Wireless Light-Emitting Device with Internal Timer for Synchronized Control

Solution Overview

Problem

Coordinating the timing of thousands to tens of thousands of penlights in a concert hall to achieve a unified visible effect is challenging, and existing technologies increase wireless channel occupation due to frequent short lighting control signals.

Innovation Solution

A light-emitting device with a wireless communication unit, a light-emitting unit, and a control unit that switches between signal-received timing control and internal timer control based on a predetermined light emission period, allowing for coordinated turn-on and turn-off timings and reducing wireless traffic.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If penlights are controlled to blink individually to improve visible effect, then visual coordination is improved, but wireless channel occupation increases due to frequent control signals

Engineering Contradiction:

Improvecoordination of light emission timingVSAvoidwireless traffic volume

Core Design Contradiction:

ReliabilityVSQuantity of substance

Solution Approach 1:

The master device transmits light emission timing information to slave devices in advance. Slave devices store this information and execute it autonomously using their internal timers, eliminating the need for continuous real-time control signals and reducing wireless traffic while maintaining synchronized blinking coordination.

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

Slave devices are equipped with internal timers that autonomously control light emission based on pre-received timing information. This self-service mechanism allows slave devices to operate independently without requiring continuous master device intervention, significantly reducing wireless communication overhead while maintaining synchronized operation.

Inventive Principle:

Principle #25Self-service

2Measurement precision

If light emission timing is controlled by receiving signals in real-time, then coordination accuracy is improved, but wireless channel occupation increases

Engineering Contradiction:

Improvetiming coordination precisionVSAvoidwireless traffic volume

Core Design Contradiction:

Measurement precisionVSQuantity of substance

Solution Approach 1:

The master device transmits light emission timing information to slave devices in advance. Slave devices store this information and execute it autonomously using their internal timers, eliminating the need for continuous real-time control signals and reducing wireless traffic while maintaining synchronized blinking coordination.

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The system uses a master-slave architecture where the master device provides timing information and slave devices execute it autonomously. This feedback mechanism ensures that all slave devices synchronize their light emission based on the master's timing information, achieving precise coordination without continuous real-time signaling.

Inventive Principle:

Principle #23Feedback

3Quantity of substance

If short light emission periods are used to reduce traffic, then wireless channel occupation is reduced, but coordination difficulty increases

Engineering Contradiction:

Improvewireless traffic volumeVSAvoidcoordination complexity

Core Design Contradiction:

Quantity of substanceVSDevice complexity

Solution Approach 1:

Slave devices are equipped with internal timers that autonomously control light emission based on pre-received timing information. This self-service mechanism allows slave devices to operate independently without requiring continuous master device intervention, significantly reducing wireless communication overhead while maintaining synchronized operation.

Inventive Principle:

Principle #25Self-service

Solution Approach 2:

The master device transmits light emission timing information to slave devices in advance. Slave devices store this information and execute it autonomously using their internal timers, eliminating the need for continuous real-time control signals and reducing wireless traffic while maintaining synchronized blinking coordination.

Inventive Principle:

Principle #10Preliminary action

Data Source

PatentUS9661724B2Light-emitting device, method of controlling light-emitting device, and program

Publication Date: 2017.05.23 SONY GROUP CORP

AI summary

There is provided a light-emitting device including a wireless communication unit that performs wireless communication with another device, a light-emitting unit that emits light, and a control unit that performs control by switching between a mode in which the light emission of the light-emitting unit is controlled in accordance with a timing at which a signal is received by the wireless communication unit and a mode in which the light emission of the light-emitting unit is controlled in accordance with an internal timer based on a light emission timing included in a signal received from the other device by the wireless communication unit.