Train positioning and loading system based on video stitching technology

Abstract

The utility model discloses a train positioning and loading system based on video splicing technology, including train, bunker, camera, weighing material position meter, electric unloading gate and electric control system, the bunker is set at train top, the camera is set in train and the bunker middle, weighing material position meter and electric unloading gate all are set in bunker lower part, the camera, weighing material position meter and electric unloading gate are electric connection respectively through control cable and electric control system, the utility model has the beneficial effect that utilizes electric control system to obtain the complete image of carriage through visual identification and video splicing technology, and the real -time monitoring loading capacity is combined with weighing material position meter, and automatic control electric unloading gate start -stop, realizes the fine control of loading weight and volume, and the positioning of train carriage, and the identification of loading volume, finally replaces manual work, realizes the maximization of loading material amount, and the loading efficiency is greatly improved, and the production benefit of enterprise is increased.

Description

Technical Field

[0001] This utility model relates to the field of train positioning and loading technology, specifically to a train positioning and loading system based on video stitching technology. Background Technology

[0002] In industrial production, silos are often used to store and transfer solid materials to ensure the continuity of production. Materials can be transported by train when unloading from silos. Compared with other modes of transportation, train transportation has many advantages such as economy, efficiency and reliability. However, some problems have also arisen in the actual application process.

[0003] The requirements for loading materials into train carriages are quite strict, with both weight and volume not exceeding limits. This necessitates precise control over train loading. Currently, the conventional method is to install a track scale under the tracks to monitor the weight of the materials loaded into the train carriages. However, for economic reasons, usually only one track scale is installed under the first hopper. During loading, subsequent carriages can only be partially loaded based on experience before the train moves to the first hopper to be fully loaded. This significantly reduces the efficiency of train loading.

[0004] Meanwhile, to meet the loading volume requirements, it is also necessary to locate the relative positions of the carriages and the material hoppers, and to monitor the loading status of the carriages. Usually, this is judged manually using video images from cameras below the material hopper. However, the space below the material hopper is generally quite small, with insufficient viewing distance. The cameras can only capture partial images of the carriages, and the positioning of the train carriages and the loading status can only be judged based on experience, which seriously affects accuracy and efficiency.

[0005] The relevant functions can also be achieved using a train quick loading station, but it is more expensive and requires a certain amount of installation space. It is also difficult to modify the existing silo unloading and train loading system.

[0006] Existing technology discloses a method, device, and equipment for controlling the loading and unloading of materials in train carriages, with publication number CN202410739076.X, which uses an overhead crane for loading materials onto the train. However, this technical solution does not combine video stitching technology with the application scenario of parallel unloading of multiple silos, cannot adapt to the transformation needs of existing silo systems, cannot achieve synchronous monitoring of carriage positioning and loading volume through panoramic images, and is difficult to meet the dual precise control of weight and volume during continuous loading of multiple carriages. Furthermore, it cannot simultaneously consider the economic efficiency of transformation and the improvement of loading efficiency. Utility Model Content

[0007] To overcome the problems of low loading efficiency, inaccurate positioning, insufficient control precision of loading weight and volume, and high modification cost of traditional train loading systems, this utility model provides a train positioning and loading system based on video stitching technology.

[0008] The technical solution adopted by this utility model to achieve the above objectives is as follows: it includes a train, a silo, a camera, a weighing level gauge, an electric unloading gate, and an electrical control system. The silo is located above the train, the camera is located between the train and the silo, and the weighing level gauge and the electric unloading gate are both located at the bottom of the silo. The camera, the weighing level gauge, and the electric unloading gate are electrically connected to the electrical control system via control cables.

[0009] Preferably, several hoppers are arranged side by side along the direction of train travel, and several cameras are arranged side by side along the direction of train travel according to the line of sight. The images captured by the cameras include all carriages of the train.

[0010] Preferably, the electronic control system uses several cameras and employs visual recognition and video stitching technology to capture complete images of all train carriages.

[0011] Preferably, the electronic control system monitors the amount of material in each silo in real time through each weighing level gauge.

[0012] Preferably, the electrical control system controls the start and stop of material discharge from the hopper by controlling the switch of the electric unloading gate.

[0013] Preferably, each carriage of the train is equipped with at least two material bins above it, and each carriage and all the material bins above it form an independent loading group. The electrical control system performs weight calculation, gate control and loading uniformity adjustment for each loading group.

[0014] Preferably, the train is equipped with a display screen above the driver's cab on one side. The display screen is electrically connected to the electronic control system via a control cable. The electronic control system displays the train's position status and the opening and closing status of the electric unloading gate in real time through the display screen.

[0015] Preferably, the display screen also displays in real time the remaining material quantity in each hopper, the real-time loading weight of the truck body, and the volume percentage.

[0016] Preferably, the train driver observes the information displayed on the screen and drives the train forward or to a stop according to the production operation procedures.

[0017] The control method for a train positioning and loading system based on video stitching technology includes the following steps: S1. System startup; S2. Use visual recognition and video splicing technology to identify whether there is a train under the silo. If the result is yes, continue to execute S3. If the result is no, repeat S2. S3. Visual recognition and video stitching technology are used to identify the distance between the train's current position and the optimal loading position; S4. Determine whether the train has stopped at the optimal loading position. If the result is yes, continue to execute S5. If the result is no, jump to S13. S5. Control the electric unloading gate to open; S6. Calculate the change in silo weight W0 = W1 - W2, where W1 is the historical value of silo weight and W2 is the current value of silo weight; S7. Update the historical weight value of the hopper W1=W2; S8. Calculate the current value of the load weight of the train car W4 = W3 + W0, where W3 is the historical value of the load weight of the train car. S9. Determine whether the current value W4 of the loading weight of the train car has reached the optimal loading weight. If the result is yes, jump to S11; if the result is no, jump to S10. S10. Use visual recognition and video splicing technology to determine whether the train car has reached the optimal loading volume. If the result is yes, jump to S11; if the result is no, jump to S13. S11. Control the electric unloading gate to close; S12. Update the historical value of the loading weight of the train car to W3=W4; S13. The display screen shows the distance between the train's current position and the optimal loading position, and displays the opening and closing status of the electric unloading gate.

[0018] The beneficial effects of this utility model are that it utilizes an electronic control system to obtain a complete image of the train car through visual recognition and video stitching technology, combined with a weighing level gauge to monitor the loading amount in real time, and automatically controls the opening and stopping of the electric unloading gate to achieve precise control of the loading weight and volume, positioning of the train car, and identification of the loading volume; ultimately replacing manual labor, it maximizes the loading amount while ensuring that the weight and volume of the materials in the train car do not exceed the limits, and significantly improves loading efficiency and increases the production benefits of enterprises. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the train positioning and loading system based on video splicing technology of this utility model; Figure 2 This is a flowchart of the control method for the train positioning and loading system based on video stitching technology of this utility model.

[0020] In the picture: 1. Train; 2. Silo; 3. Camera; 4. Weighing level gauge; 5. Electric unloading gate; 6. Display screen. Detailed Implementation

[0021] It should be noted that, where there is no conflict, the embodiments and features in the embodiments of this utility model can be combined with each other. The present utility model will now be described in detail with reference to the accompanying drawings and embodiments.

[0022] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit this utility model or its application or use. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0023] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to the present invention. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0024] Example 1: As Figure 1 As shown, this embodiment provides a train positioning and loading system based on video stitching technology, including a train 1 and several hoppers 2 arranged side by side above the train 1 along the direction of train 1's operation; Above the train 1 and below the hopper 2, along the direction of train 1, several cameras 3 are set up side by side according to the line of sight. The images captured by all the cameras 3 can cover all the carriages of the train 1. Each of the hoppers 2 is equipped with a weighing level gauge 4 at its lower part; Each hopper 2 is equipped with an electric unloading gate 5 below it; A display screen 6 is installed above the driver's cab of train 1; The camera 3, the weighing level gauge 4, the electric unloading gate 5, and the display screen 6 are electrically connected to the electrical control system via control cables. The electronic control system uses several cameras 3 to capture complete images of all carriages of train 1 through visual recognition and video stitching technology. The electronic control system monitors the amount of material in each silo 2 in real time through each weighing level gauge 4; The electrical control system controls the start and stop of material discharge from the hopper 2 by controlling the switch of the electric unloading gate 5. The electrical control system displays the real-time position status of train 1 and the opening / closing status of electric unloading gate 5 via display screen 6. The train driver observes the information displayed on screen 6 and drives the train 1 to move or stop according to the production operation procedures.

[0025] Example 2: Figure 2 As shown, this embodiment is based on the previous embodiment, but differs from the previous embodiment in that: the control method for the train positioning and loading system based on video stitching technology includes the following steps: S1. System startup; S2. Use visual recognition and video splicing technology to identify whether there is a train 1 under the silo 2. If the result is yes, continue to execute S3. If the result is no, repeat S2. S3. Visual recognition and video stitching technology are used to identify the distance between the current position of train 1 and the optimal loading position; S4. Determine whether train 1 has stopped at the optimal loading position. If the result is yes, continue to execute S5. If the result is no, jump to S13. S5. Control the electric unloading gate 5 to open; S6. Calculate the weight change of silo 2 W0 = W1 - W2, where W1 is the historical weight of silo 2 and W2 is the current weight of silo 2; S7. Update the historical weight value of hopper 2, W1=W2; S8. Calculate the current value of the loading weight of train car 1, W4 = W3 + W0, where W3 is the historical value of the loading weight of train car 1. S9. Determine whether the current value W4 of the loading weight of train car 1 has reached the optimal loading weight. If the result is yes, jump to S11; if the result is no, jump to S10. S10. Use visual recognition and video splicing technology to determine whether the train car has reached the optimal loading volume. If the result is yes, jump to S11; if the result is no, jump to S13. S11. Control the electric unloading gate 5 to close; S12. Update the historical value of the loading weight of train car 1 to W3=W4; S13, Display screen 6 shows the distance between the current position of train 1 and the optimal loading position, and displays the opening and closing status of electric unloading gate 5.

[0026] Note: Each train carriage 1 usually corresponds to multiple material bins 2 for loading. When using the above control method, calculation and control are performed separately by grouping.

[0027] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. For example, if the number of cameras changes, any equivalent substitutions or changes made by those skilled in the art within the scope of the technology disclosed in the present utility model, based on the technical solution and concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A train positioning and loading system based on video stitching technology, characterized in that: The system includes a train (1), a silo (2), a camera (3), a weighing level gauge (4), an electric unloading gate (5), and an electrical control system. The silo (2) is located above the train (1), the camera (3) is located between the train (1) and the silo (2), and the weighing level gauge (4) and the electric unloading gate (5) are both located at the bottom of the silo (2). The camera (3), the weighing level gauge (4), and the electric unloading gate (5) are electrically connected to the electrical control system via control cables.

2. The train positioning and loading system based on video stitching technology according to claim 1, characterized in that: The hoppers (2) are arranged side by side along the direction of train (1), and the cameras (3) are arranged side by side along the direction of train (1) according to the viewing distance. The images captured by the cameras (3) include all carriages of the train (1).

3. The train positioning and loading system based on video stitching technology according to claim 1, characterized in that: The electronic control system uses several cameras (3) and employs visual recognition and video stitching technology to collect complete images of all carriages of the train (1).

4. The train positioning and loading system based on video stitching technology according to claim 1, characterized in that: The electronic control system monitors the amount of material in each silo (2) in real time through each weighing level gauge (4).

5. The train positioning and loading system based on video stitching technology according to claim 1, characterized in that: The electrical control system controls the start and stop of material discharge from the hopper (2) by controlling the switch of the electric unloading gate (5).

6. The train positioning and loading system based on video stitching technology according to claim 1, characterized in that: The train (1) has at least two silos (2) above each carriage. Each carriage and all the silos (2) above it form an independent loading group. The electrical control system performs weight calculation, gate control and loading uniformity adjustment for each loading group.

7. The train positioning and loading system based on video stitching technology according to claim 1, characterized in that: The train (1) has a display screen (6) above the driver's cab on one side. The display screen (6) is electrically connected to the electronic control system via a control cable. The electronic control system displays the position status of the train (1) and the opening and closing status of the electric unloading gate (5) in real time through the display screen (6).

8. The train positioning and loading system based on video stitching technology according to claim 7, characterized in that: The display screen (6) also displays the remaining material quantity of each hopper (2), the real-time loading weight of the carriage, and the volume ratio in real time.

9. The train positioning and loading system based on video stitching technology according to claim 7, characterized in that: The train driver observes the information displayed on the screen (6) and drives the train (1) to move or stop according to the production operation procedures.

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