CN111006748A - Monitoring system for overload and unbalanced load of railway wagon - Google Patents
Monitoring system for overload and unbalanced load of railway wagon Download PDFInfo
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- CN111006748A CN111006748A CN201911319022.3A CN201911319022A CN111006748A CN 111006748 A CN111006748 A CN 111006748A CN 201911319022 A CN201911319022 A CN 201911319022A CN 111006748 A CN111006748 A CN 111006748A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01G—WEIGHING
- G01G19/00—Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups
- G01G19/02—Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups for weighing wheeled or rolling bodies, e.g. vehicles
- G01G19/04—Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups for weighing wheeled or rolling bodies, e.g. vehicles for weighing railway vehicles
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/24—Measuring arrangements characterised by the use of optical techniques for measuring contours or curvatures
- G01B11/25—Measuring arrangements characterised by the use of optical techniques for measuring contours or curvatures by projecting a pattern, e.g. one or more lines, moiré fringes on the object
- G01B11/2518—Projection by scanning of the object
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01G—WEIGHING
- G01G23/00—Auxiliary devices for weighing apparatus
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- Computer Vision & Pattern Recognition (AREA)
- Train Traffic Observation, Control, And Security (AREA)
Abstract
The invention provides a monitoring system for the overload and unbalance loading of a railway wagon, which comprises: the system comprises a laser scanning device, a car number identification device, a video monitoring device, a local power supply communication system and a remote processing system; the train number identification device identifies the train wagon model of a train wagon loaded with coal, the laser scanning device scans the outline of the train wagon, the video monitoring device shoots the image of the train wagon, the local power supply communication system is respectively connected with the laser scanning device, the train number identification device and the video monitoring device, the train number identification device, the laser scanning device and the video monitoring device respectively transmit the data of the train wagon model, the outline of the train wagon and the image of the train wagon to the local power supply communication system, and the remote processing system judges whether the train wagon is overloaded and/or unbalanced loaded. The invention solves the technical problems that the dynamic advanced detection of the overload and unbalance loading condition of each train cannot be scientifically, comprehensively and effectively carried out in the prior art, and hidden danger is brought to the train running safety.
Description
Technical Field
The invention relates to the field of railways, in particular to a monitoring system for the overload and the unbalanced load of a railway wagon.
Background
Railway traffic safety is the central importance of railway transportation work, and the important work that railway departments will prevent goods overload and unbalance loading as guaranteeing traffic safety is constantly on the move. The coal loading unbalance loading problem mainly comprises the following steps: the left-right unbalance loading and the front-back unbalance loading, but accidents such as axle breakage, axle cutting, rail climbing and train overturn caused by the excessive unbalance loading of the train happen occasionally, so that accidents such as terrorism are caused, the safety of railway transportation and the overall image of a railway are greatly influenced, and the excessive unbalance loading of the train becomes an important factor influencing the railway driving safety in recent years. At present, the loading condition of the coal-transporting train can only be monitored by video monitoring and human eye recognition, so that the dynamic advanced detection of the overload and unbalance-loading condition of each train cannot be scientifically, comprehensively and effectively carried out, and hidden danger is brought to the train running safety.
Disclosure of Invention
Based on the problems, the invention provides a monitoring system for the overload and unbalance loading of the train wagon, which solves the technical problem that the loading condition of a coal train is monitored in a video monitoring and human eye identification mode in the prior art, the dynamic advanced detection of the overload and unbalance loading condition of each train cannot be scientifically, comprehensively and effectively carried out, and hidden danger is brought to the running safety of the train.
The invention provides a monitoring system for the overload and unbalance loading of a railway wagon, which comprises:
the system comprises a laser scanning device, a car number identification device, a video monitoring device, a local power supply communication system and a remote processing system;
the train number identification device identifies the train wagon model of a train wagon loaded with coal, the laser scanning device scans the outline of the train wagon, the video monitoring device shoots the image of the train wagon, the local power supply communication system is respectively connected with the laser scanning device, the train number identification device and the video monitoring device, the train number identification device, the laser scanning device and the video monitoring device respectively transmit the data of the train wagon model, the outline of the train wagon and the image of the train wagon to the local power supply communication system, the local power supply communication system transmits the data of the train wagon model, the outline of the train wagon and the image of the train wagon to the remote processing system, the remote processing system calculates the volume data and the three-dimensional outline data of the train wagon according to the data, and judges whether the train wagon is overloaded and/or unbalanced load according to the volume data and the three-dimensional outline data.
In addition, the remote processing system internally comprises three-dimensional profile measurement processing software which calculates volume data and three-dimensional profile data of the train wagon according to the train wagon model, the profile of the train wagon and data of the image of the train wagon.
In addition, the train number recognition device is installed below a train inlet track of the loading station and is connected with the local power supply communication device through an RS232 interface.
In addition, the laser scanning device and the video monitoring device are installed above a platform on the outer side of the loading station in a hanging mode, and when a train passes through the lower portion, the whole train is in the detection distance range of the laser scanning device.
In addition, the laser scanning device and the video monitoring device are fixed through the fixed steel structure support and the protective cover.
In addition, the laser scanning device and the video monitoring device are connected with the local power supply communication device through an RJ45 interface.
In addition, the laser scanning device is installed at a position 2 meters above the wagon, scanning is performed in a section laser scanning mode, the scanning frequency is 75 times per second, the scanning angle interval is 0.25 degrees, and the laser scanning device is used for measuring the profile passing through the wagon below and the internal loading profile.
In addition, the video monitoring device has the functions of camera shooting, transmission, control, display and recording, and the video monitoring device adopts a high-definition infrared video monitoring camera to monitor the overall contour of the carriage in real time, so that the outer contour data of the wagon is provided for a remote processing system.
In addition, the remote processing system is installed inside the loading station.
In addition, the remote processing system calculates volume data and three-dimensional profile data of the train wagon according to the data, and can judge whether the train wagon is empty or not according to the volume data and the three-dimensional profile data.
Through adopting above-mentioned technical scheme, have following beneficial effect:
the invention solves the technical problems that the loading condition of the coal train is monitored in a video monitoring and human eye identification mode in the prior art, the dynamic advanced detection of the overload and unbalance loading condition of each train cannot be scientifically, comprehensively and effectively carried out, and hidden danger is brought to train running safety. The monitoring system of the car wagon overload and unbalance loading that this embodiment provided can carry out real-time detection to the car wagon to whether reachs the condition that has the overload and unbalance loading, the testing result is more accurate, can effectively avoid the dangerous accident in the transportation.
Drawings
FIG. 1 is a schematic diagram of a system for monitoring an excessive vehicle load bias of a railroad car according to an embodiment of the present invention;
fig. 2 is a scanning schematic diagram of the laser scanning apparatus of fig. 1.
Detailed Description
The present invention is described in further detail below with reference to specific embodiments and the attached drawings. It is intended that the present invention not be limited to the particular embodiments disclosed, but that the present invention be limited only by the appended claims.
Referring to fig. 1, the present invention provides a system for monitoring an overload and an unbalance loading of a railroad car, including:
the system comprises a laser scanning device 1, a car number recognition device 2, a video monitoring device 3, a local power supply communication system 4 and a remote processing system 5;
the train number identification device 2 identifies the train type of a train carrying coal, the laser scanning device 1 scans the outline of the train, the video monitoring device 3 shoots images of the train, the local power supply communication system 4 is respectively connected with the laser scanning device 1, the train number identification device 2 and the video monitoring device 3, the train number identification device 2, the laser scanning device 1 and the video monitoring device 3 respectively transmit the data of the train type, the outline of the train and the image of the train to the local power supply communication system 4, the local power supply communication system 4 transmits the data of the train type, the outline of the train and the image of the train to the remote processing system 5, the remote processing system 5 calculates the volume data and the three-dimensional outline data of the train according to the data, and judges whether the train has overload and/or unbalance loading according to the volume data and the three-dimensional outline data.
The local power supply communication system 4 is used for ensuring normal power supply of the laser scanning device 1, the car number identification device 2 and the video monitoring device 3, and simultaneously transmitting data detected by the laser scanning device 1, the car number identification device 2 and the video monitoring device 3 in real time into the remote processing system 5.
The train number recognition device 2 is used for recognizing the train wagon model of the train wagon loaded with coal, and the size of the train wagon is known by recognizing the train wagon model, so that a basis is provided for recognizing the overload and unbalance loading of the train wagon.
The laser scanning device 1 and the video monitoring device 3 collect the outline image and the external image of the train wagon, so that necessary data are provided for the three-dimensional reconstruction of the train wagon.
The remote processing system 5 calculates volume data and three-dimensional profile data of the train wagon according to the model of the train wagon, the profile of the train wagon and the data of the image of the train wagon, and finally judges whether the train wagon is overloaded and/or unbalanced according to the volume data and the three-dimensional profile data.
The embodiment solves the technical problems that the loading condition of the coal train is monitored in a mode of eye recognition through video monitoring in the prior art, the dynamic advanced detection cannot be carried out on the overload and unbalanced load condition of each train scientifically, comprehensively and effectively, and hidden dangers are brought to the train running safety. The monitoring system of the car wagon overload and unbalance loading that this embodiment provided can carry out real-time detection to the car wagon to whether reachs the condition that has the overload and unbalance loading, the testing result is more accurate, can effectively avoid the dangerous accident in the transportation.
In one embodiment, the remote processing system includes three-dimensional profile measurement processing software therein that calculates volume data and three-dimensional profile data of the railroad car based on the model number of the railroad car, the profile of the railroad car, and the data of the image of the railroad car. The three-dimensional profile measurement processing software can obtain the size corresponding to the wagon according to the wagon model.
And the remote processing system is internally provided with three-dimensional contour measurement processing software for calculating volume data and three-dimensional contour data of the train wagon according to the size of the train wagon, the contour of the train wagon and data of the image of the train wagon.
Fusing the data of the size corresponding to the wagon, the contour of the wagon and the image of the wagon to obtain three-dimensional modeling and volume data:
the vehicle type and the vehicle number corresponding to the vehicle wagon are read through the vehicle number identification device, and the identified vehicle type and the vehicle number are matched with detailed information such as the size of the vehicle wagon pre-configured in a database in the remote processing system, so that the size of the vehicle wagon is identified.
The laser scanning device can analyze the 3D point cloud information of each train wagon in real time according to the interval information between the train wagons, namely the upper surface contour information of the train wagon.
The video monitoring device can calculate the forward, backward and stop information of the current train by combining the binding of the train and the railway wagon, and the information further perfects the profile information of the railway wagon, and is specifically as follows:
1) and removing the binding of the wagon. According to the characteristic that the change of the vehicle-bound point cloud data is small, the coordinate value of the vehicle-bound point can be calculated, and the vehicle-bound point cloud data can be deleted.
2) And (5) noise reduction processing. Sparse outliers can be removed based on statistics.
And determining the coordinate value of the lower surface of the contour of the wagon. According to the size of the wagon and the coordinate value of the binding, the coordinate value of the lower surface of the wagon outline can be calculated.
3) And (5) triangularization. With the divide and conquer algorithm, a large number of triangular patches can be generated.
4) The volume is calculated. The triangular patch can generate as many oblique triangular prisms by projecting the plane where the lower surface contour coordinate value of the wagon contour is located, and the total volume can be calculated by accumulating the volumes of the oblique triangular prisms.
Optionally, video graphics processing software is also configured inside the remote processing system. The remote processing system adopts a high-performance data and image processing computer to perform the functions of real-time on-site laser acquisition, three-dimensional model establishment, vehicle number identification system information, vehicle loading volume calculation, real-time display and recording of a hard disk video recorder, automatic voice playing alarm, alarm information retrieval and printing, automatic carriage serial number identification and the like.
In one embodiment, the train number recognition device is installed below a train entrance track of the loading station, and the train number recognition device is connected with the local power supply communication device through an RS232 interface.
In one embodiment, referring to fig. 2, the laser scanning device and the video monitoring device are suspended above the platform outside the loading station, and when a train passes below the laser scanning device, the whole train is within the detection distance range of the laser scanning device. The laser scanning device and the video monitoring device are installed at one position to ensure that the laser scanning device and the video monitoring device shoot images of the same train wagon at the same time. In order to ensure that the whole train is within the detection distance range of the laser scanning device, the laser scanning device and the video monitoring device are suspended and installed above a platform outside the loading station.
In one embodiment, the laser scanning device and the video monitoring device are fixed through a fixed steel structure support and a protective cover. In order to well fix the laser scanning device and the video monitoring device and avoid the influence of the vibration of the passing train, so that the collected data is more accurate, the laser scanning device and the video monitoring device are fixed by a fixed steel structure support and a protective cover.
In one embodiment, the laser scanning device and the video monitoring device are connected with the local power supply communication device through an RJ45 interface. The RJ45 interface is selected to be connected with the local power supply communication device, so that the communication data transmission is faster.
In one embodiment, the laser scanning device is installed at a position 2 meters above the train wagon, scanning is performed in a section laser scanning mode, the scanning frequency is 75 times per second, the scanning angle interval is 0.25 degrees, and the laser scanning device is used for measuring the profile of the train wagon passing below and the internal loading profile. According to the situation of a site, the laser scanning device is arranged at a position 2 meters above the wagon, scanning is carried out in a section laser scanning mode, the scanning frequency is 75 times per second, and the scanning angle interval is 0.25 degrees, so that the contour of the wagon can be rapidly and accurately grabbed.
In one embodiment, the video monitoring device has the functions of shooting, transmitting, controlling, displaying and recording, and the video monitoring device adopts a high-definition infrared video monitoring camera to monitor the overall contour of the carriage in real time, so as to provide the outer contour data of the wagon for a remote processing system.
The video monitoring device adopts a high-definition infrared video monitoring camera to monitor the overall contour of the carriage in real time. Meanwhile, the positioning of the outer contour of the whole carriage is completed by utilizing the video processing function, and outer contour data are provided for three-dimensional contour processing software. The video monitoring system consists of five parts of a camera, transmission, control, display and record registration. The video camera transmits video images to the video recorder through the network video cable for coding, the image data code stream is sent to the remote processing terminal, and meanwhile, the video recorder records and stores the image data code stream, can display images in real time and can perform video playback processing.
In one embodiment, the remote processing system is installed inside the loading station.
In one embodiment, the remote processing system calculates volume data and three-dimensional contour data of the wagon according to the data, and can judge whether the wagon is empty according to the volume data and the three-dimensional contour data. In addition to determining overload and unbalance, it is also possible to determine whether there is no load based on the profile of the load in the skin.
Optionally, the local power supply communication device comprises a local power supply box, a network communication device, relevant connecting pieces and the like. The laser scanning device adopts DC24V power supply equipment, the power supply replacement device in the power supply box provides power, and the power supply of the high-definition infrared video monitoring camera is realized through a POE power supply mode. The laser scanning device and the high-definition infrared video monitoring camera are all connected into the data acquisition box through Ethernet, and are connected to the remote processing system through an optical fiber mode at the rear end of the on-site acquisition box.
By adopting the monitoring system for the train wagon overload and unbalance loading provided by the embodiment, the problem of the train overload and unbalance loading is effectively solved, and the problem of the attack and customs goal of eliminating the serious overload and unbalance of bulk cargo provided by a railway department is actively responded.
Through the analysis of the loading condition, the coal loading effect is scientifically evaluated, the problems of overload, unbalance loading, insufficient loading and the like of the train are timely found and fed back to the downstream railway gantry crane, the problems are quickly taken and measures are timely taken to treat the problems, the accident caused by the overload and unbalance loading problem of the train is avoided, the safety level of the loading operation is improved, and the safety of the external transport and loading train is ensured.
The system can accurately scan the loading condition of the loading vehicle, the accuracy rate exceeds 99.95%, the identification error in the manual visual inspection process is avoided, the safe operation coefficient of the system is improved, and the technical support effect is achieved for safe production work. Meanwhile, vehicle loading condition statistics is completed, all historical records of the whole loading system are effectively recorded since the vehicle is put into use in 10 months in 2019, the problem that the previous loading condition is unclear is solved, and the accuracy of system data is improved.
The number of the problem vehicle acquired by the system is quickly transmitted to the railway gantry crane end, the gantry crane can process overloaded and unbalanced vehicles in a targeted manner according to the acquired number of the problem vehicle, the process that the railway gantry crane end needs to process all vehicles in the prior art is reduced, the working efficiency of the railway gantry crane end is improved by more than 50%, the overstock time of coal-carrying vehicles at the railway gantry crane end is reduced, the railway communication efficiency is improved, the labor intensity of workers is reduced, the safe operation period of equipment is prolonged, the fault frequency of the equipment is reduced, the time for maintaining and maintaining the equipment and the investment of maintenance cost are reduced, and the benefit of equipment management is improved.
The foregoing is considered as illustrative only of the principles and preferred embodiments of the invention. It should be noted that, for those skilled in the art, several other modifications can be made on the basis of the principle of the present invention, and the protection scope of the present invention should be regarded.
Claims (10)
1. A monitoring system for the overload and unbalance loading of a railway wagon is characterized by comprising:
the system comprises a laser scanning device, a car number identification device, a video monitoring device, a local power supply communication system and a remote processing system;
the train number identification device identifies the train wagon model of a train wagon loaded with coal, the laser scanning device scans the outline of the train wagon, the video monitoring device shoots the image of the train wagon, the local power supply communication system is respectively connected with the laser scanning device, the train number identification device and the video monitoring device, the train number identification device, the laser scanning device and the video monitoring device respectively transmit the data of the train wagon model, the outline of the train wagon and the image of the train wagon to the local power supply communication system, the local power supply communication system transmits the data of the train wagon model, the outline of the train wagon and the image of the train wagon to the remote processing system, the remote processing system calculates the volume data and the three-dimensional outline data of the train wagon according to the data, and judges whether the train wagon is overloaded and/or unbalanced load according to the volume data and the three-dimensional outline data.
2. The system for monitoring the excessive unbalance loading of the railroad car according to claim 1,
the remote processing system internally comprises three-dimensional contour measurement processing software, and the three-dimensional contour measurement processing software calculates volume data and three-dimensional contour data of the train wagon according to the model of the train wagon, the contour of the train wagon and the data of the image of the train wagon.
3. The system for monitoring the excessive unbalance loading of the railroad car according to claim 1,
the train number recognition device is installed below a train inlet track of the loading station and is connected with the on-site power supply communication device through an RS232 interface.
4. The system for monitoring the excessive unbalance loading of the railroad car according to claim 1,
the laser scanning device and the video monitoring device are mounted above a platform on the outer side of the loading station in a hanging mode, and when a train passes through the lower portion, the whole train is within the detection distance range of the laser scanning device.
5. The system for monitoring the excessive vehicle load according to claim 4,
the laser scanning device and the video monitoring device are fixed through the fixed steel structure support and the protective cover.
6. The system for monitoring the excessive unbalance loading of the railroad car according to claim 1,
the laser scanning device and the video monitoring device are connected with the local power supply communication device through an RJ45 interface.
7. The system for monitoring the excessive unbalance loading of the railroad car according to claim 1,
the laser scanning device is installed at a position 2 meters above the wagon, scanning is carried out in a section laser scanning mode, the scanning frequency is 75 times per second, the scanning angle interval is 0.25 degrees, and the laser scanning device is used for measuring the profile passing through the wagon below and the internal loading profile.
8. The system for monitoring the excessive unbalance loading of the railroad car according to claim 1,
the video monitoring device has the functions of camera shooting, transmission, control, display and recording, and adopts a high-definition infrared video monitoring camera to monitor the whole contour of the carriage in real time, so as to provide the outer contour data of the wagon for a remote processing system.
9. The system for monitoring the excessive unbalance loading of the railroad car according to claim 1,
the remote processing system is installed inside the loading station.
10. The system for monitoring the excessive vehicle load according to any one of claims 1 to 9,
the remote processing system calculates volume data and three-dimensional profile data of the train wagon according to the data, and can judge whether the train wagon has no load according to the volume data and the three-dimensional profile data.
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| CN201911319022.3A CN111006748A (en) | 2019-12-19 | 2019-12-19 | Monitoring system for overload and unbalanced load of railway wagon |
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| CN113916297A (en) * | 2021-10-18 | 2022-01-11 | 淮北矿业股份有限公司临涣选煤厂 | Coal measurement and quality inspection integrated intelligent management and control system |
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