Unmanned Weighbridge

Abstract

Unmanned Weighbridge is a conception of a system for measuring weight of dispatched or purchased material in industries, without human intervention. An empty truck is being weighted on this weighbridge, and the measurements are called tare weight. When it is loaded and again being weighted, it gives a gross weight. The difference of gross weight and tare weight is net weight, which is the amount of the material loaded onto the truck. The process of weighment includes human intervention for entry into data base. As if the human intervention will be removed, the speed up of weighment process can be made up, no longer be bounded with human intervention. The measurement must be done in real time, and accurate billing information must be generated from the weight difference. And same phenomenon must be used in unloading also. To implement this system, authorization of truck, first and second weight with alignment of Centre of Gravity (CG), transaction with data base, and intermediate data conversion are the expects to be covered. Raspberry Pi as a target board is used to make this data communication and conversion possible. Lightweight Linux kernel wheezy, is used to accomplish this functionality, with python libraries to implement SPI, I2C and UART communication with peripheral devices.