CN202111898U - Control system for light compensating lamp for plant - Google Patents
Control system for light compensating lamp for plant Download PDFInfo
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- CN202111898U CN202111898U CN2011201245578U CN201120124557U CN202111898U CN 202111898 U CN202111898 U CN 202111898U CN 2011201245578 U CN2011201245578 U CN 2011201245578U CN 201120124557 U CN201120124557 U CN 201120124557U CN 202111898 U CN202111898 U CN 202111898U
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- pulse width
- phase shifting
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Abstract
The utility model provides a control system for a light compensating lamp for a plant. The control system can be used for automatically controlling illumination intensity so as to ensure the illumination intensity of the plant to be in an optimal range, thereby promoting the growth of the plant and saving energy. The control system comprises a DC (Direct Current) voltage stabilizing power supply, a drive control unit and the light compensating lamp, wherein the drive control unit comprises a full-bridge phase shifting circuit, a control module, a pulse width modulating module and a light intensity sensor, the full-bridge phase shifting circuit consists of four field effect tubes, the pulse width modulating module and the light intensity sensor are connected with the control module, an output end of the pulse width modulating module is connected with a control end of the full-bridge phase shifting circuit, the output end of the full-bridge phase shifting circuit is connected with the light compensating lamp through a coupling coil, and the DC voltage stabilizing power supply is connected with power supply ends of the control module, an analog-to-digital conversion module and the pulse width modulating module respectively. The control module acquires the present illuminating condition by the light intensity sensor and controls the output voltage of the full-bridge phase shifting circuit by the pulse width modulating module so as to adjust the luminance of the light compensating lamp and enable the illumination of the plant to meet requirements.
Description
Technical field
The utility model belongs to field of plant tissue culture technique, specially refers to the control system of a kind of plant light filling lamp.
Background technology
Plant utilize inorganic matter to produce organic substance and storing energy, so illumination condition is very important growth key element for plant through photosynthesis.Show through research, utilize the artificial light sources of specific wavelength that plant is shone, can promote the growth of plant.Based on above-mentioned theory, people have invented various plants light filling lamp, but the lamp of most plants group training now all is formula kept burning day and night or relies on manually operated; Above-mentioned dual mode all is difficult to control according to the illumination condition of reality the work of light filling lamp, and the illumination condition that promptly uncontrollable plant is actual occurs illumination easily and crosses situation strong or that illumination is not enough; If illumination is strong excessively, when surpassing the light saturation point of plant, plant stomata is closed; Influence transpiration, influence the absorption of root to water, plant hydropenia influences the activity of enzyme; Suppress photosynthetic process, but also can cause energy waste; And illumination is not enough, when being lower than the light compensation point of plant, can influence photosynthesis of plants equally.In addition, the light filling lantern festival of formula kept burning day and night causes the serious waste of the energy.
The utility model content
The purpose of the utility model is to propose a kind of control system that can control the plant light filling lamp of intensity of illumination automatically, so that the intensity of illumination of plant is in optimum range, promotes the growth of plant, saves the energy simultaneously.
The control system of the plant light filling lamp of the utility model comprises D.C. regulated power supply, driving control unit and light filling lamp; Key is pulse width modulation module, the light intensity sensor that said driving control unit comprises the full-bridge phase shifting circuit of being made up of four FETs, a control module and links to each other with control module; The output of said pulse width modulation module links to each other with said full-bridge phase shifting circuit control end; The output of full-bridge phase shifting circuit links to each other with the light filling lamp through coupling coil, and said D.C. regulated power supply links to each other with the power end of control module, analog-to-digital conversion module, pulse width modulation module respectively.
Control module utilizes light intensity sensor to know current light conditions, and controls pulse width modulation module to full-bridge phase shifting circuit output pwm control signal, thereby the output voltage of control full-bridge phase shifting circuit is regulated the brightness of light filling lamp, and the illumination of plant is met the requirements.
Further, said driving control unit also comprises the gateway module that links to each other with control module, to the user automatic control and two kinds of control modes of Artificial Control is provided, and makes control more flexible.Specifically, said gateway module comprises at least one interface in TCP/IP or DMX512 or the 802.11b/g interface.
Further; Said light filling lamp is preferably LED (Light-Emitting-Diode; The Chinese meaning is light-emitting diode), LED is a kind of semiconductor that can electric energy be converted into visible light, it has changed the luminous and luminous principle of electricity-saving lamp tricolor powder of incandescent lamp tungsten filament; And the employing electroluminescence has light efficiency height, radiationless and low in power consumption.
The control system of the plant light filling lamp of the utility model is simple in structure, cost is low, can come automatically or the work of Artificial Control light filling lamp according to actual light conditions, makes the intensity of illumination of plant be in optimum range, promotes the growth of plant, saves the energy simultaneously.
Description of drawings
Fig. 1 is the schematic diagram of control system of the plant light filling lamp of the utility model.
Embodiment
Specify the utility model below in conjunction with specific embodiment and accompanying drawing.
Embodiment 1:
As shown in Figure 1; The control system of the plant light filling lamp of present embodiment comprises D.C. regulated power supply, driving control unit and LED light filling lamp; Pulse width modulation module, light intensity sensor and gateway module that said driving control unit comprises the full-bridge phase shifting circuit of being made up of four FET Q1, Q2, Q3, Q4, a control module and links to each other with control module; The output of said pulse width modulation module links to each other with said full-bridge phase shifting circuit control end; The output of full-bridge phase shifting circuit links to each other with LED light filling lamp (LED1, LED2, LED3) through coupling coil L1; LED light filling lamp is also parallelly connected with filter capacitor C1, and said D.C. regulated power supply links to each other with the power end of control module, analog-to-digital conversion module, pulse width modulation module respectively.
Above-mentioned control module, pulse width modulation module and gateway module are integrated in the TMS320F28035 chip of TI company, can be realized the generation of control and pwm signal by software, thereby simplify hardware components greatly, and improve reliability.
Control module utilizes light intensity sensor to know current light conditions; And the control pulse width modulation module is to full-bridge phase shifting circuit output pwm control signal (PWM1～PWM4); The ON time of each FET in the control full-bridge phase shifting circuit; Thereby the output voltage of control full-bridge phase shifting circuit is regulated the brightness of light filling lamp, and the illumination of plant is met the requirements.
Full-bridge phase shifting circuit control principle has been a known technology, repeats no more here.
Claims (4)
1. the control system of a kind of plant light filling lamp; Comprise D.C. regulated power supply, driving control unit and light filling lamp; It is characterized in that pulse width modulation module, light intensity sensor that said driving control unit comprises the full-bridge phase shifting circuit of being made up of four FETs, a control module and links to each other with control module; The output of said pulse width modulation module links to each other with said full-bridge phase shifting circuit control end; The output of full-bridge phase shifting circuit links to each other with the light filling lamp through coupling coil, and said D.C. regulated power supply links to each other with the power end of control module, analog-to-digital conversion module, pulse width modulation module respectively.
2. the control system of plant light filling lamp according to claim 1 is characterized in that said driving control unit also comprises the gateway module that links to each other with control module.
3. the control system of plant light filling lamp according to claim 2 is characterized in that said gateway module comprises at least one interface in TCP/IP or DMX512 or the 802.11b/g interface.
4. according to the control system of claim 1 or 2 or 3 described plant light filling lamps, it is characterized in that said light filling lamp is LED.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201245578U CN202111898U (en) | 2011-04-22 | 2011-04-22 | Control system for light compensating lamp for plant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201245578U CN202111898U (en) | 2011-04-22 | 2011-04-22 | Control system for light compensating lamp for plant |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202111898U true CN202111898U (en) | 2012-01-11 |
Family
ID=45437347
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201245578U Expired - Lifetime CN202111898U (en) | 2011-04-22 | 2011-04-22 | Control system for light compensating lamp for plant |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202111898U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103535219A (en) * | 2013-10-17 | 2014-01-29 | 安徽工程大学 | Solar energy based agricultural greenhouse light supplementing system |
-
2011
- 2011-04-22 CN CN2011201245578U patent/CN202111898U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103535219A (en) * | 2013-10-17 | 2014-01-29 | 安徽工程大学 | Solar energy based agricultural greenhouse light supplementing system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120111 |
|
| CX01 | Expiry of patent term |