Pipelining and parallel technology , accompanying with fast fifo as cache memory , instead of direct program operation , are adopted in the scheme and increase the transmitting speed dramatically ; fpga ( field programmable gate array ) is applied to realize the complex control logic of the system and makes it integrative , flexible and fast ; 386ex based embedded system , along with vxworks real - time operating system is introduced to substitute the microcontroller based system to simplify the hardware design and enhance the overall performance of ssr , and will make the system more easier to be applied to the projects in the future 该设计方案采用了流水线和并行技术,配以快速fifo缓存的方式取代了直接对flash进行编程的方式,极大地提高了闪存芯片存储数据的速率;采用fpga技术实现系统的主要控制逻辑,集成度高、灵活性好、速度快;采用基于386ex的嵌入式系统及基于vxworks的嵌入式实时操作系统,取代单片机系统及其编程,提高了系统的整体性能,减轻了硬件设计的负担,且使系统研发的延续性好。
Main product : light type ball transfer units light burthen series ; middle type ball transfer units middle burthen series ; heavy type ball transfer units heavy burthen series , also some ball transfer units which the ball can be used in up and down . and the products were well sold to abroad and domestic district , not only using in pipelining of the line for logistic and transmission ; the equipment of transportation machine and transmission machine , but also wide using in object swerve and concourse balance 主要制造:轻型万向滚珠轻负荷系列中型万向滚珠中负荷系列重型万向滚珠重负荷系列,又有球朝上和球朝下使用的万向滚珠。产品远销海内外,并广泛应用于物流传动行业的流水线输送机传动机等输送设备上以及物体转弯合流部分。
Owing to lack of auotmatic separation of led in our country , we borrow ideas from other countries and design a suit of equipment of automatic dection and separation of led . the equipment consists of several parts : led transportation setup ( disc libration setup , line libration setup ) , equidistant receving setup , detecting system and automatic separation of led . the equipment achieve automatic separation of led and pipelining . the research lay stress on machanical structural design and order action control which achieve automation separation by using pc and plc 可完成led波长和亮度的在线检测、自动处理和自动分选,实现了led在线分谱检测与自动分选的流水线作业。自动分选的机械结构设计、动作实现设计和顺序动作控制是本论文的重点。自动分选的实现是通过pc与plc的结合完成对plc的顺序控制。
The digitizer based on pxi bus uses fpga ( field programmable gate array ) to implement 256 points , radix - 2 dit fft ( fast fourier transform algorithm ) . the design uses pipelining for fft processing and can accomplish sampling and processing signals of two channels at the same time . in the signal acquisition circuit , - a / d convector is used to enhance the precision of the signal sampling 在本设计中,采用fpga ( fieldprogrammablegatearray )实现了256点基2dit算法复数fft ( fastfouriertransformalgorithm快速傅氏变换算法)处理器,具有较高的速度和运算精度fft ,设计采用流水线处理方式大大的提高了处理速度,可实现对两个通道输入信号的并行采集与处理。
By studying the pipelining mode in modern industry , i think the main advantage of this mode is : to help subdividing the producing - process , to make the working assignment more special , to lessen the requirements of working requirements of workers , to help the realization of automatically production , and to boost the working - efficiency in the whole working flow 主要借鉴了现代工业生产中的流水线作业模式,认为该模式的优势主要在于:生产过程得到细分,生产任务得到专门化,从而有助于降低对工人操作技术的要求,有助于确保产品的质量,有助于生产自动化的实现,从而有助于提高整个过程的生产效率。