JPH02128624A - Plant growth auxiliary device using stroboscopic tube - Google Patents

Abstract

PURPOSE:To supply deficiency of sunlight in horticulture under structure by irradiating crops with intermittent flash from a stroboscopic tube group. CONSTITUTION:A great number of stroboscopic tubes irradiating in the whole direction and operating a trigger circuit 13 independently by a charging circuit to charge a large capacity condenser 2 through a multi-voltage rectifying circuit made by combining a condenser 3 with a diode 4 and a timing circuit set at 10-tens second intervals are evenly arranged. Photosyntheses of plants are helped by flash of the stroboscopic tube group.

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention provides basic photosynthesis conditions for the sequential growth of plants in greenhouse horticulture such as greenhouses. Of these, there is no way to compensate for sunlight (techniques from UC). Up until now, in greenhouse horticulture and other facilities, the practical technology to deal with the lack of sunlight is (11 - Excluding sunlight in connected vegetable factories, etc.) It is not the purpose of the present invention to perform photosynthesis using artificial light alone [the problem to be solved by the invention] It is not possible to provide the light energy necessary for photosynthesis to plants in currently cultivated greenhouses. This requires a large number of fluorescent lights, which requires attaching fluorescent lights to the ceiling of the greenhouse, which would not be able to utilize the sunlight on a normal day and would be cost-effective. The light source must be extremely small [Step F to solve the problem] The present invention was devised by taking advantage of the following two behaviors of plants during photosynthesis. This is due to the light effect, and the fact that even if the same light source is given in short bursts, the amount of photosynthesis will be significantly higher is the key point.In other words, even short light such as a flash of light is sufficient for photosynthesis to take place. One, and the other is that by exposing plants that are photosynthesizing at their best in weak sunlight to an intensely bright strobe flash, photosynthesis can be done even more effectively even in intermittent sunlight. For this reason, the flash energy should be set as strong and high as possible to ensure sufficient photosynthesis. Strobe discharge tubes should be installed in as many strobes as possible to ensure that the energy is evenly distributed to the plants. is small enough and the flash energy can be high enough, so even if it is installed inside a greenhouse, it will not block normal sunlight or interfere with daily work inside the greenhouse. 1°), and from a cost 1 perspective, strobe discharge tubes are advantageous and fully profitable.In the hot and humid environment inside the greenhouse, strobe flashes can be withstood well.II'(-), weak["
To compensate for this, it is thought that the best method would be to use a large number of strobe discharge tubes with as high energy as possible and arrange them evenly. Nikko) (COx)
The four conditions of (water) and (temperature) must be met.
Therefore, in the present invention, it is possible to obtain sufficient photosynthesis by repeatedly irradiating strobe light for an appropriate period of time without worrying about when the temperature of CO2 is sufficiently high indoors, water is supplied, and the water rises into the leaves. Since this cannot be done, it is natural that the effect will not be seen if there is no CO or the temperature is not suitable at that time, and it is also natural that the effect will not be seen when water does not rise sufficiently into the leaf. In addition, since the surface exposed to sunlight and the surface exposed to strobe flash are different, it seems possible that more sufficient photosynthesis may occur in some cases [Example] The common sense method is to supply a DC voltage boosted to 300 to 400 volts from a commercial power source to a two-core wire, and charge a large capacity capacitor through a resistor in each strobe discharge tube.
Is there any way to think of a way to have a trigger circuit to make the strobe discharge tube emit light at a timing of several tens of seconds? Since it is inside a hot and humid greenhouse, high voltage DC wiring of 300 to 400 volts is a safety issue. In the present invention, tIC is a 100 volt alternating current as shown in FIG. 5, FIG. Furthermore, in the embodiments shown in Figs. 5 and 7, the strobe discharge tubes emit flash light separately, and in the embodiments shown in Figs. The example shows a triple voltage rectifier circuit and a timing light emitting circuit, and the operation panel 23 includes an energization time timer.
The triple voltage rectifier circuit consists of two capacitors 3.6. By the action of the three diodes 4, 5, and 7, a triple voltage, that is, a charge of 420 volts, is stored in the large capacitor 2, and the timing circuit starts discharging when the voltage reaches 400 volts. Since the trigger 21 is turned on, the charge in the capacitor 12 is discharged all at once, and the trigger transformer 13 is activated, causing the strobe 1 to emit light. Therefore, the capacitor 3. 6. You only need to decide the size of 6. Also, if you install a variable resistor 22 in the charging circuit, you can create a finely tuned node.The figure shows three rows of indoor wiring, each with a synchronous line 12, but there is no short circuit. signal 1
6 is sent from the same timer, and when the light stops emitting light due to the failure of the 1-Robo discharge tube, if the input switch is turned off immediately after the flash when the operation is stopped, it will disappear if the short circuit signal 16 is turned on. If there is a faulty discharge tube in the row, the residual charge will cause the voltage to rise to 1 through the resistor 10.
．． 0-14-15-17-16 Current flows and lights up the light emitting diodes 14 and 17 to indicate which discharge tube in the column is faulty. The standard of the strobe discharge tube shown as an example is 500 por I~, so it is 4 times the pressure, or 4
1.40 volts is too high at 560 volts, so the timing is to change the diode after boosting to a 40 volt Zener diode 9 and secure 500 volts by using resistor 10.
The electric charge stored in the capacitor 12 is led to the operation panel 23 via a synchronization signal line, and is sent to the trigger transformer 13 at once by a short-circuit signal 16 to the (-) pole every 10 to several tens of seconds using a timing timer inside the operation panel.
In the figure, a 300 volt Zener diode 11 is connected in series with a resistor 10, which activates the trigger of strobe 1 through the ignition switch to cause all strobes to fire at the same time.This is because the rated voltage of 1 to rigger transformer 13 is 200 pol. The resistor 10 is set so that the charge on the trigger capacitor 12 does not exceed 200 volts, and the resistor 10 has a time constant of about 10 minutes between it and the large-capacity capacitor 2. The figure shows three rows of indoor wiring. Each strobe has a synchronizing signal line, but the short circuit signal 16 is sent from the same timer, and if the strobe discharge tube stops emitting light due to a failure, or if the manual switch is turned off immediately after the flash when the strobe discharge tube is out of operation, the short circuit signal 16 will be sent. If there is a faulty discharge tube in that row, the remaining charge will cause a current to flow in the order 10-14-15-17-1.6 through the resistor 10 and light-emitting diodes 14 and 17. By emitting light, it is possible to indicate which discharge tube in which column is faulty. Figure 7 shows that the commercial power supply is rectified using a transformer to create a direct current of less than 100 ports, and this is converted into an oscillating booster circuit. 25 to 300 to 900 volts and store it in the large capacity capacitor 2. The timing circuit is almost the same as the timing circuit wiring shown in Figs. It is even revolutionary that the intense flashes of strobe discharge tubes are sufficient to cope with the photosynthesis of plants and allow them to grow smoothly, without being affected by bad weather. It leads to planned production of good quality products throughout the year, and it is also a cost-effective method that is low compared to its effectiveness.

[Brief explanation of the drawing]

Figure 1 is a perspective view of a 5-row greenhouse, the installation whistle of the device of the present invention, Figure 2 is its cross section, and the layout of the strobe discharge tube. Figure 3 is the appearance of the strobe discharge tube of the present invention. Figure 4 is an example of its cross section. Figures 5 to 8 are detailed wiring or circuit diagrams of the embodiments. 1...Strobe discharge tube 2...Large capacity capacitor 3.68...Capacitor 4.5.7 .15. ・Diode 911... Zener diode 10... Resistor 12... Trigger capacitor 13...
Trigger transformer +4. 17. 18. 19 16. Synchronous relay 20...Discharge tube 21...Thyristor 22...Variable resistor 23...Operation panel 25...Oscillating boost circuit

Claims (1)

[Claims] 1. In greenhouse horticulture and other facilities, when sunlight conditions deteriorate due to rain and cloudiness, photosynthesis cannot be carried out sufficiently and growth slows down. Or a charging circuit that charges a large-capacity capacitor through a multi-voltage rectifier circuit that combines a capacitor and a diode, and a charging circuit that charges a large-capacity capacitor through an AC commercial power line stretched between
A large number of strobe discharge tubes are connected at appropriate intervals to emit light in all directions by independently activating a trigger circuit using a timing circuit set at intervals of seconds to repeatedly flash light.
Plant growth auxiliary device 2 that repeatedly irradiates crops with strong intermittent flash light continuously within a certain period of time to ensure sufficient photosynthesis and smooth growth. When the temperature deteriorates, photosynthesis cannot be carried out adequately and growth slows down, so in addition to weak sunlight, three-core electric wires consisting of a commercial AC power line and a synchronization signal line are stretched above or between the crops. A charging circuit that charges through a multiplier rectifier circuit that combines a capacitor and a diode.
A large number of random omnidirectional strobe discharge tubes are equipped with a trigger circuit that emits a flash when triggered by a signal sent from the timing control panel of the power supply section, which can be freely selected at intervals of 0 to several tens of seconds. A plant that is connected at intervals and continuously irradiates the crops with powerful intermittent flashes of light for a certain period of time, all strobes being synchronized at the same time, so that the crops can carry out sufficient photosynthesis and achieve smooth growth. Growth Auxiliary Device 3 In greenhouse horticulture and other greenhouses, if sunlight conditions deteriorate due to rain or cloudy weather, photosynthesis cannot be carried out sufficiently and growth slows down. A charging circuit that charges a large-capacity capacitor through a well-known oscillation step-up circuit that flows DC voltage of 100 volts or less that has been rectified by a commercial power source through a two-core electric wire, and a timing circuit that is set at intervals of 10 to several tens of seconds. Therefore, a large number of strobe discharge tubes that emit flashes in all directions by operating their own trigger circuits are connected at appropriate intervals, and they are used to repeatedly irradiate crops with powerful intermittent flashes for a certain period of time. A plant growth auxiliary device that allows sufficient photosynthesis to occur and achieves smooth growth 4 In greenhouse horticulture and other facilities, when sunlight conditions deteriorate due to rain or cloudy weather, photosynthesis cannot be carried out sufficiently and growth is slowed. Therefore, in addition to weak sunlight, secure a signal line that carries a 100 volt or less DC voltage rectified by a commercial power source and a synchronous signal on a 3-core electric wire stretched above or between the crops. a charging circuit that charges a large capacity capacitor with the direct current through a well-known oscillating booster circuit;
-A large number of omnidirectional strobe discharge tubes with trigger circuits that emit flashes when triggered by signals sent from the power supply timing control panel on the synchronization signal line, which can be freely selected at intervals of several tens of seconds. A plant that is connected with strobe tubes and continuously irradiates the crops with strong intermittent flash light for a certain period of time in synchronization with all strobe tubes, so that the crops can carry out sufficient photosynthesis and achieve smooth growth. Growth aid device