Illumination Lamp System with Automatic UV Switching
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Solution Overview
Problem
Existing ultraviolet light disinfection and sterilization methods face challenges in safely providing ambient lighting while ensuring safety from UV exposure, as both indirect and direct irradiation methods have limitations, including the need for additional equipment and potential harm to humans.
Innovation Solution
An illumination lamp system with automatic switching functionality, incorporating germicidal lighting lamp assemblies featuring LED strips, ultraviolet germicidal light sources, infrared human body sensors, and a control module that synchronizes the emission of UV light with the presence of people, ensuring safe and efficient disinfection and sterilization.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If direct ultraviolet light irradiation method is used for disinfection and sterilization, then the disinfection and sterilization effect is improved, but the harm to human body is worsened
Solution Approach 1:
The patent applies dynamics by making the lighting lamp assembly switchable between different operational states. The control module dynamically transitions the system between: (1) illumination mode with visible light only, (2) sterilization mode with ultraviolet light after a preset time, and (3) emergency illumination mode that immediately activates visible light when motion is detected during sterilization. This dynamic state changes resolve the contradiction by allowing the system to provide effective ultraviolet disinfection when无人 present while preventing harm to humans when they are present.
Solution Approach 2:
The patent implements feedback through the motion detection module that continuously monitors the environment for human presence. When motion is detected during the sterilization phase, the system receives feedback and immediately switches from ultraviolet emission to visible light emission, preventing ultraviolet exposure to humans. This feedback mechanism resolves the contradiction by automatically adjusting the disinfection method based on real-time detection of human presence.
2Object-affected harmful factors
If indirect ultraviolet light irradiation method is used for disinfection and sterilization, then the safety is improved, but the device complexity is worsened
Solution Approach 1:
The patent merges the illumination function and sterilization function into a single integrated lighting lamp assembly. The same lamp structure houses both visible light emitting components and ultraviolet emitting components, eliminating the need for separate air guidance equipment required by indirect irradiation methods. The control module integrates timing control, motion detection, and mode switching functions. This merging resolves the contradiction by achieving safety through intelligent control while avoiding the additional equipment complexity of indirect irradiation systems.
Solution Approach 2:
The lighting lamp assembly is designed with multi-functionality, serving both as an illumination device and a sterilization device. The lamp panel can emit visible light for illumination during daytime or occupied periods, and emit ultraviolet light for sterilization during unoccupied periods. This universal design resolves the contradiction by providing safety through functional versatility without requiring separate dedicated sterilization equipment.
3Productivity
If ultraviolet light is used for disinfection and sterilization, then the disinfection efficiency is improved, but the loss of time is worsened due to safety precautions
Solution Approach 1:
The system applies preliminary action by automatically transitioning to sterilization mode after a preset time delay following illumination mode, without requiring manual intervention. The control module is pre-programmed to switch from visible light to ultraviolet light after the predetermined time period, enabling continuous operation that maximizes disinfection efficiency while maintaining safety through automatic motion detection monitoring during the sterilization phase.
Solution Approach 2:
The system implements periodic action by alternating between illumination mode and sterilization mode based on time scheduling and motion detection. The lamp operates in cycles: illumination during occupied periods, followed by sterilization during unoccupied periods, with automatic switching between modes. This periodic operation resolves the contradiction by maintaining high disinfection efficiency through regular sterilization cycles while minimizing safety concerns through automatic mode transitions.
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
The system effectively expands disinfection areas while ensuring safety by automatically switching between illumination and UV light emission based on human presence, addressing the limitations of traditional methods and providing a safe and efficient disinfection solution.
Implementation Method 1
an infrared human body sensor, fixed on the outermost edge of one of the light guide plates, being actuated to detect infrared light sources within a detection range
Implementation Method 2
after bacteria and viruses are irradiated with ultraviolet light, the structure of deoxyribonucleic acid (DNA) and ribonucleic acid (RNA) at the core of their lives will be directly destroyed by ultraviolet light
Implementation Method 3
a lamp panel, having a plurality of illumination LED strips and at least one ultraviolet germicidal light source arranged on one side
Data Source
AI summary
An illumination lamp system having automatic switching function for sterilization is disclosed. It contains a plurality of germicidal lighting lamp assemblies, a personnel counter, a data receiving indicator, and an ultraviolet indicator. Each germicidal lighting lamp assembly includes a lamp panel, an infrared human body sensor and a control module. The control module includes a power conversion unit, a synchronization interface, a startup circuit, a first microcontroller, and an output and input connection interface. Because the infrared human body sensor can detect the appearance of people in real time, with a synchronous voltage to switch emitting between illumination LED strips and ultraviolet germicidal light sources, in addition to effectively expanding the disinfection area, it can also safely adjust the type of light to achieve the automatic switching function for sterilization.