# Intelligent Environment Monitoring System for University Laboratories
## 1 Introduction  
Environmental monitoring plays an important role in geography detection, disaster prediction and agriculture. In recent years, researchers have focused on the monitoring system to improve the quality of our daily life, and there have been some literatures in relation to this. In Reference [1], the authors proposed a fiber-optic low-coherent interferometry sensor to measure the ground settlement (GS). The optical interferometry was used to illustrate liquid level changes, reflecting where the GS happened. Thus, the GS information was calculated based on the optical interferometry. To detect pollutants in real-time, the authors of Reference [2] proposed environmental lab-on-a-chip monitoring and focused on future perspectives to overcome monitoring challenges using printing technologies. Considering flood risks in Thailand, the authors studied the livelihood vulnerability in Northeast Thailand [3]. Inefficient monitoring of land and house elevations was shown to be the major factor leading to flood risks. For disaster environments such as flooding, both monitoring data redundancy and limited network transmission capacity were considered together to improve disaster resistance [4]. For agriculture, the groundwater subsidy had significant influence on cropping systems. Therefore, leaching monitoring started in Taiwan 10 years ago, but real-time monitoring was impossible. The authors of Reference [5] developed a data transmission path, named ICT (Information and Communication Technology), which is used to improve the efficiency of data transmission from the field to the databases located in labs. For fluvial monitoring, the authors proposed a microfluidic phosphate sensor to reduce temperature effects [6]. The sensor realizes greaterpower economy, a mean power consumption of 1.8 W. During field testing, the sensor was able to continuously work for 60 days in a chalk stream, illustrating complex relations between phosphate concentration and flow rates. For the present university laboratory management, it is necessary to deploy an environmental monitoring system. Manual inspection [7] can ensure laboratory safety, but this wastes power and time. Compared to manual inspection, a traditional wiring experiment alarm device, such as RS-232, can save more resources [8]. The drawback is that this method is difficult to be generalized due to the restriction of conditions (e.g., wiring environment and transmission distance). Another method, the ZigBee wireless data transmission network [9], is influenced by some conditions such as transmission distance, and circuit-switched data transmission may lead to short message congestion and loss. In addition to this, there is other related research [10], in which the idea of a monitoring system with GPRS communication is proposed but without the realization process. The aforementioned studies do not consider the combination of sensor technology, wireless communications and other important technologies [11; 12]. Moreover, some functions, such as fire prevention and automatic SMS alarm, are not realized at the same time [13; 14]. Since GPRS communication using packet switching technology is able to realize reliable remote wireless communication, this paper proposes an intelligent monitoring system to realize environmental detection in university laboratories. The main purpose of this system is to monitor the laboratory environment data in time and improve the laboratory inspection efficiency. The system consists of a single chip microcomputer, which is the core of this system, sensor function module and GPRS wireless communication, realizing data monitoring and short message warning. Therefore, three features, including front-end data acquisition, data wireless transmission and security alarm, are achieved by the proposed system. The system uses development tools including Keil-uVision4 [15], Protel99 SE, Proteus and a firing machine. The system is programmed using JAVA [16], achieving data detection and remote control using a mobile terminal APP.