【摘要】 接地线是保护检修人员的一道安全屏障。在输配电线路上进行停电作业均须装设便携式接地线。针对便捷式接地线易受环境因素的影响，导致不能正确接地的情况。介绍了一种内置接地电阻检测仪的便捷式接地线装置。该装置基于STM32F4单片机并结合了卡尔曼滤波算法设计了可以实时检测接地电阻的便捷式接地线装置，通过通讯模块实时反馈接地电阻值到上位机判断便捷式接地线装置是否正确接地。便捷式接地线装置通过在无干扰下对阻值的检测，以及在不同频率干扰和土壤环境下的阻值检测。所得结果表明，所提算法在复杂的检测环境下比传统方法更高的检测精度和抗干扰性。对保障检修人员安全具有一定的实际意义。更多还原

【Abstract】 The grounding wire is a safety barrier to protect power grid maintenance personnel. A portable grounding wire device must be installed for high-altitude maintenance operations on power transmission and distribution lines. The portable grounding wire device is easily affected by environmental factors, resulting in incorrect grounding. The author introduces a portable ground wire device with a built-in ground resistance tester. The device is based on an STM32F4 microcontroller unit and combined with the Kalman filter algorithm to design a portable grounding wire device that can detect the grounding resistance in real-time. The grounding resistance value is fed back to the supervisory computer in real-time through the communication module to judge whether the device is grounded or not. The device detects the resistance value with no interference as well as under different frequency interference and soil environment. The results show that the proposed algorithm has higher detection accuracy and anti-interference than traditional methods in complex detection environments. It has specific practical significance to ensure the safety of power grid maintenance personnel.更多还原