Indoor positioning method and device based on environmental backscattering
A backscattering and indoor positioning technology, applied in positioning, measuring devices, instruments, etc., to achieve the effect of avoiding manual maintenance, saving the number of layouts, and getting rid of dependence
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[0052] The present invention will be described in detail below in conjunction with the accompanying drawings and embodiments.
[0053] The radio frequency source in the embodiment can be a base station around the environment to be located, the tag is a communication device without power supply itself, and the mobile terminal is a device with read and write functions.
[0054] refer to figure 1 , an indoor positioning method based on environmental backscattering, comprising the following steps:
[0055] In the first step, the radio frequency source RFs transmits a signal: the signal frequency band is within the tag detection frequency band, which can be an indoor WIFI signal, or an outdoor base station or other equipment in a specific frequency band;
[0056] The radio frequency source is not limited to one, and there may be multiple radio frequency sources, and only the signal frequency band emitted by the radio frequency source is required to be within the detection frequenc...
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