Fire disaster early-warning system for unmanned communication machine room

Abstract

The invention discloses a fire disaster early-warning system for an unmanned communication machine room. The system comprises an AC anomaly detection circuit connected with a power-frequency power supply network, a breaker module connected with the power-frequency power supply network, a standby power supply module used for supplying power to the internal circuit of a cabinet, a power-switching circuit module connected with a power-frequency power supply module and the standby power supply module, a master control module, a linear thermal detector module used for monitoring the temperature of a cable under a conductive floor inside the machine room, an infrared beam smoke-sensing fire detector module used for monitoring the burning smoke of array computers arranged in parallel inside the machine room, and an air conditioner exceptional power utilization alarm module used for monitoring the power utilization condition of an air conditioner. According to the technical scheme of the invention, a fire disaster in the machine room and caused by different reasons can be timely found out at the initial stage. Meanwhile, protection measures are automatically taken and the alarm is conducted.

Description

technical field [0001] The invention relates to a fire early warning system for an unmanned communication machine room. Background technique [0002] In recent years, there have been frequent fire accidents in electrical appliances and cables in the telecommunication system, often caused by a piece of equipment failure or a fire caused by a cable that spreads to the entire network. Communication equipment is expensive, resulting in huge direct economic losses. The communication interruption caused by the fire and the indirect loss caused by it cannot be ignored. The communication system has a huge structure. In the decoration process of the communication room, a large number of combustible materials such as wood, plywood, and plastic are used, and many of its electrical equipment are often accompanied by static electricity. , sparks, electric arc and high surface temperature, the transmission cables are densely distributed in every corner, so the probability of causing a fir...

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Problems solved by technology

According to the cause of the fire in the computer room, the power frequency power intrusion is mostly caused by the power supply current intrusion. For example, the aging of the line and the crossover of two lines cause a fire accident. ;When the power frequency electricity is in contact with the front voltage and the external power invades, the withstand voltage level is not enough, the short circuit is instantaneous, the insulation skin is broken down by the high voltage, and the communication equipment causes a fire; various spikes in the power supply system interfere, and the distorted voltage may cause communication equipment components damage, or even cause a fire

A large number of cables are laid under the anti-static floor in the computer room, including data cables, AC power supply cables, low-voltage DC power supply cables, etc. All kinds of cables are laid and displayed together, causing fire hazards. The heat of the power supply cables will cause the insulation performance of the cables to decline. Short circuit, the instantaneous increase of current in the cable will generate a lot of heat, causing the insulation layer to burn and cause a fire

The inside of the cabinet contains a large number of circuit boards, and the electronic components on the circuit boards emit a large amount of heat. The heat heats the air in the cabinet and is discharged from the top of the cabinet. When a short circuit occurs in the cabinet due to the aging of electronic components, a large amount of heat will be generated. , causing a fire inside the cabinet. In the initial stage of a fire inside the cabinet, it will not cause a significant increase in the ambient temperature inside the computer room. The temperature sensor that is conventionally installed to detect the ambient temperature cannot directly detect fire hazards.

In addition, in order to ensure a constant temperature in the computer room, the computer room is equipped with a high-power air conditioner to cool down. Uninterrupted operation will cause the aging of air conditioning components, and then burn and cause a fire

The above are just a few common types of safety hazards that cause computer room fires. Computer room fires have their own characteristics. Conventional technical means cannot detect the initial stage of fire very well. At this time, it is difficult for firefighting and the loss is small. The fire has obvious sound, light and heat stages, it is very difficult to put out fires, and the losses are often huge

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