Intelligent monitoring system for improving cargo carrying safety of container ship

Abstract

The invention relates to an intelligent monitoring system for improving cargo carrying safety of a container ship, which belongs to the technical field of intelligent monitoring and comprises a bottom lock with a sensor, a twist lock with a sensor, a binding rod with a sensor, a signal collection module and an analysis computer module. The twist lock with the sensor is connected with an adjacent container, the binding rod with the sensor is connected with the binding bridge structure and a high-rise container, and the bottom lock with the sensor, the twist lock with the sensor and the binding rod with the sensor further obtain measurement data of corresponding positions and transmit the measurement data to the analysis computer module through the signal collection module. And the server display module is used for displaying. Container state information is monitored in real time, collected data and a safety value are compared in real time, the future possible sailing state of a ship and response of goods contained in the container can be predicted, the ship route is adjusted or the ship speed is reduced, the sailing direction is adjusted, and sailing safety is improved.

Description

Technical Field

[0001] The present invention belongs to the technical field of intelligent monitoring, and relates to a system and method for ensuring the safety of cargo transportation on a marine container ship, and in particular to an intelligent monitoring system for improving the safety of cargo transportation on a container ship. Background Art

[0002] With the development of large-scale container ships, more and more shipowners are increasing their loading capacity by increasing the number of containers in the cargo hold and on the deck, thereby reducing the average container freight and improving profitability. On the one hand, the number of stacked containers is increasing, and the containers are increasingly affected by external wind and wave loads; on the other hand, the weight of the container stack is also increasing. When the ship is in a rolling state, the container stack will generate a huge inertial force. When the force limit of the securing system is exceeded, a container damage accident will occur. The continuous pursuit of loading capacity by shipowners has brought greater challenges to the safety of container ship cargo transportation. Even if the cargo securing system design meets the requirements of the classification society's specifications, it is difficult to guarantee safety in the face of extreme sea conditions, so container loss often occurs.

[0003] The popularity of electronic products has led to the widespread use of lithium batteries. When loading cargo in containers, if there are inflammable and explosive items such as lithium batteries inside, there is a risk of spontaneous combustion during transportation. During the loading process of containers, cargo owners do not have a good understanding of dangerous goods, resulting in omissions in declarations from time to time, which can lead to misjudgment of the danger of containers and treat dangerous goods containers as regular containers. Due to the characteristics of container ships, there is no good view of all containers from the cab or even the deck. If a single container spontaneously combusts inside, when it can be observed with the naked eye, it is usually too late and the best time to extinguish the fire is missed, causing huge property losses to shipowners and cargo owners.

[0004] In this context, how to ensure the safety of container ship cargo transportation, avoid container damage accidents, and detect fire hazards early has become a topic that the industry continues to study. Summary of the invention

[0005] The purpose of the present invention is to provide an intelligent monitoring system for improving the safety of cargo transportation on container ships, so as to ensure the safety of cargo transportation on container ships, avoid container damage accidents, and discover fire hazards early.

[0006] In order to achieve the above-mentioned purpose, the technical solution of the present invention provides an intelligent monitoring system for improving the safety of cargo transportation in container ships, including a bottom lock with a sensor, a twist lock with a sensor, a lashing rod with a sensor, a signal collection module, and an analysis computer module. The bottom lock with a sensor connects the hull and the bottom container, the twist lock with a sensor connects adjacent containers, and the lashing rod with a sensor connects the lashing bridge structure and high-rise containers. The bottom lock with a sensor, the twist lock with a sensor, and the lashing rod with a sensor also obtain corresponding position measurement data and transmit it to the analysis computer module through the signal collection module, and display it through the server display module.

[0007] Preferably, the bottom lock with sensor and the twist lock with sensor can obtain the stress value between containers at corresponding positions, the acceleration of the containers, and the temperature value at the position; the lashing rod with sensor can obtain the force exerted by the container on the lashing bridge structure in a rolling state.

[0008] Preferably, the bottom lock includes a detachable power supply, a pressure sensor and a temperature sensor; the twist lock includes a detachable power supply, a stress sensor, an acceleration sensor and a temperature sensor; the detachable power supply is built into the flange of the twist lock, and the height direction does not exceed the thickness of the flange; the stress sensor can monitor the pressure on the twist lock flange and the tension on the twist lock cone; the acceleration sensor can monitor the acceleration value of the container; the temperature sensor can monitor the temperature of adjacent containers.

[0009] Preferably, the bottom lock with the sensor can collect the weight change of the upper container stack in a static environment to judge the loading and lifting of the container.

[0010] Preferably, the signal collection module is arranged below a platform of a lashing bridge of the transverse bulkhead between containers, which does not affect the passage space and facilitates the arrangement of cables. Three to four signal collection modules are arranged on a bridge to improve the collection efficiency and accuracy.

[0011] Preferably, the analysis computer module establishes a three-dimensional visualization model of the entire ship's container cargo loading according to the actual packing of the ship, visualizes the bottom lock with sensor, the twist lock with sensor and the lashing rod with sensor in the three-dimensional cargo loading model, and displays the measurement data collected by the sensor.

[0012] Preferably, the analysis computer module can calculate the worst environmental conditions that the container can withstand in the secured state, and generate corresponding stress and acceleration values, which are used as safety values ​​for the current voyage after considering the safety factor.

[0013] Preferably, when the bottom lock with sensor, the twist lock with sensor or the lashing rod with sensor is subjected to stress or acceleration exceeding the safety value, the analysis computer will promptly remind to take necessary actions to reduce the risk. The analysis computer module also generates a temperature field model of the containers on the entire ship based on the collected temperature information, so as to facilitate the timely detection of abnormally high temperature containers and take necessary measures to reduce the risk of fire.

[0014] Preferably, it also includes a navigation warning module, which calculates the response of container cargo under corresponding circumstances according to the real-time navigation dynamics of the ship and the preset route, combined with the sea condition information in the next few hours, and compares it with the safety value provided by the analysis computer module; when the ship is in the current navigation state and is subjected to possible future environmental loads along the current route, it will produce a large roll response, causing stress and acceleration to exceed the safety value, the navigation warning module will issue a warning, reminding to take measures such as reducing speed, adjusting the angle to the wave or even partially adjusting the route, so as to avoid possible container damage accidents.

[0015] Preferably, it also includes an emergency alarm unit, which is arranged in the cab. When the analysis computer module determines that there is a risk of container damage or container fire at present or in the future, an alarm signal will be issued.

[0016] Compared with the prior art, the present invention has the following advantages and effects:

[0017] The present invention monitors the container status information in real time through the container bottom lock, twist lock and lashing rod with sensors; analyzes the accurate loading conditions and lashing and fastening conditions collected by the computer, and obtains the safety values ​​of stress and acceleration after considering the safety factor; compares the collected data with the safety value in real time, and issues an early warning in time when the force or acceleration of the bottom lock, twist lock or lashing bridge exceeds the safety value; the navigation early warning module uses the ship's navigation information and, based on the predicted environmental information, predicts the possible future navigation status of the ship and the response of the loaded container cargo, and issues an early warning in time if there is a risk of container damage, adjusts the route or reduces the speed, adjusts the navigation direction, etc., to improve navigation safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a flow chart of an intelligent monitoring system for improving the safety of cargo transportation on container ships of the present invention;

[0019] Figure 2 It is a flow chart of the safety forecast of the monitoring system of the present invention under future sea conditions;

[0020] Figure 3 This is a schematic diagram of the packing quantity confirmation principle of the present invention;

[0021] Figure 4 This is a typical transverse bulkhead arrangement diagram of the present invention. Figure 1;

[0022] Figure 5 This is a typical transverse bulkhead arrangement diagram of the present invention. Figure 2 ;

[0023] Figure 6 It is a schematic diagram of the whole ship arrangement of the present invention;

[0024] Figure 7 It is a schematic diagram of a container bottom lock and a twist lock with a sensor of the present invention;

[0025] Figure 8 It is a schematic diagram of a container lashing rod with a sensor according to the present invention.

[0026] Figure numerals: 11. Bottom lock with sensor; 111. Flange one; 112. Power supply one; 113. Pressure sensor; 114. Stress sensor one; 115. Temperature sensor one; 12. Twist lock with sensor; 121. Flange two; 122. Power supply two; 123. Stress sensor two; 124. Acceleration sensor; 125. Temperature sensor two; 13. Binding rod with sensor; 131. Power supply three; 132. Stress sensor three; 21. Signal collection module; 31. Analysis computer module; 32. Server display module; 41. Navigation warning module; 42. Emergency alarm unit. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0028] The embodiment of the present invention discloses an intelligent monitoring system for improving the safety of cargo transportation in container ships, which includes a bottom lock 11 with a sensor, a twist lock 12 with a sensor, a lashing rod 13 with a sensor, a signal collection module 21, an analysis computer module 31 and a navigation warning module 41. The bottom lock 11 with a sensor and the twist lock 12 with a sensor, the bottom lock 11 with a sensor is used to fix the bottom container to the hull, and the twist lock 12 with a sensor is used to fix the containers; the lashing rod 13 with a sensor is used to fasten the high-level containers to the lashing bridge structure, such as Figure 4 The bottom lock 11 with sensor and the twist lock 12 with sensor can obtain the stress value between containers at corresponding positions, the acceleration of the containers, and the temperature value at the position; the lashing rod 13 with sensor can obtain the force of the container on the lashing rod structure in the rolling state.

[0029] The analysis computer module 31 establishes a three-dimensional visualization model of the cargo loading of the entire ship container according to the actual packing of the ship, visualizes the bottom lock 11 with sensors, the twist lock 12 with sensors and the lashing rod 13 with sensors in the cargo loading three-dimensional model, and displays the measurement data collected by the sensor in real time. The analysis computer module 31 can obtain accurate loading conditions and lashing and fastening conditions through the bottom lock 11 with sensors, the twist lock 12 with sensors and the lashing rod 13 with sensors, calculate the worst environmental conditions that the container can withstand under the fastening state, and generate corresponding stress and acceleration values, which are used as the safety value of this voyage after considering the safety factor. When the bottom lock 11 with sensors, the twist lock 12 with sensors or the lashing rod 13 with sensors generate stress or acceleration exceeding the safety value, the analysis computer module 31 will promptly remind the captain to take necessary actions to reduce the risk. The analysis computer module 31 can also generate a temperature field model of the entire ship container based on the collected temperature information, so that the captain can find abnormally high temperature containers in time and take necessary measures to reduce the risk of fire. The above information is visualized on the whole ship through the server display module 32. The status information of each container and the safety margin information of stress and acceleration are clearly displayed, which is convenient for the captain to analyze and judge.

[0030] The navigation warning module 41 predicts the future container ship cargo response according to the preset route of this voyage, as well as the environmental information and the ship's navigation information, calculates the container cargo response under the corresponding situation, and compares it with the safety value provided by the analysis computer module 31. When the ship is in the current navigation state, it will produce a large roll response along the current route after being subjected to the possible future environmental load, causing the stress and acceleration to exceed the safety value, the navigation warning module 41 will issue a warning to remind the captain to take measures such as reducing speed, adjusting the angle of the wave or even partially adjusting the route to avoid possible container damage accidents. When the data collected by the bottom lock 11 with sensor, the twist lock 12 with sensor and the lashing rod 13 with sensor exceeds the safety value, the analysis computer module 31 sends an audible and visual alarm signal through the emergency alarm unit 42. If there is a risk of container damage due to the failure of fastening, the navigation warning module 41 will issue a warning to the crew through the server display module 32, reminding the captain to adjust the route, reduce the speed or adjust the angle of the wave to improve the safety of container ship cargo transportation.

[0031] The bottom lock 11 with sensors and the twist lock 12 with sensors, the bottom lock 11 with sensors is used to fix the bottom container to the hull, and the twist lock 12 with sensors is used to connect containers. The bottom lock 11 with sensors includes a detachable power supply 112, a pressure sensor 113, a stress sensor 114 and a temperature sensor 115; the twist lock 12 with sensors includes a detachable power supply 122, a stress sensor 114, an acceleration sensor 124 and a temperature sensor 125. The bottom lock 11 with sensors can obtain the pressure of the container stacking on the large hatch cover, the stress when the container is separated from the large hatch cover, and the temperature of the corner of the container in contact; the twist lock 12 with sensors can obtain the stress and acceleration when the containers are separated from each other, and the temperature of the corner of the container in contact.

[0032] The bottom lock 11 with sensor has a flange 111 that expands toward one side of the container. A detachable power source 112 is built into the flange 111, and its height does not exceed the flange surface to prevent it from being damaged by the up and down squeezing of the container. A pressure sensor 113 is arranged on the inner upper surface of the flange 111 where it fits the corner of the container to obtain the weight information of the entire container stack. A stress sensor 114 is arranged in the middle of the cone of the flange 111 to obtain the force on the twist lock during navigation. A temperature sensor 115 is also arranged on the inner side of the flange 111 to obtain the temperature information of the container in contact. The bottom lock 11 with sensor collects the weight changes of the upper container stack in a static environment through the pressure sensor 113 to determine the loading or lifting status of the container. The principle is as follows: Figure 3 shown.

[0033] The twist lock 12 with sensor has a flange 121 that expands toward one side of the container. A detachable power supply 122 is built into the flange 121, and its height does not exceed the flange surface to prevent it from being damaged by the up and down squeezing of the container. A stress sensor 123 is arranged in the middle of the cone of the flange 121. An acceleration sensor 124 and a temperature sensor 125 are arranged in sequence inside the flange 121.

[0034] The signal collection module 21 is arranged on the hatch coaming below the first platform of each transverse bulkhead lashing bridge, and is used to receive the stress values, acceleration and temperature values ​​measured by all twist locks at the corresponding positions, which does not affect the channel space and is easy to arrange cables. The data generated by the bottom lock 11 with sensor, the twist lock 12 with sensor and the lashing rod 13 with sensor will be collected by the signal collection module 21 and transmitted to the analysis computer module 31.

[0035] Furthermore, the detachable power supply 122 is built into the flange of the twist lock 12 with sensor, and the height direction does not exceed the thickness of the flange, so as to protect the battery from being damaged by the up and down squeezing of the container; the stress sensor 123 is used to monitor the pressure on the twist lock flange and the tension on the twist lock cone; the acceleration sensor 124 is used to monitor the acceleration value of the container; the temperature sensor 125 is used to monitor the temperature of the adjacent container. The bottom lock 11 with sensor collects the weight change of the upper container stack in a static state to judge the loading and lifting of the container.

[0036] The lashing rod 13 with sensors includes a detachable power supply 3 131 and a stress sensor 3 132 located below the head.

[0037] The signal collection module 21 is arranged below the first platform of the lashing bridge between containers, and is used to collect monitoring information of all sensor-carrying bottom locks 11, sensor-carrying twist locks 12 and sensor-carrying lashing rods 13 on both sides of the lashing rods 13 with sensors, such as Figure 4 Usually, three to four signal collection modules 21 are arranged on a bridge to improve collection efficiency and accuracy.

[0038] It also includes a server display module 32, which is arranged in the ship's cab and is used to display the real-time measurement data transmitted by the signal collection module 21, the historical data of the voyage, and the calculation results of the analysis computer and early warning information.

[0039] It also includes an emergency alarm unit 42, which is arranged in the cab. When the analysis computer determines that there is a risk of container damage or container fire at present or in the future, an alarm signal will be issued.

[0040] The present invention provides an intelligent monitoring method for improving the safety of cargo transportation on container ships, comprising the following steps:

[0041] Step 1: During the container loading and unloading process, the number of stacking layers of the container column is determined by collecting the pressure changes on the bottom lock 11 with the sensor; at the same time, the actual weight and accurate stacking weight distribution of each container are obtained by collecting the changes in the total weight;

[0042] Step 2: The signal collection module 21 scans all the bottom locks 11 with sensors, twist locks 12 with sensors and lashing rods 13 with sensors in front and behind the transverse bulkhead, and presents them on the three-dimensional model of cargo loading on the server display module 32. The force, acceleration and temperature information will be displayed according to the actual stacking state;

[0043] Step 3: During the voyage, the analysis computer module 31 obtains accurate loading conditions and lashing and securing conditions based on the feedback information from the bottom lock 11 with sensor, the twist lock 12 with sensor and the lashing rod 13 with sensor, calculates the worst environmental conditions that the container can withstand in the secured state, generates corresponding stress and acceleration values, and obtains the safety value of this voyage after considering the safety factor.

[0044] Step 4: The analysis computer module 31 compares the collected data with the safety value in real time, and issues a warning in time when the real-time data exceeds the safety value; and issues a warning in time when the container temperature is abnormal;

[0045] Step 5: The navigation warning module 41 determines the stress and acceleration values ​​that may be generated by the container ship cargo according to the ship's navigation dynamics and preset route, based on the future predicted environmental conditions. When there is a risk of exceeding the safety value, it promptly issues a warning and gives navigation advice to the captain to improve the safety of cargo transportation.

[0046] Furthermore, in step 4, the ship's navigation status information can be obtained by connecting the navigation information system to an intelligent monitoring system for improving the safety of container ship cargo transportation of the present invention.

[0047] Furthermore, the real-time and forecast information of wind, wave and current of the target route in step 5 can be obtained through transmission of the satellite communication system.

[0048] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An intelligent monitoring system for improving the safety of cargo transportation on container ships, characterized in that: The invention comprises a bottom lock (11) with a sensor, a twist lock (12) with a sensor, a lashing rod (13) with a sensor, a signal collection module (21), and an analysis computer module (31). The bottom lock (11) with a sensor connects the hull and the bottom container, the twist lock (12) with a sensor connects adjacent containers, and the lashing rod (13) with a sensor connects the lashing bridge structure and the high-rise containers. The bottom lock (11) with a sensor, the twist lock (12) with a sensor, and the lashing rod (13) with a sensor also obtain corresponding position measurement data and transmit the data to the analysis computer module (31) through the signal collection module (21), and display the data through the server display module (32).

2. The intelligent monitoring system for improving the safety of cargo transportation in container ships according to claim 1 is characterized in that: The bottom lock (11) with a sensor and the twist lock (12) with a sensor can obtain the stress value between containers at corresponding positions, the acceleration of the containers, and the temperature value at the position; the lashing rod (13) with a sensor can obtain the force exerted by the containers on the lashing bridge structure in a rolling state.

3. The intelligent monitoring system for improving the safety of cargo transportation in container ships according to claim 1, characterized in that: The bottom lock includes a detachable power supply, a pressure sensor and a temperature sensor; the twist lock includes a detachable power supply, a stress sensor, an acceleration sensor and a temperature sensor; the detachable power supply is built into the flange of the twist lock, and the height direction does not exceed the thickness of the flange; the stress sensor can monitor the pressure on the twist lock flange and the tension on the twist lock cone; the acceleration sensor can monitor the acceleration value of the container; the temperature sensor can monitor the temperature of the adjacent container.

4. The intelligent monitoring system for improving the safety of cargo transportation in container ships according to claim 1, characterized in that: The bottom lock (11) with the sensor can collect the weight change of the upper container stack in a static environment to judge the loading and lifting of the container.

5. The intelligent monitoring system for improving the safety of cargo transportation in container ships according to claim 1, characterized in that: The signal collection module (21) is arranged below a platform of a lashing bridge of a transverse bulkhead between containers, which does not affect the passage space and facilitates the arrangement of cables. Three to four signal collection modules (21) are arranged on a bridge to improve collection efficiency and accuracy.

6. The intelligent monitoring system for improving the safety of cargo transportation in container ships according to claim 1, characterized in that: The analysis computer module (31) establishes a three-dimensional visualization model of the cargo loading of containers on the entire ship according to the actual loading of the ship, visualizes the bottom lock (11) with sensors, the twist lock (12) with sensors and the lashing rod (13) with sensors in the three-dimensional cargo loading model, and displays the measurement data collected by the sensors.

7. The intelligent monitoring system for improving the safety of cargo transportation in container ships according to claim 1, characterized in that: The analysis computer module (31) can calculate the worst environmental conditions that the container can withstand in the secured state, and generate corresponding stress and acceleration values, which are used as safety values ​​for the current voyage after considering the safety factor.

8. The intelligent monitoring system for improving the safety of cargo transportation in container ships according to claim 1, characterized in that: When the bottom lock (11) with sensor, the twist lock (12) with sensor or the lashing rod (13) with sensor generates stress or acceleration exceeding the safety value, the analysis computer will promptly remind to take necessary actions to reduce the risk. The analysis computer module (31) also generates a temperature field model of the containers of the entire ship based on the collected temperature information, so as to facilitate timely detection of abnormally high temperature containers and take necessary measures to reduce the risk of fire.

9. The intelligent monitoring system for improving the safety of cargo transportation in container ships according to claim 1, characterized in that: It also includes a navigation warning module (41) which calculates the container cargo response under corresponding circumstances based on the real-time navigation dynamics of the ship and the preset route, combined with the sea condition information in the next few hours, and compares the calculated response with the safety value provided by the analysis computer module (31); when the ship is in the current navigation state and is subjected to possible future environmental loads along the current route, a large roll response will be generated, causing stress and acceleration to exceed the safety value, the navigation warning module (41) will issue a warning to remind the ship to take measures such as reducing speed, adjusting the angle of the wave, or even partially adjusting the route, so as to avoid possible container damage accidents.

10. The intelligent monitoring system for improving the safety of cargo transportation in container ships according to claim 1, characterized in that: It also includes an emergency alarm unit (42) arranged in the cab, which will send out an alarm signal when the analysis computer module (31) determines that there is a risk of container damage or container fire at present or in the future.

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