Editor's note: under the nineteen big call of the party, Changsha is trying to achieve the transformation of Changsha manufacturing to Changsha, the transformation of Changsha products to the Changsha brand, and the contribution of "Changsha power" to the construction of the powerful country. Changsha Railway Station will be in deep in Changsha Industrial Park, industrial project site, from now on to launch the "intelligent manufacturing to see Changsha" series of reports, with you "visit" Changsha intelligent manufacturing exciting new picture.
Is it boring to repeat driving on the same road? Panic at the dangerous scene? Is it "handy" for precise driving? Want to steal a couple of laziness and pressure?... These common problems in the operation of traditional rollers, with the application of "driverless" technology, now have the hope of solving. A few days ago, reporters in the Liuyang High-tech Zone Yongfu Road, Zhongda machinery saw dozens of tons of rollers can also achieve driverless operation.
In the domestic engineering machinery market, unmanned technology has been a hot topic in the field of automation in the domestic engineering machinery market, especially the engineering machinery is gradually changing to the trend of intelligence. He Shunjun, Minister of the Ministry of machinery and technology of China and the University of China, introduced the industry trend and market demand. The company began to dabble in the R & D field of intelligent road roller in 2013. At present, 32 tons and 36 tons of two models are being tested in various sites all over the country.
"Unmanned roller compactors are widely used, including large dams, airports and highways." He Shunjun explained the advantage of this vibration rolling machine intelligent pilotless system to reporters. Taking the construction of earth rock dam as an example, the roller compaction of soil and rock is a key construction process. It has strict requirements for the rolling speed, number of times and the distance of the tower connection. By manual operation, it is easy to appear weary, deviating from track and fine. The problem of low degree of accuracy is not high. In the unmanned mode, the accurate and tireless work can be achieved in a certain range by the input of the correct parameters according to the operating environment and requirements of the field. "How many times do you press, how thick the pressure is and how to follow the line?" He Shunjun is full of confidence.
How to finish the "precision intelligent" road work? He Shunjun introduced the Zhongda mechanical driverless road roller, consisting of three main parts: the vibratory roller, the reference station and the main control room. The reference station is composed of GNSS (Global Navigation Satellite System). It has the function of positioning service. The main control room includes the server and the computer, and the information exchange is realized by sending instructions. The three interconnections, combined with the use of later software, can achieve "driverless".
"In collaboration with relevant scientific research institutions in the process of research and development, we determine the main body framework, which reforms the technology to ensure the accuracy and reliability of the roller compacted according to the field test feedback." He Shunjun introduced, the company constantly debugging parameters, to ensure that driverless "fool implanted" operation can be directly copied into each machine. After the intelligent road roller "on the road", not only can realize the more "intelligent" road, the compaction thickness, the record of the times, the report of the compactness, even the leak pressure in the later period, all can form a complete set of data list, provide the data support for the technical personnel, and eliminate the "steals to be reduced" during the operation. The possibility of "material".
"How effective is the unmanned signal command in a wide range?" The reporter learned that at present, the company's intelligent road roller signal can cover at least 15 kilometers, and can achieve multi machine linkage, the maximum guarantee of the signal is available, and take into account the actual operation of a number of unmanned road rollers around the surrounding. "One person can operate several rollers at the same time," He Shunjun said. "It is also a gospel for the enterprise to solve the problem of hard labor and high labor cost."
