The Design Of Data Acquisition System Of Power Station Based On LoRa

In recent years,electric bicycle has become the fastest growing transportation vehicle in the market,and China’s electric bicycle sales are in the leading position in the world.Electric bicycle uses rechargeable battery as the power source,the battery charge is a concern.This paper designs a data acquisition system based on LoRa.Users can charge their electric bikes by using a mobile payment or swipe payment.The system uses power consumption as the basis for charging,rather than time.The system makes a LAN based on LoRa,so that the weak environment of GPRS in the basement can be used normallyAlthough some of the district has installed electric bicycle coin money supply power station.Traditional power station uses time as a charging basis,charging time is long,high charges for this charge.Fee scale cannot satisfy the needs of customers.In this paper,the electricity consumption of power supply is used as the basis of charging.Traditional power stations use coinage as a method of payment,which is not enough to meet customers today.Some power stations can use mobile payments but the user experience is often poor due to poor GPRS signals in the basement.The power station studied in this paper summarizes the power consumption of power supply and other information through LoRa to the gateway through Ethernet or this GPRS upload server.Users can pay charging charges through alipay or WeChat.The main work and achievements of this paper are as follows:(1)Based on the analysis of the current wireless transmission mode and the actual situation of the project,the wireless transmission mode of the subject is selected.(2)Study LoRa wireless transmission characteristics,according to the application of the project,conduct signal strength test to verify the feasibility of LoRa wireless transmission.(3)This paper studies the principle of electric energy measurement and designs a hardware circuit with low cost energy measurement.(4)Study LoRa software driving principle,according to this topic,design a set of wireless transport LAN based on LoRa.(5)Design a series of experiments to verify LoRa’s data transmission in the actual basement and verify the feasibility of the design scheme.Explore the design of power station data acquisition system,this paper finally adopted LoRa gateway Internet data transmission scheme,solve the poor due to the basement GPRS signal causes payment problems such as failure,using transmission loss model to the feasibility analysis of plan,provide the basis for behind wireless transmission parameters,and design the related experiments verify the scheme.