An online monitoring system for a ship cable tension sensor and a ship

Abstract

The embodiment of the utility model provides an online monitoring system-level ship of a ship cable tension sensor, which is used for real-time monitoring, collection, and transmission hole processing of the tension generated by the ship cable, including: a tension sensor module 1, a Lora collector module 2, a Lora receiver module 3, a host computer module 4, and a communication connection line 5. The Lora collector module 2 collects the data signal of the tension sensor module 1, transmits it to the Lora receiver module 3 through the Lora wireless communication method, and transmits it to the host computer module 4 through the communication connection line 5. The technical solution of the utility model is convenient and fast to use, with high data collection accuracy and high speed, and can realize the monitoring of the tension size of the ship cable when it is working.

Description

Technical Field

[0001] The utility model belongs to the technical field of ship design, and particularly relates to an online monitoring system-level ship of a ship-used cable tension sensor. Background Art

[0002] In engineering fields such as shipbuilding, lifting and mining, some commonly used cable tension monitoring methods include: three-point bending method, which calculates cable tension through force analysis; pressure wheel force-to-electric conversion method, which obtains rope tension through force-to-electric conversion sensor; vibration wave monitoring method, which calculates cable tension by measuring cable lateral vibration and vibration period of vibration wave; series tension sensor method, which directly connects tension sensor in series at the end point of cable to measure cable tension; using pickup to pick up vibration signal to determine natural frequency, and calculate cable tension through formula.

[0003] Marine cables are indispensable devices in the shipbuilding industry. The safety of marine cables is also a top priority in shipbuilding. When the tension of marine cables reaches the maximum load, it will face the serious consequence of cable breakage. Therefore, it is necessary to monitor the tension of marine cables in real time, promptly detect when the tension of the cables exceeds the critical value, and take corresponding protective measures immediately, which plays a great role in protecting the safety of the ship.

[0004] Therefore, how to provide an online monitoring system-level ship of a ship cable tension sensor to monitor the tension of the ship cable when it is working has become a technical problem that needs to be solved urgently. Utility Model Content

[0005] The embodiment of the utility model provides an online monitoring system-level ship of a ship cable tension sensor, which can monitor the tension of the ship cable when it is working.

[0006] In one embodiment of the utility model, an online monitoring system of a ship cable tension sensor is provided, which is used for real-time monitoring, collection, and transmission hole processing of the tension generated by the ship cable, including: a tension sensor module 1, a Lora collector module 2, a Lora receiver module 3, a host computer module 4 and a communication connection line 5.

[0007] The tension sensor module 1 includes: an elastic body 6, a resistance strain gauge 7, a cover plate 8, a connecting bolt 9, a through hole 10, a wiring port 11, a lead wire 12, a pin locking screw 13, a force rod 14 and a pin 15. Through holes 10 are respectively provided in the middle part of the elastic body 6, a lead wire hole is opened between two through holes 10 to the wiring port 11, and the resistance strain gauge 7 is pasted on the inner wall of the two through holes 10; the force railing 14 is connected to the elastic body 6 by a connecting bolt 9, and the pin 15 passes through the through hole of the force rod 14, and the locking screw 13 is inserted into the screw hole of the pin 15, and locked by the locking screw 13.

[0008] The Lora collector module 2 is used to collect data information of the tension sensor module 1 and transmit it to the Lora receiver module 3, including: a sensor wiring port 17, a spare collection wiring port 16, a connection indicator light 18, a power indicator light 19, a spare collection port indicator light 21 and a wireless transceiver antenna 20; the sensor wiring port 17 is connected to the wiring port 11 of the tension sensor module 1, and the connection indicator light 18, the power indicator light 19 and the spare collection port indicator light 21 are used to indicate the connection status, the power status and the collection port status respectively.

[0009] The Lora receiver module 3 is used to convert the data signal corresponding to the Lora collector module 2 into a USB signal through a corresponding protocol, so as to realize the signal reception of the long-distance communication of the data signal transmitter of the Lora collector module 2, and includes: a wiring port 22, a magnetic control switch 23, a wiring port indicator light 26, a magnetic control switch indicator light 24 and a wireless transceiver antenna 25.

[0010] The host computer module 4 is used to collect and process the data collected by the tension sensor 1;

[0011] The Lora collector module 2 collects the data signal of the tension sensor module 1, transmits it to the Lora receiver module 3 through the Lora wireless communication method, and transmits it to the host computer module 4 through the communication connection line 5.

[0012] Furthermore, the material of the elastic body 6 is 42CrMo, semicircular rope grooves are opened at the two end platforms of the elastic body 6, and a trapezoidal hole structure is opened below the two end platforms of the elastic body 6.

[0013] Furthermore, through holes 10 are respectively provided in the middle part of the elastic body 6, and resistance strain gauges 7 are pasted on the inner walls of the two through holes 10, including:

[0014] The two groups of resistance strain gauges 7 pasted on the inner walls of the two through holes 10 are connected in parallel using a four-arm bridge circuit, and the lead 12 is connected to the wiring port 11; wherein the four-arm bridge circuit is welded on the strain gauge through the built-in welding disk.

[0015] Furthermore, the Lora collector module 2 collects data information of the tension sensor module 1 and transmits it to the Lora receiver module 3, including:

[0016] The power switch on the back of the Lora collector module 2 is turned on, and the power indicator light 19 is always on; the sensor wiring port 17 and the wiring port 11 of the tension sensor module 1, the connection indicator light 18 flashes for 3 seconds and then stays on, and the data information of the tension sensor module 1 is collected every 5 seconds. The Lora collector module 2 is powered on once every 5 seconds to power itself and the tension sensor module 1. The Lora collector module 2 has an internal integrated 3.6V battery for power supply, and sends corresponding instructions to the tension sensor module 1 at the same time; when the tension sensor module 1 receives the corresponding instruction, it sends the real-time measurement value of the tension sensor module to the Lora collector 2, and the Lora collector module 2 sends the final data to the host computer module 4 through the wireless transceiver antenna 20 of the Lora receiver module 3.

[0017] Furthermore, when the wireless transceiver antenna 20 fails, the backup acquisition port 16 is connected by wire. After the connection is successful, the backup acquisition port indicator light 21 flashes for 3 seconds and then flashes once every five seconds to indicate that the connection is successful, and data reading and writing transmission is performed directly.

[0018] Furthermore, the monitoring system comprises:

[0019] When the setting needs to be changed, there is a corresponding magnetic switch 23 in the Lora receiver module 3. After the magnet is close to the position of the magnetic switch 23 in the Lora receiver module 3, the host computer module 4 realizes the reading and writing operations of the data in the Lora module receiver module 3.

[0020] The beneficial effects brought by the utility model are as follows:

[0021] It can be seen from the above scheme that the embodiment of the utility model provides an online monitoring system and ship of a ship cable tension sensor, which is used for real-time monitoring, collection, and transmission hole processing of the tension generated by the ship cable, including: a tension sensor module 1, a Lora collector module 2, a Lora receiver module 3, a host computer module 4 and a communication connection line 5. The Lora collector module 2 collects the data signal of the tension sensor module 1, transmits it to the Lora receiver module 3 through the Lora wireless communication method, and transmits it to the host computer module 4 through the communication connection line 5. The technical solution of the utility model is convenient and fast to use, with high data collection accuracy and high speed, and can realize the monitoring of the tension size of the ship cable when it is working. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 A schematic structural diagram showing an online monitoring system for a ship cable tension sensor according to an embodiment of the utility model;

[0023] Figure 2A schematic diagram showing an online monitoring system of a ship cable tension sensor according to an embodiment of the utility model;

[0024] Figure 3 A schematic diagram showing a tension module of an online monitoring system of a ship cable tension sensor according to an embodiment of the utility model;

[0025] Figure 4 A schematic diagram of a Lora collector module of an online monitoring system for a ship cable tension sensor according to an embodiment of the utility model is shown;

[0026] Figure 5 A schematic diagram showing a Lora receiver module of an online monitoring system of a ship cable tension sensor according to an embodiment of the utility model;

[0027] Figure 6 A schematic diagram showing a host computer main interface of an online monitoring system for a ship cable tension sensor according to an embodiment of the utility model;

[0028] In the figure, 1 is the tension sensor module, 2 is the Lora collector module, 3 is the Lora receiver module, 4 is the host computer module, 5 is the communication connection line, 6 is the elastic body, 7 is the resistance strain gauge, 8 is the cover plate, 9 is the connecting bolt 9, 10 is the through hole, 11 is the wiring port, 12 is the lead, 13 is the pin locking screw, 14 is the force rod, 15 is the pin, 16 is the spare collection wiring port, 17 is the sensor wiring port, 18 is the connection indicator light, 19 is the power indicator light, 20 is the Lora collector wireless transceiver antenna, 21 is the spare collection Port indicator light, 22 is the Lora collector wiring port, 23 is the magnetic control switch, 24 is the magnetic control switch indicator light, 25 is the Lora receiver wireless transceiver antenna, 26 is the Lora collector wiring port indicator light, 27 is the toolbar, 28 is the data receiving window, 29 is the parameter setting display bar, 30 is connection, 31 is save, 32 is clear, 33 is setting, 34 is help, 35 is zeroing, 36 is use, 37 is test, 38 is the upper limit alarm threshold, 39 is the lower limit alarm threshold, 40 is the data sending cycle, and 41 is the battery voltage. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical solution and advantages of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0030] The embodiment of the utility model provides an online monitoring system of a ship cable tension sensor, which is used to realize real-time monitoring, collection, transmission and processing of the tension generated by the ship cable, so as to avoid the cable breaking phenomenon caused by the large tension generated by the cable, which affects the safety of the ship. Due to the particularity of the working environment of the ship equipment, the accuracy of the data collected by the equipment, the large range of tension measurement, the overall portability of the equipment and the convenience of the installation process should be considered.

[0031] By modularizing the on-line monitoring system of the marine cable tension sensor, the utility model design is carried out from the tension sensor module, the Lora wireless collector module, the Lora receiver module and the host computer module. For the use occasions such as marine cables, the tension sensor module of the on-line monitoring system of the marine cable tension sensor is designed using the side pressure principle. The tension sensor module can be quickly, conveniently and non-destructively installed on the cable. When the cable is subjected to tension, the cable is tightened, causing the elastic body structure to deform. The equivalent stress of the elastic body is measured by the resistance strain gauge on the elastic body, and then converted into an electrical signal through the bridge of the resistance strain gauge and output to the Lora collector module. The Lora acquisition module uses wireless spread spectrum technology to transmit its signal to the Lora receiver module, and the Lora receiver module transmits it to the host computer module through USB communication. Finally, the data is processed in the host computer module.

[0032] like Figures 1 to 5 Show, Figure 1 A schematic structural diagram showing an online monitoring system for a ship cable tension sensor according to an embodiment of the utility model; Figure 2 A schematic diagram showing an online monitoring system of a ship cable tension sensor according to an embodiment of the utility model; Figure 3 A schematic diagram showing a tension module of an online monitoring system of a ship cable tension sensor according to an embodiment of the utility model; Figure 4 A schematic diagram of a Lora collector module of an online monitoring system for a ship cable tension sensor according to an embodiment of the utility model is shown; Figure 5 A schematic diagram of a Lora receiver module of an online monitoring system for a ship cable tension sensor according to an embodiment of the utility model is shown.

[0033] An online monitoring system for a ship cable tension sensor is used for real-time monitoring, collection, and transmission hole processing of the tension generated by the ship cable, comprising: a tension sensor module 1, a Lora collector module 2, a Lora receiver module 3, a host computer module 4, and a communication connection line 5.

[0034] The tension sensor module 1 includes: an elastic body 6, a resistance strain gauge 7, a cover plate 8, a connecting bolt 9, a through hole 10, a wiring port 11, a lead wire 12, a pin locking screw 13, a force rod 14 and a pin 15. Through holes 10 are respectively provided in the middle part of the elastic body 6, a lead wire hole is opened between two through holes 10 to the wiring port 11, and the resistance strain gauge 7 is pasted on the inner wall of the two through holes 10; the force railing 14 is connected to the elastic body 6 by a connecting bolt 9, and the pin 15 passes through the through hole of the force rod 14, and the locking screw 13 is inserted into the screw hole of the pin 15, and locked by the locking screw 13.

[0035] The Lora collector module 2 is used to collect data information of the tension sensor module 1 and transmit it to the Lora receiver module 3, including: a sensor wiring port 17, a spare collection wiring port 16, a connection indicator light 18, a power indicator light 19, a spare collection port indicator light 21 and a wireless transceiver antenna 20; the sensor wiring port 17 is connected to the wiring port 11 of the tension sensor module 1, and the connection indicator light 18, the power indicator light 19 and the spare collection port indicator light 21 are used to indicate the connection status, the power status and the collection port status respectively.

[0036] The Lora receiver module 3 is used to convert the data signal corresponding to the Lora collector module 2 into a USB signal through a corresponding protocol, so as to realize the signal reception of the long-distance communication of the data signal transmitter of the Lora collector module 2, and includes: a wiring port 22, a magnetic control switch 23, a wiring port indicator light 26, a magnetic control switch indicator light 24 and a wireless transceiver antenna 25.

[0037] The host computer module 4 is used to collect and process the data collected by the tension sensor 1;

[0038] The Lora collector module 2 collects the data signal of the tension sensor module 1, transmits it to the Lora receiver module 3 through the Lora wireless communication method, and transmits it to the host computer module 4 through the communication connection line 5.

[0039] In the embodiment of the utility model, the tension sensor is a large-range tension sensor, which can measure up to 90 tons of tension, has a light structure, and the overall system accuracy should reach 3%; it can be directly applied to the tension sensor of ship cables, has strong corrosion resistance and is suitable for offshore operations; it adopts Lora communication method and wireless spread spectrum technology, has high sensitivity, long transmission distance, low power consumption, high transmission confidentiality, strong anti-interference, and can adapt to -20℃~~+50℃ environment; the sensor has high response speed and sensitivity, and the tension to be measured is accurate and fast; the online monitoring system of the ship cable tension sensor is convenient and quick to disassemble and assemble, and has a stable structure; the real-time cable tension data can be saved to a personal computer, and data processing can be realized on the computer.

[0040] In one embodiment of the utility model, the material of the elastic body 6 is 42CrMo, the two end stands of the elastic body 6 are provided with semicircular rope grooves, and the two end stands of the elastic body 6 are provided with trapezoidal hole structures below.

[0041] In another embodiment of the utility model, through holes 10 are respectively provided in the middle part of the elastic body 6, and resistance strain gauges 7 are pasted on the inner walls of the two through holes 10, including:

[0042] The two groups of resistance strain gauges 7 pasted on the inner walls of the two through holes 10 are connected in parallel using a four-arm bridge circuit, and the lead 12 is connected to the wiring port 11; wherein the four-arm bridge circuit is welded on the strain gauge through the built-in welding disk.

[0043] In another embodiment of the utility model, the Lora collector module 2 collects data information of the tension sensor module 1 and transmits it to the Lora receiver module 3, including:

[0044] The power switch on the back of the Lora collector module 2 is turned on, and the power indicator light 19 is always on; the sensor wiring port 17 and the wiring port 11 of the tension sensor module 1, the connection indicator light 18 flashes for 3 seconds and then stays on, and the data information of the tension sensor module 1 is collected every 5 seconds. The Lora collector module 2 is powered on once every 5 seconds to power itself and the tension sensor module 1. The Lora collector module 2 has an internal integrated 3.6V battery for power supply, and sends corresponding instructions to the tension sensor module 1 at the same time; when the tension sensor module 1 receives the corresponding instruction, it sends the real-time measurement value of the tension sensor module to the Lora collector module 2, and the Lora collector module 2 sends the final data to the host computer module 4 through the wireless transceiver antenna 20 of the Lora receiver module 3.

[0045] In another embodiment of the utility model, when the wireless transceiver antenna 20 fails, the backup acquisition port 16 is connected by wire. After the connection is successful, the backup acquisition port indicator light 21 flashes for 3 seconds and then flashes once every five seconds to indicate that the connection is successful, and data reading and writing transmission is directly performed.

[0046] In another embodiment of the utility model, the monitoring system comprises:

[0047] When the setting needs to be changed, there is a corresponding magnetic switch 23 in the Lora receiver module 3. After the magnet is close to the position of the magnetic switch 23 in the Lora receiver module 3, the host computer module 4 can realize the read and write operation of the module in the Lora receiver.

[0048] like Figure 6 As shown, Figure 6 A schematic diagram of a host computer main interface of an online monitoring system for a ship cable tension sensor according to an embodiment of the utility model is shown.

[0049] Figure 6 In the main soft key interface, there are three areas: tool bar 27, data receiving window 28 and parameter setting display bar 29. The tool bar includes: connect 30, save 31, clear 32, set 33, help 34 and zero 35. The parameter setting display bar 29 can display the upper alarm threshold 38, the lower alarm threshold 39, the data sending cycle 40 and the battery voltage 41.

[0050] The toolbar 27 can realize the following functions:

[0051] (1) Connection 30, "Connect" and "Close" are the same button. After the port number is set, click "Connect" to connect to the device. At the same time, the "Connect" button will become the "Close" button, and the "Save", "Clear", and "Reset" buttons that are in a gray and unclickable state will become clickable.

[0052] (2) Save 31. The received data can be saved locally by clicking the "Save" button. If there is no data, a pop-up window will be displayed to remind you.

[0053] (3) Clear 32. If there is too much data, click the "Clear" button and the data on the use page and the test page will be cleared at the same time.

[0054] (4) Setting 33, the setting includes parameter setting, alarm setting and receiving setting.

[0055] For parameter settings, include:

[0056] Set the port number, the baud rate defaults to 9600. After the collector is connected to the computer via the serial port to USB data cable, use a magnet to move close to the magnetic switch to put the collector into parameter configuration state. During configuration, its indicator light stays on for 30 seconds.

[0057] For alarm settings, include:

[0058] Set the tension upper limit, tension lower limit, upper limit alarm color, lower limit alarm color and pool alarm value. The maximum measuring force of the tension sensor is 900kN, so the tension upper limit is [0, 900kN].

[0059] Once the upper and lower limits of the tension value and the alarm color are set, the corresponding color will be displayed when the set value is exceeded.

[0060] The data transceiver is fully charged at 3.6V. You can set the minimum alarm voltage yourself. When the voltage is lower than the set alarm value, the battery voltage display color in the parameter setting display bar will turn red (the alarm value is set to 1.5V here, and it will display red when it is lower than this value).

[0061] For receiving settings, include:

[0062] Step 1: All devices are connected through wires;

[0063] Step 2: Select the correct port number and connect the device. ;

[0064] Step 3: Move the magnet close to the magnetic switch, triggering the magnetic switch and the LED light turns to a steady state.

[0065] Step 4: Enter an integer value within [0, 250] to modify the receiving period.

[0066] (4) Help 34, providing instructions for using the system and solutions to common problems.

[0067] (5) Clear 35, you can clear all collected data. If clearing is not required, it will display "Current tension value is 0, no clearing is required". If the data is received for the first time and the cable tension is displayed, you need to press the zeroing button to adjust it. The subsequent data will automatically subtract the value received for the first time.

[0068] The data receiving window has two tabs: Use 36 and Test 37. Normal use is transferred to Use Page 36, and the Test Page displays the raw data without compilation. The Use Page window can display the sequence number, cable tension and time.

[0069] Parameter setting display bar 29 , upper alarm threshold 38 , lower alarm threshold 39 , data transmission cycle 40 and battery voltage 41 .

[0070] The technical solution of the utility model is applied to the online monitoring of the tension of the ship cable. It is convenient and quick to use, with high data acquisition accuracy and fast speed, and has achieved good results. The utility model patent can be extended to the industrial application scope of other related rigging.

[0071] The above are preferred implementations of the present utility model. It should be pointed out that, for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present utility model. These improvements and modifications should also be regarded as the protection scope of the present utility model.

Claims

1. An online monitoring system for a ship cable tension sensor, used for real-time monitoring, collection, and transmission hole processing of the tension generated by the ship cable, characterized in that: The monitoring system comprises: a tension sensor module (1), a Lora collector module (2), a Lora receiver module (3), a host computer module (4) and a communication connection line (5); The tension sensor module (1) comprises: an elastic body (6), a resistance strain gauge (7), a cover plate (8), a connecting bolt (9), a through hole (10), a wiring port (11), a lead wire (12), a pin shaft locking screw (13), a force-bearing pull rod (14) and a pin shaft (15); through holes (10) are respectively arranged in the middle part of the elastic body (6), a lead wire hole is opened between two through holes (10) to the wiring port (11), and the resistance strain gauge (7) is pasted on the inner wall of the two through holes (10); the force-bearing pull rod (14) is connected to the elastic body (6) by the connecting bolt (9), and after the pin shaft (15) passes through the through hole of the force-bearing pull rod (14), the pin shaft locking screw (13) is inserted into the screw hole of the pin shaft (15), and is locked by the pin shaft locking screw (13); The Lora collector module (2) is used to collect data information of the tension sensor module (1) and transmit it to the Lora receiver (3), comprising: a sensor wiring port (17), a spare collection wiring port (16), a connection indicator light (18), a power indicator light (19), a spare collection port indicator light (21) and a wireless transceiver antenna (20); the sensor wiring port (17) is connected to the wiring port (11) of the tension sensor module (1), and the connection indicator light (18), the power indicator light (19) and the spare collection port indicator light (21) are used to indicate the connection status, the power status and the collection port status respectively; The Lora receiver module (3) is used to convert the data signal of the corresponding Lora collector module (2) into a USB signal through a corresponding protocol, so as to realize the signal reception of the long-distance communication of the data signal transmitter of the Lora collector module (2), and comprises: a Lora collector connection port (22), a magnetic control switch (23), a connection port indicator light (26), a magnetic control switch indicator light (24) and a Lora receiver wireless transceiver antenna (25); The host computer module (4) is used to collect and process the data collected by the tension sensor module (1); The Lora collector module (2) collects the data signal of the tension sensor module (1), transmits it to the Lora receiver module (3) through the Lora wireless communication method, and transmits it to the host computer module (4) through the communication connection line (5).

2. The online monitoring system of a ship cable tension sensor according to claim 1, characterized in that: The material of the elastic body (6) is 42CrMo, and semicircular rope grooves are opened on the two end platforms of the elastic body (6), and a trapezoidal hole structure is opened below the two end platforms of the elastic body (6).

3. The online monitoring system of a ship cable tension sensor according to claim 1, characterized in that: Through holes (10) are respectively provided in the middle part of the elastic body (6), and the resistance strain gauges (7) are pasted on the inner walls of the two through holes (10), comprising: Two groups of resistance strain gauges (7) pasted on the inner walls of the two through holes (10) are connected in parallel using a four-arm bridge circuit, and the lead wire (12) is connected to the wiring port (11); wherein the four-arm bridge circuit is welded on the strain gauge through a built-in welding disk.

4. The online monitoring system of a ship cable tension sensor according to claim 1, characterized in that: The Lora collector module (2) collects data information from the tension sensor module (1) and transmits it to the Lora receiver module (3), including: The power switch on the back of the Lora collector module (2) is turned on, and the power indicator light (19) is always on; the sensor connection port (17) is connected to the connection port (11) of the tension sensor module (1), and the connection indicator light (18) flashes for 3 seconds and then stays on. The data information of the tension sensor module (1) is collected every 5 seconds. The Lora collector module (2) is powered on every 5 seconds to supply power to itself and the tension sensor module (1). The Lora collector module (2) has an internal integrated 3.6V battery for power supply, and sends corresponding instructions to the tension sensor module (1). When the tension sensor module (1) receives the corresponding instruction, it sends the real-time measurement value of the tension sensor module to the Lora collector module (2), and the Lora collector module (2) sends the final data to the host computer module (4) through the wireless transceiver antenna (20) of the Lora receiver module (3).

5. The online monitoring system of a ship cable tension sensor according to claim 4, characterized in that: When the wireless transceiver antenna (20) fails, the standby acquisition connection port (16) is connected by wire. After the connection is successful, the standby acquisition port indicator light (21) flashes for 3 seconds and then flashes once every five seconds, indicating that the connection is successful, and data reading and writing transmission is directly performed.

6. The online monitoring system of a ship cable tension sensor according to claim 4, characterized in that: The monitoring system comprises: When the setting needs to be changed, the Lora receiver module (3) has a corresponding magnetically controlled switch (23). When a magnet is brought close to the position of the magnetically controlled switch (23) in the Lora receiver module (3), the host computer module (4) performs a read and write operation on the data in the Lora module receiver.

7. A ship, characterized in that: The ship comprises an online monitoring system for a ship cable tension sensor according to any one of claims 1 to 6.

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