Based On Ultrasonic Measuring Wind Speed And Direction Of Research And Implementation

With the increasing population over the world,the world’s energy demand will becomeincreasingly serious,or demand for two times to the middle of21stcentury.We can know theimportance of energy,all life activities rely on energy and carbon cycle.But some energy is toobad for the environment,which changes the atmospheric thermal banlance and leads to globalwarming.It caused varying degrees of threat for our normal living activities.So we have toexplore renewable energy,such as wind,solar,etc.So measuring wind is particularlyimportant.The traditional anemometer accuracy can not meet the requirements,so we putforward the ultrasonic anemometer,which measurement accuracy is greatly improved.This paper proposed a design method of ultrasonic anemometer based on STM32microcontroller.According to the principle of ultrasonic wind speed measurement and timedifference method,we deduced the calculation formula of two-dimensional ultrasonic windspeed of a v-shaped structure.For hardware circuit,describes the ultrasonic launching LCoscillation frequency selective circuit,signal amplification circuit,second-order activelow-pass filter,and the key technology of active full-wave rectifier filter.And theimplementation of the process and the corresponding circuit diagram is given and theverification results.The circuit on the software ensured the normal operation of the system,and blended in AR autoregressive model filter algorithm.At the same time, the temperature onthe influence of wind speed and the fluctuating wind field is studied.Application experimentresults show that the dynamic adaptive ability is strong,and strong anti-interferenceability.The system with intelligent algorithm can achieve high precision measurement of windspeed, which has high reference and practical value.