A search robot system first divides the entire area of disaster into a mesh cell of an appropriate size, and arranges a search robot for each mesh cell. A face included in each of a plurality of images is chosen, and with respect to each of the images, an evaluation value for use in selecting one image from the plurality of images is calculated based on the face chosen in each of the images. Further specifics of the washer lid include a relatively thick inner periphery of the encapsulation which securely grips and reinforces an outer peripheral edge of the tempered glass panel, a rigid outer peripheral skirt, an indiscrete handle, a reinforced hand corder for a switch actuator and opposite rear corners carrying hinges for securing the washer lid to an associated washer opening.