What Is a Camera Robot?

Robot vision refers to not only taking visual information as input, but also processing this information, and then extracting useful information to provide to the robot.

Since the 1960s, people have begun to study machine vision systems. In the beginning, the vision system could only recognize objects like blocks on a plane. By the 1970s, it was possible to recognize certain processed parts, as well as indoor tables, telephones and other items. Although the research work at that time made rapid progress, it could not be used in practice. This is because the visual system has a huge amount of information, and the hardware system that processes this information is huge and takes a long time.

With the development of large-scale integration technology, the size of computer memory has continued to shrink, prices have fallen sharply, speed has continued to increase, and vision systems have also become practical. After entering the 1980s, due to the rapid development of microcomputers, practical vision systems have entered various fields, among which the number of vision systems for robots is large. ^[2]

In the objective world

1. TV camera

Group camera is a typical visual information input device. It has the following configurations.

A camera. Including: ordinary TV cameras, HDTV cameras, high-speed cameras, etc., or black and white, color, infrared cameras.

Used as a multi-vision camera. Including: Stereo vision requires two cameras, trinocular vision requires three cameras, etc.

Distribute the cameras. Since cameras have become smaller and cheaper, they have allowed multiple cameras to be placed around the environment to achieve the best combination of cameras. Camera parameters, such as focal length, aperture, zoom, camera orientation (azimuth, elevation), etc., can be controlled by a computer program.

2. Distance measuring device

The laser and infrared are emitted, and when they hit the object, they will produce

For a given size,

The application fields of robot vision are as follows:

Provide visual feedback for robot motion control . Its function is to identify the workpiece, determine the position and orientation of the workpiece, and provide visual feedback for adaptive control of the robot's motion trajectory. Operations that require the application of robot vision include: selecting a workpiece from a conveyor or a feed box, managing and controlling the workpiece or tool during manufacturing, for example, moving a welding gun along a predetermined path of SHx, i-edge or its features, and having perception Feedback of assembly operations.

Visual navigation of mobile robots . At this time, the function of robot vision is to use visual information to track the path, detect obstacles, and identify road signs or environments to determine the position of the robot.

Instead of or assisting manual visual inspection required for quality control and safety inspection . ^[4]