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Wireless fan (high level design) report - Essay Example

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This fan has different levels of speed. This project will be developed by a microcontroller. The customers would be the old people and people with special needs. The design is made with the following aspects in…
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Wireless fan (high level design) report
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IUPUI ECET490 Fall Hussain Alkhalifa HIGH LEVEL DESIGNE Project Sponsor: Dr. David Goodman Scope 1 Introduction In this project I will design a wireless fan controlled by remote. This fan has different levels of speed. This project will be developed by a microcontroller. The customers would be the old people and people with special needs. The design is made with the following aspects in consideration:
1. Economical which includes the component costs
2. Flexibility.
3. Low power consumption.
4. Less maintenance costs.
1.2 Identification
This document identifies both the business and technical requirements and specifies the functionality to be included in the new Wireless Fan. The current business problem and the objectives of the project, as well as, functional and technical requirements are documented. This document, once it is approved, serves as the basis for:
Determining the high level architecture.
Creating the detailed design.
Monitoring progress during system development.
Providing a successful implementation.
Creating the acceptance test plan of the completed system.
1.3 System overview
The purpose of this High Level Design document is to add, the required detail, to the recent project report to represent a suitable model for circuit.
1.4 Scope
The scope of this project is to architect, design and create Wireless fan. The fan has four switches one of them is turn on/off (A), and the others which are (B,C,D) to change the speed levels of the fan. So I have:
Remote controller (four buttons (A, B, C, D)
Receiver controller inter face with fan (0, 1,2,3)
A will allow 0 to turn on/off
B will allow 1 to increase the speed of the motor (I)
C will allow 2 to increase the speed of the motor (II)
D will allow 3 to increase the speed of the motor (III)
1.5 Document overview
DC Direct Current
AC Alternating Current
2. Referenced documents
1- Regulation of Wireless Communications Systems
 By Frederick J. Day & Hng N. Tr An; Government Inst; Hardcover
2- Multiaccess, Mobility and Teletraffic Advances in Wireless Networks
 By David Everitt, Michael Rumsewicz; Kluwer Academic Pub; Hardcover
3- OFDM Baseband Receiver Design for Wireless Communications
By Tzi-Dar Chiueh, Pei-Yun Tsai
3. System-wide design decisions:
Specifications Format
Display: Number of Characters 30 (minimum)
Size 5’ min. height x 2’ min. width
Wireless Receiver
24v – 50v AC
Wireless Transmitter
Range 5-10 feet
Battery Life 6 months
Supply Voltage (VCC to GND) +5.5 to +15.8 Volts
Operating Temperature 0°C to +55°C
Dimensions 100mm x 60mm x 20mm
Mechanical Parameters
A- Remote :
Buttons: 4
Size 2cm x 2cm (min.)
Actuation Force 0.001 N (max.)
Weight: 2 lbs. (max.)
Color Black
Wireless Module Decoder DS600
B- Receiver
Motor 6 Volt feeders
Receiving module
Programmed chip
Fan vane size 5 cm diameter Length
Weight 3 lbs
Electrical Parameters
Operating Voltage Levels lower than 120V
Current Capabilities
Input and Output Impedances
Gains: Air
Input/output Power: 4 input/ 4 output
Power Consumption
Software
Execution time 34.5 ms
Termination/Reset 1 button
Interrupts Standard ^ assembly
Memory 4.5 MB
Platform Windows PC
Program language assembly language
Block Diagramed
Sending
receiving
System architectural design
The wireless has an exposed antenna. This antenna serves the purpose of boosting transmission of the trigger towards movement of the fan. The components would be light and not jammed because there is meager use of connecting wires. It is vital to note that the switches will possess an indirect link to the decoder. This is to enable the usability of switches. In addition, the switches will possess an angle of 90 degrees to the motor. This is to enable the compatibility of the switches to the motor fan. It is vital to note of the idea that the wireless fan system possesses two core components. These two components have more than a functional separation. The core parts possess a physical and functional separation between the sending and receiving components.
This has a first antenna and a second antenna that link to transmit signals between the same. The decoder is segregated to send and receive signals through the system of antennae. The antennae have a relationship between the two links in a sense that the two signals shift between entities. Therefore, the decoder connects to the motor that rotates to trigger the movement of the blades.
Traceability
The system has four switches that connect to the four sections of the decoder. The decoder connects to the antenna and the LDE. In this sense, the antenna sends a signal to the receiving antenna. The antenna transmits a signal that triggers three levels of the decoder. The decoder, thus, transmits a signal to the motor that rotates. Read More
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