit 304 regardless of the destination in order to record the communication data by the arithmetic processing unit.

  Next, in step S702, the communication log generation unit 304 generates a communication log message corresponding to the above-described format using the communication log message generation program stored in the storage unit 302 by the arithmetic processing device. The data is sent to the output unit 305.

  Finally, in step S703, the communication log output unit 305 sends a communication log message to the log collection device 101 using a predetermined communication interface by the communication device.

  Subsequently, referring to a flowchart showing a processing procedure for generating and sending a vehicle information log message from the vehicle information by the gateway device shown in FIG. 8, the gateway device 111 generates a vehicle information log message from the vehicle information, and a log collecting device The processing procedure sent to 101 will be described.

  First, in step S801, the communication unit 401 receives vehicle information from the vehicle control devices 112a, 112b,..., 112n connected to the in-vehicle network 110 through the communication device, performs amplification, demodulation, etc., and performs digital data Convert to

  Next, in step S802, the gateway control unit 403 interprets the converted digital data message by the arithmetic processing unit, and performs message format conversion processing according to the type of the message. At this time, vehicle information is extracted according to the type of message of the digital data, stored or statistically processed, and the vehicle information message is stored in the storage unit 402 of the gateway device 111.

  Further, in step S803, the vehicle information log generation unit 404 determines whether a predetermined transmission trigger is generated by the arithmetic processing unit. At this time, the trigger is generated when the change value of the cycle timer or the vehicle information exceeds a threshold value. Of course, other conditions may be used. If a trigger has occurred, the process proceeds to the next step S804. If a trigger has not occurred, the process returns to step S801.

  Subsequently, in step S804, the vehicle information log generation unit 404 generates a vehicle information log message from the vehicle information message using the vehicle information log message generation program stored in the storage unit 402 by the arithmetic processing unit. Here, in the vehicle information log message, vehicle information can be identified by an ID, and one message may include a plurality of vehicle information. Further, the vehicle information may be a value acquired from the in-vehicle network 110 or a statistically processed value such as an average over a certain period.

  Finally, in step S805, the vehicle information log output unit 405 transmits a vehicle information log message to the log collection device 101 using a predetermined communication interface by the communication device.

  With reference to the flowchart showing the processing procedure for recording the communication log data and the vehicle information log data by the log collection device shown in FIG. 9, the log collection device 101 acquires the communication log message and the vehicle information log message, and the communication log data And the process sequence recorded as vehicle information log data is demonstrated.

  First, in step S901, the communication unit 201 acquires a communication log message and a vehicle information log message from the wireless communication device 102 and the gateway device 111 by the communication device.

  Next, in step S <b> 902, the log recording control unit 203 confirms the ID of the log message using the log determination program stored in the storage unit 202 by the arithmetic processing device, and the communication log from the wireless communication device 102. It is determined whether it is a message or a vehicle information log message from the gateway device 111. If the ID indicates that it is a communication log message, time information is added and the process proceeds to step S903. If the ID indicates a vehicle information log message, vehicle position information and time information are added, and the process proceeds to step S904.

  Subsequently, in step S <b> 903, the log recording control unit 203 generates communication log data from the communication log message by the arithmetic processing device and stores the communication log data in the storage device of the communication log recording unit 204.

  In step S <b> 904, the log recording control unit 203 generates vehicle information log data from the vehicle information log message by the arithmetic processing device, and stores it in the storage device of the vehicle information log recording unit 205.

  As described above, according to the log collection system according to the first embodiment, the communication log message by the wireless communication device configured according to the vehicle type of the assumed vehicle by mounting the log collection device for verifying the log. And vehicle information log messages can be collected and recorded as communication log data and vehicle information log data, and recorded separately using the in-vehicle network system for verification and the recorded communication log data and vehicle information log data. There is an effect that it is possible to verify whether or not an abnormal operation is caused in the vehicle when the communication log data is received.

Embodiment 2. FIG.
FIG. 10 is a block diagram showing the overall configuration of the in-vehicle network system including the log collection system according to the second embodiment, FIG. 11 is a block diagram showing the configuration of the log collection device, and FIG. It is a block diagram which shows the structure of an apparatus. FIG. 13 is a block diagram illustrating a configuration of the simulated vehicle control device. FIG. 14 is a block diagram illustrating a functional configuration of the simulated vehicle control unit. The difference between the configuration of the log collection system according to the second embodiment and the configuration of the log collection system according to the first embodiment is that a simulated vehicle control device is added in the second embodiment. Other components are the same as those in the first embodiment.

  First, the overall configuration of the in-vehicle network system 2 including the log collection system according to the second embodiment will be described with reference to FIG. The log collection system 100 mounted on the vehicle generates a communication log message from the received communication data by transmitting and receiving communication data wirelessly, and the vehicle control devices 112a, 112b,. Is connected to the vehicle-mounted network 110 for exchanging vehicle information of the vehicle control devices 112a and 112b, a vehicle information log message is generated from the vehicle information, and the vehicle information and operation information is a protocol corresponding to communication with the outside. The gateway device 111 that converts and transmits the data, the communication data from the wireless communication device 102 and the vehicle information from the gateway device 111, the simulated vehicle control device 105 that transmits the simulated vehicle control log message, the communication log message, and the vehicle information Log messages and simulated vehicle control log messages A log collection device 101 records in the storage device as well as collecting di, in being configured.

  The log collection device 101 is the same as that of the first embodiment except that the simulation vehicle control log message received from the simulation vehicle control device 105 is collected and recorded in the storage device built in as simulation vehicle control log data. Therefore, description of other functions is omitted.

  The wireless communication device 102 is the same as that of the first embodiment except that a function for sending communication data is added to the simulated vehicle control device 105, and therefore, description of other functions is omitted.

  Since the in-vehicle network 110 is the same as that in the first embodiment, description of other functions is omitted.

  The gateway device 111 is the same as that of the first embodiment except that a function for sending vehicle information is added to the simulated vehicle control device 105, and thus the description of other functions is omitted.

  Since vehicle control devices 112a, 112b,..., 112n are the same as those in the first embodiment, description thereof is omitted.

Next, the configuration of the log collection device 101 will be described with reference to FIG.
The log collection device 101 includes a communication device, an arithmetic processing device, and a storage device. Functionally, the log collection device 101 includes a communication unit 201, a log recording control unit 203, a communication log recording unit 204, a vehicle information log recording unit 205, and a simulation. It is divided into a vehicle control log recording unit 206. The storage device includes a flash memory and a hard disk.

  The communication unit 201 functions as an interface for receiving communication log messages, vehicle information log messages, and simulated vehicle control log messages from the wireless communication device 102, the gateway device 111, and the simulated vehicle control device 105 by the communication device. is there. It has a plurality of ports according to the number of devices to be connected.

  Since the storage unit 202, the communication log recording unit 204, and the vehicle information log recording unit 205 are the same as those in the first embodiment, description thereof is omitted.

  The log recording control unit 203 uses the log recording program stored in the storage unit 202 by the arithmetic processing unit to obtain the IDs of the log messages received from the wireless communication device 102, the gateway device 111, and the simulated vehicle control device 105. Analyzing and sorting the communication log message from the wireless communication device 102, the vehicle information log message from the gateway device 111, or the simulated vehicle control log message from the simulated vehicle control device 105, and the vehicle position information Information is given and control which records as communication log data, vehicle information log data, and simulation vehicle control log data is performed.

  The simulated vehicle control log recording unit 206 simulates the software processing of the vehicle control devices 112a, 112b,..., 112n and the in-vehicle network 110 from the simulated vehicle control log message distributed by the log recording control unit 203 by the arithmetic processing device. The simulated vehicle control log data created in this way is generated and recorded in the storage device. Here, the storage devices of the communication log recording unit 204, the vehicle information log recording unit 205, and the simulated vehicle control log recording unit 206 may be shared with the storage device of the storage unit 202, or may be provided separately. .

Next, the configuration of the wireless communication apparatus 102 will be described with reference to FIG.
The wireless communication device 102 includes a wireless communication device, an arithmetic processing device, a storage device, and a communication device. Functionally, the wireless communication unit 301, the storage unit 302, the communication control unit 303, the communication log generation unit 304, It is divided into a communication log output unit 305 and a communication unit 306. Since the configuration other than the communication unit 306 provided for sending communication data to the simulated vehicle control device 105 is the same as that of the wireless communication device 102 of the first embodiment, the description thereof is omitted.

  The communication unit 306 transmits communication data to the simulated vehicle control device 105 using a predetermined communication interface by a communication device.

Furthermore, the configuration of the simulated vehicle control device 105 will be described with reference to FIG.
The simulated vehicle control device 105 includes a communication device, an arithmetic processing device, and a storage device, and functionally includes a communication unit 501, a storage unit 502, a simulated vehicle control unit 503, a simulated vehicle control log generation unit 504, and a simulation. It is divided into a vehicle control log output unit 505.

  The communication unit 501 functions as an interface for receiving vehicle information of the vehicle control devices 112a, 112b,..., 112n from the gateway device 111 by the communication device.

  As shown in FIG. 14, the simulated vehicle control unit 503 simulates communications in the simulated vehicle control processing units 512a and 512b and the in-vehicle network 110 by a simulated vehicle control program that functionally simulates the control of the vehicle control devices 112a and 112b. A simulated communication processing unit 511 based on a simulated communication program, a simulated device processing unit 513 based on a simulated device program that simulates the operation of various on-vehicle devices, and a simulated vehicle based on a simulated vehicle control base processing program that serves as a basis for executing these programs in an integrated manner The control base processing unit 510 is configured. In FIG. 14, the simulated vehicle control processing units 512a and 512b are used as an example of simulating two vehicle control devices, but different numbers of vehicle control devices may be used.

  The storage unit 502 includes a storage device, stores the program of the simulated vehicle control unit 503, and converts the simulated vehicle control message created by the processing by the simulated vehicle control processing program into a predetermined message. A simulated vehicle control log message generation program for generating a program and a simulated vehicle control log message is stored.

  The simulated vehicle control unit 503 uses the message conversion program stored in the storage unit 502 by the arithmetic processing unit to generate the simulated vehicle control message generated by the simulated vehicle control base processing program process by a predetermined method. In addition to performing conversion, control is performed to send out the converted simulated vehicle control message.

  The simulated vehicle control log generation unit 504 processes the simulated vehicle control message created by the simulated vehicle control processing program using the log message generation program stored in the storage unit 502 by the arithmetic processing unit, and simulates the simulated vehicle control log. A message is generated. Here, the corresponding ID is given by the simulated vehicle control processing program.

  The simulated vehicle control log output unit 505 sends a simulated vehicle control log message to the log collection device 101 using a predetermined communication interface by the communication device.

  Referring to the flowchart showing the procedure for recording various log data by the log collection device shown in FIG. 15, the log collection device 101 obtains the communication log message, the vehicle information log message, and the simulated vehicle control log message, and the communication log data The processing procedure recorded as vehicle information log data and simulated vehicle control log data will be described.

  First, in step S1501, the communication unit 201 acquires a communication log message, a vehicle information log message, and a simulated vehicle control log message from the wireless communication device 102, the gateway device 111, and the simulated vehicle control device 105 using a communication device.

  Next, in step S1502, the log recording control unit 203 confirms the ID of the log message using the log determination program stored in the storage unit 202 by the arithmetic processing device, and transmits the communication log from the wireless communication device 102. It is determined whether it is a message. If the ID indicates that it is a communication log message, time information is added and the process proceeds to step S1503. If it is not a communication log message, the process proceeds to step S1504.

  Subsequently, in step S1503, the log recording control unit 203 generates communication log data from the communication log message by the arithmetic processing device and stores the communication log data in the storage device of the communication log recording unit 204.

  Further, in step S1504, the log recording control unit 203 uses the log determination program stored in the storage unit 202 to check the ID of the log message by the arithmetic processing device, and the vehicle information log message from the gateway device 111. It is determined whether or not. If the ID indicates that it is a vehicle information log message, vehicle position information and time information are added, and the process proceeds to step S1505. If it is not a vehicle information communication log message, the process proceeds to step S1506.

  In step S <b> 1505, the log recording control unit 203 generates vehicle information log data from the vehicle information log message by the arithmetic processing device and stores the vehicle information log data in the storage device of the vehicle information log recording unit 205.

  In step S <b> 1506, the log recording control unit 203 generates simulated vehicle control log data from the simulated vehicle control log message by the arithmetic processing device and stores the simulated vehicle control log data in the storage device of the simulated vehicle control log recording unit 206.

  Referring to a flowchart showing a procedure for generating and sending a simulated vehicle control log message by the simulated vehicle control apparatus shown in FIG. 16, a process procedure for simulating an operation in a preset in-vehicle network system in simulated vehicle control apparatus 105 explain.

  First, in step S <b> 1601, it is confirmed whether or not the communication unit 501 has received a communication message from the wireless communication apparatus 102. If received, the process moves to step S1602. If not received, the process moves to step S1604.

  In step S1602, the connection relationship of the in-vehicle network 110 is confirmed using the simulated communication program of the simulated communication processing unit 511 by the simulated vehicle control platform processing program of the simulated vehicle control platform processing unit 510. The message is routed by the simulated vehicle control program of the simulated vehicle control processing units 512a and 512b of the vehicle control devices 112a and 112b to which the wireless communication device 102 is to be connected.

  In step S1603, when a wireless communication message is input to the in-vehicle network system 2, the simulated vehicle control log generation unit 504 uses the log message generation program stored in the storage unit 502 by the arithmetic processing unit to simulate the simulated vehicle. The control message is processed to generate a simulated vehicle control log message, and the simulated vehicle control log output unit 505 transmits the simulated vehicle control log message.

  In step S1604, software processing is performed by the simulated vehicle control program of the simulated vehicle control processing units 512a and 512b corresponding to the vehicle control devices 112a and 112b that have received communication or the vehicle control devices 112a and 112b that are periodically operated by software. .

  In step S1605, the software processing result by the simulated vehicle control program of the simulated vehicle control processing units 512a and 512b is used to display processing information that affects the operation of the software such as a communication request and memory change through the simulated device processing unit 513. Generate as a process message, and output and record a software process log message.

  As a result, communication log data for wireless communication and vehicle information log data for the vehicle control device according to the assumed vehicle configuration can be collected, and reproduction of abnormal operations and verification of software created as countermeasures for abnormal operations can be performed. There is an effect that can be performed.

FIG. 17 shows an example of the configuration of the in-vehicle network system 7 that is simulated by the simulated vehicle control device 105.
The head unit device 721 can be configured by a program that simulates the operation of software by the simulated vehicle control processing units 512a and 512b of the simulated vehicle control device 105. The gateway device 711 can be configured by a program that simulates the operation of software by the simulated vehicle control processing units 512a and 512b of the simulated vehicle control device 105. The vehicle control devices 712a and 712b can be configured by a program that simulates the operation of software by the simulated vehicle control processing units 512a and 512b of the simulated vehicle control device 105. The in-vehicle network 710 can be configured by a program that simulates a communication operation by the simulated communication processing unit 511 of the simulated vehicle control device 105.

  FIG. 18 shows the overall configuration of the in-vehicle network system 3 when a part of the in-vehicle network system 7 configured by the simulation program is realized by using an actual device without using the simulated vehicle control processing units 512a and 512b. FIG.

  An example in which the gateway device 711 and one vehicle control device 712a or 712b are realized by using an actual device will be described. The virtual head unit device 106 is a device for replacing the head unit device 721 with an actual device, and the virtual vehicle control device 107 is a device for replacing the vehicle control device 712a or 712b with an actual device. is there.

  As described above, according to the log collection system according to the second embodiment, software having the same functions as those of the first embodiment and the simulated vehicle control device is provided for the configuration of the assumed vehicle type. It is possible to cope with this change only, and it is possible to collect logs of communication, running information, and operation information data when an unauthorized access occurs for in-vehicle network system configurations of all vehicle types.

  In addition, by mounting the log collection system according to Embodiment 1 and Embodiment 2 on a vehicle, a communication log message and vehicle information by a wireless communication device with respect to access from outside by wireless communication in an actual vehicle. Log messages can be collected and recorded as communication log data and vehicle information log data. The communication log recorded using the in-vehicle network system for verification and the communication log data and vehicle information log data recorded separately. It is possible to verify whether or not an abnormal operation is caused to the vehicle when the data is received.

  Also, within the scope of the present invention, the embodiments can be freely combined, or the embodiments can be appropriately modified or omitted.

  Moreover, in the figure, the same code | symbol shows the same or an equivalent part.

  1, 2, 3, 7 In-vehicle network system, 100 log collection system, 101 log collection device, 102 wireless communication device, 105 simulated vehicle control device, 106 virtual head unit device, 107 virtual vehicle control device, 110 in-vehicle network, 111 gateway Devices 112a, 112b,..., 112n, vehicle control device, 201 communication unit, 202 storage unit, 203 log recording control unit, 204 communication log recording unit, 205 vehicle information log recording unit, 206 simulated vehicle control log recording unit, 301 wireless communication unit 302 storage unit 303 communication control unit 304 communication log generation unit 305 communication log output unit 306 communication unit 401 communication unit 402 storage unit 403 gateway control unit 404 vehicle information log generation unit 405 Vehicle information log output unit, 500 Message, 501 communication unit, 502 storage unit, 503 simulated vehicle control unit, 504 simulated vehicle control log generation unit, 505 simulated vehicle control log output unit, 510 simulated vehicle control base processing unit, 511 simulated communication processing unit, 512a, 512b Simulated vehicle control processing unit, 513 Simulated device processing unit, 710 In-vehicle network, 711 Gateway device, 712a, 712b Vehicle control device, 721 Head unit device

Claims (2)

A wireless communication device that is mounted on a vehicle, generates a communication log message from wireless communication data received from the outside, and sends out the communication log message;
A gateway device that is mounted on the vehicle and generates a vehicle information log message from vehicle information of a vehicle control device connected to an in-vehicle network, and sends out the vehicle information log message;
A log collection device that collects the communication log message and the vehicle information log message, generates communication log data and vehicle information log data from the communication log message and the vehicle information log message, respectively, and records them in a storage device;
It is possible to simulate software processing of the vehicle control device and communication processing of the wireless communication device, and to change the configuration of the vehicle control device by software, and to simulate vehicle control from the software processing and the communication processing. A log collection system comprising: a simulated vehicle control device that generates a log message and sends the log message to the log collection device . A vehicle on which the log collection system according to claim 1 is mounted.

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