Edge calculation method and system in IoT (Internet of Things) network

The invention discloses an edge calculation method and system in an IoT network, and relates to the technical field of IoT networks, in particular to the edge calculation method and system in the IoT network, the IoT network based on mobile edge calculation is constructed, a collection sensor and a processor sense, measure and collect original data according to application requirements, and the original data are stored in the IoT network. A large amount of data is locally processed or uploaded to a computing node, and a matching model, a decision-making model and a sorting model are constructed for computing task nodes. According to the method, the task is limited by edge calculation, except for the minimum time delay, the deadline of the task can represent the urgency degree of the task, a real-time system provides definitions of a hard deadline and a soft deadline, in addition, a time-dependent efficiency function is also used for describing the requirement of task completion time, calculation of task nodes