基于P87 C591的CAN總線系統(tǒng)智能節(jié)點(diǎn)設(shè)計(jì)Design of CAN System intelligent Node Based on P87C591 給出了基于帶CAN控制器的單片8位微控制器P87C591的智能節(jié)點(diǎn)的硬件電路及軟件結(jié)構(gòu)，詳細(xì)介紹了設(shè)計(jì)中的難點(diǎn)及實(shí)現(xiàn)過(guò)程中應(yīng)注意的問(wèn)題。關(guān)鍵詞:CAN總線;智能節(jié)點(diǎn) Abstract:A h ardc ircuita nds oftw arec onfigurationo fth ei ntelligentnode based on a microcontroller with CAN controller P87C591 arepresented.E speciallyt hec ruxi nd esigninga ndt hep roblemst hatshould be paid attention in realizing are discussed in details.Keyw ords:C AN;in telligentn ode CA N 總線 是德國(guó)Bosch從20世紀(jì)80年代初為解決現(xiàn)代汽車中眾多的控制與測(cè)試儀器之間的數(shù)據(jù)交換而開(kāi)發(fā)的一種串行數(shù)據(jù)通信協(xié)議，它是一種多主總線，通信介質(zhì)可以是雙絞線、同軸電纜或光導(dǎo)纖維。由于CAN總線具有較強(qiáng)的糾錯(cuò)能力，支持差分收發(fā)，因而適合高噪聲環(huán)境。并具有較遠(yuǎn)的傳輸距離，適用于許多領(lǐng)域的分布式測(cè)控系統(tǒng)。目前已在工業(yè)自動(dòng)化、建筑物環(huán)境控制、醫(yī)療設(shè)備等許多領(lǐng)域得到廣泛的應(yīng)用。CAN已成為國(guó)際標(biāo)準(zhǔn)化組織IS011898標(biāo)準(zhǔn)。
標(biāo)簽： P87C591 CAN 總線系統(tǒng) 智能節(jié)點(diǎn)
上傳時(shí)間： 2013-10-30
上傳用戶：xymbian
針對(duì)嵌入式機(jī)器視覺(jué)系統(tǒng)向獨(dú)立化、智能化發(fā)展的要求，介紹了一種嵌入式視覺(jué)系統(tǒng)--智能相機(jī)。基于對(duì)智能相機(jī)體系結(jié)構(gòu)、組成模塊和圖像采集、傳輸和處理技術(shù)的分析，對(duì)國(guó)內(nèi)外的幾款智能相機(jī)進(jìn)行比較。綜合技術(shù)發(fā)展現(xiàn)狀，提出基于FPGA+DSP模式的硬件平臺(tái)，并提出智能相機(jī)的發(fā)展方向。分析結(jié)果表明，該系統(tǒng)設(shè)計(jì)可以實(shí)現(xiàn)脫離PC運(yùn)行，完成圖像獲取與分析，并作出相應(yīng)輸出。 Abstract: This paper introduced an embedded vision system-intelligent camera ，which was for embedded machine vision systems to an independent and intelligent development requirements. intelligent camera architecture， component modules and image acquisition， transmission and processing technology were analyzed. After comparing integrated technology development of several intelligent cameras at home and abroad， the paper proposed the hardware platform based on FPGA+DSP models and made clear direction of development of intelligent cameras. On the analysis of the design， the results indicate that the system can run from the PC independently to complete the image acquisition and analysis and give a corresponding output.
標(biāo)簽： FPGA DSP 模式 智能相機(jī)
上傳時(shí)間： 2013-10-24
上傳用戶：bvdragon
在研究傳統(tǒng)家用燃?xì)鈭?bào)警器的基礎(chǔ)上，以ZigBee協(xié)議為平臺(tái)，構(gòu)建mesh網(wǎng)狀網(wǎng)絡(luò)實(shí)現(xiàn)網(wǎng)絡(luò)化的智能語(yǔ)音報(bào)警系統(tǒng)。由于傳感器本身的溫度和實(shí)際環(huán)境溫度的影響，傳感器標(biāo)定后采用軟件補(bǔ)償方法。為了減少系統(tǒng)費(fèi)用，前端節(jié)點(diǎn)采用半功能節(jié)點(diǎn)設(shè)備，路由器和協(xié)調(diào)器采用全功能節(jié)點(diǎn)設(shè)備，構(gòu)建mesh網(wǎng)絡(luò)所形成的家庭內(nèi)部報(bào)警系統(tǒng)，通過(guò)通用的電話接口連接到外部的公用電話網(wǎng)絡(luò)，啟動(dòng)語(yǔ)音模塊進(jìn)行報(bào)警。實(shí)驗(yàn)結(jié)果表明，在2.4 GHz頻率下傳輸，有墻等障礙物的情況下，節(jié)點(diǎn)的傳輸距離大約為35 m，能夠滿足家庭需要，且系統(tǒng)工作穩(wěn)定，但在功耗方面仍需進(jìn)一步改善。 Abstract: On the basis of studying traditional household gas alarm system, this paper proposed the platform for the ZigBee protocol，and constructed mesh network to achieve network-based intelligent voice alarm system. Because of the sensor temperature and the actual environment temperature, this system design used software compensation after calibrating sensor. In order to reduce system cost, semi-functional node devices were used as front-end node, however, full-function devices were used as routers and coordinator，constructed alarm system within the family by building mesh network，connected to the external public telephone network through the common telephone interface, started the voice alarm module. The results indicate that nodes transmit about 35m in the distance in case of walls and other obstacles by 2.4GHz frequency transmission, this is able to meet family needs and work steadily, but still needs further improvement in power consumption.
標(biāo)簽： ZigBee 無(wú)線智能 家 報(bào)警系統(tǒng)
上傳時(shí)間： 2013-10-30
上傳用戶：swaylong
針對(duì)嵌入式機(jī)器視覺(jué)系統(tǒng)向獨(dú)立化、智能化發(fā)展的要求，介紹了一種嵌入式視覺(jué)系統(tǒng)--智能相機(jī)。基于對(duì)智能相機(jī)體系結(jié)構(gòu)、組成模塊和圖像采集、傳輸和處理技術(shù)的分析，對(duì)國(guó)內(nèi)外的幾款智能相機(jī)進(jìn)行比較。綜合技術(shù)發(fā)展現(xiàn)狀，提出基于FPGA+DSP模式的硬件平臺(tái)，并提出智能相機(jī)的發(fā)展方向。分析結(jié)果表明，該系統(tǒng)設(shè)計(jì)可以實(shí)現(xiàn)脫離PC運(yùn)行，完成圖像獲取與分析，并作出相應(yīng)輸出。 Abstract: This paper introduced an embedded vision system-intelligent camera ，which was for embedded machine vision systems to an independent and intelligent development requirements. intelligent camera architecture， component modules and image acquisition， transmission and processing technology were analyzed. After comparing integrated technology development of several intelligent cameras at home and abroad， the paper proposed the hardware platform based on FPGA+DSP models and made clear direction of development of intelligent cameras. On the analysis of the design， the results indicate that the system can run from the PC independently to complete the image acquisition and analysis and give a corresponding output.
標(biāo)簽： FPGA DSP 模式 智能相機(jī)
上傳時(shí)間： 2013-11-14
上傳用戶：無(wú)聊來(lái)刷下
Abstract: This application note explains how to design an intelligent lighting controller that senses and measures the ambient lightlevel with an ambient light sensor (ALS). Equipped with a real-time clock (RTC), the controller also knows when to turn lighting on oroff at specified times. The system presented in this document can be used to control all luminaires that are mains-supply operated.Controller software is also provided in hex format.
標(biāo)簽： 智能照明控制器 測(cè)量 環(huán)境光線
上傳時(shí)間： 2013-11-18
上傳用戶：AbuGe
Many applications use connection/object pool. A program may require a IMAP connection pool and LDAP connection pool. One could easily implement a IMAP connection pool, then take the existing code and implement a LDAP connection pool. The program grows, and now there is a need for a pool of threads. So just take the IMAP connection pool and convert that to a pool of threads (Copy, paste, find, replace????). Need to make some changes to the pool implementation? Not a very easy task, since the code has been duplicated in many places. Re-inventing source code is not an intelligent approach in an object oriented environment which encourages re-usability. It seems to make more sense to implement a pool that can contain any arbitrary type rather than duplicating code. How does one do that? The answer is to use type parameterization, more commonly referred to as templates.
標(biāo)簽： connection pool applications program
上傳時(shí)間： 2013-12-25
上傳用戶：playboys0
gibbs，beyesian network，intelligent inference, Markov, BeliefPropagation. It is a very good surce code for intelligent reasoning research
標(biāo)簽： gibbs
上傳時(shí)間： 2014-01-15
上傳用戶：372825274
The market for miniature computer programming is exploding. C++ Footprint and Performance Optimization supplies programmers the knowledge they need to write code for the increasing number of hand-held devices, wearable computers, and intelligent appliances. This book gives readers valuable knowledge and programming techniques that are not currently part of traditional programming training. In the world of C++ programming, all other things being equal, programs that are smaller and faster are better. C++ Footprint and Performance Optimization contains case studies and sample code to give readers concrete examples and proven solutions to problems that don t have cut and paste solutions.
標(biāo)簽： Performance programming Optimizati Footprint
上傳時(shí)間： 2013-12-09
上傳用戶：wfl_yy
著名IDAutomation公司的JAVA條碼控件源碼，支持Code 128, Code 39, Postnet, ITF, UPC, EAN, GS1, intelligent Mail, Data Matrix & PDF417
標(biāo)簽： IDAutomation JAVA 條碼 控件
上傳時(shí)間： 2014-01-15
上傳用戶：zl5712176
典型的開(kāi)發(fā)模型有：①瀑布模型(waterfall model)；②漸增模型/演化/迭代(incremental model)；③原型模型(prototype model)；④螺旋模型(spiral model)；⑤噴泉模型(fountain model)；⑥智能模型(intelligent model) 7. 混合模型(hybrid model)
標(biāo)簽： model incremental waterfall prototype
上傳時(shí)間： 2013-12-17
上傳用戶：zhaoq123
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