A Train Coal Turnover Control System and Control Method

Abstract

This invention provides an unmanned train coal counting and control system and its control method. The system includes a main control unit, a car number identification unit, a car position determination unit, a weighing unit, a car position adjustment unit, and an unloading unit. The car number identification unit identifies the electronic tag information of each car in the train. The main control unit determines the car number of the car based on the electronic tag information. The car position determination unit determines whether the car on the weighing platform meets the measurement conditions and generates a determination result. The main control unit generates a weighing command when the determination result is met and an adjustment command when the result is not met. The weighing unit weighs the car according to the weighing command. The car position adjustment unit adjusts the position of the car according to the adjustment command to make the car meet the measurement conditions. The unloading unit controls the unloading machine to unload the weighed car that is located in the unloading machine. This invention improves unloading efficiency and measurement accuracy.

Description

Technical Field

[0001] This invention relates to the field of turnover control technology, specifically to an unattended turnover control system for coal trains and its control method. Background Technology

[0002] Most of the coal needed for thermal power plants is transported to the plant by rail in whole train cars. Railway locomotives push the entire train of coal-loaded cars to the static weighbridge area of ​​the power plant's unloading line. The shunting locomotive of the tippler system provides traction power, pulling the entire train car by car through the static weighbridge for weighing, and then pulling it into the tippler for unloading. The tippler system completes the weighing and unloading of each coal-loaded car through a reversible operation. The unloading operation of the coal-loaded cars is completed by the coordinated work of the static weighbridge and the tippler system. The unloading process is as follows: The railway locomotive pushes the entire train of coal-loaded cars to the static weighbridge area of ​​the power plant's unloading line. The tippler operator controls the shunting locomotive to pull or push the first car into the weighing position, such as... Figure 1 As shown; after the weighbridge operator confirms that all four wheels of the car body are completely stationary on the weighing platform and the instrument reading is stable, they press the weighing button to complete the weighing of the first car body. After the first car body is weighed, the tippler operator controls the shunting locomotive to pull the first car body to the wheel clamp area, until the second car body arrives at the weighing position, as shown. Figure 2 As shown; after all four wheels of the car body are completely stationary on the weighing platform of the rail scale and the instrument weight is stable, press the weighing button to complete the weighing of the second car body. After the second car body is weighed, the tippler operator controls the shunting locomotive to pull the first car body to the unloading machine for unloading. During this process, the uncoupling personnel separate the first car body from the entire train car body in the wheel clamp area. The first car body is pulled by the shunting locomotive to the unloading machine for unloading. After being uncoupled, the entire train car body loses traction power and naturally decelerates due to inertia until the second car body stops in the wheel clamp area. At this time, the third car body is on the weighing platform of the rail scale to be weighed. Figure 3 As shown, the weighbridge operator manually confirms that all four wheels of the third car are completely on the weighing platform and that the instrument reading is stable before manually pressing the weighing button to complete the weighing of the third car. This process is repeated until the last car has finished unloading coal.

[0003] Because railway freight cars are composed of a mix of C62, C64, and C70 series cars, with the C62 and C64 series freight cars measuring 13438mm in length and the C70 series freight cars measuring 13976mm in length (a difference of 538mm), the unloading of these mixed car types presents uncertainties. Due to the manual uncoupling position and the distance the remaining freight cars travel due to inertia after uncoupling, it is difficult to guarantee that only the four wheels of N+2 freight cars will remain completely stationary on the weighing platform under inertia after uncoupling. This does not meet the measurement condition of the coal unloading process, which only allows the four wheels of the same freight car to be completely on the weighing platform.

[0004] When the measurement conditions are not met, the following technical problems will arise: (1) In the existing technology, frequent communication and vehicle adjustment are usually required between the measurement operator and the tippler operator, which leads to unsmooth measurement and unloading, affecting unloading efficiency; (2) When the measurement conditions are not met, there is a certain probability that the measurement operator will not discover it and mistakenly use this state as the measurement state for weighing, resulting in inaccurate measurement data. Therefore, it is urgent to provide a train coal unattended measurement and tippler control system and its control method to solve the technical problems of inaccurate measurement data and low unloading efficiency caused by the failure to meet the measurement conditions in the existing technology. Summary of the Invention

[0005] In view of this, it is necessary to provide an unmanned coal train counting and control system and its control method to solve the technical problems of inaccurate measurement data and low unloading efficiency caused by failure to meet measurement conditions in the existing technology.

[0006] On the one hand, the present invention provides an unmanned train coal handling and control system, including a main control unit, a car number identification unit, a car position determination unit, a weighing unit, a car position adjustment unit, and an unloading unit;

[0007] The vehicle number identification unit is used to identify the electronic tag information of each car in the train;

[0008] The main control unit is used to determine the car number of the railcar based on the electronic tag information;

[0009] The parking space determination unit is used to determine whether the car body located on the weighing platform meets the measurement conditions and generate a determination result;

[0010] The main control unit is used to generate a weighing command when the judgment result is satisfied, and to generate an adjustment command when the judgment result is not satisfied.

[0011] The weighing unit is used to weigh the car body according to the weighing command and obtain the weighing result;

[0012] The parking space adjustment unit is used to adjust the position of the car body according to the adjustment command so that the car body meets the measurement conditions;

[0013] The unloading unit is used to control the unloading machine to unload the car cars that have been weighed and are located inside the unloading machine.

[0014] In some possible implementations, the vehicle number recognition unit includes a dual-path vehicle number recognizer, a first wide-band microwave antenna, and a second wide-band microwave antenna;

[0015] The first wide-band microwave antenna and the second wide-band microwave antenna are used to generate response signals based on the electronic tags on the vehicle body;

[0016] The dual-path vehicle number identifier is used to identify the electronic tag information based on the response signal.

[0017] In some possible implementations, the parking space determination unit includes a first set of wheel sensors, a second set of wheel sensors, and a first position determination controller disposed at both ends of the weighing platform. The first set of wheel sensors includes a plurality of first wheel sensors arranged at intervals, and the second set of wheel sensors includes a plurality of second wheel sensors arranged at intervals.

[0018] The plurality of first wheel sensors are used to identify the direction of travel and group of the wheels passing through the plurality of first wheel sensors;

[0019] The plurality of second wheel sensors are used to identify the direction of travel and group of the wheels passing through the plurality of second wheel sensors;

[0020] The first positioning controller is used to determine whether the car body located on the weighing platform meets the measurement conditions based on the wheel travel direction and group of the plurality of first wheel sensors and the plurality of second wheel sensors, and to generate a determination result.

[0021] In some possible implementations, the plurality of first wheel sensors include first sub-wheel sensors attached to the inner side of the weighing platform, the plurality of second wheel sensors include second sub-wheel sensors attached to the inner side of the weighing platform, and the unmanned train coal turning and control system further includes a shunting locomotive interlocking control unit.

[0022] The first positioning controller is also used to determine whether the car body located on the weighing platform is in a boundary state based on the first sub-wheel sensor and the second sub-wheel sensor;

[0023] The shunting locomotive interlocking control unit is used to control the shunting locomotive to stop pulling the car when the car is in a boundary state.

[0024] In some possible implementations, the unmanned train coal counting and control system further includes a car number verification unit, which includes a third set of wheel sensors installed between the wheel clamp and the unloading machine, and a second positioning controller. The third set of wheel sensors includes multiple third wheel sensors.

[0025] The third set of wheel sensors is used to identify the direction of travel and group of the wheels passing through the plurality of third wheel sensors;

[0026] The second positioning controller is used to determine the number of wagons entering the unloading machine based on the wheel travel direction and group of the plurality of third wheel sensors.

[0027] In some possible implementations, the unmanned coal train turning and control system also includes a metering-unloading interlocking control unit;

[0028] The metering-unloading interlocking control unit is used to determine whether there are any unmetered wagons that have reached the wheel clamp or the unloading machine based on the number of wagons entering the unloading machine and the number of wagons that have been weighed.

[0029] The parking space adjustment unit is also used to adjust the car body that has not been weighed before it arrives at the wheel clamp or unloading machine to the weighing platform.

[0030] In some possible implementations, the metering-unloading interlock control unit is specifically used to determine whether the number of wagons that have entered and completed weighing is equal to the number of wagons that have entered the unloading machine. If the number of wagons that have entered and completed weighing is equal to the number of wagons that have entered the unloading machine, then there are no wagons that have not been metered and have arrived at the unloading machine. If the number of wagons that have entered and completed weighing is less than the number of wagons that have entered the unloading machine, then there are wagons that have not been metered and have arrived at the wheel clamp or the unloading machine.

[0031] In some possible implementations, the unmanned train coal turnaround control system also includes a stability monitoring unit;

[0032] The stability monitoring unit is used to determine whether the weighing result is stable. When the weighing result is stable, the weighing result is the target weighing result.

[0033] In some possible implementations, the unmanned train coal turnaround control system also includes a heartbeat monitoring unit;

[0034] The heartbeat monitoring unit is used to determine whether the main control unit has malfunctioned. When the main control unit malfunctions, it controls the unloading unit to stop unloading.

[0035] On the other hand, the present invention also provides a control method for an unmanned coal train turnaround control system, applicable to the unmanned coal train turnaround control system described in any of the above possible implementations, wherein the control method for the unmanned coal train turnaround control system includes:

[0036] Identify the electronic tag information of each car in a train;

[0037] The car number of the railcar is determined based on the electronic tag information;

[0038] Determine whether the car body located on the weighing platform meets the measurement conditions and generate a determination result;

[0039] When the determination result is satisfied, a weighing command is generated; when the determination result is not satisfied, an adjustment command is generated.

[0040] The railcar is weighed according to the weighing command to obtain the weighing result;

[0041] The position of the wagon is adjusted according to the adjustment instruction so that the wagon meets the measurement conditions;

[0042] Control the unloading machine to unload the car cars that have been weighed and are located inside the unloading machine.

[0043] The beneficial effects of the above embodiments are as follows: The unmanned train coal turning and control system provided by the present invention determines whether the wagons located on the weighing platform meet the measurement conditions by setting a wagon position determination unit, and generates a determination result. When the determination result is met, a weighing command is generated, and the weighing unit is used to weigh the wagons according to the weighing command to obtain the weighing result. When the determination result is not met, an adjustment command is generated, and the wagon position adjustment unit is used to adjust the position of the wagons according to the adjustment command to make the wagons meet the measurement adjustment requirements. This eliminates the need for manual intervention in the measurement work, improving the accuracy of the measurement data. Furthermore, measurement and unloading are achieved without manual intervention, improving the efficiency of measurement and unloading. In addition, eliminating manual intervention reduces labor costs and can bring significant benefits to enterprises. Attached Figure Description

[0044] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0045] Figure 1 This is a schematic diagram of an embodiment of measuring the first section of a railcar in the prior art;

[0046] Figure 2 This is a schematic diagram of an embodiment of measuring a second car body in the prior art;

[0047] Figure 3 This is a schematic diagram of an embodiment of measuring a third section of a wagon in the prior art;

[0048] Figure 4 This is a schematic diagram of an embodiment of the unmanned coal train turning and control system provided by the present invention;

[0049] Figure 5 This is a schematic flowchart of an embodiment of the control method for the unmanned coal train turning and control system provided by the present invention. Detailed Implementation

[0050] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0051] It should be understood that the illustrative drawings are not drawn to scale. The flowcharts used in this invention illustrate operations implemented according to some embodiments of the invention. It should be understood that the operations in the flowcharts may not be implemented in sequence, and steps without logical contextual relationships may be reversed or performed simultaneously. Furthermore, those skilled in the art, guided by the content of this invention, may add one or more other operations to the flowcharts, or remove one or more operations from the flowcharts.

[0052] Some of the block diagrams shown in the accompanying drawings are functional entities and do not necessarily correspond to physically or logically independent entities. These functional entities can be implemented in software, in one or more hardware modules or integrated circuits, or in different network and / or processor systems and / or microcontroller systems.

[0053] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of the invention. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0054] This invention provides an unmanned train coal turning and control system and its control method, which are described below.

[0055] Before demonstrating the embodiments, the equipment and metering conditions for the unloading operation will be introduced, such as... Figure 1-3 As shown, the static rail scale is a weighing platform for measuring car bodies. The car body unloading equipment includes an unloader, a shunting locomotive, and a wheel clamp. The static rail scale weighing platform is 14 meters long and is used for static measurement of the entire car body. The wheel clamp is located between the rail scale and the unloader, with its centerline 12 meters from the near end of the static rail scale, and is used to restrict the wheel slippage of the car body to be unloaded. The shunting locomotive is a traction device responsible for pulling the car body to the unloader. The unloader is a coal unloading device used to unload the car body.

[0056] The measurement conditions include: only all four wheels of the same wagon are allowed to be fully on the weighing platform; and the instrument weight data remains stable.

[0057] The unmanned train coal unloading and control system and its control method provided in this invention are used to automate unloading operations.

[0058] Figure 4 This is a schematic flowchart of an embodiment of the unmanned coal train turning and control system provided by the present invention, as shown below. Figure 4 As shown, the unmanned train coal handling and control system 10 includes a main control unit 100, a car number identification unit 200, a car position determination unit 300, a weighing unit 400, a car position adjustment unit 500, and an unloading unit 600.

[0059] The car number identification unit 200 is used to identify the electronic tag information of each car in the train;

[0060] The main control unit 100 is used to determine the car number of the railcar based on the electronic tag information;

[0061] The parking space determination unit 300 is used to determine whether the car body located on the weighing platform meets the measurement conditions and generate a determination result;

[0062] The main control unit 100 is used to generate a weighing command when the judgment result is satisfied, and to generate an adjustment command when the judgment result is not satisfied;

[0063] The weighing unit 400 is used to weigh the car body according to the weighing command and obtain the weighing result;

[0064] The parking space adjustment unit 500 is used to adjust the position of the car body according to the adjustment command so that the car body meets the measurement conditions;

[0065] The unloading unit 600 is used to control the unloading machine to unload the car cars that have been weighed and are located inside the unloading machine.

[0066] Compared with existing technologies, the unmanned train coal counting and control system 10 provided in this embodiment of the invention determines whether the wagons located on the weighing platform meet the measurement conditions by setting a wagon position determination unit 300 and generating a determination result. When the determination result is met, a weighing command is generated, and the weighing unit 400 weighs the wagons according to the weighing command to obtain the weighing result. When the determination result is not met, an adjustment command is generated, and the wagon position adjustment unit 500 adjusts the position of the wagons according to the adjustment command to make the wagons meet the measurement adjustment requirements. This eliminates the need for manual intervention in the measurement work, improving the accuracy of the measurement data. Furthermore, measurement and unloading are achieved without manual intervention, improving the efficiency of measurement and unloading. In addition, eliminating manual intervention reduces labor costs and can bring significant benefits to enterprises.

[0067] It should be understood that the actuator of the parking space adjustment unit 500 is a shunting machine.

[0068] In specific embodiments of the present invention, such as Figure 4 As shown, the vehicle number recognition unit 200 includes a dual-path vehicle number recognizer 210, a first wide-band microwave antenna 220, and a second wide-band microwave antenna 230.

[0069] The first wideband microwave antenna 220 and the second wideband microwave antenna 230 are used to generate response signals based on the electronic tags on the vehicle body;

[0070] The dual-path vehicle number reader 210 is used to identify electronic tag information based on response signals.

[0071] It should be understood that the first wide-band microwave antenna 220 and the second wide-band microwave antenna 230 are attached to the weighing platform, and the microwave recognition range of the first wide-band microwave antenna 220 and the second wide-band microwave antenna 230 can cover the electronic tag installation area between the bogies of the entire car body, so that the electronic tag information of the car body can be correctly identified as long as all four wheels of the car body are completely stopped on the weighing platform.

[0072] Furthermore, this embodiment of the invention, by setting up a dual-path vehicle number identifier 210, a first wide-range microwave antenna 220, and a second wide-range microwave antenna 230, can identify the vehicle numbers of car bodies moving in two directions, either close to or far from the unloading machine. This overcomes the technical problem in the prior art, which can only identify the vehicle numbers of car bodies moving in the direction close to the unloading machine. This leads to the need to control the shunting machine to move the car body away from the unloading machine when the measurement conditions are not met. When the car body is on the weighing platform, there is a problem that the electronic tag installation position is uncertain and the recognition range of the microwave antenna in the prior art cannot fully cover the electronic tag installation area between the bogies, resulting in the inability to identify the car body number. This improves the accuracy and reliability of identifying car body numbers.

[0073] In a specific embodiment of the present invention, the horizontal beamwidth of the first wide-band microwave antenna 220 and the second wide-band microwave antenna 230 is 150°.

[0074] In some embodiments of the present invention, such as Figure 4 As shown, the parking space determination unit 300 includes a first set of wheel sensors 310, a second set of wheel sensors 320 and a first position determination controller 330 disposed at both ends of the weighing platform. The first set of wheel sensors 310 includes a plurality of first wheel sensors arranged at intervals, and the second set of wheel sensors 320 includes a plurality of second wheel sensors arranged at intervals.

[0075] Multiple first wheel sensors are used to identify the direction of travel and group of the wheels passing through the multiple first wheel sensors;

[0076] Multiple second wheel sensors are used to identify the direction and group of travel of the wheels passing through the multiple second wheel sensors;

[0077] The first positioning controller 330 is used to determine whether the car body located on the weighing platform meets the measurement conditions based on the wheel travel direction and group of multiple first wheel sensors and multiple second wheel sensors, and to generate a determination result.

[0078] The embodiments of the present invention improve the reliability of identifying the wheel travel direction and group by setting multiple first wheel sensors and multiple second wheel sensors.

[0079] In a specific embodiment of the present invention, each car body has four wheels. The calculation method for the wheel numbers passed by the first set of wheel sensors 310 and the second set of wheel sensors 320 when the car body stops at the weighing platform is as follows: When the Nth car body stops at the weighing platform and meets the measurement conditions, the number of wheels passed by the first set of wheel sensors 310 is 4N, and the number of wheels passed by the second set of wheel sensors 320 is 4N-4. Therefore, the direction of wheel travel is along the direction closest to the unloading machine.

[0080] In a specific embodiment of the present invention, the first group of wheel sensors 310 includes three first wheel sensors, the second group of wheel sensors 320 includes three second wheel sensors, and the spacing between the plurality of first wheel sensors and the plurality of second wheel sensors is 8cm.

[0081] To prevent the shunting locomotive from continuing to pull wagons that originally met the measurement criteria, thus causing the wagons to no longer meet the measurement criteria, in some embodiments of the present invention, such as... Figure 4As shown, the multiple first wheel sensors include a first sub-wheel sensor 311 attached to the inside of the weighing platform, and the multiple second wheel sensors include a second sub-wheel sensor 321 attached to the inside of the weighing platform. The unmanned train coal turning and control system 10 also includes a shunting locomotive interlocking control unit 700.

[0082] The first positioning controller 330 is also used to determine whether the car body located on the weighing platform is in a boundary state based on the first sub-wheel sensor 311 and the second sub-wheel sensor 321.

[0083] The shunting locomotive interlocking control unit 700 is used to control the shunting locomotive to stop pulling cars when the car is in a boundary state.

[0084] This invention, by setting up a shunting locomotive interlocking control unit 700 to stop pulling the wagon when it is in a boundary state, can ensure that the wagons on the weighing platform meet the measurement conditions and improve measurement efficiency.

[0085] Specifically, the boundary state is as follows: when the 4N+5 wheel of the N+2th car body triggers the second sub-wheel sensor 321 or the 4N+8th wheel triggers the first sub-wheel sensor 311, the car body is in the boundary state.

[0086] It should be understood that after weighing is completed, the shunting locomotive will stop traction by contacting the control system, and the shunting locomotive will pull the weighed car into the unloading machine.

[0087] In order to count the number of wagons entering the unloading machine, in some embodiments of the present invention, such as... Figure 4 As shown, the unmanned train coal counting and control system also includes a car number verification unit 800. The car number verification unit 800 includes a third set of wheel sensors 810 installed between the wheel clamp and the unloading machine, and a second position controller 820. The third set of wheel sensors 810 includes multiple third wheel sensors.

[0088] The third set of wheel sensors 810 is used to identify the direction of travel and group of wheels passing through multiple third wheel sensors;

[0089] The second positioning controller 820 is used to determine the number of wagons entering the unloading machine based on the wheel travel direction and group as detected by multiple third wheel sensors.

[0090] In a specific embodiment of the present invention, the third set of wheel sensors 810 includes three third wheel sensors arranged at equal intervals, with a spacing of 8 cm between two adjacent third wheel sensors.

[0091] To avoid the situation where wagons are lost due to being pulled into the unloading machine without being weighed, resulting in missing weighing data for those wagons, in some embodiments of the present invention, such as... Figure 4As shown, the unmanned coal train turning and control system 10 also includes a metering-unloading interlocking control unit 900;

[0092] The metering-unloading interlock control unit 900 is used to determine whether there are any unmetered wagons that have reached the wheel clamps or the unloading machine based on the number of wagons entering the unloading machine and the number of wagons that have been weighed.

[0093] The parking space adjustment unit 500 is also used to adjust the car bodies that have not been weighed and have arrived at the wheel clamp or unloading machine to the weighing platform.

[0094] By setting up a metering-unloading interlocking control unit 900, this embodiment of the invention can ensure that all wagons arriving at the unloading machine are weighed wagons, thereby improving the reliability of the unmanned coal train turning and control system 10.

[0095] In this embodiment of the invention, the number of wagons located at the weighing platform differs from that of wagons located in the unloading machine by two. That is, if the wagon number at the weighing platform is N+2, then the wagon number in the unloading machine is N. Therefore, in a specific embodiment of the invention, the metering-unloading interlocking control unit 900 is specifically used to determine whether the number of wagons entering the weighing machine and the number of wagons entering the unloading machine are equal to 2. If the number of wagons entering the weighing machine and the number of wagons entering the unloading machine are equal to 2, then there are no wagons that have not been metered and have reached the wheel clamp or the unloading machine. If the number of wagons entering the weighing machine and the number of wagons entering the unloading machine are less than 2, then there are wagons that have not been metered and have reached the wheel clamp or the unloading machine.

[0096] It should be understood that if there are unmeasured wagons that have reached the wheel clamps or unloading machine, the unloading machine should be stopped from unloading until there are no more unmeasured wagons that have reached the wheel clamps or unloading machine. Then the unloading machine can lift the stop unloading restriction and unload the wagons.

[0097] It should be noted that the weighing result of the weighing unit 400 is displayed through a weighing instrument, and the measurement conditions include the limitation that measurement is only performed when the instrument's weight data remains stable. Therefore, in some embodiments of the present invention, such as... Figure 4 As shown, the unmanned train coal handling and control system 10 also includes a stability monitoring unit 1000;

[0098] The stability monitoring unit 1000 is used to determine whether the weighing result is stable. When the weighing result is stable, the weighing result is the target weighing result.

[0099] The embodiments of the present invention can ensure that the measurement meets the measurement conditions and further improve the measurement accuracy by setting a stable monitoring unit 1000.

[0100] In a specific embodiment of the present invention, the stability of the weighing result is specifically achieved as follows: the stability monitoring unit 1000 collects the weighing instrument data in real time and performs difference calculation on the data of 50 adjacent frames of instruments. When the range of the 50 adjacent frames of data is less than the set range standard value, the weighing result is stable; otherwise, it is unstable.

[0101] It should be understood that the standard range value can be set or adjusted based on experience, and no specific limitation is made here.

[0102] To prevent the connection between the main control unit 100 and the unloading unit 600 from being lost due to reasons such as system crash or power failure, and to avoid the unloading unit 600 continuing to perform unloading operations when the main control unit 100 malfunctions, thus causing errors in the unloading operation, in some embodiments of the present invention, such as... Figure 4 As shown, the unmanned train coal handling and control system 10 also includes a heartbeat monitoring unit 1100;

[0103] The heartbeat monitoring unit 1100 is used to determine whether the main control unit 100 has malfunctioned. When the main control unit 100 malfunctions, it controls the unloading unit 600 to stop unloading.

[0104] It should be understood that when the main control unit 100 returns to normal and there are no unloaded wagons that have not been weighed and have arrived at the unloading machine, the unloading operation of the unloading unit 600 will resume.

[0105] The embodiments of the present invention can further improve the reliability and accuracy of the unloading unit 600 in unloading operations by setting up a heartbeat monitoring unit 1100.

[0106] On the other hand, based on the unmanned coal train turning and control system, this invention also provides a control method for the unmanned coal train turning and control system, applicable to the unmanned coal train turning and control system described in any of the above embodiments; such as Figure 5 As shown, the control method of the unmanned coal train turnaround control system includes:

[0107] S501. Identify the electronic tag information of each car in a train;

[0108] S502. Determine the car number of the wagon based on the electronic tag information;

[0109] S503. Determine whether the car body located on the weighing platform meets the measurement conditions and generate the determination result;

[0110] S504. When the judgment result is satisfied, a weighing command is generated; when the judgment result is not satisfied, an adjustment command is generated.

[0111] S505. Weigh the car body according to the weighing command and obtain the weighing result;

[0112] S506. Adjust the position of the wagon according to the adjustment instruction to make the wagon meet the measurement conditions;

[0113] S507. Control the unloading machine to unload the car cars that have been weighed and are located inside the unloading machine.

[0114] It should be noted that the steps in the methods in the above embodiments can be added or expanded according to the various modules or units in the unmanned coal train turning and control system. For details, please refer to the description in the embodiments of the unmanned coal train turning and control system, which will not be repeated here.

[0115] Those skilled in the art will understand that all or part of the processes of the methods described in the above embodiments can be implemented by a computer program instructing related hardware (such as a processor, controller, etc.), and the computer program can be stored in a computer-readable storage medium. The computer-readable storage medium may be a disk, optical disk, read-only memory, or random access memory, etc.

[0116] The above provides a detailed description of the unmanned train coal handling and control system and its control method provided by the present invention. Specific examples have been used to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is only for the purpose of helping to understand the method and core ideas of the present invention. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of the present invention. Therefore, the content of this specification should not be construed as a limitation of the present invention.

Claims

1. A train coal unmanned operation and control system, characterized in that, It includes a main control unit, a vehicle number recognition unit, a parking space determination unit, a weighing unit, a parking space adjustment unit, and an unloading unit; The vehicle number identification unit is used to identify the electronic tag information of each car in the train; The main control unit is used to determine the car number of the railcar based on the electronic tag information; The parking space determination unit is used to determine whether the car body located on the weighing platform meets the measurement conditions and generate a determination result; The main control unit is used to generate a weighing command when the judgment result is satisfied, and to generate an adjustment command when the judgment result is not satisfied. The weighing unit is used to weigh the car body according to the weighing command and obtain the weighing result; The parking space adjustment unit is used to adjust the position of the car body according to the adjustment command so that the car body meets the measurement conditions; The measurement conditions include: only all four wheels of the same wagon are allowed to be fully on the weighing platform; The unloading unit is used to control the unloading machine to unload the car cars that have been weighed and are located inside the unloading machine; The parking space determination unit includes a first set of wheel sensors, a second set of wheel sensors, and a first positioning controller disposed at both ends of the weighing platform. The first set of wheel sensors includes multiple first wheel sensors spaced apart, and the second set of wheel sensors includes multiple second wheel sensors spaced apart. The multiple first wheel sensors include first sub-wheel sensors attached to the inner side of the weighing platform, and the multiple second wheel sensors include second sub-wheel sensors attached to the inner side of the weighing platform. The unmanned train coal turning and control system also includes a shunting locomotive interlocking control unit. The first positioning controller is also used to determine whether the car body located on the weighing platform is in a boundary state based on the first sub-wheel sensor and the second sub-wheel sensor; The shunting locomotive interlocking control unit is used to control the shunting locomotive to stop pulling the car when the car is in a boundary state; The unmanned train coal counting and control system also includes a car number verification unit and a metering-unloading interlocking control unit. The vehicle count verification unit is used to determine the number of wagons entering the unloading machine; the vehicle count verification unit includes a third set of wheel sensors installed between the wheel clamp and the unloading machine and a second positioning controller, the third set of wheel sensors including multiple third wheel sensors; The metering-unloading interlocking control unit is specifically used to determine whether the number of wagons that have entered and completed weighing is equal to the number of wagons that have entered the unloading machine. If the number of wagons that have entered and completed weighing is equal to the number of wagons that have entered the unloading machine, then there are no wagons that have not been metered and have arrived at the unloading machine. If the number of wagons that have entered and completed weighing is less than the number of wagons that have entered the unloading machine, then there are wagons that have not been metered and have arrived at the wheel clamp or the unloading machine. The parking space adjustment unit is also used to adjust the car body that has not been weighed before it arrives at the wheel clamp or unloading machine to the weighing platform.

2. The unmanned train coal handling and control system according to claim 1, characterized in that, The vehicle number recognition unit includes a dual-path vehicle number recognizer, a first wide-amplitude microwave antenna, and a second wide-amplitude microwave antenna. The first wide-band microwave antenna and the second wide-band microwave antenna are used to generate response signals based on the electronic tags on the vehicle body; The dual-path vehicle number identifier is used to identify the electronic tag information based on the response signal.

3. The unmanned train coal handling and control system according to claim 1, characterized in that, The plurality of first wheel sensors are used to identify the direction of travel and group of the wheels passing through the plurality of first wheel sensors; The plurality of second wheel sensors are used to identify the direction of travel and group of the wheels passing through the plurality of second wheel sensors; The first positioning controller is used to determine whether the car body located on the weighing platform meets the measurement conditions based on the wheel travel direction and group of the plurality of first wheel sensors and the plurality of second wheel sensors, and to generate a determination result.

4. The unmanned train coal handling and control system according to claim 1, characterized in that, The third set of wheel sensors is used to identify the direction of travel and group of the wheels passing through the plurality of third wheel sensors; The second positioning controller is used to determine the number of wagons entering the unloading machine based on the wheel travel direction and group of the plurality of third wheel sensors.

5. The unmanned train coal handling and control system according to claim 1, characterized in that, The unmanned train coal turnover control system also includes a stability monitoring unit; The stability monitoring unit is used to determine whether the weighing result is stable. When the weighing result is stable, the weighing result is the target weighing result.

6. The unmanned train coal handling and control system according to claim 1, characterized in that, The unmanned train coal turnover control system also includes a heartbeat monitoring unit; The heartbeat monitoring unit is used to determine whether the main control unit has malfunctioned. When the main control unit malfunctions, it controls the unloading unit to stop unloading.

7. A control method for an unattended train coal handling and control system, characterized in that, The unmanned coal train turning and control system according to any one of claims 1-6, wherein the control method of the unmanned coal train turning and control system includes: Identify the electronic tag information of each car in a train; The car number of the railcar is determined based on the electronic tag information; Determine whether the car body located on the weighing platform meets the measurement conditions and generate a determination result; When the determination result is satisfied, a weighing command is generated; when the determination result is not satisfied, an adjustment command is generated. The railcar is weighed according to the weighing command to obtain the weighing result; The position of the wagon is adjusted according to the adjustment instruction so that the wagon meets the measurement conditions; Control the unloading machine to unload the car cars that have been weighed and are located inside the unloading machine.

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