51results about How to "Improve power efficiency" patented technology

The utility model provides an electronic paper point screen crimping device which comprises at least one group of crimping modules and specifically comprises a driving module which comprises an X-direction driving mechanism and a Y-direction driving mechanism, and the Y-direction driving mechanism is arranged on the X-direction driving mechanism; the crimping module is installed on the Y-direction driving mechanism and comprises an opening-closing type driving mechanism, an upper crimping assembly and a lower crimping assembly, the upper crimping assembly and the lower crimping assembly are symmetrically arranged in the vertical direction, and the opening-closing type driving mechanism drives the upper crimping assembly and the lower crimping assembly to move oppositely or reversely; each of the upper crimping assembly and the lower crimping assembly comprises a fixed part, a floating part and a buffer structure connected with the fixed part, a probe is arranged in the fixed part, and the floating part is provided with a through hole for the probe to pass through; when the distance L1 between the upper crimping assembly and the lower crimping assembly is reduced to L2, the floating part pre-flattens the crimping end of the to-be-crimped product and completes correction and alignment; the buffer structure deforms, so that the floating part stops moving and the fixed part continuously moves until the upper probe and the lower probe are in contact with the surface of the product; and the visual unit is arranged above the crimping module. And the crimping precision and accuracy are improved.

This invention provides a multi-stage, multi-angle, rapid diffusion oxygen dissolving three-dimensional non-clogging microbubble aerator. An air inlet pipe and an air pipe are sequentially connected along the air inlet direction. A rapid microbubble cutting and diffusion oxygen dissolving unit is fitted outside the air inlet pipe. An inner cylinder and an outer cylinder are sequentially fitted outside the air pipe from the inside to the outside. The inner cylinder has a first inner cylinder section, a second inner cylinder section, and a third inner cylinder section sequentially along the air inlet direction. A medium-sized bubble cutting and diffusion oxygen dissolving unit is installed on the outer wall of the first inner cylinder section, a large bubble cutting and diffusion oxygen dissolving unit is installed on the outer wall of the second inner cylinder section, and an air guiding unit is installed on the outer wall of the third inner cylinder section. An air diffuser unit is installed at the air outlet of the air pipe. This multi-stage, multi-angle, rapid diffusion oxygen dissolving three-dimensional non-clogging microbubble aerator effectively cuts air into microbubbles, effectively solving the problems of clogging and short lifespan of traditional aerators after long-term use, and is suitable for aerobic aeration treatment.

This invention discloses an HPAM-DMT-NOMA method based on time-domain preprocessing, comprising: At the transmitting end, PAM modulation is performed on the input user transmission bits to generate PAM symbols; after power superposition, serial-to-parallel conversion, and Hermitian symmetry, the symbols are allocated to two signal components for HPAM-DMT transmission; the frequency domain signals of PAM-DMT and RPAM-DMT are calculated; an IFFT operation is performed to obtain the time domain signal; the time-domain preprocessed signal is calculated; the RPAM-DMT time domain signal is calculated and superimposed on the clipped PAM-DMT signal for synchronous transmission to obtain a mixed signal; a reconstructed signal is introduced, processed, and input to drive an LED for illumination; at the receiving end, the received signal is processed to generate a frequency domain signal, and finally, the multi-user signal is recovered. This scheme eliminates clipping noise interference between the mixed signal components, avoids error propagation problems, and achieves high spectral efficiency and power efficiency.

This application belongs to the field of wireless charging technology, specifically relating to a constant current and constant voltage wireless charging system and method based on a three-coil loosely coupled transformer, including an inverter circuit, a primary-side compensation circuit, a resonant circuit, a secondary-side compensation circuit, a rectifier circuit, and a filter capacitor; the resonant circuit has an anti-parallel coil structure, with the third coil located on the secondary side and a single coil on the primary side; its advantages are high misalignment tolerance, load-independent output, and high efficiency.

Embodiments of the present disclosure relate to a display device and, more particularly, may protect a color filter layer by including a substrate, a light emitting layer disposed on the substrate, an encapsulation layer disposed on the light emitting layer, a first color filter disposed on the encapsulation layer, and a first protective layer overlapping the first color filter.

This utility model discloses a voltage holding circuit, including: a rectifier bridge unit, a PFC unit, and an LLC unit; the PFC unit includes: a boost module, capacitor C1, capacitor C3, a first switch Q4, a second switch Q5, and a control module; the output terminal of the rectifier bridge unit is connected to the input terminal of the boost module and the first terminal of the second switch Q5; the second terminal of the second switch Q5 is connected to the first terminal of capacitor C3 and the first terminal of the first switch Q4; the second terminal of capacitor C3 is connected to the first terminal of capacitor C1; the second terminal of the first switch Q4 is connected to the second terminal of capacitor C1, the output terminal of the boost module, and the input terminal of the LLC unit; the control module is connected to the first switch Q4 and the second switch Q5. This voltage holding circuit has the advantages of high component utilization and low power loss. While extending the power-down hold time, it can also improve power efficiency and has good application prospects.

A light emitting diode (LED) array comprising: a plurality of pixels, each of the pixels comprising a respective group of light emitting diodes (LEDs), the plurality of pixels comprising: a first group of pixels configured to emit a first red primary wavelength; a second group of pixels configured to emit a first green primary wavelength; a third group of pixels configured to emit a first blue primary wavelength; the first red primary wavelength, the first green primary wavelength, and the first blue primary wavelength defining an RGB (red-green-blue) color gamut; and a fourth group of pixels configured to emit a non-white emission comprising a higher luminous efficacy than any of the first group of pixels or the third group of pixels to increase power efficiency of the device.

This invention discloses an isolated, fully soft-switching AC-DC-AC converter with primary and secondary side co-multiplexing and a modulation method. The converter includes a front-stage AC-DC converter, an intermediate-stage full-bridge LLC resonant converter, and a rear-stage DC-AC converter. This invention multiplexes the primary-side bridge arm of the full-bridge LLC resonant converter with the output bridge arm of the front-stage AC-DC converter, and the secondary-side bridge arm with the input bridge arm of the rear-stage DC-AC converter, forming an integrated AC-DC-AC converter structure, thereby reducing the number of components. Simultaneously, it employs PWM and phase-shift modulation strategies to control the inductor current of the four-transistor Buck-Boost circuit into a quadrilateral inductor current, thus achieving soft switching of all switching transistors. This topology is suitable for isolated AC conversion scenarios, enabling soft switching of switching devices, electrical isolation, wide-range voltage regulation, and effectively reducing the number of components. It also offers advantages such as high power density, high conversion efficiency, and high reliability.

The invention relates to a cluster distributed virtual interrupt control method, device and system. The method comprises the following steps: under the condition that a first distributed virtual interrupt controller DVIC node receives a virtual interrupt request, determining interrupt target routing information corresponding to virtual interrupt; the first DVIC node constructs a cross-chip hardware-level direct injection message according to the interrupt target routing information; and the first DVIC node sends a hardware-level direct injection message to the second DVIC node through inter-chip interconnection, and the hardware-level direct injection message directly writes a virtual interrupt into an IMSIC interrupt file of an incoming message signal interrupt controller through hardware logic by the second DVIC node. According to the invention, the cross-chip virtual interrupt delivery delay can be obviously reduced, and the system certainty is improved.

The utility model provides a kind of jacking rotary code scanning device, it is related to battery production technical field.Jacking rotary code scanning device includes first driving part, mounting piece, transmission part and second driving part.The output end of first driving part is connected with mounting piece, for driving mounting piece to lift, the number of transmission part is multiple, multiple transmission parts are movably arranged in mounting piece and are sequentially transmission connection, the output end of second driving part is connected with any one transmission part, for driving multiple transmission parts to rotate, transmission part is used to drive battery to rotate, to this is conducive to identification mechanism accurate identification battery, and by driving battery to rotate can effectively avoid the problem that identification mechanism cannot be identified due to battery surface reflection light influence identification mechanism cannot be identified.Obviously, the jacking rotary code scanning device provided by the utility model embodiment is high in degree of automation, and significantly improves identification success rate and production efficiency.

This invention relates to the field of oil and gas extraction engineering, and discloses a retrieval tube for coiled tubing operations that can determine the retrieval status. The retrieval tube includes an upper connector, a sliding rod, a spring, a slider, a connecting tube, slips, and a guide shoe tube. The slips are used to hold the fallen fish. The mechanical cooperation between the slider and the sliding rod causes a change in the opening and closing state of the fluid channel inside the tool after the fish is retrieved, resulting in a significant increase in the surface pump pressure, which is used to determine the retrieval status. This invention has a simple structure and can determine whether a fallen fish has been retrieved simply by changing the pump pressure, avoiding the uncertainty caused by relying on experience-based judgment. It is suitable for downhole retrieval operations in coiled tubing.

This invention discloses a method for grasping transparent objects based on large-model semantic segmentation. The method includes acquiring the original RGB image and original depth data of a scene containing transparent objects, performing distortion correction and spatiotemporal alignment to generate a distortion-free RGB image and an aligned depth map. From the decoupled ROI image, the rigid texture features and sub-pixel-level geometric edge features of the transparent objects are extracted. This invention achieves zero-shot semantic segmentation by introducing a visual large-model based on cueing engineering. It constructs a hybrid pose solver that integrates rigid texture matching and sub-pixel geometric edges, employs adaptive weighted optimization, and combines a dynamic feature culling mechanism based on semantic masks. This enables accurate, reliable, and automated operation of the entire process from perception and localization to grasping of transparent objects, comprehensively improving the success rate and operational efficiency of grasping transparent objects in complex scenes.

The invention relates to the technical field of aquaculture environment control, and discloses a cold region crayfish hatchery Internet of Things intelligent regulation and control system, which comprises a full-automatic hatching system, and is characterized in that the full-automatic hatching system comprises a hatching unit, an environment regulation module, an identification module, a decision module and an execution unit; the hatching unit divides the crayfish hatching farm into a plurality of groups of hatching sub-units with the same area, and the interiors of the hatching sub-units are provided with the same quantity of crayfish fertilized eggs. The execution unit regulates and controls the heater, the refrigerator, the humidifier and the dehumidifier according to control instructions (first / second / third decisions and abnormal instructions) generated by the decision module and triggers the early warning device to send early warning information to workers in an abnormal state, and an intelligent management and control system with full-process automation and manual intervention cooperation is formed. The hatching success rate and the breeding efficiency are obviously improved.

The application relates to the technical field of natural language processing and intelligent question answering, in particular to an educational administration question answering system based on semantic analysis, which comprises the following modules: a multi-modal input module that receives natural language question text, fuses real-time academic portrait data and system time into an implicit state vector; a semantic analysis module that extracts core intention features and target entity features; a logic verification module that searches for a target rule node in an educational administration logic knowledge graph based on the intention features, and compares and calculates the implicit state vector in time and state constraint conditions; a dynamic response and guidance module that generates graded response content according to a logic feasibility determination result, or generates an alternative suggestion path based on a graph association structure; the application realizes the leap from static information retrieval to dynamic decision assistance, effectively intercepts invalid operations and reduces the cost of manual interpretation.

This invention provides a cableless integrated POS device with an embedded printing module, belonging to the field of terminal welding technology. This cableless integrated POS device with an embedded printing module includes a POS counter, with an equipment platform located behind the counter. The POS counter and equipment platform are integrated into a single structure. An integrated POS machine is placed on top of the POS counter. A centering mechanism is provided between the top surface of the equipment platform and the bottom surface of the conveyor frame. This invention, by setting a centering mechanism, achieves automatic centered conveying of goods, improving scanning success rate and POS efficiency. An electric telescopic rod drives the centering plates on both sides to move synchronously towards each other with the centering frame, automatically aligning goods of different sizes directly below the barcode scanner. This avoids scanning failures, missed scans, or duplicate scans caused by product misalignment, replacing manual handheld scanning operations, significantly reducing the labor intensity of cashiers, and significantly improving overall POS efficiency.

An organic electroluminescent material and its device are disclosed. The organic electroluminescent material comprises a metal M and a ligand L having a structure of Formula 1. a A metal complex comprising the metal complex is disclosed, which can be used as a luminescent material in electroluminescent devices. Applying the metal complex to electroluminescent devices can achieve higher current efficiency, power efficiency, external quantum efficiency, and longer device lifetime at low driving voltages, thereby improving the overall performance of the device. An electroluminescent device comprising the metal complex and a compound composition comprising the metal complex are also disclosed.

The present invention relates to a blade for a gas turbine (5) provided with an airfoil (18) extending in a spanwise direction (S) from a base (21) to a tip (22); the airfoil (18) comprises an outer wall (23) defining a leading edge (27), a trailing edge (28), a pressure side (24) and a suction side (25); the airfoil (18) encloses at least one cooling duct (36; 36a, 36b, 36c) extending in the spanwise direction (S) and, in use, fed with a cooling fluid; the tip (22) is provided with a rim (29) following a tip cross-sectional profile at least along the leading edge (27), the suction side (25) and the pressure side (24); the airfoil (18) is provided with a cooling channel (42) connecting the at least one cooling duct (36; 36a) with an opening (44) at the trailing edge (28) and with at least one primary rim cooling hole (45) connected to the cooling channel (42) and arranged on the rim (29).

The application discloses a kind of underwater man-machine shared teleoperation control methods based on bilateral trust mechanism.Method includes: master end force feedback device teleoperation control underwater mechanical arm moves, so that underwater mechanical arm end underwater hand-eye camera identifies underwater target, first, the master end evaluation model of master end force feedback device is established to obtain master end trust factor;Establish the visual evaluation model of underwater hand-eye camera, and finally obtain visual trust factor by density-based visual measurement outlier rejection method;Master end trust factor, visual trust factor and each control instruction are collectively processed by man-machine shared teleoperation method based on fuzzy logic, and the desired control instruction of underwater mechanical arm is obtained to carry out man-machine shared teleoperation control.The application can effectively eliminate the outlier of visual identification, ensure the reliability of visual servo system, introduce visual auxiliary system, can further reduce the burden of operator, improve the task success rate and operation efficiency of teleoperation system.

A flyback converter with a demagnetization signal, a switching control circuit and a control method. The flyback converter includes a first transistor for switching a transformer to generate a primary side switching current and an output voltage, and a second transistor for generating a circulating current to achieve zero voltage switching of the first transistor. When the flyback converter determines that a preset number of switching cycles have been operated in a non-discontinuous conduction mode according to the primary side switching current, the flyback converter actively forces at least one switching cycle to operate in a discontinuous conduction mode. The flyback converter generates a demagnetization signal, wherein the demagnetization signal simulates a demagnetization period of the transformer to control the second transistor during the non-discontinuous conduction mode, and wherein the flyback converter corrects the demagnetization signal according to the demagnetization period during the actively forced discontinuous conduction mode.

This invention belongs to the field of automated fruit and vegetable harvesting technology, and provides a method and apparatus for continuous fruit and vegetable harvesting. The method includes: calculating the harvestability of multiple fruits and vegetables to be harvested, whereby the harvestability characterizes the harvesting success rate when obstacles exist around each fruit and vegetable; determining a first total harvesting cost based on the harvestability, missed harvesting rate, and harvesting path length of each fruit and vegetable; constructing and solving an optimization problem with the first total harvesting cost as the optimization objective to obtain the harvesting order of each fruit and vegetable, so that a robotic arm can continuously harvest multiple fruits and vegetables according to the harvesting order. The method and apparatus of this invention improve the harvesting success rate and efficiency of fruits and vegetables in dynamic clustered growth environments.

The application relates to a photovoltaic inversion system, which adopts an independent photovoltaic direct-current power supply as the input of the photovoltaic inversion system, and a first single-phase non-isolated double-buck inversion circuit and a second single-phase non-isolated double-buck inversion circuit are respectively connected with a photovoltaic direct-current power supply, forming a non-isolated photovoltaic inversion system. No additional switching device needs to be connected between the input end of the single-phase non-isolated double-buck inversion circuit and the photovoltaic direct-current power supply, and a voltage vector modulation strategy without a dead zone vector can be combined with a controller to maintain a low leakage current operation state of the photovoltaic inversion system and effectively inhibit the generation of common-mode current. The photovoltaic inversion system obtained through the above scheme not only has the advantages of small weight and volume, high power density and efficiency and low cost of the non-isolated inversion system, but also can effectively inhibit the generation of common-mode current, guarantee the quality of output electric energy and reduce the generation of electromagnetic interference, and has strong working reliability.

The present disclosure relates to a cluster distributed virtual interrupt control method, device and system. The method comprises: in the case that a first distributed virtual interrupt controller (DVIC) node receives a virtual interrupt request, determining interrupt target routing information corresponding to the virtual interrupt; the first DVIC node constructs a cross-chip hardware-level direct injection message according to the interrupt target routing information; the first DVIC node sends the hardware-level direct injection message to a second DVIC node through an inter-chip interconnection, and the hardware-level direct injection message is directly written into an incoming message signal interrupt controller (IMSIC) interrupt file by the second DVIC node through hardware logic. The present disclosure can significantly reduce the cross-chip virtual interrupt delivery delay and improve system determinacy.

The invention discloses a tea harvesting robot based on a 3-RRRU parallel mechanism. The tea harvesting robot comprises a tea harvesting and transmitting unit, a tea collecting unit and a flight carrying unit. The tea leaf picking and conveying unit adopts a 3-RRRU parallel mechanism to drive a picking clamping jaw, and has the characteristics of large working space, high rigidity and weak coupling of movement; the tea leaf collecting unit is of a positive-pressure pneumatic instantaneous blowing type structure, and at the moment when the clamping jaw cuts the tea leaves, a side air nozzle generates directional high-speed air flow to blow the fresh leaves into a collecting box along a preset channel. Air blowing is started instantly only after cutting, high energy consumption caused by continuous operation of a traditional negative pressure suction mode is avoided, and the operation cost of the system is effectively reduced. Meanwhile, the robot is carried on an aircraft, has the capacity of crossing over complex terrains, can adapt to the unstructured environment of tea gardens in hills and mountainous regions, achieves autonomous picking with full-area coverage, and breaks through the limitation of the terrains on ground walking type equipment.

This application relates to an ammonia internal combustion engine system and its control method, belonging to the field of internal combustion engines. The ammonia internal combustion engine system includes an ammonia supply device, an ammonia decomposition device, an engine block, and an ignition device. The ammonia supply device includes an ammonia injector for supplying ammonia. The ammonia decomposition device includes a catalyst for decomposing ammonia into nitrogen and hydrogen. The engine block includes a main combustion chamber. The ignition device is partially located within the main combustion chamber. The control method for the ammonia internal combustion engine includes controlling the total ammonia flow rate to 20–23 L / min, simultaneously controlling the ammonia decomposition rate in the ammonia decomposition device to 50–60%, and controlling the equivalence ratio to 1.05–1.23. This control process prioritizes power characteristics while also considering good burnout and emission characteristics. It not only provides a reference for the design and application of ammonia internal combustion engines but also represents a practical control method for ammonia internal combustion engines.

The application discloses a knee joint rehabilitation system driven by a variable stiffness rope, which comprises a liftable handrail type rehabilitation wheelchair, a variable stiffness rope driving system, an exoskeleton waist stepless adjusting mechanism and an exoskeleton leg mechanism; the variable stiffness rope driving system comprises two variable stiffness rope driving modules and is arranged on the back of the wheelchair; the exoskeleton leg mechanism drives the flexion and extension movement of the knee joint and the ankle joint of the exoskeleton in the exoskeleton leg mechanism through the flexion steel wire rope and the extension steel wire rope in the variable stiffness rope driving module. The application satisfies the requirement that the handrail is lowered when the patient is in a sitting position for training, and when the sitting position training is mature, the patient can stand up by relying on the raised handrail with both hands and trying to put the feet on the ground.

This invention provides a single-drive joint wheeled-leg amphibious robot and its control method. The robot includes a main body module, a left tilt-rotor power module, a right tilt-rotor power module, a left telescopic wheel-leg joint power module, a right telescopic wheel-leg joint power module, and electronic equipment. The control method includes a flight mode, a ground mode, and a transition mode. The flight mode includes forward and backward movement control, lifting and rolling motion control, and yaw motion control. The transition mode includes switching from ground motion mode to airborne flight mode and vice versa. This invention extends endurance and can be applied to missions such as road traffic monitoring, search and rescue in damaged buildings after disasters, exploration of unknown mines in the wild, geological exploration, and covert reconnaissance, and has significant meaning and value for the future.

The utility model relates to a glove embryo mouth supporting device and belongs to the glove production technical field. It aims at solving the problem that the existing single drive mouth supporting device cannot be adjusted horizontally and the die sleeve accuracy is poor. The device comprises a moving platform, a first movable part and a second movable part slidingly arranged on the platform, and a plurality of support plate assemblies. The left support plate and the right support plate of the support plate assembly are arranged on the first movable part and the second movable part respectively. The first drive mechanism and the second drive mechanism are arranged independently and are used for driving the first movable part and the second movable part to move respectively. By independently controlling the two drive mechanisms, the center line of the opening of the support plate assembly can be horizontally offset when the glove embryo is opened, and the position can be adjusted in real time. The utility model breaks the rigid structure of the traditional device through the design of double drive independent control, can accurately compensate the position when the die sleeve fails, thereby significantly improving the die sleeve success rate and the production efficiency and enhancing the adaptability of the equipment.

The application discloses a micro-scale pulse detonation Tesla turbine shaft engine and a unit stack type power system, and relates to the field of engine technology.The micro-scale pulse detonation Tesla turbine shaft engine comprises a micro-scale pulse detonation combustion chamber and a Tesla turbine.The micro-scale pulse detonation combustion chamber is used for generating airflow pulses and comprises a spiral channel.The spiral channel outlet end of the Tesla turbine and the micro-scale pulse detonation combustion chamber is connected in communication, used for converting kinetic energy of the airflow pulses into shaft work for output, and providing an initial explosion pressure for the micro-scale pulse detonation combustion chamber.The micro-scale pulse detonation Tesla turbine shaft engine uses a micro-scale pulse detonation tube to replace a nozzle which limits the efficiency of the Tesla turbine, and uses a Tesla turbine to replace a conventional blade turbine to convert the energy of the strong pulsation characteristic detonation gas, so that the efficiency of the detonation turbine engine is improved.

Disclosed are an organic electroluminescent material and a device thereof. The organic electroluminescent material is a metal complex comprising a metal M and a ligand L having a structure of formula 1 a The metal complex has a lower evaporation temperature, which is conducive to reducing energy consumption in the device preparation process, and can be applied to an electroluminescent device as a luminescent material. When the metal complex is applied to an electroluminescent device, higher device efficiency and longer device lifetime can be achieved, and better device performance can be provided. An electroluminescent device comprising the metal complex and a compound composition comprising the metal complex are also disclosed.

The application discloses a novel low-freedom wheel-foot switching moon car, and particularly relates to the field of moon surface material transfer vehicles. The moon car comprises a main body provided with a storage space, symmetrical solar cell panels arranged on the main body, storage batteries electrically connected to the solar cell panels, the storage batteries arranged on the main body, a target recognition device arranged on the main body and used for recognizing objects on the moon surface, a plurality of top plates arranged at intervals on the bottom of the main body, two connecting rods arranged at intervals on all the top plates, two fixed rods arranged in parallel and connected to the two connecting rods, and a leg device connected between the two fixed rods, wherein the leg device can drive the main body to move and to pass over obstacles through lifting. The application solves the problem of poor obstacle passing capability of the existing moon surface material transfer vehicles, and improves the safety and stability of moon surface material transfer.