Control method and system, water area propeller and electronic equipment

Abstract

The embodiment of the invention provides a control method, a control system, a water area propeller and electronic equipment. The control method comprises the steps that a first low-voltage power supply output by a battery unit is connected, so that a controller enters a standby state based on the first low-voltage power supply, and the first low-voltage power supply is output under the condition that the battery unit receives a first power-on signal; under the condition that a second power-on signal sent by the interaction unit is received, a second low-voltage power supply is output to the interaction unit based on the first low-voltage power supply, and a third power-on signal is sent to the battery unit, so that the battery unit responds to a third power-on instruction to output a high-voltage power supply to the power unit; receiving a first power-off signal sent by the interaction unit; and in response to the first power-off signal, disconnecting a second low-voltage power supply output to the interaction unit, and sending a second power-off signal to the battery unit, so that the battery unit disconnects a high-voltage power supply output to the power unit.

Description

Technical Field

[0001] This application relates to the field of water-based mobile equipment technology, and in particular to a control method, a control system, a water-based propulsion device, and an electronic device. Background Technology

[0002] Water propulsion devices, such as outboard motors, are detachable power units that are suspended from the stern of boats, dinghies, or other mobile water-based equipment to propel them.

[0003] In related technologies, aquatic propulsion systems can include battery units, interaction units, and power units. The power-on / off logic between the battery unit, interaction unit, and power unit is typically controlled by a separate physical button on the battery side. In this traditional control architecture, once the battery unit is powered on, it outputs high-voltage power to the power unit, thus powering the aquatic propulsion system. The low-voltage power required by the interaction unit is usually obtained by stepping down the high-voltage power from the power unit. This results in a strong coupling between the power unit and the interaction unit in terms of energy supply: when the battery is powered on, both the high-voltage and low-voltage interaction circuits are activated simultaneously; and when the battery is powered off, all units are simultaneously de-energized. Summary of the Invention

[0004] This application provides a control method, a control system, a water propulsion device, and an electronic device.

[0005] In a first aspect, this application provides a control method applied to a controller, the controller being connected to a battery unit and an interaction unit, the method comprising: The controller is connected to a first low-voltage power supply output from the battery unit so that it enters a standby state based on the first low-voltage power supply, which is output when the battery unit receives a first power-on signal. Upon receiving a second power-on signal from the interaction unit, based on the first low-voltage power supply, the system outputs a second low-voltage power supply to the interaction unit and sends a third power-on signal to the battery unit, so that the battery unit outputs a high-voltage power supply to the power unit in response to the third power-on command. Receive the first power-down signal sent by the interactive unit; In response to the first power-down signal, the second low-voltage power supply output to the interaction unit is disconnected, and a second power-down signal is sent to the battery unit, causing the battery unit to disconnect the high-voltage power supply output to the power unit.

[0006] Secondly, this application provides a control method applied to a battery cell, wherein the battery cell is connected to a controller and a power unit, the method comprising: Upon receiving a first power-on signal, the controller outputs a first low-voltage power supply to the controller, so that upon receiving a second power-on signal sent by the interaction unit, the controller outputs a second low-voltage power supply to the interaction unit based on the first low-voltage power supply. Receive the third power-on signal sent by the controller; In response to the third power-on signal, a high-voltage power supply is output to the power unit; The controller receives a second power-down signal sent by the controller. The second power-down signal is output after the controller receives a first power-down signal sent by the interaction unit. The controller disconnects the second low-voltage power supply in response to the first power-down signal. In response to the second power-down signal, the high-voltage power supply is disconnected.

[0007] Thirdly, this application provides a control method applied to an interactive unit, the interactive unit being connected to a controller, the method comprising: Send a second power-on signal to the controller; The controller outputs a second low-voltage power supply in response to the second power-on signal. The second low-voltage power supply is obtained based on the first low-voltage power supply output by the battery cell. The first low-voltage power supply is output when the battery cell receives the first power-on signal. In response to the second power-on signal, the controller also sends a third power-on signal to the battery cell, so that the battery cell outputs high-voltage power to the power unit in response to the third power-on command. A first power-down signal is sent to the controller, causing the controller to disconnect the second low-voltage power supply output to the interaction unit in response to the first power-down signal, and a second power-down signal is sent to the battery unit, causing the battery unit to disconnect the high-voltage power supply output to the power unit.

[0008] Thirdly, this application provides a control system, including: An interaction unit is used to send a second power-on signal and a first power-off signal to the controller, and to connect to the second low-voltage power supply output by the controller; The controller is configured to connect to a first low-voltage power supply output from the battery unit, receive a second power-on signal sent by the interaction unit, output the second low-voltage power supply to the interaction unit based on the first low-voltage power supply, and send a third power-on signal to the battery unit; and receive a first power-off signal sent by the interaction unit, disconnect the second low-voltage power supply in response to the power-off signal, and send a second power-off signal to the battery unit. The battery unit is configured to receive a first power-on signal and, in response to the first power-on signal, output a first low-voltage power supply to the controller; output a high-voltage power supply to the power unit in response to the third power-on signal; and receive a second power-off signal and, in response to the second power-off signal, disconnect the high-voltage power supply.

[0009] Thirdly, this application provides a water propulsion device, including the control system provided in the third aspect above.

[0010] Fourthly, this application provides an electronic device, including a processing component and a storage component; The storage component stores a computer program; the computer program is invoked and executed by the processing component to implement the control method provided in the first aspect, or to implement the control method provided in the second aspect, or to implement the control method provided in the third aspect.

[0011] This embodiment of the application achieves a standby state by having the battery unit independently output a continuous first low-voltage power supply. Subsequently, only upon receiving a second power-on signal from the interaction unit does the controller output a second low-voltage power supply to the interaction unit based on the first low-voltage power supply. Simultaneously, it requests activation of the high-voltage power supply from the battery unit via a communication command, thereby providing high-voltage power to the power unit. Conversely, upon receiving a first power-off signal from the interaction unit, the controller first disconnects the second low-voltage power supply from the interaction unit, then instructs the battery unit to cut off the high-voltage power supply, ultimately returning the system to a standby state maintained solely by the first low-voltage power supply. This fundamentally decouples the energy supply relationships between the interaction unit, controller, and power unit, avoiding the strong coupling defects of related technologies where "high and low voltages are activated simultaneously upon battery power-on, and the entire system is synchronously powered off upon battery power-off." In standby mode, only the controller maintains low-power operation relying on the first low-voltage power supply, while the interaction unit and power unit are completely powered off. This significantly reduces standby power consumption, avoids unnecessary static losses in the high-voltage circuit of the power unit and no-load losses in the high-voltage step-down circuit, effectively extending battery life and slowing down battery degradation.

[0012] These or other aspects of this application will become more apparent in the following description of the embodiments. Attached Figure Description

[0013] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments of this application and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings: Figure 1 A flowchart of an embodiment of a control method provided in this application; Figure 2A flowchart of another embodiment of the control method provided in this application; Figure 3 A flowchart of another embodiment of the control method provided in this application; Figure 4 A schematic diagram of the structure of one embodiment of a control system provided in this application; Figure 5 A schematic diagram of the structure of one embodiment of the control device provided in this application; Figure 6 A schematic diagram of another embodiment of the control device provided in this application; Figure 7 A schematic diagram of another embodiment of the control device provided in this application; Figure 8 This is a schematic diagram of the structure of an embodiment of an electronic device provided in this application. Detailed Implementation

[0014] To make the objectives, technical solutions, and advantages of this application clearer, the technical solutions of this application will be clearly and completely described below in conjunction with specific embodiments and corresponding drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0015] A water propulsion system, such as an outboard motor, is a detachable power unit suspended from the stern of a boat or other mobile aquatic device, capable of propelling the boat or vessel. In related technologies, water propulsion systems typically include a battery unit, an interaction unit, and a power unit. The battery unit provides electrical energy to the entire system, the interaction unit receives user commands and provides a human-machine interface, and the power unit converts electrical energy into propulsion to drive the vessel.

[0016] In the existing control architecture, the power-on / off logic between the battery unit, the interaction unit, and the power unit is typically controlled by a separate physical button on the battery. Specifically, the user triggers the battery's power-on or power-off operation by long-pressing or short-pressing the physical button on the battery unit. Once the battery unit receives the power-on command and completes its self-test, it directly outputs high-voltage power to the power unit, enabling the water propulsion device to obtain full power output capability. Meanwhile, the low-voltage power required by the interaction unit is usually not directly provided by the battery unit, but rather obtained from the high-voltage power supply of the power unit through a step-down conversion circuit (such as a DC-DC step-down module), thereby powering the controller, display screen, button circuit, communication module, and other components of the interaction unit.

[0017] In low-power scenarios such as standby, berthing, or short-term idle periods on a ship, users may only need the controller to remain operational, for example, to perform system self-checks, save navigation data, or await remote commands, without immediately activating the power unit and interaction unit. However, the existing unified power-on / off mechanism forces the high-voltage circuit of the power unit to be activated as soon as the battery is powered on. This results in unnecessary static losses and standby power consumption (including leakage current on the high-voltage side, no-load losses in the step-down circuit, and the continuous power supply requirements of the power unit control circuit) in high-power components such as the motor drive system and power electronics. This significantly increases the overall system energy consumption, shortens the battery's usable range, and accelerates battery cycle life degradation.

[0018] Furthermore, since the low-voltage power supply of the interactive unit relies on high-voltage step-down conversion, any abnormality in the high-voltage circuit of the power unit (such as overvoltage, short circuit, or step-down module failure) may be directly conducted to the low-voltage side, affecting the normal operation of the interactive unit and even preventing users from issuing shutdown or protection commands in a timely manner through the interactive interface, posing certain safety hazards. At the same time, this tightly coupled design limits the fine-grained nature of power management: when the interactive unit contains multiple functional sub-modules (such as display modules, communication modules, sensor interfaces, etc.), independent power supply for specific sub-modules cannot be achieved, further reducing energy utilization efficiency.

[0019] To address the existing technical problems of excessive standby power consumption and serious energy waste, this application provides a solution. The basic idea is as follows: the battery unit independently outputs a continuous first low-voltage power supply, enabling only the controller to enter standby mode. Subsequently, only upon receiving a second power-on signal from the interaction unit, the controller outputs a second low-voltage power supply to the interaction unit based on the first low-voltage power supply, while simultaneously requesting the activation of the high-voltage power supply from the battery unit via communication commands, thereby providing high-voltage power to the power unit. Conversely, upon receiving a first power-off signal from the interaction unit, the controller first disconnects the second low-voltage power supply from the interaction unit, then instructs the battery unit to cut off the high-voltage power supply, ultimately returning the system to a state where only the first low-voltage power supply maintains the controller's standby state. This fundamentally decouples the energy supply relationship between the interaction unit, controller, and power unit, avoiding the strong coupling defects of related technologies where "high and low voltages are activated simultaneously upon battery power-on, and the entire system is synchronously powered off upon battery power-off." In standby mode, only the controller relies on the first low-voltage power supply to maintain low power consumption, while the interaction unit and the power unit are completely powered off. This significantly reduces standby power consumption, avoids unnecessary static losses in the high-voltage circuit of the power unit and no-load losses in the high-voltage step-down circuit, effectively extends battery life and slows down battery life degradation.

[0020] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0021] The implementation details of the technical solutions in the embodiments of this application are described in detail below.

[0022] Figure 1 The flowchart illustrates an embodiment of a control method provided in this application. This method can be applied to a controller connected to a battery unit and an interaction unit. The controller can refer to the control center of a water propulsion system, used to coordinate power management and signal processing. The controller is connected to the battery unit and the interaction unit, where the battery unit can be the power supply device for the water propulsion system, used to store and output electrical energy; the interaction unit can be the user interface for the water propulsion system, used to receive user input and generate corresponding signals, and may include components such as a throttle handle.

[0023] Figure 1 The control method shown may include the following steps: 101: Connect the first low-voltage power supply output by the battery unit so that the controller enters a standby state based on the first low-voltage power supply. The first low-voltage power supply is output when the battery unit receives the first power-on signal. 102: Upon receiving the second power-on signal sent by the interaction unit, based on the first low-voltage power supply, output the second low-voltage power supply to the interaction unit and send the third power-on signal to the battery unit, so that the battery unit outputs high-voltage power supply to the power unit in response to the third power-on command. 103: Receive the first power-down signal sent by the interactive unit; 104: In response to the first power-down signal, disconnect the second low-voltage power supply output to the interaction unit, and send a second power-down signal to the battery unit, causing the battery unit to disconnect the high-voltage power supply output to the power unit.

[0024] In embodiments of this application, the controller can first connect to a first low-voltage power supply output from the battery cell, enabling the controller to enter a standby state based on this first low-voltage power supply. The first low-voltage power supply can be a power output with a lower voltage level to support the basic operation of the controller; for example, the voltage value can be 12V or 24V.

[0025] The first low-voltage power supply is output when the battery cell receives the first power-on signal. This first power-on signal can be an input signal that triggers the initial activation of the battery cell, for example, it can be generated by the user pressing a physical button on the battery cell. Upon receiving this first power-on signal, the battery cell outputs the first low-voltage power supply to the controller. At this time, the controller enters a standby state after connecting to the first low-voltage power supply. In this state, the controller maintains low-power operation but has not yet provided further power output to other units, thereby avoiding unnecessary energy consumption.

[0026] Subsequently, upon receiving the second power-on signal from the interaction unit, the controller outputs the second low-voltage power supply to the interaction unit based on the first low-voltage power supply, and sends the third power-on signal to the battery unit.

[0027] The second power-on signal can be an activation command generated by the interactive unit to indicate that the system is switching from standby to power-on. For example, it can be generated by the user's button operation on the interactive unit. The second low-voltage power supply can be a power output with a lower voltage level to power the interactive unit. For example, the voltage value can be the same as or similar to the first low-voltage power supply.

[0028] The third power-on signal can be a command signal issued by the controller, used to request the battery cell to activate the high-voltage output.

[0029] Upon detecting the second power-on signal, the controller can utilize the first low-voltage power supply as a base, generating and outputting a second low-voltage power supply to the interaction unit via internal circuit conversion or direct transmission. This powers the interaction unit and enables it to respond to user operations. Simultaneously, the controller sends a third power-on signal to the battery unit, which responds by outputting high-voltage power to the power unit. The power unit can be the power output device of a water propulsion system, used to drive the boat forward; it may include components such as a motor drive board, motor, and propeller. The high-voltage power supply can be a higher voltage level output to support the high power requirements of the power unit, for example, a voltage of 48V or higher. By indirectly controlling the high-voltage activation through the low-voltage signal, a chain-like power-on mechanism can be achieved for the system.

[0030] Furthermore, the controller can also receive a first power-down signal sent by the interaction unit, which can be a shutdown command generated by the interaction unit to indicate that the system switches from power-on to standby. For example, it can also be generated by the user's key operation on the interaction unit.

[0031] In response to the first power-down signal, the controller can disconnect the second low-voltage power supply output to the interaction unit and send a second power-down signal to the battery unit. The second power-down signal can be a command signal issued by the controller, requesting the battery unit to cut off the high-voltage output.

[0032] Upon receiving the first power-down signal, the controller first stops the output of the second low-voltage power supply, powering down the interactive unit and halting its operation. Then, it sends a second power-down signal to the battery unit. Responding to this signal, the battery unit disconnects the high-voltage power supply to the power unit, thus powering down the power unit. As a result, the system returns to standby mode, maintaining only the supply of the first low-voltage power supply, ensuring independent energy management and efficient utilization.

[0033] In this embodiment, the controller enters standby mode only by independently outputting a continuous first low-voltage power supply from the battery unit. Subsequently, only upon receiving a second power-on signal from the interaction unit does the controller output a second low-voltage power supply to the interaction unit based on the first low-voltage power supply, while simultaneously requesting activation of the high-voltage power supply from the battery unit via communication commands, thus providing high-voltage power to the power unit. Conversely, upon receiving a first power-off signal from the interaction unit, the controller first disconnects the second low-voltage power supply from the interaction unit, then instructs the battery unit to cut off the high-voltage power supply, ultimately returning the system to a state where only the first low-voltage power supply maintains the controller's standby state. This fundamentally decouples the energy supply relationship between the interaction unit, controller, and power unit, avoiding the strong coupling defects of related technologies where "high and low voltages are activated simultaneously when the battery is powered on, and the entire system is synchronously powered off when the battery is powered off." In standby mode, only the controller maintains low-power operation relying on the first low-voltage power supply, while the interaction unit and power unit are completely powered off, significantly reducing standby power consumption, avoiding unnecessary static losses in the high-voltage circuit of the power unit and no-load losses in the high-voltage step-down circuit, effectively extending battery life and slowing down battery degradation.

[0034] In some embodiments, the interaction unit includes multiple interaction sub-units.

[0035] The interaction subunit can be defined as an independent functional subunit within the interaction unit, used to implement specific user interaction tasks. Examples include display screen subunits, button input subunits, indicator light subunits, or touch sensor subunits. These subunits can work independently or in combination according to system requirements, enhancing the modularity and flexibility of the interaction unit. By subdividing the interaction unit into multiple interaction subunits, the system can manage power distribution selectively, avoiding uniform power supply to all subunits, thereby further optimizing energy efficiency and response speed.

[0036] In some embodiments, upon receiving a second power-on signal from the interaction unit, outputting a second low-voltage power supply to the interaction unit based on the first low-voltage power supply can be specifically implemented as follows: Upon receiving a second power-on signal from the interaction unit, at least one target interaction sub-unit is identified; Based on the first low-voltage power supply, a second low-voltage power supply is output to at least one target interactive subunit.

[0037] In embodiments of this application, after receiving the second power-on signal, the controller can determine at least one target interactive sub-unit, wherein the target interactive sub-unit may include a specific interactive sub-unit that needs to be activated. In one embodiment, the target sub-unit can be determined based on the characteristics of the second power-on signal, a preset system configuration, or the current operating context. Determining the target sub-unit can be implemented through the controller's internal logic circuitry or software algorithm, for example, by parsing signal parameters or querying a predefined mapping table, thereby ensuring that only necessary sub-units are activated and avoiding power waste from irrelevant sub-units. Subsequently, the controller can output a second low-voltage power supply to each of the determined at least one target interactive sub-unit based on the first low-voltage power supply. By outputting the second low-voltage power supply to the determined at least one target interactive sub-unit, power can be provided independently to each target interactive sub-unit. This can be achieved, for example, through multiple independent low-voltage control switches or multi-channel power distribution circuits, with each switch corresponding to one sub-unit, thereby converting or directly transferring the first low-voltage power supply to the second low-voltage power supply and supplying it only to the target interactive sub-unit.

[0038] This separate output method ensures fine-grained power management. For example, in scenarios where only the display needs to work, power is supplied to that sub-unit while other sub-units remain powered off. This allows for the partial activation and efficient operation of interactive units while maintaining low power consumption in the overall standby mode of the system.

[0039] In some embodiments, the controller is connected to the interaction unit and the battery unit via a communication bus.

[0040] The communication bus can be a serial data bus used to transmit digital signals between multiple electronic units, enabling reliable bidirectional communication and command interaction. Examples include a Controller Area Network (CAN) bus, a local interconnect network bus, or an industrial-grade communication bus. This connection method established through the communication bus allows the controller to interact with the interaction unit and battery unit reliably, efficiently, and without interference, thus supporting more flexible and precise system-level power management.

[0041] In this embodiment, the controller receives the second power-on signal sent by the interaction unit, which can be transmitted from the interaction unit to the controller via the communication bus. Specifically, after detecting a user-triggered power-on operation (e.g., a long press of the power button), the interaction unit encapsulates the corresponding second power-on signal into a data frame according to a predefined communication protocol and sends it to the controller via the communication bus. The controller continuously monitors the data flow on the communication bus and, upon receiving a data frame that conforms to the characteristics of the second power-on signal, confirms the validity of the signal, thereby triggering subsequent power control procedures.

[0042] This signal reception method based on the communication bus ensures the reliability and traceability of signal transmission. For example, adding check bits, serial numbers or timestamps can prevent signal loss or mistransmission, and it also facilitates stable communication in complex electromagnetic environments.

[0043] In some embodiments, upon receiving a second power-on signal from the interaction unit, outputting a second low-voltage power supply to the interaction unit based on the first low-voltage power supply can be specifically implemented as follows: Upon receiving the second power-on signal sent by the interaction unit via the communication bus, the second low-voltage power supply is output to the interaction unit based on the first low-voltage power supply.

[0044] When the controller receives a second power-on signal from the interaction unit, the second power-on signal may be transmitted from the interaction unit to the controller via a communication bus.

[0045] After the interaction unit detects a user-triggered power-on operation, it formats the second power-on signal into a data packet according to a pre-agreed communication protocol and sends it to the controller via the communication bus. The controller can continuously monitor the data flow on the communication bus through its built-in communication interface module. When it detects a data packet carrying the second power-on signal identifier, it decodes, verifies, and parses it to confirm the signal's legitimacy and integrity. Once the second power-on signal is confirmed to be valid, the controller uses the currently connected first low-voltage power supply as its power base and outputs the second low-voltage power to the interaction unit through its internal power management circuit or a dedicated low-voltage output channel.

[0046] The output path of the second low-voltage power supply can be an independent power supply line, physically separate from the communication bus but logically working together: the communication bus is responsible for transmitting control commands and status information, while the power supply line is responsible for the actual energy transfer.

[0047] This implementation method, which involves immediately outputting a second low-voltage power supply after receiving a second power-on signal via a communication bus, ensures that the response delay between user operation and power-on of the interactive unit is minimized, while maintaining high reliability of signal transmission. For example, the inherent error detection and retransmission mechanisms in the bus protocol can be used to deal with electromagnetic interference or line jitter that may occur in the operating environment of the water propulsion unit.

[0048] In some embodiments, sending a third power-on signal to the battery cell can be specifically implemented as follows: A third power-on signal is sent to the battery cell via the communication bus.

[0049] The controller can generate a third power-on signal based on preset control logic. This third power-on signal may contain a specific command code, serial number, and possible verification information to ensure the traceability and tamper-proof nature of the command. Subsequently, the controller encapsulates the third power-on signal into a data frame conforming to the communication bus protocol and sends it to the communication bus through its communication interface module. Upon receiving the data frame transmitted via the communication bus, the battery unit's communication interface module performs protocol parsing, authentication, and command validity checks. If all is confirmed to be correct, it triggers the high-voltage power control circuit inside the battery unit to close the corresponding switch, thereby outputting high-voltage power to the power unit.

[0050] This method of sending a third power-on signal via a communication bus allows the high-voltage activation stage of the entire power-on process to be driven by digital commands from the low-voltage side, eliminating the need for high-voltage control cables between the controller and the battery unit. This significantly improves the electrical isolation level and safety of the system, while also facilitating flexible configuration of the command content during the system design phase. For example, it allows for the addition of security enhancements such as timeout protection, multiple confirmations, or permission verification.

[0051] In some embodiments, after disconnecting the second low-voltage power supply output to the interaction unit in response to the first power-down signal, and sending a second power-down signal to the battery unit to cause the battery unit to disconnect the high-voltage power supply output to the power unit, the method may further include: The controller enters standby mode based on the first low-voltage power supply and performs preset tasks in standby mode.

[0052] In the embodiments of this application, after receiving the first power-down signal, the controller can first disconnect the second low-voltage power supply. This operation can be achieved through an internal power control circuit or a dedicated switch, causing the interaction unit to lose power supply and stop working. Subsequently, the controller sends a second power-down signal to the battery unit. This signal is transmitted via the communication bus. After receiving and parsing the signal, the battery unit executes the disconnection action of its internal high-voltage power switch, thereby cutting off the high-voltage power supply to the power unit. At this time, both the power output of the water propulsion device and the user interaction part are powered down, and the system smoothly transitions from the power-on state to the standby state.

[0053] After this transition is complete, the controller itself is not completely powered off, but continues to rely on the currently connected first low-voltage power supply to enter standby mode. Standby mode is a low-power operating state for the controller. In this state, the controller's main functional modules are in hibernation or extremely low-power wake-up mode, but some core processors, memory, and necessary peripheral interfaces remain active to support limited background computing and monitoring capabilities. The first low-voltage power supply, as a continuous low-voltage source, ensures that the controller can maintain this mode for a long time without activating the interaction unit and power unit, thereby avoiding the power waste and startup delay caused by frequent complete power-on and power-off cycles.

[0054] In standby mode, the controller can execute preset tasks. These preset tasks can be background operations that need to be executed periodically or triggered by events during periods of system inactivity, aiming to maintain the integrity of system monitoring, data continuity, and remote connectivity.

[0055] In some embodiments, the preset task includes at least one of a system monitoring task, a status recording task, and a remote communication task.

[0056] In one possible implementation, the controller can periodically or in response to specific events wake up relevant modules to complete tasks based on pre-programmed firmware logic or configurable parameter tables. For example, preset tasks may include system monitoring tasks, such as real-time detection of changes in key parameters like battery voltage, temperature, and current, and logging or triggering alarms in case of anomalies; status recording tasks, such as periodically writing system operation history, fault codes, or usage duration to non-volatile memory to support subsequent diagnostics and maintenance; and remote communication tasks, such as maintaining a heartbeat connection with a remote server, uploading device status data, or receiving firmware update commands via the controller's built-in or external communication modules (such as wireless modules or wired network interfaces). These tasks are all executed under low-power supply from a primary low-voltage power supply, typically using interrupt-driven or timed wake-up mechanisms to keep average power consumption at extremely low levels, such as a few milliamps or even lower, thereby significantly extending the battery cell's standby time while ensuring the system can quickly respond to user power-on operations when needed.

[0057] In some embodiments, upon receiving a second power-on signal from the interaction unit, outputting a second low-voltage power supply to the interaction unit based on the first low-voltage power supply can be specifically implemented as follows: In response to the second power-on signal, the low-voltage control switch is closed to output the first low-voltage power supply as the second low-voltage power supply to the interactive unit.

[0058] In the embodiments of this application, after the controller detects and confirms the validity of the second power-on signal, it can close the low-voltage control switch in response to the second power-on signal. The low-voltage control switch can be a dedicated power switching device internal to the controller or directly associated with it, used to control the on / off path of the first low-voltage power supply to the interaction unit. For example, it can be a relay, MOSFET power switch, solid-state relay, or other electronic switching elements with low on-resistance and fast switching characteristics. One end of the low-voltage control switch is connected to the output terminal of the first low-voltage power supply, and the other end is connected to the power input terminal of the interaction unit, and the on / off state is switched under the action of the controller's drive signal.

[0059] When the controller responds to the second power-on signal, its internal logic circuit or processor outputs a corresponding drive signal (e.g., a high-level or pulse signal) to drive the low-voltage control switch from the open state to the closed state. After the low-voltage control switch is closed, the first low-voltage power supply, either directly or after passing through a small number of filtering and voltage-stabilizing components, is continuously output as the power supply line to the interaction unit as the second low-voltage power supply, enabling the interaction unit to quickly obtain operating voltage and start its internal circuits, such as activating the display screen, key scanning circuit, or communication interface module.

[0060] This implementation of a closed low-voltage control switch ensures that the output of the second low-voltage power supply is essentially a controlled transfer of the first low-voltage power supply, rather than being generated through a separate buck converter circuit. This simplifies circuit design, reduces power consumption, and improves power conversion efficiency. Furthermore, since the response time of the low-voltage control switch is typically in the microsecond to millisecond range, this mechanism ensures an extremely short delay between receiving the second power-on signal and the power-on of the interactive unit, supporting an instant feedback experience for user operation. In addition, the closing action of this switch can be synchronized with other control logic of the controller, such as initiating the initialization program or communication handshake process of the interactive unit simultaneously with closing the switch, further enhancing system coordination.

[0061] In actual circuit layout, the low-voltage control switch can be integrated into the power management module of the controller, or controlled as an independent peripheral device through GPIO pins or dedicated drive channels.

[0062] To ensure reliability, the low-voltage control switch can also be equipped with auxiliary circuits such as overcurrent protection, short-circuit detection, or reverse current blocking to prevent accidental switching or damage in the complex electromagnetic environment of the water propeller or under power fluctuation conditions. After closing, the first low-voltage power supply is stably supplied to the interaction unit through this path until the switch is disconnected during the subsequent power-down process.

[0063] Figure 2 The flowchart shows another embodiment of a control method provided in this application, which can be applied to a battery cell connected to a controller and a power unit.

[0064] Figure 2 The control method shown may include the following steps: 201: Upon receiving the first power-on signal, output the first low-voltage power supply to the controller, so that when the controller receives the second power-on signal sent by the interaction unit, it outputs the second low-voltage power supply to the interaction unit based on the first low-voltage power supply; 202: Receive the third power-on signal sent by the controller; 203: In response to the third power-on signal, output high-voltage power to the power unit; 204: Receive the second power-down signal sent by the controller. The second power-down signal is output by the controller after receiving the first power-down signal sent by the interaction unit. The controller disconnects the second low-voltage power supply in response to the first power-down signal. 205: In response to the second electrical signal, disconnect the high-voltage power supply.

[0065] The detailed implementation methods and beneficial effects of each step in this embodiment have been described in detail in the foregoing embodiments, and will not be elaborated here.

[0066] Figure 3 The flowchart shows another embodiment of a control method provided in this application. This method can be applied to an interactive unit, which is connected to a controller.

[0067] Figure 3 The control method shown may include the following steps: 301: Send a second power-on signal to the controller; 302: The access controller outputs a second low-voltage power supply in response to the second power-on signal. The second low-voltage power supply is obtained based on the first low-voltage power supply output by the battery cell. The first low-voltage power supply is output when the battery cell receives the first power-on signal. The controller also sends a third power-on signal to the battery cell in response to the second power-on signal, so that the battery cell outputs a high-voltage power supply to the power unit in response to the third power-on command. 303: Send a first power-down signal to the controller, causing the controller to disconnect the second low-voltage power supply output to the interaction unit in response to the first power-down signal, and send a second power-down signal to the battery unit, causing the battery unit to disconnect the high-voltage power supply output to the power unit.

[0068] The detailed implementation methods and beneficial effects of each step in this embodiment have been described in detail in the foregoing embodiments, and will not be elaborated here.

[0069] Figure 4 A schematic diagram of the structure of one embodiment of the control system provided in this application is shown below. Figure 4As shown, the system may include: The interaction unit 401 is used to send a second power-on signal and a first power-off signal to the controller 402, and to connect to the second low-voltage power supply output by the controller 402. The controller 402 is used to connect to the first low-voltage power supply output by the battery unit, receive the second power-on signal sent by the interaction unit 401, output the second low-voltage power supply to the interaction unit 401 based on the first low-voltage power supply, and send the third power-on signal to the battery unit; and receive the first power-off signal sent by the interaction unit 401, disconnect the second low-voltage power supply in response to the power-off signal, and send the second power-off signal to the battery unit 403. Battery unit 403 is configured to receive a first power-on signal and output a first low-voltage power supply to controller 402 in response to the first power-on signal, output a high-voltage power supply to power unit in response to a third power-on signal, and receive a second power-off signal and disconnect the high-voltage power supply in response to the second power-off signal.

[0070] In the embodiments of this application, the control system includes an interaction unit, a controller, a battery unit, and a power unit. The interaction unit can be a user interface for receiving user input and generating control signals. For example, it can be implemented as a throttle handle, which integrates a power button, a mode switching button, a menu option confirmation button, and a display screen. The controller can be the control center of the system for coordinating power distribution and signal processing. For example, it can be implemented as an Electronic Control Unit (ECU), which includes a processor, a power management circuit, and a communication interface. The battery unit can be a power supply device for storing electrical energy and outputting power at different voltage levels according to instructions. For example, it can include a lithium-ion battery pack, a power switch circuit, and a communication module. The power unit can be a propulsion power output device for driving the boat. For example, it can include a motor drive board, a motor, and a propeller.

[0071] In the system architecture of this application embodiment, the interaction unit can be connected to the controller via a communication bus to send a second power-on signal and a first power-off signal to the controller, and access the second low-voltage power supply output by the controller. The second power-on signal can be a command signal to activate the system, such as generated by the user pressing and holding the power button on the accelerator lever. The first power-off signal can be a command signal to switch to standby mode, which can also be generated by pressing and holding the same button. The second low-voltage power supply can be a controlled power supply output with a lower voltage level to power the operation of the interaction unit, for example, the voltage value can be 12V. The controller receives a first low-voltage power supply from the battery unit. This first low-voltage power supply can be a continuous low-voltage level power supply to support the controller's standby operation; for example, the voltage value can be 12V. After receiving a second power-on signal from the interaction unit, the controller outputs a second low-voltage power supply to the interaction unit based on the first low-voltage power supply. This output is achieved through a low-voltage control switch inside the controller. This switch closes in response to the second power-on signal, directly transferring or converting the first low-voltage power supply to supply the interaction unit as the second low-voltage power supply. Simultaneously, the controller sends a third power-on signal to the battery unit. This third power-on signal can be a command signal requesting the activation of high voltage, transmitted via the interactive CAN bus. The controller also receives a first power-off signal from the interaction unit, disconnects the output of the second low-voltage power supply in response to this signal, for example, by disconnecting the low-voltage control switch, and sends a second power-off signal to the battery unit. This second power-off signal can be a command signal requesting the disconnection of high voltage, also transmitted via the interactive CAN bus. The battery unit receives a first power-on signal, which can be an input signal for initial battery activation, such as generated by a user pressing and holding a physical button on the battery. In response to the first power-on signal, it outputs a first low-voltage power supply to the controller. In response to a third power-on signal, it outputs a high-voltage power supply to the power unit, where the high-voltage power supply can be a higher voltage level power source to support the high power requirements of the power unit, for example, a voltage of 48V. Furthermore, the battery unit receives a second power-off signal and, in response to this signal, disconnects the high-voltage power supply output. The power unit begins operation after connecting to the high-voltage power supply, providing propulsion for the boat.

[0072] In the embodiments of this application, the battery unit can be used to provide high-voltage and low-voltage power supplies. Its input includes a battery button signal (corresponding to a first power-on signal), and its output includes a first low-voltage power supply and a high-voltage power supply. The communication bus is an interactive bus (e.g., an interactive CAN bus). The controller (ECU) serves as the control center of the water propulsion system. Its input includes a first low-voltage power supply and an interactive button signal (corresponding to a second power-on signal and a first power-off signal). Its output includes a second low-voltage power supply (low voltage 2). The communication bus includes an interactive CAN bus (for communication with the battery unit and the interactive unit) and a power CAN bus (for communication with the power unit). The interactive unit (throttle handle) receives user operation commands. Its input includes a second low-voltage power supply and an interactive button signal. The communication bus is an interactive CAN bus. The power unit is responsible for power output. Its input includes a high-voltage power supply, and its output is zero. The communication bus is a power CAN bus.

[0073] In actual operation, the system initially operates with the battery off, resulting in no first low-voltage power output and no high-voltage power output. After the user connects the battery to the water propulsion system, pressing and holding the battery button generates the first power-on signal, switching the battery to the power-on state and outputting the first low-voltage power to the controller. At this point, the high-voltage power is still not output. The first low-voltage power powers the controller, but the second low-voltage power is not output, the interaction unit is not powered, and the entire boat system (which can be a combination of the controller, power unit, and interaction unit) is in standby mode. In this standby state, the user presses and holds the power button at the interaction unit location, generating the second power-on signal. This signal is directly transmitted to the controller, switching the system to the power-on state. The controller responds to the second power-on signal by closing its internal low-voltage control switch (located between the first and second low-voltage power supplies), starting to output the second low-voltage power. The interaction unit is powered on and begins operation; for example, the display screen lights up, and the buttons respond to user input. At the same time, the controller sends a third power-on signal to the battery unit via the interactive CAN bus, requesting the high-voltage power switch to be closed. After the battery unit responds, it outputs high-voltage power, and the power unit is powered on and starts the motor and propeller to provide propulsion power.

[0074] When the system is powered on, the user presses and holds the power button on the interactive unit again to generate the first power-down signal. This signal is transmitted to the controller, and the system switches back to standby mode. The controller responds to the first power-down signal by first disconnecting the low-voltage control switch, cutting off the second low-voltage power output, and powering down the interactive unit. Then, it sends a second power-down signal to the battery unit via the interactive CAN bus, requesting the high-voltage power switch to be disconnected. The battery unit responds and cuts off the high-voltage power, powering down the power unit. If the water propulsion unit is not in operation for an extended period, the user can press and hold the battery button while the battery is powered on to generate a power-down signal, causing the battery to shut off the first low-voltage power output, completely de-energizing the entire system. During this process, the controller must respond to the shutdown request within 500ms after sending the second power-down signal to ensure the timeliness and safety of the power-down process.

[0075] This application embodiment implements a chain-style hierarchical power-on / off method through the above system design, namely, a sequential wake-up process of "battery unit → controller → interaction unit → high-voltage power". The low-voltage power supply is divided into a first low-voltage power supply that provides continuous power and a second low-voltage power supply with controlled output, achieving a power management mode where only the controller remains operational in standby mode, and the interaction unit consumes zero power. Simultaneously, the controller sends commands to the battery unit via the communication bus to remotely control the on / off state of the high-voltage power supply. Therefore, users only need to operate at the interaction unit to complete system power-on and standby, making operation convenient. In standby mode, only the first low-voltage power supply is maintained, allowing the controller to continue operating and supporting background tasks such as data uploading, while the interaction unit is powered off to reduce power consumption. The high-voltage power supply is cut off in standby mode, reducing static power consumption and improving system safety.

[0076] This application embodiment also provides a water propulsion device, including... Figure 4 The control system shown.

[0077] Figure 5 This is a schematic diagram of one embodiment of a control device provided in this application. The device can be applied to a controller, which is connected to a battery unit and an interaction unit. Figure 4 As shown, the system may include: The first access module 501 is used to access the first low-voltage power supply output by the battery unit so that the controller enters a standby state based on the first low-voltage power supply. The first low-voltage power supply is output when the battery unit receives the first power-on signal. The first output module 502 is used to output a second low-voltage power supply to the interaction unit based on the first low-voltage power supply when it receives a second power-on signal sent by the interaction unit, and to send a third power-on signal to the battery unit so that the battery unit outputs a high-voltage power supply to the power unit in response to the third power-on command. The first receiving module 503 is used to receive the first power-down signal sent by the interactive unit; The first disconnect module 504 is used to disconnect the second low-voltage power supply output to the interaction unit in response to the first power-down signal, and to send a second power-down signal to the battery unit so that the battery unit disconnects the high-voltage power supply output to the power unit.

[0078] Figure 5 The control device can perform Figure 1 The implementation principle and technical effects of the control method in the illustrated embodiment will not be repeated here. The specific methods by which each module and unit of the control device in the above embodiments performs its operations have been described in detail in the embodiments related to the method, and will not be elaborated upon here.

[0079] Figure 6 This is a schematic diagram of another embodiment of a control device provided in this application. The device can be applied to a battery cell, which is connected to a controller and a power unit. Figure 4 As shown, the system may include: The second output module 601 is used to output a first low-voltage power supply to the controller when a first power-on signal is received, so that when the controller receives a second power-on signal sent by the interaction unit, it outputs a second low-voltage power supply to the interaction unit based on the first low-voltage power supply. The second receiving module 602 is used to receive the third power-on signal sent by the controller; The third output module 603 is used to output high-voltage power to the power unit in response to the third power-on signal; The third receiving module 604 is used to receive the second power-down signal sent by the controller. The second power-down signal is output after the controller receives the first power-down signal sent by the interaction unit. The controller disconnects the second low-voltage power supply in response to the first power-down signal. The second disconnect module 605 is used to disconnect the high-voltage power supply in response to the second power-down signal.

[0080] Figure 6 The control device can perform Figure 2 The implementation principle and technical effects of the control method in the illustrated embodiment will not be repeated here. The specific methods by which each module and unit of the control device in the above embodiments performs its operations have been described in detail in the embodiments related to the method, and will not be elaborated upon here.

[0081] Figure 7 This is a schematic diagram of another embodiment of a control device provided in this application. The device can be applied to an interaction unit, which is connected to a controller. Figure 4 As shown, the system may include: The first transmitting module 701 is used to send a second power-on signal to the controller; The second access module 702 is used to access the second low-voltage power supply output by the controller in response to the second power-on signal. The second low-voltage power supply is obtained based on the first low-voltage power supply output by the battery unit. The first low-voltage power supply is output when the battery unit receives the first power-on signal. In response to the second power-on signal, the controller also sends a third power-on signal to the battery unit so that the battery unit outputs high-voltage power to the power unit in response to the third power-on command. The second transmitting module 703 is used to send a first power-down signal to the controller, causing the controller to disconnect the second low-voltage power supply output to the interaction unit in response to the first power-down signal, and to send a second power-down signal to the battery unit, causing the battery unit to disconnect the high-voltage power supply output to the power unit.

[0082] Figure 7 The control device can perform Figure 3 The implementation principle and technical effects of the control method described in the illustrated embodiments will not be repeated here. The specific methods by which each module and unit of the control device in the above embodiments performs its operations have been described in detail in the embodiments related to the method, and will not be elaborated upon here.

[0083] It should be noted that some processes described in the above embodiments and accompanying drawings include multiple operations appearing in a specific order. However, it should be clearly understood that these operations may not be executed in the order they appear in this document, or they may be executed in parallel. The operation numbers, such as 101, 102, etc., are merely used to distinguish different operations and do not represent any execution order. Furthermore, these processes may include more or fewer operations, and these operations may be executed sequentially or in parallel. It should also be noted that the descriptions such as "first" and "second" in this document are used to distinguish different messages, devices, modules, etc., and do not represent a sequential order, nor do they limit "first" and "second" to different types.

[0084] Figure 8 This is a schematic diagram of the structure of one embodiment of an electronic device provided in this application. Figure 8 As shown, in practice, the electronic device may include a storage component 801 and a processing component 802.

[0085] Storage component 801 is used to store computer programs and can be configured to store various other data to support operation on the electronic device. Examples of this data include instructions for any application or method used to operate on the electronic device, data structures, contact data, phone book data, messages, pictures, videos, etc.

[0086] Processing component 802, coupled to storage component 801, is used to execute computer programs in storage component 801 for implementing, etc. Figure 1The control method shown, or the implementation as follows Figure 2 The control method shown, or the implementation as follows Figure 3 The control method shown.

[0087] Furthermore, such as Figure 8 As shown, the electronic device may also include other components such as a communication component 803, a display component 804, a power supply component 805, and an audio component 806. Figure 8 The diagram only shows some components and does not mean that the device includes only these components. Figure 8 The components shown. Additionally... Figure 8 The components within the dashed box are optional, not mandatory, and their specific configuration depends on the form factor of the electronic device. The electronic device in this embodiment can be a terminal device such as a desktop computer, laptop computer, smartphone, or IoT (Internet of Things) device, or a server-side device such as a conventional server, cloud server, or server array. If the electronic device in this embodiment is a terminal device such as a desktop computer, laptop computer, or smartphone, it may include... Figure 8 The components within the dashed box; if the electronic device in this embodiment is implemented as a conventional server, cloud server, or server array, etc., it may be omitted. Figure 8 The component within the dashed box.

[0088] The processing component described above includes one or more processors to execute computer instructions to complete all or part of the steps in the method described above. Alternatively, the processing component may be implemented as one or more application-specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), field-programmable gate arrays (FPGAs), controllers, microcontrollers, microprocessors, or other electronic components to perform the method described above.

[0089] The aforementioned storage components can be implemented by any type of volatile or non-volatile storage device or a combination thereof, such as Static Random-Access Memory (SRAM), Electrically Erasable Programmable Read Only Memory (EEPROM), Erasable Programmable Read Only Memory (EPROM), Programmable Read-Only Memory (PROM), Read-Only Memory (ROM), magnetic storage, flash memory, magnetic disk, or optical disk.

[0090] The aforementioned communication component is configured to facilitate wired or wireless communication between the device housing the communication component and other devices. The device housing the communication component can access wireless networks based on communication standards, such as mobile communication networks, or combinations thereof. In one exemplary embodiment, the communication component receives broadcast signals or broadcast-related information from an external broadcast management system via a broadcast channel.

[0091] The aforementioned display components may include a screen, which may include a liquid crystal display (LCD) and a touch panel (TP). If the screen includes a touch panel, the screen can be implemented as a touchscreen to receive input signals from the user. The touch panel includes one or more touch sensors to sense touches, swipes, and gestures on the touch panel. The touch sensors can sense not only the boundaries of touch or swipe actions but also the duration and pressure associated with the touch or swipe operation.

[0092] The aforementioned power supply components provide power to various components within the device in which they reside. These power supply components may include a power management system, one or more power sources, and other components associated with generating, managing, and distributing power to the device in which they reside.

[0093] The aforementioned audio component can be configured to output and / or input audio signals. For example, the audio component includes a microphone (MIC) configured to receive external audio signals when the device containing the audio component is in an operating mode, such as call mode, recording mode, or voice recognition mode. The received audio signals can be further stored in memory or transmitted via a communication component. In some embodiments, the audio component also includes a speaker for outputting audio signals.

[0094] Accordingly, embodiments of this application also provide a computer-readable storage medium storing a computer program, which, when executed by a processor, enables the processor to implement the steps in the above-described method embodiments. The computer-readable storage medium includes volatile or non-volatile components, or a combination thereof, and can be removable or non-removable. Examples of computer-readable storage media include, but are not limited to, phase-change random access memory (PRAM), static random access memory (SRAM), dynamic random access memory (DRAM), other types of random-access memory (RAM), read-only memory (ROM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), flash memory or other memory technologies, CD-ROM, digital video disc (DVD) or other optical storage, magnetic tape, magnetic disk storage or other magnetic storage devices, or any other non-transmission medium.

[0095] Accordingly, this application also provides a computer program product, which includes a computer program or instructions that, when executed by a processor, cause the processor to implement the steps in the above method embodiments. It should be understood that each step or combination of steps in the above method flow can be implemented by the computer program or instructions. Furthermore, these computer programs or instructions can be applied to the processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing device, enabling the processor of the general-purpose computer, special-purpose computer, embedded processor, or other programmable data processing device to function as an apparatus for implementing the corresponding functions in the above method embodiments.

[0096] Those skilled in the art will clearly understand that, for the sake of convenience and brevity, the specific working processes of the systems, devices, and units described above can be referred to the corresponding processes in the foregoing method embodiments, and will not be repeated here.

[0097] It should also be noted that the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus. Unless otherwise specified, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element.

[0098] Finally, it should be noted that the above are merely embodiments of this application and are not intended to limit the scope of this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of the claims of this application.

Claims

1. A control method, characterized in that, Applied to a controller connected to a battery unit and an interaction unit, the method includes: The controller is connected to a first low-voltage power supply output from the battery unit so that it enters a standby state based on the first low-voltage power supply, which is output when the battery unit receives a first power-on signal. Upon receiving a second power-on signal from the interaction unit, based on the first low-voltage power supply, the system outputs a second low-voltage power supply to the interaction unit and sends a third power-on signal to the battery unit, so that the battery unit outputs a high-voltage power supply to the power unit in response to the third power-on command. Receive the first power-off signal sent by the interactive unit; In response to the first power-down signal, the second low-voltage power supply output to the interaction unit is disconnected, and a second power-down signal is sent to the battery unit, causing the battery unit to disconnect the high-voltage power supply output to the power unit.

2. The method according to claim 1, characterized in that, The interaction unit includes multiple interaction sub-units; Upon receiving a second power-on signal from the interaction unit, the step of outputting a second low-voltage power supply to the interaction unit based on the first low-voltage power supply includes: Upon receiving a second power-on signal from the interaction unit, at least one target interaction subunit is identified; Based on the first low-voltage power supply, a second low-voltage power supply is output to each of the at least one target interaction subunit.

3. The method according to claim 2, characterized in that, The controller is connected to the interaction unit and the battery unit via a communication bus; Upon receiving a second power-on signal from the interaction unit, the step of outputting a second low-voltage power supply to the interaction unit based on the first low-voltage power supply includes: Upon receiving the second power-on signal sent by the interaction unit through the communication bus, the system outputs a second low-voltage power supply to the interaction unit based on the first low-voltage power supply. Sending the third power-on signal to the battery cell includes: A third power-on signal is sent to the battery cell based on the communication bus.

4. The method according to claim 3, characterized in that, After disconnecting the second low-voltage power supply output to the interaction unit in response to the first power-down signal, and sending a second power-down signal to the battery unit to cause the battery unit to disconnect the high-voltage power supply output to the power unit, the method further includes: The controller enters standby mode based on the first low-voltage power supply and performs preset tasks in standby mode.

5. The method according to claim 4, characterized in that, The preset tasks include at least one of system monitoring tasks, status recording tasks, and remote communication tasks.

6. The method according to claim 1, characterized in that, Upon receiving a second power-on signal from the interaction unit, the step of outputting a second low-voltage power supply to the interaction unit based on the first low-voltage power supply includes: In response to the second power-on signal, the low-voltage control switch is closed to output the first low-voltage power supply as the second low-voltage power supply to the interactive unit.

7. A control method, characterized in that, Applied to a battery cell connected to a controller and a power unit, the method includes: Upon receiving a first power-on signal, the controller outputs a first low-voltage power supply to the controller, so that upon receiving a second power-on signal sent by the interaction unit, the controller outputs a second low-voltage power supply to the interaction unit based on the first low-voltage power supply. Receive the third power-on signal sent by the controller; In response to the third power-on signal, a high-voltage power supply is output to the power unit; The controller receives a second power-down signal sent by the controller. The second power-down signal is output after the controller receives a first power-down signal sent by the interaction unit. The controller disconnects the second low-voltage power supply in response to the first power-down signal. In response to the second power-down signal, the high-voltage power supply is disconnected.

8. A control method, characterized in that, Applied to an interaction unit connected to a controller, the method includes: Send a second power-on signal to the controller; The controller outputs a second low-voltage power supply in response to the second power-on signal. The second low-voltage power supply is obtained based on the first low-voltage power supply output by the battery cell. The first low-voltage power supply is output when the battery cell receives the first power-on signal. In response to the second power-on signal, the controller also sends a third power-on signal to the battery cell, so that the battery cell outputs high-voltage power to the power unit in response to the third power-on command. A first power-down signal is sent to the controller, causing the controller to disconnect the second low-voltage power supply output to the interaction unit in response to the first power-down signal, and a second power-down signal is sent to the battery unit, causing the battery unit to disconnect the high-voltage power supply output to the power unit.

9. A control system, characterized in that, include: An interaction unit is used to send a second power-on signal and a first power-off signal to the controller, and to connect to the second low-voltage power supply output by the controller; The controller is used to connect to the first low-voltage power supply output by the battery unit, receive the second power-on signal sent by the interaction unit, output the second low-voltage power supply to the interaction unit based on the first low-voltage power supply, and send a third power-on signal to the battery unit. And receive a first power-down signal sent by the interaction unit, disconnect the second low-voltage power supply in response to the power-down signal, and send a second power-down signal to the battery unit; The battery unit is configured to receive a first power-on signal and, in response to the first power-on signal, output the first low-voltage power supply to the controller and, in response to the third power-on signal, output the high-voltage power supply to the power unit. It also receives a second power-down signal and disconnects the high-voltage power supply in response to the second power-down signal.

10. A water propulsion device, characterized in that, Includes the control system described in claim 9.

11. An electronic device, characterized in that, This includes processing components and storage components; The storage component stores a computer program; the computer program is invoked and executed by the processing component to implement the control method as described in any one of claims 1 to 6, or to implement the control method as described in claim 7, or to implement the control method as described in claim 8.

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