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CN-121986645-A - Water-saving irrigation device for vegetable seedling cultivation

CN121986645ACN 121986645 ACN121986645 ACN 121986645ACN-121986645-A

Abstract

The invention discloses a water-saving irrigation device for cultivating vegetable seedlings, which relates to the technical field of water-saving irrigation and comprises a support horizontally installed on a fixed ground, wherein the water-saving irrigation device is used for enabling the device to monitor the water level condition in real time through a water distribution mechanism, improving the water-saving property, realizing the water-saving capability of the device, enabling the device to stir the water and the fertilizer in real time through the water distribution mechanism, avoiding water and fertilizer deposition, improving the practicability, realizing the high-efficiency irrigation capability of the device, solving the problem of insufficient water supply monitoring of the traditional device, dynamically calculating the mixing uniformity coefficient through a rotating speed adjusting module based on the standard deviation of the water and fertilizer concentration of a plurality of layers of measuring points, establishing a relation model of rotating speed and uniformity by combining historical data, realizing self-adaptive adjustment of stirring rotating speed, automatically reducing the speed and saving energy after reaching uniform standards, and accurately improving the stirring strength when the water and fertilizer mixing quality is ensured, and the whole energy efficiency and the intelligent level of the device are improved.

Inventors

  • LIN LEI
  • Zhu Guangchu
  • HE XIAOJIA
  • LI SHENGFENG

Assignees

  • 南华自然之星农业科技有限公司

Dates

Publication Date
20260508
Application Date
20260313

Claims (8)

  1. 1. The water-saving irrigation device for cultivating vegetable seedlings comprises a bracket (1) horizontally installed on the fixed ground, a water distribution barrel (2) is installed and fixed at the rear of the bracket (1), a water inlet (3) is formed in one side of the front end face of the bracket (1), a water pump (4) is fixedly installed in the middle of the bracket (1), a water outlet (5) is formed in the top end of the bracket (1), and the water pump (4) is mutually communicated with the water distribution barrel (2), the water inlet (3) and the water outlet (5), and is characterized in that a water distribution mechanism is arranged on the water distribution barrel (2); A controller is further arranged on the outer side of the water distribution barrel (2), and a pretreatment module and a rotating speed adjusting module are arranged in the controller; The preprocessing module is used for sequencing acquired data, calculating the mean value and standard deviation of the acquired data at the same moment, setting a reasonable fluctuation range of the data, comparing the acquired data with the fluctuation range, marking and counting the number of abnormal values, judging that the data are abnormal and re-detecting if the proportion of the abnormal values exceeds 30 percent, eliminating the abnormal values if the proportion of the abnormal values does not exceed, and re-calculating the mean value of the residual data to be used as effective data at the moment; The rotating speed adjusting module is used for distributing measuring points according to upper, middle and lower layers in the water distribution barrel before stirring to obtain initial water and fertilizer concentration data and calculate standard deviation of the initial water and fertilizer concentration data, obtaining measuring point data again and calculating new standard deviation after stirring is started and operated for a certain time, calculating a mixing uniformity coefficient according to the difference of the two standard deviations, reducing the stirring rotating speed to save energy when the mixing uniformity coefficient reaches an industrial grade standard, and dynamically adjusting the rotating speed of the variable frequency motor according to a rotating speed and mixing uniformity relation model established according to historical data and the difference of real-time data and a target value if the mixing uniformity coefficient does not reach the industrial grade standard.
  2. 2. The water-saving irrigation device for vegetable seedling cultivation according to claim 1, wherein the data analysis step of the preprocessing module is as follows: m1 for the corresponding items collected at the same time Mean of individual data And standard deviation And taking the calculated average value And standard deviation Performing corresponding item acquisition data fluctuation range Comparing the acquired data of the corresponding item with the fluctuation range of the corresponding item, marking the data of the corresponding item which is not in the fluctuation range as abnormal value, and recording the quantity of the abnormal value ; M2 if (M2) Judging that the collected data is abnormal, and re-detecting data, if so Removing the abnormal value, and averaging the corresponding item detection data remained after removing the abnormal value And taking the calculated average value As corresponding item data detected at the corresponding time.
  3. 3. The water-saving irrigation device for vegetable seedling cultivation according to claim 1, wherein the data analysis step of the rotation speed adjusting module is as follows: n1, arranging a plurality of evenly distributed measuring points in the water distribution barrel according to the upper, middle and lower liquid level layers respectively, acquiring water and fertilizer concentration data before stirring, and calculating an initial standard deviation Start stirring and run time Then, measuring point data are acquired again, and standard deviation after stirring is calculated Further calculate the mixing uniformity coefficient , Is the total volume of the materials, Is the circulation flow of the water pump (4); n2 when When the stirring speed is reduced to save energy, if And dynamically adjusting the rotating speed of the variable frequency motor according to the rotating speed and mixing uniformity relation model established by the historical data, so that the real-time mixing uniformity approaches to the target value.
  4. 4. The water-saving irrigation device for vegetable seedling cultivation according to claim 1, wherein the water distribution mechanism comprises an ultrasonic water level detector (6) which is arranged and fixed in the middle of the top surface of the water distribution barrel (2).
  5. 5. The water-saving irrigation device for vegetable seedling cultivation according to claim 4, wherein a water bucket cover (7) is arranged on one side of the top surface of the water distribution bucket (2), the water bucket cover (7) is fixed on a water bucket opening (8) through screw threads in a screwing mode, and screw threads are arranged inside and outside the water bucket opening (8).
  6. 6. The water-saving irrigation device for vegetable seedling cultivation according to claim 5, wherein a motor (9) is coaxially fixedly connected to the middle part of the top surface of the water bucket cover (7), and the rotating end of the lower end of the motor (9) penetrates through the water bucket cover (7) and is connected to the plug-in port (10) in a plug-in manner.
  7. 7. The water-saving irrigation device for vegetable seedling cultivation according to claim 6, wherein the plug connector (10) is rotatably connected to the middle part of the rotating frame (11), and the stirring shaft (12) is coaxially fixedly connected to the lower end of the plug connector (10).
  8. 8. The water-saving irrigation device for vegetable seedling cultivation according to claim 7, wherein a plurality of stirring plates (13) are fixedly connected to the lower end of the outer side surface of the stirring shaft (12) in a spiral arrangement manner, and a plurality of turbulence holes are formed in the stirring plates (13).

Description

Water-saving irrigation device for vegetable seedling cultivation Technical Field The invention relates to the technical field of water-saving irrigation, in particular to a water-saving irrigation device for vegetable seedling cultivation. Background In vegetable seed seedling, irrigation of water and fertilizer plays a vital role, and not only is the survival rate of seedling related, but also the production cost is related; The existing water and fertilizer irrigation is mainly realized by matching the irrigation device with a spraying device, wherein the irrigation device is mainly used for mixing various medicaments, solvents and fertilizers by a water pump and then uniformly and quantitatively spraying out, but the existing irrigation device is mainly used for carrying out water outlet calculation by a pipeline flowmeter, and because the existing irrigation device is provided with an internal circulation system, when a water outlet valve is closed, the medicaments, solvents and fertilizers need to be mixed in the device in a converging way, and at the moment, the flowmeter arranged at a water outlet can not detect the mixed water condition during the internal circulation of the device, so that monitoring loopholes occur and water waste is easy to cause; accordingly, the present invention improves upon existing devices in view of the above problems. Disclosure of Invention The invention aims to solve the defects in the prior art, and provides a water-saving irrigation device for vegetable seedling cultivation. In order to achieve the aim, the water-saving irrigation device for vegetable seedling cultivation comprises a bracket horizontally installed and fixed on the ground, wherein a water distribution barrel is installed and fixed at the rear of the bracket, a water inlet is formed in one side of the front end face of the bracket, a water pump is installed and fixed in the middle of the bracket, a water outlet is formed in the top end of the bracket, the water pump is communicated with the water distribution barrel, the water inlet and the water outlet, and a water distribution mechanism is arranged on the water distribution barrel; the outside of the water distribution barrel is also provided with a controller, and a pretreatment module and a rotating speed adjusting module are arranged in the controller; The preprocessing module is used for sequencing acquired data, calculating the mean value and standard deviation of the acquired data at the same moment, setting a reasonable fluctuation range of the data, comparing the acquired data with the fluctuation range, marking and counting the number of abnormal values, judging that the data are abnormal and re-detecting if the proportion of the abnormal values exceeds 30 percent, eliminating the abnormal values if the proportion of the abnormal values does not exceed, and re-calculating the mean value of the residual data to be used as effective data at the moment; The rotating speed adjusting module is used for distributing measuring points according to upper, middle and lower layers in the water distribution barrel before stirring to obtain initial water and fertilizer concentration data and calculate standard deviation of the initial water and fertilizer concentration data, obtaining measuring point data again and calculating new standard deviation after stirring is started and operated for a certain time, calculating a mixing uniformity coefficient according to the difference of the two standard deviations, reducing the stirring rotating speed to save energy when the mixing uniformity coefficient reaches an industrial grade standard, and dynamically adjusting the rotating speed of the variable frequency motor according to a rotating speed and mixing uniformity relation model established according to historical data and the difference of real-time data and a target value if the mixing uniformity coefficient does not reach the industrial grade standard. Preferably, the data analysis steps of the preprocessing module are as follows: m1 for the corresponding items collected at the same time Mean of individual dataAnd standard deviationAnd taking the calculated average valueAnd standard deviationPerforming corresponding item acquisition data fluctuation rangeComparing the acquired data of the corresponding item with the fluctuation range of the corresponding item, marking the data of the corresponding item which is not in the fluctuation range as abnormal value, and recording the quantity of the abnormal value; M2 if (M2)Judging that the collected data is abnormal, and re-detecting data, if soRemoving the abnormal value, and averaging the corresponding item detection data remained after removing the abnormal valueAnd taking the calculated average valueAs corresponding item data detected at the corresponding time. Preferably, the data analysis of the rotational speed adjustment module comprises the following steps: n1, arranging a plurality of evenly distrib