Engineering, 02.05.2021 04:40, em387p3s1zr

You are tasked with designing a lock for a dog door. The door has fouruser settings: (1) The door opensfor any animalthat approaches via a motion sensor; (2) The door opens when dog approaches via a motion sensor and the dog has a proper collar RFID. This will allow only specific dogs in; (3) The door is always locked. This is useful for nighttimeand vacations; (4) The door is always open unless a cat approaches via a camera system. To avoid false positives, the motion sensor must detect an animal approaching and the RFID sensor must be negativeto close. This is an expensive addon for people who paranoid a cat might come in the house. a) Write a simplified statement for the prompt
b) Write a Boolean expression.
c) Draw the circuit diagram
d) If I asked for a truth table, how many rows would it have?

Answers: 1

Show answers

Other questions on the subject: Engineering

Engineering, 03.07.2019 15:10, EmilySerna

Heat is added to a piston-cylinder device filled with 2 kg of air to raise its temperature 400 c from an initial temperature of t1 27 cand pressure of pi 1 mpa. the process is isobaric process. find a)-the final pressure p2 b)-the heat transfer to the air.

Answers: 1

continue

Engineering, 04.07.2019 18:10, abdirahmansoloman

Air is to be cooled in the evaporator section of a refrigerator by passing it over a bank of 0.8-cm-outer-diameter and 0.4-m-long tubes inside which the refrigerant is evaporating at -20°c. air approaches the tube bank in the normal direction at 0°c and 1 atm with a mean velocity of 4 m/s. the tubes are arranged in-line with longitudinal and transverse pitches of sl- st 1.5 cm. there are 30 rows in the flow direction with 15 tubes in each row. determine (a) the refrigeration capacity of this system and (b) pressure drop across the tube bank. evaluate the air properties at an assumed mean temperature of -5°c and 1 atm. is this a good assumption?

Answers: 1

continue

Engineering, 04.07.2019 18:10, jojoangelique13

The flow rate of air through a through a pipe is 0.02 m5/s. a pitot static tube is placed in the flow. the radius of the pitot static tube is 1 mm. assuming the flow to be steady and the air to be at 300k, calculate the difference in total and static pressure if the diameter of the pipe is: (a) d 0.1 m d 0.05 m (c) d 0.01 m

Answers: 2

continue

Engineering, 04.07.2019 18:20, sarah7984

Vibration monitoring this technique uses the noise or vibration created by mechanical equipment and in seme cases by plant systems to detemine their actual condtion. a)- true b)- false

Answers: 2

continue

Do you know the correct answer?

You are tasked with designing a lock for a dog door. The door has fouruser settings: (1) The door op...