A CHARGING PILE, METHOD AND DEVICE FOR RECOGNIZING THE CHARGING PILE, AND AN AUTONOMOUS CLEANING DEVICE

The present invention relates to a charging pile, a method and device for recognizing the charging pile, and an autonomous cleaning device. The charging pile may include: a pile body (1) comprising a power supply interface (11), wherein the power supply interface (11) is provided on a side surface of the pile body (1) to supply power for the autonomous cleaning device; an identification structure (2) arranged on the side surface of the pile body (1) to enable a position of the power supply interface (11) to be recognized and determined by a recognition device on the autonomous cleaning device, wherein the identification structure (2) comprises at least one identification element (2A, 2B), and each identification element (2A) comprises at least one bulge (21A) and at least one recess (22A), one (21A) of the bulge and the recess (21A, 22A) of an identification element (2A) has a surface structure having a smaller retroreflection coefficient than a surface structure of the other one (22A) of the bulge and the recess (21A, 22A), and an intensity of retroreflected light from the surface structure having the smaller retroreflection coefficient is not smaller than a minimum recognizable light intensity of the recognition device; wherein the identification structure (2) comprises at least one pair of surface structures of an identification element (2B) with unmatched specifications (21B, 22B), a bulge (21A, 21B) or a recess (22A, 22B) of any of the identification elements (2A, 2B) has a surface structure.