Project

# Title Team Members TA Documents Sponsor
60 Automated Tea Brewing Thermos
Danny Yi
Joseph Niemerg
Vincent Murphy
Nicholas Ratajczyk appendix
final_paper
presentation
proposal
Our project for this class will be an automatic tea making thermos. This thermos will have two different mechanisms to control tea brewing. One of which controls the steeping temperature of the tea you would like to brew. Using a simple switch or a Bluetooth connected device, we can choose to steep at two different temperatures, since there are only two major temperature points used in brewing the common teas*. In addition to this there will be another control for switching between weak, medium, and strong tea. These features are built referencing a guide for tea*. To achieve these basic features a RTD temperature sensor will be added to the inside of the thermos between the outer wall and inner wall of the thermos to check if the steeping temperature has been reached. There is no need to regulate this temperature either, since most steeping temperatures come with a wide enough range where thermal loss considerations are not needed. In addition, a timer will be pre-set, based on user input, for how long to steep the tea based on the saturation level desired. To automate this process these sensor inputs will be conveyed to a motor that will raise and lower the teabag into the water like an anchor. The motor will attach itself to the teabag string with a clip to account for the variations of tea bags. The microcontroller, PCB, and motor will be mounted onto/into the handle to keep the water and heat away from the electronics. With the centralized location to the side of the thermos we plan on building a waterproof enclosure with the use of rubber gaskets, and epoxy to allow for partial submersion under water for hand washing. This design also takes mobility into consideration and allows you to carry the mug wherever you go. We are going to add a heating unit to the bottom of the thermos which will contain a pair of nickel-chromium wires which will serve as heating coils. Their heating output (voltage across coils) will be determined by the micro controller. Once the selected tea and strength have been selected by either the switches or your Bluetooth connected device the thermos will be turned on and heat up to the desired temperature then shut off its heating coil and begin brewing. Once it has finished brewing the controller will provide an audible ding for the user. In addition, the user will be able to follow three LED lights to see what stage of the brewing process the tea is in. (heating up, steeping, and finished). Lastly the user can view a temperature readout display to see what the current temperature in the thermos is. All of this will run on a Li-ion battery which will also be mounted onto the side of the thermos and be rechargeable.

*http://www.artoftea.com/what-is-tea/recommended-steep-times/

Cloud-controlled quadcopter

Anuraag Vankayala, Amrutha Vasili

Cloud-controlled quadcopter

Featured Project

Idea:

To build a GPS-assisted, cloud-controlled quadcopter, for consumer-friendly aerial photography.

Design/Build:

We will be building a quad from the frame up. The four motors will each have electronic speed controllers,to balance and handle control inputs received from an 8-bit microcontroller(AP),required for its flight. The firmware will be tweaked slightly to allow flight modes that our project specifically requires. A companion computer such as the Erle Brain will be connected to the AP and to the cloud(EC2). We will build a codebase for the flight controller to navigate the quad. This would involve sending messages as per the MAVLink spec for sUAS between the companion computer and the AP to poll sensor data , voltage information , etc. The companion computer will also talk to the cloud via a UDP port to receive requests and process them via our code. Users make requests for media capture via a phone app that talks to the cloud via an internet connection.

Why is it worth doing:

There is currently no consumer-friendly solution that provides or lets anyone capture aerial photographs of them/their family/a nearby event via a simple tap on a phone. In fact, present day off-the-shelf alternatives offer relatively expensive solutions that require owning and carrying bulky equipment such as the quads/remotes. Our idea allows for safe and responsible use of drones as our proposed solution is autonomous, has several safety features, is context aware(terrain information , no fly zones , NOTAMs , etc.) and integrates with the federal airspace seamlessly.

End Product:

Quads that are ready for the connected world and are capable to fly autonomously, from the user standpoint, and can perform maneuvers safely with a very simplistic UI for the common user. Specifically, quads which are deployed on user's demand, without the hassle of ownership.

Similar products and comparison:

Current solutions include RTF (ready to fly) quads such as the DJI Phantom and the Kickstarter project, Lily,that are heavily user-dependent or user-centric.The Phantom requires you to carry a bulky remote with multiple antennas. Moreover,the flight radius could be reduced by interference from nearby conditions.Lily requires the user to carry a tracking device on them. You can not have Lily shoot a subject that is not you. Lily can have a maximum altitude of 15 m above you and that is below the tree line,prone to crashes.

Our solution differs in several ways.Our solution intends to be location and/or event-centric. We propose that the users need not own quads and user can capture a moment with a phone.As long as any of the users are in the service area and the weather conditions are permissible, safety and knowledge of controlling the quad are all abstracted. The only question left to the user is what should be in the picture at a given time.

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