A diagnosable multi-type signal acquisition module

Abstract

The invention discloses a diagnostic multi-type signal collecting module which is characterized by comprising a power supply submodule, a comprehensive output channel control submodule, a signal collecting processing submodule, a communication monitoring submodule and an external disconnection and short circuit diagnosis submodule. A comprehensive power supply output control unit of the comprehensive output channel control submodule is electrically connected with an output diagnosis unit, and the output ends of the comprehensive power supply output control unit output 24V, 0V or 12V voltage to an external device. A double-line comparison collection unit of the signal collecting processing submodule respectively collects analog and switching values output by the external device, the input end of an FPGA processing unit is electrically connected with a crystal oscillation diagnosis unit and the output end of the output diagnosis unit, and the output end of the FPGA processing unit is electrically connected with the comprehensive power supply output control unit and is respectively in bi-directional electric connection with the communication monitoring submodule, the external disconnection and short circuit diagnosis submodule and the double-line comparison collection unit. The external disconnection and short circuit diagnosis submodule is electrically connected with the output end of the double-line comparison collection unit. The diagnostic multi-type signal collecting module has the advantages of performing multi-type signal collection and internal diagnosis and enhancing circuit safety.

Description

technical field [0001] The invention belongs to the automation technology of a ship engine room, in particular to a diagnosable multi-type signal acquisition module. Background technique [0002] Since the development of modern ships, the functions of the ship monitoring module have been developed to a relatively mature and comprehensive level. For more and more types and quantities of sensor signals, more acquisition channels are required to realize comprehensive monitoring in the ship. [0003] Commonly used control signal types include digital input (passive contact), digital output (0-24V) of the control actuator, and 4-20mA sensor current signal. In real ship applications, the acquisition boards of these three types of signals all need spare parts, but the existing boards are often of different models due to different manufacturers. If the hardware of the three boards can be unified, the number of spare parts can be saved and the production cost can be reduced. In or...

AI Technical Summary

Problems solved by technology

In real ship applications, these three types of signal acquisition boards need spare parts. However, due to different manufacturers, the existing boards often have different models.

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