Automatic Monitoring And Control System Of Tobacco Leaf Aging Environment

The tobacco leaf is the most important raw material in the production of cigarette industry,in order to improve the combustion characteristics and the smoking experience,need to reconcile its chemical composition,which relates to the concept of tobacco aging.Tobacco aging is an important link in the process of cigarette production,to meet the requirements of the process conditions,time-consuming short months,the aging process of many years.At the same time in the aging period,the need for regular tobacco insecticidal treatment,in order to reduce the loss rate of tobacco leaves during aging.In the continuous development of the level of industrial automation trend,the automatic monitoring and control system of tobacco leaf aging environment more and more cigarette production enterprises,applied to tobacco warehouse maintenance work,is of great significance to improve the development quality of aging tobacco and cigarette industry.This design mainly has the following innovation:Innovation point 1:the temperature and humidity sensors installed in the air duct are moved to the interior of the reservoir,and the single point acquisition is replaced by multi-point sampling to ensure the accuracy of the measurement results.Innovation point 2:the signal control method of the air valve actuator is changed from digital quantity to analog quantity,and the opening of the air valve can be accurately controlled,and the problem of the system alarm caused by the switch of the air valve is not solved.Innovation point 3:the electric energy data is displayed in the monitoring interface,and the current running condition of the equipment is obtained by observing the running current,so as to solve the problem that the remote information is inaccurate due to equipment failure.This project belongs to Xiamen tobacco industrial co.,LTD Dongfu storage center three projects,a total of 12 warehouse construction of tobacco leaf aging,equipped with air-conditioning,dehumidifier,exhaust fan and other equipment,to achieve the regulation of environmental conditions in space,and the library is installed in the temperature and humidity sensor is used to collect environmental parameters as well as for the air valve control air volume the size of the actuator,using SIEMENS PLC S7-1500 controller,the central management station to complete the remote monitoring and main equipment for environmental management of the work.This article mainly from the selection of hardware and network structures and human-computer interface design three aspects of tobacco during the aging process,the construction of intelligent warehouse management system of automatic monitoring and control function of the environment.