CN101854761A - A configurable plant growth LED light source control system - Google Patents

Abstract

The invention discloses an LED light source control system for growth of configuration plants. In the prior art, no light control system of an LED light is directly used for plant growth, particularly tissue culture of orchidaceae plants. The invention adopts a technical scheme that: the LED light source control system for the growth of the configuration plants is characterized by consisting of a control bottom plate, a plurality of control basal plates and a plurality of LED light plates, wherein the LED light plate is provided with an LED light; and the control bottom plate comprises a micro processor and a plurality of power sockets, the micro processor is connected with a computer by a serial port connecting wire, a parameter setting module is arranged in the computer, and the control basal plates are arranged on the power sockets. The system of the invention has the advantages of effectively improving growth amount and effective ingredients of the plants, solving the problems of high energy consumption, long cycle and the like existing in the propagation of the orchidaceae plants and greatly shortening the breeding cycle of seedlings.

Description

Translated fromChinese

一种组态化植物生长LED光源控制系统A configurable plant growth LED light source control system

技术领域technical field

本发明涉及光源控制系统，特别是一种用于组态化植物生长用的LED光源控制系统。The invention relates to a light source control system, in particular to an LED light source control system for configurable plant growth.

背景技术Background technique

植物的光合作用是地球上一切生命的基础，光合作用需要光，但是光对植物的影响除了提供光合作用所需之外，还包括光谱、光周期的调节。The photosynthesis of plants is the basis of all life on earth. Photosynthesis requires light, but the impact of light on plants not only provides the needs of photosynthesis, but also includes the adjustment of spectrum and photoperiod.

植物的生长发育需要的光照主常依赖太阳光，但蔬菜、花卉、药用植物等其他经济作物的工厂化生产、组织培养等还需进行人工光源补充光照。特别考虑到晚秋、冬、春等季节的光照时间相对较短，温室大棚内严重缺光，作物不能正常生长，如连遇阴天、雾天、雨雪天，作物生长受到的影响会更严重。因此，采用人工光源在棚室内直接给作物补光是促进植物生长的有效途径，而高效节能地对植物补光的理论依据主要是植物对光的选择性吸收的理论。近年来，人们一直在努力模拟植物的吸收光谱，以求研制出某种光源，使其发射光谱最大限度地接近植物的吸收光谱以产生共振吸收，促使光合作用高效地进行。The light needed for the growth and development of plants often depends on sunlight, but the factory production and tissue culture of vegetables, flowers, medicinal plants and other economic crops also need artificial light sources to supplement light. Especially considering that the light time in late autumn, winter, spring and other seasons is relatively short, the greenhouse is seriously short of light, and the crops cannot grow normally. If it is cloudy, foggy, rainy and snowy, the impact on crop growth will be more serious . Therefore, using artificial light sources to directly supplement light to crops in the greenhouse is an effective way to promote plant growth, and the theoretical basis for supplementing light to plants with high efficiency and energy saving is mainly the theory of selective absorption of light by plants. In recent years, people have been trying to simulate the absorption spectrum of plants, in order to develop a certain light source, so that the emission spectrum can be as close as possible to the absorption spectrum of plants to produce resonance absorption and promote efficient photosynthesis.

目前，国内植物组织培养主要采用的人工光源是白炽灯、日光灯、钠灯、高压汞灯等，但这些人工光源的发射光谱不能很好地满足植物生长对光的选择性需求，补光效率低，灯管的寿命与发光效率均不够理想，灯管发热量大还需另外耗电来移除，以致整体耗电成本颇高。国外和台湾利用LED光源的初步研究已证实利用LED光源作为温室人工光源能够有效的提高植物的生长量和品质。与传统的人工光源相比，LED具有可调整光强、光谱、冷却负荷低、电光转换效率高、体积小、寿命长、使用直流电及可设定特定波长、波长固定等特点，且不含有害气体，环保性能佳，对于植物的组培是一种非常适合的人工光源系统。At present, the artificial light sources mainly used in domestic plant tissue culture are incandescent lamps, fluorescent lamps, sodium lamps, high-pressure mercury lamps, etc., but the emission spectrum of these artificial light sources cannot well meet the selective demand for light for plant growth, and the light supplement efficiency is low. The lifespan and luminous efficiency of the lamp are not ideal, and the lamp generates a lot of heat and requires additional power consumption to remove it, resulting in a high overall power consumption cost. Preliminary studies on the use of LED light sources in foreign countries and Taiwan have confirmed that using LED light sources as artificial light sources in greenhouses can effectively improve the growth and quality of plants. Compared with traditional artificial light sources, LEDs have the characteristics of adjustable light intensity, light spectrum, low cooling load, high electro-optic conversion efficiency, small size, long life, use of direct current, specific wavelength can be set, fixed wavelength, etc., and do not contain harmful Gas, good environmental protection performance, it is a very suitable artificial light source system for plant tissue culture.

现有技术中还没有直接应用到植物生长，尤其是兰科植物组培的LED灯具的光源控制系统。In the prior art, there is no light source control system directly applied to plant growth, especially LED lamps for orchid plant tissue culture.

发明内容Contents of the invention

本发明针对现有植物生长过程中采用传统人工光源存在的高能耗、高成本、长培育周期等不足，提供一种用于组态化植物生长的LED光源控制系统，有效地提高植物生长的生长量与有效成分，以解决兰科植物繁育中出现的高能耗、周期长等问题，极大缩短种苗培育周期。The present invention aims at the disadvantages of high energy consumption, high cost, and long cultivation period of traditional artificial light sources in the existing plant growth process, and provides an LED light source control system for configurable plant growth, which can effectively improve the growth of plant growth. Quantity and effective ingredients to solve the problems of high energy consumption and long cycle in the breeding of orchid plants, and greatly shorten the seedling cultivation cycle.

为此，本发明采用以下的技术方案：一种组态化植物生长LED光源控制系统，其特征在于它包括控制底板、多个控制基板和多块LED灯板三部分组成，LED灯板上装有LED灯，控制底板包括一微处理器和多个电源插座，微处理器通过串口连接线与一计算机连接，在计算机内装一参数设置模块。控制基板安装在电源插座上，LED灯板通过电源控制线与控制基板的驱动电路连接，控制基板的个数根据LED灯板数量和LED灯种类组态来配置。微处理器用于完成参数设置模块的执行与计算机的数据通讯，通过微处理器和参数设置模块就能实现对LED灯板中灯的智能控制，可实现纯光灯板的光强与光周期控制，也可实现混光灯板的光强、光比例与光周期控制。For this reason, the present invention adopts the following technical solutions: a configurable plant growth LED light source control system, which is characterized in that it consists of three parts: a control base plate, a plurality of control base plates and a plurality of LED lamp boards, and the LED lamp board is equipped with The LED lamp, the control bottom board includes a microprocessor and a plurality of power sockets, the microprocessor is connected with a computer through a serial port connection line, and a parameter setting module is installed in the computer. The control board is installed on the power socket, and the LED light board is connected to the driving circuit of the control board through the power control line. The number of control boards is configured according to the number of LED light boards and the configuration of the LED light types. The microprocessor is used to complete the execution of the parameter setting module and the data communication with the computer. Through the microprocessor and the parameter setting module, the intelligent control of the lights in the LED light panel can be realized, and the light intensity and photoperiod control of the pure light panel can be realized. , can also realize the light intensity, light ratio and photoperiod control of the mixed light panel.

作为对上述技术方案的进一步完善和补充，本发明采取以下技术措施：As a further improvement and supplement to the above-mentioned technical solution, the present invention takes the following technical measures:

所述的微处理器包括微处理单元和与所述的微处理单元(MCU)连接的时钟单元(RTC)和串口通信接口单元(UART)，主要完成参数设置模块的执行与计算机的数据通讯，用于与计算机通信进行接收、发送相关数据，用于时间、周期的设定等。Described microprocessor comprises microprocessing unit and the clock unit (RTC) that is connected with described microprocessing unit (MCU) and serial port communication interface unit (UART), mainly finishes the execution of parameter setting module and the data communication of computer, It is used to communicate with the computer to receive and send relevant data, and to set time and cycle, etc.

所述的LED灯板由纯光LED灯板或/和红蓝混光LED灯板组成，由2个控制基板控制1块纯光LED灯板，由5个控制基板控制1块红蓝混光LED灯板，纯光LED灯板上装有纯光LED灯，红蓝混光LED灯板上装有红光和蓝光LED灯。使用红光与蓝光高亮度发光二极管(LED)能建立可调整光量、光谱、给光频率与工作比的人工光源，可视需要提供连续无闪烁的光或高频闪烁的光。The LED light board is composed of pure light LED light board or/and red and blue mixed light LED light board, one pure light LED light board is controlled by two control boards, and one red and blue mixed light board is controlled by five control boards LED light board, the pure light LED light board is equipped with pure light LED lights, and the red and blue mixed light LED light board is equipped with red light and blue light LED lights. The use of red and blue high-brightness light-emitting diodes (LEDs) can establish an artificial light source with adjustable light quantity, spectrum, light frequency and working ratio, and can provide continuous non-flickering light or high-frequency flickering light as required.

控制底板的电源插座向控制基板提供220V交流电，控制基板将220V的交流电转换成12V、1A的低压直流电源，再通过其输出端向LED灯板内的LED灯供电。The power socket of the control board provides 220V AC power to the control board, and the control board converts the 220V AC power into a 12V, 1A low-voltage DC power supply, and then supplies power to the LED lamps in the LED lamp board through its output terminal.

针对某一种植物在不同生长阶段对不同光质的需求，设置不同的生长曲线调节参数，将参数存储到计算机的内部存储器E²PROM中，红、蓝光比例根据生长曲线调节参数通过参数设置模块自动调整。According to the needs of a certain plant for different light quality in different growth stages, set different growth curve adjustment parameters, store the parameters in the internal memory E² PROM of the computer, and adjust the parameters according to the growth curve by the ratio of red and blue light through the parameter setting module auto-adjust.

本发明具有以下有益效果：从发光效率、光的利用率以及光的可调控性上，本发明都比传统人工光源具有更好的性能特点；有效地提高植物生长的生长量与有效成分，解决了兰科植物繁育中出现的高能耗、周期长等问题，极大的缩短了种苗培育周期。The present invention has the following beneficial effects: in terms of luminous efficiency, light utilization rate and light controllability, the present invention has better performance characteristics than traditional artificial light sources; effectively improves the growth of plants and the effective components, and solves the problem of It solves the problems of high energy consumption and long cycle in the breeding of orchid plants, and greatly shortens the seedling cultivation cycle.

下面结合说明书附图和具体实施方式对本发明作进一步说明。The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

附图说明Description of drawings

图1是本发明的原理示意图。Fig. 1 is a schematic diagram of the principle of the present invention.

图2是本发明控制底板的原理示意图。Fig. 2 is a schematic diagram of the principle of the control floor of the present invention.

图3是本发明控制基板的电路原理图。Fig. 3 is a schematic circuit diagram of the control substrate of the present invention.

图4是本发明MCU主控芯片的电路原理图。Fig. 4 is a schematic circuit diagram of the MCU main control chip of the present invention.

图5是本发明UART的电路原理图。Fig. 5 is a schematic circuit diagram of the UART of the present invention.

图6是本发明RTC的电路原理图。Fig. 6 is a schematic circuit diagram of the RTC of the present invention.

具体实施方式Detailed ways

如图所示的组态化植物生长LED光源控制系统，控制底板包括两个部分：一是微处理器，包括MCU(微处理单元)、与MCU连接的RTC(时钟单元)和UART(串口通信接口单元)，主要完成参数设置模块的执行与计算机的数据通讯，用于与计算机通信进行接收、发送相关数据，时间、周期的设定等工作；二是共用交流电源的电源插座，每个电源插座上安装一个控制基板。微处理器通过串口连接线与计算机连接，计算机内装有参数设置模块，LED灯板通过电源控制线与控制基板的驱动电路连接，控制基板的个数根据LED灯板数量和LED灯种类组态来配置。LED灯板由纯光LED灯板或/和红蓝混光LED灯板组成，由2个控制基板控制1块纯光LED灯板，由5个控制基板控制1块红蓝混光LED灯板。针对某一种植物在不同生长阶段对不同光质的需求，设置不同的生长曲线调节参数，将参数存储到计算机内部的E²PROM，红、蓝光比例根据生长曲线通过参数设置模块自动调整。As shown in the figure, the configurable plant growth LED light source control system, the control backplane includes two parts: one is the microprocessor, including the MCU (microprocessing unit), the RTC (clock unit) connected with the MCU and the UART (serial port communication interface unit), which mainly completes the execution of the parameter setting module and the data communication with the computer, and is used to communicate with the computer to receive and send relevant data, time, cycle setting, etc.; the second is to share the AC power socket, each power supply A control board is mounted on the socket. The microprocessor is connected to the computer through a serial port connection line. The computer is equipped with a parameter setting module. The LED light board is connected to the drive circuit of the control board through the power control line. The number of control boards depends on the number of LED light boards and the configuration of LED light types. configure. The LED light board is composed of pure light LED light board or/and red and blue mixed light LED light board, 1 pure light LED light board is controlled by 2 control boards, and 1 red and blue mixed light LED light board is controlled by 5 control boards . According to the different light quality requirements of a certain plant in different growth stages, set different growth curve adjustment parameters, store the parameters in the E² PROM inside the computer, and automatically adjust the ratio of red and blue light according to the growth curve through the parameter setting module.

控制底板的电源插座向控制基板提供220V交流电，控制基板2将220V的交流电进行电压转换成12V、1A的低压直流电源，再通过12V、1A低压电输出端向LED灯板3上的LED灯提供正常的工作电压。The power socket of the control base board provides 220V AC power to the control base board, and thecontrol base board 2 converts the 220V AC power into a 12V, 1A low-voltage DC power supply, and then supplies power to the LED lights on theLED lamp board 3 through the 12V, 1A low-voltage output terminal. Normal working voltage.

如图4所示，MCU(微处理单元)是由AVR系列的MEGA8L做主控芯片(即单片机)，通过18路I/O口线分别驱动MOS管来驱动LED灯板，通过对MCU的MEGA8L芯片进行编程可实现I/O口的高低电平来控制低压电源的开关，能对纯光板和混光板进行灯光比例调整，或通过PWM输出调节占空比，实现对灯板光强的调节，在I/O口的数量上只能控制最多9组纯光板或3组混光板。As shown in Figure 4, the MCU (microprocessing unit) is the main control chip (that is, single-chip microcomputer) of the AVR series MEGA8L, which drives the MOS tubes to drive the LED light board through 18 I/O lines, and the MEGA8L of the MCU The chip can be programmed to realize the high and low levels of the I/O port to control the switch of the low-voltage power supply. It can adjust the light ratio of the pure light board and the mixed light board, or adjust the duty cycle through the PWM output to realize the adjustment of the light intensity of the light board. In terms of the number of I/O ports, it can only control up to 9 groups of pure light boards or 3 groups of light mixing boards.

如图5所示，串口通信接口单元由MAX232芯片与标准串口接口与计算机机相互通信。As shown in Figure 5, the serial port communication interface unit is composed of MAX232 chip and standard serial port interface to communicate with the computer.

如图6所示，RTC(时钟单元)与光周期的设定是由RTC时钟芯片PCF8563以及相关元件完成，本电路还设有后备电源，为了在断电的时候不会发生时间丢失问题。As shown in Figure 6, the RTC (clock unit) and photoperiod settings are completed by the RTC clock chip PCF8563 and related components. This circuit is also equipped with a backup power supply to avoid time loss when the power is turned off.

如图3所示的控制基板的电路原理图，控制基板的主要功能是接受单片机控制，输出一个恒流恒压的LED灯板驱动电源。控制基板的工作原理如下：驱动电路是由MOSFET、二极管等构成，脉冲宽度调制(PWM)控制，当接入启动电源后由R4给开关管Q3提供启动电流，使Q3开始导通，电路开始工作，后级输出AC 12V电压再经过肖特基二极管SR560与C1电解电容进行整流滤波后输出直流DC 12V恒流恒压电源。当MCU的I/O控制口控制三极管Q2导通时，开关管Q1同时也导通，二极管D4截止，输人的整流电压经Q1和L向C充电，这一电流使电感L中的储能增加。当MCU的I/O控制口控制三极管Q2截止时，开关管Q1也截止，电感L感应出左负右正的电压，经负载LED灯板和续流二极管Q1释放电感L中存储的能量，从而维持输出直流12V LED灯板电压不变。As shown in Figure 3, the circuit schematic diagram of the control substrate, the main function of the control substrate is to accept the control of the single-chip microcomputer, and output a constant current and constant voltage LED lamp board driving power. The working principle of the control substrate is as follows: the driving circuit is composed of MOSFETs, diodes, etc., and is controlled by pulse width modulation (PWM). When the starting power is connected, R4 provides the starting current to the switching tube Q3, so that Q3 starts to conduct and the circuit starts to work. , the rear stage outputs AC 12V voltage and then rectifies and filters it through Schottky diode SR560 and C1 electrolytic capacitor to output DC 12V constant current and constant voltage power supply. When the I/O control port of the MCU controls the transistor Q2 to be turned on, the switch tube Q1 is also turned on at the same time, the diode D4 is turned off, and the input rectified voltage is charged to C through Q1 and L. This current makes the energy stored in the inductor L Increase. When the I/O control port of the MCU controls the transistor Q2 to be turned off, the switch tube Q1 is also turned off, and the inductor L induces a left-negative and right-positive voltage, and the energy stored in the inductor L is released through the load LED lamp board and the freewheeling diode Q1, thereby Keep the output DC 12V LED lamp board voltage unchanged.

LED灯板包括两种：一种是纯色LED灯板，LED颜色可任选白光、红光、蓝光、绿光、黄光等纯色光；另一种是混光LED灯板，主要是由红光与蓝光根据实际需要按比例组成。在LED灯板上，不同波长和不同数量的LED灯能够任意配搭组合形成光源，具有相应的光密度和复合的光波长，根据实际需要设置LED灯板中灯。There are two kinds of LED light boards: one is pure color LED light board, and the LED color can be selected from white light, red light, blue light, green light, yellow light and other pure color light; the other is mixed light LED light board, which is mainly composed of red light Light and blue light are composed in proportion according to actual needs. On the LED light board, LED lights with different wavelengths and different quantities can be combined arbitrarily to form a light source, with corresponding optical density and composite light wavelength, and the lights in the LED light board can be set according to actual needs.

Claims (5)

Translated fromChinese

1.一种组态化植物生长LED光源控制系统，其特征在于它包括控制底板、多个控制基板和多块LED灯板，LED灯板上装有LED灯，控制底板包括一微处理器和多个电源插座，微处理器通过串口连接线与一计算机连接，在计算机内装一参数设置模块，控制基板安装在电源插座上，LED灯板通过电源控制线与控制基板的驱动电路连接，控制基板的个数根据LED灯板数量和LED灯种类组态来配置。1. A configurable plant growth LED light source control system is characterized in that it comprises a control base plate, a plurality of control base plates and a plurality of LED lamp panels, LED lamp panels are equipped with LED lamps, and the control base plate comprises a microprocessor and multiple LED lamp panels. A power socket, the microprocessor is connected to a computer through a serial port connection line, a parameter setting module is installed in the computer, the control substrate is installed on the power socket, the LED light board is connected to the drive circuit of the control substrate through the power control line, and the control substrate is connected to the drive circuit of the control substrate. The number is configured according to the number of LED light boards and the configuration of LED light types.2.根据权利要求1所述的组态化植物生长LED光源控制系统，其特征在于所述的微处理器包括微处理单元和与所述的微处理单元连接的时钟单元和串口通信接口单元。2. The configurable plant growth LED light source control system according to claim 1, characterized in that said microprocessor includes a micro-processing unit, a clock unit and a serial communication interface unit connected to said micro-processing unit.3.根据权利要求1或2所述的组态化植物生长LED光源控制系统，其特征在于所述的LED灯板由纯光LED灯板或/和红蓝混光LED灯板组成，由2个控制基板控制1块纯光LED灯板，由5个控制基板控制1块红蓝混光LED灯板。3. The configurable plant growth LED light source control system according to claim 1 or 2, characterized in that the LED light board is composed of pure light LED light board or/and red and blue mixed light LED light board, consisting of 2 One control board controls one pure light LED light board, and five control boards control one red and blue mixed light LED light board.4.根据权利要求3所述的组态化植物生长LED光源控制系统，其特征在于控制底板的电源插座向控制基板提供220V交流电，控制基板将220V的交流电转换成12V、1A的低压直流电源，再通过输出端向LED灯板供电。4. The configurable plant growth LED light source control system according to claim 3, characterized in that the power socket of the control base provides 220V AC power to the control base, and the control base converts the 220V AC into a 12V, 1A low-voltage DC power supply, Then supply power to the LED light board through the output terminal.5.根据权利要求3所述的组态化植物生长LED光源控制系统，其特征在于根据植物在不同生长阶段对不同光质的需求，设置不同的生长曲线调节参数，将参数存储到计算机内部的E²PROM，红、蓝光比例根据生长曲线通过参数设置模块自动调整。5. The configurable plant growth LED light source control system according to claim 3, characterized in that according to the needs of plants for different light qualities in different growth stages, different growth curve adjustment parameters are set, and the parameters are stored in the computer. E² PROM, the ratio of red and blue light is automatically adjusted through the parameter setting module according to the growth curve.

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