国产欧美精品一区二区,中文字幕专区在线亚洲,国产精品美女网站在线观看,艾秋果冻传媒2021精品,在线免费一区二区,久久久久久青草大香综合精品,日韩美aaa特级毛片,欧美成人精品午夜免费影视

In order to solve a series of problems such as the artificial meter reading system with low reliability,inconvenient for reading-meter and difficulty in users"pay cost,it is put forward a design scheme based on LoRa modulation technology of wireless intelligent water meter system:The project treating LoRa modulation technology as the core,adopt the self-organizing networks" design of the star network and chain network,which build a complicatedly intelligent water meter system with the long- distance communication,low power,resisting different interfering source.It is emphasized that software and hardware design project of the smart system、self-define network protocols in application layer、the software design project about data acquisition and remote management.In the end of the project,It is analysed the whole system"s test property, the result of which indicates that the intelligent water meter system based on LoRa has an obvious advantages in the communication distance and power consumption.These advantages make it possible for LoRa wireless communication technique construct large-scale self-organization network in the furture.And the system has a broad application prospect in the filed of automatic remote meter reading.