System and method for controlling jobs of a production device

• US 7,363,209 B2
• Filed: 01/29/2004
• Issued: 04/22/2008
• Est. Priority Date: 02/10/2003
• Status: Expired due to Fees

• Current Assignee: Siemens AG
• Original Assignee: Siemens AG
• Inventors: Kuschel, Sebastian, Limmer, Gerd
• Primary Examiner(s): Phan; Thai
• Application Number:
  US10/544,973
• Publication Number:
  US 20060190115A1
• Time in Patent Office: 1,545 Days
• Field of Search: 703/2, 703/22, 703/25, 703/20, 358/296, 358/1.15, 700/100, 700/19
• US Class Current: 703/20
• CPC Class Codes: G06Q 10/06 Resources, workflows, human or project management; Enterprise or organisation planning; Enterprise or organisation modelling

Abstract

The invention relates to a system and a method for controlling jobs of a production device. The aim of the invention is to allow a current situation to be analyzed and the required operations to be planned, executed, and monitored irrespective of mathematical routines for optimizing the throughput. Said aim is achieved by the fact that a simulated image is formed starting from an initial situation based on real resources and real jobs, a potential sequence of jobs is optimized based on the initial situation regarding available resources and available jobs with the aid of an optimization algorithm, and the production device is controlled with the aid of a solution algorithm such that a target state is determined by simulating the required operations of the production device.

Claims

1. A system for controlling jobs of a production device having resources and jobs, comprising a data processing device, wherein the data processing device comprises:

a simulated image of the production device, the simulated image including simulated resources of the production device resources and simulated jobs of the production device jobs;

a planning facility for determining a possible optimum sequence of the jobs of the production device based on an initial situation with regard to simulated resources and simulated jobs with the aid of an optimization algorithm; and

a procedure control unit for coordinating the control of the production device with the aid of a solution algorithm, which is provided for ascertaining a target state by simulating the necessary operations of the production device.

2. The system according to claim 1, wherein the production device is a manufacturing machine, a production machine, a manufacturing plant, and/or a production plant.

3. The system according to claim 2, wherein the solution algorithm is provided for verifying the possible optimum sequence of the jobs determined by the planning facility.

4. The system according to claim 2, wherein the planning facility is provided for coordinating the starting of waiting jobs on the basis of the current situation image.

5. The system according to claim 1, wherein the solution algorithm is provided for verifying the possible optimum sequence of the jobs determined by the planning facility.

6. The system according to claim 5, wherein the planning facility is provided for coordinating the starting of waiting jobs on the basis of the current situation image.

7. The system according to claim 1, wherein the planning facility is provided for coordinating the starting of waiting jobs on the basis of the current situation image.

8. The system according to claim 7, wherein the planning facility is provided for coordinating the starting of waiting jobs on the basis of the current situation image and with the aid of the optimization algorithm.

9. A method for controlling jobs of a production device, comprising:

creating a simulated image including simulated jobs and simulated resources;

creating a possible optimum sequence of jobs via an optimization algorithm, the possible optimum sequence of jobs based on the simulated resources and the simulated jobs via an optimization algorithm; and

controlling the production device with the aid of a solution algorithm in such a way that a target state is ascertained by simulating the necessary operations of the production device.

10. The method according to claim 9, wherein a stage where a possible optimum sequence of the jobs is created on the basis of the initial situation with regard to existing resources and existing jobs with the aid of the optimization algorithm is carried out multiple times.

11. The method according to claim 9, wherein the solution algorithm attempts, on the basis of a given simulated situation, to achieve a predefinable target state of the production device by simulating the necessary operations/stages.

12. The method according to claim 9, wherein forward-planning operations and responses are determined in advance through the compilation of an action list which contains all the actions up to the final depletion of the production device.

13. The method according to claim 9, wherein defective situations are identified by continuously evaluating the situation images and new actions are created for eliminating or bypassing the defective situations.