Gyrex- Alternative Augmented Communication Device Design Brief

Anudeep Enosh Prasad Dasari, Ranganadh Kollapureddi, Manasa Kondameedi, Elluri Hemanth

B.V. Raju Institute of Technology, Bachelor of Technology

Problem Statement:

In this fast-paced world men and kids are left out because of differently abled such as people suffering with cerebral palsy, meningitis and much more due to which they lose the ability to operate the mobile or PC which disconnects them from the internet world and also lack in communication.

Existing solutions:

The image depicts the existing devices in the market, which have their own unique technologies.
The first device in the image works based on head tracking technology, from NaturalPoint, Inc. and it costs 500 USD (35,693 INR)
The second device in the image works based on Eye tracking Technology, from Tobii company. and costs 202 USD (15000 INR)

Head tracking and eye tracking technologies: These products cost a lot and can't be afforded by a common man. They also cause a lot of stress when used continuously used for long hours and requires special raining and concentration to operate.

Our device GYREX is a simple cost effective device which can be worn to any movable body and doesn't require any special training, it's operation is equivalent to that of a normal mouse.

Design and final approach:

In the image, we see the architecture of our model. It starts with wireless transmitter module powered with 3.5V battery, a gyroscope and a Bluetooth for communication. This module connects to receiver module consisting of another Bluetooth. The receiver is then connected to end user device which is a mobile or a computer or a tablet via USB port.

GYREX is an alternative augmented communication device which works through Bluetooth communication. Our device mainly consists of two parts. They are the transmitter and the receiver. Transmitter is worn by the User and receiver is connected to the mobile or PC which has to be operated. MPU present in the transmitter is the heart of the device. It senses the movements and sends these signals to the receiver through the Bluetooth. Receiver Bluetooth then receives them and converts these signals into appropriate curser movements which is used to operate the mobile or the PC.

Third part of the device is an application. It consists of three modules. First is an SMS service through which caretaker can be informed of the emergency or the difficulty being faced by the user much more effectively and efficiently. Second is the pain analysis which is specially developed for the post-operative care where the patient can pin point and locate his pain and extent of the pain. Third is the education, which consists of alphabets, number and few other things in order to assist the differently abled children to learn.

Results:

Gyroscope readings (Vx, Vy) of the wearable mouse Transmitter device were taken and the following graphs were plotted. In the graph below Blue line indicates the Vx and Red line indicates the Vy.

Figure 1 is the plot between cursor distance with respect to user movements vs user velocities (moving in the left direction) leading to cursor movements. We are observing 2 trends one for cursor movement in x direction indicating by blue color and other for the y direction indicated by red color. As the velocity increases, we see that there isn't a significant variation in the values of Vy but, Vx varies into negative y-axis away from Vy. — Figure 1: Mouse moving in the left direction.

In Fig.1 the values were recorded when the mouse was moved in the left direction. When the mouse moves in left direction Vx values extracted are negative, because gyroscope enters the negative X-axis.

Figure 2 is the plot between cursor distance with respect to the user movements vs user velocities (moving in the right direction) leading to cursor movements. We are observing 2 trends one for cursor movement in x direction indicating by blue color and other for the y direction indicated by red color. As the velocity increases, we see that there isn't a significant variation in the values of Vy but, Vx varies into positive y-axis away from Vy. — Figure 2: Mouse moving in the right direction

In Fig.2 the values were recorded when the mouse was moved in the right direction. When the mouse moves in right direction Vx values extracted are positive, because gyroscope enters the positive X-axis.

Figure 3 is the plot between cursor distance with respective to user movements vs user velocities (moving in the upward direction) leading to cursor movements. We are observing 2 trends one for cursor movement in x direction indicating by blue color and other for the y direction indicated by red color. As velocity increases, we see that there isn't a significant variation of Vx, But Vy varies into negative y-axis away from Vx. — Figure 3: Mouse moving in an upward direction.

In Fig.3 the values were recorded when the mouse was moved in an upward direction. When the mouse moves in upward direction Vy values extracted are positive, because gyroscope enters the positive Y-axis.

Figure 4 is the plot between cursor distance with respective to user movements vs user velocities (moving in the downward direction) leading to cursor movements. We are observing 2 trends one for cursor movement in x direction indicating by blue color and other for the y direction indicated by red color. As velocity increases, we see that there isn't a significant variation of Vx but Vy varies into negative y-axis away from Vx. — Figure 4: Mouse moving in a downward direction

In Fig.4 the values were recorded when the mouse was moved in the downward direction. When the mouse moves in downward direction Vy values extracted are negative, because gyroscope enters the negative Y-axis.

Based on the Vx and Vy values of the Gyroscope the onscreen mouse cursor operates and the desired position of the cursor is achieved by varying Vx and Vy, which is by tilting the Gyroscope.

Cost:

During the initial stage of development prototyping could cost around 4000INR .

Significance:

In ICU's and rehabilitation centres communication gets very difficult due to oxygen masks, ventilators, any other equipment's connected to the patient or in other cases such as suffering with cerebral palsy or any other disability due to which person can't communicate effectively our device comes in handy. Our device can be used in post-operative care, autism, special schools in order to educate the differently abled and help them live normal lives.

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