Research On And Application Of Task-distribution-acceptance Model

With the continuous development of the Internet of Things(IoT), the sorts and quantity of the equipment used in IoT is getting larger and larger, which makes the problem of equipment management become the enterprise users' focus. There are three major problems of the on–site terminal devices in the existing IoT application systems, namely installation, maintenance and inspection. Currently, the existing software development approach to the on–site terminal devices is case by case, which means each IoT application system deals it with a different way and has hardly reusable modules. These IoT application systems are independent to each other, but the infrastructure and system structure they need are nearly the same, only different in their business logic. Therefore, to some way, these tree kinds of on-site tasks could be unified and use a common design model. Towards this direction, the main research work presented in this thesis is as follows:Firstly, it analyzes the characteristics and features of installation, maintenance and inspection of the on–site terminal devices in the existing IoT application systems, from their specific task management requirements to their concrete operational processes flow. Identify the commonness among different on–site terminal devices' installations and categorize the installation task, and so does the maintenance task and inspection task till the formation of unified task. On the basis of this, it can design the task distribution acceptance model, and describe them in graphical form.Secondly, it discusses the task distribution and task acceptance in the task distribution acceptance model, and studies the key technologies involved. Put forward the pushing-type task distribution based on RBAC, and designed pushing-type algorithm. To solve the differences which exist in data type and format of the different task forms, it designs the model of configurable task, using XML as a form of data transport and storage.Thirdly, aiming at implementing the task distribution acceptance model, it gives a detailed module design including task plan, task distribution and task acceptance. It discusses the functionality of every module and the design and realization of main classes and functions.Finally, it applies the task distribution acceptance model to the realization of IoT Intelligent Special Equipment Inspection Platform, which is a sub-project of the key technology research project named as Special Equipment Accident Prevention Based on Risk, to verify its feasibility and generality.