welcome Presentation On Office security system

Group Members: Md. Emdadul Haque Md. Sahed Hasan Md. Samsul Arefin Khokan Das Amit Halder Md. Belayet Hossain

What is office security system? Office security system is the process, which will protect a office from natural and man made threat. This security system can alert office of a intrusion in any entry point of the Workers. It is also alert the peoples in an emergency.

Different parts of the Security system Fire Hazard protection Burglar protection Power backup system Electrical fault protection system

Control Unit: The control unit is connected with all the detection devices. The control unit is programmed to correctly know which part of the office the signal is coming from. Functions of the control unit are: Detecting the location of the threat Detecting the type of threat Following pre-planned tasks based on the information

Fire Hazard Protection System A fire hazard protection system protects a office against fire and fire related threats. The system can detect the presence of fire or fire related hazard and activate alarms to make the office aware of the threat.

Basic Functions of the Fire hazard Protection System The fire hazard protection system has the following function: 1. Detecting Fire 2. Detecting the position of the threat 3. Activating alarms (visual and audible) 4. Providing users with necessary information of the threat 5. Post detection actions (based on the severity of the threat) a. Activating the sprinkler system b. Informing fire service with auto dialer system c. Activating emergency lights for evacuation

Components of the Fire hazard Protection System: i. Detection Devices ii. Control Unit iii. Central Alarm System iv. Fire Extinguishing System v. Auto dialer

Fire Suppression Requirements Water supply Type of automatic fire extinguishing system Water-based fire extinguishing system Non-water-based fire extinguishing system Standpipes and fire department hose outlets

Component to Detect fire Smoke detector Smoke detectors are devices which can detect the presence of smoke. A smoke detector detects the smoke particles and send appropriate signal to the control unit. Heat Detector Heat detector is a device which can detect the temperature of the nearer area. In this device a hit sensitive resistor or capacitor is used which resistance or capacitance is changed with temperature.

Other component Fire Blankets: Fire blankets are blankets made of special fire resisting materials. If the escape path of the residence is blocked by fire, it becomes extremely difficult for the residents to escape without sustaining Water line pipe: This is very important when fire is occurred. Its help the fire brigade as internal source of water.

Position of Device in office

Sprinkler water supply system

Burglar Alarm System Burglar alarms are electronic alarms designed to alert the user to a specific danger. Sensors are connected to a control unit via low-voltage wiring or a narrowband RF signal which is used to interact with a response device. The most common security sensors are used to indicate the opening of a door or window or detect motion via passive infrared (PIR).

System of Burglar Alarming

Types of device PASSIVE INFRARED DETECTORS ULTRASON MICROWAVE DETECTORSIC DETECTORS PHOTO-ELECTRIC BEAMS GLASS BREAK DETECTORS VIBRATION MICROPHONIC SYSTEMS (SHAKER) OR INERTIA SENSORS

Position of Alarming device

Alarm Alarming System means that, when any part of system break or fire produce or Burglar founded then it will active and give the signal to user.

Types of alarm system 1. Audio alarm 2. Visual Alarm

Alarming System

Audio Alarm In this system we use audio alarm. When any type of incident will happen then detector device detect this and will sent to the control unit. Then control unit drive the alarm and take necessary steps.

Visual Alarm In this system a visual alarm system is also used. When any type of incident will happen then detector device detect this and will send to the control unit. Then control unit drive the Visual alarm and take necessary steps.

Power Back up System Emergency power systems are a type of system, which may include lighting, generators, fuel cells and other apparatus, to provide backup power resources in a crisis or when regular systems fail. They find uses in a wide variety of settings from residential homes to hospitals, scientific laboratories, data centers, telecommunication equipment and modern naval ships. Emergency power systems can rely on generators, deep cycle batteries, flywheel energy storage

Types Short run Backup - Run by IPS,UPS, Battery. Long run Backup - After end of short run System will run by Generator, flywheels for high power users.

An uninterruptible power supply, also uninterruptible power source, UPS or battery/flywheel backup, is an electrical apparatus that provides emergency power to a load when the input power source, typically the utility mains, fails. A UPS differs from an auxiliary or emergency power system or standby generator in that it will provide instantaneous or near-instantaneous protection from input power interruptions by means of one or more attached batteries and associated electronic circuitry for low power users

Electrical fault protection System Power system protection is a branch of electrical power engineering that deals with the protection of electrical power systems from faults through the isolation of faulted parts from the rest of the electrical network. The objective of a protection scheme is to keep the power system stable by isolating only the components that are under fault, whilst leaving as much of the network as possible still in operation.

COMPONENTS Circuit breakers Protective relays to sense the fault and initiate a trip, or disconnection, order; Current and voltage transformers Auto reclose commands; Batteries

Circuit breaker A circuit breaker is an automatically- operated electrical switch designed to protect an electrical circuit from damage caused by overload or short circuit. Its basic function is to detect a fault condition and, by interrupting continuity, to immediately discontinue electrical flow.

Fuse A fuse, which operates once and then has to be replaced, a circuit breaker can be reset (either manually or automatically) to resume normal operation.

Power Control panel In this system all power equipments are places in panel. It is designed such that, any kind of problem of power is solved by itself automatically and save the equipment.

Md. Emdadul Haque (0-5) Md. Sahed Hasan (Slide 9-13) Md. Samsul Arefin (Slide 23-25) Khokan Das (slide 6-8) Amit Halder (slide18 -22) Md. Belayet Hossain (slide 14-17) Ayub Bin Alam(slide 26-30)