10results about How to "Avoid balance" patented technology

The invention provides a motor vibration noise control method and system based on modal resonance frequency prediction, and belongs to the field of motor control. The method comprises the following steps: acquiring each order of intrinsic mode frequency of the permanent magnet motor; a cost function parameter, a current constraint condition and a control target are set, and a model prediction control method is adopted to drive an inverter to operate, specifically, the current operation state quantity of the permanent magnet motor is collected; predicting a state response in a future finite time domain based on the operation state quantity; constructing a value function, and evaluating and optimizing a state change result; and selecting an optimal voltage vector, generating a pulse signal to drive an inverter to execute, obtaining a motor high-frequency electromagnetic force wave distribution condition, comparing the motor high-frequency electromagnetic force wave distribution condition with the intrinsic mode frequency of the permanent magnet motor, and optimizing an optimal voltage vector selection logic. The problems that harmonic waves are concentrated and resonance is easily caused by a fixed switching frequency modulation method in the prior art, and a passive suppression method is high in cost and poor in flexibility are solved.

The invention relates to an enterprise collaborative office management method and system, and relates to the technical field of enterprise management, and the method comprises the steps: obtaining resource use data in enterprise office; analyzing the resource use data through a threshold judgment model, and when the value of the resource use data exceeds a preset threshold, executing a resource allocation algorithm to minimize the total resource allocation deviation and load imbalance; in response to completion of execution of the resource allocation algorithm, sending an adjustment instruction to the cloud resource management platform, and adding resource allocation to the server of the enterprise; obtaining and analyzing workflow data of an enterprise, and identifying project delay factors to obtain a corresponding analysis result; according to the analysis result, executing a workflow adjustment algorithm to minimize task delay and task load imbalance; and analyzing the event mode in the working data flow, and executing an event response algorithm to optimize the event mode so as to maximize the event response efficiency and the resource utilization rate. The office management effect of an enterprise system can be improved.

The utility model belongs to bicycle lighting technical field, specifically disclose a kind of bicycle safety tail light with radar monitoring and camera function.The utility model includes tail light body, the side of tail light body is equipped with monitoring component and warning component, monitoring component includes camera module and radar module, camera module and radar module are used to real-time monitoring bicycle rear road condition, warning component includes lampwick and COB light source, the side of tail light body is equipped with lens body, through radar module in monitoring component real-time acquisition rear 200m vehicle data and synchronous code table, let rider can perceive incoming car without turning back, avoid distraction and imbalance, and through camera module whole process record road condition, can provide evidence for accident and be used for sharing, simultaneously through warning component through 300LM highlight flickering light and high-transmittance lens, form wide-angle warning range at night or in bad weather, let rear vehicle clearly see rider, make it concentrate on riding, guarantee safety.

The utility model relates to a feeding dredging device for quartz sand production, which comprises a feeding pipe, wherein a feeding hopper is arranged at the upper end of the feeding pipe; sliding holes are formed in the left end and the right end of the peripheral wall of the feeding pipe, movable plates are symmetrically arranged in the left portion and the right portion of the feeding pipe, the two movable plates are arc-shaped plates with opposite protrusions, transverse rods are connected to the opposite side faces of the two movable plates, and the free end of each transverse rod penetrates through the corresponding sliding hole in the same side; bearing plates are fixedly arranged on the outer wall of the feeding pipe on the upper side and the lower side of the sliding hole in a sleeving mode, rotating rods are rotationally connected between the left portions and the right portions of the opposite faces of the two bearing plates, the lower portion of the left rotating rod is in threaded connection with a left transverse rod through first external threads, and the lower portion of the right rotating rod is in threaded connection with a right transverse rod through second external threads; the first external thread and the second external thread are opposite in thread rotation direction. And a driving piece is arranged on the feeding pipe and is used for driving the two rotating rods to rotate anticlockwise or clockwise in the same direction. According to the utility model, the problem that quartz sand raw materials are easily blocked in the feeding channel is solved.

The utility model discloses an adjustable settlement deformation well lid which comprises a lap joint structure, a rotating shaft structure and a positioning structure, wherein the lap joint structure is installed on the inner side of a well lid frame and used for erecting a well lid body, the rotating shaft structure enables a well lid structure to achieve lifting adjustment in the well lid frame, and the positioning structure is used for locking the well lid body after the well lid body is covered. When the well lid is used and the well lid body is higher than the surrounding ground due to settlement of the ground, a cross screwdriver or an electric drill is used for rotating a first screw rod through a first cross hole to enable a first lifting block to slide downwards in a first lifting groove, so that a step of a lap joint structure slides downwards, and meanwhile, a second screw rod is rotated through a second cross hole to enable the first lifting block to slide downwards. And the second lifting block and the rotating shaft slide downwards, so that the whole well lid body is driven to descend until the well lid body is lower than the surrounding ground, the function that the height of the well lid is automatically adjusted along with ground subsidence is achieved, potential safety hazards caused by the fact that the well lid protrudes out of the ground are effectively avoided, and the road flatness and the safety of pedestrians and vehicles are improved.

This utility model discloses a wheelchair with a self-balancing structure, relating to the field of wheelchair technology. It includes a support rod with large wheels rotatably mounted on both sides. A fixed plate is fixedly connected to the top surface of the support rod, and two first fixed brackets are fixedly connected to one side of the top surface of the fixed plate. A seat cushion is mounted on the top surface of the fixed plate, and one side of the seat cushion is rotatably connected to the two first fixed brackets. A connecting rod is fixedly connected to one side of the support rod, and a shock-absorbing bracket is rotatably connected to the end of the connecting rod. Small wheels are mounted between the bottom of the shock-absorbing brackets. A second fixed bracket is fixedly connected to the top surface of the connecting rod, and an electric push rod is rotatably connected between the second fixed brackets. In this utility model, sensors can detect the tilt angle of the wheelchair in real time. Through the cooperation of the sensors, electric push rods, and other components, the angle of the seat cushion can be adjusted in real time to ensure that the seat cushion remains level with the ground, preventing the user from slipping or losing balance due to wheelchair tilting, thus enhancing the safety of wheelchair use.

This invention discloses a method and system for elastic resource orchestration in a distributed intelligent parallel simulation engine. The method includes the following steps: dynamically marking time periods based on the predicted load state parameters of each simulation process in each subsequent simulation period, obtained from the dynamic load prediction of simulation data generated by each simulation process within each simulation period in the distributed simulation simulation system; dynamically setting and optimizing scheduling instructions based on the dynamic time period marking results and simulation event rules, and executing the dynamically set scheduling instructions after sorting them based on the topological constraint characteristics of the distributed simulation simulation system; and dynamically handling faults based on the container status parameters of each simulation container during the simulation process, and based on the container status assessment results and fault types. Through dynamic load prediction and intelligent scheduling, the periodic peak resource demand in distributed simulation is effectively smoothed, significantly improving overall resource utilization.

The utility model discloses a rotational flow feed liquid distributor, relates to high-speed atomizer component technical field, including main shaft, distribution seat, shell and distribution block, main shaft passes through said distribution seat and distribution block, the distribution seat is equipped with feed inlet and distribution cavity, the distribution seat and distribution block end face attach tightly, the shell is equipped with the feed inlet and the distribution cavity, and the distribution block is equipped with the feed inlet and the distribution cavity. The distribution block is provided with a spiral groove distributed in the circumferential direction, the distribution cavity is communicated with the spiral groove, the other end face of the distribution block is provided with a tightening nut used for fastening, and the shell, the distribution block and the tightening nut form a flow channel. The technical problem to be solved by the utility model is to provide the rotational flow feed liquid distributor which improves the blanking uniformity, effectively reduces the impact force and enhances the operation stability and reliability.

The application discloses a robot self-evolution cleaning path planning method based on a dust deposition dynamics model, and belongs to the technical field of intelligent cleaning robot path planning, and comprises the following steps: ground material identification is performed on a cleaning area, and the cleaning area is divided into material subareas, and a deposition characteristic parameter group containing a cementation critical thickness value and a cementation sensitive coefficient is constructed; dust deposition thickness of each subarea is acquired based on a dust sensor, a cementation risk value is calculated, and a preventive priority cleaning area is determined; a path node execution sequence is dynamically adjusted according to the cementation risk, and a robot advancing speed and a suction force gear position are adaptively adjusted; after cleaning is completed, a cleaning efficiency feedback is constructed through a dust thickness difference before and after cleaning, the deposition characteristic parameter group is iteratively corrected, and model self-evolution updating is realized. The application can realize prospective identification and dynamic regulation and control of dust cementation risk, and improve the intelligence of path planning and cleaning operation efficiency.

This utility model relates to a novel heat-resistant glove for moxibustion, comprising a glove surface layer, an inner filling of expanded graphite heat-insulating felt, a composite non-woven fabric at the bottom of the expanded graphite heat-insulating felt, an organosilicon rubber sponge layer at the bottom of the composite non-woven fabric, a fiberglass mesh at the bottom of the organosilicon rubber sponge layer, and a first rubber pad fixedly connected at equal intervals at the bottom of the glove surface layer. The beneficial effects of this utility model are that the multi-layered structure forms a multi-composite heat insulation system, improving heat protection capabilities from the dimensions of blocking, buffering, and filtering, effectively resisting the high temperatures of moxibustion and protecting the skin of the hands. The first and second rubber pads reinforce protection for the high-temperature areas at the bottom of the glove, enhancing local heat protection performance, meeting the needs of moxibustion operation scenarios, and improving safety. The cooperation of each functional layer ensures heat insulation while improving wearing comfort through the organosilicon rubber sponge layer, achieving a balance between protection and comfort.