An adaptive vibration detection system for unmanned vessels

Abstract

This invention discloses an adaptive unmanned surface vessel (USV) vibration detection system. The system includes a vibration detection module, a USV monitoring module, and an upper-level control module. The vibration detection module detects vibration signals from various components in the power system using sensors. The USV monitoring module monitors the USV's speed and shaft rotation speed. The upper-level control system interacts with the vibration detection module's Pulse interface control system based on the received USV speed and rotation speed, initiating the Pulse system via commands and performing adaptive monitoring of the vibration signals. This invention improves time efficiency in USV vibration detection through adaptive detection. The PTP technology of the LAN-XI data acquisition hardware ensures synchronous measurement of samples connected on the same local area network, further improving the accuracy of vibration detection.

Description

Technical Field

[0001] This invention relates to acoustic detection technology, and more particularly to a condition-adaptive unmanned vessel vibration detection system. Background Technology

[0002] Unmanned surface vessels (USVs) are increasingly replacing traditional ships in missions. Stealth is particularly important for USVs during these missions. In the design and construction of USVs, addressing how to automatically control and perform acoustic testing of the entire vessel remains a challenge.

[0003] Traditional ship vibration detection mainly relies on manual analysis and detection. This method is difficult to operate in accordance with the technical requirements of unmanned ships. Compared with traditional ships, unmanned ships are not equipped with life support systems. When performing missions, it is not possible for test personnel to go on the ship with them. In addition, the control and communication systems of unmanned ships are more complex, and the environment in which they perform missions may be more severe. Therefore, there is a need for the ability to quickly and adaptively detect ship vibration based on the ship's operating conditions.

[0004] Currently, acoustic testing of unmanned surface vessels (USVs) is divided into a mooring phase and a navigation phase. The mooring phase primarily tests the mechanical noise of the equipment. During this phase, the USV is docked at the pier with its hatches open, allowing testing personnel to conduct on-board tests. In the navigation phase, the USV needs to dive to a certain depth and operate under different conditions to simulate daily use. At this stage, the USV is not equipped with a life support system, which significantly impacts the testing progress. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to provide an unmanned vessel vibration detection system that is adaptive to operating conditions, addressing the deficiencies in the prior art.

[0006] The technical solution adopted by this invention to solve its technical problem is: a condition-adaptive unmanned vessel vibration detection system.

[0007] The unmanned vessel's power system includes a propeller, a shaft system, and an engine; wherein, the engine is connected to one end of the shaft system, and the other end of the shaft system is connected to the propeller, and the engine drives the propeller to rotate through the shaft system when it is running;

[0008] The unmanned surface vessel (USV) vibration detection system includes: a vibration detection module, an USV monitoring module, and an upper-level control module.

[0009] The vibration detection module is used to detect vibration signals of various components in the power system through sensors;

[0010] The first sensor in the vibration detection module is connected to the propeller, the second sensor is connected to the shaft system, and the third sensor is connected to the engine. The input of the LAN-XI data acquisition hardware in the vibration detection module is connected to the output of the three sensors, and the output of the LAN-XI data acquisition hardware is connected to the input of an embedded industrial computer equipped with the Pulse system and the Pulse interface control system.

[0011] The unmanned vessel monitoring module is used to monitor the speed and rotational speed of the unmanned vessel's shaft system.

[0012] The upper-level control system interacts with the Pulse interface control system of the vibration detection module based on the received unmanned vessel's speed and rotation speed. It initiates the Pulse system via commands and monitors vibration signals; specifically as follows:

[0013] When both the speed and rotation speed are greater than the specified values, the controller of the upper control system interacts with the Pulse interface control system of the vibration detection module through the TCP protocol to start monitoring. When the Pulse interface control system receives the "start monitoring" command from the controller, the Pulse interface control system starts the Pulse system and begins to monitor and record the vibration signals of the unmanned vessel.

[0014] According to the above scheme, the unmanned vessel monitoring module includes a photoelectric speed sensor and a Hall effect speed sensor. The photoelectric speed sensor is connected to the hull and is used to measure the speed of the unmanned vessel. The Hall effect speed sensor is connected to the shaft system and is used to measure the rotational speed of the shaft system.

[0015] According to the above scheme, when the controller of the upper-level control system interacts with the Pulse interface control system of the vibration detection module, the interaction is as follows:

[0016] 1) Periodically check if Pulse is running in the system processes. If not, restart the Pulse system.

[0017] 2) Periodically check for abnormal interruptions; if an interruption occurs, restart the Pulse system.

[0018] 3) Set the number of abnormal restarts. If the restart fails after the number of restarts is reached, send a "vibration detection abnormal" message to the upper-level control system.

[0019] 4) If the monitoring data is abnormal due to network or sensor issues, and continues for a specified period of time, send a "vibration detection abnormality" message to the upper-level control system.

[0020] The beneficial effects of this invention are:

[0021] This invention improves time efficiency in vibration detection of unmanned vessels through adaptive detection. The PTP technology of the LAN-XI data acquisition hardware can ensure synchronous measurement of samples connected on the same local area network, simplifying the wiring of the measurement system and making synchronous measurement of samples over long distances possible, which also improves the accuracy of vibration detection. Attached Figure Description

[0022] The present invention will be further described below with reference to the accompanying drawings and embodiments. In the accompanying drawings:

[0023] Figure 1 This is a schematic diagram of the structure of an embodiment of the present invention. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0025] like Figure 1 As shown, an unmanned surface vessel vibration detection system with adaptive operating conditions is described.

[0026] The unmanned vessel's power system includes a propeller, a shaft system, and an engine; wherein, the engine is connected to one end of the shaft system, and the other end of the shaft system is connected to the propeller, and the engine drives the propeller to rotate through the shaft system when it is running;

[0027] The unmanned surface vessel (USV) vibration detection system includes: a vibration detection module, an USV monitoring module, and an upper-level control module.

[0028] The vibration detection module is used to detect vibration signals of various components in the power system through sensors;

[0029] The vibration detection module includes: three MEMS sensors, a 3160-A-042LAN-XI data acquisition hardware, and an embedded industrial computer.

[0030] The first sensor in the vibration detection module is connected to the propeller, the second sensor in the vibration detection module is connected to the shaft system, and the third sensor in the vibration detection module is connected to the engine.

[0031] The input terminal of the 3160-A-042LAN-XI data acquisition hardware is connected to the output terminals of the three MEMS sensors. The LAN-XI data acquisition hardware is used to collect the vibration signals output by the sensors. The embedded industrial control computer is connected to the LAN-XI data acquisition hardware via a network cable. The embedded industrial control computer is equipped with the Pulse system and the Pulse interface control system. After receiving the instructions from the upper control system, the Pulse system will perform the relevant instruction operations according to the corresponding instructions.

[0032] The unmanned vessel monitoring module is used to monitor the speed and rotational speed of the unmanned vessel's shaft system. The unmanned vessel monitoring module includes a fourth sensor: a photoelectric speed sensor and a fifth sensor: a Hall effect speed sensor. The photoelectric speed sensor is connected to the hull and is used to measure the speed of the unmanned vessel, while the Hall effect speed sensor is connected to the shaft system and is used to measure the rotational speed of the shaft system.

[0033] The upper-level control system interacts with the Pulse interface control system of the vibration detection module based on the received unmanned vessel's speed and rotation speed. It initiates the Pulse system via commands and monitors vibration signals; specifically as follows:

[0034] When both the speed and rotation speed are greater than the specified values, the controller of the upper control system interacts with the Pulse interface control system of the vibration detection module through the TCP protocol to start monitoring. When the Pulse interface control system receives the "start monitoring" command from the controller, the Pulse interface control system starts the Pulse system and begins to monitor and record the vibration signals of the unmanned vessel.

[0035] When the controller of the upper-level control system interacts with the Pulse interface control system of the vibration detection module, the specific details are as follows:

[0036] 1) Periodically check if Pulse is running in the system processes. If not, restart the Pulse system.

[0037] 2) Periodically check for abnormal interruptions; if an interruption occurs, restart the Pulse system.

[0038] 3) Set the number of abnormal restarts. If the restart fails after the number of restarts is reached, send a "vibration detection abnormal" message to the upper-level control system.

[0039] 4) If the monitoring data is abnormal due to network or sensor issues, and continues for a specified period of time, send a "vibration detection abnormality" message to the upper-level control system.

[0040] It should be understood that those skilled in the art can make improvements or modifications based on the above description, and all such improvements and modifications should fall within the protection scope of the appended claims.

Claims

1. A condition-adaptive unmanned surface vessel (USV) vibration detection system, wherein the USV's power system includes a propeller, a shaft system, and an engine; wherein, The engine is connected to one end of the shaft system, and the other end of the shaft system is connected to the propeller. When the engine is running, it drives the propeller to rotate through the shaft system. The unmanned vessel vibration detection system is characterized by comprising: a vibration detection module, an unmanned vessel monitoring module, and an upper-level control module. The vibration detection module is used to detect vibration signals of various components in the power system through sensors; The first sensor in the vibration detection module is connected to the propeller, the second sensor is connected to the shaft system, and the third sensor is connected to the engine. The input of the LAN-XI data acquisition hardware in the vibration detection module is connected to the output of the three sensors, and the output of the LAN-XI data acquisition hardware is connected to the input of an embedded industrial computer equipped with the Pulse system and the Pulse interface control system. The unmanned vessel monitoring module is used to monitor the speed and rotational speed of the unmanned vessel's shafting. The upper-level control module interacts with the Pulse interface control system of the vibration detection module based on the received unmanned vessel's speed and shaft rotation speed. It initiates the Pulse system via commands and performs adaptive monitoring of vibration signals under operating conditions; specifically as follows: When both the speed and rotational speed are greater than the specified values, the controller of the upper control module interacts with the Pulse interface control system of the vibration detection module through the TCP protocol to start monitoring. When the Pulse interface control system receives the "start monitoring" command from the controller, the Pulse interface control system starts the Pulse system and begins to monitor and record the vibration signals of the unmanned vessel. Specifically, when the controller of the upper-level control module interacts with the Pulse interface control system of the vibration detection module, the interaction is as follows: 1) Periodically check if Pulse is running in the system processes. If not, restart the Pulse system. 2) Periodically check for abnormal interruptions; if an interruption occurs, restart the Pulse system. 3) Set the number of abnormal restarts. If the restart fails after the number of restarts is reached, send a "vibration detection abnormal" message to the upper-level control module. 4) If the monitoring data is abnormal due to network or sensor issues, and continues for a specified period of time, send a "vibration detection abnormality" message to the upper-level control system.

2. The condition-adaptive unmanned surface vessel vibration detection system according to claim 1, characterized in that, The unmanned vessel monitoring module includes a photoelectric speed sensor and a Hall effect speed sensor. The photoelectric speed sensor is connected to the hull and is used to measure the speed of the unmanned vessel. The Hall effect speed sensor is connected to the shaft system and is used to measure the rotational speed of the shaft system.

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