Microcontroller State Machine Configuration for Real-Time Speed
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Solution Overview
Problem
Microcontrollers face performance limitations in real-time task execution due to their sequential nature, which is slower compared to application-specific integrated circuits (ASICs) that can execute tasks in parallel, making them less suitable for operations requiring rapid processing.
Innovation Solution
Implementing a two-stage method where a microcontroller pre-evaluates static conditions and generates a state transition list during a configuration stage, allowing for faster real-time execution by focusing only on predetermined actions and states during the run-time stage, thereby improving performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If a microcontroller executes tasks sequentially, then it maintains flexibility and low cost, but its processing speed is slower compared to parallel-executing ASICs
Solution Approach 1:
The patent applies preliminary action by pre-evaluating static conditions and generating a state transition list during a configuration stage before real-time execution. This allows the microcontroller to prepare execution paths in advance, reducing the number of states and transitions that need to be evaluated during real-time operation, thereby improving processing speed while maintaining the flexibility of sequential execution
Solution Approach 2:
The patent segments the execution process into two distinct stages: a configuration stage for pre-evaluation and setup, and a run-time stage for actual execution. This segmentation allows complex processing to be divided into preparatory work (done once) and simplified real-time operations, effectively increasing processing speed without requiring parallel execution hardware
2Productivity
If a microcontroller evaluates all states and transitions in real-time, then it ensures complete processing, but execution time increases
Solution Approach 1:
The configuration stage performs preliminary evaluation of static conditions and generates the state transition list before real-time execution. This preliminary action identifies and prepares the execution path in advance, so that during run-time the microcontroller only needs to follow the predetermined transitions rather than evaluating all possible states, significantly reducing execution time while maintaining complete processing
Solution Approach 2:
The patent extracts the time-consuming evaluation of static conditions from the real-time execution path and moves it to the configuration stage. By taking out these preliminary evaluations and performing them beforehand, the real-time execution only handles dynamic transitions, improving productivity without losing processing completeness
Data Source
AI summary
A system and method for implementing a real-time state machine with a microcontroller is disclosed. The method includes using a two-stage process, including a configuration stage and a run-time stage, for processing objects for a printing device. The configuration stage is executed prior to the run-time stage, which operates in real-time. During the configuration stage, the system predetermines a state transition list, devices that need to be monitored, devices that need to be controlled, and other variables used during the run-time stage. Once the configuration stage is complete, the system executes the run-time stage in real-time to complete processing of an object for a printing device. By pre-calculating items during the configuration stage, the system reduces the execution time of the run-time stage in real-time. As a result, the performance of the microcontroller in real-time is enhanced.