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1. WO2018123692 - UNAUTHORIZED COMMUNICATION ESTABLISHMENT PREVENTING SYSTEM

Publication Number WO/2018/123692
Publication Date 05.07.2018
International Application No. PCT/JP2017/045330
International Filing Date 18.12.2017
IPC
H04Q 9/00 2006.01
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
QSELECTING
9Arrangements in telecontrol or telemetry systems for selectively calling a substation from a main station, in which substation desired apparatus is selected for applying a control signal thereto or for obtaining measured values therefrom
B60R 25/24 2013.01
BPERFORMING OPERATIONS; TRANSPORTING
60VEHICLES IN GENERAL
RVEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
25Fittings or systems for preventing or indicating unauthorised use or theft of vehicles
20Means to switch the anti-theft system on or off
24using electronic identifiers containing a code not memorised by the user
E05B 49/00 2006.01
EFIXED CONSTRUCTIONS
05LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
BLOCKS; ACCESSORIES THEREFOR; HANDCUFFS
49Electric permutation locks; Circuits therefor
G06F 21/44 2013.01
GPHYSICS
06COMPUTING; CALCULATING OR COUNTING
FELECTRIC DIGITAL DATA PROCESSING
21Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
30Authentication, i.e. establishing the identity or authorisation of security principals
44Program or device authentication
H04L 9/32 2006.01
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
9Arrangements for secret or secure communication
32including means for verifying the identity or authority of a user of the system
CPC
B60R 25/24
BPERFORMING OPERATIONS; TRANSPORTING
60VEHICLES IN GENERAL
RVEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
25Fittings or systems for preventing or indicating unauthorised use or theft of vehicles
20Means to switch the anti-theft system on or off
24using electronic identifiers containing a code not memorised by the user
E05B 49/00
EFIXED CONSTRUCTIONS
05LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
BLOCKS; ACCESSORIES THEREFOR; HANDCUFFS
49Electric permutation locks; Circuits therefor ; ; Mechanical aspects of electronic locks; Mechanical keys therefor
G06F 21/44
GPHYSICS
06COMPUTING; CALCULATING; COUNTING
FELECTRIC DIGITAL DATA PROCESSING
21Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
30Authentication, i.e. establishing the identity or authorisation of security principals
44Program or device authentication
H04L 9/32
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
9Cryptographic mechanisms or cryptographic; arrangements for secret or secure communication
32including means for verifying the identity or authority of a user of the system ; or for message authentication, e.g. authorization, entity authentication, data integrity or data verification, non-repudiation, key authentication or verification of credentials
H04Q 9/00
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
QSELECTING
9Arrangements in telecontrol or telemetry systems for selectively calling a substation from a main station, in which substation desired apparatus is selected for applying a control signal thereto or for obtaining measured values therefrom
Applicants
  • 株式会社東海理化電機製作所 KABUSHIKI KAISHA TOKAI RIKA DENKI SEISAKUSHO [JP]/[JP]
Inventors
  • 大屋 佳之 OYA, Yoshiyuki
  • 森 惠 MORI, Satoshi
  • 岩下 明暁 IWASHITA, Hiroaki
  • 内木 一輝 NAIKI, Kazuki
Agents
  • 恩田 誠 ONDA, Makoto
  • 恩田 博宣 ONDA, Hironori
Priority Data
2016-25201226.12.2016JP
Publication Language Japanese (JA)
Filing Language Japanese (JA)
Designated States
Title
(EN) UNAUTHORIZED COMMUNICATION ESTABLISHMENT PREVENTING SYSTEM
(FR) SYSTÈME DE PRÉVENTION D'ÉTABLISSEMENT DE COMMUNICATION NON AUTORISÉE
(JA) 通信不正成立防止システム
Abstract
(EN)
This unauthorized communication establishment preventing system determines whether radio communications performed using radio waves having the same frequency band between a verification ECU and an electronic key are valid or unauthorized. The unauthorized communication establishment preventing system is provided with: a dividing unit which divides a transmission radio wave (Sa) and/or a reply radio wave (Sb) into a plurality of divided signals (Sc1 to Sc3; Si1 to Si3; Sr1 to Sr3); a first transmitting unit which transmits each divided signal as a signal strength measurement signal; a second transmitting unit which transmits a measurement response signal (Sk) with respect to each signal strength measurement signal; a first measuring unit which measures a first signal strength, which is the received signal strength of the signal strength measurement signal; a second measuring unit which measures a second signal strength, which is the received signal strength of the measurement response signal; and a validity determining unit which determines whether a radio communication is valid or unauthorized on the basis of the first signal strength and the second signal strength.
(FR)
L'invention concerne un système de prévention d'établissement de communication non autorisée qui détermine si des communications radio effectuées par ondes radio ayant la même bande de fréquences entre une ECU de vérification et une clé électronique sont valides ou non autorisées. Le système de prévention d'établissement de communication non autorisée comprend : une unité de division qui divise une onde radio de transmission (Sa) et/ou une onde radio de réponse (Sb) en une pluralité de signaux divisés (Sc1 à Sc3 ; Si1 à Si3 ; Sr1 à Sr3) ; une première unité de transmission qui transmet chaque signal divisé en tant que signal de mesure d'intensité de signal ; une seconde unité de transmission qui transmet un signal de réponse de mesure (Sk) par rapport à chaque signal de mesure d'intensité de signal ; une première unité de mesure qui mesure une première intensité de signal, qui est l'intensité de signal reçu du signal de mesure d'intensité de signal ; une seconde unité de mesure qui mesure une seconde intensité de signal, qui est l'intensité de signal reçu du signal de réponse de mesure ; et une unité de détermination de validité qui détermine si une communication radio est valide ou non autorisée sur la base de la première intensité de signal et de la seconde intensité de signal.
(JA)
通信不正成立防止システムは、照合ECUと電子キーとの間において同一周波数帯の電波で行われる無線通信の正否を判定する。通信不正成立防止システムは、送信電波(Sa)及び/又は返信電波(Sb)を複数の分割信号(Sc1~Sc3;Si1~Si3;Sr1~Sr3)に分割する分割部と、各分割信号を信号強度測定信号として送信する第1送信部と、各信号強度測定信号に対して測定応答信号(Sk)を送信する第2送信部と、信号強度測定信号の受信信号強度である第1信号強度を測定する第1測定部と、測定応答信号の受信信号強度である第2信号強度を測定する第2測定部と、第1信号強度と第2信号強度とに基づいて無線通信の正否を判定する正否判定部とを備える。
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