What are the main functions of the Advanced Driver Assistance System (ADAS)?

What are the main functions of the Advanced Driver Assistance System (ADAS)?

The advanced driving assistance system shall have forward collision alarm, vehicle distance near alarm, lane departure warning, recommended traffic sign recognition, intersection rapid passing alarm, pedestrian collision alarm, and active photographing function. The advanced driver assistance system terminal refers to the installation on the vehicle to meet the working environment requirements, with advanced driver assistance, driver status monitoring and other functions, designed to help the driver of the road transport vehicle as early as possible, more More accurately discover the risk of traffic accidents and prompt the driver to further reduce the traffic accident rate, and support communication and control with other peripheral vehicle electronic devices such as driving recorders, satellite positioning, and vehicle video surveillance. In-vehicle equipment for information required by the Safety Intelligence Early Warning System Platform.

1, forward collision alarm

The front vehicle collision alarm function should have the following functions:

a) Can work normally under the following conditions:

——All kinds of weather conditions including sunny days, rain and snow, haze and so on.

——Day, dusk, night, dawn, etc. at different times and different lighting conditions.

- All grades in the country.

b) It has the function of setting alarm trigger speed threshold, alarm grading speed threshold and safety time threshold:

——When the vehicle speed exceeds the alarm trigger speed threshold and is lower than the alarm grading speed threshold, if the collision time (TTC) is lower than the safety time threshold, the terminal generates an early warning, simultaneously gives a voice alarm prompt or displays an alarm prompt, and saves the warning point. At least the photo of the front area of the car is included, but the alarm information is not sent to the platform.

——When the vehicle speed exceeds the alarm trigger speed threshold and is higher than the alarm grading speed threshold, if the collision time (TTC) is lower than the safety time threshold, the terminal generates an alarm, simultaneously gives a voice alarm prompt or displays an alarm prompt, and saves the alarm point. At least the photos and videos of the front area of the car are included, and the recorded alarm information is sent to the platform. The alarm information should include date, time, location, vehicle speed, alarm category, alarm level, photo and video.

2, the car is too close to the alarm

While the vehicle is in motion, the terminal should be able to monitor the calculated safety distance time with the preceding vehicle in real time, and should have the following functions:

a) It has the function of distinguishing the vehicles in the front and reverse lanes that are traveling in the same lane.

b) In the case of two-way cornering, the terminal shall have the function of distinguishing the vehicles in the forward and reverse lanes of the same direction.

c) It has the function of setting alarm trigger speed threshold, alarm grading speed threshold and safety distance time threshold:

——When the vehicle speed exceeds the alarm trigger speed threshold and is lower than the alarm grading speed threshold, if the distance from the preceding vehicle is lower than the safety distance time threshold, the terminal generates an early warning, simultaneously gives a voice alarm prompt or displays an alarm prompt, and saves the warning. The point contains at least a photo of the front area of the car, but does not send and record alarm information to the platform.

——When the vehicle speed exceeds the alarm trigger speed threshold and is higher than the alarm grading speed threshold, if the distance from the preceding vehicle is lower than the safety distance time threshold, the terminal generates an alarm, simultaneously gives a voice alarm prompt or displays an alarm prompt, and saves the alarm point. At least the photos and videos of the front area of the car are included, and the recorded alarm information is sent to the platform. The alarm information should include date, time, location, vehicle speed, alarm category, alarm level, photo and video.

3, lane departure warning

Meet the following functional requirements:

a) This alarm is automatically turned off when the driver uses the turn signal.

b) can work normally under the following conditions:

——All kinds of weather conditions including sunny days, rain and snow, haze and so on.

——Day, dusk, night, dawn, etc. at different times and different lighting conditions.

- Identify all types of domestic road markings, including

1) yellow and white solid lines;

2) yellow and white dotted lines;

3) double yellow and double white solid line;

4) Double yellow and double white dotted lines;

5) yellow and white virtual solid lines;

c) With alarm trigger speed threshold, alarm grading speed threshold, alarm trigger duration (frequency) threshold

Features:

——When the vehicle speed exceeds the alarm trigger speed threshold and is lower than the alarm grading speed threshold, if the vehicle generates a pressure line or the S-shaped travel exceeds the alarm trigger duration (frequency) threshold, the terminal generates an alarm and simultaneously gives a voice alarm prompt or The alarm prompt is displayed, and the warning point is saved to include at least the photo of the front area of the vehicle, but the alarm information is not sent to the platform.

——When the vehicle speed exceeds the alarm trigger speed threshold and is higher than the alarm grading speed threshold, if the vehicle runs under pressure or the S-shaped travel exceeds the alarm trigger duration (frequency) threshold, the terminal generates an alarm and simultaneously gives a voice alarm prompt or The alarm prompt is displayed. The saved alarm point includes at least the photos and videos of the front area of the vehicle, and uploads and records the alarm information to the platform. The alarm information should include date, time, location, vehicle speed, alarm category, alarm level, photo and video.

4. Traffic sign recognition (recommended function, non-mandatory)

The terminal can be equipped with the function of traffic sign recognition and should meet the following requirements:

a) Can work normally under the following conditions:

——All kinds of weather conditions including sunny days, rain and snow, haze and so on.

——Day, dusk, night, dawn, etc. at different times and different lighting conditions.

- All grades in the country

- Different speed situations.

b) The terminal can have the function of setting the altitude parameter that the vehicle can safely pass locally or remotely.

c) When the traffic sign is identified, the terminal shall immediately save the photo or video containing the front area of the car, but not send the traffic sign recognition event information to the platform.

d) When the height limit or speed limit traffic sign is recognized, if the vehicle body parameter cannot meet the limit value requirement, the driver should immediately give an alarm prompt, and the alarm prompt includes a voice prompt and a display prompt.

e) When an alarm is generated, the terminal shall immediately send the traffic sign recognition event information to the platform, and the information shall include the identified limit value.

6, the intersection quickly passes the alarm (recommended function, non-mandatory)

a) During the running of the vehicle, the terminal can identify the intersection (zebra crossing, traffic lights, guiding signs, etc.), and provide early warning and alarm when the vehicle passes quickly.

b) Ability to work in the following states:

——All kinds of weather conditions including sunny days, rain and snow, haze and so on.

——Day, dusk, night, dawn, etc. at different times and different lighting conditions

- All grades in the country.

c) It has the function of setting the alarm trigger speed threshold.

——When the vehicle speed exceeds the alarm trigger speed threshold, if there is an intersection (more than 50m) in front, the vehicle speed is greater than 50km, the terminal will give a voice alarm prompt or display an alarm prompt, but will not send or record alarm information to the platform.

——When the vehicle speed exceeds the alarm trigger speed threshold, if the speed of the vehicle passing through the intersection is more than 40 kilometers, the terminal will give a voice alarm prompt or display an alarm prompt. The save alarm point includes at least the photo and video of the front area of the vehicle. The platform uploads and sends a record alarm message. The alarm information should include date, time, location, vehicle speed, alarm category, alarm level, photo and video.

7, pedestrian collision alarm (recommended function, non-mandatory requirements)

During the running of the vehicle, the terminal can have the pedestrian collision alarm function, which needs to meet the following requirements:

a) Can work normally under the following conditions:

——All kinds of weather conditions including sunny days, rain and snow, haze and so on.

——Day, dusk, night, dawn, etc. at different times and different lighting conditions.

- All grades in the country.

b) It has the function of monitoring pedestrians in various states. The pedestrian status includes, but is not limited to, walking, running, squatting, parachuting, cycling, and the like.

c) It has the function of monitoring pedestrians in front of the vehicle and on the side of the road. If pedestrians in the middle of the direction of the road are monitored, the monitoring of the object of the alarm object is increased to the width of 2m from the front lane of the vehicle.

d) It has the function of setting alarm trigger speed threshold, alarm grading speed threshold and pedestrian collision alarm time threshold.

——When the vehicle speed exceeds the alarm trigger speed threshold and is lower than the alarm grading speed threshold, if the pedestrian distance time is less than the pedestrian collision alarm time threshold, the terminal generates an alarm, simultaneously performs a voice alarm prompt or displays an alarm prompt, and saves The warning point contains at least the photo of the front area of the car, but does not send and record alarm information to the platform.

——When the vehicle speed exceeds the alarm trigger speed threshold and is higher than the alarm grading speed threshold, if the pedestrian distance time is less than the pedestrian collision alarm time threshold, the terminal generates an alarm, simultaneously performs a voice alarm prompt or displays an alarm prompt, and saves the alarm. The point includes at least photos and videos of the front area of the car, and uploads and records alarm information to the platform. The alarm information should include date, time, location, vehicle speed, alarm category, alarm level, photo and video.

8, take the initiative to take pictures (recommended function, non-mandatory items)

While the vehicle is in motion, the terminal should be able to take photos of the situation in front of the vehicle at regular or fixed distance and upload the photos to the platform. The photo should contain the vehicle's satellite positioning information at the time of shooting.