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39results about "Automatic recalibration" patented technology
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Equipment state monitoring method and system based on automatic working condition calibration and multi-dimensional signal analysis
ActiveCN120668219AMeasurement apparatus componentsAutomatic recalibrationIndustrial equipmentTesting Methods
The invention relates to the technical field of industrial equipment state monitoring, in particular to an equipment state monitoring method and system based on automatic working condition calibration and multi-dimensional signal analysis. The full-link automatic closed-loop monitoring of the equipment operation state from calibration to diagnosis to abnormal response is realized, the real-time performance, accuracy and intelligent level of the equipment state monitoring process are remarkably improved, the problems of inaccurate working condition identification, single feature analysis dimension and insensitive abnormal state identification in the prior art are solved, and the method is suitable for popularization and application. The operation reliability of the equipment is practically improved, and the fault risk and the maintenance cost are reduced.
Owner:HECHEN ZIYI (JIAXING) TECH CO LTD
Sensor intelligent calibration system and method
ActiveCN120970709AAutomatic recalibrationThermometer testing/calibrationCommunication interfaceData management
The invention relates to the technical field of sensor calibration, and discloses an intelligent calibration system and method for a sensor, and the system comprises a hardware integrated host, a main control module, a calibration data storage module, a communication interface module, a sensor type recognition module and PC end detection software. The method is applied to the system. According to the invention, through the multi-channel design of the hardware integrated host, convenient access and real-time calibration of multiple types of sensors are realized, and the time consumption of equipment switching is reduced; a segmented compensation model is matched through a sensor type identification module based on impedance characteristics and a voltage range, so that the problem of wide-temperature-range nonlinear compensation is solved, and the calibration precision of sensors such as platinum resistors and thermocouples is improved; the standard source data is integrated through the calibration data storage module and PC end detection software to generate a calibration report, and full-life-cycle data management and quality tracing are realized, so that the adaptability to various sensors is improved, and the calibration efficiency, the data consistency and the expandability are improved.
Owner:HU NANJING QI BIOTECHNOLOGY CO LTD
System and method for recording and recovering power-down position of virtual multi-turn absolute value encoder
PendingCN121577073AAutomatic recalibrationApparatus with stored calibration coefficientsControl theoryEncoder
The invention relates to the technical field of encoders, and discloses a system and a method for recording and recovering a power failure position of a virtual multi-turn absolute value encoder. The system comprises: a virtual multi-turn absolute value encoder; the nonvolatile storage module is used for storing a multi-circle real-time record and a multi-circle actual numerical value of the recovery algorithm module at each power-off moment; the multi-turn real-time recording and recovery algorithm module comprises an initialization compensation unit and a real-time calculation recording unit, and the initialization compensation unit is used for reading the multi-turn actual numerical value of the multi-turn real-time recording and recovery algorithm module at the last power-off moment from the nonvolatile storage module in the power-on initialization stage and calculating the real-time calculation recording unit according to the multi-turn actual numerical value of the multi-turn real-time recording and recovery algorithm module. The real-time calculating and recording unit is used for calculating a multi-circle actual value at the current moment and a multi-circle position actual value at the current moment according to the multi-circle compensation value; and feeding back the actual value of the multi-circle position at the current moment to the external equipment and recording the actual value of the multi-circle position at the current moment into the nonvolatile storage module.
Owner:AEROSPACE SCI & ENG INTELLIGENT ROBOT CO LTD
Environmental sensor for transport refrigeration
ActiveUS12442671B2Air-treating devicesVehicle heating/cooling devicesElectronic communicationCommunication control
A mobile environmental sensor system includes a first mobile environmental sensor, a controller, and a network transmitter disposed on a transport unit. The controller is in electronic communication with the first mobile environmental sensor and the network transmitter. The controller includes a processor and a memory. The processor is configured to trigger a measurement from the first mobile environmental sensor. A sensed value is received from the first mobile environmental sensor. The processor compares the sensed value as received from the first mobile environmental sensor to a reference sensed value received by the controller via the network transmitter. The processor calibrates the first mobile environmental sensor based on the comparison of the sensed value as received and the reference sensed value as received. The calibration includes a normalization between the sensed value as received and the reference sensed value as received. The normalization includes a time dependent component.
Owner:THERMO KING CORP
Connected monitoring device
PendingUS20260085952A1Sub-station arrangementsMeasurement apparatus componentsModem deviceDisplay device
Aspects are provided for a connected monitoring device for monitoring and reporting measurements. The monitoring device includes a plurality of sockets, each socket configured to receive a smart probe including a memory storing calibration information for the smart probe. The monitoring device includes a touch screen display configured to display a current measurement based on a received input signal from the smart probe and the calibration information. The monitoring device includes a wireless modem configured to periodically transmit one or more measurements to a remote server via a wireless network.
Owner:COLE PARMER INSTR CO
Self-calibration method for positioning of light fixture and light fixture
The present invention relates to a self-calibration method for positioning of a light fixture and a light fixture. An absolute encoder for indicating the rotation angle of the light fixture and a driving device for driving the light fixture to rotate are included. The method includes steps of: S1. setting a plurality of preset positioning reference points around the circumference of the absolute encoder; driving the light fixture to rotate by the driving device and acquiring a corresponding first output value of the absolute encoder at each preset positioning reference point; S2. driving the light fixture to rotate by the driving device and acquiring a second output value of the absolute encoder, and when the second output value is equal to the corresponding first output value at a certain preset positioning reference point, taking the preset positioning reference point as a calibrated positioning reference point; and S3. positioning the light fixture according to the calibrated positioning reference point. According to the present invention, the light fixture does not need to rotate in a certain direction to a limit position to be stopped by colliding to find an initial position, which thus makes positioning fast, and avoids large noise due to colliding, thereby improving the experience of use.
Owner:GUANGZHOU HAOYANG ELECTRONICS CO LTD
Management apparatus, management method, and non-transitory computer readable medium
A management apparatus comprises: an acquisition unit that acquires first measurement information from a plurality of first sensors configured to measure a physical quantity related to environment in each of a plurality of areas, and acquires second measurement information from at least one second sensor configured to be mounted on at least one mobile object and to a measure physical quantity related to environment in each of the plurality of areas; an identification unit that identifies an abnormal area, where the physical quantity shows an abnormal value, based on each of the first measurement information and the second measurement information; and an authentication unit that authenticates that consistency between the first measurement information and the second measurement information is high when an abnormal area identified unit based on the first measurement information is an area identical to an abnormal area identified based on the second measurement information.
Owner:ASAHI KASEI MICRODEVICES CORP
Method for calibrating linearization function for correcting output of position sensor
ActiveUS12460953B2Automatic recalibrationApparatus with stored calibration coefficientsControl engineeringControl theory
A method for calibrating a linearization function for correcting an output of a position sensor providing a continuous output position signal is described. The method adds a new linearization point to the linearization function by detecting the maximum error at the output of the position sensor and applying the new linearization function to the output of the position sensor and repeat the adding new linearization points until all available linearization points have been defined.
Owner:RENESAS ELECTRONICS AMERICA INC
Method and device for calibrating a position sensor applied to an electric machine
This invention relates to the field of position calibration technology, specifically to a method and apparatus for calibrating a position sensor for a motor. The method involves obtaining the absolute position information of the motor through feedback of a PWM signal; providing an orthogonal signal to the motor; providing an electrical angle of the motor in a first direction; recording a first relative angle fed back by the orthogonal signal; obtaining a first calibration mapping table mapping the first relative angle to the electrical angle based on the mapping relationship between the first relative angle and the electrical angle; and setting the first calibration mapping table as the calibrated mapping table for the position sensor to perform calibration. This invention solves the problems of existing sensor position calibration being easily affected by interference and inaccurate position information by utilizing the lag absolute angle fed back by PWM information to calibrate a relative angle with better real-time performance, thus avoiding missed steps.
Owner:DONGGUAN DIRECT DRIVE TECH LTD
Sensor maintenance
A computer-implemented method of maintaining a deployed sensor unit is provided. The method receives (410) a raw sensor data stream from the deployed sensor unit (210). The method further receives (420) a set of calibration measurements associated with the deployed sensor unit, the set of calibration measurements being taken by a mobile reference sensor unit (220) whilst in proximity to the deployed sensor unit during a calibration period. The method determines (430) a drift of the deployed sensor unit based on the raw sensor data and the set of calibration measurements. The method further determines (440) whether the deployed sensor unit should be replaced based, at least in part, on the determined drift. The method schedules (460) a replacement of the deployed sensor unit in response to determining that the deployed sensor unit should be replaced and schedules (450) a further calibration of the deployed sensor unit in response to determining that the deployed sensor unit should not be replaced. The further calibration is to be undertaken by a mobile reference sensor unit whilst in proximity to the deployed sensor unit during a further calibration period to take a further set of calibration measurements.
Owner:BRITISH TELECOM PLC
Method for calibrating an orientation / position sensor
The invention relates to a method for calibrating an orientation / position sensor with which the orientation / position of a component of an equipment of a mobile working machine can be detected, with the following method steps: - at least two orientations / positions of the equipment component are selected and the distance of the at least two orientations / positions from one another is predetermined; - the at least two orientations / positions of the equipment component are identified independently of the orientation / position sensor; - a calibration parameter for the orientation / position sensor is determined from the signals emitted by the orientation / position sensor in the at least two orientations / positions of the equipment component and the predetermined distance of the at least two orientations / positions.
Owner:ROBERT BOSCH GMBH
Method for operating a sensor in a vehicle
PCT designated stageWO2026000008A1Road vehicles traffic controlParticular environment based servicesData setElectronics
The invention relates to a method for operating a sensor (3) in a vehicle (1), wherein vehicle electronics (2) of the vehicle (1) measure at least one parameter of a traffic object (5, 5') different from the vehicle (1) by means of the sensor (3), and output at least one measured value on the basis of a sensor setting, and wherein the vehicle electronics (2) receive at least one data set from at least one traffic object (5, 5') different from the vehicle (1). The vehicle electronics (2) determine or calculate at least one comparison value of the parameter on the basis of the at least one data set, and the sensor setting is calibrated on the basis of the comparison value.
Owner:AVL LIST GMBH
Sensor device and system with non-linear compensation
A sensor circuit (620) for measuring physical quantities, comprising: a signal acquisition circuit (640) including sensors (621, 622) for providing input signals (v1, v2) related to the physical quantity; and a processing circuit (650) for receiving the input signals (v1, v2) and providing an output signal (θ) representing the physical quantity. 校正 The processing circuitry includes a closed loop comprising: a first sub-circuit (660) arranged to receive the input signals (v1, v2) and feedback signals (fbi, fbq), and configured to provide a first signal (θ). 估计 ); a frequency correlation filter (632) for receiving and filtering the first signal (θ) 估计 ), and is used to provide the output signal (θ) 校正 ); a second sub-circuit (670), which is used to receive the filtered signal (θ) 校正 ) and use a nonlinear function to filter the signal (θ) 校正 ) are converted into the feedback signals (fbi, fbq).
Owner:MELEXIS ELECTRONIC TECH CO LTD
Method of operating and calibrating a group of measurement devices
The invention concerns a method of operating a group of devices (1) on an operating site (3) and of calibrating said devices (1), wherein: each device (1) is a measurement device (1) and calibrations are executed based on time schedules determined based on calibration time intervals (A) determined for each of the devices (1). The method comprises the steps of: during each calibration of each device (1): determining a degree of compliancy of the respective device (1) to a requirement specified for this device (1), based on said degree of compliancy determining a recommended interval (R) for the next calibration of the respective device (1) and determining a ratio (r) of the recommended interval (R) and the calibration time interval (A(tn-1)) currently applied to this device (1), reviewing the calibration time intervals (A) based on said ratios (r) and a predetermined set of ratio ranges (I, II, III) by: for each device (1) performing a procedure predetermined for the ratio range (I, II, III) comprising the ratio (r) determined for the respective device (1) and updating the calibration time interval (A(tn-1)) applied to the respective device (1) based on at least one of: a rule defined for the respective ratio range (I, II,III) and a rule applicable to the respective device (1), and determining the time schedule providing scheduled calibrations times (tS) at which the devices (1) shall be calibrated again based on the updated calibration time intervals (A(tn)) determined for each of the devices (1) and performing the next calibrations of the devices (1) according to the scheduled calibration times (tS).
Owner:ENDRESSHAUSER GRP SERVICES AG
Device and method for determining a rotation angle of a rotor
ActiveDE102015117763B9Automatic recalibrationUsing electrical meansElectric machineCondensed matter physics
Method for determining a rotation angle of a rotor (50) using angle sensors (25) in a motor, comprising: - detecting reference values by reading signal values from the angle sensors after the rotor (50) has been brought into a predetermined rotor position (55); - detecting amplitude values (Ax, Ay) of a magnetic field (B) during at least one full revolution of the rotor (50); - Calculation of offset values (offx, offy) of the angle sensors (10) by forming an average of peak values (A x,max , A y,max ) of the magnetic field (B); - Calculation of corrected amplitude values by subtracting the offset values (offx, offy) from the recorded amplitude values (Ax, Ay); - Calculation of amplitude difference values (ampx, ampy) from the difference of the peak values (A x,max , A y,max ) of the magnetic field (B); - Calculation of normalised amplitude values and of normalised reference values by dividing the corrected amplitude values and the reference values by a divisor corresponding to half of the amplitude difference values; - Calculation of a correction angle by calculating the ATAN value of the normalized / standardized reference values; and - Determination of the angle of rotation by calculating the ATAN value of the normalized / normalized amplitude values in the X-direction and in the Y-direction and subtracting the correction angle.
Owner:TDK MICRONAS GMBH
Method of operating and calibrating a group of measuring devices
Owner:ENDRESSHAUSER GRP SERVICES AG
A device state monitoring method and system based on automatic working condition calibration and multi-dimensional signal analysis
ActiveCN120668219BImprove real-time performanceimprove accuracyMeasurement apparatus componentsAutomatic recalibrationIndustrial equipmentReliability engineering
The present application relates to the technical field of industrial equipment state monitoring, and particularly relates to a kind of equipment state monitoring method and system based on automatic working condition calibration and multidimensional signal analysis, comprising: the present application is combined by automatic working condition calibration, multidimensional signal accurate analysis, dynamic anomaly diagnosis and intelligent interactive feedback technology, realizes the full-link automation closed-loop monitoring of equipment operation state from calibration to diagnosis to abnormal response, significantly improves the real-time, accuracy and intelligent level of equipment state monitoring process, solves the problems of inaccurate working condition recognition, single feature analysis dimension and insensitive abnormal state recognition in the prior art, and effectively improves the equipment operation reliability, reduces the fault risk and maintenance cost.
Owner:HECHEN ZIYI (JIAXING) TECH CO LTD
A sensor intelligent calibration system and method
ActiveCN120970709BAutomatic recalibrationThermometer testing/calibrationCommunication interfaceData management
The application relates to the technical field of sensor calibration, and discloses a sensor intelligent calibration system and method, which comprises a hardware integrated host, a main control module, a calibration data storage module, a communication interface module, a sensor type identification module and PC end detection software. The method is applied to the system. According to the application, the multi-channel design of the hardware integrated host realizes convenient access and real-time calibration of multiple types of sensors, reduces the time consumption of equipment switching, solves the wide-temperature-range nonlinear compensation problem based on the impedance characteristics and voltage range matching segmented compensation model of the sensor type identification module, improves the calibration accuracy of platinum resistance, thermocouple and other sensors, and integrates standard source data to generate a calibration report through the calibration data storage module and the PC end detection software, realizes whole life cycle data management and quality tracing, and thus improves the adaptability to various sensors, calibration efficiency, data consistency and expandability.
Owner:HU NANJING QI BIOTECHNOLOGY CO LTD
Management device, management method, and computer program product
The invention provides a management apparatus, a management method, and a computer program product. This management device is provided with: an acquisition unit that acquires first measurement information from each of a plurality of first sensors that measure physical quantities relating to the environment of each of a plurality of regions, and acquires second measurement information from at least one second sensor that is mounted on at least one moving body and that is mounted on the plurality of regions; measuring physical quantities related to the environment in each of the plurality of regions by the movement of the at least one moving body; a specifying unit that specifies, on the basis of each of the first measurement information and the second measurement information, an abnormal region in which the physical quantity exhibits an abnormal value among the plurality of regions; and an authentication unit that authenticates that the first measurement information and the second measurement information have high consistency when the abnormal region determined by the determination unit on the basis of the first measurement information and the abnormal region determined by the determination unit on the basis of the second measurement information are the same region.
Owner:ASAHI KASEI MICRODEVICES CORP
Micropore array grating temperature and pressure sensor and preparation method and test calibration method thereof
ActiveCN119533532BForce measurement by measuring optical property variationAutomatic recalibrationGratingTransmission channel
The application discloses a micro-hole array grating temperature and pressure sensor, which comprises an optical waveguide, a micro-hole array grating and a micro-cavity array grating, the optical waveguide has an optical transmission channel inside, the micro-hole array grating and the micro-cavity array grating are formed in the optical transmission channel of the optical waveguide in parallel, the micro-hole array grating is communicated with the outside environment, and the micro-cavity array grating is isolated from the outside environment. The micro-hole array grating temperature and pressure sensor can avoid the mutual influence of the environment temperature and the environment pressure during measurement, so that the different environment temperatures and the different environment pressures can be measured simultaneously. The application further provides a preparation method and a test calibration method of the micro-hole array grating temperature and pressure sensor.
Owner:SHENZHEN UNIV
Improving data monitoring and quality using AI and machine learning
Systems and methods are provided for improving statistical and machine learning drift detection models that monitor computing health of a data center environment. For example, the system can receive streams of sensor data from a plurality of sensors in a data center; clean the streams of sensor data; generate, using a machine learning (ML) model, an anomaly score and a dynamic threshold value based on the cleaned streams of sensor data; determine, using the ML model and based on the anomaly score and the dynamic threshold value, a correctness indicator for a first sensor in the plurality of sensors; and using the correctness indicator, correct the first sensor.
Owner:HEWLETT PACKARD ENTERPRISE DEV LP
Providing auto-calibration of accelerometer and / or hall-sense position counter in a crossing gate mechanism
A system of auto-calibration is provided in a crossing gate mechanism. The crossing gate mechanism comprises a shaft, a gate arm, a gate-down buffer, a brushless DC (BLDC) motor, a motor speed and position controller, an accelerometer and a hall-sense position counter. The system auto-calibrates the accelerometer and / or the hall-sense position counter when they are in disagreement due to temperature or due to some other phenomenon.
Owner:SIEMENS MOBILITY PTY LTD BRANCH +1
Absolute position sensor
A mechatronic system comprises an electric actuator for driving a mechanical member, and drive electronics for controlling the actuator associated with a position sensor including at least one magnetosensitive probe including a programmable digital switch delivering an electrical signal dependent on the angular position of the mechanical member. The drive electronics comprise a microcontroller having at least one wake-up mode corresponding to the activation of the microcontroller only by a programmable wake-up circuit. The position sensor comprises a programmable wake-up circuit delivering a signal to a bus in the event of the mobile member moving. One of the microcontrollers controls, upon activation by a wake-up signal transmitted by the programmable digital switch: initialization of the access control register for controlling access to the EEPROM memory, writing of a digital datum to an EEDATA register of the EEPROM memory, and switching to rest mode at the end of a predetermined period.
Owner:SONCEBOZ AUTOMOTIVE SA
System and method for analyzing a fluid
ActiveCN115917312BAnalysing fluids using sonic/ultrasonic/infrasonic wavesInvestigating moving fluids/granular solidsZooidAnimal science
Systems and methods for analyzing milk are described. A plurality of first type sensors are provided, each first type sensor being associated with a respective one of a plurality of teat cup sets of a milking system and configured to analyze milk extracted by the teat cup set from an individual animal to determine at least one first type sensor value of a parameter of the milk across an event period. At least one of a second type sensor associated with at least one of the plurality of teat cup sets is configured to analyze milk extracted by the teat cup set from the individual animal to determine at least one second type sensor value of the parameter of the milk within the event period, wherein the second type sensor is less susceptible to animal-specific bias than the first type sensor. The number of second type sensors in the system is less than the number of first type sensors. Based on the at least one first type sensor value and the at least one second type sensor value of the parameter determined for the individual animal, an animal-specific bias correction is determined for the individual animal. The animal-specific bias correction is applied to the first type sensor values of the parameter obtained from the first type sensors for milk extracted from the individual animal.
Owner:SCR ENGINEERS LTD
Adaptive downhole inertial measurement unit calibration method and apparatus for autonomous wellbore drilling
Described is a system for adaptive calibration of a sensor of an inertial measurement unit. Following each sensor measurement, the system performs automatic calibration of a multi-axis sensor. A reliability of a current calibration is assessed. If the current calibration is reliable, then bias and scale factor values are updated according to the most recent sensor measurement, resulting in updated bias and scale factor values. If the current calibration is not reliable, then previous bias and scale factor values are used. The system causes automatic calibration of the multi-axis sensor using either the updated or previous bias and scale factor values.
Owner:HRL LAB
Method and system of calibration of a sensor or a network of sensors
A method and system of calibration of one or more sensors are provided in a given environment. In a reliable calibration phase, in a first time period after calibration of the sensor, the method determines an environment response function based on a known sensor response function. The environment response function is a spatio-temporal response of the environment representing the environmental response operating on the event to result in the measurand field. Subsequently, in an unreliable calibration phase, in a second time period after the first time period, the method estimates a current sensor response function based on the environment response function determined in the reliable calibration phase. The method outputs a calibration function based on the estimated current sensor response function for updating calibration of the sensor.
Owner:UNIVERSITY OF CAPE TOWN
Recalibrating sensor values
PendingEP4639097A1Automatic recalibration
A raw sensor data stream received from a sensor unit is stored. A first set of calibration measurements is received from a mobile reference sensor unit over a first calibration period. A calibrated sensor data stream is generated from the raw sensor data stream using the first set of calibration measurements. A second set of calibration measurements is received from the mobile reference sensor unit over a second calibration period later than the first calibration period. A second calibrated sensor data stream if generated from the raw sensor data stream using the second set of calibration measurements. A time is identified where there was a change of drift in the sensor unit. A recalibrated sensor data stream is generated comprising: values from the first calibrated sensor data stream up to the identified time; and values from the second calibrated sensor data stream after the identified time.
Owner:BRITISH TELECOM PLC
Method for diagnosing a sensor system in a part-specific manner
ActiveUS12618697B2Automatic recalibrationApparatus with stored calibration coefficientsMedicineSystem diagnosis
A method for carrying out a diagnosis of a sensor system. The method including: (i) ascertaining a processing specification of a test signal and / or of a characteristic physical variable and / or its respective change as a function of at least one part-specific property of the sensor system; and (ii) carrying out a subsequent diagnosis of a sensor element of the sensor system, using the processing specification ascertained in (i).
Owner:ROBERT BOSCH GMBH
Position sensor calibration method and apparatus applied to electric motor
The present invention relates to the technical field of position calibration, and in particular to a method and a device for calibrating a position sensor applied to a motor. The method comprises acquiring absolute position information of a motor based on feedback of a PWM signal; giving an orthogonal signal to the motor; giving an electrical angle in a first direction to the motor, and recording first relative angles fed back by the orthogonal signal; acquiring a first calibration mapping table for mapping the first relative angles to the electrical angle based on a mapping relation between the first relative angles and the electrical angle; and setting the first calibration mapping table as a mapping table after position sensor calibration to perform calibration; utilizing an absolute lag angle based on feedback of a PWM signal to calibrate relative angle with relatively better real-time performance, in order to avoid step loss.
Owner:DONGGUAN DIRECT DRIVE TECH LTD
Method of inspecting a sensor
A method of inspecting a sensor including generating a first model based on first big-data including first inspection results for sensors of a same type connected to a current inspection environment, generating first target characteristic coefficients for channels included in the first model, generating first characteristic coefficients for channels included in a current sensor, and generating first compensation coefficients for the channels included in the current sensor based on the first target characteristic coefficients and the first characteristic coefficients.
Owner:SAMSUNG DISPLAY CO LTD