Description:
TITLE: Dust Cleaning System using Line follower logic with Arduino
FIELD OF THE INVENTION
The present invention relates to the field of robotics and automation embedded system more particularly, relates to a system for efficient suction of the dust particles on the surface of the roads or pathways.
BACKGROUND OF THE INVENTION
Vacuum cleaners have been in play since a very long time and so have automatic vacuum cleaners. The implementation of the first of its kind - automated outdoor vacuum cleaner makes this project a novel attempt. The robot is designed in such a manner that it automatically traces a path by sensing the surrounding obstacles. Brushless DC motor is selected as the vacuum motor for its exceptional performance, less wear and tear and noiseless nature.
The whole system is automated by using an advanced electronic prototyping platform called Arduino. Arduino is opted for its simplicity, open source development, small size and ease of interfacing with other peripherals. The model's implementation is done and analysed thoroughly.
The present invention solves the problems faced in the prior art wherein the commutes on the roads face excessive dust due to vehicular source. The present invention is intended to be used in an external and public environment so that the difficulties can be minimized.

OfFlCE CHEN MA. I

1 to. * VJ to ?■ zvi}..r

OBJECTIVE OF THE INVENTION
i. The primary object of the present invention is that it uses efficient motor.
ii. It is yet another object of the present invention to provide less noise or no noise.
iii. It is yet another object of the present invention to provide fully automated and for
outdoor applications. iv. It is yet another object of the present invention to provide the use of BLDC motor. v. It is yet another object of the present invention is that it is a line follower and an
obstacle avoider.
SUMMARY OF THE INVENTION
It will be understood that this disclosure is not limited to the particular systems, and methodologies described, as there can be multiple possible embodiments of the present disclosure which are not expressly illustrated in the present disclosure. It is also to be understood that the terminology used in the description is for the purpose of describing the particular versions or embodiments only, and is not intended to limit the scope of the present disclosure.
The present invention is a system for efficient suction of the dust particles on the surface of the roads or pathways. Automatic traversal of the device is achieved using line following and obstacle avoidance mechanism. The line following and obstacle avoidance mechanism is applied using infrared sensor output which depends on the colour of the line followed by the sensor.
The present invention also comprises of a BLDC motor which is connected to the centrifugal fan to create a low pressure area or partial vacuum beterm the fan and motor shaft. The system further comprises of an arduino which comprises of an electronic prototyping platform to automate the whole system. It is programmed in a way that the input from IR sensor is used for the operation of the wheel motors through the motor driver.
Moreover, the present in vention comprises of a brushless DC motor as the suction motor due to its noiseless properties and less maintenance. Further, a three phase
3
OFFICE CKEN.UA.I i£ *G£/2G17 l.V- 2&

inverter is used to convert the DC supply to three phase ac input supply to the said BLDC motor.
Furthermore, a moter driver is used to change the direction of the rotation of the wheel motors which the output from IR sensors. The present invention aims in achieving cleanliness of the roads and pathways.
BRIEF DESCRIPTION OF DRAWINGS:
For a more complete understanding of the present invention, reference is now made to the following descriptions taken in conjunction with the accompanying drawing, in which: Figure 1 illustrates an exemplary embodiment of flow chart of the Dust Cleaning
System.
Figure 1 illustrates an exemplary embodiment of top view of the Dust Cleaning
System.
Figure 2 illustrates an exemplary embodiment of the front view of the dust cleaning
system.
Figure 3 illustrates an exemplary embodiment of the isometric view of the dust
cleaning system.
DETAILED DESCRIPTION OF THE INVENTION:
The following detailed description illustrates by way of example and not by way of limitations.
Embodiments of the present disclosure will be described more fully hereinafter with reference to the accompanying drawings in which like numerals represent like elements throughout the several figures, and in which example embodiments are shown. Embodiments of the claims may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.
The examples set forth herein are non-limiting examples and are merely examples

0{=f ICE

CHEKHAI

4 1£. ?'QG i 1017

12'- I &

among other possible examples.
In the disclosure herein, consideration or use of a particular element number in a given FIGURE or corresponding descriptive material can encompass the same, an equivalent, or an analogous element number identified in another FIGURE or descriptive material corresponding thereto. Some embodiments of this invention, illustrating all its features, will now be discussed in detail. The words "comprising," "having," "containing," and "including," and other forms thereof, are intended to be equivalent in meaning and be open ended in that an item or items following any one of these words is not meant to be an exhaustive listing of such item or items, or meant to be limited to only the listed item or items.
It must also be noted that as used herein and in the appended claims, the singular forms "a," "an," and "the" include plural references unless the context clearly dictates otherwise. Although any systems and methods similar or equivalent to those described herein can be used in the practice or testing of embodiments of the present invention, the preferred, systems and methods are now described.
Some embodiments may be described using the expression "one embodiment" or "an embodiment" along with their derivatives. These terms mean that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment. The appearances of the phrase "in one embodiment" in various places in the specification are not necessarily all referring to the same embodiment.
Referring to the drawings, Figure 1 illustrates the exemplary embodiment flow chart of the Dust Cleaning System. 100 wherein the automated vacuum cleaner uses a BLDC motor as the suction motor. The battery provides the DC supply for Arduino and the three phase inverter. The IR sensor's output is given to the Arduino. The three phase inverter output is fed to the Brushless DC Motor. The controller (Hall sensor / sensorless control) gets the position of the rotor and accordingly excites the stator by giving the corresponding gate pulse to the inverter.

The BLDC motor is coupled with a centrifugal fan, which when rotated creates a difference in pressure on either side of the fan. This difference in pressure results in suction.
Figure 2 illustrates a top view of the Dust Cleaning System 200 wherein the said device comprises of battery 210, arduino board 215, Infrared sensors 220, Wheel motors 225 and a vacuum motor 230. The present invention is driven by a plurality of wheel motors 235 which are powered by the battery 210 and the Driver IC 240 (L293D). A straight line traversing is achieved by employing the technique of line follower using IR sensors 220. This is a primary implementation which can be improvised by using other efficient sensors like ultrasonic sensor to follow a flat wall. Arduino board 215 is the automation tool used here in such a way that the motor follows a straight line as depicted in the flowchart above. The vacuum operation is achieved using BLDC motor which is contrary to the conventional vacuum motor - the Universal motor in terms of efficiency and noise. When the dust is encountered, the particles get sucked to the centrifugal fan or the suction fan 245 attached because of the suctional force that is created due to the difference in pressure on either sides of the fan.
Figure 3 illustrates the front view of the dust cleaning system 300, wherein, the suction motor and suction fan are attached by means of a suction pipe 310.
Figure 4 illustrates the isometric view of the dust cleaning system 400, wherein the battery 210 supplies energy to the motors (DC Motors and Universal Motor), Sensors and the Arduino. The Arduino and the sensors require 5V input whereas the battery is a 12V battery. Thus, the voltage is stepped down using a Voltage regulator (IC 7805). The universal motor is coupled with a centrifugal fan or the suction fan 245 to create a suction force.
Furthermore the brushless DC motor requires a three phase AC input whereas the supply from the battery is DC. In order to drive the motor, a three phase inverter is

used. A three phase inverter is a power electronic circuit that converts DC into three phase AC. This power electronic circuit requires a gate pulse for functioning. Thus an additional control strategy is brought up in order to control the rotation of the brushless DC motor.
Moreover, infrared sensors 220 are used to detect the line to be followed or an obstacle. IR sensors get an input supply of 5V and give a digital output, i.e. HIGH (5V) or LOW (0V). They work on the basic principle of reflection. An infrared radiation emitter emits IR rays and a detector is used to receive the reflected rays. The IR rays will be absorbed by a black line and will not be reflected. This will result in a change of output from the sensor, which is fed to the Arduino 215. The driver used in this system is L293D which can drive the two locomotive motors/ wheel motors. They take 5V input from the battery and deliver the battery's output to the locomotive motors based on the sensor's output as per the programmed logic.
In the proposed system, IR sensors could be replaced by any other efficient sensor like Ultrasonic sensor as the IR sensor has a disadvantage in maintaining the range of the operation.
Further advancements can be made in the use of Arduino board 215. The proposed application of the BLDC itself is a future scope. It is further noted that the energy source for this system can be used from a more environment friendly basis by applying solar energy. This way, the battery can be reused and thus electronic waste is minimized. Automated vacuum cleaners do exist at present, but noiseless and efficient automated vacuum cleaners are yet to discover their inception.
It is emphasized that the Abstract of the Disclosure is provided to allow a reader to quickly ascertain the nature of the technical disclosure. It is submitted with the understanding that it will not be used to interpret or limit the scope or meaning of the claims. In addition, in the foregoing Detailed Description, it can be seen that various features are grouped together in a single embodiment for the purpose of

streamlining the disclosure. This method of disclosure is not to be interpreted as reflecting an intention that the claimed embodiments require more features than are expressly recited in each claim. Rather, as the following claims reflect, inventive subject matter lies in less than all features of a single disclosed embodiment. Thus the following claims are hereby incorporated into the Detailed Description, with each claim standing on its own as a separate embodiment. In the appended claims, the terms"including" and "in which" are used as the plain-English equivalents of the respective terms "comprising" and "wherein," respectively. Moreover, the terms "first,""second," "third," and so forth, are used merely as labels, and are not intended to impose numerical requirements on their objects.
Without further description, it is believed that one of ordinary skill in the art can, using the preceding description and the illustrative examples, make and utilize the present invention and practice the claimed methods. It should be understood that the foregoing discussion and examples merely present a detailed description of certain preferred embodiments. It will be apparent to those of ordinary skill in the art that various modifications and equivalents can be made without departing from the spirit and scope of the invention

..--, (— I— T f- T-
u r r i, u. t:

CHE.MM AI

■1 /* • OCT ."»/">* —I