Title:
LIVING BODY DETECTION METHOD AND DEVICE, AND DRIVE RECORDER
Document Type and Number:
WIPO Patent Application WO/2021/003840
Kind Code:
A1
Abstract:
A living body detection method and device, and a drive recorder; said method is applied to a living body detection device; the living body detection device comprises at least two signal transmitters and signal receivers provided corresponding to the signal transmitters, and a union of sub-regions covered by signals transmitted by the signal transmitters covers a region to be detected; said method comprises: generating at least two detection wave signals and transmitting same, the frequencies of the detection wave signals being different; receiving reflected wave signals corresponding to the detection wave signals, and filtering the reflected wave signals; demodulating the filtered reflected wave signals to obtain target signals; and when a vital sign signal exists in at least one target signal, determining that a living body exists in a device region to be detected. Said method achieves synchronous detection of the whole coverage of a region to be detected, avoiding the occurrence of missed detection.
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| WO/2013/021707 | VEHICLE OCCUPANT DETECTION DEVICE |
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Inventors:
CHEN ZHIYONG (CN)
CHEN ZHI (CN)
CHEN ZHI (CN)
Application Number:
PCT/CN2019/105915
Publication Date:
January 14, 2021
Filing Date:
September 16, 2019
Export Citation:
Assignee:
SENSEED TECH CO LTD (CN)
International Classes:
B60R21/015; B60H1/00; B60R21/01
Foreign References:
| CN109532741A | 2019-03-29 | |||
| CN109754554A | 2019-05-14 | |||
| CN106456062A | 2017-02-22 | |||
| CN109532742A | 2019-03-29 | |||
| CN107810430A | 2018-03-16 | |||
| CN109655833A | 2019-04-19 | |||
| US20020140214A1 | 2002-10-03 |
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