Tunnel fire-fighting system based on DTU and safety control method thereof

Abstract

The invention discloses a tunnel fire-fighting system based on DTU and a safety control method thereof. The tunnel fire-fighting system is composed of water reservoirs, fire pumps, a PLC and DTU equipment. The DTU equipment is introduced into the tunnel fire-fighting system and is the novel equipment based on an Internet of Things technology, that is, the DTU equipment can enable equipment to be connected to the network and write programs to control the connected equipment at the same time; an SIM card is embedded in the DTU to enable a corresponding server to communicate with the DTU; and moreover, the DTU equipment supports all communication ports in the market, and communication with the DTU equipment can be realized through interfaces and protocols provided by the PLC. In addition, brands and models of the PLC or a controller adopted in multiple tunnel fire-fighting systems are different, the programs are not standard, even the control requirements cannot be met, and the renovation cost is increased, so that it is necessary to standardize all the tunnel system programs by adopting the programs based on the DTU equipment to reduce the costs through unified management and obtain comprehensive monitoring to ensure the sufficient water quantity in a high water reservoir.

Description

Technical field [0001] The invention belongs to the field of municipal fire protection, and in particular relates to a DTU-based tunnel fire protection system and a control method thereof, and is suitable for solving the problems of long-term no water storage in the high-position reservoir of the tunnel fire protection system and no timely feedback of the state information of the fire monitoring system. Background technique [0002] As the main throat of highway traffic, tunnels have complex structures, closed environments, narrow spaces, low visibility, many mobile vehicles, and fast speeds. Once a fire occurs, it is difficult to fight and rescue, often causing heavy casualties and property losses. Therefore, preventing the occurrence of malignant accidents or reducing losses as much as possible after the accident has made effective fire prevention and extinguishing measures more important. However, the current tunnel fire protection system has the following shortcomings: [0003...

AI Technical Summary

Problems solved by technology

[0003] (1) The optical fiber communication was interrupted, and the monitoring center could not judge the root cause of the problem in time, let alone obtain the liquid level of the high fire storage tank;

[0004] (2) The PLC control program is incomplete and there is no fault information processing: when the fire pump or deep well water pump or sensor fails, the PLC does not process the alarm, cannot execute the control program correctly, and cannot push the alarm information to the monitoring center;

[0005] (3) The sensor is disconnected, and the water level sensor (high-level reservoir level gauge, low-level reservoir level gauge, deep-water well level gauge) is disconnected, and the PLC cannot judge, so that it cannot prompt the monitoring center maintenance personnel to perform timely maintenance ;

[0006] (4) The status information lags behind, and the fire system signals (failure signals, insufficient water storage signals, etc.) cannot notify relevant operation and maintenance personnel in time

The status information of the scheme is lagging behind, and the fire system signals (failure signals, insufficient water storage signals, etc.) cannot notify relevant operation and maintenance personnel in time

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