The technical problem of the present invention is to provide a foreign matter detection device capable of suppressing a decrease in foreign matter detection accuracy even if the state of a foreign matter detection region may change. This foreign matter detection device is provided with: an imaging device that includes a foreign matter detection region within an imaging range; and a foreign matter presence/absence determination unit that determines the presence/absence of a foreign matter on the basis of a result of comparison between a captured image captured by the imaging device and a reference image in which no foreign matter is present within the imaging range, the foreign matter presence/absence determination unit determines that no foreign matter is present on the basis of the comparison result and that a predetermined first condition is satisfied, and the foreign matter presence/absence determination unit determines that no foreign matter is present on the basis of the comparison result. And an update processing for updating the reference image to an updated reference image in which the foreign matter presence/absence determination unit determines that there is no foreign matter.
本发明的技术问题在于,提供一种异物检测装置,即使在异物的检测区域的状态可能发生变化的情况下,也能够抑制异物检测精度的下降。本发明的异物检测装置具备:摄像装置,其将异物的检测区域包含于摄像范围内;和异物有无判断部,其基于上述摄像装置拍摄的摄像图像与在所述摄像范围内不存在异物的基准图像的比较结果,判断异物的有无,所述异物有无判断部根据基于所述比较结果判断为不存在异物、且满足规定的第1条件,实行将所述基准图像更新为由所述异物有无判断部判断为不存在异物的更新基准图像的更新处理。
Foreign object detection device, wireless power supply device, and wireless power transmission system
异物检测装置、无线供电装置和无线电力传输系统
2022-06-21
Patent
Elektronische Ressource
Chinesisch
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