At present, robot navigation in the market mainly consists of the following planning techniques: random (collision), local planning and global planning.

  Random collision type, as the name implies, through collision detection to trigger the steering to complete the movement, no path planning ability, low cleaning coverage, poor practicability, mainly 1,000 yuan below the level of sweeping robot. As an entry-level experience of the sweeping robot, it can be understood as a navigation scheme for the wild era of the sweeping robot industry. At present, because the function is simple and the price is low, there is a certain sales space in the gift market.

  Local planning (inertial navigation)

  It is mainly in the gyroscope way to measure its own acceleration and angular velocity through the accelerometer and components, and realize navigation through algorithm calculation. This way can realize regular cleaning. There is no global map, but only displacement map. It is almost impossible to realize the function of filling and scanning. Position detection can be problematic after being manually moved.

  Global programming

  The birth of global programming technology detonates the explosion of sweeping robot industry, And the main implementation method is based on the Simultaneous Localization And Mapping (Simultaneous Localization And Mapping) technology "real-time Localization And map construction". In view of the errors of local poor planning students, vision/lidar is used to make up the errors, and the global map is formed. It is the best way among the current planning methods.

  At present, high-end machines mainly adopt global planning type, but because of its high cost, so the price is relatively high, ordinary families are difficult to choose to buy.