3 results about "Horizontal projection" patented technology

The invention provides an obstacle detection method and device, equipment and a storage medium, and relates to the technical field of computer images. The method comprises the following steps: collecting multi-modal feature information of a static obstacle; judging whether the horizontal projection areas of the static obstacle at different heights are the same or not according to the multi-modal feature information; when the horizontal projection areas of the static obstacle at different heights are different, determining horizontal projection areas generated by the static obstacle at a plurality of preset heights according to the multi-modal feature information; and generating an obstacle map corresponding to each preset height in the plurality of preset heights based on the horizontal projection area generated by the static obstacle at the plurality of preset heights and the original map. In the embodiment of the invention, each obstacle map can more accurately represent the obstacle at the height, so that the unmanned equipment is more convenient to use during path planning.

The invention discloses a pouring base plate. The pouring base plate comprises a base plate body and a flow control shutoff device. An accommodating cavity is formed in the base plate body. The base plate body is provided with a runner brick hole which extends to the upper surface of the base plate body and communicates with the accommodating cavity. The flow control shutoff device comprises a runner brick, a sliding plate capable of sliding horizontally, a flow guiding body and a push rod capable of doing push-pull motion; the runner brick is arranged in the runner brick hole; the sliding plate and the flow guiding body are both arranged in the accommodating cavity; the runner brick, the sliding plate and the flow guiding body are sequentially sealed and attached from top to bottom; at least part of the horizontal projection of a lower end opening of a runner hole of the runner brick and at least part of the horizontal projection of an upper end opening of a flow guiding channel of the flow guiding body are overlapped; one end of the push rod is detachably connected with the sliding plate, and the other end of the push rod is located outside the base plate body; and the push rod drives the sliding plate to slide horizontally, and the runner hole and a flow passing hole of the sliding plate can communicate with the flow guiding channel vertically to form a pouring channel. The pouring base plate can control the flow rate and can also shut off the pouring channel, so that a continuous steel column is prevented from being formed.