Design and Implementation of a Lightweight Artificial Intelligence Model for Intelligent Terminals

This paper designs and implements a lightweight artificial intelligence model for intelligent terminals. First, the hardware characteristics of smartphones, IoT terminals, and wearable devices are analyzed, together with the real-time, low-power, and storage-constrained requirements of terminal-side AI applications. Second, the design objectives and constraints of the lightweight model are clarified, and an overall architecture named LightNet is constructed. The model optimizes the feature extraction and inference decision modules using depthwise separable convolution, a bottleneck structure, attention enhancement, operator fusion, pruning, and 8-bit quantization. The model is implemented and deployed using the PyTorch framework, and terminal debugging is completed on mainstream intelligent devices. Experimental results show that the proposed model reduces the number of parameters by up to 96.9% compared with VGG16, improves inference speed by 77.5%, and reduces power consumption by 64.3% while maintaining a classification accuracy of 92.3%. Because intelligent terminals often operate through antenna-enabled sensing and wireless electromagnetic propagation environments, the model is applicable to edge AI scenarios requiring low-latency, energy-efficient, and electromagnetic-compatible deployment.