CN116105836A - Remote self-diagnosis ultrasonic gas meter design based on temperature compensation algorithm - Google Patents
Remote self-diagnosis ultrasonic gas meter design based on temperature compensation algorithm Download PDFInfo
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- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F25/00—Testing or calibration of apparatus for measuring volume, volume flow or liquid level or for metering by volume
- G01F25/10—Testing or calibration of apparatus for measuring volume, volume flow or liquid level or for metering by volume of flowmeters
- G01F25/15—Testing or calibration of apparatus for measuring volume, volume flow or liquid level or for metering by volume of flowmeters specially adapted for gas meters
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- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F1/00—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
- G01F1/66—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by measuring frequency, phase shift or propagation time of electromagnetic or other waves, e.g. using ultrasonic flowmeters
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- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F15/00—Details of, or accessories for, apparatus of groups G01F1/00 - G01F13/00 insofar as such details or appliances are not adapted to particular types of such apparatus
- G01F15/02—Compensating or correcting for variations in pressure, density or temperature
- G01F15/04—Compensating or correcting for variations in pressure, density or temperature of gases to be measured
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Abstract
Description
技术领域technical field
本发明涉及一种基于温度补偿算法的远程自诊断超声波燃气表设计。The invention relates to the design of a remote self-diagnosing ultrasonic gas meter based on a temperature compensation algorithm.
背景技术Background technique
天然气作为一种高质量，绿色环保的能源成为国内能源结构的首选。随着国家推广清洁能源政策的逐步推进，天然气的使用范围和数量不断增高，此时如何实现公平计量特别重要。当今燃气管道的建成和普及，燃气计量仪表的发展较为迅速，其中最具代表性的新型仪表之一当属超声波燃气表，超声波燃气表采用时差法，通过一对换能器交替收发超声波信号，通过在介质中的顺流和逆流传播时间来测量流体的流速，根据流速计算流量，是一种非接触式的测量仪表，测量精度高、量程宽，偏于安装，得到广泛应用。As a high-quality, green and environmentally friendly energy source, natural gas has become the first choice in the domestic energy structure. With the gradual advancement of the country's promotion of clean energy policies, the scope and quantity of natural gas use continue to increase. At this time, how to achieve fair measurement is particularly important. With the completion and popularization of today's gas pipelines, the development of gas metering instruments is relatively rapid. One of the most representative new instruments is the ultrasonic gas meter. The ultrasonic gas meter adopts the time difference method to alternately send and receive ultrasonic signals through a pair of transducers It is a non-contact measuring instrument with high measurement accuracy, wide measuring range, easy to install, and widely used.
在传统计量校准中，一般都将被校计量器具送到专业计量机构开展校准工作，需要花费大量的时间和精力，而且成本相对较高。近几年，随着信息技术与网络技术的发展，远程计量在一些发达国家得以应用，将远程计量技术应用到计量校准工作中，可以有效提升计量校准工作的效率。远程计量主要是借助计算机网络技术，使检测人员可以远程控制被测设备，实现人员不在被测设备附近也能完成仪器的校准。远程计量能够降低检测成本、缩短量值溯源和传递时间。现今测量发现，温度、压力发生变化对超声波燃气表测量精度的影响较大，由此设计一种基于温度补偿算法的远程自诊断超声波燃气表设计，提高超声波燃气表的测量精度。In traditional measurement calibration, the measuring instruments to be calibrated are generally sent to professional measurement institutions for calibration, which takes a lot of time and energy, and the cost is relatively high. In recent years, with the development of information technology and network technology, remote measurement has been applied in some developed countries. Applying remote measurement technology to measurement and calibration work can effectively improve the efficiency of measurement and calibration work. Remote measurement mainly uses computer network technology to enable the testing personnel to remotely control the equipment under test, so that the calibration of the instrument can be completed even if the personnel are not near the equipment under test. Remote metrology can reduce the cost of inspection and shorten the traceability and delivery time of the value. Nowadays, it is found that changes in temperature and pressure have a greater impact on the measurement accuracy of ultrasonic gas meters. Therefore, a remote self-diagnosis ultrasonic gas meter design based on temperature compensation algorithm is designed to improve the measurement accuracy of ultrasonic gas meters.
发明内容Contents of the invention
本发明的目的是提高超声波燃气表的测量精度，通过超声波燃气表远程计量采集并校准实现方便，智能化程度高，使用便捷，功耗低，运行安全可靠性高，便于推广使用。具体技术方案如下：The purpose of the present invention is to improve the measurement accuracy of the ultrasonic gas meter, which is convenient to realize remote measurement and calibration through the ultrasonic gas meter, has a high degree of intelligence, is convenient to use, has low power consumption, high operating safety and reliability, and is easy to popularize and use. The specific technical scheme is as follows:
本发明所述的一种基于温度补偿算法的远程自诊断超声波燃气表设计，主要包括硬件平台设计、计算机、网络化仪器，数据采集装置、计量校准模块和计量校准系统，其中计量校准系统通常都会选择不同总线标准。在计量校准系统中，可以结合虚拟或实物仪器实现网络通信，立足当前技术条件，比较成熟的远程数据传输技术包括了DataSocket、LoRa、NB-IOT和5G等。The design of a remote self-diagnostic ultrasonic gas meter based on temperature compensation algorithm in the present invention mainly includes hardware platform design, computer, networked instrument, data acquisition device, measurement calibration module and measurement calibration system, wherein the measurement calibration system usually has Select a different bus standard. In the measurement and calibration system, virtual or physical instruments can be combined to realize network communication. Based on the current technical conditions, more mature remote data transmission technologies include DataSocket, LoRa, NB-IOT and 5G.
本发明所述的一种基于温度补偿算法的远程自诊断超声波燃气表设计，其特征在于，所述的计算机主要是远端的控制设备。The design of a remote self-diagnosing ultrasonic gas meter based on a temperature compensation algorithm according to the present invention is characterized in that the computer is mainly a remote control device.
本发明所述的一种基于温度补偿算法的远程自诊断超声波燃气表设计，其特征在于，所述的硬件平台设计主要是现场的温度采集装置、计量设备、监控设备和远端的控制设备、数据存储设备。其中的温度采集装置主要包含温度传感器、热源、多路转换开关等；计量设备的参数指标需符合国家检定规程的要求，现场的监控设备包含摄像头、射频传感器等；远端的控制设备主要是计算机，数据存储设备是服务器。The design of a remote self-diagnostic ultrasonic gas meter based on a temperature compensation algorithm according to the present invention is characterized in that the hardware platform design is mainly the on-site temperature acquisition device, metering equipment, monitoring equipment and remote control equipment, data storage device. The temperature acquisition device mainly includes temperature sensors, heat sources, multi-way switches, etc.; the parameter indicators of the metering equipment must meet the requirements of the national verification regulations, and the on-site monitoring equipment includes cameras, radio frequency sensors, etc.; the remote control equipment is mainly computers. , the data storage device is a server.
本发明所述的一种基于温度补偿算法的远程自诊断超声波燃气表设计，其特征在于，所述的网络化仪器主要是具有远程网络化的特点，其中网络化计量校准模块不仅局限于互联网和广域网也包含专线网络与局域网，访问网络包括C/S、B/S以及CB/S等。C/S主要是采用TCP/IP协议进行数据传输，B/S主要是通过浏览器直接访问校准网站地址，实现远程仪器控制和监测远端仪器运行情况。The design of a remote self-diagnostic ultrasonic gas meter based on a temperature compensation algorithm according to the present invention is characterized in that the networked instrument mainly has the characteristics of remote networking, and the networked measurement and calibration module is not limited to the Internet and The wide area network also includes dedicated line network and local area network, and the access network includes C/S, B/S, and CB/S. C/S mainly uses TCP/IP protocol for data transmission, and B/S mainly directly accesses the calibration website address through a browser to realize remote instrument control and monitor the operation of remote instruments.
本发明所述的一种基于温度补偿算法的远程自诊断超声波燃气表设计，其特征在于，所述计量校准模块主要包含数据采集装置、数据显示与保存、数据传输模块、远程数据采集及监控、远程校准功能。The design of a remote self-diagnostic ultrasonic gas meter based on a temperature compensation algorithm according to the present invention is characterized in that the measurement calibration module mainly includes a data acquisition device, data display and storage, a data transmission module, remote data acquisition and monitoring, Remote calibration function.
本发明所述的一种基于温度补偿算法的远程自诊断超声波燃气表设计，其特征在于，所述的数据采集装置具备与计算机通信的标准口引出端，所以PC总线的数据采集系统通过串行总线RS232、RS485或并行总线IEEE-4888等设别构成集散式系统。数据采集模块主要通过本地PC与RS232总线通信，与扫描开关进行通信，从数字电压表读取电阻值。除了数据采集装置，还包括本地数据采集软件设计。The design of a remote self-diagnostic ultrasonic gas meter based on a temperature compensation algorithm according to the present invention is characterized in that the data acquisition device has a standard port outlet for communication with the computer, so the data acquisition system of the PC bus passes through the serial Bus RS232, RS485 or parallel bus IEEE-4888 constitute a distributed system. The data acquisition module mainly communicates with the RS232 bus through the local PC, communicates with the scanning switch, and reads the resistance value from the digital voltmeter. In addition to the data acquisition device, it also includes the design of local data acquisition software.
本发明所述的一种基于温度补偿算法的远程自诊断超声波燃气表设计，其特征在于，所述的数据显示与保存主要是通过显示控件和反应实时数据变化趋势的趋势图进行数据显示并通过文件操作函数实现保存功能。The design of a remote self-diagnostic ultrasonic gas meter based on a temperature compensation algorithm according to the present invention is characterized in that the data display and storage are mainly through the display control and the trend graph reflecting the real-time data change trend for data display and through The file operation function implements the save function.
本发明所述的一种基于温度补偿算法的远程自诊断超声波燃气表设计，其特征在于，所述的数据传输模块主要包括Socket传输模块和数据库读写模块，数据传输是通过DataSocket技术实现，通过TCP/IP传输协议共享和实时发布实时数据。The design of a remote self-diagnostic ultrasonic gas meter based on a temperature compensation algorithm according to the present invention is characterized in that the data transmission module mainly includes a Socket transmission module and a database read-write module, and the data transmission is realized through DataSocket technology, through The TCP/IP transmission protocol shares and publishes real-time data in real time.
本发明所述的一种基于温度补偿算法的远程自诊断超声波燃气表设计，其特征在于，所述的计量校准系统主要是可以结合虚拟或实物仪器实现网络通信，立足当前技术条件，比较成熟的远程数据传输技术包括了LoRa、NB-IOT和5G等。The design of a remote self-diagnostic ultrasonic gas meter based on a temperature compensation algorithm according to the present invention is characterized in that the measurement and calibration system can mainly realize network communication in combination with virtual or physical instruments, and is relatively mature based on current technical conditions. Long-distance data transmission technologies include LoRa, NB-IOT and 5G, etc.
附图说明Description of drawings
图1是本发明方法所述一种测温远程校准流程图；Fig. 1 is a kind of temperature measurement remote calibration flowchart described in the method of the present invention;
图2是本发明方法所述一种远程自诊断超声波燃气表的流程图；Fig. 2 is a flow chart of a remote self-diagnosing ultrasonic gas meter described in the method of the present invention;
具体实施方式Detailed ways
以下结合实施例并对照附图对本发明方法作进一步详细的说明：Below in conjunction with embodiment and with reference to accompanying drawing, the inventive method is described in further detail:
如图1所示，本发明方法所述的一种基于温度补偿算法的远程自诊断超声波燃气表设计，其中测温远程校准主要包含现场检定校准设备、监控设备和远程测量控制系统。主要工作原理是按照检定规程由现场检定装置产生的恒温源，并采集标准温度传感器和被检温度传感器的输出信号，通过现场的数据采集系统将数据传输给远端控制的计算机进行数据分析和数据处理；同时现场视频监控将现场检定情况实时传给远端控制系统。提高了工作效率，减少现场检定的复杂。As shown in Figure 1, the design of a remote self-diagnosing ultrasonic gas meter based on the temperature compensation algorithm described in the method of the present invention, wherein the remote calibration of temperature measurement mainly includes on-site verification and calibration equipment, monitoring equipment and remote measurement and control system. The main working principle is to use the constant temperature source generated by the on-site verification device according to the verification regulations, and collect the output signals of the standard temperature sensor and the tested temperature sensor, and transmit the data to the remote-controlled computer through the on-site data acquisition system for data analysis and data analysis. At the same time, the on-site video monitoring will transmit the on-site verification situation to the remote control system in real time. Improve work efficiency and reduce the complexity of on-site verification.
本发明方法所述的一种基于温度补偿算法的远程自诊断超声波燃气表设计，现场检定校准设备主要通过被检表温度传感器和标准传感器进行数据采集、数据传输和远程监控等工作；现场检定装置主要包含标准温度传感器、恒温设备、多路扫描开关、数据采集模块、控制计算机以及视频监控设备。该现场检定装置的软件功能包含恒温设备、多路扫描开关、数据采集模块主要通过本地PC与RS232总线的通信功能、数据传输是通过DataSocket技术实现的网络功能。In the design of a remote self-diagnostic ultrasonic gas meter based on the temperature compensation algorithm described in the method of the present invention, the on-site verification and calibration equipment mainly performs data collection, data transmission and remote monitoring through the temperature sensor of the tested meter and the standard sensor; the on-site verification device It mainly includes standard temperature sensor, constant temperature equipment, multi-channel scanning switch, data acquisition module, control computer and video monitoring equipment. The software function of the on-site verification device includes constant temperature equipment, multi-channel scanning switch, data acquisition module mainly through the communication function of the local PC and RS232 bus, and the data transmission is a network function realized through DataSocket technology.
本发明方法所述的一种基于温度补偿算法的远程自诊断超声波燃气表设计，监控设备主要是有现场监控装置和远程监控PC，现场监控主要包括视频监控、环境参数监控以及对计量设备情况的监控等；远程监控PC是检测计算机的运行情况。In the design of a remote self-diagnostic ultrasonic gas meter based on the temperature compensation algorithm described in the method of the present invention, the monitoring equipment mainly includes an on-site monitoring device and a remote monitoring PC, and the on-site monitoring mainly includes video monitoring, environmental parameter monitoring and monitoring of the metering equipment. Monitoring, etc.; remote monitoring of PC is to detect the operation of the computer.
本发明方法所述的一种基于温度补偿算法的远程自诊断超声波燃气表设计，远程测量控制系统主要是实现Internet采集远程设备的状态信息、向远程仪器发出测量控制指令并采集数据、实现测量过程的实时监控及测量数据的处理。According to the design of a remote self-diagnostic ultrasonic gas meter based on the temperature compensation algorithm described in the method of the present invention, the remote measurement control system mainly realizes the Internet to collect the status information of the remote equipment, sends measurement control instructions to the remote equipment and collects data, and realizes the measurement process. Real-time monitoring and processing of measurement data.
如图2所示，本发明方法所述的一种基于温度补偿算法的远程自诊断超声波燃气表设计，其中远程自诊断标准不确定度主要是对超声波燃气表的性能指标进行测量并对此进行标准不确定度分析。As shown in Figure 2, a kind of remote self-diagnosis ultrasonic gas meter design based on the temperature compensation algorithm described in the method of the present invention, wherein the remote self-diagnosis standard uncertainty is mainly to measure the performance index of the ultrasonic gas meter and perform Standard uncertainty analysis.
本发明方法所述的一种基于温度补偿算法的远程自诊断超声波燃气表设计，远程自诊断标准不确定度的过程主要是被检表(现场)和标准传递表进行标准装置的量值溯源链；当需要校准流量计时，再将其转移到校准现场，进行校准实验。获得的数据经互联网发送回到软件平台(校准实验室)，平台再对数据进行分析处理，得到校准结果。According to the design of a remote self-diagnosis ultrasonic gas meter based on the temperature compensation algorithm described in the method of the present invention, the process of remote self-diagnosis standard uncertainty is mainly the value traceability chain of the standard device carried out by the inspected meter (on-site) and the standard transfer meter ; When the flowmeter needs to be calibrated, it is transferred to the calibration site for calibration experiments. The obtained data is sent back to the software platform (calibration laboratory) via the Internet, and the platform analyzes and processes the data to obtain the calibration result.
本发明方法所述的一种基于温度补偿算法的远程自诊断超声波燃气表设计，其具体通过对超声波燃气表进行测量，将测量数据通过无线传输DataSocket技术上传给计算机，数据库对测量数据进行保存，计算机对数据进行误差计算、重复性计算并进行标准不确定度分析，检验计算结果的准确性。The design of a remote self-diagnostic ultrasonic gas meter based on the temperature compensation algorithm described in the method of the present invention specifically measures the ultrasonic gas meter, uploads the measured data to the computer through wireless transmission DataSocket technology, and stores the measured data in the database. The computer performs error calculation, repeatability calculation and standard uncertainty analysis on the data to test the accuracy of the calculation results.
本发明方法所述的一种基于温度补偿算法的远程自诊断超声波燃气表设计，所述的标准不确定度分析主要分析各个因素对超声波燃气表的影响，以及检表时产生较大的误差的原因，消除产生的误差，提高超声波燃气表的精度。The design of a remote self-diagnostic ultrasonic gas meter based on the temperature compensation algorithm described in the method of the present invention, the standard uncertainty analysis mainly analyzes the influence of various factors on the ultrasonic gas meter, and the large error generated during meter inspection The reason, eliminate the error, improve the accuracy of the ultrasonic gas meter.
以上实例的说明只是用于帮助理解本发明的核心思想；同时，对于本领域的一般技术人员，依据本发明方法的思想，在具体实施方式及应用范围上均会有改变之处，综上所述，本说明书内容不应理解为对本发明方法的限制。The description of the above examples is only used to help understand the core idea of the present invention; at the same time, for those of ordinary skill in the art, according to the idea of the method of the present invention, there will be changes in the specific implementation and scope of application. In summary, As mentioned above, the content of this specification should not be construed as a limitation on the method of the present invention.
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| CN116642560A (en) * | 2023-07-27 | 2023-08-25 | 成都秦川物联网科技股份有限公司 | Ultrasonic gas meter metering correction method and system based on intelligent gas Internet of things |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN116642560A (en) * | 2023-07-27 | 2023-08-25 | 成都秦川物联网科技股份有限公司 | Ultrasonic gas meter metering correction method and system based on intelligent gas Internet of things |
| CN116642560B (en) * | 2023-07-27 | 2023-10-13 | 成都秦川物联网科技股份有限公司 | Ultrasonic gas meter metering correction method and system based on intelligent gas Internet of things |
| US20230417588A1 (en) * | 2023-07-27 | 2023-12-28 | Chengdu Qinchuan Iot Technology Co., Ltd. | Metering and correcting methods and systems for ultrasonic gas meters based on smart gas internet of things |
| US11971280B2 (en) * | 2023-07-27 | 2024-04-30 | Chengdu Qinchuan Iot Technology Co., Ltd. | Metering and correcting methods and systems for ultrasonic gas meters based on smart gas internet of things |
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