DLD
security system for a building has three ways of detecting an intruder.
1. Security camera (SC) which sends a 1 when an intruder is detected.
2. Motion sensor (MS) which sends a 0 when an intruder is detected.
3. Noise level detector (NLD) which sends a 1 when the noise level rises
beyond a certain threshold.
The system should work such that the alarm should sound when
• SC doesn’t detect an intruder but the MS and the NLD do
• Neither SC nor the MS detects but the NLD does
• SC and the MS detect but NLD doesn’t
• SC detects only
• SC and NLD detect but MS doesn’t
Construct a Truth table and draw circuit of the system
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A security system for a building has three ways of detecting an intruder. 1. Security camera...
A security system for a building has three ways of detecting an intruder. 1. Security camera (SC) which sends a 1 when an intruder is detected. 2. Motion sensor (MS) which sends a 0 when an intruder is detected. 3. Noise level detector (NLD) which sends a 1 when the noise level rises beyond a certain threshold. The system should work such that the alarm should sound when • SC doesn’t detect an intruder but the MS and the NLD...
A security system for a building has three ways of detecting an intruder. 1. Security camera...
A security system for a building has three ways of detecting an intruder. 1. Security camera (SC) which sends a 1 when an intruder is detected. 2. Motion sensor (MS) which sends a 0 when an intruder is detected. 3. Noise level detector (NLD) which sends a 1 when the noise level rises beyond a certain threshold. The system should work such that the alarm should sound when • SC doesn’t detect an intruder but the MS and the NLD...
a) A security system for a building has three ways of detecting an intruder. 1. Security...
a) A security system for a building has three ways of detecting an intruder. 1. Security camera (SC) which sends a 1 when an intruder is detected. 2. Motion sensor (MS) which sends a 0 when an intruder is detected. 3. Noise level detector (NLD) which sends a 1 when the noise level rises beyond a certain threshold. The system should work such that the alarm should sound when: • SC doesn’t detect an intruder but the MS and the...
A security system for a building has three ways of detecting an intruder. 1. Security camera...
A security system for a building has three ways of detecting an intruder. 1. Security camera (SC) which sends a 1 when an intruder is detected. 2. Motion sensor (MS) which sends a 0 when an intruder is detected. 3. Noise level detector (NLD) which sends a 1 when the noise level rises beyond a certain threshold. The system should work such that the alarm should sound when • SC doesn’t detect an intruder but the MS and the NLD...
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Four large tanks at a chemical plant contain different liquids being bested. Liquid-level sensors are used to detect whenever the level in thanks A and B rises. Above a predetermined level Temperature sensor in tanks C and D detect when the temperature in these drops below a prescribed temperature limit. Assume that the liquid-level sensor outputs(A and B)are LOW (0) when the level is satisfactory and HIGH(1)when the level is too high. Also, the temperature-sensor outputs (C and D)are LOW(0)when...
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