| 主权项 |
1. A method, comprising:
in response to a first node determining that the first node is currently in an abnormal state, broadcasting, by a transmitter, a plurality of received signal strength indication (RSSI) request messages; receiving, by a receiver of the first node, a plurality of signal strength measurement values that are returned by a plurality of second nodes; separately calculating, by the first node, a plurality of path loss values between the first node and each of the plurality of second nodes according to signal strength measurement values that are received by the first node from the respective second node of the plurality of second nodes; determining, by the first node, a quantity of second nodes for which the plurality of path loss values are each different from each other; and determining, by the first node, that the first node moves in response to determining that the quantity of second nodes is greater than a set threshold, wherein determining that the first node moves comprises:
calculating, by the first node, a ratio of the quantity of second nodes for which the plurality of path loss values are each different from each other to a total quantity of second nodes that for which a signal strength measurement value is received; andwhen the ratio is greater than a set threshold, determining that the first node moves. |
