公开(公告)号：EP1104735A4

公开(公告)日：2004-10-06

申请号：EP99925359

申请日：1999-06-17

申请人： HITACHI LTD

发明人： KAWABATA ATSUSHI ,  FUJIWARA MICHIO ,  SATO HIROYASU ,  WATANABE DAI ,  OGUMA KENJI ,  TOYODA HIROYUKI ,  SATO HIROSHI

IPC分类号： G06F15/16 ,  B61L1/20 ,  B61L19/06 ,  G05B9/03 ,  G06F11/18 ,  G06F15/173 ,  G06F15/177 ,  G06F11/00

CPC分类号： G06F11/182 ,  B61L1/20 ,  B61L19/06 ,  G05B9/03 ,  G06F11/184 ,  G06F11/187

摘要： A multiple system processor adaptable to a large railroad station and having a short execution time without marring the safety and increasing the wiring between the multiple system processor and a controller. The multiple system processor comprises processing units each receiving the same input, performing the same processings, generating and outputting the processing results. A given processing unit out of the processing units serves as a main processing unit, and the others as slave ones. The main processing unit comprises a collecting section for collecting the processing results outputted from the main and slave processing units and an output section for outputting the collected processing results to a controller.

公开(公告)号：EP0970868A4

公开(公告)日：2002-10-16

申请号：EP97907399

申请日：1997-03-19

申请人： HITACHI LTD

发明人： YOKOSUKA YASUSHI ,  MAEKAWA KEIJI ,  KAWABATA ATSUSHI ,  FUJIWARA MICHIO

IPC分类号： B61L3/12 ,  B61L23/14 ,  H04B1/69 ,  H04B1/707 ,  H04L9/14 ,  H04L12/28 ,  H04L29/06 ,  H04L29/08 ,  H04Q9/00 ,  H04W4/04 ,  H04W12/02 ,  H04W24/00 ,  H04W84/00 ,  H04J13/00 ,  H04L13/00

CPC分类号： B61L3/125 ,  B61L27/0038 ,  H04L63/0428 ,  H04L67/04 ,  H04L67/12 ,  H04L67/125 ,  H04L69/329 ,  H04W84/00

摘要： A radio communication system for controlling train which can recognize the state of the transmission line of radio communication and easily discriminate equipment faults by utilizing the synchronous state of spread-spectrum communication by perceiving the synchronizing technique of the spread-spectrum communication. In addition, a system which uses controls signals of a plurality of cryptographic systems for ordinary communication and unified signals for emergency communication by providing a plurality of enciphered keys and emergency codes for emergency communication for ground stations and on-vehicle stations and obtaining agreement between transmission and reception by using protocol signals. Moreover, system control system which can delete a train after operation from objects to be controlled with a high degree of security by using a dynamic ID code which is given when a train registering protocol is implemented.

公开(公告)号：EP0615891B1

公开(公告)日：1997-12-29

申请号：EP94301815

申请日：1994-03-15

申请人： HITACHI LTD

发明人： MURATA SATORU ,  KAWABATA ATSUSHI ,  MIURA SHUUICHI ,  TASHIRO KOREFUMI ,  MOROOKA YASUO ,  YAHIRO MASAKAZU ,  KATAHIRA MASAKI ,  KERA KAZUO

IPC分类号： B61L3/00 ,  B61L27/00 ,  B61L1/00

CPC分类号： B61L27/0027 ,  B61L27/0022

公开(公告)号：EP1115213A4

公开(公告)日：2003-07-09

申请号：EP99940620

申请日：1999-09-02

申请人： HITACHI LTD

发明人： OGUMA KENJI ,  KAWABATA ATSUSHI ,  WATANABE DAI ,  SATO HIROSHI ,  TASHIRO KOREHUMI

IPC分类号： H04B1/10 ,  B61L1/18 ,  G01N27/26

CPC分类号： B61L1/188

摘要： A train detecting method highly resistant to noise for detecting a train according to presence/absence of demodulation because of decrease of the level of the received signal due to axel short circuit so as to make a train detection by using a frequency-modulated train detecting signal, wherein before the frequency-dependent demodulation a gain processing for amplifying the amplitude of the signal, a limiter processing for restricting the amplitude of the output signal of the gain processing to a certain level, and a filter processing for eliminating harmonics produced because of the limiter processing are combinedly performed to arbitrarily set the lower limit of the level of the demodulatable signal by means of the gain, thus arbitrarily setting the threshold of train detection.

公开(公告)号：EP0998160A4

公开(公告)日：2002-10-02

申请号：EP96929520

申请日：1996-09-04

申请人： HITACHI LTD

发明人： OGUMA KENJI ,  KAWABATA ATSUSHI ,  TASHIRO KOREFUMI ,  FUJIWARA MICHIO ,  TANIFUJI SHINYA

IPC分类号： B61L3/24 ,  H04L1/00 ,  H04L1/16 ,  H04L1/24 ,  H04Q9/00 ,  B61L23/16

CPC分类号： H04L1/0061 ,  B61L3/24 ,  H04L1/1642 ,  H04L1/1664 ,  H04L1/242

摘要： A method and a system for continuously transmitting railroad information between an on-board controller and a ground controller. A redundancy code which is updated according to a preset procedure at every transmission is added to the information to be transmitted, and the resultant is transmitted. On the receiving side, the redundancy code received together with the transmitting information is collated with a redundancy code which is prepared on the receiving side and updated according to a preset procedure. Therefore, the fault of the transmission route is detected easily, and the safety of train by means of the automatic train control is improved.