Digital multifunctional special fire water supply device controller

Abstract

The invention relates to a digital multifunctional special fire water supply device controller, comprising a programmable logic controller, a pressure sensor and a PID adjustor; wherein, the programmable logic controller is provided with a steering instruction receive port, a fire pump control port and a frequency conversion control port, the steering instruction receive port is used to receive digital steering instructions, the fire pump control port is used to be connected to a fire pump main control loop to control startup and stop of the fire pump, and the frequency conversion control port is used to be connected to a frequency converter to control operation of the frequency converter; the pressure sensor is used to be connected to a fire water supply network to detect network pressure and generate simulated pressure signals; the PID adjustor is used to process the simulated pressure signals and then transmit the signals to the frequency converter to control output frequency of the frequency converter and convert simulated pressure signals into digital signals and transmit the signals to the programmable logic controller; the controller further comprises a analog-to-digital conversion module, a display screen logging module, a network interface module and / or a short text message outgoing module. The invention can realize digitalized control and improve accuracy of the control.

Description

technical field [0001] The present invention relates to the control technology of fire-fighting water supply, in particular to a digital multifunctional special-purpose fire-fighting water supply equipment controller. Background technique [0002] The fire protection system is an indispensable facility in all kinds of buildings, and the fire water supply equipment is an important part of the fire protection system. Among them, the controller plays an important role as the control center of the fire water supply equipment. The main function of the fire water supply equipment controller is to identify and process the control instructions when receiving the control instructions, control the operation of the main control circuit of the fire pump, start or stop the fire pump to supply water to the fire water supply pipe network, and at the same time, according to the control instructions Control the frequency converter, the frequency converter is connected to the main control ci...

AI Technical Summary

Problems solved by technology

[0003] In the past, the controller of fire water supply equipment was composed of a single-chip microcomputer. The disadvantage is that the anti-interference ability is poor, and it is easy to "crash" during operation.

Moreover, because the program is often solidified in the memory and there is no simple programming device, it is inconvenient to modify the program. If you want to modify the program at the construction site, it is impossible. You can only unplug the memory and bring it back to the factory for processing, reducing ease of operation

[0004] At present, Program Logic Controller (Program Logic Control; hereinafter referred to as: PLC) is widely used as the controller of fire water supply equipment, but this technology still has defects such as single function, poor accuracy and reliability, and can only complete the process control of general actions

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