Rudder hand-leaving detection system for inland river shipping

Abstract

The utility model belongs to the technical field of shipping detection, and aims to provide an inland river shipping rudder hand-leaving detection system, which comprises a rudder pressure detection module, a linear voltage conversion module, a main control module and an alarm module, and is characterized in that the rudder pressure detection module is electrically connected with the main control module through the linear voltage conversion module; the alarm module is electrically connected with the main control module; wherein the rudder pressure detection module is arranged on a rudder and is used for detecting the pressure of the rudder and outputting a pressure detection signal to the linear voltage conversion module; the linear voltage conversion module is used for converting the pressure detection signal into a voltage signal and outputting the voltage signal to the main control module; the main control module is used for judging whether the rudder is in a hand-off state or not according to the voltage signal and outputting an alarm signal to the alarm module when judging that the rudder is in the hand-off state. According to the utility model, the operation state of the rudder can be monitored in the ship operation process, and an alarm system can be triggered in time when a sailor slips out of the hand, so that the sailing safety can be improved.

Description

Technical Field

[0001] This utility model belongs to the field of shipping inspection technology, specifically relating to an inland waterway shipping rudder off-hand detection system. Background Technology

[0002] With the rapid development of inland river port economies, the Yangtze River, as a vital waterway in my country, has seen a continuous increase in ship traffic. Due to the complex navigation environment and the increased fatigue among crew members during nighttime navigation, ship handling monitoring is typically necessary. Traditional ship handling monitoring methods rely mainly on manual observation or remote monitoring, lacking automated monitoring systems for situations where the rudder is no longer under the crew's control. This makes it difficult to automatically identify whether crew members have released their hands from the rudder, hindering timely warnings and posing significant safety hazards. Once a ship loses control due to operational errors, it can lead to collisions and groundings, threatening navigation safety, blocking waterways, and causing severe economic losses. Utility Model Content

[0003] In order to at least partially solve the above-mentioned technical problems, this utility model provides an inland waterway vessel rudder off-hand detection system.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A system for detecting rudder release from handling on inland waterway vessels includes a rudder pressure detection module, a linear voltage conversion module, a main control module, and an alarm module. The rudder pressure detection module is electrically connected to the main control module via the linear voltage conversion module, and the alarm module is also electrically connected to the main control module. The rudder pressure detection module is mounted on the rudder and is used to detect pressure on the rudder and output a pressure detection signal to the linear voltage conversion module. The linear voltage conversion module converts the pressure detection signal into a voltage signal and outputs the voltage signal to the main control module. The main control module determines whether the rudder is in a release state based on the voltage signal and outputs an alarm signal to the alarm module when the rudder is determined to be in a release state. The alarm module executes an alarm action upon receiving the alarm signal.

[0006] In one possible design, the inland waterway vessel rudder release detection system further includes a vessel position detection module, which is electrically connected to the main control module. The vessel position detection module is used to detect the vessel's position and output the vessel's position information to the main control module.

[0007] In one possible design, the ship position detection module adopts the ATGM336H-5N positioning and navigation module.

[0008] In one possible design, the inland waterway vessel rudder removal detection system also includes a wireless communication module, which is electrically connected to the main control module and is used to receive and transmit communication information sent by the main control module.

[0009] In one possible design, the inland waterway vessel rudder off-hand detection system also includes a router, an edge computer, and a user terminal, wherein the edge computer and the user terminal are both connected to the wireless communication module via the router.

[0010] In one possible design, the main control module uses an ESP8266 microcontroller and its peripheral circuitry.

[0011] In one possible design, the rudder pressure detection module employs a flexible resistive thin-film pressure sensor.

[0012] In one possible design, the alarm module uses a passive buzzer.

[0013] The beneficial effects of this invention are mainly reflected in its ability to monitor the rudder's operating status in real time and accurately during ship operation, and to trigger an alarm promptly when the crew takes the rudder off the rudder, thereby improving navigation safety. Specifically, in the implementation of this invention, the rudder pressure detection module is installed on the rudder, which can detect the pressure of the rudder during ship operation and output a pressure detection signal to the linear voltage conversion module. The linear voltage conversion module can convert the pressure detection signal into a voltage signal and output the voltage signal to the main control module, so that the main control module can determine whether the rudder is off the rudder based on the voltage signal. When it determines that the rudder is off the rudder, it outputs an alarm signal to the alarm module to execute the alarm action. Based on this, the present invention, through the coordinated operation of the rudder pressure detection module, the linear voltage conversion module, the main control module and the alarm module, automatically monitors the rudder operation status by monitoring whether the crew member's hands have left the rudder. It can also immediately issue an alarm when it detects that the crew member's hands have left the rudder, so as to remind the crew member to steer properly and drive safely, effectively avoiding safety accidents caused by the crew member's hands leaving the rudder, thereby effectively improving the safety of inland waterway navigation. Attached Figure Description

[0014] Figure 1 This is a control block diagram of the inland waterway vessel rudder off-hand detection system in the embodiment;

[0015] Figure 2 This is the circuit schematic of the main control module in the embodiment. Detailed Implementation

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the present utility model will be briefly introduced below in conjunction with the accompanying drawings and descriptions of the embodiments or the prior art. Obviously, the following description of the structure of the accompanying drawings is only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. It should be noted that the description of these embodiments is used to help understand this utility model, but does not constitute a limitation on this utility model.

[0017] Example:

[0018] like Figure 1 As shown, this embodiment provides an inland waterway vessel rudder off-hand detection system, including a rudder pressure detection module, a linear voltage conversion module, a main control module, and an alarm module. The rudder pressure detection module is electrically connected to the main control module through the linear voltage conversion module, and the alarm module is also electrically connected to the main control module. The rudder pressure detection module is mounted on the rudder and is used to detect the pressure on the rudder and output a pressure detection signal to the linear voltage conversion module. The linear voltage conversion module converts the pressure detection signal into a voltage signal and outputs the voltage signal to the main control module. The main control module determines whether the rudder is off-hand based on the voltage signal and outputs an alarm signal to the alarm module when the rudder is determined to be off-hand. The alarm module executes an alarm action upon receiving the alarm signal.

[0019] Specifically, in this embodiment, the main control module adopts the following... Figure 2 The diagram shows the ESP8266 microcontroller and its peripheral circuitry. It should be noted that the main control module receives data that can be either analog or digital signals, enabling precise monitoring of the rudder's force state. Furthermore, the ESP8266 microcontroller is a high-performance, cost-effective, and highly integrated Wi-Fi + MCU (Micro Control Unit) based on the Tensilica L106 microprocessor. It features built-in Wi-Fi functionality and supports both AT command development (communication with the module via AT commands for control and configuration) and SDK development (control and configuration via API calls). It is suitable for Internet of Things (IoT) device development. The ESP8266 microcontroller can also be controlled via AT command sets and supports communication with various hardware platforms (such as STM32 and Arduino). In this embodiment, the peripheral circuitry of the ESP8266 microcontroller includes a reset switch and a data transmission indicator module, among other peripheral circuits, which are not limited here.

[0020] In this embodiment, the rudder pressure detection module employs a flexible resistive thin-film pressure sensor. In this embodiment, the rudder pressure detection module can be installed on the rudder. During implementation, when the rudder pressure detection module detects a change in rudder pressure, its resistance value changes accordingly. This resistance change is captured by the linear voltage conversion module, which linearly converts the resistance value into a voltage signal and sends it to the main control module. This ensures that the output is proportional to the pressure change, thereby improving the accuracy of the steering wheel removal detection.

[0021] It should be noted that the flexible resistive thin-film pressure sensor is made of a polyester film with excellent mechanical properties, composed of highly conductive materials and nanoscale pressure-sensitive materials. The bottom layer is a flexible film and a conductive layer laminated thereon, while the top layer is a flexible film and a pressure-sensitive material laminated thereon. The two are bonded together with double-sided adhesive, isolating the sensing areas of the upper and lower layers. When its sensing area is compressed, the isolated circuits in the bottom layer become conductive, and the output resistance of the metal port changes accordingly with the pressure, thus enabling rudder pressure detection. The sensor's pressure range (F) is 20g to 6kg, with a trigger force limit of 20g. The pressure action is a light contact press, with a response time of less than 10ms, high accuracy, and good stability. In application, the sensor's resistance signal can be converted into an analog voltage signal or a high / low level supply. The supply voltage is 3.3V to 5V, and the output voltage range is 0 to 3.3V. Using the AO pin (analog output pin, maximum output range 0.1V-3.3V), it is suitable for detecting the presence or absence of pressure, pressure trend changes, or for rough pressure measurement. Furthermore, A can be controlled and adjusted. O_RES The resistor adjusts the range of the output analog voltage value, gain, and sensitivity. Please adjust it to a suitable position yourself. You can use a multimeter to measure the voltage, or connect a microcontroller to the program to read the value and adjust it to your desired or calibrated position. The main control module reads the A value from the rudder pressure detection module. O The pins can be used for applications involving the presence or absence of pressure, pressure trend changes, and rough measurement of pressure values. The range of the output analog voltage value can be adjusted according to the actual application, thereby adjusting the sensitivity of pressure detection.

[0022] In this embodiment, the alarm module uses a passive buzzer. It should be noted that in this embodiment, the alarm module uses a passive buzzer, triggered by a low-level signal. This method has stronger anti-interference capabilities and effectively reduces the risk of false triggering. Furthermore, the passive buzzer does not require continuous power; it only sounds when an alarm is triggered by a low-level signal driving the oscillation circuit. This reduces system power consumption and simplifies control logic, making it particularly suitable for the dual requirements of stability and energy efficiency in inland waterway shipping environments.

[0023] In this embodiment, the inland waterway vessel rudder off-hand detection system further includes a vessel position detection module, which is electrically connected to the main control module. The vessel position detection module is used to detect the vessel position and output the vessel position information to the main control module.

[0024] Specifically, in this embodiment, the ship position detection module adopts the ATGM336H-5N high-performance BDS / GNSS (Global Navigation Satellite System / Beidou Navigation Satellite System) positioning and navigation module. It supports single-system positioning of BDS, GPS (Global Positioning System) or QZSS (Quasi-Zenith Satellite System) satellite navigation systems, with a tracking sensitivity of -162dBm, a positioning accuracy of 2.5 meters (CEP50), and an initial positioning time of 32 seconds. It achieves advantages such as low power consumption (25mA@3.3V) and low cost, making it suitable for vehicle navigation, handheld positioning, and wearable devices.

[0025] During implementation, the main control module can monitor the ship's navigation status in real time through the ship position detection module. By performing secondary parsing on the received GNRMC (a statement format in the GPS NMEA-0183 protocol used to transmit information such as position and speed) data, the data is broken down into the smallest latitude and longitude units.

[0026] In this embodiment, the main control module can obtain data such as ship speed based on the data transmitted by the ship position detection module, and can further combine the ship speed and the rudder off-hand detection results to issue an alarm. For example, if the ship speed is set to >15 m / s and the rudder is detected to have no pressure data and is off-hand, an alarm signal is output to the alarm module to issue an alarm.

[0027] In this embodiment, the inland waterway vessel rudder removal detection system further includes a wireless communication module, which is electrically connected to the main control module and is used to receive and transmit communication information sent by the main control module.

[0028] In this embodiment, the inland waterway vessel rudder off-hand detection system further includes a router, an edge computer, and a user terminal. Both the edge computer and the user terminal are connected to the wireless communication module via the router. The user terminal, such as a mobile phone or computer, is used for on-site debugging and remote monitoring, such as viewing the vessel's latitude and longitude, speed, and whether the crew is steering during navigation through a cloud-based IoT platform system.

[0029] In this embodiment, the main control unit can upload the received and parsed data to the edge computer and user terminal via a local area network to back up the ship's rudder operation data. The main control unit can also map the data from the current system's IP (Internet Protocol Address) to the intranet and use SSH (a network security protocol) technology to remotely log in to view or modify the data information, so as to enable traceability log data query of the ship's rudder operation data in the future.

[0030] It should be noted that in this embodiment, the router is configured to provide network management and data relay functions between the edge computer or user terminal and the main control module. Compared to directly connecting the edge computer and the user terminal through the wireless communication module, the router can achieve more stable network connections, IP address allocation, efficient data packet routing, and concurrent communication of multiple devices. It also enhances network security (such as firewalls and NAT isolation), avoiding the security risks associated with the wireless communication module being directly exposed to the public network. Furthermore, the router can expand wireless coverage, improve signal stability, and support more device access, thereby optimizing overall communication efficiency and reliability.

[0031] This embodiment can be applied to different types of ships, irregular ships, and ships with rudders of different shapes, demonstrating versatility that cannot be achieved with car steering wheel hands-off detection devices. Furthermore, this embodiment is easy to install, highly convenient, and facilitates subsequent data traceability and accountability investigation.

[0032] This embodiment is a system that can monitor the rudder operation status in real time and accurately during ship operation, and trigger an alarm promptly when the crew member takes their hands off the rudder, thereby improving navigation safety. Specifically, in this embodiment, the rudder pressure detection module is installed on the rudder. It can detect the pressure on the rudder during ship operation and output a pressure detection signal to the linear voltage conversion module. The linear voltage conversion module can convert the pressure detection signal into a voltage signal and output the voltage signal to the main control module. The main control module can then determine whether the rudder is in a hands-off state based on the voltage signal. When it determines that the rudder is in a hands-off state, it outputs an alarm signal to the alarm module to execute the alarm action. Based on this, this embodiment, through the coordinated work of the rudder pressure detection module, the linear voltage conversion module, the main control module, and the alarm module, achieves automatic monitoring of the rudder operation status by monitoring whether the crew member's hands are off the rudder. It can immediately issue an alarm when it detects that the crew member's hands are off the rudder to remind the crew member to steer properly and drive safely, effectively avoiding safety accidents caused by the crew member taking their hands off the rudder, thereby effectively improving the safety of inland waterway navigation.

[0033] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the scope of protection of this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the scope of protection of this utility model.

Claims

1. An inland marine vessel rudder off-hand detection system, characterized by: The rudder pressure detection module is arranged on the rudder, the rudder pressure detection module is used for detecting the pressure of the rudder, and a pressure detection signal is output to the linear voltage conversion module; the linear voltage conversion module is used for converting the pressure detection signal into a voltage signal, and the voltage signal is output to the main control module; the main control module is used for judging whether the rudder is in a hand-off state according to the voltage signal, and an alarm signal is output to the alarm module when it is judged that the rudder is in the hand-off state; and the alarm module is used for executing an alarm action when the alarm signal is received.

2. An inland marine shipping rudder off-hand detection system according to claim 1, characterized in that: The inland navigation rudder hand-off detection system further comprises a ship position detection module, the ship position detection module is electrically connected with the main control module, and the ship position detection module is used for detecting the position of the ship and outputting ship position information to the main control module.

3. An inland marine shipping rudder off-hand detection system according to claim 2, characterized in that: The ship position detection module adopts an ATGM336H-5N type positioning navigation module.

4. The system according to claim 1, wherein: The inland navigation rudder hand-off detection system further comprises a wireless communication module, the wireless communication module is electrically connected with the main control module, and the wireless communication module is used for receiving and transmitting communication information sent by the main control module.

5. An inland marine rudder off-hand detection system as defined in claim 4, wherein: The inland navigation rudder hand-off detection system further comprises a router, an edge computer and a user terminal, the edge computer and the user terminal are both in communication connection with the wireless communication module through the router.

6. The system for detecting the release of a rudder of an inland river vessel according to claim 1, wherein: The main control module adopts an ESP8266 type single-chip microcomputer and a peripheral circuit thereof.

7. The system according to claim 1, wherein: The rudder pressure detection module adopts a flexible resistance film pressure sensor.

8. The system for detecting the release of a rudder of an inland river vessel according to claim 1, wherein: The alarm module adopts a passive buzzer.

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