Mid-Presentation Project “Koala”

Winter 2014High Speed Digital Systems LabPresented by: Stephen TaraginSupervisor: Boaz Mizrachi

Single semester project

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 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.

The Overall System

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.

Creating the ability to remotely maintenance the hub.

Solar Panel30/50W

Charge Controller

Comm Plug(Stone)

Battery

Android Cellphone

Phone Battery

Battery12v, 45 ah

Metal Box

“Maintenance”

(MCU in the wisdom stone)

USB USB

Bat level

Stat

us

DC/DC Phone reset

To M

CC

To Other Stones

Bat_Control

Block Diagram of the Hub

Maintenance – "Watchdog" The maintenance is basically a software written in

the cpu of a wisdom stone placed in the hub which determines 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 should also be able to turn the phone on/off remotely.

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

Orcad Design

SYSTEM BOMSystem BOM

description URL p/ n Shipping time Minimum order quantityquantity per system systems Total quantity to orderOrder Quantityunit price cost [$]

Smartphone http://www.ebay.com/itm/New-Sony-Ericsson-Xperia-Neo-V-Phone-MT11i-Android-5MP-WiFi-GPS-Unlocked-White-/271262650875?pt=Cell_Phones&hash=item3f288391fbSony Ericsson Xperia (Neo 12-30 days 1 1 3 3 1 $177 $177

12v 45ah battery http://www.alexsander.co.il/product.aspx?p_id=1169012v 45ah volta battery 7 business days 1 1 3 3 1 $136 $136

Solar panel plus charge controller http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=300960263903#vi-content

30W solar kit plus 10A charge controller by olensun 3-5 business days 1 1 3 3 0 $245 $0

antenna for phone http://www.ebay.com/itm/NEW-CELL-PHONE-SIGNAL-BOOSTER-EXTERNAL-ANTENNA-FOR-YOUR-CAR-OR-HOME-GSM-AND-CDMA-/150879929825?pt=LH_DefaultDomain_0&var=&hash=item23212505e1#shpCntIdcellphone signal booster external antenna11-22 days 1 1 3 3 1 $27 $27

DC DC converter http://dx.com/p/dc-12v-to-dc-5v-converter-voltage-regulator-black-147841DC12v to DC 5v converter7-10 business days 1 1 3 3 1 $10.50 $11

relay http://dx.com/p/1-channel-5v-low-level-trigger-relay-module-for-arduino-1523535v NO NC relay 7-10 business days 1 2 3 6 3 $3.30 $10

spare phone battery http://dx.com/p/ismartdigi-ba700-1500mah-3-7v-replacement-battery-for-sony-ericsson-mt11i-st18i-mk16i-white-188955replacement battery for sony erricson xperia mt11i7-10 business days 1 1 3 3 1 $8.50 $9

antenna for stone http://www.ebay.com/itm/10pcs-Helical-antenna-433MHz-/330950545641433 MHZ helical antenna 10 pieces14-30 days 10 1 3 3 10 $0 $4

Metal box http://shakedo.zapages.co.il/%D7%A7%D7%95%D7%A4%D7%A1%D7%90%D7%95%D7%AA-%D7%9E%D7%AA%D7%9B%D7%AA-%D7%95%D7%90%D7%9C%D7%95%D7%9E%D7%99%D7%A0%D7%99%D7%95%D7%9Dtarpu 30x30x30 cm self collection 1 1 1 1 1 $66 $66

Wisdom stone 1 3 3 1 $0 $0USB cable: type a male->type cellphone male

http://www.ivory.co.il/catalog.php?id=11683 USB cable 2 male-male 6 business days 1 1 3 3 1 4.3 $4

USB cable: type a male->type b male

http://www.ivory.co.il/catalog.php?id=9316 USB cable 2 male-male 6 business days 1 1 3 3 1 2.85 $3

phone holder http://www.ktl.co.il/Product.asp?productid=23818phone holder 10 business days 1 1 3 3 1 7.15 $7

Mounting brackets/screws/bolts Tambur/homecenter ? ? ? ? ?

452.5BOM sub total:

Task ScheduleTask Complete

dTarget Date

Studying and defining the hub

Yes

Choosing components + Bom

Yes

Orcad design Yes

Order components wait for them to arrive

No March 1st

Building the board (parallel)

No March 1st

Connecting all of the components

No March 8th

Learning MPlab No March 15th

Programming plus debugging

No March 22nd

Project completion No April 1st