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Safety monitoring and lighting device for two-order type light emitting diode

A light-emitting diode and lighting device technology, which is applied in the field of two-stage light-emitting diode safety monitoring lighting devices, can solve the problems of high production cost and complexity, and achieve the effect of saving energy

Inactive Publication Date: 2013-01-16
陈家德
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Especially in the driving of light-emitting diodes, it is still a complex and high-cost technology

Method used

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  • Safety monitoring and lighting device for two-order type light emitting diode
  • Safety monitoring and lighting device for two-order type light emitting diode
  • Safety monitoring and lighting device for two-order type light emitting diode

Examples

Experimental program
Comparison scheme
Effect test

no. 1 example

[0043] refer to figure 1, which shows the circuit structure diagram of the two-stage LED security monitoring lighting device according to the first embodiment of the present invention. The two-stage LED safety monitoring lighting device (lighting device for short) 100 includes a power management unit 110 , a photosensitive switch control unit 120 , an action detection unit 130 , a load and power control unit 140 and a light emitting unit 150 . The power management unit 110 is used to provide power required for system operation, and its structure includes, for example, an existing AC / DC voltage converter (AC / DC voltage converter). The photosensitive switch control unit 120 is, for example, a photoresistor, which is coupled to the load and power control unit 140 for detecting ambient brightness to determine day or night. The action detection unit 130 is, for example, a passive infrared sensor (Passive Infrared Sensor, PIR), which is coupled to the load and power control unit 14...

no. 2 example

[0051] Refer again figure 1 In addition, the brightness change of the light emitting unit 150 can also generate at least two kinds of brightness by adjusting the number of light source loads turned on. In this embodiment, the lighting device 100 can generate low-order brightness and high-order brightness by turning on some or all of the LEDs.

[0052] Please also refer to Figure 3A , which is a schematic circuit diagram of the lighting device 100 according to the second embodiment of the present invention. Figure 3A and Figure 2A The main difference lies in the light emitting unit 350, which includes three light emitting diodes L1-L3 and NMOS transistors Q1, Q2. The LEDs L1 - L3 are connected in series with the transistor Q1 and connected between the DC power supply and the constant current control circuit 310 . In addition, the transistor Q2 is connected in parallel with both ends of the light emitting diodes L2 and L3. The gates of the transistors Q1 and Q2 are respe...

no. 3 example

[0059] Refer again figure 1 The light emitting unit 150 may also include a phase angle controller and one or more parallel-connected AC light-emitting diodes, and the phase-angle controller is coupled between the one or more parallel-connected AC light-emitting diodes and an AC power source. In this embodiment, the load and power control unit 140 can adjust the average electric power of the light emitting unit 150 through the phase angle controller, so as to generate changes in low-order brightness and high-order brightness.

[0060] Please refer to Figure 4A , which is a schematic circuit diagram of the lighting device 100 according to the third embodiment of the present invention. Figure 4AThe main difference from FIG. 3 is that the light source load of the light emitting unit 450 is an AC light emitting diode ACLED coupled to an AC power source, and the light emitting unit 450 also includes a phase angle controller 451 . The phase angle controller 451 includes a thyrist...

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PUM

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Abstract

The invention discloses a safety monitoring and lighting device for a two-order type light emitting diode. At night, a light emitting diode light source is automatically turned on and displays low-brightness lighting; and when an action detector detects invasion action, the light emitting diode light source is immediately switched from low-order lighting to high-order lighting and is recovered to low-order lighting to save energy after short delay time. The safety monitoring and lighting device comprises a power management unit, a photosensitive switch control unit, an action detecting unit, a load and power control unit and a luminous unit, wherein the luminous unit consists of one or more light emitting diodes and can be determined to be switched on or switched off according to the photosensitive switch control unit; and when the action detection unit detects that someone invades, the brightness can be greatly improved immediately by adjusting current or the number of conducted loads, so that a function of warning an invader can be realized.

Description

technical field [0001] The invention relates to a lighting device, and in particular to a two-stage light-emitting diode safety monitoring lighting device with high and low order brightness. Background technique [0002] Various types of light sources such as incandescent lamps, fluorescent lamps, halogen lamps, and light-emitting diodes are existing lighting devices. Outdoor lighting devices usually use photoresistors to automatically start the light source of the lamp, which is called Photo-Control Mode (PC mode for short). The lighting of the lamp is turned off or switched to a lower brightness, which is called the power-saving working mode (Power-Saving Mode, referred to as PS mode). In the energy-saving mode, the motion detector is often used. Lights up for a short period of time, then returns to energy-saving mode. Whether it is to automatically start the lighting by detecting the brightness of the background light, timing full brightness, and detecting personnel act...

Claims

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Application Information

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IPC IPC(8): H05B37/02
Inventor 陈家德
Owner 陈家德