ABSTRACT
Objective A correlation method for evaluating operation quality of air conditioning systems is proposed , based on the outdoor and the indoor temperature history data of the terminal user from internet of things for the central air conditioning system , for lacking efficient way to evaluate . Methods A methematical model is set up based on the variance ratio of the data of the indoor and out temperture obtained from IOT within a given time interval , and theoretically induce the possibility and correctness to employ these index to evaluate the operation quality of the central air conditioning system . Results A typical central air conditioning system of a large sacal hospital is analyzed , the results shows the variance ratio of the indoor and outdoor temperature can reflect the capacity of the central air conditioning system for controlling the indoor temperature . Conclusion The method proposed for evaluating the op-eration quality of the air conditioning system based on IOT system is theotically correct and practically efficient , and can be employed to evaluate the operation quality of the air conditioning system of large scale medical buildings .
ABSTRACT
Objective:To design the mode of supervision, forwarn and communication system in barrier enviroment of laboratory animal. Methods and Results:Distribution inspect system of industrial computer center was used for live monitoring,displaying,reserving, printing temperature humidity,pressure,difference and ammonia density,according to necessity.The upper and low limit of parameter was set up according to national standard of laboratory animal,if parameter surpass the limit,it will warn the people on duty in multiple spots.Working and animal illumination were established respectively on the basis of illuminace light period of standard,the switch of working illumination was controlled by the people,but the later was controlled, automatically and slowly in order to disinterfere with physiology activity of animal.The mode of moniter add video together with multiple pickup camera in cable television were used,which binded wirh the intellectual industral control group.The communication system was designed using miniature program control changer and terminal telephone, which joined the unit inner telephone to communicate with outside. The double and stereophonic was used to install background music in this enviroment,which was timely played with suitable volume. Conclusion:This system provided the method for the administration of laboratory animal standardization?mathematics and informatics.