Multi-sensor fusion fault detection and self-recovery device

Abstract

The invention provides a multi-sensor fusion fault detection and self-recovery device which is applied to the technical field of fault protection. The device comprises a multi-parameter acquisition module, a control module and an execution module, the multi-parameter acquisition module is used for acquiring cavity environment parameters of to-be-tested equipment, and the cavity environment parameters comprise at least one of the following parameters: a voltage parameter, a current parameter, a temperature parameter, a humidity parameter, an air pressure parameter, a water leakage state parameter and an insulation parameter; the control module is used for receiving the cavity environment parameters and performing multi-parameter collaborative judgment according to the cavity environment parameters; and the execution module is used for executing corresponding control actions according to the judgment result of the control module, and the control actions comprise at least one of the following operations: equipment operation maintenance operation, regulation and control operation, power-off operation and recovery operation.

Description

Technical Field

[0001] This invention relates to the field of fault protection technology, and in particular to a multi-sensor fusion fault detection and self-recovery device. Background Technology

[0002] In underwater engineering scenarios such as seabed observation networks, the junction box, as a core device, needs to achieve stable voltage transformation, while also monitoring the temperature, humidity, and leakage status inside the cavity to ensure the continuous and reliable operation of downstream loads and the overall system, and to avoid observation interruptions or a surge in maintenance costs due to equipment malfunctions.

[0003] In the prior art, the power conversion module of the junction box usually has a built-in fixed threshold protection unit, which triggers overvoltage, overcurrent and short circuit protection by preset voltage and current thresholds, and the protection action directly cuts off the power supply to the downstream stage; although some junction boxes are equipped with temperature, humidity, water leakage and other monitoring sensors, each sensor only performs preset actions based on its own single parameter threshold.

[0004] However, existing technical solutions have significant drawbacks: First, the protection threshold is fixed in hardware and cannot be flexibly adjusted according to actual working conditions. Furthermore, manual reset is required after a fault is triggered, and self-recovery capability is lacking. Second, judgment based on a single parameter is prone to misjudgment, and all anomalies result in direct power outages, making it impossible to obtain system status parameters at the time of the fault, which makes fault location difficult. Third, after a system anomaly, the docking box needs to be retrieved and the cavity opened for inspection, which significantly increases operation and maintenance costs and makes it difficult to meet the requirements for long-term stable operation of underwater observation systems. Summary of the Invention

[0005] This invention provides a multi-sensor fusion fault detection and self-recovery device to solve the problems of fixed protection thresholds, power outages due to single-parameter misjudgment, difficulty in fault location and high operation and maintenance costs in traditional underwater equipment. It can realize multi-parameter collaborative monitoring, hierarchical response and automatic recovery, reduce misjudgment and operation and maintenance costs, and ensure the stable operation of the equipment under test.

[0006] This invention also provides a multi-sensor fusion fault detection and self-recovery device, comprising the following modules: a multi-parameter acquisition module, a control module, and an execution module; the control module is electrically connected to the multi-parameter acquisition module, and the execution module is electrically connected to the control module; the multi-parameter acquisition module is used to acquire cavity environmental parameters of the device under test, the cavity environmental parameters including at least one of the following: voltage parameter, current parameter, temperature parameter, humidity parameter, air pressure parameter, leakage status parameter, and insulation parameter; the control module is used to receive the cavity environmental parameters and perform multi-parameter collaborative judgment based on the cavity environmental parameters; the execution module is used to execute corresponding control actions based on the judgment result of the control module, the control actions including at least one of the following: maintaining device operation, adjustment operation, power-off operation, and recovery operation.

[0007] According to the present invention, a multi-sensor fusion fault detection and self-recovery device is provided, wherein the voltage parameter includes an input voltage; the control module is used to receive the input voltage and determine whether the input voltage exceeds the input voltage monitoring threshold; the execution module is used to perform a power-off operation if the threshold is exceeded, and to restore or maintain power supply if the threshold is not exceeded.

[0008] According to the present invention, a multi-sensor fusion fault detection and self-recovery device is provided, wherein the temperature parameter is the temperature of a target part of a cavity; the control module is used to receive the temperature of the target part and determine whether the temperature of the target part exceeds a first temperature monitoring threshold and / or a second temperature monitoring threshold, wherein the first temperature monitoring threshold is less than the second temperature monitoring threshold; the execution module is used to, when the cooling device is off and the power supply is on, activate the cooling device if the temperature exceeds the first temperature monitoring threshold but does not exceed the second temperature monitoring threshold; when the cooling device is on and the power supply is on, perform a power-off operation if the temperature exceeds the second temperature monitoring threshold; when the cooling device is on and the power supply is off, restore the power supply if the temperature exceeds the first temperature monitoring threshold but does not exceed the second temperature monitoring threshold; and when the cooling device is on and the power supply is on, deactivate the cooling device if the temperature does not exceed the first temperature monitoring threshold.

[0009] According to the present invention, a multi-sensor fusion fault detection and self-recovery device is provided, wherein the humidity parameter is the internal humidity of a cavity; the control module is used to receive the internal humidity of the cavity and the leakage status parameter, and determine whether the internal humidity of the cavity exceeds the humidity monitoring threshold; the execution module is used to confirm that water seepage has occurred inside the cavity if the internal humidity of the cavity exceeds the humidity monitoring threshold and a leakage signal is detected; if the internal humidity of the cavity does not exceed the humidity monitoring threshold or no leakage signal is detected, the current state is maintained.

[0010] According to the multi-sensor fusion fault detection and self-recovery device provided by the present invention, the control module is further configured to receive the air pressure parameter and the insulation parameter, and combine the air pressure parameter and the insulation parameter to determine water leakage.

[0011] According to the present invention, a multi-sensor fusion fault detection and self-recovery device includes a control module for receiving insulation parameters, temperature parameters, humidity parameters, and current parameters; determining whether the insulation parameters are below an insulation monitoring threshold; and comprehensively judging the system status by combining the temperature parameters, humidity parameters, and current parameters. The execution module is specifically configured to: if the insulation parameters are below the insulation monitoring threshold and the temperature parameters exceed a third temperature monitoring threshold, and the insulation parameters subsequently recover to above the third temperature monitoring threshold, then maintain system power output and record first abnormal information, which indicates that the system fault is a reversible insulation change caused by a temperature anomaly; if the insulation parameters are below the insulation monitoring threshold and the temperature parameters subsequently recover to above the third temperature monitoring threshold, then maintain system power output and record first abnormal information, which indicates that the system fault is a reversible insulation change caused by a temperature anomaly; if the insulation parameters are below the insulation monitoring threshold and the temperature parameters subsequently recover to above the third temperature monitoring threshold, then maintain system power output and record first abnormal information, which indicates that the system fault is a reversible insulation change caused by a temperature anomaly. If, after the temperature rises above the third temperature monitoring threshold, the insulation parameter remains below the insulation monitoring threshold, a further inspection and troubleshooting action is triggered. If the insulation parameter is below the insulation monitoring threshold and water leakage is confirmed inside the system cavity, a first alarm action is triggered, indicating that the system fault is an insulation abnormality caused by water leakage in the cavity. If only the insulation parameter is below the insulation monitoring threshold, and the temperature, humidity, and current parameters are all within the normal range, the system power output is maintained and a second abnormality information is recorded, indicating that the system fault is an insulation material abnormality. If the insulation parameter is below the insulation monitoring threshold and the current parameter exceeds the current monitoring threshold, a second alarm action is triggered, indicating that the system fault is an internal electrical fault.

[0012] According to the present invention, a multi-sensor fusion fault detection and self-recovery device is provided, wherein the voltage parameter includes an output voltage and the current parameter includes an output current; the control module is used to continuously monitor the output voltage and the output current; and the execution module is used to shut down the output if the output voltage exceeds an output voltage threshold range or the output current exceeds an output current threshold range.

[0013] According to the present invention, a multi-sensor fusion fault detection and self-recovery device is provided, wherein the control module is used to monitor the load current and insulation information of each load circuit in real time; and the execution module is used to control the shutdown of the target load circuit if the load current of the target load circuit exceeds the load current threshold range or the insulation value exceeds the insulation threshold range.

[0014] According to the present invention, a multi-sensor fusion fault detection and self-recovery device further includes a communication module and a threshold configuration module. The communication module is electrically connected to the control module, and the threshold configuration module is electrically connected to the control module. The communication module is used to transmit the cavity environment parameters, the judgment result of the control module, and the action status of the execution module to the shore-based platform. The threshold configuration module is used to receive the threshold adjustment command transmitted by the shore-based platform through the communication module and send the threshold adjustment command to the control module. The control module is used to reconfigure the input voltage monitoring threshold, the first temperature monitoring threshold, the second temperature monitoring threshold, the third temperature monitoring threshold, the humidity monitoring threshold, the insulation monitoring threshold, the output voltage threshold range, the output current threshold range, and the load current threshold range according to the threshold adjustment command.

[0015] According to the multi-sensor fusion fault detection and self-recovery device provided by the present invention, the communication module is further configured to receive a status query command sent by a shore-based platform; the control module is further configured to, after receiving the status query command, retrieve cavity environment parameters, judgment results and execution module action status within a preset time period, and generate status feedback data; the communication module is further configured to transmit the status feedback data to the shore-based platform, wherein the preset time period is set by the command of the shore-based platform.

[0016] The multi-sensor fusion fault detection and self-recovery device provided by this invention features a multi-parameter acquisition module that can collect various cavity environmental parameters such as voltage, current, temperature, humidity, air pressure, water leakage status, and insulation parameters. This provides comprehensive data support for system status judgment, avoiding misjudgments or omissions due to incomplete parameter acquisition. The control module can collaboratively judge multiple cavity environmental parameters, accurately identifying fault types and severity by combining multi-parameter correlations, thus solving the problem of easily triggering protection actions by traditional single-parameter judgment. The execution module can perform various control actions such as maintaining operation, regulation, power-off, and recovery based on the collaborative judgment results, enabling graded fault response and automatic recovery after fault clearance, improving the system's continuous operation capability. The communication module can transmit cavity environmental parameters, judgment results, and action status to the shore-based platform, allowing the shore-based end to remotely monitor equipment operating status and fault details in real time, eliminating the need for frequent retrieval and cavity opening for troubleshooting, significantly reducing maintenance costs. In this way, the shortcomings of traditional solutions, such as fixed and unadjustable thresholds, lack of self-recovery capability, difficulty in fault location, and high operation and maintenance costs, can be specifically addressed, effectively ensuring the long-term stable operation of the equipment under test and meeting the reliable operation requirements of underwater engineering scenarios such as seabed observation networks. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in this invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the multi-sensor fusion fault detection and self-recovery device provided by the present invention; Figure 2 This is one of the schematic diagrams of the processing flow of the multi-sensor fusion fault detection and self-recovery device provided by the present invention; Figure 3 This is the second schematic diagram of the processing flow of the multi-sensor fusion fault detection and self-recovery device provided by the present invention. Detailed Implementation

[0019] 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 with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, 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.

[0020] It should be noted that in the embodiments of this application, the words "exemplary" or "for example" are used to indicate examples, illustrations, or explanations. Any embodiment or design scheme described as "exemplary" or "for example" in the embodiments of this application should not be construed as being more preferred or advantageous than other embodiments or design schemes. Specifically, the use of the words "exemplary" or "for example" is intended to present the relevant concepts in a specific manner.

[0021] It should be noted that, in this document, 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 a process, method, article, or apparatus. Without further limitations, 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. Furthermore, it should be noted that the scope of the methods and apparatuses in the embodiments of this application is not limited to performing functions in the order shown or discussed, but may also include performing functions substantially simultaneously or in the reverse order, depending on the functions involved. For example, the described methods may be performed in a different order than described, and various steps may be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.

[0022] To facilitate a clear description of the technical solutions of the embodiments of this application, the terms "first" and "second" are used in the embodiments of this application to distinguish the same or similar items with essentially the same function and effect. Those skilled in the art can understand that the terms "first" and "second" are not intended to limit the quantity or execution order.

[0023] This application describes some exemplary embodiments for illustrative purposes. It should be understood that this application may be implemented in other ways not specifically shown in the accompanying drawings.

[0024] like Figure 1 As shown in the figure, this application provides a multi-sensor fusion fault detection and self-recovery device, which is mainly used in underwater sealed equipment such as seabed observation network junction boxes. It can solve the problems of fixed protection thresholds, single parameter misjudgment, difficulty in fault location and high operation and maintenance costs of traditional underwater equipment. It can realize full-process fault management of "multi-parameter collaborative monitoring - hierarchical intelligent response - remote dynamic control".

[0025] The multi-sensor fusion fault detection and self-recovery device may include: a multi-parameter acquisition module 100, a control module 200, an execution module 300, a communication module 400, and a threshold configuration module 500. The control module 200 is electrically connected to the multi-parameter acquisition module 100, the execution module 300 is electrically connected to the control module 200, the communication module 400 is electrically connected to the control module 200, and the threshold configuration module 500 is electrically connected to the control module 200.

[0026] The multi-parameter acquisition module 100 is used to acquire cavity environmental parameters of the device under test. The cavity environmental parameters include at least one of the following: voltage parameters, current parameters, temperature parameters, humidity parameters, air pressure parameters, water leakage status parameters, and insulation parameters.

[0027] It should be noted that, in terms of hardware implementation, the multi-parameter acquisition module 100 can adopt either of the following two configuration methods: one is to use multiple single-function sensors, such as independent voltage sensors, platinum resistance temperature sensors, capacitive humidity sensors, electrode-type water leakage sensors, etc., each corresponding to the acquisition of a single parameter; the other is to use an integrated multi-parameter sensor, such as a composite sensor that simultaneously possesses temperature, humidity, and air pressure acquisition functions, which can reduce the module size and installation space, and adapt to scenarios where the space inside the device under test is limited. Regardless of the configuration adopted, it must meet the waterproof sealing level and corrosion resistance requirements of underwater equipment to ensure long-term stable operation in seawater immersion and high salt spray environments.

[0028] The control module 200 is used to receive the cavity environment parameters and perform multi-parameter collaborative judgment based on the cavity environment parameters.

[0029] It should be noted that the control module 200 can be a microcontroller unit (MCU). The MCU has multiple analog input interfaces, digital input / output interfaces, and communication interfaces, and can be stably electrically connected to the multi-parameter acquisition module 100, the execution module 300, the communication module 400, and the threshold configuration module 500, respectively.

[0030] The execution module 300 is used to execute corresponding control actions according to the judgment result of the control module. The control actions include at least one of the following: maintaining equipment operation, adjustment operation, power-off operation, and recovery operation.

[0031] The communication module 400 is used to transmit the cavity environment parameters, the judgment result of the control module, and the action status of the execution module to the shore-based platform.

[0032] Specifically, the communication module 400 is also used to receive a status query command sent by the shore-based platform; the control module 200 is also used to retrieve the cavity environment parameters, judgment results and execution module action status within a preset time period after receiving the status query command, and generate status feedback data; the communication module 400 is also used to transmit the status feedback data to the shore-based platform, and the preset time period is set by the instructions of the shore-based platform.

[0033] The threshold configuration module 500 is used to receive the threshold adjustment command transmitted by the shore-based platform through the communication module 400, and send the threshold adjustment command to the control module; the control module 200 is used to reconfigure the input voltage monitoring threshold, the first temperature monitoring threshold, the second temperature monitoring threshold, the third temperature monitoring threshold, the humidity monitoring threshold, the insulation monitoring threshold, the output voltage threshold range, the output current threshold range, and the load current threshold range according to the threshold adjustment command.

[0034] The specific scenario judgment logic of the control module 200 and the execution module 300 will be explained separately below.

[0035] (1) Input voltage judgment Optionally, the voltage parameter includes an input voltage; the control module 200 is used to receive the input voltage and determine whether the input voltage exceeds the input voltage monitoring threshold; the execution module is used to perform a power-off operation if the threshold is exceeded, and to restore or maintain power supply if the threshold is not exceeded.

[0036] Specifically, such as Figure 2 As shown, after receiving the input voltage Vin, an overvoltage protection judgment is performed, that is, it is compared with the preset input voltage monitoring threshold to determine whether there is an overvoltage risk; if the threshold is reached, the input voltage is determined to be overvoltage, and a power-off operation is performed to cut off the downstream power supply voltage; if the threshold is not triggered, the power supply is automatically restored; if the voltage is normal, the power supply conduction state is maintained.

[0037] (2) Temperature grading judgment Optionally, the temperature parameter is the temperature of the target part of the cavity; the control module 200 is used to receive the temperature of the target part and determine whether the temperature of the target part exceeds a first temperature monitoring threshold and / or a second temperature monitoring threshold, wherein the first temperature monitoring threshold is less than the second temperature monitoring threshold; the execution module 300 is used to, when the cooling device is off and the power supply is on, start the cooling device if the temperature exceeds the first temperature monitoring threshold but does not exceed the second temperature monitoring threshold; when the cooling device is on and the power supply is on, perform a power-off operation if the temperature exceeds the second temperature monitoring threshold; when the cooling device is on and the power supply is off, restore the power supply if the temperature exceeds the first temperature monitoring threshold but does not exceed the second temperature monitoring threshold; and when the cooling device is on and the power supply is on, turn off the cooling device if the temperature does not exceed the first temperature monitoring threshold.

[0038] Specifically, such as Figure 2As shown, the temperature parameters of the target part of the receiving cavity are compared with the first set value (i.e., the first temperature monitoring threshold) and the second set value (i.e., the second temperature monitoring threshold) to distinguish three states: "heat dissipation needs to be activated", "power-off protection needs to be activated", and "power supply needs to be restored". When the heat dissipation device is off and the power supply is on, if the temperature reaches the first temperature monitoring threshold, the heat dissipation control unit activates the heat dissipation device; if the temperature still reaches the second temperature monitoring threshold during heat dissipation, the power is cut off; if the temperature drops below the second temperature monitoring threshold after the power is cut off, the power supply is automatically restored; if the temperature is lower than the first temperature monitoring threshold, the heat dissipation device is turned off.

[0039] (3) Comprehensive judgment of seepage Optionally, the humidity parameter is the humidity inside the cavity; the control module 200 is used to receive the humidity inside the cavity and the leakage status parameter, and determine whether the humidity inside the cavity exceeds the humidity monitoring threshold; the execution module 300 is used to confirm that water seepage has occurred inside the cavity if the humidity inside the cavity exceeds the humidity monitoring threshold and a leakage signal is detected; if the humidity inside the cavity does not exceed the humidity monitoring threshold or no leakage signal is detected, the current state is maintained.

[0040] Optionally, the control module 200 is further configured to receive the air pressure parameters and the insulation parameters, and combine the air pressure parameters and the insulation parameters to determine water leakage. In other words, air pressure monitoring and insulation monitoring can serve as auxiliary reference information for water leakage determination, thereby enhancing the accuracy of the determination or identifying specific types of leakage.

[0041] Specifically, using humidity and leakage status parameters as the core judgment conditions, when the humidity inside the cavity exceeds the humidity monitoring threshold and a leakage alarm signal is detected, the air pressure parameters and insulation parameters can be combined for cross-verification to eliminate false judgment scenarios where humidity simply increases but there is no leakage, and accurately identify the type of water seepage in the cavity.

[0042] It should be noted that water seepage can lead to an abnormal increase in air pressure and a decrease in insulation value inside the cavity. Types of water seepage in the cavity can include slow leakage, local dripping, etc.

[0043] (4) Determining the root cause of insulation abnormalities Optionally, the control module 200 is used to receive the insulation parameter, the temperature parameter, the humidity parameter and the current parameter, determine whether the insulation parameter is lower than the insulation monitoring threshold, and comprehensively determine the system status by combining the temperature parameter, humidity parameter and current parameter; The execution module 300 is specifically used to: if the insulation parameter is lower than the insulation monitoring threshold and the temperature parameter exceeds the third temperature monitoring threshold, and the insulation parameter is simultaneously restored to above the insulation monitoring threshold when the temperature parameter is subsequently restored to the third temperature monitoring threshold, then maintain the system power supply output and record the first abnormal information, the first abnormal information being used to indicate that the system fault is a reversible insulation change caused by temperature abnormality; If the insulation parameter is lower than the insulation monitoring threshold and the temperature parameter recovers to above the third temperature monitoring threshold, but the insulation parameter is still lower than the insulation monitoring threshold, then an action to further check and troubleshoot the anomaly is triggered. If the insulation parameter is lower than the insulation monitoring threshold and it is determined that water seepage has occurred inside the system cavity, a first alarm action is triggered. The first alarm action is used to indicate that the system fault is an insulation abnormality caused by water leakage in the cavity. If only the insulation parameter is lower than the insulation monitoring threshold, and the temperature parameter, humidity parameter, and current parameter are all within the normal range, then the system power supply output is maintained and the second abnormal information is recorded. The second abnormal information is used to indicate that the system fault is an abnormality of the insulation material. If the insulation parameter is lower than the insulation monitoring threshold and the current parameter exceeds the current monitoring threshold, a second alarm action is triggered. The second alarm action is used to indicate that the system fault is an internal electrical fault.

[0044] Specifically, the system uses insulation parameters as the core, combined with temperature, humidity, and current parameters to differentiate the causes of anomalies. For example, if the insulation value is below the insulation monitoring threshold, and the temperature exceeds the third temperature monitoring threshold and the insulation value recovers after cooling, it is determined to be a "reversible insulation change caused by temperature." If a water seepage signal is detected at the same time, it is determined to be "water leakage causing insulation anomaly." If only the insulation value is low and other parameters are normal, it is determined to be "abnormal aging of insulation materials." Then, differentiated actions can be performed for insulation anomalies with different root causes: reversible insulation changes maintain power supply and record the anomaly; water leakage causing insulation anomalies triggers an emergency alarm; insulation material anomalies maintain power supply and record; internal electrical faults immediately execute power cut-off to prevent the fault from escalating.

[0045] For example, such as Figure 3As shown, the process first determines if there is an insulation abnormality. If no insulation abnormality is found, it proceeds directly to the "Continuous Insulation Monitoring" stage, and the process ends. If an insulation abnormality is found, other parameters are then checked for normality. If other parameters are normal, the insulation material is identified as abnormal, and the process continues to the "Continuous Insulation Monitoring" stage, ending the process. If other parameters are abnormal, further checks are conducted to determine if there is water leakage, temperature rise, or abnormal current. If water leakage is determined to be causing the insulation abnormality, it is addressed immediately, and the process continues to the "Continuous Insulation Monitoring" stage, ending the process. If the temperature rises, it is checked whether the insulation recovers after the temperature returns to normal. If it does, it is determined to be a reversible insulation change caused by the temperature abnormality. Output is maintained and monitored during operation and maintenance, and the process continues to the "Continuous Insulation Monitoring" stage, ending the process. If the insulation does not recover after the temperature returns to normal, further analysis is required, and the process continues to the "Continuous Insulation Monitoring" stage, ending the process. If the current is abnormal, it is determined to be an electrical fault, and the process continues to the "Continuous Insulation Monitoring" stage, ending the process.

[0046] (5) Output parameters and load circuit judgment Optionally, the voltage parameter further includes an output voltage, and the current parameter includes an output current; the control module 200 is used to continuously monitor the output voltage and the output current; the execution module 300 is used to shut down the output if the output voltage exceeds an output voltage threshold range, or if the output current exceeds an output current threshold range. The output can be manually turned on again after the cause of the abnormality is determined and the fault is resolved.

[0047] Optionally, the control module 200 is used to monitor the load current and insulation information of each load circuit in real time; the execution module 300 is used to control the shutdown of the target load circuit if the load current of the target load circuit exceeds the load current threshold range, or the insulation value exceeds the insulation threshold range, thereby maintaining the stable operation of other circuits.

[0048] Specifically, the system continuously monitors the output voltage, output current, and the current and insulation values ​​of each load circuit to determine if there are any abnormalities in the power supply link or single-circuit faults. If the output voltage or output current exceeds the threshold, the main output is shut down, and manual troubleshooting and restoration are required. If the current or insulation of a single load circuit is abnormal, only that circuit is shut down to ensure that other circuits operate normally.

[0049] In this embodiment, the multi-parameter acquisition module can collect various cavity environmental parameters such as voltage, current, temperature, humidity, air pressure, leakage status, and insulation parameters, thus providing comprehensive data support for system status judgment and avoiding misjudgment or omission of faults due to incomplete parameter acquisition. The control module can collaboratively judge multiple cavity environmental parameters, thus accurately identifying fault types and severity by combining multi-parameter correlations, solving the problem of easily triggering protection actions by traditional single-parameter judgment. The execution module can execute various control actions such as maintaining operation, regulation, power-off, and recovery based on the collaborative judgment results, thus achieving graded fault response and automatic recovery after fault clearance, improving the system's continuous operation capability. The communication module can transmit cavity environmental parameters, judgment results, and action status to the shore-based platform, allowing the shore-based end to remotely monitor equipment operating status and fault details in real time, eliminating the need for frequent retrieval and cavity opening for troubleshooting, significantly reducing maintenance costs. In this way, the shortcomings of traditional solutions, such as fixed and unadjustable thresholds, lack of self-recovery capability, difficulty in fault location, and high operation and maintenance costs, can be specifically addressed, effectively ensuring the long-term stable operation of the equipment under test and meeting the reliable operation requirements of underwater engineering scenarios such as seabed observation networks.

[0050] The device embodiments described above are merely illustrative. The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the modules can be selected to achieve the purpose of this embodiment according to actual needs. Those skilled in the art can understand and implement this without any creative effort.

[0051] Through the above description of the embodiments, those skilled in the art can clearly understand that each embodiment can be implemented by means of software plus necessary general-purpose hardware platforms, and of course, it can also be implemented by hardware. Based on this understanding, the above technical solutions, in essence or the part that contributes to the prior art, can be embodied in the form of a software product. This computer software product can be stored in a computer-readable storage medium, such as ROM / RAM, magnetic disk, optical disk, etc., and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute the methods described in the various embodiments or some parts of the embodiments.

[0052] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A multi-sensor fusion fault detection and self-recovery device, characterized in that, include: Multi-parameter acquisition module, control module, and execution module; The control module is electrically connected to the multi-parameter acquisition module, and the execution module is electrically connected to the control module; The multi-parameter acquisition module is used to acquire cavity environmental parameters of the device under test. The cavity environmental parameters include at least one of the following: voltage parameters, current parameters, temperature parameters, humidity parameters, air pressure parameters, water leakage status parameters, and insulation parameters. The control module is used to receive the cavity environment parameters and perform multi-parameter collaborative judgment based on the cavity environment parameters; The execution module is used to execute corresponding control actions based on the judgment result of the control module. The control actions include at least one of the following: maintaining equipment operation, adjustment operation, power-off operation, and recovery operation.

2. The multi-sensor fusion fault detection and self-recovery device according to claim 1, characterized in that, The voltage parameters include the input voltage; The control module is used to receive the input voltage and determine whether the input voltage exceeds the input voltage monitoring threshold. The execution module is used to perform a power-off operation if the limit is exceeded. If the limit is not exceeded, power supply will be restored or maintained.

3. The multi-sensor fusion fault detection and self-recovery device according to claim 1, characterized in that, The temperature parameter is the temperature of the target part of the cavity; The control module is used to receive the temperature of the target part and determine whether the temperature of the target part exceeds a first temperature monitoring threshold and / or a second temperature monitoring threshold, wherein the first temperature monitoring threshold is less than the second temperature monitoring threshold. The execution module is configured to activate the heat dissipation device if the first temperature monitoring threshold is exceeded but the second temperature monitoring threshold is not exceeded when the heat dissipation device is in the off state and the power supply device is in the on state. If the second temperature monitoring threshold is exceeded when the heat dissipation device is turned on and the power supply device is turned on, a power-off operation will be performed. When the heat dissipation device is on and the power supply device is off, if the temperature exceeds the first temperature monitoring threshold but does not exceed the second temperature monitoring threshold, the power supply is restored. If the first temperature monitoring threshold is not exceeded when the heat dissipation device is turned on and the power supply device is turned on, the heat dissipation device will be turned off.

4. The multi-sensor fusion fault detection and self-recovery device according to claim 1, characterized in that, The humidity parameter refers to the humidity inside the cavity; The control module is used to receive the humidity and leakage status parameters inside the cavity and determine whether the humidity inside the cavity exceeds the humidity monitoring threshold. The execution module is configured to confirm that water seepage has occurred inside the cavity if the humidity inside the cavity exceeds the humidity monitoring threshold and a water leakage signal is detected; and to maintain the current state if the humidity inside the cavity does not exceed the humidity monitoring threshold or no water leakage signal is detected.

5. The multi-sensor fusion fault detection and self-recovery device according to claim 4, characterized in that, The control module is also used to receive the air pressure parameters and the insulation parameters, and to determine water leakage by combining the air pressure parameters and the insulation parameters.

6. The multi-sensor fusion fault detection and self-recovery device according to claim 1, characterized in that, The control module is used to receive the insulation parameter, the temperature parameter, the humidity parameter and the current parameter, determine whether the insulation parameter is lower than the insulation monitoring threshold, and comprehensively determine the system status by combining the temperature parameter, humidity parameter and current parameter. The execution module is specifically used to: if the insulation parameter is lower than the insulation monitoring threshold and the temperature parameter exceeds the third temperature monitoring threshold, and the insulation parameter is simultaneously restored to above the insulation monitoring threshold when the temperature parameter is subsequently restored to the third temperature monitoring threshold, then maintain the system power supply output and record the first abnormal information, the first abnormal information being used to indicate that the system fault is a reversible insulation change caused by temperature abnormality; If the insulation parameter is lower than the insulation monitoring threshold and the temperature parameter recovers to above the third temperature monitoring threshold, but the insulation parameter is still lower than the insulation monitoring threshold, then an action to further check and troubleshoot the anomaly is triggered. If the insulation parameter is lower than the insulation monitoring threshold and it is determined that water seepage has occurred inside the system cavity, a first alarm action is triggered. The first alarm action is used to indicate that the system fault is an insulation abnormality caused by water leakage in the cavity. If only the insulation parameter is lower than the insulation monitoring threshold, and the temperature parameter, humidity parameter, and current parameter are all within the normal range, then the system power supply output is maintained and the second abnormal information is recorded. The second abnormal information is used to indicate that the system fault is an abnormality of the insulation material. If the insulation parameter is lower than the insulation monitoring threshold and the current parameter exceeds the current monitoring threshold, a second alarm action is triggered. The second alarm action is used to indicate that the system fault is an internal electrical fault.

7. The multi-sensor fusion fault detection and self-recovery device according to claim 1, characterized in that, The voltage parameter includes the output voltage, and the current parameter includes the output current; The control module is used to continuously monitor the output voltage and the output current; The execution module is configured to shut down the output if the output voltage exceeds the output voltage threshold range or the output current exceeds the output current threshold range.

8. The multi-sensor fusion fault detection and self-recovery device according to claim 1, characterized in that, The control module is used to monitor the load current and insulation information of each load circuit in real time. The execution module is used to control the shutdown of the target load circuit if the load current of the target load circuit exceeds the load current threshold range or the insulation value exceeds the insulation threshold range.

9. The multi-sensor fusion fault detection and self-recovery device according to any one of claims 1-8, characterized in that, It also includes a communication module and a threshold configuration module, wherein the communication module is electrically connected to the control module, and the threshold configuration module is electrically connected to the control module; The communication module is used to transmit the cavity environment parameters, the judgment result of the control module, and the action status of the execution module to the shore-based platform. The threshold configuration module is used to receive the threshold adjustment command transmitted by the shore-based platform through the communication module, and send the threshold adjustment command to the control module; The control module is used to reconfigure the input voltage monitoring threshold, the first temperature monitoring threshold, the second temperature monitoring threshold, the third temperature monitoring threshold, the humidity monitoring threshold, the insulation monitoring threshold, the output voltage threshold range, the output current threshold range, and the load current threshold range according to the threshold adjustment command.

10. The multi-sensor fusion fault detection and self-recovery device according to claim 9, characterized in that, The communication module is also used to receive status query commands sent by the shore-based platform. The control module is also used to retrieve cavity environment parameters, judgment results and execution module action status within a preset time period after receiving the status query instruction, and generate status feedback data. The communication module is also used to transmit the status feedback data to the shore-based platform, and the preset time period is set by instructions from the shore-based platform.

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