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 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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