3results about How to "Prediction is simple" patented technology

The invention discloses a power distribution network power demand prediction method and device based on big data analysis and a medium, and belongs to the technical field of power demand prediction, and the method comprises the steps: dividing a power distribution network into a plurality of power nodes, collecting the power data of the power nodes, and carrying out the screening to obtain power abnormal nodes; demand information of the power abnormal node is collected, and a power consumption demand event is extracted according to the demand information; acquiring event information of the power consumption demand event, and evaluating according to the event information to obtain a propagation effect condition of the power consumption demand event; acquiring a real-time prediction demand value of a power abnormal node, and determining power change values of other power nodes in combination with a propagation effect condition; and collecting real-time environment data of the power node, predicting according to the real-time environment data to obtain a basic power demand value, and superposing the power change value to obtain a real-time power demand value. The accuracy of power distribution network power demand prediction based on big data analysis is improved.

This invention provides a method and apparatus for predicting obstacle trajectories, an unmanned vehicle, and a storage medium. The obstacle trajectory prediction method includes: determining the target road scene currently occupied by the unmanned vehicle based on location information; if the target obstacle's number is among multiple obstacle numbers in the obstacle prediction queue, then determining the target obstacle's motion constraint boundary conditions in the target road scene based on a preset correspondence between the road scene, the obstacle, and the obstacle's motion constraint boundary conditions; if the target obstacle's motion information satisfies the target motion constraint boundary conditions, then obtaining target motion observation information based on the location information and the target obstacle's motion information; and predicting the target obstacle's trajectory within a specified time based on the target motion observation information and size information, thereby improving the effectiveness of the predicted trajectory and reducing prediction costs.

A battery cell manufacturing apparatus according to an embodiment of the present invention may include: a vacuum chamber in which a battery cell semi-finished product is disposed, the battery cell semi-finished product including a receiving portion for accommodating an electrolyte and an electrode assembly, and an air bag portion connected to the receiving portion and positioned above the receiving portion; a punching unit for forming a degassing hole in the air bag portion; a sealing tool for forming a temporary seal portion spanning between the degassing hole and the receiving portion, and the sealing tool forming a sealing area including the temporary seal portion while moving upward in contact with the air bag portion; a cutting unit for forming an opening by cutting off a portion of the upper end of the air bag portion after forming the temporary seal portion; and an injection unit for injecting gas into the opening.