Abstract: A shower system having an operating handle includes a positioning member, a ball joint, an overhead shower head, and a control mechanism. The positioning member has a water supply passage therein. The overhead shower head has an inlet end pivotally connected to the ball joint. The overhead shower head includes a handle portion protruding from a surface of the overhead shower head. The control mechanism is disposed on the handle portion and configured to control the inlet end of the overhead shower head to be in communication with an outlet end of the overhead shower head. The shower system is suitable for users of different heights, easy to operate, simple in structure and low in cost.

Abstract: A method for constructing a multistage network includes: deploying a plurality of nodes; constructing the upper network with at least one node of the plurality of nodes; and in response to determining there is an isolated node, determining an intermediate node for the isolated node and adding the isolated node into the upper network or one of the at least one sub-network according to the intermediate node.

Abstract: The present application discloses a lens, camera, package inspection system and image processing method. The lens comprises an optical lens and a photosensitive chip, and further comprises an optical filter comprising a first filter portion and a second filter portion and disposed between the optical lens and the photosensitive chip, wherein a first object point is imaged on the photosensitive chip through the optical lens and the first filter portion, and a second object point is imaged on the photosensitive chip through the optical lens and the second filter portion, the first filter portion having a thickness greater than that of the second filter portion. The technical problem of a lens in relevant art having a relatively small DOF is solved by the present application.

Abstract: The present application discloses a lens, camera, package inspection system and image processing method. The lens comprises an optical lens and a photosensitive chip, and further comprises an optical filter comprising a first filter portion and a second filter portion and disposed between the optical lens and the photosensitive chip, wherein a first object point is imaged on the photosensitive chip through the optical lens and the first filter portion, and a second object point is imaged on the photosensitive chip through the optical lens and the second filter portion, the first filter portion having a thickness greater than that of the second filter portion. The technical problem of a lens in relevant art having a relatively small DOF is solved by the present application.