Research And Development Of Logistics Digital-Code Anti-Counterfeiting System

With the prosperity of market economy, counterfeit commodities have been a emerging problem. And the globalization and specialization has made the logistics, a third-party profit, important for this trend, and push the inventory management and market supervision on a high level. Under this background Logistics Digital-Code Anti-Counterfeiting System (LDCACS) integrated the computer, electronics, encryption technology is developed to achieve the integrated information management platform by means of the combination of the printing code, the bar code, the mobile phone message and the network recognition techniques.Based on the principle of LDCACS and understanding the key techniques systematically, a novel technical solution has been presented in the paper, which prints the 20-bit and 19-bit anti-counterfeiting code respectively. A Code-Generator equipment embedded in the Videojet 68 series ink jet printer has been developed to rapidly produce the 20-bit anti-counterfeiting code to the ink jet printer and simultaneously a 19-bit code containing 50 or 500 block data to the bar code printer. An embedded real time OS RTX-51 is utilized to the implementation of the complex task scheduling and memory management for the purpose of the real-time capability and stability. In the paper anti-jamming problem has also been analyzed from the hardware and software angle.The hardware and software design for the customer-specific Reader and Code-Deliverer is proposed, and much attention has been paid on the interactive interface between the graphic LCD module and the keyboard. At last some problems emerging during the practical installation, debug, and pilot-run process have been discussed comprehensibly and then the improvement was made.In summary, as an advanced technology with stability and reliability, Logistics Digital-Code Anti-Counterfeiting System presented in the paper will be popular extensively in the modern society.