全黄性_天堂官方_亚洲无吗精品AV九九久久_欧美三级裸露720P_99热这里只有精品9_日本不卡一区二区三区_色婷婷AV一区二区三区之红樱桃_法网伊人_国产精品自在拍在线拍_2019年最新夜间福利视频_香蕉国产_青青草a国产免费观看_2021自拍偷在线精品自拍偷_亚洲中文字幕在线第六区_金8天国欧美高清无码_秋霞网在线观看1_极品av_秦岭神树在线观看_欧美性爽交A片大全_花蝴蝶HD免费高清

On June 1, 2018, the technical team of Jingda Company and relevant leaders and technical personnel of China Telecom Xi'an Branch conducted in-depth discussions and technical exchanges on the current application status of IoT technology in water meter remote meter reading, and shared multiple application cases of IoT water meters. Both parties agreed that the application technology of IoT water meters is becoming mature and has broad prospects.

After the technical exchange meeting, the two parties held an IoT cooperation signing ceremony in a friendly and peaceful atmosphere, and reached a long-term strategic IoT cooperation relationship! The two parties agreed that within 7 years starting from 2018, Hangzhou Jingda Company will purchase no less than 200,000 NB-IOT IoT cards from Xi'an Telecom in batches. After signing the contract, 20,000 NB-IOT IoT cards will be purchased for the first time, and 10,000 NB-IOT IoT cards will be purchased again after half a year, and then purchased in batches as the project progresses. Xi'an Telecom must cooperate with Hangzhou Jingda Company's NB-IOT IoT card purchase needs in real time to promote the implementation of NB-IOT smart water meters.

After the signing ceremony, Jingda’s technical service personnel, together with Xi’an Telecom’s technical personnel, went to the installation site of Jingda’s NB-IOT water meter to conduct communication and valve switching tests.

In surface wells below 3 meters and in basements, on-site tests of the Jingda brand NB-IOT IoT water meters have achieved normal communication and remote control of valves!