Multiway Switching Device with Wireless Relay Control
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Solution Overview
Problem
Conventional three-way switches require all switches to be replaced in case of a device failure and are position-dependent, lacking advanced capabilities for home automation.
Innovation Solution
A multiway switching device comprising a relay, manual switch, and wireless device that allows RF communication, enabling control of electrical loads from multiple locations and reporting status, with the ability to function as either master or slave and simplify installation by replacing only one switch.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional three-way switches are used, then the switching function is achieved, but all switches must be replaced in case of device failure
Solution Approach 1:
The patent divides the three-way switch system into independent modular units, each containing its own relay and control circuitry. This segmentation allows individual switches to be replaced independently rather than requiring replacement of all switches in the system, thereby improving ease of repair while maintaining reliability.
Solution Approach 2:
The patent introduces a communication bus and control signals as intermediaries between switches and the load. This intermediary system enables one switch to control the load even if another switch in the series fails, as the control signals can be routed through alternative paths via the communication bus.
2Adaptability or versatility
If conventional three-way switches are used, then basic switching is achieved, but position-dependent operation limits flexibility
Solution Approach 1:
The patent implements universal switches that can function as either master or slave positions through software configuration rather than hardware differentiation. Each switch contains a microcontroller that can be programmed to operate in different modes, allowing the same physical device to adapt to various installation configurations without requiring specialized components for different positions.
Solution Approach 2:
The patent introduces dynamic reconfigurability where switch roles can be changed at runtime through communication protocols. The switches can dynamically adjust their behavior based on system state, allowing flexible reassignment of master/slave positions without physical reconfiguration or complex installation procedures.
3Adaptability or versatility
If conventional three-way switches are used, then simple control is achieved, but advanced home automation capabilities are lacking
Solution Approach 1:
The patent combines multiple functions into a single integrated switch unit: relay control, communication interface, status monitoring, and power management are merged into one device. This consolidation provides advanced home automation capabilities including remote control, status reporting, and energy monitoring without proportionally increasing system complexity, as shared resources are utilized across all switch units.
Solution Approach 2:
The patent implements feedback mechanisms where switches report their status, power consumption, and operational state back to a central controller or wireless network. This feedback capability enables advanced automation features such as remote monitoring, diagnostic reporting, and intelligent control while maintaining relatively simple local switch hardware through the use of standard communication protocols.
Data Source
AI summary
A multiway switching device may comprise a wireless device in communication with a relay and a manual switch of the device. A toggle state of the relay may be indicative of an electrical configuration between conductors and rectifier circuits of the multiway switching device. The wireless device may receive, from the manual switch or from an external device, a signal indicative of a modification to the toggle state of the relay. Based on the signal, the wireless device may cause the modification to the toggle state of the relay. The wireless device may cause output of a status signal indicative of the modification to the toggle state of the relay.