CN106922484B - Layout method of spray heads in humidification area - Google Patents
Layout method of spray heads in humidification area Download PDFInfo
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- CN106922484B CN106922484B CN201710082935.2A CN201710082935A CN106922484B CN 106922484 B CN106922484 B CN 106922484B CN 201710082935 A CN201710082935 A CN 201710082935A CN 106922484 B CN106922484 B CN 106922484B
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- square
- spray head
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- area
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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
- A01G25/00—Watering gardens, fields, sports grounds or the like
- A01G25/02—Watering arrangements located above the soil which make use of perforated pipe-lines or pipe-lines with dispensing fittings, e.g. for drip irrigation
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
- G06Q10/00—Administration; Management
- G06Q10/04—Forecasting or optimisation specially adapted for administrative or management purposes, e.g. linear programming or "cutting stock problem"
Abstract
The invention belongs to the field of humidification, and particularly relates to a humidification device which divides a humidification area into a plurality of equilateral triangles and/or a plurality of squares; when the humidifying area is divided into a plurality of equilateral triangles, a spray head is arranged at the center of each equilateral triangle, and the spray range of the spray head is ensured to be the circumcircle range of the equilateral triangle; when dividing the humidification region into a plurality of square, put at the central point of square and set up the shower nozzle No. one, set up No. two shower nozzles in four angles departments of square or the diagonal of square near four angle departments, a shower nozzle and No. two shower nozzles can realize the comprehensive humidification to square region, and its injection scope of effectively utilizing the shower nozzle avoids the overlapping of shower nozzle injection scope, reduces the waste of water resource.
Description
Technical Field
The invention belongs to the field of humidification, and particularly relates to a method for arranging spray heads in a humidification area.
Background
Humidification irrigation is a technical means which must not be lost in daily production and life, for example, lawns often cause a large amount of water resource waste due to unscientific irrigation, and the amount of water resource waste due to greening irrigation accounts for 26 percent of the total amount of water resource waste every year according to the statistics of environmental protection departments. While unscientific irrigation can also lead to rot and death of the green. For example, vegetables on vegetable shopping guides in vegetable markets, supermarkets, and other places often dry yellow leaves due to untimely watering, or vegetables are rotten due to unreasonable watering. The method not only causes the long-term sale of a large amount of vegetables and the serious waste of grain resources, but also causes the problem that people cannot eat healthy and green vegetables in life.
Therefore, how to reasonably arrange the arrangement position of the spray head during humidification and irrigation becomes an urgent need for solving the problem of reasonably utilizing water resources.
Disclosure of Invention
The invention provides a layout method of spray heads in a humidification area, which effectively utilizes the spray range of the spray heads, avoids the overlapping of the spray ranges of the spray heads and reduces the waste of water resources.
In order to achieve the technical purpose, the specific technical means adopted by the invention is that the humidifying area is divided into a plurality of equilateral triangles and/or a plurality of squares; when the humidifying area is divided into a plurality of equilateral triangles, a spray head is arranged at the center of each equilateral triangle, and the spray range of the spray head is ensured to be the circumcircle range of the equilateral triangle; when dividing the humidification region into a plurality of square, set up shower nozzle No. one in the central point of square position, set up No. two shower nozzles at four angles departments of square or the diagonal of square and be close to four angles punishment, a shower nozzle and No. two shower nozzles can realize the comprehensive humidification to square region.
As an improved technical scheme of the invention, when the humidifying area is divided into a plurality of squares and four second spray heads are arranged at the positions close to the four corners of the diagonal line of the square, the spray range of the first spray head is circular, and the radius of the circular spray range is
In the formula, R is the radius of the spraying range of the first spray head, and a is the side length of a square; the spraying range of the second spray head is circular, and the radius of the circular spraying range is
In the formula, R is the radius of the spraying range of the second spray head, a is the side length of a square, and R is the radius of the spraying range of the first spray head.
As an improved technical scheme, the humidifying device is applied to humidifying the vegetable shopping guide fence and irrigating the lawn.
As an improved technical scheme of the invention, the vegetable shopping guide rail comprises a bracket with an inclined plane, a net-shaped placing rail, a water storage tank and a spray head; the net-shaped placing columns are arranged in parallel and are arranged on the inclined plane of the bracket; the water storage tank is arranged at the bottom end of the bracket; the spray head is arranged on the reticular placing fence and is communicated with the water storage tank through a power device arranged outside the vegetable shopping guide fence; wherein the net-shaped placing fence is a humidifying area.
As an improved technical scheme of the invention, a plurality of slots are arranged on the inclined surface of the bracket along the height direction, and the reticular placing fence is arranged on the inclined surface of the bracket by inserting the slots.
As an improved technical scheme of the invention, the height of the bracket is 180 cm.
As an improved technical scheme of the invention, the width of the net-shaped placing columns is 50cm, and the interval between every two layers of net-shaped placing columns is 30 cm.
As an improved technical scheme of the invention, the net-shaped placing column is designed into an isosceles trapezoid with a base angle of 60 degrees.
As an improved technical scheme of the invention, when the water is used for the vegetable shopping guide column, water is poured every 90 minutes at the room temperature of 25 ℃.
As an improved technical scheme of the invention, when the lawn watering device is used for watering the lawn, the watering time is 9 am, four pm and 8 pm.
Advantageous effects
By adopting the arrangement method of the spray heads, the spray range of the spray heads can be effectively utilized, the overlapping of the spray ranges of the spray heads is avoided, and the waste of water resources is reduced. And this scheme has the popularization nature, can popularize to the watering of crops and flowers etc..
Drawings
FIG. 1 is a schematic diagram of a regular triangle division of a humidification region;
FIG. 2 is a schematic diagram showing a square division of the humidification region;
FIG. 3 is another schematic diagram of a square division of the humidification region;
FIG. 4 is a schematic view of a structure of a vegetable shopping guide;
FIG. 5 is a derivative view of a square showerhead layout for the wet zone;
in the figure, 1, a spray head; 2. a net-shaped placing fence; 3. a support; 4. a slot; 5. a water pipe; 6. a rotating shaft; 7. a bottom groove.
Detailed Description
In order to make the purpose and technical solution of the embodiments of the present invention clearer, the technical solution of the present invention will be clearly and completely described below with reference to the embodiments of the present invention. It is to be understood that the embodiments described are only a few embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the described embodiments of the invention without any inventive step, are within the scope of protection of the invention.
It will be understood by those skilled in the art that, unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the prior art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.
The arrangement method of the spray heads in the humidification area comprises the following steps of dividing the humidification area into a plurality of equilateral triangles or a plurality of squares according to the shape selection of the humidification area; when the humidifying area is divided into a plurality of equilateral triangles, a spray head is arranged at the center of each equilateral triangle, and the spray range of the spray head is ensured to be the circumcircle range of the equilateral triangle;
the conclusion is that, let A and B be two vertexes of any triangle, and set up a coordinate system with AB as x axis, A and B are symmetrical about y axis, and A coordinate is (-a)10) and B coordinate is (a)1,0). C is the third vertex, its circumscribed circle is as shown. Assuming that the utilization rate is P ═ S triangle/S circle, then:
let the C point coordinate be (x)0,y0) The coordinate of the center of a circle is
Assuming that the circumscribed circle radius is r1, then: s-triangle a1 y 0;
therefore, it is not only easy to use
Because it is too difficult to directly obtain the extreme value of P, obtain the extreme value of 1/P,
1/P＝π×a1/y0+π×y0/4×a1+π×(x0 2-a1 2)2/a1×4×y0 3+π×(x0 2-a1 2)/2×a1×y0；
let the partial derivative of 1/P be zero,
solved to 1, x0 ═ 0, (y)0 2-3×a1 2)×(y0 2+a1 2) 0; then:
2、x0 2+y0 2-a1 2＝0，π×a1/y0 2if 0, then there is no solution.
Considering the 1/P domain, it is easy to know that the extreme value is the most value, so when considering
When x0 is 0, P is maximum.
Namely, when the triangular area is positioned to be a regular triangle, the utilization rate of water is the maximum.
From fig. 1, it is easy to know that, in combination with the infinite length property of the straight line, the plane can be divided into a certain number of regular triangle areas (when the line is applied to a plane, such as a lawn, the area of the lawn is far larger than the coverage area of the nozzle), and the division can be realized only by continuously making parallel lines.
When the humidifying area is divided into a plurality of squares, a first spray head is arranged at the center of each square, and four second spray heads are arranged at four corners of each square or on diagonal lines and close to the four corners; the first spray head and the second spray head can realize the comprehensive humidification of the square.
When the second nozzle is arranged at four corners of the square, as shown in fig. 2, the second nozzle can be fan-shaped or circular, and the diameter of the second nozzle is the length of the side of the square minus the length of the side of the square occupied by the first nozzle when the first nozzle sprays the second nozzle; the spraying diameter of the first spray head is preferably
As shown in FIG. 3, the second nozzle is arranged on the diagonal line of the square and adjacent to four corners, specifically, the first nozzle has a circular spraying range, and the radius of the circular spraying range isIn the formula, R is the radius of the spraying range of the first spray head, and a is the side length of a square; the spraying range of the second spray head is circular, and the radius of the circular spraying range is
In the formula, r is the radius of the spraying range of the second spray head, and a is the side length of a square.
The conclusions are derived from: the side length of a square is a, the radius of a large circle is R, and the radius of a small circle is R. Since P is the sum of S square/S coverage area; the scheme of minimum coverage area can be obtained only by controlling the area of the square to be unchanged.
Specifically, the geometrical relationship shown in fig. 4 is derived: (the small circle just covers the uncovered area of the large circle, i.e. when taking isochronism).
As shown in FIG. 4, point E is the center of the small circle, and point C is the center of the large circle. Point E is on the diagonal of the square and point C is at the center of the square. Making CB vertical to the square edge, and knowing that CB is AB is a/2; CD ═ R, in right triangle BCD, Pythagorean theorem
Therefore, it is not only easy to useBecause the small circle passes through the point A and the point D, and the circle center E is on the diagonal line of the square, the included angle is 45 degrees. So that the triangular AED is an isosceles right triangle, so
AE＝r；
Therefore, it is not only easy to use
Assuming that the side length of the square is a, the side length is a and is a known constant; then:
setting the radius of a first spray head as R, and the circle center at the center of a square; the radius of the second spray head is set as r, and the center of the circle is on the diagonal line of the square.
The first spray head and the second spray head cover the square area completely, and the geometric relationship in the figure shows that
Then the coverage area of the first nozzle and the second nozzle is
S＝π×R2+4×π×r2I.e. by
Derivation of S with respect to R, when the derivative is 0And at the same time, the S value is a minimum value: smin＝5×π×a2/12；
Because: the utilization rate is P ═ S square/S circle, the square area is a2Constant, so when sigmoid is minimum, the utilization factor pmax P is 12/5 × pi.
As an improved technical scheme, the humidifying device is applied to humidifying the vegetable shopping guide fence and irrigating the lawn.
When the vegetable shopping guide fence is used, as shown in fig. 3, a spray head 1, a net-shaped placing fence 2, a bracket 3, a slot 4, a water pipe 5, a rotating shaft 6 and a bottom groove 7 are arranged. The vegetable shopping guide rail comprises a bracket with an inclined plane, a net-shaped placing rail, a water storage tank and a spray head; the net-shaped placing columns are arranged in parallel and are arranged on the inclined plane of the bracket; the water storage tank is arranged at the bottom end of the bracket; the spray head is arranged on the reticular placing fence and is communicated with the water storage tank through a power device arranged outside the vegetable shopping guide fence; wherein the net-shaped placing fence is a humidifying area. According to statistics, the average height of Chinese is 164cm, and the average arm spread is 145 cm. Shopping guide fence support height is 180cm, the contained angle between support and the bottom catch basin is adjustable, the support is connected through ability pivoted pivot with the catch basin, for the mode of vegetables of convenience, the inclined plane of support is equipped with a plurality of slot along the direction of height, netted fence of placing is installed on the inclined plane of support through inserting the slot, and can adjust netted position of placing the fence according to the variety of vegetables, netted fence of placing is fixed on the inclined plane of support through inserting the slot, every netted vegetables place the transversal width of fence and be 50cm, the interval between every layer of slot is 30 cm. The water pipe is fixed on the bracket and connected with the spray head on the placing fence to water the vegetables. The fence is placed to support, vegetables, and the kerve is netted, avoids retaining to lead to vegetables to rot.
In order to facilitate the maximum utilization of water resources, the net-shaped placing column is designed into an isosceles trapezoid with a bottom angle of 60 degrees.
According to biological knowledge such as dehydration rate of plant cell wall, it is known that when the room temperature is about 25 ℃, water is poured every 90 minutes, so that the water of the plant can be kept best. Particularly, intelligent watering can be realized through an STC89C51 type single chip microcomputer produced by an STC company. The timing of 90 minutes is realized through the timer function of singlechip self-bring, and when ninety minutes arrived, singlechip control opens the pronunciation player (adopt the ISD4003 pronunciation chip of American ISD company production) to open the sprinkler bead through the electromagnetic relay switch, realize that the vegetables are watered.
When the watering method is used for watering the lawn, the optimum time in one day is selected according to the lawn and the weather condition. The temperature in summer is high, the water is watered in the morning and at night, the evaporation capacity is small, the evaporation capacity of the water watered in the noon is large, and the watering time is selected to be before 9 am and after 16 pm. The optimal time is in the morning, except the water needed by the lawn for one day, the leaves are dry at night, and the growth of germs can be prevented.
The above are merely embodiments of the present invention, which are described in detail and with particularity, and therefore should not be construed as limiting the scope of the invention. It should be noted that, for those skilled in the art, various changes and modifications can be made without departing from the spirit of the present invention, and these changes and modifications are within the scope of the present invention.
Claims (9)
1. The arrangement method of the spray heads in the humidification area is characterized in that the humidification area is divided into a plurality of equilateral triangles and/or a plurality of squares; when the humidifying area is divided into a plurality of equilateral triangles, a spray head is arranged at the center of each equilateral triangle, and the spray range of the spray head is ensured to be the circumcircle range of the equilateral triangle; when the humidifying area is divided into a plurality of squares, a first spray head is arranged at the center of each square, four second spray heads are arranged at four corners of each square or positions close to four corners of a diagonal line of each square, and the first spray heads and the second spray heads can realize the comprehensive humidification of the square area; when the second spray head is arranged at four corners of the square, the second spray head is fan-shaped or circular, and the diameter of the second spray head is the length of the side of the square minus the length of the side of the square occupied by the first spray head when the first spray head sprays on the first spray head; when four second spray heads are arranged at the positions close to four corners of the diagonal line of the square, the spray range of the first spray head is circular, and the radius of the circular spray range is
In the formula, R is the radius of the spraying range of the first spray head, and a is the side length of a square; the spray range of the second spray head is circular, and the radius of the circular spray rangeIs composed of
In the formula, R is the radius of the spraying range of the second spray head, a is the side length of a square, and R is the radius of the spraying range of the first spray head.
2. The method of claim 1, wherein the method is applied to the humidification of vegetable shopping guide rails and lawn watering.
3. The method as claimed in claim 2, wherein the vegetable shopping guide comprises a frame with a slant surface, a net-shaped placing column, a water storage tank, and a nozzle; the net-shaped placing columns are arranged in parallel and are arranged on the inclined plane of the bracket; the water storage tank is arranged at the bottom end of the bracket; the spray head is arranged on the reticular placing fence and is communicated with the water storage tank through a power device arranged outside the vegetable shopping guide fence; wherein the net-shaped placing fence is a humidifying area.
4. The arranging method of humidification area nozzles as claimed in claim 3, wherein the inclined surface of the support frame is provided with a plurality of slots in a height direction, and the mesh-shaped placement rail is installed on the inclined surface of the support frame through the insertion slots.
5. A method of laying humidification area spray heads as claimed in claim 3 wherein the height of the support is 180 cm.
6. The method of claim 3, wherein the width of the mesh-like arrangement columns is 50cm, and the interval between each layer of the mesh-like arrangement columns is 30 cm.
7. The arranging method of humidification area nozzles as claimed in claim 3, wherein the net-like disposition fence is designed as an isosceles trapezoid having a base angle of 60 °.
8. The arranging method of humidifying area nozzles as claimed in claim 2 or 3, wherein when used in the vegetable shopping guide, water is poured every 90 minutes at a room temperature of 25 ℃.
9. The method of claim 2, wherein the watering time is 9 am, four pm and 8 pm for lawn watering.
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| CN110583445B (en) * | 2019-09-20 | 2021-08-27 | 中国水利水电科学研究院 | Intelligent water-saving regulation and control system for wheat irrigation |
| CN115055301A (en) * | 2022-05-30 | 2022-09-16 | 上海应用技术大学 | Automatic spraying machine with visual positioning function for experiments |
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