Recently, LIUGONG's intelligent machine group consisting of an unmanned paver 512E, two unmanned double steel wheel rollers 6213E and two unmanned tire rollers 6530E has realized the fully automatic paving and compaction of asphalt pavement at the construction site of S422 Provincial Road in Nanjing, Jiangsu. This is the first time that LIUGONG has applied unmanned asphalt layer compaction technology to highway construction, marking a milestone for LIUGONG's road machinery in the field of intelligent construction.

LIUGONG's unmanned compaction machine group integrates core technologies such as Beidou high-precision positioning, intelligent perception, automatic control and cluster collaboration. It adjusts the equipment path in real time through self-developed algorithms, eliminates human operation errors, and ensures uniform thickness of the paving layer and tight joints. The unmanned paver and roller group interact with data in real time through the Internet of Things, automatically planning the optimal number of rolling times, speed and overlap width, and realizing seamless connection of the entire process of "paving-initial compaction-re-compaction-final compaction". The equipment is equipped with an intelligent obstacle avoidance system and a remote monitoring platform, which can adapt to complex working conditions such as high temperature and nighttime, significantly improving construction efficiency while reducing manpower input.

This S422 provincial road project is not the first appearance of LIUGONG's unmanned driving technology. Previously, the technology has been rigorously tested in many national projects.

Baoyin High-speed Railway: Intelligent Construction Empowered by Technology

During the construction of the high-speed railway track subgrade in Bayannur City, Inner Mongolia, the unmanned roller accurately controls the rolling parameters through cloud-based intelligent planning, effectively avoiding manual operation errors and ensuring the compaction and stability of the roadbed.

Lawa Hydropower Station: A Magical Weapon on the Plateau

Located at an altitude of 2,700m, LIUGONG's unmanned roller faces the lack of oxygen on the plateau and hard granite rockfill. With a compaction depth of more than 1m and a continuous operation capacity of more than 20h per day, it helps the construction of ultra-high altitude concrete panel rockfill dams.

Gansu Qingfu Highway: The first unmanned construction case of water-stable layer

The first unmanned construction case of water-stable layer, one person can remotely control 3 devices, the construction trajectory accuracy is controlled at 2~3cm, and the index qualification rate reaches 100%.

LIUGONG has always been committed to driving product upgrades and construction mode changes with technological innovation. This "first show" of unmanned asphalt layer spreading and compacting construction in the field of Jiangsu highway construction is another milestone for LIUGONG road machinery to continue to deepen its intelligent and unmanned track.

In the future, LIUGONG road machinery will continue to deeply develop smarter, more efficient and greener road construction products and solutions, constantly break through technological boundaries, empower infrastructure construction, and contribute LIUGONG's strength to building a strong transportation country and promoting Chinese smart manufacturing to the world.