DIP Switch Control Circuit for Doubling Coding Signal Inputs
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Solution Overview
Problem
Intelligent lighting systems face challenges in activating adjacent groups of lighting devices when a moving object crosses group boundaries due to insufficient signal pins in Bluetooth™ modules or microcontrollers, leading to increased costs with multitasking chips.
Innovation Solution
A main control device with a processing module, DIP switches, and inverting modules, utilizing a circuit design that doubles the reception capacity of coding configuration signals without requiring multitasking chips, achieved through a switching mechanism and delay time mechanism to ensure accurate signal reading.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the lighting device at the end of the group is included in the adjacent group as well, then the lighting devices of the adjacent group can be activated in time, but the number of signal pins required doubles
Solution Approach 1:
The patent applies dynamic switching by controlling the connection state of switches S1 and S2 based on the state of the first DIP switch. The processing module dynamically changes which DIP switch is active (first or second) based on whether the moving object is in the first or second group, allowing the same physical pins to serve multiple group identification purposes at different times
Solution Approach 2:
The patent implements periodic switching between two operational modes: when the moving object is in the first group, the first DIP switch is active and the second is inactive; when the moving object moves to the second group, the switches toggle states. This periodic action allows the system to handle two group identifiers sequentially using the same hardware resources
2Adaptability or versatility
If multitasking chips are used to solve the signal pin insufficiency, then the reception capacity of coding configuration signals can be increased, but the cost increases significantly
Solution Approach 1:
The patent makes existing hardware components perform multiple functions. The same signal pins that originally handled single group identification now handle dual group identification by switching between two DIP switches. The processing module universally handles both group identifiers through the switching mechanism, eliminating the need for specialized multitasking chips
Solution Approach 2:
The patent creates a redundant copy of the DIP switch circuitry with two separate DIP switches (first and second) and corresponding switches (S1 and S2). This copying approach allows the system to read two different group identifiers sequentially using the same physical pins, achieving enhanced reception capacity without expensive specialized chips
Data Source
AI summary
The main control device comprises a processing module with a switching pin and a plurality of signal pins, a first DIP switch, a second DIP switch, an inverting module, and a first switch and a second switch. The first DIP switch and second DIP switch are respectively connected to the signal pins through first and second signal switches. One end of the inverting module is connected to the processing module. The first switch connects to the first signal switches, the switching pin, the inverting module, and the operating voltage source. The second switch is connected to the second signal switches, the inverting module, and the operating voltage source.