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BLIND SPOT MONITORING USING PROXMITY SENSOR
Raviraj NayakNarendra Kintali
Professor:Daniel LlamoccaCourse: 508
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Why is Blind Spot Monitoring (BSM) important?
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National Highway Traffic Safety Administration,
840,000 /Annually
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BLOCK DIAGRAM
PROXIMITY SENSOR
INDICATOR(led)
Power supply Microcontroller
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1. Ultra Sonic2. Lidar3. Infra Red
PROXMITY SENSOR
COMMUNICATION 1. Pwm2. I2c3. SPI
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I2C COMMUNICATION
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GARMIN LIDAR v3 I2C
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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
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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
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Adapted from – D. Llamocca, OU Class Notes Winter 2017
MAIN FSM
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STRATEGY
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PUSHING LIMITS
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VIDEO
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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
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QUESTIONS