Multi-information based cloud–edge–end collaborative computational tasks offloading for industrial IoT systems

Cloud–edge–end collaborative computational task offloading (CEETO) is a promising method in industrial Internet-of-things (IIoT) to support massive computational tasks generated by equipment that has low energy/computation ability. In this work, we propose a new CEETO scheme by invoking the deep learning method (DL) with the aid of a multi-information analysis approach. Firstly, considering the delay constraints of the real-time tasks and the processing ability constraints of the cloud/edge/end servers, we formulate the CEETO problem to achieve the lowest system delay by establishing contact between CEETO problem and multiple information, such as the time-related locations and tasks requirements/features. Then, we tailor a long-short term memory network (LSTMN) to analyze the relation among time, locations and task requirements/features for predicting multiple information. Finally, the predicted multiple information is utilized for the final offloading strategy generation by invoking the simulated annealing algorithm (SAA). As the proposed CEETO process is invoked based on the predictions of multiple information, it is particularly suitable for the planning, scheduling and deployment of cloud–edge–end resources in massive equipment IIoT scenarios. Simulation results show that our proposed scheme can achieve effective computational task offloading.