Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Light-emitting control method, apparatus and system for LED (light emitting diode) lamp

A technology of LED lights and lighting control, applied in the electronic field, can solve the problems of not conforming to the visual characteristics, distracting the driver's attention, and poor user experience

Active Publication Date: 2016-04-27
BEIJING JINGWEI HIRAIN TECH CO INC
View PDF7 Cites 22 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The existing RGB color mode LED lamp control technology sometimes causes the LED lamp to flash. When the LED lamp is lit, adjusted brightness, extinguished or the color is switched, the change of the light will have an obvious sense of step and abruptness, which is not in line with Due to the visual characteristics of the human body, the user experience is poor, and the sudden change of light can easily distract the driver's attention, which may bring safety hazards

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Light-emitting control method, apparatus and system for LED (light emitting diode) lamp
  • Light-emitting control method, apparatus and system for LED (light emitting diode) lamp
  • Light-emitting control method, apparatus and system for LED (light emitting diode) lamp

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0072] see figure 1 , figure 1 It is a flow chart of a method for controlling the light emission of an LED lamp provided by an embodiment of the present invention. Such as figure 1 As shown, the method includes:

[0073] Step S101, receiving a control message;

[0074] Specifically, the control message is received from the vehicle main controller. The vehicle-mounted main controller detects the user's operation, and sends the control message to the controller of the LED light when determining to control the LED light according to its own logic.

[0075] Step S102, analyzing the control message, and determining the control mode and control target value of the LED lamp;

[0076] Specifically, the control modes of the LED lights include lighting mode (from off to on), brightness adjustment mode, extinguishing mode (from on to off) and color adjustment mode.

[0077] Specifically, the control target values ​​include three-color target duty cycles, that is, a red target duty ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a light-emitting control method, apparatus and system for an LED (light emitting diode) lamp. The light-emitting control method comprises the steps of receiving a control message; analyzing the control message; determining a control mode and a control target value of the LED lamp, wherein the control mode of the LED lamp comprises a lightening mode, a luminance regulation mode, an extinguishing mode and a toning mode, and the control target value comprises a three-color target duty ratio; determining a light-emitting gradual change parameter corresponding to the control mode of the LED lamp; calculating a gradual change PWM duty ratio corresponding to the light-emitting gradual change parameter in the toning process of the LED lamp, wherein the value range of the light-emitting gradual change parameter is from 0.005 to 0.05; outputting a PWM (pulse width modulation) signal to an actuator, wherein the duty ratio of the PWM signal is the gradual change PWM duty ratio; and controlling the LED lamp to give out light in a gradual change manner, wherein the frequency of the PWM signal is greater than 100 hertz. According to the light-emitting control method, apparatus and system for the LED lamp, the relatively soft and uniform light emission of the LED lamp can be realized, the emitted lights can better accord with visual characteristics of human body, and the user experience is improved.

Description

technical field [0001] The present invention relates to the field of electronic technology, in particular to a method, device and system for controlling the light emission of an LED lamp. Background technique [0002] At present, RGB color mode LED (Light Emitting Diode, light-emitting diode) lights can be used for intelligent ambient lights of vehicles. RGB color mode LED lights are generally driven by constant current sources, and PWM (PulseWidthModulation, pulse width modulation) is used to realize different colors of ambient lights. and light intensity adjustment. [0003] The existing RGB color mode LED lamp control technology sometimes causes the LED lamp to flash. When the LED lamp is lit, adjusted brightness, extinguished or the color is switched, the change of the light will have an obvious sense of step and abruptness, which is not in line with Due to the visual characteristics of the human body, the user experience is poor, and the sudden change of light can easi...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): H05B33/08H05B44/00
CPCH05B45/00Y02B20/30
Inventor 吴静雅
Owner BEIJING JINGWEI HIRAIN TECH CO INC
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com