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1. WO2020110845 - FAILURE DETECTION DEVICE

Publication Number WO/2020/110845
Publication Date 04.06.2020
International Application No. PCT/JP2019/045348
International Filing Date 20.11.2019
IPC
H04B 17/17 2015.01
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
BTRANSMISSION
17Monitoring; Testing
10of transmitters
15Performance testing
17Detection of non-compliance or faulty performance, e.g. response deviations
G01R 31/00 2006.01
GPHYSICS
01MEASURING; TESTING
RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
31Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
H04B 1/3822 2015.01
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
BTRANSMISSION
1Details of transmission systems, not covered by a single one of groups H04B3/-H04B13/123; Details of transmission systems not characterised by the medium used for transmission
38Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
3822specially adapted for use in vehicles
H04B 17/16 2015.01
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
BTRANSMISSION
17Monitoring; Testing
10of transmitters
15Performance testing
16Test equipment located at the transmitter
CPC
G01R 31/00
GPHYSICS
01MEASURING; TESTING
RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
31Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
H04B 1/3822
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
BTRANSMISSION
1Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
38Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
3822specially adapted for use in vehicles
H04B 17/16
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
BTRANSMISSION
17Monitoring; Testing
10of transmitters
15Performance testing
16Test equipment located at the transmitter
H04B 17/17
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
BTRANSMISSION
17Monitoring; Testing
10of transmitters
15Performance testing
17Detection of non-compliance or faulty performance, e.g. response deviations
Applicants
  • 株式会社デンソー DENSO CORPORATION [JP]/[JP]
Inventors
  • 村上 豊生 MURAKAMI Bunsei
Agents
  • 特許業務法人 明成国際特許事務所 TOKKYO GYOMUHOJIN MEISEI INTERNATIONAL PATENT FIRM
Priority Data
2018-22363929.11.2018JP
Publication Language Japanese (JA)
Filing Language Japanese (JA)
Designated States
Title
(EN) FAILURE DETECTION DEVICE
(FR) DISPOSITIF DE DÉTECTION DE DÉFAILLANCE
(JA) 不具合検出装置
Abstract
(EN)
A failure detection device (50) for detecting failure of an antenna (30) is provided with: a frequency adjustment unit (21, 22); a modulation unit (23); an amplification unit (24); a current measurement unit (25) that measures an antenna current; a failure detection unit (11) that detects failure; and a control unit (21). While executing a test signal supply process for changing the frequency of a carrier wave in a frequency range predetermined as the range of resonance frequency of the antenna, modulating the carrier wave by use of a test signal serving as an input signal, amplifying the carrier wave after modulation, and supplying the resultant to the antenna as a to-be-outputted signal, the control unit measures an antenna current corresponding to the frequency of the carrier wave every time the frequency is changed. The failure detection unit detects failure caused by a difference or change in properties of the antenna, by using a value of an antenna current on the large side among a plurality of antenna currents measured while the test signal supply process is executed.
(FR)
L'invention concerne un dispositif de détection de défaillance (50) permettant de détecter une défaillance d'une antenne (30) qui comprend : une unité de réglage de fréquence (21,22) ; une unité de modulation (23) ; une unité d'amplification (24) ; une unité de mesure de courant (25) qui mesure un courant d'antenne ; une unité de détection de défaillance (11) qui détecte une défaillance ; et une unité de commande (21). Tout en exécutant un processus de fourniture de signal de test pour changer la fréquence d'une onde porteuse dans une plage de fréquence prédéterminée en tant que plage de fréquence de résonance de l'antenne, modulant l'onde porteuse au moyen d'un signal de test servant de signal d'entrée, amplifiant l'onde porteuse après modulation, et fournissant la résultante à l'antenne en tant que signal à émettre, l'unité de commande mesure un courant d'antenne correspondant à la fréquence de l'onde porteuse chaque fois que la fréquence est changée. L'unité de détection de défaillance détecte une défaillance provoquée par une différence ou un changement de propriétés de l'antenne, à l'aide d'une valeur d'un courant d'antenne sur le grand côté parmi une pluralité de courants d'antenne mesurés pendant que le processus de fourniture de signal de test est exécuté.
(JA)
アンテナ(30)の不具合を検出する不具合検出装置(50)は、周波数調整部(21、22)と、変調部(23)と、増幅部(24)と、アンテナ電流を測定する電流測定部(25)と、不具合を検出する不具合検出部(11)と、制御部(21)とを備える。制御部は、試験信号供給処理であって、アンテナの共振周波数の範囲として予め定められた周波数範囲内において搬送波の周波数を変化させ、入力信号としての試験信号により搬送波を変調し、変調後の搬送波を増幅させて出力対象信号としてアンテナに供給する試験信号供給処理を実行しつつ、搬送波の周波数が変化する毎に、該周波数に対応するアンテナ電流を測定し、不具合検出部は、試験信号供給処理が実行中に測定されたアンテナ電流のうち、大きい側のアンテナ電流の値を利用して、アンテナの特性の相違または変化に起因する不具合を検出する。
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