HORTICULTURAL LIGHT
A horticultural lighting system and method for controlling same. Lights operating at different peak wavelengths, which affect the color of lights, can be optimized for different plant species during different stages of growth. The present disclosure pertains to a horticultural light, a system of horticultural lights, and a method for controlling light output to optimize different types of plants in various stages of plant growth cycles.
The present application is related to and claims benefit under 35 U.S.C. §119(e) from U.S. Provisional Patent Application No. 62/360,077, filed Jul. 8, 2016, titled “HORTICULTURAL LIGHT” (attorney docket no. 208272-9275-US00), the entire contents of which being incorporated herein by reference.
BACKGROUNDPlants are often grown in an enclosed environment so that growers can better control ambient factors that affect plant growth (e.g., temperature, sunlight, and moisture). Cultivating plants in an enclosed environment requires an artificial light source to replace sunlight.
SUMMARYLights operating at different peak wavelengths, which affect the color of lights, can be optimized for different plant species during different stages of growth. The present disclosure pertains to a horticultural light, a system of horticultural lights, and a method for controlling light output to optimize different types of plants in various stages of plant growth cycles.
Other aspects will become apparent by consideration of the detailed description and accompanying drawings
Skilled artisans will appreciate that elements in the figures are illustrated for simplicity and clarity and have not necessarily been drawn to scale. Illustrations may show only those specific details that are pertinent to understanding the embodiments presented so as not to obscure the disclosure with details that will be readily apparent to those of ordinary skill in the art in light of the description herein.
DETAILED DESCRIPTIONEmbodiments presented herein relate to an array of different colored light emitting diodes (LEDs) operating at various peak wavelengths in a horticultural light. A user may control the light intensity of each LED color group in the horticultural light to produce an appropriate light mix output that optimizes different stages of plant growth.
One example embodiment provides a horticultural lighting fixture. The lighting fixture includes a housing fixture having an outer surface including an opening. The lighting fixture includes an array of different colored light emitting diodes (LEDs) operating at various peak wavelengths. The lighting fixture includes a current control channel in electrical communication with at least one of the LEDs. The lighting fixture includes a fixture control for controlling light wave intensity of each LED via the current control channel. The lighting fixture includes a fixture firmware to store programmable user input. The lighting fixture includes a fixture ID to identify the housing fixture in a system of horticultural lights.
Another example embodiment provides a system of horticultural lights. The system includes a plurality of horticultural lights, each consisting a housing fixture and an array of different colored light emitting diodes (LEDs). The system includes a plurality of current control channels in electrical communication with at least one of the LEDs. The system includes a plurality of fixture controls for controlling light wave intensity of each LED via the current control channel. The system includes a fixture mesh network including at least one fixture control. The system includes an at least one master fixture control for receiving information from a user and relaying the information to other fixture control(s) in the fixture mesh network. The system includes a plurality of fixture firmware consisting one or more zone control variable, the one or more user input recipe, and multiple preset modes of operation.
Another example embodiment provides a method for programming a horticultural light. The method includes receiving a user input including intensity level for at least one LED color group. The method includes transmitting the user input to a fixture control. The method includes relaying information between a network of at least one fixture controls. The method includes, based on the relayed information, controlling a wavelength intensity of a light emitting diode (LED) to produce a desirable colored light.
Before any embodiments are explained in detail, it is to be understood that the disclosure is not limited in its application to the details of construction and the arrangement of components set forth in the following description or illustrated in the following drawings. The disclosure is capable of other embodiments and of being practiced or of being carried out in various ways. Also, it is to be understood that the phraseology and terminology used herein is for the purpose of description and should not be regarded as limiting. Use of “including” and “comprising” and variations thereof as used herein is meant to encompass the items listed thereafter and equivalents thereof as well as additional items. Use of “consisting of” and variations thereof as used herein is meant to encompass only the items listed thereafter and equivalents thereof. Unless specified or limited otherwise, the terms “mounted,” “connected,” “supported,” and “coupled” and variations thereof are used broadly and encompass both direct and indirect mountings, connections, supports, and couplings.
It should also be noted that a plurality of hardware and software based devices, as well as a plurality of different structural components may be used to implement the invention. In addition, it should be understood that embodiments of the invention may include hardware, software, and electronic components or modules that, for purposes of discussion, may be illustrated and described as if the majority of the components were implemented solely in hardware. However, one of ordinary skill in the art, and based on a reading of this detailed description, would recognize that, in at least one embodiment, the electronic-based aspects of the invention may be implemented in software (e.g., stored on non-transitory computer-readable medium) executable by one or more processors. As such, it should be noted that a plurality of hardware and software based devices, as well as a plurality of different structural components may be utilized to implement the invention. For example, “control units” and “controllers” described in the specification can include one or more processors, one or more memory modules including non-transitory computer-readable medium, one or more input/output interfaces, and various connections (e.g., a system bus) connecting the components.
For ease of description, some or all of the exemplary systems presented herein are illustrated with a single exemplar of each of its component parts. Some examples may not describe or illustrate all components of the systems. Other exemplary embodiments may include more or fewer of each of the illustrated components, may combine some components, or may include additional or alternative components.
Each horticultural light 10 has an array 12 (See
Despite the limited spectrum, the use of multiple color groups of LEDs in a horticultural light system may be preferable to a system of traditional gas discharge bulbs, such as high intensity discharge (HID) bulbs or plasma bulbs, since LEDs are directly controlled by the amount of current received, providing finer control of the produced light spectrum of the system. Additionally, LEDs are more power efficient and have significantly longer lifespans than most traditional bulbs.
The fixture control 20 regulates current flow to each LED color group 18 within the horticultural light.
Referring now to
The master fixture control 20 may receive user recipes 40a via a hand-held device (for example, a smart phone), a computer, or another computing device. For example, as illustrated in
In some embodiments, only the fixture control 20 to be updated will receive the user recipe 40a and will make adjustments to the light mix output. In such embodiments, the user recipe 40a is not transmitted to the other fixture control(s) 20 in communication with the fixture mesh network 76.
In some embodiments, using the fixture mesh network interface, the master fixture control 20 transmits the user recipes 40a to other fixture control(s) 20 in the system of horticultural lights in communication with the fixture mesh network. Accordingly, a user may control multiple horticultural lights in different zones to operate under different recipes as opposed to all horticultural lights outputting the same light mix.
A similar sequence of steps is followed for recipe instructions transmitted via a computer or other computing device. For example, a personal computer (PC) 72 including a fixture control application, for example, the application 39, may send a signal to the fixture mesh network 76 via a USB bridge node (not shown). The USB Bridge includes a USB port and an antenna that transmits information from the PC 72 to the fixture mesh network module 76. When the fixture control 20 connects to the fixture mesh network module 76. Once connected, the fixture control 20 adjusts the light mix output and updates the recipe 40a in the fixture firmware based on the user input, for example, located within a zone specified by the use. Firmware may store one or more zone control variables, one or more user input recipes, and multiple preset modes of operation. In some embodiments, the recipe 40a is stored in nonvolatile memory, thus retaining stored recipe information in the event of a power outage. As discussed above, in other embodiments, a different type of networks 19(a-c) could be used to transmit information from the PC 72 to the fixture control(s) 20.
Horticultural lights may be controlled individually, a group of horticultural lights may be controlled according to zone specifications, or all horticultural lights may be controlled in unison. If a user chooses to control the system of horticultural lights according to zones, the system performs a test to confirm whether a located fixture control 20 is the fixture control 20 specified by the user.
The smart phone 68 or the computer 72 transmit recipes to the mesh network modules 76, 76a, as described above. At block 202, when the message received is addressed to the local host and the destination module is that lighting fixture, the message is processed by that host, at block 204. Otherwise, the mesh network module 76 receives the message and determines whether it is addressed locally or remotely, at block 206. When the message is addressed remotely, it is sent to the mesh network module 76a, which determines, at block 208, whether the message is addressed to it. When the message is addressed to that lighting fixture and module, at block 210, the message is processed by the network module, at block 212. At block 206, when the message is addressed to that lighting fixture and module, at block 214, the message is processed by the network module, at block 216.
Although aspects have been described in detail with reference to certain preferred embodiments, variations and modifications exist within the scope and spirit of one or more independent aspects as described.
Claims
1. A horticultural light comprising:
- a housing fixture having an outer surface including an opening;
- an array of different colored light emitting diodes (LEDs) operating at various peak wavelengths;
- a current control channel in electrical communication with at least one of the LEDs;
- a fixture control for controlling light wave intensity of each LED via the current control channel;
- a fixture firmware to store programmable user input; and
- a fixture ID to identify the housing fixture in a system of horticultural lights.
2. The horticultural light according to claim 1, wherein the array of different colored LEDs contain one or more infrared (IR) LED, one or more red LED, one or more blue LED, one or more ultraviolet (UV) LED, and one or more white LED.
3. The horticultural light according to claim 2, wherein each of the IR LEDs have a wavelength of 730 nm.
4. The horticultural light according to claim 2, wherein some of the red LEDs have a wavelength of 660 nm, and some of the red LEDs have a wavelength of 634 nm.
5. The horticultural light according to claim 2, wherein each of the blue LEDs have a wavelength of 465 nm.
6. The horticultural light according to claim 2, wherein each of the UV LEDs have a wavelength of 385 nm.
7. The horticultural light according to claim 2, wherein each of the white LEDs are 5000 k.
8. The horticultural light according to claim 1, further comprising a current measuring device in electrical communication with at least one LED color group, the current measuring device detecting current flow to the LED color group.
9. The horticultural light according to claim 8, wherein the current measuring device detects a zero current or current fault.
10. A system of horticultural lights comprising:
- a plurality of horticultural lights, each consisting a housing fixture and an array of different colored light emitting diodes (LEDs);
- a plurality of current control channels in electrical communication with at least one of the LEDs;
- a plurality of fixture controls for controlling light wave intensity of each LED via the current control channel;
- a fixture mesh network including at least one fixture control;
- an at least one master fixture control for receiving information from a user and relaying the information to other fixture control(s) in the fixture mesh network; and
- a plurality of fixture firmware consisting one or more zone control variable, the one or more user input recipe, and multiple preset modes of operation.
11. The system of horticultural lights according to claim 10, further comprising a plurality of current measuring devices, each of the current measuring devices in electrical communication with at least one LED color group and detecting current flow to the LED color group.
12. The horticultural light according to claim 11, wherein each of the current measuring devices detects a zero current or current fault.
13. A method of programming a horticultural light comprising:
- receiving a user input including intensity level for at least one LED color group;
- transmitting the user input to a fixture control;
- relaying information between a network of at least one fixture controls; and
- based on the relayed information, controlling a wavelength intensity of a light emitting diode (LED) to produce a desirable colored light.
14. The method of programming the horticultural light according to claim 13, wherein the fixture control can be updated via a wireless interface.
15. The method of programming the horticultural light according to claim 14, wherein a master fixture control can receive the recipe via a wireless interface and transmit the information to other fixture control(s) in a fixture mesh network.
16. The method of programming the horticultural light according to claim 14 wherein a fixture firmware can be updated by connecting to an electrical control device via a USB bridge node, including a USB port and antenna.
17. The method of programming the horticultural light according to claim 13, further comprising measuring a current flow in at least one LED color group.
18. The method of programming the horticultural light according to claim 17, wherein the measuring step includes detecting zero current or a current fault.
Type: Application
Filed: Jul 10, 2017
Publication Date: Jan 11, 2018
Inventors: Bruce Rhodes (Inverness, IL), Paul Kolenda (Batavia, IL), Bogdan Gheorge (Oak Park, IL), Judet Useinovski (West Chicago, IL)
Application Number: 15/645,565