Control module of eight-channel double-position dimming system

Abstract

The utility model discloses a control module of an eight-channel double-position dimming system, and relates to the technical field of light control. The device comprises a circuit board 1, an access network port 2, an output network port 3 and a power supply interface 4, the left side of the circuit board 1 is provided with an access network port 2, the right side of the circuit board 1 corresponding to the access network port 2 is provided with an output network port 3, and two sides of the middle part of the circuit board 1 are respectively provided with a power supply interface 4. A standard DMX512 physical interface is adopted, RJ45 network port cascading is supported, and networking can be carried out conveniently; the system has the functions of automatic addressing, selectable gray scale output modes, self-test mode triggering and the like, and parameters are automatically recovered after power failure.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of light control, specifically relates to a control module of 8 channel double position dimming system. BACKGROUND

[0002] In the field of dimming system, DMX512 protocol becomes the industry standard of scene dimming control of stage lighting, landscape lighting and the like owing to its openness and wide compatibility. The traditional dimming equipment has limitations in the number of channels, control flexibility, environmental adaptability and the like, and it is difficult to meet the requirements of complex lighting scene on fine and intelligent dimming. Under this background, the control module of 8 channel double position dimming system emerges as the times require. CONTENT OF UTILITY MODEL

[0003] The utility model aims at the defects and deficiencies of prior art, provides a control module of 8 channel double position dimming system, it adopts standard DMX512 physical interface, supports RJ45 network port cascade, can conveniently network, has the functions such as automatic addressing, gray scale output mode optional, self-test mode trigger, and parameter is automatically recovered after power failure. In output capacity, constant voltage output adapts DC 12-48V voltage, and the maximum output reaches 16A, and the maximum 2A of single channel. Meanwhile, the module can work stably in the wide temperature range of -40 DEG C to +105 DEG C, and the compact PCBA size and screw hole design greatly improve the convenience and universality of installation.

[0004] To realize the above-mentioned purpose, the utility model adopts the following technical scheme: it contains circuit board 1, access network port 2, output network port 3, power supply interface 4;The left side of circuit board 1 is equipped with access network port 2, and the right side of circuit board 1 corresponding to access network port 2 is equipped with output network port 3, and one power supply interface 4 is arranged on each side in the middle of circuit board 1.

[0005] Further, the access network port 2 and the output network port 3 can be arranged in symmetrical positions on the circuit board 1 or installed in side-by-side positions.

[0006] Further, the access network port 2 and the output network port 3 are RJ45 network ports. RJ-45DMX Pin-out: 1. Data+;2. Data-;3. Programming;4-6: NC;7-8: GND.

[0007] Further, the power supply interface 4 is connected with an external power supply and an electrical equipment.

[0008] Further, the power supply interface 4 can select different models and specifications according to actual working conditions.

[0009] The working principle of the utility model is as follows: 1. networking and communication

[0010] The module realizes the cascade of one-in and one-out by means of a standard DMX512 / 1990 physical interface through an RJ45 network port. The RJ45 network port adopts a specific DMX Pin-out design: the No. 1 line transmits a Data+ signal, the No. 2 line transmits a Data- signal, differential signal transmission is relied on to effectively improve the anti-interference capability of data transmission; the No. 3 line is used for programming operation; the No. 4-6 lines are NC (not connected), and the No. 7-8 lines are grounded. This design ensures stable transmission of data in the networking process and smooth communication between modules.

[0011] 2. Address and gray scale setting

[0012] The system automatically addresses the modules through a DMX512 bus and an address line, and gives each module a unique identity for easy centralized management and control. At the same time, the user can select 8-bit or 16-bit gray scale output according to actual needs through the DMX512 bus. The 8-bit gray scale can provide 256 levels of dimming accuracy, and the 16-bit gray scale can improve the dimming accuracy to 65536 levels, meeting the requirements of different scenes for dimming fineness.

[0013] 3. Self-test mechanism

[0014] When it is necessary to detect the running state of the module, the self-test mode can be triggered through the DMX512 bus. In this mode, the 8 channels of the module will output 20% gray scale brightness signals in turn. By observing the response of the external device, it can be quickly judged whether each channel of the module is working normally, and the fault can be found and located in time.

[0015] 4. Parameter storage

[0016] The module has a power-off memory function. After the parameter setting is completed, even if a power failure occurs, the system can automatically save the set parameters. After the power is restored, the module will quickly recover to the working state before the power failure according to the stored parameters without the need for reconfiguration.

[0017] 5. Output control

[0018] The module adopts a Current-sink constant voltage output mode, the output interface is connected to the negative electrode of the LED, and is suitable for common anode type LED load. The input and output voltage range is DC 12-48V, the maximum output current is 16A, and the maximum output current of a single channel is 2A. This feature ensures that the module can adapt to LED devices of different power, and widens the application scenarios. The module also has strict control over the working temperature. In an environment of -40℃ to +105℃, through optimization of the heat dissipation design and selection of temperature-resistant components, stable performance is maintained to ensure long-term reliable operation of the system.

[0019] After the above technical scheme is adopted, the utility model has the beneficial effects that: 1. Convenient networking and installation

[0020] Flexible network port design: The module is equipped with an RJ45 network port, supports one-in-one-out cascading mode, and the access network port and the output network port can be symmetrically arranged or installed side by side, greatly improving the flexibility of network configuration, meeting different wiring needs, reducing wiring cost and difficulty.

[0021] Compact size and mounting hole: The PCBA size is not more than L85xW37xH11mm, and M3 screw holes are arranged at four corners, which is convenient to install, can adapt to various installation environments, and reduces space occupation.

[0022] 2. Rich and practical functions

[0023] Automatic addressing and parameter memory: Automatic addressing is realized through DMX512 bus and address line, and 8-bit or 16-bit gray scale output mode switching is supported; after parameter setting, the power is automatically restored without repeated configuration, which greatly simplifies the operation process and improves the work efficiency.

[0024] Self-test mode: The self-test mode can be triggered through the DMX512 bus, and 8 channels output 20% gray scale brightness signals in turn, which is convenient for timely detection of module running state and rapid positioning and solving of faults.

[0025] 3. Strong output adaptability

[0026] Wide voltage and large current output: The Current-sink constant voltage output mode is adopted, the input and output voltage is adapted to DC12-48V, the maximum output is 16A, and the maximum output of each channel is 2A, which can meet the power supply needs of different power LED equipment and has wide application range.

[0027] 4. Good environmental adaptability

[0028] The working temperature range of the module is-40℃ to +105℃, which can stably run in harsh environment, reduces the performance fluctuation caused by temperature change, and guarantees long-term stable operation of the system. BRIEF DESCRIPTION OF DRAWINGS

[0029] In order to more clearly illustrate the technical scheme of the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiment or prior art description. Obviously, the drawings in the following description are only some embodiments of the present application, and those skilled in the art can obtain other drawings according to these drawings without creating creative labor.

[0030] Figure 1 is a structural schematic view of the present application;

[0031] Figure 2 is a left view corresponding to Figure 1 ;

[0032] Figure 3 is a right view corresponding to Figure 1 ;

[0033] Figure 4 is a bottom view corresponding to Figure 1 ;

[0034] Figure 5 is a schematic diagram applied in the lamp strip of the utility model;

[0035] Figure 6 is a partial structure schematic diagram corresponding to Figure 5 .

[0036] Explanation of reference signs: circuit board 1, access network port 2, output network port 3, power supply interface 4. DETAILED DESCRIPTION

[0037] Referring to Figures 1-6 , the technical scheme adopted in the embodiment is:

[0038] Example one: stage light control

[0039] When a large theater is performing stage light reconstruction, an 8-channel double-bit dimming system control module is selected.

[0040] Networking construction: according to the cascading characteristics of the RJ45 network port of the module, a plurality of modules are connected in series by technical personnel. Among them, the differential signal transmission of Data+ and Data- allows data to be stably transmitted in a complex stage environment, avoiding the loss and interference of light control signals.

[0041] Function configuration: with the help of the DMX512 bus, each module is automatically addressed, which facilitates the lighting director to centrally control the light in different areas on the console. Considering the high requirement of stage light effect on dimming precision, the module is set to 16-bit gray scale output, realizing 65536-level dimming and creating delicate and changeable light atmosphere.

[0042] Scene application: in a musical, by triggering the self-test mode of the module, the fault of one channel is quickly found out, ensuring the smooth performance. During the performance, the power-off memory function of the module ensures that after a short power recovery, the light can quickly recover to the state before power failure, maintaining the continuity of the performance.

[0043] Example two: commercial store lighting

[0044] A chain clothing store adopts the module in the store lighting system.

[0045] Hardware adaptation: Since the store uses DC 24V common anode LED light strips, the Current-sink constant voltage output mode of the module is adapted to it, and the maximum 2A output current of a single channel meets the power supply requirements of the light strip.

[0046] Functional application: To meet the lighting needs of the store at different times, the module is set to 8-bit gray scale output to achieve 256-level dimming. In the daytime, the light is brightened to enhance the transparency of the store; at night, the light is appropriately dimmed to create a warm shopping atmosphere. At the same time, each module is automatically addressed through the DMX512 bus, and staff can independently control the light in different areas in the background.

[0047] Environmental adaptation: The module has a working temperature range of -40℃ to +105℃, which ensures that the lighting system can operate stably under different seasons and different environmental temperatures, reducing maintenance costs.

[0048] Example three: landscape lighting project

[0049] In a city's landscape lighting project, the module plays an important role.

[0050] Networking and control: A large number of landscape lights are involved in the project, and multiple modules are cascaded through the RJ45 network port to build a large light control system. The modules are automatically addressed and centrally managed using the DMX512 bus, enabling unified control of landscape lights in different areas.

[0051] Output and energy saving: According to the power requirements of the landscape lights, the module's maximum 16A output current meets the overall power supply requirements. By setting the appropriate gray scale output, the energy-saving purpose is achieved while ensuring the lighting effect.

[0052] Troubleshooting: In daily maintenance, the self-test mode of the module is triggered to quickly detect faulty channels for timely repair, ensuring the normal operation of the landscape lighting project.

[0053] The above description is only to illustrate the technical solutions of the present application, not to limit it. Other modifications or equivalent replacements made by those skilled in the art to the technical solutions of the present application, as long as they do not deviate from the spirit and scope of the present application, should be covered in the scope of the claims of the present application.

Claims

1. A control module for an 8-channel, two-bit dimming system, characterized by: It contains circuit board (1), access network mouth (2), output network mouth (3), power supply interface (4);The left side of the circuit board (1) is equipped with access network mouth (2), the right side of the circuit board (1) corresponding access network mouth (2) is equipped with output network mouth (3), and the middle part of the circuit board (1) is equipped with one power supply interface (4) on each side.

2. The control module of an 8-channel two-bit dimming system according to claim 1, characterized in that: The access network mouth (2) and the output network mouth (3) can be symmetrically arranged on the circuit board (1) or can be installed side by side.

3. The control module of an 8-channel two-bit dimming system according to claim 1, characterized in that: The access network mouth (2) and the output network mouth (3) are RJ45 network mouths.

4. The control module of an 8-channel two-bit dimming system according to claim 1, characterized in that: The power supply interface (4) is connected with external power supply and electrical equipment.

5. The control module of an 8-channel two-bit dimming system according to claim 1, characterized in that: The power supply interface (4) can be selected according to actual working conditions.

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