Master-slave lighting device with configuration and driving functions

Abstract

The utility model belongs to the technical field of lighting, and particularly relates to a master-slave lighting device with configuration and driving functions, which comprises at least one lighting box, a power supply, a lamp, an XLR cable and a DMX software module, the adjacent lighting boxes are connected through an XLR cable, the lighting boxes start the lamps, and each lighting box corresponds to one lamp; the lighting box comprises a first adjustable power supply and a second adjustable power supply so as to receive 15V direct-current voltage of an external power supply, the first adjustable power supply is connected with a first low-side constant-current driver, and the second adjustable power supply is connected with a second low-side constant-current driver. The master-slave lighting device with the configuration and driving functions has the effects that the lighting mode and effect can be visually operated and configured, parameters can be set and adjusted by local lamp strings or lamps, and the fine degree of configuration is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of lighting, and in particular relates to a master-slave lighting device with configuration and driving functions. Background Art

[0002] With existing technology, the lighting box only provides power and mode switching signals to the lamp. The lamp itself needs to design the light source control circuit and mode effect switching circuit, which makes the lamp design difficult and time-consuming. Although the lighting box has a visual interface, it cannot set and adjust parameters for local light strings or lamps, and the configuration precision is low. The functional modules of the control box and the lamp are locked and cannot light up a single light string or area, and cannot be used to check local design defects of the lamp effect. The lighting box cannot be used in a master-slave combination and cannot arrange and control multiple or various lamps over long distances. The lighting box uses a complex software and hardware platform, requires complicated programming and integrated chips, and is expensive. Utility Model Content

[0003] The purpose of the utility model is to provide a master-slave lighting device with configuration and driving functions to solve the technical problems that the lighting box uses a complex hardware and software platform, requires complicated programming and integrated chips, and is expensive. It can achieve the purpose of visual operation and configuration of lighting modes and effects, and can set and adjust parameters for local light strings or lamps, thereby improving the sophistication of configuration.

[0004] In order to solve the above technical problems, the present invention provides a master-slave lighting device with configuration and driving functions, comprising:

[0005] At least one lighting box, a power supply, a lamp, an XLR cable, and a DMX software module, wherein the power supply supplies power to the lighting box, adjacent lighting boxes are connected via XLR cables, and the lighting boxes activate the lamps, with each lighting box corresponding to one lamp;

[0006] The lighting box includes a first adjustable power supply and a second adjustable power supply to receive a 15V DC voltage from an external power supply. The first adjustable power supply is connected to a first low-side constant current driver, and the second adjustable power supply is connected to a second low-side constant current driver.

[0007] Furthermore, the DMX software module is electrically connected to the lamp via a USBDMX connection to configure and operate electrical parameters;

[0008] Furthermore, the first low-side constant current driver and the second low-side constant current driver are provided with 32 effective channels.

[0009] Furthermore, the current adjustment range of the effective channel is 0-200mA.

[0010] Furthermore, the XLR cable adopts a balanced transmission mode.

[0011] Furthermore, the USBDMX connection includes the input voltage, channel current and duty cycle of each configured light string and lamp.

[0012] The beneficial effects of the utility model are:

[0013] (1) Through the master-slave lighting device with configuration and driving functions, the lamp does not need to design control and mode effect switching circuits, and only needs to retain the original light source string, which reduces the design difficulty of the lamp sample and shortens the production cycle of the lamp sample.

[0014] (2) Through the master-slave lighting device with configuration and driving functions, the lighting mode and effect can be visually operated and configured, and the parameters can be set and adjusted for local light strings or lamps, which improves the configuration precision.

[0015] (3) Through the master-slave lighting device with configuration and driving functions, a single light string or area can be illuminated, which can check the local design defects of the lighting effect and improve the convenience of inspection and evaluation by reviewers;

[0016] (4) Through the master-slave lighting device with configuration and driving functions, the master-slave combination of control mode and lamps can be realized, supporting long-distance control signal transmission, and improving the flexibility of display personnel in arranging and adjusting multiple or multiple lamps.

[0017] (5) Through the master-slave lighting device with configuration and driving functions, the signal is transmitted based on differential voltage, with strong anti-interference ability, suitable for one-point-to-multipoint master-slave control system. Its interconnection form adopts a multi-point bus structure, and there is no problem of information path blocking. Its connection is simple and the reliability is high.

[0018] (6) Through the master-slave lighting device with configuration and driving functions, the lighting box uses the communication protocol between the DMX lighting controller and the lighting equipment, which is simple to implement, does not require special hardware equipment support, and is cheap.

[0019] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, preferred embodiments are given below and described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0021] Figure 1 This is a schematic structural diagram of a master-slave lighting device with configuration and driving functions of the present invention;

[0022] Figure 2 It is a structural schematic diagram of a lighting box of a master-slave lighting device with configuration and driving functions of the present invention. DETAILED DESCRIPTION

[0023] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts shall fall within the scope of protection of the present invention.

[0024] Example:

[0025] like Figures 1 to 2 As shown, a master-slave lighting device with configuration and driving functions includes: at least one lighting box, a power supply, a lamp, an XLR cable and a DMX software module, the power supply supplies power to the lighting box, and adjacent lighting boxes are connected via XLR cables;

[0026] Among them, the upper power supply is used for power supply. This module is a module that converts AC voltage into DC voltage, which plays the role of power supply protection and energy supply for the device. The conversion voltage depends on the load voltage drop requirement. In this example, 220V AC voltage is converted into 15V DC voltage.

[0027] The lamps are then connected through the lower wiring harness. The wiring harness and interface use the standard Sub-50 connector with the national standard number: TB09670504704, which standardizes the termination forms of all lighting boxes and lamps and meets the requirements of universality. The sample lamps in this example only require light source strings and do not require the design of drive circuits, control circuits, communication processing circuits, etc., which greatly reduces the design difficulty and production costs, and also shortens the sample production cycle.

[0028] Configure and operate electrical parameters on devices installed with DMX software. This software has a visual interface. DMX is the protocol standard for communication between lighting controllers and lighting devices. It supports both real-time configuration adjustments and the use of pre-configured parameters. This example configures different input voltages, channel currents, duty cycles, and other information for multiple lamps.

[0029] Then connect it to the left signal input terminal of the lighting box via USB DMX wiring. DMX is transmitted based on differential voltage and has strong anti-interference ability. Due to the use of RS-485 bus transceiver, the signal can be transmitted over long distances. In this example, 10 lamp samples are connected to achieve the lighting box effect of the lamps.

[0030] Then connect the next lighting box through the XLR cable on the right. The XLR cable adopts balanced transmission mode, which has strong resistance to external interference and is conducive to long-distance transmission. The connectors at both ends of the harness have spring locking devices, which make the connection reliable and not easy to pull off. The connector also stipulates the signal flow direction to prevent reverse connection.

[0031] Through step-by-step connection, a master-slave connection control method is realized in which one device controls N lighting boxes and N lamps over a long distance. This method is a one-to-multiple-point master-slave control system. Its interconnection form adopts a multi-point bus structure, and there is no problem of information path blocking. Its connection is simple and the reliability is high.

[0032] like Figure 2 As shown, the lighting box includes a first adjustable power supply and a second adjustable power supply to receive a 15V DC voltage from an external power supply. The first adjustable power supply is connected to a first low-side constant current driver, and the second adjustable power supply is connected to a second low-side constant current driver. The DMX software module electrically connects to the lighting fixture via a USB DMX connection to configure and operate the electrical parameters. The first and second low-side constant current drivers are configured with 32 active channels. The current adjustment range of the active channels is 0-200mA.

[0033] The adjustable power supply receives a 15V DC voltage from an external power supply and can further adjust this voltage to provide the appropriate driving voltage for the LED light string used for lighting. In this example, the common anode power supply is adjusted to 11.5V and the common cathode power supply is adjusted to 9.4V. This accommodates LED light strings with different voltage drops, such as a four-LED string for position lights and brake lights, and a three-LED string for turn signals.

[0034] The internal low-side constant-current driver is an adjustable constant-current power supply. It is connected to the cathode of each LED string of the sample lamp through a 50-pin connector, forming a complete current loop, enabling independent setting, adjustment, and control of the current of each LED string. The low-side constant-current driver in this example has 32 effective channels, each of which supports a current adjustment range of 0mA to 200mA, suitable for 18mA position light, 55mA brake light, and 155mA turn signal functions.

[0035] The DMX input received from the front end contains information such as the input voltage, channel current, and duty cycle of each configured light string and fixture, such as the values ​​for position light 10%, braking 100%, and steering 50%. After DIP selection and recognition, the configuration information is received and executed, and then transmitted to the subsequent lighting device via the DXM output, thus realizing master-slave lighting control. XLR cables use balanced transmission.

[0036] The USB DMX wiring includes the input voltage, channel current and duty cycle of each configured light string and lamp.

[0037] In summary: through the master-slave lighting device with configuration and driving functions, the lamp does not need to design control and mode effect switching circuits, and only needs to retain the original light source string, which reduces the design difficulty of the lamp sample and shortens the production cycle of the lamp sample. The master-slave lighting device with configuration and drive functions enables visual operation and configuration of lighting modes and effects, and can set and adjust parameters for local light strings or fixtures, improving the configuration precision. The master-slave lighting device with configuration and drive functions can illuminate a single light string or area, allowing for inspection of local design flaws in lighting effects and improving the convenience of reviewers' inspection and evaluation. The master-slave lighting device with configuration and drive functions can realize master-slave combinations of control modes and lighting fixtures, support long-distance control signal transmission, and increase the flexibility of exhibitors in arranging and adjusting multiple or multiple lighting fixtures. The master-slave lighting device with configuration and drive functions transmits signals based on differential voltage, which has strong anti-interference capabilities and is suitable for one-to-multipoint master-slave control systems. Its interconnection adopts a multi-point bus structure, which eliminates the problem of information path blockage, simplifies wiring, and has high reliability. The lighting box of the master-slave lighting device with configuration and drive functions uses the communication protocol between the DMX lighting controller and the lighting equipment, which is simple to implement, does not require specialized hardware support, and is inexpensive.

[0038] The various devices selected in this application are all universal standard parts or components known to those skilled in the art, and their structures and principles can be known to those skilled in the art through technical manuals or conventional experimental methods.

[0039] In the description of the embodiments of the present invention, unless otherwise specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0040] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating positions or relationships, are based on the positions or relationships shown in the accompanying drawings and are intended solely to facilitate the description of this utility model and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0041] Based on the above-mentioned ideal embodiment of the present invention, and in accordance with the above description, relevant personnel can make various changes and modifications without departing from the technical scope of the present invention. The technical scope of the present invention is not limited to the content of the specification, but must be determined according to the scope of the claims.

Claims

1. A master-slave lighting device with configuration and driving functions, characterized in that: include: At least one lighting box, a power supply, a lamp, an XLR cable, and a DMX software module, wherein the power supply supplies power to the lighting box, adjacent lighting boxes are connected via XLR cables, and the lighting boxes activate the lamps, with each lighting box corresponding to one lamp; The lighting box includes a first adjustable power supply and a second adjustable power supply to receive a 15V DC voltage from an external power supply. The first adjustable power supply is connected to a first low-side constant current driver, and the second adjustable power supply is connected to a second low-side constant current driver.

2. A master-slave lighting device with configuration and driving functions as claimed in claim 1, characterized in that: The DMX software module is electrically connected to the lamp via USB DMX wiring to configure and operate electrical parameters.

3. A master-slave lighting device with configuration and driving functions as claimed in claim 2, characterized in that: The first low-side constant current driver and the second low-side constant current driver are provided with 32 effective channels.

4. A master-slave lighting device with configuration and driving functions as claimed in claim 3, characterized in that: The current adjustment range of the effective channel is 0-200mA.

5. A master-slave lighting device with configuration and driving functions as claimed in claim 4, characterized in that: The XLR cable (5) adopts a balanced transmission mode.

6. A master-slave lighting device with configuration and driving functions as claimed in claim 5, characterized in that: The USBDMX connection (4) includes the input voltage, channel current and duty cycle of each configured light string and lamp.

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