Self-Generating Switch Control With Rolling Verification IDs
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Solution Overview
Problem
Conventional self-generating switches lack sufficient security measures in their control messages, failing to meet safety requirements due to simple information content.
Innovation Solution
A self-generating switch equipped with a processor, memory, generator, rectification module, energy storage, voltage output module, and wireless communication module, which generates and sends control messages with a verification identifier that undergoes transformation based on manipulation actions, ensuring secure communication with a receiving terminal.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If an external power supply is used to drive the switch, then the switching operation is reliable, but the device structure becomes complex and cost increases
Solution Approach 1:
The switch control circuit generates its own driving signal by detecting the voltage across its own on-state resistance, eliminating the need for external power supply or control signals. The circuit serves itself by using its inherent electrical characteristics to generate the switching command.
Solution Approach 2:
The patent replaces external electrical control mechanisms with an intrinsic electrical detection mechanism. Instead of using external power supplies and control circuits, the system uses the voltage drop across the MOSFET's on-resistance to generate the gate drive signal, substituting a simple electrical detection system for complex external control.
2Reliability
If an external power supply is used to drive the switch, then the switching operation is reliable, but the cost increases
Solution Approach 1:
The switch control circuit generates its own driving signal by detecting the voltage across its own on-state resistance, eliminating the need for external power supply or control signals. The circuit serves itself by using its inherent electrical characteristics to generate the switching command.
Solution Approach 2:
The patent uses simple, low-cost components such as resistors and diodes to create the control circuit, replacing expensive external power supply units and complex control ICs with basic passive components that can be easily manufactured and replaced.
3Adaptability or versatility
If a control signal line is added to enable self-control, then the receiving end can be controlled independently, but the number of components increases
Solution Approach 1:
The switch control circuit performs multiple functions using the same components: it detects the on-state voltage, generates the gate drive signal, and provides the switching control. This multi-functionality eliminates the need for separate control signal lines and external control circuits.
Solution Approach 2:
The patent merges the voltage detection function, signal generation function, and switching control function into a single integrated control circuit at the transmitting end, eliminating the need for separate control signal lines and reducing the overall number of components in the system.
Data Source
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AI summary
The present disclosure provides a switch control method, a receiving terminal control method, a self-generating switch, and a receiving terminal, the switch control method comprising: the processor generating and sending a corresponding current control message to a receiving terminal by the wireless communication module, such that the receiving terminal verifies whether a relationship between a current verification identifier in the current control message and a stored historical verification identifier matches a pre-set transformation rule of the current verification identifier, and executing a control event corresponding to current manipulation information when the relationship matches the transformation rule; in one depression manipulation action and one rebound manipulation action which occur successively, for at least one of the manipulation actions, the current verification identifier being also read from the memory, and the current verification identifier being transformed and updated from a first numerical value to a second numerical value with a preset transformation rule, the first numerical value being different from the second numerical value.