23results about How to "Reduce control difficulty" patented technology

The invention relates to the field of lamps, and discloses a light guide part, a lamp and a carrier, the light guide part comprises at least two light guide sections which are arranged in sequence, and every two adjacent light guide sections are connected through a connecting section; wherein each light guide section is provided with a light inlet part and a light outlet part, the light inlet parts are used for allowing light of the light-emitting assembly to enter the light guide sections, the light outlet parts are used for allowing the light of the light guide sections to be emitted, and the connecting sections are configured to limit at least part of the light to be transmitted between the two adjacent light guide sections. The light guide part is designed to be of the structure that the at least two light guide sections and the connecting sections are alternately connected, independent segmented control over all the light guide sections can be achieved, for example, the on-off states of different light guide sections are independently adjusted, or differentiated color output of all the light guide sections is achieved, the problem that a traditional light guide part is single in light emitting effect is effectively solved, and the light guide part is more convenient to use. And diversified and differentiated light emitting requirements are fully met. The connecting sections can effectively limit light transmission between the adjacent light guide sections, and the light crosstalk phenomenon is avoided.

This utility model discloses an adjustable two-dimensional tail nozzle, belonging to the field of two-dimensional tail nozzle technology; it includes a connected engine and an adapter casing. A servo is provided on one side of the adapter casing. The output side of the adapter casing consists of a rectangular opening formed by two oppositely arranged fixed plates and two oppositely arranged adjusting plates. A power arm is provided at the output end of the servo. The right end of the power arm is connected to two parallel first connecting rods by a pin shaft. The other ends of the two first connecting rods are respectively connected to two second connecting rods. It can be applied to small afterburning turbojet engines to improve the flight speed of UAVs. Its structure is simple. The synchronous opening and closing movement of the adjusting plates is achieved through a single servo drive source, reducing the control difficulty, realizing engine thrust adjustment, reducing the number of structures, and making it lightweight, highly reliable, and low in cost. By setting a support rod on the outside of the adjusting plate, the adjusting plate can be limited. The structure is simple and the use effect is good.

This utility model relates to an intelligent water temperature control module, characterized by comprising a flow regulation module, a pressure balancing module, and a temperature control module. The flow regulation module includes a first valve seat and a flow regulating valve core. The first valve seat has a first cold water inlet channel, a first hot water inlet channel, a flow regulating valve core mounting cavity, a first cold water outlet channel, and a first hot water outlet channel. The pressure balancing module includes a second valve seat and a balancing valve core. The second valve seat has a second cold water inlet channel, a second hot water inlet channel, a balancing valve core mounting cavity, a second cold water outlet channel, and a second hot water outlet channel. The temperature control module includes a third valve seat and a temperature control valve core. The third valve seat has a third cold water inlet channel, a third hot water inlet channel, a temperature control valve core mounting cavity, a mixing chamber, and a mixed water outlet channel. Each module exists independently and is independently controlled, simplifying the control method, reducing control and manufacturing difficulty, improving the control accuracy of water flow and temperature, and allowing for selection and combination of different modules.

This invention relates to the field of agricultural intelligent equipment and machine vision technology, and discloses a method for weed detection and growth point localization based on shared features. The method constructs a collaborative dataset containing weed detection labels and growth point labels, utilizes a shared feature extraction network to extract multi-scale features, and sets detection task branches and growth point localization branches in a unified feature space to achieve joint modeling of weed detection and growth point localization. Then, adaptive positive sample selection is performed based on the joint cost between candidate sample points and labeled growth points, and joint training is conducted using detection loss, growth point localization classification loss, and growth point localization regression loss. During the inference stage, the method outputs weed detection results and growth point localization results, and generates target point information. This method can reduce redundant calculations and error cascading in the multi-stage processing, and improve the accuracy of growth point localization and the stability of target point output in complex farmland scenarios.

The invention relates to a solid fuel combustion characteristic test technology, and aims to provide a focusing single particle suspension variable atmosphere ignition combustion experiment device and method. A second microporous plate and a feed hopper are arranged at the top of a combustion chamber main body of the device, and a first microporous plate and a gas buffer cavity are arranged at the bottom; the two laser emitters are arranged in an included angle shape, and the energy of a single laser beam is lower than a fuel particle ignition threshold value; the two paths of laser intersect in the central area of the cavity to form a space energy focus, and the superposed energy of the two beams of laser can be absorbed at the position to reach an ignition threshold value; and light paths of diagnosis equipment in the optical acquisition module are intersected in a focus area. According to the invention, through a strategy of airflow disturbance and microwell plate blocking, particles completely move in airflow; the ignition behavior has spatial selectivity, the success rate is high and controllable, and the research is closer to the actual application scene. Through the design of single-particle fixed-point triggering, the system complexity and the control difficulty can be reduced, and the operation stability and the experiment repeatability can be improved.

The present application relates to the technical field of photovoltaic module cleaning, and specifically relates to a photovoltaic cleaning robot control method, system, device and storage medium, wherein the method comprises: obtaining a preset trajectory; obtaining a control signal in the process of traveling; the control signal is used to update the traveling parameter, including a longitudinal control signal and a transverse control signal; when the longitudinal control signal is greater than a preset target longitudinal threshold, the target control mode is a first control mode, and a target master control signal is filtered out, including: if the longitudinal control signal is less than a first longitudinal threshold and the transverse control signal is greater than or equal to a first transverse threshold, the transverse control signal is taken as the target master control signal; if the longitudinal control signal is greater than or equal to a second longitudinal threshold and the transverse control signal is less than a second transverse threshold, the longitudinal control signal is taken as the target master control signal. The present application provides an efficient cooperation mechanism of constant speed cruise and manual intervention, which can greatly improve the cleaning efficiency of photovoltaic modules.

This invention relates to the field of overhead contact line electrified highway heavy trucks, and discloses an energy hub system including a pre-charging module, a first input regulator, a first bidirectional DC transformer, a second input regulator, and a second bidirectional DC transformer. A first end of the input side of the first input regulator is connected to a first output end of the overhead contact line, and the output side of the first input regulator is connected to the input side of the first bidirectional DC transformer. The output side of the first bidirectional DC transformer is connected to the pre-charging module. A first end of the input side of the second input regulator is connected to a second end of the input side of the first input regulator, and the second end of the input side of the second input regulator is connected to a second output end of the overhead contact line. The output side of the second input regulator is connected to the input side of the second bidirectional DC transformer, and the output side of the second bidirectional DC transformer is connected to the pre-charging module.

This invention discloses an adaptive energy-saving driving mode control method for new energy sanitation vehicles and a new energy sanitation vehicle. The method includes: acquiring the vehicle's real-time load status and superstructure operation status; determining a target driving mode by matching a preset driving mode mapping relationship based on the vehicle's real-time load status and superstructure operation status; if the current driving mode is inconsistent with the target driving mode, the vehicle controller automatically switches the current driving mode to the target driving mode. This invention pioneers adaptive driving mode control based on load status and superstructure operation status, solving the problems of energy waste and tire wear caused by the mismatch between power and load, adapting to the constant-speed, low-speed driving requirements of sanitation vehicles during cleaning operations, reducing the difficulty of driver control, and improving driving economy and safety.

This application relates to a magnetic levitation pump, which includes a pump casing, an impeller, a drive motor, and an axial drive assembly. The pump casing has spaced-apart pressurization chambers and motor chambers. The impeller is rotatably suspended in the pressurization chamber. The drive motor includes a rotor and a stator. The rotor is fixedly connected to the impeller, and the stator is disposed in the motor chamber. The stator and rotor cooperate to generate a rotating magnetic field that can rotate the impeller. The axial drive assembly includes a first magnetic ring and a first coil. The first magnetic ring is fixedly connected to the impeller, and the first coil is disposed in the motor chamber. The first coil and the first magnetic ring cooperate to adjust the axial force that levitates the impeller. This application provides a hardware foundation for independent control of the impeller's rotational speed and levitation height by using the cooperation between the stator and the rotor, and the cooperation between the first coil and the first magnetic ring. This allows the control of the impeller's rotational speed and levitation height to be controlled by two separate systems, eliminating the need for complex decoupling and reducing the difficulty of impeller control.

The application provides a wet grinding and polishing device and a polishing control system, and belongs to the technical field of polishing devices. The polishing device comprises a polishing table, a polishing piece and a control assembly. The polishing piece has a working surface and a first channel, and the first channel is in communication with the control assembly. The control assembly comprises a control chamber and a movable block. The control chamber has a negative pressure port, an atmospheric pressure port, a cleaning port and a connecting port in communication with the first channel. The movable block is movably installed in the control chamber and has a second channel. One end of the second channel is in communication with the connecting port, and the other end is a butt joint end. In the case that the butt joint end is in communication with the atmospheric pressure port, the movable block can respond to the negative pressure port to realize the communication between the butt joint end and the negative pressure port, or the movable block can respond to the cleaning port to realize the communication between the butt joint end and the cleaning port. The application realizes the switching of the polishing device state under the driving of the negative pressure source and the cleaning assembly by setting the movement of the movable block, and simplifies the pipeline structure of the polishing device.

This invention discloses a narrowband reflector waveguide and reflector based on a side-coupled Bragg grating resonant cavity, relating to the field of optoelectronics. It includes a main waveguide and a resonant cavity waveguide arranged in parallel. The main waveguide supports TE0 mode transmission, while the resonant cavity waveguide supports both TE0 and TE1 mode transmission. The main waveguide and the resonant cavity waveguide form an asymmetric directional coupling region through side coupling. A first resonant mode and a second resonant mode are formed within the resonant cavity waveguide. A TE0 mode optical signal is input to the main waveguide and coupled to the resonant cavity waveguide, where it is converted into a TE1 mode optical signal. Under the synergistic effect of the first and second resonant modes, the TE1 mode optical signal generates narrowband reflected light of the desired wavelength in TE1 mode. This TE1 mode narrowband reflected light is coupled back to the main waveguide and converted into TE0 mode narrowband reflected light, which is then output from the main waveguide. This narrowband reflector exhibits high reflectivity, narrow linewidth, high side-mode suppression ratio, and good process robustness.

This invention discloses a miniature bidirectional crawling robot based on vibration mode control, comprising a support frame, a drive device, and a power system. The power system consists of an elastic element, a flexible four-bar linkage, and crawling feet. One end of the elastic element is fixed to the support frame, and the other end is connected to the flexible four-bar linkage. The other end of the flexible four-bar linkage is fixed, with the crawling feet connected in its middle section. The elastic element can generate different vibration modes under different frequency excitations. The drive device can drive the elastic element to undergo forced vibration, which in turn drives the crawling feet relative to the ground through the flexible four-bar linkage to achieve bidirectional crawling. When the power system is in first-order vibration, the robot crawls forward; when the power system is in second-order vibration, the robot crawls backward. Thus, by changing the vibration mode of the elastic element, the robot can be controlled to achieve bidirectional crawling motion. This invention has a simple structure, high reliability, convenient bidirectional motion control, great miniaturization potential, and fast crawling speed.

This invention belongs to the field of vibration damper technology and discloses a flow-dividing control valve and a vibration damper. The flow-dividing control valve is connected to a vibration damper, which has an upper chamber, a lower chamber, and a low-pressure chamber. The flow-dividing control valve includes a recovery chamber, a compression chamber, a manifold chamber, a recovery valve assembly, a compression valve assembly, and a control valve assembly. The recovery chamber communicates with the upper chamber of the vibration damper, and the compression chamber communicates with the lower chamber. The recovery chamber and the manifold chamber are connected or disconnected via the recovery valve assembly, and the compression chamber and the manifold chamber are connected or disconnected via the compression valve assembly. The control valve assembly is used to adjust the flow area between the manifold chamber and the low-pressure chamber of the vibration damper. The flow-dividing control valve and vibration damper provided by this invention can achieve independent adjustment of the damping force during the recovery and compression strokes, while also having a compact structure, high integration, and low production, manufacturing, and maintenance costs.

This utility model discloses an intelligent water dispensing device and system, relating to the field of smart home technology. The intelligent water dispensing device includes: a processor, a water dispensing control module, a panel-type touch control module, a side-plate-type touch control module, and a support-type touch control module. The panel-type touch control module has at least one function button. A first touch sensor covers the entire outer surface of the side-plate-type touch control module, and a second touch sensor covers the entire outer surface of the support-type touch control module. The processor, in response to trigger signals from the function buttons, controls the water dispensing control module to perform water dispensing tasks, stop water dispensing tasks, temperature adjustment tasks, or flow adjustment tasks; and, in response to trigger signals from the first touch sensor and / or the second touch sensor, controls the water dispensing control module to perform a stop water dispensing task. The technical solution of this utility model can reduce the control difficulty of water dispensing devices and improve their control effect.

The utility model discloses an embodiment provides a kind of mechanical arm and robot, wherein, mechanical arm includes end pose keeping component, and first arm section, second arm section and end connecting member are sequentially connected and arranged from base end to end;Second arm section, it can rotate around the end of first arm section relative to first arm section;End connecting member, its base end is connected with the end of second arm section and end pose keeping component respectively, its end is used to be connected with end effector;Its end can be around second pivot or third pivot relative to its base end and be rotated with initiative flexibility, so that end connecting member can adjust the pitch angle and roll angle of its end relative to its base end;End pose keeping component is connected with first arm section, second arm section and end connecting member respectively, so that the pitch angle and roll angle of end connecting member remain unchanged when second arm section rotates around first pivot.In the realization of end pose adjustment of mechanical arm, the service life of mechanical arm is prolonged.

This invention relates to a rule-based coordinated control method for wave energy independent power generation, storage, and utilization in a wave energy independent power generation system. It is applicable to the fields of wave energy power generation and electrochemical energy storage. The technical solution adopted in this invention is: a rule-based coordinated control method for wave energy independent power generation, storage, and utilization in a wave energy independent power generation system, characterized in that: the wave energy independent power generation system includes a power generation unit, an energy storage unit, an energy consumption unit, and a system coordination controller; the power generation unit includes a power generation branch, a power consumption branch, and a power generation unit controller; the energy storage unit includes an energy storage branch and an energy storage unit controller; the energy consumption unit includes a non-self-consumption AC / DC load branch and a load controller; the power generation branch of the power generation unit is connected to the power consumption branch, the energy storage branch, and the non-self-consumption AC / DC load branch via a DC bus.

This invention relates to the field of aircraft technology, particularly to an amphibious multimodal unmanned aerial vehicle (UAV), solving the technical problems of existing amphibious UAVs, such as limited movement modes, overly complex structures, and high costs. It comprises a main frame, an articulated deformable arm unit, and a propeller-integrated composite actuator unit. The main frame includes a fuselage frame, a battery compartment, and landing gear. The articulated deformable arm unit includes a first-stage connecting arm, a second-stage connecting arm, a third-stage connecting arm, and a rotor drive motor. The propeller-integrated composite actuator unit includes a propeller, a drive gear, and a brushless motor. The propeller is integrally formed with a cylindrical protective cover. The output shaft of the brushless motor is connected to the drive gear via a planetary gearbox. The cylindrical protective cover has an annular gear ring that meshes with the drive gear. Through the coordinated operation of the deformable arm unit and the propeller-integrated composite actuator unit, the UAV achieves multimodal active switching capabilities, including flight, driving, walking, crouching, rolling, and standing.

The utility model discloses an embodiment provides a kind of measuring head, the measuring head includes main body, main body includes at least one spring parallelogram assembly, spring parallelogram assembly includes the plate body that is arranged in parallel along first direction, the connecting plate being arranged between plate body and the spring leaf of connecting adjacent plate body and connecting plate, and spring parallelogram assembly further includes the displacement sensor being arranged along first direction, displacement sensor includes the coil with inner hole and the magnet bar being inserted in inner hole, this structure is not sensitive to dust, oil stain, cutting fluid etc. due to coil and magnet bar, expand the environmental adaptability of three coordinate measuring machine, simultaneously, relatively insensitive to mechanical vibration, and coil and magnet bar between it can be set larger gap, reduce the control difficulty of three coordinate measuring machine and improve detection precision, in addition, the temperature coefficient of magnet and coil material is relatively stable, and there is no physical contact between magnet bar and coil, precision will not be reduced due to mechanical wear.

The application discloses a wind power coupling, which comprises a middle pipe and coupling flanges arranged at two ends of the middle pipe, and a winding part is arranged on the outer peripheral wall of the coupling flanges; and the middle pipe is formed by winding and solidifying glass fiber reinforced plastic on the winding part. The application has the advantages of simple processing, low process control difficulty, good structural stability and strong applicability.

This invention discloses a method for coupling and welding optical devices to achieve dynamic compensation for high and low temperature tracking errors, relating to the field of optical communication device manufacturing. The method includes: clamping and powering the device, performing beam energy scanning to establish a beam energy coordinate model; after completing the beam waist optical power coupling, setting the welding position and initial energy value; performing height compensation on the fiber port before welding and recording the optical power at key points; performing three welding operations sequentially, judging the trend of optical power change and a preset threshold after each welding, and dynamically adjusting the subsequent welding energy; after welding, performing high and low temperature control on the laser TO stage, testing the high and low temperature tracking error, and dynamically adjusting the fiber port height compensation value before welding of subsequent products based on the test results. This invention forms an autonomous learning correction mechanism through dynamic energy compensation and TE test feedback during the coupling and welding process, which can effectively improve the yield of optical device TE indicators, integrate production processes, and reduce overall manufacturing costs.

This invention discloses a linear displacement actuator based on a single-pass shape memory alloy, comprising a housing, within which a movable cam is disposed. An auxiliary spring and a shape memory alloy spring are respectively disposed on opposite sides of the movable cam. Electrode plate I and electrode plate II are respectively disposed at both ends of the shape memory alloy spring. An output rod is connected to the movable cam via rollers. This invention solves the problem of difficulty in achieving high-precision deformation control in existing actuators due to the nonlinear deformation characteristics of shape memory alloys.

The utility model relates to a kind of general wireless power supply system and its wireless power supply article table and dining table turntable, wherein general wireless power supply system includes, wireless power supply circuit, for generating inductive magnetic field;Wireless power supply circuit includes transmitter and wireless transmitting coil group electrically connected with each other;Wireless transmitting coil group includes series transmitting circuit, more than one wireless transmitting coil is arranged on series transmitting circuit, two groups of more than one series transmitting circuit are connected in parallel to constitute wireless transmitting coil group, transmitter controls more than one wireless transmitting coil;Wireless control circuit is used to control wireless power supply circuit;Wireless control circuit includes step-down chip and drive chip, step-down chip is electrically connected drive chip;Drive chip is electrically connected transmitter and outputs set power electric energy to it.The transmitter in the system can control multiple transmitting coils simultaneously, greatly simplify the control circuit of multi-coil system, realize multi-coil control, reduce control difficulty and manufacturing cost.

This invention relates to a closed-loop axial hydrostatic / hydrostatic bearing spindle system for an inertial friction welding machine. The invention aims to address the problem that in inertial friction welding machines, the system cannot adaptively adjust the oil film thickness of the hydrostatic / hydrostatic thrust bearing according to the magnitude of the axial upsetting force from start to finish, thus failing to form a fully closed-loop system. The spindle system is equipped with opposing double-sided hydrostatic / hydrostatic thrust bearings. One side is a load-bearing hydrostatic / hydrostatic thrust bearing (11), and the other side is a non-load-bearing hydrostatic / hydrostatic thrust bearing (12). The non-load-bearing hydrostatic / hydrostatic bearing (12) acts as a back pressure, improving the oil film stability and stiffness of the load-bearing hydrostatic / hydrostatic thrust bearing (11), increasing welding accuracy, facilitating control of axial shortening, and improving welding stability and efficiency. The specific structure is shown in Figure 1.