Design Of Lighting System Based On ARM/FPGA Technology

According to the principle of color mixture of colorimetric method,design full color display module based on RGB tricolor,according to the principle of image processing technology and gamma correction,design the look-up table module of gamma correction based on FPGA,improved the image data processing speed.In view of the relationship between LED brightness and human visual characteristics,the pulse width modulation method was adopted to design 256 gray level adjustment systems,which improved the system's environmental adaptability.Lighting control system designed in this paper in terms of data transmission using cable for transmission,in order to improve data transmission speed on the system to receive card data transmission adopts the combination of FPGA and ARM structure,the FPGA is responsible for data processing in the system,the ARM is responsible for the command response system,in the receiving card and external communication using gigabit network transmission speed,at the receiving card internal communication between FPGA and ARM correlates with the 100 mb Ethernet transmission speed,so in view of the above mentioned receiving card structure,design in the system receive card conversion of the RGMII and MII interface module based on FPGA,enhance the data transmission speed in the whole system,shortened the response delay time of each node,and for the upgrading of our country in the aspect of network equipment and other signal interface system design provides the beneficial reference.And use VS2008 software and VB.NET language to design the communication of upper machine software of receive CARDS,software can adjusted grey scale on the system,and the ability to set parameters such as gamma correction,the FPGA adopt passive PS programming model,to improve the adaptability and stability of the system,and shorten the system upgrade cycle,improve the efficiency of the development of the enterprise,reduce the cost.Finally,completed the system receives the card design,and through the development of PC software testing system receiving card,the actual debugging results show that the system is receiving card function is normal,the parts and the LED in the aspects of color,gray all conform to the requirements of the system design,the work efficiency and stability of the system have further ascension.