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342 results about "Tilt sensor" patented technology
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A tilt sensor can measure the tilting in often two axes of a reference plane in two axes. In contrast, a full motion would use at least three axes and often additional sensors. One way to measure tilt angle with reference to the earths ground plane, is to use an accelerometer. Typical applications can be found in the industry and in game controllers.
Reservoir bank slope deformation body instability volume prediction method
The invention provides a reservoir bank slope deformation body instability volume prediction method, which comprises the following steps: respectively acquiring earth surface displacement and rock mass internal deformation data through a millimeter wave radar and a tilt angle sensor, and after processing through an adaptive noise decomposition algorithm, identifying a key deformation area and generating a data set. And performing space-time alignment on the data by using the engineering coordinate system and the topological relation to generate a fusion matrix. And reconstructing a potential slip crack surface geometric model in combination with slip crack surface features of historical cases, and calculating instability volume probability distribution by adopting Monte Carlo simulation. And finally, inputting the multi-dimensional data into the space-time prediction model, and outputting an instability volume prediction result with probability distribution. According to the invention, the accuracy and reliability of the prediction result can be improved, and scientific basis and technical support are provided for safety monitoring and disaster early warning of the reservoir bank slope.
Owner:POWER CHINA KUNMING ENG CORP LTD +2
Remote monitoring system for instability of hoisting machinery steel structure
The invention relates to the technical field of mechanical safety monitoring, and discloses a remote monitoring system for instability of a steel structure of hoisting machinery, which comprises the following modules: an inclination monitoring module for collecting inclination angle data of a crane in real time and carrying out signal preprocessing, and a control module for receiving the data and carrying out comparative analysis on the received data and a preset threshold value. And according to an analysis result, a control instruction is sent to the execution module and data is output to the remote transmission module. The execution module, the remote transmission module, the environment compensation module and the data management module are arranged. According to the invention, through multi-module cooperation and algorithm innovation, high-precision monitoring and active prevention and control are realized. A double-axis / three-axis tilt angle sensor is combined with Kalman filtering, the precision reaches + / -0.1 degree, and the reliability is improved through the redundant design of key part equipment. The control module realizes multi-stage alarm through fuzzy PID and a finite-state machine, a Transformer model predicts risks in advance by 10-30 seconds, environment compensation is realized, hybrid networking enhances adaptability, 5G + VR monitoring improves operation and maintenance efficiency, 60% of tipping accidents can be reduced, and multi-scene safety requirements are met.
Owner:CHINA RAILWAY FIRST GROUP CO LTD +2
Input device
ActiveGB2627854BInput/output processes for data processingSoftware engineeringMechanical engineering
A computer input system input device (300) includes a housing (312) defining an internal volume. The housing includes a grip portion (314) and a base (315). A tilt sensor (326) is arranged in the inte
Owner:APPLE INC
Intelligent and safe hoisting monitoring method for large-tonnage I-beam
The invention discloses an intelligent and safe hoisting monitoring method for a large-tonnage I-beam, relates to the field of construction safety, is based on a monitoring system consisting of a sensing layer, a transmission layer, a data layer, a decision layer and an execution layer, and comprises the following steps: deploying the sensing layer, constructing the transmission layer, configuring the data layer, constructing the decision layer and responding to the execution layer. Structural stress is monitored through a high-precision strain gauge and a distributed optical fiber sensor, the posture is monitored through an MEMS tilt angle sensor and a six-axis gyroscope, the state of the lifting appliance is monitored through a tension sensor and a visual recognition sensor, the environment is monitored through an ultrasonic anemograph and a laser radar, and multi-dimensional data collection is conducted through a displacement sensor monitoring device. Full-scene monitoring of the state of the I-shaped beam, the performance of a lifting appliance, the working environment and crane equipment is achieved, potential risks are captured without dead corners, the accuracy and reliability of data under complex working conditions are ensured, the problems that traditional monitoring data are prone to being interfered by the environment and insufficient in precision are solved, and the safety coefficient is increased.
Owner:CHINA COMM SECOND PUBLIC OFFICE EAST CHINA CONSTR CO LTD
Cultivated land crop adaptability evaluation and planting suggestion system
The invention relates to the technical field of agricultural environment intelligent monitoring, and discloses a cultivated land crop adaptability evaluation and planting suggestion system, which comprises a plurality of distributed microenvironment decision-making units, each unit acquires soil humidity and illumination data in real time through an environment sensor, and slope information acquired by a tilt angle sensor is combined to determine the adaptability of cultivated land crops. The local processor calculates entropy values representing crop stress risks based on a dynamic weight adjustment algorithm, and entropy value interaction and collaborative decision-making among units are realized through a low-power-consumption communication network. Therefore, the system can autonomously identify the local hydrological stress risk, forms a cooperative response network based on the physical law between units, and achieves the precise perception and intelligent decision-making of a complex farmland environment.
Owner:HUNAN SHENGDING TECH DEV CO LTD
Photovoltaic flexible support load deformation monitoring system and method
PendingCN121457107AMaterial strength using tensile/compressive forcesUsing optical meansNon linear dynamicDeformation monitoring
The invention belongs to the field of intelligent monitoring, and discloses a photovoltaic flexible support load deformation monitoring system and method, and the system and method achieve the safe and precise management and control of a structure through the deep fusion of multi-source sensing, mechanism modeling and data driving. Structural deformation parameters are synchronously obtained by combining a laser displacement sensor and a double-axis tilt angle sensor, and the limitation that a traditional monitoring means is single in parameter and lack of dimensionality is broken through. After data is gathered in real time through a wireless transmission module, a physical constraint-data learning hybrid framework is adopted for processing, a physical model constructs a deformation calculation equation based on a moment balance and deflection theory, a theoretical lower limit conforming to an engineering mechanics law is provided, and an LSTM neural network captures nonlinear dynamic association such as wind load sudden change through time sequence learning. A prediction result with both theoretical compliance and data adaptability is generated, and the operation reliability and maintenance efficiency of the photovoltaic flexible support in a complex environment are improved while high real-time performance is maintained.
Owner:HENAN CLEAN ENERGY BRANCH OF HUANENG INT POWER CO LTD +1
Large-span steel structure corridor overall lifting and rapid mounting system and technology thereof
PendingCN121042785AWelding/cutting auxillary devicesAuxillary welding devicesLong spanControl theory
The invention discloses a large-span steel structure corridor overall lifting rapid installation system and technology. The installation system comprises an inclination angle monitoring module, a steel truss end displacement detection module, a data monitoring module, a detection early warning module and an early warning removing module. According to the inclination angle monitoring module, a high-precision inclination angle sensor is pasted to the middle position of a truss, the inclination angle theta of the steel truss is monitored in real time through the high-precision inclination angle sensor, the sensor is connected with a PC terminal, and inclination angle data are received in real time. Therefore, the construction progress is accelerated, and the construction cost is reduced; the synchronism of the large-span steel truss in the whole lifting process can be accurately monitored; the working procedures of pausing lifting and measuring every time lifting is conducted by a certain distance in the traditional construction process are omitted, continuous lifting is achieved, and the construction quality and efficiency are improved.
Owner:SHANGHAI BAOYE GRP NANJING BUILDING +1
Automatic control method of intelligent garbage crane
The invention belongs to the technical field of intelligent garbage cranes, and particularly relates to an automatic control method of an intelligent garbage crane, which comprises the following specific steps of: positioning a crane cart moving along an X axis by using a laser sensor, positioning a crane trolley moving along a Y axis by using an absolute value encoder so as to sense the position of a crown block, and then positioning the crane trolley along the Y axis by using an absolute value encoder. The central control system is used for accurately controlling the movement of the cart and the trolley and the grab postures moving along the Z axis according to the position of the trolley; a laser holder sensor is arranged on a cart and is vertically aligned with a garbage bin under a crown block, so that the height of garbage below can be measured by utilizing a vertical laser surface diverged by a laser holder. The intelligent garbage crane is controlled through the control method, the problem that when an existing intelligent garbage crane runs, the overall logicality of the intelligent garbage crane is poor can be solved, then the running smoothness of the intelligent garbage crane can be improved, and therefore the running efficiency of the intelligent garbage crane can be improved.
Owner:HANLANLVDIAN SOLID WASTE TREATMENT (FOSHAN) CO LTD 2ND +1
Dangerous engineering safety management system
PendingCN120450429AMeasurement devicesDesign optimisation/simulationAnalytic modelSafety management systems
The invention discloses a dangerous and large project safety management system, and belongs to the technical field of building construction safety monitoring. According to the system, vibration sensors are arranged on the boundary of a construction area, inclination sensors are installed on the surface of a supporting structure, static force level gauges are arranged corresponding to settlement monitoring points, and soil pressure boxes are buried in the side wall of a foundation pit in a layered mode, so that multi-dimensional data collection is achieved. A finite element analysis model is adopted in an edge calculation unit arranged in the area controller, supporting structure material parameters serve as input, and theoretical values are dynamically calculated in combination with real-time monitoring data. When the deviation between the measured data and the theoretical value exceeds a first threshold value, the historical mean value is automatically fused for iterative calculation, and if the deviation still exceeds a second threshold value after continuous three times of iteration, primary early warning is triggered. The system can evaluate the safety state of the supporting structure in real time, effectively prevents collapse accidents, and is suitable for safety management of dangerous and large projects such as building foundation pits and tunnels.
Owner:CHINA HARBOUR ENGINEERING
Heterogeneous historic building intelligent real-time monitoring and early warning device based on multiple sensors
The invention discloses a multi-sensor-based heterogeneous historic building intelligent real-time monitoring and early warning device, which comprises an acquisition terminal, a transmission unit and a controller, and is characterized in that the acquisition terminal is installed at a corresponding monitoring position of a historic building and comprises an acceleration sensor, an inclination sensor, a displacement sensor, a crack sensor and a multi-path time sequence control module; the acceleration sensor, the inclination sensor, the displacement sensor and the crack sensor form a multi-mode sensor group to measure and monitor an ancient building, and the multi-channel time sequence control module ensures that all electric pulse signals collected by the multi-mode sensor group are synchronous and transmits all the collected electric pulse signals to the controller through the transmission unit. According to the method, the multi-mode sensor group is used for measuring and monitoring the ancient building, the sensing accuracy is improved through the excellent performance of the sensor in the aspects of time sequence data processing and mode recognition, and support can be provided for health monitoring of the ancient building more efficiently and intelligently.
Owner:HENAN JIANBAO BOX TECH DEV CO LTD
Virtual welding teaching training system and method
The invention discloses a virtual welding teaching training system, and belongs to the technical field of virtual teaching, the virtual welding teaching training system comprises a head-mounted display device, a welding plate and a simulation welding gun, a camera of the head-mounted display device is used for capturing an actual operation picture and transmitting the actual operation picture to a computer; the display screen is used for displaying the virtual welding picture processed by the computer; the welding gun comprises a grip and a welding rod, the welding rod is arranged at the front end of the grip and provided with a pressure sensor used for sensing contact pressure between the welding rod and the welding plate, and the grip is provided with an inclination angle sensor used for sensing the inclination angle of the welding rod. According to the head-mounted display device, the actual operation picture is captured through the camera, the virtual molten pool and weld seam images processed by the computer are displayed on the display screen in an overlapped mode, through the fusion display mode, students can visually observe the real-time association between the operation of the students and the welding effect, and the immersion and interactivity of the training process are remarkably improved.
Owner:NANJING JIXING INFORMATION TECHNOLOGY CO LTD
Composite slope monitoring device
The utility model provides a composite side slope monitoring device. The composite side slope monitoring device comprises a monitoring box body and a remote monitoring terminal, the monitoring box body can be buried in soil of a slope in a pick-and-place manner, and a sensor, a signal processing unit and a power supply unit are arranged in the monitoring box body; the sensor comprises a water content sensor for monitoring the water pressure change in soil, a soil pressure sensor for monitoring the pressure change of the soil, and a displacement and inclination sensor for monitoring and recording the displacement and inclination angle of the slope structure; the signal processing unit converts analog signals of the sensors into digital signals and transmits the digital signals outwards. The power supply unit is electrically connected with the sensors and the signal processing unit; the remote monitoring terminal is in signal connection with the remote transmitter and receives monitoring signals of the remote transmitter. The provided composite slope monitoring device can solve the problems that in a traditional soil slope monitoring scheme, arrangement of sensors is complex, and data collection is difficult, and the accuracy and real-time performance of geological disaster early warning are effectively improved.
Owner:HEBEI UNIV OF ENG
System for determination of line and level for trenchless construction
A line and level determination system for a trenchless construction apparatus has a block assembly which is attached by welding to a lead casing to be installed with the trenchless construction apparatus. The block assembly has a water inlet, a water outlet, a tilt sensor and a light emitting device disposed within the water outlet. A water hose has a first end attached to the water inlet and a second end attached to a water source. The line and level determination system has a controller connected to the tilt sensor and the light emitting device. The controller selectively energizes the tilt sensor and the light emitting device. Data from the tilt sensor is displayed on a screen of the controller. A surveying instrument, such as a theodolite, may be utilized to determine line from the illumination of the light emitting device into the casing.
Owner:PLG TECH INC
Method for positioning offshore structure based on unmanned aerial vehicle loading monitoring system
The invention discloses a method for positioning the position of an offshore structure based on an unmanned aerial vehicle loading monitoring system, the unmanned aerial vehicle loading monitoring system adopts a rigid platform suspended by an unmanned aerial vehicle cluster, and the rigid platform is provided with a full-automatic tracking total station, a GPS, a double-shaft tilt angle sensor and an ultrasonic distance measuring sensor. After the unmanned aerial vehicle cluster suspends the rigid platform to the inclined sky of the offshore structure, hovering is carried out; the flight height of the unmanned aerial vehicle cluster is adjusted through data of an ultrasonic distance measuring sensor, inclination angle data is measured through a double-shaft inclination angle sensor, and the levelness of the rigid platform is further calibrated; the full-automatic tracking total station is used for measuring the horizontal angle, the vertical angle and the slant distance of the offshore structure and uploading the horizontal angle, the vertical angle and the slant distance to the upper computer, the upper computer calculates the three-dimensional coordinates of the full-automatic tracking total station according to coordinate data of the GPS, and then the three-dimensional coordinates of the center point of the offshore structure are calculated. According to the invention, positioning of the offshore structure can be realized, monitoring dead angles are avoided, and personnel risk is reduced.
Owner:TIANJIN PORT ENG INST LTD OF CCCC FIRST HARBOR ENG +2
Intelligent oil level gauge based on laser ranging and measuring method
The invention provides an intelligent oil level gauge based on laser ranging and a measuring method, and belongs to the technical field of oil level gauges. The intelligent oil level gauge comprises a measuring strip, a laser ranging module, an inclination angle compensation module and an intelligent data processing module; the intelligent data processing module comprises a microprocessor and a wireless communication unit, the microprocessor outputs the corrected liquid level height through a dynamic compensation algorithm based on measurement data of the laser ranging module and measurement data of the inclination angle compensation module, and the corrected liquid level height is transmitted to a user terminal through the wireless communication unit; according to the invention, the height of the engine oil liquid level is determined by accurately measuring the reflection time of the laser, so that the measurement precision is greatly improved, and subjective errors caused by visual observation are avoided. The inclination angle sensor monitors the inclination angle of the engine oil liquid level in real time, measurement errors caused by inclination can be dynamically compensated in combination with data of the laser ranging module, and therefore the more accurate liquid level height is obtained.
Owner:WENZHOU UNIV
Control method of hydraulic balance supporting leg structure of modularized whole vehicle logistics loading and unloading platform
The invention discloses a control method of a hydraulic balance supporting leg structure of a modularized whole vehicle logistics loading and unloading platform. The method comprises the steps that target parameters of the loading and unloading platform are obtained, and the target parameters comprise pressure sensor parameters, accelerometer parameters and tilt angle sensor parameters of all hydraulic supporting leg units of the loading and unloading platform; environment parameters of the loading and unloading platform are obtained, wherein the environment parameters are used for representing parameters of the environment where the loading and unloading platform is located; determining a platform inclination angle of the loading and unloading platform based on the target parameters; based on the environmental parameters and the platform inclination angle of the loading and unloading platform, determining the target expansion amount of each hydraulic supporting leg unit; and adjusting each hydraulic support leg unit based on the target expansion and contraction amount of each hydraulic support leg unit. The technical problems that in the prior art, the adjusting process of a loading and unloading platform is complex, and the adjusting precision is low are solved.
Owner:FAW LOGISTICS CO LTD
Device calibration via a projective transform matrix
A method is disclosed for improving accuracy of visual field testing in head-mounted displays. The method includes retrieving a visual field testing pattern for a head-mounted display, the visual field testing pattern including stimuli displayed at respective locations in a visual field of the head-mounted display. The visual field testing pattern is generated on the head-mounted display. Data is retrieved from a tilt sensor, located at the head-mounted display, for detecting degrees of head tilt of a user wearing the head-mounted display and the degree of head tilt is determined. A comparison is made between the degree of head tilt of the user to a first threshold degree. In response to the degree of head tilt of the user meeting or exceeding the first threshold degree, a recommendation to the user is generated for display on the head-mounted display.
Owner:UNIV OF MIAMI
Electric tower inclination early warning method based on multiple sensors
The invention discloses an electric tower inclination early warning method based on multiple sensors, which is implemented by an electric tower inclination early warning system based on multiple sensors, wherein the electric tower inclination early warning system is composed of an intelligent thundersight system, a power supply system, a clinometer and a weather instrument which are matched with one another. The early warning method comprises the following steps of: 1, acquiring data of an inclination sensor: measuring inclination angles of the electric tower in x-axis and y-axis directions by using the inclination sensor, calculating the inclination displacement of the electric tower by acquiring data of the inclination angles of the electric tower in real time, and calculating the inclination displacement of the electric tower by adopting a plurality of sensor monitoring modes through data analysis and fusion; according to the invention, a health state evaluation model of the electric tower can be established, real-time monitoring is carried out by means of an advanced sensor technology, early warning is given in time and emergency measures are taken in advance when the electric tower is inclined or weather conditions are bad, so that the risk of accidents is reduced, and the monitoring capability of the state of the electric tower can be effectively improved.
Owner:JIANGSU WEIYU AEROSPACE TECHNOLOGY CO LTD
Driver monitoring camera
ActiveUS12623667B2Character and pattern recognitionDriver input parametersComputer hardwareDriver/operator
A driver monitoring camera comprises an optical sensor configured to take an image of a driver of a vehicle, an inclination sensor configured to determine an inclination of the driver monitoring camera with respect to a vehicle coordinate system and a processor configured to determine a pose of the driver in a driver monitoring camera coordinate system from the image and configured to transform the pose of the driver in the driver monitoring camera coordinate system to a pose of the driver in the vehicle coordinate system using the determined inclination.
Owner:CONTINENTAL AUTOMOTIVE TECHNOLOGIES GMBH
Photovoltaic inclination angle dynamic cooperative adjustment system and method of mobile wind-solar-storage all-in-one machine
The invention discloses a system and a method for dynamically and cooperatively adjusting a photovoltaic inclination angle of a mobile wind-solar-storage all-in-one machine. Comprising a multi-source data acquisition module which comprises a GPS positioning unit, a distributed light intensity sensor array, a wind speed and direction sensor and a tilt angle sensor; and the dynamic calculation module is used for calculating the solar altitude according to the positioning information of the GPS positioning unit and the time information, and establishing a quadratic relation model of the irradiance and the incident angle through actual measurement data fitting, so that the irradiance is calculated according to the solar altitude. Environmental parameters are acquired in real time through the multi-source data acquisition module, the optimal irradiance dip angle is determined in combination with the dynamic calculation module, the wind-solar collaborative optimization module dynamically balances the influence of the dip angle of the photovoltaic panel on the air duct of the straight-axis fan, the total power generation amount is maximized, and through real-time monitoring of the environmental parameters, the power generation efficiency is improved. Real-time adjustment is carried out according to weather condition changes, and power generation efficiency is improved.
Owner:SHENZHEN HUAFENG INT NEW ENERGY TECH CO LTD
Ocean flow field measurement method and device
ActiveCN120926957AMeasuring open water movementIndication/recording movementLyapunov exponentFrequency shift
The invention relates to the technical field of flow field measurement, in particular to an ocean flow field measurement method and device, and provides the following scheme: the method comprises the following steps: collecting ocean environment parameters through a vertical sensor, determining an overlook angle of an inclination sensor based on an optimization algorithm, and generating a virtual Doppler measurement array through micro-amplitude scanning; inputting to a chaotic oscillator network to identify a Lyapunov exponent maximum direction, and determining a horizontal included angle of a second inclination sensor; furthermore, a frequency shift signal is collected, and the flow velocity and the flow direction are calculated by combining adjusting parameters, so that high-precision and high-adaptability flow field measurement is realized; the method has a dynamic response capability, and is suitable for direction structure identification and real-time flow direction calculation under complex sea conditions.
Owner:NANJING HYDRAULIC RES INST +2
Deformation monitoring system for vertical supporting body of foundation pit in hydraulic reclamation area
The invention discloses a deformation monitoring system for a vertical supporting body of a foundation pit in a hydraulic reclamation area, which relates to the technical field of deformation monitoring and comprises a multi-source signal acquisition module, a dynamic environment acquisition module, a fusion identification module, a dynamic analysis module and a dynamic early warning module. Millisecond-level deformation signal capture is achieved, five key parameters including axial strain, lateral displacement, soil pressure, pore water pressure and water level are synchronously collected, the blind area problem of single-index monitoring is solved, the safety coefficient K is corrected by calculating a comprehensive deformation value Q and then introducing a pore water pressure change rate U3 and a water level change rate W3, the data fusion efficiency is improved, and the data fusion precision is improved. The problem of data islands is solved, multi-stage response is triggered according to the K value, regulation and control equipment and personnel evacuation are linked, the early warning response efficiency is improved, and the engineering defense value of the deformation monitoring system under the complex working condition of the hydraulic reclamation area is improved.
Owner:ZHEJIANG JIADE CONSTRUCTION CO LTD
Urban and rural pavement maintenance monitoring system based on intelligent well lid data linkage
The invention discloses an urban and rural pavement maintenance monitoring system based on intelligent well lid data linkage, and the system comprises a data collection module which detects the acceleration data, angular motion data and inclination angle change data of a well lid in real time through a three-axis acceleration sensor, a gyroscope and an inclination angle sensor which are disposed on the well lid; the edge calculation module is used for calculating a vibration value of the well lid according to the acceleration data, the angular motion data and the inclination angle change data of the well lid and correcting the vibration value; the cloud data center obtains a risk index of a road surface where the well lid is located through a pre-constructed association model according to the corrected vibration value and the position of the well lid corresponding to the vibration value; and the maintenance decision terminal module performs maintenance decision on the road surface where the well lid is located according to the risk index of the road surface where the well lid is located. According to the invention, the well lid on the road surface is taken as the basis of data acquisition, and the maintenance condition of urban and rural road surfaces is detected in real time by acquiring the data on the well lid, so that the maintenance condition can be accurately obtained in real time.
Owner:XIAN CHINASTAR M&C LTD
Intelligent bag breaking mechanism capable of automatically identifying size of garbage bag
Owner:SHENGHUI BRAHMA (XIAN) TECHNOLOGY CO LTD
A device for testing the actuation performance of a linkage mechanism operating handle under simulated load.
This invention discloses a testing device for the operating performance of a lever mechanism simulating load, belonging to the field of high-end equipment performance testing. The core innovation of the device lies in the sequential connection of the lever, crank, connecting rod, slider, and frame assembly to form a crank-connecting rod-slider core transmission and load simulation mechanism. This mechanism integrates adjustable load simulation and integrated synchronous measurement functions. By configuring counterweights, replacing elastic elements, and adjusting connection angles and lever arms, it can accurately simulate nonlinear, multi-dimensional coupled actual operating loads. Simultaneously, a sensor network composed of force sensors, tilt sensors, and acceleration sensors respectively set at key nodes such as the lever and crank synchronously collects multi-dimensional force / torque, displacement, and acceleration parameters throughout the entire operating process. This invention solves the problems of load distortion, single measurement, and asynchronous data in traditional testing, achieving accurate and universal testing of the operating performance of lever mechanisms.
Owner:JILIN UNIVERSITY
Slurry tanker with double emptying system and tilt sensor
Owner:SAMSON GRP AS
A tilt sensor drift elimination method based on bias tracking algorithm
ActiveCN122149534AMeasurement devicesAntenna adaptation in movable bodiesIn vehicleComputational physics
The present application belongs to the technical field of vehicle-mounted communication antenna servo control, and particularly relates to a tilt angle sensor drift elimination method based on a bias tracking algorithm, comprising the following steps: synchronously collecting original tilt angle readings and chip temperature readings of the tilt angle sensor at a fixed collection period; calculating a short-time standard deviation of the original tilt angle readings in a sliding window, determining as stationary when the short-time standard deviation is lower than a stationary threshold, determining as disturbance when the short-time standard deviation is not lower than the stationary threshold, obtaining a stationary state flag, and taking the square of the short-time standard deviation as an observation noise variance; calculating a temperature rise rate according to the chip temperature readings, and outputting a high value as a bias process variance when the stationary state flag is stationary and the temperature rise rate is higher than a thermal equilibrium threshold. The present application solves the problem of transient bias drift of the tilt angle sensor caused by chip temperature rise, so that the output error of the corrected tilt angle value continuously meets the leveling accuracy requirement in the task period.
Owner:SHAANXI TURN ELECTRONICS TECH
Flexible photovoltaic tracking support electrical linkage consistency control method and system
PendingCN120803072AControl using feedbackPhotovoltaic energy generationControl engineeringConsistency control
The invention discloses a flexible photovoltaic tracking support electrical linkage consistency control method and system. According to the method, the target angle, the real-time angle and the inclination angle data of a support are collected, a one-master multi-slave distributed control architecture is combined, and a transverse verification mechanism, a double-link cross correction mechanism and a longitudinal verification mechanism are utilized, so that synchronous and consistent operation between driving units is achieved; and hierarchical fault protection and angle self-calibration are executed when communication is interrupted, overloaded or triggered by hard limit. The system comprises a master controller, a slave controller, a motor encoder, a tilt angle sensor, a communication module, a protection module and an information interaction unit, and can realize local visualization and remote monitoring. According to the scheme, flexible support distortion and photovoltaic module damage caused by inconsistent driving can be effectively avoided, and the safety, reliability and operation and maintenance efficiency of the system are improved.
Owner:SHANDONG ZHAORI PV TECH CO LTD
Subway operation and maintenance track geometric dimension measurement and acquisition real-time alarm system
The invention discloses a subway operation and maintenance track geometric dimension measurement and acquisition real-time alarm system, which comprises a transverse frame, a first connecting sleeve is mounted on the left side of the outer part of the transverse frame, a track gauge and superelevation sensor is mounted at the center of the top of the transverse frame, and a support frame is mounted at the center of the front side of the transverse frame. A cart handle is movably connected into the supporting frame through a rotating shaft, a second connecting sleeve is installed on the right side of the exterior of the transverse frame, and placing plates are connected to the bottoms of the front side and the rear side of the second connecting sleeve. The moving rollers are transferred to the top of the subway track, and the cart handle is pushed to enable the transverse rack to move forwards. In the process that the moving rollers roll forwards at the top of the subway track, the mileage coding sensor completes measurement of the walking mileage of the moving rollers; furthermore, in the process of moving the rollers forwards, the track gauge, the superelevation sensor and the inclination sensor also detect the subway track data in real time, and all types of detection data are transmitted to the single-chip microcomputer.
Owner:CHINA RAILWAY FIRST GROUP CO LTD +3
Method for attenuating interference in the measurement of a tilt angle of a vehicle
PendingUS20260054795A1Wheel based transmissionInternal-combustion engine testingMechanical engineeringRevolutions per minute
A method for attenuating interference in the measurement of an angle of sideways tilt of a motorized two-wheeled vehicle including an electronic control unit configured to compute an angle of sideways tilt of the vehicle from the measurements of a tilt sensor. The method includes: reception of the value of the speed of the vehicle measured by the speed-measuring module; reception of the number of revolutions per minute of the engine; computation of the ratio between the received speed value and the received number of revolutions per minute; comparison of the ratio between the received speed value and the number of revolutions per minute with an attenuation interval; if the ratio is outside the attenuation interval, computation of the tilt angle without attenuation; if the ratio is within the attenuation interval, computation of the tilt angle with attenuation.
Owner:SCHAEFFLER TECHNOLOGIES AG & CO KG