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Knight Time Baby Monitor

Knight Time Baby Monitor. Keeping our babies safe!. Group Information Team 5. Objectives. Build a reliable baby monitor for infants under one year old to monitor the infant and keep it out of hazardous positions known to be associated with SUID and SIDS.

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Knight Time Baby Monitor

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  1. Knight Time Baby Monitor • Keeping our babies safe!

  2. Group InformationTeam 5

  3. Objectives • Build a reliable baby monitor for infants under one year old to monitor the infant and keep it out of hazardous positions known to be associated with SUID and SIDS. • Monitor breathing, motion, and body heat of the infant and temperature and sound of the environment. • Acquire and analyze images to identify the infant’s position in the crib. • Alert the caretaker and parents of life threatening events. • Enable the parents to monitor the babies environment via their smart phones. • Ability to add remote sensors in the future to monitor the heart rate and babies temperature.

  4. System Specifications

  5. Overall System

  6. Motion sensor

  7. motion sensor Induction Distance 24 Hours Size Buzzer • Move too often • Don’t move sensor • Cell Phone

  8. Motion Sensor Modules

  9. HC-SR501Infrared PIR Motion Sensor Detector Module Infrared sensor Control circuit board 24mm 32mm

  10. Potentiometer Ground Output Input Output voltage: to enter the sensor output range is high, people leave the sensor range of the automatic delay off high, output low • Adjust delay time • Clockwise=longer delay • Anticlockwise=shorter delay • Adjust distance • Clockwise = increase 7m • Anticlockwise= decrease 0m

  11. Basic Features Induction blocking time(default setting:2.5s) Two trigger mode: A: can not repeat the trigger B: repeatable trigger

  12. Connect to the board Microcontroller Microcontroller

  13. Camera

  14. Camera definition No flashing Small 24 hours

  15. Camera modules

  16. Raspberry Pi 5MP 1080P Camera NoIR (No IR Filter) Night Vision Module 8mm 20mm 25mm

  17. 15 pin ribbon cable 16mm 15cm

  18. Connect To The Board Ethernet Video Output HDMI 15 Pin Ribbon Cable CSI(Camera Serial Interface) (the blue backing on the cable should be away from the PCB)

  19. Camera Serial Interface 15 Pin CSI connector

  20. Third party soft ware BerryCam – iOS Pi Sight – Android Pi Sight is an Android application which allows you to control all the aspects of your Raspberry Pi camera. RaspiCam Remote – Android RaspiCam Remote is an app to view the Raspberry Pi camera module on your Android Device. Pi Vision - Raspberry Pi

  21. Microphone

  22. Candidate Microphone Devices for Breathing

  23. MICROPHONE:AOM-4544P-2-R Microphone – This will be put near the bottom of the monitoring unit in order to record the sound of the baby’s breathing. Since the microphone will also detect ambient noise, a band pass filter will be used to correct for this. Specifications: The AOMP4544 has a high SNR and flat, wideband frequency response, resulting in natural sound with high intelligibility • Directivity: Omnidirectional • Frequency Response Min: 20Hz • Supply Voltage Max: 1.5V • Sensitivity (dB): -44dB • Drain Current Max: 500µA • Output Impedance: 2.2kohm

  24. Microphone Schematic: AOM 45444P-2 Rand and TI 0801 Amplifier

  25. Temperature sensor

  26. Temperature Sensors:

  27. Why MLX90614DAA ? • Power saving mode • Customizable PWM output for continuous reading • Medical accuracy of 0.1°C in a limited temperature range • SMBus compatible digital interface for fast temperature readings and building sensor networks • High accuracy of 0.5°C over wide temperature range (0..+50 C for both Ta and To) • Infrared thermometer for non contact temperature measurements. • 17-bit ADC and powerful DSP • Resolution of 0.02°C

  28. Monitoring unit

  29. Microprocessor

  30. Why we chose MSP 430???? Microprocessor • The MSP430 has a built in clock. • Familiarity with the MSP 430 through embedded systems courses • The MSP has an A/D converter , amplifier switch and Trigger switch built in it. • FREE from TI and the support system

  31. INTERFACING MSP WITH DM355 • The MSP series has neither the required throughput nor the RAM to handle and process VGA images A highly integrated programmable platform for digital still cameras, digital photo frames, IP security cameras, four-channel digital video recorders, video doorbell applications, and other low-cost portable digital video applications. High picture quality, the DM355 combines high performance, high quality The DM355 also enables a seamless interface in most additional external devices for a complete digital camera implementation.

  32. Microprocessor Programming

  33. Software Requirements • Use the waterfall development process. • Use C or assembly languages for the microcontroller programming. • Save sensor outputs at regular intervals. • Compare all sensor outputs to the appropriate sensor parameters and identify signals outside the parameters. • Send sensor outputs to the smart phones when requested. • Send alerts to the alarm unit(s) and smart phone(s). • Utilize power saving modes of the microprocessor to extend operation.

  34. Software Specifications

  35. Communications

  36. Communication Technology

  37. Why Wi-Fi? • Communicate, and streaming video to the Android App • Readily available in most locations • Greater Range Than Bluetooth

  38. Wi-Fi Modules

  39. Wi-Fi Module: XbeeRN-XV • Transmission Range: 400 ft • Transmit Power: 1.25 to 2 mW • Voltage: 2.1 - 3.6 VDC • Greater Data Rate than Bluetooth @11/54Mbps 802.11 b/g Protocol

  40. Communication Radio Frequency

  41. Transmitter/Receiver • Transmitter- receives audio/video signal and converts it to modulated radio frequency signal and transmits to receiver over a variety of distances. • Receiver-picks up modulated radio frequency, converts it to original audio/video signal

  42. Module (XBEE PRO) Specifications: 2.4 GHz ISM Band 250 kbps Max Data Rate 6o mW output Power UART serial communication Weight: 39g

  43. Alarm unit

  44. Alarm Unit

  45. Alarm Unit LED • Visual Alarm The vibrator motor is perfect for non- audible indicators Audible Alarm Vibration Motor

  46. Power Supply

  47. Power Supply • AC/DC wall adapter • Input: Voltage 120 VAC Frequency 60 Hz • Output: Voltage 12 VDC Current 500mA

  48. Power Supply • Rechargeable Batteries, Rechargeable, high energy density battery • Low Cost •  lithium-ion battery (Li-ion)

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