seniors alert 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$6V Alarm Buzzer 0. 5$Key tone Buzzer 0. 5$4 MEGA Crystal Oscillator 5$3 Flashing LEDs 0.

The types of difficulties that may arise are minimal, and if anything, they would not decline the productivity of delivery nor decline the public opinion in their regard. What would be the ideal public/private law enforcement model?The ideal differentiating model between private and public law enforcement would depict the makeup of federal and state regarded requirements. Adhering to a code of conduct that is…… GIS and mapping software, once available only to agencies possessing mainframe computers, can now be easily loaded on the laptops carried in patrol vehicles and therefore can be used by even small and budget constrained police departments. The innovations demanded by community and problem oriented policing require that departments incorporate a geographic, spatial, or local focus, and emphasize the importance of integrating crime mapping techniques into departmental management, analysis, and enforcement practices. " 2006 What is needed, according to the work of Kehoe is 'standardization' insofar as the technology used in law enforcement and private security so as to enable more integration and coordination between the two entities. The tools which Kehoe includes in the foregoing list are not an exhaustive list whatsoever.

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etrieved September 26, 2007 from ASIS International.