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332results about How to "High Acquisition Accuracy" patented technology

Liquid cooling server intelligent temperature control method based on local software monitoring and liquid cooling server

The invention relates to the technical field of server temperature control, and discloses a liquid cooling server intelligent temperature control method based on local software monitoring, and the method comprises the following steps: data collection: collecting hardware temperature data and task load data of a liquid cooling server through an embedded real-time monitoring module; temperature prediction: based on the hardware temperature data and the task load data, utilizing a prediction algorithm to analyze the temperature change trend of the server in a period of time in the future; regulation and control decision making: according to the temperature change trend, generating regulation and control parameters for regulating the flow of the cooling liquid and the target temperature of the cooling liquid; the invention further discloses a liquid cooling server which comprises an embedded real-time monitoring module, a distributed control unit, a cooling loop module and a local off-line temperature control module. Through the dynamic temperature control algorithm, the distributed control unit and the local temperature control module, real-time accurate regulation and control, efficient response and independent operation under the condition of network disconnection are achieved, and the reliability and adaptability of the system are improved.
Owner:BEIJING QIBU TIANXIA TECH CO LTD

Bridge structure detection method based on unmanned aerial vehicle, product, medium and equipment

The invention discloses a bridge structure detection method based on an unmanned aerial vehicle, a product, a medium and equipment, and relates to the technical field of bridge structure detection, and the method comprises the steps: obtaining the basic data of a bridge structure, and constructing a three-dimensional model according to the basic data; layering the three-dimensional model of the bridge structure according to a preset interval, and calculating an initial path of the unmanned aerial vehicle; optimizing the initial path by adopting a gradient descent method to obtain an optimal path of the unmanned aerial vehicle; acquiring to-be-detected data of the bridge structure based on the optimal path of the unmanned aerial vehicle; preprocessing the to-be-detected data to obtain preprocessed to-be-detected data; and performing crack detection and deformation detection based on the preprocessed to-be-detected data to realize bridge structure detection. According to the bridge structure detection method based on the unmanned aerial vehicle, the product, the medium and the equipment, efficient and accurate detection of the bridge structure can be realized.
Owner:ZHEJIANG UNIV

Multispectral LED detection light source synchronous control method, device and equipment and storage medium

The invention relates to the technical field of light source control, and discloses a multispectral LED detection light source synchronous control method, device and equipment and a storage medium. The method comprises the following steps: carrying out double-interlaced spectral data sampling on a light source, and carrying out baseline extraction and compensation correction on preset three-dimensional spectral parameters; mapping of multi-dimensional mixed domain time sequence characteristics and decomposition of working characteristic tensors are carried out on the corrected calibration spectrum data, and modulation of recursive phases and group delay compensation calculation are carried out; performing crosstalk compensation of a multi-stage LED light source channel and suppression reconstruction of a multi-harmonic component on the light source phase compensation vector subjected to compensation calculation to generate light source correction control data; and performing light source driving signal synthesis on the light source correction control data to obtain a light source driving waveform sequence, and performing light source channel distribution and synchronous adjustment on the light source driving waveform sequence to generate a light source synchronous control result of the target multispectral LED detection light source. According to the invention, high-precision synchronous control of the multispectral LED detection light source is realized.
Owner:SHENZHEN KINGUNION LIGHTING CO LTD

Pressure control method and device for accurately adjusting air pressure intensity

The invention relates to the technical field of air pressure intensity adjustment, and discloses a pressure control method and device for accurately adjusting air pressure intensity, and the method comprises the steps: carrying out the digital conversion and temperature and humidity compensation of an original pressure signal collected by a pressure sensing array, and obtaining a pressure data matrix and a pressure gradient matrix; calculating a pressure distribution mass center and a pressure fluctuation frequency spectrum to obtain a pressure space distribution characteristic matrix and a pressure time domain characteristic matrix; inputting a three-state Markov model for dynamic state identification to obtain a pressure state transition probability matrix and a pressure response prediction matrix; constructing an objective function containing a pressure tracking error term and an organization safety constraint term, and solving to obtain a PID control parameter matrix and a pressure safety limit matrix; and constructing a three-stage control system comprising a basic controller, an interference compensator and a safety protector, and outputting an air pressure regulation driving signal. According to the method, high-precision pressure sensing control is realized.
Owner:SHENZHEN DONGJILIAN MEDICAL TECH CO LTD

Integrated airborne communication antenna equipment and communication method

The invention relates to integrated airborne communication antenna equipment and a communication method. The method comprises the following steps: carrying out CSI data acquisition and space-time focus modulation on a communication channel to obtain CSI space-time characteristic data; performing residual vector quantization operation to generate a quantized data stream, and performing recursive coding processing to obtain a target data stream; mapping the target data stream to a three-dimensional tensor space, constructing a real value tensor model, and performing iterative operation to obtain a CSI feature vector; performing fractional order wavelet transform decomposition on the CSI feature vector to obtain a radio frequency feature set, and inputting the radio frequency feature set into a federal fractional scattering network for feature processing to obtain an identity authentication result; and calculating an amplitude-phase weight coefficient of the antenna array, generating a beam parameter, and performing compensation matrix operation on the beam parameter according to the CSI feature vector to obtain a pre-coded signal. According to the invention, the dynamic adjustment of the antenna beam parameters is realized, and the accuracy and anti-interference capability of beam forming are improved.
Owner:SHENZHEN ASIA PACIFIC AVIATION TECH CO LTD

Photovoltaic panel defect detection system and method based on unmanned aerial vehicle and machine vision

The invention discloses a photovoltaic panel defect detection system and method based on unmanned aerial vehicle and machine vision, the system comprises an unmanned aerial vehicle, a visible light lens and an EL lens, the EL lens is connected with the input end of an image collection module through a wireless network, and the output end of the image collection module is connected with the input end of an image processing module; the output end of the central processor is connected with the defect discrimination module; the unmanned aerial vehicle firstly carries a visible light lens and is used for automatically planning a route according to a given area range to carry out primary high-altitude aerial photography and simulated mesoscale aerial photography; secondly, carrying an EL lens, and carrying out multi-view adaptive directional high-precision shooting according to a route planning path; the image processing module is used for correcting a photovoltaic panel image collected by an EL lens, defect features are extracted through a SimAM-OfficientNetV2 network model, a sample set is classified into a defect-free sample and a defect sample, high-precision real-time detection is carried out on various defects existing in the image through a YOLOV9 network model, and rapid discrimination of the defects is achieved.
Owner:SUZHOU UNIV OF SCI & TECH

Parameter acquisition method and device, medium and vehicle

The embodiment of the invention provides a parameter acquisition method and device, a medium and a vehicle, and relates to the technical field of vehicles. According to the parameter acquisition method provided by the embodiment of the invention, the driving state information such as the three-axis acceleration, the three-axis angular velocity, the real-time vehicle speed and the output torque is acquired through the sensor equipped on the vehicle, and the algorithm such as the unscented Kalman filtering and the recursive least square with the forgetting factor is combined; the mass of the vehicle and the road gradient can be obtained with low cost, high real-time performance and high precision. The algorithms have advantages in processing nonlinear systems and dynamic changes, and can better adapt to complex working conditions, reduce interference of noise and errors and improve the vehicle quality and the acquisition precision and real-time performance of road gradient parameters especially under the complex working conditions of rapid acceleration, rapid deceleration, up and down of abrupt slopes and the like.
Owner:LIUZHOU WULING NEW ENERGY VEHICLE CO LTD

Beidou positioning terminal for electric power

The invention discloses a Beidou positioning terminal for electric power, relates to the technical field of radio, and effectively solves the problem that remote terrain signals are limited in power grid inspection through a signal enhancement module. The signal enhancement module evaluates a signal coverage index Sg in real time by using multi-band signals of a low-orbit reflection table and a ground radiation device, ensures that the signals continuously cover a complex area through frequency and power adjustment, and ensures the stability and precision of inspection data; the data acquisition module is combined with the electromagnetic interference detector to monitor the electromagnetic interference intensity Ds near the high-voltage power grid in real time and construct an inspection related data set, and the state prediction model is used to capture the positioning dynamic state near the power grid, so that the stability and accuracy of the terminal in a complex environment are ensured. And the precision optimization module is used for dealing with high-precision positioning in inspection requirements, correcting a deviation vector # imgabs0 # through calculation and evaluation, triggering self-inspection, and ensuring positioning precision and updating of a three-dimensional point cloud map.
Owner:STATE GRID WUWEI POWER SUPPLY CO

Sensor-based automobile exhaust networking analysis system

The invention relates to the technical field of automobile exhaust pollution, in particular to a sensor-based automobile exhaust networking analysis system, which comprises a data acquisition module, a data processing and fusion module, an analysis and prediction module, an intelligent decision module, a data storage module and a user interaction module, the data processing and fusion module is used for processing the received pollutant component data, the data storage module is used for storing the pollutant component data, the analysis and prediction module is used for analyzing the pollutant component data in real time and predicting the tail gas emission trend, and the intelligent decision module is used for generating optimized vehicle operation parameters and providing maintenance suggestions. And the user interaction module provides a visual interaction interface and displays the tail gas emission data, the analysis result and the decision suggestion of the vehicle in real time. According to the automobile exhaust monitoring system, the technical problems existing in an existing automobile exhaust monitoring system are effectively solved, and the accuracy and reliability of data are remarkably improved.
Owner:ZHEJIANG NORMAL UNIV

Device and method for low-speed wind tunnel gust or flutter half-mode test

The invention discloses a device and a method for a low-speed wind tunnel gust or flutter half-mode test, belongs to the field of wind tunnel tests, and aims to solve the problems that an existing gust or flutter half-mode test device cannot realize complete release of heaving and pitching degrees of freedom and is difficult to share the two tests. The device comprises an overall frame, the overall frame is installed in a wind tunnel test section, two sliding rails are vertically arranged on the front end face of the overall frame, two sliding block sets are arranged on the left side and the right side of the rear end face of a tackle, the two sliding block sets are in sliding fit with the two sliding rails in a one-to-one correspondence mode, two spring seats are arranged at the top end of the overall frame, and horizontal shafts are arranged on the spring seats. The inner ring ends of the two clockwork springs are connected with the horizontal shafts of the two spring seats in a one-to-one correspondence manner, the outer ring ends of the two clockwork springs respectively droop to be connected with the pulley, and the model mounting seat is cylindrical and is in running fit with the pulley; the device can be used for a gust load retarding test and a body degree of freedom flutter test, and can be shared by the two tests.
Owner:CHINA AVIATION IND CORP HARBIN AERODYNAMICS RESEARCH INSTITUTE

System and method for monitoring insulation state of extra-high voltage direct current bushing

The invention discloses an extra-high voltage DC bushing insulation state monitoring system and method, and belongs to the technical field of bushing monitoring, and the system comprises a monitoring platform, a bushing partial discharge monitoring device, and a bushing dielectric loss, capacitance and leakage current monitoring device. The bushing partial discharge monitoring device comprises a high-frequency partial discharge acquisition module and a high-frequency pulse current sensor, and the high-frequency pulse current sensor, the high-frequency partial discharge acquisition module and the monitoring platform are in signal connection in sequence; the bushing dielectric loss, capacitance and leakage current monitoring device comprises a dielectric loss acquisition module, a leakage current sensor and a signal sampling unit, the leakage current sensor and the signal sampling unit are both in signal connection with the dielectric loss acquisition module, and the dielectric loss acquisition module is in signal connection with the monitoring platform. According to the invention, through integration of the monitoring platform and the monitoring equipment, comprehensive real-time monitoring of the running state of the sleeve is realized.
Owner:STATE GRID HENAN ELECTRIC POWER ELECTRIC POWER SCI RES INST +2

Method for optimizing collaborative layout of sensor and mobile equipment in smart agriculture

The embodiment of the invention provides an optimization method for collaborative layout of sensors and mobile equipment in smart agriculture, and the method comprises the steps: determining key monitoring points for sensor deployment according to farmland region division and crop distribution conditions; based on a path planning algorithm of the mobile equipment, calculating an optimal data acquisition route, and ensuring that the mobile equipment can efficiently access all sensor nodes; historical data and environmental changes are analyzed by using a machine learning algorithm, and working parameters of the sensor and the inspection frequency of the mobile device are dynamically adjusted, so that the accuracy and timeliness of data acquisition are improved. Through the scheme of the embodiment of the invention, the effective collaborative layout of the sensor and the mobile equipment can be realized in the smart agriculture so as to improve the data acquisition efficiency and precision.
Owner:HEILONGJIANG UNIV +2

Real-time monitoring system and method for coal mine electromechanical operation faults

The invention discloses a coal mine electromechanical operation fault real-time monitoring system and method, and the system comprises a multi-sensor module which obtains the multi-source information of the operation state of coal mine electromechanical equipment based on a multi-sensor fusion technology, and a signal processing module carries out the noise filtering processing of the multi-source information, so as to reduce the signal interference in a complex environment. The fault diagnosis module establishes a fault diagnosis model based on the filtered data to realize real-time monitoring of faults; the coal mine electromechanical operation fault real-time monitoring system and method solve the problems that in the prior art, the anti-interference capacity is limited, the reliability of data collection is insufficient, the fault monitoring effect is directly affected, how to reduce the interference degree through reasonable sensor layout and network transmission mechanism design, and in the algorithm level, the real-time monitoring of the coal mine electromechanical operation fault is achieved. The problems that an existing analysis method is limited in noise suppression capacity and the actual application effect of a monitoring system is limited are solved.
Owner:PINGDINGSHAN RUIPING COAL & ELECTRICITY CO LTD PISHAN COAL MINE

Property service response method and system based on voice robot

The invention discloses a property service response method and system based on a voice robot, and relates to the technical field of voice recognition, and the method comprises the steps: collecting a voice signal, generating a spectrogram feature, generating keyword category prediction based on the spectrogram feature, and carrying out the signal screening according to a prediction result; and positioning a signal sound source direction based on a screening result, extracting a target voice signal, performing voice enhancement on the target voice signal, converting the voice into a text, performing semantic analysis on the text, and generating a user instruction. Through voice signal acquisition and adaptive noise suppression of the multi-channel microphone array, the signal acquisition precision is improved, based on an improved spectrogram feature generation mechanism, the feature expression ability of voice signals is improved, and the service response speed and accuracy are remarkably improved.
Owner:ANLIZHI INTELLIGENT ROBOT TECH (BEIJING) CO LTD

Internal error step-by-step calibration method and device for oval scanning type airborne depth sounding laser radar

The invention provides a step-by-step calibration method and a step-by-step calibration device for internal errors of an oval scanning type airborne sounding laser radar. By gradually calibrating the laser ranging error, the collimation axis error and the driving motor rotation angle error, the complexity of error calibration is reduced, the influence of multi-factor interference on the overall calibration precision is avoided, and the internal error value of the laser radar can be effectively calibrated. The error value can be used for evaluating the instrument quality in the instrument processing and assembling stages, and correcting the system error in the subsequent calculation, thereby preventing the precision reduction caused by the error of the measurement data of the laser radar, and improving the obtaining precision of the laser three-dimensional point cloud data.
Owner:GUILIN UNIVERSITY OF TECHNOLOGY

Hyperspectral oblique photography system and method based on unmanned aerial vehicle and ground agricultural machinery

The invention discloses a hyperspectral oblique photography method based on an unmanned aerial vehicle and a ground agricultural machine, and the method employs the unmanned aerial vehicle to obtain the air data of a farmland, employs the agricultural machine to continuously obtain the ground data in real time, obtains the data in the operation process of the agricultural machine, and does not need to invest extra time and manpower. The advantages of an air platform and a ground platform are fused in an air-ground cooperation mode, high-precision, high-spectral-resolution and multi-angle comprehensive acquisition of remote sensing data of a farm is achieved, the spatial and spectral resolution of the data is improved, the requirement of precision agriculture for the data is met, air oblique photography is used, and the precision agriculture is improved. And multi-view information of the farmland is obtained to establish a high-precision farmland three-dimensional model. The method can solve the problems of insufficient data acquisition precision and timeliness in the prior art, remarkably improves the remote sensing data acquisition precision in agricultural production, and is widely applied to the fields of crop health monitoring, pest control, soil management and the like.
Owner:HENAN AGRICULTURAL UNIVERSITY

Track-based hollowing collection method and detection surface hollowing collection method

The invention provides a track-based hollowing collection method and a detection surface hollowing collection method, and the method comprises the steps: carrying out the push-broom of a detection surface along a current track, and collecting the point cloud data and echo data corresponding to each sampling point in the current track; based on the coordinate information of the point cloud data, obtaining the position information of each sampling point on the detection surface; obtaining the hollowing degree corresponding to each sampling point by extracting sound wave characteristics in the echo data; based on the hollowing degree corresponding to each sampling point on the current track, acquiring a hollowing acquisition result corresponding to the current track; according to the invention, the collection efficiency is effectively improved, and the collection precision and accuracy are greatly improved.
Owner:NINGBO UNIV +2

Portable electrochemical workstation and detection method thereof

The invention relates to the technical field of electrochemical work stations, and discloses a portable electrochemical work station and a detection method thereof, the portable electrochemical work station comprises a microprocessor and a Bluetooth module, the microprocessor comprises a main processor and a Bluetooth module, the main processor is used for executing control and calculation tasks; the Bluetooth module supports a Bluetooth protocol, is used for carrying out wireless communication with an upper computer and carrying out data transmission and equipment pairing, and is connected with the main processor through a serial port; the analog front-end module is used for processing and amplifying a voltage signal from the digital-to-analog converter and an analog signal of a sensor electrode of the three-electrode system; the digital-to-analog converter is used for converting the digital signal transmitted by the main processor into an analog signal; the analog-to-digital converter is used for converting the analog signal transmitted by the analog front-end module into a digital signal. The system is portable, low in power consumption and high in environment adaptability so as to adapt to application requirements of various mobile operations and limited spaces, integrates multiple detection modes, supports multi-channel detection, and expands equipment application scenes.
Owner:BEIJING INST OF TECH

Voltage transformer online thermal stress monitoring system based on LSTM neural network

The invention relates to the technical field of power system equipment monitoring, in particular to a voltage transformer online thermal stress monitoring system based on an LSTM neural network, which comprises a control unit, a state display unit, a thermal stress monitoring unit, a voice alarm unit and a data storage unit, wherein the control unit is respectively connected with the state display unit, the thermal stress monitoring unit, the voice alarm unit and the data storage unit and is used for receiving and processing data information transmitted by the units and sending command data information to the units to control the units to complete corresponding functions. The units of the constructed monitoring module perform real-time monitoring cooperatively, the overall operation is simple and convenient, user experience is emphasized, the working efficiency is improved, the LSTM network is good at processing sequence data and capturing a thermal stress related time dependency relationship, dependence on a traditional method is reduced, the prediction efficiency is improved, and the parallel computing capability of the LSTM network can quickly process data, calculate thermal stress and perform early warning. And equipment faults caused by overlarge thermal stress are prevented.
Owner:SUIXI COUNTY POWER SUPPLY CO OF STATE GRID ANHUI ELECTRIC POWER CO LTD +1

Real-time measuring circuit and measuring method for milliohm-level resistor

The invention discloses a milliohm-level resistance real-time measuring circuit which comprises a power supply circuit, a voltage division circuit, an operational amplifier circuit, a lifting circuit, an ADC acquisition module, an MCU and an LED display screen which are sequentially connected in series, the MCU is connected with the power supply circuit through a relay switch circuit, and the power supply circuit is connected with the voltage division circuit through a current mutual inductance circuit. The invention also discloses a milliohm-level resistor real-time measurement method, which comprises the following steps of: utilizing the measurement circuit, performing wiring measurement on the measured resistor by adopting a four-wire method, controlling the relay by the MCU to circularly switch on power supply in real time, performing voltage division, operational amplification and lifting processing on a signal, then performing segmented acquisition, performing effective acquisition value judgment and A / D conversion by the MCU, and finally displaying a calculated resistance value on the LED display screen. The invention belongs to the technical field of circuit measurement, adopts segmented acquisition, is high in acquisition precision and high in stability, and can continuously and circularly measure in real time for a long time as a relay is switched on for power supply at regular time.
Owner:XIAN AIRBORNE ELECTROMAGNETIC TECH

Method for optimizing three-dimensional sensor in operation mode

The invention discloses a method for optimizing a three-dimensional sensor in an operation mode, which combines an effective independence method with redundancy, sorts candidate sensors according to contribution of candidate sensor positions to linear independence of a target mode, and removes an unimportant position through iteration each time. The final sensor configuration tends to maximize the determinant of the Fisher information matrix, so that the corresponding target modal shape is linearly independent as far as possible, and meanwhile, the signal strength of the target modal response in the test data is maximized, so that the modals are distinguished as far as possible, the signal-to-noise ratio is improved, and the influence of noise on the test is reduced. According to the invention, the number of required sensors can be minimized while the accuracy of data collection is ensured, so that the potential influence of the sensors on the structure function is reduced, and the test cost is reduced.
Owner:NANJING UNIV OF AERONAUTICS & ASTRONAUTICS

Construction project quality whole-process monitoring method and system based on Internet of Things

The invention discloses a construction project quality whole-process monitoring method and system based on the Internet of Things, and relates to the technical field of intelligent supervision. Comprising the following steps: S1, determining a quality monitoring target and requirement, and formulating a quality monitoring scheme based on the Internet of Things; s2, implementing the formulated quality monitoring scheme; s3, performing quality analysis processing on the construction data based on a machine learning algorithm, and performing corresponding quality early warning; and S4, carrying out whole-process collaborative management by utilizing the whole-process collaborative management platform. A large number of sensors are deployed in combination with the Internet of Things technology, engineering quality related data can be obtained in real time in the whole construction process, the data collection speed and precision are high, data processing and analysis are conducted in combination with a machine learning algorithm, and the quality problem in engineering can be rapidly and accurately analyzed; corresponding quality early warning is carried out; and a whole-process collaborative management platform is further established to realize information sharing and collaborative decision among all parties, so that the quality problem processing efficiency is improved.
Owner:GUIYANG JINYANG CONSTR DATA SERVICE CO LTD

Method, device and system for dynamically collecting railway data by using vehicle-mounted equipment

The invention discloses a method, a device and a system for dynamically acquiring railway data by using vehicle-mounted equipment, and relates to the technical field of railway data acquisition. The method comprises the steps that a train monitoring device outputs current running data of a train in real time, and a Beidou positioning module outputs current positioning data of the train in real time; the central processing unit receives data output by the train monitoring device and the Beidou positioning module in real time and uploads the data to the public network server; the public network server packs the received effective acquisition data in real time and sends the effective acquisition data to an intranet map server in a railway intranet; the intranet map server extracts line numbers, line rows, mileage data and longitude and latitude data in the effectively collected data, and integrates the line numbers, the line rows, the mileage data and the longitude and latitude data to establish map data; and automatically generating and updating the railway map based on the established map data. Compared with an existing coordinate acquisition mode, the automatic acquisition method ensures data accuracy, avoids a heavy manual acquisition mode, and improves acquisition efficiency and precision.
Owner:BEIJING SANLING JIYE TECH DEV CO LTD

Marine disaster risk prevention and control early warning system

The invention discloses a marine disaster risk prevention and control early warning system, which comprises a control center, a data acquisition unit, a data transmission unit, a data processing and analysis unit, an early warning model construction unit and an early warning release unit, a signal channel of the control center communicates with signal channels of the data acquisition unit, the data processing and analysis unit, the early warning model construction unit and the early warning issuing unit through the data transmission unit. By integrating the multi-source sensor network and the advanced remote sensing technology, all-directional, multi-dimensional and high-precision real-time monitoring of the marine environment can be realized, the monitoring coverage range is greatly expanded, the data acquisition efficiency and precision are improved, and the real-time monitoring of the marine environment can be realized by constructing a set of efficient early warning model. The models can deeply mine potential laws and relevance in data, the occurrence probability and the possible influence range of marine disasters are accurately predicted, continuous learning and optimization are achieved, and the accuracy and timeliness of the early warning model are remarkably improved.
Owner:SECOND INST OF OCEANOGRAPHY MNR

Frequency signal acquisition system and method

The invention provides a frequency signal acquisition system, a method using the frequency signal acquisition system, equipment and a medium, and the system comprises a signal acquisition module which is configured to receive a frequency signal and a preset time signal at the input end of the signal acquisition module, a trigger signal is generated when the received frequency signal meets a predetermined condition within a predetermined time; the control unit is configured to be in communication connection with the signal acquisition module so as to provide the preset time signal for the signal acquisition module and receive a trigger signal from the signal acquisition module, so that the frequency of the received frequency signal is determined through the trigger signal; wherein the predetermined condition comprises rising edge interruption of the received frequency signal and falling edge interruption of the received frequency signal.
Owner:ZHEJIANG GUOLI XINAN TECH CO LTD

Ecological economic value assessment method based on data analysis

The invention discloses an ecological economic value evaluation method based on data analysis, and relates to the technical field of value evaluation.The method comprises the steps that during operation, multi-dimensional data related to an ecological system is collected, ecological resource utilization efficiency data, environmental protection contribution situation and environmental loss data are obtained, the collected multi-dimensional parameters are preprocessed, and the value of the ecological economic value is evaluated; a resource utilization benefit coefficient Rutil, an environment protection contribution coefficient Penv, an environment loss coefficient Eloss and an ecological economic value evaluation index Stjj are calculated, the ecological economic value evaluation index Stjj is compared with a preset first threshold V and a preset second threshold B, the future development direction and potential risks are evaluated, an ecological economic value evaluation report is automatically generated, and the ecological economic value evaluation efficiency is improved. The content of the report comprises detailed analysis of each coefficient, a trend analysis result, an ecological economic value evaluation index Stjj and a comparison result with a preset threshold value, the report adopts a form of combining charts, data and characters, and the evaluation result is visually displayed.
Owner:NANKAI UNIV

Camera capable of being automatically turned on and off

The utility model discloses a camera capable of automatically switching on and off, which belongs to the technical field of communication and comprises a camera module, a controller module, an infrared sensor module, a communication module, a storage module, a clock module, an interface module and a switching power supply module. The camera module, the infrared sensor module, the communication module, the storage module, the clock module, the interface module and the switching power supply module are respectively connected with the controller module; the camera module comprises an AR0230CS sensor and an SLVS interface, the storage module comprises a 256Mb Flash module and a 4Gb DDR3 module, the AR0230CS sensor is connected with the main control module through the SLVS interface, the Flash module and the DDR3 module are respectively connected with the main control module, the leaving and leaving states of people are judged through images and infrared rays, automatic on-off of a power supply of the intelligent socket is achieved, and then work of electric appliances is controlled.
Owner:GUANGZHOU YIWANG COMPUTER CO LTD

Brain-computer interface smart zoom glasses and visual adaptive adjustment system

This invention discloses a brain-computer interface (BCI) smart zoom glasses and a visual adaptive adjustment system, relating to the field of smart glasses technology. It includes an EEG signal acquisition module that attaches to the user's head to collect signals, extracts feature vectors after noise reduction, and transmits them to a core control module; a visual environment perception module that collects target and environmental data, generates structured data packets, and transmits them synchronously; a core control module that integrates multi-source data, identifies visual intent, and decides on adjustment parameters; a smart zoom execution module that adjusts the lens focal length and provides closed-loop feedback to calibrate accuracy; a visual adaptive adjustment module that adjusts lens parameters based on the environment and fatigue state; a human-computer interaction module that supports manual operation, status display, and vibration feedback; and a data storage and update module that stores data and iteratively optimizes the model. This invention achieves accurate visual intent recognition through brain-computer interaction; personalized modeling adapts to different user needs, meeting the product development and application requirements of the wearable smart device manufacturing field.
Owner:GUANGDONG LIANGJINGJING TECH CO LTD

Strength monitoring equipment based on bridge safety detection

ActiveCN224245800UAchieve large-scale horizontal movementincrease diversityStands/trestlesGear wheelElectric machinery
The utility model provides strength monitoring equipment based on bridge safety detection, which comprises two mounting racks fixed at the bottom of a bridge, a movable table is connected between the two mounting racks in a sliding manner, a first motor is fixedly connected on the movable table, the output end of the first motor is fixedly connected with a first gear, and the output end of the first gear is fixedly connected with a second gear. The bottom of any one of the two mounting frames is fixedly connected with a rack, the first gear is connected with the rack in a meshed mode, and a mounting block is arranged on the movable table in a sliding mode. According to the strength monitoring equipment based on bridge safety detection, through a sliding fit structure of the mounting frame and the movable table and in combination with meshing transmission of a motor driving gear and a rack, transverse large-range movement of the monitoring device along the bottom of a bridge is achieved, the position limitation of traditional fixed equipment is broken through, and the safety of the bridge is improved. Key areas such as a bridge girder and a joint can be continuously scanned, and the comprehensiveness and the reliability of detection data are remarkably improved.
Owner:JIANGSU KEDI CONSTR ENG QUALITY INSPECTION CO LTD