Reference

Smart Factory for Line 2000 - TRW Airbag Systems

LINE 2000 - TECHNOLOGY IN JAVA™

A statistics module was developed following the core components. In addition to statistics on assembly errors, quantities and availability, this also includes four different SPC cards. Java2D is used for visualisation.

The obligation to document all manufactured gas generators places high demands on the availability of the entire system. The production data from all assembly lines is stored centrally on a documentation server (PLR).

If the PLR fails, the data is automatically stored temporarily on the individual line computers. When the documentation server is available again, the temporarily stored data is transferred back to it. If, on the other hand, the line computer fails, a backup computer takes over the documentation and a finished component can only be packaged once the physical data storage has been acknowledged by one of the servers involved. This ensures complete documentation of all delivered gas generators. All the components mentioned were realised by Software Factory and are based on a common Java framework.

Assembly lines with Siemens Simatic S7™ controllers allow connection via Ethernet. The S7 network modules use OSI via TCP/IP according to RFC1006 as the communication protocol. Software Factory has developed a Java module for this network protocol to connect the assembly line to the line computer. This means that additional drivers are no longer necessary. By using 100% Pure Java, the S7 communication module is available on all common platforms.

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TRW Airbag Systems

Branch Automotive industry

Assembly line with PLC control and Java framework As part of the Line 2000 project at TRW Airbag Systems, a new generation of software for controlling assembly lines was developed as a 100% Pure Java application. Due to the heterogeneous structure of the network at TRW Airbag Systems, the platform independence of Java proved to be a great advantage. The server components of the system run on both HP-UX and Linux, and Windows XP/NT is also used as the client platform on standard office computers. Communication between the line computer and clients is realised with the help of RMI. The complete configurations of the assembly line and the individual production orders are stored on the line computers. For this purpose, a MySQL™ database is integrated with the help of JDBC.