Software architecture system having a virtual I/O channel including multi-layered communication interface in between virtual stations and physical modules

• US 5,603,059 A
• Filed: 04/22/1994
• Issued: 02/11/1997
• Est. Priority Date: 04/22/1994
• Status: Expired due to Term

• Current Assignee: Pitney Bowes Incorporated (Böwe Systec AG)
• Original Assignee: Pitney Bowes Incorporated (Böwe Systec AG)
• Inventors: Churchill, Steven J., Kerney, Raymond J., Daniels, Edward P. Jr.
• Primary Examiner(s): Lee, Thomas C.
• Assistant Examiner(s): Luu, Le Hien
• Application Number:
  US08/232,542
• Time in Patent Office: 1,026 Days
• Field of Search: 395/825, 395/838, 395/849, 395/831, 395/856, 395/858, 395/725, 395/775, 395/406, 395/418, 370/94.1, 370/110.1
• US Class Current: 710/36
• CPC Class Codes: B07C 1/00 Measures preceding sorting according to destination

Abstract

A software architecture system is provided for real-time control of an inserting system having a central processor coupled to a plurality of distributed processors that are associated with physical modules of the inserting system, wherein the central processor is coupled to the distributed processors by at least one type of physical I/O channel. The system includes real-time control routines resident in the central processor, a plurality of virtual stations resident in the central processor, wherein each of the software stations corresponding to one of the physical modules of the inserting system. The system further includes at least one virtual I/O channel corresponding to each type of the physical I/O channel, the virtual I/O channel being resident in the central processor and operatively coupled to the physical I/O channel, and a message dispatcher resident in the central processor for dispatching messages from the virtual stations to the corresponding physical modules through the virtual I/O channel. The virtual I/O channel includes a multi-layered communication interface between the physical and the virtual stations, which includes an application interface layer that is independent of the type of physical I/O channel and a physical layer that is changes according to the type of physical I/O channel.

Claims

1. A software architecture system for real-time control of an inserting system having a central processor coupled to a plurality of distributed processors that are associated with physical modules of the inserting system, the central processor being coupled to the distributed processors by at least one type of physical I/O channel, comprising:

real-time control routines resident in the central processor;

a plurality of virtual stations resident in the central processor, each of said virtual stations corresponding to one of the physical modules of the inserting system;

at least one virtual I/O channel corresponding to each type of the physical I/O channel, said virtual I/O channel being resident in the central processor and operatively coupled to the physical I/O channel; and

means resident in said central processor for dispatching messages from said virtual stations to the corresponding physical modules through said virtual I/O channel;

wherein said virtual I/O channel includes a multi-layered communication interface between the physical modules and said virtual stations, said multi-layered communication interface including an application interface layer, a queue layer, a dispatch layer, a dynamic link protocol layer, and a physical network layer, wherein said application interface layer interfaces directly with said virtual stations and said physical network layer interfaces directly with the physical I/O channels.

2. The system of claim 1 wherein said dispatching means dispatches messages from said physical modules to corresponding ones of said virtual stations.

3. The system of claim 1 wherein each of said virtual stations is independent of the type of physical I/O channel connected the corresponding physical modules.

4. The system of claim 1, further comprising a user interface operatively coupled to said virtual I/O channel for communication to said virtual stations and the physical modules.

5. The system of claim 1 wherein the plurality of physical modules connected to a plurality of physical I/O channel types communicate among themselves through said virtual stations and said virtual I/O channels.