| 摘要 |
A computer obtains first information related to a first communication path that is from a first aggregating apparatus to a second aggregating apparatus when the second aggregating apparatus receives a transmission signal that is from sensor nodes in response to a transmission instruction that is transmitted by the first aggregating apparatus and propagated by multi-hop communication via the sensor nodes. The computer obtains from a storage apparatus, second information that is related to a second communication path that is a stationary path from the first aggregating apparatus to reception by the second aggregating apparatus. The computer determines correspondence of the first communication path and the second communication path by comparison of the first information and the second information, and if the first communication path and the second communication path do not correspond, the computer determines that an abnormality related to a sensor node is present. |
