Week - 4

Ans1. Simulink model explanation

• Chart: A finite state machine is a representation of an event-driven system . In an event driven system, the system respond to a event by making a transition from one state to another. The transition accure the condition defining the change is true.
• Display: The display block shows the value of the input data. you can specify the frequency of the display.
• Constant: The constant block shows a real or complex constant value singnal.Use the block to provide a constant signal input.
• Lamp: The lamp block display a colour indicating the value of the input signal.we can specify pairs of input values and colour to provide the information during the simulation.
• Rocker switch: The Rockers switch block toggles the value of the connected block parameter between two values during simulation.

Control logic of washing machine:

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Explanation :

1. FIRST STAGE POWER SUPPLY:In the control logic diagram starting state is created with two transition condition, 1st is power supply=1 and 2nd is water supply=1 that means both supply on.
2. SECOND STAGE SOAKING: It is used to dip clothes in detergent water to remove dirt from the clothes.This function is available with wash timer, In 200sec is used for soak.
3. THIRD STAGE WASHING: In this stage only washing is done with time period of 100 sec.
4. FORTH STAGE RINSING: The Dirty soapy water is drained, then the washing machine is refilled and your clothes are rewashed in clean water. this rinsing process will take 20 sec.
5. FIFTH STAGE DRYER: In this process Pushing warm dry air through your wet washing to extract moisture in 50 sec.

Result:

Condition 1:(Power supply & water supply both activated)

Condition 2: (Power supply activated & water supply not activated)

In this process indicator show water supply not present,then terminate the process showes with indicator.

Ans2. Objective: Make gear shift logic with diffrent speed..

State flow diagram of gear shift model using simulink chart :

Explanation: The speed ranges from 0 to 100 and the slider is used to send the input. The 1st gear has speed values from 0 to 15 so the entry condition for the 1st gear is 0<=speed and speed<=15 and the exit condition is when the speed greater than 15.Similarly for 2nd gear, the entry condition is 16<=speed and speed<=25 the exit condition is when speed<16 and speed>25. In the same way for each gear, the entry and the exit condition are specified and the out is mapped to the lamp and the display block.

Result:

This is a Gear shift result after simulation . we simulate all speed given in question.

First gear: speed (0 to 15)

Second gear: speed(16 to 25)

Third gear: speed (26 to 40)

Forth gear: Speed(41 to 60)

Fifth gear: speed (above 61)

Slider block:The Slider block tunes the value of the connected block parameter during the simulation. You can modify the range of the Slider block's scale to fit your data.