Providing block state information for a model based development process

• US 8,527,941 B2
• Filed: 06/18/2010
• Issued: 09/03/2013
• Est. Priority Date: 09/20/2004
• Status: Active Grant

• Current Assignee: The MathWorks, Inc.
• Original Assignee: The MathWorks, Inc.
• Inventors: Clark, Martin
• Primary Examiner(s): Zhen, Wei
• Assistant Examiner(s): BROPHY, MATTHEW J
• Application Number:
  US12/818,488
• Publication Number:
  US 20100257506A1
• Time in Patent Office: 1,173 Days
• Field of Search: None
• US Class Current: 717/105
• CPC Class Codes: G06F 30/20 Design optimisation, verification or simulation optimisation, verification or simulation of circuit designs G06F30/30

Abstract

A method and system for providing a block for use in a block diagram in a graphical modeling environment which is capable of outputting information regarding the dynamic state of the block.

Claims

1. A computer-implemented method comprising:

transforming, using a computer, state information of an entity of a model, where;

the entity has an input port for receiving an input and an output port for providing an output, and

the state information is distinct from the input and the output;

performing, using the computer, a mathematical transformation on the state information of the entity;

producing, using the computer, a result using the mathematical transformation, the result produced without modifying the input and the output of the entity; and

outputting by reference, using the computer, the result without using a port of the entity.

2. The method of claim 1, wherein the result includes a dynamic representation of the state information of the entity.

3. The method of claim 1, wherein the result is provided during an execution of the model.

4. The method of claim 1, wherein the mathematical transformation is an identity transformation.

5. The method of claim 1, wherein the mathematical transformation is at least one of:

a path gain evolution, matched filter bound, phasor trajectory, composite narrow band trajectory, channel block impulse response, channel frequency response, scattering function, power delay profile, Doppler spectrum, frequency correlation function, time correlation function, mean delay, RMS delay spread, mean Doppler shift, RMS Doppler shift, coherence bandwidth, coherence time, fade distribution, level crossing rate, average fade duration, or zero crossing rate.

6. The method of claim 1, wherein the result is outputted to a file or a display device.

7. The method of claim 1, wherein the entity is represented by a graphical block in a graphical block diagram of the model and wherein the method further comprises:

displaying the graphical block in a manner that indicates the result was produced from the state information of the entity.

8. The method of claim 7, wherein the graphical block is colored to indicate that the result was produced from the state information of the entity.

9. The method of claim 1, wherein the state information of the entity includes one or more snapshots of a state associated with the entity and where the method further comprises:

displaying a number of snapshots of the state associated with the entity that is included in the state information of the entity.

10. One or more non-transitory computer-readable storage media for storing computer-executable instructions executable by processing logic, the media storing one or more instructions for:

transforming state information of an entity of a model, where;

the entity has an input port for receiving an input and an output port for providing an output, and

the state information is distinct from the input and the output;

performing a mathematical transformation on the state information of the entity;

producing a result using the mathematical transformation, the result produced without modifying the input and the output of the entity; and

outputting by reference the result without using a port of the entity.

11. The media of claim 10, wherein the result includes a dynamic representation of the state information of the entity.

12. The media of claim 10, wherein the result is provided during an execution of the model.

13. The media of claim 10, wherein the mathematical transformation is an identity transformation.

14. The media of claim 10, wherein the entity is represented by a graphical block in a graphical block diagram of the model and wherein the media further comprises one or more instructions for:

displaying the graphical block in a manner that indicates the result was produced from the state information of the entity.

15. The media of claim 10, wherein the state information of the entity includes one or more snapshots of a state associated with the entity and where the media further comprises one or more instructions for:

displaying a number of snapshots of the state associated with the entity that is included in the state information of the entity.

16. A system comprising:

a processor for;

transforming state information of an entity of a model, where;

the entity has an input port for receiving an input and an output port for providing an output, and

the state information is distinct from the input and the output;

performing a mathematical transformation on the state information of the entity;

producing a result using the mathematical transformation, the result produced without modifying the input and the output of the entity; and

outputting by reference the result without using a port of the entity.

17. The system of claim 16, wherein the processor further executes the model and the result is provided during the execution of the model.

18. The system of claim 16, wherein the entity is represented by a graphical block in a graphical block diagram of the model and wherein the processor further:

displays the graphical block on a display device, wherein the graphical block is displayed in a manner that indicates the result was produced from the state information of the entity.