WO2020200009A1 - Intelligent gas meter anti-interference metering system - Google Patents

Intelligent gas meter anti-interference metering system Download PDF

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WO2020200009A1
WO2020200009A1 PCT/CN2020/081140 CN2020081140W WO2020200009A1 WO 2020200009 A1 WO2020200009 A1 WO 2020200009A1 CN 2020081140 W CN2020081140 W CN 2020081140W WO 2020200009 A1 WO2020200009 A1 WO 2020200009A1
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light
module
gas meter
metering system
mcu
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PCT/CN2020/081140
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French (fr)
Chinese (zh)
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王滨滨
刘金梁
胡莽
狄鹏
汪培春
彭学枝
陆从杭
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上海飞奥燃气设备有限公司
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Publication of WO2020200009A1 publication Critical patent/WO2020200009A1/en

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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • 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
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • 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
    • G01F15/06—Indicating or recording devices
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • 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
    • G01F15/18—Supports or connecting means for meters

Definitions

  • This application relates to the field of data acquisition and measurement in instrumentation, for example, to an anti-interference measurement system for a smart gas meter.
  • the measurement data collection in household smart gas meters mainly uses photoelectric or magnetic induction methods to convert mechanical character wheel information into digital information, and display it on the LCD (Liquid Crystal Display) screen.
  • the mechanical character wheel The accumulator is an indispensable device. This method has the following problems:
  • the cost is high.
  • the cost of a photoelectric accumulator accounts for almost 1/4 of the entire intelligent control part.
  • the anti-interference ability is weak.
  • the photoelectric accumulator is sensitive to strong external light, while the reed switch and Hall accumulator are sensitive to strong magnetic interference. Therefore, these two types of accumulators are prone to errors when interference occurs.
  • the reliability is not high.
  • the mechanical watch transmits the gas consumption information to the word wheel counter through gear transmission. In the process of long-term use, if the gear is severely worn or even out of gear, the entire metering system will not work.
  • the application provides an anti-interference metering system for an intelligent gas meter, which adopts non-contact light sensing counting, has high reliability, can prevent strong magnetic interference, and has low cost.
  • This application provides an anti-interference metering system for a smart gas meter, which includes a housing, an output device, and a turntable, a light emitting module, a photosensitive module, and an MCU arranged in the housing; the turntable is configured to pass through a
  • the rotating shaft is coaxially connected with the transmission shaft of the counter of a mechanical gas meter; the rotating disk forms a light-transmitting hole, the light emitting module and the photosensitive module are respectively arranged on both sides of the rotating disk, and the light emitting module and the
  • the photosensitive module is arranged coaxially, the light transmission hole can be rotated with the turntable between the light emitting module and the photosensitive module; the light emitting module and the photosensitive module are electrically connected to the MCU; the output device Connect to the MCU.
  • Figure 1 is a schematic structural diagram of an anti-interference metering system for a smart gas meter provided by an embodiment of the application.
  • an anti-interference metering system for a smart gas meter includes a casing 2, an output device 21, a turntable 22, a light emitting module 23, a photosensitive module 24, and an MCU (microprocessor) arranged in the casing 2.
  • the turntable 22 is coaxially connected to the drive shaft of the counter of the mechanical gas meter 1 through the rotating shaft 3; the turntable 22 is formed with a light-transmitting hole 221, and the light-emitting module 23 and the photosensitive module 24 are respectively arranged in Both sides of the turntable 22 and the light emitting module 23 and the photosensitive module 24 are arranged coaxially, the light transmission hole 221 can be rotated with the turntable 22 to a position between the light emitting module 23 and the photosensitive module 24; the light emitting module 23 and the photosensitive module 24 are electrically connected to the MCU 25 respectively Connection; output device 21 is connected to MCU25.
  • non-contact light sensing counting is realized.
  • the drive shaft of the counter of the mechanical gas meter 1 will drive the turntable 22 to rotate, thereby
  • the light emitted by the light-emitting module 23 periodically passes through the light-transmitting hole 221 to generate a periodic pulse signal.
  • the photosensitive module 24 receives the pulse signal and sends it to the MCU 25.
  • the MCU 25 can obtain the gas metering information by calculating the pulse signal.
  • the reliability is high, and strong magnetic interference can be eliminated, and the cost is low.
  • the closed design of the housing 2 can prevent the interference of strong external light and improve the accuracy of measurement.
  • the first end of the rotating shaft 3 is vertically fixed to the middle of the turntable 22, and the second end of the rotating shaft 3 is coaxially fixedly connected with the transmission shaft of the counter of the mechanical gas meter 1.
  • the output device 21 includes a display, which is fixed outside the housing 2 and electrically connected to the MCU 25, and the display is configured to display gas metering information calculated by the MCU 25.
  • the photosensitive module 24 includes a photosensitive diode, and the model of the photosensitive diode may be PT204B.
  • the light emitting module 23 includes a light emitting diode, and the model of the light emitting diode may be 202QRC.
  • the anti-interference metering system for the smart gas meter in this embodiment further includes a wireless module 27 and a flash memory module 26.
  • the wireless module 27 is electrically connected to the MCU 25 and is in communication connection with the gas background server.
  • the flash memory module 26 is connected to the MCU 25.
  • the model of the flash memory module 26 may be AT25DF041B.
  • the wireless module 27 includes a full Netcom module, and the model of the full Netcom module may be NB86-G.
  • this application provides a hardware basis for non-contact light sensing counting, with high reliability, preventing strong magnetic interference, and low cost.
  • the closed design of the shell can prevent the interference of strong external light and improve the accuracy of measurement.
  • the display is used to display the gas metering information calculated by the MCU.

Abstract

Disclosed is an intelligent gas meter anti-interference metering system. The intelligent gas meter anti-interference metering system comprises a shell (2), an output device (21), and a rotary disk (22), a light-emitting module (23), a light-sensing module (24) and an MCU (25) arranged inside the shell, wherein the rotary disk is configured to be in coaxial transmission connection with a transmission shaft of a counter of a mechanical gas meter via a rotating shaft; the rotary disk forms a light-transmitting hole (221), the light-emitting module and the light-sensing module are respectively arranged on two sides of the rotary disk and are coaxially arranged, and the light-transmitting hole can rotate with the rotary disk to a position between the light-emitting module and the light-sensing module; the light-emitting module and the light-sensing module are respectively electrically connected to the MCU; and the output device is connected to the MCU.

Description

智能燃气表抗干扰计量系统Intelligent gas meter anti-interference metering system
本申请要求在2019年4月1日提交中国专利局、申请号为201910257154.1的中国专利申请的优先权，该申请的全部内容通过引用结合在本申请中。This application claims the priority of the Chinese patent application filed with the Chinese Patent Office with application number 201910257154.1 on April 1, 2019. The entire content of this application is incorporated into this application by reference.
技术领域Technical field
本申请涉及仪器仪表中数据采集和计量领域，例如涉及一种智能燃气表抗干扰计量系统。This application relates to the field of data acquisition and measurement in instrumentation, for example, to an anti-interference measurement system for a smart gas meter.
背景技术Background technique
目前家用智能燃气表中计量数据的采集，主要是利用光电或磁感应方式将机械字轮信息转化为数字信息，并显示在LCD(Liquid Crystal Display)液晶屏中，在这一过程中，机械字轮累加器是必不可少的器件，这种方式主要有如下一些问题：At present, the measurement data collection in household smart gas meters mainly uses photoelectric or magnetic induction methods to convert mechanical character wheel information into digital information, and display it on the LCD (Liquid Crystal Display) screen. In this process, the mechanical character wheel The accumulator is an indispensable device. This method has the following problems:
1、成本高，一个光电累加器的成本几乎占据整个智能控制部分的1/4。1. The cost is high. The cost of a photoelectric accumulator accounts for almost 1/4 of the entire intelligent control part.
2、抗干扰能力弱，光电累加器对外部强光敏感，而干簧管和霍尔累加器对强磁干扰敏感，因此在出现干扰时这两类累加器均容易出错。2. The anti-interference ability is weak. The photoelectric accumulator is sensitive to strong external light, while the reed switch and Hall accumulator are sensitive to strong magnetic interference. Therefore, these two types of accumulators are prone to errors when interference occurs.
3、可靠性不高，机械表通过齿轮传动将燃气用量信息传送给字轮计数器，在长久使用过程中，如果齿轮磨损严重，甚至脱齿，则整个计量系统将无法工作。3. The reliability is not high. The mechanical watch transmits the gas consumption information to the word wheel counter through gear transmission. In the process of long-term use, if the gear is severely worn or even out of gear, the entire metering system will not work.
发明内容Summary of the invention
本申请提供一种智能燃气表抗干扰计量系统，采用非接触式光感计数，可靠性高，并可杜绝强磁干扰，且成本低。The application provides an anti-interference metering system for an intelligent gas meter, which adopts non-contact light sensing counting, has high reliability, can prevent strong magnetic interference, and has low cost.
本申请提供一种智能燃气表抗干扰计量系统，包括一壳体、一输出设备以及设置于所述壳体内的一转盘、一发光模块、一感光模块和一MCU；所述转盘配置为通过一转轴与一机械燃气表的计数器的传动轴同轴传动连接；所述转盘形成一透光孔，所述发光模块和所述感光模块分别设置于所述转盘的两侧且所述发光模块和所述感光模块同轴设置，所述透光孔可随转盘旋转至所述发光模 块和所述感光模块之间；所述发光模块和所述感光模块分别与所述MCU电连接；所述输出设备连接至所述MCU。This application provides an anti-interference metering system for a smart gas meter, which includes a housing, an output device, and a turntable, a light emitting module, a photosensitive module, and an MCU arranged in the housing; the turntable is configured to pass through a The rotating shaft is coaxially connected with the transmission shaft of the counter of a mechanical gas meter; the rotating disk forms a light-transmitting hole, the light emitting module and the photosensitive module are respectively arranged on both sides of the rotating disk, and the light emitting module and the The photosensitive module is arranged coaxially, the light transmission hole can be rotated with the turntable between the light emitting module and the photosensitive module; the light emitting module and the photosensitive module are electrically connected to the MCU; the output device Connect to the MCU.
附图说明Description of the drawings
图1为本申请实施例提供的智能燃气表抗干扰计量系统的结构示意图。Figure 1 is a schematic structural diagram of an anti-interference metering system for a smart gas meter provided by an embodiment of the application.
具体实施方式detailed description
请参阅图1，本申请实施例的一种智能燃气表抗干扰计量系统，包括壳体2、输出设备21以及设置于壳体2内的转盘22、发光模块23、感光模块24和MCU(microprocessor control unit微处理机控制单元)25；转盘22通过转轴3与机械燃气表1的计数器的传动轴同轴传动连接；转盘22上形成有透光孔221，发光模块23和感光模块24分别设置于转盘22的两侧且发光模块23和感光模块24同轴设置，透光孔221可随转盘22旋转至发光模块23和感光模块24之间的位置；发光模块23和感光模块24分别与MCU25电连接；输出设备21连接MCU25。Please refer to FIG. 1, an anti-interference metering system for a smart gas meter according to an embodiment of the present application includes a casing 2, an output device 21, a turntable 22, a light emitting module 23, a photosensitive module 24, and an MCU (microprocessor) arranged in the casing 2. control unit (microprocessor control unit) 25; the turntable 22 is coaxially connected to the drive shaft of the counter of the mechanical gas meter 1 through the rotating shaft 3; the turntable 22 is formed with a light-transmitting hole 221, and the light-emitting module 23 and the photosensitive module 24 are respectively arranged in Both sides of the turntable 22 and the light emitting module 23 and the photosensitive module 24 are arranged coaxially, the light transmission hole 221 can be rotated with the turntable 22 to a position between the light emitting module 23 and the photosensitive module 24; the light emitting module 23 and the photosensitive module 24 are electrically connected to the MCU 25 respectively Connection; output device 21 is connected to MCU25.
通过转盘22、发光模块23、感光模块24和MCU25的配合，实现了非接触式的光感计数，机械燃气表1在工作时，机械燃气表1的计数器的传动轴会带动转盘22转动，从而会使得发光模块23发出的光线周期性地穿过透光孔221从而产生周期性的脉冲信号，感光模块24接收该脉冲信号并发送给MCU25，MCU25通过计算脉冲信号就可获得燃气的计量信息，可靠性高，并可杜绝强磁干扰，且成本低。壳体2的封闭式设计可杜绝外部强光的干扰，提高测量的精确度。Through the cooperation of the turntable 22, the light-emitting module 23, the photosensitive module 24 and the MCU25, non-contact light sensing counting is realized. When the mechanical gas meter 1 is working, the drive shaft of the counter of the mechanical gas meter 1 will drive the turntable 22 to rotate, thereby The light emitted by the light-emitting module 23 periodically passes through the light-transmitting hole 221 to generate a periodic pulse signal. The photosensitive module 24 receives the pulse signal and sends it to the MCU 25. The MCU 25 can obtain the gas metering information by calculating the pulse signal. The reliability is high, and strong magnetic interference can be eliminated, and the cost is low. The closed design of the housing 2 can prevent the interference of strong external light and improve the accuracy of measurement.
本实施例中，转轴3的第一端垂直固定于转盘22的中部，转轴3的第二端与机械燃气表1的计数器的传动轴同轴固定连接。In this embodiment, the first end of the rotating shaft 3 is vertically fixed to the middle of the turntable 22, and the second end of the rotating shaft 3 is coaxially fixedly connected with the transmission shaft of the counter of the mechanical gas meter 1.
输出设备21包括显示器，显示器固定于壳体2外并与MCU25电连接，显示器配置为显示MCU25计算获得的燃气的计量信息。The output device 21 includes a display, which is fixed outside the housing 2 and electrically connected to the MCU 25, and the display is configured to display gas metering information calculated by the MCU 25.
感光模块24包括光敏二极管，光敏二极管的型号可以为PT204B。发光模 块23包括发光二极管，发光二极管的型号可以为202QRC。本实施例中的智能燃气表抗干扰计量系统还包括无线模块27和闪存模块26。无线模块27与MCU25电连接并与燃气后台服务器通信连接。闪存模块26连接MCU25。本实施例中，闪存模块26的型号可以为AT25DF041B。无线模块27包括全网通模块，全网通模块的型号可以为NB86-G。The photosensitive module 24 includes a photosensitive diode, and the model of the photosensitive diode may be PT204B. The light emitting module 23 includes a light emitting diode, and the model of the light emitting diode may be 202QRC. The anti-interference metering system for the smart gas meter in this embodiment further includes a wireless module 27 and a flash memory module 26. The wireless module 27 is electrically connected to the MCU 25 and is in communication connection with the gas background server. The flash memory module 26 is connected to the MCU 25. In this embodiment, the model of the flash memory module 26 may be AT25DF041B. The wireless module 27 includes a full Netcom module, and the model of the full Netcom module may be NB86-G.
本申请通过转盘、发光模块、感光模块和MCU的配合，为非接触式的光感计数提供了硬件基础，可靠性高，并可杜绝强磁干扰，且成本低。壳体的封闭式设计可杜绝外部强光的干扰，提高测量的精确度。显示器用于MCU计算获得的燃气的计量信息的显示。Through the cooperation of the turntable, the light emitting module, the photosensitive module, and the MCU, this application provides a hardware basis for non-contact light sensing counting, with high reliability, preventing strong magnetic interference, and low cost. The closed design of the shell can prevent the interference of strong external light and improve the accuracy of measurement. The display is used to display the gas metering information calculated by the MCU.

Claims (9)

  1. 一种智能燃气表抗干扰计量系统，包括壳体、输出设备以及设置于所述壳体内的转盘、发光模块、感光模块和MCU；所述转盘配置为通过转轴与机械燃气表的计数器的传动轴同轴传动连接；所述转盘上形成有透光孔，所述发光模块和所述感光模块分别设置于所述转盘的两侧且所述发光模块和所述感光模块同轴设置，所述透光孔可随所述转盘旋转至所述发光模块和所述感光模块之间；所述发光模块和所述感光模块分别与所述MCU电连接；所述输出设备连接至所述MCU。An anti-interference metering system for a smart gas meter, comprising a casing, an output device, a turntable, a light-emitting module, a photosensitive module and an MCU arranged in the casing; the turntable is configured as a transmission shaft passing through a rotating shaft and a counter of a mechanical gas meter Coaxial transmission connection; a light-transmitting hole is formed on the turntable, the light-emitting module and the photosensitive module are respectively arranged on both sides of the turntable, and the light-emitting module and the photosensitive module are arranged coaxially, the transparent The light hole can rotate with the turntable to between the light-emitting module and the light-sensing module; the light-emitting module and the light-sensing module are respectively electrically connected to the MCU; the output device is connected to the MCU.
  2. 根据权利要求1所述的智能燃气表抗干扰计量系统，还包括无线模块，所述无线模块与所述MCU电连接。The anti-interference metering system for a smart gas meter according to claim 1, further comprising a wireless module, and the wireless module is electrically connected to the MCU.
  3. 根据权利要求2所述的智能燃气表抗干扰计量系统，其中，所述无线模块配置为与燃气后台服务器通信连接。The anti-interference metering system for a smart gas meter according to claim 2, wherein the wireless module is configured to communicate with a gas background server.
  4. 根据权利要求2或3所述的智能燃气表抗干扰计量系统，还包括闪存模块，所述闪存模块连接所述MCU。The anti-interference metering system for a smart gas meter according to claim 2 or 3, further comprising a flash memory module connected to the MCU.
  5. 根据权利要求1至4任一项所述的智能燃气表抗干扰计量系统，其中，所述输出设备包括显示器，所述显示器固定于所述壳体外并与所述MCU电连接。The anti-interference metering system for a smart gas meter according to any one of claims 1 to 4, wherein the output device comprises a display, and the display is fixed outside the housing and electrically connected to the MCU.
  6. 根据权利要求1至5任一项所述的智能燃气表抗干扰计量系统，其中，所述转轴的第一端垂直固定于所述转盘的中部，所述转轴的第二端配置为与所述机械燃气表的计数器的传动轴同轴固定连接。The anti-interference metering system for a smart gas meter according to any one of claims 1 to 5, wherein the first end of the rotating shaft is vertically fixed to the middle of the turntable, and the second end of the rotating shaft is configured to be connected to the The drive shaft of the counter of the mechanical gas meter is coaxially fixedly connected.
  7. 根据权利要求1至6任一项所述的智能燃气表抗干扰计量系统，其中，所述感光模块包括光敏二极管，所述光敏二极管的型号为PT204B。The anti-interference metering system for a smart gas meter according to any one of claims 1 to 6, wherein the photosensitive module comprises a photosensitive diode, and the model of the photosensitive diode is PT204B.
  8. 根据权利要求1至7任一项所述的智能燃气表抗干扰计量系统，其中，所述发光模块包括发光二极管，所述发光二极管的型号为202QRC。The anti-interference metering system for a smart gas meter according to any one of claims 1 to 7, wherein the light emitting module comprises a light emitting diode, and the model of the light emitting diode is 202QRC.
  9. 根据权利要求2至4任一项所述的智能燃气表抗干扰计量系统，其中，所述无线模块包括全网通模块，所述全网通模块的型号为NB86-G。The anti-interference metering system for a smart gas meter according to any one of claims 2 to 4, wherein the wireless module includes a full Netcom module, and the model of the full Netcom module is NB86-G.
PCT/CN2020/081140 2019-04-01 2020-03-25 Intelligent gas meter anti-interference metering system WO2020200009A1 (en)

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CN201910257154.1A CN109883500A (en) 2019-04-01 2019-04-01 The anti-interference metering system of intelligent gas meter
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