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9results about How to "Accurate working condition" patented technology

Indoor high-precision visible light positioning method for complex dynamic crowd environment

The invention discloses an indoor high-precision visible light positioning method for a complex dynamic crowd environment, relates to the technical field of indoor visible light communication, and aims to solve the problems in the prior art. Performing initial position calculation based on a quadrilateral measurement method in combination with the phase and intensity information of the optical signal; optimizing the initial position of the receiving end by using a QPSO algorithm; an infrared sensor collects crowd density and dynamic changes in an area in real time and generates a thermodynamic diagram, the influence of crowd flow on a light field is predicted based on a hydromechanics eddy current model in combination with an RNN network, a crowd flow eddy current model is generated, optical signals of a receiving end are optimized through a CVPA algorithm, and signal characteristics are dynamically adjusted through the eddy current effect; the FPGA carries out accurate tracking and positioning updating on the position of the APD receiving end through an EKPF filter; the weights of the QPSO, the CVPA and the EKPF are adjusted in a self-adaptive mode; and the FPGA obtains the final accurate position coordinates of the receiving end through multiple iterations. The method is suitable for real-time positioning of high-density crowds.
Owner:CHANGCHUN UNIV OF SCI & TECH

Winding system and winding core state detection method

The invention discloses a winding system and a winding core state detection method.The winding system comprises a rack, a transmission mechanism and a driving mechanism, the transmission mechanism comprises a transmission seat, a transmission shaft, a pushing and pressing mechanism and a positioning sleeve, the transmission seat is arranged on the rack, the transmission shaft is slidably and rotatably arranged on the transmission seat, and the positioning sleeve is arranged at one end of the transmission shaft; the pushing and pressing mechanism is arranged on the transmission base and can push the transmission shaft to slide in the axial direction. The driving mechanism is provided with an output shaft; a sliding fit structure is arranged between the end, away from the positioning sleeve, of the transmission shaft and the output shaft, and the transmission shaft and the output shaft can slide relatively and rotate synchronously through the sliding fit structure. The transmission mechanism further comprises a rotating sleeve, the rotating sleeve is rotatably arranged on the transmission seat through a bearing mechanism, the rotating sleeve is provided with a shaft hole in sliding fit with the transmission shaft, a positioning mechanism is arranged between the shaft hole and the transmission shaft, the rotating sleeve and the transmission shaft rotate synchronously, the winding core is driven, the winding function is achieved, and the mechanism is simple, stable and reliable.
Owner:GUANGDONG BLESSON PRECISION MASCH CO

Elevator emergency power supply power monitoring method and system

The present invention relates to the technical field of power supply power monitoring, and in particular to a method and system for monitoring the power supply of an elevator emergency power supply. The method comprises the following steps: collecting emergency state start time data; performing real-time battery power measurement of the emergency power supply battery through the emergency state start time data to obtain emergency power supply power measurement data; performing a step pulse power supply test on the elevator emergency lighting to obtain multiple groups of pulse response data of the lamp; performing real-time lamp working state judgment based on the multiple groups of pulse response data of the lamp, and periodically updating the emergency power supply power measurement data to obtain emergency power supply power monitoring data; performing gradual brightness control based on the emergency power supply power monitoring data to obtain an intelligent elevator emergency dimming strategy. The present invention realizes dynamic adjustment of the elevator emergency lighting brightness by intelligently monitoring the remaining power of the elevator emergency power supply to extend the lighting time.
Owner:HUNAN ELECTRICAL COLLEGE OF TECH

Safety rope device for air conditioner installation

This utility model relates to the field of air conditioner installation equipment and discloses a safety rope device for air conditioner installation, including a fixing plate. An anti-wear component is fixedly installed on the upper surface of the fixing plate, and a positioning component is provided at the lower part of the fixing plate. A safety rope is provided on the outer side of the anti-wear component. A sliding groove is formed on the upper part of the fixing plate. The positioning component includes a positioning plate and a connecting shaft. The positioning plate is movably connected to the bottom of the fixing plate via the connecting shaft. A slot is formed on the outer side of the positioning plate, and the connecting shaft is slidably connected to the inner wall of the sliding groove. Through the design of the positioning component, the positioning plate engages with guide posts at different positions. Combined with the fixing action of screws and locking parts, the device can be stably installed on buildings or installation structures of different widths. The sliding of the connecting shaft within the sliding groove allows the position of the positioning component to be adjusted, making installation and adjustment convenient and quick, and improving safety and work efficiency during air conditioner installation.
Owner:GUANGZHOU DEFENG ELECTROMECHANICAL ENG CO LTD

Inner fin turntable structure of battery cooler lamination machine

The utility model discloses an inner fin turntable structure of a battery cooler lamination machine, which comprises an equipment frame, an SCARA robot is arranged at the upper part of the equipment frame, a vacuum conveyor is arranged at the output end of the SCARA robot, an inner fin suction cup is arranged at the lower part of the vacuum conveyor, a material slide way is arranged on the side surface of the equipment frame, and the material slide way is provided with a plurality of inner fins. A left servo device and a right servo device are arranged at the bottom of the equipment frame, bearing seats are arranged at the output ends of the left servo device and the right servo device, and couplings are arranged on the side faces of the bearing seats. According to the inner fin rotating disc structure of the battery cooler lamination stacking machine, efficient and accurate stacking of inner fins is achieved through accurate mechanical design and automatic control technology, production efficiency is improved, labor cost is reduced, and diversified requirements of battery cooler production are met.
Owner:SHANGHAI SHUMA TECH CO LTD

Carrying integrated transport vehicle

The utility model relates to a carrying integrated transport vehicle which comprises an unmanned transfer trolley, a warehouse frame, a sliding rail assembly and a clamping assembly, the warehouse frame is located on the unmanned transfer trolley, the sliding rail assembly comprises a longitudinal sliding rail and a transverse sliding rail, the transverse sliding rail is in sliding connection with the longitudinal sliding rail, a first driving part is arranged on the longitudinal sliding rail, and a second driving part is arranged on the transverse sliding rail. The longitudinal sliding rail can extend out of the unmanned transfer trolley, the clamping assembly is in sliding connection with the transverse sliding rail, a second driving part is arranged on the transverse sliding rail, the clamping assembly comprises a telescopic part and a clamping jaw, the telescopic part comprises a sliding base and a telescopic piece, the sliding base is in sliding connection with the transverse sliding rail, and the two ends of the telescopic piece are fixedly connected with the sliding base and the clamping jaw respectively. According to the transport vehicle in the scheme, the cylindrical nuclear waste storage and transportation tank can be automatically clamped without manual assistance, the problem that the cylindrical nuclear waste storage and transportation tank rolls down when the nuclear waste storage and transportation tank is loaded is solved, and the nuclear waste storage and transportation tank can be loaded on the premise that workers are prevented from being radiated.
Owner:SUN YAT SEN UNIVERSITY SHENZHEN +2

Foundation pit intercepting structure for building engineering construction

The utility model relates to the technical field of constructional engineering construction, and discloses a foundation pit intercepting structure for constructional engineering construction, which is provided with an intercepting mechanism and a fixing mechanism, the intercepting mechanism is used for intercepting a foundation pit, and the fixing mechanism is used for controlling the movement of a baffle plate, so that the problem that the baffle plate cannot move in the excavation process of the foundation pit is solved. Treatment of underground water, sewage and rainwater is the most important problem faced by a foundation pit interception technology, due to the fact that the characteristics and behavior modes of water sources are different, targeted interception measures need to be taken, and in the actual construction process, the foundation pit interception technology is often limited by various environmental conditions such as geological conditions and water and soil load effects, and the foundation pit interception technology cannot be influenced. The problems that the interception technology needs to be better adjusted and designed in a targeted mode, the investment cost also needs to be considered in the implementation of the interception technology, and the economic feasibility of a project may be affected due to the fact that the high-quality interception technology usually needs huge investment are solved.
Owner:XINXIANG HONGTAI CONSTRUCTION ENGINEERING CO LTD

Digital prototype for key links of electrical system of spacecraft

The invention provides a digital prototype for key links of an electrical system of a spacecraft, which is a digital model of a physical prototype, can accurately reflect the characteristics of the physical prototype, has the functions of displaying and analyzing mechanical, electrical and thermal characteristics, and accurately models and simulates the core links of the physical prototype through a digital means. According to the simulation system, the simulation system and the simulation method, Multisim and LabVIEW joint simulation is carried out, dynamic simulation can be carried out on signal transmission parameters of a physical model machine so as to detect performance and potential faults of the system, simulation testing under multiple scenes and multiple working conditions is carried out through a virtual environment, and the anti-interference capability and fault tolerance of the system are evaluated. The method has the beneficial effects that through high-precision simulation and modeling, the actual working condition of the physical prototype can be accurately determined, the design scheme is closer to the design requirement, in addition, comprehensive simulation and testing can be carried out in the initial stage of design, the design reliability of the physical prototype is improved, the design period is remarkably shortened, and the development cost is reduced.
Owner:BEIJING INST OF SPACECRAFT SYST ENG +1

EDFA optical fiber signal amplification system based on intelligent gain

PendingCN122119789ASolve the problem of insufficient gain control accuracyPrecise signal characteristic parametersElectromagnetic transmissionActive medium shape and constructionControl signalSoftware engineering
The application provides an EDFA optical fiber signal amplification system based on intelligent gain, which comprises an input signal processing module for extracting optical signal characteristics, a signal amplification module for generating output optical signals through multi-stage amplification, a signal monitoring module for monitoring input and output signals in multiple dimensions, an intelligent control module for executing a gain control algorithm based on monitoring data and signal characteristics to generate a pump control signal, and a pump control module for adjusting the working state of a pump source and feeding back to the amplification module to realize intelligent gain control. The application can realize precise gain adjustment and dynamic optimization of the EDFA optical fiber signal amplification system, improve the stability and performance of the system under complex working conditions, reduce energy consumption, and enhance the reliability and transmission efficiency of the optical fiber communication system.
Owner:SHENZHEN BOYANG COMM TECH CO LTD