With the improvement of the national economy and social development, the social fire safety awareness will be greatly improved and there will be huge market space. The annual demand for fire smoke is nearly 20 million, and the fire alarm equipment market accounts for 14.5% of the entire fire industry The industry maintains a growth rate of 15% -20%.
The intelligent smoke detection alarm is a common fire warning device. It is developed by using the smoke generated during a fire to change the light transmission characteristics. It can accurately sense the smoke generated by the fire at the early stage of the fire and quickly warn. It is suitable for smoke detection and early warning in places such as hotels, restaurants, office buildings, teaching buildings, banks, warehouses, libraries, computer rooms, and power distribution rooms.
With the development of artificial intelligence and the Internet of Things, the smart smoke sensor based on the NB-IoT wireless standard has long-distance wireless communication capabilities, overcoming the shortcomings of the traditional independent smoke sensor that cannot be networked and the trouble of wired smoke sensor wiring. Can greatly improve the efficiency and intelligent level of fire protection construction.
At present, the mainstream smart smoke detectors in the market are photoelectric smoke detectors. The photoelectric smoke detectors are divided into a dimming type photoelectric smoke detector and a scattered light type photoelectric smoke detector.
Dimming type photoelectric smoke fire detector
Under normal circumstances, the light-receiving device receives a certain amount of light emitted by the light-emitting device; while in a fire, a large amount of smoke enters the detection chamber of the detector. When the current decreases, the detector sends an alarm signal.
Scattered light type photoelectric smoke fire detector
Under normal circumstances, the photoelectric receiving device cannot receive the light emitted by the light emitting device, and thus does not generate photocurrent. When a fire occurs, when the smoke enters the detection room, due to the smoke particles, the light emitted by the light-emitting device is diffused. This diffused light is received by the photoelectric receiving device, which changes the impedance of the photoelectric receiving device and generates a photocurrent. Thus, the function of converting the smoke signal into an electrical signal is realized, and the detector emits an alarm signal.
At present, the light sources of smart photoelectric sensors commonly used in the market are LED and laser light sources. Infrared LED light source is used for the smart smoke sensor transmitter, which has the disadvantages of large power consumption, low electro-optical conversion efficiency and low brightness. We adopts independently developed high-quality laser light source. The appearance adopts copper material to design the heat dissipation effect is better. Compared with traditional frequency doubling lasers and LED light sources, it has higher peak power and lower power consumption, and does not drift due to temperature changes, and its performance is more reliable.
The dot laser module also has a narrow emission pulse width, does not require temperature and optical compensation, and has a wider working environment advantage and higher reliability than traditional LED emission light sources. At the same time, it has a small size,low price, long life, low power consumption and fast frequency tuning and other advantages, We look forward to working with gas detection application partners.
Dot laser module can be used in smoke detection alarm, but also in PM2.5 detection, engineering alignment, medical lighting, positioning, designated marking, sweeping robot and other fields, it is an ideal invisible light source.
Tyson offer red laser module,green laser module,blue laser module and IR laser module, please feel free to contact us.
