Zoombak A-GPS Universal Locator Guía de usuario descargar pdf (Pagina 8)

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G-Project Description (CW)

G-1 Introduction

People are always looking for alternative modes of energy including alternative modes of

transportation. Bicycles are an affordable alternative to gas powered vehicles, especially if you

live in a city; therefore many people have chosen bikes as a way to transport themselves. Due to

the increase in bicycle use, bicycle theft has also become an issue. Many thefts are due to

improperly securing of the bicycle or failing to secure it at all due to the time it can take. In

order to make a lock that is simple and fast to use as well as secure electronic securing

capabilities have been considered. This led to the Clicker Activated Bicycle Lock (CABL). The

CABL will be capable of mechanically locking onto stationary objects as well as containing an

alarm system to deter theft and a tracking system should theft occur. This system will provide

convenience, security, and peace of mind to any user.

G-2 System Overview

There are seven subsystems that make up the CABL, these are: control circuitry, locking

mechanism, tracking, accelerometer, RF transmitter/receiver, alarm and the power system. The

housing of the locking mechanism is made of a heavy aluminum alloy to securely maintain the

lock as well as remain lightweight. The control allows for the processing of signals throughout

the entire system as well as maintaining timing of the alarms and the state of the system, whether

or not the system is armed or disarmed based on signal from an RF receiver. It consists of a

PROM for state transition, a counter for timing, and a clock to control timing and signal pickup

circuit. The housing for the CABL is lightweight, durable, and waterproof; it consists of a tough

plastic bottle to allow signal to pass through it and to be stored on a metal bottle bracket made

for bicycles. The tracking system consists of a GPS tracker which allows for the location of the

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Zoombak A-GPS Universal Locator Guía de usuario Pagina 8