The invention discloses an unattended operation automatic weighing
system which comprises an industrial
personal computer, a wagon balance weighing unit, a gateway
control unit, a
signal lamp controller, an inlet recognition coil, an outlet recognition coil, a bar code recognition unit, a vehicle
license plate recognition unit, an image snapshot unit, an
LED display unit, a language prompt unit, a storage
server, an inlet
signal lamp, an outlet
signal lamp, an inlet car stop and an outlet car stop, wherein the wagon balance weighing unit, the gateway
control unit, the
signal lamp controller, the inlet recognition coil, the outlet recognition coil, the bar code recognition unit, the vehicle
license plate recognition unit, the image snapshot unit, the
LED display unit, the language prompt unit and the storage
server are respectively connected with the industrial
personal computer; the inlet
signal lamp and the outlet
signal lamp are connected with the signal lamp controller; the inlet car stop and the outlet car stop are respectively connected with the gateway
control unit. The invention further discloses a weighing method on the basis of the weighting
system. By means of scientifically and reasonably specifying and simplifying work procedures, weighing and metering are automatically achieved, weighing data are automatically input into an enterprise ERP
system, work intensity of a weighman can be greatly reduced, mistakes occurring during weighing are reduced, the phenomenon that the weighman cheats is reduced, and
internal management control of an enterprise is improved.