亚洲精品无码AV专区最新_亚洲 欧美日韩 综合 国产_免费无码又黄又爽又刺激_YYYY111111少妇影院

Home  /  News  /  Goldcard smart as the main drafting party helped with the release of the world's first NB-IoT diaphragm gas meter standards
Goldcard smart as the main drafting party helped with the release of the world's first NB-IoT diaphragm gas meter standards
Time:2018-11-21 17:37:44

Recently, the standard "Diaphragm gas meter with NB-IoT wireless remote-reading" was released by Zhejiang provincial brand building association. The standard was developed by Zhejiang institute of metrology, and Goldcard was one of the main drafting parties.


Drafted based on Chinese national standard GB/T 6968-6968, and take references from the most advanced and universallyrecognized European standard EN 1359:2017, it has been considered as the world's first NB - IoT diaphragm gas meter standard, meanwhile, reached the leading level in the international gas meter industry.As the first national single communication technology basedgas application standard, it has also opened a new situation for the standardization, rationalization and standardization of smart gas metering development.




1.jpg


After long term development and improvement, as well as tests and pilot run, Goldcard NB – IoT smart gas meter is completely comply with this standard in all aspects including technology, manufacturing, quality and service level etc.. In the future, Goldcard will continue to improve innovation and R&D. In the era of Internet of things, we will help gas companies to achieve breakthroughs in business upgrading and complete perfect transformation.



2.jpg


The standard "Diaphragm gas meter with NB-IoT wireless remote-reading" follows the EU standard, focusing on detailed terms on the measurement features, technical requirements, and test methods of NB - IoT diaphragm gas meter, it took reference from the terms of the EU standards and clearly defined the outline of the standard, meanwhile increased relevant requirement on the key component quality control, manufacturing capacity, service ability etc. of the NB - IoT diaphragm gas meter. Through indexes and data, this standard reflects the data transmission security issues, power consumption problems, network coverage problem and large volume of meters’ access and connection issues, that can be solved by adopting NB - IoT communication technology.。


 3.jpg


四虎影院在线观看| 永久免费看mv网站入口亚洲 | 欧美饥渴熟妇高潮喷水水| 在线中文字幕乱码英文字幕正常| 国产蝌蚪视频在线观看| 免费无码一区二区三区a片百度| 18禁美女裸体无遮挡网站| 国精品无码一区二区三区在线| 熟女人妻在线视频| 中文字幕人成无码人妻综合社区| 日韩av无码中文无码电影| www污污污抽搐喷潮com| 亚洲欧美国产精品无码中文字| 内射口爆少妇麻豆| 西西人体44www大胆无码| 欧洲美女粗暴牲交免费观看| 免费无码一区二区三区蜜桃| 免费视频欧美无人区码| 麻豆aⅴ精品无码一区二区| 18禁黄久久久aaa片| 国产精品久久久久久| 亚洲午夜久久久影院伊人| 欧美三根一起进三p| 亚洲色成人网站www永久| 久久久久久av无码免费网站下载 | 国产亚洲成av人片在线观看| 中国女人内谢69xxxx视频| 胯下粗长挺进人妻体内电影| 国产成人无码av一区二区| 久久国语露脸国产精品电影| 人妻少妇无码精品视频区| 日韩一区二区三区射精| 亚洲综合无码无在线观看| 欧美最猛性xxxx| 四虎影库在线永久影院免费观看| 中文乱码人妻系列一区二区 | 中文无码一区二区不卡av| 成人午夜福利视频后入| 日韩内射美女人妻一区二区三区| 少妇被又大又粗又爽毛片| 日韩精品无码一区二区中文字幕|