Method for controlling intensity for a smart RGB public lighting device

Abstract

The invention relates to a method for controlling luminous intensity for a smart public lighting device. A microcontroller interacts with modules, dynamically adjusting the intensity and colour of an RGB LED panel in accordance with data from ambient light sensors and a real-time clock. A control unit, with an array of latching relays, controls the flow of current to the street lamp while ensuring steady states, without the need for a flow of direct current, improving energy efficiency. A power supply unit converts the AC high voltage to DC. This approach offers smart lighting management, optimizing the energy efficiency and durability of the system.

Description

[0001] Intensity control method for an intelligent RGB street lighting device

[0002] Field of invention

[0003] The present invention relates to the lighting device, in particular street lamps equipped with means for controlling the intensity as a function of the ambient lighting.

[0004] Prior art

[0005] US2021219394A1 discloses a lighting apparatus and a method for controlling a lighting apparatus. A power supply capable of providing a certain amount of power is connected to an array of light emitting elements capable of illuminating an area in response to the amount of power provided.

[0006] US2022375397A1 discloses a drive system for controlling a plurality of light-emitting diodes (LEDs). The drive system includes a first driver that provides current to each of the LEDs. The first driver includes a current mirror for the LED current provided to the plurality of LEDs. The drive system also includes a second driver for modulating the current provided to the plurality of LEDs.

[0007] Description:

[0008] The present invention discloses an RGB street lighting control system that efficiently manages the intensity and color of light through a sophisticated control unit. The system uses an array of RGB LEDs in each streetlight, allowing for dynamic adjustment of lighting parameters. The system uses an array of RGB light-emitting diodes in each streetlight, allowing for dynamic adjustment of lighting parameters.

[0009] The control unit, which can operate in automatic mode or in pre-configured mode, interfaces with various modules, including a storage unit, interfaces with various modules, including a storage unit, a real-time clock, sensors, control relays and a power supply unit. The intensity is controlled using a latching relay network that provides two stable states without the need for a continuous flow of current. This is an important factor in saving electrical energy, which is the objective of the present invention. Sensors: Used to detect the intensity of ambient light

[0010] Control unit:

[0011] Microcontroller: o Interfaces with modules, including a storage unit, real-time clock, sensors, and control latching relays. o Runs an algorithm that dynamically adjusts LED intensity and color based on data from configuration parameters, the real-time clock, and ambient light sensors.

[0012] Control Unit: o Uses a latching relay network to control current flow to the streetlight. o Provides steady states without the need for continuous current flow, thus improving energy efficiency.

[0013] Floor lamp: an RGB LED panel

[0014] Power Supply: Supplies the system (Convert high voltage AC to DC)

[0015] Method of implementation

[0016] Automatic mode:

[0017] Uses sensor data to dynamically adjust light intensity and color based on ambient conditions.

[0018] Preset mode:

[0019] Allows users to set specific intensity and color profiles based on the time of day, optimizing lighting for different scenarios.

[0020] The lamp is a matrix of RGB LEDs. The intensity of the light coming out of the lamp is controlled by lighting a percentage of the LEDs according to the pattern below.

[0021] See Figure 1

[0022] There are two types of modes: intensity modes and color modes. Each mode requires a latching relay.

[0023] The result, intensity and color of the light are a combination of the two modes (Intersection)

[0024] The combination is achieved by connecting the anode to one relay (controlling the intensity) and the cathode to another relay (controlling the color). Description of the figures:

[0025] Figure 1 shows the different LED matrix intensity states according to the desired percentages.

[0026] Figure 2: Electrical assembly of LEDs in a matrix with latching relay.

[0027] Figure 3: Different combinations of the two modes (Intersection) color and intensity

[0028] Figure 4: A LED control flowchart according to the preconfigured and automatic usage modes

[0029] Figure 5: Diagram of the public lighting control system

Claims

Claim:

1. An intensity control method for an intelligent public lighting device, comprising the following steps: - Interact, using a microcontroller, with modules including a storage unit, a real-time clock, sensors, and control locking relays. - Execute, by said microcontroller, a dynamic algorithm adjusting the intensity and color of an RGB LED panel integrated in a street lamp according to data from the configuration parameters, the real-time clock and the ambient light sensors. - Use a control unit associated with the microcontroller, which uses a network of interlocking relays to control the flow of current to the lamppost. - Provide, through the control unit, stable states without requiring a direct current flow, thus improving the energy efficiency of the public lighting device.

2. The intensity control method of one of the preceding claims, providing efficient management of light intensity and color in response to changing environmental conditions, thereby improving the durability and overall energy efficiency of the smart street lighting device.

3. A smart street lighting device comprising a microcontroller configured to interact with modules, including a storage unit, a real-time clock, sensors, and control latching relays, said microcontroller being adapted to execute a dynamic algorithm. Said microcontroller of claim 1, being configured to dynamically adjust the intensity and color of an RGB LED panel integrated in a street lamp, based on data from the configuration parameters, the real-time clock, and the ambient light sensors.

Images