Accident Detection and Vehicle Performance Enhancement System

8/17/2019 Accident Detection and Vehicle Performance Enhancement System

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ACCIDENT DETECTION and vehicle performance enhancementSYSTEMUsing WICED SMAT SENSE


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Some Dist!r"ing

StatisticsO Emergence of oad Tra#c In$!ries %TIs&

'as a leading ca!se of Deaths (Disa"ilities in India in )*++,

O Accidents -.,/0 la1h %ann!al& %+ ever2min!te&

O Deaths -+3.)3.45 %one death ever2 6,0min!tes&

O Accidents impose signi7cant costs68 9D: for India %+///-)***&

+8 9N: for lo' income co!ntries


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;No, of persons 1illed per +** accidents


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)**) )**6 )**. )**5 )**< )**0 )**4 )**/ )*+* )*++*

+*****

)*****

6*****

.*****

5*****


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Need for Accident detection

mechanismO The cr!cial time "et'een the accident and getting the

victim medical attention can often "e the di>erence"et'een life and death,

O The proposed Accident detection s2stem can help red!ce

fatalities stemming from car accidents "2 decreasing theresponse time of emergenc2 responders "2 informingthem a"o!t the accident and it@s location as 'ell, This

can "e ver2 !sef!l if the victim has "een involved in an

accident at a place 'here people might not havereference to indicate the accident location or if it hasocc!rred at a secl!ded place,

O The red!ction of time of response in the assistanceservices pla2s a ver2 important role for avoiding deaths

in tra#c accidents3 red!cing the n!m"er of in$!ries andtheir serio!sness,


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:roposed modelfor Accident Detection,

O The proposed model for accident detectionaims to emplo2 a hard'are "lac1 "o %thatma1es !se of WICED SMAT SENSE&installed in vehicles that 'ill 'irelessl2 sendimpact sensor information as 'ell as 9:Scoordinates to local emergenc2 agencies,

O The sensors p!t to !se are theaccelerometer and g2roscope,


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Accelerometer

O An accelerometer is an electromechanical devicethat meas!res acceleration forces, These forcesma2 "e static3 li1e the constant force of gravit2p!lling at o!r feet3 or the2 co!ld "e d2namic -

ca!sed "2 moving or vi"rating the accelerometer,Micro machined accelerometers are a highl2ena"ling technolog2 'ith a h!ge commercialpotential, The2 provide lo'er po'er3 compact andro"!st sensing, M!ltiple sensors are oftencom"ined to provide m!lti-ais sensing and more

acc!rate data ,O In the proposed model the emergenc2 responder

is noti7ed in case of deceleration of car a"ove acertain safe limit,


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92roscopeO 92ro sensors3 also 1no'n as ang!lar rate

sensors or ang!lar velocit2 sensors3 aredevices that sense ang!lar velocit2,

O There are three main applications for g2rosensorsB

• Sense the amo!nt of ang!lar velocit2prod!ced,

Used in meas!ring the amo!nt of motionitself,

E, Chec1ing athletic movement


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• Senses ang!lar velocit2 prod!ced "2 the sensors

o'n movement, Angles are detected viaintegration operations "2 a C:U, The angle movedis fed to and reected in an application, E, Carnavigation s2stems3 9ame controllers etc,

Senses vi"ration prod!ced "2 eternal factors3and transmits vi"ration data as electrical signalsto a C:U, Used in correcting the orientation or"alance of an o"$ect, E, Camera-sha1ecorrection3 ehicle control etc,

In the proposed model it "asicall2 senses the verticalangle deviation and in case of toppling "e2ond aprede7ned range of the angle deviation3 theemergenc2 responder is noti7ed,


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Accident detection

processO The process 'ill "e as follo'sB+, The accident occ!rs,

), The accelerometer and g2roscope in the Wicedsmart sense are a"le to comm!nicate 'ith the

driver@s phone thro!gh FTGE, If the car deceleratesat a rate more than a pre speci7ed val!e %a"ove'hich the impact of s!ch a s!dden change inmoment!m can "e disastro!s& or if it topples3 amessage is sent to an emergenc2 responder !sing9SMH9:S along 'ith the location of the accident

'ith the driver@s phone,6, The help can then "e sent 'itho!t an2 dela2,

., The algorithm for sending the message to anemergenc2 responder 'ith the 9:S location ismentioned in the net slide,


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Accelerometer and92roscope eadings

Deceleration or

ang!lardeviationa"ove aspeci7crate

Insertion ofthe n!m"er

9:S ist!rned

on

The Datais copied

The Messageis inserted

Sendingthemessage

Message Sent

No

No

Yes

STO:


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:ictorial representation


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:erformance

enhancement To enhance the performance of a car3 t'oimportant parameters are ta1en into acco!ntB

O To maintain the engine temperat!re in acertain range for 'hich the coolanttemperat!re is contin!o!sl2 monitored,

O The appropriate t2re press!re,

Foth the parameters are ta1en !p in thefollo'ing slides,


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A 'ater-cooled cooling

s2stem


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The engine of a carJO A car engine prod!ces a lot of heat 'hen it

is r!nning3 and m!st "e cooled contin!o!sl2

to avoid engine damage,O 9enerall2 this is done "2 circ!lating coolant

liK!id !s!all2 'ater mied 'ith an antifreeLesol!tion thro!gh special cooling passages,Some engines are cooled "2 air o'ing over

7nned c2linder casings,


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O A 'ater-cooled engine "loc1 and c2linderhead have interconnected coolant channelsr!nning thro!gh them, At the top of thec2linder head all the channels converge to asingle o!tlet,

O A p!mp3 driven "2 a p!lle2 and "elt from thecran1shaft3 drives hot coolant o!t of theengine to the radiator3 'hich is a form ofheat echanger,

O Un'anted heat is passed from the radiator

into the air stream3 and the cooled liK!idthen ret!rns to an inlet at the "ottom of the"loc1 and o's "ac1 into the channelsagain,


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O The p!mp sends coolant !p thro!gh theengine and do'n thro!gh the radiator,

O The radiator is lin1ed to the engine "2r!""er hoses connected "2 a core a "an1 ofman2 7ne t!"es,

O The t!"es pass thro!gh holes in a stac1 ofthin sheet-metal 7ns3 so that the core has aver2 large s!rface area and can lose heatrapidl2 to the cooler air passing thro!gh it,

O

In an engine at its ordinar2 'or1ingtemperat!re3 the coolant is onl2 $!st "elo'normal "oiling point,


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O

The ris1 of "oiling is avoided "2 increasingthe press!re in the s2stem3 'hich raises the"oiling point,

O The etra press!re is limited "2 the radiatorcap3 'hich has a press!re valve in it,Ecessive press!re opens the valve3 and

coolant o's o!t thro!gh an overo' pipe,

O In a cooling s2stem of this t2pe there is acontin!al slight loss of coolant if the enginer!ns ver2 hot, The s2stem needs topping !pfrom time to time,

O Gater cars have a sealed s2stem in 'hich an2overo' goes into an epansion tan13 from'hich it is s!c1ed "ac1 into the engine 'henthe remaining liK!id cools,


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:roposed MethodF2 monitoring the temperat!re of the coolant liK!id3'e can identif2 'hen the liK!id attains temperat!ress!perior to its !s!al temperat!res, As a res!lt3 it can"e identi7ed 'henever the coolant3 hence theengine3 "ecomes ver2 hot, This 'o!ld send amessage signal to the driver regarding potentialoverheating of the engine 'ell in time "efore ma$ordamage occ!rs to the engine, Also3 as an alternative3the chec1 engine light can "e t!rned on,

The algorithm for the s2stem is mentioned in thenet slide,


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Coolant Temperat!reeading

Temperat!rea"ove aspeci7cval!e

Enginetoo hot

Messageis

inserted

STO:

No

Yes


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Anal2sis of t2re

press!re


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Fene7ts of correct air press!re

O Safet2 -- T2res that are !nder inated canoverheat and over inated t2res can lead to poorvehicle handling on the road,

O Econom2 -- Over or !nder inated t2res s!>er

more damage than those 'ith the correctpress!re and need to "e replaced morefreK!entl2, ehicles 'ith !nder-inated t2res haveincreased rolling resistance and reK!ire more f!elto maintain the same speed,

O Environment – Correct t2re press!res help

maintain optim!m f!el e#cienc2, This can eK!ateto lo'er car"on dioide %CO)& emissions from2o!r vehicle than those from a vehicle 'ithincorrect t2re press!re, Th!s "2 maintaining therecommended air press!re in 2o!r t2res 2o!contri"!te to'ards a cleaner environment,


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Under Inated T2resB

An !nderinated tire cant maintain its shapeand "ecomes atter than intended 'hile incontact 'ith the road, If a vehicles tires are!nderinated "2 onl2 < psi it co!ld lead to tire

fail!re, Additionall23 the tires tread life co!ld"e red!ced "2 as m!ch as )58, Go'erination press!re 'ill allo' the tire to deect%"end& more as it rolls, This 'ill "!ild !pinternal heat3 increase rolling resistance and

ca!se a red!ction in f!el econom2 of !p to58, Yo! 'o!ld eperience a signi7cant loss ofsteering precision and cornering sta"ilit2,While < psi doesnt seem ecessivel2 lo'3remem"er3 it !s!all2 represents a"o!t )*8 ofthe t2res recommended press!re,


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Over Inated T2res:

An overinated tire is sti> and !n2ielding andthe siLe of its footprint in contact 'ith theroad is red!ced, If a vehicles tires areoverinated "2 < psi3 the2 co!ld "e damagedmore easil2 'hen r!nning over potholes orde"ris in the road, igher inated tires cannotisolate road irreg!larities 'ell3 ca!sing them toride harsher, o'ever3 higher inationpress!res !s!all2 provide an improvement insteering response and cornering sta"ilit2 !p to

a point, This is 'h2 participants 'ho !se streettires in a!tocrosses3 trac1 events and roadraces r!n higher than normal inationpress!res, The press!re m!st "e chec1ed 'itha K!alit2 air ga!ge as the ination press!re

cannot "e acc!ratel2 estimated thro!gh vis!alinspection,


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:roposed MethodWe@ll deplo2 press!re sensors on the rims ofthe rear and front 'heels and program themaccordingl2,

If the press!re lies o!tside the normal range3o!r device 'ill send a message to the driverand he can ta1e appropriate steps,

The algorithm is mentioned in the net slide,


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Concl!sionO An economical and e#cient accident control

and vehicle performance enhancement s2stemcan "e designed !sing Wiced smart sense,

O We ma1e !se of the follo'ing sensors in o!r1itB

+, Accelerometer

), 92roscope

6, Temperat!re., :ress!re


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THANK YOU

Made by –Aman agh!vanshiAn1it :aree1

A1shi TomarM!1!l Cha!dhar2ani1a Deoli

Date post:	06-Jul-2018
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Accident Detection and Vehicle Performance Enhancement System

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