发明名称 METHOD AND SYSTEM FOR CONTROLLING TRAIN BY RADIO
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. <IMAGE>
申请公布号 EP0970868(A1) 申请公布日期 2000.01.12
申请号 EP19970907399 申请日期 1997.03.19
申请人 HITACHI, LTD. 发明人 YOKOSUKA, YASUSHI;MAEKAWA, KEIJI;KAWABATA, ATSUSHI;FUJIWARA, MICHIO
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 主分类号 B61L3/12
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