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52 Air steering wheel to control a robot car
Bohan Hu
Jingyu Li
Tianyang Zheng
Hershel Rege design_document0.pdf
We want to design an "air steering wheel" to control the turning of a robot car. We want the user to wear a special designed glove on one hand, and rotate his/her hand to control the turning of the car. The glove is connected to an encoder fixed at the user's elbow which will barely move when the hand rotates. The encoder will detect the angle of the rotation of the glove and send signals to the microprocessor on the car, The microprocessor will process the signals and control the motors of the car accordingly. The turning angle of the hand is proportional to the turning angle of the car and they are highly synchronized.
The electrical system on the user's arm is detached from the rest of the systems.

A potential modification is to add an additional gesture control mode. When the user's palm is flattened out, the car will drive. If the hand clenches into a fist, the car will stop.

Hardware components:
Wireless Communications (within 10m):
In order to achieve the wireless communication between the system on the arm and the system on the car, we plan to install:
- An Arduino microprocessor on each system
- One HC-05 Bluetooth Module on the system on the arm, as the Master
- Another HC-05 Bluetooth Module on the system on the car, as the Slave

Power supply:
We will use batteries to power both systems.

- A rotary encoder around the elbow to detect the angle of rotation of the hand
- There exists a mechanical system linking the rotation of glove to the input of the encoder.

In order to achieve the design modifications, we plan to use:
- Flex sensors on fingers of the glove

Robot car:
- We plan to build our own robot car.

S.I.P. (Smart Irrigation Project)

Jackson Lenz, James McMahon

S.I.P. (Smart Irrigation Project)

Featured Project

Jackson Lenz

James McMahon

Our project is to be a reliable, robust, and intelligent irrigation controller for use in areas where reliable weather prediction, water supply, and power supply are not found.

Upon completion of the project, our device will be able to determine the moisture level of the soil, the water level in a water tank, and the temperature, humidity, insolation, and barometric pressure of the environment. It will perform some processing on the observed environmental factors to determine if rain can be expected soon, Comparing this knowledge to the dampness of the soil and the amount of water in reserves will either trigger a command to begin irrigation or maintain a command to not irrigate the fields. This device will allow farmers to make much more efficient use of precious water and also avoid dehydrating crops to death.

In developing nations, power is also of concern because it is not as readily available as power here in the United States. For that reason, our device will incorporate several amp-hours of energy storage in the form of rechargeable, maintenance-free, lead acid batteries. These batteries will charge while power is available from the grid and discharge when power is no longer available. This will allow for uninterrupted control of irrigation. When power is available from the grid, our device will be powered by the grid. At other times, the batteries will supply the required power.

The project is titled S.I.P. because it will reduce water wasted and will be very power efficient (by extremely conservative estimates, able to run for 70 hours without input from the grid), thus sipping on both power and water.

We welcome all questions and comments regarding our project in its current form.

Thank you all very much for you time and consideration!