| Combined with the development of communication interface of power quality analyzer at home and abroad,the following three aspects are studied,including the overall architecture of the analyzer,the communication interface hardware of the analyzer,the communication interface driver of the analyzer,and so on.1.The research of power quality analyzer is based on DSP+ARM as the core processor hardware architecture,and DSP adopts TMS320C5420 chip.It is the DSP chip with the highest integration and the lowest power consumption.ARM uses Cortex_A8chip as the core of the S5PV210 chip.2.Determine the communication interface of power quality analyzer: serial port,USB3.0 interface,Ethernet interface,SD card interface,LCD interface,HPI interface;and the power quality analyzer for the first time to use the USB3.0 interface,greatly enhance the transmission rate of data storage;LCD uses a 9.7 inch TFT touch screen,man-machine combination interactive interface,has brought great convenience to the work of the operation.Combined with the electrical characteristics and communication characteristics of the communication interface chips above,the circuit connection diagram between the communication interface chips and the main controller S5PV210 is designed.3.Linux operating system is built on ARM platform,developed the communication interface software driver,realizes the data communication between DSP and ARM data transmission and analyzer and external,completed the software design and programming on the platform of QT software and man-machine interface,human-computer interaction function to achieve the real-time display and data analyzer the.4.The communication interface of the analyzer is tested and the communication requirements of the power quality analyzer can be reached.Through the above work,the configuration of the communication interface of the power quality analyzer is completed,which provides a variety of choice for the communication mode of the power quality analyzer. |
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