A power data acquisition system based on fpga

Abstract

The invention provides an FPGA-based power data collecting system. The FPGA-based power data collecting system comprises an FPGA module, an analog quantity data collecting module, a network module, an EEPROM (electricity erasable programmable read-only memory) module and a switching value collecting module, wherein the analog quantity data collecting module is used for processing and transmitting analog input signals to the FPGA module; the switching value collecting module is used for processing and transmitting switching value signals to the FPGA module; the FPGA module is used for processing the analog input signals and the switching value signals; the EEPROM module is used for storing the configuration information of the network module; the network module is used for achieving data transmission between the system and the outside. Due to the fact that FPGA serves as a master control unit, the FPGA-based power data collecting system can greatly improve the data collecting speed as well as the A / D (analog / digital) conversion precision, has the advantages of being simple in design, low in cost and power consumption, small in size and the like, can be modified on site according to different requirements and further can greatly improve the success rate and the flexibility of system design.

Description

technical field [0001] The invention relates to an electric power data acquisition system, in particular to an FPGA-based electric power data acquisition system. Background technique [0002] The rapid development of my country's economy has led to a large demand for electricity in various industries. Therefore, there is an urgent need for scientific management of power supply. As a basic link in the management of power supply and demand, the power data acquisition system plays an important role. The accuracy, real-time and reliability of the data acquisition system have put forward higher requirements. [0003] The traditional design method is to use MCU or DSP to control the A / D conversion of data acquisition through software, which will inevitably interrupt the operation of the system frequently, thereby weakening the data computing ability of the system and limiting the speed of data acquisition. Compared with MCU and DSP, FPGA has obvious advantages in multi-channel par...

AI Technical Summary

Problems solved by technology

Affected by instruction cycle and processing speed, single-chip microcomputer is difficult to control the array composed of multiple channels and A / D, and its bus width is limited. For multi-channel data acquisition, there is a bottleneck of insufficient data bandwidth.

If multiple single-chip microcomputers are used in parallel, it will cause fatal shortcomings such as complex system, high power consumption, and large volume.

Although DSP can realize relatively high-speed data acquisition, while its speed increases, it also increases the hardware cost of the system. In particular, various functions of DSP need to be realized by running software, and its time consumption is spent in the entire sampling time. The proportion is too large, so its execution speed and efficiency are not high

Images