Alarm system and device for offshore operation personnel falling into water

Abstract

The utility model discloses an alarm system and device for offshore operation personnel falling into water, and relates to the field of automatic detection. The system comprises a water falling detection circuit, a control circuit and an alarm circuit, the falling-into-water detection circuit is connected with the control circuit and is used for detecting the content of water particles entering the sensor and the airflow state to judge whether a person falling-into-water event occurs or not and outputting a falling-into-water detection signal to be transmitted to the control circuit; the control circuit is connected with the alarm circuit, the control circuit is used for receiving the water falling detection signal, and the alarm circuit carries out voice reminding when the characteristic value of the water falling detection signal exceeds a preset value. The system solves the problems of low water falling detection efficiency and single alarm in the prior art, achieves the detection of a water falling event through the monitoring of the content of particles in the water body and the air flow state in the sensor, gives out help to rescue workers through the key alarm module, voice prompt and position feedback, and improves the intelligent level of a water falling alarm system.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of automation detection, in particular to a falling into water alarm system and device for offshore workers. BACKGROUND

[0002] With the increasing number of water activities, the frequent occurrence of falling into water accidents has attracted widespread attention. Although manual observation of falling into water can reflect the abnormal activity of the falling person on the water surface to some extent, the accuracy and reliability are restricted by many factors, especially in the process of offshore work including the work of offshore workers, falling into water safety accidents occur frequently. The sensitivity of the existing sensor is directly related to its detection ability, however, the existing sensor often has the problem of insufficient sensitivity, which leads to the fact that the sensor cannot accurately capture the signal in weak water surface fluctuations or long-distance falling into water events, thereby causing false negatives. Different water environments have a significant impact on the detection effect of the sensor. For example, in water areas with strong wind and waves, the detection accuracy of the sensor will be greatly reduced; and in water areas with turbid water quality or a large amount of impurities, the detection ability of the sensor will also be severely disturbed. As a precision device, the sensor needs to be regularly maintained and calibrated. However, the sensor of the prior art often has the problem of high maintenance cost, which not only increases the operating cost of the system, but also may cause the performance of the sensor to decrease due to untimely maintenance.

[0003] At present, the existing personnel falling into water alarm device on the market is mostly based on simple circuit design, and lacks accurate classification and promptness for different abnormal situations. These devices can usually only send a single alarm signal (such as the sound of a key alarm module), and cannot provide specific location information to the user, so that the rescuers cannot timely know the location of the falling person. In addition, the existing alarm device also has deficiencies in intelligence and user experience. For the elderly or new users, the operation is complex and not intuitive. CONTENT OF THE INVENTION

[0004] The main purpose of the present application is to provide a falling into water alarm system for offshore workers, which aims to solve the problems of low detection efficiency and single alarm of the falling person in the prior art. By monitoring the content of water particles and the state of airflow in the sensor, the falling into water event is detected, and the rescue personnel are sent for help through the key alarm module, voice prompt and location feedback, thereby improving the intelligence level of the falling into water alarm system.

[0005] To achieve the above purpose, the embodiments of the present application provide a falling into water alarm system for offshore workers, which comprises a falling into water detection circuit, a control circuit and an alarm circuit; wherein:

[0006] The falling into water detection circuit is connected with the control circuit, and is used for detecting the content of water particles and the airflow state entering the sensor to determine whether a person falling into water event occurs and outputting a falling into water detection signal to the control circuit.

[0007] The control circuit is connected with the alarm circuit, and is used for receiving the falling into water detection signal, and when a characteristic value of the falling into water detection signal exceeds a preset value, the alarm circuit performs voice reminding.

[0008] In an embodiment, the falling into water alarm system for offshore workers further comprises a signal processing circuit; wherein:

[0009] The signal processing circuit is further connected with the control circuit, and the signal processing circuit amplifies and filters the collected falling into water signal, and performs analog-to-digital conversion to obtain the falling into water detection signal.

[0010] In an embodiment, the alarm circuit comprises a voice prompting module; wherein:

[0011] The voice prompting module is connected with the control circuit, and the voice prompting module is used for reporting falling into water information and remotely sending voice reminding to rescuers when receiving the characteristic value of the falling into water detection signal exceeding the preset value.

[0012] In an embodiment, the alarm circuit comprises a key alarm module; wherein:

[0013] The key alarm module is connected with the control circuit, and the key alarm module is used for providing a key alarm for the falling into water person, and emitting a high-frequency flashing light signal to the surrounding after the key alarm is triggered.

[0014] In an embodiment, the falling into water alarm system further comprises a communication module;

[0015] The communication module is connected with the control circuit, and the communication module is used for remotely transmitting the data signal generated by the control circuit.

[0016] In an embodiment, the communication module further comprises a 5G communication module and a dual-mode positioning module; wherein:

[0017] The 5G communication module is connected with the control circuit, and the 5G communication module is used for remotely transmitting the data signal of the control circuit;

[0018] The dual-mode positioning module is connected with the control circuit, and the dual-mode positioning module is used for providing position information to rescuers through a navigation system.

[0019] In an embodiment, the falling into water alarm system further comprises a storage module; wherein:

[0020] The storage module is connected with the control circuit, and is configured to store the data signal generated by the control circuit.

[0021] In an embodiment, the falling into water alarm system further comprises a power module; wherein:

[0022] The power module is connected with the control circuit, and is configured to provide electric energy for the control circuit.

[0023] The power module is further provided with a battery protection plate to ensure the safety of the power module, and to prompt the remaining power and the remaining use time for the battery capacity.

[0024] In an embodiment, the falling into water alarm system is further connected with an external terminal device.

[0025] To achieve the above-mentioned purpose, the application further provides a falling into water alarm device for offshore workers.

[0026] The above-mentioned one or more technical solutions provided by the application can have the following advantages or at least achieve the following technical effects:

[0027] The application discloses a falling into water alarm system and device for offshore workers, and belongs to the field of automatic detection. The system comprises a falling into water detection circuit, a control circuit and an alarm circuit. The falling into water detection circuit is connected with the control circuit, and is configured to detect the content of water particles and the airflow state in the sensor to determine whether a worker falling into water event occurs, and to generate an output detection signal and transmit the output detection signal to the control circuit. The control circuit is connected with the alarm circuit, and is configured to receive the falling into water detection signal. When the characteristic value of the falling into water detection signal exceeds a preset value, the alarm circuit performs voice reminding. The application solves the problems of low falling into water detection efficiency and single alarm in the prior art. By monitoring the content of water particles and the airflow state in the sensor, the falling into water event is detected. The key alarm module, voice reminding and position feedback are used to send a help call to the rescuer, and the intelligent level of the falling into water alarm system is improved. BRIEF DESCRIPTION OF DRAWINGS

[0028] In order to more clearly illustrate the technical solutions in the embodiments of the application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description only show some embodiments of the application, and for those skilled in the art, other drawings can also be obtained according to the structures shown in the drawings without any creative effort.

[0029] Figure 1 is a system structure schematic diagram of a first embodiment of a falling alarm system for offshore workers proposed by the embodiment of the present application;

[0030] Figure 2 is an alarm circuit structure schematic diagram of the falling alarm system for offshore workers proposed by the embodiment of the present application.

[0031] The implementation, functional features and advantages of the present application will be further described with reference to the embodiments and the accompanying drawings. DETAILED DESCRIPTION

[0032] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0033] It should be noted that if the embodiments of the present application involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement condition, etc. between components in a certain posture, and if the certain posture changes, the directional indications also change accordingly.

[0034] In addition, if the embodiments of the present application involve descriptions of “first”, “second”, etc., the descriptions of “first”, “second”, etc. are only for description purposes, and cannot be understood as indicating or implying the relative importance of the indicated technical features or implicitly indicating the number of the indicated technical features. Therefore, the features limited by “first”, “second” can explicitly or implicitly include at least one of the features. In addition, “and / or” or “and / or” appearing throughout the text means that the three parallel solutions are included, for example, “A and / or B” includes A solution, or B solution, or A and B solutions are satisfied at the same time. In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the realization of ordinary skilled in the art, when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, nor within the scope of protection claimed by the present application.

[0035] In order to realize the efficient use of the falling alarm system for offshore workers, this paper will introduce a kind of falling alarm system and device for offshore workers in detail. In view of the shortcomings of the prior art, the application adopts a high-sensitivity water particle sensor and an air flow sensor, which can monitor the micro water particles and air flow state in the sensor in real time, so as to accurately judge the occurrence of falling event. At the same time, the control circuit accurately processes and analyzes the signal, which improves the accuracy and reliability of the system. Compared with the prior art, the application not only has the function of voice reminding, but also realizes the position feedback and key alarm and other alarm modes. This greatly improves the diversity and flexibility of the alarm, so that the rescue personnel can quickly obtain the falling information and take action under different circumstances. The application realizes the real-time monitoring and automatic alarm function of the falling event by integrating advanced sensor technology and intelligent control algorithm. This not only improves the intelligent level of the system, but also reduces the cost and risk of manual intervention. The falling alarm system and device for offshore workers of the application is suitable for various water activities places, such as beach, swimming pool, reservoir, river, etc. At the same time, it can also be applied to offshore operation platform, ship and other offshore operation environment, which provides safety protection for offshore operation and offshore workers. By combining these functional components, the application provides timely fault detection and user reminder function, effectively improving the use efficiency and maintenance convenience of the equipment. Users can quickly respond to the needs of the equipment according to the voice reminder, thereby prolonging the service life of the equipment. The technical scheme adopts multiple alarm modes (such as key alarm module sound, voice reminder and positioning module information upload, etc.), and at the same time, through the priority sorting rule and continuous abnormal state detection mechanism, the occurrence of false alarm is prevented, and the reliability and stability of the equipment are improved.

[0036] Reference Figure 1 , Figure 1 is the system structure diagram of the first embodiment of the falling alarm system for offshore workers provided by the embodiment of the application.

[0037] In this embodiment, the falling alarm system for offshore workers includes a falling detection circuit, a control circuit and an alarm circuit; wherein:

[0038] The falling detection circuit is connected with the control circuit, and the falling detection circuit is used to detect the content of water particles and the air flow state in the sensor to judge whether a falling event occurs and output a falling detection signal to the control circuit;

[0039] The control circuit is connected with the alarm circuit, and the control circuit is used to receive the falling detection signal, and when the characteristic value of the falling detection signal exceeds the preset value, the alarm circuit performs voice reminding.

[0040] Specifically, in the present embodiment, the falling into water detection circuit is responsible for detecting the content of water particles and the air flow state in the sensor to determine whether a person falling into water event occurs, and outputs a falling into water detection signal; the control circuit is responsible for receiving and processing the signal, and once the characteristic value exceeds the preset value, the alarm circuit is triggered; the alarm circuit is responsible for sending a distress signal to the rescuer through various ways, including voice reminder and location information, etc. The falling into water detection circuit is one of the core parts of the system, which is responsible for real-time monitoring of the content of water particles and the air flow state in the sensor, so as to determine whether a falling into water event occurs. The falling into water detection circuit adopts a high-sensitivity water particle sensor and an air flow sensor. The water particle sensor can sense the tiny water particles in the sensor, and when a person falls into water, due to the content of the water flow, the sensor can quickly capture the change of these water particles; the air flow sensor is used to monitor the air flow state, and when the water splashes or waves produced by falling into water affect the air flow, the sensor can also sense the change. The signals captured by the sensor are processed through amplification, filtering, etc., and are converted into falling into water detection signals. These signals have specific characteristic values, such as amplitude, frequency, etc., which can reflect the intensity of falling into water and the water level depth information.

[0041] The control circuit is the central part of the system, responsible for receiving and processing signals transmitted by the water detection circuit. The control circuit is connected to the water detection circuit through an interface and receives real-time water detection signals. The control circuit further processes and analyzes the received signals, extracts characteristic values, and compares them with preset values. If the characteristic value exceeds the preset value, it is considered that a water event has occurred. Once a water event is detected, the control circuit will immediately trigger the alarm circuit and record the water time, location and other key information to provide data support for subsequent rescue. As the control center of the system, the control circuit first performs a self-checking program. The self-checking program includes checking whether the electrical connections of the water detection circuit, signal processing circuit, alarm circuit and other key components are normal, and whether each component is in a working state. The control circuit confirms the working state of each component by sending test signals and receiving feedback signals. In order to ensure that the alarm information can be accurately and timely transmitted to the user, the communication connection between the control circuit and the alarm circuit must be stable and reliable. Therefore, during the initialization phase, the control circuit will verify the communication connection between the alarm circuit (such as the key alarm module, positioning module, voice module, etc.) to ensure smooth communication. After completing the self-checking and communication verification, the control circuit will initialize the state of each module. This includes setting the threshold of water body particulate matter concentration (set according to actual application scenarios and user needs), and resetting the alarm state (to ensure that the system does not misreport under normal circumstances). In addition, the control circuit will also initialize other related parameters, such as the gain of the signal processing circuit and the parameters of the filter. After completing all initialization operations, the system enters standby mode. In standby mode, the control circuit will remain in a low-power state, waiting for the signal captured by the personnel falling into the water. At the same time, the control circuit will also perform simple self-checking operations at regular intervals to ensure that the system is always in a working state.

[0042] The alarm circuit is the output part of the system, responsible for sending a distress signal to rescuers through various means. The alarm circuit has a built-in voice synthesis module that can generate clear voice information to inform rescuers of the specific circumstances and location information of the water event. This approach is intuitive and easy to understand, allowing information to be quickly conveyed in emergency situations. The alarm circuit also has a location feedback function that can send the location information of the fallen person to the rescue center or nearby rescue equipment in real time. This greatly improves rescue efficiency, allowing rescuers to quickly locate and go to the water location. In addition to automatic alarm, the application also provides a key alarm module. In an emergency, the fallen person or his companions can trigger the alarm circuit by pressing the button to achieve manual alarm function. This increases the flexibility and reliability of the system. Once the signal characteristic value exceeds the preset value, the alarm circuit will start the alarm mechanism.

[0043] Based on the first embodiment of the present application, in the second embodiment of the present application, the same or similar contents as the above embodiment one can refer to the above introduction, and the subsequent will not be described. The offshore worker falling into the water alarm system further includes a signal processing circuit; wherein:

[0044] The signal processing circuit is further connected with the control circuit, and the signal processing circuit amplifies and filters the collected falling into the water signal, and performs analog-to-digital conversion to obtain the falling into the water detection signal.

[0045] Specifically, in this embodiment, the falling into the water detection circuit is one of the core components of the system, which can capture the weak electric signal generated by the impact of water particles in the airflow when the personnel falls into the water. The working principle of the falling into the water detection is based on the piezoelectric effect, that is, when the piezoelectric material is subjected to external force, it will generate electric charge or voltage change, and will generate weak electric signal. This signal will be captured and converted into an electric signal output. The main function of the signal processing circuit is to amplify, filter and analog-to-digital convert the electric signal output by the sensor. Because the signal output by the sensor is very weak, it needs to be amplified through an amplification circuit. At the same time, in order to remove the noise and interference in the signal, it also needs to be filtered through a filter circuit. Finally, through the analog-to-digital conversion circuit, the analog signal is converted into a digital signal, so that the control circuit can be processed subsequently. After receiving the digital signal output by the signal processing circuit, the control circuit will be further processed. First, the control circuit will calculate the amplitude and frequency of the signal and other characteristic values. These characteristic values can reflect the quantity and size of the water particles in the airflow. The control circuit will compare the amplitude, frequency and other characteristic values of the current signal with the preset threshold value. These threshold values are set according to the actual application scene and user demand, which can reflect the signal characteristic value range under different water particle concentration. By comparing the current signal characteristic value with the preset threshold value, according to the comparison result, the control circuit will determine whether to trigger the alarm. If the current signal characteristic value exceeds the preset threshold value, it means that the concentration of water particles in the environment is out of standard (falling into the water event occurs, not the influence of rainy weather or humid weather on the system), at this time the control circuit will trigger the alarm to prompt the rescue personnel to handle. If the current signal characteristic value is within the preset threshold value, it means that the concentration of water particles in the environment is normal, at this time the control circuit will not trigger the alarm. In addition to the automatic closing of the alarm module by the control circuit, the user can also cancel the alarm state by manually pressing the reset key. This is usually used to quickly restore the system state in the case of false alarm or misoperation leading to alarm. When the user presses the reset key, the control circuit will reset the alarm state and stop issuing the alarm prompt. At this time, the system reenters standby mode and waits for the next falling into the water event triggered detection signal. The system will return to standby mode and continue to wait for the falling into the water detection signal. In standby mode, the control circuit will maintain a low power consumption state to reduce energy consumption and prolong the service life of the system.

[0046] Further, in the embodiment, the alarm circuit comprises a voice prompt module; wherein:

[0047] The voice prompt module is connected with the control circuit, and the voice prompt module is configured to report the falling into water information and remotely send a voice prompt to the rescuer when the feature value of the falling into water detection signal exceeds the preset value.

[0048] Specifically, in the embodiment, the alarm circuit is responsible for conveying relevant information to the rescuer in various ways when a falling into water event is detected. Figure 2 is a schematic structural diagram of an alarm circuit of a falling into water alarm system for offshore workers according to an embodiment of the present application. The voice prompt module is an important component of the alarm circuit, which can start immediately and report the falling into water information after receiving the instruction of the control circuit, and inform the rescuer of the specific information of the falling into water event through the voice prompt. Once the feature value of the falling into water detection signal exceeds the preset threshold, it means that the falling into water situation that may endanger the safety of the personnel is detected, at which time the alarm circuit will trigger the function of the voice prompt module. The voice prompt module will start immediately and report the falling into water information after receiving the instruction. The reporting process includes sending an alarm signal to the central monitoring system, so that the relevant personnel can quickly know the occurrence of the falling into water event.

[0049] Further, in the embodiment, the alarm circuit comprises a key alarm module; wherein:

[0050] The key alarm module is connected with the control circuit, and the key alarm module is configured to provide a key alarm for the falling into water person, and emit a high-frequency flashing signal around after the key alarm is triggered.

[0051] Specifically, in the embodiment, the alarm circuit not only has high sensitivity of the falling into water automatic detection capability, but also integrates the key alarm module, which allows the falling into water person to trigger the alarm through the key in the emergency, and emit a high-frequency flashing signal around, thereby greatly improving the timeliness and accuracy of the rescue.

[0052] The key alarm module allows the person falling into the water to trigger an alarm by pressing a key in an emergency. Once the key is pressed, the key alarm module immediately sends an alarm signal to the control circuit, and after receiving the signal, the control circuit triggers other parts of the alarm circuit (such as voice, light alarm, etc.). At the same time, the key alarm module also emits a high-frequency flashing signal to attract the attention of rescue personnel. This function is particularly important when the person falling into the water cannot be detected in time by the automatic detection device. The key alarm module allows the person falling into the water to trigger an alarm by pressing a key in an emergency, which enables the person falling into the water to actively emit a flashing signal to the surrounding environment when they cannot be detected in time by the automatic detection device, thereby greatly improving the timeliness and accuracy of rescue. After triggering the alarm, the key alarm module emits a high-frequency flashing signal. This feature makes the flashing signal more easily detected and located by rescue personnel, thereby improving rescue efficiency. The key alarm module is simple and easy to use, and the person falling into the water only needs to press the key to trigger the alarm. This feature enables the person falling into the water to quickly and accurately trigger the alarm in an emergency without the need for complex operations. The key alarm module uses high-performance hardware and software design, and has high reliability. In harsh environments such as high temperature, humidity, or strong electromagnetic interference, the key alarm module can still work normally and accurately emit a flashing signal.

[0053] Further, in the present embodiment, the offshore worker falling alarm system further comprises a communication module;

[0054] The communication module is connected with the control circuit, and the communication module is used for transmitting the data signal generated by the control circuit over a long distance.

[0055] Specifically, in the present embodiment, the communication module is connected with the control circuit and is responsible for transmitting the data signal generated by the control circuit over a long distance, so that the user can view and process data in real time at a place far away from the monitoring site. The communication module uses advanced communication technologies such as wireless communication technology or wired communication technology (such as Ethernet, RS-485, etc.) to realize long-distance data transmission. This enables users to obtain monitoring data in real time at different geographical locations, improving the flexibility and convenience of the system. The communication module uses reliable communication protocols and data transmission mechanisms to ensure the accuracy and integrity of the data. During data transmission, the communication module performs error detection and correction to avoid data loss or damage. The communication module uses encryption technology to ensure the security of the data transmission process. This can prevent data from being intercepted or tampered with by unauthorized personnel, protecting the privacy and data security of the user.

[0056] The communication module generally has wide compatibility and can be connected and communicate with various devices and systems. This enables the marine worker falling into water alarm system to be integrated and interconnected with other environmental monitoring systems, data management systems or cloud platforms, etc., to realize data sharing and analysis. In the environment of marine fishing operation, ocean transportation, etc., the marine worker falling into water alarm system can transmit data to the central control room or the maritime cloud platform through the communication module.

[0057] Further, in the present embodiment, the communication module further comprises a 5G communication module and a dual-mode positioning module; wherein:

[0058] The 5G communication module is connected with the control circuit, and the 5G communication module is used for long-distance data transmission of the data signal of the control circuit;

[0059] The dual-mode positioning module is connected with the control circuit, and the dual-mode positioning module is used for providing position information to the rescuer through a navigation system.

[0060] Specifically, in the present embodiment, the 5G communication module and the dual-mode positioning module are the key components of the marine worker falling into water alarm system, which is responsible for realizing data transmission and communication between the system and external devices or cloud platforms. The 5G communication module is directly connected with the control circuit, and is responsible for long-distance and high-speed data transmission of the data signal of the control circuit. The 5G communication technology provides a strong guarantee for real-time transmission of falling into water alarm data with its ultra-high speed, ultra-large connection number and ultra-low time delay. In the event of falling into water, the 5G communication module can quickly transmit the position information and distress signal of the fallen person to the rescue center or the rescuer nearby, thereby greatly shortening the rescue response time. The control circuit encapsulates the position information and distress signal of the fallen person into a specific data packet format. In order to improve the reliability and anti-interference ability of data transmission, the 5G communication module will perform channel coding processing on the data packet. The data packet after channel coding will be modulated to a high-frequency carrier for transmission. At the receiving end, the 5G communication module will demodulate the received signal to recover the original data packet. The demodulated data packet will be subjected to channel decoding processing to recover the original data information. At the same time, the system will perform checking processing on the data packet to ensure the integrity and accuracy of the data. The 5G communication technology provides ultra-high data transmission rate, so that the falling into water alarm data can be transmitted to the rescue center in real time and quickly. The time delay of the 5G communication technology is extremely low, which ensures the real-time and accuracy of the falling into water alarm information. The 5G communication technology supports a large number of concurrent connections, which makes it possible for the falling into water alarm system to be widely used.

[0061] The dual-mode positioning module is another important component of the system, which is connected with the control circuit and is responsible for providing accurate location information to the rescuers through the navigation system. This module integrates GPS and Beidou two global satellite navigation systems, with all-weather, all-day, high-precision positioning capabilities. In the event of a fall, the dual-mode positioning module can quickly obtain the latitude and longitude information, altitude and other key data of the fallen person, and transmit these data to the rescue center or nearby rescuers through the 5G communication module. The GPS / Beidou dual-mode positioning module continuously receives navigation signals from GPS and / or Beidou satellites. These signals contain satellite position, time and other key information. The received satellite signals will go through a series of processing steps, including signal amplification, filtering, demodulation, etc., to extract satellite navigation information. According to the received satellite navigation information, the dual-mode positioning module will use specific algorithms for position calculation to calculate the accurate position information of the fallen person. The calculated position information will be packaged into a specific data packet format and transmitted to the 5G communication module through the control circuit for long-distance transmission. The dual-mode positioning module is not affected by weather, light and other environmental factors, and can provide stable positioning services in all-weather conditions. Both GPS and Beidou systems have global coverage, enabling the fallen alarm system to provide rescue support worldwide. Thanks to the application of the 5G communication module, the system can achieve long-distance and high-speed transmission of fallen alarm data. This enables the rescue center or nearby rescuers to receive the fallen person's distress signal and location information in the first time, thereby quickly starting the rescue action. The application of the dual-mode positioning module enables the system to have all-weather, all-day, high-precision positioning capabilities. In the event of a fall, the system can quickly obtain the accurate position information of the fallen person and transmit it to the rescue center or nearby rescuers, providing strong support for rescue operations.

[0062] Further, in the present embodiment, the offshore worker fall alarm system further comprises a storage module; wherein:

[0063] The storage module is connected with the control circuit, and the storage module is used for storing the data generated by the control circuit.

[0064] Specifically, in the present embodiment, the offshore worker fall alarm system is a comprehensive environmental monitoring solution, and its core is to accurately and timely monitor and process the detection data. In order to realize long-term storage and convenient access of data, the system is equipped with a storage module. The following is a detailed description of the storage module of the system:

[0065] The storage module is one of the key components of the offshore worker falling into the water alarm system, which is responsible for storing the data generated by the control circuit. These data include but are not limited to real-time values of dust concentration, historical data, alarm records, etc. Through the connection with the control circuit, the storage module realizes seamless storage and reading of data. The storage module has a large storage space and can store a large amount of dust concentration data. These data can be stored in chronological order or in a specific format for subsequent data analysis and processing. The storage module uses advanced data storage technology to ensure the safety and integrity of the data. During data storage, the storage module will perform error detection and correction to avoid data loss or damage. In addition, the storage module also supports data encryption function, further protecting the privacy and security of user data. The storage module has a standard interface and format, so that users can easily insert the SD card into the card reader or computer to read and backup data. This convenience allows users to access and analyze monitoring data anytime and anywhere, improving data utilization and system flexibility. The storage module uses durable storage media and has a long service life. This means that even in harsh environmental conditions, the storage module can maintain stable performance and data storage capacity. Users can query the past dust concentration situation through the historical data stored in the storage module to conduct trend analysis and environmental assessment. To prevent data loss or damage, users can backup the data in the storage module to a computer or other storage devices. In this way, even if the system fails or is damaged, users can recover data and continue analysis and processing. In some cases, due to unstable network or inability to connect to remote servers, users may need to monitor offline. At this time, the storage module can serve as a temporary data storage device to store monitoring data in the SD card, and then upload and analyze after the network is restored.

[0066] Further, in the present embodiment, the offshore worker falling into the water alarm system further comprises a power module; wherein:

[0067] The power module is connected with the control circuit, and the power module is used for providing electric energy for the control circuit;

[0068] The power module is also equipped with a battery protection board to ensure the safety of the power module, and to prompt the remaining power and the remaining use time for the battery capacity.

[0069] Specifically, in the present embodiment, the offshore worker falling into the water alarm system as a comprehensive environmental monitoring device, its stable operation cannot be separated from reliable power supply. In order to achieve this goal, the system is equipped with a power module. The following is a detailed description of the power module of the system:

[0070] The power module integrates battery protection board, power prompt circuit and power output functions, can provide stable, safe power for control circuit, and real-time display battery remaining power and expected use time. The power module has the characteristics of small size, light weight, high efficiency, safety, etc., and is widely used in smart phones, tablet computers, portable medical devices, outdoor exploration devices and other portable electronic devices that need to work for a long time. The battery protection board is one of the most important components in the power module, which is responsible for protecting the battery pack from overcharging, overdischarging, short circuit and other abnormal conditions, and ensuring the safe use of the battery. The battery protection board usually includes overcharge protection circuit, overdischarge protection circuit, short circuit protection circuit and temperature protection circuit. The overcharge protection circuit is used to prevent the battery pack from being damaged due to high voltage during charging. When the charging voltage of the battery pack reaches the preset threshold, the overcharge protection circuit will immediately cut off the charging current to prevent the battery pack from continuing to charge. At the same time, the overcharge protection circuit also has a delay recovery function, which will automatically restore the charging function when the voltage of the battery pack decreases to the safe range. The overdischarge protection circuit is used to prevent the battery pack from being damaged due to low voltage during discharging. When the discharge voltage of the battery pack reaches the preset threshold, the overdischarge protection circuit will immediately cut off the discharge current to prevent the battery pack from continuing to discharge. At the same time, the overdischarge protection circuit also has a delay recovery function, which will automatically restore the discharge function when the voltage of the battery pack recovers to the safe range after charging. The short circuit protection circuit is used to prevent the battery pack from being damaged or causing a fire in the case of short circuit. When the battery pack is short-circuited, the short circuit protection circuit will immediately cut off the output current of the battery pack to prevent the short circuit current from continuing to flow. At the same time, the short circuit protection circuit also has an automatic recovery function, which will automatically restore the output function of the battery pack when the short circuit fault is eliminated. The temperature protection circuit is used to prevent the battery pack from being damaged in high or low temperature environment. When the temperature of the battery pack exceeds the preset safe range, the temperature protection circuit will immediately cut off the output current or charging current of the battery pack to prevent the battery pack from continuing to work. At the same time, the temperature protection circuit also has temperature monitoring and alarm functions, which will send an alarm signal when the temperature of the battery pack approaches the upper or lower limit of the safe range, reminding the user to pay attention to the temperature state of the battery pack. The power prompt function is another important function in the power module, which can help users to know the remaining power and expected use time of the battery pack in real time, so as to arrange the use plan of the device reasonably. The power prompt function is realized mainly through the power prompt circuit and the control unit.

[0071] Through the power module, the system can ensure normal operation under various environmental conditions and meet user requirements for monitoring data accuracy and real-time performance. The power module can convert the carried electrical energy into the form required by the control circuit (such as stable DC voltage). This conversion process usually involves steps such as voltage reduction, rectification, and filtering to ensure the stability and reliability of the output electrical energy. The power module can reasonably allocate electrical energy according to the needs of the control circuit. This includes providing different voltage levels of electrical energy for different circuit parts and dynamically adjusting the electrical energy output according to the operating state of the system. In order to protect the control circuit and the power module itself from damage, the power module usually has overcurrent and overvoltage protection functions. When the input or output current, voltage exceeds the preset threshold, the power module will automatically cut off the output or reduce the output power to prevent equipment damage or safety accidents such as fire. In order to prolong the service life of the system and reduce energy consumption, the power module usually adopts low-power design.

[0072] Further, in the embodiment, the offshore worker falling into water alarm system is further connected with an external terminal device.

[0073] In this embodiment, the main purpose of connecting the offshore worker falling into the water alarm system with external terminal equipment is to realize the real-time transmission and monitoring of alarm information. When the system detects that an offshore worker has fallen into the water, it can quickly send alarm information to designated terminal equipment so that relevant personnel can immediately take rescue action. The offshore worker falling into the water alarm system connected with external terminal equipment can support multiple types of devices, including but not limited to monitoring center large screens, smartphones or tablets, etc., which are used to monitor the falling into the water alarm information in real time, display the falling into the water position, time and other key information, and facilitate management personnel to respond quickly. Smartphones or tablets can receive falling into the water alarm information and display detailed alarm content and location information by installing corresponding applications. At the same time, the system uses aluminum alloy as the shell and main structural components, which has significant advantages in waterproof performance and stability. Aluminum alloy has good waterproof performance and can effectively resist the erosion of moisture and humidity. Through special waterproof treatment processes such as anodizing, spraying waterproof paint, etc., the waterproof performance of aluminum alloy can be further enhanced. This enables the system to maintain stable operation in water-related wetlands, river and sea environments, avoiding faults or damage caused by water intrusion. The system not only needs to be able to detect falling into the water events in real time and accurately, but also needs to maintain stable operation in harsh water environments to ensure that the fallen person can receive timely rescue. This embodiment proposes an offshore worker falling into the water alarm system and device using aluminum alloy material, which has excellent waterproof performance and stability and exhibits outstanding performance in water-related wetlands, river and sea environments. Aluminum alloy, as a lightweight and high-strength metal material, has been widely used in many fields. In the offshore worker falling into the water alarm system and device, the selection of aluminum alloy material is mainly based on its following advantages:

[0074] The aluminum alloy material itself has good waterproof performance, which can effectively resist the erosion of moisture and humidity. This is mainly due to its tight crystal structure and good surface treatment technology. Through processes such as anodic oxidation and spraying waterproof paint, the waterproof performance of aluminum alloy can be further enhanced, enabling it to operate stably in water-related wetlands, river and sea environments for a long time. Aluminum alloy material has high strength and corrosion resistance, which can maintain the integrity and stability of the structure in harsh environmental conditions. In the water environment, the system may be subjected to external forces such as wind and waves, water flow, and chemical substances such as salt mist and corrosion. Aluminum alloy material can well withstand these external factors to ensure the long-term stable operation of the system. Aluminum alloy material has good processing performance and plasticity, easy to process into various shapes and sizes to meet the design requirements of the offshore worker falling into the water alarm system and device. At the same time, aluminum alloy material also has good welding performance and connection performance, which is convenient for system assembly and maintenance. Aluminum alloy material is an economical and environmentally friendly material. Its price is relatively low, which can reduce the manufacturing cost of the system. At the same time, aluminum alloy material can be recycled, which meets the concept of sustainable development.

[0075] In the offshore worker falling into the water alarm system and device, the realization and optimization of waterproof performance is crucial. The waterproof structure design is the basis of the system's waterproof performance. In the design of the aluminum alloy shell, a sealing structure needs to be adopted to ensure the isolation of the inside and outside of the shell. The sealing structure usually includes sealing pads, sealing rings, sealing glue, etc. These sealing elements need to have good elasticity and corrosion resistance to ensure that they can maintain good sealing performance during long-term use. At the same time, the connection part of the shell needs to use waterproof joints or waterproof sealing rings, etc. to prevent water from entering the system from the connection. Waterproof coating treatment is another important aspect of the system's waterproof performance. On the surface of the aluminum alloy shell, a layer of waterproof paint can be sprayed to improve the waterproof performance of the shell. The waterproof paint needs to have good adhesion and corrosion resistance, which can be maintained on the surface of the shell for a long time to prevent moisture and humidity from eroding. At the same time, waterproof paint also needs to have good air permeability to avoid excessive water vapor in the shell. Waterproof testing and verification is an important means to ensure the waterproof performance of the system. During manufacturing, the aluminum alloy shell needs to be strictly tested for waterproofness to verify whether its waterproof performance meets the design requirements. The test method can use immersion test, spray test, etc. During the test, it needs to be observed whether the shell has leakage phenomenon and whether the internal circuit and elements are damaged. Through testing and verification, potential waterproof problems can be found and repaired in time to ensure the stability and reliability of the system. In the offshore worker falling into the water alarm system and device, stability is a key factor to ensure the long-term stable operation of the system.

[0076] In addition, in order to achieve the above object, the embodiment of the present application also provides a falling alarm device for offshore workers, which comprises all the embodiments of the falling alarm system for offshore workers as described above. Compared with the prior art, the falling alarm device for offshore workers provided by the embodiment of the present application has the same beneficial effects as the falling alarm system for offshore workers provided by the above-mentioned embodiments, and other technical features of the falling alarm device for offshore workers are the same as the features disclosed in the above-mentioned embodiments, which will not be described here.

[0077] The above is only the preferred embodiment of the present application, and does not limit the patent scope of the present application, and any equivalent structure or equivalent process transformation using the content of the specification and drawings of the present application, or direct or indirect application in other related technical fields, are also included in the patent processing scope of the present application.

Claims

1. A man overboard alarm system for personnel working on a sea vessel, characterized in that The system comprises a falling into water detection circuit, a control circuit and an alarm circuit; wherein: The falling into water detection circuit is connected with the control circuit, and is used for detecting the content of water particles and the airflow state in the sensor to determine whether a person falling into water event occurs and outputting a falling into water detection signal to the control circuit; The control circuit is connected with the alarm circuit, and is used for receiving the falling into water detection signal, and when the characteristic value of the falling into water detection signal exceeds a preset value, the alarm circuit gives a voice reminder.

2. The man overboard alarm system of claim 1, wherein, The falling into water alarm system further comprises a signal processing circuit; wherein: The signal processing circuit is further connected with the control circuit, and the signal processing circuit amplifies and filters the collected falling into water signal, and performs analog-to-digital conversion to obtain the falling into water detection signal.

3. The man overboard alarm system of claim 2, wherein, The alarm circuit comprises a voice prompt module; wherein: The voice prompt module is connected with the control circuit, and the voice prompt module is used for remotely sending a voice reminder to the rescuer when the characteristic value of the falling into water detection signal exceeds the preset value.

4. The man overboard alarm system of claim 2, wherein, The alarm circuit comprises a key alarm module; wherein: The key alarm module is connected with the control circuit, The key alarm module is used for providing a key alarm for the person falling into water, and after the key alarm is triggered, a high-frequency flashing signal is emitted around.

5. The personnel overboard alarm system of claim 1, wherein, The falling into water alarm system further comprises a communication module; The communication module is connected with the control circuit, and the communication module is used for remotely transmitting the data signal generated by the control circuit.

6. The man overboard alarm system of claim 5, wherein, The communication module comprises a 5G communication module and a dual-mode positioning module; wherein: The 5G communication module is connected with the control circuit, and the 5G communication module is used for remotely transmitting the data signal of the control circuit; The dual-mode positioning module is connected with the control circuit, and the dual-mode positioning module is used for providing position information to the rescuer through a navigation system.

7. The man overboard alarm system of claim 6, wherein, The falling into water alarm system further comprises a storage module; wherein: The storage module is connected with the control circuit, and the storage module is used for storing the data signal generated by the control circuit.

8. The man overboard alarm system of claim 7, wherein, The falling into water alarm system further comprises a power module; wherein: The power module is connected with the control circuit, and the power module is used for providing power for the control circuit; The power module is further provided with a battery protection board to ensure the safety of the power module, and at the same time, the remaining power and the remaining use time are prompted according to the battery capacity.

9. The man overboard alarm system of claim 8, wherein, The falling into water alarm system is further connected with an external terminal device.

10. A man overboard alarm device for personnel working on a sea, characterized in that, The falling into water alarm device comprises the falling into water alarm system for offshore workers according to any one of claims 1-9.

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