578results about "Volume indication and recording devices" patented technology

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 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 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 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.

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 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.

The invention relates to the technical field of semiconductor manufacturing, in particular to an automatic wafer picking and feedback control system based on suction nozzle flow monitoring. Comprising a suction nozzle flow monitoring module, a data acquisition module, a data processing module, a feedback control module, a communication module, an alarm module, a power management module, a flow sensor precision analysis module and a flow anomaly detection module. Through a real-time flow monitoring and feedback control mechanism, the problem that picking failure in the semiconductor wafer carrying and loading process cannot be detected in time is solved, the safety and the operation efficiency of equipment are remarkably improved, and by combining low-energy-consumption and modular design, the system keeps operation stability and reduces energy consumption and production cost, and meanwhile, the system reliability is improved. And the requirement of efficient and automatic production is met. The system provides reliable guarantee for intelligent and automatic development of modern semiconductor manufacturing, and has wide application prospect and market value.

The invention relates to a double-core self-adaptive open channel flow measuring device based on a machine deep learning algorithm, which comprises a first base and a second base mounted on two sides of an open channel, a first lifting seat is slidably mounted on the first base, a mounting seat is mounted on the first lifting seat, and a second lifting seat is mounted on the mounting seat. An ultrasonic sensor, a limiting switch, a sediment content monitoring sensor, a liquid level sensor, a salinity sensor and a temperature sensor are mounted on the mounting seat; multi-layer water flow velocity measurement is carried out through a limit switch and a sediment content monitoring sensor, the sediment deposition depth is measured at the same time, measurement is carried out through the sediment content monitoring sensor, a liquid level sensor, a salinity sensor and a temperature sensor, and a second controller is responsible for arrangement of all data. And the liquid level, the average instantaneous flow velocity, the instantaneous flow rate, the accumulated flow rate, the sediment content, the temperature and the salinity of the channel are calculated through a machine deep learning algorithm according to the measured data.

The utility model relates to the technical field of flow meters, in particular to an anti-backflow metal rotor flow meter which comprises a flow meter body, a conical groove is formed in the flow meter body, the inner surface of the conical groove is fixedly connected with a set of limiting frames, the opposite ends of the set of limiting frames are fixedly connected with a guide rod, and the outer surface of the guide rod is in sliding connection with a floater. A spring is fixedly connected to the inner surface of the flowmeter body, a baffle is fixedly connected to the upper end of the spring and slidably connected into the conical groove, the floater moves up and down under the action of the flow speed along with continuous rising of the liquid level in the fluid flowing process, and after the floater reaches balance, flow data are transmitted out for observation. The through groove is matched with the floater, when the fluid stops flowing, the spring drives the baffle to reset downwards, and the floater loses the flow speed effect during resetting and slides downwards into the through groove to achieve sealing and blocking, backflow of the fluid is prevented, and the accuracy of detection data is improved.

The invention discloses a double-path circulation intelligent water meter and a using method thereof, and relates to the technical field of double-path circulation intelligent watermeters, the double-path circulation intelligent water meter comprises a water meter body, and further comprises a water inlet pipe and a water return pipe which are arranged on the water meter body, and the two ends of the water inlet pipe are provided with a water inlet pipe inlet and a water inlet pipe outlet respectively; a water return pipe inlet and a water return pipe outlet are formed in the two ends of the water return pipe respectively, the water inlet pipe inlet and the water return pipe outlet are located at the same end of the water meter body, the water inlet pipe outlet and the water return pipe inlet are located at the other end of the water meter body, and a first water flow path is formed among the water inlet pipe inlet, the water meter body and the water inlet pipe outlet; a second water flow path is formed among the water return pipe inlet, the water meter body and the water return pipe outlet, the water meter body forms double-path circulation under the cooperation of the first water flow path and the second water flow path, the double-path circulation intelligent water meter avoids existence of dead water in a pipeline, and water use sanitation and safety of a user are guaranteed.

The invention relates to the technical field of intelligent water meters, in particular to an intelligent water meter data acquisition system which comprises a memory, a processor and a computer program stored in the memory and running on the processor. When the processor executes the computer program, the following steps are realized: acquiring a water consumption data sequence acquired by an intelligent water meter of a target user in a current preset period, and obtaining a water consumption data change degree; performing noise data interference analysis on the water consumption data sequence to obtain a noise interference degree; obtaining the complexity of the water data by combining the noise interference degree and the change degree of the water data, obtaining the battery capacity of the intelligent water meter at the last sampling moment of the current preset period, and obtaining the adaptive sampling frequency of the next preset period according to the complexity of the water data and the battery capacity. The intelligent water meter is used for collecting the water consumption data of the target user in the next preset period, complete recording of water consumption characteristics is ensured, redundant data are reduced, and the cruising ability of the intelligent water meter is improved.

A system (1) for measuring the flow rate of a fluid is provided, consisting of two modules (100, 200), each with its own housing and detachably connectable to one another. A first module (100) comprises a sensor element (120) for detecting a lifting body (210) for generating measurement signals, an electronic unit (130) for processing the measurement signals, an interface (S) for power supply and communication with a higher-level unit, and a memory (140) containing a list of measurement modes. A second module (200) comprises a measuring section in a measuring tube (220) and the lifting body (210) movably arranged therein. The measuring tube (220) is filled with a fluid that drives the lifting body (210). The first module (100) is configured to uniquely identify the second module (200) in order to select a measurement mode from the list of measurement modes that is suitable for the second module (200). to select.

The invention provides a helical vane type water meter, and belongs to the technical field of water meters. The partition plate is arranged in the water inlet cavity of the flow channel of the shell and located on the side far away from the water inlet, water flow entering the water inlet cavity can be blocked at the far end, the turbulent flow influence caused by direct impact of the water flow is avoided, the monitoring precision is improved, and meanwhile, the water flow is prevented from entering the water inlet cavity. The impeller assembly is rotationally installed in the fluid director which is formed by directly connecting and combining the upper fluid guiding part and the lower fluid guiding part, so that the structure for supporting the impeller assembly is simpler, the number of structures needing to be matched with each other is small, the problem that the two ends of a rotating shaft of an integrated impeller are not coaxial due to machining and assembling precision is solved, structural errors are reduced, and the machining efficiency is improved. Besides, one end of the rotating shaft of the integrated impeller extends out of the fluid director and then is provided with a magnet, the magnet is isolated from water flow, the problem that the magnet is interfered by impurities such as rust existing in the water flow is avoided, the monitoring precision of the water meter is further improved, and the service life is prolonged.

The utility model discloses a capillary tube flow detection device which comprises a gas source connector, a pressure reducing valve, a thermal type gas mass flow meter and a capillary tube connector which are sequentially connected to the outlet end of the gas source connector through a gas conveying pipe in the flowing direction of gas flow, and a controller. The controller is electrically connected with the thermal gas mass flow meter; compared with the prior art, the thermal gas mass flow meter is adopted to detect and collect flow data, on one hand, the thermal gas mass flow meter is small in size, the size of the whole detection device can be reduced, movement of equipment is facilitated, and detection convenience is improved; on the other hand, the test data of the thermal gas mass flow meter is not influenced by the environment temperature and pressure, the consistency of the data can be well kept, and therefore the precision and reliability of data detection are improved.

The utility model relates to the technical field of measuring instruments, in particular to a high-precision rotary wing type water meter which comprises a shell and an impeller rotationally arranged in the shell, the shell comprises a hollow mounting cavity and a water inlet pipe and a water outlet pipe which are located at the two ends of the mounting cavity respectively, and an impeller box provided with a plurality of through holes in the circumferential direction is arranged in the mounting cavity; the impeller is installed in the impeller box, a gear set is connected to the installation cavity, the gear set is in transmission connection with a counter used for counting, a check block capable of sealing the water inlet pipe is arranged at the position, close to the water inlet pipe, in the installation cavity in a sliding mode, the check block is connected with a compression spring, and the impeller comprises a middle shaft and a plurality of rotating blades arranged on the side wall of the middle shaft at intervals in the circumferential direction. The middle shaft is slidably sleeved with a locking assembly capable of locking rotation of the impeller, the locking assembly is in transmission connection with the check block, when no water flow exists in the water inlet pipe, the check block seals the water inlet pipe, and the locking assembly limits rotation of the impeller. The water meter impeller can be locked when no water flow exists, and the situation that the impeller rotates under the inertia effect, and counting errors are generated is avoided.

The present application discloses an electronic digital display component of a water meter, a water meter head and a water meter, and relates to the technical field of water meter manufacturing, including a PCB board, including a pin surface and a welding surface; a cover plate, abuttingly arranged on one side of the pin surface of the PCB board; a fixing frame, abuttingly arranged on one side of the welding surface of the PCB board, and a glue injection cavity is formed between the fixing frame and the welding surface; a battery compartment is formed on the side of the fixing frame away from the PCB board, and the fixing frame forms a connecting port connecting the battery compartment and the glue injection cavity; a battery component is arranged in the battery compartment; a fixing member, through which the cover plate, the PCB board and the fixing frame are fixedly connected; a sealing member, arranged on the fixing frame, the sealing member abuts and surrounds the welding surface; a fastening assembly, through which the cover plate, the PCB board and the fixing frame are fastened and connected. The present application can solve the problem of moisture by glue injection while reducing the phenomenon of flowery screen or black screen.

According to the differential pressure type flow meter, direct reading of flow is achieved through the arrangement of the multi-parameter transmitter, an original calculating device is replaced, the site space is saved, and the wiring workload is reduced. The differential pressure flowmeter comprises a throttling device, a multi-parameter transmitter, a temperature detection device and a valve group device, wherein the valve group device is communicated between the multi-parameter transmitter and the throttling device; the throttling device is connected to a to-be-measured pipeline and forms a positive pressure side and a negative pressure side, the multi-parameter transmitter is provided with a positive pressure measuring chamber and a negative pressure measuring chamber, the positive pressure measuring chamber is communicated with the positive pressure side, the negative pressure measuring chamber is communicated with the negative pressure side, and the temperature detection device is used for detecting the temperature of fluid in the to-be-measured pipeline; the multi-parameter transmitter is also integrated with a calculation module, and the temperature detection device is in signal connection with the calculation module. The multi-parameter transmitter can detect the pressure difference and the pressure value, and achieves the calculation function at the same time, so that a traditional external calculation device is omitted, the on-site layout space is saved, and the workload of wiring is reduced.

The utility model discloses a hot water meter based on a Bluetooth module, which relates to the technical field of hot water meters and comprises a detection cylinder, a meter body is arranged at the top of the detection cylinder, detachable end plates are arranged at the two ends of the detection cylinder, an external channel is fixedly arranged at the top end in the detection cylinder, an extension cylinder is fixedly arranged on one side of the external channel, and a Bluetooth module is arranged in the extension cylinder. A blade shaft is arranged in the extending cylinder, and a plurality of blades are fixedly arranged at one end of the blade shaft. The blades are driven to rotate through flowing of hot water, the flame-retardant guide rod synchronously rotates along with rotation of the blades, the rotating speed of the flame-retardant guide rod is detected through the rotating speed sensor, and therefore the flow of the hot water is judged according to the rotating speed; therefore, the rotating speed sensor is less affected by the heat of the hot water in the working process, the rotating speed sensor is prevented from being damaged due to long-time contact with the high-temperature hot water, and the protection effect on electronic components is greatly improved.