發(fā)布時間：2018-05-19 04:01

  本文選題：射頻 + 手持終端　； 參考：《天津工業(yè)大學》2017年碩士論文

【摘要】：隨著無線傳輸?shù)陌l(fā)展,無線數(shù)據(jù)傳輸越來越多的應用在工業(yè),農業(yè)以及生產生活中。而在工業(yè)生產中,機器人可以代替人工作在野外以及更惡劣的環(huán)境中,而控制機器人運行的手持控制器則是采用電池供電,如何選擇合適的電池,如何降低系統(tǒng)的功耗,成為研究的關鍵。針對傳統(tǒng)的有線式手持控制器布線難,功耗大,數(shù)據(jù)傳輸時誤差大等問題,本文設計了一款基于嵌入式射頻無線收發(fā)一體型芯片的無線手持控制器。該控制器實現(xiàn)了低功耗,提高了設備的靈活性,降低了數(shù)據(jù)傳輸?shù)恼`碼率。該控制器采用stm32f051系列微處理器為中央處理器,利用nRF905為無線收發(fā)模塊進行數(shù)據(jù)傳輸。實驗測試結果表明,在20米的范圍內,數(shù)據(jù)傳輸過程中誤碼率隨著距離的增加而增加,但是不大于0.0002,測得手持控制器的電池在連續(xù)運行狀態(tài)下,可以持續(xù)供電14個小時,處于休眠狀態(tài)下電池可以持續(xù)供電約29天,滿足最初的要求。本文主要在硬件設計以及軟件程序兩個方面對控制器進行了研究。該控制器采用Coretex-M0內核的ARM芯片作為系統(tǒng)的主控制器,該芯片具有體積小,功耗低的特點,非常適合應用在無線便攜式領域。系統(tǒng)數(shù)據(jù)傳輸模塊是整個系統(tǒng)的關鍵,在經過多種不同的無線芯片比較之后,最終選用的是nRF905無線模塊。該模塊能夠在三個不同的頻率下傳輸數(shù)據(jù),這對增加數(shù)據(jù)傳輸過程中的抗干擾性具有非常重要的作用,同時為以后應用跳頻技術奠定了基礎。在軟件程序開發(fā)的過程中,針對不同的功能,分成不同模塊進行設計,這樣能夠增加軟件程序的可讀性,同時加快了軟件程序的開發(fā)。在程序中定義的用戶層主要來完成主函數(shù)以及中斷函數(shù)的配置。在數(shù)據(jù)傳輸過程中涉及到的各種數(shù)據(jù)傳輸協(xié)議,需在用戶協(xié)議層來完成各個數(shù)據(jù)傳輸協(xié)議的編寫。由于在程序開發(fā)的過程中,直接調用庫函數(shù),所以程序的開發(fā)速度相對快。最終試驗測試結果表明,設計的手持控制器具有功耗低、可靠性高、操作簡便、成本低的特點。
[Abstract]:With the development of wireless transmission, wireless data transmission is more and more used in industry, agriculture and production. In industrial production, robots can work in the wild instead of humans and in worse environments, while handheld controllers that control the operation of robots are powered by batteries, how to choose the right batteries, and how to reduce the power consumption of the system. Become the key to the research. Aiming at the problems of difficult wiring, high power consumption and large error in data transmission, a wireless handheld controller based on embedded RF wireless transceiver integrated chip is designed in this paper. The controller achieves low power consumption, improves the flexibility of the device and reduces the bit error rate of data transmission. The controller uses stm32f051 series microprocessors as central processor and nRF905 as wireless transceiver module for data transmission. The experimental results show that in the range of 20 meters, the bit error rate increases with the increase of the distance, but not more than 0.0002. The battery of the hand-held controller can supply power continuously for 14 hours in the continuous operation. In dormant state, the battery can supply power continuously for about 29 days, meeting the initial requirements. In this paper, the hardware design and software program of the controller are studied. The controller uses the ARM chip of the Coretex-M0 core as the main controller of the system. The chip has the characteristics of small size and low power consumption, so it is very suitable for wireless portable applications. The system data transmission module is the key of the whole system. After many different wireless chips are compared, the nRF905 wireless module is selected. The module can transmit data at three different frequencies, which plays an important role in increasing the anti-interference in the process of data transmission. It also lays a foundation for the application of FH technology in the future. In the process of software program development, different functions are divided into different modules, which can increase the readability of software program and accelerate the development of software program. The user layer defined in the program mainly completes the configuration of the main function and interrupt function. In the process of data transmission, all kinds of data transfer protocols need to be written in the user protocol layer. Because in the process of program development, the library function is called directly, so the development speed of the program is relatively fast. The final test results show that the handheld controller has the advantages of low power consumption, high reliability, simple operation and low cost.
【學位授予單位】：天津工業(yè)大學
【學位級別】：碩士
【學位授予年份】：2017
【分類號】：TP242

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本文編號：1908605