chapter 7.docx
The document summarizes a research project that designed and implemented an open IoT testbed framework. The framework includes modules for sensor data, actuators, and APIs. It uses open source platforms to achieve interoperability, scalability, and reusability. Algorithms for code compilation and upload showed improved performance even with increased code size. Response times for remote sensors and actuators were only mildly increased compared to local access. A ranking model tested proved able to recommend the best services for different user types. The testbed was found to satisfactorily utilize resources based on user feedback. Future work could extend it to support mobile devices, include security software, test it with more users, and explore other statistical models.
chapter 7.docx
- 1. 108 CHAPTER 7 RESEARCHCONTRIBUTIONSAND FUTUREWORK The proposed open IoT utility based testbed cum working framework is successfully designed and implemented. This testbed has a control plane to discover resources, orchestrate and resolve conflict. This testbed framework comprises of service modules namely sensor data as service, actuator and platform as service and API as service. The sensor data as service is implemented with parameter based topics and sensor specific database update as against device specific update. The actuators (activation commands) are offered as service and Platform as a service model (is capable of receiving code uploads) via the proposed API's. The entire system is developed using open source platforms in order to achieve interoperability, scalability and re-usability, the prime challenges for IoT system development. The proposed algorithms have shown improvement in compilation and upload time even with increase in number of lines of code. The comparison of API execution time with local and remote sensors and actuators shows mild increase but acceptable with tradeoff of remote access, re-usability and scalability. The ranking model developed is tested which has proved to offer best services to varied users namely Academician, Industrialist, Data analyst, Researcher, Novice user. The most demanded services were also been identified which helps to decide on the prospective research domains. The set of services mostly used by specific set of users were arrived at using PCA model. The utilization factor based on performance and reliability based feedback model, have shown satisfactory utilization of the proposed IoT testbed framework.
- 2. 109 Scope for Future Work The present research work is concentrated on the design and implementation of IoT testbed service framework with enhanced availability and utilization to varied users. Still there is scope for extension, as described below: Research work can be extended for the mobile devices or things offered as service as part of the experimental testbed. As of now this research work has considered heterogeneity at the static things or devices. Security based software can be developed for inclusion as part of testbed. This software can help secure access of devices against hampering or misuse. Existing security algorithms can also be incorporated, if developing one is a challenge. The testbed utilization analysis can be verified with more varied users apart from the users considered in this research. Also, the system can be tested with more number of users, which may lead to much more precise conclusion about the demanded services, frequency and many other factors. Other statistical models can also explore to extend the research towards software/ hardware reliability metrics.