JPH09121699A - Watering - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a watering method, capable of surely watering to plants when required, controlling clay ground to water content state of soil which is suitable for each sport and ensuring ground quality suitable for object sport. SOLUTION: Plural soil water content sensors 1 capable of measuring soil water content amount in a definite range are installed in the soil and these soil water content sensors 1 are connected to a personal computer 5 to enable monitoring of data measured by the soil water content sensor 1 by real time and watering amount is controlled based on the result of soil water content measured by the soil water content sensor.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to outdoor greening in parks, greening in atriums, greening on artificial boards such as rooftops and walls, golf fields, sports grounds of grass such as soccer, rugby and baseball, paddy fields, Fields, orchards, soccer, rugby, baseball and other clay grounds, kindergartens, elementary schools,
It relates to watering methods for clay grounds in junior high schools and high schools, grass turf grounds in indoor domes, clay grounds in indoor domes, and others.

[0002]

2. Description of the Related Art Conventionally, in the case of automatically irrigating a plant, a sprinkler, an irrigation tube, etc. are operated by a timer regardless of the soil water condition in which the plant is planted.

The maintenance of the clay ground is performed by irrigating the clay ground to adjust the ground condition, in particular, the hardness of the ground to a condition suitable for the intended sport. . The Grand Keeper has been doing this for many years.

Further, in the clay ground, dust on the ground surface is frequently generated, and not only maintenance of the ground surface but also cleaning of the entire surrounding facility must be performed frequently. As a countermeasure, water is sprinkled on the surface of the ground.

[0005]

In the conventional irrigation control, sprinklers, irrigation tubes, etc. are operated by a timer regardless of the soil moisture required by the plant, so irrigation may be performed immediately after rainfall. However, it is impossible to always manage the soil moisture which is suitable for the plant when necessary and does not become excessive.

Further, since the irrigation time is controlled by a timer, even if a constant amount of irrigation is performed each time according to the growth condition of the plant, the amount of water that reaches the soil such as leaves of the plant and reaches the soil is not constant. The soil water content cannot be controlled in a suitable state for.

On the other hand, the sprinkling work in the maintenance of the clay ground is performed by the ground keeper while adjusting the proper sprinkling amount based on experience and intuition, but it is necessary to adjust the hardness of the gland necessary for the intended sport. The soil is not measured. Therefore, only the ground keeper can perform the ground management work. Furthermore, it takes many years to master this technique.

With respect to the dust frequently generated on the surface of the clay ground, water is sprinkled on the surface of the ground as a countermeasure after the dust is generated. Preventive watering is not done just before dust is generated. Clay ground dust is generated regardless of whether or not the ground is used, so the ground keeper must be stationed there to deal with it.

The object of the present invention is to eliminate the disadvantages of the above-mentioned conventional example, to reliably irrigate plants when necessary, and to control clay ground to an appropriate soil water condition for each sport, thereby achieving the target sport. It is to provide an irrigation method that can secure a ground quality suitable for.

[0010]

Means for Solving the Problems In order to achieve the above-mentioned object, firstly, a plurality of soil moisture sensors capable of measuring soil moisture content within a certain range are installed in soil, and the soil moisture sensor is used. It is connected to a computer so that the data measured by the soil moisture sensor can be monitored in real time by the computer, and the irrigation volume is adjusted based on the soil moisture content measured by the soil moisture sensor. is there.

Secondly, the irrigation amount or the sprinkling amount is adjusted by controlling the opening / closing of a solenoid valve equipped with a water supply pipe or a water supply tank by the output of the computer. Thirdly, the computer has a soil moisture sensor installed therein. It is possible to set the drying limit value (irrigation start value) and the moistening limit value (irrigation stop value) of the soil water control reference value arbitrarily for each time, and if the measured values are within the range of these two reference values, it is appropriate. If the soil moisture condition is judged and the measured value of the soil moisture sensor is more than the set dry limit value (irrigation start value), an instruction to open is sent to the solenoid valve to start irrigation and the soil moisture sensor When the measured value of is more wet than the set wet limit value (irrigation stop value), the electromagnetic valve is instructed to close and the irrigation is stopped.
Fourthly, the gist of the computer is to display the measurement data in a tabular form only by numbers, and also to visually display the soil moisture state by color-coding the moisture lines such as soil moisture or mesh.

According to the first aspect of the present invention, since the soil water condition of the soil to be watered is directly measured for watering, the water can be surely watered when the plant is needed, and the amount of water required for the plant can be reduced. You can surely irrigate, you can control the soil moisture condition suitable for each sport, you can secure the ground quality suitable for the target sport, you can predict the generation of dust and prevent irrigation by irrigating in advance it can. Furthermore, because the soil moisture condition is measured with multiple soil moisture sensors at a certain time,
It is possible to grasp changes in the water state in soil. Since the soil moisture condition is measured by multiple soil moisture sensors, the moisture condition in the soil is flat (two-dimensional) or three-dimensional (three-dimensional).
Since it is possible to grasp the change in the water state in the soil in a two-dimensional or three-dimensional manner, it is possible to control an appropriate irrigation amount for each irrigation device.

According to the second aspect of the present invention, since the irrigation device can be automatically controlled individually in addition to the above-mentioned action, irrigation can be performed only at a place where irrigation is necessary.

According to the third aspect of the present invention, the irrigation standard can be set for each soil moisture sensor and the irrigation device can be individually controlled, so that plants having different required water contents can be managed at the same time.

According to the present invention as set forth in claim 4, since the soil moisture measurement data is mapped (soil moisture states such as soil moisture are displayed in different colors in a mesh or in a mesh form), visual display is possible. In addition, since the soil moisture measurement data is mapped, the soil moisture condition at any position can be determined, and the visually displayed mapping of the soil moisture measurement data can be used as a reference when humans perform irrigation work. Even an unskilled worker can perform appropriate irrigation work.

[0016]

Embodiments of the present invention will be described below in detail with reference to the drawings. FIG. 1 shows one of the irrigation methods of the present invention.
FIG. 1 is an explanatory view showing an embodiment, in which 1 is a soil moisture sensor capable of measuring soil moisture content within a certain range, and a plurality of this soil moisture sensor 1 is installed in a soil at appropriate intervals.

When the soil moisture sensor 1 controls the soil moisture content for the purpose of controlling the water content of plants, the soil moisture sensor 1 has a p value within a certain range.
It is desirable that the F value (for example, pF1.5 to pF3.0) can be measured, and if the soil water content is controlled for the purpose of controlling the water content of the clay ground, the value that can be measured in% is desirable.

The soil moisture sensor 1 is connected to a switching unit 2, and this switching unit 2 is connected to a data logger 4 (with an output function) via a power supply unit 3 so that the data measured by the soil moisture sensor 1 is data. Recorded by Logger 4.

Further, the data logger 4 is connected to a personal computer 5 having a computer so that the data measured by the soil moisture sensor 1 can be monitored by the personal computer 5 in real time.

With respect to this monitor, the personal computer 5 displays the measurement data only in a numerical form in a tabular form, and as a visual display method, as shown in FIG. The soil moisture condition is color-coded and displayed on a mesh. In the figure, α is a soil moisture measurement point (installation position of the soil moisture sensor 1).

In the display of the soil moisture content line in FIG. 2, the line indicating the field in the case of a soccer field and standing trees, turfgrass, ponds in the case of a garden are displayed on the screen together with the state of soil moisture. Made it possible to display them on top of each other.

As described above, in order to display the soil moisture state in a color-coded manner such as the soil moisture contour line or mesh, the difference between the measured values of the soil moisture sensors 1 is calculated, and the soil moisture state at an arbitrary point is calculated. To estimate.

Further, the screen on which the state of soil moisture is visually displayed can be color-printed, and this color-print is utilized as a judgment material when a person performs the irrigation work.

On the other hand, a sprinkler is used as the watering device 7.
An electromagnetic valve 9 is arranged in the water supply pipe 8 that supplies water to the sprinkler 10. The electromagnetic valve 9 is connected to the personal computer 5 via the switching unit 6 and measured by the soil moisture sensor 1. PC5 from the collected soil moisture data
Controls the opening / closing time of each solenoid valve 9 of the irrigation system 7 of the sprinkler 10 while monitoring the state of soil moisture, thereby automatically controlling the amount of irrigation and always ensuring and maintaining an appropriate soil moisture condition. I did it.

In order to perform such automatic control, the drying limit value (irrigation start value) and the wetting limit value (irrigation stop value) of the soil water control reference values are arbitrarily set for each soil moisture sensor 1 installed on the personal computer 5. If the measured value is within the range of these two reference values, the personal computer 5 determines that the soil water condition is appropriate.

When the measured value of the soil moisture sensor 1 is more than the set drying limit value (irrigation start value), the personal computer 5 and the switching unit 6 are installed in the water supply pipe 8 of the irrigation device 7. An instruction to open is sent to the solenoid valve 9 to start watering.

On the other hand, when the measured value of the soil moisture sensor 1 becomes more wet than the set wet limit value (irrigation stop value), the personal computer 5 and the switching unit 6 send an instruction to close the solenoid valve 9 to stop the irrigation. When the purpose of irrigation is to maintain and manage the plant, the irrigation prohibition time can be set according to the physiology of the target plant.

Signal transmission / reception among the soil moisture sensor 1, the switching unit 2, the power supply unit 3, the data logger 4, the personal computer 5, the switching unit 6 and the solenoid valve 9 is performed by wire (solid line) or wireless (dotted line). Done.

As another embodiment, as the irrigation device 7, as shown in FIG. 4, in the case of underground irrigation using a perforated pipe 11, as shown in FIG. As shown in the case of irrigation with the water spray gun 12, as shown in FIG. 7, in the case of bottom watering with the water tank 13 provided with the drainage pump 14a in the drain pipe 14, as shown in FIG. There are cases.

In any of the cases shown in FIGS. 4 to 8,
The open / close time of the solenoid valve 9 installed in the water supply pipe 8 is set by the computer 5
The amount of irrigation can be automatically controlled by controlling with.

Even when the irrigation system is not automatically controlled as described above, the soil moisture mapping information in which the soil moisture state is color-coded on the mesh lines of the soil moisture and the mesh can be judged at a glance. Since it is displayed, it can be used as a criterion for the irrigation operator, and irrigation by the sprinkler 16 as shown in FIG. 9 can also be performed.

[0032]

As described above, the irrigation method of the present invention is
By installing multiple soil moisture sensors in the soil to be irrigated and using a computer to separate the soil moisture data measured by multiple soil moisture sensors into soil moisture lines and mesh soil color conditions. The soil water condition is mapped, and by using this information, the irrigation volume is controlled by controlling the opening / closing time of each solenoid valve of the irrigation system such as the sprinkler and irrigation tube while monitoring the soil water condition. To ensure a good soil moisture condition,
It can be maintained.

Even when the irrigation system is not automatically controlled, the soil moisture mapping information in which the soil moisture condition is color-coded is displayed in a form that can be judged at a glance, even if the soil moisture isotherms and meshes are displayed. It can be used as a criterion for irrigation workers.

Furthermore, since the soil moisture condition is measured by a plurality of soil moisture sensors for a fixed time, it is possible to grasp the change of the moisture condition in the soil.

In addition to this, since the soil moisture condition is measured by a plurality of soil moisture sensors, it is possible to grasp the moisture condition in the soil in a two-dimensional (two-dimensional) or three-dimensional (three-dimensional) condition. Since the change in the state can be grasped in a plane or in a three-dimensional manner, it is possible to control an appropriate irrigation amount for each individual irrigation device.

The individual effects will be listed below. Since the soil moisture measurement data is mapped (soil moisture states such as soil moisture lines and meshes are displayed in different colors), a visual display is possible. Since the soil moisture measurement data is mapped, the soil moisture condition at any position can be determined. Since it is possible to visually display the mapping of soil moisture measurement data, it can be used as a reference when humans perform irrigation work, and even unskilled workers can perform appropriate irrigation work. Since the water content of the soil to be irrigated is directly measured to perform irrigation, irrigation can be reliably performed when plants are needed. Since the irrigation is performed by directly measuring the soil water condition of the soil to be irrigated, it is possible to reliably irrigate the water required for the plant. Since the irrigation system can be controlled individually, irrigation can be performed only where irrigation is required. Since the watering standard can be set for each soil moisture sensor and the watering system can be controlled individually, plants with different required water contents can be managed at the same time. Since the water content of the soil to be irrigated is measured directly and irrigation is performed, it is possible to control the soil water status to be appropriate for each sport and to secure the ground quality suitable for the target sport. Since the soil moisture condition of the soil to be watered is directly measured, it is possible to predict the generation of dust and prevent water generation by performing watering in advance.

[Brief description of the drawings]

FIG. 1 is an explanatory view showing an embodiment of a watering method of the present invention.

FIG. 2 is a front view showing an example of a monitor screen.

FIG. 3 is a front view showing another example of the monitor screen.

FIG. 4 is an explanatory diagram showing a second example of the irrigation device.

FIG. 5 is an explanatory diagram showing a second example of the irrigation device.

FIG. 6 is an explanatory diagram showing a third example of the irrigation device.

FIG. 7 is an explanatory diagram showing a fourth example of the irrigation device.

FIG. 8 is an explanatory diagram showing a fifth example of the irrigation device.

FIG. 9 is an explanatory diagram showing another example of irrigation.

[Explanation of symbols]

1 ... Soil moisture sensor 2 ... Switching unit 3 ... Power supply unit 4 ... Data logger 5 ... Personal computer 6 ... Switching unit 7 ... Irrigation device 8 ... Water supply pipe 9 ... Solenoid valve 10 ... Sprinkler 11 ... Perforated pipe 12 ... Water spray gun 13 ... Water tank 14 ... Drain pipe 14a ... Drain pump 15 ... Mobile sprinkler 16 ... Sprinkler

Claims (4)

[Claims] 1. A plurality of soil moisture sensors capable of measuring a certain range of soil moisture content are installed in soil, the soil moisture sensors are connected to a computer, and the data measured by the soil moisture sensor by the computer is real-time. A irrigation method which enables monitoring and adjusts the irrigation amount based on the measurement result of the soil moisture content by a soil moisture sensor. 2. The irrigation method according to claim 1, wherein the irrigation amount or the sprinkling amount is adjusted by controlling the opening / closing of a solenoid valve equipped with a water supply pipe or a water supply tank by the output of a computer. 3. A computer can arbitrarily set a drying limit value (irrigation start value) and a wetting limit value (irrigation stop value) of soil water control reference values for each installed soil moisture sensor. If the measured value is within the range, it is determined that the soil moisture condition is appropriate, and if the measured value of the soil moisture sensor is more than the set drying limit value (irrigation start value), the solenoid valve is opened. The irrigation method according to claim 2, wherein when an instruction is sent and irrigation is started, and the measured value of the soil moisture sensor becomes more wet than a set moistening limit value (irrigation stop value), an instruction to close the electromagnetic valve is sent and irrigation is stopped. . 4. The computer displays the measurement data only in numbers in a tabular form, and also visually displays the soil moisture state by color-coding the moisture lines such as soil moisture or mesh. The irrigation method described in.