Wistron NeWeb RI03 Blind Spot Warning (BSW) and Rear Cross Traffic Alert (RCTA) radar sensor. User Manual

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Document ID	3770131
Application ID	VdItHkhQHw6KBSKUKR3x6w==
Document Description	Users Manual
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Document Type	User Manual
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Date Submitted	2018-03-06 00:00:00
Date Available	2018-03-09 00:00:00
Creation Date	2018-02-26 11:17:48
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Document Title	Blind Spot Warning (BSW) and Rear Cross Traffic Alert (RCTA) specification
Document Creator	Acrobat PDFMaker 11 Word 版
Document Author:	9505876

Blind Spot Warning (BSW) and Rear Cross Traffic Alert (RCTA)
specification
Model Name: UMD-RI03, UMD-RI03 –L, UMD-RI03 -R
Version: V01
2018/2/21
Jimmy JW Chang
Contents
1 Scope......................................................................................................................................................3
2 Terms and definitions ............................................................................................................................3
3 Reference ...............................................................................................................................................3
4 General description ................................................................................................................................4
4.1
System introduction .......................................................................................................................4
4.2
System diagram .............................................................................................................................4
4.3
Hardware Block Diagram ..............................................................................................................4
4.3.1
Right and left side Sensor ..............................................................................................................4
4.3.2
ECU control box ............................................................................................................................5
4.4
Software Implementation...............................................................................................................5
4.5
Software Block Diagram ...............................................................................................................5
5 System Function Description.................................................................................................................6
5.1
Function definition.........................................................................................................................6
5.1.1
BSW function ................................................................................................................................6
5.1.2
RCTA function ...............................................................................................................................7
5.2
Connecter pin define ......................................................................................................................8
6 Technical specification ........................................................................................................................10
6.1
Basic parameters: .........................................................................................................................10
6.2
Performance parameters: .............................................................................................................10
6.3
Field of View (FoV) ..................................................................................................................... 11
6.4
Detection target ............................................................................................................................ 11
6.5
The false alert rate and detection rate .......................................................................................... 11
Mechanical requirements .....................................................................................................................12
7.1
Weight ..........................................................................................................................................12
7.2
Sensor size ...................................................................................................................................12
7.3
Installation ...................................................................................................................................13
System Function Design ......................................................................................................................15
8.1
BSW warning...............................................................................................................................15
8.2
RCTA warning .............................................................................................................................15
8.3
Self diagnostics ............................................................................................................................15
Design Verification ..............................................................................................................................16
9.1
Environmental Test ......................................................................................................................16
9.2
Performance test ..........................................................................................................................16
10
Federal Communications Commission (FCC) Statement............................................................17
1 Scope
This document describes the system development of small form factor (SFF) blind spot
warning (BSW). This is includes technical specification, system function design requirements,
mechanical design/ installation, software interface/communication and test verification.
2 Terms and definitions

BSW (Blind spot warning):This system assists drivers in driving safely by detecting and
warning them of the presence of other vehicles in the blind spot area

RCTA (Rear cross traffic alert): This function assists driver in rear gear by detecting and
warning them of other vehicle driving from side of rear.

24GHz ISM Band (Industrial scientific medical radio): It is radio bands (portions of the
radio spectrum) reserved internationally for the use of radio frequency (RF) energy for
industrial, scientific and medical purposes other than telecommunications. The
frequency bandwidth 24~24.25 GHz can be used for worldwide radar application. We
also call this is Narrow Band Radar, which is different from ultra wide band radar.

FOV (Field of view): The maximum azimuth angle that radar system can detect the
target vehicle.
3 Reference

ISO 17387

ES-X82010

ISO16750
4 General description
4.1 System introduction
This system is composed of two 24 GHz narrow-band sensors. Its intended function is for
blind spot warning (BSW) to assist driver for the driving safety.
4.2 System diagram
The system includes a master sensor and a slave sensor. Two sensors are communicated
by “Private CAN”. The external interface is to connect with ignition power (IGN, 12V) and
CAN message of vehicle information.
The communication interface between two sensors is CAN (Private CAN). The information
transmitted through this CAN relates to vehicle data, sensor position setup data, warning
parameter setup data and normal warning data output.
ECU will transfer the vehicle data to sensors and control the HMI warning output.
ECU with Buzzer
Sensor(Left)
IGN
GND
Private CAN
IGN
GND
Speed
IND_R/L
Rear light
ILL
LED_R/L
Sensor (R)
4.3 Hardware Block Diagram
4.3.1
Right and left side Sensor
It is composed of RF tuner and DSP. It includes one Vehicle CAN (optional) and one Private
CAN.
4.3.2
ECU control box
Ii is mainly composited by the MCU. It have radar conversion information 、HMI output and
Gyro simulated the hardware of Yaw rate(Reserved) .
4.4 Software Implementation

MPLAB IDE V8.86

Matlab 2012b
The software design process is mainly for detection, tracking and warning. It also provides
self-diagnosis.
4.5 Software Block Diagram
The right and left sensor software structure shows below. The communication between right
and left sensor is through CAN, which is Private CAN.
5 System Function Description
5.1 Function definition
5.1.1
BSW function
BSW system is designed for monitoring adjacent lane and providing warning. The warning
zone definition is below.

The warning distance of passenger vehicle is 7m behind the rear of subject vehicle.
(Normal driving behavior for overtaking)

There is non-warning zone at side of vehicle 0.5m.

The warning width may be adjusted by subject vehicle speed.

The activation speed of system is 10km/h.
Right side Blind zone
0.5m
1m
3m
7m
Center of the car
0.5m 1m
7m
Left side Blind zone
3m
5.1.2
RCTA function
RCTA warning area shows below. The collision time should be less than 2 seconds for the
collision area.
Parameter
Description
Default
Unit
Xcf
The length of detection area from rear of subject vehicle in front.
1.5
Xcr
The length of detection area from rear of subject vehicle in in rear.
Yc
The length of center and edge of subject vehicle.
0.8
TTC_RCTA
Time to collision for RCTA
2.5
sec
Active_SPD_Min
The minimum active speed of RCTA
-10
kph
Active_SPD_Max
The maximum active speed of RCTA
kph
TV_Speed_min
The minimum speed of target vehicle
m/s
TV_Speed_Max
The maximum speed of target vehicle
m/s
5.2 Connecter pin define
There are 2 sets 6 PIN connecter in the system, Follow is usage and pin define of connecter.
 6 PIN connector (Left sensor):
Molex MLX0314036110
 Usage:
Right sensor connection
 Pin definition of connecter:
Pin No

Signal Name
V_IN
GND
S_PRIVATE_CAN_H
S_PRIVATE_CAN_L
VEHICLE_CAN_H
VEHICLE_CAN_L
I/O/P
I/O
I/O
I/O
I/O
Usage
Note
Power input
Ground
-----
Private CAN
Twist
Vehicle CAN
Twist(Reserved)
6 PIN connector (Right sensor):
Molex MLX0314036110
 Usage:
Left sensor connection
 Pin definition of connecter:
Pin No
Signal Name
V_IN
GND
S_PRIVATE_CAN_H
S_PRIVATE_CAN_L
VEHICLE_CAN_H
VEHICLE_CAN_L
I/O/P
I/O
I/O
Usage
Note
Power input
Ground
-----
Private CAN
Twist
Vehicle CAN
Twist(Reserved)

ECU 24PIN connector:
HTH24FW
 Usage:
Right and left sensor connection.
 PIN definition as below:
Pin
10
11
12
Definition
POWER_IN
NA
GND
SPD
VEHICLE_CAN_H (Reserve)
VEHICLE_CAN_L (Reserve)
GND
SENSOR_CAN_H
SENSOR_CAN_L
LED_GND
LED_GND
SW_LED
Pin
13
14
15
16
17
18
19
20
21
22
23
24
Definition
POWER_IN
GND
GND
SW
Reverse Signal
Head Light
Buzzer_EXT (reserve)
TURN_R
TURN_L
LED_GND
LED_R
LED_L
6 Technical specification
6.1 Basic parameters:

Operating voltage range: 9 V–16 V

Typical operating voltage: 13.5 V

Ambient operating temperature: –40 °C to +85 °C

Maximum power consumption: 6 W

Operation frequency: 24 GHZ

Waterproofing: IP67
6.2 Performance parameters:

Frequency :

24.065 – 24.225Ghz (UMD-RI03)
24.075 – 24.225GHz (UMD-RI03 –L ) left side
24.065 – 24.215GHz (UMD-RI03 –R ) Right side
FOV: 120°

Channel number：1024

Output power：< 104.81 dBuV/m

Range accuracy: 0.25 m

Range resolution: 1.0 m

Velocity accuracy: 0.08 m/s

Velocity resolution: 0.32m/s

Angle accuracy: +/-1 degree (between azimuth angle -40~+40 degrees)

Maximum number of tracking objects: 32

Cycle time: 40.96 ms
6.3 Field of View (FoV)
The field of view angle is about 120 degrees.
6.4 Detection target
 Truck, Passenger Car, Motorcycle.
6.5 The false alert rate and detection rate
 Low false alert rate: Radar system has lower false alert rate even driving close to
complex environment. The false alert rate is lower than 5 times when driving 100km.
 Accurate detection rate (Low missing rate): In normal driving case, the accurate rate
is very high.
99% for Truck and Passenger Car
98% for Motorcycle.
7 Mechanical requirements
7.1 Weight
The sensor weight is 100±5g for each sensor.
7.2 Sensor size

90.4*83.1*18.93±3 mm (L*W*H)

The figure shows sensor outline below.
UMD-RI03, UMD-RI03 –R
UMD-RI03 -L
7.3 Installation

There are three locations for affixing the device as illustrated in the following diagram.

The three locations for affixing are different between right and left sensor.
Left
Right

Left sensor is installed inside of bumper at left rear side of subject car. The connector is
downward. Refer to figure below.

Right sensor is installed inside of bumper at right rear side of subject car. The
connector is downward. Refer to figure below.

Azimuth angle = 45°。It could follow the performance for adjusting.

Elevation angle = 0.5~3.5° , which is related to the installation height.

ECU box put on suitable place.
8 System Function Design
8.1 BSW warning
When speed of subject vehicle reaches 10km/h, BSW system will monitor the vehicles at
adjacent lane. When there is vehicle at warning zone or closing to warning zone, the system
can monitor and provide the warning message by CAN bus and output warning by LED or
buzzer to prevent potential collision.
The system will provide two levels warning.

The first level warning will provide visual warning by LED.
 The second level warning will provide not only visual warning, but also acoustic warning,
like buzzer, to show the immediate risk. The buzzer design can be done by either in
ECU or in buzzer on vehicle.
8.2 RCTA warning
When driver selects rear gear, RCTA system will be enabled. When there is target car enters
detection zone and it may cause potential collision (TTC 2.5 seconds), the system will
provide the LED and buzzer warning to remind driver. But if the speed of rear direction is
larger than 10km/h, the system will not guarantee coverage.
8.3 Self diagnostics
The system will perform self diagnostics during the boot up. When radar system is operating,
it is still monitoring and inform driver once the system error message comes out, for example
no CAN message from slave sensor.
9 Design Verification
9.1 Environmental Test
Refer to the test flow and test item below.
PERFORMANCE/ FUNCTION/ INSPECTION
EVALUATION
Total 45pcs
Normal Power Supply
Voltage Test
0.5 DAY(4.1)
Group A – 3 pcs /
25days
Group B – 3 pcs /
16days
Group C – 3 pcs /
15days
Group D – 3 pcs /
6days
Low Temperature
shelf test
3 DAYS(4.10)
Dew formation
test
1 DAY(4.18)
Thermal
characteristic test
1 DAY(4.24)
Dust test
1 DAY(4.19)
Low Temperature
Operation test
3 DAYS(4.11)
Thermal and
humidity cycle test
10 DAYS(4.16)
Ozone Resistance
Test
3 DAYS(4.27)
Vibration test
- Operating
3 DAYS(4.20-1)
High Temperature
shelf test
4 DAYS(4.12)
Steady humidity
test
4 DAYS(4.17)
Water resistance
test - Rain
7 DAYS(4.25-1)
Vibration test
- Not Operating
1 DAY(4.20-2)
High Temperature
Operation test
5 DAYS(4.13)
Temperature Cycle
test
10 DAYS(4.14)
Water resistance
Test - Liquid
Dropping
1 DAY(4.25-2)
Salt Water Spray
Test
4 DAYS(4.26-2)
Group E – 3 pcs /
42days
Ehdurance test
42 DAYS(4.23)
Group I – 6 pcs /
5days
Group F – 3 pcs /
42days
Thermal Shock test
42 DAYS(4-15)
Group J – 6 pcs /
1days
Fluid Resistance
test - Immersion
Test
1 DAY(4.28-2)
Fluid Resistance
test - Coating Test
5 DAYS(4.28-1)
Shock Test
1 DAY(4.21)
Group K – 3 pcs /
1 DAY
Group L – 3 pcs /
29days
Salt Water Spray
Test
29 DAYS(4.26-1)
Drop Test
1 DAY(4.22)
Group M – 3 pcs /
3 DAY
CISPR 25 Test
NCC/FCC
Certifcation
Group G – 3 pcs /
6days
Group H – 3 pcs /
12days
Supply Voltage
Fluctuation Test
(Electric Load)
0.5 DAY(4.2-1)
Transient Voltage
Impression Test
0.5 DAY(4.7-4)
Supply Voltage
Fluctuation Test
(Engine Starting)
0.5 DAY(4.2-2)
Radiated Transient
Voltage Test
0.5 DAY(4.7-3)
Supply Voltage
Intermittent Test
(Battery Chattering)
0.5 DAY(4.3-1)
Transient Voltage
Immunity Test
(Along Line)
0.5 DAY(4.7-1)
Supply Voltage
Intermittent Test
( IG Key Switch)
0.5 DAY(4.3-2)
Power Voltage
Reverse
Connection test
0.5 DAY(4.4)
Overvoltage test
(A method)
0.5 DAY(4.5-1)
Overvoltage test
(B method)
0.5 DAY(4.5-2)
Supply Voltage
Instantaneous
Interruption
0.5 DAY(4.6)
ESD test
(Handling)
1 DAY(4.8-1)
ESD test
(Operation)
1 DAY(4.8-2)
9.2 Performance test
Refer to ISO17387 for stationary, dynamic test and road test.
Transient Voltage
Immunity Test
(Except line)
0.5 DAY(4.7-2)
Conducted
Electrometric Test
3 DAYS(4.9.1)
Radiated
Electrometric Test
3 DAYS(4.9.2)
Broadband
Emission
Measurement
1 DAYS(4.9.3)
Narrowband
Emission
Measurement
2 DAYS(4.9.4)
10 Federal Communications Commission (FCC) Statement
You are cautioned that changes or modifications not expressly approved by the part responsible for
compliance could void the user’s authority to operate the equipment.
This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant
to part 15 of the FCC rules. These limits are designed to provide reasonable protection against harmful
interference in a residential installation. This equipment generates, uses and can radiate radio frequency
energy and, if not installed and used in accordance with the instructions, may cause harmful interference
to radio communications. However, there is no guarantee that interference will not occur in a particular
installation. If this equipment does cause harmful interference to radio or television reception, which can
be determined by turning the equipment off and on, the user is encouraged to try to correct the
interference by one or more of the following measures:
-Reorient or relocate the receiving antenna.
-Increase the separation between the equipment and receiver.
-Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
-Consult the dealer or an experienced radio/TV technician for help.
This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions:
1) this device may not cause harmful interference, and
2) this device must accept any interference received, including interference that may cause undesired
operation of the device.
FCC RF Radiation Exposure Statement:
1. This Transmitter must not be co-located or operating in conjunction with any other antenna or
transmitter.
2. This equipment complies with FCC RF radiation exposure limits set forth for an uncontrolled
environment. This equipment should be installed and operated with a minimum distance of 20
centimeters between the radiator and your body.

---

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Author                          : 9505876
Company                         : Jimmy JW Chang
Create Date                     : 2018:02:26 11:17:48+08:00
Modify Date                     : 2018:02:26 11:17:58+08:00
Source Modified                 : D:20180221092406
Subject                         : Model Name: UMD-RI03, UMD-RI03 –L, UMD-RI03 -R
Tagged PDF                      : Yes
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Format                          : application/pdf
Title                           : Blind Spot Warning (BSW) and Rear Cross Traffic Alert (RCTA) specification
Description                     : Model Name: UMD-RI03, UMD-RI03 –L, UMD-RI03 -R
Creator                         : 9505876
Producer                        : Adobe PDF Library 11.0
Headline                        : Model Name: UMD-RI03, UMD-RI03 â•fiL, UMD-RI03 -R
Page Layout                     : OneColumn
Page Count                      : 17

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