BLIND SPOT MONITORING USING PROXMITY SENSOR

Raviraj NayakNarendra Kintali

Professor:Daniel LlamoccaCourse: 508

Why is Blind Spot Monitoring (BSM) important?

National Highway Traffic Safety Administration,

840,000 /Annually

BLOCK DIAGRAM

PROXIMITY SENSOR

INDICATOR(led)

Power supply Microcontroller

1. Ultra Sonic2. Lidar3. Infra Red

PROXMITY SENSOR

COMMUNICATION 1. Pwm2. I2c3. SPI

I2C COMMUNICATION

GARMIN LIDAR v3 I2C

ET

FSM_MAIN

wr_rdq

zR

zF

zFhd

Ei Ed Ea Eo

SDA

E

L

LEFT

E

L

LEFT

E

L

LEFT

1

s

2

0

2

8

8

0x62

wr_rdwr_rdq

dout

dout

dout

Ei

address

data

Ea

Ed

E

LEFTEo

din

8

E

Ewr

SDAi

Q

counter

0 to 7

E

sclr zzQ

EQ

sclrQ

FSM_SCL

so

start_sclstop_scl

Q

counter 0 to

SCL_T/2-1

E

sclr zzT

sclrT

zR

wr_reg_LIDAR_v3

L

done

odata

start

swr

so

T

FSM_ACK

err

st

0

Ewr swr

start_sclstop_scl

zF zFhd

0SCL

zR zFhd

SDAoSDAoe

dn

FPGA LIDAR_v3 INTEGRATION

Adapted from – D. Llamocca, OU Class Notes Winter 2017

S1resetn=0

address 0x00

data 0x04

wr_rd 1, start 1

0

1

done

S2

S3data 0xXX

S4

1err

0

er 0 er 1

wr_rd 0, start 1address 0x01

done0

err

er 0 er 1

odata(0)1

0

address 0x09

S5

data 0xXX

wr_rd 0 , start 1

0sel

1address 0x0f

1

done0

S6

E_h 11

err

0

er 0 er 1

address 0x09

S7

data 0xXX

wr_rd 0 , start 1

0sel

1address 0x10

1

done0

S8

E_l 11

err

0

er 0 er 1

Adapted from – D. Llamocca, OU Class Notes Winter 2017

FSM

Adapted from – D. Llamocca, OU Class Notes Winter 2017

MAIN FSM

STRATEGY

PUSHING LIMITS

VIDEO

CONCLUSION

• Successfully integrated Lidar v3• The accuracy of distance measurement is 1cm• An alert is triggered when a object comes within a pre-set distance (representing the BS Zone)•Affordable and reliable blind spot monitoring system

Future works: Need to be tested in different environmental/lighting conditions

QUESTIONS