Fan Driver Program Updating Through Existing Control Pins
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Solution Overview
Problem
Current fan devices require time-consuming and costly replacement of storage components when the driving program is determined to be incorrect or unsuitable, necessitating a more efficient method for updating the driving program.
Innovation Solution
A driving device and updating method that includes a signal converter, storage circuit, controller, driver, and detection circuit, which converts input signals, stores and updates the driving program based on a program update command within the existing pin configuration, eliminating the need for additional pins and reducing replacement costs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the storage component is replaced to update the driving program, then the driving program can be updated, but the process is time-consuming and costly
Solution Approach 1:
The patent uses a copy of the driving program stored in the storage circuit, allowing updates to be made by writing to the existing storage circuit rather than replacing the entire storage component. This enables rapid program updates without the time-consuming process of component replacement.
Solution Approach 2:
The patent changes the state of the storage circuit from storing a fixed driving program to being able to receive and store updated driving program data through the detection circuit. This parameter change allows the storage circuit to transition between read-only and writable states, enabling efficient updates.
2Reliability
If the storage component is replaced to update the driving program, then the driving program can be updated, but the cost increases
Solution Approach 1:
Instead of replacing expensive storage components, the system creates a writable copy of the driving program in the existing storage circuit. This approach eliminates the need for costly component replacement while maintaining program correctness through verified update procedures.
Solution Approach 2:
The storage circuit performs the update operation itself by receiving the new driving program data through the detection circuit and writing it to its own memory structure. This self-service capability eliminates the need for external component replacement operations, reducing both cost and complexity.
3Adaptability or versatility
If additional pins are added to update the driving program, then the program can be updated, but the device complexity increases
Solution Approach 1:
The detection circuit serves multiple functions: it detects control signals for normal fan operation and also detects program update commands. This multi-functionality allows the existing pin to handle both operational control and program updating without requiring additional pins, thereby maintaining simplicity while adding adaptability.
Solution Approach 2:
The patent merges the program update function with the existing control signal input function by using the same pin and detection circuit for both purposes. The detection circuit distinguishes between normal control commands and update commands through signal analysis, combining multiple functions into a single integrated interface.
Data Source
AI summary
A driving device and a driving-program updating method are provided. The driving device includes a signal converter, a storage circuit, a controller, a driver, and a detection circuit. The signal converter receives a first signal and converts the first signal into a second signal. The storage circuit stores a driving program. The controller provides a control signal in response to the second signal and the driving program. The driver drives a fan unit in response to the control signal. The detection circuit detects whether the first signal includes a program update command. When the first signal includes the program update command, the detection circuit updates the driving program stored in the storage circuit based on the program update command.