發(fā)布時間：2019-03-30 15:50

【摘要】：我國城市近幾十年快速發(fā)展,大城市人口越來越集中,擁堵問題嚴重。通過大力修建地鐵的方式有效緩解了城市的交通擁擠的狀況,對城市的快速發(fā)展起了重要作用。但是在地鐵運營過程中地鐵屏蔽門、列車門時常出現(xiàn)安全問題,我們需要檢測它們在運動過程中的動能等指標是否符合國家標準。為了解決屏蔽門、列車門系統(tǒng)的滑動門動能測試的問題,本文設(shè)計了一個基于ARM微控制器與無線傳輸?shù)能囬T(滑動門)動能測試系統(tǒng),首先使用ARM微控制器采集傳感器的數(shù)據(jù),然后使用無線的方式實時將數(shù)據(jù)傳輸至計算機端,實現(xiàn)了車門動能、速度、位移的測試及對應(yīng)曲線在上位機的繪制。本文首先對車門動能測試系統(tǒng)測量原理進行了闡述,其中包括速度、位移、動能測量原理,并給出了它們的測量要求。然后根據(jù)這些要求,提出了本系統(tǒng)的設(shè)計方案。接著對本系統(tǒng)硬件電路和軟件進行了介紹,在硬件設(shè)計方面,首先對主要器件進行了選型,然后從恩智浦公司的微控制器LPC1114、Nordic公司無線傳輸模塊nRF24L01+、加速度計ADXL103、超聲波傳感器KS103等出發(fā)進行設(shè)計。在軟件方面,以模塊的方式具體介紹了各部分的程序設(shè)計流程,給出了程序流程圖,著重提到了如何由加速度值及位移測量值獲得車門動能指標的算法和計算過程。然后根據(jù)前面的工作繪制并焊接PCB,設(shè)計了車門動能測試系統(tǒng)的采集軟件和及電腦端展示軟件,實現(xiàn)了樣機系統(tǒng)。最后,在現(xiàn)場對設(shè)計中的每個環(huán)節(jié)做了具體的測試,并修改了其中的一些問題,提高了系統(tǒng)的一些性能,滿足了系統(tǒng)設(shè)計指標的要求。
[Abstract]:With the rapid development of Chinese cities in recent decades, the population of large cities becomes more and more concentrated and the congestion problem is serious. Through the construction of subway, the traffic congestion of the city is effectively alleviated, which plays an important role in the rapid development of the city. However, in the process of subway operation, there are often safety problems in shield doors and train doors, so we need to test whether the kinetic energy of them in the process of movement conforms to the national standards. In order to solve the problem of sliding door dynamic energy test of shielded door and train door system, a kinetic energy test system of door (sliding door) based on arm microcontroller and wireless transmission is designed in this paper. Firstly, the sensor data are collected by arm microcontroller. Then the data is transmitted to the computer in real-time by wireless mode, and the kinetic energy, velocity and displacement of the car door are measured and the corresponding curves are drawn in the upper computer. In this paper, the measurement principle of car door kinetic energy measurement system is described, including velocity, displacement and kinetic energy measurement principle, and their measurement requirements are given. Then, according to these requirements, the design scheme of the system is put forward. Then the hardware circuit and software of the system are introduced. In the aspect of hardware design, the main devices are selected firstly, and then the wireless transmission module nRF24L01 and accelerometer ADXL103, are selected from NXP microcontroller LPC1114,Nordic company. Ultrasonic sensor KS103 and so on set out to carry on the design. In the aspect of software, the program design process of each part is introduced in the way of module, the program flow chart is given, and the algorithm and calculation process of how to obtain the kinetic energy index of the car door from the acceleration value and the displacement measurement value are emphatically discussed. Then, according to the previous work drawing and welding PCB, the acquisition software and computer-end display software of the car door kinetic energy test system are designed, and the prototype system is realized. Finally, every link in the design is tested on the spot, and some of the problems are modified to improve the performance of the system and meet the requirements of the system design index.
【學(xué)位授予單位】：南京理工大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2017
【分類號】：U467.4;TP332

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