845results about "Volume indication and recording devices" patented technology

The invention relates to the field of intelligent flow measurement, and discloses a fluid flow prediction method for a low-power-consumption flowmeter, which is used for solving the problems of fluctuation and error of flow data caused by various factors such as change of fluid flow state and influence of impurities in a pipe section when the flowmeter is used. A flow prediction algorithm is used for enabling the flow meter to predict and correct the fluid flow within the interval time of intermittent power supply excitation metering of the battery, so that the use scheduling of the battery of the flow meter is reduced, and the service life of the flow meter is prolonged; a long-short-term memory machine learning algorithm is used for performing fitting calculation on historical flow data, early warning is performed on abnormal flow possibly generated in future time in combination with the historical data, the accuracy of the flow meter is effectively improved, and waste of resources is reduced.

The invention relates to the technical field of water supply management, in particular to a self-generating ultrasonic remote water meter and a water supply management system, and aims to enhance automatic water supply adjustment and water energy optimization adjustment of the self-generating ultrasonic remote water meter water supply management system through an intelligent analysis process of user water consumption information. Comprising the steps that a remote transmission module sends a real-time user water volume data signal to a remote water supply control center through a wireless communication technology; the water supply module performs multi-dimensional data analysis according to the real-time user water volume data signal and judges the user water consumption change condition, and the remote water supply control center starts an automatic water supply strategy; the monitoring module obtains user water consumption conditions in a preset time period under the control of the automatic water supply strategy for monitoring and analysis, and user water consumption level information in the preset time period is obtained; and the judgment module judges whether water consumption of the user is abnormal or not according to the water consumption grade information of the user, generates a second early warning signal and pauses water supply treatment.

The invention belongs to the technical field of flow meters, and particularly relates to a self-generating power supply magnetic suspension gas turbine flow meter which comprises a machine core assembly, a machine core shell is installed on the outer side of the machine core assembly, magnetic suspension bearings are jointly installed between the two ends of the inner side of a machine base and the corresponding positions of the outer side of a main shaft, and a storage battery is installed in the middle of the lower surface of a connecting block. The gas turbine flow meter has the beneficial effects that self power generation and storage of the gas turbine flow meter are facilitated, the gas turbine flow meter can be prevented from stopping working in case of sudden power failure, the gas turbine flow meter can be prevented from being damaged, and the gas turbine flow meter can be prevented from being damaged. The gas turbine flowmeter can be used continuously, so that the flow of gas passing through the gas turbine flowmeter can be monitored continuously.

The invention provides a non-contact river flow measurement method and system based on a target tracking algorithm, and relates to the technical field of hydrological survey, and the method comprises the steps: when a monitoring period is triggered, recognizing and determining a plurality of target floaters in a target river region through a plurality of river cameras, and carrying out the video shooting of the plurality of target floaters, a plurality of camera videos are obtained; transmitting the plurality of camera videos to a processor, and tracking and sorting the plurality of camera videos to obtain a plurality of target floating object videos; analyzing the flow velocity of each target floater according to the plurality of target floater videos to obtain a plurality of floater flow velocities, and obtaining the current river flow of the target river region; the early-stage river flow of the last monitoring period is obtained, the river flow increment is obtained through comparison, and when the river flow increment is larger than an increment threshold value, flow abnormity early warning is conducted. The technical problem that in the prior art, a contact type measurement method is inaccurate and unreliable in river flow measurement is solved.

A flow sensor for sensing fluid flow. The flow sensor includes an exterior, interior, a circuit board, and first and second ports. The first and second ports permit fluid to flow into and out of the interior. A Hall Effect Sensor in the interior detects the number of revolutions of an impeller. An electric coupler interfaces with the flow sensor and a transmitter for communication of the revolutions of the impeller to a controller. The controller determines the rate of fluid flow in a conduit. The controller issues a command signal to a component of a hydraulic system to alter the rate of fluid flow in the conduit.

The invention discloses a flood flow early warning method, a controller, a storage medium and a program product, and relates to the field of hydrological monitoring and disaster early warning. By adopting the technical scheme, after an emergency flow meter emits a first frequency modulation continuous wave to the water surface at the current position, the controller receives a first signal reflected by the water surface and analyzes the spectrum characteristic of the first signal; therefore, the stratified flow phenomenon of the water body is effectively identified. After the emergency flow velocity meter emits a second frequency modulation continuous wave to the water surface at the current position, the controller receives a second signal reflected by the water surface, determines the surface flow velocity and the subsurface flow velocity through the first signal, the second signal and a preset flow velocity calculation formula, and calculates the comprehensive flow velocity by combining the water flow layering coefficient; and finally, flow calculation is performed according to the section coefficient and the actually measured water level. According to the multi-level flow velocity measurement and analysis method, the accuracy of flood flow calculation is remarkably improved, when the instantaneous flow exceeds the preset flow threshold value, early warning is given out in time, and important support is provided for flood prevention and flood fighting.

The invention provides a device and method for measuring the flow velocity and flow of gas in a pipeline, and particularly relates to the technical field of measuring instruments, and the device comprises a flow field optimization assembly, a flow velocity sensing assembly and a signal processing assembly. The flow field optimization assembly comprises a plurality of air duct partition plates and straight pipe sections, and the gas conveying pipeline is divided into a plurality of independent divided air ducts; the flow velocity sensing assembly comprises a rectification assembly and a pressure sensing assembly, the rectification assembly comprises a pore plate and / or a grid, and the pressure sensing assembly comprises a plurality of uniformly distributed pressure sensing elements; the signal processing assembly comprises a differential pressure sensing transmitter, a static pressure sensing transmitter, a temperature sensing transmitter, an atmospheric pressure sensing transmitter and a data processing module. The pressure sensing element detects differential pressure signals, the differential pressure sensing transmitter converts the signals, the data processing module calculates the average flow velocity and flow of gas based on the signals and measurement data, and the measurement precision and accuracy are improved.

A flow sensor sub-assembly for sensing flow of a fluidic medicament is disclosed. The flow sensor sub-assembly includes a first spring contact and a second spring contact. The spring contacts are secured to a base that has a circuit for conducting an electrical signal to and from the spring contacts to a microprocessor. The first spring contact is in electrical communication with a first piezo element and the second spring contact is in electrical communication with a second piezo element. The first spring contact has a first contact force against the first piezo element and the second spring contact has a second contact force against the second piezo element, and the first and second contact forces are equivalent. A circuit board for interfacing to a flow sensor having a plurality of piezo elements for transmitting a flow signal indicative of flow of fluidic medicament is also disclosed.

The utility model relates to the technical field of meters, in particular to a split type flow monitoring instrument which comprises a shell, a top cover, a first split type connecting pipe, a second split type connecting pipe, a pressure sensor, a displayer, a differential pressure balance valve, a Pitot tube probe and a connecting assembly, and the connecting assembly is arranged between the second split type connecting pipe and the Pitot tube probe. The Pitot tube probe is inserted into a measured pipeline, at the moment, the Pitot tube probe transmits a signal to the displayer and displays the signal on the displayer, the differential pressure balance valve is opened, liquid flows to the first split connecting pipe through the second split connecting pipe, and the pressure sensor transmits a numerical value to the displayer in real time and displays the numerical value on the displayer. The top cover can facilitate follow-up checking or cleaning, and the Pitot tube probe and the differential pressure balance valve are installed in a sectional mode, so that the workload of workers is reduced, the detection quality is improved, and follow-up maintenance and replacement are facilitated.

The invention provides an electromagnetic water meter and a control system thereof, and relates to the technical field of electromagnetic water meters, the electromagnetic water meter comprises an MCU controller, and a flow information processing module, an LCD liquid crystal display module, an electronic ink screen module and a near-end communication module which are respectively connected with the MCU controller; the flow information processing module is connected with at least one electromagnetic water meter sensor; the electromagnetic water meter sensor generates a corresponding electromotive force signal under the action of real-time flow; the flow information processing module is used for converting the electromotive force signal into corresponding flow information; the MCU controller is used for sending the flow information to the near-end communication module and sending the flow information to the LCD module and / or the electronic ink screen module for displaying; by arranging various devices capable of obtaining the flow information, the technical problem that in the prior art, reading cannot be conducted in time when an electromagnetic water meter is abnormal is solved.

The utility model relates to the technical field of flow meters, in particular to a pointer adjusting type dry contact metal tube float flow meter alarm switch which comprises an alarm pointer, a shell is sleeved outside the alarm pointer, one end of the alarm pointer is connected with a magnetic switch, a supporting seat is arranged inside the shell, and a magnet is arranged at one end of the supporting seat. When the flow of the flow meter reaches a preset threshold value, the magnetic substance in the metal pipe triggers the ferromagnetic material in the reed pipe, so that the circuit in the reed pipe is closed, the magnetic switch and the alarm pointer are triggered at the moment, and then the flow meter outputs an alarm signal. A dry contact signal of the reed switch is controlled through the magnet, the reed switch can be directly connected into an electrical loop in series, an external power supply is not needed, an isolation gate or a relay is not needed, electric sparks are not generated when the reed switch is used as the dry contact signal during triggering, and therefore contact abrasion and electric arcs are not caused.

The invention discloses a water cup which comprises the components of a cup body which comprises a cup opening and is internally provided with an accommodating cavity; the cup cover covers the cup opening; the suction nozzle is arranged on the cup cover and is communicated with the accommodating cavity; the water quantity detection device is used for measuring flow data of the liquid flowing out of the containing cavity and / or liquid level data of the liquid in the containing cavity; the display device is arranged on the cup cover and / or the cup body; and the display device is used for displaying the flow data measured by the water volume detection device and / or the drinking water information determined based on the flow data. According to the water cup, the combination of the water volume detection device and the display device is adopted, the water volume detection device can detect data information related to the water volume in the water cup and display the data information in the display device, and therefore a user can check the data information through the display device at any time, and real-time monitoring and management of the individual water drinking volume are achieved.

A Coriolis mass flow meter comprises a transformer circuit configured to receive and analyze vibration measurement signals to determine mass flow measurement values which represent a mass flow of a fluid and to determine characteristic number values for at least one sensor characteristic number, which characterizes and / or is based on at least one harmonic component of at least one of the vibration measurement signals, wherein each vibration measurement signal includes a useful component, having a frequency corresponding to a drive frequency with an amplitude based on a respective magnetic flux through a respective vibration sensor of the flow meter, and a harmonic component having a frequency corresponding to a whole-number multiple of the drive frequency and an amplitude based on the respective magnetic flux.

The invention provides an elliptical gear flow meter, belongs to the technical field of flow meters, and solves the technical problem that an existing signal receiver cannot bear the temperature of 100 DEG C or above, so that the flow meter cannot be applied to a scene of 100 DEG C or above. An elliptical gear flowmeter comprises a flow base, a shell arranged on the flow base and two communicated gear cavities formed in the shell, a pair of flow channels are formed in the flow base, one ends of the two flow channels are communicated with the corresponding gear cavities, a pair of elliptical gears are rotationally connected to the flow base, and the elliptical gears are arranged in the elliptical gears. The two elliptical gears are located in the corresponding gear cavities and meshed with each other, a pair of first magnets is arranged on the top face of one elliptical gear, an upper end cover is arranged on the shell, and a shifting wheel is rotationally connected to the upper end cover. The flow meter has the advantages that heat cannot be concentrated and accumulated, heat dissipation is fast, the heat-resistant temperature of the flow meter is increased, the service life is prolonged, and the flow meter is suitable for various high-temperature scenes.

The present invention discloses a dual-circulation intelligent water meter with dual meter heads and dual meter cores, which relates to the technical field of water meters, including a water meter body, and also including an inlet pipe and a return pipe respectively arranged on the water meter body, and two meter cores arranged in the water meter body, wherein the two meter cores are respectively an inlet meter core arranged in the inlet pipe and a return water meter core arranged in the return pipe. The dual-circulation intelligent water meter with dual meter heads of the present invention forms dual metering units and dual-pipeline differential metering by arranging two meter cores in the water meter body, which not only meets the need for accurate metering, but also solves the need for flowing living water for direct drinking water. At the same time, by setting the installation components, the efficiency of the meter core installation is improved and it is ensured that the force of each installation point of the meter core is uniform during the installation process.

The utility model relates to an integrated radar flow meter which comprises a shell, a radar flow meter, a radar water level gauge, a gyroscope, an angle adjusting unit and an extending part. The radar flow velocity meter and the radar water level gauge are both located in the shell, the gyroscope is fixed to the top of the shell, and the angle adjusting unit comprises a transverse plate, two vertical plates, a motor, a transmission part and a fixed wheel; the extending direction of the transverse plate is parallel to the horizontal plane, one ends of the two vertical plates are connected with the two ends of the transverse plate respectively, the shell is located between the two vertical plates and rotationally connected with the two vertical plates, the motor is fixed to the transverse plate, the input end of the transmission part is in transmission connection with a rotating shaft of the motor, and the output end of the transmission part and a rotating shaft of the fixed wheel are collinear and fixed to the shell. The two ends of the extending part are fixed to the river bank and the transverse plate correspondingly, and the extending direction of the extending part is perpendicular to the extending direction of the transverse plate. The integrated radar flowmeter can control the motor to adjust the levelness according to the detection result of the gyroscope, and has the advantages of being integrated, accurate in adjustment and low in maintenance cost.

The invention discloses an ultrasonic gas meter range expansion system, and belongs to the technical field of ultrasonic gas meters. The system comprises a signal acquisition module, the signal acquisition module is used for acquiring pulse signals on a gas meter, processing the pulse signals at sampling frequency and improving the measurement sensitivity of the pulse signals, and the signal acquisition module sends the acquired pulse signals to a signal processing end; the signal processing end is used for upgrading the pulse signal to obtain a high-precision pulse signal, so that the time difference measurement precision is improved; according to the ultrasonic gas meter, the pulse signal is processed, so that the flow measurement precision in a high-flow-rate mode and a low-flow-rate mode is improved, the measurement range of the ultrasonic gas meter is widened, and the measurement precision in the range from the low flow rate to the high flow rate is guaranteed; and through real-time temperature and pressure compensation, the gas meter can stably work under different environmental conditions, and the measuring range of the ultrasonic gas meter is further widened.

A flowmeter with adjustable reading directions is provided, which includes a flowmeter main body, a casing and a digital display device. The casing is arranged at an outer side of the flowmeter main body; the digital display device is electrically connected with the flowmeter main body so as to read the numerical value of the flowmeter main body. The digital display device is rotatably connected on the casing to adjust the display direction of the numerical value in the digital display device. The digital display device is rotatably connected to the casing, so that the digital display device is equivalent to being indirectly arranged on the flowmeter main body, by rotating the digital display device, the digital display device can align with and face to the working personnel, such that it is convenient for the working personnel to read and record the numerical value.

The invention discloses an anti-freezing, scale-free and countercurrent-free rotary wing type ceramic bearing mechanical water meter, belongs to the technical field of water meters, and aims to solve the problems of abrasion, blockage, countercurrent error, low-temperature freezing and the like of a traditional water meter in long-term operation. Through innovative mechanical design and material application, the metering precision, durability and environmental adaptability are improved; through a self-cleaning mechanism, an anti-freezing design, an anti-backflow device, application of high-performance materials, fluid dynamics optimization, a multi-axial rotor wing and magnetic suspension technology and an environment adaptability design, the rotor wing type water meter is easy to maintain and overhaul and has the advantages of self-cleaning, anti-backflow, high precision and high durability. According to the water meter, through innovative mechanical design and material application, the problems of abrasion, blockage, countercurrent errors, low-temperature freezing and the like of a traditional water meter in long-term operation are solved. The water flow meter is suitable for various water use environments such as residence, business and industry, can provide stable and reliable water flow measurement, and ensures accurate metering and management of water resources.

The invention provides a mixed flow velocity and flow measuring device and method, and particularly relates to the technical field of measuring instruments, and the device comprises a gas mixing assembly, a flow field optimization assembly, a flow velocity sensing assembly and a signal processing assembly. The gas mixing assembly comprises a differential channel mixer and a mixing cavity, and gas premixing is achieved. The flow field optimization assembly comprises a plurality of air duct partition plates and straight pipe sections, and the mixed gas conveying pipeline is divided into a plurality of independent divided air ducts; the flow velocity sensing assembly comprises a rectification assembly and a pressure sensing assembly, the rectification assembly comprises a pore plate and / or a grid, and the pressure sensing assembly comprises a plurality of uniformly distributed pressure sensing elements; the signal processing assembly comprises a differential pressure sensing transmitter, a static pressure sensing transmitter, a temperature sensing transmitter, an atmospheric pressure sensing transmitter and a data processing module. The pressure sensing element detects differential pressure signals, the differential pressure sensing transmitter converts the signals, the data processing module calculates the average flow velocity and flow of the mixed gas based on the signals and measurement data, and the measurement precision and accuracy are improved.

A system and method for measuring or for estimating flow or flowrate of a fluid, including wastewater inflow or infiltration, using non-contact depth-based flow measurement, including: receiving a depth sensor signal from an ultrasonic depth sensor positionable over a manhole channel above an outgoing pipe's crown; receiving a temperature signal from a temperature sensor positionable within the manhole channel; receiving one or more data input signals; calculating a distance to a surface of the fluid based on the received depth sensor signal; and determining a depth of the fluid in the manhole channel based on the calculated distance. Flow velocity may be calculated using Manning's equation or the Hazen-Williams equation, with flow rate subsequently determined using the continuity equation. Alternatively, flow velocity and flow rate may be estimated using a machine learning model trained on simulated or historical time-series data of flow rate, flow velocity, and flow depth, along with pipe attributes, to generate real-time flow estimates based on current and prior flow depth measurements.

The invention discloses metering equipment and a method for metering gas flow by using an ultrasonic sound velocity difference principle, and the method comprises the following steps: rectifying gas flow in a pipeline by using a rectifier assembly to stabilize a flow field, and then measuring the ultrasonic sound velocity difference of forward and reverse propagation of the gas flow by using an ultrasonic sensor in a sensing assembly; the detected pulse signals are transmitted to the intelligent flow totalizer assembly for operation, and the actual flow velocity and flow of the gas are obtained; a pressure sensor and a temperature sensor in the sensing assembly respectively collect a pressure signal and a temperature signal of gas in the pipeline, and synchronously transmit the collected pressure signal and temperature signal to the intelligent flow totalizer assembly; and after receiving the pressure and temperature signals, the intelligent flow totalizer assembly performs temperature and pressure compensation operation in combination with actual flow velocity and flow data of the gas to finally obtain the flow velocity and flow of the gas under the standard condition. The problems of low measurement precision and large pressure loss in the traditional technology are solved.

The invention relates to a display device (1) comprising: - a housing (2) with a housing opening (3), - a transparent display window (4) which is inserted into the housing opening (3), - a display module (5), - a window holder (6) of the display window (4), which is connected to the housing (2), wherein the window holder (6) has a partially planar base body (8), wherein the display module (5) is mechanically connected to the base body (8), wherein the window holder (6) comprises at least one resilient spacer (7), wherein the at least one spacer (7) and the base body (8) are monolithic, wherein the window holder (6) has a window holder opening (9), wherein the display module (5) extends through the window holder opening (9).

Disclosed herein are systems and methods for delivering nitric oxide gas. According to an embodiment, a. nitric oxide gas delivery' system can include: a nitric oxide (NO) source providing NO gas; a plurality of port lights surrounding a plurality of corresponding gas ports, wherein each of the port lights are configured to display a color; and an electronic control circuit, wherein the electronic control circuit is configured to enable the plurality of port lights to display the color based on a flow of the NO gas being delivered through the corresponding gas ports.

The invention relates to the technical field of data storage, in particular to an ultrasonic water meter data storage method and an ultrasonic water meter. The method comprises the following steps: receiving current frame data; when the current frame data is the static configuration data, the current frame data is stored in an EEPROM chip and a Flash memory of the ultrasonic water meter; when the current frame data is the dynamic accumulated data, respectively determining storage periods of the current frame data in the EEPROM chip and the Flash memory based on the numerical value of the current frame data; and based on the storage periods respectively determined by the EEPROM chip and the Flash memory, storing the current frame data into the EEPROM chip and the Flash memory by adopting a multi-section circulating storage mode. The reliability of data storage of the ultrasonic water meter can be improved.

The invention relates to the technical field of Internet of Things and smart home, in particular to an intelligent water meter and water leakage detection system, which comprises a water consumption monitoring module, an abnormal water consumption reminding module and a water leakage detection module, and is characterized in that the water consumption monitoring module is used for monitoring water consumption data of each water consumption mode in daily use in real time; the data acquisition module is used for regularly acquiring total water consumption data of each water consumption mode on the day; the calculation module is used for calculating a daily water health coefficient; the display module is used for displaying the water consumption health coefficient of the day and the total water consumption data of each water consumption mode of the day; the abnormal water consumption reminding module is used for acquiring abnormal parameters; the water leakage detection module is used for detecting water flow parameters in a water pipe at regular time, calculating a water consumption abnormal coefficient and generating a reminding signal; calculating a water leakage risk coefficient; and the water leakage early warning system is used for generating a water leakage early warning signal and sending out early warning, so that the efficiency of daily water consumption monitoring and the real-time performance of early warning during abnormal water consumption and water leakage are improved.

The invention provides a drip metering method for an ultrasonic water meter, which improves the metering precision of the water meter by accurately measuring tiny changes in water flow, particularly drip events, and comprises the following steps: firstly, a sensor of the ultrasonic water meter acquires water flow signal data in real time, including flow information, flow fluctuation and water flow state, and transmits the data to a signal processing module; through noise removal, signal gain adjustment, waveform amplitude detection and other processing, a system compares the data with a set threshold value, identifies a water dripping event, calculates a flow fluctuation difference value and judges the occurrence of a water dripping behavior, and finally, the system records detailed information of the event and stores the detailed information in a memory for subsequent query. Through the precise signal processing and water dripping event recognition method, the recognition precision of the low-flow water dripping event is effectively improved, missing report and false report are avoided, meanwhile, recording of detailed information and efficient data storage are supported, data integrity and accuracy are ensured, and the intelligent level and practicability of the water meter are improved.

The present invention discloses an underwater flowmeter with a recyclable electronic bin, comprising a flowmeter body for fluid measurement and an electronic bin module for data acquisition and transmission, the two being independently arranged, the flowmeter body being provided with a multiphase flow metering device, a temperature measuring device and a pressure measuring device, and a line collection bin module, the electronic bin module comprising a recyclable electronic bin, the measurement signal output ends of each measuring device being respectively connected to the line collection bin module via cables, the line collection bin module being connected to the recyclable electronic bin via a measurement signal electric flying wire, so as to transmit the measurement signal to the recyclable electronic bin. The beneficial effects of the present invention: the flowmeter body and the recyclable electronic bin are independent of each other, the measurement signal output cables of each measuring device on the flowmeter body are uniformly connected to the line collection bin, and connected to the recyclable electronic bin via a measurement signal electric flying wire, so as to facilitate signal conduction and the recovery of the recyclable electronic bin.

The invention relates to the technical field of safe transmission, in particular to a gas meter information safe transmission method and an intelligent gas meter. The method comprises the following steps: S1, calculating a noise value and an observation value of a Hall sensor on actual gas flow; according to the method, the deviation of the observation values of the two sensors is calculated through the observation value of the Hall sensor for the actual gas flow, then whether the Hall sensor is abnormal or not is detected, and when the Hall sensor is abnormal, the gas flow is predicted by combining historical actual gas flow data, a weight coefficient and a noise value; the gas flow deviation value is calculated according to the predicted gas flow value and the actual gas flow data, whether abnormities of sudden change of the gas flow exist or not is detected, and the influence of sensor faults on gas flow detection can be reduced by detecting the abnormities of the sensor in time and predicting the gas flow, so that the gas flow detection efficiency is improved. And continuity and stability of gas flow data are ensured.