发明名称 |
Communication system which establishes communication sessions based on unit ID codes to avoid transmission conflicts |
摘要 |
A communication system between a host station and a plurality of substations eliminates the possibility of a connection failure between the host and a given substation by attempting to establish a communication session a finite number of times. The host station transmits and receives data to and from the substations and processes the data. Every time one of the substations receives a pilot command from the host station, it selects a time slot provided in the host station's operation schedule based on digit information of the substation's unique ID code and transmits a response signal in that time slot to the host. If the response conflicts with another substation's response, information based on a different digit in the ID code is selected. Because the ID code is unique to the substation, a communication session will eventually be established, and the probability of a conflict with a response from another substation is reduced to zero by re-transmission by transmitting the request a finite number of times.
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申请公布号 |
US5541928(A) |
申请公布日期 |
1996.07.30 |
申请号 |
US19940334329 |
申请日期 |
1994.11.02 |
申请人 |
NIPPONDENSO CO., LTD. |
发明人 |
KOBAYASHI, NAKABA;NAGURA, MICHINAGA;TOYAMA, KAZUMASA |
分类号 |
G01S13/76;G01S13/78;G06K7/00;G06K17/00;G07B15/06;G08G1/017;(IPC1-7):H04J3/16 |
主分类号 |
G01S13/76 |
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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