JP2011063375A - Cargo handling carrying system in container terminal and method thereof - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a cargo handling carrying system in a container terminal and a method thereof, which prevent an overturning accident of a trailer, by inexpensively collecting eccentric load information on a container without reducing cargo handling efficiency in the container terminal and informing a trailer driver or a consignor of the information. <P>SOLUTION: This cargo handling carrying system of the container terminal 1 for handling a cargo of the container 5 for marine transportation, includes a measuring device for collecting the eccentric load information on the container 5 by measuring the gravity center position of the container 5, a container terminal management system 4 for receiving the eccentric load information from the measuring device, and an informing device for outputting the eccentric load infirmation to an external part. A cargo handling apparatus arranged in the container terminal 1 has the measuring device. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a container terminal cargo handling and conveyance system for measuring the deviation (eccentric load information) of the center of gravity of container cargo in a container terminal and avoiding a rollover accident of a trailer carrying the container. is there.

  In container terminals (also referred to as container yards) such as harbors and inland areas, containers are handled between container ships and container trailer trucks (hereinafter referred to as trailers or chassis) by quay cranes and portal cranes. FIG. 7 shows an outline of the container terminal 1X.

  Hereinafter, a container cargo handling system in the container terminal 1X will be described. In the container terminal 1X, first, the container 5 mounted on the container ship 2 is unloaded by the quay crane 3. The quay crane 3 loads the container 5 on the yard chassis 6. The yard chassis 6 transports the container 5 to the container placement area 20. In the container placement area 20, the portal crane 7 unloads the container 5 from the yard chassis 6. The container 5 is unloaded from the container ship 2 as described above.

  Here, the container 5 placed in the container placement area 20 is transferred to a container ship mounted on a different container ship 2 or mounted on the foreign chassis 8 and transported to a destination by land. When this container ship is changed, the container 5 is mounted on the container ship 2 by performing the reverse operation of the above-described unloading. In addition, when mounted on the foreign chassis 8, the portal crane 7 in the container placement area 20 performs a cargo handling operation for mounting the container 5 on the foreign chassis 8. The foreign chassis 8 passes through the gate 9 and travels on the road to the destination.

  Here, the yard chassis 6 and the foreign chassis 8 are basically trailers (chassis) having the same structure. For convenience, the trailer used only in the container terminal 1X is referred to as a yard chassis 6, and the trailer traveling on a public road or the like outside the container terminal 1X is referred to as a foreign chassis 8. In general, the yard chassis 6 is managed by a company having or operating the container terminal 1X, and the foreign chassis 8 is generally managed by a transportation company (truck company).

  Further, depending on the container terminal, the container 5 may be loaded on the container placement area 20 using a vehicle type container lifter called a reach stacker in combination with the portal crane 7.

  Alternatively, as another form of container terminal, a straddle carrier having both functions of the portal crane 7 and the yard chassis 6 may be used. The straddle carrier has a container suspension in the portal structure, and can travel between the quay and the container placement area 20 while the container 5 is suspended. In addition, the straddle carrier can lift the container to the height of the second to fourth stages, and can stack the containers 5 in the container placement area 20 and can supply the containers to the foreign chassis 8. Can also be loaded and unloaded.

  In the container terminal 1 </ b> X, cargo handling equipment such as the quay crane 3, the portal crane 7, and the yard chassis 6 is operated by a container terminal management system installed in the management center 21.

  The container terminal management system will be described below. The container terminal management system is configured by combining several systems. For example, there is a yard plan computer system (hereinafter referred to as YPCS) combined with a vessel plan module (VP) and a yard plan module (hereinafter referred to as YP).

  The function of each system will be described below. Yard Plan Computer System (YPCS) manages information about container 5 online and in real time, inventory management of container 5 in container yard 1X, planning of handling schedule (scheduling of cargo handling work), and import / export containers To carry in and out of the container terminal 1X. This YPCS is a central system of the container terminal management system.

  The vessel plan module (VP) holds container information (identification number, destination information, etc.) and position information, etc. in the container ship 2, and creates a schedule for cargo handling work of the container 5 based on this information. Instruct the quay crane 3. Based on this instruction, the crane operator identifies the container 5 to be unloaded and performs a cargo handling operation.

  The yard plan module (YP) holds container information and position information in the container yard, and creates a container placement plan, a container shift plan, etc. based on this information, Instruct.

  By introducing this container terminal management system, the efficiency of the cargo handling work of the container 5 is realized. In other words, at the container terminal, for example, some containers may be transshipped from one container ship to a different container ship, and the container to be transferred is placed near the quay where the destination container ship arrives. There is a need.

  Further, the container transported to the outside of the container terminal by the external chassis needs to be placed near the outlet (gate 9) of the container terminal. The location of the container is instructed by the control system, and the area where the cargo handling operation is performed is distributed to improve the cargo handling efficiency. The above is the outline of the cargo handling system in the container terminal.

  By the way, in recent years, there has been an increase in the number of trailer (external chassis) rollover accidents on public roads. One cause of this is an eccentric load of cargo in the container. That is, since the cargo in the container is offset, the balance of the trailer becomes unstable, and an accident occurs where the trailer rolls over when traveling on a curve or the like. Note that a typical marine shipping container is 2.3 to 4.2 tons in an empty state, and is 30.48 tons maximum depending on the contents when it has cargo. In other words, it can be said that it is particularly heavy in vehicles traveling on public roads.

  As a problem in preventing this accident, first, the inside of the container cannot be seen, so the state of the cargo cannot be known. Only the shipper can open this container. Therefore, the trailer (foreign chassis) driver must carry the container without knowing the internal state of the container.

  In order to solve this problem, a detection device that irradiates a container with radiation and identifies the position of the center of gravity of the container from the intensity distribution of the transmitted radiation (collects eccentric load information) has been proposed (see, for example, Patent Document 1). . With this detection device, a trailer driver who knows the position of the center of gravity of the container can suppress the occurrence of a trailer rollover accident by trying to operate the trailer according to this information.

Further, a method has been proposed in which an accelerometer is installed in the vicinity of the fifth axis (kingpin) of the external chassis and the position of the center of gravity of the container is derived from the measured value of the accelerometer (for example, see Non-Patent Documents 1 and 2). . Here, the 5th axis | shaft is a connection part of a trailer head and a towed part, and the towed part has a twist lock pin for fixing a container.

  However, the above-described detection device that identifies the position of the center of gravity of the container has several problems. First, a detection device that uses radiation requires an operation of installing a container on the detection device, which adds a new work process to the cargo handling operation at the container terminal, and lowers the cargo handling efficiency. Has the problem.

  Secondly, since it is necessary to install a large number of detection devices in a container terminal that handles a large amount of containers, there is a problem that the introduction is costly.

  Thirdly, depending on the place where the detection device is installed, there is a problem that an operator working at the container terminal may be exposed to an explosion.

  Fourthly, in an apparatus using an accelerometer, in order to suppress the occurrence of a trailer rollover accident, it is necessary to install the accelerometer in all the external chassis, and there is a problem that enormous cost is required. .

JP 2007-191173 A

Yutaka Watanabe, “No. 1 Container Trailer Truck Prevents Rollover Accident”, [online], Social Technology Research and Development Center, [Search August 4, 2009], Internet <URL: http://www.ristex.jp /public/focus_no1.html> Yutaka Watanabe, “Preventing container truck rollover due to dangerous imported cargo”, Japan, Science and Technology International Exchange Center Administration Department, issued July 1, 2008, Journal of Science and Technology International Exchange Center, JISTEC REPORT Vol. Pages 68, 3-6

  The present invention has been made in view of the above situation, and its purpose is to collect the eccentric load information of the container in the container terminal without lowering the cargo handling efficiency and at a low cost. It is an object of the present invention to provide a cargo handling system for a container terminal that notifies a trailer driver or shipper and prevents a trailer rollover accident, and a method thereof.

  In order to achieve the above object, a container terminal loading / unloading system according to the present invention includes a container terminal loading / unloading system for unloading a container for sea transportation, wherein the center of gravity of the container is measured to determine the eccentricity of the container. A measuring device that collects load information; a container terminal management system that receives the eccentric load information from the measuring device; and a notification device that outputs the eccentric load information to the outside, and is arranged in the container terminal. The cargo handling equipment includes the measuring device.

  With this configuration, it is possible to collect the eccentric load information of the container in the process of conventional cargo handling work in the container terminal and notify it to the driver of the foreign chassis, etc. Can prevent a rollover accident.

  Further, since eccentric load information can be collected in the container terminal where the containers are accumulated, the eccentric load information can be obtained at a low cost, and a trailer rollover accident can be prevented.

  In the container terminal cargo handling system described above, the measuring device measures the tension of a wire rope that suspends the container of a quay crane or a portal crane, which is one of cargo handling equipment arranged in the container terminal. It is the tension measuring device which performs.

  With this configuration, eccentric load information can be obtained when a container is loaded / unloaded with a quay crane or a portal crane. In particular, new measurement work or the like is unnecessary, and since eccentric load information can be obtained in the same procedure at the same speed as the conventional cargo handling work, the cargo handling efficiency does not decrease.

  In the container terminal cargo handling system described above, the measuring device suspends the container of a quay crane, a portal crane, a straddle carrier, or a reach stacker, which is one of the cargo handling devices arranged in the container terminal. It is a stress measuring device for measuring a tensile stress acting on a hanging object of the hanging tool.

  With this configuration, for example, even when two 20 ft containers are hung by one hanging tool (spreader), each of the 20 ft containers is measured by the stress measuring device installed on each hanging hardware (twist lock pin). Container eccentric load information can be obtained.

  In the container terminal cargo handling system described above, the measuring device is a plurality of load meters installed on a cargo bed of a yard chassis which is one of cargo handling equipment arranged in the container terminal.

  With this configuration, for example, eccentric load information can be obtained at a lower cost than when load meters are installed in all the external chassis that enter and exit the container terminal. In addition, by reporting this eccentric load information to all imported container transporting external chassis before traveling with a notification device installed at the gate, a rollover accident can be prevented.

  In the container terminal cargo handling system described above, the measurement device has an acceleration installed in the vicinity of the fifth axis connecting the trailer head and the towed portion of the yard chassis that is one of the cargo handling devices arranged in the container terminal. It is characterized by being a total.

  With this configuration, by installing an accelerometer in a small number of yard chassis, it is possible to provide eccentric load information to all the external chassis that enter and exit the container terminal. In other words, a rollover accident can be prevented by notifying all of the imported container transport foreign chassis before traveling by the notification device installed at the gate.

  In order to achieve the above object, a container terminal loading / unloading system according to the present invention includes a container terminal loading / unloading system for unloading a container for sea transportation, wherein the center of gravity of the container is measured to determine the eccentricity of the container. A measuring device that collects load information; a container terminal management system that receives the eccentric load information from the measuring device; and a notification device that outputs the eccentric load information to the outside. Or a tension measuring device that measures the tension of a wire rope that suspends the container of a portal crane, and a hanging device that suspends the container of a quay crane, a portal crane, a straddle carrier, or a reach stacker. A plurality of stress measuring devices that measure tensile stress, and a plurality of devices installed on the platform of the yard chassis Load meter, and among accelerometer installed in the fifth near-axis connecting the trailer heads and the pulled part of the yard chassis, characterized in that it constitutes at least two or more measuring devices.

  With this configuration, since the position of the center of gravity of the container is determined from the measurement values obtained by a plurality of measuring devices, highly accurate eccentric load information can be obtained.

  In order to achieve the above object, a container terminal loading / unloading method according to the present invention includes a container terminal loading / unloading method for loading a container for sea transportation, wherein the container center-of-gravity position is measured to determine the eccentricity of the container. An eccentric load information collecting step for collecting load information, a data storage step for transmitting the eccentric load information to a container terminal management system, and the eccentric load information from the container terminal management system, a driver of an external chassis, or a shipper The eccentricity information collecting step is executed during a cargo handling operation by the cargo handling equipment arranged in the container terminal. With this configuration, it is possible to obtain the same effects as those of the aforementioned cargo handling system.

  Furthermore, the notification device may be configured to notify the eccentric load information to at least one of the driver of the foreign chassis, the shipper, the shipping cargo handling company (commonly known as Otsunaka), or the customs broker. With this configuration, when a shipper or the like receives a container whose center of gravity is greatly biased, change the trailer that handles the container to a highly stable trailer such as a 3-axle car or a low-floor car, and cause a rollover accident. Measures can be taken to prevent it.

  In addition, the three-axle vehicle means that the trailer's towed part usually has a two-axis wheel (two pairs of left and right wheels installed in the front and rear) and three axes (a pair of left and right wheels). 3 sets are installed on the front and back) and the stability is high. In addition, the low floor vehicle is configured such that the position of the container of the towed portion on which the container is placed is lower than that of the normal towed portion, and stability is enhanced by lowering the center of gravity of the towed portion.

  According to the container terminal cargo handling system and method therefor according to the present invention, the container eccentric load information can be collected and notified to the driver or the like of the external chassis in the process of conventional cargo handling work in the container terminal. As a result, it is possible to prevent an accidental rollover of the external chassis without reducing the cargo handling efficiency. Further, since eccentric load information can be collected in the container terminal where the containers are accumulated, the eccentric load information can be obtained at a low cost, and a trailer rollover accident can be prevented.

It is the figure which showed the concept of the container terminal cargo handling conveyance system of embodiment which concerns on this invention. It is the figure which showed the external appearance of the portal crane. It is the figure which showed the external appearance of the spreader of a crane. It is the figure which showed one example of the tension measuring device. It is the figure which showed the external appearance of the container trailer truck. It is the figure which showed the concept of the measuring method of a measurement position. It is the figure which showed the outline of the container terminal.

Hereinafter, a cargo handling system for a container terminal according to an embodiment of the present invention will be described with reference to the drawings. FIG. 1 shows a concept of a cargo handling system for a container terminal according to an embodiment of the present invention. The container terminal 1 includes a quay crane 3, a yard chassis 6, and a portal crane 7 as cargo handling equipment. ing. In addition, a container terminal management system 4 is provided to control these cargo handling devices. C1 to C4 indicate the movement of the container 5, and arrows S1 to S6 indicated by broken lines indicate the movement of the eccentric load information.

  This cargo handling system measures the eccentric load of the container 5 while handling the container 5 in the container terminal 1, and synthesizes and collects this eccentric load information with the container information unique to the container. This information is notified to at least the driver of the external chassis 8 to prevent an operation accident of the external chassis 8 (trailer).

  Some specific examples of methods for measuring eccentric loads during cargo handling operations are described below. The first method is a method of measuring an eccentric load with a tension measuring device that measures the tension of a wire rope that suspends the container of the quay crane 3 or the portal crane 7. The eccentric load information obtained by this measurement is merged with the container information including the identification number of the container 5 and transmitted to the container terminal management system 4 (S1, S3).

  The second method measures the tensile stress acting on the twist lock pin (hanging hardware) of the spreader (hanging tool) that suspends the container of the quay crane 3, portal crane 7, straddle carrier, or reach stacker. This is a method of measuring an eccentric load with a stress measuring device. This eccentric load information is transmitted to the container terminal management system 4 (S1, S3).

  The third method is a method of measuring the eccentric load with a plurality of load meters installed on the loading platform of the yard chassis 6. This eccentric load information is transmitted to the container terminal management system 4 (S2).

  The fourth method is a method of measuring the eccentric load with an accelerometer installed in the vicinity of the fifth axis connecting the trailer head of the yard chassis 6 and the towed portion. This eccentric load information is transmitted to the container terminal management system 4 (S2). By the above-described method, the eccentric load can be measured in the flow of the conventional cargo handling work.

  Next, some of the above-described measuring apparatuses will be specifically described. First, the tension measuring apparatus described in the first method will be described.

  FIG. 2 shows a perspective view of the portal crane 7. The portal crane 7 has a trolley 11 for handling the container 5, and the trolley 11 includes a wire rope 13 and a spreader (hanging tool). 12.

  FIG. 3 shows a perspective view of the spreader 12. The spreader 12 is suspended by four pairs of wire ropes 13. The tension measuring device can measure the tension of each of the four pairs of wire ropes 13 and derive the position of the center of gravity of the container 5 from the measured value.

  An example of this tension measuring device is shown in FIG. For example, a tensile force sensor is installed at the fixed end connecting the portal crane 7 and the wire rope 13 to measure the load in the axial direction (arrow direction) of the wire rope 13, and the tension measuring device 18a Good.

  The portal crane 7 is provided with a plurality of sheaves (pulleys) 19 for stretching the wire rope 13. A strain gauge may be attached to the shaft of the sheave 19, and the force obtained from the strain amount may be distributed and measured to the angle component of the rope, and the tension measuring device 18b may be used. Furthermore, if the tension | tensile_strength of the wire rope 13 is measured using both tension | tensile_strength measuring apparatuses 18a and 18b, a highly accurate measured value can be obtained.

  Of course, it is possible to use a tension measuring device other than the above devices, as long as the tension of the plurality of wire ropes 13 extending from the spreader 12 in some form can be measured. Moreover, the quay crane 3 also has the spreader 12 similar to the portal crane 7, and the same tension measuring device can be utilized.

  Next, the stress measuring apparatus described in the second method will be described. As shown in FIG. 3, the spreader 12 has a plurality of twist lock pins (hangers) 14a and 14b on the lower surface. FIG. 3 shows a state where the spreader 12 suspends two 20ft containers 5a, and eight twist lock pins 14a and 14b are fitted into the perforated portions of the 20ft container 5a to suspend the containers. It is lowered.

  Each of the plurality of twist lock pins 14a and 14b is provided with a stress measuring device for measuring the tensile stress, and the position of the center of gravity of the container 5a can be derived from the measured value. Here, when measuring the center of gravity of the 40ft container, the twist lock pins 14a for the 40ft container at the four corners of the spreader 12 are used. When measuring the center of gravity of the two 20ft containers 5a at the same time, the twist lock pin 14a for the 40ft container is used. In addition to the above, measurement is performed using a 20ft container twist lock pin 14b. The stress measuring device may be, for example, a device in which a strain gauge is attached to the twist lock pins 14a and 14b.

  Next, the load meter described in the third method will be described. First, the configuration of the yard chassis 6 shown in FIG. 5 will be described. As shown in FIG. 5, the yard chassis 6 has a trailer head 15 a and a to-be-towed portion 15 b, and the two are connected by a connection mechanism called a fifth shaft 16. This coupling mechanism is also called a kingpin. The towed portion 15 b has a twist lock pin 17 for fixing the container 5. A plurality of load meters can be installed on the upper surface of the towed portion 15b where the load of the container 5 is applied, the load distribution of the container 5 is measured, and the center of gravity of the container 5 can be derived from the measured value. The load meter may be installed on the upper surface of the to-be-towed portion 15b as necessary. For example, the load meter may be installed on the entire surface or may be installed on the four corners.

  Next, the accelerometer described in the fourth method will be described. As shown in FIG. 5, the 5th axis | shaft 16 is a connection part of the trailer head 15a and the towed part 15b. Therefore, when the accelerometer is installed in the vicinity of the fifth shaft 16 and the yard chassis 6 is slightly run, the position of the center of gravity of the container 5 can be derived from the measured value of the accelerometer.

  FIG. 6 shows a state of measurement by the measuring device. FIG. 6 shows a state in which cargo is mounted inside, for example, a 40 ft container 5. The load applied to the four corners of the container 5 is measured. This measurement can be performed with the above-described tension measuring device, stress measuring device, load meter or the like.

  A case will be described in which the results of D1 of 12t, D2 of 8t, D3 of 3t, and D4 of 2t are obtained by this measurement. At this time, in the front-rear direction (x-axis direction) when the container 5 is mounted on the external chassis 8, a load of 5t (D3 + D4) is applied to the front (right side of FIG. 6) and 20t (D1 + D2) is applied to the rear (left side of FIG. 6). Will be. Therefore, the center of gravity G in the x-axis direction is a point obtained by dividing the entire length of the container 5 into 20: 5 from the front.

  Similarly, in the left-right direction (y-axis direction), a load of 10 t (D2 + D4) is applied to the right side (front of FIG. 6) and 15 t (D1 + D3) is applied to the left side (back of FIG. 6). Therefore, the center of gravity G in the y-axis direction is a point obtained by dividing the entire length of the container 5 from the right side at 15:10.

In this way, the center of gravity G in the container 5 is obtained, and the position of the center of gravity G is collected as eccentric load information. At the same time, the conventional container information such as the identification number of the container 5 and the transport destination is also collected and collected. Further, it is necessary to clarify the front-rear direction of the container 5 when handling, and this is also collected as eccentric load information.

  Next, the case where the eccentric load information is obtained by the accelerometer will be described. When the yard chassis 6 travels after the container 5 is mounted on the yard chassis 6, the container 5 vibrates with the travel. By measuring and analyzing this vibration with an accelerometer, the center of gravity of the container 5 can be obtained.

  As shown in FIG. 1, the eccentric load information obtained by the above method is transmitted to the container terminal management system 4 by wireless communication or wireless LAN (S1 to S3) and collected as specific information of the container 5. The container terminal management system 4 is configured to send this eccentric load information to the gate 9. The gate 9 has a notification device for notifying the eccentric load information to the driver of the external chassis 8 by writing or voice.

  In addition, a notification device is also installed in the container terminal management system 4, and the notification device can be configured to notify the external contact information 10 such as a shipper, a shipping cargo handling company (commonly known as Otsunaka), a customs broker, etc. good. At this time, for example, the notification device may use the Internet, FAX, electronic mail, or the like. Based on this notification, the shipper, etc. prepares a special chassis (3-axle vehicle, low floor vehicle), and in some cases, reloads the container 5 in the terminal or related equipment (devanning). it can.

  Since the container terminal loading / unloading control system can collect the eccentric load information of the container at the container terminal, the eccentric load information can be obtained at a low cost and a trailer rollover accident can be prevented.

  In other words, for example, when a load meter or an accelerometer is installed in an external chassis, the truck company installs it with its own investment.

  For this reason, rollover accidents can be prevented at low cost by a cargo handling system that collects eccentric load information at a container terminal where containers are collected and notifies the driver of a trailer, a shipper, and the like.

  Further, since the eccentric load can be measured in the conventional container handling operation flow, the cargo handling efficiency at the container terminal does not decrease.

  In addition, it is desirable to add the eccentric load information to the basic items of the container information so that it can be operated at any container terminal. With this configuration, for example, when loading on a container ship, the container eccentric load information is collected, and this information is transmitted in advance to the container terminal which is the destination of the container ship. However, a special chassis can be prepared in advance. That is, it becomes possible to further improve the container handling efficiency.

1 Container terminal (container yard)
2 Container ship 3 Quay crane 4 Container terminal management system 5 Container 5a 20ft container 6 Yard chassis (trailer)
7 Gate type crane 8 Foreign chassis (trailer)
9 Gate 10 External contact 12 Spreader 13 Wire rope 14a, 14b Twist lock pin 16 5th axis (king pin)
17 Twist Lock Pin 18 Tension Measuring Device 21 Management Center

Claims (7)

In the container terminal cargo handling system that handles containers for marine transportation,
A measuring device for measuring the position of the center of gravity of the container and collecting eccentric load information of the container;
A container terminal management system for receiving the eccentric load information from the measuring device;
A notification device for outputting the eccentric load information to the outside;
A cargo handling system, wherein a cargo handling device arranged in the container terminal has the measuring device.   The measuring device is a tension measuring device that measures the tension of a wire rope that suspends the container of a quay crane or a portal crane, which is one of cargo handling devices arranged in the container terminal. The cargo handling system according to claim 1.   Tensile force that acts on a suspension of a suspender that suspends the container of a quay crane, a portal crane, a straddle carrier, or a reach stacker, which is one of the cargo handling devices disposed in the container terminal. The cargo handling system according to claim 1, wherein the cargo handling system is a stress measuring device that measures stress.   2. The cargo handling system according to claim 1, wherein the measuring device is a plurality of load meters installed on a cargo bed of a yard chassis that is one of cargo handling devices arranged in the container terminal.   The said measuring apparatus is an accelerometer installed in the 5th axis | shaft vicinity which connects a trailer head and a towed part of the yard chassis which is one of the cargo handling equipment arrange | positioned in the said container terminal. The cargo handling system according to 1. In the container terminal cargo handling system that handles containers for marine transportation,
A measuring device for measuring the position of the center of gravity of the container and collecting eccentric load information of the container;
A container terminal management system for receiving the eccentric load information from the measuring device;
A notification device for outputting the eccentric load information to the outside;
A tension measuring device for measuring the tension of a wire rope that suspends the container of a quay crane or a portal crane;
And a stress measuring device for measuring tensile stress acting on a hanger of a hanging tool for hanging the container of a quay crane, a portal crane, a straddle carrier, or a reach stacker,
And a plurality of load cells installed on the platform of the yard chassis,
And a cargo handling system comprising at least two measuring devices among accelerometers installed in the vicinity of the fifth axis connecting the trailer head of the yard chassis and the towed portion. In the cargo handling method for container terminals that handle containers for sea transportation,
An eccentric load information collecting step for measuring the gravity center position of the container and collecting eccentric load information of the container;
A data accumulation step of transmitting the eccentric load information to a container terminal management system;
A notification step of notifying the eccentric load information from the container terminal management system to at least one of a driver of a foreign chassis or a shipper;
The cargo handling and conveying method, wherein the eccentricity information collecting step is executed during a cargo handling operation by a cargo handling device arranged in the container terminal.

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