CN215599537U

CN215599537U - Urban afforestation irrigation intelligent control system

Info

Publication number: CN215599537U
Application number: CN202122333846.5U
Authority: CN
Inventors: 唐茂淞; 王洪博; 王兴鹏; 陈海情; 王海瑞
Original assignee: Tarim University
Current assignee: Tarim University
Priority date: 2021-09-26
Filing date: 2021-09-26
Publication date: 2022-01-21
Anticipated expiration: 2031-09-26

Abstract

The urban afforestation irrigation intelligent control system comprises a controller minimum system and an electronic water pump, wherein a water level sensor and a soil humidity sensor are arranged in a region to be irrigated, a water flow sensor is arranged on a water outlet pipe of the electronic water pump, the controller minimum system is connected with an NB-IoT module and a power supply module, and the power supply module is used for providing stable direct-current voltage; the control end of the electronic water pump is connected with the output end of the minimum control system of the controller; the minimum system of the controller respectively collects the water level and the soil humidity of the area to be irrigated through a water level sensor and a soil humidity sensor. The urban greening irrigation intelligent control system not only realizes automatic irrigation of urban greening vegetation, but also solves the problem of insufficient irrigation or excessive irrigation caused by the existing manual operation, realizes accurate and reasonable irrigation, is beneficial to growth of the urban greening vegetation and is beneficial to saving water resources.

Description

Urban afforestation irrigation intelligent control system

Technical Field

The utility model relates to an intelligent control system, in particular to an intelligent control system for urban greening irrigation.

Background

The urban afforestation can bring vitality and vitality to an city, and a life environment pleasing to the mind and body can be created for the city by utilizing the functions of conserving water sources and purifying air of the vegetation. However, the mode of the ordinary sprinkling irrigation of afforestation vegetation in current city is irrigated, and it is long when the artificial setting sprinkling irrigation, arrange the irrigation water yield in, irrigate the back soil moisture and whether reach the requirement then do not have quantitative analysis, just according to the artificial experience, consequently can cause urban afforestation vegetation to irrigate inadequately, perhaps irrigate excessively, neither utilize the reasonable irrigation of vegetation, also can cause the waste of water resource. In recent years, electronic information technology enters a plurality of fields, and therefore, development of urban greening irrigation monitoring and control by advanced means such as intelligent control technology, sensor technology, internet of things technology, big data analysis technology and artificial intelligence technology becomes a trend.

Disclosure of Invention

In order to overcome the defects of the technical problems, the utility model provides an urban greening irrigation intelligent control system.

The urban greening irrigation intelligent control system comprises a controller minimum system and an electronic water pump, wherein the electronic water pump is used for pumping water and irrigating an area to be irrigated, and the controller minimum system has the functions of signal acquisition, data operation and control output; the method is characterized in that: a water level sensor and a soil humidity sensor are arranged in the area to be irrigated, a water flow sensor is arranged on a water outlet pipe of the electronic water pump, the minimum system of the controller is connected with an NB-IoT module and a power supply module, and the power supply module is used for providing stable direct-current voltage; the control end of the electronic water pump is connected with the output end of the minimum control system of the controller;

the water level sensor, the soil humidity sensor and the water flow sensor are connected with an input end of a minimum controller system, the minimum controller system respectively collects the water level and the soil humidity of the area to be irrigated through the water level sensor and the soil humidity sensor, and the water flow sensor acquires the water quantity injected into the area to be irrigated by the electronic water pump; the minimum system of the controller is in wireless communication with the remote upper computer through the NB-IoT module so as to upload information and receive control instructions of the remote upper computer, control the electronic water pump to be turned on and off and realize automatic irrigation.

The utility model discloses an intelligent control system for urban greening irrigation, which comprises a solar charging module, wherein the solar charging module consists of a solar cell panel and a solar power supply voltage stabilizing module, the power supply module consists of a 12V power supply circuit, a 12V-to-5V voltage stabilizing module and a 5V-to-3.3V voltage stabilizing module, the output of the solar power supply voltage stabilizing module is connected to the 12V power supply circuit, and the 12V-to-5V voltage stabilizing module and the 5V-to-3.3V voltage stabilizing module respectively output 5V direct current and 3.3V direct current; the minimum system of the controller adopts a single chip microcomputer with the model of STM32F103C8T6, the NB-IoT module adopts a chip with the model of WH-NB75-B5, the soil humidity sensor is FC-28, the water flow sensor is YF-S401, and the electronic water pump is JT-DS 3W-3.

The urban greening irrigation intelligent control system is characterized in that the water level sensor is provided with an S port, a + port and a-port, the S port is connected with a PA8 port of a singlechip STM32F103C8T6, the + port is connected with the anode of 5V voltage, and the-port is connected with a power ground; the VCC port and GND port of the soil humidity sensor with model FC-28 are respectively connected with the anode of a 5V power supply and the ground of the power supply, the A0 port is connected with the PB15 port of the single chip microcomputer STM32F103C8T6, and the D0 port is suspended.

According to the intelligent control system for urban afforestation irrigation, the + port, the-port and the S port of the YF-S401 type water flow sensor are respectively connected to a 5V voltage positive electrode, a power supply ground and a PB14 port of a single chip microcomputer STM32F103C8T 6; the + port and the-port of the control end of the electronic water pump with model number JT-DS3W-3 are respectively connected with the PB13 port of the single chip microcomputer STM32F103C8T6 and the power ground.

According to the urban greening irrigation intelligent control system, the solar cell panel is provided with the VCC port and the GND port which are used for outputting electric energy, the solar voltage stabilizing module is provided with the IN + port, the IN-port, the OUT + port and the OUT-port, the VCC port and the GND port of the solar cell panel are respectively connected with the IN + port and the IN-port of the solar voltage stabilizing module, the OUT + port of the solar voltage stabilizing module is used for forming a 12V voltage positive pole, and the OUT-port is connected to a power ground.

The utility model discloses an intelligent control system for urban greening irrigation, wherein an NB-IoT module (6) is connected with an indicating circuit, a reset circuit and a refreshing circuit, the indicating circuit consists of a light emitting diode LED1, an LED2, an LED3, an LED4, triodes Q1, Q2, Q3 and Q4, the triodes Q1 and Q2 are NPN type, the triodes Q3 and Q4 are PNP type triodes, the emitting electrodes of the triodes Q1 and Q2 and the collecting electrodes of the triodes Q3 and Q4 are all connected to the ground of a power supply, the collecting electrode of the Q2 is connected to the negative electrode of the LED2, the positive electrode of the LED2 is connected to the positive electrode of a 3.3V power supply through a resistor R16, and the base electrode of the Q2 is connected to a NET port of an NB-IoT module with a model of WH-NB75-B5 through a resistor R17; the collector of the Q1 is connected with the cathode of the LED1, the anode of the LED1 is connected with the anode of the 3.3V power supply through a resistor R14, and the base of the Q1 is connected with the WORK port of the NB-IoT module through a resistor R15;

the emitter of the Q3 is connected with the cathode of the LED3, the anode of the LED3 is connected with the anode of the 3.3V power supply through a resistor R18, and the base of the Q3 is connected with the UTXD1 port of the NB-IoT module through a resistor R19; the emitter of the Q4 is connected with the cathode of the LED4, the anode of the LED4 is connected with the anode of the 3.3V power supply through a resistor R20, and the base of the Q4 is connected with the URXD1 port of the NB-IoT module through a resistor R21;

the RESET circuit consists of a resistor R12, a resistor R13, a capacitor C16 and a RESET key SW3, wherein two ends of the capacitor C16 and the resistor R12 which are connected in series are respectively connected to a power ground and a 3.3V power anode, one end of the RESET key SW3 is connected to a RESET port of the NB-IoT module, and the other end of the RESET key SW3 is connected to the power ground through the R13; the refresh circuit comprises a resistor R10, a resistor R11, a capacitor C15 and a key SW2, wherein two ends of the capacitor C15 and the resistor R10 which are connected in series are respectively connected to a power ground and a 3.3V power supply anode, one end of the key SW2 is connected to a Reload port of the NB-IoT module, and the other end of the key SW2 is connected to the power ground through the R11.

The minimum system of the controller is connected with a power supply indicating circuit, a reset circuit, a BOOT mode configuration circuit, a USB-micro interface circuit, an SWD interface circuit and a crystal oscillator pulse circuit, wherein the power supply indicating circuit consists of a light emitting diode LED and a resistor R1, and two ends of the LED connected with R1 in series are respectively connected to the anode of a 3.3V power supply and the ground of the power supply; the RESET circuit consists of a resistor R2, a capacitor C2 and a key SW1, wherein two ends of the capacitor C2 and the resistor R2 which are connected in series are respectively connected to a power ground and a 3.3V power supply anode, the key SW1 is connected in parallel to two ends of a capacitor C2, and the connection part of the capacitor C2 and the resistor R2 is connected to a RESET port of a single chip microcomputer STM32F103C8T 6; the BOOT mode configuration circuit consists of a 3x2 plug connector P1, ports No. 1 and No. 2 of P1 are connected to the positive pole of a 3.3V power supply, ports No. 5 and No. 6 are connected to the power ground, the port No. 3 is connected to the BOOT0 port of a single chip microcomputer STM32F103C8T6 through a resistor R3, and the port No. 4 is connected to the BOOT1 port of the single chip microcomputer STM32F103C8T6 through a resistor R4;

the Vbus port of the USB-micro interface circuit is connected to the positive pole of a 5V power supply, the ID port and the G port are connected to the power supply ground, the D-port is connected to the PA11 port of the single chip microcomputer STM32F103C8T6 through a resistor R5, the D + port is connected to the PA12 port of the single chip microcomputer STM32F103C8T6 through a resistor R6, and the PA12 port of the single chip microcomputer STM32F103C8T6 is connected to the positive pole of the 5V power supply through a resistor R7; the SWD interface circuit consists of 4P 2 with pin numbers of 1, 2, 3 and 4 respectively, wherein pin 4 and pin 1 of P2 are connected to two ends of a capacitor C1 respectively, pin 4 and pin 1 of P2 are connected to a 3.3V power supply anode and a power ground respectively, and pin 3 and pin 2 of P2 are connected to an SWIO port and an SWDCLK port of a single chip microcomputer STM32F103C8T6 respectively;

the crystal oscillator pulse circuit consists of a crystal oscillator Y1, a crystal oscillator Y2, a resistor R8, a capacitor C3, a capacitor C4, a capacitor C5 and a capacitor C6, wherein two ends of the crystal oscillator Y1 are respectively connected to a PC14 port and a PC15 port of a single chip microcomputer STM32F103C8T6, and two ends of the crystal oscillator Y1 are respectively connected to a power ground through the C3 and the C4; two ends of the resistor R8 are connected with two ends of the crystal oscillator Y2, two ends of the crystal oscillator Y2 are respectively connected with an OSCIN port and an OSCOUT port of the single chip microcomputer STM32F103C8T6, and two ends of the crystal oscillator Y2 are respectively connected with a power ground through C5 and C6.

The urban afforestation irrigation intelligent control system comprises a 12V power supply circuit, wherein a cathode of a storage battery BT1 is grounded, and an anode of the storage battery BT1 forms a 12V power supply end, a 12V-to-5V voltage stabilizing module comprises a chip with the model of LM7805, a capacitor C7, a capacitor C8, a capacitor C9 and a capacitor C10, a Vin port of the LM7805 is connected to the position right above the 12V power supply and is grounded through a capacitor C7 and a capacitor C8, a Vout port of the LM7805 forms an anode of the 5V power supply and is grounded through a capacitor C9 and a capacitor C10, and the GND of the LM7805 is grounded;

the 5V to 3.3V voltage stabilizing module consists of a chip with the model number of AMS1117, a capacitor C11 and a capacitor C12, wherein a Vin port of the AMS1117 is connected to the positive pole of a 5V power supply and is grounded through a capacitor C11, a Vout port of the AMS1117 forms the positive pole of a 3.3V power supply and is grounded through a capacitor C12, and GND of the AMS1117 is grounded.

The utility model has the beneficial effects that: the urban greening irrigation intelligent control system comprises a controller minimum system, an electronic water pump, a water level sensor, a soil humidity sensor, a water flow sensor and an NB-IoT module, wherein the electronic water pump, the water level sensor, the soil humidity sensor, the water flow sensor and the NB-IoT module are connected with the controller minimum system, in the process of irrigating an area to be irrigated of urban greening, the controller minimum system respectively detects the water level and the soil humidity of the area to be irrigated through the water level sensor and the soil humidity sensor, the water flow sensor measures the irrigation water quantity, the NB-IoT module uploads irrigation information to a remote upper computer and receives a control instruction of the remote upper computer, when the water level or the soil humidity of the area to be irrigated reaches a set requirement or the irrigation water quantity reaches the set requirement, the water supply of the electronic water pump is turned off, the irrigation operation is stopped, the automatic irrigation of urban greening vegetation is realized, and the problem of insufficient irrigation or excessive irrigation caused by the operation of people in the prior art is solved, realizes accurate and reasonable irrigation, is beneficial to the growth of urban greening vegetation and the saving of water resources.

Drawings

FIG. 1 is a schematic diagram of an intelligent control system for irrigation of urban landscaping according to the present invention;

FIG. 2 is a circuit diagram of a controller minimum system according to the present invention;

FIG. 3 is a circuit diagram of an NB-IoT module in accordance with the present invention;

FIG. 4 is a circuit diagram of a water level sensor according to the present invention;

FIG. 5 is a circuit diagram of a soil moisture sensor according to the present invention;

FIG. 6 is a circuit diagram of a water flow sensor according to the present invention;

FIG. 7 is a circuit diagram of the electronic water pump of the present invention;

FIG. 8 is a circuit diagram of a solar panel according to the present invention;

FIG. 9 is a circuit diagram of a solar power regulator module according to the present invention;

FIG. 10 is a circuit diagram of a power indicator circuit according to the present invention;

FIG. 11 is a circuit diagram of a reset circuit in the present invention;

FIG. 12 is a circuit diagram of a BOOT mode configuration circuit of the present invention;

FIG. 13 is a circuit diagram of a USB-micro interface circuit according to the present invention;

FIG. 14 is a circuit diagram of an SWD interface circuit of the present invention;

FIG. 15 is a circuit diagram of a crystal oscillator pulse circuit according to the present invention;

FIG. 16 is a circuit diagram of a 12V to 5V regulator module according to the present invention;

FIG. 17 is a circuit diagram of a 5V to 3.3V voltage regulator module according to the present invention;

fig. 18 is a circuit diagram of a 12V power supply circuit of the present invention.

In the figure: the system comprises a controller minimum system 1, an electronic water pump 2, a water level sensor 3, a soil humidity sensor 4, a water flow sensor 5, a 6 NB-IoT module, a power supply module 7 and a solar charging module 8.

Detailed Description

The utility model is further described with reference to the following figures and examples.

As shown in fig. 1, a schematic diagram of an intelligent control system for irrigation for urban landscaping according to the present invention is provided, which is composed of a minimum controller system 1, an electronic water pump 2, a water level sensor 3, a soil humidity sensor 4, a water flow sensor 5, an NB-IoT module 6, a power module 7 and a solar charging module 8, wherein the minimum controller system 1 is composed of a microcontroller, and has functions of signal acquisition, data operation and control output. Water level sensor 3 and soil moisture sensor 4 set up in urban afforestation treat the irrigation zone territory, and water level sensor 3 and soil moisture sensor 4's signal output part all is connected with the signal input part of the minimum system of controller, and the minimum system of controller 1 acquires the water level information of treating the irrigation zone territory through water level sensor 3, treats the soil moisture information of irrigation zone territory through soil moisture sensor 4 collection. The power module 7 is used for providing stable direct current voltage for the minimum controller system 1 and each module, and the solar charging module 8 is used for converting solar energy into electric energy, supplying power to the power module 7 and charging a storage battery in the power module 7.

The electronic water pump 2 is used for pumping water and irrigating an area to be irrigated, and the output end of the minimum controller system 1 is connected with the control end of the electronic water pump 2 and used for controlling the opening and closing of the electronic water pump 2 so as to control the watering state. The water flow sensor 5 is arranged on a water supply pipeline of the electronic water pump 2 and used for measuring the flow of the water supply pipeline and further calculating the irrigation water amount. The NB-IoT module 6 is connected with a communication port of the controller minimum system 1, the controller minimum system 1 realizes wireless communication with a remote upper computer through the NB-IoT module 6 so as to upload acquired data information and working state information to the upper computer, and meanwhile, the remote upper computer sends a control instruction to the controller minimum system 1 through the NB-IoT module 6 so as to control the electronic water pump 2 to be turned on and turned off.

During irrigation, the electronic water pump 2 is opened to the irrigation instruction back of long-range host computer is received to controller minimum system 1 to irrigate the operation, and the regional water level and the soil moisture of real-time detection irrigation, the irrigation water yield of measurement electronic water pump 2 simultaneously, when water level, soil moisture or irrigation water yield reach the settlement requirement, close electronic water pump 2, stop irrigating. Therefore, the urban greening irrigation intelligent control system not only realizes automatic irrigation of urban greening vegetation, but also solves the problem of insufficient irrigation or excessive irrigation caused by the existing manual operation, realizes accurate and reasonable irrigation, is beneficial to growth of the urban greening vegetation and saving water resources.

As shown in fig. 2, a circuit diagram of the minimum controller system of the present invention is shown, and the minimum controller system 1 is composed of a single chip microcomputer of the model STM32F103C8T 6. The solar charging module 8 is composed of a solar cell panel and a solar power supply voltage stabilizing module, and the power supply module 7 is composed of a 12V power supply circuit, a 12V-to-5V voltage stabilizing module and a 5V-to-3.3V voltage stabilizing module. As shown in fig. 18, a circuit diagram of the 12V power supply circuit of the present invention is shown, which is composed of a 12V battery BT1, the negative electrode of the battery BT1 is grounded, and the positive electrode forms the positive electrode of the 12V power supply.

As shown IN fig. 8, a circuit diagram of the solar cell panel of the present invention is shown, and fig. 9 is a circuit diagram of the solar power supply voltage stabilizing module of the present invention, where the voltage output terminals VCC and GND of the solar cell panel are respectively connected to the IN + and IN-ports of the input terminal of the solar power supply voltage stabilizing module, and the OUT + port and OUT-port of the output terminal of the solar power supply voltage stabilizing module are respectively connected to the positive pole of the 12V power supply and the ground, so as to charge the battery BT1 by the solar cell panel.

As shown in fig. 16, a circuit diagram of the voltage stabilizing module from 12V to 5V according to the present invention is shown, the voltage stabilizing module from 12V to 5V is composed of a chip with a model LM7805, and is used for converting a 12V dc into a 5V dc, a capacitor C7, a capacitor C8, a capacitor C9, and a capacitor C10 are disposed on the periphery of the chip LM7805, a Vin port of the LM7805 is connected directly above a 12V power supply and is grounded through a capacitor C7 and a capacitor C8, a Vout port of the LM7805 forms a positive electrode of the 5V power supply and is grounded through a capacitor C9 and a capacitor C10, and a GND of the LM7805 is grounded. The input 12V direct current voltage is filtered by a capacitor C7 and a capacitor C8 and then input to the input end of the LM7805, and the voltage output by the LM7805 is stabilized by a capacitor C9 and a capacitor C10 to form stable 5V voltage output.

As shown in fig. 17, a circuit diagram of the 5V to 3.3V regulator module according to the present invention is shown, wherein the 5V to 3.3V regulator module is formed by a chip of model AMS1117, a Vin port of AMS1117 is connected to a 5V power supply and is grounded via a capacitor C11, a Vout port of AMS1117 forms a positive electrode of a 3.3V power supply and is grounded via a capacitor C12, and GND of AMS1117 is grounded. The 5V voltage is filtered and stabilized by a capacitor C11 and then input to the input end of the AMS1117, and the voltage output by the AMS1117 is filtered and stabilized by a capacitor C12 to form a stable 3.3V direct-current voltage.

As shown in fig. 4, a circuit diagram of the water level sensor of the present invention is shown, the water level sensor 3 is provided with an S port, a + port and a-port, the + port and the-port of the water level sensor 3 are respectively connected to a 5V voltage positive electrode and a power ground, and the S port of the water level sensor 3 is connected to a PA8 port of a single chip microcomputer STM32F103C8T6 to achieve the measurement of the water level.

As shown in fig. 5, a circuit diagram of the soil humidity sensor of the present invention is shown, a VCC port, a GND port, a D0 port and an a0 port are arranged on the soil humidity sensor 4, the VCC port and the GND port of the soil humidity sensor 4 are respectively connected to a 5V voltage positive pole and a power ground, a D0 port is suspended, and an a0 port is connected to a PB15 port of a single chip microcomputer STM32F103C8T6, so as to measure soil humidity in an area to be irrigated.

As shown in fig. 6, a circuit diagram of the water flow sensor of the present invention is shown, the water flow sensor 5 is in the type YF-S401, the water flow sensor 5 is connected in series in the water supply pipeline of the electronic water pump 2 through the water inlet and the water outlet, the + port and the-port of the water flow sensor 5 are respectively connected to the 5V voltage positive pole and the power ground, and the S port is connected to the PB14 port of the single chip microcomputer STM32F103C8T6, so as to measure the irrigation water volume.

As shown in FIG. 7, a circuit diagram of the electronic water pump of the utility model is provided, the model of the electronic water pump 2 is JT-DS3W-3, a + port of a control end of the electronic water pump 2 is connected to a PB13 port of a singlechip STM32F103C8T6, and a-port of the control end of the electronic water pump is connected to a power ground, so that the singlechip can control the on and off states of the electronic water pump 2.

As shown in fig. 3, a circuit diagram of the NB-IoT module in the present invention is shown, the NB-IoT module 6 is used to implement wireless communication between the minimum system 1 of the controller and a remote host computer, the NB-IoT module 6 is composed of a WH-NB75-B5 chip, an indicating circuit, a reset circuit and a refresh circuit, the indicating circuit is used to indicate a communication state, the indicating circuit is composed of a light emitting diode LED1, an LED2, an LED3, an LED4, and triodes Q1, Q2, Q3 and Q4, the triodes Q1 and Q2 are NPN type, the triodes Q3 and Q4 are PNP type triodes, emitters of the triodes Q2 and Q2 and collectors of the transistors Q3 and Q4 are all connected to a power ground, a collector of the Q2 is connected to a negative electrode of the LED2, a positive electrode of the LED2 is connected to a positive electrode of a 3.3V power supply via a resistor R16, a base of the Q16 is connected to a NET port of the NB-NB 16, the led LDE2 is used to indicate that the communication network is normal. The collector of the Q1 is connected with the cathode of the LED1, the anode of the LED1 is connected with the anode of the 3.3V power supply through a resistor R14, and the base of the Q1 is connected with the WORK port of the NB-IoT module through a resistor R15; the light emitting diode LED1 is used to indicate the operational status of the wireless communication network.

The emitter of the Q3 is connected with the cathode of the LED3, the anode of the LED3 is connected with the anode of the 3.3V power supply through a resistor R18, and the base of the Q3 is connected with the UTXD1 port of the NB-IoT module through a resistor R19; the emitter of the Q4 is connected with the cathode of the LED4, the anode of the LED4 is connected with the anode of the 3.3V power supply through a resistor R20, and the base of the Q4 is connected with the URXD1 port of the NB-IoT module through a resistor R21; the light emitting diodes LED3 and LED4 are used to indicate the status of data transmission and reception.

The RESET circuit consists of a resistor R12, a resistor R13, a capacitor C16 and a RESET key SW3, wherein two ends of the capacitor C16 and the resistor R12 which are connected in series are respectively connected to a power ground and a 3.3V power anode, one end of the RESET key SW3 is connected to a RESET port of the NB-IoT module, and the other end of the RESET key SW3 is connected to the power ground through the R13; by pressing reset key SW3, reset restart of NB-IoT module 6 may be achieved. The refresh circuit comprises a resistor R10, a resistor R11, a capacitor C15 and a key SW2, wherein two ends of the capacitor C15 and the resistor R10 which are connected in series are respectively connected to a power ground and a 3.3V power anode, one end of the key SW2 is connected to a Reload port of the NB-IoT module, and the other end of the key SW2 is connected to the power ground through the R11. By pressing key SW2, a refresh of NB-IoT module 6 may be achieved.

As shown in fig. 10, a circuit diagram of the power supply indicating circuit of the utility model is provided, the power supply indicating circuit is composed of a light emitting diode LED and a resistor R1, the anode of the LED is connected to the anode of the 3.3V power supply, and the cathode of the LED is connected to the ground of the power supply through the resistor R1, so that when the 3.3V power supply is normal, the LED will emit light to indicate that the power supply of the single chip microcomputer STM32F103C8T6 is normal.

As shown in fig. 11, a circuit diagram of the RESET circuit of the present invention is provided, the RESET circuit is composed of a resistor R2, a capacitor C2 and a key SW1, two ends of the capacitor C2 and the resistor R2 after being connected in series are respectively connected to a power ground and a 3.3V power positive electrode, the key SW1 is connected in parallel to two ends of a capacitor C2, the connection of the capacitor C2 and the resistor R2 is connected to a RESET port of a single chip STM32F103C8T6, and RESET and restart of the single chip STM32F103C8T6 can be realized by pressing the key SW 1.

As shown in fig. 12, a circuit diagram of the BOOT mode configuration circuit of the present invention is shown, the BOOT mode configuration circuit is composed of a 3x2 plug P1,

ports

1 and 2 of P1 are both connected to the positive electrode of a 3.3V power supply,

ports

5 and 6 are both connected to the ground, port 3 is connected to the BOOT0 port of the single chip microcomputer STM32F103C8T6 through a resistor R3, and port 4 is connected to the BOOT1 port of the single chip microcomputer STM32F103C8T6 through a resistor R4.

As shown in fig. 13, a circuit diagram of the USB-micro interface circuit of the present invention is shown, the USB-micro interface circuit is used to form USB bus communication, the Vbus port of the USB-micro interface circuit is connected to the positive electrode of the 5V power supply, the ID port and the G port are both connected to the ground, the D-port is connected to the PA11 port of the single chip microcomputer STM32F103C8T6 through a resistor R5, the D + port is connected to the PA12 port of the single chip microcomputer STM32F103C8T6 through a resistor R6, and the PA12 port of the single chip microcomputer STM32F103C8T6 is connected to the positive electrode of the 5V power supply through a resistor R7.

As shown in fig. 14, a circuit diagram of the SWD interface circuit of the present invention is shown, the SWD interface circuit is composed of 4P 2 with

pin numbers

1, 2, 3 and 4, pin 4 and pin 1 of P2 are respectively connected to two ends of a capacitor C1, pin 4 and pin 1 of P2 are respectively connected to a 3.3V power supply positive electrode and a power supply ground, pin 3 and pin 2 of P2 are respectively connected to a SWIO port and a SWDCLK port of a single chip STM32F103C8T6, and the SWD interface circuit is used for debugging.

As shown in fig. 15, a circuit diagram of the crystal oscillator pulse circuit according to the present invention is provided, and the crystal oscillator pulse circuit is used for generating two stable pulse signals and inputting the two stable pulse signals into the single chip microcomputer STM32F103C8T6, so as to drive the single chip microcomputer STM32F103C8T6 to normally operate. The crystal oscillator pulse circuit consists of a crystal oscillator Y1, a crystal oscillator Y2, a resistor R8, a capacitor C3, a capacitor C4, a capacitor C5 and a capacitor C6, wherein two ends of the crystal oscillator Y1 are respectively connected to a PC14 port and a PC15 port of a single chip microcomputer STM32F103C8T6, and two ends of the crystal oscillator Y1 are respectively connected to a power ground through the C3 and the C4; two ends of the resistor R8 are connected with two ends of the crystal oscillator Y2, two ends of the crystal oscillator Y2 are respectively connected with an OSCIN port and an OSCOUT port of the single chip microcomputer STM32F103C8T6, and two ends of the crystal oscillator Y2 are respectively connected with a power ground through C5 and C6.

Claims

1. An urban greening irrigation intelligent control system comprises a controller minimum system (1) and an electronic water pump (2), wherein the electronic water pump is used for pumping water and irrigating an area to be irrigated, and the controller minimum system has the functions of signal acquisition, data operation and control output; the method is characterized in that: a water level sensor (3) and a soil humidity sensor (4) are arranged in the area to be irrigated, a water flow sensor (5) is arranged on a water outlet pipe of the electronic water pump, the minimum system of the controller is connected with an NB-IoT module (6) and a power supply module (7), and the power supply module is used for providing stable direct-current voltage; the control end of the electronic water pump is connected with the output end of the minimum control system of the controller;

2. The intelligent urban landscaping irrigation control system according to claim 1, wherein: the solar charging system comprises a solar charging module (8), wherein the solar charging module consists of a solar cell panel and a solar power supply voltage stabilizing module, the power supply module (7) consists of a 12V power supply circuit, a 12V-to-5V voltage stabilizing module and a 5V-to-3.3V voltage stabilizing module, the output of the solar power supply voltage stabilizing module is connected to the 12V power supply circuit, and the 12V-to-5V voltage stabilizing module and the 5V-to-3.3V voltage stabilizing module respectively output 5V direct current and 3.3V direct current; the controller minimum system (1) adopts a single chip microcomputer with the model of STM32F103C8T6, the NB-IoT module (6) adopts a chip with the model of WH-NB75-B5, the soil humidity sensor (4) is FC-28, the water flow sensor (5) is YF-S401, and the electronic water pump (2) is JT-DS 3W-3.

3. The intelligent urban landscaping irrigation control system according to claim 2, wherein: the water level sensor (3) is provided with an S port, a + port and a-port, the S port is connected with a PA8 port of a single chip microcomputer STM32F103C8T6, the + port is connected with the anode of 5V voltage, and the-port is connected with a power ground; the VCC port and GND port of the soil humidity sensor with model FC-28 are respectively connected with the anode of a 5V power supply and the ground of the power supply, the A0 port is connected with the PB15 port of the single chip microcomputer STM32F103C8T6, and the D0 port is suspended.

4. The intelligent urban landscaping irrigation control system according to claim 2, wherein: the + port, -port and S port of the YF-S401 type water flow sensor (5) are respectively connected to a 5V voltage positive electrode, a power ground and a PB14 port of a single chip microcomputer STM32F103C8T 6; the + port and the-port of the control end of the electronic water pump (2) with model number of JT-DS3W-3 are respectively connected with the PB13 port of the single chip microcomputer STM32F103C8T6 and the power ground.

5. The intelligent urban landscaping irrigation control system according to claim 2, wherein: the solar energy voltage stabilizing module is characterized IN that a VCC port and a GND port for outputting electric energy are arranged on the solar cell panel, an IN + port, an IN-port, an OUT + port and an OUT-port are arranged on the solar energy voltage stabilizing module, the VCC port and the GND port of the solar cell panel are respectively connected with the IN + port and the IN-port of the solar energy voltage stabilizing module, the OUT + port of the solar energy voltage stabilizing module is used for forming a 12V voltage anode, and the OUT-port is connected to the ground of a power supply.

6. The intelligent urban landscaping irrigation control system according to claim 2, wherein: the NB-IoT module (6) is connected with an indicating circuit, a reset circuit and a refreshing circuit, the indicating circuit consists of a light emitting diode LED1, an LED2, an LED3, an LED4, triodes Q1, Q2, Q3 and Q4, triodes Q1 and Q2 are NPN type, triodes Q3 and Q4 are PNP type triodes, the emitting electrodes of the triodes Q1 and Q2 and the collecting electrodes of Q3 and Q4 are connected to the ground of a power supply, the collecting electrode of Q2 is connected to the negative electrode of the LED2, the positive electrode of the LED2 is connected to the positive electrode of the 3.3V power supply through a resistor R16, and the base electrode of Q2 is connected to the NET port of the IoT module with the model of WH-NB75-B5 through a resistor R17; the collector of the Q1 is connected with the cathode of the LED1, the anode of the LED1 is connected with the anode of the 3.3V power supply through a resistor R14, and the base of the Q1 is connected with the WORK port of the NB-IoT module through a resistor R15;

7. The intelligent urban landscaping irrigation control system according to claim 2, wherein: the minimum controller system (1) is connected with a power supply indicating circuit, a reset circuit, a BOOT mode configuration circuit, a USB-micro interface circuit, an SWD interface circuit and a crystal oscillator pulse circuit, the power supply indicating circuit consists of a light emitting diode LED and a resistor R1, and two ends of the LED connected with R1 in series are respectively connected to the anode of a 3.3V power supply and the ground of the power supply; the RESET circuit consists of a resistor R2, a capacitor C2 and a key SW1, wherein two ends of the capacitor C2 and the resistor R2 which are connected in series are respectively connected to a power ground and a 3.3V power supply anode, the key SW1 is connected in parallel to two ends of a capacitor C2, and the connection part of the capacitor C2 and the resistor R2 is connected to a RESET port of a single chip microcomputer STM32F103C8T 6; the BOOT mode configuration circuit consists of a 3x2 plug connector P1, ports No. 1 and No. 2 of P1 are connected to the positive pole of a 3.3V power supply, ports No. 5 and No. 6 are connected to the power ground, the port No. 3 is connected to the BOOT0 port of a single chip microcomputer STM32F103C8T6 through a resistor R3, and the port No. 4 is connected to the BOOT1 port of the single chip microcomputer STM32F103C8T6 through a resistor R4;

8. The intelligent urban landscaping irrigation control system according to claim 2, wherein: the 12V power supply circuit consists of a storage battery BT1, the negative electrode of the storage battery BT1 is grounded, the positive electrode of the storage battery BT forms a 12V power supply end, the 12V-to-5V voltage stabilizing module consists of a chip with the model number LM7805, a capacitor C7, a capacitor C8, a capacitor C9 and a capacitor C10, the Vin port of the LM7805 is connected to the positive side of the 12V power supply and is grounded through a capacitor C7 and a capacitor C8, the Vout port of the LM7805 forms the positive electrode of the 5V power supply and is grounded through a capacitor C9 and a capacitor C10, and the GND of the LM7805 is grounded;