CN215012296U

CN215012296U - Water-saving irrigation system for agriculture and forestry

Info

Publication number: CN215012296U
Application number: CN202120645584.3U
Authority: CN
Inventors: 王明华; 胡海洋; 蔡涵; 赵德龙; 唐女智; 曾倩; 彭志浪
Original assignee: University of South China
Current assignee: University of South China
Priority date: 2021-03-30
Filing date: 2021-03-30
Publication date: 2021-12-07
Anticipated expiration: 2031-03-30

Abstract

The agriculture and forestry water-saving irrigation system comprises a waterway pipe network, an electromagnetic valve A, an electromagnetic valve B, a wireless temperature and humidity sensor, a controller and a PC machine; the waterway pipe network is tiled and buried in the soil and comprises a main pipe and a plurality of branch pipes which are vertically connected to the main pipe and are arranged in parallel at intervals; the electromagnetic valve A is arranged at the joint of each branch pipe and the main pipe; the electromagnetic valve B is arranged at the joint of each water outlet and the branch pipe; the wireless temperature and humidity sensor is buried in soil right below each spray head; the PC is connected with the signal input port of the controller in a communication mode. The utility model discloses can effectively avoid the excessive irrigation to waste water resource according to the accurate volume of calculating irrigation of the crop variety of difference and the soil moisture of difference, still can forecast the time that starts irrigation next time according to current soil temperature, guarantee irrigation system's ageing, realize the science regulation and control and the management of crops irrigation.

Description

Water-saving irrigation system for agriculture and forestry

Technical Field

The utility model relates to a sprinkling irrigation system field, especially an agriculture and forestry water-saving irrigation system.

Background

The sustainable utilization of water resources is a strategic problem of the economic and social development of China, and the core is to improve the water utilization efficiency. Although China is a big traditional agricultural country, the popularization rate of the intelligent agricultural irrigation system is not high due to scientific and technological constraints and economic influences.

Nowadays, economic crops are more and more popular, but the economic crops have strict environmental requirements and need to control various environmental parameters very accurately. The data shows that 70% of the commercial crop growing areas across the country are still irrigated by rough ditches. On one hand, the utilization rate of the fresh water resources of the irrigation mode is low, and on the other hand, the irrigation mode cannot provide irrigation with timeliness and precision according to the temperature and humidity conditions of soil and the requirements of crop varieties, so that the yield of certain precious plants and crops is reduced due to the fact that timely and proper water is not obtained.

Therefore, to realize agricultural modernization, it is very necessary to improve the flexibility, accuracy, timeliness and convenience of the irrigation system.

Disclosure of Invention

The utility model aims at overcoming the not enough of prior art, and provide an agriculture and forestry water-saving irrigation system, it helps realizing scientific regulation and control and management that crops irrigated.

The technical scheme of the utility model is that: the agriculture and forestry water-saving irrigation system comprises a waterway pipe network, an electromagnetic valve A, an electromagnetic valve B, a wireless temperature and humidity sensor, a controller and a PC machine; the waterway pipe network is tiled and embedded in soil and comprises a main pipe and a plurality of branch pipes which are vertically connected to the main pipe and are arranged in parallel at intervals, wherein one end of the main pipe is provided with a water inlet, each branch pipe is provided with a plurality of water outlets at intervals, the water inlets are communicated with a water source with constant water pressure, and the water outlets are provided with spray heads; the electromagnetic valve A is arranged at the joint of each branch pipe and the main pipe to control the on-off of liquid flow in each branch pipe; the electromagnetic valve B is arranged at the joint of each water outlet and the branch pipe so as to control the on-off of liquid flow in each water outlet; the wireless temperature and humidity sensors are buried in the soil right below each spray head to detect temperature and humidity data of the soil; a signal input port of the controller is in communication connection with all the wireless temperature and humidity sensors, and a signal output port of the controller is in communication connection with the electromagnetic valve A and the electromagnetic valve B; the PC is connected with the signal input port of the controller in a communication mode.

The utility model discloses further technical scheme is: all the water outlets on the water pipeline network are arranged in a rectangular array; the distance between a water outlet on any branch pipe and the nearest water outlet on the adjacent branch pipe is m, and the distance between the water outlet on the same branch pipe and the nearest water outlet on the same branch pipe is n; the value range of m is 3-5 m, and the value range of n is 3-5 m.

The utility model discloses still further technical scheme is: m is 4m and n is 4 m.

The utility model discloses a further technical scheme is: and a signal input port of the controller is in communication connection with all the wireless temperature and humidity sensors through a Zigbee wireless network.

The utility model discloses a further technical scheme is: the solar energy power supply device also comprises a solar energy power supply device; the solar power supply device comprises a solar panel, a charge and discharge management module and a storage battery; the solar panel is electrically connected with the charging and discharging management module, the charging and discharging management module is electrically connected with the storage battery, and the storage battery is electrically connected with the electromagnetic valve, the wireless temperature and humidity sensor and the controller respectively.

Compared with the prior art, the utility model have following advantage:

1. divide planting district into a plurality of little regions through the shower nozzle in the water route pipe network, can survey soil humiture alone to every little region to start irrigation alone, provide the structural basis for irrigation system's flexibility management.

2. The irrigation quantity can be accurately calculated according to different crop varieties and different soil humidity, water resource waste caused by excessive irrigation is effectively avoided, the time for starting irrigation next time can be predicted according to the current soil temperature, the timeliness of an irrigation system is guaranteed, and scientific regulation, control and management of crop irrigation are realized.

The invention is further described below with reference to the figures and examples.

Drawings

Fig. 1 is a schematic view of a communication connection relationship between each component in the present invention;

FIG. 2 is a schematic diagram of the electrical connection relationship between the components of the present invention;

FIG. 3 is a schematic view of a waterway pipe network and its installation components from a top view;

fig. 4 is a sectional view a-a of fig. 3.

Detailed Description

Example 1:

as shown in fig. 1-4, the agricultural and forestry water-saving irrigation system comprises a waterway pipe network, an electromagnetic valve a21, an electromagnetic valve B22, a wireless temperature and humidity sensor 3, a controller 4 and a PC 5.

The water route pipe network tiling is buried underground in soil, and it includes house steward 11 and perpendicular many parallel interval arrangements's on house steward 11 branch pipe 12, and house steward 11's one end is equipped with water inlet 111, and the interval is equipped with a plurality of delivery ports on every branch pipe 12, and water inlet 111 communicates with invariable hydraulic water source (for example running water), installs shower nozzle 121 on the delivery port.

An electromagnetic valve A21 is arranged at the joint of each branch pipe 12 and the main pipe 11 to control the on-off of the liquid flow in each branch pipe 12. An electromagnetic valve B22 is arranged at the joint of each water outlet and the branch pipe 12 to control the on-off of the liquid flow in each water outlet.

The wireless temperature and humidity sensor 3 is buried in the soil right below each nozzle 121 to detect temperature and humidity data of the soil.

The signal input port of the controller 4 is in communication connection with all the wireless temperature and humidity sensors 3, and the signal output port of the controller 4 is in communication connection with the solenoid valve A21 and the solenoid valve B22.

The PC 5 is communicatively connected to a signal input port of the controller 4.

Preferably, the agriculture and forestry water-saving irrigation system also comprises a solar power supply device. The solar power supply device comprises a solar panel 61, a charge and discharge management module 62 and a storage battery 63. The solar panel 61 is electrically connected with the charge and discharge management module 62, the charge and discharge management module 62 is electrically connected with the storage battery 63, and the storage battery 63 is electrically connected with the electromagnetic valve 2, the wireless temperature and humidity sensor 3 and the controller 4 respectively.

Preferably, a signal input port of the controller 4 is in communication connection with all the wireless temperature and humidity sensors 3 through a Zigbee wireless network, the Zigbee wireless network includes peripheral Zigbee modules and a central Zigbee module, the peripheral Zigbee modules correspond to each wireless temperature and humidity sensor 3 one to one, and the central Zigbee module is arranged between the peripheral Zigbee modules and the controller 4, and is used for summarizing soil temperature and humidity data transmitted by all the peripheral Zigbee modules, and transmitting the soil temperature and humidity data to the controller 4. The Zigbee technology is dedicated to low-data-rate data transmission, and has the advantages of low power consumption, low cost and simple networking.

Preferably, the embedding depth of the spray head 121 in the soil is consistent with the depth of the root system of the crops in the soil.

Preferably, the embedding depth of the wireless temperature and humidity sensor 3 in the soil is consistent with the depth of the root system of the crops in the soil.

Preferably, all the water outlets on the water pipeline network are arranged in a rectangular array. The distance between the water outlet on any branch pipe 12 and the nearest water outlet on the adjacent branch pipe 12 is m, and the distance between the water outlet on the same branch pipe 12 and the nearest water outlet is n. m is 4m and n is 4 m.

Preferably, the controller 4 adopts a stm32 singlechip, the controller 4 plays a vital role in the agriculture and forestry water-saving irrigation system, on one hand, the controller 4 is used for controlling the opening and closing of the electromagnetic valve A21 and the electromagnetic valve B22 so as to control the opening and closing of sprinkling irrigation; on the other hand, the controller 4 is an important hub for connection between the wireless temperature/humidity sensor 3 and the PC 5.

Brief description the utility model discloses a theory of operation: the laying area of the waterway pipe network is divided into a plurality of rectangular small areas, each small area is internally provided with a spray head 121 and a wireless temperature and humidity sensor 3, and the spray heads 121 and the wireless temperature and humidity sensors 3 are arranged at the central positions of the small areas. For the convenience of management, the same crop is planted in each small area (the crops planted in each small area can be different). The PC 5 stores the crop variety planted in each small area, the optimal soil humidity value corresponding to various crops and the soil moisture evaporation speed corresponding to different soil temperatures.

After the system is started, the wireless temperature and humidity sensor 3 detects the soil humidity and the soil temperature of the small area (once detection for 6 h) at regular time, the detected data are transmitted to the controller 4, and the controller 4 summarizes the data at the same moment and transmits the summarized data to the PC 5.

On the one hand, the PC 5 calculates the irrigation quantity required at present for each small area according to the current soil moisture of each small area and the requirement of the planted crops on the irrigation quantity. Then, control information is transmitted to the controller 4, and the controller 4 controls the solenoid valve a21 and the solenoid valve B22 on the corresponding water path pipe network path to open for a certain time, so that a certain amount of water is sprayed out from the spray head 121 (the amount of water sprayed out from the spray head 121 in a unit time is constant), and the soil humidity of the target small area is improved to the optimal soil humidity value corresponding to the crop variety.

On the other hand, the PC 5 predicts the time for starting irrigation next time according to the current soil temperature of each small area and the corresponding relationship between the soil temperature and the soil moisture evaporation rate, and starts irrigation again when the soil humidity in the target small area is lower than 0.85S (S is the optimal soil humidity value corresponding to the crops planted in the target area) along with the time, so that the timeliness of the irrigation system is ensured.

Claims

1. Agriculture and forestry water-saving irrigation system, characterized by: the system comprises a waterway pipe network, an electromagnetic valve A, an electromagnetic valve B, a wireless temperature and humidity sensor, a controller and a PC (personal computer); the waterway pipe network is tiled and embedded in soil and comprises a main pipe and a plurality of branch pipes which are vertically connected to the main pipe and are arranged in parallel at intervals, wherein one end of the main pipe is provided with a water inlet, each branch pipe is provided with a plurality of water outlets at intervals, the water inlets are communicated with a water source with constant water pressure, and the water outlets are provided with spray heads; the electromagnetic valve A is arranged at the joint of each branch pipe and the main pipe to control the on-off of liquid flow in each branch pipe; the electromagnetic valve B is arranged at the joint of each water outlet and the branch pipe so as to control the on-off of liquid flow in each water outlet; the wireless temperature and humidity sensors are buried in the soil right below each spray head to detect temperature and humidity data of the soil; a signal input port of the controller is in communication connection with all the wireless temperature and humidity sensors, and a signal output port of the controller is in communication connection with the electromagnetic valve A and the electromagnetic valve B; the PC is connected with the signal input port of the controller in a communication mode.

2. The agricultural and forestry water-saving irrigation system according to claim 1, wherein: all the water outlets on the water pipeline network are arranged in a rectangular array; the distance between a water outlet on any branch pipe and the nearest water outlet on the adjacent branch pipe is m, and the distance between the water outlet on the same branch pipe and the nearest water outlet on the same branch pipe is n; the value range of m is 3-5 m, and the value range of n is 3-5 m.

3. The agricultural and forestry water-saving irrigation system according to claim 2, wherein: m is 4m and n is 4 m.

4. The agricultural and forestry water-saving irrigation system according to claim 3, wherein: and a signal input port of the controller is in communication connection with all the wireless temperature and humidity sensors through a Zigbee wireless network.

5. The agricultural and forestry water-saving irrigation system according to claim 4, wherein: the solar energy power supply device also comprises a solar energy power supply device; the solar power supply device comprises a solar panel, a charge and discharge management module and a storage battery; the solar panel is electrically connected with the charging and discharging management module, the charging and discharging management module is electrically connected with the storage battery, and the storage battery is electrically connected with the electromagnetic valve, the wireless temperature and humidity sensor and the controller respectively.