為滿足礦井安全生產(chǎn)要求，介紹了一種以AT89C51單片機(jī)為主控器，對(duì)環(huán)境空氣的溫度、有毒易燃?xì)怏w的濃度等進(jìn)行檢測(cè)的監(jiān)控系統(tǒng)。該系統(tǒng)配合外圍電路能實(shí)現(xiàn)對(duì)上述環(huán)境指標(biāo)的控制并存儲(chǔ)相關(guān)數(shù)據(jù)與上位PC機(jī)通信。它采用硬件抗干擾和軟件抗干擾技術(shù)，以確保整個(gè)系統(tǒng)工作的準(zhǔn)確性。 Abstract: In order to meet the needs of mine produce Safety，a kind of intellignet mine ambient monotoring and control system based on AT89C51 is introduced.This system can detect the temperature of ambient of mine，the density of poisonous inflammable gas,combined external circuit.With its function part， this system can change above-mentioned elements.
上傳時(shí)間： 2013-11-10
上傳用戶：wendy15
提出了一種基于C8051F320的列車安全巡檢儀的設(shè)計(jì)方案，詳細(xì)闡述了巡檢儀的各個(gè)模塊的硬、軟件設(shè)計(jì)。巡檢儀集信息采集、軸溫檢測(cè)、照明和記錄存儲(chǔ)等功能于一體，實(shí)現(xiàn)了對(duì)列車安全巡檢工作有效的監(jiān)督和科學(xué)管理。系統(tǒng)軟件采用C51編寫，對(duì)單片機(jī)進(jìn)行有效的電源管理，保證了巡檢儀的穩(wěn)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.
標(biāo)簽： C8051F320 列車 儀的設(shè)計(jì) 巡檢
上傳時(shí)間： 2013-12-22
上傳用戶：落花無(wú)痕
Safety GuidelinesThis manual contains notices which you should observe to ensure your own personal Safety, as well as toprotect the product and connected equipment. These notices are highlighted in the manual by a warningtriangle and are marked as follows according to the level of danger:
標(biāo)簽： Programmable 300 and
上傳時(shí)間： 2013-12-12
上傳用戶：fandeshun
The Infineon TriCore provides an Interrupt System with a high Safety standard. Thisdocument contains some instructions on how to initiate an Interrupt from an externaldevice. First it will show you how to trigger an Interrupt Service Request by an impulseon Port 0 or Port 1. Then in the second part of the document you can find hints how todebounce impulses to enable the use of a simple switch as input device.Authors: Thomas Bliem, CQ Nguyen / Infineon SMI MD Apps
標(biāo)簽： TriCore 外部設(shè)備 中斷 微控制器
上傳時(shí)間： 2013-11-05
上傳用戶：uuuuuuu
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(shí)間： 2013-11-05
上傳用戶：維子哥哥
闡述了軌道交通列車定位技術(shù)。介紹了在軌道交通系統(tǒng)中列車定位技術(shù)的功能，國(guó)內(nèi)外軌道交通中主要采用的列車定位方法，重點(diǎn)論述了幾種主要定位技術(shù)，并從定位精度、閉塞制式、維護(hù)投資成本、抗干擾等方面進(jìn)行分析比較。提出目前軌道交通定位技術(shù)應(yīng)綜合運(yùn)用，取長(zhǎng)補(bǔ)短，多種方法相互融合，才能滿足軌道交通中對(duì)安全可靠性的要求。 Abstract: Rail train positioning technology is described. The paper introduces the funetions of the train positioning technology in the rail transit system， the main methods of train positioning do mestic and international rail， and focuses on several key methods， analyzes and compares from the positioning accuracy， block system, maintenance and investment cost， interference and so on， suggested that the current rail positioning technology should be integrated use of positioning method of meriging， learn from each other， to meet the reliability requirements of rail Safety.
上傳時(shí)間： 2013-11-25
上傳用戶：franktu
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(shí)間： 2013-11-14
上傳用戶：zoudejile
The revolution of automation on factory floors is a key driver for the seemingly insatiable demand for higher productivity， lower total cost of ownership，and high Safety. As a result， industrial applications drive an insatiable demand of higher data bandwidth and higher system-level performance. This white paper describes the trends and challenges seen by designers and how FPGAs enable solutions to meet their stringent design goals.
標(biāo)簽： xilinx FPGAs 工業(yè) 中的應(yīng)用
上傳時(shí)間： 2013-11-08
上傳用戶：yan2267246
μC/OS-II已經(jīng)在世界范圍內(nèi)得到廣泛使用，包括諸多領(lǐng)域，如手機(jī)、路由器、集線器、不間斷電源、飛行器、醫(yī)療設(shè)備及工業(yè)控制等。實(shí)際上，μC/OS-II已經(jīng)通過(guò)了非常嚴(yán)格的測(cè)試，并且得到了美國(guó)航空管理局(Federal Aviation Administration)的認(rèn)證，可以用在飛行器上。這說(shuō)明μC/OS-II是穩(wěn)定可靠的，可用于與人性命攸關(guān)的安全緊要(Safety critical)系統(tǒng)；當(dāng)然，也可用于非安全緊要系統(tǒng)。
標(biāo)簽： OS-II
上傳時(shí)間： 2014-01-06
上傳用戶：himbly
This document specifies a subset of the C programming language which is intended to be suitable for embedded automotive systems up to and including Safety integrity level 3 (as defined in the MISRA Guidelines). It contains a list of rules concerning the use of the C programming language together with justifications and examples.
標(biāo)簽： programming specifies document language
上傳時(shí)間： 2013-12-11
上傳用戶：cursor
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