本文選題：實(shí)驗(yàn)室管理　切入點(diǎn)：物聯(lián)網(wǎng)技術(shù)　出處：《四川師范大學(xué)》2017年碩士論文

【摘要】：實(shí)驗(yàn)教學(xué)是高校教學(xué)環(huán)節(jié)中不可或缺的一部分,為了更好地服務(wù)廣大師生,需要對(duì)實(shí)驗(yàn)室進(jìn)行科學(xué)規(guī)范的管理。然而,現(xiàn)有實(shí)驗(yàn)室管理方式的自動(dòng)化、信息化程度不高,多數(shù)高校依然采用人工登記的方式管理實(shí)驗(yàn)室。近年來(lái),隨著物聯(lián)網(wǎng)技術(shù)的迅速發(fā)展,基于這類技術(shù)設(shè)計(jì)實(shí)驗(yàn)室管理系統(tǒng)可為實(shí)驗(yàn)室的高效運(yùn)轉(zhuǎn)提供保障。本文以物聯(lián)網(wǎng)感知層、網(wǎng)絡(luò)層、應(yīng)用層的三層結(jié)構(gòu)為參考,結(jié)合具體的應(yīng)用場(chǎng)景,研制了一套集實(shí)驗(yàn)設(shè)備管理、實(shí)驗(yàn)室環(huán)境監(jiān)測(cè)、實(shí)驗(yàn)教學(xué)于一體的實(shí)驗(yàn)室管理系統(tǒng),該系統(tǒng)由信息獲取、中控和存儲(chǔ)應(yīng)用三部分構(gòu)成。首先,設(shè)計(jì)信息獲取部分以實(shí)現(xiàn)感知層的功能,使用傳感器采集實(shí)驗(yàn)室的實(shí)時(shí)環(huán)境信息,借助Zigbee實(shí)現(xiàn)環(huán)境信息的無(wú)線傳輸,采用掃描槍獲取設(shè)備的編碼信息。其次,設(shè)計(jì)中控部分實(shí)現(xiàn)網(wǎng)絡(luò)層的有線傳輸,以ARM為核心構(gòu)建了嵌入式系統(tǒng),基于該系統(tǒng)實(shí)現(xiàn)對(duì)感知層信息的中轉(zhuǎn)傳輸。然后,設(shè)計(jì)存儲(chǔ)應(yīng)用部分以實(shí)現(xiàn)應(yīng)用層的功能,使用MySQL建立數(shù)據(jù)庫(kù)存儲(chǔ)系統(tǒng)所涉及到的數(shù)據(jù)信息,根據(jù)實(shí)際需求完成了Web端和Android端應(yīng)用程序的開(kāi)發(fā)。同時(shí),針對(duì)信息獲取可能產(chǎn)生的測(cè)量誤差以及傳輸過(guò)程中的擁塞問(wèn)題給出對(duì)應(yīng)的解決方案。在信息獲取部分,將采集到的數(shù)據(jù)的均值反饋給用戶,以樣本標(biāo)準(zhǔn)偏差作為告警參考,保證了系統(tǒng)的準(zhǔn)確性。在中控部分,建立傳輸模型,針對(duì)傳輸過(guò)程中潛在的擁塞問(wèn)題在NS-2環(huán)境下用TCP擁塞控制算法進(jìn)行仿真,選出適合本系統(tǒng)的擁塞控制方案以提高系統(tǒng)的穩(wěn)定性。測(cè)試結(jié)果表明,該實(shí)驗(yàn)室管理系統(tǒng)性能穩(wěn)定、數(shù)據(jù)準(zhǔn)確、傳輸可靠、兼容性強(qiáng),能夠滿足當(dāng)前高校實(shí)驗(yàn)室管理工作的需求,并為學(xué)生獲取實(shí)驗(yàn)教學(xué)資源提供了新的途徑。
[Abstract]:Experimental teaching is an indispensable part of teaching in colleges and universities. In order to better serve teachers and students, it is necessary to carry out scientific and standardized management of laboratories. However, the degree of automation and informatization of existing laboratory management methods is not high. Most universities still use manual registration to manage laboratories. In recent years, with the rapid development of Internet of things technology, The design of laboratory management system based on this kind of technology can provide the guarantee for the efficient operation of the laboratory. This paper takes the three-layer structure of the perceptual layer, the network layer and the application layer of the Internet of things as the reference, combining with the concrete application scene. A set of laboratory management system which integrates experimental equipment management, laboratory environment monitoring and experimental teaching is developed. The system consists of three parts: information acquisition, central control and storage application. Design information acquisition part to realize the function of perception layer, use sensor to collect real-time environment information of laboratory, use Zigbee to realize wireless transmission of environment information, use scanning gun to obtain the coding information of equipment. Secondly, The central control part is designed to realize the wired transmission of the network layer, the embedded system is constructed with ARM as the core, and the information transfer of the perceptual layer is realized based on the system. Then, the storage application part is designed to realize the function of the application layer. The data information involved in building database storage system with MySQL is used to complete the development of Web and Android application programs according to the actual requirements. At the same time, In the part of information acquisition, the average value of the collected data is fed back to the user, and the sample standard deviation is used as the alarm reference. In the central control part, the transmission model is established, and the TCP congestion control algorithm is used to simulate the potential congestion problem in the NS-2 environment. A congestion control scheme suitable for the system is selected to improve the stability of the system. The test results show that the laboratory management system has stable performance, accurate data, reliable transmission and strong compatibility. It can meet the needs of laboratory management in colleges and universities, and provide a new way for students to obtain experimental teaching resources.
【學(xué)位授予單位】：四川師范大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2017
【分類號(hào)】：TP391.44;TN92;TP311.52

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