4results about How to "Automatic change" patented technology

The embodiment of the invention discloses a page display method and device, equipment and a storage medium, and relates to the technical field of computers. The method comprises the steps that a target video is played in a preset page, an object identifier set associated with the target video is displayed in the preset page, and the object identifier set comprises object identifiers corresponding to a plurality of explanation objects associated with the target video; the object identifier set comprises a first object identifier displayed in a first display mode and a second object identifier displayed in a second display mode, the first object identifier is used for triggering a preset interaction event of a corresponding explanation object, and the first object identifier comprises an object identifier corresponding to a first target explanation object; the display state of the first target explanation object meets a preset condition. By adopting the technical scheme, automatic change of the object identifier display mode can be realized according to the display state of the explanation object, and the viewing experience and the interaction experience can be improved.

The application relates to the technical field of hub polishing, and particularly discloses a hub production polishing device, which comprises a base and further comprises: a polishing cylinder arranged on the base and internally provided with abrasive; a lifting table arranged on one side of the base and capable of performing lifting movement; a positioning disc located above the polishing cylinder and connected with the lifting table and capable of lifting and rotating under the drive of the lifting table; and a positioning assembly arranged on the positioning disc and comprising a plurality of clamping blocks capable of moving close to or away from each other and used for clamping and positioning the hub; the hub production polishing device realizes a 'rotation and automatic reciprocating lifting' compound motion mode of the hub through a lifting mechanism, the contact between the hub and the abrasive is more sufficient and intense, the polishing process is accelerated, and under the cooperation of the limiting assembly and the rolling shaft structure capable of rolling in the clamping block, the hub can automatically and smoothly change the clamping position in the polishing process, and the polishing dead angle problem caused by the shielding of the traditional clamp is solved.

The invention discloses an inflatable self-adaptive horizontal axis wind turbine, which belongs to the technical field of wind power generation, adopts an inflatable blade design, adopts an air film structure, maintains a blade airfoil by inflating high-pressure air, and provides a basic condition for realizing flexible dynamic change of the blade airfoil; according to wind speed and wind direction detection stage wind regime data, the airfoil profile with the highest adaptability to the wind regime is selected according to the wind regime data, the airfoil profile control assembly controls the blade airfoil profile according to the airfoil profile data, and automatic change of the blade airfoil profile is achieved; after being damaged and aged, the leaves can be repaired or efficiently recycled and reused, and the problems that traditional leaves are difficult to degrade and recycle and pollute are solved; dynamic adjustment of the height of the wind turbine can be achieved, the height of the wind turbine can be automatically adjusted according to the wind condition under the normal condition, the wake effect is avoided while the wind energy capturing efficiency is improved, and then the power generation efficiency of the device is improved; under extreme weather conditions, the height of the wind turbine can be reduced, device damage is avoided, and device safety is guaranteed.

The present invention belongs to the technical field of coal mining machines, and specifically discloses a method for automatic leveling of coal mining machines, comprising: obtaining and solving the two-dimensional position trajectory and attitude signal of the coal mining machine based on the three-dimensional position data collected by inertial navigation and the cumulative running distance per unit time of the odometer by using a two-dimensional coordinate conversion algorithm; obtaining and judging the current coal mining process section based on the coal mining machine motion control parameters, two-dimensional position trajectory and attitude signal information collected by the coal mining machine centralized control system, and outputting parameter coordinate system control based on the current coal mining process section, wherein the coal mining machine motion control parameters include start and stop, direction, lifting and lowering, and speed parameters; matching the pre-recorded coalfield working face data with the parameter coordinate system control, outputting effective coal mining curve data, and realizing automatic leveling of the coal mining machine.