摘要
浮空器在飞行时需要借助排气阀的开关,进行囊体压力和浮力调节,并通过采集安装在排气阀上的温度、压差等传感器的数据,监控飞行状态;现有排气阀的供电和控制信号,传感器的采集信号,一般通过安装在囊体上的线缆传输,随着浮空器体积的增加,排气阀数量的增多,使得现有通过线缆传输的方式,出现应用上的限制;对LoRa远距离无线通信技术进行研究,提出了基于物联网技术的浮空器远置终端设计,对分布在浮空器上的传感器数据进行无线传输并无线控制排气阀开关,设计硬件电路,通过软件进行仿真和调制,保证传输可靠性;从而验证了在浮空器上使用物联网技术采集并传输传感器数据的可行性,为浮空器上数据的采集传输和压差控制,提供了新的思路。
The aerostat needs to adjust the pressure and buoyancy of the capsule body with the help of the switch of the exhaust valve during flight,and monitor the flight status by collecting data from the temperature,pressure-drop and other sensors installed on the exhaust valve.At present,the power supply and control signals of exhaust valve and the acquisition signals of sensors are generally transmitted through the cable installed on the capsule.With the increase of the volume of aerostat and the number of exhaust valves,the existing transmission mode through the cable is limited in application.Based on the research of LoRa long-distance wireless communication technology,the design of remote terminal of aerostat based on Internet of things technology is proposed.The sensor data distributed on the aerostat is transmitted wirelessly and the exhaust valve switch is controlled wirelessly.The hardware circuit is designed,and the transmission reliability is guaranteed by software simulation and modulation.This verifies the feasibility of using the Internet of Things technology to collect and transmit sensor data on the aerostat,and provides a new idea for data collection and transmission and pressure difference control on the aerostat.
作者
秦慧娴
苗景刚
郝勇
张晓荣
袁明昱
QIN Huixian;MIAO Jinggang;HAO Yong;ZHANG Xiaorong;YUAN Mingyu(Aerospace Information Research Institute,CAS,Beijing 100094,China;School of Optoelectronics,University of Chinese Academy of Sciences,Beijing 100049,China)
出处
《计算机测量与控制》
2021年第12期156-160,共5页
Computer Measurement &Control
基金
国家自然科学基金项目(61733017)。
