Oct 2011

alert systems

office alarm systemsThe hospital policy outlines that every package, large parcel or bag that is carried by any corporate employee must be searched randomly before the employee leaves the facility. However, Chenkin, a chemist at the hospital had denied the guards from searching his luggage two times. Consequently, the chemist’ wages were withheld for a week as a way of the hospital taking disciplinary action against him. Therefore, in the case, Chenkin…… Private Security and the Law: International Use of Private Security in Support of U. S. Interests AbroadIntroductionTo support U.

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Oct 2011

security system alarm

peephole cameraIf the home owner activates the alarm system and the control center registers activity in the home, a signal is sent by the control to a buzzer, flashing lights or any other audiovisual alarm element. Our design for a functional keypad was the usage of an alternation of ports between inputs and outputs which is done by using the TRIS function. We started off by setting the first four ports of PORTB as the inputs and the latter four ports as the outputs. The first four ports are connected to the columns meanwhile the last four are connected to the rows. Moreover, as a justification for this reasoning is the fact that it is required to scan the columns for the pressed key and then scan the rows and the results will be decoded in a decoder telling us which button of the keypad was pressed. The main functionality of the keypad as mentioned earlier is to set the code.

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