Universal-type water leakage detection alarm system

Abstract

The invention discloses a universal-type water leakage detection alarm system, and the system comprises a group of I / O modules, a main PLC, a standby PLC, a protocol converter, and a repeater. The I / O modules are externally connected with a water leakage detection sensor, and can collect a switching quantity signal and an analog signal, convert the collected signals into other types of signals and output the signals to the protocol converter. The protocol converter carries out the protocol conversion of the signals, and outputs the signals to the main PLC and the standby PLC. The main and standby PLCs carries out the analysis processing of the signals, and then transmits the signals to the repeater. The repeater receives the signals, displays the water leakage information and transmits a sound and light alarm signal synchronously. The system is advantageous in that the system employs a distributed bus, and can be suitable for different types of water leakage detection sensors, and is practical for the water leakage detection of the ship's space; the system can achieve the fault diagnosis of each sensor line according to the data inputted by the water leakage detection sensor, and improves the stability; the system achieves the data synchronization of different types of PLCs through the process interaction of data at a conversion module, and improves the configuration flexibility.

Description

technical field [0001] The invention relates to a marine water ingress detection and alarm system, in particular to a general-purpose water ingress detection and alarm system for detecting and alarming the water ingress of a ship. Background technique [0002] The purpose of installing a water ingress detection and alarm system on a ship is to keep abreast of the accidental water ingress in the ship's cabin, so that corresponding measures can be taken in time to ensure the safety of life and property. The water ingress detection and alarm system integrates monitoring, alarm and display. When a certain cabin enters water, the sensor probe will send a switch signal or a continuous analog signal to the control box. Issue the corresponding sound and light alarm and continuously indicate or display the corresponding cabin number. [0003] At present, the water inflow detection and alarm systems at home and abroad are basically only developed for a single type of water inflow det...

AI Technical Summary

Problems solved by technology

[0003] At present, the water inflow detection and alarm system at home and abroad is basically only developed for a single type of water inflow detection sensor, and the acquisition and processing of the switch sensor and the analog sensor are completely separated.

At the same time, the switch type water ingress detection sensor cannot monitor the line fault. If the cabin is flooded when the sensor line is faulty, it will cause great hidden dangers to the safety of ship operation.

In addition, the system uses a single type of PLC, with limited options and low economic benefits

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