2017 Good Quality State Fleet Vehicles - adas image processing Fatigue driving camera DB-A501 – Dragon Bridge

DB-A501 

Driver State Monitor System

I. Product Synopsis

1. Value of Fatigue Warning

Fatigue has long been an inevitable problem that is controlled to an extent for drivers, for example, when driving two hours at a speed of 100km/h, the driver has to struggle to stay awake on account of his lower levels physiological functions followed by inattention. In general, accident rates are extremely high when the driver drives more than 6 hours a day or is lack of proper rest, for example, only having a rest of less than four or five hours last night. In addition, with the popularity of smart phones, more and more drivers are used to playing his cellphone while driving, it also will cause a popularity of accidents.

A set of terrible statistics has already been reported, indicating that 72% of all accidents occur due to drivers themselves and 25~30% thereof are caused by fatigue drive; that 40% of all serious and fatal accidents are fatigue related; that 70% of all drivers will fall asleep at the wheel on the highway and specially happens to those who likes playing their cellphones while driving.

Therefore, it is a great value to eliminate fatigue at driving for sake of the drivers, families, companies, as well as the society

2. Host introduction

Power supply and signal line interface

It works when power connectors are connected to corresponding power interfaces on the DB-A501 device; the signal line includes video cable, communication line, etc.

SD card slot

SIM card slot

GPS&4G antenna terminal

Bracket

Figure 1. Schematic Diagram of Appearance of DB-A501 Active Defense System 

3. Product specifications

Table 1

DB-A501 product specifications

instruction Book Of DB-A501

4 Function Instruction

All Kinds of Warning

The default starting speed is 15km/h for all below kinds of warning (except for the speeding warning)

Table 2

Ⅱ.Electrical Properties 

Table 3 

DB-A501 Electrical Properties

Ⅲ.Failures and Solutions thereof

If you experience the following problems when using the product, please resolve the failures with the aid of the following countermeasures.

The general problems that may have an impact on this product are as follows:

Table 4:

Failures:

No warning sounds when eyes are closed for a long time.

The device cannot boot up

The fatigue warning is not  sensitive.

No warning is triggered when the driver looks around.

The device is not on the line.

Possible Causes:

The driver’s face is out of the visible scope of the camera or beyond the effective distance.

The vehicle is in a stopped state.

GPS satellite search  fails.

The ACC and power supply are not well connected.

The black Plexiglas in front of this product is too dirty.

The installation distance is too close.

Calibration is not completed.

The SIM card is not inserted, or in arrears state.

Solutions:

Referring to the Instruction Book, adjust the position or angle of the device placement.

The fatigue warning function will be activated only when the vehicle’s speed exceeds the set speed value.

Make sure that the GPS antenna is in good contact and that the top of the antenna or the location of the vehicle is not covered.

Make sure that the power supply wiring harness is reliably connected.

Clean this brown and black Plexiglas.

Install the product at an appropriate distance.

Maintain a correct posture for 10s in test mode and when hearing a beep-beep tone, you can test the posture warning.

Check the SIM card, start the device to hear a tone indicative of the successful network connection, when the device can be on the line.

1. Precautions:

Clean the black Plexiglas in front of this product for sake of the video capture and the product performance;

Make sure that the product is located at appropriate angle and is fixed firmly for the sake of the product performance.

Ⅳ.User Notice