The invention relates to a system of auto adjusting the air conditioning vents in/for vehicles. The present invention particularly relates to a system of auto adjusting the air conditioning vent in/for vehicles using image processing technology thereby providing ease, comfort to travelers during their travel.

BACKGROUND OF THE INVENTION:
India is a developing country with constant development across all the sectors in India. To mention a few: engineering, software, pharmaceuticals, health and the list is uncountable. To focus on, one of the sectors of development is the automobile industry. As the Indian economy grows, the demand for development also grows rapidly. Automobile industry development involves progress and improvement in the existing technologies with introduction of enhanced features. In contemporary times, enhanced features are pre requisites for success of any automobile. Currently there are various options available in market to comply with our needs. To mention some of the variants in this sector, enhancement in the design of the automobile, addition of GPS system, voice control functions and features and so on. However there is a need of some enhanced features with regards to the air conditioning in the vehicle. Presently the AC in the vehicle needs to be adjusted as per requirement of the individuals seated in the vehicle, there are auto airflow control mechanisms available in vehicles which increases and decreases the flow of the air depending on the temperature of the vehicle, but there is no provision for auto adjusting the conditioner where the individual is seated i.e. directing the flow of air towards the individual’s face or torso automatically i.e. without any manual adjustment.
Herein is a combined effort to overcome these limitations by and to widen the applications of automobile industry while keeping in mind several challenges like cost, difficulties faced by the individuals while driving, comfort of the travelers and alike.

OBJECTS OF THE INVENTION:
The present invention is directed towards a system of auto adjusting the air conditioning vent in vehicles.
An object of the present invention is to provide a system of auto adjusting the air conditioning vents for vehicles which allow individuals/travelers to change the air flow direction towards them without manual maneuver.
An object of the present invention is to provide an automated air conditioning vent system for vehicles wherein the airflow is directed towards face, torso or towards requisite body parts.
Another object of the present invention is to provide an ease, comfort for the traveler seated in the vehicle.
Another object of the present invention is to provide system of air conditioning vent for vehicles which has a button to readjust the airflow towards the new position of face of the seated individual/ traveler by detecting the face again.
Further object of the present invention is to provide an automated air conditioning system for vehicles which can detect the human torso and adjust the AC vent towards the torso of the individual/traveler.
Further object of the present invention is to provide an option to travelers to not to direct the airflow directly in the direction of the seated individual. Since AC in the said system points directly to the person in a car, a person needs to keep the AC fan at low speed and will try to keep the temperature high, thereby increase the fuel efficiency of the car.
A further object of the present invention is to introduce multiple air conditioning vents in a vehicle which can be controlled by a single microprocessor with help of multiple cameras.
A further object of the present invention is to provide a system of air conditioning vent in vehicles which is cost effective thereby can be enjoyed by all individuals belonging to any strata of society.

DESCRIPTION OF DRAWINGS:
1) Figure 1 illustrating connection of stepper, DRV8825 driver, and bridge as disclosed in the said invention.
2) Figure 2 illustrating microprocessor, one AC vent and two DC motors as disclosed in the said invention.
3) Figure 3 illustrating a microprocessor controlling two AC vents with the help of four DC motors as disclosed in the said invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS:
The present invention is best understood by the description set forth herein.
Embodiments of the invention are discussed below. However, those skilled in the art will readily appreciate that the detailed description given herein is for explanatory purposes as the invention extends beyond these limited embodiments.
In a preferred embodiment, the system of air conditioning vent in vehicles comprises the following hardware components:
1) A camera: A miniature camera, is fitted at an appropriate place probably in front of a vehicle seat to capture a real time video of the individual sitting in the seat in front of it.
2) A microprocessor: A small processor is used probably a small single board computer is used.
3) Software for computer vision and image processing: A software is installed on the micro processing unit, detects the human face or torso in the real time video. It calculates the coordinates of the face and/or torso in the video frame and convert them to the coordinates/angles which will be fed to the DC motors.
4) DC Motors: A set of small DC motors, are attached to the AC vents, one motor is attached to the horizontal direction control fins and another is attached to the vertical direction control fins to order to enable them rotate these to a certain angle which in turn directs the air flow towards the seated traveler. The motor is connected to one of the outputs of the microprocessor which transfers the data to move the AC vents.
5) AC vent: a regular air conditioning vent with attached motors.
6) Push Buttons: A small push button is used to readjust the flow of the air. One button is used to direct the flow towards the new face position, where there can be another push button to direct the flow of the air towards the torso of the seated traveler. Also, there could be a button to not to direct any airflow towards the seated traveler.
7) Control Dashboard: There is a small control dashboard with two small push buttons which can be used to readjust the flow of the air. One button can be used to direct and keep the air flow towards the face of person in the car position, whereas there can be another push button can be pressed to direct the flow of the air towards the torso of the passenger
The working of the system is mentioned in the following steps with reference to figure 2 and figure 3:
1. As soon as the vehicle starts, the system activates and a miniature camera scans for the human face in real time in the vehicle. A wide angle camera module, Raspberry Pi Compute Module 4, is preferably used in the said disclosure. Based on the image sensor the said camera module can get a resolution of 3280 x 2464 with frame rates up to 180fps at 720P. The camera module is based on the 1/4? 8MP IMX219 sensor, which gives a sharp image. Unlike other camera modules, the said camera module is equipped with 175° wide-angle M12lens, which provides a much wider field of view compared to the stock lens on the V2 camera.
2. The captured data/the camera output is received as an input to a microprocessor where it detects the human face and/or torso and calculates the horizontal and vertical coordinates/angle of the individual from the AC vent, it detects the face based on Voila Jones method. The program first detects the human face in the frame and then calculates the coordinates of the face in the frame.
3. The microprocessor in turn gives command to the horizontal and vertical motors connected to the AC vent as per the horizontal and vertical coordinates/angles calculated, so that the flow of the air is directed towards the individual seated in the vehicle.
4. A manual button dashboard with two options is present i.e. Face and Torso. The Face button, gives command to the microprocessor to adjust the AC vent such that the airflow is on the face of person in the vehicle and it continues on the face.
5. The Torso button, gives command to the microprocessor to adjust the AC vent such that the airflow is on the torso of the person in the car and it continues to remain on torso.
6. The said system also detects the human torso and adjusts the AC vent towards the torso of the seated traveler, but not to send air in the direction of the individual seated.
7. Multiple AC vents in a vehicle are controlled by a single microprocessor with help of multiple cameras sending input to the microprocessor and the microprocessor in turn adjusts the AC vents with the help of DC motors attached to them.
The invention is further described in detailed with the help of non- limiting illustrations:
Illustration 1: Face Detection in vehicles and simultaneous functioning of AC vents

The most clever part of the functioning is to achieve the speed of the motors using Integral Image Processing. Its work in process of when a new image comes in to be classified, the sum of the pixel values is taken across the rows and columns so that pixel (i,j) is the sum of all pixels before it. Having this calculation pre-processed on the image allows the computer to calculate rectangular features with a few addition and subtraction operations instead of looping across the pixel values. Face Detection is the application of image processing techniques to determine if the image is/has a human face or not. It is analogous to object detection, but the distinct and consistent features of the human face make face detection a more informed task achievable by hand-tuned feature descriptors and conventional image processing methods. Face detection is the precursor to face recognition. Face detection in a scene with multiple people or objects introduces challenges in localization of the bounding box for the face. The basic idea behind this is to look for common features of the human face in the image. The common human face features include:

• Two eyes (blackish blobs) some distance apart horizontally
• A nose in between the two eyes, placed vertically below
• A flat rectangular/elliptical surface above the eyes
• A pair of lips below the nose stretching horizontally

The project uses deep learning techniques for face detection, and when the face is detected then the coordinated give command to the controller and configured in the application, it sends a message to operate the motors as per the direction. The complete application is developed in the required programming language. Using off-the-shelf libraries for face recognition and the required library for servo motor control, the complete project is implemented.
The hardware interfaces include the following steps (Ref. Figure 1)
• Connecting the Raspberry Pi Camera Module V2 with the Raspberry Pi board using the 40 pin ribbon cable
• Connecting the Touch Screen display board with the Raspberry Pi board using another 40 pin ribbon cable
• Connecting the servo motor to the Raspberry Pi board using the GPIO pins
o Connecting the servo motor’s PWR and GND pins to the Vcc and GND pins on the RPi
o Connecting the signal pin to pin 17 of the RPi. Since the RPi uses software PWM, different pins can be used to generate the PWM signals for the motor.
• Power up the Raspberry Pi board using an AC-DC power converter providing 5 V power
After the face detection the said research is implement to the stepper Motors. In the said illustration Python and a Raspberry Pi computer are used as the control components.
A stepper motor is wired to a DRV8825 stepper controller, which is subsequently wired to a Raspberry Pi 4 Model B. The motor also requires a 12V power supply with at least 2 amps of current to operate at peak torque.
• Stepper controller, DRV8825 Stepper Driver and Bridge
• Raspberry Pi 4 Model B - (4GB )
• 12V 2A Power Supply.
With Ref. figure 1, The DRV8825 is wired to the stepper controller, which has pinouts for the DIR, STEP, EN, VCC, and GND pins on the DRV8825. Thus, the wiring diagram for the stepper to the Raspberry Pi involves these five pins. The stepper controller must also have the 12V 2A power supply attached to its power terminal. Finally, the stepper motor (NEMA 17HS4023) has to be wired to the stepper bridge.
The above mentioned two axis stepper motor driver has the following features:
• Operating voltage range from 8V to 45VDC
• 7A peak output current (3A RMS) for each motor driver
• Digital voltage supply is selectable (3.3V or 5V) by a 0 ohm resistor and is provided on main board
• 3.3V digital voltage supply may be provided by the STM32 Nucleo board
• USART communication: enables receiving of commands from a PC, enables sending information to a PC
• SPI interface (may be connected in a daisy chain configuration)
• Equipped with Arduino UNO R3 connectors
• Layout compatible with ST morpho connectors
• Five LEDs to indicate powered, voltage is on, busy and fault condition occurs
It creates a problem, if there is a requirement of rotation which has lots of moving parts or if their arises a need of controlling too many LEDs or dc output with PWM outputs, then the limited PWM outputs of the microcontroller. To overcome this problem, the only thing is to get a 16-Channel 12-Bit PWM/Servo Driver. This can be controlled by 16 free-running PWM outputs with 16-Channel 12-Bit PWM/Servo Driver using only 2 pins. Preferred features of the said 16- channel 12 bit PWM/ Servo drive I2C interface PCA 9685 for Rasberry are as follows:

• Adjustable frequency PWM up to about 1.6 KHz
• 12-bit resolution for each output – for servos, that means about 4us resolution at a 60Hz
update rate
• Configurable push-pull or an open-drain output
• The output enable pin to quickly disable all the outputs
• Terminal block for power input
• Reverse polarity protection on the terminal block input
• Green power-good LED
• 3 pin connectors in groups of 4 so you can plug in 16 servos at once
• Chainable design
• A spot to place a big capacitor on the V+ line
• 220-ohm series resistors on all the output lines to protect them, and to make driving
LEDs trivial.
• This board/chip uses I2C 7-bit address between 0x60-0x80, selectable with jumpers.
Preferred essential features of the said microprocessor are as follows:
GPU 128-core
CPU Quad-core ARM A57 @ 1.43 GHz
Memory 2 GB 64-bit LPDDR4 25.6 GB/s
Storage microSD (Card not included)
Video Encode 4Kp30 | 4x 1080p30 | 9x 720p30 (H.264/H.265)
Video Decode 4Kp60 | 2x 4Kp30 | 8x 1080p30 | 18x 720p30 (H.264/H.265)
Connectivity Gigabit Ethernet, 802.11ac wireless
Camera 1x MIPI CSI-2 connector
Display HDMI
USB 1x USB 3.0 Type A,2x USB 2.0 Type A, USB 2.0 Micro-B
Others 40-pin header (GPIO, I2C, I2S, SPI, UART)
12-pin header (Power and related signals, UART)
4-pin Fan header
Mechanical 100 mm x 80 mm x 29 mmres
The said system has applications for any types of vehicles as like but not limiting to domestic vehicles aslike cars, SUVs, commercial vehicles aslike Buses, Airplanes where the AC vents of the vehicle can auto adjust itself to direct the airflow towards the person in the vehicle by detecting its position.
It is understood that many modifications and variations may be devised given the above description of the principles of the invention. The system parameters can vary depending on the type of the vehicle, need of the vehicle, requirement of the end user and so on.
ADVANTAGES OF THE PRESENT INVENTION:
The said system provides the seated traveler an easy way to direct the air coming out of an AC vent towards their face, torso or completely off their body just by the push of a button.
Since AC in the said system points directly to the person in a car, a person needs to keep the AC fan at low speed and will try to keep the temperature high, thereby increase the fuel efficiency of the car.
The said system comprises an intelligent AC vent thereby allowing the travelers to change the air flow direction towards them without manual maneuver.
The said system ensures ease and comfort to individuals/ travelers effortlessly.
The said system is designed considering the need and discomfort caused to travelers, thereby serving the purpose and efforts of adjusting the vents manually.

CLAIMS:

We claim,

1) A system of auto adjusting the air conditioning vents in/for vehicles, wherein the present invention particularly relates to a system of auto adjusting the air conditioning vent in/for any type of vehicles using image processing technology thereby changing the air flow in required direction i.e. towards the face and/ or torso of the passengers without manual maneuver, thereby providing ease and comfort to travelers during their entire travel
2) A system of auto adjusting the air conditioning vents in/for vehicles towards the face and/ or torso of the passengers, as claimed in claim 1, comprising of the following essential parts:
a) A camera: A miniature camera, is fitted at an appropriate place probably in front of a vehicle seat to capture a real time video of the individual sitting in the seat in front of it
b)A microprocessor: A small processor is used probably a small single board computer is used
c) An application for computer vision and image processing: An application is installed on the micro processing unit, which detects the human face or torso in the real time video, it calculates the coordinates of the face and/or torso in the video frame and converts them to the coordinates/angles which in turn feds to the DC motors
d) DC Motors: A set of small DC motors, are attached to the air conditioning vents, one motor is attached to the horizontal direction control fins and another is attached to the vertical direction control fins to order to enable them rotate these to a certain angle which in turn directs the air flow towards the seated traveler. The motor is connected to one of the outputs of the microprocessor which transfers the data to move the AC vents
e) Air conditioning vent: a regular air conditioning vent with attached motors
f) Push Buttons: A small push button is used to readjust the flow of the air. One button is used to direct the flow towards the new face position, where there can be another push button to direct the flow of the air towards the torso of the seated traveler. Also, there could be a button to not to direct any airflow towards the seated traveler.
g) Control Dashboard: There is a small control dashboard with two small push buttons which can be used to readjust the flow of the air. One button can be used to direct and keep the air flow towards the face of person in the car position, whereas there can be another push button can be pressed to direct the flow of the air towards the torso of the passenger
3) A system of auto adjusting the air conditioning vents in/for vehicles as claimed in claim 1, wherein the said system essentially functions as follows:
a) As soon as the vehicle starts, the system activates and a miniature camera scans for the human face in real time in the vehicle. A wide angle camera module, Raspberry Pi Compute Module 4, is preferably used in the said disclosure. Based on the image sensor the said camera module can get a resolution of 3280 x 2464 with frame rates up to 180fps at 720P. The camera module is based on the 1/4? 8MP IMX219 sensor, which gives a sharp image. The said camera module preferably is equipped with 175° wide-angle M12lens, which provides a much wider field of view compared to the stock lens on the V2 camera.
b) The captured data/the camera output is received as an input to a microprocessor where it detects the human face and/or torso and calculates the horizontal and vertical coordinates/angle of the individual from the AC vent, it detects the face based on Voila Jones method. The program first detects the human face in the frame and then calculates the coordinates of the face in the frame.
c) The microprocessor in turn gives command to the horizontal and vertical motors connected to the AC vent as per the horizontal and vertical coordinates/angles calculated, so that the flow of the air is directed towards the individual seated in the vehicle.
d) A manual button dashboard with two options is present i.e. Face and Torso. The Face button, gives command to the microprocessor to adjust the AC vent such that the airflow is on the face of person in the vehicle and it continues on the face.
e) The Torso button, gives command to the microprocessor to adjust the AC vent such that the airflow is on the torso of the person in the car and it continues to remain on torso.
f) The said system also detects the human torso and adjusts the AC vent towards the torso of the seated traveler, but not to send air in the direction of the individual seated.
4) A system of auto adjusting the air conditioning vents in/for vehicles as claimed in claim 1, wherein the said system comprise multiple AC vents in a vehicle which are controlled by a single microprocessor with help of multiple cameras sending input to the microprocessor and the microprocessor in turn adjusts the AC vents with the help of DC motors attached to them
5) A system of auto adjusting the air conditioning vents in/for vehicles as claimed in claim 1, wherein the said system provides a fuel efficient, effortless, comfortable travel
6) A system of auto adjusting the air conditioning vents in/for vehicles as claimed in claim 1, wherein the said system has applications for any types of vehicles as like but not limiting to domestic vehicles aslike cars, SUVs, commercial vehicles aslike Buses, Airplanes where the AC vents of the vehicle can auto adjust itself to direct the airflow towards the person in the vehicle by detecting its position