To provide a rain detection device that has a long life and the low installation cost, can ensure real-time performance when the rain stops, has little risk of degrading the image quality of a monitoring image, and can reliably operate a wiper by a control unit when it rains.SOLUTION: A dome type monitoring camera device 100 with a wiper function includes non-contact raindrop sensors 5A and 5B that are installed in a camera housing composed of a housing body 2 and a transparent plastic dome-shaped cover portion 3, and that non-contactly detect raindrops 20 adhering to the outer surface 3A of the light-transmitting dome-shaped cover portion 3 to which image pickup light provided in the camera housing is incident, and a control unit 6 that drives the non-contact raindrop sensor and operates a wiper 4 during rainfall on the basis of the detection output of the non-contact raindrop sensor. The non-contact raindrop sensor is an infrared distance sensor, that is, a non-contact distance sensor that reacts to raindrops adhering to the outer surface of the dome-shaped cover portion.SELECTED DRAWING: Figure 1

    【課題】寿命が長く、設置コストが低く、雨が止んだ時のリアルタイム性も確保でき、しかも、監視画像の画質を劣化させてしまう虞が少なく、降雨時にワイパーを制御部により確実に動作させることができる雨検出装置を提供する。【解決手段】ワイパー機能付きドーム型監視カメラ装置100であって、ハウジング本体2と透明なプラスチック製のドーム型カバー部3で構成されたカメラハウジング内に設けられ、該カメラハウジングに備えられた撮像光が入射される光透過性のドーム型カバー部3の外表面3Aに付着される雨滴20を非接触で検出する非接触式雨滴センサー5A、5Bと、非接触式雨滴センサーを駆動し、非接触式雨滴センサーによる検出出力に基づいて、降雨時にワイパー4を動作させる制御部6と、を備える。非接触式雨滴センサーは、ドーム型カバー部の外表面に付着する雨滴に反応する赤外線距離センサーすなわち非接触式距離センサーである。【選択図】図1


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    Title :

    RAIN DETECTION DEVICE


    Additional title:

    雨検出装置


    Contributors:

    Publication date :

    2022-04-05


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    H04N PICTORIAL COMMUNICATION, e.g. TELEVISION , Bildübertragung, z.B. Fernsehen / B60S SERVICING, CLEANING, REPAIRING, SUPPORTING, LIFTING, OR MANOEUVRING OF VEHICLES, NOT OTHERWISE PROVIDED FOR , Warten, Reinigen, Instandsetzen, Unterstützen, Anheben oder Rangieren von Fahrzeugen, soweit nicht anderweitig vorgesehen



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