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Lesson 4 Physical Security - Motion Sensor - Passive Ultrasonic Sensor - Photoelectric System - Ultrasonic - Ultrasonic Motion Sensor - Vibration Sensor.

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Presentation on theme: "Lesson 4 Physical Security - Motion Sensor - Passive Ultrasonic Sensor - Photoelectric System - Ultrasonic - Ultrasonic Motion Sensor - Vibration Sensor."— Presentation transcript:

1 Lesson 4 Physical Security - Motion Sensor - Passive Ultrasonic Sensor - Photoelectric System - Ultrasonic - Ultrasonic Motion Sensor - Vibration Sensor

2 Purposes of intrusion detection alarm system are: - To economize - To substitute in place of other security measures. - To supplement by providing additional controls.

3 Basic principles of operation of intrusion detection system are: - Breaking an electrical circuit. - Interrupting a light beam. - Detecting sound. - Detecting vibration. - Detecting a change in capacitance due to penetration of an electrostatic field.

4 Types of alarm systems: - Metallic foil or wire - Photoelectric or electric eye - Audio detection devices - Vibration detection devices - Microwave motion detection device - Ultrasonic motion detection devices - Capacitance of electrostatic detection device

5 Other Sensors - Penetration sensors - Used on windows, doors, ceilings, walls and other entry areas. - Duress sensor - It is used to call for assistance of other personnel.

6 Types of alarm detection systems are: - Local alarm system - Auxiliary system - Central station system - Proprietary system

7 Three basic parts of an alarm system: Three basic parts of an alarm system: - Sensor triggering device. - Circuit which carries message to the signalling apparatus. - A signalling system or device, sometimes called “Annunciator”.

8 Function of an alarm system could be one or more of the ff: - Detection of fire. - Detection of intrusion. - Emergency notification. - Monitoring of equipment or facility conditions. 90%-98% of all alarms are false.

9 Most common causes of false alarms are: - User negligence. - Poor installation or servicing. - Faulty equipment.

10 Monitoring systems. Closed circuit television (CCTV) system consists of the ff: - Television camera - A monitor - Connecting circuits - Power source

11 Western Burglar And Fire alarm Association - Self system right. - Don’t used space protection indiscriminately - Instruct subscriber on proper use of alarm - Reinstruct subscriber at frequent intervals - Train & retrain alarm company employees on procedures - Maintain system in proper working condition.

12 _ _ EnD _ _ _ _ EnD _ _

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