10results about How to "Change working mode" patented technology

The invention provides a metasurface unit which comprises a radiation patch layer, the radiation patch layer comprises a radiation patch, a first mode switching module and a second mode switching module, the first mode switching module is located at the edge of the radiation patch, the second mode switching module is located in a slot in the radiation patch, and the first mode switching module is located at the edge of the radiation patch, and the second mode switching module is located in the slot in the radiation patch. The state of the first mode switching module and the state of the second mode switching module are mutually combined to form a multi-bit control state. The invention further provides a metasurface system.

The application discloses a frequency planning method based on an electromagnetic spectrum large model, aiming at solving the problems of low analysis efficiency caused by relying on manual checking of a large number of ITU documents in the existing frequency planning process, and the problem of incomplete analysis results caused by a single retrieval mode being difficult to simultaneously consider information correlation and diversity. The method comprises the following steps: step one, preprocessing ITU related documents, and adopting a vector embedding model to construct a vectorized knowledge base; step two, acquiring service parameters and scene parameters input by a user; step three, based on a multi-path retrieval mechanism jointly driven by a service-scene, retrieving the vector knowledge base; step four, utilizing an electromagnetic spectrum large model, combining the retrieval result to carry out spectrum compatibility and planning feasibility analysis; and step five, outputting a frequency planning feasibility analysis result. Through deep fusion of the vector knowledge base and the electromagnetic spectrum large model, the application effectively improves the intelligent level, accuracy and efficiency of frequency planning, and provides a new paradigm for rational allocation of spectrum resources and multi-service coexistence analysis.

The utility model discloses a flame-retardant coating coating device, and particularly relates to the technical field of coating appliances, the flame-retardant coating coating device comprises a main body assembly, a coating assembly is arranged on the front surface of the main body assembly, the main body assembly comprises a longitudinal transmission screw rod, and a stable frame is fixedly mounted on each of the two side surfaces of the longitudinal transmission screw rod; a first threaded sliding block is slidably mounted on the top face of the longitudinal transmission lead screw, a first vertical transmission lead screw is fixedly mounted on the top face of the first threaded sliding block, and a second threaded sliding block is slidably mounted on the front face of the first vertical transmission lead screw. According to the flame-retardant coating coating device, the working mode of the device can be changed by changing the orientation of a second vertical transmission lead screw, so that a coating head can coat the bottom area of a wall, the inclination angle of the coating head can be conveniently changed while the coating area is lifted, and the coating efficiency is improved. And when the inclined wall body is coated, more convenience is achieved, and the practicability is higher.

The present invention provides a fresh air device and an air conditioner indoor unit having the same, comprising: a fresh air casing, the fresh air casing is provided with an indoor air inlet, a fresh air outlet and a switching port, the indoor air inlet and the fresh air outlet are both used to communicate with indoor air, and the switching port is used to communicate with outdoor air; a fresh air induction structure and an exhaust structure, the fresh air induction structure and the exhaust structure are arranged in the fresh air casing at intervals, the indoor air inlet is connected to the exhaust cavity of the exhaust structure, and the fresh air outlet is connected to the fresh air cavity of the fresh air induction structure; wherein the switching port can be selectively connected to the fresh air cavity or the exhaust cavity, so that the air flowing from the indoor air inlet into the exhaust cavity flows out through the switching port, or the fresh air introduced by the switching port flows out through the fresh air cavity and then flows out from the fresh air outlet. The technical solution provided by the present invention can solve the technical problem that the fresh air device in the prior art cannot realize the exhaust function.

The application relates to a polishing machine capable of rotating and adding polishing liquid. The polishing machine comprises a fixed part and a rotating part connected to the fixed part in a rotating mode, the rotating part is connected with a polishing brush disc in a direction away from the rotating part through a rotating shaft, the rotating part is also provided with a liquid delivery port in the direction away from the rotating part, a liquid delivery pipeline is arranged in the rotating part, the liquid delivery pipeline is communicated with a contact surface between the rotating part and the fixed part from the liquid delivery port, and a liquid delivery port is arranged on the fixed part in a position corresponding to the liquid delivery pipeline. The liquid delivery port and the polishing brush disc are alternately changed in position when the rotating part rotates, so that the working mode is changed. In addition, the rotation of the rotating part can also change the alignment state of the liquid delivery pipeline and the liquid delivery port, so that the liquid delivery function of the liquid delivery port is automatically opened or closed.

The invention provides a magnetic skyrmion memory. The magnetic skyrmion memory comprises a magnetic structure track, a magnetic tunnel junction and a ferroelectric back gate. The magnetic structure track comprises a topological material layer and a ferromagnetic layer and is constructed to comprise a middle area and extension parts extending from the two sides of the middle area, and the ferromagnetic layers of the extension parts on the two sides are pinned in the opposite magnetic moment directions through antiferromagnetic coupling; the magnetic tunnel junction is located on the middle area of the magnetic structure track and is configured to be used for electrically reading the resistance state change of the memory; the ferroelectric back gate comprises a ferroelectric layer and a bottom electrode, and the ferroelectric back gate is located below the middle area of the magnetic structure track; when current is injected into the topological material layer, a spin-orbit moment is generated to regulate and control a magnetic structure in the ferromagnetic layer to move in the ferromagnetic layer, and the electric polarization direction of the ferroelectric layer is adjusted by applying grid voltage, so that the size of an antisymmetric exchange effect of an interface between the topological material layer and the ferromagnetic layer is regulated and controlled. Finally, the memory works in a Skyrmion mode or a binary mode.

The invention discloses a Dicke type detector based on a capacitance switching mechanism and a detection method, and belongs to the field of microwave measurement and radio frequency signal detection. A Dick type detector based on a capacitor switching mechanism comprises a main circuit and a control circuit. The main circuit comprises a signal switching and conditioning network, a sampling and holding network and a differential output network; the control circuit is mainly composed of a clock generator and a logic driving circuit. According to the invention, the dual-path parallel capacitance sampling and holding network is constructed, the antenna signal and the reference load signal are respectively and completely stored and held, the problem of signal amplitude attenuation caused by duty ratio modulation of a traditional detector is solved, the responsivity is multiplied, and the sensitivity of weak signal detection is improved. Strict time sequence interlocking logic is implemented under clock control, it is ensured that charge transfer is carried out only after the sampling voltage is stable and the sampling voltage is disconnected from the input end, transient interference in the switching process of the radio frequency switch can be physically isolated and restrained, and the accuracy and reliability of measurement are improved.

The utility model discloses a waste chip cleaning device for a multi-spindle drilling machine, which comprises a working table, a through groove is arranged on one side wall of the working table, a U-shaped block is fixedly arranged on the top of the working table, a groove body is arranged on the top of the working table, a motor is fixedly arranged on the bottom of the through groove, a through hole is arranged on the top of the working table, and the U-shaped block and the groove body are fixedly arranged on the bottom of the through groove. A linkage mechanism is arranged on the workbench, and a cleaning mechanism is arranged in the groove body. The linkage mechanism is arranged, the motor rotates to control the lifting block to move in the direction of the outer side wall of the screw rod, when the lifting block ascends in the direction of the outer side wall of the screw rod, the second gear on the outer side wall of the screw rod drives the first gear and the rotating shaft to rotate through the gear belt, and practicability is high; a cleaning mechanism is arranged, a rotating shaft rotates to control a moving block and a telescopic connecting rod to move in the outer side wall direction of a limiting rod, a connecting pipe and a cleaning roller are controlled to rotate, the interior of the tank body is cleaned, the working efficiency is high, and the labor cost is saved.

The utility model provides a pneumatic device and a pneumatic inclined cutter, the pneumatic device comprises a cutter handle, the top of the cutter handle is provided with an air guide ring, the bottom of the cutter handle is provided with a cutter head assembly, the air guide ring, the cutter handle and the cutter head assembly are communicated in sequence, and the air guide ring is provided with an air inlet connector and an air outlet connector. The tool bit assembly comprises a tool body internally provided with a cylinder shaft and a sliding block connected with the cylinder shaft, the tool body is provided with a tool bit air inlet connector and a tool bit air outlet connector, air entering and exiting the tool body can drive the cylinder shaft to move up and down, and therefore the sliding block is driven to move up and down. The pneumatic device has the advantages that the pneumatic device is compatible with more cutting systems, and the system does not need to be provided with a beveling module; when a pneumatic device is provided with a blade to form a pneumatic inclined cutter, the pneumatic inclined cutter takes compressed gas as a working power source, a cutting system does not need to be provided with an inclined cutting module, the working mode of a traditional inclined cutter is changed, the blade is prevented from being broken during cutting, the cutting time is saved, and the machining efficiency is improved.

The present invention discloses a variable sliding arc plasma center-graded combustion chamber head, which relates to the field of aero-engine combustion chamber structure. The first-stage swirler and the second-stage swirler are both removable and replaceable, which can reduce the repeated processing of test pieces. The function of single duty class discharge and simultaneous discharge of main combustion class and duty class can be realized, and it has the advantages of simple structure, high reliability and low consumption. The combustion chamber head includes a first-stage swirler, a second-stage swirler and a third-stage swirler from the inside to the outside, and a duty class nozzle is fixedly connected to the center of the first-stage swirler, and a venturi is provided between the first-stage swirler and the second-stage swirler; a main combustion stage nozzle is provided between the second-stage swirler and the third-stage swirler. The present invention can perform parametric research by installing swirlers of different angles and different rotation directions, avoiding various defects caused by the integrated processing of multiple sets of swirler model test pieces, and can greatly shorten the processing cycle and save economic costs.