This white paper discusses how market trends, the need for increased productivity, and new legislation have accelerated the use of safety systems in industrial machinery. This TÜV-qualified FPGA design methodology is changing the paradigms of safety designs and will greatly reduce development effort, system complexity, and time to market. This allows FPGA users to design their own customized safety controllers and provides a significant competitive advantage over traditional microcontroller or ASIC-based designs. Introduction The basic motivation of deploying functional safety systems is to ensure safe operation as well as safe behavior in cases of failure. Examples of functional safety systems include train brakes, proximity sensors for hazardous areas around machines such as fast-moving robots, and distributed control systems in process automation equipment such as those used in petrochemical plants. The International Electrotechnical Commission’s standard, IEC 61508: “Functional safety of electrical/electronic/programmable electronic safety-related systems,” is understood as the standard for designing safety systems for electrical, electronic, and programmable electronic (E/E/PE) equipment. This standard was developed in the mid-1980s and has been revised several times to cover the technical advances in various industries. In addition, derivative standards have been developed for specific markets and applications that prescribe the particular requirements on functional safety systems in these industry applications. Example applications include process automation (IEC 61511), machine automation (IEC 62061), transportation (railway EN 50128), medical (IEC 62304), automotive (ISO 26262), power generation, distribution, and transportation. 圖Figure 1. Local Safety System
標(biāo)簽： FPGA 安全系統(tǒng)
上傳時間： 2013-11-14
上傳用戶：zoudejile
FPGA 具有輕松集成與支持新協(xié)議和新標(biāo)準(zhǔn)以及產(chǎn)品定制的能力，同時仍然可以實現(xiàn)快速的產(chǎn)品面市時間。在互聯(lián)網(wǎng)和全球市場環(huán)境中，外包制造變得越來越普遍，這使得安全變得更加重要。正如業(yè)界領(lǐng)袖出版的文章所述，反向工程、克隆、過度構(gòu)建以及篡改已經(jīng)成為主要的安全問題。據(jù)專家估計，每年因為假冒產(chǎn)品而造成的經(jīng)濟(jì)損失達(dá)數(shù)十億美元。國際反盜版聯(lián)盟表示，這些假冒產(chǎn)品威脅經(jīng)濟(jì)的發(fā)展，并且給全球的消費類市場帶來重大影響。本白皮書將確定設(shè)計安全所面臨的主要威脅，探討高級安全選擇，并且介紹Xilinx 的新型、低成本SpartanTM-3A、Spartan-3AN 和Spartan-3A DSP FPGA 如何協(xié)助保護(hù)您的產(chǎn)品和利潤。
標(biāo)簽： Spartan FPGA 267 DSP
上傳時間： 2013-10-26
上傳用戶：simonpeng
Spartan-3AN 器件帶有可以用于儲存配置數(shù)據(jù)的片上Flash 存儲器。如果在您的設(shè)計中Flash 存儲器沒有與外部相連，那么Flash 存儲器無法從I/O 引腳讀取數(shù)據(jù)。由于Flash 存儲器在FPGA 內(nèi)部，因此配置過程中Spartan-3AN 器件比特流處于隱藏狀態(tài)。這一配置成了設(shè)計安全的起點，因為無法直接從Flash 存儲器拷貝設(shè)計。
上傳時間： 2013-10-31
上傳用戶：R50974
可編程安全系統(tǒng)，安全總線系統(tǒng)模塊化安全繼電器-PNOZMULTI基礎(chǔ)單元，輸出擴展模塊，輸入擴展模塊，速度監(jiān)視模塊，通訊擴避展模塊等內(nèi)容。
標(biāo)簽： 可編程 安全系統(tǒng) 總線系統(tǒng)
上傳時間： 2013-11-12
上傳用戶：sxdtlqqjl
風(fēng)電場的運行與維護(hù)的安全注意事項
標(biāo)簽： 風(fēng)電場 安全操作 規(guī)程
上傳時間： 2013-11-04
上傳用戶：brilliantchen
電氣安全
上傳時間： 2015-01-02
上傳用戶：xingyuewubian
電力自耦變壓器公共繞組過負(fù)荷分析
上傳時間： 2013-10-14
上傳用戶：xinhaoshan2016
Netscape公司提供的安全套接字層
上傳時間： 2013-12-06
上傳用戶：R50974
安全套接字層
標(biāo)簽： 套接
上傳時間： 2013-12-19
上傳用戶：123456wh
支持SSL v2/v3, TLS, PKCS #5, PKCS #7, PKCS #11, PKCS #12, S/MIME, X.509v3證書等安全協(xié)議或標(biāo)準(zhǔn)的開發(fā)庫編譯用到NSPR
上傳時間： 2014-01-27
上傳用戶：sammi
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