Alarm method based on label alarm device
A technology of alarm device and label, applied in the field of positioning, can solve problems such as loss or forgetting that cannot be solved
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[0032] All features disclosed in this specification, or steps in all methods or processes disclosed, may be combined in any manner, except for mutually exclusive features and / or steps.
[0033] Any feature disclosed in this specification (including any appended claims, abstract), unless otherwise stated, may be replaced by alternative features that are equivalent or serve a similar purpose. That is, unless expressly stated otherwise, each feature is one example only of a series of equivalent or similar features.
[0034] Such as figure 1 As shown, this embodiment discloses an alarm method based on a label alarm device, including:
[0035] S10: The alarm device respectively acquires the geographic locations of several positioning tags and the smart terminal;
[0036] S20: The alarm device calculates the first positional relationship between the plurality of positioning tags and the smart terminal, or calculates the second positional relationship between the plurality of posit...
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