Research And Design Of Excavator Control System Based On ARM And Linux

As one of the key products of construction machinery, excavator plays an important role in the construction of national infrastructure. The manufacturing technology and production capacity of excavators not only represent the level of national construction machinery, but also reflect the whole national equipment manufacturing industry. Along with the rapid development of electronic control and sensor technology, the excavator has greatly improved the performance in energy saving, working efficiency, operating precision and so on.As the core component of the excavator, the control system directly is significant to product automation, the degree of intelligence and thus directly affect the construction work efficiency and the quality of work. So intelligent construction is bound to represent the future of the machinery. The main task here is to design a high-performance embedded excavator controller based on the medium excavators of Sunward.After analyzing control points of SWE230and consulting lots of material, this paper completed the design of hardware and software of a controller for excavator, which is based on the research of construction machinery controllers both home and abroad. The design here adopt ARM932-bit processor and embedded Linux2.6core, based on which peripheral interfaces such as serial port, can bus, LED screen, I/O port, A/D and so on, are extended. This system can pass the real-time information of position and working conditions of the excavator to the controlling center. It not only satisfies the request of controlling system at the present stage, but also lays an important base for intelligentization in the future. The transplantation of Embedded Linux is also discussed in detail in this paper.SWE230from Hunan Sunward used as a carrier, this paper introduces embedded Linux to the control system of excavator for special use for the first time. The design of the control system has been tested both in lab and on-site, the result of which shows that the performance and the stability both reach the standard of construction machinery industry. It shows a new method for control system of construction machinery, which is of great value to national construction machinery industry under the condition that it is far behind the developed countries in the west.