4results about How to "Easy to generate" patented technology

This invention discloses a method for encoding structured light patterns, a structured light projection module, and a three-dimensional measurement system, belonging to the field of optical measurement. Addressing the problem of fixed and inaccurate structured light encoding units in existing methods, this invention provides a method for encoding structured light patterns. The method divides the structured light pattern into multiple types of grid units, forming a grid encoding group with a predetermined number of consecutively arranged grid units. The grid encoding group is encoded based on the type of each grid unit, ensuring that each grid encoding group has a unique and non-repeating code. The code of the grid encoding group maps to its spatial position within the structured light pattern. Decoding includes acquiring the structured light pattern, determining the type of each grid unit, and matching the grid encoding group with the encoding set to obtain its position. This invention achieves flexible, high-density, and highly occlusion-resistant absolute position encoding by uniquely and non-repeating grid encoding groups composed of multiple consecutive grid units, making it suitable for high-precision three-dimensional measurement.

This invention provides a DC active filter device based on square wave modulation. The device includes: at least one independent DC active filter unit; each DC active filter unit is connected in parallel across the two ends of a DC bus; each DC active filter unit includes: a measurement circuit that measures the ripple current of the DC bus; a control circuit that calculates the frequency components of the ripple current and then obtains a switching signal through square wave modulation, the frequency of which is equal to the target frequency of the ripple current to be compensated; and a drive circuit that sends the switching signal to the main power circuit, causing the switching devices in the main power circuit to operate and generate a compensation current to compensate for the ripple current of the target frequency component of the DC bus. This invention solves the problem of poor ripple suppression performance of high-power DC active filters at low switching frequencies. It enables the application of DC active filters at lower switching frequencies up to MW-level power applications, meeting the DC bus ripple suppression requirements for long-term operation of high-power power supplies.

This invention discloses a highly accurate Chinese spelling checking method, system, and medium. The method includes the following steps: acquiring a corpus to be used, configuring a replacement table to be used, and generating near-phonetic error samples and near-shape error samples to be used based on the corpus; training a decision model to be used based on the corpus, and training a checking model to be used based on the near-phonetic and near-shape error samples; and performing text checking and error correction operations on the acquired text to be checked based on the replacement table, the trained decision model, and the checking model. This invention can efficiently generate high-quality and highly realistic training samples, and can detect errors in Chinese text by independently setting the trained error detection model and post-processing decision model, and perform high-quality error correction judgment after error detection, further reducing the model's error correction rate and improving the correction quality, thus opening up a new method for Chinese spelling error detection.

The invention discloses a function interface switching device, a switching method and electrical equipment. The switching device comprises a user interaction module, a selection module and a control module, wherein the user interaction module is used for providing a function interface, and the function interface comprises at least one key; the selection module selects one of the at least two different key function layouts as a target key function layout; the control module is in communication connection with the user interaction module and the selection module, at least two sets of program data are stored in the control module, and each set of program data corresponds to one key position function layout; and the control module is used for running the program data corresponding to the target key position function layout, and configuring the function of each key as the key position function corresponding to the key on the target key position function layout.