392results about "Weighing apparatus testing/calibration" patented technology

The invention discloses a truck information acquisition method and system integrating vehicle-mounted weighing and multi-positioning, and relates to the technical field of data processing, multi-source sensing cooperative acquisition is performed through a vehicle-mounted weighing sensor, a GPS positioning unit, a middle intersection positioning unit and a vehicle-mounted IMU, timestamps are added to data streams based on a unified system clock, and the data streams are acquired through a multi-source sensor. Synchronously acquiring static calibration parameters and driving attitude parameters; constructing a load transfer compensation model, and deducting false load components caused by pitching, rolling, acceleration and deceleration and vibration of the vehicle to obtain an actual load sequence; a confidence model is constructed based on sequence data features and attitude association verification to represent the confidence of the two types of sequences, and a fusion position sequence in a unified time domain is generated by adopting a weighted fusion and interpolation compensation strategy; and finally, through time synchronization alignment and sampling frequency compensation, a load-position corresponding relation is established, a joint representation data set is generated, and high-precision and full-scene integrated acquisition of the truck operation core data is realized.

The invention relates to the field of industrial metering, and discloses a data-driven belt weigher intelligent calibration method and system, and the method comprises the steps: when a calibration command is triggered, collecting real-time data to form a feature vector input model, calculating and predicting a calibration coefficient and zero offset, writing the calibration coefficient and zero offset into a metering instrument to complete calibration, carrying out the importance analysis and screening of feature variables, and obtaining a calibration result. Optimizing model parameters; and performing rationality verification and adaptive adjustment on the prediction parameters, generating a calibration report, and adding data to a historical library. According to the method, a data-driven artificial intelligence model which is fully trained and can deeply reproduce the internal rule of the physical calibration process is used for replacing the traditional physical chain code calibration operation which is time-consuming and labor-consuming and possibly causes danger. Through historical data learning, the mapping relation between the operation states of the belt weigher under various working conditions and environments and the calibration parameters of the belt weigher is established, so that non-contact, high-efficiency and intelligent automatic calibration is realized.

A patient handling apparatus (10) comprising a base (30) with a frame (31) and a patient support device (20). The patient handling apparatus (10) further comprises a weighing arrangement (90) for weighing a patient supported by the patient support device (20), said weighing arrangement (90) comprising a sub frame (91) and a plurality of load sensors (95, 96, 97). The sub frame (91) is arranged on the load sensors (95, 96, 97), said load sensors (95, 96, 97) defining a weighing area (S), whereby the patient support device (20) is mounted to the frame (31) such that a central point (C) of a seat support portion (21) of the patient support device (20) is positioned outside the weighting area (S) in at least one position of the patient support device (20).

The invention discloses a weighing error compensation method for intelligent weighing integrated equipment, and particularly relates to the technical field of weighing measurement, and the method comprises the following steps: recognizing a weighing scene based on real-time working condition data, and starting a preset error compensation model; collecting sensor input data and a compensation value in real time and generating a system health state triple by embedding a meta-cognitive detection mechanism; a heartbeat timeout event is triggered by a triple exception, and a protection mechanism is started when a frequency threshold is exceeded; extracting a historical algorithm version and matching an optimal version for degraded operation; monitoring the state of the triple during the operation of the target historical version, and determining whether to recover the original model or send out early warning; according to the method, the weighing scene is recognized in real time, the preset error compensation model is started, the input data and the compensation value are monitored in combination with the meta-cognitive detection mechanism, the system health state triple is constructed, and the protection mechanism is triggered based on the heartbeat timeout frequency, so that self-adaptive, high-precision and high-safety control of error compensation is realized.

The invention relates to a belt weigher weighing precision compensation method based on multi-sensor data fusion. According to the method, an original weighing signal and an electromagnetic interference signal of the belt weigher in a running state and a baseline noise signal in a no-load state are synchronously acquired, a feature vector is extracted based on the electromagnetic interference signal, and an intermodulation noise component in the weighing signal is predicted by using a nonlinear system identification model in combination with the baseline noise signal. Then, the noise component is subtracted from the original weighing signal through an adaptive cancellation algorithm to obtain a local compensation weighing signal, and finally, a final weighing signal is generated based on a plurality of local compensation weighing signals through a signal-to-noise ratio weighted fusion algorithm, so that intermodulation noise caused by electromagnetic interference generated by the variable frequency driver is effectively suppressed. The weighing precision and the anti-interference capability of the belt weigher are improved.

The utility model provides a human body scale four-corner measurement value deviation automatic testing machine. The human body scale four-corner measurement value deviation automatic testing machine comprises a rack, a conveying belt, a centering device and a weight loading device. The conveying belt is used for automatically conveying a to-be-tested human body scale into a test area; the centering device accurately controls the movement of a first positioning plate, a second positioning plate, an X-axis positioning rod and a Y-axis positioning rod, so as to achieve the centering and positioning of the human body scale. The weight loading device accurately controls the weights to load the weights with different weights on the four corners of the human body scale through the cooperative work of the second X-axis driving assembly and the second Y-axis driving assembly, detects the weight output value of the human body scale in real time, and compares the weight output value with the actual weight of the weights, thereby accurately measuring the deviation of the measured values of the four corners of the human body scale. The device has the advantages of high test precision, fast test speed, simple operation and the like, can automatically, accurately and efficiently detect the deviation of the four-corner measured values of the human body scale, and meets the test requirements of different models of human body scales.

The application discloses a kind of real-time intelligent calibration electronic balance data acquisition and analysis system, it is related to precise measurement technical field, the system includes following component parts: high-precision sensor module, real-time intelligent calibration system, self-diagnosis and early warning function and efficient data acquisition and analysis platform.The application is integrated high-precision sensor module, and temperature compensation and anti-interference design are used, the influence of external environmental factors on measurement accuracy is effectively reduced, in addition, real-time intelligent calibration system can continuously monitor environmental parameters, and the calibration parameter of balance is automatically adjusted based on algorithm, so as to keep the continuous accuracy of measurement result without manual intervention, this intelligent calibration mode significantly improves the measurement accuracy and stability of electronic balance, meets the demand of modern precise measurement field to high-precision measurement.

The invention belongs to the field of animal husbandry management, and particularly relates to a livestock online weighing error analysis method based on state classification and time-frequency characteristics. According to the scheme, firstly, an original weighing signal is subjected to modal decomposition to obtain a weight prediction value, and a reference error is calculated in combination with a static weighing value; secondly, extracting time-frequency domain characteristic parameters after self-adaptive windowing processing is carried out on the signals, and exploring the relation between the time-frequency domain characteristic parameters and reference errors in different active states; and finally, establishing a state classification model and two types of error prediction models, and performing hyper-parameter optimization on the error prediction models by using a myxobacteria optimization algorithm. In practical application, the state classification model is utilized to perform state classification on the weighing object, and the specified error prediction model is called in combination with the classification result to realize weighing error prediction. According to the invention, the problems of insufficient precision and poor generalization of the existing scheme are overcome; the method can be used for compensating the error of the online weighing platform so as to promote the development of fine breeding.

This invention relates to the field of belt scale metering and discloses an intelligent diagnostic and interpretation system for the reliability of belt scale metering results, used for diagnostic and analysis scenarios after belt scale metering results are generated. The system includes, after the metering results are generated, acquiring a multi-source evidence set through an evidence aggregation module, comprising current and historical metering results, operating condition information, unit status, verification status, and abnormal events, conducting a comprehensive evaluation, and having a factor interpretation module identify the main factors affecting reliability, forming structured interpretation information, generating a graded diagnostic conclusion, and outputting a complete report including reliability level, risk source, result referenceability, and usage recommendations. This invention solves the problems of existing technologies having single judgment criteria, lack of interpretive capabilities, and insufficient accuracy in assessments under complex operating conditions, significantly improving the understandability, referenceability, and practical application value of belt scale metering results in industrial production.

The utility model discloses a kind of weighing elastomer pressure test equipment, including stand, clamping and pressing assembly, pound platform group and linkage rod. The clamping and pressing assembly is set on the horizontal table of stand top, including movable clamp holder, fixed clamp holder and adjusting rod, adjusting rod is connected to the bottom of fixed clamp holder and can be slidably adjusted, movable clamp holder is connected with linkage rod by connecting rod assembly. The pound platform group is set below stand, including guide rod, pound seat and deflection rod, pound seat is used for loading weight, its bottom and deflection rod sliding contact, deflection rod middle part and linkage rod bottom end rotationally connected, other end and stand rotationally installed. The adjusting rod bottom is equipped with ratchet bar, and is locked by cooperating with lock tooth plate engagement, and deflection rod and stand are equipped with tension spring. By single operation of linkage rod, clamping and loading action can be realized simultaneously, and have self-resetting function. The equipment structure is compact, convenient to adjust, test efficiency is high, suitable for different specifications weighing elastomer's fast and stable clamping and loading test.

The invention belongs to the weighing apparatus calibration field, and discloses a weighing apparatus weighing calibration device comprising a weighing apparatus, the top of the weighing apparatus is provided with a frame body, the frame body is provided with a plurality of installation ports, balancing weights are detachably installed in the installation ports, the bottom of the frame body is fixedly connected with universal wheels, and the rear sides of the fixed wheels are provided with moving wheels. A limiting structure is arranged at the bottom of the frame body and located between the universal wheels, two fixed handles are fixedly connected to the step side of the frame body, adjusting parts are arranged at the bottoms of the two fixed handles, grooves are formed in the two sides of the fixed wheels and the universal wheels and located at the bottom of the frame body, and connecting plates are fixedly connected to the interiors of the grooves. Through cooperative use of an air bag, a connecting pipe, a pushing block, a movable rod, a fixed cylinder, a fixed wheel and a mounting block, the situation that the frame body topples over, and consequently measurement of the measurer is not facilitated, and improvement of the accuracy of follow-up correction is not facilitated is prevented.

The embodiment of the application discloses a kind of calibration method and calibration system of container overloading detection, calibration device is arranged between container overloading detection device installed on hanger and container, when hanger hoists container, first sub-correction coefficient is determined according to the first group of detection signals of container overloading detection device and the second group of detection signals of calibration device weighing container;The same container is placed on overloading detection platform, and the third group of detection signals generated by the reference detection device weighing container is used to determine the second sub-correction coefficient.The total correction coefficient for modifying the output result of container overloading detection device is determined by integrating the first sub-correction coefficient and the second sub-correction coefficient, which is beneficial to improve the measurement accuracy of calibrated container overloading detection device, and convenient to operate, which is beneficial to realize the calibration and verification of container overloading measurement device.

The present invention discloses a force sensor (100) and a method for configuring a calibration mechanism within such a force sensor (100), the method comprising the steps of: connecting an end of a calibration lever (1071) to the loading end (103) of the force sensor (100); adjusting the center of gravity (G0) of the unloaded calibration lever (1071) in an unloaded state so that the center of gravity (G0) is located on a substantially horizontal line (H) passing through the center of the calibration lever fulcrum (1031) at the fixed end (103) of the force sensor (100); and adjusting the center of gravity (G1) of the calibration lever (1071) under the load of a calibration weight (106) in a fully loaded state so that the center of gravity (G1) is located on a substantially horizontal line (H) passing through the center of the calibration lever fulcrum (1031). By controlling the position of the lever and the position of the fulcrum within the force sensor to be approximately on the same horizontal line, calibration errors caused by tilt within the force sensor are reduced.

The invention provides a real-time feedback glass batching parameter management interaction method and a real-time feedback glass batching parameter management interaction system, and relates to the technical field of glass production data management. An error coefficient can be automatically generated after scale calibration, a batching parameter adjustment scheme is dynamically recommended according to the error coefficient, flexible confirmation or intervention of a user is supported, weighing deviation can be monitored in real time in the batching process, active early warning can be conducted when the deviation continuously exceeds the limit, scale calibration or manual processing is guided, and the weighing accuracy is improved. Therefore, the weighing precision, the response speed and the automation level of the glass batching system are remarkably improved, and the problem of batching error accumulation caused by equipment drift or parameter solidification is effectively avoided.

A calibration device for weighing systems, the calibration device may be configured to apply a force between a first part and a second part, e.g. between a container and a base, the calibration device having a stationary assembly and a dynamic assembly, wherein the dynamic assembly is configured to move relative to the stationary assembly during use, wherein the stationary assembly comprises: a first attachment part configured to be attached to a container or a base, an actuator device body, a load cell having a first end and a second (load receiving) receiving end, where the first end is mechanically coupled with the actuator device body and the second end is mechanically coupled with first attachment part, the dynamic assembly comprising: second attachment part configured to be attached to a container or a base (foundation),a moveable part reciprocating in the device body along a force application axis and a moveable rod connected with the moveable part and connected with the second attachment part.

The application relates to an intelligent evaluation method and system for judging the balance of a debugging tray balance, which comprises the following steps: establishing a target detection model and a key point detection model, photographing a debugging process, correcting image distortion according to the position of the balance in the photographed image, obtaining a corrected balance angle of the balance, obtaining a real-time included angle between a first straight line and a second straight line of the balance during the debugging process, calculating the difference between the real-time included angle and the corrected balance angle, comparing the difference with a non-balance threshold value, eliminating data in a non-balance state, calculating the mean value of the collected data, comparing the mean value with a balance threshold value, and judging the balance of the balance when the mean value is less than the balance threshold value and the duration is greater than or equal to a first set time. The included angle between the straight lines is used to judge the balance, the judgment method is expanded, and the balance judgment accuracy is improved.

The present application belongs to the technical field of weighing measurement, and specifically discloses an online weighing measurement system and method for molten iron ladles, which comprises a transportation data acquisition module, distributed weighing detection points and ladle load state sensors are arranged, and original weighing signals, ladle wall temperatures and position data are collected in real time throughout the whole process; a weighing signal processing module, which performs temperature gradient compensation and zero point translation on the original signals based on the ladle wall temperature to obtain primary corrected data; a data fusion and prediction module, which generates a weight-position-time curve by aligning the data, thereby identifying abnormal weight events, evaluating the erosion state of the ladle lining and predicting the temperature change trend of the molten iron; and a weighing determination output module, which performs secondary correction on the primary corrected data based on the analysis results and outputs the final weight of the molten iron. The present application realizes dynamic weighing that can be traced throughout the whole transportation process, improves the accuracy of the weighing results, and thus effectively supports the precise control of subsequent production operations.

The utility model belongs to the technical field of battery manufacturing, and particularly relates to a weighing instrument off-line verification tool, which comprises a fixing frame and a mounting frame, and is characterized in that the fixing frame is arranged at a scanning position in a weighing instrument; a pole piece can be clamped on the mounting frame, and the mounting frame is detachably connected with the fixing frame; when the mounting frame is connected with the fixing frame, the pole piece is located at the scanning position; compared with the prior art, the tool provided by the utility model is higher in calibration efficiency of the weight measuring instrument and lower in calibration cost.

The present application belongs to the field of rotor balance, especially a rotor balance and a calibration method thereof, aiming at the problem that the existing balance is interfered and coupled between each component in the loading direction, affecting the use effect, the present application proposes the following scheme, the rotor balance comprises a rotor shaft, a sleeve, a loading body, a swelling sleeve and a positioning key, the rotor shaft and the sleeve are connected into a whole through the positioning key, the sleeve is slidingly connected with the inner cavity of the loading body, and the top of the sleeve and the inner cavity of the loading body are tightly matched through the swelling sleeve, and the calibration method comprises the following steps: S1, fixing the rotor balance or the bar balance on the supporting device, and connecting the loading body to the free end of the balance; S2, arranging 12 force loading points on the loading body, and exerting the pre-programmed load on the force points through 12 load actuators, the present application accurately loads in the loading direction, and reduces the interference and coupling between each component.

The invention relates to a dynamic weighing method based on a piezoelectric acceleration sensor, and belongs to the technical field of dynamic weighing systems, and the method comprises the following steps: S1, installing at least one piezoelectric acceleration sensor on a structural body bearing an object to be weighed, and collecting a vibration acceleration signal of the structural body under a dynamic load in real time; s2, applying an active excitation signal with a preset frequency and a preset amplitude to the structural body through an actuator; s3, acquiring an output signal of the piezoelectric acceleration sensor under the active excitation, and extracting a vibration response component in the output signal; s4, calculating the dynamic mass of the to-be-weighed object based on the vibration response component; and S5, outputting a calculation result of the dynamic quality. According to the dynamic weighing method based on the piezoelectric acceleration sensor, vibration interference is effectively separated and compensated through an active excitation and response analysis mechanism, and the weighing precision in non-static states such as vibration and movement is remarkably improved.

The application relates to the technical field of data processing, and discloses a data processing method and system of an intelligent electronic scale and a storage medium. The method comprises the following steps: acquiring a current environmental parameter data set, extracting a temperature measurement value, determining a temperature interval, and calculating relative position information; calling humidity correction parameters, performing weighted processing to generate a boundary connection parameter set; inputting the boundary connection parameter set into a difference calculation unit to obtain a numerical difference and a slope difference of a connection point, and integrating to generate connection difference data, performing smoothing optimization processing, and generating an adjustment parameter set; constructing a transition correction function to calculate a continuous correction value across a full temperature range; acquiring an original weighing measurement signal, superimposing and operating the continuous correction value and the original weighing measurement signal, obtaining an adjusted reading, and after verification, starting the acquisition process of the current environmental parameter data set to form a closed loop processing. The application improves the weighing precision and stability of the intelligent electronic scale.

The invention belongs to the technical field of dynamic truck scale metering performance calibration, and discloses a big data-based overload control off-site law enforcement dynamic truck scale metering performance optimization system, which comprises a data acquisition and transmission device and a system platform, and is characterized in that the data acquisition and transmission device is used for acquiring state data of a dynamic truck scale and weighing data of a vehicle; the system platform receives data acquired by the data acquisition and transmission device and also receives weighing data of other weighing devices on a vehicle driving path, and has the beneficial effects that through speed-error distribution analysis and error coincidence data volume statistics, the metering performance of the dynamic motor truck scale under different speed sections is accurately evaluated, and the accuracy of the dynamic motor truck scale is improved. The metering performance of the dynamic truck scale is divided into four grades of excellent, good, general and poor, and corresponding optimization measures are taken for different grades, so that the metering stability and accuracy of the dynamic truck scale are remarkably improved, and the service life of equipment is prolonged.

The invention discloses a calibration system and method for an oiling machine, and relates to the technical field of auxiliary production, and the system comprises a calibration main body module which is arranged at the oil outlet end of the oiling machine and is used for receiving an oil product discharged by the oiling machine; the metering module is used for collecting the oil product weight and the oiling duration in the calibration process; the control calculation module is used for determining the actual oiling amount based on the oil product weight and the oiling duration; and the man-machine interaction module is used for acquiring calibration parameters input by a user and displaying a calibration result. According to the method, subjective errors caused by reading, timing and other operations in a traditional manual calibration method are effectively overcome, the efficiency and precision of calibration work are improved, meanwhile, the situation that the production process is interrupted due to calibration is avoided, and continuous and stable operation of a production line is guaranteed.

A method of identifying a defective dispersion feeder in a system suitable for supplying food product from a supply position to a plurality of batch measuring units comprises supplying product to a dispersion feeder configured to receive product at the supply position and distribute the product towards each of the plurality of batch measuring units, operating the dispersion feeder to distribute the product towards each of the plurality of batch measuring units, repeatedly measuring the amount of product at the dispersion feeder using a dispersion feeder measuring unit and supplying additional product to the dispersion feeder based on said measurements, receiving product in at least some of the plurality of batch measuring units, measuring the product received in the plurality of batch measuring units, and outputting an indication that the dispersion feeder is defective based on the measurements of the product received in the plurality of batch measuring units.

The application discloses a correction method and system based on an intelligent body fat scale and belongs to the technical field of body fat scales. The body fat scale comprises a scale body assembly, a shell assembly is arranged at the bottom of the scale body assembly, a correction assembly is arranged at the bottom of the shell assembly, the scale body assembly comprises a panel, a mounting block is fixedly installed at the bottom of the panel, a detection module is fixedly installed at the four corners of the mounting block, a pressure sensor is fixedly installed at the bottom of the detection module, an electrode sheet is fixedly installed at the top of the detection module, the electrode sheet is arranged at the top of the panel, the correction assembly comprises a communication strip, connecting rods are fixedly installed at the two ends of the communication strip, correction blocks are fixedly installed at the two ends of the connecting rods, correction electrodes are fixedly installed at the top of the correction blocks, the four correction electrodes are electrically connected, and fixed resistors are arranged between the correction electrodes. The application can effectively improve the convenience of correcting the body fat scale and has high practical value.

This invention discloses a device for detecting the presence of coke in coke cans on a dry quenching coke transport vehicle, belonging to the field of coking technology. It includes a frame, a rotating turntable, and a support assembly. The support assembly consists of several sets of support seats and three sets of weighing platforms. The support seats and weighing platforms are evenly distributed in a ring on the upper surface of the frame, with the included angle between the three sets of weighing platforms being 120°. The rotating turntable is positioned above the support assembly and is guided by the support assembly to rotate. By placing the weighing platforms below the rotating turntable, the combined action of the support seats and weighing platforms achieves both support and guidance for the rotating turntable, without affecting its rotational function. This also enables real-time detection of the actual weight of the coke cans, revealing the current coke storage status within the cans. The use of three sets of weighing platforms at a 120° angle ensures the accuracy and stability of the weight acquisition signal. Furthermore, the cross-verification of the detection data from the three sets of weighing platforms ensures the accuracy of the detection results.

The invention discloses a rigid transmission type high-precision belt weigher automatic calibration device, which comprises a mechanical transmission mechanism, the mechanical transmission mechanism comprises a shaft lever support, the shaft lever support and a shaft lever main support are welded into a whole and are fixed on a weigher body support beam to form a rigid bearing frame, and the rigid bearing frame is fixed on the shaft lever main support. The calibration device comprises a shaft rod main support, two sides of the shaft rod main support are provided with liftable platforms, each liftable platform comprises a positioning platform and an electric push rod arranged below the positioning platform, the calibration device further comprises a weight support frame, and the weight support frame is arranged on a weighing sensor of the electronic belt scale. A weight protection frame is further fixedly arranged on the weight supporting frame, the weight protection frame is connected to the weight supporting frame through bolts or in a welding mode, and the weight protection frame is arranged in an open mode.

Methods and systems are described for scale-based inventory management and monitoring at a location, such as hospitals. Scales may be configured to receive a tray / holder for a given type of supply item, e.g., bandages or syringes. A weight determined by the scale may be associated with a given quantity of the respective item. Data around supply delivery and restocking is collected and can be used in an AI / ML model to optimize delivery routes, labor options for delivery, delivery speed, or other factors useful in optimizing supply and logistics in any location with logistics challenges.

The invention provides a vision-based detection assembly, an electronic scale flatness detection device and an electronic scale, and belongs to the technical field of flatness detection. A vision-based detection assembly comprises a detection table used for placing an electronic scale, and further comprises an electric push rod, the electric push rod is fixedly arranged on the detection table, and a top plate is fixedly arranged at the telescopic end of the electric push rod; the rotating part is fixedly connected with the top plate through a connecting rod, and a pressure detection assembly used for detecting the flatness of the bearing surface of the electronic scale is arranged on the rotating part; the rotating part is provided with a displacement assembly used for driving the pressure detection assembly to move on the bearing surface of the electronic scale and a distance adjusting assembly used for adjusting the working range of the displacement assembly. Through composite track detection and self-adaptive structural design, the detection coverage rate of the bearing surface of the electronic scale is improved, the problems of efficiency, precision and universality of flatness detection of the electronic scale are systematically solved, and the production quality and production efficiency of the electronic scale are ensured.

An inventory system for a vehicle 100 includes a plurality of containers 104 for holding small items e.g. pipe fittings, screws. A controller instructs sensors e.g. weight sensors to measure the conte