Is optical fiber the only way to communicate information to a distant control center 光纖是向遠端的控制中心傳輸信息的唯一辦法嗎?
In the hardware design , the paper completes modules ’ design like outside memory , patulous a / d , patulous d / a , rs232 communication , ecan communication , led control , keyboard control , distant control , emulation , reset , logic voltage switch , dsp supply power regulate and ac - dc power circuit , as well as room layout design like anterior panel , back panel etc . and dsp transfers data with peripheral equipments except outside memory using serial ports . besides , the whole circuit is configured in interrupt response . thus , it can meet system demand as well as take full advantage of tms320f2812 ’ s hardware resource . in the software design , the paper finishs programs like the interface programms intercommunicates with people , the distant control program , ad and da modules ’ control program , in addition , the paper select the velocity and acceleration state - feedback algorithm and is written in the program . the software design uses dsp integrate exploiting environment named ccs2 . 2 of ti inc . as software instrument , and programs with the combination of c language and assembly language . moreover , in order to maintenance or modify the software expediently and shorten software ’ s exploitation time , the design adopt software modularization technique . finally , some air cylinder experiments are carried out to proved that the pneumatic controller is very practical 在硬件設計中,本文完成了片外存儲器擴展、 a / d擴展、 d / a擴展、 rs232通信接口、 ecan通信總線接口、液晶顯示控制、鍵盤控制、遠程控制、仿真、復位、邏輯電平轉換、 dsp工作電源校正電路和ac - dc電源等模塊設計以及控制器前面板、后面板等的空間布局設計。其中dsp與除外部存儲器的外圍設備之間的數據傳送全部采用串口通信,同時系統(tǒng)電路配置成中斷響應方式,這樣既滿足了系統(tǒng)要求,又充分利用了tms320f2812的硬件資源。在軟件設計中,本文完成了人機界面功能模塊、遠程控制模塊、 ad擴展模塊、 da擴展模塊、速度和加速度狀態(tài)反饋的控制算法的程序設計。