METERING AND CORRECTING METHODS AND SYSTEMS FOR ULTRASONIC GAS METERS BASED ON SMART GAS INTERNET OF THINGS

    公开(公告)号:US20230417588A1

    公开(公告)日:2023-12-28

    申请号:US18465116

    申请日:2023-09-11

    IPC分类号: G01F1/667 G01F1/66 G01F15/04

    摘要: The present disclosure provides a metering and correcting method and system for an ultrasonic gas meter based on smart gas Internet of Things (IoT). The metering and correcting method is implemented on a smart gas device management platform of the metering and correcting system and includes: in response to receiving a co-correction request from the ultrasonic gas meter, obtaining ultrasonic data and gas medium data; determining a target signal stability value of the ultrasonic gas meter based on the ultrasonic data and the gas medium data; in response to the target signal stability value not meeting a second preset condition, determining a co-correction strategy and sending the co-correction strategy to the ultrasonic gas meter; and evaluating a correction accuracy of the ultrasonic gas meter for performing a correction process based on the co-correction strategy.

    METHOD FOR DETECTION OF PIPELINE VIBRATIONS AND MEASURING INSTRUMENT

    公开(公告)号:US20170328751A1

    公开(公告)日:2017-11-16

    申请号:US15594937

    申请日:2017-05-15

    发明人: Lars Lemke

    IPC分类号: G01F1/66 G01H9/00

    摘要: A method for detection of pipeline vibrations with a measuring instrument connected to a pipeline system through which a medium to be measured flows, the measuring instrument having at least one transducer for detection of an input variable and for output of an output variable and at least one evaluation unit. The method involves detecting the input variable, relaying of an output variable based on the input variable to the evaluation unit, determinating the measured value of the measured variable from the output variable. Monitoring of the operating state of a system is achieved in that the measured variable characterizes the medium located within the pipeline system, that the sampling rate for detection of the input variable is at least twice as high as the frequency of the pipeline vibration and a frequency analysis of the brief fluctuations of the measured variable is conducted.

    FLOW SENSING DEVICE
    8.
    发明申请
    FLOW SENSING DEVICE 审中-公开
    流量感应装置

    公开(公告)号:US20160370216A1

    公开(公告)日:2016-12-22

    申请号:US15140807

    申请日:2016-04-28

    申请人: WaterTally, Inc.

    摘要: A non-invasive, hands-free “water flow device” senses when water is and is not flowing and can give the user a visual display, of the real time water flow duration and quantity of water used by a shower (or other water dispensing device), for example. The water flow device may use an acoustic transducer (e.g., a microphone) to sense the acoustic waves generated by the flow of water during a shower. For example, the flow or lack of flow of water may be determined by analyzing the acoustic signature and/or amplitude of sounds (e.g., within a certain frequency range) in the shower.

    摘要翻译: 无创无手的“水流装置”可以感测何时水流并且不流动,并且可以给用户可视显示,实时的水流持续时间和淋浴(或其他水分配)使用的水量 设备)。 水流装置可以使用声换能器(例如,麦克风)来感测在淋浴期间由水流产生的声波。 例如,可以通过分析淋浴器中的声学特征和/或声音的幅度(例如,在一定的频率范围内)来确定水的流动或缺乏流动。

    APPARATUS AND METHOD FOR ACOUSTIC MONITORING OF STEAM QUALITY AND FLOW

    公开(公告)号:US20160356744A1

    公开(公告)日:2016-12-08

    申请号:US15237522

    申请日:2016-08-15

    IPC分类号: G01N29/036 G01F1/66

    CPC分类号: G01N29/036 G01F1/666

    摘要: An apparatus and method for noninvasively monitoring steam quality and flow and in pipes or conduits bearing flowing steam, are described. By measuring the acoustic vibrations generated in steam-carrying conduits by the flowing steam either by direct contact with the pipe or remotely thereto, converting the measured acoustic vibrations into a frequency spectrum characteristic of the natural resonance vibrations of the pipe, and monitoring the amplitude and/or the frequency of one or more chosen resonance frequencies, changes in the steam quality in the pipe are determined. The steam flow rate and the steam quality are inversely related, and changes in the steam flow rate are calculated from changes in the steam quality once suitable calibration curves are obtained.

    A METHOD AND A DEVICE FOR DETERMINING THE MASS FLOW RATE AND THE PRESENCE OR ABSENCE OF A LIQUID FLOWING IN A PIPE
    10.
    发明申请
    A METHOD AND A DEVICE FOR DETERMINING THE MASS FLOW RATE AND THE PRESENCE OR ABSENCE OF A LIQUID FLOWING IN A PIPE 审中-公开
    用于确定质量流量的方法和装置以及液体流在管中的存在或不存在

    公开(公告)号:US20160223376A1

    公开(公告)日:2016-08-04

    申请号:US15023147

    申请日:2014-09-19

    申请人: DAIRYMASTER

    IPC分类号: G01F1/76 G01F1/66

    摘要: A device (1) for determining the mass flow rate of milk turbulently flowing with air in a pipe (2) in pulsed milk slugs comprises sampling a signal from a microphone (8) of the device (1) indicative of sonic signals produced by the milk flow. The sampled signals are read by a microprocessor (15) which applies a Fast Fourier Transform to the sampled signal to produce the frequency domain of the sampled signal. The microprocessor (15) is configured to compute the average energy value of the sampled signal in the frequency bandwidth of 6 kHz to 15 kHz during consecutive monitoring periods. The average energy values are inserted into a calibration equation, which may be a power law equation, a polynomial equation, a logarithmic equation or any other such suitable equation in order to convert the average energy value to a mass flow rate of the milk flowing through the pipe 2 during that predefined monitoring period. The total mass flow of milk flowing through the pipeline (2) during a period from T1 to T2 is determined by integrating the determined mass flow rate of the milk from the time T1 to the time T2. Disengagement of a milking cluster from the teats of an animal as a result of kick-off during milking is also determined when the monitored signal from the microphone (8) transitions from the signal indicative of milk flowing in pulsed slugs to a continuous relatively high energy noise signal indicative of air being continuously drawn through the pipeline.

    摘要翻译: 用于确定在脉冲乳块中管道(2)中与空气紊乱流动的牛奶的质量流量的装置(1)包括对来自装置(1)的麦克风(8)的信号进行采样,指示由 牛奶流。 采样信号由微处理器(15)读取,微处理器(15)对采样信号进行快速傅里叶变换,以产生采样信号的频域。 微处理器(15)被配置为在连续的监视周期期间计算6kHz至15kHz的频率带宽中的采样信号的平均能量值。 将平均能量值插入到校准方程式中,其可以是幂律方程式,多项式方程式,对数方程式或任何其他这样的适当方程,以将平均能量值转换为流过牛奶的质量流量 管道2在该预定义的监视期间。 在T1到T2期间流经管道(2)的牛奶的总质量流量是通过将所确定的时间T1的质量流量与时间T2进行积分来确定的。 当来自麦克风(8)的监测信号从表示在脉冲絮片中流动的牛奶的信号转变为连续相对较高的能量时,还确定了挤奶期间由于启动而导致的来自动物乳头的挤奶群的脱落 指示空气连续地通过管道的噪声信号。