Direct current lighting system

Abstract

The present application relates to a kind of direct current lighting system, including LED control device and multiple lighting sub-equipment, the LED control device is connected with multiple lighting sub-equipment;The LED control device includes input rectification filter circuit, AC-DC conversion circuit and group control control module, the input end of the input rectification filter circuit is connected with AC-DC power supply, the AC-DC conversion circuit is connected with input rectification filter circuit, the group control control module is connected with AC-DC conversion circuit, for carrying out group control function control.Adopted the direct current lighting system of the present application, to realize the connection method of combination of group control and single node control in same direct current lighting system, satisfy better lighting control demand.Through the present application, group control function can be provided in the equipment of realizing basic environmental lighting in area, and separate lighting equipment control function is provided in key lighting area as needed, can better satisfy the special demand in lighting system design.

Description

Technical Field

[0001] This invention relates to the field of intelligent lighting fixtures, and more particularly to the field of DC lighting, specifically to a DC lighting system. Background Technology

[0002] An application diagram of an existing DC lighting system is attached. Figure 1 and attached Figure 2 As shown. In existing DC lighting systems, DC voltage is typically provided by batteries, switching power supplies, DC controllers, etc., and each DC luminaire node is connected through rails or wiring to provide power to them, enabling group control functions such as lighting and dimming of the luminaires, such as DC rails, light strips, and linear lights.

[0003] An application diagram of an existing DC lighting system is attached. Figure 1 As shown, the DC power supply provides DC voltage to each sub-device in the system. Dimming and color adjustment control rely on the control devices in each sub-device.

[0004] An application diagram of an existing DC lighting system is attached. Figure 2 As shown, the DC power supply provides DC voltage and has a built-in dimming control device to supply all sub-equipment in the system. Dimming and color adjustment are controlled uniformly through the dimming control device, and single-node control is not possible. Summary of the Invention

[0005] The purpose of this invention is to overcome the shortcomings of the prior art and provide a DC lighting system that is easy to control, has diverse functions, and is widely applicable.

[0006] To achieve the above objectives, the DC lighting system of the present invention is as follows: The main feature of this DC lighting system is that it includes an LED control device and multiple lighting sub-devices, with the LED control device connected to the multiple lighting sub-devices. The LED control device includes an input rectifier and filter circuit, an AC-DC conversion circuit, and a group control module. The input terminal of the input rectifier and filter circuit is connected to an AC-DC power supply, the AC-DC conversion circuit is connected to the input rectifier and filter circuit, and the group control module is connected to the AC-DC conversion circuit for group control functions.

[0007] Preferably, the LED control device includes an LED+ interface, an LED- interface, and an LED-DIM (1, 2, ..., n) interface. The LED+ interface, LED-DIM (1, 2, ..., n) interface, and LED- interface are all connected to multiple lighting sub-devices. The LED+ interface provides positive power to the lighting sub-devices. The LED-DIM (1, 2, ..., n) interface provides multi-channel group control loop function for the lighting sub-devices. The LED- interface provides negative power to the lighting sub-devices. The LED control device converts the input voltage into DC voltage and provides it to the lighting sub-devices.

[0008] Preferably, the lighting sub-device includes a single-color temperature lighting sub-device, a lighting sub-device with built-in detection circuitry, and a lighting sub-device with built-in single-lamp control module. The single-color temperature lighting sub-device is connected to the LED+ and LED-DIM interfaces of the LED control device to realize the switching on and off of the lighting and brightness adjustment. The lighting sub-device with built-in detection circuitry is connected to the LED+, LED-DIM, and LED- interfaces of the LED control device, and detects the LED-DIM dimming signal through the built-in circuitry to control the DC-DC conversion circuit, thereby realizing the switching on and off of the lighting and brightness adjustment. The lighting sub-device with built-in single-lamp control module is connected to the LED+ and LED- interfaces of the LED control device, and controls the DC-DC conversion circuit through the built-in single-lamp control module to independently control the switching on and off of the lighting and brightness adjustment.

[0009] Preferably, the lighting sub-device includes a dual-color temperature lighting sub-device, a dual-color temperature lighting sub-device with built-in detection circuitry, and a dual-color temperature lighting sub-device with built-in single-lamp control module. The LED control device includes an LED+ interface, an LED- interface, an LED-C interface, and an LED-W interface. The LED+ interface, LED- interface, LED-C interface, and LED-W interface are all connected to multiple lighting sub-devices. The dual-color temperature lighting sub-device is connected to the LED+, LED-C, and LED-W interfaces of the LED control device, and is used to realize the switching, brightness adjustment, and color temperature adjustment of the lighting through group control operation; the dual-color temperature lighting sub-device with built-in detection circuit is connected to the LED+, LED-W, LED-C, and LED- interfaces of the LED control device, and is used to detect the LED-DIM dimming signal through the built-in circuit, control the DC-DC conversion circuit, and realize the switching, brightness adjustment, and color temperature adjustment of the lighting; the dual-color temperature lighting sub-device with built-in single-lamp control module is connected to the LED+ and LED- interfaces, and is used to control the DC-DC conversion circuit through the built-in single-lamp control module, and realize the individual control of the switching and brightness adjustment of the lighting.

[0010] The DC lighting system of this invention employs a connection method that combines group control and single-node control within the same DC lighting system, thereby meeting better lighting control requirements. This invention allows for group control functionality within devices providing basic ambient lighting within a region, and provides individual lighting device control functionality in key lighting areas as needed, better meeting the specific needs of lighting system design. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of a system based on existing technology.

[0012] Figure 2 This is another schematic diagram of a system based on existing technology.

[0013] Figure 3 This is a schematic diagram of the DC lighting system of the present invention.

[0014] Figure 3-1 This is a schematic diagram illustrating the technical principle of the DC lighting system of the present invention.

[0015] Figure 4 This is a schematic diagram of the structure of a first embodiment of the DC lighting system of the present invention.

[0016] Figure 4-1 This is a schematic diagram illustrating the technical principle of a first embodiment of the DC lighting system of the present invention.

[0017] Figure 5 This is a schematic diagram of a second embodiment of the DC lighting system of the present invention.

[0018] Figure 5-1 This is a schematic diagram illustrating the technical principle of a second embodiment of the DC lighting system of the present invention. Detailed Implementation

[0019] To more clearly describe the technical content of the present invention, the following description is provided in conjunction with specific embodiments.

[0020] The DC lighting system of the present invention includes an LED control device and multiple lighting sub-devices. The LED control device is connected to the multiple lighting sub-devices. The LED control device includes an input rectifier and filter circuit, an AC-DC conversion circuit, and a group control module. The input terminal of the input rectifier and filter circuit is connected to an AC-DC power supply. The AC-DC conversion circuit is connected to the input rectifier and filter circuit. The group control module is connected to the AC-DC conversion circuit and is used for group control function control.

[0021] In a preferred embodiment of the present invention, the LED control device includes an LED+ interface, an LED- interface, and an LED-DIM (1, 2, ..., n) interface. The LED+ interface, LED-DIM (1, 2, ..., n) interface, and LED- interface are all connected to multiple lighting sub-devices. The LED+ interface provides positive power to the lighting sub-devices. The LED-DIM (1, 2, ..., n) interface provides multi-channel group control loop function for the lighting sub-devices. The LED- interface provides negative power to the lighting sub-devices. The LED control device converts the input voltage into DC voltage and provides it to the lighting sub-devices.

[0022] In a preferred embodiment of the present invention, the lighting sub-device includes a single-color temperature lighting sub-device, a lighting sub-device with built-in detection circuitry, and a lighting sub-device with built-in single-lamp control module. The single-color temperature lighting sub-device is connected to the LED+ and LED-DIM interfaces of the LED control device to realize the switching on and off of the lighting and brightness adjustment. The lighting sub-device with built-in detection circuitry is connected to the LED+, LED-DIM, and LED- interfaces of the LED control device. It detects the LED-DIM dimming signal through the built-in circuitry and controls the DC-DC conversion circuit to realize the switching on and off of the lighting and brightness adjustment. The lighting sub-device with built-in single-lamp control module is connected to the LED+ and LED- interfaces of the LED control device. It controls the DC-DC conversion circuit through the built-in single-lamp control module to independently control the switching on and off of the lighting and brightness adjustment.

[0023] In a preferred embodiment of the present invention, the lighting sub-device includes a dual-color temperature lighting sub-device, a dual-color temperature lighting sub-device with built-in detection circuitry, and a dual-color temperature lighting sub-device with built-in single-lamp control module. The LED control device includes an LED+ interface, an LED- interface, an LED-C interface, and an LED-W interface. The LED+ interface, LED- interface, LED-C interface, and LED-W interface are all connected to multiple lighting sub-devices. The dual-color temperature lighting sub-device is connected to the LED+, LED-, and LED-C interfaces of the LED control device, and is used to realize the switching, brightness adjustment, and color temperature adjustment of the lighting through group control operation; the dual-color temperature lighting sub-device with built-in detection circuit is connected to the LED+, LED-W, LED-C, and LED- interfaces of the LED control device, and is used to detect the LED-DIM dimming signal through the built-in circuit, control the DC-DC conversion circuit, and realize the switching, brightness adjustment, and color temperature adjustment of the lighting; the dual-color temperature lighting sub-device with built-in single-lamp control module is connected to the LED+ and LED- interfaces, and is used to control the DC-DC conversion circuit through the built-in single-lamp control module, and realize the individual control of the switching and brightness adjustment of the lighting.

[0024] In a specific embodiment of the present invention, a hybrid control method for a DC lighting system is disclosed. This method combines group control and single-node control of lighting equipment within the same DC lighting system, enabling the DC lighting system to achieve diverse functions, including basic group control lighting and accent lighting.

[0025] In the DC lighting system designed using this invention, a bus DC voltage can be provided by batteries, switching power supplies, DC controllers, etc., and the LED control device has a built-in control module for group control functions. Each sub-lighting device node is connected via rails or wiring to provide it with power. Lighting devices requiring single-node control also have independent control modules, simultaneously achieving group control and single-node control of the lamps. Figure 3 and Figure 3-1 As shown.

[0026] like Figure 3 and Figure 3-1 As shown, the LED control device provides DC power to the lighting system and has a built-in control circuit for group control functions. LED+ provides positive power to the lighting sub-device (LAMP), LED-DIM (1, 2…n) provides multi-channel group control loop function for the lighting sub-device (LAMP), and LED- provides negative power to the lighting sub-device (LAMP).

[0027] like Figure 3 and Figure 3-1 As shown, when the lighting sub-equipment (LAMP-A) type equipment is connected to LED+, LED-DIM1, and LED-DIM2 in the system, group control dual-channel dimming or dimming and color adjustment control can be realized.

[0028] like Figure 3 and Figure 3-1 As shown, dimming control can be achieved by connecting the lighting sub-equipment (LAMP-B) to LED+, LED-DIM1 or LED-DIM2 in the system.

[0029] like Figure 3 and Figure 3-1 As shown, lighting sub-equipment (LAMP-C) devices can be connected to LED+ and LED- in the system, and have a built-in communication circuit module to realize single-node dimming and dimming / color adjustment control functions.

[0030] like Figure 3 and Figure 3-1 As shown, when the lighting sub-equipment (LAMP-D) type equipment is connected to LED+, LED-DIM1, LED-DIM2, and LED- in the system, group control dual-channel dimming or dimming and color adjustment control can be realized.

[0031] like Figure 3and Figure 3-1 As shown, when a lighting sub-equipment (LAMP-F) is connected to the LED+, LED-DIM1 or LED-DIM2 group control loop in the system, or LED-, single-node dimming control can be achieved.

[0032] like Figure 3 and Figure 3-1 As shown, the more LED-DIM channels the DC power supply and controller output, the more channel group control functions can be realized. For example, it can easily realize functions such as dimming, dimming and color adjustment, warm and cool color temperature and RGB color control of lighting sub-devices (LAMP).

[0033] For example, in existing typical residential scenarios, the low-voltage light strip equipment in the living room uses a low-voltage group control scheme, which cannot achieve single-lamp control. By adopting the implementation method of this invention, other lighting equipment such as downlights and spotlights can be connected to the low-voltage light strip system, realizing a combination of group control and single-node control, and meeting the lighting needs of key areas and basic lighting in the living room, without the need to provide separate power to downlights and spotlights according to the existing scheme.

[0034] For example, in an office setting, the implementation method of this invention allows for the use of a low-voltage group control scheme for basic lighting fixtures in the office, while single-node control is used for office workstations. By combining group control with single-node control, the needs for energy conservation and emission reduction as well as good ambient lighting in the office setting can be met, resulting in a better lighting experience.

[0035] For example, in commercial settings, the implementation method of this invention allows for the use of low-voltage group control for basic lighting fixtures in commercial environments, while key exhibition booths can be controlled by a single node. By combining group control with single-node control, the needs for energy conservation and emission reduction as well as good ambient lighting in commercial environments can be met, resulting in a better user lighting experience and exhibit effects.

[0036] The present invention has the following embodiments, with Embodiment 1 as described above. Figure 4 and Figure 4-1 As shown: The system equipment consists of an LED control device (with power conversion and regulation control functions), a single-color temperature lighting sub-equipment LAMP-A, a point light source lighting sub-equipment LAMP-B, and a point light source lighting sub-equipment LAMP-C.

[0037] The LED control device converts the grid input voltage into low DC voltage to supply the downstream lighting sub-equipment. This LED controller is equipped with a group control module for controlling group control operations. The output PWM signal controls the power transistor Q1 to achieve the switching, dimming, and other functions of the group-controlled equipment.

[0038] The single-color temperature lighting sub-equipment LAMP-A is connected to the LED+ and LED- DIM circuits at the output of the LED control device, and can be controlled by a group to realize the switching on and off of the lighting and the adjustment of brightness.

[0039] The LAMP-B type of point light source lighting sub-equipment connects to the output terminals LED+, LED-DIM, and LED- of the LED control device. It detects the ED-DIM dimming signal through built-in circuitry, controls the DC-DC conversion circuit, and realizes the switching on and off of the lighting and the adjustment of brightness.

[0040] The LAMP-C type of point light source lighting sub-equipment connects to the LED+ and LED- output terminals of the LED control device. It controls the DC-DC conversion circuit through the built-in single lamp control module, and can independently control the switching on and off of the lighting and adjust the brightness.

[0041] The adjustment control signals and control interface of this system are not specifically limited and depend on actual needs. The adjustment control signals include, but are not limited to: switches, adjustable resistors, PLC power line carrier, DALI, 0-10V, 1-10V, wireless communication (433m, Zigbee, Bluetooth, WiFi), etc.

[0042] The maximum total power of this system depends on the current carrying capacity of the wiring and the power conversion supply capacity of the LED control device. If necessary, it can be used in parallel to increase the power (depending on the power support capacity of the LED control device).

[0043] Example 2 is as above. Figure 5 and Figure 5-1 As shown: The system equipment consists of an LED control device (with power conversion and regulation control functions), dual-color temperature lighting sub-equipment type LAMP-A, dual-color temperature lighting sub-equipment type LAMP-B, and point light source lighting sub-equipment type LAMP-C.

[0044] The LED control device converts the grid input voltage into low DC voltage to supply the downstream lighting sub-equipment. This LED controller is equipped with a group control module for controlling group control operations. The output PWM signal controls the power transistors Q1 and Q2 to realize the switching, dimming, and color temperature adjustment of the group-controlled equipment.

[0045] The dual-color temperature lighting sub-equipment LAMP-A connects to the LED+, LED-C, and LED-W output terminals of the LED control device, enabling group control operations to switch the lighting on / off, adjust brightness, and adjust color temperature.

[0046] The dual-color temperature lighting sub-equipment LAMP-B connects to the LED control device output terminals LED+, LED-C, LED-W, and LED-. It detects the LED-DIM dimming signal through built-in circuitry and controls the DC-DC conversion circuit to realize lighting switching, brightness adjustment, and color temperature adjustment.

[0047] The dual-color temperature lighting sub-equipment LAMP-C connects to the LED+ and LED- output terminals of the LED control device. It controls the DC-DC conversion circuit through the built-in single-lamp control module to achieve individual control of the lighting switch and brightness adjustment.

[0048] The adjustment control signals and control interface of this system are not specifically limited and depend on actual needs. The adjustment control signals include, but are not limited to: switches, adjustable resistors, PLC power line carrier, DALI, 0-10V, 1-10V, wireless communication (433m, Zigbee, Bluetooth, WiFi), etc.

[0049] The maximum total power of this system depends on the current carrying capacity of the wiring and the power conversion supply capacity of the LED control device. If necessary, it can be used in parallel to increase the power (depending on the power support capacity of the LED control device).

[0050] The DC lighting system disclosed in this invention enables a method that combines group control and single-node control of lighting equipment within the same DC lighting system.

[0051] This system has a unified DC power supply method and is connected to various lighting-related sub-equipment through wiring or track systems.

[0052] This system includes one or more main control devices, which simultaneously provide group control loop control capability and DC circuit power supply capability to each sub-device of the system.

[0053] The number of channels in the group control loop of this system is designed according to actual needs. Single-channel, dual-channel, and multi-channel systems are all within the protection scope of this invention.

[0054] The sub-devices of the system are selected according to actual needs, without fixed access order or category requirements.

[0055] The adjustment and control methods and control interface of this DC lighting system are not specifically limited and can be designed according to actual needs. The adjustment and control signals include, but are not limited to: switches, adjustable resistors, power line carrier, DALI, 0-10V, 1-10V, wireless communication (433m, Zigbee, Bluetooth, WiFi), etc.

[0056] The maximum total power of this system depends on the current carrying capacity of the wiring and the power conversion supply capacity of the LED control device. It can be used in parallel to expand the power (depending on the power capacity of the LED control device power supply or DC source).

[0057] The input and output voltages of this DC lighting system are specified according to actual design requirements. The operating voltages of different systems do not affect the rights of this patent (e.g., common DC voltages: 12VDC, 24VDC, 36VDC, 48VDC, 60VDC, 120VDC, etc.).

[0058] For the specific implementation scheme of this embodiment, please refer to the relevant descriptions in the above embodiments, which will not be repeated here.

[0059] It is understood that the same or similar parts in the above embodiments can be referred to each other, and the contents not described in detail in some embodiments can be referred to the same or similar contents in other embodiments.

[0060] It should be noted that in the description of this invention, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Furthermore, in the description of this invention, unless otherwise stated, "a plurality of" means at least two.

[0061] In the description of this specification, references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0062] The DC lighting system of this invention employs a connection method that combines group control and single-node control within the same DC lighting system, thereby meeting better lighting control requirements. This invention allows for group control functionality within devices providing basic ambient lighting within a region, and provides individual lighting device control functionality in key lighting areas as needed, better meeting the specific needs of lighting system design.

[0063] In this specification, the invention has been described with reference to specific embodiments thereof. However, it will be apparent that various modifications and variations can be made without departing from the spirit and scope of the invention. Therefore, the specification and drawings should be considered illustrative rather than restrictive.

Claims

1. A DC lighting system, characterized in that, The system includes an LED control device and multiple lighting sub-devices. The LED control device is connected to the multiple lighting sub-devices. The LED control device includes an input rectifier and filter circuit, an AC-DC conversion circuit, and a group control module. The input terminal of the input rectifier and filter circuit is connected to an AC and DC power supply. The AC-DC conversion circuit is connected to the input rectifier and filter circuit. The group control module is connected to the AC-DC conversion circuit and is used for group control function control.

2. The DC lighting system according to claim 1, characterized in that, The LED control device includes an LED+ interface, an LED- interface, and an LED-DIM (1, 2, ..., n) interface. Each of these interfaces is connected to multiple lighting sub-devices. The LED+ interface provides positive power to the lighting sub-devices. The LED-DIM (1, 2, ..., n) interface provides multi-channel group control loop functionality for the lighting sub-devices. The LED- interface provides negative power to the lighting sub-devices. The LED control device converts the input voltage into DC voltage and supplies it to the lighting sub-devices.

3. The DC lighting system according to claim 2, characterized in that, The lighting sub-device includes a single-color temperature lighting sub-device, a lighting sub-device with built-in detection circuitry, and a lighting sub-device with built-in single-lamp control module. The single-color temperature lighting sub-device is connected to the LED+ and LED-DIM interfaces of the LED control device to realize the switching on and off of the lighting and brightness adjustment. The lighting sub-device with built-in detection circuitry is connected to the LED+, LED-DIM, and LED- interfaces of the LED control device. It detects the LED-DIM dimming signal through the built-in circuitry and controls the DC-DC conversion circuit to realize the switching on and off of the lighting and brightness adjustment. The lighting sub-device with built-in single-lamp control module is connected to the LED+ and LED- interfaces of the LED control device. It controls the DC-DC conversion circuit through the built-in single-lamp control module to independently control the switching on and off of the lighting and brightness adjustment.

4. The DC lighting system according to claim 1, characterized in that, The lighting sub-equipment includes a dual-color temperature lighting sub-equipment, a dual-color temperature lighting sub-equipment with built-in detection circuitry, and a dual-color temperature lighting sub-equipment with built-in single-lamp control module. The LED control device includes an LED+ interface, an LED- interface, an LED-C interface, and an LED-W interface. The LED+ interface, LED- interface, LED-C interface, and LED-W interface are all connected to multiple lighting sub-equipments. The dual-color temperature lighting sub-device is connected to the LED+, LED-C, and LED-W interfaces of the LED control device, and is used to realize the switching, brightness adjustment, and color temperature adjustment of the lighting through group control operation; the dual-color temperature lighting sub-device with built-in detection circuit is connected to the LED+, LED-C, LED-W, and LED- interfaces of the LED control device, and is used to detect the LED-DIM dimming signal through the built-in circuit, control the DC-DC conversion circuit, and realize the switching, brightness adjustment, and color temperature adjustment of the lighting; the dual-color temperature lighting sub-device with built-in single-lamp control module is connected to the LED+ and LED- interfaces, and is used to control the DC-DC conversion circuit through the built-in single-lamp control module, and realize the individual control of the switching and brightness adjustment of the lighting.

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