NETLab: An Online Laboratory Management System

Online hardware-based educational laboratories are increasingly being deployed in traditional on-campus as well as Web-based distance-learning courses around the world. An online laboratory generally will consist of several hardware-based remote experiments. However, one particular experiment can be performed at a time by an individual student or a group of students which require a careful scheduling of the experiments. For the proper implementation of an online laboratory an efficient laboratory management system (LMS) is thus essential. Also for an online laboratory, the students need to fully understand the experimental system setup and feel comfortable as in an actual laboratory environment which, however, can be effectively done by adding suitable videos and animations etc. Besides, the students should be able to run the remote experiments, extract, save and analyze the data and submit laboratory reports online. The front end of the laboratory management system should be made browser-based so that one can use the laboratory facility from anywhere. Also, for the teachers, the laboratory management system should include an online evaluation for the quiz/viva-voce, checking experimental data, grading of submitted laboratory reports and feedback for the students. In this paper, we describe the design and prototype implementation of an online laboratory management system (for use with shared hardware-based remote laboratory resources) which may be employed for running internet-based online laboratory courses for geographically dispersed Institutions.

Fully online courses and degree programs are popular with students. These courses should provide the rigor and value of traditional learning in a face-to-face classroom to ensure mastery of concepts and learning objectives. This research expands previous work to investigate the effectiveness of online laboratory exercises in enhancing student understanding of core concepts taught in fully online introductory astronomy, physics, and biology courses. Identical classes, with or without an online laboratory, were compared to determine gains in content mastery. A Likert-style survey was also used to quantify student perception of the laboratory component for those courses. Results indicated astronomy and physics students in online laboratory courses showed significant gains in mastery of learning outcomes whereas biology students in online courses showed more mixed results. Further, surveys indicated student perceptions strongly support the belief that the labs helped to learn the course material and labs were an effective “hands-on” experience, directly contributing to student satisfaction in all disciplines studied.

Remote laboratory system has been used in engineering education over a decade. To offer a collaborative learning platform for students’ learning, a Wiki-based remote laboratory platform was developed successfully. The effectiveness of the collaborative learning platform was verified by implementing a new remote PID (proportional–integral–derivative) controller experiment based on the Wiki-based remote laboratory platform. This remote experiment aims to offer students hands-on experience to demonstrate the characteristics of proportional, proportional–integral, proportional–derivative and PID controllers and visualize the process of remote tuning. This paper presents the integration of a new remote experiment into an existing mechanical engineering course at the University of Houston. With the help of this remote experiment, students can study the control knowledge actively instead of passively. Moreover, the systematic integration of the Wiki-based remote laboratory platform into laboratory courses reinforces the delivery of content to students with dissimilar learning styles, thus improving students’ success.

This paper describes a practical case study on the benefits and feasibility of a virtual laboratory as a part of chemistry laboratory exercises. Three different objectives that must fit together to create an efficient Virtual Reality (VR) learning experience were found: relevant information content, learning design, and technical feasibility. To achieve these multidisciplinary goals, a simple framework for designing VR learning materials was created. A 360-VR version of a chemistry laboratory exercise was designed and created following this framework. Data on its effectiveness was collected on a laboratory course with over 150 first-year chemical engineering students. The students completed the same laboratory exercise both as a virtual laboratory and in a real student laboratory. In the student feedback, students clearly stated that virtual laboratories cannot replace the experience in a real laboratory, and that the virtual laboratory exercises did not directly increase student motivation. Nevertheless, students showed a very positive attitude towards virtual learning materials and suggested including even more activating materials such as quizzes and interactive videos in the learning materials. Only a few students reported any downsides related to the virtual laboratory exercise. Overall, it was shown that our design principles work in practice as the students reported several real benefits when they completed a virtual laboratory exercise before the real-life laboratory exercise. These benefits included learning the correct way that the laboratory exercise proceeds and how to perform certain tasks correctly.

Java-Based Framework for Remote Access to Laboratory Experiments

The rapid transition to remote teaching in the spring of 2020 posed particular challenges for laboratory courses, which often involve students working hands-on with equipment in collaborative environments. Replicating in-person experiments was especially challenging for advanced lab courses that utilize specialized apparatus, which could not be accessed by students at home. However, physics lab instructors employed a variety of creative strategies to overcome these barriers and provide students access to lab-like learning in a remote setting. We report on one advanced lab course that used the transition to remote teaching to completely redefine the course goals and transition from traditional prescriptive labs to more open-ended projects. We conduct a case study analysis, triangulating among several data sources-survey responses and interviews from both instructor and students-to construct an in-depth understanding of the remote course and how students experienced it. Although we cannot necessarily generalize the results of this analysis to the entire student experience in the course due to the student response rate, the feedback that the course did receive from both students and the instructor was overwhelmingly positive, and the instructors are planning to retain the open-ended projects when the course returns to an in-person format. We find that the new open-ended projects afforded students opportunities to make decisions and think deeply about their experiments, which students report as contributing to their enjoyment and satisfaction with the course. Students had mixed group work experiences, with some describing positive and meaningful interactions and others describing group work as a source of frustration and stress. Additionally, some students missed being able to work hands-on with equipment, and some reported a high workload that made the course stressful. We discuss these student experiences and provide implications for both in-person and remote lab courses.

Remote experiments have been frequently used as an effective educational tool by various academic institutions over the last few years. This paper aims to define and illustrate some key features of a particular implementation of an online laboratory management system. More than anything, it focuses on the process of creating and testing a controller and explaining existing approaches provided by this specific online laboratory. Since the system offers a variety of real devices and simulation environments, during the development arose a need to build a generalized and user-friendly way of creating control algorithms. Teachers and system administrators are able to define robust structures, which students can later use to test their solution without any risk to the devices or the system itself.

For enhanced education at the level of University courses such as those in biology or biotechnology, one of the key elements is the need of time and expertise to allow the student to familiarize laboratory techniques in par with regular theory. The Sakshat Amrita virtual biotechnology lab project focusing on virtualizing wet-lab techniques and integrating the learning experience has added a new dimension to the regular teaching courses at the University. Establishing virtual labs requires both domain knowledge and virtualizing skills via programming, animation and device-based feedback. Challenges in the biotechnology sector in setting up a laboratory that integrates both the feel and phenomenon includes the medley of multiple techniques. This paper reports one such cost-effective process used in virtualizing a real biotechnology lab at the University-level. The major challenge in setting up an effective knowledge dissemination for laboratory courses was not only the scientific approach of biotechnology, but included the virtualization aspects such as usage/design scalability, deliverability efficiency, network connectivity issues, security and speed of adaptability to incorporate and update changes into existing experiments. This paper also discusses an issue-specific case-study of a functional virtual lab in biotechnology and its many issues and challenges.

A new remote laboratory system for learning hardware design and experiment of digital circuit has been developed. It employs shared resources and an e-learning system based on the top-down method specializing in the logic circuit design and featuring a quick acquisition of the hardware-description-language-based design skill. The wide use of the Internet motivated us to develop seamless remote and actual hardware laboratories for hardware design laboratory course, and for students to learn the digital circuit design by themselves. The proposed remote laboratory utilizes actual hardware and actual measurement tools in a time-sharing fashion. The combinatorial use of FPGA/PC connected test hardware and PC-based measurement equipments has made it possible to develop a remote multi-user and time-sharing hardware experiment system. As all students are equipped with high-performance Laptop PCs, CPU intensive development tasks can be performed by each student's client PC in a rich-client environment. The prototype the remote-laboratory and self e-learning system are under-construction, and will be used for the third grade CS students from year 2005

Students and instructors bring varying levels of experience and expectations to online learning. This became even more apparent in March 2020 when the pandemic disrupted face-to-face instruction and required rapid conversion to remote teaching. In this study, mixed methods were used to understand how students perceived these instructional changes and to examine the effects of remote learning on their approach to subsequent coursework and faculty interactions. First, open-ended survey data collected from students enrolled in a summer 2020 nonmajors asynchronous laboratory course were analyzed to learn more about students’ spring 2020 remote learning experiences. The questions directly addressed remote learning experiences and emphasized study strategies learned, faculty communication modes, and students’ perceived ability at taking online courses. Second, four consecutive years of survey data—including both Likert-type scale surveys and open-ended questions—were analyzed to identify core themes and to measure variations between cohorts. These data present a unique opportunity in that they allow for critical analyses and document differences in online learning experiences for student cohorts pre- (2017–2019) and post- (2020) the COVID-19 disruption. The findings from the survey data can be used to inform how faculty may better focus their teaching efforts while promoting student learning and engagement during a time of continued teaching disruption and uncertainty. The overall results of this study are applicable to all levels of chemistry courses. In addition, the established nonmajors online laboratory course model presented in this study provides a strong example for others who are developing new online or hybrid chemistry courses.

The use of remote laboratories in courses at university level has been reported in literature numerous times since the mid 90â??s. In this article focus is on activities carried out by teachers and students, at the Upper Secondary School Level, using the remote laboratory VISIR (Virtual Instrument Systems in Reality). The Upper Secondary School, Katedralskolan in Lund, Sweden, cooperate with Blekinge Institute of Technology, Sweden, in a project that concerns the introduction of remote laboratory environment suitable for Upper Secondary School science courses. A remote laboratory in electronics has been introduced and is used as a complement to the traditional workbench in the hands-on laboratory. Significant results from the project are; 1) the great interest shown by the students for the remote experiments, 2) the students appreciation for the fact that it was not simulations but actual real experiments, 3) the remote laboratory is easy to implement for use by both teachers and students and 4) it can be used simultaneously by many students.

Laboratory courses play a pivotal role in higher education, and with emerging technologies transforming instructional practices, virtual laboratories have become an effective supplement to traditional, face-to-face settings. This paper presents a Unity3D-based virtual production line laboratory platform developed under the ADDIE instructional design model (Analysis, Design, Development, Implementation, Evaluation). The physical assembly line was replicated in a virtual environment and deployed via WebGL on a custom website, enabling students to engage in experimental learning at any time.Additionally,On the student client, we have visualised PLC programs and designed an image recognition module that enables students to visually verify the correctness of their PLC programs. Implementation with second-year undergraduates demonstrated positive impacts on academic performance.

This study is an implementation of information technology for education, aimed to produce a model of online lab course with a collaborative environment using a desktop sharing application. In the digital electronics lab course, participants were divided into the groups, each of them consists of three members. A desktop sharing application was used to the digital circuit simulator as an offline program that can be accessed online. The results show that the application can be used to introduce a collaborative environment in an online lab course. The application was possible to make an offline program such of a digital circuit simulator that can be accessed online by each member of the groups. This model has got a positive response from the participants of digital electronics lab course.

With the development of mobile technologies, mobile applications are increasingly designed and developed. In the field of science, technology, engineering, and mathematics (STEM) education, the idea of using mobile devices for teaching and learning has gradually gained popularity and gained in-depth research. Owing to the advantages of convenience, portability and excellent interactive abilities, mobile devices are a good choice for accessing remote laboratories. In propose of promoting the massive online experimentation of control education, a mobile application with framework based on React-Native is implemented in this paper. The overall remote laboratory architecture adopts front-end and back-end separation scheme, which benefits the mobile application focusing on the construction of front-end interface and user experience. Various functional modules and technologies are applied in the mobile application, allowing users to access various experiment test rigs in the remote laboratory with intuitive experimental immersion. Moreover, a complete laboratory management system to manage the massive users from different universities has also been integrated into the mobile application. At the end, a remote networked control experiment has been conducted to prove the practicability of the mobile application.

An Evaluation Model for Functionality Analysis of Remote Laboratories and Simulations in Engineering Education