...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Journal of Mechanical Science and Technology >Development and evaluation of advanced safety algorithms for excavators using virtual reality
【24h】

Development and evaluation of advanced safety algorithms for excavators using virtual reality

机译：利用虚拟现实的挖掘机先进安全算法的开发与评价

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

This study focuses on the development and evaluation of advanced safety algorithms for excavators using virtual reality (VR). An excavator typically operates under a stationary state with its working parts rotating 360 degrees in coordination with nearby workers. During excavation, a fatal accident can occur due to operator carelessness and work site blind spots. Accidents due to collisions with nearby workers have been increasing. Accordingly, we presented safety system algorithms to prevent collisions with surrounding objects and secure the maximum working area in this study. We also evaluated the performance of safety system algorithms using VR. For risk assessment, we calculated the predicted working area through a kinematic analysis of the excavator's working parts and accordingly conducted target selection of risk factors. We used time-to-collision and warning indices as safety indices for the safety assessment of the selected target and divided the excavator's working modes into three categories: Safe, warning, and emergency braking modes. Control inputs, such as alarms and braking, were appropriately defined for each working mode. Under warning mode, workers can avoid collisions because a safety system will alert them of dangerous situations through an alarm. Under emergency braking mode, an emergency braking input signal is dispatched with an alarm to automatically prevent collisions. The advanced safety algorithm proposed in the study was developed in MATLAB/Simulink environment. The VR application was developed using a physics engine. On the basis of this application, the performance evaluation of the safety system algorithms was conducted on the frequently occurring sticking scenario.
机译：本研究侧重于使用虚拟现实（VR）的挖掘机先进安全算法的开发和评估。挖掘机通常在静止状态下操作，其工作部件与附近工人配合旋转360度。在挖掘过程中，由于操作员粗心和工作现场盲点可能会发生致命事故。由于附近工人的碰撞导致事故一直在增加。因此，我们提出了安全系统算法，以防止与周围物体的碰撞，并确保本研究中的最大工作区域。我们还评估了使用VR的安全系统算法的性能。对于风险评估，我们通过对挖掘机的工作部位的运动分析来计算预测的工作区域，并因此进行了危险因素的目标选择。我们使用时 - 碰撞和警告指数作为所选目标的安全评估的安全指标，并将挖掘机的工作模式分为三类：安全，警告和紧急制动模式。为每个工作模式适当地定义控制输入，例如警报和制动。在警告模式下，工人可以避免碰撞，因为安全系统会通过警报提醒它们危险情况。在紧急制动模式下，用警报派遣紧急制动输入信号以自动防止冲突。该研究中提出的高级安全算法是在Matlab / Simulink环境中开发的。 VR应用程序是使用物理引擎开发的。在本申请的基础上，对安全系统算法的性能评估进行了经常发生的粘性场景。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号