Voice-controlled power-off device and method for deep-sea sealed compartments

Abstract

This application belongs to the field of marine equipment power supply technology, and relates to a voice-controlled power-off device and method for a deep-sea sealed compartment. The power-off device includes: a voice module, which responds to voice information, recognizes control commands in the voice information, and controls its power output terminal to output a first-level signal based on the control commands; a power-off logic judgment circuit, whose signal input terminal is connected to the power output terminal of the voice module, for converting the first-level signal into a second-level signal opposite to it; a power-off control circuit, whose control input terminal is connected to the signal output terminal of the power-off logic judgment circuit, whose power input terminal is connected to the lithium battery in the deep-sea sealed compartment, and whose power output terminal is connected to the power input interface of the control module of the deep-sea sealed compartment, and controls the power-off of the control module based on the second-level signal; and a power supply circuit, which supplies power to the voice module and the power-off logic judgment circuit. This application can realize the power-on and power-off control of the lithium battery in the deep-sea sealed compartment.

Description

Technical Field

[0001] This application belongs to the field of marine equipment power supply technology, specifically, it relates to a voice-controlled power-off device and method for deep-sea sealed compartments. Background Technology

[0002] In deep-sea exploration, underwater robot, and other deep-sea equipment operations, the lithium battery packs carried on board need to be housed in a watertight compartment for extended periods to provide a stable power supply to the underwater equipment. To ensure the electrical safety of the lithium battery packs during installation, maintenance, diving, and retrieval, and to avoid risks such as short circuits, leakage, or component damage caused by accidental energization, it is typically necessary to implement power-on and power-off control of the positive electrode of the lithium battery inside the compartment from outside the watertight compartment. Simultaneously, the watertightness and structural reliability requirements of the high-pressure environment of the deep sea must be met.

[0003] In existing technologies, watertight short-circuit plug structures are commonly used to achieve power-off control in watertight environments. This solution achieves power-off control in the positive electrode circuit of the lithium battery by installing a pressure-bearing short-circuit plug on the watertight hull. Its control logic is similar to adding a switch to the live wire of a household appliance, physically disconnecting the positive electrode circuit to achieve power-off. However, such watertight short-circuit plugs must withstand the high-pressure loads of the deep sea, placing extremely high demands on the sealing structure, material strength, and insulation performance. This results in complex processing techniques and high manufacturing costs, significantly increasing the overall production and maintenance costs of deep-sea equipment, making it difficult to meet the requirements of large-scale application and low cost.

[0004] To reduce control costs, existing technologies have proposed using reed switch magnetic control for power-on and power-off control. This solution triggers the switch action through the magnetic coupling between an external magnet and an internal reed switch, offering convenient operation and low component costs, and has certain application advantages in conventional low-pressure, non-sealed environments. However, the watertight hulls of deep-sea equipment are typically made of metals such as titanium alloy or 316 stainless steel. These high-rigidity, high-sealing metal materials have a significant shielding effect on magnetic fields. Furthermore, the control circuit board of the lithium battery pack is entirely sealed inside the hull, preventing the external magnet from effectively penetrating the hull wall to drive the reed switch. Consequently, this magnetic switch solution is unsuitable for deep-sea high-pressure watertight hull scenarios, exhibiting significant environmental applicability limitations.

[0005] In summary, existing deep-sea lithium battery positive electrode power-off control technologies cannot simultaneously meet the practical application requirements of low cost, deep-sea watertight compatibility, safe and reliable power-on and power-off. Therefore, there is an urgent need for a lithium battery power-on and power-off control solution that is simple in structure, low in cost, and compatible with titanium alloy and stainless steel deep-sea watertight chambers. Summary of the Invention

[0006] To address the aforementioned shortcomings of existing technologies, this application provides a low-cost, highly reliable voice-controlled power-off device for deep-sea sealed compartments, capable of controlling the power-on and power-off of lithium batteries in deep-sea sealed compartments.

[0007] To achieve the above objectives, the first aspect of this application provides a voice-controlled power-off device for deep-sea sealed compartments, comprising: The voice module includes: a voice recognition submodule configured to: listen to voice information and, in response to voice information, recognize control commands in the voice information; and a control submodule configured to:, in response to control commands, control the power output terminal of the voice module to output a first-level signal. The upper power failure logic judgment circuit has its signal input terminal connected to the power output terminal of the voice module. The upper power failure logic judgment circuit converts the first level signal into a second level signal opposite to the first level signal through NOT gates and OR gates. The power-off control circuit has its control input terminal connected to the signal output terminal of the power-off logic judgment circuit, its power input terminal connected to the lithium battery in the deep-sea sealed chamber, and its power output terminal connected to the power input interface of the control module of the deep-sea sealed chamber. The power-off control circuit controls the power-off of the control module based on the second level signal. The power supply circuit has its power input terminal connected to the lithium battery and its power output terminal connected to the power input terminal of the voice module and the power input terminal of the upper power failure logic judgment circuit. The power supply circuit converts the voltage input from the lithium battery to the power supply circuit into a 3.3V voltage to power the voice module and the upper power failure logic judgment circuit.

[0008] In some embodiments, the voice recognition submodule is further configured to: in response to voice information, identify whether the controlling entity in the voice information is the target entity; if so, wake up the voice module; if not, control the voice module to enter a sleep state and continue to listen to voice information.

[0009] In some embodiments, the method by which the control submodule controls the power output terminal of the voice module to output a first-level signal based on control commands includes: In response to a control command, determine whether the control command is a power-on command; If yes, the first output signal is a low-level signal; otherwise, the first output signal is a high-level signal.

[0010] In some embodiments, the power supply circuit includes: The power input terminal of the power supply circuit is connected to the lithium battery; The power output terminal of the power supply circuit is connected to the power input terminal of the voice module and the power input terminal of the power-off logic judgment circuit. The first step-down power supply module has its power input terminal connected to the power input terminal of the power supply circuit and grounded through a first parallel circuit formed by capacitors C1 and C2 connected in parallel; its power output terminal is connected to the power output terminal of the power supply circuit and grounded through a second parallel circuit; the first step-down power supply module converts the voltage input from the lithium battery to the power supply circuit into a 3.3V voltage to power the voice module and the power-off logic judgment circuit.

[0011] In some embodiments, the second parallel circuit is composed of a first series branch and a first parallel branch connected in parallel; the first series branch is composed of resistors R1 and R2 connected in series, resistor R2 is grounded, and the connection point between resistors R1 and R2 is connected to the voltage regulation terminal of the first step-down power supply module; the first parallel branch is composed of capacitors C3 and C4 connected in parallel.

[0012] In some embodiments, the power-off logic determination circuit includes: The signal input terminal is connected to the power output terminal of the voice module; The signal output terminal is connected to the control input terminal of the upper power-off control circuit. The NOT gate's input terminal is grounded via capacitor C5, and connected to the power output terminal of the power supply circuit via resistor R3 and to the signal input terminal via resistor R4. The first OR gate has its first input terminal connected to the output terminal of the NOT gate, and its second input terminal grounded through resistor R5; the power input terminal of the first OR gate is connected to the power output terminal of the power supply circuit and grounded through capacitor C6; the ground terminal of the first OR gate is grounded. The second OR gate has its first input terminal connected to the power output terminal of the power supply circuit via capacitor C7 and grounded via resistor R6; its second input terminal is grounded via resistor R7. The third OR gate has its first input terminal connected to the output terminal of the second OR gate, and its second input terminal connected to the output terminal of the first OR gate. The fourth OR gate has its first input connected to the output of the third OR gate, its second input grounded, and its output connected to the signal output.

[0013] In some embodiments, the power-off control circuit includes: The control input terminal is connected to the signal output terminal of the power-off logic judgment circuit. The power input terminal of the upper power-off control circuit is connected to the lithium battery; The transistor has its base connected to the control input terminal via resistor R8 and grounded via resistor R9; its collector is connected to the power input terminal of the upper power-off control circuit via a series-parallel circuit, and its emitter is grounded; the series-parallel circuit is composed of a third parallel circuit consisting of resistor R10 and capacitor C8 connected in parallel and resistor R11 connected in series. The MOS transistor has its gate connected to the connection point between the third parallel circuit and the resistor R11, and its drain connected to the power input terminal of the upper power-off control circuit. The boost power supply module has its power input terminal connected to the source of the MOSFET and grounded via a fourth parallel circuit consisting of capacitors C9 and C10 connected in parallel; its power output terminal is grounded via a fifth parallel circuit. The second buck power supply module has its power input terminal connected to the power output terminal of the boost power supply module, and grounded via a sixth parallel circuit consisting of capacitors C11 and C12 connected in parallel; its enable terminal is connected to its power input terminal, and its ground terminal is grounded; its power output terminal is connected to the power input terminal of the control module, and grounded via a seventh parallel circuit consisting of capacitors C13 and C14 connected in parallel; the second buck power supply module converts the voltage input from the boost power supply module to the second buck power supply module into a 3.3V voltage to power the control module.

[0014] In some embodiments, the fifth parallel circuit is composed of a second series branch and a second parallel branch connected in parallel; the second series branch is composed of resistors R12 and R13 connected in series, resistor R13 is grounded, and the connection point between resistors R12 and R13 is connected to the voltage regulation terminal of the boost power supply module; the second parallel branch is composed of capacitors C15 and C16 connected in parallel.

[0015] In a second aspect of this application, a voice-controlled power-off method for a deep-sea sealed compartment is provided, employing the voice-controlled power-on device for a deep-sea sealed compartment described in the first aspect of this application. The method includes: In response to voice information, the voice recognition submodule recognizes control commands in the voice information; In response to the control command, the control submodule controls the power output terminal of the voice module to output a first-level signal; In response to the first electrical signal, the power-off logic judgment circuit converts the first level signal into a second level signal that is opposite to the first level signal. In response to the second level signal, the power-off control circuit controls the control module to power off.

[0016] In some embodiments, the method further includes: In response to voice information, the voice recognition submodule identifies whether the controlling entity in the voice information is the target entity; If yes, wake up the voice module; if no, control the voice module to enter sleep mode and continue listening to voice information.

[0017] Compared with the prior art, the advantages and positive effects of this application are as follows: (1) The voice-controlled deep-sea watertight compartment power-off device provided in this application realizes remote voice power-on and power-off control of the control module of the deep-sea watertight compartment through the coordinated cooperation of the voice module, the power-off logic judgment circuit, the power-off control circuit and the power supply circuit. It does not require manual operation, does not require complex processors and software systems, has a simple overall structure, low hardware cost, and is easy to mass-produce and deploy in engineering.

[0018] (2) The voice-controlled deep-sea water tank power-off device provided in this application can effectively avoid false triggering and illegal voice interference by setting a voice recognition sub-module to perform target verification on the control subject and only wake up the target subject, thereby improving the safety and reliability of the control system in the deep-sea environment.

[0019] (3) The voice-controlled deep-sea sealed compartment power-off device provided in this application is composed of basic logic devices such as NOT gates and OR gates to realize reliable reversal of level signals and logic processing. The circuit has good anti-interference performance, long working life, and is suitable for the high humidity, high pressure and complex electromagnetic environment of the deep sea.

[0020] (4) The voice-controlled deep-sea sealed compartment power-off device provided in this application adopts a hierarchical driving mechanism composed of transistors and MOSFETs in the power-off control circuit. The transistors are used as the front drive and the MOSFETs are used as power switches to realize the control of large current switching by small signals. The switching speed is fast, the loss is low, the reliability is high, and it is suitable for long-term stable operation of deep-sea equipment. Attached Figure Description

[0021] Figure 1 This is a structural block diagram of the voice-controlled power-off device for deep-sea sealed compartments as described in the embodiments of this application; Figure 2 This is a control principle diagram of the voice-controlled power-off device for a deep-sea sealed compartment as described in the embodiments of this application; Figure 3 This is a schematic flowchart illustrating a method for the control submodule to control the power output terminal of the voice module to output a first-level signal based on control commands, as described in an embodiment of this application. Figure 4 This is a circuit diagram of the power supply circuit described in the embodiments of this application; Figure 5 This is a circuit diagram of the power-off logic judgment circuit described in the embodiment of this application; Figure 6This is a circuit diagram of the power-off control circuit described in the embodiments of this application; Figure 7 This is a flowchart illustrating the voice-controlled power-off method for a deep-sea sealed compartment as described in the second aspect of this application. Figure 8 This is a flowchart illustrating the voice-controlled power-off method for a deep-sea sealed compartment as described in the third aspect of this application. Figure 9 This is a flowchart illustrating the voice-controlled power-off method for a deep-sea sealed compartment as described in Example 1 of this application. Figure 10 This is a flowchart illustrating the voice-controlled power-off method for a deep-sea sealed compartment as described in Example 2 of this application.

[0022] In the figure, 100 is a voice-controlled power-off device for a deep-sea sealed compartment, 101 is a voice module, 1011 is a voice recognition submodule, 1012 is a control submodule, 102 is a power-off logic judgment circuit, 103 is a power-off control circuit, 104 is a power supply circuit, 201 is a lithium battery, and 202 is a control module. Detailed Implementation

[0023] The present application will now be described in detail through exemplary embodiments. However, it should be understood that, without further description, elements, structures, and features in one embodiment may be advantageously incorporated into other embodiments.

[0024] In the description of this application, it should be understood that the terms "center", "lateral", "longitudinal", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0025] The terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first," "second," or "third" may explicitly or implicitly include one or more of that feature.

[0026] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0027] To address the problems of high cost and low reliability in existing deep-sea sealed compartment power-off methods, this application provides a voice-controlled deep-sea sealed compartment power-off device. This device reduces costs and improves reliability by implementing power-off functionality based on voice control. The following detailed description, in conjunction with the accompanying drawings, provides a voice-controlled deep-sea sealed compartment power-off device and method.

[0028] The first aspect of this application provides a voice-controlled power-off device for deep-sea sealed compartments, which is applied to underwater navigation equipment. Figure 1 The diagram shows the structural block diagram of the voice-controlled power-off device for a deep-sea sealed compartment.

[0029] See Figure 1 , Figure 2 The voice-controlled deep-sea sealed compartment power-off device 100 includes a voice module 101, a power-off logic judgment circuit 102, a power-off control circuit 103, and a power supply circuit 104. The voice module 101 responds to voice information, recognizes control commands within the voice information, and controls the power output terminal of the voice module to output a first-level signal based on the control commands. The signal input terminal of the power-off logic judgment circuit 102 is connected to the power output terminal of the voice module 101. Responding to the first-level signal, the power-off logic judgment circuit 102 converts the first-level signal into a second-level signal opposite to the first-level signal through NOT and OR gates. The control input terminal of the power-off control circuit 103 is connected to the signal output terminal of the power-off logic judgment circuit 102. The power input terminal of the power-off control circuit 103 is connected to the lithium battery 201 in the deep-sea sealed chamber. The power output terminal of the power-off control circuit 103 is connected to the power input interface of the control module 202 of the deep-sea sealed chamber. The power-off control circuit 103 responds to the second level signal and controls the power-off of the control module 202 based on the second level signal. The power supply circuit 104 converts the voltage input to the power supply circuit 104 into a 3.3V voltage to power the voice module 101 and the power-off logic judgment circuit 102.

[0030] Specifically, the voice module 101 includes a voice recognition submodule 1011 and a control submodule 1012.

[0031] The speech recognition submodule 1011 is configured to: listen to speech information, respond to speech information, and recognize control commands in the speech information.

[0032] For example, the voice message is: Power on the control module 202 of the deep-sea water-tight compartment. The voice recognition submodule 1011 recognizes the control command in the voice message as a power-on command.

[0033] The speech recognition submodule 1011 is also configured to: in response to speech information, identify whether the control subject in the speech information is the target subject; if yes, wake up the speech module 101; if no, control the speech module 101 to enter a sleep state and continue to listen to speech information.

[0034] By verifying the identity of the control subject in the voice information (such as the control module 202 of the deep-sea water-tight compartment), the voice module 101 is only awakened for the target subject, while non-target subjects remain dormant and continuously monitored, effectively reducing the probability of false wake-up, reducing unnecessary power consumption, and improving the security and anti-interference capability of voice control.

[0035] For example, the voice information is: Power on the small buoy system. The voice recognition submodule recognizes the control subject in the voice information as "small buoy system" and the target subject as "deep seawater sealed compartment control module 202". At this time, the voice recognition submodule 1011 controls the voice module 101 to enter the sleep state and continue to listen to the voice information.

[0036] For example, the voice information is: Power on the control module 202 of the deep-sea watertight compartment. The voice recognition submodule recognizes the control subject in the voice information as "control module 202 of the deep-sea watertight compartment". If it is consistent with the target subject "control module 202 of the deep-sea watertight compartment", then the voice module 101 is awakened.

[0037] The control submodule 1012 is configured to control the power output terminal of the voice module 101 to output a first level signal in response to a control command.

[0038] For example, if the control command is a power-on command, the control submodule 1012 controls the power output of the voice module 101 to disconnect and output a low-level signal. If the control command is a power-off command, the control submodule 1012 controls the power output of the voice module 101 to disconnect and output a high-level signal.

[0039] Specifically, see Figure 3 The method by which the control submodule 1012 controls the power output terminal of the voice module 101 to output a first-level signal based on control commands includes: S1. In response to a control command, determine whether the control command is a power-on command; S2. If yes, the first level signal output is a low level signal; if no, the first level signal output is a high level signal.

[0040] The control submodule 1012 responds to control commands, determines whether the command is a power-on command, and outputs a low-level or high-level signal accordingly to control the power output level of the voice module 101. This method features clear level logic, direct response, and rapid switching, enabling stable power-on and power-off control of the subsequent deep-sea watertight compartment control module 202. The circuit structure is simple, highly reliable, and has strong anti-interference capabilities, accurately managing the power supply of the deep-sea watertight compartment control module 202, reducing unnecessary power consumption, and ensuring the real-time performance and stability of control command execution.

[0041] Specifically, see Figure 4 The power supply circuit includes: The power input terminal VCC_IN of the power supply circuit is connected to the lithium battery; The power output terminal VCC_OUT of the power supply circuit is connected to the power input terminal of the voice module and the power input terminal of the upper power-off logic judgment circuit. The first step-down power supply module U1 has its power input terminal connected to the power input terminal VCC_IN of the power supply circuit and grounded through a first parallel circuit formed by capacitors C1 and C2 connected in parallel; its power output terminal is connected to the power output terminal VCC_OUT of the power supply circuit and grounded through a second parallel circuit.

[0042] Specifically, the second parallel circuit is composed of a first series branch and a first parallel branch connected in parallel. The first series branch is composed of resistors R1 and R2 connected in series, with resistor R2 grounded. The connection point between resistors R1 and R2 is connected to the voltage regulation terminal of the first step-down power supply module U1. The first parallel branch is composed of capacitors C3 and C4 connected in parallel.

[0043] Using the above power supply circuit structure, a lithium battery is used as the input power source. The voltage input from the lithium battery to the power supply circuit is regulated and converted by the first step-down power module U1. Its input terminal features a first parallel circuit consisting of capacitors C1 and C2 connected in parallel, which effectively filters out high-frequency noise and voltage fluctuations in the input power supply, improving the stability of the power input. Its output terminal uses a second parallel circuit consisting of a first series branch formed by resistors R1 and R2 connected in series and a first parallel branch formed by capacitors C3 and C4 connected in parallel. On the one hand, through a resistor voltage divider network and in conjunction with the voltage regulation terminal, precise adjustment and stable output voltage are achieved; on the other hand, the parallel capacitors further suppress output ripple and absorb surge interference, ensuring the purity of the output power supply.

[0044] In some embodiments, seeFigure 5 The power-off logic judgment circuit includes: The signal input terminal VCC_A is connected to the power output terminal of the voice module; The signal output terminal VCC_B is connected to the control input terminal VCC_C of the upper power-off control circuit. The NOT gate's input terminal is grounded via capacitor C5, and connected to the power output terminal VCC_OUT of the power supply circuit via resistor R3 and to the signal input terminal VCC_A via resistor R4. The first OR gate D1D has its first input terminal connected to the output terminal of the NOT gate, and its second input terminal grounded through resistor R5; the power input terminal of the first OR gate D1D is connected to the power output terminal VCC_OUT of the power supply circuit and grounded through capacitor C6; the ground terminal of the first OR gate D1D is grounded. The second OR gate D1A has its first input terminal connected to the power output terminal VCC_OUT of the power supply circuit via capacitor C7 and grounded via resistor R6; its second input terminal is grounded via resistor R7. The third OR gate D1B has its first input terminal connected to the output terminal of the second OR gate D1A, and its second input terminal connected to the output terminal of the first OR gate D1D. The fourth OR gate D1C has its first input connected to the output of the third OR gate D1B, its second input grounded, and its output connected to the signal output VCC_B.

[0045] The signal input terminal VCC_A is connected to the power output terminal of the voice module to acquire the first level signal output by the voice module; the signal output terminal VCC_B is used to output a second level signal opposite to the first level signal to the power-off control circuit to drive the power-off control circuit to work.

[0046] The NOT gate input terminal achieves AC coupling and noise filtering through capacitor C5, and is connected to the power output terminal VCC_OUT of the power supply circuit through resistor R3 and the signal input terminal VCC_A through resistor R4, forming level bias and signal sampling, and performing inversion shaping and interference suppression on the first level signal output from the power output terminal of the voice module.

[0047] The first OR gate D1D performs logic processing on the shaped signal output by the NOT gate. Its second input terminal is grounded through resistor R5 to achieve a stable default level. The power input terminal of the first OR gate D1D is powered by the power supply circuit, and power supply noise is filtered out through capacitor C6 to ensure stable and reliable logic operation.

[0048] The first input terminal of the second OR gate D1A forms an RC filter network through capacitor C7 and resistor R6 to sample and detect the power-on timing and level changes of the power output terminal VCC_OUT of the power supply circuit. The second input terminal is grounded through resistor R7 to set the default level, which is used to identify the power-off process of the control module.

[0049] The third OR gate D1B performs a logical AND synthesis judgment on the output signals of the first OR gate D1D and the second OR gate D1A, and performs logical operations on the first level signal output by the voice module and the power-on signal of the control module.

[0050] The fourth OR gate D1C further shapes and drives the output signal of the third OR gate D1B. Its second input terminal is grounded to fix the logic potential. Finally, it outputs a stable and reliable power-on judgment signal (i.e., the second level signal) to the power-off control circuit through the signal output terminal VCC_B, thereby realizing accurate detection and logic output of the power-on and power-off state of the control module.

[0051] The aforementioned power-off logic judgment circuit, through the cooperation of NOT gates, multiple OR gates, and corresponding RC networks, can acquire, filter, shape, and logically synthesize the first-level signal output from the power supply terminal of the voice module and the power-on timing signal of the power supply circuit. This effectively filters out glitches, jitter, and interference signals during the power-on process, avoiding misjudgments caused by power fluctuations or signal instability. By performing logic processing through multiple OR gates at each stage, the signal's anti-interference capability and output stability are improved, ensuring the accuracy and reliability of the second-level signal output to the power-off control circuit. This enables precise identification of the power-off state of the control module, guaranteeing the stable and reliable operation of the overall control logic.

[0052] In some embodiments, see Figure 6 The power-off control circuit includes a control input terminal, a power input terminal VCC_IN1 for the power-off control circuit, a transistor V1, a MOSFET V2, a boost power supply module U2, and a second buck power supply module U3.

[0053] The control input terminal is connected to the signal output terminal VCC_B of the upper power-off logic judgment circuit. The power input terminal VCC_IN1 of the upper power-off control circuit is connected to the lithium battery.

[0054] The base of transistor V1 is connected to the control input terminal via resistor R8 and grounded via resistor R9. The collector of transistor V1 is connected to the power input terminal VCC_IN1 of the upper power-off control circuit via a series-parallel circuit, and the emitter of transistor V1 is grounded. The series-parallel circuit is composed of a third parallel circuit consisting of resistor R10 and capacitor C8 connected in parallel, and resistor R11 connected in series.

[0055] The gate of MOSFET V2 is connected to the connection point between the third parallel circuit and resistor R11, and the drain of MOSFET V2 is connected to the power input terminal VCC_IN1 of the upper power-off control circuit.

[0056] The power input terminal of the boost power module U2 is connected to the source of the MOSFET V2 and grounded via a fourth parallel circuit consisting of capacitors C9 and C10 connected in parallel. The power output terminal of the boost power module U2 is grounded via a fifth parallel circuit. The fifth parallel circuit consists of a second series branch and a second parallel branch connected in parallel. The second series branch consists of resistors R12 and R13 connected in series, with resistor R13 grounded. The connection point between resistors R12 and R13 is connected to the voltage regulation terminal of the boost power module U2. The second parallel branch consists of capacitors C15 and C16 connected in parallel.

[0057] The power input terminal of the second buck power supply module U3 is connected to the power output terminal of the boost power supply module U2, and is grounded via a sixth parallel circuit consisting of capacitors C11 and C12 connected in parallel. The enable terminal of the second buck power supply module U3 is connected to its power input terminal, and its ground terminal is grounded. The power output terminal of the second buck power supply module U3 is connected to the power input terminal of the control module, and is grounded via a seventh parallel circuit consisting of capacitors C13 and C14 connected in parallel. The second buck power supply module U3 converts the voltage input from the boost power supply module U2 to itself into a 3.3V voltage to power the control module.

[0058] The control input terminal is used to receive the second-level signal output by the power-off logic judgment circuit. The power input terminal of the power-off control circuit is connected to the lithium battery, which provides input power to the entire control circuit.

[0059] Transistor V1 forms the switch control branch. Its base is connected to the control input terminal via resistor R8 and grounded via resistor R9 to form a voltage divider bias, used for current limiting and level matching of the control signal, realizing switch on and off control. The collector of transistor V1 is connected to the power input terminal VCC_IN1 of the upper power-off control circuit via a series-parallel circuit, and the emitter of transistor V1 is grounded. The series-parallel circuit is composed of a third parallel circuit formed by resistor R10 and capacitor C8, and then connected in series with resistor R11, used to realize level conversion, delay and filtering, and suppress power supply glitches and interference.

[0060] MOSFET V2 serves as the main power switch. Its gate is connected to the node between the third parallel circuit and resistor R11, its drain is connected to the power input terminal VCC_IN1 of the upper power-off control circuit, and its source is connected to the boost power module U2. Under the switching control of transistor V1, the overall on / off of lithium battery power supply is realized, thus completing the upper power-off control of the system.

[0061] The power input terminal of the boost power supply module U2 is connected to the source of MOSFET V2, and grounded through a fifth parallel circuit formed by a second parallel branch consisting of capacitors C15 and C16 connected in parallel, and a second series branch consisting of resistors R12 and R13 connected in series, thus achieving input filtering and stabilization. The node between resistors R12 and R13 is connected to the voltage regulation terminal of the boost power supply module U2, and the output voltage is precisely regulated by setting the voltage divider. Simultaneously, the input terminal of the boost power supply module U2 is grounded through a fourth parallel circuit formed by capacitors C9 and C10 connected in parallel, further filtering out power ripple and noise.

[0062] The power input terminal of the second buck power supply module U3 is connected to the boost power supply module U2, and is grounded through a sixth parallel circuit consisting of capacitors C11 and C12 connected in parallel, thus achieving input filtering. Its enable terminal is directly connected to the power input terminal, enabling automatic power-on without the need for additional control signals. The second buck power supply module U3 converts the voltage output from the boost power supply module U2 into a stable 3.3V voltage to power the control module. The power output terminal of the second buck power supply module U3 is grounded through a seventh parallel circuit consisting of capacitors C13 and C14 connected in parallel, used to suppress output ripple and ensure a clean and stable power supply to meet the operating power requirements of the control module.

[0063] The power-on / off control circuit enables power-on / off control of the control module in the deep-sea watertight compartment, providing a stable and reliable power supply. Specifically, the circuit employs a two-stage switching control structure using transistors and MOSFETs, coupled with a corresponding RC network, to precisely control the on / off state of the lithium battery power supply path. This effectively avoids false on / off caused by power-on jitter and power interference, improving the stability and reliability of power-on control. A boost power supply module combined with a voltage divider circuit allows for flexible output voltage configuration to meet the power supply requirements of subsequent circuits. A second buck power supply module converts the voltage to a stable 3.3V for the control module, and multiple parallel capacitors filter the input and output, significantly suppressing power ripple and noise interference, ensuring a clean and stable operating voltage for the control module, and improving the overall reliability of the deep-sea watertight compartment.

[0064] When the voice-controlled deep-sea watertight compartment power-off device described in this application is used, it can be integrated into the watertight compartment of underwater navigation equipment (such as AUV, underwater submersible, etc.) and can dive and surface together with the underwater navigation equipment.

[0065] A second aspect of this application provides a voice-controlled power-off method for a deep-sea sealed compartment, employing the voice-controlled power-on device for a deep-sea sealed compartment described in the first aspect of this application.

[0066] See Figure 7 The voice-controlled power-off method for deep-sea sealed compartments includes: S1. In response to voice information, the voice recognition submodule recognizes the control commands in the voice information; S2. In response to the control command, the control submodule controls the power output terminal of the voice module to output a first level signal; S3. In response to the first electrical signal, the power-off logic judgment circuit converts the first level signal into a second level signal that is opposite to the first level signal. S4. In response to the second level signal, the power-off control circuit controls the control module to power off.

[0067] In this embodiment, in response to voice information, the control commands within the voice information are recognized. Based on the recognized control commands (power-on command / power-off command), the power output terminal of the voice module is controlled to output a first-level signal (low-level signal / high-level signal), triggering the power-on / power-off action in a purely voice-based manner. This simplifies the operation process and improves the controllability of the equipment in deep-sea environments. Subsequently, the power-on / power-off logic judgment circuit converts the first-level signal into a second-level signal (high-level signal / low-level signal) opposite to the first-level signal through NOT gates and OR gates. This achieves logical isolation, level shaping, and anti-interference processing of the control signal, ensuring reliable operation of the subsequent power-on / power-off circuit and avoiding false triggering. The power-on / power-off control circuit is powered by a lithium battery. Based on the second-level signal output by the power-on / power-off logic judgment circuit, it achieves reliable power-on and power-off control of the control module in the deep-sea sealed chamber, meeting the usage requirements of independent power supply and stable start-up and shutdown in deep-sea sealed environments.

[0068] A third aspect of this application provides a voice-controlled power-off method for a deep-sea sealed compartment, employing the voice-controlled power-on device for a deep-sea sealed compartment described in the first aspect of this application.

[0069] See Figure 8 The voice-controlled power-off method for deep-sea sealed compartments includes: S1. In response to voice information, the voice recognition submodule identifies whether the control subject in the voice information is the target subject; S2. If yes, wake up the voice module; if no, control the voice module to enter sleep mode and continue to listen to voice information. S3. In response to voice information, the voice recognition submodule recognizes control commands in the voice information; S4. In response to the control command, the control submodule controls the power output terminal of the voice module to output a first level signal; S5. In response to the first electrical signal, the power-off logic judgment circuit converts the first level signal into a second level signal that is opposite to the first level signal. S6. In response to the second level signal, the power-off control circuit controls the control module to power off.

[0070] In this embodiment, the voice module is first awakened by the target subject (e.g., the control module of the watertight compartment) in the voice information, while remaining dormant and continuously monitored for non-target subjects. This effectively reduces the probability of false wake-ups, minimizes unnecessary power consumption, and improves the security and anti-interference capability of voice control. Then, based on the recognized control command (power-on command / power-off command), the power output terminal of the voice module outputs a first-level signal (low-level signal / high-level signal) to trigger the power-on / power-off action in a purely voice-based manner, simplifying the operation process and improving the equipment's operability in deep-sea environments. Subsequently, the power-on / power-off logic judgment circuit converts the first-level signal into a second-level signal (high-level signal / low-level signal) through NOT and OR gate logic, achieving logical isolation, level shaping, and anti-interference processing of the control signal, ensuring reliable operation of the subsequent power-on / power-off circuit and avoiding false triggering. The power-on / power-off control circuit is powered by a lithium battery. Based on the second-level signal output by the power-on / power-off logic judgment circuit, it reliably powers on and off the control module of the deep-sea watertight compartment, meeting the requirements for independent power supply and stable start-up and shutdown in a deep-sea enclosed environment.

[0071] Example 1: A voice-controlled power-off method for deep-sea sealed compartments, comprising: S1. In response to the voice message "Power on the control module of the watertight compartment", the voice recognition submodule recognizes the control command in the voice message as a power-on command.

[0072] S2. In response to the power-on command, the control submodule controls the power output terminal of the voice module to output a low-level signal. S3. In response to the low-level signal, the power-off logic judgment circuit converts the low-level signal into a high-level signal; S4. In response to the high-level signal, the power-off control circuit controls the control module to power on.

[0073] Example 2: A voice-controlled power-off method for deep-sea sealed compartments, comprising: S1. In response to the voice message "Power on the small float system", the voice recognition submodule recognizes that the control subject (small float system) in the voice message is not the target subject (diving bobber 1). S2. Control the voice module to enter sleep mode, while continuing to listen to voice information; S3. In response to the voice message "Power on Mooring No. 1", the voice recognition submodule identifies the control subject (Mooring No. 1) in the voice message as the target subject (Mooring No. 1). S4. In response to voice information, the voice recognition submodule recognizes the control command in the voice information as a power-on command. S5. In response to the power-on command, the control submodule controls the power output terminal of the voice module to output a low-level signal. S6. In response to the low-level signal, the power-off logic judgment circuit converts the low-level signal into a high-level signal that is opposite to the low-level signal. S7. In response to the high-level signal, the power-off control circuit controls the control module to power on.

[0074] The above embodiments are used to explain this application, not to limit it. Any modifications and changes made to this application within the spirit and scope of the claims shall fall within the protection scope of this application.

Claims

1. A voice-controlled power-off device for deep-sea sealed compartments, applied to underwater navigation equipment, characterized in that, include: A voice module includes: a voice recognition submodule configured to: monitor voice information and, in response to voice information, recognize control commands in the voice information; and a control submodule configured to:, in response to control commands, control the power output terminal of the voice module to output a first-level signal. The voice recognition submodule is further configured to:, in response to voice information, identify whether the control subject in the voice information is a target subject; if so, wake up the voice module; if not, control the voice module to enter a sleep state and continue monitoring voice information. The method by which the control submodule controls the power output terminal of the voice module to output a first-level signal based on control commands includes: in response to control commands, determining whether the control command is a power-on command; if so, outputting a low-level signal; if not, outputting a high-level signal. The upper power failure logic judgment circuit has its signal input terminal connected to the power output terminal of the voice module. The upper power failure logic judgment circuit converts the first level signal into a second level signal opposite to the first level signal through NOT gates and OR gates. The power-off control circuit has its control input terminal connected to the signal output terminal of the power-off logic judgment circuit, its power input terminal connected to the lithium battery in the deep-sea sealed chamber, and its power output terminal connected to the power input interface of the control module of the deep-sea sealed chamber. The power-off control circuit controls the power-off of the control module based on the second level signal. The power supply circuit has its power input terminal connected to the lithium battery and its power output terminal connected to the power input terminal of the voice module and the power input terminal of the upper power failure logic judgment circuit; the power supply circuit converts the voltage input from the lithium battery to the power supply circuit into a 3.3V voltage to power the voice module and the upper power failure logic judgment circuit. The power-off logic judgment circuit includes: The signal input terminal is connected to the power output terminal of the voice module; The signal output terminal is connected to the control input terminal of the upper power-off control circuit. The NOT gate's input terminal is grounded via capacitor C5, and connected to the power output terminal of the power supply circuit via resistor R3 and to the signal input terminal via resistor R4. The first OR gate has its first input terminal connected to the output terminal of the NOT gate, and its second input terminal grounded through resistor R5; the power input terminal of the first OR gate is connected to the power output terminal of the power supply circuit and grounded through capacitor C6; the ground terminal of the first OR gate is grounded. The second OR gate has its first input terminal connected to the power output terminal of the power supply circuit via capacitor C7 and grounded via resistor R6; its second input terminal is grounded via resistor R7. The third OR gate has its first input terminal connected to the output terminal of the second OR gate, and its second input terminal connected to the output terminal of the first OR gate. The fourth OR gate has its first input connected to the output of the third OR gate, its second input grounded, and its output connected to the signal output.

2. The voice-controlled power-off device for deep-sea sealed compartments as described in claim 1, characterized in that, The power supply circuit includes: The power input terminal of the power supply circuit is connected to the lithium battery; The power output terminal of the power supply circuit is connected to the power input terminal of the voice module and the power input terminal of the power-off logic judgment circuit. The first step-down power supply module has its power input terminal connected to the power input terminal of the power supply circuit and grounded through a first parallel circuit formed by capacitors C1 and C2 connected in parallel; its power output terminal is connected to the power output terminal of the power supply circuit and grounded through a second parallel circuit; the first step-down power supply module converts the voltage input from the lithium battery to the power supply circuit into a 3.3V voltage to power the voice module and the power-off logic judgment circuit.

3. The voice-controlled power-off device for deep-sea sealed compartments as described in claim 2, characterized in that, The second parallel circuit is composed of a first series branch and a first parallel branch connected in parallel; the first series branch is composed of resistors R1 and R2 connected in series, resistor R2 is grounded, and the connection point between resistors R1 and R2 is connected to the voltage regulation terminal of the first step-down power supply module; the first parallel branch is composed of capacitors C3 and C4 connected in parallel.

4. The voice-controlled power-off device for deep-sea sealed compartments as described in claim 1, characterized in that, The power-off control circuit includes: The control input terminal is connected to the signal output terminal of the power-off logic judgment circuit. The power input terminal of the upper power-off control circuit is connected to the lithium battery; The transistor has its base connected to the control input terminal via resistor R8 and grounded via resistor R9; its collector is connected to the power input terminal of the upper power-off control circuit via a series-parallel circuit, and its emitter is grounded; the series-parallel circuit is composed of a third parallel circuit consisting of resistor R10 and capacitor C8 connected in parallel and resistor R11 connected in series. The MOS transistor has its gate connected to the connection point between the third parallel circuit and the resistor R11, and its drain connected to the power input terminal of the upper power-off control circuit. The boost power supply module has its power input terminal connected to the source of the MOSFET and grounded via a fourth parallel circuit consisting of capacitors C9 and C10 connected in parallel; its power output terminal is grounded via a fifth parallel circuit. The second buck power supply module has its power input terminal connected to the power output terminal of the boost power supply module, and grounded via a sixth parallel circuit consisting of capacitors C11 and C12 connected in parallel; its enable terminal is connected to its power input terminal, and its ground terminal is grounded; its power output terminal is connected to the power input terminal of the control module, and grounded via a seventh parallel circuit consisting of capacitors C13 and C14 connected in parallel; the second buck power supply module converts the voltage input from the boost power supply module to the second buck power supply module into a 3.3V voltage to power the control module.

5. The voice-controlled power-off device for deep-sea sealed compartments as described in claim 4, characterized in that, The fifth parallel circuit is composed of a second series branch and a second parallel branch connected in parallel; the second series branch is composed of resistors R12 and R13 connected in series, resistor R13 is grounded, and the connection point between resistors R12 and R13 is connected to the voltage regulation terminal of the boost power supply module; the second parallel branch is composed of capacitors C15 and C16 connected in parallel.

6. A voice-controlled power-off method for a deep-sea sealed compartment, employing the voice-controlled power-on device for a deep-sea sealed compartment as described in any one of claims 1 to 5, characterized in that, The method includes: In response to voice information, the voice recognition submodule recognizes control commands in the voice information; In response to the control command, the control submodule controls the power output terminal of the voice module to output a first-level signal; In response to the first electrical signal, the power-off logic judgment circuit converts the first level signal into a second level signal that is opposite to the first level signal. In response to the second level signal, the power-off control circuit controls the control module to power off.

7. The voice-controlled power-off method for deep-sea sealed compartments as described in claim 6, characterized in that, The method further includes: In response to voice information, the voice recognition submodule identifies whether the controlling entity in the voice information is the target entity; If yes, wake up the voice module; if no, control the voice module to enter sleep mode and continue listening to voice information.

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