Direct-current illumination control system and method for large-space place

Abstract

The invention belongs to the technical field of lighting systems, and discloses a direct-current lighting control system and method for a large-space place, and the system comprises an alternating-current lamp control power distribution cabinet, an alternating-to-direct driver cabinet, a direct-current control module, a plurality of LED lamps, and connecting cables between the devices. The alternating-current lamp control power distribution cabinet is an alternating-current 220V and / or alternating-current 380V power distribution device; the alternating-to-direct driver cabinet is a power supply device for outputting DC48V-DC375V and is used for rectifying and converting an alternating-current power supply into a direct-current power supply, and the alternating-current lamp control power distribution cabinet, the alternating-to-direct driver cabinet, the direct-current control module and the plurality of LED lamps are sequentially connected through a power supply cable and a control signal cable. Compared with a traditional alternating-current power supply illumination control system, power supply is stable and reliable, the voltage drop of a power supply line is small, energy consumption can be effectively reduced, the single-loop power supply distance is long, power supply is safe, the risk of electrical fire disasters is reduced, energy conservation and environmental protection are achieved, the service life of an LED lamp is effectively prolonged, and cost is effectively saved.

Description

Technical Field

[0001] This application relates to the technical field of lighting systems, and more specifically, to a DC lighting control system and method for large-space venues. Background Art

[0002] For existing large-span and large-space venues, such as stadiums, large-span and large-space industrial factories, etc., the lighting system is a 380V AC power supply system; a 380V AC power source is led out from the substation to the main lighting distribution box, and is respectively supplied to each sub-lighting distribution box and area lighting distribution box through power cables; then, through the loop distribution of the lighting distribution box, 220V alternating current is supplied to the lamps. The LED lamps are internally equipped with a constant current source module to convert 220V alternating current into the working voltage adapted to the LED light-emitting chips.

[0003] The existing lighting system for AC power supply in large-space venues has the following problems: short single-loop power supply distance, few lamps carried by a single-loop power supply, large power consumption of the power supply line, large influence by power grid fluctuations, large electromagnetic interference of LED lamps by the power grid, etc., and the initial investment is relatively large, and more lighting distribution boxes and larger cross-section cables need to be set up to meet the lighting power supply requirements. In addition, since each LED lamp is internally equipped with a constant current source module, the power factor is low, the workload of fault repair is large, and the cost of lamp repair and replacement is high. Summary of the Invention

[0004] In order to solve the above problems, this application provides a DC lighting control system and method for large-space venues.

[0005] The DC lighting control system and method for large-space venues provided by this application adopt the following technical solutions:

[0006] A DC lighting control system for large-space venues includes an AC lamp control power distribution cabinet, an AC-DC driver cabinet, a DC control module, several LED lamps, and connection cables between each device. The AC lamp control power distribution cabinet is a power distribution device for AC 220V and / or AC 380V power sources. The AC-DC driver cabinet is a power device that outputs DC 48V to DC 375V power, and is used to rectify and convert the AC power source into a DC power source. The AC lamp control power distribution cabinet, the AC-DC driver cabinet, the DC control module, and several LED lamps are sequentially connected through power supply cables and control signal cables. The AC lamp control power distribution cabinet provides power to multiple AC-DC driver cabinets at the same time. The AC-DC driver cabinet supplies power to multiple LED lamps at the same time. Each LED lamp has a drive module, and an RFID tag is provided on the drive module. The tag contains the LED lamp type and the drive SN code. The DC control module is arranged between the LED lamp and the AC-DC driver cabinet, and is used to read the LED lamp information and issue LED lamp control instructions.

[0007] Further, the AC-DC driver in the AC-DC driver cabinet is a 6-pulse rectifier.

[0008] Further, the AC-DC driver in the AC-DC driver cabinet is a 12-pulse rectifier.

[0009] Further, the AC-DC driver cabinet has multi-loop power supply and has the function of manual and automatic control of voltage regulation.

[0010] Further, the LED lamps are ordinary clean-type or outdoor three-proof type or explosion-proof type lamps, and the capacity of each lamp is below 1500W.

[0011] A DC lighting control method for large-space places includes the following steps:

[0012] Step 1: Sequentially connect an AC lamp control power distribution cabinet, an AC-DC driver cabinet, a DC control module, and a number of LED lamps through a power supply cable and a control signal cable;

[0013] Step 2: The DC control module periodically reads and stores the status information of the LED lamps;

[0014] Step 3: The DC control module periodically reads the command information of the AC lamp control power distribution cabinet and issues it to each LED lamp;

[0015] Step 4: The DC control module uploads a power request command to the AC-DC driver cabinet according to the read status information of the LED lamps, and the AC-DC driver cabinet dynamically adjusts the power output according to the power request command.

[0016] In summary, the present application includes at least one of the following beneficial technical effects:

[0017] Compared with the traditional AC power supply lighting control system, the power supply of the present application is stable and reliable, the voltage drop of the power supply line is small, which can effectively reduce energy consumption, the single-loop power supply distance is long, the power supply is safe, reducing the risk of electrical fires, energy-saving and environmental protection, effectively improving the service life of LED lamps, and effectively saving costs. Brief Description of the Drawings

[0018] Figure 1 It is a schematic diagram of the system composition of the present application;

[0019] Figure 2 It is a schematic diagram of the method flow of the present application. Detailed Embodiments

[0020] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present application without creative efforts shall fall within the protection scope of the present application.

[0021] In the description of the present application, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "inner", "outer", "top / bottom end", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present application. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0022] In the description of the present application, it should be noted that unless otherwise clearly specified and limited, the terms "installed", "provided with", "sheathed / connected", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific situations.

[0023] Embodiment 1:

[0024] The present application will be further described in detail below with reference to the accompanying drawings.

[0025] The embodiments of the present application disclose a DC lighting control system for large-space places. Please refer to Figure 1, including an AC lighting control power distribution cabinet, an AC-DC driver cabinet, a DC control module, several LED lamps, and connection cables between each device. The AC lighting control power distribution cabinet is a power distribution device for AC 220V and / or AC 380V power. The AC-DC driver cabinet is a power device that outputs DC 48V to DC 375V, which is used to rectify and transform the AC power into DC power. The AC lighting control power distribution cabinet, the AC-DC driver cabinet, the DC control module, and several LED lamps are sequentially connected through power supply cables and control signal cables. The AC lighting control power distribution cabinet supplies power to multiple AC-DC driver cabinets at the same time. The AC-DC driver cabinet supplies power to multiple LED lamps at the same time. Each LED lamp has a drive module, and an RFID tag is provided on the drive module. The tag contains the LED lamp type and the drive SN code. The DC control module is arranged between the LED lamp and the AC-DC driver cabinet, and is used to read the LED lamp information and issue LED lamp control instructions. A complete DC lighting system for AC power transmission, distribution, AC-DC conversion, and DC power supply to lamps is formed. According to the actual lighting requirements, the capacity of each component can be changed. The power cable changes different cable cross-sections to meet the power supply requirements of the load. The laying method of the cable can be bridge overhead laying or cable trench buried laying. The AC lighting control power distribution cabinet can also be a distribution box, and the installation method can be floor-mounted or wall-mounted, and can be installed indoors or outdoors. The AC-DC driver cabinet can be a pulse rectifier or a pulse rectifier, and the capacity can be changed according to different load requirements. The AC-DC driver cabinet is a power device that outputs DC 48V to DC 375V. The AC-DC driver cabinet has multi-loop power supply and has the function of manual and automatic control voltage regulation. The LED lamp is a common clean type or outdoor three-proof type or explosion-proof type lamp, and the capacity of each single lamp is below 1500W.

[0026] This real-time example also discloses a DC lighting control method for large space places, including the following steps:

[0027] Step 1: Sequentially connect the AC lighting control power distribution cabinet, the AC-DC driver cabinet, the DC control module, and several LED lamps through power supply cables and control signal cables;

[0028] Step 2: The DC control module periodically reads and stores the status information of the LED lamps;

[0029] Step 3: The DC control module periodically reads the command information of the AC lighting control power distribution cabinet and issues it to each LED lamp;

[0030] Step 4: The DC control module uploads a power request command to the AC-DC driver cabinet according to the read LED lamp status information, and the AC-DC driver cabinet dynamically adjusts the power output according to the power request command.

[0031] The implementation principle of a DC lighting control system and method for large-space venues in an embodiment of the present application is as follows: The DC lighting system and control method involved in the present application have the following advantages compared with the existing AC lighting control system:

[0032] Stable power supply: The DC power supply is more stable, reliable, and simple than the traditional AC power supply. The DC power supply system is basically not affected by the electromagnetic interference of the AC power grid on the lamps, i.e., EMC; the DC power supply system is basically not affected by lightning strikes transmitted from the AC power grid side; the DC power supply has a smaller voltage drop than the traditional AC power supply; due to the smaller voltage drop of the DC power supply, its power supply distance is longer under the same load; by using the DC lighting control system, the current of the lamps will be more stable and continuous, reducing the risk of electrical fires; the DC lighting control system can effectively reduce the distribution circuits, saving the number of distribution circuits and cables. By improving the reliability and stability of the power supply current, it can save maintenance costs, be energy-saving and environmentally friendly, and improve the utilization efficiency; LED DC lamps can eliminate the need for constant current source modules, including circuits and components such as EMC, rectification, power factor correction, and filtering, and the internal components of the lamps are more concise.

[0033] The power supply of the present application is stable and reliable, reduces energy consumption, is safe in power supply, reduces the risk of electrical fires, has a manual and automatic control voltage regulation function to control the brightness of the lamps, and can supply power differentially according to different requirements for illuminance to achieve energy-saving effects.

[0034] The above are all preferred embodiments of the present application. The protection scope of the present application is not limited thereby. Therefore, all equivalent changes made according to the structure, shape, and principle of the present application shall be covered within the protection scope of the present application.

Claims

1. A DC lighting control system for large spaces, characterized in that: It includes an AC light control distribution cabinet, an AC direct current drive cabinet, a DC control module, a plurality of LED lamps and connecting cables between the devices. The AC light control distribution cabinet is an AC 220V and / or AC 380V power distribution device. The AC direct current drive cabinet is an output DC48V~DC375V power supply device, which is used to rectify and transform the AC power supply into a DC power supply. The AC light control distribution cabinet, the AC direct current drive cabinet, the DC control module and the plurality of LED lamps are connected in sequence through power supply cables and control signal cables. The AC light control distribution cabinet provides power to a plurality of the AC direct current drive cabinets at the same time. The AC direct current drive cabinet supplies power to a plurality of the LED lamps at the same time. The LED lamps all have a drive module. The drive module is provided with an RFID tag, which contains the LED lamp type and the drive SN code. The DC control module is arranged between the LED lamp and the AC direct current drive cabinet, and is used to read the LED lamp information and issue LED lamp control instructions.

2. A DC lighting control system for a large space according to claim 1, characterized in that: The alternating direct current drive in the alternating direct current drive cabinet is a 6-pulse rectifier.

3. According to claim 1, a DC lighting control system for a large space is characterized in that: The alternating direct current drive in the alternating direct current drive cabinet is a 12-pulse rectifier.

4. A DC lighting control system for a large space according to claim 1, characterized in that: The alternating direct drive cabinet has multi-circuit power supply and is equipped with manual and automatic control voltage regulation functions.

5. According to claim 1, a DC lighting control system for a large space is characterized in that: The LED lamps are ordinary clean type or outdoor three-proof type or explosion-proof type lamps, and the capacity of a single lamp is less than 1500W.

6. A DC lighting control method for a large space, characterized in that: The following steps are involved: Step 1: Connect the AC lighting control distribution cabinet, the AC direct drive cabinet, the DC control module, and several LED lamps in sequence through power supply cables and control signal cables; Step 2: The DC control module periodically reads and stores the status information of the LED lamp; Step 3: The DC control module periodically reads the command information of the AC lighting control distribution cabinet and sends it to each LED lamp; Step 4: The DC control module uploads a power request instruction to the AC DC drive cabinet according to the LED lamp status information read, and the AC DC drive cabinet dynamically adjusts the power output according to the power request instruction.

7. A DC lighting control method for large spaces according to claim 6, characterized in that the status information of the LED lamp in step 2 includes lamp type, drive SN code, power information, on / off information, and position information.

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