本文介绍了以８０３１单片机为控制核心构成的高空作业车单片机力矩限制器，可以直接做为直屈伸式高空作业车的安全保护装置。具有语音功能、较高的智能水平和可靠性，并且具有较好的通用性。 This paper introduces the SCM torque limiter which is composed of 8031 ​​single-chip microcomputer as the control core, which can be directly used as the safety protection device of the straight-lift aerial vehicle. Has a voice function, a high level of intelligence and reliability, and has good versatility.