Projector Script Interpreter for Firmware Adaptability
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Solution Overview
Problem
Projectors are limited by pre-written firmware that cannot be reprogrammed or modified after leaving the factory, preventing them from utilizing new functions even if the hardware supports them.
Innovation Solution
A projector with a control unit, storage medium, and projection module that includes a script interpreter, allowing for configuration of display parameters through scripts, enabling users to update functions and parameters without affecting operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If firmware is pre-written and fixed before the projector leaves the factory, then the projector has stable and reliable basic functions, but the projector cannot be reprogrammed or modified to support new functions even if the hardware supports them
Solution Approach 1:
The patent segments the firmware into two independent parts: a basic firmware that provides stable core functions, and a script file that provides extendable functionality. The script file is stored separately from the basic firmware, allowing it to be updated independently without affecting the stability of the core system. This segmentation enables the projector to maintain reliability while gaining adaptability through script updates.
Solution Approach 2:
The patent extracts the extendable function implementation from the fixed basic firmware and places it into separate script files. These script files can be independently updated, downloaded, and executed without modifying the core firmware. This extraction allows new functions to be added while preserving the stability of the basic firmware structure.
2Adaptability or versatility
If the firmware is fixed and cannot be reprogrammed after leaving the factory, then the projector structure is simple and easy to manufacture, but the projector cannot utilize new functions supported by the hardware
Solution Approach 1:
The patent uses script files that can be copied and distributed independently of the main firmware. These script files contain the implementation code for new functions and can be replicated across multiple projectors or updated remotely. This copying mechanism enables easy propagation of new functionality without requiring complex reprogramming of the core firmware during manufacturing.
3Adaptability or versatility
If firmware updates are performed frequently to add new functions, then the projector can support new features, but the number of firmware version updates increases and errors may occur
Solution Approach 1:
By segmenting the firmware into basic firmware and separate script files, the patent allows function expansion through script updates without requiring frequent updates to the core firmware. This reduces the overall number of firmware version updates needed and minimizes the risk of introducing errors into the stable core system.
Solution Approach 2:
The patent implements partial updates by allowing only the necessary script files to be updated rather than requiring complete firmware reupdates. This partial action approach updates only the specific functions that need to change, leaving the rest of the firmware untouched and stable, thereby reducing update frequency and error risks.
Data Source
AI summary
A projector and a control method are provided. The projector includes a control unit, a storage medium, and a projection module. The control unit includes a script interpreter. The control method includes: detecting whether a first script is stored in the storage medium by the control unit when the projector is in an operation state, in which the first script includes a first script language instruction; interpreting the first script through the script interpreter so as to obtain the first script language instruction in response to the first script being stored in the storage medium; and configuring a display parameter of the projection module according to the first script language instruction, in which the projection module plays a multimedia file according to the display parameter.