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1、外文文獻(xiàn)The traditional electron safe alarm system mainly is through thesensor automatic detection, produces the alarm, sends out the alarmfrom the scene or reports to the police through the special electriccable near distan

2、ce, thus causes people's vigilance. Through manyyears research and the development, the present alarm apparatus maysay is the class is multitudinous. As a result of the alarm apparatusrapid development and the social

3、 each domain anxious need, can theapplication domain be more and more many, specially is rapidlydevelops in the civil domain. In recent years, the infrared alarmapparatus already became reports to the police a d

4、omain hot spot,because it used was not the obviously infrared acquisition, thereforehad the hiding to be good, characteristic and so on security. Theinfrared sensor is different according to the mechanism may div

5、ideinto the light survey and the hot survey. The light acquisition sensor is uses the photon effect the infraredacquisition aid. This kind of sensor speed of response quick, thesensitivity high, the examination

6、characteristic is good, but needs tocool, uses not conveniently. Moreover the component examinationsensitivity and the infrared wave length concern. The hot acquisitionsensor is uses hotly releases the electricity effect

7、 the infraredacquisition aid. After receives the goal the infrared radiationtemperature increment, the temperature elevates causes the sensorinterior certain physical quantities changes, through examinationphysical q

8、uantity change definite infrared emission. This kind ofsensor works under the room temperature condition, examinationsensitivity also very high, speed of response also very quick,moreover has nothing to do with

9、 with the infrared emission wavelength, may survey the power only to receive the background radiationthe limit, the application is very convenient. This article with their own far away, did not think this will happen eve

10、n in the top of his head. Home fires are the main reason for negligent not to take timely preventive measures .In some of our large and medium-sized cities, almost every day family fires, fire prevention

11、is so each family must always pay attention to. If your home based on the actual situation in advance to take simple fire prevention measures, a number of tragedies are entirely avoidable.Automatic fire alarm sy

12、stem is in order to inform the early detection of fire, and take effective measures to control and fight fires, and set in a building or other place of an automatic fire facilities, is that people with a powerful

13、 tool to fight the fire. Fire alarm system, fire detectors generally, regional centralized alarm alarm and composition; also be required under the project with various fire-fighting facilities and communication

14、devices linked to form a central control system. From automatic alarm, automatic fire fighting, evacuation guidance, system process shows that, fire up a complete file management, fire control system.Fire detectors are f

15、ire detection devices, as in the stage of fire will produce smoke with high temperature flame cells. The smoke, heat and light into electrical signals through the detector alarm or automatic fire ext

16、inguishing system to start fighting the fire in time. Area where the floor of alarm detector can send the signal into sound and light alarm, and fire on the screen showing the room number; while also monitorin

17、g the concentration of certain floors of alarm (if the monitor is located in the building fire Control Center) output signal or control automatic fire extinguishing system. Concentration of alarm signal is rec

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