factory customized Maintenance Fleet Manager - adas camera Fatigue driving camera DB-A501 – Dragon Bridge

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

1. Installation requirements

Fix DB-A501 by screws to lean to the right side (within a range of 30 degrees) in front of the driver and tilt up at an angle of 5~30 degrees; connect the lead terminal with the power supply wiring harness; and connect GPS antenna as well as 4G antenna.

DB-A501 can be adapted to a distance range of 60 cm~120 cm, and it is advised that DB-A501 should be installed at about 80 cm.

Figure 2. Top view of Installation Figure 3. Side view of Installation

2. Product list

Table 3

Product List

Bracket 1 Host Round head screw Bracket 2

Figure 4. A schematic diagram of parts

3. Calibration

Adjust the angle of DB-A501 up and down to ensure that the driver’s face is in the center of the screen of an external display.

4. Work status

After the vehicle starts, DB-A501 will start immediately; after about 8 seconds, it will make a sound indicative of start-up completion, indicating that the product is ready for work.

After the vehicle’s speed reaches the set speed value, the product will enter the monitoring state, monitor the driver in real time, and issue fatigue warning; according to factory default settings, when the speed exceeds 15km/h, the device will start a state detection function (except for the type of posture warning) and when the speed exceeds 30km/h or more, posture calibration will be performed.

After the posture calibration is completed, all warnings can be triggered. Notes: the starting speed of fatigue warning function for DB-A501 is 15km/h.

5. Parameters Configuration for SD (TF) card

Through the system upgrade, you can adjust parameters of the device, such as volume, sensitivity, time zone.

III. Electrical Properties

Table 3

DB-A501 Electrical Properties

IV. 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:

The driver’s face is

Referring to the Instruction Book,

out of the visible

adjust the position or angle of the

scope of the camera

device placement.

or beyond the effective distance.

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.

V. Applicable Vehicles

Passenger and cargo transport vehicles, dangerous goods transport vehicles, mining vehicles, taxis and school buses and other vehicles.

VI. Friendly Reminder

1.Will you drive when you are in fatigue?

Fatigue driving is different from drunk driving, and people always choose to or have to drive even though they feel tired because they claim they are alert to fatigue or they are in a hurry sometimes. Therefore, there is inevitably the following problems:

The first problem: people will still choose to drive even though they are tired because they have to do so;

The second problem: the drivers think that they can control the fatigue. When having a sense of fatigue, a driver may argue that he can eliminate it through conventional methods such as, having a cup of coffee and other refreshing drinks, smoking, turning music volume up, opening windows, scratching his head, twisting his neck.

However, we should accept the fact that fatigue cannot be eliminated by means of relying on subjective thoughts of the driver with the aid of applying the above-mentioned methods to avoid falling asleep. Those irritating behaviors, such as smoking, increasing the volume of the radio, drinking coffee, opening windows cannot actually prevent “drowsiness–induced substance” from influencing the brain, and conversely, they cause paralysis to the driver.

Do you know? Drinking excessive coffee can cause insomnia, headaches, allergies and anxiety.

Do you know? It takes more than 10 minutes for caffeine to get into your blood system to finally generate a stimulus, so a cup of coffee would not have such a quick play as required but you have already fallen asleep. Also, if you have become accustomed to effects of caffeine, stimulating effects will be weaker.

Do you know? Opening the window and increasing the volume of the radio can indeed increase your alertness in a short time, but it will not last long.

2.DB-A501 Benefits

DB-A501 employs the method of combining the image recognition with the driving behavior analysis to give a well-intentioned warning when you are tired and inattentive. Once serious

fatigue occurs, the system will give you a wake-up call in time, which is a critical moment between life and death.

What a critical moment between life and death, seizing this moment, the wife can give her rushing husband a reminder;

What a critical moment between life and death,

seizing this moment, the driver will not worry about his safety; What a critical moment between life and death

seizing this moment, the passenger will not worry about his safety. Hindsight is not our aim, what is important is to reduce tragedy.

VII. Security Warning

Before using the product, please be sure to carefully read the following precautions to ensure safety. Warning 1: In order to put the fatigue warning system to be in good account, users of this product are responsible for the proper installation and the safe utilization of the system so as to ensure this product will not interfere with the normal operation of the vehicle and other vehicle safety devices, for example, this product shall not obstruct the driver’s driving vision, which may cause accidents and injury.

Do not install this product in a position where the driver’s driving vision is obstructed.

Do not install this product on top of airbag dashboard or at the area where the airbag deploys.

Do not install this product in the position where passengers are prone to bumping into the product.

Warning 2: This fatigue warning system is just an ancillary product for safety aiming to reduce probability of accidents caused by driver fatigue, thereby reducing losses caused by driver fatigue. Drivers themselves are still responsible for the normal operation of the vehicle, so they shall not rely on this product to keep driving in the case of severe fatigue.

VIII. User Notice

The product is powered on; and after the vehicle travel speed reaches the speed value (default 15Km/h) for triggering the fatigue warning function, the product will enter the normal working condition. 

The product can effectively reduce the probability of accidents caused by driver fatigue, but cannot eliminate the symptoms of driver fatigue, so the driver needs to consciously have a rest in order to completely eliminate fatigue symptoms.

The user needs to cooperate and know that our product needs to access the signal, such as power supply, GPS antenna, and 4G antenna.