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3) A client wants you to design the logic for a device to improve the safety of a delivery robot. Specifically: The three inputs to the logic are: "prox" -this input is active (which we'll denote as "1") when something is too close in front of o the robot o "load"-this input is active when the robot's load is too heavy. o "zone"- this input is active when the robot is within its designated zone in the building (i.e. the input is inactive if the robot strays from its safe area). The two outputs of the circuit are: "enable" - this output controls whether or not the robot is allowed to move. It should be inactive (denoted by "O") when something is too close to the robot or when its load is too heavy. "beep" - if this output is active, the robot will beep to indicate that something is wrong. This output should be active if something is too close, if the load is too heavy, or if the robot is outside its zone. o o Using the description above, complete the following. You may do them in whichever order you think makes the most sense a) Write two Boolean algebraic expressions- one for each output. For the "enable" output, remember that Boolean expressions are always written for the positive logic, so because that output was described in negative logic, you need to think about it a bit more. Draw two switch-level schematics that implement all of the logic. The logic inputs (prox, etc.) should be used to label the switch control signals, and the switch network should create a path when the output is active. Only use the un-complemented version of the signals (i.e. prox, not prox), but use normally- open or normally-closed switches as needed Complete a truth table for the logic, listing the output values for all combination of input signals. b) c)