The navigation principle of Laser Navigation Robot Vacuum Cleaner Draw 2D Maps

2021/07/17

Laser Navigation Robot Vacuum Cleaner Draw 2D Maps is your good choice.The basic principle of laser navigation technology that started earlier is relatively simple. One is laser ranging. Laser ranging is to emit a beam of light toward a specific direction, and the light bounces back when encountering an object to be captured by the receiver. The speed of light is known, and the transit time is known. Then you can calculate the distance between yourself and the object. The difference is that laser ranging only needs to be launched once and received once, while laser navigation technology is one dimension higher. By measuring more points in various directions, you can build two-dimensional maps or three-dimensional modeling, and at the same time determine the sweeping robot's own Location; the second is to use the distance information between two points for triangulation.
Through the above explanation, we know that the hardware required to realize laser navigation technology is a laser transceiver that can measure distances to multiple points and multiple directions at the same time, which is generally called a lidar ranging sensor. Because its principle is relatively simple, it has been relatively mature as early as 2005, and it is currently the most stable and mainstream positioning and navigation method. Many products on the market now use LDS laser navigation algorithms, such as Roborock T6 and Mijia sweeping and dragging integrated robots. These products are equipped with LDS lidar ranging sensors, and the other is to process distance information and modeling. The processing unit.
Because the principle is simpler, the amount of calculation involved does not make the processing unit difficult to load in a short time, and the data obtained in the same environment is more accurate, so sweeping robots using laser navigation technology can often draw two-dimensional maps or three-dimensional maps more accurately. The model, together with the "cliff sensor", can also cope with various terrains, preventing the sweeping robot from falling from higher places such as steps. Of course, the hardware cost of laser navigation technology with better performance is also higher, and the repair cost is also higher when the lidar ranging sensor is damaged.Laser Navigation Robot Vacuum Cleaner Draw 2D Maps is your good choice.