6results about How to "Loud noise" patented technology

The application belongs to the technical field of drill bits, and discloses a noise reduction drill bit and a use method thereof, which comprises a drill body, a drill bit for drilling, an auxiliary drill bit arranged between the drill body and the drill bit for assisting drilling, a cleaning assembly arranged in the drill body for cleaning, and an auxiliary assembly arranged in the drill body for assisting ejection, a circular through hole for feeding is arranged in the drill bit, and one end of the circular through hole is in communication with the interior of the drill body. The application utilizes the equipment to push the push rod to move, so that the push plate can be well driven to move in the interior of the drill body. Meanwhile, the support rod, the positioning groove and the moving block are used in cooperation, so that the push plate can be assisted to push during the pushing process, the pushing effect is better, and the noise reduction effect is also better.

The utility model provides a cup cover assembly and a food processor. According to one embodiment of the invention, the cup cover assembly comprises an outer support, an inner support and a glass cover; the inner support comprises a first abutting portion and a step portion which are connected, the outer support is arranged on the periphery of the step portion in a sleeving mode, the first abutting portion abuts against the upper surface of the glass cover, and the step portion is supported on the lower surface of the glass cover. According to the scheme, a user can observe food materials in the food processor through the cup cover, and meanwhile the risk that the user is scalded can be reduced.

This invention relates to a hyperbaric oxygen chamber system with adjustable oxygen concentration. The system includes a main unit and a chamber. The main unit comprises a main control module, an oxygen regulation module, and a pressure regulation module, all electrically connected to the main control module. The pressure regulation module includes a low-oxygen air regulation submodule and a pressure-maintaining air submodule. The pressure-maintaining air submodule includes a first air compressor, a pressure relief valve, and a first sensor. The oxygen regulation module includes a second air compressor, a separation valve, a molecular sieve tower, a flow-limiting valve, and a vacuum pump. The low-oxygen air regulation submodule includes a three-way valve and a one-way valve. This invention's adjustable oxygen concentration hyperbaric oxygen chamber system can reduce the production cost of hyperbaric oxygen chamber systems, improve the user experience, and allow the oxygen concentration within the chamber to be adjusted below that of air, thus expanding its application to low-oxygen training and testing environments.

This utility model belongs to the field of trolley technology, and specifically relates to a trolley that facilitates straight-line travel. It includes a balance scooter and a trolley body, connected by a connecting frame. The connecting frame is detachably connected to the trolley body and rotatably connected to the balance scooter. The balance scooter has a positioning groove, and the connecting frame has a positioning element and an elastic element. The elastic element drives the positioning element to engage with the positioning groove, fixing the balance scooter and the connecting frame relatively, thus allowing the trolley to maintain straight-line travel or maintain a certain angle of rotation. Under external force, the positioning element can move relative to the positioning groove, allowing the balance scooter and the connecting frame to rotate relative to each other, thus enabling the trolley to turn flexibly. The purpose of this utility model is to provide a user-friendly trolley that facilitates straight-line travel.

This invention discloses a robust control method and system for brain-controlled unmanned aerial vehicles (UAVs) based on a large model, belonging to the field of brain-computer interface and UAV control technology. Specifically, it includes: acquiring EEG signals and identifying discrete brain-controlled event commands; inputting these commands into a large model intent reconstruction module after sliding window serialization encoding; outputting action candidates with multiple risk levels; performing parsing verification, risk assessment, and motion feasibility checks on the action candidates; selecting the final action and mapping it to parameterized motion skill atoms; having a state machine manage the execution of the skill atoms; implementing closed-loop execution via the flight control interface and monitoring safety boundaries; and triggering hovering and return-to-home actions in case of anomalies. This invention achieves intent reconstruction and risk-layered decision-making for brain-controlled commands, constructing a full-link safety closed-loop control system. It significantly improves the control stability, safety, and system resilience of brain-controlled UAVs under uncertain command conditions, reduces the risk of false triggering, and increases the mission success rate.

The application provides an image processing method and device, a computer readable storage medium and a terminal device, the image processing method comprising: obtaining an image to be processed; calculating a statistical value of low-frequency information of the image to be processed in a luminance domain; determining a corresponding mapping curve according to a scene to which the statistical value belongs, the mapping curve representing a mapping relationship between an original luminance value and an adjusted luminance value of each pixel in the luminance domain, different scenes corresponding to different mapping curves; determining an adjusted luminance value of each pixel in the image to be processed according to the mapping curve; and mapping a gain of the adjusted luminance value of each pixel to each color channel of the corresponding pixel to obtain an adjusted image. The application provides an image processing scheme capable of improving the luminance of a low-light area of an image and avoiding overexposure of a highlight area.