Final-Presentation Project “Kuala”

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

Motivation

The desire to monitor the condition of a given road without being there physically.

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 measurement control center where it will be determined if something is wrong with the road.

The Overall System

Project Goal Design and build 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 with zero to little physical presence.

Project Stages

Stage 1: PlanningStage 2: Design – Mechanical and

ElectricalStage 3: Component PurchasingStage 4: ProgrammingStage 5: Debugging and Assembling

Solar Panel30W

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

CCTo O

ther Stones

Bat_Control

Block Diagram of the HubStage 1: Planning

Maintenance – "Watchdog" The maintenance is a software to be

programmed in the CPU of a wisdom stone placed in the hub which can control the status of the phone, battery and solar panel charger.

The maintenance should maintain the functionality of the hub and it’s components without physical presence.

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

The maintenance will receive a signal indicating the current battery level as well as other signals indicating the status of the charge controller.

Stage 1: Planning

Mechanical DesignStage 2: Design

Electrical DesignStage 2: Design

Controllers 1 and 2 are connected to the Wistone CPU and to the rest of the electrical components of the hub.

Phone power and phone battery are controlled by relays (normally open/normally closed).

DC/DC converter to lower input voltage.Voltage divider to proportionally lower

battery level when checking its status since the CPU can accept inputs up to 5V.

Electrical DesignStage 2: 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:

Stage 3: Component Shopping

ProgrammingModified existing Wistone codeAdded support to Kuala cardFound the pins which are

connected to the required components and programmed them to get the correct inputs and to give the correct outputs

This was done in accordance to the chip’s datasheet.

Stage 4: Programming

SummaryThe Kuala project is an integral

part of the Wisdom Stone project.The project was designed to

cover many, if not all of the stages from an idea until it’s completion in order to achieve the set goals.

The project was a great learning experience

THANK YOU