Bluetooth remote control sprayer

Abstract

The utility model discloses a kind of bluetooth remote control sprayers, including remote controller end and host end;The remote controller end includes first bluetooth module, and its respectively connected gear button, LED lamp;The host end includes second bluetooth module, and its connection control driving circuit;First bluetooth module is sent gear control signal to second bluetooth module under gear button control, while LED lamp shows gear information.The utility model adopts single-key cycle control design, user only needs to press key to switch between 6 gears quickly, realize the visual distinction of 6 gears by the combination of constant light and flicker of three LED indicator lights, user can confirm current spray intensity instantly, avoid misoperation.The utility model is significantly superior to conventional sprayer in operation convenience, energy consumption control, state feedback and reliability, especially suitable for the efficient operation demand of agricultural, cleaning and horticulture field.

Description

Technical Field

[0001] This utility model relates to sprayers, and more particularly to a Bluetooth remote-controlled sprayer with multi-level adjustable function and LED status indication. Background Technology

[0002] With the increasing demand for spraying equipment in agriculture, horticulture, and sanitation, traditional sprayers typically use mechanical switches or limited wired controls to adjust spray intensity. These devices suffer from the following problems: Inconvenient to operate: Mechanical gear adjustment requires manual switching and cannot be remotely controlled, making it cumbersome to operate, especially in large-scale operations or when using handheld equipment.

[0003] Limited functionality: Most sprayers only support fixed speeds or simple high and low speed switching, lacking refined power adjustment capabilities.

[0004] High power consumption: Some wirelessly controlled sprayers use 2.4G or infrared communication, which requires frequent recharging or battery replacement, affecting the user experience.

[0005] Lack of status feedback: Users cannot intuitively obtain the current gear information, which can easily lead to accidental operation or repeated adjustments.

[0006] In recent years, Bluetooth Low Energy (BLE) technology has been widely used in the field of wireless control, offering advantages such as low power consumption, stable connection, and two-way communication. However, existing Bluetooth-controlled sprayers still have the following shortcomings: No memory function: After manually switching off the sleep mode, the gear needs to be reset, which affects the efficiency of use.

[0007] Limited display methods: Some devices only use a single LED light or buzzer to indicate the status, making it difficult to clearly distinguish between multiple status levels.

[0008] Complex structure: The remote control and the main unit need to be fixed or paired separately, resulting in poor portability.

[0009] Therefore, there is an urgent need for a Bluetooth remote-controlled sprayer that supports multi-level wireless adjustment, visual status display, low power consumption, and memory function to improve user experience and work efficiency. Utility Model Content

[0010] The purpose of this invention is to provide a Bluetooth remote-controlled sprayer to solve the problems of inconvenient operation, limited functionality, high power consumption, and lack of status feedback in existing sprayers. It achieves precise wireless control, convenient speed adjustment, intuitive status display, and reduces device power consumption.

[0011] The technical solution of this utility model is: Bluetooth remote control sprayer, including remote control and main unit; The remote control includes a first Bluetooth module and a gear shift button and an LED light connected thereto. The host terminal includes a second Bluetooth module and a drive circuit for connection control; Under the control of the gear shift button, the first Bluetooth module sends a gear shift control signal to the second Bluetooth module, and at the same time, the LED light displays the gear shift information.

[0012] Preferably, the remote control includes a gear selector button and three LEDs: LED1, LED2, and LED3; wherein: LED1 displays level 1 when constantly lit, and level 2 when flashing; LED2 displays three levels of constant illumination and four levels of flashing illumination. LED3 displays 5 levels of constant illumination and 6 levels of flashing illumination; Each press of the gear selector button toggles the LED indicator display status, with six gear selector states cycling through each other.

[0013] Preferably, the first Bluetooth module has a built-in memory and an MCU. The memory stores gear position information, and the MCU collects gear position button information and controls the display status of the three LEDs.

[0014] Preferably, the second Bluetooth module has a built-in memory and an MCU. The memory stores gear position information, and the MCU controls the water pump power of the host through a drive circuit based on the gear position button information received from the Bluetooth signal.

[0015] Preferably, the water pump is powered by a battery pack on the host side, and the drive circuit uses a MOSFET connected in series on the water pump power supply line. The power is adjusted by the second Bluetooth module through a PWM signal.

[0016] Preferably, the remote control also includes a button battery that supplies power to the first Bluetooth module.

[0017] Preferably, the host unit further includes a voltage regulator module, which converts the battery pack voltage into a stable voltage to supply power to the second Bluetooth module.

[0018] Preferably, a power switch S1 is connected in series between the positive power supply line of the battery pack and the regulated power supply, and a water pump switch S2 is connected in series on the water pump.

[0019] Preferably, the main unit adopts a water gun structure, and the water gun handle is linked to the water pump switch S2. When the handle is released, the water pump switch S2 is disconnected, and when the handle is pressed, the water pump switch S2 is closed.

[0020] Preferably, the remote control end is detachably fixed to the top of the main unit end. Beneficial effects

[0021] The Bluetooth remote-controlled sprayer provided by this utility model has the following significant advantages compared with the prior art: 1. It adopts a single-button cycle control design, which allows users to quickly switch between 6 gears simply by pressing the button, without complicated operation procedures, making it especially suitable for one-handed operation.

[0022] 2. By combining the constant and flashing of three LED indicator lights (e.g., constant LED1 = level 1, flashing = level 2), the six levels can be visually distinguished, allowing users to instantly confirm the current spray intensity and avoid misoperation.

[0023] 3. The remote control is powered by a CR2032 button battery, and combined with BLE broadcast mode and automatic light-off mechanism, it effectively reduces standby power consumption.

[0024] 4. Each time the power switch S1 is closed to restart the main unit, it will automatically default to the highest output level (6 levels) to achieve rapid water output and improve the user experience.

[0025] 5. The Bluetooth module on the remote control has a built-in memory that can remember the last gear used when the controller switch is turned off. After the controller switch is turned on again, the main unit retains the last gear that was remembered, eliminating the need for repeated settings and improving efficiency.

[0026] 6. The remote control can be detached and fixed to the top of the main unit, making it easy to carry and preventing loss, suitable for outdoor mobile scenarios.

[0027] 7. The modular design allows for quick replacement of battery or water pump components, reducing maintenance costs.

[0028] In summary, this invention is significantly superior to traditional sprayers in terms of ease of operation, energy consumption control, status feedback, and reliability, and is especially suitable for the high-efficiency operation needs in agriculture, cleaning, and horticulture. Attached Figure Description

[0029] The present invention will be further described below with reference to the accompanying drawings and embodiments: Figure 1 This is the front view of the Bluetooth remote-controlled sprayer; Figure 2 This is a top view of the Bluetooth remote control. Figure 3 This is a block diagram illustrating the principle of a Bluetooth remote-controlled sprayer. Figure 4 This is a schematic diagram of the battery pack protection module; Figure 5 This is the circuit diagram for the remote control. Figure 6 This is the circuit schematic for the host side; Figure 7 This is the circuit schematic of the current and short-circuit detection module; Figure 8 This is the circuit schematic of a voltage regulator module. Detailed Implementation

[0030] like Figure 1 As shown, the Bluetooth remote control sprayer of this utility model includes a remote control end 1 and a main unit end 2; the main unit end 2 adopts a water gun structure, and the remote control end 1 is detachably fixed to the top of the water gun structure of the main unit end 2, which is convenient to carry and prevents loss, and is suitable for outdoor mobile scenarios.

[0031] like Figure 2 As shown, the remote control terminal 1 includes a gear selector button S0 and three LED lights, wherein: LED1 remains constantly lit to indicate level 1, and flashes every 1 second to indicate level 2; LED2 is always on to indicate level 3, and flashes every 1 second to indicate level 4; LED3 is always on to show level 5, and flashes every 1 second to show level 6; The machine defaults to the highest setting (6 levels) upon startup, providing the strongest spray intensity. Each of the 6 levels can be wirelessly controlled individually via a Bluetooth remote. Each press of a level button cycles through the six levels (1→2→3→4→5→6→1...).

[0032] like Figure 3 As shown, the remote control includes a first Bluetooth module and a gear shift button S0 and an LED light connected to it respectively; the first Bluetooth module adopts WT081070-B8A, which is a high-performance, low-power module with built-in memory and MCU, supports BLE 5.3, has a memory size of 512KB, and has low power consumption function.

[0033] The host unit includes a second Bluetooth module, a drive circuit for its connection and control (mainly composed of a speed-regulating MOSFET Q3), a voltage regulator module (LDO), and a current and short-circuit detection module (mainly composed of a resistor R28 and an RS6332PXK). A power switch S1 is connected in series between the positive power supply line and the voltage regulator, and a water pump switch S2 is connected in series with the water pump M1. The second Bluetooth module also uses the WT081070-B8A.

[0034] Under the control of the gear shift button S0, the first Bluetooth module sends a gear shift control signal to the second Bluetooth module, and simultaneously displays the gear shift information with an LED light. The second Bluetooth module, based on the gear shift button information received via Bluetooth signal, controls the power of the main unit's water pump M1 through a drive circuit.

[0035] like Figure 4As shown, the host also includes a battery pack module. The battery pack is equipped with a charge and discharge protection circuit. The charge and discharge protection circuit uses a protection chip CW1074ALAS. The protection chip collects the voltage of each cell in the battery pack and controls the charge and discharge MOSFETs Q1 and Q2.

[0036] like Figure 5 The diagram shown is the specific circuit schematic for the remote control, the details of which have been described above. The first Bluetooth module, WT081070-B8A, stores the last gear position information in its built-in memory. The MCU collects the gear position button S0 information and controls the display status of the three LEDs. The battery BT1 uses a CR2032 button cell battery. After 10 seconds of inactivity, the remote control lights will automatically turn off, entering a low-power mode.

[0037] like Figure 6 As shown, the second Bluetooth module has a built-in memory and an MCU. The memory stores gear position information, and the MCU controls the power of the water pump M1 of the host through the drive circuit based on the gear position button information received by the Bluetooth signal.

[0038] The water pump M1 is powered by a battery pack on the main unit. The drive circuit uses a speed-regulating MOSFET Q3, which is connected in series on the water pump power supply line. The power is adjusted by the second Bluetooth module via a PWM signal. The PWM signal is connected to the gate of the speed-regulating MOSFET Q3 through a MOSFET drive circuit (mainly composed of transistors Q5, Q6, and Q7).

[0039] The positive and negative terminals M+ and M- of the water pump M1 are also connected to voltage acquisition circuits, which convert the voltage across the water pump M1 into low voltage signals M+ AD and M- AD signals, and send them to the second Bluetooth module.

[0040] like Figure 7 The circuit diagram of the current and short circuit detection module is shown below. The RS6332PXK collects the voltages MC+ and MC across resistor R28, detects the water pump current, generates a current signal MCR_AD or a short circuit signal SHORT, and sends it to the second Bluetooth module.

[0041] like Figure 8 The diagram shown is a circuit schematic of a voltage regulator module (LDO). The LDO converts the battery pack voltage into a stable 3.3V voltage to power devices such as the second Bluetooth module.

[0042] In the water gun structure of the main unit, the power switch S1 is a rocker switch, which closes when the unit is turned on. Each time the power switch S1 is closed, the main unit restarts and automatically defaults to the highest output level (level 6) for rapid water output and improved user experience.

[0043] The water gun handle is linked to the water pump switch S2. When the handle is released, the water pump switch S2 is off; when the handle is pressed, the water pump switch S2 is on. Because the Bluetooth module on the remote control has built-in memory, it can remember the last setting used when the water gun handle was disconnected. After the water gun handle is restarted, the main unit retains the remembered last setting, eliminating the need for repeated settings and improving efficiency.

[0044] The above embodiments are only for illustrating the technical concept and features of this utility model, and are intended to enable those skilled in the art to understand the content of this utility model and implement it accordingly. They should not be construed as limiting the scope of protection of this utility model. All modifications made in accordance with the spirit and essence of the main technical solution of this utility model should be included within the scope of protection of this utility model.

Claims

1. A Bluetooth remote-controlled sprayer, characterized in that, Including the remote control and the main unit; The remote control includes a first Bluetooth module and a gear shift button and an LED light connected thereto. The host terminal includes a second Bluetooth module and a drive circuit for connection control; Under the control of the gear shift button, the first Bluetooth module sends a gear shift control signal to the second Bluetooth module, and at the same time, the LED light displays the gear shift information.

2. The Bluetooth remote-controlled sprayer according to claim 1, characterized in that, The remote control includes a gear selector button and three LEDs: LED1, LED2, and LED3; wherein: LED1 displays level 1 when constantly lit, and level 2 when flashing; LED2 displays three levels of constant illumination and four levels of flashing illumination. LED3 displays 5 levels of constant illumination and 6 levels of flashing illumination; Each press of the gear selector button toggles the LED indicator display status, with six gear selector states cycling through each other.

3. The Bluetooth remote-controlled sprayer according to claim 2, characterized in that, The first Bluetooth module has a built-in memory and an MCU. The memory stores gear position information, and the MCU collects gear position button information and controls the display status of the three LEDs.

4. The Bluetooth remote-controlled sprayer according to claim 2, characterized in that, The second Bluetooth module has a built-in memory and an MCU. The memory stores gear position information, and the MCU controls the water pump power of the host through the drive circuit based on the gear position button information received by the Bluetooth signal.

5. The Bluetooth remote-controlled sprayer according to claim 4, characterized in that, The water pump is powered by the battery pack on the main unit. The drive circuit uses a MOSFET, which is connected in series on the water pump power supply line. The power is adjusted by the second Bluetooth module through a PWM signal.

6. The Bluetooth remote-controlled sprayer according to claim 1, characterized in that, The remote control also includes a button battery that powers the first Bluetooth module.

7. The Bluetooth remote-controlled sprayer according to claim 5, characterized in that, The host unit also includes a voltage regulator module, which converts the battery pack voltage into a stable voltage to power the second Bluetooth module.

8. The Bluetooth remote-controlled sprayer according to claim 7, characterized in that, A power switch S1 is connected in series between the positive power supply line of the battery pack and the regulated power supply, and a water pump switch S2 is connected in series with the water pump.

9. The Bluetooth remote-controlled sprayer according to claim 8, characterized in that, The main unit adopts a water gun structure. The water gun handle is linked to the water pump switch S2. When the handle is released, the water pump switch S2 is disconnected, and when the handle is pressed, the water pump switch S2 is closed.

10. The Bluetooth remote-controlled sprayer according to any one of claims 1-9, characterized in that, The remote control end can be detachably fixed to the top of the main unit.

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