Abstract: In view of the difficulty of maintenance and high professional requirement of meteorological station used by governmentalmeteorological department, a design scheme of civil automatic weather station based on Aliyun Internet of things platform is proposed. The system design includes hardware and software. The hardware part includes the core circuit of AM3358 controller, Modbus sensor data acquisition circuit ,4G communication module and so on. The software part includes device side Link kit software development, cloud server side IoT Studio website application UI interface development, background data service development, message flow and so on. All functions of the six-element automatic weather station are implementedin the system, and some practical functions are added, such as sending the message to the mobile phone APP group when a specific weather parameter appears. The practical test shows that it has the advantages of simple maintenance and low cost, which is especially suitable for the observation of meteorological elements in non-meteorological departments such as agricultural production, station and port.

Key words: Aliyun Internet of things, automatic weather station, Modbus, MQTT