The practice of industrial robots in nearly half a century in many countries around the world shows that efficient and accurate robots are the gospel of industrial development. The complete set of equipment for industrial robots' automated production lines will become the mainstream and future direction of automation equipment. Recently, a "robot killing" incident that occurred in the German Volkswagen factory quickly triggered hot debates on artificial intelligence and robot applications. Humans have become skeptical and panicked about robot safety.
Review of events
According to the "Financial Times" report, on July 1st, at the Volkswagen plant in Kassel, Germany, a staff member suffered an impact while debugging a fixed robot, and was severely killed by a robot on a metal plate. The accident was initially determined to be a result of human error, not a problem with the robot.
Questioning Artificial Intelligence Security
The original report explained this as an ordinary industrial accident, but people seem to be indifferent to such arguments. Robots endowed with automation and artificial intelligence cannot recognize humans and industrial products, and accidental mistakes can cause humans to become victims. ?!
Facing the increasing trend of man-machine collaboration, robots are not limited to working in closed areas. They can gradually collaborate with people in open areas. How to ensure that the robot does not harm humans working with it? The German robotic "robot killing" incident undoubtedly sounded the alarm of human-machine safety.
"Human-machine collaboration is a basic premise for the smooth and cooperative development of humans and robots that cooperate with each other, highly secure and intelligently avoiding harm to humans," said the person in charge of the Inovance robotics product line.
Committed to the pursuit of high safety standards, in the process of exploring industrial robots, Inovance Technology is committed to providing robot core components and integrated solutions. The security design is top-down, from the inside out, from the components to the complete machine, both hard and soft, and is rooted in all aspects of the system, providing users with truly high-security robot control system solutions.
(I) Electrical solutions are the cornerstone of security robots
The electrical solutions of industrial robots mainly include robot control systems, servo drives, servo motors and various sensors. The technology of Inovance is broken from three aspects: industrial robot control systems, high-performance servo systems, and industrial vision to create a comprehensive and safe electrical solution. .
1. IMC100 robot control system: highly intelligent brain
As a carrier of industrial robot movements and on-site processes, the IMC100 controller is like a highly intelligent central brain. With its high-speed and real-time EtherCAT design, the main station has a synchronous period of 125us and a jitter time of less than ±0.04us, which can quickly respond to field failures. The multi-degree-of-freedom dynamic decoupling control of the robot directly controls the motor current and makes the robot run more safely.
2. IS620N Servo System: Strong Heart + Sensitive Nerves
ISMH series servo motor provides 3-4 times overload capacity; its real-time inertia identification, friction identification function and a variety of filter designs are enough to help the robot face a variety of complex environments and ensure safe operation throughout.
3. Industrial Vision: Intelligent Recognition High Accuracy Detection
The Inovance Technology Industrial Vision System covers high-dynamic image synthesis technology and enables customers to develop high-end visual applications. Sorting software Sort adopts the intelligent recognition model of human visual simulation, from image acquisition to intelligent classification, to ensure that the robot can be judged without error and sorting, and effectively avoid “wrong injuries†to the staff.
(B) Deepening the safety technology to all aspects of the robot
Safety technology is a necessary condition for ensuring the normal operation of the equipment. Under the current trend of human-robot collaboration, the work of industrial robots is no longer a matter of isolation from humans, but more and more people directly participate in and assist human work. Therefore, safety technology should be a must for industrial robot designers. Technology.
To promote industrial upgrading and create an industrial robot solution that truly works harmoniously with people, we focused on the following design.
1. Autonomous collision detection
Inovance's robotics products can monitor whether collisions occur at any moment of movement. Based on the automatic learning function, on-line monitoring and diagnosis of repetitive trajectory collisions; based on dynamic model control, the initiative to predict non-repeated trajectory collision; at the same time can achieve the torque and speed constraints in the case of robot failure, impact, and ultimately achieve safety Stopped.
2. Safe areas and obstacles are automatically circumvented
The safe area is a safety protection measure for the working area and speed of the robot. Users can set different levels of safety area (emergency stop area, alarm area, deceleration area) according to the application situation. When the robot enters the set area, the robot control system will There will be corresponding security measures. Inovance's robotic products can do the following:
a) The simulation software implements the design of obstacles around the equipment into the robot movement area to form the interference area;
b) Provide 3D visual recognition technology, identify the shape and trajectory of the machined workpiece, identify and extract features of the non-work area and path, and form an interference area;
c) The robot can be stopped after failure due to a fault, impact, etc., and the robot can be restarted under safety conditions, safe torque, etc. and safely return to the original point, reducing man-made operation difficulty.
3. Flexible configuration of the security interface
According to the actual site requirements, the security interface can be flexibly configured to support secure signal interfaces such as grating signal security interfaces, security gate signal security interfaces, three-position enabling switch security interfaces, and double-bit reset security interfaces. The robot control system can make corresponding safety protection measures according to the configured safety interface signal feedback.
a) Servo drive module provides STO safety function;
b) Access to auxiliary devices such as safety gates and security gratings to ensure safety protection in commissioning and operation.
4. Lightweight human-computer collaboration
a) Implant robot sensing technology: such as force sensing technology, visual perception technology, making it easier for robots and people to collaborate;
b) Built-in intelligent servo motor current detection technology ensures safety.
(III) Strict implementation of various testing standards for robots
All the core robot components provided by Inovance Technology strictly comply with relevant testing standards, complying with IEC61508 series, ISO13849, IEC62061 basic standards, conforming to IEC 61800-5-2 (driver products) and IEC 61131-6 (controller products), EN 61131 -2, EN 61800-3 product standard.
Huichuan Technology does not directly produce industrial robots, but we provide truly safe core components and solutions for industrial robot systems. We will make detailed and safe implementation of industrial robots' safety performance and technology, and promote industrial robot industry upgrading. Industrial automation and human-machine collaboration provide fully applicable and truly secure robotic solutions.