Patent ID: 11903671
Assignee: WISTRON CORPORATION
Field: Measurement (Instruments)
Classification: CPC A  G | IPC A  G

Claim 8:
9. An identity and information detection method, for a frequency modulated continuous wave radar system comprising at least one identity tag respectively disposed next to at least one test subject, wherein the method comprises:
transmitting a control signal to control a test identity tag of the at least one identity tag to be turned on;
transmitting, by a frequency modulated continuous wave radar, a chirp signal;
generating, by the test identity tag, a specific tag reflection signal corresponding to an identity frequency in response to the chirp signal; and
receiving, by the frequency modulated continuous wave radar, at least one reflection signal of the at least one test subject and the specific tag reflection signal in response to the chirp signal, such that the frequency modulated continuous wave radar calculates and determines that the specific tag reflection signal and a specific reflection signal of the at least one reflection signal correspond to an adjacent position information;
wherein the specific reflection signal corresponds to a test subject information,
wherein the frequency modulated continuous wave radar performs a range fast Fourier transform (FFT) on an intermediate frequency signal so as to determine at least one signal intensity of at least one distance frequency of the intermediate frequency signal is greater than a preset intensity and the at least one test subject and the test identity tag are located at at least one distance corresponding to the at least one distance frequency,
wherein the frequency modulated continuous wave radar performs a Doppler fast Fourier transform on at least one component corresponding to the at least one distance frequency greater than the preset intensity of the intermediate frequency signal being performed by the range fast Fourier transform, so as to determine the identity frequency is generated at an adjacent distance of the adjacent position information and at least one phase frequency of the intermediate frequency signal located at the adjacent distance is corresponding to the test subject information.