Landscape lighting capable of promoting plant growth and method of using the same

Abstract

The present application relates to a landscape lighting lamp that can promote plant growth, including a first LED chip for lighting and a second LED chip for promoting plant growth, a light sensor separated from the light source for detecting the intensity of external light, and a controller for adjusting the power of the first LED chip and the second LED chip. The position of the landscape lighting lamp is determined by detecting the change in light intensity before and after the light source is turned on. The power of the first LED chip and the second LED chip is intelligently regulated based on the position of the landscape lighting lamp in combination with an algorithm, so that when the landscape lighting lamp is in an open position, the first LED chip is mainly used for lighting; when the landscape lighting lamp is in a position shaded by plants, the second LED chip is mainly used to promote the growth of surrounding plants.

Description

Technical Field

[0001] The present application relates to the field of lighting technology, and in particular to a landscape lighting lamp capable of promoting plant growth and a method of using the same. Background Art

[0002] With the development of lighting technology, the fourth-generation lighting product LED has emerged. It has the advantages of high photoelectric conversion efficiency, low heat generation, and fixed wavelength, so it is widely used in various scenarios.

[0003] In the application of plant landscape lights, LED lights can not only illuminate, but also be used to supplement the surrounding plants to promote photosynthesis and growth of plants. The usual LED light source uses a blue LED chip plus yellow phosphor to produce a white light visual effect.

[0004] However, the white light produced by this LED light source is very lacking in the 610-730nm wavelength light required for plants to carry out photosynthesis, which is not conducive to plants absorbing carbon dioxide for photosynthesis. Summary of the invention

[0005] Based on this, it is necessary to provide a landscape lamp that can promote plant growth in order to address the problem that existing LED landscape lamps lack light of wavelengths corresponding to plant growth.

[0006] A landscape lighting lamp capable of promoting plant growth comprises a light source, a light sensor and a controller. The light source comprises a first LED chip and a second LED chip. The first LED chip and the second LED chip generate light with different spectra. The first LED chip is used for lighting, and the second LED chip is used for promoting plant growth. The light sensor is separated from the light source and is used to detect the intensity of external light. The controller is communicatively connected to the first LED chip, the second LED chip and the light sensor. The controller adjusts the power of the first LED chip and the second LED chip in response to the intensity of external light.

[0007] By adopting the above technical solution, the light sensor is separated from the light source to prevent the light source from directly irradiating the light sensor. The controller adjusts the power of the first LED chip and the second LED chip based on the external light intensity detected by the light sensor. When the controller determines that the light source is in an open position, the power of the first LED chip is adjusted to make it the main light source for lighting; when the controller determines that the light source is in a shielded position, the power of the second LED chip is adjusted to make it the main light source for promoting the growth of surrounding plants.

[0008] In one embodiment, the controller includes a time control module, and the time control module controls the operation of the second LED chip using a pulse signal.

[0009] By adopting the above technical solution, the second LED chip is controlled by a pulse signal and works intermittently to generate light, which can better promote plant growth on the basis of saving energy.

[0010] In one embodiment, the wavelength of the light generated by the second LED chip is 610nm to 730nm.

[0011] By adopting the above technical solution, the second LED chip can generate light of a specific wavelength, which is necessary for plants to carry out photosynthesis, and can make up for the shortcoming that the first LED chip generates less light in this band, thereby enabling plants to improve their photosynthesis efficiency under the light of this band generated by the second LED chip.

[0012] The present application also provides a method for using a landscape lighting lamp that can promote plant growth, including collecting ambient light intensity data; starting the first LED chip and collecting first light intensity data after the first LED chip is started; configuring the power of the second LED chip based on the ambient light intensity data and the first light intensity data; and adjusting the power of the first LED chip and the second LED chip.

[0013] By adopting the above technical solution, by comparing the ambient light intensity data with the first light intensity data after the first LED chip is started, it can be determined whether the light source is in an open position. If the light source is in an open position, the power of the first LED chip is adjusted to make it the main light source for lighting; if the light source is not in an open position, it means that there are many plants near the light source, and the power of the second LED chip is adjusted so that the second LED chip is used as the main light source to generate special light to promote the growth of surrounding plants.

[0014] In one embodiment, the step of configuring the power of the second LED chip based on the ambient light intensity data and the first light intensity data specifically includes: calculating the difference between the ambient light intensity data and the first light intensity data; and configuring the power of the second LED chip with reference to the power of the first LED chip based on the ratio of the difference to the ambient light intensity data.

[0015] By adopting the above technical solution, when the first LED chip is turned on, if the first light intensity data is significantly higher than the ambient light intensity data, it means that the previous ambient light intensity is low, and the light source is generated closer to the surrounding plants, and can be reflected to the light sensor with a larger amplitude. At this time, it is suitable to start the second LED chip. On the contrary, it means that the source is generated farther away from the surrounding plants, and turning on the second LED chip cannot effectively illuminate the nearby plants, and the first LED chip should be used as the main lighting.

[0016] In one embodiment, the power of the second LED chip is based on the formula Calculate, where W1 is the power of the first LED chip, W2 is the power of the second LED chip, k is the relative luminous efficiency, ε b is the ambient light intensity, and ε1 is the first light intensity.

[0017] By adopting the above technical solution, the power of the second LED chip can be calculated by a formula, so as to balance the power between the first LED chip and the second LED chip with quantified data, thereby improving the lighting efficiency of the landscape lamp and promoting the growth efficiency of plants.

[0018] In one embodiment, the step of adjusting the power of the first LED chip and the second LED chip is specifically: setting the total luminous intensity of the first LED chip and the second LED chip; based on the total luminous intensity data, proportionally adjusting the power of the first LED chip and the second LED chip so that the collected light intensity data is equal to the total luminous intensity.

[0019] By adopting the above technical solution, after setting the total luminous intensity, if the power of the second LED chip is larger, the power of the first LED chip can be reduced accordingly, so that the total luminous intensity remains unchanged, and the first LED chip does not keep working at high power, causing energy waste.

[0020] In one of the embodiments, after the step of collecting ambient light intensity data, the method further includes: setting a condition for starting the first LED chip; and determining whether the first LED chip is started.

[0021] By adopting the above technical solution, the start-up condition of the first LED chip is a set ambient light intensity threshold. When the ambient light intensity reaches the threshold, the first LED chip is started to illuminate the surrounding environment.

[0022] In summary, the landscape lighting lamp capable of promoting plant growth of the present application has at least one of the following beneficial technical effects:

[0023] 1. The controller adjusts the power of the first LED chip and the second LED chip based on the external light intensity detected by the light sensor. When the controller determines that the light source is in an open position, the controller adjusts the power of the first LED chip to make it the main light source for lighting; when the controller determines that the light source is in a shielded position, the controller adjusts the power of the second LED chip to make it the main light source for promoting the growth of surrounding plants.

[0024] 2. The formula can be used to calculate the power of the second LED chip, so as to quantify the data to balance the power between the first LED chip and the second LED chip, thereby improving the lighting efficiency of the landscape lamp and promoting the growth efficiency of plants.

[0025] 3. After setting the total luminous intensity, if the power of the second LED chip is larger, the power of the first LED chip can be reduced accordingly so that the total luminous intensity remains unchanged, so that the first LED chip does not continue to work at high power, causing energy waste. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 A flow chart of a landscape lighting lamp capable of promoting plant growth and a method of using the same in an embodiment of the present application. DETAILED DESCRIPTION

[0027] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present application, so the present application is not limited by the specific embodiments disclosed below.

[0028] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0029] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of this application, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0030] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0031] In the present application, unless otherwise clearly specified and limited, a first feature being “above” or “below” a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being “above”, “above”, and “above” a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being “below”, “below”, and “below” a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0032] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only implementation method.

[0033] A landscape lighting lamp capable of promoting plant growth provided by one embodiment of the present application includes a light source, a light sensor, and a controller. The light source includes a first LED chip for providing lighting and a second LED chip mainly for promoting plant growth. The light sensor is used to detect the intensity of external light. The controller is connected to the first LED chip, the second LED chip, and the light sensor respectively, and controls the power of the first LED chip and the second LED chip based on the external light intensity signal.

[0034] Specifically in this embodiment, the first LED chip is a conventional blue LED chip coated with yellow phosphor. The blue light emitted by the LED chip excites the yellow fluorescent components to form white light close to the effect of natural light, illuminating the surrounding area to achieve the lighting effect of the landscape lamp.

[0035] The second LED chip is coated with red phosphor, so that the second LED chip generates red wavelength light to illuminate surrounding plants under the excitation of the red phosphor, so as to make up for the shortcoming that the first LED chip generates less light in this wavelength band, so that the plants can improve the photosynthesis efficiency under the light in this wavelength band generated by the second LED chip.

[0036] Specifically, the wavelength of the light generated by the second LED chip is 610nm to 730nm. The light in this band is necessary for plants to perform photosynthesis, and can make up for the shortcoming that the first LED chip generates less light in this band, so that plants can improve photosynthesis efficiency under the light in this band generated by the second LED chip.

[0037] In some other embodiments, the second LED chip is controlled by the pulse signal to work. The second LED chip works during the high level period of the pulse to generate red light to promote plant growth; it is turned off during the low level period of the pulse cycle to save energy. The pulse signal control operation enables plants to grow better, and compared with continuous operation, it can save energy and reduce energy consumption.

[0038] The light sensor is separated from the first LED chip and the second LED chip to prevent the light generated by the first LED chip and the second LED chip from being directly detected by the light sensor while detecting the external light intensity, thereby affecting the operation of the light sensor.

[0039] Specifically, the light generated by the first LED chip and the second LED chip can only be reflected by nearby objects (mainly plants) to be detected by the light sensor. In this way, by comparing the intensity of the reflected light with the original ambient light intensity, the distance between the surrounding plants and the light source and the shielding situation can be determined.

[0040] The controller is able to receive the light intensity detection data of the light sensor and calculate the power of the first LED chip and the second LED chip based on the light intensity detection data. The specific judgment logic is described in detail later.

[0041] The present application also provides a method of using a landscape lamp that can promote plant growth, refer to Figure 1 , the following steps are introduced.

[0042] S100: Collecting ambient light intensity data. When the light source is not turned on, directly measure the ambient light intensity data of the outside world. Depending on the placement of the landscape lights, the ambient light intensity data collected by the light sensor will also be different.

[0043] Specifically, during the day, landscape lights in an open area can fully receive natural light, while landscape lights in a location shaded by plants will inevitably detect lower ambient light intensity than landscape lights in an open area. Therefore, the location of landscape lights can be determined by detecting the intensity of ambient light.

[0044] Specifically in this embodiment, the landscape lights in places shaded by plants can produce different amounts of light due to the different degrees of shade by plants. Therefore, the start-up time of landscape lights in different locations is inconsistent. By setting the ambient light start-up threshold of the first LED chip, the landscape lights in places shaded by plants can be started early to generate enough light to illuminate the surrounding environment. However, the landscape lights in open areas can be started later because they are illuminated by light from other places and can maintain sufficient lighting light around them without starting early. Therefore, by setting the ambient light detection threshold of the first LED chip, the landscape lights in various locations can produce a consistent lighting effect around them and save some energy.

[0045] S200: Start the first LED chip and collect first light intensity data after the first LED chip is started.

[0046] The first LED chip is activated mainly for lighting and to detect the location of the landscape light. Specifically, when the first LED chip is activated, the light generated is scattered around. Since the light sensor is separated from the first LED chip, the light cannot be directly detected by the light sensor and can only be detected by the light sensor after being reflected by the surrounding plants. The surface of the plant is usually a rough non-mirror structure, so the main form of reflection is diffuse reflection, which is not affected by the specific shape and posture of the plant.

[0047] When the first light intensity data detected after starting the first LED chip increases significantly compared to the initial ambient light intensity data, it is determined that the landscape lamp is in a position shielded by plants; otherwise, it can be considered that the landscape lamp is in an open position.

[0048] S300: configuring the power of the second LED chip based on the ambient light intensity data and the first light intensity data.

[0049] The lighting efficiency of the second LED chip is not as good as that of the first LED chip, but it can promote plant growth by generating light of a special wavelength. However, if the first LED chip and the second LED chip are turned on at full power at the same time, energy will be wasted and too much light will be generated. Therefore, it is necessary to regulate the power of the first LED chip and the second LED chip so that the landscape lamp can have the functions of lighting and promoting plant growth, and at the same time achieve the optimal balance between work efficiency and work cost.

[0050] Specifically, the difference between the ambient light intensity data and the first light intensity data is first calculated, and the difference represents the light intensity detected by diffuse reflection of the light generated by the first LED chip. Then, the difference is compared with the original ambient light intensity data to accurately determine the position of the landscape lamp, thereby adjusting the power of the first LED chip and the second LED chip based on the degree to which the landscape lamp is shaded by the surrounding plants.

[0051] Specifically in this embodiment, the power of the second LED chip is based on the formula Calculate, where W1 is the power of the first LED chip, W2 is the power of the second LED chip, k is the relative luminous efficiency, ε b is the ambient light intensity, and ε1 is the first light intensity. Since the luminous efficiency of the first LED chip and the second LED chip is different at the same power, the parameter k needs to be used for compensation. As a result, there is an exact formula to calculate the power between the second LED chip and the first LED chip, so as to balance the power between the first LED chip and the second LED chip with quantitative data, taking into account both improving the lighting efficiency of the landscape lamp and promoting the growth efficiency of plants.

[0052] S400: Regulating the power of the first LED chip and the second LED chip.

[0053] After starting the second LED chip, although the ratio of the power of the first LED chip and the second LED chip is adjusted, the overall power still needs to be adjusted. For example, the first LED chip and the second LED chip work at a higher power at the same time, resulting in energy waste. For another example, the first LED chip and the second LED chip work at a lower power at the same time, although a certain ratio is maintained, the overall light output is still insufficient.

[0054] Therefore, it is necessary to set a total luminous intensity threshold. When the light sensor detects that the external light intensity is greater than the upper threshold, the first LED chip and the second LED chip are proportionally lowered. When the light sensor detects that the external light intensity is greater than the upper threshold, the first LED chip and the second LED chip are proportionally lowered, thereby avoiding the problem of insufficient light intensity or energy waste.

[0055] The invention principle of the landscape lighting lamp that can promote plant growth in the present application is: by comparing the current ambient light intensity and the light intensity reflected by the plant after the light source is turned on, the position of the landscape lighting lamp is determined. Then, based on the position of the landscape lighting lamp, an algorithm is used to adjust the first LED chip used for lighting and the second LED chip used for promoting plant growth, so that the landscape lighting lamp can achieve a balance between energy saving and plant growth through intelligent regulation.

[0056] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0057] The above-described embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be construed as limiting the scope of the patent application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent application shall be subject to the attached claims.

Claims

1. A method for using a landscape lighting lamp that can promote plant growth, characterized in that: Landscape lighting that can promote plant growth includes: A light source, comprising a first LED chip and a second LED chip, wherein the first LED chip and the second LED chip generate light with different spectra, the first LED chip is used for lighting, and the second LED chip is used for promoting plant growth; A light sensor, disposed separately from the light source, for detecting the intensity of external light; A controller, communicatively connected to the first LED chip, the second LED chip and the light sensor, the controller responding to the external light intensity to adjust the power of the first LED chip and the second LED chip; The method for using the landscape lighting lamp capable of promoting plant growth comprises the following steps: Collect ambient light intensity data; Starting the first LED chip and collecting first light intensity data after the first LED chip is started; Configuring the power of the second LED chip based on the ambient light intensity data and the first light intensity data specifically includes: Calculating a difference between the ambient light intensity data and the first light intensity data; Based on the ratio of the difference to the ambient light intensity data, the power of the second LED chip is configured with reference to the power of the first LED chip, and the power of the second LED chip is based on the formula Calculate, where is the power of the first LED chip, is the power of the second LED chip, is the relative luminous efficiency, is the ambient light intensity, is the first light intensity, wherein, since the luminous efficiency of the first LED chip and the second LED chip at the same power is different, it is necessary to use the parameter to make compensation; The power of the first LED chip and the second LED chip is adjusted.

2. The method for using the landscape lighting lamp capable of promoting plant growth according to claim 1, characterized in that: The controller includes a time control module, and the time control module controls the operation of the second LED chip by using a pulse signal.

3. The method for using the landscape lighting lamp capable of promoting plant growth according to claim 1, characterized in that: The wavelength of the light generated by the second LED chip is 610nm to 730nm.

4. The method for using the landscape lighting lamp capable of promoting plant growth according to claim 1, characterized in that: The step of adjusting the power of the first LED chip and the second LED chip is specifically: Setting the total luminous intensity of the first LED chip and the second LED chip; Based on the total luminous intensity data, the power of the first LED chip and the second LED chip are adjusted in proportion so that the collected light intensity data is equal to the total luminous intensity.

5. The method for using the landscape lighting lamp capable of promoting plant growth according to claim 1, characterized in that: After the step of collecting ambient light intensity data, the method further includes: Setting a condition for starting the first LED chip; Determine whether the first LED chip is started.

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