CN112249077A - Automatic unhooking method for factory and mine railways - Google Patents
Automatic unhooking method for factory and mine railways Download PDFInfo
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- CN112249077A CN112249077A CN202011259163.3A CN202011259163A CN112249077A CN 112249077 A CN112249077 A CN 112249077A CN 202011259163 A CN202011259163 A CN 202011259163A CN 112249077 A CN112249077 A CN 112249077A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61G—COUPLINGS; DRAUGHT AND BUFFING APPLIANCES
- B61G7/00—Details or accessories
- B61G7/04—Coupling or uncoupling by means of trackside apparatus
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
- B61L27/00—Central railway traffic control systems; Trackside control; Communication systems specially adapted therefor
- B61L27/70—Details of trackside communication
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Abstract
The invention discloses an automatic unhooking method for a factory and mine railway, which comprises the following steps: the method comprises the steps of obtaining a dispatching instruction, analyzing the dispatching instruction by utilizing a communication instruction analyzing technology to obtain an unhooking operation application, controlling linear operation of a motor through an unhooking execution unit to realize unhooking operation, utilizing execution position back-picking to check the unhooking operation to obtain a checking result, and transmitting the checking result to a dispatching center through network communication to obtain an automatic unhooking result. The method can realize automation of unhooking of the factory and mine locomotive transportation, realize accurate automatic operation, improve production efficiency and reduce safety accidents.
Description
Technical Field
The invention relates to the field of operation of industrial and mining locomotives and the field of embedded control, in particular to an automatic unhooking method for an industrial and mining railway.
Background
At present, mineral aggregate is required to be poured at an appointed position by a dumping car device in the transportation of factory and mine railway mineral aggregate, a dumping car transfer device is required to disassemble a locomotive section by section for operation, the unhooking work of a freight marshalling station is mainly finished manually, unhooking workers record the passing number of carriages while walking according to the requirement of an operation list, a proper unhooking position is found by experience, a unhooking handle is held by hands to lift a coupler knuckle pin, so that a compressed coupler is automatically opened under the driving of the self gravity of the coupler car, and the unhooking work is finished.
The existing railway train structure still adopts an old lock hook structure, and workers must manually unhook and hook the train. The manual unhooking has many drawbacks, the working condition is complex, the labor intensity is high, the operation is easy to be wrong, safety accidents are caused, and the working efficiency is low. In addition, the work sheet is easy to be stained and lost, and the work of personnel is tense, especially in bad weather such as wind, frost, rain, snow, fog and the like, safety accidents are easy to happen.
Therefore, a new technical solution is needed to solve the above problems.
Disclosure of Invention
The invention provides an automatic unhooking method for a factory and mine railway, and aims to solve the problems that manual unhooking is complex in working condition, high in labor intensity, prone to misoperation and prone to causing safety accidents in the prior art.
In order to achieve the purpose, the invention adopts the following technical scheme:
the invention discloses an automatic unhooking method for a factory and mine railway, which comprises the following steps of:
acquiring a scheduling instruction, and analyzing the scheduling instruction by using a communication instruction analysis technology to obtain a hook-off operation application;
the unhooking operation application controls the linear operation of the motor through the unhooking execution unit to realize the unhooking operation;
and checking the unhooking operation by using execution position recovery to obtain a checking result, and transmitting the checking result to a dispatching center through network communication to obtain an automatic unhooking result.
Firstly, acquiring a scheduling instruction, and analyzing the scheduling instruction by using a communication instruction analysis technology to obtain a hook-off operation application; then, the unhooking operation application controls the linear operation of the motor through an unhooking execution unit to realize the unhooking operation; and finally, checking the unhooking operation by using execution position recovery to obtain a checking result, and transmitting the checking result to a dispatching center through network communication to obtain an automatic unhooking result. The method can realize automation of unhooking of the factory and mine locomotive transportation, realize accurate automatic operation, improve production efficiency and reduce safety accidents.
Preferably, the method for acquiring the dispatching instruction and analyzing the dispatching instruction by using a communication instruction analysis technology to acquire the unhooking operation application comprises the following steps:
acquiring a scheduling instruction, and analyzing the scheduling instruction on a real-time embedded platform by using a communication instruction analysis technology to acquire a data packet;
and checking and identifying according to the data packet to obtain an unhooking operation application.
Preferably, the unhooking operation application realizes the unhooking operation by controlling the linear operation of the motor through the unhooking execution unit, and comprises the following steps:
and transmitting the unhooking operation application to an unhooking execution unit, and controlling the linear operation of a motor through the unhooking execution unit to realize the unhooking operation.
Preferably, the unhooking operation is checked by using execution position recovery, a checking result is obtained, the checking result is transmitted to a dispatching center through network communication, and an automatic unhooking result is obtained. The method comprises the following steps:
transmitting the unhooking operation to an execution position recovery, checking the unhooking operation through the execution position recovery, checking whether the unhooking operation is completed or not, and obtaining a checking result;
and transmitting the inspection result to a dispatching center through network communication to obtain an automatic unhooking result.
An automatic unhooking device for a plant and mine railway, comprising:
the application module acquires a scheduling instruction, and analyzes the scheduling instruction by using a communication instruction analysis technology to acquire an unhooking operation application;
the execution module controls the linear operation of the motor through the unhooking execution unit to realize the unhooking operation;
and the recovery module is used for checking the unhooking operation by utilizing execution position recovery to obtain a checking result, and transmitting the checking result to a dispatching center through network communication to obtain an automatic unhooking result.
Preferably, the application module comprises:
the analysis unit is used for acquiring a scheduling instruction, analyzing the scheduling instruction on a real-time embedded platform by utilizing a communication instruction analysis technology and acquiring a data packet;
and the identification unit is used for verifying and identifying according to the data packet to obtain an unhooking operation application.
Preferably, the execution module includes:
and the execution unit transmits the unhooking operation application to the unhooking execution unit, and the unhooking operation is realized by controlling the linear operation of the motor by the unhooking execution unit.
Preferably, the recovery module comprises:
the recovery unit transmits the unhooking operation to execution position recovery, checks the unhooking operation through the execution position recovery, checks whether the unhooking operation is finished or not, and obtains a check result;
and the acquisition unit transmits the inspection result to a dispatching center through network communication to acquire an automatic unhooking result.
An electronic device comprising a memory and a processor, the memory for storing one or more computer instructions, wherein the one or more computer instructions are executed by the processor to implement a method of automatic unhooking of an industrial and mining railway as claimed in any one of the above.
A computer readable storage medium storing a computer program which, when executed, causes a computer to implement a method of automatically unhooking a plant and mine railway as claimed in any one of the above.
The invention has the following beneficial effects:
firstly, acquiring a scheduling instruction, and analyzing the scheduling instruction by using a communication instruction analysis technology to obtain a hook-off operation application; then, the unhooking operation application controls the linear operation of the motor through an unhooking execution unit to realize the unhooking operation; and finally, checking the unhooking operation by using execution position recovery to obtain a checking result, and transmitting the checking result to a dispatching center through network communication to obtain an automatic unhooking result. The method can realize automation of unhooking of the factory and mine locomotive transportation, realize accurate automatic operation, improve production efficiency and reduce safety accidents.
Drawings
FIG. 1 is a first flowchart of a method for automatically unhooking a factory and mine railway according to an embodiment of the present invention;
FIG. 2 is a second flowchart of an embodiment of the present invention for implementing an automatic unhooking method for a factory and mine railway;
FIG. 3 is a third flowchart of a method for automatically unhooking a factory and mine railway according to an embodiment of the present invention;
FIG. 4 is a fourth flowchart of a method for automatically unhooking a factory and mine railway according to an embodiment of the present invention;
fig. 5 is a flowchart of an embodiment of the present invention for implementing an automatic unhooking method for a factory and mine railway.
FIG. 6 is a schematic diagram of an automatic unhooking device for a factory and mine railway according to an embodiment of the present invention;
FIG. 7 is a schematic diagram of an application module for implementing an automatic unhooking device for a factory and mine railway according to an embodiment of the present invention;
FIG. 8 is a schematic diagram of an execution module for implementing an automatic unhooking device for a factory and mine railway according to an embodiment of the present invention;
FIG. 9 is a schematic diagram of a mining module for implementing an automatic unhooking device for a plant and mine railway according to an embodiment of the present invention;
FIG. 10 is a flowchart of an embodiment of the present invention for implementing an automatic unhooking device for a factory and mine railway;
fig. 11 is a schematic diagram of an electronic device for implementing an automatic unhooking method for an industrial and mining railway according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Before the technical solution of the present invention is introduced, a scenario to which the technical solution of the present invention may be applicable is exemplarily described.
Example 1
As shown in fig. 1, an automatic unhooking method for a factory and mine railway comprises the following steps:
s110, acquiring a scheduling instruction, and analyzing the scheduling instruction by using a communication instruction analysis technology to obtain a hook-off operation application;
s120, the unhooking operation application controls a motor to linearly operate through an unhooking execution unit to realize the unhooking operation;
s130, checking the unhooking operation by using execution position extraction to obtain a checking result, and transmitting the checking result to a dispatching center through network communication to obtain an automatic unhooking result.
According to the embodiment 1, firstly, a scheduling instruction is obtained, the scheduling instruction is analyzed by using a communication instruction analysis technology, and a unhooking operation application is obtained; then, the unhooking operation application controls the linear operation of the motor through an unhooking execution unit to realize the unhooking operation; and finally, checking the unhooking operation by using execution position recovery to obtain a checking result, and transmitting the checking result to a dispatching center through network communication to obtain an automatic unhooking result. The method can realize automation of unhooking of the factory and mine locomotive transportation, realize accurate automatic operation, improve production efficiency and reduce safety accidents.
Example 2
As shown in fig. 2, an automatic unhooking method for a factory and mine railway comprises the following steps:
s210, acquiring a scheduling instruction, and analyzing the scheduling instruction on a real-time embedded platform by using a communication instruction analysis technology to acquire a data packet;
and S220, checking and identifying according to the data packet to obtain an unhooking operation application.
According to the embodiment 2, firstly, the dispatching instruction can be received through the RJ45 network interface, the dispatching instruction is analyzed on the real-time embedded platform through the communication instruction analysis technology, the data packet is obtained, verification and identification are carried out according to the data packet, and the unhooking operation application is obtained.
Example 3
As shown in fig. 3, an automatic unhooking method for a factory and mine railway comprises the following steps:
and S310, transmitting the unhooking operation application to an unhooking execution unit, and controlling the linear operation of a motor through the unhooking execution unit to realize the unhooking operation.
In embodiment 3, first, a decoupling operation application is transmitted to the decoupling execution unit, the decoupling execution unit controls the linear operation of the motor, so that the requirements of smooth, smooth and quick decoupling are met, and the decoupling operation is smoothly realized.
Example 4
As shown in fig. 4, an automatic unhooking method for a factory and mine railway comprises the following steps:
s410, transmitting the unhooking operation to an execution position recovery, checking the unhooking operation through the execution position recovery, checking whether the unhooking operation is completed or not, and obtaining a checking result;
and S420, transmitting the checking result to a dispatching center through network communication to obtain an automatic unhooking result.
In embodiment 4, after the unhooking operation is completed, the unhooking operation is transmitted to the execution position recovery, the unhooking operation is checked through the execution position recovery, whether the unhooking operation is successfully completed is checked, if the unhooking position is not in place, the unhooking operation is not successfully completed, the unhooking operation can be fed back to the execution unit again for re-execution, if the third execution is unsuccessful, fault information can be determined, an inspection result is obtained, the inspection result is transmitted to the scheduling center through network communication, and an automatic unhooking result is obtained.
Example 5
As shown in fig. 5, one specific embodiment may be:
s510, acquiring a scheduling instruction, and analyzing the scheduling instruction by using a communication instruction analysis technology to acquire a unhooking operation application;
firstly, a dispatching instruction can be received through an RJ45 network interface, the dispatching instruction is analyzed on a real-time embedded platform by utilizing a communication instruction analysis technology, a data packet is obtained, verification and identification are carried out according to the data packet, and a hook picking operation application is obtained.
S520, the unhooking operation application controls the linear operation of the motor through the unhooking execution unit to realize the unhooking operation;
firstly, a decoupling operation application is transmitted to a decoupling execution unit, the decoupling execution unit controls a motor to linearly run, the requirements of smooth, smooth and quick decoupling are met, and decoupling operation is smoothly realized.
S530, transmitting the unhooking operation to an execution position recovery, checking the unhooking operation through the execution position recovery, checking whether the unhooking operation is completed or not, and obtaining a checking result;
after the unhooking operation is finished, the unhooking operation is transmitted to the execution position recovery, the unhooking operation is checked through the execution position recovery, whether the unhooking operation is finished or not is checked, if the unhooking position is not in place, the unhooking operation is not finished smoothly, the unhooking operation can be fed back to the execution unit again to be executed, if the third execution is unsuccessful, fault information can be judged, and a checking result is obtained.
And S540, transmitting the checking result to a dispatching center through network communication, and acquiring an automatic unhooking result.
The checking result is transmitted to the dispatching center through network communication, and the automatic unhooking result is obtained.
Example 6
As shown in fig. 6, an automatic unhooking device for a plant and mine railway comprises:
the application module 10 is used for acquiring a scheduling instruction, analyzing the scheduling instruction by using a communication instruction analysis technology and acquiring an unhooking operation application;
the execution module 20 controls the linear operation of the motor through the unhooking execution unit to realize the unhooking operation;
and the recovery module 30 is used for checking the unhooking operation by utilizing execution position recovery to obtain a checking result, and transmitting the checking result to the dispatching center through network communication to obtain an automatic unhooking result.
One embodiment of the above apparatus may be: firstly, an application module 10 acquires a scheduling instruction, and analyzes the scheduling instruction by using a communication instruction analysis technology to acquire an unhooking operation application; then, an execution module 20, the unhooking operation application realizes the unhooking operation by controlling the linear operation of the motor through an unhooking execution unit; and finally, the extraction module 30 checks the unhooking operation by using the execution position extraction to obtain a check result, and transmits the check result to the dispatching center through network communication to obtain an automatic unhooking result.
Example 7
As shown in fig. 7, an application module 10 of an automatic unhooking device for a factory and mine railway comprises:
the analysis unit 12 is used for acquiring a scheduling instruction, analyzing the scheduling instruction on a real-time embedded platform by using a communication instruction analysis technology, and acquiring a data packet;
and the identification unit 14 is used for verifying and identifying according to the data packet to obtain an unhooking operation application.
One embodiment of the application module 10 of the above apparatus may be: the system comprises an analysis unit 12 for obtaining a scheduling instruction, analyzing the scheduling instruction on a real-time embedded platform by using a communication instruction analysis technology, obtaining a data packet, and an identification unit 14 for verifying and identifying according to the data packet to obtain an unhooking operation application.
Example 8
As shown in fig. 8, an execution module 20 of an automatic unhooking apparatus for a plant and mine railway includes:
and the execution unit 22 transmits the unhooking operation application to the unhooking execution unit, and the unhooking operation is realized by controlling the linear operation of the motor through the unhooking execution unit.
One embodiment of the relevancy module 20 of the above apparatus may be: firstly, the execution unit 22 transmits the unhooking operation application to the unhooking execution unit, and the unhooking operation is realized by controlling the linear operation of the motor through the unhooking execution unit.
Example 9
As shown in fig. 9, an extraction module 30 of an automatic unhooking apparatus for a plant and mine railway includes:
the recovery unit 32 is used for transmitting the unhooking operation to execution position recovery, checking the unhooking operation through the execution position recovery, checking whether the unhooking operation is completed or not, and acquiring a checking result;
and the acquisition unit 34 transmits the inspection result to a dispatching center through network communication to acquire an automatic unhooking result.
One embodiment of the extraction module 30 of the above apparatus may be: the recovery unit 32 is used for transmitting the unhooking operation to execution position recovery, checking the unhooking operation through the execution position recovery, checking whether the unhooking operation is completed or not, and acquiring a checking result; and the acquisition unit 34 transmits the inspection result to a dispatching center through network communication to acquire an automatic unhooking result.
Example 10
As shown in fig. 10, one specific implementation may be:
s1010, acquiring a scheduling instruction, and analyzing the scheduling instruction by using a communication instruction analysis technology to acquire a unhooking operation application;
firstly, a dispatching instruction can be received through an RJ45 network interface, the dispatching instruction is analyzed on a real-time embedded platform by utilizing a communication instruction analysis technology, a data packet is obtained, verification and identification are carried out according to the data packet, and a hook picking operation application is obtained.
S1020, the unhooking operation application controls a motor to linearly operate through an unhooking execution unit to realize the unhooking operation;
firstly, a decoupling operation application is transmitted to a decoupling execution unit, the decoupling execution unit controls a motor to linearly run, the requirements of smooth, smooth and quick decoupling are met, and decoupling operation is smoothly realized.
S1030, transmitting the unhooking operation to an execution position recovery, checking the unhooking operation through the execution position recovery, checking whether the unhooking operation is finished or not, and obtaining a checking result;
after the unhooking operation is finished, the unhooking operation is transmitted to the execution position recovery, the unhooking operation is checked through the execution position recovery, whether the unhooking operation is finished or not is checked, if the unhooking position is not in place, the unhooking operation is not finished smoothly, the unhooking operation can be fed back to the execution unit again to be executed, if the third execution is unsuccessful, fault information can be judged, and a checking result is obtained.
And S1040, transmitting the checking result to a dispatching center through network communication, and obtaining an automatic unhooking result.
The checking result is transmitted to the dispatching center through network communication, and the automatic unhooking result is obtained.
Example 11
As shown in fig. 11, an electronic device comprises a memory 1101 and a processor 1102, wherein the memory 1101 is used for storing one or more computer instructions, wherein the one or more computer instructions are executed by the processor 1102 to implement a method for automatically unhooking an industrial and mining railway as described above.
It can be clearly understood by those skilled in the art that, for convenience and brevity of description, the specific working process of the electronic device described above may refer to the corresponding process in the foregoing method embodiment, and is not described herein again.
A computer-readable storage medium storing a computer program which, when executed, causes a computer to implement a method of automatic unhooking of a plant and mine railway as described above.
Illustratively, the computer program may be divided into one or more modules/units, which are stored in the memory 1101 and executed by the processor 1102 to implement the present invention. One or more modules/units may be a series of computer program instruction segments capable of performing certain functions, the instruction segments being used to describe the execution of a computer program in a computer device.
The computer device may be a desktop computer, a notebook, a palm computer, a cloud server, or other computing devices. The computer device may include, but is not limited to, a memory 1101, a processor 1102. Those skilled in the art will appreciate that the present embodiments are merely exemplary of a computing device and are not intended to limit the computing device, and may include more or fewer components, or some of the components may be combined, or different components, e.g., the computing device may also include input output devices, network access devices, buses, etc.
The processor 1102 may be a Central Processing Unit (CPU), other general purpose processor 1102, a digital signal processor 1102 (DSP), an Application Specific Integrated Circuit (ASIC), an off-the-shelf programmable gate array (FPGA) or other programmable logic device, discrete gate or transistor logic, discrete hardware components, etc. The general purpose processor 1102 may be a microprocessor 1102 or the processor 1102 may be any conventional processor 1102 or the like.
The storage 1101 may be an internal storage unit of the computer device, such as a hard disk or a memory of the computer device. The memory 1101 may also be an external storage device of the computer device, such as a plug-in hard disk, a Smart Media Card (SMC), a Secure Digital (SD) card, a flash card (FlashCard), etc. provided on the computer device. Further, the memory 1101 may also include both an internal storage unit and an external storage device of the computer device. The memory 1101 is used to store computer programs and other programs and data required by the computer device. The memory 1101 may also be used to temporarily store data that has been output or is to be output.
The above description is only an embodiment of the present invention, but the technical features of the present invention are not limited thereto, and any changes or modifications within the technical field of the present invention by those skilled in the art are covered by the claims of the present invention.
Claims (10)
1. An automatic unhooking method for a factory and mine railway is characterized by comprising the following steps:
acquiring a scheduling instruction, and analyzing the scheduling instruction by using a communication instruction analysis technology to obtain a hook-off operation application;
the unhooking operation application controls the linear operation of the motor through the unhooking execution unit to realize the unhooking operation;
and checking the unhooking operation by using execution position recovery to obtain a checking result, and transmitting the checking result to a dispatching center through network communication to obtain an automatic unhooking result.
2. The automatic unhooking method of the factory and mine railway according to claim 1, wherein the step of obtaining a scheduling instruction, and analyzing the scheduling instruction by using a communication instruction analysis technology to obtain an unhooking operation application comprises the following steps:
acquiring a scheduling instruction, and analyzing the scheduling instruction on a real-time embedded platform by using a communication instruction analysis technology to acquire a data packet;
and checking and identifying according to the data packet to obtain an unhooking operation application.
3. The automatic unhooking method for the plant and mine railways according to claim 2, wherein the unhooking operation application realizes the unhooking operation by controlling a motor to linearly run through an unhooking execution unit, and comprises the following steps:
and transmitting the unhooking operation application to an unhooking execution unit, and controlling the linear operation of a motor through the unhooking execution unit to realize the unhooking operation.
4. The automatic unhooking method of the factory and mine railway according to claim 3, wherein the unhooking operation is checked by using execution position mining, a checking result is obtained, the checking result is transmitted to a dispatching center through network communication, and an automatic unhooking result is obtained, comprising:
transmitting the unhooking operation to an execution position recovery, checking the unhooking operation through the execution position recovery, checking whether the unhooking operation is completed or not, and obtaining a checking result;
and transmitting the inspection result to a dispatching center through network communication to obtain an automatic unhooking result.
5. An automatic unhooking device of factory and mine railway, characterized in that includes:
the application module acquires a scheduling instruction, and analyzes the scheduling instruction by using a communication instruction analysis technology to acquire an unhooking operation application;
the execution module controls the linear operation of the motor through the unhooking execution unit to realize the unhooking operation;
and the recovery module is used for checking the unhooking operation by utilizing execution position recovery to obtain a checking result, and transmitting the checking result to a dispatching center through network communication to obtain an automatic unhooking result.
6. The automatic unhooking device for plant and mine railways according to claim 5, wherein the application module comprises:
the analysis unit is used for acquiring a scheduling instruction, analyzing the scheduling instruction on a real-time embedded platform by utilizing a communication instruction analysis technology and acquiring a data packet;
and the identification unit is used for verifying and identifying according to the data packet to obtain an unhooking operation application.
7. The automatic unhooking device for plant and mine railways according to claim 6, wherein the execution module comprises:
and the execution unit transmits the unhooking operation application to the unhooking execution unit, and the unhooking operation is realized by controlling the linear operation of the motor by the unhooking execution unit.
8. The automatic unhooking device for plant and mine railways according to claim 7, wherein the mining module comprises:
the recovery unit transmits the unhooking operation to execution position recovery, checks the unhooking operation through the execution position recovery, checks whether the unhooking operation is finished or not, and obtains a check result;
and the acquisition unit transmits the inspection result to a dispatching center through network communication to acquire an automatic unhooking result.
9. An electronic device, comprising a memory and a processor, the memory configured to store one or more computer instructions, wherein the one or more computer instructions are executed by the processor to implement a method of automatically unhooking a mill and mine railway as claimed in any one of claims 1 to 4.
10. A computer-readable storage medium storing a computer program, wherein the computer program causes a computer to implement the method for automatically unhooking a factory and mine railway according to any one of claims 1 to 4 when executed.
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| CN202011259163.3A CN112249077A (en) | 2020-11-12 | 2020-11-12 | Automatic unhooking method for factory and mine railways |
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| CN202011259163.3A CN112249077A (en) | 2020-11-12 | 2020-11-12 | Automatic unhooking method for factory and mine railways |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110899681A (en) * | 2018-12-28 | 2020-03-24 | 合肥工大高科信息科技股份有限公司 | Off-on-board and off-board vehicle-mounted control system and method |
| CN110281970A (en) * | 2019-08-01 | 2019-09-27 | 大连谷瑞特科技有限公司 | A kind of suspension type railway freight automatic decoupling device, system and method |
| CN110386164A (en) * | 2019-08-01 | 2019-10-29 | 大连谷瑞特科技有限公司 | A kind of railway freight intelligence decoupling device system and method |
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