Highway Safety Group EA401 Manual de usuario
Version 11.9.23
Eye Alert System
EA401
USER MANUAL
Highway Safety Group Page 2Version 11.9.23
I. Product introduction
The EA401 driver fatigue alarm system is the most advanced non-
contact method to capture infrared images of people’s eyes and the
PERCLOS algorithms alerts the driver in time to protect your life and
property.
EA401 is small and intelligent, it does not block your vision, the base
rotates as needed, the installation is very easy, and it can be installed
right on the dashboard. The EA401 has a highly integrated infrared
camera, a computer, image processing unit and alarm. The EA-401
technology is protected by over ten patents.
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II. Alarm theory
A driver may not be aware that they are in danger due to fatigue. A
driver might feel they must continue driving. Our driver fatigue alarm
system reminds the driver that he/she is in a dangerous state. The
EA401 uses a PERCLOS algorithm to analyze the driver’s fatigue level.
The state of the driver’s eyes is constantly analyzed. The human retina
reflects infra-red light in a manner that can be used to determine the
eye’s condition. This varies just prior to falling asleep. The EA401
knows you are falling asleep before you close your eyes.
If the EA401 determines the driver is in a dangerous state a sharp
voice will alert the driver.
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III. Features
Works around the clock, both in the dark or the sun.
Works with sunglasses or prescription glasses.
Leading face recognition technology, patented PERCLOS
algorithms to warn the driver.
Patented mesh membrane pupil detection technology detects
open but sleepy eyes.
In addition to fatigue driving, if the driver does not focus on
driving the system will respond.
Intelligent high-speed recognition, the system can identify
when you are in an urban areas or on the expressway, the
system will automatically raise the alarm sensitivity on
expressway.
Compact, easy to install, will not affect the driver's field of
view.
Automatic sensitivity control, when the driver barely moves,
the system will automatically raise the sensitivity. If he often
turns his head, the alarm sensitivity will be automatically
lowered, to reduce false alarms.
Facial feedback indicator, the green light is on when the angle
between lens and human face is proper.
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IV. Functional process
Two seconds after power is turned on, the green light will flash. At
night the red infrared LED can also be seen. After 30 seconds, the
system goes into the active state. The green light means your eyes are
open, the light is off when your eyes closed, or not in view. When it is
first installed, you adjust the position according to green light.
The EA401 will remind the driver before entering a dangerous driving
status. The human retina will become less and less sensitive to the
light outside, the artificial intelligence software inside the system is
detecting the status continuously, and it will give an audible alarm to
remind the driver take a rest.
The EA401 can also detect a distracted driver, such as talking with
back-seat passengers, adjusting dashboard controls, reading, texting,
picking up items on the floor, and give audible reminders to prevent
accidents .
The EA401 response time is 2-3 seconds (2 seconds in highway mode,
3 seconds in urban settings.) Detecting items like looking at the mirror
for too long, the alarm reaction time is 5 to 7 seconds, and then three
short alarms will sound. The retina shrinks smaller and smaller in the
8 seconds before people enter an unconscious state, so the system
can sound the alarm before it is too dangerous.
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V. Components
The device is composed of a main control unit and a power cord
(direct to battery.) A cigarette lighter adapter is also included.
1. Green light, (indicate the eye open or close)
2. Infrared light, (appears red in the dark)
3. Lens
4. Case
5. Speaker
6. 360°turning ball
7. Pedestal
8. Cigarette plug & Battery wiring
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VI. Installation
To install on the dashboard: Clean the mounting surface in your car.
Remove the round magnet from the box, remove the paper protector
and stick to the top surface of the dashboard. The EA401 has a metal
base. Connect the power cord to car cigarette lighter. The EA401 will
begin to work after being powered on, now you can adjust the
position according to the state of the green light facing you. After the
green light is on, move your face around a small amount, if the green
light stays on, that means the installation is good.
The USB type wire can connect directly to a GPS or GPRS system. The
output signal is a 3.3 volt logic signal that asserts when the alarm trips.
The secondary power cord can wire directly to 12V power.
The angle between the driver and the camera should be less than 20
degrees.
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VII. How to adjust the sensitivity and volume
Since people have different expectations for the driver fatigue alarm,
the sensitivity is adjustable, this prevents many false alarms. We have
4 levels of sensitivity for your choosing. The recommended level is
medium sensitivity.
Max sensitivity: levers 1 & 2 both in the down position, testing
level
High sensitivity: lever 1 up, lever 2 down, this has some tolerance
for looking around.
Medium sensitivity: lever 1 down, lever 2 up, typical use.
Low sensitivity: levers 1 & 2 both in the up position, only detects a
trance or sleep.
Each of the 4 level’s minimum alarming time is 2 seconds, the
difference is the reaction time for the eye’s closing or looking around.
Max Audio: levers 3 & 4 both in the down position
Medium Audio: lever 3 up, lever 4 down
Low Audio: lever 3 down, lever 4 up
No Audio: levers 3 & 4 both in the up position
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VIII. Power requirements
Automobile power can range from 8 to 36 Volts, suitable for both
12V and 24V car batteries.
Very low power consumption, average current is less then 100mA
in 12V systems and 60mA in 24V systems, similar with leakage
from the battery.
IX. Attention:
Do not open or repair the device.
Do not operate the system while driving.
Please handle carefully, do not drop.
Do not use cleaning agents to clean the machine.
Keep away from water or moist conditions.
Do not rip, bend or squeezed the wiring.
The EA401 does not recognize a person who has only one eye,
white eyebrows, rough scars or wrinkles around eyebrows.
If the temperature in the car is too high the EA401 may enter a
sleeping mode to avoid damage, the system will re-start when
cool.
If the temperature is well below freezing, the device may not start
immediately; wait for the cabin to warm up.
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X. Product History
Researchers at Carnegie-Mellon University, working with the National
Highway Traffic Safety Administration, developed the PERCLOS
algorithm to measure eye closure rates.
XI. Highway Safety Group special legal statement:
Driver fatigue alarm system is only a warning product, and does not
absolutely guarantee your driving safety. Please be advised that
EA401 is not responsible for any driving accident.
Otros manuales para EA401
1
Otros manuales de Sistema de seguridad de Highway Safety Group
