CN112335439A - Plant growth illumination device with optical signal based on biological recognition and control method thereof - Google Patents
Plant growth illumination device with optical signal based on biological recognition and control method thereof Download PDFInfo
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G7/00—Botany in general
- A01G7/04—Electric or magnetic or acoustic treatment of plants for promoting growth
- A01G7/045—Electric or magnetic or acoustic treatment of plants for promoting growth with electric lighting
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V23/00—Arrangement of electric circuit elements in or on lighting devices
- F21V23/003—Arrangement of electric circuit elements in or on lighting devices the elements being electronics drivers or controllers for operating the light source, e.g. for a LED array
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V23/00—Arrangement of electric circuit elements in or on lighting devices
- F21V23/04—Arrangement of electric circuit elements in or on lighting devices the elements being switches
- F21V23/0442—Arrangement of electric circuit elements in or on lighting devices the elements being switches activated by means of a sensor, e.g. motion or photodetectors
- F21V23/0471—Arrangement of electric circuit elements in or on lighting devices the elements being switches activated by means of a sensor, e.g. motion or photodetectors the sensor detecting the proximity, the presence or the movement of an object or a person
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
- F21V29/50—Cooling arrangements
- F21V29/70—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks
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- Life Sciences & Earth Sciences (AREA)
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- Biodiversity & Conservation Biology (AREA)
- Botany (AREA)
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Abstract
The invention discloses a plant growth illumination device with optical signals based on biological identification and a control method thereof, wherein the plant production illumination device with optical signals based on biological identification comprises a control part and an illumination part, wherein the illumination part comprises a first light source part and a second light source part, the first light source part emits red light and blue light, and the second light source part emits far-red light; the control part comprises a controller, a photosensitive sensor, a temperature sensor, an infrared biological recognition device, an ultrasonic biological recognition device, a voice biological recognition device, an iris biological recognition device and/or a human face biological recognition device, and the controller controls the first light source part and the second light source part respectively according to data detected by the photosensitive sensor, the temperature sensor, the infrared biological recognition device, the ultrasonic biological recognition device, the voice biological recognition device, the iris biological recognition device and/or the human face biological recognition device.
Description
Technical Field
The present invention relates to a plant growth illumination apparatus having an optical signal based on biometric identification and a control method thereof, and more particularly, to a plant growth illumination apparatus having an optical signal based on biometric identification for a worker in a plant lighting environment and a control method thereof.
Background
In the natural environment, plants perform photosynthesis and development and growth by acquiring light components with effective wavelengths in sunlight. However, the natural environment is diverse and has risks of insect damage and the like. Therefore, plant factories that plant plants in closed spaces such as indoor spaces and simulate natural light by artificial lighting lamps have been gradually developed in recent years, and various large enterprises including philips, osram, GE, siemens and the like have entered this field.
Not all of the light of the various wavelengths contained in natural light can be utilized by plants, and essentially only blue and red light can be absorbed by plants. In particular, blue light B (e.g. 460nm) can help the growth of plant roots, with the most significant effect on early plant; the red light R (for example 660nm) is beneficial to the stem and leaf, flowering and fruit growth of plants; far-red FR (e.g. 730nm) is beneficial for controlling plant flowering and in vivo nutrient synthesis.
When the FR (R/FR) ratio of red light (R) and far-red light is increased, the stem node spacing of the plant is reduced, and the plant is dwarfed; on the contrary, the plants tend to elongate. The change of the R/FR ratio has different degrees of influence on the differentiation of axillary buds, the chlorophyll content, the stomata index, the leaf area and the like besides the influence on the plant morphology. The R/FR ratio has become an important evaluation parameter for controlling the plant morphology. In the past decade, researchers at home and abroad have conducted a great deal of research work on techniques for adjusting the R/FR ratio to control plant morphology. The method of increasing the proportion of red light or far-red light by supplementing light with an artificial light source is widely applied to actual greenhouse and tissue culture production. For example, a high-pressure sodium lamp is switched on timely, the proportion of far-red light FR is increased, and the elongation of the stems and leaves of the plants is promoted.
Disclosure of Invention
(problem to be solved)
The ratio of the number of red light to far-red light photons (R/FR) in the spectrum has an important influence on plant configuration and plant height adjustment. Among the LED light sources, the red LED and far red LED light sources are more likely to influence the photomorphogenesis and growth development of the tissue culture seedlings than fluorescent lamps. The ratio of R/FR can be flexibly changed according to needs by adjusting the number of the red LED and the far red LED light sources. However, the existing LED plant growth lamps are all plant LED growth lamps manufactured by a white light LED light source or a mixture of red and blue light LED light sources or a mixture of red, blue and white LED light sources. Because the red light luminous efficiency is low, in order to meet the spectrum and illumination intensity required by a plant photosynthetic pigment system, the plant LED growth lamp needs more red light LED light sources, the lamp power is high, the light quality distribution is uneven, and the cost is increased rapidly.
The problem in the process of supplementing infrared light by using a high-pressure sodium lamp is that 1) the ratio of R/FR is not easy to accurately control; 2) since the high pressure sodium lamp generates a large amount of heat during its operation, attention should be paid to prevent the generation of a high temperature environment.
(means for solving the problems)
In order to solve the above problems, the present invention adopts the following technical solutions.
A plant growth illumination device with optical signal based on biological recognition comprises a control part and a light emitting part, wherein,
the light emitting part comprises a first light source part and a second light source part, the first light source part emits red light and blue light, and the second light source part emits far-red light;
the control part comprises a controller, a photosensitive sensor, a temperature sensor, an infrared biological recognition device, an ultrasonic biological recognition device, a voice biological recognition device, an iris biological recognition device and/or a human face biological recognition device, and the controller controls the first light source part and the second light source part respectively according to data detected by the photosensitive sensor, the temperature sensor, the infrared biological recognition device, the ultrasonic biological recognition device, the voice biological recognition device, the iris biological recognition device and/or the human face biological recognition device.
Preferably, the blue light component emitted from the first light source unit has a light emission peak in a wavelength range of 400 to 480nm so as to correspond to a blue light domain absorption peak of chlorophyll,
the wavelength of the red light component emitted by the first light source part is in the range of 600-700 nm,
the ratio of the luminous flux density R in the range of 600nm to 700nm emitted by the first light source part to the luminous flux density B in the range of 400nm to 490nm is 4 to 10; the ratio of the light flux density R in the range of 600nm to 700nm emitted by the first light source unit to the light flux density FR in the range of 700nm to 750nm emitted by the second light source unit is 3 to 8.
Preferably, the first light source unit includes a solid-state light-emitting chip and a coating layer disposed outside the solid-state light-emitting chip, and the coating layer includes a red phosphor capable of absorbing excitation light emitted from the solid-state light-emitting chip and converting the excitation light into red light, so that the solid-state light-emitting chip implements a light source having a dominant wavelength of red light and blue light;
the second light source part comprises a solid light-emitting chip and a coating layer arranged on the outer side of the solid light-emitting chip, and the coating layer contains far-red light fluorescent powder which can absorb exciting light emitted by the solid light-emitting chip and convert the exciting light to emit far-red light; or the solid light-emitting chip is a GaAs/GaAs, AlGaAs/GaAs or AlGaAs/AlGaAs base chip emitting far-red light.
Preferably, the plant growth illumination device with optical signals based on biological recognition further comprises a third light source part, wherein the third light source part comprises a solid light-emitting chip and a coating layer arranged on the outer side of the solid light-emitting chip, and the coating layer contains yellow and/or green fluorescent powder capable of absorbing exciting light emitted by the solid light-emitting chip and converting the exciting light into white light.
Preferably, the plant growth illumination device with optical signal based on biometrics authentication further includes a timer that sets a time period for causing the first light source unit, the second light source unit, and the third light source unit to perform an illumination operation, and the control unit controls the first light source unit, the second light source unit, and the third light source unit according to the time period set by the timer, wherein the timer is set to: the first light source part, the second light source part and/or the third light source part are/is irradiated for 10-16h of accumulated radiation illumination intensity time.
Preferably, the light flux density of the first light source unit and the light flux density of the second light source unit are adjusted by adjusting a PWM waveform and a duty ratio of a current.
Preferably, the ratio of light quanta of red light and blue light of the first light source unit is fixed;
adjusting the light quantum proportion of red light, blue light and far-red light by adjusting the proportion of the first light source part and the second light source part;
the spectral proportion of the illumination device suitable for plant growth is adjusted by changing the number and the color temperature of the third light source parts.
Preferably, the light flux density of the yellow-green light of the third light source unit is not more than 30% of the total effective light flux density of the first light source unit and the second light source unit of the illumination device.
Preferably, the color temperature of the third light source part is 2000-10000K, and the illumination intensity of the radiated plant canopy is more than 100 lux;
and the proportion of red light, blue light and far-red light of the plant growth illumination device in the whole effective light quantity flux density is adjusted by selecting white light solid luminescent light sources of the third light source part with different color temperatures and quantities.
Preferably, the photosensor is configured to detect an intensity of external light and send detected external light intensity data to the controller, and the controller controls the second light source to turn off when the intensity of the external light is greater than a preset threshold.
Preferably, the temperature sensor is configured to detect an internal temperature of the plant factory and send detected internal temperature data of the plant factory to the controller, and the controller reduces the emission power of the first light source unit, the second light source unit, and/or the third light source unit when the internal temperature of the plant factory is greater than a preset upper limit value; when the internal temperature of the plant factory is lower than a preset lower limit value, the emission power of the first light source part, the second light source part and/or the third light source part is increased.
Preferably, the voice biometric identification device judges whether an operator exists in the plant factory according to the decibel value in the plant factory and outputs a switch signal to the controller; the controller controls the first light source part, the second light source part and/or the third light source part to be turned on and/or off according to a switching signal returned by the voice biological recognition device; the infrared biological recognition device is used for detecting an infrared signal in the plant factory and sending the infrared signal detected by the infrared biological recognition device to the controller, the controller judges whether an operator exists in the plant factory according to the signal detected by the infrared biological recognition device, and when the operator exists, the controller controls the first light source part, the second light source part and/or the third light source part to be turned off.
Preferably, the photosensitive sensor, the temperature sensor, the infrared biological recognition device, the ultrasonic biological recognition device, the voice biological recognition device, the iris biological recognition device and/or the face biological recognition device are/is connected to the controller through an AD converter, and the voice biological recognition device is directly connected to an IO port of the controller;
the controller judges whether an operator exists in the plant production facility according to the signal detected by the infrared biological recognition device and controls the first light source part, the second light source part and/or the third light source part to be turned on and/or turned off according to the judgment result;
the ultrasonic biological recognition device detects the position of an operator in real time and transmits the position information of the operator to the controller, and the controller controls the first light source part, the second light source part and/or the third light source part near the operator to be turned off according to the position information of the operator detected by the ultrasonic biological recognition device;
the voice biological recognition device is used for receiving the voice in the plant production facility and transmitting the voice signal detected by the voice biological recognition device to the controller, the controller judges whether an operator exists in the plant production facility according to the decibel value in the plant production facility, and controls the first light source part, the second light source part and/or the third light source part to be turned on and/or turned off according to the voice signal detected by the voice biological recognition device;
the iris biological recognition device detects iris information of human eyes and transmits acquired iris signals to the controller, and the controller controls the first light source part, the second light source part and/or the third light source part to be turned on and/or turned off according to the iris information of the human eyes detected by the iris biological recognition device;
the human face biological recognition device detects image information of operators in the plant production facility and transmits the acquired image information to the controller, and the controller controls the first light source part, the second light source part and/or the third light source part to be turned on and/or turned off according to the image information of the operators detected by the human face biological recognition device.
Preferably, the controller is connected to a control device through a GPIO interface, and the control device is connected to the first light source unit, the second light source unit, and the third light source unit.
A method for controlling a plant growth illumination device with an optical signal based on biometric identification, comprising the steps of:
setting the time and working period for starting illumination, and controlling the first light source part, the second light source part and the third light source part to be started by the control part after the illumination starting time is reached;
judging the irradiated plants, and determining illumination parameters according to the types of the irradiated plants;
the control part controls the first light source part, the second light source part and the third light source part to work according to the illumination parameters;
and judging whether the working time of the first light source part, the second light source part and the third light source part reaches the working time interval or not, and if the working time interval reaches, controlling the first light source part, the second light source part and the third light source part to be closed by the control part.
Preferably, during the operation of the first light source unit, the second light source unit and the third light source unit, the human body sensing unit senses whether a human body enters the lighting environment, and the control unit controls the first light source unit and the second light source unit to be turned off at least after the human body enters the lighting environment, and controls the first light source unit and the second light source unit to be turned on at least after the human body enters the lighting environment and leaves the lighting environment.
A plant growth illumination device with optical signal based on biological recognition comprises a control part and a light emitting part, wherein,
the light emitting part includes a first light source part emitting red light and blue light, a second light source part emitting far-red light, and a third light source part emitting white light,
wherein the first light source part, the second light source part and the third light source part are electrically connected in parallel and/or in series,
the control section controls the third light source section in such a manner that the control section regulates the entire spectrum by controlling the color temperature and the number of turns on of the third light source section.
Preferably, the plant growth illumination device with the optical signal based on the biological recognition further comprises a driving element and a heat dissipation element.
Preferably, the high visual safety plant growth illumination device can be used for facility agriculture or artificial climate chamber illumination incubators.
(technical Effect)
The invention can adjust the irradiation of red light and far-red light by the combination and control of the first light source part, the second light source part and the third light source part, thereby protecting the personnel working in the plant lighting environment; meanwhile, the white light can be used for supplementing green light and other components in the first light source part and the second light source part, so that the spectrum is further enriched, and an environment which is more favorable for plant growth is created.
Drawings
FIG. 1 is a block diagram of a plant growth illumination apparatus with optical signal based on biological recognition according to the present invention;
FIG. 2 is a schematic structural diagram of a plant growth illumination device with optical signals based on biological recognition according to the present invention;
FIG. 3 is a flow chart of a method of controlling a plant growth illumination apparatus with light signals based on biometric identification according to the present invention;
fig. 4 is a flowchart of a method for controlling a plant growth illumination apparatus with optical signals based on biometric identification according to the present invention.
Detailed Description
The technical solution of the present invention is further described below with reference to the following embodiments and the accompanying drawings.
Example 1
The embodiment provides a plant growth illumination device with optical signals based on biological recognition, which comprises a control part and a light emitting part, wherein the light emitting part comprises a first light source part, a second light source part and a third light source part, and the first light source part emits red light and blue light; the second light source part emits far-red light, the third light source part emits white light, the control part comprises a photosensitive sensor, a temperature sensor, an infrared biological recognition device, a voice biological recognition device and a controller, and the controller controls the first light source part, the second light source part and the third light source part respectively according to data detected by the photosensitive sensor, the temperature sensor, the infrared biological recognition device and the voice biological recognition device.
In this embodiment, the first light source unit, the second light source unit, and the third light source unit are electrically connected in parallel and/or in series, and the control unit controls the third light source unit in such a manner that the control unit controls the color temperature and the number of turns on of the third light source unit to adjust the entire spectrum.
The photosensitive sensor, the temperature sensor, the infrared biological recognition device, the ultrasonic biological recognition device, the voice biological recognition device, the iris biological recognition device and/or the face biological recognition device are/is connected to the controller through an AD converter, and the voice biological recognition device is directly connected to an IO port of the controller;
the controller judges whether an operator exists in the plant production facility according to the signal detected by the infrared biological recognition device and controls the first light source part, the second light source part and/or the third light source part to be turned on and/or turned off according to the judgment result;
the ultrasonic biological recognition device detects the position of an operator in real time and transmits the position information of the operator to the controller, and the controller controls the first light source part, the second light source part and/or the third light source part near the operator to be turned off according to the position information of the operator detected by the ultrasonic biological recognition device;
the voice biological recognition device is used for receiving the voice in the plant production facility and transmitting the voice signal detected by the voice biological recognition device to the controller, the controller judges whether an operator exists in the plant production facility according to the decibel value in the plant production facility, and controls the first light source part, the second light source part and/or the third light source part to be turned on and/or turned off according to the voice signal detected by the voice biological recognition device;
the iris biological recognition device detects iris information of human eyes and transmits acquired iris signals to the controller, and the controller controls the first light source part, the second light source part and/or the third light source part to be turned on and/or turned off according to the iris information of the human eyes detected by the iris biological recognition device;
the human face biological recognition device detects image information of operators in the plant production facility and transmits the acquired image information to the controller, and the controller controls the first light source part, the second light source part and/or the third light source part to be turned on and/or turned off according to the image information of the operators detected by the human face biological recognition device.
In this embodiment, the first light source unit and the second light source unit are arranged to meet the demand of the plant for light components during the growth process, and on the other hand, the first light source unit and the second light source unit are controlled to minimize the influence of red light and far-red light emitted by the first light source unit and the second light source unit on the human body.
In one implementation form, the first light source part comprises a solid light emitting chip and a coating layer arranged on the outer side of the solid light emitting chip, wherein the coating layer contains red fluorescent powder capable of absorbing exciting light emitted by the solid light emitting chip and converting the exciting light to emit red light, so that the solid light emitting chip is used for realizing the photosynthetic solid light emitting chip with the main wavelength of red light and blue light; preferably, the solid-state light-emitting chip can adopt a blue-light solid-state light-emitting chip, so that blue light and red light can be generated by the blue-light solid-state light-emitting chip with lower cost, and the expenditure of the solid-state light-emitting chip is saved.
The second light source part is a solid light-emitting chip and a coating layer arranged on the outer side of the solid light-emitting chip, and the coating layer contains far-red light fluorescent powder which can absorb exciting light emitted by the solid light-emitting chip and convert the exciting light to emit far-red light, so that the light source of the far-red light is realized through the solid light-emitting chip; or the solid light-emitting chip is a GaAs/GaAs, AlGaAs/GaAs or AlGaAs/AlGaAs base chip emitting far-red light.
The third light source part is a solid light emitting chip and a coating layer arranged on the outer side of the solid light emitting chip, and the coating layer contains yellow and/or green fluorescent powder which can absorb exciting light emitted by the solid light emitting chip and convert the exciting light into white light.
More preferably, the blue light component emitted by the first light source part has a light emission peak in a wavelength range of 400 to 490nm so as to correspond to a blue light domain absorption peak of chlorophyll; the wavelength of the red light component emitted by the first light source part is in the range of 600-700 nm, and the ratio of the light quantity sub-flow density R in the range of 600-700 nm emitted by the first light source part to the light quantity sub-flow density B in the range of 400-490 nm is 4-10; the ratio of the light flux density R in the range of 600nm to 700nm emitted by the first light source unit to the light flux density FR in the range of 700nm to 750nm emitted by the second light source unit is 3 to 8.
Taking planting of strawberries in a plant factory as an example, when the effective light quantum ratio of red light and blue light emitted by the first light source part, namely R/B, is within the range of 5: 1-10: 1, the single fruit quality and the fruit quality of the strawberries can be greatly improved, and according to experimental data, compared with conventional sunlight irradiation, the single fruit quality is improved by about 40% to the maximum extent; the soluble solid content of the mature strawberry fruit is increased by 15% to the maximum extent; the vitamin C content of the mature strawberry fruits is increased by 10 percent to the maximum extent; the soluble sugar content of the mature strawberry fruits is maximally improved by 4.5 percent.
The plant growth illumination device with optical signal based on biometrics authentication further includes a timer that sets a time period for causing the first light source unit, the second light source unit, and the third light source unit to perform an illumination operation, and during this time period, the control unit controls the first light source unit, the second light source unit, and the third light source unit to be turned on so that the plant can receive the illumination of light within a predetermined time period, and preferably, the timer is set to: the first light source part, the second light source part and/or the third light source part are/is irradiated at the accumulative irradiation illumination time of 10-16 h/day or according to the preset time, so that when the sunlight is sufficient in the daytime, the power supplies of the first light source part, the second light source part and the third light source part can be turned off, and the energy is saved.
As an implementation form, in this embodiment, the light quantity sub-flow density of the first light source section and the light quantity sub-flow density of the second light source section, and the illumination intensity of the third light source section may be adjusted by adjusting the PWM waveform and the duty ratio of the current; when the first light source section is determined, the light quantum ratio of red light and blue light thereof is fixed. The light quantum ratios of red light, blue light, and far-red light may be adjusted by adjusting the number of the first light source sections and the second light source sections; and the third light source parts with different numbers and color temperatures are added on the basis of the first light source part and the second light source part, so that the light irradiated to the plants comprises white light, and the spectral proportion of the illumination device suitable for plant growth can be more conveniently adjusted; and more preferably, the light quantity sub-flow density of the yellowish green light of the third light source section is not more than 30% of the total effective light quantity sub-flow density of the first light source section and the third light source section of the illumination device.
Preferably, the color temperature of the third light source part is 2000-10000K, for example, 3000K, 5000K and 7000K can be selected, the illumination intensity of the irradiated plant canopy is above 100lux, and the proportion of red light, blue light and far-red light of the plant growth illumination device in the whole effective light quantity sub-flow density is adjusted by selecting white solid-state light emitting sources of the third light source part with different color temperatures and quantities.
In this embodiment, in order to enable the control unit to more accurately control the first light source unit, the second light source unit, and the third light source unit, the photosensor is configured to detect intensity of external light and send detected external light intensity data to the controller, and the controller controls the second light source unit to be turned off when the intensity of the external light is greater than a preset threshold value.
The temperature sensor is used for detecting the internal temperature of the plant factory and sending the detected internal temperature data of the plant factory to the controller, and the controller reduces the emission power of the first light source part, the second light source part and/or the third light source part when the internal temperature of the plant factory is greater than a preset upper limit value; when the internal temperature of the plant factory is lower than a preset lower limit value, the emission power of the first light source part, the second light source part and/or the third light source part is increased.
Particularly, when a person enters a plant factory including the high-vision safety plant growth illumination device of the embodiment, the first light source part needs to be turned off at this time in consideration of the influence of blue light on the human body, so that the blue light in the plant factory is reduced to a reasonable level; therefore, the voice biological recognition device of the embodiment judges whether an operator exists in the plant factory according to the decibel value in the plant factory and outputs a switch signal to the controller; the controller controls the first light source part, the second light source part and/or the third light source part to be turned on and/or off according to a switching signal returned by the voice biological recognition device, namely, when an operator thinks that the operator is positioned in the plant factory, the controller turns off the first light source part, the second light source part and/or the third light source part, and when no operator is positioned in the plant factory, the controller turns on the first light source part, the second light source part and/or the third light source part or keeps the first light source part, the second light source part and/or the third light source part in an on state.
The infrared biological recognition device is used for detecting an infrared signal in the plant factory and sending the infrared signal detected by the infrared biological recognition device to the controller, the controller judges whether an operator exists in the plant factory according to the signal detected by the infrared biological recognition device, and when the operator exists, the controller controls the first light source part, the second light source part and/or the third light source part to be turned off; when the data detected by the infrared biological recognition device is judged by the controller that no operator is in the plant factory, the first light source part, the second light source part and/or the third light source part are/is turned on or kept in an on state.
The controller is connected to a control device through a GPIO interface, and the control device is connected to the first light source part, the second light source part and the third light source part.
Furthermore, in order to prevent the strong light from damaging the human body, such as human eyes, the human body sensing part further transmits a signal to the control part, and the control part adjusts the illumination intensity of the third light source part to be less than 1000lux (or between 200 lux and 800 lux).
The human body induction part adopts infrared induction, sound control induction or microwave induction to induce and identify whether the human body enters the illumination environment.
The plant growth illumination device with the optical signal based on the biological recognition further comprises a driving element and a heat dissipation element, wherein the driving element is used for driving the first light source part, the second light source part and the third light source part, and the heat dissipation element is used for dissipating heat of the first light source part, the second light source part and the third light source part.
Moreover, the high visual safety plant growth illumination device can be used for facility agriculture, artificial climate rooms or illumination incubators.
Example 2
The present embodiment provides a method for controlling a plant growth illumination apparatus with optical signal based on biometric identification, which can adopt the plant growth illumination apparatus with optical signal based on biometric identification disclosed in the embodiment, and includes:
setting the time and working period for starting illumination, and controlling the first light source part, the second light source part and the third light source part to be started by the control part after the illumination starting time is reached;
judging the irradiated plants, and determining illumination parameters according to the types of the irradiated plants;
the control part controls the first light source part, the second light source part and the third light source part to work according to the illumination parameters;
and judging whether the working time of the first light source part, the second light source part and the third light source part reaches the working time interval or not, and if the working time interval reaches, controlling the first light source part, the second light source part and the third light source part to be closed by the control part.
Furthermore, during the working periods of the first light source part, the second light source part and the third light source part, the human body sensing part senses whether a human body enters the illumination environment, the control part at least controls the first light source part and the second light source part to be closed after the human body enters the illumination environment, and the control part at least controls the first light source part and the second light source part to be opened after the human body enters the illumination environment and leaves from the illumination environment.
The sequence of the above embodiments is only for convenience of description and does not represent the advantages and disadvantages of the embodiments.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (19)
1. A plant growth illumination device with optical signals based on biological recognition is characterized in that,
comprises a control part and a light-emitting part, wherein,
the light emitting part comprises a first light source part and a second light source part, the first light source part emits red light and blue light, and the second light source part emits far-red light;
the control part comprises a controller, a photosensitive sensor, a temperature sensor, an infrared biological recognition device, an ultrasonic biological recognition device, a voice biological recognition device, an iris biological recognition device and/or a human face biological recognition device, and the controller controls the first light source part and the second light source part respectively according to data detected by the photosensitive sensor, the temperature sensor, the infrared biological recognition device, the ultrasonic biological recognition device, the voice biological recognition device, the iris biological recognition device and/or the human face biological recognition device.
2. The plant growth illumination apparatus with optical signal based on biological recognition according to claim 1,
the blue light component emitted by the first light source part has a light emitting peak within the wavelength range of 400-480 nm so as to correspond to the absorption peak of the blue light domain of chlorophyll,
the wavelength of the red light component emitted by the first light source part is in the range of 600-700 nm,
the ratio of the luminous flux density R in the range of 600nm to 700nm emitted by the first light source part to the luminous flux density B in the range of 400nm to 490nm is 4 to 10; the ratio of the light flux density R in the range of 600nm to 700nm emitted by the first light source unit to the light flux density FR in the range of 700nm to 750nm emitted by the second light source unit is 3 to 8.
3. The plant growth illumination apparatus with optical signal based on biological recognition according to claim 1,
the first light source part comprises a solid light-emitting chip and a coating layer arranged on the outer side of the solid light-emitting chip, wherein the coating layer contains red fluorescent powder capable of absorbing exciting light emitted by the solid light-emitting chip and converting the exciting light to emit red light, so that a light source with the main wavelength of red light and blue light is realized through the solid light-emitting chip;
the second light source part comprises a solid light-emitting chip and a coating layer arranged on the outer side of the solid light-emitting chip, and the coating layer contains far-red light fluorescent powder which can absorb exciting light emitted by the solid light-emitting chip and convert the exciting light to emit far-red light; or the solid light-emitting chip is a GaAs/GaAs, AlGaAs/GaAs or AlGaAs/AlGaAs base chip emitting far-red light.
4. The plant growth illumination apparatus with optical signal based on biological recognition according to claim 1,
the light source comprises a solid light emitting chip and a coating layer arranged on the outer side of the solid light emitting chip, wherein the coating layer contains yellow and/or green fluorescent powder which can absorb exciting light emitted by the solid light emitting chip and convert the exciting light into white light.
5. The plant growth illumination apparatus with optical signal based on biological recognition according to claim 4,
the illumination device further includes a timer that sets a time period for causing the first light source unit, the second light source unit, and the third light source unit to perform an illumination operation, and the control unit controls the first light source unit, the second light source unit, and the third light source unit according to the time period set by the timer, wherein the timer is set to: the first light source part, the second light source part and/or the third light source part are/is irradiated for 10-16h of accumulated radiation illumination intensity time.
6. The plant growth illumination apparatus with optical signal based on biological recognition according to claim 1,
the light flux density of the first light source section and the light flux density of the second light source section are adjusted by adjusting the PWM waveform and the duty ratio of the current.
7. The plant growth illumination apparatus with optical signal based on biological recognition according to claim 1,
the ratio of light quanta of the red light and the blue light of the first light source section is fixed;
adjusting the light quantum proportion of red light, blue light and far-red light by adjusting the proportion of the first light source part and the second light source part;
the spectral proportion of the illumination device suitable for plant growth is adjusted by changing the number and the color temperature of the third light source parts.
8. The plant growth illumination apparatus with optical signal based on biological recognition according to claim 5,
the light flux density of the yellow-green light of the third light source section is not more than 30% of the total effective light flux density of the first light source section and the second light source section of the illumination device.
9. The plant growth illumination apparatus with optical signal based on biological recognition according to claim 5,
the color temperature of the third light source part is 2000-10000K, and the illumination intensity of the radiated plant canopy is more than 100 lux;
and the proportion of red light, blue light and far-red light of the plant growth illumination device in the whole effective light quantity flux density is adjusted by selecting white light solid luminescent light sources of the third light source part with different color temperatures and quantities.
10. The plant growth illumination apparatus with optical signal based on biological recognition according to claim 5,
the photosensitive sensor is used for detecting the intensity of external light and sending the detected external light intensity data to the controller, and the controller controls the second light source part to be turned off when the intensity of the external light is greater than a preset threshold value.
11. The plant growth illumination apparatus with optical signal based on biological recognition as claimed in claim 10,
the temperature sensor is used for detecting the internal temperature of the plant factory and sending the detected internal temperature data of the plant factory to the controller, and the controller reduces the emission power of the first light source part, the second light source part and/or the third light source part when the internal temperature of the plant factory is greater than a preset upper limit value; when the internal temperature of the plant factory is lower than a preset lower limit value, the emission power of the first light source part, the second light source part and/or the third light source part is increased.
12. The plant growth illumination apparatus with optical signal based on biological recognition as claimed in claim 10,
the voice biological recognition device judges whether an operator exists in the plant factory according to the decibel value in the plant factory and outputs a switch signal to the controller; the controller controls the first light source part, the second light source part and/or the third light source part to be turned on and/or off according to a switching signal returned by the voice biological recognition device; the infrared biological recognition device is used for detecting an infrared signal in the plant factory and sending the infrared signal detected by the infrared biological recognition device to the controller, the controller judges whether an operator exists in the plant factory according to the signal detected by the infrared biological recognition device, and when the operator exists, the controller controls the first light source part, the second light source part and/or the third light source part to be turned off.
13. The plant growth illumination apparatus with optical signal based on biological recognition as claimed in claim 12,
the photosensitive sensor, the temperature sensor, the infrared biological recognition device, the ultrasonic biological recognition device, the voice biological recognition device, the iris biological recognition device and/or the face biological recognition device are/is connected to the controller through an AD converter, and the voice biological recognition device is directly connected to an IO port of the controller;
the controller judges whether an operator exists in the plant production facility according to the signal detected by the infrared biological recognition device and controls the first light source part, the second light source part and/or the third light source part to be turned on and/or turned off according to the judgment result;
the ultrasonic biological recognition device detects the position of an operator in real time and transmits the position information of the operator to the controller, and the controller controls the first light source part, the second light source part and/or the third light source part near the operator to be turned off according to the position information of the operator detected by the ultrasonic biological recognition device;
the voice biological recognition device is used for receiving the voice in the plant production facility and transmitting the voice signal detected by the voice biological recognition device to the controller, the controller judges whether an operator exists in the plant production facility according to the decibel value in the plant production facility, and controls the first light source part, the second light source part and/or the third light source part to be turned on and/or turned off according to the voice signal detected by the voice biological recognition device;
the iris biological recognition device detects iris information of human eyes and transmits acquired iris signals to the controller, and the controller controls the first light source part, the second light source part and/or the third light source part to be turned on and/or turned off according to the iris information of the human eyes detected by the iris biological recognition device;
the human face biological recognition device detects image information of operators in the plant production facility and transmits the acquired image information to the controller, and the controller controls the first light source part, the second light source part and/or the third light source part to be turned on and/or turned off according to the image information of the operators detected by the human face biological recognition device.
14. The plant growth illumination apparatus with optical signal based on biological recognition as claimed in claim 13,
the controller is connected to a control device through a GPIO interface, and the control device is connected to the first light source part, the second light source part and the third light source part.
15. The method for controlling a plant growth illumination apparatus with optical signal based on biological recognition as claimed in claim 1, comprising the steps of:
setting the time and working period for starting illumination, and controlling the first light source part, the second light source part and the third light source part to be started by the control part after the illumination starting time is reached;
judging the irradiated plants, and determining illumination parameters according to the types of the irradiated plants;
the control part controls the first light source part, the second light source part and the third light source part to work according to the illumination parameters;
and judging whether the working time of the first light source part, the second light source part and the third light source part reaches the working time interval or not, and if the working time interval reaches, controlling the first light source part, the second light source part and the third light source part to be closed by the control part.
16. The method for controlling a plant growth illumination apparatus with optical signal based on biological recognition as claimed in claim 15,
the human body sensing part senses whether a human body enters an illumination environment or not during the working periods of the first light source part, the second light source part and the third light source part, the control part at least controls the first light source part and the second light source part to be closed after the human body enters the illumination environment, and the control part at least controls the first light source part and the second light source part to be opened after the human body enters the illumination environment and leaves from the illumination environment.
17. A plant growth illumination device based on biological recognition and having optical signals is characterized by comprising a control part and a light emitting part, wherein,
the light emitting part includes a first light source part emitting red light and blue light, a second light source part emitting far-red light, and a third light source part emitting white light,
wherein the first light source part, the second light source part and the third light source part are electrically connected in parallel and/or in series,
the control section controls the third light source section in such a manner that the control section regulates the entire spectrum by controlling the color temperature and the number of turns on of the third light source section.
18. The biometric-based plant growth illumination device with optical signal as in claim 17, further comprising a driving element and a heat dissipating element.
19. The biometric-based plant growth illumination device with optical signal as claimed in claim 17, wherein the biometric-based plant growth illumination device with optical signal can be used in facility agriculture, phytotron or illumination incubator.
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