Drowsy driver detection

Drowsy driver detection is one of the potential applications of intelligent vehicle systems. Previous approaches to drowsiness detection primarily make pre-assumptions about the relevant behavior, focusing on blink rate, eye closure, and yawning. Here we employ machine learning to datamine actual human behavior during drowsiness episodes.


Automatic classifiers for facial actions from the facial action coding system were developed using machine learning on a separate database of spontaneous expressions. These facial actions include blinking and yawn motions, as well as a number of other facial movements



12V Battery Level Monitor

LM3914 IC is the IC used in this circuit. This IC is also called as dot display driver or bar display driver. It has the ability to sense the magnitude of input analogue signals and able to drives up to 10 LEDs at a time. There are two modes of displays we can choose; dot or bar, depends upon the purpose. Pin 9 is connected with power supply and it tends to get a graph output else IC gives dot display.

lm3914 circuit

We can use LM3914 IC to monitor 12V battery level. The power supply needed for this circuit will get from the input battery itself. LED D1 to D10 will show the level of battery. By using very simple components, we can easily monitor the battery level with this IC.

1.IC LM39141
3.Resistor 56KΩ
Resistor 18KΩ
Resistor 4.7KΩ
4.Variable Resistor 10 KΩ1