CPCI bus standard-based multi-function acquisition control device

Abstract

The invention discloses a CPCI bus standard-based multi-function acquisition control device. The CPCI bus standard-based multi-function acquisition control device includes an industrial computer CPCI bus standard-based acquisition control card, an SSI signals acquisition card which can complete synchronous acquisition of six-path synchronous serial interface signals, and a DAC data processing card which can complete 16-path digital-to-analog conversion; the acquisition control card includes a CPCI bus connection module, a power source module, a PCI bridging chip module, an FPGA module, a general interface module and an external interface module; the SSI signal acquisition card includes six SSI modules, an FPGA module and a general interface; the DAC data processing card includes four DAC modules, a power amplification circuit, an FPGA module and a general interface; and the SSI signal acquisition card and the DAC data processing card are installed on the acquisition control card through the general interfaces, so that the SSI signal acquisition card and the DAC data processing card can communicate with the FPGA of the acquisition control card and be connected with the external interface of the acquisition control card. The whole device has excellent extendibility and can satisfy requirements for multi-functional data processing of industrial control sites.

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 based on the CPCI bus standard. Background technique [0002] Driven by the rapid development of microelectronics, computer and communication technology, computer measurement and control system has become the mainstream measurement and control system of today's industrial control. Especially in chemical industry, metallurgy, electric power, automatic machine tools, integrated production of industrial products and other fields, it has a wide range of applications, and its importance in industrial production is becoming more and more prominent. [0003] In industrial measurement and control systems, industrial computers often output digital or analog signals to peripheral equipment terminals according to requirements, so as to control actuators in the control link, such as DC mo...

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Problems solved by technology

[0004] At present, the acquisition and control device based on the CPCI bus standard has defects such as slow speed, low precision, single output signal form and acquisition and output capability, and poor function scalability. Therefore, designing a multifunctional acquisition and control device based on the CPCI bus standard can be The measurement and control system has a variety of acquisition and control functions at the same time, and the acquisition rate of the whole device is fast, the output accuracy is high, and the function is scalable. According to different needs, the corresponding function module boards are designed, and there is no need to reinstall the entire acquisition control card. design, greatly reducing R&D costs

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