CN114158461B

CN114158461B - Irrigation equipment is collected to intelligence rainwater

Info

Publication number: CN114158461B
Application number: CN202111567800.8A
Authority: CN
Inventors: 刘晓初; 胡彬; 梁忠伟; 萧金瑞; 陈修杰; 马尧; 邝超鹏; 郑佳鹏
Original assignee: Guangzhou University
Current assignee: Guangzhou University
Priority date: 2021-12-21
Filing date: 2021-12-21
Publication date: 2023-02-28
Anticipated expiration: 2041-12-21
Also published as: CN114158461A

Abstract

The invention relates to the technical field of rainwater collection and irrigation, in particular to an intelligent rainwater collection and irrigation device. The rainwater collecting mechanism comprises a water storage tank; the top of the water storage tank is provided with a tank cover driven by a motor; the top end of the box cover is provided with an air humidity sensor, and the air humidity sensor is connected with a first controller; the top end of the side wall of the water storage tank is provided with a photoelectric switch; the photoelectric switch is respectively connected with the first controller and the motor; the irrigation mechanism comprises a valve; the side wall of the water storage tank is provided with a water outlet, the water outlet is connected with an irrigation water pipe through the valve, a water level sensor is arranged at the water outlet, a soil humidity sensor is arranged on one side of the valve, and the water level sensor, the soil humidity sensor and the valve are all connected with a second controller. This irrigation equipment is collected to intelligence rainwater can carry out accurate irrigation with the rainwater of collecting, simple structure, and application scope is wide.

Description

Irrigation equipment is collected to intelligence rainwater

Technical Field

The invention relates to the technical field of rainwater collection and irrigation, in particular to an intelligent rainwater collection and irrigation device.

Background

As is well known, water resources are important basic resources for national economy and social sustainable development, are sources of life, production essentials and ecological bases, and have no significance for human survival and development. At present, each country almost faces a serious water resource crisis, but China is one of the fastest-developing main economic bodies in the world, and the key for relieving the development crisis of China is to improve the utilization efficiency of water resources. Along with the acceleration of the urbanization process, the water consumption of cities is gradually increased, so that the scarce water resource is more deficient, and one of the relieving methods for the problem of the shortage of the water resource of the cities is to collect and recycle the precipitation.

The mode that irrigation was collected to present rainwater sets up the mechanism that catchments at the bottom of the earth mostly, and this kind of mode rainwater collection volume is big, but its structure is complicated and the scale is huge, and manufacturing cost is high, and supporting irrigation facilities lays the pipeline irrigation in inside mostly in addition, and pipeline structure is complicated, uses the limitation big, waters in a flexible way to the regional unable small-scale afforestation, and the rainwater of collecting can not carry out accurate irrigation, and the result of use is unsatisfactory. In addition, for areas which do not always have rainfall, if the rainwater collection amount is not enough, manual irrigation is needed. Most of the existing rainwater collecting devices are in a single mode, automation and semi-automation are not well combined, target crops lack water when the rainwater collecting amount is insufficient, and the aim of enabling the target crops to grow smoothly cannot be achieved.

Disclosure of Invention

The invention aims to provide an intelligent rainwater collecting and irrigating device which can automatically and accurately irrigate collected rainwater, can flexibly irrigate small-scale greening areas, and is simple in structure, free of limitation of use environments and wide in use range.

The invention provides an intelligent rainwater collecting and irrigating device, which comprises a rainwater collecting mechanism and an irrigating mechanism,

the rainwater collecting mechanism comprises a water storage tank; a motor-driven box cover is arranged at the top of the water storage box and is in sliding connection with the water storage box; the top end of the box cover is provided with an air humidity sensor, and the air humidity sensor is connected with a first controller; the top end of the side wall of the water storage tank is provided with a photoelectric switch, and the photoelectric switch is positioned below the tank cover; the photoelectric switch is respectively connected with the first controller and the motor;

the irrigation mechanism comprises a valve; the water storage tank lateral wall is equipped with the delivery port, the delivery port passes through valve and irrigation water piping connection, delivery port department is equipped with level sensor, valve one side is equipped with soil moisture sensor, level sensor soil moisture sensor the valve all is connected with the second controller.

Furthermore, an isolation chamber is arranged in the water storage tank, the motor is arranged in the isolation chamber, a gear shaft is arranged at the bottom of the tank cover, the gear shaft penetrates through the top end of the isolation chamber to be connected with an output shaft of the motor in a meshed mode, a storage battery is arranged inside the isolation chamber and connected with the motor, and a plurality of drain holes are formed in the bottom of the isolation chamber.

Furthermore, the photoelectric switch device comprises four photoelectric switches symmetrically distributed on two sides of the gear shaft, wherein two adjacent photoelectric switches are arranged on each side of the gear shaft, and the two symmetrical photoelectric switches are connected into a group.

Further, the inside filter screen that is equipped with of water storage box, the filter screen with the connection can be dismantled to the water storage box inside wall.

Further, the top of the box cover is provided with a solar panel, and the solar panel is connected with the storage battery.

Further, a switch is arranged on the side wall of the water storage tank and is respectively connected with the storage battery and the motor.

Furthermore, be equipped with solar panel on the valve, the last LED lamp that is equipped with of solar panel, the LED lamp with the second controller is connected.

Further, the lateral wall of the water storage tank is provided with a water inlet, and the water inlet is connected with a water inlet pipe through a water pump.

Furthermore, the upper part of the side wall of the water storage tank is provided with an overflow hole.

Further, the inner wall of the water storage tank and the bottom of the tank cover are coated with heat insulation coatings.

Compared with the prior art, the invention has the following advantages:

(1) The intelligent rainwater collecting and irrigating device provided by the invention can automatically collect rainwater, accurately irrigate the collected rainwater, flexibly irrigate small-scale green areas, has a simple structure, is not influenced by external environments such as regions and weather, and has a wide application range.

(2) According to the intelligent rainwater collecting and irrigating device provided by the invention, the photoelectric switch and the air humidity sensor of the rainwater collecting mechanism transmit the identified light information, air humidity information and the like to the first controller, and then the first controller controls the power on and off of the motor, so that the opening and closing of the box cover are controlled. When raining, the air humidity sensor and the photoelectric switch transmit the identified information to the first controller for analysis and processing, and then the motor is controlled to drive the box cover to open; when the rain stops, the air humidity sensor and the photoelectric switch transmit the identified information to the first controller for analysis and processing, and then the motor is controlled to drive the tank cover to be closed, so that the automatic collection of the rainwater in the water storage tank is realized.

(3) According to the intelligent rainwater collecting and irrigating device, the water level sensor arranged at the water outlet of the water storage tank can detect whether the water in the water storage tank is enough for irrigation; the probe of the soil humidity sensor is arranged to extend into the soil of the target plant, so that the soil humidity around the target plant can be detected. When the humidity of the soil around the target plant is lower than a preset value, and the water level sensor detects that the water in the water storage tank is enough for irrigation, the second controller controls the valve to be opened to start irrigation; when the humidity of the soil around the target plant is higher than the preset value, the second controller controls the valve to be closed, and irrigation is finished, so that accurate irrigation of the target plant is achieved.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.

Fig. 1 is a schematic structural diagram of an intelligent rainwater collection and irrigation device in embodiment 1 of the invention;

fig. 2 is a schematic structural view of a water storage tank in the intelligent rainwater collection and irrigation device in embodiment 1 of the invention;

fig. 3 is a top view of a water storage tank in the intelligent rainwater collection and irrigation device in embodiment 1 of the invention;

fig. 4 is a schematic view of a connection structure of a box cover and a motor in the intelligent rainwater collecting and irrigating device according to embodiment 1 of the present invention;

fig. 5 is a schematic structural view of an irrigation mechanism of the intelligent rainwater collection and irrigation device according to embodiment 1 of the invention;

fig. 6 is a top view of the intelligent rainwater collection and irrigation device of embodiment 1 of the invention with the box cover fully opened;

FIG. 7 is a top view of the intelligent rainwater collection and irrigation device of embodiment 1 of the present invention with the cover closed

Fig. 8 is a schematic structural diagram of an intelligent rainwater collection and irrigation device in embodiment 2 of the invention;

fig. 9 is a schematic structural view of a water storage tank in the intelligent rainwater collection and irrigation device in embodiment 2 of the invention;

fig. 10 is a schematic circuit diagram of a rainwater collection mechanism of the intelligent rainwater collection and irrigation device according to embodiment 1 of the invention;

fig. 11 is a simplified circuit diagram of the circuit (1) in fig. 10 according to embodiment 1 of the present invention;

fig. 12 is a simplified circuit diagram of the circuit (1) in fig. 10 according to embodiment 1 of the present invention;

fig. 13 is a simplified circuit diagram of the circuit (2) in fig. 10 according to embodiment 1 of the present invention;

fig. 14 is a simplified circuit diagram of the circuit (2) in fig. 10 according to embodiment 1 of the present invention;

fig. 15 is a schematic circuit diagram of an irrigation mechanism of the intelligent rainwater collection and irrigation device according to embodiment 1 of the invention.

Fig. 16 is a schematic circuit diagram of an irrigation mechanism of the intelligent rainwater collection and irrigation device according to embodiment 2 of the invention.

Description of reference numerals: 1-water storage tank, 2-tank cover, 201-first photoelectric switch, 202-second photoelectric switch, 203-third photoelectric switch, 204-fourth photoelectric switch, 3-isolation chamber, 301-water drain hole, 4-gear shaft, 5-motor, 6-round hole, 7-storage battery, 8-integrated box, 9-first solar panel, 10-switch, 11-water inlet, 12-water outlet, 13-water inlet pipe, 14-irrigation water pipe, 15-soil humidity sensor, 16-water outlet pipe, 17-valve, 18-water level sensor, 19-second solar panel, 20-LED lamp, 21-overflow hole, 22-filter screen, 23-water pump.

Detailed Description

The technical solutions of the present invention will be described clearly and completely with reference to the following embodiments, and it should be apparent that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", may explicitly or implicitly include one or more of the described features. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise. Furthermore, the terms "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Example 1

An intelligent rainwater collecting and irrigating device is shown in figures 1 and 2.

The rainwater collecting mechanism comprises a water storage tank 1, a tank cover 2 is arranged at the top of the water storage tank 1, and the tank cover 2 is connected with the water storage tank 1 in a sliding mode. As shown in fig. 2, an isolation chamber 3 is fixed on the upper portion of the inner side wall of the water storage tank 1, a motor 5 is installed on the inner side wall of the isolation chamber 3, a gear shaft 4 is installed at the bottom of the tank cover 2, a top plate of the isolation chamber 3 is provided with a round hole 6, and the gear shaft 4 penetrates through the round hole 6 to be meshed with an output shaft of the motor 5, as shown in fig. 4. The bottom of the isolation chamber 3 is provided with a plurality of drain holes 301, so that water accumulated in the isolation chamber 3 is prevented, and the water entering the isolation chamber 3 directly falls into the water storage tank 1 through the drain holes 301. The inside wall of the isolation chamber 3 is fixed with a storage battery 7, the storage battery 7 is connected with the motor 5, electric energy is provided for the motor 5, and the storage battery 7 and the motor 5 are both subjected to waterproof treatment. The bottom of the box cover 2 and the inner wall of the water storage box 1 are coated with the thermal insulation coating, so that the water loss caused by overhigh external temperature can be prevented.

First solar panel 9 is installed at 2 tops of case lid, and first solar panel 9 is connected with battery 7, charges battery 7. 9 one sides of first solar panel are equipped with

integrated box

8, and 8 internally mounted of integrated box have air humidity transducer and first controller. The air humidity sensor is connected with the first controller, and the air humidity sensor converts the moisture detected in the air into an output signal and transmits the output signal to the first controller for analysis and processing. The air humidity sensor identifies whether rainfall occurs according to the change of the air humidity. The air humidity sensor is connected to the motor 5. A photoelectric switch is arranged at the top end of the side wall of the water storage tank 1, and the photoelectric switch is composed of a light sensor and an optical fiber controller and can analyze and process detected light signals. Totally, four photoelectric switches are respectively a first photoelectric switch 201, a second photoelectric switch 202, a third photoelectric switch 203 and a fourth photoelectric switch 204, and are symmetrically arranged on two sides of the isolation chamber 3, wherein the first photoelectric switch 201, the second photoelectric switch 202, the third photoelectric switch 203 and the fourth photoelectric switch 204 are all positioned on the edge of the water storage tank 1 and at the bottom of the tank cover 2, so as to ensure that the tank cover 2 can perfectly cover the top of the water storage tank 1. Wherein the first 201 and third 203 opto-electronic switches are adjacent and the second 202 and fourth 204 opto-electronic switches are adjacent. Two symmetrical photoelectric switches are connected into a group, the first photoelectric switch 201 and the second photoelectric switch 202 are electrically connected into a group, and the third photoelectric switch 203 and the fourth photoelectric switch 204 are electrically connected into a group.

The first photoelectric switch 201, the second photoelectric switch 202, the third photoelectric switch 203 and the fourth photoelectric switch 204 are all connected with a first controller, and are used for controlling the on-off of the motor 5 under the combined action of the first photoelectric switch, the second photoelectric switch, the third photoelectric switch and the fourth photoelectric switch with the air humidity sensor, so that the sliding motion of the box cover 2 is controlled. The four photoelectric switches are matched in pairs, wherein the two photoelectric switches control the box cover to be opened, and the other two photoelectric switches control the box cover 2 to be closed. The box cover 2 has the following four working states: 1. closed state when not raining; 2. closed state in rainy days; 3. open state when not raining; 4. the opening state when not raining needs to adopt 4 lines simultaneously to ensure that the box cover can work smoothly under any one of the above 4 states, so four photoelectric switches are adopted for control.

The switch 10 is arranged on the upper portion of the outer side wall of the water storage tank 1, the switch 10 is respectively connected with the storage battery 7 and the motor 5, and the switch 10 of the embodiment is a button switch. As shown in figure 3, a replaceable filter screen 22 is arranged in the water storage tank 1, and the filter screen 22 is fixedly connected with the inner side wall of the water storage tank 1. The filter screen 22 is located at the top end of the water storage tank 1, and the filter screen 22 is flush with the top end of the isolation chamber 3. The filter screen 22 can prevent sundries from falling in, and can be replaced in time when the sundries on the filter screen 22 are too much.

The irrigation mechanism comprises a valve 17, and the valve 17 adopts an electric regulating valve. The lower part of the side wall of the water storage tank 1 is provided with a water inlet 11 and a water outlet 12, the water inlet 11 is connected with a water inlet pipe 13, the water outlet 12 is provided with a water outlet pipe 16, and the water outlet pipe 16 is connected with an irrigation water pipe 14 through a valve 17, as shown in figure 5. A water level sensor 18 is arranged at one end of the water outlet pipe 16 close to the water storage tank 1, the water level sensor 18 is arranged at the vertex position of the side wall of the water outlet pipe 16 close to one end of the water storage tank 1, and one end of the water outlet pipe 16, which is provided with the water level sensor 18, extends into the water outlet 12, so that the water level sensor 18 can detect the water level conveniently. The level sensor 18 is used to detect whether there is sufficient water in the reservoir 1 for irrigation. The valve 17 is far away from one side of the water storage tank 1 and is provided with a soil humidity sensor 15, a probe of the soil humidity sensor 15 is placed in soil of a target plant and used for detecting soil humidity around the target plant, and whether the plant needs to be irrigated or not is judged according to the soil humidity. The soil humidity sensor 15 and the water level sensor 18 are both connected with the second controller. The second controller is installed inside the valve 17, and the second controller controls the opening and closing of the valve 17 after analyzing and processing the signals transmitted by the soil moisture sensor 15 and the water level sensor 18. The top end of the valve 17 is provided with a second solar panel 19, the second solar panel 19 is provided with a red LDE lamp 20, the LDE lamp 20 can play a warning role, and the LED lamp 20 is connected with a second controller. When the water level sensor 18 detects that there is no water in the reservoir 1, the second controller controls the LED lamp 20 to light up, reminding to add water to the reservoir 1. The second solar panel 19 provides power for the water level sensor 18, the soil moisture sensor 15, the valve 17 and the LED lamp 20.

The circuit connection schematic diagram of the rainwater collection mechanism is shown in fig. 10. When raining, the air humidity reaches a fixed value, the output of the air humidity sensor is 1 after identification, and the corresponding action is switched to be a circuit (1) in the first circuit as a circuit, as shown in fig. 11; when it is not raining, the air humidity is lower than a certain fixed value, the output of the air humidity sensor is 0 after identification, and the action is switched to the line (2) in the second circuit as a circuit, as shown in fig. 13. When raining or not raining, the motor 5 performs corresponding power-on and power-off actions according to the table 1, so that the box cover 2 is opened and closed. The switch 10 on the side wall of the water storage tank 1 has the function of switching the circuit between the circuit two and the circuit one, when the LED lamp 20 flashes to give an alarm, the circuit two can be selected through the operation switch, the button is pressed down to enable the circuit to be ignited, the button is pressed down, the circuit two is electrified, the motor 5 rotates, the tank cover 2 is opened, and when the tank cover 2 is completely opened, the button is loosened, and manual water adding can be carried out at the moment. Subsequently, the switch 10 is pushed further, the motor 5 is energized, the lid 2 is rotated further for the closing operation, and when the lid 2 is fully closed, the button is released and reset to the first position of the circuit.

Table 1 motor circuit truth table

Note: 1, 2, 3 and 4 in the table respectively represent a first photoelectric switch, a second photoelectric switch, a third photoelectric switch and a fourth photoelectric switch; the value of the power-on of the storage battery is 1, the value of the power-off of the storage battery is 0, and the storage battery is always in the power-on state, so that the value of the power-on value of the storage battery is 1 in the table 1; the air humidity sensor is assigned to a 0 wiring path (2) when not raining, and is assigned to a 1 wiring path (1) when raining; the first photoelectric switch and the second photoelectric switch are initially in a non-light state (the light is shielded by the box cover), the values of power-on and power-off are respectively assigned to 1, the values of light and power-off are respectively assigned to 0, and the < - > represents a dynamic change process, for example, 0-1 represents the process of converting power-off into power-on; the third photoelectric switch and the fourth photoelectric switch are initially in a state of no light (the light is shielded by the box cover), the values of the power failure and the power on are all assigned to 0, the values of the light and the power on are all assigned to 1, and the < - > represents a dynamic change process, for example, 0-1 represents the conversion from the power off to the power on; the motor is assigned 1 when powered on and 0 when powered off.

The details in table 1 are presented below:

1. when raining, case lid 2 open mode specifically is:

the trigger condition that case lid 2 opened is that air humidity is greater than the preset value of air humidity sensor, rains promptly, and the circuit switches into circuit (1) in the circuit of fig. 10 one, the circuit diagram in fig. 11 promptly, is the on state when first photoelectric switch 201, second photoelectric switch 202 do not have illumination, so motor 5 drives case lid 2 rotatory during this, experiences following two stages: in the first stage, the box cover 2 is in a half-open state, the first photoelectric switch 201 is exposed to light, the first photoelectric switch 201 is in a power-off state when the first photoelectric switch 201 is illuminated, and a circuit diagram at the time is shown in fig. 12; the second stage case lid 2 is full open state, and the relative position of case lid 2 and water storage tank 1 is as shown in fig. 6 (for the sake of clarity show the position relation of water storage tank 1 and case lid 2, the first solar panel 9 of structure and integrated box 8 have been omitted in fig. 6), and at this moment, first photoelectric switch 201 and second photoelectric switch 202 all have illumination, and for the outage state, motor 5 stall, case lid 2 stops the rotation, and case lid 2 opens completely, and circuit (1) is the open circuit state this moment.

2. When not raining, case lid 2 closed state specifically does:

when the cover 2 is fully opened, the third and fourth

photoelectric switches

203 and 204 are fully exposed to light, as shown in fig. 6. The third and fourth

photoelectric switches

203 and 204 are set to be in the on state when light is present and in the off state when no light is present. After the cover 2 is opened, the control circuit of the third photoelectric switch 203 and the fourth photoelectric switch 204 is needed to control the motor 5 to continue to rotate to drive the cover 2 to close, and the relative position between the cover 2 and the water storage tank 1 in the closing process is shown in fig. 7 (for clearly showing the position relation between the water storage tank 1 and the cover 2, the first solar panel 9 and the integration box 8 are omitted in fig. 7); when the air humidity is less than the preset value of the air humidity sensor, i.e. it is not raining, the circuit is switched to the circuit (2) in the first circuit of fig. 10, i.e. the circuit diagram in fig. 13. The closure 2 is closed through the following two phases: in the first stage of closing the box cover 2, at this time, the third photoelectric switch 203 is not illuminated, and the power-on state is changed into the power-off state, and the circuit diagram at this time is shown in fig. 14; the second stage case cover 2 is completely closed, at this time, neither the third photoelectric switch 203 nor the fourth photoelectric switch 204 is illuminated, the power-on state is converted into the power-off state, and at this time, the circuit (2) is disconnected. After the box cover 2 is opened in the rainy day to be closed in the rainy day, the line is (2), the first photoelectric switch 201 and the second photoelectric switch 202 are both in the non-illumination and power-on states, and the third photoelectric switch 203 and the fourth photoelectric switch 204 are both in the non-illumination and power-off states.

Through the analysis, it can be seen that four photoelectric switches are required, the first photoelectric switch 201 is connected with the second photoelectric switch 202, and the control box cover 2 is opened and symmetrically arranged on two sides of the gear shaft 4 (in this embodiment, on two sides of the isolation chamber); the third photoelectric switch 203 and the fourth photoelectric switch 204 are connected with the control box cover 2 to close, and are symmetrically arranged on two sides of the gear shaft 4 (in the embodiment, on two sides of the isolation chamber).

As shown in fig. 15, when the water level sensor 18 detects that water is in the water storage tank 1 and the humidity of the soil around the target plant is lower than a preset value, the water level sensor 18 switches on the circuit (1), the valve 17 is opened, and irrigation is started; when the humidity of the soil around the target plant is higher than a certain preset value, the valve 17 is closed, and the irrigation is finished. When level sensor 18 detects that there is not enough water in the water storage box 1, level sensor 18 switch-on circuit (2), LED lamp 20 scintillation is reminded, and after artifical adding water to the water storage box, level sensor 18 detected the water of water storage box when enough irrigating, and valve 17 is opened, irrigates. The truth table for the irrigation mechanism when energized is shown in table 2.

TABLE 2 irrigation organization energization truth table

Note: the power-on assignment in table 2 is 1 and the power-off assignment is 0; the value of water in the water storage tank is 1, and the value of no water is 0; the valve opening assignment is 1 and the valve closing assignment is 0.

The water in the cistern among the intelligent rainwater collection irrigation mechanism that this embodiment provided has two sources: firstly, the rainwater is collected, secondly, the manual work is added water, can carry out full-automatic and semi-automatic irrigation and switch. The problem of current rainwater collection device only single mode, can not be with automatic and semi-automatic combination is solved, target crop can not lack of water yet when rainwater collection volume is not enough, can let target crop grow smoothly.

Example 2

An intelligent rainwater collecting and irrigating device, as shown in fig. 8 and 9, is substantially the same as embodiment 1, except that: a water inlet 11 is formed in one side of the side wall of the water storage tank 1, opposite to the water outlet 12, a water pump 23 is installed at the position of the water inlet 11, the water pump 23 is connected with a water inlet pipe 13, and the water pump 23 is connected with a second controller. The water pump 23 in this embodiment can be installed according to the user's needs.

In the embodiment, the circuit diagram of the irrigation mechanism is shown in fig. 16, when the water level sensor 18 detects that water exists in the water storage tank 1, and when the humidity of the soil around the target plant is lower than a certain preset value, the water level sensor 18 is connected with the circuit (1), the valve 17 is opened, and irrigation is started; when the humidity of the soil around the target plant is higher than a certain preset value, the valve 17 is closed, and the irrigation is finished. When level sensor 18 detects that there is not enough water in the water storage box 1, level sensor 18 switch-on circuit (2), LED lamp 20 scintillation is reminded, 23 circular telegrams of water pump start, draw water from the outside and get into in the water storage box 1, when the water level does not cross level sensor 18, level sensor 18 switch-on circuit (1), LED lamp 20 stops the scintillation, 23 outage of water pump are closed, reach and draw water-irrigate the equal effect of supply and demand, when detecting that the water of water storage box 1 is enough irrigated, valve 17 is opened, irrigate. The truth table for the irrigation mechanism when energized is shown in table 3.

TABLE 3 irrigation organization energization truth table

Note: the power-on assignment in table 3 is 1 and the power-off assignment is 0; the value of water in the water storage tank is 1, and the value of no water is 0; the valve opening assignment is 1, and the valve closing assignment is 0; the water pump is assigned a value of 1 when the water pump is turned on and 0 when the water pump is turned off.

The water in the cistern among the intelligent rainwater collection irrigation mechanism that this embodiment provided has three sources: firstly, the rainwater is collected, secondly the manual work adds water, thirdly the water pump is automatic draws water, can carry out full-automatic and semi-automatic irrigation and switch. The problem of current rainwater collection device only single mode, can not combine with semi-automatic automatically is solved, target crop can not lack of water yet when rainwater collection volume is not enough, can let target crop grow smoothly.

The circuit diagrams provided in fig. 10-16 of the drawings of the present specification are provided only for the purpose of clearly illustrating the operational principles of the rainwater collection mechanism and the irrigation mechanism, and do not represent the circuit diagrams during actual installation.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. An intelligent rainwater collecting and irrigating device is characterized by comprising a rainwater collecting mechanism and an irrigating mechanism,

the irrigation mechanism comprises a valve; a water outlet is formed in the side wall of the water storage tank and is connected with an irrigation water pipe through the valve, a water level sensor is arranged at the water outlet, a soil humidity sensor is arranged on one side of the valve, and the water level sensor, the soil humidity sensor and the valve are all connected with a second controller;

an isolation chamber is arranged in the water storage tank, the motor is arranged in the isolation chamber, a gear shaft is arranged at the bottom of the tank cover, the gear shaft penetrates through the top end of the isolation chamber and is connected with an output shaft of the motor in a meshed mode, a storage battery is arranged in the isolation chamber and is connected with the motor, and a plurality of drain holes are formed in the bottom of the isolation chamber;

the photoelectric switch comprises four photoelectric switches symmetrically distributed on two sides of a gear shaft, wherein two adjacent photoelectric switches are arranged on each side of the gear shaft, and the two mutually symmetrical photoelectric switches are connected into a group;

the four photoelectric switches are respectively a first photoelectric switch, a second photoelectric switch, a third photoelectric switch and a fourth photoelectric switch; the first photoelectric switch is adjacent to the third photoelectric switch, and the second photoelectric switch is adjacent to the fourth photoelectric switch; the two symmetrical photoelectric switches are connected into a group, the first photoelectric switch and the second photoelectric switch are electrically connected into a group, and the third photoelectric switch and the fourth photoelectric switch are electrically connected into a group;

the control circuit is formed by connecting a storage battery, an air humidity sensor, a first controller, a photoelectric switch and a motor in series, wherein the photoelectric switch comprises a circuit (1) photoelectric switch and a circuit (2) photoelectric switch, and the circuit (1) photoelectric switch and the circuit (2) photoelectric switch are connected in parallel; the circuit (1) is characterized in that a photoelectric switch is formed by connecting a first photoelectric switch and a second photoelectric switch in parallel; the photoelectric switch of the circuit (2) is formed by connecting a third photoelectric switch and a fourth photoelectric switch in parallel;

the four photoelectric switches are adopted to enable the box cover to have the following working modes:

1. when raining, case lid open mode specifically does:

the trigger condition that the case lid was opened is that air humidity is greater than air humidity sensor's default, rains promptly, and the circuit switches into circuit (1), is the on-state when first photoelectric switch and second photoelectric switch do not have illumination, and the motor drives the case lid rotation at this time, experiences following two stages: in the first stage, the box cover is in a half-open state, the first photoelectric switch is exposed to light and becomes a power-off state, the first photoelectric switch in the circuit (1) is in the power-off state at the moment, the first controller is not connected with the first photoelectric switch, the second photoelectric switch is in the power-on state, the first controller is connected with the second photoelectric switch, and the motor rotates to drive the box cover to rotate; the second stage case cover is in a full-open state, the first photoelectric switch and the second photoelectric switch are both illuminated at the moment, the second stage case cover is in a power-off state, the motor stops rotating, the case cover is completely opened, and the circuit (1) is in a circuit-breaking state at the moment;

2. when not raining, case lid closed condition specifically is:

when the box cover is completely opened, the third photoelectric switch and the fourth photoelectric switch are completely exposed to light, the third photoelectric switch and the fourth photoelectric switch are set to be in a power-on state when light exists, and the power-off state when no light exists; after the box cover is opened, the motor is controlled to continuously rotate to drive the box cover to be closed by means of a third photoelectric switch and a fourth photoelectric switch control circuit; when the air humidity is less than the preset value of the air humidity sensor, namely, the rain does not occur, the circuit is switched to a circuit (2), and the box cover is closed to pass through the following two stages: in the first stage of closing the box cover, the third photoelectric switch is not illuminated at the moment, the power-on state is converted into the power-off state, the third photoelectric switch in the circuit (2) is in the power-off state at the moment, the first controller is not connected with the third photoelectric switch, the fourth photoelectric switch is in the power-on state, the first controller is connected with the fourth photoelectric switch, and the motor rotates to drive the box cover to rotate; the second stage case cover is completely closed, at the moment, the third photoelectric switch and the fourth photoelectric switch are not illuminated, the power-on state is converted into the power-off state, the motor stops rotating, and at the moment, the circuit (2) is in an open circuit state;

after the box cover is opened in the rainy day to the process of closing in the rainy day, the circuit (2) is arranged at the moment, the first photoelectric switch and the second photoelectric switch are in the non-illumination and power-on states, the third photoelectric switch and the fourth photoelectric switch are in the non-illumination and power-off states, the box cover is closed, and the motor does not rotate.

2. The intelligent rainwater collecting and irrigating device according to claim 1, wherein a filter screen is arranged inside the water storage tank, and the filter screen is detachably connected with the inner side wall of the water storage tank.

3. The intelligent rainwater collection and irrigation device according to claim 1, wherein a solar panel is disposed on the top of the box cover and connected to the storage battery.

4. The intelligent rainwater collection and irrigation device according to claim 1, wherein a switch is arranged on the side wall of the water storage tank, and the switch is respectively connected with the storage battery and the motor.

5. The intelligent rainwater collection and irrigation device according to claim 1, wherein a solar panel is disposed on said valve, an LED lamp is disposed on said solar panel, and said LED lamp is connected to said second controller.

6. The intelligent rainwater collection and irrigation device as recited in claim 1, wherein said side wall of said water storage tank is provided with a water inlet, and said water inlet is connected with a water inlet pipe through a water pump.

7. The intelligent rainwater collection and irrigation device as recited in claim 1, wherein an overflow hole is formed in the upper portion of the side wall of the water storage tank.

8. The intelligent rainwater collection and irrigation device as recited in claim 1, wherein both the inner wall of the reservoir and the bottom of the tank cover are coated with a thermal barrier coating.