• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文会议>International System Safety Conference >Application of U.S. Navy Software System Safety Analysis to Remote Weapon Station Technology Armament Software Engineering Center U.S. Army Armament Research, Development and Engineering Center (ARDEC) Picatinny Arsenal, NJ
【24h】

Application of U.S. Navy Software System Safety Analysis to Remote Weapon Station Technology Armament Software Engineering Center U.S. Army Armament Research, Development and Engineering Center (ARDEC) Picatinny Arsenal, NJ

机译：美国海军软件系统安全分析对远程武器站技术武器软件工程中心美国陆军军备研究，开发和工程中心（ARDEC）Picatinny Arsenal，NJ

获取原文
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

A Software System Safety Analysis was conducted on a Remote Weapon Station (RWS) developed for a U.S. Navy patrol boat in order to assess the criticality of over sixty safety-significant software functions, apply the required Level-Of-Rigor (LOR) tasks, and assess the residual risk imposed by each function. The U.S. Navy Software Safety Tutorial (NSWCDD-PN-14-00295) utilizes MIL-STD-882E definitions for Severity and Control of the software functions to assign a Software Criticality Index (SwCI) and recommend appropriate LOR analytical tasks and safety-specific tests. This paper describes a sequential, logical process, summarizes the results of the analysis, and illustrates the added benefits of the analysis. Safety Significant Functions (SSFs) defined by the software developer form the basis of a Functional Hazard Analysis (FHA) with Architectural, Design and Requirements Analyses traceable to the top-level hazards defined by U.S. Navy Safety Professionals. Functional, safety-specific and in-depth safety-specific test procedures and results are mapped to SSFs depending as evidence of compliance with required MIL-882E LOR tasks. The Software Safety Analysis and Findings provide added insights for risk assessment and allow the Navy’s Software System Safety Technical Review Panel (SSSTRP) to quickly assess the readiness of the system for fielding and identify a set of final recommendations to ensure full confidence in its fitness for deployment. The findings demonstrated that the adaptation of an RWS, previously integrated onto land-based vehicles, to a U.S. Navy vessel, introduced a number of threats to mission safety, while adding minimal risk to system safety. The Control categories of the SSFs ranged from Semi-Autonomous to No Impact. However, the presence of added safety features in hardware and incorporation of additional precautions into training plans yielded significant reductions in Severity and, consequently, Software Criticality. The application of Analytical and Safety-Specific Testing rigors revealed residual safety risks tied primarily to crew situational awareness and readiness for engagement. However, from a system-safety standpoint, the resulting inhibits to weapon motion and firing reduced the threat of injury/death and equipment damage posed by the RWS. The SSFs that were assigned the highest Criticality ratings were rooted in legacy fire control and servo-system algorithms with predictable behavior and field-proven safety records. This led to the conclusion that the adaptation of the RWS for the marine environment did little to increase threats to system safety.
机译：软件系统安全性分析，以评估在六安全显著软件功能的关键性对美国海军巡逻艇开发的遥控武器站（RWS）进行，申请所需的Level-OF-严谨（LOR）的任务，和评估每个功能带来的剩余风险。美国海军软件安全教程（NSWCDD-PN-14-00295）利用的严重程度和软件功能来分配软件危害度指数（SwCI），并推荐合适的LOR分析工作和安全的具体测试控制MIL-STD-882E的定义。本文介绍了一种连续的，逻辑过程，总结了分析的结果，并示出了分析的额外的好处。由软件开发人员定义的安全重要的功能（单一股票期货）形成功能危害分析（FHA）与建筑的基础上，设计和需求分析溯源到由美国海军安全专家定义顶级的危害。功能性，安全性，具体和深入的安全相关的测试程序和结果被映射到不同的符合要求的MIL-882E LOR任务的证据单一股票期货。软件安全分析和研究结果提供了增加了风险评估的见解，并允许海军的软件系统安全技术审查小组（SSSTRP）快速评估系统的准备情况守备和识别一组最终建议，以确保充分的信心，其健身部署。研究结果表明，一个RWS的适应，以前集成到陆上交通工具，到美国海军船只，引进了一批以任务安全威胁，同时增加风险最小系统的安全性。在单一股票的控制类别范围从半自治到没有影响。然而，增加安全性的情况下在硬件和额外的预防措施纳入到特色培训计划取得了显著减少的严重程度，因此，软件危害性。分析和安全专用测试苛刻的应用揭示了剩余的安全风险主要捆绑船员的态势感知和准备订婚。然而，从系统安全的角度来看，产生的抑制，以武器运动和射击减少由RWS造成的伤害/死亡和设备损坏的威胁。已分配最高关键性评级的股票期货植根于与预测的行为和现场验证的安全纪录遗产消防控制和伺服系统的算法。这导致的结论是，RWS的海洋环境适应做一点提高系统安全性的威胁。

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