Wireless Control Device Mode Switching for Power Management

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Solution Overview

Problem

Existing wireless communication systems face challenges in maintaining remote power supply control over wireless communication devices, particularly when the connection between the control device and the communication device is cut off, leading to difficulties in reestablishing the connection and controlling the power supply.

Innovation Solution

A control device and wireless communication device system that switches between access point and station modes, using sleep and wake-up commands to manage power supply, allowing for remote control even when the connection is cut off, by employing a control-side operation switcher, power supply controller, and communicator to send and receive commands over a wireless local area network.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If the control device and wireless communication device maintain continuous connection for remote power supply control, then the reliability of power control is improved, but the power consumption increases

Engineering Contradiction:
Improvereliability of remote power controlVSAvoidpower consumption of wireless communication device
Core Design Contradiction:
ReliabilityVSUse of energy by moving object

Solution Approach 1:

The control device sends a wake-up command before the wireless communication device needs to perform power control operations, preparing the device in advance. This allows the device to be in a ready state only when necessary, reducing unnecessary power consumption while maintaining control reliability.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The wireless communication device alternates between sleep mode and active mode periodically. During sleep mode, power consumption is minimized while maintaining the ability to receive wake-up commands. When activated, the device performs power control operations and then returns to sleep mode, creating a periodic cycle that balances reliability and energy efficiency.

Inventive Principle:
Principle #19Periodic action

2Loss of energy

If the wireless communication device operates in sleep mode to reduce power consumption, then the power saving is improved, but the ability to receive control commands deteriorates

Engineering Contradiction:
Improvepower saving in sleep modeVSAvoidability to receive control commands
Core Design Contradiction:
Loss of energyVSReliability

Solution Approach 1:

The functional capabilities of the wireless communication device are segmented into different operational modes: sleep mode for power saving and active mode for receiving and processing control commands. This segmentation allows the device to optimize power consumption by activating only the necessary functions at appropriate times while maintaining overall system reliability.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The control device issues wake-up commands in advance to transition the wireless communication device from sleep mode to active mode before control operations are needed. This preliminary action ensures the device is ready to receive commands without being continuously active, balancing power saving with command reception capability.

Inventive Principle:
Principle #10Preliminary action

3Ease of operation

If the control device switches between access point mode and station mode to maintain connection after power restoration, then the ease of reconnection is improved, but the device complexity increases

Engineering Contradiction:
Improveease of reconnection after power restorationVSAvoidcomplexity of mode switching mechanism
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The control device dynamically switches between access point mode and station mode based on its operational state and connection requirements. After power restoration, the device can transition to station mode to actively seek and reestablish connections with wireless communication devices, improving reconnection ease. This dynamic adaptability is managed through control logic that adds functional complexity but enables flexible operation.

Inventive Principle:
Principle #15Dynamics

Data Source

PatentUS11818659B2Control device, wireless communication device, wireless system, and power supply control method
Publication Date: 2023.11.14 ICOM INC
  • US11818659B2 patent drawing
  • US11818659B2 patent drawing
  • US11818659B2 patent drawing

AI summary

A wireless system includes a control device and a wireless communication device. The control device switches between a control-side access point mode and a control-side station mode. In the control-side access point mode, the control device receives a connection request from the wireless communication device to establish a connection and, in the control-side station mode sends a connection request to the wireless communication device to establish a connection. The control device sends a sleep command or a wake-up command to the wireless communication device with which the connection is established.