Mobile robots are a type of robot that can move autonomously and have the following main characteristics:

1. Autonomous movement: Mobile robots are equipped with wheeled or tracked drive systems, which can move autonomously in the working environment without the need to be installed on fixed tracks or positions.

2. Action autonomy: Mobile robots are usually equipped with computer control systems and various sensors, which can autonomously make decisions on action paths and directions based on environmental perception.

3. Flexible tasks: Mobile robots can perform various mobile operation tasks, such as patrol monitoring, logistics transportation, cleaning and salvage, etc. The types of tasks are relatively flexible and varied.

4. Strong environmental adaptability: Mobile robots need to adapt to various complex working environments, such as terrain, construction sites, etc., and have strong environmental adaptability.

5. Possible collaborative work: Multiple mobile robots can work together in a network, such as logistics distribution, assembly and construction, to achieve group collaboration among robots.

6. Communication networking: Mobile robots usually use wireless communication to achieve real-time data exchange and command issuance with the main control system, and some robots can also achieve direct communication with each other.

According to different modes of movement, mobile robots can be divided into:

1. Wheeled mobile robot: Using tires or elastic wheels as the driving device, it has high maneuverability and simple mechanism.

2. Tracked mobile robot: using tracked chains as the driving device, it has strong adaptability and high load capacity.

3. Wheel track combined mobile robot: using both tires and tracks, it has both maneuverability and adaptability.

4. bipedal mobile robot: simulates the bipedal walking style of humans or animals, with strong adaptability and flexibility.

5. Four legged/six legged mobile robots: Four legged or six legged bouncing drive, with strong resistance and load capacity.

Mobile robots have a wide range of application prospects, especially with the development of artificial intelligence and 5G communication technology, the intelligence level and collaborative operation ability of mobile robots will be greatly improved. In the future, it can be expected to achieve more autonomous and efficient operation and work in more complex environments.