Small Intergrated Internet Station Of Things Weather Station

Meteorological elements such as ambient temperature,humidity,ultraviolet ray,atmospheric pressure,wind speed,wind direction,rainfall and air quality are closely related to people’s daily life.They are widely used in meteorological services,scientific research,agricultural production,transportation and other fields.How to obtain accurate meteorological elements in real time plays a very important role in guiding people’s production and life.Entrusted by a company in Hebei Province,we designed and implemented a small weather station system based on Cortex M4 platform processor.It adopts sensor technology,embedded system,digital signal processing technology and Internet of things(IOT)technology to collect and process meteorological parameters such as ambient temperature,humidity,wind speed and direction,atmospheric pressure,ultraviolet,PM1.0,PM2.5,PM10,daily rainfall,rain sense,sky image,GPS positioning information and other meteorological elements in real time,and transmits the data to the cloud server through IOT for further processing.Users can use cloud test tools to remotely monitor the intelligent weather station.To begin with,we designed the hardware of the system.According to the requirements of Party A,we selected the type of each sensor and communication module.Based on the resource requirements of each sensor and module,combining with power consumption and performance,the processor was selected.Then we designed the interface circuit of each part in detail.The power supply scheme adopts dual power supply of solar energy and lithium iron phosphate battery pack,which conforms to the concept of energy conservation and environmental protection.Under the condition of continuous rainy environment without external charging,the weather station can work for more than 120 hours.Furthermore,based on the hardware circuit and the functional requirements of the weather station,we designed the software of each module.Meanwhile,a private communication protocol was developed according to the network communication protocol.Finally,in order to verify the system functions,we tested it with the developed cloud test tools,and the results showed that all performance indexes of the weather station met the technical requirements of Party A.The small weather station system can be applied to multiple big data scenarios such as smart city,smart agriculture,new energy and hydrology by crowdsourcing.