Concept to Implementation. Cases studies

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Kelley Blankenship
5 years ago
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1 Concept to Implementation Cases studies

2 Back Posture Sensing

3 Back Sensor -Initial Concept

4 Block Diagram

5 Implementation Concept

6 Back Sensor Sensor and Processor Enhancement Flex Sensor Only PIC16F877 (8 Bit) Flex Sensor and Cap Array DSPIC (16 bit )

7 Earthbox Watering System

8 Seepage Port Earth Box System

9 Seepage Sensor

10 Automatic Watering System Water Source SS SS SS SS 1 Wire Network Solenoid Control Water Value Seepage Sensor Solid State Relay SS

11 Refined Block Diagram

12 Implementation

13 Remote Box Implementation

14 Hardware Electronics 1-wire sensors Microcontroller

15 Firmware 1-Wire Communications Main Loop Time of Day Clock handler LCD Display And keypad

16 MOON LIGHT Aquarium Digital Lighting

17 Aquarium Zoology

18 Normal Aquarium

19 Moon Light Aquarium

20 Benefits: The benefits of Moonlight technology is many: Reduction to both fish and invertebrate stress because the user s aquarium environment approaches that of a natural reef Improvement of aquarium coral health. Coral are naturally stimulated by moonlights. Some species of coral actually spawn in conjunction with the Lunar Cycle User Enjoyable viewing of your aquarium while main lights are not on to more relaxing light environment

21 Moon Light Simulation for Salt Water Aquariums MOON Phases Six Blue LEDs same Wavelength as Moonlight PIC Microcontroller LED Lamp Assembly Manual Moon Phase Setting Current Moon Phase Setting Wall Transformer

22 Product Concept 1. Moonlight incorporates an advanced electronic design that offers the user power efficiency, accurate moon light spectral wavelength control and calibrated illumination to fully realize a simulated Lunar Cycle solution 2. Intensity control knob allows users to manually set the proper Moon Cycle phase luminosity as needed 3. Moonlight provides continual feedback to user on the current Moon Cycle phase 4. The low power system consists of a main controller unit and attached pod. The pod houses six 470nm Blue Light LEDs (approx wavelength of Moonlight). LEDs by design should provide tens of thousands of hours of usage. 5. Pod is Velcro or suction cup attachable to allow the user placement of light source to suit individual lighting ascetics over a wide variety of aquarium sizes without need for special attachment or custom drilling. 6. All pods use Silicone sealant to protect electronic from salt environment. The main controller uses a UL certified detachable power supply to meet UL appliance safety precautions. 7. Materials under $40 8. Moon Light can be continuously operations and work in conjunction with normal lights at all times

23 Moon Light Fixture

24 Moon Phases Phase Description New Moon Waxing Crescent First Quarter Waxing Gibbous Full Moon Waning Gibbous Last Quarter Waning Crescent The Moon's un-illuminated side is facing earth. The moon is not visible The Moon appears to be partly but less than one-half illuminated by direct sunlight. One-half of the moon appears to be illuminated illuminated more than one half The moons appears to be illuminated completely more than one-half illuminated One half of the moon appears to be illuminated Less than one half appears to be illuminated

25 Moon Simulation Scheme Display Phase Percent Light # of 6 LEDs on 0 1 New Moon Waxing Crescent 0% none (0/6) 40% (2/6) First Quarter Waxing Gibbous Full Moon Waning Gibbous Last Quarter Waning Crescent 50% (3/6) 60% (4/6) 100% (6/6) 60%(4/6) 50%(3/6) 40%(2/6) 29.5 day cycle 8 phases to cycle Assume days/phase

26 Moon Light Controller WALL TRANSFORMER +5V REG +5V 10 MHZ Crystal PIC 16F877 Microcontroller A/D IN Manual Phase Setting +5V Power On Reset

Figure 1: Phases of the Moon

Figure 1: Phases of the Moon INVESTIGATING LUNAR PHASES Introduction The Moon is a dark rocky object that is illuminated by reflected sunlight. It is this reflected light which we see as moonlight. Because the Moon orbits our Earth