The self-driving car that Google has been developing has already begun to let people appreciate the increasing influence of electronic information technology on car driving. With the development and use of advanced technology in the car, it not only takes you to experience driving pleasure, but also enables you to experience the feeling of driving an informational chariot through various driving assistance and active safety systems.
The car also has a "fire control system"
This is the cab of the T-90 tank. Inside the head is the famous Putin.
Many people know that the tank is known as the "King of the Land War." Do not imagine it as cumbersome. Tanks with a capacity of forty to fifty tons are not only flexible, but they can also help understand the signs of a few miles away. The core components of the “fire control system†on the tank are various sensors, including laser rangefinders, night vision sensors, etc. The targets they capture react to the weapon system of the tank through the judgment and command of the computer.
Pedestrian Detection with Volvo S60 with full automatic braking
Now, similar models have been applied to civilian cars. The Volvo S60, for example, is equipped with a pedestrian safety system with full automatic braking. It includes a radar unit embedded in the car's front grille, a camera mounted in front of the car's rearview mirror, and a central control unit. The mission of the radar is to detect the object in front of the car and determine the distance between the object and the car. The camera is used to distinguish the type of object in front of the car. The working mode of this pedestrian detection system is very similar to the fire control system on the tank. It not only detects existing objects in front of the vehicle, but also detects pedestrian movement patterns and estimates whether the pedestrian is likely to enter the car. In the area, if there is a possibility of collision, the system will sound an alarm to the driver, accompanied by flashing of a red warning light near the front windshield in the car, and the car's brakes are also turned on in advance. Once the driver does not respond to the warning, the car will automatically brake with full braking force. Compared with the tank's fire control system, the various sensors in your car are not inferior to the precision, but they are not used to capture the "target", but to ensure the safety of driving.
Automatic driving is not realized, driving assistance is safer
Most people may not even think about flying a plane. If you have played a flight simulation game, you will definitely feel that it is very easy to fly: If you are familiar with the feeling of motion in three-dimensional space, most of the time you give it to “Autopilot†(Autopilot) is OK, it can automatically maintain the course of the aircraft. And height. It should be noted that the autopilot used by the aircraft was invented as early as 1912 when the aircraft was just born. Want to achieve automatic driving in the car, in addition to the road on a variety of unexpected vehicles and pedestrians make the computer difficult to deal with, just a variety of land on the road system, lights, road signs, all need a strong sensor to make a judgment . Therefore, until now, self-driving cars have not been allowed to hit the road.
Automatically piloted aircraft is very reliable
However, although automotive autopilot has not yet been implemented, many cars have been equipped with "radar" and "brain" to assist drivers in driving. The simplest, such as reversing radar, helps you to detect the distance between the parking space and the obstacle while reversing. The cruise control system can liberate your right foot and allow the speed to be controlled within a certain range. There are still more advanced: such as the lane departure warning system (LDW) equipped on the Volvo S60 sedan and the adaptive cruise control system (ACC) with automatic queuing. The LDW system can monitor the position of the vehicle on the road in real time through a digital camera. When the vehicle inadvertently (without the use of a turn signal) crosses the lane marking line, the system will immediately issue an audio alarm; the ACC is even more magical.†Cruise control, which helps the driver maintain a safe distance from the vehicle in front. On highways and unimpeded long trunk roads, the driver only needs to select the desired speed and the minimum time interval from the preceding vehicle. When the current vehicle speed is less than the preset speed, the system can automatically reduce the speed of traffic. The road to the side will be clear again and the car will return to its default speed. If there are other vehicles crossing the queue between the two vehicles, the ACC system will adjust the speed to maintain the time interval between the two previously set cars. In other words, with the help of the ACC system, drivers can easily cope with unscrupulous “clamping†behaviors that most novice and female drivers have.
Not long ago, Volvo Car Corporation demonstrated a new type of traffic jam-assisted driving system, which makes it possible to further automate the car. The new system allows the car to automatically follow the vehicle ahead when the traffic speed is less than 50 km/h. The driver can start the traffic jam assisted driving function with a simple key operation. After the system is started, the engine, brake and steering system react automatically. At the same time, the driver can always maintain control of driving and resume artificial driving at any time. Although this technology is not yet in production, it may not be a dream in the near future to drive a vehicle like an autopilot.
Adaptive cruise control (ACC) with automatic queuing
Returning to the topic, its implementation in the "radar" into the car is far more than this. The application of sensors in civilian vehicles is not only for the driver to understand more information, but it requires careful design, and then through the calculation of the main control system, so that a variety of driving assistance systems and various safety devices to send out reminders Help drivers to judge. Before the realization of automatic driving, in the face of the complex situation on the road, the final decision to make a decision is to sit in the driver's position. The steering wheel is in your hands, the throttle brake pedal is on your feet, careful driving is king!
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