1244 results about "Gas meter" patented technology

The invention discloses an Internet of Things intelligent gas meter leakage detection and early warning system and method, and relates to the technical field of gas leakage detection, and the method comprises the following steps: S1, collecting data through multiple sensors; s2, identifying an equipment operation state based on the data set and outputting a state confidence coefficient; s3, a stable monitoring window period is judged, a corresponding strategy is selected to compensate pressure data, and reliability is marked; s4, dynamically generating a detection threshold in combination with the historical mode, the real-time parameters and the data reliability; s5, dynamically adjusting a risk assessment weight according to the confidence coefficient and the reliability, calculating a risk score and determining an early warning level; s6, safety operation is executed according to grades; and S7, updating the model by using process data to realize self-optimization. According to the invention, by deploying a multi-sensor array and adopting a multi-modal signal fusion algorithm, the system can accurately identify the running state of the gas appliance, provides reliable preposition information for subsequent analysis, and overcomes the defect that data of a traditional single sensor is easily interfered.

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 a microcosmic visualization underground reservoir two-phase flow displacement experiment system and method, and the system comprises a microcosmic seepage chip, and an injection module, a microcosmic holder, a pressure and temperature acquisition control module, a gas metering module and a data and image acquisition module which are connected in sequence; a microscopic seepage chip is clamped in the microscopic clamping device; the injection module comprises an N2 gas cylinder, a hydrogen generator, a piston container, an injection pump and a pressure regulating valve; the pressure and temperature acquisition control module comprises an annular pressure tracking pump, a pressure return unit, a temperature sensor and a heating unit. The pressure return unit comprises a pressure return valve, a pressure return container and a pressure return pump. Compared with the prior art, the seepage condition of the two-phase flow in the model and the residual gas phase distribution condition after the two-phase flow passes through gas drive water, water drive gas, polymer drive and other chemical drive can be visually observed, and the accuracy of experimental data is ensured.

The invention provides a method and device for calculating pipeline leakage flow based on pressure change, and belongs to the technical field of gas leakage detection. The method for calculating the pipeline leakage flow based on the pressure change comprises the following steps that S1, a pressure simulation model is established, a pipeline is simulated according to the pressure simulation model, and pressure change data, changing along with time, in the pipeline is obtained; s2, the leakage opening area value and the total gas volume value corresponding to the gas meter and the pipeline are obtained; and S3, establishing a leakage rate calculation model, and inputting the gas total volume value, the leakage port area value and the pressure change data into the leakage rate calculation model to calculate and obtain a leakage flow rate value. The pressure simulation model simulates the pipeline to obtain the pressure change data, the gas leakage flow can be accurately calculated by comprehensively considering the pressure change, the leakage opening area and the gas volume, the method can be widely applied to household and industrial gas pipelines, gas waste is reduced, and environmental pollution is reduced.

The invention relates to the technical field of safety monitoring, and discloses a linkage monitoring method and system for a gas leakage alarm and a gas meter, and the method comprises the steps: periodically regulating and controlling the temperature of a gas sensor, obtaining monitoring values at different temperatures, calculating a specific value, and recognizing gas leakage and non-leakage gas sources; when leakage is judged, activating a camera to shoot an image of a gas meter counter, synchronously acquiring temperature and pressure data, and uploading the temperature and pressure data to a data processing center; a gas consumption value is extracted based on an image recognition algorithm, environmental interference is corrected in combination with an ideal gas state equation and a dynamic compensation model, and high-precision gas consumption is generated; and by analyzing the time sequence relevance between the corrected consumption and the leakage signal, if an abnormal condition is met, the valve is automatically closed, and an alarm is given. According to the invention, high precision, low false alarm and quick response of gas leakage detection can be realized.

The invention discloses a gas meter power supply abnormity monitoring system and method based on a signal acquisition technology, and relates to the technical field of gas meter power supplies, the system comprises a multi-dimensional sensing module, a dynamic adaptive module, a multi-dimensional fusion analysis module, an intelligent judgment module and a verification execution module; according to the invention, the multi-dimensional fusion analysis module accurately calculates key parameters such as a power supply ripple coefficient and load transient response time in a corresponding mode, the electromagnetic interference intensity is calculated through professional algorithms such as discrete Fourier transform in combination with an environment electric field and a magnetic field sequence, a threshold value is dynamically adjusted based on a working mode, and a comprehensive score is calculated through multi-parameter deviation weighted fusion. The power supply state is deeply and comprehensively evaluated; the intelligent judgment module scientifically divides anomaly levels according to comprehensive scores, quantifies and distinguishes real anomaly and environmental interference by means of an environmental interference contribution degree formula, solves the problem that traditional monitoring cannot accurately recognize power anomaly under complex working conditions, and improves anomaly judgment accuracy.

The invention relates to a novel ultrasonic gas meter plastic pipe section structure and method, and belongs to the technical field of ultrasonic flow measurement. According to the technical scheme, an annular buckle cover is buckled on a first ultrasonic transducer and a second ultrasonic transducer, a clamping ring pressing face (G) is pressed on the top faces (H) of the first ultrasonic transducer and the second ultrasonic transducer, a clamping hook on the outer edge of an end opening of an installation base is matched with a clamping groove hole in the side wall of the annular buckle cover, the first ultrasonic transducer and the second ultrasonic transducer are pressed, and the first ultrasonic transducer and the second ultrasonic transducer are clamped. Meanwhile, a transducer sealing bulge (F) is flattened, the transducer sealing bulge (F) is in close contact with an annular pipeline sealing surface I (E), and a pipeline sealing surface II (Q) and a transducer sealing surface (P) are in contact and extruded to form a pressing structure, so that the sealing performance is ensured. According to the invention, the sealing performance of the runner is ensured, and the measurement precision and the assembly efficiency are improved; the integrated circuit board mounting positions are symmetrically arranged on the two sides of the gas meter measuring pipeline body, an integrated structure is adopted, the mounting mode is greatly simplified, and the assembling efficiency is improved.

The invention relates to the field of intelligent assistance of indoor gas safety inspection, discloses an auxiliary identification method for indoor gas safety inspection, and aims to solve the problems of low efficiency and low quality of gas safety inspection. The method comprises the following steps: establishing a standardized inspection process, and inspecting whether gas pipelines, gas meters, gas appliances and ventilation conditions meet the conditions or not; checking the acquired image, judging whether the image meets the requirement or not, and reserving the image meeting the requirement to obtain a third-step image; step 3, judging whether the image in the step 3 has a shooting element or not, reserving the image with the shooting element as a shooting element image, screening out photos with screens of the gas meter and the gas detector, and identifying the reading of the gas meter and the detection condition of the gas detector by utilizing target detection and OCR technologies; and carrying out abnormal condition identification on the shot element image, and sending the gas serial number of which the abnormal condition is identified to an inspector. The system can assist personnel in safety check, and has remarkable advantages.

The invention discloses an Internet of Things gas meter abnormal data real-time storage and intelligent alarm method and device, and relates to the technical field of gas safety monitoring and intelligent alarm. According to the main technical scheme, real-time state data corresponding to a target gas meter are collected, wherein the real-time state data comprise a real-time flow value, a real-time temperature value and a real-time pressure value; based on the instant state data, whether the target gas meter meets an abnormal alarm condition or not is judged, the abnormal alarm condition is used for representing that at least one of an instant flow value, an instant temperature value and an instant pressure value exceeds respective target threshold values, and the target threshold values are dynamic self-adaptive threshold values for conducting geographical environment-seasonal coupling compensation on the target gas meter; and if yes, storing the instant state data as abnormal data in real time to a nonvolatile memory and uploading the abnormal data to a cloud, and executing corresponding intelligent alarm operation according to the abnormal alarm level. The invention aims to improve the accuracy of abnormal alarm so as to ensure that related abnormal data is instantly stored and uploaded to the cloud.

The invention discloses an anti-turbulence valve and an ultrasonic gas meter adopting the anti-turbulence valve, the anti-turbulence valve comprises a valve body, a bent and extended flow path, a gas inlet and a gas outlet are formed in the valve body, the gas inlet and the gas outlet are respectively communicated with the flow path, and gas entering from the gas inlet is discharged from a gas outlet after being buffered and rectified in the flow path. And a piston is arranged in the flow path and can act under the action of the driving unit to open or close the flow path. The ultrasonic gas meter comprises a shell, and a metering module and an anti-turbulence valve are arranged in the shell. The device is reasonable in structure, good in anti-turbulence rectification effect, and beneficial to improving the measurement precision.

The utility model relates to the technical field of metering instruments, in particular to a nondestructive riveted gas meter shell. A pipeline connector is formed in the shell, a pipeline quick connector is riveted to the pipeline connector, positioning teeth and fixing teeth are arranged at the position, inserted into the shell, of the pipeline quick connector, the positioning teeth are of a vertical structure, and the fixing teeth are of a bent structure. The fixing teeth abut against the inner opening edge of the pipeline connector. According to the utility model, the pipeline quick connector is designed at the pipeline interface of the gas meter, so that the pipeline can be directly sleeved on the pipeline quick connector conveniently and quickly without disassembling the shell. Meanwhile, the design that the positioning teeth and the fixing teeth on the pipeline quick connector are matched with the reinforcing pieces can enhance the strength of a pipeline opening, and damage is prevented from being generated during external force sleeving.

The invention provides a gas meter which is assembled on a gas pipeline and comprises a pressure detection module, a component detection module and a control module. The pressure detection module is used for detecting the pressure in the gas pipeline to obtain a pressure value; the component detection module is used for detecting the gas concentration in the gas pipeline to obtain a concentration characterization value capable of characterizing the gas concentration; the control module is in communication connection with the pressure detection module and the component detection module, and receives a pressure value sent by the pressure detection module and a concentration characterization value sent by the component detection module; the control module is further used for sending an alarm signal, and the alarm signal is generated when the concentration characterization value exceeds a preset range and the pressure value is lower than a preset pressure threshold value. According to the gas meter provided by the invention, the gas leakage condition and the gas exchange condition can be distinguished, so that the preset range of the concentration characterization value can be narrowed, whether air is mixed into the gas pipeline or not can be detected in time, and the gas use safety is improved.

The invention discloses a gas meter metering fault detection method, and relates to the technical field of gas meter metering fault detection. An existing gas meter metering fault detection method is insufficient in sensitivity and lacks real-time monitoring and remote monitoring functions. The problems of insufficient data accuracy, limited fault identification capability, poor user experience caused by lack of intelligent management and the like also exist; by means of the intelligent communication module, a user can easily connect an intelligent mobile phone to obtain gas use data and state information in real time, and real-time monitoring of a voltage sensor, a temperature sensor and a pressure sensor and calculation of flow analysis and correction factors are combined; through the comprehensive monitoring and analysis capability, the safety of the user is guaranteed, the reliability of the system is improved, and more efficient and safer gas use experience is provided for the user.

The invention relates to the technical field of data transmission, and discloses a gas meter information secure transmission method based on response function compensation, which comprises the following steps: collecting multi-source data and network signal quality information of a gas meter; according to a real-time network environment and physical conditions, data transmission parameters are dynamically adjusted through a response function compensation algorithm, when data transmission in a static time slot fails, a dynamic retransmission time slot is automatically allocated for retransmission, a retransmission frequency threshold value is set, and packet loss caused by channel errors or collision is compensated through a retransmission response function; a multi-layer encryption mechanism is adopted to encrypt transmission data, an optimal transmission channel is intelligently selected according to network conditions, adaptive hybrid communication is performed through star flash short-distance communication or Wi-Fi wide-area transmission, and a response compensation mechanism of multi-dimensional environmental parameters is established based on a signal transmission model; transmitting the encrypted data to a monitoring management platform through a secure channel; therefore, safety early warning decision is realized, and dynamic accurate transmission and active safety protection are realized.

The utility model relates to the technical field of instruments and meters, in particular to a gas meter with an alarm function. The leakage-proof gas meter with the alarm function comprises an installation frame, a gas meter body, a displayer and the like. A displayer is arranged on the gas meter body, and a mounting frame is mounted on the side, back on to the displayer, of the gas meter body. The electromagnet is activated, the electromagnet generates magnetic attraction after being electrified, the electromagnet moves upwards along the first guide rod, so that the first contact switch is in contact with the second contact switch to form an access, current flows to the motor through the second electric wire, the motor is started to run, and the motor runs to drive the cam to rotate through the belt. The cam rotates to extrude the first wedge block to move downwards along the second guide rod and compress the first spring, the first wedge block moves to force the extrusion rod to move inwards under stress, the displacement of the extrusion rod triggers the emergency button, and therefore emergency closing of the gas valve is achieved.

The invention relates to the technical field of gas meter supervision, in particular to an NB remote transmission ultrasonic gas meter, a supervision method and system thereof and a storage medium, the method comprises the following steps: calculating gas interference data and gas state data, respectively carrying out feature extraction on the gas interference data and the gas state data to obtain an interference feature set and a state feature set, calculating a correlation coefficient between the gas interference data and the gas state data, and carrying out feature coding and vector splicing on the interference feature set and the state feature set to obtain a target fusion state feature vector; and inputting the target fusion state feature vector of each gas application environment into a preset gas meter safety analysis model set to perform gas meter safety analysis to obtain a gas meter safety analysis result, and performing safety early warning management on the current NB remote transmission ultrasonic gas meter according to the gas meter safety analysis result to generate a safety early warning management strategy. The self-adaptive capacity of the NB remote transmission ultrasonic gas meter to the ultrasonic signals is improved.

The invention relates to a gas meter leakage detection device and a detection method thereof. The detection device comprises a vacuum box, a vacuumizing device, a gas charging device, a helium detection device, a gas infrared thermal imaging device, a control valve, a pressure sensor and a pipeline for connection. The detection method comprises omnibearing detection from large-scale leakage to tiny leakage, and the accuracy of the gas meter under different leakage degrees is ensured. Large-scale leakage is recognized through pre-vacuumizing and pressure maintaining testing, then low-pressure helium and high-pressure helium are used for filling, the actual working environment is simulated to detect medium-scale and small leakage, and therefore the detection result is more comprehensive and reliable. By means of the high permeability characteristic of helium, high-precision detection equipment and an automatic control system are combined, and it is ensured that each step in the detection process reaches extremely high precision. Meanwhile, the gas infrared thermal imaging technology and the image enhancement technology are adopted, the leakage process can be completely recorded, and accurate positioning of leakage points is achieved.

The invention discloses a linkage method for a household combustible gas detector direct power supply camera shooting direct reading diaphragm type gas meter, and relates to the technical field of intelligent gas meters, the linkage method comprises the following specific steps: S100, hardware configuration: a micro camera module, an LED flash lamp device and a wireless communication module are arranged on a base meter of the diaphragm type gas meter, and the micro camera module, the LED flash lamp device and the wireless communication module are arranged on the base meter of the diaphragm type gas meter; according to the linkage method, the household combustible gas detector directly supplies power to the camera direct-reading module, the problems that the camera direct-reading module is high in power consumption and low in meter reading frequency are effectively solved, meter reading data are not updated in time due to the fact that a traditional camera direct-reading membrane type gas meter can only achieve low-frequency meter reading due to power consumption limitation, and the meter reading efficiency is greatly improved after the linkage method is adopted. The camera shooting direct-reading module can continuously and stably work, the platform end can freely select any time and frequency for meter reading, the timeliness and accuracy of meter reading data are greatly improved, and a more convenient and reliable gas use monitoring means is provided for users and management departments.

The present invention discloses a method and system for optimizing metering data of an ultrasonic gas meter, relates to the technical field of ultrasonic metering, and solves the problem in the prior art that the sensitivity analysis does not cover the factor of tiny flow leakage, resulting in deviation in determining the compensation factor; the present invention obtains a gas meter distribution map from a database, and installs an ultrasonic gas meter according to the distribution map; determines whether the ultrasonic gas meter is installed in the forward direction; determines whether the ultrasonic gas meter passes the anti-dismantling detection; determines whether there is a tiny flow leakage in the gas meter; calculates an error value through the recorded value in the gas meter and the actual gas flow; corrects the gas meter according to the error value; determines whether the actual gas usage after the error correction meets the safety gas usage standard; if yes, completes the data optimization of the gas meter; if not, sends a reminder signal; the present invention comprehensively considers the factors of error in the ultrasonic gas meter, which is conducive to more accurate optimization of the metering data.

The invention discloses a volume correction instrument error analysis method and system based on an improved PE equation, and aims to improve the accuracy of fuel gas and biogas metering. According to the equipment, performance testing can be carried out under the conditions of different temperatures (20 DEG C to 40 DEG C) and pressures (101.3 kPa to 104.0 kPa) through an integrated fuzzy logic algorithm, and the average correction error is only 0.22%. A high-precision sensor and a data processing unit are used for monitoring and calibrating the gas volume in real time and compensating the influence of temperature and pressure changes. The fuzzy logic controller adjusts the reading of the gas meter according to real-time data, the accuracy of a metering result is ensured, algorithm optimization and intelligent equipment integration are focused, and the energy management efficiency is improved. The volume correction instrument provides help for a modern energy metering system and optimization of energy efficiency and cost.

The utility model discloses a carrying system for gas meter upper shell processing, which comprises a conveying belt arranged along a processing station and a hanging frame used for placing a gas meter upper shell, the hanging frame can be hung on the conveying belt, the processing station at least comprises an automatic feeding station, and an automatic feeding mechanical arm is arranged corresponding to the automatic feeding station. The automatic feeding mechanical arm is used for placing the gas meter upper shells on the hanging frame in batches, and the hanging frame closing device is used for preventing the hanging frame from shaking in the automatic feeding process. By the adoption of the scheme, the hanging frame closing device is mainly arranged, meanwhile, the structure of the hanging frame is optimized, and therefore the stability of shell batch hanging, transporting and follow-up machining processes is improved, and the production efficiency and the product quality can be improved easily.

The innovative gas meter (110(i)) comprises: - a metering unit (225) to generate measurements indicating gas deliveries, said metering unit being operationally connected to the control unit to send the generated measurements in particular to said control unit; - at least a first wireless communication unit (CU(1); CU(2);...; (CU(j)) configured to communicate with a remote acquisition system (180) by exploiting a first type of wireless communication link and to send generated measurements, in particular previously received by said control unit; - at least a second wireless communication unit (CU(1); CU(2);...; (CU(j)) configured to communicate with a remote acquisition system (180) by exploiting a second type of wireless communication link other than the first type of wireless communication link and to send generated measurements, in particular previously received from said control unit.

The utility model discloses a metering module shared by a G4 ultrasonic gas meter and a G6 ultrasonic gas meter, relates to the technical field of gas metering, and solves the technical problem that an existing metering module cannot meet the use requirements of the G4 ultrasonic gas meter and the G6 ultrasonic gas meter. The device comprises a measuring pipe section, an energy converter and a fixing structure, the energy converter is fixed on the measuring pipe section, and the energy converter is a correlation type energy converter; the fixing structure is detachably connected to the gas outlet of the measuring pipe section, and the metering module is fixedly connected with an adapter of a G4 ultrasonic gas meter through the fixing structure, or the metering module is fixedly connected with an adapter of a G6 ultrasonic gas meter through the fixing structure. According to the utility model, the metering module can be fixed on the G4 ultrasonic gas meter or the G6 ultrasonic gas meter by replacing the fixing structure on the measuring pipe section, so that the use scene of the metering module is improved.

The invention relates to the field of gas meter shell detection, in particular to ultrasonic gas meter water tightness detection equipment which comprises a box body, a detection device used for detecting the water tightness of a gas meter shell is installed on the box body, and the detection device comprises an immersion mechanism, a gas circulation mechanism and a cleaning mechanism. The gas circulation mechanism is used for positioning a gas meter shell and inflating the gas meter shell, the immersion mechanism is installed on the box body and located below the gas circulation mechanism, the immersion mechanism is used for immersing the gas meter shell positioned in the gas circulation mechanism in water, the cleaning mechanism comprises a cleaning brush and a driving assembly, the driving assembly is installed on the immersion mechanism, and the cleaning brush is installed on the box body. The cleaning brush is installed on the driving assembly and used for removing bubbles on the gas meter shell immersed in water, the problem that bubbles on the surface of the gas meter shell are inconvenient to clean in a traditional mode is solved, and the effect of conveniently cleaning the bubbles on the surface of the gas meter shell can be achieved.

The invention discloses gas meter detection equipment for sealing performance detection. The gas meter detection equipment comprises a hollow sphere, a side connecting pipe, a top through opening, a transparent rubber sleeve, a top connecting pipe and a bottom cavity, the low-pressure air pump is provided with a U-shaped pipe; the inner wall of the hollow sphere is provided with a plurality of spherical-surface-shaped elastic pieces capable of rotating at the same time, the tops of the spherical-surface-shaped elastic pieces are all provided with top plates, the equipment successfully realizes the sealing performance detection of the gas meter, and meanwhile, mutual gathering of the plurality of spherical-surface-shaped elastic pieces is utilized, so that rotation is facilitated, and the sealing performance of the gas meter is improved. And the elasticity of the spherical surface-shaped elastic piece is utilized, so that after the top plate is loosened, the spherical surface-shaped elastic piece shields the other side connecting pipes, and therefore, the sealing performance of the gas meter connected with the single side connecting pipe can be detected, and the sealing performance of the gas meter connected with the single side connecting pipe can be detected. Therefore, the device can detect the sealing performance of a plurality of gas meters, and the efficiency of the device for detecting the sealing performance of a plurality of gas meters is greatly improved.

The invention relates to the technical field of flow measurement, and provides an ultrasonic gas meter module testing tool which comprises a mounting base and a connecting base, a mounting cavity used for mounting a gas meter module is formed between the mounting base and the connecting base, and the side wall, away from the mounting base, of the connecting base is provided with an input port and an output port which are communicated with the mounting cavity. The gas inlet end of the gas meter module communicates with the mounting cavity, and the gas outlet end of the gas meter module communicates with the output port of the connecting base; a sealing ring is arranged between the mounting seat and the connecting seat, the sealing ring is annularly arranged around the mounting cavity, a connecting piece is arranged between the mounting seat and the connecting seat, and the mounting seat and the connecting seat are detachably connected through the connecting piece. According to the ultrasonic gas meter module testing tool, the metering accuracy of the gas meter module can be detected, and the possibility that a shell of the gas meter is damaged is reduced.

The invention provides a receiving waveform position judging method of an ultrasonic flow metering device, and aims to improve the reliability of flight time measurement and reduce flow metering errors. According to the method, head wave and tail wave detection is achieved through the variable threshold comparator, the threshold is dynamically adjusted to adapt to different detection stages, and it is ensured that echo signals are accurately recognized. Through combination of zero crossing point flight time measurement and pulse width difference comparison, the method can determine the position of a tail wave, forwards presumes the position of an echo waveform, and judges the accuracy of a zero crossing point. In addition, the measurement accuracy is further improved by adjusting the phase of the transmitted ultrasonic signal to enhance the tail wave characteristic. The method is suitable for the field of flow measurement of water meters, heat meters, gas meters and the like, and metering errors caused by signal fluctuation or interference are effectively reduced.

The invention relates to a straight-through type ultrasonic gas meter which comprises a gas meter steel shell, a gas inlet pipe, a gas outlet pipe and a front steel cover. The front steel cover is assembled on the gas meter steel shell, and the front steel cover and the gas meter steel shell jointly define a containing cavity. The gas inlet pipe and the gas outlet pipe are located at the two ends of the gas meter steel shell respectively, and the gas inlet pipe and the gas outlet pipe are opposite in direction. The air inlet pipe and the air outlet pipe are communicated with the accommodating cavity; the ultrasonic sensor is simple in structure, gas enters the containing cavity of the gas meter from the gas inlet pipe by arranging the valve mechanism, and after the gas is guided by the valve guide plate assembly of the valve mechanism, gas flow flows to the bottom of the gas meter base meter and then returns to enter a flow channel gas inlet of the ultrasonic metering module; and a plurality of exhaust holes are formed, so that the entering gas can be dispersed, the gas flow field structure is optimized, and the metering precision is improved.

The invention discloses a real gas flow verification process, which is characterized by comprising the following steps of: 1, preparing real flow gas for verification; a detected meter is arranged in a detection real gas circulation loop; 2, opening a verification real gas circulation loop and enabling gas flow in the verification real gas circulation loop to circularly flow; adjusting and stabilizing the working condition temperature, the working condition instantaneous volume flow and the working condition pressure of the gas in the verification real gas circulation loop to preset values; 3, entering a sampling period, continuously collecting and storing metering data of the standard meter and the detected meter in the sampling period, and detecting the temperature, the working condition instantaneous volume flow rate and the working condition pressure of the gas in the real gas circulation loop; and 4, calculating and outputting verification data of the detected meter according to the metering data in the step 3. According to the invention, the metering precision and operation use data of the gas meter in different working conditions can be obtained, and the adaptability of the gas meter in different gas components can be known; therefore, metering is more accurate, and the novel gas meter is promoted to realize technical progress.

The application relates to the technical field of data processing, in particular to a kiln data monitoring and early warning method based on reinforcement learning, which comprises the following steps: acquiring intelligent gas meter readings at each collection time in each cycle during the operation of a rotary kiln and temperatures at each collection time at each monitoring point; calculating heat space diffusivity at each monitoring point at each collection time in each cycle, calculating heat time dissipation and heat propagation index at each monitoring point at each collection time in each cycle; constructing heat abnormality degree at each monitoring point; calculating energy consumption abnormality degree of the rotary kiln; calculating heat preservation degree at each collection time in each cycle; constructing comprehensive abnormality degree of the rotary kiln; constructing a prediction autoregressive term number according to the comprehensive abnormality degree of the rotary kiln, acquiring a predicted energy consumption of the rotary kiln, and monitoring abnormal conditions of rotary kiln operation energy consumption in combination with a preset energy consumption. The application aims to improve the reliability of rotary kiln operation energy consumption abnormality monitoring.