Multifunctional collection control device of peripheral component interconnection standard interface

Abstract

The invention discloses a multifunctional collection control device of a peripheral component interconnection standard interface. A first external interface and a second external interface of the multifunctional collection control device are respectively connected with an input end of an ADC (Analog-to-Digital Converter) module through respective PGA (Programmable Gain Amplifier) modules; a thirdexternal interface is connected with a third input end of the ADC module; an FPGA (Field Programmable Gate Array) module is connected with the third external interface through a DAC (Digital-to-Analog Converter) module and a differential module; the third external interface is connected with the FPGA module through a photoelectric coupling module; the FPGA module is respectively connected with the first and the second PGA modules, the ADC module and the third external interface; the FPGA module is finally connected to a PCI (Peripheral Component Interconnection) bus through a PCI bridge chip;and a power supply module supplies power to the device. By using the invention, data of three paths of analog input, two paths of differential encoding input and four paths of single-end digital input sensors are collected, and two paths of analog output, four pairs of differential output and two paths of digital output interfaces are provided to control peripheral equipment of multiple interfaces.

Description

technical field [0001] The invention relates to a data collection and control device in the field of industrial measurement and control, in particular to a multifunctional collection and control device with a standard interface for interconnecting peripheral components. Background technique [0002] With the rapid development of computer hardware and software technology and the increasing improvement of integrated circuit technology, industrial measurement and control technology has made great progress in my country, and has become the most dynamic branch in the field of computer technology applications. In recent years, computer measurement and control systems have become The most important measurement and control system in industrial and mining enterprises and industrial systems. [0003] In the application system of industrial measurement and control, a typical structure is to centrally collect various sensor signals to the industrial control computer, and then the compute...

AI Technical Summary

Problems solved by technology

At present, various acquisition devices based on the PCI interface have shortcomings such as small acquisition signal range, few input and output sensor interfaces, and limited sensor interfaces. A multifunctional signal acquisition control device capable of amplifying a large gain range is very necessary

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