Traffic Signal Lamp Self-Detection Power Distribution

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Solution Overview

Problem

Current traffic signal systems face challenges in efficiently detecting and addressing damaged traffic lights, leading to delays in maintenance and disruptions in traffic control.

Innovation Solution

The proposed solution involves a traffic signal lamp and system with integrated light-emitting devices, each comprising a light-emitting element, power module, measuring element, and controller. This setup allows for real-time power distribution and monitoring, enabling continuous operation and detection of abnormalities even when not directly powered.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Loss of time

If traditional traffic light monitoring methods are used (manual reporting by pedestrians), then the system structure remains simple, but the response time to damaged traffic lights is delayed and maintenance efficiency is low

Engineering Contradiction:

Improvemaintenance response timeVSAvoidsystem structure

Core Design Contradiction:

Loss of timeVSDevice complexity

Solution Approach 1:

The traffic signal lamp performs self-detection and self-reporting of its operational status through integrated measuring elements and controllers that automatically monitor power consumption and transmit status information, eliminating the need for manual reporting by pedestrians and enabling automatic maintenance scheduling

Inventive Principle:

Principle #25Self-service

Solution Approach 2:

The system implements continuous feedback loops where measuring elements monitor power consumption parameters, controllers analyze the data to detect abnormalities, and status information is transmitted back to management platforms to trigger timely maintenance responses

Inventive Principle:

Principle #23Feedback

2Measurement precision

If continuous monitoring of all light-emitting devices is implemented, then detection accuracy improves, but power consumption increases

Engineering Contradiction:

Improvedetection accuracyVSAvoidpower consumption

Core Design Contradiction:

Measurement precisionVSUse of energy by moving object

Solution Approach 1:

The power distribution module serves multiple functions: it distributes power to controllers and measuring elements, stores energy in a capacitor, and enables any light-emitting device to power the monitoring system of any other device, eliminating the need for dedicated monitoring power for each device

Inventive Principle:

Principle #6Universality (Multi-functionality)

Solution Approach 2:

The patent combines the power distribution function and the monitoring function into a single integrated system where the power distribution module also serves as the power source for measuring elements and controllers, reducing overall system complexity and power requirements

Inventive Principle:

Principle #5Merging (Combining)

3Reliability

If real-time status detection is implemented, then traffic control reliability improves, but the complexity of power distribution increases

Engineering Contradiction:

Improvetraffic control reliabilityVSAvoidpower distribution complexity

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The power distribution module pre-charges a capacitor with stored energy before any light-emitting device needs to perform monitoring functions, ensuring that power is immediately available for detection and communication operations without requiring complex real-time power conversion

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The capacitor acts as an intermediary energy storage element that decouples the AC power input from the DC power requirements of controllers and measuring elements, simplifying the power distribution architecture by providing a stable DC voltage source without requiring complex switching circuits

Inventive Principle:

Principle #24Intermediary (Mediator)

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

This solution enables continuous monitoring and operation of traffic signal components, reducing downtime and improving traffic management by promptly detecting and reporting any issues with the traffic lights.

Implementation Method 1

The power module is configured to convert an alternating current into a direct current and supplying the direct current to the light-emitting element and the power distribution module

Methodology Applied

Scientific EffectRectification:

Data Source

PatentUS12317395B2Traffic signal lamp, traffic signal system and lamp-state detection method using the same

Publication Date: 2025.05.27 LEOTEK CORP

AI summary

A traffic signal lamp includes a plurality of light-emitting devices. Each light-emitting device includes a light-emitting element, a power distribution module, a power module, a controller and a measuring element. The power module is configured for converting an alternating current (AC) into a direct current (DC) and supplying the DC to the light-emitting element and the power distribution module. The measuring element is electrically coupled to the power distribution module and the light-emitting element. The controller is electrically coupled to the power distribution module and the measuring element. When a selected-one of the light-emitting devices receives the AC, the power distribution modules of the selected-one provides the DC to the controller and the measuring element of the selected-one and the power distribution module of the others of the light-emitting devices.