Informatics Publishing Limited

Amirita Dewani ¹, Sania Bhatti ¹, Pirah Memon ¹, Veena Kumari ², Anum Arain ¹, Ayaz Jiskani ³

Affiliations
1 Department of Software Engineering, MUET, Jamshoro, PK
2 Institute of Information Technology, University of Sindh Hyderabad, PK
3 Department of Software Engineering, MUET, Jamshoro

Abstract

The rapid and revolutionary advancement in technology has increased the demand for advanced ubiquitous mobile applications in our daily lives. Home automation system uses collective smart technology to elevate sphere of security and human living standards. Wireless Smart home systems have been prototyped by researchers to realize different applications in vast contexts. In this paper we propose a keyless smart home security system which uses Bluetooth as a communication protocol to automate door locks based on a security code and predefined user credentials. The system combines Android phone as a signal sender to dispatch the input signal from an end users side, Bluetooth communication module as signal receiver, ARDUINO microcontroller as CPU and servo motor and light emitting diodes as an output. The system integrates two modules: one of which is Arduino microcontroller which is responsible for authentication and verification of security code and allows servo motor to process the output according to the received input. The second is android Application which provides an interface to the user to set credentials and security code which is then transmitted to the Arduino microcontroller via Bluetooth technology. Since Arduino and Android are open source, hence implementation rate of the proposed system is inexpensive and feasible.

Keywords

Home Security, Home Automation, Keyless Home , Door, Android, Bluetooth.

Full Text

   

Saman Shahid Qureshi ¹, Mohsin Memon ¹, Tehseen Hafiz ¹, Pirah Memon ¹

Affiliations
1 Department of Software Engineering, Mehran University of Engineering and Technology, Jamshoro, Sindh – 76062, PK

Abstract

Objective: In emergency situations, when the responsible users for a task in the organization are not available or inadequate, the task should be delegated to eligible candidates satisfactorily. Method: In this paper, we proposed a mechanism for the specification and validation of constraints which can be applied during erratic delegation of roles. We have used Object Constraint Language (OCL) for specification of constraints. Here, UML Specification Environment (USE) tool is employed for the validation of the constraints that will be verified before and after the role delegation of the appropriate users. Findings: Focusing on the present condition of every single organization, there are a number of employees from all over the world who face many problems when distinct tasks are assigned to them. The entire scenario becomes more confused when a simple task is transferred to a user for the delegation, whose conditions need to be explicitly defined. Our delegation model helps to solve this. The results of the proposed delegation mechanism are promising since it is ensured that delegation occurs only when the pre and post conditions are satisfied. The user, who is being granted the role during an emergency, enjoys the same authority as being enjoyed by the actual user. The proposed model can be employed in a variety of situations for role/job delegation, when the organization requires a proper delegation mechanism for job assignment. Novelty/Improvements: In this paper, a validation mechanism has been proposed for the delegation of job roles to and from users with certain conditions and its validation has been carried. Here delegation process is being implemented over two different organizations and results are conferred.

Full Text