Monitoring and Maintenance System Applied to Agricultural Automatic Irrigation Equipment

Abstract

The present invention is applicable to the field of agricultural irrigation systems, and provides a monitoring and operation and maintenance system for agricultural automatic watering equipment, including: a water pressure regulation unit, a detection unit, and a control unit, which controls the water pressure regulation unit to adjust the water pressure according to the intervals divided by the two; the adjustment method is that the water pressure demarcation line divides the watering area into a shortening area and an elongation area. When the rotation angle of the rotary sprinkler enters the shortening area, the control unit controls the water pressure regulation unit to increase the spraying water pressure; when the rotation angle of the rotary sprinkler enters the elongation area, the control unit controls the water pressure regulation unit to decrease the spraying water pressure; the adjustment strength gradually increases from the position of the water pressure demarcation line to the position of the symmetric demarcation line, and the adjustment methods for the areas on both sides of the water pressure demarcation line are symmetric. Thus, the present invention can, during the watering process, sense the changes in wind direction and wind force, adjust the water pressure value during the rotary spraying process of the rotary sprinkler, and reduce the influence of wind force on the coverage range of the atomized water flow.

Description

Technical Field

[0001] The present invention relates to the field of agricultural irrigation systems, and particularly to a monitoring and operation and maintenance system applied to agricultural automatic irrigation equipment. Background Art

[0002] The application of automatic irrigation systems in agriculture not only improves agricultural production efficiency, but also makes progress for the modern development of the agricultural economy. The current automatic irrigation systems mainly include irrigation types such as sprinkler irrigation, drip irrigation, and subsurface irrigation.

[0003] Among them, for an automatic sprinkler irrigation system, rotating sprinklers are installed on the irrigated ground at equal intervals in rows; the atomized water flow sprayed by the rotating sprinklers performs irrigation work within a predetermined range. Among them, the biggest problem encountered during the use of sprinkler irrigation is that when used in a windy environment, it will cause spraying blind spots.

[0004] In summary, it is obvious that the existing technology has inconveniences and defects in actual use, so it is necessary to improve it. Summary of the Invention

[0005] In view of the above defects, the purpose of the present invention is to provide a monitoring and operation and maintenance system applied to agricultural automatic irrigation equipment, which can sense the changes in wind direction and wind force during the irrigation process, adjust the water pressure value during the rotating sprinkler irrigation process, and reduce the influence of wind force on the coverage range of the atomized water flow.

[0006] To achieve the above purpose, the present invention provides a monitoring and operation and maintenance system applied to agricultural automatic irrigation equipment, including: a water pressure regulation unit that regulates the water pressure of the water flow sprayed by the rotating sprinkler; a detection unit that includes an angle detection unit for detecting the rotation angle of the rotating sprinkler, a water pressure detection unit for detecting the water pressure of the sprayed water flow, and a wind force sensing unit and a wind direction sensing unit for sensing wind force and wind direction; a control unit that obtains the wind force and wind direction of the environment where the detected equipment is located, and draws up and generates a symmetric dividing line parallel to the wind direction and a water pressure dividing line perpendicular to the wind direction; the control unit controls the water pressure regulation unit to adjust the water pressure according to the intervals divided by the two; the adjustment method is that the water pressure dividing line divides the irrigation area into a shortening area and an elongation area. When the rotation angle of the rotating sprinkler enters the shortening area, the control unit controls the water pressure regulation unit to increase the spraying water pressure; when the rotation angle of the rotating sprinkler enters the elongation area, the control unit controls the water pressure regulation unit to reduce the spraying water pressure; the adjustment strength gradually increases from the position of the water pressure dividing line to the position of the symmetric dividing line; for the two regions on both sides of the symmetric dividing line, it is a symmetric adjustment mode.

[0007] For the monitoring and operation and maintenance system applied to agricultural automatic irrigation equipment according to the present invention, the control unit obtains the wind force value For of the wind force sensing unit and further calculates the maximum water pressure adjustment value T MAX ; The maximum water pressure adjustment value T MAX is calculated according to the following formula: T MAX = For × α, where α is the adjustment coefficient; the rotation angle is adjusted from the water pressure demarcation line position to the symmetric demarcation line position, and the adjustment strength gradually increases from 0 to the maximum water pressure adjustment value T MAX .

[0008] For the monitoring and operation and maintenance system applied to agricultural automatic irrigation equipment according to the present invention, the injection water pressure in the shortening area is maximally adjusted to T0 + T MAX ; The injection water pressure in the elongation area is maximally adjusted to T0 - T MAX .

[0009] For the monitoring and operation and maintenance system applied to agricultural automatic irrigation equipment according to the present invention, the adjustment strength of the injection water pressure increases gradually from 0 to the maximum water pressure adjustment value T MAX with equal growth, that is, the growth value is calculated according to the following formula: T 增 = |T MAX - T0| ÷ (90° ÷ Δs); where Δs is the single deflection angle of the rotating sprinkler.

[0010] For the monitoring and operation and maintenance system applied to agricultural automatic irrigation equipment according to the present invention, the control unit calculates the coverage angle C of the water - shortage area S1 according to the wind force value For of the wind force sensing unit; the coverage angle C is calculated according to the following formula: A = For × β, where β is the unit conversion coefficient; the coverage angle C is symmetrically distributed on both sides of the symmetric demarcation line.

[0011] For the monitoring and operation and maintenance system applied to agricultural automatic irrigation equipment according to the present invention, the control unit obtains the water - rich area S2 on the opposite side of the water - shortage area S1; and further adjusts the water pressure in the water - rich area S2, where the maximum water pressure in the water - rich area S2 is calculated according to the following formula: T MD = Dis ÷ For × , where Dis is the distance between two adjacent groups of rotating sprinklers; For is the wind force value sensed by the wind force sensing unit, is the unit conversion coefficient.

[0012] For the monitoring and operation and maintenance system applied to agricultural automatic irrigation equipment according to the present invention, the adjustment strength of the injection water pressure in the water - rich area S2 increases gradually from TC to the maximum water pressure adjustment value T MD with equal growth; where TC is the water pressure value corresponding to the coverage angle C; and the growth of the injection water pressure in the water - rich area S2 is, TMD增 =|T MD -TC|÷(C÷Δs).

[0013] The present invention provides a monitoring and operation and maintenance system applied to an agricultural automatic irrigation device, including: a water pressure regulation unit for regulating the water pressure of the water flow sprayed by a rotary sprinkler; a detection unit including an angle detection unit for detecting the rotation angle of the rotary sprinkler, a water pressure detection unit for detecting the water pressure of the sprayed water flow, and a wind force sensing unit and a wind direction sensing unit for sensing wind force and wind direction; a control unit for obtaining the wind force and wind direction of the environment where the device is located detected by the detection unit, and formulating and generating a symmetric dividing line parallel to the wind direction and a water pressure dividing line perpendicular to the wind direction; the control unit controls the water pressure regulation unit to adjust the water pressure according to the intervals divided by the two; the adjustment method is that the water pressure dividing line divides the irrigation area into a shortening area and an elongation area. When the rotation angle of the rotary sprinkler enters the shortening area, the control unit controls the water pressure regulation unit to increase the spraying water pressure; when the rotation angle of the rotary sprinkler enters the elongation area, the control unit controls the water pressure regulation unit to reduce the spraying water pressure; the adjustment strength gradually increases from the position of the water pressure dividing line to the position of the symmetric dividing line; for the two side areas bounded by the symmetric dividing line, it is a symmetric adjustment mode. The present invention can sense the changes in wind direction and wind force during the irrigation process, adjust the water pressure value during the rotary sprinkler rotation and spraying process, and reduce the influence of wind force on the coverage range of the atomized water flow. Description of the Drawings

[0014] Figure 1 is a comparison schematic diagram of the atomized water flow before and after water pressure adjustment;

[0015] Figure 2 is a rotation trajectory diagram of the rotary sprinkler before water pressure adjustment;

[0016] Figure 3 is a schematic diagram of the irrigation range of adjacent rotary sprinklers after water pressure adjustment;

[0017] In the figure, 1 - symmetric dividing line, 2 - water pressure dividing line, 11 - shortening area, 12 - elongation area, S1 - water shortage area, S2 - water-rich area. Detailed Embodiments

[0018] In order to make the objectives, technical solutions and advantages of the present invention clearer and more understandable, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0019] The present invention provides a monitoring and operation and maintenance system applied to an agricultural automatic irrigation device. The monitoring and operation and maintenance system applied to an agricultural automatic irrigation device includes:

[0020] A water pressure regulation unit that regulates the water pressure of the water flow sprayed by the rotating sprinkler. The water pressure regulation unit can adopt an electronically controlled regulating valve (the regulating valve is signal-connected to the control unit), which is installed on the supply pipeline of the rotating sprinkler. It should be noted in detail that a regulating valve is installed on the supply pipeline (branch pipe) of each rotating sprinkler in the entire irrigation system.

[0021] A detection unit, which includes an angle detection unit for detecting the rotation angle of the rotating sprinkler (an angle sensor can be used, which is installed on the supply pipeline of the rotating sprinkler, and its rotatable output end is connected to the rotating sprinkler to detect the rotation angle of the rotating sprinkler), a water pressure detection unit for detecting the water pressure of the sprayed water flow (a water pressure sensor can be used to detect the water pressure adjusted by the water pressure regulation unit in real time), and a wind force sensing unit for sensing the wind force and wind direction (specifically, it can be a wind force sensor) and a wind direction sensing unit (specifically, it can be a wind direction sensor);

[0022] A control unit (portable computer) that obtains the wind force and wind direction of the environment where the detected device is located, and formulates and generates a symmetric dividing line 1 parallel to the wind direction and a water pressure dividing line 2 perpendicular to the wind direction; the control unit controls the water pressure regulation unit to adjust the water pressure according to the intervals divided by the two;

[0023] The adjustment method is that the water pressure dividing line 2 divides the watering area into a shortening area 11 (the coverage area of the atomized water flow in the shortening area 11 is reduced by the action of the wind force. In the figure, the area of the shortening area 11 is reduced from the dotted line area to the actual area) and an elongation area 12 (the coverage area of the atomized water flow in the elongation area 12 is increased by the action of the wind force. In the figure, the area of the elongation area 12 is increased from the dotted line area to the actual area). When the rotation angle of the rotating sprinkler enters the shortening area 11, the control unit controls the water pressure regulation unit to increase the spraying water pressure to overcome the wind force and ensure the coverage range of the atomized water flow; when the rotation angle of the rotating sprinkler enters the elongation area 12, the control unit controls the water pressure regulation unit to reduce the spraying water pressure to reduce the repetition degree of the irrigation area of adjacent rotating sprinklers.

[0024] See Figure 2 , the adjustment strength gradually increases from the position of the water pressure dividing line 2 to the position of the symmetric dividing line 1; the two regions on both sides of the symmetric dividing line 1 are in a symmetric adjustment mode. For example, Figure 2As shown, during the rotation of the rotary sprinkler from angle A to angle B, to overcome the wind force, the water pressure control unit gradually increases the water pressure; during the rotation of the rotary sprinkler from angle B to angle A', the water pressure control unit gradually adjusts the water pressure back to the initial value; similarly, during the rotation of the rotary sprinkler from angle A' to angle B', to reduce the diffusion of the atomized water flow, the water pressure control unit gradually reduces the water pressure (lower than the initial water pressure value); during the rotation of the rotary sprinkler from angle B' to angle A, the water pressure control unit gradually adjusts the water pressure back to the initial value.

[0025] The specific adjustment intensity of the water pressure is related to the wind force value For sensed by the wind force sensing unit: The control unit obtains the wind force value For of the wind force sensing unit and further calculates the maximum water pressure adjustment value T MAX ;

[0026] The maximum water pressure adjustment value T MAX is calculated according to the following formula: T MAX = For × α, where α is the adjustment coefficient;

[0027] When the rotation angle is adjusted from the position of the water pressure demarcation line 2 to the position of the symmetry demarcation line 1, the adjustment intensity gradually increases from 0 to the maximum water pressure adjustment value T MAX .

[0028] After obtaining the maximum water pressure adjustment value T MAX the water pressure in the corresponding interval is further calculated. The maximum injection water pressure in the shortening area 11 is adjusted to T0 + T MAX ; The maximum injection water pressure in the elongation area 12 is adjusted to T0 - T MAX , where T0 is the initial water pressure value (the water pressure value when the rotary sprinkler is at angle A or A'). And the adjustment intensity of the injection water pressure gradually increases from 0 to the maximum water pressure adjustment value T MAX has the same growth rate (for example, during the rotation of the rotary sprinkler from angle A to angle B, the water pressure value increases from T0 to T0 + T MAX ), that is, the growth rate value is calculated according to the following formula:

[0029] T 增 = |T MAX - T0| ÷ (90° ÷ Δs); where Δs is the single deflection angle of the rotary sprinkler, and the calculated T 增 refers to the water pressure adjustment size after a single deflection of the rotary sprinkler. For example, during the rotation of the rotary sprinkler from angle A to angle B, the water pressure control unit adjusts the water pressure from T0 to T0 + T MAX , and the water pressure increases by one T 增 value (i.e., T0 + T 增). In contrast, during the rotation of the rotary nozzle from angle B to angle A', the water pressure of each single deflection of the rotary nozzle decreases by a T 增 value (i.e., T0 + T MAX - T 增 ). During the rotation of the rotary nozzle from angle A' to angle B', the water pressure of each single deflection of the rotary nozzle decreases by a T 增 value (i.e., T0 - T 增 ); during the rotation of the rotary nozzle from angle B' to angle A, the water pressure of each single deflection of the rotary nozzle increases by a T 增 value (i.e., T0 + T 增 ).

[0030] Meanwhile, the atomized water flow sprayed by the rotary nozzle will form a water-deficient area S1 and a water-rich area S2 under the action of the wind pressure (the formation reasons of the water-deficient area S1 and the water-rich area S2 are both due to the bending of the atomized water flow under the influence of the wind pressure, resulting in an error from the original spraying position. See Figure 1 , and the arrows in the figure indicate the wind pressure direction). In this regard, to solve the problem of uneven irrigation, the present application is further optimized on the basis of the above embodiments.

[0031] The control unit calculates the coverage angle C of the water-deficient area S1 according to the wind force value For of the wind force sensing unit; the coverage angle C is calculated according to the following formula:

[0032] A = For × β, where β is the unit conversion coefficient;

[0033] The missing angle (missing range) of the water-deficient area S1 is affected by the wind force value For (i.e., the wind pressure). The greater the wind force value For, the greater the deviation degree of the atomized water flow from the original trajectory, further resulting in a larger missing angle. It should be noted that the coverage angle C is symmetrically distributed on both sides of the symmetry dividing line 1, that is to say, the single side of the symmetry dividing line 1 is the C / 2 angle value.

[0034] See Figure 1 and Figure 3 , the control unit obtains the water-rich area S2 on the opposite side of the water-deficient area S1. The water-rich area S2 actually appears naturally under the influence of the wind pressure. However, in the present application, the control unit controls the coverage angle of the water-rich area S2 to be equal to the coverage angle of the water-deficient area S1; at the same time, the control unit further adjusts the water pressure of the water-rich area S2. The purpose of the above adjustment is to make the water-deficient area S1 of the rotary nozzle at a certain position be supplemented by the water-rich area S2 of the adjacent position rotary nozzle to ensure the reduction of the missing degree of the irrigation range.

[0035] Among them, the maximum water pressure of the water-rich area S2 (i.e., Figure 3The water pressure value at angle C’ is calculated according to the following formula:

[0036] T MD =Dis÷For× , where Dis is the distance between two adjacent groups of rotating nozzles; For is the wind force value sensed by the wind force sensing unit, is the unit conversion coefficient.

[0037] The adjustment intensity of the injection water pressure in the multi-water area S2 gradually increases from TC to the maximum water pressure adjustment value T MD (indicating Figure 3 in which the spraying range rotates from position C to position C’), and the growth is equal;

[0038] where TC is the water pressure value corresponding to the coverage angle C;

[0039] The growth of the injection water pressure in the multi-water area S2 is such that T MD增 =|T MD −TC|÷(C÷Δs). That is, when the rotating nozzle rotates from position C (or angle) to position C’ (or angle), the water pressure of each single deflection of the rotating nozzle increases by a T MD增 (i.e., TC + T MD增 ). On the contrary, when the rotating nozzle rotates from position C’ (or angle) to position C’’ (or angle), the water pressure of each single deflection of the rotating nozzle decreases by a T MD增 (i.e., TC - T MD增 ).

[0040] Of course, the present invention may also have many other embodiments. Without departing from the spirit and essence of the present invention, those skilled in the art can make various corresponding changes and deformations according to the present invention. However, these corresponding changes and deformations should all fall within the protection scope of the appended claims of the present invention.

Claims

1. A monitoring and operation and maintenance system applied to agricultural automatic irrigation equipment, characterized in that, Including: A water pressure regulation unit that regulates the water pressure of the water flow sprayed by the rotary sprinkler; A detection unit that includes an angle detection unit for detecting the rotation angle of the rotary sprinkler, a water pressure detection unit for detecting the water pressure of the sprayed water flow, a wind force sensing unit and a wind direction sensing unit for sensing wind force and wind direction; A control unit that obtains the wind force and wind direction of the environment where the detected device is located, and draws up and generates a symmetric dividing line parallel to the wind direction and a water pressure dividing line perpendicular to the wind direction; the control unit controls the water pressure regulation unit to adjust the water pressure according to the intervals divided by the two; The adjustment method is that the water pressure dividing line divides the watering area into a shortening area and an elongation area. When the rotation angle of the rotary sprinkler enters the shortening area, the control unit controls the water pressure regulation unit to increase the spraying water pressure; when the rotation angle of the rotary sprinkler enters the elongation area, the control unit controls the water pressure regulation unit to reduce the spraying water pressure; The adjustment intensity gradually increases from the position of the water pressure dividing line to the position of the symmetric dividing line; for the two side areas bounded by the symmetric dividing line, it is a symmetric adjustment mode.

2. The monitoring and operation and maintenance system applied to the agricultural automatic irrigation equipment according to claim 1, wherein, The control unit obtains the wind force value For of the wind force sensing unit and further calculates the maximum value T of water pressure regulation MAX ; Maximum water pressure regulation value T MAX It is calculated according to the following formula: T MAX = For × α, where α is the regulation coefficient; The rotation angle is adjusted from the position of the water pressure demarcation line to the position of the symmetry demarcation line, and the adjustment force gradually increases from 0 to the maximum value T of water pressure adjustment MAX 。 3. The monitoring and operation and maintenance system applied to the agricultural automatic irrigation equipment according to claim 2, wherein, The maximum injection water pressure in the shortening area is adjusted to T0 + T MAX ; The maximum injection water pressure in the elongation area is adjusted to T0 - T MAX .

4. The monitoring and operation and maintenance system applied to the agricultural automatic irrigation equipment according to claim 1 or 2, characterized in that, The adjustment intensity of the injection water pressure gradually increases from 0 to the maximum water pressure adjustment value T MAX and the growth is equal, that is, the growth value is calculated according to the following formula: T 增 = |T MAX - T0| ÷ (90° ÷ Δs); where Δs is the single deflection angle of the rotary nozzle.

5. The monitoring and operation and maintenance system applied to the agricultural automatic irrigation equipment according to claim 1, characterized in that, The control unit calculates the coverage angle C of the water-deficient area S1 according to the wind force value For of the wind force sensing unit; The coverage angle C is calculated according to the following formula: A = For × β, where β is a unit conversion coefficient; The coverage angle C is symmetrically distributed on both sides of the symmetric dividing line.

6. The monitoring and operation and maintenance system applied to agricultural automatic irrigation equipment according to claim 5, characterized in that, The control unit obtains a water-rich area S2 on the opposite side of the water-deficient area S1; And further adjusts the water pressure of the water-rich area S2. Among them, the maximum water pressure of the water-rich area S2 is calculated according to the following formula: Wherein, Dis is the distance between two adjacent groups of rotary sprinklers; For is the wind force value sensed by the wind force sensing unit, is the unit conversion coefficient.

7. The monitoring and operation and maintenance system applied to agricultural automatic irrigation equipment according to claim 6, characterized in that, The adjustment intensity of the injection water pressure within the multi-water region S2 gradually increases from TC to the maximum water pressure adjustment value T MD with equal growth; Where TC is the water pressure value corresponding to the coverage angle C; The growth of the injection water pressure in the multi-water area S2 is T MD增 = |T MD - TC| ÷ (C ÷ Δs).

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