Safe Fleet Rear View Safety RVS-350 User manual

DRIVER FATIGUE
MONITORING SYSTEM
RVS-350
User Manual

Product Composition
*RVS-350 includes the host and 5 pin signal line. It can work on all types of vehicle, both 12V and 24V
power supply.
Caution
Do not attempt to disassemble or alter any part of the equipment if you are not authorized
professional
Do not adjust system while driving.
Please handle carefully, avoid dropping or subjecting the product tosevere impacts.
Do not clean or maintain the equipment with chemical solvent or thinner, it may damage the
surface.
Do not allow the product to come into contact with or become immersed in water or other
liquids. Do not store the product in humid/dusty areas.
Do not heavily drag or kink the cable, do not place heavy object on the cable. This may
cause a fire.
Special legal statement: The RVS-350 is only a monitoring system, it alone does not guarantee
safe driving. Please note that Rear View Safety is not responsible for any accidents.

While every effort has been made to ensure that the information contained in this guide is
accurate and complete, we assume no liability for anyerrors oromissions.
We reserve the right tochange the specifications ofthe hardware and software described herein
at anytime without prior notice.
Note
◆The RVS-350 does not recognize the people who have only one eye, white eyebrows, rough
scars or wrinkles around eyebrows.
◆The product's storage temperature is -45°C ~ +85°. The working temperature in cab is -10°C ~
+50° C.If the cab temperature is below -10°C or above +50°C,thesystem automatically become
dormant. Once the cab temperatures reaches the normal working temperature, it will start work
automatically again. If the system has been working, itdoesn't matter even ifthe temperature
decreases orincreases.
Installation
Note: We recommend professional installation.
1. Connect 5 pin signal cable connect with power supply. Place according to the part of AVL
System (GPS) Connection, connect the 5 pin cable of host with 5 pin signalcable.
2. Install the device on the dashboard directly in front of the driver. The degree between the
installation location and the driver’s normal driving position should be within 20°. The
RVS-350 can be fixed on uneven surface as long as thecamera is trained onthe driver’sface.
3. Tear the protective film from suction cup of bracket, put the host on the holder (If choose
simple sticker bracket, please omit this step) Tear red sticker of holder’s bottom, put the host on
optimal position of dashboard. Train the lens on your face and adjust the position of the lens
according to the state of the green light. Do not block the main display parameters of the
instrument panel.
4. The host connected with bracket, the lens must be installed vertical. Bracket can be adjusting
the height from screw on the right side. Bracket has two universal adjustable balls. The lens
must be installed vertically. That means the green light and the center of the lens remain
vertical. Don’t press the double-sided adhesive tape too firmat first, so any inappropriate
positioning can be easily re-adjusted.
5. To test installation, sit normally in the vehicle,ifthe green light ofthe camera is bright or
flashing this indicates that the driver's eyes have been detected. The distance from lens to the
driver's eyes should be between 60cm-90cm. When the driver are looking at the front and the
green light stays bright, it is properly installed. Adjust the correct position of the camera so the
green light can keep on as far as possible. A flashing green light is normal when the driver
opens their eyes, especially for driverswearing rimmed spectacles.
6. If the dashboard of truck and bus is low, install the RVS-350 at a higher position. The host
should not be higher than the driver’s eyes and the angle between the installation location
and the driver’s eyes should not exceed 30°.
7. The distance from lens to the driver's eyes should be between 60cm-90cm. For some cases,

including under the strong light, or for drivers wearing glasses, the distance should be
between 60cm-70cm. Usually the distance is between 70cm to 80cm.
8. Sit in the normal driving position. If the green light is on/blinking, this indicates that the driver
has been detected.If the green light is still on or flashing when the driver moves from
left/right and down/up, The system is properly installed.
Sensitivity Setting
You can adjust the sensitivity of the RVS-350. Every setting will quickly detect a
change in the driver's eyes, however the alarming time can be adjusted.
ON
1 2 3 4
Switch
DP-1.2.3.4 switch to down(off)
As shown above, the toggle switch located at the back side of the product, it will be placed in the
off position upon system arrival.
1A: DIP1=OFF(pull down), for testing sensitivity(high sensitivity,
for test use)
1B: DIP1 =ON (pull up), for normal sensitivity. It takes a little bit
more time to alert driver when eyes move.
Fatigue Alarming Speed Setting
DIP2 and DIP3 switches, for fatigue alarming speed setting (when vehicle
speed is lower than warning speed, no alarm; when parking, reversing, low
speed inspecting etc, automatic no alarm.)
DIP2=OFF (down), DIP3=OFF (down), any speed will alarm.
DIP2=OFF (down), DIP3=ON (up), alarm when more than 20KM/H.
DIP2=ON (up), DIP3=OFF (down), alarm when more than 30KM/H.
DIP2=ON (up), DIP3=ON (up), alarm when more than 45KM/H.
Volume Adjustment
ON
1 2 3 4
(1A)
ON
1 2 3 4
(1B)
ON
1 2 3 4
(2A)

ON
1 2 3 4
The volume can be changed by adjusting the switches (DP-4).
Notes:
(3A)
3A: DIP4=OFF (down), high volume.
DIP4=ON (up), low volume.
After adjusting theDIP sensitivity switch, the settings will only take effect once the system is
disconnected and re-connected. A change in the volume doesn’t require the system to be
disconnected to take affect.
RVS-350 Speed Alarm
1. When the speed islower than the alarm,the RVS-330 does not alert the driver.
2. Speed detection is calculated byGPS signal. For initial setup,a GPS satellite signal
search is required. This takes about 2 minutes.
3. When GPS signal is found, a voice prompt states 'GPS connection has been restored'.
When there is no GPS signal (vehicle is in underground parking), a voice prompts
states 'No GPS signal'.
4. When no GPS signal is detected (e.g. in underground parking), the speed alarm will not
function.
5. On the back of RVS-350, DIP switch 2 and 3 are used to set alarm speed by hand.
When the speed alarm is set with computer software this overrides settings on the physical
device. The parameter can now only be changed with the software.

The RVS-350 power input range is 9V-32V. Itworks with both 12V and 24V power
Driver Fatigue Monitor System has a low power consumption. Using 12V, the average
current is less than 100mA. Using 24V, the average current is about60mA.
8P Cable Alarm Signal Interface
5P cable color Pin number Definition of signal
Red pin-1 Power+，DC12V/DC24V
Black pin-2 Power-，GND
Yellow pin-3 Signal output of "fatigue warning"
When fatigue detector alarming, output low level(0V);
When alarm stopped, output high level(4.2V)
Blue pin-4 Signal output of "no portrait warning"
When portrait not detected, output low level(0V);
When portrait detected, output high level(4.2V)
Green pin-5 Signal input of” pause monitor”
When input High-impedance, detecting and alarming normally;
When input GND, suspending alarming (until the signal resume
high impedance after 30s );
Power Supply
CableConnection：
4P cable color Pin number Definition of signal
Red pin-1 Power+，DC12V/DC24V
White pin-2 Power-，GND
Grey pin-3 RVS-330 Data Receiver (Rxd)
Brown pin-4 RVS-330P Data Transmission (Txd)
Note: The RVS-330 can be connected to a warning light that alerts surrounding drivers to pay attention
when the alarm is activated and a vibration cushion that vibrates whenever the driver fatigue alarm goes off.
It can be connected to both of these accessories simultaneously.
RVS-330

The RVS-350 is an electronic device with a high-speed image processing CPU, it is
designed to use the vehicle power supply. Vehicle power supply is the linear power with
battery. When demonstration and testing, customers should use the DC linear regulated
power supply and power supply should be grounded.
During testing and demonstration, please use the DC Linear Power Supply , and the power
should be grounded. We recommend the adjustable DC linear regulated power supply for
electronic maintenance. This power can guarantee quality of supply. Connect RVS-350 to
cigarette power adapter to the power output cigarette lighter socket.
If you use the power cable to directly connect RVS-350. Attention: Use thepower cable
with a round needle-shaped plug . Donotmisuse the alarm signal outputcable. Wrong
connection will cause damage.
If you use a switching power supply, it will not damage the system, but it may not work properly.
If have this problem, please turn system power and restart.
User Note
Alert Status
Usually people enter the alert status after 1 minute normal driving, but some people who wear
glasses need take at most 5minutes. If you fall asleep after the system enters to the alert
status, the RVS-350 alarm will be triggered. If there are large movements and the driver is
talking before closing their eyes, it only gives them one or two friendly reminding alarm after
your eyes close for 4-7 seconds. If the driver didn’t have big movement and didn’t speak, eyes open
gets smaller and smaller, or eyes closed, or watching the front but in thinking, it will make sharp
alarming after 2seconds.
After the product is connected to power supply for 2 seconds, the green light will flash for 1 second.
At night the infra-red light turns red. In the first 30 seconds, the system detect the driver’s position
and analyzes driver’s condition, it does not make warnings during this period. Only after the
driver has been keeping driving for more than 30 seconds, the system will enter into alert status.
However, once power is on, the system will detect if the driver’s eyes are open or not. If the green
light is on, it means the driver’s eyes are open. If the green light is off, it means the driver closes
eyes or driver is not in the detecting range of the camera. For first time installation, you can
adjust the camera’s position based on the green light’sdisplay.
The RVS-350 can detect and analyze the driver’s fatigue condition prior to falling into sleep.
Normally, driver's eyes get less and less sensitive to the light before falling into sleepy condition.
At this time, the RVS-350 is detectsand analyzes the driver’s retina condition, making sharp
alarmsto wake the driver up prior to them falling asleep. The driver should stop driving
immediately and have a rest after being alerted by the RVS-350.
People Image Identification
For certain populations the system needs 1-60 seconds to detect, if the green light turns on when the
eyes open and the green light turns off when the eyes are closed, it is working properly.
Note: Donottouch the power+ tothe input and output signal lines. This will damage the
system.
"Fatigue Warning" Signal Chart:
The ON(GND) signals detectsdriver fatigue.
4.2V
0V(GND)
Normal Alarm(ON) Alarm release(Normal)

Glasses, Sunglasses, Contact Lens
The system will work for drivers who wear glasses, sunglasses, or contact lens.If they wear the
glasses with a thick frame, it is better to place the glasses a little bit more up on the nose, or install
the host lower (the position is lower if installing inside the dash board).
People who wear sunglasses should install the host closer, we suggest wearing large sunglasses.
The system works normally when driver is using contact lens.
Alarm Troubleshooting
1. Inappropriate installation location
A suitable location of the device should be this: When the driver looking ahead, the green
light will light up or flash (if green light always keeps on, it is the very good position); when the
driver closestheir eyes, the green light turns off.
2. Unfinished facerecognition
After detecting the driver, The RVS-350 will identify the face characteristics first, it
doesn’t start monitoring the fatigue until finishing the face identification, and the
identification time is different for different drivers. Usually the device can enter the alert status
after 1 minute’s normal driving, it takes around 5 minutes at most to enter into alert status for some
people wearing glasses.
3. Previous alarm interval is too short
During normal driving, the driver will be alerted up by the alarm. The RVS-350 only alarms again
after 10 seconds of the first alarm. So in the test, The RVS-350 will not alarm if you simulate the
fatigue state too quick after the previous alarm.
4. Large movements
The RVS-350 is very intelligent. If the driver is detected a substantial movement in the
early warning, it shows that there is no sign of driver’s fatigue. In that case, the RVS-350
only issuesthe friendly reminder after detecting the driver’s fatigue state for 4-7 seconds.
5. Unstable power
If you use another power supply for testing, the power supplies may be insufficient, or the
interference is too large. This may cause the RVS-350 not to work properly. Please use a good
quality power supply or the vehicle power supply for testing.

Rear View Safety , INC. | 1797 Atlantic Avenue | Brooklyn NY 11233
800.764.1028 | [email protected] | www.RearViewSafety.com