On the remote server problem or more about TCP acknowledgments

In recent years, people may disremember to turn off various devices or not be sure open or closed. Predefined scenarios for these people, home comfort and efficiency in the workplace will help a lot. Most people spend time with mobile phones throughout the day. Therefore, the control of smart devices by phones would be an appropriate solution. In this study, it is designed with microcontroller based intelligent building automation system hardware and software to provide energy efficient, security and comfort. The programming of the microcontroller, writing the android application program for the mobile phone and MySQL database software were realized. Microcontroller with GSM shield, it is possible to control the devices connected to the system by an android application automatically and manually by means of the internet connection by the MySQL database on the remote server. It is ensured that all devices are adjusted with a single touch according to predefined scenarios.

Download Full-text

Controlling Multiple Virtual Machines in Computer Classrooms

Acta Universitatis Agriculturae et Silviculturae Mendelianae Brunensis ◽

10.11118/actaun201563020683 ◽

2015 ◽

Vol 63 (2) ◽

pp. 683-691

Author(s):

Petr Zach ◽

Martin Pokorný ◽

Jiří Balej ◽

Michal Šturma

Keyword(s):

Classroom Management ◽

Virtual Machine ◽

Operating Systems ◽

Virtual Machines ◽

Process Automation ◽

Remote Server ◽

Computer Classroom ◽

Computer Classrooms ◽

Software Updates ◽

Process Diagrams

A management of computer classroom is undoubtedly a difficult task for the administrator which has to prepare virtual operating systems for education. It is quite common that lectors need to edit the particular machine during the semester, and that is the case where the main problems can appear. The process of changes deployment is not just very time-consuming but during it a virtual machine inconsistency can appear. The main part of this paper focuses on system process diagrams and its pseudocode. At first, the machine is created on the remote server by lector or administrator. After a proper approval, the machine is able to be deployed. The lector then specifies the details about date, time and destinations of the virtual machine deployment. Once these details are approved, the virtual machine will be automatically deployed at the specified time. The automatic deployment includes also an initial configuration of the virtual machine at remote desktop and its post-install configuration (hostname, MAC address, etc.). Once all steps are completed, the process will be marked as succeed. We present an automatized solution which provides a possibility how to easily manage computer classroom with virtual operating systems. The proposed solution should deliver a greater flexibility, more reliability and faster deployment in comparison with the current solution used in our computer classroom. The proposal is also able to manipulate with already deployed machines for easy changes (e.g. software updates). The main advantage is the improvement of classroom management process automation.

Download Full-text

Design of PC Remote Monitoring System for Standby Generators

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.1039.197 ◽

2014 ◽

Vol 1039 ◽

pp. 197-202

Author(s):

Chuan Hong Zhou ◽

Jin Jie Xiao ◽

Wei Ren

Keyword(s):

Monitoring System ◽

Remote Monitoring ◽

Interface Design ◽

Database Design ◽

Sql Server ◽

Monitoring Device ◽

Remote Monitoring System ◽

Remote Server ◽

Sql Server Database ◽

Low Efficiency

Currently,some problems exist in the process of using standby generators, such as low efficiency,high cost and late service of artificial overhaul and maintenance.In order to overcome these problems, PC remote monitoring system is designed.This paper mainly introduces the structure composition,function,interface design and SQL Server database design of the system.In addition, the function of communication between the PC remote server and signal monitoring device was tested and the effect was desired

Download Full-text

Trackless online algorithms for the server problem

Information Processing Letters ◽

10.1016/s0020-0190(00)00034-x ◽

2000 ◽

Vol 74 (1-2) ◽

pp. 73-79 ◽

Cited By ~ 8

Author(s):

Wolfgang W. Bein ◽

Lawrence L. Larmore

Keyword(s):

Online Algorithms ◽

Server Problem

Download Full-text

Initial Clinical Experience With a Simple, Home System for Early Detection and Monitoring of Diabetic Foot Ulcers: The Foot Selfie

Journal of Diabetes Science and Technology ◽

10.1177/19322968211053348 ◽

2021 ◽

pp. 193229682110533

Author(s):

Mark Swerdlow ◽

Laura Shin ◽

Karen D’Huyvetter ◽

Wendy J. Mack ◽

David G. Armstrong

Keyword(s):

Diabetic Foot ◽

Unmet Need ◽

Cost Of Care ◽

Foot Ulcers ◽

Diabetic Foot Ulcers ◽

Diagnostic Quality ◽

Plantar Surface ◽

Remote Server ◽

Ulcerative Lesions ◽

Serial Images

Background: Diabetic foot ulcers (DFUs) are a leading cause of disability and morbidity. There is an unmet need for a simple, practical, home method to detect DFUs early and remotely monitor their healing. Method: We developed a simple, inexpensive, smartphone-based, “ Foot Selfie” system that enables patients to photograph the plantar surface of their feet without assistance and transmit images to a remote server. In a pilot study, patients from a limb-salvage clinic were asked to image their feet daily for six months and to evaluate the system by questionnaire at five time points. Transmitted results were reviewed weekly. Results: Fifteen patients (10 male) used the system after approximately 5 minutes of instruction. Participants uploaded images on a median of 76% of eligible study days. The system captured and transmitted diagnostic quality images of the entire plantar surface of both feet, permitting clinical-management decisions on a remote basis. We monitored 12 active wounds and 39 pre-ulcerative lesions (five wounds and 13 pre-ulcerative lesions at study outset); we observed healing of seven wounds and reversal of 20 pre-ulcerative lesions. Participants rated the system as useful, empowering, and preferable to their previous methods of foot screening. Conclusions: With minimal training, patients transmitted diagnostic-quality images from home on most days, allowing clinicians to review serial images. This system permits inexpensive home foot screening and monitoring of DFUs. Further studies are needed to determine whether it can reduce morbidity of DFUs and/or the associated cost of care. Artificial intelligence integration could improve scalability.

Download Full-text

Assessment of a ground-based lightning detection and near real-time warning system in the rural community of Swayimane, KwaZulu-Natal, South Africa

Weather Climate and Society ◽

10.1175/wcas-d-20-0116.1 ◽

2021 ◽

Author(s):

Maqsooda Mahomed ◽

Alistair D. Clulow ◽

Sheldon Strydom ◽

Tafadzwanashe Mabhaudhi ◽

Michael J. Savage

Keyword(s):

South Africa ◽

Rural Communities ◽

Warning System ◽

Lightning Activity ◽

Lightning Flash ◽

Short Message ◽

Remote Server ◽

Kwazulu Natal ◽

Education And Awareness ◽

Multiple Network

AbstractClimate change projections of increases in lightning activity are an added concern for lightning-prone countries such as South Africa. South Africa’s high levels of poverty, lack of education and awareness, as well as a poorly developed infrastructure increases the vulnerability of rural communities to the threat of lightning. Despite the existence of national lightning networks, lightning alerts and warnings are not disseminated well to such rural communities. We therefore developed a community-based early warning system (EWS) to detect and disseminate lightning threats and alerts in a timeous and comprehensible manner within Swayimane, KwaZulu-Natal, South Africa. The system comprised of an electrical field meter and a lightning flash sensor with warnings disseminated via audible and visible alarms on-site and with a remote server issuing short message services (SMSs) and email alerts. Twelve months of data (February 2018-February 2019) were utilized to evaluate the performance of the EWS’s detection and warning capabilities. Diurnal variations in lightning activity indicated the influence of solar radiation, causing convective conditions with peaks in lightning activity occurring during the late afternoon and early evening (between 14h00 and 21h00) coinciding with learners being released from school and when most workers return home. In addition to detecting the threat of lightning, the EWS was beneficial in identifying periods that exhibited above-normal lightning activity with two specific lightning events examined in detail. Poor network signals in rural communities was an initial challenge delaying data transmission to the central server until rectified using multiple network providers. Overall, the EWS was found to disseminate reliable warnings timeously.

Download Full-text