# Title Team Members TA Documents Sponsor
66 Warning Coverage
Huiyuan Liu
Yingquan Yu
Dongwei Shi appendix
Warning Coverage

Team members:

Yingquan Yu, NetID: yyu47 (
Huiyuan Liu, NetID: hliu88 (

Introduce and Motives:
Leaving temporality in public but you don’t want other people to look or touch your stuff? Alarming Coverage has you covered! Simply cover your stuff, arm your blanket though phones and you are ready to leave. If anyone moves anything, it will alarm the people with sounds and send you a notification though phones.

Design and component:
The Alarming Coverage consists of two part: the control board and the blanket itself.

The main functionality of board is to alarm people around it and notify user when the blanket is moved. The board is attached to the blanket and it contains a micro controller, bluetooth module, a buzzer and a battery to collect and process all the signal from sensors. People could arm the Alarming blanket through buttons on the board or through bluetooth on the phone.

The main functionality of the blanket is to detect the malicious movement from other people. To detect, we may use the combination of but not limited to IR proximity sensor, flexible sensor or photon sensor. We planned to use flexible sensor to detect the shapes changes of the blanket, IR proximity and photon sensor to detect the surrounding object distance and light changes. To make blanket works more stably and reliably, we may add magnets or suction pads to the edge of blanket so that it could mitigate environmental effects such as wind or fans.

The blanket could be controlled remotely by the mobile phone through app and connected by Bluetooth (or potentially through wifi). Using the app, user can view the status (the shape) of the blanket by using data from the sensor.

Original Title: Security Blanket
After talking with TA, we think the current title might be more proper to describe our project. The blanket is mainly used to draw other people's attention when the sensors and controllers on the blanket detects the anomaly move against it or the stuff under it. Also

Control System and User Interface for Hydraulic Bike

Iain Brearton

Featured Project

Parker-Hannifin, a fluid power systems company, hosts an annual competition for the design of a chainless bicycle. A MechSE senior design team of mechanical engineers have created a hydraulic circuit with electromechanical valves, but need a control system, user interface, and electrical power for their system. The user would be able to choose between several operating modes (fluid paths), listed at the end.

My solution to this problem is a custom-designed control system and user interface. Based on sensor feedback and user inputs, the system would change operating modes (fluid paths). Additionally, the system could be improved to suggest the best operating mode by implementing a PI or PID controller. The system would not change modes without user interaction due to safety - previous years' bicycles have gone faster than 20mph.

Previous approaches to this problem have usually not included an electrical engineer. As a result, several teams have historically used commercially-available systems such as Parker's IQAN system (link below) or discrete logic due to a lack of technical knowledge (link below). Apart from these two examples, very little public documentation exists on the electrical control systems used by previous competitors, but I believe that designing a control system and user interface from scratch will be a unique and new approach to controlling the hydraulic system.

I am aiming for a 1-person team as there are 6 MechSE counterparts. I emailed Professor Carney on 10/3/14 and he thought the general concept was acceptable.

Operating modes, simplified:

Direct drive (rider's pedaling power goes directly to hydraulic motor)

Coasting (no power input, motor input and output "shorted")

Charge accumulators (store energy in expanding rubber balloons)

Discharge accumulators (use stored energy to supply power to motor)

Regenerative braking (use motor energy to charge accumulators)

Download Competition Specs:

Team using IQAN system (top right corner):

Team using discrete logic (page 19):