針對一起10 kV配電變壓器高壓側避雷器爆炸引起的低壓側用戶電擊死亡事件,分析了觸電事故的原因,提出了保證配電系統和人身安全的有效措施。
上傳時間： 2013-10-13
上傳用戶：菁菁聆聽
電氣安全名詞術語GB 4776-84
上傳時間： 2013-10-23
上傳用戶：qitiand
AD8280鋰電子電池安全監控器是一款用于鋰離子電池組的純硬件安全監控器，有多個輸入可用來監控6個電池的電壓以及2個溫度傳感器。多個AD8280器件可以通過菊花鏈方式連接起來，以監控遠多于6個電池單元的電池組，而無需使用大量隔離器。其輸出可以配置為獨立或共用報警狀態。
上傳時間： 2013-11-02
上傳用戶：3到15
基于對相關電力企業安全工器具的調研，針對現有的對安全工器具的管理比較落后，從而導致難以對安全工器具進行有效監控的問題，提出了一種簡單有效、容易實施的安全工器具監控方案。首先從整體上描述了安全工器具監控系統的總體結構，然后分別從硬件設計和軟件設計兩個方面對系統進行了詳細闡述。該系統已經成功運用于某電力企業的安全工器具監控，運行穩定，達到了設計的預期目的。
上傳時間： 2013-11-05
上傳用戶：blacklee
針對目前汽車追尾事件頻發問題，提出一種防汽車車前和車后追尾的安全裝置設計。該設計以高性能、低功耗的8位AVR微處理器ATmega8L為核心，結合霍爾式車速傳感器、激光雷達測距裝置和MMA7260QT加速度傳感器，能夠兼顧車前和車后，摒棄以往設計中只考慮車前或車后單一性缺點，尤其適用于高速、夜晚或新手行車。 Abstract: Aiming at the high frequency of vehicle rear-end collision，a safe device design of anti-vehicle rear-end collision is presented.In the design，the high-performance，low-power8-bit AVR microprocessor ATmega8L is utilized as a core combined with Hall-type speed sensor，laser-radar ranging devices and the acceleration sensor MMA7260QT.The design considers both the front and back of a car，and overcomes the drawbacks of former designs in which only the front or the back of the car is considered，so it is especially suitable for high-speed，night or the beginner’s driving.
上傳時間： 2013-10-14
上傳用戶：GavinNeko
提出了一種基于C8051F320的列車安全巡檢儀的設計方案，詳細闡述了巡檢儀的各個模塊的硬、軟件設計。巡檢儀集信息采集、軸溫檢測、照明和記錄存儲等功能于一體，實現了對列車安全巡檢工作有效的監督和科學管理。系統軟件采用C51編寫，對單片機進行有效的電源管理，保證了巡檢儀的穩定性、可靠性和低功耗性。 Abstract: This paper puts forward a design of train safety inspection based on C8051F320,describes all modules hardware and software design of inspection instrument.The inspection instrument has the function of information collection, axle’s temperature detection, lighting and records storage.It can supervise and administer train safety inspection work effectively.The system software using C51 can manage the power of single chip microcomputer, and guarantee the stability, reliability and low power consumption of the inspection instrument.
上傳時間： 2013-12-22
上傳用戶：落花無痕
摘要：本文闡明了單片機在電力系統安全統計上的應用與設計方法。幾年來，通過一些單位的實際應用，已證實了使用單片機進行自動控制的優越性。 關鍵詞：單片機；自動控制；軟件
上傳時間： 2013-11-07
上傳用戶：wenyuoo
摘要: 本文在研究了網絡安全的國內外有關情況后對網絡安全技術進行了探討,介紹了一種簡單而實用的網絡安全產品,添補了這方面的空白,而且本文介紹的產品已經應用到了許多部門,為網絡安全做出了貢獻.關鍵詞: 網絡;安全;Internet;黑客;物理隔離;MT8870
上傳時間： 2013-11-20
上傳用戶：1318695663
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
上傳時間： 2013-11-05
上傳用戶：維子哥哥
FPGA 具有輕松集成與支持新協議和新標準以及產品定制的能力，同時仍然可以實現快速的產品面市時間。在互聯網和全球市場環境中，外包制造變得越來越普遍，這使得安全變得更加重要。正如業界領袖出版的文章所述，反向工程、克隆、過度構建以及篡改已經成為主要的安全問題。據專家估計，每年因為假冒產品而造成的經濟損失達數十億美元。國際反盜版聯盟表示，這些假冒產品威脅經濟的發展，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 如何協助保護您的產品和利潤。
上傳時間： 2014-12-28
上傳用戶：松毓336
