1. depth camera guidance: the depth camera is used for real-time environmental perception and positioning, and guides the robot to navigate and operate by identifying information such as human body, objects and environmental structure.

2. Three-dimensional point cloud guidance: Using laser scanners and other equipment to obtain three-dimensional point cloud data of the environment, and extract and identify features to realize the navigation and operation guidance of the robot.

3. Augmented reality guidance: Based on augmented reality technology, virtual information is superimposed in the real world, and the robot is guided to navigate and operate under the guidance of virtual information.

4. Visual marker guidance: placing visual markers in the environment, identifying the markers through the robot's visual system and obtaining their position and direction information, thus guiding the robot to navigate and operate.

5.SLAM Guidance: With SLAM technology, the robot can establish an environment map through its own sensors and algorithms, and locate its position in real time, thus guiding the robot to navigate and operate.

These solutions can be used alone or in combination to meet the needs of robot's three-dimensional visual guidance in different scenes.