Container full truck load status detection method and information processing system

Abstract

The present application relates to a container whole vehicle loading state detection method and a container whole vehicle loading information processing system, the method comprising: a server obtaining electronic fence information; a railway car number recognition device uploading automatically recognized railway car number information to the server; a hoisting device obtaining hoisting information of hoisted containers, the hoisting information comprising weight, unloading positioning, type and number of the hoisted containers; the hoisting device uploading the hoisting information to the server; and the server judging the container loading state in a car according to the electronic fence information, the railway car number information and the hoisting information. The container whole vehicle loading state detection method can automatically detect the matching state of containers and cars, prevent the whole vehicle loading from exceeding the threshold after the containers are loaded, especially prevent the mixed loading of empty and heavy containers, and does not need human intervention, thereby improving the efficiency and flexibility of operation.

Description

Technical Field

[0001] This invention relates to the field of railway freight, specifically to a method for detecting the loading status of container wagons and a container wagon loading information processing system. Background Technology

[0002] Container transport has distinguished itself in the rapidly developing modern logistics sector due to its convenience as a multimodal transport. Railway freight yards typically use dedicated flatcars or open wagons for container transport, with each wagon capable of carrying one 40-foot or two 20-foot containers. According to the current railway regulations on the loading and securing of freight, the load-bearing capacity of train cars carrying containers, the difference in load-bearing capacity between the front and rear bogies, and the lateral deviation of the center of gravity are all limited to certain ranges. While the parameters of wagons carrying containers may vary slightly depending on the model, to ensure railway freight safety, the containers loaded onto train cars must meet the parameter constraints of the current wagon, achieving optimal "box-car matching" after loading. Overloading, uneven loading, or uneven weight distribution within a wagon can endanger railway freight safety. This is especially true when a dedicated flatcar or open wagon carries two 20-foot containers, one empty and one loaded (containing cargo), resulting in a mix of empty and loaded containers (an extreme case of uneven weight distribution). This uneven weight distribution could lead to a major railway freight safety accident, potentially causing train derailment.

[0003] Currently, railway freight yards use reach stackers and gantry cranes for container loading. To prevent overloading, weighing devices are installed to display the container's weight to operators during lifting. To prevent the mixing of empty and loaded containers, weighing control devices are installed, setting lifting weight thresholds to differentiate between them. Before operation, empty and loaded container lifting modes are switched, allowing only containers within the corresponding weight range to be lifted in the appropriate mode. However, frequent mode switching hinders the flexibility of freight yard operations. All existing preventative measures require human intervention and cannot automatically obtain the "container-car matching" status of the entire container loading process. Summary of the Invention

[0004] In view of this, the purpose of this invention is to propose a method for detecting the loading status of a container truck based on satellite positioning and a container truck loading information processing system. This method can automatically detect the "container-truck matching" status, prevent the truck from being overloaded beyond the threshold after the container is loaded, especially the situation of mixed empty and heavy loading, and does not require human intervention, thus improving the efficiency and flexibility of operations.

[0005] In a first aspect, embodiments of the present invention provide a method for detecting the loading status of a container truck, comprising: a server acquiring electronic fence information; a railway freight car number identification device uploading automatically identified railway freight car number information to the server; a hoisting device acquiring hoisting information of the container, the hoisting information including the weight, unloading location, container type, and container number of the hoisted container; the hoisting device uploading the hoisting information to the server; and the server determining the loading status of the container truck based on the electronic fence information, the railway freight car number information, and the hoisting information.

[0006] Optionally, the electronic fence is defined by multiple satellite positioning points, including multiple parallel quadrilateral areas, and the electronic fence covers the transport lanes of the container.

[0007] Optionally, the railway car number identification device uploads automatically identified railway freight car number information to the server: by setting up railway car number identification devices at the entry and exit points of railway freight cars, the car number information of each railway freight car is obtained when the train enters the working track, and the railway freight car number information is uploaded to the server.

[0008] Optionally, the server determines the overall loading status of the container based on the electronic fence information, railway freight car number information, and the hoisting information, including: determining the spatial arrangement of the containers within the electronic fence area based on the electronic fence information and the container's location and type information; determining the loading vehicle and vehicle parameters of each container based on the spatial arrangement of the containers within the electronic fence area and the railway freight car number information; determining the "container-car matching" status of the overall container loading based on the container's weight and the vehicle parameters; and issuing an alarm in response to an overload condition exceeding the current vehicle load, the difference in load capacity between the front and rear bogies, and the lateral deviation of the center of gravity threshold; the alarm information includes the container number, the loading vehicle number, and the overload condition of the overall loading.

[0009] Optionally, the hoisting equipment acquires hoisting information for the container by: acquiring the final loading positioning information of the container when unloading it using a positioning device installed on the hoisting equipment; acquiring the weight information of the four hoisting points of the container when hoisting it using a weighing device installed on the hoisting equipment; acquiring the container type information of the container when hoisting it using a container type device installed on the hoisting equipment; and acquiring the container number information of the container when hoisting it using a container number identification device installed on the hoisting equipment.

[0010] Optionally, after the hoisting equipment uploads the hoisting information to the server, and before the server determines the full loading status of the container based on the electronic fence information, railway freight car number information, and the hoisting information, the container full loading detection method further includes: obtaining the hoisting equipment number; determining whether the positioning device is installed at a predetermined position of the hoisting equipment based on the hoisting equipment number; and performing coordinate transformation on the position of the positioning device in response to the fact that the positioning device is not installed at the predetermined position of the hoisting equipment.

[0011] Optionally, after the hoisting equipment uploads the hoisting information to the server, and before the server determines the full loading status of the container based on the electronic fence information, the railway freight car number information, and the hoisting information, the container full loading detection method further includes: determining whether the container is within the area of ​​the electronic fence based on the electronic fence information and the positioning information, that is, determining whether the container is loaded into the train car of the target track.

[0012] Secondly, embodiments of the present invention provide a container loading information processing system, comprising: a hoisting device configured to acquire and upload hoisting information of a hoisted container, the hoisting information including the weight of the hoisted container and the weight of its four hoisting points, unloading location, container type, and container number; a railway freight car identification device configured to acquire and upload railway freight car number information; and a server configured to acquire electronic fence information and determine the loading status of the container based on the electronic fence information, the railway freight car number information, the weight of the container and the weight of its four hoisting points, unloading location, and container type information.

[0013] Optionally, the lifting equipment includes a telescopic lifting device, which is equipped with a weighing device, a positioning device, and a box-shaped detection device. The weighing device and the positioning device are configured to move synchronously with the telescopic lifting device as it extends and retracts.

[0014] Optionally, the weighing device includes multiple weight sensors, which are respectively disposed at multiple lifting points of the hoisting equipment; the box-type detection device includes a laser rangefinder, which is configured to measure the extension distance of the telescopic lifting device of the hoisting equipment.

[0015] Optionally, the hoisting equipment is also equipped with a container number recognition device, which includes an image acquisition module. The acquisition range of the image acquisition module covers at least three layers of container numbers within the stacking height range.

[0016] The container loading status detection method and container loading information processing system of the present invention can automatically detect the "container-vehicle matching" status when loading a container truck, prevent the container truck from being overloaded beyond the threshold, especially the situation of mixed empty and heavy loading, improve freight safety, and improve the efficiency and flexibility of container loading operations without human intervention. Attached Figure Description

[0017] The above and other objects, features and advantages of the present invention will become clearer from the following description of embodiments of the invention with reference to the accompanying drawings, in which:

[0018] Figure 1 This is a schematic diagram of a method for detecting the loading status of a container truck according to an embodiment of the present invention;

[0019] Figure 2 This is a schematic diagram of an electronic fence according to an embodiment of the present invention;

[0020] Figure 3 This is a schematic diagram of a railway vehicle number identification device according to an embodiment of the present invention;

[0021] Figure 4 This is a schematic diagram of a sub-method according to an embodiment of the present invention;

[0022] Figure 5 This is a schematic diagram of another sub-method of an embodiment of the present invention;

[0023] Figure 6 This is a schematic diagram illustrating the positioning of a container within an electronic fence according to an embodiment of the present invention;

[0024] Figure 7 This is a schematic diagram of another sub-method of an embodiment of the present invention;

[0025] Figure 8 This is a schematic diagram illustrating the arrangement of containers within an electronic fence according to an embodiment of the present invention;

[0026] Figure 9 This is a schematic diagram of another sub-method of an embodiment of the present invention;

[0027] Figure 10 This is a schematic diagram of the container position coordinate transformation according to an embodiment of the present invention;

[0028] Figure 11 This is a schematic diagram of the container truck loading information processing system according to an embodiment of the present invention;

[0029] Figure 12 This is a schematic diagram of the installation position of the positioning device according to an embodiment of the present invention;

[0030] Figure 13This is a schematic diagram of the installation position of the box-type detection device according to an embodiment of the present invention;

[0031] Figure 14 This is a schematic diagram of the lifting point position of a container according to an embodiment of the present invention. Detailed Implementation

[0032] The present invention is described below based on embodiments, but the invention is not limited to these embodiments. In the detailed description of the invention below, certain specific details are described in detail. Those skilled in the art will fully understand the invention even without these details. To avoid obscuring the essence of the invention, well-known methods, processes, flows, elements, and circuits are not described in detail.

[0033] Furthermore, those skilled in the art should understand that the accompanying drawings provided herein are for illustrative purposes only and are not necessarily drawn to scale.

[0034] Unless the context explicitly requires it, words such as "including" or "contains" in the instruction manual should be interpreted as including rather than exclusive or exhaustive; that is, meaning "including but not limited to".

[0035] In the description of this invention, it should be understood that the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Furthermore, in the description of this invention, unless otherwise stated, "a plurality of" means two or more.

[0036] Container transport has distinguished itself in the rapidly developing modern logistics sector due to its convenience as a multimodal transport. In railway freight yards, containers are mostly 40-foot and 20-foot sizes. Trucks transport containers to the yard, where container trains are parked on the tracks. Lifting equipment (such as reach stackers or gantry cranes) loads the containers from the trucks onto transport trains (such as dedicated container flatcars or open wagons), which then transport the containers by rail. Each transport train consists of multiple wagons, each capable of carrying one 40-foot container or two 20-foot containers. The parameters of the container wagons vary slightly depending on the type of wagon. To ensure railway freight safety, the containers loaded onto the train must meet the parameter constraints of the current wagon, achieving optimal "container-car matching" after loading. Overloading, uneven loading, or unbalanced weight distribution within a single wagon can jeopardize railway freight safety. This invention aims to provide a satellite positioning-based method and information processing system for detecting the loading status of container wagons, thereby avoiding the aforementioned problems and improving the safety of railway freight transport. Specifically: as follows... Figure 1The diagram shown is a schematic representation of a method for detecting the loading status of a container truck according to an embodiment of the present invention. The method includes:

[0037] S100, the server obtains electronic fence information;

[0038] S200, the railway car number recognition device uploads automatically recognized railway freight car number information to the server;

[0039] S300, the lifting equipment acquires the lifting information of the container, the lifting information including the weight of the container being lifted, the unloading location, the container type and the container number;

[0040] S400, the hoisting equipment uploads the hoisting information to the server;

[0041] S500, the server determines the loading status of the container based on the electronic fence information, railway freight car number information and the hoisting information.

[0042] like Figure 2 As shown, in S100, the server obtains electronic fence information. The electronic fence consists of multiple satellite positioning points defining a defined area, which may include multiple parallel quadrilateral areas, and the electronic fence covers the container transport lanes. The lanes are located in... Figure 2 The area shown in the shaded region indicates that the tracks may include crisscrossing rails and sleepers. The electronic fence includes quadrilaterals 1-2-3-4, 3-4-5-6, 5-6-7-8, etc., arranged linearly in sequence. Both the tracks and the electronic fence can continue to extend; the portions shown in the figure are for illustrative purposes only.

[0043] Satellite positioning is performed point-by-point along each track of the freight yard using a portable RTK measuring instrument. The server can then obtain the longitude and latitude information of the track. Optionally, positioning points are marked at 2-meter wide locations on both sides of the track's centerline, with the distance between adjacent points on the same side not exceeding 6 meters (not exceeding the length of a 20-foot container). This results in points 1, 3, 5, 7, 9... on one side of the track and points 2, 4, 6, 7, 8... on the other side, forming an electronic fence. For non-straight tracks, the spacing between the positioning points should be appropriately reduced to straighten the curves. The 2-meter and 6-meter values ​​are not intended to limit this embodiment and can be adjusted according to the dimensions of containers and trains to obtain an electronic fence of suitable shape and area in actual operation.

[0044] like Figure 3 As shown in S200, the railway car number identification device uploads automatically identified railway freight car number information to the server. The railway car number identification device consists of a power-on magnet Q, an antenna U, an RF radio frequency device, and a readout host.

[0045] The railway car number identification device is installed at the entry and exit points of railway freight cars. When a train enters or exits the station and passes the activation magnet Q, the activation magnet Q generates a pulse signal, triggering the radio frequency device to enter the car receiving state. When a tagged car passes within the working range of antenna U, antenna U receives the information modulated by the tag. This information is demodulated, amplified, and decoded to obtain the car number information. After the entire train has passed, the RF radio frequency device is turned off according to the delay time, waiting for the next train to pass. The readout host processes the train passing information entering the station to form a train passing message, which is then sent to the server.

[0046] like Figure 4 As shown, in S300, the lifting equipment obtains the lifting information for the container, including:

[0047] S310: The final loading location information of the container is obtained during unloading via a positioning device installed on the hoisting equipment. Optionally, the positioning device may be a high-precision BeiDou positioning device or a GPS positioning device.

[0048] S320, through a weighing device installed on the lifting equipment, acquires the weight information of the container and the weight information of the four lifting points during container lifting; and

[0049] The S330 uses a container type detection device installed on the lifting equipment to obtain container type information during container lifting.

[0050] S340, The container number information is obtained when the container is hoisted by a container number identification device installed on the hoisting equipment.

[0051] The positioning information can be the latitude and longitude of the container, and the container type information includes 20-foot or 40-foot containers. That is, the lifting equipment can be equipped with positioning devices, weighing devices, container type detection devices, and container number identification devices to detect and obtain the corresponding information of the container. Optionally, the positioning information is obtained during unloading to obtain the final loading location of the container.

[0052] In the S400 system, all container lifting information is uploaded and stored on a server. Specifically, in actual operation, the transport train is parked on the track, and the lifting equipment loads containers from the freight yard onto the transport train. During the lifting process, the lifting equipment can obtain container lifting information through positioning devices, weighing devices, container type detection devices, and container number identification devices, and upload this information to the server. There can be one or more lifting equipment units, which can perform loading operations from one or both sides of the track. Each time a container is lifted, the lifting equipment can obtain the corresponding container's lifting information. All containers awaiting loading are loaded onto the transport train according to the freight yard's loading list. Containers can be loaded in any order, and after all containers are loaded, the lifting information for all containers is guaranteed to be uploaded to the server.

[0053] like Figure 5 As shown, after step S400 and before step S500, the method for detecting the loading of a container truck may further include:

[0054] S410, determine whether the container is within the area of ​​the electronic fence based on the electronic fence information and the location information.

[0055] like Figure 6 As shown, in S410, the determination of whether the container is within the area of ​​the electronic fence is based on the electronic fence information and the positioning information. Algorithms such as the coordinate axis method or the ray method can be used for this determination; here, the ray method is used as an example. In the figure, quadrilateral ABCD represents any quadrilateral area of ​​the electronic fence, such as quadrilateral 1-2-3-4 or quadrilateral 3-4-5-6, etc. Point E is the positioning position of the container, which can be obtained by the positioning device on the hoisting equipment. A ray originating from point E cannot intersect any of the vertices of the quadrilateral. If the number of intersections between the ray and the quadrilateral is odd, then the point is within quadrilateral ABCD, meaning the container is loaded onto the train within the electronic fence. Otherwise, the container is not correctly loaded onto the train.

[0056] like Figure 7 As shown, in S500, the server determines the full loading status of the container based on the electronic fence information and the hoisting information, including:

[0057] S510, determine the arrangement of the containers in the area of ​​the electronic fence based on the electronic fence information and the location and type information of the containers;

[0058] S520, based on the spatial arrangement of the containers in the electronic fence area and the railway freight car number information, determine the loading vehicle and vehicle parameters of each container.

[0059] S530, determine the container-vehicle matching status of the container truck based on the weight of the container and the parameters of the vehicle loaded on it.

[0060] S540, in response to the existence of an overload condition exceeding the current vehicle load, the difference in load between the front and rear bogies, and the lateral deviation of the combined center of gravity threshold, an alarm operation is performed. The alarm information of the alarm operation includes the container number, the vehicle number being loaded, and the overload condition of the entire vehicle.

[0061] In the context of overloading and off-center loading, overloading refers to the total weight of the containers carried by the transport vehicle (which may be a flatcar or an open wagon) exceeding its maximum load capacity; off-center loading refers to the lateral deviation of the vehicle's center of gravity (usually in millimeters); and off-center loading refers to the difference in load capacity between the left and right bogies of the transport vehicle (usually in tons).

[0062] The longitudinal eccentric load S and the lateral eccentric load H of a single container are:

[0063]

[0064]

[0065] The distribution of the container's lifting points is as follows: Figure 14 As shown, L is the distance between longitudinal lifting points, W is the distance between transverse lifting points, and m1, m2, m3, and m4 are distributed as lifting points α, β, γ, and δ (reference). Figure 14 The weight value of ).

[0066] When a truck is loaded with two 20-foot containers, the total weight of the two containers is:

[0067] m 总 =m 箱1 +m 箱2

[0068] Where m 箱1 m 箱2 The total weight of each of the two 20-foot containers.

[0069] The loading weight distribution of the two containers is as follows:

[0070]

[0071] Where S1 and S2 are the longitudinal off-center load values ​​of the two 20-foot containers, l1 is the geometric center distance between the two containers after loading, and l2 is the center distance of the bogies of the train car (which can be obtained by looking up the table through the car number information).

[0072] The loading of the two containers is off-center:

[0073]

[0074] H1 and H2 are the lateral off-center load values ​​for the two 20-foot containers, respectively.

[0075] When a truck is loaded with a 40-foot container, the total weight of the loaded truck is:

[0076] m 总 =m 箱3

[0077] Where m 箱3 The total weight of a 40-foot container.

[0078] The loading weight is:

[0079]

[0080] S3 represents the longitudinal off-center load value for a 40-foot container.

[0081] Uneven loading is as follows:

[0082] H 偏载 =H3

[0083] H3 represents the lateral off-center load value for a 40-foot container.

[0084] like Figure 8 As shown, in S510, the arrangement of the containers within the area of ​​the electronic fence is determined based on the electronic fence information and the container's location and type information. For example, in... Figure 8 As can be easily seen, the first train was loaded with two 20-foot containers (commonly known as "two containers per car", indicated by X in the figure), and the second train was loaded with one 40-foot container (indicated by Y in the figure).

[0085] In one alternative implementation, the positioning device can be positioned at a predetermined location on the lifting equipment's spreader, such as a corner. Therefore, the positioning information acquired by the device during container lifting is the latitude and longitude of the container at that corner lifting point. Since the container's length and width are known, the latitude and longitude of each positioning point, along with the coordinates of the outer rectangle of the container containing each positioning point, are transformed to a Cartesian coordinate system. The server can then obtain the spatial position of the container within the electronic fence, and consequently, obtain... Figure 8 The diagram shows the arrangement of all containers within the electronic fence. Of course, in other embodiments, the container arrangement is not limited to this. Figure 8 In the situation, Figure 8 This is for illustrative purposes only.

[0086] In S520, based on the arrangement of the containers within the electronic fence area and the railway freight car number information, the loading car and its parameters for each container are determined. By analyzing the railway freight car numbers and the spatial arrangement order of the containers within the electronic fence area, the car numbers for 40-foot containers and two 20-foot containers per car (i.e., "two containers per car") are determined sequentially. By referring to a table, the maximum load capacity, the load difference between the front and rear bogies, the lateral deviation of the combined center of gravity, and the bogie center distance l2 of the aforementioned train cars can be obtained.

[0087] In S530 and S540, the "container-car matching" status of the entire container loading is determined based on the weight of the container and the vehicle parameters. The total weight, off-center loading, and off-center weight information for each 40-foot container or two 20-foot containers on each car are calculated using the aforementioned formula. According to the current railway "Railway Cargo Loading and Reinforcement Rules," the off-center loading value is generally no more than 100mm, and the off-center weight value is no more than 10t. When the total weight of the containers loaded on a car, the difference in load capacity between the front and rear bogies, and the lateral deviation of the center of gravity are all within the range of the vehicle parameters, the "container-car matching" is satisfied. Otherwise, if there is a missing container or the current vehicle load, the difference in load capacity between the front and rear bogies, or the lateral deviation of the center of gravity thresholds are exceeded, an alarm operation is triggered. The system promptly sends information including the container number, the car number, and the over- or off-center loading status of the entire car to the freight yard for timely adjustments to prevent accidents during transportation.

[0088] like Figure 9 As shown, after S400 and before S500, the detection method for the full loading of the container truck may further include:

[0089] S420, Obtain the number of the hoisting equipment;

[0090] S430, determine whether the positioning device is installed at the predetermined position of the hoisting equipment based on the number of the hoisting equipment;

[0091] S440, in response to the positioning device not being installed at the predetermined position of the hoisting equipment, coordinate transformation is performed on the position of the positioning device.

[0092] The serial number of the lifting equipment and the installation location of the positioning device on the lifting equipment are known information. Normally, the positioning device can be installed on the upper right corner of the lifting equipment's spreader. However, for some lifting equipment, due to mechanical structure, the positioning device cannot be installed on the upper right corner. In such cases, the acquired container positioning information should be converted to coordinates. This is because, for example, when two lifting equipment are used, with one equipment's positioning device installed on the upper right corner of the spreader and the other on the lower right corner, the container positioning information acquired by the two equipment will obviously be the latitude and longitude information of different container positions. This will cause problems when subsequently combining container type information to determine the mixed loading of containers. In this case, coordinate conversion is required for the positioning information acquired by the lifting equipment with different positioning device installation locations. Additionally, in actual operations, when the lifting equipment rotates or multiple lifting equipment operate simultaneously on both sides of the track, coordinate conversion may also be necessary for the same reason. Below, we provide an optional method for coordinate conversion in both cases.

[0093] like Figure 10 As shown, when the hoisting equipment rotates or operates simultaneously on both sides of the track, the distance can be used to determine whether coordinate transformation is needed. The diagram includes the quadrilateral regions ABCD and CDGH of the electronic fence, as well as the positioning point E of the container located within the quadrilateral. If the following conditions are met:

[0094]

[0095] This is considered normal operating condition;

[0096] Otherwise, calculate the coordinates of the central symmetric point E' of point E based on the detected box size. In the coordinate system, the coordinates of the two points are (Lng1, Lat1) and (Lng2, Lat2), and the distance between the two points is:

[0097]

[0098] Where R is the Earth's radius;

[0099] Therefore, let the coordinates of point E be (Lng, Lat) and the coordinates of point E' be (Lng', Lat'), then:

[0100]

[0101]

[0102] Thus, the coordinates of point E' after coordinate transformation are obtained, where θ is the angle between EE' and EF.

[0103] If, due to mechanical structural reasons, the hoisting equipment cannot have a positioning device installed at the upper right corner of the lifting device, then perform a coordinate transformation as described above, and then determine whether the requirements are met. If the distance condition is not met, then the above coordinate transformation is performed again.

[0104] It should be noted that the positioning device can be set at any position on the hoisting equipment. This embodiment is only used as an example where the positioning device is set at the upper right corner of the hoisting equipment.

[0105] The container loading status detection method of this embodiment can automatically detect the "container-vehicle matching" status, prevent the container from being overloaded or unbalanced after loading, improve freight safety, and improve the efficiency and flexibility of container loading operations without human intervention.

[0106] like Figure 11 The diagram shown is a schematic of a container loading information processing system according to an embodiment of the present invention. The system includes a lifting device 10 and a server 90. The lifting device 10 is configured to acquire and upload lifting information of the container, including the weight of the container and the weight of its four lifting points, unloading location, container type, and container number. The server 90 is configured to acquire electronic fence information and railway freight car number information, and to determine the overall loading status of the container based on the electronic fence information, railway freight car number information, and the container's weight, the weight of its four lifting points, its location, and its container type. The lifting device 10 and server 90 in this embodiment may have the same structure as those in the previous embodiments, and the electronic fence and the lifting information can refer to the embodiments. Optionally, the lifting device 10 may be a reach crane or a gantry crane, etc. The lifting device 10 may include a telescopic spreader, which can extend to adapt to the container's size when lifting and retract for easy storage when not lifting.

[0107] like Figure 12 As shown, a positioning device 30 can be installed on the telescopic spreader 20. Optionally, the positioning device 30 is located at the upper right corner of the telescopic spreader 20 and can move synchronously with the telescopic spreader 20 during its extension and retraction to obtain positioning information of the container during lifting. Furthermore, the distances a and b from the top and side edges of the positioning device 30 are the same, thus distinguishing whether the telescopic spreader 20 has rotated horizontally by 180° during lifting or whether it is operating simultaneously on both sides of the track. In other optional implementations, if the positioning device 30 is installed in a different position due to mechanical structure reasons, it should be ensured that the distance between the positioning device 30 and the two side edges of the telescopic spreader 20 is the same.

[0108] like Figure 13As shown, the telescopic spreader 20 may be equipped with a container type detection device 40. This device 40 is used to detect the container type information during lifting, including whether it is a 40-foot container or a 20-foot container. Optionally, the container type detection device 40 may include a laser rangefinder. This laser rangefinder is positioned on the fixed surface of the telescopic spreader 20 and faces the telescopic surface. It is configured to measure the telescopic distance of the spreader 20 to determine the container type information. For example, a 20-foot container has a length of 6058 mm, and the measurement threshold is set to 6058 ± 100 mm. When the measured length is within this threshold range, it is determined to be a 20-foot container. A 40-foot container has a length of 12192 mm, and the measurement threshold can be set to 12192 ± 150 mm.

[0109] in, Figure 12 and Figure 13 Schematic diagrams of the retractable spreader 20 in its unextended and extended states are shown for illustrative purposes, but are not intended to limit this embodiment.

[0110] Optionally, the weighing device 50 may include multiple weight sensors, each corresponding to a different lifting point on the lifting equipment 10. For example, if the four corners of the telescopic spreader 20 are lifting points, it can have four weight sensors, each positioned at one of the four corner lifting points. When the telescopic spreader 20 unloads the container onto the vehicle, the values ​​from the weight sensors change; summing these changes gives the weight of the corresponding container. Figure 10 As shown, the hoisting equipment 10 may also be equipped with a container number recognition device 60. The container number recognition device 60 may include an image acquisition module (e.g., a camera). The acquisition range of the image acquisition module covers at least the container numbers within the height range of three layers of container stacking.

[0111] When the lifting equipment 10 lifts and loads the container onto the train, the container number identification device 60 automatically identifies the container number. This allows for direct tracing to the corresponding vehicle and container number in case of a mismatch between the container and the train, eliminating the need for manual searching and saving time. This embodiment illustrates a container with four lifting points (located at the four corners). In other embodiments, the lifting points are not limited to the four corners; there can be one or more lifting points located anywhere on the container. This does not affect the detection of the container's overall loading status based on the principles of this embodiment. Figure 11As shown, the hoisting equipment 10 can also be equipped with a data processing and display device 70 and a wireless transceiver device 80. The weighing device 50, positioning device 30, container type detection device 40, and container number identification device 60 can all be electrically connected to the data processing and display device 70. The data processing and display device 70 is electrically connected to the wireless transceiver device 80, which can transmit the received container hoisting information to the server 90. Simultaneously, the data processing and display device can also include a display screen (not shown), which can be installed in the cab of the hoisting equipment 10 for human-machine interaction and displaying container hoisting information. Furthermore, the server 90 can retrieve and access stored data and transmit it to the display screen of the data processing and display device 70 via the wireless transceiver device 80 for viewing by the operators.

[0112] The container loading status detection method and container loading information processing system of the present invention can automatically detect the "container-car matching" status when loading a container, prevent overloading of container vehicles exceeding the threshold, especially the situation of mixed empty and heavy loading, improve operational efficiency, and enhance railway freight safety.

[0113] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. For those skilled in the art, the present invention can be modified and varied in various ways. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principle of the present invention should be included within the scope of protection of the present invention.

Claims

1. A method of detecting a container full truck load condition, characterized by, The method comprises: The server acquires electronic fence information of an electronic fence, the electronic fence comprising a plurality of parallely arranged quadrilateral areas composed of satellite positioning points, and the electronic fence covering a transport track of the container, the plurality of parallely arranged quadrilateral areas being composed of satellite positioning points; A railway car number recognition device uploads automatically recognized railway car number information to the server; A lifting device acquires lifting information of a lifted container, the lifting information comprising weight, unloading positioning, box type and box number of the lifted container; The lifting device uploads the lifting information to the server; The server determines the whole vehicle loading state of the container according to the electronic fence information, the railway car number information and the lifting information; The server determines the whole vehicle loading state of the container according to the electronic fence information, the railway car number information and the lifting information, comprising: determining the arrangement of the container in the area of the electronic fence according to the electronic fence information and the positioning and box type information of the container, the box type information comprising different sizes of containers, and the arrangement being single box per vehicle or multiple boxes per vehicle; sequentially determining the loaded vehicle and the vehicle parameters of different sizes of containers according to the spatial arrangement of the container in the area of the electronic fence and the railway car number information; determining the matching state of the whole vehicle loading of the container according to the total weight of the different sizes of containers and the vehicle parameters of the loaded vehicle; in response to the existence of an overloading and unbalanced loading state exceeding the threshold values of the current vehicle load, the difference between the front and rear bogies and the lateral deviation amount of the combined weight center, performing an alarm operation, the alarm information of the alarm operation comprising the container box number, the loaded vehicle number and the overloading and unbalanced loading state of the whole vehicle loading, the overloading in the overloading and unbalanced loading state referring to the total weight of the containers loaded on the transport vehicle exceeding the limit load value, the unbalanced loading referring to the lateral deviation amount of the combined weight center of the transport vehicle, and the unbalanced weight referring to the difference between the left and right bogies of the transport vehicle in the longitudinal direction; in response to the arrangement being multiple boxes per vehicle, the unbalanced weight is obtained by the following formula: The , is the distance between the geometric centers of the two containers after loading, is the distance between the geometric centers of the two containers after loading, is the distance between the geometric centers of the two containers after loading, , is the total weight of each of the two containers; in response to the arrangement being multiple boxes per vehicle, the unbalanced loading is obtained by the following formula: The , are the respective lateral load values of the two containers.

2. The method of claim 1, wherein, The railway car number recognition device is configured to acquire the car number information of the railway car one by one when the railway car enters the operation track.

3. The method of claim 1, wherein, The lifting device acquires lifting information of a lifted container, comprising: acquiring positioning information of the container when the container is unloaded through a positioning device arranged on the lifting device; acquiring weight information of four lifting points of the container when the container is lifted through a weighing device arranged on the lifting device; acquiring box type information of the container when the container is lifted through a box type detection device arranged on the lifting device; acquiring box number information of the container when the container is lifted through a box number recognition device arranged on the lifting device.

4. The method of claim 3, wherein, After the lifting device uploads the lifting information to the server, before the server determines the loading state of the container according to the electronic fence information, the railway car number information and the lifting information, the detection method of the whole vehicle loading of the container further comprises: acquiring the number of the lifting device; According to the number of the hoisting equipment, it is determined whether the positioning device is installed at a predetermined position of the hoisting equipment; In response to the positioning device not being installed at the predetermined position of the hoisting equipment, the position of the positioning device is subjected to coordinate conversion.

5. The method of claim 1, wherein, After the hoisting equipment uploads the hoisting information to the server, before the server determines the loading state of the container according to the electronic fence information and the hoisting information, the detection method for whole vehicle loading of the container further comprises: According to the electronic fence information and the positioning information, it is determined whether the container is in the area of the electronic fence, that is, whether the container is loaded into the train vehicle.

6. A container vehicle loading information processing system characterized by comprising: Comprise: The hoisting equipment is configured to obtain and upload hoisting information of a hoisted container, the hoisting information comprising the weight of the hoisted container, the unloading positioning, the container type and the container number; The railway vehicle number recognition device is configured to obtain and upload railway freight vehicle number information; And The server is configured to obtain electronic fence information of an electronic fence and determine the whole vehicle loading state of the container according to the electronic fence information, the railway freight vehicle number information and the weight, positioning and container type information of the container, the electronic fence comprising a plurality of parallely arranged quadrilateral areas, and the electronic fence covering the transport track of the container, the plurality of parallely arranged quadrilateral areas being composed of satellite positioning points; The server is further configured to: According to the electronic fence information and the positioning and container type information of the container, the arrangement of the container in the area of the electronic fence is determined, the container type information comprising containers of different sizes, and the arrangement being single container per vehicle or multiple containers per vehicle; According to the spatial arrangement of the container in the area of the electronic fence and the railway freight vehicle number information, the vehicle of different sizes of the container and the vehicle parameters of the loaded vehicle are determined in sequence; According to the total weight of the containers of different sizes and the vehicle parameters of the loaded vehicle, the container whole vehicle loading matching state is determined; In response to the existence of an overloading and lateral deviation state exceeding the current vehicle load, the front and rear bogie load difference and the lateral deviation amount threshold of the combined weight center, an alarm operation is performed, and the alarm information of the alarm operation contains the container number, the loaded vehicle number and the overloading and lateral deviation state of the whole vehicle loading, the overloading in the overloading and lateral deviation state refers to the total weight of the containers loaded on the transport vehicle exceeding the limit load value, the lateral deviation refers to the lateral deviation amount of the combined weight center of the transport vehicle, and the lateral load refers to the load difference between the left and right bogies of the transport vehicle in the longitudinal direction; In response to the arrangement being multiple containers per vehicle, the lateral load is obtained by the following formula: The , is the longitudinal load shift value of each of the two containers, is the distance between the geometric centers of the two containers after loading, is the distance between the bogie centers of the train vehicles, , is the total weight of each of the two containers; In response to the arrangement being multiple containers per vehicle, the lateral deviation is obtained by the following formula: The , are the respective lateral load values of the two containers.

7. The system of claim 6, wherein, The hoisting equipment comprises a telescopic hoist, and a weighing device, a positioning device and a container type detection device are arranged on the telescopic hoist, wherein the weighing device and the positioning device are arranged to move synchronously with the telescopic hoist.

8. The system of claim 7, wherein, The weighing device comprises a plurality of weight sensors, and the plurality of weight sensors are respectively arranged at a plurality of hoisting point positions of the hoisting equipment. The box type detection device comprises a laser ranging device arranged to measure the telescopic distance of the telescopic spreader of the hoisting equipment.

9. The system of claim 6, wherein, The hoisting equipment is further provided with a box number recognition device, which comprises an image acquisition module, and the acquisition range of the image acquisition module covers at least the box numbers in the three-layer height range of the containers. The railway car number recognition device is arranged at the position of the railway car vehicle entering and leaving the station yard and is arranged to obtain the car number information of the railway car one by one when the railway car enters the operation track.

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