Taking ten years as a dimension, starting from 2010, the average price of traditional multi joint robots has plummeted from more than 300000 yuan to about 150000 yuan, the price of SCARA has also dropped from more than 70000 yuan to about 40000 yuan, and the price of AGV has dropped from more than 300000 yuan to about 120000 yuan.

But the sales of robots are still not going up.

This also makes us start to think about a question: when the return on investment ratio of enterprises has approached or even reached our expectations, what is restricting the development of robots, and where is the future direction of robots? What is the robot that meets everyone’s expectations?

Appearance: Compound robot

The robot arm replaces the hand, the AGV replaces the foot, but they are too single, so the AGV + robot arm is born, which is expected to form the effect of 1 + 1 > 2.

But it also represents its higher technical difficulty and cost.

First of all, in terms of technical difficulty, the hybrid robot is mainly composed of AGV, manipulator, camera and end effector. The common hybrid robots in the industry are purchased by integrators for assembly and secondary development. This leads to the complexity of the structure of the robot. Because the controllers of each sub unit are different, the internal communication protocols are completely different, and the secondary development of the integrator is more complex.

Second, the price of the product. There are hundreds of thousands of AGV, robot arm, visual system and secondary development of integrators. Especially in the current global industrial chain adjustment, enterprises are more cautious about controlling equipment investment.

It can be seen that the problem of hybrid robot is not the market, but the product itself.

Perhaps it is aiming at this market that more and more cooperative robots and AGV enterprises are working hard on composite robots recently. For example, in April this year, jieka signed a strategic cooperation agreement with fastwarehouse. The two sides will carry out in-depth cooperation around composite robot technology, and expand the comprehensive application of composite robots in intelligent logistics, smart factories and other fields.

Upgrade: Mobile cooperative robot

But for integrators or terminal enterprises, they want to find a supplier who can provide one-stop procurement services such as mechanical arm, AGV, vision, etc., so there is an “upgraded version” of compound robot mobile cooperative robot. This kind of robot does not need the second development of the integrator. It directly uses one controller to solve all the parts. It’s faster, better and cheaper.

The future of mobile cooperative robots

Difference between hybrid robot and mobile cooperative robot

On February 4, 2020, ur and Mir announced that they will build the world’s largest mobile cooperative robot center in Denmark. The two leading enterprises in the industry join hands to target new markets and new demands.

At the same time, most of the domestic products of the same type are simple combination of AGV and manipulator, not mobile cooperative robot. This is because in addition to the cooperation of the two sides to be frank in some technical problems, the truly integrated design of mobile cooperative robot, the overall control algorithm requirements are very high.

Taking the terminal control as an example, the popular operation mode is teaching programming, that is, dragging the robot to demonstrate the action first, but for the compound robot, it is not feasible.

Because the general positioning accuracy of AGV in the industry is about ± 5mm to 10mm, it can only send the manipulator to a general position, that is to say, the location of the manipulator is different every time. Therefore, integrators generally use vision to assist positioning, which greatly increases the difficulty and cost of calculation.

Zeng Yuquan, general manager of Shanlong intelligent control, said: “we used the double vision assisted positioning method to do this kind of project for CNC workshop before, because AGV can only transport the manipulator to the approximate position, but the vision also has the field of vision. The higher the accuracy, the smaller the field of vision. So we did a rough and precise positioning. There is also the need for PLC to coordinate the whole process control, the need for secondary development of vision and software

As a specialized mobile cooperative robot manufacturer, Moying technology’s mobile robot chassis uses mcnamm wheel, which can achieve ± 1mm repeat positioning accuracy. For applications with fixed operation position, such as machine loading and unloading, assembly, the accuracy of ± 1 mm has met the accuracy requirements of most scenes. At this time, there is no need for secondary positioning by vision. The manipulator on the mobile cooperative robot can be directly used as a fixed manipulator to improve production efficiency and save the cost of vision module for customers.

However, due to the material problems, the cost and maintenance cost of mcnamb wheel are too high, and the general accuracy of body structure is difficult to meet, so the industrial scene is still waiting for technological breakthrough.

Branch: large humanoid service robot

Industrial scene pays attention to stability, but can the breakthrough of interactive function make mobile cooperative robot transform into a breakthrough of home large-scale humanoid service robot in the future.

According to the “2020 mobile service robot industry research and analysis report” published by GGII, the scale of China’s service robot market in 2019 is 15.38 billion yuan, with a year-on-year growth of 36.1%; from 2013 to 2019, the average annual compound growth rate of China’s service robot market is more than 30%.

At the 2019 world robotics conference held last year, service robots, as the most closely related type of robots to people’s daily life, aroused the strong interest of a large number of exhibitors.

According to people in the industry, based on the upgrading and optimization of artificial intelligence technology, the types of service robots are becoming more and more abundant, and their autonomy is constantly improving. At present, the types of domestic service robots have been extended from floor sweeping robots and meal delivering robots, which are the first ones in the market, to emotional robots, accompanying robots, educational robots, rehabilitation robots, supermarket robots, etc, In particular, the field of home service and service objects are constantly expanding.

The future of mobile cooperative robots

“At present, many small domestic robots mainly use interaction, accompany and other functions, and it is not easy to realize physical interaction. In the future, the large-scale humanoid service robot will replace more simple and repetitive work at home and really do something for people’s daily life. ” Xiong Youjun, CTO of superior technology, said.

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