Intelligent irrigation instrument and irrigation method

Abstract

The invention discloses an intelligent irrigation instrument and an irrigation method. The intelligent irrigation instrument is provided with a machine shell and a control part located in the machine shell. And the control part comprises a light conversion module, a monostable circuit or a digital delayer, a discrimination and judgment circuit, an NAND gate comprehensive control circuit, a control instruction power amplifier, a sound-light alarm generator, a radio receiving and decoding device and a coding radio transmitter. According to the control instrument, an irrigation time window is automatically generated after natural light detection, and irrigation is automatically carried out in the time window according to the dryness and humidity of soil. Through radio receiving and transmitting, irrigation parameters of the instrument can be remotely controlled, and the water content condition of soil can be monitored. As the irrigation time of the intelligent irrigation instrument is early morning, the optimal irrigation time of the plants is achieved. And as the time window and the dryness and humidity of the soil jointly control the opening and closing of the irrigation valve, even if the dryness and humidity are detected mistakenly, excessive irrigation and irrigation accidents can be effectively prevented.

Description

Technical Field

[0001] The present invention relates to the field of controlling plant watering, and in particular to an intelligent watering device for controlling plant watering and an intelligent watering implementation method. Background Art

[0002] In agriculture, horticulture, and planting, plant watering is crucial, directly impacting plant growth and yield. Traditional plant watering methods rely heavily on manual labor, requiring workers to water plants based on experience and subjective judgment. This method not only consumes significant labor and time, but also lacks precise judgment criteria, making it difficult to optimize irrigation based on the plant's actual water needs and soil moisture content. Low soil moisture levels can go undetected, leading to water shortages and negatively impacting plant growth and development. High soil moisture levels can lead to overwatering, wasting water resources and potentially causing root rot. While some automated watering equipment has emerged with technological advancements, most are limited to simple timed watering and lack comprehensive judgment and intelligent control based on multiple factors, such as ambient light and soil moisture. Furthermore, existing equipment often lacks remote control, preventing users from flexibly adjusting watering parameters according to their needs, resulting in limited user convenience and intelligence. Therefore, there is an urgent need for plant watering equipment that can comprehensively consider multiple environmental factors, achieve precise and intelligent watering, and feature remote control capabilities to meet the demands of modern agriculture and horticulture for efficient and intelligent irrigation. To date, however, existing plant watering control equipment has not been able to automatically water plants within a time window generated by daytime and nighttime light fluctuations. Furthermore, existing watering control equipment is prone to overwatering and loss of control, and lacks the ability to remotely monitor and adjust parameters. Summary of the Invention

[0003] Therefore, in order to solve the above-mentioned deficiencies, the present invention provides an intelligent watering instrument and an intelligent watering implementation method; after using the light changes during the day and night detected by the photosensitive element, one or several time windows are formed by the electronic circuit. Within this time window, watering is also carried out according to the dryness and wetness of the soil detected by the probe. Since watering can only be carried out within the automatically generated time window, even if the probe detects erroneous information, it can effectively prevent over-watering and out-of-control accidents. Transmitting the detected data within the time window can save the occupancy of spatial frequency. The control parameters of the intelligent watering instrument can also be remotely controlled by radio reception and decoding. Starting watering when the light changes from dark to bright in the early morning is the best time to water the plants. The area of ​​the irrigated land can be controlled by adjusting the distance between the two probes. The soil moisture content of important vegetation and other related conditions can be remotely analyzed through the data sent by the intelligent watering instrument.

[0004] The present invention is implemented as follows: an intelligent watering instrument is constructed, having a housing (27) and a control part located in the housing (27), characterized in that the control part includes a light conversion module (2), a monostable circuit or a digital delay device (4), a discrimination judgment circuit (9), a NAND gate integrated control circuit (6), a control instruction power amplifier (16), an audible and visual alarm generator (12), a radio receiving decoder (23), and a coded radio transmitter (20); the output end of the light conversion module (2) is connected to the monostable circuit or the digital delay device (4), The discrimination circuit (9) is externally connected to probe A (33) and probe B (34); the output ends of the monostable circuit or digital time delay (4) and the discrimination circuit (9) are respectively connected to the NAND gate integrated control circuit (6); the output ends of the radio receiving and decoding (23) are respectively connected to the discrimination circuit (9), the monostable circuit or digital time delay (4), and the NAND gate integrated control circuit (6); the output ends of the NAND gate integrated control circuit (6) are respectively connected to the coded radio transmitter (20), the control instruction power amplifier (16), and the sound and light alarm generator (12). After detecting the change of natural light, one or more time windows for watering plants are formed. Only within the time window can watering be automatically carried out according to the soil dryness and humidity detected by the probe. If the probe is damaged, overwatering and loss of control accidents can be prevented. The radio receiving and decoding can remotely adjust the parameters of the watering instrument, and the coded radio transmission can remotely monitor the moisture content of the soil.

[0005] Furthermore, in the present application, the housing (27) is provided with a function text description frame (28), an LED power indicator (29), an LED indicator (30) for watering working status, a buzzer alarm sound output (31), a watering dryness and humidity adjustment hole (32), a working power input jack (35), a voltage and current output hole (36) for controlling the solenoid valve, a light detection hole (37), and a body fixing hole (38).

[0006] Furthermore, in the present application, probe A (33) and probe B (34) are respectively made of a metal material with a diameter of 5 mm and a length of 200 mm, and are welded to the lead wires and input to the discrimination circuit (9). After the discrimination circuit (9) discriminates and judges the moisture content of the soil, it gives a start-stop irrigation signal. This signal passes through the NAND gate and the integrated control circuit (6) to the control command power amplifier (16). The voltage and current output by the control command power amplifier (16) control the start and stop of the valve or water pump.

[0007] Furthermore, in the present application, the size of the housing (27) is 100 mm in length, 65 mm in width, and 40 mm in height. The operating voltage of the whole machine is 12 V DC, and the output control voltage is 12 V DC.

[0008] The present invention provides an intelligent irrigation method based on the above-mentioned intelligent irrigation instrument; the intelligent irrigation method is as follows: the natural light transmitted into the photoelectric conversion module, which changes from dark to bright in the early morning, is converted into a pulse, which is transmitted to a monostable or digital time delay device via a transmission channel. After being triggered and flipped, the output high potential is transmitted to a NAND gate and an integrated control circuit via the transmission channel. The high potential time of the monostable or digital time delay device is the opening time of the NAND gate and the integrated control circuit. The soil dryness and humidity data detected by probes A and probe B are input into the discrimination and judgment circuit via the probe detection signal. The judgment result of the discrimination and judgment circuit is transmitted to the NAND gate and the integrated control circuit via the transmission channel. The opening time of the NAND gate and the integrated control circuit is sufficient to allow the judgment result of the discrimination and judgment circuit to pass. The watering start and stop signal generated by the discrimination and judgment circuit is transmitted to the sound and light alarm generator through the alarm signal transmission channel. The alarm of the sound and light alarm generator controls the buzzer. The alarm signal generated by the sound and light alarm generator controls the light-emitting device through the light alarm output. The instruction output by the NAND gate and the integrated control circuit is transmitted to the control instruction power amplifier through the start or stop watering signal transmission channel, and then controls the water pump or solenoid valve by controlling the voltage and current output of the solenoid valve and the voltage and current output of the water pump. The NAND gate and the integrated control circuit transmit the wireless alarm instruction to the coded radio transmitter through the instruction channel of the coded radio transmitter. The alarm signal generated by the coded radio transmitter is emitted by radio waves. The radio receiver transmits the received signal to the radio signal receiving and decoding module. The instructions decoded by the radio signal receiving and decoding module are transmitted to the discrimination and judgment circuit through the instruction channel, which can adjust the detection parameters of the discrimination and judgment circuit; the instructions decoded by the radio signal receiving and decoding module are transmitted to the monostable or digital time delay device through the instruction channel to adjust the delay time of the monostable or digital time delay device; the instructions decoded by the radio signal receiving and decoding module are transmitted to the NAND gate integrated control circuit through the instruction channel, which constitutes the purpose of remotely controlling the parameters of the intelligent watering instrument.

[0009] The present invention has the following advantages: The present invention provides an intelligent watering instrument that automatically waters plants without manual supervision. It is a control instrument that automatically waters plants according to the dryness and wetness of the soil within a watering time window automatically generated after natural light detection. Through radio reception and transmission, the watering parameters of the instrument can also be remotely controlled and the moisture content of the soil can be monitored. Since the watering time of the intelligent watering instrument is early in the morning, this is the optimal watering time for plants. Since the time window and the dryness and wetness of the soil jointly control the opening and closing of the watering valve, even if there is an error in detecting the dryness and wetness, it can effectively prevent excessive watering and watering accidents. Compared with the existing methods, the intelligent watering instrument of the present invention has significant beneficial effects in the following aspects: (1) High degree of intelligence: Through the coordinated work of the light conversion module and the monostable circuit or digital delay device, it can convert ambient light changes into control signals. Combined with the real-time monitoring of soil dryness and humidity by probes A and B, it can achieve comprehensive judgment of multiple parameters. The discrimination circuit automatically decides whether to start irrigation based on light conditions and soil humidity, without manual intervention, greatly improving the accuracy and automation level of irrigation.

[0010] (2) Dual control mechanism: A NAND gate integrated control circuit is set as the core control unit, which receives both the light-triggered time window signal (from a monostable or digital delay device) and the soil moisture detection signal (from a discrimination circuit). Irrigation is started only when both conditions are met at the same time, effectively avoiding misoperation and ensuring that the timing of irrigation is scientific and reasonable.

[0011] (3) Complete status indication: The housing is equipped with LED power indicator and watering status LED indicator, and the buzzer alarm sound is emitted, so that the user can intuitively understand the working status of the equipment. When the soil moisture is abnormal or the system fails, the sound and light alarm generator will sound an alarm in time, which is convenient for the user to deal with it in time.

[0012] (4) Remote control function: Through the wireless communication system composed of radio receiving decoding and encoding radio transmitter, users can remotely adjust the detection parameters of the discrimination circuit, the delay time of the monostable or digital delay device, and the working mode of the NAND gate integrated control circuit, thereby realizing remote programming and monitoring of the watering meter, which is particularly suitable for large-scale planting or scenes where on-site operation is impossible.

[0013] (5) Compact structure and compatibility: The housing is designed to be small in size, 100mm × 65mm × 40mm. The entire machine is powered by 12V DC, which has low power consumption and is easy to install. The control command power amplifier outputs a 12V DC control signal, which is compatible with mainstream solenoid valves and water pumps on the market, facilitating system integration and upgrades.

[0014] (6) Reliable soil detection: Probes A and B are made of metal with a diameter of 5mm and a length of 200mm. They have sufficient strength and corrosion resistance to penetrate deep into the soil to detect the true moisture condition. The welded lead design ensures stable signal transmission and effectively reduces interference. The function text box and watering dryness and humidity adjustment holes on the housing make it easy for users to quickly understand the device functions and adjust parameters. The body fixing holes facilitate the installation and fixation of the device, improving the convenience of use.

[0015] In summary, the present invention realizes intelligent, precise and remote controllable plant irrigation, significantly improves irrigation efficiency, saves water resources, reduces labor costs, and has broad application prospects and market value. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is the connection diagram of the smart watering meter; Figure 2-4 This is a schematic diagram of the appearance and structural features of the smart watering instrument product; Figure 5 This is the circuit diagram of the smart watering meter.

[0017] Among them: 1. Incoming natural light; 2. Photoelectric conversion module; 3. Trigger pulse transmission channel; 4. Monostable circuit or digital time delay; 5. Monostable state transmission channel; 6. NAND gate and integrated control circuit; 7. Probe detection signal input; 8. Probe detection signal input; 9. Identification and judgment circuit; 10. Identification and judgment result transmission channel; 11. Alarm signal transmission channel; 12. Sound and light alarm generator; 13. Sound alarm control signal output; 14. Light alarm control signal output; 15. Start or stop watering signal transmission channel; 16. Control command power amplifier; 17. Voltage and current output for controlling the solenoid valve; 18. Voltage and current output for controlling the water pump; 19. Command channel for starting the coded radio transmitter; 20. Coded radio generator; 21. Radio wave emission; 22. Radio signal reception; 23. Radio reception and decoding module; 24. Command channel; 25. Command channel; 26. Command channel; 27. Housing; 28. Function description area for the smart watering device; 29. ​​LED indicating power supply; 30. LED indicating watering working status; 31. Sound output hole for buzzer alarm; 32. Hole for adjusting watering humidity; 33. Probe A; 34. Probe B; 35. Power input hole; 36. Voltage and current output port for controlling the electronic valve; 37. Light detection hole; 38. Body fixing hole; 39. Left viewing area for the smart watering device product appearance; 40. Right viewing area for the smart watering device product appearance. DETAILED DESCRIPTION

[0018] The following will be combined with the Figure 1-Figure 5 The present invention is described in detail, and the technical solutions in the embodiments of the present invention are clearly and completely described. Obviously, the embodiments described are only some embodiments of the present invention, not all embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0019] The present invention provides an intelligent watering device to realize intelligent, precise and remote controllable plant watering. Figure 1-Figure 5 As shown, it can be implemented as follows; In embodiment 1, the present invention comprises a housing 27 and a control unit located in the housing 27; Figure 1 As shown; the control part includes a light conversion module 2, a monostable circuit or a digital time delay device 4, a discrimination circuit 9, a NAND gate integrated control circuit 6, a control command power amplifier 16, an audible and visual alarm generator 12, a radio receiving decoder 23, and a coded radio transmitter 20; the output end of the light conversion module 2 is connected to the monostable circuit or the digital time delay device 4, and the discrimination circuit 9 is externally connected to a probe A33 and a probe B34; the output ends of the monostable circuit or the digital time delay device 4 and the discrimination circuit 9 are respectively connected to the NAND gate integrated control circuit 6, and the output ends of the radio receiving decoder 23 are respectively connected to the discrimination circuit 9, the monostable circuit or the digital time delay device 4, and the NAND gate integrated control circuit 6; the output ends of the NAND gate integrated control circuit 6 are respectively connected to the coded radio transmitter 20, the control command power amplifier 16, and the audible and visual alarm generator 12.

[0020] When the intelligent watering instrument of the present invention is implemented, a function text description box 28, an LED power indicator 29, an LED indicator 30 for watering working status, a buzzer alarm sound output 31, a watering dryness and humidity adjustment hole 32, a working power input jack 35, a voltage and current output hole 36 for controlling the solenoid valve, a light detection hole 37, and a body fixing hole 38 are provided on the housing 27.

[0021] When the present invention is implemented, probe A33 and probe B34 are respectively made of a metal material with a diameter of five millimeters and a length of 200 millimeters, and the upper leads are welded to the identification and judgment circuit 9. After the identification and judgment circuit 9 identifies the moisture content of the soil, it gives a start-stop irrigation signal. This signal passes through the NAND gate and the integrated control circuit 6 to the control command power amplifier 16. The voltage and current output by the control command power amplifier 16 control the start and stop of the valve or water pump.

[0022] When the present invention is implemented; the size of the housing 27 is 100 mm long, 65 mm wide and 40 mm high, the operating voltage of the whole machine is 12 volts DC, and the output control voltage is 12 volts DC.

[0023] When the present invention is implemented, the housing 27 serves to carry the electronic circuits and components of the entire machine. The function of the light conversion module 2 is to transform the natural light changes in the early morning into trigger pulses; The function of the monostable or digital time delay device 4 is to form one or more door opening time windows; The function of the probe A33 and the probe B34 is to detect the moisture content of the soil; The function of the discrimination circuit 9 is to discriminate and judge the dryness and humidity of the soil and give a watering signal; The function of the NAND gate integrated control circuit 6 is to water only when the time gate is open; The function of the radio receiving and decoding module 23 is to realize remote control of the watering instrument; The function of the coded radio generator 20 is to transmit the measured soil dryness and wetness conditions; The function of the sound and light alarm generator 12 is to generate an alarm signal during watering; The function of the control command power amplifier 16 is to output the voltage and current for opening the solenoid valve or the water pump.

[0024] The principle of the intelligent watering instrument of the present invention is: Figure 1 The natural light 1 transmits to the photoelectric conversion module 2, and the pulses converted from dark to bright in the morning are transmitted through the transmission channel 3 to the monostable or digital time delay 4. After being triggered, the output high potential is transmitted through the transmission channel 5 to the NAND gate and integrated control circuit 6. The high potential time of the monostable or digital time delay 4 is the open time of the NAND gate and integrated control circuit 6. The soil dryness and moisture data detected by probes A33 and B34 are input to the discrimination and judgment circuit 9 through the probe detection signal. The judgment result of the discrimination and judgment circuit is transmitted to the NAND gate and integrated control circuit 6 through the transmission channel 10. The open time of the NAND gate and integrated control circuit 6 is necessary for the judgment result of the discrimination and judgment circuit 9 to pass. The watering start and stop signal generated by the discrimination circuit 9 is transmitted to the sound and light alarm generator 12 through the alarm signal transmission channel 11, and the alarm of the sound and light alarm generator 12 controls the buzzer. The alarm signal generated by the sound and light alarm generator 12 controls the light-emitting device through the light alarm output 14. The instruction output by the NAND gate and the integrated control circuit 6 is transmitted to the control instruction power amplifier 16 through the start or stop watering signal transmission channel 15, and then output by the voltage and current output 17 of the control solenoid valve and the voltage and current output 18 of the control water pump to control the water pump or the solenoid valve. The NAND gate and the integrated control circuit 6 transmits the wireless alarm instruction to the coded radio transmitter 20 through the instruction channel 19 of the start-coded radio transmitter. The alarm signal generated by the coded radio transmitter 20 is emitted by the radio wave transmitter 21. The radio receiver 22 transmits the received signal to the radio signal receiving and decoding module 23. The instruction decoded by the radio signal receiving and decoding module 23 is transmitted to the discrimination and judgment circuit 9 by the instruction channel 24, which can adjust the detection parameters of the discrimination and judgment circuit 9; the instruction decoded by the radio signal receiving and decoding module 23 is transmitted to the monostable or digital time delay 4 by the instruction channel 25, which adjusts the delay time of the monostable or digital time delay 4; the instruction decoded by the radio signal receiving and decoding module 23 is transmitted to the NAND gate integrated control circuit 6 by the instruction channel 26, which constitutes the purpose of remotely controlling the parameters of the intelligent watering instrument.

[0025] The following further illustrates the implementation of this application: Natural light changes gradually over a short period of time, with inconspicuous variations. Furthermore, due to factors such as weather, the brightness of morning light varies from day to day. The design principle of this application leverages this gradual change in natural light. When the intensity reaches a threshold that triggers a related circuit, the output of the photoelectric conversion module 2, comprised of an electronic circuit, switches from one state to another (from a high potential to a zero potential). This sudden potential change generates a trigger pulse that triggers the next monostable state. This trigger pulse is transmitted to the next monostable circuit, comprised of an RC time constant and related electronic circuitry. The monostable circuit, triggered by the trigger pulse, switches to a high potential for a period of time (a transient state). This transient high potential period represents the watering device's door opening period. During this period, if the soil detection result indicates dryness, the NAND gate must flip when both conditions are met. The output signal is then amplified and used to control the valve for irrigation. Generally, the light conversion module 2 flips twice per day: in the morning, generating a period of door opening, and in the evening, returning to its original state. If the soil is detected to be moist, the NAND gate's input will not be high at the same time as in the evening, and its output will not open the morning irrigation valve. If the soil is detected to be dry, the NAND gate's input will be high at the same time, and its output will open the irrigation valve to allow irrigation. The concept of early morning and evening as a time period essentially reflects the significant changes in light during these periods. The applicant utilizes the time clock generated by these two significant light changes to control irrigation. This method has a simple circuit and reliable performance.

[0026] Combine Figure 5 It can be seen that this is the corresponding principle block diagram, which rigorously and accurately expresses the entire principle architecture of the "watering meter." The functions of each unit can be assembled in different ways, such as by assembling discrete electronic components or by combining an integrated circuit and discrete components to complete their functions. In the schematic diagram of the applicant's example design, the light conversion module 2 is composed of a photodiode, a bias resistor, a voltage buffer capacitor, and an NE555 timer integrated circuit.

[0027] In real-world scenarios, plants can be divided into three types: those that like water, those that don't, and those that are in between. Users of the watering device only need to set the corresponding gear according to the needs of their plants. The electrical schematic diagram also shows a schematic diagram of the gear setting. Each gear actually refers to the length of watering time. If the gear is set to a longer gear, the watering device will start watering when it is exposed to sunlight in the early morning. When the soil is moistened, the watering device will definitely stop watering. Therefore, from the technical principles and practice, it is confirmed that "using this watering device will not overwater the plants, which means that over-watering accidents are prevented." In addition, probe detection errors are nothing more than rust or poor contact of the probe. At this time, the detection judgment is that watering should be carried out. However, due to the time limit of the watering gate, over-watering is impossible.

[0028] from Figure 5 As can be seen from the position of mark 2, when the light conversion module 2 is implemented, the applicant designs Figure 5 The light conversion module 2 in the circuit diagram is composed of a photodiode plus a 100k bias resistor, a 10k voltage input resistor, a 10 microfarad buffer capacitor, a 0.01 microfarad bypass capacitor, and a NE555 time base.

[0029] The above description of the disclosed embodiments is intended to enable one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be readily apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not limited to the embodiments shown herein but is intended to conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An intelligent watering device, comprising a housing (27) and a control portion located within the housing (27), characterized in that; The control part includes a light conversion module (2), a monostable circuit or a digital time delay (4), a discrimination circuit (9), a NAND gate integrated control circuit (6), a control instruction power amplifier (16), an audible and visual alarm generator (12), a radio receiving decoder (23), and a coded radio transmitter (20); the output end of the light conversion module (2) is connected to the monostable circuit or the digital time delay (4), and the discrimination circuit (9) is externally connected to a probe A (33) and a probe B (34); the output ends of the monostable circuit or the digital time delay (4) and the discrimination circuit (9) are respectively connected to the NAND gate integrated control circuit (6), and the output end of the radio receiving decoder (23) is respectively connected to the discrimination circuit (9), the monostable circuit or the digital time delay (4), and the NAND gate integrated control circuit (6); the output end of the NAND gate integrated control circuit (6) is respectively connected to the coded radio transmitter (20), the control instruction power amplifier (16), and the audible and visual alarm generator (12).

2. The intelligent watering device according to claim 1, characterized in that: The housing (27) is provided with a function text description frame (28), a light emitting diode power indicator (29), a watering working state light emitting diode indicator (30), a buzzer alarm sound output (31), a watering dryness and humidity adjustment hole (32), a working power input jack (35), a voltage and current output hole (36) for controlling the solenoid valve, a light detection hole (37), and a body fixing hole (38).

3. The intelligent watering device according to claim 1, characterized in that: The probe A (33) and the probe B (34) are respectively made of a metal material with a diameter of 5 mm and a length of 200 mm. The leads are welded to the discrimination circuit (9). After the discrimination circuit (9) discriminates the moisture content of the soil, it gives a start-stop irrigation signal. This signal passes through the NAND gate and the integrated control circuit (6) to the control command power amplifier (16). The voltage and current output by the control command power amplifier (16) control the start and stop of the valve or water pump.

4. The intelligent watering device according to claim 1, characterized in that: The dimensions of the housing (27) are 100 mm in length, 65 mm in width and 40 mm in height. The operating voltage of the whole machine is 12 V DC, and the output control voltage is 12 V DC.

5. A watering method using the intelligent watering device according to claim 1, characterized in that: The specific method of watering is as follows: natural light (1) is transmitted to the photoelectric conversion module (2), and the pulse converted from the change of light from dark to bright is transmitted to the monostable or digital time delay (4) through the transmission channel (3), and the high potential output is transmitted to the NAND gate and integrated control circuit (6) through the transmission channel (5). The high potential time of the monostable or digital time delay (4) is the opening time of the NAND gate and integrated control circuit (6). At the same time, the soil dryness and humidity data detected by probe A (33) and probe B (34) are input to the discrimination and judgment circuit (9) through the probe detection signal. The result of the judgment of the discrimination and judgment circuit (9) is transmitted to the NAND gate and integrated control circuit (6) through the transmission channel (10). The opening time of the NAND gate and integrated control circuit (6) can allow the judgment result of the discrimination and judgment circuit (9) to pass. The watering start / stop signal generated by the discrimination circuit (9) is transmitted to the sound and light alarm generator (12) through the alarm signal transmission channel (11). The alarm of the sound and light alarm generator (12) controls the buzzer. The alarm signal generated by the sound and light alarm generator (12) controls the light emitting device through the light alarm output (14). The command output by the NAND gate and the integrated control circuit (6) is transmitted to the control command power amplifier (16) through the start or stop watering signal transmission channel (15). The command is then output by the voltage and current output (17) of the control solenoid valve and the voltage and current output (18) of the control water pump to control the water pump or the solenoid valve. The NAND gate and the integrated control circuit (6) transmits the wireless alarm command to the coded radio transmitter (20) through the command channel (19) of the start coded radio transmitter. The coded radio transmitter (20) is connected to the coded radio transmitter (21). The alarm signal generated by the radio transmitter (20) is sent by the radio wave transmitter (21); the radio receiver (22) transmits the received signal to the radio signal receiving and decoding module (23); the instruction decoded by the radio signal receiving and decoding module (23) is transmitted to the discrimination circuit (9) by the instruction channel (24), and the detection parameters of the discrimination circuit (9) can be adjusted; the instruction decoded by the radio signal receiving and decoding module (23) is transmitted to the monostable or digital time delay device (4) by the instruction channel (25), and the delay time of the monostable or digital time delay device (4) is adjusted; the instruction decoded by the radio signal receiving and decoding module 23 is transmitted to the NAND gate integrated control circuit (6) by the instruction channel (26), thereby forming the purpose of remotely controlling the parameters of the intelligent watering instrument.

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