Monitoring operation and maintenance system applied to agricultural automatic irrigation equipment

Abstract

The invention is applicable to the field of agricultural irrigation systems, and provides a monitoring operation and maintenance system applied to agricultural automatic irrigation equipment, which comprises a water pressure regulation and control unit, a detection unit and a control unit, and is characterized in that the water pressure regulation and control unit is controlled to regulate water pressure according to intervals divided by the water pressure regulation and control unit and the detection unit; according to the adjusting mode, the water pressure boundary divides the irrigation area into a shortened area and an extended area, and when the rotating angle of the rotating spray head enters the shortened area, the control unit controls the water pressure adjusting and controlling unit to increase the spraying water pressure; when the rotating angle of the rotating nozzle enters the extension area, the control unit controls the water pressure regulation and control unit to reduce the spraying water pressure; the adjusting force of the rotating angle is gradually increased from the position of the water pressure boundary to the position of the symmetrical boundary, and the adjusting mode of the areas on the two sides of the water pressure boundary is symmetrical, so that in the irrigation process, changes of the wind direction and the wind power can be sensed, and the water pressure value in the rotating spray irrigation process of the rotating spray head is adjusted; and the influence of wind power on the atomized water flow coverage range is reduced.

Description

Technical Field

[0001] The present invention relates to the field of agricultural irrigation systems, and in particular to a monitoring and operation system for agricultural automated irrigation equipment. Background Art

[0002] The application of automated irrigation systems in agriculture not only improves agricultural production efficiency, but also contributes to the modernization of the agricultural economy. At present, automated irrigation systems mainly include sprinkler irrigation, drip irrigation, infiltration irrigation and other irrigation types.

[0003] Among them, for the automatic sprinkler irrigation system, rows and columns of equally spaced rotating sprinklers are set up on the ground to be irrigated; the atomized water flow sprayed by the rotating sprinklers irrigates within a predetermined range. Among them, the biggest problem encountered during the use of sprinkler irrigation is that it is used in a windy environment, which will lead to a blind area of ​​​​spraying.

[0004] In summary, the prior art obviously has inconveniences and defects in practical use, so it is necessary to improve it. Summary of the invention

[0005] In view of the above-mentioned defects, the purpose of the present invention is to provide a monitoring and operation and maintenance system for agricultural automated irrigation equipment, which can sense the changes in wind direction and wind force during the irrigation process, adjust the water pressure value during the rotation of the rotary sprinkler head, and reduce the impact of wind force on the coverage range of the atomized water flow.

[0006] In order to achieve the above-mentioned purpose, the present invention provides a monitoring and operation and maintenance system for agricultural automated irrigation equipment, including: a water pressure regulating unit, which adjusts the water pressure of the water flow sprayed by a rotating nozzle; a detection unit, which includes an angle detection unit for detecting the rotation angle of the rotating nozzle, 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, which obtains the wind force and wind direction of the environment in which the equipment detected by the detection unit is located, and plans to generate a symmetrical dividing line parallel to the wind direction and a symmetrical dividing line parallel to the wind direction. A vertical water pressure dividing line; the control unit controls the water pressure regulating unit to regulate the water pressure according to the interval divided by the two; the regulating method is that the water pressure dividing line divides the irrigation area into a shortening area and an extension area, when the rotation angle of the rotary nozzle enters the shortening area, the control unit controls the water pressure regulating unit to increase the spraying water pressure; when the rotation angle of the rotary nozzle enters the extension area, the control unit controls the water pressure regulating unit to reduce the spraying water pressure; the regulating force of the rotation angle gradually increases from the water pressure dividing line position to the symmetrical dividing line position, and the regulating method for the areas on both sides of the water pressure dividing line is symmetrical.

[0007] According to the monitoring and operation system for agricultural automated irrigation equipment of 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 regulation value T MAX ; Maximum water pressure adjustment value T MAX Calculate according to the following formula: T MAX =For×α, where α is the adjustment coefficient; the rotation angle is from the water pressure dividing line position to the symmetrical dividing line position, and the adjustment force gradually increases from 0 to the maximum water pressure adjustment value T MAX .

[0008] According to the monitoring and operation system for agricultural automated irrigation equipment of the present invention, the maximum pressure of the spray water in the shortening zone is adjusted to T0+T MAX The maximum water pressure in the elongation zone is adjusted to T0-T MAX .

[0009] According to the monitoring and operation system for agricultural automated irrigation equipment of the present invention, the adjustment strength of the spray water pressure is gradually increased from 0 to the maximum water pressure adjustment value T MAX The growth rate is equal to that of 增 =|T MAX -T0|÷(90°÷Δs); where Δs is the single deflection angle of the rotating nozzle.

[0010] According to the monitoring and operation system for agricultural automated irrigation equipment of the present invention, the control unit calculates the coverage angle C of the water-deficient area S1 according to the wind value For of the wind 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 symmetry dividing line.

[0011] According to the monitoring and operation system for agricultural automated irrigation equipment of the present invention, the control unit obtains the 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, wherein 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 rotating nozzles; For is the wind force value sensed by the wind force sensing unit, is the unit conversion factor.

[0012] According to the monitoring and operation system for agricultural automated irrigation equipment of the present invention, the adjustment strength of the spray water pressure in the water-rich area S2 is gradually increased from TC to the maximum water pressure adjustment value T MD The growth rate is equal; wherein TC is the water pressure value corresponding to the coverage angle C; and the growth rate of the spray water pressure in the water-rich area S2 is, T MD增=|T MD -TC|÷(C÷Δs).

[0013] The present invention provides a monitoring and operation system for agricultural automated irrigation equipment, comprising: a water pressure regulating unit, which regulates the water pressure of a water flow sprayed by a rotating nozzle; a detection unit, which comprises an angle detection unit for detecting the rotation angle of the rotating nozzle, 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, which acquires the wind force and wind direction of the environment in which the equipment detected by the detection unit is located, and plans to generate a symmetrical dividing line parallel to the wind direction and a water pressure perpendicular to the wind direction. The control unit controls the water pressure control unit to adjust the water pressure according to the interval 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, and when the rotation angle of the rotating nozzle enters the shortening area, the control unit controls the water pressure control unit to increase the spray water pressure; when the rotation angle of the rotating nozzle enters the elongation area, the control unit controls the water pressure control unit to reduce the spray water pressure; the rotation angle gradually increases from the water pressure dividing line position to the symmetrical dividing line position, and the adjustment method is symmetrical for the areas on both sides of the water pressure dividing line. The present invention can sense the changes in wind direction and wind force during the irrigation process, adjust the water pressure value during the rotating spray irrigation of the rotating nozzle, and reduce the influence of wind force on the coverage range of the atomized water flow. BRIEF DESCRIPTION OF THE DRAWINGS

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

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

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

[0017] In the figure, 1-symmetry dividing line, 2-water pressure dividing line, 11-shortening zone, 12-elongation zone, S1-water-deficient zone, S2-water-abundant zone. DETAILED DESCRIPTION

[0018] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with 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 intended to limit the present invention.

[0019] The present invention provides a monitoring and operation system for agricultural automated irrigation equipment, and the monitoring and operation system for agricultural automated irrigation equipment includes:

[0020] The water pressure regulating unit regulates the water pressure of the water flow sprayed by the rotary sprinkler. The water pressure regulating unit may adopt an electrically controlled regulating valve (the regulating valve is connected to the control unit signal), which is installed on the supply pipeline of the rotary sprinkler. It should be explained in detail that a regulating valve is installed on the supply pipeline (branch) of each rotary sprinkler of the entire irrigation system.

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

[0022] A control unit (portable computer) is used to obtain the wind force and wind direction of the environment in which the device detected by the detection unit is located, and to generate a symmetrical 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 control 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 irrigation area into a shortened area 11 (the coverage area of ​​the atomized water flow in the shortened area 11 is reduced by the wind, and the area of ​​the shortened area 11 shown in the figure is reduced from the dotted area to the realized area) and an extended area 12 (the coverage area of ​​the atomized water flow in the extended area 12 is increased by the wind, and the area of ​​the extended area 12 shown in the figure is increased from the dotted area to the realized area). When the rotation angle of the rotary nozzle enters the shortened area 11, the control unit controls the water pressure control unit to increase the spray water pressure to overcome the wind effect and ensure the coverage range of the atomized water flow; when the rotation angle of the rotary nozzle enters the extended area 12, the control unit controls the water pressure control unit to reduce the spray water pressure to reduce the overlap of the irrigation area of ​​adjacent rotary nozzles.

[0024] See also Figure 2 The rotation angle increases gradually from the water pressure dividing line 2 to the symmetrical dividing line 1, and the adjustment mode is symmetrical for the areas on both sides of the water pressure dividing line 2. Figure 2As shown, when the rotary nozzle rotates from angle A to angle B, in order to overcome the effect of wind, the water pressure control unit adjusts the water pressure to gradually increase; when the rotary nozzle rotates from angle B to angle A', the water pressure control unit adjusts the water pressure to gradually restore to the initial size; similarly, when the rotary nozzle rotates from angle A' to angle B', in order to reduce the diffusion of the atomized water flow, the water pressure control unit adjusts the water pressure to gradually decrease (lower than the initial water pressure); when the rotary nozzle rotates from angle B' to angle A, the water pressure control unit adjusts the water pressure to gradually restore to the initial size.

[0025] The specific water pressure adjustment strength 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] Maximum water pressure adjustment T MAX Calculate according to the following formula: T MAX =For×α, where α is the adjustment coefficient;

[0027] The rotation angle is from the water pressure dividing line 2 position to the symmetrical dividing line 1 position, and the adjustment force is gradually increased from 0 to the maximum water pressure adjustment value T MAX .

[0028] The maximum water pressure adjustment value T to be obtained MAX Then the water pressure in the corresponding interval is further calculated, and the maximum water pressure in the shortened area 11 is adjusted to T0+T MAX The maximum water pressure in the elongation zone 12 is adjusted to T0-T MAX , where T0 is the initial water pressure (the water pressure of the rotating nozzle at angle A or angle A'). The adjustment force of the spray water pressure gradually increases from 0 to the maximum water pressure adjustment value T MAX The growth rate is equal (for example, when the rotating nozzle rotates from angle A to angle B, the water pressure value increases from T0 to T0+T MAX ), that is, the growth 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 rotating nozzle, and the calculated T 增 Refers to the water pressure adjustment after a single deflection of the rotary sprinkler. For example, when the rotary sprinkler rotates from angle A to angle B, the water pressure control unit adjusts the water pressure from T0 to T0+T MAX , the water pressure of the rotating sprinkler increases by one T for each single deflection 增 Value (i.e. T0+T 增). On the other hand, when the rotating sprinkler head rotates from angle B to angle A', the water pressure of the rotating sprinkler head decreases by one T for each single deflection. 增 Value (i.e. T0+T MAX -T 增 ). When the rotating sprinkler head rotates from angle A' to angle B', the water pressure of the rotating sprinkler head decreases by one T for each single deflection. 增 Value (ie T0-T 增 ); When the rotating sprinkler head rotates from angle B' to angle A, the water pressure of the rotating sprinkler head increases by one T for each single deflection. 增 Value (i.e. T0+T 增 ).

[0030] At the same time, the atomized water flow sprayed by the rotating nozzle will form a water-deficient area S1 and a water-rich area S2 under the action of wind pressure (the formation of the water-deficient area S1 and the water-rich area S2 is due to the atomized water flow being bent by the wind pressure, resulting in an error with the original spray position, see Figure 1 , the arrow in the figure indicates the direction of wind pressure), in this regard, in order 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. wind pressure). The larger the wind force value For, the greater the deviation of the atomized water flow from the original trajectory, which further leads to 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, the angle value on one side of the symmetry dividing line 1 is C / 2.

[0034] See also Figure 1 and Figure 3 , the control unit obtains the abundant water area S2 on the opposite side of the water-deficient area S1. The abundant water area S2 actually appears naturally under the influence of wind pressure. However, in the present application, the control unit controls the coverage angle of the abundant water 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 abundant water area S2. The purpose of the above adjustment is to make the water-deficient area S1 of the rotary sprinkler at a certain position be supplemented by the abundant water area S2 of the rotary sprinkler at an adjacent position, so as to ensure that the degree of lack of irrigation range is reduced.

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

[0036] Wherein, 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 factor.

[0037] The regulation intensity of the spray water pressure in the water-rich area S2 gradually increases from TC to the maximum water pressure regulation value T MD (express Figure 3 In the figure, the growth of the injection range from the C position to the C' position is equal;

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

[0039] The growth of the injection water pressure in the water-rich area S2 is, MD增 =|T MD -TC|÷(C÷Δs). That is, when the rotating sprinkler head rotates from position C (or angle) to position C' (or angle), the water pressure of the rotating sprinkler head increases by one T for each single deflection. MD增 (ie TC+T MD增 ), on the contrary, when the rotating sprinkler head rotates from the C' position (or angle) to the C" position (or angle), the water pressure of the rotating sprinkler head decreases by one T for each single deflection. MD增 (ie TC-T MD增 ).

[0040] Of course, the present invention may have many other embodiments. Without departing from the spirit and essence of the present invention, those skilled in the art may make various corresponding changes and modifications based on the present invention, but these corresponding changes and modifications should all fall within the scope of protection of the claims attached to the present invention.

Claims

1. A monitoring and operation system for agricultural automated irrigation equipment, characterized in that: include: A water pressure regulating unit, which regulates the water pressure of the water jetted by the rotating nozzle; A detection unit, comprising an angle detection unit for detecting the rotation angle of the rotating nozzle, 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, which obtains the wind force and wind direction of the environment in which the device detected by the detection unit is located, and plans to generate a symmetrical 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 control unit to adjust the water pressure according to the interval 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 nozzle enters the shortening area, the control unit controls the water pressure regulating unit to increase the spraying water pressure; when the rotation angle of the rotary nozzle enters the elongation area, the control unit controls the water pressure regulating unit to reduce the spraying water pressure. The adjustment force of the rotation angle gradually increases from the water pressure dividing line position to the symmetrical dividing line position, and the adjustment method of the areas on both sides of the water pressure dividing line is symmetrical.

2. The monitoring and operation system for agricultural automated irrigation equipment according to claim 1 is characterized in that: 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 ; Maximum water pressure adjustment T MAX Calculate according to the following formula: T MAX =For×α, where α is the adjustment coefficient; The rotation angle is from the water pressure dividing line position to the symmetrical dividing line position, and the adjustment force is gradually increased from 0 to the maximum water pressure adjustment value T MAX .

3. The monitoring and operation system for agricultural automated irrigation equipment according to claim 2 is characterized in that: The maximum water pressure in the shortened area is adjusted to T0+T MAX The maximum water pressure in the elongation zone is adjusted to T0-T MAX .

4. The monitoring and operation system for agricultural automated irrigation equipment according to claim 1 or 2, characterized in that: The adjustment strength of the spray water pressure gradually increases from 0 to the maximum water pressure adjustment value T MAX The growth rate is equal to that of the other, that is, the growth rate 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 nozzle.

5. The monitoring and operation system for agricultural automated 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 the unit conversion coefficient; The coverage angle C is symmetrically distributed on both sides of the symmetry dividing line.

6. The monitoring and operation system for agricultural automated 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; The water pressure of the water-rich area S2 is further adjusted, wherein 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 rotating nozzles; For is the wind force value sensed by the wind force sensing unit, is the unit conversion factor.

7. The monitoring and operation system for agricultural automated irrigation equipment according to claim 6, characterized in that: The regulation intensity of the spray water pressure in the water-rich area S2 gradually increases from TC to the maximum water pressure regulation value T MD The growth rates are equal; Wherein, TC is the water pressure value corresponding to the coverage angle C; The growth of the injection water pressure in the water-rich area S2 is, MD增 =|T MD -TC|÷(C÷Δs).

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