Sweeping robot have fully entered our lives, work and economy, especially the developed countries in the West, are committed to the research and development and widespread use of intelligent sweeping robots. Although domestic and foreign research and development in this field have achieved some results, there are still many key technical problems to be solved or improved.
The sweeping robot brushless DC motor adopts a transmission structure with a geared motor, and the additional driver enables the intelligent sweeping robot to be intelligently controlled. The brushless gear motor can adjust the speed of the gear transmission through the shift position, thereby achieving intelligent control.
Roomba is the earliest popular sweeping robot. Its path planning is a random collision mode. It is based on infrared sensors and high-precision program algorithms. Although the algorithm is accurate enough, it bumps into and out of the room, which is not very efficient. It also looks dumb.
Working principle of sweeping robotThe sweeping robot is actually a smart vacuum cleaner. It is a small car that walks on the ground automatically, cleaning (vacuuming) while walking. Generally, there is a universal wheel at the front of the bottom, and an independently driven walking wheel on the left and right, with a fan (vacuum cleaner), powered by a rechargeable battery, and driven by a DC motor. There are also mops and some with water tanks. The wet mop without the water tank can be used for about 30 square meters at a time (without changing), and the water with the water tank is about 30 square meters, which is quite, in fact, it is often towed, and the mop is not changed in the middle, not to mention, the water tank There is also another small problem-once the machine is stuck and water is leaking, the wooden floor is troublesome, so I personally think that it is not a problem without the water tank. It should sweep all the places that should be swept, and at the same time it should be able to sweep clean, so suction and path planning are very important. Of course, if you bring a mop, you can appropriately reduce the suction requirements.
Fourth, the dirty places should be cleaned multiple times;
Detailed explanation of the working principle of the sweeping robot
In theory, there is no problem, using a composite sensor, but it requires additional cost and installation space. At present, in order to achieve navigation and planning, there are mainly: laser ranging, camera processing, Polaris positioning, and shore patrol navigation. However, even if laser ranging navigation is used, algorithm support is still needed to achieve planning. The simple bow-shaped sweeping robot on the market is not considered a real plan, because it just walks forward, and when it encounters obstacles, it will turn 90 degrees and walk a small distance (generally no more than the width of the machine itself), and then walk 90 degrees in the same direction. , Until it hits an obstacle, and then walk a small distance in the reverse rotation 90 degrees, and then continue to rotate 90 degrees and then walk until it hits the obstacle and keep cycling like this, there will be many missed scans. For example, the DR95 used by American Neato, domestic Xiaomi and domestic Cobos is laser navigation, South Korea's Samsung uses camera and image processing, and domestic Ai Yijia uses its own invention patent technology shore navigation navigation.But a pure gyroscope can achieve orientation, but cannot achieve navigation by itself unless it is equipped with other navigation methods or algorithms. There are many articles and patents on the optimization and algorithms (strategies) of the cleaning path. Please search for them for reference. On this basis, you can also improve, perfect and innovate. In addition, the random type cannot guarantee full coverage, it is not easy to get out of trouble, and the repetition rate is high, so it is not recommended.
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