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Product Code:SAE J1750
Title:Describing and Evaluating the Truck DriverS Viewing Environment
Issuing Committee:Truck And Bus Human Factors Committee
Scope:This SAE Recommended Practice establishes two uniform methods for describing and evaluating the truck driver's viewing environment, the Polar Plot and the Horizontal Planar Projection. The Polar Plot presents the entire available field of view in an angular format, onto which items of interest may be plotted, whereas the Horizontal Planar Projection presents the field of view at a given elevation chosen for evaluation. These methods are based on the three dimensional reference system described in SAE J182a. This document relates to the driver's exterior visibility environment and was developed for the heavy truck industry (Class B vehicles, class 6, 7, 8 vehicles) although the projection principles presented in this document can be applied to any class of motor vehicles. This document is intended to complement SAE J1050a and provides a visual format that can describe the driver's entire viewing environment. This environment can then be analyzed to determine what the driver is capable of seeing. It should be noted that one of the most important factors affecting the driver's field of view and the ability to make valid vehicle/design comparisons is the location of the driver's eyepoint. SAE J941 defines the eyellipse which forms the basis for eyepoints chosen as the origin for polar plots and horizontal planar projections. Both the Horizontal Planar Projection and Polar Plot create monocular evaluations. Projections/plots of multiple eyepoints must be overlaid to create binocular of ambinocular evaluations.Anaytical methods for creating Polar Plots and Horizontal Planar Projections for direct and indirect vision (planar and spherical convex mirrors) are presented. Note that it is possible to create plots and projections for other mirror surfaces and vision devices if the equations for determining reflection points are provided. It is also possible to create polar plots and horizontal planar projections using experimental and graphical methods. These are beyond the present scope of this document.

标准名称：	信息安全技术 数据库管理系统安全评估准则
英文名称：	Information security technology—Data base management systems security evaluation criteria
中标分类：	电子元器件与信息技术 >> 电子元器件与信息技术综合 >> 卫生、安全、劳动保护
ICS分类：	信息技术、办公机械设备 >> 信息技术(IT)综合
发布部门：	中华人民共和国国家质量监督检验检疫总局 中国家标准化管理委员会
发布日期：	2005-11-11
实施日期：	2006-05-01
首发日期：	2005-11-11
作废日期：	1900-01-01
主管部门：	国家标准化管理委员会
提出单位：	全国信息安全标准化技术委员会
归口单位：	全国信息安全标准化技术委员会
起草单位：	北京大学软件工程国家工程中心等
起草人：	王立福，赵学志，程万军，刘学洋，葛佳
出版社：	中国标准出版社
出版日期：	2006-05-01
页数：	16开， 页数：36， 字数：60千字
计划单号：	20000005-T-312
书号：	155066.1-27493

本标准从信息技术方面规定了按照GB 17859-1999的五个安全保护等级对数据库管理系统安全保护等级划分所需要的评估内容。本标准适用于数据库管理系统的安全保护等级的评估，对于数据库管理系统安全功能的研制、开发和测试亦可参照使用。

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