9058results about "Volume metering" patented technology

Various automated techniques are disclosed herein for monitoring and assessing real-time and future operational and health statuses of real-world assets (e.g., physical devices, components, equipment, structures, buildings, machines, infrastructure, piping systems, etc.). A monitoring system incorporates the use of intelligent Monitoring Devices for monitoring pipe systems and / or other infrastructure for leaks / issues using IoT devices and machine learning. One or more Monitoring Device(s) are attached to specific physical equipment / structure(s) to be monitored. A Monitoring Device performs comprehensive field data gathering. The collected field data is used to train a customized ML model, which is stored locally in that Monitoring Device. The Monitoring Device monitors current conditions of the pipe using various sensors, and uses its locally stored customized, trained model to perform real-time, edge-based analysis of the monitored data to identify possible issues in real-time and / or to predict future maintenance / service needs without relying on continuous cloud connectivity.

Disclosed herein is urinary output monitoring system including a urinary collection device having a flow meter in communication with a monitor. The urinary collection device catheter includes a urine collection bag, a drainage tube and a urinary catheter. A console of the flow meter wirelessly communicates with a console of the monitor. The monitor depicts urine flow rate information on a display and wirelessly transmits urine flow rate information to an EMR system. The flow meter includes a flow meter identifier and the system links the urine flow rate information to the flow meter identifier. The monitor further links the flow meter identifier with a patient identification from the EMR system and depicts the patient identification on the display.

The invention provides a pulse output sensor control system for an electromagnetic flowmeter, which relates to the technical field of electromagnetic flowmeters and comprises an acquisition module, a modeling module, a generation module, a judgment module and an output control module. The modeling module performs state vector construction and drift identification; the generation module generates control parameters based on state vectors and synthesizes pulse signals; the judgment module evaluates signal deviation and generates scores; the output control module dynamically updates the control parameters according to the scores and drift information; and real-time adaptive adjustment of pulse output is realized. The system can effectively improve the stability and accuracy of output signals of the electromagnetic flowmeter under complex working conditions.

An optimization method based on measurement data of an ultrasonic gas meter, includes: if a relative strength index obtained by analysis does not meet expectation, calculating the degree of influence of a measurement condition on the relative strength index and determining whether to compensate the measurement data of the gas meter according to magnitude of the degree of influence; constructing an initial compensation model for the measurement data of the gas meter; performing sensitivity analysis on the optimized compensation model after multi-variable optimization; completing the correction of display data of the gas meter by a compensation factor combined with real-time temperature and pressure data and obtaining fluid features in a pipeline; matching the gas meter with the corresponding optimization plan from the pre-constructed gas meter optimization knowledge graph based on the correspondence between the fluid features and an optimization plan; and executing the optimization plan to optimize the gas meter.

The invention relates to the technical field of automatic control, in particular to an intelligent Internet of Things water meter control method and system.The intelligent Internet of Things water meter control method comprises the steps that the water consumption of a water meter at the current time node is obtained, the water consumption of the current time node is input into an improved machine learning model, the water consumption state of the current time node is output, and if the water consumption state is abnormal, the water meter is started; if yes, controlling the water meter to send out an early warning signal and stopping water supply; wherein the improved machine learning model comprises the steps of carrying out iterative training on the machine learning model by utilizing a loss function and calculating a loss function value of a current time node, and the historical loss function value is positively correlated with the abnormal degree of the water consumption of the historical time node and is inversely correlated with the surge coefficient of the water consumption of the historical time node. According to the method, the problem that the overall performance and reliability of the intelligent water meter are not high possibly due to potential insufficiency of an existing algorithm in the aspects of detection efficiency and accuracy is solved.

A system performs a method for characterizing passage of a patient fluid through a conduit. The method includes quantifying flow of fluidic content through a conduit, where the fluidic content includes a patient fluid, estimating a concentration of a fluid component of the patient fluid in the fluidic content, and characterizing passage of the patient fluid loss through the conduit based on the quantified flow and the concentration of the fluid component. At least one of the quantified flow or the concentration of the fluid component is based on sensor data from a sensor arrangement coupled to the conduit. Other apparatus and methods are also described.

The invention is suitable for the technical field of gas flow meters, and provides an internet of things gas flow meter which comprises a flow meter body, a connecting assembly, a pressing assembly, a supporting assembly and a transmission assembly, the connecting assembly comprises a rod sleeve, a connecting bolt and a driving mechanism, and the driving mechanism comprises an outer gear ring, a driven gear and a stepping motor. The pressing assembly comprises a connecting disc, a pressing plate, a pressing pin, a first compression spring and a first connecting rod, the connecting assembly, the pressing assembly, the supporting assembly and the transmission assembly are arranged, during installation, the connecting assembly is started for connection, the connecting assembly drives the supporting assembly to be started through the transmission assembly, and after installation is completed, the supporting assembly is connected with the pressing plate. The flowmeter body and the pipeline are supported through the supporting assembly, measurement errors caused by vibration or movement are reduced, the flange plate of the flowmeter body and the flange plate of the pipeline are pressed through the pressing assembly, looseness is prevented, and the measurement precision is improved.

The invention provides a multichannel gas ultrasonic flowmeter, which relates to the technical field of flow measurement and comprises a hardware layer and a software layer, the hardware layer comprises a pipeline, a connecting mechanism, a multichannel ultrasonic transducer, a pressure sensor, a temperature sensor, a wiring terminal box and a control box with an LCD display screen; the software layer comprises a data acquisition module, a preprocessing module, a multichannel speed measurement module, a data fusion module, a dynamic parameter compensation module, a flow calculation module, a man-machine interaction module, a communication module and a storage module. Pipeline section flow velocity information is collected through a multichannel ultrasonic transducer array, and a complex flow state is fitted in combination with a weighted fusion algorithm; the flow is dynamically compensated and corrected based on pressure and temperature; reliable operation of the system is guaranteed by means of hardware redundancy and a software verification diagnosis mechanism, the problems that a traditional flowmeter is low in measurement precision and poor in working condition adaptability are solved, and high-precision and stable gas flow measurement is achieved.

The invention discloses a moisture flow measuring method based on vortex street frequency-disturbance wave frequency dual-mode detection, an adopted measuring device comprises an annular electrode pair, a pressure sensor, a temperature sensor and a vortex street flowmeter, and the annular electrode pair is used for obtaining a liquid film thickness sequence; the pressure sensor is used for collecting working condition pressure, the temperature sensor is used for collecting working condition temperature, and the vortex shedding flowmeter is used for collecting vortex shedding signals; the measurement method comprises the following steps: (1) establishing a moisture measurement model; (2) a Newton iteration format with the actual value of the gas phase flow in the moisture as a parameter is obtained; and (3) iteratively solving the gas volume flow.

The invention discloses a gas flow sensor combination device based on temperature and pressure compensation and a flow correction method. The gas flow sensor combination device comprises a flow sensor combination, a pipeline mechanism, a data processing terminal, an environment pressure sensor and an environment temperature sensor. The pipeline mechanism comprises an air inlet pipeline and an air outlet pipeline, and a plurality of branches arranged in parallel are connected between the two pipelines; the flow sensor combination comprises laminar flow sensors arranged on the branches respectively and electromagnetic valves used for controlling the branches to be opened and closed, and the laminar flow sensors comprise laminar flow elements arranged on the corresponding branches. The laminar flow element is provided with a pressure difference sensor device used for measuring the pressure difference of an inlet and an outlet, a tail pressure sensor used for measuring the pressure and the temperature of fluid flowing through the laminar flow element, and a tail temperature sensor. The laminar flow sensor is used for measuring parameters such as temperature, pressure and pressure difference of fluid in real time, the parameters are calculated and corrected to obtain the flow in a standard state, and measured flow data are more scientific and accurate through temperature and pressure compensation.

The utility model discloses a micro-flow measuring device, which comprises a weighing balance; the liquid collecting container is arranged on the weighing balance; the liquid outlet pipe comprises a horizontal liquid outlet section, and a liquid outlet is formed in the end part of the horizontal liquid outlet section; the capillary receiving tube comprises a horizontal tube section and a vertical tube section which are communicated with each other, the horizontal tube section is horizontally aligned with the horizontal liquid outlet section, a liquid receiving opening is formed in the end part of the horizontal tube section, and a liquid discharging opening is formed in the end part of the vertical tube section; a first distance is formed between the end face of the liquid receiving opening and the end face of the liquid outlet, so that liquid discharged from the liquid outlet is sucked into the liquid receiving opening at intervals, and the liquid discharging opening drips the liquid into the liquid collecting container at intervals. According to the utility model, the problem that a liquid column is easily formed between the liquid outlet pipe and the capillary channel or the distance between the liquid outlet pipe and the capillary channel is too large in the prior art due to vertical butt joint of the liquid outlet pipe and the capillary channel is solved.

A flow rate assembly can include a housing having a measurement channel extending along the housing axis and through a portion of the housing between the first and second ends of the housing, an outer cup portion positioned at least partly within the housing, and a transducer positioned within the outer cup portion and sealed from fluid flow past the outer cup portion, the transducer having a width perpendicular to the housing axis and greater than the width of the measurement channel, the transducer configured to generate an ultrasonic signal and to direct the ultrasonic signal through the measurement channel.

The utility model discloses a flow measuring device, which comprises a weighing balance, the liquid collecting container is arranged on the weighing balance; the capillary receiving tube comprises a first tube section and a second tube section which are communicated with each other, the inner diameter of the second tube section is larger than that of the first tube section, a liquid receiving opening is formed in the end of the first tube section, and a liquid discharging opening corresponding to the liquid collecting container is formed in the end of the second tube section; a liquid outlet is formed in the end portion of the liquid outlet pipe, the end face of the liquid outlet corresponds to the end face of the liquid receiving opening, and a first distance is formed between the end face of the liquid outlet and the end face of the liquid receiving opening, so that liquid discharged from the liquid outlet is sucked into the liquid receiving opening at intervals, and the liquid discharging opening drips the liquid into the liquid collecting container at intervals. According to the utility model, the liquid containing capacity is increased by utilizing the second pipe section with the increased inner diameter, the dripping frequency of the liquid from the liquid outlet is reduced, the evaporation capacity of the liquid is reduced, and meanwhile, the evaporation capacity of the liquid in the first pipe section can also be reduced when the inner diameter of the first pipe section is small.

A flow rate assembly can include a housing having a measurement channel extending along the housing axis and through a portion of the housing between the first and second ends of the housing, an outer cup portion positioned at least partly within the housing, and a transducer positioned within the outer cup portion and sealed from fluid flow past the outer cup portion, the transducer having a width perpendicular to the housing axis and greater than the width of the measurement channel, the transducer configured to generate an ultrasonic signal and to direct the ultrasonic signal through the measurement channel.

The invention relates to the technical field of remote water meter abnormity early warning, and discloses a remote water meter abnormity early warning method and system based on historical water volume, and the method comprises the steps: dividing a user water meter into three classes A, B and C according to the installation time of the user water meter, and employing a differentiated abnormity detection strategy. For the A-type users, establishing a water consumption prediction model based on historical consumption data of the A-type users; for the B-type users, finding similar reference water meters from the A-type users by using a K-means clustering algorithm; and for the C-type users, monitoring whether the accumulated water consumption for continuous N days is completely equal or not after the C-type users are installed. After real-time usage data is obtained, usage deviations of various users are calculated respectively, if the deviations exceed a set threshold value, abnormal early warning is triggered, and the early warning level is dynamically adjusted according to the number of abnormal duration days. According to the method, technologies such as machine learning and clustering analysis are comprehensively utilized, a set of comprehensive, flexible and efficient water consumption abnormity early warning system is constructed, and the refinement and intelligence level of urban water supply management can be remarkably improved.

A flow rate assembly can include a housing having a measurement channel extending along the housing axis and through a portion of the housing between the first and second ends of the housing, an outer cup portion positioned at least partly within the housing, and a transducer positioned within the outer cup portion and sealed from fluid flow past the outer cup portion, the transducer having a width perpendicular to the housing axis and greater than the width of the measurement channel, the transducer configured to generate an ultrasonic signal and to direct the ultrasonic signal through the measurement channel.

The utility model discloses a liquid container for micro flow measurement and a flow measurement device, which comprise a liquid collection container, a filler component, a liquid level sensor, a liquid level sensor, a liquid level sensor, a liquid level sensor, a liquid level sensor, a liquid level sensor and a liquid level sensor, and the filler component is arranged in the liquid collection container and made of low-water-absorption materials. An accommodating cavity for accommodating to-be-measured liquid is formed between the lower end of the filler component and the bottom of the liquid collecting container; and a through hole for the capillary receiving tube to pass through is formed in the filler assembly. The containing cavity is in a relatively closed environment, liquid to be measured entering the containing cavity is not prone to being affected by external airflow, the evaporation capacity of the liquid to be measured is reduced, meanwhile, the containing cavity is restrained within a proper range through the filler assembly, and due to the fact that the filler assembly has air permeability, the liquid to be measured is not prone to being affected by external airflow. Therefore, when the to-be-measured liquid flows into the accommodating cavity, the gas in the accommodating cavity can be discharged, so that the to-be-measured liquid can smoothly flow into the accommodating cavity.

A peristaltic pump, and related method, are disclosed that includes a cam shaft, a plunger-cam follower, a tube receiver, a spring, a plunger, a door, and a plunger lift lever. The cam shaft includes a plunger cam. The plunger-cam follower engages with the plunger cam of the cam shaft. The spring provides a bias and the plunger is biased toward the tube receiver by the spring. The plunger is coupled to the plunger-cam follower where expansion of the plunger cam along a radial angle intersecting the plunger-cam follower as the cam shaft rotates actuates the plunger away from the tube receiver. The door lever can be actuated between a first position and a second position. The plunger lift lever is coupled to the door lever to actuate the plunger away from the tube receiver when the door lever is actuated to the second position.

The invention provides a water turbidity detection method and device and electronic equipment. The method comprises the following steps: acquiring the current flow velocity and temperature of a to-be-detected water body through an ultrasonic meter; determining the measurement amplitude of the ultrasonic signal under the flow velocity and the temperature, and calibrating the measurement amplitude to obtain a calibrated amplitude; determining a current amplitude attenuation rate under the flow velocity and the temperature based on the calibration amplitude and a standard amplitude; and determining the water turbidity of the to-be-detected water body based on the relationship between the turbidity and the amplitude attenuation rate and the current amplitude attenuation rate. According to the water quality turbidity detection method and device and the electronic equipment, the existing structure and circuit design of an existing ultrasonic water meter can be utilized, turbidity detection can be achieved without adding an independent optical turbidity detection sensor, and then the water quality turbidity can be detected by monitoring the envelope amplitude change condition of the ultrasonic receiving signal in real time. And the turbidity change of the water quality is monitored.

The invention provides an ultrasonic flowmeter for flow detection, and relates to the field of flow detection.The ultrasonic flowmeter comprises a detection pipeline and a detection host, detection probes are arranged on the two sides of the detection host, two arc-shaped scrapers are arranged on the surface of the detection pipeline, and wiping cloth and two rolling shafts are arranged between the two arc-shaped scrapers; wiping cloth is wound on the surfaces of the two pieces of wiping cloth, a second adjusting box is arranged on one side of the guide plate and the detection probe, a pressing block and a plurality of coupling agent injectors are arranged in the second adjusting box, and a plurality of nozzles with the corresponding number are arranged below the coupling agent injectors through the guide effect of second guide grooves formed in the surface of the second adjusting box. Through automatic cleaning of the ultrasonic probe and automatic adding of the coupling agent, the maintenance time of equipment is prolonged, the maintenance frequency of workers is reduced, and then the safety coefficient of the workers in a dangerous operation area is improved.

The invention relates to the technical field of flow meters, and discloses an integrated high-precision elbow flow meter which comprises a flow meter body, a filter pipe is installed at the inlet end of the flow meter body, a filter cylinder is installed in the filter pipe, one end of the filter cylinder is provided with an opening and faces water, and impellers which are coaxially arranged in a centering mode are installed in the filter cylinder. The filter pipe is installed at the inlet end of the flowmeter body, the filter barrel is arranged in the filter pipe, impurities in industrial wastewater can be intercepted, the impeller drives the first brush plate and the second brush plate to rotate, blockages in filter holes are swept, and the situation that the circulation sectional area and the measurement precision are affected due to impurity accumulation is avoided; impurities enter the impurity collector through the annular groove and the material collecting hole, waste water returns to the pipeline through the backflow pipe, circulating filtration and collection of the impurities are achieved, the impurities are discharged out of the flowmeter, the pipeline does not need to be disassembled and assembled, and later impurity cleaning work is facilitated.

A mass flow controller and methods of providing for mass flow control are provided. A mass flow controller includes a control valve configured to control flow of a fluid in a flow path. A first flow sensor detects a first set of fluid flow parameters, and a second flow sensor detects a second set of fluid flow parameters. The first and second flow sensors are of distinct flow measurement types. The mass flow controller further includes a controller configured to determine a set of first mass flow rates based on the first set of fluid flow parameters detected by the first flow sensor and calibrate the second flow sensor based on the determined set of mass flow rates of the first mass flow sensor and the second set of fluid flow parameters.

The invention provides an intelligent gas pipeline differential pressure safety monitoring Internet of Things system and method and a storage medium. The Internet of Things system comprises a gas company management platform and a plurality of other platforms. The method is executed by a gas company management platform and comprises the following steps: acquiring a pressure difference data matrix of a current gas pipe network; based on the pressure difference data matrix, determining an abnormity judgment result of the current gas pipe network; determining anomaly probability distribution based on the differential pressure data matrix in response to the existence of the anomaly; generating an operation instruction set based on the abnormal probability distribution; and based on the differential pressure data matrix, generating a voltage regulation instruction, the voltage regulation instruction being configured to control a voltage regulation device to perform voltage regulation. The method can also be operated after a computer instruction stored in a computer readable storage medium is read. According to the Internet of Things system and method, real-time and accurate monitoring and analysis of the pressure difference of the gas pipeline can be realized, and safe and stable operation of a gas pipeline network is ensured.

The utility model discloses a turbine flow meter, which belongs to the technical field of turbine flow meters and comprises a flow meter body, a flange plate is mounted at the end of the flow meter body, a preamplifier is fixedly connected to the upper end of the flow meter body, a magnetoelectric converter is mounted in the preamplifier, and the magnetoelectric converter is fixedly connected with the flange plate. A front guide piece and a rear guide piece are fixedly connected to the interior of the flow meter body, an impeller is connected between the front guide piece and the rear guide piece through a bearing, a filtering disc is installed in the flow meter body, and the upper end and the lower end of the filtering disc are connected with the interior of the flow meter body through auxiliary springs; a center rod is installed in the middle of the filtering disc, and a positioning rod is inserted into the center rod. According to the turbine flowmeter, after the filter screen is blocked, automatic cleaning of the filter screen can be achieved through fluid thrust, and meanwhile when the turbine flowmeter is connected with an external pipeline, the stability of connection between the pipeline and the turbine flowmeter is effectively guaranteed.

The invention relates to the technical field of water meters, and particularly discloses an Internet of Things intelligent water meter which comprises a water collecting box, mounting mechanisms are fixedly mounted at the input end and the output end of the water collecting box, and a filtering mechanism is movably mounted in the water collecting box. When water flow enters the water collecting box through the conical connecting hopper, the water flow is filtered by the filter screen cylinder, impurities are removed, the Internet of Things intelligent water meter is protected, the water flow makes contact with the spiral blade, the spiral blade is spirally twisted, the water flow drives the spiral blade to rotate, and then the rotary disc and the cleaning brush rotate around the filter screen cylinder to clean the outer surface of the filter screen cylinder; water flow enters the interior after being filtered and screened by the filter screen cylinder, then flows to the detection end of the water meter through the water passing holes of the rotary disc and is discharged from the output end of the water collecting box, the cylindrical filter screen is large in filtering area, the water flow can drive self-cleaning, the influence on the flow speed in the water collecting box is reduced, efficient filtering is kept, and the influence on the water flow speed is reduced.

Provide are an IoT system, a method, and a storage medium for smart gas pipeline pressure difference safety monitoring. A gas company management platform of the IoT system is configured to: obtain a pressure difference data matrix of a current gas pipeline network from a gas equipment object platform; determine an abnormality judgment result for the current gas pipeline network based on the pressure difference data matrix; in response to determining that the abnormality judgment result indicates an abnormality, determine an abnormality probability distribution of the current gas pipeline network based on the pressure difference data matrix; generate an operation instruction set based on the abnormality probability distribution; generate a pressure adjustment instruction based on the pressure difference data matrix, and send the pressure adjustment instruction to the gas equipment object platform to control a pressure adjustment device to regulate an abnormal gas pipeline in the current gas pipeline network.

The invention belongs to the technical field of flow metering, and discloses a flow metering method, system and device based on the Internet of Things, and the method comprises the steps of monitoring data collection and transmission, monitoring data preprocessing, initial volume flow analysis, mass flow analysis and flow monitoring data display. The system comprises a monitoring data collection and transmission module, a monitoring data preprocessing module, an initial volume flow analysis module, a mass flow analysis module and a flow monitoring data display module. Multi-dimensional data acquisition is carried out by comprehensively using ultrasonic waves and a differential pressure type flow sensor, working condition identification is carried out by combining data acquisition nodes of the internet of things and a convolutional neural network, the volume flow is calculated according to a fusion weight matrix, and the mass flow is converted according to a mass flow calculation model. The mass flow rate of the natural gas can be measured at high precision under different working conditions, and the problem that the measurement precision is limited in a full working condition range in a traditional mode is solved.

Methods for Ultrasonic Flow Metering, Ultrasonic Flow Meter Calibration, and Ultrasonic Fluid Characterization. Focusing on the governing principles and equations of flow measurement for ultrasonic flow meters, using temperature referenced differential and absolute time of flight measurements to characterize fluid motion. As well as, experimental solutions to meter calibration constants, thermal expansion, concentration change in fluid validation / correction using a ratiometric approach comparing expected and measured zero flow measurements, change of fluid in process validation / correction using acoustic properties of a specific fluid, and zero flow correlations / validation based on time of flight and temperature, referenced to historically captured data and the acoustic properties of the fluid in the process.

The invention relates to the technical field of flow detection, and discloses a device and method for detecting the flow of gas-liquid two-phase flow in a microtubule, the device comprises a separation mechanism, the separation mechanism further comprises a main body, the inner wall of the main body is fixedly connected with an annular plate, the left side of the main body is fixedly connected with an inlet pipe, and the right side of the main body is fixedly connected with a liquid outlet pipe; after the fluid flows into the top of the spiral plate, the fluid flows downwards along the spiral plate, the fluid is subjected to the action of centrifugal force and centripetal force in the flowing process, so that the flow speed is changed, the fluid is subjected to the action of the centrifugal force, liquid with high density is thrown to the outer side, and gas with low density is concentrated in a central area; the liquid in the fluid continuously flows downwards and flows into the liquid outlet pipe through the through groove under the influence of gravity, so that the liquid in the fluid can be separated and measured respectively after being separated, mutual interference between gas-phase flow and liquid-phase flow can be avoided, and the accuracy of a measurement result is improved.

A flowmeter sensor can stably measure in a wide temperature range including one over 100° C. The flowmeter sensor includes an ultrasonic transducer, a pipe, and an acoustic prism. The acoustic prism has a bottom surface that is arranged in contact with the outer peripheral surface of the pipe and a front-side inclination surface that supports the ultrasonic transducer. The acoustic prism propagates ultrasonic waves from the ultrasonic transducer toward the fluid within the pipe. The pipe is made of a first heat-resistant resin having heat resistance in a temperature range of 90° C. to 200° C. and negative thermoacoustic characteristics in which the ultrasonic transmittance decreases as the temperature rises in such a temperature range. The acoustic prism is made of a second heat-resistant resin having heat resistance in the temperature range and positive thermoacoustic characteristics in which the ultrasonic transmittance increases as the temperature rises in such a temperature range.