The in-house developed drawing capture and motion capture system by Huilan Technology Co., Ltd. can quickly complete the collection of campus character images, high-fidelity digital reconstruction, expression-driven feature, and binding of limb movement features. It supports the design of five intelligent teaching assistants: 3D hyper-realistic, 3D realistic, 3D semi-realistic, 2D real-life, and cartoon, meeting the teaching scene assistance and service needs, and supporting customized assistant image designs.