Lighting control system

Abstract

The application discloses a kind of lighting control systems, wherein, lighting control system includes: lighting device and control box, lighting device includes lighting circuit;Control box includes control circuit;Control circuit includes lighting control module, lighting control module is used to receive operating signal, lighting control module is also used to generate control signal according to operating signal;Lighting circuit includes: drive module and lighting module;Drive module is used to receive control signal;Drive module is also used to generate drive signal according to control signal;Lighting module is connected with drive module, and lighting module is used to work according to drive signal;Wherein, the voltage of control signal is less than the voltage of drive signal, so that higher voltage drive signal is transferred to the inside of lighting circuit to generate, and higher voltage drive signal is only transmitted in the inside of lighting circuit, which can effectively reduce the electromagnetic interference between lighting device and control box.

Description

Technical Field

[0001] This application relates to the field of lighting control technology, and more specifically, to a lighting control system. Background Technology

[0002] In related technologies, lighting control systems can generate drive signals through the control circuit of the control box to control the operation of the lighting circuit of the lighting equipment. Drive control via drive signals is fast and easy to control, making it particularly suitable for high-power applications.

[0003] However, the high voltage and frequency of the drive signal result in high EMI (Electromagnetic Interference) between the control box and the lighting equipment, which easily generates high-frequency noise and seriously affects the normal operation of the lighting circuit. Utility Model Content

[0004] In view of the above problems, this utility model proposes a lighting control system.

[0005] In a first aspect, embodiments of this application provide a lighting control system, which includes: a lighting device and a control box; wherein the lighting device includes a lighting circuit; the control box includes a control circuit; the control circuit includes a lighting control module, which is used to receive an operation signal and also to generate a control signal based on the operation signal; the lighting circuit includes: a drive module and a lighting module; the drive module is used to receive the control signal and also to generate a drive signal based on the control signal; the lighting module is connected to the drive module and is used to operate according to the drive signal; wherein the voltage of the control signal is less than the voltage of the drive signal.

[0006] Optionally, the driving module of the lighting circuit includes a first boost unit and a first switching unit. The first boost unit is used to boost the control signal to generate a first boost control signal; the first switching unit is used to generate a driving signal according to the first boost control signal; wherein, the control signal is a pulse width modulation signal.

[0007] Optionally, the first switching unit includes a control terminal, a first switching terminal, and a second switching terminal; wherein the control terminal is connected to the first boost unit, and the first and second switching terminals are connected in series with the lighting module; the control terminal is used to control the on / off state of the path between the first and second switching terminals.

[0008] Optionally, the lighting module includes multiple lighting sub-modules, and the driving module includes multiple first boost units and multiple first switching units; the number of control signals is multiple; the number of control signals is the same as the number of first boost units; the number of first boost units is the same as the number of first switching units, and the number of first switching units is the same as the number of lighting sub-modules.

[0009] Optionally, the first switching unit includes a metal-oxide-semiconductor field-effect transistor.

[0010] Optionally, the driving module of the lighting circuit includes a lighting control unit, a second boost unit, and a second switching unit; the lighting control unit is used to receive control signals; the lighting control unit is used to generate lighting control signals according to the control signals; the second boost unit is connected to the lighting control unit and is used to generate a second boost signal according to the lighting control signal; the second switching unit is connected to the second boost unit and is used to generate a driving signal according to the second boost signal; wherein, the control signal is a digital communication protocol signal.

[0011] Optionally, the lighting control unit includes a first serial port interface, and the lighting control module includes a second serial port interface, the second serial port interface and the first serial port interface being connected via a connecting cable.

[0012] Optionally, the control circuit further includes a wireless communication module, and the drive module further includes a wireless communication unit; the wireless communication module is used to send control signals to the wireless communication unit; the wireless communication unit is connected to the lighting control unit, and the wireless communication unit is used to send control signals to the lighting control unit via wireless communication.

[0013] Optionally, the lighting module includes multiple lighting sub-modules, and the driving module includes multiple second boost units and multiple second switching units; the number of lighting control signals is multiple; the number of lighting control signals is the same as the number of second boost units; the number of second boost units is the same as the number of second switching units; the number of second switching units is the same as the number of lighting sub-modules; multiple lighting control signals correspond one-to-one with multiple second boost units; multiple second boost units correspond one-to-one with multiple second switching units, and multiple second switching units correspond one-to-one with multiple lighting sub-modules; the second boost unit is used to receive the corresponding lighting control signal; the second boost unit is connected to the corresponding second switching unit; the second switching unit is connected to the corresponding lighting sub-module.

[0014] Optionally, the control circuit also includes a filtering module, which is connected to the lighting control module. The filtering module is used to filter the control signal to form a filtered control signal; the drive module is used to receive the filtered control signal.

[0015] The technical solution provided by this utility model includes a lighting control system comprising: a lighting device and a control box; wherein the lighting device includes a lighting circuit, and the control box includes a control circuit; the control circuit includes a lighting control module, which is used to receive operation signals and generate control signals based on the operation signals; the lighting circuit includes: a drive module and a lighting module; the drive module is used to receive control signals and generate drive signals based on the control signals; the lighting module is connected to the drive module and operates according to the drive signals; wherein the voltage of the control signal is lower than the voltage of the drive signal, thereby transferring the higher voltage drive signal to the interior of the lighting circuit for generation, and the higher voltage drive signal is only transmitted within the lighting circuit, which can effectively reduce electromagnetic interference between the lighting device and the control box. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments and drawings obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0017] Figure 1 A schematic diagram of the structure of a lighting control system provided in an embodiment of this application is shown.

[0018] Figure 2 A schematic diagram of another lighting control system provided in an embodiment of this application is shown.

[0019] Figure 3 A schematic diagram of another lighting control system provided in an embodiment of this application is shown.

[0020] Figure 4 A schematic diagram of another lighting control system provided in an embodiment of this application is shown.

[0021] Figure 5 A schematic diagram of another lighting control system provided in an embodiment of this application is shown.

[0022] Figure 6 A schematic diagram of another lighting control system provided in an embodiment of this application is shown.

[0023] Figure 7 A schematic diagram of another lighting control system provided in an embodiment of this application is shown.

[0024] Figure 8 A schematic diagram of another lighting control system provided in an embodiment of this application is shown.

[0025] Figure 9 A schematic diagram of another lighting control system provided in an embodiment of this application is shown. Detailed Implementation

[0026] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings.

[0027] In related technologies, the control circuit of the lighting control system generates drive signals. The control circuit is connected to the lighting circuit, and the operation of the lighting circuit can be controlled by the drive signals generated by the control circuit. The drive control is fast and easy to control, and is especially suitable for high-power applications.

[0028] However, the high voltage and frequency of the drive signal cause serious EMI (Electromagnetic Interference) between the control circuit and the lighting circuit when the drive signal is transmitted between them. This can easily generate high-frequency noise and seriously affect the normal operation of the lighting circuit.

[0029] To address the aforementioned technical problems, the inventors have proposed a lighting control system as described in this application. The lighting control system includes: a lighting device and a control box; wherein the lighting device includes a lighting circuit; the control box includes a control circuit; the control circuit includes a lighting control module, which receives operation signals and generates control signals based on the operation signals; the lighting circuit includes: a drive module and a lighting module; the drive module receives the control signals and generates drive signals based on the control signals; the lighting module is connected to the drive module and operates according to the drive signals; wherein the voltage of the control signal is lower than the voltage of the drive signal, thereby transferring the higher-voltage drive signal to the interior of the lighting circuit for generation. The higher-voltage drive signal is transmitted only within the lighting circuit, effectively reducing electromagnetic interference between the lighting circuit and the control circuit.

[0030] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings.

[0031] Please see Figure 1 , Figure 1 A schematic diagram of a lighting control system provided in an embodiment of this application is shown, as follows: Figure 1 As shown, the lighting control system 100 includes: a lighting device 110 and a control box 120; wherein the lighting device includes a lighting circuit 111 and the control box includes a control circuit 121.

[0032] In the embodiments of this application, the control circuit 121 includes a lighting control module 1211, which is used to receive an operation signal and generate a control signal based on the operation signal.

[0033] The operation signal includes control information for the lighting circuit 111. The operation signal can be generated by user operation (e.g., the user operates the lighting module 1112 through the terminal (e.g., turning the light on or off, adjusting the color, etc.) to generate the operation signal; or it can be generated by preset operation logic and specific conditions (e.g., turning off the light during a specific time period; or turning off the light when the user leaves home).

[0034] Optionally, the lighting control module 1211 may include a microcontroller unit (MCU).

[0035] In some implementations, the control signal is a pulse width modulation signal with a low voltage, such as 3.3V or 5V. The lighting control module 1211 sends the pulse width modulation signal to the lighting circuit 111. During the operation of the lighting circuit 111, the pulse width modulation signal is continuously output for lighting control. Since the voltage of the control signal is low, the electromagnetic interference between the lighting circuit 111 and the control circuit 121 is effectively reduced.

[0036] In other embodiments, the control signal is a digital communication protocol signal with a low voltage, such as 3.3V or 5V. The lighting control module 1211 converts the operation signal into a digital communication protocol signal and transmits the control information of the lighting module 1112. Since the voltage of the control signal is low, the electromagnetic interference between the lighting device 110 and the control box 120 is effectively reduced. Furthermore, the lighting control module 1211 and the lighting circuit 111 do not need to perform continuous signal transmission, thereby further reducing the electromagnetic interference between the control circuit 121 and the lighting circuit 111.

[0037] In an embodiment of this application, the lighting circuit 111 includes a driving module 1111 and a lighting module 1112. The driving module 1111 is used to receive a control signal; the driving module 1111 is also used to generate a driving signal according to the control signal.

[0038] The lighting module 1112 is connected to the drive module 1111, and the lighting module 1112 is used to operate according to the drive signal; wherein, the voltage of the control signal is less than the voltage of the drive signal.

[0039] In related technologies, the control box 120 directly generates a drive signal that can drive the lighting device 110 and transmits it to the lighting device 110 to drive it. However, the drive signal that directly drives the lighting device 110 requires a high voltage (power signal). Directly transmitting the drive signal between the control box 120 and the lighting device 110 will result in significant electromagnetic interference between them, affecting the normal operation of the lighting device 110. To improve the above-mentioned technical problems, the inventors of this application have creatively adjusted the circuit structure of the lighting control system. Specifically, a drive module 1111 is set in the lighting circuit 111 of the lighting device. The control box only sends a low-voltage control signal containing control information to the lighting device, while the drive module 1111 inside the lighting device 110 generates a higher-voltage drive signal that directly drives the lighting module 1112 based on the control signal.

[0040] By setting the structure for generating the drive signal in the lighting device, the control box only needs to transmit a control signal with a lower voltage to the lighting device. The drive module 1111 of the lighting device generates a corresponding drive signal based on the control signal to drive the lighting module 1112. The voltage of the drive signal is higher than that of the control signal. Thus, while ensuring the normal operation of the lighting circuit 111, the voltage of the signal to be transmitted between the lighting device and the control box is reduced, effectively reducing electromagnetic interference between the lighting device and the control box.

[0041] The control signal is generated by the control circuit 121 and is used to transmit control information for the lighting module 1112, such as on / off status, brightness adjustment, and color adjustment. The drive module 1111 is used to connect or disconnect the path between the lighting module 1112 and the power supply according to the control signal, thereby generating a drive signal that can drive the lighting module 1112 to operate. When the drive module 1111 connects the path between the lighting module 1112 and the power supply, the lighting module 1112 is connected to the power supply and can operate normally during the connection process. When the drive module 1111 disconnects the path between the lighting module 1112 and the power supply, the lighting module 1112 is disconnected from the power supply and stops operating.

[0042] In some implementations, the number of control signals may be one, and the lighting module 1112 may include one or more lighting units. The control signals may be used to control all lighting units to operate.

[0043] In other embodiments, there may be multiple control signals. The lighting module 1112 may include multiple lighting sub-modules, each lighting sub-module corresponding to one of the control signals. The control signals can be used to control the corresponding lighting sub-module to work, thereby enabling individual control of different lighting sub-modules.

[0044] Optionally, the lighting submodule includes multiple RGB light-emitting sub-units connected in series. The RGB light-emitting units can achieve a full-color effect by mixing the three primary colors of red, green, and blue, and the desired lighting effect can be achieved by controlling the mixing and on / off states of different lights in the RGB light-emitting units.

[0045] Optionally, the lighting submodule also includes multiple white light emitting units; the multiple white light units are connected in series, and the multiple white light units are connected in parallel with multiple RGB light emitting units. By increasing the white light control, the lighting effect can be further enriched.

[0046] Please see Figure 2 , Figure 2 A schematic diagram of another lighting control system provided in an embodiment of this application is shown, as follows: Figure 2 As shown, the drive module 1111 includes a first boost unit 11111 and a first switching unit 11112.

[0047] The first boost unit 11111 is used to boost the control signal and generate a first boost control signal.

[0048] In some implementations, the control signal generated by the control chip in the control circuit 121 is a pulse width modulation (PWM) signal, and the voltage of the PWM signal generated by the control chip is low (e.g., 3.3V or 5V).

[0049] The first switching unit 11112 may include a switching transistor, such as a MOSFET (Metal-Oxide-Semiconductor Field-Effect Transistor), a BJT (Bipolar Junction Transistor), or an IGBT (Insulated Gate Bipolar Transistor). Taking a MOSFET as an example, a MOSFET typically requires a voltage higher than its threshold voltage to be applied to its gate to fully conduct (e.g., 10V, 12V, or even higher), thereby connecting the power supply and the lighting module 1112. However, the low-voltage control signal output by the control chip is insufficient to fully turn on the MOSFET or to put it in an unstable state. Therefore, the first boost unit 11111 needs to convert the low-voltage control signal of the control circuit into a first boost control signal that can drive the first switching unit 11112 to operate.

[0050] For example, the first boost unit 11111 can be a switching transistor driver chip, a push-pull circuit, etc., and there are no restrictions here.

[0051] It is understood that this application is not limited to this, and the drive module 1111 may also include other necessary components, such as a filter unit, a protection unit between the first switching unit 11112 and the power supply (such as a freewheeling diode connected between the drain of the MOSFT and the positive terminal of the power supply), etc.

[0052] Please see Figure 3 , Figure 3 A schematic diagram of another lighting control system provided in an embodiment of this application is shown, such as... Figure 3 As shown, the first switching unit 11112 includes a control terminal 11112a, a first switching terminal 11112b, and a second switching terminal 11112c; wherein, the control terminal 11112a is connected to the first boost unit 11111, and the first switching terminal 11112b and the second switching terminal 11112c are connected in series with the lighting module 1112 and the power supply; for example, the first switching terminal 11112b is connected to the power supply, and the second switching terminal 11112c is connected to the lighting module 1112.

[0053] The control terminal 11112a is used to control the on / off state of the path between the first switch terminal 11112b and the second switch terminal 11112c. When the first switch terminal 11112b and the second switch terminal 11112c are connected, the path between the power supply and the lighting module 1112 is connected; when the first switch terminal 11112b and the second switch terminal 11112c are disconnected, the path between the power supply and the lighting module 1112 is disconnected.

[0054] Please see Figure 4 , Figure 4 A schematic diagram of another lighting control system provided in an embodiment of this application is shown, as follows: Figure 4 As shown, the lighting module 1112 includes multiple lighting sub-modules 11121, and the driving module 110 includes multiple first boost units 11111 and multiple first switching units 11112; the number of control signals is multiple; the number of control signals is the same as the number of first boost units 111; the number of first boost units 111 is the same as the number of first switching units 11112, and the number of first switching units 1111 is the same as the number of lighting sub-modules 11121.

[0055] Multiple first boost units 11111 correspond one-to-one with multiple first switching units 11112, and multiple first switching units 11112 correspond one-to-one with multiple lighting sub-modules 11121.

[0056] The first boost unit 11111 is connected to the corresponding first switch unit 11112; the first switch unit 11112 is connected to the corresponding lighting submodule 11121.

[0057] The lighting control module 1211 can be connected to multiple first boost units 11111 respectively. The lighting control module 1211 can generate multiple different control signals, which are used to control the working state of multiple lighting sub-modules 11121. This allows for simultaneous control of different lighting sub-modules 11121. The lighting control module 1211 and the multiple first boost units 11111 use low-voltage control signals for transmission. Compared with high-voltage drive signals in related technologies, this can effectively reduce electromagnetic interference between the control circuit 121 and the lighting circuit 111.

[0058] Please see Figure 5 , Figure 5 A schematic diagram of another lighting circuit provided in an embodiment of this application is shown. Figure 5 As shown, the drive module 1111 includes a lighting control unit 11113, a second boost unit 11114, and a second switch unit 11115.

[0059] The lighting control unit 11113 is used to receive control signals sent by the control circuit 121; the lighting control unit 11113 is used to generate lighting control signals according to the control signals.

[0060] The second boost unit 11114 is connected to the lighting control unit 11113. The second boost unit 11114 is used to boost the lighting control signal and generate a second boost control signal.

[0061] The second switching unit 11115 is connected to the second boost unit 11114, and the second switching unit 11115 is used to generate a drive signal according to the second boost control signal.

[0062] In the embodiments of this application, the control signal is a digital communication protocol signal. The lighting control unit 11113 communicates with the control circuit 121 to obtain the control signal. The lighting control unit 11113 can parse the control signal to obtain control information for the lighting module 1112, and generate a low-voltage lighting control signal based on the control information. The lighting control signal can be a pulse width modulation signal.

[0063] Unlike the above embodiments, in this embodiment, the low-voltage pulse width modulation signal is also generated internally by the lighting circuit 111. The control circuit 121 transmits a digital communication protocol signal to the lighting circuit 111. The voltage of the digital communication protocol signal is low. After the control circuit 121 sends the control signal to the lighting control unit 11113, during the operation of the lighting module 1112, the lighting control unit 11113 generates a continuous pulse width modulation signal for subsequent control. The control circuit 121 and the lighting control unit 11113 do not need to transmit signals continuously, thereby further reducing the electromagnetic interference between the control circuit 121 and the lighting circuit 111.

[0064] Optionally, the lighting control unit 11113 may include a microcontroller unit (MCU). The lighting control signal generated by the lighting control unit 11113 is a pulse width modulation (PWM) signal with a low voltage, such as 3.3V or 5V.

[0065] The second switching unit 11115 may include a switching transistor, such as a MOSFET (Metal-Oxide-Semiconductor Field-Effect Transistor), a BJT (Bipolar Junction Transistor), or an IGBT (Insulated Gate Bipolar Transistor). Taking a MOSFET as an example, a MOSFET typically requires a voltage higher than its threshold voltage to be applied to its gate to fully conduct (e.g., 10V, 12V, or even higher), thereby connecting the power supply and the lighting module 1112. However, a low-voltage lighting control signal is insufficient to fully conduct the MOSFET or cause it to be in an unstable state. Therefore, a second boost unit 11114 is needed to convert the low-voltage control signal from the lighting control unit 11113 into a second boost control signal that can drive the second switching unit 11115. For example, the second boost unit 11114 may be a switching transistor driver chip, a push-pull circuit, etc., and there are no restrictions here.

[0066] In some implementations, the control signals can adopt SPI (Serial Peripheral Interface) communication protocol, UART (Universal Asynchronous Receiver / Transmitter) communication protocol, I²C (Inter-Integrated Circuit) communication protocol, etc., and can be set according to actual needs.

[0067] Please see Figure 6 , Figure 6 A schematic diagram of another lighting circuit 111 provided in an embodiment of this application is shown, as follows: Figure 6 As shown, the lighting control unit 11113 includes a first serial port interface 11113a, and the lighting control module 1211 includes a second serial port interface 1211a. The first serial port interface 11113a is used to connect to the second serial port interface 1211a.

[0068] In the embodiments of this application, the control signal adopts the UART communication protocol. UART is a hardware communication protocol used for asynchronous serial communication between devices (without clock signal synchronization). It converts data between parallel formats (such as the internal bus of an MCU) and serial formats (single-wire transmission).

[0069] In this way, the lighting control unit 11113 and the control circuit 121 communicate via URAT, and the connecting cable between the control circuit 121 and the lighting control unit 11113 can be made longer, which is convenient for users to install. Moreover, since the lighting control unit 11113 and the control circuit 121 communicate via URAT, the electromagnetic interference energy generated between the lighting control unit 11113 and the control circuit will be smaller, which is convenient for EMI rectification and is suitable for application scenarios with strict EMI requirements.

[0070] Please see Figure 7 , Figure 7 A schematic diagram of another lighting control system provided in an embodiment of this application is shown, such as... Figure 7 As shown, the control circuit 121 also includes a wireless communication module 1212, and the drive module 1111 also includes a wireless communication unit 11116.

[0071] Among them, the wireless communication module 1212 is used to send control signals to the wireless communication unit 11116 via wireless communication; The wireless communication unit 11116 is connected to the lighting control unit 11113, and the wireless communication unit 11116 is used to send control signals to the lighting control unit 11113.

[0072] In some implementations, the wireless communication module 1212 may employ wireless communication methods such as WIFI (Wireless Fidelity), Bluetooth, or Zigbee.

[0073] In some implementations, the wireless communication unit 11116 may employ wireless communication methods such as WIFI (Wireless Fidelity), Bluetooth, or Zigbee.

[0074] It is understandable that the wireless communication module 1212 and the wireless communication unit 11116 use the same wireless communication method.

[0075] In the embodiments of this application, since the control signal transmitted between the control circuit 121 and the lighting circuit 111 is a digital communication protocol signal, wireless communication can be used for communication.

[0076] The use of wireless communication eliminates the need for connecting cables, further reducing electromagnetic interference between the lighting circuit 111 and the control circuit 121. Furthermore, the removal of connecting cables allows for more flexible layout configurations between the lighting circuit 111 and the control circuit 121.

[0077] Please see Figure 8 , Figure 8 A schematic diagram of another lighting control system provided in an embodiment of this application is shown, such as... Figure 8 As shown, the lighting module 1112 includes multiple lighting sub-modules 11121, and the driving module 1111 includes multiple second boost units 11114 and multiple second switching units 11115; the number of lighting control signals is multiple; the number of lighting control signals is the same as the number of second boost units 11114; the number of second boost units 11114 is the same as the number of second switching units 11115; the number of second switching units 1115 is the same as the number of lighting sub-modules 11121.

[0078] Multiple lighting control signals correspond one-to-one with multiple second boost units 11114; multiple second boost units 11114 correspond one-to-one with multiple second switching units 11115; and multiple second switching units 11115 correspond one-to-one with multiple lighting sub-modules 11121.

[0079] The second boost unit 11114 is used to receive the corresponding lighting control signal; the second boost unit 11114 is connected to the corresponding second switch unit 11115; the second switch unit 11115 is connected to the corresponding lighting submodule 11121.

[0080] Therefore, different lighting sub-modules 11121 can be controlled simultaneously. The lighting control module 1211 can transmit control information for different lighting sub-modules 11121 simultaneously through a single control signal. Compared with related technologies, which require multiple connection lines to transmit different control information separately, the lighting control system provided in this application embodiment can effectively simplify the layout of the lighting control system while controlling multiple lighting sub-modules 11121, and further reduce electromagnetic interference between the lighting circuit 111 and the control circuit 121.

[0081] Please see Figure 9 , Figure 9This application provides a schematic diagram of another lighting control system according to an embodiment of the present application. Figure 9 As shown, the control circuit 121 also includes a filtering module 1213, which is connected to the lighting control module 1211. The filtering module 1213 is used to filter the control signal to form a filtered control signal; the drive module 1111 is used to receive the filtered control signal.

[0082] High-frequency harmonics in the control signal can radiate outward through the connecting line, causing serious EMI interference. Before the control signal is sent, the high-frequency harmonics in the control signal are filtered out as much as possible through the filter module 1213, which can reduce the electromagnetic interference between the control circuit 121 and the lighting circuit 111.

[0083] In some implementations, the filtering module 1213 may include capacitors, resistors, etc. For example, a resistor-capacitor low-pass filter may be used. The specific filtering module can be set according to the harmonic situation of the actual control signal, and this application does not limit it.

[0084] In summary, the lighting control system provided in this application includes: a lighting device and a control box. The lighting device includes a lighting circuit; the control box includes a control circuit; the control circuit includes a lighting control module, which is used to receive operation signals and generate control signals based on the operation signals; the lighting circuit includes: a drive module and a lighting module; the drive module is used to receive control signals and generate drive signals based on the control signals; the lighting module is connected to the drive module and operates according to the drive signals; wherein, the voltage of the control signal is lower than the voltage of the drive signal, thereby transferring the higher voltage drive signal to be generated inside the lighting circuit. The higher voltage drive signal is only transmitted inside the lighting circuit, which can effectively reduce electromagnetic interference between the lighting device and the control box.

[0085] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application.

Claims

1. A lighting control system, characterized in that, The lighting control system includes: a lighting device and a control box; wherein the lighting device includes a lighting circuit; and the control box includes a control circuit. The control circuit includes a lighting control module, which is used to receive operation signals and generate control signals based on the operation signals. The lighting circuit includes: a driving module and a lighting module; The drive module is used to receive the control signal; the drive module is also used to generate a drive signal based on the control signal; The lighting module is connected to the driving module, and the lighting module is used to operate according to the driving signal; wherein the voltage of the control signal is less than the voltage of the driving signal.

2. The lighting control system according to claim 1, characterized in that, The driving module of the lighting circuit includes a first boost unit and a first switching unit. The first boost unit is used to boost the control signal to generate a first boost control signal; the first switching unit is used to generate a driving signal based on the first boost control signal. The control signal is a pulse width modulation signal.

3. The lighting control system according to claim 2, characterized in that, The first switching unit includes a control terminal, a first switching terminal, and a second switching terminal; wherein, the control terminal is connected to the first boost unit, and the first switching terminal and the second switching terminal are connected in series with the lighting module; the control terminal is used to control the on / off state of the path between the first switching terminal and the second switching terminal.

4. The lighting control system according to claim 2, characterized in that, The lighting module includes multiple lighting sub-modules, and the driving module includes multiple first boost units and multiple first switching units; the number of control signals is multiple; the number of control signals is the same as the number of first boost units; the number of first boost units is the same as the number of first switching units, and the number of first switching units is the same as the number of lighting sub-modules; The plurality of control signals correspond one-to-one with the plurality of first boost units; the plurality of first boost units correspond one-to-one with the plurality of first switching units; and the plurality of first switching units correspond one-to-one with the plurality of lighting sub-modules. The first boost unit is used to receive the corresponding control signal; the first boost unit is connected to the corresponding first switch unit; the first switch unit is connected to the corresponding lighting submodule.

5. The lighting control system according to claim 2, characterized in that, The first switching unit includes a metal-oxide-semiconductor field-effect transistor.

6. The lighting control system according to claim 1, characterized in that, The driving module of the lighting circuit includes a lighting control unit, a second boost unit, and a second switching unit; The lighting control unit is used to receive the control signal; the lighting control unit is used to generate a lighting control signal based on the control signal; The second boost unit is connected to the lighting control unit, and the second boost unit is used to generate a second boost signal according to the lighting control signal; The second switching unit is connected to the second boost unit, and the second switching unit is used to generate a drive signal according to the second boost signal; The control signal is a digital communication protocol signal.

7. The lighting control system according to claim 6, characterized in that, The lighting control unit includes a first serial port interface, and the lighting control module includes a second serial port interface. The second serial port interface and the first serial port interface are connected by a connecting cable.

8. The lighting control system according to claim 6, characterized in that, The control circuit further includes a wireless communication module, and the drive module further includes a wireless communication unit; The wireless communication module is used to send the control signal to the wireless communication unit; The wireless communication unit is connected to the lighting control unit, and the wireless communication unit is used to send the control signal to the lighting control unit wirelessly.

9. The lighting control system according to claim 6, characterized in that, The lighting module includes multiple lighting sub-modules, and the driving module includes multiple second boost units and multiple second switching units; the number of lighting control signals is multiple; the number of lighting control signals is the same as the number of second boost units; the number of second boost units is the same as the number of second switching units; the number of second switching units is the same as the number of lighting sub-modules. Multiple lighting control signals correspond one-to-one with multiple second boost units; the multiple second boost units correspond one-to-one with the multiple second switching units, and the multiple second switching units correspond one-to-one with the multiple lighting sub-modules; The second boost unit is used to receive the corresponding lighting control signal; the second boost unit is connected to the corresponding second switch unit; the second switch unit is connected to the corresponding lighting submodule.

10. The lighting control system according to claim 1, characterized in that, The control circuit further includes a filtering module connected to the lighting control module. The filtering module is used to filter the control signal to form a filtered control signal. The drive module is used to receive the filtered control signal.

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