FORM 2
THE PATENT ACT 1970
(39 OF 1970)
AND
The patent rules, 2003
COMPLETE SPECIFICATION
(See section 10: rule 13)
1. TITLE OF INVENTION
Smart Shoes for Assisting Visually Impaired People
2 APPLICANTS
Sr. Name Nationality Address
No
1 Kailas Ravsaheb Indian Vishwakarma Institute of
Patil
Information Technology (VIIT),
Department of Computer Engg, A-305, Sr no: 2/3/4, Kondhwa Budruk, Pune, Maharashtra-411048
2 Mr. Qaidjohar Indian Vishwakarma Institute of
Zoeb Jawadwala
Information Technology (VIIT),
Department of Computer Engg, A-305, Sr no: 2/3/4, Kondhwa Budruk, Pune, Maharashtra-411048

3. PREAMBLE TO THE DESCRIPTION
COMPLETE
Following specification particularly describes the invention and the manner in
which it is to be performed.
4. DESCRIPTION.
Technical field of invention:
Present invention in general relates to design and implement smart shoes for visually impaired people to assist them in navigation by detecting obstacle in the path and contains a warning system.
Prior art:
Blindness is a disability that affects millions of people throughout the world. According to the World Health Organization, there are 285 million people who are visually impaired worldwide. Performing normal navigational tasks in the modern world can be a burdensome task for them. The majority of assistive technologies that allow blind users to “feel” and “see” their environment require their active engagement/focus (both mentally and physically), or require the user to learn and adapt to the technology's “language”. If an assistive technology requires significant time and cognitive load to learn, it will be less acceptable to users. Many prior assistive technologies that have done well are those that are cost-effective and those for which the “language” of the device is intuitive. Some of the assistive devices and system are described below.
US 5917174 A discloses device for assisting the visually impaired in product recognition. A device and related method are provided for assisting visually

impaired persons obtain verbal information from consumer product bar codes. The device includes a scanner unit, a processing unit, a power unit and a voice synthesizer. The method involves the person scanning the bar code of the product with the scanner unit to provide a first signal which is communicated to the processing unit for locating, retrieving and outputting product information corresponding to the bar code in a form for the voice synthesizer to generate a verbal output to convey the information to the person. The bar code may be raised to assist the visually impaired person in locating the exact location of the bar code to facilitate scanning thereof. The device and the method provide the visually impaired person with a level of information that about the product that is not normally obtained without the assistance of another person.
CN 103169598 B describes a wearable style smart guide blind system and method. The invention discloses a wearable smart guide blind system, including ground and aerial obstacle detection devices obstacle detection device, ground obstacle detecting device includes a microcontroller, voltage follower, inclination sensors, pressure gage, foot ultrasonic sensors, bracket, bracket and fixed with a foot; supporting frame for fixing the microcontroller, the holder for the support frame is fixed to the front end user of the shoe, the foot off the strap to prevent the supporting frame in the upper; aerial obstacle detecting means comprises waist straps waist ultrasonic sensors, accelerometers and vibration; a pressure gage is mounted at the shoe insole, for pressure sensing user walking foot and leg triggers ultrasonic obstacle sensors detect ground object distance; waist ultrasonic sensor for detecting the air distance between the obstacle and the user, and to remind the user through the shaker. The invention is easy to dress high real-time, low reliability and price and so on.
WO 2013067539 A1 describes an adaptive visual assistive device. The disclosure features visual assistive devices that include a detection apparatus configured to receive information about an environment surrounding a user of the visual assistive device, a communication apparatus configured to transmit information to the user,

and an electronic processor coupled to the detection apparatus and the communication apparatus, and configured to: receive information about an activity of the user; filter the information about the environment surrounding the user based on the activity of the user; assign a priority rank to each element of the filtered information based on the activity of the user; and transmit at least some of the elements of the filtered information, according to the assigned priority ranks, to the user using the communication apparatus.
CN 200997199 Y discloses a full automatic intelligent reader for the blind. The internal modules are connected as the following: a reading control unit is respectively connected with a scan input unit, an image processing unit, a character recognition unit, an intelligent decision unit, a voice synthesis unit, and a pronouncing unit; a memory unit is respectively connected with the scan input unit, the image processing unit, the intelligent decision unit, and the voice synthesis unit. The utility model can assist the blind to read paper text data, such as books, periodicals, newspapers and documents automatically, even if the blind cannot distinguish the direction and angle of the paper document. A convenient reading control function is also provided to enable more convenient and efficient reading for the blind.
US 20140184384 A1 describes a wearable navigation assistance for the vision-impaired. An assistive device includes a sensor that detects information using a first modality; an actuator that conveys information using a second, different modality; and a controller that automatically receives information from the sensor and operates the actuator to provide a corresponding actuation. A sensory assisting system for a user includes assistive devices and a support the user wears to hold the devices in proximity to body parts. The fields of view of the devices' sensors extend at least partly outward from the body parts. The controller reads the sensors and operates the corresponding actuators. A method of configuring a sensory assisting system includes successively activating actuators and receiving corresponding user feedback; determining perceptibility relationships for devices per the feedback; and repeatedly: activating the actuators per a virtual environment,

a user avatar position, and the relationships; receiving a user navigation command; and moving the user avatar.
WO 2013090273 A1 describes an illuminated mobility enhancing device. The invention provides a mobility enhancing device having means for electronically illuminating a travel path, which means comprises a housing, the housing containing an illumination source of an intensity range suitable for illumination of a travel path and of an optimal wavelength spectrum, the illumination being directed at such an angle downward and not forward, so as not to impair the vision of non-users of the device and to minimize glare from the illumination source that can interfere with the vision of the user. In a preferred embodiment, a mobility enhancing device such as a walking cane is provided including means to electronically illuminate a travel path to detect obstacles. In a further preferred embodiment, a long cane such as that typically used by the blind and visually impaired is improved in accordance with the invention.
US 6011481 A discloses a walking cane with sensors for blind people. The invention is an improvement over existing walking canes to be used by people with physical impairments that require them to have additional support while walking. The present invention provides a means by which an imbalance in the weight distribution among the multiple legs of the cane is sensed and transmitted to the user. The walking cane with sensors comprises a handle, a vertical shaft and multiple legs or feet. Each of the legs is equipped with electronic stress or load sensors which are coupled to an electronic processing module. The processing module evaluates the input from the cane legs and activates a warning to the user in the event that the load sensors on the legs detect a load distribution indicative of an approaching unstable situation. The user can then stop and probe with the cane until a stable position is found.
Consequently, there is a need for a device and related method for assisting visually impaired persons for detecting the obstacles in the path and aid in navigation.

Hence the present invention designs and implements smart shoes for visually impaired people. This system detects the obstacles and warns the user while travelling.
Object:
1. Primary object of the present invention is to provide design and implementation of smart shoes for visually impaired people.
2. Another object of the present invention is to provide obstacle detection and warning system for the visually impaired.
3. Yet another object of the present invention is to facilitate indoor and outdoor travel on foot by detecting obstacles in the path.
4. Yet another object of the present invention is to provide metal and wet-floor detection for the visually impaired.
5. Yet another object of the present invention is to provide a simple and inexpensively produced smart shoes system for general use.
6. Yet another object of the present invention is to provide warning system connected to the shoe element which configure the input from the system and provide feedback to the users.
7. Yet another object of the present invention is to provide feedback to the user in the form of varying vibration to the user.
8. Yet another object of the present invention is to use ultrasonic sensors in the system for detecting any obstacles present in the path.

Other objects, features and advantages will become apparent from detail description and appended claims to those skilled in art.
STATEMENT:
Accordingly following invention provides a design and implementation of smart shoes for vision impaired people. Also provided obstacle detection and warning system for the visually impaired people which when used will facilitate indoor and outdoor travel on foot by detecting obstacles in the path. The system comprise of six ultrasonic sensors, a wet floor detector, a step down button, microcontroller circuits, four vibration motors and a battery for power supply. An ultrasonic sensor is used to send out high frequency sound waves and record the time it takes for the reflected sound to return. The total of six ultrasonic sensors is divided in two groups i.e. Group_1 and Group_2. The Group_1 sensors (S1, S2, S3) detects floor level obstacles while Group_2 sensors (S4, S5, S6) detects knee level obstacles. Sensors S1 and S4 are front facing, S2 and S5 are left facing and S3 and S6 are facing towards right side. All six ultrasonic sensors are wide beam ping sensors. Total four vibration motors are used in the system. One vibration motor (V1) attached to left-side of a shoe, second vibration motor (V2) attached to right-side of a shoe, third vibration motor (V3) is attached to the front side of a shoe and fourth vibration motor (V4) is attached to the back side of the shoe as shown in the Figure 1 on sheet 1. A microcontroller circuits, a wet floor detection sensor, step down button and a power supply are connected to the shoe as shown in Figure 1 on sheet 1. The main purpose of the StepDown button is to detect the down-state of the foot.
BRIEF DESCRIPTION OF DRAWING:
This invention is described by way of example with reference to the following
drawing where,
Figure 1 of sheet 1 shows the assembled shoe with the placement of system components. Where,
1 denotes Ultrasonic Sensor Facing Front for ground level obstacle detection
2 denotes Ultrasonic Sensor Facing Left for ground level obstacle detection

3 denotes Ultrasonic Sensor Facing Right for ground level obstacle detection
4 denotes Ultrasonic Sensor Facing Front for knee level obstacle detection
5 denotes Ultrasonic Sensor Facing Left for knee level obstacle detection
6 denotes Micro-controller
7 denotes Front vibration motor
8 denotes Left vibration motor
9 denotes Right vibration motor
10 denotes Back vibration motor
11 denotes Battery
12 denotes SD card module
13 denotes Liquid detector sensor
14 denotes Step down sensor
Figure 2 of sheet 2 shows the flow chart of the process of the proposed system. Where,
1. denotes Start System
2. denotes Assemble
3. denotes Stepdown function
4. denotes Stepdown true
5. denotes Stepdown false
6. denotes Wetfloor function
7. denotes Wetfloor true
8. denotes Wetfloor false
9. denotes Back vibration motor vibrating at 2000rpm
10. denotes Front ground level obstacle function
11. denotes Front ground level obstacle true
12. denotes Front ground level obstacle false
13. denotes Front vibration motor vibrating at 1000 rpm
14. denotes Left ground level obstacle function
15. denotes Left ground level obstacle true
16. denotes Left ground level obstacle false
17. denotes Left vibration motor vibrating at 1000 rpm
18. denotes Right ground level obstacle function
19. denotes Right ground level obstacle true
20. denotes Right ground level obstacle false
21. denotes Right vibration motor vibrating at 1000 rpm
22. denotes Front knee level obstacle function
23. denotes Front knee level obstacle true

24. denotes Front knee level obstacle false
25. denotes Front knee motor vibrating at 2000 rpm
26. denotes Left knee level obstacle function
27. denotes Left knee level obstacle true
28. denotes Left knee level obstacle false
29. denotes Left vibration motor vibrating at 2000 rpm
30. denotes Right knee level obstacle function
31. denotes Right knee level obstacle true
32. denotes Right knee level obstacle false
33. denotes Right vibration motor vibrating at 2000 rpm
34. denotes Exit
In order that the manner in which the above-cited and other advantages and objects of the invention are obtained, a more particular description of the invention briefly described above will be referred, which are illustrated in the appended drawing. Understanding that these drawing depict only typical embodiment of the invention and therefore not to be considered limiting on its scope, the invention will be described with additional specificity and details through the use of the accompanying drawing.
Detailed description:
In the present invention an obstacle and warning system for the visually impaired is provided, which when used will facilitate indoor and outdoor travel on foot by detecting obstacles in the path and aid safe navigation.
Another major aim of the invention is to provide a smart shoe system of general use which can be simply and inexpensively produced and aid in navigation by detecting obstacles in the path.
A system for obstacle detection comprises a shoe element; an obstacle sensing system attached to the shoe element; and a warning system connected to the shoe

element and configured to take inputs from the obstacle detection system and provide feedback to a user.
The warning system includes a vibrator motor configured to receive input from an obstacle sensing system and to provide feedback to the user in the form of varying vibration to the user. The obstacle sensing system includes an ultra-sonar transceiver.
What to do?
1. Wear shoes with attached device.
2. Turn on the button.
3. Charge battery when needed.
Don’t do?
1. Don’t use device in rainy season
2. Don’t tamper or try to remove components from the system.
Working of the proposed system:-
• When the system is switched on and if step down button is activated, all the six ultrasonic sensors start sensing for obstacles in their respective range and wet floor sensor senses for moisture on the floor.
• If wet floor sensor senses floor to be wet, it sends signal to the microcontroller, which in turn activates back vibration motor at 2000rpm.
• If front ground level ultrasonic sensor detects obstacle, it sends signal to the microcontroller, which in turn activates front vibration motor at 1000rpm.
• If left ground level ultrasonic sensor detects obstacle, it sends signal to the microcontroller, which in turn activates left vibration motor at 1000rpm.
• If right ground level ultrasonic sensor detects obstacle, it sends signal to the microcontroller, which in turn activates right vibration motor at 1000rpm.

• If front knee level ultrasonic sensor detects obstacle, it sends signal to the microcontroller, which in turn activates front vibration motor at 2000rpm.
• If left knee level ultrasonic sensor detects obstacle, it sends signal to the microcontroller, which in turn activates left vibration motor at 2000rpm.
• If right knee level ultrasonic sensor detects obstacle, it sends signal to the microcontroller, which in turn activates right vibration motor at 2000rpm.
• Which vibration motor is vibrating on that basis you have to take decision to where you have to change your place?
Hardware Used:-
1. Ultrasonic Ranging Module HC - SR04
2. 5V Vibration Motor
3. 5 V Chargeable Battery
4. ATmega2560 Microcontroller
5. Gum Boots
6. SD card Module
Additional advantages and modification will readily occur to those skilled in art. Therefore, the invention in its broader aspect is not limited to specific details and representative embodiments shown and described herein. Accordingly various modifications may be made without departing from the spirit or scope of the general invention concept as defined by the appended claims and their equivalents.

CLAIMS
We claim:-
1. A system for obstacle detection especially for visually impaired, comprises
a shoe element; an obstacle sensing system attached to the shoe element;
and a warning system connected to the shoe element and configured to
take inputs from the obstacle detection system and provide feedback to a user wherein the preferred embodiment mainly comprises of shoes, sensing system, warning system, vibrator motor, ultrasonic sensors, chargeable battery, ATmega2560 Microcontroller.
2. The warning system of the device as claimed in claim 1 includes a vibrator motor configured to receive input from an obstacle sensing system which includes an ultra- sonar transceiver and provide feedback to the user in the form of varying vibration to the user.
3. The obstacle detection system as claimed in claim 1 comprises six ultrasonic sensors, a microcontroller circuits, a wet floor detection sensor, step down button and a power supply are connected to the shoe.