采用LPC 55S69的CO激光气体检测无线传输系统的研制  

Design of laser CO gas detection wireless transmission system based on LPC55S6

作　　者：连厚泉 王彪[1] 戴童欣 黄硕 俞泳波 程林祥 LIAN Houquan;WANG Biao;DAI Tongxin;HUANG Shuo;YU Yongbo;CHENG Linxiang(Changchun Institute of Optics,Fine Mechanics and Physics,Chinese Academy of Sciences,Changchun 130033,China;University of Chinese Academy of Sciences,Beijing 100049;University of Science and Technology of China,Hefei 230026,China)

机构地区：[1]中国科学院长春光学精密机械与物理研究所,长春130033 [2]中国科学院大学,北京100049 [3]中国科学技术大学,合肥230026

出　　处：《激光杂志》2021年第3期42-46,共5页Laser Journal

基　　金：国家重大科研仪器设备研制项目(No.61727822)。

摘　　要：CO气体作为一种还原剂在工业冶金等场景中广泛应用,对于CO的检测在工业生产、大气监测、中毒预警中是十分重要的。TDLAS技术能够高效准确地检测特定气体浓度,基于TDLAS技术的CO气体检测相较于传统检测方法优势明显。本设计采用LPC55S69作为主控,VCSEL激光器作为核心光源实现TDLAS的CO气体检测。随着检测环境越加复杂,基于现场检测的方法局限性越来越大,本设计还根据需要,设计了检测数据无线加密传输方式。LPC55S69采用128位AES-ECB算法实现数据加密,并通过WIFI(ESP8266)将数据上传至PC端,PC端进行解密后得到待测气体浓度信息。该方法实现的远程数据加密传输大大扩宽了TDLAS型CO气体检测的应用范围并且保证了数据传输的安全性。As a reducing agent,CO gas is widely used in industrial metallurgy and other scenes. In industrial production,atmospheric monitoring and poisoning early warning,the detection of CO is essential. TDLAS technology can efficiently and accurately detect specific gas concentration. CO detection based on TDLAS has apparent advantages over other traditional detection methods. In this design,LPC55S69 is used as the central control,and VCSEL is used as the core light source to realize CO gas detection of TDLAS. As the detection environment becomes complex,the method’s limitations based on field detection become larger. The design also designs the wireless encryption transmission mode of the detection data according to the needs. LPC55S69 adopts a 128-bit AES-ECB algorithm to encrypt data and upload data to PC through Wi-Fi( ESP8266). After decryption,the PC can get the gas information to be measured. Use remote data encryption transmission technology by this method dramatically broadens the application range of TDLAS CO gas detection. Besides,it also made the transmission more secure.

关 键 词：LPC55S69 TDLAS VCSEL ESP8266 AES加密 

分 类 号：TN271.[电子电信—物理电子学]