采用LTE-Cat.1通信的物联网高精度高度计设计OACSTPCD

In the traditional remote measurement technology based on the Internet of Things,there are many problems such as the meas-urement accuracy and sensor cost cannot be balanced,the real-time data update is not good,and the communication cost is too high.Based on this problem,a data acquisition scheme is proposed,which uses software algorithms to achieve high precision.At the same time,LTE-Cat-1 is used as the data communication method to transmit data to remote cloud servers and terminals.The program is applied to the re-mote altitude measurement.After rigorous calculation and test verification,the absolute error of the measurement is less than 5 meters,the relative error is less than 0.5％,the stability of data transmission is high,and the real-time transmission can be controlled to less than 1 second.Internally,the cost of communication is taken into account at the same time.When the data upload frequency reaches 1 time/s,the data flow can be controlled at 600 KB/h,which meets the requirements of high precision,low cost,high real-time performance and stability of the system.