The System For Weighting Automatically Of Coalmine Pit

The weigh_in_moving (WIM) is a method that can gain the stable value of the power signal of the weighed object, according to the change regulation of the power signal of the weighed object along with the time, before the weighed object come to the static state. Because this kind of weighing method will not bring bad influence to the production mode of the modern system, in which the dividing work is more and more exiguous, the efficiency is requested more and more high. Although there is a distance between the weighing accuracy of the WIM and the WIS, the WIM has more and more application in the every region of the national economy. No overstate, the technology of the WIM must be the developing trend of the weighing technology in future.Shear to slice the beam type to spread the feeling tool contain the conversion to the side to carry the lotus dint not the sensitive, can resist to lack of impartiality to carry the lotus, the shape height lowly, install the expenses little etc. advantage, this system chooses the series of SB of use the company of Siemens to shear to slice the beam type to spread the feeling machine to carry on weigh the dint signal.Because the coal mine production condition of the mountain area is simple and crude, the work environment is bad, in consideration of cost, solid hour and this system functions that weigh the system works will turn toward network in the future, the intelligence turns to develop of can expand sex, this system adopted the design project that a machine combines with the PC machine, choosing to developped to weigh the numerical signal of data to collect the mold piece with the 16 machine MSP430F449 and a company of American emulator product AD1380, the data that counteracts a gossip to collect the mold piece and PC machines now deliver.This paper elaborated that the present state and development of the WIM technology. Invited by the committee and government of the Dafang County, we design a set of automation weighing system for the ten colliery of this county, under the current conduction. This system is composed by the software and hardware. The hardware mainly include steelyard set( the mineral well already has the orbit part), data collection system, signal adjusting system, signal processing system. The software mainly is made up of four parties, including data collection model, A/D conversation model, digital filter model and the EMD data processing model.