In recent years, a new round of "industrial revolution" has been launched in the construction industry, increasing the integration and innovative application of new technologies in the whole process of construction, accelerating the coordinated development of a new generation of information technology and construction industrialization technology, and building smart houses with robot . The age of construction has come.
A few days ago, the research team of China Construction News came to Guangzhou City and Foshan City, Guangdong Province, entered Guangdong Bozhilin Robot Co., Ltd. (hereinafter referred to as "Bozhilin"), entered the project site, and explored Bozhilin construction robots. development and application.
Multi-skilled "pink workers" appeared at the construction site
Country Garden·Xingxi project is located in Zengcheng District, Guangzhou City, and is one of the projects that Bozhilin is responsible for participating in the construction. At present, the main building of the project has been basically completed and is in the stage of interior decoration.
Standing outside the project site, the pink construction elevators on the exterior walls of several buildings are particularly conspicuous. Pink is the unifying hue of Bozhilin's construction robots. In the Country Garden·Xingxi project, this color is very common. One by one, construction robots dressed in "pink clothes" shuttle in the construction site, between floors, and in the house, making the place full of "cute" flavor.
Put on a hard hat, walk into the construction site, and within a few steps, you can see a chubby building cleaning robot "staring" and walking back and forth in the aisle.
The roads that are in the construction stage are uneven, and there are many kinds of dust such as cement ash, wall ash, and slag, and small stones and small fragments will appear from time to time... The seemingly simple cleaning work becomes more difficult on the construction site. A lot, but it's hard to resist a multi-skilled building cleaning robot.
Multi-sensor fusion technologies such as lidar, ultrasonic sensors, and anti-collision strips enable building cleaning robots to work safely under complex road conditions; dual filter elements and dual air duct designs allow building cleaning robots to face heavy dust. Get the job done with ease and without stage fright. Compared with manual cleaning, the operation efficiency of building cleaning robots is increased by three times, and the cleaning effect is also better.
Ride the intelligent construction elevator, walk into the building with the indoor spraying robot, walk through the corridor, and arrive at the foyer of a household, and it starts to work. I saw it waving its robotic arm up and down as it walked, spraying out latex paint evenly, and completing the spraying of one wall. Thanks to the multi-angle flexible arms, the indoor spraying robot can not only complete the automatic spraying of wall primer and topcoat, but also the spraying of bay windows, beams, ceilings, gypsum lines and other positions.
While the indoor spraying robot was working, in another room, the measuring robot was standing in the center of the room, rapidly turning its "eyes" 360 degrees. In less than 2 minutes, the data collection is completed, and various reports are generated and transmitted to the digital platform. The blessing of AI (artificial intelligence) algorithm allows it to measure various data such as the wall burst point, ceiling levelness, yin-yang angle, squareness, etc. of the room with high accuracy, and the measurement accuracy is within ±1 mm.
12 Product Lines Steel Team Covers the Whole Construction Cycle
Construction robots can not only show their talents in the decoration stage, but also in the earlier concrete construction. "Through the application of intelligent follow-up placing machines, ground leveling robots, ground leveling robots and basement leveling robots, the efficiency is higher, and the safety is also improved a lot." The project manager of Country Garden Star Jubilee Project introduced Say.
The traditional high-rise building concrete pouring operation requires three workers to complete the distribution work together, which not only tests the technical proficiency of each worker, but also requires the cooperation of multiple workers. In the Country Garden·Xingxi project, with the help of the "pink worker", an intelligent follow-up placing machine, a worker can easily complete the concrete pouring operation. In addition to remotely controlling the cloth arm of the intelligent follow-up cloth machine to reach the designated position through the handle to achieve precise cloth, you can also select the automatic mode and use the intelligent algorithm to make the intelligent follow-up cloth machine work autonomously.
How to deal with the phenomenon of potholes on the ground after the concrete is poured? At this time, it is the turn of the ground leveling robot with "working surface flatness ±5 mm" and "automatic leveling construction".
Two-degree-of-freedom adaptive system, high-precision laser elevation control system and real-time control system enable the ground leveling robot to stably work on reinforced concrete, and always maintain millimeter-level accuracy; The planning path can be automatically set to realize fully automatic leveling construction. With the ground leveling robot, the flatness requirements of the concrete leveling layer can be met during the construction phase of the main structure, speeding up the construction progress of the project and improving the construction efficiency.
It is understood that Bozhilin is a wholly-owned subsidiary of Country Garden Group. In the Bozhilin construction robot exhibition hall in Foshan City, dozens of construction robots including intelligent follow-up cloth machines and ground leveling robots are neatly arranged. arrangement. At present, Bozhilin has formed 12 construction robot product lines such as concrete construction, concrete finishing, brick laying and plastering, and interior wall decoration, involving the main structure, secondary structure, decoration, electromechanical installation and other construction links, basically covering the whole building. cycle.
As of the end of 2021, of the 46 construction robots under development by Bozhilin, the vast majority of robots are commonly used in cast-in-place concrete technology and prefabricated building construction, of which 18 construction robots have been put into commercial application.
In projects such as Fengtong Garden in Shunde in Foshan City, Haina Garden in Pingsha City in Zhuhai City, and Meishe Shijia in Haikou City, scenes of man-machine collaboration are in full swing, and the dream of "robots building houses" has been written into reality.
In various projects, Bozhilin construction robots have achieved breakthroughs in many aspects, including the completion of robot participation in the construction of demonstration areas, the establishment of robot dispatch centers, and the implementation of the multi-machine joint construction mode of trimming robots.
One step at a time, independent research and development of a number of core technologies
In the intelligent era where various industries are stepping up technology empowerment, the digitalization and automation of the construction industry is relatively low, and relatively extensive production methods such as "moving bricks, tying steel bars, pouring concrete, and installing formwork" are still common.
Construction sites are characterized by harsh operating environments, large differences in scenarios, and complex and changeable construction surfaces. Construction robots are quite different from industrial robots and other products in terms of core components and core algorithm requirements. In order to achieve a number of technological "zero" breakthroughs in the research and development of construction robots, Bozhilin's researchers moved the laboratory to the construction site and worked hard day and night.
"The three core elements of the research and development of construction robots are to ensure construction safety, improve construction quality, improve construction efficiency, and jointly promote and improve the comprehensive benefits of construction." The researchers of Bozhilin said.
In terms of hardware research and development, robot controllers have been applied in batches to about 20 types of construction robots in 12 categories, including floor construction, concrete finishing, masonry technology, paint and wallpaper construction, building cleaning, and indoor and outdoor spraying, with a cumulative delivery of nearly 850 pieces. ; 30 key components such as servo motors, drivers, vision sensors, and navigation fusion modules have also been mass-produced and applied to construction robots on-site construction; the developed six-axis collaborative robotic arm modular integrated components can improve the standardization rate of products , has delivered more than 100 units.
In terms of software research and development, Bozhilin has completed the fully independent development from the robot real-time operating system to the construction simulation system to the robot scheduling system. Among them, the navigation system can solve the problems of positioning, perception and walking of the building environment for construction robots; the multi-machine scheduling system can allow robots in different processes such as measurement, concrete correction, interior wall decoration, logistics and transportation to work together to achieve fully automatic construction operations. .
At present, there are 45 models of robot key components and basic sharing technologies under development by Bozhilin, covering eight core modules of construction robots: servo system, sensor, controller, gear train unit, AI (artificial intelligence), navigation system, vision Algorithms, robot management software. Among them, technologies such as navigation systems and visual algorithms have filled the gaps in the field of construction robots. By the end of 2021, Bozhilin had submitted 3,468 valid patent applications and 1,670 were authorized.
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