What is ADAS or DMS? 2021-09-07 20:32:32

What is ADAS?

 

ADAS means Advanced Driver Assistance Systems which is using cameras to detect obstacles, traffic signs, lane divisions, pedestrians, and other vehicles. 

ADAS system in your car not only help to keep you and your passengers safe, but also other drivers and pedestrians.


advanced driver assistant system ADAS.jpg


Common ADAS applications includes the following aspects:

 

1. Forward Collision Warning (FCW)

The system checks the distance between the vehicle in front real-time, and it calculates the potential collision time based on two vehicles relative speeds. The alarm will be triggered when the potential collision time is less than the threshold value.

 

2. Lane Departure Warning (LDW)

The real-time system detects the lanes to the right and left. The alarm will be triggered when the system detects an unconscious lane deviation based on right and left turn signals.


3. Headway Monitoring Warning (HMW)

When detect ahead vehicle too close, it will warning the driver to reduce the vehicle speed or stop.


4. Pedestrian Collision Detection (PCD)

The system will notify the driver of a pedestrian/ cyclist/ motorcycle driver in the danger zone, and alert drivers of an imminent collision with a pedestrian, cyclist or motorcycle driver.


 

These lifesaving systems are key to ensuring the success of ADAS applications, incorporating the latest interface standards and running multiple vision-based algorithms to support real-time multimedia, vision co-processing, and sensor fusion subsystems.


What is DMS?

 

DMS means driver monitoring system, and DMS-related warnings focus on the drivers’ behaviors while driving.

With the assistance of a driver-facing camera, this technology can watch for various signs of distraction or inattention, such as fatigue, eating, drinking, smoking, yawning, or using a cellphone, etc.

 

driver monitoring system DMS.jpg

 

The lists below include some of the most common alerts in DMS system.

 

Closed-eyes detection

The alarm will be triggered when the system detects the driver has closed his eyes over the threshold time length.

 

Yawning detection

The alarm will be triggered when the system detects the driver has yawned over the threshold time length.

 

These two alerts can be summarized as fatigue driving warning.

 

Smoking detection

The alarm will be triggered when the system detects the driver is smoking.

 

Calling detection

The alarm will be triggered when the system detects the driver holds a cell phone next to his/her ear while driving.

 

Water drinking detection

The alarm will be triggered when the system detects the driver is drinking water. The system can detect various containers such as cups, disposable cups, thermal cups, mineral water bottles, and more.

 

Distraction detection

When the vehicle speed is over 10km/h, the system will use driver’s facial features to identify the face orientation. The alarm will be triggered when the system detects the driver has a long-term, large-angle deviation from a normal face orientation.

 

These four alerts can be summarized as driving inattention warning.

 

What’s the connection and difference of ADAS and DMS?

 

ADAS mainly collects the data of the internal and external environment of the vehicle through optical imaging equipment, on-board radar system, etc., to identify, detect and track static and dynamic objects, process them through excellent algorithms, and give timely warnings, so as to allow drivers be aware of possible situations in the shortest time and take corresponding measures to improve driving safety.

 

DMS is mainly using the optical image and other equipment installed on the car to analyze the status of the driver during the driving process, and trigger the alarm to remind and warn the driver when they are not concentrate on driving. 

 

Although DMS alerts differ from ADAS warnings, the two systems still work together to improve fleet safety. For example, a distracted driver might start veering off course and cross over the lane markings on the highway. In this instance, the individual may receive both a DMS notification to pay more attention as well as an ADAS alert to correct their error.

 

 

Why we need ADAS and DMS system?

 

ADAS and DMS can complete the comprehensive monitoring of roads, vehicles, and drivers, better play the advantages of active safety, and give early warning before danger occurs, greatly avoiding accidents.

 

If ADAS and DMS system are built in a MDVR that can support 4G function, fleet management will be easier. If you want to monitor hundreds or thousands vehicles at the same time, you can choose our AI MDVR Series.


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