Light diode phyto-irradiator

FIELD: agriculture.

SUBSTANCE: light diode phyto-irradiator comprises circuit boards with light elements consisting of groups of light diodes with different spectra of radiation, a fan and a control system with a switch of light diode groups, an illumination sensor and a sensor-spectrometer. Circuit boards are arranged from a flexible material in the form of semicylinders, are connected in pairs with sheds and are installed into a cylindrical dome. Light diodes are arranged at the outer side of circuit boards in several rows. The control system is installed outside the borders of the vessel and is arranged on the basis of an industrial computer, which controls a phyto-irradiator in accordance with the program.

EFFECT: reduced material intensity of a device and a simplified control system, higher efficiency of device light energy usage by cultivated plants, improved conditions for the photosynthesis process, and as a result, crop capacity of plants in a protected soil increases, time for vegetable growing is reduced.

2 cl, 2 dwg

 

The invention relates to agricultural machines, namely, illuminators designed for the cultivation of various plant products, herbs, vegetables or flowers in buildings protected ground.

A device for lighting plants, which is a metal halide lamp (IPF), in a flask which introduce additives halides and other elements such as aluminum, silicon, and others, resulting in receive light from the three spectra - blue (C) in the range of 400-500 nm, red (K) in the range of 600-700 nm and yellow-green (C) in the range of 500-600 nm, ratio: C/K/C(20%±5%)/(40%±5%)/(40%±5%). When the bulb is filled with inert gases with high pressure [RF patent №2040828, IPC A01G 9/26, "a device for irradiation of plants", publ. 27.07.1995,, bull. No. 21].

The disadvantages of the known device for lighting plants are as follows:

1) light range picoprojector made in the form of IPF, consists of three broadband spectra and is not optimal photosynthetic activity of plants (PAA), so illuminator consumes unnecessary energy for generating light;

2) in the process of the IPF spectral composition of their unpredictable changes that worsens the conditions of plant growth;

3) modify the spectral composition of radiation with POM is using the known lamp is impossible, and, as practice shows crop for cultivation of various plant species, the spectral composition of the illumination, it is desirable to change as they grow and Mature;

4) IPF has a high body temperature and under certain conditions can burn plants or to increase the temperature of the greenhouse to an unacceptable level;

5) IPF lamp explosive and can scatter into fragments accidental exposure to spray arising in the process of watering plants;

6) to turn on the lamp requires a special start-control devices (PRA), consisting of an incendiary device and the ballast resistor, which lost part of your power;

7) the lamp does not exceed 5000 hours, which increases operating costs for lighting.

It is also known device artificial lighting of plants depending on the intensity and spectral composition of ambient light in accordance with the set mode, irradiation [RF patent №2278408, IPC G05D 25/00, "Universal polychromatic irradiation", publ. 20.06.2006,, bull. No. 17]. The irradiator contains multiple groups of LEDs with different emission spectrum, complementary, including infrared and ultraviolet, and the heater is made in the form of a source of infrared radiation with directional heat flow. In the UE system is Alenia automatic control cycle exposure by time of day any zone of the globe, automatic control of lighting modes in accordance with weather conditions, for example, "sun", "mostly cloudy", etc. it has a sensor scan of the spectral composition of the optical range of the exposure and correction based on the feedback of the resulting spectral composition by connecting the respective groups of LEDs.

The disadvantages of the devices known irradiator is that:

1) his body has a complex structure, and when exposed to moisture entering the housing, for example, from above, the floodlight can be damaged;

2) part of the light is lost due to the fact that the body irradiator prevents the passage of light flux going to the lighted object from an external source of illumination;

3) when the irradiation is not taken into account the stages of ontogenesis of plants, and it is not possible pulse enable picoprojector adjustable exposure time and duration of the dark pauses.

It is also known device led picoprojector [RF patent №2369086, IPC A01G 9/20, "Led picoprojector", publ. 10.10.2009,, bull. No. 28]was chosen for the prototype, which led picoprojector includes a housing with light elements consisting of groups of LEDs with different spectra of radiation, the unit of electric power, microprocessor-based systems the control switch groups of LEDs, the light sensor, the sensor is a spectrometer that affect groups of LEDs through the control unit and allows you to adjust the spectral composition of the light source depending on ambient light and sensitive plant species. Case picoprojector made in the form of a rectangular frame made of U-shaped channel, the LEDs are located on the circuit Board installed in one row in a transparent sealed ceiling (in variants of technical solutions lampshades made in the form of tubes, shaped profile, a rectangular shaped profile, a rectangular shaped profile with a rounded front part of the ceiling)ceiling mounted inside the housing with a gap relative to each other in several parallel rows. In the embodiment, the technical solution in the control unit led floodlight introduced a programmable controller operating Protocol stacks, forming a control mode LEDs in accordance with HEADLIGHTS and a set of symbols indicating the type of plants and the stage of ontogenesis. In the embodiment, the technical solution in the control scheme introduced programmable controller that provides the specified pulse mode enable light sources, with the regulator exposure time and regulator of the duration of the dark breaks. In the embodiment, the technical solution of the rectangular RA is and provided with a top cover with fan.

The LEDs are divided into groups with different emission spectrum. The emission spectrum of the LEDs is selected in such a way that its composition corresponded to the needs of the plants of one kind or another for optimum photosynthesis. The ratio of the light flux is chosen in advance and then can be adjusted within wide limits. This ratio is adjusted in accordance with the type and stage of plant development. LEDs of different radiation spectrum is distributed along the front surface of picoprojector evenly. When this group of LEDs of a particular spectrum of radiation is predominantly in one of the ceiling, and the ceiling alternate. Some LEDs may have ultraviolet and infrared radiation spectra.

The control system includes a power supply and a microprocessor control system, which is built computer block job mode enable (BSRV). To BSRV in turn connected to a programmable controller for translation scheme from manual mode to automatic, ambient light sensor, a spectrometer, a timer, and programmable controller plant species. In addition, the control system introduced programmable controller set modes for maintaining the circadian cycle of change of the spectrum of light and amount of light matched with the accordance with the selected program. Also in the scheme can be introduced programmable controller, which allows to take into account the type of the external light source. In the embodiment, the technical solution in the control scheme introduced programmable controller that provides the specified pulse mode enable light elements with a regulator that controls the duration of light pulses, with dimmer and controller duration of the dark pauses.

Disadvantages chosen for the prototype of the irradiator are:

1) design picoprojector assumes its fixation on the supporting structures of the greenhouse, so picoprojector placed over the plants at a considerable height, and the upper tier of leaves can prevent the admission of light to the lower tiers of leaves;

2) the presence of the metal housing increases its intensity;

3) in each irradiator built a very complex control system, which includes several programmable controllers, which significantly increases the cost of the feed.

The purpose of this invention is to improve the efficiency of light energy irradiation facility cultivated plants, providing the best conditions for the process of photosynthesis and, consequently, increase the yield of plants protected ground, shorten the cultivation of plant products increased the E. its nutritional and taste qualities, improvement of commercial species, as well as the dematerialization of the device and simplification of the control system.

The objective is achieved due to the fact that vetoablechange containing Board with light elements consisting of groups of LEDs with different spectra of radiation, equipped with a fan and a control system to switch groups of LEDs, a light sensor and sensor spectrometer, unlike the prototype, the boards are made from a flexible material in the form of semi-cylinders are connected in pairs canopies and set in a transparent cylindrical lampshade, the LEDs are located on the outer side boards in several rows, in addition, photobleaching suspended on a rope and is height adjustable with electric drive and control system is located outside the housing and made on the basis of an industrial computer that manages vetoablechange program.

This design vetoablechange allows you to omit it inside planting. The result is that plants do not stretch to the light, as all tiers of the leaves are covered evenly, therefore, the luminous flux is used more rationally all the leaves of the plant. In addition, when such an organization, dosvechivaniya may apply thickened method of planting in which each square meter of area planted to 8-10 is astini, while the traditional is only 3-4. The connection boards interconnected canopies allows, if necessary, to open them, which facilitates the process of installation and repair. The suspension of the feed cable and the use of electric drive allows you to adjust the hanging height of the irradiator. In addition, this design vetoablechange is less intensity because there is no metal casing, as well as a smaller value, as the control system is located outside the housing of the irradiator, which allows to combine in one system several irradiators.

The set of features of the proposed vetoablechange not known and not obvious from the prior art, which allows to conclude that the technical solutions according to the criteria of "novelty" and "inventive step".

The invention consists in the following. Led photobleaching presented in figure 1, contains Board 1 with light elements 2, consisting of groups of LEDs with different spectra of radiation. The boards are made from a flexible material in the form of semi-cylinders and are connected in pairs canopies 3, allowing, if necessary, to open them, which facilitates the process of installation and repair. Lead wires are located on the inner side of the boards. The LEDs are located on the outer side boards in several rows. the number of LEDs in series, the number of rows on the boards, as well as the number of pairwise connected cards depends on the power of LEDs, the required total quantity of the light flux and spectrum of radiation. Motherboard installed in a transparent cylindrical dome 4, made for example of acrylic. To the upper part of the canopy is attached to the fan 5 that directs the air flow within the canopy along the boards, which provides the necessary cooling. The irradiator is suspended on the cable 6. The application of the electric drive 7 allows you to raise or lower the feed to the desired height.

The LEDs 2 are divided into groups with different emission spectrum. The emission spectrum of the LEDs is selected in such a way that its composition corresponded to the needs of the plants of one kind or another for optimal photosynthesis, and can be adjusted within wide limits. LEDs of different radiation spectrum is distributed along the front surface of vetoablechange evenly. Part of the led can also have ultraviolet and infrared radiation spectra.

The control system (figure 2) is located outside the housing vetoablechange that allows to combine in one system dozens of irradiators, and includes a computer unit, made on the basis of the industrial computer.

Led photobleaching hung on the rope and is allowed inside of the landings so to all tiers of the plant leaves were covered evenly. Led photobleaching works in the following way: the computer unit (8) for the program based on the data received from sensor ambient light sensor (11) and the sensor spectrometer (12), generates the control signal through the switch of groups of light-emitting diodes (9) acts on the group of LEDs (2) and allows you to adjust the intensity and spectral composition of the light source depending on ambient light and sensitive plant species. The intensity of light can be controlled by switching on and off the necessary amount of boards with light elements, and spectral composition by the inclusion of groups of LEDs with different spectra of radiation.

In addition, the computer unit entered information to form a specific control mode LEDs in accordance with the values of photosynthetically active radiation (PAR) and data about plants and stages of their ontogenesis.

If necessary, a computer unit allows the pulse enable light sources to control the exposure time and duration of the dark breaks. The use of the pulse mode enable light sources can reduce specific energy consumption.

The application of this vetoablechange significantly p which increases the efficiency of utilization of light energy irradiation facility cultivated plants, and therefore, can reduce the duration of the vegetation period prior to fruiting, to increase the productivity of the plants themselves, but also to improve product quality fruits and their content of sugars and vitamins.

In addition, the invention has a lower metal content, and also reduces the cost of equipment is considered industrial greenhouses, because the control system is located outside the housing vetoablechange and executed on the basis of modern industrial computer that allows you to combine in one system the tens and even hundreds of irradiators.

1. Led photobleaching containing Board with light elements consisting of groups of LEDs with different spectra of radiation, fan and control system with switch groups of LEDs, a light sensor and sensor spectrometer, characterized in that the boards are made from a flexible material in the form of semi-cylinders are connected in pairs canopies and installed in a cylindrical dome, the LEDs are located on the outer side boards in several rows, and the control system outside of the case and based on industrial PC that is managing vetoablechange program.

2. Led photobleaching according to claim 1 suspended on a rope and is height adjustable by electric actuators.



 

Same patents:

FIELD: electrical engineering.

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FIELD: agriculture.

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FIELD: agriculture.

SUBSTANCE: invention relates to the field of lighting technology and may be used to grow crops under artificial lighting. In method intensities of light flow and spectral composition of light source are periodically changed. Illumination of plants in sheltered ground structures is realised on the basis of principle of doubling natural daily rhythm due to smooth changeover of illumination level from night to day and back. Changeover takes place twice a day, with account of change in moon and sun spectra of radiation. Besides peaks of maximum daily illumination correspond to moments of upper, daily, and lower, night, culminations of sun. Ratio of light and dark periods duration depends on extent of vegetative ripeness and type of grown crops.

EFFECT: method makes it possible to increase crop capacity by optimisation of light mode, to increase speed of plants growth, to reduce consumption of electric energy, as well as to expand range of application.

FIELD: agriculture.

SUBSTANCE: according to the method regulation for this type of plant values of percentages of energy in various spectral bands of photosynthetically active radiation (PAR) are set. Range of PAR is isolated from the total flux, energy flow in separate spectral bands of PAR is measured. The percentages of energy in various spectral bands are calculated in relation to the energy of PAR. The value of flow energy consumption of optical radiation is determined by the formula where and are respectively, regulatory, and measured percentages of the energy flux of radiation in the i-th spectral band.

EFFECT: method enables to increase the information content at measurement of value which characterises the energy efficiency of irradiation process.

2 dwg, 1 ex

FIELD: agriculture.

SUBSTANCE: in the process the flow of optical radiation of normalised is formed for the given crop plant intensity and duration. The spectral parametres of the flow are created that affect the plants by combined effect of several light sources of different specters. At that in preliminary experiments different ratios of one deal of one of the light sources in the general flow are imposed. Values of combination coefficient of sources flows in the general flow are calculated for the given ratios according to the formula , where ΦA, ΦB are respectively flows from sources A and B; the spectral fraction of the overall flow is calculated according to the formula where , are respectively the deals of flows in the i-th spectral ranges of sources A and B. Values of energy consumption are calculated by the formula , where are normalised values for the irradiated crops. The functional dependence of the energy consumption from the flow combination coefficient rate εµ=f(µ) is determined. Radiation regime is set at the value of the combination coefficient of flows, as corresponding to a minimum on the obtained functional dependence by changing the deal of flows from used light sources that form irradiance at the site of growing plants.

EFFECT: method provides energy savings at the regulation of radiation mode.

2 dwg, 1 tbl, 1 ex

FIELD: electrical engineering.

SUBSTANCE: lamp is comprised of a body in the form of translucent tubular bulb with light diodes being located inside this bulb on the extended boards, at least in tow rows. Besides, maximums of light diodes direction patterns in each row are located under the angle to each other. The longitudinal grooves are made opposite to each other and on the internal surface of translucent tubular bulb. The body is provided with bases having their flanges located in the longitudinal bulb grooves so that they can be shifted or fixed. The extended boards of light diodes contact with the above bases. The artificial illumination method to light rooms or cages for birds and to affect birds with luminous radiation is implemented with the help of the above mentioned lamp.

EFFECT: production of durable, reliable in operation and practically feasible lamp based on light diodes with related method of artificial lighting.

8 cl, 8 dwg

FIELD: agriculture.

SUBSTANCE: light diode phyto-irradiator comprises circuit boards with light elements consisting of groups of light diodes with different spectra of radiation, a fan and a control system with a switch of light diode groups, an illumination sensor and a sensor-spectrometer. Circuit boards are arranged from a flexible material in the form of semicylinders, are connected in pairs with sheds and are installed into a cylindrical dome. Light diodes are arranged at the outer side of circuit boards in several rows. The control system is installed outside the borders of the vessel and is arranged on the basis of an industrial computer, which controls a phyto-irradiator in accordance with the program.

EFFECT: reduced material intensity of a device and a simplified control system, higher efficiency of device light energy usage by cultivated plants, improved conditions for the photosynthesis process, and as a result, crop capacity of plants in a protected soil increases, time for vegetable growing is reduced.

2 cl, 2 dwg

FIELD: agriculture.

SUBSTANCE: light diode radiator comprises a body from a heat conductive material, at least partially ribbed at the rear side. The body has an outlet hole, which is closed with an optically transparent protective glass or a diffuser. Inside the body there are linear boards installed with assembled groups of light diodes with a different spectrum of radiation in the range of spectral efficiency of photosynthesis /400-700 nm/ with optical axes, facing the outlet hole of the body, and connected to a source of supply. At least on two internal side walls of the concave body there is a cascade of longitudinal plates forming terraces from a heat conductive material, which create ribs of an internal radiator of a conductive heat sink. Longitudinal plates are in thermal contact with body walls and face the outlet hole with a flat part. On each plate there are linear boards /lines/ installed in thermal contact, mostly boards with an aluminium base with high-capacity light diodes or light diode modules, or separate light diodes, which are connected in series or in parallel-serial chains to a source of supply.

EFFECT: design will make it possible to improve thermal and spectral characteristics, to increase density of radiation flow with reduced dimensions of a radiator.

6 cl, 7 dwg

FIELD: agriculture.

SUBSTANCE: invention relates to the field of agriculture, in particular, to growing plants in protected ground. The method includes planting of plants and their growing with periodic lighting the plants. At that the lighting is carried out with optical radiation focused with use of an optical system comprising an optical energy source and a reflector, located outside the closed space with the ability of transmitting at least one beam of optical energy into the closed space on at least one rotatable reflector placed in the closed space with the ability of transmitting the optical energy to the plants. Moreover, the time of lighting of a plant for 0.5-1.0 seconds is used, with an interval between lighting of 9-15 seconds.

EFFECT: method enables to improve the efficiency of light-pulse treatment of plants and simplify growing the plants in the closed space.

10 cl

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