Recently, the company has been rooted in the application of drones in agriculture, and they have released the XCope XOCope UAV Vision System. This system combines the binocular obstacle avoidance and terrain vision module to give the plant protection drone the ability to perceive the environment, further enhancing its operational efficiency and safety.
Technical Parameters:
Binocular obstacle avoidance, effective recognition distance of 30 meters;
Terrain vision module, which can obtain location information and flight information 24 hours a day without GPS;
Wind curtain blocking technology, active dust removal, designed for plant protection drones, adapt to extremely complex environments;
Active near-infrared illumination technology with night vision.
One of the interesting things we found was that it was able to avoid obstacles at night. Why is this interesting? Because if you have Dajiang, its binocular obstacle avoidance may be completely "smashed" at night, and not only at night, it is said that the illumination is less than 300 lux will be closed.
So of course, Dajiang does not recommend that you play drones at night to do some "hunting things", and you can only rely on your own technology. But considering that the Inspire 2 can already customize the 4G communication function and realize the black technology such as remote control of the aircraft, if we realize the obstacle avoidance at night, our hackers and geeks have fun things to do.
So here we will first talk about "night obstacle avoidance".
Extreme Flying & Active Near Infrared Irradiation Technology?
Extreme flying to avoid obstacles at night is because most of their plant protection operations are carried out at night. In fact, the principle of "obstacle avoidance at night" is not complicated.
First, the principle of obstacle avoidance is to avoid obstacles in the forward direction. It uses two "eyes" of the imaging device to acquire two images of the object to be measured, and obtains the three-dimensional shape of the object by calculating the positional deviation between the corresponding points of the image. Information, including the distance between the camera and the object, and the distance between the objects. It is based on the parallax principle and is an important form of computer vision, which is similar to the principle that the human eye perceives three-dimensional information of objects. Refer to the ugly picture below.
The obstacle avoidance at night is the use of this active near-infrared illumination technology. Simply put, a special "flashlight" is added and the "eyes" are modified. At night, this "eye" is almost invisible (like the existing products of Dajiang), and the binoculars used in the ultra-flying are composed of two black and white lenses, which can be imaged from the 380-1080nm band, which means not only " Seeing "visible light, you can also see infrared rays that are invisible to the human eye."
(The middle strip is mounted for transmission and the sides are for receiving)
The unmanned person actively emits near-infrared light. The near-infrared light is an electromagnetic wave between visible light and mid-infrared light. Although it is invisible to the human eye, it can be used as a light source at night, and each lens of the dual purpose can receive the environment. The infrared feedback can be "perceived" to the environment and obstacles after binocular calculation (same as daytime calculations). Moreover, the obstacle avoidance distance is unchanged from the daytime, and is 30 meters (angle: horizontal FOV 65°).
In fact, this principle was not created by the ultra-flying. It was used very early in the military. During the Second World War in the United States and Germany, the first generation of active infrared detection devices was used on the battlefield, and the light source equipment provided by itself took the initiative to generate near The infrared radiation illuminates the target area, and then receives the infrared signal returned by the target, and converts it into a visible image for observation and analysis. For example, the vehicle-mounted active infrared night vision device developed in Germany can be used for concealed travel under no-light conditions at night, and by this means avoiding the surveillance of the Allies and secretly transporting the V-2 missile to the front line.
And here, at present, all civilian drones can't avoid obstacles at night or when the light is not good? Actually, we can look at the obstacle-free drones that were originally "seeing the light to die" and whether they can survive at night.
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