Green University Using Cloud Based Internet of Things Model for Energy Saving

The research was conducted to study and develop a Green University using Cloud based Internet of Things model for energy saving. The aims of this study were 1) to study and design 2) to evaluate a model of Green University using Cloud based Internet of Things for energy saving. There are two phases of the research method. The first phase included the model design: 1) to study, analyze, and synthesize the contents, 2) to develop a process model of Green University using Cloud based Internet of Things, 3) to present the constructed model, and 4) to conclude the results. The second phase is referred to an evaluation of the model. Nine experts from Green University’s Electrical, Information Technology, and university management team were included in the research as sample group. Then, the data were analyzed by standard deviations and means. The model development process has 3 components that include 10 procedures. This model helps to energy saving. As the overall model was shown at a very good level, the experts agreed.


Introduction
Energy is an important basic factor for the industry, agriculture, and education developments because energy is key to proceed with all kinds of works in order to comply with the convenient routines of human. Thus, world energy consumption has increased by approximately 7% each year (Ministry of Energy, n.d.), and the rate expected to rise continuously in the future. However, some types of existing energy are limited such as energy from natural fuel. That is why it is necessary for everyone to conserve, and use energy sufficiently, especially the higher education level which is mandatory to launch the campaign to educate and encourage people to realize how valuable energy and environment are. The previously mentioned campaign then creates a policy and practices that are crucial for life and the academy's fellowship that are altogether called 'Green University' (Green-Campus Office, 2016).
Green University is posited to be a university that encourages, develops, restores, conserves, and integrates knowledge and activities that are related to natural resources, energy and environment conservation, self-reliance improvement on the basis of ecology and people's health balance, research and learning systems development, and different activities that use the Internet of Things: IoT in order to comply with the energy saving (Pibul Songkram Rajabhat University, 2013) Internet of Things: IoT is the 21 st century technology that can communicate, command, and control the operation of electronic devices (Prapaporn, 2016) via an internet network system. Furthermore, IoT is a tool for data processing via radio frequency, sensor technology, smart technology and other kinds of technologies (Hua et al., 2014). After IoT is used, it is common that most processed data will be stored and analyzed on 'Cloud' (Pramanik et al., 2018).
Cloud Computing or so called 'Cloud' is a type of internet-based computing that uses a variety of existing resources on internet networks such as processing and storage. Computer users may use cloud computing via 'Internet Service Provider (ISP)' that supplies different services (Office of the National Economic and Social Development Board, 2011). The service provider provides resources for users who need that service, and pay the service fees according to their actual usage. Moreover, cloud computing specializes in the flexible expansion which is referred to the ability to adjust the size to meet the requirement of users, and the ability to allocate the ies.ccsenet. resources. cloud user displayed a data on ser According based Inte addition, th for the mo

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The Second Phase
The model's appropriateness evaluation was done by nine experts as presented in Table 1. And, they agreed with the value of overall suitable on the list that had great results ( = 4.58, S.D. = 0.03). The appropriateness of a Green University using Cloud based Internet of Things could be utilized in the practical system was ranked as 'very good' ( = 4.78, S.D. = 0.44). As the overall, value of the components of a model of Green University using Cloud based Internet of Things could satisfy the needs, was completed. And, the function of the model was accurate to the aims of this research ranked as very good ( = 4.67, S.D. = 0.50). The relations between value of each component towards one another was ranked as very good ( = 4.56, S.D. = 0.53), the sequence arrangement of components in a model of Green University using Cloud based Internet of Things was easy to understand and appropriate was ranked as very good ( = 4.53, S.D. = 0.53), and the system principles that were used as the basis to construct a Green University using Cloud based Internet of Things Model was also ranked as very good ( = 4.53, S.D. = 0.53).

Discussion
The Model of Green University has developed using cloud-based and Internet of Things for Energy Conservation. The model evaluated by the value of overall suitable on the list that had great results ( = 4.55, SD = 0.49). Wang's (2013) study, which implied that Green University was effective and beneficial for energy saving, had complied with the design development. Moreover, the Internet of Things is technology in the 21 st century that can support life, communicate, command, and control the operation of electronic devices (Prapaporn, 2016) via an internet network system that was relevant to Sharma and Suryakanthi (2016). In addition, the Internet of Things can be shared with cloud computing which a system for storing data sent from sensors through network Internet and process data by processing data and displayed as the application of a website that allows users to use it via the website's browser and store all the input data on servers (Akarim & Noppadon, 2015;Sathaporn & Namon, 2015) to control the energy consumption.