Gesture detection system and method using a radar sensor
US-11416077-B2 · Aug 16, 2022 · US
US12223114B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-12223114-B2 |
| Application number | US-202117786234-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jun 24, 2021 |
| Priority date | Jun 24, 2021 |
| Publication date | Feb 11, 2025 |
| Grant date | Feb 11, 2025 |
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The present disclosure provides an interactive control apparatus and an interactive system. The interactive control apparatus includes: an antenna array configured to transmit a radar signal and receive a reflected echo signal; a data processing assembly configured to determine, according to the radar signal and the echo signal, a body action and a corresponding control instruction, and output the control instruction to a terminal device; and a display assembly configured to display the determined body action and/or control instruction.
Opening claim text (preview).
What is claimed is: 1. An interactive control apparatus, comprising: an antenna array configured to transmit a radar signal and receive a reflected echo signal; a data processing assembly configured to determine, according to the radar signal and the echo signal, a body action and a corresponding control instruction, and output the control instruction to a terminal device; and a display assembly configured to display the determined body action and/or control instruction; wherein the display assembly comprises a display in which the antenna array is integrated, and the antenna array comprises a reference electrode layer, a dielectric layer, and a radiation electrode layer sequentially stacked together. 2. The interactive control apparatus according to claim 1 , wherein the data processing assembly is further configured to mix and analyze the radar signal and the echo signal to obtain reflection object information, and recognize the body action according to the reflection object information to determine the corresponding control instruction; wherein the reflection object information comprises at least one of distance information, speed information, or angle of arrival information. 3. The interactive control apparatus according to claim 2 , wherein the radar signal is a frequency modulated continuous wave signal. 4. The interactive control apparatus according to claim 2 , wherein the data processing assembly comprises: a first processing core and a second processing core; the first processing core is configured to perform analysis and computation according to a signal obtained by mixing the radar signal and the echo signal to generate the reflection object information, wherein the analysis and computation comprises: at least one of one-dimensional fast Fourier transformation, two-dimensional fast Fourier transformation, or computation of an angle of arrival; and the second processing core is configured to perform chirp control on the radar signal to pre-train and generate a body action recognition network, and recognize the body action through the body action recognition network according to the reflection object information, and determine the corresponding control instruction. 5. The interactive control apparatus according to claim 1 , wherein the display has a display region, and a peripheral region surrounding the display region; and the antenna array is integrated in the peripheral region, and the reference electrode layer and the radiation electrode layer each comprise a planar electrode. 6. The interactive control apparatus according to claim 1 , wherein the display has a display region, and a peripheral region surrounding the display region; and the antenna array is integrated in the display region, and the reference electrode layer and the radiation electrode layer each comprise a metal mesh. 7. The interactive control apparatus according to claim 6 , wherein the display is a liquid crystal display comprising a first display panel, a first polarizer on a display surface of the first display panel, and a second polarizer on a side of the first display panel distal to the first polarizer. 8. The interactive control apparatus according to claim 7 , wherein the antenna array is attached to a side of the first polarizer distal to the display surface of the first display panel. 9. The interactive control apparatus according to claim 7 , wherein the first display panel comprises a color filter layer, a liquid crystal layer and a backplane sequentially stacked together; and the antenna array is integrated between the first polarizer and the color filter layer. 10. The interactive control apparatus according to claim 9 , wherein the display further comprises a touch layer; and the touch layer is disposed between the color filter layer and the antenna array or between the color filter layer and the liquid crystal layer. 11. The interactive control apparatus according to claim 6 , wherein the display is an OLED display comprising a second display panel, and a third polarizer on a display surface of the second display panel. 12. The interactive control apparatus according to claim 11 , wherein the antenna array is attached to a side of the third polarizer distal to the display surface of the second display panel. 13. The interactive control apparatus according to claim 11 , wherein the second display panel comprises a thin film package layer and an OLED layer stacked together; and the antenna array is integrated between the third polarizer and the thin film package layer. 14. The interactive control apparatus according to claim 13 , wherein the display further comprises a touch layer; and the touch layer is disposed between the thin film package layer and the antenna array, or between the third polarizer and the thin film package layer such that the antenna array is integrated in the touch layer. 15. The interactive control apparatus according to claim 1 , further comprising a printed circuit board, wherein the data processing assembly is disposed on the printed circuit board, and the antenna array performs signal transmission with the data processing assembly through a flexible cable. 16. The interactive control apparatus according to claim 1 , further comprising a printed circuit board, wherein the data processing assembly is disposed on the printed circuit board, and the antenna array is packaged in the data processing assembly. 17. The interactive control apparatus according to claim 1 , wherein the display assembly comprises a routing gateway unit; the routing gateway unit is configured to receive media data; and the display assembly is further configured to display according to the media data. 18. An interactive system, comprising: a terminal device and an interactive control apparatus; wherein the interactive control apparatus is the interactive control apparatus according to claim 1 ; and the terminal device is configured to operate according to the control instruction output from the interactive control apparatus. 19. An interactive control apparatus, comprising: an antenna array configured to transmit a radar signal and receive a reflected echo signal; a data processing assembly configured to determine, according to the radar signal and the echo signal, a body action and a corresponding control instruction, and output the control instruction to a terminal device; and a display assembly configured to display the determined body action and/or control instruction; wherein the data processing assembly comprises: a low noise amplifier, a mixer, an intermediate frequency amplifier, an analog-to-digital converter, a digital front-end component, a cache, a power amplifier, a power divider, and a waveform generator; wherein the low noise amplifier, the mixer, the intermediate frequency amplifier, the analog-to-digital converter, the digital front-end component, and the cache are connected to each other in sequence; the waveform generator, the power divider, and the power amplifier are connected to each other in sequence; and an input terminal of the mixer is further connected to the power divider, an input terminal of the low noise amplifier is connected to the antenna array, and an output terminal of the power amplifier is connected to the antenna array. 20. An interactive system, comprising: a terminal device and an interactive control apparatus; wherein the interactive control apparatus is the interactive control apparatus according to claim 19 ; and the terminal device is configured to oper
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