Untitled

# Define the fuzzy sets for temperature
def hot(temp):
    if temp >= 25:
        return 1
    elif temp < 20:
        return 0
    else:
        return (temp - 20) / 5

def normal(temp):
    if temp >= 25 or temp <= 15:
        return 0
    elif temp < 20:
        return (temp - 15) / 5
    else:
        return (25 - temp) / 5

def cold(temp):
    if temp <= 15:
        return 1
    elif temp >= 20:
        return 0
    else:
        return (20 - temp) / 5

# Define the fuzzy sets for humidity
def high(humidity):
    if humidity >= 70:
        return 1
    elif humidity < 50:
        return 0
    else:
        return (humidity - 50) / 20

def medium(humidity):
    if humidity >= 70 or humidity <= 30:
        return 0
    elif humidity < 50:
        return (humidity - 30) / 20
    else:
        return (70 - humidity) / 20

def low(humidity):
    if humidity <= 30:
        return 1
    elif humidity >= 50:
        return 0
    else:
        return (50 - humidity) / 20

# Define the fuzzy sets for fan speed
def low_speed(speed):
    if speed >= 500:
        return 0
    elif speed <= 250:
        return 1
    else:
        return (500 - speed) / 250

def medium_speed(speed):
    if speed <= 250 or speed >= 750:
        return 0
    elif speed < 500:
        return (speed - 250) / 250
    else:
        return (750 - speed) / 250

def high_speed(speed):
    if speed <= 500:
        return 0
    elif speed >= 750:
        return 1
    else:
        return (speed - 500) / 250
    
def defuzzify(fan_speed):
    if (fan_speed <= 100):
        return "Low speed"
    elif (fan_speed >100 and fan_speed <=250):
        return "Medium speed"
    else:
        return "High speed"

# Define the fuzzy rules
def fuzzy_logic(temp, humidity):
    temp_hot = hot(temp)
    temp_normal = normal(temp)
    temp_cold = cold(temp)
    print("Temperature set:", temp_hot, temp_normal, temp_cold)

    hum_high = high(humidity)
    hum_medium = medium(humidity)
    hum_low = low(humidity)
    print("Humidity set:", hum_high, hum_medium, hum_low)

    # Apply fuzzy rules
    speed_low = min(temp_cold, hum_low) * 750
    speed_medium = min(temp_normal, hum_medium) * 750
    speed_high = min(temp_hot, hum_high) * 750
    # print(speed_low, speed_medium, speed_high)

    # Calculate the degree of membership for each fuzzy set
    speed_low_membership = low_speed(speed_low)
    speed_medium_membership = medium_speed(speed_medium)
    speed_high_membership = high_speed(speed_high)
    print("Speed set:", speed_low_membership, speed_medium_membership, speed_high_membership)

    # Defuzzify the output
    fan_speed = (speed_low_membership * 250 + speed_medium_membership * 500 + speed_high_membership * 750) / (speed_low_membership + speed_medium_membership + speed_high_membership)

    return fan_speed

# Set the input values for temperature and humidity
temperature = 25
humidity = 40

# Calculate the fan speed using fuzzy logic
fan_speed = fuzzy_logic(temperature, humidity)


# Print the resulting fan speed
print("The fan speed is:", defuzzify(fan_speed))
# print("