畢業(yè)設(shè)計(jì)外文翻譯----基于多數(shù)據(jù)融合傳感器的分布式溫度控制系統(tǒng)-資料下載頁(yè)
2025-05-11 23:20本頁(yè)面
【導(dǎo)讀】在過(guò)去的幾十年，溫度控制系統(tǒng)已經(jīng)被廣泛的應(yīng)用。對(duì)于溫度控制提出了一。種基于多傳感器數(shù)據(jù)融合和CAN總線控制的一般結(jié)構(gòu)。感器數(shù)據(jù)融合估計(jì)算法參數(shù)分布式溫控系統(tǒng)。該系統(tǒng)的重要特點(diǎn)是其共性，其適。用于很多具體領(lǐng)域的大型的溫度控制。實(shí)驗(yàn)結(jié)果表明該系統(tǒng)具有較高的準(zhǔn)確性、可靠性，良好的實(shí)時(shí)性和廣泛的應(yīng)用前景。分布式控制系統(tǒng)；CAN總線控制；智能CAN節(jié)點(diǎn)；多數(shù)據(jù)融合傳感器。筑、溫室、恒溫車間、大中型糧倉(cāng)、倉(cāng)庫(kù)等。這種控制保證環(huán)境溫度能被保持在。在這種情況下，傳輸和響應(yīng)速度變得更低，抗干擾能力更差。此，我們應(yīng)當(dāng)尋找新的通信的方法來(lái)解決用RS-485總線控制系統(tǒng)而產(chǎn)生的問(wèn)題。線控制比RS-485總線控制系統(tǒng)更有優(yōu)勢(shì)。目前，它正被廣泛的應(yīng)用于實(shí)現(xiàn)分布式測(cè)量和范圍控制。作為系統(tǒng)的主要控制器，這主pc能和智能CAN節(jié)點(diǎn)通信。后一節(jié)中,我們將介紹適合于智能CAN. 用CAN總線與數(shù)據(jù)融合技術(shù)系統(tǒng)的可靠性和實(shí)時(shí)的能力被大大提高了。
【正文】 array of eight temperature values from eight sensors as follows The mean value of the eight measurement temperature result is Comparing the mean value (8)T with the true temperature value in the cell of the greenhouse, we can know that the measurement error is +℃ . After we eliminate the careless error from the fifth sensor using the method introduced before, we can obtain the mean value of the rest seven data (7)T=℃ , the measurement error is ℃ . The seven rest consistent sensor can be divided into two groups with sensor S1, S3, S7 in the first group and sensor S2, S4, S6, S8 in the second one. The arithmetical mean of the two groups of measured data and the standard deviation are as follows respectively: According to formula (13), we can educe the temperature fusion value with the seven measured temperature value. The error of the fusion temperature result is ℃ . It is obvious that the measurement result from data fusion is more close to the true value than that from arithmetical mean. In the practical application, the measured temperature value may be very dispersive as the monitoring area bees bigger, data fusion will improve the measuring precision much more obviously. 6. Conclusions The distributed temperature control system based on multisensor data fusion is constructed through CAN bus. It takes full advantage of the characteristics of field bus control systemFDCS. Data acquisition, data fusion and system controlling is carried out in the intelligent CAN node, and system management is implemented in the main controller (host PC). By using CAN bus and data fusion technology the reliability and realtime ability of the system is greatly improved. We are sure that it will be widely used in the future. References [1] Waltz E. Liinas J, Multisensor Data Fusion, Artech House, New York, 1990. [2] Philips Semiconductors, (1995b). ―P82C150: CAN serial linked I/O device (SLIO) with digital and analog port functions‖, preliminary Data Sheet, October 1995. [3] Aslam, J., Li, Q., Rus, D., Three poweraware routing algorithms for sensor works, Wireless Communications and Mobile Computing, –208, 2020. [4] , , Multisensor Integration and Fusion in Intelligent Systems, IEEE Trans. on Systems, Man, and Cyberics, Vol. 19, No. 5, September/October, 1989.. [5] Pau LF, Sensors data fusion, Journal of Intelligent and Robotic System, pp. 103106, 1998. [6] Thomopoulos S C., Sensor integration and data fusion, Journal of Robotic Systems, , 1990. [7] Rao B S Y, DurrantWhyte H F, Sheen J A, A fully decentralized multisensor system for tracking and surveillance, The International Journal of Robotics Research, Massachusetts Institute of Technology, Vol 12, No. 1, pp. 2044, Feb 1993. [8] Tenney R R, Jr sandell N R, Detection with distributed sensors, AES, Vol 17, , 1981
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