1. P13036 Notification Alert System Objective: Functional Overview:
2012-2/2012-3
Objective:
In the deaf and hard of hearing community a need exists for a small, inexpensive notification and alert device. This device notifies the user of alerts via high intensity flashing lights and through the use of a shaker. The device is controlled by the user wirelessly via Bluetooth through a handheld device such as a cell phone.
Functional Overview:
Android ® Device
Customer Needs:
Small and lightweight for travel
Flashing high intensity LEDs
Bed shaker adapter
Rechargeable batteries
LCD display to view time and notifications
Low battery indication LED
Bluetooth to communicate to Android® devices
Receives notifications of text messages and s.
Mobile Application to set/cancel alarms and control High Intensity LED and shaker.
User friendly
Physical alarm turn off on physical device
On/Off switch for travel
Durable housing design
BlueGiga ® WT12
UART
GPIO
Bed Shaker
Raspberry Pi ®
GPIO
LCD Display
GPIO
Alert LED’s
Electrical Overview:
PCB Layout:
On/Off
5 V
3.3 V
TX/RX
Alarm Off
LCD Screen
Raspberry Pi
Screen Out V V
12V DC
Power Supply
Charge Controller
Li-Ion Battery
Indication Circuit
Warning LED
5V Regulator
Bluetooth WT12
High Intensity LEDs Switch
High Intensity LEDs
Shaker Switch
Shaker
12 V
Mobile Application Interface:
Software Overview:
Thermal Analysis:
+alarmSys: AlarmSystem.py
+lcd : DisplayHandler.py
+btDriver: BluetoothDriver.py
NAS.py
+main()
-_restart_() : int
-alarmSys: AlarmSystem.py
-display : DisplayHandler.py
-Serial : Object
BluetoothDriver.py
-run()
+__init__()
-alarms[]: String
+buttonGPIO : int
AlarmSystem.py
+addAlarm(in alarmTime : string)
-remoteAlarm(in alarmTime : string)
+ClearAlarms()
+begin(in cols : int, in rows : int)
+home()
+clear()
+setCursor(in col : int, in row : int)
+autoscroll()
-write4bits(in bits : byte, in char_mode : bool = False)
+pulseEnable()
+message(in text : string)
LCDDriver.py
-isAlarm : bool = False
-isNotification : bool = False
-isControl : bool = False
+rows : int
+col : int
- secondLine : String
DisplayHandler.py
+alarmRecv(in message : string, in speed : int = .5)
+notificationRecv(in message : string, in speed : int = .5)
+deactivateAlarm()
+controlRecv(in time : string)
+setPulseSpeed(in pulseSpeed : int)
+setSecondLine(in message : string)
pySerial.py
+readLine() : String
+Serial() : Object
Case Design:
Results:
Fully functional alarm clock with bed shaker and high intensity LEDs.
Able to communicate with Android ® mobile devices via Bluetooth to receive s and text messages which can be displayed on the device’s LCD screen.
User friendly mobile application that controls enabling/disabling alarms, high intensity LED flashing patterns, and bed shaker shaking intensities.
Thomas Adcock (ME)
Stephen Moskal (CE)
Patrick Ganson (CE)
William Johnson (ME)
Umer Usman (EE)
Elizabeth Phillips (EE)
Special Thanks to: Dr. Gary Behm (Customer), George Slack (Guide), Dr. Elizabeth DeBartolo (Sponsor)