2.1 multifunctional leakage switch type
This type of electrical fire monitoring system can complete the real-time monitoring of residual current, ambient temperature, overvoltage and undervoltage and other related parameters of the line. The characteristics of this system are relatively few boundaries and a wide range of protection, but the disadvantage is that the structure is very complicated, resulting in relatively high failure rate and construction cost of the whole system.
2.2 separation configuration integration type
This type of electrical fire monitoring system is different from the separate configuration type, which is characterized by integrating the fire control center into a whole. The separate configuration integrated electrical fire monitoring system optimizes the bus configuration and directly calls the bus of the ordinary fire alarm system, so it is unnecessary to reconnect and control the upper computer. The separated and integrated electrical fire monitoring system greatly optimizes the intermediate links of the whole system and the internal resources of the system, which makes the electrical fire monitoring system have more obvious advantages than other systems in maintenance cost and operation management. It is worth noting that this type of electrical fire monitoring system has high complexity, good accuracy and complete system integration, which easily leads to the problems of missing and false alarm in the process of complex field work, which has a great impact on the whole electrical fire monitoring system. Therefore, this type of detector needs to be further improved, and can only be used in some simple and stable scenes at present.
2.3 separation configuration type
The electrical fire monitoring system with separated configuration is different from the integrated one with separated configuration. This type mainly separates the system from all kinds of detection sensors, which is very convenient in reconstruction and construction and has obvious advantages.
However, the disadvantage is that more control cables and shielded signal lines are often needed, and this type of detector often needs the attention of technicians when it is applied to intelligent fire protection systems.
3 Monitoring system for smart electricity use
3.1 terminal equipment for smart electricity use
The terminal equipment of smart power consumption mainly works by comprehensively monitoring the electrical parameters in the whole system. The monitored parameters mainly include temperature, three-phase current value and residual current value, so as to realize the 24-hour detection of the whole current working parameters. Once these parameters are found to have a large deviation from the reasonable range, the monitoring system immediately gives an alarm, and the staff should conduct investigation after receiving the prompt to avoid the occurrence of fire. In general, the terminal system of smart electricity mainly includes the following parts: current transformer, temperature sensor, converter and management system. Among them, current transformers are divided into current transformers that collect residual current values and transformers that collect three kinds of current values; The function of temperature sensor is mainly to collect the temperature state of current line and environment; The converter is mainly responsible for converting analog semaphores into digital semaphores; The core of management is to control and manage the whole system of smart electricity consumption, such as data processing, current transmission and data sampling, to ensure that all branches in the system can cooperate with each other and ensure the overall good operation.
3.2 Analysis report based on big data
In the process of building a smart fire protection system, the goal should be distributed, intelligent and networked. From the operation of the electrical system, the smart fire protection system must be able to identify the electrical safety hazards of the electrical system independently to complete the corresponding work, and the fire can be monitored in real time by building a fire identification system. Technicians can take the maximum temperature value and current load value allowed by the lines and equipment in the electrical monitoring system as alarm preset values, analyze the historical records of the electrical monitoring alarm system by using the big data platform, find out the inherent laws contained in many alarm records, and formulate relevant solutions to eliminate the fire hazards of the system. It can be said that the application of big data is the most obvious difference between modern smart fire protection and traditional fire protection system.