Kiến thức
CCTV system
Section 4: CCTV system: What is the image sensor?
Section 3: Principle of camera
Section 2: CCTV system: Principle of Eyes
Section 1: What is CCTV system?
BMS system
Section 3: BMS system: Software of system
Section 2: BMS system: Point list
Section 1: What is BMS system?
Access control system
PA system
Fire alarm system
Section 1: What is fire alarm system?
Smart home solution
Section 1: What is fire alarm system?
Meper,01-09-2015
Fire alarm systems are one of the most important components of the project by reasons related to the health and lives of many people. That is the first criteria when authorities considered for projects in use or not. So understanding the fire alarm system is essential knowledge for everyone.
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Fire alarm systems are one of the most important components of the project by reasons related to the health and lives of many people. That is the first criteria when authorities considered for projects in use or not. So understanding the fire alarm system is essential knowledge for everyone.
Concept of fire alarm system
Fire alarm systems are systems with a limited number of devices to work together to detect and give warning of incidents of fire and explosion through the warning device shown by audio, image as fire, smoke, carbon monoxide or other emergencies are present. When incidents of fire and explosion occurs, the system will be activated automatically by a number of smoke detectors, heat detectors, light probes, probe mixture (smoke + heat + heat or fire) or by handmade buttons.
The types of fire Alarm Systems
- What is the Conventional Fire Alarm Systems?
As the fire alarm system with alarm, handmade buttons mounted on some areas (zone) to alert the people to know the area (zone) is incident. The warning signal through devices such as speakers, horn, lights will be activated throughout the system.
People often use conventional fire alarm systems for projects of small and medium-scale investment costs low and narrow region on alert.
- What is the Addressable Fire Alarm Systems ?
As the fire alarm system with detectors and handmade buttons mounted on the loop (loop), with each element mounted on the ring there will be a separate address. So when the fire incident, the signal from any element of the centers had reported accurately identify the address. The loop is a 2-wire signal line, connected from the output of the control center, through the device and return to the ring that input. Purpose designed loop (loop) is closed to the system is operating normally when the incident off the loop.
The principle of a warning of a addressable fire alarm system similar to a conventional fire alarm systems, except that the fire control panel can determine the exact address where the detector or push button craft launched warning signals. The control center is programmed to display the information needed when the warning system. The big difference of addressable fire alarm system versus conventional fire alarm system is the warning signal broadcast on speakers, horn, lights sent from the control center to the top loop (loop) through the address communication. Communication Ministry will address metabolic control signals from the central control signal speakers, horn and lights.
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