发明名称 |
DETERMINING METHOD, COMPUTER PRODUCT, DETERMINING APPARATUS, AND DETERMINING SYSTEM |
摘要 |
A determining method executed by a processor includes obtaining distance information that indicates a distance between monitoring apparatuses disposed to encompass a given area in which wireless communications apparatuses are scattered; causing a wireless signal to be transmitted and received between the monitoring apparatuses by multi-hop communication among the wireless communications apparatuses; calculating an estimated distance between the monitoring apparatuses, based on a hop count of the wireless signal multi-hop communicated among the monitoring apparatuses; and making a determination concerning a vacant area in which none of the wireless communications apparatuses is present, based on a result of comparison of the distance indicated by the obtained distance information and the calculated estimated distance. |
申请公布号 |
US2015153439(A1) |
申请公布日期 |
2015.06.04 |
申请号 |
US201514619879 |
申请日期 |
2015.02.11 |
申请人 |
FUJITSU LIMITED |
发明人 |
OTOMO Toshiya;YAMASHITA Koichiro;SUZUKI Takahisa;YAMAUCHI Hiromasa;KURIHARA Koji;TERANISHI Yuta |
分类号 |
G01S5/02;H04W4/02;H04L12/733 |
主分类号 |
G01S5/02 |
代理机构 |
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代理人 |
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主权项 |
1. A determining method executed by a processor, the determining method comprising:
obtaining distance information that indicates a distance between monitoring apparatuses disposed to encompass a given area in which wireless communications apparatuses are scattered; causing a wireless signal to be transmitted and received between the monitoring apparatuses by multi-hop communication among the wireless communications apparatuses; calculating an estimated distance between the monitoring apparatuses, based on a hop count of the wireless signal multi-hop communicated among the monitoring apparatuses; and making a determination concerning a vacant area in which none of the wireless communications apparatuses is present, based on a result of comparison of the distance indicated by the obtained distance information and the calculated estimated distance. |
地址 |
Kawasaki-shi JP |