公开(公告)号：US20230007033A1

公开(公告)日：2023-01-05

申请号：US17851118

申请日：2022-06-28

Applicant: DENSO CORPORATION

Inventor： Reiichiro IMOTO ,  Masumi EGAWA

IPC: H04L9/40

Abstract: An attack analyzer includes: a security log acquisition unit acquiring a security log including an abnormality detection signal generated by a security sensor mounted on an electronic control device constituting an electronic control system and indicating that the security sensor has detected an abnormality; a failure information acquisition unit acquiring failure information indicating a failure occurred in the electronic control device; a prediction table storage unit storing a prediction table showing a correspondence relationship between a predicted attack route in the electronic control system and a predicted abnormality detection signal predicted to be generated by the security sensor; an attack route estimation unit; and an attack information output unit outputting attack information indicating the attack route.

公开(公告)号：US20220017041A1

公开(公告)日：2022-01-20

申请号：US17371146

申请日：2021-07-09

Applicant: DENSO CORPORATION

Inventor： Reiichirou IMOTO ,  Takeshi SUGASHIMA ,  Masumi EGAWA

IPC: B60R25/20 ,  G08B13/22 ,  B60R25/30

Abstract: An unauthorized intrusion prevention device is provided that, in response to detection of abnormality in an electronic control device mounted in a movable body, gives an instruction for executing measures for the movable body. The unauthorized intrusion prevention device acquires first information related to a protection function of the electronic control device and second information related to a function of the electronic control device other than the protection function. The unauthorized intrusion prevention device, using the first information, performs a first determination of whether the protection function is normal. The unauthorized intrusion prevention device, using the second information, performs a second determination of whether the function other than the protection function is normal or abnormal. The unauthorized intrusion prevention device, using results of first and second determination, determines as the measures a blocking method of blocking unauthorized information in the movable object.

公开(公告)号：US20180158323A1

公开(公告)日：2018-06-07

申请号：US15646879

申请日：2017-07-11

Applicant: DENSO CORPORATION

Inventor： Kazuhito TAKENAKA ,  Kenji MUTO ,  Masumi EGAWA ,  Seiichi FURUTA

IPC: G08G1/01 ,  H04N7/18 ,  G06K9/00 ,  H04N5/77

CPC classification number: G08G1/0112 ,  G06K9/00744 ,  G06K9/00771 ,  G06K9/00805 ,  G08G1/0129 ,  G08G1/0141 ,  G08G1/096716 ,  G08G1/096741 ,  G08G1/096775 ,  H04N5/77 ,  H04N7/183 ,  H04N9/8042

Abstract: In an anomaly detection apparatus mounted in a vehicle, a model storage stores a driving model which is set corresponding to a travel location of the vehicle traveling on a roadway and represents a normal driving state as the vehicle is traveling at the travel location. A data acquirer acquires driving performance data representing the driving state of the vehicle. A degree-of-anomaly calculator calculates a degree of anomaly in the driving state based on the driving model stored in the model storage and the driving performance data acquired by the data acquirer. A vehicle-mounted transmitter, if the degree of anomaly calculated by the degree-of-anomaly calculator exceeds an anomaly determination value for determining the presence of an anomaly in the driving state, transmits at least the degree of anomaly and the travel location corresponding to the degree of anomaly to a monitoring center located external to the vehicle and detects an anomaly in the road condition based on the degree of anomaly.

公开(公告)号：US20180018871A1

公开(公告)日：2018-01-18

申请号：US15646867

申请日：2017-07-11

Applicant: DENSO CORPORATION

Inventor： Kazuhito TAKENAKA ,  Masumi EGAWA ,  Utsushi SAKAI ,  Kentaro HITOMI ,  Yuki SHINOHARA ,  Hideaki MISAWA ,  Masataka MORI

IPC: G08G1/0962 ,  G07C5/02 ,  G08G1/01

CPC classification number: G08G1/0962 ,  G07C5/02 ,  G08G1/0112 ,  G08G1/0129 ,  G08G1/096716 ,  G08G1/096741 ,  G08G1/096775

Abstract: In a driving assist system, a driving evaluator compares a driving feature data item sampled at each predetermined sampling point and obtained from a target vehicle with historical driving data items for the corresponding sampling point. The driving evaluator obtains, based on a result of the comparison, an evaluation value of the driving feature data item for the target vehicle at each predetermined sampling point. An unusual driving determiner obtains a cumulative sum of selected values in the evaluation values of the driving feature data items for the target vehicle. The unusual driving determiner determines whether the cumulative sum is larger than a predetermined threshold, and determines that driving of a driver of the target vehicle is unusual upon determining that the cumulative sum is larger than the predetermined threshold.

公开(公告)号：US20230007034A1

公开(公告)日：2023-01-05

申请号：US17851145

申请日：2022-06-28

Applicant: DENSO CORPORATION

Inventor： Ryosuke MURAKAMI ,  Reiichiro IMOTO ,  Masumi EGAWA

IPC: H04L9/40

Abstract: An attack analyzer includes: a security log acquisition unit acquiring a security log including an abnormality detection signal generated by a security sensor mounted on an electronic control device constituting part of an electronic control system and indicating that the security sensor has detected an abnormality; an alive signal acquisition unit acquiring an alive signal; a prediction table storage unit storing a prediction table showing a correspondence relationship between a predicted attack route in the electronic control system and a predicted abnormality detection signal predicted to be generated by the security sensor; an attack route estimation unit estimating, using the prediction table, the attack route of an attack received by the electronic control system from the abnormality detection signal and the alive signal included in the security log; and an attack information output unit outputting attack information indicating the attack route.

公开(公告)号：US20200312060A1

公开(公告)日：2020-10-01

申请号：US16827772

申请日：2020-03-24

Applicant: DENSO CORPORATION

Inventor： Takahiro SHIDAI ,  Masumi EGAWA ,  Keita HAYAKAWA ,  Toru HASEGAWA ,  Naoya ISHIDA

IPC: G07C5/08 ,  H04L29/08 ,  H04L12/26 ,  H04L12/66 ,  H04L12/40

Abstract: A message monitoring system includes a first electronic control unit and a second electronic control unit connected to the first electronic control unit via a communication network. In the first electronic control unit, a first message is generated; a first feature value representing a feature of the first message is calculated; a second message storing the first feature value is generated; and the first message is transmitted whereas the second message is transmitted periodically. In the second electronic control unit, the first message and the second message are received from the first electronic control unit; a second feature value representing a feature of the received first message is calculated; and a comparison is performed between (i) the first feature value stored in the received second message and (ii) the calculated second feature value; and whether the first message is normal is determined based on a result of the comparison.

公开(公告)号：US20140334719A1

公开(公告)日：2014-11-13

申请号：US14271543

申请日：2014-05-07

Applicant: DENSO CORPORATION

Inventor： Kazuhito TAKENAKA ,  Takashi BANDO ,  Hossein TEHRANI NIKNEJAD ,  Masumi EGAWA

IPC: G06K9/62 ,  G06K9/46

CPC classification number: G06K9/00369 ,  G06K9/00805 ,  G06K9/629

Abstract: In an object identification device, each score calculator extracts a feature quantity from the image, and calculates a score using the extracted feature quantity and a model of the specified object. The score represents a reliability that the specified object is displayed in the image. A score-vector generator generates a score vector having the scores as elements thereof. A cluster determiner determines, based on previously determined clusters in which the score vector is classifiable, one of the clusters to which the score vector belongs as a target cluster. An object identifier identifies whether the specified object is displayed in the image based on one of the identification conditions. The one of the identification conditions is previously determined for the target cluster determined by the cluster determiner.

Abstract translation: 在对象识别装置中，每个乐谱计算器从图像中提取特征量，并使用所提取的特征量和指定对象的模型来计算得分。 分数表示指定对象在图像中显示的可靠性。 得分向量生成器生成具有得分作为其分数的分数向量。 集群确定器基于先前确定的分数向量可分类的集群来确定分数矢量所属于的集群之一作为目标集群。 对象标识符基于识别条件之一来识别指定对象是否显示在图像中。 先前确定由群集确定器确定的目标群集的识别条件之一。

公开(公告)号：US20250045396A1

公开(公告)日：2025-02-06

申请号：US18776308

申请日：2024-07-18

Applicant: DENSO CORPORATION

Inventor： Keigo NAGARA ,  Taiji ABE ,  Tomonori IKUSE ,  Keita HAYAKAWA ,  Masumi EGAWA

IPC: G06F21/56

Abstract: An attack analysis device stores attack abnormality relationship information indicating a relationship among (i) predicted attack information indicating an attack predicted to be received by an electronic control system, (ii) predicted abnormality information indicating an abnormality predicted to occur in response to the predicted attack, and (iii) predicted abnormality location information indicating a location within the electronic control system where the predicted abnormality occurs. The attack analysis device is configured to: acquire a security log indicating an abnormality detected in the electronic control system and a detection location of the abnormality in the electronic control system; estimate the attack based on the security log and the attack abnormality relationship information; analyze an estimation accuracy of the attack based on context data included in the security log; and output attack information, which indicates the estimated attack, and estimation accuracy information, which indicates the estimation accuracy of the attack.

公开(公告)号：US20230156027A1

公开(公告)日：2023-05-18

申请号：US18151680

申请日：2023-01-09

Applicant: DENSO CORPORATION

Inventor： Takeshi SUGASHIMA ,  Masumi EGAWA

IPC: H04L9/40

CPC classification number: H04L63/1425 ,  H04L63/1416

Abstract: A log management device includes a log collection unit configured to receive a log generated by a security sensor, a storage unit configured to store the log, a statistical analysis unit configured to obtain a statistical calculation result by performing statistical analysis on a plurality of the logs, a control unit configured to determine which of the log and the statistical calculation result is to be sent according to a predetermined condition, and a transmission unit configured to transmit at least one of the log or the statistical calculation result according to the predetermined condition.

公开(公告)号：US20160140779A1

公开(公告)日：2016-05-19

申请号：US14940190

申请日：2015-11-13

Applicant: DENSO CORPORATION

Inventor： Kazuhito TAKENAKA ,  Takashi BANDO ,  Masumi EGAWA

IPC: G07C5/00

CPC classification number: G07C5/008 ,  G07C5/0816

Abstract: A drive data collection system includes an in-vehicle system and an information center. The in-vehicle system includes a data collector that repeatedly collects measurement values indicative of various indexes regarding a state of a subject vehicle, a model memory that memorizes model information regarding discretization rules that are shared by each of participating vehicles in the system, and a data discretizer that discretizes drive data, which includes time-series measurement values collected by the data collector, into multiple data parts according to the model information. The information center includes a data accumulator that accumulates the discretized drive data in a server. The in-vehicle system sends the discretized drive data to the information center through a communicator. Therefore, the drive data collection system efficiently collects the drive data in a versatilely-utilizable manner for the analysis of general driving practices/behaviors.

Abstract translation: 驱动数据收集系统包括车载系统和信息中心。 车载系统包括数据收集器，其重复地收集指示关于本车辆的状态的各种指标的测量值，存储关于系统中每个参与车辆共享的离散规则的模型信息的模型存储器，以及 数据离散化器，其将包括由数据收集器收集的时间序列测量值的驱动数据根据型号信息离散化成多个数据部分。 信息中心包括一个数据累加器，用于在服务器中累加离散的驱动数据。 车载系统通过通信器将离散的驱动数据发送到信息中心。 因此，驱动数据收集系统以通用的方式有效地收集驱动数据，以便分析一般驾驶习惯/行为。