Dual Tech motion detectors use two different technologies in the same unit: passive infrared and microwave. These devices are designed to avoid false alarms since both technologies must detect motion before
setting off the alarm. Photoelectric Sensors: These sensors project a beam of light across a hall or doorway to detect motion and are triggered when a person passing through interrupts the beam. Glass Break Detectors: Usually mounted near windows to detect the specific high frequency sound of glass being shattered. They are usually installed on a wall opposite or adjacent to the protected glass and are effective within about 15′ to 25′. Smoke and Heat
Detectors: Detect smoke and heat. Chapter II:Our Home Alarm SystemOur Home Alarm System:Our project’s main concern was to build a Home Alarm System using a PIC microcontroller. We started off our project by coding the Keypad, then LCD and the final touch was the sensor. We also added two types of buzzers: one to sound the alarm and the other as a key tone buzzer. The final result turned out to be the following:Figure3. Our Home Alarm SystemMaterials Used: Cost:PIC16F877A 7$4X4 Keypad 2$JHD 162A LCD 6$6V Alarm Buzzer 0.
Indeed, the transition of users from traditional to online banking methods will be a shift "resulting in considerable savings in operating costs for banks. " Sathye, 325 This highlights the nature of it risks for all companies, which must balance security concerns with the financial optimization often associated with such change. Online banking,…… Private Cloud Computing isks and Challenges Bahrain Gov. Cloud Computing Experiences of Other CountriesFocus on JapanJapan has in the past had the rather lousy record of being an unwilling or late adopted of non Japanese technology. Indeed, as a matter of fact, most of the country's businesses were rather reluctant to embrace West developed technological innovations including but not limited to Twitter and Facebook. It hence comes as a complete surprise that the country received an excellent BSA Global Cloud Computing Scorecard ranking.
home securty system
Most alarm companies use the same installer code for all of their installations, and the vast majority will never give their installer code to a customer, for obvious reasons.