Lighting system

Abstract

The utility model belongs to the technical field of lighting devices, and particularly provides a lighting system which comprises a control module, an environment detection module, a white light emitting module and a golden light emitting module, and the golden light emitting module comprises a yellow light emitting assembly and a red light emitting unit. When the environment detection module detects that the weather condition is good, the control module only lightens the white light emitting module, and when the environment detection module detects that the weather condition is bad, the control module lightens the golden yellow light emitting module and simultaneously closes the white light emitting module or keeps lightening the white light emitting module. Yellow light emitted by the yellow light emitting assembly and red light emitted by the red light emitting unit are mixed to obtain golden yellow light with the color temperature ranging from 1700 K to 2500 K, compared with white light, the golden yellow light is lower in color temperature, longer in wavelength and weaker in scattering in environments such as rain, fog and dust, penetrating power can be improved, the effective lighting distance can be increased, and therefore driving safety is improved.

Description

Technical Field

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

[0002] Currently, road lighting typically uses white or yellow light, which is close to natural light, has good color rendering, and can accurately reproduce the colors of objects. It provides excellent lighting in good weather conditions, but its penetrating power is weak in adverse weather conditions such as rain, fog, and dust, making it difficult for drivers to see the road conditions and thus reducing driving safety. Utility Model Content

[0003] The purpose of this application is to provide a lighting system that addresses the technical problem of weak penetration of existing road lighting lights in adverse weather conditions such as rain, fog, and dust.

[0004] On the one hand, to achieve the above objectives, the technical solution adopted in this application is: a lighting system, including a control module, an environmental detection module, a white light emission module, and a golden light emission module. The golden light emission module includes a yellow light emission component and a red light emission unit. The yellow light emission component and the red light emission unit cooperate to emit golden light with a color temperature of 1700K-2500K. The control module is electrically connected to the environmental detection module, the white light emission module, and the golden light emission module. The control module can light up the white light emission module and / or the golden light emission module according to the detection results of the environmental detection module.

[0005] Compared with existing technologies, the beneficial effects of the lighting system provided in this application are as follows: When the environmental detection module detects good weather conditions, the control module only illuminates the white light-emitting module. The white light emitted by the white light-emitting module is close to natural light, has good color rendering, and can accurately reproduce the colors of objects, avoiding the risk of increased driver misjudgment due to color distortion of traffic signs and pedestrian clothing. At the same time, it is less likely to cause visual fatigue, thereby improving driving safety. When the environmental detection module detects severe weather conditions, such as rain, fog, or dust, the control module illuminates the golden light-emitting module while turning off the white light-emitting module or keeping the white light-emitting module illuminated. When the golden light-emitting module is working, the yellow light emitted by the yellow light-emitting component mixes with the red light emitted by the red light-emitting unit to obtain golden light with a color temperature of 1700K-2500K. Compared with white light, golden light has a lower color temperature and a longer wavelength, and its scattering is weaker in environments such as rain, fog, and dust, which can improve penetration and increase the effective lighting distance, thereby improving driving safety.

[0006] Furthermore, the golden yellow light-emitting module also includes a first support, the first support having a first bowl; the yellow light-emitting component includes a blue light-emitting unit and a fluorescent adhesive, both the blue light-emitting unit and the red light-emitting unit are disposed in the first bowl, the fluorescent adhesive fills the first bowl and covers the blue light-emitting unit and the red light-emitting unit, and the fluorescent adhesive contains yellow phosphor.

[0007] Furthermore, the lighting system also includes a light panel, on which both white light-emitting modules and golden light-emitting modules are mounted and electrically connected.

[0008] Furthermore, the lighting system also includes a light pole and a luminaire. The luminaire is located at the top of the light pole and includes a lamp housing, a lamp panel, a white light emission module, and a golden light emission module. The lamp panel is located inside the lamp housing, and the environmental detection module is located on the light pole and / or the lamp housing.

[0009] Furthermore, the environmental detection module includes one or more of the following: raindrop sensor, fog sensor, humidity sensor, particulate matter sensor, and ambient light sensor.

[0010] On the other hand, to achieve the above objectives, the technical solution adopted in this application is: a lighting system, including a control module, an environmental detection module, and a light source module. The light source module includes a yellow light emitting component and a red light emitting unit. The yellow light emitting component and the red light emitting unit work together to emit golden yellow light with a color temperature of 1700K-2500K. The control module is electrically connected to the environmental detection module, the yellow light emitting component, and the red light emitting unit. The control module can illuminate only the yellow light emitting component or illuminate both the yellow light emitting component and the red light emitting unit simultaneously according to the detection results of the environmental detection module.

[0011] Compared with existing technologies, the beneficial effects of the lighting system provided in this application are as follows: When the environmental detection module detects good weather conditions, the control module only illuminates the yellow light-emitting component in the light source module. The yellow light emitted by the yellow light-emitting component is close to natural light, has good color rendering, and can accurately reproduce the color of objects, avoiding the risk of increased driver misjudgment due to color distortion of traffic signs and pedestrian clothing. At the same time, it is less likely to cause visual fatigue, thereby improving driving safety. When the environmental detection module detects severe weather conditions, such as rain, fog, or dust, the control module illuminates both the yellow light-emitting component and the red light-emitting unit. The yellow light emitted by the yellow light-emitting component and the red light emitted by the red light-emitting unit can mix to obtain golden light with a color temperature of 1700K-2500K. Compared with pure yellow light, golden light has a lower color temperature and a longer wavelength, and its scattering is weaker in environments such as rain, fog, and dust, which can improve penetration and increase the effective lighting distance, thereby improving driving safety.

[0012] Furthermore, the light source module also includes a first bracket, which has a first bowl; the yellow light emitting component includes a blue light emitting unit and a fluorescent adhesive, the blue light emitting unit and the red light emitting unit are connected in parallel and are both disposed in the first bowl, the fluorescent adhesive fills the first bowl and covers the blue light emitting unit and the red light emitting unit, and the fluorescent adhesive contains yellow phosphor.

[0013] Furthermore, the lighting system also includes a light panel, with multiple light source modules mounted on the light panel and electrically connected to it.

[0014] Furthermore, the lighting system also includes a light pole and a luminaire. The luminaire is located at the top of the light pole and includes a lamp housing, a lamp panel, and a light source module. The lamp panel is located inside the lamp housing, and the environmental detection module is located on the light pole and / or the lamp housing.

[0015] Furthermore, the environmental detection module includes one or more of the following: raindrop sensor, fog sensor, humidity sensor, particulate matter sensor, and ambient light sensor. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is an electrical connection diagram of the lighting system provided in Embodiment 1 of this application;

[0018] Figure 2 This is a schematic diagram of the structure of the lamp board, white light emission module, and golden light emission module provided in Embodiment 1 of this application;

[0019] Figure 3 for Figure 2 A cross-sectional view of the golden light-emitting module shown;

[0020] Figure 4 This is an electrical connection diagram of the lighting system provided in Embodiment 2 of this application;

[0021] Figure 5 This is a schematic diagram of the structure of the lamp board and light source module provided in Embodiment 2 of this application;

[0022] Figure 6 for Figure 5 The cross-sectional view of the light source module shown.

[0023] The following are the labeling elements in the figure:

[0024] 10. Control module;

[0025] 20. Environmental monitoring module;

[0026] 30. White light emission module;

[0027] 40. Golden light-emitting module; 41. Yellow light-emitting component; 411. Blue light-emitting unit; 412. Fluorescent adhesive; 42. Red light-emitting unit; 43. First support;

[0028] 50. Light panel;

[0029] 60. Light source module. Detailed Implementation

[0030] The embodiments of this application are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this application, and should not be construed as limiting this application.

[0031] In the description of this application, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0032] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0033] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0034] Example 1

[0035] CombinationFigure 1 , Figure 2 and Figure 3 As shown, this application embodiment provides a lighting system, including a control module 10, an environmental detection module 20, a white light emission module 30, and a golden light emission module 40. The golden light emission module 40 includes a yellow light emission component 41 and a red light emission unit 42. The yellow light emission component 41 and the red light emission unit 42 cooperate to emit golden light with a color temperature of 1700K-2500K. The control module 10 is electrically connected to the environmental detection module 20, the white light emission module 30, and the golden light emission module 40. The control module 10 can light up the white light emission module 30 and / or the golden light emission module 40 according to the detection result of the environmental detection module 20.

[0036] When the environmental detection module 20 detects good weather conditions, the control module 10 only illuminates the white light emission module 30. The white light emitted by the white light emission module 30 is close to natural light, has good color rendering, and can accurately reproduce the colors of objects, avoiding the risk of driver misjudgment due to color distortion of traffic signs and pedestrians' clothing. At the same time, it is less likely to cause visual fatigue, thereby improving driving safety. When the environmental detection module 20 detects severe weather conditions, such as rain, fog, or dust, the control module 10 illuminates the golden light emission module 40, while turning off the white light emission module 30 or keeping the white light emission module 30 illuminated. When the golden light emission module 40 is working, the yellow light emitted by the yellow light emission component 41 and the red light emitted by the red light emission unit 42 can mix to obtain golden light with a color temperature of 1700K-2500K. Compared with white light, golden light has a lower color temperature and a longer wavelength, and its scattering is weaker in environments such as rain, fog, and dust, which can improve penetration and increase the effective lighting distance, thereby improving driving safety.

[0037] Specifically, the white light emission module 30 and the golden light emission module 40 can each be controlled by a circuit, so that the white light emission module 30 and the golden light emission module 40 can be dimmed separately.

[0038] Specifically, the white light emitted by the white light-emitting module 30 covers the entire visible light spectrum (400nm-700nm), has a color temperature of 5000K-6500K, a color rendering index (CRI) ≥ 95, and a luminous efficacy of 150lm / W-200lm / W. It can simulate the characteristics of natural light, significantly improving the color recognition of objects at night and enhancing driving safety. However, white light contains a large amount of short-wavelength light, such as blue light with wavelengths of 450nm-480nm. Short-wavelength light easily undergoes Mie scattering with suspended particles (such as fog droplets and PM2.5), forming a light curtain effect, which shortens the effective illumination distance and exacerbates glare interference. In contrast, the golden light emitted by the golden light-emitting module 40 has a color temperature of 1700K-2500K and a dominant wavelength of 590nm-595nm. Due to its long wavelength characteristics, its scattering rate can be reduced by 60%-80% compared to white light in adverse weather conditions, increasing penetration and extending the effective illumination distance, thereby improving driving safety. However, the color rendering index (CRI) of golden light is less than 50, causing color distortion in traffic signs and pedestrian clothing. Long-term use of golden light alone increases the risk of driver misjudgment and easily leads to visual fatigue. Furthermore, because golden light overlaps with the phototactic wavelength of insects (500nm-600nm), long-term use of golden light alone can exacerbate ecological damage. The lighting system provided in this application simultaneously uses a white light emission module 30 and a golden light emission module 40, and adaptively adjusts the lighting according to weather conditions. In good weather, the white light emission module 30 is used to maximize its good color rendering. The golden light emission module 40 is used only in adverse weather conditions, or both the white light emission module 30 and the golden light emission module 40 are used simultaneously to maximize the penetrating power of golden light. This improves driving safety and avoids the harm caused by long-term use of golden light alone. In addition, compared to illuminating the golden light module 40 all day long, illuminating the golden light module 40 only under severe weather conditions can meet energy-saving requirements, reduce the wear and tear on the golden light module 40, and extend its service life.

[0039] Furthermore, the golden light emitting module 40 also includes a first support 43, which has a first bowl. The golden light emitting component 41 includes a blue light emitting unit 411 and a fluorescent adhesive 412. Both the blue light emitting unit 411 and the red light emitting unit 42 are disposed in the first bowl. The fluorescent adhesive 412 fills the first bowl and covers both the blue light emitting unit 411 and the red light emitting unit 42. The fluorescent adhesive 412 contains yellow phosphor. During operation, the blue light emitted by the blue light emitting unit 411 can excite the yellow phosphor in the fluorescent adhesive 412 to generate yellow light. The yellow light then mixes with the red light emitted by the red light emitting unit 42 to obtain golden light with a color temperature of 1700K-2500K. By setting the first bowl on the first support 43, placing the blue light emitting unit 411 and the red light emitting unit 42 simultaneously in the bowl, and filling the bowl with fluorescent adhesive 412 to cover the blue light emitting unit 411 and the red light emitting unit 42, the uniformity of light mixing can be improved.

[0040] The manufacturing method of the golden light emitting module 40 is as follows: A first bracket 43, a blue light emitting unit 411, and a red light emitting unit 42 are provided. The blue light emitting unit 411 and the red light emitting unit 42 are placed in the first cup of the first bracket 43, and the blue light emitting unit 411 and the red light emitting unit 42 are connected in series or in parallel. Fluorescent adhesive 412 is prepared by thoroughly mixing transparent adhesive and fluorescent powder to obtain fluorescent adhesive 412. The fluorescent adhesive 412 is filled into the first cup of the first bracket 43, so that the fluorescent adhesive 412 covers the blue light emitting unit 411 and the red light emitting unit 42. The module is baked and cured to obtain the golden light emitting module 40.

[0041] The material of the first bracket 43 is not limited. For example, the first bracket 43 can be a PCT (Polycarbonate) bracket, an EMC (Epoxy Molding Compound) bracket, or an aluminum nitride ceramic bracket, which has good heat dissipation performance and is suitable for high-power street lights.

[0042] The number of blue light emitting units 411 and red light emitting units 42 is not limited; there can be one or more. When there are multiple blue light emitting units 411 and multiple red light emitting units 42, the multiple blue light emitting units 411 and the multiple red light emitting units 42 can be arranged alternately in strips or rings to improve the uniformity of light mixing.

[0043] Furthermore, both the blue light-emitting unit 411 and the red light-emitting unit 42 are LED light-emitting chips, which have the advantages of fast start-up, low cost and energy saving and environmental protection.

[0044] In other embodiments, the yellow light-emitting component 41 can also be replaced by a yellow LED light-emitting chip instead of the combination of blue light-emitting unit 411 and phosphor 412. The structure is simpler. However, the cost of yellow LED light-emitting chips is generally tens to hundreds of times that of blue LED light-emitting chips. Compared with the "chip-type" scheme that uses a combination of yellow and red LED light-emitting chips to obtain golden light, the "fluorescent-type" scheme that uses a combination of blue light-emitting unit 411, red light-emitting unit 42 and phosphor 412 to obtain golden light can reduce production costs. At the same time, it can improve the uniformity of mixing yellow and red light. In addition, it can also improve the color rendering index Ra and luminous efficacy. A higher color rendering index Ra means that the color of the object can be reproduced more realistically, providing a clearer and more natural visual experience. Higher luminous efficacy means that less power can be consumed under the same lighting requirements, thereby reducing operating costs and reducing environmental impact.

[0045] Furthermore, the blue light emitting unit 411 emits at a wavelength of 450nm-455nm, and the red light emitting unit 42 emits at a wavelength of 620nm-625nm. The peak intensity ratio of the relative spectra of the blue light emitting unit 411 and the red light emitting unit 42 during emission is 1 to 3. The peak emission wavelength of the yellow phosphor is 560nm-570nm. Excessive excitation intensity of the blue light emitting unit 411 can lead to an increased color temperature, a whiter light, and reduced light penetration. Although increasing the amount of phosphor 412 can suppress blue light, it will reduce red light flux, which is detrimental to illumination. Conversely, excessive excitation intensity of the red light emitting unit 42 can lead to a reddish light, a lower color rendering index, and a lower color temperature. By controlling the peak intensity ratio of the blue light emitting unit 411 and the red light emitting unit 42 in the relative spectrum during emission to be 1 to 3, and selecting the emission wavelength of the blue light emitting unit 411 to be 450nm-455nm, the emission wavelength of the red light emitting unit 42 to be 620-625nm, and the emission peak wavelength of the yellow phosphor to be 560nm-570nm, the blue light component can be effectively reduced, and a golden yellow light with a color temperature of 1700K-3000K can be obtained.

[0046] Furthermore, fluorescent adhesive 412 is made by mixing transparent adhesive and fluorescent powder. The fluorescent powder includes yellow fluorescent powder, and the proportion of fluorescent powder in fluorescent adhesive 412 is 45%-80%. The proportion of transparent adhesive in fluorescent adhesive 412 is 20%-55%, and the transparent adhesive can be silicone. By adjusting the proportion of fluorescent powder in fluorescent adhesive 412, the color temperature of the light can be adjusted. The fluorescent powder can be a single type of yellow fluorescent powder, or a mixture of multiple colors of fluorescent powder.

[0047] Furthermore, the fluorescent adhesive 412 also contains red phosphor. Adding red phosphor to the fluorescent adhesive 412 enhances red light and lowers the color temperature. Adjusting the proportion of red phosphor in the fluorescent adhesive 412 allows for the regulation of the light's color temperature. The peak emission wavelength of the red phosphor is 620nm-630nm, and the mass ratio of yellow phosphor to red phosphor is ≥10. With the blue light-emitting unit 411 having an emission wavelength of 450nm-455nm and the red light-emitting unit 42 having an emission wavelength of 620-625nm, and the peak intensity ratio of the relative spectra of the blue and red light-emitting units 411 and 42 controlled to be 1 to 3, and the yellow phosphor having an emission peak wavelength of 560-570nm, and the red phosphor having an emission peak wavelength of 620nm-630nm, and the mass ratio of yellow to red phosphor being controlled to be ≥10, the blue light component and color temperature can be further reduced. The resulting golden light has a blue light component accounting for ≤0.5% of the total spectrum, and a color temperature of 1700K-2400K. The emission peak wavelength of the red phosphor is close to or equal to the emission wavelength of the red light-emitting unit 42, effectively maintaining the spectral structure and reducing the color temperature.

[0048] Furthermore, the fluorescent adhesive 412 may include a bottom layer and a top layer. The bottom layer covers blue light-emitting units 411 and red light-emitting units 42, and contains yellow phosphor. The top layer covers the side of the bottom layer facing away from the blue light-emitting units 411 and red light-emitting units 42, and contains red phosphor. During operation, the blue light emitted by the blue light-emitting unit 411 first enters the bottom layer, exciting the yellow phosphor within the bottom layer to produce yellow light. The yellow light passes through the top layer. The red light emitted by the red light-emitting unit 42 passes through both the bottom and top layers, mixing with the yellow light to produce golden yellow light. This layered coating process improves the excitation efficiency of the phosphor, enhances spectral continuity, and increases the color rendering index Ra. Specifically, the thickness of the bottom layer is greater than that of the top layer, which facilitates increasing the proportion of yellow phosphor in the phosphor, allowing the blue light emitted by the blue light-emitting unit 411 to fully excite the yellow phosphor to produce yellow light, thereby effectively reducing the blue light component.

[0049] Furthermore, the control module 10 includes a PWM dimming module, which is used to adjust the brightness of the white light-emitting module 30 and the golden light-emitting module 40. The frequency is 1kHz and the transition time is 5 seconds to avoid causing eye discomfort. During the light switching period, the duty cycle of the white light linearly decreases from 100% to 0%, while the golden light increases from 0% to 100%. The use of PWM dimming has advantages such as good brightness stability, excellent color consistency, wide dimming range and good linearity, energy saving and environmental protection.

[0050] Furthermore, the white light emitting module 30 includes a second bracket and a white light emitting unit disposed on the second bracket. The white light emitting unit can be an LED chip, which has advantages such as fast start-up, high color rendering index, low cost, and energy saving and environmental protection. Specifically, the second bracket may have a second cup, in which the white light emitting unit is disposed, and the second cup is filled with encapsulating adhesive, which covers the white light emitting unit. The encapsulating adhesive can be transparent adhesive. The material of the second bracket is not limited. For example, the second bracket can be a PCT (Polycarbonate) bracket, an EMC (Epoxy Molding Compound) bracket, or an aluminum nitride ceramic bracket, which has good heat dissipation performance and is suitable for high-power streetlights.

[0051] Furthermore, the environmental detection module 20 includes one or more of the following: a raindrop sensor, a fog sensor, a humidity sensor, a particulate matter sensor, and an ambient light sensor. The raindrop sensor, which can be capacitive or optical, is used to detect rainfall. The fog sensor detects the fog level of objects; fog level reflects an object's ability to scatter light. The stronger the object's ability to scatter light, the greater the fog level. The fog sensor can be a laser scattering type, including a transmitter and a receiver. The transmitter emits a 650nm laser, and the receiver receives the scattered light to detect the scattering intensity. The humidity sensor detects the humidity level of the environment. The particulate matter sensor detects the concentration of particulate matter in the environment, such as PM2.5 concentration. The ambient light sensor detects light intensity. The control module 10 receives data from the environmental detection module 20 and determines whether to trigger a light source switch using a preset algorithm. The light source switch logic is not limited. For example, if the white light emission module 30 is always on, and the rain sensor detects continuous rainfall for more than 5 minutes and the humidity sensor detects humidity >85%, the control module 10 will turn on the golden light emission module 40 and simultaneously turn off the white light emission module 30, or it can maintain the white light emission module 30 on to form a mixed spectrum and improve visual comfort. Alternatively, if the white light emission module 30 is always on, and the particulate matter sensor detects PM2.5 concentration >75 μg / m³, the control module 10 will turn on the golden light emission module 40 and simultaneously turn off the white light emission module 30. 3 Furthermore, when the ambient light sensor detects a light intensity attenuation >30%, the control module 10 illuminates the golden light-emitting module 40 while simultaneously turning off the white light-emitting module 30 or keeping the white light-emitting module 30 illuminated. Alternatively, if the white light-emitting module 30 is constantly illuminated, it will display the rainfall (0-10 mm / h) detected by the raindrop sensor and the PM2.5 concentration (0-500 μg / m³) detected by the particulate matter sensor. 3 The humidity (0-100%) detected by the humidity sensor is assigned weights of 0.4, 0.3, and 0.3 respectively. Visibility index is calculated by dynamically correcting errors using Kalman filtering.

[0052]

[0053] When V index When the value is ≥0.6, it is determined to be severe weather. The control module 10 will turn on the golden light emitting module 40 and turn off the white light emitting module 30 or keep the white light emitting module 30 lit.

[0054] Furthermore, the lighting system also includes a light panel 50, on which white light-emitting modules 30 and golden light-emitting modules 40 are mounted and electrically connected. The number of white light-emitting modules 30 and golden light-emitting modules 40 is not limited; there can be one or more.

[0055] Furthermore, the lighting system also includes a diffuser that covers the light panel 50, which optimizes the light spot and prevents the separation of red and yellow light color zones, thereby improving the uniformity of light mixing.

[0056] Furthermore, the lighting system also includes a light pole and luminaires. The luminaires are mounted at the top of the light pole and include a lamp housing, a lamp panel 50, a white light-emitting module 30, and a golden light-emitting module 40. The lamp panel 50 is housed within the lamp housing, and an environmental detection module 20 is mounted on the light pole and / or the lamp housing. The lamp housing may include a lampshade that covers the white light-emitting module 30 and the golden light-emitting module 40, serving to protect them and also to reflect and focus light.

[0057] Example 2

[0058] Combination Figure 4 , Figure 5 and Figure 6 As shown, this application embodiment provides another lighting system, including a control module 10, an environmental detection module 20, and a light source module 60. The light source module 60 includes a yellow light emitting component 41 and a red light emitting unit 42. The yellow light emitting component 41 and the red light emitting unit 42 work together to emit golden light with a color temperature of 1700K-3000K. The control module 10 is electrically connected to the environmental detection module 20, the yellow light emitting component 41, and the red light emitting unit 42. The control module 10 can illuminate only the yellow light emitting component 41 or illuminate both the yellow light emitting component 41 and the red light emitting unit 42 simultaneously, based on the detection results of the environmental detection module 20.

[0059] When the environmental detection module 20 detects good weather conditions, the control module 10 only illuminates the yellow light-emitting component 41 in the light source module 60. The yellow light emitted by the yellow light-emitting component 41 is close to natural light, has good color rendering, and can accurately reproduce the colors of objects, avoiding the risk of driver misjudgment due to color distortion of traffic signs and pedestrian clothing. It also reduces visual fatigue, thereby improving driving safety. When the environmental detection module 20 detects severe weather conditions, such as rain, fog, or dust, the control module 10 simultaneously illuminates the yellow light-emitting component 41 and the red light-emitting unit 42. The yellow light emitted by the yellow light-emitting component 41 and the red light emitted by the red light-emitting unit 42 mix to produce golden light with a color temperature of 1700K-2500K. Compared to pure yellow light, golden light has a lower color temperature and a longer wavelength, resulting in weaker scattering in rain, fog, and dust environments. This improves penetration and increases the effective illumination distance, thereby enhancing driving safety.

[0060] Specifically, the yellow light emitting component 41 and the red light emitting unit 42 can each be controlled by a circuit so that the yellow light emitting component 41 and the red light emitting unit 42 can be dimmed separately.

[0061] Specifically, the yellow light emitted by the yellow light-emitting component 41 has a color temperature of 2500K-3500K, a spectrum close to natural light, and a color rendering index Ra>70. This accurately reproduces object colors, avoiding the increased risk of driver misjudgment due to color distortion of traffic signs and pedestrian clothing, while also reducing visual fatigue and improving driving safety. Furthermore, the yellow light contains less red light and its spectrum is concentrated in the middle of the visible light spectrum, minimizing long-distance scattering and reducing light pollution to the surrounding environment. The golden light emitted by the golden light-emitting module 40 has a color temperature of 1700K-2500K and a dominant wavelength of 590nm-595nm. Due to its long wavelength, it has a lower scattering rate than pure yellow light in adverse weather conditions, stronger penetration, and an effective illumination distance that is 50%-80% greater than pure yellow light, thus improving driving safety. However, the color rendering index of golden yellow light is lower than that of pure yellow light, causing color distortion in traffic signs and pedestrian clothing. Long-term use of golden yellow light alone increases the risk of driver misjudgment and easily leads to visual fatigue. Furthermore, because golden yellow light overlaps with the phototactic wavelength of insects (500nm-600nm), long-term use of golden yellow light alone can exacerbate ecological damage. The lighting system provided in this application embodiment simultaneously sets up a yellow light-emitting component 41 and a red light-emitting unit 42, and adaptively adjusts the lighting according to weather conditions. In good weather conditions, the yellow light-emitting component 41 is used for illumination to take advantage of the good color rendering of yellow light. Only in bad weather conditions are the yellow light-emitting component 41 and the red light-emitting unit 42 simultaneously illuminated, allowing the yellow and red light to mix and produce golden yellow light with a color temperature of 1700K-3000K, thus taking advantage of the strong penetrating power of golden yellow light. This improves driving safety and avoids the harm caused by long-term use of golden yellow light alone. In addition, compared to keeping the red light-emitting unit 42 lit all day, lighting the red light-emitting unit 42 only in severe weather conditions can meet energy-saving requirements, reduce the wear and tear on the red light-emitting unit 42, and extend its service life.

[0062] Furthermore, the light source module 60 also includes a first support 43, which has a first bowl; the yellow light emitting component 41 includes a blue light emitting unit 411 and a fluorescent adhesive 412. The blue light emitting unit 411 and the red light emitting unit 42 are connected in parallel and are both disposed in the first bowl. The fluorescent adhesive 412 fills the first bowl and covers the blue light emitting unit 411 and the red light emitting unit 42. The fluorescent adhesive 412 contains yellow phosphor. When the control module 10 only lights up the blue light emitting unit 411, the blue light emitted by the blue light emitting unit 411 can excite the yellow phosphor in the fluorescent adhesive 412 to produce yellow light. When the control module 10 simultaneously lights up the blue light emitting unit 411 and the red light emitting unit 42, the blue light can excite the yellow phosphor in the fluorescent adhesive 412 to produce yellow light, which can mix with the red light emitted by the red light emitting unit 42 to obtain golden yellow light with a color temperature of 1700K-2500K. By placing a first bowl on the first support 43, placing the blue light emitting unit 411 and the red light emitting unit 42 into the bowl simultaneously, and filling the bowl with fluorescent glue 412 to cover the blue light emitting unit 411 and the red light emitting unit 42, the uniformity of light mixing can be improved.

[0063] The manufacturing method of the light source module 60 is as follows: a first bracket 43, a blue light emitting unit 411, and a red light emitting unit 42 are provided. The blue light emitting unit 411 and the red light emitting unit 42 are placed in the first cup of the first bracket 43, and the blue light emitting unit 411 and the red light emitting unit 42 are connected in parallel. Fluorescent adhesive 412 is provided. Transparent adhesive and fluorescent powder are thoroughly mixed evenly to obtain fluorescent adhesive 412. The fluorescent adhesive 412 is filled into the first cup of the first bracket 43, so that the fluorescent adhesive 412 covers the blue light emitting unit 411 and the red light emitting unit 42. The light source module 60 is obtained by baking and curing.

[0064] The material of the first bracket 43 is not limited. For example, the first bracket 43 can be a PCT (Polycarbonate) bracket, an EMC (Epoxy Molding Compound) bracket, or an aluminum nitride ceramic bracket, which has good heat dissipation performance and is suitable for high-power street lights.

[0065] The number of blue light emitting units 411 and red light emitting units 42 is not limited; there can be one or more. When there are multiple blue light emitting units 411 and multiple red light emitting units 42, the multiple blue light emitting units 411 and the multiple red light emitting units 42 can be arranged alternately in strips or rings to improve the uniformity of light mixing.

[0066] Furthermore, both the blue light-emitting unit 411 and the red light-emitting unit 42 are LED light-emitting chips, which have the advantages of fast start-up, low cost and energy saving and environmental protection.

[0067] In other embodiments, the yellow light-emitting component 41 can also be replaced by a yellow LED light-emitting chip instead of the combination of blue light-emitting unit 411 and phosphor 412. The structure is simpler. However, the cost of yellow LED light-emitting chips is generally tens to hundreds of times that of blue LED light-emitting chips. Compared with the "chip-type" scheme that uses a combination of yellow and red LED light-emitting chips to obtain golden light, the "fluorescent-type" scheme that uses a combination of blue light-emitting unit 411, red light-emitting unit 42 and phosphor 412 to obtain golden light can reduce production costs. At the same time, it can improve the uniformity of mixing yellow and red light. In addition, it can also improve the color rendering index Ra and luminous efficacy. A higher color rendering index Ra means that the color of the object can be reproduced more realistically, providing a clearer and more natural visual experience. Higher luminous efficacy means that less power can be consumed under the same lighting requirements, thereby reducing operating costs and reducing environmental impact.

[0068] Furthermore, the blue light emitting unit 411 emits at a wavelength of 450nm-455nm, and the red light emitting unit 42 emits at a wavelength of 620nm-625nm. The peak intensity ratio of the relative spectra of the blue light emitting unit 411 and the red light emitting unit 42 during emission is 1 to 3. The peak emission wavelength of the yellow phosphor is 560nm-570nm. Excessive excitation intensity of the blue light emitting unit 411 can lead to an increased color temperature, a whiter light, and reduced light penetration. Although increasing the amount of phosphor 412 can suppress blue light, it will reduce red light flux, which is detrimental to illumination. Conversely, excessive excitation intensity of the red light emitting unit 42 can lead to a reddish light, a lower color rendering index, and a lower color temperature. By controlling the peak intensity ratio of the blue light emitting unit 411 and the red light emitting unit 42 in the relative spectrum during emission to be 1 to 3, and selecting the emission wavelength of the blue light emitting unit 411 to be 450nm-455nm, the emission wavelength of the red light emitting unit 42 to be 620-625nm, and the emission peak wavelength of the yellow phosphor to be 560nm-570nm, the blue light component can be effectively reduced, and a golden yellow light with a color temperature of 1700K-2500K can be obtained.

[0069] Furthermore, fluorescent adhesive 412 is made by mixing transparent adhesive and fluorescent powder. The fluorescent powder includes yellow fluorescent powder, and the proportion of fluorescent powder in fluorescent adhesive 412 is 45%-80%. The proportion of transparent adhesive in fluorescent adhesive 412 is 20%-55%, and the transparent adhesive can be silicone. By adjusting the proportion of fluorescent powder in fluorescent adhesive 412, the color temperature of the light can be adjusted. The fluorescent powder can be a single type of yellow fluorescent powder, or a mixture of multiple colors of fluorescent powder.

[0070] Furthermore, the fluorescent adhesive 412 also contains red phosphor. Adding red phosphor to the fluorescent adhesive 412 enhances red light and lowers the color temperature. Adjusting the proportion of red phosphor in the fluorescent adhesive 412 allows for the regulation of the light's color temperature. The peak emission wavelength of the red phosphor is 620nm-630nm, and the mass ratio of yellow phosphor to red phosphor is ≥10. With the blue light-emitting unit 411 having an emission wavelength of 450nm-455nm and the red light-emitting unit 42 having an emission wavelength of 620-625nm, and the peak intensity ratio of the relative spectra of the blue and red light-emitting units 411 and 42 controlled to be 1 to 3, and the yellow phosphor having an emission peak wavelength of 560-570nm, and the red phosphor having an emission peak wavelength of 620nm-630nm, and the mass ratio of yellow to red phosphor being controlled to be ≥10, the blue light component and color temperature can be further reduced. The resulting golden light has a blue light component accounting for ≤0.5% of the total spectrum, and a color temperature of 1700K-2400K. The emission peak wavelength of the red phosphor is close to or equal to the emission wavelength of the red light-emitting unit 42, effectively maintaining the spectral structure and reducing the color temperature.

[0071] Furthermore, the fluorescent adhesive 412 may include a bottom layer and a top layer. The bottom layer covers blue light-emitting units 411 and red light-emitting units 42, and contains yellow phosphor. The top layer covers the side of the bottom layer facing away from the blue light-emitting units 411 and red light-emitting units 42, and contains red phosphor. During operation, the blue light emitted by the blue light-emitting unit 411 first enters the bottom layer, exciting the yellow phosphor within the bottom layer to produce yellow light. The yellow light passes through the top layer. The red light emitted by the red light-emitting unit 42 passes through both the bottom and top layers, mixing with the yellow light to produce golden yellow light. This layered coating process improves the excitation efficiency of the phosphor, enhances spectral continuity, and increases the color rendering index Ra. Specifically, the thickness of the bottom layer is greater than that of the top layer, which facilitates increasing the proportion of yellow phosphor in the phosphor, allowing the blue light emitted by the blue light-emitting unit 411 to fully excite the yellow phosphor to produce yellow light, thereby effectively reducing the blue light component.

[0072] Furthermore, the control module 10 includes a PWM dimming module with a frequency of 1kHz and a transition time of 5 seconds to avoid eye discomfort. The PWM dimming module is used to adjust the brightness of the blue light-emitting unit 411 and the red light-emitting unit 42. PWM dimming has advantages such as good brightness stability, excellent color consistency, a wide dimming range and good linearity, and energy saving and environmental protection.

[0073] Furthermore, the environmental detection module 20 includes one or more of the following: a raindrop sensor, a fog sensor, a humidity sensor, a particulate matter sensor, and an ambient light sensor. The raindrop sensor, which can be capacitive or optical, is used to detect rainfall. The fog sensor detects the fog level of objects; fog level reflects an object's ability to scatter light. The stronger the object's ability to scatter light, the greater the fog level. The fog sensor can be a laser scattering type, including a transmitter and a receiver. The transmitter emits a 650nm laser, and the receiver receives the scattered light to detect the scattering intensity. The humidity sensor detects the humidity level of the environment. The particulate matter sensor detects the concentration of particulate matter in the environment, such as PM2.5 concentration. The ambient light sensor detects light intensity. The control module 10 receives data from the environmental detection module 20 and determines whether to trigger a light source switch using a preset algorithm. The light source switch logic is not limited. For example, if the yellow light-emitting component 41 is always on, and the rain sensor detects continuous rainfall for more than 5 minutes and the humidity sensor detects humidity > 85%, the control module 10 will illuminate the red light-emitting unit 42. Similarly, if the yellow light-emitting component 41 is always on, and the particulate matter sensor detects PM2.5 concentration > 75 μg / m³, the control module 10 will illuminate the red light-emitting unit 42. 3 Furthermore, when the ambient light sensor detects a light intensity attenuation >30%, the control module 10 illuminates the red light-emitting unit 42; conversely, when the yellow light-emitting component 41 is constantly lit, it illuminates the rainfall (0-10 mm / h) detected by the raindrop sensor and the PM2.5 concentration (0-500 μg / m³) detected by the particulate matter sensor. 3 The humidity (0-100%) detected by the humidity sensor is assigned weights of 0.4, 0.3, and 0.3 respectively. Visibility index is calculated by dynamically correcting errors using Kalman filtering.

[0074]

[0075] When V index When the value is ≥0.6, it is determined to be severe weather, and the control module 10 illuminates the red light-emitting unit 42.

[0076] Furthermore, the lighting system also includes a lamp panel 50 and multiple light source modules 60, all of which are mounted on the lamp panel 50 and electrically connected to the lamp panel 50.

[0077] Furthermore, the lighting system also includes a diffuser that covers the light panel 50, which optimizes the light spot and prevents the separation of red and yellow light color zones, thereby improving the uniformity of light mixing.

[0078] Furthermore, the lighting system also includes a light pole and a luminaire. The luminaire is located at the top of the light pole and includes a lamp housing, a lamp panel 50, and a light source module 60. The lamp panel 50 is located inside the lamp housing, and the environmental detection module 20 is located on the light pole and / or the lamp housing. The lamp housing may include a lamp shade, which covers the light source module 60, serving to protect the light source module 60 and to reflect and focus light.

[0079] It should be noted that the above are merely preferred embodiments of this application and are not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the scope of protection of this application.

Claims

1. A lighting system, characterized in that, The system includes a control module, an environmental detection module, a white light emission module, and a golden light emission module. The golden light emission module includes a yellow light emission component and a red light emission unit. The yellow light emission component and the red light emission unit work together to emit golden light with a color temperature of 1700K-2500K. The control module is electrically connected to the environmental detection module, the white light emission module, and the golden light emission module. The control module can illuminate the white light emission module and / or the golden light emission module according to the detection results of the environmental detection module.

2. The lighting system according to claim 1, characterized in that: The golden light emitting module further includes a first bracket, which has a first bowl; the golden light emitting component includes a blue light emitting unit and a fluorescent adhesive, both of which are disposed in the first bowl, and the fluorescent adhesive fills the first bowl and covers the blue light emitting unit and the red light emitting unit, and the fluorescent adhesive contains yellow phosphor.

3. The lighting system according to any one of claims 1-2, characterized in that: The lighting system also includes a lamp panel, on which both the white light-emitting module and the golden light-emitting module are mounted and electrically connected.

4. The lighting system according to claim 3, characterized in that: The lighting system also includes a lamp post and a lamp fixture. The lamp fixture is located at the top of the lamp post and includes a lamp housing, a lamp panel, a white light emission module, and a golden light emission module. The lamp panel is located inside the lamp housing, and the environmental detection module is located on the lamp post and / or the lamp housing.

5. The lighting system according to any one of claims 1-2, characterized in that: The environmental detection module includes one or more of the following: raindrop sensor, fog sensor, humidity sensor, particulate matter sensor, and ambient light sensor.

6. A lighting system, characterized in that, The system includes a control module, an environmental detection module, and a light source module. The light source module includes a yellow light emitting component and a red light emitting unit. The yellow light emitting component and the red light emitting unit work together to emit golden yellow light with a color temperature of 1700K-2500K. The control module is electrically connected to the environmental detection module, the yellow light emitting component, and the red light emitting unit. The control module can illuminate only the yellow light emitting component or illuminate both the yellow light emitting component and the red light emitting unit simultaneously based on the detection results of the environmental detection module.

7. The lighting system according to claim 6, characterized in that: The light source module further includes a first bracket, which has a first bowl; the yellow light emitting component includes a blue light emitting unit and a fluorescent adhesive, the blue light emitting unit and the red light emitting unit are connected in parallel and are both disposed in the first bowl, the fluorescent adhesive fills the first bowl and covers the blue light emitting unit and the red light emitting unit, and the fluorescent adhesive contains yellow phosphor.

8. The lighting system according to any one of claims 6-7, characterized in that: The lighting system also includes a light panel, and there are multiple light source modules, all of which are mounted on the light panel and electrically connected to the light panel.

9. The lighting system according to claim 8, characterized in that: The lighting system also includes a lamp post and a lamp fixture. The lamp fixture is located at the top of the lamp post and includes a lamp housing, a lamp panel, and a light source module. The lamp panel is located inside the lamp housing, and the environmental detection module is located on the lamp post and / or the lamp housing.

10. The lighting system according to any one of claims 6-7, characterized in that: The environmental detection module includes one or more of the following: raindrop sensor, fog sensor, humidity sensor, particulate matter sensor, and ambient light sensor.

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