OBJECT SEARCHING METHOD, DEVICE, AND SYSTEM

A location relationship obtaining method is disclosed. The method includes: recording, as a reference location point corresponding to a searched terminal, a location point for obtaining a wireless signal having greatest strength; obtaining at least two reference location points; using either of the at least two reference location points as a benchmark location point, and obtaining a reference location relationship between the other reference location points and the benchmark location point, where the reference location relationship is used to indicate a location relationship between a searched terminal corresponding to the other reference location points and a searched terminal corresponding to the benchmark location point. In embodiments of the present invention, a location point for obtaining, by a searching terminal, a wireless signal that has greatest strength in a wireless signal sent by a searched terminal is recorded as a reference location point corresponding to the searched terminal, a location relationship between the reference location points is used to indicate a location relationship between corresponding searched terminals, so that a location relationship between searched terminals whose locations are unknown can be determined, and anchors whose locations are known do not need to be deployed, reducing costs of deploying and maintaining anchors.