PDR - Project “Koala”Winter 2014High Speed Digital Systems LabPresented by: Stephen TaraginSupervisor: Boaz Mizrachi

Motivation

Relaying information regarding the physical condition of a given road

Part of the “Wisdom Stone” project

Taking it to the “next level” – Relaying the information.

The Overall System

“The Wisdom Stone”

Small electronic devices placed under the roads in various places.

Gathers information about the physical state of the road by means of sampling the vertical acceleration of the road while vehicles drive over.

Each stone processes the information and relays it to the hub, who then relays it to the command center who determine if something is wrong with the road.

Wisdom Stone Block Diagram

MCC Block Diagram

Project Goal

Defining and building an electronic hub which will enable relaying the information gathered by the wisdom stones under the ground to a control center, and to maintenance it.

Block Diagram of the Hub

Solar Panel50W

Charge Controller

Comm Plug(Stone)

Battery

Android Cellphone

Phone Battery

Battery12v, 40 ah

Metal Box

“Maintenance”

USB USB

Bat level

Stat

us

DC/DC Power Status

To M

CC

To Other S

tones

DC/DC

Bat_Control

Maintenance

The maintenance is basically a software written in the main of a wisdom stone placed in the hub which uses GPIO pins to determine the status of the phone, battery and solar panel charger.

We would like to assure the hub and it’s components are working and their status without having to physically be there.

The maintenance should be able to restart the cell phone in an event of software failure, other problems.

The maintenance will receive a signal from the phone indicating it is on/off and will be able to turn the phone on/off remotely.

The maintenance will receive a signal indicating the current battery level and another signal indicating the status of the charger.

“Shopping List”

Component Dimensions Weight Price *

Sony Erricson Xperia neo V

116x57x13 mm 126 g ~200 $

12V 45 ah Battery 242x175x175 mm 13.2 kg ~475 nis

Universal External Antenna For Cell Phones

~20$

12v to 5v converter ~15$

Complete Solar Panel Kit 50W + Charge Controller 12V

55x68x3 cm 6kg ~140$

Metal box plus mounting brackets**

50x40x30 ~100$

Wisdom Stone ~1500$•* Prices not including shipping and tax•** Exact box not yet found

Time Table

Detailed Design, ordering components: 24.12.2013

Finishing with the software and receiving the components: 27.01.2014

Attaching all of the components and assuring they work: 1.4.2014 (after moadei bet).