发明名称 |
RADIO SYSTEM CENTRALIZED MONITORING SYSTEM |
摘要 |
<p>PROBLEM TO BE SOLVED: To eliminate the need for assignment of a frequency and to obtain the system with flexibility at a high efficiency by providing an information broadcast means to a master station and each slave station and conducting a prescribed processing or the like so as to eliminate a delay time caused between the master station and the slave stations opposite to each other in the case of communication thereby changing sequence of slave stations in a loop automatically on the occurrence of an abnormality. SOLUTION: Data A stored in an initial value parameter table of a master station are broadcast simultaneously to all slave stations by a signal with a prescribed single frequency as the initial operation among the master station and the slave stations of the radio system central monitor system. In this case, the slave stations 1-N are all in a reception state. The initial value parameter sent from the master station to the slave stations comprises slave station data transmission sequence parameter 1, slave station No parameter 2 and expiration time parameter 3. Upon the receipt of the initial parameter, each slave station sets the parameter to its initial value parameter storage section.</p> |
申请公布号 |
JPH10210571(A) |
申请公布日期 |
1998.08.07 |
申请号 |
JP19970007492 |
申请日期 |
1997.01.20 |
申请人 |
HITACHI LTD;HITACHI ENG CO LTD |
发明人 |
KOSAKATANI JIYUICHI;TAHIRA MITSUHIRO;NEMOTO KIMIO;TAKAHASHI AKIRA |
分类号 |
H04Q9/00;H04L12/28;(IPC1-7):H04Q9/00 |
主分类号 |
H04Q9/00 |
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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