[ 1. Robot control system ]
Open and modular control system. Developing towards an open controller based on PC, facilitating standardization and networking; The device integration is improved, the control cabinet is becoming smaller and smaller, and the modular structure is adopted; It greatly improves the reliability, operability and maintainability of the system. The performance of the control system has been further improved. It has developed from the 6-axis robot that used to control the standard to control 21 or even 27 axes, and has realized software servo and full digital control. The human-computer interface is more friendly, and the language and graphic programming interface are under development. The standardization and networking of robot controllers, as well as PC-based networked controllers, have become research hotspots. In addition to further improving the operability of online programming, the practicability of offline programming will become the focus of research, and offline programming in some fields has been realized.
[ 2. Robot sensing technology ]
The role of sensors in robots is becoming increasingly important. In addition to the traditional position, speed, acceleration and other sensors, the assembly and welding robots also use laser sensors, visual sensors and force sensors, and realize automatic seam tracking, automatic positioning of objects on automatic production lines and precision assembly operations, which greatly improves the robot's performance and adaptability to the environment. Remote control robot adopts multi-sensor fusion technology such as vision, sound, force and touch to carry out environment modeling and decision control. In order to further improve the intelligence and adaptability of the robot, the use of multiple sensors is the key to solve the problem. Its research focus is on effective and feasible multisensor fusion algorithms, especially in the case of nonlinear, non-stationary and non-normal distribution. Another problem is the practicability of the sensing system.
[ 3. Robot remote control and monitoring technology ]
When welding or other operations are carried out in some high-risk environments such as nuclear radiation, deep water, toxic and so on, remote control robots are required to work instead of people. The development characteristic of modern remote control robot system is not to pursue full autonomous system, but to focus on human-computer interaction control between operator and robot, that is, remote control plus local autonomous system constitute a complete monitoring and remote control operating system, which makes intelligent robot go out of the laboratory and enter the practical stage. The "Sagna" robot launched by the United States on Mars is the most famous example of the successful application of this system. For the coordinated control between multiple robots and operators, a large range of robot remote control system can be established through the network. In the case of time delay, a pre-display can be established for remote control.
[ 4. Performance price ratio of robot ]
The performance of the robot continues to improve (high speed, high precision, high reliability, easy operation and maintenance), while the price of the single machine continues to decline. Due to the rapid development of microelectronics technology and the application of large-scale integrated circuits, the reliability of robot system has been greatly improved. In the past, the reliability MTBF of robot systems was generally several thousand hours, but now it has reached 50000 hours, which can meet the needs of any occasion.