LIGHTFAIR INTERNATIONAL 2018
Exhibition Name: LIGHTFAIR INTERNATIONAL 2018
Exhibitor Name: Zhongshan Alltop Lighting Co.,Ltd
Booth NO.: 1475A
Exhibition Date: May 8th to 10th
Address: McCormick Place, Chicago, IL USA
MORE
How to apply fire monitoring system in intelligent buildings
by：ALLTOP
2021-04-13
1 Foreword In order to create a safe, comfortable and convenient living and working environment, to achieve equipment monitoring and energy saving [1], the intelligent building adopts a large-span frame-type building structure, and uses the integrated wiring system as the link to configure the building equipment automation system and office automation system , Communication automation system. It is generally believed that the fire monitoring system is a subsystem of the equipment automation system in intelligent buildings, and is the core of the intelligent building fire safety system and the key to the integration of the fire protection system.
Based on this, this article analyzes and explores the basic structure and application form of the current fire monitoring system, combined with the characteristics of intelligent buildings and their fire safety requirements, and explains the application status and development trend of fire monitoring systems in intelligent buildings.
2 The basic structure and performance characteristics of the fire monitoring system. The national standard 'Code for Design of Automatic Fire Alarm System' (GB50116-1998) stipulates that the fire monitoring system generally consists of fire detectors, input and output modules, various fire alarm controllers and Fire-fighting linkage control equipment, etc. are jointly constituted, and its basic composition principle. As the fire information detection and data processing methods, the coordination between the fire detector and the fire alarm controller, etc., determine the function and structure of the fire monitoring system, the fire monitoring system is based on the connection between the fire detector and the controller. , The fire information processing methods and network communication capabilities of the fire alarm controller, and the technical characteristics based on the system design, etc., can be divided into the following basic structural forms:
2.1 Multi-wire system structure The multi-wire system is a traditional system developed based on the point-to-point control method of the industrial production process. Its structural feature is that the fire alarm controller uses DC signals to inspect various fire detectors, fire detectors and fire The hard-wired corresponding connection relationship is adopted between the alarm controllers. The general system wiring system is an+b (n is the number of detectors; au003d1, 2; bu003d1, 2, 4). With the development of microelectronics technology, the advanced multi-wire system adopts digital coding technology, and the minimum wire system is n+1. The multi-wire system has been gradually eliminated due to the complexity of engineering design, construction wiring and system maintenance.
2.2 bus system structure The core of the bus system structure is the use of digital pulse signal inspection and data compression transmission, and the protocol communication between the fire detector and the fire alarm controller and the entire system are realized through the transceiver code circuit and the microprocessor. Monitoring and control. The structural feature of the bus system is that the system wire system is an+b (n is the number of detectors; but au003d0; bu003d2, 3, 4, etc.), generally a two-bus or three-bus system, which reflects the intelligent building The technical characteristics of system integration and integrated wiring; when the fire detector and the fire alarm controller, various functional modules and the fire alarm controller are connected by bus, it is called a full bus system, and its engineering wiring is flexible. Fire-fighting equipment can be linked through module linkage or hard-line linkage. The system has strong anti-interference ability, low false alarm rate and low total power consumption. 2.3 Centralized intelligent system structure The centralized intelligent system structure generally uses a bus system and a large-capacity general fire alarm controller. Its characteristic is that the fire detector mainly completes the collection and transmission of fire parameters. The fire alarm controller uses computer technology to realize fire signal identification and data Centralized processing functions such as storage, system inspection, alarm sensitivity adjustment, fire determination, and fire-fighting equipment linkage, and are equipped with regional displays to complete zoned sound and light alarms. Obviously, the centralized intelligent system based on the bus system can meet the basic requirements of system integration in intelligent buildings. However, the fire alarm controller in the system must process the data returned by each detector in a timely manner and complete a series of setting functions. When the building is large in scale, there are many detectors and fire-fighting equipment, a single host may have complex and huge system application software. The fire detector inspection cycle is too long, the reliability of the system is reduced, and the maintenance is inconvenient.
2.4 Distributed intelligent system structure The distributed intelligent system structure is formed on the basis of the advantages of centralized intelligent system. It returns the basic processing of fire detection information, environmental compensation, probe pollution monitoring and fault judgment from the fire alarm controller to The on-site fire detector eliminates the burden of a large amount of signal processing from the controller, so that it can calmly realize the functions of fire pattern recognition, system inspection, equipment monitoring, and data communication, which improves the speed, stability and reliability of system inspection. Obviously, the distributed intelligent system structure emphasizes the effective data transmission on the bus, and puts forward higher requirements on the timeliness and reliability of the fire detector design. The application-specific integrated circuit design (ASIC) technology is usually used to reduce the high-performance detection in the distributed intelligent system. The cost of the device can improve the performance-price ratio. Obviously, the distributed intelligent system structure meets the performance requirements of intelligent building system integration ideas and integrated wiring.
2.5 Network communication system structure The network communication system structure can be formed on the basis of centralized intelligence or distributed intelligence system. The special feature is the application of computer data communication technology to fire alarm controllers, so that the controllers can pass Ethernet and TokenRing , TokenBus and other communication protocols, as well as dedicated communication lines or buses (RS232, 422 bus, 485 bus) to exchange data information, realize the function of fire monitoring system level function setting, remote data call management and network communication services. Obviously, the network communication system structure can be realized by a dedicated communication network or based on open fieldbus technology, coupled with a distributed intelligent data processing method, which can adapt to the development needs of high-performance fire monitoring systems and serve as an urban fire protection data information network. System construction lays the foundation and meets future development needs.
Based on this, this article analyzes and explores the basic structure and application form of the current fire monitoring system, combined with the characteristics of intelligent buildings and their fire safety requirements, and explains the application status and development trend of fire monitoring systems in intelligent buildings.
2 The basic structure and performance characteristics of the fire monitoring system. The national standard 'Code for Design of Automatic Fire Alarm System' (GB50116-1998) stipulates that the fire monitoring system generally consists of fire detectors, input and output modules, various fire alarm controllers and Fire-fighting linkage control equipment, etc. are jointly constituted, and its basic composition principle. As the fire information detection and data processing methods, the coordination between the fire detector and the fire alarm controller, etc., determine the function and structure of the fire monitoring system, the fire monitoring system is based on the connection between the fire detector and the controller. , The fire information processing methods and network communication capabilities of the fire alarm controller, and the technical characteristics based on the system design, etc., can be divided into the following basic structural forms:
2.1 Multi-wire system structure The multi-wire system is a traditional system developed based on the point-to-point control method of the industrial production process. Its structural feature is that the fire alarm controller uses DC signals to inspect various fire detectors, fire detectors and fire The hard-wired corresponding connection relationship is adopted between the alarm controllers. The general system wiring system is an+b (n is the number of detectors; au003d1, 2; bu003d1, 2, 4). With the development of microelectronics technology, the advanced multi-wire system adopts digital coding technology, and the minimum wire system is n+1. The multi-wire system has been gradually eliminated due to the complexity of engineering design, construction wiring and system maintenance.
2.2 bus system structure The core of the bus system structure is the use of digital pulse signal inspection and data compression transmission, and the protocol communication between the fire detector and the fire alarm controller and the entire system are realized through the transceiver code circuit and the microprocessor. Monitoring and control. The structural feature of the bus system is that the system wire system is an+b (n is the number of detectors; but au003d0; bu003d2, 3, 4, etc.), generally a two-bus or three-bus system, which reflects the intelligent building The technical characteristics of system integration and integrated wiring; when the fire detector and the fire alarm controller, various functional modules and the fire alarm controller are connected by bus, it is called a full bus system, and its engineering wiring is flexible. Fire-fighting equipment can be linked through module linkage or hard-line linkage. The system has strong anti-interference ability, low false alarm rate and low total power consumption. 2.3 Centralized intelligent system structure The centralized intelligent system structure generally uses a bus system and a large-capacity general fire alarm controller. Its characteristic is that the fire detector mainly completes the collection and transmission of fire parameters. The fire alarm controller uses computer technology to realize fire signal identification and data Centralized processing functions such as storage, system inspection, alarm sensitivity adjustment, fire determination, and fire-fighting equipment linkage, and are equipped with regional displays to complete zoned sound and light alarms. Obviously, the centralized intelligent system based on the bus system can meet the basic requirements of system integration in intelligent buildings. However, the fire alarm controller in the system must process the data returned by each detector in a timely manner and complete a series of setting functions. When the building is large in scale, there are many detectors and fire-fighting equipment, a single host may have complex and huge system application software. The fire detector inspection cycle is too long, the reliability of the system is reduced, and the maintenance is inconvenient.
2.4 Distributed intelligent system structure The distributed intelligent system structure is formed on the basis of the advantages of centralized intelligent system. It returns the basic processing of fire detection information, environmental compensation, probe pollution monitoring and fault judgment from the fire alarm controller to The on-site fire detector eliminates the burden of a large amount of signal processing from the controller, so that it can calmly realize the functions of fire pattern recognition, system inspection, equipment monitoring, and data communication, which improves the speed, stability and reliability of system inspection. Obviously, the distributed intelligent system structure emphasizes the effective data transmission on the bus, and puts forward higher requirements on the timeliness and reliability of the fire detector design. The application-specific integrated circuit design (ASIC) technology is usually used to reduce the high-performance detection in the distributed intelligent system. The cost of the device can improve the performance-price ratio. Obviously, the distributed intelligent system structure meets the performance requirements of intelligent building system integration ideas and integrated wiring.
2.5 Network communication system structure The network communication system structure can be formed on the basis of centralized intelligence or distributed intelligence system. The special feature is the application of computer data communication technology to fire alarm controllers, so that the controllers can pass Ethernet and TokenRing , TokenBus and other communication protocols, as well as dedicated communication lines or buses (RS232, 422 bus, 485 bus) to exchange data information, realize the function of fire monitoring system level function setting, remote data call management and network communication services. Obviously, the network communication system structure can be realized by a dedicated communication network or based on open fieldbus technology, coupled with a distributed intelligent data processing method, which can adapt to the development needs of high-performance fire monitoring systems and serve as an urban fire protection data information network. System construction lays the foundation and meets future development needs.
Custom message
Related Products
