4results about How to "Accurate overlay" patented technology

The invention discloses an underground cable positioning method, an underground cable positioning device and electronic equipment. The method comprises the following steps: acquiring an inspection image and equipment positioning data corresponding to inspection equipment; determining a cable three-dimensional model according to the equipment positioning data; determining space correlation parameters between the inspection image and the cable three-dimensional model; determining depth data corresponding to the inspection image; according to the space correlation parameters and the depth data, fusing the inspection image with the cable three-dimensional model to obtain a cable fusion model; and positioning the underground cable according to the cable fusion model. According to the invention, the technical problem of inaccurate positioning of the underground cable during positioning of the underground cable in the prior art is solved.

This invention provides a method and system for directional sound generation from a loudspeaker based on offline simulation and feedforward control, relating to the field of electroacoustic technology. The method includes: based on the feedforward compensation database, in the online implementation phase, performing frequency decomposition on the input audio signal using a digital signal processor and querying the database to obtain compensation parameters corresponding to each frequency component, thereby obtaining a real-time inverse compensation signal; using the real-time inverse compensation signal, synchronously driving the main loudspeaker and auxiliary loudspeaker, causing the compensated sound wave radiated by the auxiliary loudspeaker to destructively interfere with the sound wave behind the main loudspeaker, forming an acoustic quiet zone. This invention combines offline simulation to construct a precise database with online feedforward query for real-time compensation, ensuring accuracy and efficiency throughout the entire process from data foundation to acoustic quiet zone formation.

The FPC board feeding machine comprises a raw material supply mechanism, a transfer alignment mechanism, an upper pressing plate stock bin mechanism, a jig board waiting mechanism, an integrated assembly mechanism and a carrying mechanism. The raw material supply mechanism is used for storing and supplying FPC material belts; the transfer alignment mechanism is arranged on one side of the raw material supply mechanism and is used for receiving and positioning the FPC material belt; the upper pressing plate bin mechanism is used for storing and supplying upper pressing plates; the jig waiting plate mechanism is used for storing and supplying jig plates; and the carrying mechanism is used for sequentially carrying the jig plate, the positioned FPC material belt and the upper pressing plate to the integrated assembly mechanism for integrated assembly. A complete automatic integration system is constructed by integrating a plurality of functional modules such as raw material supply, transfer alignment, upper pressing plate storage, jig plate supply, integrated assembly and automatic carrying, and automatic, continuous and accurate taking, placing and overlapping from an FPC material belt, a jig plate and an upper pressing plate are achieved; and the automation degree, the assembly precision and the overall reliability of the production process are remarkably improved.

The application belongs to the technical field of solar light utilization, and discloses a solar light energy optical fiber leading-in system with fixed lenses; the system comprises a lens mounting module, which is used for fixing and mounting convex lenses on the outer vertical wall surface of a building; and a sun position determining module, which is used for determining the real-time position of the sun through an astronomical algorithm; the application can flexibly select two kinds of focus-pursuing modes according to different situations, so as to ensure that the solar light energy is effectively and quickly led into the input end of the optical fiber, the optimal degree of freedom combination set of the mirror array corresponding to the real-time position of the sun is quickly determined, the fast focus-pursuing is realized, the focal point spots reflected by the mirrors are accurately superimposed on the input end of the optical fiber, and the focal point spot intensity of the input end of the optical fiber is maximized; the fast focus-pursuing of the input end of the optical fiber is also realized, the focus-pursuing time is reduced, the current optical fiber input end position which is not fixed is adjusted, and the solar light can be accurately led into the input end of the optical fiber.