Illuminating system free of control line distribution

Abstract

The invention provides an illumination system without arranging a control line. The illumination system comprises a control panel, an illumination driving power supply, a power line, a first power line carrier module and a second power line carrier module, the first power line carrier module is used for modulating a control signal of the control panel to a power line, and demodulating and feeding back state information, monitored by the second power line carrier module, of the lighting driving power supply to the control panel; the second power line carrier module is used for demodulating a control signal sent to a power line by the first power line carrier module to the dimming driving power supply, and the first power line carrier module in the control panel and the second power line carrier module in the lighting driving power supply have the same signal control protocol. And the first power line carrier module and the second power line carrier module are responsible for realizing communication of signals of the control protocol through a power line, so that intelligent control of the lighting system is realized without arranging a control line.

Description

Technical Field

[0001] The present invention relates to the technical field of lighting circuits, and in particular to a lighting system free of control wires. Background Art

[0002] Current smart lighting systems utilize driver power supplies with different control protocols. Most lighting fixtures use standard power supplies without dimming capabilities. Those with dimming capabilities employ varying dimming methods, including PWM dimming or PWM color adjustment, 0 / 1-10V dimming, DALI dimming, and other proprietary protocols. Different dimming methods require different dimming control cables, which must be connected from the control panel to the control port of the corresponding lighting driver. In real life, when faced with different dimming or non-dimming lighting fixtures, different control methods must be configured according to the different control protocols, and the control cable routing required for each control method is also different. For standard lighting fixtures, a mechanical wall switch must be used. The mechanical control panel must be connected in series with the live wire of the lighting fixture to be controlled and installed in an appropriate location. A 0 / 1-10V dimming driver requires a 0-10V dimmer for dimming, which also requires separate control wiring. The number of lighting devices the dimmer can support varies depending on the application and the number of driven lighting devices. A DALI dimming driver can only be dimmed using a DALI dimming panel. DALI control wiring requires a dedicated power supply, making system implementation complex. Laying these control wiring significantly limits the intelligent transformation of lighting equipment.

[0003] The existing wire-free control system is mainly realized through wireless network. However, wireless network needs to add wireless network control modules and gateways to realize intelligent lighting system. At the same time, the signal stability of wireless network signal transmission cannot be guaranteed due to different environmental conditions. If the application scenario is relatively large, the signal needs to be amplified, which increases the system application cost and ensures its reliability.

[0004] However, the current usage environment is either reinforced concrete or steel structure shell, which seriously affects the signal transmission of wireless networks and leads to poor stability.

[0005] Therefore, communicating through the power line carrier module can realize the unique advantage of "power + network" multiplexing. Compared with traditional wireless solutions, the system application cost and communication reliability are more advantageous, which effectively improves the convenience of smart lighting implementation. Summary of the Invention

[0006] The present invention provides a lighting system that does not require the laying of control lines, so as to solve the defects of low construction efficiency and poor stability during the implementation of wiring dimming or wireless dimming projects in the lighting system of the prior art.

[0007] In a first aspect, the present invention provides a lighting system that does not require wiring of control lines, comprising: a control panel, a lighting driving power supply, a power line, a first power line carrier module and a second power line carrier module;

[0008] The first power line carrier module is connected to the control panel, the second power line carrier module is connected to the lighting driving power supply, and the first power line carrier module and the second power line carrier module are respectively connected to the power line;

[0009] The first power line carrier module is used to modulate the control signal of the control panel onto the power line, and secondly, it can also demodulate the status information of the lighting driving power supply monitored by the second power line carrier module and feed it back to the control panel. The control signal is generated based on the status information, and the control panel reflects the status information of the lighting driving, such as whether the light is on or off; the second power line carrier module is used to demodulate the control signal on the power line to the lighting driving power supply, and at the same time modulate the status information of the lighting driving power supply monitored onto the power line.

[0010] According to a lighting system without laying control lines provided by the present invention, the first power line carrier module includes: a modulation / demodulation control module and a power supply;

[0011] The modulation / demodulation control module is used to convert different dimming protocols into PLC power line carrier protocols;

[0012] The power supply is used to supply power to the modulation / demodulation control module.

[0013] According to the lighting system without control wires provided by the present invention, the control panel is powered by the power supply.

[0014] According to the lighting system without control wires provided by the present invention, the control panel is powered by the power wires.

[0015] According to a lighting system that does not require control wiring provided by the present invention, the different dimming protocols include at least one of a DALI dimming protocol, a 0 / 1-10V dimming protocol, a PWM dimming protocol, a thyristor dimming protocol, and a custom private dimming protocol.

[0016] According to a control line-free lighting system provided by the present invention, the first power line carrier module is integrated into the control panel, and the second power line carrier module is integrated into the lighting driving power supply.

[0017] According to a control line-free lighting system provided by the present invention, the first power line carrier module is independently arranged inside the control panel, and the second power line carrier module is independently arranged outside the lighting driving power supply.

[0018] According to a lighting system without laying control wires provided by the present invention, the lighting driving power supply is connected to the light source;

[0019] The lighting driving power supply is used to drive the brightness and color temperature of the light source according to the change of the control signal to achieve the change of the control state.

[0020] According to the lighting system without laying control wires provided by the present invention, the control panel and the light sources are matched in a many-to-one manner.

[0021] According to the lighting system without laying control wires provided by the present invention, the control panel and the light sources are matched in a many-to-many manner.

[0022] The present invention provides a lighting system that does not require control lines, including: a control panel, a lighting drive power supply, a power line, a first power line carrier module and a second power line carrier module; the first power line carrier module is connected to the control panel, the second power line carrier module is connected to the lighting drive power supply, and the first power line carrier module and the second power line carrier module are respectively connected to the power line; the first power line carrier module is used to modulate the control signal of the control panel on the power line, and the second power line carrier module is used to demodulate the control signal on the power line to the lighting drive power supply, and at the same time modulate the status information of the lighting drive power supply monitored on the power line. The protocol conversion communication method through the power line carrier module is simpler and more efficient than wiring or wireless transmission, and effectively improves the dimming efficiency and stability of the lighting system. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions in the present invention or the prior art, a brief introduction is given below to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0024] Figure 1 This is a schematic diagram of the principle of the control wire-free lighting system provided by this embodiment;

[0025] Figure 2 This is a system diagram of data communication via a power line carrier using different control protocols provided in this embodiment;

[0026] Figure 3 This is a system diagram of multiple control centers controlling multiple devices provided by this embodiment. DETAILED DESCRIPTION

[0027] To make the objectives, technical solutions, and advantages of the present invention more clear, the technical solutions of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the embodiments described are only some 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.

[0028] Figure 1 This is a schematic diagram of the principle of a lighting system without control wires provided in this embodiment.

[0029] like Figure 1 As shown, an embodiment of the present invention provides a lighting system that does not require control lines, including: a control panel 1, a lighting drive power supply 4, a power line 3, a first power line carrier module 2 and a second power line carrier module 5; the first power line carrier module 2 is connected to the control panel 1, and the control part in the control panel 1 has functions such as adjusting color temperature, adjusting brightness, turning on and off, etc. The second power line carrier module 5 is connected to the lighting driving power supply 4, and the first power line carrier module 2 and the second power line carrier module 5 are respectively connected to the power line 3; the first power line carrier module 2 is used to modulate the control signal of the control panel 1 onto the power line 3, and demodulate the status information of the lighting driving power supply monitored by the second power line carrier module 5 to feed back to the control panel. The control signal is generated based on the status information, and the control panel reflects the status information of the lighting drive, such as whether the light is on or off; the second power line carrier module 5 is used to demodulate the control signal on the power line 3 to the lighting driving power supply 4, and can also modulate the status information monitored by the lighting driving power supply 4 on the power line. The status information includes the brightness of the lighting, color temperature information, whether the operation is normal, etc.; the lighting driving power supply 4 is connected to the light source, and the lighting driving power supply 4 is used to drive the brightness and color temperature of the light source according to the changes in the control signal to achieve changes in the control state.

[0030] The power line carrier module within the control panel and lighting driver power supply can convert existing different dimming protocols, such as the DALI two-cable transmission protocol, into a power line carrier communication digital bus protocol through the protocol converter (protocol router) within the power line carrier module. This protocol is then transmitted to each terminal control actuator (sub-node - lighting driver power supply) of the system via the existing power line network. Each control actuator (sub-node - lighting driver power supply) connected to the DALI system has a built-in or external power line carrier module, thus enabling data exchange and real-time interaction between the master and slave ends. The conversion of different dimming protocols to the power line carrier protocol is implemented by the software program within the MCU. For example, if we want to achieve intelligent transformation of ordinary non-dimming power supplies, we only need to connect a power line carrier control switch in series with the lighting driver power supply, output a control signal to control a thyristor or relay, and then realize the intelligent transformation of ordinary lighting. For other dimming driver power supplies, we need to adjust the software program through the MCU in the power line carrier module. If the driver power supply is a DALI signal, we adjust the output signal to a DALI signal. If the driver power supply is a 0-10V signal, we adjust the output signal to a 0-10V signal, and so on, to realize the distributed application of the system.

[0031] In a specific implementation, the first power line carrier module 2 is a modulation module that modulates the signal from the control panel 1 and converts it into the PLC power line carrier protocol. This allows the control signal to be transmitted via the power line 3. The second power line carrier module 5 then demodulates the control signal, allowing the lighting driver 4 to receive the control signal from the control panel 1 and further control the light source.

[0032] For different control panels 1, there may be a variety of different dimming protocols, including at least one of the DALI dimming protocol, 0 / 1~10V dimming protocol, PWM dimming protocol, thyristor dimming protocol, and custom private dimming protocol. Therefore, the first power line carrier module 2 and the second power line carrier module 5 correspond to each other, and can realize the conversion of various protocols, and can realize modulation and demodulation with the PLC power line carrier protocol. Figure 2 As shown in FIG, it is a system diagram of data communication using different control protocols via power line carrier.

[0033] Figure 3 This is a system diagram of multiple control centers controlling multiple devices provided by this embodiment.

[0034] like Figure 3As shown, the original one-to-one control terminal can be changed to many-to-one. Multiple control terminals can control one device, or multiple control terminals can control multiple devices. Different control panels have their own address codes, and different devices (lights) also have their own address codes. The setting of the address code is completed on the power line carrier module without changing the existing system, thereby realizing multi-master and multi-slave data interaction and real-time interaction.

[0035] Because all control panels and lighting drivers are connected to the power line, which serves as both a power supply and a communication line, control panels are connected to corresponding lighting devices through physical addresses. When a lighting device is controlled through one of the control panels, the corresponding control command is broadcast to the power line, and the lighting devices that have established a physical address connection with the control panel will perform the corresponding control actions according to the applied control command. Therefore, this intelligent lighting system implemented through power line carrier can achieve many-to-many control and many-to-one control between control panels and lighting devices. Compared with traditional lighting, where a single control panel can only control multiple lighting devices connected to it or a single lighting device, the intelligent lighting system is greatly improved.

[0036] This invention is compatible with lighting fixtures with different drive power supplies. For ordinary lighting (non-dimming), it is only necessary to add a PLC intelligent switch in the form of a thyristor or relay to the AC input line and replace the original control panel with an intelligent panel to achieve intelligent transformation. This solution has many advantages. Compared with the original lighting fixture wiring, it is no longer necessary to pull the live wire of the lamp to the mechanical control panel. The LED lighting fixture only needs to be mounted on the AC AC line. The control panel is no longer restricted by the wiring and can be set to a convenient location at will, which can greatly save the cost of wire materials. It is also possible to integrate switches for different areas on the same control panel, so that remote lighting equipment can be turned off nearby, without having to use specific switches to turn off specific lights.

[0037] Furthermore, in this embodiment, the first power line carrier module 2 is integrated into the control panel 1, and the second power line carrier module 5 is integrated into the lighting driver power supply 4. The first power line carrier module 2 is independently arranged outside the control panel 1, and the second power line carrier module 5 is independently arranged outside the lighting driver power supply 4. The integration makes the control panel 1 and the lighting driver power supply 4 more concise and more integrated. By setting them independently externally, the first power line carrier module 2 and the second power line carrier module 5 can be inspected and repaired at any time, which is relatively flexible. The built-in solution can be applied to newly installed lighting systems, reducing wiring costs. The external solution can be applied to the renovation of existing projects. Only the first power line carrier module 2 and the second power line carrier module 5 need to be added to the original project to achieve intelligent renovation, and the renovation cost is low.

[0038] The power line carrier scheme modulates existing dimming signals. Regardless of the dimming protocol (public or private), it is converted to the power line carrier transmission protocol for transmission. The biggest advantage is that different dimming protocols can share the dimming transmission network without changing the original lighting equipment and drive method, making it easy to use. The unique power line carrier communication link fully digital protocol enables the system to achieve an extremely high communication signal-to-noise ratio with minimal power consumption, which is more conducive to avoiding and resisting strong grid interference and integrating advanced high-efficiency power supply and low-power technology applications.

[0039] Both the first and second PLC modules 2 and 5 are equipped with independent, self-powered power systems. Utilizing high-voltage step-down and voltage stabilization technology, the modulation / demodulation control module consumes less than 10mW in standby mode and less than 30mW in data transmission and reception mode. This power supply system not only meets the system's own power requirements but also provides auxiliary power for peripheral devices.

[0040] Existing wired lighting systems require the addition of independent control signal lines between the control panel and the control lighting driver power supply 4. For example, DALI dimming requires the addition of two DALI signal lines. If DALI dimming and color adjustment are to be used, three signal lines are required. 0-10V dimming requires the addition of 0-10V dimming lines, and so on. At the same time, DALI and 0-10V dimming lines are independent and cannot be shared. Therefore, different dimming methods require their own independent dimming control lines, which results in high application costs, inconvenience in use, and difficulty in market promotion.

[0041] Therefore, taking DALI dimming as an example, a first power line carrier module 2 is loaded on the DALI-specific dimming panel, and a second power line carrier module 5 is added to the DALI dimming driving power supply. The first power line carrier module 2 (loading module) on the control panel 1 converts the DALI control signal protocol into a low-voltage power line carrier communication digital bus protocol and sends it on the power line. The second power line carrier module 5 (demodulation module) on the DALI dimming driving power supply on the same power line converts the power line carrier communication signal into a DALI protocol signal, thereby controlling the color and brightness changes of the lighting equipment. After the DALI dimming signal is loaded onto the power line through the power line carrier module, the original DALI signal line can be saved. The saved signal line saves two parts in terms of cost: one is the wiring cost of the DALI signal line itself, and the other is the labor cost saved in the wiring process of the DALI signal line, which greatly saves problems in system application.

[0042] DALI stands for "Digital Addressable Lighting Interface." The most significant feature of the DALI dimming system is that each luminaire has a unique address, enabling precise control of each luminaire through the DALI system software. Because each luminaire has an independent address, it is possible to address and control luminaires within the same power circuit, across different power circuits, or combinations of luminaires within circuits individually or in any group, offering exceptional flexibility. Users can freely design and adjust lighting solutions based on their needs.

[0043] Therefore, DALI dimming system control is bidirectional, transmitting not only control signals to the lighting fixtures but also returning information about their current operating status. With the addition of power line carrier technology, DALI dimming can support more loads per channel, extending beyond the current 64-device limit. This simplifies the system and enriches applications.

[0044] Taking 0-10V dimming as an example, the original 0-10V dimmers generally use knob switches or electronic slider switches. With the support of power line carrier, the control signals of multiple 0-10V power supplies can be mounted on the same control panel. The dimming method is similar to the DALI method. One panel can control multiple devices, enriching and expanding the use scenarios of 0-10V. At the same time, the application cost of 0-10V is also lower than that of DALI dimming.

[0045] The 0-10V control line-free application is to load the 0-10V dimming signal onto the power line through the first power line carrier module 2, and the original 0-10V signal line can be saved. The saved signal line saves two parts in terms of cost: one is the wiring cost of the 0-10V signal line itself, and the other is the labor cost saved in the wiring process of the 0-10V signal line, which greatly avoids problems in system application.

[0046] The 0-10V dimming system is unidirectional. The panel (control center) only sends control signals to the device, so the power line carrier module does not require signal feedback. Therefore, the cost of the power line carrier module is lower than that of the DALI version of the power line carrier module. If the actual application needs to detect the working status of the power supply, input and output power, etc., it is only necessary to add the corresponding signal feedback function to the power line carrier module.

[0047] The device embodiments described above are merely illustrative. The units described as separate components may or may not be physically separate, and the components shown as units may or may not be physical units, i.e., they may be located in one location or distributed across multiple network units. Some or all of the modules may be selected based on actual needs to achieve the objectives of the present embodiment. Persons of ordinary skill in the art will be able to understand and implement the present invention without inventive effort.

[0048] Through the description of the above embodiments, those skilled in the art can clearly understand that each embodiment can be implemented by means of software plus a necessary general hardware platform, or of course, by hardware. Based on this understanding, the essence of the above technical solution or the part that contributes to the existing technology can be embodied in the form of a software product. The computer software product can be stored in a computer-readable storage medium, such as ROM / RAM, a magnetic disk, an optical disk, etc., and includes a number of instructions for enabling a computer device (which can be a personal computer, a server, or a network device, etc.) to execute the methods described in each embodiment or certain parts of the embodiments.

[0049] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A lighting system without control wires, characterized in that: include: A control panel, a lighting driving power supply, a power line, a first power line carrier module and a second power line carrier module; The first power line carrier module is connected to the control panel, the second power line carrier module is connected to the lighting driving power supply, and the first power line carrier module and the second power line carrier module are respectively connected to the power line; The first power line carrier module is used to modulate the control signal of the control panel on the power line, and at the same time demodulate the status information of the lighting driving power supply monitored by the second power line carrier module and feed it back to the control panel, and the control signal is generated based on the status information; the second power line carrier module is used to demodulate the control signal sent by the first power line carrier module on the power line to the dimming driving power supply, and at the same time modulate the status information of the lighting driving power supply monitored on the power line.

2. The control wire-free lighting system according to claim 1, characterized in that: The first power line carrier module includes: a modulation / demodulation control module and a power supply; The modulation / demodulation control module is used to demodulate the dimming control signals of different protocols into PLC power line carrier signals, and modulate the PLC power line carrier signals into dimming control signals of different protocols; The power supply is used to supply power to the modulation / demodulation control module.

3. The control wire-free lighting system according to claim 2, characterized in that: The control panel is powered by the power supply.

4. The control wire-free lighting system according to claim 2, characterized in that: The power supply is supplied via the power line.

5. The control wire-free lighting system according to claim 2, characterized in that: The different dimming protocols include at least one of a DALI dimming protocol, a 0 / 1-10V dimming protocol, a PWM dimming protocol, a thyristor dimming protocol, and a custom private dimming protocol.

6. The control wire-free lighting system according to claim 1, characterized in that: The first power line carrier module is integrated into the control panel, and the second power line carrier module is integrated into the lighting driving power supply.

7. The control wire-free lighting system according to claim 1, characterized in that: The first power line carrier module is arranged outside the control panel, and the second power line carrier module is independently arranged outside the lighting driving power supply.

8. The control wire-free lighting system according to claim 1, characterized in that: The lighting driving power supply is connected to the light source; The lighting driving power supply is used to drive the brightness and color temperature of the light source according to the change of the control signal to achieve the change of the control state.

9. The control wire-free lighting system according to claim 8, characterized in that: The control panel is matched with the light source in a many-to-one manner.

10. The control wire-free lighting system according to claim 8, characterized in that: The control panel and the light sources are matched in a many-to-many manner.

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