17results about How to "Improve running quality" patented technology

The application provides a permanent magnet motor local demagnetization fault tolerance control method and system based on a parameter robust model predictive control, and is characterized in that the permanent magnet motor model after local demagnetization fault is subjected to super-localization processing to obtain a super-local model; a generalized proportional integral observer is designed to estimate and feed forward compensate the lumped disturbance caused by demagnetization in real time; the voltage and current data of adjacent sampling periods are used as real-time updates of the super-local model gain, the estimated values of the current and disturbance are obtained from the generalized proportional integral observer, and input gain online self-tuning is realized. The motor model after the fault is subjected to super-localization, the disturbance and high-order derivatives introduced by the fault are unbiasedly estimated through the generalized proportional integral demagnetization disturbance observer, and through the input gain self-tuning algorithm, the input gain in the super-local model can be calculated in real time only by using the voltage and current data of two continuous periods, so that the motor operation quality and the robust performance after the fault are improved.

The utility model relates to metal sheet processing equipment field, concretely is a kind of wire harness automatic connecting device based on uncoiling line swing shear die. Including swing shear die, height adjusting mechanism, support no.

The utility model relates to the field of petroleum chemical technology, concretely relates to a catalyst settlement system stable in operation and good in settlement effect, including clarification mechanism, sludge buffer tank, feed pipeline, sludge tank, backflow pipeline, overflow pipeline, filter press, filtrate tank and sludge discharge pipeline, the clarification mechanism includes a plurality of settlement tanks that are arranged side by side from front to back in proper order and the clarification tank that is arranged at the end of clarification mechanism, the bottom of clarification tank is provided with special ammonium sulfate solution discharge pipeline, is provided with ammonium sulfate solution pump on the ammonium sulfate solution discharge pipeline, the end of ammonium sulfate solution discharge pipeline extends to ammonium sulfate tank area, the outlet end of ammonium sulfate solution pump is equipped with a branch pipeline, this branch pipeline is connected with the feed inlet on the top of filtrate tank through regulating valve, the bottom outlet of filtrate tank is connected with the inlet of clarification mechanism through filtrate pump. The catalyst settlement system is stable in operation, and the downstream device operation cycle is prolonged.

The invention belongs to the technical field of safety maintenance, and particularly relates to a predictive maintenance method and system for a bridge crane. The invention discloses a predictive maintenance method for a bridge crane. The method comprises the following steps: monitoring and collecting state data of the bridge crane in real time through a sensor, preprocessing each piece of data, and converting the data into time sequence data; in combination with a risk assessment and fault prediction model, according to historical data and current data, assessing the remaining service life, the fault occurrence probability and the health degree of each piece of equipment; performing quantitative evaluation on the monitoring result of the equipment by using a multi-parameter weighted scoring principle according to the state judgment evaluation model, and dividing the health state of the equipment according to a scoring result; and the evaluation result is displayed on the HMI in a chart form, and corresponding maintenance measures are sent to maintenance personnel for optimization according to the result. The operation state of the bridge crane is effectively monitored and evaluated, equipment faults are predicted and prevented, and the reliability and safety of the equipment are improved.

A screw-rail type generator set protective device, relating to the field of vehicle-mounted generator technology, includes a fixed base, a base frame, a screw-nut mechanism, and a protective housing. The fixed base consists of channel steel and connecting beams. Rollers on both sides of the base frame are rolled into the channel steel grooves. The base frame contains a generator set mounting position. The screw-nut mechanism is installed between the base frame and the fixed base to drive the base frame to extend or retract. The protective housing is mounted on the base frame, with an open bottom, inspection doors and air inlet louvers on both sides, an exhaust louver at one end, an electrical maintenance door at the other end, and a filling port at the top. The base frame contains a vibration damper, and a rubber insulating pad separates the protective housing from the base frame. This invention provides robust support with the fixed base, the roller design allows for smooth extension or retraction of the base frame, the screw-nut mechanism facilitates maintenance and locks the base frame, and the protective housing protects the generator set and dissipates heat. It exhibits good stability and safety, effectively ensuring the stable operation of the generator set.

This invention relates to the field of robot control technology, and more particularly to a multimodal environmental perception adaptive robot, comprising: an environmental perception component for acquiring visual images, spatial point clouds, human body thermal distribution, temperature and humidity, and illuminance; a multimodal feature extraction component for calculating the illumination degradation factor, the approach potential of the crowd, and the environmental disturbance index; a scene analysis unit for determining whether to adapt to a dangerous, attention-based, or conventional type based on the environmental disturbance index, determining the fusion weight of the positioning mode based on the illumination degradation factor, and determining the walking speed and narration volume based on the approach potential of the crowd; a behavior strategy grader for outputting the initial speed, volume, and path planning mode; and an adaptive feedback device for monitoring the trend of the environmental disturbance index and triggering strategy upgrades. This invention achieves stable positioning under low light conditions, smooth speed and volume adjustment in dynamic crowd flow, and adaptive services with quantified environmental disturbances, ensuring the operational safety and narration quality of the ancient book exhibition area.

This utility model relates to the field of HVAC technology and discloses an HVAC filtration device that facilitates filter replacement. It includes an air inlet pipe with a quick-release mechanism for easy component maintenance. A fixing plate is symmetrically installed on the inner wall of the air inlet pipe, and a rubber pad is fixedly installed in the dovetail groove inside the fixing plate. This utility model employs an interlocking structure of the dovetail block and the dovetail groove of the fixing plate, along with a quick-locking mechanism using a baffle and a locking rod. Without the need for any tools, operators can easily disassemble and assemble the filter plate in a short time with simple push-pull and rotation actions. This simplifies the filter replacement process, improves replacement efficiency, and reduces maintenance costs. Simultaneously, the rubber pad deforms under pressure during filter plate installation, tightly filling the gap between the filter plate and the dovetail groove of the fixing plate, effectively preventing unfiltered air from leaking out, ensuring air filtration effect, and improving the operating quality of the HVAC system.

The invention relates to the technical field of software system evaluation, and discloses a software system benefit evaluation index data processing method and device, electronic equipment and a storage medium, and the method comprises the steps: determining each benefit index in each index grade, and calculating the weight of each index grade; third-level index data of the software system to be evaluated are obtained, and a fuzzy relation matrix of third-level indexes is obtained through fuzzy evaluation; and fusing the fuzzy relation matrix with the third-level index weight, the second-level index weight and the first-level index weight in a stepped manner. Fuzzy evaluation is introduced to evaluate the three-level index data of the to-be-evaluated software system, the system evaluation result is obtained based on the weight of each index level, effective evaluation of the software system is achieved, data support is provided for forming software system optimization measures, and therefore the software system operation quality and the software system utilization rate are improved, and the software system evaluation efficiency is improved. The informatization project return on investment is further increased, and the digital transformation and intelligent development of the oil field are assisted.

The utility model relates to the technical field of unmanned vehicle coding ruler cleaning, and particularly discloses an unmanned vehicle coding ruler full-automatic cleaning device which comprises an unmanned vehicle coding ruler and an air compressor, an air outlet of the air compressor is provided with an adjusting valve, the adjusting valve is provided with a two-branch PU hose, the air compressor is provided with a T-shaped support, and the T-shaped support is provided with an air inlet and an air outlet. One end, far away from the adjusting valve, of the bisection PU hose is provided with a nozzle, the bisection PU hose and the T-shaped support are arranged in parallel, the bisection PU hose and the nozzles are both installed on the T-shaped support, the bisection PU hose is located above the unmanned vehicle coding ruler, and the two nozzles are aligned to the front direction and the rear direction of the unmanned vehicle coding ruler respectively. The nozzle and the travelling crane synchronously run above the track to continuously blow dust in the coding ruler and the groove, dust and foreign matters are cleaned in time, the data reading accuracy of the code reader is improved, the equipment failure rate is reduced, the running efficiency and quality of the unmanned travelling crane are improved, and the purposes of reducing cost and improving efficiency of enterprises are achieved.

This invention discloses a coil design method, a coil, and a transformer. The method includes dividing the coil into at least a first coil and a second coil; and placing the second coil above the first coil along the height direction of the transformer. The first coil is made of a first conductor, and the second coil is made of a second conductor. The width of the second conductor is greater than the width of the first conductor, and / or the thickness of the second conductor is greater than the thickness of the first conductor. This invention can reduce temperature unevenness in the coil, improve the overall temperature rise of the coil, increase material utilization, reduce costs, improve the operating quality of the transformer, and extend the service life of the coil.

The hydraulic cylinder with high-frequency buffering device and the hydraulic suspension device are provided. The hydraulic cylinder comprises single-ear-ring cylinder bottom, cylinder cover, cylinder barrel, piston and piston rod, etc. Two oil ports are arranged on the side wall of the cylinder barrel and located at both ends of the cylinder barrel. The piston is arranged in the cylinder barrel, and the hydraulic pressure is applied to the piston to drive the piston to move in the cylinder barrel. The piston rod is connected to the piston, and the hydraulic pressure is transmitted to the piston through the piston rod. The buffering device is installed on the cylinder barrel to absorb impact force and vibration. In the buffering device, the end sealing plate is arranged at both ends of the vibration absorption cylinder body, the vibration absorption piston and the elastic device are arranged in the vibration absorption cylinder body, two vibration absorption pistons are arranged at both ends of the vibration absorption cylinder body, and the elastic device is arranged between the two vibration absorption pistons. The outer sides of the two vibration absorption pistons are oil channels, and the inner cavity of the hydraulic cylinder and the pipeline are communicated through the two oil ports. When no hydraulic pressure is applied, the elastic device presses the two vibration absorption pistons on the end sealing plate, and the gap between the vibration absorption piston and the vibration absorption cylinder body is X.

The invention discloses an urban railway multi-station cooperative train operation optimization method for multi-network integration, and the method comprises the steps: firstly analyzing the operation data and passenger flow characteristics of an existing train, and constructing a train parking mode and marshalling scheme coupling dynamic optimization model based on multi-period coordination on this basis; and then designing a heuristic algorithm, and optimizing the timetable in the Jinjing direction by taking a new Jianzhuang station of the Beijing and Jinjing intercity railway as an application object. According to the method, the inter-city railway train stop plan and marshalling scheme can be collaboratively optimized, balanced distribution of multi-station passenger flow in the same city area is realized, the operation pressure of a core hub station is effectively relieved, and the service capability and accessibility of candidate stations are improved; and meanwhile, through multi-period transport capacity dynamic adaptation, the unsatisfied passenger flow demand is reduced, the operation cost is reduced, the passenger commuting efficiency and the overall benefit of the system are improved, and technical support is provided for inter-city railway network operation and regional traffic collaborative development.

This application provides a network performance improvement method, apparatus, and storage medium, relating to the field of computer technology, to address the technical problem that general technologies cannot effectively improve network performance. The network performance improvement method includes: responding to a network performance improvement command, determining the proportion of influence of each of a plurality of influencing factors on the target cell within a preset time period; one influencing factor representing an operating state of the target cell; determining the influencing factor to be processed based on the proportion of influence of each influencing factor on the target cell and a preset network performance index of the target cell; and determining a network performance improvement strategy based on the operating state corresponding to the influencing factor to be processed.

The application discloses a wind energy conversion device for a pasture area, which comprises a supporting table and a folding unit. The top and bottom of the supporting table are respectively provided with mounting holes at equal distances in a circumferential array. The center of the supporting table is provided with a circular through groove. A wind cylinder unit is arranged above the circular through groove. A rotating unit is fixedly installed on the top of the wind cylinder unit. A first wind energy conversion unit is arranged in the wind cylinder unit. The wind energy conversion device for the pasture area has the advantages of small land occupation, convenient installation, low practical cost, high wind energy conversion efficiency, high pressure utilization of small wind power, greatly improved operation quality of the wind energy conversion device, difficulty in hurting flying animals, and the capability of cleaning ice layers and ice blocks on fan leaves in winter, and the capability of retracting the fan leaves into the device, so that the fan leaves and the wind energy conversion device are effectively protected.

A drawing type facial tissue folding machine comprises a machine cabinet, side covers, side plates, a traction feeding mechanism, a rolling slitting mechanism, a distribution folding mechanism, a jacking conveying mechanism and a downward pressing leveling mechanism, and the side covers and the side plates are arranged on the left side and the right side of the machine cabinet from outside to inside respectively. The traction feeding mechanism, the rolling slitting mechanism, the distributing and folding mechanism, the jacking and conveying mechanism and the pressing and leveling mechanism are sequentially arranged in the machine cabinet from top to bottom and located between the pair of side plates. The front rubber bending roller, the rear rubber bending roller, the anti-static device and the air suction pipe are arranged in the traction feeding mechanism, and the synchronous transmission technology that the main motor is sequentially meshed with and drives the rolling slitting mechanism and the lower wheel shaft assembly is adopted. And the first up-and-down transferring assembly, the second up-and-down transferring assembly, the first front-and-back transferring assembly, the rear jacking assembly, the second front-and-back transferring assembly and the front jacking assembly are arranged, actions are coherent, the design is exquisite, conflicts are avoided, and therefore the running quality and efficiency of the whole machine are improved.

The application relates to the technical field of steam exhaust recovery devices, and discloses a self-adaptive waste heat recovery device based on a phase change heat accumulator, which is provided with a heat medium inlet and a gas outlet on the side surface and is provided with a condensate outlet at the lower part; one tube pass unit comprises a collecting box which is divided into a first collecting cavity and a second collecting cavity by a partition plate, the first collecting cavity is connected with a refrigerant inlet pipe, and the second collecting cavity is connected with a refrigerant outlet pipe; a plurality of heat exchange pipes are arranged in the shell, and the heat exchange pipes comprise first heat exchange pipes and second heat exchange pipes. The application can continuously and stably output heating effect by introducing the phase change heat accumulator as a stable intermediate heat source. Even if the flow or temperature of the deaerator exhaust steam fluctuates, the heat accumulator can buffer and adjust through the heat storage and heat release process, effectively suppresses the sharp change of the downstream desalted water temperature, thereby guaranteeing the stability of the deaerator water working condition and improving the operation quality and efficiency of the whole thermal system.

The present application relates to power supply identification technical field, especially to a kind of industrial equipment's scene power supply plug and play identification method and device.The method includes the following steps: detecting submodule power supply insertion equipment power port, the identity information and parameter information of submodule power supply are collected, and power supply information package is obtained;Communication protocol analysis is carried out based on power supply information package, and initial identity fingerprint is generated;Based on initial identity fingerprint, power supply mother unit is driven to carry out communication protocol matching, when communication protocol matching is successful, electrical parameter distribution is carried out, and power matching parameter is output;Based on power matching parameter, initial energy supply test is carried out, and energy supply test data of submodule power supply is collected;Based on the energy supply test data, energy supply stability evaluation and power compensation adjustment are carried out, and plug-in identification operation is completed.The present application realizes the plug and play of external power supply module, reaches the fast, stable energy supply requirement of equipment, and improves equipment power management efficiency.