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Background Ever come out of a store and were not able to find the car? The Short to Medium Range Positional Device (Car Locator) will save time and the embarrassment of losing the car. The Car Locator will assist the owner in finding the car quickly and with ease. Ever come out of a store and were not able to find the car? The Short to Medium Range Positional Device (Car Locator) will save time and the embarrassment of losing the car. The Car Locator will assist the owner in finding the car quickly and with ease.
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Short to Medium Range Positional Device With Security (Car Locator)
Hong J. KimThomas NaJa Heon Ku
Problem Statement The Primary purpose of the Short to Medium Range
Positional Device is to locate an automobile from a short distance with a visual display.
The team will be implementing Radio Frequency (RF), RF sensors, microcontrollers, and Remote Keyless Entry System (RKE) to locate the automobile.
Background Ever come out of a store and
were not able to find the car? The Short to Medium Range Positional Device (Car Locator) will save time and the embarrassment of losing the car.
The Car Locator will assist the owner in finding the car quickly and with ease.
Background
Control Systems Computer Programming PCB Construction and Layout Circuit Analysis and Development Digital Communications.
Objective The objective of the car
locator is to design and produce a reliable car locating device.
The locator will incorporate security for loss or theft of the device.
Objectives
Wireless Communications Security Power Consumptions User Interface
Phase 1
Design Concept
Pugh Matrix
Specifications
Components
Order Parts
Pugh MatrixDesign Constraints Weight Using ISM
bandUsing WiFi
Using GPS
The system will use small size battery (Disk battery)
8 8 5 3
The system must be programmable 7 7 7 7
Device will be easy to use 9 8 7 7
The device must be portable 11 9 9 9
Simple function programming 7 6 4 4
Must work in any weather conditions. 10 10 10 10
Antenna Range must be within 500 ft. to 1 mile. 12 10 6 10
Must have low power consumption 12 10 5 7
The system will incorporate the Remote Keyless Entry System (RKE) with code rolling feature.
12 10 1 1
Easy to read. 12 9 9 8
Total 100 814 631 675
Specifications
RF 2.4 GHZ (ISM band)
RKE Features Security Features Power Consumption User Interface (ease)
Ordering Components Evaluation Boards RF Wireless
Components Security Components Remote Keyless Entry
System Circuit Components Programs
Phase 2
RF Concepts Car Unit Remote Unit
RF Concepts
Directional Sensing
Omni Directional 2.4 GHZ ISM Band
Car Unit
Omni Directional Transceiver
Remote Unit Directional
Sensing Cardioid
Phase 3
Security Fingerprint Scanner Rolling Code
Techology
Phase 4
Interface Remote Unit
LCD/LED Display RKE Functionality
Car Unit Reset/Reconfigure
Phase 5
Power Consumption Remote Unit
Disc, AA, AAA Batteries
Car Unit Car Battery
Functional Block Diagram
Filter and
Amp
Analog to
Digital Convert
er
Digital to
Analog Convert
er
Interface and Displa
y
Microproces
sor
Transceiver in Car
Filter and
Amp
Antenna
Power Manage
ment
Antenna
ADC and Filter and
Amp / DAC and Filter and
Amp
Microproces
sor
Transceiver in
the Remote
D D
AA
D
A A
W
D
A
W
D - DigitalA - AnalogW - Wireless
Planned Schedule
Estimated Cost*
Equipment Quantity Cost Total
Microcontroller
development board
2 $150 - $300 each $300 - $600
RF antenna
development boards
2 Š 3 $100 each $200 - $300
Components (resisters,
caps., transistors, etc.)
$200 $200
RKE components 1 $100 $100
Total estimate $800 - $1200
*Total cost to be determined
Conclusion Achieving
Specifications Scheduling Marketing
Equals Success!!!!
