Functional board card with multiple input and output signals

Abstract

The invention relates to functional board cards for collecting, processing, transferring and outputting input and output signals, in particular to a functional board card with multiple input and output signals, which solves the problem that the functional board card with the existing input and output signal has a single input and output signal variety. The functional board card comprises a connector J1 for external connection; the connector J1 is accessed to an analog input signal, a digital quantity input signal and a PWM input signal; the analog input signal is sent to the single chip microcomputer through an analog input processing circuit; the digital quantity input signal is sent to the single chip microcomputer through a digital quantity input processing circuit; the PWM input signalis sent to a CPLD chip through a PWM input processing circuit; the single chip microcomputer and the CPLD chip are connected through a parallel data bus; the single chip microcomputer is connected with the connector J1 through an analog output processing circuit; the CPLD chip is connected with the connector J1 through a PWM output processing circuit; and the CPLD chip is connected with the connector J1 through a digital quantity output processing circuit. The functional board card with multiple input and output signals in the invention is particularly suitable for rail traffic traction converter control systems.

Description

technical field [0001] The invention relates to a functional board for collecting, processing, transferring and outputting input and output signals, in particular to a functional board for various input and output signals. Background technique [0002] As a functional board for input and output signal transfer, the function board of input and output signals is widely used in the field of data acquisition and control, especially in the application of data acquisition of control signals of rail transit traction converter systems. The existing functional boards for input and output signals are all standardized products, and the types of input and output signals are single. For example, the input and output signals are all analog signals or digital signals; while in the converter control system, it is necessary to collect or output The control signals are diverse, and the collected input signals include not only analog quantities, but also signals such as pulse quantities and sw...

AI Technical Summary

Problems solved by technology

[0003] The present invention solves the problem that the existing input and output signal function boards have

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