Yesterday, Xiaobian has brought you the relevant modular reference design, image sensing and image processing, and forward-reverse camera specific solutions introduced by ON Semiconductor on the 360° surround vision system. Today, we will bring you a series of more mature panoramic car safety systems developed by well-known domestic and foreign automobile manufacturers.
Noun analysis: 360 degree surround system
The 360-degree viewing system, that is, the camera group system, collects the images around the vehicle and processes them through a series of intelligent processing algorithms of the image processing unit to form a panoramic top view around the vehicle and display it on the screen in real time. The location of the vehicle and the surrounding environment are displayed, which greatly expands the driver's ability to perceive the surroundings and the environment, and effectively reduces the occurrence of accidents such as scraping and even crushing.
Camera installation diagram
The 360-degree surround system consists of four cameras, front, rear, left and right, and a central controller.
360 degree viewing system composition diagram
Nissan's first panoramic driving safety system "Monitoring System AVM"In December 2007, Nissan released the world's first AVM landscape surveillance system. With a high-resolution super wide-angle camera and ranging radar installed around the body, combined with a central console display, the surround system can display the aerial view of the vehicle in real time. The driver provides complete multi-directional driving angle assistance. It is understood that Nissan "Elgrand" MPV took the lead in using this AVM system.
Nissan AVM landscape monitoring system body camera group and ranging radar
Nissan AVM landscape monitoring system works:
The AVM system consists of four super wide-angle cameras, a rangefinder radar, and an in-vehicle center console installed in front of the car, at the rear of the car, and on the left and right exterior mirrors. The ultra-wide-angle camera in 4 directions captures the real-time images of the front, rear, left and right of the car. Through the processing of the center console, the video images in 4 directions are combined into a complete 360° panoramic bird's eye view and displayed on the center console screen. The screen of the AVM system is divided into two screens.
(above) Reversing into the parking space screen (below) side parking screen
As shown in the above figure: When the vehicle is reversing into the parking space, the left side shows a panoramic bird's eye view around the vehicle body, and the right side can choose to display the video image in front of or behind the vehicle, and the auxiliary parking line will be given on the screen; When parking, the driver can switch the angle of view, display the left front view of the vehicle on the left side of the screen (Japan is driving on the left side) to grasp the position of the vehicle in front of the parking space, and the rear view of the vehicle on the right side of the screen. At the same time, the distance between the vehicle and the obstacle detected by the AVM system at the four corners of the vehicle's rangefinder radar can also be displayed on the screen, and an alarm sounds to alert the driver.
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