基于无线通信的LNG气瓶液位监测系统设计  

Design of LNG Gas Cylinder Liquid Level Monitoring System Based on Wireless Communication

作　　者：佘世刚 赵宇 胡月娥 曹亚运 袁峥峥 She Shigang;Zhao Yu;Hu Yuee;Cao Yayun;Yuan Zhengzheng(School of Mechanical Engineering,Changzhou University,Changzhou 213164,China)

机构地区：[1]常州大学机械工程学院,江苏常州213164

出　　处：《计算机测量与控制》2021年第2期14-19,共6页Computer Measurement &Control

基　　金：国家自然科学基金项目(51775410)。

摘　　要：液化天然气(LNG)是目前公认的一种清洁能源,以LNG为燃料的汽车已投入使用;LNG车载气瓶是LNGV车载燃料汽车动力系统的核心部分,为保证车载气瓶使用过程中的安全性,需实时监控LNG气瓶液位参数,故设计一种基于无线通信的LNG气瓶液位监测系统;系统利用电容式液位传感器对液位对象进行测量,通过无线通信技术将数据进行传输,选用STM32单片机作为中央处理单元,完成对数据的处理与判读,达到LNG车载气瓶液位监测工作要求;经反复验证,系统运行可靠且测量误差不超过1.5%,完全满足LNG气瓶液位监测要求。Liquefied natural gas(LNG)is now recognized as a clean energy source,LNG fuel vehicles have been put into use.LNG vehicle-borne gas cylinder is the core part of LNGV vehicle-borne fuel vehicle power system.in order to ensure the safety of the vehicle-borne gas cylinder in the process of use,it is necessary to monitor the LNG gas cylinder liquid level parameters in real time,so a LNG gas cylinder liquid level monitoring system based on wireless communication is designed.By using the capacitance sensor,the liquid level object is measured and the data is transmitted by wireless communication technology,and the STM32 single chip microcomputer is selected as the central processing unit,complete the processing and interpretation of the data to meet the LNG vehicle gas cylinder level monitoring requirements.After repeated verification,the system runs reliably and the measurement error is not more than 1.5%,which fully meets the requirements of LNG gas cylinder liquid level monitoring.

关 键 词：LNG车载气瓶 电容式液位传感器 无线通信 STM32单片机 

分 类 号：U469.72[机械工程—车辆工程]