To provide a seat wetness detection device that can reduce cost, perform downsizing, being excellent in wearability to a seat, and can accurately detect wetting of a seat by simple control.SOLUTION: A seat wetness detection device includes: a millimeter wave sensor 11 for transmitting and receiving millimeter waves to and from a seat 1; and a reflection unit 7 that is arranged inside the seat 1 and reflects a millimeter wave from the millimeter wave sensor 11. Wetting of the seat 1 can be determined based on an attenuation degree of signal intensity due to moisture of a reflected wave from the reflection unit 7.SELECTED DRAWING: Figure 1

    【課題】コストを低減することが可能であり、小型化も可能であって座席への装着性に優れ、簡単な制御によって座席の濡れを正確に検知することができる座席濡れ検知装置を提供する。【解決手段】座席1に向けミリ波を送受信するミリ波センサ11と、座席1の内部に配置されてミリ波センサ11からのミリ波を反射する反射部7とを備え、反射部7からの反射波の水分による信号強度の減衰度合いに基づき座席1の濡れを判定可能とした。【選択図】図1


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    Title :

    SEAT WETNESS DETECTION DEVICE


    Additional title:

    座席濡れ検知装置


    Contributors:

    Publication date :

    2023-02-16


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    G01S RADIO DIRECTION-FINDING , Funkpeilung / B61D Einzelheiten oder Arten des Wagenaufbaus von Eisenbahnfahrzeugen , BODY DETAILS OR KINDS OF RAILWAY VEHICLES



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