CN111296386A - A kind of agricultural spraying device, Internet of things monitoring system and method thereof - Google Patents

Abstract

The invention discloses an agricultural spraying device, an Internet of Things monitoring system and a method thereof, wherein the spraying device comprises a tank body, a spray rod, a matching pesticide bottle and an agricultural material bag, and a top shell of the tank body is provided with an injection Water outlet, drug injection port, material injection port, and first RF module; the bottom of the tank body is provided with a liquid outlet; the diameter of the water injection port is larger than that of the drug injection port; the diameter of the material injection port is larger than that of the drug injection port A water injection flowmeter controlled by an ARM chip is provided under the water injection port; a drug injection flowmeter and a drug injection solenoid valve controlled by an ARM chip are provided under the injection port; A material cavity; an RFID read head controlled by an ARM chip is also arranged under the injection port and the material injection port; a liquid outlet flowmeter and a liquid outlet solenoid valve controlled by an ARM chip are arranged under the liquid outlet; the pesticide bottle The mouth of the bottle is provided with a first RFID label, and the mouth of the agricultural material bag is provided with a second RFID label.

Description

A kind of agricultural spraying device, Internet of things monitoring system and method thereof

technical field

The invention relates to the technical field of agricultural equipment, in particular to an agricultural spraying device, an Internet of Things monitoring system and a method thereof.

Background technique

At present, the prevention and control of agricultural and forestry diseases and insect pests mainly relies on the chemical control of pesticides. However, the unreasonable use of pesticides will cause serious pollution to plants and soil, and endanger human health through the biological chain. At present, a prominent problem in agricultural pest control is the high dosage of pesticides and the low utilization rate.

Except for some special low-concentration powders, granules, etc., which can be used directly, most of the formulations need to be diluted with water, or mud powder, fine sand, etc., and prepared to a certain concentration or multiple before use. In the production process of pesticide application in our country, pesticides are basically prepared by hand, and there are large errors in the dosage and mixing uniformity of pesticides. Moreover, farmers traditionally focus on treatment and light prevention, and most of them are untrained and use insurance drugs. Some farmers are eager to control insects and diseases, and they are imprecise in the varieties and dosages of drugs instructed by the agricultural technology and plant protection departments. They arbitrarily increase the varieties and dosages when applying pesticides, resulting in a rapid rise in crop resistance and a vicious circle.

With the development of society, the state's investment in pest control and its environmental protection has also been continuously strengthened. China has clearly put forward the requirement of vigorously developing professional unified prevention and control, doing a good job in scientific use of drugs, reducing the amount of drug use, and improving the utilization rate of pesticides. In order to achieve the above-mentioned national requirements, standardized drug use is a key content in precision agriculture. Only by mastering the accurate formulation of pesticide concentrations can the effectiveness of pesticides be fully exerted, human and animal poisoning accidents and plant phytotoxicity can be avoided, and environmental pollution can be reduced. Received the expected control effect.

Therefore, in view of the above problems, the present invention proposes an agricultural spraying device, an Internet of Things monitoring system and a method thereof. The agricultural management department is responsible for adopting the technical means of the Internet of Things to incorporate crop spraying into scientific and networked management. The spraying drug networking system monitors the entire spraying operation and improves the intelligence and information level of crop spraying technology.

SUMMARY OF THE INVENTION

The purpose of the present invention is to provide an agricultural spraying device, an Internet of Things monitoring system and a method thereof in view of the defects of the prior art. The agricultural management department is responsible for adopting the technical means of the Internet of Things to incorporate crop spraying into a scientific and networked system. It has established a spraying drug networking system to monitor the entire spraying operation and improve the intelligence and informatization level of crop spraying technology.

In order to achieve the above purpose, the present invention adopts the following technical solutions:

An agricultural spraying device, comprising a tank body, a spray rod, matching pesticide bottles and agricultural material bags, and a top shell of the tank body is provided with a water injection port, a drug injection port, a material injection port, and a first RF module; The bottom of the tank body is provided with a liquid outlet; the diameter of the water injection port is larger than the diameter of the drug injection port; the diameter of the material injection port is larger than the diameter of the drug injection port; the water injection port controlled by an ARM chip is provided under the water injection port A flowmeter; a drug injection flowmeter and a drug injection solenoid valve controlled by an ARM chip are arranged under the drug injection port; a feeding cavity is provided under the material injection port; the drug injection port and the material injection port are also provided with An RFID read head controlled by an ARM chip; a liquid outlet flowmeter and a liquid outlet solenoid valve controlled by an ARM chip are arranged under the liquid outlet; a first RFID label is arranged on the mouth of the pesticide bottle, and the mouth of the agricultural material bag is provided with a first RFID tag. with a second RFID tag;

The first RF module is used for two-way communication with the farmland; the RFID read head is used to identify the first RFID tag and the second RFID tag, the drug injection solenoid valve is used to control the opening and closing of the drug injection port, and the The injection flowmeter is used to measure the amount of pesticide entering the tank; the water injection flowmeter is used to measure the amount of water entering the tank; the feed cavity is used to make the medicine in the agricultural bag enter the tank through the feed cavity ; The liquid outlet solenoid valve is used to control the opening and closing of the liquid outlet, and the liquid outlet flowmeter is used to measure the amount of pesticide flowing out of the tank;

When the RFID reader recognizes the mouth of the pesticide bottle with the required first RFID tag or the mouth of the agricultural material bag with the required first RFID tag, the pesticide in the pesticide bottle or the medicine in the agricultural material bag will pass through the injection port, injection The outlet enters the tank body; after receiving the liquid discharge command, the liquid outlet flowmeter measures the amount of pesticide flowing out of the liquid outlet in real time. When the amount of pesticide flowing out reaches the standard, the liquid outlet solenoid valve is closed and the liquid outlet is stopped.

Compared with the prior art, the technical effect achieved in the present invention is:

1. An RFID tag is set on the pesticide bottle, and an RFID read head is set on the device to realize the identification of pesticides, and at the same time, it supports liquid/solid pesticides, and the feeding amount/feeding amount is automatically matched, so as to prevent problems such as entering expired drugs and overdose;

2. Periodically and continuously read during the medicine feeding process, which can prevent users from accidentally making a mistake in the medicine bottle or medicine bag;

3. Job records can be viewed and uploaded, and data sets can be updated;

4. The agricultural management department is responsible for the use of Internet of Things technology to incorporate crop spraying into scientific and networked management, establish a spraying drug networking system, monitor the entire spraying operation, and improve the intelligence and information of crop spraying technology. level.

Description of drawings

1 is an exploded view of the structure of an agricultural spraying device provided in Embodiment 1;

2 is a structural diagram of an agricultural spraying device provided in Embodiment 1;

3 is a schematic circuit diagram of an agricultural spraying device provided in Embodiment 1;

4 is a schematic diagram of the injection tray and its related structure provided in Embodiment 1;

5 is a schematic circuit diagram of an Internet of Things monitoring system based on an agricultural spraying device provided in Embodiment 2;

6 is a flowchart of a method for monitoring the Internet of Things based on an agricultural spraying device provided in Embodiment 3;

Among them, 1. water injection port cover; 2. water injection port; 3. water injection indicator light; 4. material injection port cover; 5. material injection port; 6. material injection indicator light; 7. injection port cover; 8. injection 9. Injection indicator light; 10. Top shell of spray device tank; 11. Touch screen; 12. Device power main switch; 13. Speaker hole; 14. First RF module antenna; 15. Water injection flowmeter; 1601. Feeding cavity; 1602. Limit plate; 1603. Limit switch; 1604. Feeding tray; 1605. Medicine material; 1606. Shaft; 17. Stepper motor; 18. Medicine injection flowmeter; 19. Medicine injection solenoid valve ; 20. RFID read head; 21. ARM chip; 22. Tank body; 23. Outlet; 24. Outlet flowmeter; 25. Outlet solenoid valve; 26. Electric pump; 27. Stirring motor; 28. Stirring 30. Charging port; 31. Pesticide bottle; 32. First RFID tag; 33. Agricultural material bag; 34. Second RFID tag; 35. Boom; 36. Electric pump switch .

Detailed ways

The embodiments of the present invention are described below through specific specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that the following embodiments and features in the embodiments may be combined with each other under the condition of no conflict.

The purpose of the present invention is to provide an agricultural spraying device, an Internet of Things monitoring system and a method thereof in view of the defects of the prior art.

Example 1

This embodiment provides an agricultural spraying device, as shown in Figures 1-2, comprising a tank body 22, a spray rod 35, a matching pesticide bottle 31, and an agricultural material bag 33, and a water injection port is provided on the top shell 10 of the tank body 2. The injection port 8, the injection port 5, the first RF module 14; the diameter of the injection port 2 is larger than the diameter of the injection port 8; the diameter of the injection port 5 is larger than the diameter of the injection port 8; There is a water injection flowmeter 15 controlled by the ARM chip 21; the injection port 8 is provided with a drug injection flowmeter 18 controlled by the ARM chip 21, and a drug injection solenoid valve 19; the injection port 5 is provided with a feeding cavity 1601; 8 and the injection port 5 are also provided with an RFID read head 20 controlled by an ARM chip 21; a liquid outlet flowmeter 24 and a liquid outlet solenoid valve 25 controlled by the ARM chip 21 are provided under the liquid outlet 23; There is a first RFID tag 32, and a second RFID tag 34 is provided at the mouth of the agricultural material bag 33;

The first RF module 14 is used for two-way communication with the farmland; the RFID read head 20 is used to identify the first RFID tag 32 and the second RFID tag 34, the drug injection solenoid valve 19 is used to control the opening and closing of the drug injection port 8, and the drug injection The flow meter 18 is used to measure the amount of pesticide entering the tank; the water injection flow meter 15 is used to measure the amount of water entering the tank; the feeding cavity 1601 is used to make the medicine in the agricultural bag enter the tank through the feeding cavity; The solenoid valve 25 is used to control the opening and closing of the liquid outlet, and the liquid outlet flowmeter 24 is used to measure the amount of pesticide flowing out of the tank;

When the RFID reading head 20 recognizes the mouth of the pesticide bottle with the desired first RFID tag 32 or the mouth of the agricultural material bag of the second RFID tag 34, the pesticide in the pesticide bottle 31 or the chemical in the agricultural material bag 33 is injected The medicine port 8 and the material injection port 5 enter the tank body; after receiving the liquid discharge instruction, the liquid discharge flow meter 24 measures the amount of pesticide flowing out from the liquid outlet 23 in real time. Close to stop dispensing.

In this embodiment, pesticides commonly have two states: liquid and solid (usually in powder form).

In this embodiment, the ARM chip 21 is used to process information of each module. Among them, the ARM control board runs the Android operating system, and is designed with a special APP program (which can be understood as a small Android tablet computer, which can run a special APP).

The first RFID tag 32 provided at the mouth of the pesticide bottle 31 is a ring-shaped passive, flexible RFID tag; the pesticide bottle 31 in this embodiment contains liquid pesticides, as shown in FIG. 1 , the first RFID tag set on the pesticide bottle 31 An RFID tag 32 is sleeved on the bottle neck and cannot be removed, and its function is to identify the identity of the pesticide in the bottle.

Pesticides can be divided into various types according to their chemical composition and use. Different types of pesticides have different requirements for their dosage when used, that is, there are different regulations on the ratio of medicine and water. For example, when the amount of water is a unit amount of water (such as 1L), the safety dosage of pesticide A is P _A (mL), the safety dosage of pesticide B is P _B (mL), and so on.

When pouring the pesticide into the device, hold the bottle with the mouth down and close to the injection port 8. The RFID reader 20 is installed under the injection port 8 to ensure that it can read the ring-shaped label on the neck of the pesticide. For example, using 13.56 For the MHz scheme, the distance is generally within 5cm.

The second RFID tag 34 provided at the pocket opening of the agricultural material bag 33 is a passive, flexible RFID tag; the second RFID tag 34 is fixed on the pocket opening of the agricultural material bag 33. In this embodiment, the It is a solid (such as powder) pesticide material, abbreviated as medicine material. As shown in Figure 1, the label set on the agricultural material bag is integrated on the material of the agricultural material bag and cannot be removed. Its function is to identify the identity of the pesticide in the material bag.

Medicines can be divided into various types according to their chemical composition and purpose. Different types of medicinal materials have different requirements for their dosage when used, that is, there are different regulations for the ratio of materials and water. For example: when the amount of water is a unit amount of water (such as 1L), the safety dosage of drug A is G _A (g), the safety dosage of drug _B is GB (g), and so on.

When pouring the medicine into the device, hold the bag down and close to the feeding port 5. The RFID reader 20 is installed under the feeding port 5 to ensure that it can read the label on the mouth of the agricultural material bag. 13.56MHz scheme, the distance is generally within 5cm.

In this embodiment, the water injection port 2 is arranged on the top shell 10 of the spray device tank, and is also provided with a water injection port cover 1 that is adapted to the water injection port 2. When the tank needs to add water, the water injection port cover 1 is opened, Add water through the water injection port 2; when the water is added, put the water injection port cover 1 on the water injection port 2.

The drug injection port 8 is arranged on the top shell 10 of the spray device tank, and is also provided with a drug injection port cover 7 that is adapted to the drug injection port 8. When the tank needs to be filled with pesticides, the drug injection port cover 7 is opened, and the pesticide Add through the drug injection port 8; when the drug injection is completed, cover the drug injection port cover 7 on the drug injection port 8.

The material injection port 5 is arranged on the top shell 10 of the spray device, and is also provided with a material injection port cover 4 which is matched with the material injection port 5. When the tank needs to be filled with medicine, the material injection port cover 4 is opened, and the The medicine is added through the feeding port 8; when the feeding is completed, the feeding port cover 4 is covered on the feeding port 5.

The water injection flowmeter 15 is provided in the water injection port 2 and the tank body 22; the drug injection flowmeter 18, the drug injection solenoid valve 19 and the driving circuit of the solenoid valve are all arranged under the drug injection port 8 and in the tank body 22; the RFID read head 20 , the ARM chip 21 is arranged under the injection port 8 and the material injection port 5, and in the tank body 22; the feeding cavity 1601 is arranged under the material injection port 5, and the feeding cavity 1601 is provided with a feeding tray 1604 and a stepping motor 17. , rotating shaft 1606, limit plate 1602, limit switch 1603.

The RFID reading head 20 reads the first RFID tag 32 of the pesticide bottle 31, and processes the read information through the ARM chip 21; the RFID reading head 20 reads the second RFID tag 31 of the agricultural material bag 33, reads the information The acquired information is processed by the ARM chip 21 .

The water injection flowmeter 15 is used to measure the amount of water entering the tank 22, specifically: when the user starts to add water, the water is injected into the device through the water injection port. During this water injection process, the ARM chip controls the water injection flowmeter 15 to calculate/refresh the water intake in real time.

The drug injection flowmeter 18 is used to measure the amount of pesticide entering the tank 22, specifically: when the user starts to add the drug, the drug is injected into the device through the drug injection port. During the drug injection process, the ARM chip controls the drug injection flowmeter 18 in real time. Calculate/refresh the amount of pesticide poured.

The drug injection solenoid valve 19 is used to control the opening and closing of the drug injection port 8, specifically: in the initial state of the device, the drug injection solenoid valve 19 is in a closed state, and after receiving the instruction to open the drug injection, the ARM chip controls the solenoid valve The driving circuit is used to make the injection solenoid valve 19 open; after receiving the instruction to stop the injection, the injection solenoid valve 19 is closed.

As shown in Figure 4, it is a schematic diagram of the injection tray and its related structures.

The feeding cavity 1601 is used to make the chemicals in the agricultural material bag 33 enter the tank body 22 through the feeding cavity 1601 . The feeding tray 1604 is provided with a load cell, and the load cell is used to measure the weight of the medicine on the feeding tray 1604 . The limit plate 1602 is installed on one side of the feeding cavity 1601, and the limit switch 1603 is installed on the limit plate 1602; the rotating shaft 1606 is arranged in the feeding tray 1601, one end of the rotating shaft 1606 is connected with the stepping motor 17, and the The other end is connected to the tank body 22; when the medicine in the agricultural material bag 33 enters the feeding cavity 1601, the medicine is placed on the feeding tray 1604, and the weighing sensor arranged in the feeding tray 1604 measures the feeding tray in real time The weight of the medicine on 1604, when the weight reaches the standard, the stepping motor 17 drives the rotating shaft 1606, so that the rotating shaft 1606 drives the feeding tray 1604 to rotate, and releases the limit switch 1603, so that the medicine enters the tank 22.

In this embodiment, the top shell 10 of the tank body is further provided with a first RF module 14, and the first RF module 14 performs two-way communication with the second RF module disposed at the farm terminal; The transceiver radio frequency module (but not limited in this embodiment, 433MHz is taken as an example).

In this embodiment, the water injection port 2 is provided with a water injection indicator light 3; the drug injection port 8 is provided with a drug injection indicator light 9; the material injection port 5 is provided with a material injection indicator light 6; The indicator light 9 and the filling indicator light 6 are both used to display the current state according to the ARM chip control instruction. Among them, the water injection indicator 3, the medicine injection indicator 9, and the material injection indicator 6 are integrated red and green two-color LEDs (3 feet, common anode LED lights).

In this embodiment, the top shell 22 of the spraying device is also provided with a main power switch 12, a touch screen 11, and a voice module; wherein, the main power switch 12 is used to start the agricultural spraying device; the touch screen 11 is used to receive and display The input control command, wherein the received control command includes opening the water injection/medicine/material button, closing the water injection/medicine/material button, the displayed command includes the water injection/medicine/material button, and the prompt information during the operation; the voice module includes a speaker and a speaker. The sound hole 13 prompts the control command to be executed.

Specifically, after the device is turned on through the main power switch 12 of the device, the water injection indicator 3, the drug injection indicator 9, and the material injection indicator 6 light up in red, and the user is prompted through the voice module to "press the water injection button", and the user receives this information After that, the user presses the water injection button on the touch screen 11 (the button becomes the "stop water injection button" after pressing it), and the water injection indicator 3 lights up green; the screen and voice prompt on the touch screen 11 "please start adding water"; After reaching the required amount of water, press the stop water injection button on the touch screen 11 again, the screen and voice on the touch screen 11 will prompt "water filling is complete", and the water injection indicator 3 will light up in red at this time;

When it is necessary to add medicine, the screen and voice of the touch screen 11 prompt "please press the medicine injection button". After the user receives the information, the user presses the medicine injection button of the touch screen 11. At this time, the medicine injection indicator 9 lights up green, and the touch screen 11 The screen and voice prompt "please start injecting the medicine"; when the dose of the drug reaches the required amount, the touch screen 11 screen and voice prompt "the drug injection is completed, and the injection indicator light 9 is on red at this time.

When the medicine needs to be added, the screen of the touch screen 11 and the voice prompt "please press the feeding button". After the user receives the information, the user presses the injection button of the touch screen 11. At this time, the injection indicator 6 lights up green, and the touch screen 11's screen and voice prompt "please start feeding the medicine"; when the amount of the medicine reaches the required amount, the touch screen 11 screen and voice prompt "the filling of the medicine is completed, and the injection indicator 6 is on red at this time.

In this embodiment, the bottom of the tank body 22 is provided with a liquid outlet 23 ; the liquid outlet 23 is provided with a liquid outlet flowmeter 24 and a liquid outlet solenoid valve 25 controlled by the ARM chip 21 .

Specifically, after receiving the spraying instruction, the liquid outlet flowmeter 24 measures the amount of pesticide flowing out of the liquid outlet 23 in real time. When the outflow pesticide amount reaches the standard, the liquid outlet solenoid valve 25 is closed to stop the liquid outlet.

In this embodiment, the bottom of the tank body 22 is provided with a conduit, an electric pump 26, a stirring motor 27, a stirring head 28, a first rechargeable battery 29, and a charging port 30; the conduit is connected to the electric pump 26, and the electric pump 26 is also connected to the A rechargeable battery 29 is connected, the first rechargeable battery 29 is also connected to one end of the stirring motor 27, the other end of the stirring motor 27 is connected to the stirring head 28, and the stirring head is connected to the stirring motor so that after the stirring motor is started, the stirring head is driven to stir The spray rod 35 is connected to the liquid outlet 23 of the tank body through the conduit and the electric pump 26; the spray rod 35 is also provided with an electric pump switch 35 to control the opening/closing of the electric pump.

Specifically, the mains plug is inserted into the charging port 30 , and the mains passes through the first charging control circuit to charge the first rechargeable battery 29 .

The power management circuit takes the output voltage of the first rechargeable battery 29 as the input voltage, converts it into various levels of DC voltage and outputs it, which is used to supply the ARM chip 21, the RFID read head 20, the water injection flowmeter 15, the medicine injection flowmeter 18, and the scale. Weight sensor, limit switch 1603, touch screen 11, water injection indicator light 3, drug injection indicator light 9, material injection indicator light 6, drug injection solenoid valve 19 and solenoid valve drive circuit, electric pump 26 and electric pump drive circuit, stirring motor 27 and stirring motor drive module, stepper motor 17 and stepper motor drive module, liquid outlet flowmeter 24, liquid outlet solenoid valve 25 and solenoid valve driving circuit, voice module (including speaker) and other circuit modules are powered.

Figure 3 shows the circuit block diagram of the agricultural spraying device. The device also includes a perpetual calendar circuit, a first storage circuit, and a first communication module. The first storage circuit is used to store information including historical operation records and operation records; the perpetual calendar circuit uses Year, month, day, hour, minute and second are stored; the first communication module is used for mutual communication with the farm terminal.

The ARM chip 21 is respectively connected with the RFID read head 20, the water injection flowmeter 15, the drug injection flowmeter 18, the load cell, the limit switch 1603, the touch screen 11, the water injection indicator light 3, the drug injection indicator light 9, the material injection indicator light 6, Injection solenoid valve 19 and solenoid valve driving circuit, electric pump 26 and electric pump driving circuit, stirring motor 27 and stirring motor driving module, stepping motor 17 and stepping motor driving module, liquid outlet flow meter 24, liquid outlet solenoid valve 25 is connected with the solenoid valve driving circuit, the voice module, the first power management circuit, the first charging control circuit, the first storage circuit, the perpetual calendar circuit, and the first communication module.

The first rechargeable battery 29 also includes power for the perpetual calendar circuit, the first storage circuit, and the first communication module.

In this embodiment, the device accesses the server through the first communication module (4G or/and WiFi, not limited), and can obtain regularly updated data sets and store them in the storage circuit of the device, so that the device can support the identification of new drugs, automatic match.

In this embodiment, through the first communication module, the operation records are regularly uploaded to the server for later viewing. The operation record information includes at least: pesticide ID (the device APP can further associate with the corresponding pesticide type, pesticide name, pesticide manufacturer, production date, expiration date and other specific information according to the ID), water intake, drug intake, and operation date.

Compared with the prior art, the technical effect achieved in this embodiment is:

1. An RFID tag is set on the pesticide bottle, and an RFID read head is set on the device to realize the identification of pesticides, and at the same time, it supports liquid/solid pesticides, and the feeding amount/feeding amount is automatically matched, so as to prevent problems such as entering expired drugs and overdose;

2. Periodically and continuously read during the medicine feeding process, which can prevent users from accidentally making a mistake in the medicine bottle or medicine bag;

3. Job records can be viewed and uploaded, and data sets can be updated;

4. The agricultural management department is responsible for the use of Internet of Things technology to incorporate crop spraying into scientific and networked management, establish a spraying drug networking system, monitor the entire spraying operation, and improve the intelligence and information of crop spraying technology. level.

Embodiment 2

This embodiment provides an Internet of Things monitoring system based on an agricultural spraying device, as shown in FIG. 5 , wherein the monitoring system is based on an automatic proportioning agricultural spraying device according to the first embodiment, including:

MCU micro-processing module, rain sensor, GPS positioning module, second storage circuit, second RF module, second communication module, second rechargeable battery connected to the MCU micro-processing module; the second communication module is used to communicate with the server communication; the second RF module is used for bidirectional communication with the first RF module of the spray device; the GPS positioning module is used to determine the position information of the farmland; the rain sensor is used to detect the rainfall of the current farmland; the The second storage circuit is used to store the information related to the farmland; the second rechargeable battery is used to provide electrical energy for the MCU microprocessor module, the rain sensor, the GPS positioning module, and the second storage circuit; the second rechargeable battery also It is connected to the second power management circuit and the second charging control circuit.

In this embodiment, each piece of farmland is provided with a pole, and a signal transceiver is installed on the pole. In the IoT system, the signal transceiver is called the field terminal.

In the Internet of Things monitoring system, the Internet of Things monitoring system is constituted by a server, at least one spraying terminal, and at least one farmland terminal.

Among them, the first communication module of the spraying terminal and the second communication module of the farmland terminal use communication modules such as GPRS, NB-IoT, and 4G (not limited, take 4G as an example).

The first RF module of the spraying terminal and the second RF module of the farm terminal use the ISM frequency band and the two-way transceiver (not limited, take 433MHz as an example).

The communication between the server and the spraying terminal: 4G; the communication between the server and the farmland terminal: 4G; the communication between the spraying terminal and the farmland terminal: short-range RF.

In this embodiment, taking the monitoring scope selected by the agricultural management department as an example, for example, taking a county as an example, the designated farmland in the county can be included in the monitoring scope.

In the Internet of Things monitoring system, the identity of the farmland is identified, and the 4G module of each farmland terminal is inserted into the 4G card to have a unique ID number. The server records in advance the farmland area corresponding to each farmland terminal within the range (which can be measured with an acre meter in advance) and the name of the crop, and then sends a group command to all farmland terminals to obtain the GPS coordinate information of each farmland terminal. , recorded in the second storage circuit to realize the binding of GPS coordinates and ID numbers. In this way, the associated information of each farmland terminal is established in the database of the server, including: farmland ID, GPS coordinates, farmland area, and crop name.

In this embodiment, a work schedule table and a worker table are created by the server.

Among them, the job schedule:

In a set period (for example: a natural year as a period), establish a farmland operation schedule, including: the ID of each farmland, GPS coordinates, crop name, farmland area, time period for spraying, and the name of the applied drug (including liquid and solid), the amount of water per unit volume (for example, 1L), the amount of the applied drug (volume of liquid pesticide, weight of solid pesticide), the amount to be sprayed (multiply the amount of spray per unit area by the farmland area, You will know the amount and volume of the mixture of water and medicine that should be sprayed).

For example, farmland No. 5, GPS coordinates (X, Y, Z), crop name southern wheat, farmland area S, the first spraying time period is March 1-6 (can be specific to "hour"), The name of the applied drug is pesticide A (liquid), the amount of applied drug A per unit volume of water is A ₁ mL, and the amount that should be sprayed out of the corresponding area S is A ₂ L; the second spraying time period is August 7. On -9th, the names of the applied drugs are pesticides B (solid) and C (liquid), the amount of applied drug B per unit volume of water is B ₁ g, and the amount of applied drug C per unit volume of water is C ₁ mL, corresponding to the area S The amount that should be ejected is BC ₂ L.

Dynamic adjustment of job schedule:

The server accesses the Internet to obtain daily meteorological information (rain, sunshine, etc.), and flexibly and dynamically adjusts the work schedule accordingly. For example, most pesticides may not work well if they are applied in the rain. Then, if it happens to be rainy when the task is triggered in the job schedule, it can be adjusted.

Worker table:

Each spray terminal is equipped with a 4G module, and when a 4G card is installed, it has a unique ID, and a table is created for all operators according to their assigned spray terminal IDs. Install a dedicated APP on the operator's mobile phone. Compared with the prior art, in this embodiment, the agricultural management department is in charge, and the Internet of Things technology is used to incorporate crop spraying into scientific and networked management, establish a spraying drug networking system, monitor the entire spraying operation, and improve crops. The level of intelligence and informatization of spraying technology.

Embodiment 3

This embodiment provides an Internet of Things monitoring method based on an agricultural spraying device. The monitoring method is based on the monitoring system of the second embodiment, as shown in FIG. 6 , including steps:

S11. Acquire the farmland information corresponding to the farmland to be sprayed; wherein the farmland information includes the current farmland ID, GPS coordinate information, farmland area, crop name, name of the required pesticide, the proportion of pesticides, the amount of pesticides that should be sprayed the amount of pesticides released;

S12. According to the acquired farmland information, formulate pesticides through a spray device to obtain pesticides that conform to the current farmland;

S13. Spray the prepared pesticide through the spray rod of the spray device, wherein the ARM chip in the spray device controls the opening of the liquid outlet solenoid valve through the liquid outlet solenoid valve drive circuit, and the liquid outlet flow meter measures the flow out of the liquid outlet in real time. amount of pesticides;

S14. Calculate the difference between the amount of pesticide to be sprayed and the liquid output obtained in real time by the liquid flow meter, and determine whether the difference is less than a preset threshold, if so, the liquid outlet solenoid valve is closed, Stop spraying.

In this embodiment, before step S11, it further includes:

S10. Screen the farmland currently available for operation.

The step S10 specifically includes:

S101. The server determines whether a job task is currently triggered, and if so, continues to execute;

Specifically, the server judges whether there is currently a job task trigger (the trigger result is a list of farmland that needs to be sprayed and its corresponding job task list), and if so, executes the next step.

S102. The server sends to the farmland terminal through the second communication module the rainwater information output by the rainwater sensors of all farmlands, and judges whether the rainfall of each farmland is greater than the rainfall threshold according to the obtained rainwater information, and if so, reminds the user; If not, get the farmland on which the operation needs to be performed;

Through the 4G module, the server sends the "Get Weather Conditions" command to all the farmland terminals listed in step S101. After each farmland terminal receives it, it reads the output of the rain sensor to determine whether it is currently raining on the farmland (the task is triggered in step S101). , indicating that the server determines that the farmland can be operated according to the weather forecast, but the weather forecast is sometimes inaccurate, and there are complex situations such as partial rain, partial rain, etc.), if it rains, judge the amount of rainfall, if the rainfall is greater than the set value, through 4G, reply "too much rainfall" information to the server, after the server receives it, cancel the operation task of the farmland.

S103. The server acquires the farmland terminal set on the farmland according to the obtained farmland, and sends the information and operation tasks of the current farmland to the terminals and/or spray devices of all operators;

The server screens out farmland terminals that can perform operations normally. The server sends the current job tasks in batches [including: farmland ID, GPS coordinates, farmland area, crop name, name of applied medicine (more than one medicine may be used at a time), the amount of medicine applied per unit volume of water (more than one medicine may be used at one time) One medicine), the amount to be sprayed] to the mobile phone or/and spray terminal of all operators, waiting for the operator to accept the task.

Suppose the current task is: Farmland No. 5, GPS coordinates (X, Y, Z), the crop name is southern wheat, the farmland area S, the name of the applied drug is Pesticide A (liquid), and the amount of applied drug A per unit volume of water is A ₁ mL, the amount that should be ejected is A ₂ L

S104. When any operator receives the operation task, determine whether the distance between the spraying device and the farmland terminal is less than a preset distance, and if so, send the information related to the spraying device to the farmland terminal through the first RF module , the farmland terminal returns the received information to the server.

Personnel A (according to the GPS coordinates of the No. 5 farmland, the staff can generally accept the task according to the principle of proximity) accepted the current operation task. The process is as follows: Person A sends an application for accepting the task to the server through the mobile phone or/and the spraying terminal. After the server receives it, it identifies the spraying terminal corresponding to A, and sends the confirmation task information to the spraying terminal of A. After A confirms the task, other personnel can no longer accept it.

Person A comes to the current farmland and signs in first, that is: Person A is close to the farmland terminal (the RF communication between the spraying terminal and the farmland terminal is set to be close, for example, within 2 meters), operate the touch screen of the spraying terminal, click the sign-in button, and spray The terminal sends relevant information (including: spraying terminal ID, etc.) to the farmland terminal through RF. After the farmland terminal receives it, it forwards it to the server through 4G. After the server receives it, it will reply the information to the spraying terminal, touch screen and voice prompt: sign in Success, start preparing the solution.

In step S11, the farmland information corresponding to the farmland to be sprayed is obtained; wherein the farmland information includes the current farmland ID, GPS coordinate information, farmland area, crop name, name of the required pesticide, and proportion of the pesticide , The amount of pesticide that should be sprayed.

In step S12, according to the acquired farmland information, the spraying device is used to prepare the pesticide to obtain a pesticide that matches the current farmland.

A should prepare the solution according to the name of the applied medicine for the current task and the amount of applied medicine per unit volume of water.

Specifically include:

S121. Initialization of pesticide spraying device;

Assuming that the power of the rechargeable battery is normal, click the main switch of the device to turn on the device, the device is in the initial state, the initial state is: the solenoid valve is closed, the water injection indicator, drug injection indicator, and material injection indicator light are red, and the electric pump switch is turned off .

In this example, the pesticide A currently required is specifically described as pesticide A, wherein pesticide A is a liquid.

S122. add water to the tank of the pesticide spraying device through the water injection port, when the water intake reaches the required water amount, stop adding water; wherein, when adding water to the tank body, the water injection flowmeter set under the water injection port obtains the water intake in real time;

First, add water to the tank. At this time, the touch screen and the voice module will prompt the user, such as "please press the water injection button". After the user receives the prompt, the user presses the water injection button on the touch screen. button becomes "stop water injection button"), the water injection indicator lights up green, and the touch screen screen and voice prompt "please start adding water";

The user starts adding water and injects the water into the device through the water injection port. During this process, the water injection flowmeter calculates/refreshes the water inflow in real time. When the user thinks that the required water volume has been reached, press the stop water injection button on the touch screen again, and the touch screen screen and The voice prompts "water filling is complete", the water filling indicator lights up red, and the device records the amount of water added.

S123. The RFID read head disposed under the injection port identifies the RFID tag on the bottle port of the pesticide bottle, and judges whether the pesticide corresponding to the RFID tag has expired according to the identified RFID tag, and if so, remind the user; if not, then Find the pesticide proportioning amount corresponding to the RFID tag according to the identified RFID tag, and execute step S124;

Specifically: when the water is finished, the touch screen screen and voice prompt "Please identify whether the pesticide has expired", the user takes the pesticide bottle to be used this time (do not open it first), puts the bottle mouth close to the injection port, and the RFID reader of the device Read the ID of the first RFID tag and record it, according to the ID, search in the data set pre-stored in the storage circuit of the device, find the expiration time of the pesticide corresponding to the ID, and the current time (year, month) of the perpetual calendar circuit. , day, hour, minute, second) to compare to determine whether the ID pesticide has expired, if so, the touch screen screen and voice prompt "Pesticide expired, please do not use", the subsequent process will not be executed; if not, continue to execute;

According to the recorded ID, the device finds the proportioning amount of the pesticide corresponding to the ID in the data set that has been pre-existed in the device in advance (set the safety dosage of pesticide A as the amount of drug injected per unit of water/the proportioning amount is P _A. ), combined with the recorded amount of water (set the current amount of water added as P), it can be known that the matching amount of medicine to be injected is equal to P×P _A , and the amount of medicine to be injected is recorded.

In this embodiment, the data set pre-stored in the device includes at least the following information: pesticide ID, expiration date, and safety proportioning dosage per unit of water volume.

The S124.ARM chip controls the opening of the solenoid valve through the solenoid valve driving circuit, and adds the pesticide to the tank of the pesticide spraying device through the injection port; wherein, the injection flow meter is set under the injection port when the pesticide is added to the tank. Real-time access to the amount of medicine;

In this embodiment, step S124 further includes: when the pesticide is added to the tank of the pesticide spraying device, the RFID reading head periodically reads the first RFID tag; and judging the first RFID tag read twice in a row If they are the same, if they are the same, continue to execute; if not, close the solenoid valve.

Specifically, when the dosage of pesticide A is obtained, the touch screen screen and voice prompt "please press the drug injection button", the user presses the drug injection button on the touch screen, and the touch screen screen and voice prompt "please start drug injection", note The medicine indicator light is green, and the solenoid valve is automatically opened at this time.

The user opens the bottle cap and starts pouring pesticides from the injection port. During the entire process from the user's start of pouring pesticides to the completion of the drug feeding process (called the drug feeding process), the RFID read head of the device periodically reads the ID of the tag according to the set period, and makes two comparisons:

(1) compare the ID recorded in step S123 with the ID read for the first time in the medicine feeding process;

(2) Compare the ID read at the Nth time during the drug administration process with the ID read at the N-1th time. (N ≥ 2, i.e. the ratio of the 2nd time to the 1st time, the ratio of the 3rd time to the 2nd time.... the normal practice in sampling and control)

If the comparison results of (1) or (2) are inconsistent, indicating that the user may have taken another medicine bottle by mistake, the solenoid valve will be closed immediately, the medicine injection indicator will turn red, and the touch screen screen and voice prompt "Do not inject medicine by mistake. ".

If the comparison results of (1) and (2) are consistent, it indicates that the user operates normally during this process.

S125. Determine whether the added pesticide amount is equal to the found pesticide proportioning amount according to the drug feeding amount obtained in real time by the drug injection flowmeter, and if so, the electromagnetic valve is closed and the drug feeding is stopped.

During the feeding process, the injection flowmeter calculates/refreshes the amount of the injected pesticide in real time, and compares it with the amount of the pesticide to be injected in the recorded pesticide ratio. When the dose is reached, the touch screen screen and voice prompt "Drug injection is complete", the injection indicator light is red, at this time the solenoid valve closes the touch screen screen and voice prompts "Please turn on the electric pump switch to start spraying".

In step S13, the prepared pesticide is sprayed through the spray rod of the spray device, wherein the ARM chip in the spray device controls the opening of the liquid outlet solenoid valve through the liquid outlet solenoid valve drive circuit, and the liquid outlet flowmeter measures in real time from the outlet The amount of pesticide flowing out of the liquid port.

In step S14, the difference between the amount of pesticide to be sprayed and the liquid output obtained in real time by the liquid flow meter is calculated, and it is judged whether the difference is less than a preset threshold, and if so, the liquid discharge electromagnetic The valve closes to stop spraying.

When A starts spraying, the liquid flow meter calculates the sprayed amount in real time, and compares it with the amount that should be sprayed for the current job task. When it is judged that the difference between the amount P ₁ to be ejected and the accumulated amount P ₂ that has been ejected is smaller than the set threshold (taking into account the possible loss of solution during operation, measurement errors and other factors), the liquid outlet solenoid valve closes, Voice prompt: The homework is completed, please go to the farmland terminal to register.

A approaches the farmland terminal, operates the touch screen of the spraying terminal, clicks the job completion/registration button, the spraying terminal sends relevant information (including: spraying terminal ID, etc.) to the farmland terminal through RF, and the farmland terminal receives it and forwards it to the server through 4G , after the server receives it, it will reply the information to the spraying terminal, and the touch screen and voice prompt: the registration is successful.

In this embodiment, the farmland terminal is used to sign in and register, and one of the purposes is to ensure that the personnel are currently in the farmland and prevent cheating.

In this embodiment, after step S14, the method further includes: uploading the record of the current operation to the first storage circuit.

Upload the current operation record to the server through the communication module. After that, the historical operation record of the device can be obtained in the server. The operation record information at least includes: pesticide ID (the mobile APP can further associate with the corresponding pesticide type, pesticide according to the ID and other specific information), water intake, drug intake, operation date.

The mobile phone can access the server through the communication module, and can obtain the regularly updated data set. By connecting the device, the data set of the device can be updated, so that the device can support the identification and automatic proportioning of new drugs.

This embodiment can also realize the update of the operation plan, the update of the personnel list, the update of the spraying device, and the regular update to support more new farmland, new personnel, new drugs, and the like.

The server can obtain all data from spraying units, field units, including:

(1) Obtain all the data of each operation from the spraying device, including: all related data (such as the amount of pesticide sprayed, the relevant information of the spraying device, the information of the farmland, etc.).

(2) Obtain all the data of each operation from the farmland device, including: check-in time, operation completion time, and calculate the time consumed by the personnel for each operation. Combined with the area and the ejection amount, the operation efficiency of the personnel can be calculated as an evaluation. etc. basis.

The server can also clear all recorded data stored in spraying devices and farmland devices.

Compared with the prior art, the technical effect achieved in this embodiment is:

1. An RFID tag is set on the pesticide bottle, and an RFID read head is set on the device to realize the identification of pesticides, and at the same time, it supports liquid/solid pesticides, and the feeding amount/feeding amount is automatically matched, so as to prevent problems such as entering expired drugs and overdose;

2. Periodically and continuously read during the medicine feeding process, which can prevent users from accidentally making a mistake in the medicine bottle or medicine bag;

3. Job records can be viewed and uploaded, and data sets can be updated;

4. The agricultural management department is responsible for the use of Internet of Things technology to incorporate crop spraying into scientific and networked management, establish a spraying drug networking system, monitor the entire spraying operation, and improve the intelligence and information of crop spraying technology. level.

Embodiment 4

This embodiment provides an Internet of Things monitoring method based on an agricultural spraying device and is different from the third embodiment in that:

This embodiment is described by taking two or more pesticides as an example, and the difference between this embodiment and Embodiment 3 lies in step S12. Step S12 in this embodiment includes the steps:

S121. Initialization of pesticide spraying device;

S122. add water to the tank of the pesticide spraying device through the water injection port, when the water intake reaches the required water amount, stop adding water; wherein, when adding water to the tank body, the water injection flowmeter set under the water injection port obtains the water intake in real time;

S123. The RFID read head disposed under the injection port identifies the RFID tag on the bottle port of the pesticide bottle, and judges whether the pesticide corresponding to the RFID tag has expired according to the identified RFID tag, and if so, remind the user; if not, then Find the pesticide proportioning amount corresponding to the RFID tag according to the identified RFID tag, and execute step S124;

The S124.ARM chip controls the opening of the solenoid valve through the solenoid valve driving circuit, and adds the pesticide to the tank of the pesticide spraying device through the injection port; wherein, the injection flow meter is set under the injection port when the pesticide is added to the tank. Real-time access to the amount of medicine;

S125. Judging whether the added pesticide amount is equal to the found pesticide proportioning amount according to the drug feeding amount obtained in real time by the drug injection flowmeter, and if so, the solenoid valve is closed and the drug feeding is stopped;

S126. Take out the pesticide bottle of pesticide B, and continue to perform steps S123-S125.

In this embodiment, the data set pre-stored in the device includes at least the following information: pesticide ID, expiration date, safety proportioning dosage per unit water volume, and adverse reaction correlation list.

It is worth noting that this example includes that if two or more pesticides need to be mixed in one mixing process, it is only necessary to repeat the relevant steps, except for adverse chemical reactions between pesticides. The above data set " Adverse Reaction Association List" can guarantee this. Assuming that pesticide A has been introduced, and after inquiry, pesticide B will have adverse reactions with pesticide A, the introduction of pesticide B is prohibited.

It should be noted that the IoT monitoring method based on an agricultural spraying device provided in this embodiment is similar to that of the third embodiment, and details are not described here.

In this embodiment, a variety of pesticides are mixed in the pesticide spray device, and the pesticide type is read by the RFID reader, so that the dosage is automatically matched, the concentration of pesticide spray can be controlled from the source, the problem of pesticide exceeding the standard "after the fact" can be completely eliminated, and the public can be guaranteed Eat safe and healthy crops.

Embodiment 5

This embodiment provides an Internet of Things monitoring method based on an agricultural spraying device and is different from the third embodiment in that:

This embodiment and the solid medicine are taken as an example for specific description, and the difference between this embodiment and the third embodiment lies in step S12. Therefore, step S12 in this embodiment is specifically:

S121. Initialization of pesticide spraying device;

S122. add water to the tank of the pesticide spraying device through the water injection port, when the water intake reaches the required water amount, stop adding water; wherein, when adding water to the tank body, the water injection flowmeter set under the water injection port obtains the water intake in real time;

S123. The RFID read head disposed under the material injection port identifies the RFID label of the mouth of the agricultural material bag, and judges whether the medicine corresponding to the RFID label has expired according to the identified RFID label, and if so, remind the user; if not , then according to the identified RFID tag, look up the amount of the drug material input corresponding to the RFID tag, and execute step S124;

S124. Add medicinal materials to the feeding tray through the feeding port; wherein, when adding medicinal materials to the feeding tray, a weighing sensor disposed in the feeding tray measures the weight of the medicinal materials on the feeding tray in real time;

S125. According to the real-time weight of the medicine obtained by the weighing sensor, determine whether the added weight of the medicine is equal to the found amount of medicine to be fed. If so, stop feeding the medicine, and the stepping motor drives the feeding tray to rotate, so that the medicine into the tank;

S126. After all the medicinal materials have entered the tank, start the stirring motor to stir the stirring head according to the driving. When the stirring time reaches the set time, the stirring motor stops and the stepper motor is reset.

In step S121, the pesticide spraying device is initialized.

Assuming that the power of the rechargeable battery is normal, click the main switch of the device to turn on the device, the device is in the initial state, the initial state is: the solenoid valve is closed, the water injection indicator, drug injection indicator, and material injection indicator light are red, and the electric pump switch is turned off .

The present embodiment is specifically described by taking the currently required pesticide as the medicinal material A, wherein the medicinal material A is a powdered solid pesticide.

In step S122, water is added to the tank of the pesticide spraying device through the water injection port, and when the water intake reaches the required water amount, water addition is stopped; wherein, the water injection flowmeter set under the water injection port when adding water to the tank is obtained in real time water intake.

First, add water to the tank. At this time, the touch screen and the voice module will prompt the user, such as "please press the water injection button". After the user receives the prompt, the user presses the water injection button on the touch screen. button becomes "stop water injection button"), the water injection indicator lights up green, and the touch screen screen and voice prompt "please start adding water";

The user starts adding water and injects the water into the device through the water injection port. During this process, the water injection flowmeter calculates/refreshes the water inflow in real time. When the user thinks that the required water volume has been reached, press the stop water injection button on the touch screen again, and the touch screen screen and The voice prompts "water filling is complete", the water filling indicator lights up red, and the device records the amount of water added.

In step S123, the RFID reading head disposed under the feeding port identifies the RFID tag of the agricultural material bag mouth, and judges whether the medicine corresponding to the RFID tag has expired according to the identified RFID tag, and if so, the user is reminded ; If not, look up the amount of the medicine material input corresponding to the RFID label according to the identified RFID label, and execute step S124.

Specifically: when the water is finished, the touch screen screen and the voice prompt "Please identify whether the medicinal material has expired", the user takes the agricultural material bag to be used this time (do not open it first), and puts the bag mouth close to the injection port, and the device's RFID The reading head reads the ID of the second RFID tag and records it, according to the ID, searches in the data set pre-stored in the storage circuit of the device, and finds the expiration time of the pesticide corresponding to the ID, which is the same as the current time (year) of the perpetual calendar circuit. , month, day, hour, minute, second) to compare to determine whether the ID pesticide has expired. If so, the touch screen screen and voice prompts "The medicine has expired, please do not use it", and the subsequent process will not be executed; if not, continue to execute ;

According to the recorded ID, the device finds the proportioning amount of the pesticide corresponding to the ID in the data set pre-existed in the device (assuming the safety dosage of the drug A is the feeding amount per unit of water / the proportioning amount is PA. ), combined with the recorded water amount (set the current added water amount as P), it can be known that the matching should be fed amount equal to P × PA, and the should be fed amount is recorded.

In this embodiment, the data set pre-stored in the device includes at least the following information: pesticide ID, expiration date, and safety proportioning dosage per unit of water volume.

In step S124, the medicine is added to the feeding tray through the feeding port; wherein, when adding the medicine to the feeding tray, the weighing sensor disposed in the feeding tray measures the weight of the medicine on the feeding tray in real time .

In this embodiment, step S124 further includes: when adding chemicals to the tank of the pesticide spraying device, the RFID reading head periodically reads the second RFID tag; and judging whether the second RFID tags read twice in a row are the same, If it is the same, continue to execute; if not, remind the user.

Specifically, when the feeding amount of the medicine A is obtained, the touch screen screen and voice prompt "Please press the feeding button", the user presses the injection button on the touch screen, and the touch screen screen and voice prompt "Please start feeding", The fill indicator lights up green.

The user opens the medicine bag and starts to pour the medicine from the injection port. At this time, the medicine is placed on the feeding tray, and the whole process from the user starting to pour the material on the feeding tray to the completion of the feeding (called feeding process), the RFID read head of the device periodically reads the ID of the tag according to the set period, and makes two comparisons:

(1) compare the ID recorded in step S123 with the ID read for the first time in the feeding process;

(2) Compare the ID read at the Nth time in the feeding process with the ID read at the N-1th time. (N≥2, that is, the ratio of the 2nd time to the 1st time, and the ratio of the 3rd time to the 2nd time. Conventional practice in sampling and control).

If the comparison results of (1) or (2) are inconsistent, it indicates that the user may have taken another medicine bag by mistake during the process, the filling indicator will light up in red, and the touch screen screen and voice prompt "Do not misfeed medicine".

If the comparison results of (1) and (2) are consistent, it indicates that the user operates normally during this process.

In step S125, according to the real-time weight of the medicine obtained by the weighing sensor, it is judged whether the weight of the added medicine is equal to the found amount of medicine to be fed; The medicine enters the tank.

During the feeding process, the weighing sensor measures the weight of the medicine on the feeding tray in real time, and compares it with the found amount to be fed. When it is judged that the weight of the medicine in the feeding tray is equal to the amount to be fed , the touch screen screen and voice prompt "feeding completed", the injection indicator light is red. Then, the stepper motor (the stepper motor shaft is connected to the tray, in the initial state, the tray is in a horizontal position, and the tray presses the limit switch) rotates 90° counterclockwise, the medicine falls, enters the tank, and waits for the set time ( For example, 2s, wait for all the medicines to fall), so that all the medicines enter the tank.

In step S216, when all the medicinal materials enter the tank, the stirring motor is started to drive the stirring head to stir, and when the stirring time reaches the set time, the stirring motor stops and the stepping motor is reset.

When all the medicinal materials enter the tank, the stirring motor starts to drive the stirring head to stir. After the stirring reaches the set time (for example, 10s), the stirring motor stops. The stepper motor resets (that is, rotates 90° clockwise, and stops when the limit switch is detected to be pressed again, that is, the reset is completed), and the touch screen screen and voice prompt "Please turn on the electric pump switch to start spraying.

Compared with the prior art, the technical effect achieved in this embodiment is:

1. An RFID tag is set on the pesticide bottle, and an RFID read head is set on the device to realize the identification of pesticides, and at the same time, it supports liquid/solid pesticides, and the feeding amount/feeding amount is automatically matched, so as to prevent problems such as entering expired drugs and overdose;

2. Periodically and continuously read during the medicine feeding process, which can prevent users from accidentally making a mistake in the medicine bottle or medicine bag;

3. Job records can be viewed and uploaded, and data sets can be updated;

4. The agricultural management department is responsible for the use of Internet of Things technology to incorporate crop spraying into scientific and networked management, establish a spraying drug networking system, monitor the entire spraying operation, and improve the intelligence and information of crop spraying technology. level.

Embodiment 6

This embodiment provides an Internet of Things monitoring method based on an agricultural spraying device and is different from Embodiment 5 in that:

This embodiment is described by taking two or more medicinal materials as an example, and the difference between this embodiment and the fourth embodiment lies in step S12. Step S12 in this embodiment includes the steps:

S121. Initialization of pesticide spraying device;

S122. add water to the tank of the pesticide spraying device through the water injection port, when the water intake reaches the required water amount, stop adding water; wherein, when adding water to the tank body, the water injection flowmeter set under the water injection port obtains the water intake in real time;

S123. The RFID read head disposed under the material injection port identifies the RFID label of the mouth of the agricultural material bag, and judges whether the medicine corresponding to the RFID label has expired according to the identified RFID label, and if so, remind the user; if not , then according to the identified RFID tag, look up the amount of the drug material input corresponding to the RFID tag, and execute step S124;

S124. Add medicinal materials to the feeding tray through the feeding port; wherein, when adding medicinal materials to the feeding tray, a weighing sensor disposed in the feeding tray measures the weight of the medicinal materials on the feeding tray in real time;

S125. According to the real-time weight of the medicine obtained by the weighing sensor, determine whether the added weight of the medicine is equal to the found amount of medicine to be fed. If so, stop feeding the medicine, and the stepping motor drives the feeding tray to rotate, so that the medicine into the tank;

S126. When all the medicinal materials enter the tank, start the stirring motor to stir according to the driving stirring head, when the stirring time reaches the set time, the stirring motor stops, and the stepper motor is reset;

S127. Take out the agricultural material bag of the medicinal material B, and continue to perform steps S123-S126.

In this embodiment, the data set pre-stored in the device includes at least the following information: drug ID, expiration date, safety proportioning dosage per unit water volume, and adverse reaction association list.

It is worth noting that this embodiment includes that if two or more kinds of medicinal materials need to be prepared in one mixing process, it is only necessary to repeat the relevant steps, except that adverse chemical reactions will occur between the medicinal materials. The above data set The "Adverse Reaction Relation List" of the above can guarantee this. Assuming that the A drug has been introduced, and the B drug will have an adverse reaction with the A drug after inquiries, the B drug will be banned.

It should be noted that the IoT monitoring method based on an agricultural spraying device provided in this embodiment is similar to that of the fifth embodiment, and details are not described here.

In this embodiment, a variety of pesticides are mixed in the pesticide spray device, and the pesticide type is read by the RFID reader, so that the dosage is automatically matched, the concentration of pesticide spray can be controlled from the source, the problem of pesticide exceeding the standard "after the fact" can be completely eliminated, and the public can be guaranteed Eat safe and healthy crops.

Embodiment 7

The difference between the IoT monitoring method based on the agricultural spraying device provided in this embodiment and the third and fifth embodiments is that:

This embodiment is described by taking two kinds of medicinal materials (a liquid and a solid) and above as an example, including:

S121. Initialization of pesticide spraying device;

S122. add water to the tank of the pesticide spraying device through the water injection port, when the water intake reaches the required water amount, stop adding water; wherein, when adding water to the tank body, the water injection flowmeter set under the water injection port obtains the water intake in real time;

S123. The RFID read head disposed under the injection port identifies the RFID tag on the bottle port of the pesticide bottle, and judges whether the pesticide corresponding to the RFID tag has expired according to the identified RFID tag, and if so, remind the user; if not, then Find the pesticide proportioning amount corresponding to the RFID tag according to the identified RFID tag, and execute step S124;

The S124.ARM chip controls the opening of the solenoid valve through the solenoid valve driving circuit, and adds the pesticide to the tank of the pesticide spraying device through the injection port; wherein, the injection flow meter is set under the injection port when the pesticide is added to the tank. Real-time access to the amount of medicine;

S125. Judging whether the added pesticide amount is equal to the found pesticide proportioning amount according to the drug feeding amount obtained in real time by the drug injection flowmeter, and if so, the solenoid valve is closed and the drug feeding is stopped;

S126. The RFID read head disposed under the material injection port identifies the RFID tag of the agricultural material bag mouth, and judges whether the medicine corresponding to the RFID tag has expired according to the identified RFID tag, and if so, remind the user; if not , then according to the identified RFID tag, look up the amount of the drug material input corresponding to the RFID tag, and execute step S127;

S127. Add medicinal materials to the feeding tray through the feeding port; wherein, when adding medicinal materials to the feeding tray, a weighing sensor disposed in the feeding tray measures the weight of the medicinal materials on the feeding tray in real time;

S128. According to the weight of the medicine obtained in real time by the weighing sensor, determine whether the added weight of the medicine is equal to the amount of the medicine to be fed. If so, stop feeding the medicine, and the stepper motor drives the feeding tray to rotate, so that the medicine into the tank;

S129. After all the medicinal materials have entered the tank, start the stirring motor to drive the stirring head to stir, and when the stirring time reaches the set time, the stirring motor stops and the stepper motor is reset.

The execution order of steps S123-S125 and steps S126-S129 in this embodiment can be interchanged or performed simultaneously, for example, the liquid pesticide is placed in the tank first, and then the solid drug is placed in the tank; or The solid medicine is placed in the tank, and then the liquid pesticide is placed in the tank; or the liquid pesticide and the solid medicine are placed in the tank at the same time.

In this embodiment, the data set pre-stored in the device includes at least the following information: pesticide/medicine ID, expiration date, safety proportioning dosage per unit water volume, and adverse reaction correlation list.

It is worth noting that the liquid and solid used in this embodiment are pesticides and medicinal materials that can be mixed. If two or more kinds of pesticides or medicinal materials need to be mixed in one mixing process, it is only necessary to repeat the relevant steps, except for adverse chemical reactions between pesticides and medicinal materials. "List" can guarantee this. Assuming that A pesticide has been introduced, and after inquiry, B pesticide will have an adverse reaction with A pharmaceutical material, it is forbidden to enter B pesticide.

It should be noted that the implementation of the working method of the identification-based agricultural spray device provided in this embodiment is similar to that of the third and fifth embodiments, and details are not described here.

Compared with the prior art, the technical effect achieved in this embodiment is:

1. An RFID tag is set on the pesticide bottle, and an RFID read head is set on the device to realize the identification of pesticides, and at the same time, it supports liquid/solid pesticides, and the feeding amount/feeding amount is automatically matched, so as to prevent problems such as entering expired drugs and overdose;

2. Periodically and continuously read during the medicine feeding process, which can prevent users from accidentally making a mistake in the medicine bottle or medicine bag;

3. Job records can be viewed and uploaded, and data sets can be updated;

4. The agricultural management department is responsible for the use of Internet of Things technology to incorporate crop spraying into scientific and networked management, establish a spraying drug networking system, monitor the entire spraying operation, and improve the intelligence and information of crop spraying technology. level.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Those skilled in the art to which the present invention pertains can make various modifications or additions to the described specific embodiments or substitute in similar manners, but will not deviate from the spirit of the present invention or go beyond the definitions of the appended claims range.

Claims (10)

1. An agricultural pesticide spraying device is characterized by comprising a tank body, a spray rod, a pesticide bottle and a pesticide bag, wherein the pesticide bottle and the pesticide bag are matched with each other; a liquid outlet is formed in the bottom of the tank body; the diameter of the water injection port is larger than that of the medicine injection port; the diameter of the injection port is larger than that of the injection port; a water injection flowmeter controlled by an ARM chip is arranged below the water injection port; a medicine injection flow meter and a medicine injection electromagnetic valve controlled by an ARM chip are arranged below the medicine injection port; a feeding cavity is arranged below the injection port; an RFID reading head controlled by an ARM chip is arranged below the medicine injection port and the material injection port; a liquid outlet flow meter and a liquid outlet electromagnetic valve controlled by an ARM chip are arranged below the liquid outlet; a first RFID label is arranged at the mouth of the pesticide bottle, and a second RFID label is arranged at the mouth of the pesticide bag;

the first RF module is used for carrying out bidirectional communication with a farmland; the RFID reading head is used for identifying a first RFID label and a second RFID label, the pesticide injection electromagnetic valve is used for controlling the opening and closing of the pesticide injection port, and the pesticide injection flow meter is used for metering the pesticide amount entering the tank body; the water injection flowmeter is used for metering the water quantity entering the tank body; the feeding cavity is used for enabling the pesticide in the pesticide bag to enter the tank body through the feeding cavity; the liquid outlet electromagnetic valve is used for controlling the opening and closing of the liquid outlet, and the liquid outlet flow meter is used for metering the pesticide amount flowing out of the tank body;

when the RFID reading head identifies a pesticide bottle mouth with a required first RFID label or a pesticide bag mouth with a required second RFID label, pesticide of a pesticide bottle or pesticide in the pesticide bag enters the tank body through the pesticide injection port and the material injection port; and when the pesticide amount flowing out of the liquid outlet reaches the standard, the liquid outlet electromagnetic valve is closed, and liquid outlet is stopped.

2. The agricultural pesticide spraying device as claimed in claim 1, wherein a feeding tray, a stepping motor, a rotating shaft, a limiting plate and a limit switch are arranged in the feeding cavity; a weighing sensor is arranged in the feeding tray; the limiting plate is arranged on one side of the feeding cavity, and the limit switch is arranged on the limiting plate; the rotating shaft is arranged in the feeding tray, one end of the rotating shaft is connected with the stepping motor, and the other end of the rotating shaft is connected with the tank body; when the medicine material in the farming material bag gets into when the feeding chamber, the medicine material is arranged in on the feeding tray, weighing sensor measures the weight of the medicine material on the feeding tray in real time, and after weight reached standard, step motor drove the pivot and makes the feeding tray rotate to release limit switch, so that the medicine material gets into the jar body.

3. The agricultural pesticide spraying device as claimed in claim 2, wherein a main power switch, a touch screen and a voice module are further arranged on the top shell of the tank body; the power supply main switch of the device is used for starting the agricultural spraying device to work; the touch screen is used for receiving and displaying an input control instruction; the voice module comprises a loudspeaker and a sound-raising hole and is used for prompting an executed control instruction; the medicine injection port is provided with a matched medicine injection port cover; the water filling port is provided with a matched water filling port cover; the material filling port is provided with a material filling port cover which is matched with the material filling port; a water injection indicator lamp is also arranged on the water injection port; the medicine injection port is also provided with a medicine injection indicator lamp; the material injection port is also provided with a material injection indicator lamp; and the water injection indicator lamp, the medicine injection indicator lamp and the material injection indicator lamp are all used for displaying the current state according to the ARM chip control instruction.

4. An agricultural pesticide spraying device as claimed in claim 3, wherein the bottom of the tank body is further provided with a stirring motor, a stirring head and a first rechargeable battery; the stirring head is connected with one end of a stirring motor, and the other end of the stirring motor is connected with a first rechargeable storage battery; so that the stirring motor drives the stirring head to stir after being started; the first rechargeable storage battery is also connected with the electric pump; the spray rod is connected with a liquid outlet of the tank body through a guide pipe and an electric pump; and the spray rod is also provided with an electric pump switch to control the on/off of the electric pump.

5. The agricultural pesticide spraying device as claimed in claim 4, wherein the ARM chip is electrically connected with the RFID read head, the water injection flow meter, the pesticide injection flow meter, the liquid discharge flow meter, the weighing sensor, the limit switch, the touch screen, the water injection indicator lamp, the pesticide injection solenoid valve and the pesticide injection solenoid valve driving circuit, the liquid discharge solenoid valve and the liquid discharge solenoid valve driving circuit, the electric pump and the electric pump driving circuit, the stirring motor and the stirring motor driving module, the stepping motor and the stepping motor driving module, the voice module, the first RF module, the first rechargeable battery and a first power management circuit thereof, and the first charging control circuit; the ARM chip is further connected with a first storage circuit, a perpetual calendar circuit and a first communication module, and the first storage circuit is used for storing historical operation records and operation record information.

6. An Internet of things monitoring system based on an agricultural pesticide spraying device, which is characterized in that the monitoring system is based on the agricultural pesticide spraying device as claimed in claims 1 to 5, and comprises an MCU (microprogrammed control unit) microprogrammed processing module, a rainwater sensor, a GPS (global positioning system) positioning module, a second storage circuit, a second RF (radio frequency) module, a second communication module and a second rechargeable storage battery, wherein the rainwater sensor, the GPS positioning module, the second storage circuit, the second RF module, the second communication module and the second rechargeable storage; the second communication module is used for communicating with the server; the second RF module is used for bidirectional communication with the first RF module of the spraying device; the GPS positioning module is used for determining the position information of a farmland; the rainwater sensor is used for detecting the rainfall of the current farmland; the second storage circuit is used for storing information related to farmland; the second rechargeable storage battery is used for supplying electric energy to the MCU micro-processing module, the rainwater sensor, the GPS positioning module and the second storage circuit; the second rechargeable storage battery is also connected with a second power management circuit and a second charging control circuit.

7. An Internet of things monitoring method based on an agricultural pesticide spraying device, wherein the monitoring method is based on the Internet of things monitoring system of claim 6, and comprises the following steps:

s1, obtaining farmland information corresponding to a farmland needing to be sprayed with pesticide; the farmland information comprises current farmland ID, GPS coordinate information, farmland area, crop name, name of required pesticide, proportion of pesticide and pesticide amount to be sprayed;

s2, preparing pesticides through a spraying device according to the obtained farmland information to obtain the pesticides which meet the current farmland;

s3, spraying the prepared pesticide through a spray rod of a spraying device, wherein an ARM chip in the spraying device controls the opening of a liquid outlet electromagnetic valve through a liquid outlet electromagnetic valve driving circuit, and a liquid outlet flow meter measures the pesticide amount flowing out of a liquid outlet in real time;

and S4, calculating a difference value between the pesticide amount to be sprayed and the liquid outlet amount obtained by the liquid outlet flow meter in real time, judging whether the difference value is smaller than a preset threshold value, if so, closing the liquid outlet electromagnetic valve, and stopping spraying pesticide.

8. The Internet of things monitoring method based on the agricultural pesticide spraying device according to claim 7, wherein the step S1 is preceded by the following steps:

the server judges whether the current job task is triggered, if yes, the execution is continued;

the server sends and acquires rainwater information output by the rainwater sensors of all farmlands to the farmland terminal through the second communication module, judges whether the rainfall of each farmland is greater than a rainfall threshold value or not according to the acquired rainwater information, and reminds a user if the rainfall of each farmland is greater than the rainfall threshold value; if not, obtaining a farmland needing to execute the operation;

the server acquires a farmland terminal arranged in a farmland according to the obtained farmland and sends the information and the operation tasks of the current farmland to terminals and/or spraying devices of all operators;

when any operator receives the operation task, whether the distance between the spraying device and the farmland terminal is smaller than a preset distance or not is judged, if yes, information related to the spraying device is sent to the farmland terminal through the first RF module, and the farmland terminal returns the received information to the server.

9. The Internet of things monitoring method based on the agricultural pesticide spraying device according to claim 7, wherein the step S2 specifically comprises the following steps:

s21, initializing a pesticide spraying device;

s22, adding water into a tank body of the pesticide spraying device through a water filling port, and stopping adding water when the water inflow reaches the required water amount; when water is added into the tank body, a water injection flowmeter arranged below a water injection port acquires the water inflow in real time;

s23, an RFID read head arranged below a pesticide injection port identifies an RFID label of a pesticide bottle mouth, whether pesticide corresponding to the RFID label is overdue or not is judged according to the identified RFID label, and if yes, a user is reminded; if not, searching the pesticide proportion amount corresponding to the RFID label according to the identified RFID label, and executing the step S24;

s24, the ARM chip controls the opening of the electromagnetic valve through an electromagnetic valve driving circuit, and pesticides are added into a tank body of the pesticide spraying device through a pesticide injection port; when the pesticide is added into the tank body, a pesticide injection flow meter arranged below a pesticide injection port acquires the pesticide feeding amount in real time;

s25, judging whether the added pesticide amount is equal to the searched pesticide proportion amount or not according to the pesticide feeding amount obtained by the pesticide injection flow meter in real time, if so, closing the electromagnetic valve and stopping pesticide feeding.

10. The Internet of things monitoring method based on the agricultural pesticide spraying device according to claim 7, wherein the step S2 specifically comprises the following steps:

s21, initializing a pesticide spraying device;

s22, adding water into a tank body of the pesticide spraying device through a water filling port, and stopping adding water when the water inflow reaches the required water amount; when water is added into the tank body, a water injection flowmeter arranged below a water injection port acquires the water inflow in real time;

s23, an RFID read head arranged below the injection port identifies an RFID tag at the mouth of the agricultural material bag, whether the medicine corresponding to the RFID tag is overdue or not is judged according to the identified RFID tag, and if yes, a user is reminded; if not, searching the medicine feeding amount corresponding to the RFID label according to the identified RFID label, and executing the step S24;

s24, adding a medicine material to the feeding tray through the injection port; when the medicine is added into the feeding tray, a weighing sensor arranged in the feeding tray measures the weight of the medicine on the feeding tray in real time;

s25, judging whether the weight of the added medicine is equal to the searched medicine feeding amount or not according to the medicine weight obtained by the weighing sensor in real time, if so, stopping feeding, and driving a feeding tray to rotate by a stepping motor so as to enable the medicine to enter the tank body;

s26, after all the medicine materials enter the tank body, starting a stirring motor to drive a stirring head to stir, and when the stirring time reaches the set time, stopping the stirring motor and resetting the stepping motor.

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