the use of lifting tools instead of manual labor has a very long history. as early as around 1600 b.c., china had used orange and roller. orange is a kind of lifting lever, and the windlass is the initial circle of the hand winch. and in ancient egypt and rome, the application of lifting tools is also very extensive. until the invention of steam engine, modern engineering machinery developed rapidly. by the beginning of nineteenth century, many kinds of engineering machinery, such as excavators, rollers and cranes, were developed by steam engine in europe. since the invention of internal combustion engines and motors, the development of construction machinery has entered another sector. after the second world war, the development of construction machinery was more rapid. its variety, quantity and quality can directly affect the development capacity of a country's production and construction, so all countries attach great importance to the engineering machinery and invest some financial resources for research and development.
now, in all kinds of engineering machinery, we can see the wireless control function, which is mainly through the development of the wireless industrial control system for many years, making all kinds of wireless automation equipment, engineering machinery restructure and maintenance, so that it is possible to control wireless. the development of the construction machinery is more than one floor.
