本文選題：光幕 + 紅外發(fā)射　； 參考：《廣東工業(yè)大學(xué)》2013年碩士論文

【摘要】：近年來(lái),隨著國(guó)內(nèi)經(jīng)濟(jì)及工業(yè)產(chǎn)業(yè)的發(fā)展,人們對(duì)生產(chǎn)安全的要求也越來(lái)越高,生產(chǎn)設(shè)備的防護(hù)裝置安全性與可靠性的要求不斷的提高。但國(guó)內(nèi)的安全防護(hù)裝置一般安全性、可靠性不夠高,且功能單一,較難滿足國(guó)內(nèi)工業(yè)化對(duì)安全的要求。 工業(yè)防護(hù)光幕用于實(shí)現(xiàn)對(duì)檢測(cè)范圍內(nèi)的安全檢測(cè)及安全控制,具有外部結(jié)構(gòu)簡(jiǎn)單、分辨率高、可靠性強(qiáng)等特點(diǎn),常在各種人機(jī)交互的工業(yè)生產(chǎn)設(shè)備中作為防護(hù)裝置�？煽啃怨ぷ鞔嬖谟诠饽辉O(shè)計(jì)、布局、元器件選型與制造等各個(gè)環(huán)節(jié)。需要綜合處理系統(tǒng)本身功能及環(huán)境各種因素對(duì)系統(tǒng)的影響,才能保證光幕長(zhǎng)時(shí)間具有高可靠性。 本文以工業(yè)防護(hù)光幕系統(tǒng)為研究對(duì)象,根據(jù)可靠性設(shè)計(jì)的特征,對(duì)系統(tǒng)核心模塊及系統(tǒng)整體的可靠性進(jìn)行了研究。研究?jī)?nèi)容主要分為五部分：第一部分綜述了國(guó)內(nèi)外安全防護(hù)光幕技術(shù)的發(fā)展及應(yīng)用現(xiàn)狀,分析高可靠性的光幕重要性,提出進(jìn)一步提高系統(tǒng)性能及技術(shù)指標(biāo)的思路；第二部分?jǐn)⑹隽斯饽坏幕驹砑翱煽啃圆呗?給出相應(yīng)的理論基礎(chǔ)及提高方法；第三部分詳細(xì)分析了系統(tǒng)硬件設(shè)計(jì),從各模塊具體設(shè)計(jì)到元件選型,提高抗干擾技術(shù)與故障檢測(cè)的技術(shù)設(shè)計(jì)等；第四部分?jǐn)⑹隽斯饽幌到y(tǒng)的軟件系統(tǒng)設(shè)計(jì)與實(shí)現(xiàn)；第五部分為系統(tǒng)制定并執(zhí)行了可靠性試驗(yàn),對(duì)其過(guò)流保護(hù)、浪涌抗擾度及環(huán)境應(yīng)力篩選試驗(yàn)等進(jìn)行比較全面的試驗(yàn),并進(jìn)行相應(yīng)的性能測(cè)試,實(shí)驗(yàn)表明本文提出的可靠性設(shè)計(jì)方案符合設(shè)計(jì)要求。 本文通過(guò)對(duì)系統(tǒng)可靠性建模,實(shí)現(xiàn)基于模糊可靠性設(shè)計(jì)的可靠性分配。使用雙回路冗余系統(tǒng)控制,解決了信號(hào)接收和控制與檢測(cè)及信息回饋之間的矛盾,提高了系統(tǒng)的實(shí)時(shí)性及穩(wěn)定性,并對(duì)關(guān)鍵模塊具有故障檢測(cè)功能。通過(guò)對(duì)電路系統(tǒng)降額設(shè)計(jì)、冗余設(shè)計(jì)、屏蔽濾波及電磁兼容設(shè)計(jì),提高了系統(tǒng)性能與對(duì)環(huán)境應(yīng)力的能力。 通過(guò)測(cè)試表明,基于紅外技術(shù)的工業(yè)防護(hù)光幕系統(tǒng)的可靠性、靈敏度、相應(yīng)時(shí)間等都有明顯提高,且能夠?yàn)槭褂萌藛T提供更合理的更人性的服務(wù),其實(shí)驗(yàn)及結(jié)果都達(dá)到了設(shè)計(jì)要求和目的。
[Abstract]:In recent years, with the development of domestic economy and industrial industry, the requirement of production safety is higher and higher. However, the domestic safety protection devices are generally safe, reliability is not high enough, and the function is single, so it is difficult to meet the safety requirements of domestic industrialization. Industrial protective light screen is used to realize safety detection and safety control in the range of detection. It has the characteristics of simple external structure, high resolution and strong reliability. It is often used as a protective device in various kinds of man-machine interactive industrial production equipment. Reliability work exists in light screen design, layout, components selection and manufacturing and other aspects. In order to ensure the high reliability of the light screen, it is necessary to comprehensively deal with the system's own function and the influence of various environmental factors on the system. In this paper, the system core module and the whole system reliability are studied according to the characteristics of reliability design, taking the industrial protection light screen system as the research object. The research contents are divided into five parts: the first part summarizes the development and application status of light screen technology of safety protection at home and abroad, analyzes the importance of high reliability light screen, and puts forward some ideas to further improve the system performance and technical index; The second part describes the basic principle and reliability strategy of the light screen, and gives the corresponding theoretical basis and improving method. The third part analyzes the hardware design of the system in detail, from the specific design of each module to the selection of the components. The fourth part describes the design and implementation of the software system of the light screen system, the fifth part formulates and executes the reliability test for the system, and gives the over-current protection to the system. The screening tests of surge immunity and environmental stress were carried out and the corresponding performance tests were carried out. The experimental results show that the reliability design scheme proposed in this paper meets the design requirements. In this paper, reliability allocation based on fuzzy reliability design is realized by modeling system reliability. The double loop redundancy system is used to solve the contradiction between signal receiving, control, detection and information feedback. It improves the real-time and stability of the system, and has the function of fault detection to the key modules. The performance of the system and its ability to environmental stress are improved by the design of reducing the amount of the circuit system, the redundancy design, the shielding filtering and the electromagnetic compatibility design. The test results show that the reliability, sensitivity, corresponding time and so on of the infrared technology based industrial protective light screen system are obviously improved, and it can provide more reasonable and more human service for the users. Both the experiment and the results meet the design requirements and objectives.
【學(xué)位授予單位】：廣東工業(yè)大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2013
【分類號(hào)】：X924.4

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