【摘要】：隧道照明是保證隧道內行車安全運行的重要條件，其費用在隧道運營中占很大比例。隨著中西部交通設施建設的發(fā)展，隧道數(shù)量也在快速增加，不科學的隧道照明已成為運營單位經(jīng)濟效益低下的原因。目前隧道內采用的照明光源、照明控制方式已不能適應節(jié)能降耗的需要，也不能應對隧道內復雜變化的環(huán)境。 通過對幾種現(xiàn)場總線性能的比較，，CAN總線突出表現(xiàn)在其結構簡單、穩(wěn)定性高、抗干擾能力強、擴展性和開放性好，以及成本低廉。本課題開發(fā)出了基于CAN總線的隧道照明系統(tǒng)，包括CAN總線中繼器及網(wǎng)關設計、自動調光LED平板燈恒流電源設計。該系統(tǒng)實現(xiàn)了多條CAN總線組成樹形網(wǎng)絡、多節(jié)點控制、多路12位A/D轉換電路、PWM可變恒壓源、應急電源、防雷電、高傳輸速率等功能。 本文詳細介紹了隧道中燈管位置的設定，帶有CAN總線功能C0851F040芯片以及帶SPI的獨立CAN控制器MCP2510的CAN控制器組成的中繼器以及他們軟件通信協(xié)議。以開關電源Cuk電路為基礎的可調輸出電壓的照明燈供電電路。并有相關實驗數(shù)據(jù)及其分析說明。 通過大量實驗，可實現(xiàn)各智能節(jié)點統(tǒng)一控制、在緊急情況下實現(xiàn)故障自診斷、應急處理等功能，不但能夠滿足隧道照明要求,而且有效節(jié)約了能源。
[Abstract]:Tunnel lighting is an important condition to ensure the safe operation of the tunnel, and its cost accounts for a large proportion in the tunnel operation. With the development of traffic facilities in the central and western regions, the number of tunnels is increasing rapidly, and unscientific tunnel lighting has become the reason for the low economic benefits of the operating units. At present, the lighting control mode used in the tunnel can not meet the needs of energy saving and consumption reduction, nor can it cope with the complex changing environment in the tunnel. By comparing the performance of several fieldbus, can bus is characterized by its simple structure, high stability, strong anti-interference ability, good expansibility and openness, and low cost. A tunnel lighting system based on CAN bus is developed in this paper, including the design of CAN bus repeater and gateway, and the design of constant current power supply for automatic dimming LED flat lamp. The system realizes the functions of tree network composed of multiple CAN buses, multi-node control, multi-channel 12-bit A / D conversion circuit, PWM variable constant voltage source, emergency power supply, lightning protection, high transmission rate and so on. This paper introduces in detail the setting of the lamp position in the tunnel, the repeater composed of C0851F040 chip with CAN bus function and the CAN controller with independent CAN controller MCP2510 with SPI, and their software communication protocol. A power supply circuit with adjustable output voltage based on Cuk circuit of switching power supply. And there are related experimental data and its analysis. Through a large number of experiments, the intelligent nodes can be controlled uniformly, and the functions of fault self-diagnosis and emergency treatment can be realized in emergency situations. It can not only meet the requirements of tunnel lighting, but also save energy effectively.
【學位授予單位】：河北工業(yè)大學
【學位級別】：碩士
【學位授予年份】：2014
【分類號】：U453.7

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